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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2012-02-27 20:13:36 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2012-02-27 20:13:36 +0000
commit4a5239de7fff7c51b4175531ce06c263e0c2525a (patch)
tree1c596200bc83d4fe14aa61a261ea765dc9c359d0 /demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/lwipthread.c
parent26c301ec2ccc137cde4bc62440cd4e1b28039edd (diff)
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3996 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/lwipthread.c')
-rw-r--r--demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/lwipthread.c304
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diff --git a/demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/lwipthread.c b/demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/lwipthread.c
deleted file mode 100644
index 298fff139..000000000
--- a/demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/lwipthread.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-/*
- * **** This file incorporates work covered by the following copyright and ****
- * **** permission notice: ****
- *
- * 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>
- *
- */
-
-/**
- * @file lwipthread.c
- * @brief LWIP wrapper thread code.
- * @addtogroup LWIP_THREAD
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-#include "evtimer.h"
-
-#include "lwip/opt.h"
-
-#include "lwip/def.h"
-#include "lwip/mem.h"
-#include "lwip/pbuf.h"
-#include "lwip/sys.h"
-#include <lwip/stats.h>
-#include <lwip/snmp.h>
-#include <lwip/tcpip.h>
-#include "netif/etharp.h"
-#include "netif/ppp_oe.h"
-
-#include "lwipthread.h"
-
-#define PERIODIC_TIMER_ID 1
-#define FRAME_RECEIVED_ID 2
-
-/**
- * Stack area for the LWIP-MAC thread.
- */
-WORKING_AREA(wa_lwip_thread, LWIP_THREAD_STACK_SIZE);
-
-/*
- * Initialization.
- */
-static void low_level_init(struct netif *netif) {
- /* set MAC hardware address length */
- netif->hwaddr_len = ETHARP_HWADDR_LEN;
-
- /* maximum transfer unit */
- netif->mtu = 1500;
-
- /* device capabilities */
- /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
- netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
-
- /* Do whatever else is needed to initialize interface. */
-}
-
-/*
- * Transmits a frame.
- */
-static err_t low_level_output(struct netif *netif, struct pbuf *p) {
- struct pbuf *q;
- MACTransmitDescriptor td;
-
- (void)netif;
- if (macWaitTransmitDescriptor(&ETH1, &td, MS2ST(LWIP_SEND_TIMEOUT)) != RDY_OK)
- return ERR_TIMEOUT;
-
-#if ETH_PAD_SIZE
- pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
-#endif
-
- /* Iterates through the pbuf chain. */
- for(q = p; q != NULL; q = q->next) {
- macWriteTransmitDescriptor(&td, (uint8_t *)q->payload, (size_t)q->len);
- }
- macReleaseTransmitDescriptor(&td);
-
-#if ETH_PAD_SIZE
- pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
-#endif
-
- LINK_STATS_INC(link.xmit);
-
- return ERR_OK;
-}
-
-/*
- * Receives a frame.
- */
-static struct pbuf *low_level_input(struct netif *netif) {
- MACReceiveDescriptor rd;
- struct pbuf *p, *q;
- u16_t len;
-
- (void)netif;
- if (macWaitReceiveDescriptor(&ETH1, &rd, TIME_IMMEDIATE) == RDY_OK) {
- len = (u16_t)rd.size;
-
-#if ETH_PAD_SIZE
- len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
-#endif
-
- /* We allocate a pbuf chain of pbufs from the pool. */
- p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
-
- if (p != NULL) {
-
-#if ETH_PAD_SIZE
- pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
-#endif
-
- /* Iterates through the pbuf chain. */
- for(q = p; q != NULL; q = q->next) {
- macReadReceiveDescriptor(&rd, (uint8_t *)q->payload, (size_t)q->len);
- }
- macReleaseReceiveDescriptor(&rd);
-
-#if ETH_PAD_SIZE
- pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
-#endif
-
- LINK_STATS_INC(link.recv);
- }
- else {
- macReleaseReceiveDescriptor(&rd);
- LINK_STATS_INC(link.memerr);
- LINK_STATS_INC(link.drop);
- }
- return p;
- }
- return NULL;
-}
-
-/*
- * Initialization.
