CK Sin / Mbed 2 deprecated Ethernetwebsocket

Ethernetwebsoc

Dependencies:   C12832_lcd LM75B WebSocketClient mbed-rtos mbed Socket lwip-eth lwip-sys lwip

EthernetInterface/lwip/api/tcpip.c@0:0ed2a7c7190c, 2013-05-31 (annotated)

Committer:
GordonSin
Date:
Fri May 31 04:09:54 2013 +0000
Revision:
0:0ed2a7c7190c
31/5/2013;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GordonSin 0:0ed2a7c7190c 1 /**
GordonSin 0:0ed2a7c7190c 2 * @file
GordonSin 0:0ed2a7c7190c 3 * Sequential API Main thread module
GordonSin 0:0ed2a7c7190c 4 *
GordonSin 0:0ed2a7c7190c 5 */
GordonSin 0:0ed2a7c7190c 6
GordonSin 0:0ed2a7c7190c 7 /*
GordonSin 0:0ed2a7c7190c 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
GordonSin 0:0ed2a7c7190c 9 * All rights reserved.
GordonSin 0:0ed2a7c7190c 10 *
GordonSin 0:0ed2a7c7190c 11 * Redistribution and use in source and binary forms, with or without modification,
GordonSin 0:0ed2a7c7190c 12 * are permitted provided that the following conditions are met:
GordonSin 0:0ed2a7c7190c 13 *
GordonSin 0:0ed2a7c7190c 14 * 1. Redistributions of source code must retain the above copyright notice,
GordonSin 0:0ed2a7c7190c 15 * this list of conditions and the following disclaimer.
GordonSin 0:0ed2a7c7190c 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
GordonSin 0:0ed2a7c7190c 17 * this list of conditions and the following disclaimer in the documentation
GordonSin 0:0ed2a7c7190c 18 * and/or other materials provided with the distribution.
GordonSin 0:0ed2a7c7190c 19 * 3. The name of the author may not be used to endorse or promote products
GordonSin 0:0ed2a7c7190c 20 * derived from this software without specific prior written permission.
GordonSin 0:0ed2a7c7190c 21 *
GordonSin 0:0ed2a7c7190c 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
GordonSin 0:0ed2a7c7190c 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
GordonSin 0:0ed2a7c7190c 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
GordonSin 0:0ed2a7c7190c 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
GordonSin 0:0ed2a7c7190c 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
GordonSin 0:0ed2a7c7190c 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
GordonSin 0:0ed2a7c7190c 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
GordonSin 0:0ed2a7c7190c 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
GordonSin 0:0ed2a7c7190c 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
GordonSin 0:0ed2a7c7190c 31 * OF SUCH DAMAGE.
GordonSin 0:0ed2a7c7190c 32 *
GordonSin 0:0ed2a7c7190c 33 * This file is part of the lwIP TCP/IP stack.
GordonSin 0:0ed2a7c7190c 34 *
GordonSin 0:0ed2a7c7190c 35 * Author: Adam Dunkels <adam@sics.se>
GordonSin 0:0ed2a7c7190c 36 *
GordonSin 0:0ed2a7c7190c 37 */
GordonSin 0:0ed2a7c7190c 38
GordonSin 0:0ed2a7c7190c 39 #include "lwip/opt.h"
GordonSin 0:0ed2a7c7190c 40
GordonSin 0:0ed2a7c7190c 41 #if !NO_SYS /* don't build if not configured for use in lwipopts.h */
GordonSin 0:0ed2a7c7190c 42
GordonSin 0:0ed2a7c7190c 43 #include "lwip/sys.h"
GordonSin 0:0ed2a7c7190c 44 #include "lwip/memp.h"
GordonSin 0:0ed2a7c7190c 45 #include "lwip/mem.h"
GordonSin 0:0ed2a7c7190c 46 #include "lwip/pbuf.h"
GordonSin 0:0ed2a7c7190c 47 #include "lwip/tcpip.h"
GordonSin 0:0ed2a7c7190c 48 #include "lwip/init.h"
GordonSin 0:0ed2a7c7190c 49 #include "netif/etharp.h"
GordonSin 0:0ed2a7c7190c 50 #include "netif/ppp_oe.h"
GordonSin 0:0ed2a7c7190c 51
GordonSin 0:0ed2a7c7190c 52 /* global variables */
GordonSin 0:0ed2a7c7190c 53 static tcpip_init_done_fn tcpip_init_done;
GordonSin 0:0ed2a7c7190c 54 static void *tcpip_init_done_arg;
GordonSin 0:0ed2a7c7190c 55 static sys_mbox_t mbox;
GordonSin 0:0ed2a7c7190c 56
GordonSin 0:0ed2a7c7190c 57 #if LWIP_TCPIP_CORE_LOCKING
GordonSin 0:0ed2a7c7190c 58 /** The global semaphore to lock the stack. */
GordonSin 0:0ed2a7c7190c 59 sys_mutex_t lock_tcpip_core;
GordonSin 0:0ed2a7c7190c 60 #endif /* LWIP_TCPIP_CORE_LOCKING */
GordonSin 0:0ed2a7c7190c 61
GordonSin 0:0ed2a7c7190c 62
GordonSin 0:0ed2a7c7190c 63 /**
GordonSin 0:0ed2a7c7190c 64 * The main lwIP thread. This thread has exclusive access to lwIP core functions
GordonSin 0:0ed2a7c7190c 65 * (unless access to them is not locked). Other threads communicate with this
GordonSin 0:0ed2a7c7190c 66 * thread using message boxes.
