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esp-idf/components/bt/host/bluedroid/stack/gap/gap_ble.c

824 wiersze
27 KiB
C
Czysty Wina Historia

/******************************************************************************
*
* Copyright (C) 2009-2013 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#include "common/bt_target.h"
#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE && GATTS_INCLUDED == TRUE)
#include "common/bt_defs.h"
#include "osi/allocator.h"
#include <string.h>
#include "gap_int.h"
#include "stack/gap_api.h"
#include "stack/gattdefs.h"
#include "stack/gatt_api.h"
#include "gatt_int.h"
#include "btm_int.h"
#include "stack/hcimsgs.h"
#include "stack/sdpdefs.h"
#define GAP_CHAR_ICON_SIZE 2
#define GAP_CHAR_DEV_NAME_SIZE 248
#define GAP_MAX_NUM_INC_SVR 0
#define GAP_MAX_ATTR_NUM (2 * GAP_MAX_CHAR_NUM + GAP_MAX_NUM_INC_SVR + 1)
#define GAP_MAX_CHAR_VALUE_SIZE (30 + GAP_CHAR_DEV_NAME_SIZE)
#ifndef GAP_ATTR_DB_SIZE
#define GAP_ATTR_DB_SIZE GATT_DB_MEM_SIZE(GAP_MAX_NUM_INC_SVR, GAP_MAX_CHAR_NUM, GAP_MAX_CHAR_VALUE_SIZE)
#endif
static void gap_ble_s_attr_request_cback (UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE op_code, tGATTS_DATA *p_data);
/* client connection callback */
static void gap_ble_c_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected,
tGATT_DISCONN_REASON reason, tGATT_TRANSPORT transport);
static void gap_ble_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data);
static const tGATT_CBACK gap_cback = {
gap_ble_c_connect_cback,
gap_ble_c_cmpl_cback,
NULL,
NULL,
gap_ble_s_attr_request_cback,
NULL,
NULL
};
/*******************************************************************************
**
** Function gap_find_clcb_by_bd_addr
**
** Description The function searches all LCB with matching bd address
**
** Returns total number of clcb found.
**
*******************************************************************************/
tGAP_CLCB *gap_find_clcb_by_bd_addr(BD_ADDR bda)
{
UINT8 i_clcb;
tGAP_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb = gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++) {
if (p_clcb->in_use && !memcmp(p_clcb->bda, bda, BD_ADDR_LEN)) {
return p_clcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function gap_ble_find_clcb_by_conn_id
**
** Description The function searches all LCB with matching connection ID
**
** Returns total number of clcb found.
**
*******************************************************************************/
tGAP_CLCB *gap_ble_find_clcb_by_conn_id(UINT16 conn_id)
{
UINT8 i_clcb;
tGAP_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb = gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++) {
if (p_clcb->in_use && p_clcb->connected && p_clcb->conn_id == conn_id) {
return p_clcb;
}
}
return p_clcb;
