Norimasa Okamoto
DHCP Client for WIZ820io(W5200)
Dependencies: EthernetNetIf mbed
w5100.cpp@0:db4242c89949, 2012-04-10 (annotated)
- Committer:
- va009039
- Date:
- Tue Apr 10 03:38:22 2012 +0000
- Revision:
- 0:db4242c89949
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| va009039 | 0:db4242c89949 | 1 | /* |
| va009039 | 0:db4242c89949 | 2 | * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st> |
| va009039 | 0:db4242c89949 | 3 | * |
| va009039 | 0:db4242c89949 | 4 | * This file is free software; you can redistribute it and/or modify |
| va009039 | 0:db4242c89949 | 5 | * it under the terms of either the GNU General Public License version 2 |
| va009039 | 0:db4242c89949 | 6 | * or the GNU Lesser General Public License version 2.1, both as |
| va009039 | 0:db4242c89949 | 7 | * published by the Free Software Foundation. |
| va009039 | 0:db4242c89949 | 8 | */ |
| va009039 | 0:db4242c89949 | 9 | |
| va009039 | 0:db4242c89949 | 10 | #include <stdio.h> |
| va009039 | 0:db4242c89949 | 11 | #include <string.h> |
| va009039 | 0:db4242c89949 | 12 | #include "w5100.h" |
| va009039 | 0:db4242c89949 | 13 | #ifndef MBED |
| va009039 | 0:db4242c89949 | 14 | #include <avr/interrupt.h> |
| va009039 | 0:db4242c89949 | 15 | #endif //MBED |
| va009039 | 0:db4242c89949 | 16 | |
| va009039 | 0:db4242c89949 | 17 | // W5100 controller instance |
| va009039 | 0:db4242c89949 | 18 | W5100Class W5100; |
| va009039 | 0:db4242c89949 | 19 | |
| va009039 | 0:db4242c89949 | 20 | #define TX_RX_MAX_BUF_SIZE 2048 |
| va009039 | 0:db4242c89949 | 21 | #define TX_BUF 0x1100 |
| va009039 | 0:db4242c89949 | 22 | #define RX_BUF (TX_BUF + TX_RX_MAX_BUF_SIZE) |
| va009039 | 0:db4242c89949 | 23 | |
| va009039 | 0:db4242c89949 | 24 | #ifdef W5200 |
| va009039 | 0:db4242c89949 | 25 | #define TXBUF_BASE 0x8000 |
| va009039 | 0:db4242c89949 | 26 | #define RXBUF_BASE 0xC000 |
| va009039 | 0:db4242c89949 | 27 | #else |
| va009039 | 0:db4242c89949 | 28 | #define TXBUF_BASE 0x4000 |
| va009039 | 0:db4242c89949 | 29 | #define RXBUF_BASE 0x6000 |
| va009039 | 0:db4242c89949 | 30 | #endif |
| va009039 | 0:db4242c89949 | 31 | |
| va009039 | 0:db4242c89949 | 32 | #ifdef MBED |
| va009039 | 0:db4242c89949 | 33 | SPI spi(p11, p12, p13); // mosi, miso, sclk |
| va009039 | 0:db4242c89949 | 34 | DigitalOut _cs(p14); |
| va009039 | 0:db4242c89949 | 35 | DigitalOut _reset(p15); |
| va009039 | 0:db4242c89949 | 36 | inline void delay(int n) { wait_ms(n); } |
| va009039 | 0:db4242c89949 | 37 | inline static void initSS(){ _cs = 1; } |
| va009039 | 0:db4242c89949 | 38 | inline static void setSS() { _cs = 0; } |
| va009039 | 0:db4242c89949 | 39 | inline static void resetSS() { _cs = 1; } |
| va009039 | 0:db4242c89949 | 40 | |
| va009039 | 0:db4242c89949 | 41 | void W5100Class::hardware_reset() { |
| va009039 | 0:db4242c89949 | 42 | _reset = 1; |
| va009039 | 0:db4242c89949 | 43 | _reset = 0; |
| va009039 | 0:db4242c89949 | 44 | wait_us(2); |
| va009039 | 0:db4242c89949 | 45 | _reset = 1; |
| va009039 | 0:db4242c89949 | 46 | wait_ms(150); |
