kopia lustrzana https://github.com/espressif/esp-idf
146 wiersze
4.6 KiB
C
146 wiersze
4.6 KiB
C
// Copyright 2015-2016 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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// 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 <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 "bt_app_av.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_a2dp_api.h"
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#include "esp_avrc_api.h"
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#include "driver/i2s.h"
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/* event for handler "bt_av_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_av_hdl_stack_evt(uint16_t event, void *p_param);
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void app_main()
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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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i2s_config_t i2s_config = {
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#ifdef CONFIG_A2DP_SINK_OUTPUT_INTERNAL_DAC
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.mode = I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_DAC_BUILT_IN,
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#else
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.mode = I2S_MODE_MASTER | I2S_MODE_TX, // Only TX
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#endif
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.sample_rate = 44100,
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.bits_per_sample = 16,
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.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, //2-channels
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.communication_format = I2S_COMM_FORMAT_I2S_MSB,
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.dma_buf_count = 6,
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.dma_buf_len = 60, //
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.intr_alloc_flags = ESP_INTR_FLAG_LEVEL1 //Interrupt level 1
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};
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i2s_driver_install(0, &i2s_config, 0, NULL);
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#ifdef CONFIG_A2DP_SINK_OUTPUT_INTERNAL_DAC
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i2s_set_dac_mode(I2S_DAC_CHANNEL_BOTH_EN);
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i2s_set_pin(0, NULL);
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#else
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i2s_pin_config_t pin_config = {
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.bck_io_num = CONFIG_I2S_BCK_PIN,
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.ws_io_num = CONFIG_I2S_LRCK_PIN,
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.data_out_num = CONFIG_I2S_DATA_PIN,
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.data_in_num = -1 //Not used
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};
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i2s_set_pin(0, &pin_config);
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#endif
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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_AV_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_AV_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_AV_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_AV_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_av_hdl_stack_evt, BT_APP_EVT_STACK_UP, NULL, 0, NULL);
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}
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static void bt_av_hdl_stack_evt(uint16_t event, void *p_param)
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{
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ESP_LOGD(BT_AV_TAG, "%s evt %d", __func__, event);
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switch (event) {
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case BT_APP_EVT_STACK_UP: {
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/* set up device name */
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char *dev_name = "ESP_SPEAKER";
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esp_bt_dev_set_device_name(dev_name);
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/* initialize A2DP sink */
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esp_a2d_register_callback(&bt_app_a2d_cb);
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esp_a2d_sink_register_data_callback(bt_app_a2d_data_cb);
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esp_a2d_sink_init();
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/* initialize AVRCP controller */
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esp_avrc_ct_init();
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esp_avrc_ct_register_callback(bt_app_rc_ct_cb);
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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_SCAN_MODE_CONNECTABLE_DISCOVERABLE);
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break;
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}
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default:
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ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
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break;
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}
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}
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