avdtp: support de-init

src/classic/avdtp.c

@@ -55,6 +55,8 @@
 
 btstack_linked_list_t stream_endpoints;
 
+static bool l2cap_registered;
+
 static btstack_packet_handler_t avdtp_source_callback;
 static btstack_packet_handler_t avdtp_sink_callback;
 static btstack_context_callback_registration_t avdtp_handle_sdp_client_query_request;
@@ -66,7 +68,7 @@ static uint16_t stream_endpoints_id_counter = 0;
 static btstack_linked_list_t connections;
 static uint16_t transaction_id_counter = 0;
 
-static int record_id = -1;
+static int record_id;
 static uint8_t attribute_value[45];
 static const unsigned int attribute_value_buffer_size = sizeof(attribute_value);
 
@@ -261,6 +263,7 @@ static void avdtp_handle_start_sdp_client_query(void * context){
                 continue;
         }
         sdp_query_context_avdtp_cid = connection->avdtp_cid;
+        record_id = -1;
         sdp_client_query_uuid16(&avdtp_handle_sdp_client_query_result, (uint8_t *) connection->remote_addr, BLUETOOTH_PROTOCOL_AVDTP);
         return;
     }
@@ -1473,9 +1476,20 @@ uint8_t is_avdtp_remote_seid_registered(avdtp_stream_endpoint_t * stream_endpoin
 }
 
 void avdtp_init(void){
-    static bool l2cap_registered = false;
     if (!l2cap_registered){
         l2cap_registered = true;
         l2cap_register_service(&avdtp_packet_handler, BLUETOOTH_PSM_AVDTP, 0xffff, gap_get_security_level());
     }
 }
+
+void avdtp_deinit(void){
+    l2cap_registered = false;
+    stream_endpoints = NULL;
+    connections = NULL;
+    avdtp_sink_handle_media_data = NULL;
+
+    sdp_query_context_avdtp_cid = 0;
+    stream_endpoints_id_counter = 0;
+    transaction_id_counter = 0;
+    avdtp_cid_counter = 0;
+}

src/classic/avdtp.h

@@ -555,6 +555,8 @@ typedef struct avdtp_stream_endpoint {
 } avdtp_stream_endpoint_t;
 
 void avdtp_init(void);
+void avdtp_deinit(void);
+
 avdtp_connection_t * avdtp_get_connection_for_avdtp_cid(uint16_t avdtp_cid);
 avdtp_connection_t * avdtp_get_connection_for_l2cap_signaling_cid(uint16_t l2cap_cid);
 btstack_linked_list_t * avdtp_get_connections(void);

src/classic/avdtp_sink.c

@@ -103,6 +103,10 @@ void avdtp_sink_init(void) {
     avdtp_init();
 }
 
+void avdtp_sink_deinit(void){
+    avdtp_deinit();
+}
+
 avdtp_stream_endpoint_t * avdtp_sink_create_stream_endpoint(avdtp_sep_type_t sep_type, avdtp_media_type_t media_type){
     return avdtp_create_stream_endpoint(sep_type, media_type);
 }

src/classic/avdtp_sink.h

@@ -177,6 +177,11 @@ uint8_t avdtp_sink_suspend(uint16_t avdtp_cid, uint8_t local_seid);
  */
 uint8_t avdtp_sink_delay_report(uint16_t avdtp_cid, uint8_t local_seid, uint16_t delay_100us);
 
+/**
+ * @brief De-Init AVDTP Sink.
+ */
+void avdtp_sink_deinit(void);
+
 // AVDTP_SI_DELAYREPORT
 
 /* API_END */

src/classic/avdtp_source.c

@@ -164,6 +164,9 @@ void avdtp_source_init(void) {
     avdtp_init();
 }
 
+void avdtp_source_deinit(void){
+    avdtp_deinit();
+}
 
 static void avdtp_source_setup_media_header(uint8_t * media_packet, uint8_t marker, uint16_t sequence_number){
     uint8_t  rtp_version = 2;

src/classic/avdtp_source.h

@@ -287,6 +287,11 @@ void avdtp_source_stream_endpoint_request_can_send_now(uint16_t avddp_cid, uint8
  */
 int avdtp_max_media_payload_size(uint16_t avdtp_cid, uint8_t local_seid);
 
+/**
+ * @brief De-Init AVDTP Source.
+ */
+void avdtp_source_deinit(void);
+
 /* API_END */
 
 #if defined __cplusplus