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122 files changed, 18646 insertions, 0 deletions
diff --git a/libraries/EEPROM/EEPROM.cpp b/libraries/EEPROM/EEPROM.cpp new file mode 100755 index 0000000..dfa1deb --- /dev/null +++ b/libraries/EEPROM/EEPROM.cpp @@ -0,0 +1,50 @@ +/* + EEPROM.cpp - EEPROM library + Copyright (c) 2006 David A. Mellis. All right reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +/****************************************************************************** + * Includes + ******************************************************************************/ + +#include <avr/eeprom.h> +#include "Arduino.h" +#include "EEPROM.h" + +/****************************************************************************** + * Definitions + ******************************************************************************/ + +/****************************************************************************** + * Constructors + ******************************************************************************/ + +/****************************************************************************** + * User API + ******************************************************************************/ + +uint8_t EEPROMClass::read(int address) +{ + return eeprom_read_byte((unsigned char *) address); +} + +void EEPROMClass::write(int address, uint8_t value) +{ + eeprom_write_byte((unsigned char *) address, value); +} + +EEPROMClass EEPROM; diff --git a/libraries/EEPROM/EEPROM.h b/libraries/EEPROM/EEPROM.h new file mode 100755 index 0000000..aa2b577 --- /dev/null +++ b/libraries/EEPROM/EEPROM.h @@ -0,0 +1,35 @@ +/* + EEPROM.h - EEPROM library + Copyright (c) 2006 David A. Mellis. All right reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#ifndef EEPROM_h +#define EEPROM_h + +#include <inttypes.h> + +class EEPROMClass +{ + public: + uint8_t read(int); + void write(int, uint8_t); +}; + +extern EEPROMClass EEPROM; + +#endif + diff --git a/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.ino b/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.ino new file mode 100644 index 0000000..d1e29bd --- /dev/null +++ b/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.ino @@ -0,0 +1,23 @@ +/* + * EEPROM Clear + * + * Sets all of the bytes of the EEPROM to 0. + * This example code is in the public domain. + + */ + +#include <EEPROM.h> + +void setup() +{ + // write a 0 to all 512 bytes of the EEPROM + for (int i = 0; i < 512; i++) + EEPROM.write(i, 0); + + // turn the LED on when we're done + digitalWrite(13, HIGH); +} + +void loop() +{ +} diff --git a/libraries/EEPROM/examples/eeprom_read/eeprom_read.ino b/libraries/EEPROM/examples/eeprom_read/eeprom_read.ino new file mode 100644 index 0000000..88e3488 --- /dev/null +++ b/libraries/EEPROM/examples/eeprom_read/eeprom_read.ino @@ -0,0 +1,39 @@ +/* + * EEPROM Read + * + * Reads the value of each byte of the EEPROM and prints it + * to the computer. + * This example code is in the public domain. + */ + +#include <EEPROM.h> + +// start reading from the first byte (address 0) of the EEPROM +int address = 0; +byte value; + +void setup() +{ + Serial.begin(9600); +} + +void loop() +{ + // read a byte from the current address of the EEPROM + value = EEPROM.read(address); + + Serial.print(address); + Serial.print("\t"); + Serial.print(value, DEC); + Serial.println(); + + // advance to the next address of the EEPROM + address = address + 1; + + // there are only 512 bytes of EEPROM, from 0 to 511, so if we're + // on address 512, wrap around to address 0 + if (address == 512) + address = 0; + + delay(500); +} diff --git a/libraries/EEPROM/examples/eeprom_write/eeprom_write.ino b/libraries/EEPROM/examples/eeprom_write/eeprom_write.ino new file mode 100644 index 0000000..ae7c57e --- /dev/null +++ b/libraries/EEPROM/examples/eeprom_write/eeprom_write.ino @@ -0,0 +1,38 @@ +/* + * EEPROM Write + * + * Stores values read from analog input 0 into the EEPROM. + * These values will stay in the EEPROM when the board is + * turned off and may be retrieved later by another sketch. + */ + +#include <EEPROM.h> + +// the current address in the EEPROM (i.e. which byte +// we're going to write to next) +int addr = 0; + +void setup() +{ +} + +void loop() +{ + // need to divide by 4 because analog inputs range from + // 0 to 1023 and each byte of the EEPROM can only hold a + // value from 0 to 255. + int val = analogRead(0) / 4; + + // write the value to the appropriate byte of the EEPROM. + // these values will remain there when the board is + // turned off. + EEPROM.write(addr, val); + + // advance to the next address. there are 512 bytes in + // the EEPROM, so go back to 0 when we hit 512. + addr = addr + 1; + if (addr == 512) + addr = 0; + + delay(100); +} diff --git a/libraries/EEPROM/keywords.txt b/libraries/EEPROM/keywords.txt new file mode 100644 index 0000000..d3218fe --- /dev/null +++ b/libraries/EEPROM/keywords.txt @@ -0,0 +1,18 @@ +####################################### +# Syntax Coloring Map For Ultrasound +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +EEPROM KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### + +####################################### +# Constants (LITERAL1) +####################################### + diff --git a/libraries/Ethernet/Dhcp.cpp b/libraries/Ethernet/Dhcp.cpp new file mode 100755 index 0000000..62bbfeb --- /dev/null +++ b/libraries/Ethernet/Dhcp.cpp @@ -0,0 +1,359 @@ +// DHCP Library v0.3 - April 25, 2009
+// Author: Jordan Terrell - blog.jordanterrell.com
+
+#include "w5100.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include "Dhcp.h"
+#include "Arduino.h"
+#include "util.h"
+
+int DhcpClass::beginWithDHCP(uint8_t *mac, unsigned long timeout, unsigned long responseTimeout)
+{
+ uint8_t dhcp_state = STATE_DHCP_START;
+ uint8_t messageType = 0;
+
+ // zero out _dhcpMacAddr, _dhcpSubnetMask, _dhcpGatewayIp, _dhcpLocalIp, _dhcpDhcpServerIp, _dhcpDnsServerIp
+ memset(_dhcpMacAddr, 0, 26);
+
+ memcpy((void*)_dhcpMacAddr, (void*)mac, 6);
+
+ // Pick an initial transaction ID
+ _dhcpTransactionId = random(1UL, 2000UL);
+ _dhcpInitialTransactionId = _dhcpTransactionId;
+
+ if (_dhcpUdpSocket.begin(DHCP_CLIENT_PORT) == 0)
+ {
+ // Couldn't get a socket
+ return 0;
+ }
+
+ presend_DHCP();
+
+ int result = 0;
+
+ unsigned long startTime = millis();
+
+ while(dhcp_state != STATE_DHCP_LEASED)
+ {
+ if(dhcp_state == STATE_DHCP_START)
+ {
+ _dhcpTransactionId++;
+
+ send_DHCP_MESSAGE(DHCP_DISCOVER, ((millis() - startTime) / 1000));
+ dhcp_state = STATE_DHCP_DISCOVER;
+ }
+ else if(dhcp_state == STATE_DHCP_DISCOVER)
+ {
+ uint32_t respId;
+ messageType = parseDHCPResponse(responseTimeout, respId);
+ if(messageType == DHCP_OFFER)
+ {
+ // We'll use the transaction ID that the offer came with,
+ // rather than the one we were up to
+ _dhcpTransactionId = respId;
+ send_DHCP_MESSAGE(DHCP_REQUEST, ((millis() - startTime) / 1000));
+ dhcp_state = STATE_DHCP_REQUEST;
+ }
+ }
+ else if(dhcp_state == STATE_DHCP_REQUEST)
+ {
+ uint32_t respId;
+ messageType = parseDHCPResponse(responseTimeout, respId);
+ if(messageType == DHCP_ACK)
+ {
+ dhcp_state = STATE_DHCP_LEASED;
+ result = 1;
+ }
+ else if(messageType == DHCP_NAK)
+ dhcp_state = STATE_DHCP_START;
+ }
+
+ if(messageType == 255)
+ {
+ messageType = 0;
+ dhcp_state = STATE_DHCP_START;
+ }
+
+ if(result != 1 && ((millis() - startTime) > timeout))
+ break;
+ }
+
+ // We're done with the socket now
+ _dhcpUdpSocket.stop();
+ _dhcpTransactionId++;
+
+ return result;
+}
+
+void DhcpClass::presend_DHCP()
+{
+}
+
+void DhcpClass::send_DHCP_MESSAGE(uint8_t messageType, uint16_t secondsElapsed)
+{
+ uint8_t buffer[32];
+ memset(buffer, 0, 32);
+ IPAddress dest_addr( 255, 255, 255, 255 ); // Broadcast address
+
+ if (-1 == _dhcpUdpSocket.beginPacket(dest_addr, DHCP_SERVER_PORT))
+ {
+ // FIXME Need to return errors
+ return;
+ }
+
+ buffer[0] = DHCP_BOOTREQUEST; // op
+ buffer[1] = DHCP_HTYPE10MB; // htype
+ buffer[2] = DHCP_HLENETHERNET; // hlen
+ buffer[3] = DHCP_HOPS; // hops
+
+ // xid
+ unsigned long xid = htonl(_dhcpTransactionId);
+ memcpy(buffer + 4, &(xid), 4);
+
+ // 8, 9 - seconds elapsed
+ buffer[8] = ((secondsElapsed & 0xff00) >> 8);
+ buffer[9] = (secondsElapsed & 0x00ff);
+
+ // flags
+ unsigned short flags = htons(DHCP_FLAGSBROADCAST);
+ memcpy(buffer + 10, &(flags), 2);
+
+ // ciaddr: already zeroed
+ // yiaddr: already zeroed
+ // siaddr: already zeroed
+ // giaddr: already zeroed
+
+ //put data in W5100 transmit buffer
+ _dhcpUdpSocket.write(buffer, 28);
+
+ memset(buffer, 0, 32); // clear local buffer
+
+ memcpy(buffer, _dhcpMacAddr, 6); // chaddr
+
+ //put data in W5100 transmit buffer
+ _dhcpUdpSocket.write(buffer, 16);
+
+ memset(buffer, 0, 32); // clear local buffer
+
+ // leave zeroed out for sname && file
+ // put in W5100 transmit buffer x 6 (192 bytes)
+
+ for(int i = 0; i < 6; i++) {
+ _dhcpUdpSocket.write(buffer, 32);
+ }
+
+ // OPT - Magic Cookie
+ buffer[0] = (uint8_t)((MAGIC_COOKIE >> 24)& 0xFF);
+ buffer[1] = (uint8_t)((MAGIC_COOKIE >> 16)& 0xFF);
+ buffer[2] = (uint8_t)((MAGIC_COOKIE >> 8)& 0xFF);
+ buffer[3] = (uint8_t)(MAGIC_COOKIE& 0xFF);
+
+ // OPT - message type
+ buffer[4] = dhcpMessageType;
+ buffer[5] = 0x01;
+ buffer[6] = messageType; //DHCP_REQUEST;
+
+ // OPT - client identifier
+ buffer[7] = dhcpClientIdentifier;
+ buffer[8] = 0x07;
+ buffer[9] = 0x01;
+ memcpy(buffer + 10, _dhcpMacAddr, 6);
+
+ // OPT - host name
+ buffer[16] = hostName;
+ buffer[17] = strlen(HOST_NAME) + 6; // length of hostname + last 3 bytes of mac address
+ strcpy((char*)&(buffer[18]), HOST_NAME);
+
+ printByte((char*)&(buffer[24]), _dhcpMacAddr[3]);
+ printByte((char*)&(buffer[26]), _dhcpMacAddr[4]);
+ printByte((char*)&(buffer[28]), _dhcpMacAddr[5]);
+
+ //put data in W5100 transmit buffer
+ _dhcpUdpSocket.write(buffer, 30);
+
+ if(messageType == DHCP_REQUEST)
+ {
+ buffer[0] = dhcpRequestedIPaddr;
+ buffer[1] = 0x04;
+ buffer[2] = _dhcpLocalIp[0];
+ buffer[3] = _dhcpLocalIp[1];
+ buffer[4] = _dhcpLocalIp[2];
+ buffer[5] = _dhcpLocalIp[3];
+
+ buffer[6] = dhcpServerIdentifier;
+ buffer[7] = 0x04;
+ buffer[8] = _dhcpDhcpServerIp[0];
+ buffer[9] = _dhcpDhcpServerIp[1];
+ buffer[10] = _dhcpDhcpServerIp[2];
+ buffer[11] = _dhcpDhcpServerIp[3];
+
+ //put data in W5100 transmit buffer
+ _dhcpUdpSocket.write(buffer, 12);
+ }
+
+ buffer[0] = dhcpParamRequest;
+ buffer[1] = 0x06;
+ buffer[2] = subnetMask;
+ buffer[3] = routersOnSubnet;
+ buffer[4] = dns;
+ buffer[5] = domainName;
+ buffer[6] = dhcpT1value;
+ buffer[7] = dhcpT2value;
+ buffer[8] = endOption;
+
+ //put data in W5100 transmit buffer
+ _dhcpUdpSocket.write(buffer, 9);
+
+ _dhcpUdpSocket.endPacket();
+}
+
+uint8_t DhcpClass::parseDHCPResponse(unsigned long responseTimeout, uint32_t& transactionId)
+{
+ uint8_t type = 0;
+ uint8_t opt_len = 0;
+
+ unsigned long startTime = millis();
+
+ while(_dhcpUdpSocket.parsePacket() <= 0)
+ {
+ if((millis() - startTime) > responseTimeout)
+ {
+ return 255;
+ }
+ delay(50);
+ }
+ // start reading in the packet
+ RIP_MSG_FIXED fixedMsg;
+ _dhcpUdpSocket.read((uint8_t*)&fixedMsg, sizeof(RIP_MSG_FIXED));
+
+ if(fixedMsg.op == DHCP_BOOTREPLY && _dhcpUdpSocket.remotePort() == DHCP_SERVER_PORT)
+ {
+ transactionId = ntohl(fixedMsg.xid);
+ if(memcmp(fixedMsg.chaddr, _dhcpMacAddr, 6) != 0 || (transactionId < _dhcpInitialTransactionId) || (transactionId > _dhcpTransactionId))
+ {
+ // Need to read the rest of the packet here regardless
+ _dhcpUdpSocket.flush();
+ return 0;
+ }
+
+ memcpy(_dhcpLocalIp, fixedMsg.yiaddr, 4);
+
+ // Skip to the option part
+ // Doing this a byte at a time so we don't have to put a big buffer
+ // on the stack (as we don't have lots of memory lying around)
+ for (int i =0; i < (240 - (int)sizeof(RIP_MSG_FIXED)); i++)
+ {
+ _dhcpUdpSocket.read(); // we don't care about the returned byte
+ }
+
+ while (_dhcpUdpSocket.available() > 0)
+ {
+ switch (_dhcpUdpSocket.read())
+ {
+ case endOption :
+ break;
+
+ case padOption :
+ break;
+
+ case dhcpMessageType :
+ opt_len = _dhcpUdpSocket.read();
+ type = _dhcpUdpSocket.read();
+ break;
+
+ case subnetMask :
+ opt_len = _dhcpUdpSocket.read();
+ _dhcpUdpSocket.read(_dhcpSubnetMask, 4);
+ break;
+
+ case routersOnSubnet :
+ opt_len = _dhcpUdpSocket.read();
+ _dhcpUdpSocket.read(_dhcpGatewayIp, 4);
+ for (int i = 0; i < opt_len-4; i++)
+ {
+ _dhcpUdpSocket.read();
+ }
+ break;
+
+ case dns :
+ opt_len = _dhcpUdpSocket.read();
+ _dhcpUdpSocket.read(_dhcpDnsServerIp, 4);
+ for (int i = 0; i < opt_len-4; i++)
+ {
+ _dhcpUdpSocket.read();
+ }
+ break;
+
+ case dhcpServerIdentifier :
+ opt_len = _dhcpUdpSocket.read();
+ if( *((uint32_t*)_dhcpDhcpServerIp) == 0 ||
+ IPAddress(_dhcpDhcpServerIp) == _dhcpUdpSocket.remoteIP() )
+ {
+ _dhcpUdpSocket.read(_dhcpDhcpServerIp, sizeof(_dhcpDhcpServerIp));
+ }
+ else
+ {
+ // Skip over the rest of this option
+ while (opt_len--)
+ {
+ _dhcpUdpSocket.read();
+ }
+ }
+ break;
+
+ case dhcpIPaddrLeaseTime :
+ default :
+ opt_len = _dhcpUdpSocket.read();
+ // Skip over the rest of this option
+ while (opt_len--)
+ {
+ _dhcpUdpSocket.read();
+ }
+ break;
+ }
+ }
+ }
+
+ // Need to skip to end of the packet regardless here
+ _dhcpUdpSocket.flush();
+
+ return type;
+}
+
+IPAddress DhcpClass::getLocalIp()
+{
+ return IPAddress(_dhcpLocalIp);
+}
+
+IPAddress DhcpClass::getSubnetMask()
+{
+ return IPAddress(_dhcpSubnetMask);
+}
+
+IPAddress DhcpClass::getGatewayIp()
+{
+ return IPAddress(_dhcpGatewayIp);
+}
+
+IPAddress DhcpClass::getDhcpServerIp()
+{
+ return IPAddress(_dhcpDhcpServerIp);
+}
+
+IPAddress DhcpClass::getDnsServerIp()
+{
+ return IPAddress(_dhcpDnsServerIp);
+}
+
+void DhcpClass::printByte(char * buf, uint8_t n ) {
+ char *str = &buf[1];
+ buf[0]='0';
+ do {
+ unsigned long m = n;
+ n /= 16;
+ char c = m - 16 * n;
+ *str-- = c < 10 ? c + '0' : c + 'A' - 10;
+ } while(n);
+}
diff --git a/libraries/Ethernet/Dhcp.h b/libraries/Ethernet/Dhcp.h new file mode 100755 index 0000000..149876d --- /dev/null +++ b/libraries/Ethernet/Dhcp.h @@ -0,0 +1,159 @@ +// DHCP Library v0.3 - April 25, 2009
+// Author: Jordan Terrell - blog.jordanterrell.com
+
+#ifndef Dhcp_h
+#define Dhcp_h
+
+#include "EthernetUdp.h"
+
+/* DHCP state machine. */
+#define STATE_DHCP_START 0
+#define STATE_DHCP_DISCOVER 1
+#define STATE_DHCP_REQUEST 2
+#define STATE_DHCP_LEASED 3
+#define STATE_DHCP_REREQUEST 4
+#define STATE_DHCP_RELEASE 5
+
+#define DHCP_FLAGSBROADCAST 0x8000
+
+/* UDP port numbers for DHCP */
+#define DHCP_SERVER_PORT 67 /* from server to client */
+#define DHCP_CLIENT_PORT 68 /* from client to server */
+
+/* DHCP message OP code */
+#define DHCP_BOOTREQUEST 1
+#define DHCP_BOOTREPLY 2
+
+/* DHCP message type */
+#define DHCP_DISCOVER 1
+#define DHCP_OFFER 2
+#define DHCP_REQUEST 3
+#define DHCP_DECLINE 4
+#define DHCP_ACK 5
+#define DHCP_NAK 6
+#define DHCP_RELEASE 7
+#define DHCP_INFORM 8
+
+#define DHCP_HTYPE10MB 1
+#define DHCP_HTYPE100MB 2
+
+#define DHCP_HLENETHERNET 6
+#define DHCP_HOPS 0
+#define DHCP_SECS 0
+
+#define MAGIC_COOKIE 0x63825363
+#define MAX_DHCP_OPT 16
+
+#define HOST_NAME "WIZnet"
+
+enum
+{
+ padOption = 0,
+ subnetMask = 1,
+ timerOffset = 2,
+ routersOnSubnet = 3,
+ /* timeServer = 4,
+ nameServer = 5,*/
+ dns = 6,
+ /*logServer = 7,
+ cookieServer = 8,
+ lprServer = 9,
+ impressServer = 10,
+ resourceLocationServer = 11,*/
+ hostName = 12,
+ /*bootFileSize = 13,
+ meritDumpFile = 14,*/
+ domainName = 15,
+ /*swapServer = 16,
+ rootPath = 17,
+ extentionsPath = 18,
+ IPforwarding = 19,
+ nonLocalSourceRouting = 20,
+ policyFilter = 21,
+ maxDgramReasmSize = 22,
+ defaultIPTTL = 23,
+ pathMTUagingTimeout = 24,
+ pathMTUplateauTable = 25,
+ ifMTU = 26,
+ allSubnetsLocal = 27,
+ broadcastAddr = 28,
+ performMaskDiscovery = 29,
+ maskSupplier = 30,
+ performRouterDiscovery = 31,
+ routerSolicitationAddr = 32,
+ staticRoute = 33,
+ trailerEncapsulation = 34,
+ arpCacheTimeout = 35,
+ ethernetEncapsulation = 36,
+ tcpDefaultTTL = 37,
+ tcpKeepaliveInterval = 38,
+ tcpKeepaliveGarbage = 39,
+ nisDomainName = 40,
+ nisServers = 41,
+ ntpServers = 42,
+ vendorSpecificInfo = 43,
+ netBIOSnameServer = 44,
+ netBIOSdgramDistServer = 45,
+ netBIOSnodeType = 46,
+ netBIOSscope = 47,
+ xFontServer = 48,
+ xDisplayManager = 49,*/
+ dhcpRequestedIPaddr = 50,
+ dhcpIPaddrLeaseTime = 51,
+ /*dhcpOptionOverload = 52,*/
+ dhcpMessageType = 53,
+ dhcpServerIdentifier = 54,
+ dhcpParamRequest = 55,
+ /*dhcpMsg = 56,
+ dhcpMaxMsgSize = 57,*/
+ dhcpT1value = 58,
+ dhcpT2value = 59,
+ /*dhcpClassIdentifier = 60,*/
+ dhcpClientIdentifier = 61,
+ endOption = 255
+};
+
+typedef struct _RIP_MSG_FIXED
+{
+ uint8_t op;
+ uint8_t htype;
+ uint8_t hlen;
+ uint8_t hops;
+ uint32_t xid;
+ uint16_t secs;
+ uint16_t flags;
+ uint8_t ciaddr[4];
+ uint8_t yiaddr[4];
+ uint8_t siaddr[4];
+ uint8_t giaddr[4];
+ uint8_t chaddr[6];
+}RIP_MSG_FIXED;
+
+class DhcpClass {
+private:
+ uint32_t _dhcpInitialTransactionId;
+ uint32_t _dhcpTransactionId;
+ uint8_t _dhcpMacAddr[6];
+ uint8_t _dhcpLocalIp[4];
+ uint8_t _dhcpSubnetMask[4];
+ uint8_t _dhcpGatewayIp[4];
+ uint8_t _dhcpDhcpServerIp[4];
+ uint8_t _dhcpDnsServerIp[4];
+ EthernetUDP _dhcpUdpSocket;
+
+ void presend_DHCP();
+ void send_DHCP_MESSAGE(uint8_t, uint16_t);
+ void printByte(char *, uint8_t);
+
+ uint8_t parseDHCPResponse(unsigned long responseTimeout, uint32_t& transactionId);
+public:
+ IPAddress getLocalIp();
+ IPAddress getSubnetMask();
+ IPAddress getGatewayIp();
+ IPAddress getDhcpServerIp();
+ IPAddress getDnsServerIp();
+
+ int beginWithDHCP(uint8_t *, unsigned long timeout = 60000, unsigned long responseTimeout = 4000);
+};
+
+#endif
diff --git a/libraries/Ethernet/Dns.cpp b/libraries/Ethernet/Dns.cpp new file mode 100644 index 0000000..b3c1a9d --- /dev/null +++ b/libraries/Ethernet/Dns.cpp @@ -0,0 +1,423 @@ +// Arduino DNS client for WizNet5100-based Ethernet shield +// (c) Copyright 2009-2010 MCQN Ltd. +// Released under Apache License, version 2.0 + +#include "w5100.h" +#include "EthernetUdp.h" +#include "util.h" + +#include "Dns.h" +#include <string.h> +//#include <stdlib.h> +#include "Arduino.h" + + +#define SOCKET_NONE 255 +// Various flags and header field values for a DNS message +#define UDP_HEADER_SIZE 8 +#define DNS_HEADER_SIZE 12 +#define TTL_SIZE 4 +#define QUERY_FLAG (0) +#define RESPONSE_FLAG (1<<15) +#define QUERY_RESPONSE_MASK (1<<15) +#define OPCODE_STANDARD_QUERY (0) +#define OPCODE_INVERSE_QUERY (1<<11) +#define OPCODE_STATUS_REQUEST (2<<11) +#define OPCODE_MASK (15<<11) +#define AUTHORITATIVE_FLAG (1<<10) +#define TRUNCATION_FLAG (1<<9) +#define RECURSION_DESIRED_FLAG (1<<8) +#define RECURSION_AVAILABLE_FLAG (1<<7) +#define RESP_NO_ERROR (0) +#define RESP_FORMAT_ERROR (1) +#define RESP_SERVER_FAILURE (2) +#define RESP_NAME_ERROR (3) +#define RESP_NOT_IMPLEMENTED (4) +#define RESP_REFUSED (5) +#define RESP_MASK (15) +#define TYPE_A (0x0001) +#define CLASS_IN (0x0001) +#define LABEL_COMPRESSION_MASK (0xC0) +// Port number that DNS servers listen on +#define DNS_PORT 53 + +// Possible return codes from ProcessResponse +#define SUCCESS 1 +#define TIMED_OUT -1 +#define INVALID_SERVER -2 +#define TRUNCATED -3 +#define INVALID_RESPONSE -4 + +void DNSClient::begin(const IPAddress& aDNSServer) +{ + iDNSServer = aDNSServer; + iRequestId = 0; +} + + +int DNSClient::inet_aton(const char* aIPAddrString, IPAddress& aResult) +{ + // See if we've been given a valid IP address + const char* p =aIPAddrString; + while (*p && + ( (*p == '.') || (*p >= '0') || (*p <= '9') )) + { + p++; + } + + if (*p == '\0') + { + // It's looking promising, we haven't found any invalid characters + p = aIPAddrString; + int segment =0; + int segmentValue =0; + while (*p && (segment < 4)) + { + if (*p == '.') + { + // We've reached the end of a segment + if (segmentValue > 255) + { + // You can't have IP address segments that don't fit in a byte + return 0; + } + else + { + aResult[segment] = (byte)segmentValue; + segment++; + segmentValue = 0; + } + } + else + { + // Next digit + segmentValue = (segmentValue*10)+(*p - '0'); + } + p++; + } + // We've reached the end of address, but there'll still be the last + // segment to deal with + if ((segmentValue > 255) || (segment > 3)) + { + // You can't have IP address segments that don't fit in a byte, + // or more than four segments + return 0; + } + else + { + aResult[segment] = (byte)segmentValue; + return 1; + } + } + else + { + return 0; + } +} + +int DNSClient::getHostByName(const char* aHostname, IPAddress& aResult) +{ + int ret =0; + + // See if it's a numeric IP address + if (inet_aton(aHostname, aResult)) + { + // It is, our work here is done + return 1; + } + + // Check we've got a valid DNS server to use + if (iDNSServer == INADDR_NONE) + { + return INVALID_SERVER; + } + + // Find a socket to use + if (iUdp.begin(1024+(millis() & 0xF)) == 1) + { + // Try up to three times + int retries = 0; +// while ((retries < 3) && (ret <= 0)) + { + // Send DNS request + ret = iUdp.beginPacket(iDNSServer, DNS_PORT); + if (ret != 0) + { + // Now output the request data + ret = BuildRequest(aHostname); + if (ret != 0) + { + // And finally send the request + ret = iUdp.endPacket(); + if (ret != 0) + { + // Now wait for a response + int wait_retries = 0; + ret = TIMED_OUT; + while ((wait_retries < 3) && (ret == TIMED_OUT)) + { + ret = ProcessResponse(5000, aResult); + wait_retries++; + } + } + } + } + retries++; + } + + // We're done with the socket now + iUdp.stop(); + } + + return ret; +} + +uint16_t DNSClient::BuildRequest(const char* aName) +{ + // Build header + // 1 1 1 1 1 1 + // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 + // +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + // | ID | + // +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + // |QR| Opcode |AA|TC|RD|RA| Z | RCODE | + // +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + // | QDCOUNT | + // +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + // | ANCOUNT | + // +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + // | NSCOUNT | + // +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + // | ARCOUNT | + // +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + // As we only support one request at a time at present, we can simplify + // some of this header + iRequestId = millis(); // generate a random ID + uint16_t twoByteBuffer; + + // FIXME We should also check that there's enough space available to write to, rather + // FIXME than assume there's enough space (as the code does at present) + iUdp.write((uint8_t*)&iRequestId, sizeof(iRequestId)); + + twoByteBuffer = htons(QUERY_FLAG | OPCODE_STANDARD_QUERY | RECURSION_DESIRED_FLAG); + iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer)); + + twoByteBuffer = htons(1); // One question record + iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer)); + + twoByteBuffer = 0; // Zero answer records + iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer)); + + iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer)); + // and zero additional records + iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer)); + + // Build question + const char* start =aName; + const char* end =start; + uint8_t len; + // Run through the name being requested + while (*end) + { + // Find out how long this section of the name is + end = start; + while (*end && (*end != '.') ) + { + end++; + } + + if (end-start > 0) + { + // Write out the size of this section + len = end-start; + iUdp.write(&len, sizeof(len)); + // And then write out the section + iUdp.write((uint8_t*)start, end-start); + } + start = end+1; + } + + // We've got to the end of the question name, so + // terminate it with a zero-length section + len = 0; + iUdp.write(&len, sizeof(len)); + // Finally the type and class of question + twoByteBuffer = htons(TYPE_A); + iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer)); + + twoByteBuffer = htons(CLASS_IN); // Internet class of question + iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer)); + // Success! Everything buffered okay + return 1; +} + + +uint16_t DNSClient::ProcessResponse(uint16_t aTimeout, IPAddress& aAddress) +{ + uint32_t startTime = millis(); + + // Wait for a response packet + while(iUdp.parsePacket() <= 0) + { + if((millis() - startTime) > aTimeout) + return TIMED_OUT; + delay(50); + } + + // We've had a reply! + // Read the UDP header + uint8_t header[DNS_HEADER_SIZE]; // Enough space to reuse for the DNS header + // Check that it's a response from the right server and the right port + if ( (iDNSServer != iUdp.remoteIP()) || + (iUdp.remotePort() != DNS_PORT) ) + { + // It's not from who we expected + return INVALID_SERVER; + } + + // Read through the rest of the response + if (iUdp.available() < DNS_HEADER_SIZE) + { + return TRUNCATED; + } + iUdp.read(header, DNS_HEADER_SIZE); + + uint16_t header_flags = htons(*((uint16_t*)&header[2])); + // Check that it's a response to this request + if ( ( iRequestId != (*((uint16_t*)&header[0])) ) || + ((header_flags & QUERY_RESPONSE_MASK) != (uint16_t)RESPONSE_FLAG) ) + { + // Mark the entire packet as read + iUdp.flush(); + return INVALID_RESPONSE; + } + // Check for any errors in the response (or in our request) + // although we don't do anything to get round these + if ( (header_flags & TRUNCATION_FLAG) || (header_flags & RESP_MASK) ) + { + // Mark the entire packet as read + iUdp.flush(); + return -5; //INVALID_RESPONSE; + } + + // And make sure we've got (at least) one answer + uint16_t answerCount = htons(*((uint16_t*)&header[6])); + if (answerCount == 0 ) + { + // Mark the entire packet as read + iUdp.flush(); + return -6; //INVALID_RESPONSE; + } + + // Skip over any questions + for (uint16_t i =0; i < htons(*((uint16_t*)&header[4])); i++) + { + // Skip over the name + uint8_t len; + do + { + iUdp.read(&len, sizeof(len)); + if (len > 0) + { + // Don't need to actually read the data out for the string, just + // advance ptr to beyond it + while(len--) + { + iUdp.read(); // we don't care about the returned byte + } + } + } while (len != 0); + + // Now jump over the type and class + for (int i =0; i < 4; i++) + { + iUdp.read(); // we don't care about the returned byte + } + } + + // Now we're up to the bit we're interested in, the answer + // There might be more than one answer (although we'll just use the first + // type A answer) and some authority and additional resource records but + // we're going to ignore all of them. + + for (uint16_t i =0; i < answerCount; i++) + { + // Skip the name + uint8_t len; + do + { + iUdp.read(&len, sizeof(len)); + if ((len & LABEL_COMPRESSION_MASK) == 0) + { + // It's just a normal label + if (len > 0) + { + // And it's got a length + // Don't need to actually read the data out for the string, + // just advance ptr to beyond it + while(len--) + { + iUdp.read(); // we don't care about the returned byte + } + } + } + else + { + // This is a pointer to a somewhere else in the message for the + // rest of the name. We don't care about the name, and RFC1035 + // says that a name is either a sequence of labels ended with a + // 0 length octet or a pointer or a sequence of labels ending in + // a pointer. Either way, when we get here we're at the end of + // the name + // Skip over the pointer + iUdp.read(); // we don't care about the returned byte + // And set len so that we drop out of the name loop + len = 0; + } + } while (len != 0); + + // Check the type and class + uint16_t answerType; + uint16_t answerClass; + iUdp.read((uint8_t*)&answerType, sizeof(answerType)); + iUdp.read((uint8_t*)&answerClass, sizeof(answerClass)); + + // Ignore the Time-To-Live as we don't do any caching + for (int i =0; i < TTL_SIZE; i++) + { + iUdp.read(); // we don't care about the returned byte + } + + // And read out the length of this answer + // Don't need header_flags anymore, so we can reuse it here + iUdp.read((uint8_t*)&header_flags, sizeof(header_flags)); + + if ( (htons(answerType) == TYPE_A) && (htons(answerClass) == CLASS_IN) ) + { + if (htons(header_flags) != 4) + { + // It's a weird size + // Mark the entire packet as read + iUdp.flush(); + return -9;//INVALID_RESPONSE; + } + iUdp.read(aAddress.raw_address(), 4); + return SUCCESS; + } + else + { + // This isn't an answer type we're after, move onto the next one + for (uint16_t i =0; i < htons(header_flags); i++) + { + iUdp.read(); // we don't care about the returned byte + } + } + } + + // Mark the entire packet as read + iUdp.flush(); + + // If we get here then we haven't found an answer + return -10;//INVALID_RESPONSE; +} + diff --git a/libraries/Ethernet/Dns.h b/libraries/Ethernet/Dns.h new file mode 100644 index 0000000..6bcb98a --- /dev/null +++ b/libraries/Ethernet/Dns.h @@ -0,0 +1,41 @@ +// Arduino DNS client for WizNet5100-based Ethernet shield
+// (c) Copyright 2009-2010 MCQN Ltd.
+// Released under Apache License, version 2.0
+
+#ifndef DNSClient_h
+#define DNSClient_h
+
+#include <EthernetUdp.h>
+
+class DNSClient
+{
+public:
+ // ctor
+ void begin(const IPAddress& aDNSServer);
+
+ /** Convert a numeric IP address string into a four-byte IP address.
+ @param aIPAddrString IP address to convert
+ @param aResult IPAddress structure to store the returned IP address
+ @result 1 if aIPAddrString was successfully converted to an IP address,
+ else error code
+ */
+ int inet_aton(const char *aIPAddrString, IPAddress& aResult);
+
+ /** Resolve the given hostname to an IP address.
+ @param aHostname Name to be resolved
+ @param aResult IPAddress structure to store the returned IP address
+ @result 1 if aIPAddrString was successfully converted to an IP address,
+ else error code
+ */
+ int getHostByName(const char* aHostname, IPAddress& aResult);
+
+protected:
+ uint16_t BuildRequest(const char* aName);
+ uint16_t ProcessResponse(uint16_t aTimeout, IPAddress& aAddress);
+
+ IPAddress iDNSServer;
+ uint16_t iRequestId;
+ EthernetUDP iUdp;
+};
+
+#endif
diff --git a/libraries/Ethernet/Ethernet.cpp b/libraries/Ethernet/Ethernet.cpp new file mode 100644 index 0000000..c298f3d --- /dev/null +++ b/libraries/Ethernet/Ethernet.cpp @@ -0,0 +1,95 @@ +#include "w5100.h" +#include "Ethernet.h" +#include "Dhcp.h" + +// XXX: don't make assumptions about the value of MAX_SOCK_NUM. +uint8_t EthernetClass::_state[MAX_SOCK_NUM] = { + 0, 0, 0, 0 }; +uint16_t EthernetClass::_server_port[MAX_SOCK_NUM] = { + 0, 0, 0, 0 }; + +int EthernetClass::begin(uint8_t *mac_address) +{ + DhcpClass dhcp; + + // Initialise the basic info + W5100.init(); + W5100.setMACAddress(mac_address); + W5100.setIPAddress(IPAddress(0,0,0,0).raw_address()); + + // Now try to get our config info from a DHCP server + int ret = dhcp.beginWithDHCP(mac_address); + if(ret == 1) + { + // We've successfully found a DHCP server and got our configuration info, so set things + // accordingly + W5100.setIPAddress(dhcp.getLocalIp().raw_address()); + W5100.setGatewayIp(dhcp.getGatewayIp().raw_address()); + W5100.setSubnetMask(dhcp.getSubnetMask().raw_address()); + _dnsServerAddress = dhcp.getDnsServerIp(); + } + + return ret; +} + +void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip) +{ + // Assume the DNS server will be the machine on the same network as the local IP + // but with last octet being '1' + IPAddress dns_server = local_ip; + dns_server[3] = 1; + begin(mac_address, local_ip, dns_server); +} + +void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server) +{ + // Assume the gateway will be the machine on the same network as the local IP + // but with last octet being '1' + IPAddress gateway = local_ip; + gateway[3] = 1; + begin(mac_address, local_ip, dns_server, gateway); +} + +void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway) +{ + IPAddress subnet(255, 255, 255, 0); + begin(mac_address, local_ip, dns_server, gateway, subnet); +} + +void EthernetClass::begin(uint8_t *mac, IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet) +{ + W5100.init(); + W5100.setMACAddress(mac); + W5100.setIPAddress(local_ip._address); + W5100.setGatewayIp(gateway._address); + W5100.setSubnetMask(subnet._address); + _dnsServerAddress = dns_server; +} + +IPAddress EthernetClass::localIP() +{ + IPAddress ret; + W5100.getIPAddress(ret.raw_address()); + return ret; +} + +IPAddress EthernetClass::subnetMask() +{ + IPAddress ret; + W5100.getSubnetMask(ret.raw_address()); + return ret; +} + +IPAddress EthernetClass::gatewayIP() +{ + IPAddress ret; + W5100.getGatewayIp(ret.raw_address()); + return ret; +} + +IPAddress EthernetClass::dnsServerIP() +{ + return _dnsServerAddress; +} + +EthernetClass Ethernet; diff --git a/libraries/Ethernet/Ethernet.h b/libraries/Ethernet/Ethernet.h new file mode 100644 index 0000000..c916dda --- /dev/null +++ b/libraries/Ethernet/Ethernet.h @@ -0,0 +1,38 @@ +#ifndef ethernet_h +#define ethernet_h + +#include <inttypes.h> +//#include "w5100.h" +#include "IPAddress.h" +#include "EthernetClient.h" +#include "EthernetServer.h" + +#define MAX_SOCK_NUM 4 + +class EthernetClass { +private: + IPAddress _dnsServerAddress; +public: + static uint8_t _state[MAX_SOCK_NUM]; + static uint16_t _server_port[MAX_SOCK_NUM]; + // Initialise the Ethernet shield to use the provided MAC address and gain the rest of the + // configuration through DHCP. + // Returns 0 if the DHCP configuration failed, and 1 if it succeeded + int begin(uint8_t *mac_address); + void begin(uint8_t *mac_address, IPAddress local_ip); + void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server); + void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway); + void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet); + + IPAddress localIP(); + IPAddress subnetMask(); + IPAddress gatewayIP(); + IPAddress dnsServerIP(); + + friend class EthernetClient; + friend class EthernetServer; +}; + +extern EthernetClass Ethernet; + +#endif diff --git a/libraries/Ethernet/EthernetClient.cpp b/libraries/Ethernet/EthernetClient.cpp new file mode 100644 index 0000000..a77a62b --- /dev/null +++ b/libraries/Ethernet/EthernetClient.cpp @@ -0,0 +1,165 @@ +#include "w5100.h" +#include "socket.h" + +extern "C" { + #include "string.h" +} + +#include "Arduino.h" + +#include "Ethernet.h" +#include "EthernetClient.h" +#include "EthernetServer.h" +#include "Dns.h" + +uint16_t EthernetClient::_srcport = 1024; + +EthernetClient::EthernetClient() : _sock(MAX_SOCK_NUM) { +} + +EthernetClient::EthernetClient(uint8_t sock) : _sock(sock) { +} + +int EthernetClient::connect(const char* host, uint16_t port) { + // Look up the host first + int ret = 0; + DNSClient dns; + IPAddress remote_addr; + + dns.begin(Ethernet.dnsServerIP()); + ret = dns.getHostByName(host, remote_addr); + if (ret == 1) { + return connect(remote_addr, port); + } else { + return ret; + } +} + +int EthernetClient::connect(IPAddress ip, uint16_t port) { + if (_sock != MAX_SOCK_NUM) + return 0; + + for (int i = 0; i < MAX_SOCK_NUM; i++) { + uint8_t s = W5100.readSnSR(i); + if (s == SnSR::CLOSED || s == SnSR::FIN_WAIT) { + _sock = i; + break; + } + } + + if (_sock == MAX_SOCK_NUM) + return 0; + + _srcport++; + if (_srcport == 0) _srcport = 1024; + socket(_sock, SnMR::TCP, _srcport, 0); + + if (!::connect(_sock, rawIPAddress(ip), port)) { + _sock = MAX_SOCK_NUM; + return 0; + } + + while (status() != SnSR::ESTABLISHED) { + delay(1); + if (status() == SnSR::CLOSED) { + _sock = MAX_SOCK_NUM; + return 0; + } + } + + return 1; +} + +size_t EthernetClient::write(uint8_t b) { + return write(&b, 1); +} + +size_t EthernetClient::write(const uint8_t *buf, size_t size) { + if (_sock == MAX_SOCK_NUM) { + setWriteError(); + return 0; + } + if (!send(_sock, buf, size)) { + setWriteError(); + return 0; + } + return size; +} + +int EthernetClient::available() { + if (_sock != MAX_SOCK_NUM) + return W5100.getRXReceivedSize(_sock); + return 0; +} + +int EthernetClient::read() { + uint8_t b; + if ( recv(_sock, &b, 1) > 0 ) + { + // recv worked + return b; + } + else + { + // No data available + return -1; + } +} + +int EthernetClient::read(uint8_t *buf, size_t size) { + return recv(_sock, buf, size); +} + +int EthernetClient::peek() { + uint8_t b; + // Unlike recv, peek doesn't check to see if there's any data available, so we must + if (!available()) + return -1; + ::peek(_sock, &b); + return b; +} + +void EthernetClient::flush() { + while (available()) + read(); +} + +void EthernetClient::stop() { + if (_sock == MAX_SOCK_NUM) + return; + + // attempt to close the connection gracefully (send a FIN to other side) + disconnect(_sock); + unsigned long start = millis(); + + // wait a second for the connection to close + while (status() != SnSR::CLOSED && millis() - start < 1000) + delay(1); + + // if it hasn't closed, close it forcefully + if (status() != SnSR::CLOSED) + close(_sock); + + EthernetClass::_server_port[_sock] = 0; + _sock = MAX_SOCK_NUM; +} + +uint8_t EthernetClient::connected() { + if (_sock == MAX_SOCK_NUM) return 0; + + uint8_t s = status(); + return !(s == SnSR::LISTEN || s == SnSR::CLOSED || s == SnSR::FIN_WAIT || + (s == SnSR::CLOSE_WAIT && !available())); +} + +uint8_t EthernetClient::status() { + if (_sock == MAX_SOCK_NUM) return SnSR::CLOSED; + return W5100.readSnSR(_sock); +} + +// the next function allows us to use the client returned by +// EthernetServer::available() as the condition in an if-statement. + +EthernetClient::operator bool() { + return _sock != MAX_SOCK_NUM; +} diff --git a/libraries/Ethernet/EthernetClient.h b/libraries/Ethernet/EthernetClient.h new file mode 100644 index 0000000..44740fe --- /dev/null +++ b/libraries/Ethernet/EthernetClient.h @@ -0,0 +1,37 @@ +#ifndef ethernetclient_h +#define ethernetclient_h +#include "Arduino.h" +#include "Print.h" +#include "Client.h" +#include "IPAddress.h" + +class EthernetClient : public Client { + +public: + EthernetClient(); + EthernetClient(uint8_t sock); + + uint8_t status(); + virtual int connect(IPAddress ip, uint16_t port); + virtual int connect(const char *host, uint16_t port); + virtual size_t write(uint8_t); + virtual size_t write(const uint8_t *buf, size_t size); + virtual int available(); + virtual int read(); + virtual int read(uint8_t *buf, size_t size); + virtual int peek(); + virtual void flush(); + virtual void stop(); + virtual uint8_t connected(); + virtual operator bool(); + + friend class EthernetServer; + + using Print::write; + +private: + static uint16_t _srcport; + uint8_t _sock; +}; + +#endif diff --git a/libraries/Ethernet/EthernetServer.cpp b/libraries/Ethernet/EthernetServer.cpp new file mode 100644 index 0000000..0308b92 --- /dev/null +++ b/libraries/Ethernet/EthernetServer.cpp @@ -0,0 +1,91 @@ +#include "w5100.h" +#include "socket.h" +extern "C" { +#include "string.h" +} + +#include "Ethernet.h" +#include "EthernetClient.h" +#include "EthernetServer.h" + +EthernetServer::EthernetServer(uint16_t port) +{ + _port = port; +} + +void EthernetServer::begin() +{ + for (int sock = 0; sock < MAX_SOCK_NUM; sock++) { + EthernetClient client(sock); + if (client.status() == SnSR::CLOSED) { + socket(sock, SnMR::TCP, _port, 0); + listen(sock); + EthernetClass::_server_port[sock] = _port; + break; + } + } +} + +void EthernetServer::accept() +{ + int listening = 0; + + for (int sock = 0; sock < MAX_SOCK_NUM; sock++) { + EthernetClient client(sock); + + if (EthernetClass::_server_port[sock] == _port) { + if (client.status() == SnSR::LISTEN) { + listening = 1; + } + else if (client.status() == SnSR::CLOSE_WAIT && !client.available()) { + client.stop(); + } + } + } + + if (!listening) { + begin(); + } +} + +EthernetClient EthernetServer::available() +{ + accept(); + + for (int sock = 0; sock < MAX_SOCK_NUM; sock++) { + EthernetClient client(sock); + if (EthernetClass::_server_port[sock] == _port && + (client.status() == SnSR::ESTABLISHED || + client.status() == SnSR::CLOSE_WAIT)) { + if (client.available()) { + // XXX: don't always pick the lowest numbered socket. + return client; + } + } + } + + return EthernetClient(MAX_SOCK_NUM); +} + +size_t EthernetServer::write(uint8_t b) +{ + return write(&b, 1); +} + +size_t EthernetServer::write(const uint8_t *buffer, size_t size) +{ + size_t n = 0; + + accept(); + + for (int sock = 0; sock < MAX_SOCK_NUM; sock++) { + EthernetClient client(sock); + + if (EthernetClass::_server_port[sock] == _port && + client.status() == SnSR::ESTABLISHED) { + n += client.write(buffer, size); + } + } + + return n; +} diff --git a/libraries/Ethernet/EthernetServer.h b/libraries/Ethernet/EthernetServer.h new file mode 100644 index 0000000..86ccafe --- /dev/null +++ b/libraries/Ethernet/EthernetServer.h @@ -0,0 +1,22 @@ +#ifndef ethernetserver_h +#define ethernetserver_h + +#include "Server.h" + +class EthernetClient; + +class EthernetServer : +public Server { +private: + uint16_t _port; + void accept(); +public: + EthernetServer(uint16_t); + EthernetClient available(); + virtual void begin(); + virtual size_t write(uint8_t); + virtual size_t write(const uint8_t *buf, size_t size); + using Print::write; +}; + +#endif diff --git a/libraries/Ethernet/EthernetUdp.cpp b/libraries/Ethernet/EthernetUdp.cpp new file mode 100644 index 0000000..9c752fc --- /dev/null +++ b/libraries/Ethernet/EthernetUdp.cpp @@ -0,0 +1,183 @@ +/* + * Udp.cpp: Library to send/receive UDP packets with the Arduino ethernet shield. + * This version only offers minimal wrapping of socket.c/socket.h + * Drop Udp.h/.cpp into the Ethernet library directory at hardware/libraries/Ethernet/ + * + * MIT License: + * Copyright (c) 2008 Bjoern Hartmann + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * bjoern@cs.stanford.edu 12/30/2008 + */ + +#include "w5100.h" +#include "socket.h" +#include "Ethernet.h" +#include "Udp.h" +#include "Dns.h" + +/* Constructor */ +EthernetUDP::EthernetUDP() : _sock(MAX_SOCK_NUM) {} + +/* Start EthernetUDP socket, listening at local port PORT */ +uint8_t EthernetUDP::begin(uint16_t port) { + if (_sock != MAX_SOCK_NUM) + return 0; + + for (int i = 0; i < MAX_SOCK_NUM; i++) { + uint8_t s = W5100.readSnSR(i); + if (s == SnSR::CLOSED || s == SnSR::FIN_WAIT) { + _sock = i; + break; + } + } + + if (_sock == MAX_SOCK_NUM) + return 0; + + _port = port; + socket(_sock, SnMR::UDP, _port, 0); + + return 1; +} + +/* Is data available in rx buffer? Returns 0 if no, number of available bytes if yes. + * returned value includes 8 byte UDP header!*/ +int EthernetUDP::available() { + return W5100.getRXReceivedSize(_sock); +} + +/* Release any resources being used by this EthernetUDP instance */ +void EthernetUDP::stop() +{ + if (_sock == MAX_SOCK_NUM) + return; + + close(_sock); + + EthernetClass::_server_port[_sock] = 0; + _sock = MAX_SOCK_NUM; +} + +int EthernetUDP::beginPacket(const char *host, uint16_t port) +{ + // Look up the host first + int ret = 0; + DNSClient dns; + IPAddress remote_addr; + + dns.begin(Ethernet.dnsServerIP()); + ret = dns.getHostByName(host, remote_addr); + if (ret == 1) { + return beginPacket(remote_addr, port); + } else { + return ret; + } +} + +int EthernetUDP::beginPacket(IPAddress ip, uint16_t port) +{ + _offset = 0; + return startUDP(_sock, rawIPAddress(ip), port); +} + +int EthernetUDP::endPacket() +{ + return sendUDP(_sock); +} + +size_t EthernetUDP::write(uint8_t byte) +{ + return write(&byte, 1); +} + +size_t EthernetUDP::write(const uint8_t *buffer, size_t size) +{ + uint16_t bytes_written = bufferData(_sock, _offset, buffer, size); + _offset += bytes_written; + return bytes_written; +} + +int EthernetUDP::parsePacket() +{ + if (available() > 0) + { + //HACK - hand-parse the UDP packet using TCP recv method + uint8_t tmpBuf[8]; + int ret =0; + //read 8 header bytes and get IP and port from it + ret = recv(_sock,tmpBuf,8); + if (ret > 0) + { + _remoteIP = tmpBuf; + _remotePort = tmpBuf[4]; + _remotePort = (_remotePort << 8) + tmpBuf[5]; + // When we get here, any remaining bytes are the data + ret = available(); + } + return ret; + } + // There aren't any packets available + return 0; +} + +int EthernetUDP::read() +{ + uint8_t byte; + if (recv(_sock, &byte, 1) > 0) + { + // We read things without any problems + return byte; + } + // If we get here, there's no data available + return -1; +} + +int EthernetUDP::read(unsigned char* buffer, size_t len) +{ + /* In the readPacket that copes with truncating packets, the buffer was + filled with this code. Not sure why it loops round reading out a byte + at a time. + int i; + for(i=0;i<(int)bufLen;i++) { + recv(_sock,tmpBuf,1); + buf[i]=tmpBuf[0]; + } + */ + return recv(_sock, buffer, len); +} + +int EthernetUDP::peek() +{ + uint8_t b; + // Unlike recv, peek doesn't check to see if there's any data available, so we must + if (!available()) + return -1; + ::peek(_sock, &b); + return b; +} + +void EthernetUDP::flush() +{ + while (available()) + { + read(); + } +} + diff --git a/libraries/Ethernet/EthernetUdp.h b/libraries/Ethernet/EthernetUdp.h new file mode 100644 index 0000000..9a2b653 --- /dev/null +++ b/libraries/Ethernet/EthernetUdp.h @@ -0,0 +1,98 @@ +/* + * Udp.cpp: Library to send/receive UDP packets with the Arduino ethernet shield. + * This version only offers minimal wrapping of socket.c/socket.h + * Drop Udp.h/.cpp into the Ethernet library directory at hardware/libraries/Ethernet/ + * + * NOTE: UDP is fast, but has some important limitations (thanks to Warren Gray for mentioning these) + * 1) UDP does not guarantee the order in which assembled UDP packets are received. This + * might not happen often in practice, but in larger network topologies, a UDP + * packet can be received out of sequence. + * 2) UDP does not guard against lost packets - so packets *can* disappear without the sender being + * aware of it. Again, this may not be a concern in practice on small local networks. + * For more information, see http://www.cafeaulait.org/course/week12/35.html + * + * MIT License: + * Copyright (c) 2008 Bjoern Hartmann + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * bjoern@cs.stanford.edu 12/30/2008 + */ + +#ifndef ethernetudp_h +#define ethernetudp_h + +#include <Udp.h> + +#define UDP_TX_PACKET_MAX_SIZE 24 + +class EthernetUDP : public UDP { +private: + uint8_t _sock; // socket ID for Wiz5100 + uint16_t _port; // local port to listen on + IPAddress _remoteIP; // remote IP address for the incoming packet whilst it's being processed + uint16_t _remotePort; // remote port for the incoming packet whilst it's being processed + uint16_t _offset; // offset into the packet being sent + +public: + EthernetUDP(); // Constructor + virtual uint8_t begin(uint16_t); // initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use + virtual void stop(); // Finish with the UDP socket + + // Sending UDP packets + + // Start building up a packet to send to the remote host specific in ip and port + // Returns 1 if successful, 0 if there was a problem with the supplied IP address or port + virtual int beginPacket(IPAddress ip, uint16_t port); + // Start building up a packet to send to the remote host specific in host and port + // Returns 1 if successful, 0 if there was a problem resolving the hostname or port + virtual int beginPacket(const char *host, uint16_t port); + // Finish off this packet and send it + // Returns 1 if the packet was sent successfully, 0 if there was an error + virtual int endPacket(); + // Write a single byte into the packet + virtual size_t write(uint8_t); + // Write size bytes from buffer into the packet + virtual size_t write(const uint8_t *buffer, size_t size); + + using Print::write; + + // Start processing the next available incoming packet + // Returns the size of the packet in bytes, or 0 if no packets are available + virtual int parsePacket(); + // Number of bytes remaining in the current packet + virtual int available(); + // Read a single byte from the current packet + virtual int read(); + // Read up to len bytes from the current packet and place them into buffer + // Returns the number of bytes read, or 0 if none are available + virtual int read(unsigned char* buffer, size_t len); + // Read up to len characters from the current packet and place them into buffer + // Returns the number of characters read, or 0 if none are available + virtual int read(char* buffer, size_t len) { return read((unsigned char*)buffer, len); }; + // Return the next byte from the current packet without moving on to the next byte + virtual int peek(); + virtual void flush(); // Finish reading the current packet + + // Return the IP address of the host who sent the current incoming packet + virtual IPAddress remoteIP() { return _remoteIP; }; + // Return the port of the host who sent the current incoming packet + virtual uint16_t remotePort() { return _remotePort; }; +}; + +#endif diff --git a/libraries/Ethernet/examples/BarometricPressureWebServer/BarometricPressureWebServer.ino b/libraries/Ethernet/examples/BarometricPressureWebServer/BarometricPressureWebServer.ino new file mode 100644 index 0000000..bfbcb6d --- /dev/null +++ b/libraries/Ethernet/examples/BarometricPressureWebServer/BarometricPressureWebServer.ino @@ -0,0 +1,222 @@ +/* + SCP1000 Barometric Pressure Sensor Display + + Serves the output of a Barometric Pressure Sensor as a web page. + Uses the SPI library. For details on the sensor, see: + http://www.sparkfun.com/commerce/product_info.php?products_id=8161 + http://www.vti.fi/en/support/obsolete_products/pressure_sensors/ + + This sketch adapted from Nathan Seidle's SCP1000 example for PIC: + http://www.sparkfun.com/datasheets/Sensors/SCP1000-Testing.zip + + Circuit: + SCP1000 sensor attached to pins 6,7, and 11 - 13: + DRDY: pin 6 + CSB: pin 7 + MOSI: pin 11 + MISO: pin 12 + SCK: pin 13 + + created 31 July 2010 + by Tom Igoe + */ + +#include <Ethernet.h> +// the sensor communicates using SPI, so include the library: +#include <SPI.h> + + +// assign a MAC address for the ethernet controller. +// fill in your address here: +byte mac[] = { + 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED}; +// assign an IP address for the controller: +IPAddress ip(192,168,1,20); +IPAddress gateway(192,168,1,1); +IPAddress subnet(255, 255, 255, 0); + + +// Initialize the Ethernet server library +// with the IP address and port you want to use +// (port 80 is default for HTTP): +EthernetServer server(80); + + +//Sensor's memory register addresses: +const int PRESSURE = 0x1F; //3 most significant bits of pressure +const int PRESSURE_LSB = 0x20; //16 least significant bits of pressure +const int TEMPERATURE = 0x21; //16 bit temperature reading + +// pins used for the connection with the sensor +// the others you need are controlled by the SPI library): +const int dataReadyPin = 6; +const int chipSelectPin = 7; + +float temperature = 0.0; +long pressure = 0; +long lastReadingTime = 0; + +void setup() { + // start the SPI library: + SPI.begin(); + + // start the Ethernet connection and the server: + Ethernet.begin(mac, ip); + server.begin(); + + // initalize the data ready and chip select pins: + pinMode(dataReadyPin, INPUT); + pinMode(chipSelectPin, OUTPUT); + + Serial.begin(9600); + + //Configure SCP1000 for low noise configuration: + writeRegister(0x02, 0x2D); + writeRegister(0x01, 0x03); + writeRegister(0x03, 0x02); + + // give the sensor and Ethernet shield time to set up: + delay(1000); + + //Set the sensor to high resolution mode tp start readings: + writeRegister(0x03, 0x0A); + +} + +void loop() { + // check for a reading no more than once a second. + if (millis() - lastReadingTime > 1000){ + // if there's a reading ready, read it: + // don't do anything until the data ready pin is high: + if (digitalRead(dataReadyPin) == HIGH) { + getData(); + // timestamp the last time you got a reading: + lastReadingTime = millis(); + } + } + + // listen for incoming Ethernet connections: + listenForEthernetClients(); +} + + +void getData() { + Serial.println("Getting reading"); + //Read the temperature data + int tempData = readRegister(0x21, 2); + + // convert the temperature to celsius and display it: + temperature = (float)tempData / 20.0; + + //Read the pressure data highest 3 bits: + byte pressureDataHigh = readRegister(0x1F, 1); + pressureDataHigh &= 0b00000111; //you only needs bits 2 to 0 + + //Read the pressure data lower 16 bits: + unsigned int pressureDataLow = readRegister(0x20, 2); + //combine the two parts into one 19-bit number: + pressure = ((pressureDataHigh << 16) | pressureDataLow)/4; + + Serial.print("Temperature: "); + Serial.print(temperature); + Serial.println(" degrees C"); + Serial.print("Pressure: " + String(pressure)); + Serial.println(" Pa"); +} + +void listenForEthernetClients() { + // listen for incoming clients + EthernetClient client = server.available(); + if (client) { + Serial.println("Got a client"); + // an http request ends with a blank line + boolean currentLineIsBlank = true; + while (client.connected()) { + if (client.available()) { + char c = client.read(); + // if you've gotten to the end of the line (received a newline + // character) and the line is blank, the http request has ended, + // so you can send a reply + if (c == '\n' && currentLineIsBlank) { + // send a standard http response header + client.println("HTTP/1.1 200 OK"); + client.println("Content-Type: text/html"); + client.println(); + // print the current readings, in HTML format: + client.print("Temperature: "); + client.print(temperature); + client.print(" degrees C"); + client.println("<br />"); + client.print("Pressure: " + String(pressure)); + client.print(" Pa"); + client.println("<br />"); + break; + } + if (c == '\n') { + // you're starting a new line + currentLineIsBlank = true; + } + else if (c != '\r') { + // you've gotten a character on the current line + currentLineIsBlank = false; + } + } + } + // give the web browser time to receive the data + delay(1); + // close the connection: + client.stop(); + } +} + + +//Send a write command to SCP1000 +void writeRegister(byte registerName, byte registerValue) { + // SCP1000 expects the register name in the upper 6 bits + // of the byte: + registerName <<= 2; + // command (read or write) goes in the lower two bits: + registerName |= 0b00000010; //Write command + + // take the chip select low to select the device: + digitalWrite(chipSelectPin, LOW); + + SPI.transfer(registerName); //Send register location + SPI.transfer(registerValue); //Send value to record into register + + // take the chip select high to de-select: + digitalWrite(chipSelectPin, HIGH); +} + + +//Read register from the SCP1000: +unsigned int readRegister(byte registerName, int numBytes) { + byte inByte = 0; // incoming from the SPI read + unsigned int result = 0; // result to return + + // SCP1000 expects the register name in the upper 6 bits + // of the byte: + registerName <<= 2; + // command (read or write) goes in the lower two bits: + registerName &= 0b11111100; //Read command + + // take the chip select low to select the device: + digitalWrite(chipSelectPin, LOW); + // send the device the register you want to read: + int command = SPI.transfer(registerName); + // send a value of 0 to read the first byte returned: + inByte = SPI.transfer(0x00); + + result = inByte; + // if there's more than one byte returned, + // shift the first byte then get the second byte: + if (numBytes > 1){ + result = inByte << 8; + inByte = SPI.transfer(0x00); + result = result |inByte; + } + // take the chip select high to de-select: + digitalWrite(chipSelectPin, HIGH); + // return the result: + return(result); +} diff --git a/libraries/Ethernet/examples/ChatServer/ChatServer.ino b/libraries/Ethernet/examples/ChatServer/ChatServer.ino new file mode 100644 index 0000000..9f819fd --- /dev/null +++ b/libraries/Ethernet/examples/ChatServer/ChatServer.ino @@ -0,0 +1,63 @@ +/* + Chat Server + + A simple server that distributes any incoming messages to all + connected clients. To use telnet to your device's IP address and type. + You can see the client's input in the serial monitor as well. + Using an Arduino Wiznet Ethernet shield. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + * Analog inputs attached to pins A0 through A5 (optional) + + created 18 Dec 2009 + by David A. Mellis + modified 10 August 2010 + by Tom Igoe + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// Enter a MAC address and IP address for your controller below. +// The IP address will be dependent on your local network. +// gateway and subnet are optional: +byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; +IPAddress ip(192,168,1, 177); +IPAddress gateway(192,168,1, 1); +IPAddress subnet(255, 255, 0, 0); + +// telnet defaults to port 23 +EthernetServer server(23); +boolean gotAMessage = false; // whether or not you got a message from the client yet + +void setup() { + // initialize the ethernet device + Ethernet.begin(mac, ip, gateway, subnet); + // start listening for clients + server.begin(); + // open the serial port + Serial.begin(9600); +} + +void loop() { + // wait for a new client: + EthernetClient client = server.available(); + + // when the client sends the first byte, say hello: + if (client) { + if (!gotAMessage) { + Serial.println("We have a new client"); + client.println("Hello, client!"); + gotAMessage = true; + } + + // read the bytes incoming from the client: + char thisChar = client.read(); + // echo the bytes back to the client: + server.write(thisChar); + // echo the bytes to the server as well: + Serial.print(thisChar); + } +} diff --git a/libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino b/libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino new file mode 100644 index 0000000..630dd17 --- /dev/null +++ b/libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino @@ -0,0 +1,53 @@ +/* + DHCP-based IP printer + + This sketch uses the DHCP extensions to the Ethernet library + to get an IP address via DHCP and print the address obtained. + using an Arduino Wiznet Ethernet shield. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 12 April 2011 + by Tom Igoe + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// Enter a MAC address for your controller below. +// Newer Ethernet shields have a MAC address printed on a sticker on the shield +byte mac[] = { + 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 }; + +// Initialize the Ethernet client library +// with the IP address and port of the server +// that you want to connect to (port 80 is default for HTTP): +EthernetClient client; + +void setup() { + // start the serial library: + Serial.begin(9600); + // start the Ethernet connection: + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // no point in carrying on, so do nothing forevermore: + for(;;) + ; + } + // print your local IP address: + Serial.print("My IP address: "); + for (byte thisByte = 0; thisByte < 4; thisByte++) { + // print the value of each byte of the IP address: + Serial.print(Ethernet.localIP()[thisByte], DEC); + Serial.print("."); + } + Serial.println(); +} + +void loop() { + +} + + diff --git a/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino b/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino new file mode 100644 index 0000000..5082054 --- /dev/null +++ b/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino @@ -0,0 +1,80 @@ +/* + DHCP Chat Server + + A simple server that distributes any incoming messages to all + connected clients. To use telnet to your device's IP address and type. + You can see the client's input in the serial monitor as well. + Using an Arduino Wiznet Ethernet shield. + + THis version attempts to get an IP address using DHCP + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 21 May 2011 + by Tom Igoe + Based on ChatServer example by David A. Mellis + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// Enter a MAC address and IP address for your controller below. +// The IP address will be dependent on your local network. +// gateway and subnet are optional: +byte mac[] = { + 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 }; +IPAddress ip(192,168,1, 177); +IPAddress gateway(192,168,1, 1); +IPAddress subnet(255, 255, 0, 0); + +// telnet defaults to port 23 +EthernetServer server(23); +boolean gotAMessage = false; // whether or not you got a message from the client yet + +void setup() { + // open the serial port + Serial.begin(9600); + // start the Ethernet connection: + Serial.println("Trying to get an IP address using DHCP"); + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // initialize the ethernet device not using DHCP: + Ethernet.begin(mac, ip, gateway, subnet); + } + // print your local IP address: + Serial.print("My IP address: "); + ip = Ethernet.localIP(); + for (byte thisByte = 0; thisByte < 4; thisByte++) { + // print the value of each byte of the IP address: + Serial.print(ip[thisByte], DEC); + Serial.print("."); + } + Serial.println(); + // start listening for clients + server.begin(); + +} + +void loop() { + // wait for a new client: + EthernetClient client = server.available(); + + // when the client sends the first byte, say hello: + if (client) { + if (!gotAMessage) { + Serial.println("We have a new client"); + client.println("Hello, client!"); + gotAMessage = true; + } + + // read the bytes incoming from the client: + char thisChar = client.read(); + // echo the bytes back to the client: + server.write(thisChar); + // echo the bytes to the server as well: + Serial.print(thisChar); + } +} + diff --git a/libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino b/libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino new file mode 100644 index 0000000..5c7a53a --- /dev/null +++ b/libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino @@ -0,0 +1,76 @@ +/* + DNS and DHCP-based Web client + + This sketch connects to a website (http://www.google.com) + using an Arduino Wiznet Ethernet shield. