W7500x_toe.cpp

00001 /* Copyright (C) 2012 mbed.org, MIT License
00002  *
00003  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00004  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00005  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00006  * furnished to do so, subject to the following conditions:
00007  *
00008  * The above copyright notice and this permission notice shall be included in all copies or
00009  * substantial portions of the Software.
00010  *
00011  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00012  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00013  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00014  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00015  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00016  */
00017 #include "eth_arch.h"
00018 #if defined(TARGET_WIZwiki_W7500) || defined(TARGET_WIZwiki_W7500P) || defined(TARGET_WIZwiki_W7500ECO)
00019 
00020 
00021 #include "mbed.h"
00022 #include "mbed_debug.h"
00023 #include "DNSClient.h"
00024 
00025 
00026 /*
00027  * MDIO via GPIO
00028  * mdio via gpio is supported and related functions as follows.
00029  *  - mdio_init(),mdio_read(),mdio_write()
00030  *  - input_MDIO(),output_MDIO(),turnaroud_MDIO(),idle_MDIO()
00031  * called by ethernet_link() and ethernet_set_link()
00032  */
00033  
00034 #if defined (TARGET_WIZwiki_W7500) || defined(TARGET_WIZwiki_W7500ECO)
00035 
00036 #define MDIO            GPIO_Pin_14
00037 #define MDC             GPIO_Pin_15
00038 #define GPIO_MDC        GPIOB
00039 #define PHY_ADDR_IP101G 0x07 
00040 #define PHY_ADDR        PHY_ADDR_IP101G
00041 #define SVAL            0x2 //right shift val = 2 
00042 #define PHYREG_CONTROL  0x0 //Control Register address (Contorl basic register)
00043 #define PHYREG_STATUS   0x1 //Status Register address (Status basic register)
00044 #define CNTL_DUPLEX     (0x01ul<< 7)
00045 #define CNTL_AUTONEGO   (0x01ul<<11)
00046 #define CNTL_SPEED      (0x01ul<<12)
00047 #define MDC_WAIT        (1)
00048 
00049 #elif defined (TARGET_WIZwiki_W7500P) 
00050 
00051 #define MDIO            GPIO_Pin_15
00052 #define MDC             GPIO_Pin_14
00053 #define GPIO_MDC        GPIOB
00054 #define PHY_ADDR_IP101G 0x01 
00055 #define PHY_ADDR        PHY_ADDR_IP101G
00056 #define SVAL            0x2 //right shift val = 2 
00057 #define PHYREG_CONTROL  0x0 //Control Register address (Contorl basic register)
00058 #define PHYREG_STATUS   0x1 //Status Register address (Status basic register)
00059 #define CNTL_DUPLEX     (0x01ul<< 7)
00060 #define CNTL_AUTONEGO   (0x01ul<<11)
00061 #define CNTL_SPEED      (0x01ul<<12)
00062 #define MDC_WAIT        (1)
00063 
00064 #endif
00065 
00066 void mdio_init(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin_MDC, uint16_t GPIO_Pin_MDIO);
00067 void mdio_write(GPIO_TypeDef* GPIOx, uint32_t PhyRegAddr, uint32_t val);
00068 uint32_t mdio_read(GPIO_TypeDef* GPIOx, uint32_t PhyRegAddr);
00069 
00070 WIZnet_Chip* WIZnet_Chip::inst;
00071 
00072 WIZnet_Chip::WIZnet_Chip()
00073 {
00074     inst = this;
00075 }
00076 
00077 bool WIZnet_Chip::setmac()
00078 {
00079     reg_wr_mac(SHAR, mac);
00080     return true;
00081 }
00082 
00083 // Set the IP
00084 bool WIZnet_Chip::setip()
00085 {
00086     reg_wr<uint32_t>(SIPR, ip);
00087     reg_wr<uint32_t>(GAR, gateway);
00088     reg_wr<uint32_t>(SUBR, netmask);
00089     return true;
00090 }
00091 
00092 bool WIZnet_Chip::setProtocol(int socket, Protocol p)
00093 {
00094     if (socket < 0) {
00095         return false;
00096     }
00097     sreg<uint8_t>(socket, Sn_MR, p);
