Merge "Make transaction labels per device" (037cf136) · Commits · e / os / android_packages_modules_Bluetooth

system/btif/src/btif_rc.cc

+137 −151

Original line number	Diff line number	Diff line
		@@ -168,6 +168,19 @@ typedef struct {
		btrc_player_app_ext_attr_t ext_attrs[AVRC_MAX_APP_ATTR_SIZE];
		} btif_rc_player_app_settings_t;

		typedef struct {
		bool in_use;
		uint8_t lbl;
		uint8_t handle;
		btif_rc_timer_context_t txn_timer_context;
		alarm_t* txn_timer;
		} rc_transaction_t;

		typedef struct {
		std::recursive_mutex lbllock;
		rc_transaction_t transaction[MAX_TRANSACTIONS_PER_SESSION];
		} rc_transaction_set_t;

		/* TODO : Merge btif_rc_reg_notifications_t and btif_rc_cmd_ctxt_t to a single
		* struct */
		typedef struct {
		@@ -189,6 +202,7 @@ typedef struct {
		bool rc_features_processed;
		uint64_t rc_playing_uid;
		bool rc_procedure_complete;
		rc_transaction_set_t transaction_set;
		} btif_rc_device_cb_t;

		typedef struct {
		@@ -196,19 +210,6 @@ typedef struct {
		btif_rc_device_cb_t rc_multi_cb[BTIF_RC_NUM_CONN];
		} rc_cb_t;

		typedef struct {
		bool in_use;
		uint8_t lbl;
		uint8_t handle;
		btif_rc_timer_context_t txn_timer_context;
		alarm_t* txn_timer;
		} rc_transaction_t;

		typedef struct {
		std::recursive_mutex lbllock;
		rc_transaction_t transaction[MAX_TRANSACTIONS_PER_SESSION];
		} rc_device_t;

		typedef struct {
		uint8_t label;
		RawAddress rc_addr;
		@@ -216,8 +217,6 @@ typedef struct {

		typedef struct { uint8_t handle; } btif_rc_handle_t;

		rc_device_t device;

		static void sleep_ms(uint64_t timeout_ms);

		/* Response status code - Unknown Error - this is changed to "reserved" */
		@@ -252,6 +251,7 @@ static const uint8_t status_code_map[] = {
		AVRC_STS_ADDR_PLAYER_CHG, /* BTRC_STS_ADDR_PLAY_CHGD */
		};

		void initialize_device(btif_rc_device_cb_t* p_dev);
		static void send_reject_response(uint8_t rc_handle, uint8_t label, uint8_t pdu,
		uint8_t status, uint8_t opcode);
		static uint8_t opcode_from_pdu(uint8_t pdu);
		@@ -259,11 +259,12 @@ static void send_metamsg_rsp(btif_rc_device_cb_t* p_dev, int index,
		uint8_t label, tBTA_AV_CODE code,
		tAVRC_RESPONSE* pmetamsg_resp);
		static void register_volumechange(uint8_t label, btif_rc_device_cb_t* p_dev);
		static void lbl_init();
		static void init_all_transactions();
		static bt_status_t get_transaction(rc_transaction_t** ptransaction);
		static void release_transaction(uint8_t label);
		static rc_transaction_t* get_transaction_by_lbl(uint8_t label);
		static void init_all_transactions(btif_rc_device_cb_t* p_dev);
		static bt_status_t get_transaction(btif_rc_device_cb_t* p_dev,
		rc_transaction_t** ptransaction);
		static void release_transaction(btif_rc_device_cb_t* p_dev, uint8_t label);
		static rc_transaction_t* get_transaction_by_lbl(btif_rc_device_cb_t* p_dev,
		uint8_t label);
		static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG* pmeta_msg,
		btif_rc_device_cb_t* p_dev);