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 18 Dec 2009 + by David A. Mellis + modified 12 April 2011 + by Tom Igoe, based on work by Adrian McEwen + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// Enter a MAC address for your controller below. +// Newer Ethernet shields have a MAC address printed on a sticker on the shield +byte mac[] = { 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 }; +char serverName[] = "www.google.com"; + +// Initialize the Ethernet client library +// with the IP address and port of the server +// that you want to connect to (port 80 is default for HTTP): +EthernetClient client; + +void setup() { + // start the serial library: + Serial.begin(9600); + // start the Ethernet connection: + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // no point in carrying on, so do nothing forevermore: + while(true); + } + // give the Ethernet shield a second to initialize: + delay(1000); + Serial.println("connecting..."); + + // if you get a connection, report back via serial: + + if (client.connect(serverName, 80)) { + Serial.println("connected"); + // Make a HTTP request: + client.println("GET /search?q=arduino HTTP/1.0"); + client.println(); + } + else { + // kf you didn't get a connection to the server: + Serial.println("connection failed"); + } +} + +void loop() +{ + // if there are incoming bytes available + // from the server, read them and print them: + if (client.available()) { + char c = client.read(); + Serial.print(c); + } + + // if the server's disconnected, stop the client: + if (!client.connected()) { + Serial.println(); + Serial.println("disconnecting."); + client.stop(); + + // do nothing forevermore: + while(true); + } +} + diff --git a/libraries/Ethernet/examples/PachubeClient/PachubeClient.ino b/libraries/Ethernet/examples/PachubeClient/PachubeClient.ino new file mode 100644 index 0000000..a169443 --- /dev/null +++ b/libraries/Ethernet/examples/PachubeClient/PachubeClient.ino @@ -0,0 +1,144 @@ +/* + Pachube sensor client + + This sketch connects an analog sensor to Pachube (http://www.pachube.com) + using a Wiznet Ethernet shield. You can use the Arduino Ethernet shield, or + the Adafruit Ethernet shield, either one will work, as long as it's got + a Wiznet Ethernet module on board. + + Circuit: + * Analog sensor attached to analog in 0 + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 15 March 2010 + updated 26 Oct 2011 + by Tom Igoe + + http://www.tigoe.net/pcomp/code/category/arduinowiring/873 + This code is in the public domain. + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// assign a MAC address for the ethernet controller. +// Newer Ethernet shields have a MAC address printed on a sticker on the shield +// fill in your address here: +byte mac[] = { + 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED}; + +// fill in an available IP address on your network here, +// for manual configuration: +IPAddress ip(10,0,1,20); +// initialize the library instance: +EthernetClient client; + +long lastConnectionTime = 0; // last time you connected to the server, in milliseconds +boolean lastConnected = false; // state of the connection last time through the main loop +const int postingInterval = 10000; //delay between updates to Pachube.com + +void setup() { + // start serial port: + Serial.begin(9600); + // start the Ethernet connection: + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // no point in carrying on, so do nothing forevermore: + for(;;) + ; + } + // give the ethernet module time to boot up: + delay(1000); + // start the Ethernet connection: + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // Configure manually: + Ethernet.begin(mac, ip); + } +} + +void loop() { + // read the analog sensor: + int sensorReading = analogRead(A0); + + // if there's incoming data from the net connection. + // send it out the serial port. This is for debugging + // purposes only: + if (client.available()) { + char c = client.read(); + Serial.print(c); + } + + // if there's no net connection, but there was one last time + // through the loop, then stop the client: + if (!client.connected() && lastConnected) { + Serial.println(); + Serial.println("disconnecting."); + client.stop(); + } + + // if you're not connected, and ten seconds have passed since + // your last connection, then connect again and send data: + if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) { + sendData(sensorReading); + } + // store the state of the connection for next time through + // the loop: + lastConnected = client.connected(); +} + +// this method makes a HTTP connection to the server: +void sendData(int thisData) { + // if there's a successful connection: + if (client.connect("www.pachube.com", 80)) { + Serial.println("connecting..."); + // send the HTTP PUT request. + // fill in your feed address here: + client.print("PUT /api/YOUR_FEED_HERE.csv HTTP/1.1\n"); + client.print("Host: www.pachube.com\n"); + // fill in your Pachube API key here: + client.print("X-PachubeApiKey: YOUR_KEY_HERE\n"); + client.print("Content-Length: "); + + // calculate the length of the sensor reading in bytes: + int thisLength = getLength(thisData); + client.println(thisLength, DEC); + + // last pieces of the HTTP PUT request: + client.print("Content-Type: text/csv\n"); + client.println("Connection: close\n"); + + // here's the actual content of the PUT request: + client.println(thisData, DEC); + + // note the time that the connection was made: + lastConnectionTime = millis(); + } + else { + // if you couldn't make a connection: + Serial.println("connection failed"); + } +} + + +// This method calculates the number of digits in the +// sensor reading. Since each digit of the ASCII decimal +// representation is a byte, the number of digits equals +// the number of bytes: + +int getLength(int someValue) { + // there's at least one byte: + int digits = 1; + // continually divide the value by ten, + // adding one to the digit count for each + // time you divide, until you're at 0: + int dividend = someValue /10; + while (dividend > 0) { + dividend = dividend /10; + digits++; + } + // return the number of digits: + return digits; +} + diff --git a/libraries/Ethernet/examples/PachubeClientString/PachubeClientString.ino b/libraries/Ethernet/examples/PachubeClientString/PachubeClientString.ino new file mode 100644 index 0000000..4a03100 --- /dev/null +++ b/libraries/Ethernet/examples/PachubeClientString/PachubeClientString.ino @@ -0,0 +1,121 @@ +/* + Pachube sensor client with Strings + + This sketch connects an analog sensor to Pachube (http://www.pachube.com) + using a Wiznet Ethernet shield. You can use the Arduino Ethernet shield, or + the Adafruit Ethernet shield, either one will work, as long as it's got + a Wiznet Ethernet module on board. + + This example uses the String library, which is part of the Arduino core from + version 0019. + + Circuit: + * Analog sensor attached to analog in 0 + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 15 March 2010 + updated 26 Oct 2011 + by Tom Igoe + + This code is in the public domain. + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// assign a MAC address for the ethernet controller. +// fill in your address here: +byte mac[] = { + 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED}; +// fill in an available IP address on your network here, +// for manual configuration: +IPAddress ip(10,0,1,20); + +// initialize the library instance: +EthernetClient client; + +long lastConnectionTime = 0; // last time you connected to the server, in milliseconds +boolean lastConnected = false; // state of the connection last time through the main loop +const int postingInterval = 10000; //delay between updates to Pachube.com + +void setup() { + // start serial port: + Serial.begin(9600); + // give the ethernet module time to boot up: + delay(1000); + // start the Ethernet connection: + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // Configure manually: + Ethernet.begin(mac, ip); + } +} + +void loop() { + // read the analog sensor: + int sensorReading = analogRead(A0); + // convert the data to a String to send it: + String dataString = String(sensorReading); + + // you can append multiple readings to this String if your + // pachube feed is set up to handle multiple values: + int otherSensorReading = analogRead(A1); + dataString += ","; + dataString += String(otherSensorReading); + + // if there's incoming data from the net connection. + // send it out the serial port. This is for debugging + // purposes only: + if (client.available()) { + char c = client.read(); + Serial.print(c); + } + + // if there's no net connection, but there was one last time + // through the loop, then stop the client: + if (!client.connected() && lastConnected) { + Serial.println(); + Serial.println("disconnecting."); + client.stop(); + } + + // if you're not connected, and ten seconds have passed since + // your last connection, then connect again and send data: + if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) { + sendData(dataString); + } + // store the state of the connection for next time through + // the loop: + lastConnected = client.connected(); +} + +// this method makes a HTTP connection to the server: +void sendData(String thisData) { + // if there's a successful connection: + if (client.connect("www.pachube.com", 80)) { + Serial.println("connecting..."); + // send the HTTP PUT request. + // fill in your feed address here: + client.print("PUT /api/YOUR_FEED_HERE.csv HTTP/1.1\n"); + client.print("Host: www.pachube.com\n"); + // fill in your Pachube API key here: + client.print("X-PachubeApiKey: YOUR_KEY_HERE\n"); + client.print("Content-Length: "); + client.println(thisData.length(), DEC); + + // last pieces of the HTTP PUT request: + client.print("Content-Type: text/csv\n"); + client.println("Connection: close\n"); + + // here's the actual content of the PUT request: + client.println(thisData); + + // note the time that the connection was made: + lastConnectionTime = millis(); + } + else { + // if you couldn't make a connection: + Serial.println("connection failed"); + } +} diff --git a/libraries/Ethernet/examples/TelnetClient/TelnetClient.ino b/libraries/Ethernet/examples/TelnetClient/TelnetClient.ino new file mode 100644 index 0000000..5cf1ad8 --- /dev/null +++ b/libraries/Ethernet/examples/TelnetClient/TelnetClient.ino @@ -0,0 +1,87 @@ +/* + Telnet client + + This sketch connects to a a telnet server (http://www.google.com) + using an Arduino Wiznet Ethernet shield. You'll need a telnet server + to test this with. + Processing's ChatServer example (part of the network library) works well, + running on port 10002. It can be found as part of the examples + in the Processing application, available at + http://processing.org/ + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 14 Sep 2010 + by Tom Igoe + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// Enter a MAC address and IP address for your controller below. +// The IP address will be dependent on your local network: +byte mac[] = { + 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; +IPAddress ip(192,168,1,177); + +// Enter the IP address of the server you're connecting to: +IPAddress server(1,1,1,1); + +// Initialize the Ethernet client library +// with the IP address and port of the server +// that you want to connect to (port 23 is default for telnet; +// if you're using Processing's ChatServer, use port 10002): +EthernetClient client; + +void setup() { + // start the Ethernet connection: + Ethernet.begin(mac, ip); + // start the serial library: + Serial.begin(9600); + // give the Ethernet shield a second to initialize: + delay(1000); + Serial.println("connecting..."); + + // if you get a connection, report back via serial: + if (client.connect(server, 10002)) { + Serial.println("connected"); + } + else { + // if you didn't get a connection to the server: + Serial.println("connection failed"); + } +} + +void loop() +{ + // if there are incoming bytes available + // from the server, read them and print them: + if (client.available()) { + char c = client.read(); + Serial.print(c); + } + + // as long as there are bytes in the serial queue, + // read them and send them out the socket if it's open: + while (Serial.available() > 0) { + char inChar = Serial.read(); + if (client.connected()) { + client.print(inChar); + } + } + + // if the server's disconnected, stop the client: + if (!client.connected()) { + Serial.println(); + Serial.println("disconnecting."); + client.stop(); + // do nothing: + while(true); + } +} + + + + diff --git a/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino b/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino new file mode 100644 index 0000000..f113e17 --- /dev/null +++ b/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino @@ -0,0 +1,124 @@ +/* + Twitter Client with Strings + + This sketch connects to Twitter using an Ethernet shield. It parses the XML + returned, and looks for <text>this is a tweet</text> + + You can use the Arduino Ethernet shield, or the Adafruit Ethernet shield, + either one will work, as long as it's got a Wiznet Ethernet module on board. + + This example uses the DHCP routines in the Ethernet library which is part of the + Arduino core from version 1.0 beta 1 + + This example uses the String library, which is part of the Arduino core from + version 0019. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 21 May 2011 + by Tom Igoe + + This code is in the public domain. + + */ +#include <SPI.h> +#include <Ethernet.h> + + +// Enter a MAC address and IP address for your controller below. +// The IP address will be dependent on your local network: +byte mac[] = { + 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x01 }; +IPAddress ip(192,168,1,20); + +// initialize the library instance: +EthernetClient client; + +const int requestInterval = 60000; // delay between requests + +char serverName[] = "api.twitter.com"; // twitter URL + +boolean requested; // whether you've made a request since connecting +long lastAttemptTime = 0; // last time you connected to the server, in milliseconds + +String currentLine = ""; // string to hold the text from server +String tweet = ""; // string to hold the tweet +boolean readingTweet = false; // if you're currently reading the tweet + +void setup() { + // reserve space for the strings: + currentLine.reserve(256); + tweet.reserve(150); + +// initialize serial: + Serial.begin(9600); + // attempt a DHCP connection: + if (!Ethernet.begin(mac)) { + // if DHCP fails, start with a hard-coded address: + Ethernet.begin(mac, ip); + } + // connect to Twitter: + connectToServer(); +} + + + +void loop() +{ + if (client.connected()) { + if (client.available()) { + // read incoming bytes: + char inChar = client.read(); + + // add incoming byte to end of line: + currentLine += inChar; + + // if you get a newline, clear the line: + if (inChar == '\n') { + currentLine = ""; + } + // if the current line ends with <text>, it will + // be followed by the tweet: + if ( currentLine.endsWith("<text>")) { + // tweet is beginning. Clear the tweet string: + readingTweet = true; + tweet = ""; + } + // if you're currently reading the bytes of a tweet, + // add them to the tweet String: + if (readingTweet) { + if (inChar != '<') { + tweet += inChar; + } + else { + // if you got a "<" character, + // you've reached the end of the tweet: + readingTweet = false; + Serial.println(tweet); + // close the connection to the server: + client.stop(); + } + } + } + } + else if (millis() - lastAttemptTime > requestInterval) { + // if you're not connected, and two minutes have passed since + // your last connection, then attempt to connect again: + connectToServer(); + } +} + +void connectToServer() { + // attempt to connect, and wait a millisecond: + Serial.println("connecting to server..."); + if (client.connect(serverName, 80)) { + Serial.println("making HTTP request..."); + // make HTTP GET request to twitter: + client.println("GET /1/statuses/user_timeline.xml?screen_name=arduino&count=1 HTTP/1.1"); + client.println("HOST: api.twitter.com"); + client.println(); + } + // note the time of this connect attempt: + lastAttemptTime = millis(); +} diff --git a/libraries/Ethernet/examples/UDPSendReceiveString/UDPSendReceiveString.ino b/libraries/Ethernet/examples/UDPSendReceiveString/UDPSendReceiveString.ino new file mode 100644 index 0000000..4d4045c --- /dev/null +++ b/libraries/Ethernet/examples/UDPSendReceiveString/UDPSendReceiveString.ino @@ -0,0 +1,118 @@ +/* + UDPSendReceive.pde: + This sketch receives UDP message strings, prints them to the serial port + and sends an "acknowledge" string back to the sender + + A Processing sketch is included at the end of file that can be used to send + and received messages for testing with a computer. + + created 21 Aug 2010 + by Michael Margolis + + This code is in the public domain. + */ + + +#include <SPI.h> // needed for Arduino versions later than 0018 +#include <Ethernet.h> +#include <EthernetUdp.h> // UDP library from: bjoern@cs.stanford.edu 12/30/2008 + + +// Enter a MAC address and IP address for your controller below. +// The IP address will be dependent on your local network: +byte mac[] = { + 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; +IPAddress ip(192, 168, 1, 177); + +unsigned int localPort = 8888; // local port to listen on + +// buffers for receiving and sending data +char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet, +char ReplyBuffer[] = "acknowledged"; // a string to send back + +// An EthernetUDP instance to let us send and receive packets over UDP +EthernetUDP Udp; + +void setup() { + // start the Ethernet and UDP: + Ethernet.begin(mac,ip); + Udp.begin(localPort); + + Serial.begin(9600); +} + +void loop() { + // if there's data available, read a packet + int packetSize = Udp.parsePacket(); + if(packetSize) + { + Serial.print("Received packet of size "); + Serial.println(packetSize); + Serial.print("From "); + IPAddress remote = Udp.remoteIP(); + for (int i =0; i < 4; i++) + { + Serial.print(remote[i], DEC); + if (i < 3) + { + Serial.print("."); + } + } + Serial.print(", port "); + Serial.println(Udp.remotePort()); + + // read the packet into packetBufffer + Udp.read(packetBuffer,UDP_TX_PACKET_MAX_SIZE); + Serial.println("Contents:"); + Serial.println(packetBuffer); + + // send a reply, to the IP address and port that sent us the packet we received + Udp.beginPacket(Udp.remoteIP(), Udp.remotePort()); + Udp.write(ReplyBuffer); + Udp.endPacket(); + } + delay(10); +} + + +/* + Processing sketch to run with this example + ===================================================== + + // Processing UDP example to send and receive string data from Arduino + // press any key to send the "Hello Arduino" message + + + import hypermedia.net.*; + + UDP udp; // define the UDP object + + + void setup() { + udp = new UDP( this, 6000 ); // create a new datagram connection on port 6000 + //udp.log( true ); // <-- printout the connection activity + udp.listen( true ); // and wait for incoming message + } + + void draw() + { + } + + void keyPressed() { + String ip = "192.168.1.177"; // the remote IP address + int port = 8888; // the destination port + + udp.send("Hello World", ip, port ); // the message to send + + } + + void receive( byte[] data ) { // <-- default handler + //void receive( byte[] data, String ip, int port ) { // <-- extended handler + + for(int i=0; i < data.length; i++) + print(char(data[i])); + println(); + } + */ + + diff --git a/libraries/Ethernet/examples/UdpNtpClient/UdpNtpClient.ino b/libraries/Ethernet/examples/UdpNtpClient/UdpNtpClient.ino new file mode 100644 index 0000000..b4e24b8 --- /dev/null +++ b/libraries/Ethernet/examples/UdpNtpClient/UdpNtpClient.ino @@ -0,0 +1,136 @@ +/* + + Udp NTP Client + + Get the time from a Network Time Protocol (NTP) time server + Demonstrates use of UDP sendPacket and ReceivePacket + For more on NTP time servers and the messages needed to communicate with them, + see http://en.wikipedia.org/wiki/Network_Time_Protocol + + created 4 Sep 2010 + by Michael Margolis + modified 17 Sep 2010 + by Tom Igoe + + This code is in the public domain. + + */ + +#include <SPI.h> +#include <Ethernet.h> +#include <EthernetUdp.h> + +// Enter a MAC address for your controller below. +// Newer Ethernet shields have a MAC address printed on a sticker on the shield +byte mac[] = { + 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; + +unsigned int localPort = 8888; // local port to listen for UDP packets + +IPAddress timeServer(192, 43, 244, 18); // time.nist.gov NTP server + +const int NTP_PACKET_SIZE= 48; // NTP time stamp is in the first 48 bytes of the message + +byte packetBuffer[ NTP_PACKET_SIZE]; //buffer to hold incoming and outgoing packets + +// A UDP instance to let us send and receive packets over UDP +EthernetUDP Udp; + +void setup() +{ + Serial.begin(9600); + + // start Ethernet and UDP + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // no point in carrying on, so do nothing forevermore: + for(;;) + ; + } + Udp.begin(localPort); +} + +void loop() +{ + sendNTPpacket(timeServer); // send an NTP packet to a time server + + // wait to see if a reply is available + delay(1000); + if ( Udp.parsePacket() ) { + // We've received a packet, read the data from it + Udp.read(packetBuffer,NTP_PACKET_SIZE); // read the packet into the buffer + + //the timestamp starts at byte 40 of the received packet and is four bytes, + // or two words, long. First, esxtract the two words: + + unsigned long highWord = word(packetBuffer[40], packetBuffer[41]); + unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]); + // combine the four bytes (two words) into a long integer + // this is NTP time (seconds since Jan 1 1900): + unsigned long secsSince1900 = highWord << 16 | lowWord; + Serial.print("Seconds since Jan 1 1900 = " ); + Serial.println(secsSince1900); + + // now convert NTP time into everyday time: + Serial.print("Unix time = "); + // Unix time starts on Jan 1 1970. In seconds, that's 2208988800: + const unsigned long seventyYears = 2208988800UL; + // subtract seventy years: + unsigned long epoch = secsSince1900 - seventyYears; + // print Unix time: + Serial.println(epoch); + + + // print the hour, minute and second: + Serial.print("The UTC time is "); // UTC is the time at Greenwich Meridian (GMT) + Serial.print((epoch % 86400L) / 3600); // print the hour (86400 equals secs per day) + Serial.print(':'); + if ( ((epoch % 3600) / 60) < 10 ) { + // In the first 10 minutes of each hour, we'll want a leading '0' + Serial.print('0'); + } + Serial.print((epoch % 3600) / 60); // print the minute (3600 equals secs per minute) + Serial.print(':'); + if ( (epoch % 60) < 10 ) { + // In the first 10 seconds of each minute, we'll want a leading '0' + Serial.print('0'); + } + Serial.println(epoch %60); // print the second + } + // wait ten seconds before asking for the time again + delay(10000); +} + +// send an NTP request to the time server at the given address +unsigned long sendNTPpacket(IPAddress& address) +{ + // set all bytes in the buffer to 0 + memset(packetBuffer, 0, NTP_PACKET_SIZE); + // Initialize values needed to form NTP request + // (see URL above for details on the packets) + packetBuffer[0] = 0b11100011; // LI, Version, Mode + packetBuffer[1] = 0; // Stratum, or type of clock + packetBuffer[2] = 6; // Polling Interval + packetBuffer[3] = 0xEC; // Peer Clock Precision + // 8 bytes of zero for Root Delay & Root Dispersion + packetBuffer[12] = 49; + packetBuffer[13] = 0x4E; + packetBuffer[14] = 49; + packetBuffer[15] = 52; + + // all NTP fields have been given values, now + // you can send a packet requesting a timestamp: + Udp.beginPacket(address, 123); //NTP requests are to port 123 + Udp.write(packetBuffer,NTP_PACKET_SIZE); + Udp.endPacket(); +} + + + + + + + + + + diff --git a/libraries/Ethernet/examples/WebClient/WebClient.ino b/libraries/Ethernet/examples/WebClient/WebClient.ino new file mode 100644 index 0000000..1806854 --- /dev/null +++ b/libraries/Ethernet/examples/WebClient/WebClient.ino @@ -0,0 +1,75 @@ +/* + Web client + + This sketch connects to a website (http://www.google.com) + using an Arduino Wiznet Ethernet shield. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 18 Dec 2009 + by David A. Mellis + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// Enter a MAC address for your controller below. +// Newer Ethernet shields have a MAC address printed on a sticker on the shield +byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; +IPAddress server(173,194,33,104); // Google + +// Initialize the Ethernet client library +// with the IP address and port of the server +// that you want to connect to (port 80 is default for HTTP): +EthernetClient client; + +void setup() { + // start the serial library: + Serial.begin(9600); + // start the Ethernet connection: + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // no point in carrying on, so do nothing forevermore: + for(;;) + ; + } + // give the Ethernet shield a second to initialize: + delay(1000); + Serial.println("connecting..."); + + // if you get a connection, report back via serial: + if (client.connect(server, 80)) { + Serial.println("connected"); + // Make a HTTP request: + client.println("GET /search?q=arduino HTTP/1.0"); + client.println(); + } + else { + // kf you didn't get a connection to the server: + Serial.println("connection failed"); + } +} + +void loop() +{ + // if there are incoming bytes available + // from the server, read them and print them: + if (client.available()) { + char c = client.read(); + Serial.print(c); + } + + // if the server's disconnected, stop the client: + if (!client.connected()) { + Serial.println(); + Serial.println("disconnecting."); + client.stop(); + + // do nothing forevermore: + for(;;) + ; + } +} + diff --git a/libraries/Ethernet/examples/WebServer/WebServer.ino b/libraries/Ethernet/examples/WebServer/WebServer.ino new file mode 100644 index 0000000..6837f83 --- /dev/null +++ b/libraries/Ethernet/examples/WebServer/WebServer.ino @@ -0,0 +1,82 @@ +/* + Web Server + + A simple web server that shows the value of the analog input pins. + using an Arduino Wiznet Ethernet shield. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + * Analog inputs attached to pins A0 through A5 (optional) + + created 18 Dec 2009 + by David A. Mellis + modified 4 Sep 2010 + by Tom Igoe + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// Enter a MAC address and IP address for your controller below. +// The IP address will be dependent on your local network: +byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; +IPAddress ip(192,168,1, 177); + +// Initialize the Ethernet server library +// with the IP address and port you want to use +// (port 80 is default for HTTP): +EthernetServer server(80); + +void setup() +{ + // start the Ethernet connection and the server: + Ethernet.begin(mac, ip); + server.begin(); +} + +void loop() +{ + // listen for incoming clients + EthernetClient client = server.available(); + if (client) { + // an http request ends with a blank line + boolean currentLineIsBlank = true; + while (client.connected()) { + if (client.available()) { + char c = client.read(); + // if you've gotten to the end of the line (received a newline + // character) and the line is blank, the http request has ended, + // so you can send a reply + if (c == '\n' && currentLineIsBlank) { + // send a standard http response header + client.println("HTTP/1.1 200 OK"); + client.println("Content-Type: text/html"); + client.println(); + + // output the value of each analog input pin + for (int analogChannel = 0; analogChannel < 6; analogChannel++) { + client.print("analog input "); + client.print(analogChannel); + client.print(" is "); + client.print(analogRead(analogChannel)); + client.println("<br />"); + } + break; + } + if (c == '\n') { + // you're starting a new line + currentLineIsBlank = true; + } + else if (c != '\r') { + // you've gotten a character on the current line + currentLineIsBlank = false; + } + } + } + // give the web browser time to receive the data + delay(1); + // close the connection: + client.stop(); + } +} diff --git a/libraries/Ethernet/keywords.txt b/libraries/Ethernet/keywords.txt new file mode 100644 index 0000000..6b37cbe --- /dev/null +++ b/libraries/Ethernet/keywords.txt @@ -0,0 +1,37 @@ +####################################### +# Syntax Coloring Map For Ethernet +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +Ethernet KEYWORD1 +EthernetClient KEYWORD1 +EthernetServer KEYWORD1 +IPAddress KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### + +status KEYWORD2 +connect KEYWORD2 +write KEYWORD2 +available KEYWORD2 +read KEYWORD2 +peek KEYWORD2 +flush KEYWORD2 +stop KEYWORD2 +connected KEYWORD2 +begin KEYWORD2 +beginPacket KEYWORD2 +endPacket KEYWORD2 +parsePacket KEYWORD2 +remoteIP KEYWORD2 +remotePort KEYWORD2 + +####################################### +# Constants (LITERAL1) +####################################### + diff --git a/libraries/Ethernet/util.h b/libraries/Ethernet/util.h new file mode 100644 index 0000000..5042e82 --- /dev/null +++ b/libraries/Ethernet/util.h @@ -0,0 +1,13 @@ +#ifndef UTIL_H +#define UTIL_H + +#define htons(x) ( ((x)<<8) | (((x)>>8)&0xFF) ) +#define ntohs(x) htons(x) + +#define htonl(x) ( ((x)<<24 & 0xFF000000UL) | \ + ((x)<< 8 & 0x00FF0000UL) | \ + ((x)>> 8 & 0x0000FF00UL) | \ + ((x)>>24 & 0x000000FFUL) ) +#define ntohl(x) htonl(x) + +#endif diff --git a/libraries/Ethernet/utility/socket.cpp b/libraries/Ethernet/utility/socket.cpp new file mode 100644 index 0000000..fd3e442 --- /dev/null +++ b/libraries/Ethernet/utility/socket.cpp @@ -0,0 +1,400 @@ +#include "w5100.h" +#include "socket.h" + +static uint16_t local_port; + +/** + * @brief This Socket function initialize the channel in perticular mode, and set the port and wait for W5100 done it. + * @return 1 for success else 0. + */ +uint8_t socket(SOCKET s, uint8_t protocol, uint16_t port, uint8_t flag) +{ + if ((protocol == SnMR::TCP) || (protocol == SnMR::UDP) || (protocol == SnMR::IPRAW) || (protocol == SnMR::MACRAW) || (protocol == SnMR::PPPOE)) + { + close(s); + W5100.writeSnMR(s, protocol | flag); + if (port != 0) { + W5100.writeSnPORT(s, port); + } + else { + local_port++; // if don't set the source port, set local_port number. + W5100.writeSnPORT(s, local_port); + } + + W5100.execCmdSn(s, Sock_OPEN); + + return 1; + } + + return 0; +} + + +/** + * @brief This function close the socket and parameter is "s" which represent the socket number + */ +void close(SOCKET s) +{ + W5100.execCmdSn(s, Sock_CLOSE); + W5100.writeSnIR(s, 0xFF); +} + + +/** + * @brief This function established the connection for the channel in passive (server) mode. This function waits for the request from the peer. + * @return 1 for success else 0. + */ +uint8_t listen(SOCKET s) +{ + if (W5100.readSnSR(s) != SnSR::INIT) + return 0; + W5100.execCmdSn(s, Sock_LISTEN); + return 1; +} + + +/** + * @brief This function established the connection for the channel in Active (client) mode. + * This function waits for the untill the connection is established. + * + * @return 1 for success else 0. + */ +uint8_t connect(SOCKET s, uint8_t * addr, uint16_t port) +{ + if + ( + ((addr[0] == 0xFF) && (addr[1] == 0xFF) && (addr[2] == 0xFF) && (addr[3] == 0xFF)) || + ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) || + (port == 0x00) + ) + return 0; + + // set destination IP + W5100.writeSnDIPR(s, addr); + W5100.writeSnDPORT(s, port); + W5100.execCmdSn(s, Sock_CONNECT); + + return 1; +} + + + +/** + * @brief This function used for disconnect the socket and parameter is "s" which represent the socket number + * @return 1 for success else 0. + */ +void disconnect(SOCKET s) +{ + W5100.execCmdSn(s, Sock_DISCON); +} + + +/** + * @brief This function used to send the data in TCP mode + * @return 1 for success else 0. + */ +uint16_t send(SOCKET s, const uint8_t * buf, uint16_t len) +{ + uint8_t status=0; + uint16_t ret=0; + uint16_t freesize=0; + + if (len > W5100.SSIZE) + ret = W5100.SSIZE; // check size not to exceed MAX size. + else + ret = len; + + // if freebuf is available, start. + do + { + freesize = W5100.getTXFreeSize(s); + status = W5100.readSnSR(s); + if ((status != SnSR::ESTABLISHED) && (status != SnSR::CLOSE_WAIT)) + { + ret = 0; + break; + } + } + while (freesize < ret); + + // copy data + W5100.send_data_processing(s, (uint8_t *)buf, ret); + W5100.execCmdSn(s, Sock_SEND); + + /* +2008.01 bj */ + while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK ) + { + /* m2008.01 [bj] : reduce code */ + if ( W5100.readSnSR(s) == SnSR::CLOSED ) + { + close(s); + return 0; + } + } + /* +2008.01 bj */ + W5100.writeSnIR(s, SnIR::SEND_OK); + return ret; +} + + +/** + * @brief This function is an application I/F function which is used to receive the data in TCP mode. + * It continues to wait for data as much as the application wants to receive. + * + * @return received data size for success else -1. + */ +int16_t recv(SOCKET s, uint8_t *buf, int16_t len) +{ + // Check how much data is available + int16_t ret = W5100.getRXReceivedSize(s); + if ( ret == 0 ) + { + // No data available. + uint8_t status = W5100.readSnSR(s); + if ( status == SnSR::LISTEN || status == SnSR::CLOSED || status == SnSR::CLOSE_WAIT ) + { + // The remote end has closed its side of the connection, so this is the eof state + ret = 0; + } + else + { + // The connection is still up, but there's no data waiting to be read + ret = -1; + } + } + else if (ret > len) + { + ret = len; + } + + if ( ret > 0 ) + { + W5100.recv_data_processing(s, buf, ret); + W5100.execCmdSn(s, Sock_RECV); + } + return ret; +} + + +/** + * @brief Returns the first byte in the receive queue (no checking) + * + * @return + */ +uint16_t peek(SOCKET s, uint8_t *buf) +{ + W5100.recv_data_processing(s, buf, 1, 1); + + return 1; +} + + +/** + * @brief This function is an application I/F function which is used to send the data for other then TCP mode. + * Unlike TCP transmission, The peer's destination address and the port is needed. + * + * @return This function return send data size for success else -1. + */ +uint16_t sendto(SOCKET s, const uint8_t *buf, uint16_t len, uint8_t *addr, uint16_t port) +{ + uint16_t ret=0; + + if (len > W5100.SSIZE) ret = W5100.SSIZE; // check size not to exceed MAX size. + else ret = len; + + if + ( + ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) || + ((port == 0x00)) ||(ret == 0) + ) + { + /* +2008.01 [bj] : added return value */ + ret = 0; + } + else + { + W5100.writeSnDIPR(s, addr); + W5100.writeSnDPORT(s, port); + + // copy data + W5100.send_data_processing(s, (uint8_t *)buf, ret); + W5100.execCmdSn(s, Sock_SEND); + + /* +2008.01 bj */ + while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK ) + { + if (W5100.readSnIR(s) & SnIR::TIMEOUT) + { + /* +2008.01 [bj]: clear interrupt */ + W5100.writeSnIR(s, (SnIR::SEND_OK | SnIR::TIMEOUT)); /* clear SEND_OK & TIMEOUT */ + return 0; + } + } + + /* +2008.01 bj */ + W5100.writeSnIR(s, SnIR::SEND_OK); + } + return ret; +} + + +/** + * @brief This function is an application I/F function which is used to receive the data in other then + * TCP mode. This function is used to receive UDP, IP_RAW and MAC_RAW mode, and handle the header as well. + * + * @return This function return received data size for success else -1. + */ +uint16_t recvfrom(SOCKET s, uint8_t *buf, uint16_t len, uint8_t *addr, uint16_t *port) +{ + uint8_t head[8]; + uint16_t data_len=0; + uint16_t ptr=0; + + if ( len > 0 ) + { + ptr = W5100.readSnRX_RD(s); + switch (W5100.readSnMR(s) & 0x07) + { + case SnMR::UDP : + W5100.read_data(s, (uint8_t *)ptr, head, 0x08); + ptr += 8; + // read peer's IP address, port number. + addr[0] = head[0]; + addr[1] = head[1]; + addr[2] = head[2]; + addr[3] = head[3]; + *port = head[4]; + *port = (*port << 8) + head[5]; + data_len = head[6]; + data_len = (data_len << 8) + head[7]; + + W5100.read_data(s, (uint8_t *)ptr, buf, data_len); // data copy. + ptr += data_len; + + W5100.writeSnRX_RD(s, ptr); + break; + + case SnMR::IPRAW : + W5100.read_data(s, (uint8_t *)ptr, head, 0x06); + ptr += 6; + + addr[0] = head[0]; + addr[1] = head[1]; + addr[2] = head[2]; + addr[3] = head[3]; + data_len = head[4]; + data_len = (data_len << 8) + head[5]; + + W5100.read_data(s, (uint8_t *)ptr, buf, data_len); // data copy. + ptr += data_len; + + W5100.writeSnRX_RD(s, ptr); + break; + + case SnMR::MACRAW: + W5100.read_data(s,(uint8_t*)ptr,head,2); + ptr+=2; + data_len = head[0]; + data_len = (data_len<<8) + head[1] - 2; + + W5100.read_data(s,(uint8_t*) ptr,buf,data_len); + ptr += data_len; + W5100.writeSnRX_RD(s, ptr); + break; + + default : + break; + } + W5100.execCmdSn(s, Sock_RECV); + } + return data_len; +} + + +uint16_t igmpsend(SOCKET s, const uint8_t * buf, uint16_t len) +{ + uint8_t status=0; + uint16_t ret=0; + + if (len > W5100.SSIZE) + ret = W5100.SSIZE; // check size not to exceed MAX size. + else + ret = len; + + if (ret == 0) + return 0; + + W5100.send_data_processing(s, (uint8_t *)buf, ret); + W5100.execCmdSn(s, Sock_SEND); + + while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK ) + { + status = W5100.readSnSR(s); + if (W5100.readSnIR(s) & SnIR::TIMEOUT) + { + /* in case of igmp, if send fails, then socket closed */ + /* if you want change, remove this code. */ + close(s); + return 0; + } + } + + W5100.writeSnIR(s, SnIR::SEND_OK); + return ret; +} + +uint16_t bufferData(SOCKET s, uint16_t offset, const uint8_t* buf, uint16_t len) +{ + uint16_t ret =0; + if (len > W5100.getTXFreeSize(s)) + { + ret = W5100.getTXFreeSize(s); // check size not to exceed MAX size. + } + else + { + ret = len; + } + W5100.send_data_processing_offset(s, offset, buf, ret); + return ret; +} + +int startUDP(SOCKET s, uint8_t* addr, uint16_t port) +{ + if + ( + ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) || + ((port == 0x00)) + ) + { + return 0; + } + else + { + W5100.writeSnDIPR(s, addr); + W5100.writeSnDPORT(s, port); + return 1; + } +} + +int sendUDP(SOCKET s) +{ + W5100.execCmdSn(s, Sock_SEND); + + /* +2008.01 bj */ + while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK ) + { + if (W5100.readSnIR(s) & SnIR::TIMEOUT) + { + /* +2008.01 [bj]: clear interrupt */ + W5100.writeSnIR(s, (SnIR::SEND_OK|SnIR::TIMEOUT)); + return 0; + } + } + + /* +2008.01 bj */ + W5100.writeSnIR(s, SnIR::SEND_OK); + + /* Sent ok */ + return 1; +} + diff --git a/libraries/Ethernet/utility/socket.h b/libraries/Ethernet/utility/socket.h new file mode 100755 index 0000000..45e0fb3 --- /dev/null +++ b/libraries/Ethernet/utility/socket.h @@ -0,0 +1,41 @@ +#ifndef _SOCKET_H_ +#define _SOCKET_H_ + +#include "w5100.h" + +extern uint8_t socket(SOCKET s, uint8_t protocol, uint16_t port, uint8_t flag); // Opens a socket(TCP or UDP or IP_RAW mode) +extern void close(SOCKET s); // Close socket +extern uint8_t connect(SOCKET s, uint8_t * addr, uint16_t port); // Establish TCP connection (Active connection) +extern void disconnect(SOCKET s); // disconnect the connection +extern uint8_t listen(SOCKET s); // Establish TCP connection (Passive connection) +extern uint16_t send(SOCKET s, const uint8_t * buf, uint16_t len); // Send data (TCP) +extern int16_t recv(SOCKET s, uint8_t * buf, int16_t len); // Receive data (TCP) +extern uint16_t peek(SOCKET s, uint8_t *buf); +extern uint16_t sendto(SOCKET s, const uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t port); // Send data (UDP/IP RAW) +extern uint16_t recvfrom(SOCKET s, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t *port); // Receive data (UDP/IP RAW) + +extern uint16_t igmpsend(SOCKET s, const uint8_t * buf, uint16_t len); + +// Functions to allow buffered UDP send (i.e. where the UDP datagram is built up over a +// number of calls before being sent +/* + @brief This function sets up a UDP datagram, the data for which will be provided by one + or more calls to bufferData and then finally sent with sendUDP. + @return 1 if the datagram was successfully set up, or 0 if there was an error +*/ +extern int startUDP(SOCKET s, uint8_t* addr, uint16_t port); +/* + @brief This function copies up to len bytes of data from buf into a UDP datagram to be + sent later by sendUDP. Allows datagrams to be built up from a series of bufferData calls. + @return Number of bytes successfully buffered +*/ +uint16_t bufferData(SOCKET s, uint16_t offset, const uint8_t* buf, uint16_t len); +/* + @brief Send a UDP datagram built up from a sequence of startUDP followed by one or more + calls to bufferData. + @return 1 if the datagram was successfully sent, or 0 if there was an error +*/ +int sendUDP(SOCKET s); + +#endif +/* _SOCKET_H_ */ diff --git a/libraries/Ethernet/utility/w5100.cpp b/libraries/Ethernet/utility/w5100.cpp new file mode 100644 index 0000000..9c748fd --- /dev/null +++ b/libraries/Ethernet/utility/w5100.cpp @@ -0,0 +1,188 @@ +/* + * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st> + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of either the GNU General Public License version 2 + * or the GNU Lesser General Public License version 2.1, both as + * published by the Free Software Foundation. + */ + +#include <stdio.h> +#include <string.h> +#include <avr/interrupt.h> + +#include "w5100.h" + +// W5100 controller instance +W5100Class W5100; + +#define TX_RX_MAX_BUF_SIZE 2048 +#define TX_BUF 0x1100 +#define RX_BUF (TX_BUF + TX_RX_MAX_BUF_SIZE) + +#define TXBUF_BASE 0x4000 +#define RXBUF_BASE 0x6000 + +void W5100Class::init(void) +{ + delay(300); + + SPI.begin(); + initSS(); + + writeMR(1<<RST); + writeTMSR(0x55); + writeRMSR(0x55); + + for (int i=0; i<MAX_SOCK_NUM; i++) { + SBASE[i] = TXBUF_BASE + SSIZE * i; + RBASE[i] = RXBUF_BASE + RSIZE * i; + } +} + +uint16_t W5100Class::getTXFreeSize(SOCKET s) +{ + uint16_t val=0, val1=0; + do { + val1 = readSnTX_FSR(s); + if (val1 != 0) + val = readSnTX_FSR(s); + } + while (val != val1); + return val; +} + +uint16_t W5100Class::getRXReceivedSize(SOCKET s) +{ + uint16_t val=0,val1=0; + do { + val1 = readSnRX_RSR(s); + if (val1 != 0) + val = readSnRX_RSR(s); + } + while (val != val1); + return val; +} + + +void W5100Class::send_data_processing(SOCKET s, const uint8_t *data, uint16_t len) +{ + // This is same as having no offset in a call to send_data_processing_offset + send_data_processing_offset(s, 0, data, len); +} + +void W5100Class::send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len) +{ + uint16_t ptr = readSnTX_WR(s); + ptr += data_offset; + uint16_t offset = ptr & SMASK; + uint16_t dstAddr = offset + SBASE[s]; + + if (offset + len > SSIZE) + { + // Wrap around circular buffer + uint16_t size = SSIZE - offset; + write(dstAddr, data, size); + write(SBASE[s], data + size, len - size); + } + else { + write(dstAddr, data, len); + } + + ptr += len; + writeSnTX_WR(s, ptr); +} + + +void W5100Class::recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek) +{ + uint16_t ptr; + ptr = readSnRX_RD(s); + read_data(s, (uint8_t *)ptr, data, len); + if (!peek) + { + ptr += len; + writeSnRX_RD(s, ptr); + } +} + +void W5100Class::read_data(SOCKET s, volatile uint8_t *src, volatile uint8_t *dst, uint16_t len) +{ + uint16_t size; + uint16_t src_mask; + uint16_t src_ptr; + + src_mask = (uint16_t)src & RMASK; + src_ptr = RBASE[s] + src_mask; + + if( (src_mask + len) > RSIZE ) + { + size = RSIZE - src_mask; + read(src_ptr, (uint8_t *)dst, size); + dst += size; + read(RBASE[s], (uint8_t *) dst, len - size); + } + else + read(src_ptr, (uint8_t *) dst, len); +} + + +uint8_t W5100Class::write(uint16_t _addr, uint8_t _data) +{ + setSS(); + SPI.transfer(0xF0); + SPI.transfer(_addr >> 8); + SPI.transfer(_addr & 0xFF); + SPI.transfer(_data); + resetSS(); + return 1; +} + +uint16_t W5100Class::write(uint16_t _addr, const uint8_t *_buf, uint16_t _len) +{ + for (uint16_t i=0; i<_len; i++) + { + setSS(); + SPI.transfer(0xF0); + SPI.transfer(_addr >> 8); + SPI.transfer(_addr & 0xFF); + _addr++; + SPI.transfer(_buf[i]); + resetSS(); + } + return _len; +} + +uint8_t W5100Class::read(uint16_t _addr) +{ + setSS(); + SPI.transfer(0x0F); + SPI.transfer(_addr >> 8); + SPI.transfer(_addr & 0xFF); + uint8_t _data = SPI.transfer(0); + resetSS(); + return _data; +} + +uint16_t W5100Class::read(uint16_t _addr, uint8_t *_buf, uint16_t _len) +{ + for (uint16_t i=0; i<_len; i++) + { + setSS(); + SPI.transfer(0x0F); + SPI.transfer(_addr >> 8); + SPI.transfer(_addr & 0xFF); + _addr++; + _buf[i] = SPI.transfer(0); + resetSS(); + } + return _len; +} + +void W5100Class::execCmdSn(SOCKET s, SockCMD _cmd) { + // Send command to socket + writeSnCR(s, _cmd); + // Wait for command to complete + while (readSnCR(s)) + ; +} diff --git a/libraries/Ethernet/utility/w5100.h b/libraries/Ethernet/utility/w5100.h new file mode 100755 index 0000000..153aedb --- /dev/null +++ b/libraries/Ethernet/utility/w5100.h @@ -0,0 +1,400 @@ +/* + * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st> + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of either the GNU General Public License version 2 + * or the GNU Lesser General Public License version 2.1, both as + * published by the Free Software Foundation. + */ + +#ifndef W5100_H_INCLUDED +#define W5100_H_INCLUDED + +#include <avr/pgmspace.h> +#include <SPI.h> + +#define MAX_SOCK_NUM 4 + +typedef uint8_t SOCKET; + +#define IDM_OR 0x8000 +#define IDM_AR0 0x8001 +#define IDM_AR1 0x8002 +#define IDM_DR 0x8003 +/* +class MR { +public: + static const uint8_t RST = 0x80; + static const uint8_t PB = 0x10; + static const uint8_t PPPOE = 0x08; + static const uint8_t LB = 0x04; + static const uint8_t AI = 0x02; + static const uint8_t IND = 0x01; +}; +*/ +/* +class IR { +public: + static const uint8_t CONFLICT = 0x80; + static const uint8_t UNREACH = 0x40; + static const uint8_t PPPoE = 0x20; + static const uint8_t SOCK0 = 0x01; + static const uint8_t SOCK1 = 0x02; + static const uint8_t SOCK2 = 0x04; + static const uint8_t SOCK3 = 0x08; + static inline uint8_t SOCK(SOCKET ch) { return (0x01 << ch); }; +}; +*/ + +class SnMR { +public: + static const uint8_t CLOSE = 0x00; + static const uint8_t TCP = 0x01; + static const uint8_t UDP = 0x02; + static const uint8_t IPRAW = 0x03; + static const uint8_t MACRAW = 0x04; + static const uint8_t PPPOE = 0x05; + static const uint8_t ND = 0x20; + static const uint8_t MULTI = 0x80; +}; + +enum SockCMD { + Sock_OPEN = 0x01, + Sock_LISTEN = 0x02, + Sock_CONNECT = 0x04, + Sock_DISCON = 0x08, + Sock_CLOSE = 0x10, + Sock_SEND = 0x20, + Sock_SEND_MAC = 0x21, + Sock_SEND_KEEP = 0x22, + Sock_RECV = 0x40 +}; + +/*class SnCmd { +public: + static const uint8_t OPEN = 0x01; + static const uint8_t LISTEN = 0x02; + static const uint8_t CONNECT = 0x04; + static const uint8_t DISCON = 0x08; + static const uint8_t CLOSE = 0x10; + static const uint8_t SEND = 0x20; + static const uint8_t SEND_MAC = 0x21; + static const uint8_t SEND_KEEP = 0x22; + static const uint8_t RECV = 0x40; +}; +*/ + +class SnIR { +public: + static const uint8_t SEND_OK = 0x10; + static const uint8_t TIMEOUT = 0x08; + static const uint8_t RECV = 0x04; + static const uint8_t DISCON = 0x02; + static const uint8_t CON = 0x01; +}; + +class SnSR { +public: + static const uint8_t CLOSED = 0x00; + static const uint8_t INIT = 0x13; + static const uint8_t LISTEN = 0x14; + static const uint8_t SYNSENT = 0x15; + static const uint8_t SYNRECV = 0x16; + static const uint8_t ESTABLISHED = 0x17; + static const uint8_t FIN_WAIT = 0x18; + static const uint8_t CLOSING = 0x1A; + static const uint8_t TIME_WAIT = 0x1B; + static const uint8_t CLOSE_WAIT = 0x1C; + static const uint8_t LAST_ACK = 0x1D; + static const uint8_t UDP = 0x22; + static const uint8_t IPRAW = 0x32; + static const uint8_t MACRAW = 0x42; + static const uint8_t PPPOE = 0x5F; +}; + +class IPPROTO { +public: + static const uint8_t IP = 0; + static const uint8_t ICMP = 1; + static const uint8_t IGMP = 2; + static const uint8_t GGP = 3; + static const uint8_t TCP = 6; + static const uint8_t PUP = 12; + static const uint8_t UDP = 17; + static const uint8_t IDP = 22; + static const uint8_t ND = 77; + static const uint8_t RAW = 255; +}; + +class W5100Class { + +public: + void init(); + + /** + * @brief This function is being used for copy the data form Receive buffer of the chip to application buffer. + * + * It calculate the actual physical address where one has to read + * the data from Receive buffer. Here also take care of the condition while it exceed + * the Rx memory uper-bound of socket. + */ + void read_data(SOCKET s, volatile uint8_t * src, volatile uint8_t * dst, uint16_t len); + + /** + * @brief This function is being called by send() and sendto() function also. + * + * This function read the Tx write pointer register and after copy the data in buffer update the Tx write pointer + * register. User should read upper byte first and lower byte later to get proper value. + */ + void send_data_processing(SOCKET s, const uint8_t *data, uint16_t len); + /** + * @brief A copy of send_data_processing that uses the provided ptr for the + * write offset. Only needed for the "streaming" UDP API, where + * a single UDP packet is built up over a number of calls to + * send_data_processing_ptr, because TX_WR doesn't seem to get updated + * correctly in those scenarios + * @param ptr value to use in place of TX_WR. If 0, then the value is read + * in from TX_WR + * @return New value for ptr, to be used in the next call + */ +// FIXME Update documentation + void send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len); + + /** + * @brief This function is being called by recv() also. + * + * This function read the Rx read pointer register + * and after copy the data from receive buffer update the Rx write pointer register. + * User should read upper byte first and lower byte later to get proper value. + */ + void recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek = 0); + + inline void setGatewayIp(uint8_t *_addr); + inline void getGatewayIp(uint8_t *_addr); + + inline void setSubnetMask(uint8_t *_addr); + inline void getSubnetMask(uint8_t *_addr); + + inline void setMACAddress(uint8_t * addr); + inline void getMACAddress(uint8_t * addr); + + inline void setIPAddress(uint8_t * addr); + inline void getIPAddress(uint8_t * addr); + + inline void setRetransmissionTime(uint16_t timeout); + inline void setRetransmissionCount(uint8_t _retry); + + void execCmdSn(SOCKET s, SockCMD _cmd); + + uint16_t getTXFreeSize(SOCKET s); + uint16_t getRXReceivedSize(SOCKET s); + + + // W5100 Registers + // --------------- +private: + static uint8_t write(uint16_t _addr, uint8_t _data); + static uint16_t write(uint16_t addr, const uint8_t *buf, uint16_t len); + static uint8_t read(uint16_t addr); + static uint16_t read(uint16_t addr, uint8_t *buf, uint16_t len); + +#define __GP_REGISTER8(name, address) \ + static inline void write##name(uint8_t _data) { \ + write(address, _data); \ + } \ + static inline uint8_t read##name() { \ + return read(address); \ + } +#define __GP_REGISTER16(name, address) \ + static void write##name(uint16_t _data) { \ + write(address, _data >> 8); \ + write(address+1, _data & 0xFF); \ + } \ + static uint16_t read##name() { \ + uint16_t res = read(address); \ + res = (res << 8) + read(address + 1); \ + return res; \ + } +#define __GP_REGISTER_N(name, address, size) \ + static uint16_t write##name(uint8_t *_buff) { \ + return write(address, _buff, size); \ + } \ + static uint16_t read##name(uint8_t *_buff) { \ + return read(address, _buff, size); \ + } + +public: + __GP_REGISTER8 (MR, 0x0000); // Mode + __GP_REGISTER_N(GAR, 0x0001, 4); // Gateway IP address + __GP_REGISTER_N(SUBR, 0x0005, 4); // Subnet mask address + __GP_REGISTER_N(SHAR, 0x0009, 6); // Source MAC address + __GP_REGISTER_N(SIPR, 0x000F, 4); // Source IP address + __GP_REGISTER8 (IR, 0x0015); // Interrupt + __GP_REGISTER8 (IMR, 0x0016); // Interrupt Mask + __GP_REGISTER16(RTR, 0x0017); // Timeout address + __GP_REGISTER8 (RCR, 0x0019); // Retry count + __GP_REGISTER8 (RMSR, 0x001A); // Receive memory size + __GP_REGISTER8 (TMSR, 0x001B); // Transmit memory size + __GP_REGISTER8 (PATR, 0x001C); // Authentication type address in PPPoE mode + __GP_REGISTER8 (PTIMER, 0x0028); // PPP LCP Request Timer + __GP_REGISTER8 (PMAGIC, 0x0029); // PPP LCP Magic Number + __GP_REGISTER_N(UIPR, 0x002A, 4); // Unreachable IP address in UDP mode + __GP_REGISTER16(UPORT, 0x002E); // Unreachable Port address in UDP mode + +#undef __GP_REGISTER8 +#undef __GP_REGISTER16 +#undef __GP_REGISTER_N + + // W5100 Socket registers + // ---------------------- +private: + static inline uint8_t readSn(SOCKET _s, uint16_t _addr); + static inline uint8_t writeSn(SOCKET _s, uint16_t _addr, uint8_t _data); + static inline uint16_t readSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t len); + static inline uint16_t writeSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t len); + + static const uint16_t CH_BASE = 0x0400; + static const uint16_t CH_SIZE = 0x0100; + +#define __SOCKET_REGISTER8(name, address) \ + static inline void write##name(SOCKET _s, uint8_t _data) { \ + writeSn(_s, address, _data); \ + } \ + static inline uint8_t read##name(SOCKET _s) { \ + return readSn(_s, address); \ + } +#define __SOCKET_REGISTER16(name, address) \ + static void write##name(SOCKET _s, uint16_t _data) { \ + writeSn(_s, address, _data >> 8); \ + writeSn(_s, address+1, _data & 0xFF); \ + } \ + static uint16_t read##name(SOCKET _s) { \ + uint16_t res = readSn(_s, address); \ + uint16_t res2 = readSn(_s,address + 1); \ + res = res << 8; \ + res2 = res2 & 0xFF; \ + res = res | res2; \ + return res; \ + } +#define __SOCKET_REGISTER_N(name, address, size) \ + static uint16_t write##name(SOCKET _s, uint8_t *_buff) { \ + return writeSn(_s, address, _buff, size); \ + } \ + static uint16_t read##name(SOCKET _s, uint8_t *_buff) { \ + return readSn(_s, address, _buff, size); \ + } + +public: + __SOCKET_REGISTER8(SnMR, 0x0000) // Mode + __SOCKET_REGISTER8(SnCR, 0x0001) // Command + __SOCKET_REGISTER8(SnIR, 0x0002) // Interrupt + __SOCKET_REGISTER8(SnSR, 0x0003) // Status + __SOCKET_REGISTER16(SnPORT, 0x0004) // Source Port + __SOCKET_REGISTER_N(SnDHAR, 0x0006, 6) // Destination Hardw Addr + __SOCKET_REGISTER_N(SnDIPR, 0x000C, 4) // Destination IP Addr + __SOCKET_REGISTER16(SnDPORT, 0x0010) // Destination Port + __SOCKET_REGISTER16(SnMSSR, 0x0012) // Max Segment Size + __SOCKET_REGISTER8(SnPROTO, 0x0014) // Protocol in IP RAW Mode + __SOCKET_REGISTER8(SnTOS, 0x0015) // IP TOS + __SOCKET_REGISTER8(SnTTL, 0x0016) // IP TTL + __SOCKET_REGISTER16(SnTX_FSR, 0x0020) // TX Free Size + __SOCKET_REGISTER16(SnTX_RD, 0x0022) // TX Read Pointer + __SOCKET_REGISTER16(SnTX_WR, 0x0024) // TX Write Pointer + __SOCKET_REGISTER16(SnRX_RSR, 0x0026) // RX Free Size + __SOCKET_REGISTER16(SnRX_RD, 0x0028) // RX Read Pointer + __SOCKET_REGISTER16(SnRX_WR, 0x002A) // RX Write Pointer (supported?) + +#undef __SOCKET_REGISTER8 +#undef __SOCKET_REGISTER16 +#undef __SOCKET_REGISTER_N + + +private: + static const uint8_t RST = 7; // Reset BIT + + static const int SOCKETS = 4; + static const uint16_t SMASK = 0x07FF; // Tx buffer MASK + static const uint16_t RMASK = 0x07FF; // Rx buffer MASK +public: + static const uint16_t SSIZE = 2048; // Max Tx buffer size +private: + static const uint16_t RSIZE = 2048; // Max Rx buffer size + uint16_t SBASE[SOCKETS]; // Tx buffer base address + uint16_t RBASE[SOCKETS]; // Rx buffer base address + +private: +#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) + inline static void initSS() { DDRB |= _BV(4); }; + inline static void setSS() { PORTB &= ~_BV(4); }; + inline static void resetSS() { PORTB |= _BV(4); }; +#elif defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB162__) + inline static void initSS() { DDRB |= _BV(0); }; + inline static void setSS() { PORTB &= ~_BV(0); }; + inline static void resetSS() { PORTB |= _BV(0); }; +#else + inline static void initSS() { DDRB |= _BV(2); }; + inline static void setSS() { PORTB &= ~_BV(2); }; + inline static void resetSS() { PORTB |= _BV(2); }; +#endif + +}; + +extern W5100Class W5100; + +uint8_t W5100Class::readSn(SOCKET _s, uint16_t _addr) { + return read(CH_BASE + _s * CH_SIZE + _addr); +} + +uint8_t W5100Class::writeSn(SOCKET _s, uint16_t _addr, uint8_t _data) { + return write(CH_BASE + _s * CH_SIZE + _addr, _data); +} + +uint16_t W5100Class::readSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t _len) { + return read(CH_BASE + _s * CH_SIZE + _addr, _buf, _len); +} + +uint16_t W5100Class::writeSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t _len) { + return write(CH_BASE + _s * CH_SIZE + _addr, _buf, _len); +} + +void W5100Class::getGatewayIp(uint8_t *_addr) { + readGAR(_addr); +} + +void W5100Class::setGatewayIp(uint8_t *_addr) { + writeGAR(_addr); +} + +void W5100Class::getSubnetMask(uint8_t *_addr) { + readSUBR(_addr); +} + +void W5100Class::setSubnetMask(uint8_t *_addr) { + writeSUBR(_addr); +} + +void W5100Class::getMACAddress(uint8_t *_addr) { + readSHAR(_addr); +} + +void W5100Class::setMACAddress(uint8_t *_addr) { + writeSHAR(_addr); +} + +void W5100Class::getIPAddress(uint8_t *_addr) { + readSIPR(_addr); +} + +void W5100Class::setIPAddress(uint8_t *_addr) { + writeSIPR(_addr); +} + +void W5100Class::setRetransmissionTime(uint16_t _timeout) { + writeRTR(_timeout); +} + +void W5100Class::setRetransmissionCount(uint8_t _retry) { + writeRCR(_retry); +} + +#endif diff --git a/libraries/Firmata/Boards.h b/libraries/Firmata/Boards.h new file mode 100644 index 0000000..06f69c6 --- /dev/null +++ b/libraries/Firmata/Boards.h @@ -0,0 +1,366 @@ +/* Boards.h - Hardware Abstraction Layer for Firmata library */ + +#ifndef Firmata_Boards_h +#define Firmata_Boards_h + +#include <inttypes.h> + +#if defined(ARDUINO) && ARDUINO >= 100 +#include "Arduino.h" // for digitalRead, digitalWrite, etc +#else +#include "WProgram.h" +#endif + +// Normally Servo.h must be included before Firmata.h (which then includes +// this file). If Servo.h wasn't included, this allows the code to still +// compile, but without support for any Servos. Hopefully that's what the +// user intended by not including Servo.h +#ifndef MAX_SERVOS +#define MAX_SERVOS 0 +#endif + +/* + Firmata Hardware Abstraction Layer + +Firmata is built on top of the hardware abstraction functions of Arduino, +specifically digitalWrite, digitalRead, analogWrite, analogRead, and +pinMode. While these functions offer simple integer pin numbers, Firmata +needs more information than is provided by Arduino. This file provides +all other hardware specific details. To make Firmata support a new board, +only this file should require editing. + +The key concept is every "pin" implemented by Firmata may be mapped to +any pin as implemented by Arduino. Usually a simple 1-to-1 mapping is +best, but such mapping should not be assumed. This hardware abstraction +layer allows Firmata to implement any number of pins which map onto the +Arduino implemented pins in almost any arbitrary way. + + +General Constants: + +These constants provide basic information Firmata requires. + +TOTAL_PINS: The total number of pins Firmata implemented by Firmata. + Usually this will match the number of pins the Arduino functions + implement, including any pins pins capable of analog or digital. + However, Firmata may implement any number of pins. For example, + on Arduino Mini with 8 analog inputs, 6 of these may be used + for digital functions, and 2 are analog only. On such boards, + Firmata can implement more pins than Arduino's pinMode() + function, in order to accommodate those special pins. The + Firmata protocol supports a maximum of 128 pins, so this + constant must not exceed 128. + +TOTAL_ANALOG_PINS: The total number of analog input pins implemented. + The Firmata protocol allows up to 16 analog inputs, accessed + using offsets 0 to 15. Because Firmata presents the analog + inputs using different offsets than the actual pin numbers + (a legacy of Arduino's analogRead function, and the way the + analog input capable pins are physically labeled on all + Arduino boards), the total number of analog input signals + must be specified. 16 is the maximum. + +VERSION_BLINK_PIN: When Firmata starts up, it will blink the version + number. This constant is the Arduino pin number where a + LED is connected. + + +Pin Mapping Macros: + +These macros provide the mapping between pins as implemented by +Firmata protocol and the actual pin numbers used by the Arduino +functions. Even though such mappings are often simple, pin +numbers received by Firmata protocol should always be used as +input to these macros, and the result of the macro should be +used with with any Arduino function. + +When Firmata is extended to support a new pin mode or feature, +a pair of macros should be added and used for all hardware +access. For simple 1:1 mapping, these macros add no actual +overhead, yet their consistent use allows source code which +uses them consistently to be easily adapted to all other boards +with different requirements. + +IS_PIN_XXXX(pin): The IS_PIN macros resolve to true or non-zero + if a pin as implemented by Firmata corresponds to a pin + that actually implements the named feature. + +PIN_TO_XXXX(pin): The PIN_TO macros translate pin numbers as + implemented by Firmata to the pin numbers needed as inputs + to the Arduino functions. The corresponding IS_PIN macro + should always be tested before using a PIN_TO macro, so + these macros only need to handle valid Firmata pin + numbers for the named feature. + + +Port Access Inline Funtions: + +For efficiency, Firmata protocol provides access to digital +input and output pins grouped by 8 bit ports. When these +groups of 8 correspond to actual 8 bit ports as implemented +by the hardware, these inline functions can provide high +speed direct port access. Otherwise, a default implementation +using 8 calls to digitalWrite or digitalRead is used. + +When porting Firmata to a new board, it is recommended to +use the default functions first and focus only on the constants +and macros above. When those are working, if optimized port +access is desired, these inline functions may be extended. +The recommended approach defines a symbol indicating which +optimization to use, and then conditional complication is +used within these functions. + +readPort(port, bitmask): Read an 8 bit port, returning the value. + port: The port number, Firmata pins port*8 to port*8+7 + bitmask: The actual pins to read, indicated by 1 bits. + +writePort(port, value, bitmask): Write an 8 bit port. + port: The port number, Firmata pins port*8 to port*8+7 + value: The 8 bit value to write + bitmask: The actual pins to write, indicated by 1 bits. +*/ + +/*============================================================================== + * Board Specific Configuration + *============================================================================*/ + +#ifndef digitalPinHasPWM +#define digitalPinHasPWM(p) IS_PIN_DIGITAL(p) +#endif + +// Arduino Duemilanove, Diecimila, and NG +#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) +#if defined(NUM_ANALOG_INPUTS) && NUM_ANALOG_INPUTS == 6 +#define TOTAL_ANALOG_PINS 6 +#define TOTAL_PINS 20 // 14 digital + 6 analog +#else +#define TOTAL_ANALOG_PINS 8 +#define TOTAL_PINS 22 // 14 digital + 8 analog +#endif +#define VERSION_BLINK_PIN 13 +#define IS_PIN_DIGITAL(p) ((p) >= 2 && (p) <= 19) +#define IS_PIN_ANALOG(p) ((p) >= 14 && (p) < 14 + TOTAL_ANALOG_PINS) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) (IS_PIN_DIGITAL(p) && (p) - 2 < MAX_SERVOS) +#define IS_PIN_I2C(p) ((p) == 18 || (p) == 19) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) ((p) - 14) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) ((p) - 2) +#define ARDUINO_PINOUT_OPTIMIZE 1 + + +// Wiring (and board) +#elif defined(WIRING) +#define VERSION_BLINK_PIN WLED +#define IS_PIN_DIGITAL(p) ((p) >= 0 && (p) < TOTAL_PINS) +#define IS_PIN_ANALOG(p) ((p) >= FIRST_ANALOG_PIN && (p) < (FIRST_ANALOG_PIN+TOTAL_ANALOG_PINS)) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) ((p) >= 0 && (p) < MAX_SERVOS) +#define IS_PIN_I2C(p) ((p) == SDA || (p) == SCL) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) ((p) - FIRST_ANALOG_PIN) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) (p) + + +// old Arduinos +#elif defined(__AVR_ATmega8__) +#define TOTAL_ANALOG_PINS 6 +#define TOTAL_PINS 20 // 14 digital + 6 analog +#define VERSION_BLINK_PIN 13 +#define IS_PIN_DIGITAL(p) ((p) >= 2 && (p) <= 19) +#define IS_PIN_ANALOG(p) ((p) >= 14 && (p) <= 19) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) (IS_PIN_DIGITAL(p) && (p) - 2 < MAX_SERVOS) +#define IS_PIN_I2C(p) ((p) == 18 || (p) == 19) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) ((p) - 14) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) ((p) - 2) +#define ARDUINO_PINOUT_OPTIMIZE 1 + + +// Arduino Mega +#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) +#define TOTAL_ANALOG_PINS 16 +#define TOTAL_PINS 70 // 54 digital + 16 analog +#define VERSION_BLINK_PIN 13 +#define IS_PIN_DIGITAL(p) ((p) >= 2 && (p) < TOTAL_PINS) +#define IS_PIN_ANALOG(p) ((p) >= 54 && (p) < TOTAL_PINS) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) ((p) >= 2 && (p) - 2 < MAX_SERVOS) +#define IS_PIN_I2C(p) ((p) == 20 || (p) == 21) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) ((p) - 54) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) ((p) - 2) + + +// Teensy 1.0 +#elif defined(__AVR_AT90USB162__) +#define TOTAL_ANALOG_PINS 0 +#define TOTAL_PINS 21 // 21 digital + no analog +#define VERSION_BLINK_PIN 6 +#define IS_PIN_DIGITAL(p) ((p) >= 0 && (p) < TOTAL_PINS) +#define IS_PIN_ANALOG(p) (0) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) ((p) >= 0 && (p) < MAX_SERVOS) +#define IS_PIN_I2C(p) (0) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) (0) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) (p) + + +// Teensy 2.0 +#elif defined(__AVR_ATmega32U4__) +#define TOTAL_ANALOG_PINS 12 +#define TOTAL_PINS 25 // 11 digital + 12 analog +#define VERSION_BLINK_PIN 11 +#define IS_PIN_DIGITAL(p) ((p) >= 0 && (p) < TOTAL_PINS) +#define IS_PIN_ANALOG(p) ((p) >= 11 && (p) <= 22) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) ((p) >= 0 && (p) < MAX_SERVOS) +#define IS_PIN_I2C(p) ((p) == 5 || (p) == 6) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) (((p)<22)?21-(p):11) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) (p) + + +// Teensy++ 1.0 and 2.0 +#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__) +#define TOTAL_ANALOG_PINS 8 +#define TOTAL_PINS 46 // 38 digital + 8 analog +#define VERSION_BLINK_PIN 6 +#define IS_PIN_DIGITAL(p) ((p) >= 0 && (p) < TOTAL_PINS) +#define IS_PIN_ANALOG(p) ((p) >= 38 && (p) < TOTAL_PINS) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) ((p) >= 0 && (p) < MAX_SERVOS) +#define IS_PIN_I2C(p) ((p) == 0 || (p) == 1) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) ((p) - 38) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) (p) + + +// Sanguino +#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__) +#define TOTAL_ANALOG_PINS 8 +#define TOTAL_PINS 32 // 24 digital + 8 analog +#define VERSION_BLINK_PIN 0 +#define IS_PIN_DIGITAL(p) ((p) >= 2 && (p) < TOTAL_PINS) +#define IS_PIN_ANALOG(p) ((p) >= 24 && (p) < TOTAL_PINS) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) ((p) >= 0 && (p) < MAX_SERVOS) +#define IS_PIN_I2C(p) ((p) == 16 || (p) == 17) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) ((p) - 24) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) ((p) - 2) + + +// Illuminato +#elif defined(__AVR_ATmega645__) +#define TOTAL_ANALOG_PINS 6 +#define TOTAL_PINS 42 // 36 digital + 6 analog +#define VERSION_BLINK_PIN 13 +#define IS_PIN_DIGITAL(p) ((p) >= 2 && (p) < TOTAL_PINS) +#define IS_PIN_ANALOG(p) ((p) >= 36 && (p) < TOTAL_PINS) +#define IS_PIN_PWM(p) digitalPinHasPWM(p) +#define IS_PIN_SERVO(p) ((p) >= 0 && (p) < MAX_SERVOS) +#define IS_PIN_I2C(p) ((p) == 4 || (p) == 5) +#define PIN_TO_DIGITAL(p) (p) +#define PIN_TO_ANALOG(p) ((p) - 36) +#define PIN_TO_PWM(p) PIN_TO_DIGITAL(p) +#define PIN_TO_SERVO(p) ((p) - 2) + + +// anything else +#else +#error "Please edit Boards.h with a hardware abstraction for this board" +#endif + + +/*============================================================================== + * readPort() - Read an 8 bit port + *============================================================================*/ + +static inline unsigned char readPort(byte, byte) __attribute__((always_inline, unused)); +static inline unsigned char readPort(byte port, byte bitmask) +{ +#if defined(ARDUINO_PINOUT_OPTIMIZE) + if (port == 0) return (PIND & 0xFC) & bitmask; // ignore Rx/Tx 0/1 + if (port == 1) return ((PINB & 0x3F) | ((PINC & 0x03) << 6)) & bitmask; + if (port == 2) return ((PINC & 0x3C) >> 2) & bitmask; + return 0; +#else + unsigned char out=0, pin=port*8; + if (IS_PIN_DIGITAL(pin+0) && (bitmask & 0x01) && digitalRead(PIN_TO_DIGITAL(pin+0))) out |= 0x01; + if (IS_PIN_DIGITAL(pin+1) && (bitmask & 0x02) && digitalRead(PIN_TO_DIGITAL(pin+1))) out |= 0x02; + if (IS_PIN_DIGITAL(pin+2) && (bitmask & 0x04) && digitalRead(PIN_TO_DIGITAL(pin+2))) out |= 0x04; + if (IS_PIN_DIGITAL(pin+3) && (bitmask & 0x08) && digitalRead(PIN_TO_DIGITAL(pin+3))) out |= 0x08; + if (IS_PIN_DIGITAL(pin+4) && (bitmask & 0x10) && digitalRead(PIN_TO_DIGITAL(pin+4))) out |= 0x10; + if (IS_PIN_DIGITAL(pin+5) && (bitmask & 0x20) && digitalRead(PIN_TO_DIGITAL(pin+5))) out |= 0x20; + if (IS_PIN_DIGITAL(pin+6) && (bitmask & 0x40) && digitalRead(PIN_TO_DIGITAL(pin+6))) out |= 0x40; + if (IS_PIN_DIGITAL(pin+7) && (bitmask & 0x80) && digitalRead(PIN_TO_DIGITAL(pin+7))) out |= 0x80; + return out; +#endif +} + +/*============================================================================== + * writePort() - Write an 8 bit port, only touch pins specified by a bitmask + *============================================================================*/ + +static inline unsigned char writePort(byte, byte, byte) __attribute__((always_inline, unused)); +static inline unsigned char writePort(byte port, byte value, byte bitmask) +{ +#if defined(ARDUINO_PINOUT_OPTIMIZE) + if (port == 0) { + bitmask = bitmask & 0xFC; // do not touch Tx & Rx pins + byte valD = value & bitmask; + byte maskD = ~bitmask; + cli(); + PORTD = (PORTD & maskD) | valD; + sei(); + } else if (port == 1) { + byte valB = (value & bitmask) & 0x3F; + byte valC = (value & bitmask) >> 6; + byte maskB = ~(bitmask & 0x3F); + byte maskC = ~((bitmask & 0xC0) >> 6); + cli(); + PORTB = (PORTB & maskB) | valB; + PORTC = (PORTC & maskC) | valC; + sei(); + } else if (port == 2) { + bitmask = bitmask & 0x0F; + byte valC = (value & bitmask) << 2; + byte maskC = ~(bitmask << 2); + cli(); + PORTC = (PORTC & maskC) | valC; + sei(); + } +#else + byte pin=port*8; + if ((bitmask & 0x01)) digitalWrite(PIN_TO_DIGITAL(pin+0), (value & 0x01)); + if ((bitmask & 0x02)) digitalWrite(PIN_TO_DIGITAL(pin+1), (value & 0x02)); + if ((bitmask & 0x04)) digitalWrite(PIN_TO_DIGITAL(pin+2), (value & 0x04)); + if ((bitmask & 0x08)) digitalWrite(PIN_TO_DIGITAL(pin+3), (value & 0x08)); + if ((bitmask & 0x10)) digitalWrite(PIN_TO_DIGITAL(pin+4), (value & 0x10)); + if ((bitmask & 0x20)) digitalWrite(PIN_TO_DIGITAL(pin+5), (value & 0x20)); + if ((bitmask & 0x40)) digitalWrite(PIN_TO_DIGITAL(pin+6), (value & 0x40)); + if ((bitmask & 0x80)) digitalWrite(PIN_TO_DIGITAL(pin+7), (value & 0x80)); +#endif +} + + + + +#ifndef TOTAL_PORTS +#define TOTAL_PORTS ((TOTAL_PINS + 7) / 8) +#endif + + +#endif /* Firmata_Boards_h */ + diff --git a/libraries/Firmata/Firmata.cpp b/libraries/Firmata/Firmata.cpp new file mode 100644 index 0000000..e81c10b --- /dev/null +++ b/libraries/Firmata/Firmata.cpp @@ -0,0 +1,444 @@ +/* + Firmata.cpp - Firmata library + Copyright (C) 2006-2008 Hans-Christoph Steiner. