Simon Cooksey / mbed-os

features/FEATURE_LWIP/lwip-interface/emac_lwip.c@0:fb7af294d5d9, 2016-11-17 (annotated)

Committer:
Simon Cooksey
Date:
Thu Nov 17 16:43:53 2016 +0000
Revision:
0:fb7af294d5d9
Initial commit

Who changed what in which revision?

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Simon Cooksey 0:fb7af294d5d9 1 /* mbed Microcontroller Library
Simon Cooksey 0:fb7af294d5d9 2 * Copyright (c) 2016 ARM Limited
Simon Cooksey 0:fb7af294d5d9 3 *
Simon Cooksey 0:fb7af294d5d9 4 * Licensed under the Apache License, Version 2.0 (the "License");
Simon Cooksey 0:fb7af294d5d9 5 * you may not use this file except in compliance with the License.
Simon Cooksey 0:fb7af294d5d9 6 * You may obtain a copy of the License at
Simon Cooksey 0:fb7af294d5d9 7 *
Simon Cooksey 0:fb7af294d5d9 8 * http://www.apache.org/licenses/LICENSE-2.0
Simon Cooksey 0:fb7af294d5d9 9 *
Simon Cooksey 0:fb7af294d5d9 10 * Unless required by applicable law or agreed to in writing, software
Simon Cooksey 0:fb7af294d5d9 11 * distributed under the License is distributed on an "AS IS" BASIS,
Simon Cooksey 0:fb7af294d5d9 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Simon Cooksey 0:fb7af294d5d9 13 * See the License for the specific language governing permissions and
Simon Cooksey 0:fb7af294d5d9 14 * limitations under the License.
Simon Cooksey 0:fb7af294d5d9 15 */
Simon Cooksey 0:fb7af294d5d9 16
Simon Cooksey 0:fb7af294d5d9 17 #if DEVICE_EMAC
Simon Cooksey 0:fb7af294d5d9 18
Simon Cooksey 0:fb7af294d5d9 19 #include "emac_api.h"
Simon Cooksey 0:fb7af294d5d9 20 #include "emac_stack_mem.h"
Simon Cooksey 0:fb7af294d5d9 21 #include "lwip/tcpip.h"
Simon Cooksey 0:fb7af294d5d9 22 #include "lwip/tcp.h"
Simon Cooksey 0:fb7af294d5d9 23 #include "lwip/ip.h"
Simon Cooksey 0:fb7af294d5d9 24 #include "netif/etharp.h"
Simon Cooksey 0:fb7af294d5d9 25
Simon Cooksey 0:fb7af294d5d9 26 static err_t emac_lwip_low_level_output(struct netif *netif, struct pbuf *p)
Simon Cooksey 0:fb7af294d5d9 27 {
Simon Cooksey 0:fb7af294d5d9 28 emac_interface_t *mac = (emac_interface_t *)netif->state;
Simon Cooksey 0:fb7af294d5d9 29 bool ret = mac->ops.link_out(mac, (emac_stack_mem_t *)p);
Simon Cooksey 0:fb7af294d5d9 30
Simon Cooksey 0:fb7af294d5d9 31 return ret ? ERR_OK : ERR_IF;
Simon Cooksey 0:fb7af294d5d9 32 }
Simon Cooksey 0:fb7af294d5d9 33
Simon Cooksey 0:fb7af294d5d9 34 static void emac_lwip_input(void *data, emac_stack_t *buf)
Simon Cooksey 0:fb7af294d5d9 35 {
Simon Cooksey 0:fb7af294d5d9 36 struct pbuf *p = (struct pbuf *)buf;
Simon Cooksey 0:fb7af294d5d9 37 struct netif *netif = (struct netif *)data;
Simon Cooksey 0:fb7af294d5d9 38
Simon Cooksey 0:fb7af294d5d9 39 /* pass all packets to ethernet_input, which decides what packets it supports */
