wiznet.h
Dependencies: mbed
Fork of WIZnet_Library by
W5500.cpp
00001 /* Copyright (C) 2012 mbed.org, MIT License 00002 * 00003 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 00004 * and associated documentation files (the "Software"), to deal in the Software without restriction, 00005 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 00006 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 00007 * furnished to do so, subject to the following conditions: 00008 * 00009 * The above copyright notice and this permission notice shall be included in all copies or 00010 * substantial portions of the Software. 00011 * 00012 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 00013 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00014 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 00015 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00016 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00017 */ 00018 00019 #include "mbed.h" 00020 #include "mbed_debug.h" 00021 #include "wiznet.h" 00022 #include "DNSClient.h" 00023 00024 #ifdef USE_W5500 00025 //Debug is disabled by default 00026 #if 0 00027 #define DBG(...) do{debug("%p %d %s ", this,__LINE__,__PRETTY_FUNCTION__); debug(__VA_ARGS__); } while(0); 00028 //#define DBG(x, ...) debug("[W5500:DBG]"x"\r\n", ##__VA_ARGS__); 00029 #define WARN(x, ...) debug("[W5500:WARN]"x"\r\n", ##__VA_ARGS__); 00030 #define ERR(x, ...) debug("[W5500:ERR]"x"\r\n", ##__VA_ARGS__); 00031 #else 00032 #define DBG(x, ...) 00033 #define WARN(x, ...) 00034 #define ERR(x, ...) 00035 #endif 00036 00037 #if 1 00038 #define INFO(x, ...) debug("[W5500:INFO]"x"\r\n", ##__VA_ARGS__); 00039 #else 00040 #define INFO(x, ...) 00041 #endif 00042 00043 #define DBG_SPI 0 00044 00045 WIZnet_Chip* WIZnet_Chip::inst; 00046 00047 WIZnet_Chip::WIZnet_Chip(PinName mosi, PinName miso, PinName sclk, PinName _cs, PinName _reset): 00048 cs(_cs), reset_pin(_reset) 00049 { 00050 spi = new SPI(mosi, miso, sclk); 00051 cs = 1; 00052 reset_pin = 1; 00053 inst = this; 00054 } 00055 00056 WIZnet_Chip::WIZnet_Chip(SPI* spi, PinName _cs, PinName _reset): 00057 cs(_cs), reset_pin(_reset) 00058 { 00059 this->spi = spi; 00060 cs = 1; 00061 reset_pin = 1; 00062 inst = this; 00063 } 00064 00065 // Set the IP 00066 bool WIZnet_Chip::setip() 00067 { 00068 reg_wr<uint32_t>(SIPR, ip); 00069 reg_wr<uint32_t>(GAR, gateway); 00070 reg_wr<uint32_t>(SUBR, netmask); 00071 return true; 00072 } 00073 00074 bool WIZnet_Chip::setProtocol(int socket, Protocol p) 00075 { 00076 if (socket < 0) { 00077 return false; 00078 } 00079 sreg<uint8_t>(socket, Sn_MR, p); 00080 return true; 00081 } 00082 00083 bool WIZnet_Chip::connect(int socket, const char * host, int port, int timeout_ms) 00084 { 00085 if (socket < 0) { 00086 return false; 00087 } 00088 sreg<uint8_t>(socket, Sn_MR, TCP); 00089 scmd(socket, OPEN); 00090 sreg_ip(socket, Sn_DIPR, host); 00091 sreg<uint16_t>(socket, Sn_DPORT, port); 00092 sreg<uint16_t>(socket, Sn_PORT, new_port()); 00093 scmd(socket, CONNECT); 00094 Timer t; 00095 t.reset(); 00096 t.start(); 00097 while(!is_connected(socket)) { 00098 if (t.read_ms() > timeout_ms) { 00099 return false; 00100 } 00101 } 00102 return true; 00103 } 00104 00105 bool WIZnet_Chip::gethostbyname(const char* host, uint32_t* ip) 00106 { 00107 uint32_t addr = str_to_ip(host); 00108 char buf[17]; 00109 snprintf(buf, sizeof(buf), "%d.