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + See file LICENSE.txt for further informations on licensing terms. +*/ + +//****************************************************************************** +//* Includes +//****************************************************************************** + +#include "Firmata.h" +#include "HardwareSerial.h" + +extern "C" { +#include <string.h> +#include <stdlib.h> +} + +//****************************************************************************** +//* Support Functions +//****************************************************************************** + +void FirmataClass::sendValueAsTwo7bitBytes(int value) +{ + FirmataSerial.write(value & B01111111); // LSB + FirmataSerial.write(value >> 7 & B01111111); // MSB +} + +void FirmataClass::startSysex(void) +{ + FirmataSerial.write(START_SYSEX); +} + +void FirmataClass::endSysex(void) +{ + FirmataSerial.write(END_SYSEX); +} + +//****************************************************************************** +//* Constructors +//****************************************************************************** + +FirmataClass::FirmataClass(Stream &s) : FirmataSerial(s) +{ + firmwareVersionCount = 0; + systemReset(); +} + +//****************************************************************************** +//* Public Methods +//****************************************************************************** + +/* begin method for overriding default serial bitrate */ +void FirmataClass::begin(void) +{ + begin(57600); +} + +/* begin method for overriding default serial bitrate */ +void FirmataClass::begin(long speed) +{ + Serial.begin(speed); + FirmataSerial = Serial; + blinkVersion(); + printVersion(); + printFirmwareVersion(); +} + +void FirmataClass::begin(Stream &s) +{ + FirmataSerial = s; + systemReset(); + printVersion(); + printFirmwareVersion(); +} + +// output the protocol version message to the serial port +void FirmataClass::printVersion(void) { + FirmataSerial.write(REPORT_VERSION); + FirmataSerial.write(FIRMATA_MAJOR_VERSION); + FirmataSerial.write(FIRMATA_MINOR_VERSION); +} + +void FirmataClass::blinkVersion(void) +{ + // flash the pin with the protocol version + pinMode(VERSION_BLINK_PIN,OUTPUT); + pin13strobe(FIRMATA_MAJOR_VERSION, 40, 210); + delay(250); + pin13strobe(FIRMATA_MINOR_VERSION, 40, 210); + delay(125); +} + +void FirmataClass::printFirmwareVersion(void) +{ + byte i; + + if(firmwareVersionCount) { // make sure that the name has been set before reporting + startSysex(); + FirmataSerial.write(REPORT_FIRMWARE); + FirmataSerial.write(firmwareVersionVector[0]); // major version number + FirmataSerial.write(firmwareVersionVector[1]); // minor version number + for(i=2; i<firmwareVersionCount; ++i) { + sendValueAsTwo7bitBytes(firmwareVersionVector[i]); + } + endSysex(); + } +} + +void FirmataClass::setFirmwareNameAndVersion(const char *name, byte major, byte minor) +{ + const char *filename; + char *extension; + + // parse out ".cpp" and "applet/" that comes from using __FILE__ + extension = strstr(name, ".cpp"); + filename = strrchr(name, '/') + 1; //points to slash, +1 gets to start of filename + // add two bytes for version numbers + if(extension && filename) { + firmwareVersionCount = extension - filename + 2; + } else { + firmwareVersionCount = strlen(name) + 2; + filename = name; + } + firmwareVersionVector = (byte *) malloc(firmwareVersionCount); + firmwareVersionVector[firmwareVersionCount] = 0; + firmwareVersionVector[0] = major; + firmwareVersionVector[1] = minor; + strncpy((char*)firmwareVersionVector + 2, filename, firmwareVersionCount - 2); + // alas, no snprintf on Arduino + // snprintf(firmwareVersionVector, MAX_DATA_BYTES, "%c%c%s", + // (char)major, (char)minor, firmwareVersionVector); +} + +//------------------------------------------------------------------------------ +// Serial Receive Handling + +int FirmataClass::available(void) +{ + return FirmataSerial.available(); +} + + +void FirmataClass::processSysexMessage(void) +{ + switch(storedInputData[0]) { //first byte in buffer is command + case REPORT_FIRMWARE: + printFirmwareVersion(); + break; + case STRING_DATA: + if(currentStringCallback) { + byte bufferLength = (sysexBytesRead - 1) / 2; + char *buffer = (char*)malloc(bufferLength * sizeof(char)); + byte i = 1; + byte j = 0; + while(j < bufferLength) { + buffer[j] = (char)storedInputData[i]; + i++; + buffer[j] += (char)(storedInputData[i] << 7); + i++; + j++; + } + (*currentStringCallback)(buffer); + } + break; + default: + if(currentSysexCallback) + (*currentSysexCallback)(storedInputData[0], sysexBytesRead - 1, storedInputData + 1); + } +} + +void FirmataClass::processInput(void) +{ + int inputData = FirmataSerial.read(); // this is 'int' to handle -1 when no data + int command; + + // TODO make sure it handles -1 properly + + if (parsingSysex) { + if(inputData == END_SYSEX) { + //stop sysex byte + parsingSysex = false; + //fire off handler function + processSysexMessage(); + } else { + //normal data byte - add to buffer + storedInputData[sysexBytesRead] = inputData; + sysexBytesRead++; + } + } else if( (waitForData > 0) && (inputData < 128) ) { + waitForData--; + storedInputData[waitForData] = inputData; + if( (waitForData==0) && executeMultiByteCommand ) { // got the whole message + switch(executeMultiByteCommand) { + case ANALOG_MESSAGE: + if(currentAnalogCallback) { + (*currentAnalogCallback)(multiByteChannel, + (storedInputData[0] << 7) + + storedInputData[1]); + } + break; + case DIGITAL_MESSAGE: + if(currentDigitalCallback) { + (*currentDigitalCallback)(multiByteChannel, + (storedInputData[0] << 7) + + storedInputData[1]); + } + break; + case SET_PIN_MODE: + if(currentPinModeCallback) + (*currentPinModeCallback)(storedInputData[1], storedInputData[0]); + break; + case REPORT_ANALOG: + if(currentReportAnalogCallback) + (*currentReportAnalogCallback)(multiByteChannel,storedInputData[0]); + break; + case REPORT_DIGITAL: + if(currentReportDigitalCallback) + (*currentReportDigitalCallback)(multiByteChannel,storedInputData[0]); + break; + } + executeMultiByteCommand = 0; + } + } else { + // remove channel info from command byte if less than 0xF0 + if(inputData < 0xF0) { + command = inputData & 0xF0; + multiByteChannel = inputData & 0x0F; + } else { + command = inputData; + // commands in the 0xF* range don't use channel data + } + switch (command) { + case ANALOG_MESSAGE: + case DIGITAL_MESSAGE: + case SET_PIN_MODE: + waitForData = 2; // two data bytes needed + executeMultiByteCommand = command; + break; + case REPORT_ANALOG: + case REPORT_DIGITAL: + waitForData = 1; // two data bytes needed + executeMultiByteCommand = command; + break; + case START_SYSEX: + parsingSysex = true; + sysexBytesRead = 0; + break; + case SYSTEM_RESET: + systemReset(); + break; + case REPORT_VERSION: + Firmata.printVersion(); + break; + } + } +} + +//------------------------------------------------------------------------------ +// Serial Send Handling + +// send an analog message +void FirmataClass::sendAnalog(byte pin, int value) +{ + // pin can only be 0-15, so chop higher bits + FirmataSerial.write(ANALOG_MESSAGE | (pin & 0xF)); + sendValueAsTwo7bitBytes(value); +} + +// send a single digital pin in a digital message +void FirmataClass::sendDigital(byte pin, int value) +{ + /* TODO add single pin digital messages to the protocol, this needs to + * track the last digital data sent so that it can be sure to change just + * one bit in the packet. This is complicated by the fact that the + * numbering of the pins will probably differ on Arduino, Wiring, and + * other boards. The DIGITAL_MESSAGE sends 14 bits at a time, but it is + * probably easier to send 8 bit ports for any board with more than 14 + * digital pins. + */ + + // TODO: the digital message should not be sent on the serial port every + // time sendDigital() is called. Instead, it should add it to an int + // which will be sent on a schedule. If a pin changes more than once + // before the digital message is sent on the serial port, it should send a + // digital message for each change. + + // if(value == 0) + // sendDigitalPortPair(); +} + + +// send 14-bits in a single digital message (protocol v1) +// send an 8-bit port in a single digital message (protocol v2) +void FirmataClass::sendDigitalPort(byte portNumber, int portData) +{ + FirmataSerial.write(DIGITAL_MESSAGE | (portNumber & 0xF)); + FirmataSerial.write((byte)portData % 128); // Tx bits 0-6 + FirmataSerial.write(portData >> 7); // Tx bits 7-13 +} + + +void FirmataClass::sendSysex(byte command, byte bytec, byte* bytev) +{ + byte i; + startSysex(); + FirmataSerial.write(command); + for(i=0; i<bytec; i++) { + sendValueAsTwo7bitBytes(bytev[i]); + } + endSysex(); +} + +void FirmataClass::sendString(byte command, const char* string) +{ + sendSysex(command, strlen(string), (byte *)string); +} + + +// send a string as the protocol string type +void FirmataClass::sendString(const char* string) +{ + sendString(STRING_DATA, string); +} + + +// Internal Actions///////////////////////////////////////////////////////////// + +// generic callbacks +void FirmataClass::attach(byte command, callbackFunction newFunction) +{ + switch(command) { + case ANALOG_MESSAGE: currentAnalogCallback = newFunction; break; + case DIGITAL_MESSAGE: currentDigitalCallback = newFunction; break; + case REPORT_ANALOG: currentReportAnalogCallback = newFunction; break; + case REPORT_DIGITAL: currentReportDigitalCallback = newFunction; break; + case SET_PIN_MODE: currentPinModeCallback = newFunction; break; + } +} + +void FirmataClass::attach(byte command, systemResetCallbackFunction newFunction) +{ + switch(command) { + case SYSTEM_RESET: currentSystemResetCallback = newFunction; break; + } +} + +void FirmataClass::attach(byte command, stringCallbackFunction newFunction) +{ + switch(command) { + case STRING_DATA: currentStringCallback = newFunction; break; + } +} + +void FirmataClass::attach(byte command, sysexCallbackFunction newFunction) +{ + currentSysexCallback = newFunction; +} + +void FirmataClass::detach(byte command) +{ + switch(command) { + case SYSTEM_RESET: currentSystemResetCallback = NULL; break; + case STRING_DATA: currentStringCallback = NULL; break; + case START_SYSEX: currentSysexCallback = NULL; break; + default: + attach(command, (callbackFunction)NULL); + } +} + +// sysex callbacks +/* + * this is too complicated for analogReceive, but maybe for Sysex? + void FirmataClass::attachSysex(sysexFunction newFunction) + { + byte i; + byte tmpCount = analogReceiveFunctionCount; + analogReceiveFunction* tmpArray = analogReceiveFunctionArray; + analogReceiveFunctionCount++; + analogReceiveFunctionArray = (analogReceiveFunction*) calloc(analogReceiveFunctionCount, sizeof(analogReceiveFunction)); + for(i = 0; i < tmpCount; i++) { + analogReceiveFunctionArray[i] = tmpArray[i]; + } + analogReceiveFunctionArray[tmpCount] = newFunction; + free(tmpArray); + } +*/ + +//****************************************************************************** +//* Private Methods +//****************************************************************************** + + + +// resets the system state upon a SYSTEM_RESET message from the host software +void FirmataClass::systemReset(void) +{ + byte i; + + waitForData = 0; // this flag says the next serial input will be data + executeMultiByteCommand = 0; // execute this after getting multi-byte data + multiByteChannel = 0; // channel data for multiByteCommands + + + for(i=0; i<MAX_DATA_BYTES; i++) { + storedInputData[i] = 0; + } + + parsingSysex = false; + sysexBytesRead = 0; + + if(currentSystemResetCallback) + (*currentSystemResetCallback)(); + + //flush(); //TODO uncomment when Firmata is a subclass of HardwareSerial +} + + + +// ============================================================================= +// used for flashing the pin for the version number +void FirmataClass::pin13strobe(int count, int onInterval, int offInterval) +{ + byte i; + pinMode(VERSION_BLINK_PIN, OUTPUT); + for(i=0; i<count; i++) { + delay(offInterval); + digitalWrite(VERSION_BLINK_PIN, HIGH); + delay(onInterval); + digitalWrite(VERSION_BLINK_PIN, LOW); + } +} + + +// make one instance for the user to use +FirmataClass Firmata(Serial); + + diff --git a/libraries/Firmata/Firmata.h b/libraries/Firmata/Firmata.h new file mode 100644 index 0000000..74f1ccc --- /dev/null +++ b/libraries/Firmata/Firmata.h @@ -0,0 +1,163 @@ +/* + Firmata.h - Firmata library + Copyright (C) 2006-2008 Hans-Christoph Steiner. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + See file LICENSE.txt for further informations on licensing terms. +*/ + +#ifndef Firmata_h +#define Firmata_h + +#include "Boards.h" /* Hardware Abstraction Layer + Wiring/Arduino */ + +/* Version numbers for the protocol. The protocol is still changing, so these + * version numbers are important. This number can be queried so that host + * software can test whether it will be compatible with the currently + * installed firmware. */ +#define FIRMATA_MAJOR_VERSION 2 // for non-compatible changes +#define FIRMATA_MINOR_VERSION 3 // for backwards compatible changes +#define FIRMATA_BUGFIX_VERSION 1 // for bugfix releases + +#define MAX_DATA_BYTES 32 // max number of data bytes in non-Sysex messages + +// message command bytes (128-255/0x80-0xFF) +#define DIGITAL_MESSAGE 0x90 // send data for a digital pin +#define ANALOG_MESSAGE 0xE0 // send data for an analog pin (or PWM) +#define REPORT_ANALOG 0xC0 // enable analog input by pin # +#define REPORT_DIGITAL 0xD0 // enable digital input by port pair +// +#define SET_PIN_MODE 0xF4 // set a pin to INPUT/OUTPUT/PWM/etc +// +#define REPORT_VERSION 0xF9 // report protocol version +#define SYSTEM_RESET 0xFF // reset from MIDI +// +#define START_SYSEX 0xF0 // start a MIDI Sysex message +#define END_SYSEX 0xF7 // end a MIDI Sysex message + +// extended command set using sysex (0-127/0x00-0x7F) +/* 0x00-0x0F reserved for user-defined commands */ +#define SERVO_CONFIG 0x70 // set max angle, minPulse, maxPulse, freq +#define STRING_DATA 0x71 // a string message with 14-bits per char +#define SHIFT_DATA 0x75 // a bitstream to/from a shift register +#define I2C_REQUEST 0x76 // send an I2C read/write request +#define I2C_REPLY 0x77 // a reply to an I2C read request +#define I2C_CONFIG 0x78 // config I2C settings such as delay times and power pins +#define EXTENDED_ANALOG 0x6F // analog write (PWM, Servo, etc) to any pin +#define PIN_STATE_QUERY 0x6D // ask for a pin's current mode and value +#define PIN_STATE_RESPONSE 0x6E // reply with pin's current mode and value +#define CAPABILITY_QUERY 0x6B // ask for supported modes and resolution of all pins +#define CAPABILITY_RESPONSE 0x6C // reply with supported modes and resolution +#define ANALOG_MAPPING_QUERY 0x69 // ask for mapping of analog to pin numbers +#define ANALOG_MAPPING_RESPONSE 0x6A // reply with mapping info +#define REPORT_FIRMWARE 0x79 // report name and version of the firmware +#define SAMPLING_INTERVAL 0x7A // set the poll rate of the main loop +#define SYSEX_NON_REALTIME 0x7E // MIDI Reserved for non-realtime messages +#define SYSEX_REALTIME 0x7F // MIDI Reserved for realtime messages +// these are DEPRECATED to make the naming more consistent +#define FIRMATA_STRING 0x71 // same as STRING_DATA +#define SYSEX_I2C_REQUEST 0x76 // same as I2C_REQUEST +#define SYSEX_I2C_REPLY 0x77 // same as I2C_REPLY +#define SYSEX_SAMPLING_INTERVAL 0x7A // same as SAMPLING_INTERVAL + +// pin modes +//#define INPUT 0x00 // defined in wiring.h +//#define OUTPUT 0x01 // defined in wiring.h +#define ANALOG 0x02 // analog pin in analogInput mode +#define PWM 0x03 // digital pin in PWM output mode +#define SERVO 0x04 // digital pin in Servo output mode +#define SHIFT 0x05 // shiftIn/shiftOut mode +#define I2C 0x06 // pin included in I2C setup +#define TOTAL_PIN_MODES 7 + +extern "C" { +// callback function types + typedef void (*callbackFunction)(byte, int); + typedef void (*systemResetCallbackFunction)(void); + typedef void (*stringCallbackFunction)(char*); + typedef void (*sysexCallbackFunction)(byte command, byte argc, byte*argv); +} + + +// TODO make it a subclass of a generic Serial/Stream base class +class FirmataClass +{ +public: + FirmataClass(Stream &s); +/* Arduino constructors */ + void begin(); + void begin(long); + void begin(Stream &s); +/* querying functions */ + void printVersion(void); + void blinkVersion(void); + void printFirmwareVersion(void); + //void setFirmwareVersion(byte major, byte minor); // see macro below + void setFirmwareNameAndVersion(const char *name, byte major, byte minor); +/* serial receive handling */ + int available(void); + void processInput(void); +/* serial send handling */ + void sendAnalog(byte pin, int value); + void sendDigital(byte pin, int value); // TODO implement this + void sendDigitalPort(byte portNumber, int portData); + void sendString(const char* string); + void sendString(byte command, const char* string); + void sendSysex(byte command, byte bytec, byte* bytev); +/* attach & detach callback functions to messages */ + void attach(byte command, callbackFunction newFunction); + void attach(byte command, systemResetCallbackFunction newFunction); + void attach(byte command, stringCallbackFunction newFunction); + void attach(byte command, sysexCallbackFunction newFunction); + void detach(byte command); + +private: + Stream &FirmataSerial; +/* firmware name and version */ + byte firmwareVersionCount; + byte *firmwareVersionVector; +/* input message handling */ + byte waitForData; // this flag says the next serial input will be data + byte executeMultiByteCommand; // execute this after getting multi-byte data + byte multiByteChannel; // channel data for multiByteCommands + byte storedInputData[MAX_DATA_BYTES]; // multi-byte data +/* sysex */ + boolean parsingSysex; + int sysexBytesRead; +/* callback functions */ + callbackFunction currentAnalogCallback; + callbackFunction currentDigitalCallback; + callbackFunction currentReportAnalogCallback; + callbackFunction currentReportDigitalCallback; + callbackFunction currentPinModeCallback; + systemResetCallbackFunction currentSystemResetCallback; + stringCallbackFunction currentStringCallback; + sysexCallbackFunction currentSysexCallback; + +/* private methods ------------------------------ */ + void processSysexMessage(void); + void systemReset(void); + void pin13strobe(int count, int onInterval, int offInterval); + void sendValueAsTwo7bitBytes(int value); + void startSysex(void); + void endSysex(void); +}; + +extern FirmataClass Firmata; + +/*============================================================================== + * MACROS + *============================================================================*/ + +/* shortcut for setFirmwareNameAndVersion() that uses __FILE__ to set the + * firmware name. It needs to be a macro so that __FILE__ is included in the + * firmware source file rather than the library source file. + */ +#define setFirmwareVersion(x, y) setFirmwareNameAndVersion(__FILE__, x, y) + +#endif /* Firmata_h */ + diff --git a/libraries/Firmata/LICENSE.txt b/libraries/Firmata/LICENSE.txt new file mode 100644 index 0000000..77cec6d --- /dev/null +++ b/libraries/Firmata/LICENSE.txt @@ -0,0 +1,458 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN +WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY +AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU +FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR +CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE +LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING +RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A +FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF +SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH +DAMAGES. + diff --git a/libraries/Firmata/TODO.txt b/libraries/Firmata/TODO.txt new file mode 100644 index 0000000..86c9858 --- /dev/null +++ b/libraries/Firmata/TODO.txt @@ -0,0 +1,14 @@ + +- make Firmata a subclass of HardwareSerial + +- per-pin digital callback, since the per-port callback is a bit complicated + for beginners (maybe Firmata is not for beginners...) + +- simplify SimpleDigitalFirmata, take out the code that checks to see if the + data has changed, since it is a bit complicated for this example. Ideally + this example would be based on a call + +- turn current SimpleDigitalFirmata into DigitalPortFirmata for a more complex + example using the code which checks for changes before doing anything + +- test integration with Wiring diff --git a/libraries/Firmata/examples/AllInputsFirmata/AllInputsFirmata.ino b/libraries/Firmata/examples/AllInputsFirmata/AllInputsFirmata.ino new file mode 100644 index 0000000..bff7366 --- /dev/null +++ b/libraries/Firmata/examples/AllInputsFirmata/AllInputsFirmata.ino @@ -0,0 +1,90 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* + * This firmware reads all inputs and sends them as fast as it can. It was + * inspired by the ease-of-use of the Arduino2Max program. + * + * This example code is in the public domain. + */ +#include <Firmata.h> + +byte pin; + +int analogValue; +int previousAnalogValues[TOTAL_ANALOG_PINS]; + +byte portStatus[TOTAL_PORTS]; // each bit: 1=pin is digital input, 0=other/ignore +byte previousPINs[TOTAL_PORTS]; + +/* timer variables */ +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis +/* make sure that the FTDI buffer doesn't go over 60 bytes, otherwise you + get long, random delays. So only read analogs every 20ms or so */ +int samplingInterval = 19; // how often to run the main loop (in ms) + +void sendPort(byte portNumber, byte portValue) +{ + portValue = portValue & portStatus[portNumber]; + if(previousPINs[portNumber] != portValue) { + Firmata.sendDigitalPort(portNumber, portValue); + previousPINs[portNumber] = portValue; + } +} + +void setup() +{ + byte i, port, status; + + Firmata.setFirmwareVersion(0, 1); + + for(pin = 0; pin < TOTAL_PINS; pin++) { + if IS_PIN_DIGITAL(pin) pinMode(PIN_TO_DIGITAL(pin), INPUT); + } + + for (port=0; port<TOTAL_PORTS; port++) { + status = 0; + for (i=0; i<8; i++) { + if (IS_PIN_DIGITAL(port * 8 + i)) status |= (1 << i); + } + portStatus[port] = status; + } + + Firmata.begin(57600); +} + +void loop() +{ + byte i; + + for (i=0; i<TOTAL_PORTS; i++) { + sendPort(i, readPort(i, 0xff)); + } + /* make sure that the FTDI buffer doesn't go over 60 bytes, otherwise you + get long, random delays. So only read analogs every 20ms or so */ + currentMillis = millis(); + if(currentMillis - previousMillis > samplingInterval) { + previousMillis += samplingInterval; + while(Firmata.available()) { + Firmata.processInput(); + } + for(pin = 0; pin < TOTAL_ANALOG_PINS; pin++) { + analogValue = analogRead(pin); + if(analogValue != previousAnalogValues[pin]) { + Firmata.sendAnalog(pin, analogValue); + previousAnalogValues[pin] = analogValue; + } + } + } +} + + diff --git a/libraries/Firmata/examples/AnalogFirmata/AnalogFirmata.ino b/libraries/Firmata/examples/AnalogFirmata/AnalogFirmata.ino new file mode 100644 index 0000000..ff1d664 --- /dev/null +++ b/libraries/Firmata/examples/AnalogFirmata/AnalogFirmata.ino @@ -0,0 +1,94 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* This firmware supports as many analog ports as possible, all analog inputs, + * four PWM outputs, and two with servo support. + * + * This example code is in the public domain. + */ +#include <Servo.h> +#include <Firmata.h> + +/*============================================================================== + * GLOBAL VARIABLES + *============================================================================*/ + +/* servos */ +Servo servo9, servo10; // one instance per pin +/* analog inputs */ +int analogInputsToReport = 0; // bitwise array to store pin reporting +int analogPin = 0; // counter for reading analog pins +/* timer variables */ +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis + + +/*============================================================================== + * FUNCTIONS + *============================================================================*/ + +void analogWriteCallback(byte pin, int value) +{ + switch(pin) { + case 9: servo9.write(value); break; + case 10: servo10.write(value); break; + case 3: + case 5: + case 6: + case 11: // PWM pins + analogWrite(pin, value); + break; + } +} +// ----------------------------------------------------------------------------- +// sets bits in a bit array (int) to toggle the reporting of the analogIns +void reportAnalogCallback(byte pin, int value) +{ + if(value == 0) { + analogInputsToReport = analogInputsToReport &~ (1 << pin); + } + else { // everything but 0 enables reporting of that pin + analogInputsToReport = analogInputsToReport | (1 << pin); + } + // TODO: save status to EEPROM here, if changed +} + +/*============================================================================== + * SETUP() + *============================================================================*/ +void setup() +{ + Firmata.setFirmwareVersion(0, 2); + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + Firmata.attach(REPORT_ANALOG, reportAnalogCallback); + + servo9.attach(9); + servo10.attach(10); + Firmata.begin(57600); +} + +/*============================================================================== + * LOOP() + *============================================================================*/ +void loop() +{ + while(Firmata.available()) + Firmata.processInput(); + currentMillis = millis(); + if(currentMillis - previousMillis > 20) { + previousMillis += 20; // run this every 20ms + for(analogPin=0;analogPin<TOTAL_ANALOG_PINS;analogPin++) { + if( analogInputsToReport & (1 << analogPin) ) + Firmata.sendAnalog(analogPin, analogRead(analogPin)); + } + } +} + diff --git a/libraries/Firmata/examples/EchoString/EchoString.ino b/libraries/Firmata/examples/EchoString/EchoString.ino new file mode 100644 index 0000000..5079697 --- /dev/null +++ b/libraries/Firmata/examples/EchoString/EchoString.ino @@ -0,0 +1,46 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* This sketch accepts strings and raw sysex messages and echos them back. + * + * This example code is in the public domain. + */ +#include <Firmata.h> + +byte analogPin; + +void stringCallback(char *myString) +{ + Firmata.sendString(myString); +} + + +void sysexCallback(byte command, byte argc, byte*argv) +{ + Firmata.sendSysex(command, argc, argv); +} + +void setup() +{ + Firmata.setFirmwareVersion(0, 1); + Firmata.attach(STRING_DATA, stringCallback); + Firmata.attach(START_SYSEX, sysexCallback); + Firmata.begin(57600); +} + +void loop() +{ + while(Firmata.available()) { + Firmata.processInput(); + } +} + + diff --git a/libraries/Firmata/examples/I2CFirmata/I2CFirmata.ino b/libraries/Firmata/examples/I2CFirmata/I2CFirmata.ino new file mode 100644 index 0000000..1da8963 --- /dev/null +++ b/libraries/Firmata/examples/I2CFirmata/I2CFirmata.ino @@ -0,0 +1,228 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* + Copyright (C) 2009 Jeff Hoefs. All rights reserved. + Copyright (C) 2009 Shigeru Kobayashi. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + See file LICENSE.txt for further informations on licensing terms. + */ + +#include <Wire.h> +#include <Firmata.h> + + +#define I2C_WRITE B00000000 +#define I2C_READ B00001000 +#define I2C_READ_CONTINUOUSLY B00010000 +#define I2C_STOP_READING B00011000 +#define I2C_READ_WRITE_MODE_MASK B00011000 + +#define MAX_QUERIES 8 + +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis +unsigned int samplingInterval = 32; // default sampling interval is 33ms +unsigned int i2cReadDelayTime = 0; // default delay time between i2c read request and Wire.requestFrom() +unsigned int powerPinsEnabled = 0; // use as boolean to prevent enablePowerPins from being called more than once + +#define MINIMUM_SAMPLING_INTERVAL 10 + +#define REGISTER_NOT_SPECIFIED -1 + +struct i2c_device_info { + byte addr; + byte reg; + byte bytes; +}; + +i2c_device_info query[MAX_QUERIES]; + +byte i2cRxData[32]; +boolean readingContinuously = false; +byte queryIndex = 0; + +void readAndReportData(byte address, int theRegister, byte numBytes) +{ + if (theRegister != REGISTER_NOT_SPECIFIED) { + Wire.beginTransmission(address); + Wire.write((byte)theRegister); + Wire.endTransmission(); + delayMicroseconds(i2cReadDelayTime); // delay is necessary for some devices such as WiiNunchuck + } + else { + theRegister = 0; // fill the register with a dummy value + } + + Wire.requestFrom(address, numBytes); + + // check to be sure correct number of bytes were returned by slave + if(numBytes == Wire.available()) { + i2cRxData[0] = address; + i2cRxData[1] = theRegister; + for (int i = 0; i < numBytes; i++) { + i2cRxData[2 + i] = Wire.read(); + } + // send slave address, register and received bytes + Firmata.sendSysex(I2C_REPLY, numBytes + 2, i2cRxData); + } + else { + if(numBytes > Wire.available()) { + Firmata.sendString("I2C Read Error: Too many bytes received"); + } else { + Firmata.sendString("I2C Read Error: Too few bytes received"); + } + } + +} + +void sysexCallback(byte command, byte argc, byte *argv) +{ + byte mode; + byte slaveAddress; + byte slaveRegister; + byte data; + int delayTime; + + if (command == I2C_REQUEST) { + mode = argv[1] & I2C_READ_WRITE_MODE_MASK; + slaveAddress = argv[0]; + + switch(mode) { + case I2C_WRITE: + Wire.beginTransmission(slaveAddress); + for (byte i = 2; i < argc; i += 2) { + data = argv[i] + (argv[i + 1] << 7); + Wire.write(data); + } + Wire.endTransmission(); + delayMicroseconds(70); // TODO is this needed? + break; + case I2C_READ: + if (argc == 6) { + // a slave register is specified + slaveRegister = argv[2] + (argv[3] << 7); + data = argv[4] + (argv[5] << 7); // bytes to read + readAndReportData(slaveAddress, (int)slaveRegister, data); + } + else { + // a slave register is NOT specified + data = argv[2] + (argv[3] << 7); // bytes to read + readAndReportData(slaveAddress, (int)REGISTER_NOT_SPECIFIED, data); + } + break; + case I2C_READ_CONTINUOUSLY: + if ((queryIndex + 1) >= MAX_QUERIES) { + // too many queries, just ignore + Firmata.sendString("too many queries"); + break; + } + query[queryIndex].addr = slaveAddress; + query[queryIndex].reg = argv[2] + (argv[3] << 7); + query[queryIndex].bytes = argv[4] + (argv[5] << 7); + readingContinuously = true; + queryIndex++; + break; + case I2C_STOP_READING: + readingContinuously = false; + queryIndex = 0; + break; + default: + break; + } + } + else if (command == SAMPLING_INTERVAL) { + samplingInterval = argv[0] + (argv[1] << 7); + + if (samplingInterval < MINIMUM_SAMPLING_INTERVAL) { + samplingInterval = MINIMUM_SAMPLING_INTERVAL; + } + + samplingInterval -= 1; + Firmata.sendString("sampling interval"); + } + + else if (command == I2C_CONFIG) { + delayTime = (argv[4] + (argv[5] << 7)); // MSB + delayTime = (delayTime << 8) + (argv[2] + (argv[3] << 7)); // add LSB + + if((argv[0] + (argv[1] << 7)) > 0) { + enablePowerPins(PORTC3, PORTC2); + } + + if(delayTime > 0) { + i2cReadDelayTime = delayTime; + } + + if(argc > 6) { + // If you extend I2C_Config, handle your data here + } + + } +} + +void systemResetCallback() +{ + readingContinuously = false; + queryIndex = 0; +} + +/* reference: BlinkM_funcs.h by Tod E. Kurt, ThingM, http://thingm.com/ */ +// Enables Pins A2 and A3 to be used as GND and Power +// so that I2C devices can be plugged directly +// into Arduino header (pins A2 - A5) +static void enablePowerPins(byte pwrpin, byte gndpin) +{ + if(powerPinsEnabled == 0) { + DDRC |= _BV(pwrpin) | _BV(gndpin); + PORTC &=~ _BV(gndpin); + PORTC |= _BV(pwrpin); + powerPinsEnabled = 1; + Firmata.sendString("Power pins enabled"); + delay(100); + } +} + +void setup() +{ + Firmata.setFirmwareVersion(2, 0); + + Firmata.attach(START_SYSEX, sysexCallback); + Firmata.attach(SYSTEM_RESET, systemResetCallback); + + for (int i = 0; i < TOTAL_PINS; ++i) { + pinMode(i, OUTPUT); + } + + Firmata.begin(57600); + Wire.begin(); +} + +void loop() +{ + while (Firmata.available()) { + Firmata.processInput(); + } + + currentMillis = millis(); + if (currentMillis - previousMillis > samplingInterval) { + previousMillis += samplingInterval; + + for (byte i = 0; i < queryIndex; i++) { + readAndReportData(query[i].addr, query[i].reg, query[i].bytes); + } + } +} diff --git a/libraries/Firmata/examples/OldStandardFirmata/LICENSE.txt b/libraries/Firmata/examples/OldStandardFirmata/LICENSE.txt new file mode 100644 index 0000000..77cec6d --- /dev/null +++ b/libraries/Firmata/examples/OldStandardFirmata/LICENSE.txt @@ -0,0 +1,458 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* + Copyright (C) 2006-2008 Hans-Christoph Steiner. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + See file LICENSE.txt for further informations on licensing terms. + */ + +/* + * This is an old version of StandardFirmata (v2.0). It is kept here because + * its the last version that works on an ATMEGA8 chip. Also, it can be used + * for host software that has not been updated to a newer version of the + * protocol. It also uses the old baud rate of 115200 rather than 57600. + */ + +#include <EEPROM.h> +#include <Firmata.h> + +/*============================================================================== + * GLOBAL VARIABLES + *============================================================================*/ + +/* analog inputs */ +int analogInputsToReport = 0; // bitwise array to store pin reporting +int analogPin = 0; // counter for reading analog pins + +/* digital pins */ +byte reportPINs[TOTAL_PORTS]; // PIN == input port +byte previousPINs[TOTAL_PORTS]; // PIN == input port +byte pinStatus[TOTAL_PINS]; // store pin status, default OUTPUT +byte portStatus[TOTAL_PORTS]; + +/* timer variables */ +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis + + +/*============================================================================== + * FUNCTIONS + *============================================================================*/ + +void outputPort(byte portNumber, byte portValue) +{ + portValue = portValue &~ portStatus[portNumber]; + if(previousPINs[portNumber] != portValue) { + Firmata.sendDigitalPort(portNumber, portValue); + previousPINs[portNumber] = portValue; + Firmata.sendDigitalPort(portNumber, portValue); + } +} + +/* ----------------------------------------------------------------------------- + * check all the active digital inputs for change of state, then add any events + * to the Serial output queue using Serial.print() */ +void checkDigitalInputs(void) +{ + byte i, tmp; + for(i=0; i < TOTAL_PORTS; i++) { + if(reportPINs[i]) { + switch(i) { + case 0: outputPort(0, PIND &~ B00000011); break; // ignore Rx/Tx 0/1 + case 1: outputPort(1, PINB); break; + case 2: outputPort(2, PINC); break; + } + } + } +} + +// ----------------------------------------------------------------------------- +/* sets the pin mode to the correct state and sets the relevant bits in the + * two bit-arrays that track Digital I/O and PWM status + */ +void setPinModeCallback(byte pin, int mode) { + byte port = 0; + byte offset = 0; + + if (pin < 8) { + port = 0; + offset = 0; + } else if (pin < 14) { + port = 1; + offset = 8; + } else if (pin < 22) { + port = 2; + offset = 14; + } + + if(pin > 1) { // ignore RxTx (pins 0 and 1) + pinStatus[pin] = mode; + switch(mode) { + case INPUT: + pinMode(pin, INPUT); + portStatus[port] = portStatus[port] &~ (1 << (pin - offset)); + break; + case OUTPUT: + digitalWrite(pin, LOW); // disable PWM + case PWM: + pinMode(pin, OUTPUT); + portStatus[port] = portStatus[port] | (1 << (pin - offset)); + break; + //case ANALOG: // TODO figure this out + default: + Firmata.sendString(""); + } + // TODO: save status to EEPROM here, if changed + } +} + +void analogWriteCallback(byte pin, int value) +{ + setPinModeCallback(pin,PWM); + analogWrite(pin, value); +} + +void digitalWriteCallback(byte port, int value) +{ + switch(port) { + case 0: // pins 2-7 (don't change Rx/Tx, pins 0 and 1) + // 0xFF03 == B1111111100000011 0x03 == B00000011 + PORTD = (value &~ 0xFF03) | (PORTD & 0x03); + break; + case 1: // pins 8-13 (14,15 are disabled for the crystal) + PORTB = (byte)value; + break; + case 2: // analog pins used as digital + PORTC = (byte)value; + break; + } +} + +// ----------------------------------------------------------------------------- +/* sets bits in a bit array (int) to toggle the reporting of the analogIns + */ +//void FirmataClass::setAnalogPinReporting(byte pin, byte state) { +//} +void reportAnalogCallback(byte pin, int value) +{ + if(value == 0) { + analogInputsToReport = analogInputsToReport &~ (1 << pin); + } + else { // everything but 0 enables reporting of that pin + analogInputsToReport = analogInputsToReport | (1 << pin); + } + // TODO: save status to EEPROM here, if changed +} + +void reportDigitalCallback(byte port, int value) +{ + reportPINs[port] = (byte)value; + if(port == 2) // turn off analog reporting when used as digital + analogInputsToReport = 0; +} + +/*============================================================================== + * SETUP() + *============================================================================*/ +void setup() +{ + byte i; + + Firmata.setFirmwareVersion(2, 0); + + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback); + Firmata.attach(REPORT_ANALOG, reportAnalogCallback); + Firmata.attach(REPORT_DIGITAL, reportDigitalCallback); + Firmata.attach(SET_PIN_MODE, setPinModeCallback); + + portStatus[0] = B00000011; // ignore Tx/RX pins + portStatus[1] = B11000000; // ignore 14/15 pins + portStatus[2] = B00000000; + +// for(i=0; i<TOTAL_PINS; ++i) { // TODO make this work with analogs + for(i=0; i<14; ++i) { + setPinModeCallback(i,OUTPUT); + } + // set all outputs to 0 to make sure internal pull-up resistors are off + PORTB = 0; // pins 8-15 + PORTC = 0; // analog port + PORTD = 0; // pins 0-7 + + // TODO rethink the init, perhaps it should report analog on default + for(i=0; i<TOTAL_PORTS; ++i) { + reportPINs[i] = false; + } + // TODO: load state from EEPROM here + + /* send digital inputs here, if enabled, to set the initial state on the + * host computer, since once in the loop(), this firmware will only send + * digital data on change. */ + if(reportPINs[0]) outputPort(0, PIND &~ B00000011); // ignore Rx/Tx 0/1 + if(reportPINs[1]) outputPort(1, PINB); + if(reportPINs[2]) outputPort(2, PINC); + + Firmata.begin(115200); +} + +/*============================================================================== + * LOOP() + *============================================================================*/ +void loop() +{ +/* DIGITALREAD - as fast as possible, check for changes and output them to the + * FTDI buffer using Serial.print() */ + checkDigitalInputs(); + currentMillis = millis(); + if(currentMillis - previousMillis > 20) { + previousMillis += 20; // run this every 20ms + /* SERIALREAD - Serial.read() uses a 128 byte circular buffer, so handle + * all serialReads at once, i.e. empty the buffer */ + while(Firmata.available()) + Firmata.processInput(); + /* SEND FTDI WRITE BUFFER - make sure that the FTDI buffer doesn't go over + * 60 bytes. use a timer to sending an event character every 4 ms to + * trigger the buffer to dump. */ + + /* ANALOGREAD - right after the event character, do all of the + * analogReads(). These only need to be done every 4ms. */ + for(analogPin=0;analogPin<TOTAL_ANALOG_PINS;analogPin++) { + if( analogInputsToReport & (1 << analogPin) ) { + Firmata.sendAnalog(analogPin, analogRead(analogPin)); + } + } + } +} diff --git a/libraries/Firmata/examples/ServoFirmata/ServoFirmata.ino b/libraries/Firmata/examples/ServoFirmata/ServoFirmata.ino new file mode 100644 index 0000000..cdcfff0 --- /dev/null +++ b/libraries/Firmata/examples/ServoFirmata/ServoFirmata.ino @@ -0,0 +1,53 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* This firmware supports as many servos as possible using the Servo library + * included in Arduino 0017 + * + * TODO add message to configure minPulse/maxPulse/degrees + * + * This example code is in the public domain. + */ + +#include <Servo.h> +#include <Firmata.h> + +Servo servos[MAX_SERVOS]; + +void analogWriteCallback(byte pin, int value) +{ + if (IS_PIN_SERVO(pin)) { + servos[PIN_TO_SERVO(pin)].write(value); + } +} + +void setup() +{ + byte pin; + + Firmata.setFirmwareVersion(0, 2); + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + + for (pin=0; pin < TOTAL_PINS; pin++) { + if (IS_PIN_SERVO(pin)) { + servos[PIN_TO_SERVO(pin)].attach(PIN_TO_DIGITAL(pin)); + } + } + + Firmata.begin(57600); +} + +void loop() +{ + while(Firmata.available()) + Firmata.processInput(); +} + diff --git a/libraries/Firmata/examples/SimpleAnalogFirmata/SimpleAnalogFirmata.ino b/libraries/Firmata/examples/SimpleAnalogFirmata/SimpleAnalogFirmata.ino new file mode 100644 index 0000000..44ea91e --- /dev/null +++ b/libraries/Firmata/examples/SimpleAnalogFirmata/SimpleAnalogFirmata.ino @@ -0,0 +1,46 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* Supports as many analog inputs and analog PWM outputs as possible. + * + * This example code is in the public domain. + */ +#include <Firmata.h> + +byte analogPin = 0; + +void analogWriteCallback(byte pin, int value) +{ + if (IS_PIN_PWM(pin)) { + pinMode(PIN_TO_DIGITAL(pin), OUTPUT); + analogWrite(PIN_TO_PWM(pin), value); + } +} + +void setup() +{ + Firmata.setFirmwareVersion(0, 1); + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + Firmata.begin(57600); +} + +void loop() +{ + while(Firmata.available()) { + Firmata.processInput(); + } + // do one analogRead per loop, so if PC is sending a lot of + // analog write messages, we will only delay 1 analogRead + Firmata.sendAnalog(analogPin, analogRead(analogPin)); + analogPin = analogPin + 1; + if (analogPin >= TOTAL_ANALOG_PINS) analogPin = 0; +} + diff --git a/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino b/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino new file mode 100644 index 0000000..a0d764f --- /dev/null +++ b/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino @@ -0,0 +1,72 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* Supports as many digital inputs and outputs as possible. + * + * This example code is in the public domain. + */ +#include <Firmata.h> + +byte previousPIN[TOTAL_PORTS]; // PIN means PORT for input +byte previousPORT[TOTAL_PORTS]; + +void outputPort(byte portNumber, byte portValue) +{ + // only send the data when it changes, otherwise you get too many messages! + if (previousPIN[portNumber] != portValue) { + Firmata.sendDigitalPort(portNumber, portValue); + previousPIN[portNumber] = portValue; + } +} + +void setPinModeCallback(byte pin, int mode) { + if (IS_PIN_DIGITAL(pin)) { + pinMode(PIN_TO_DIGITAL(pin), mode); + } +} + +void digitalWriteCallback(byte port, int value) +{ + byte i; + byte currentPinValue, previousPinValue; + + if (port < TOTAL_PORTS && value != previousPORT[port]) { + for(i=0; i<8; i++) { + currentPinValue = (byte) value & (1 << i); + previousPinValue = previousPORT[port] & (1 << i); + if(currentPinValue != previousPinValue) { + digitalWrite(i + (port*8), currentPinValue); + } + } + previousPORT[port] = value; + } +} + +void setup() +{ + Firmata.setFirmwareVersion(0, 1); + Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback); + Firmata.attach(SET_PIN_MODE, setPinModeCallback); + Firmata.begin(57600); +} + +void loop() +{ + byte i; + + for (i=0; i<TOTAL_PORTS; i++) { + outputPort(i, readPort(i, 0xff)); + } + + while(Firmata.available()) { + Firmata.processInput(); + } +} diff --git a/libraries/Firmata/examples/StandardFirmata/LICENSE.txt b/libraries/Firmata/examples/StandardFirmata/LICENSE.txt new file mode 100644 index 0000000..77cec6d --- /dev/null +++ b/libraries/Firmata/examples/StandardFirmata/LICENSE.txt @@ -0,0 +1,458 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* + Copyright (C) 2006-2008 Hans-Christoph Steiner. All rights reserved. + Copyright (C) 2010-2011 Paul Stoffregen. All rights reserved. + Copyright (C) 2009 Shigeru Kobayashi. All rights reserved. + Copyright (C) 2009-2011 Jeff Hoefs. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + See file LICENSE.txt for further informations on licensing terms. + + formatted using the GNU C formatting and indenting +*/ + +/* + * TODO: use Program Control to load stored profiles from EEPROM + */ + +#include <Servo.h> +#include <Wire.h> +#include <Firmata.h> + +// move the following defines to Firmata.h? +#define I2C_WRITE B00000000 +#define I2C_READ B00001000 +#define I2C_READ_CONTINUOUSLY B00010000 +#define I2C_STOP_READING B00011000 +#define I2C_READ_WRITE_MODE_MASK B00011000 +#define I2C_10BIT_ADDRESS_MODE_MASK B00100000 + +#define MAX_QUERIES 8 +#define MINIMUM_SAMPLING_INTERVAL 10 + +#define REGISTER_NOT_SPECIFIED -1 + +/*============================================================================== + * GLOBAL VARIABLES + *============================================================================*/ + +/* analog inputs */ +int analogInputsToReport = 0; // bitwise array to store pin reporting + +/* digital input ports */ +byte reportPINs[TOTAL_PORTS]; // 1 = report this port, 0 = silence +byte previousPINs[TOTAL_PORTS]; // previous 8 bits sent + +/* pins configuration */ +byte pinConfig[TOTAL_PINS]; // configuration of every pin +byte portConfigInputs[TOTAL_PORTS]; // each bit: 1 = pin in INPUT, 0 = anything else +int pinState[TOTAL_PINS]; // any value that has been written + +/* timer variables */ +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis +int samplingInterval = 19; // how often to run the main loop (in ms) + +/* i2c data */ +struct i2c_device_info { + byte addr; + byte reg; + byte bytes; +}; + +/* for i2c read continuous more */ +i2c_device_info query[MAX_QUERIES]; + +byte i2cRxData[32]; +boolean isI2CEnabled = false; +signed char queryIndex = -1; +unsigned int i2cReadDelayTime = 0; // default delay time between i2c read request and Wire.requestFrom() + +Servo servos[MAX_SERVOS]; +/*============================================================================== + * FUNCTIONS + *============================================================================*/ + +void readAndReportData(byte address, int theRegister, byte numBytes) { + // allow I2C requests that don't require a register read + // for example, some devices using an interrupt pin to signify new data available + // do not always require the register read so upon interrupt you call Wire.requestFrom() + if (theRegister != REGISTER_NOT_SPECIFIED) { + Wire.beginTransmission(address); + #if ARDUINO >= 100 + Wire.write((byte)theRegister); + #else + Wire.send((byte)theRegister); + #endif + Wire.endTransmission(); + delayMicroseconds(i2cReadDelayTime); // delay is necessary for some devices such as WiiNunchuck + } else { + theRegister = 0; // fill the register with a dummy value + } + + Wire.requestFrom(address, numBytes); // all bytes are returned in requestFrom + + // check to be sure correct number of bytes were returned by slave + if(numBytes == Wire.available()) { + i2cRxData[0] = address; + i2cRxData[1] = theRegister; + for (int i = 0; i < numBytes; i++) { + #if ARDUINO >= 100 + i2cRxData[2 + i] = Wire.read(); + #else + i2cRxData[2 + i] = Wire.receive(); + #endif + } + } + else { + if(numBytes > Wire.available()) { + Firmata.sendString("I2C Read Error: Too many bytes received"); + } else { + Firmata.sendString("I2C Read Error: Too few bytes received"); + } + } + + // send slave address, register and received bytes + Firmata.sendSysex(SYSEX_I2C_REPLY, numBytes + 2, i2cRxData); +} + +void outputPort(byte portNumber, byte portValue, byte forceSend) +{ + // pins not configured as INPUT are cleared to zeros + portValue = portValue & portConfigInputs[portNumber]; + // only send if the value is different than previously sent + if(forceSend || previousPINs[portNumber] != portValue) { + Firmata.sendDigitalPort(portNumber, portValue); + previousPINs[portNumber] = portValue; + } +} + +/* ----------------------------------------------------------------------------- + * check all the active digital inputs for change of state, then add any events + * to the Serial output queue using Serial.print() */ +void checkDigitalInputs(void) +{ + /* Using non-looping code allows constants to be given to readPort(). + * The compiler will apply substantial optimizations if the inputs + * to readPort() are compile-time constants. */ + if (TOTAL_PORTS > 0 && reportPINs[0]) outputPort(0, readPort(0, portConfigInputs[0]), false); + if (TOTAL_PORTS > 1 && reportPINs[1]) outputPort(1, readPort(1, portConfigInputs[1]), false); + if (TOTAL_PORTS > 2 && reportPINs[2]) outputPort(2, readPort(2, portConfigInputs[2]), false); + if (TOTAL_PORTS > 3 && reportPINs[3]) outputPort(3, readPort(3, portConfigInputs[3]), false); + if (TOTAL_PORTS > 4 && reportPINs[4]) outputPort(4, readPort(4, portConfigInputs[4]), false); + if (TOTAL_PORTS > 5 && reportPINs[5]) outputPort(5, readPort(5, portConfigInputs[5]), false); + if (TOTAL_PORTS > 6 && reportPINs[6]) outputPort(6, readPort(6, portConfigInputs[6]), false); + if (TOTAL_PORTS > 7 && reportPINs[7]) outputPort(7, readPort(7, portConfigInputs[7]), false); + if (TOTAL_PORTS > 8 && reportPINs[8]) outputPort(8, readPort(8, portConfigInputs[8]), false); + if (TOTAL_PORTS > 9 && reportPINs[9]) outputPort(9, readPort(9, portConfigInputs[9]), false); + if (TOTAL_PORTS > 10 && reportPINs[10]) outputPort(10, readPort(10, portConfigInputs[10]), false); + if (TOTAL_PORTS > 11 && reportPINs[11]) outputPort(11, readPort(11, portConfigInputs[11]), false); + if (TOTAL_PORTS > 12 && reportPINs[12]) outputPort(12, readPort(12, portConfigInputs[12]), false); + if (TOTAL_PORTS > 13 && reportPINs[13]) outputPort(13, readPort(13, portConfigInputs[13]), false); + if (TOTAL_PORTS > 14 && reportPINs[14]) outputPort(14, readPort(14, portConfigInputs[14]), false); + if (TOTAL_PORTS > 15 && reportPINs[15]) outputPort(15, readPort(15, portConfigInputs[15]), false); +} + +// ----------------------------------------------------------------------------- +/* sets the pin mode to the correct state and sets the relevant bits in the + * two bit-arrays that track Digital I/O and PWM status + */ +void setPinModeCallback(byte pin, int mode) +{ + if (pinConfig[pin] == I2C && isI2CEnabled && mode != I2C) { + // disable i2c so pins can be used for other functions + // the following if statements should reconfigure the pins properly + disableI2CPins(); + } + if (IS_PIN_SERVO(pin) && mode != SERVO && servos[PIN_TO_SERVO(pin)].attached()) { + servos[PIN_TO_SERVO(pin)].detach(); + } + if (IS_PIN_ANALOG(pin)) { + reportAnalogCallback(PIN_TO_ANALOG(pin), mode == ANALOG ? 1 : 0); // turn on/off reporting + } + if (IS_PIN_DIGITAL(pin)) { + if (mode == INPUT) { + portConfigInputs[pin/8] |= (1 << (pin & 7)); + } else { + portConfigInputs[pin/8] &= ~(1 << (pin & 7)); + } + } + pinState[pin] = 0; + switch(mode) { + case ANALOG: + if (IS_PIN_ANALOG(pin)) { + if (IS_PIN_DIGITAL(pin)) { + pinMode(PIN_TO_DIGITAL(pin), INPUT); // disable output driver + digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups + } + pinConfig[pin] = ANALOG; + } + break; + case INPUT: + if (IS_PIN_DIGITAL(pin)) { + pinMode(PIN_TO_DIGITAL(pin), INPUT); // disable output driver + digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups + pinConfig[pin] = INPUT; + } + break; + case OUTPUT: + if (IS_PIN_DIGITAL(pin)) { + digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable PWM + pinMode(PIN_TO_DIGITAL(pin), OUTPUT); + pinConfig[pin] = OUTPUT; + } + break; + case PWM: + if (IS_PIN_PWM(pin)) { + pinMode(PIN_TO_PWM(pin), OUTPUT); + analogWrite(PIN_TO_PWM(pin), 0); + pinConfig[pin] = PWM; + } + break; + case SERVO: + if (IS_PIN_SERVO(pin)) { + pinConfig[pin] = SERVO; + if (!servos[PIN_TO_SERVO(pin)].attached()) { + servos[PIN_TO_SERVO(pin)].attach(PIN_TO_DIGITAL(pin)); + } + } + break; + case I2C: + if (IS_PIN_I2C(pin)) { + // mark the pin as i2c + // the user must call I2C_CONFIG to enable I2C for a device + pinConfig[pin] = I2C; + } + break; + default: + Firmata.sendString("Unknown pin mode"); // TODO: put error msgs in EEPROM + } + // TODO: save status to EEPROM here, if changed +} + +void analogWriteCallback(byte pin, int value) +{ + if (pin < TOTAL_PINS) { + switch(pinConfig[pin]) { + case SERVO: + if (IS_PIN_SERVO(pin)) + servos[PIN_TO_SERVO(pin)].write(value); + pinState[pin] = value; + break; + case PWM: + if (IS_PIN_PWM(pin)) + analogWrite(PIN_TO_PWM(pin), value); + pinState[pin] = value; + break; + } + } +} + +void digitalWriteCallback(byte port, int value) +{ + byte pin, lastPin, mask=1, pinWriteMask=0; + + if (port < TOTAL_PORTS) { + // create a mask of the pins on this port that are writable. + lastPin = port*8+8; + if (lastPin > TOTAL_PINS) lastPin = TOTAL_PINS; + for (pin=port*8; pin < lastPin; pin++) { + // do not disturb non-digital pins (eg, Rx & Tx) + if (IS_PIN_DIGITAL(pin)) { + // only write to OUTPUT and INPUT (enables pullup) + // do not touch pins in PWM, ANALOG, SERVO or other modes + if (pinConfig[pin] == OUTPUT || pinConfig[pin] == INPUT) { + pinWriteMask |= mask; + pinState[pin] = ((byte)value & mask) ? 