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micropython/drivers/wiznet5k/ethernet/socket.c

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//*****************************************************************************
//
//! \file socket.c
//! \brief SOCKET APIs Implements file.
//! \details SOCKET APIs like as Berkeley Socket APIs.
//! \version 1.0.3
//! \date 2013/10/21
//! \par Revision history
//! <2014/05/01> V1.0.3. Refer to M20140501
//! 1. Implicit type casting -> Explicit type casting.
//! 2. replace 0x01 with PACK_REMAINED in recvfrom()
//! 3. Validation a destination ip in connect() & sendto():
//! It occurs a fatal error on converting unint32 address if uint8* addr parameter is not aligned by 4byte address.
//! Copy 4 byte addr value into temporary uint32 variable and then compares it.
//! <2013/12/20> V1.0.2 Refer to M20131220
//! Remove Warning.
//! <2013/11/04> V1.0.1 2nd Release. Refer to "20131104".
//! In sendto(), Add to clear timeout interrupt status (Sn_IR_TIMEOUT)
//! <2013/10/21> 1st Release
//! \author MidnightCow
//! \copyright
//!
//! Copyright (c) 2013, WIZnet Co., LTD.
//! All rights reserved.
//!
//! Redistribution and use in source and binary forms, with or without
//! modification, are permitted provided that the following conditions
//! are met:
//!
//! * Redistributions of source code must retain the above copyright
//! notice, this list of conditions and the following disclaimer.
//! * Redistributions in binary form must reproduce the above copyright
//! notice, this list of conditions and the following disclaimer in the
//! documentation and/or other materials provided with the distribution.
//! * Neither the name of the <ORGANIZATION> nor the names of its
//! contributors may be used to endorse or promote products derived
//! from this software without specific prior written permission.
//!
//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
//! THE POSSIBILITY OF SUCH DAMAGE.
//
//*****************************************************************************
#include "socket.h"
#define SOCK_ANY_PORT_NUM 0xC000;
static uint16_t sock_any_port = SOCK_ANY_PORT_NUM;
static uint16_t sock_io_mode = 0;
static uint16_t sock_is_sending = 0;
static uint16_t sock_remained_size[_WIZCHIP_SOCK_NUM_] = {0,0,};
static uint8_t sock_pack_info[_WIZCHIP_SOCK_NUM_] = {0,};
#if _WIZCHIP_ == 5200
static uint16_t sock_next_rd[_WIZCHIP_SOCK_NUM_] ={0,};
#endif
#define CHECK_SOCKNUM() \
do{ \
if(sn > _WIZCHIP_SOCK_NUM_) return SOCKERR_SOCKNUM; \
}while(0); \
#define CHECK_SOCKMODE(mode) \
do{ \
if((getSn_MR(sn) & 0x0F) != mode) return SOCKERR_SOCKMODE; \
}while(0); \
#define CHECK_SOCKINIT() \
do{ \
if((getSn_SR(sn) != SOCK_INIT)) return SOCKERR_SOCKINIT; \
}while(0); \
#define CHECK_SOCKDATA() \
