/******************************************************************************
*
* Copyright (C) 2010-2012 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.
*
******************************************************************************/
/******************************************************************************
*
* This is the implementation of the API for GATT module of BTA.
*
******************************************************************************/
#include "bt_target.h"
#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
#include <string.h>
#include "gki.h"
#include "bta_sys.h"
#include "bta_gatt_api.h"
#include "bta_gattc_int.h"
/*****************************************************************************
** Externs
*****************************************************************************/
#if BTA_DYNAMIC_MEMORY == FALSE
extern tBTA_GATTC_CB bta_gattc_cb;
#endif
/*****************************************************************************
** Constants
*****************************************************************************/
static const tBTA_SYS_REG bta_gatt_reg =
{
bta_gattc_hdl_event,
NULL /* need a disable functino to be called when BT is disabled */
};
/*******************************************************************************
**
** Function BTA_GATTC_Init
**
** Description This function is called to initalize GATTC module
**
** Parameters None
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_Init()
{
memset(&bta_gattc_cb, 0, sizeof(tBTA_GATTC_CB));
}
/*******************************************************************************
**
** Function BTA_GATTC_AppRegister
**
** Description This function is called to register application callbacks
** with BTA GATTC module.
**
** Parameters p_app_uuid - applicaiton UUID
** p_client_cb - pointer to the application callback function.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_AppRegister(tBT_UUID *p_app_uuid, tBTA_GATTC_CBACK *p_client_cb)
{
tBTA_GATTC_API_REG *p_buf;
/* register with BTA system manager */
GKI_sched_lock();
bta_sys_register(BTA_ID_GATTC, &bta_gatt_reg);
GKI_sched_unlock();
if ((p_buf = (tBTA_GATTC_API_REG *) GKI_getbuf(sizeof(tBTA_GATTC_API_REG))) != NULL)
{
p_buf->hdr.event = BTA_GATTC_API_REG_EVT;
if (p_app_uuid != NULL)
memcpy(&p_buf->app_uuid, p_app_uuid, sizeof(tBT_UUID));
p_buf->p_cback = p_client_cb;
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_AppDeregister
**
** Description This function is called to deregister an application
** from BTA GATTC module.
**
** Parameters client_if - client interface identifier.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_AppDeregister(tBTA_GATTC_IF client_if)
{
tBTA_GATTC_API_DEREG *p_buf;
if ((p_buf = (tBTA_GATTC_API_DEREG *) GKI_getbuf(sizeof(tBTA_GATTC_API_DEREG))) != NULL)
{
p_buf->hdr.event = BTA_GATTC_API_DEREG_EVT;
p_buf->client_if = client_if;
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_Open
**
** Description Open a direct connection or add a background auto connection
** bd address
**
** Parameters client_if: server interface.
** remote_bda: remote device BD address.
** is_direct: direct connection or background auto connection
**
** Returns void
**
*******************************************************************************/
void BTA_GATTC_Open(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, BOOLEAN is_direct)
{
tBTA_GATTC_API_OPEN *p_buf;
if ((p_buf = (tBTA_GATTC_API_OPEN *) GKI_getbuf(sizeof(tBTA_GATTC_API_OPEN))) != NULL)
{
p_buf->hdr.event = BTA_GATTC_API_OPEN_EVT;
p_buf->client_if = client_if;
p_buf->is_direct = is_direct;
memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_CancelOpen
**
** Description Cancel a direct open connection or remove a background auto connection
** bd address
**
** Parameters client_if: server interface.
** remote_bda: remote device BD address.
** is_direct: direct connection or background auto connection
**
** Returns void
**
*******************************************************************************/
void BTA_GATTC_CancelOpen(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, BOOLEAN is_direct)
{
tBTA_GATTC_API_CANCEL_OPEN *p_buf;
if ((p_buf = (tBTA_GATTC_API_CANCEL_OPEN *) GKI_getbuf(sizeof(tBTA_GATTC_API_CANCEL_OPEN))) != NULL)
{
p_buf->hdr.event = BTA_GATTC_API_CANCEL_OPEN_EVT;
p_buf->client_if = client_if;
p_buf->is_direct = is_direct;
memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_Close
**
** Description Close a connection to a GATT server.
**
** Parameters conn_id: connectino ID to be closed.
**
** Returns void
**
*******************************************************************************/
void BTA_GATTC_Close(UINT16 conn_id)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
{
p_buf->event = BTA_GATTC_API_CLOSE_EVT;
p_buf->layer_specific = conn_id;
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_ServiceSearchRequest
**
** Description This function is called to request a GATT service discovery
** on a GATT server. This function report service search result
** by a callback event, and followed by a service search complete
** event.
**
** Parameters conn_id: connection ID.
** p_srvc_uuid: a UUID of the service application is interested in.
** If Null, discover for all services.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_ServiceSearchRequest (UINT16 conn_id, tBT_UUID *p_srvc_uuid)
{
tBTA_GATTC_API_SEARCH *p_buf;
UINT16 len = sizeof(tBTA_GATTC_API_SEARCH) + sizeof(tBT_UUID);
if ((p_buf = (tBTA_GATTC_API_SEARCH *) GKI_getbuf(len)) != NULL)
{
memset(p_buf, 0, len);
p_buf->hdr.event = BTA_GATTC_API_SEARCH_EVT;
p_buf->hdr.layer_specific = conn_id;
if (p_srvc_uuid)
{
memcpy(&p_buf->srvc_uuid, p_srvc_uuid, sizeof(tBT_UUID));
}
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_GetFirstChar
**
** Description This function is called to find the first characteristic of the
** service on the given server.
**
** Parameters conn_id: connection ID which identify the server.
** p_srvc_id: the service ID of which the characteristic is belonged to.
** p_char_uuid_cond: Characteristic UUID, if NULL find the first available
** characteristic.
** p_char_result: output parameter which will store the GATT
** characteristic ID.
** p_property: output parameter to carry the characteristic property.
**
** Returns returns status.
**
*******************************************************************************/
tBTA_GATT_STATUS BTA_GATTC_GetFirstChar (UINT16 conn_id, tBTA_GATT_SRVC_ID *p_srvc_id,
tBT_UUID *p_char_uuid_cond,
tBTA_GATTC_CHAR_ID *p_char_result,
tBTA_GATT_CHAR_PROP *p_property)
{
tBTA_GATT_STATUS status;
if (!p_srvc_id || !p_char_result)
return BTA_GATT_ILLEGAL_PARAMETER;
if ((status = bta_gattc_query_cache(conn_id, BTA_GATTC_ATTR_TYPE_CHAR, p_srvc_id, NULL,
p_char_uuid_cond, &p_char_result->char_id, p_property))
== BTA_GATT_OK)
{
memcpy(&p_char_result->srvc_id, p_srvc_id, sizeof(tBTA_GATT_SRVC_ID));
}
return status;
}
/*******************************************************************************
**
** Function BTA_GATTC_GetNextChar
**
** Description This function is called to find the next characteristic of the
** service on the given server.
**
** Parameters conn_id: connection ID which identify the server.
** p_start_char_id: start the characteristic search from the next record
** after the one identified by char_id.
** p_char_uuid_cond: Characteristic UUID, if NULL find the first available
** characteristic.
** p_char_result: output parameter which will store the GATT
** characteristic ID.
** p_property: output parameter to carry the characteristic property.
**
** Returns returns status.
**
*******************************************************************************/
tBTA_GATT_STATUS BTA_GATTC_GetNextChar (UINT16 conn_id,
tBTA_GATTC_CHAR_ID *p_start_char_id,
tBT_UUID *p_char_uuid_cond,
tBTA_GATTC_CHAR_ID *p_char_result,
tBTA_GATT_CHAR_PROP *p_property)
{
tBTA_GATT_STATUS status;
if (!p_start_char_id || !p_char_result)
return BTA_GATT_ILLEGAL_PARAMETER;
if ((status = bta_gattc_query_cache(conn_id, BTA_GATTC_ATTR_TYPE_CHAR,
&p_start_char_id->srvc_id,
&p_start_char_id->char_id,
p_char_uuid_cond,
&p_char_result->char_id,
p_property))
== BTA_GATT_OK)
{
memcpy(&p_char_result->srvc_id, &p_start_char_id->srvc_id, sizeof(tBTA_GATT_SRVC_ID));
}
return status;
