[136] | 1 | /*
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| 2 | * Copyright (c) 2010 by WIZnet <support@wiznet.co.kr>
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| 3 | *
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| 4 | * This file is free software; you can redistribute it and/or modify
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| 5 | * it under the terms of either the GNU General Public License version 2
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| 6 | * or the GNU Lesser General Public License version 2.1, both as
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| 7 | * published by the Free Software Foundation.
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| 8 | *
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| 9 | * - 10 Apr. 2015
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| 10 | * Added support for Arduino Ethernet Shield 2
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| 11 | * by Arduino.org team
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| 12 | */
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| 13 |
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| 14 | #include <stdio.h>
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| 15 | #include <string.h>
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| 16 | #include "Arduino.h"
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| 17 |
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| 18 | #include "utility/w5500.h"
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| 19 | //#if defined(W5500_ETHERNET_SHIELD)
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| 20 |
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| 21 | // W5500 controller instance
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| 22 | W5500Class w5500;
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| 23 |
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| 24 | #define SPI_CS 10
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| 25 | #define slaveSelectPin 10
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| 26 |
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| 27 | void W5500Class::init(void)
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| 28 | {
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| 29 | delay(1000);
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| 30 | #if defined(ARDUINO_ARCH_AVR) || defined(ARDUINO_ARCH_SAMD)
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| 31 | initSS();
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| 32 | SPI.begin();
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| 33 | /*#elif defined(ARDUINO_ARCH_SAMD)
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| 34 | pinMode (slaveSelectPin, OUTPUT);
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| 35 | digitalWrite(slaveSelectPin, HIGH);
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| 36 | SPI.begin();
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| 37 | //SPI.setClockDivider(2);
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| 38 | //SPI.setDataMode(SPI_MODE0); */
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| 39 | #else
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| 40 | SPI.begin(SPI_CS);
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| 41 | // Set clock to 4Mhz (w5500 should support up to about 14Mhz)
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| 42 | // SPI.setClockDivider(SPI_CS, 21);
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| 43 | // SPI.setClockDivider(SPI_CS, 6); // 14 Mhz, ok
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| 44 | // SPI.setClockDivider(SPI_CS, 3); // 28 Mhz, ok
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| 45 | SPI.setClockDivider(SPI_CS, 2); // 42 Mhz, ok
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| 46 | SPI.setDataMode(SPI_CS, SPI_MODE0);
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| 47 | #endif
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| 48 | for (int i=0; i<MAX_SOCK_NUM; i++) {
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| 49 | uint8_t cntl_byte = (0x0C + (i<<5));
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| 50 | write( 0x1E, cntl_byte, 2); //0x1E - Sn_RXBUF_SIZE
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| 51 | write( 0x1F, cntl_byte, 2); //0x1F - Sn_TXBUF_SIZE
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| 52 | }
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| 53 | }
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| 54 |
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| 55 | uint16_t W5500Class::getTXFreeSize(SOCKET s)
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| 56 | {
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| 57 | uint16_t val=0, val1=0;
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| 58 | do {
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| 59 | val1 = readSnTX_FSR(s);
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| 60 | if (val1 != 0)
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| 61 | val = readSnTX_FSR(s);
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| 62 | }
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| 63 | while (val != val1);
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| 64 | return val;
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| 65 | }
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| 66 |
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| 67 | uint16_t W5500Class::getRXReceivedSize(SOCKET s)
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| 68 | {
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| 69 | uint16_t val=0,val1=0;
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| 70 | do {
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| 71 | val1 = readSnRX_RSR(s);
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| 72 | if (val1 != 0)
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| 73 | val = readSnRX_RSR(s);
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| 74 | }
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| 75 | while (val != val1);
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| 76 | return val;
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| 77 | }
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| 78 |
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| 79 | void W5500Class::send_data_processing(SOCKET s, const uint8_t *data, uint16_t len)
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| 80 | {
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| 81 | // This is same as having no offset in a call to send_data_processing_offset
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| 82 | send_data_processing_offset(s, 0, data, len);
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| 83 |