GordonSin 0:0ed2a7c7190c 67 *
GordonSin 0:0ed2a7c7190c 68 * It also starts all the timers to make sure they are running in the right
GordonSin 0:0ed2a7c7190c 69 * thread context.
GordonSin 0:0ed2a7c7190c 70 *
GordonSin 0:0ed2a7c7190c 71 * @param arg unused argument
GordonSin 0:0ed2a7c7190c 72 */
GordonSin 0:0ed2a7c7190c 73 static void
GordonSin 0:0ed2a7c7190c 74 tcpip_thread(void *arg)
GordonSin 0:0ed2a7c7190c 75 {
GordonSin 0:0ed2a7c7190c 76 struct tcpip_msg *msg;
GordonSin 0:0ed2a7c7190c 77 LWIP_UNUSED_ARG(arg);
GordonSin 0:0ed2a7c7190c 78
GordonSin 0:0ed2a7c7190c 79 if (tcpip_init_done != NULL) {
GordonSin 0:0ed2a7c7190c 80 tcpip_init_done(tcpip_init_done_arg);
GordonSin 0:0ed2a7c7190c 81 }
GordonSin 0:0ed2a7c7190c 82
GordonSin 0:0ed2a7c7190c 83 LOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 84 while (1) { /* MAIN Loop */
GordonSin 0:0ed2a7c7190c 85 UNLOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 86 LWIP_TCPIP_THREAD_ALIVE();
GordonSin 0:0ed2a7c7190c 87 /* wait for a message, timeouts are processed while waiting */
GordonSin 0:0ed2a7c7190c 88 sys_timeouts_mbox_fetch(&mbox, (void **)&msg);
GordonSin 0:0ed2a7c7190c 89 LOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 90 switch (msg->type) {
GordonSin 0:0ed2a7c7190c 91 #if LWIP_NETCONN
GordonSin 0:0ed2a7c7190c 92 case TCPIP_MSG_API:
GordonSin 0:0ed2a7c7190c 93 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API message %p\n", (void *)msg));
GordonSin 0:0ed2a7c7190c 94 msg->msg.apimsg->function(&(msg->msg.apimsg->msg));
GordonSin 0:0ed2a7c7190c 95 break;
GordonSin 0:0ed2a7c7190c 96 #endif /* LWIP_NETCONN */
GordonSin 0:0ed2a7c7190c 97
GordonSin 0:0ed2a7c7190c 98 #if !LWIP_TCPIP_CORE_LOCKING_INPUT
GordonSin 0:0ed2a7c7190c 99 case TCPIP_MSG_INPKT:
GordonSin 0:0ed2a7c7190c 100 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: PACKET %p\n", (void *)msg));
GordonSin 0:0ed2a7c7190c 101 #if LWIP_ETHERNET
GordonSin 0:0ed2a7c7190c 102 if (msg->msg.inp.netif->flags & (NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET)) {
GordonSin 0:0ed2a7c7190c 103 ethernet_input(msg->msg.inp.p, msg->msg.inp.netif);
GordonSin 0:0ed2a7c7190c 104 } else
GordonSin 0:0ed2a7c7190c 105 #endif /* LWIP_ETHERNET */
GordonSin 0:0ed2a7c7190c 106 {
GordonSin 0:0ed2a7c7190c 107 ip_input(msg->msg.inp.p, msg->msg.inp.netif);
GordonSin 0:0ed2a7c7190c 108 }
GordonSin 0:0ed2a7c7190c 109 memp_free(MEMP_TCPIP_MSG_INPKT, msg);
GordonSin 0:0ed2a7c7190c 110 break;
GordonSin 0:0ed2a7c7190c 111 #endif /* LWIP_TCPIP_CORE_LOCKING_INPUT */
GordonSin 0:0ed2a7c7190c 112
GordonSin 0:0ed2a7c7190c 113 #if LWIP_NETIF_API
GordonSin 0:0ed2a7c7190c 114 case TCPIP_MSG_NETIFAPI:
GordonSin 0:0ed2a7c7190c 115 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: Netif API message %p\n", (void *)msg));
GordonSin 0:0ed2a7c7190c 116 msg->msg.netifapimsg->function(&(msg->msg.netifapimsg->msg));
GordonSin 0:0ed2a7c7190c 117 break;
GordonSin 0:0ed2a7c7190c 118 #endif /* LWIP_NETIF_API */
GordonSin 0:0ed2a7c7190c 119
GordonSin 0:0ed2a7c7190c 120 case TCPIP_MSG_CALLBACK:
GordonSin 0:0ed2a7c7190c 121 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: CALLBACK %p\n", (void *)msg));
