Greg Steiert / pegasus_dev

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Dependents:   blinky_max32630fthr

features/FEATURE_LWIP/lwip-interface/emac_lwip.c@0:5c4d7b2438d3, 2016-11-11 (annotated)

Committer:
switches
Date:
Fri Nov 11 20:59:50 2016 +0000
Revision:
0:5c4d7b2438d3
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
switches 0:5c4d7b2438d3 1 /* mbed Microcontroller Library
switches 0:5c4d7b2438d3 2 * Copyright (c) 2016 ARM Limited
switches 0:5c4d7b2438d3 3 *
switches 0:5c4d7b2438d3 4 * Licensed under the Apache License, Version 2.0 (the "License");
switches 0:5c4d7b2438d3 5 * you may not use this file except in compliance with the License.
switches 0:5c4d7b2438d3 6 * You may obtain a copy of the License at
switches 0:5c4d7b2438d3 7 *
switches 0:5c4d7b2438d3 8 * http://www.apache.org/licenses/LICENSE-2.0
switches 0:5c4d7b2438d3 9 *
switches 0:5c4d7b2438d3 10 * Unless required by applicable law or agreed to in writing, software
switches 0:5c4d7b2438d3 11 * distributed under the License is distributed on an "AS IS" BASIS,
switches 0:5c4d7b2438d3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
switches 0:5c4d7b2438d3 13 * See the License for the specific language governing permissions and
switches 0:5c4d7b2438d3 14 * limitations under the License.
switches 0:5c4d7b2438d3 15 */
switches 0:5c4d7b2438d3 16
switches 0:5c4d7b2438d3 17 #if DEVICE_EMAC
switches 0:5c4d7b2438d3 18
switches 0:5c4d7b2438d3 19 #include "emac_api.h"
switches 0:5c4d7b2438d3 20 #include "emac_stack_mem.h"
switches 0:5c4d7b2438d3 21 #include "lwip/tcpip.h"
switches 0:5c4d7b2438d3 22 #include "lwip/tcp.h"
switches 0:5c4d7b2438d3 23 #include "lwip/ip.h"
switches 0:5c4d7b2438d3 24 #include "netif/etharp.h"
switches 0:5c4d7b2438d3 25
switches 0:5c4d7b2438d3 26 static err_t emac_lwip_low_level_output(struct netif *netif, struct pbuf *p)
switches 0:5c4d7b2438d3 27 {
switches 0:5c4d7b2438d3 28 emac_interface_t *mac = (emac_interface_t *)netif->state;
switches 0:5c4d7b2438d3 29 bool ret = mac->ops.link_out(mac, (emac_stack_mem_t *)p);
switches 0:5c4d7b2438d3 30
switches 0:5c4d7b2438d3 31 return ret ? ERR_OK : ERR_IF;
switches 0:5c4d7b2438d3 32 }
switches 0:5c4d7b2438d3 33
switches 0:5c4d7b2438d3 34 static void emac_lwip_input(void *data, emac_stack_t *buf)
switches 0:5c4d7b2438d3 35 {
switches 0:5c4d7b2438d3 36 struct pbuf *p = (struct pbuf *)buf;
switches 0:5c4d7b2438d3 37 struct netif *netif = (struct netif *)data;
switches 0:5c4d7b2438d3 38
switches 0:5c4d7b2438d3 39 /* pass all packets to ethernet_input, which decides what packets it supports */
switches 0:5c4d7b2438d3 40 if (netif->input(p, netif) != ERR_OK) {
switches 0:5c4d7b2438d3 41 LWIP_DEBUGF(NETIF_DEBUG, ("Emac LWIP: IP input error\n"));
switches 0:5c4d7b2438d3 42
switches 0:5c4d7b2438d3 43 pbuf_free(p);
switches 0:5c4d7b2438d3 44 }
switches 0:5c4d7b2438d3 45 }
switches 0:5c4d7b2438d3 46
switches 0:5c4d7b2438d3 47 static void emac_lwip_state_change(void *data, bool up)
switches 0:5c4d7b2438d3 48 {
switches 0:5c4d7b2438d3 49 struct netif *netif = (struct netif *)data;
switches 0:5c4d7b2438d3 50
switches 0:5c4d7b2438d3 51 if (up) {
switches 0:5c4d7b2438d3 52 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, netif, 1);
switches 0:5c4d7b2438d3 53 } else {
switches 0:5c4d7b2438d3 54 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, netif, 1);
switches 0:5c4d7b2438d3 55 }
switches 0:5c4d7b2438d3 56 }
switches 0:5c4d7b2438d3 57
switches 0:5c4d7b2438d3 58 err_t emac_lwip_if_init(struct netif *netif)
switches 0:5c4d7b2438d3 59 {
switches 0:5c4d7b2438d3 60 int err = ERR_OK;
switches 0:5c4d7b2438d3 61 emac_interface_t *mac = (emac_interface_t *)netif->state;
switches 0:5c4d7b2438d3 62
switches 0:5c4d7b2438d3 63 mac->ops.set_link_input_cb(mac, emac_lwip_input, netif);
switches 0:5c4d7b2438d3 64 mac->ops.set_link_state_cb(mac, emac_lwip_state_change, netif);
switches 0:5c4d7b2438d3 65
switches 0:5c4d7b2438d3 66 netif->hwaddr_len = mac->ops.get_hwaddr_size(mac);
switches 0:5c4d7b2438d3 67 mac->ops.get_hwaddr(mac, netif->hwaddr);
switches 0:5c4d7b2438d3 68
switches 0:5c4d7b2438d3 69 netif->mtu = mac->ops.get_mtu_size(mac);
switches 0:5c4d7b2438d3 70
switches 0:5c4d7b2438d3 71 /* Interface capabilities */
switches 0:5c4d7b2438d3 72 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
switches 0:5c4d7b2438d3 73
switches 0:5c4d7b2438d3 74 mac->ops.get_ifname(mac, netif->name, 2);
switches 0:5c4d7b2438d3 75
switches 0:5c4d7b2438d3 76 #if LWIP_IPV4
switches 0:5c4d7b2438d3 77 netif->output = etharp_output;
switches 0:5c4d7b2438d3 78 #endif /* LWIP_IPV4 */
switches 0:5c4d7b2438d3 79
switches 0:5c4d7b2438d3 80 netif->linkoutput = emac_lwip_low_level_output;
switches 0:5c4d7b2438d3 81
switches 0:5c4d7b2438d3 82 if (!mac->ops.power_up(mac)) {
switches 0:5c4d7b2438d3 83 err = ERR_IF;
switches 0:5c4d7b2438d3 84 }
switches 0:5c4d7b2438d3 85
switches 0:5c4d7b2438d3 86 return err;
switches 0:5c4d7b2438d3 87 }
switches 0:5c4d7b2438d3 88
switches 0:5c4d7b2438d3 89 #endif /* DEVICE_EMAC */