| va009039 | 0:db4242c89949 | 47 | } |
| va009039 | 0:db4242c89949 | 48 | #endif //MBED |
| va009039 | 0:db4242c89949 | 49 | |
| va009039 | 0:db4242c89949 | 50 | void W5100Class::init(void) |
| va009039 | 0:db4242c89949 | 51 | { |
| va009039 | 0:db4242c89949 | 52 | initSS(); |
| va009039 | 0:db4242c89949 | 53 | writeMR(1<<RST); |
| va009039 | 0:db4242c89949 | 54 | |
| va009039 | 0:db4242c89949 | 55 | #ifdef W5200 |
| va009039 | 0:db4242c89949 | 56 | for (int i=0; i<MAX_SOCK_NUM; i++) { |
| va009039 | 0:db4242c89949 | 57 | write((0x4000 + i * 0x100 + 0x001F), 2); |
| va009039 | 0:db4242c89949 | 58 | write((0x4000 + i * 0x100 + 0x001E), 2); |
| va009039 | 0:db4242c89949 | 59 | } |
| va009039 | 0:db4242c89949 | 60 | #else |
| va009039 | 0:db4242c89949 | 61 | writeTMSR(0x55); |
| va009039 | 0:db4242c89949 | 62 | writeRMSR(0x55); |
| va009039 | 0:db4242c89949 | 63 | #endif |
| va009039 | 0:db4242c89949 | 64 | |
| va009039 | 0:db4242c89949 | 65 | for (int i=0; i<MAX_SOCK_NUM; i++) { |
| va009039 | 0:db4242c89949 | 66 | SBASE[i] = TXBUF_BASE + SSIZE * i; |
| va009039 | 0:db4242c89949 | 67 | RBASE[i] = RXBUF_BASE + RSIZE * i; |
| va009039 | 0:db4242c89949 | 68 | } |
| va009039 | 0:db4242c89949 | 69 | } |
| va009039 | 0:db4242c89949 | 70 | |
| va009039 | 0:db4242c89949 | 71 | uint16_t W5100Class::getTXFreeSize(SOCKET s) |
| va009039 | 0:db4242c89949 | 72 | { |
| va009039 | 0:db4242c89949 | 73 | uint16_t val=0, val1=0; |
| va009039 | 0:db4242c89949 | 74 | do { |
| va009039 | 0:db4242c89949 | 75 | val1 = readSnTX_FSR(s); |
| va009039 | 0:db4242c89949 | 76 | if (val1 != 0) |
| va009039 | 0:db4242c89949 | 77 | val = readSnTX_FSR(s); |
| va009039 | 0:db4242c89949 | 78 | } |
| va009039 | 0:db4242c89949 | 79 | while (val != val1); |
| va009039 | 0:db4242c89949 | 80 | return val; |
| va009039 | 0:db4242c89949 | 81 | } |
| va009039 | 0:db4242c89949 | 82 | |
| va009039 | 0:db4242c89949 | 83 | uint16_t W5100Class::getRXReceivedSize(SOCKET s) |
| va009039 | 0:db4242c89949 | 84 | { |
| va009039 | 0:db4242c89949 | 85 | uint16_t val=0,val1=0; |
| va009039 | 0:db4242c89949 | 86 | do { |
| va009039 | 0:db4242c89949 | 87 | val1 = readSnRX_RSR(s); |
| va009039 | 0:db4242c89949 | 88 | if (val1 != 0) |
| va009039 | 0:db4242c89949 | 89 | val = readSnRX_RSR(s); |
| va009039 | 0:db4242c89949 | 90 | } |
| va009039 | 0:db4242c89949 | 91 | while (val != val1); |
| va009039 | 0:db4242c89949 | 92 | return val; |
| va009039 | 0:db4242c89949 | 93 | } |
| va009039 | 0:db4242c89949 | 94 | |
| va009039 | 0:db4242c89949 | 95 | |
| va009039 | 0:db4242c89949 | 96 | void W5100Class::send_data_processing(SOCKET s, const uint8_t *data, uint16_t len) |
| va009039 | 0:db4242c89949 | 97 | { |
| va009039 | 0:db4242c89949 | 98 | // This is same as having no offset in a call to send_data_processing_offset |
| va009039 | 0:db4242c89949 | 99 | send_data_processing_offset(s, 0, data, len); |
| va009039 | 0:db4242c89949 | 100 | } |
| va009039 | 0:db4242c89949 | 101 | |
| va009039 | 0:db4242c89949 | 102 | void W5100Class::send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len) |