}
/*******************************************************************************
**
** Function gap_clcb_alloc
**
** Description The function allocates a GAP connection link control block
**
** Returns NULL if not found. Otherwise pointer to the connection link block.
**
*******************************************************************************/
tGAP_CLCB *gap_clcb_alloc (BD_ADDR bda)
{
UINT8 i_clcb = 0;
tGAP_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb = gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++) {
if (!p_clcb->in_use) {
memset(p_clcb, 0, sizeof(tGAP_CLCB));
p_clcb->in_use = TRUE;
memcpy (p_clcb->bda, bda, BD_ADDR_LEN);
break;
}
}
return p_clcb;
}
/*******************************************************************************
**
** Function gap_ble_dealloc_clcb
**
** Description The function clean up the pending request queue in GAP
**
** Returns none
**
*******************************************************************************/
void gap_ble_dealloc_clcb(tGAP_CLCB *p_clcb)
{
tGAP_BLE_REQ *p_q;
while ((p_q = (tGAP_BLE_REQ *)fixed_queue_dequeue(p_clcb->pending_req_q, 0)) != NULL) {
/* send callback to all pending requests if being removed*/
if (p_q->p_cback != NULL) {
(*p_q->p_cback)(FALSE, p_clcb->bda, 0, NULL);
}
osi_free (p_q);
}
memset(p_clcb, 0, sizeof(tGAP_CLCB));
}
/*******************************************************************************
**
** Function gap_ble_enqueue_request
**
** Description The function enqueue a GAP client request
**
** Returns TRUE is successful; FALSE otherwise
**
*******************************************************************************/
BOOLEAN gap_ble_enqueue_request (tGAP_CLCB *p_clcb, UINT16 uuid, tGAP_BLE_CMPL_CBACK *p_cback)
{
tGAP_BLE_REQ *p_q = (tGAP_BLE_REQ *)osi_malloc(sizeof(tGAP_BLE_REQ));
if (p_q != NULL) {
p_q->p_cback = p_cback;
p_q->uuid = uuid;
fixed_queue_enqueue(p_clcb->pending_req_q, p_q, FIXED_QUEUE_MAX_TIMEOUT);
return TRUE;
}
return FALSE;
}
/*******************************************************************************
**
** Function gap_ble_dequeue_request
**
** Description The function dequeue a GAP client request if any
**
** Returns TRUE is successful; FALSE otherwise
**
*******************************************************************************/
BOOLEAN gap_ble_dequeue_request (tGAP_CLCB *p_clcb, UINT16 *p_uuid, tGAP_BLE_CMPL_CBACK **p_cback)
{
tGAP_BLE_REQ *p_q = (tGAP_BLE_REQ *)fixed_queue_dequeue(p_clcb->pending_req_q, 0);;
if (p_q != NULL) {
*p_cback = p_q->p_cback;
*p_uuid = p_q->uuid;
osi_free((void *)p_q);
return TRUE;
}
return FALSE;
}
/*******************************************************************************
** GAP Attributes Database Request callback
*******************************************************************************/
tGATT_STATUS gap_read_attr_value (UINT16 handle, tGATT_VALUE *p_value, BOOLEAN is_long)
{
tGAP_ATTR *p_db_attr = gap_cb.gap_attr;
UINT8 *p = p_value->value, i;
UINT16 offset = p_value->offset;
UINT8 *p_dev_name = NULL;
for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++) {
if (handle == p_db_attr->handle) {
if (p_db_attr->uuid != GATT_UUID_GAP_DEVICE_NAME &&
is_long == TRUE) {
return GATT_NOT_LONG;
}
switch (p_db_attr->uuid) {
case GATT_UUID_GAP_DEVICE_NAME:
BTM_ReadLocalDeviceName((char **)&p_dev_name, BT_DEVICE_TYPE_BLE);
if (strlen ((char *)p_dev_name) > GATT_MAX_ATTR_LEN) {
p_value->len = GATT_MAX_ATTR_LEN;
} else {
p_value->len = (UINT16)strlen ((char *)p_dev_name);
}
if (offset > p_value->len) {
return GATT_INVALID_OFFSET;
} else {
p_value->len -= offset;
p_dev_name += offset;
ARRAY_TO_STREAM(p, p_dev_name, p_value->len);
GAP_TRACE_EVENT("GATT_UUID_GAP_DEVICE_NAME len=0x%04x", p_value->len);
}
break;
case GATT_UUID_GAP_ICON:
UINT16_TO_STREAM(p, p_db_attr->attr_value.icon);
p_value->len = 2;
break;
case GATT_UUID_GAP_PREF_CONN_PARAM:
UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.int_min); /* int_min */
UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.int_max); /* int_max */
UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.latency); /* latency */
UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.sp_tout); /* sp_tout */
p_value->len = 8;
break;
/* address resolution */
case GATT_UUID_GAP_CENTRAL_ADDR_RESOL:
UINT8_TO_STREAM(p, p_db_attr->attr_value.addr_resolution);
p_value->len = 1;
break;
}
return GATT_SUCCESS;
}
}
return GATT_NOT_FOUND;
}
/*******************************************************************************
** GAP Attributes Database Read/Read Blob Request process
*******************************************************************************/
tGATT_STATUS gap_proc_read (tGATTS_REQ_TYPE type, tGATT_READ_REQ *p_data, tGATTS_RSP *p_rsp)
{
tGATT_STATUS status = GATT_NO_RESOURCES;
UNUSED(type);
if (p_data->is_long) {
p_rsp->attr_value.offset = p_data->offset;
}
p_rsp->attr_value.handle = p_data->handle;
status = gap_read_attr_value(p_data->handle, &p_rsp->attr_value, p_data->is_long);
return status;