}
/*******************************************************************************
**
** Function BTA_GATTC_GetFirstCharDescr
**
** Description This function is called to find the first characteristic descriptor of the
** characteristic on the given server.
**
** Parameters conn_id: connection ID which identify the server.
** p_char_id: the characteristic ID of which the descriptor is belonged to.
** p_descr_uuid_cond: Characteristic Descr UUID, if NULL find the first available
** characteristic.
** p_descr_result: output parameter which will store the GATT
** characteristic descriptor ID.
**
** Returns returns status.
**
*******************************************************************************/
tBTA_GATT_STATUS BTA_GATTC_GetFirstCharDescr (UINT16 conn_id, tBTA_GATTC_CHAR_ID *p_char_id,
tBT_UUID *p_descr_uuid_cond,
tBTA_GATTC_CHAR_DESCR_ID *p_descr_result)
{
tBTA_GATT_STATUS status;
if (!p_char_id || !p_descr_result)
return BTA_GATT_ILLEGAL_PARAMETER;
memset(p_descr_result, 0, sizeof(tBTA_GATTC_CHAR_DESCR_ID));
if ((status = bta_gattc_query_cache(conn_id,
BTA_GATTC_ATTR_TYPE_CHAR_DESCR,
&p_char_id->srvc_id,
&p_char_id->char_id,
p_descr_uuid_cond,
&p_descr_result->char_id.char_id,
NULL))
== BTA_GATT_OK)
{
memcpy(&p_descr_result->descr_type, &p_descr_result->char_id.char_id.uuid, sizeof(tBT_UUID));
memcpy(&p_descr_result->char_id, p_char_id, sizeof(tBTA_GATTC_CHAR_ID));
}
return status;
}
/*******************************************************************************
**
** Function BTA_GATTC_GetNextCharDescr
**
** Description This function is called to find the next characteristic descriptor
** of the characterisctic.
**
** Parameters conn_id: connection ID which identify the server.
** p_start_descr_id: start the characteristic search from the next record
** after the one identified by p_start_descr_id.
** p_descr_uuid_cond: Characteristic descriptor UUID, if NULL find
** the first available characteristic descriptor.
** p_descr_result: output parameter which will store the GATT
** characteristic descriptor ID.
**
** Returns returns status.
**
*******************************************************************************/
tBTA_GATT_STATUS BTA_GATTC_GetNextCharDescr (UINT16 conn_id,
tBTA_GATTC_CHAR_DESCR_ID *p_start_descr_id,
tBT_UUID *p_descr_uuid_cond,
tBTA_GATTC_CHAR_DESCR_ID *p_descr_result)
{
tBTA_GATT_STATUS status;
if (!p_start_descr_id || !p_descr_result)
return BTA_GATT_ILLEGAL_PARAMETER;
memset(p_descr_result, 0, sizeof(tBTA_GATTC_CHAR_DESCR_ID));
if ((status = bta_gattc_query_cache(conn_id, BTA_GATTC_ATTR_TYPE_CHAR_DESCR,
&p_start_descr_id->char_id.srvc_id,
&p_start_descr_id->char_id.char_id,
p_descr_uuid_cond,
&p_descr_result->char_id.char_id,
(void *)&p_start_descr_id->descr_type))
== BTA_GATT_OK)
{
memcpy(&p_descr_result->descr_type, &p_descr_result->char_id.char_id.uuid, sizeof(tBT_UUID));
memcpy(&p_descr_result->char_id, p_start_descr_id, sizeof(tBTA_GATTC_CHAR_ID));
}
return status;