do{ \
if(len == 0) return SOCKERR_DATALEN; \
}while(0); \
int8_t socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag)
{
CHECK_SOCKNUM();
switch(protocol)
{
case Sn_MR_TCP :
case Sn_MR_UDP :
case Sn_MR_MACRAW :
break;
#if ( _WIZCHIP_ < 5200 )
case Sn_MR_IPRAW :
case Sn_MR_PPPoE :
break;
#endif
default :
return SOCKERR_SOCKMODE;
}
if((flag & 0x06) != 0) return SOCKERR_SOCKFLAG;
#if _WIZCHIP_ == 5200
if(flag & 0x10) return SOCKERR_SOCKFLAG;
#endif
if(flag != 0)
{
switch(protocol)
{
case Sn_MR_TCP:
if((flag & (SF_TCP_NODELAY|SF_IO_NONBLOCK))==0) return SOCKERR_SOCKFLAG;
break;
case Sn_MR_UDP:
if(flag & SF_IGMP_VER2)
{
if((flag & SF_MULTI_ENABLE)==0) return SOCKERR_SOCKFLAG;
}
#if _WIZCHIP_ == 5500
if(flag & SF_UNI_BLOCK)
{
if((flag & SF_MULTI_ENABLE) == 0) return SOCKERR_SOCKFLAG;
}
#endif
break;
default:
break;
}
}
close(sn);
setSn_MR(sn, (protocol | (flag & 0xF0)));
if(!port)
{
port = sock_any_port++;
if(sock_any_port == 0xFFF0) sock_any_port = SOCK_ANY_PORT_NUM;
}
setSn_PORT(sn,port);
setSn_CR(sn,Sn_CR_OPEN);
while(getSn_CR(sn));
sock_io_mode |= ((flag & SF_IO_NONBLOCK) << sn);
sock_is_sending &= ~(1<<sn);
sock_remained_size[sn] = 0;
sock_pack_info[sn] = 0;
while(getSn_SR(sn) == SOCK_CLOSED);
return (int8_t)sn;
}
int8_t close(uint8_t sn)
{
CHECK_SOCKNUM();
setSn_CR(sn,Sn_CR_CLOSE);
/* wait to process the command... */
while( getSn_CR(sn) );
/* clear all interrupt of the socket. */
setSn_IR(sn, 0xFF);
sock_is_sending &= ~(1<<sn);
sock_remained_size[sn] = 0;
sock_pack_info[sn] = 0;
while(getSn_SR(sn) != SOCK_CLOSED);
return SOCK_OK;
}
int8_t listen(uint8_t sn)
{
CHECK_SOCKNUM();
CHECK_SOCKMODE(Sn_MR_TCP);
CHECK_SOCKINIT();
setSn_CR(sn,Sn_CR_LISTEN);
while(getSn_CR(sn));
while(getSn_SR(sn) != SOCK_LISTEN)
{
if(getSn_CR(sn) == SOCK_CLOSED)
{
close(sn);
return SOCKERR_SOCKCLOSED;
}
}
return SOCK_OK;
}
int8_t connect(uint8_t sn, uint8_t * addr, uint16_t port)
{
CHECK_SOCKNUM();
CHECK_SOCKMODE(Sn_MR_TCP);
CHECK_SOCKINIT();
//M20140501 : For avoiding fatal error on memory align mismatched
//if( *((uint32_t*)addr) == 0xFFFFFFFF || *((uint32_t*)addr) == 0) return SOCKERR_IPINVALID;
{
uint32_t taddr;
taddr = ((uint32_t)addr[0] & 0x000000FF);
taddr = (taddr << 8) + ((uint32_t)addr[1] & 0x000000FF);
taddr = (taddr << 8) + ((uint32_t)addr[2] & 0x000000FF);
taddr = (taddr << 8) + ((uint32_t)addr[3] & 0x000000FF);
if (taddr == 0xFFFFFFFF || taddr == 0) return SOCKERR_IPINVALID;
}
//
if(port == 0) return SOCKERR_PORTZERO;
setSn_DIPR(sn,addr);
setSn_DPORT(sn,port);
#if _WIZCHIP_ == 5200 // for W5200 ARP errata
setSUBR(0);
#endif
setSn_CR(sn,Sn_CR_CONNECT);
while(getSn_CR(sn));
if(sock_io_mode & (1<<sn)) return SOCK_BUSY;
while(getSn_SR(sn) != SOCK_ESTABLISHED)
{
if (getSn_IR(sn) & Sn_IR_TIMEOUT)
{
setSn_IR(sn, Sn_IR_TIMEOUT);
