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mbed-os/features/FEATURE_LWIP/lwip-interface/emac_lwip.c@1:b36bbc1c6d27, 2020-04-11 (annotated)

Committer:
demayer
Date:
Sat Apr 11 08:15:48 2020 +0000
Revision:
1:b36bbc1c6d27
Parent:
0:6bf0743ece18 
IMU-library in .h und .cpp file aufgeteilt

Who changed what in which revision?

UserRevisionLine numberNew contents of line
demayer 0:6bf0743ece18 1 /* mbed Microcontroller Library
demayer 0:6bf0743ece18 2 * Copyright (c) 2016 ARM Limited
demayer 0:6bf0743ece18 3 *
demayer 0:6bf0743ece18 4 * Licensed under the Apache License, Version 2.0 (the "License");
demayer 0:6bf0743ece18 5 * you may not use this file except in compliance with the License.
demayer 0:6bf0743ece18 6 * You may obtain a copy of the License at
demayer 0:6bf0743ece18 7 *
demayer 0:6bf0743ece18 8 * http://www.apache.org/licenses/LICENSE-2.0
demayer 0:6bf0743ece18 9 *
demayer 0:6bf0743ece18 10 * Unless required by applicable law or agreed to in writing, software
demayer 0:6bf0743ece18 11 * distributed under the License is distributed on an "AS IS" BASIS,
demayer 0:6bf0743ece18 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
demayer 0:6bf0743ece18 13 * See the License for the specific language governing permissions and
demayer 0:6bf0743ece18 14 * limitations under the License.
demayer 0:6bf0743ece18 15 */
demayer 0:6bf0743ece18 16
demayer 0:6bf0743ece18 17 #if DEVICE_EMAC
demayer 0:6bf0743ece18 18
demayer 0:6bf0743ece18 19 #include "emac_api.h"
demayer 0:6bf0743ece18 20 #include "emac_stack_mem.h"
demayer 0:6bf0743ece18 21 #include "lwip/tcpip.h"
demayer 0:6bf0743ece18 22 #include "lwip/tcp.h"
demayer 0:6bf0743ece18 23 #include "lwip/ip.h"
demayer 0:6bf0743ece18 24 #include "netif/etharp.h"
demayer 0:6bf0743ece18 25
demayer 0:6bf0743ece18 26 static err_t emac_lwip_low_level_output(struct netif *netif, struct pbuf *p)
demayer 0:6bf0743ece18 27 {
demayer 0:6bf0743ece18 28 emac_interface_t *mac = (emac_interface_t *)netif->state;
demayer 0:6bf0743ece18 29 bool ret = mac->ops.link_out(mac, (emac_stack_mem_t *)p);
demayer 0:6bf0743ece18 30
demayer 0:6bf0743ece18 31 return ret ? ERR_OK : ERR_IF;
demayer 0:6bf0743ece18 32 }
demayer 0:6bf0743ece18 33
demayer 0:6bf0743ece18 34 static void emac_lwip_input(void *data, emac_stack_t *buf)
demayer 0:6bf0743ece18 35 {
demayer 0:6bf0743ece18 36 struct pbuf *p = (struct pbuf *)buf;
demayer 0:6bf0743ece18 37 struct netif *netif = (struct netif *)data;
demayer 0:6bf0743ece18 38
demayer 0:6bf0743ece18 39 /* pass all packets to ethernet_input, which decides what packets it supports */
demayer 0:6bf0743ece18 40 if (netif->input(p, netif) != ERR_OK) {
demayer 0:6bf0743ece18 41 LWIP_DEBUGF(NETIF_DEBUG, ("Emac LWIP: IP input error\n"));
demayer 0:6bf0743ece18 42
demayer 0:6bf0743ece18 43 pbuf_free(p);
demayer 0:6bf0743ece18 44 }
demayer 0:6bf0743ece18 45 }
demayer 0:6bf0743ece18 46
demayer 0:6bf0743ece18 47 static void emac_lwip_state_change(void *data, bool up)
demayer 0:6bf0743ece18 48 {
demayer 0:6bf0743ece18 49 struct netif *netif = (struct netif *)data;
demayer 0:6bf0743ece18 50
demayer 0:6bf0743ece18 51 if (up) {
demayer 0:6bf0743ece18 52 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, netif, 1);
demayer 0:6bf0743ece18 53 } else {
demayer 0:6bf0743ece18 54 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, netif, 1);
demayer 0:6bf0743ece18 55 }
demayer 0:6bf0743ece18 56 }
demayer 0:6bf0743ece18 57
demayer 0:6bf0743ece18 58 err_t emac_lwip_if_init(struct netif *netif)
demayer 0:6bf0743ece18 59 {
demayer 0:6bf0743ece18 60 int err = ERR_OK;
demayer 0:6bf0743ece18 61 emac_interface_t *mac = (emac_interface_t *)netif->state;
demayer 0:6bf0743ece18 62
demayer 0:6bf0743ece18 63 mac->ops.set_link_input_cb(mac, emac_lwip_input, netif);
demayer 0:6bf0743ece18 64 mac->ops.set_link_state_cb(mac, emac_lwip_state_change, netif);
demayer 0:6bf0743ece18 65
demayer 0:6bf0743ece18 66 if (!mac->ops.power_up(mac)) {
demayer 0:6bf0743ece18 67 err = ERR_IF;
demayer 0:6bf0743ece18 68 }
demayer 0:6bf0743ece18 69
demayer 0:6bf0743ece18 70 netif->mtu = mac->ops.get_mtu_size(mac);
demayer 0:6bf0743ece18 71 netif->hwaddr_len = mac->ops.get_hwaddr_size(mac);
demayer 0:6bf0743ece18 72 mac->ops.get_hwaddr(mac, netif->hwaddr);
demayer 0:6bf0743ece18 73
demayer 0:6bf0743ece18 74 /* Interface capabilities */
demayer 0:6bf0743ece18 75 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
demayer 0:6bf0743ece18 76
demayer 0:6bf0743ece18 77 mac->ops.get_ifname(mac, netif->name, 2);
demayer 0:6bf0743ece18 78
demayer 0:6bf0743ece18 79 #if LWIP_IPV4
demayer 0:6bf0743ece18 80 netif->output = etharp_output;
demayer 0:6bf0743ece18 81 #endif /* LWIP_IPV4 */
demayer 0:6bf0743ece18 82
demayer 0:6bf0743ece18 83 netif->linkoutput = emac_lwip_low_level_output;
demayer 0:6bf0743ece18 84
demayer 0:6bf0743ece18 85 return err;
demayer 0:6bf0743ece18 86 }
demayer 0:6bf0743ece18 87
demayer 0:6bf0743ece18 88 #endif /* DEVICE_EMAC */