uint8_t SOCK_OpenSocket(uint8_t sock, uint8_t eth_protocol, uint16_t tcp_port) {
uint8_t val;
uint16_t sockaddr;
if (sock>=W5100_NUM_SOCKETS) {
return ERR_VALUE; /* out of range */
}
sockaddr = W5100_SKT_BASE(sock);
/* Make sure we close the socket first */
if (W5100_MemReadByte(sockaddr+W5100_SR_OFFSET, &val)!=ERR_OK) {
return ERR_FAILED; /* failure */
}
if (val==W5100_SOCK_CLOSED) {
/* make sure we close the socket */
SOCK_CloseSocket(sock);
}
/* Assigned Socket 0 Mode Register */
W5100_MemWriteByte(sockaddr+W5100_MR_OFFSET, eth_protocol);
/* Now open the Socket 0 */
W5100_MemWriteWord(sockaddr+W5100_PORT_OFFSET, tcp_port);
W5100_MemWriteByte(sockaddr+W5100_CR_OFFSET, W5100_CR_OPEN); /* Open Socket */
/* Wait for Opening Process */
do {
W5100_MemReadByte(sockaddr+W5100_CR_OFFSET, &val);
} while(val!=0);
/* Check for Init Status */
W5100_MemReadByte(sockaddr+W5100_SR_OFFSET, &val);
if (val==W5100_SOCK_INIT) {
return ERR_OK;
} else {
SOCK_CloseSocket(sock);
}
return ERR_FAILED;
}
uint8_t SOCK_Receive(uint8_t sock, uint8_t *buf, size_t bufSize, size_t readSize) {
uint16_t offaddr, realaddr;
uint16_t sockaddr;
if (readSize<=0 || sock>=W5100_NUM_SOCKETS) {
return ERR_VALUE; /* failure */
}
if (readSize>bufSize) { /* If the requested size > MAX_BUF, just truncate it */
readSize = bufSize-2;
}
sockaddr = W5100_SKT_BASE(sock);
/* Read the Rx Read Pointer */
W5100_MemReadWord(sockaddr+W5100_RX_RD_OFFSET, &offaddr);
while (readSize) {
readSize--;
realaddr = (W5100_RXBUFADDR + (0x0800*sock))+(offaddr&W5100_RX_BUF_MASK);
W5100_MemReadByte(realaddr, buf);
offaddr++;
buf++;
}
*buf='\0'; /* string terminated character */
/* Increase the S0_RX_RD value, so it point to the next receive */
W5100_MemWriteWord(sockaddr+W5100_RX_RD_OFFSET, offaddr);
/* Now Send the RECV command */
W5100_MemWriteByte(sockaddr+W5100_CR_OFFSET, W5100_CR_RECV);
WAIT1_Waitus(5); /* Wait for Receive Process */
return ERR_OK;
}
uint8_t SOCK_Socket(uint8_t sock, uint8_t eth_protocol, uint16_t tcp_port) {
uint8_t val, retval = 0;
if (sock!=0) {
return retval;
}
/* Make sure we close the socket first */
if (W5100_MemReadByte(W5100_S0_SR, &val)!=ERR_OK) {
return 0; /* failure */
}
if (val==W5100_SOCK_CLOSED) {
SOCK_Close(sock);
}
/* Assigned Socket 0 Mode Register */
W5100_MemWriteByte(W5100_S0_MR, eth_protocol);
/* Now open the Socket 0 */
W5100_MemWriteWord(W5100_S0_PORT, tcp_port);
W5100_MemWriteByte(W5100_S0_CR, W5100_CR_OPEN); /* Open Socket */
/* Wait for Opening Process */
do {
W5100_MemReadByte(W5100_S0_CR, &val);
} while(val!=0);
/* Check for Init Status */
W5100_MemReadByte(W5100_S0_SR, &val);
if (val==W5100_SOCK_INIT) {
retval = 1;
} else {
SOCK_Close(sock);
}
return retval;
}
uint16_t SOCK_Recv(uint8_t sock, uint8_t *buf, uint16_t buflen) {
uint16_t offaddr, realaddr;
if (buflen<=0 || sock!=0) {
return 1;
}
/* If the request size > MAX_BUF,just truncate it */
if (buflen>W5100_MAX_BUF) {
buflen = W5100_MAX_BUF-2;
}
/* Read the Rx Read Pointer */
W5100_MemReadWord(W5100_S0_RX_RD, &offaddr);
#if _DEBUG_MODE
printf("RX Buffer: %x\n",offaddr);
#endif
while (buflen) {