%d.%d.%d", (addr>>24)&0xff, (addr>>16)&0xff, (addr>>8)&0xff, addr&0xff); 00110 if (strcmp(buf, host) == 0) { 00111 *ip = addr; 00112 return true; 00113 } 00114 DNSClient client; 00115 if(client.lookup(host)) { 00116 *ip = client.ip; 00117 return true; 00118 } 00119 return false; 00120 } 00121 00122 bool WIZnet_Chip::disconnect() 00123 { 00124 return true; 00125 } 00126 00127 bool WIZnet_Chip::is_connected(int socket) 00128 { 00129 if (sreg<uint8_t>(socket, Sn_SR) == SOCK_ESTABLISHED) { 00130 return true; 00131 } 00132 return false; 00133 } 00134 00135 // Reset the chip & set the buffer 00136 void WIZnet_Chip::reset() 00137 { 00138 reset_pin = 1; 00139 reset_pin = 0; 00140 wait_us(500); // 500us (w5500) 00141 reset_pin = 1; 00142 wait_ms(400); // 400ms (w5500) 00143 00144 #if defined(USE_WIZ550IO_MAC) 00145 reg_rd_mac(SHAR, mac); // read the MAC address inside the module 00146 #endif 00147 00148 reg_wr_mac(SHAR, mac); 00149 00150 // set RX and TX buffer size 00151 for (int socket = 0; socket < MAX_SOCK_NUM; socket++) { 00152 sreg<uint8_t>(socket, Sn_RXBUF_SIZE, 2); 00153 sreg<uint8_t>(socket, Sn_TXBUF_SIZE, 2); 00154 } 00155 } 00156 00157 00158 bool WIZnet_Chip::close(int socket) 00159 { 00160 if (socket < 0) { 00161 return false; 00162 } 00163 // if not connected, return 00164 if (sreg<uint8_t>(socket, Sn_SR) == SOCK_CLOSED) { 00165 return true; 00166 } 00167 if (sreg<uint8_t>(socket, Sn_MR) == TCP) { 00168 scmd(socket, DISCON); 00169 } 00170 scmd(socket, CLOSE); 00171 sreg<uint8_t>(socket, Sn_IR, 0xff); 00172 return true; 00173 } 00174 00175 int WIZnet_Chip::wait_readable(int socket, int wait_time_ms, int req_size) 00176 { 00177 if (socket < 0) { 00178 return -1; 00179 } 00180 Timer t; 00181 t.reset(); 00182 t.start(); 00183 while(1) { 00184 int size = sreg<uint16_t>(socket, Sn_RX_RSR); 00185 if (size > req_size) { 00186 return size; 00187 } 00188 if (wait_time_ms != (-1) && t.read_ms() > wait_time_ms) { 00189 break; 00190 } 00191 } 00192 return -1; 00193 } 00194 00195 int WIZnet_Chip::wait_writeable(int socket, int wait_time_ms, int req_size) 00196 { 00197 if (socket < 0) { 00198 return -1; 00199 } 00200 Timer t; 00201 t.reset(); 00202 t.start(); 00203 while(1) { 00204 int size = sreg<uint16_t>(socket, Sn_TX_FSR); 00205 if (size > req_size) { 00206 return size; 00207 } 00208 if (wait_time_ms != (-1) && t.read_ms() > wait_time_ms) { 00209 break; 00210 } 00211 } 00212 return -1; 00213 } 00214 00215 int WIZnet_Chip::send(int socket, const char * str, int len) 00216 { 00217 if (socket < 0) { 00218 return -1; 00219 } 00220 uint16_t ptr = sreg<uint16_t>(socket, Sn_TX_WR); 00221 uint8_t cntl_byte = (0x14 + (socket << 5)); 00222 spi_write(ptr, cntl_byte, (uint8_t*)str, len); 00223 sreg<uint16_t>(socket, Sn_TX_WR, ptr + len); 00224 scmd(socket, SEND); 00225 00226 while ((sreg<uint8_t>(socket, Sn_IR) & INT_SEND_OK) != INT_SEND_OK) { 00227 if (sreg<uint8_t>(socket, Sn_SR) == CLOSED) { 00228 close(socket); 00229 return 0; 00230 } 00231 } 00232 sreg<uint8_t>(socket, Sn_IR, INT_SEND_OK); 