1 : 0; + } + } + mask = mask << 1; + } + writePort(port, (byte)value, pinWriteMask); + } +} + + +// ----------------------------------------------------------------------------- +/* sets bits in a bit array (int) to toggle the reporting of the analogIns + */ +//void FirmataClass::setAnalogPinReporting(byte pin, byte state) { +//} +void reportAnalogCallback(byte analogPin, int value) +{ + if (analogPin < TOTAL_ANALOG_PINS) { + if(value == 0) { + analogInputsToReport = analogInputsToReport &~ (1 << analogPin); + } else { + analogInputsToReport = analogInputsToReport | (1 << analogPin); + } + } + // TODO: save status to EEPROM here, if changed +} + +void reportDigitalCallback(byte port, int value) +{ + if (port < TOTAL_PORTS) { + reportPINs[port] = (byte)value; + } + // do not disable analog reporting on these 8 pins, to allow some + // pins used for digital, others analog. Instead, allow both types + // of reporting to be enabled, but check if the pin is configured + // as analog when sampling the analog inputs. Likewise, while + // scanning digital pins, portConfigInputs will mask off values from any + // pins configured as analog +} + +/*============================================================================== + * SYSEX-BASED commands + *============================================================================*/ + +void sysexCallback(byte command, byte argc, byte *argv) +{ + byte mode; + byte slaveAddress; + byte slaveRegister; + byte data; + unsigned int delayTime; + + switch(command) { + case I2C_REQUEST: + mode = argv[1] & I2C_READ_WRITE_MODE_MASK; + if (argv[1] & I2C_10BIT_ADDRESS_MODE_MASK) { + Firmata.sendString("10-bit addressing mode is not yet supported"); + return; + } + else { + slaveAddress = argv[0]; + } + + switch(mode) { + case I2C_WRITE: + Wire.beginTransmission(slaveAddress); + for (byte i = 2; i < argc; i += 2) { + data = argv[i] + (argv[i + 1] << 7); + #if ARDUINO >= 100 + Wire.write(data); + #else + Wire.send(data); + #endif + } + Wire.endTransmission(); + delayMicroseconds(70); + break; + case I2C_READ: + if (argc == 6) { + // a slave register is specified + slaveRegister = argv[2] + (argv[3] << 7); + data = argv[4] + (argv[5] << 7); // bytes to read + readAndReportData(slaveAddress, (int)slaveRegister, data); + } + else { + // a slave register is NOT specified + data = argv[2] + (argv[3] << 7); // bytes to read + readAndReportData(slaveAddress, (int)REGISTER_NOT_SPECIFIED, data); + } + break; + case I2C_READ_CONTINUOUSLY: + if ((queryIndex + 1) >= MAX_QUERIES) { + // too many queries, just ignore + Firmata.sendString("too many queries"); + break; + } + queryIndex++; + query[queryIndex].addr = slaveAddress; + query[queryIndex].reg = argv[2] + (argv[3] << 7); + query[queryIndex].bytes = argv[4] + (argv[5] << 7); + break; + case I2C_STOP_READING: + byte queryIndexToSkip; + // if read continuous mode is enabled for only 1 i2c device, disable + // read continuous reporting for that device + if (queryIndex <= 0) { + queryIndex = -1; + } else { + // if read continuous mode is enabled for multiple devices, + // determine which device to stop reading and remove it's data from + // the array, shifiting other array data to fill the space + for (byte i = 0; i < queryIndex + 1; i++) { + if (query[i].addr = slaveAddress) { + queryIndexToSkip = i; + break; + } + } + + for (byte i = queryIndexToSkip; i<queryIndex + 1; i++) { + if (i < MAX_QUERIES) { + query[i].addr = query[i+1].addr; + query[i].reg = query[i+1].addr; + query[i].bytes = query[i+1].bytes; + } + } + queryIndex--; + } + break; + default: + break; + } + break; + case I2C_CONFIG: + delayTime = (argv[0] + (argv[1] << 7)); + + if(delayTime > 0) { + i2cReadDelayTime = delayTime; + } + + if (!isI2CEnabled) { + enableI2CPins(); + } + + break; + case SERVO_CONFIG: + if(argc > 4) { + // these vars are here for clarity, they'll optimized away by the compiler + byte pin = argv[0]; + int minPulse = argv[1] + (argv[2] << 7); + int maxPulse = argv[3] + (argv[4] << 7); + + if (IS_PIN_SERVO(pin)) { + if (servos[PIN_TO_SERVO(pin)].attached()) + servos[PIN_TO_SERVO(pin)].detach(); + servos[PIN_TO_SERVO(pin)].attach(PIN_TO_DIGITAL(pin), minPulse, maxPulse); + setPinModeCallback(pin, SERVO); + } + } + break; + case SAMPLING_INTERVAL: + if (argc > 1) { + samplingInterval = argv[0] + (argv[1] << 7); + if (samplingInterval < MINIMUM_SAMPLING_INTERVAL) { + samplingInterval = MINIMUM_SAMPLING_INTERVAL; + } + } else { + //Firmata.sendString("Not enough data"); + } + break; + case EXTENDED_ANALOG: + if (argc > 1) { + int val = argv[1]; + if (argc > 2) val |= (argv[2] << 7); + if (argc > 3) val |= (argv[3] << 14); + analogWriteCallback(argv[0], val); + } + break; + case CAPABILITY_QUERY: + Serial.write(START_SYSEX); + Serial.write(CAPABILITY_RESPONSE); + for (byte pin=0; pin < TOTAL_PINS; pin++) { + if (IS_PIN_DIGITAL(pin)) { + Serial.write((byte)INPUT); + Serial.write(1); + Serial.write((byte)OUTPUT); + Serial.write(1); + } + if (IS_PIN_ANALOG(pin)) { + Serial.write(ANALOG); + Serial.write(10); + } + if (IS_PIN_PWM(pin)) { + Serial.write(PWM); + Serial.write(8); + } + if (IS_PIN_SERVO(pin)) { + Serial.write(SERVO); + Serial.write(14); + } + if (IS_PIN_I2C(pin)) { + Serial.write(I2C); + Serial.write(1); // to do: determine appropriate value + } + Serial.write(127); + } + Serial.write(END_SYSEX); + break; + case PIN_STATE_QUERY: + if (argc > 0) { + byte pin=argv[0]; + Serial.write(START_SYSEX); + Serial.write(PIN_STATE_RESPONSE); + Serial.write(pin); + if (pin < TOTAL_PINS) { + Serial.write((byte)pinConfig[pin]); + Serial.write((byte)pinState[pin] & 0x7F); + if (pinState[pin] & 0xFF80) Serial.write((byte)(pinState[pin] >> 7) & 0x7F); + if (pinState[pin] & 0xC000) Serial.write((byte)(pinState[pin] >> 14) & 0x7F); + } + Serial.write(END_SYSEX); + } + break; + case ANALOG_MAPPING_QUERY: + Serial.write(START_SYSEX); + Serial.write(ANALOG_MAPPING_RESPONSE); + for (byte pin=0; pin < TOTAL_PINS; pin++) { + Serial.write(IS_PIN_ANALOG(pin) ? PIN_TO_ANALOG(pin) : 127); + } + Serial.write(END_SYSEX); + break; + } +} + +void enableI2CPins() +{ + byte i; + // is there a faster way to do this? would probaby require importing + // Arduino.h to get SCL and SDA pins + for (i=0; i < TOTAL_PINS; i++) { + if(IS_PIN_I2C(i)) { + // mark pins as i2c so they are ignore in non i2c data requests + setPinModeCallback(i, I2C); + } + } + + isI2CEnabled = true; + + // is there enough time before the first I2C request to call this here? + Wire.begin(); +} + +/* disable the i2c pins so they can be used for other functions */ +void disableI2CPins() { + isI2CEnabled = false; + // disable read continuous mode for all devices + queryIndex = -1; + // uncomment the following if or when the end() method is added to Wire library + // Wire.end(); +} + +/*============================================================================== + * SETUP() + *============================================================================*/ + +void systemResetCallback() +{ + // initialize a defalt state + // TODO: option to load config from EEPROM instead of default + if (isI2CEnabled) { + disableI2CPins(); + } + for (byte i=0; i < TOTAL_PORTS; i++) { + reportPINs[i] = false; // by default, reporting off + portConfigInputs[i] = 0; // until activated + previousPINs[i] = 0; + } + // pins with analog capability default to analog input + // otherwise, pins default to digital output + for (byte i=0; i < TOTAL_PINS; i++) { + if (IS_PIN_ANALOG(i)) { + // turns off pullup, configures everything + setPinModeCallback(i, ANALOG); + } else { + // sets the output to 0, configures portConfigInputs + setPinModeCallback(i, OUTPUT); + } + } + // by default, do not report any analog inputs + analogInputsToReport = 0; + + /* send digital inputs to set the initial state on the host computer, + * since once in the loop(), this firmware will only send on change */ + /* + TODO: this can never execute, since no pins default to digital input + but it will be needed when/if we support EEPROM stored config + for (byte i=0; i < TOTAL_PORTS; i++) { + outputPort(i, readPort(i, portConfigInputs[i]), true); + } + */ +} + +void setup() +{ + Firmata.setFirmwareVersion(FIRMATA_MAJOR_VERSION, FIRMATA_MINOR_VERSION); + + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback); + Firmata.attach(REPORT_ANALOG, reportAnalogCallback); + Firmata.attach(REPORT_DIGITAL, reportDigitalCallback); + Firmata.attach(SET_PIN_MODE, setPinModeCallback); + Firmata.attach(START_SYSEX, sysexCallback); + Firmata.attach(SYSTEM_RESET, systemResetCallback); + + Firmata.begin(57600); + systemResetCallback(); // reset to default config +} + +/*============================================================================== + * LOOP() + *============================================================================*/ +void loop() +{ + byte pin, analogPin; + + /* DIGITALREAD - as fast as possible, check for changes and output them to the + * FTDI buffer using Serial.print() */ + checkDigitalInputs(); + + /* SERIALREAD - processing incoming messagse as soon as possible, while still + * checking digital inputs. */ + while(Firmata.available()) + Firmata.processInput(); + + /* SEND FTDI WRITE BUFFER - make sure that the FTDI buffer doesn't go over + * 60 bytes. use a timer to sending an event character every 4 ms to + * trigger the buffer to dump. */ + + currentMillis = millis(); + if (currentMillis - previousMillis > samplingInterval) { + previousMillis += samplingInterval; + /* ANALOGREAD - do all analogReads() at the configured sampling interval */ + for(pin=0; pin<TOTAL_PINS; pin++) { + if (IS_PIN_ANALOG(pin) && pinConfig[pin] == ANALOG) { + analogPin = PIN_TO_ANALOG(pin); + if (analogInputsToReport & (1 << analogPin)) { + Firmata.sendAnalog(analogPin, analogRead(analogPin)); + } + } + } + // report i2c data for all device with read continuous mode enabled + if (queryIndex > -1) { + for (byte i = 0; i < queryIndex + 1; i++) { + readAndReportData(query[i].addr, query[i].reg, query[i].bytes); + } + } + } +} diff --git a/libraries/Firmata/keywords.txt b/libraries/Firmata/keywords.txt new file mode 100644 index 0000000..52e0a9c --- /dev/null +++ b/libraries/Firmata/keywords.txt @@ -0,0 +1,62 @@ +####################################### +# Syntax Coloring Map For Firmata +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +Firmata KEYWORD1 +callbackFunction KEYWORD1 +systemResetCallbackFunction KEYWORD1 +stringCallbackFunction KEYWORD1 +sysexCallbackFunction KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### + +begin KEYWORD2 +begin KEYWORD2 +printVersion KEYWORD2 +blinkVersion KEYWORD2 +printFirmwareVersion KEYWORD2 +setFirmwareVersion KEYWORD2 +setFirmwareNameAndVersion KEYWORD2 +available KEYWORD2 +processInput KEYWORD2 +sendAnalog KEYWORD2 +sendDigital KEYWORD2 +sendDigitalPortPair KEYWORD2 +sendDigitalPort KEYWORD2 +sendString KEYWORD2 +sendString KEYWORD2 +sendSysex KEYWORD2 +attach KEYWORD2 +detach KEYWORD2 +flush KEYWORD2 + + +####################################### +# Constants (LITERAL1) +####################################### + +MAX_DATA_BYTES LITERAL1 + +DIGITAL_MESSAGE LITERAL1 +ANALOG_MESSAGE LITERAL1 +REPORT_ANALOG LITERAL1 +REPORT_DIGITAL LITERAL1 +REPORT_VERSION LITERAL1 +SET_PIN_MODE LITERAL1 +SYSTEM_RESET LITERAL1 + +START_SYSEX LITERAL1 +END_SYSEX LITERAL1 + +PWM LITERAL1 + +TOTAL_ANALOG_PINS LITERAL1 +TOTAL_DIGITAL_PINS LITERAL1 +TOTAL_PORTS LITERAL1 +ANALOG_PORT LITERAL1 diff --git a/libraries/LiquidCrystal/LiquidCrystal.cpp b/libraries/LiquidCrystal/LiquidCrystal.cpp new file mode 100644 index 0000000..0653487 --- /dev/null +++ b/libraries/LiquidCrystal/LiquidCrystal.cpp @@ -0,0 +1,310 @@ +#include "LiquidCrystal.h" + +#include <stdio.h> +#include <string.h> +#include <inttypes.h> +#include "Arduino.h" + +// When the display powers up, it is configured as follows: +// +// 1. Display clear +// 2. Function set: +// DL = 1; 8-bit interface data +// N = 0; 1-line display +// F = 0; 5x8 dot character font +// 3. Display on/off control: +// D = 0; Display off +// C = 0; Cursor off +// B = 0; Blinking off +// 4. Entry mode set: +// I/D = 1; Increment by 1 +// S = 0; No shift +// +// Note, however, that resetting the Arduino doesn't reset the LCD, so we +// can't assume that its in that state when a sketch starts (and the +// LiquidCrystal constructor is called). + +LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) +{ + init(0, rs, rw, enable, d0, d1, d2, d3, d4, d5, d6, d7); +} + +LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) +{ + init(0, rs, 255, enable, d0, d1, d2, d3, d4, d5, d6, d7); +} + +LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) +{ + init(1, rs, rw, enable, d0, d1, d2, d3, 0, 0, 0, 0); +} + +LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) +{ + init(1, rs, 255, enable, d0, d1, d2, d3, 0, 0, 0, 0); +} + +void LiquidCrystal::init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) +{ + _rs_pin = rs; + _rw_pin = rw; + _enable_pin = enable; + + _data_pins[0] = d0; + _data_pins[1] = d1; + _data_pins[2] = d2; + _data_pins[3] = d3; + _data_pins[4] = d4; + _data_pins[5] = d5; + _data_pins[6] = d6; + _data_pins[7] = d7; + + pinMode(_rs_pin, OUTPUT); + // we can save 1 pin by not using RW. Indicate by passing 255 instead of pin# + if (_rw_pin != 255) { + pinMode(_rw_pin, OUTPUT); + } + pinMode(_enable_pin, OUTPUT); + + if (fourbitmode) + _displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS; + else + _displayfunction = LCD_8BITMODE | LCD_1LINE | LCD_5x8DOTS; + + begin(16, 1); +} + +void LiquidCrystal::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) { + if (lines > 1) { + _displayfunction |= LCD_2LINE; + } + _numlines = lines; + _currline = 0; + + // for some 1 line displays you can select a 10 pixel high font + if ((dotsize != 0) && (lines == 1)) { + _displayfunction |= LCD_5x10DOTS; + } + + // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION! + // according to datasheet, we need at least 40ms after power rises above 2.7V + // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50 + delayMicroseconds(50000); + // Now we pull both RS and R/W low to begin commands + digitalWrite(_rs_pin, LOW); + digitalWrite(_enable_pin, LOW); + if (_rw_pin != 255) { + digitalWrite(_rw_pin, LOW); + } + + //put the LCD into 4 bit or 8 bit mode + if (! (_displayfunction & LCD_8BITMODE)) { + // this is according to the hitachi HD44780 datasheet + // figure 24, pg 46 + + // we start in 8bit mode, try to set 4 bit mode + write4bits(0x03); + delayMicroseconds(4500); // wait min 4.1ms + + // second try + write4bits(0x03); + delayMicroseconds(4500); // wait min 4.1ms + + // third go! + write4bits(0x03); + delayMicroseconds(150); + + // finally, set to 4-bit interface + write4bits(0x02); + } else { + // this is according to the hitachi HD44780 datasheet + // page 45 figure 23 + + // Send function set command sequence + command(LCD_FUNCTIONSET | _displayfunction); + delayMicroseconds(4500); // wait more than 4.1ms + + // second try + command(LCD_FUNCTIONSET | _displayfunction); + delayMicroseconds(150); + + // third go + command(LCD_FUNCTIONSET | _displayfunction); + } + + // finally, set # lines, font size, etc. + command(LCD_FUNCTIONSET | _displayfunction); + + // turn the display on with no cursor or blinking default + _displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF; + display(); + + // clear it off + clear(); + + // Initialize to default text direction (for romance languages) + _displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT; + // set the entry mode + command(LCD_ENTRYMODESET | _displaymode); + +} + +/********** high level commands, for the user! */ +void LiquidCrystal::clear() +{ + command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero + delayMicroseconds(2000); // this command takes a long time! +} + +void LiquidCrystal::home() +{ + command(LCD_RETURNHOME); // set cursor position to zero + delayMicroseconds(2000); // this command takes a long time! +} + +void LiquidCrystal::setCursor(uint8_t col, uint8_t row) +{ + int row_offsets[] = { 0x00, 0x40, 0x14, 0x54 }; + if ( row >= _numlines ) { + row = _numlines-1; // we count rows starting w/0 + } + + command(LCD_SETDDRAMADDR | (col + row_offsets[row])); +} + +// Turn the display on/off (quickly) +void LiquidCrystal::noDisplay() { + _displaycontrol &= ~LCD_DISPLAYON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} +void LiquidCrystal::display() { + _displaycontrol |= LCD_DISPLAYON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} + +// Turns the underline cursor on/off +void LiquidCrystal::noCursor() { + _displaycontrol &= ~LCD_CURSORON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} +void LiquidCrystal::cursor() { + _displaycontrol |= LCD_CURSORON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} + +// Turn on and off the blinking cursor +void LiquidCrystal::noBlink() { + _displaycontrol &= ~LCD_BLINKON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} +void LiquidCrystal::blink() { + _displaycontrol |= LCD_BLINKON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} + +// These commands scroll the display without changing the RAM +void LiquidCrystal::scrollDisplayLeft(void) { + command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT); +} +void LiquidCrystal::scrollDisplayRight(void) { + command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT); +} + +// This is for text that flows Left to Right +void LiquidCrystal::leftToRight(void) { + _displaymode |= LCD_ENTRYLEFT; + command(LCD_ENTRYMODESET | _displaymode); +} + +// This is for text that flows Right to Left +void LiquidCrystal::rightToLeft(void) { + _displaymode &= ~LCD_ENTRYLEFT; + command(LCD_ENTRYMODESET | _displaymode); +} + +// This will 'right justify' text from the cursor +void LiquidCrystal::autoscroll(void) { + _displaymode |= LCD_ENTRYSHIFTINCREMENT; + command(LCD_ENTRYMODESET | _displaymode); +} + +// This will 'left justify' text from the cursor +void LiquidCrystal::noAutoscroll(void) { + _displaymode &= ~LCD_ENTRYSHIFTINCREMENT; + command(LCD_ENTRYMODESET | _displaymode); +} + +// Allows us to fill the first 8 CGRAM locations +// with custom characters +void LiquidCrystal::createChar(uint8_t location, uint8_t charmap[]) { + location &= 0x7; // we only have 8 locations 0-7 + command(LCD_SETCGRAMADDR | (location << 3)); + for (int i=0; i<8; i++) { + write(charmap[i]); + } +} + +/*********** mid level commands, for sending data/cmds */ + +inline void LiquidCrystal::command(uint8_t value) { + send(value, LOW); +} + +inline size_t LiquidCrystal::write(uint8_t value) { + send(value, HIGH); + return 1; // assume sucess +} + +/************ low level data pushing commands **********/ + +// write either command or data, with automatic 4/8-bit selection +void LiquidCrystal::send(uint8_t value, uint8_t mode) { + digitalWrite(_rs_pin, mode); + + // if there is a RW pin indicated, set it low to Write + if (_rw_pin != 255) { + digitalWrite(_rw_pin, LOW); + } + + if (_displayfunction & LCD_8BITMODE) { + write8bits(value); + } else { + write4bits(value>>4); + write4bits(value); + } +} + +void LiquidCrystal::pulseEnable(void) { + digitalWrite(_enable_pin, LOW); + delayMicroseconds(1); + digitalWrite(_enable_pin, HIGH); + delayMicroseconds(1); // enable pulse must be >450ns + digitalWrite(_enable_pin, LOW); + delayMicroseconds(100); // commands need > 37us to settle +} + +void LiquidCrystal::write4bits(uint8_t value) { + for (int i = 0; i < 4; i++) { + pinMode(_data_pins[i], OUTPUT); + digitalWrite(_data_pins[i], (value >> i) & 0x01); + } + + pulseEnable(); +} + +void LiquidCrystal::write8bits(uint8_t value) { + for (int i = 0; i < 8; i++) { + pinMode(_data_pins[i], OUTPUT); + digitalWrite(_data_pins[i], (value >> i) & 0x01); + } + + pulseEnable(); +} diff --git a/libraries/LiquidCrystal/LiquidCrystal.h b/libraries/LiquidCrystal/LiquidCrystal.h new file mode 100755 index 0000000..24ec5af --- /dev/null +++ b/libraries/LiquidCrystal/LiquidCrystal.h @@ -0,0 +1,106 @@ +#ifndef LiquidCrystal_h +#define LiquidCrystal_h + +#include <inttypes.h> +#include "Print.h" + +// commands +#define LCD_CLEARDISPLAY 0x01 +#define LCD_RETURNHOME 0x02 +#define LCD_ENTRYMODESET 0x04 +#define LCD_DISPLAYCONTROL 0x08 +#define LCD_CURSORSHIFT 0x10 +#define LCD_FUNCTIONSET 0x20 +#define LCD_SETCGRAMADDR 0x40 +#define LCD_SETDDRAMADDR 0x80 + +// flags for display entry mode +#define LCD_ENTRYRIGHT 0x00 +#define LCD_ENTRYLEFT 0x02 +#define LCD_ENTRYSHIFTINCREMENT 0x01 +#define LCD_ENTRYSHIFTDECREMENT 0x00 + +// flags for display on/off control +#define LCD_DISPLAYON 0x04 +#define LCD_DISPLAYOFF 0x00 +#define LCD_CURSORON 0x02 +#define LCD_CURSOROFF 0x00 +#define LCD_BLINKON 0x01 +#define LCD_BLINKOFF 0x00 + +// flags for display/cursor shift +#define LCD_DISPLAYMOVE 0x08 +#define LCD_CURSORMOVE 0x00 +#define LCD_MOVERIGHT 0x04 +#define LCD_MOVELEFT 0x00 + +// flags for function set +#define LCD_8BITMODE 0x10 +#define LCD_4BITMODE 0x00 +#define LCD_2LINE 0x08 +#define LCD_1LINE 0x00 +#define LCD_5x10DOTS 0x04 +#define LCD_5x8DOTS 0x00 + +class LiquidCrystal : public Print { +public: + LiquidCrystal(uint8_t rs, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); + LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); + LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3); + LiquidCrystal(uint8_t rs, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3); + + void init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); + + void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS); + + void clear(); + void home(); + + void noDisplay(); + void display(); + void noBlink(); + void blink(); + void noCursor(); + void cursor(); + void scrollDisplayLeft(); + void scrollDisplayRight(); + void leftToRight(); + void rightToLeft(); + void autoscroll(); + void noAutoscroll(); + + void createChar(uint8_t, uint8_t[]); + void setCursor(uint8_t, uint8_t); + virtual size_t write(uint8_t); + void command(uint8_t); + + using Print::write; +private: + void send(uint8_t, uint8_t); + void write4bits(uint8_t); + void write8bits(uint8_t); + void pulseEnable(); + + uint8_t _rs_pin; // LOW: command. HIGH: character. + uint8_t _rw_pin; // LOW: write to LCD. HIGH: read from LCD. + uint8_t _enable_pin; // activated by a HIGH pulse. + uint8_t _data_pins[8]; + + uint8_t _displayfunction; + uint8_t _displaycontrol; + uint8_t _displaymode; + + uint8_t _initialized; + + uint8_t _numlines,_currline; +}; + +#endif diff --git a/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.ino b/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.ino new file mode 100644 index 0000000..27123ad --- /dev/null +++ b/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.ino @@ -0,0 +1,73 @@ +/* + LiquidCrystal Library - Autoscroll + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch demonstrates the use of the autoscroll() + and noAutoscroll() functions to make new text scroll or not. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup() { + // set up the LCD's number of columns and rows: + lcd.begin(16,2); +} + +void loop() { + // set the cursor to (0,0): + lcd.setCursor(0, 0); + // print from 0 to 9: + for (int thisChar = 0; thisChar < 10; thisChar++) { + lcd.print(thisChar); + delay(500); + } + + // set the cursor to (16,1): + lcd.setCursor(16,1); + // set the display to automatically scroll: + lcd.autoscroll(); + // print from 0 to 9: + for (int thisChar = 0; thisChar < 10; thisChar++) { + lcd.print(thisChar); + delay(500); + } + // turn off automatic scrolling + lcd.noAutoscroll(); + + // clear screen for the next loop: + lcd.clear(); +} + diff --git a/libraries/LiquidCrystal/examples/Blink/Blink.ino b/libraries/LiquidCrystal/examples/Blink/Blink.ino new file mode 100644 index 0000000..e410424 --- /dev/null +++ b/libraries/LiquidCrystal/examples/Blink/Blink.ino @@ -0,0 +1,61 @@ +/* + LiquidCrystal Library - Blink + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch prints "Hello World!" to the LCD and makes the + cursor block blink. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup() { + // set up the LCD's number of columns and rows: + lcd.begin(16, 2); + // Print a message to the LCD. + lcd.print("hello, world!"); +} + +void loop() { + // Turn off the blinking cursor: + lcd.noBlink(); + delay(3000); + // Turn on the blinking cursor: + lcd.blink(); + delay(3000); +} + + diff --git a/libraries/LiquidCrystal/examples/Cursor/Cursor.ino b/libraries/LiquidCrystal/examples/Cursor/Cursor.ino new file mode 100644 index 0000000..28e2a6a --- /dev/null +++ b/libraries/LiquidCrystal/examples/Cursor/Cursor.ino @@ -0,0 +1,60 @@ +/* + LiquidCrystal Library - Cursor + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch prints "Hello World!" to the LCD and + uses the cursor() and noCursor() methods to turn + on and off the cursor. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup() { + // set up the LCD's number of columns and rows: + lcd.begin(16, 2); + // Print a message to the LCD. + lcd.print("hello, world!"); +} + +void loop() { + // Turn off the cursor: + lcd.noCursor(); + delay(500); + // Turn on the cursor: + lcd.cursor(); + delay(500); +} + diff --git a/libraries/LiquidCrystal/examples/CustomCharacter/CustomCharacter.ino b/libraries/LiquidCrystal/examples/CustomCharacter/CustomCharacter.ino new file mode 100644 index 0000000..d3ce479 --- /dev/null +++ b/libraries/LiquidCrystal/examples/CustomCharacter/CustomCharacter.ino @@ -0,0 +1,138 @@ +/* + LiquidCrystal Library - Custom Characters + + Demonstrates how to add custom characters on an LCD display. + The LiquidCrystal library works with all LCD displays that are + compatible with the Hitachi HD44780 driver. There are many of + them out there, and you can usually tell them by the 16-pin interface. + + This sketch prints "I <heart> Arduino!" and a little dancing man + to the LCD. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K potentiometer: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + * 10K poterntiometer on pin A0 + + created21 Mar 2011 + by Tom Igoe + Based on Adafruit's example at + https://github.com/adafruit/SPI_VFD/blob/master/examples/createChar/createChar.pde + + This example code is in the public domain. + http://www.arduino.cc/en/Tutorial/LiquidCrystal + + Also useful: + http://icontexto.com/charactercreator/ + + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +// make some custom characters: +byte heart[8] = { + 0b00000, + 0b01010, + 0b11111, + 0b11111, + 0b11111, + 0b01110, + 0b00100, + 0b00000 +}; + +byte smiley[8] = { + 0b00000, + 0b00000, + 0b01010, + 0b00000, + 0b00000, + 0b10001, + 0b01110, + 0b00000 +}; + +byte frownie[8] = { + 0b00000, + 0b00000, + 0b01010, + 0b00000, + 0b00000, + 0b00000, + 0b01110, + 0b10001 +}; + +byte armsDown[8] = { + 0b00100, + 0b01010, + 0b00100, + 0b00100, + 0b01110, + 0b10101, + 0b00100, + 0b01010 +}; + +byte armsUp[8] = { + 0b00100, + 0b01010, + 0b00100, + 0b10101, + 0b01110, + 0b00100, + 0b00100, + 0b01010 +}; +void setup() { + // create a new character + lcd.createChar(0, heart); + // create a new character + lcd.createChar(1, smiley); + // create a new character + lcd.createChar(2, frownie); + // create a new character + lcd.createChar(3, armsDown); + // create a new character + lcd.createChar(4, armsUp); + + // set up the lcd's number of columns and rows: + lcd.begin(16, 2); + // Print a message to the lcd. + lcd.print("I "); + lcd.write(0); + lcd.print(" Arduino! "); + lcd.write(1); + +} + +void loop() { + // read the potentiometer on A0: + int sensorReading = analogRead(A0); + // map the result to 200 - 1000: + int delayTime = map(sensorReading, 0, 1023, 200, 1000); + // set the cursor to the bottom row, 5th position: + lcd.setCursor(4, 1); + // draw the little man, arms down: + lcd.write(3); + delay(delayTime); + lcd.setCursor(4, 1); + // draw him arms up: + lcd.write(4); + delay(delayTime); +} + + + diff --git a/libraries/LiquidCrystal/examples/Display/Display.ino b/libraries/LiquidCrystal/examples/Display/Display.ino new file mode 100644 index 0000000..b000731 --- /dev/null +++ b/libraries/LiquidCrystal/examples/Display/Display.ino @@ -0,0 +1,60 @@ +/* + LiquidCrystal Library - display() and noDisplay() + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch prints "Hello World!" to the LCD and uses the + display() and noDisplay() functions to turn on and off + the display. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup() { + // set up the LCD's number of columns and rows: + lcd.begin(16, 2); + // Print a message to the LCD. + lcd.print("hello, world!"); +} + +void loop() { + // Turn off the display: + lcd.noDisplay(); + delay(500); + // Turn on the display: + lcd.display(); + delay(500); +} + diff --git a/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.ino b/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.ino new file mode 100644 index 0000000..e99957d --- /dev/null +++ b/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.ino @@ -0,0 +1,58 @@ +/* + LiquidCrystal Library - Hello World + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch prints "Hello World!" to the LCD + and shows the time. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup() { + // set up the LCD's number of columns and rows: + lcd.begin(16, 2); + // Print a message to the LCD. + lcd.print("hello, world!"); +} + +void loop() { + // set the cursor to column 0, line 1 + // (note: line 1 is the second row, since counting begins with 0): + lcd.setCursor(0, 1); + // print the number of seconds since reset: + lcd.print(millis()/1000); +} + diff --git a/libraries/LiquidCrystal/examples/Scroll/Scroll.ino b/libraries/LiquidCrystal/examples/Scroll/Scroll.ino new file mode 100644 index 0000000..71e5e8c --- /dev/null +++ b/libraries/LiquidCrystal/examples/Scroll/Scroll.ino @@ -0,0 +1,85 @@ +/* + LiquidCrystal Library - scrollDisplayLeft() and scrollDisplayRight() + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch prints "Hello World!" to the LCD and uses the + scrollDisplayLeft() and scrollDisplayRight() methods to scroll + the text. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup() { + // set up the LCD's number of columns and rows: + lcd.begin(16, 2); + // Print a message to the LCD. + lcd.print("hello, world!"); + delay(1000); +} + +void loop() { + // scroll 13 positions (string length) to the left + // to move it offscreen left: + for (int positionCounter = 0; positionCounter < 13; positionCounter++) { + // scroll one position left: + lcd.scrollDisplayLeft(); + // wait a bit: + delay(150); + } + + // scroll 29 positions (string length + display length) to the right + // to move it offscreen right: + for (int positionCounter = 0; positionCounter < 29; positionCounter++) { + // scroll one position right: + lcd.scrollDisplayRight(); + // wait a bit: + delay(150); + } + + // scroll 16 positions (display length + string length) to the left + // to move it back to center: + for (int positionCounter = 0; positionCounter < 16; positionCounter++) { + // scroll one position left: + lcd.scrollDisplayLeft(); + // wait a bit: + delay(150); + } + + // delay at the end of the full loop: + delay(1000); + +} + diff --git a/libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.ino b/libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.ino new file mode 100644 index 0000000..9727cee --- /dev/null +++ b/libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.ino @@ -0,0 +1,65 @@ +/* + LiquidCrystal Library - Serial Input + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch displays text sent over the serial port + (e.g. from the Serial Monitor) on an attached LCD. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup(){ + // set up the LCD's number of columns and rows: + lcd.begin(16, 2); + // initialize the serial communications: + Serial.begin(9600); +} + +void loop() +{ + // when characters arrive over the serial port... + if (Serial.available()) { + // wait a bit for the entire message to arrive + delay(100); + // clear the screen + lcd.clear(); + // read all the available characters + while (Serial.available() > 0) { + // display each character to the LCD + lcd.write(Serial.read()); + } + } +} diff --git a/libraries/LiquidCrystal/examples/TextDirection/TextDirection.ino b/libraries/LiquidCrystal/examples/TextDirection/TextDirection.ino new file mode 100644 index 0000000..51bab1f --- /dev/null +++ b/libraries/LiquidCrystal/examples/TextDirection/TextDirection.ino @@ -0,0 +1,87 @@ + /* + LiquidCrystal Library - TextDirection + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch demonstrates how to use leftToRight() and rightToLeft() + to move the cursor. + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +int thisChar = 'a'; + +void setup() { + // set up the LCD's number of columns and rows: + lcd.begin(16, 2); + // turn on the cursor: + lcd.cursor(); + Serial.begin(9600); +} + +void loop() { + // reverse directions at 'm': + if (thisChar == 'm') { + // go right for the next letter + lcd.rightToLeft(); + } + // reverse again at 's': + if (thisChar == 's') { + // go left for the next letter + lcd.leftToRight(); + } + // reset at 'z': + if (thisChar > 'z') { + // go to (0,0): + lcd.home(); + // start again at 0 + thisChar = 'a'; + } + // print the character + lcd.write(thisChar); + // wait a second: + delay(1000); + // increment the letter: + thisChar++; +} + + + + + + + + diff --git a/libraries/LiquidCrystal/examples/setCursor/setCursor.ino b/libraries/LiquidCrystal/examples/setCursor/setCursor.ino new file mode 100644 index 0000000..3c4edf3 --- /dev/null +++ b/libraries/LiquidCrystal/examples/setCursor/setCursor.ino @@ -0,0 +1,71 @@ +/* + LiquidCrystal Library - setCursor + + Demonstrates the use a 16x2 LCD display. The LiquidCrystal + library works with all LCD displays that are compatible with the + Hitachi HD44780 driver. There are many of them out there, and you + can usually tell them by the 16-pin interface. + + This sketch prints to all the positions of the LCD using the + setCursor(0 method: + + The circuit: + * LCD RS pin to digital pin 12 + * LCD Enable pin to digital pin 11 + * LCD D4 pin to digital pin 5 + * LCD D5 pin to digital pin 4 + * LCD D6 pin to digital pin 3 + * LCD D7 pin to digital pin 2 + * LCD R/W pin to ground + * 10K resistor: + * ends to +5V and ground + * wiper to LCD VO pin (pin 3) + + Library originally added 18 Apr 2008 + by David A. Mellis + library modified 5 Jul 2009 + by Limor Fried (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe + modified 22 Nov 2010 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// these constants won't change. But you can change the size of +// your LCD using them: +const int numRows = 2; +const int numCols = 16; + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup() { + // set up the LCD's number of columns and rows: + lcd.begin(numCols,numRows); +} + +void loop() { + // loop from ASCII 'a' to ASCII 'z': + for (int thisLetter = 'a'; thisLetter <= 'z'; thisLetter++) { + // loop over the columns: + for (int thisCol = 0; thisCol < numRows; thisCol++) { + // loop over the rows: + for (int thisRow = 0; thisRow < numCols; thisRow++) { + // set the cursor position: + lcd.setCursor(thisRow,thisCol); + // print the letter: + lcd.write(thisLetter); + delay(200); + } + } + } +} + + diff --git a/libraries/LiquidCrystal/keywords.txt b/libraries/LiquidCrystal/keywords.txt new file mode 100755 index 0000000..132845c --- /dev/null +++ b/libraries/LiquidCrystal/keywords.txt @@ -0,0 +1,37 @@ +####################################### +# Syntax Coloring Map For LiquidCrystal +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +LiquidCrystal KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### + +begin KEYWORD2 +clear KEYWORD2 +home KEYWORD2 +print KEYWORD2 +setCursor KEYWORD2 +cursor KEYWORD2 +noCursor KEYWORD2 +blink KEYWORD2 +noBlink KEYWORD2 +display KEYWORD2 +noDisplay KEYWORD2 +autoscroll KEYWORD2 +noAutoscroll KEYWORD2 +leftToRight KEYWORD2 +rightToLeft KEYWORD2 +scrollDisplayLeft KEYWORD2 +scrollDisplayRight KEYWORD2 +createChar KEYWORD2 + +####################################### +# Constants (LITERAL1) +####################################### + diff --git a/libraries/SD/File.cpp b/libraries/SD/File.cpp new file mode 100644 index 0000000..88d9e9a --- /dev/null +++ b/libraries/SD/File.cpp @@ -0,0 +1,150 @@ +/* + + SD - a slightly more friendly wrapper for sdfatlib + + This library aims to expose a subset of SD card functionality + in the form of a higher level "wrapper" object. + + License: GNU General Public License V3 + (Because sdfatlib is licensed with this.) + + (C) Copyright 2010 SparkFun Electronics + + */ + +#include <SD.h> + +/* for debugging file open/close leaks + uint8_t nfilecount=0; +*/ + +File::File(SdFile f, const char *n) { + // oh man you are kidding me, new() doesnt exist? Ok we do it by hand! + _file = (SdFile *)malloc(sizeof(SdFile)); + if (_file) { + memcpy(_file, &f, sizeof(SdFile)); + + strncpy(_name, n, 12); + _name[12] = 0; + + /* for debugging file open/close leaks + nfilecount++; + Serial.print("Created \""); + Serial.print(n); + Serial.print("\": "); + Serial.println(nfilecount, DEC); + */ + } +} + +File::File(void) { + _file = 0; + _name[0] = 0; + //Serial.print("Created empty file object"); +} + +File::~File(void) { + // Serial.print("Deleted file object"); +} + +// returns a pointer to the file name +char *File::name(void) { + return _name; +} + +// a directory is a special type of file +boolean File::isDirectory(void) { + return (_file && _file->isDir()); +} + + +size_t File::write(uint8_t val) { + return write(&val, 1); +} + +size_t File::write(const uint8_t *buf, size_t size) { + size_t t; + if (!_file) { + setWriteError(); + return 0; + } + _file->clearWriteError(); + t = _file->write(buf, size); + if (_file->getWriteError()) { + setWriteError(); + return 0; + } + return t; +} + +int File::peek() { + if (! _file) + return 0; + + int c = _file->read(); + if (c != -1) _file->seekCur(-1); + return c; +} + +int File::read() { + if (_file) + return _file->read(); + return -1; +} + +// buffered read for more efficient, high speed reading +int File::read(void *buf, uint16_t nbyte) { + if (_file) + return _file->read(buf, nbyte); + return 0; +} + +int File::available() { + if (! _file) return 0; + + uint32_t n = size() - position(); + + return n > 0X7FFF ? 0X7FFF : n; +} + +void File::flush() { + if (_file) + _file->sync(); +} + +boolean File::seek(uint32_t pos) { + if (! _file) return false; + + return _file->seekSet(pos); +} + +uint32_t File::position() { + if (! _file) return -1; + return _file->curPosition(); +} + +uint32_t File::size() { + if (! _file) return 0; + return _file->fileSize(); +} + +void File::close() { + if (_file) { + _file->close(); + free(_file); + _file = 0; + + /* for debugging file open/close leaks + nfilecount--; + Serial.print("Deleted "); + Serial.println(nfilecount, DEC); + */ + } +} + +File::operator bool() { + if (_file) + return _file->isOpen(); + return false; +} + diff --git a/libraries/SD/README.txt b/libraries/SD/README.txt new file mode 100644 index 0000000..495ea4c --- /dev/null +++ b/libraries/SD/README.txt @@ -0,0 +1,13 @@ + +** SD - a slightly more friendly wrapper for sdfatlib ** + +This library aims to expose a subset of SD card functionality in the +form of a higher level "wrapper" object. + +License: GNU General Public License V3 + (Because sdfatlib is licensed with this.) + +(C) Copyright 2010 SparkFun Electronics + +Now better than ever with optimization, multiple file support, directory handling, etc - ladyada! + diff --git a/libraries/SD/SD.cpp b/libraries/SD/SD.cpp new file mode 100644 index 0000000..c746809 --- /dev/null +++ b/libraries/SD/SD.cpp @@ -0,0 +1,616 @@ +/* + + SD - a slightly more friendly wrapper for sdfatlib + + This library aims to expose a subset of SD card functionality + in the form of a higher level "wrapper" object. + + License: GNU General Public License V3 + (Because sdfatlib is licensed with this.) + + (C) Copyright 2010 SparkFun Electronics + + + This library provides four key benefits: + + * Including `SD.h` automatically creates a global + `SD` object which can be interacted with in a similar + manner to other standard global objects like `Serial` and `Ethernet`. + + * Boilerplate initialisation code is contained in one method named + `begin` and no further objects need to be created in order to access + the SD card. + + * Calls to `open` can supply a full path name including parent + directories which simplifies interacting with files in subdirectories. + + * Utility methods are provided to determine whether a file exists + and to create a directory heirarchy. + + + Note however that not all functionality provided by the underlying + sdfatlib library is exposed. + + */ + +/* + + Implementation Notes + + In order to handle multi-directory path traversal, functionality that + requires this ability is implemented as callback functions. + + Individual methods call the `walkPath` function which performs the actual + directory traversal (swapping between two different directory/file handles + along the way) and at each level calls the supplied callback function. + + Some types of functionality will take an action at each level (e.g. exists + or make directory) which others will only take an action at the bottom + level (e.g. open). + + */ + +#include "SD.h" + +// Used by `getNextPathComponent` +#define MAX_COMPONENT_LEN 12 // What is max length? +#define PATH_COMPONENT_BUFFER_LEN MAX_COMPONENT_LEN+1 + +bool getNextPathComponent(char *path, unsigned int *p_offset, + char *buffer) { + /* + + Parse individual path components from a path. + + e.g. after repeated calls '/foo/bar/baz' will be split + into 'foo', 'bar', 'baz'. + + This is similar to `strtok()` but copies the component into the + supplied buffer rather than modifying the original string. + + + `buffer` needs to be PATH_COMPONENT_BUFFER_LEN in size. + + `p_offset` needs to point to an integer of the offset at + which the previous path component finished. + + Returns `true` if more components remain. + + Returns `false` if this is the last component. + (This means path ended with 'foo' or 'foo/'.) + + */ + + // TODO: Have buffer local to this function, so we know it's the + // correct length? + + int bufferOffset = 0; + + int offset = *p_offset; + + // Skip root or other separator + if (path[offset] == '/') { + offset++; + } + + // Copy the next next path segment + while (bufferOffset < MAX_COMPONENT_LEN + && (path[offset] != '/') + && (path[offset] != '\0')) { + buffer[bufferOffset++] = path[offset++]; + } + + buffer[bufferOffset] = '\0'; + + // Skip trailing separator so we can determine if this + // is the last component in the path or not. + if (path[offset] == '/') { + offset++; + } + + *p_offset = offset; + + return (path[offset] != '\0'); +} + + + +boolean walkPath(char *filepath, SdFile& parentDir, + boolean (*callback)(SdFile& parentDir, + char *filePathComponent, + boolean isLastComponent, + void *object), + void *object = NULL) { + /* + + When given a file path (and parent directory--normally root), + this function traverses the directories in the path and at each + level calls the supplied callback function while also providing + the supplied object for context if required. + + e.g. given the path '/foo/bar/baz' + the callback would be called at the equivalent of + '/foo', '/foo/bar' and '/foo/bar/baz'. + + The implementation swaps between two different directory/file + handles as it traverses the directories and does not use recursion + in an attempt to use memory efficiently. + + If a callback wishes to stop the directory traversal it should + return false--in this case the function will stop the traversal, + tidy up and return false. + + If a directory path doesn't exist at some point this function will + also return false and not subsequently call the callback. + + If a directory path specified is complete, valid and the callback + did not indicate the traversal should be interrupted then this + function will return true. + + */ + + + SdFile subfile1; + SdFile subfile2; + + char buffer[PATH_COMPONENT_BUFFER_LEN]; + + unsigned int offset = 0; + + SdFile *p_parent; + SdFile *p_child; + + SdFile *p_tmp_sdfile; + + p_child = &subfile1; + + p_parent = &parentDir; + + while (true) { + + boolean moreComponents = getNextPathComponent(filepath, &offset, buffer); + + boolean shouldContinue = callback((*p_parent), buffer, !moreComponents, object); + + if (!shouldContinue) { + // TODO: Don't repeat this code? + // If it's one we've created then we + // don't need the parent handle anymore. + if (p_parent != &parentDir) { + (*p_parent).close(); + } + return false; + } + + if (!moreComponents) { + break; + } + + boolean exists = (*p_child).open(*p_parent, buffer, O_RDONLY); + + // If it's one we've created then we + // don't need the parent handle anymore. + if (p_parent != &parentDir) { + (*p_parent).close(); + } + + // Handle case when it doesn't exist and we can't continue... + if (exists) { + // We alternate between two file handles as we go down + // the path. + if (p_parent == &parentDir) { + p_parent = &subfile2; + } + + p_tmp_sdfile = p_parent; + p_parent = p_child; + p_child = p_tmp_sdfile; + } else { + return false; + } + } + + if (p_parent != &parentDir) { + (*p_parent).close(); // TODO: Return/ handle different? + } + + return true; +} + + + +/* + + The callbacks used to implement various functionality follow. + + Each callback is supplied with a parent directory handle, + character string with the name of the current file path component, + a flag indicating if this component is the last in the path and + a pointer to an arbitrary object used for context. + + */ + +boolean callback_pathExists(SdFile& parentDir, char *filePathComponent, + boolean isLastComponent, void *object) { + /* + + Callback used to determine if a file/directory exists in parent + directory. + + Returns true if file path exists. + + */ + SdFile child; + + boolean exists = child.open(parentDir, filePathComponent, O_RDONLY); + + if (exists) { + child.close(); + } + + return exists; +} + + + +boolean callback_makeDirPath(SdFile& parentDir, char *filePathComponent, + boolean isLastComponent, void *object) { + /* + + Callback used to create a directory in the parent directory if + it does not already exist. + + Returns true if a directory was created or it already existed. + + */ + boolean result = false; + SdFile child; + + result = callback_pathExists(parentDir, filePathComponent, isLastComponent, object); + if (!result) { + result = child.makeDir(parentDir, filePathComponent); + } + + return result; +} + + + /* + +boolean callback_openPath(SdFile& parentDir, char *filePathComponent, + boolean isLastComponent, void *object) { + + Callback used to open a file specified by a filepath that may + specify one or more directories above it. + + Expects the context object to be an instance of `SDClass` and + will use the `file` property of the instance to open the requested + file/directory with the associated file open mode property. + + Always returns true if the directory traversal hasn't reached the + bottom of the directory heirarchy. + + Returns false once the file has been opened--to prevent the traversal + from descending further. (This may be unnecessary.) + + if (isLastComponent) { + SDClass *p_SD = static_cast<SDClass*>(object); + p_SD->file.open(parentDir, filePathComponent, p_SD->fileOpenMode); + if (p_SD->fileOpenMode == FILE_WRITE) { + p_SD->file.seekSet(p_SD->file.fileSize()); + } + // TODO: Return file open result? + return false; + } + return true; +} + */ + + + +boolean callback_remove(SdFile& parentDir, char *filePathComponent, + boolean isLastComponent, void *object) { + if (isLastComponent) { + return SdFile::remove(parentDir, filePathComponent); + } + return true; +} + +boolean callback_rmdir(SdFile& parentDir, char *filePathComponent, + boolean isLastComponent, void *object) { + if (isLastComponent) { + SdFile f; + if (!f.open(parentDir, filePathComponent, O_READ)) return false; + return f.rmDir(); + } + return true; +} + + + +/* Implementation of class used to create `SDCard` object. */ + + + +boolean SDClass::begin(uint8_t csPin) { + /* + + Performs the initialisation required by the sdfatlib library. + + Return true if initialization succeeds, false otherwise. + + */ + return card.init(SPI_HALF_SPEED, csPin) && + volume.init(card) && + root.openRoot(volume); +} + + + +// this little helper is used to traverse paths +SdFile SDClass::getParentDir(const char *filepath, int *index) { + // get parent directory + SdFile d1 = root; // start with the mostparent, root! + SdFile d2; + + // we'll use the pointers to swap between the two objects + SdFile *parent = &d1; + SdFile *subdir = &d2; + + const char *origpath = filepath; + + while (strchr(filepath, '/')) { + + // get rid of leading /'s + if (filepath[0] == '/') { + filepath++; + continue; + } + + if (! strchr(filepath, '/')) { + // it was in the root directory, so leave now + break; + } + + // extract just the name of the next subdirectory + uint8_t idx = strchr(filepath, '/') - filepath; + if (idx > 12) + idx = 12; // dont let them specify long names + char subdirname[13]; + strncpy(subdirname, filepath, idx); + subdirname[idx] = 0; + + // close the subdir (we reuse them) if open + subdir->close(); + if (! subdir->open(parent, subdirname, O_READ)) { + // failed to open one of the subdirectories + return SdFile(); + } + // move forward to the next subdirectory + filepath += idx; + + // we reuse the objects, close it. + parent->close(); + + // swap the pointers + SdFile *t = parent; + parent = subdir; + subdir = t; + } + + *index = (int)(filepath - origpath); + // parent is now the parent diretory of the file! + return *parent; +} + + +File SDClass::open(const char *filepath, uint8_t mode) { + /* + + Open the supplied file path for reading or writing. + + The file content can be accessed via the `file` property of + the `SDClass` object--this property is currently + a standard `SdFile` object from `sdfatlib`. + + Defaults to read only. + + If `write` is true, default action (when `append` is true) is to + append data to the end of the file. + + If `append` is false then the file will be truncated first. + + If the file does not exist and it is opened for writing the file + will be created. + + An attempt to open a file for reading that does not exist is an + error. + + */ + + int pathidx; + + // do the interative search + SdFile parentdir = getParentDir(filepath, &pathidx); + // no more subdirs! + + filepath += pathidx; + + if (! filepath[0]) { + // it was the directory itself! + return File(parentdir, "/"); + } + + // Open the file itself + SdFile file; + + // failed to open a subdir! + if (!parentdir.isOpen()) + return File(); + + // there is a special case for the Root directory since its a static dir + if (parentdir.isRoot()) { + if ( ! file.open(SD.root, filepath, mode)) { + // failed to open the file :( + return File(); + } + // dont close the root! + } else { + if ( ! file.open(parentdir, filepath, mode)) { + return File(); + } + // close the parent + parentdir.close(); + } + + if (mode & (O_APPEND | O_WRITE)) + file.seekSet(file.fileSize()); + return File(file, filepath); +} + + +/* +File SDClass::open(char *filepath, uint8_t mode) { + // + + Open the supplied file path for reading or writing. + + The file content can be accessed via the `file` property of + the `SDClass` object--this property is currently + a standard `SdFile` object from `sdfatlib`. + + Defaults to read only. + + If `write` is true, default action (when `append` is true) is to + append data to the end of the file. + + If `append` is false then the file will be truncated first. + + If the file does not exist and it is opened for writing the file + will be created. + + An attempt to open a file for reading that does not exist is an + error. + + // + + // TODO: Allow for read&write? (Possibly not, as it requires seek.) + + fileOpenMode = mode; + walkPath(filepath, root, callback_openPath, this); + + return File(); + +} +*/ + + +//boolean SDClass::close() { +// /* +// +// Closes the file opened by the `open` method. +// +// */ +// file.close(); +//} + + +boolean SDClass::exists(char *filepath) { + /* + + Returns true if the supplied file path exists. + + */ + return walkPath(filepath, root, callback_pathExists); +} + + +//boolean SDClass::exists(char *filepath, SdFile& parentDir) { +// /* +// +// Returns true if the supplied file path rooted at `parentDir` +// exists. +// +// */ +// return walkPath(filepath, parentDir, callback_pathExists); +//} + + +boolean SDClass::mkdir(char *filepath) { + /* + + Makes a single directory or a heirarchy of directories. + + A rough equivalent to `mkdir -p`. + + */ + return walkPath(filepath, root, callback_makeDirPath); +} + +boolean SDClass::rmdir(char *filepath) { + /* + + Makes a single directory or a heirarchy of directories. + + A rough equivalent to `mkdir -p`. + + */ + return walkPath(filepath, root, callback_rmdir); +} + +boolean SDClass::remove(char *filepath) { + return walkPath(filepath, root, callback_remove); +} + + +// allows you to recurse into a directory +File File::openNextFile(uint8_t mode) { + dir_t p; + + //Serial.print("\t\treading dir..."); + while (_file->readDir(&p) > 0) { + + // done if past last used entry + if (p.name[0] == DIR_NAME_FREE) { + //Serial.println("end"); + return File(); + } + + // skip deleted entry and entries for . and .. + if (p.name[0] == DIR_NAME_DELETED || p.name[0] == '.') { + //Serial.println("dots"); + continue; + } + + // only list subdirectories and files + if (!DIR_IS_FILE_OR_SUBDIR(&p)) { + //Serial.println("notafile"); + continue; + } + + // print file name with possible blank fill + SdFile f; + char name[13]; + _file->dirName(p, name); + //Serial.print("try to open file "); + //Serial.println(name); + + if (f.open(_file, name, mode)) { + //Serial.println("OK!"); + return File(f, name); + } else { + //Serial.println("ugh"); + return File(); + } + } + + //Serial.println("nothing"); + return File(); +} + +void File::rewindDirectory(void) { + if (isDirectory()) + _file->rewind(); +} + +SDClass SD; diff --git a/libraries/SD/SD.h b/libraries/SD/SD.h new file mode 100644 index 0000000..f21ec0f --- /dev/null +++ b/libraries/SD/SD.h @@ -0,0 +1,103 @@ +/* + + SD - a slightly more friendly wrapper for sdfatlib + + This library aims to expose a subset of SD card functionality + in the form of a higher level "wrapper" object. + + License: GNU General Public License V3 + (Because sdfatlib is licensed with this.) + + (C) Copyright 2010 SparkFun Electronics + + */ + +#ifndef __SD_H__ +#define __SD_H__ + +#include <Arduino.h> + +#include <utility/SdFat.h> +#include <utility/SdFatUtil.h> + +#define FILE_READ O_READ +#define FILE_WRITE (O_READ | O_WRITE | O_CREAT) + +class File : public Stream { + private: + char _name[13]; // our name + SdFile *_file; // underlying file pointer + +public: + File(SdFile f, const char *name); // wraps an underlying SdFile + File(void); // 'empty' constructor + ~File(void); // destructor + virtual size_t write(uint8_t); + virtual size_t write(const uint8_t *buf, size_t size); + virtual int read(); + virtual int peek(); + virtual int available(); + virtual void flush(); + int read(void *buf, uint16_t nbyte); + boolean seek(uint32_t pos); + uint32_t position(); + uint32_t size(); + void close(); + operator bool(); + char * name(); + + boolean isDirectory(void); + File openNextFile(uint8_t mode = O_RDONLY); + void rewindDirectory(void); + + using Print::write; +}; + +class SDClass { + +private: + // These are required for initialisation and use of sdfatlib + Sd2Card card; + SdVolume volume; + SdFile root; + + // my quick&dirty iterator, should be replaced + SdFile getParentDir(const char *filepath, int *indx); +public: + // This needs to be called to set up the connection to the SD card + // before other methods are used. + boolean begin(uint8_t csPin = SD_CHIP_SELECT_PIN); + + // Open the specified file/directory with the supplied mode (e.g. read or + // write, etc). Returns a File object for interacting with the file. + // Note that currently only one file can be open at a time. + File open(const char *filename, uint8_t mode = FILE_READ); + + // Methods to determine if the requested file path exists. + boolean exists(char *filepath); + + // Create the requested directory heirarchy--if intermediate directories + // do not exist they will be created. + boolean mkdir(char *filepath); + + // Delete the file. + boolean remove(char *filepath); + + boolean rmdir(char *filepath); + +private: + + // This is used to determine the mode used to open a file + // it's here because it's the easiest place to pass the + // information through the directory walking function. But + // it's probably not the best place for it. + // It shouldn't be set directly--it is set via the parameters to `open`. + int fileOpenMode; + + friend class File; + friend boolean callback_openPath(SdFile&, char *, boolean, void *); +}; + +extern SDClass SD; + +#endif diff --git a/libraries/SD/examples/CardInfo/CardInfo.ino b/libraries/SD/examples/CardInfo/CardInfo.ino new file mode 100644 index 0000000..fb2f6c3 --- /dev/null +++ b/libraries/SD/examples/CardInfo/CardInfo.ino @@ -0,0 +1,111 @@ +/* + SD card test + + This example shows how use the utility libraries on which the' + SD library is based in order to get info about your SD card. + Very useful for testing a card when you're not sure whether its working or not. + + The circuit: + * SD card attached to SPI bus as follows: + ** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila + ** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila + ** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila + ** CS - depends on your SD card shield or module. + Pin 4 used here for consistency with other Arduino examples + + + created 28 Mar 2011 + by Limor Fried + modified 16 Mar 2011 + by Tom Igoe + */ + // include the SD library: +#include <SD.h> + +// set up variables using the SD utility library functions: +Sd2Card card; +SdVolume volume; +SdFile root; + +// change this to match your SD shield or module; +// Arduino Ethernet shield: pin 4 +// Adafruit SD shields and modules: pin 10 +// Sparkfun SD shield: pin 8 +const int chipSelect = 4; + +void setup() +{ + Serial.begin(9600); + Serial.print("\nInitializing SD card..."); + // On the Ethernet Shield, CS is pin 4. It's set as an output by default. + // Note that even if it's not used as the CS pin, the hardware SS pin + // (10 on most Arduino boards, 53 on the Mega) must be left as an output + // or the SD library functions will not work. + pinMode(10, OUTPUT); // change this to 53 on a mega + + + // we'll use the initialization code from the utility libraries + // since we're just testing if the card is working! + if (!card.init(SPI_HALF_SPEED, chipSelect)) { + Serial.println("initialization failed. Things to check:"); + Serial.println("* is a card is inserted?"); + Serial.println("* Is your wiring correct?"); + Serial.println("* did you change the chipSelect pin to match your shield or module?"); + return; + } else { + Serial.println("Wiring is correct and a card is present."); + } + + // print the type of card + Serial.print("\nCard type: "); + switch(card.type()) { + case SD_CARD_TYPE_SD1: + Serial.println("SD1"); + break; + case SD_CARD_TYPE_SD2: + Serial.println("SD2"); + break; + case SD_CARD_TYPE_SDHC: + Serial.println("SDHC"); + break; + default: + Serial.println("Unknown"); + } + + // Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32 + if (!volume.init(card)) { + Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card"); + return; + } + + + // print the type and size of the first FAT-type volume + uint32_t volumesize; + Serial.print("\nVolume type is FAT"); + Serial.println(volume.fatType(), DEC); + Serial.println(); + + volumesize = volume.blocksPerCluster(); // clusters are collections of blocks + volumesize *= volume.clusterCount(); // we'll have a lot of clusters + volumesize *= 512; // SD card blocks are always 512 bytes + Serial.print("Volume size (bytes): "); + Serial.println(volumesize); + Serial.print("Volume size (Kbytes): "); + volumesize /= 1024; + Serial.println(volumesize); + Serial.print("Volume size (Mbytes): "); + volumesize /= 1024; + Serial.println(volumesize); + + + Serial.println("\nFiles found on the card (name, date and size in bytes): "); + root.openRoot(volume); + + // list all files in the card with date and size + root.ls(LS_R | LS_DATE | LS_SIZE); +} + + +void loop(void) { + +} diff --git a/libraries/SD/examples/Datalogger/Datalogger.ino b/libraries/SD/examples/Datalogger/Datalogger.ino new file mode 100644 index 0000000..73d81af --- /dev/null +++ b/libraries/SD/examples/Datalogger/Datalogger.ino @@ -0,0 +1,86 @@ +/* + SD card datalogger + + This example shows how to log data from three analog sensors + to an SD card using the SD library. + + The circuit: + * analog sensors on analog ins 0, 1, and 2 + * SD card attached to SPI bus as follows: + ** MOSI - pin 11 + ** MISO - pin 12 + ** CLK - pin 13 + ** CS - pin 4 + + created 24 Nov 2010 + updated 2 Dec 2010 + by Tom Igoe + + This example code is in the public domain. + + */ + +#include <SD.h> + +// On the Ethernet Shield, CS is pin 4. Note that even if it's not +// used as the CS pin, the hardware CS pin (10 on most Arduino boards, +// 53 on the Mega) must be left as an output or the SD library +// functions will not work. +const int chipSelect = 4; + +void setup() +{ + Serial.begin(9600); + Serial.print("Initializing SD card..."); + // make sure that the default chip select pin is set to + // output, even if you don't use it: + pinMode(10, OUTPUT); + + // see if the card is present and can be initialized: + if (!SD.begin(chipSelect)) { + Serial.println("Card failed, or not present"); + // don't do anything more: + return; + } + Serial.println("card initialized."); +} + +void loop() +{ + // make a string for assembling the data to log: + String dataString = ""; + + // read three sensors and append to the string: + for (int analogPin = 0; analogPin < 3; analogPin++) { + int sensor = analogRead(analogPin); + dataString += String(sensor); + if (analogPin < 2) { + dataString += ","; + } + } + + // open the file. note that only one file can be open at a time, + // so you have to close this one before opening another. + File dataFile = SD.open("datalog.txt", FILE_WRITE); + + // if the file is available, write to it: + if (dataFile) { + dataFile.println(dataString); + dataFile.close(); + // print to the serial port too: + Serial.println(dataString); + } + // if the file isn't open, pop up an error: + else { + Serial.println("error opening datalog.txt"); + } +} + + + + + + + + + diff --git a/libraries/SD/examples/DumpFile/DumpFile.ino b/libraries/SD/examples/DumpFile/DumpFile.ino new file mode 100644 index 0000000..961717f --- /dev/null +++ b/libraries/SD/examples/DumpFile/DumpFile.ino @@ -0,0 +1,64 @@ +/* + SD card file dump + + This example shows how to read a file from the SD card using the + SD library and send it over the serial port. + + The circuit: + * SD card attached to SPI bus as follows: + ** MOSI - pin 11 + ** MISO - pin 12 + ** CLK - pin 13 + ** CS - pin 4 + + created 22 December 2010 + + This example code is in the public domain. + + */ + +#include <SD.h> + +// On the Ethernet Shield, CS is pin 4. Note that even if it's not +// used as the CS pin, the hardware CS pin (10 on most Arduino boards, +// 53 on the Mega) must be left as an output or the SD library +// functions will not work. +const int chipSelect = 4; + +void setup() +{ + Serial.begin(9600); + Serial.print("Initializing SD card..."); + // make sure that the default chip select pin is set to + // output, even if you don't use it: + pinMode(10, OUTPUT); + + // see if the card is present and can be initialized: + if (!SD.begin(chipSelect)) { + Serial.println("Card failed, or not present"); + // don't do anything more: + return; + } + Serial.println("card initialized."); + + // open the file. note that only one file can be open at a time, + // so you have to close this one before opening another. + File dataFile = SD.open("datalog.txt"); + + // if the file is available, write to it: + if (dataFile) { + while (dataFile.available()) { + Serial.write(dataFile.read()); + } + dataFile.close(); + } + // if the file isn't open, pop up an error: + else { + Serial.println("error opening datalog.txt"); + } +} + +void loop() +{ +} + diff --git a/libraries/SD/examples/Files/Files.ino b/libraries/SD/examples/Files/Files.ino new file mode 100644 index 0000000..5ed9fea --- /dev/null +++ b/libraries/SD/examples/Files/Files.ino @@ -0,0 +1,78 @@ +/* + SD card basic file example + + This example shows how to create and destroy an SD card file + The circuit: + * SD card attached to SPI bus as follows: + ** MOSI - pin 11 + ** MISO - pin 12 + ** CLK - pin 13 + ** CS - pin 4 + + created Nov 2010 + by David A. Mellis + updated 2 Dec 2010 + by Tom Igoe + + This example code is in the public domain. + + */ +#include <SD.h> + +File myFile; + +void setup() +{ + Serial.begin(9600); + Serial.print("Initializing SD card..."); + // On the Ethernet Shield, CS is pin 4. It's set as an output by default. + // Note that even if it's not used as the CS pin, the hardware SS pin + // (10 on most Arduino boards, 53 on the Mega) must be left as an output + // or the SD library functions will not work. + pinMode(10, OUTPUT); + + if (!SD.begin(4)) { + Serial.println("initialization failed!"); + return; + } + Serial.println("initialization done."); + + if (SD.exists("example.txt")) { + Serial.println("example.txt exists."); + } + else { + Serial.println("example.txt doesn't exist."); + } + + // open a new file and immediately close it: + Serial.println("Creating example.txt..."); + myFile = SD.open("example.txt", FILE_WRITE); + myFile.close(); + + // Check to see if the file exists: + if (SD.exists("example.txt")) { + Serial.println("example.txt exists."); + } + else { + Serial.println("example.txt doesn't exist."); + } + + // delete the file: + Serial.println("Removing example.txt..."); + SD.remove("example.txt"); + + if (SD.exists("example.txt")){ + Serial.println("example.txt exists."); + } + else { + Serial.println("example.txt doesn't exist."); + } +} + +void loop() +{ + // nothing happens after setup finishes. +} + + + diff --git a/libraries/SD/examples/ReadWrite/ReadWrite.ino b/libraries/SD/examples/ReadWrite/ReadWrite.ino new file mode 100644 index 0000000..9957218 --- /dev/null +++ b/libraries/SD/examples/ReadWrite/ReadWrite.ino @@ -0,0 +1,79 @@ +/* + SD card read/write + + This example shows how to read and write data to and from an SD card file + The circuit: + * SD card attached to SPI bus as follows: + ** MOSI - pin 11 + ** MISO - pin 12 + ** CLK - pin 13 + ** CS - pin 4 + + created Nov 2010 + by David A. Mellis + updated 2 Dec 2010 + by Tom Igoe + + This example code is in the public domain. + + */ + +#include <SD.h> + +File myFile; + +void setup() +{ + Serial.begin(9600); + Serial.print("Initializing SD card..."); + // On the Ethernet Shield, CS is pin 4. It's set as an output by default. + // Note that even if it's not used as the CS pin, the hardware SS pin + // (10 on most Arduino boards, 53 on the Mega) must be left as an output + // or the SD library functions will not work. + pinMode(10, OUTPUT); + + if (!SD.begin(4)) { + Serial.println("initialization failed!"); + return; + } + Serial.println("initialization done."); + + // open the file. note that only one file can be open at a time, + // so you have to close this one before opening another. + myFile = SD.open("test.txt", FILE_WRITE); + + // if the file opened okay, write to it: + if (myFile) { + Serial.print("Writing to test.txt..."); + myFile.println("testing 1, 2, 3."); + // close the file: + myFile.close(); + Serial.println("done."); + } else { + // if the file didn't open, print an error: + Serial.println("error opening test.txt"); + } + + // re-open the file for reading: + myFile = SD.open("test.txt"); + if (myFile) { + Serial.println("test.txt:"); + + // read from the file until there's nothing else in it: + while (myFile.available()) { + Serial.write(myFile.read()); + } + // close the file: + myFile.close(); + } else { + // if the file didn't open, print an error: + Serial.println("error opening test.txt"); + } +} + +void loop() +{ + // nothing happens after setup +} + + diff --git a/libraries/SD/examples/listfiles/listfiles.ino b/libraries/SD/examples/listfiles/listfiles.ino new file mode 100644 index 0000000..b2435a2 --- /dev/null +++ b/libraries/SD/examples/listfiles/listfiles.ino @@ -0,0 +1,77 @@ +/* + SD card basic file example + + This example shows how to create and destroy an SD card file + The circuit: + * SD card attached to SPI bus as follows: + ** MOSI - pin 11 + ** MISO - pin 12 + ** CLK - pin 13 + ** CS - pin 4 + + created Nov 2010 + by David A. Mellis + updated 2 Dec 2010 + by Tom Igoe + + This example code is in the public domain. + + */ +#include <SD.h> + +File root; + +void setup() +{ + Serial.begin(9600); + Serial.print("Initializing SD card..."); + // On the Ethernet Shield, CS is pin 4. It's set as an output by default. + // Note that even if it's not used as the CS pin, the hardware SS pin + // (10 on most Arduino boards, 53 on the Mega) must be left as an output + // or the SD library functions will not work. + pinMode(10, OUTPUT); + + if (!SD.begin(10)) { + Serial.println("initialization failed!"); + return; + } + Serial.println("initialization done."); + + root = SD.open("/"); + + printDirectory(root, 0); + + Serial.println("done!"); +} + +void loop() +{ + // nothing happens after setup finishes. +} + +void printDirectory(File dir, int numTabs) { + while(true) { + + File entry = dir.openNextFile(); + if (! entry) { + // no more files + //Serial.println("**nomorefiles**"); + break; + } + for (uint8_t i=0; i<numTabs; i++) { + Serial.print('\t'); + } + Serial.print(entry.name()); + if (entry.isDirectory()) { + Serial.println("/"); + printDirectory(entry, numTabs+1); + } else { + // files have sizes, directories do not + Serial.print("\t\t"); + Serial.println(entry.size(), DEC); + } + } +} + + + diff --git a/libraries/SD/keywords.txt b/libraries/SD/keywords.txt new file mode 100644 index 0000000..419fe04 --- /dev/null +++ b/libraries/SD/keywords.txt @@ -0,0 +1,30 @@ +####################################### +# Syntax Coloring Map SD +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +SD KEYWORD1 +File KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### +begin KEYWORD2 +exists KEYWORD2 +mkdir KEYWORD2 +remove KEYWORD2 +rmdir KEYWORD2 +open KEYWORD2 +close KEYWORD2 +seek KEYWORD2 +position KEYWORD2 +size KEYWORD2 + +####################################### +# Constants (LITERAL1) +####################################### +FILE_READ LITERAL1 +FILE_WRITE LITERAL1 diff --git a/libraries/SD/utility/FatStructs.h b/libraries/SD/utility/FatStructs.h new file mode 100644 index 0000000..f5bdaa5 --- /dev/null +++ b/libraries/SD/utility/FatStructs.h @@ -0,0 +1,418 @@ +/* Arduino SdFat Library
+ * Copyright (C) 2009 by William Greiman
+ *
+ * This file is part of the Arduino SdFat Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino SdFat Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+#ifndef FatStructs_h
+#define FatStructs_h
+/**
+ * \file
+ * FAT file structures
+ */
+/*
+ * mostly from Microsoft document fatgen103.doc
+ * http://www.microsoft.com/whdc/system/platform/firmware/fatgen.mspx
+ */
+//------------------------------------------------------------------------------
+/** Value for byte 510 of boot block or MBR */
+uint8_t const BOOTSIG0 = 0X55;
+/** Value for byte 511 of boot block or MBR */
+uint8_t const BOOTSIG1 = 0XAA;
+//------------------------------------------------------------------------------
+/**
+ * \struct partitionTable
+ * \brief MBR partition table entry
+ *
+ * A partition table entry for a MBR formatted storage device.
