mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
215 lines
7.3 KiB
C
215 lines
7.3 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Unlicense OR CC0-1.0
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/task.h"
|
|
#include "nvs.h"
|
|
#include "nvs_flash.h"
|
|
#include "esp_system.h"
|
|
#include "esp_log.h"
|
|
|
|
#include "esp_bt.h"
|
|
#include "bt_app_core.h"
|
|
#include "bt_app_av.h"
|
|
#include "esp_bt_main.h"
|
|
#include "esp_bt_device.h"
|
|
#include "esp_gap_bt_api.h"
|
|
#include "esp_a2dp_api.h"
|
|
#include "esp_avrc_api.h"
|
|
#include "driver/i2s.h"
|
|
|
|
/* device name */
|
|
#define LOCAL_DEVICE_NAME "ESP_SPEAKER"
|
|
|
|
/* event for stack up */
|
|
enum {
|
|
BT_APP_EVT_STACK_UP = 0,
|
|
};
|
|
|
|
/********************************
|
|
* STATIC FUNCTION DECLARATIONS
|
|
*******************************/
|
|
|
|
/* GAP callback function */
|
|
static void bt_app_gap_cb(esp_bt_gap_cb_event_t event, esp_bt_gap_cb_param_t *param);
|
|
/* handler for bluetooth stack enabled events */
|
|
static void bt_av_hdl_stack_evt(uint16_t event, void *p_param);
|
|
|
|
/*******************************
|
|
* STATIC FUNCTION DEFINITIONS
|
|
******************************/
|
|
|
|
static void bt_app_gap_cb(esp_bt_gap_cb_event_t event, esp_bt_gap_cb_param_t *param)
|
|
{
|
|
switch (event) {
|
|
/* when authentication completed, this event comes */
|
|
case ESP_BT_GAP_AUTH_CMPL_EVT: {
|
|
if (param->auth_cmpl.stat == ESP_BT_STATUS_SUCCESS) {
|
|
ESP_LOGI(BT_AV_TAG, "authentication success: %s", param->auth_cmpl.device_name);
|
|
esp_log_buffer_hex(BT_AV_TAG, param->auth_cmpl.bda, ESP_BD_ADDR_LEN);
|
|
} else {
|
|
ESP_LOGE(BT_AV_TAG, "authentication failed, status: %d", param->auth_cmpl.stat);
|
|
}
|
|
break;
|
|
}
|
|
|
|
#if (CONFIG_BT_SSP_ENABLED == true)
|
|
/* when Security Simple Pairing user confirmation requested, this event comes */
|
|
case ESP_BT_GAP_CFM_REQ_EVT:
|
|
ESP_LOGI(BT_AV_TAG, "ESP_BT_GAP_CFM_REQ_EVT Please compare the numeric value: %d", param->cfm_req.num_val);
|
|
esp_bt_gap_ssp_confirm_reply(param->cfm_req.bda, true);
|
|
break;
|
|
/* when Security Simple Pairing passkey notified, this event comes */
|
|
case ESP_BT_GAP_KEY_NOTIF_EVT:
|
|
ESP_LOGI(BT_AV_TAG, "ESP_BT_GAP_KEY_NOTIF_EVT passkey: %d", param->key_notif.passkey);
|
|
break;
|
|
/* when Security Simple Pairing passkey requested, this event comes */
|
|
case ESP_BT_GAP_KEY_REQ_EVT:
|
|
ESP_LOGI(BT_AV_TAG, "ESP_BT_GAP_KEY_REQ_EVT Please enter passkey!");
|
|
break;
|
|
#endif
|
|
|
|
/* when GAP mode changed, this event comes */
|
|
case ESP_BT_GAP_MODE_CHG_EVT:
|
|
ESP_LOGI(BT_AV_TAG, "ESP_BT_GAP_MODE_CHG_EVT mode: %d", param->mode_chg.mode);
|
|
break;
|
|
/* others */
|
|
default: {
|
|
ESP_LOGI(BT_AV_TAG, "event: %d", event);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void bt_av_hdl_stack_evt(uint16_t event, void *p_param)
|
|
{
|
|
ESP_LOGD(BT_AV_TAG, "%s event: %d", __func__, event);
|
|
|
|
switch (event) {
|
|
/* when do the stack up, this event comes */
|
|
case BT_APP_EVT_STACK_UP: {
|
|
esp_bt_dev_set_device_name(LOCAL_DEVICE_NAME);
|
|
esp_bt_gap_register_callback(bt_app_gap_cb);
|
|
|
|
assert(esp_avrc_ct_init() == ESP_OK);
|
|
esp_avrc_ct_register_callback(bt_app_rc_ct_cb);
|
|
assert(esp_avrc_tg_init() == ESP_OK);
|
|
esp_avrc_tg_register_callback(bt_app_rc_tg_cb);
|
|
|
|
esp_avrc_rn_evt_cap_mask_t evt_set = {0};
|
|
esp_avrc_rn_evt_bit_mask_operation(ESP_AVRC_BIT_MASK_OP_SET, &evt_set, ESP_AVRC_RN_VOLUME_CHANGE);
|
|
assert(esp_avrc_tg_set_rn_evt_cap(&evt_set) == ESP_OK);
|
|
|
|
assert(esp_a2d_sink_init() == ESP_OK);
|
|
esp_a2d_register_callback(&bt_app_a2d_cb);
|
|
esp_a2d_sink_register_data_callback(bt_app_a2d_data_cb);
|
|
|
|
/* set discoverable and connectable mode, wait to be connected */
|
|
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
|
|
break;
|
|
}
|
|
/* others */
|
|
default:
|
|
ESP_LOGE(BT_AV_TAG, "%s unhandled event: %d", __func__, event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*******************************
|
|
* MAIN ENTRY POINT
|
|
******************************/
|
|
|
|
void app_main(void)
|
|
{
|
|
/* initialize NVS — it is used to store PHY calibration data */
|
|
esp_err_t err = nvs_flash_init();
|
|
if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
|
|
ESP_ERROR_CHECK(nvs_flash_erase());
|
|
err = nvs_flash_init();
|
|
}
|
|
ESP_ERROR_CHECK(err);
|
|
|
|
/*
|
|
* This example only uses the functions of Classical Bluetooth.
