RFCOMM Functions. More...

Functions
wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_create_connection (uint16_t uuid, uint8_t scn, wiced_bool_t is_server, uint16_t mtu, wiced_bt_device_address_t bd_addr, uint16_t p_handle, wiced_bt_port_mgmt_cback_t p_mgmt_cb)
	Establish serial port connection to the peer device, or allow RFCOMM to accept a connection from peer devices. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_remove_connection (uint16_t handle, wiced_bool_t remove_server)
	Close the specified connection. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_set_event_callback (uint16_t port_handle, wiced_bt_port_event_cback_t *p_port_cb)
	Set event callback the specified connection. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_set_data_callback (uint16_t port_handle, wiced_bt_rfcomm_data_cback_t *p_cb)
	Set event data callback the specified connection. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_set_event_mask (uint16_t port_handle, wiced_bt_rfcomm_port_event_t mask)
	Set events for which to be notified. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_control (uint16_t handle, uint8_t signal)
	Send control signal to the peer device. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_flow_control (uint16_t handle, wiced_bool_t enable)
	This function directs a specified connection to pass flow control message to the peer device. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_write_data (uint16_t handle, char p_data, uint16_t max_len, uint16_t p_len)
	This function directs a specified connection to pass flow control message to the peer device. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_check_connection (UINT16 handle, BD_ADDR bd_addr, UINT16 *p_lcid)
	This function checks connection referenced by handle is up and running. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_init (uint32_t buffer_size, uint32_t buffer_cnt)
	This function allocates private pool to be used by RFCOMM. More...

wiced_bool_t	wiced_bt_rfcomm_control_data_flow (BD_ADDR peer_bda)
	This function enables flow control based on ACL buffer availability. More...

wiced_bt_rfcomm_result_t	wiced_bt_rfcomm_port_get_queue_status (uint16_t handle, wiced_port_status_t *p_status)
	This function reports current status of a connection. More...

Detailed Description

RFCOMM Functions.

Function Documentation

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_check_connection	(	UINT16	handle,
		BD_ADDR	bd_addr,
		UINT16 *	p_lcid
	)

This function checks connection referenced by handle is up and running.

Parameters

[in]	handle	: The connection handle returned by wiced_bt_rfcomm_create_connection
[out]	bd_addr	: Peer BD Address
[out]	p_lcid	: L2CAP's LCID

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_LINE_ERR : If connection is not up and running

Note BD_Address must be in Big Endian format

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_control	(	uint16_t	handle,
		uint8_t	signal
	)

Send control signal to the peer device.

Parameters

[in]	handle	: The connection handle returned by wiced_bt_rfcomm_create_connection
[in]	signal	: Signal to send (see wiced_bt_rfcomm_signal_e)

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_BAD_HANDLE : If the handle is out of range WICED_BT_RFCOMM_NOT_OPENED : If the connection is not opened

wiced_bool_t wiced_bt_rfcomm_control_data_flow ( BD_ADDR peer_bda )

This function enables flow control based on ACL buffer availability.

Parameters

[in] peer_addr : Peer BD Address

Returns: WICED_TRUE : If successful WICED_FALSE : If fails

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_create_connection	(	uint16_t	uuid,
		uint8_t	scn,
		wiced_bool_t	is_server,
		uint16_t	mtu,
		wiced_bt_device_address_t	bd_addr,
		uint16_t *	p_handle,
		wiced_bt_port_mgmt_cback_t *	p_mgmt_cb
	)

Establish serial port connection to the peer device, or allow RFCOMM to accept a connection from peer devices.

Note: Server can call this function with the same scn parameter multiple times if it is ready to accept multiple simulteneous connections.

DLCI for the connection is (scn * 2 + 1) if client originates connection on existing none initiator multiplexer channel. Otherwise it is (scn * 2). For the server DLCI can be changed later if client will be calling it using (scn * 2 + 1) dlci.