GordonSin 0:0ed2a7c7190c 122 msg->msg.cb.function(msg->msg.cb.ctx);
GordonSin 0:0ed2a7c7190c 123 memp_free(MEMP_TCPIP_MSG_API, msg);
GordonSin 0:0ed2a7c7190c 124 break;
GordonSin 0:0ed2a7c7190c 125
GordonSin 0:0ed2a7c7190c 126 #if LWIP_TCPIP_TIMEOUT
GordonSin 0:0ed2a7c7190c 127 case TCPIP_MSG_TIMEOUT:
GordonSin 0:0ed2a7c7190c 128 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: TIMEOUT %p\n", (void *)msg));
GordonSin 0:0ed2a7c7190c 129 sys_timeout(msg->msg.tmo.msecs, msg->msg.tmo.h, msg->msg.tmo.arg);
GordonSin 0:0ed2a7c7190c 130 memp_free(MEMP_TCPIP_MSG_API, msg);
GordonSin 0:0ed2a7c7190c 131 break;
GordonSin 0:0ed2a7c7190c 132 case TCPIP_MSG_UNTIMEOUT:
GordonSin 0:0ed2a7c7190c 133 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: UNTIMEOUT %p\n", (void *)msg));
GordonSin 0:0ed2a7c7190c 134 sys_untimeout(msg->msg.tmo.h, msg->msg.tmo.arg);
GordonSin 0:0ed2a7c7190c 135 memp_free(MEMP_TCPIP_MSG_API, msg);
GordonSin 0:0ed2a7c7190c 136 break;
GordonSin 0:0ed2a7c7190c 137 #endif /* LWIP_TCPIP_TIMEOUT */
GordonSin 0:0ed2a7c7190c 138
GordonSin 0:0ed2a7c7190c 139 default:
GordonSin 0:0ed2a7c7190c 140 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: invalid message: %d\n", msg->type));
GordonSin 0:0ed2a7c7190c 141 LWIP_ASSERT("tcpip_thread: invalid message", 0);
GordonSin 0:0ed2a7c7190c 142 break;
GordonSin 0:0ed2a7c7190c 143 }
GordonSin 0:0ed2a7c7190c 144 }
GordonSin 0:0ed2a7c7190c 145 }
GordonSin 0:0ed2a7c7190c 146
GordonSin 0:0ed2a7c7190c 147 /**
GordonSin 0:0ed2a7c7190c 148 * Pass a received packet to tcpip_thread for input processing
GordonSin 0:0ed2a7c7190c 149 *
GordonSin 0:0ed2a7c7190c 150 * @param p the received packet, p->payload pointing to the Ethernet header or
GordonSin 0:0ed2a7c7190c 151 * to an IP header (if inp doesn't have NETIF_FLAG_ETHARP or
GordonSin 0:0ed2a7c7190c 152 * NETIF_FLAG_ETHERNET flags)
GordonSin 0:0ed2a7c7190c 153 * @param inp the network interface on which the packet was received
GordonSin 0:0ed2a7c7190c 154 */
GordonSin 0:0ed2a7c7190c 155 err_t
GordonSin 0:0ed2a7c7190c 156 tcpip_input(struct pbuf *p, struct netif *inp)
GordonSin 0:0ed2a7c7190c 157 {
GordonSin 0:0ed2a7c7190c 158 #if LWIP_TCPIP_CORE_LOCKING_INPUT
GordonSin 0:0ed2a7c7190c 159 err_t ret;
GordonSin 0:0ed2a7c7190c 160 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_input: PACKET %p/%p\n", (void *)p, (void *)inp));
GordonSin 0:0ed2a7c7190c 161 LOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 162 #if LWIP_ETHERNET
GordonSin 0:0ed2a7c7190c 163 if (inp->flags & (NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET)) {
GordonSin 0:0ed2a7c7190c 164 ret = ethernet_input(p, inp);
GordonSin 0:0ed2a7c7190c 165 } else
GordonSin 0:0ed2a7c7190c 166 #endif /* LWIP_ETHERNET */
GordonSin 0:0ed2a7c7190c 167 {
GordonSin 0:0ed2a7c7190c 168 ret = ip_input(p, inp);
GordonSin 0:0ed2a7c7190c 169 }
GordonSin 0:0ed2a7c7190c 170 UNLOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 171 return ret;
GordonSin 0:0ed2a7c7190c 172 #else /* LWIP_TCPIP_CORE_LOCKING_INPUT */
GordonSin 0:0ed2a7c7190c 173 struct tcpip_msg *msg;
GordonSin 0:0ed2a7c7190c 174
GordonSin 0:0ed2a7c7190c 175 if (sys_mbox_valid(&mbox)) {
