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https://github.com/espressif/esp-idf.git
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4c76af3f68
Update wifi lib with below - 1. Create NAN Discovery SM for beaconing & cluster formation 2. Create NAN interface for Tx/Rx of beacons & action frames 3. Add commands & events for NAN Services Publish/Subscribe/Followup 4. Add NAN Datapath definitions, Events, Peer structures 5. Support for forming and parsing of Datapath related attributes 6. Modules for NDP Req, Resp, Confirm, Term, Peer management 7. NAN Interface related additions in Datapath, Data Tx Q's In addition include below changes - 1. Add netif and driver support for NAN Interface 2. Add simple examples for Publisher-Subscriber usecases 3. Add an advanced console example that supports commands for NAN Discovery, Services & Datapath 4. Add wifi_apps for providing better NAN API's and Peer management Co-authored-by: Shyamal Khachane <shyamal.khachane@espressif.com>
120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Unlicense OR CC0-1.0
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*/
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/* WiFi Aware (NAN) Publisher Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_system.h"
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#include "esp_wifi.h"
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#include "esp_nan.h"
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#include "esp_mac.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#define EXAMPLE_NAN_SERV_NAME CONFIG_ESP_WIFI_NAN_SVC_NAME
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#define EXAMPLE_NAN_MATCHING_FILTER CONFIG_ESP_WIFI_NAN_MATCHING_FILTER
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#ifdef CONFIG_ESP_WIFI_NAN_SERVICE_MESSAGE
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#define EXAMPLE_NAN_SVC_MSG CONFIG_ESP_WIFI_NAN_SERVICE_MESSAGE
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#else
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#define EXAMPLE_NAN_SVC_MSG "Welcome"
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#endif
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static EventGroupHandle_t nan_event_group;
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static int NAN_RECEIVE = BIT0;
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uint8_t g_peer_inst_id;
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static void nan_receive_event_handler(void *arg, esp_event_base_t event_base,
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int32_t event_id, void *event_data)
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{
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wifi_event_nan_receive_t *evt = (wifi_event_nan_receive_t *)event_data;
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g_peer_inst_id = evt->peer_inst_id;
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xEventGroupSetBits(nan_event_group, NAN_RECEIVE);
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}
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void wifi_nan_publish(void)
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{
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nan_event_group = xEventGroupCreate();
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esp_event_handler_instance_t instance_any_id;
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ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
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WIFI_EVENT_NAN_RECEIVE,
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&nan_receive_event_handler,
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NULL,
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&instance_any_id));
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/* Start NAN Discovery */
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wifi_nan_config_t nan_cfg = WIFI_NAN_CONFIG_DEFAULT();
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esp_netif_create_default_wifi_nan();
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esp_wifi_nan_start(&nan_cfg);
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/* Publish a service */
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uint8_t pub_id;
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wifi_nan_publish_cfg_t publish_cfg = {
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.service_name = EXAMPLE_NAN_SERV_NAME,
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#if CONFIG_EXAMPLE_NAN_PUBLISH_UNSOLICITED
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.type = NAN_PUBLISH_UNSOLICITED,
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#else
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.type = NAN_PUBLISH_SOLICITED,
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#endif
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.matching_filter = EXAMPLE_NAN_MATCHING_FILTER,
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.single_replied_event = 1,
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};
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pub_id = esp_wifi_nan_publish_service(&publish_cfg, false);
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if (pub_id == 0) {
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return;
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}
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while (1) {
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EventBits_t bits = xEventGroupWaitBits(nan_event_group, NAN_RECEIVE, pdFALSE, pdFALSE, portMAX_DELAY);
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if (bits & NAN_RECEIVE) {
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xEventGroupClearBits(nan_event_group, NAN_RECEIVE);
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wifi_nan_followup_params_t fup = {0};
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fup.inst_id = pub_id,
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fup.peer_inst_id = g_peer_inst_id,
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strlcpy(fup.svc_info, EXAMPLE_NAN_SVC_MSG, ESP_WIFI_MAX_SVC_INFO_LEN);
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/* Reply to the message from a subscriber */
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esp_wifi_nan_send_message(&fup);
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}
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vTaskDelay(10);
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}
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}
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void initialise_wifi(void)
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{
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ESP_ERROR_CHECK(esp_netif_init());
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM) );
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}
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void app_main(void)
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{
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//Initialize NVS
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK(ret);
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initialise_wifi();
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wifi_nan_publish();
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}
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