Simon Cooksey 0:fb7af294d5d9 40 if (netif->input(p, netif) != ERR_OK) {
Simon Cooksey 0:fb7af294d5d9 41 LWIP_DEBUGF(NETIF_DEBUG, ("Emac LWIP: IP input error\n"));
Simon Cooksey 0:fb7af294d5d9 42
Simon Cooksey 0:fb7af294d5d9 43 pbuf_free(p);
Simon Cooksey 0:fb7af294d5d9 44 }
Simon Cooksey 0:fb7af294d5d9 45 }
Simon Cooksey 0:fb7af294d5d9 46
Simon Cooksey 0:fb7af294d5d9 47 static void emac_lwip_state_change(void *data, bool up)
Simon Cooksey 0:fb7af294d5d9 48 {
Simon Cooksey 0:fb7af294d5d9 49 struct netif *netif = (struct netif *)data;
Simon Cooksey 0:fb7af294d5d9 50
Simon Cooksey 0:fb7af294d5d9 51 if (up) {
Simon Cooksey 0:fb7af294d5d9 52 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, netif, 1);
Simon Cooksey 0:fb7af294d5d9 53 } else {
Simon Cooksey 0:fb7af294d5d9 54 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, netif, 1);
Simon Cooksey 0:fb7af294d5d9 55 }
Simon Cooksey 0:fb7af294d5d9 56 }
Simon Cooksey 0:fb7af294d5d9 57
Simon Cooksey 0:fb7af294d5d9 58 err_t emac_lwip_if_init(struct netif *netif)
Simon Cooksey 0:fb7af294d5d9 59 {
Simon Cooksey 0:fb7af294d5d9 60 int err = ERR_OK;
Simon Cooksey 0:fb7af294d5d9 61 emac_interface_t *mac = (emac_interface_t *)netif->state;
Simon Cooksey 0:fb7af294d5d9 62
Simon Cooksey 0:fb7af294d5d9 63 mac->ops.set_link_input_cb(mac, emac_lwip_input, netif);
Simon Cooksey 0:fb7af294d5d9 64 mac->ops.set_link_state_cb(mac, emac_lwip_state_change, netif);
Simon Cooksey 0:fb7af294d5d9 65
Simon Cooksey 0:fb7af294d5d9 66 netif->hwaddr_len = mac->ops.get_hwaddr_size(mac);
Simon Cooksey 0:fb7af294d5d9 67 mac->ops.get_hwaddr(mac, netif->hwaddr);
Simon Cooksey 0:fb7af294d5d9 68
Simon Cooksey 0:fb7af294d5d9 69 netif->mtu = mac->ops.get_mtu_size(mac);
Simon Cooksey 0:fb7af294d5d9 70
Simon Cooksey 0:fb7af294d5d9 71 /* Interface capabilities */
Simon Cooksey 0:fb7af294d5d9 72 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
Simon Cooksey 0:fb7af294d5d9 73
Simon Cooksey 0:fb7af294d5d9 74 mac->ops.get_ifname(mac, netif->name, 2);
Simon Cooksey 0:fb7af294d5d9 75
Simon Cooksey 0:fb7af294d5d9 76 #if LWIP_IPV4
Simon Cooksey 0:fb7af294d5d9 77 netif->output = etharp_output;
Simon Cooksey 0:fb7af294d5d9 78 #endif /* LWIP_IPV4 */
Simon Cooksey 0:fb7af294d5d9 79
Simon Cooksey 0:fb7af294d5d9 80 netif->linkoutput = emac_lwip_low_level_output;
Simon Cooksey 0:fb7af294d5d9 81
Simon Cooksey 0:fb7af294d5d9 82 if (!mac->ops.power_up(mac)) {
Simon Cooksey 0:fb7af294d5d9 83 err = ERR_IF;
Simon Cooksey 0:fb7af294d5d9 84 }
Simon Cooksey 0:fb7af294d5d9 85
Simon Cooksey 0:fb7af294d5d9 86 return err;
Simon Cooksey 0:fb7af294d5d9 87 }
Simon Cooksey 0:fb7af294d5d9 88
Simon Cooksey 0:fb7af294d5d9 89 #endif /* DEVICE_EMAC */