The existing Bluetooth examples are split as: 1. examples/bluetooth/bluedroid - Bluedroid Host (BT + BLE) examples a. examples/bluetooth/bluedroid/classic_bt - Classic BT examples b. examples/bluetooth/bluedroid/ble - BLE examples c. examples/bluetooth/bluedroid/coex - Classic BT and BLE coex examples d. examples/bluetooth/bluedroid/hci - VHCI and HCI UART examples i. Rename ble_adv to controller_vhci_ble_adv and move it in hci folder 2. examples/bluetooth/nimble - NimBLE BLE Host + NimBLE Mesh examples 3. examples/bluetooth/esp_ble_mesh - ESP BLE Mesh examples 4. Update documentation references
694 lines
No EOL
23 KiB
C
694 lines
No EOL
23 KiB
C
/*
|
|
This example code is in the Public Domain (or CC0 licensed, at your option.)
|
|
|
|
Unless required by applicable law or agreed to in writing, this
|
|
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
CONDITIONS OF ANY KIND, either express or implied.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/task.h"
|
|
#include "freertos/timers.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 "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"
|
|
|
|
#define BT_AV_TAG "BT_AV"
|
|
#define BT_RC_CT_TAG "RCCT"
|
|
|
|
// AVRCP used transaction label
|
|
#define APP_RC_CT_TL_GET_CAPS (0)
|
|
#define APP_RC_CT_TL_RN_VOLUME_CHANGE (1)
|
|
|
|
/* event for handler "bt_av_hdl_stack_up */
|
|
enum {
|
|
BT_APP_EVT_STACK_UP = 0,
|
|
};
|
|
|
|
/* A2DP global state */
|
|
enum {
|
|
APP_AV_STATE_IDLE,
|
|
APP_AV_STATE_DISCOVERING,
|
|
APP_AV_STATE_DISCOVERED,
|
|
APP_AV_STATE_UNCONNECTED,
|
|
APP_AV_STATE_CONNECTING,
|
|
APP_AV_STATE_CONNECTED,
|
|
APP_AV_STATE_DISCONNECTING,
|
|
};
|
|
|
|
/* sub states of APP_AV_STATE_CONNECTED */
|
|
enum {
|
|
APP_AV_MEDIA_STATE_IDLE,
|
|
APP_AV_MEDIA_STATE_STARTING,
|
|
APP_AV_MEDIA_STATE_STARTED,
|
|
APP_AV_MEDIA_STATE_STOPPING,
|
|
};
|
|
|
|
#define BT_APP_HEART_BEAT_EVT (0xff00)
|
|
|
|
/// handler for bluetooth stack enabled events
|
|
static void bt_av_hdl_stack_evt(uint16_t event, void *p_param);
|
|
|
|
/// callback function for A2DP source
|
|
static void bt_app_a2d_cb(esp_a2d_cb_event_t event, esp_a2d_cb_param_t *param);
|
|
|
|
/// callback function for A2DP source audio data stream
|
|
static int32_t bt_app_a2d_data_cb(uint8_t *data, int32_t len);
|
|
|
|
/// callback function for AVRCP controller
|
|
static void bt_app_rc_ct_cb(esp_avrc_ct_cb_event_t event, esp_avrc_ct_cb_param_t *param);
|
|
|
|
static void a2d_app_heart_beat(void *arg);
|
|
|
|
/// A2DP application state machine
|
|
static void bt_app_av_sm_hdlr(uint16_t event, void *param);
|
|
|
|
/// avrc CT event handler
|
|
static void bt_av_hdl_avrc_ct_evt(uint16_t event, void *p_param);
|
|
|
|
/* A2DP application state machine handler for each state */
|
|
static void bt_app_av_state_unconnected(uint16_t event, void *param);
|
|
static void bt_app_av_state_connecting(uint16_t event, void *param);
|
|
static void bt_app_av_state_connected(uint16_t event, void *param);
|
|
static void bt_app_av_state_disconnecting(uint16_t event, void *param);
|
|
|
|
static esp_bd_addr_t s_peer_bda = {0};
|
|
static uint8_t s_peer_bdname[ESP_BT_GAP_MAX_BDNAME_LEN + 1];
|
|
static int s_a2d_state = APP_AV_STATE_IDLE;
|
|
static int s_media_state = APP_AV_MEDIA_STATE_IDLE;
|
|
static int s_intv_cnt = 0;
|
|
static int s_connecting_intv = 0;
|
|
static uint32_t s_pkt_cnt = 0;
|
|
static esp_avrc_rn_evt_cap_mask_t s_avrc_peer_rn_cap;
|
|
static TimerHandle_t s_tmr;
|
|
|
|
static char *bda2str(esp_bd_addr_t bda, char *str, size_t size)
|
|
{
|
|
if (bda == NULL || str == NULL || size < 18) {
|
|
return NULL;
|
|
}
|
|
|
|
uint8_t *p = bda;
|
|
sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
p[0], p[1], p[2], p[3], p[4], p[5]);
|
|
return str;
|
|
}
|
|
|
|
void app_main()
|
|
{
|
|
// Initialize NVS.