}
/*******************************************************************************
**
** Function BTA_GATTC_GetFirstIncludedService
**
** Description This function is called to find the first included service of the
** service on the given server.
**
** Parameters conn_id: connection ID which identify the server.
** p_srvc_id: the service ID of which the characteristic is belonged to.
** p_uuid_cond: Characteristic UUID, if NULL find the first available
** characteristic.
** p_result: output parameter which will store the GATT ID
** of the included service found.
**
** Returns returns status.
**
*******************************************************************************/
tBTA_GATT_STATUS BTA_GATTC_GetFirstIncludedService(UINT16 conn_id, tBTA_GATT_SRVC_ID *p_srvc_id,
tBT_UUID *p_uuid_cond, tBTA_GATTC_INCL_SVC_ID *p_result)
{
tBTA_GATT_STATUS status;
if (!p_srvc_id || !p_result)
return BTA_GATT_ILLEGAL_PARAMETER;
if ((status = bta_gattc_query_cache(conn_id,
BTA_GATTC_ATTR_TYPE_INCL_SRVC,
p_srvc_id,
NULL,
p_uuid_cond,
&p_result->incl_svc_id.id,
(tBTA_GATT_CHAR_PROP *)&p_result->incl_svc_id.is_primary))
== BTA_GATT_OK)
{
memcpy(&p_result->srvc_id, p_srvc_id, sizeof(tBTA_GATT_SRVC_ID));
}
return status;
}
/*******************************************************************************
**
** Function BTA_GATTC_GetNextIncludedService
**
** Description This function is called to find the next included service of the
** service on the given server.
**
** Parameters conn_id: connection ID which identify the server.
** p_start_id: start the search from the next record
** after the one identified by p_start_id.
** p_uuid_cond: Included service UUID, if NULL find the first available
** included service.
** p_result: output parameter which will store the GATT ID
** of the included service found.
**
** Returns returns status.
**
*******************************************************************************/
tBTA_GATT_STATUS BTA_GATTC_GetNextIncludedService(UINT16 conn_id,
tBTA_GATTC_INCL_SVC_ID *p_start_id,
tBT_UUID *p_uuid_cond,
tBTA_GATTC_INCL_SVC_ID *p_result)
{
tBTA_GATT_STATUS status;
if (!p_start_id || !p_result)
return BTA_GATT_ILLEGAL_PARAMETER;
if ((status = bta_gattc_query_cache(conn_id,
BTA_GATTC_ATTR_TYPE_INCL_SRVC,
&p_start_id->srvc_id,
&p_start_id->incl_svc_id.id,
p_uuid_cond,
&p_result->incl_svc_id.id,
(tBTA_GATT_CHAR_PROP *)&p_result->incl_svc_id.is_primary))
== BTA_GATT_OK)
{
memcpy(&p_result->srvc_id, &p_start_id->srvc_id, sizeof(tBTA_GATT_SRVC_ID));
}
return status;
}
/*******************************************************************************
**
** Function BTA_GATTC_ReadCharacteristic
**
** Description This function is called to read a service's characteristics of
** the given characteritisc ID.
**
** Parameters conn_id - connectino ID.
** p_char_id - characteritic ID to read.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_ReadCharacteristic(UINT16 conn_id, tBTA_GATTC_CHAR_ID *p_char_id,
tBTA_GATT_AUTH_REQ auth_req)
{
tBTA_GATTC_API_READ *p_buf;
if ((p_buf = (tBTA_GATTC_API_READ *) GKI_getbuf(sizeof(tBTA_GATTC_API_READ))) != NULL)
{
memset(p_buf, 0, sizeof(tBTA_GATTC_API_READ));
p_buf->hdr.event = BTA_GATTC_API_READ_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->auth_req = auth_req;
memcpy(&p_buf->srvc_id, &p_char_id->srvc_id, sizeof(tBTA_GATT_SRVC_ID));
memcpy(&p_buf->char_id, &p_char_id->char_id, sizeof(tBTA_GATT_ID));
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_ReadCharDescr
**
** Description This function is called to read a characteristics descriptor.
**
** Parameters conn_id - connection ID.
** p_char_descr_id - characteritic descriptor ID to read.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_ReadCharDescr (UINT16 conn_id,
tBTA_GATTC_CHAR_DESCR_ID *p_descr_id,
tBTA_GATT_AUTH_REQ auth_req)
{
tBTA_GATTC_API_READ *p_buf;
if ((p_buf = (tBTA_GATTC_API_READ *) GKI_getbuf(sizeof(tBTA_GATTC_API_READ))) != NULL)
{
memset(p_buf, 0, sizeof(tBTA_GATTC_API_READ));
p_buf->hdr.event = BTA_GATTC_API_READ_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->auth_req = auth_req;
memcpy(&p_buf->srvc_id, &p_descr_id->char_id.srvc_id, sizeof(tBTA_GATT_SRVC_ID));
memcpy(&p_buf->char_id, &p_descr_id->char_id.char_id, sizeof(tBTA_GATT_ID));
memcpy(&p_buf->descr_type, &p_descr_id->descr_type, sizeof(tBT_UUID));