		@@ -397,6 +398,41 @@ static btif_rc_device_cb_t* alloc_device() {
		return NULL;
		}

		void initialize_device(btif_rc_device_cb_t* p_dev) {
		if (p_dev == nullptr) return;

		p_dev->rc_connected = false;
		p_dev->br_connected = false;
		p_dev->rc_handle = 0;
		p_dev->rc_features = 0;
		p_dev->rc_cover_art_psm = 0;
		p_dev->rc_state = BTRC_CONNECTION_STATE_DISCONNECTED;
		p_dev->rc_addr = RawAddress::kEmpty;
		p_dev->rc_pending_play = false;
		for (int i = 0; i < MAX_CMD_QUEUE_LEN; ++i) {
		p_dev->rc_pdu_info[i].ctype = 0;
		p_dev->rc_pdu_info[i].label = 0;
		p_dev->rc_pdu_info[i].is_rsp_pending = false;
		}
		if (p_dev->rc_supported_event_list != nullptr) {
		list_clear(p_dev->rc_supported_event_list);
		}
		p_dev->rc_supported_event_list = nullptr;
		p_dev->rc_volume = MAX_VOLUME;
		p_dev->rc_vol_label = MAX_LABEL;
		memset(&p_dev->rc_app_settings, 0, sizeof(btif_rc_player_app_settings_t));
		p_dev->rc_play_status_timer = nullptr;
		p_dev->rc_features_processed = false;
		p_dev->rc_playing_uid = 0;
		p_dev->rc_procedure_complete = false;

		// Leaving the value of the default constructor for the lbllock mutex is fine
		// but we still need to clear out the transaction label set
		memset(&p_dev->transaction_set.transaction, 0,
		sizeof(p_dev->transaction_set.transaction));
		init_all_transactions(p_dev);
		}

		static btif_rc_device_cb_t* get_connected_device(int index) {
		BTIF_TRACE_DEBUG("%s: index: %d", __func__, index);
		if (index > BTIF_RC_NUM_CONN) {
		@@ -412,19 +448,6 @@ static btif_rc_device_cb_t* get_connected_device(int index) {
		return (&btif_rc_cb.rc_multi_cb[index]);
		}

		static int get_num_connected_devices() {
		int connected_devices = 0;
		for (int idx = 0; idx < BTIF_RC_NUM_CONN; idx++) {
		if (btif_rc_cb.rc_multi_cb[idx].rc_state ==
		BTRC_CONNECTION_STATE_CONNECTED) {
		connected_devices++;
		}
		}
		BTIF_TRACE_DEBUG("%s: returning connected_devices: %d", __func__,
		connected_devices);
		return connected_devices;
		}

		btif_rc_device_cb_t* btif_rc_get_device_by_bda(const RawAddress& bd_addr) {
		VLOG(1) << __func__ << ": bd_addr: " << bd_addr;

		@@ -597,16 +620,16 @@ void handle_rc_features(btif_rc_device_cb_t* p_dev) {
		rc_transaction_t* p_transaction = NULL;
		bt_status_t status = BT_STATUS_NOT_READY;
		if (MAX_LABEL == p_dev->rc_vol_label) {
		status = get_transaction(&p_transaction);
		status = get_transaction(p_dev, &p_transaction);
		} else {
		p_transaction = get_transaction_by_lbl(p_dev->rc_vol_label);
		p_transaction = get_transaction_by_lbl(p_dev, p_dev->rc_vol_label);
		if (NULL != p_transaction) {
		BTIF_TRACE_DEBUG(
		"%s: register_volumechange already in progress for label: %d",
		__func__, p_dev->rc_vol_label);
		return;
		}
		status = get_transaction(&p_transaction);
		status = get_transaction(p_dev, &p_transaction);
		}
		if (BT_STATUS_SUCCESS == status && NULL != p_transaction) {
		p_dev->rc_vol_label = p_transaction->lbl;
		@@ -738,43 +761,17 @@ void handle_rc_disconnect(tBTA_AV_RC_CLOSE* p_rc_close) {
		BTIF_TRACE_ERROR("Got disconnect of unknown device");
		return;
		}
		/* report connection state if device is AVRCP target */

		/* Report connection state if device is AVRCP target */
		if (bt_rc_ctrl_callbacks != NULL) {
		do_in_jni_thread(
		FROM_HERE, base::Bind(bt_rc_ctrl_callbacks->connection_state_cb, false,
		false, p_dev->rc_addr));
		}
		/* Clean up AVRCP procedure flags */
		memset(&p_dev->rc_app_settings, 0, sizeof(btif_rc_player_app_settings_t));
		p_dev->rc_features_processed = false;
		p_dev->rc_procedure_complete = false;
		/* Check and clear the notification event list */
		if (p_dev->rc_supported_event_list != NULL) {
		list_clear(p_dev->rc_supported_event_list);
		p_dev->rc_supported_event_list = NULL;
		}