|
|
* So release the controller memory for Bluetooth Low Energy.
|
|
*/
|
|
ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_BLE));
|
|
|
|
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
|
|
if ((err = esp_bt_controller_init(&bt_cfg)) != ESP_OK) {
|
|
ESP_LOGE(BT_AV_TAG, "%s initialize controller failed: %s\n", __func__, esp_err_to_name(err));
|
|
return;
|
|
}
|
|
if ((err = esp_bt_controller_enable(ESP_BT_MODE_CLASSIC_BT)) != ESP_OK) {
|
|
ESP_LOGE(BT_AV_TAG, "%s enable controller failed: %s\n", __func__, esp_err_to_name(err));
|
|
return;
|
|
}
|
|
if ((err = esp_bluedroid_init()) != ESP_OK) {
|
|
ESP_LOGE(BT_AV_TAG, "%s initialize bluedroid failed: %s\n", __func__, esp_err_to_name(err));
|
|
return;
|
|
}
|
|
if ((err = esp_bluedroid_enable()) != ESP_OK) {
|
|
ESP_LOGE(BT_AV_TAG, "%s enable bluedroid failed: %s\n", __func__, esp_err_to_name(err));
|
|
return;
|
|
}
|
|
|
|
/* I2S configuration parameters */
|
|
i2s_config_t i2s_config = {
|
|
#ifdef CONFIG_EXAMPLE_A2DP_SINK_OUTPUT_INTERNAL_DAC
|
|
.mode = I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_DAC_BUILT_IN,
|
|
#else
|
|
.mode = I2S_MODE_MASTER | I2S_MODE_TX, /* only TX */
|
|
#endif
|
|
.sample_rate = 44100,
|
|
.bits_per_sample = 16,
|
|
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, /* 2-channels */
|
|
.communication_format = I2S_COMM_FORMAT_STAND_MSB,
|
|
.dma_buf_count = 6,
|
|
.dma_buf_len = 60,
|
|
.intr_alloc_flags = 0, /* default interrupt priority */
|
|
.tx_desc_auto_clear = true /* auto clear tx descriptor on underflow */
|
|
};
|
|
|
|
/* enable I2S */
|
|
i2s_driver_install(0, &i2s_config, 0, NULL);
|
|
#ifdef CONFIG_EXAMPLE_A2DP_SINK_OUTPUT_INTERNAL_DAC
|
|
i2s_set_dac_mode(I2S_DAC_CHANNEL_BOTH_EN);
|
|
i2s_set_pin(0, NULL);
|
|
#else
|
|
i2s_pin_config_t pin_config = {
|
|
.bck_io_num = CONFIG_EXAMPLE_I2S_BCK_PIN,
|
|
.ws_io_num = CONFIG_EXAMPLE_I2S_LRCK_PIN,
|
|
.data_out_num = CONFIG_EXAMPLE_I2S_DATA_PIN,
|
|
.data_in_num = -1 /* not used */
|
|
};
|
|
i2s_set_pin(0, &pin_config);
|
|
#endif
|
|
|
|
#if (CONFIG_BT_SSP_ENABLED == true)
|
|
/* set default parameters for Secure Simple Pairing */
|
|
esp_bt_sp_param_t param_type = ESP_BT_SP_IOCAP_MODE;
|
|
esp_bt_io_cap_t iocap = ESP_BT_IO_CAP_IO;
|
|
esp_bt_gap_set_security_param(param_type, &iocap, sizeof(uint8_t));
|
|
#endif
|
|
|
|
/* set default parameters for Legacy Pairing (use fixed pin code 1234) */
|
|
esp_bt_pin_type_t pin_type = ESP_BT_PIN_TYPE_FIXED;
|
|
esp_bt_pin_code_t pin_code;
|
|
pin_code[0] = '1';
|
|
pin_code[1] = '2';
|
|
pin_code[2] = '3';
|
|
pin_code[3] = '4';
|
|
esp_bt_gap_set_pin(pin_type, 4, pin_code);
|
|
|
|
bt_app_task_start_up();
|
|
/* bluetooth device name, connection mode and profile set up */
|
|
bt_app_work_dispatch(bt_av_hdl_stack_evt, BT_APP_EVT_STACK_UP, NULL, 0, NULL);
|
|
}
|