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_ReadMultiple
**
** Description This function is called to read multiple characteristic or
** characteristic descriptors.
**
** Parameters conn_id - connectino ID.
** p_read_multi - pointer to the read multiple parameter.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_ReadMultiple(UINT16 conn_id, tBTA_GATTC_MULTI *p_read_multi,
tBTA_GATT_AUTH_REQ auth_req)
{
tBTA_GATTC_API_READ_MULTI *p_buf;
tBTA_GATTC_ATTR_ID *p_value;
UINT16 len = (UINT16)(sizeof(tBTA_GATTC_API_READ_MULTI) +
p_read_multi->num_attr * sizeof(tBTA_GATTC_ATTR_ID));
UINT8 i;
if ((p_buf = (tBTA_GATTC_API_READ_MULTI *) GKI_getbuf(len)) != NULL)
{
memset(p_buf, 0, len);
p_buf->hdr.event = BTA_GATTC_API_READ_MULTI_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->auth_req = auth_req;
p_buf->num_attr = p_read_multi->num_attr;
if (p_buf->num_attr > 0)
{
p_buf->p_id_list = p_value = (tBTA_GATTC_ATTR_ID *)(p_buf + 1);
for (i = 0; i < p_buf->num_attr; i ++, p_value ++)
{
memcpy(p_value, &p_read_multi->id_list[i], sizeof(tBTA_GATTC_ATTR_ID));
}
}
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_WriteCharValue
**
** Description This function is called to write characteristic value.
**
** Parameters conn_id - connection ID.
** p_char_id - characteristic ID to write.
** write_type - type of write.
** len: length of the data to be written.
** p_value - the value to be written.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_WriteCharValue ( UINT16 conn_id,
tBTA_GATTC_CHAR_ID *p_char_id,
tBTA_GATTC_WRITE_TYPE write_type,
UINT16 len,
UINT8 *p_value,
tBTA_GATT_AUTH_REQ auth_req)
{
tBTA_GATTC_API_WRITE *p_buf;
if ((p_buf = (tBTA_GATTC_API_WRITE *) GKI_getbuf((UINT16)(sizeof(tBTA_GATTC_API_WRITE) + len))) != NULL)
{
memset(p_buf, 0, sizeof(tBTA_GATTC_API_WRITE) + len);
p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->auth_req = auth_req;
memcpy(&p_buf->srvc_id, &p_char_id->srvc_id, sizeof(tBTA_GATT_SRVC_ID));
memcpy(&p_buf->char_id, &p_char_id->char_id, sizeof(tBTA_GATT_ID));
p_buf->write_type = write_type;
p_buf->len = len;
if (p_value && len > 0)
{
p_buf->p_value = (UINT8 *)(p_buf + 1);
memcpy(p_buf->p_value, p_value, len);
}
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_WriteCharDescr
**
** Description This function is called to write characteristic descriptor value.
**
** Parameters conn_id - connection ID
** p_char_descr_id - characteristic descriptor ID to write.
** write_type - write type.
** p_value - the value to be written.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_WriteCharDescr (UINT16 conn_id,
tBTA_GATTC_CHAR_DESCR_ID *p_char_descr_id,
tBTA_GATTC_WRITE_TYPE write_type,
tBTA_GATT_UNFMT *p_data,
tBTA_GATT_AUTH_REQ auth_req)
{
tBTA_GATTC_API_WRITE *p_buf;
UINT16 len = sizeof(tBTA_GATTC_API_WRITE);
if (p_data != NULL)
len += p_data->len;
if ((p_buf = (tBTA_GATTC_API_WRITE *) GKI_getbuf(len)) != NULL)
{
memset(p_buf, 0, len);
p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->auth_req = auth_req;
memcpy(&p_buf->srvc_id, &p_char_descr_id->char_id.srvc_id, sizeof(tBTA_GATT_SRVC_ID));
memcpy(&p_buf->char_id, &p_char_descr_id->char_id.char_id, sizeof(tBTA_GATT_ID));
memcpy(&p_buf->descr_type, &p_char_descr_id->descr_type, sizeof(tBT_UUID));
p_buf->write_type = write_type;
if (p_data && p_data->len != 0)
{
p_buf->p_value = (UINT8 *)(p_buf + 1);
p_buf->len = p_data->len;
/* pack the descr data */
memcpy(p_buf->p_value, p_data->p_value, p_data->len);
