mirror of https://github.com/ARMmbed/mbed-os.git
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2016 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#if DEVICE_EMAC
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#include "emac_api.h"
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#include "emac_stack_mem.h"
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#include "lwip/tcpip.h"
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#include "lwip/tcp.h"
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#include "lwip/ip.h"
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#include "netif/etharp.h"
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static err_t emac_lwip_low_level_output(struct netif *netif, struct pbuf *p)
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{
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emac_interface_t *mac = (emac_interface_t *)netif->state;
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bool ret = mac->ops.link_out(mac, (emac_stack_mem_t *)p);
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return ret ? ERR_OK : ERR_IF;
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}
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static void emac_lwip_input(void *data, emac_stack_t *buf)
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{
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struct pbuf *p = (struct pbuf *)buf;
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struct netif *netif = (struct netif *)data;
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/* pass all packets to ethernet_input, which decides what packets it supports */
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if (netif->input(p, netif) != ERR_OK) {
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LWIP_DEBUGF(NETIF_DEBUG, ("Emac LWIP: IP input error\n"));
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pbuf_free(p);
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}
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}
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static void emac_lwip_state_change(void *data, bool up)
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{
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struct netif *netif = (struct netif *)data;
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if (up) {
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tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, netif, 1);
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} else {
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tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, netif, 1);
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}
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}
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err_t emac_lwip_if_init(struct netif *netif)
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{
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int err = ERR_OK;
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emac_interface_t *mac = (emac_interface_t *)netif->state;
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mac->ops.set_link_input_cb(mac, emac_lwip_input, netif);
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mac->ops.set_link_state_cb(mac, emac_lwip_state_change, netif);
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if (!mac->ops.power_up(mac)) {
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err = ERR_IF;
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}
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netif->mtu = mac->ops.get_mtu_size(mac);
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netif->hwaddr_len = mac->ops.get_hwaddr_size(mac);
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mac->ops.get_hwaddr(mac, netif->hwaddr);
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/* Interface capabilities */
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netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
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mac->ops.get_ifname(mac, netif->name, 2);
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#if LWIP_IPV4
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netif->output = etharp_output;
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#endif /* LWIP_IPV4 */
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netif->linkoutput = emac_lwip_low_level_output;
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return err;
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}
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#endif /* DEVICE_EMAC */
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