From 8c2b5b979a75d109ae7cc306afc50d7ffe1e0366 Mon Sep 17 00:00:00 2001 From: Cristian Maglie Date: Wed, 4 Jan 2012 15:14:51 +0100 Subject: Moved libraries folder inside platform folder. Now libraries and examples are searched per board/platform --- libraries/EEPROM/EEPROM.cpp | 50 + libraries/EEPROM/EEPROM.h | 35 + .../EEPROM/examples/eeprom_clear/eeprom_clear.ino | 23 + .../EEPROM/examples/eeprom_read/eeprom_read.ino | 39 + .../EEPROM/examples/eeprom_write/eeprom_write.ino | 38 + libraries/EEPROM/keywords.txt | 18 + libraries/Ethernet/Dhcp.cpp | 359 ++++++ libraries/Ethernet/Dhcp.h | 159 +++ libraries/Ethernet/Dns.cpp | 423 +++++++ libraries/Ethernet/Dns.h | 41 + libraries/Ethernet/Ethernet.cpp | 95 ++ libraries/Ethernet/Ethernet.h | 38 + libraries/Ethernet/EthernetClient.cpp | 165 +++ libraries/Ethernet/EthernetClient.h | 37 + libraries/Ethernet/EthernetServer.cpp | 91 ++ libraries/Ethernet/EthernetServer.h | 22 + libraries/Ethernet/EthernetUdp.cpp | 183 +++ libraries/Ethernet/EthernetUdp.h | 98 ++ .../BarometricPressureWebServer.ino | 222 ++++ .../Ethernet/examples/ChatServer/ChatServer.ino | 63 + .../DhcpAddressPrinter/DhcpAddressPrinter.ino | 53 + .../examples/DhcpChatServer/DhcpChatServer.ino | 80 ++ .../examples/DnsWebClient/DnsWebClient.ino | 76 ++ .../examples/PachubeClient/PachubeClient.ino | 144 +++ .../PachubeClientString/PachubeClientString.ino | 121 ++ .../examples/TelnetClient/TelnetClient.ino | 87 ++ .../examples/TwitterClient/TwitterClient.ino | 124 ++ .../UDPSendReceiveString/UDPSendReceiveString.ino | 118 ++ .../examples/UdpNtpClient/UdpNtpClient.ino | 136 +++ .../Ethernet/examples/WebClient/WebClient.ino | 75 ++ .../Ethernet/examples/WebServer/WebServer.ino | 82 ++ libraries/Ethernet/keywords.txt | 37 + libraries/Ethernet/util.h | 13 + libraries/Ethernet/utility/socket.cpp | 400 +++++++ libraries/Ethernet/utility/socket.h | 41 + libraries/Ethernet/utility/w5100.cpp | 188 +++ libraries/Ethernet/utility/w5100.h | 400 +++++++ libraries/Firmata/Boards.h | 366 ++++++ libraries/Firmata/Firmata.cpp | 444 +++++++ libraries/Firmata/Firmata.h | 163 +++ libraries/Firmata/LICENSE.txt | 458 +++++++ libraries/Firmata/TODO.txt | 14 + .../examples/AllInputsFirmata/AllInputsFirmata.ino | 90 ++ .../examples/AnalogFirmata/AnalogFirmata.ino | 94 ++ .../Firmata/examples/EchoString/EchoString.ino | 46 + .../Firmata/examples/I2CFirmata/I2CFirmata.ino | 228 ++++ .../examples/OldStandardFirmata/LICENSE.txt | 458 +++++++ .../OldStandardFirmata/OldStandardFirmata.ino | 239 ++++ .../Firmata/examples/ServoFirmata/ServoFirmata.ino | 53 + .../SimpleAnalogFirmata/SimpleAnalogFirmata.ino | 46 + .../SimpleDigitalFirmata/SimpleDigitalFirmata.ino | 72 ++ .../Firmata/examples/StandardFirmata/LICENSE.txt | 458 +++++++ .../examples/StandardFirmata/StandardFirmata.ino | 636 ++++++++++ libraries/Firmata/keywords.txt | 62 + libraries/LiquidCrystal/LiquidCrystal.cpp | 310 +++++ libraries/LiquidCrystal/LiquidCrystal.h | 106 ++ .../examples/Autoscroll/Autoscroll.ino | 73 ++ libraries/LiquidCrystal/examples/Blink/Blink.ino | 61 + libraries/LiquidCrystal/examples/Cursor/Cursor.ino | 60 + .../examples/CustomCharacter/CustomCharacter.ino | 138 +++ .../LiquidCrystal/examples/Display/Display.ino | 60 + .../examples/HelloWorld/HelloWorld.ino | 58 + libraries/LiquidCrystal/examples/Scroll/Scroll.ino | 85 ++ .../examples/SerialDisplay/SerialDisplay.ino | 65 + .../examples/TextDirection/TextDirection.ino | 87 ++ .../LiquidCrystal/examples/setCursor/setCursor.ino | 71 ++ libraries/LiquidCrystal/keywords.txt | 37 + libraries/SD/File.cpp | 150 +++ libraries/SD/README.txt | 13 + libraries/SD/SD.cpp | 616 ++++++++++ libraries/SD/SD.h | 103 ++ libraries/SD/examples/CardInfo/CardInfo.ino | 111 ++ libraries/SD/examples/Datalogger/Datalogger.ino | 86 ++ libraries/SD/examples/DumpFile/DumpFile.ino | 64 + libraries/SD/examples/Files/Files.ino | 78 ++ libraries/SD/examples/ReadWrite/ReadWrite.ino | 79 ++ libraries/SD/examples/listfiles/listfiles.ino | 77 ++ libraries/SD/keywords.txt | 30 + libraries/SD/utility/FatStructs.h | 418 +++++++ libraries/SD/utility/Sd2Card.cpp | 644 ++++++++++ libraries/SD/utility/Sd2Card.h | 233 ++++ libraries/SD/utility/Sd2PinMap.h | 353 ++++++ libraries/SD/utility/SdFat.h | 547 +++++++++ libraries/SD/utility/SdFatUtil.h | 71 ++ libraries/SD/utility/SdFatmainpage.h | 202 ++++ libraries/SD/utility/SdFile.cpp | 1253 ++++++++++++++++++++ libraries/SD/utility/SdInfo.h | 232 ++++ libraries/SD/utility/SdVolume.cpp | 295 +++++ libraries/SPI/SPI.cpp | 61 + libraries/SPI/SPI.h | 70 ++ .../BarometricPressureSensor.ino | 143 +++ .../BarometricPressureSensor.ino | 