|
|
esp_err_t ret = nvs_flash_init();
|
|
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
|
|
ESP_ERROR_CHECK(nvs_flash_erase());
|
|
ret = nvs_flash_init();
|
|
}
|
|
ESP_ERROR_CHECK( ret );
|
|
|
|
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 (esp_bt_controller_init(&bt_cfg) != ESP_OK) {
|
|
ESP_LOGE(BT_AV_TAG, "%s initialize controller failed\n", __func__);
|
|
return;
|
|
}
|
|
|
|
if (esp_bt_controller_enable(ESP_BT_MODE_CLASSIC_BT) != ESP_OK) {
|
|
ESP_LOGE(BT_AV_TAG, "%s enable controller failed\n", __func__);
|
|
return;
|
|
}
|
|
|
|
if (esp_bluedroid_init() != ESP_OK) {
|
|
ESP_LOGE(BT_AV_TAG, "%s initialize bluedroid failed\n", __func__);
|
|
return;
|
|
}
|
|
|
|
if (esp_bluedroid_enable() != ESP_OK) {
|
|
ESP_LOGE(BT_AV_TAG, "%s enable bluedroid failed\n", __func__);
|
|
return;
|
|
}
|
|
|
|
/* create application task */
|
|
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);
|
|
|
|
#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 variable pin, input pin code when pairing
|
|
*/
|
|
esp_bt_pin_type_t pin_type = ESP_BT_PIN_TYPE_VARIABLE;
|
|
esp_bt_pin_code_t pin_code;
|
|
esp_bt_gap_set_pin(pin_type, 0, pin_code);
|
|
}
|
|
|
|
static bool get_name_from_eir(uint8_t *eir, uint8_t *bdname, uint8_t *bdname_len)
|
|
{
|
|
uint8_t *rmt_bdname = NULL;
|
|
uint8_t rmt_bdname_len = 0;
|
|
|
|
if (!eir) {
|
|
return false;
|
|
}
|
|
|
|
rmt_bdname = esp_bt_gap_resolve_eir_data(eir, ESP_BT_EIR_TYPE_CMPL_LOCAL_NAME, &rmt_bdname_len);
|
|
if (!rmt_bdname) {
|
|
rmt_bdname = esp_bt_gap_resolve_eir_data(eir, ESP_BT_EIR_TYPE_SHORT_LOCAL_NAME, &rmt_bdname_len);
|
|
}
|
|
|
|
if (rmt_bdname) {
|
|
if (rmt_bdname_len > ESP_BT_GAP_MAX_BDNAME_LEN) {
|
|
rmt_bdname_len = ESP_BT_GAP_MAX_BDNAME_LEN;
|
|
}
|
|
|
|
if (bdname) {
|
|
memcpy(bdname, rmt_bdname, rmt_bdname_len);
|
|
bdname[rmt_bdname_len] = '\0';
|
|
}
|
|
if (bdname_len) {
|
|
*bdname_len = rmt_bdname_len;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void filter_inquiry_scan_result(esp_bt_gap_cb_param_t *param)
|
|
{
|
|
char bda_str[18];
|
|
uint32_t cod = 0;
|
|
int32_t rssi = -129; /* invalid value */
|
|
uint8_t *eir = NULL;
|
|
esp_bt_gap_dev_prop_t *p;
|
|
|
|
ESP_LOGI(BT_AV_TAG, "Scanned device: %s", bda2str(param->disc_res.bda, bda_str, 18));
|
|
for (int i = 0; i < param->disc_res.num_prop; i++) {
|
|
p = param->disc_res.prop + i;
|
|
switch (p->type) {
|
|
case ESP_BT_GAP_DEV_PROP_COD:
|
|
cod = *(uint32_t *)(p->val);
|
|
ESP_LOGI(BT_AV_TAG, "--Class of Device: 0x%x", cod);
|
|
break;
|
|
case ESP_BT_GAP_DEV_PROP_RSSI:
|
|
rssi = *(int8_t *)(p->val);
|
|
ESP_LOGI(BT_AV_TAG, "--RSSI: %d", rssi);
|
|
break;
|
|
case ESP_BT_GAP_DEV_PROP_EIR:
|
|
eir = (uint8_t *)(p->val);
|
|
break;
|
|
case ESP_BT_GAP_DEV_PROP_BDNAME:
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* search for device with MAJOR service class as "rendering" in COD */
|
|
if (!esp_bt_gap_is_valid_cod(cod) ||
|
|
!(esp_bt_gap_get_cod_srvc(cod) & ESP_BT_COD_SRVC_RENDERING)) {
