Norimasa Okamoto
W5200(WIZ820io) network interface
w5100.cpp@2:a8df39b4f3aa, 2012-04-19 (annotated)
- Committer:
- va009039
- Date:
- Thu Apr 19 11:14:43 2012 +0000
- Revision:
- 2:a8df39b4f3aa
- Parent:
- 1:803123933c5a
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| va009039 | 0:61831b843b44 | 1 | /* |
| va009039 | 0:61831b843b44 | 2 | * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st> |
| va009039 | 0:61831b843b44 | 3 | * |
| va009039 | 0:61831b843b44 | 4 | * This file is free software; you can redistribute it and/or modify |
| va009039 | 0:61831b843b44 | 5 | * it under the terms of either the GNU General Public License version 2 |
| va009039 | 0:61831b843b44 | 6 | * or the GNU Lesser General Public License version 2.1, both as |
| va009039 | 0:61831b843b44 | 7 | * published by the Free Software Foundation. |
| va009039 | 0:61831b843b44 | 8 | */ |
| va009039 | 0:61831b843b44 | 9 | |
| va009039 | 0:61831b843b44 | 10 | #include <stdio.h> |
| va009039 | 0:61831b843b44 | 11 | #include <string.h> |
| va009039 | 1:803123933c5a | 12 | #include "mbed.h" |
| va009039 | 0:61831b843b44 | 13 | #include "w5100.h" |
| va009039 | 0:61831b843b44 | 14 | #ifndef MBED |
| va009039 | 0:61831b843b44 | 15 | #include <avr/interrupt.h> |
| va009039 | 0:61831b843b44 | 16 | #endif //MBED |
| va009039 | 0:61831b843b44 | 17 | |
| va009039 | 0:61831b843b44 | 18 | // W5100 controller instance |
| va009039 | 0:61831b843b44 | 19 | W5100Class W5100; |
| va009039 | 0:61831b843b44 | 20 | |
| va009039 | 0:61831b843b44 | 21 | #define TX_RX_MAX_BUF_SIZE 2048 |
| va009039 | 0:61831b843b44 | 22 | #define TX_BUF 0x1100 |
| va009039 | 0:61831b843b44 | 23 | #define RX_BUF (TX_BUF + TX_RX_MAX_BUF_SIZE) |
| va009039 | 0:61831b843b44 | 24 | |
| va009039 | 0:61831b843b44 | 25 | #ifdef W5200 |
| va009039 | 0:61831b843b44 | 26 | #define TXBUF_BASE 0x8000 |
| va009039 | 0:61831b843b44 | 27 | #define RXBUF_BASE 0xC000 |
| va009039 | 0:61831b843b44 | 28 | #else |
| va009039 | 0:61831b843b44 | 29 | #define TXBUF_BASE 0x4000 |
| va009039 | 0:61831b843b44 | 30 | #define RXBUF_BASE 0x6000 |
| va009039 | 0:61831b843b44 | 31 | #endif |
| va009039 | 0:61831b843b44 | 32 | |
| va009039 | 0:61831b843b44 | 33 | #ifdef MBED |
| va009039 | 1:803123933c5a | 34 | |
| va009039 | 1:803123933c5a | 35 | SPI* pSPI = NULL; |
| va009039 | 1:803123933c5a | 36 | DigitalOut* pCS = NULL; |
| va009039 | 0:61831b843b44 | 37 | |
| va009039 | 1:803123933c5a | 38 | inline void delay(int n) { wait_ms(n); } |
| va009039 | 1:803123933c5a | 39 | inline static void initSS(){ pCS->write(1); } |
| va009039 | 1:803123933c5a | 40 | inline static void setSS() { pCS->write(0); } |
| va009039 | 1:803123933c5a | 41 | inline static void resetSS() { pCS->write(1); } |
| va009039 | 1:803123933c5a | 42 | |
| va009039 | 0:61831b843b44 | 43 | #endif //MBED |
| va009039 | 0:61831b843b44 | 44 | |
| va009039 | 0:61831b843b44 | 45 | void W5100Class::init(void) |
| va009039 | 0:61831b843b44 | 46 | { |
| va009039 | 1:803123933c5a | 47 | if (!pSPI) { |
| va009039 | 1:803123933c5a | 48 | pSPI = new SPI(p11, p12, p13); // mosi, miso, sclk |
