121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/*
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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 <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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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 "nvs.h"
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#include "nvs_flash.h"
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#include "esp_system.h"
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#include "esp_log.h"
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#include "esp_bt.h"
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#include "bt_app_core.h"
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#include "esp_bt_main.h"
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#include "esp_bt_device.h"
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#include "esp_gap_bt_api.h"
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#include "esp_hf_ag_api.h"
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#include "bt_app_hf.h"
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#include "gpio_pcm_config.h"
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#include "console_uart.h"
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#define BT_HF_AG_TAG "HF_AG_DEMO_MAIN"
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/* event for handler "hf_ag_hdl_stack_up */
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enum {
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BT_APP_EVT_STACK_UP = 0,
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};
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/* handler for bluetooth stack enabled events */
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static void bt_hf_hdl_stack_evt(uint16_t event, void *p_param)
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{
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ESP_LOGD(BT_HF_TAG, "%s evt %d", __func__, event);
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switch (event)
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{
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case BT_APP_EVT_STACK_UP:
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{
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/* set up device name */
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char *dev_name = "ESP_HFP_AG";
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esp_bt_dev_set_device_name(dev_name);
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esp_bt_hf_register_callback(bt_app_hf_cb);
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// init and register for HFP_AG functions
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esp_bt_hf_init(hf_peer_addr);
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/*
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* Set default parameters for Legacy Pairing
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* Use variable pin, input pin code when pairing
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*/
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esp_bt_pin_type_t pin_type = ESP_BT_PIN_TYPE_VARIABLE;
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esp_bt_pin_code_t pin_code;
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pin_code[0] = '0';
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pin_code[1] = '0';
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pin_code[2] = '0';
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pin_code[3] = '0';
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esp_bt_gap_set_pin(pin_type, 4, pin_code);
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/* set discoverable and connectable mode, wait to be connected */
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esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
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break;
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}
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default:
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ESP_LOGE(BT_HF_TAG, "%s unhandled evt %d", __func__, event);
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break;
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}
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}
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void app_main(void)
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{
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/* Initialize NVS — it is used to store PHY calibration data */
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES) {
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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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ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_BLE));
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esp_err_t err;
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esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
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if ((err = esp_bt_controller_init(&bt_cfg)) != ESP_OK) {
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ESP_LOGE(BT_HF_TAG, "%s initialize controller failed: %s\n", __func__, esp_err_to_name(ret));
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return;
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}
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if ((err = esp_bt_controller_enable(ESP_BT_MODE_CLASSIC_BT)) != ESP_OK) {
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ESP_LOGE(BT_HF_TAG, "%s enable controller failed: %s\n", __func__, esp_err_to_name(ret));
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return;
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}
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if ((err = esp_bluedroid_init()) != ESP_OK) {
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ESP_LOGE(BT_HF_TAG, "%s initialize bluedroid failed: %s\n", __func__, esp_err_to_name(ret));
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return;
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}
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if ((err = esp_bluedroid_enable()) != ESP_OK) {
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ESP_LOGE(BT_HF_TAG, "%s enable bluedroid failed: %s\n", __func__, esp_err_to_name(ret));
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return;
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}
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/* create application task */
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bt_app_task_start_up();
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/* Bluetooth device name, connection mode and profile set up */
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bt_app_work_dispatch(bt_hf_hdl_stack_evt, BT_APP_EVT_STACK_UP, NULL, 0, NULL);
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/* initialize console via UART */
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console_uart_init();
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/* configure the PCM interface and PINs used */
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app_gpio_pcm_io_cfg();
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/* configure externel chip for acoustic echo cancellation */
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#if ACOUSTIC_ECHO_CANCELLATION_ENABLE
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app_gpio_aec_io_cfg();
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#endif /* ACOUSTIC_ECHO_CANCELLATION_ENABLE */
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} |