|
|
return;
|
|
}
|
|
|
|
/* search for device named "ESP_SPEAKER" in its extended inqury response */
|
|
if (eir) {
|
|
get_name_from_eir(eir, s_peer_bdname, NULL);
|
|
if (strcmp((char *)s_peer_bdname, "ESP_SPEAKER") != 0) {
|
|
return;
|
|
}
|
|
|
|
ESP_LOGI(BT_AV_TAG, "Found a target device, address %s, name %s", bda_str, s_peer_bdname);
|
|
s_a2d_state = APP_AV_STATE_DISCOVERED;
|
|
memcpy(s_peer_bda, param->disc_res.bda, ESP_BD_ADDR_LEN);
|
|
ESP_LOGI(BT_AV_TAG, "Cancel device discovery ...");
|
|
esp_bt_gap_cancel_discovery();
|
|
}
|
|
}
|
|
|
|
|
|
void bt_app_gap_cb(esp_bt_gap_cb_event_t event, esp_bt_gap_cb_param_t *param)
|
|
{
|
|
switch (event) {
|
|
case ESP_BT_GAP_DISC_RES_EVT: {
|
|
filter_inquiry_scan_result(param);
|
|
break;
|
|
}
|
|
case ESP_BT_GAP_DISC_STATE_CHANGED_EVT: {
|
|
if (param->disc_st_chg.state == ESP_BT_GAP_DISCOVERY_STOPPED) {
|
|
if (s_a2d_state == APP_AV_STATE_DISCOVERED) {
|
|
s_a2d_state = APP_AV_STATE_CONNECTING;
|
|
ESP_LOGI(BT_AV_TAG, "Device discovery stopped.");
|
|
ESP_LOGI(BT_AV_TAG, "a2dp connecting to peer: %s", s_peer_bdname);
|
|
esp_a2d_source_connect(s_peer_bda);
|
|
} else {
|
|
// not discovered, continue to discover
|
|
ESP_LOGI(BT_AV_TAG, "Device discovery failed, continue to discover...");
|
|
esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, 10, 0);
|
|
}
|
|
} else if (param->disc_st_chg.state == ESP_BT_GAP_DISCOVERY_STARTED) {
|
|
ESP_LOGI(BT_AV_TAG, "Discovery started.");
|
|
}
|
|
break;
|
|
}
|
|
case ESP_BT_GAP_RMT_SRVCS_EVT:
|
|
case ESP_BT_GAP_RMT_SRVC_REC_EVT:
|
|
break;
|
|
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;
|
|
}
|
|
case ESP_BT_GAP_PIN_REQ_EVT: {
|
|
ESP_LOGI(BT_AV_TAG, "ESP_BT_GAP_PIN_REQ_EVT min_16_digit:%d", param->pin_req.min_16_digit);
|
|
if (param->pin_req.min_16_digit) {
|
|
ESP_LOGI(BT_AV_TAG, "Input pin code: 0000 0000 0000 0000");
|
|
esp_bt_pin_code_t pin_code = {0};
|
|
esp_bt_gap_pin_reply(param->pin_req.bda, true, 16, pin_code);
|
|
} else {
|
|
ESP_LOGI(BT_AV_TAG, "Input pin code: 1234");
|
|
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_pin_reply(param->pin_req.bda, true, 4, pin_code);
|
|
}
|
|
break;
|
|
}
|
|
|
|
#if (CONFIG_BT_SSP_ENABLED == true)
|
|
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;
|
|
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;
|
|
case ESP_BT_GAP_KEY_REQ_EVT:
|
|
ESP_LOGI(BT_AV_TAG, "ESP_BT_GAP_KEY_REQ_EVT Please enter passkey!");
|
|
break;
|
|
#endif
|
|
|
|
default: {
|
|
ESP_LOGI(BT_AV_TAG, "event: %d", event);
|
|
break;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void bt_av_hdl_stack_evt(uint16_t event, void *p_param)
|
|
{
|
|
ESP_LOGD(BT_AV_TAG, "%s evt %d", __func__, event);
|
|
switch (event) {
|
|
case BT_APP_EVT_STACK_UP: {
|
|
/* set up device name */
|
|
char *dev_name = "ESP_A2DP_SRC";
|
|
esp_bt_dev_set_device_name(dev_name);
|
|
|
|
/* register GAP callback function */
|
|
esp_bt_gap_register_callback(bt_app_gap_cb);
|
|
|
|
