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esp_netif: Introduction of esp-netif component as a replacement of tcpip_adpter
- provides object oriented access to network intefaces - not limited to default netifs - more generic abstraction to network input output functions - event handler registration removed from component responsibility - backward compatibility layer for legacy tcpip_apapter APIs Closes IDF-39
This commit is contained in:
David Cermak
244
components/esp_wifi/src/wifi_default.c
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244
components/esp_wifi/src/wifi_default.c
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// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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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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#include "esp_wifi.h"
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#include "esp_netif.h"
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#include "esp_log.h"
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#include "esp_private/wifi.h"
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//
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// Purpose of this module is to provide basic wifi initialization setup for
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// station and AP and their conversion to esp-netif objects
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// Also this module holds esp-netif handles for AP and STA
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//
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static const char* TAG = "wifi_init_default";
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static esp_netif_t *sta_netif = NULL;
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static esp_netif_t *ap_netif = NULL;
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static bool wifi_default_handlers_set = false;
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static esp_err_t wifi_sta_receive(void *buffer, uint16_t len, void *eb)
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{
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return esp_netif_receive(sta_netif, buffer, len, eb);
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}
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static esp_err_t wifi_ap_receive(void *buffer, uint16_t len, void *eb)
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{
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return esp_netif_receive(ap_netif, buffer, len, eb);
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}
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void wifi_free(void *h, void* buffer)
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{
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esp_wifi_internal_free_rx_buffer(buffer);
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}
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esp_err_t wifi_transmit(void *h, void *buffer, size_t len)
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{
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return esp_wifi_internal_tx((wifi_interface_t)h, buffer, len);
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}
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void wifi_start(void *esp_netif, esp_event_base_t base, int32_t event_id, void *data)
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{
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ESP_LOGD(TAG, "%s esp-netif:%p event-id%d", __func__, esp_netif, event_id);
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uint8_t mac[6];
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esp_err_t ret;
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wifi_interface_t wifi_interface = (wifi_interface_t) esp_netif_get_io_driver(esp_netif);
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if ((ret = esp_wifi_get_mac(wifi_interface, mac)) != ESP_OK) {
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ESP_LOGE(TAG, "esp_wifi_get_mac failed with %d", ret);
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return;
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}
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ESP_LOGD(TAG, "WIFI mac address: %x %x %x %x %x %x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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if (wifi_interface == ESP_IF_WIFI_AP) {
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// By default register wifi rxcb on start for AP only, station gets it registered on connect event
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if ((ret = esp_wifi_internal_reg_rxcb(wifi_interface, wifi_ap_receive)) != ESP_OK) {
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ESP_LOGE(TAG, "esp_wifi_internal_reg_rxcb for if=%d failed with %d", wifi_interface, ret);
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return;
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}
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}
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esp_netif_set_mac(esp_netif, mac);
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esp_netif_action_start(esp_netif, base, event_id, data);
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}
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static void wifi_default_action_sta_start(void *arg, esp_event_base_t base, int32_t event_id, void *data)
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{
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if (sta_netif != NULL) {
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wifi_start(sta_netif, base, event_id, data);
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}
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}
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static void wifi_default_action_sta_stop(void *arg, esp_event_base_t base, int32_t event_id, void *data)
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{
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if (sta_netif != NULL) {
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esp_netif_action_stop(sta_netif, base, event_id, data);
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}
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}
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static void wifi_default_action_sta_connected(void *arg, esp_event_base_t base, int32_t event_id, void *data)
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{
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if (sta_netif != NULL) {
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esp_err_t ret;
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// By default register wifi rxcb once the STA gets connected
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if ((ret = esp_wifi_internal_reg_rxcb(ESP_IF_WIFI_STA, wifi_sta_receive)) != ESP_OK) {
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ESP_LOGE(TAG, "esp_wifi_internal_reg_rxcb for if=%d failed with %d", ESP_IF_WIFI_STA, ret);
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return;
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}
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esp_netif_action_connected(sta_netif, base, event_id, data);
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}
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}
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static void wifi_default_action_sta_disconnected(void *arg, esp_event_base_t base, int32_t event_id, void *data)
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{
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if (sta_netif != NULL) {
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esp_netif_action_disconnected(sta_netif, base, event_id, data);
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}
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}
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static void wifi_default_action_ap_start(void *arg, esp_event_base_t base, int32_t event_id, void *data)
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{
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if (ap_netif != NULL) {
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wifi_start(ap_netif, base, event_id, data);
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}
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}
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static void wifi_default_action_ap_stop(void *arg, esp_event_base_t base, int32_t event_id, void *data)
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{
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if (ap_netif != NULL) {
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esp_netif_action_stop(ap_netif, base, event_id, data);