}
/******************************************************************************
**
** Function gap_proc_write_req
**
** Description GAP ATT server process a write request.
**
** Returns void.
**
*******************************************************************************/
UINT8 gap_proc_write_req( tGATTS_REQ_TYPE type, tGATT_WRITE_REQ *p_data)
{
tGAP_ATTR *p_db_attr = gap_cb.gap_attr;
UINT8 i;
UNUSED(type);
for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++) {
if (p_data->handle == p_db_attr->handle) {
switch (p_db_attr->uuid) {
#if (GATTS_DEVICE_NAME_WRITABLE == TRUE)
case GATT_UUID_GAP_DEVICE_NAME: {
UINT8 *p_val = p_data->value;
p_val[p_data->len] = '\0';
BTM_SetLocalDeviceName((char *)p_val, BT_DEVICE_TYPE_BLE);
return GATT_SUCCESS;
}
#endif
#if (GATTS_APPEARANCE_WRITABLE == TRUE)
case GATT_UUID_GAP_ICON: {
UINT8 *p_val = p_data->value;
if (p_data->len != sizeof(UINT16)) {
return GATT_INVALID_ATTR_LEN;
}
STREAM_TO_UINT16(p_db_attr->attr_value.icon, p_val);
return GATT_SUCCESS;
}
#endif
default:
break;
}
return GATT_WRITE_NOT_PERMIT;
}
}
return GATT_NOT_FOUND;
}
/******************************************************************************
**
** Function gap_ble_s_attr_request_cback
**
** Description GAP ATT server attribute access request callback.
**
** Returns void.
**
*******************************************************************************/
void gap_ble_s_attr_request_cback (UINT16 conn_id, UINT32 trans_id,
tGATTS_REQ_TYPE type, tGATTS_DATA *p_data)
{
UINT8 status = GATT_INVALID_PDU;
tGATTS_RSP rsp_msg;
BOOLEAN ignore = FALSE;
GAP_TRACE_EVENT("gap_ble_s_attr_request_cback : recv type (0x%02x)", type);
memset(&rsp_msg, 0, sizeof(tGATTS_RSP));
switch (type) {
case GATTS_REQ_TYPE_READ:
status = gap_proc_read(type, &p_data->read_req, &rsp_msg);
break;
case GATTS_REQ_TYPE_WRITE:
if (!p_data->write_req.need_rsp) {
ignore = TRUE;
}
status = gap_proc_write_req(type, &p_data->write_req);
break;
case GATTS_REQ_TYPE_WRITE_EXEC:
ignore = TRUE;
GAP_TRACE_EVENT("Ignore GATTS_REQ_TYPE_WRITE_EXEC" );
break;
case GATTS_REQ_TYPE_MTU:
GAP_TRACE_EVENT("Get MTU exchange new mtu size: %d", p_data->mtu);
ignore = TRUE;
break;
default:
GAP_TRACE_EVENT("Unknown/unexpected LE GAP ATT request: 0x%02x", type);
break;
}
if (!ignore) {
GATTS_SendRsp (conn_id, trans_id, status, &rsp_msg);