GordonSin 0:0ed2a7c7190c 176 msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_INPKT);
GordonSin 0:0ed2a7c7190c 177 if (msg == NULL) {
GordonSin 0:0ed2a7c7190c 178 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 179 }
GordonSin 0:0ed2a7c7190c 180
GordonSin 0:0ed2a7c7190c 181 msg->type = TCPIP_MSG_INPKT;
GordonSin 0:0ed2a7c7190c 182 msg->msg.inp.p = p;
GordonSin 0:0ed2a7c7190c 183 msg->msg.inp.netif = inp;
GordonSin 0:0ed2a7c7190c 184 if (sys_mbox_trypost(&mbox, msg) != ERR_OK) {
GordonSin 0:0ed2a7c7190c 185 memp_free(MEMP_TCPIP_MSG_INPKT, msg);
GordonSin 0:0ed2a7c7190c 186 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 187 }
GordonSin 0:0ed2a7c7190c 188 return ERR_OK;
GordonSin 0:0ed2a7c7190c 189 }
GordonSin 0:0ed2a7c7190c 190 return ERR_VAL;
GordonSin 0:0ed2a7c7190c 191 #endif /* LWIP_TCPIP_CORE_LOCKING_INPUT */
GordonSin 0:0ed2a7c7190c 192 }
GordonSin 0:0ed2a7c7190c 193
GordonSin 0:0ed2a7c7190c 194 /**
GordonSin 0:0ed2a7c7190c 195 * Call a specific function in the thread context of
GordonSin 0:0ed2a7c7190c 196 * tcpip_thread for easy access synchronization.
GordonSin 0:0ed2a7c7190c 197 * A function called in that way may access lwIP core code
GordonSin 0:0ed2a7c7190c 198 * without fearing concurrent access.
GordonSin 0:0ed2a7c7190c 199 *
GordonSin 0:0ed2a7c7190c 200 * @param f the function to call
GordonSin 0:0ed2a7c7190c 201 * @param ctx parameter passed to f
GordonSin 0:0ed2a7c7190c 202 * @param block 1 to block until the request is posted, 0 to non-blocking mode
GordonSin 0:0ed2a7c7190c 203 * @return ERR_OK if the function was called, another err_t if not
GordonSin 0:0ed2a7c7190c 204 */
GordonSin 0:0ed2a7c7190c 205 err_t
GordonSin 0:0ed2a7c7190c 206 tcpip_callback_with_block(tcpip_callback_fn function, void *ctx, u8_t block)
GordonSin 0:0ed2a7c7190c 207 {
GordonSin 0:0ed2a7c7190c 208 struct tcpip_msg *msg;
GordonSin 0:0ed2a7c7190c 209
GordonSin 0:0ed2a7c7190c 210 if (sys_mbox_valid(&mbox)) {
GordonSin 0:0ed2a7c7190c 211 msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
GordonSin 0:0ed2a7c7190c 212 if (msg == NULL) {
GordonSin 0:0ed2a7c7190c 213 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 214 }
GordonSin 0:0ed2a7c7190c 215
GordonSin 0:0ed2a7c7190c 216 msg->type = TCPIP_MSG_CALLBACK;
GordonSin 0:0ed2a7c7190c 217 msg->msg.cb.function = function;
GordonSin 0:0ed2a7c7190c 218 msg->msg.cb.ctx = ctx;
GordonSin 0:0ed2a7c7190c 219 if (block) {
GordonSin 0:0ed2a7c7190c 220 sys_mbox_post(&mbox, msg);
GordonSin 0:0ed2a7c7190c 221 } else {
GordonSin 0:0ed2a7c7190c 222 if (sys_mbox_trypost(&mbox, msg) != ERR_OK) {
GordonSin 0:0ed2a7c7190c 223 memp_free(MEMP_TCPIP_MSG_API, msg);
GordonSin 0:0ed2a7c7190c 224 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 225 }
GordonSin 0:0ed2a7c7190c 226 }
GordonSin 0:0ed2a7c7190c 227 return ERR_OK;
GordonSin 0:0ed2a7c7190c 228 }
GordonSin 0:0ed2a7c7190c 229 return ERR_VAL;
GordonSin 0:0ed2a7c7190c 230 }
GordonSin 0:0ed2a7c7190c 231
GordonSin 0:0ed2a7c7190c 232 #if LWIP_TCPIP_TIMEOUT
GordonSin 0:0ed2a7c7190c 233 /**
GordonSin 0:0ed2a7c7190c 234 * call sys_timeout in tcpip_thread
GordonSin 0:0ed2a7c7190c 235 *