		/* check if there is another device connected */
		if (p_dev->rc_state == BTRC_CONNECTION_STATE_CONNECTED) {
		p_dev->rc_handle = 0;
		p_dev->rc_connected = false;
		p_dev->rc_state = BTRC_CONNECTION_STATE_DISCONNECTED;

		memset(p_dev->rc_notif, 0, sizeof(p_dev->rc_notif));

		p_dev->rc_features = 0;
		p_dev->rc_cover_art_psm = 0;
		p_dev->rc_vol_label = MAX_LABEL;
		p_dev->rc_volume = MAX_VOLUME;

		p_dev->rc_addr = RawAddress::kEmpty;
		}
		if (get_num_connected_devices() == 0) {
		BTIF_TRACE_DEBUG("%s: Closing all handles", __func__);
		init_all_transactions();
		}

		p_dev->rc_addr = RawAddress::kEmpty;
		// We'll re-initialize the device state back to what it looked like before
		// the connection
		initialize_device(p_dev);
		}

		/***************************************************************************
		@@ -867,7 +864,7 @@ void handle_rc_passthrough_rsp(tBTA_AV_REMOTE_RSP* p_remote_rsp) {
		BTIF_TRACE_DEBUG("%s: rc_id: %d state: %s", __func__, p_remote_rsp->rc_id,
		status);

		release_transaction(p_remote_rsp->label);
		release_transaction(p_dev, p_remote_rsp->label);
		if (bt_rc_ctrl_callbacks != NULL) {
		do_in_jni_thread(
		FROM_HERE,
		@@ -914,7 +911,7 @@ void handle_rc_vendorunique_rsp(tBTA_AV_REMOTE_RSP* p_remote_rsp) {
		BTIF_TRACE_DEBUG("%s: vendor_id: %d status: %s", __func__, vendor_id,
		status);

		release_transaction(p_remote_rsp->label);
		release_transaction(p_dev, p_remote_rsp->label);
		do_in_jni_thread(FROM_HERE,
		base::Bind(bt_rc_ctrl_callbacks->groupnavigation_rsp_cb,
		vendor_id, key_state));
		@@ -973,7 +970,7 @@ void handle_rc_metamsg_cmd(tBTA_AV_META_MSG* pmeta_msg) {
		if (pmeta_msg->code >= AVRC_RSP_NOT_IMPL) {
		{
		rc_transaction_t* transaction = NULL;
		transaction = get_transaction_by_lbl(pmeta_msg->label);
		transaction = get_transaction_by_lbl(p_dev, pmeta_msg->label);
		if (transaction != NULL) {
		handle_rc_metamsg_rsp(pmeta_msg, p_dev);
		} else {
		@@ -1796,13 +1793,8 @@ static bt_status_t init(btrc_callbacks_t* callbacks) {

		bt_rc_callbacks = callbacks;
		for (int idx = 0; idx < BTIF_RC_NUM_CONN; idx++) {
		memset(&btif_rc_cb.rc_multi_cb[idx], 0,
		sizeof(btif_rc_cb.rc_multi_cb[idx]));
		btif_rc_cb.rc_multi_cb[idx].rc_vol_label = MAX_LABEL;
		btif_rc_cb.rc_multi_cb[idx].rc_volume = MAX_VOLUME;
		btif_rc_cb.rc_multi_cb[idx].rc_state = BTRC_CONNECTION_STATE_DISCONNECTED;
		initialize_device(&btif_rc_cb.rc_multi_cb[idx]);
		}
		lbl_init();

		return result;
		}
		@@ -1824,13 +1816,8 @@ static bt_status_t init_ctrl(btrc_ctrl_callbacks_t* callbacks) {

		bt_rc_ctrl_callbacks = callbacks;
		for (int idx = 0; idx < BTIF_RC_NUM_CONN; idx++) {
		memset(&btif_rc_cb.rc_multi_cb[idx], 0,
		sizeof(btif_rc_cb.rc_multi_cb[idx]));
		btif_rc_cb.rc_multi_cb[idx].rc_vol_label = MAX_LABEL;
		btif_rc_cb.rc_multi_cb[idx].rc_volume = MAX_VOLUME;
		btif_rc_cb.rc_multi_cb[idx].rc_features_processed = FALSE;
		initialize_device(&btif_rc_cb.rc_multi_cb[idx]);
		}
		lbl_init();

		return result;
		}
		@@ -2592,27 +2579,28 @@ static bt_status_t set_volume(uint8_t volume) {
		tAVRC_STS status = BT_STATUS_UNSUPPORTED;