00098     return true;
00099 }
00100 
00101 bool WIZnet_Chip::connect(int socket, const char * host, int port, int timeout_ms)
00102 {
00103     if (socket < 0) {
00104         return false;
00105     }
00106     sreg<uint8_t>(socket, Sn_MR, TCP);
00107     scmd(socket, OPEN);
00108     sreg_ip(socket, Sn_DIPR, host);
00109     sreg<uint16_t>(socket, Sn_DPORT, port);
00110     sreg<uint16_t>(socket, Sn_PORT, new_port());
00111     scmd(socket, CONNECT);
00112     Timer t;
00113     t.reset();
00114     t.start();
00115     while(!is_connected(socket)) {
00116         if (t.read_ms() > timeout_ms) {
00117             return false;
00118         }
00119     }
00120     return true;
00121 }
00122 
00123 bool WIZnet_Chip::gethostbyname(const char* host, uint32_t* ip)
00124 {
00125     uint32_t addr = str_to_ip(host);
00126     char buf[17];
00127     snprintf(buf, sizeof(buf), "%d.%d.%d.%d", 
00128             (uint8_t)((addr>>24)&0xff), 
00129             (uint8_t)((addr>>16)&0xff), 
00130             (uint8_t)((addr>>8)&0xff), 
00131             (uint8_t)(addr&0xff));
00132     if (strcmp(buf, host) == 0) {
00133         *ip = addr;
00134         return true;
00135     }
00136     DNSClient client;
00137     if(client.lookup(host)) {
00138         *ip = client.ip;
00139         return true;
00140     }
00141     return false;
00142 }
00143 
00144 
00145 bool WIZnet_Chip::is_connected(int socket)
00146 {
00147     /*
00148        if (sreg<uint8_t>(socket, Sn_SR) == SOCK_ESTABLISHED) {
00149        return true;
00150        }
00151      */
00152     uint8_t tmpSn_SR;
00153     tmpSn_SR = sreg<uint8_t>(socket, Sn_SR);
00154     // packet sending is possible, when state is SOCK_CLOSE_WAIT.
00155     if ((tmpSn_SR == SOCK_ESTABLISHED) || (tmpSn_SR == SOCK_CLOSE_WAIT)) {
00156         return true;
00157     }
00158     return false;
00159 }
00160 // Reset the chip & set the buffer
00161 void WIZnet_Chip::reset()
00162 {
00163     /* S/W Reset PHY */
00164     mdio_write(GPIO_MDC, PHYREG_CONTROL, 0x8000);
00165     wait_ms(10);//for S/W reset
00166     wait_ms(10);//for MDC I/F RDY
00167 
00168     mdio_init(GPIO_MDC, MDC, MDIO);
00169     
00170     /* S/W Reset WZTOE */
00171     reg_wr<uint8_t>(MR, MR_RST);
00172     // set PAD strengh and pull-up for TXD[3:0] and TXE 
00173 #ifdef __DEF_USED_IC101AG__ //For using IC+101AG
00174 
00175 #if defined(TARGET_WIZwiki_W7500) || defined(TARGET_WIZwiki_W7500ECO)
00176 
00177     *(volatile uint32_t *)(0x41003068) = 0x64; //TXD0 
00178     *(volatile uint32_t *)(0x4100306C) = 0x64; //TXD1
00179     *(volatile uint32_t *)(0x41003070) = 0x64; //TXD2
00180     *(volatile uint32_t *)(0x41003074) = 0x64; //TXD3
00181     *(volatile uint32_t *)(0x41003050) = 0x64; //TXE
00182 #endif
00183 
00184 #endif  
00185 
00186     // set ticker counter
00187     reg_wr<uint32_t>(TIC100US, (SystemCoreClock/10000));
00188     // write MAC address inside the WZTOE MAC address register
00189     reg_wr_mac(SHAR, mac);
00190     /*
00191      * set RX and TX buffer size
00192      * for (int socket = 0; socket < MAX_SOCK_NUM; socket++) {
00193      *  sreg<uint8_t>(socket, Sn_RXBUF_SIZE, 2);
00194      *  sreg<uint8_t>(socket, Sn_TXBUF_SIZE, 2);
00195      * }
00196      */
00197 }
00198 
00199 
00200 bool WIZnet_Chip::close(int socket)
00201 {
00202     if (socket < 0) {
00203         return false;
00204     }
00205     // if SOCK_CLOSED, return
00206     if (sreg<uint8_t>(socket, Sn_SR) == SOCK_CLOSED) {
00207         return true;
00208     }