GordonSin 0:0ed2a7c7190c 236 * @param msec time in milliseconds for timeout
GordonSin 0:0ed2a7c7190c 237 * @param h function to be called on timeout
GordonSin 0:0ed2a7c7190c 238 * @param arg argument to pass to timeout function h
GordonSin 0:0ed2a7c7190c 239 * @return ERR_MEM on memory error, ERR_OK otherwise
GordonSin 0:0ed2a7c7190c 240 */
GordonSin 0:0ed2a7c7190c 241 err_t
GordonSin 0:0ed2a7c7190c 242 tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg)
GordonSin 0:0ed2a7c7190c 243 {
GordonSin 0:0ed2a7c7190c 244 struct tcpip_msg *msg;
GordonSin 0:0ed2a7c7190c 245
GordonSin 0:0ed2a7c7190c 246 if (sys_mbox_valid(&mbox)) {
GordonSin 0:0ed2a7c7190c 247 msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
GordonSin 0:0ed2a7c7190c 248 if (msg == NULL) {
GordonSin 0:0ed2a7c7190c 249 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 250 }
GordonSin 0:0ed2a7c7190c 251
GordonSin 0:0ed2a7c7190c 252 msg->type = TCPIP_MSG_TIMEOUT;
GordonSin 0:0ed2a7c7190c 253 msg->msg.tmo.msecs = msecs;
GordonSin 0:0ed2a7c7190c 254 msg->msg.tmo.h = h;
GordonSin 0:0ed2a7c7190c 255 msg->msg.tmo.arg = arg;
GordonSin 0:0ed2a7c7190c 256 sys_mbox_post(&mbox, msg);
GordonSin 0:0ed2a7c7190c 257 return ERR_OK;
GordonSin 0:0ed2a7c7190c 258 }
GordonSin 0:0ed2a7c7190c 259 return ERR_VAL;
GordonSin 0:0ed2a7c7190c 260 }
GordonSin 0:0ed2a7c7190c 261
GordonSin 0:0ed2a7c7190c 262 /**
GordonSin 0:0ed2a7c7190c 263 * call sys_untimeout in tcpip_thread
GordonSin 0:0ed2a7c7190c 264 *
GordonSin 0:0ed2a7c7190c 265 * @param msec time in milliseconds for timeout
GordonSin 0:0ed2a7c7190c 266 * @param h function to be called on timeout
GordonSin 0:0ed2a7c7190c 267 * @param arg argument to pass to timeout function h
GordonSin 0:0ed2a7c7190c 268 * @return ERR_MEM on memory error, ERR_OK otherwise
GordonSin 0:0ed2a7c7190c 269 */
GordonSin 0:0ed2a7c7190c 270 err_t
GordonSin 0:0ed2a7c7190c 271 tcpip_untimeout(sys_timeout_handler h, void *arg)
GordonSin 0:0ed2a7c7190c 272 {
GordonSin 0:0ed2a7c7190c 273 struct tcpip_msg *msg;
GordonSin 0:0ed2a7c7190c 274
GordonSin 0:0ed2a7c7190c 275 if (sys_mbox_valid(&mbox)) {
GordonSin 0:0ed2a7c7190c 276 msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
GordonSin 0:0ed2a7c7190c 277 if (msg == NULL) {
GordonSin 0:0ed2a7c7190c 278 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 279 }
GordonSin 0:0ed2a7c7190c 280
GordonSin 0:0ed2a7c7190c 281 msg->type = TCPIP_MSG_UNTIMEOUT;
GordonSin 0:0ed2a7c7190c 282 msg->msg.tmo.h = h;
GordonSin 0:0ed2a7c7190c 283 msg->msg.tmo.arg = arg;
GordonSin 0:0ed2a7c7190c 284 sys_mbox_post(&mbox, msg);
GordonSin 0:0ed2a7c7190c 285 return ERR_OK;
GordonSin 0:0ed2a7c7190c 286 }
GordonSin 0:0ed2a7c7190c 287 return ERR_VAL;
GordonSin 0:0ed2a7c7190c 288 }
GordonSin 0:0ed2a7c7190c 289 #endif /* LWIP_TCPIP_TIMEOUT */
GordonSin 0:0ed2a7c7190c 290
GordonSin 0:0ed2a7c7190c 291 #if LWIP_NETCONN
GordonSin 0:0ed2a7c7190c 292 /**
GordonSin 0:0ed2a7c7190c 293 * Call the lower part of a netconn_* function
GordonSin 0:0ed2a7c7190c 294 * This function is then running in the thread context
GordonSin 0:0ed2a7c7190c 295 * of tcpip_thread and has exclusive access to lwIP core code.