}
}
/*******************************************************************************
**
** Function btm_ble_att_db_init
**
** Description GAP ATT database initialization.
**
** Returns void.
**
*******************************************************************************/
void gap_attr_db_init(void)
{
tBT_UUID app_uuid = {LEN_UUID_128, {0}};
tBT_UUID uuid = {LEN_UUID_16, {UUID_SERVCLASS_GAP_SERVER}};
UINT16 service_handle;
tGAP_ATTR *p_db_attr = &gap_cb.gap_attr[0];
tGATT_STATUS status;
/* Fill our internal UUID with a fixed pattern 0x82 */
memset (&app_uuid.uu.uuid128, 0x82, LEN_UUID_128);
memset(gap_cb.gap_attr, 0, sizeof(tGAP_ATTR) *GAP_MAX_CHAR_NUM);
gap_cb.gatt_if = GATT_Register(&app_uuid, &gap_cback);
GATT_StartIf(gap_cb.gatt_if);
/* Create a GAP service */
service_handle = GATTS_CreateService (gap_cb.gatt_if, &uuid, 0, GAP_MAX_ATTR_NUM, TRUE);
GAP_TRACE_EVENT ("gap_attr_db_init service_handle = %d", service_handle);
/* add Device Name Characteristic
*/
uuid.len = LEN_UUID_16;
uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_DEVICE_NAME;
p_db_attr->handle = GATTS_AddCharacteristic(service_handle, &uuid,
#if (GATTS_DEVICE_NAME_WRITABLE == TRUE)
GATT_PERM_READ | GATT_PERM_WRITE,
GATT_CHAR_PROP_BIT_READ | GATT_CHAR_PROP_BIT_WRITE_NR,
#else
GATT_PERM_READ, GATT_CHAR_PROP_BIT_READ,
#endif
NULL, NULL);
p_db_attr ++;
/* add Icon characteristic
*/
uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_ICON;
p_db_attr->handle = GATTS_AddCharacteristic(service_handle, &uuid,
#if (GATTS_APPEARANCE_WRITABLE == TRUE)
GATT_PERM_READ | GATT_PERM_WRITE,
GATT_CHAR_PROP_BIT_READ | GATT_CHAR_PROP_BIT_WRITE_NR,
#else
GATT_PERM_READ, GATT_CHAR_PROP_BIT_READ,
#endif
NULL, NULL);
p_db_attr ++;
#if ((defined BTM_PERIPHERAL_ENABLED) && (BTM_PERIPHERAL_ENABLED == TRUE))
/* Only needed for peripheral testing */
/* add preferred connection parameter characteristic
*/
uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_PREF_CONN_PARAM;
p_db_attr->attr_value.conn_param.int_max = GAP_PREFER_CONN_INT_MAX; /* 6 */
p_db_attr->attr_value.conn_param.int_min = GAP_PREFER_CONN_INT_MIN; /* 0 */
p_db_attr->attr_value.conn_param.latency = GAP_PREFER_CONN_LATENCY; /* 0 */
p_db_attr->attr_value.conn_param.sp_tout = GAP_PREFER_CONN_SP_TOUT; /* 2000 */
p_db_attr->handle = GATTS_AddCharacteristic(service_handle,
&uuid,
GATT_PERM_READ,
GATT_CHAR_PROP_BIT_READ,
NULL, NULL);
p_db_attr ++;
#endif
/* add Central address resolution Characteristic */
uuid.len = LEN_UUID_16;
uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_CENTRAL_ADDR_RESOL;
p_db_attr->handle = GATTS_AddCharacteristic(service_handle, &uuid,
GATT_PERM_READ, GATT_CHAR_PROP_BIT_READ,
NULL, NULL);
p_db_attr->attr_value.addr_resolution = 0;
p_db_attr++;
/* start service now */
memset (&app_uuid.uu.uuid128, 0x81, LEN_UUID_128);
status = GATTS_StartService(gap_cb.gatt_if, service_handle, GAP_TRANSPORT_SUPPORTED );
#if (CONFIG_BT_STACK_NO_LOG)
(void) status;
#endif
GAP_TRACE_EVENT ("GAP App gatt_if: %d s_hdl = %d start_status=%d",
gap_cb.gatt_if, service_handle, status);