00209     // if SOCK_ESTABLISHED, send FIN-Packet to peer 
00210     if (sreg<uint8_t>(socket, Sn_MR) == TCP) {
00211         scmd(socket, DISCON);
00212     }
00213     // close socket
00214     scmd(socket, CLOSE);
00215     // clear Socket Interrupt Register
00216     sreg<uint8_t>(socket, Sn_ICR, 0xff);
00217     return true;
00218 }
00219 
00220 int WIZnet_Chip::wait_readable(int socket, int wait_time_ms, int req_size)
00221 {
00222     if (socket < 0) {
00223         return -1;
00224     }
00225     Timer t;
00226     t.reset();
00227     t.start();
00228     while(1) {
00229         int size = sreg<uint16_t>(socket, Sn_RX_RSR);
00230         if (size > req_size) {
00231             return size;
00232         }
00233         if (wait_time_ms != (-1) && t.read_ms() > wait_time_ms) {
00234             break;
00235         }
00236     }
00237     return -1;
00238 }
00239 
00240 int WIZnet_Chip::wait_writeable(int socket, int wait_time_ms, int req_size)
00241 {
00242     if (socket < 0) {
00243         return -1;
00244     }
00245     Timer t;
00246     t.reset();
00247     t.start();
00248     while(1) {
00249         int size = sreg<uint16_t>(socket, Sn_TX_FSR);
00250         if (size > req_size) {
00251             return size;
00252         }
00253         if (wait_time_ms != (-1) && t.read_ms() > wait_time_ms) {
00254             break;
00255         }
00256     }
00257     return -1;
00258 }
00259 
00260 int WIZnet_Chip::send(int socket, const char * str, int len)
00261 {
00262     if (socket < 0) {
00263         return -1;
00264     }
00265 
00266     uint16_t ptr = sreg<uint16_t>(socket, Sn_TX_WR);
00267     uint32_t sn_tx_base = W7500x_TXMEM_BASE + (uint32_t)(socket<<18); 
00268 
00269     for(int i=0; i<len; i++)
00270         *(volatile uint8_t *)(sn_tx_base + ((ptr+i)&0xFFFF)) = str[i];
00271 
00272     sreg<uint16_t>(socket, Sn_TX_WR, ptr + len);
00273     scmd(socket, SEND);
00274 
00275     uint8_t tmp_Sn_IR;
00276     while (( (tmp_Sn_IR = sreg<uint8_t>(socket, Sn_IR)) & INT_SEND_OK) != INT_SEND_OK) {
00277         // @Jul.10, 2014 fix contant name, and udp sendto function.
00278         switch (sreg<uint8_t>(socket, Sn_SR)) {
00279             case SOCK_CLOSED :
00280                 close(socket);
00281                 return 0;
00282                 //break;
00283             case SOCK_UDP :
00284                 // ARP timeout is possible.
00285                 if ((tmp_Sn_IR & INT_TIMEOUT) == INT_TIMEOUT) {
00286                     sreg<uint8_t>(socket, Sn_ICR, INT_TIMEOUT);
00287                     return 0;
00288                 }
00289                 break;
00290             default :
00291                 break;
00292         }
00293     }
00294 
00295     sreg<uint8_t>(socket, Sn_ICR, INT_SEND_OK);
00296 
00297     return len;
00298 }
00299 
00300 int WIZnet_Chip::recv(int socket, char* buf, int len)
00301 {
00302     if (socket < 0) {
00303         return -1;
00304     }
00305     uint16_t ptr = sreg<uint16_t>(socket, Sn_RX_RD);
00306     uint32_t sn_rx_base = W7500x_RXMEM_BASE + (uint32_t)(socket<<18); 
00307 
00308     for(int i=0; i<len; i++)
00309         buf[i] = *(volatile uint8_t *)(sn_rx_base + ((ptr+i)&0xFFFF));
00310 
00311     sreg<uint16_t>(socket, Sn_RX_RD, ptr + len);
00312     scmd(socket, RECV);
00313 
00314     return len;
00315 }
00316 
00317 int WIZnet_Chip::new_socket()
00318 {
00319     for(int s = 0; s < MAX_SOCK_NUM; s++) {
00320         if (sreg<uint8_t>(s, Sn_SR) == SOCK_CLOSED) {
00321             return s;
00322         }
00323     }
00324     return -1;
00325 }
00326 