/* initialize AVRCP controller */
|
|
esp_avrc_ct_init();
|
|
esp_avrc_ct_register_callback(bt_app_rc_ct_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);
|
|
|
|
/* initialize A2DP source */
|
|
esp_a2d_register_callback(&bt_app_a2d_cb);
|
|
esp_a2d_source_register_data_callback(bt_app_a2d_data_cb);
|
|
esp_a2d_source_init();
|
|
|
|
/* set discoverable and connectable mode */
|
|
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
|
|
|
|
/* start device discovery */
|
|
ESP_LOGI(BT_AV_TAG, "Starting device discovery...");
|
|
s_a2d_state = APP_AV_STATE_DISCOVERING;
|
|
esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, 10, 0);
|
|
|
|
/* create and start heart beat timer */
|
|
do {
|
|
int tmr_id = 0;
|
|
s_tmr = xTimerCreate("connTmr", (10000 / portTICK_RATE_MS),
|
|
pdTRUE, (void *)tmr_id, a2d_app_heart_beat);
|
|
xTimerStart(s_tmr, portMAX_DELAY);
|
|
} while (0);
|
|
break;
|
|
}
|
|
default:
|
|
ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void bt_app_a2d_cb(esp_a2d_cb_event_t event, esp_a2d_cb_param_t *param)
|
|
{
|
|
bt_app_work_dispatch(bt_app_av_sm_hdlr, event, param, sizeof(esp_a2d_cb_param_t), NULL);
|
|
}
|
|
|
|
static int32_t bt_app_a2d_data_cb(uint8_t *data, int32_t len)
|
|
{
|
|
if (len < 0 || data == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
// generate random sequence
|
|
int val = rand() % (1 << 16);
|
|
for (int i = 0; i < (len >> 1); i++) {
|
|
data[(i << 1)] = val & 0xff;
|
|
data[(i << 1) + 1] = (val >> 8) & 0xff;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static void a2d_app_heart_beat(void *arg)
|
|
{
|
|
bt_app_work_dispatch(bt_app_av_sm_hdlr, BT_APP_HEART_BEAT_EVT, NULL, 0, NULL);
|
|
}
|
|
|
|
static void bt_app_av_sm_hdlr(uint16_t event, void *param)
|
|
{
|
|
ESP_LOGI(BT_AV_TAG, "%s state %d, evt 0x%x", __func__, s_a2d_state, event);
|
|
switch (s_a2d_state) {
|
|
case APP_AV_STATE_DISCOVERING:
|
|
case APP_AV_STATE_DISCOVERED:
|
|
break;
|
|
case APP_AV_STATE_UNCONNECTED:
|
|
bt_app_av_state_unconnected(event, param);
|
|
break;
|
|
case APP_AV_STATE_CONNECTING:
|
|
bt_app_av_state_connecting(event, param);
|
|
break;
|
|
case APP_AV_STATE_CONNECTED:
|
|
bt_app_av_state_connected(event, param);
|
|
break;
|
|
case APP_AV_STATE_DISCONNECTING:
|
|
bt_app_av_state_disconnecting(event, param);
|
|
break;
|
|
default:
|
|
ESP_LOGE(BT_AV_TAG, "%s invalid state %d", __func__, s_a2d_state);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void bt_app_av_state_unconnected(uint16_t event, void *param)
|
|
{
|
|
switch (event) {
|
|
case ESP_A2D_CONNECTION_STATE_EVT:
|
|
case ESP_A2D_AUDIO_STATE_EVT:
|
|
case ESP_A2D_AUDIO_CFG_EVT:
|
|
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
|
|
break;
|
|
case BT_APP_HEART_BEAT_EVT: {
|
|
uint8_t *p = s_peer_bda;
|
|
ESP_LOGI(BT_AV_TAG, "a2dp connecting to peer: %02x:%02x:%02x:%02x:%02x:%02x",
|
|
p[0], p[1], p[2], p[3], p[4], p[5]);
|
|
esp_a2d_source_connect(s_peer_bda);
|
|
s_a2d_state = APP_AV_STATE_CONNECTING;
|
|