00233 00234 return len; 00235 } 00236 00237 int WIZnet_Chip::recv(int socket, char* buf, int len) 00238 { 00239 if (socket < 0) { 00240 return -1; 00241 } 00242 uint16_t ptr = sreg<uint16_t>(socket, Sn_RX_RD); 00243 uint8_t cntl_byte = (0x18 + (socket << 5)); 00244 spi_read(ptr, cntl_byte, (uint8_t*)buf, len); 00245 sreg<uint16_t>(socket, Sn_RX_RD, ptr + len); 00246 scmd(socket, RECV); 00247 return len; 00248 } 00249 00250 int WIZnet_Chip::new_socket() 00251 { 00252 for(int s = 0; s < MAX_SOCK_NUM; s++) { 00253 if (sreg<uint8_t>(s, Sn_SR) == SOCK_CLOSED) { 00254 return s; 00255 } 00256 } 00257 return -1; 00258 } 00259 00260 uint16_t WIZnet_Chip::new_port() 00261 { 00262 uint16_t port = rand(); 00263 port |= 49152; 00264 return port; 00265 } 00266 00267 void WIZnet_Chip::scmd(int socket, Command cmd) 00268 { 00269 sreg<uint8_t>(socket, Sn_CR, cmd); 00270 while(sreg<uint8_t>(socket, Sn_CR)); 00271 } 00272 00273 void WIZnet_Chip::spi_write(uint16_t addr, uint8_t cb, const uint8_t *buf, uint16_t len) 00274 { 00275 cs = 0; 00276 spi->write(addr >> 8); 00277 spi->write(addr & 0xff); 00278 spi->write(cb); 00279 for(int i = 0; i < len; i++) { 00280 spi->write(buf[i]); 00281 } 00282 cs = 1; 00283 00284 #if DBG_SPI 00285 debug("[SPI]W %04x(%02x %d)", addr, cb, len); 00286 for(int i = 0; i < len; i++) { 00287 debug(" %02x", buf[i]); 00288 if (i > 16) { 00289 debug(" ..."); 00290 break; 00291 } 00292 } 00293 debug("\r\n"); 00294 #endif 00295 } 00296 00297 void WIZnet_Chip::spi_read(uint16_t addr, uint8_t cb, uint8_t *buf, uint16_t len) 00298 { 00299 cs = 0; 00300 spi->write(addr >> 8); 00301 spi->write(addr & 0xff); 00302 spi->write(cb); 00303 for(int i = 0; i < len; i++) { 00304 buf[i] = spi->write(0); 00305 } 00306 cs = 1; 00307 00308 #if DBG_SPI 00309 debug("[SPI]R %04x(%02x %d)", addr, cb, len); 00310 for(int i = 0; i < len; i++) { 00311 debug(" %02x", buf[i]); 00312 if (i > 16) { 00313 debug(" ..."); 00314 break; 00315 } 00316 } 00317 debug("\r\n"); 00318 if ((addr&0xf0ff)==0x4026 || (addr&0xf0ff)==0x4003) { 00319 wait_ms(200); 00320 } 00321 #endif 00322 } 00323 00324 uint32_t str_to_ip(const char* str) 00325 { 00326 uint32_t ip = 0; 00327 char* p = (char*)str; 00328 for(int i = 0; i < 4; i++) { 00329 ip |= atoi(p); 00330 p = strchr(p, '.'); 00331 if (p == NULL) { 00332 break; 00333 } 00334 ip <<= 8; 00335 p++; 00336 } 00337 return ip; 00338 } 00339 00340 void printfBytes(char* str, uint8_t* buf, int len) 00341 { 00342 printf("%s %d:", str, len); 00343 for(int i = 0; i < len; i++) { 00344 printf(" %02x", buf[i]); 00345 } 00346 printf("\n"); 00347 } 00348 00349 void printHex(uint8_t* buf, int len) 00350 { 00351 for(int i = 0; i < len; i++) { 00352 if ((i%16) == 0) { 00353 printf("%p", buf+i); 00354 } 00355 printf(" %02x", buf[i]); 00356 if ((i%16) == 15) { 00357 printf("\n"); 00358 } 00359 } 00360 printf("\n"); 00361 } 00362 00363 void debug_hex(uint8_t* buf, int len) 00364 { 00365 for(int i = 0; i < len; i++) { 00366 if ((i%16) == 0) { 00367 debug("%p", buf+i); 00368 } 00369 debug(" %02x", buf[i]); 00370 if ((i%16) == 15) { 00371 debug("\n"); 00372 } 00373 } 00374 debug("\n"); 00375 } 00376 00377 #endif
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