00327 uint16_t WIZnet_Chip::new_port()
00328 {
00329     uint16_t port = rand();
00330     port |= 49152;
00331     return port;
00332 }
00333 
00334 bool WIZnet_Chip::link(int wait_time_ms)
00335 {
00336     Timer t;
00337     t.reset();
00338     t.start();
00339     while(1) {
00340         int is_link = ethernet_link();
00341         
00342         if (is_link) {
00343             return true;
00344         }
00345         if (wait_time_ms != (-1) && t.read_ms() > wait_time_ms) {
00346             break;
00347         }
00348     }
00349     return 0;
00350 }
00351 
00352 void WIZnet_Chip::set_link(PHYMode phymode)
00353 {
00354     int speed = -1;
00355     int duplex = 0;
00356 
00357     switch(phymode) {
00358         case AutoNegotiate : speed = -1; duplex = 0; break;
00359         case HalfDuplex10  : speed = 0;  duplex = 0; break;
00360         case FullDuplex10  : speed = 0;  duplex = 1; break;
00361         case HalfDuplex100 : speed = 1;  duplex = 0; break;
00362         case FullDuplex100 : speed = 1;  duplex = 1; break;
00363     }
00364 
00365     ethernet_set_link(speed, duplex);
00366 }
00367 
00368 uint32_t str_to_ip(const char* str)
00369 {
00370     uint32_t ip = 0;
00371     char* p = (char*)str;
00372     for(int i = 0; i < 4; i++) {
00373         ip |= atoi(p);
00374         p = strchr(p, '.');
00375         if (p == NULL) {
00376             break;
00377         }
00378         ip <<= 8;
00379         p++;
00380     }
00381     return ip;
00382 }
00383 
00384 void printfBytes(char* str, uint8_t* buf, int len)
00385 {
00386     printf("%s %d:", str, len);
00387     for(int i = 0; i < len; i++) {
00388         printf(" %02x", buf[i]);
00389     }
00390     printf("\n");
00391 }
00392 
00393 void printHex(uint8_t* buf, int len)
00394 {
00395     for(int i = 0; i < len; i++) {
00396         if ((i%16) == 0) {
00397             printf("%p", buf+i);
00398         }
00399         printf(" %02x", buf[i]);
00400         if ((i%16) == 15) {
00401             printf("\n");
00402         }
00403     }
00404     printf("\n");
00405 }
00406 
00407 void debug_hex(uint8_t* buf, int len)
00408 {
00409     for(int i = 0; i < len; i++) {
00410         if ((i%16) == 0) {
00411             debug("%p", buf+i);
00412         }
00413         debug(" %02x", buf[i]);
00414         if ((i%16) == 15) {
00415             debug("\n");
00416         }
00417     }
00418     debug("\n");
00419 }
00420 
00421 void WIZnet_Chip::scmd(int socket, Command cmd)
00422 {
00423     sreg<uint8_t>(socket, Sn_CR, cmd);
00424     while(sreg<uint8_t>(socket, Sn_CR));
00425 }
00426 
00427 
00428 void mdio_init(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin_MDC, uint16_t GPIO_Pin_MDIO)
00429 {
00430     /* Set GPIOs for MDIO and MDC */
00431     GPIO_InitTypeDef MDIO_InitDef;  
00432     HAL_PAD_AFConfig(PAD_PB, GPIO_Pin_MDIO, PAD_AF1);  
00433     HAL_PAD_AFConfig(PAD_PB, GPIO_Pin_MDC, PAD_AF1);  
00434     MDIO_InitDef.GPIO_Pin = GPIO_Pin_MDC | GPIO_Pin_MDIO;
00435     MDIO_InitDef.GPIO_Mode = GPIO_Mode_OUT;
00436     HAL_GPIO_Init(GPIOx, &MDIO_InitDef);
00437 }
00438 
00439 void output_MDIO(GPIO_TypeDef* GPIOx, uint32_t val, uint32_t n)
00440 {
00441     for(val <<= (32-n); n; val<<=1, n--)
00442     {
00443         if(val & 0x80000000)
00444             HAL_GPIO_SetBits(GPIOx, MDIO); 
00445         else
00446             HAL_GPIO_ResetBits(GPIOx, MDIO);
00447 
00448         wait_ms(MDC_WAIT);
00449         HAL_GPIO_SetBits(GPIOx, MDC); 
00450         wait_ms(MDC_WAIT);
00451         HAL_GPIO_ResetBits(GPIOx, MDC);
