Add init & deinit event for a2dp

components/bt/host/bluedroid/api/include/api/esp_a2dp_api.h

@@ -84,12 +84,19 @@ typedef enum {
     ESP_A2D_MEDIA_CTRL_SUSPEND,                /*!< command to suspend media transmission  */
 } esp_a2d_media_ctrl_t;
 
+/// Bluetooth A2DP Initiation states
+typedef enum {
+    ESP_A2D_DEINIT_SUCCESS = 0,                /*!< A2DP profile deinit successful event */
+    ESP_A2D_INIT_SUCCESS                       /*!< A2DP profile deinit successful event */
+} esp_a2d_init_state_t;
+
 /// A2DP callback events
 typedef enum {
     ESP_A2D_CONNECTION_STATE_EVT = 0,          /*!< connection state changed event */
     ESP_A2D_AUDIO_STATE_EVT,                   /*!< audio stream transmission state changed event */
     ESP_A2D_AUDIO_CFG_EVT,                     /*!< audio codec is configured, only used for A2DP SINK */
     ESP_A2D_MEDIA_CTRL_ACK_EVT,                /*!< acknowledge event in response to media control commands */
+    ESP_A2D_PROF_STATE_EVT,                    /*!< indicate a2dp init&deinit complete */
 } esp_a2d_cb_event_t;
 
 /// A2DP state callback parameters
@@ -126,6 +133,12 @@ typedef union {
         esp_a2d_media_ctrl_t cmd;              /*!< media control commands to acknowledge */
         esp_a2d_media_ctrl_ack_t status;       /*!< acknowledgement to media control commands */
     } media_ctrl_stat;                         /*!< status in acknowledgement to media control commands */
+    /**
+     * @brief ESP_A2D_PROF_STATE_EVT
+     */
+    struct a2d_prof_stat_param {
+        esp_a2d_init_state_t init_state;       /*!< a2dp profile state param */
+    } a2d_prof_stat;                           /*!< status to indicate a2d prof init or deinit */
 } esp_a2d_cb_param_t;
 
 /**
@@ -194,7 +207,8 @@ esp_err_t esp_a2d_sink_register_data_callback(esp_a2d_sink_data_cb_t callback);
 /**
  *
  * @brief           Initialize the bluetooth A2DP sink module. This function should be called
- *                  after esp_bluedroid_enable() completes successfully. Note: A2DP can work independently.
+ *                  after esp_bluedroid_enable() completes successfully, and ESP_A2D_PROF_STATE_EVT
+ *                  with ESP_A2D_INIT_SUCCESS will reported to the APP layer. Note: A2DP can work independently.
  *                  If you want to use AVRC together, you should initiate AVRC first.
  *
  * @return
@@ -209,7 +223,8 @@ esp_err_t esp_a2d_sink_init(void);
 /**
  *
  * @brief           De-initialize for A2DP sink module. This function
- *                  should be called only after esp_bluedroid_enable() completes successfully
+ *                  should be called only after esp_bluedroid_enable() completes successfully,
+ *                  and ESP_A2D_PROF_STATE_EVT with ESP_A2D_DEINIT_SUCCESS will reported to APP layer.
  *
  * @return
  *                  - ESP_OK: success
@@ -266,7 +281,8 @@ esp_err_t esp_a2d_media_ctrl(esp_a2d_media_ctrl_t ctrl);
 /**
  *
  * @brief           Initialize the bluetooth A2DP source module. This function should be called
- *                  after esp_bluedroid_enable() completes successfully. Note: A2DP can work independently.
+ *                  after esp_bluedroid_enable() completes successfully, and ESP_A2D_PROF_STATE_EVT
+ *                  with ESP_A2D_INIT_SUCCESS will reported to the APP layer. Note: A2DP can work independently.
  *                  If you want to use AVRC together, you should initiate AVRC first.
  *
  * @return
@@ -281,7 +297,8 @@ esp_err_t esp_a2d_source_init(void);
 /**
  *
  * @brief           De-initialize for A2DP source module. This function
- *                  should be called only after esp_bluedroid_enable() completes successfully
+ *                  should be called only after esp_bluedroid_enable() completes successfully,
+ *                  and ESP_A2D_PROF_STATE_EVT with ESP_A2D_DEINIT_SUCCESS will reported to APP layer.
  *
  * @return
  *                  - ESP_OK: success

components/bt/host/bluedroid/btc/profile/std/a2dp/btc_av.c

@@ -1014,7 +1014,7 @@ static bt_status_t btc_av_init(int service_id)
 #endif
             g_a2dp_on_init = false;
             g_a2dp_on_deinit = true;
-            return BT_STATUS_FAIL;
+            goto av_init_fail;
         }
 