GordonSin 0:0ed2a7c7190c 296 *
GordonSin 0:0ed2a7c7190c 297 * @param apimsg a struct containing the function to call and its parameters
GordonSin 0:0ed2a7c7190c 298 * @return ERR_OK if the function was called, another err_t if not
GordonSin 0:0ed2a7c7190c 299 */
GordonSin 0:0ed2a7c7190c 300 err_t
GordonSin 0:0ed2a7c7190c 301 tcpip_apimsg(struct api_msg *apimsg)
GordonSin 0:0ed2a7c7190c 302 {
GordonSin 0:0ed2a7c7190c 303 struct tcpip_msg msg;
GordonSin 0:0ed2a7c7190c 304 #ifdef LWIP_DEBUG
GordonSin 0:0ed2a7c7190c 305 /* catch functions that don't set err */
GordonSin 0:0ed2a7c7190c 306 apimsg->msg.err = ERR_VAL;
GordonSin 0:0ed2a7c7190c 307 #endif
GordonSin 0:0ed2a7c7190c 308
GordonSin 0:0ed2a7c7190c 309 if (sys_mbox_valid(&mbox)) {
GordonSin 0:0ed2a7c7190c 310 msg.type = TCPIP_MSG_API;
GordonSin 0:0ed2a7c7190c 311 msg.msg.apimsg = apimsg;
GordonSin 0:0ed2a7c7190c 312 sys_mbox_post(&mbox, &msg);
GordonSin 0:0ed2a7c7190c 313 sys_arch_sem_wait(&apimsg->msg.conn->op_completed, 0);
GordonSin 0:0ed2a7c7190c 314 return apimsg->msg.err;
GordonSin 0:0ed2a7c7190c 315 }
GordonSin 0:0ed2a7c7190c 316 return ERR_VAL;
GordonSin 0:0ed2a7c7190c 317 }
GordonSin 0:0ed2a7c7190c 318
GordonSin 0:0ed2a7c7190c 319 #if LWIP_TCPIP_CORE_LOCKING
GordonSin 0:0ed2a7c7190c 320 /**
GordonSin 0:0ed2a7c7190c 321 * Call the lower part of a netconn_* function
GordonSin 0:0ed2a7c7190c 322 * This function has exclusive access to lwIP core code by locking it
GordonSin 0:0ed2a7c7190c 323 * before the function is called.
GordonSin 0:0ed2a7c7190c 324 *
GordonSin 0:0ed2a7c7190c 325 * @param apimsg a struct containing the function to call and its parameters
GordonSin 0:0ed2a7c7190c 326 * @return ERR_OK (only for compatibility fo tcpip_apimsg())
GordonSin 0:0ed2a7c7190c 327 */
GordonSin 0:0ed2a7c7190c 328 err_t
GordonSin 0:0ed2a7c7190c 329 tcpip_apimsg_lock(struct api_msg *apimsg)
GordonSin 0:0ed2a7c7190c 330 {
GordonSin 0:0ed2a7c7190c 331 #ifdef LWIP_DEBUG
GordonSin 0:0ed2a7c7190c 332 /* catch functions that don't set err */
GordonSin 0:0ed2a7c7190c 333 apimsg->msg.err = ERR_VAL;
GordonSin 0:0ed2a7c7190c 334 #endif
GordonSin 0:0ed2a7c7190c 335
GordonSin 0:0ed2a7c7190c 336 LOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 337 apimsg->function(&(apimsg->msg));
GordonSin 0:0ed2a7c7190c 338 UNLOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 339 return apimsg->msg.err;
GordonSin 0:0ed2a7c7190c 340
GordonSin 0:0ed2a7c7190c 341 }
GordonSin 0:0ed2a7c7190c 342 #endif /* LWIP_TCPIP_CORE_LOCKING */
GordonSin 0:0ed2a7c7190c 343 #endif /* LWIP_NETCONN */
GordonSin 0:0ed2a7c7190c 344
GordonSin 0:0ed2a7c7190c 345 #if LWIP_NETIF_API
GordonSin 0:0ed2a7c7190c 346 #if !LWIP_TCPIP_CORE_LOCKING
GordonSin 0:0ed2a7c7190c 347 /**
GordonSin 0:0ed2a7c7190c 348 * Much like tcpip_apimsg, but calls the lower part of a netifapi_*
GordonSin 0:0ed2a7c7190c 349 * function.