| va009039 | 0:db4242c89949 | 103 | { |
| va009039 | 0:db4242c89949 | 104 | uint16_t ptr = readSnTX_WR(s); |
| va009039 | 0:db4242c89949 | 105 | ptr += data_offset; |
| va009039 | 0:db4242c89949 | 106 | uint16_t offset = ptr & SMASK; |
| va009039 | 0:db4242c89949 | 107 | uint16_t dstAddr = offset + SBASE[s]; |
| va009039 | 0:db4242c89949 | 108 | |
| va009039 | 0:db4242c89949 | 109 | if (offset + len > SSIZE) |
| va009039 | 0:db4242c89949 | 110 | { |
| va009039 | 0:db4242c89949 | 111 | // Wrap around circular buffer |
| va009039 | 0:db4242c89949 | 112 | uint16_t size = SSIZE - offset; |
| va009039 | 0:db4242c89949 | 113 | write(dstAddr, data, size); |
| va009039 | 0:db4242c89949 | 114 | write(SBASE[s], data + size, len - size); |
| va009039 | 0:db4242c89949 | 115 | } |
| va009039 | 0:db4242c89949 | 116 | else { |
| va009039 | 0:db4242c89949 | 117 | write(dstAddr, data, len); |
| va009039 | 0:db4242c89949 | 118 | } |
| va009039 | 0:db4242c89949 | 119 | |
| va009039 | 0:db4242c89949 | 120 | ptr += len; |
| va009039 | 0:db4242c89949 | 121 | writeSnTX_WR(s, ptr); |
| va009039 | 0:db4242c89949 | 122 | } |
| va009039 | 0:db4242c89949 | 123 | |
| va009039 | 0:db4242c89949 | 124 | |
| va009039 | 0:db4242c89949 | 125 | void W5100Class::recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek) |
| va009039 | 0:db4242c89949 | 126 | { |
| va009039 | 0:db4242c89949 | 127 | uint16_t ptr; |
| va009039 | 0:db4242c89949 | 128 | ptr = readSnRX_RD(s); |
| va009039 | 0:db4242c89949 | 129 | read_data(s, (uint8_t *)ptr, data, len); |
| va009039 | 0:db4242c89949 | 130 | if (!peek) |
| va009039 | 0:db4242c89949 | 131 | { |
| va009039 | 0:db4242c89949 | 132 | ptr += len; |
| va009039 | 0:db4242c89949 | 133 | writeSnRX_RD(s, ptr); |
| va009039 | 0:db4242c89949 | 134 | } |
| va009039 | 0:db4242c89949 | 135 | } |
| va009039 | 0:db4242c89949 | 136 | |
| va009039 | 0:db4242c89949 | 137 | void W5100Class::read_data(SOCKET s, volatile uint8_t *src, volatile uint8_t *dst, uint16_t len) |
| va009039 | 0:db4242c89949 | 138 | { |
| va009039 | 0:db4242c89949 | 139 | uint16_t size; |
| va009039 | 0:db4242c89949 | 140 | uint16_t src_mask; |
| va009039 | 0:db4242c89949 | 141 | uint16_t src_ptr; |
| va009039 | 0:db4242c89949 | 142 | |
| va009039 | 0:db4242c89949 | 143 | #ifdef MBED |
| va009039 | 0:db4242c89949 | 144 | src_mask = (int)src & RMASK; |
| va009039 | 0:db4242c89949 | 145 | #else |
| va009039 | 0:db4242c89949 | 146 | src_mask = (uint16_t)src & RMASK; |
| va009039 | 0:db4242c89949 | 147 | #endif //MBED |
| va009039 | 0:db4242c89949 | 148 | src_ptr = RBASE[s] + src_mask; |
| va009039 | 0:db4242c89949 | 149 | |
| va009039 | 0:db4242c89949 | 150 | if( (src_mask + len) > RSIZE ) |
| va009039 | 0:db4242c89949 | 151 | { |
| va009039 | 0:db4242c89949 | 152 | size = RSIZE - src_mask; |
| va009039 | 0:db4242c89949 | 153 | read(src_ptr, (uint8_t *)dst, size); |
| va009039 | 0:db4242c89949 | 154 | dst += size; |
| va009039 | 0:db4242c89949 | 155 | read(RBASE[s], (uint8_t *) dst, len - size); |