+ * The MBR partition table has four entries.
+ */
+struct partitionTable {
+ /**
+ * Boot Indicator . Indicates whether the volume is the active
+ * partition. Legal values include: 0X00. Do not use for booting.
+ * 0X80 Active partition.
+ */
+ uint8_t boot;
+ /**
+ * Head part of Cylinder-head-sector address of the first block in
+ * the partition. Legal values are 0-255. Only used in old PC BIOS.
+ */
+ uint8_t beginHead;
+ /**
+ * Sector part of Cylinder-head-sector address of the first block in
+ * the partition. Legal values are 1-63. Only used in old PC BIOS.
+ */
+ unsigned beginSector : 6;
+ /** High bits cylinder for first block in partition. */
+ unsigned beginCylinderHigh : 2;
+ /**
+ * Combine beginCylinderLow with beginCylinderHigh. Legal values
+ * are 0-1023. Only used in old PC BIOS.
+ */
+ uint8_t beginCylinderLow;
+ /**
+ * Partition type. See defines that begin with PART_TYPE_ for
+ * some Microsoft partition types.
+ */
+ uint8_t type;
+ /**
+ * head part of cylinder-head-sector address of the last sector in the
+ * partition. Legal values are 0-255. Only used in old PC BIOS.
+ */
+ uint8_t endHead;
+ /**
+ * Sector part of cylinder-head-sector address of the last sector in
+ * the partition. Legal values are 1-63. Only used in old PC BIOS.
+ */
+ unsigned endSector : 6;
+ /** High bits of end cylinder */
+ unsigned endCylinderHigh : 2;
+ /**
+ * Combine endCylinderLow with endCylinderHigh. Legal values
+ * are 0-1023. Only used in old PC BIOS.
+ */
+ uint8_t endCylinderLow;
+ /** Logical block address of the first block in the partition. */
+ uint32_t firstSector;
+ /** Length of the partition, in blocks. */
+ uint32_t totalSectors;
+};
+/** Type name for partitionTable */
+typedef struct partitionTable part_t;
+//------------------------------------------------------------------------------
+/**
+ * \struct masterBootRecord
+ *
+ * \brief Master Boot Record
+ *
+ * The first block of a storage device that is formatted with a MBR.
+ */
+struct masterBootRecord {
+ /** Code Area for master boot program. */
+ uint8_t codeArea[440];
+ /** Optional WindowsNT disk signature. May contain more boot code. */
+ uint32_t diskSignature;
+ /** Usually zero but may be more boot code. */
+ uint16_t usuallyZero;
+ /** Partition tables. */
+ part_t part[4];
+ /** First MBR signature byte. Must be 0X55 */
+ uint8_t mbrSig0;
+ /** Second MBR signature byte. Must be 0XAA */
+ uint8_t mbrSig1;
+};
+/** Type name for masterBootRecord */
+typedef struct masterBootRecord mbr_t;
+//------------------------------------------------------------------------------
+/**
+ * \struct biosParmBlock
+ *
+ * \brief BIOS parameter block
+ *
+ * The BIOS parameter block describes the physical layout of a FAT volume.
+ */
+struct biosParmBlock {
+ /**
+ * Count of bytes per sector. This value may take on only the
+ * following values: 512, 1024, 2048 or 4096
+ */
+ uint16_t bytesPerSector;
+ /**
+ * Number of sectors per allocation unit. This value must be a
+ * power of 2 that is greater than 0. The legal values are
+ * 1, 2, 4, 8, 16, 32, 64, and 128.
+ */
+ uint8_t sectorsPerCluster;
+ /**
+ * Number of sectors before the first FAT.
+ * This value must not be zero.
+ */
+ uint16_t reservedSectorCount;
+ /** The count of FAT data structures on the volume. This field should
+ * always contain the value 2 for any FAT volume of any type.
+ */
+ uint8_t fatCount;
+ /**
+ * For FAT12 and FAT16 volumes, this field contains the count of
+ * 32-byte directory entries in the root directory. For FAT32 volumes,
+ * this field must be set to 0. For FAT12 and FAT16 volumes, this
+ * value should always specify a count that when multiplied by 32
+ * results in a multiple of bytesPerSector. FAT16 volumes should
+ * use the value 512.
+ */
+ uint16_t rootDirEntryCount;
+ /**
+ * This field is the old 16-bit total count of sectors on the volume.
+ * This count includes the count of all sectors in all four regions
+ * of the volume. This field can be 0; if it is 0, then totalSectors32
+ * must be non-zero. For FAT32 volumes, this field must be 0. For
+ * FAT12 and FAT16 volumes, this field contains the sector count, and
+ * totalSectors32 is 0 if the total sector count fits
+ * (is less than 0x10000).
+ */
+ uint16_t totalSectors16;
+ /**
+ * This dates back to the old MS-DOS 1.x media determination and is
+ * no longer usually used for anything. 0xF8 is the standard value
+ * for fixed (non-removable) media. For removable media, 0xF0 is
+ * frequently used. Legal values are 0xF0 or 0xF8-0xFF.
+ */
+ uint8_t mediaType;
+ /**
+ * Count of sectors occupied by one FAT on FAT12/FAT16 volumes.
+ * On FAT32 volumes this field must be 0, and sectorsPerFat32
+ * contains the FAT size count.
+ */
+ uint16_t sectorsPerFat16;
+ /** Sectors per track for interrupt 0x13. Not used otherwise. */
+ uint16_t sectorsPerTrtack;
+ /** Number of heads for interrupt 0x13. Not used otherwise. */
+ uint16_t headCount;
+ /**
+ * Count of hidden sectors preceding the partition that contains this
+ * FAT volume. This field is generally only relevant for media
+ * visible on interrupt 0x13.
+ */
+ uint32_t hidddenSectors;
+ /**
+ * This field is the new 32-bit total count of sectors on the volume.
+ * This count includes the count of all sectors in all four regions
+ * of the volume. This field can be 0; if it is 0, then
+ * totalSectors16 must be non-zero.
+ */
+ uint32_t totalSectors32;
+ /**
+ * Count of sectors occupied by one FAT on FAT32 volumes.
+ */
+ uint32_t sectorsPerFat32;
+ /**
+ * This field is only defined for FAT32 media and does not exist on
+ * FAT12 and FAT16 media.
+ * Bits 0-3 -- Zero-based number of active FAT.
+ * Only valid if mirroring is disabled.
+ * Bits 4-6 -- Reserved.
+ * Bit 7 -- 0 means the FAT is mirrored at runtime into all FATs.
+ * -- 1 means only one FAT is active; it is the one referenced in bits 0-3.
+ * Bits 8-15 -- Reserved.
+ */
+ uint16_t fat32Flags;
+ /**
+ * FAT32 version. High byte is major revision number.
+ * Low byte is minor revision number. Only 0.0 define.
+ */
+ uint16_t fat32Version;
+ /**
+ * Cluster number of the first cluster of the root directory for FAT32.
+ * This usually 2 but not required to be 2.
+ */
+ uint32_t fat32RootCluster;
+ /**
+ * Sector number of FSINFO structure in the reserved area of the
+ * FAT32 volume. Usually 1.
+ */
+ uint16_t fat32FSInfo;
+ /**
+ * If non-zero, indicates the sector number in the reserved area
+ * of the volume of a copy of the boot record. Usually 6.
+ * No value other than 6 is recommended.
+ */
+ uint16_t fat32BackBootBlock;
+ /**
+ * Reserved for future expansion. Code that formats FAT32 volumes
+ * should always set all of the bytes of this field to 0.
+ */
+ uint8_t fat32Reserved[12];
+};
+/** Type name for biosParmBlock */
+typedef struct biosParmBlock bpb_t;
+//------------------------------------------------------------------------------
+/**
+ * \struct fat32BootSector
+ *
+ * \brief Boot sector for a FAT16 or FAT32 volume.
+ *
+ */
+struct fat32BootSector {
+ /** X86 jmp to boot program */
+ uint8_t jmpToBootCode[3];
+ /** informational only - don't depend on it */
+ char oemName[8];
+ /** BIOS Parameter Block */
+ bpb_t bpb;
+ /** for int0x13 use value 0X80 for hard drive */
+ uint8_t driveNumber;
+ /** used by Windows NT - should be zero for FAT */
+ uint8_t reserved1;
+ /** 0X29 if next three fields are valid */
+ uint8_t bootSignature;
+ /** usually generated by combining date and time */
+ uint32_t volumeSerialNumber;
+ /** should match volume label in root dir */
+ char volumeLabel[11];
+ /** informational only - don't depend on it */
+ char fileSystemType[8];
+ /** X86 boot code */
+ uint8_t bootCode[420];
+ /** must be 0X55 */
+ uint8_t bootSectorSig0;
+ /** must be 0XAA */
+ uint8_t bootSectorSig1;
+};
+//------------------------------------------------------------------------------
+// End Of Chain values for FAT entries
+/** FAT16 end of chain value used by Microsoft. */
+uint16_t const FAT16EOC = 0XFFFF;
+/** Minimum value for FAT16 EOC. Use to test for EOC. */
+uint16_t const FAT16EOC_MIN = 0XFFF8;
+/** FAT32 end of chain value used by Microsoft. */
+uint32_t const FAT32EOC = 0X0FFFFFFF;
+/** Minimum value for FAT32 EOC. Use to test for EOC. */
+uint32_t const FAT32EOC_MIN = 0X0FFFFFF8;
+/** Mask a for FAT32 entry. Entries are 28 bits. */
+uint32_t const FAT32MASK = 0X0FFFFFFF;
+
+/** Type name for fat32BootSector */
+typedef struct fat32BootSector fbs_t;
+//------------------------------------------------------------------------------
+/**
+ * \struct directoryEntry
+ * \brief FAT short directory entry
+ *
+ * Short means short 8.3 name, not the entry size.
+ *
+ * Date Format. A FAT directory entry date stamp is a 16-bit field that is
+ * basically a date relative to the MS-DOS epoch of 01/01/1980. Here is the
+ * format (bit 0 is the LSB of the 16-bit word, bit 15 is the MSB of the
+ * 16-bit word):
+ *
+ * Bits 9-15: Count of years from 1980, valid value range 0-127
+ * inclusive (1980-2107).
+ *
+ * Bits 5-8: Month of year, 1 = January, valid value range 1-12 inclusive.
+ *
+ * Bits 0-4: Day of month, valid value range 1-31 inclusive.
+ *
+ * Time Format. A FAT directory entry time stamp is a 16-bit field that has
+ * a granularity of 2 seconds. Here is the format (bit 0 is the LSB of the
+ * 16-bit word, bit 15 is the MSB of the 16-bit word).
+ *
+ * Bits 11-15: Hours, valid value range 0-23 inclusive.
+ *
+ * Bits 5-10: Minutes, valid value range 0-59 inclusive.
+ *
+ * Bits 0-4: 2-second count, valid value range 0-29 inclusive (0 - 58 seconds).
+ *
+ * The valid time range is from Midnight 00:00:00 to 23:59:58.
+ */
+struct directoryEntry {
+ /**
+ * Short 8.3 name.
+ * The first eight bytes contain the file name with blank fill.
+ * The last three bytes contain the file extension with blank fill.
+ */
+ uint8_t name[11];
+ /** Entry attributes.
+ *
+ * The upper two bits of the attribute byte are reserved and should
+ * always be set to 0 when a file is created and never modified or
+ * looked at after that. See defines that begin with DIR_ATT_.
+ */
+ uint8_t attributes;
+ /**
+ * Reserved for use by Windows NT. Set value to 0 when a file is
+ * created and never modify or look at it after that.
+ */
+ uint8_t reservedNT;
+ /**
+ * The granularity of the seconds part of creationTime is 2 seconds
+ * so this field is a count of tenths of a second and its valid
+ * value range is 0-199 inclusive. (WHG note - seems to be hundredths)
+ */
+ uint8_t creationTimeTenths;
+ /** Time file was created. */
+ uint16_t creationTime;
+ /** Date file was created. */
+ uint16_t creationDate;
+ /**
+ * Last access date. Note that there is no last access time, only
+ * a date. This is the date of last read or write. In the case of
+ * a write, this should be set to the same date as lastWriteDate.
+ */
+ uint16_t lastAccessDate;
+ /**
+ * High word of this entry's first cluster number (always 0 for a
+ * FAT12 or FAT16 volume).
+ */
+ uint16_t firstClusterHigh;
+ /** Time of last write. File creation is considered a write. */
+ uint16_t lastWriteTime;
+ /** Date of last write. File creation is considered a write. */
+ uint16_t lastWriteDate;
+ /** Low word of this entry's first cluster number. */
+ uint16_t firstClusterLow;
+ /** 32-bit unsigned holding this file's size in bytes. */
+ uint32_t fileSize;
+};
+//------------------------------------------------------------------------------
+// Definitions for directory entries
+//
+/** Type name for directoryEntry */
+typedef struct directoryEntry dir_t;
+/** escape for name[0] = 0XE5 */
+uint8_t const DIR_NAME_0XE5 = 0X05;
+/** name[0] value for entry that is free after being "deleted" */
+uint8_t const DIR_NAME_DELETED = 0XE5;
+/** name[0] value for entry that is free and no allocated entries follow */
+uint8_t const DIR_NAME_FREE = 0X00;
+/** file is read-only */
+uint8_t const DIR_ATT_READ_ONLY = 0X01;
+/** File should hidden in directory listings */
+uint8_t const DIR_ATT_HIDDEN = 0X02;
+/** Entry is for a system file */
+uint8_t const DIR_ATT_SYSTEM = 0X04;
+/** Directory entry contains the volume label */
+uint8_t const DIR_ATT_VOLUME_ID = 0X08;
+/** Entry is for a directory */
+uint8_t const DIR_ATT_DIRECTORY = 0X10;
+/** Old DOS archive bit for backup support */
+uint8_t const DIR_ATT_ARCHIVE = 0X20;
+/** Test value for long name entry. Test is
+ (d->attributes & DIR_ATT_LONG_NAME_MASK) == DIR_ATT_LONG_NAME. */
+uint8_t const DIR_ATT_LONG_NAME = 0X0F;
+/** Test mask for long name entry */
+uint8_t const DIR_ATT_LONG_NAME_MASK = 0X3F;
+/** defined attribute bits */
+uint8_t const DIR_ATT_DEFINED_BITS = 0X3F;
+/** Directory entry is part of a long name */
+static inline uint8_t DIR_IS_LONG_NAME(const dir_t* dir) {
+ return (dir->attributes & DIR_ATT_LONG_NAME_MASK) == DIR_ATT_LONG_NAME;
+}
+/** Mask for file/subdirectory tests */
+uint8_t const DIR_ATT_FILE_TYPE_MASK = (DIR_ATT_VOLUME_ID | DIR_ATT_DIRECTORY);
+/** Directory entry is for a file */
+static inline uint8_t DIR_IS_FILE(const dir_t* dir) {
+ return (dir->attributes & DIR_ATT_FILE_TYPE_MASK) == 0;
+}
+/** Directory entry is for a subdirectory */
+static inline uint8_t DIR_IS_SUBDIR(const dir_t* dir) {
+ return (dir->attributes & DIR_ATT_FILE_TYPE_MASK) == DIR_ATT_DIRECTORY;
+}
+/** Directory entry is for a file or subdirectory */
+static inline uint8_t DIR_IS_FILE_OR_SUBDIR(const dir_t* dir) {
+ return (dir->attributes & DIR_ATT_VOLUME_ID) == 0;
+}
+#endif // FatStructs_h
diff --git a/libraries/SD/utility/Sd2Card.cpp b/libraries/SD/utility/Sd2Card.cpp new file mode 100644 index 0000000..361cd0a --- /dev/null +++ b/libraries/SD/utility/Sd2Card.cpp @@ -0,0 +1,644 @@ +/* Arduino Sd2Card Library
+ * Copyright (C) 2009 by William Greiman
+ *
+ * This file is part of the Arduino Sd2Card Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino Sd2Card Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+#include <Arduino.h>
+#include "Sd2Card.h"
+//------------------------------------------------------------------------------
+#ifndef SOFTWARE_SPI
+// functions for hardware SPI
+/** Send a byte to the card */
+static void spiSend(uint8_t b) {
+ SPDR = b;
+ while (!(SPSR & (1 << SPIF)));
+}
+/** Receive a byte from the card */
+static uint8_t spiRec(void) {
+ spiSend(0XFF);
+ return SPDR;
+}
+#else // SOFTWARE_SPI
+//------------------------------------------------------------------------------
+/** nop to tune soft SPI timing */
+#define nop asm volatile ("nop\n\t")
+//------------------------------------------------------------------------------
+/** Soft SPI receive */
+uint8_t spiRec(void) {
+ uint8_t data = 0;
+ // no interrupts during byte receive - about 8 us
+ cli();
+ // output pin high - like sending 0XFF
+ fastDigitalWrite(SPI_MOSI_PIN, HIGH);
+
+ for (uint8_t i = 0; i < 8; i++) {
+ fastDigitalWrite(SPI_SCK_PIN, HIGH);
+
+ // adjust so SCK is nice
+ nop;
+ nop;
+
+ data <<= 1;
+
+ if (fastDigitalRead(SPI_MISO_PIN)) data |= 1;
+
+ fastDigitalWrite(SPI_SCK_PIN, LOW);
+ }
+ // enable interrupts
+ sei();
+ return data;
+}
+//------------------------------------------------------------------------------
+/** Soft SPI send */
+void spiSend(uint8_t data) {
+ // no interrupts during byte send - about 8 us
+ cli();
+ for (uint8_t i = 0; i < 8; i++) {
+ fastDigitalWrite(SPI_SCK_PIN, LOW);
+
+ fastDigitalWrite(SPI_MOSI_PIN, data & 0X80);
+
+ data <<= 1;
+
+ fastDigitalWrite(SPI_SCK_PIN, HIGH);
+ }
+ // hold SCK high for a few ns
+ nop;
+ nop;
+ nop;
+ nop;
+
+ fastDigitalWrite(SPI_SCK_PIN, LOW);
+ // enable interrupts
+ sei();
+}
+#endif // SOFTWARE_SPI
+//------------------------------------------------------------------------------
+// send command and return error code. Return zero for OK
+uint8_t Sd2Card::cardCommand(uint8_t cmd, uint32_t arg) {
+ // end read if in partialBlockRead mode
+ readEnd();
+
+ // select card
+ chipSelectLow();
+
+ // wait up to 300 ms if busy
+ waitNotBusy(300);
+
+ // send command
+ spiSend(cmd | 0x40);
+
+ // send argument
+ for (int8_t s = 24; s >= 0; s -= 8) spiSend(arg >> s);
+
+ // send CRC
+ uint8_t crc = 0XFF;
+ if (cmd == CMD0) crc = 0X95; // correct crc for CMD0 with arg 0
+ if (cmd == CMD8) crc = 0X87; // correct crc for CMD8 with arg 0X1AA
+ spiSend(crc);
+
+ // wait for response
+ for (uint8_t i = 0; ((status_ = spiRec()) & 0X80) && i != 0XFF; i++);
+ return status_;
+}
+//------------------------------------------------------------------------------
+/**
+ * Determine the size of an SD flash memory card.
+ *
+ * \return The number of 512 byte data blocks in the card
+ * or zero if an error occurs.
+ */
+uint32_t Sd2Card::cardSize(void) {
+ csd_t csd;
+ if (!readCSD(&csd)) return 0;
+ if (csd.v1.csd_ver == 0) {
+ uint8_t read_bl_len = csd.v1.read_bl_len;
+ uint16_t c_size = (csd.v1.c_size_high << 10)
+ | (csd.v1.c_size_mid << 2) | csd.v1.c_size_low;
+ uint8_t c_size_mult = (csd.v1.c_size_mult_high << 1)
+ | csd.v1.c_size_mult_low;
+ return (uint32_t)(c_size + 1) << (c_size_mult + read_bl_len - 7);
+ } else if (csd.v2.csd_ver == 1) {
+ uint32_t c_size = ((uint32_t)csd.v2.c_size_high << 16)
+ | (csd.v2.c_size_mid << 8) | csd.v2.c_size_low;
+ return (c_size + 1) << 10;
+ } else {
+ error(SD_CARD_ERROR_BAD_CSD);
+ return 0;
+ }
+}
+//------------------------------------------------------------------------------
+void Sd2Card::chipSelectHigh(void) {
+ digitalWrite(chipSelectPin_, HIGH);
+}
+//------------------------------------------------------------------------------
+void Sd2Card::chipSelectLow(void) {
+ digitalWrite(chipSelectPin_, LOW);
+}
+//------------------------------------------------------------------------------
+/** Erase a range of blocks.
+ *
+ * \param[in] firstBlock The address of the first block in the range.
+ * \param[in] lastBlock The address of the last block in the range.
+ *
+ * \note This function requests the SD card to do a flash erase for a
+ * range of blocks. The data on the card after an erase operation is
+ * either 0 or 1, depends on the card vendor. The card must support
+ * single block erase.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t Sd2Card::erase(uint32_t firstBlock, uint32_t lastBlock) {
+ if (!eraseSingleBlockEnable()) {
+ error(SD_CARD_ERROR_ERASE_SINGLE_BLOCK);
+ goto fail;
+ }
+ if (type_ != SD_CARD_TYPE_SDHC) {
+ firstBlock <<= 9;
+ lastBlock <<= 9;
+ }
+ if (cardCommand(CMD32, firstBlock)
+ || cardCommand(CMD33, lastBlock)
+ || cardCommand(CMD38, 0)) {
+ error(SD_CARD_ERROR_ERASE);
+ goto fail;
+ }
+ if (!waitNotBusy(SD_ERASE_TIMEOUT)) {
+ error(SD_CARD_ERROR_ERASE_TIMEOUT);
+ goto fail;
+ }
+ chipSelectHigh();
+ return true;
+
+ fail:
+ chipSelectHigh();
+ return false;
+}
+//------------------------------------------------------------------------------
+/** Determine if card supports single block erase.
+ *
+ * \return The value one, true, is returned if single block erase is supported.
+ * The value zero, false, is returned if single block erase is not supported.
+ */
+uint8_t Sd2Card::eraseSingleBlockEnable(void) {
+ csd_t csd;
+ return readCSD(&csd) ? csd.v1.erase_blk_en : 0;
+}
+//------------------------------------------------------------------------------
+/**
+ * Initialize an SD flash memory card.
+ *
+ * \param[in] sckRateID SPI clock rate selector. See setSckRate().
+ * \param[in] chipSelectPin SD chip select pin number.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure. The reason for failure
+ * can be determined by calling errorCode() and errorData().
+ */
+uint8_t Sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin) {
+ errorCode_ = inBlock_ = partialBlockRead_ = type_ = 0;
+ chipSelectPin_ = chipSelectPin;
+ // 16-bit init start time allows over a minute
+ uint16_t t0 = (uint16_t)millis();
+ uint32_t arg;
+
+ // set pin modes
+ pinMode(chipSelectPin_, OUTPUT);
+ chipSelectHigh();
+ pinMode(SPI_MISO_PIN, INPUT);
+ pinMode(SPI_MOSI_PIN, OUTPUT);
+ pinMode(SPI_SCK_PIN, OUTPUT);
+
+#ifndef SOFTWARE_SPI
+ // SS must be in output mode even it is not chip select
+ pinMode(SS_PIN, OUTPUT);
+ digitalWrite(SS_PIN, HIGH); // disable any SPI device using hardware SS pin
+ // Enable SPI, Master, clock rate f_osc/128
+ SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR1) | (1 << SPR0);
+ // clear double speed
+ SPSR &= ~(1 << SPI2X);
+#endif // SOFTWARE_SPI
+
+ // must supply min of 74 clock cycles with CS high.
+ for (uint8_t i = 0; i < 10; i++) spiSend(0XFF);
+
+ chipSelectLow();
+
+ // command to go idle in SPI mode
+ while ((status_ = cardCommand(CMD0, 0)) != R1_IDLE_STATE) {
+ if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
+ error(SD_CARD_ERROR_CMD0);
+ goto fail;
+ }
+ }
+ // check SD version
+ if ((cardCommand(CMD8, 0x1AA) & R1_ILLEGAL_COMMAND)) {
+ type(SD_CARD_TYPE_SD1);
+ } else {
+ // only need last byte of r7 response
+ for (uint8_t i = 0; i < 4; i++) status_ = spiRec();
+ if (status_ != 0XAA) {
+ error(SD_CARD_ERROR_CMD8);
+ goto fail;
+ }
+ type(SD_CARD_TYPE_SD2);
+ }
+ // initialize card and send host supports SDHC if SD2
+ arg = type() == SD_CARD_TYPE_SD2 ? 0X40000000 : 0;
+
+ while ((status_ = cardAcmd(ACMD41, arg)) != R1_READY_STATE) {
+ // check for timeout
+ if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
+ error(SD_CARD_ERROR_ACMD41);
+ goto fail;
+ }
+ }
+ // if SD2 read OCR register to check for SDHC card
+ if (type() == SD_CARD_TYPE_SD2) {
+ if (cardCommand(CMD58, 0)) {
+ error(SD_CARD_ERROR_CMD58);
+ goto fail;
+ }
+ if ((spiRec() & 0XC0) == 0XC0) type(SD_CARD_TYPE_SDHC);
+ // discard rest of ocr - contains allowed voltage range
+ for (uint8_t i = 0; i < 3; i++) spiRec();
+ }
+ chipSelectHigh();
+
+#ifndef SOFTWARE_SPI
+ return setSckRate(sckRateID);
+#else // SOFTWARE_SPI
+ return true;
+#endif // SOFTWARE_SPI
+
+ fail:
+ chipSelectHigh();
+ return false;
+}
+//------------------------------------------------------------------------------
+/**
+ * Enable or disable partial block reads.
+ *
+ * Enabling partial block reads improves performance by allowing a block
+ * to be read over the SPI bus as several sub-blocks. Errors may occur
+ * if the time between reads is too long since the SD card may timeout.
+ * The SPI SS line will be held low until the entire block is read or
+ * readEnd() is called.
+ *
+ * Use this for applications like the Adafruit Wave Shield.
+ *
+ * \param[in] value The value TRUE (non-zero) or FALSE (zero).)
+ */
+void Sd2Card::partialBlockRead(uint8_t value) {
+ readEnd();
+ partialBlockRead_ = value;
+}
+//------------------------------------------------------------------------------
+/**
+ * Read a 512 byte block from an SD card device.
+ *
+ * \param[in] block Logical block to be read.
+ * \param[out] dst Pointer to the location that will receive the data.
+
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t Sd2Card::readBlock(uint32_t block, uint8_t* dst) {
+ return readData(block, 0, 512, dst);
+}
+//------------------------------------------------------------------------------
+/**
+ * Read part of a 512 byte block from an SD card.
+ *
+ * \param[in] block Logical block to be read.
+ * \param[in] offset Number of bytes to skip at start of block
+ * \param[out] dst Pointer to the location that will receive the data.
+ * \param[in] count Number of bytes to read
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t Sd2Card::readData(uint32_t block,
+ uint16_t offset, uint16_t count, uint8_t* dst) {
+ uint16_t n;
+ if (count == 0) return true;
+ if ((count + offset) > 512) {
+ goto fail;
+ }
+ if (!inBlock_ || block != block_ || offset < offset_) {
+ block_ = block;
+ // use address if not SDHC card
+ if (type()!= SD_CARD_TYPE_SDHC) block <<= 9;
+ if (cardCommand(CMD17, block)) {
+ error(SD_CARD_ERROR_CMD17);
+ goto fail;
+ }
+ if (!waitStartBlock()) {
+ goto fail;
+ }
+ offset_ = 0;
+ inBlock_ = 1;
+ }
+
+#ifdef OPTIMIZE_HARDWARE_SPI
+ // start first spi transfer
+ SPDR = 0XFF;
+
+ // skip data before offset
+ for (;offset_ < offset; offset_++) {
+ while (!(SPSR & (1 << SPIF)));
+ SPDR = 0XFF;
+ }
+ // transfer data
+ n = count - 1;
+ for (uint16_t i = 0; i < n; i++) {
+ while (!(SPSR & (1 << SPIF)));
+ dst[i] = SPDR;
+ SPDR = 0XFF;
+ }
+ // wait for last byte
+ while (!(SPSR & (1 << SPIF)));
+ dst[n] = SPDR;
+
+#else // OPTIMIZE_HARDWARE_SPI
+
+ // skip data before offset
+ for (;offset_ < offset; offset_++) {
+ spiRec();
+ }
+ // transfer data
+ for (uint16_t i = 0; i < count; i++) {
+ dst[i] = spiRec();
+ }
+#endif // OPTIMIZE_HARDWARE_SPI
+
+ offset_ += count;
+ if (!partialBlockRead_ || offset_ >= 512) {
+ // read rest of data, checksum and set chip select high
+ readEnd();
+ }
+ return true;
+
+ fail:
+ chipSelectHigh();
+ return false;
+}
+//------------------------------------------------------------------------------
+/** Skip remaining data in a block when in partial block read mode. */
+void Sd2Card::readEnd(void) {
+ if (inBlock_) {
+ // skip data and crc
+#ifdef OPTIMIZE_HARDWARE_SPI
+ // optimize skip for hardware
+ SPDR = 0XFF;
+ while (offset_++ < 513) {
+ while (!(SPSR & (1 << SPIF)));
+ SPDR = 0XFF;
+ }
+ // wait for last crc byte
+ while (!(SPSR & (1 << SPIF)));
+#else // OPTIMIZE_HARDWARE_SPI
+ while (offset_++ < 514) spiRec();
+#endif // OPTIMIZE_HARDWARE_SPI
+ chipSelectHigh();
+ inBlock_ = 0;
+ }
+}
+//------------------------------------------------------------------------------
+/** read CID or CSR register */
+uint8_t Sd2Card::readRegister(uint8_t cmd, void* buf) {
+ uint8_t* dst = reinterpret_cast<uint8_t*>(buf);
+ if (cardCommand(cmd, 0)) {
+ error(SD_CARD_ERROR_READ_REG);
+ goto fail;
+ }
+ if (!waitStartBlock()) goto fail;
+ // transfer data
+ for (uint16_t i = 0; i < 16; i++) dst[i] = spiRec();
+ spiRec(); // get first crc byte
+ spiRec(); // get second crc byte
+ chipSelectHigh();
+ return true;
+
+ fail:
+ chipSelectHigh();
+ return false;
+}
+//------------------------------------------------------------------------------
+/**
+ * Set the SPI clock rate.
+ *
+ * \param[in] sckRateID A value in the range [0, 6].
+ *
+ * The SPI clock will be set to F_CPU/pow(2, 1 + sckRateID). The maximum
+ * SPI rate is F_CPU/2 for \a sckRateID = 0 and the minimum rate is F_CPU/128
+ * for \a scsRateID = 6.
+ *
+ * \return The value one, true, is returned for success and the value zero,
+ * false, is returned for an invalid value of \a sckRateID.
+ */
+uint8_t Sd2Card::setSckRate(uint8_t sckRateID) {
+ if (sckRateID > 6) {
+ error(SD_CARD_ERROR_SCK_RATE);
+ return false;
+ }
+ // see avr processor datasheet for SPI register bit definitions
+ if ((sckRateID & 1) || sckRateID == 6) {
+ SPSR &= ~(1 << SPI2X);
+ } else {
+ SPSR |= (1 << SPI2X);
+ }
+ SPCR &= ~((1 <<SPR1) | (1 << SPR0));
+ SPCR |= (sckRateID & 4 ? (1 << SPR1) : 0)
+ | (sckRateID & 2 ? (1 << SPR0) : 0);
+ return true;
+}
+//------------------------------------------------------------------------------
+// wait for card to go not busy
+uint8_t Sd2Card::waitNotBusy(uint16_t timeoutMillis) {
+ uint16_t t0 = millis();
+ do {
+ if (spiRec() == 0XFF) return true;
+ }
+ while (((uint16_t)millis() - t0) < timeoutMillis);
+ return false;
+}
+//------------------------------------------------------------------------------
+/** Wait for start block token */
+uint8_t Sd2Card::waitStartBlock(void) {
+ uint16_t t0 = millis();
+ while ((status_ = spiRec()) == 0XFF) {
+ if (((uint16_t)millis() - t0) > SD_READ_TIMEOUT) {
+ error(SD_CARD_ERROR_READ_TIMEOUT);
+ goto fail;
+ }
+ }
+ if (status_ != DATA_START_BLOCK) {
+ error(SD_CARD_ERROR_READ);
+ goto fail;
+ }
+ return true;
+
+ fail:
+ chipSelectHigh();
+ return false;
+}
+//------------------------------------------------------------------------------
+/**
+ * Writes a 512 byte block to an SD card.
+ *
+ * \param[in] blockNumber Logical block to be written.
+ * \param[in] src Pointer to the location of the data to be written.
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t Sd2Card::writeBlock(uint32_t blockNumber, const uint8_t* src) {
+#if SD_PROTECT_BLOCK_ZERO
+ // don't allow write to first block
+ if (blockNumber == 0) {
+ error(SD_CARD_ERROR_WRITE_BLOCK_ZERO);
+ goto fail;
+ }
+#endif // SD_PROTECT_BLOCK_ZERO
+
+ // use address if not SDHC card
+ if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9;
+ if (cardCommand(CMD24, blockNumber)) {
+ error(SD_CARD_ERROR_CMD24);
+ goto fail;
+ }
+ if (!writeData(DATA_START_BLOCK, src)) goto fail;
+
+ // wait for flash programming to complete
+ if (!waitNotBusy(SD_WRITE_TIMEOUT)) {
+ error(SD_CARD_ERROR_WRITE_TIMEOUT);
+ goto fail;
+ }
+ // response is r2 so get and check two bytes for nonzero
+ if (cardCommand(CMD13, 0) || spiRec()) {
+ error(SD_CARD_ERROR_WRITE_PROGRAMMING);
+ goto fail;
+ }
+ chipSelectHigh();
+ return true;
+
+ fail:
+ chipSelectHigh();
+ return false;
+}
+//------------------------------------------------------------------------------
+/** Write one data block in a multiple block write sequence */
+uint8_t Sd2Card::writeData(const uint8_t* src) {
+ // wait for previous write to finish
+ if (!waitNotBusy(SD_WRITE_TIMEOUT)) {
+ error(SD_CARD_ERROR_WRITE_MULTIPLE);
+ chipSelectHigh();
+ return false;
+ }
+ return writeData(WRITE_MULTIPLE_TOKEN, src);
+}
+//------------------------------------------------------------------------------
+// send one block of data for write block or write multiple blocks
+uint8_t Sd2Card::writeData(uint8_t token, const uint8_t* src) {
+#ifdef OPTIMIZE_HARDWARE_SPI
+
+ // send data - optimized loop
+ SPDR = token;
+
+ // send two byte per iteration
+ for (uint16_t i = 0; i < 512; i += 2) {
+ while (!(SPSR & (1 << SPIF)));
+ SPDR = src[i];
+ while (!(SPSR & (1 << SPIF)));
+ SPDR = src[i+1];
+ }
+
+ // wait for last data byte
+ while (!(SPSR & (1 << SPIF)));
+
+#else // OPTIMIZE_HARDWARE_SPI
+ spiSend(token);
+ for (uint16_t i = 0; i < 512; i++) {
+ spiSend(src[i]);
+ }
+#endif // OPTIMIZE_HARDWARE_SPI
+ spiSend(0xff); // dummy crc
+ spiSend(0xff); // dummy crc
+
+ status_ = spiRec();
+ if ((status_ & DATA_RES_MASK) != DATA_RES_ACCEPTED) {
+ error(SD_CARD_ERROR_WRITE);
+ chipSelectHigh();
+ return false;
+ }
+ return true;
+}
+//------------------------------------------------------------------------------
+/** Start a write multiple blocks sequence.
+ *
+ * \param[in] blockNumber Address of first block in sequence.
+ * \param[in] eraseCount The number of blocks to be pre-erased.
+ *
+ * \note This function is used with writeData() and writeStop()
+ * for optimized multiple block writes.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t Sd2Card::writeStart(uint32_t blockNumber, uint32_t eraseCount) {
+#if SD_PROTECT_BLOCK_ZERO
+ // don't allow write to first block
+ if (blockNumber == 0) {
+ error(SD_CARD_ERROR_WRITE_BLOCK_ZERO);
+ goto fail;
+ }
+#endif // SD_PROTECT_BLOCK_ZERO
+ // send pre-erase count
+ if (cardAcmd(ACMD23, eraseCount)) {
+ error(SD_CARD_ERROR_ACMD23);
+ goto fail;
+ }
+ // use address if not SDHC card
+ if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9;
+ if (cardCommand(CMD25, blockNumber)) {
+ error(SD_CARD_ERROR_CMD25);
+ goto fail;
+ }
+ return true;
+
+ fail:
+ chipSelectHigh();
+ return false;
+}
+//------------------------------------------------------------------------------
+/** End a write multiple blocks sequence.
+ *
+* \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t Sd2Card::writeStop(void) {
+ if (!waitNotBusy(SD_WRITE_TIMEOUT)) goto fail;
+ spiSend(STOP_TRAN_TOKEN);
+ if (!waitNotBusy(SD_WRITE_TIMEOUT)) goto fail;
+ chipSelectHigh();
+ return true;
+
+ fail:
+ error(SD_CARD_ERROR_STOP_TRAN);
+ chipSelectHigh();
+ return false;
+}
diff --git a/libraries/SD/utility/Sd2Card.h b/libraries/SD/utility/Sd2Card.h new file mode 100644 index 0000000..73b46fb --- /dev/null +++ b/libraries/SD/utility/Sd2Card.h @@ -0,0 +1,233 @@ +/* Arduino Sd2Card Library
+ * Copyright (C) 2009 by William Greiman
+ *
+ * This file is part of the Arduino Sd2Card Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino Sd2Card Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+#ifndef Sd2Card_h
+#define Sd2Card_h
+/**
+ * \file
+ * Sd2Card class
+ */
+#include "Sd2PinMap.h"
+#include "SdInfo.h"
+/** Set SCK to max rate of F_CPU/2. See Sd2Card::setSckRate(). */
+uint8_t const SPI_FULL_SPEED = 0;
+/** Set SCK rate to F_CPU/4. See Sd2Card::setSckRate(). */
+uint8_t const SPI_HALF_SPEED = 1;
+/** Set SCK rate to F_CPU/8. Sd2Card::setSckRate(). */
+uint8_t const SPI_QUARTER_SPEED = 2;
+/**
+ * Define MEGA_SOFT_SPI non-zero to use software SPI on Mega Arduinos.
+ * Pins used are SS 10, MOSI 11, MISO 12, and SCK 13.
+ *
+ * MEGA_SOFT_SPI allows an unmodified Adafruit GPS Shield to be used
+ * on Mega Arduinos. Software SPI works well with GPS Shield V1.1
+ * but many SD cards will fail with GPS Shield V1.0.
+ */
+#define MEGA_SOFT_SPI 0
+//------------------------------------------------------------------------------
+#if MEGA_SOFT_SPI && (defined(__AVR_ATmega1280__)||defined(__AVR_ATmega2560__))
+#define SOFTWARE_SPI
+#endif // MEGA_SOFT_SPI
+//------------------------------------------------------------------------------
+// SPI pin definitions
+//
+#ifndef SOFTWARE_SPI
+// hardware pin defs
+/**
+ * SD Chip Select pin
+ *
+ * Warning if this pin is redefined the hardware SS will pin will be enabled
+ * as an output by init(). An avr processor will not function as an SPI
+ * master unless SS is set to output mode.
+ */
+/** The default chip select pin for the SD card is SS. */
+uint8_t const SD_CHIP_SELECT_PIN = SS_PIN;
+// The following three pins must not be redefined for hardware SPI.
+/** SPI Master Out Slave In pin */
+uint8_t const SPI_MOSI_PIN = MOSI_PIN;
+/** SPI Master In Slave Out pin */
+uint8_t const SPI_MISO_PIN = MISO_PIN;
+/** SPI Clock pin */
+uint8_t const SPI_SCK_PIN = SCK_PIN;
+/** optimize loops for hardware SPI */
+#define OPTIMIZE_HARDWARE_SPI
+
+#else // SOFTWARE_SPI
+// define software SPI pins so Mega can use unmodified GPS Shield
+/** SPI chip select pin */
+uint8_t const SD_CHIP_SELECT_PIN = 10;
+/** SPI Master Out Slave In pin */
+uint8_t const SPI_MOSI_PIN = 11;
+/** SPI Master In Slave Out pin */
+uint8_t const SPI_MISO_PIN = 12;
+/** SPI Clock pin */
+uint8_t const SPI_SCK_PIN = 13;
+#endif // SOFTWARE_SPI
+//------------------------------------------------------------------------------
+/** Protect block zero from write if nonzero */
+#define SD_PROTECT_BLOCK_ZERO 1
+/** init timeout ms */
+uint16_t const SD_INIT_TIMEOUT = 2000;
+/** erase timeout ms */
+uint16_t const SD_ERASE_TIMEOUT = 10000;
+/** read timeout ms */
+uint16_t const SD_READ_TIMEOUT = 300;
+/** write time out ms */
+uint16_t const SD_WRITE_TIMEOUT = 600;
+//------------------------------------------------------------------------------
+// SD card errors
+/** timeout error for command CMD0 */
+uint8_t const SD_CARD_ERROR_CMD0 = 0X1;
+/** CMD8 was not accepted - not a valid SD card*/
+uint8_t const SD_CARD_ERROR_CMD8 = 0X2;
+/** card returned an error response for CMD17 (read block) */
+uint8_t const SD_CARD_ERROR_CMD17 = 0X3;
+/** card returned an error response for CMD24 (write block) */
+uint8_t const SD_CARD_ERROR_CMD24 = 0X4;
+/** WRITE_MULTIPLE_BLOCKS command failed */
+uint8_t const SD_CARD_ERROR_CMD25 = 0X05;
+/** card returned an error response for CMD58 (read OCR) */
+uint8_t const SD_CARD_ERROR_CMD58 = 0X06;
+/** SET_WR_BLK_ERASE_COUNT failed */
+uint8_t const SD_CARD_ERROR_ACMD23 = 0X07;
+/** card's ACMD41 initialization process timeout */
+uint8_t const SD_CARD_ERROR_ACMD41 = 0X08;
+/** card returned a bad CSR version field */
+uint8_t const SD_CARD_ERROR_BAD_CSD = 0X09;
+/** erase block group command failed */
+uint8_t const SD_CARD_ERROR_ERASE = 0X0A;
+/** card not capable of single block erase */
+uint8_t const SD_CARD_ERROR_ERASE_SINGLE_BLOCK = 0X0B;
+/** Erase sequence timed out */
+uint8_t const SD_CARD_ERROR_ERASE_TIMEOUT = 0X0C;
+/** card returned an error token instead of read data */
+uint8_t const SD_CARD_ERROR_READ = 0X0D;
+/** read CID or CSD failed */
+uint8_t const SD_CARD_ERROR_READ_REG = 0X0E;
+/** timeout while waiting for start of read data */
+uint8_t const SD_CARD_ERROR_READ_TIMEOUT = 0X0F;
+/** card did not accept STOP_TRAN_TOKEN */
+uint8_t const SD_CARD_ERROR_STOP_TRAN = 0X10;
+/** card returned an error token as a response to a write operation */
+uint8_t const SD_CARD_ERROR_WRITE = 0X11;
+/** attempt to write protected block zero */
+uint8_t const SD_CARD_ERROR_WRITE_BLOCK_ZERO = 0X12;
+/** card did not go ready for a multiple block write */
+uint8_t const SD_CARD_ERROR_WRITE_MULTIPLE = 0X13;
+/** card returned an error to a CMD13 status check after a write */
+uint8_t const SD_CARD_ERROR_WRITE_PROGRAMMING = 0X14;
+/** timeout occurred during write programming */
+uint8_t const SD_CARD_ERROR_WRITE_TIMEOUT = 0X15;
+/** incorrect rate selected */
+uint8_t const SD_CARD_ERROR_SCK_RATE = 0X16;
+//------------------------------------------------------------------------------
+// card types
+/** Standard capacity V1 SD card */
+uint8_t const SD_CARD_TYPE_SD1 = 1;
+/** Standard capacity V2 SD card */
+uint8_t const SD_CARD_TYPE_SD2 = 2;
+/** High Capacity SD card */
+uint8_t const SD_CARD_TYPE_SDHC = 3;
+//------------------------------------------------------------------------------
+/**
+ * \class Sd2Card
+ * \brief Raw access to SD and SDHC flash memory cards.
+ */
+class Sd2Card {
+ public:
+ /** Construct an instance of Sd2Card. */
+ Sd2Card(void) : errorCode_(0), inBlock_(0), partialBlockRead_(0), type_(0) {}
+ uint32_t cardSize(void);
+ uint8_t erase(uint32_t firstBlock, uint32_t lastBlock);
+ uint8_t eraseSingleBlockEnable(void);
+ /**
+ * \return error code for last error. See Sd2Card.h for a list of error codes.
+ */
+ uint8_t errorCode(void) const {return errorCode_;}
+ /** \return error data for last error. */
+ uint8_t errorData(void) const {return status_;}
+ /**
+ * Initialize an SD flash memory card with default clock rate and chip
+ * select pin. See sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin).
+ */
+ uint8_t init(void) {
+ return init(SPI_FULL_SPEED, SD_CHIP_SELECT_PIN);
+ }
+ /**
+ * Initialize an SD flash memory card with the selected SPI clock rate
+ * and the default SD chip select pin.
+ * See sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin).
+ */
+ uint8_t init(uint8_t sckRateID) {
+ return init(sckRateID, SD_CHIP_SELECT_PIN);
+ }
+ uint8_t init(uint8_t sckRateID, uint8_t chipSelectPin);
+ void partialBlockRead(uint8_t value);
+ /** Returns the current value, true or false, for partial block read. */
+ uint8_t partialBlockRead(void) const {return partialBlockRead_;}
+ uint8_t readBlock(uint32_t block, uint8_t* dst);
+ uint8_t readData(uint32_t block,
+ uint16_t offset, uint16_t count, uint8_t* dst);
+ /**
+ * Read a cards CID register. The CID contains card identification
+ * information such as Manufacturer ID, Product name, Product serial
+ * number and Manufacturing date. */
+ uint8_t readCID(cid_t* cid) {
+ return readRegister(CMD10, cid);
+ }
+ /**
+ * Read a cards CSD register. The CSD contains Card-Specific Data that
+ * provides information regarding access to the card's contents. */
+ uint8_t readCSD(csd_t* csd) {
+ return readRegister(CMD9, csd);
+ }
+ void readEnd(void);
+ uint8_t setSckRate(uint8_t sckRateID);
+ /** Return the card type: SD V1, SD V2 or SDHC */
+ uint8_t type(void) const {return type_;}
+ uint8_t writeBlock(uint32_t blockNumber, const uint8_t* src);
+ uint8_t writeData(const uint8_t* src);
+ uint8_t writeStart(uint32_t blockNumber, uint32_t eraseCount);
+ uint8_t writeStop(void);
+ private:
+ uint32_t block_;
+ uint8_t chipSelectPin_;
+ uint8_t errorCode_;
+ uint8_t inBlock_;
+ uint16_t offset_;
+ uint8_t partialBlockRead_;
+ uint8_t status_;
+ uint8_t type_;
+ // private functions
+ uint8_t cardAcmd(uint8_t cmd, uint32_t arg) {
+ cardCommand(CMD55, 0);
+ return cardCommand(cmd, arg);
+ }
+ uint8_t cardCommand(uint8_t cmd, uint32_t arg);
+ void error(uint8_t code) {errorCode_ = code;}
+ uint8_t readRegister(uint8_t cmd, void* buf);
+ uint8_t sendWriteCommand(uint32_t blockNumber, uint32_t eraseCount);
+ void chipSelectHigh(void);
+ void chipSelectLow(void);
+ void type(uint8_t value) {type_ = value;}
+ uint8_t waitNotBusy(uint16_t timeoutMillis);
+ uint8_t writeData(uint8_t token, const uint8_t* src);
+ uint8_t waitStartBlock(void);
+};
+#endif // Sd2Card_h
diff --git a/libraries/SD/utility/Sd2PinMap.h b/libraries/SD/utility/Sd2PinMap.h new file mode 100644 index 0000000..4bd75a3 --- /dev/null +++ b/libraries/SD/utility/Sd2PinMap.h @@ -0,0 +1,353 @@ +/* Arduino SdFat Library
+ * Copyright (C) 2010 by William Greiman
+ *
+ * This file is part of the Arduino SdFat Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino SdFat Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+// Warning this file was generated by a program.
+#ifndef Sd2PinMap_h
+#define Sd2PinMap_h
+#include <avr/io.h>
+
+//------------------------------------------------------------------------------
+/** struct for mapping digital pins */
+struct pin_map_t {
+ volatile uint8_t* ddr;
+ volatile uint8_t* pin;
+ volatile uint8_t* port;
+ uint8_t bit;
+};
+//------------------------------------------------------------------------------
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+// Mega
+
+// Two Wire (aka I2C) ports
+uint8_t const SDA_PIN = 20;
+uint8_t const SCL_PIN = 21;
+
+// SPI port
+uint8_t const SS_PIN = 53;
+uint8_t const MOSI_PIN = 51;
+uint8_t const MISO_PIN = 50;
+uint8_t const SCK_PIN = 52;
+
+static const pin_map_t digitalPinMap[] = {
+ {&DDRE, &PINE, &PORTE, 0}, // E0 0
+ {&DDRE, &PINE, &PORTE, 1}, // E1 1
+ {&DDRE, &PINE, &PORTE, 4}, // E4 2
+ {&DDRE, &PINE, &PORTE, 5}, // E5 3
+ {&DDRG, &PING, &PORTG, 5}, // G5 4
+ {&DDRE, &PINE, &PORTE, 3}, // E3 5
+ {&DDRH, &PINH, &PORTH, 3}, // H3 6
+ {&DDRH, &PINH, &PORTH, 4}, // H4 7
+ {&DDRH, &PINH, &PORTH, 5}, // H5 8
+ {&DDRH, &PINH, &PORTH, 6}, // H6 9
+ {&DDRB, &PINB, &PORTB, 4}, // B4 10
+ {&DDRB, &PINB, &PORTB, 5}, // B5 11
+ {&DDRB, &PINB, &PORTB, 6}, // B6 12
+ {&DDRB, &PINB, &PORTB, 7}, // B7 13
+ {&DDRJ, &PINJ, &PORTJ, 1}, // J1 14
+ {&DDRJ, &PINJ, &PORTJ, 0}, // J0 15
+ {&DDRH, &PINH, &PORTH, 1}, // H1 16
+ {&DDRH, &PINH, &PORTH, 0}, // H0 17
+ {&DDRD, &PIND, &PORTD, 3}, // D3 18
+ {&DDRD, &PIND, &PORTD, 2}, // D2 19
+ {&DDRD, &PIND, &PORTD, 1}, // D1 20
+ {&DDRD, &PIND, &PORTD, 0}, // D0 21
+ {&DDRA, &PINA, &PORTA, 0}, // A0 22
+ {&DDRA, &PINA, &PORTA, 1}, // A1 23
+ {&DDRA, &PINA, &PORTA, 2}, // A2 24
+ {&DDRA, &PINA, &PORTA, 3}, // A3 25
+ {&DDRA, &PINA, &PORTA, 4}, // A4 26
+ {&DDRA, &PINA, &PORTA, 5}, // A5 27
+ {&DDRA, &PINA, &PORTA, 6}, // A6 28
+ {&DDRA, &PINA, &PORTA, 7}, // A7 29
+ {&DDRC, &PINC, &PORTC, 7}, // C7 30
+ {&DDRC, &PINC, &PORTC, 6}, // C6 31
+ {&DDRC, &PINC, &PORTC, 5}, // C5 32
+ {&DDRC, &PINC, &PORTC, 4}, // C4 33
+ {&DDRC, &PINC, &PORTC, 3}, // C3 34
+ {&DDRC, &PINC, &PORTC, 2}, // C2 35
+ {&DDRC, &PINC, &PORTC, 1}, // C1 36
+ {&DDRC, &PINC, &PORTC, 0}, // C0 37
+ {&DDRD, &PIND, &PORTD, 7}, // D7 38
+ {&DDRG, &PING, &PORTG, 2}, // G2 39
+ {&DDRG, &PING, &PORTG, 1}, // G1 40
+ {&DDRG, &PING, &PORTG, 0}, // G0 41
+ {&DDRL, &PINL, &PORTL, 7}, // L7 42
+ {&DDRL, &PINL, &PORTL, 6}, // L6 43
+ {&DDRL, &PINL, &PORTL, 5}, // L5 44
+ {&DDRL, &PINL, &PORTL, 4}, // L4 45
+ {&DDRL, &PINL, &PORTL, 3}, // L3 46
+ {&DDRL, &PINL, &PORTL, 2}, // L2 47
+ {&DDRL, &PINL, &PORTL, 1}, // L1 48
+ {&DDRL, &PINL, &PORTL, 0}, // L0 49
+ {&DDRB, &PINB, &PORTB, 3}, // B3 50
+ {&DDRB, &PINB, &PORTB, 2}, // B2 51
+ {&DDRB, &PINB, &PORTB, 1}, // B1 52
+ {&DDRB, &PINB, &PORTB, 0}, // B0 53
+ {&DDRF, &PINF, &PORTF, 0}, // F0 54
+ {&DDRF, &PINF, &PORTF, 1}, // F1 55
+ {&DDRF, &PINF, &PORTF, 2}, // F2 56
+ {&DDRF, &PINF, &PORTF, 3}, // F3 57
+ {&DDRF, &PINF, &PORTF, 4}, // F4 58
+ {&DDRF, &PINF, &PORTF, 5}, // F5 59
+ {&DDRF, &PINF, &PORTF, 6}, // F6 60
+ {&DDRF, &PINF, &PORTF, 7}, // F7 61
+ {&DDRK, &PINK, &PORTK, 0}, // K0 62
+ {&DDRK, &PINK, &PORTK, 1}, // K1 63
+ {&DDRK, &PINK, &PORTK, 2}, // K2 64
+ {&DDRK, &PINK, &PORTK, 3}, // K3 65
+ {&DDRK, &PINK, &PORTK, 4}, // K4 66
+ {&DDRK, &PINK, &PORTK, 5}, // K5 67
+ {&DDRK, &PINK, &PORTK, 6}, // K6 68
+ {&DDRK, &PINK, &PORTK, 7} // K7 69
+};
+//------------------------------------------------------------------------------
+#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
+// Sanguino
+
+// Two Wire (aka I2C) ports
+uint8_t const SDA_PIN = 17;
+uint8_t const SCL_PIN = 18;
+
+// SPI port
+uint8_t const SS_PIN = 4;
+uint8_t const MOSI_PIN = 5;
+uint8_t const MISO_PIN = 6;
+uint8_t const SCK_PIN = 7;
+
+static const pin_map_t digitalPinMap[] = {
+ {&DDRB, &PINB, &PORTB, 0}, // B0 0
+ {&DDRB, &PINB, &PORTB, 1}, // B1 1
+ {&DDRB, &PINB, &PORTB, 2}, // B2 2
+ {&DDRB, &PINB, &PORTB, 3}, // B3 3
+ {&DDRB, &PINB, &PORTB, 4}, // B4 4
+ {&DDRB, &PINB, &PORTB, 5}, // B5 5
+ {&DDRB, &PINB, &PORTB, 6}, // B6 6
+ {&DDRB, &PINB, &PORTB, 7}, // B7 7
+ {&DDRD, &PIND, &PORTD, 0}, // D0 8
+ {&DDRD, &PIND, &PORTD, 1}, // D1 9
+ {&DDRD, &PIND, &PORTD, 2}, // D2 10
+ {&DDRD, &PIND, &PORTD, 3}, // D3 11
+ {&DDRD, &PIND, &PORTD, 4}, // D4 12
+ {&DDRD, &PIND, &PORTD, 5}, // D5 13
+ {&DDRD, &PIND, &PORTD, 6}, // D6 14
+ {&DDRD, &PIND, &PORTD, 7}, // D7 15
+ {&DDRC, &PINC, &PORTC, 0}, // C0 16
+ {&DDRC, &PINC, &PORTC, 1}, // C1 17
+ {&DDRC, &PINC, &PORTC, 2}, // C2 18
+ {&DDRC, &PINC, &PORTC, 3}, // C3 19
+ {&DDRC, &PINC, &PORTC, 4}, // C4 20
+ {&DDRC, &PINC, &PORTC, 5}, // C5 21
+ {&DDRC, &PINC, &PORTC, 6}, // C6 22
+ {&DDRC, &PINC, &PORTC, 7}, // C7 23
+ {&DDRA, &PINA, &PORTA, 7}, // A7 24
+ {&DDRA, &PINA, &PORTA, 6}, // A6 25
+ {&DDRA, &PINA, &PORTA, 5}, // A5 26
+ {&DDRA, &PINA, &PORTA, 4}, // A4 27
+ {&DDRA, &PINA, &PORTA, 3}, // A3 28
+ {&DDRA, &PINA, &PORTA, 2}, // A2 29
+ {&DDRA, &PINA, &PORTA, 1}, // A1 30
+ {&DDRA, &PINA, &PORTA, 0} // A0 31
+};
+//------------------------------------------------------------------------------
+#elif defined(__AVR_ATmega32U4__)
+// Teensy 2.0
+
+// Two Wire (aka I2C) ports
+uint8_t const SDA_PIN = 6;
+uint8_t const SCL_PIN = 5;
+
+// SPI port
+uint8_t const SS_PIN = 0;
+uint8_t const MOSI_PIN = 2;
+uint8_t const MISO_PIN = 3;
+uint8_t const SCK_PIN = 1;
+
+static const pin_map_t digitalPinMap[] = {
+ {&DDRB, &PINB, &PORTB, 0}, // B0 0
+ {&DDRB, &PINB, &PORTB, 1}, // B1 1
+ {&DDRB, &PINB, &PORTB, 2}, // B2 2
+ {&DDRB, &PINB, &PORTB, 3}, // B3 3
+ {&DDRB, &PINB, &PORTB, 7}, // B7 4
+ {&DDRD, &PIND, &PORTD, 0}, // D0 5
+ {&DDRD, &PIND, &PORTD, 1}, // D1 6
+ {&DDRD, &PIND, &PORTD, 2}, // D2 7
+ {&DDRD, &PIND, &PORTD, 3}, // D3 8
+ {&DDRC, &PINC, &PORTC, 6}, // C6 9
+ {&DDRC, &PINC, &PORTC, 7}, // C7 10
+ {&DDRD, &PIND, &PORTD, 6}, // D6 11
+ {&DDRD, &PIND, &PORTD, 7}, // D7 12
+ {&DDRB, &PINB, &PORTB, 4}, // B4 13
+ {&DDRB, &PINB, &PORTB, 5}, // B5 14
+ {&DDRB, &PINB, &PORTB, 6}, // B6 15
+ {&DDRF, &PINF, &PORTF, 7}, // F7 16
+ {&DDRF, &PINF, &PORTF, 6}, // F6 17
+ {&DDRF, &PINF, &PORTF, 5}, // F5 18
+ {&DDRF, &PINF, &PORTF, 4}, // F4 19
+ {&DDRF, &PINF, &PORTF, 1}, // F1 20
+ {&DDRF, &PINF, &PORTF, 0}, // F0 21
+ {&DDRD, &PIND, &PORTD, 4}, // D4 22
+ {&DDRD, &PIND, &PORTD, 5}, // D5 23
+ {&DDRE, &PINE, &PORTE, 6} // E6 24
+};
+//------------------------------------------------------------------------------
+#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
+// Teensy++ 1.0 & 2.0
+
+// Two Wire (aka I2C) ports
+uint8_t const SDA_PIN = 1;
+uint8_t const SCL_PIN = 0;
+
+// SPI port
+uint8_t const SS_PIN = 20;
+uint8_t const MOSI_PIN = 22;
+uint8_t const MISO_PIN = 23;
+uint8_t const SCK_PIN = 21;
+
+static const pin_map_t digitalPinMap[] = {
+ {&DDRD, &PIND, &PORTD, 0}, // D0 0
+ {&DDRD, &PIND, &PORTD, 1}, // D1 1
+ {&DDRD, &PIND, &PORTD, 2}, // D2 2
+ {&DDRD, &PIND, &PORTD, 3}, // D3 3
+ {&DDRD, &PIND, &PORTD, 4}, // D4 4
+ {&DDRD, &PIND, &PORTD, 5}, // D5 5
+ {&DDRD, &PIND, &PORTD, 6}, // D6 6
+ {&DDRD, &PIND, &PORTD, 7}, // D7 7
+ {&DDRE, &PINE, &PORTE, 0}, // E0 8
+ {&DDRE, &PINE, &PORTE, 1}, // E1 9
+ {&DDRC, &PINC, &PORTC, 0}, // C0 10
+ {&DDRC, &PINC, &PORTC, 1}, // C1 11
+ {&DDRC, &PINC, &PORTC, 2}, // C2 12
+ {&DDRC, &PINC, &PORTC, 3}, // C3 13
+ {&DDRC, &PINC, &PORTC, 4}, // C4 14
+ {&DDRC, &PINC, &PORTC, 5}, // C5 15
+ {&DDRC, &PINC, &PORTC, 6}, // C6 16
+ {&DDRC, &PINC, &PORTC, 7}, // C7 17
+ {&DDRE, &PINE, &PORTE, 6}, // E6 18
+ {&DDRE, &PINE, &PORTE, 7}, // E7 19
+ {&DDRB, &PINB, &PORTB, 0}, // B0 20
+ {&DDRB, &PINB, &PORTB, 1}, // B1 21
+ {&DDRB, &PINB, &PORTB, 2}, // B2 22
+ {&DDRB, &PINB, &PORTB, 3}, // B3 23
+ {&DDRB, &PINB, &PORTB, 4}, // B4 24
+ {&DDRB, &PINB, &PORTB, 5}, // B5 25
+ {&DDRB, &PINB, &PORTB, 6}, // B6 26
+ {&DDRB, &PINB, &PORTB, 7}, // B7 27
+ {&DDRA, &PINA, &PORTA, 0}, // A0 28
+ {&DDRA, &PINA, &PORTA, 1}, // A1 29
+ {&DDRA, &PINA, &PORTA, 2}, // A2 30
+ {&DDRA, &PINA, &PORTA, 3}, // A3 31
+ {&DDRA, &PINA, &PORTA, 4}, // A4 32
+ {&DDRA, &PINA, &PORTA, 5}, // A5 33
+ {&DDRA, &PINA, &PORTA, 6}, // A6 34
+ {&DDRA, &PINA, &PORTA, 7}, // A7 35
+ {&DDRE, &PINE, &PORTE, 4}, // E4 36
+ {&DDRE, &PINE, &PORTE, 5}, // E5 37
+ {&DDRF, &PINF, &PORTF, 0}, // F0 38
+ {&DDRF, &PINF, &PORTF, 1}, // F1 39
+ {&DDRF, &PINF, &PORTF, 2}, // F2 40
+ {&DDRF, &PINF, &PORTF, 3}, // F3 41
+ {&DDRF, &PINF, &PORTF, 4}, // F4 42
+ {&DDRF, &PINF, &PORTF, 5}, // F5 43
+ {&DDRF, &PINF, &PORTF, 6}, // F6 44
+ {&DDRF, &PINF, &PORTF, 7} // F7 45
+};
+//------------------------------------------------------------------------------
+#else // defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+// 168 and 328 Arduinos
+
+// Two Wire (aka I2C) ports
+uint8_t const SDA_PIN = 18;
+uint8_t const SCL_PIN = 19;
+
+// SPI port
+uint8_t const SS_PIN = 10;
+uint8_t const MOSI_PIN = 11;
+uint8_t const MISO_PIN = 12;
+uint8_t const SCK_PIN = 13;
+
+static const pin_map_t digitalPinMap[] = {
+ {&DDRD, &PIND, &PORTD, 0}, // D0 0
+ {&DDRD, &PIND, &PORTD, 1}, // D1 1
+ {&DDRD, &PIND, &PORTD, 2}, // D2 2
+ {&DDRD, &PIND, &PORTD, 3}, // D3 3
+ {&DDRD, &PIND, &PORTD, 4}, // D4 4
+ {&DDRD, &PIND, &PORTD, 5}, // D5 5
+ {&DDRD, &PIND, &PORTD, 6}, // D6 6
+ {&DDRD, &PIND, &PORTD, 7}, // D7 7
+ {&DDRB, &PINB, &PORTB, 0}, // B0 8
+ {&DDRB, &PINB, &PORTB, 1}, // B1 9
+ {&DDRB, &PINB, &PORTB, 2}, // B2 10
+ {&DDRB, &PINB, &PORTB, 3}, // B3 11
+ {&DDRB, &PINB, &PORTB, 4}, // B4 12
+ {&DDRB, &PINB, &PORTB, 5}, // B5 13
+ {&DDRC, &PINC, &PORTC, 0}, // C0 14
+ {&DDRC, &PINC, &PORTC, 1}, // C1 15
+ {&DDRC, &PINC, &PORTC, 2}, // C2 16
+ {&DDRC, &PINC, &PORTC, 3}, // C3 17
+ {&DDRC, &PINC, &PORTC, 4}, // C4 18
+ {&DDRC, &PINC, &PORTC, 5} // C5 19
+};
+#endif // defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+//------------------------------------------------------------------------------
+static const uint8_t digitalPinCount = sizeof(digitalPinMap)/sizeof(pin_map_t);
+
+uint8_t badPinNumber(void)
+ __attribute__((error("Pin number is too large or not a constant")));
+
+static inline __attribute__((always_inline))
+ uint8_t getPinMode(uint8_t pin) {
+ if (__builtin_constant_p(pin) && pin < digitalPinCount) {
+ return (*digitalPinMap[pin].ddr >> digitalPinMap[pin].bit) & 1;
+ } else {
+ return badPinNumber();
+ }
+}
+static inline __attribute__((always_inline))
+ void setPinMode(uint8_t pin, uint8_t mode) {
+ if (__builtin_constant_p(pin) && pin < digitalPinCount) {
+ if (mode) {
+ *digitalPinMap[pin].ddr |= 1 << digitalPinMap[pin].bit;
+ } else {
+ *digitalPinMap[pin].ddr &= ~(1 << digitalPinMap[pin].bit);
+ }
+ } else {
+ badPinNumber();
+ }
+}
+static inline __attribute__((always_inline))
+ uint8_t fastDigitalRead(uint8_t pin) {
+ if (__builtin_constant_p(pin) && pin < digitalPinCount) {
+ return (*digitalPinMap[pin].pin >> digitalPinMap[pin].bit) & 1;
+ } else {
+ return badPinNumber();
+ }
+}
+static inline __attribute__((always_inline))
+ void fastDigitalWrite(uint8_t pin, uint8_t value) {
+ if (__builtin_constant_p(pin) && pin < digitalPinCount) {
+ if (value) {
+ *digitalPinMap[pin].port |= 1 << digitalPinMap[pin].bit;
+ } else {
+ *digitalPinMap[pin].port &= ~(1 << digitalPinMap[pin].bit);
+ }
+ } else {
+ badPinNumber();
+ }
+}
+#endif // Sd2PinMap_h
diff --git a/libraries/SD/utility/SdFat.h b/libraries/SD/utility/SdFat.h new file mode 100644 index 0000000..344326f --- /dev/null +++ b/libraries/SD/utility/SdFat.h @@ -0,0 +1,547 @@ +/* Arduino SdFat Library
+ * Copyright (C) 2009 by William Greiman
+ *
+ * This file is part of the Arduino SdFat Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino SdFat Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+#ifndef SdFat_h
+#define SdFat_h
+/**
+ * \file
+ * SdFile and SdVolume classes
+ */
+#include <avr/pgmspace.h>
+#include "Sd2Card.h"
+#include "FatStructs.h"
+#include "Print.h"
+//------------------------------------------------------------------------------
+/**
+ * Allow use of deprecated functions if non-zero
+ */
+#define ALLOW_DEPRECATED_FUNCTIONS 1
+//------------------------------------------------------------------------------
+// forward declaration since SdVolume is used in SdFile
+class SdVolume;
+//==============================================================================
+// SdFile class
+
+// flags for ls()
+/** ls() flag to print modify date */
+uint8_t const LS_DATE = 1;
+/** ls() flag to print file size */
+uint8_t const LS_SIZE = 2;
+/** ls() flag for recursive list of subdirectories */
+uint8_t const LS_R = 4;
+
+// use the gnu style oflag in open()
+/** open() oflag for reading */
+uint8_t const O_READ = 0X01;
+/** open() oflag - same as O_READ */
+uint8_t const O_RDONLY = O_READ;
+/** open() oflag for write */
+uint8_t const O_WRITE = 0X02;
+/** open() oflag - same as O_WRITE */
+uint8_t const O_WRONLY = O_WRITE;
+/** open() oflag for reading and writing */
+uint8_t const O_RDWR = (O_READ | O_WRITE);
+/** open() oflag mask for access modes */
+uint8_t const O_ACCMODE = (O_READ | O_WRITE);
+/** The file offset shall be set to the end of the file prior to each write. */
+uint8_t const O_APPEND = 0X04;
+/** synchronous writes - call sync() after each write */
+uint8_t const O_SYNC = 0X08;
+/** create the file if nonexistent */
+uint8_t const O_CREAT = 0X10;
+/** If O_CREAT and O_EXCL are set, open() shall fail if the file exists */
+uint8_t const O_EXCL = 0X20;
+/** truncate the file to zero length */
+uint8_t const O_TRUNC = 0X40;
+
+// flags for timestamp
+/** set the file's last access date */
+uint8_t const T_ACCESS = 1;
+/** set the file's creation date and time */
+uint8_t const T_CREATE = 2;
+/** Set the file's write date and time */
+uint8_t const T_WRITE = 4;
+// values for type_
+/** This SdFile has not been opened. */
+uint8_t const FAT_FILE_TYPE_CLOSED = 0;
+/** SdFile for a file */
+uint8_t const FAT_FILE_TYPE_NORMAL = 1;
+/** SdFile for a FAT16 root directory */
+uint8_t const FAT_FILE_TYPE_ROOT16 = 2;
+/** SdFile for a FAT32 root directory */
+uint8_t const FAT_FILE_TYPE_ROOT32 = 3;
+/** SdFile for a subdirectory */
+uint8_t const FAT_FILE_TYPE_SUBDIR = 4;
+/** Test value for directory type */
+uint8_t const FAT_FILE_TYPE_MIN_DIR = FAT_FILE_TYPE_ROOT16;
+
+/** date field for FAT directory entry */
+static inline uint16_t FAT_DATE(uint16_t year, uint8_t month, uint8_t day) {
+ return (year - 1980) << 9 | month << 5 | day;
+}
+/** year part of FAT directory date field */
+static inline uint16_t FAT_YEAR(uint16_t fatDate) {
+ return 1980 + (fatDate >> 9);
+}
+/** month part of FAT directory date field */
+static inline uint8_t FAT_MONTH(uint16_t fatDate) {
+ return (fatDate >> 5) & 0XF;
+}
+/** day part of FAT directory date field */
+static inline uint8_t FAT_DAY(uint16_t fatDate) {
+ return fatDate & 0X1F;
+}
+/** time field for FAT directory entry */
+static inline uint16_t FAT_TIME(uint8_t hour, uint8_t minute, uint8_t second) {
+ return hour << 11 | minute << 5 | second >> 1;
+}
+/** hour part of FAT directory time field */
+static inline uint8_t FAT_HOUR(uint16_t fatTime) {
+ return fatTime >> 11;
+}
+/** minute part of FAT directory time field */
+static inline uint8_t FAT_MINUTE(uint16_t fatTime) {
+ return(fatTime >> 5) & 0X3F;
+}
+/** second part of FAT directory time field */
+static inline uint8_t FAT_SECOND(uint16_t fatTime) {
+ return 2*(fatTime & 0X1F);
+}
+/** Default date for file timestamps is 1 Jan 2000 */
+uint16_t const FAT_DEFAULT_DATE = ((2000 - 1980) << 9) | (1 << 5) | 1;
+/** Default time for file timestamp is 1 am */
+uint16_t const FAT_DEFAULT_TIME = (1 << 11);
+//------------------------------------------------------------------------------
+/**
+ * \class SdFile
+ * \brief Access FAT16 and FAT32 files on SD and SDHC cards.