s_connecting_intv = 0;
|
|
break;
|
|
}
|
|
default:
|
|
ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void bt_app_av_state_connecting(uint16_t event, void *param)
|
|
{
|
|
esp_a2d_cb_param_t *a2d = NULL;
|
|
switch (event) {
|
|
case ESP_A2D_CONNECTION_STATE_EVT: {
|
|
a2d = (esp_a2d_cb_param_t *)(param);
|
|
if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_CONNECTED) {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp connected");
|
|
s_a2d_state = APP_AV_STATE_CONNECTED;
|
|
s_media_state = APP_AV_MEDIA_STATE_IDLE;
|
|
esp_bt_gap_set_scan_mode(ESP_BT_NON_CONNECTABLE, ESP_BT_NON_DISCOVERABLE);
|
|
} else if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_DISCONNECTED) {
|
|
s_a2d_state = APP_AV_STATE_UNCONNECTED;
|
|
}
|
|
break;
|
|
}
|
|
case ESP_A2D_AUDIO_STATE_EVT:
|
|
case ESP_A2D_AUDIO_CFG_EVT:
|
|
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
|
|
break;
|
|
case BT_APP_HEART_BEAT_EVT:
|
|
if (++s_connecting_intv >= 2) {
|
|
s_a2d_state = APP_AV_STATE_UNCONNECTED;
|
|
s_connecting_intv = 0;
|
|
}
|
|
break;
|
|
default:
|
|
ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void bt_app_av_media_proc(uint16_t event, void *param)
|
|
{
|
|
esp_a2d_cb_param_t *a2d = NULL;
|
|
switch (s_media_state) {
|
|
case APP_AV_MEDIA_STATE_IDLE: {
|
|
if (event == BT_APP_HEART_BEAT_EVT) {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp media ready checking ...");
|
|
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_CHECK_SRC_RDY);
|
|
} else if (event == ESP_A2D_MEDIA_CTRL_ACK_EVT) {
|
|
a2d = (esp_a2d_cb_param_t *)(param);
|
|
if (a2d->media_ctrl_stat.cmd == ESP_A2D_MEDIA_CTRL_CHECK_SRC_RDY &&
|
|
a2d->media_ctrl_stat.status == ESP_A2D_MEDIA_CTRL_ACK_SUCCESS) {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp media ready, starting ...");
|
|
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_START);
|
|
s_media_state = APP_AV_MEDIA_STATE_STARTING;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case APP_AV_MEDIA_STATE_STARTING: {
|
|
if (event == ESP_A2D_MEDIA_CTRL_ACK_EVT) {
|
|
a2d = (esp_a2d_cb_param_t *)(param);
|
|
if (a2d->media_ctrl_stat.cmd == ESP_A2D_MEDIA_CTRL_START &&
|
|
a2d->media_ctrl_stat.status == ESP_A2D_MEDIA_CTRL_ACK_SUCCESS) {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp media start successfully.");
|
|
s_intv_cnt = 0;
|
|
s_media_state = APP_AV_MEDIA_STATE_STARTED;
|
|
} else {
|
|
// not started succesfully, transfer to idle state
|
|
ESP_LOGI(BT_AV_TAG, "a2dp media start failed.");
|
|
s_media_state = APP_AV_MEDIA_STATE_IDLE;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case APP_AV_MEDIA_STATE_STARTED: {
|
|
if (event == BT_APP_HEART_BEAT_EVT) {
|
|
if (++s_intv_cnt >= 10) {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp media stopping...");
|
|
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_STOP);
|
|
s_media_state = APP_AV_MEDIA_STATE_STOPPING;
|
|
s_intv_cnt = 0;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case APP_AV_MEDIA_STATE_STOPPING: {
