diff options
Diffstat (limited to 'libraries/Ethernet/utility')
| -rw-r--r-- | libraries/Ethernet/utility/socket.cpp | 401 | ||||
| -rwxr-xr-x | libraries/Ethernet/utility/socket.h | 41 | ||||
| -rw-r--r-- | libraries/Ethernet/utility/w5100.cpp | 188 | ||||
| -rwxr-xr-x | libraries/Ethernet/utility/w5100.h | 393 |
4 files changed, 1023 insertions, 0 deletions
diff --git a/libraries/Ethernet/utility/socket.cpp b/libraries/Ethernet/utility/socket.cpp new file mode 100644 index 0000000..4875845 --- /dev/null +++ b/libraries/Ethernet/utility/socket.cpp @@ -0,0 +1,401 @@ +#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) +{ + uint8_t ret; + 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. + */ +uint16_t recv(SOCKET s, uint8_t *buf, uint16_t len) +{ + // Check how much data is available + uint16_t ret = W5100.getRXReceivedSize(s); + if ( ret == 0 ) + { + // No data available. + uint8_t status = W5100.readSnSR(s); + if ( s == SnSR::LISTEN || s == SnSR::CLOSED || s == 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..37ea93f --- /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 uint16_t recv(SOCKET s, uint8_t * buf, uint16_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..aafabae --- /dev/null +++ b/libraries/Ethernet/utility/w5100.cpp @@ -0,0 +1,188 @@ +/* + * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st> + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of either the GNU General Public License version 2 + * or the GNU Lesser General Public License version 2.1, both as + * published by the Free Software Foundation. + */ + +#include <stdio.h> +#include <string.h> +#include <avr/interrupt.h> + +#include "w5100.h" + +// W5100 controller instance +W5100Class W5100; + +#define TX_RX_MAX_BUF_SIZE 2048 +#define TX_BUF 0x1100 +#define RX_BUF (TX_BUF + TX_RX_MAX_BUF_SIZE) + +#define TXBUF_BASE 0x4000 +#define RXBUF_BASE 0x6000 + +void W5100Class::init(void) +{ + delay(300); + + SPI.begin(); + initSS(); + + writeMR(1<<RST); + writeTMSR(0x55); + writeRMSR(0x55); + + for (int i=0; i<MAX_SOCK_NUM; i++) { + SBASE[i] = TXBUF_BASE + SSIZE * i; + RBASE[i] = RXBUF_BASE + RSIZE * i; + } +} + +uint16_t W5100Class::getTXFreeSize(SOCKET s) +{ + uint16_t val=0, val1=0; + do { + val1 = readSnTX_FSR(s); + if (val1 != 0) + val = readSnTX_FSR(s); + } + while (val != val1); + return val; +} + +uint16_t W5100Class::getRXReceivedSize(SOCKET s) +{ + uint16_t val=0,val1=0; + do { + val1 = readSnRX_RSR(s); + if (val1 != 0) + val = readSnRX_RSR(s); + } + while (val != val1); + return val; +} + + +void W5100Class::send_data_processing(SOCKET s, const uint8_t *data, uint16_t len) +{ + // This is same as having no offset in a call to send_data_processing_offset + send_data_processing_offset(s, 0, data, len); +} + +void W5100Class::send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len) +{ + uint16_t ptr = readSnTX_WR(s); + ptr += data_offset; + uint16_t offset = ptr & SMASK; + uint16_t dstAddr = offset + SBASE[s]; + + if (offset + len > SSIZE) + { + // Wrap around circular buffer + uint16_t size = SSIZE - offset; + write(dstAddr, data, size); + write(SBASE[s], data + size, len - size); + } + else { + write(dstAddr, data, len); + } + + ptr += len; + writeSnTX_WR(s, ptr); +} + + +void W5100Class::recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek) +{ + uint16_t ptr; + ptr = readSnRX_RD(s); + read_data(s, (uint8_t *)ptr, data, len); + if (!peek) + { + ptr += len; + writeSnRX_RD(s, ptr); + } +} + +void W5100Class::read_data(SOCKET s, volatile uint8_t *src, volatile uint8_t *dst, uint16_t len) +{ + uint16_t size; + uint16_t src_mask; + uint16_t src_ptr; + + src_mask = (uint16_t)src & RMASK; + src_ptr = RBASE[s] + src_mask; + + if( (src_mask + len) > RSIZE ) + { + size = RSIZE - src_mask; + read(src_ptr, (uint8_t *)dst, size); + dst += size; + read(RBASE[s], (uint8_t *) dst, len - size); + } + else + read(src_ptr, (uint8_t *) dst, len); +} + + +uint8_t W5100Class::write(uint16_t _addr, uint8_t _data) +{ + setSS(); + SPI.transfer(0xF0); + SPI.transfer(_addr >> 8); + SPI.transfer(_addr & 0xFF); + SPI.transfer(_data); + resetSS(); + return 1; +} + +uint16_t W5100Class::write(uint16_t _addr, const uint8_t *_buf, uint16_t _len) +{ + for (int 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 (int 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..9872c7c --- /dev/null +++ b/libraries/Ethernet/utility/w5100.h @@ -0,0 +1,393 @@ +/* + * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st> + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of either the GNU General Public License version 2 + * or the GNU Lesser General Public License version 2.1, both as + * published by the Free Software Foundation. + */ + +#ifndef W5100_H_INCLUDED +#define W5100_H_INCLUDED + +#include <avr/pgmspace.h> +#include <SPI.h> + +#define MAX_SOCK_NUM 4 + +typedef uint8_t SOCKET; + +#define IDM_OR 0x8000 +#define IDM_AR0 0x8001 +#define IDM_AR1 0x8002 +#define IDM_DR 0x8003 +/* +class MR { +public: + static const uint8_t RST = 0x80; + static const uint8_t PB = 0x10; + static const uint8_t PPPOE = 0x08; + static const uint8_t LB = 0x04; + static const uint8_t AI = 0x02; + static const uint8_t IND = 0x01; +}; +*/ +/* +class IR { +public: + static const uint8_t CONFLICT = 0x80; + static const uint8_t UNREACH = 0x40; + static const uint8_t PPPoE = 0x20; + static const uint8_t SOCK0 = 0x01; + static const uint8_t SOCK1 = 0x02; + static const uint8_t SOCK2 = 0x04; + static const uint8_t SOCK3 = 0x08; + static inline uint8_t SOCK(SOCKET ch) { return (0x01 << ch); }; +}; +*/ + +class SnMR { +public: + static const uint8_t CLOSE = 0x00; + static const uint8_t TCP = 0x01; + static const uint8_t UDP = 0x02; + static const uint8_t IPRAW = 0x03; + static const uint8_t MACRAW = 0x04; + static const uint8_t PPPOE = 0x05; + static const uint8_t ND = 0x20; + static const uint8_t MULTI = 0x80; +}; + +enum SockCMD { + Sock_OPEN = 0x01, + Sock_LISTEN = 0x02, + Sock_CONNECT = 0x04, + Sock_DISCON = 0x08, + Sock_CLOSE = 0x10, + Sock_SEND = 0x20, + Sock_SEND_MAC = 0x21, + Sock_SEND_KEEP = 0x22, + Sock_RECV = 0x40 +}; + +/*class SnCmd { +public: + static const uint8_t OPEN = 0x01; + static const uint8_t LISTEN = 0x02; + static const uint8_t CONNECT = 0x04; + static const uint8_t DISCON = 0x08; + static const uint8_t CLOSE = 0x10; + static const uint8_t SEND = 0x20; + static const uint8_t SEND_MAC = 0x21; + static const uint8_t SEND_KEEP = 0x22; + static const uint8_t RECV = 0x40; +}; +*/ + +class SnIR { +public: + static const uint8_t SEND_OK = 0x10; + static const uint8_t TIMEOUT = 0x08; + static const uint8_t RECV = 0x04; + static const uint8_t DISCON = 0x02; + static const uint8_t CON = 0x01; +}; + +class SnSR { +public: + static const uint8_t CLOSED = 0x00; + static const uint8_t INIT = 0x13; + static const uint8_t LISTEN = 0x14; + static const uint8_t SYNSENT = 0x15; + static const uint8_t SYNRECV = 0x16; + static const uint8_t ESTABLISHED = 0x17; + static const uint8_t FIN_WAIT = 0x18; + static const uint8_t CLOSING = 0x1A; + static const uint8_t TIME_WAIT = 0x1B; + static const uint8_t CLOSE_WAIT = 0x1C; + static const uint8_t LAST_ACK = 0x1D; + static const uint8_t UDP = 0x22; + static const uint8_t IPRAW = 0x32; + static const uint8_t MACRAW = 0x42; + static const uint8_t PPPOE = 0x5F; +}; + +class IPPROTO { +public: + static const uint8_t IP = 0; + static const uint8_t ICMP = 1; + static const uint8_t IGMP = 2; + static const uint8_t GGP = 3; + static const uint8_t TCP = 6; + static const uint8_t PUP = 12; + static const uint8_t UDP = 17; + static const uint8_t IDP = 22; + static const uint8_t ND = 77; + static const uint8_t RAW = 255; +}; + +class W5100Class { + +public: + void init(); + + /** + * @brief This function is being used for copy the data form Receive buffer of the chip to application buffer. + * + * It calculate the actual physical address where one has to read + * the data from Receive buffer. Here also take care of the condition while it exceed + * the Rx memory uper-bound of socket. + */ + void read_data(SOCKET s, volatile uint8_t * src, volatile uint8_t * dst, uint16_t len); + + /** + * @brief This function is being called by send() and sendto() function also. + * + * This function read the Tx write pointer register and after copy the data in buffer update the Tx write pointer + * register. User should read upper byte first and lower byte later to get proper value. + */ + void send_data_processing(SOCKET s, const uint8_t *data, uint16_t len); + /** + * @brief A copy of send_data_processing that uses the provided ptr for the + * write offset. Only needed for the "streaming" UDP API, where + * a single UDP packet is built up over a number of calls to + * send_data_processing_ptr, because TX_WR doesn't seem to get updated + * correctly in those