mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-04 15:24:12 +01:00
328 lines
7.5 KiB
C++
328 lines
7.5 KiB
C++
#include "w5100.h"
|
|
#include "socket.h"
|
|
|
|
static uint16_t local_port;
|
|
|
|
/**
|
|
* @brief This Socket function initialize the channel in perticular mode, and set the port and wait for W5100 done it.
|
|
* @return 1 for success else 0.
|
|
*/
|
|
uint8_t socket(SOCKET s, uint8_t protocol, uint16_t port, uint8_t flag)
|
|
{
|
|
uint8_t ret;
|
|
if ((protocol == SnMR::TCP) || (protocol == SnMR::UDP) || (protocol == SnMR::IPRAW) || (protocol == SnMR::MACRAW) || (protocol == SnMR::PPPOE))
|
|
{
|
|
close(s);
|
|
W5100.writeSnMR(s, protocol | flag);
|
|
if (port != 0) {
|
|
W5100.writeSnPORT(s, port);
|
|
}
|
|
else {
|
|
local_port++; // if don't set the source port, set local_port number.
|
|
W5100.writeSnPORT(s, local_port);
|
|
}
|
|
|
|
W5100.execCmdSn(s, Sock_OPEN);
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function close the socket and parameter is "s" which represent the socket number
|
|
*/
|
|
void close(SOCKET s)
|
|
{
|
|
W5100.execCmdSn(s, Sock_CLOSE);
|
|
W5100.writeSnIR(s, 0xFF);
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function established the connection for the channel in passive (server) mode. This function waits for the request from the peer.
|
|
* @return 1 for success else 0.
|
|
*/
|
|
uint8_t listen(SOCKET s)
|
|
{
|
|
if (W5100.readSnSR(s) != SnSR::INIT)
|
|
return 0;
|
|
W5100.execCmdSn(s, Sock_LISTEN);
|
|
return 1;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function established the connection for the channel in Active (client) mode.
|
|
* This function waits for the untill the connection is established.
|
|
*
|
|
* @return 1 for success else 0.
|
|
*/
|
|
uint8_t connect(SOCKET s, uint8_t * addr, uint16_t port)
|
|
{
|
|
if
|
|
(
|
|
((addr[0] == 0xFF) && (addr[1] == 0xFF) && (addr[2] == 0xFF) && (addr[3] == 0xFF)) ||
|
|
((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
|
|
(port == 0x00)
|
|
)
|
|
return 0;
|
|
|
|
// set destination IP
|
|
W5100.writeSnDIPR(s, addr);
|
|
W5100.writeSnDPORT(s, port);
|
|
W5100.execCmdSn(s, Sock_CONNECT);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* @brief This function used for disconnect the socket and parameter is "s" which represent the socket number
|
|
* @return 1 for success else 0.
|
|
*/
|
|
void disconnect(SOCKET s)
|
|
{
|
|
W5100.execCmdSn(s, Sock_DISCON);
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function used to send the data in TCP mode
|
|
* @return 1 for success else 0.
|
|
*/
|
|
uint16_t send(SOCKET s, const uint8_t * buf, uint16_t len)
|
|
{
|
|
uint8_t status=0;
|
|
uint16_t ret=0;
|
|
uint16_t freesize=0;
|
|
|
|
if (len > W5100.SSIZE)
|
|
ret = W5100.SSIZE; // check size not to exceed MAX size.
|
|
else
|
|
ret = len;
|
|
|
|
// if freebuf is available, start.
|
|
do
|
|
{
|
|
freesize = W5100.getTXFreeSize(s);
|
|
status = W5100.readSnSR(s);
|
|
if ((status != SnSR::ESTABLISHED) && (status != SnSR::CLOSE_WAIT))
|
|
{
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
while (freesize < ret);
|
|
|
|
// copy data
|
|
W5100.send_data_processing(s, (uint8_t *)buf, ret);
|
|
W5100.execCmdSn(s, Sock_SEND);
|
|
|
|
/* +2008.01 bj */
|
|
while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK )
|
|
{
|
|
/* m2008.01 [bj] : reduce code */
|
|
if ( W5100.readSnSR(s) == SnSR::CLOSED )
|
|
{
|
|
close(s);
|
|
return 0;
|
|
}
|
|
}
|
|
/* +2008.01 bj */
|
|
W5100.writeSnIR(s, SnIR::SEND_OK);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function is an application I/F function which is used to receive the data in TCP mode.
|
|
* It continues to wait for data as much as the application wants to receive.
|
|
*
|
|
* @return received data size for success else -1.
|
|
*/
|
|
uint16_t recv(SOCKET s, uint8_t *buf, uint16_t len)
|
|
{
|
|
uint16_t ret=0;
|
|
|
|
if ( len > 0 )
|
|
{
|
|
W5100.recv_data_processing(s, buf, len);
|
|
W5100.execCmdSn(s, Sock_RECV);
|
|
ret = len;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Returns the first byte in the receive queue (no checking)
|
|
*
|
|
* @return
|
|
*/
|
|
uint16_t peek(SOCKET s, uint8_t *buf)
|
|
{
|
|
W5100.recv_data_processing(s, buf, 1, 1);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function is an application I/F function which is used to send the data for other then TCP mode.
|
|
* Unlike TCP transmission, The peer's destination address and the port is needed.