GordonSin 0:0ed2a7c7190c 350 *
GordonSin 0:0ed2a7c7190c 351 * @param netifapimsg a struct containing the function to call and its parameters
GordonSin 0:0ed2a7c7190c 352 * @return error code given back by the function that was called
GordonSin 0:0ed2a7c7190c 353 */
GordonSin 0:0ed2a7c7190c 354 err_t
GordonSin 0:0ed2a7c7190c 355 tcpip_netifapi(struct netifapi_msg* netifapimsg)
GordonSin 0:0ed2a7c7190c 356 {
GordonSin 0:0ed2a7c7190c 357 struct tcpip_msg msg;
GordonSin 0:0ed2a7c7190c 358
GordonSin 0:0ed2a7c7190c 359 if (sys_mbox_valid(&mbox)) {
GordonSin 0:0ed2a7c7190c 360 err_t err = sys_sem_new(&netifapimsg->msg.sem, 0);
GordonSin 0:0ed2a7c7190c 361 if (err != ERR_OK) {
GordonSin 0:0ed2a7c7190c 362 netifapimsg->msg.err = err;
GordonSin 0:0ed2a7c7190c 363 return err;
GordonSin 0:0ed2a7c7190c 364 }
GordonSin 0:0ed2a7c7190c 365
GordonSin 0:0ed2a7c7190c 366 msg.type = TCPIP_MSG_NETIFAPI;
GordonSin 0:0ed2a7c7190c 367 msg.msg.netifapimsg = netifapimsg;
GordonSin 0:0ed2a7c7190c 368 sys_mbox_post(&mbox, &msg);
GordonSin 0:0ed2a7c7190c 369 sys_sem_wait(&netifapimsg->msg.sem);
GordonSin 0:0ed2a7c7190c 370 sys_sem_free(&netifapimsg->msg.sem);
GordonSin 0:0ed2a7c7190c 371 return netifapimsg->msg.err;
GordonSin 0:0ed2a7c7190c 372 }
GordonSin 0:0ed2a7c7190c 373 return ERR_VAL;
GordonSin 0:0ed2a7c7190c 374 }
GordonSin 0:0ed2a7c7190c 375 #else /* !LWIP_TCPIP_CORE_LOCKING */
GordonSin 0:0ed2a7c7190c 376 /**
GordonSin 0:0ed2a7c7190c 377 * Call the lower part of a netifapi_* function
GordonSin 0:0ed2a7c7190c 378 * This function has exclusive access to lwIP core code by locking it
GordonSin 0:0ed2a7c7190c 379 * before the function is called.
GordonSin 0:0ed2a7c7190c 380 *
GordonSin 0:0ed2a7c7190c 381 * @param netifapimsg a struct containing the function to call and its parameters
GordonSin 0:0ed2a7c7190c 382 * @return ERR_OK (only for compatibility fo tcpip_netifapi())
GordonSin 0:0ed2a7c7190c 383 */
GordonSin 0:0ed2a7c7190c 384 err_t
GordonSin 0:0ed2a7c7190c 385 tcpip_netifapi_lock(struct netifapi_msg* netifapimsg)
GordonSin 0:0ed2a7c7190c 386 {
GordonSin 0:0ed2a7c7190c 387 LOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 388 netifapimsg->function(&(netifapimsg->msg));
GordonSin 0:0ed2a7c7190c 389 UNLOCK_TCPIP_CORE();
GordonSin 0:0ed2a7c7190c 390 return netifapimsg->msg.err;
GordonSin 0:0ed2a7c7190c 391 }
GordonSin 0:0ed2a7c7190c 392 #endif /* !LWIP_TCPIP_CORE_LOCKING */
GordonSin 0:0ed2a7c7190c 393 #endif /* LWIP_NETIF_API */
GordonSin 0:0ed2a7c7190c 394
GordonSin 0:0ed2a7c7190c 395 /**
GordonSin 0:0ed2a7c7190c 396 * Initialize this module:
GordonSin 0:0ed2a7c7190c 397 * - initialize all sub modules
GordonSin 0:0ed2a7c7190c 398 * - start the tcpip_thread
GordonSin 0:0ed2a7c7190c 399 *
GordonSin 0:0ed2a7c7190c 400 * @param initfunc a function to call when tcpip_thread is running and finished initializing
GordonSin 0:0ed2a7c7190c 401 * @param arg argument to pass to initfunc
GordonSin 0:0ed2a7c7190c 402 */
GordonSin 0:0ed2a7c7190c 403 void