143 +++ .../DigitalPotControl/DigitalPotControl.ino | 71 ++ libraries/SPI/keywords.txt | 36 + libraries/Servo/Servo.cpp | 337 ++++++ libraries/Servo/Servo.h | 127 ++ libraries/Servo/examples/Knob/Knob.ino | 22 + libraries/Servo/examples/Sweep/Sweep.ino | 31 + libraries/Servo/keywords.txt | 24 + libraries/SoftwareSerial/SoftwareSerial.cpp | 515 ++++++++ libraries/SoftwareSerial/SoftwareSerial.h | 112 ++ .../SoftwareSerialExample.ino | 21 + .../examples/TwoPortReceive/TwoPortReceive.ino | 78 ++ libraries/SoftwareSerial/keywords.txt | 27 + libraries/Stepper/Stepper.cpp | 220 ++++ libraries/Stepper/Stepper.h | 83 ++ libraries/Stepper/examples/MotorKnob/MotorKnob.ino | 41 + .../stepper_oneRevolution.ino | 44 + .../stepper_oneStepAtATime.ino | 44 + .../stepper_speedControl/stepper_speedControl.ino | 49 + libraries/Stepper/keywords.txt | 28 + libraries/Wire/Wire.cpp | 265 +++++ libraries/Wire/Wire.h | 74 ++ .../examples/SFRRanger_reader/SFRRanger_reader.ino | 87 ++ .../digital_potentiometer.ino | 39 + .../Wire/examples/master_reader/master_reader.ino | 32 + .../Wire/examples/master_writer/master_writer.ino | 31 + .../examples/slave_receiver/slave_receiver.ino | 38 + .../Wire/examples/slave_sender/slave_sender.ino | 32 + libraries/Wire/keywords.txt | 31 + libraries/Wire/utility/twi.c | 470 ++++++++ libraries/Wire/utility/twi.h | 53 + 122 files changed, 18646 insertions(+) create mode 100755 libraries/EEPROM/EEPROM.cpp create mode 100755 libraries/EEPROM/EEPROM.h create mode 100644 libraries/EEPROM/examples/eeprom_clear/eeprom_clear.ino create mode 100644 libraries/EEPROM/examples/eeprom_read/eeprom_read.ino create mode 100644 libraries/EEPROM/examples/eeprom_write/eeprom_write.ino create mode 100644 libraries/EEPROM/keywords.txt create mode 100755 libraries/Ethernet/Dhcp.cpp create mode 100755 libraries/Ethernet/Dhcp.h create mode 100644 libraries/Ethernet/Dns.cpp create mode 100644 libraries/Ethernet/Dns.h create mode 100644 libraries/Ethernet/Ethernet.cpp create mode 100644 libraries/Ethernet/Ethernet.h create mode 100644 libraries/Ethernet/EthernetClient.cpp create mode 100644 libraries/Ethernet/EthernetClient.h create mode 100644 libraries/Ethernet/EthernetServer.cpp create mode 100644 libraries/Ethernet/EthernetServer.h create mode 100644 libraries/Ethernet/EthernetUdp.cpp create mode 100644 libraries/Ethernet/EthernetUdp.h create mode 100644 libraries/Ethernet/examples/BarometricPressureWebServer/BarometricPressureWebServer.ino create mode 100644 libraries/Ethernet/examples/ChatServer/ChatServer.ino create mode 100644 libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino create mode 100644 libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino create mode 100644 libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino create mode 100644 libraries/Ethernet/examples/PachubeClient/PachubeClient.ino create mode 100644 libraries/Ethernet/examples/PachubeClientString/PachubeClientString.ino create mode 100644 libraries/Ethernet/examples/TelnetClient/TelnetClient.ino create mode 100644 libraries/Ethernet/examples/TwitterClient/TwitterClient.ino create mode 100644 libraries/Ethernet/examples/UDPSendReceiveString/UDPSendReceiveString.ino create mode 100644 libraries/Ethernet/examples/UdpNtpClient/UdpNtpClient.ino create mode 100644 libraries/Ethernet/examples/WebClient/WebClient.ino create mode 100644 libraries/Ethernet/examples/WebServer/WebServer.ino create mode 100644 libraries/Ethernet/keywords.txt create mode 100644 libraries/Ethernet/util.h create mode 100644 libraries/Ethernet/utility/socket.cpp create mode 100755 libraries/Ethernet/utility/socket.h create mode 100644 libraries/Ethernet/utility/w5100.cpp create mode 100755 libraries/Ethernet/utility/w5100.h create mode 100644 libraries/Firmata/Boards.h create mode 100644 libraries/Firmata/Firmata.cpp create mode 100644 libraries/Firmata/Firmata.h create mode 100644 libraries/Firmata/LICENSE.txt create mode 100644 libraries/Firmata/TODO.txt create mode 100644 libraries/Firmata/examples/AllInputsFirmata/AllInputsFirmata.ino create mode 100644 libraries/Firmata/examples/AnalogFirmata/AnalogFirmata.ino create mode 100644 libraries/Firmata/examples/EchoString/EchoString.ino create mode 100644 libraries/Firmata/examples/I2CFirmata/I2CFirmata.ino create mode 100644 libraries/Firmata/examples/OldStandardFirmata/LICENSE.txt create mode 100644 libraries/Firmata/examples/OldStandardFirmata/OldStandardFirmata.ino create mode 100644 libraries/Firmata/examples/ServoFirmata/ServoFirmata.ino create mode 100644 libraries/Firmata/examples/SimpleAnalogFirmata/SimpleAnalogFirmata.ino create mode 