- */
-static err_t ethernetif_init(struct netif *netif) {
-#if LWIP_NETIF_HOSTNAME
- /* Initialize interface hostname */
- netif->hostname = "lwip";
-#endif /* LWIP_NETIF_HOSTNAME */
-
- /*
- * Initialize the snmp variables and counters inside the struct netif.
- * The last argument should be replaced with your link speed, in units
- * of bits per second.
- */
- NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, LWIP_LINK_SPEED);
-
- netif->state = NULL;
- netif->name[0] = LWIP_IFNAME0;
- netif->name[1] = LWIP_IFNAME1;
- /* We directly use etharp_output() here to save a function call.
- * You can instead declare your own function an call etharp_output()
- * from it if you have to do some checks before sending (e.g. if link
- * is available...) */
- netif->output = etharp_output;
- netif->linkoutput = low_level_output;
-
- /* initialize the hardware */
- low_level_init(netif);
-
- return ERR_OK;
-}
-
-/**
- * @brief LWIP handling thread.
- *
- * @param[in] p pointer to a @p lwipthread_opts structure or @p NULL
- * @return The function does not return.
- */
-msg_t lwip_thread(void *p) {
- EvTimer evt;
- EventListener el0, el1;
- struct ip_addr ip, gateway, netmask;
- static struct netif thisif;
- static const MACConfig mac_config = {thisif.hwaddr};
-
- /* Initializes the thing.*/
- sys_init();
- mem_init();
- memp_init();
- pbuf_init();
- netif_init();
- ip_init();
- tcpip_init(NULL, NULL);
-
- /* TCP/IP parameters, runtime or compile time.*/
- if (p) {
- struct lwipthread_opts *opts = p;
- unsigned i;
-
- for (i = 0; i < 6; i++)
- thisif.hwaddr[i] = opts->macaddress[i];
- ip.addr = opts->address;
- gateway.addr = opts->gateway;
- netmask.addr = opts->netmask;
- }
- else {
- thisif.hwaddr[0] = LWIP_ETHADDR_0;
- thisif.hwaddr[1] = LWIP_ETHADDR_1;
- thisif.hwaddr[2] = LWIP_ETHADDR_2;
- thisif.hwaddr[3] = LWIP_ETHADDR_3;
- thisif.hwaddr[4] = LWIP_ETHADDR_4;
- thisif.hwaddr[5] = LWIP_ETHADDR_5;
- LWIP_IPADDR(&ip);
- LWIP_GATEWAY(&gateway);
- LWIP_NETMASK(&netmask);
- }
- macStart(&ETH1, &mac_config);
- netif_add(&thisif, &ip, &netmask, &gateway, NULL, ethernetif_init, tcpip_input);
-
- netif_set_default(&thisif);
- netif_set_up(&thisif);
-
- /* Setup event sources.*/
- evtInit(&evt, S2ST(5));
- evtStart(&evt);
- chEvtRegisterMask(&evt.et_es, &el0, PERIODIC_TIMER_ID);
- chEvtRegisterMask(macGetReceiveEventSource(&ETH1), &el1, FRAME_RECEIVED_ID);
- chEvtAddFlags(PERIODIC_TIMER_ID | FRAME_RECEIVED_ID);
-
- /* Goes to the final priority after initialization.*/
- chThdSetPriority(LWIP_THREAD_PRIORITY);
-
- while (TRUE) {
- eventmask_t mask = chEvtWaitAny(ALL_EVENTS);
- if (mask & PERIODIC_TIMER_ID)
- (void)macPollLinkStatus(&ETH1);
- if (mask & FRAME_RECEIVED_ID) {
- struct pbuf *p;
- while ((p = low_level_input(&thisif)) != NULL) {
- struct eth_hdr *ethhdr = p->payload;
- switch (htons(ethhdr->type)) {
- /* IP or ARP packet? */
- case ETHTYPE_IP:
- case ETHTYPE_ARP:
-#if PPPOE_SUPPORT
- /* PPPoE packet? */
- case ETHTYPE_PPPOEDISC:
- case ETHTYPE_PPPOE:
-#endif /* PPPOE_SUPPORT */
- /* full packet send to tcpip_thread to process */
- if (thisif.input(p, &thisif) == ERR_OK)
- break;
- LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
- default:
- pbuf_free(p);
- }
- }
- }
- }
- return 0;
-}
-
-/** @} */