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authorJosh Blum <josh@joshknows.com>2010-12-22 19:19:14 -0800
committerJosh Blum <josh@joshknows.com>2010-12-22 19:19:14 -0800
commit22ed61f97815856bf74cec25ae6bca88bfbe5f44 (patch)
tree7d87d49b46f9507ff10486097e6d79e4bee4cb81 /firmware/microblaze/lwip/lwip-1.3.1/src/netif/slipif.c
parent71fc99d006f2347a356c5339905593f64ff902ec (diff)
downloaduhd-22ed61f97815856bf74cec25ae6bca88bfbe5f44.tar.gz
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zpu: renamed the directory for the usrp2 fw to zpu to reflect the cpu type
Diffstat (limited to 'firmware/microblaze/lwip/lwip-1.3.1/src/netif/slipif.c')
-rw-r--r--firmware/microblaze/lwip/lwip-1.3.1/src/netif/slipif.c279
1 files changed, 0 insertions, 279 deletions
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/slipif.c b/firmware/microblaze/lwip/lwip-1.3.1/src/netif/slipif.c
deleted file mode 100644
index 6cb2db442..000000000
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/slipif.c
+++ /dev/null
@@ -1,279 +0,0 @@
-/**
- * @file
- * SLIP Interface
- *
- */
-
-/*
- * 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
- *
- * This file is built upon the file: src/arch/rtxc/netif/sioslip.c
- *
- * Author: Magnus Ivarsson <magnus.ivarsson(at)volvo.com>
- */
-
-/*
- * This is an arch independent SLIP netif. The specific serial hooks must be
- * provided by another file. They are sio_open, sio_recv and sio_send
- */
-
-#include "netif/slipif.h"
-#include "lwip/opt.h"
-
-#if LWIP_HAVE_SLIPIF
-
-#include "lwip/def.h"
-#include "lwip/pbuf.h"
-#include "lwip/sys.h"
-#include "lwip/stats.h"
-#include "lwip/snmp.h"
-#include "lwip/sio.h"
-
-#define SLIP_END 0300 /* 0xC0 */
-#define SLIP_ESC 0333 /* 0xDB */
-#define SLIP_ESC_END 0334 /* 0xDC */
-#define SLIP_ESC_ESC 0335 /* 0xDD */
-
-#define MAX_SIZE 1500
-
-/**
- * Send a pbuf doing the necessary SLIP encapsulation
- *
- * Uses the serial layer's sio_send()
- *
- * @param netif the lwip network interface structure for this slipif
- * @param p the pbuf chaing packet to send
- * @param ipaddr the ip address to send the packet to (not used for slipif)
- * @return always returns ERR_OK since the serial layer does not provide return values
- */
-err_t
-slipif_output(struct netif *netif, struct pbuf *p, struct ip_addr *ipaddr)
-{
- struct pbuf *q;
- u16_t i;
- u8_t c;
-
- LWIP_ASSERT("netif != NULL", (netif != NULL));
- LWIP_ASSERT("netif->state != NULL", (netif->state != NULL));
- LWIP_ASSERT("p != NULL", (p != NULL));
-
- LWIP_UNUSED_ARG(ipaddr);
-
- /* Send pbuf out on the serial I/O device. */
- sio_send(SLIP_END, netif->state);
-
- for (q = p; q != NULL; q = q->next) {
- for (i = 0; i < q->len; i++) {
- c = ((u8_t *)q->payload)[i];
- switch (c) {
- case SLIP_END:
- sio_send(SLIP_ESC, netif->state);
- sio_send(SLIP_ESC_END, netif->state);
- break;
- case SLIP_ESC:
- sio_send(SLIP_ESC, netif->state);
- sio_send(SLIP_ESC_ESC, netif->state);
- break;
- default:
- sio_send(c, netif->state);
- break;
- }
- }
- }
- sio_send(SLIP_END, netif->state);
- return ERR_OK;
-}
-
-/**
- * Handle the incoming SLIP stream character by character
- *
- * Poll the serial layer by calling sio_recv()
- *
- * @param netif the lwip network interface structure for this slipif
- * @return The IP packet when SLIP_END is received
- */
-static struct pbuf *
-slipif_input(struct netif *netif)
-{
- u8_t c;
- /* q is the whole pbuf chain for a packet, p is the current pbuf in the chain */
- struct pbuf *p, *q;
