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Arduino/hardware/libraries/Ethernet/utility/socket.c
David A. Mellis 92797b603e Adding ethernet library.
2008-07-30 14:47:36 +00:00

559 lines
14 KiB
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/*
*
@file socket.c
@brief setting chip register for socket
last update : 2008. Jan
*
*/
#include "types.h"
#include "w5100.h"
#include "socket.h"
static uint16 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 sucess else 0.
*/
uint8 socket(
SOCKET s, /**< for socket number */
uint8 protocol, /**< for socket protocol */
uint16 port, /**< the source port for the socket */
uint8 flag /**< the option for the socket */
)
{
uint8 ret;
#ifdef __DEF_IINCHIP_DBG__
printf("socket()\r\n");
#endif
if ((protocol == Sn_MR_TCP) || (protocol == Sn_MR_UDP) || (protocol == Sn_MR_IPRAW) || (protocol == Sn_MR_MACRAW) || (protocol == Sn_MR_PPPOE))
{
close(s);
IINCHIP_WRITE(Sn_MR(s),protocol | flag);
if (port != 0) {
IINCHIP_WRITE(Sn_PORT0(s),(uint8)((port & 0xff00) >> 8));
IINCHIP_WRITE((Sn_PORT0(s) + 1),(uint8)(port & 0x00ff));
} else {
local_port++; // if don't set the source port, set local_port number.
IINCHIP_WRITE(Sn_PORT0(s),(uint8)((local_port & 0xff00) >> 8));
IINCHIP_WRITE((Sn_PORT0(s) + 1),(uint8)(local_port & 0x00ff));
}
IINCHIP_WRITE(Sn_CR(s),Sn_CR_OPEN); // run sockinit Sn_CR
/* +20071122[chungs]:wait to process the command... */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
ret = 1;
}
else
{
ret = 0;
}
#ifdef __DEF_IINCHIP_DBG__
printf("Sn_SR = %.2x , Protocol = %.2x\r\n", IINCHIP_READ(Sn_SR(s)), IINCHIP_READ(Sn_MR(s)));
#endif
return ret;
}
/**
@brief This function close the socket and parameter is "s" which represent the socket number
*/
void close(SOCKET s)
{
#ifdef __DEF_IINCHIP_DBG__
printf("close()\r\n");
#endif
IINCHIP_WRITE(Sn_CR(s),Sn_CR_CLOSE);
/* +20071122[chungs]:wait to process the command... */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
/* +2008.01 [hwkim]: clear interrupt */
#ifdef __DEF_IINCHIP_INT__
/* m2008.01 [bj] : all clear */
putISR(s, 0x00);
#else
/* m2008.01 [bj] : all clear */
IINCHIP_WRITE(Sn_IR(s), 0xFF);
#endif
}
/**
@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 listen(
SOCKET s /**< the socket number */
)
{
uint8 ret;
#ifdef __DEF_IINCHIP_DBG__
printf("listen()\r\n");
#endif
if (IINCHIP_READ(Sn_SR(s)) == SOCK_INIT)
{
IINCHIP_WRITE(Sn_CR(s),Sn_CR_LISTEN);
/* +20071122[chungs]:wait to process the command... */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
ret = 1;
}
else
{
ret = 0;
#ifdef __DEF_IINCHIP_DBG__
printf("Fail[invalid ip,port]\r\n");
#endif
}
return ret;
}
/**
@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 connect(SOCKET s, uint8 * addr, uint16 port)
{
uint8 ret;
#ifdef __DEF_IINCHIP_DBG__
printf("connect()\r\n");
#endif
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)
)
{
ret = 0;
#ifdef __DEF_IINCHIP_DBG__
printf("Fail[invalid ip,port]\r\n");
#endif
}
else
{
ret = 1;
// set destination IP
IINCHIP_WRITE(Sn_DIPR0(s),addr[0]);
IINCHIP_WRITE((Sn_DIPR0(s) + 1),addr[1]);
IINCHIP_WRITE((Sn_DIPR0(s) + 2),addr[2]);
IINCHIP_WRITE((Sn_DIPR0(s) + 3),addr[3]);
IINCHIP_WRITE(Sn_DPORT0(s),(uint8)((port & 0xff00) >> 8));
IINCHIP_WRITE((Sn_DPORT0(s) + 1),(uint8)(port & 0x00ff));
IINCHIP_WRITE(Sn_CR(s),Sn_CR_CONNECT);
/* m2008.01 [bj] : wait for completion */
while ( IINCHIP_READ(Sn_CR(s)) ) ;
}
return ret;
}
/**
@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)
{
#ifdef __DEF_IINCHIP_DBG__
printf("disconnect()\r\n");
#endif
IINCHIP_WRITE(Sn_CR(s),Sn_CR_DISCON);
/* +20071122[chungs]:wait to process the command... */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
}
/**
@brief This function used to send the data in TCP mode
@return 1 for success else 0.