		for (int idx = 0; idx < BTIF_RC_NUM_CONN; idx++) {
		if (!btif_rc_cb.rc_multi_cb[idx].rc_connected) continue;
		btif_rc_device_cb_t* p_dev = &btif_rc_cb.rc_multi_cb[idx];
		if (!p_dev->rc_connected) continue;

		if (btif_rc_cb.rc_multi_cb[idx].rc_volume == volume) {
		if (p_dev->rc_volume == volume) {
		status = BT_STATUS_DONE;
		BTIF_TRACE_ERROR("%s: volume value already set earlier: 0x%02x", __func__,
		volume);
		continue;
		}

		if ((btif_rc_cb.rc_multi_cb[idx].rc_volume == volume) \|\|
		btif_rc_cb.rc_multi_cb[idx].rc_state !=
		if ((p_dev->rc_volume == volume) \|\|
		p_dev->rc_state !=
		BTRC_CONNECTION_STATE_CONNECTED) {
		continue;
		}

		if ((btif_rc_cb.rc_multi_cb[idx].rc_features & BTA_AV_FEAT_RCTG) == 0) {
		if ((p_dev->rc_features & BTA_AV_FEAT_RCTG) == 0) {
		status = BT_STATUS_NOT_READY;
		continue;
		}

		if (!(btif_rc_cb.rc_multi_cb[idx].rc_features & BTA_AV_FEAT_ADV_CTRL))
		if (!(p_dev->rc_features & BTA_AV_FEAT_ADV_CTRL))
		continue;

		BTIF_TRACE_DEBUG("%s: Peer supports absolute volume. newVolume: %d",
		@@ -2633,7 +2621,7 @@ static bt_status_t set_volume(uint8_t volume) {
		}

		rc_transaction_t* p_transaction = NULL;
		bt_status_t tran_status = get_transaction(&p_transaction);
		bt_status_t tran_status = get_transaction(p_dev, &p_transaction);

		if (tran_status != BT_STATUS_SUCCESS \|\| !p_transaction) {
		osi_free_and_reset((void**)&p_msg);
		@@ -2646,8 +2634,7 @@ static bt_status_t set_volume(uint8_t volume) {

		BTIF_TRACE_DEBUG("%s: msgreq being sent out with label: %d", __func__,
		p_transaction->lbl);
		BTA_AvMetaCmd(btif_rc_cb.rc_multi_cb[idx].rc_handle, p_transaction->lbl,
		AVRC_CMD_CTRL, p_msg);
		BTA_AvMetaCmd(p_dev->rc_handle, p_transaction->lbl, AVRC_CMD_CTRL, p_msg);
		status = BT_STATUS_SUCCESS;
		}
		return (bt_status_t)status;
		@@ -2679,7 +2666,7 @@ static void register_volumechange(uint8_t lbl, btif_rc_device_cb_t* p_dev) {

		BldResp = AVRC_BldCommand(&avrc_cmd, &p_msg);
		if (AVRC_STS_NO_ERROR == BldResp && p_msg) {
		p_transaction = get_transaction_by_lbl(lbl);
		p_transaction = get_transaction_by_lbl(p_dev, lbl);
		if (p_transaction != NULL) {
		BTA_AvMetaCmd(p_dev->rc_handle, p_transaction->lbl, AVRC_CMD_NOTIF,
		p_msg);
		@@ -2728,9 +2715,9 @@ static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG* pmeta_msg,
		AVRC_EVT_VOLUME_CHANGE == avrc_response.reg_notif.event_id &&
		p_dev->rc_vol_label == pmeta_msg->label) {
		p_dev->rc_vol_label = MAX_LABEL;
		release_transaction(p_dev->rc_vol_label);
		release_transaction(p_dev, p_dev->rc_vol_label);
		} else if (AVRC_PDU_SET_ABSOLUTE_VOLUME == avrc_response.rsp.pdu) {
		release_transaction(pmeta_msg->label);
		release_transaction(p_dev, pmeta_msg->label);
		}
		return;
		}
		@@ -2771,7 +2758,7 @@ static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG* pmeta_msg,
		register_volumechange(p_dev->rc_vol_label, p_dev);
		} else if (AVRC_PDU_SET_ABSOLUTE_VOLUME == avrc_response.rsp.pdu) {
		/* free up the label here */
		release_transaction(pmeta_msg->label);
		release_transaction(p_dev, pmeta_msg->label);
		}