- u16_t recved;
- u16_t i;
-
- LWIP_ASSERT("netif != NULL", (netif != NULL));
- LWIP_ASSERT("netif->state != NULL", (netif->state != NULL));
-
- q = p = NULL;
- recved = i = 0;
- c = 0;
-
- while (1) {
- c = sio_recv(netif->state);
- switch (c) {
- case SLIP_END:
- if (recved > 0) {
- /* Received whole packet. */
- /* Trim the pbuf to the size of the received packet. */
- pbuf_realloc(q, recved);
-
- LINK_STATS_INC(link.recv);
-
- LWIP_DEBUGF(SLIP_DEBUG, ("slipif: Got packet\n"));
- return q;
- }
- break;
-
- case SLIP_ESC:
- c = sio_recv(netif->state);
- switch (c) {
- case SLIP_ESC_END:
- c = SLIP_END;
- break;
- case SLIP_ESC_ESC:
- c = SLIP_ESC;
- break;
- }
- /* FALLTHROUGH */
-
- default:
- /* byte received, packet not yet completely received */
- if (p == NULL) {
- /* allocate a new pbuf */
- LWIP_DEBUGF(SLIP_DEBUG, ("slipif_input: alloc\n"));
- p = pbuf_alloc(PBUF_LINK, PBUF_POOL_BUFSIZE, PBUF_POOL);
-
- if (p == NULL) {
- LINK_STATS_INC(link.drop);
- LWIP_DEBUGF(SLIP_DEBUG, ("slipif_input: no new pbuf! (DROP)\n"));
- /* don't process any further since we got no pbuf to receive to */
- break;
- }
-
- if (q != NULL) {
- /* 'chain' the pbuf to the existing chain */
- pbuf_cat(q, p);
- } else {
- /* p is the first pbuf in the chain */
- q = p;
- }
- }
-
- /* this automatically drops bytes if > MAX_SIZE */
- if ((p != NULL) && (recved <= MAX_SIZE)) {
- ((u8_t *)p->payload)[i] = c;
- recved++;
- i++;
- if (i >= p->len) {
- /* on to the next pbuf */
- i = 0;
- if (p->next != NULL && p->next->len > 0) {
- /* p is a chain, on to the next in the chain */
- p = p->next;
- } else {
- /* p is a single pbuf, set it to NULL so next time a new
- * pbuf is allocated */
- p = NULL;
- }
- }
- }
- break;
- }
- }
- return NULL;
-}
-
-#if !NO_SYS
-/**
- * The SLIP input thread.
- *
- * Feed the IP layer with incoming packets
- *
- * @param nf the lwip network interface structure for this slipif
- */
-static void
-slipif_loop(void *nf)
-{
- struct pbuf *p;
- struct netif *netif = (struct netif *)nf;
-
- while (1) {
- p = slipif_input(netif);
- if (p != NULL) {
- if (netif->input(p, netif) != ERR_OK) {
- pbuf_free(p);
- p = NULL;
- }
- }
- }
-}
-#endif /* !NO_SYS */
-
-/**
- * SLIP netif initialization
- *
- * Call the arch specific sio_open and remember
- * the opened device in the state field of the netif.
- *
- * @param netif the lwip network interface structure for this slipif
- * @return ERR_OK if serial line could be opened,
- * ERR_IF is serial line couldn't be opened
- *
- * @note netif->num must contain the number of the serial port to open
- * (0 by default)
- */
-err_t
-slipif_init(struct netif *netif)
-{
-
- LWIP_DEBUGF(SLIP_DEBUG, ("slipif_init: netif->num=%"U16_F"\n", (u16_t)netif->num));
-
- netif->name[0] = 's';
- netif->name[1] = 'l';
- netif->output = slipif_output;
- netif->mtu = MAX_SIZE;
- netif->flags = NETIF_FLAG_POINTTOPOINT;
-
- /* Try to open the serial port (netif->num contains the port number). */
- netif->state = sio_open(netif->num);
- if (!netif->state) {
- /* Opening the serial port failed. */
- return ERR_IF;
- }
-
- /* initialize the snmp variables and counters inside the struct netif
- * ifSpeed: no assumption can be made without knowing more about the
- * serial line!
- */
- NETIF_INIT_SNMP(netif, snmp_ifType_slip, 0);
-
- /* Create a thread to poll the serial line. */
- sys_thread_new(SLIPIF_THREAD_NAME, slipif_loop, netif, SLIPIF_THREAD_STACKSIZE, SLIPIF_THREAD_PRIO);
- return ERR_OK;
-}
-#endif /* LWIP_HAVE_SLIPIF */