00452     }
00453 }
00454 
00455 uint32_t input_MDIO( GPIO_TypeDef* GPIOx )
00456 {
00457     uint32_t i, val=0; 
00458     for(i=0; i<16; i++)
00459     {
00460         val <<=1;
00461         HAL_GPIO_SetBits(GPIOx, MDC); 
00462         wait_ms(MDC_WAIT);
00463         HAL_GPIO_ResetBits(GPIOx, MDC);
00464         wait_ms(MDC_WAIT);
00465         val |= HAL_GPIO_ReadInputDataBit(GPIOx, MDIO);
00466     }
00467     return (val);
00468 }
00469 
00470 void turnaround_MDIO( GPIO_TypeDef* GPIOx)
00471 {
00472     GPIOx->OUTENCLR = MDIO ;
00473     HAL_GPIO_SetBits(GPIOx, MDC); 
00474     wait_ms(MDC_WAIT);
00475     HAL_GPIO_ResetBits(GPIOx, MDC);
00476     wait_ms(MDC_WAIT);
00477 }
00478 
00479 void idle_MDIO( GPIO_TypeDef* GPIOx )
00480 {
00481     GPIOx->OUTENSET = MDIO ;
00482     HAL_GPIO_SetBits(GPIOx,MDC); 
00483     wait_ms(MDC_WAIT);
00484     HAL_GPIO_ResetBits(GPIOx, MDC);
00485     wait_ms(MDC_WAIT);
00486 }
00487 
00488 uint32_t mdio_read(GPIO_TypeDef* GPIOx, uint32_t PhyRegAddr)
00489 {
00490     output_MDIO(GPIOx, 0xFFFFFFFF, 32);
00491     output_MDIO(GPIOx, 0x06, 4);
00492     output_MDIO(GPIOx, PHY_ADDR, 5);
00493     output_MDIO(GPIOx, PhyRegAddr, 5);
00494     turnaround_MDIO(GPIOx);
00495     uint32_t val = input_MDIO(GPIOx );
00496     idle_MDIO(GPIOx);
00497     return val;
00498 }
00499 
00500 void mdio_write(GPIO_TypeDef* GPIOx, uint32_t PhyRegAddr, uint32_t val)
00501 {
00502     output_MDIO(GPIOx, 0xFFFFFFFF, 32);
00503     output_MDIO(GPIOx, 0x05, 4);
00504     output_MDIO(GPIOx, PHY_ADDR, 5);
00505     output_MDIO(GPIOx, PhyRegAddr, 5);
00506     output_MDIO(GPIOx, 0x02, 2);
00507     output_MDIO(GPIOx, val, 16);
00508     idle_MDIO(GPIOx);
00509 }
00510 
00511 int WIZnet_Chip::ethernet_link(void) {
00512     return ((mdio_read(GPIO_MDC, PHYREG_STATUS)>>SVAL)&0x01); 
00513 }
00514 
00515 void WIZnet_Chip::ethernet_set_link(int speed, int duplex) {
00516     uint32_t val=0;
00517     if((speed < 0) || (speed > 1)) {
00518         val = CNTL_AUTONEGO; 
00519     } else {
00520         val = ((CNTL_SPEED&(speed<<11))|(CNTL_DUPLEX&(duplex<<7))); 
00521     }
00522     mdio_write(GPIO_MDC, PHYREG_CONTROL, val);
00523 }
00524 
00525    void WIZnet_Chip::reg_rd_mac(uint16_t addr, uint8_t* data) 
00526    {
00527         data[0] = *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+3));
00528         data[1] = *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+2));
00529         data[2] = *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+1));
00530         data[3] = *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+0));
00531         data[4] = *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+7));
00532         data[5] = *(volatile uint8_t *)(W7500x_WZTOE_BASE + (uint32_t)(addr+6));
00533     }
00534 
00535     void WIZnet_Chip::reg_wr_ip(uint16_t addr, uint8_t cb, const char* ip)
00536     {
00537         uint8_t buf[4]={0,};
00538         uint32_t wr_ip = 0;
00539         char* p = (char*)ip;
00540         
00541         for(int i = 0; i < 4; i++) {
00542             wr_ip = (wr_ip<<8);
00543             buf[i] = atoi(p);
00544             wr_ip |= buf[i];
00545             p = strchr(p, '.');
00546             if (p == NULL) break;
00547             p++;
00548         }
00549         *(volatile uint32_t *)(W7500x_WZTOE_BASE + (uint32_t)((cb<<16)+addr)) = wr_ip;
00550     }
00551 
00552     void WIZnet_Chip::sreg_ip(int socket, uint16_t addr, const char* ip) {
00553         reg_wr_ip(addr,  (uint8_t)(0x01+(socket<<2)), ip);
00554     }
00555 
00556 #endif
00557 
00558