		BTIF_TRACE_EVENT("%s: Passing received metamsg response to app. pdu: %s",
		@@ -2941,7 +2928,7 @@ static void btif_rc_status_cmd_timeout_handler(UNUSED_ATTR uint16_t event,
		handle_get_playstatus_response(&meta_msg, &avrc_response.get_play_status);
		break;
		}
		release_transaction(p_context->rc_status_cmd.label);
		release_transaction(p_dev, p_context->rc_status_cmd.label);
		}

		/***************************************************************************
		@@ -2989,7 +2976,7 @@ static void btif_rc_control_cmd_timeout_handler(UNUSED_ATTR uint16_t event,
		handle_set_app_attr_val_response(&meta_msg, &avrc_response.set_app_val);
		break;
		}
		release_transaction(p_context->rc_control_cmd.label);
		release_transaction(p_dev, p_context->rc_control_cmd.label);
		}

		/***************************************************************************
		@@ -3022,7 +3009,7 @@ static void btif_rc_control_cmd_timer_timeout(void* data) {
		static void register_for_event_notification(btif_rc_supported_event_t* p_event,
		btif_rc_device_cb_t* p_dev) {
		rc_transaction_t* p_transaction = NULL;
		bt_status_t status = get_transaction(&p_transaction);
		bt_status_t status = get_transaction(p_dev, &p_transaction);
		if (status != BT_STATUS_SUCCESS) {
		BTIF_TRACE_ERROR("%s: no more transaction labels: %d", __func__, status);
		return;
		@@ -3037,7 +3024,7 @@ static void register_for_event_notification(btif_rc_supported_event_t* p_event,
		if (status != BT_STATUS_SUCCESS) {
		BTIF_TRACE_ERROR("%s: Error in Notification registration: %d", __func__,
		status);
		release_transaction(p_transaction->lbl);
		release_transaction(p_dev, p_transaction->lbl);
		return;
		}

		@@ -3084,7 +3071,7 @@ bt_status_t build_and_send_vendor_cmd(tAVRC_COMMAND* avrc_cmd,
		tBTA_AV_CODE cmd_code,
		btif_rc_device_cb_t* p_dev) {
		rc_transaction_t* p_transaction = NULL;
		bt_status_t tran_status = get_transaction(&p_transaction);
		bt_status_t tran_status = get_transaction(p_dev, &p_transaction);
		if (BT_STATUS_SUCCESS != tran_status) return BT_STATUS_FAIL;

		BT_HDR* p_msg = NULL;
		@@ -3132,7 +3119,7 @@ static bt_status_t build_and_send_browsing_cmd(tAVRC_COMMAND* avrc_cmd,
		}

		rc_transaction_t* p_transaction = NULL;
		bt_status_t tran_status = get_transaction(&p_transaction);
		bt_status_t tran_status = get_transaction(p_dev, &p_transaction);

		if (tran_status != BT_STATUS_SUCCESS \|\| p_transaction == NULL) {
		osi_free(p_msg);
		@@ -4313,10 +4300,10 @@ static void handle_set_browsed_player_response(tBTA_AV_META_MSG* pmeta_msg,
		* Returns None
		*
		**************************************************************************/
		static void clear_cmd_timeout(uint8_t label) {
		static void clear_cmd_timeout(btif_rc_device_cb_t* p_dev, uint8_t label) {
		rc_transaction_t* p_txn;

		p_txn = get_transaction_by_lbl(label);
		p_txn = get_transaction_by_lbl(p_dev, label);
		if (p_txn == NULL) {
		BTIF_TRACE_ERROR("%s: Error in transaction label lookup", __func__);
		return;
		@@ -4339,10 +4326,12 @@ static void handle_avk_rc_metamsg_rsp(tBTA_AV_META_MSG* pmeta_msg) {
		uint8_t scratch_buf[512] = {0}; // this variable is unused
		uint16_t buf_len;
		tAVRC_STS status;
		btif_rc_device_cb_t* p_dev = NULL;