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}
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}
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static void wifi_default_action_sta_got_ip(void *arg, esp_event_base_t base, int32_t event_id, void *data)
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{
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if (sta_netif != NULL) {
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ESP_LOGD(TAG, "Got IP wifi default handler entered");
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int ret = esp_wifi_internal_set_sta_ip();
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if (ret != ESP_OK) {
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ESP_LOGI(TAG, "esp_wifi_internal_set_sta_ip failed with %d", ret);
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}
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esp_netif_action_got_ip(sta_netif, base, event_id, data);
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}
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}
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esp_err_t esp_wifi_clear_default_wifi_handlers(void)
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{
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esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_STA_START, wifi_default_action_sta_start);
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esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_STA_STOP, wifi_default_action_sta_stop);
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esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_STA_CONNECTED, wifi_default_action_sta_connected);
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esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, wifi_default_action_sta_disconnected);
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esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_AP_START, wifi_default_action_ap_start);
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esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_AP_STOP, wifi_default_action_ap_stop);
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esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, wifi_default_action_sta_got_ip);
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esp_unregister_shutdown_handler((shutdown_handler_t)esp_wifi_stop);
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wifi_default_handlers_set = false;
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return ESP_OK;
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}
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void _esp_wifi_set_default_ap_netif(esp_netif_t* esp_netif)
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{
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assert(esp_netif);
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ap_netif = esp_netif;
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}
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void _esp_wifi_set_default_sta_netif(esp_netif_t* esp_netif)
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{
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assert(esp_netif);
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sta_netif = esp_netif;
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}
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esp_err_t _esp_wifi_set_default_wifi_handlers(void)
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{
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if (wifi_default_handlers_set) {
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return ESP_OK;
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}
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esp_err_t err;
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err = esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_START, wifi_default_action_sta_start, NULL);
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if (err != ESP_OK) {
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goto fail;
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}
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err = esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_STOP, wifi_default_action_sta_stop, NULL);
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if (err != ESP_OK) {
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goto fail;
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}
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err = esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_CONNECTED, wifi_default_action_sta_connected, NULL);
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if (err != ESP_OK) {
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goto fail;
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}
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err = esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, wifi_default_action_sta_disconnected, NULL);
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if (err != ESP_OK) {
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goto fail;
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}
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err = esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_AP_START, wifi_default_action_ap_start, NULL);
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if (err != ESP_OK) {
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goto fail;
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}
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err = esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_AP_STOP, wifi_default_action_ap_stop, NULL);
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if (err != ESP_OK) {
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goto fail;
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}
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err = esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, wifi_default_action_sta_got_ip, NULL);
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if (err != ESP_OK) {
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goto fail;
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}
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err = esp_register_shutdown_handler((shutdown_handler_t)esp_wifi_stop);
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if (err != ESP_OK && err != ESP_ERR_INVALID_STATE) {
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goto fail;
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}
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wifi_default_handlers_set = true;
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return ESP_OK;
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fail:
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esp_wifi_clear_default_wifi_handlers();
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return err;
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}
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esp_err_t esp_wifi_set_default_wifi_sta_handlers(void *esp_netif)
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{
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_esp_wifi_set_default_sta_netif(esp_netif);
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return _esp_wifi_set_default_wifi_handlers();
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}
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esp_err_t esp_wifi_set_default_wifi_ap_handlers(void *esp_netif)
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{
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_esp_wifi_set_default_ap_netif(esp_netif);
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return _esp_wifi_set_default_wifi_handlers();
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}
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const esp_netif_driver_ifconfig_t _g_wifi_driver_sta_ifconfig = {
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.handle = (void*)WIFI_IF_STA,
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.transmit = wifi_transmit,
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.driver_free_rx_buffer = wifi_free,
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};
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const esp_netif_driver_ifconfig_t _g_wifi_driver_ap_ifconfig = {
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.handle = (void*)WIFI_IF_AP,
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.transmit = wifi_transmit,
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.driver_free_rx_buffer = wifi_free,
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};
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