|
|
if (event == ESP_A2D_MEDIA_CTRL_ACK_EVT) {
|
|
a2d = (esp_a2d_cb_param_t *)(param);
|
|
if (a2d->media_ctrl_stat.cmd == ESP_A2D_MEDIA_CTRL_STOP &&
|
|
a2d->media_ctrl_stat.status == ESP_A2D_MEDIA_CTRL_ACK_SUCCESS) {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp media stopped successfully, disconnecting...");
|
|
s_media_state = APP_AV_MEDIA_STATE_IDLE;
|
|
esp_a2d_source_disconnect(s_peer_bda);
|
|
s_a2d_state = APP_AV_STATE_DISCONNECTING;
|
|
} else {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp media stopping...");
|
|
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_STOP);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void bt_app_av_state_connected(uint16_t event, void *param)
|
|
{
|
|
esp_a2d_cb_param_t *a2d = NULL;
|
|
switch (event) {
|
|
case ESP_A2D_CONNECTION_STATE_EVT: {
|
|
a2d = (esp_a2d_cb_param_t *)(param);
|
|
if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_DISCONNECTED) {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp disconnected");
|
|
s_a2d_state = APP_AV_STATE_UNCONNECTED;
|
|
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
|
|
}
|
|
break;
|
|
}
|
|
case ESP_A2D_AUDIO_STATE_EVT: {
|
|
a2d = (esp_a2d_cb_param_t *)(param);
|
|
if (ESP_A2D_AUDIO_STATE_STARTED == a2d->audio_stat.state) {
|
|
s_pkt_cnt = 0;
|
|
}
|
|
break;
|
|
}
|
|
case ESP_A2D_AUDIO_CFG_EVT:
|
|
// not suppposed to occur for A2DP source
|
|
break;
|
|
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
|
|
case BT_APP_HEART_BEAT_EVT: {
|
|
bt_app_av_media_proc(event, param);
|
|
break;
|
|
}
|
|
default:
|
|
ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void bt_app_av_state_disconnecting(uint16_t event, void *param)
|
|
{
|
|
esp_a2d_cb_param_t *a2d = NULL;
|
|
switch (event) {
|
|
case ESP_A2D_CONNECTION_STATE_EVT: {
|
|
a2d = (esp_a2d_cb_param_t *)(param);
|
|
if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_DISCONNECTED) {
|
|
ESP_LOGI(BT_AV_TAG, "a2dp disconnected");
|
|
s_a2d_state = APP_AV_STATE_UNCONNECTED;
|
|
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
|
|
}
|
|
break;
|
|
}
|
|
case ESP_A2D_AUDIO_STATE_EVT:
|
|
case ESP_A2D_AUDIO_CFG_EVT:
|
|
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
|
|
case BT_APP_HEART_BEAT_EVT:
|
|
break;
|
|
default:
|
|
ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void bt_app_rc_ct_cb(esp_avrc_ct_cb_event_t event, esp_avrc_ct_cb_param_t *param)
|
|
{
|
|
switch (event) {
|
|
case ESP_AVRC_CT_METADATA_RSP_EVT:
|
|
case ESP_AVRC_CT_CONNECTION_STATE_EVT:
|
|
case ESP_AVRC_CT_PASSTHROUGH_RSP_EVT:
|
|
case ESP_AVRC_CT_CHANGE_NOTIFY_EVT:
|
|
case ESP_AVRC_CT_REMOTE_FEATURES_EVT:
|
|
case ESP_AVRC_CT_GET_RN_CAPABILITIES_RSP_EVT:
|
|
case ESP_AVRC_CT_SET_ABSOLUTE_VOLUME_RSP_EVT: {
|
|
bt_app_work_dispatch(bt_av_hdl_avrc_ct_evt, event, param, sizeof(esp_avrc_ct_cb_param_t), NULL);
|
|
break;
|
|
}
|
|
default:
|
|
ESP_LOGE(BT_RC_CT_TAG, "Invalid AVRC event: %d", event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void bt_av_volume_changed(void)