		BTIF_TRACE_DEBUG("%s: opcode: %d rsp_code: %d ", __func__,
		pmeta_msg->p_msg->hdr.opcode, pmeta_msg->code);

		p_dev = btif_rc_get_device_by_handle(pmeta_msg->rc_handle);
		status = AVRC_Ctrl_ParsResponse(pmeta_msg->p_msg, &avrc_response, scratch_buf,
		&buf_len);
		if ((AVRC_OP_VENDOR == pmeta_msg->p_msg->hdr.opcode) &&
		@@ -4357,7 +4346,7 @@ static void handle_avk_rc_metamsg_rsp(tBTA_AV_META_MSG* pmeta_msg) {
		handle_notification_response(pmeta_msg, &avrc_response.reg_notif);
		if (pmeta_msg->code == AVRC_RSP_INTERIM) {
		/* Don't free the transaction Id */
		clear_cmd_timeout(pmeta_msg->label);
		clear_cmd_timeout(p_dev, pmeta_msg->label);
		return;
		}
		break;
		@@ -4431,8 +4420,8 @@ static void handle_avk_rc_metamsg_rsp(tBTA_AV_META_MSG* pmeta_msg) {
		__func__, pmeta_msg->code, pmeta_msg->len);
		return;
		}
		BTIF_TRACE_DEBUG("XX __func__ release transaction %d", pmeta_msg->label);
		release_transaction(pmeta_msg->label);
		BTIF_TRACE_DEBUG("%s: release transaction %d", __func__, pmeta_msg->label);
		release_transaction(p_dev, pmeta_msg->label);
		}

		/***************************************************************************
		@@ -5240,7 +5229,7 @@ static bt_status_t send_groupnavigation_cmd(const RawAddress& bd_addr,
		CHECK_RC_CONNECTED(p_dev);

		if (p_dev->rc_features & BTA_AV_FEAT_RCTG) {
		bt_status_t tran_status = get_transaction(&p_transaction);
		bt_status_t tran_status = get_transaction(p_dev, &p_transaction);
		if ((BT_STATUS_SUCCESS == tran_status) && (NULL != p_transaction)) {
		uint8_t buffer[AVRC_PASS_THRU_GROUP_LEN] = {0};
		uint8_t* start = buffer;
		@@ -5286,7 +5275,7 @@ static bt_status_t send_passthrough_cmd(const RawAddress& bd_addr,
		BTIF_TRACE_DEBUG("%s: key-code: %d, key-state: %d", __func__, key_code,
		key_state);
		if (p_dev->rc_features & BTA_AV_FEAT_RCTG) {
		bt_status_t tran_status = get_transaction(&p_transaction);
		bt_status_t tran_status = get_transaction(p_dev, &p_transaction);
		if (BT_STATUS_SUCCESS == tran_status && NULL != p_transaction) {
		BTA_AvRemoteCmd(p_dev->rc_handle, p_transaction->lbl,
		(tBTA_AV_RC)key_code, (tBTA_AV_STATE)key_state);
		@@ -5384,28 +5373,18 @@ const btrc_ctrl_interface_t* btif_rc_ctrl_get_interface(void) {
		*
		* Returns void
		******************************************************************************/
		static void initialize_transaction(int lbl) {
		std::unique_lock<std::recursive_mutex> lock(device.lbllock);
		static void initialize_transaction(btif_rc_device_cb_t* p_dev, int lbl) {
		if (p_dev == nullptr) return;
		rc_transaction_set_t* transaction_set = &(p_dev->transaction_set);
		std::unique_lock<std::recursive_mutex> lock(transaction_set->lbllock);
		if (lbl < MAX_TRANSACTIONS_PER_SESSION) {
		if (alarm_is_scheduled(device.transaction[lbl].txn_timer)) {
		clear_cmd_timeout(lbl);
		}
		device.transaction[lbl].lbl = lbl;
		device.transaction[lbl].in_use = false;
		device.transaction[lbl].handle = 0;
		if (alarm_is_scheduled(transaction_set->transaction[lbl].txn_timer)) {
		clear_cmd_timeout(p_dev, lbl);
		}
		transaction_set->transaction[lbl].lbl = lbl;
		transaction_set->transaction[lbl].in_use = false;
		transaction_set->transaction[lbl].handle = 0;
		}

		/*******************************************************************************
		* Function lbl_init
		*
		* Description Initializes label structures and mutexes.
		*
		* Returns void
		******************************************************************************/
		void lbl_init() {
		memset(&device.transaction, 0, sizeof(device.transaction));
		init_all_transactions();
		}