scenarios + * @param ptr value to use in place of TX_WR. If 0, then the value is read + * in from TX_WR + * @return New value for ptr, to be used in the next call + */ +// FIXME Update documentation + void send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len); + + /** + * @brief This function is being called by recv() also. + * + * This function read the Rx read pointer register + * and after copy the data from receive buffer update the Rx write pointer register. + * User should read upper byte first and lower byte later to get proper value. + */ + void recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek = 0); + + inline void setGatewayIp(uint8_t *_addr); + inline void getGatewayIp(uint8_t *_addr); + + inline void setSubnetMask(uint8_t *_addr); + inline void getSubnetMask(uint8_t *_addr); + + inline void setMACAddress(uint8_t * addr); + inline void getMACAddress(uint8_t * addr); + + inline void setIPAddress(uint8_t * addr); + inline void getIPAddress(uint8_t * addr); + + inline void setRetransmissionTime(uint16_t timeout); + inline void setRetransmissionCount(uint8_t _retry); + + void execCmdSn(SOCKET s, SockCMD _cmd); + + uint16_t getTXFreeSize(SOCKET s); + uint16_t getRXReceivedSize(SOCKET s); + + + // W5100 Registers + // --------------- +private: + static uint8_t write(uint16_t _addr, uint8_t _data); + static uint16_t write(uint16_t addr, const uint8_t *buf, uint16_t len); + static uint8_t read(uint16_t addr); + static uint16_t read(uint16_t addr, uint8_t *buf, uint16_t len); + +#define __GP_REGISTER8(name, address) \ + static inline void write##name(uint8_t _data) { \ + write(address, _data); \ + } \ + static inline uint8_t read##name() { \ + return read(address); \ + } +#define __GP_REGISTER16(name, address) \ + static void write##name(uint16_t _data) { \ + write(address, _data >> 8); \ + write(address+1, _data & 0xFF); \ + } \ + static uint16_t read##name() { \ + uint16_t res = read(address); \ + res = (res << 8) + read(address + 1); \ + return res; \ + } +#define __GP_REGISTER_N(name, address, size) \ + static uint16_t write##name(uint8_t *_buff) { \ + return write(address, _buff, size); \ + } \ + static uint16_t read##name(uint8_t *_buff) { \ + return read(address, _buff, size); \ + } + +public: + __GP_REGISTER8 (MR, 0x0000); // Mode + __GP_REGISTER_N(GAR, 0x0001, 4); // Gateway IP address + __GP_REGISTER_N(SUBR, 0x0005, 4); // Subnet mask address + __GP_REGISTER_N(SHAR, 0x0009, 6); // Source MAC address + __GP_REGISTER_N(SIPR, 0x000F, 4); // Source IP address + __GP_REGISTER8 (IR, 0x0015); // Interrupt + __GP_REGISTER8 (IMR, 0x0016); // Interrupt Mask + __GP_REGISTER16(RTR, 0x0017); // Timeout address + __GP_REGISTER8 (RCR, 0x0019); // Retry count + __GP_REGISTER8 (RMSR, 0x001A); // Receive memory size + __GP_REGISTER8 (TMSR, 0x001B); // Transmit memory size + __GP_REGISTER8 (PATR, 0x001C); // Authentication type address in PPPoE mode + __GP_REGISTER8 (PTIMER, 0x0028); // PPP LCP Request Timer + __GP_REGISTER8 (PMAGIC, 0x0029); // PPP LCP Magic Number + __GP_REGISTER_N(UIPR, 0x002A, 4); // Unreachable IP address in UDP mode + __GP_REGISTER16(UPORT, 0x002E); // Unreachable Port address in UDP mode + +#undef __GP_REGISTER8 +#undef __GP_REGISTER16 +#undef __GP_REGISTER_N + + // W5100 Socket registers + // ---------------------- +private: + static inline uint8_t readSn(SOCKET _s, uint16_t _addr); + static inline uint8_t writeSn(SOCKET _s, uint16_t _addr, uint8_t _data); + static inline uint16_t readSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t len); + static inline uint16_t writeSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t len); + + static const uint16_t CH_BASE = 0x0400; + static const uint16_t CH_SIZE = 0x0100; + +#define __SOCKET_REGISTER8(name, address) \ + static inline void write##name(SOCKET _s, uint8_t _data) { \ + writeSn(_s, address, _data); \ + } \ + static inline uint8_t read##name(SOCKET _s) { \ + return readSn(_s, address); \ + } +#define __SOCKET_REGISTER16(name, address) \ + static void write##name(SOCKET _s, uint16_t _data) { \ + writeSn(_s, address, _data >> 8); \ + writeSn(_s, address+1, _data & 0xFF); \ + } \ + static uint16_t read##name(SOCKET _s) { \ + uint16_t res = readSn(_s, address); \ + res = (res << 8) + readSn(_s, address + 1); \ + 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); }; +#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 |