*/
uint16 send(
SOCKET s, /**< the socket index */
const uint8 * buf, /**< a pointer to data */
uint16 len /**< the data size to be send */
)
{
uint8 status=0;
uint16 ret=0;
uint16 freesize=0;
#ifdef __DEF_IINCHIP_DBG__
printf("send()\r\n");
#endif
if (len > getIINCHIP_TxMAX(s)) ret = getIINCHIP_TxMAX(s); // check size not to exceed MAX size.
else ret = len;
// if freebuf is available, start.
do
{
freesize = getSn_TX_FSR(s);
status = IINCHIP_READ(Sn_SR(s));
if ((status != SOCK_ESTABLISHED) && (status != SOCK_CLOSE_WAIT))
{
ret = 0;
break;
}
#ifdef __DEF_IINCHIP_DBG__
printf("socket %d freesize(%d) empty or error\r\n", s, freesize);
#endif
} while (freesize < ret);
// copy data
send_data_processing(s, (uint8 *)buf, ret);
IINCHIP_WRITE(Sn_CR(s),Sn_CR_SEND);
/* +20071122[chungs]:wait to process the command... */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
/* +2008.01 bj */
#ifdef __DEF_IINCHIP_INT__
while ( (getISR(s) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK )
#else
while ( (IINCHIP_READ(Sn_IR(s)) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK )
#endif
{
/* m2008.01 [bj] : reduce code */
if ( IINCHIP_READ(Sn_SR(s)) == SOCK_CLOSED )
{
#ifdef __DEF_IINCHIP_DBG__
printf("SOCK_CLOSED.\r\n");
#endif
close(s);
return 0;
}
}
/* +2008.01 bj */
#ifdef __DEF_IINCHIP_INT__
putISR(s, getISR(s) & (~Sn_IR_SEND_OK));
#else
IINCHIP_WRITE(Sn_IR(s), Sn_IR_SEND_OK);
#endif
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 recv(
SOCKET s, /**< socket index */
uint8 * buf, /**< a pointer to copy the data to be received */
uint16 len /**< the data size to be read */
)
{
uint16 ret=0;
#ifdef __DEF_IINCHIP_DBG__
printf("recv()\r\n");
#endif
if ( len > 0 )
{
recv_data_processing(s, buf, len);
IINCHIP_WRITE(Sn_CR(s),Sn_CR_RECV);
/* +20071122[chungs]:wait to process the command... */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
ret = len;
}
return ret;
}
/**
@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 sendto(
SOCKET s, /**< socket index */
const uint8 * buf, /**< a pointer to the data */
uint16 len, /**< the data size to send */
uint8 * addr, /**< the peer's Destination IP address */
uint16 port /**< the peer's destination port number */
)
{
// uint8 status=0;
// uint8 isr=0;
uint16 ret=0;
#ifdef __DEF_IINCHIP_DBG__
printf("sendto()\r\n");
#endif
if (len > getIINCHIP_TxMAX(s)) ret = getIINCHIP_TxMAX(s); // 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;
#ifdef __DEF_IINCHIP_DBG__