| va009039 | 0:db4242c89949 | 156 | } |
| va009039 | 0:db4242c89949 | 157 | else |
| va009039 | 0:db4242c89949 | 158 | read(src_ptr, (uint8_t *) dst, len); |
| va009039 | 0:db4242c89949 | 159 | } |
| va009039 | 0:db4242c89949 | 160 | |
| va009039 | 0:db4242c89949 | 161 | |
| va009039 | 0:db4242c89949 | 162 | uint8_t W5100Class::write(uint16_t _addr, uint8_t _data) |
| va009039 | 0:db4242c89949 | 163 | { |
| va009039 | 0:db4242c89949 | 164 | setSS(); |
| va009039 | 0:db4242c89949 | 165 | |
| va009039 | 0:db4242c89949 | 166 | #ifdef W5200 |
| va009039 | 0:db4242c89949 | 167 | spi.write(_addr >> 8); |
| va009039 | 0:db4242c89949 | 168 | spi.write(_addr & 0xFF); |
| va009039 | 0:db4242c89949 | 169 | spi.write(0x80); |
| va009039 | 0:db4242c89949 | 170 | spi.write(0x01); |
| va009039 | 0:db4242c89949 | 171 | #else |
| va009039 | 0:db4242c89949 | 172 | spi.write(0xF0); |
| va009039 | 0:db4242c89949 | 173 | spi.write(_addr >> 8); |
| va009039 | 0:db4242c89949 | 174 | spi.write(_addr & 0xFF); |
| va009039 | 0:db4242c89949 | 175 | #endif |
| va009039 | 0:db4242c89949 | 176 | spi.write(_data); |
| va009039 | 0:db4242c89949 | 177 | resetSS(); |
| va009039 | 0:db4242c89949 | 178 | return 1; |
| va009039 | 0:db4242c89949 | 179 | } |
| va009039 | 0:db4242c89949 | 180 | |
| va009039 | 0:db4242c89949 | 181 | uint16_t W5100Class::write(uint16_t _addr, const uint8_t *_buf, uint16_t _len) |
| va009039 | 0:db4242c89949 | 182 | { |
| va009039 | 0:db4242c89949 | 183 | |
| va009039 | 0:db4242c89949 | 184 | #ifdef W5200 |
| va009039 | 0:db4242c89949 | 185 | setSS(); |
| va009039 | 0:db4242c89949 | 186 | spi.write(_addr >> 8); |
| va009039 | 0:db4242c89949 | 187 | spi.write(_addr & 0xFF); |
| va009039 | 0:db4242c89949 | 188 | spi.write((0x80 | ((_len & 0x7F00) >> 8))); |
| va009039 | 0:db4242c89949 | 189 | spi.write(_len & 0x00FF); |
| va009039 | 0:db4242c89949 | 190 | |
| va009039 | 0:db4242c89949 | 191 | for (uint16_t i=0; i<_len; i++) |
| va009039 | 0:db4242c89949 | 192 | { |
| va009039 | 0:db4242c89949 | 193 | spi.write(_buf[i]); |
| va009039 | 0:db4242c89949 | 194 | |
| va009039 | 0:db4242c89949 | 195 | } |
| va009039 | 0:db4242c89949 | 196 | resetSS(); |
| va009039 | 0:db4242c89949 | 197 | #else |
| va009039 | 0:db4242c89949 | 198 | |
| va009039 | 0:db4242c89949 | 199 | for (uint16_t i=0; i<_len; i++) |
| va009039 | 0:db4242c89949 | 200 | { |
| va009039 | 0:db4242c89949 | 201 | setSS(); |
| va009039 | 0:db4242c89949 | 202 | spi.write(0xF0); |
| va009039 | 0:db4242c89949 | 203 | spi.write(_addr >> 8); |
| va009039 | 0:db4242c89949 | 204 | spi.write(_addr & 0xFF); |
| va009039 | 0:db4242c89949 | 205 | _addr++; |
| va009039 | 0:db4242c89949 | 206 | spi.write(_buf[i]); |
| va009039 | 0:db4242c89949 | 207 | resetSS(); |
| va009039 | 0:db4242c89949 | 208 | } |
| va009039 | 0:db4242c89949 | 209 | #endif |
| va009039 | 0:db4242c89949 | 210 | |
| va009039 | 0:db4242c89949 | 211 | return _len; |
| va009039 | 0:db4242c89949 | 212 | } |
| va009039 | 0:db4242c89949 | 213 | |
| va009039 | 0:db4242c89949 | 214 | uint8_t W5100Class::read(uint16_t _addr) |