#if _WIZCHIP_ == 5200 // for W5200 ARP errata
setSUBR((uint8_t*)"\x00\x00\x00\x00");
#endif
return SOCKERR_TIMEOUT;
}
}
#if _WIZCHIP_ == 5200 // for W5200 ARP errata
setSUBR((uint8_t*)"\x00\x00\x00\x00");
#endif
return SOCK_OK;
}
int8_t disconnect(uint8_t sn)
{
CHECK_SOCKNUM();
CHECK_SOCKMODE(Sn_MR_TCP);
setSn_CR(sn,Sn_CR_DISCON);
/* wait to process the command... */
while(getSn_CR(sn));
sock_is_sending &= ~(1<<sn);
if(sock_io_mode & (1<<sn)) return SOCK_BUSY;
while(getSn_SR(sn) != SOCK_CLOSED)
{
if(getSn_IR(sn) & Sn_IR_TIMEOUT)
{
close(sn);
return SOCKERR_TIMEOUT;
}
}
return SOCK_OK;
}
int32_t send(uint8_t sn, uint8_t * buf, uint16_t len)
{
uint8_t tmp=0;
uint16_t freesize=0;
CHECK_SOCKNUM();
CHECK_SOCKMODE(Sn_MR_TCP);
CHECK_SOCKDATA();
tmp = getSn_SR(sn);
if(tmp != SOCK_ESTABLISHED && tmp != SOCK_CLOSE_WAIT) return SOCKERR_SOCKSTATUS;
if( sock_is_sending & (1<<sn) )
{
tmp = getSn_IR(sn);
if(tmp & Sn_IR_SENDOK)
{
setSn_IR(sn, Sn_IR_SENDOK);
#if _WZICHIP_ == 5200
if(getSn_TX_RD(sn) != sock_next_rd[sn])
{
setSn_CR(sn,Sn_CR_SEND);
while(getSn_CR(sn));
return SOCKERR_BUSY;
}
#endif
sock_is_sending &= ~(1<<sn);
}
else if(tmp & Sn_IR_TIMEOUT)
{
close(sn);
return SOCKERR_TIMEOUT;
}
else return SOCK_BUSY;
}
freesize = getSn_TxMAX(sn);
if (len > freesize) len = freesize; // check size not to exceed MAX size.
while(1)
{
freesize = getSn_TX_FSR(sn);
tmp = getSn_SR(sn);
if ((tmp != SOCK_ESTABLISHED) && (tmp != SOCK_CLOSE_WAIT))
{
close(sn);
return SOCKERR_SOCKSTATUS;
}
if( (sock_io_mode & (1<<sn)) && (len > freesize) ) return SOCK_BUSY;
if(len <= freesize) break;
}
wiz_send_data(sn, buf, len);
#if _WIZCHIP_ == 5200
sock_next_rd[sn] = getSn_TX_RD(sn) + len;
#endif
setSn_CR(sn,Sn_CR_SEND);
/* wait to process the command... */
while(getSn_CR(sn));
sock_is_sending |= (1 << sn);
return len;
}
int32_t recv(uint8_t sn, uint8_t * buf, uint16_t len)
{
uint8_t tmp = 0;
uint16_t recvsize = 0;
CHECK_SOCKNUM();
CHECK_SOCKMODE(Sn_MR_TCP);
CHECK_SOCKDATA();
recvsize = getSn_RxMAX(sn);
if(recvsize < len) len = recvsize;
while(1)
{
recvsize = getSn_RX_RSR(sn);
tmp = getSn_SR(sn);
if (tmp != SOCK_ESTABLISHED)
{
if(tmp == SOCK_CLOSE_WAIT)
{
if(recvsize != 0) break;
else if(getSn_TX_FSR(sn) == getSn_TxMAX(sn))
{
close(sn);
return SOCKERR_SOCKSTATUS;
}
}
else
{
close(sn);
return SOCKERR_SOCKSTATUS;
}
}
if((sock_io_mode & (1<<sn)) && (recvsize == 0)) return SOCK_BUSY;
if(recvsize != 0) break;
};
if(recvsize < len) len = recvsize;
wiz_recv_data(sn, buf, len);
setSn_CR(sn,Sn_CR_RECV);
while(getSn_CR(sn));
return len;
}
int32_t sendto(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t port)
{
uint8_t tmp = 0;
uint16_t freesize = 0;
CHECK_SOCKNUM();
switch(getSn_MR(sn) & 0x0F)
{
case Sn_MR_UDP:
case Sn_MR_MACRAW:
break;
default:
return SOCKERR_SOCKMODE;
