File syn_ble_l2cap.c¶

FileList > ble > syn_ble_l2cap.c

Zero-Heap BLE L2CAP Protocol Implementation.

#include "syn_ble_l2cap.h"
#include <string.h>

Public Functions¶

Type	Name
SYN_Status	syn_ble_l2cap_connect (SYN_BLE_L2CAP * l2cap, uint16_t conn_handle) Register connection handle.
SYN_Status	syn_ble_l2cap_disconnect (SYN_BLE_L2CAP * l2cap, uint16_t conn_handle) Unregister connection handle.
SYN_Status	syn_ble_l2cap_encode_pdu (uint16_t conn_handle, uint16_t cid, const uint8_t * payload, uint16_t len, uint8_t * tx_buf, uint16_t * tx_len) Encode L2CAP PDU for transmission over HCI ACL.
SYN_Status	syn_ble_l2cap_init (SYN_BLE_L2CAP * l2cap, SYN_BLE_L2CAP_RxCb rx_cb, void * user_data) Initialize L2CAP engine context.
SYN_Status	syn_ble_l2cap_process_acl (SYN_BLE_L2CAP * l2cap, uint16_t conn_handle, uint8_t pb_bc_flags, const uint8_t * data, uint16_t len) Process incoming ACL packet from HCI layer.

Public Functions Documentation¶

function syn_ble_l2cap_connect¶

Register connection handle.

SYN_Status syn_ble_l2cap_connect (
    SYN_BLE_L2CAP * l2cap,
    uint16_t conn_handle
)

Parameters:

l2cap Context handle pointer.
conn_handle Connection handle assigned by HCI.

Returns:

SYN_OK on success.

function syn_ble_l2cap_disconnect¶

Unregister connection handle.

SYN_Status syn_ble_l2cap_disconnect (
    SYN_BLE_L2CAP * l2cap,
    uint16_t conn_handle
)

Parameters:

l2cap Context handle pointer.
conn_handle Connection handle assigned by HCI.

Returns:

SYN_OK on success.

function syn_ble_l2cap_encode_pdu¶

Encode L2CAP PDU for transmission over HCI ACL.

SYN_Status syn_ble_l2cap_encode_pdu (
    uint16_t conn_handle,
    uint16_t cid,
    const uint8_t * payload,
    uint16_t len,
    uint8_t * tx_buf,
    uint16_t * tx_len
)

Parameters:

conn_handle Connection handle.
cid Channel ID (e.g. SYN_BLE_L2CAP_CID_ATT).
payload PDU payload buffer.
len Payload length.
tx_buf Output buffer for HCI ACL frame.
tx_len Output size pointer.

Returns:

SYN_OK on success.

function syn_ble_l2cap_init¶

Initialize L2CAP engine context.

SYN_Status syn_ble_l2cap_init (
    SYN_BLE_L2CAP * l2cap,
    SYN_BLE_L2CAP_RxCb rx_cb,
    void * user_data
)

Parameters:

l2cap Context handle pointer.
rx_cb PDU receive callback.
user_data User context pointer.

Returns:

SYN_OK on success.

function syn_ble_l2cap_process_acl¶

Process incoming ACL packet from HCI layer.

SYN_Status syn_ble_l2cap_process_acl (
    SYN_BLE_L2CAP * l2cap,
    uint16_t conn_handle,
    uint8_t pb_bc_flags,
    const uint8_t * data,
    uint16_t len
)

Parameters:

l2cap Context handle pointer.
conn_handle Connection handle.
pb_bc_flags Packet boundary/broadcast flags.
data ACL payload.
len Payload length.

Returns:

SYN_OK on success.

The documentation for this class was generated from the following file src/syntropic/ble/syn_ble_l2cap.c