| va009039 | 1:803123933c5a | 49 | } |
| va009039 | 1:803123933c5a | 50 | if (!pCS) { |
| va009039 | 1:803123933c5a | 51 | pCS = new DigitalOut(p14); |
| va009039 | 1:803123933c5a | 52 | } |
| va009039 | 0:61831b843b44 | 53 | initSS(); |
| va009039 | 0:61831b843b44 | 54 | writeMR(1<<RST); |
| va009039 | 0:61831b843b44 | 55 | |
| va009039 | 0:61831b843b44 | 56 | #ifdef W5200 |
| va009039 | 0:61831b843b44 | 57 | for (int i=0; i<MAX_SOCK_NUM; i++) { |
| va009039 | 0:61831b843b44 | 58 | write((0x4000 + i * 0x100 + 0x001F), 2); |
| va009039 | 0:61831b843b44 | 59 | write((0x4000 + i * 0x100 + 0x001E), 2); |
| va009039 | 0:61831b843b44 | 60 | } |
| va009039 | 0:61831b843b44 | 61 | #else |
| va009039 | 0:61831b843b44 | 62 | writeTMSR(0x55); |
| va009039 | 0:61831b843b44 | 63 | writeRMSR(0x55); |
| va009039 | 0:61831b843b44 | 64 | #endif |
| va009039 | 0:61831b843b44 | 65 | |
| va009039 | 0:61831b843b44 | 66 | for (int i=0; i<MAX_SOCK_NUM; i++) { |
| va009039 | 0:61831b843b44 | 67 | SBASE[i] = TXBUF_BASE + SSIZE * i; |
| va009039 | 0:61831b843b44 | 68 | RBASE[i] = RXBUF_BASE + RSIZE * i; |
| va009039 | 0:61831b843b44 | 69 | } |
| va009039 | 0:61831b843b44 | 70 | } |
| va009039 | 0:61831b843b44 | 71 | |
| va009039 | 0:61831b843b44 | 72 | uint16_t W5100Class::getTXFreeSize(SOCKET s) |
| va009039 | 0:61831b843b44 | 73 | { |
| va009039 | 0:61831b843b44 | 74 | uint16_t val=0, val1=0; |
| va009039 | 0:61831b843b44 | 75 | do { |
| va009039 | 0:61831b843b44 | 76 | val1 = readSnTX_FSR(s); |
| va009039 | 0:61831b843b44 | 77 | if (val1 != 0) |
| va009039 | 0:61831b843b44 | 78 | val = readSnTX_FSR(s); |
| va009039 | 0:61831b843b44 | 79 | } |
| va009039 | 0:61831b843b44 | 80 | while (val != val1); |
| va009039 | 0:61831b843b44 | 81 | return val; |
| va009039 | 0:61831b843b44 | 82 | } |
| va009039 | 0:61831b843b44 | 83 | |
| va009039 | 0:61831b843b44 | 84 | uint16_t W5100Class::getRXReceivedSize(SOCKET s) |
| va009039 | 0:61831b843b44 | 85 | { |
| va009039 | 0:61831b843b44 | 86 | uint16_t val=0,val1=0; |
| va009039 | 0:61831b843b44 | 87 | do { |
| va009039 | 0:61831b843b44 | 88 | val1 = readSnRX_RSR(s); |
| va009039 | 0:61831b843b44 | 89 | if (val1 != 0) |
| va009039 | 0:61831b843b44 | 90 | val = readSnRX_RSR(s); |
| va009039 | 0:61831b843b44 | 91 | } |
| va009039 | 0:61831b843b44 | 92 | while (val != val1); |
| va009039 | 0:61831b843b44 | 93 | return val; |
| va009039 | 0:61831b843b44 | 94 | } |
| va009039 | 0:61831b843b44 | 95 | |
| va009039 | 0:61831b843b44 | 96 | |
| va009039 | 0:61831b843b44 | 97 | void W5100Class::send_data_processing(SOCKET s, const uint8_t *data, uint16_t len) |
| va009039 | 0:61831b843b44 | 98 | { |
| va009039 | 0:61831b843b44 | 99 | // This is same as having no offset in a call to send_data_processing_offset |
| va009039 | 0:61831b843b44 | 100 | send_data_processing_offset(s, 0, data, len); |
| va009039 | 0:61831b843b44 | 101 | } |
| va009039 | 0:61831b843b44 | 102 | |
| va009039 | 0:61831b843b44 | 103 | void W5100Class::send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len) |