}
/*******************************************************************************
**
** Function GAP_BleAttrDBUpdate
**
** Description GAP ATT database update.
**
** Returns void.
**
*******************************************************************************/
void GAP_BleAttrDBUpdate(UINT16 attr_uuid, tGAP_BLE_ATTR_VALUE *p_value)
{
tGAP_ATTR *p_db_attr = gap_cb.gap_attr;
UINT8 i = 0;
GAP_TRACE_EVENT("GAP_BleAttrDBUpdate attr_uuid=0x%04x\n", attr_uuid);
for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++) {
if (p_db_attr->uuid == attr_uuid) {
GAP_TRACE_EVENT("Found attr_uuid=0x%04x\n", attr_uuid);
switch (attr_uuid) {
case GATT_UUID_GAP_ICON:
p_db_attr->attr_value.icon = p_value->icon;
break;
case GATT_UUID_GAP_PREF_CONN_PARAM:
memcpy((void *)&p_db_attr->attr_value.conn_param,
(const void *)&p_value->conn_param, sizeof(tGAP_BLE_PREF_PARAM));
break;
case GATT_UUID_GAP_DEVICE_NAME:
BTM_SetLocalDeviceName((char *)p_value->p_dev_name, BT_DEVICE_TYPE_BLE);
break;
case GATT_UUID_GAP_CENTRAL_ADDR_RESOL:
p_db_attr->attr_value.addr_resolution = p_value->addr_resolution;
break;
}
break;
}
}
return;
}
/*******************************************************************************
**
** Function gap_ble_send_cl_read_request
**
** Description utility function to send a read request for a GAP characteristic
**
** Returns TRUE if read started, else FALSE if GAP is busy
**
*******************************************************************************/
BOOLEAN gap_ble_send_cl_read_request(tGAP_CLCB *p_clcb)
{
tGATT_READ_PARAM param;
UINT16 uuid = 0;
BOOLEAN started = FALSE;
if (gap_ble_dequeue_request(p_clcb, &uuid, &p_clcb->p_cback)) {
memset(&param, 0, sizeof(tGATT_READ_PARAM));
param.service.uuid.len = LEN_UUID_16;
param.service.uuid.uu.uuid16 = uuid;
param.service.s_handle = 1;
param.service.e_handle = 0xFFFF;
param.service.auth_req = 0;
#if (GATTC_INCLUDED == TRUE)
if (GATTC_Read(p_clcb->conn_id, GATT_READ_BY_TYPE, &param) == GATT_SUCCESS) {
p_clcb->cl_op_uuid = uuid;
started = TRUE;
}
#endif ///GATTC_INCLUDED == TRUE
}
return started;
}
/*******************************************************************************
**
** Function gap_ble_cl_op_cmpl
**
** Description GAP client operation complete callback
**
** Returns void
**
*******************************************************************************/
void gap_ble_cl_op_cmpl(tGAP_CLCB *p_clcb, BOOLEAN status, UINT16 len, UINT8 *p_name)
{
tGAP_BLE_CMPL_CBACK *p_cback = p_clcb->p_cback;
UINT16 op = p_clcb->cl_op_uuid;
GAP_TRACE_EVENT("gap_ble_cl_op_cmpl status: %d", status);
p_clcb->cl_op_uuid = 0;
p_clcb->p_cback = NULL;
if (p_cback && op) {
GAP_TRACE_EVENT("calling gap_ble_cl_op_cmpl");
(* p_cback)(status, p_clcb->bda, len, (char *)p_name);
}
/* if no further activity is requested in callback, drop the link */
if (p_clcb->connected) {
if (!gap_ble_send_cl_read_request(p_clcb)) {
GATT_Disconnect(p_clcb->conn_id);
gap_ble_dealloc_clcb(p_clcb);