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| 84 | }
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| 85 |
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| 86 | void W5500Class::send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len)
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| 87 | {
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| 88 |
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| 89 | uint16_t ptr = readSnTX_WR(s);
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| 90 | uint8_t cntl_byte = (0x14+(s<<5));
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| 91 | ptr += data_offset;
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| 92 | write(ptr, cntl_byte, data, len);
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| 93 | ptr += len;
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| 94 | writeSnTX_WR(s, ptr);
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| 95 |
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| 96 | }
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| 97 |
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| 98 | void W5500Class::recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek)
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| 99 | {
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| 100 | uint16_t ptr;
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| 101 | ptr = readSnRX_RD(s);
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| 102 |
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| 103 | read_data(s, ptr, data, len);
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| 104 | if (!peek)
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| 105 | {
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| 106 | ptr += len;
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| 107 | writeSnRX_RD(s, ptr);
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| 108 | }
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| 109 | }
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| 110 |
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| 111 | void W5500Class::read_data(SOCKET s, volatile uint16_t src, volatile uint8_t *dst, uint16_t len)
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| 112 | {
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| 113 | uint8_t cntl_byte = (0x18+(s<<5));
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| 114 | read((uint16_t)src , cntl_byte, (uint8_t *)dst, len);
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| 115 | }
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| 116 |
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| 117 | uint8_t W5500Class::write(uint16_t _addr, uint8_t _cb, uint8_t _data)
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| 118 | {
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| 119 | #if defined(ARDUINO_ARCH_AVR)|| defined(ARDUINO_ARCH_SAMD)
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| 120 | setSS();
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| 121 | //SerialUSB.println("dentro avr");
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| 122 | SPI.transfer(_addr >> 8);
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| 123 | SPI.transfer(_addr & 0xFF);
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| 124 | SPI.transfer(_cb);
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| 125 | SPI.transfer(_data);
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| 126 | resetSS();
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| 127 | /*#elif defined(ARDUINO_ARCH_SAMD)
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| 128 | digitalWrite(slaveSelectPin, LOW);
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| 129 | //SerialUSB.println("dentro samd");
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| 130 | SPI.transfer(_addr >> 8);
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| 131 | SPI.transfer(_addr & 0xFF);
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| 132 | SPI.transfer(_cb);
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| 133 | SPI.transfer(_data);
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| 134 | digitalWrite(slaveSelectPin, HIGH);*/
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| 135 | #else
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| 136 | SPI.transfer(SPI_CS, _addr >> 8, SPI_CONTINUE);
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| 137 | SPI.transfer(SPI_CS, _addr & 0xFF, SPI_CONTINUE);
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| 138 | SPI.transfer(SPI_CS, _cb, SPI_CONTINUE);
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| 139 | SPI.transfer(SPI_CS, _data);
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| 140 | #endif
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| 141 | return 1;
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| 142 | }
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| 143 |
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| 144 | uint16_t W5500Class::write(uint16_t _addr, uint8_t _cb, const uint8_t *_buf, uint16_t _len)
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| 145 | {
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| 146 | #if defined(ARDUINO_ARCH_AVR)|| defined(ARDUINO_ARCH_SAMD)
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| 147 | setSS();
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| 148 | SPI.transfer(_addr >> 8);
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| 149 | SPI.transfer(_addr & 0xFF);
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| 150 | SPI.transfer(_cb);
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| 151 | for (uint16_t i=0; i<_len; i++){
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| 152 | SPI.transfer(_buf[i]);
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| 153 | }
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| 154 | resetSS();
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| 155 | /*#elif defined(ARDUINO_ARCH_SAMD)
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| 156 | digitalWrite(slaveSelectPin, LOW);
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| 157 | SPI.transfer(_addr >> 8);
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| 158 | SPI.transfer(_addr & 0xFF);
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| 159 | SPI.transfer(_cb);
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| 160 | for (uint16_t i=0; i<_len; i++){
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| 161 | SPI.transfer(_buf[i]);
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| 162 | }
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| 163 | digitalWrite(slaveSelectPin, HIGH);*/
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| 164 | #else
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| 165 | uint16_t i;
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| 166 | SPI.transfer(SPI_CS, _addr >> 8, SPI_CONTINUE);