| va009039 | 0:61831b843b44 | 104 | { |
| va009039 | 0:61831b843b44 | 105 | uint16_t ptr = readSnTX_WR(s); |
| va009039 | 0:61831b843b44 | 106 | ptr += data_offset; |
| va009039 | 0:61831b843b44 | 107 | uint16_t offset = ptr & SMASK; |
| va009039 | 0:61831b843b44 | 108 | uint16_t dstAddr = offset + SBASE[s]; |
| va009039 | 0:61831b843b44 | 109 | |
| va009039 | 0:61831b843b44 | 110 | if (offset + len > SSIZE) |
| va009039 | 0:61831b843b44 | 111 | { |
| va009039 | 0:61831b843b44 | 112 | // Wrap around circular buffer |
| va009039 | 0:61831b843b44 | 113 | uint16_t size = SSIZE - offset; |
| va009039 | 0:61831b843b44 | 114 | write(dstAddr, data, size); |
| va009039 | 0:61831b843b44 | 115 | write(SBASE[s], data + size, len - size); |
| va009039 | 0:61831b843b44 | 116 | } |
| va009039 | 0:61831b843b44 | 117 | else { |
| va009039 | 0:61831b843b44 | 118 | write(dstAddr, data, len); |
| va009039 | 0:61831b843b44 | 119 | } |
| va009039 | 0:61831b843b44 | 120 | |
| va009039 | 0:61831b843b44 | 121 | ptr += len; |
| va009039 | 0:61831b843b44 | 122 | writeSnTX_WR(s, ptr); |
| va009039 | 0:61831b843b44 | 123 | } |
| va009039 | 0:61831b843b44 | 124 | |
| va009039 | 0:61831b843b44 | 125 | |
| va009039 | 0:61831b843b44 | 126 | void W5100Class::recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek) |
| va009039 | 0:61831b843b44 | 127 | { |
| va009039 | 0:61831b843b44 | 128 | uint16_t ptr; |
| va009039 | 0:61831b843b44 | 129 | ptr = readSnRX_RD(s); |
| va009039 | 0:61831b843b44 | 130 | read_data(s, (uint8_t *)ptr, data, len); |
| va009039 | 0:61831b843b44 | 131 | if (!peek) |
| va009039 | 0:61831b843b44 | 132 | { |
| va009039 | 0:61831b843b44 | 133 | ptr += len; |
| va009039 | 0:61831b843b44 | 134 | writeSnRX_RD(s, ptr); |
| va009039 | 0:61831b843b44 | 135 | } |
| va009039 | 0:61831b843b44 | 136 | } |
| va009039 | 0:61831b843b44 | 137 | |
| va009039 | 0:61831b843b44 | 138 | void W5100Class::read_data(SOCKET s, volatile uint8_t *src, volatile uint8_t *dst, uint16_t len) |
| va009039 | 0:61831b843b44 | 139 | { |
| va009039 | 0:61831b843b44 | 140 | uint16_t size; |
| va009039 | 0:61831b843b44 | 141 | uint16_t src_mask; |
| va009039 | 0:61831b843b44 | 142 | uint16_t src_ptr; |
| va009039 | 0:61831b843b44 | 143 | |
| va009039 | 0:61831b843b44 | 144 | #ifdef MBED |
| va009039 | 0:61831b843b44 | 145 | src_mask = (int)src & RMASK; |
| va009039 | 0:61831b843b44 | 146 | #else |
| va009039 | 0:61831b843b44 | 147 | src_mask = (uint16_t)src & RMASK; |
| va009039 | 0:61831b843b44 | 148 | #endif //MBED |
| va009039 | 0:61831b843b44 | 149 | src_ptr = RBASE[s] + src_mask; |
| va009039 | 0:61831b843b44 | 150 | |
| va009039 | 0:61831b843b44 | 151 | if( (src_mask + len) > RSIZE ) |
| va009039 | 0:61831b843b44 | 152 | { |
| va009039 | 0:61831b843b44 | 153 | size = RSIZE - src_mask; |
| va009039 | 0:61831b843b44 | 154 | read(src_ptr, (uint8_t *)dst, size); |
| va009039 | 0:61831b843b44 | 155 | dst += size; |
| va009039 | 0:61831b843b44 | 156 | read(RBASE[s], (uint8_t *) dst, len - size); |
| va009039 | 0:61831b843b44 | 157 | } |