}
CHECK_SOCKDATA();
//M20140501 : For avoiding fatal error on memory align mismatched
//if(*((uint32_t*)addr) == 0) return SOCKERR_IPINVALID;
{
uint32_t taddr;
taddr = ((uint32_t)addr[0]) & 0x000000FF;
taddr = (taddr << 8) + ((uint32_t)addr[1] & 0x000000FF);
taddr = (taddr << 8) + ((uint32_t)addr[2] & 0x000000FF);
taddr = (taddr << 8) + ((uint32_t)addr[3] & 0x000000FF);
if (taddr == 0xFFFFFFFF || taddr == 0) return SOCKERR_IPINVALID;
}
//
if(port == 0) return SOCKERR_PORTZERO;
tmp = getSn_SR(sn);
if(tmp != SOCK_MACRAW && tmp != SOCK_UDP) return SOCKERR_SOCKSTATUS;
setSn_DIPR(sn,addr);
setSn_DPORT(sn,port);
freesize = getSn_TxMAX(sn);
if (len > freesize) len = freesize; // check size not to exceed MAX size.
while(1)
{
freesize = getSn_TX_FSR(sn);
if(getSn_SR(sn) == SOCK_CLOSED) return SOCKERR_SOCKCLOSED;
if( (sock_io_mode & (1<<sn)) && (len > freesize) ) return SOCK_BUSY;
if(len <= freesize) break;
};
wiz_send_data(sn, buf, len);
#if _WIZCHIP_ == 5200 // for W5200 ARP errata
setSUBR(0);
#endif
setSn_CR(sn,Sn_CR_SEND);
/* wait to process the command... */
while(getSn_CR(sn));
#if _WIZCHIP_ == 5200 // for W5200 ARP errata
setSUBR((uint8_t*)"\x00\x00\x00\x00");
#endif
while(1)
{
tmp = getSn_IR(sn);
if(tmp & Sn_IR_SENDOK)
{
setSn_IR(sn, Sn_IR_SENDOK);
break;
}
//M:20131104
//else if(tmp & Sn_IR_TIMEOUT) return SOCKERR_TIMEOUT;
else if(tmp & Sn_IR_TIMEOUT)
{
setSn_IR(sn, Sn_IR_TIMEOUT);
return SOCKERR_TIMEOUT;
}
////////////
}
return len;
}
int32_t recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t *port)
{
uint8_t mr;
uint8_t head[8];
uint16_t pack_len=0;
CHECK_SOCKNUM();
//CHECK_SOCKMODE(Sn_MR_UDP);
switch((mr=getSn_MR(sn)) & 0x0F)
{
case Sn_MR_UDP:
case Sn_MR_MACRAW:
break;
#if ( _WIZCHIP_ < 5200 )
case Sn_MR_IPRAW:
case Sn_MR_PPPoE:
break;
#endif
default:
return SOCKERR_SOCKMODE;
}
CHECK_SOCKDATA();
if(sock_remained_size[sn] == 0)
{
while(1)
{
pack_len = getSn_RX_RSR(sn);
if(getSn_SR(sn) == SOCK_CLOSED) return SOCKERR_SOCKCLOSED;
if( (sock_io_mode & (1<<sn)) && (pack_len == 0) ) return SOCK_BUSY;
if(pack_len != 0) break;
};
}
sock_pack_info[sn] = PACK_COMPLETED;
switch (mr & 0x07)
{
case Sn_MR_UDP :
if(sock_remained_size[sn] == 0)
{
wiz_recv_data(sn, head, 8);
setSn_CR(sn,Sn_CR_RECV);
while(getSn_CR(sn));
// read peer's IP address, port number & packet length
addr[0] = head[0];
addr[1] = head[1];
addr[2] = head[2];
addr[3] = head[3];
*port = head[4];
*port = (*port << 8) + head[5];
sock_remained_size[sn] = head[6];
sock_remained_size[sn] = (sock_remained_size[sn] << 8) + head[7];
sock_pack_info[sn] = PACK_FIRST;
}
if(len < sock_remained_size[sn]) pack_len = len;
else pack_len = sock_remained_size[sn];
//
// Need to packet length check (default 1472)
//
wiz_recv_data(sn, buf, pack_len); // data copy.