100644 libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino create mode 100644 libraries/Firmata/examples/StandardFirmata/LICENSE.txt create mode 100644 libraries/Firmata/examples/StandardFirmata/StandardFirmata.ino create mode 100644 libraries/Firmata/keywords.txt create mode 100644 libraries/LiquidCrystal/LiquidCrystal.cpp create mode 100755 libraries/LiquidCrystal/LiquidCrystal.h create mode 100644 libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.ino create mode 100644 libraries/LiquidCrystal/examples/Blink/Blink.ino create mode 100644 libraries/LiquidCrystal/examples/Cursor/Cursor.ino create mode 100644 libraries/LiquidCrystal/examples/CustomCharacter/CustomCharacter.ino create mode 100644 libraries/LiquidCrystal/examples/Display/Display.ino create mode 100644 libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.ino create mode 100644 libraries/LiquidCrystal/examples/Scroll/Scroll.ino create mode 100644 libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.ino create mode 100644 libraries/LiquidCrystal/examples/TextDirection/TextDirection.ino create mode 100644 libraries/LiquidCrystal/examples/setCursor/setCursor.ino create mode 100755 libraries/LiquidCrystal/keywords.txt create mode 100644 libraries/SD/File.cpp create mode 100644 libraries/SD/README.txt create mode 100644 libraries/SD/SD.cpp create mode 100644 libraries/SD/SD.h create mode 100644 libraries/SD/examples/CardInfo/CardInfo.ino create mode 100644 libraries/SD/examples/Datalogger/Datalogger.ino create mode 100644 libraries/SD/examples/DumpFile/DumpFile.ino create mode 100644 libraries/SD/examples/Files/Files.ino create mode 100644 libraries/SD/examples/ReadWrite/ReadWrite.ino create mode 100644 libraries/SD/examples/listfiles/listfiles.ino create mode 100644 libraries/SD/keywords.txt create mode 100644 libraries/SD/utility/FatStructs.h create mode 100644 libraries/SD/utility/Sd2Card.cpp create mode 100644 libraries/SD/utility/Sd2Card.h create mode 100644 libraries/SD/utility/Sd2PinMap.h create mode 100644 libraries/SD/utility/SdFat.h create mode 100644 libraries/SD/utility/SdFatUtil.h create mode 100644 libraries/SD/utility/SdFatmainpage.h create mode 100644 libraries/SD/utility/SdFile.cpp create mode 100644 libraries/SD/utility/SdInfo.h create mode 100644 libraries/SD/utility/SdVolume.cpp create mode 100644 libraries/SPI/SPI.cpp create mode 100644 libraries/SPI/SPI.h create mode 100644 libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.ino create mode 100644 libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.ino create mode 100644 libraries/SPI/examples/DigitalPotControl/DigitalPotControl.ino create mode 100644 libraries/SPI/keywords.txt create mode 100755 libraries/Servo/Servo.cpp create mode 100755 libraries/Servo/Servo.h create mode 100644 libraries/Servo/examples/Knob/Knob.ino create mode 100644 libraries/Servo/examples/Sweep/Sweep.ino create mode 100755 libraries/Servo/keywords.txt create mode 100755 libraries/SoftwareSerial/SoftwareSerial.cpp create mode 100755 libraries/SoftwareSerial/SoftwareSerial.h create mode 100644 libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino create mode 100644 libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino create mode 100755 libraries/SoftwareSerial/keywords.txt create mode 100644 libraries/Stepper/Stepper.cpp create mode 100644 libraries/Stepper/Stepper.h create mode 100644 libraries/Stepper/examples/MotorKnob/MotorKnob.ino create mode 100644 libraries/Stepper/examples/stepper_oneRevolution/stepper_oneRevolution.ino create mode 100644 libraries/Stepper/examples/stepper_oneStepAtATime/stepper_oneStepAtATime.ino create mode 100644 libraries/Stepper/examples/stepper_speedControl/stepper_speedControl.ino create mode 100644 libraries/Stepper/keywords.txt create mode 100755 libraries/Wire/Wire.cpp create mode 100755 libraries/Wire/Wire.h create mode 100755 libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.ino create mode 100644 libraries/Wire/examples/digital_potentiometer/digital_potentiometer.ino create mode 100644 libraries/Wire/examples/master_reader/master_reader.ino create mode 100644 libraries/Wire/examples/master_writer/master_writer.ino create mode 100644 libraries/Wire/examples/slave_receiver/slave_receiver.ino create mode 100644 libraries/Wire/examples/slave_sender/slave_sender.ino create mode 100644 libraries/Wire/keywords.txt create mode 100644 libraries/Wire/utility/twi.c create mode 100755 libraries/Wire/utility/twi.h (limited to 'libraries') 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 +#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 + +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 + +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 + +// 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 + +// 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 +#include +#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 +//#include +#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 + +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 +//#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 + +#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 +// the sensor communicates using SPI, so include the library: +#include + + +// 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("