GordonSin 0:0ed2a7c7190c 404 tcpip_init(tcpip_init_done_fn initfunc, void *arg)
GordonSin 0:0ed2a7c7190c 405 {
GordonSin 0:0ed2a7c7190c 406 lwip_init();
GordonSin 0:0ed2a7c7190c 407
GordonSin 0:0ed2a7c7190c 408 tcpip_init_done = initfunc;
GordonSin 0:0ed2a7c7190c 409 tcpip_init_done_arg = arg;
GordonSin 0:0ed2a7c7190c 410 if(sys_mbox_new(&mbox, TCPIP_MBOX_SIZE) != ERR_OK) {
GordonSin 0:0ed2a7c7190c 411 LWIP_ASSERT("failed to create tcpip_thread mbox", 0);
GordonSin 0:0ed2a7c7190c 412 }
GordonSin 0:0ed2a7c7190c 413 #if LWIP_TCPIP_CORE_LOCKING
GordonSin 0:0ed2a7c7190c 414 if(sys_mutex_new(&lock_tcpip_core) != ERR_OK) {
GordonSin 0:0ed2a7c7190c 415 LWIP_ASSERT("failed to create lock_tcpip_core", 0);
GordonSin 0:0ed2a7c7190c 416 }
GordonSin 0:0ed2a7c7190c 417 #endif /* LWIP_TCPIP_CORE_LOCKING */
GordonSin 0:0ed2a7c7190c 418
GordonSin 0:0ed2a7c7190c 419 sys_thread_new(TCPIP_THREAD_NAME, tcpip_thread, NULL, TCPIP_THREAD_STACKSIZE, TCPIP_THREAD_PRIO);
GordonSin 0:0ed2a7c7190c 420 }
GordonSin 0:0ed2a7c7190c 421
GordonSin 0:0ed2a7c7190c 422 /**
GordonSin 0:0ed2a7c7190c 423 * Simple callback function used with tcpip_callback to free a pbuf
GordonSin 0:0ed2a7c7190c 424 * (pbuf_free has a wrong signature for tcpip_callback)
GordonSin 0:0ed2a7c7190c 425 *
GordonSin 0:0ed2a7c7190c 426 * @param p The pbuf (chain) to be dereferenced.
GordonSin 0:0ed2a7c7190c 427 */
GordonSin 0:0ed2a7c7190c 428 static void
GordonSin 0:0ed2a7c7190c 429 pbuf_free_int(void *p)
GordonSin 0:0ed2a7c7190c 430 {
GordonSin 0:0ed2a7c7190c 431 struct pbuf *q = (struct pbuf *)p;
GordonSin 0:0ed2a7c7190c 432 pbuf_free(q);
GordonSin 0:0ed2a7c7190c 433 }
GordonSin 0:0ed2a7c7190c 434
GordonSin 0:0ed2a7c7190c 435 /**
GordonSin 0:0ed2a7c7190c 436 * A simple wrapper function that allows you to free a pbuf from interrupt context.
GordonSin 0:0ed2a7c7190c 437 *
GordonSin 0:0ed2a7c7190c 438 * @param p The pbuf (chain) to be dereferenced.
GordonSin 0:0ed2a7c7190c 439 * @return ERR_OK if callback could be enqueued, an err_t if not
GordonSin 0:0ed2a7c7190c 440 */
GordonSin 0:0ed2a7c7190c 441 err_t
GordonSin 0:0ed2a7c7190c 442 pbuf_free_callback(struct pbuf *p)
GordonSin 0:0ed2a7c7190c 443 {
GordonSin 0:0ed2a7c7190c 444 return tcpip_callback_with_block(pbuf_free_int, p, 0);
GordonSin 0:0ed2a7c7190c 445 }
GordonSin 0:0ed2a7c7190c 446
GordonSin 0:0ed2a7c7190c 447 /**
GordonSin 0:0ed2a7c7190c 448 * A simple wrapper function that allows you to free heap memory from
GordonSin 0:0ed2a7c7190c 449 * interrupt context.
GordonSin 0:0ed2a7c7190c 450 *
GordonSin 0:0ed2a7c7190c 451 * @param m the heap memory to free
GordonSin 0:0ed2a7c7190c 452 * @return ERR_OK if callback could be enqueued, an err_t if not
GordonSin 0:0ed2a7c7190c 453 */
GordonSin 0:0ed2a7c7190c 454 err_t
GordonSin 0:0ed2a7c7190c 455 mem_free_callback(void *m)
GordonSin 0:0ed2a7c7190c 456 {
GordonSin 0:0ed2a7c7190c 457 return tcpip_callback_with_block(mem_free, m, 0);
GordonSin 0:0ed2a7c7190c 458 }
GordonSin 0:0ed2a7c7190c 459
GordonSin 0:0ed2a7c7190c 460 #endif /* !NO_SYS */