break;
case Sn_MR_MACRAW :
if(sock_remained_size[sn] == 0)
{
wiz_recv_data(sn, head, 2);
setSn_CR(sn,Sn_CR_RECV);
while(getSn_CR(sn));
// read peer's IP address, port number & packet length
sock_remained_size[sn] = head[0];
sock_remained_size[sn] = (sock_remained_size[sn] <<8) + head[1];
if(sock_remained_size[sn] > 1514)
{
close(sn);
return SOCKFATAL_PACKLEN;
}
sock_pack_info[sn] = PACK_FIRST;
}
if(len < sock_remained_size[sn]) pack_len = len;
else pack_len = sock_remained_size[sn];
wiz_recv_data(sn,buf,pack_len);
break;
#if ( _WIZCHIP_ < 5200 )
case Sn_MR_IPRAW:
if(sock_remained_size[sn] == 0)
{
wiz_recv_data(sn, head, 6);
setSn_CR(sn,Sn_CR_RECV);
while(getSn_CR(sn));
addr[0] = head[0];
addr[1] = head[1];
addr[2] = head[2];
addr[3] = head[3];
sock_remained_size[sn] = head[4];
sock_remaiend_size[sn] = (sock_remained_size[sn] << 8) + head[5];
sock_pack_info[sn] = PACK_FIRST;
}
//
// Need to packet length check
//
if(len < sock_remained_size[sn]) pack_len = len;
else pack_len = sock_remained_size[sn];
wiz_recv_data(sn, buf, pack_len); // data copy.
break;
#endif
default:
wiz_recv_ignore(sn, pack_len); // data copy.
sock_remained_size[sn] = pack_len;
break;
}
setSn_CR(sn,Sn_CR_RECV);
/* wait to process the command... */
while(getSn_CR(sn)) ;
sock_remained_size[sn] -= pack_len;
//M20140501 : replace 0x01 with PACK_REMAINED
//if(sock_remained_size[sn] != 0) sock_pack_info[sn] |= 0x01;
if(sock_remained_size[sn] != 0) sock_pack_info[sn] |= PACK_REMAINED;
//
return pack_len;
}
int8_t ctlsocket(uint8_t sn, ctlsock_type cstype, void* arg)
{
uint8_t tmp = 0;
CHECK_SOCKNUM();
switch(cstype)
{
case CS_SET_IOMODE:
tmp = *((uint8_t*)arg);
if(tmp == SOCK_IO_NONBLOCK) sock_io_mode |= (1<<sn);
else if(tmp == SOCK_IO_BLOCK) sock_io_mode &= ~(1<<sn);
else return SOCKERR_ARG;
break;
case CS_GET_IOMODE:
//M20140501 : implict type casting -> explict type casting
//*((uint8_t*)arg) = (sock_io_mode >> sn) & 0x0001;
*((uint8_t*)arg) = (uint8_t)((sock_io_mode >> sn) & 0x0001);
//
break;
case CS_GET_MAXTXBUF:
*((uint16_t*)arg) = getSn_TxMAX(sn);
break;
case CS_GET_MAXRXBUF:
*((uint16_t*)arg) = getSn_RxMAX(sn);
break;
case CS_CLR_INTERRUPT:
if( (*(uint8_t*)arg) > SIK_ALL) return SOCKERR_ARG;
setSn_IR(sn,*(uint8_t*)arg);
break;
case CS_GET_INTERRUPT:
*((uint8_t*)arg) = getSn_IR(sn);
break;
case CS_SET_INTMASK:
if( (*(uint8_t*)arg) > SIK_ALL) return SOCKERR_ARG;
setSn_IMR(sn,*(uint8_t*)arg);
break;
case CS_GET_INTMASK:
*((uint8_t*)arg) = getSn_IMR(sn);
default:
return SOCKERR_ARG;
}
return SOCK_OK;
}
int8_t setsockopt(uint8_t sn, sockopt_type sotype, void* arg)
{
// M20131220 : Remove warning
//uint8_t tmp;
CHECK_SOCKNUM();
switch(sotype)
{
case SO_TTL:
setSn_TTL(sn,*(uint8_t*)arg);
break;
case SO_TOS:
setSn_TOS(sn,*(uint8_t*)arg);
break;
case SO_MSS:
setSn_MSSR(sn,*(uint16_t*)arg);
break;
case SO_DESTIP:
setSn_DIPR(sn, (uint8_t*)arg);
break;
case SO_DESTPORT:
setSn_DPORT(sn, *(uint16_t*)arg);
break;
#if _WIZCHIP_ != 5100
case SO_KEEPALIVESEND:
CHECK_SOCKMODE(Sn_MR_TCP);
#if _WIZCHIP_ > 5200
if(getSn_KPALVTR(sn) != 0) return SOCKERR_SOCKOPT;
#endif
setSn_CR(sn,Sn_CR_SEND_KEEP);
while(getSn_CR(sn) != 0)
{
// M20131220
//if ((tmp = getSn_IR(sn)) & Sn_IR_TIMEOUT)
if (getSn_IR(sn) & Sn_IR_TIMEOUT)
{
setSn_IR(sn, Sn_IR_TIMEOUT);
return SOCKERR_TIMEOUT;
}
}
break;
#if _WIZCHIP_ > 5200
case SO_KEEPALIVEAUTO:
CHECK_SOCKMODE(Sn_MR_TCP);
setSn_KPALVTR(sn,*(uint8_t*)arg);
break;
#endif
#endif
default:
return SOCKERR_ARG;
}
return SOCK_OK;
}
int8_t getsockopt(uint8_t sn, sockopt_type sotype, void* arg)
{
CHECK_SOCKNUM();
switch(sotype)
{
case SO_FLAG:
*(uint8_t*)arg = getSn_MR(sn) & 0xF0;
break;
case SO_TTL:
*(uint8_t*) arg = getSn_TTL(sn);
break;
case SO_TOS:
*(uint8_t*) arg = getSn_TOS(sn);
break;
case SO_MSS:
*(uint8_t*) arg = getSn_MSSR(sn);
case SO_DESTIP:
getSn_DIPR(sn, (uint8_t*)arg);
break;
case SO_DESTPORT:
*(uint16_t*) arg = getSn_DPORT(sn);
break;
#if _WIZCHIP_ > 5200
case SO_KEEPALIVEAUTO:
CHECK_SOCKMODE(Sn_MR_TCP);
*(uint16_t*) arg = getSn_KPALVTR(sn);
break;
#endif
case SO_SENDBUF:
*(uint16_t*) arg = getSn_TX_FSR(sn);
case SO_RECVBUF:
*(uint16_t*) arg = getSn_RX_RSR(sn);
case SO_STATUS:
*(uint8_t*) arg = getSn_SR(sn);
break;
case SO_REMAINSIZE:
if(getSn_MR(sn) == Sn_MR_TCP)
*(uint16_t*)arg = getSn_RX_RSR(sn);
else
*(uint16_t*)arg = sock_remained_size[sn];
break;
case SO_PACKINFO:
CHECK_SOCKMODE(Sn_MR_TCP);
*(uint8_t*)arg = sock_pack_info[sn];
break;
default:
return SOCKERR_SOCKOPT;
}
return SOCK_OK;
}
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