}
}
}
/*******************************************************************************
**
** Function gap_ble_c_connect_cback
**
** Description Client connection callback.
**
** Returns void
**
*******************************************************************************/
static void gap_ble_c_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id,
BOOLEAN connected, tGATT_DISCONN_REASON reason,
tGATT_TRANSPORT transport)
{
tGAP_CLCB *p_clcb = gap_find_clcb_by_bd_addr (bda);
UNUSED(gatt_if);
UNUSED(transport);
if (p_clcb != NULL) {
if (connected) {
p_clcb->conn_id = conn_id;
p_clcb->connected = TRUE;
/* start operation is pending */
gap_ble_send_cl_read_request(p_clcb);
} else {
p_clcb->connected = FALSE;
gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL);
/* clean up clcb */
gap_ble_dealloc_clcb(p_clcb);
}
}
}
/*******************************************************************************
**
** Function gap_ble_c_cmpl_cback
**
** Description Client operation complete callback.
**
** Returns void
**
*******************************************************************************/
static void gap_ble_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data)
{
tGAP_CLCB *p_clcb = gap_ble_find_clcb_by_conn_id(conn_id);
UINT16 op_type;
UINT16 min, max, latency, tout;
UINT16 len;
UINT8 *pp;
if (p_clcb == NULL) {
return;
}
op_type = p_clcb->cl_op_uuid;
GAP_TRACE_EVENT ("gap_ble_c_cmpl_cback() - op_code: 0x%02x status: 0x%02x read_type: 0x%04x\n", op, status, op_type);
/* Currently we only issue read commands */
if (op != GATTC_OPTYPE_READ) {
return;
}
if (status != GATT_SUCCESS) {
gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL);
return;
}
pp = p_data->att_value.value;
switch (op_type) {
case GATT_UUID_GAP_PREF_CONN_PARAM:
GAP_TRACE_EVENT ("GATT_UUID_GAP_PREF_CONN_PARAM");
/* Extract the peripheral preferred connection parameters and save them */
STREAM_TO_UINT16 (min, pp);
STREAM_TO_UINT16 (max, pp);
STREAM_TO_UINT16 (latency, pp);
STREAM_TO_UINT16 (tout, pp);
BTM_BleSetPrefConnParams (p_clcb->bda, min, max, latency, tout);
/* release the connection here */
gap_ble_cl_op_cmpl(p_clcb, TRUE, 0, NULL);
break;
case GATT_UUID_GAP_DEVICE_NAME:
GAP_TRACE_EVENT ("GATT_UUID_GAP_DEVICE_NAME\n");
len = (UINT16)strlen((char *)pp);
if (len > GAP_CHAR_DEV_NAME_SIZE) {
len = GAP_CHAR_DEV_NAME_SIZE;
}
gap_ble_cl_op_cmpl(p_clcb, TRUE, len, pp);
break;
case GATT_UUID_GAP_CENTRAL_ADDR_RESOL:
gap_ble_cl_op_cmpl(p_clcb, TRUE, 1, pp);
break;
}
}
/*******************************************************************************
**
** Function gap_ble_accept_cl_operation
**
** Description Start a process to read peer address resolution capability
**
** Returns TRUE if request accepted
**
*******************************************************************************/
BOOLEAN gap_ble_accept_cl_operation(BD_ADDR peer_bda, UINT16 uuid, tGAP_BLE_CMPL_CBACK *p_cback)
{
tGAP_CLCB *p_clcb;
BOOLEAN started = FALSE;
if (p_cback == NULL && uuid != GATT_UUID_GAP_PREF_CONN_PARAM) {
return (started);
}
if ((p_clcb = gap_find_clcb_by_bd_addr (peer_bda)) == NULL) {
if ((p_clcb = gap_clcb_alloc(peer_bda)) == NULL) {
GAP_TRACE_ERROR("gap_ble_accept_cl_operation max connection reached");
return started;
}
}
GAP_TRACE_EVENT ("%s() - BDA: %08x%04x cl_op_uuid: 0x%04x",
