L2CAP Interface Functions

L2CAP_IF API Brief

Application	Brief
`l2cap_if_tws_channel_init()`	TWS private channel init function
`l2cap_if_tws_cmd_send()`	TWS private cmd send API
`l2cap_if_tws_create_connection()`	TWS private connection link connect API
`l2cap_if_pending_chan_run()`	l2cap pending channel restore run API
`l2cap_if_get_base_cid()`	Get L2CAP base CID by address

L2CAP_IF API Reference

Header File

btif/inc/l2cap_if.h

Functions

void l2cap_if_tws_channel_init(tws_l2cap_env_t *p_tws_l2cap_init)

l2cap_if_tws_channel_init brief description

TWS private channel init function

参数:: p_tws_l2cap_init – [in]
返回:: N/A

btif_ret_t l2cap_if_tws_cmd_send(void *p_data, uint16_t length, uint16_t cmd_seq)

l2cap_if_tws_cmd_send brief description

TWS private cmd send API

参数:

p_data – [in] data buffer will be sent
length – [in] p_data length
cmd_seq – [in] commnad sequenece

返回值:

0 – success
other – fail

返回:

result

btif_ret_t l2cap_if_tws_create_connection(btif_bd_addr_t addr)

l2cap_if_tws_create_connection brief description

TWS private connection link connect API

参数:

addr – [in] remote BT MAC address

返回值:

0 – success
other – fail

返回:

result

void l2cap_if_pending_chan_run(uint16_t handle)

l2cap_if_pending_chan_run brief description

l2cap pending channel restore run API

参数:: handle – [in] acl_handle
返回:: N/A

btif_ret_t l2cap_if_get_base_cid(btif_bd_addr_t addr, uint16_t *p_base_cid)

l2cap_if_get_base_cid brief description

Get L2CAP base CID by address

参数:

addr – [in] remote BT MAC address
p_base_cid – [out] base CID value

返回值:

0 – success
other – fail

返回:

result

Structures

struct tws_l2cap_env_t

TWS private channel L2CAP environment struct definition.

Public Members

l2cap_tws_data_handle data_callback: TWS private channel data callback struct

l2cap_tws_event_handle event_callback: TWS private channel event callback struct

btif_bd_addr_t addr: remote BT MAC address

uint16_t handle: connection handle

tws_l2cap_state_t state: TWS private channel connection state

struct l2cap_if_cb_param_t: TWS private channel L2CAP callback interface data struct definition.

Macros

BTIF_L2CAP_CONN_REQ

BTIF_L2CACP_LOCAL_OPEN

BTIF_L2CAP_REMOTE_OPEN

BTIF_L2CAP_TX_DONE

BTIF_L2CAP_CLOSED

L2CAP_TWS_CID

L2CAP_TWS_CONNECTED

L2CAP_TWS_DISCONNECTED

Type Definitions

typedef void (*l2cap_tws_data_handle)(uint8_t *p_data, uint16_t length)

typedef void (*l2cap_tws_event_handle)(uint8_t event)

typedef uint8_t tws_l2cap_state_t: TWS private channel L2CAP state definition.