URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [ethernet/] [lwIP/] [api/] [tcpip.c] - Rev 611
Go to most recent revision | Compare with Previous | Blame | View Log
/* * Copyright (c) 2001-2004 Swedish Institute of Computer Science. * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. * * This file is part of the lwIP TCP/IP stack. * * Author: Adam Dunkels <adam@sics.se> * */ #include "lwip/opt.h" #include "lwip/sys.h" #include "lwip/memp.h" #include "lwip/pbuf.h" #include "lwip/ip.h" #include "lwip/ip_frag.h" #include "lwip/udp.h" #include "lwip/tcp.h" #include "lwip/tcpip.h" static void (* tcpip_init_done)(void *arg) = NULL; static void *tcpip_init_done_arg; static sys_mbox_t mbox; #if LWIP_TCP static int tcpip_tcp_timer_active = 0; static void tcpip_tcp_timer(void *arg) { (void)arg; /* call TCP timer handler */ tcp_tmr(); /* timer still needed? */ if (tcp_active_pcbs || tcp_tw_pcbs) { /* restart timer */ sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); } else { /* disable timer */ tcpip_tcp_timer_active = 0; } } #if !NO_SYS void tcp_timer_needed(void) { /* timer is off but needed again? */ if (!tcpip_tcp_timer_active && (tcp_active_pcbs || tcp_tw_pcbs)) { /* enable and start timer */ tcpip_tcp_timer_active = 1; sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); } } #endif /* !NO_SYS */ #endif /* LWIP_TCP */ #if IP_REASSEMBLY static void ip_timer(void *data) { LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip: ip_reass_tmr()\n")); ip_reass_tmr(); sys_timeout(1000, ip_timer, NULL); } #endif static void tcpip_thread(void *arg) { struct tcpip_msg *msg; (void)arg; ip_init(); #if LWIP_UDP udp_init(); #endif #if LWIP_TCP tcp_init(); #endif #if IP_REASSEMBLY sys_timeout(1000, ip_timer, NULL); #endif if (tcpip_init_done != NULL) { tcpip_init_done(tcpip_init_done_arg); } while (1) { /* MAIN Loop */ sys_mbox_fetch(mbox, (void *)&msg); switch (msg->type) { case TCPIP_MSG_API: LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API message %p\n", (void *)msg)); api_msg_input(msg->msg.apimsg); break; case TCPIP_MSG_INPUT: LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: IP packet %p\n", (void *)msg)); ip_input(msg->msg.inp.p, msg->msg.inp.netif); break; case TCPIP_MSG_CALLBACK: LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: CALLBACK %p\n", (void *)msg)); msg->msg.cb.f(msg->msg.cb.ctx); break; default: break; } memp_free(MEMP_TCPIP_MSG, msg); } } err_t tcpip_input(struct pbuf *p, struct netif *inp) { struct tcpip_msg *msg; msg = memp_malloc(MEMP_TCPIP_MSG); if (msg == NULL) { pbuf_free(p); return ERR_MEM; } msg->type = TCPIP_MSG_INPUT; msg->msg.inp.p = p; msg->msg.inp.netif = inp; sys_mbox_post(mbox, msg); return ERR_OK; } err_t tcpip_callback(void (*f)(void *ctx), void *ctx) { struct tcpip_msg *msg; msg = memp_malloc(MEMP_TCPIP_MSG); if (msg == NULL) { return ERR_MEM; } msg->type = TCPIP_MSG_CALLBACK; msg->msg.cb.f = f; msg->msg.cb.ctx = ctx; sys_mbox_post(mbox, msg); return ERR_OK; } void tcpip_apimsg(struct api_msg *apimsg) { struct tcpip_msg *msg; msg = memp_malloc(MEMP_TCPIP_MSG); if (msg == NULL) { memp_free(MEMP_API_MSG, apimsg); return; } msg->type = TCPIP_MSG_API; msg->msg.apimsg = apimsg; sys_mbox_post(mbox, msg); } void tcpip_init(void (* initfunc)(void *), void *arg) { tcpip_init_done = initfunc; tcpip_init_done_arg = arg; mbox = sys_mbox_new(); sys_thread_new(tcpip_thread, NULL, TCPIP_THREAD_PRIO); }
Go to most recent revision | Compare with Previous | Blame | View Log