+ */
+class SdFile : public Print {
+ public:
+ /** Create an instance of SdFile. */
+ SdFile(void) : type_(FAT_FILE_TYPE_CLOSED) {}
+ /**
+ * writeError is set to true if an error occurs during a write().
+ * Set writeError to false before calling print() and/or write() and check
+ * for true after calls to print() and/or write().
+ */
+ //bool writeError;
+ /**
+ * Cancel unbuffered reads for this file.
+ * See setUnbufferedRead()
+ */
+ void clearUnbufferedRead(void) {
+ flags_ &= ~F_FILE_UNBUFFERED_READ;
+ }
+ uint8_t close(void);
+ uint8_t contiguousRange(uint32_t* bgnBlock, uint32_t* endBlock);
+ uint8_t createContiguous(SdFile* dirFile,
+ const char* fileName, uint32_t size);
+ /** \return The current cluster number for a file or directory. */
+ uint32_t curCluster(void) const {return curCluster_;}
+ /** \return The current position for a file or directory. */
+ uint32_t curPosition(void) const {return curPosition_;}
+ /**
+ * Set the date/time callback function
+ *
+ * \param[in] dateTime The user's call back function. The callback
+ * function is of the form:
+ *
+ * \code
+ * void dateTime(uint16_t* date, uint16_t* time) {
+ * uint16_t year;
+ * uint8_t month, day, hour, minute, second;
+ *
+ * // User gets date and time from GPS or real-time clock here
+ *
+ * // return date using FAT_DATE macro to format fields
+ * *date = FAT_DATE(year, month, day);
+ *
+ * // return time using FAT_TIME macro to format fields
+ * *time = FAT_TIME(hour, minute, second);
+ * }
+ * \endcode
+ *
+ * Sets the function that is called when a file is created or when
+ * a file's directory entry is modified by sync(). All timestamps,
+ * access, creation, and modify, are set when a file is created.
+ * sync() maintains the last access date and last modify date/time.
+ *
+ * See the timestamp() function.
+ */
+ static void dateTimeCallback(
+ void (*dateTime)(uint16_t* date, uint16_t* time)) {
+ dateTime_ = dateTime;
+ }
+ /**
+ * Cancel the date/time callback function.
+ */
+ static void dateTimeCallbackCancel(void) {
+ // use explicit zero since NULL is not defined for Sanguino
+ dateTime_ = 0;
+ }
+ /** \return Address of the block that contains this file's directory. */
+ uint32_t dirBlock(void) const {return dirBlock_;}
+ uint8_t dirEntry(dir_t* dir);
+ /** \return Index of this file's directory in the block dirBlock. */
+ uint8_t dirIndex(void) const {return dirIndex_;}
+ static void dirName(const dir_t& dir, char* name);
+ /** \return The total number of bytes in a file or directory. */
+ uint32_t fileSize(void) const {return fileSize_;}
+ /** \return The first cluster number for a file or directory. */
+ uint32_t firstCluster(void) const {return firstCluster_;}
+ /** \return True if this is a SdFile for a directory else false. */
+ uint8_t isDir(void) const {return type_ >= FAT_FILE_TYPE_MIN_DIR;}
+ /** \return True if this is a SdFile for a file else false. */
+ uint8_t isFile(void) const {return type_ == FAT_FILE_TYPE_NORMAL;}
+ /** \return True if this is a SdFile for an open file/directory else false. */
+ uint8_t isOpen(void) const {return type_ != FAT_FILE_TYPE_CLOSED;}
+ /** \return True if this is a SdFile for a subdirectory else false. */
+ uint8_t isSubDir(void) const {return type_ == FAT_FILE_TYPE_SUBDIR;}
+ /** \return True if this is a SdFile for the root directory. */
+ uint8_t isRoot(void) const {
+ return type_ == FAT_FILE_TYPE_ROOT16 || type_ == FAT_FILE_TYPE_ROOT32;
+ }
+ void ls(uint8_t flags = 0, uint8_t indent = 0);
+ uint8_t makeDir(SdFile* dir, const char* dirName);
+ uint8_t open(SdFile* dirFile, uint16_t index, uint8_t oflag);
+ uint8_t open(SdFile* dirFile, const char* fileName, uint8_t oflag);
+
+ uint8_t openRoot(SdVolume* vol);
+ static void printDirName(const dir_t& dir, uint8_t width);
+ static void printFatDate(uint16_t fatDate);
+ static void printFatTime(uint16_t fatTime);
+ static void printTwoDigits(uint8_t v);
+ /**
+ * Read the next byte from a file.
+ *
+ * \return For success read returns the next byte in the file as an int.
+ * If an error occurs or end of file is reached -1 is returned.
+ */
+ int16_t read(void) {
+ uint8_t b;
+ return read(&b, 1) == 1 ? b : -1;
+ }
+ int16_t read(void* buf, uint16_t nbyte);
+ int8_t readDir(dir_t* dir);
+ static uint8_t remove(SdFile* dirFile, const char* fileName);
+ uint8_t remove(void);
+ /** Set the file's current position to zero. */
+ void rewind(void) {
+ curPosition_ = curCluster_ = 0;
+ }
+ uint8_t rmDir(void);
+ uint8_t rmRfStar(void);
+ /** Set the files position to current position + \a pos. See seekSet(). */
+ uint8_t seekCur(uint32_t pos) {
+ return seekSet(curPosition_ + pos);
+ }
+ /**
+ * Set the files current position to end of file. Useful to position
+ * a file for append. See seekSet().
+ */
+ uint8_t seekEnd(void) {return seekSet(fileSize_);}
+ uint8_t seekSet(uint32_t pos);
+ /**
+ * Use unbuffered reads to access this file. Used with Wave
+ * Shield ISR. Used with Sd2Card::partialBlockRead() in WaveRP.
+ *
+ * Not recommended for normal applications.
+ */
+ void setUnbufferedRead(void) {
+ if (isFile()) flags_ |= F_FILE_UNBUFFERED_READ;
+ }
+ uint8_t timestamp(uint8_t flag, uint16_t year, uint8_t month, uint8_t day,
+ uint8_t hour, uint8_t minute, uint8_t second);
+ uint8_t sync(void);
+ /** Type of this SdFile. You should use isFile() or isDir() instead of type()
+ * if possible.
+ *
+ * \return The file or directory type.
+ */
+ uint8_t type(void) const {return type_;}
+ uint8_t truncate(uint32_t size);
+ /** \return Unbuffered read flag. */
+ uint8_t unbufferedRead(void) const {
+ return flags_ & F_FILE_UNBUFFERED_READ;
+ }
+ /** \return SdVolume that contains this file. */
+ SdVolume* volume(void) const {return vol_;}
+ size_t write(uint8_t b);
+ size_t write(const void* buf, uint16_t nbyte);
+ size_t write(const char* str);
+ void write_P(PGM_P str);
+ void writeln_P(PGM_P str);
+//------------------------------------------------------------------------------
+#if ALLOW_DEPRECATED_FUNCTIONS
+// Deprecated functions - suppress cpplint warnings with NOLINT comment
+ /** \deprecated Use:
+ * uint8_t SdFile::contiguousRange(uint32_t* bgnBlock, uint32_t* endBlock);
+ */
+ uint8_t contiguousRange(uint32_t& bgnBlock, uint32_t& endBlock) { // NOLINT
+ return contiguousRange(&bgnBlock, &endBlock);
+ }
+ /** \deprecated Use:
+ * uint8_t SdFile::createContiguous(SdFile* dirFile,
+ * const char* fileName, uint32_t size)
+ */
+ uint8_t createContiguous(SdFile& dirFile, // NOLINT
+ const char* fileName, uint32_t size) {
+ return createContiguous(&dirFile, fileName, size);
+ }
+
+ /**
+ * \deprecated Use:
+ * static void SdFile::dateTimeCallback(
+ * void (*dateTime)(uint16_t* date, uint16_t* time));
+ */
+ static void dateTimeCallback(
+ void (*dateTime)(uint16_t& date, uint16_t& time)) { // NOLINT
+ oldDateTime_ = dateTime;
+ dateTime_ = dateTime ? oldToNew : 0;
+ }
+ /** \deprecated Use: uint8_t SdFile::dirEntry(dir_t* dir); */
+ uint8_t dirEntry(dir_t& dir) {return dirEntry(&dir);} // NOLINT
+ /** \deprecated Use:
+ * uint8_t SdFile::makeDir(SdFile* dir, const char* dirName);
+ */
+ uint8_t makeDir(SdFile& dir, const char* dirName) { // NOLINT
+ return makeDir(&dir, dirName);
+ }
+ /** \deprecated Use:
+ * uint8_t SdFile::open(SdFile* dirFile, const char* fileName, uint8_t oflag);
+ */
+ uint8_t open(SdFile& dirFile, // NOLINT
+ const char* fileName, uint8_t oflag) {
+ return open(&dirFile, fileName, oflag);
+ }
+ /** \deprecated Do not use in new apps */
+ uint8_t open(SdFile& dirFile, const char* fileName) { // NOLINT
+ return open(dirFile, fileName, O_RDWR);
+ }
+ /** \deprecated Use:
+ * uint8_t SdFile::open(SdFile* dirFile, uint16_t index, uint8_t oflag);
+ */
+ uint8_t open(SdFile& dirFile, uint16_t index, uint8_t oflag) { // NOLINT
+ return open(&dirFile, index, oflag);
+ }
+ /** \deprecated Use: uint8_t SdFile::openRoot(SdVolume* vol); */
+ uint8_t openRoot(SdVolume& vol) {return openRoot(&vol);} // NOLINT
+
+ /** \deprecated Use: int8_t SdFile::readDir(dir_t* dir); */
+ int8_t readDir(dir_t& dir) {return readDir(&dir);} // NOLINT
+ /** \deprecated Use:
+ * static uint8_t SdFile::remove(SdFile* dirFile, const char* fileName);
+ */
+ static uint8_t remove(SdFile& dirFile, const char* fileName) { // NOLINT
+ return remove(&dirFile, fileName);
+ }
+//------------------------------------------------------------------------------
+// rest are private
+ private:
+ static void (*oldDateTime_)(uint16_t& date, uint16_t& time); // NOLINT
+ static void oldToNew(uint16_t* date, uint16_t* time) {
+ uint16_t d;
+ uint16_t t;
+ oldDateTime_(d, t);
+ *date = d;
+ *time = t;
+ }
+#endif // ALLOW_DEPRECATED_FUNCTIONS
+ private:
+ // bits defined in flags_
+ // should be 0XF
+ static uint8_t const F_OFLAG = (O_ACCMODE | O_APPEND | O_SYNC);
+ // available bits
+ static uint8_t const F_UNUSED = 0X30;
+ // use unbuffered SD read
+ static uint8_t const F_FILE_UNBUFFERED_READ = 0X40;
+ // sync of directory entry required
+ static uint8_t const F_FILE_DIR_DIRTY = 0X80;
+
+// make sure F_OFLAG is ok
+#if ((F_UNUSED | F_FILE_UNBUFFERED_READ | F_FILE_DIR_DIRTY) & F_OFLAG)
+#error flags_ bits conflict
+#endif // flags_ bits
+
+ // private data
+ uint8_t flags_; // See above for definition of flags_ bits
+ uint8_t type_; // type of file see above for values
+ uint32_t curCluster_; // cluster for current file position
+ uint32_t curPosition_; // current file position in bytes from beginning
+ uint32_t dirBlock_; // SD block that contains directory entry for file
+ uint8_t dirIndex_; // index of entry in dirBlock 0 <= dirIndex_ <= 0XF
+ uint32_t fileSize_; // file size in bytes
+ uint32_t firstCluster_; // first cluster of file
+ SdVolume* vol_; // volume where file is located
+
+ // private functions
+ uint8_t addCluster(void);
+ uint8_t addDirCluster(void);
+ dir_t* cacheDirEntry(uint8_t action);
+ static void (*dateTime_)(uint16_t* date, uint16_t* time);
+ static uint8_t make83Name(const char* str, uint8_t* name);
+ uint8_t openCachedEntry(uint8_t cacheIndex, uint8_t oflags);
+ dir_t* readDirCache(void);
+};
+//==============================================================================
+// SdVolume class
+/**
+ * \brief Cache for an SD data block
+ */
+union cache_t {
+ /** Used to access cached file data blocks. */
+ uint8_t data[512];
+ /** Used to access cached FAT16 entries. */
+ uint16_t fat16[256];
+ /** Used to access cached FAT32 entries. */
+ uint32_t fat32[128];
+ /** Used to access cached directory entries. */
+ dir_t dir[16];
+ /** Used to access a cached MasterBoot Record. */
+ mbr_t mbr;
+ /** Used to access to a cached FAT boot sector. */
+ fbs_t fbs;
+};
+//------------------------------------------------------------------------------
+/**
+ * \class SdVolume
+ * \brief Access FAT16 and FAT32 volumes on SD and SDHC cards.
+ */
+class SdVolume {
+ public:
+ /** Create an instance of SdVolume */
+ SdVolume(void) :allocSearchStart_(2), fatType_(0) {}
+ /** Clear the cache and returns a pointer to the cache. Used by the WaveRP
+ * recorder to do raw write to the SD card. Not for normal apps.
+ */
+ static uint8_t* cacheClear(void) {
+ cacheFlush();
+ cacheBlockNumber_ = 0XFFFFFFFF;
+ return cacheBuffer_.data;
+ }
+ /**
+ * Initialize a FAT volume. Try partition one first then try super
+ * floppy format.
+ *
+ * \param[in] dev The Sd2Card where the volume is located.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure. Reasons for
+ * failure include not finding a valid partition, not finding a valid
+ * FAT file system or an I/O error.
+ */
+ uint8_t init(Sd2Card* dev) { return init(dev, 1) ? true : init(dev, 0);}
+ uint8_t init(Sd2Card* dev, uint8_t part);
+
+ // inline functions that return volume info
+ /** \return The volume's cluster size in blocks. */
+ uint8_t blocksPerCluster(void) const {return blocksPerCluster_;}
+ /** \return The number of blocks in one FAT. */
+ uint32_t blocksPerFat(void) const {return blocksPerFat_;}
+ /** \return The total number of clusters in the volume. */
+ uint32_t clusterCount(void) const {return clusterCount_;}
+ /** \return The shift count required to multiply by blocksPerCluster. */
+ uint8_t clusterSizeShift(void) const {return clusterSizeShift_;}
+ /** \return The logical block number for the start of file data. */
+ uint32_t dataStartBlock(void) const {return dataStartBlock_;}
+ /** \return The number of FAT structures on the volume. */
+ uint8_t fatCount(void) const {return fatCount_;}
+ /** \return The logical block number for the start of the first FAT. */
+ uint32_t fatStartBlock(void) const {return fatStartBlock_;}
+ /** \return The FAT type of the volume. Values are 12, 16 or 32. */
+ uint8_t fatType(void) const {return fatType_;}
+ /** \return The number of entries in the root directory for FAT16 volumes. */
+ uint32_t rootDirEntryCount(void) const {return rootDirEntryCount_;}
+ /** \return The logical block number for the start of the root directory
+ on FAT16 volumes or the first cluster number on FAT32 volumes. */
+ uint32_t rootDirStart(void) const {return rootDirStart_;}
+ /** return a pointer to the Sd2Card object for this volume */
+ static Sd2Card* sdCard(void) {return sdCard_;}
+//------------------------------------------------------------------------------
+#if ALLOW_DEPRECATED_FUNCTIONS
+ // Deprecated functions - suppress cpplint warnings with NOLINT comment
+ /** \deprecated Use: uint8_t SdVolume::init(Sd2Card* dev); */
+ uint8_t init(Sd2Card& dev) {return init(&dev);} // NOLINT
+
+ /** \deprecated Use: uint8_t SdVolume::init(Sd2Card* dev, uint8_t vol); */
+ uint8_t init(Sd2Card& dev, uint8_t part) { // NOLINT
+ return init(&dev, part);
+ }
+#endif // ALLOW_DEPRECATED_FUNCTIONS
+//------------------------------------------------------------------------------
+ private:
+ // Allow SdFile access to SdVolume private data.
+ friend class SdFile;
+
+ // value for action argument in cacheRawBlock to indicate read from cache
+ static uint8_t const CACHE_FOR_READ = 0;
+ // value for action argument in cacheRawBlock to indicate cache dirty
+ static uint8_t const CACHE_FOR_WRITE = 1;
+
+ static cache_t cacheBuffer_; // 512 byte cache for device blocks
+ static uint32_t cacheBlockNumber_; // Logical number of block in the cache
+ static Sd2Card* sdCard_; // Sd2Card object for cache
+ static uint8_t cacheDirty_; // cacheFlush() will write block if true
+ static uint32_t cacheMirrorBlock_; // block number for mirror FAT
+//
+ uint32_t allocSearchStart_; // start cluster for alloc search
+ uint8_t blocksPerCluster_; // cluster size in blocks
+ uint32_t blocksPerFat_; // FAT size in blocks
+ uint32_t clusterCount_; // clusters in one FAT
+ uint8_t clusterSizeShift_; // shift to convert cluster count to block count
+ uint32_t dataStartBlock_; // first data block number
+ uint8_t fatCount_; // number of FATs on volume
+ uint32_t fatStartBlock_; // start block for first FAT
+ uint8_t fatType_; // volume type (12, 16, OR 32)
+ uint16_t rootDirEntryCount_; // number of entries in FAT16 root dir
+ uint32_t rootDirStart_; // root start block for FAT16, cluster for FAT32
+ //----------------------------------------------------------------------------
+ uint8_t allocContiguous(uint32_t count, uint32_t* curCluster);
+ uint8_t blockOfCluster(uint32_t position) const {
+ return (position >> 9) & (blocksPerCluster_ - 1);}
+ uint32_t clusterStartBlock(uint32_t cluster) const {
+ return dataStartBlock_ + ((cluster - 2) << clusterSizeShift_);}
+ uint32_t blockNumber(uint32_t cluster, uint32_t position) const {
+ return clusterStartBlock(cluster) + blockOfCluster(position);}
+ static uint8_t cacheFlush(void);
+ static uint8_t cacheRawBlock(uint32_t blockNumber, uint8_t action);
+ static void cacheSetDirty(void) {cacheDirty_ |= CACHE_FOR_WRITE;}
+ static uint8_t cacheZeroBlock(uint32_t blockNumber);
+ uint8_t chainSize(uint32_t beginCluster, uint32_t* size) const;
+ uint8_t fatGet(uint32_t cluster, uint32_t* value) const;
+ uint8_t fatPut(uint32_t cluster, uint32_t value);
+ uint8_t fatPutEOC(uint32_t cluster) {
+ return fatPut(cluster, 0x0FFFFFFF);
+ }
+ uint8_t freeChain(uint32_t cluster);
+ uint8_t isEOC(uint32_t cluster) const {
+ return cluster >= (fatType_ == 16 ? FAT16EOC_MIN : FAT32EOC_MIN);
+ }
+ uint8_t readBlock(uint32_t block, uint8_t* dst) {
+ return sdCard_->readBlock(block, dst);}
+ uint8_t readData(uint32_t block, uint16_t offset,
+ uint16_t count, uint8_t* dst) {
+ return sdCard_->readData(block, offset, count, dst);
+ }
+ uint8_t writeBlock(uint32_t block, const uint8_t* dst) {
+ return sdCard_->writeBlock(block, dst);
+ }
+};
+#endif // SdFat_h
diff --git a/libraries/SD/utility/SdFatUtil.h b/libraries/SD/utility/SdFatUtil.h new file mode 100644 index 0000000..283fcb2 --- /dev/null +++ b/libraries/SD/utility/SdFatUtil.h @@ -0,0 +1,71 @@ +/* Arduino SdFat Library
+ * Copyright (C) 2008 by William Greiman
+ *
+ * This file is part of the Arduino SdFat Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino SdFat Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+#ifndef SdFatUtil_h
+#define SdFatUtil_h
+/**
+ * \file
+ * Useful utility functions.
+ */
+#include <Arduino.h>
+#include <avr/pgmspace.h>
+/** Store and print a string in flash memory.*/
+#define PgmPrint(x) SerialPrint_P(PSTR(x))
+/** Store and print a string in flash memory followed by a CR/LF.*/
+#define PgmPrintln(x) SerialPrintln_P(PSTR(x))
+/** Defined so doxygen works for function definitions. */
+#define NOINLINE __attribute__((noinline,unused))
+#define UNUSEDOK __attribute__((unused))
+//------------------------------------------------------------------------------
+/** Return the number of bytes currently free in RAM. */
+static UNUSEDOK int FreeRam(void) {
+ extern int __bss_end;
+ extern int* __brkval;
+ int free_memory;
+ if (reinterpret_cast<int>(__brkval) == 0) {
+ // if no heap use from end of bss section
+ free_memory = reinterpret_cast<int>(&free_memory)
+ - reinterpret_cast<int>(&__bss_end);
+ } else {
+ // use from top of stack to heap
+ free_memory = reinterpret_cast<int>(&free_memory)
+ - reinterpret_cast<int>(__brkval);
+ }
+ return free_memory;
+}
+//------------------------------------------------------------------------------
+/**
+ * %Print a string in flash memory to the serial port.
+ *
+ * \param[in] str Pointer to string stored in flash memory.
+ */
+static NOINLINE void SerialPrint_P(PGM_P str) {
+ for (uint8_t c; (c = pgm_read_byte(str)); str++) Serial.print(c);
+}
+//------------------------------------------------------------------------------
+/**
+ * %Print a string in flash memory followed by a CR/LF.
+ *
+ * \param[in] str Pointer to string stored in flash memory.
+ */
+static NOINLINE void SerialPrintln_P(PGM_P str) {
+ SerialPrint_P(str);
+ Serial.println();
+}
+#endif // #define SdFatUtil_h
diff --git a/libraries/SD/utility/SdFatmainpage.h b/libraries/SD/utility/SdFatmainpage.h new file mode 100644 index 0000000..73b3b63 --- /dev/null +++ b/libraries/SD/utility/SdFatmainpage.h @@ -0,0 +1,202 @@ +/* Arduino SdFat Library
+ * Copyright (C) 2009 by William Greiman
+ *
+ * This file is part of the Arduino SdFat Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino SdFat Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+/**
+\mainpage Arduino SdFat Library
+<CENTER>Copyright © 2009 by William Greiman
+</CENTER>
+
+\section Intro Introduction
+The Arduino SdFat Library is a minimal implementation of FAT16 and FAT32
+file systems on SD flash memory cards. Standard SD and high capacity
+SDHC cards are supported.
+
+The SdFat only supports short 8.3 names.
+
+The main classes in SdFat are Sd2Card, SdVolume, and SdFile.
+
+The Sd2Card class supports access to standard SD cards and SDHC cards. Most
+applications will only need to call the Sd2Card::init() member function.
+
+The SdVolume class supports FAT16 and FAT32 partitions. Most applications
+will only need to call the SdVolume::init() member function.
+
+The SdFile class provides file access functions such as open(), read(),
+remove(), write(), close() and sync(). This class supports access to the root
+directory and subdirectories.
+
+A number of example are provided in the SdFat/examples folder. These were
+developed to test SdFat and illustrate its use.
+
+SdFat was developed for high speed data recording. SdFat was used to implement
+an audio record/play class, WaveRP, for the Adafruit Wave Shield. This
+application uses special Sd2Card calls to write to contiguous files in raw mode.
+These functions reduce write latency so that audio can be recorded with the
+small amount of RAM in the Arduino.
+
+\section SDcard SD\SDHC Cards
+
+Arduinos access SD cards using the cards SPI protocol. PCs, Macs, and
+most consumer devices use the 4-bit parallel SD protocol. A card that
+functions well on A PC or Mac may not work well on the Arduino.
+
+Most cards have good SPI read performance but cards vary widely in SPI
+write performance. Write performance is limited by how efficiently the
+card manages internal erase/remapping operations. The Arduino cannot
+optimize writes to reduce erase operations because of its limit RAM.
+
+SanDisk cards generally have good write performance. They seem to have
+more internal RAM buffering than other cards and therefore can limit
+the number of flash erase operations that the Arduino forces due to its
+limited RAM.
+
+\section Hardware Hardware Configuration
+
+SdFat was developed using an
+<A HREF = "http://www.adafruit.com/"> Adafruit Industries</A>
+<A HREF = "http://www.ladyada.net/make/waveshield/"> Wave Shield</A>.
+
+The hardware interface to the SD card should not use a resistor based level
+shifter. SdFat sets the SPI bus frequency to 8 MHz which results in signal
+rise times that are too slow for the edge detectors in many newer SD card
+controllers when resistor voltage dividers are used.
+
+The 5 to 3.3 V level shifter for 5 V Arduinos should be IC based like the
+74HC4050N based circuit shown in the file SdLevel.png. The Adafruit Wave Shield
+uses a 74AHC125N. Gravitech sells SD and MicroSD Card Adapters based on the
+74LCX245.
+
+If you are using a resistor based level shifter and are having problems try
+setting the SPI bus frequency to 4 MHz. This can be done by using
+card.init(SPI_HALF_SPEED) to initialize the SD card.
+
+\section comment Bugs and Comments
+
+If you wish to report bugs or have comments, send email to fat16lib@sbcglobal.net.
+
+\section SdFatClass SdFat Usage
+
+SdFat uses a slightly restricted form of short names.
+Only printable ASCII characters are supported. No characters with code point
+values greater than 127 are allowed. Space is not allowed even though space
+was allowed in the API of early versions of DOS.
+
+Short names are limited to 8 characters followed by an optional period (.)
+and extension of up to 3 characters. The characters may be any combination
+of letters and digits. The following special characters are also allowed:
+
+$ % ' - _ @ ~ ` ! ( ) { } ^ # &
+
+Short names are always converted to upper case and their original case
+value is lost.
+
+\note
+ The Arduino Print class uses character
+at a time writes so it was necessary to use a \link SdFile::sync() sync() \endlink
+function to control when data is written to the SD card.
+
+\par
+An application which writes to a file using \link Print::print() print()\endlink,
+\link Print::println() println() \endlink
+or \link SdFile::write write() \endlink must call \link SdFile::sync() sync() \endlink
+at the appropriate time to force data and directory information to be written
+to the SD Card. Data and directory information are also written to the SD card
+when \link SdFile::close() close() \endlink is called.
+
+\par
+Applications must use care calling \link SdFile::sync() sync() \endlink
+since 2048 bytes of I/O is required to update file and
+directory information. This includes writing the current data block, reading
+the block that contains the directory entry for update, writing the directory
+block back and reading back the current data block.
+
+It is possible to open a file with two or more instances of SdFile. A file may
+be corrupted if data is written to the file by more than one instance of SdFile.
+
+\section HowTo How to format SD Cards as FAT Volumes
+
+You should use a freshly formatted SD card for best performance. FAT
+file systems become slower if many files have been created and deleted.
+This is because the directory entry for a deleted file is marked as deleted,
+but is not deleted. When a new file is created, these entries must be scanned
+before creating the file, a flaw in the FAT design. Also files can become
+fragmented which causes reads and writes to be slower.
+
+Microsoft operating systems support removable media formatted with a
+Master Boot Record, MBR, or formatted as a super floppy with a FAT Boot Sector
+in block zero.
+
+Microsoft operating systems expect MBR formatted removable media
+to have only one partition. The first partition should be used.
+
+Microsoft operating systems do not support partitioning SD flash cards.
+If you erase an SD card with a program like KillDisk, Most versions of
+Windows will format the card as a super floppy.
+
+The best way to restore an SD card's format is to use SDFormatter
+which can be downloaded from:
+
+http://www.sdcard.org/consumers/formatter/
+
+SDFormatter aligns flash erase boundaries with file
+system structures which reduces write latency and file system overhead.
+
+SDFormatter does not have an option for FAT type so it may format
+small cards as FAT12.
+
+After the MBR is restored by SDFormatter you may need to reformat small
+cards that have been formatted FAT12 to force the volume type to be FAT16.
+
+If you reformat the SD card with an OS utility, choose a cluster size that
+will result in:
+
+4084 < CountOfClusters && CountOfClusters < 65525
+
+The volume will then be FAT16.
+
+If you are formatting an SD card on OS X or Linux, be sure to use the first
+partition. Format this partition with a cluster count in above range.
+
+\section References References
+
+Adafruit Industries:
+
+http://www.adafruit.com/
+
+http://www.ladyada.net/make/waveshield/
+
+The Arduino site:
+
+http://www.arduino.cc/
+
+For more information about FAT file systems see:
+
+http://www.microsoft.com/whdc/system/platform/firmware/fatgen.mspx
+
+For information about using SD cards as SPI devices see:
+
+http://www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf
+
+The ATmega328 datasheet:
+
+http://www.atmel.com/dyn/resources/prod_documents/doc8161.pdf
+
+
+ */
diff --git a/libraries/SD/utility/SdFile.cpp b/libraries/SD/utility/SdFile.cpp new file mode 100644 index 0000000..e786f56 --- /dev/null +++ b/libraries/SD/utility/SdFile.cpp @@ -0,0 +1,1253 @@ +/* Arduino SdFat Library
+ * Copyright (C) 2009 by William Greiman
+ *
+ * This file is part of the Arduino SdFat Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino SdFat Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+#include <SdFat.h>
+#include <avr/pgmspace.h>
+#include <Arduino.h>
+//------------------------------------------------------------------------------
+// callback function for date/time
+void (*SdFile::dateTime_)(uint16_t* date, uint16_t* time) = NULL;
+
+#if ALLOW_DEPRECATED_FUNCTIONS
+// suppress cpplint warnings with NOLINT comment
+void (*SdFile::oldDateTime_)(uint16_t& date, uint16_t& time) = NULL; // NOLINT
+#endif // ALLOW_DEPRECATED_FUNCTIONS
+//------------------------------------------------------------------------------
+// add a cluster to a file
+uint8_t SdFile::addCluster() {
+ if (!vol_->allocContiguous(1, &curCluster_)) return false;
+
+ // if first cluster of file link to directory entry
+ if (firstCluster_ == 0) {
+ firstCluster_ = curCluster_;
+ flags_ |= F_FILE_DIR_DIRTY;
+ }
+ return true;
+}
+//------------------------------------------------------------------------------
+// Add a cluster to a directory file and zero the cluster.
+// return with first block of cluster in the cache
+uint8_t SdFile::addDirCluster(void) {
+ if (!addCluster()) return false;
+
+ // zero data in cluster insure first cluster is in cache
+ uint32_t block = vol_->clusterStartBlock(curCluster_);
+ for (uint8_t i = vol_->blocksPerCluster_; i != 0; i--) {
+ if (!SdVolume::cacheZeroBlock(block + i - 1)) return false;
+ }
+ // Increase directory file size by cluster size
+ fileSize_ += 512UL << vol_->clusterSizeShift_;
+ return true;
+}
+//------------------------------------------------------------------------------
+// cache a file's directory entry
+// return pointer to cached entry or null for failure
+dir_t* SdFile::cacheDirEntry(uint8_t action) {
+ if (!SdVolume::cacheRawBlock(dirBlock_, action)) return NULL;
+ return SdVolume::cacheBuffer_.dir + dirIndex_;
+}
+//------------------------------------------------------------------------------
+/**
+ * Close a file and force cached data and directory information
+ * to be written to the storage device.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include no file is open or an I/O error.
+ */
+uint8_t SdFile::close(void) {
+ if (!sync())return false;
+ type_ = FAT_FILE_TYPE_CLOSED;
+ return true;
+}
+//------------------------------------------------------------------------------
+/**
+ * Check for contiguous file and return its raw block range.
+ *
+ * \param[out] bgnBlock the first block address for the file.
+ * \param[out] endBlock the last block address for the file.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include file is not contiguous, file has zero length
+ * or an I/O error occurred.
+ */
+uint8_t SdFile::contiguousRange(uint32_t* bgnBlock, uint32_t* endBlock) {
+ // error if no blocks
+ if (firstCluster_ == 0) return false;
+
+ for (uint32_t c = firstCluster_; ; c++) {
+ uint32_t next;
+ if (!vol_->fatGet(c, &next)) return false;
+
+ // check for contiguous
+ if (next != (c + 1)) {
+ // error if not end of chain
+ if (!vol_->isEOC(next)) return false;
+ *bgnBlock = vol_->clusterStartBlock(firstCluster_);
+ *endBlock = vol_->clusterStartBlock(c)
+ + vol_->blocksPerCluster_ - 1;
+ return true;
+ }
+ }
+}
+//------------------------------------------------------------------------------
+/**
+ * Create and open a new contiguous file of a specified size.
+ *
+ * \note This function only supports short DOS 8.3 names.
+ * See open() for more information.
+ *
+ * \param[in] dirFile The directory where the file will be created.
+ * \param[in] fileName A valid DOS 8.3 file name.
+ * \param[in] size The desired file size.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include \a fileName contains
+ * an invalid DOS 8.3 file name, the FAT volume has not been initialized,
+ * a file is already open, the file already exists, the root
+ * directory is full or an I/O error.
+ *
+ */
+uint8_t SdFile::createContiguous(SdFile* dirFile,
+ const char* fileName, uint32_t size) {
+ // don't allow zero length file
+ if (size == 0) return false;
+ if (!open(dirFile, fileName, O_CREAT | O_EXCL | O_RDWR)) return false;
+
+ // calculate number of clusters needed
+ uint32_t count = ((size - 1) >> (vol_->clusterSizeShift_ + 9)) + 1;
+
+ // allocate clusters
+ if (!vol_->allocContiguous(count, &firstCluster_)) {
+ remove();
+ return false;
+ }
+ fileSize_ = size;
+
+ // insure sync() will update dir entry
+ flags_ |= F_FILE_DIR_DIRTY;
+ return sync();
+}
+//------------------------------------------------------------------------------
+/**
+ * Return a files directory entry
+ *
+ * \param[out] dir Location for return of the files directory entry.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t SdFile::dirEntry(dir_t* dir) {
+ // make sure fields on SD are correct
+ if (!sync()) return false;
+
+ // read entry
+ dir_t* p = cacheDirEntry(SdVolume::CACHE_FOR_READ);
+ if (!p) return false;
+
+ // copy to caller's struct
+ memcpy(dir, p, sizeof(dir_t));
+ return true;
+}
+//------------------------------------------------------------------------------
+/**
+ * Format the name field of \a dir into the 13 byte array
+ * \a name in standard 8.3 short name format.
+ *
+ * \param[in] dir The directory structure containing the name.
+ * \param[out] name A 13 byte char array for the formatted name.
+ */
+void SdFile::dirName(const dir_t& dir, char* name) {
+ uint8_t j = 0;
+ for (uint8_t i = 0; i < 11; i++) {
+ if (dir.name[i] == ' ')continue;
+ if (i == 8) name[j++] = '.';
+ name[j++] = dir.name[i];
+ }
+ name[j] = 0;
+}
+//------------------------------------------------------------------------------
+/** List directory contents to Serial.
+ *
+ * \param[in] flags The inclusive OR of
+ *
+ * LS_DATE - %Print file modification date
+ *
+ * LS_SIZE - %Print file size.
+ *
+ * LS_R - Recursive list of subdirectories.
+ *
+ * \param[in] indent Amount of space before file name. Used for recursive
+ * list to indicate subdirectory level.
+ */
+void SdFile::ls(uint8_t flags, uint8_t indent) {
+ dir_t* p;
+
+ rewind();
+ while ((p = readDirCache())) {
+ // done if past last used entry
+ if (p->name[0] == DIR_NAME_FREE) break;
+
+ // skip deleted entry and entries for . and ..
+ if (p->name[0] == DIR_NAME_DELETED || p->name[0] == '.') continue;
+
+ // only list subdirectories and files
+ if (!DIR_IS_FILE_OR_SUBDIR(p)) continue;
+
+ // print any indent spaces
+ for (int8_t i = 0; i < indent; i++) Serial.print(' ');
+
+ // print file name with possible blank fill
+ printDirName(*p, flags & (LS_DATE | LS_SIZE) ? 14 : 0);
+
+ // print modify date/time if requested
+ if (flags & LS_DATE) {
+ printFatDate(p->lastWriteDate);
+ Serial.print(' ');
+ printFatTime(p->lastWriteTime);
+ }
+ // print size if requested
+ if (!DIR_IS_SUBDIR(p) && (flags & LS_SIZE)) {
+ Serial.print(' ');
+ Serial.print(p->fileSize);
+ }
+ Serial.println();
+
+ // list subdirectory content if requested
+ if ((flags & LS_R) && DIR_IS_SUBDIR(p)) {
+ uint16_t index = curPosition()/32 - 1;
+ SdFile s;
+ if (s.open(this, index, O_READ)) s.ls(flags, indent + 2);
+ seekSet(32 * (index + 1));
+ }
+ }
+}
+//------------------------------------------------------------------------------
+// format directory name field from a 8.3 name string
+uint8_t SdFile::make83Name(const char* str, uint8_t* name) {
+ uint8_t c;
+ uint8_t n = 7; // max index for part before dot
+ uint8_t i = 0;
+ // blank fill name and extension
+ while (i < 11) name[i++] = ' ';
+ i = 0;
+ while ((c = *str++) != '\0') {
+ if (c == '.') {
+ if (n == 10) return false; // only one dot allowed
+ n = 10; // max index for full 8.3 name
+ i = 8; // place for extension
+ } else {
+ // illegal FAT characters
+ PGM_P p = PSTR("|<>^+=?/[];,*\"\\");
+ uint8_t b;
+ while ((b = pgm_read_byte(p++))) if (b == c) return false;
+ // check size and only allow ASCII printable characters
+ if (i > n || c < 0X21 || c > 0X7E)return false;
+ // only upper case allowed in 8.3 names - convert lower to upper
+ name[i++] = c < 'a' || c > 'z' ? c : c + ('A' - 'a');
+ }
+ }
+ // must have a file name, extension is optional
+ return name[0] != ' ';
+}
+//------------------------------------------------------------------------------
+/** Make a new directory.
+ *
+ * \param[in] dir An open SdFat instance for the directory that will containing
+ * the new directory.
+ *
+ * \param[in] dirName A valid 8.3 DOS name for the new directory.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include this SdFile is already open, \a dir is not a
+ * directory, \a dirName is invalid or already exists in \a dir.
+ */
+uint8_t SdFile::makeDir(SdFile* dir, const char* dirName) {
+ dir_t d;
+
+ // create a normal file
+ if (!open(dir, dirName, O_CREAT | O_EXCL | O_RDWR)) return false;
+
+ // convert SdFile to directory
+ flags_ = O_READ;
+ type_ = FAT_FILE_TYPE_SUBDIR;
+
+ // allocate and zero first cluster
+ if (!addDirCluster())return false;
+
+ // force entry to SD
+ if (!sync()) return false;
+
+ // cache entry - should already be in cache due to sync() call
+ dir_t* p = cacheDirEntry(SdVolume::CACHE_FOR_WRITE);
+ if (!p) return false;
+
+ // change directory entry attribute
+ p->attributes = DIR_ATT_DIRECTORY;
+
+ // make entry for '.'
+ memcpy(&d, p, sizeof(d));
+ for (uint8_t i = 1; i < 11; i++) d.name[i] = ' ';
+ d.name[0] = '.';
+
+ // cache block for '.' and '..'
+ uint32_t block = vol_->clusterStartBlock(firstCluster_);
+ if (!SdVolume::cacheRawBlock(block, SdVolume::CACHE_FOR_WRITE)) return false;
+
+ // copy '.' to block
+ memcpy(&SdVolume::cacheBuffer_.dir[0], &d, sizeof(d));
+
+ // make entry for '..'
+ d.name[1] = '.';
+ if (dir->isRoot()) {
+ d.firstClusterLow = 0;
+ d.firstClusterHigh = 0;
+ } else {
+ d.firstClusterLow = dir->firstCluster_ & 0XFFFF;
+ d.firstClusterHigh = dir->firstCluster_ >> 16;
+ }
+ // copy '..' to block
+ memcpy(&SdVolume::cacheBuffer_.dir[1], &d, sizeof(d));
+
+ // set position after '..'
+ curPosition_ = 2 * sizeof(d);
+
+ // write first block
+ return SdVolume::cacheFlush();
+}
+//------------------------------------------------------------------------------
+/**
+ * Open a file or directory by name.
+ *
+ * \param[in] dirFile An open SdFat instance for the directory containing the
+ * file to be opened.
+ *
+ * \param[in] fileName A valid 8.3 DOS name for a file to be opened.
+ *
+ * \param[in] oflag Values for \a oflag are constructed by a bitwise-inclusive
+ * OR of flags from the following list
+ *
+ * O_READ - Open for reading.
+ *
+ * O_RDONLY - Same as O_READ.
+ *
+ * O_WRITE - Open for writing.
+ *
+ * O_WRONLY - Same as O_WRITE.
+ *
+ * O_RDWR - Open for reading and writing.
+ *
+ * O_APPEND - If set, the file offset shall be set to the end of the
+ * file prior to each write.
+ *
+ * O_CREAT - If the file exists, this flag has no effect except as noted
+ * under O_EXCL below. Otherwise, the file shall be created
+ *
+ * O_EXCL - If O_CREAT and O_EXCL are set, open() shall fail if the file exists.
+ *
+ * O_SYNC - Call sync() after each write. This flag should not be used with
+ * write(uint8_t), write_P(PGM_P), writeln_P(PGM_P), or the Arduino Print class.
+ * These functions do character at a time writes so sync() will be called
+ * after each byte.
+ *
+ * O_TRUNC - If the file exists and is a regular file, and the file is
+ * successfully opened and is not read only, its length shall be truncated to 0.
+ *
+ * \note Directory files must be opened read only. Write and truncation is
+ * not allowed for directory files.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include this SdFile is already open, \a difFile is not
+ * a directory, \a fileName is invalid, the file does not exist
+ * or can't be opened in the access mode specified by oflag.
+ */
+uint8_t SdFile::open(SdFile* dirFile, const char* fileName, uint8_t oflag) {
+ uint8_t dname[11];
+ dir_t* p;
+
+ // error if already open
+ if (isOpen())return false;
+
+ if (!make83Name(fileName, dname)) return false;
+ vol_ = dirFile->vol_;
+ dirFile->rewind();
+
+ // bool for empty entry found
+ uint8_t emptyFound = false;
+
+ // search for file
+ while (dirFile->curPosition_ < dirFile->fileSize_) {
+ uint8_t index = 0XF & (dirFile->curPosition_ >> 5);
+ p = dirFile->readDirCache();
+ if (p == NULL) return false;
+
+ if (p->name[0] == DIR_NAME_FREE || p->name[0] == DIR_NAME_DELETED) {
+ // remember first empty slot
+ if (!emptyFound) {
+ emptyFound = true;
+ dirIndex_ = index;
+ dirBlock_ = SdVolume::cacheBlockNumber_;
+ }
+ // done if no entries follow
+ if (p->name[0] == DIR_NAME_FREE) break;
+ } else if (!memcmp(dname, p->name, 11)) {
+ // don't open existing file if O_CREAT and O_EXCL
+ if ((oflag & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) return false;
+
+ // open found file
+ return openCachedEntry(0XF & index, oflag);
+ }
+ }
+ // only create file if O_CREAT and O_WRITE
+ if ((oflag & (O_CREAT | O_WRITE)) != (O_CREAT | O_WRITE)) return false;
+
+ // cache found slot or add cluster if end of file
+ if (emptyFound) {
+ p = cacheDirEntry(SdVolume::CACHE_FOR_WRITE);
+ if (!p) return false;
+ } else {
+ if (dirFile->type_ == FAT_FILE_TYPE_ROOT16) return false;
+
+ // add and zero cluster for dirFile - first cluster is in cache for write
+ if (!dirFile->addDirCluster()) return false;
+
+ // use first entry in cluster
+ dirIndex_ = 0;
+ p = SdVolume::cacheBuffer_.dir;
+ }
+ // initialize as empty file
+ memset(p, 0, sizeof(dir_t));
+ memcpy(p->name, dname, 11);
+
+ // set timestamps
+ if (dateTime_) {
+ // call user function
+ dateTime_(&p->creationDate, &p->creationTime);
+ } else {
+ // use default date/time
+ p->creationDate = FAT_DEFAULT_DATE;
+ p->creationTime = FAT_DEFAULT_TIME;
+ }
+ p->lastAccessDate = p->creationDate;
+ p->lastWriteDate = p->creationDate;
+ p->lastWriteTime = p->creationTime;
+
+ // force write of entry to SD
+ if (!SdVolume::cacheFlush()) return false;
+
+ // open entry in cache
+ return openCachedEntry(dirIndex_, oflag);
+}
+//------------------------------------------------------------------------------
+/**
+ * Open a file by index.
+ *
+ * \param[in] dirFile An open SdFat instance for the directory.
+ *
+ * \param[in] index The \a index of the directory entry for the file to be
+ * opened. The value for \a index is (directory file position)/32.
+ *
+ * \param[in] oflag Values for \a oflag are constructed by a bitwise-inclusive
+ * OR of flags O_READ, O_WRITE, O_TRUNC, and O_SYNC.
+ *
+ * See open() by fileName for definition of flags and return values.
+ *
+ */
+uint8_t SdFile::open(SdFile* dirFile, uint16_t index, uint8_t oflag) {
+ // error if already open
+ if (isOpen())return false;
+
+ // don't open existing file if O_CREAT and O_EXCL - user call error
+ if ((oflag & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) return false;
+
+ vol_ = dirFile->vol_;
+
+ // seek to location of entry
+ if (!dirFile->seekSet(32 * index)) return false;
+
+ // read entry into cache
+ dir_t* p = dirFile->readDirCache();
+ if (p == NULL) return false;
+
+ // error if empty slot or '.' or '..'
+ if (p->name[0] == DIR_NAME_FREE ||
+ p->name[0] == DIR_NAME_DELETED || p->name[0] == '.') {
+ return false;
+ }
+ // open cached entry
+ return openCachedEntry(index & 0XF, oflag);
+}
+//------------------------------------------------------------------------------
+// open a cached directory entry. Assumes vol_ is initializes
+uint8_t SdFile::openCachedEntry(uint8_t dirIndex, uint8_t oflag) {
+ // location of entry in cache
+ dir_t* p = SdVolume::cacheBuffer_.dir + dirIndex;
+
+ // write or truncate is an error for a directory or read-only file
+ if (p->attributes & (DIR_ATT_READ_ONLY | DIR_ATT_DIRECTORY)) {
+ if (oflag & (O_WRITE | O_TRUNC)) return false;
+ }
+ // remember location of directory entry on SD
+ dirIndex_ = dirIndex;
+ dirBlock_ = SdVolume::cacheBlockNumber_;
+
+ // copy first cluster number for directory fields
+ firstCluster_ = (uint32_t)p->firstClusterHigh << 16;
+ firstCluster_ |= p->firstClusterLow;
+
+ // make sure it is a normal file or subdirectory
+ if (DIR_IS_FILE(p)) {
+ fileSize_ = p->fileSize;
+ type_ = FAT_FILE_TYPE_NORMAL;
+ } else if (DIR_IS_SUBDIR(p)) {
+ if (!vol_->chainSize(firstCluster_, &fileSize_)) return false;
+ type_ = FAT_FILE_TYPE_SUBDIR;
+ } else {
+ return false;
+ }
+ // save open flags for read/write
+ flags_ = oflag & (O_ACCMODE | O_SYNC | O_APPEND);
+
+ // set to start of file
+ curCluster_ = 0;
+ curPosition_ = 0;
+
+ // truncate file to zero length if requested
+ if (oflag & O_TRUNC) return truncate(0);
+ return true;
+}
+//------------------------------------------------------------------------------
+/**
+ * Open a volume's root directory.
+ *
+ * \param[in] vol The FAT volume containing the root directory to be opened.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include the FAT volume has not been initialized
+ * or it a FAT12 volume.
+ */
+uint8_t SdFile::openRoot(SdVolume* vol) {
+ // error if file is already open
+ if (isOpen()) return false;
+
+ if (vol->fatType() == 16) {
+ type_ = FAT_FILE_TYPE_ROOT16;
+ firstCluster_ = 0;
+ fileSize_ = 32 * vol->rootDirEntryCount();
+ } else if (vol->fatType() == 32) {
+ type_ = FAT_FILE_TYPE_ROOT32;
+ firstCluster_ = vol->rootDirStart();
+ if (!vol->chainSize(firstCluster_, &fileSize_)) return false;
+ } else {
+ // volume is not initialized or FAT12
+ return false;
+ }
+ vol_ = vol;
+ // read only
+ flags_ = O_READ;
+
+ // set to start of file
+ curCluster_ = 0;
+ curPosition_ = 0;
+
+ // root has no directory entry
+ dirBlock_ = 0;
+ dirIndex_ = 0;
+ return true;
+}
+//------------------------------------------------------------------------------
+/** %Print the name field of a directory entry in 8.3 format to Serial.
+ *
+ * \param[in] dir The directory structure containing the name.
+ * \param[in] width Blank fill name if length is less than \a width.
+ */
+void SdFile::printDirName(const dir_t& dir, uint8_t width) {
+ uint8_t w = 0;
+ for (uint8_t i = 0; i < 11; i++) {
+ if (dir.name[i] == ' ')continue;
+ if (i == 8) {
+ Serial.print('.');
+ w++;
+ }
+ Serial.write(dir.name[i]);
+ w++;
+ }
+ if (DIR_IS_SUBDIR(&dir)) {
+ Serial.print('/');
+ w++;
+ }
+ while (w < width) {
+ Serial.print(' ');
+ w++;
+ }
+}
+//------------------------------------------------------------------------------
+/** %Print a directory date field to Serial.
+ *
+ * Format is yyyy-mm-dd.
+ *
+ * \param[in] fatDate The date field from a directory entry.
+ */
+void SdFile::printFatDate(uint16_t fatDate) {
+ Serial.print(FAT_YEAR(fatDate));
+ Serial.print('-');
+ printTwoDigits(FAT_MONTH(fatDate));
+ Serial.print('-');
+ printTwoDigits(FAT_DAY(fatDate));
+}
+//------------------------------------------------------------------------------
+/** %Print a directory time field to Serial.
+ *
+ * Format is hh:mm:ss.
+ *
+ * \param[in] fatTime The time field from a directory entry.
+ */
+void SdFile::printFatTime(uint16_t fatTime) {
+ printTwoDigits(FAT_HOUR(fatTime));
+ Serial.print(':');
+ printTwoDigits(FAT_MINUTE(fatTime));
+ Serial.print(':');
+ printTwoDigits(FAT_SECOND(fatTime));
+}
+//------------------------------------------------------------------------------
+/** %Print a value as two digits to Serial.
+ *
+ * \param[in] v Value to be printed, 0 <= \a v <= 99
+ */
+void SdFile::printTwoDigits(uint8_t v) {
+ char str[3];
+ str[0] = '0' + v/10;
+ str[1] = '0' + v % 10;
+ str[2] = 0;
+ Serial.print(str);
+}
+//------------------------------------------------------------------------------
+/**
+ * Read data from a file starting at the current position.
+ *
+ * \param[out] buf Pointer to the location that will receive the data.
+ *
+ * \param[in] nbyte Maximum number of bytes to read.
+ *
+ * \return For success read() returns the number of bytes read.
+ * A value less than \a nbyte, including zero, will be returned
+ * if end of file is reached.
+ * If an error occurs, read() returns -1. Possible errors include
+ * read() called before a file has been opened, corrupt file system
+ * or an I/O error occurred.
+ */
+int16_t SdFile::read(void* buf, uint16_t nbyte) {
+ uint8_t* dst = reinterpret_cast<uint8_t*>(buf);
+
+ // error if not open or write only
+ if (!isOpen() || !(flags_ & O_READ)) return -1;
+
+ // max bytes left in file
+ if (nbyte > (fileSize_ - curPosition_)) nbyte = fileSize_ - curPosition_;
+
+ // amount left to read
+ uint16_t toRead = nbyte;
+ while (toRead > 0) {
+ uint32_t block; // raw device block number
+ uint16_t offset = curPosition_ & 0X1FF; // offset in block
+ if (type_ == FAT_FILE_TYPE_ROOT16) {
+ block = vol_->rootDirStart() + (curPosition_ >> 9);
+ } else {
+ uint8_t blockOfCluster = vol_->blockOfCluster(curPosition_);
+ if (offset == 0 && blockOfCluster == 0) {
+ // start of new cluster
+ if (curPosition_ == 0) {
+ // use first cluster in file
+ curCluster_ = firstCluster_;
+ } else {
+ // get next cluster from FAT
+ if (!vol_->fatGet(curCluster_, &curCluster_)) return -1;
+ }
+ }
+ block = vol_->clusterStartBlock(curCluster_) + blockOfCluster;
+ }
+ uint16_t n = toRead;
+
+ // amount to be read from current block
+ if (n > (512 - offset)) n = 512 - offset;
+
+ // no buffering needed if n == 512 or user requests no buffering
+ if ((unbufferedRead() || n == 512) &&
+ block != SdVolume::cacheBlockNumber_) {
+ if (!vol_->readData(block, offset, n, dst)) return -1;
+ dst += n;
+ } else {
+ // read block to cache and copy data to caller
+ if (!SdVolume::cacheRawBlock(block, SdVolume::CACHE_FOR_READ)) return -1;
+ uint8_t* src = SdVolume::cacheBuffer_.data + offset;
+ uint8_t* end = src + n;
+ while (src != end) *dst++ = *src++;
+ }
+ curPosition_ += n;
+ toRead -= n;
+ }
+ return nbyte;
+}
+//------------------------------------------------------------------------------
+/**
+ * Read the next directory entry from a directory file.
+ *
+ * \param[out] dir The dir_t struct that will receive the data.
+ *
+ * \return For success readDir() returns the number of bytes read.
+ * A value of zero will be returned if end of file is reached.
+ * If an error occurs, readDir() returns -1. Possible errors include
+ * readDir() called before a directory has been opened, this is not
+ * a directory file or an I/O error occurred.
+ */
+int8_t SdFile::readDir(dir_t* dir) {
+ int8_t n;
+ // if not a directory file or miss-positioned return an error
+ if (!isDir() || (0X1F & curPosition_)) return -1;
+
+ while ((n = read(dir, sizeof(dir_t))) == sizeof(dir_t)) {
+ // last entry if DIR_NAME_FREE
+ if (dir->name[0] == DIR_NAME_FREE) break;
+ // skip empty entries and entry for . and ..
+ if (dir->name[0] == DIR_NAME_DELETED || dir->name[0] == '.') continue;
+ // return if normal file or subdirectory
+ if (DIR_IS_FILE_OR_SUBDIR(dir)) return n;
+ }
+ // error, end of file, or past last entry
+ return n < 0 ? -1 : 0;
+}
+//------------------------------------------------------------------------------
+// Read next directory entry into the cache
+// Assumes file is correctly positioned
+dir_t* SdFile::readDirCache(void) {
+ // error if not directory
+ if (!isDir()) return NULL;
+
+ // index of entry in cache
+ uint8_t i = (curPosition_ >> 5) & 0XF;
+
+ // use read to locate and cache block
+ if (read() < 0) return NULL;
+
+ // advance to next entry
+ curPosition_ += 31;
+
+ // return pointer to entry
+ return (SdVolume::cacheBuffer_.dir + i);
+}
+//------------------------------------------------------------------------------
+/**
+ * Remove a file.
+ *
+ * The directory entry and all data for the file are deleted.
+ *
+ * \note This function should not be used to delete the 8.3 version of a
+ * file that has a long name. For example if a file has the long name
+ * "New Text Document.txt" you should not delete the 8.3 name "NEWTEX~1.TXT".
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include the file read-only, is a directory,
+ * or an I/O error occurred.
+ */
+uint8_t SdFile::remove(void) {
+ // free any clusters - will fail if read-only or directory
+ if (!truncate(0)) return false;
+
+ // cache directory entry
+ dir_t* d = cacheDirEntry(SdVolume::CACHE_FOR_WRITE);
+ if (!d) return false;
+
+ // mark entry deleted
+ d->name[0] = DIR_NAME_DELETED;
+
+ // set this SdFile closed
+ type_ = FAT_FILE_TYPE_CLOSED;
+
+ // write entry to SD
+ return SdVolume::cacheFlush();
+}
+//------------------------------------------------------------------------------
+/**
+ * Remove a file.
+ *
+ * The directory entry and all data for the file are deleted.
+ *
+ * \param[in] dirFile The directory that contains the file.
+ * \param[in] fileName The name of the file to be removed.
+ *
+ * \note This function should not be used to delete the 8.3 version of a
+ * file that has a long name. For example if a file has the long name
+ * "New Text Document.txt" you should not delete the 8.3 name "NEWTEX~1.TXT".
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include the file is a directory, is read only,
+ * \a dirFile is not a directory, \a fileName is not found
+ * or an I/O error occurred.
+ */
+uint8_t SdFile::remove(SdFile* dirFile, const char* fileName) {
+ SdFile file;
+ if (!file.open(dirFile, fileName, O_WRITE)) return false;
+ return file.remove();
+}
+//------------------------------------------------------------------------------
+/** Remove a directory file.
+ *
+ * The directory file will be removed only if it is empty and is not the
+ * root directory. rmDir() follows DOS and Windows and ignores the
+ * read-only attribute for the directory.
+ *
+ * \note This function should not be used to delete the 8.3 version of a
+ * directory that has a long name. For example if a directory has the
+ * long name "New folder" you should not delete the 8.3 name "NEWFOL~1".
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include the file is not a directory, is the root
+ * directory, is not empty, or an I/O error occurred.
+ */
+uint8_t SdFile::rmDir(void) {
+ // must be open subdirectory
+ if (!isSubDir()) return false;
+
+ rewind();
+
+ // make sure directory is empty
+ while (curPosition_ < fileSize_) {
+ dir_t* p = readDirCache();
+ if (p == NULL) return false;
+ // done if past last used entry
+ if (p->name[0] == DIR_NAME_FREE) break;
+ // skip empty slot or '.' or '..'
+ if (p->name[0] == DIR_NAME_DELETED || p->name[0] == '.') continue;
+ // error not empty
+ if (DIR_IS_FILE_OR_SUBDIR(p)) return false;
+ }
+ // convert empty directory to normal file for remove
+ type_ = FAT_FILE_TYPE_NORMAL;
+ flags_ |= O_WRITE;
+ return remove();
+}
+//------------------------------------------------------------------------------
+/** Recursively delete a directory and all contained files.
+ *
+ * This is like the Unix/Linux 'rm -rf *' if called with the root directory
+ * hence the name.
+ *
+ * Warning - This will remove all contents of the directory including
+ * subdirectories. The directory will then be removed if it is not root.
+ * The read-only attribute for files will be ignored.
+ *
+ * \note This function should not be used to delete the 8.3 version of
+ * a directory that has a long name. See remove() and rmDir().
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t SdFile::rmRfStar(void) {
+ rewind();
+ while (curPosition_ < fileSize_) {
+ SdFile f;
+
+ // remember position
+ uint16_t index = curPosition_/32;
+
+ dir_t* p = readDirCache();
+ if (!p) return false;
+
+ // done if past last entry
+ if (p->name[0] == DIR_NAME_FREE) break;
+
+ // skip empty slot or '.' or '..'
+ if (p->name[0] == DIR_NAME_DELETED || p->name[0] == '.') continue;
+
+ // skip if part of long file name or volume label in root
+ if (!DIR_IS_FILE_OR_SUBDIR(p)) continue;
+
+ if (!f.open(this, index, O_READ)) return false;
+ if (f.isSubDir()) {
+ // recursively delete
+ if (!f.rmRfStar()) return false;
+ } else {
+ // ignore read-only
+ f.flags_ |= O_WRITE;
+ if (!f.remove()) return false;
+ }
+ // position to next entry if required
+ if (curPosition_ != (32*(index + 1))) {
+ if (!seekSet(32*(index + 1))) return false;
+ }
+ }
+ // don't try to delete root
+ if (isRoot()) return true;
+ return rmDir();
+}
+//------------------------------------------------------------------------------
+/**
+ * Sets a file's position.
+ *
+ * \param[in] pos The new position in bytes from the beginning of the file.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t SdFile::seekSet(uint32_t pos) {
+ // error if file not open or seek past end of file
+ if (!isOpen() || pos > fileSize_) return false;
+
+ if (type_ == FAT_FILE_TYPE_ROOT16) {
+ curPosition_ = pos;
+ return true;
+ }
+ if (pos == 0) {
+ // set position to start of file
+ curCluster_ = 0;
+ curPosition_ = 0;
+ return true;
+ }
+ // calculate cluster index for cur and new position
+ uint32_t nCur = (curPosition_ - 1) >> (vol_->clusterSizeShift_ + 9);
+ uint32_t nNew = (pos - 1) >> (vol_->clusterSizeShift_ + 9);
+
+ if (nNew < nCur || curPosition_ == 0) {
+ // must follow chain from first cluster
+ curCluster_ = firstCluster_;
+ } else {
+ // advance from curPosition
+ nNew -= nCur;
+ }
+ while (nNew--) {
+ if (!vol_->fatGet(curCluster_, &curCluster_)) return false;
+ }
+ curPosition_ = pos;
+ return true;
+}
+//------------------------------------------------------------------------------
+/**
+ * The sync() call causes all modified data and directory fields
+ * to be written to the storage device.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include a call to sync() before a file has been
+ * opened or an I/O error.