printf("%d Fail[%.2x.%.2x.%.2x.%.2x, %.d, %d]\r\n",s, addr[0], addr[1], addr[2], addr[3] , port, len);
printf("Fail[invalid ip,port]\r\n");
#endif
}
else
{
IINCHIP_WRITE(Sn_DIPR0(s),addr[0]);
IINCHIP_WRITE((Sn_DIPR0(s) + 1),addr[1]);
IINCHIP_WRITE((Sn_DIPR0(s) + 2),addr[2]);
IINCHIP_WRITE((Sn_DIPR0(s) + 3),addr[3]);
IINCHIP_WRITE(Sn_DPORT0(s),(uint8)((port & 0xff00) >> 8));
IINCHIP_WRITE((Sn_DPORT0(s) + 1),(uint8)(port & 0x00ff));
// copy data
send_data_processing(s, (uint8 *)buf, ret);
IINCHIP_WRITE(Sn_CR(s),Sn_CR_SEND);
/* +20071122[chungs]:wait to process the command... */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
/* +2008.01 bj */
#ifdef __DEF_IINCHIP_INT__
while ( (getISR(s) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK )
#else
while ( (IINCHIP_READ(Sn_IR(s)) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK )
#endif
{
#ifdef __DEF_IINCHIP_INT__
if (getISR(s) & Sn_IR_TIMEOUT)
#else
if (IINCHIP_READ(Sn_IR(s)) & Sn_IR_TIMEOUT)
#endif
{
#ifdef __DEF_IINCHIP_DBG__
printf("send fail.\r\n");
#endif
/* +2008.01 [bj]: clear interrupt */
#ifdef __DEF_IINCHIP_INT__
putISR(s, getISR(s) & ~(Sn_IR_SEND_OK | Sn_IR_TIMEOUT)); /* clear SEND_OK & TIMEOUT */
#else
IINCHIP_WRITE(Sn_IR(s), (Sn_IR_SEND_OK | Sn_IR_TIMEOUT)); /* clear SEND_OK & TIMEOUT */
#endif
return 0;
}
}
/* +2008.01 bj */
#ifdef __DEF_IINCHIP_INT__
putISR(s, getISR(s) & (~Sn_IR_SEND_OK));
#else
IINCHIP_WRITE(Sn_IR(s), Sn_IR_SEND_OK);
#endif
}
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 recvfrom(
SOCKET s, /**< the socket number */
uint8 * buf, /**< a pointer to copy the data to be received */
uint16 len, /**< the data size to read */
uint8 * addr, /**< a pointer to store the peer's IP address */
uint16 *port /**< a pointer to store the peer's port number. */
)
{
uint8 head[8];
uint16 data_len=0;
uint16 ptr=0;
#ifdef __DEF_IINCHIP_DBG__
printf("recvfrom()\r\n");
#endif
if ( len > 0 )
{
ptr = IINCHIP_READ(Sn_RX_RD0(s));
ptr = ((ptr & 0x00ff) << 8) + IINCHIP_READ(Sn_RX_RD0(s) + 1);
#ifdef __DEF_IINCHIP_DBG__
printf("ISR_RX: rd_ptr : %.4x\r\n", ptr);
#endif
switch (IINCHIP_READ(Sn_MR(s)) & 0x07)
{
case Sn_MR_UDP :
read_data(s, (uint8 *)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];
#ifdef __DEF_IINCHIP_DBG__
printf("UDP msg arrived\r\n");
printf("source Port : %d\r\n", *port);
printf("source IP : %d.%d.%d.%d\r\n", addr[0], addr[1], addr[2], addr[3]);
#endif
read_data(s, (uint8 *)ptr, buf, data_len); // data copy.