|
|
*
|
|
* @return This function return send data size for success else -1.
|
|
*/
|
|
uint16_t sendto(SOCKET s, const uint8_t *buf, uint16_t len, uint8_t *addr, uint16_t port)
|
|
{
|
|
uint16_t ret=0;
|
|
|
|
if (len > W5100.SSIZE) ret = W5100.SSIZE; // check size not to exceed MAX size.
|
|
else ret = len;
|
|
|
|
if
|
|
(
|
|
((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
|
|
((port == 0x00)) ||(ret == 0)
|
|
)
|
|
{
|
|
/* +2008.01 [bj] : added return value */
|
|
ret = 0;
|
|
}
|
|
else
|
|
{
|
|
W5100.writeSnDIPR(s, addr);
|
|
W5100.writeSnDPORT(s, port);
|
|
|
|
// copy data
|
|
W5100.send_data_processing(s, (uint8_t *)buf, ret);
|
|
W5100.execCmdSn(s, Sock_SEND);
|
|
|
|
/* +2008.01 bj */
|
|
while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK )
|
|
{
|
|
if (W5100.readSnIR(s) & SnIR::TIMEOUT)
|
|
{
|
|
/* +2008.01 [bj]: clear interrupt */
|
|
W5100.writeSnIR(s, (SnIR::SEND_OK | SnIR::TIMEOUT)); /* clear SEND_OK & TIMEOUT */
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* +2008.01 bj */
|
|
W5100.writeSnIR(s, SnIR::SEND_OK);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function is an application I/F function which is used to receive the data in other then
|
|
* TCP mode. This function is used to receive UDP, IP_RAW and MAC_RAW mode, and handle the header as well.
|
|
*
|
|
* @return This function return received data size for success else -1.
|
|
*/
|
|
uint16_t recvfrom(SOCKET s, uint8_t *buf, uint16_t len, uint8_t *addr, uint16_t *port)
|
|
{
|
|
uint8_t head[8];
|
|
uint16_t data_len=0;
|
|
uint16_t ptr=0;
|
|
|
|
if ( len > 0 )
|
|
{
|
|
ptr = W5100.readSnRX_RD(s);
|
|
switch (W5100.readSnMR(s) & 0x07)
|
|
{
|
|
case SnMR::UDP :
|
|
W5100.read_data(s, (uint8_t *)ptr, head, 0x08);
|
|
ptr += 8;
|
|
// read peer's IP address, port number.
|
|
addr[0] = head[0];
|
|
addr[1] = head[1];
|
|
addr[2] = head[2];
|
|
addr[3] = head[3];
|
|
*port = head[4];
|
|
*port = (*port << 8) + head[5];
|
|
data_len = head[6];
|
|
data_len = (data_len << 8) + head[7];
|
|
|
|
W5100.read_data(s, (uint8_t *)ptr, buf, data_len); // data copy.
|
|
ptr += data_len;
|
|
|
|
W5100.writeSnRX_RD(s, ptr);
|
|
break;
|
|
|
|
case SnMR::IPRAW :
|
|
W5100.read_data(s, (uint8_t *)ptr, head, 0x06);
|
|
ptr += 6;
|
|
|
|
addr[0] = head[0];
|
|
addr[1] = head[1];
|
|
addr[2] = head[2];
|
|
addr[3] = head[3];
|
|
data_len = head[4];
|
|
data_len = (data_len << 8) + head[5];
|
|
|
|
W5100.read_data(s, (uint8_t *)ptr, buf, data_len); // data copy.
|
|
ptr += data_len;
|
|
|
|
W5100.writeSnRX_RD(s, ptr);
|
|
break;
|
|
|
|
case SnMR::MACRAW:
|
|
W5100.read_data(s,(uint8_t*)ptr,head,2);
|
|
ptr+=2;
|
|
data_len = head[0];
|
|
data_len = (data_len<<8) + head[1] - 2;
|
|
|
|
W5100.read_data(s,(uint8_t*) ptr,buf,data_len);
|
|
ptr += data_len;
|
|
W5100.writeSnRX_RD(s, ptr);
|
|
break;
|
|
|
|
default :
|
|
break;
|
|
}
|
|
W5100.execCmdSn(s, Sock_RECV);
|
|
}
|
|
return data_len;
|
|
}
|
|
|
|
|
|
uint16_t igmpsend(SOCKET s, const uint8_t * buf, uint16_t len)
|
|
{
|
|
uint8_t status=0;
|
|
uint16_t ret=0;
|
|
|
|
if (len > W5100.SSIZE)
|
|
ret = W5100.SSIZE; // check size not to exceed MAX size.
|
|
else
|
|
ret = len;
|
|
|
|
if (ret == 0)
|
|
return 0;
|
|
|
|
W5100.send_data_processing(s, (uint8_t *)buf, ret);
|
|
W5100.execCmdSn(s, Sock_SEND);
|
|
|
|
while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK )
|
|
{
|
|
status = W5100.readSnSR(s);
|
|
if (W5100.readSnIR(s) & SnIR::TIMEOUT)
|
|
{
|
|
/* in case of igmp, if send fails, then socket closed */
|
|
/* if you want change, remove this code. */
|
|
close(s);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
W5100.writeSnIR(s, SnIR::SEND_OK);
|
|
return ret;
|
|
}
|
|
|