|
|
{
|
|
if (esp_avrc_rn_evt_bit_mask_operation(ESP_AVRC_BIT_MASK_OP_TEST, &s_avrc_peer_rn_cap,
|
|
ESP_AVRC_RN_VOLUME_CHANGE)) {
|
|
esp_avrc_ct_send_register_notification_cmd(APP_RC_CT_TL_RN_VOLUME_CHANGE, ESP_AVRC_RN_VOLUME_CHANGE, 0);
|
|
}
|
|
}
|
|
|
|
void bt_av_notify_evt_handler(uint8_t event_id, esp_avrc_rn_param_t *event_parameter)
|
|
{
|
|
switch (event_id) {
|
|
case ESP_AVRC_RN_VOLUME_CHANGE:
|
|
ESP_LOGI(BT_RC_CT_TAG, "Volume changed: %d", event_parameter->volume);
|
|
ESP_LOGI(BT_RC_CT_TAG, "Set absolute volume: volume %d", event_parameter->volume + 5);
|
|
esp_avrc_ct_send_set_absolute_volume_cmd(APP_RC_CT_TL_RN_VOLUME_CHANGE, event_parameter->volume + 5);
|
|
bt_av_volume_changed();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void bt_av_hdl_avrc_ct_evt(uint16_t event, void *p_param)
|
|
{
|
|
ESP_LOGD(BT_RC_CT_TAG, "%s evt %d", __func__, event);
|
|
esp_avrc_ct_cb_param_t *rc = (esp_avrc_ct_cb_param_t *)(p_param);
|
|
switch (event) {
|
|
case ESP_AVRC_CT_CONNECTION_STATE_EVT: {
|
|
uint8_t *bda = rc->conn_stat.remote_bda;
|
|
ESP_LOGI(BT_RC_CT_TAG, "AVRC conn_state evt: state %d, [%02x:%02x:%02x:%02x:%02x:%02x]",
|
|
rc->conn_stat.connected, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
|
|
|
|
if (rc->conn_stat.connected) {
|
|
// get remote supported event_ids of peer AVRCP Target
|
|
esp_avrc_ct_send_get_rn_capabilities_cmd(APP_RC_CT_TL_GET_CAPS);
|
|
} else {
|
|
// clear peer notification capability record
|
|
s_avrc_peer_rn_cap.bits = 0;
|
|
}
|
|
break;
|
|
}
|
|
case ESP_AVRC_CT_PASSTHROUGH_RSP_EVT: {
|
|
ESP_LOGI(BT_RC_CT_TAG, "AVRC passthrough rsp: key_code 0x%x, key_state %d", rc->psth_rsp.key_code, rc->psth_rsp.key_state);
|
|
break;
|
|
}
|
|
case ESP_AVRC_CT_METADATA_RSP_EVT: {
|
|
ESP_LOGI(BT_RC_CT_TAG, "AVRC metadata rsp: attribute id 0x%x, %s", rc->meta_rsp.attr_id, rc->meta_rsp.attr_text);
|
|
free(rc->meta_rsp.attr_text);
|
|
break;
|
|
}
|
|
case ESP_AVRC_CT_CHANGE_NOTIFY_EVT: {
|
|
ESP_LOGI(BT_RC_CT_TAG, "AVRC event notification: %d", rc->change_ntf.event_id);
|
|
bt_av_notify_evt_handler(rc->change_ntf.event_id, &rc->change_ntf.event_parameter);
|
|
break;
|
|
}
|
|
case ESP_AVRC_CT_REMOTE_FEATURES_EVT: {
|
|
ESP_LOGI(BT_RC_CT_TAG, "AVRC remote features %x, TG features %x", rc->rmt_feats.feat_mask, rc->rmt_feats.tg_feat_flag);
|
|
break;
|
|
}
|
|
case ESP_AVRC_CT_GET_RN_CAPABILITIES_RSP_EVT: {
|
|
ESP_LOGI(BT_RC_CT_TAG, "remote rn_cap: count %d, bitmask 0x%x", rc->get_rn_caps_rsp.cap_count,
|
|
rc->get_rn_caps_rsp.evt_set.bits);
|
|
s_avrc_peer_rn_cap.bits = rc->get_rn_caps_rsp.evt_set.bits;
|
|
|
|
bt_av_volume_changed();
|
|
break;
|
|
}
|
|
case ESP_AVRC_CT_SET_ABSOLUTE_VOLUME_RSP_EVT: {
|
|
ESP_LOGI(BT_RC_CT_TAG, "Set absolute volume rsp: volume %d", rc->set_volume_rsp.volume);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
ESP_LOGE(BT_RC_CT_TAG, "%s unhandled evt %d", __func__, event);
|
|
break;
|
|
}
|
|
} |