ptr += data_len;
IINCHIP_WRITE(Sn_RX_RD0(s),(uint8)((ptr & 0xff00) >> 8));
IINCHIP_WRITE((Sn_RX_RD0(s) + 1),(uint8)(ptr & 0x00ff));
break;
case Sn_MR_IPRAW :
read_data(s, (uint8 *)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];
#ifdef __DEF_IINCHIP_DBG__
printf("IP RAW msg arrived\r\n");
printf("source IP : %d.%d.%d.%d\r\n", addr[0], addr[1], addr[2], addr[3]);
#endif
read_data(s, (uint8 *)ptr, buf, data_len); // data copy.
ptr += data_len;
IINCHIP_WRITE(Sn_RX_RD0(s),(uint8)((ptr & 0xff00) >> 8));
IINCHIP_WRITE((Sn_RX_RD0(s) + 1),(uint8)(ptr & 0x00ff));
break;
case Sn_MR_MACRAW :
read_data(s,(uint8*)ptr,head,2);
ptr+=2;
data_len = head[0];
data_len = (data_len<<8) + head[1] - 2;
read_data(s,(uint8*) ptr,buf,data_len);
ptr += data_len;
IINCHIP_WRITE(Sn_RX_RD0(s),(uint8)((ptr & 0xff00) >> 8));
IINCHIP_WRITE((Sn_RX_RD0(s) + 1),(uint8)(ptr & 0x00ff));
#ifdef __DEF_IINCHIP_DGB__
printf("MAC RAW msg arrived\r\n");
printf("dest mac=%.2X.%.2X.%.2X.%.2X.%.2X.%.2X\r\n",buf[0],buf[1],buf[2],buf[3],buf[4],buf[5]);
printf("src mac=%.2X.%.2X.%.2X.%.2X.%.2X.%.2X\r\n",buf[6],buf[7],buf[8],buf[9],buf[10],buf[11]);
printf("type =%.2X%.2X\r\n",buf[12],buf[13]);
#endif
break;
default :
break;
}
IINCHIP_WRITE(Sn_CR(s),Sn_CR_RECV);
/* +20071122[chungs]:wait to process the command... */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
}
#ifdef __DEF_IINCHIP_DBG__
printf("recvfrom() end ..\r\n");
#endif
return data_len;
}
uint16 igmpsend(SOCKET s, const uint8 * buf, uint16 len)
{
uint8 status=0;
// uint8 isr=0;
uint16 ret=0;
#ifdef __DEF_IINCHIP_DBG__
printf("igmpsend()\r\n");
#endif
if (len > getIINCHIP_TxMAX(s)) ret = getIINCHIP_TxMAX(s); // check size not to exceed MAX size.
else ret = len;
if (ret == 0)
{
;
#ifdef __DEF_IINCHIP_DBG__
printf("%d Fail[%d]\r\n",len);
#endif
}
else
{
// copy data
send_data_processing(s, (uint8 *)buf, ret);
IINCHIP_WRITE(Sn_CR(s),Sn_CR_SEND);
/* +2008.01 bj */
while( IINCHIP_READ(Sn_CR(s)) )
;
/* ------- */
/* +2008.01 bj */
#ifdef __DEF_IINCHIP_INT__
while ( (getISR(s) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK )
#else
while ( (IINCHIP_READ(Sn_IR(s)) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK )
#endif
{
status = IINCHIP_READ(Sn_SR(s));
#ifdef __DEF_IINCHIP_INT__
if (getISR(s) & Sn_IR_TIMEOUT)
#else
if (IINCHIP_READ(Sn_IR(s)) & Sn_IR_TIMEOUT)
#endif
{
#ifdef __DEF_IINCHIP_DBG__
printf("igmpsend fail.\r\n");
#endif
/* in case of igmp, if send fails, then socket closed */
/* if you want change, remove this code. */
close(s);
/* ----- */
return 0;
}
}
/* +2008.01 bj */
#ifdef __DEF_IINCHIP_INT__
putISR(s, getISR(s) & (~Sn_IR_SEND_OK));
#else
IINCHIP_WRITE(Sn_IR(s), Sn_IR_SEND_OK);
#endif
}
return ret;
}
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