| va009039 | 0:db4242c89949 | 215 | { |
| va009039 | 0:db4242c89949 | 216 | setSS(); |
| va009039 | 0:db4242c89949 | 217 | #ifdef W5200 |
| va009039 | 0:db4242c89949 | 218 | spi.write(_addr >> 8); |
| va009039 | 0:db4242c89949 | 219 | spi.write(_addr & 0xFF); |
| va009039 | 0:db4242c89949 | 220 | spi.write(0x00); |
| va009039 | 0:db4242c89949 | 221 | spi.write(0x01); |
| va009039 | 0:db4242c89949 | 222 | #else |
| va009039 | 0:db4242c89949 | 223 | spi.write(0x0F); |
| va009039 | 0:db4242c89949 | 224 | spi.write(_addr >> 8); |
| va009039 | 0:db4242c89949 | 225 | spi.write(_addr & 0xFF); |
| va009039 | 0:db4242c89949 | 226 | #endif |
| va009039 | 0:db4242c89949 | 227 | |
| va009039 | 0:db4242c89949 | 228 | uint8_t _data = spi.write(0); |
| va009039 | 0:db4242c89949 | 229 | resetSS(); |
| va009039 | 0:db4242c89949 | 230 | return _data; |
| va009039 | 0:db4242c89949 | 231 | } |
| va009039 | 0:db4242c89949 | 232 | |
| va009039 | 0:db4242c89949 | 233 | uint16_t W5100Class::read(uint16_t _addr, uint8_t *_buf, uint16_t _len) |
| va009039 | 0:db4242c89949 | 234 | { |
| va009039 | 0:db4242c89949 | 235 | #ifdef W5200 |
| va009039 | 0:db4242c89949 | 236 | setSS(); |
| va009039 | 0:db4242c89949 | 237 | spi.write(_addr >> 8); |
| va009039 | 0:db4242c89949 | 238 | spi.write(_addr & 0xFF); |
| va009039 | 0:db4242c89949 | 239 | spi.write((0x00 | ((_len & 0x7F00) >> 8))); |
| va009039 | 0:db4242c89949 | 240 | spi.write(_len & 0x00FF); |
| va009039 | 0:db4242c89949 | 241 | |
| va009039 | 0:db4242c89949 | 242 | for (uint16_t i=0; i<_len; i++) |
| va009039 | 0:db4242c89949 | 243 | { |
| va009039 | 0:db4242c89949 | 244 | _buf[i] = spi.write(0); |
| va009039 | 0:db4242c89949 | 245 | |
| va009039 | 0:db4242c89949 | 246 | } |
| va009039 | 0:db4242c89949 | 247 | resetSS(); |
| va009039 | 0:db4242c89949 | 248 | |
| va009039 | 0:db4242c89949 | 249 | #else |
| va009039 | 0:db4242c89949 | 250 | |
| va009039 | 0:db4242c89949 | 251 | for (uint16_t i=0; i<_len; i++) |
| va009039 | 0:db4242c89949 | 252 | { |
| va009039 | 0:db4242c89949 | 253 | setSS(); |
| va009039 | 0:db4242c89949 | 254 | spi.write(0x0F); |
| va009039 | 0:db4242c89949 | 255 | spi.write(_addr >> 8); |
| va009039 | 0:db4242c89949 | 256 | spi.write(_addr & 0xFF); |
| va009039 | 0:db4242c89949 | 257 | _addr++; |
| va009039 | 0:db4242c89949 | 258 | _buf[i] = spi.write(0); |
| va009039 | 0:db4242c89949 | 259 | resetSS(); |
| va009039 | 0:db4242c89949 | 260 | } |
| va009039 | 0:db4242c89949 | 261 | #endif |
| va009039 | 0:db4242c89949 | 262 | return _len; |
| va009039 | 0:db4242c89949 | 263 | } |
| va009039 | 0:db4242c89949 | 264 | |
| va009039 | 0:db4242c89949 | 265 | void W5100Class::execCmdSn(SOCKET s, SockCMD _cmd) { |
| va009039 | 0:db4242c89949 | 266 | // Send command to socket |
| va009039 | 0:db4242c89949 | 267 | writeSnCR(s, _cmd); |
| va009039 | 0:db4242c89949 | 268 | // Wait for command to complete |
| va009039 | 0:db4242c89949 | 269 | while (readSnCR(s)) |
| va009039 | 0:db4242c89949 | 270 | ; |
| va009039 | 0:db4242c89949 | 271 | } |