| va009039 | 0:61831b843b44 | 158 | else |
| va009039 | 0:61831b843b44 | 159 | read(src_ptr, (uint8_t *) dst, len); |
| va009039 | 0:61831b843b44 | 160 | } |
| va009039 | 0:61831b843b44 | 161 | |
| va009039 | 0:61831b843b44 | 162 | |
| va009039 | 0:61831b843b44 | 163 | uint8_t W5100Class::write(uint16_t _addr, uint8_t _data) |
| va009039 | 0:61831b843b44 | 164 | { |
| va009039 | 0:61831b843b44 | 165 | setSS(); |
| va009039 | 0:61831b843b44 | 166 | |
| va009039 | 0:61831b843b44 | 167 | #ifdef W5200 |
| va009039 | 1:803123933c5a | 168 | pSPI->write(_addr >> 8); |
| va009039 | 1:803123933c5a | 169 | pSPI->write(_addr & 0xFF); |
| va009039 | 1:803123933c5a | 170 | pSPI->write(0x80); |
| va009039 | 1:803123933c5a | 171 | pSPI->write(0x01); |
| va009039 | 0:61831b843b44 | 172 | #else |
| va009039 | 1:803123933c5a | 173 | pSPI->write(0xF0); |
| va009039 | 1:803123933c5a | 174 | pSPI->write(_addr >> 8); |
| va009039 | 1:803123933c5a | 175 | pSPI->write(_addr & 0xFF); |
| va009039 | 0:61831b843b44 | 176 | #endif |
| va009039 | 1:803123933c5a | 177 | pSPI->write(_data); |
| va009039 | 0:61831b843b44 | 178 | resetSS(); |
| va009039 | 0:61831b843b44 | 179 | return 1; |
| va009039 | 0:61831b843b44 | 180 | } |
| va009039 | 0:61831b843b44 | 181 | |
| va009039 | 0:61831b843b44 | 182 | uint16_t W5100Class::write(uint16_t _addr, const uint8_t *_buf, uint16_t _len) |
| va009039 | 0:61831b843b44 | 183 | { |
| va009039 | 0:61831b843b44 | 184 | |
| va009039 | 0:61831b843b44 | 185 | #ifdef W5200 |
| va009039 | 0:61831b843b44 | 186 | setSS(); |
| va009039 | 1:803123933c5a | 187 | pSPI->write(_addr >> 8); |
| va009039 | 1:803123933c5a | 188 | pSPI->write(_addr & 0xFF); |
| va009039 | 1:803123933c5a | 189 | pSPI->write((0x80 | ((_len & 0x7F00) >> 8))); |
| va009039 | 1:803123933c5a | 190 | pSPI->write(_len & 0x00FF); |
| va009039 | 0:61831b843b44 | 191 | |
| va009039 | 0:61831b843b44 | 192 | for (uint16_t i=0; i<_len; i++) |
| va009039 | 0:61831b843b44 | 193 | { |
| va009039 | 1:803123933c5a | 194 | pSPI->write(_buf[i]); |
| va009039 | 0:61831b843b44 | 195 | |
| va009039 | 0:61831b843b44 | 196 | } |
| va009039 | 0:61831b843b44 | 197 | resetSS(); |
| va009039 | 0:61831b843b44 | 198 | #else |
| va009039 | 0:61831b843b44 | 199 | |
| va009039 | 0:61831b843b44 | 200 | for (uint16_t i=0; i<_len; i++) |
| va009039 | 0:61831b843b44 | 201 | { |
| va009039 | 0:61831b843b44 | 202 | setSS(); |
| va009039 | 1:803123933c5a | 203 | pSPI->write(0xF0); |
| va009039 | 1:803123933c5a | 204 | pSPI->write(_addr >> 8); |
| va009039 | 1:803123933c5a | 205 | pSPI->write(_addr & 0xFF); |
| va009039 | 0:61831b843b44 | 206 | _addr++; |
| va009039 | 1:803123933c5a | 207 | pSPI->write(_buf[i]); |
| va009039 | 0:61831b843b44 | 208 | resetSS(); |
| va009039 | 0:61831b843b44 | 209 | } |
| va009039 | 0:61831b843b44 | 210 | #endif |
| va009039 | 0:61831b843b44 | 211 | |
| va009039 | 0:61831b843b44 | 212 | return _len; |
| va009039 | 0:61831b843b44 | 213 | } |
| va009039 | 0:61831b843b44 | 214 | |
| va009039 | 0:61831b843b44 | 215 | uint8_t W5100Class::read(uint16_t _addr) |