		/*******************************************************************************
		@@ -5416,10 +5395,10 @@ void lbl_init() {
		*
		* Returns void
		******************************************************************************/
		void init_all_transactions() {
		uint8_t txn_indx = 0;
		for (txn_indx = 0; txn_indx < MAX_TRANSACTIONS_PER_SESSION; txn_indx++) {
		initialize_transaction(txn_indx);
		void init_all_transactions(btif_rc_device_cb_t* p_dev) {
		if (p_dev == nullptr) return;
		for (auto i = 0; i < MAX_TRANSACTIONS_PER_SESSION; ++i) {
		initialize_transaction(p_dev, i);
		}
		}

		@@ -5432,20 +5411,22 @@ void init_all_transactions() {
		*
		* Returns bt_status_t
		******************************************************************************/
		rc_transaction_t* get_transaction_by_lbl(uint8_t lbl) {
		rc_transaction_t* get_transaction_by_lbl(btif_rc_device_cb_t* p_dev,
		uint8_t lbl) {
		if (p_dev == nullptr) return nullptr;

		rc_transaction_t* transaction = NULL;
		std::unique_lock<std::recursive_mutex> lock(device.lbllock);
		rc_transaction_set_t* transaction_set = &(p_dev->transaction_set);
		std::unique_lock<std::recursive_mutex> lock(transaction_set->lbllock);

		/* Determine if this is a valid label */
		if (lbl < MAX_TRANSACTIONS_PER_SESSION) {
		if (!device.transaction[lbl].in_use) {
		if (!transaction_set->transaction[lbl].in_use) {
		transaction = NULL;
		} else {
		transaction = &(device.transaction[lbl]);
		BTIF_TRACE_DEBUG("%s: Got transaction.label: %d", __func__, lbl);
		transaction = &(transaction_set->transaction[lbl]);
		}
		}

		return transaction;
		}

		@@ -5457,20 +5438,24 @@ rc_transaction_t* get_transaction_by_lbl(uint8_t lbl) {
		*
		* Returns bt_status_t
		******************************************************************************/
		static bt_status_t get_transaction(btif_rc_device_cb_t* p_dev,
		rc_transaction_t** ptransaction) {
		if (p_dev == NULL) return BT_STATUS_FAIL;
		rc_transaction_set_t* transaction_set = &(p_dev->transaction_set);
		std::unique_lock<std::recursive_mutex> lock(transaction_set->lbllock);

		static bt_status_t get_transaction(rc_transaction_t** ptransaction) {
		std::unique_lock<std::recursive_mutex> lock(device.lbllock);

		// Check for unused transactions
		// Check for unused transactions in the device's transaction set
		for (uint8_t i = 0; i < MAX_TRANSACTIONS_PER_SESSION; i++) {
		if (!device.transaction[i].in_use) {
		BTIF_TRACE_DEBUG("%s: Got transaction.label: %d", __func__,
		device.transaction[i].lbl);
		device.transaction[i].in_use = true;
		*ptransaction = &(device.transaction[i]);
		if (!transaction_set->transaction[i].in_use) {
		BTIF_TRACE_DEBUG("%s: p_dev=%s, label=%d, got free transaction!",
		__func__, p_dev->rc_addr.ToString().c_str(), i);
		transaction_set->transaction[i].in_use = true;
		*ptransaction = &(transaction_set->transaction[i]);
		return BT_STATUS_SUCCESS;
		}
		}
		BTIF_TRACE_ERROR("%s: p_dev=%s, failed to find free transaction", __func__,
		p_dev->rc_addr.ToString().c_str());
		return BT_STATUS_NOMEM;
		}

		@@ -5482,14 +5467,15 @@ static bt_status_t get_transaction(rc_transaction_t** ptransaction) {
		*
		* Returns bt_status_t
		******************************************************************************/
		void release_transaction(uint8_t lbl) {
		BTIF_TRACE_DEBUG("%s %d", __func__, lbl);
		rc_transaction_t* transaction = get_transaction_by_lbl(lbl);
		void release_transaction(btif_rc_device_cb_t* p_dev, uint8_t lbl) {
		BTIF_TRACE_DEBUG("%s: p_dev=%s, label=%d", __func__,
		p_dev == NULL ? "null" : p_dev->rc_addr.ToString().c_str(),
		lbl);
		rc_transaction_t* transaction = get_transaction_by_lbl(p_dev, lbl);

		/* If the transaction is in use... */
		if (transaction != NULL) {
		BTIF_TRACE_DEBUG("%s: lbl: %d", __func__, lbl);
		initialize_transaction(lbl);
		initialize_transaction(p_dev, lbl);
		}
		}