Lee Kai Xuan / mbed-os

mbed-os

Fork of mbed-os by erkin yucel

features/FEATURE_LWIP/lwip-interface/emac_lwip.c@1:3deb71413561, 2017-07-20 (annotated)

Committer:
xuaner
Date:
Thu Jul 20 14:26:57 2017 +0000
Revision:
1:3deb71413561
Parent:
0:f269e3021894 
mbed_os

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /* mbed Microcontroller Library
elessair 0:f269e3021894 2 * Copyright (c) 2016 ARM Limited
elessair 0:f269e3021894 3 *
elessair 0:f269e3021894 4 * Licensed under the Apache License, Version 2.0 (the "License");
elessair 0:f269e3021894 5 * you may not use this file except in compliance with the License.
elessair 0:f269e3021894 6 * You may obtain a copy of the License at
elessair 0:f269e3021894 7 *
elessair 0:f269e3021894 8 * http://www.apache.org/licenses/LICENSE-2.0
elessair 0:f269e3021894 9 *
elessair 0:f269e3021894 10 * Unless required by applicable law or agreed to in writing, software
elessair 0:f269e3021894 11 * distributed under the License is distributed on an "AS IS" BASIS,
elessair 0:f269e3021894 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:f269e3021894 13 * See the License for the specific language governing permissions and
elessair 0:f269e3021894 14 * limitations under the License.
elessair 0:f269e3021894 15 */
elessair 0:f269e3021894 16
elessair 0:f269e3021894 17 #if DEVICE_EMAC
elessair 0:f269e3021894 18
elessair 0:f269e3021894 19 #include "emac_api.h"
elessair 0:f269e3021894 20 #include "emac_stack_mem.h"
elessair 0:f269e3021894 21 #include "lwip/tcpip.h"
elessair 0:f269e3021894 22 #include "lwip/tcp.h"
elessair 0:f269e3021894 23 #include "lwip/ip.h"
elessair 0:f269e3021894 24 #include "netif/etharp.h"
elessair 0:f269e3021894 25
elessair 0:f269e3021894 26 static err_t emac_lwip_low_level_output(struct netif *netif, struct pbuf *p)
elessair 0:f269e3021894 27 {
elessair 0:f269e3021894 28 emac_interface_t *mac = (emac_interface_t *)netif->state;
elessair 0:f269e3021894 29 bool ret = mac->ops.link_out(mac, (emac_stack_mem_t *)p);
elessair 0:f269e3021894 30
elessair 0:f269e3021894 31 return ret ? ERR_OK : ERR_IF;
elessair 0:f269e3021894 32 }
elessair 0:f269e3021894 33
elessair 0:f269e3021894 34 static void emac_lwip_input(void *data, emac_stack_t *buf)
elessair 0:f269e3021894 35 {
elessair 0:f269e3021894 36 struct pbuf *p = (struct pbuf *)buf;
elessair 0:f269e3021894 37 struct netif *netif = (struct netif *)data;
elessair 0:f269e3021894 38
elessair 0:f269e3021894 39 /* pass all packets to ethernet_input, which decides what packets it supports */
elessair 0:f269e3021894 40 if (netif->input(p, netif) != ERR_OK) {
elessair 0:f269e3021894 41 LWIP_DEBUGF(NETIF_DEBUG, ("Emac LWIP: IP input error\n"));
elessair 0:f269e3021894 42
elessair 0:f269e3021894 43 pbuf_free(p);
elessair 0:f269e3021894 44 }
elessair 0:f269e3021894 45 }
elessair 0:f269e3021894 46
elessair 0:f269e3021894 47 static void emac_lwip_state_change(void *data, bool up)
elessair 0:f269e3021894 48 {
elessair 0:f269e3021894 49 struct netif *netif = (struct netif *)data;
elessair 0:f269e3021894 50
elessair 0:f269e3021894 51 if (up) {
elessair 0:f269e3021894 52 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, netif, 1);
elessair 0:f269e3021894 53 } else {
elessair 0:f269e3021894 54 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, netif, 1);
elessair 0:f269e3021894 55 }
elessair 0:f269e3021894 56 }
elessair 0:f269e3021894 57
elessair 0:f269e3021894 58 err_t emac_lwip_if_init(struct netif *netif)
elessair 0:f269e3021894 59 {
elessair 0:f269e3021894 60 int err = ERR_OK;
elessair 0:f269e3021894 61 emac_interface_t *mac = (emac_interface_t *)netif->state;
elessair 0:f269e3021894 62
elessair 0:f269e3021894 63 mac->ops.set_link_input_cb(mac, emac_lwip_input, netif);
elessair 0:f269e3021894 64 mac->ops.set_link_state_cb(mac, emac_lwip_state_change, netif);
elessair 0:f269e3021894 65
elessair 0:f269e3021894 66 netif->hwaddr_len = mac->ops.get_hwaddr_size(mac);
elessair 0:f269e3021894 67 mac->ops.get_hwaddr(mac, netif->hwaddr);
elessair 0:f269e3021894 68
elessair 0:f269e3021894 69 netif->mtu = mac->ops.get_mtu_size(mac);
elessair 0:f269e3021894 70
elessair 0:f269e3021894 71 /* Interface capabilities */
elessair 0:f269e3021894 72 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
elessair 0:f269e3021894 73
elessair 0:f269e3021894 74 mac->ops.get_ifname(mac, netif->name, 2);
elessair 0:f269e3021894 75
elessair 0:f269e3021894 76 #if LWIP_IPV4
elessair 0:f269e3021894 77 netif->output = etharp_output;
elessair 0:f269e3021894 78 #endif /* LWIP_IPV4 */
elessair 0:f269e3021894 79
elessair 0:f269e3021894 80 netif->linkoutput = emac_lwip_low_level_output;
elessair 0:f269e3021894 81
elessair 0:f269e3021894 82 if (!mac->ops.power_up(mac)) {
elessair 0:f269e3021894 83 err = ERR_IF;
elessair 0:f269e3021894 84 }
elessair 0:f269e3021894 85
elessair 0:f269e3021894 86 return err;
elessair 0:f269e3021894 87 }
elessair 0:f269e3021894 88
elessair 0:f269e3021894 89 #endif /* DEVICE_EMAC */