+ */
+uint8_t SdFile::sync(void) {
+ // only allow open files and directories
+ if (!isOpen()) return false;
+
+ if (flags_ & F_FILE_DIR_DIRTY) {
+ dir_t* d = cacheDirEntry(SdVolume::CACHE_FOR_WRITE);
+ if (!d) return false;
+
+ // do not set filesize for dir files
+ if (!isDir()) d->fileSize = fileSize_;
+
+ // update first cluster fields
+ d->firstClusterLow = firstCluster_ & 0XFFFF;
+ d->firstClusterHigh = firstCluster_ >> 16;
+
+ // set modify time if user supplied a callback date/time function
+ if (dateTime_) {
+ dateTime_(&d->lastWriteDate, &d->lastWriteTime);
+ d->lastAccessDate = d->lastWriteDate;
+ }
+ // clear directory dirty
+ flags_ &= ~F_FILE_DIR_DIRTY;
+ }
+ return SdVolume::cacheFlush();
+}
+//------------------------------------------------------------------------------
+/**
+ * Set a file's timestamps in its directory entry.
+ *
+ * \param[in] flags Values for \a flags are constructed by a bitwise-inclusive
+ * OR of flags from the following list
+ *
+ * T_ACCESS - Set the file's last access date.
+ *
+ * T_CREATE - Set the file's creation date and time.
+ *
+ * T_WRITE - Set the file's last write/modification date and time.
+ *
+ * \param[in] year Valid range 1980 - 2107 inclusive.
+ *
+ * \param[in] month Valid range 1 - 12 inclusive.
+ *
+ * \param[in] day Valid range 1 - 31 inclusive.
+ *
+ * \param[in] hour Valid range 0 - 23 inclusive.
+ *
+ * \param[in] minute Valid range 0 - 59 inclusive.
+ *
+ * \param[in] second Valid range 0 - 59 inclusive
+ *
+ * \note It is possible to set an invalid date since there is no check for
+ * the number of days in a month.
+ *
+ * \note
+ * Modify and access timestamps may be overwritten if a date time callback
+ * function has been set by dateTimeCallback().
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ */
+uint8_t SdFile::timestamp(uint8_t flags, uint16_t year, uint8_t month,
+ uint8_t day, uint8_t hour, uint8_t minute, uint8_t second) {
+ if (!isOpen()
+ || year < 1980
+ || year > 2107
+ || month < 1
+ || month > 12
+ || day < 1
+ || day > 31
+ || hour > 23
+ || minute > 59
+ || second > 59) {
+ return false;
+ }
+ dir_t* d = cacheDirEntry(SdVolume::CACHE_FOR_WRITE);
+ if (!d) return false;
+
+ uint16_t dirDate = FAT_DATE(year, month, day);
+ uint16_t dirTime = FAT_TIME(hour, minute, second);
+ if (flags & T_ACCESS) {
+ d->lastAccessDate = dirDate;
+ }
+ if (flags & T_CREATE) {
+ d->creationDate = dirDate;
+ d->creationTime = dirTime;
+ // seems to be units of 1/100 second not 1/10 as Microsoft states
+ d->creationTimeTenths = second & 1 ? 100 : 0;
+ }
+ if (flags & T_WRITE) {
+ d->lastWriteDate = dirDate;
+ d->lastWriteTime = dirTime;
+ }
+ SdVolume::cacheSetDirty();
+ return sync();
+}
+//------------------------------------------------------------------------------
+/**
+ * Truncate a file to a specified length. The current file position
+ * will be maintained if it is less than or equal to \a length otherwise
+ * it will be set to end of file.
+ *
+ * \param[in] length The desired length for the file.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure.
+ * Reasons for failure include file is read only, file is a directory,
+ * \a length is greater than the current file size or an I/O error occurs.
+ */
+uint8_t SdFile::truncate(uint32_t length) {
+// error if not a normal file or read-only
+ if (!isFile() || !(flags_ & O_WRITE)) return false;
+
+ // error if length is greater than current size
+ if (length > fileSize_) return false;
+
+ // fileSize and length are zero - nothing to do
+ if (fileSize_ == 0) return true;
+
+ // remember position for seek after truncation
+ uint32_t newPos = curPosition_ > length ? length : curPosition_;
+
+ // position to last cluster in truncated file
+ if (!seekSet(length)) return false;
+
+ if (length == 0) {
+ // free all clusters
+ if (!vol_->freeChain(firstCluster_)) return false;
+ firstCluster_ = 0;
+ } else {
+ uint32_t toFree;
+ if (!vol_->fatGet(curCluster_, &toFree)) return false;
+
+ if (!vol_->isEOC(toFree)) {
+ // free extra clusters
+ if (!vol_->freeChain(toFree)) return false;
+
+ // current cluster is end of chain
+ if (!vol_->fatPutEOC(curCluster_)) return false;
+ }
+ }
+ fileSize_ = length;
+
+ // need to update directory entry
+ flags_ |= F_FILE_DIR_DIRTY;
+
+ if (!sync()) return false;
+
+ // set file to correct position
+ return seekSet(newPos);
+}
+//------------------------------------------------------------------------------
+/**
+ * Write data to an open file.
+ *
+ * \note Data is moved to the cache but may not be written to the
+ * storage device until sync() is called.
+ *
+ * \param[in] buf Pointer to the location of the data to be written.
+ *
+ * \param[in] nbyte Number of bytes to write.
+ *
+ * \return For success write() returns the number of bytes written, always
+ * \a nbyte. If an error occurs, write() returns -1. Possible errors
+ * include write() is called before a file has been opened, write is called
+ * for a read-only file, device is full, a corrupt file system or an I/O error.
+ *
+ */
+size_t SdFile::write(const void* buf, uint16_t nbyte) {
+ // convert void* to uint8_t* - must be before goto statements
+ const uint8_t* src = reinterpret_cast<const uint8_t*>(buf);
+
+ // number of bytes left to write - must be before goto statements
+ uint16_t nToWrite = nbyte;
+
+ // error if not a normal file or is read-only
+ if (!isFile() || !(flags_ & O_WRITE)) goto writeErrorReturn;
+
+ // seek to end of file if append flag
+ if ((flags_ & O_APPEND) && curPosition_ != fileSize_) {
+ if (!seekEnd()) goto writeErrorReturn;
+ }
+
+ while (nToWrite > 0) {
+ uint8_t blockOfCluster = vol_->blockOfCluster(curPosition_);
+ uint16_t blockOffset = curPosition_ & 0X1FF;
+ if (blockOfCluster == 0 && blockOffset == 0) {
+ // start of new cluster
+ if (curCluster_ == 0) {
+ if (firstCluster_ == 0) {
+ // allocate first cluster of file
+ if (!addCluster()) goto writeErrorReturn;
+ } else {
+ curCluster_ = firstCluster_;
+ }
+ } else {
+ uint32_t next;
+ if (!vol_->fatGet(curCluster_, &next)) return false;
+ if (vol_->isEOC(next)) {
+ // add cluster if at end of chain
+ if (!addCluster()) goto writeErrorReturn;
+ } else {
+ curCluster_ = next;
+ }
+ }
+ }
+ // max space in block
+ uint16_t n = 512 - blockOffset;
+
+ // lesser of space and amount to write
+ if (n > nToWrite) n = nToWrite;
+
+ // block for data write
+ uint32_t block = vol_->clusterStartBlock(curCluster_) + blockOfCluster;
+ if (n == 512) {
+ // full block - don't need to use cache
+ // invalidate cache if block is in cache
+ if (SdVolume::cacheBlockNumber_ == block) {
+ SdVolume::cacheBlockNumber_ = 0XFFFFFFFF;
+ }
+ if (!vol_->writeBlock(block, src)) goto writeErrorReturn;
+ src += 512;
+ } else {
+ if (blockOffset == 0 && curPosition_ >= fileSize_) {
+ // start of new block don't need to read into cache
+ if (!SdVolume::cacheFlush()) goto writeErrorReturn;
+ SdVolume::cacheBlockNumber_ = block;
+ SdVolume::cacheSetDirty();
+ } else {
+ // rewrite part of block
+ if (!SdVolume::cacheRawBlock(block, SdVolume::CACHE_FOR_WRITE)) {
+ goto writeErrorReturn;
+ }
+ }
+ uint8_t* dst = SdVolume::cacheBuffer_.data + blockOffset;
+ uint8_t* end = dst + n;
+ while (dst != end) *dst++ = *src++;
+ }
+ nToWrite -= n;
+ curPosition_ += n;
+ }
+ if (curPosition_ > fileSize_) {
+ // update fileSize and insure sync will update dir entry
+ fileSize_ = curPosition_;
+ flags_ |= F_FILE_DIR_DIRTY;
+ } else if (dateTime_ && nbyte) {
+ // insure sync will update modified date and time
+ flags_ |= F_FILE_DIR_DIRTY;
+ }
+
+ if (flags_ & O_SYNC) {
+ if (!sync()) goto writeErrorReturn;
+ }
+ return nbyte;
+
+ writeErrorReturn:
+ // return for write error
+ //writeError = true;
+ setWriteError();
+ return 0;
+}
+//------------------------------------------------------------------------------
+/**
+ * Write a byte to a file. Required by the Arduino Print class.
+ *
+ * Use SdFile::writeError to check for errors.
+ */
+size_t SdFile::write(uint8_t b) {
+ return write(&b, 1);
+}
+//------------------------------------------------------------------------------
+/**
+ * Write a string to a file. Used by the Arduino Print class.
+ *
+ * Use SdFile::writeError to check for errors.
+ */
+size_t SdFile::write(const char* str) {
+ return write(str, strlen(str));
+}
+//------------------------------------------------------------------------------
+/**
+ * Write a PROGMEM string to a file.
+ *
+ * Use SdFile::writeError to check for errors.
+ */
+void SdFile::write_P(PGM_P str) {
+ for (uint8_t c; (c = pgm_read_byte(str)); str++) write(c);
+}
+//------------------------------------------------------------------------------
+/**
+ * Write a PROGMEM string followed by CR/LF to a file.
+ *
+ * Use SdFile::writeError to check for errors.
+ */
+void SdFile::writeln_P(PGM_P str) {
+ write_P(str);
+ println();
+}
diff --git a/libraries/SD/utility/SdInfo.h b/libraries/SD/utility/SdInfo.h new file mode 100644 index 0000000..acde74d --- /dev/null +++ b/libraries/SD/utility/SdInfo.h @@ -0,0 +1,232 @@ +/* Arduino Sd2Card Library
+ * Copyright (C) 2009 by William Greiman
+ *
+ * This file is part of the Arduino Sd2Card Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino Sd2Card Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+#ifndef SdInfo_h
+#define SdInfo_h
+#include <stdint.h>
+// Based on the document:
+//
+// SD Specifications
+// Part 1
+// Physical Layer
+// Simplified Specification
+// Version 2.00
+// September 25, 2006
+//
+// www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf
+//------------------------------------------------------------------------------
+// SD card commands
+/** GO_IDLE_STATE - init card in spi mode if CS low */
+uint8_t const CMD0 = 0X00;
+/** SEND_IF_COND - verify SD Memory Card interface operating condition.*/
+uint8_t const CMD8 = 0X08;
+/** SEND_CSD - read the Card Specific Data (CSD register) */
+uint8_t const CMD9 = 0X09;
+/** SEND_CID - read the card identification information (CID register) */
+uint8_t const CMD10 = 0X0A;
+/** SEND_STATUS - read the card status register */
+uint8_t const CMD13 = 0X0D;
+/** READ_BLOCK - read a single data block from the card */
+uint8_t const CMD17 = 0X11;
+/** WRITE_BLOCK - write a single data block to the card */
+uint8_t const CMD24 = 0X18;
+/** WRITE_MULTIPLE_BLOCK - write blocks of data until a STOP_TRANSMISSION */
+uint8_t const CMD25 = 0X19;
+/** ERASE_WR_BLK_START - sets the address of the first block to be erased */
+uint8_t const CMD32 = 0X20;
+/** ERASE_WR_BLK_END - sets the address of the last block of the continuous
+ range to be erased*/
+uint8_t const CMD33 = 0X21;
+/** ERASE - erase all previously selected blocks */
+uint8_t const CMD38 = 0X26;
+/** APP_CMD - escape for application specific command */
+uint8_t const CMD55 = 0X37;
+/** READ_OCR - read the OCR register of a card */
+uint8_t const CMD58 = 0X3A;
+/** SET_WR_BLK_ERASE_COUNT - Set the number of write blocks to be
+ pre-erased before writing */
+uint8_t const ACMD23 = 0X17;
+/** SD_SEND_OP_COMD - Sends host capacity support information and
+ activates the card's initialization process */
+uint8_t const ACMD41 = 0X29;
+//------------------------------------------------------------------------------
+/** status for card in the ready state */
+uint8_t const R1_READY_STATE = 0X00;
+/** status for card in the idle state */
+uint8_t const R1_IDLE_STATE = 0X01;
+/** status bit for illegal command */
+uint8_t const R1_ILLEGAL_COMMAND = 0X04;
+/** start data token for read or write single block*/
+uint8_t const DATA_START_BLOCK = 0XFE;
+/** stop token for write multiple blocks*/
+uint8_t const STOP_TRAN_TOKEN = 0XFD;
+/** start data token for write multiple blocks*/
+uint8_t const WRITE_MULTIPLE_TOKEN = 0XFC;
+/** mask for data response tokens after a write block operation */
+uint8_t const DATA_RES_MASK = 0X1F;
+/** write data accepted token */
+uint8_t const DATA_RES_ACCEPTED = 0X05;
+//------------------------------------------------------------------------------
+typedef struct CID {
+ // byte 0
+ uint8_t mid; // Manufacturer ID
+ // byte 1-2
+ char oid[2]; // OEM/Application ID
+ // byte 3-7
+ char pnm[5]; // Product name
+ // byte 8
+ unsigned prv_m : 4; // Product revision n.m
+ unsigned prv_n : 4;
+ // byte 9-12
+ uint32_t psn; // Product serial number
+ // byte 13
+ unsigned mdt_year_high : 4; // Manufacturing date
+ unsigned reserved : 4;
+ // byte 14
+ unsigned mdt_month : 4;
+ unsigned mdt_year_low :4;
+ // byte 15
+ unsigned always1 : 1;
+ unsigned crc : 7;
+}cid_t;
+//------------------------------------------------------------------------------
+// CSD for version 1.00 cards
+typedef struct CSDV1 {
+ // byte 0
+ unsigned reserved1 : 6;
+ unsigned csd_ver : 2;
+ // byte 1
+ uint8_t taac;
+ // byte 2
+ uint8_t nsac;
+ // byte 3
+ uint8_t tran_speed;
+ // byte 4
+ uint8_t ccc_high;
+ // byte 5
+ unsigned read_bl_len : 4;
+ unsigned ccc_low : 4;
+ // byte 6
+ unsigned c_size_high : 2;
+ unsigned reserved2 : 2;
+ unsigned dsr_imp : 1;
+ unsigned read_blk_misalign :1;
+ unsigned write_blk_misalign : 1;
+ unsigned read_bl_partial : 1;
+ // byte 7
+ uint8_t c_size_mid;
+ // byte 8
+ unsigned vdd_r_curr_max : 3;
+ unsigned vdd_r_curr_min : 3;
+ unsigned c_size_low :2;
+ // byte 9
+ unsigned c_size_mult_high : 2;
+ unsigned vdd_w_cur_max : 3;
+ unsigned vdd_w_curr_min : 3;
+ // byte 10
+ unsigned sector_size_high : 6;
+ unsigned erase_blk_en : 1;
+ unsigned c_size_mult_low : 1;
+ // byte 11
+ unsigned wp_grp_size : 7;
+ unsigned sector_size_low : 1;
+ // byte 12
+ unsigned write_bl_len_high : 2;
+ unsigned r2w_factor : 3;
+ unsigned reserved3 : 2;
+ unsigned wp_grp_enable : 1;
+ // byte 13
+ unsigned reserved4 : 5;
+ unsigned write_partial : 1;
+ unsigned write_bl_len_low : 2;
+ // byte 14
+ unsigned reserved5: 2;
+ unsigned file_format : 2;
+ unsigned tmp_write_protect : 1;
+ unsigned perm_write_protect : 1;
+ unsigned copy : 1;
+ unsigned file_format_grp : 1;
+ // byte 15
+ unsigned always1 : 1;
+ unsigned crc : 7;
+}csd1_t;
+//------------------------------------------------------------------------------
+// CSD for version 2.00 cards
+typedef struct CSDV2 {
+ // byte 0
+ unsigned reserved1 : 6;
+ unsigned csd_ver : 2;
+ // byte 1
+ uint8_t taac;
+ // byte 2
+ uint8_t nsac;
+ // byte 3
+ uint8_t tran_speed;
+ // byte 4
+ uint8_t ccc_high;
+ // byte 5
+ unsigned read_bl_len : 4;
+ unsigned ccc_low : 4;
+ // byte 6
+ unsigned reserved2 : 4;
+ unsigned dsr_imp : 1;
+ unsigned read_blk_misalign :1;
+ unsigned write_blk_misalign : 1;
+ unsigned read_bl_partial : 1;
+ // byte 7
+ unsigned reserved3 : 2;
+ unsigned c_size_high : 6;
+ // byte 8
+ uint8_t c_size_mid;
+ // byte 9
+ uint8_t c_size_low;
+ // byte 10
+ unsigned sector_size_high : 6;
+ unsigned erase_blk_en : 1;
+ unsigned reserved4 : 1;
+ // byte 11
+ unsigned wp_grp_size : 7;
+ unsigned sector_size_low : 1;
+ // byte 12
+ unsigned write_bl_len_high : 2;
+ unsigned r2w_factor : 3;
+ unsigned reserved5 : 2;
+ unsigned wp_grp_enable : 1;
+ // byte 13
+ unsigned reserved6 : 5;
+ unsigned write_partial : 1;
+ unsigned write_bl_len_low : 2;
+ // byte 14
+ unsigned reserved7: 2;
+ unsigned file_format : 2;
+ unsigned tmp_write_protect : 1;
+ unsigned perm_write_protect : 1;
+ unsigned copy : 1;
+ unsigned file_format_grp : 1;
+ // byte 15
+ unsigned always1 : 1;
+ unsigned crc : 7;
+}csd2_t;
+//------------------------------------------------------------------------------
+// union of old and new style CSD register
+union csd_t {
+ csd1_t v1;
+ csd2_t v2;
+};
+#endif // SdInfo_h
diff --git a/libraries/SD/utility/SdVolume.cpp b/libraries/SD/utility/SdVolume.cpp new file mode 100644 index 0000000..ece4acb --- /dev/null +++ b/libraries/SD/utility/SdVolume.cpp @@ -0,0 +1,295 @@ +/* Arduino SdFat Library
+ * Copyright (C) 2009 by William Greiman
+ *
+ * This file is part of the Arduino SdFat Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino SdFat Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+#include <SdFat.h>
+//------------------------------------------------------------------------------
+// raw block cache
+// init cacheBlockNumber_to invalid SD block number
+uint32_t SdVolume::cacheBlockNumber_ = 0XFFFFFFFF;
+cache_t SdVolume::cacheBuffer_; // 512 byte cache for Sd2Card
+Sd2Card* SdVolume::sdCard_; // pointer to SD card object
+uint8_t SdVolume::cacheDirty_ = 0; // cacheFlush() will write block if true
+uint32_t SdVolume::cacheMirrorBlock_ = 0; // mirror block for second FAT
+//------------------------------------------------------------------------------
+// find a contiguous group of clusters
+uint8_t SdVolume::allocContiguous(uint32_t count, uint32_t* curCluster) {
+ // start of group
+ uint32_t bgnCluster;
+
+ // flag to save place to start next search
+ uint8_t setStart;
+
+ // set search start cluster
+ if (*curCluster) {
+ // try to make file contiguous
+ bgnCluster = *curCluster + 1;
+
+ // don't save new start location
+ setStart = false;
+ } else {
+ // start at likely place for free cluster
+ bgnCluster = allocSearchStart_;
+
+ // save next search start if one cluster
+ setStart = 1 == count;
+ }
+ // end of group
+ uint32_t endCluster = bgnCluster;
+
+ // last cluster of FAT
+ uint32_t fatEnd = clusterCount_ + 1;
+
+ // search the FAT for free clusters
+ for (uint32_t n = 0;; n++, endCluster++) {
+ // can't find space checked all clusters
+ if (n >= clusterCount_) return false;
+
+ // past end - start from beginning of FAT
+ if (endCluster > fatEnd) {
+ bgnCluster = endCluster = 2;
+ }
+ uint32_t f;
+ if (!fatGet(endCluster, &f)) return false;
+
+ if (f != 0) {
+ // cluster in use try next cluster as bgnCluster
+ bgnCluster = endCluster + 1;
+ } else if ((endCluster - bgnCluster + 1) == count) {
+ // done - found space
+ break;
+ }
+ }
+ // mark end of chain
+ if (!fatPutEOC(endCluster)) return false;
+
+ // link clusters
+ while (endCluster > bgnCluster) {
+ if (!fatPut(endCluster - 1, endCluster)) return false;
+ endCluster--;
+ }
+ if (*curCluster != 0) {
+ // connect chains
+ if (!fatPut(*curCluster, bgnCluster)) return false;
+ }
+ // return first cluster number to caller
+ *curCluster = bgnCluster;
+
+ // remember possible next free cluster
+ if (setStart) allocSearchStart_ = bgnCluster + 1;
+
+ return true;
+}
+//------------------------------------------------------------------------------
+uint8_t SdVolume::cacheFlush(void) {
+ if (cacheDirty_) {
+ if (!sdCard_->writeBlock(cacheBlockNumber_, cacheBuffer_.data)) {
+ return false;
+ }
+ // mirror FAT tables
+ if (cacheMirrorBlock_) {
+ if (!sdCard_->writeBlock(cacheMirrorBlock_, cacheBuffer_.data)) {
+ return false;
+ }
+ cacheMirrorBlock_ = 0;
+ }
+ cacheDirty_ = 0;
+ }
+ return true;
+}
+//------------------------------------------------------------------------------
+uint8_t SdVolume::cacheRawBlock(uint32_t blockNumber, uint8_t action) {
+ if (cacheBlockNumber_ != blockNumber) {
+ if (!cacheFlush()) return false;
+ if (!sdCard_->readBlock(blockNumber, cacheBuffer_.data)) return false;
+ cacheBlockNumber_ = blockNumber;
+ }
+ cacheDirty_ |= action;
+ return true;
+}
+//------------------------------------------------------------------------------
+// cache a zero block for blockNumber
+uint8_t SdVolume::cacheZeroBlock(uint32_t blockNumber) {
+ if (!cacheFlush()) return false;
+
+ // loop take less flash than memset(cacheBuffer_.data, 0, 512);
+ for (uint16_t i = 0; i < 512; i++) {
+ cacheBuffer_.data[i] = 0;
+ }
+ cacheBlockNumber_ = blockNumber;
+ cacheSetDirty();
+ return true;
+}
+//------------------------------------------------------------------------------
+// return the size in bytes of a cluster chain
+uint8_t SdVolume::chainSize(uint32_t cluster, uint32_t* size) const {
+ uint32_t s = 0;
+ do {
+ if (!fatGet(cluster, &cluster)) return false;
+ s += 512UL << clusterSizeShift_;
+ } while (!isEOC(cluster));
+ *size = s;
+ return true;
+}
+//------------------------------------------------------------------------------
+// Fetch a FAT entry
+uint8_t SdVolume::fatGet(uint32_t cluster, uint32_t* value) const {
+ if (cluster > (clusterCount_ + 1)) return false;
+ uint32_t lba = fatStartBlock_;
+ lba += fatType_ == 16 ? cluster >> 8 : cluster >> 7;
+ if (lba != cacheBlockNumber_) {
+ if (!cacheRawBlock(lba, CACHE_FOR_READ)) return false;
+ }
+ if (fatType_ == 16) {
+ *value = cacheBuffer_.fat16[cluster & 0XFF];
+ } else {
+ *value = cacheBuffer_.fat32[cluster & 0X7F] & FAT32MASK;
+ }
+ return true;
+}
+//------------------------------------------------------------------------------
+// Store a FAT entry
+uint8_t SdVolume::fatPut(uint32_t cluster, uint32_t value) {
+ // error if reserved cluster
+ if (cluster < 2) return false;
+
+ // error if not in FAT
+ if (cluster > (clusterCount_ + 1)) return false;
+
+ // calculate block address for entry
+ uint32_t lba = fatStartBlock_;
+ lba += fatType_ == 16 ? cluster >> 8 : cluster >> 7;
+
+ if (lba != cacheBlockNumber_) {
+ if (!cacheRawBlock(lba, CACHE_FOR_READ)) return false;
+ }
+ // store entry
+ if (fatType_ == 16) {
+ cacheBuffer_.fat16[cluster & 0XFF] = value;
+ } else {
+ cacheBuffer_.fat32[cluster & 0X7F] = value;
+ }
+ cacheSetDirty();
+
+ // mirror second FAT
+ if (fatCount_ > 1) cacheMirrorBlock_ = lba + blocksPerFat_;
+ return true;
+}
+//------------------------------------------------------------------------------
+// free a cluster chain
+uint8_t SdVolume::freeChain(uint32_t cluster) {
+ // clear free cluster location
+ allocSearchStart_ = 2;
+
+ do {
+ uint32_t next;
+ if (!fatGet(cluster, &next)) return false;
+
+ // free cluster
+ if (!fatPut(cluster, 0)) return false;
+
+ cluster = next;
+ } while (!isEOC(cluster));
+
+ return true;
+}
+//------------------------------------------------------------------------------
+/**
+ * Initialize a FAT volume.
+ *
+ * \param[in] dev The SD card where the volume is located.
+ *
+ * \param[in] part The partition to be used. Legal values for \a part are
+ * 1-4 to use the corresponding partition on a device formatted with
+ * a MBR, Master Boot Record, or zero if the device is formatted as
+ * a super floppy with the FAT boot sector in block zero.
+ *
+ * \return The value one, true, is returned for success and
+ * the value zero, false, is returned for failure. Reasons for
+ * failure include not finding a valid partition, not finding a valid
+ * FAT file system in the specified partition or an I/O error.
+ */
+uint8_t SdVolume::init(Sd2Card* dev, uint8_t part) {
+ uint32_t volumeStartBlock = 0;
+ sdCard_ = dev;
+ // if part == 0 assume super floppy with FAT boot sector in block zero
+ // if part > 0 assume mbr volume with partition table
+ if (part) {
+ if (part > 4)return false;
+ if (!cacheRawBlock(volumeStartBlock, CACHE_FOR_READ)) return false;
+ part_t* p = &cacheBuffer_.mbr.part[part-1];
+ if ((p->boot & 0X7F) !=0 ||
+ p->totalSectors < 100 ||
+ p->firstSector == 0) {
+ // not a valid partition
+ return false;
+ }
+ volumeStartBlock = p->firstSector;
+ }
+ if (!cacheRawBlock(volumeStartBlock, CACHE_FOR_READ)) return false;
+ bpb_t* bpb = &cacheBuffer_.fbs.bpb;
+ if (bpb->bytesPerSector != 512 ||
+ bpb->fatCount == 0 ||
+ bpb->reservedSectorCount == 0 ||
+ bpb->sectorsPerCluster == 0) {
+ // not valid FAT volume
+ return false;
+ }
+ fatCount_ = bpb->fatCount;
+ blocksPerCluster_ = bpb->sectorsPerCluster;
+
+ // determine shift that is same as multiply by blocksPerCluster_
+ clusterSizeShift_ = 0;
+ while (blocksPerCluster_ != (1 << clusterSizeShift_)) {
+ // error if not power of 2
+ if (clusterSizeShift_++ > 7) return false;
+ }
+ blocksPerFat_ = bpb->sectorsPerFat16 ?
+ bpb->sectorsPerFat16 : bpb->sectorsPerFat32;
+
+ fatStartBlock_ = volumeStartBlock + bpb->reservedSectorCount;
+
+ // count for FAT16 zero for FAT32
+ rootDirEntryCount_ = bpb->rootDirEntryCount;
+
+ // directory start for FAT16 dataStart for FAT32
+ rootDirStart_ = fatStartBlock_ + bpb->fatCount * blocksPerFat_;
+
+ // data start for FAT16 and FAT32
+ dataStartBlock_ = rootDirStart_ + ((32 * bpb->rootDirEntryCount + 511)/512);
+
+ // total blocks for FAT16 or FAT32
+ uint32_t totalBlocks = bpb->totalSectors16 ?
+ bpb->totalSectors16 : bpb->totalSectors32;
+ // total data blocks
+ clusterCount_ = totalBlocks - (dataStartBlock_ - volumeStartBlock);
+
+ // divide by cluster size to get cluster count
+ clusterCount_ >>= clusterSizeShift_;
+
+ // FAT type is determined by cluster count
+ if (clusterCount_ < 4085) {
+ fatType_ = 12;
+ } else if (clusterCount_ < 65525) {
+ fatType_ = 16;
+ } else {
+ rootDirStart_ = bpb->fat32RootCluster;
+ fatType_ = 32;
+ }
+ return true;
+}
diff --git a/libraries/SPI/SPI.cpp b/libraries/SPI/SPI.cpp new file mode 100644 index 0000000..42915df --- /dev/null +++ b/libraries/SPI/SPI.cpp @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st> + * SPI Master library for arduino. + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of either the GNU General Public License version 2 + * or the GNU Lesser General Public License version 2.1, both as + * published by the Free Software Foundation. + */ + +#include "pins_arduino.h" +#include "SPI.h" + +SPIClass SPI; + +void SPIClass::begin() { + // Set direction register for SCK and MOSI pin. + // MISO pin automatically overrides to INPUT. + // When the SS pin is set as OUTPUT, it can be used as + // a general purpose output port (it doesn't influence + // SPI operations). + + pinMode(SCK, OUTPUT); + pinMode(MOSI, OUTPUT); + pinMode(SS, OUTPUT); + + digitalWrite(SCK, LOW); + digitalWrite(MOSI, LOW); + digitalWrite(SS, HIGH); + + // Warning: if the SS pin ever becomes a LOW INPUT then SPI + // automatically switches to Slave, so the data direction of + // the SS pin MUST be kept as OUTPUT. + SPCR |= _BV(MSTR); + SPCR |= _BV(SPE); +} + +void SPIClass::end() { + SPCR &= ~_BV(SPE); +} + +void SPIClass::setBitOrder(uint8_t bitOrder) +{ + if(bitOrder == LSBFIRST) { + SPCR |= _BV(DORD); + } else { + SPCR &= ~(_BV(DORD)); + } +} + +void SPIClass::setDataMode(uint8_t mode) +{ + SPCR = (SPCR & ~SPI_MODE_MASK) | mode; +} + +void SPIClass::setClockDivider(uint8_t rate) +{ + SPCR = (SPCR & ~SPI_CLOCK_MASK) | (rate & SPI_CLOCK_MASK); + SPSR = (SPSR & ~SPI_2XCLOCK_MASK) | ((rate >> 2) & SPI_2XCLOCK_MASK); +} + diff --git a/libraries/SPI/SPI.h b/libraries/SPI/SPI.h new file mode 100644 index 0000000..f647d5c --- /dev/null +++ b/libraries/SPI/SPI.h @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st> + * SPI Master library for arduino. + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of either the GNU General Public License version 2 + * or the GNU Lesser General Public License version 2.1, both as + * published by the Free Software Foundation. + */ + +#ifndef _SPI_H_INCLUDED +#define _SPI_H_INCLUDED + +#include <stdio.h> +#include <Arduino.h> +#include <avr/pgmspace.h> + +#define SPI_CLOCK_DIV4 0x00 +#define SPI_CLOCK_DIV16 0x01 +#define SPI_CLOCK_DIV64 0x02 +#define SPI_CLOCK_DIV128 0x03 +#define SPI_CLOCK_DIV2 0x04 +#define SPI_CLOCK_DIV8 0x05 +#define SPI_CLOCK_DIV32 0x06 +//#define SPI_CLOCK_DIV64 0x07 + +#define SPI_MODE0 0x00 +#define SPI_MODE1 0x04 +#define SPI_MODE2 0x08 +#define SPI_MODE3 0x0C + +#define SPI_MODE_MASK 0x0C // CPOL = bit 3, CPHA = bit 2 on SPCR +#define SPI_CLOCK_MASK 0x03 // SPR1 = bit 1, SPR0 = bit 0 on SPCR +#define SPI_2XCLOCK_MASK 0x01 // SPI2X = bit 0 on SPSR + +class SPIClass { +public: + inline static byte transfer(byte _data); + + // SPI Configuration methods + + inline static void attachInterrupt(); + inline static void detachInterrupt(); // Default + + static void begin(); // Default + static void end(); + + static void setBitOrder(uint8_t); + static void setDataMode(uint8_t); + static void setClockDivider(uint8_t); +}; + +extern SPIClass SPI; + +byte SPIClass::transfer(byte _data) { + SPDR = _data; + while (!(SPSR & _BV(SPIF))) + ; + return SPDR; +} + +void SPIClass::attachInterrupt() { + SPCR |= _BV(SPIE); +} + +void SPIClass::detachInterrupt() { + SPCR &= ~_BV(SPIE); +} + +#endif diff --git a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino new file mode 100644 index 0000000..9d77a42 --- /dev/null +++ b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino @@ -0,0 +1,143 @@ +/* + SCP1000 Barometric Pressure Sensor Display + + Shows the output of a Barometric Pressure Sensor on a + Uses the SPI library. For details on the sensor, see: + http://www.sparkfun.com/commerce/product_info.php?products_id=8161 + http://www.vti.fi/en/support/obsolete_products/pressure_sensors/ + + This sketch adapted from Nathan Seidle's SCP1000 example for PIC: + http://www.sparkfun.com/datasheets/Sensors/SCP1000-Testing.zip + + Circuit: + SCP1000 sensor attached to pins 6, 7, 10 - 13: + DRDY: pin 6 + CSB: pin 7 + MOSI: pin 11 + MISO: pin 12 + SCK: pin 13 + + created 31 July 2010 + modified 14 August 2010 + by Tom Igoe + */ + +// the sensor communicates using SPI, so include the library: +#include <SPI.h> + +//Sensor's memory register addresses: +const int PRESSURE = 0x1F; //3 most significant bits of pressure +const int PRESSURE_LSB = 0x20; //16 least significant bits of pressure +const int TEMPERATURE = 0x21; //16 bit temperature reading +const byte READ = 0b11111100; // SCP1000's read command +const byte WRITE = 0b00000010; // SCP1000's write command + +// pins used for the connection with the sensor +// the other you need are controlled by the SPI library): +const int dataReadyPin = 6; +const int chipSelectPin = 7; + +void setup() { + Serial.begin(9600); + + // start the SPI library: + SPI.begin(); + + // initalize the data ready and chip select pins: + pinMode(dataReadyPin, INPUT); + pinMode(chipSelectPin, OUTPUT); + + //Configure SCP1000 for low noise configuration: + writeRegister(0x02, 0x2D); + writeRegister(0x01, 0x03); + writeRegister(0x03, 0x02); + // give the sensor time to set up: + delay(100); +} + +void loop() { + //Select High Resolution Mode + writeRegister(0x03, 0x0A); + + // don't do anything until the data ready pin is high: + if (digitalRead(dataReadyPin) == HIGH) { + //Read the temperature data + int tempData = readRegister(0x21, 2); + + // convert the temperature to celsius and display it: + float realTemp = (float)tempData / 20.0; + Serial.print("Temp[C]="); + Serial.print(realTemp); + + + //Read the pressure data highest 3 bits: + byte pressure_data_high = readRegister(0x1F, 1); + pressure_data_high &= 0b00000111; //you only needs bits 2 to 0 + + //Read the pressure data lower 16 bits: + unsigned int pressure_data_low = readRegister(0x20, 2); + //combine the two parts into one 19-bit number: + long pressure = ((pressure_data_high << 16) | pressure_data_low)/4; + + // display the temperature: + Serial.println("\tPressure [Pa]=" + String(pressure)); + } +} + +//Read from or write to register from the SCP1000: +unsigned int readRegister(byte thisRegister, int bytesToRead ) { + byte inByte = 0; // incoming byte from the SPI + unsigned int result = 0; // result to return + Serial.print(thisRegister, BIN); + Serial.print("\t"); + // SCP1000 expects the register name in the upper 6 bits + // of the byte. So shift the bits left by two bits: + thisRegister = thisRegister << 2; + // now combine the address and the command into one byte + byte dataToSend = thisRegister & READ; + Serial.println(thisRegister, BIN); + // take the chip select low to select the device: + digitalWrite(chipSelectPin, LOW); + // send the device the register you want to read: + SPI.transfer(dataToSend); + // send a value of 0 to read the first byte returned: + result = SPI.transfer(0x00); + // decrement the number of bytes left to read: + bytesToRead--; + // if you still have another byte to read: + if (bytesToRead > 0) { + // shift the first byte left, then get the second byte: + result = result << 8; + inByte = SPI.transfer(0x00); + // combine the byte you just got with the previous one: + result = result | inByte; + // decrement the number of bytes left to read: + bytesToRead--; + } + // take the chip select high to de-select: + digitalWrite(chipSelectPin, HIGH); + // return the result: + return(result); +} + + +//Sends a write command to SCP1000 + +void writeRegister(byte thisRegister, byte thisValue) { + + // SCP1000 expects the register address in the upper 6 bits + // of the byte. So shift the bits left by two bits: + thisRegister = thisRegister << 2; + // now combine the register address and the command into one byte: + byte dataToSend = thisRegister | WRITE; + + // take the chip select low to select the device: + digitalWrite(chipSelectPin, LOW); + + SPI.transfer(dataToSend); //Send register location + SPI.transfer(thisValue); //Send value to record into register + + // take the chip select high to de-select: + digitalWrite(chipSelectPin, HIGH); +} + diff --git a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.ino b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.ino new file mode 100644 index 0000000..9c9c9b6 --- /dev/null +++ b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.ino @@ -0,0 +1,143 @@ +/* + SCP1000 Barometric Pressure Sensor Display + + Shows the output of a Barometric Pressure Sensor on a + Uses the SPI library. For details on the sensor, see: + http://www.sparkfun.com/commerce/product_info.php?products_id=8161 + http://www.vti.fi/en/support/obsolete_products/pressure_sensors/ + + This sketch adapted from Nathan Seidle's SCP1000 example for PIC: + http://www.sparkfun.com/datasheets/Sensors/SCP1000-Testing.zip + + Circuit: + SCP1000 sensor attached to pins 6, 7, 10 - 13: + DRDY: pin 6 + CSB: pin 7 + MOSI: pin 11 + MISO: pin 12 + SCK: pin 13 + + created 31 July 2010 + modified 14 August 2010 + by Tom Igoe + */ + +// the sensor communicates using SPI, so include the library: +#include <SPI.h> + +//Sensor's memory register addresses: +const int PRESSURE = 0x1F; //3 most significant bits of pressure +const int PRESSURE_LSB = 0x20; //16 least significant bits of pressure +const int TEMPERATURE = 0x21; //16 bit temperature reading +cont byte READ = 0b00000000; // SCP1000's read command +const byte WRITE = 0b00000010; // SCP1000's write command +// pins used for the connection with the sensor +// the other you need are controlled by the SPI library): +const int dataReadyPin = 6; +const int chipSelectPin = 7; + +void setup() { + Serial.begin(9600); + + // start the SPI library: + SPI.begin(); + + // initalize the data ready and chip select pins: + pinMode(dataReadyPin, INPUT); + pinMode(chipSelectPin, OUTPUT); + + //Configure SCP1000 for low noise configuration: + writeRegister(0x02, 0x2D); + writeRegister(0x01, 0x03); + writeRegister(0x03, 0x02); + // give the sensor time to set up: + delay(100); +} + +void loop() { + //Select High Resolution Mode + writeRegister(0x03, 0x0A); + + // don't do anything until the data ready pin is high: + if (digitalRead(dataReadyPin) == HIGH) { + //Read the temperature data + int tempData = readRegister(0x21, 2); + + // convert the temperature to celsius and display it: + float realTemp = (float)tempData / 20.0; + Serial.print("Temp[C]="); + Serial.print(realTemp); + + + //Read the pressure data highest 3 bits: + byte pressure_data_high = readRegister(0x1F, 1); + pressure_data_high &= 0b00000111; //you only needs bits 2 to 0 + + //Read the pressure data lower 16 bits: + unsigned int pressure_data_low = readRegister(0x20, 2); + //combine the two parts into one 19-bit number: + long pressure = ((pressure_data_high << 16) | pressure_data_low)/4; + + // display the temperature: + Serial.println("\tPressure [Pa]=" + String(pressure)); + } +} + +//Read from or write to register from the SCP1000: +unsigned int readRegister(byte thisRegister, int bytesToRead ) { + byte inByte = 0; // incoming byte from the SPI + unsigned int result = 0; // result to return + + // SCP1000 expects the register name in the upper 6 bits + // of the byte. So shift the bits left by two bits: + thisRegister = thisRegister << 2; + // now combine the address and the command into one byte + dataToSend = thisRegister & READ; + + // take the chip select low to select the device: + digitalWrite(chipSelectPin, LOW); + // send the device the register you want to read: + SPI.transfer(dataToSend); + // send a value of 0 to read the first byte returned: + result = SPI.transfer(0x00); + // decrement the number of bytes left to read: + bytesToRead--; + // if you still have another byte to read: + if (bytesToRead > 0) { + // shift the first byte left, then get the second byte: + result = result << 8; + inByte = SPI.transfer(0x00); + // combine the byte you just got with the previous one: + result = result | inByte; + // decrement the number of bytes left to read: + bytesToRead--; + } + // take the chip select high to de-select: + digitalWrite(chipSelectPin, HIGH); + // return the result: + return(result); +} + + +//Sends a write command to SCP1000 + +void writeRegister(byte thisRegister, byte thisValue) { + + // SCP1000 expects the register address in the upper 6 bits + // of the byte. So shift the bits left by two bits: + thisRegister = thisRegister << 2; + // now combine the register address and the command into one byte: + dataToSend = thisRegister | WRITE; + + // take the chip select low to select the device: + digitalWrite(chipSelectPin, LOW); + + SPI.transfer(dataToSend); //Send register location + SPI.transfer(thisValue); //Send value to record into register + + // take the chip select high to de-select: + digitalWrite(chipSelectPin, HIGH); +} + + + diff --git a/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.ino b/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.ino new file mode 100644 index 0000000..ef97dae --- /dev/null +++ b/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.ino @@ -0,0 +1,71 @@ +/* + Digital Pot Control + + This example controls an Analog Devices AD5206 digital potentiometer. + The AD5206 has 6 potentiometer channels. Each channel's pins are labeled + A - connect this to voltage + W - this is the pot's wiper, which changes when you set it + B - connect this to ground. + + The AD5206 is SPI-compatible,and to command it, you send two bytes, + one with the channel number (0 - 5) and one with the resistance value for the + channel (0 - 255). + + The circuit: + * All A pins of AD5206 connected to +5V + * All B pins of AD5206 connected to ground + * An LED and a 220-ohm resisor in series connected from each W pin to ground + * CS - to digital pin 10 (SS pin) + * SDI - to digital pin 11 (MOSI pin) + * CLK - to digital pin 13 (SCK pin) + + created 10 Aug 2010 + by Tom Igoe + + Thanks to Heather Dewey-Hagborg for the original tutorial, 2005 + +*/ + + +// inslude the SPI library: +#include <SPI.h> + + +// set pin 10 as the slave select for the digital pot: +const int slaveSelectPin = 10; + +void setup() { + // set the slaveSelectPin as an output: + pinMode (slaveSelectPin, OUTPUT); + // initialize SPI: + SPI.begin(); +} + +void loop() { + // go through the six channels of the digital pot: + for (int channel = 0; channel < 6; channel++) { + // change the resistance on this channel from min to max: + for (int level = 0; level < 255; level++) { + digitalPotWrite(channel, level); + delay(10); + } + // wait a second at the top: + delay(100); + // change the resistance on this channel from max to min: + for (int level = 0; level < 255; level++) { + digitalPotWrite(channel, 255 - level); + delay(10); + } + } + +} + +int digitalPotWrite(int address, int value) { + // take the SS pin low to select the chip: + digitalWrite(slaveSelectPin,LOW); + // send in the address and value via SPI: + SPI.transfer(address); + SPI.transfer(value); + // take the SS pin high to de-select the chip: + digitalWrite(slaveSelectPin,HIGH); +}
\ No newline at end of file diff --git a/libraries/SPI/keywords.txt b/libraries/SPI/keywords.txt new file mode 100644 index 0000000..fa76165 --- /dev/null +++ b/libraries/SPI/keywords.txt @@ -0,0 +1,36 @@ +####################################### +# Syntax Coloring Map SPI +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +SPI KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### +begin KEYWORD2 +end KEYWORD2 +transfer KEYWORD2 +setBitOrder KEYWORD2 +setDataMode KEYWORD2 +setClockDivider KEYWORD2 + + +####################################### +# Constants (LITERAL1) +####################################### +SPI_CLOCK_DIV4 LITERAL1 +SPI_CLOCK_DIV16 LITERAL1 +SPI_CLOCK_DIV64 LITERAL1 +SPI_CLOCK_DIV128 LITERAL1 +SPI_CLOCK_DIV2 LITERAL1 +SPI_CLOCK_DIV8 LITERAL1 +SPI_CLOCK_DIV32 LITERAL1 +SPI_CLOCK_DIV64 LITERAL1 +SPI_MODE0 LITERAL1 +SPI_MODE1 LITERAL1 +SPI_MODE2 LITERAL1 +SPI_MODE3 LITERAL1
\ No newline at end of file diff --git a/libraries/Servo/Servo.cpp b/libraries/Servo/Servo.cpp new file mode 100755 index 0000000..acac29a --- /dev/null +++ b/libraries/Servo/Servo.cpp @@ -0,0 +1,337 @@ +/*
+ Servo.cpp - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
+ Copyright (c) 2009 Michael Margolis. All right reserved.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+
+ A servo is activated by creating an instance of the Servo class passing the desired pin to the attach() method.
+ The servos are pulsed in the background using the value most recently written using the write() method
+
+ Note that analogWrite of PWM on pins associated with the timer are disabled when the first servo is attached.
+ Timers are seized as needed in groups of 12 servos - 24 servos use two timers, 48 servos will use four.
+
+ The methods are:
+
+ Servo - Class for manipulating servo motors connected to Arduino pins.
+
+ attach(pin ) - Attaches a servo motor to an i/o pin.
+ attach(pin, min, max ) - Attaches to a pin setting min and max values in microseconds
+ default min is 544, max is 2400
+
+ write() - Sets the servo angle in degrees. (invalid angle that is valid as pulse in microseconds is treated as microseconds)
+ writeMicroseconds() - Sets the servo pulse width in microseconds
+ read() - Gets the last written servo pulse width as an angle between 0 and 180.
+ readMicroseconds() - Gets the last written servo pulse width in microseconds. (was read_us() in first release)
+ attached() - Returns true if there is a servo attached.
+ detach() - Stops an attached servos from pulsing its i/o pin.
+
+*/
+
+#include <avr/interrupt.h>
+#include <Arduino.h>
+
+#include "Servo.h"
+
+#define usToTicks(_us) (( clockCyclesPerMicrosecond()* _us) / 8) // converts microseconds to tick (assumes prescale of 8) // 12 Aug 2009
+#define ticksToUs(_ticks) (( (unsigned)_ticks * 8)/ clockCyclesPerMicrosecond() ) // converts from ticks back to microseconds
+
+
+#define TRIM_DURATION 2 // compensation ticks to trim adjust for digitalWrite delays // 12 August 2009
+
+//#define NBR_TIMERS (MAX_SERVOS / SERVOS_PER_TIMER)
+
+static servo_t servos[MAX_SERVOS]; // static array of servo structures
+static volatile int8_t Channel[_Nbr_16timers ]; // counter for the servo being pulsed for each timer (or -1 if refresh interval)
+
+uint8_t ServoCount = 0; // the total number of attached servos
+
+
+// convenience macros
+#define SERVO_INDEX_TO_TIMER(_servo_nbr) ((timer16_Sequence_t)(_servo_nbr / SERVOS_PER_TIMER)) // returns the timer controlling this servo
+#define SERVO_INDEX_TO_CHANNEL(_servo_nbr) (_servo_nbr % SERVOS_PER_TIMER) // returns the index of the servo on this timer
+#define SERVO_INDEX(_timer,_channel) ((_timer*SERVOS_PER_TIMER) + _channel) // macro to access servo index by timer and channel
+#define SERVO(_timer,_channel) (servos[SERVO_INDEX(_timer,_channel)]) // macro to access servo class by timer and channel
+
+#define SERVO_MIN() (MIN_PULSE_WIDTH - this->min * 4) // minimum value in uS for this servo
+#define SERVO_MAX() (MAX_PULSE_WIDTH - this->max * 4) // maximum value in uS for this servo
+
+/************ static functions common to all instances ***********************/
+
+static inline void handle_interrupts(timer16_Sequence_t timer, volatile uint16_t *TCNTn, volatile uint16_t* OCRnA)
+{
+ if( Channel[timer] < 0 )
+ *TCNTn = 0; // channel set to -1 indicated that refresh interval completed so reset the timer
+ else{
+ if( SERVO_INDEX(timer,Channel[timer]) < ServoCount && SERVO(timer,Channel[timer]).Pin.isActive == true )
+ digitalWrite( SERVO(timer,Channel[timer]).Pin.nbr,LOW); // pulse this channel low if activated
+ }
+
+ Channel[timer]++; // increment to the next channel
+ if( SERVO_INDEX(timer,Channel[timer]) < ServoCount && Channel[timer] < SERVOS_PER_TIMER) {
+ *OCRnA = *TCNTn + SERVO(timer,Channel[timer]).ticks;
+ if(SERVO(timer,Channel[timer]).Pin.isActive == true) // check if activated
+ digitalWrite( SERVO(timer,Channel[timer]).Pin.nbr,HIGH); // its an active channel so pulse it high
+ }
+ else {
+ // finished all channels so wait for the refresh period to expire before starting over
+ if( (unsigned)*TCNTn < (usToTicks(REFRESH_INTERVAL) + 4) ) // allow a few ticks to ensure the next OCR1A not missed
+ *OCRnA = (unsigned int)usToTicks(REFRESH_INTERVAL);
+ else
+ *OCRnA = *TCNTn + 4; // at least REFRESH_INTERVAL has elapsed
+ Channel[timer] = -1; // this will get incremented at the end of the refresh period to start again at the first channel
+ }
+}
+
+#ifndef WIRING // Wiring pre-defines signal handlers so don't define any if compiling for the Wiring platform
+// Interrupt handlers for Arduino
+#if defined(_useTimer1)
+SIGNAL (TIMER1_COMPA_vect)
+{
+ handle_interrupts(_timer1, &TCNT1, &OCR1A);
+}
+#endif
+
+#if defined(_useTimer3)
+SIGNAL (TIMER3_COMPA_vect)
+{
+ handle_interrupts(_timer3, &TCNT3, &OCR3A);
+}
+#endif
+
+#if defined(_useTimer4)
+SIGNAL (TIMER4_COMPA_vect)
+{
+ handle_interrupts(_timer4, &TCNT4, &OCR4A);
+}
+#endif
+
+#if defined(_useTimer5)
+SIGNAL (TIMER5_COMPA_vect)
+{
+ handle_interrupts(_timer5, &TCNT5, &OCR5A);
+}
+#endif
+
+#elif defined WIRING
+// Interrupt handlers for Wiring
+#if defined(_useTimer1)
+void Timer1Service()
+{
+ handle_interrupts(_timer1, &TCNT1, &OCR1A);
+}
+#endif
+#if defined(_useTimer3)
+void Timer3Service()
+{
+ handle_interrupts(_timer3, &TCNT3, &OCR3A);
+}
+#endif
+#endif
+
+
+static void initISR(timer16_Sequence_t timer)
+{
+#if defined (_useTimer1)
+ if(timer == _timer1) {
+ TCCR1A = 0; // normal counting mode
+ TCCR1B = _BV(CS11); // set prescaler of 8
+ TCNT1 = 0; // clear the timer count
+#if defined(__AVR_ATmega8__)|| defined(__AVR_ATmega128__)
+ TIFR |= _BV(OCF1A); // clear any pending interrupts;
+ TIMSK |= _BV(OCIE1A) ; // enable the output compare interrupt
+#else
+ // here if not ATmega8 or ATmega128
+ TIFR1 |= _BV(OCF1A); // clear any pending interrupts;
+ TIMSK1 |= _BV(OCIE1A) ; // enable the output compare interrupt
+#endif
+#if defined(WIRING)
+ timerAttach(TIMER1OUTCOMPAREA_INT, Timer1Service);
+#endif
+ }
+#endif
+
+#if defined (_useTimer3)
+ if(timer == _timer3) {
+ TCCR3A = 0; // normal counting mode
+ TCCR3B = _BV(CS31); // set prescaler of 8
+ TCNT3 = 0; // clear the timer count
+#if defined(__AVR_ATmega128__)
+ TIFR |= _BV(OCF3A); // clear any pending interrupts;
+ ETIMSK |= _BV(OCIE3A); // enable the output compare interrupt
+#else
+ TIFR3 = _BV(OCF3A); // clear any pending interrupts;
+ TIMSK3 = _BV(OCIE3A) ; // enable the output compare interrupt
+#endif
+#if defined(WIRING)
+ timerAttach(TIMER3OUTCOMPAREA_INT, Timer3Service); // for Wiring platform only
+#endif
+ }
+#endif
+
+#if defined (_useTimer4)
+ if(timer == _timer4) {
+ TCCR4A = 0; // normal counting mode
+ TCCR4B = _BV(CS41); // set prescaler of 8
+ TCNT4 = 0; // clear the timer count
+ TIFR4 = _BV(OCF4A); // clear any pending interrupts;
+ TIMSK4 = _BV(OCIE4A) ; // enable the output compare interrupt
+ }
+#endif
+
+#if defined (_useTimer5)
+ if(timer == _timer5) {
+ TCCR5A = 0; // normal counting mode
+ TCCR5B = _BV(CS51); // set prescaler of 8
+ TCNT5 = 0; // clear the timer count
+ TIFR5 = _BV(OCF5A); // clear any pending interrupts;
+ TIMSK5 = _BV(OCIE5A) ; // enable the output compare interrupt
+ }
+#endif
+}
+
+static void finISR(timer16_Sequence_t timer)
+{
+ //disable use of the given timer
+#if defined WIRING // Wiring
+ if(timer == _timer1) {
+ #if defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__)
+ TIMSK1 &= ~_BV(OCIE1A) ; // disable timer 1 output compare interrupt
+ #else
+ TIMSK &= ~_BV(OCIE1A) ; // disable timer 1 output compare interrupt
+ #endif
+ timerDetach(TIMER1OUTCOMPAREA_INT);
+ }
+ else if(timer == _timer3) {
+ #if defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__)
+ TIMSK3 &= ~_BV(OCIE3A); // disable the timer3 output compare A interrupt
+ #else
+ ETIMSK &= ~_BV(OCIE3A); // disable the timer3 output compare A interrupt
+ #endif
+ timerDetach(TIMER3OUTCOMPAREA_INT);
+ }
+#else
+ //For arduino - in future: call here to a currently undefined function to reset the timer
+#endif
+}
+
+static boolean isTimerActive(timer16_Sequence_t timer)
+{
+ // returns true if any servo is active on this timer
+ for(uint8_t channel=0; channel < SERVOS_PER_TIMER; channel++) {
+ if(SERVO(timer,channel).Pin.isActive == true)
+ return true;
+ }
+ return false;
+}
+
+
+/****************** end of static functions ******************************/
+
+Servo::Servo()
+{
+ if( ServoCount < MAX_SERVOS) {
+ this->servoIndex = ServoCount++; // assign a servo index to this instance
+ servos[this->servoIndex].ticks = usToTicks(DEFAULT_PULSE_WIDTH); // store default values - 12 Aug 2009
+ }
+ else
+ this->servoIndex = INVALID_SERVO ; // too many servos
+}
+
+uint8_t Servo::attach(int pin)
+{
+ return this->attach(pin, MIN_PULSE_WIDTH, MAX_PULSE_WIDTH);
+}
+
+uint8_t Servo::attach(int pin, int min, int max)
+{
+ if(this->servoIndex < MAX_SERVOS ) {
+ pinMode( pin, OUTPUT) ; // set servo pin to output
+ servos[this->servoIndex].Pin.nbr = pin;
+ // todo min/max check: abs(min - MIN_PULSE_WIDTH) /4 < 128
+ this->min = (MIN_PULSE_WIDTH - min)/4; //resolution of min/max is 4 uS
+ this->max = (MAX_PULSE_WIDTH - max)/4;
+ // initialize the timer if it has not already been initialized
+ timer16_Sequence_t timer = SERVO_INDEX_TO_TIMER(servoIndex);
+ if(isTimerActive(timer) == false)
+ initISR(timer);
+ servos[this->servoIndex].Pin.isActive = true; // this must be set after the check for isTimerActive
+ }
+ return this->servoIndex ;
+}
+
+void Servo::detach()
+{
+ servos[this->servoIndex].Pin.isActive = false;
+ timer16_Sequence_t timer = SERVO_INDEX_TO_TIMER(servoIndex);
+ if(isTimerActive(timer) == false) {
+ finISR(timer);
+ }
+}
+
+void Servo::write(int value)
+{
+ if(value < MIN_PULSE_WIDTH)
+ { // treat values less than 544 as angles in degrees (valid values in microseconds are handled as microseconds)
+ if(value < 0) value = 0;
+ if(value > 180) value = 180;
+ value = map(value, 0, 180, SERVO_MIN(), SERVO_MAX());
+ }
+ this->writeMicroseconds(value);
+}
+
+void Servo::writeMicroseconds(int value)
+{
+ // calculate and store the values for the given channel
+ byte channel = this->servoIndex;
+ if( (channel >= 0) && (channel < MAX_SERVOS) ) // ensure channel is valid
+ {
+ if( value < SERVO_MIN() ) // ensure pulse width is valid
+ value = SERVO_MIN();
+ else if( value > SERVO_MAX() )
+ value = SERVO_MAX();
+
+ value = value - TRIM_DURATION;
+ value = usToTicks(value); // convert to ticks after compensating for interrupt overhead - 12 Aug 2009
+
+ uint8_t oldSREG = SREG;
+ cli();
+ servos[channel].ticks = value;
+ SREG = oldSREG;
+ }
+}
+
+int Servo::read() // return the value as degrees
+{
+ return map( this->readMicroseconds()+1, SERVO_MIN(), SERVO_MAX(), 0, 180);
+}
+
+int Servo::readMicroseconds()
+{
+ unsigned int pulsewidth;
+ if( this->servoIndex != INVALID_SERVO )
+ pulsewidth = ticksToUs(servos[this->servoIndex].ticks) + TRIM_DURATION ; // 12 aug 2009
+ else
+ pulsewidth = 0;
+
+ return pulsewidth;
+}
+
+bool Servo::attached()
+{
+ return servos[this->servoIndex].Pin.isActive ;
+}
diff --git a/libraries/Servo/Servo.h b/libraries/Servo/Servo.h new file mode 100755 index 0000000..bf3e012 --- /dev/null +++ b/libraries/Servo/Servo.h @@ -0,0 +1,127 @@ +/* + Servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2 + Copyright (c) 2009 Michael Margolis. All right reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +/* + + A servo is activated by creating an instance of the Servo class passing the desired pin to the attach() method. + The servos are pulsed in the background using the value most recently written using the write() method + + Note that analogWrite of PWM on pins associated with the timer are disabled when the first servo is attached. + Timers are seized as needed in groups of 12 servos - 24 servos use two timers, 48 servos will use four. + The sequence used to sieze timers is defined in timers.h + + The methods are: + + Servo - Class for manipulating servo motors connected to Arduino pins. + + attach(pin ) - Attaches a servo motor to an i/o pin. + attach(pin, min, max ) - Attaches to a pin setting min and max values in microseconds + default min is 544, max is 2400 + + write() - Sets the servo angle in degrees. (invalid angle that is valid as pulse in microseconds is treated as microseconds) + writeMicroseconds() - Sets the servo pulse width in microseconds + read() - Gets the last written servo pulse width as an angle between 0 and 180. + readMicroseconds() - Gets the last written servo pulse width in microseconds. (was read_us() in first release) + attached() - Returns true if there is a servo attached. + detach() - Stops an attached servos from pulsing its i/o pin. + */ + +#ifndef Servo_h +#define Servo_h + +#include <inttypes.h> + +/* + * Defines for 16 bit timers used with Servo library + * + * If _useTimerX is defined then TimerX is a 16 bit timer on the curent board + * timer16_Sequence_t enumerates the sequence that the timers should be allocated + * _Nbr_16timers indicates how many 16 bit timers are available. + * + */ + +// Say which 16 bit timers can be used and in what order +#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) +#define _useTimer5 +#define _useTimer1 +#define _useTimer3 +#define _useTimer4 +typedef enum { _timer5, _timer1, _timer3, _timer4, _Nbr_16timers } timer16_Sequence_t ; + +#elif defined(__AVR_ATmega32U4__) +#define _useTimer3 +#define _useTimer1 +typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t ; + +#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__) +#define _useTimer3 +#define _useTimer1 +typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t ; + +#elif defined(__AVR_ATmega128__) ||defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__) +#define _useTimer3 +#define _useTimer1 +typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t ; + +#else // everything else +#define _useTimer1 +typedef enum { _timer1, _Nbr_16timers } timer16_Sequence_t ; +#endif + +#define Servo_VERSION 2 // software version of this library + +#define MIN_PULSE_WIDTH 544 // the shortest pulse sent to a servo +#define MAX_PULSE_WIDTH 2400 // the longest pulse sent to a servo +#define DEFAULT_PULSE_WIDTH 1500 // default pulse width when servo is attached +#define REFRESH_INTERVAL 20000 // minumim time to refresh servos in microseconds + +#define SERVOS_PER_TIMER 12 // the maximum number of servos controlled by one timer +#define MAX_SERVOS (_Nbr_16timers * SERVOS_PER_TIMER) + +#define INVALID_SERVO 255 // flag indicating an invalid servo index + +typedef struct { + uint8_t nbr :6 ; // a pin number from 0 to 63 + uint8_t isActive :1 ; // true if this channel is enabled, pin not pulsed if false +} ServoPin_t ; + +typedef struct { + ServoPin_t Pin; + unsigned int ticks; +} servo_t; + +class Servo +{ +public: + Servo(); + uint8_t attach(int pin); // attach the given pin to the next free channel, sets pinMode, returns channel number or 0 if failure + uint8_t attach(int pin, int min, int max); // as above but also sets min and max values for writes. + void detach(); + void write(int value); // if value is < 200 its treated as an angle, otherwise as pulse width in microseconds + void writeMicroseconds(int value); // Write pulse width in microseconds + int read(); // returns current pulse width as an angle between 0 and 180 degrees + int readMicroseconds(); // returns current pulse width in microseconds for this servo (was read_us() in first release) + bool attached(); // return true if this servo is attached, otherwise false +private: + uint8_t servoIndex; // index into the channel data for this servo + int8_t min; // minimum is this value times 4 added to MIN_PULSE_WIDTH + int8_t max; // maximum is this value times 4 added to MAX_PULSE_WIDTH +}; + +#endif
\ No newline at end of file diff --git a/libraries/Servo/examples/Knob/Knob.ino b/libraries/Servo/examples/Knob/Knob.ino new file mode 100644 index 0000000..886e107 --- /dev/null +++ b/libraries/Servo/examples/Knob/Knob.ino @@ -0,0 +1,22 @@ +// Controlling a servo position using a potentiometer (variable resistor) +// by Michal Rinott <http://people.interaction-ivrea.it/m.rinott> + +#include <Servo.h> + +Servo myservo; // create servo object to control a servo + +int potpin = 0; // analog pin used to connect the potentiometer +int val; // variable to read the value from the analog pin + +void setup() +{ + myservo.attach(9); // attaches the servo on pin 9 to the servo object +} + +void loop() +{ + val = analogRead(potpin); // reads the value of the potentiometer (value between 0 and 1023) + val = map(val, 0, 1023, 0, 179); // scale it to use it with the servo (value between 0 and 180) + myservo.write(val); // sets the servo position according to the scaled value + delay(15); // waits for the servo to get there +} diff --git a/libraries/Servo/examples/Sweep/Sweep.ino b/libraries/Servo/examples/Sweep/Sweep.ino new file mode 100644 index 0000000..fb326e7 --- /dev/null +++ b/libraries/Servo/examples/Sweep/Sweep.ino @@ -0,0 +1,31 @@ +// Sweep +// by BARRAGAN <http://barraganstudio.com> +// This example code is in the public domain. + + +#include <Servo.h> + +Servo myservo; // create servo object to control a servo + // a maximum of eight servo objects can be created + +int pos = 0; // variable to store the servo position + +void setup() +{ + myservo.attach(9); // attaches the servo on pin 9 to the servo object +} + + +void loop() +{ + for(pos = 0; pos < 180; pos += 1) // goes from 0 degrees to 180 degrees + { // in steps of 1 degree + myservo.write(pos); // tell servo to go to position in variable 'pos' + delay(15); // waits 15ms for the servo to reach the position + } + for(pos = 180; pos>=1; pos-=1) // goes from 180 degrees to 0 degrees + { + myservo.write(pos); // tell servo to go to position in variable 'pos' + delay(15); // waits 15ms for the servo to reach the position + } +} diff --git a/libraries/Servo/keywords.txt b/libraries/Servo/keywords.txt new file mode 100755 index 0000000..ca5ba79 --- /dev/null +++ b/libraries/Servo/keywords.txt @@ -0,0 +1,24 @@ +####################################### +# Syntax Coloring Map Servo +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +Servo KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### +attach KEYWORD2 +detach KEYWORD2 +write KEYWORD2 +read KEYWORD2 +attached KEYWORD2 +writeMicroseconds KEYWORD2 +readMicroseconds KEYWORD2 + +####################################### +# Constants (LITERAL1) +####################################### diff --git a/libraries/SoftwareSerial/SoftwareSerial.cpp b/libraries/SoftwareSerial/SoftwareSerial.cpp new file mode 100755 index 0000000..c15bdda --- /dev/null +++ b/libraries/SoftwareSerial/SoftwareSerial.cpp @@ -0,0 +1,515 @@ +/*
+SoftwareSerial.cpp (formerly NewSoftSerial.cpp) -
+Multi-instance software serial library for Arduino/Wiring
+-- Interrupt-driven receive and other improvements by ladyada
+ (http://ladyada.net)
+-- Tuning, circular buffer, derivation from class Print/Stream,
+ multi-instance support, porting to 8MHz processors,
+ various optimizations, PROGMEM delay tables, inverse logic and
+ direct port writing by Mikal Hart (http://www.arduiniana.org)
+-- Pin change interrupt macros by Paul Stoffregen (http://www.pjrc.com)
+-- 20MHz processor support by Garrett Mace (http://www.macetech.com)
+-- ATmega1280/2560 support by Brett Hagman (http://www.roguerobotics.com/)
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+The latest version of this library can always be found at
+http://arduiniana.org.