| va009039 | 0:61831b843b44 | 216 | { |
| va009039 | 0:61831b843b44 | 217 | setSS(); |
| va009039 | 0:61831b843b44 | 218 | #ifdef W5200 |
| va009039 | 1:803123933c5a | 219 | pSPI->write(_addr >> 8); |
| va009039 | 1:803123933c5a | 220 | pSPI->write(_addr & 0xFF); |
| va009039 | 1:803123933c5a | 221 | pSPI->write(0x00); |
| va009039 | 1:803123933c5a | 222 | pSPI->write(0x01); |
| va009039 | 0:61831b843b44 | 223 | #else |
| va009039 | 1:803123933c5a | 224 | pSPI->write(0x0F); |
| va009039 | 1:803123933c5a | 225 | pSPI->write(_addr >> 8); |
| va009039 | 1:803123933c5a | 226 | pSPI->write(_addr & 0xFF); |
| va009039 | 0:61831b843b44 | 227 | #endif |
| va009039 | 0:61831b843b44 | 228 | |
| va009039 | 1:803123933c5a | 229 | uint8_t _data = pSPI->write(0); |
| va009039 | 0:61831b843b44 | 230 | resetSS(); |
| va009039 | 0:61831b843b44 | 231 | return _data; |
| va009039 | 0:61831b843b44 | 232 | } |
| va009039 | 0:61831b843b44 | 233 | |
| va009039 | 0:61831b843b44 | 234 | uint16_t W5100Class::read(uint16_t _addr, uint8_t *_buf, uint16_t _len) |
| va009039 | 0:61831b843b44 | 235 | { |
| va009039 | 0:61831b843b44 | 236 | #ifdef W5200 |
| va009039 | 0:61831b843b44 | 237 | setSS(); |
| va009039 | 1:803123933c5a | 238 | pSPI->write(_addr >> 8); |
| va009039 | 1:803123933c5a | 239 | pSPI->write(_addr & 0xFF); |
| va009039 | 1:803123933c5a | 240 | pSPI->write((0x00 | ((_len & 0x7F00) >> 8))); |
| va009039 | 1:803123933c5a | 241 | pSPI->write(_len & 0x00FF); |
| va009039 | 0:61831b843b44 | 242 | |
| va009039 | 0:61831b843b44 | 243 | for (uint16_t i=0; i<_len; i++) |
| va009039 | 0:61831b843b44 | 244 | { |
| va009039 | 1:803123933c5a | 245 | _buf[i] = pSPI->write(0); |
| va009039 | 0:61831b843b44 | 246 | |
| va009039 | 0:61831b843b44 | 247 | } |
| va009039 | 0:61831b843b44 | 248 | resetSS(); |
| va009039 | 0:61831b843b44 | 249 | |
| va009039 | 0:61831b843b44 | 250 | #else |
| va009039 | 0:61831b843b44 | 251 | |
| va009039 | 0:61831b843b44 | 252 | for (uint16_t i=0; i<_len; i++) |
| va009039 | 0:61831b843b44 | 253 | { |
| va009039 | 0:61831b843b44 | 254 | setSS(); |
| va009039 | 1:803123933c5a | 255 | pSPI->write(0x0F); |
| va009039 | 1:803123933c5a | 256 | pSPI->write(_addr >> 8); |
| va009039 | 1:803123933c5a | 257 | pSPI->write(_addr & 0xFF); |
| va009039 | 0:61831b843b44 | 258 | _addr++; |
| va009039 | 1:803123933c5a | 259 | _buf[i] = pSPI->write(0); |
| va009039 | 0:61831b843b44 | 260 | resetSS(); |
| va009039 | 0:61831b843b44 | 261 | } |
| va009039 | 0:61831b843b44 | 262 | #endif |
| va009039 | 0:61831b843b44 | 263 | return _len; |
| va009039 | 0:61831b843b44 | 264 | } |
| va009039 | 0:61831b843b44 | 265 | |
| va009039 | 0:61831b843b44 | 266 | void W5100Class::execCmdSn(SOCKET s, SockCMD _cmd) { |
| va009039 | 0:61831b843b44 | 267 | // Send command to socket |
| va009039 | 0:61831b843b44 | 268 | writeSnCR(s, _cmd); |
| va009039 | 0:61831b843b44 | 269 | // Wait for command to complete |
| va009039 | 0:61831b843b44 | 270 | while (readSnCR(s)) |
| va009039 | 0:61831b843b44 | 271 | ; |
| va009039 | 0:61831b843b44 | 272 | } |