Parameters

[in]	uuid	: The Universal Unique Identifier (UUID) of the Class ID of the service being opened
[in]	scn	: The Service Channel Number(SCN) as registered with the SDP (server) or obtained using SDP from the peer device (client)
[in]	is_server	: TRUE if requesting application is a server
[in]	mtu	: The maximum number of bytes transferred per frame If 0, a default size of L2CAP_MTU_SIZE minus 5 bytes is used
[in]	bd_addr	: BD_ADDR of the peer (if client), NULL if server
[in]	p_mgmt_cb	: Pointer to callback function to receive connection up/down events
[out]	p_handle	: A pointer to the handle set by RFCOMM to be used in consecutive calls for this connection

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_ALREADY_OPENED : If the client tries to establish a connection to the same BD_ADDR WICED_BT_RFCOMM_NO_RESOURCES : If there is not enough memory to allocate a control block structure

Note BD_Address must be in Big Endian format

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_flow_control	(	uint16_t	handle,
		wiced_bool_t	enable
	)

This function directs a specified connection to pass flow control message to the peer device.

Enable flag passed shows if port can accept more data.

Parameters

[in]	handle	: The connection handle returned by wiced_bt_rfcomm_create_connection
[in]	enable	: Flow control setting TRUE Enable data flow FALSE Disable data flow

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_BAD_HANDLE : If the handle is out of range WICED_BT_RFCOMM_NOT_OPENED : If the connection is not opened

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_init	(	uint32_t	buffer_size,
		uint32_t	buffer_cnt
	)

This function allocates private pool to be used by RFCOMM.

Parameters

[in]	buffer_size	: size of buffer
[out]	buffer_cnt	: buffers

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_ERROR : If pool allocation fails

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_port_get_queue_status	(	uint16_t	handle,
		wiced_port_status_t *	p_status
	)

This function reports current status of a connection.

Parameters

[in]	handle	: The connection handle returned by wiced_bt_rfcomm_create_connection
[out]	p_status	: pointer to the wiced_port_status_t structur to receive connection status

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_BAD_HANDLE : If the handle is out of range WICED_BT_RFCOMM_NOT_OPENED : If the connection is not opened

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_remove_connection	(	uint16_t	handle,
		wiced_bool_t	remove_server
	)

Close the specified connection.

Parameters

[in]	handle	: The connection handle returned by wiced_bt_rfcomm_create_connection .
[in]	remove_server	: (for server only) If TRUE, then also remove server; otherwise server remains enabled after connection is closed.

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_BAD_HANDLE : If the handle is out of range WICED_BT_RFCOMM_NOT_OPENED : If the connection is not opened

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_set_data_callback	(	uint16_t	port_handle,
		wiced_bt_rfcomm_data_cback_t *	p_cb
	)

Set event data callback the specified connection.

Parameters

[in]	port_handle	: A 16-bit unsigned integer returned by wiced_bt_rfcomm_create_connection
[in]	p_cb	: Address of the callback function which should be called from the RFCOMM when a data packet is received

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_BAD_HANDLE : If the handle is out of range WICED_BT_RFCOMM_NOT_OPENED : If the connection is not opened

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_set_event_callback	(	uint16_t	port_handle,
		wiced_bt_port_event_cback_t *	p_port_cb
	)

Set event callback the specified connection.

Parameters

[in]	port_handle	: A 16-bit unsigned integer returned by wiced_bt_rfcomm_create_connection
[in]	p_port_cb	: Address of the callback function which should be called from the RFCOMM when an event specified in the mask occurs

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_BAD_HANDLE : If the handle is out of range WICED_BT_RFCOMM_NOT_OPENED : If the connection is not opened

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_set_event_mask	(	uint16_t	port_handle,
		wiced_bt_rfcomm_port_event_t	mask
	)

Set events for which to be notified.

Parameters

[in]	port_handle	: A 16-bit unsigned integer returned by wiced_bt_rfcomm_create_connection
[in]	mask	: Event mask

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_BAD_HANDLE : If the handle is out of range WICED_BT_RFCOMM_NOT_OPENED : If the connection is not opened

wiced_bt_rfcomm_result_t wiced_bt_rfcomm_write_data	(	uint16_t	handle,
		char *	p_data,
		uint16_t	max_len,
		uint16_t *	p_len
	)

This function directs a specified connection to pass flow control message to the peer device.

Enable flag passed shows if port can accept more data.

Parameters

[in]	handle	: The connection handle returned by wiced_bt_rfcomm_create_connection
[in]	p_data	: Data to write
[in]	max_len	: Byte count to write
[out]	p_len	: Bytes written

Returns: WICED_BT_RFCOMM_SUCCESS : If successful WICED_BT_RFCOMM_BAD_HANDLE : If the handle is out of range WICED_BT_RFCOMM_NOT_OPENED : If the connection is not opened


			AIROC^™ BTSDK v4.7 - Documentation