         /* Also initialize the AV state machine */
@@ -1030,9 +1030,15 @@ static bt_status_t btc_av_init(int service_id)
         btc_a2dp_on_init();
         g_a2dp_on_init = true;
         g_a2dp_on_deinit = false;
+
+        esp_a2d_cb_param_t param;
+        memset(&param, 0, sizeof(esp_a2d_cb_param_t));
+        param.a2d_prof_stat.init_state = ESP_A2D_INIT_SUCCESS;
+        btc_a2d_cb_to_app(ESP_A2D_PROF_STATE_EVT, &param);
         return BT_STATUS_SUCCESS;
     }
 
+av_init_fail:
     return BT_STATUS_FAIL;
 }
 
@@ -1099,6 +1105,11 @@ static void clean_up(int service_id)
 #endif
     g_a2dp_on_init = false;
     g_a2dp_on_deinit = true;
+
+    esp_a2d_cb_param_t param;
+    memset(&param, 0, sizeof(esp_a2d_cb_param_t));
+    param.a2d_prof_stat.init_state = ESP_A2D_DEINIT_SUCCESS;
+    btc_a2d_cb_to_app(ESP_A2D_PROF_STATE_EVT, &param);
 }
 
 /*******************************************************************************

examples/bluetooth/bluedroid/classic_bt/a2dp_sink/main/bt_app_av.c

@@ -57,7 +57,8 @@ void bt_app_a2d_cb(esp_a2d_cb_event_t event, esp_a2d_cb_param_t *param)
     switch (event) {
     case ESP_A2D_CONNECTION_STATE_EVT:
     case ESP_A2D_AUDIO_STATE_EVT:
-    case ESP_A2D_AUDIO_CFG_EVT: {
+    case ESP_A2D_AUDIO_CFG_EVT:
+    case ESP_A2D_PROF_STATE_EVT: {
         bt_app_work_dispatch(bt_av_hdl_a2d_evt, event, param, sizeof(esp_a2d_cb_param_t), NULL);
         break;
     }
@@ -174,6 +175,15 @@ static void bt_av_hdl_a2d_evt(uint16_t event, void *p_param)
         }
         break;
     }
+    case ESP_A2D_PROF_STATE_EVT: {
+        a2d = (esp_a2d_cb_param_t *)(p_param);
+        if (ESP_A2D_INIT_SUCCESS == a2d->a2d_prof_stat.init_state) {
+            ESP_LOGI(BT_AV_TAG,"A2DP PROF STATE: Init Compl\n");
+        } else {
+            ESP_LOGI(BT_AV_TAG,"A2DP PROF STATE: Deinit Compl\n");
+        }
+        break;
+    }
     default:
         ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
         break;

examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/main/bt_app_av.c

@@ -57,7 +57,8 @@ void bt_app_a2d_cb(esp_a2d_cb_event_t event, esp_a2d_cb_param_t *param)
     switch (event) {
     case ESP_A2D_CONNECTION_STATE_EVT:
     case ESP_A2D_AUDIO_STATE_EVT:
-    case ESP_A2D_AUDIO_CFG_EVT: {
+    case ESP_A2D_AUDIO_CFG_EVT:
+    case ESP_A2D_PROF_STATE_EVT: {
         bt_app_work_dispatch(bt_av_hdl_a2d_evt, event, param, sizeof(esp_a2d_cb_param_t), NULL);
         break;
     }
@@ -174,6 +175,15 @@ static void bt_av_hdl_a2d_evt(uint16_t event, void *p_param)
         }
         break;
     }
+    case ESP_A2D_PROF_STATE_EVT: {
+        a2d = (esp_a2d_cb_param_t *)(p_param);
+        if (ESP_A2D_INIT_SUCCESS == a2d->a2d_prof_stat.init_state) {
+            ESP_LOGI(BT_AV_TAG,"A2DP PROF STATE: Init Compl\n");
+        } else {
+            ESP_LOGI(BT_AV_TAG,"A2DP PROF STATE: Deinit Compl\n");
+        }
+        break;
+    }
     default:
         ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
         break;