buflen--;
realaddr = W5100_RXBUFADDR+(offaddr&W5100_RX_BUF_MASK);
W5100_MemWriteByte(realaddr, *buf);
offaddr++;
buf++;
}
*buf='\0'; /* String terminated character */
/* Increase the S0_RX_RD value, so it point to the next receive */
W5100_MemWriteWord(W5100_S0_RX_RD, offaddr);
/* Now Send the RECV command */
W5100_MemWriteByte(W5100_S0_CR, W5100_CR_RECV);
WAIT1_Waitus(5); // Wait for Receive Process
return 1;
}
uint16_t SOCK_Send(uint8_t sock, const uint8_t *buf, uint16_t buflen) {
uint16_t offaddr, realaddr, txsize, timeout;
uint8_t val;
if (buflen<=0 || sock!=0) {
return 0;
}
#if _DEBUG_MODE
printf("Send Size: %d\n",buflen);
#endif
/* Make sure the TX Free Size Register is available */
W5100_MemReadWord(W5100_SO_TX_FSR, &txsize);
#if _DEBUG_MODE
printf("TX Free Size: %d\n",txsize);
#endif
timeout=0;
while (txsize<buflen) {
WAIT1_WaitOSms(1);
W5100_MemReadWord(W5100_SO_TX_FSR, &txsize);
/* Timeout for approximately 1000 ms */
if (timeout++ > 1000) {
#if _DEBUG_MODE
printf("TX Free Size Error!\n");
#endif
/* Disconnect the connection */
SOCK_Disconnect(sock);
return 0;
}
}
/* Read the Tx Write Pointer */
W5100_MemReadWord(W5100_S0_TX_WR, &offaddr);
#if _DEBUG_MODE
printf("TX Buffer: %x\n", offaddr);
#endif
while(buflen) {
buflen--;
/* Calculate the real W5100 physical Tx Buffer Address */
realaddr = W5100_TXBUFADDR+(offaddr&W5100_TX_BUF_MASK);
/* Copy the application data to the W5100 Tx Buffer */
W5100_MemWriteByte(realaddr, *buf);
offaddr++;
buf++;
}
/* Increase the S0_TX_WR value, so it point to the next transmit */
W5100_MemWriteWord(W5100_S0_TX_WR, offaddr);
/* Now Send the SEND command */
W5100_MemWriteByte(W5100_S0_CR, W5100_CR_SEND);
/* Wait for Sending Process */
do {
W5100_MemReadByte(W5100_S0_CR, &val);
} while(val!=0);
return 1;
}
uint8_t SOCK_Send(uint8_t sock, const uint8_t *buf, size_t buflen) {
uint16_t offaddr, realaddr, txsize, timeout, sockaddr;
uint8_t val;
if (buflen<=0 || sock>=W5100_NUM_SOCKETS) {
return ERR_VALUE;
}
sockaddr = W5100_SKT_BASE(sock);
/* Make sure the TX Free Size Register is available */
W5100_MemReadWord(sockaddr+W5100_TX_FSR_OFFSET, &txsize);
timeout=0;
while (txsize<buflen) {
WAIT1_WaitOSms(1);
W5100_MemReadWord(sockaddr+W5100_TX_FSR_OFFSET, &txsize);
/* Timeout for approximately 1000 ms */
if (timeout++ > 1000) {
/* Disconnect the connection */
SOCK_Disconnect(sock);
return ERR_FAILED;
}
}
/* Read the Tx Write Pointer */
W5100_MemReadWord(sockaddr+W5100_TX_WR_OFFSET, &offaddr);
while(buflen) {
buflen--;
/* Calculate the real W5100 physical Tx Buffer Address */
realaddr = (W5100_TXBUFADDR+(0x0800*sock)) + (offaddr&W5100_TX_BUF_MASK);
/* Copy the application data to the W5100 Tx Buffer */
W5100_MemWriteByte(realaddr, *buf);
offaddr++;
buf++;
}
/* Increase the S0_TX_WR value, so it point to the next transmit */
W5100_MemWriteWord(sockaddr+W5100_TX_WR_OFFSET, offaddr);
/* Now Send the SEND command */
W5100_MemWriteByte(sockaddr+W5100_CR_OFFSET, W5100_CR_SEND);
/* Wait for Sending Process */
do {
W5100_MemReadByte(sockaddr+W5100_CR_OFFSET, &val);
} while(val!=0);
return ERR_OK;
}