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| 167 | SPI.transfer(SPI_CS, _addr & 0xFF, SPI_CONTINUE);
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| 168 | SPI.transfer(SPI_CS, _cb, SPI_CONTINUE);
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| 169 | for (i=0; i<_len-1; i++){
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| 170 | SPI.transfer(SPI_CS, _buf[i], SPI_CONTINUE);
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| 171 | }
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| 172 | SPI.transfer(SPI_CS, _buf[i]);
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| 173 |
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| 174 | #endif
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| 175 | return _len;
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| 176 | }
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| 177 |
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| 178 | uint8_t W5500Class::read(uint16_t _addr, uint8_t _cb)
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| 179 | {
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| 180 | #if defined(ARDUINO_ARCH_AVR) || defined(ARDUINO_ARCH_SAMD)
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| 181 | setSS();
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| 182 | SPI.transfer(_addr >> 8);
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| 183 | SPI.transfer(_addr & 0xFF);
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| 184 | SPI.transfer(_cb);
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| 185 | uint8_t _data = SPI.transfer(0);
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| 186 | resetSS();
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| 187 | /*#elif defined(ARDUINO_ARCH_SAMD)
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| 188 | digitalWrite(slaveSelectPin, LOW);
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| 189 | SPI.transfer(_addr >> 8);
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| 190 | SPI.transfer(_addr & 0xFF);
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| 191 | SPI.transfer(_cb);
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| 192 | uint8_t _data = SPI.transfer(0);
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| 193 | digitalWrite(slaveSelectPin, HIGH);*/
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| 194 |
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| 195 | #else
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| 196 | SPI.transfer(SPI_CS, _addr >> 8, SPI_CONTINUE);
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| 197 | SPI.transfer(SPI_CS, _addr & 0xFF, SPI_CONTINUE);
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| 198 | SPI.transfer(SPI_CS, _cb, SPI_CONTINUE);
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| 199 | uint8_t _data = SPI.transfer(SPI_CS, 0);
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| 200 | #endif
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| 201 | return _data;
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| 202 | }
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| 203 |
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| 204 | uint16_t W5500Class::read(uint16_t _addr, uint8_t _cb, uint8_t *_buf, uint16_t _len)
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| 205 | {
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| 206 | #if defined(ARDUINO_ARCH_AVR) || defined(ARDUINO_ARCH_SAMD)
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| 207 | setSS();
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| 208 | SPI.transfer(_addr >> 8);
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| 209 | SPI.transfer(_addr & 0xFF);
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| 210 | SPI.transfer(_cb);
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| 211 | for (uint16_t i=0; i<_len; i++){
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| 212 | _buf[i] = SPI.transfer(0);
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| 213 | }
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| 214 | resetSS();
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| 215 | /*#elif defined(ARDUINO_ARCH_SAMD)
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| 216 | digitalWrite(slaveSelectPin, LOW);
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| 217 | SPI.transfer(_addr >> 8);
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| 218 | SPI.transfer(_addr & 0xFF);
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| 219 | SPI.transfer(_cb);
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| 220 | for (uint16_t i=0; i<_len; i++){
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| 221 | _buf[i] = SPI.transfer(0);
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| 222 | }
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| 223 | digitalWrite(slaveSelectPin, HIGH);*/
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| 224 |
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| 225 | #else
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| 226 | uint16_t i;
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| 227 | SPI.transfer(SPI_CS, _addr >> 8, SPI_CONTINUE);
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| 228 | SPI.transfer(SPI_CS, _addr & 0xFF, SPI_CONTINUE);
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| 229 | SPI.transfer(SPI_CS, _cb, SPI_CONTINUE);
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| 230 | for (i=0; i<_len-1; i++){
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| 231 | _buf[i] = SPI.transfer(SPI_CS, 0, SPI_CONTINUE);
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| 232 | }
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| 233 | _buf[_len-1] = SPI.transfer(SPI_CS, 0);
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| 234 |
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| 235 |
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| 236 | #endif
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| 237 | return _len;
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| 238 | }
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| 239 |
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| 240 | void W5500Class::execCmdSn(SOCKET s, SockCMD _cmd) {
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| 241 | // Send command to socket
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| 242 | writeSnCR(s, _cmd);
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| 243 | // Wait for command to complete
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| 244 | while (readSnCR(s))
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| 245 | ;
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| 246 | }
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| 247 | //#endif
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