+*/
+
+// When set, _DEBUG co-opts pins 11 and 13 for debugging with an
+// oscilloscope or logic analyzer. Beware: it also slightly modifies
+// the bit times, so don't rely on it too much at high baud rates
+#define _DEBUG 0
+#define _DEBUG_PIN1 11
+#define _DEBUG_PIN2 13
+//
+// Includes
+//
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+#include "Arduino.h"
+#include "SoftwareSerial.h"
+//
+// Lookup table
+//
+typedef struct _DELAY_TABLE
+{
+ long baud;
+ unsigned short rx_delay_centering;
+ unsigned short rx_delay_intrabit;
+ unsigned short rx_delay_stopbit;
+ unsigned short tx_delay;
+} DELAY_TABLE;
+
+#if F_CPU == 16000000
+
+static const DELAY_TABLE PROGMEM table[] =
+{
+ // baud rxcenter rxintra rxstop tx
+ { 115200, 1, 17, 17, 12, },
+ { 57600, 10, 37, 37, 33, },
+ { 38400, 25, 57, 57, 54, },
+ { 31250, 31, 70, 70, 68, },
+ { 28800, 34, 77, 77, 74, },
+ { 19200, 54, 117, 117, 114, },
+ { 14400, 74, 156, 156, 153, },
+ { 9600, 114, 236, 236, 233, },
+ { 4800, 233, 474, 474, 471, },
+ { 2400, 471, 950, 950, 947, },
+ { 1200, 947, 1902, 1902, 1899, },
+ { 300, 3804, 7617, 7617, 7614, },
+};
+
+const int XMIT_START_ADJUSTMENT = 5;
+
+#elif F_CPU == 8000000
+
+static const DELAY_TABLE table[] PROGMEM =
+{
+ // baud rxcenter rxintra rxstop tx
+ { 115200, 1, 5, 5, 3, },
+ { 57600, 1, 15, 15, 13, },
+ { 38400, 2, 25, 26, 23, },
+ { 31250, 7, 32, 33, 29, },
+ { 28800, 11, 35, 35, 32, },
+ { 19200, 20, 55, 55, 52, },
+ { 14400, 30, 75, 75, 72, },
+ { 9600, 50, 114, 114, 112, },
+ { 4800, 110, 233, 233, 230, },
+ { 2400, 229, 472, 472, 469, },
+ { 1200, 467, 948, 948, 945, },
+ { 300, 1895, 3805, 3805, 3802, },
+};
+
+const int XMIT_START_ADJUSTMENT = 4;
+
+#elif F_CPU == 20000000
+
+// 20MHz support courtesy of the good people at macegr.com.
+// Thanks, Garrett!
+
+static const DELAY_TABLE PROGMEM table[] =
+{
+ // baud rxcenter rxintra rxstop tx
+ { 115200, 3, 21, 21, 18, },
+ { 57600, 20, 43, 43, 41, },
+ { 38400, 37, 73, 73, 70, },
+ { 31250, 45, 89, 89, 88, },
+ { 28800, 46, 98, 98, 95, },
+ { 19200, 71, 148, 148, 145, },
+ { 14400, 96, 197, 197, 194, },
+ { 9600, 146, 297, 297, 294, },
+ { 4800, 296, 595, 595, 592, },
+ { 2400, 592, 1189, 1189, 1186, },
+ { 1200, 1187, 2379, 2379, 2376, },
+ { 300, 4759, 9523, 9523, 9520, },
+};
+
+const int XMIT_START_ADJUSTMENT = 6;
+
+#else
+
+#error This version of SoftwareSerial supports only 20, 16 and 8MHz processors
+
+#endif
+
+//
+// Statics
+//
+SoftwareSerial *SoftwareSerial::active_object = 0;
+char SoftwareSerial::_receive_buffer[_SS_MAX_RX_BUFF];
+volatile uint8_t SoftwareSerial::_receive_buffer_tail = 0;
+volatile uint8_t SoftwareSerial::_receive_buffer_head = 0;
+
+//
+// Debugging
+//
+// This function generates a brief pulse
+// for debugging or measuring on an oscilloscope.
+inline void DebugPulse(uint8_t pin, uint8_t count)
+{
+#if _DEBUG
+ volatile uint8_t *pport = portOutputRegister(digitalPinToPort(pin));
+
+ uint8_t val = *pport;
+ while (count--)
+ {
+ *pport = val | digitalPinToBitMask(pin);
+ *pport = val;
+ }
+#endif
+}
+
+//
+// Private methods
+//
+
+/* static */
+inline void SoftwareSerial::tunedDelay(uint16_t delay) {
+ uint8_t tmp=0;
+
+ asm volatile("sbiw %0, 0x01 \n\t"
+ "ldi %1, 0xFF \n\t"
+ "cpi %A0, 0xFF \n\t"
+ "cpc %B0, %1 \n\t"
+ "brne .-10 \n\t"
+ : "+r" (delay), "+a" (tmp)
+ : "0" (delay)
+ );
+}
+
+// This function sets the current object as the "listening"
+// one and returns true if it replaces another
+bool SoftwareSerial::listen()
+{
+ if (active_object != this)
+ {
+ _buffer_overflow = false;
+ uint8_t oldSREG = SREG;
+ cli();
+ _receive_buffer_head = _receive_buffer_tail = 0;
+ active_object = this;
+ SREG = oldSREG;
+ return true;
+ }
+
+ return false;
+}
+
+//
+// The receive routine called by the interrupt handler
+//
+void SoftwareSerial::recv()
+{
+
+#if GCC_VERSION < 40302
+// Work-around for avr-gcc 4.3.0 OSX version bug
+// Preserve the registers that the compiler misses
+// (courtesy of Arduino forum user *etracer*)
+ asm volatile(
+ "push r18 \n\t"
+ "push r19 \n\t"
+ "push r20 \n\t"
+ "push r21 \n\t"
+ "push r22 \n\t"
+ "push r23 \n\t"
+ "push r26 \n\t"
+ "push r27 \n\t"
+ ::);
+#endif
+
+ uint8_t d = 0;
+
+ // If RX line is high, then we don't see any start bit
+ // so interrupt is probably not for us
+ if (_inverse_logic ? rx_pin_read() : !rx_pin_read())
+ {
+ // Wait approximately 1/2 of a bit width to "center" the sample
+ tunedDelay(_rx_delay_centering);
+ DebugPulse(_DEBUG_PIN2, 1);
+
+ // Read each of the 8 bits
+ for (uint8_t i=0x1; i; i <<= 1)
+ {
+ tunedDelay(_rx_delay_intrabit);
+ DebugPulse(_DEBUG_PIN2, 1);
+ uint8_t noti = ~i;
+ if (rx_pin_read())
+ d |= i;
+ else // else clause added to ensure function timing is ~balanced
+ d &= noti;
+ }
+
+ // skip the stop bit
+ tunedDelay(_rx_delay_stopbit);
+ DebugPulse(_DEBUG_PIN2, 1);
+
+ if (_inverse_logic)
+ d = ~d;
+
+ // if buffer full, set the overflow flag and return
+ if ((_receive_buffer_tail + 1) % _SS_MAX_RX_BUFF != _receive_buffer_head)
+ {
+ // save new data in buffer: tail points to where byte goes
+ _receive_buffer[_receive_buffer_tail] = d; // save new byte
+ _receive_buffer_tail = (_receive_buffer_tail + 1) % _SS_MAX_RX_BUFF;
+ }
+ else
+ {
+#if _DEBUG // for scope: pulse pin as overflow indictator
+ DebugPulse(_DEBUG_PIN1, 1);
+#endif
+ _buffer_overflow = true;
+ }
+ }
+
+#if GCC_VERSION < 40302
+// Work-around for avr-gcc 4.3.0 OSX version bug
+// Restore the registers that the compiler misses
+ asm volatile(
+ "pop r27 \n\t"
+ "pop r26 \n\t"
+ "pop r23 \n\t"
+ "pop r22 \n\t"
+ "pop r21 \n\t"
+ "pop r20 \n\t"
+ "pop r19 \n\t"
+ "pop r18 \n\t"
+ ::);
+#endif
+}
+
+void SoftwareSerial::tx_pin_write(uint8_t pin_state)
+{
+ if (pin_state == LOW)
+ *_transmitPortRegister &= ~_transmitBitMask;
+ else
+ *_transmitPortRegister |= _transmitBitMask;
+}
+
+uint8_t SoftwareSerial::rx_pin_read()
+{
+ return *_receivePortRegister & _receiveBitMask;
+}
+
+//
+// Interrupt handling
+//
+
+/* static */
+inline void SoftwareSerial::handle_interrupt()
+{
+ if (active_object)
+ {
+ active_object->recv();
+ }
+}
+
+#if defined(PCINT0_vect)
+ISR(PCINT0_vect)
+{
+ SoftwareSerial::handle_interrupt();
+}
+#endif
+
+#if defined(PCINT1_vect)
+ISR(PCINT1_vect)
+{
+ SoftwareSerial::handle_interrupt();
+}
+#endif
+
+#if defined(PCINT2_vect)
+ISR(PCINT2_vect)
+{
+ SoftwareSerial::handle_interrupt();
+}
+#endif
+
+#if defined(PCINT3_vect)
+ISR(PCINT3_vect)
+{
+ SoftwareSerial::handle_interrupt();
+}
+#endif
+
+//
+// Constructor
+//
+SoftwareSerial::SoftwareSerial(uint8_t receivePin, uint8_t transmitPin, bool inverse_logic /* = false */) :
+ _rx_delay_centering(0),
+ _rx_delay_intrabit(0),
+ _rx_delay_stopbit(0),
+ _tx_delay(0),
+ _buffer_overflow(false),
+ _inverse_logic(inverse_logic)
+{
+ setTX(transmitPin);
+ setRX(receivePin);
+}
+
+//
+// Destructor
+//
+SoftwareSerial::~SoftwareSerial()
+{
+ end();
+}
+
+void SoftwareSerial::setTX(uint8_t tx)
+{
+ pinMode(tx, OUTPUT);
+ digitalWrite(tx, HIGH);
+ _transmitBitMask = digitalPinToBitMask(tx);
+ uint8_t port = digitalPinToPort(tx);
+ _transmitPortRegister = portOutputRegister(port);
+}
+
+void SoftwareSerial::setRX(uint8_t rx)
+{
+ pinMode(rx, INPUT);
+ if (!_inverse_logic)
+ digitalWrite(rx, HIGH); // pullup for normal logic!
+ _receivePin = rx;
+ _receiveBitMask = digitalPinToBitMask(rx);
+ uint8_t port = digitalPinToPort(rx);
+ _receivePortRegister = portInputRegister(port);
+}
+
+//
+// Public methods
+//
+
+void SoftwareSerial::begin(long speed)
+{
+ _rx_delay_centering = _rx_delay_intrabit = _rx_delay_stopbit = _tx_delay = 0;
+
+ for (unsigned i=0; i<sizeof(table)/sizeof(table[0]); ++i)
+ {
+ long baud = pgm_read_dword(&table[i].baud);
+ if (baud == speed)
+ {
+ _rx_delay_centering = pgm_read_word(&table[i].rx_delay_centering);
+ _rx_delay_intrabit = pgm_read_word(&table[i].rx_delay_intrabit);
+ _rx_delay_stopbit = pgm_read_word(&table[i].rx_delay_stopbit);
+ _tx_delay = pgm_read_word(&table[i].tx_delay);
+ break;
+ }
+ }
+
+ // Set up RX interrupts, but only if we have a valid RX baud rate
+ if (_rx_delay_stopbit)
+ {
+ if (digitalPinToPCICR(_receivePin))
+ {
+ *digitalPinToPCICR(_receivePin) |= _BV(digitalPinToPCICRbit(_receivePin));
+ *digitalPinToPCMSK(_receivePin) |= _BV(digitalPinToPCMSKbit(_receivePin));
+ }
+ tunedDelay(_tx_delay); // if we were low this establishes the end
+ }
+
+#if _DEBUG
+ pinMode(_DEBUG_PIN1, OUTPUT);
+ pinMode(_DEBUG_PIN2, OUTPUT);
+#endif
+
+ listen();
+}
+
+void SoftwareSerial::end()
+{
+ if (digitalPinToPCMSK(_receivePin))
+ *digitalPinToPCMSK(_receivePin) &= ~_BV(digitalPinToPCMSKbit(_receivePin));
+}
+
+
+// Read data from buffer
+int SoftwareSerial::read()
+{
+ if (!isListening())
+ return -1;
+
+ // Empty buffer?
+ if (_receive_buffer_head == _receive_buffer_tail)
+ return -1;
+
+ // Read from "head"
+ uint8_t d = _receive_buffer[_receive_buffer_head]; // grab next byte
+ _receive_buffer_head = (_receive_buffer_head + 1) % _SS_MAX_RX_BUFF;
+ return d;
+}
+
+int SoftwareSerial::available()
+{
+ if (!isListening())
+ return 0;
+
+ return (_receive_buffer_tail + _SS_MAX_RX_BUFF - _receive_buffer_head) % _SS_MAX_RX_BUFF;
+}
+
+size_t SoftwareSerial::write(uint8_t b)
+{
+ if (_tx_delay == 0) {
+ setWriteError();
+ return 0;
+ }
+
+ uint8_t oldSREG = SREG;
+ cli(); // turn off interrupts for a clean txmit
+
+ // Write the start bit
+ tx_pin_write(_inverse_logic ? HIGH : LOW);
+ tunedDelay(_tx_delay + XMIT_START_ADJUSTMENT);
+
+ // Write each of the 8 bits
+ if (_inverse_logic)
+ {
+ for (byte mask = 0x01; mask; mask <<= 1)
+ {
+ if (b & mask) // choose bit
+ tx_pin_write(LOW); // send 1
+ else
+ tx_pin_write(HIGH); // send 0
+
+ tunedDelay(_tx_delay);
+ }
+
+ tx_pin_write(LOW); // restore pin to natural state
+ }
+ else
+ {
+ for (byte mask = 0x01; mask; mask <<= 1)
+ {
+ if (b & mask) // choose bit
+ tx_pin_write(HIGH); // send 1
+ else
+ tx_pin_write(LOW); // send 0
+
+ tunedDelay(_tx_delay);
+ }
+
+ tx_pin_write(HIGH); // restore pin to natural state
+ }
+
+ SREG = oldSREG; // turn interrupts back on
+ tunedDelay(_tx_delay);
+
+ return 1;
+}
+
+void SoftwareSerial::flush()
+{
+ if (!isListening())
+ return;
+
+ uint8_t oldSREG = SREG;
+ cli();
+ _receive_buffer_head = _receive_buffer_tail = 0;
+ SREG = oldSREG;
+}
+
+int SoftwareSerial::peek()
+{
+ if (!isListening())
+ return -1;
+
+ // Empty buffer?
+ if (_receive_buffer_head == _receive_buffer_tail)
+ return -1;
+
+ // Read from "head"
+ return _receive_buffer[_receive_buffer_head];
+}
diff --git a/libraries/SoftwareSerial/SoftwareSerial.h b/libraries/SoftwareSerial/SoftwareSerial.h new file mode 100755 index 0000000..a6a60b5 --- /dev/null +++ b/libraries/SoftwareSerial/SoftwareSerial.h @@ -0,0 +1,112 @@ +/*
+SoftwareSerial.h (formerly NewSoftSerial.h) -
+Multi-instance software serial library for Arduino/Wiring
+-- Interrupt-driven receive and other improvements by ladyada
+ (http://ladyada.net)
+-- Tuning, circular buffer, derivation from class Print/Stream,
+ multi-instance support, porting to 8MHz processors,
+ various optimizations, PROGMEM delay tables, inverse logic and
+ direct port writing by Mikal Hart (http://www.arduiniana.org)
+-- Pin change interrupt macros by Paul Stoffregen (http://www.pjrc.com)
+-- 20MHz processor support by Garrett Mace (http://www.macetech.com)
+-- ATmega1280/2560 support by Brett Hagman (http://www.roguerobotics.com/)
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+The latest version of this library can always be found at
+http://arduiniana.org.
+*/
+
+#ifndef SoftwareSerial_h
+#define SoftwareSerial_h
+
+#include <inttypes.h>
+#include <Stream.h>
+
+/******************************************************************************
+* Definitions
+******************************************************************************/
+
+#define _SS_MAX_RX_BUFF 64 // RX buffer size
+#ifndef GCC_VERSION
+#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#endif
+
+class SoftwareSerial : public Stream
+{
+private:
+ // per object data
+ uint8_t _receivePin;
+ uint8_t _receiveBitMask;
+ volatile uint8_t *_receivePortRegister;
+ uint8_t _transmitBitMask;
+ volatile uint8_t *_transmitPortRegister;
+
+ uint16_t _rx_delay_centering;
+ uint16_t _rx_delay_intrabit;
+ uint16_t _rx_delay_stopbit;
+ uint16_t _tx_delay;
+
+ uint16_t _buffer_overflow:1;
+ uint16_t _inverse_logic:1;
+
+ // static data
+ static char _receive_buffer[_SS_MAX_RX_BUFF];
+ static volatile uint8_t _receive_buffer_tail;
+ static volatile uint8_t _receive_buffer_head;
+ static SoftwareSerial *active_object;
+
+ // private methods
+ void recv();
+ uint8_t rx_pin_read();
+ void tx_pin_write(uint8_t pin_state);
+ void setTX(uint8_t transmitPin);
+ void setRX(uint8_t receivePin);
+
+ // private static method for timing
+ static inline void tunedDelay(uint16_t delay);
+
+public:
+ // public methods
+ SoftwareSerial(uint8_t receivePin, uint8_t transmitPin, bool inverse_logic = false);
+ ~SoftwareSerial();
+ void begin(long speed);
+ bool listen();
+ void end();
+ bool isListening() { return this == active_object; }
+ bool overflow() { bool ret = _buffer_overflow; _buffer_overflow = false; return ret; }
+ int peek();
+
+ virtual size_t write(uint8_t byte);
+ virtual int read();
+ virtual int available();
+ virtual void flush();
+
+ using Print::write;
+
+ // public only for easy access by interrupt handlers
+ static inline void handle_interrupt();
+};
+
+// Arduino 0012 workaround
+#undef int
+#undef char
+#undef long
+#undef byte
+#undef float
+#undef abs
+#undef round
+
+#endif
diff --git a/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino b/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino new file mode 100644 index 0000000..1f535bd --- /dev/null +++ b/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino @@ -0,0 +1,21 @@ +#include <SoftwareSerial.h> + +SoftwareSerial mySerial(2, 3); + +void setup() +{ + Serial.begin(57600); + Serial.println("Goodnight moon!"); + + // set the data rate for the SoftwareSerial port + mySerial.begin(4800); + mySerial.println("Hello, world?"); +} + +void loop() // run over and over +{ + if (mySerial.available()) + Serial.write(mySerial.read()); + if (Serial.available()) + mySerial.write(Serial.read()); +} diff --git a/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino b/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino new file mode 100644 index 0000000..e870c6f --- /dev/null +++ b/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino @@ -0,0 +1,78 @@ +/* + Software serial multple serial test + + Receives from the two software serial ports, + sends to the hardware serial port. + + In order to listen on a software port, you call port.listen(). + When using two software serial ports, you have to switch ports + by listen()ing on each one in turn. Pick a logical time to switch + ports, like the end of an expected transmission, or when the + buffer is empty. This example switches ports when there is nothing + more to read from a port + + The circuit: + Two devices which communicate serially are needed. + * First serial device's TX attached to digital pin 2, RX to pin 3 + * Second serial device's TX attached to digital pin 4, RX to pin 5 + + created 18 Apr. 2011 + by Tom Igoe + based on Mikal Hart's twoPortRXExample + + This example code is in the public domain. + + */ + +#include <SoftwareSerial.h> +// software serial #1: TX = digital pin 2, RX = digital pin 3 +SoftwareSerial portOne(2, 3); + +// software serial #2: TX = digital pin 4, RX = digital pin 5 +SoftwareSerial portTwo(4, 5); + +void setup() +{ + // Start the hardware serial port + Serial.begin(9600); + + // Start each software serial port + portOne.begin(9600); + portTwo.begin(9600); +} + +void loop() +{ + // By default, the last intialized port is listening. + // when you want to listen on a port, explicitly select it: + portOne.listen(); + Serial.println("Data from port one:"); + // while there is data coming in, read it + // and send to the hardware serial port: + while (portOne.available() > 0) { + char inByte = portOne.read(); + Serial.write(inByte); + } + + // blank line to separate data from the two ports: + Serial.println(); + + // Now listen on the second port + portTwo.listen(); + // while there is data coming in, read it + // and send to the hardware serial port: + Serial.println("Data from port two:"); + while (portTwo.available() > 0) { + char inByte = portTwo.read(); + Serial.write(inByte); + } + + // blank line to separate data from the two ports: + Serial.println(); +} + + + + + + diff --git a/libraries/SoftwareSerial/keywords.txt b/libraries/SoftwareSerial/keywords.txt new file mode 100755 index 0000000..90d4c15 --- /dev/null +++ b/libraries/SoftwareSerial/keywords.txt @@ -0,0 +1,27 @@ +####################################### +# Syntax Coloring Map for NewSoftSerial +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +NewSoftSerial KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### + +begin KEYWORD2 +end KEYWORD2 +read KEYWORD2 +available KEYWORD2 +isListening KEYWORD2 +overflow KEYWORD2 +flush KEYWORD2 +listen KEYWORD2 + +####################################### +# Constants (LITERAL1) +####################################### + diff --git a/libraries/Stepper/Stepper.cpp b/libraries/Stepper/Stepper.cpp new file mode 100644 index 0000000..5d6b5e5 --- /dev/null +++ b/libraries/Stepper/Stepper.cpp @@ -0,0 +1,220 @@ +/* + Stepper.cpp - - Stepper library for Wiring/Arduino - Version 0.4 + + Original library (0.1) by Tom Igoe. + Two-wire modifications (0.2) by Sebastian Gassner + Combination version (0.3) by Tom Igoe and David Mellis + Bug fix for four-wire (0.4) by Tom Igoe, bug fix from Noah Shibley + + Drives a unipolar or bipolar stepper motor using 2 wires or 4 wires + + When wiring multiple stepper motors to a microcontroller, + you quickly run out of output pins, with each motor requiring 4 connections. + + By making use of the fact that at any time two of the four motor + coils are the inverse of the other two, the number of + control connections can be reduced from 4 to 2. + + A slightly modified circuit around a Darlington transistor array or an L293 H-bridge + connects to only 2 microcontroler pins, inverts the signals received, + and delivers the 4 (2 plus 2 inverted ones) output signals required + for driving a stepper motor. + + The sequence of control signals for 4 control wires is as follows: + + Step C0 C1 C2 C3 + 1 1 0 1 0 + 2 0 1 1 0 + 3 0 1 0 1 + 4 1 0 0 1 + + The sequence of controls signals for 2 control wires is as follows + (columns C1 and C2 from above): + + Step C0 C1 + 1 0 1 + 2 1 1 + 3 1 0 + 4 0 0 + + The circuits can be found at + +http://www.arduino.cc/en/Tutorial/Stepper + + + */ + + +#include "Arduino.h" +#include "Stepper.h" + +/* + * two-wire constructor. + * Sets which wires should control the motor. + */ +Stepper::Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2) +{ + this->step_number = 0; // which step the motor is on + this->speed = 0; // the motor speed, in revolutions per minute + this->direction = 0; // motor direction + this->last_step_time = 0; // time stamp in ms of the last step taken + this->number_of_steps = number_of_steps; // total number of steps for this motor + + // Arduino pins for the motor control connection: + this->motor_pin_1 = motor_pin_1; + this->motor_pin_2 = motor_pin_2; + + // setup the pins on the microcontroller: + pinMode(this->motor_pin_1, OUTPUT); + pinMode(this->motor_pin_2, OUTPUT); + + // When there are only 2 pins, set the other two to 0: + this->motor_pin_3 = 0; + this->motor_pin_4 = 0; + + // pin_count is used by the stepMotor() method: + this->pin_count = 2; +} + + +/* + * constructor for four-pin version + * Sets which wires should control the motor. + */ + +Stepper::Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2, int motor_pin_3, int motor_pin_4) +{ + this->step_number = 0; // which step the motor is on + this->speed = 0; // the motor speed, in revolutions per minute + this->direction = 0; // motor direction + this->last_step_time = 0; // time stamp in ms of the last step taken + this->number_of_steps = number_of_steps; // total number of steps for this motor + + // Arduino pins for the motor control connection: + this->motor_pin_1 = motor_pin_1; + this->motor_pin_2 = motor_pin_2; + this->motor_pin_3 = motor_pin_3; + this->motor_pin_4 = motor_pin_4; + + // setup the pins on the microcontroller: + pinMode(this->motor_pin_1, OUTPUT); + pinMode(this->motor_pin_2, OUTPUT); + pinMode(this->motor_pin_3, OUTPUT); + pinMode(this->motor_pin_4, OUTPUT); + + // pin_count is used by the stepMotor() method: + this->pin_count = 4; +} + +/* + Sets the speed in revs per minute + +*/ +void Stepper::setSpeed(long whatSpeed) +{ + this->step_delay = 60L * 1000L / this->number_of_steps / whatSpeed; +} + +/* + Moves the motor steps_to_move steps. If the number is negative, + the motor moves in the reverse direction. + */ +void Stepper::step(int steps_to_move) +{ + int steps_left = abs(steps_to_move); // how many steps to take + + // determine direction based on whether steps_to_mode is + or -: + if (steps_to_move > 0) {this->direction = 1;} + if (steps_to_move < 0) {this->direction = 0;} + + + // decrement the number of steps, moving one step each time: + while(steps_left > 0) { + // move only if the appropriate delay has passed: + if (millis() - this->last_step_time >= this->step_delay) { + // get the timeStamp of when you stepped: + this->last_step_time = millis(); + // increment or decrement the step number, + // depending on direction: + if (this->direction == 1) { + this->step_number++; + if (this->step_number == this->number_of_steps) { + this->step_number = 0; + } + } + else { + if (this->step_number == 0) { + this->step_number = this->number_of_steps; + } + this->step_number--; + } + // decrement the steps left: + steps_left--; + // step the motor to step number 0, 1, 2, or 3: + stepMotor(this->step_number % 4); + } + } +} + +/* + * Moves the motor forward or backwards. + */ +void Stepper::stepMotor(int thisStep) +{ + if (this->pin_count == 2) { + switch (thisStep) { + case 0: /* 01 */ + digitalWrite(motor_pin_1, LOW); + digitalWrite(motor_pin_2, HIGH); + break; + case 1: /* 11 */ + digitalWrite(motor_pin_1, HIGH); + digitalWrite(motor_pin_2, HIGH); + break; + case 2: /* 10 */ + digitalWrite(motor_pin_1, HIGH); + digitalWrite(motor_pin_2, LOW); + break; + case 3: /* 00 */ + digitalWrite(motor_pin_1, LOW); + digitalWrite(motor_pin_2, LOW); + break; + } + } + if (this->pin_count == 4) { + switch (thisStep) { + case 0: // 1010 + digitalWrite(motor_pin_1, HIGH); + digitalWrite(motor_pin_2, LOW); + digitalWrite(motor_pin_3, HIGH); + digitalWrite(motor_pin_4, LOW); + break; + case 1: // 0110 + digitalWrite(motor_pin_1, LOW); + digitalWrite(motor_pin_2, HIGH); + digitalWrite(motor_pin_3, HIGH); + digitalWrite(motor_pin_4, LOW); + break; + case 2: //0101 + digitalWrite(motor_pin_1, LOW); + digitalWrite(motor_pin_2, HIGH); + digitalWrite(motor_pin_3, LOW); + digitalWrite(motor_pin_4, HIGH); + break; + case 3: //1001 + digitalWrite(motor_pin_1, HIGH); + digitalWrite(motor_pin_2, LOW); + digitalWrite(motor_pin_3, LOW); + digitalWrite(motor_pin_4, HIGH); + break; + } + } +} + +/* + version() returns the version of the library: +*/ +int Stepper::version(void) +{ + return 4; +} diff --git a/libraries/Stepper/Stepper.h b/libraries/Stepper/Stepper.h new file mode 100644 index 0000000..4094aee --- /dev/null +++ b/libraries/Stepper/Stepper.h @@ -0,0 +1,83 @@ +/* + Stepper.h - - Stepper library for Wiring/Arduino - Version 0.4 + + Original library (0.1) by Tom Igoe. + Two-wire modifications (0.2) by Sebastian Gassner + Combination version (0.3) by Tom Igoe and David Mellis + Bug fix for four-wire (0.4) by Tom Igoe, bug fix from Noah Shibley + + Drives a unipolar or bipolar stepper motor using 2 wires or 4 wires + + When wiring multiple stepper motors to a microcontroller, + you quickly run out of output pins, with each motor requiring 4 connections. + + By making use of the fact that at any time two of the four motor + coils are the inverse of the other two, the number of + control connections can be reduced from 4 to 2. + + A slightly modified circuit around a Darlington transistor array or an L293 H-bridge + connects to only 2 microcontroler pins, inverts the signals received, + and delivers the 4 (2 plus 2 inverted ones) output signals required + for driving a stepper motor. + + The sequence of control signals for 4 control wires is as follows: + + Step C0 C1 C2 C3 + 1 1 0 1 0 + 2 0 1 1 0 + 3 0 1 0 1 + 4 1 0 0 1 + + The sequence of controls signals for 2 control wires is as follows + (columns C1 and C2 from above): + + Step C0 C1 + 1 0 1 + 2 1 1 + 3 1 0 + 4 0 0 + + The circuits can be found at + http://www.arduino.cc/en/Tutorial/Stepper +*/ + +// ensure this library description is only included once +#ifndef Stepper_h +#define Stepper_h + +// library interface description +class Stepper { + public: + // constructors: + Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2); + Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2, int motor_pin_3, int motor_pin_4); + + // speed setter method: + void setSpeed(long whatSpeed); + + // mover method: + void step(int number_of_steps); + + int version(void); + + private: + void stepMotor(int this_step); + + int direction; // Direction of rotation + int speed; // Speed in RPMs + unsigned long step_delay; // delay between steps, in ms, based on speed + int number_of_steps; // total number of steps this motor can take + int pin_count; // whether you're driving the motor with 2 or 4 pins + int step_number; // which step the motor is on + + // motor pin numbers: + int motor_pin_1; + int motor_pin_2; + int motor_pin_3; + int motor_pin_4; + + long last_step_time; // time stamp in ms of when the last step was taken +}; + +#endif + diff --git a/libraries/Stepper/examples/MotorKnob/MotorKnob.ino b/libraries/Stepper/examples/MotorKnob/MotorKnob.ino new file mode 100644 index 0000000..d428186 --- /dev/null +++ b/libraries/Stepper/examples/MotorKnob/MotorKnob.ino @@ -0,0 +1,41 @@ +/* + * MotorKnob + * + * A stepper motor follows the turns of a potentiometer + * (or other sensor) on analog input 0. + * + * http://www.arduino.cc/en/Reference/Stepper + * This example code is in the public domain. + */ + +#include <Stepper.h> + +// change this to the number of steps on your motor +#define STEPS 100 + +// create an instance of the stepper class, specifying +// the number of steps of the motor and the pins it's +// attached to +Stepper stepper(STEPS, 8, 9, 10, 11); + +// the previous reading from the analog input +int previous = 0; + +void setup() +{ + // set the speed of the motor to 30 RPMs + stepper.setSpeed(30); +} + +void loop() +{ + // get the sensor value + int val = analogRead(0); + + // move a number of steps equal to the change in the + // sensor reading + stepper.step(val - previous); + + // remember the previous value of the sensor + previous = val; +}
\ No newline at end of file diff --git a/libraries/Stepper/examples/stepper_oneRevolution/stepper_oneRevolution.ino b/libraries/Stepper/examples/stepper_oneRevolution/stepper_oneRevolution.ino new file mode 100644 index 0000000..2dbb57d --- /dev/null +++ b/libraries/Stepper/examples/stepper_oneRevolution/stepper_oneRevolution.ino @@ -0,0 +1,44 @@ + +/* + Stepper Motor Control - one revolution + + This program drives a unipolar or bipolar stepper motor. + The motor is attached to digital pins 8 - 11 of the Arduino. + + The motor should revolve one revolution in one direction, then + one revolution in the other direction. + + + Created 11 Mar. 2007 + Modified 30 Nov. 2009 + by Tom Igoe + + */ + +#include <Stepper.h> + +const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution + // for your motor + +// initialize the stepper library on pins 8 through 11: +Stepper myStepper(stepsPerRevolution, 8,9,10,11); + +void setup() { + // set the speed at 60 rpm: + myStepper.setSpeed(60); + // initialize the serial port: + Serial.begin(9600); +} + +void loop() { + // step one revolution in one direction: + Serial.println("clockwise"); + myStepper.step(stepsPerRevolution); + delay(500); + + // step one revolution in the other direction: + Serial.println("counterclockwise"); + myStepper.step(-stepsPerRevolution); + delay(500); +} + diff --git a/libraries/Stepper/examples/stepper_oneStepAtATime/stepper_oneStepAtATime.ino b/libraries/Stepper/examples/stepper_oneStepAtATime/stepper_oneStepAtATime.ino new file mode 100644 index 0000000..36d3299 --- /dev/null +++ b/libraries/Stepper/examples/stepper_oneStepAtATime/stepper_oneStepAtATime.ino @@ -0,0 +1,44 @@ + +/* + Stepper Motor Control - one step at a time + + This program drives a unipolar or bipolar stepper motor. + The motor is attached to digital pins 8 - 11 of the Arduino. + + The motor will step one step at a time, very slowly. You can use this to + test that you've got the four wires of your stepper wired to the correct + pins. If wired correctly, all steps should be in the same direction. + + Use this also to count the number of steps per revolution of your motor, + if you don't know it. Then plug that number into the oneRevolution + example to see if you got it right. + + Created 30 Nov. 2009 + by Tom Igoe + + */ + +#include <Stepper.h> + +const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution + // for your motor + +// initialize the stepper library on pins 8 through 11: +Stepper myStepper(stepsPerRevolution, 8,9,10,11); + +int stepCount = 0; // number of steps the motor has taken + +void setup() { + // initialize the serial port: + Serial.begin(9600); +} + +void loop() { + // step one step: + myStepper.step(1); + Serial.print("steps:" ); + Serial.println(stepCount); + stepCount++; + delay(500); +} + diff --git a/libraries/Stepper/examples/stepper_speedControl/stepper_speedControl.ino b/libraries/Stepper/examples/stepper_speedControl/stepper_speedControl.ino new file mode 100644 index 0000000..dbd0f7f --- /dev/null +++ b/libraries/Stepper/examples/stepper_speedControl/stepper_speedControl.ino @@ -0,0 +1,49 @@ + +/* + Stepper Motor Control - speed control + + This program drives a unipolar or bipolar stepper motor. + The motor is attached to digital pins 8 - 11 of the Arduino. + A potentiometer is connected to analog input 0. + + The motor will rotate in a clockwise direction. The higher the potentiometer value, + the faster the motor speed. Because setSpeed() sets the delay between steps, + you may notice the motor is less responsive to changes in the sensor value at + low speeds. + + Created 30 Nov. 2009 + Modified 28 Oct 2010 + by Tom Igoe + + */ + +#include <Stepper.h> + +const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution +// for your motor + + +// initialize the stepper library on pins 8 through 11: +Stepper myStepper(stepsPerRevolution, 8,9,10,11); + +int stepCount = 0; // number of steps the motor has taken + +void setup() { + // initialize the serial port: + Serial.begin(9600); +} + +void loop() { + // read the sensor value: + int sensorReading = analogRead(A0); + // map it to a range from 0 to 100: + int motorSpeed = map(sensorReading, 0, 1023, 0, 100); + // set the motor speed: + if (motorSpeed > 0) { + myStepper.setSpeed(motorSpeed); + // step 1/100 of a revolution: + myStepper.step(stepsPerRevolution/100); + } +} + + diff --git a/libraries/Stepper/keywords.txt b/libraries/Stepper/keywords.txt new file mode 100644 index 0000000..19a0fad --- /dev/null +++ b/libraries/Stepper/keywords.txt @@ -0,0 +1,28 @@ +####################################### +# Syntax Coloring Map For Test +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +Stepper KEYWORD1 + +####################################### +# Methods and Functions (KEYWORD2) +####################################### + +step KEYWORD2 +setSpeed KEYWORD2 +version KEYWORD2 + +###################################### +# Instances (KEYWORD2) +####################################### +direction KEYWORD2 +speed KEYWORD2 + + +####################################### +# Constants (LITERAL1) +####################################### diff --git a/libraries/Wire/Wire.cpp b/libraries/Wire/Wire.cpp new file mode 100755 index 0000000..d83f478 --- /dev/null +++ b/libraries/Wire/Wire.cpp @@ -0,0 +1,265 @@ +/* + TwoWire.cpp - TWI/I2C library for Wiring & Arduino + Copyright (c) 2006 Nicholas Zambetti. All right reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +extern "C" { + #include <stdlib.h> + #include <string.h> + #include <inttypes.h> + #include "twi.h" +} + +#include "Wire.h" + +// Initialize Class Variables ////////////////////////////////////////////////// + +uint8_t TwoWire::rxBuffer[BUFFER_LENGTH]; +uint8_t TwoWire::rxBufferIndex = 0; +uint8_t TwoWire::rxBufferLength = 0; + +uint8_t TwoWire::txAddress = 0; +uint8_t TwoWire::txBuffer[BUFFER_LENGTH]; +uint8_t TwoWire::txBufferIndex = 0; +uint8_t TwoWire::txBufferLength = 0; + +uint8_t TwoWire::transmitting = 0; +void (*TwoWire::user_onRequest)(void); +void (*TwoWire::user_onReceive)(int); + +// Constructors //////////////////////////////////////////////////////////////// + +TwoWire::TwoWire() +{ +} + +// Public Methods ////////////////////////////////////////////////////////////// + +void TwoWire::begin(void) +{ + rxBufferIndex = 0; + rxBufferLength = 0; + + txBufferIndex = 0; + txBufferLength = 0; + + twi_init(); +} + +void TwoWire::begin(uint8_t address) +{ + twi_setAddress(address); + twi_attachSlaveTxEvent(onRequestService); + twi_attachSlaveRxEvent(onReceiveService); + begin(); +} + +void TwoWire::begin(int address) +{ + begin((uint8_t)address); +} + +uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity) +{ + // clamp to buffer length + if(quantity > BUFFER_LENGTH){ + quantity = BUFFER_LENGTH; + } + // perform blocking read into buffer + uint8_t read = twi_readFrom(address, rxBuffer, quantity); + // set rx buffer iterator vars + rxBufferIndex = 0; + rxBufferLength = read; + + return read; +} + +uint8_t TwoWire::requestFrom(int address, int quantity) +{ + return requestFrom((uint8_t)address, (uint8_t)quantity); +} + +void TwoWire::beginTransmission(uint8_t address) +{ + // indicate that we are transmitting + transmitting = 1; + // set address of targeted slave + txAddress = address; + // reset tx buffer iterator vars + txBufferIndex = 0; + txBufferLength = 0; +} + +void TwoWire::beginTransmission(int address) +{ + beginTransmission((uint8_t)address); +} + +uint8_t TwoWire::endTransmission(void) +{ + // transmit buffer (blocking) + int8_t ret = twi_writeTo(txAddress, txBuffer, txBufferLength, 1); + // reset tx buffer iterator vars + txBufferIndex = 0; + txBufferLength = 0; + // indicate that we are done transmitting + transmitting = 0; + return ret; +} + +// must be called in: +// slave tx event callback +// or after beginTransmission(address) +size_t TwoWire::write(uint8_t data) +{ + if(transmitting){ + // in master transmitter mode + // don't bother if buffer is full + if(txBufferLength >= BUFFER_LENGTH){ + setWriteError(); + return 0; + } + // put byte in tx buffer + txBuffer[txBufferIndex] = data; + ++txBufferIndex; + // update amount in buffer + txBufferLength = txBufferIndex; + }else{ + // in slave send mode + // reply to master + twi_transmit(&data, 1); + } + return 1; +} + +// must be called in: +// slave tx event callback +// or after beginTransmission(address) +size_t TwoWire::write(const uint8_t *data, size_t quantity) +{ + if(transmitting){ + // in master transmitter mode + for(size_t i = 0; i < quantity; ++i){ + write(data[i]); + } + }else{ + // in slave send mode + // reply to master + twi_transmit(data, quantity); + } + return quantity; +} + +// must be called in: +// slave rx event callback +// or after requestFrom(address, numBytes) +int TwoWire::available(void) +{ + return rxBufferLength - rxBufferIndex; +} + +// must be called in: +// slave rx event callback +// or after requestFrom(address, numBytes) +int TwoWire::read(void) +{ + int value = -1; + + // get each successive byte on each call + if(rxBufferIndex < rxBufferLength){ + value = rxBuffer[rxBufferIndex]; + ++rxBufferIndex; + } + + return value; +} + +// must be called in: +// slave rx event callback +// or after requestFrom(address, numBytes) +int TwoWire::peek(void) +{ + int value = -1; + + if(rxBufferIndex < rxBufferLength){ + value = rxBuffer[rxBufferIndex]; + } + + return value; +} + +void TwoWire::flush(void) +{ + // XXX: to be implemented. +} + +// behind the scenes function that is called when data is received +void TwoWire::onReceiveService(uint8_t* inBytes, int numBytes) +{ + // don't bother if user hasn't registered a callback + if(!user_onReceive){ + return; + } + // don't bother if rx buffer is in use by a master requestFrom() op + // i know this drops data, but it allows for slight stupidity + // meaning, they may not have read all the master requestFrom() data yet + if(rxBufferIndex < rxBufferLength){ + return; + } + // copy twi rx buffer into local read buffer + // this enables new reads to happen in parallel + for(uint8_t i = 0; i < numBytes; ++i){ + rxBuffer[i] = inBytes[i]; + } + // set rx iterator vars + rxBufferIndex = 0; + rxBufferLength = numBytes; + // alert user program + user_onReceive(numBytes); +} + +// behind the scenes function that is called when data is requested +void TwoWire::onRequestService(void) +{ + // don't bother if user hasn't registered a callback + if(!user_onRequest){ + return; + } + // reset tx buffer iterator vars + // !!! this will kill any pending pre-master sendTo() activity + txBufferIndex = 0; + txBufferLength = 0; + // alert user program + user_onRequest(); +} + +// sets function called on slave write +void TwoWire::onReceive( void (*function)(int) ) +{ + user_onReceive = function; +} + +// sets function called on slave read +void TwoWire::onRequest( void (*function)(void) ) +{ + user_onRequest = function; +} + +// Preinstantiate Objects ////////////////////////////////////////////////////// + +TwoWire Wire = TwoWire(); + diff --git a/libraries/Wire/Wire.h b/libraries/Wire/Wire.h new file mode 100755 index 0000000..9ea4afd --- /dev/null +++ b/libraries/Wire/Wire.h @@ -0,0 +1,74 @@ +/* + TwoWire.h - TWI/I2C library for Arduino & Wiring + Copyright (c) 2006 Nicholas Zambetti. All right reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#ifndef TwoWire_h +#define TwoWire_h + +#include <inttypes.h> +#include "Stream.h" + +#define BUFFER_LENGTH 32 + +class TwoWire : public Stream +{ + private: + static uint8_t rxBuffer[]; + static uint8_t rxBufferIndex; + static uint8_t rxBufferLength; + + static uint8_t txAddress; + static uint8_t txBuffer[]; + static uint8_t txBufferIndex; + static uint8_t txBufferLength; + + static uint8_t transmitting; + static void (*user_onRequest)(void); + static void (*user_onReceive)(int); + static void onRequestService(void); + static void onReceiveService(uint8_t*, int); + public: + TwoWire(); + void begin(); + void begin(uint8_t); + void begin(int); + void beginTransmission(uint8_t); + void beginTransmission(int); + uint8_t endTransmission(void); + uint8_t requestFrom(uint8_t, uint8_t); + uint8_t requestFrom(int, int); + virtual size_t write(uint8_t); + virtual size_t write(const uint8_t *, size_t); + virtual int available(void); + virtual int read(void); + virtual int peek(void); + virtual void flush(void); + void onReceive( void (*)(int) ); + void onRequest( void (*)(void) ); + + inline size_t write(unsigned long n) { return write((uint8_t)n); } + inline size_t write(long n) { return write((uint8_t)n); } + inline size_t write(unsigned int n) { return write((uint8_t)n); } + inline size_t write(int n) { return write((uint8_t)n); } + using Print::write; +}; + +extern TwoWire Wire; + +#endif + diff --git a/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.ino b/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.ino new file mode 100755 index 0000000..9c41c18 --- /dev/null +++ b/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.ino @@ -0,0 +1,87 @@ +// I2C SRF10 or SRF08 Devantech Ultrasonic Ranger Finder +// by Nicholas Zambetti <http://www.zambetti.com> +// and James Tichenor <http://www.jamestichenor.net> + +// Demonstrates use of the Wire library reading data from the +// Devantech Utrasonic Rangers SFR08 and SFR10 + +// Created 29 April 2006 + +// This example code is in the public domain. + + +#include <Wire.h> + +void setup() +{ + Wire.begin(); // join i2c bus (address optional for master) + Serial.begin(9600); // start serial communication at 9600bps +} + +int reading = 0; + +void loop() +{ + // step 1: instruct sensor to read echoes + Wire.beginTransmission(112); // transmit to device #112 (0x70) + // the address specified in the datasheet is 224 (0xE0) + // but i2c adressing uses the high 7 bits so it's 112 + Wire.write(byte(0x00)); // sets register pointer to the command register (0x00) + Wire.write(byte(0x50)); // command sensor to measure in "inches" (0x50) + // use 0x51 for centimeters + // use 0x52 for ping microseconds + Wire.endTransmission(); // stop transmitting + + // step 2: wait for readings to happen + delay(70); // datasheet suggests at least 65 milliseconds + + // step 3: instruct sensor to return a particular echo reading + Wire.beginTransmission(112); // transmit to device #112 + Wire.write(byte(0x02)); // sets register pointer to echo #1 register (0x02) + Wire.endTransmission(); // stop transmitting + + // step 4: request reading from sensor + Wire.requestFrom(112, 2); // request 2 bytes from slave device #112 + + // step 5: receive reading from sensor + if(2 <= Wire.available()) // if two bytes were received + { + reading = Wire.read(); // receive high byte (overwrites previous reading) + reading = reading << 8; // shift high byte to be high 8 bits + reading |= Wire.read(); // receive low byte as lower 8 bits + Serial.println(reading); // print the reading + } + + delay(250); // wait a bit since people have to read the output :) +} + + +/* + +// The following code changes the address of a Devantech Ultrasonic Range Finder (SRF10 or SRF08) +// usage: changeAddress(0x70, 0xE6); + +void changeAddress(byte oldAddress, byte newAddress) +{ + Wire.beginTransmission(oldAddress); + Wire.write(byte(0x00)); + Wire.write(byte(0xA0)); + Wire.endTransmission(); + + Wire.beginTransmission(oldAddress); + Wire.write(byte(0x00)); + Wire.write(byte(0xAA)); + Wire.endTransmission(); + + Wire.beginTransmission(oldAddress); + Wire.write(byte(0x00)); + Wire.write(byte(0xA5)); + Wire.endTransmission(); + + Wire.beginTransmission(oldAddress); + Wire.write(byte(0x00)); + Wire.write(newAddress); + Wire.endTransmission(); +} + +*/ diff --git a/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.ino b/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.ino new file mode 100644 index 0000000..38da1c5 --- /dev/null +++ b/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.ino @@ -0,0 +1,39 @@ +// I2C Digital Potentiometer +// by Nicholas Zambetti <http://www.zambetti.com> +// and Shawn Bonkowski <http://people.interaction-ivrea.it/s.bonkowski/> + +// Demonstrates use of the Wire library +// Controls AD5171 digital potentiometer via I2C/TWI + +// Created 31 March 2006 + +// This example code is in the public domain. + +// This example code is in the public domain. + + +#include <Wire.h> + +void setup() +{ + Wire.begin(); // join i2c bus (address optional for master) +} + +byte val = 0; + +void loop() +{ + Wire.beginTransmission(44); // transmit to device #44 (0x2c) + // device address is specified in datasheet + Wire.write(byte(0x00)); // sends instruction byte + Wire.write(val); // sends potentiometer value byte + Wire.endTransmission(); // stop transmitting + + val++; // increment value + if(val == 64) // if reached 64th position (max) + { + val = 0; // start over from lowest value + } + delay(500); +} + diff --git a/libraries/Wire/examples/master_reader/master_reader.ino b/libraries/Wire/examples/master_reader/master_reader.ino new file mode 100644 index 0000000..4124d7d --- /dev/null +++ b/libraries/Wire/examples/master_reader/master_reader.ino @@ -0,0 +1,32 @@ +// Wire Master Reader +// by Nicholas Zambetti <http://www.zambetti.com> + +// Demonstrates use of the Wire library +// Reads data from an I2C/TWI slave device +// Refer to the "Wire Slave Sender" example for use with this + +// Created 29 March 2006 + +// This example code is in the public domain. + + +#include <Wire.h> + +void setup() +{ + Wire.begin(); // join i2c bus (address optional for master) + Serial.begin(9600); // start serial for output +} + +void loop() +{ + Wire.requestFrom(2, 6); // request 6 bytes from slave device #2 + + while(Wire.available()) // slave may send less than requested + { + char c = Wire.read(); // receive a byte as character + Serial.print(c); // print the character + } + + delay(500); +} diff --git a/libraries/Wire/examples/master_writer/master_writer.ino b/libraries/Wire/examples/master_writer/master_writer.ino new file mode 100644 index 0000000..ccaa036 --- /dev/null +++ b/libraries/Wire/examples/master_writer/master_writer.ino @@ -0,0 +1,31 @@ +// Wire Master Writer +// by Nicholas Zambetti <http://www.zambetti.com> + +// Demonstrates use of the Wire library +// Writes data to an I2C/TWI slave device +// Refer to the "Wire Slave Receiver" example for use with this + +// Created 29 March 2006 + +// This example code is in the public domain. + + +#include <Wire.h> + +void setup() +{ + Wire.begin(); // join i2c bus (address optional for master) +} + +byte x = 0; + +void loop() +{ + Wire.beginTransmission(4); // transmit to device #4 + Wire.write("x is "); // sends five bytes + Wire.write(x); // sends one byte + Wire.endTransmission(); // stop transmitting + + x++; + delay(500); +} diff --git a/libraries/Wire/examples/slave_receiver/slave_receiver.ino b/libraries/Wire/examples/slave_receiver/slave_receiver.ino new file mode 100644 index 0000000..60dd4bd --- /dev/null +++ b/libraries/Wire/examples/slave_receiver/slave_receiver.ino @@ -0,0 +1,38 @@ +// Wire Slave Receiver +// by Nicholas Zambetti <http://www.zambetti.com> + +// Demonstrates use of the Wire library +// Receives data as an I2C/TWI slave device +// Refer to the "Wire Master Writer" example for use with this + +// Created 29 March 2006 + +// This example code is in the public domain. + + +#include <Wire.h> + +void setup() +{ + Wire.begin(4); // join i2c bus with address #4 + Wire.onReceive(receiveEvent); // register event + Serial.begin(9600); // start serial for output +} + +void loop() +{ + delay(100); +} + +// function that executes whenever data is received from master +// this function is registered as an event, see setup() +void receiveEvent(int howMany) +{ + while(1 < Wire.available()) // loop through all but the last + { + char c = Wire.read(); // receive byte as a character + Serial.print(c); // print the character + } + int x = Wire.read(); // receive byte as an integer + Serial.println(x); // print the integer +} diff --git a/libraries/Wire/examples/slave_sender/slave_sender.ino b/libraries/Wire/examples/slave_sender/slave_sender.ino new file mode 100644 index 0000000..d3b238a --- /dev/null +++ b/libraries/Wire/examples/slave_sender/slave_sender.ino @@ -0,0 +1,32 @@ +// Wire Slave Sender +// by Nicholas Zambetti <http://www.zambetti.com> + +// Demonstrates use of the Wire library +// Sends data as an I2C/TWI slave device +// Refer to the "Wire Master Reader" example for use with this + +// Created 29 March 2006 + +// This example code is in the public domain. + + +#include <Wire.h> + +void setup() +{ + Wire.begin(2); // join i2c bus with address #2 + Wire.onRequest(requestEvent); // register event +} + +void loop() +{ + delay(100); +} + +// function that executes whenever data is requested by master +// this function is registered as an event, see setup() +void requestEvent() +{ + Wire.write("hello "); // respond with message of 6 bytes + // as expected by master +} diff --git a/libraries/Wire/keywords.txt b/libraries/Wire/keywords.txt new file mode 100644 index 0000000..12f129b --- /dev/null +++ b/libraries/Wire/keywords.txt @@ -0,0 +1,31 @@ +####################################### +# Syntax Coloring Map For Wire +####################################### + +####################################### +# Datatypes (KEYWORD1) +####################################### + +####################################### +# Methods and Functions (KEYWORD2) +####################################### + +begin KEYWORD2 +beginTransmission KEYWORD2 +endTransmission KEYWORD2 +requestFrom KEYWORD2 +send KEYWORD2 +receive KEYWORD2 +onReceive KEYWORD2 +onRequest KEYWORD2 + +####################################### +# Instances (KEYWORD2) +####################################### + +Wire KEYWORD2 + +####################################### +# Constants (LITERAL1) +####################################### + diff --git a/libraries/Wire/utility/twi.c b/libraries/Wire/utility/twi.c new file mode 100644 index 0000000..d80114b --- /dev/null +++ b/libraries/Wire/utility/twi.c @@ -0,0 +1,470 @@ +/* + twi.c - TWI/I2C library for Wiring & Arduino + Copyright (c) 2006 Nicholas Zambetti. All right reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#include <math.h> +#include <stdlib.h> +#include <inttypes.h> +#include <avr/io.h> +#include <avr/interrupt.h> +#include <compat/twi.h> +#include "Arduino.h" // for digitalWrite + +#ifndef cbi +#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit)) +#endif + +#ifndef sbi +#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit)) +#endif + +#include "pins_arduino.h" +#include "twi.h" + +static volatile uint8_t twi_state; +static uint8_t twi_slarw; + +static void (*twi_onSlaveTransmit)(void); +static void (*twi_onSlaveReceive)(uint8_t*, int); + +static uint8_t twi_masterBuffer[TWI_BUFFER_LENGTH]; +static volatile uint8_t twi_masterBufferIndex; +static uint8_t twi_masterBufferLength; + +static uint8_t twi_txBuffer[TWI_BUFFER_LENGTH]; +static volatile uint8_t twi_txBufferIndex; +static volatile uint8_t twi_txBufferLength; + +static uint8_t twi_rxBuffer[TWI_BUFFER_LENGTH]; +static volatile uint8_t twi_rxBufferIndex; + +static volatile uint8_t twi_error; + +/* + * Function twi_init + * Desc readys twi pins and sets twi bitrate + * Input none + * Output none + */ +void twi_init(void) +{ + // initialize state + twi_state = TWI_READY; + + // activate internal pullups for twi. + digitalWrite(SDA, 1); + digitalWrite(SCL, 1); + + // initialize twi prescaler and bit rate + cbi(TWSR, TWPS0); + cbi(TWSR, TWPS1); + TWBR = ((F_CPU / TWI_FREQ) - 16) / 2; + + /* twi bit rate formula from atmega128 manual pg 204 + SCL Frequency = CPU Clock Frequency / (16 + (2 * TWBR)) + note: TWBR should be 10 or higher for master mode + It is 72 for a 16mhz Wiring board with 100kHz TWI */ + + // enable twi module, acks, and twi interrupt + TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA); +} + +/* + * Function twi_slaveInit + * Desc sets slave address and enables interrupt + * Input none + * Output none + */ +void twi_setAddress(uint8_t address) +{ + // set twi slave address (skip over TWGCE bit) + TWAR = address << 1; +} + +/* + * Function twi_readFrom + * Desc attempts to become twi bus master and read a + * series of bytes from a device on the bus + * Input address: 7bit i2c device address + * data: pointer to byte array + * length: number of bytes to read into array + * Output number of bytes read + */ +uint8_t twi_readFrom(uint8_t address, uint8_t* data, uint8_t length) +{ + uint8_t i; + + // ensure data will fit into buffer + if(TWI_BUFFER_LENGTH < length){ + return 0; + } + + // wait until twi is ready, become master receiver + while(TWI_READY != twi_state){ + continue; + } + twi_state = TWI_MRX; + // reset error state (0xFF.. no error occured) + twi_error = 0xFF; + + // initialize buffer iteration vars + twi_masterBufferIndex = 0; + twi_masterBufferLength = length-1; // This is not intuitive, read on... + // On receive, the previously configured ACK/NACK setting is transmitted in + // response to the received byte before the interrupt is signalled. + // Therefor we must actually set NACK when the _next_ to last byte is + // received, causing that NACK to be sent in response to receiving the last + // expected byte of data. + + // build sla+w, slave device address + w bit + twi_slarw = TW_READ; + twi_slarw |= address << 1; + + // send start condition + TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA); + + // wait for read operation to complete + while(TWI_MRX == twi_state){ + continue; + } + + if (twi_masterBufferIndex < length) + length = twi_masterBufferIndex; + + // copy twi buffer to data + for(i = 0; i < length; ++i){ + data[i] = twi_masterBuffer[i]; + } + + return length; +} + +/* + * Function twi_writeTo + * Desc attempts to become twi bus master and write a + * series of bytes to a device on the bus + * Input address: 7bit i2c device address + * data: pointer to byte array + * length: number of bytes in array + * wait: boolean indicating to wait for write or not + * Output 0 .. success + * 1 .. length to long for buffer + * 2 .. address send, NACK received + * 3 .. data send, NACK received + * 4 .. other twi error (lost bus arbitration, bus error, ..) + */ +uint8_t twi_writeTo(uint8_t address, uint8_t* data, uint8_t length, uint8_t wait) +{ + uint8_t i; + + // ensure data will fit into buffer + if(TWI_BUFFER_LENGTH < length){ + return 1; + } + + // wait until twi is ready, become master transmitter + while(TWI_READY != twi_state){ + continue; + } + twi_state = TWI_MTX; + // reset error state (0xFF.. no error occured) + twi_error = 0xFF; + + // initialize buffer iteration vars + twi_masterBufferIndex = 0; + twi_masterBufferLength = length; + + // copy data to twi buffer + for(i = 0; i < length; ++i){ + twi_masterBuffer[i] = data[i]; + } + + // build sla+w, slave device address + w bit + twi_slarw = TW_WRITE; + twi_slarw |= address << 1; + + // send start condition + TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA); + + // wait for write operation to complete + while(wait && (TWI_MTX == twi_state)){ + continue; + } + + if (twi_error == 0xFF) + return 0; // success + else if (twi_error == TW_MT_SLA_NACK) + return 2; // error: address send, nack received + else if (twi_error == TW_MT_DATA_NACK) + return 3; // error: data send, nack received + else + return 4; // other twi error +} + +/* + * Function twi_transmit + * Desc fills slave tx buffer with data + * must be called in slave tx event callback + * Input data: pointer to byte array + * length: number of bytes in array + * Output 1 length too long for buffer + * 2 not slave transmitter + * 0 ok + */ +uint8_t twi_transmit(const uint8_t* data, uint8_t length) +{ + uint8_t i; + + // ensure data will fit into buffer + if(TWI_BUFFER_LENGTH < length){ + return 1; + } + + // ensure we are currently a slave transmitter + if(TWI_STX != twi_state){ + return 2; + } + + // set length and copy data into tx buffer + twi_txBufferLength = length; + for(i = 0; i < length; ++i){ + twi_txBuffer[i] = data[i]; + } + + return 0; +} + +/* + * Function twi_attachSlaveRxEvent + * Desc sets function called before a slave read operation + * Input function: callback function to use + * Output none + */ +void twi_attachSlaveRxEvent( void (*function)(uint8_t*, int) ) +{ + twi_onSlaveReceive = function; +} + +/* + * Function twi_attachSlaveTxEvent + * Desc sets function called before a slave write operation + * Input function: callback function to use + * Output none + */ +void twi_attachSlaveTxEvent( void (*function)(void) ) +{ + twi_onSlaveTransmit = function; +} + +/* + * Function twi_reply + * Desc sends byte or readys receive line + * Input ack: byte indicating to ack or to nack + * Output none + */ +void twi_reply(uint8_t ack) +{ + // transmit master read ready signal, with or without ack + if(ack){ + TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA); + }else{ + TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT); + } +} + +/* + * Function twi_stop + * Desc relinquishes bus master status + * Input none + * Output none + */ +void twi_stop(void) +{ + // send stop condition + TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO); + + // wait for stop condition to be exectued on bus + // TWINT is not set after a stop condition! + while(TWCR & _BV(TWSTO)){ + continue; + } + + // update twi state + twi_state = TWI_READY; +} + +/* + * Function twi_releaseBus + * Desc releases bus control + * Input none + * Output none + */ +void twi_releaseBus(void) +{ + // release bus + TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT); + + // update twi state + twi_state = TWI_READY; +} + +SIGNAL(TWI_vect) +{ + switch(TW_STATUS){ + // All Master + case TW_START: // sent start condition + case TW_REP_START: // sent repeated start condition + // copy device address and r/w bit to output register and ack + TWDR = twi_slarw; + twi_reply(1); + break; + + // Master Transmitter + case TW_MT_SLA_ACK: // slave receiver acked address + case TW_MT_DATA_ACK: // slave receiver acked data + // if there is data to send, send it, otherwise stop + if(twi_masterBufferIndex < twi_masterBufferLength){ + // copy data to output register and ack + TWDR = twi_masterBuffer[twi_masterBufferIndex++]; + twi_reply(1); + }else{ + twi_stop(); + } + break; + case TW_MT_SLA_NACK: // address sent, nack received + twi_error = TW_MT_SLA_NACK; + twi_stop(); + break; + case TW_MT_DATA_NACK: // data sent, nack received + twi_error = TW_MT_DATA_NACK; + twi_stop(); + break; + case TW_MT_ARB_LOST: // lost bus arbitration + twi_error = TW_MT_ARB_LOST; + twi_releaseBus(); + break; + + // Master Receiver + case TW_MR_DATA_ACK: // data received, ack sent + // put byte into buffer + twi_masterBuffer[twi_masterBufferIndex++] = TWDR; + case TW_MR_SLA_ACK: // address sent, ack received + // ack if more bytes are expected, otherwise nack + if(twi_masterBufferIndex < twi_masterBufferLength){ + twi_reply(1); + }else{ + twi_reply(0); + } + break; + case TW_MR_DATA_NACK: // data received, nack sent + // put final byte into buffer + twi_masterBuffer[twi_masterBufferIndex++] = TWDR; + case TW_MR_SLA_NACK: // address sent, nack received + twi_stop(); + break; + // TW_MR_ARB_LOST handled by TW_MT_ARB_LOST case + + // Slave Receiver + case TW_SR_SLA_ACK: // addressed, returned ack + case TW_SR_GCALL_ACK: // addressed generally, returned ack + case TW_SR_ARB_LOST_SLA_ACK: // lost arbitration, returned ack + case TW_SR_ARB_LOST_GCALL_ACK: // lost arbitration, returned ack + // enter slave receiver mode + twi_state = TWI_SRX; + // indicate that rx buffer can be overwritten and ack + twi_rxBufferIndex = 0; + twi_reply(1); + break; + case TW_SR_DATA_ACK: // data received, returned ack + case TW_SR_GCALL_DATA_ACK: // data received generally, returned ack + // if there is still room in the rx buffer + if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){ + // put byte in buffer and ack + twi_rxBuffer[twi_rxBufferIndex++] = TWDR; + twi_reply(1); + }else{ + // otherwise nack + twi_reply(0); + } + break; + case TW_SR_STOP: // stop or repeated start condition received + // put a null char after data if there's room + if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){ + twi_rxBuffer[twi_rxBufferIndex] = '\0'; + } + // sends ack and stops interface for clock stretching + twi_stop(); + // callback to user defined callback + twi_onSlaveReceive(twi_rxBuffer, twi_rxBufferIndex); + // since we submit rx buffer to "wire" library, we can reset it + twi_rxBufferIndex = 0; + // ack future responses and leave slave receiver state + twi_releaseBus(); + break; + case TW_SR_DATA_NACK: // data received, returned nack + case TW_SR_GCALL_DATA_NACK: // data received generally, returned nack + // nack back at master + twi_reply(0); + break; + + // Slave Transmitter + case TW_ST_SLA_ACK: // addressed, returned ack + case TW_ST_ARB_LOST_SLA_ACK: // arbitration lost, returned ack + // enter slave transmitter mode + twi_state = TWI_STX; + // ready the tx buffer index for iteration + twi_txBufferIndex = 0; + // set tx buffer length to be zero, to verify if user changes it + twi_txBufferLength = 0; + // request for txBuffer to be filled and length to be set + // note: user must call twi_transmit(bytes, length) to do this + twi_onSlaveTransmit(); + // if they didn't change buffer & length, initialize it + if(0 == twi_txBufferLength){ + twi_txBufferLength = 1; + twi_txBuffer[0] = 0x00; + } + // transmit first byte from buffer, fall + case TW_ST_DATA_ACK: // byte sent, ack returned + // copy data to output register + TWDR = twi_txBuffer[twi_txBufferIndex++]; + // if there is more to send, ack, otherwise nack + if(twi_txBufferIndex < twi_txBufferLength){ + twi_reply(1); + }else{ + twi_reply(0); + } + break; + case TW_ST_DATA_NACK: // received nack, we are done + case TW_ST_LAST_DATA: // received ack, but we are done already! + // ack future responses + twi_reply(1); + // leave slave receiver state + twi_state = TWI_READY; + break; + + // All + case TW_NO_INFO: // no state information + break; + case TW_BUS_ERROR: // bus error, illegal stop/start + twi_error = TW_BUS_ERROR; + twi_stop(); + break; + } +} + diff --git a/libraries/Wire/utility/twi.h b/libraries/Wire/utility/twi.h new file mode 100755 index 0000000..831b928 --- /dev/null +++ b/libraries/Wire/utility/twi.h @@ -0,0 +1,53 @@ +/* + twi.h - TWI/I2C library for Wiring & Arduino + Copyright (c) 2006 Nicholas Zambetti. All right reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#ifndef twi_h +#define twi_h + + #include <inttypes.h> + + //#define ATMEGA8 + + #ifndef TWI_FREQ + #define TWI_FREQ 100000L + #endif + + #ifndef TWI_BUFFER_LENGTH + #define TWI_BUFFER_LENGTH 32 + #endif + + #define TWI_READY 0 + #define TWI_MRX 1 + #define TWI_MTX 2 + #define TWI_SRX 3 + #define TWI_STX 4 + + void twi_init(void); + void twi_setAddress(uint8_t); + uint8_t twi_readFrom(uint8_t, uint8_t*, uint8_t); + uint8_t twi_writeTo(uint8_t, uint8_t*, uint8_t, uint8_t); + uint8_t twi_transmit(const uint8_t*, uint8_t); + void twi_attachSlaveRxEvent( void (*)(uint8_t*, int) ); + void twi_attachSlaveTxEvent( void (*)(void) ); + void twi_reply(uint8_t); + void twi_stop(void); + void twi_releaseBus(void); + +#endif + |