__FUNCTION__,
(peer_bda[0] << 24) + (peer_bda[1] << 16) + (peer_bda[2] << 8) + peer_bda[3],
(peer_bda[4] << 8) + peer_bda[5], uuid);
if (GATT_GetConnIdIfConnected(gap_cb.gatt_if, peer_bda, &p_clcb->conn_id, BT_TRANSPORT_LE)) {
p_clcb->connected = TRUE;
}
/* hold the link here */
if (!GATT_Connect(gap_cb.gatt_if, p_clcb->bda, BLE_ADDR_UNKNOWN_TYPE, TRUE, BT_TRANSPORT_LE, FALSE)) {
return started;
}
/* enqueue the request */
gap_ble_enqueue_request(p_clcb, uuid, p_cback);
if (p_clcb->connected && p_clcb->cl_op_uuid == 0) {
started = gap_ble_send_cl_read_request(p_clcb);
} else { /* wait for connection up or pending operation to finish */
started = TRUE;
}
return started;
}
/*******************************************************************************
**
** Function GAP_BleReadPeerPrefConnParams
**
** Description Start a process to read a connected peripheral's preferred
** connection parameters
**
** Returns TRUE if read started, else FALSE if GAP is busy
**
*******************************************************************************/
BOOLEAN GAP_BleReadPeerPrefConnParams (BD_ADDR peer_bda)
{
return gap_ble_accept_cl_operation (peer_bda, GATT_UUID_GAP_PREF_CONN_PARAM, NULL);
}
/*******************************************************************************
**
** Function GAP_BleReadPeerDevName
**
** Description Start a process to read a connected peripheral's device name.
**
** Returns TRUE if request accepted
**
*******************************************************************************/
BOOLEAN GAP_BleReadPeerDevName (BD_ADDR peer_bda, tGAP_BLE_CMPL_CBACK *p_cback)
{
return gap_ble_accept_cl_operation (peer_bda, GATT_UUID_GAP_DEVICE_NAME, p_cback);
}
/*******************************************************************************
**
** Function GAP_BleReadPeerAddressResolutionCap
**
** Description Start a process to read peer address resolution capability
**
** Returns TRUE if request accepted
**
*******************************************************************************/
BOOLEAN GAP_BleReadPeerAddressResolutionCap (BD_ADDR peer_bda, tGAP_BLE_CMPL_CBACK *p_cback)
{
return gap_ble_accept_cl_operation(peer_bda, GATT_UUID_GAP_CENTRAL_ADDR_RESOL, p_cback);
}
/*******************************************************************************
**
** Function GAP_BleCancelReadPeerDevName
**
** Description Cancel reading a peripheral's device name.
**
** Returns TRUE if request accepted
**
*******************************************************************************/
BOOLEAN GAP_BleCancelReadPeerDevName (BD_ADDR peer_bda)
{
tGAP_CLCB *p_clcb = gap_find_clcb_by_bd_addr (peer_bda);
GAP_TRACE_EVENT ("GAP_BleCancelReadPeerDevName() - BDA: %08x%04x cl_op_uuid: 0x%04x",
(peer_bda[0] << 24) + (peer_bda[1] << 16) + (peer_bda[2] << 8) + peer_bda[3],
(peer_bda[4] << 8) + peer_bda[5], (p_clcb == NULL) ? 0 : p_clcb->cl_op_uuid);
if (p_clcb == NULL) {
GAP_TRACE_ERROR ("Cannot cancel current op is not get dev name");
return FALSE;
}
if (!p_clcb->connected) {
if (!GATT_CancelConnect(gap_cb.gatt_if, peer_bda, TRUE)) {
GAP_TRACE_ERROR ("Cannot cancel where No connection id");
return FALSE;
}
}
gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL);
return (TRUE);
}
#endif /* BLE_INCLUDED == TRUE && GATTS_INCLUDED == TRUE*/
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