"); + client.print("Pressure: " + String(pressure)); + client.print(" Pa"); + client.println("
"); + 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 +#include + +// 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 +#include + +// 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 +#include + +// 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 +#include + +// 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 +#include + +// 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 +#include + +// 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 +#include + +// 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 this is a tweet + + 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 +#include + + +// 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 , it will + // be followed by the tweet: + if ( currentLine.endsWith("")) { + // 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 // needed for Arduino versions later than 0018 +#include +#include // 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 +#include +#include + +// 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 +#include + +// 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 +#include + +// 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("
"); + } + 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 + * + * 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 +#include +#include + +#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< 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 + * + * 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 +#include + +#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 + +#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 +#include +} + +//****************************************************************************** +//* 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 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 + +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 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 +#include + +/*============================================================================== + * 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 + +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 +#include + + +#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 +#include + +/*============================================================================== + * 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 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 +#include + +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 + +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 + +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 +#include +#include + +// 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 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 -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 +#include +#include +#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 +#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 + +// 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 + +// 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 + +// 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 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 + +// 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 + +// 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 + +// 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 + +// 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 + +// 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 + +// 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 + +// 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 + +/* 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(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 + +#include +#include + +#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 + +// 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 + +// 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 + +// 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 + +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 + +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 + +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. + */ +#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 + * . + */ +#include +#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(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 < 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 + * . + */ +#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 + * . + */ +// Warning this file was generated by a program. +#ifndef Sd2PinMap_h +#define Sd2PinMap_h +#include + +//------------------------------------------------------------------------------ +/** 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 + * . + */ +#ifndef SdFat_h +#define SdFat_h +/** + * \file + * SdFile and SdVolume classes + */ +#include +#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 + * . + */ +#ifndef SdFatUtil_h +#define SdFatUtil_h +/** + * \file + * Useful utility functions. + */ +#include +#include +/** 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(__brkval) == 0) { + // if no heap use from end of bss section + free_memory = reinterpret_cast(&free_memory) + - reinterpret_cast(&__bss_end); + } else { + // use from top of stack to heap + free_memory = reinterpret_cast(&free_memory) + - reinterpret_cast(__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 + * . + */ + +/** +\mainpage Arduino SdFat Library +
Copyright © 2009 by William Greiman +
+ +\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 + Adafruit Industries + Wave Shield. + +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 + * . + */ +#include +#include +#include +//------------------------------------------------------------------------------ +// 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(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(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 + * . + */ +#ifndef SdInfo_h +#define SdInfo_h +#include +// 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 + * . + */ +#include +//------------------------------------------------------------------------------ +// 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 + * 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 + * 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 +#include +#include + +#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 + +//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 + +//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 + + +// 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 +#include + +#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 + +/* + * 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 + +#include + +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 +// This example code is in the public domain. + + +#include + +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 +#include +#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 +#include + +/****************************************************************************** +* 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 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 +// 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 + +// 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 + +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 + +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 + +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 + #include + #include + #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 +#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 +// and James Tichenor + +// 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 + +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 +// and Shawn 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 + +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 + +// 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 + +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 + +// 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 + +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 + +// 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 + +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 + +// 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 + +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 +#include +#include +#include +#include +#include +#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 + + //#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 + -- cgit v1.2.3-18-g5258