}
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_PrepareWrite
**
** Description This function is called to prepare write a characteristic value.
**
** Parameters conn_id - connection ID.
** p_char_id - GATT characteritic ID of the service.
** offset - offset of the write value.
** len: length of the data to be written.
** p_value - the value to be written.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_PrepareWrite (UINT16 conn_id, tBTA_GATTC_CHAR_ID *p_char_id,
UINT16 offset, UINT16 len, UINT8 *p_value,
tBTA_GATT_AUTH_REQ auth_req)
{
tBTA_GATTC_API_WRITE *p_buf;
if ((p_buf = (tBTA_GATTC_API_WRITE *) GKI_getbuf((UINT16)(sizeof(tBTA_GATTC_API_WRITE) + len))) != NULL)
{
memset(p_buf, 0, sizeof(tBTA_GATTC_API_WRITE) + len);
p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->auth_req = auth_req;
memcpy(&p_buf->srvc_id, &p_char_id->srvc_id, sizeof(tBTA_GATT_SRVC_ID));
memcpy(&p_buf->char_id, &p_char_id->char_id, sizeof(tBTA_GATT_ID));
p_buf->write_type = BTA_GATTC_WRITE_PREPARE;
p_buf->offset = offset;
p_buf->len = len;
if (p_value && len > 0)
{
p_buf->p_value = (UINT8 *)(p_buf + 1);
memcpy(p_buf->p_value, p_value, len);
}
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_ExecuteWrite
**
** Description This function is called to execute write a prepare write sequence.
**
** Parameters conn_id - connection ID.
** is_execute - execute or cancel.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_ExecuteWrite (UINT16 conn_id, BOOLEAN is_execute)
{
tBTA_GATTC_API_EXEC *p_buf;
if ((p_buf = (tBTA_GATTC_API_EXEC *) GKI_getbuf((UINT16)sizeof(tBTA_GATTC_API_EXEC))) != NULL)
{
memset(p_buf, 0, sizeof(tBTA_GATTC_API_EXEC));
p_buf->hdr.event = BTA_GATTC_API_EXEC_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->is_execute = is_execute;
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_SendIndConfirm
**
** Description This function is called to send handle value confirmation.
**
** Parameters conn_id - connection ID.
** p_char_id - characteristic ID to confirm.
**
** Returns None
**
*******************************************************************************/
void BTA_GATTC_SendIndConfirm (UINT16 conn_id, tBTA_GATTC_CHAR_ID *p_char_id)
{
tBTA_GATTC_API_CONFIRM *p_buf;
APPL_TRACE_API3("BTA_GATTC_SendIndConfirm conn_id=%d service uuid1=0x%x char uuid=0x%x",
conn_id, p_char_id->srvc_id.id.uuid.uu.uuid16, p_char_id->char_id.uuid.uu.uuid16);
if ((p_buf = (tBTA_GATTC_API_CONFIRM *) GKI_getbuf(sizeof(tBTA_GATTC_API_CONFIRM))) != NULL)
{
memset(p_buf, 0, sizeof(tBTA_GATTC_API_CONFIRM));
p_buf->hdr.event = BTA_GATTC_API_CONFIRM_EVT;
p_buf->hdr.layer_specific = conn_id;
memcpy(&p_buf->srvc_id, &p_char_id->srvc_id, sizeof(tBTA_GATT_SRVC_ID));
memcpy(&p_buf->char_id, &p_char_id->char_id, sizeof(tBTA_GATT_ID));
bta_sys_sendmsg(p_buf);
}
return;
}
/*******************************************************************************
**
** Function BTA_GATTC_RegisterForNotifications
**
** Description This function is called to register for notification of a service.
**
** Parameters client_if - client interface.
** bda - target GATT server.
** p_char_id - pointer to GATT characteristic ID.
**
** Returns OK if registration succeed, otherwise failed.
**
*******************************************************************************/
tBTA_GATT_STATUS BTA_GATTC_RegisterForNotifications (tBTA_GATTC_IF client_if,
BD_ADDR bda,
tBTA_GATTC_CHAR_ID *p_char_id)
{
tBTA_GATTC_RCB *p_clreg;
tBTA_GATT_STATUS status = BTA_GATT_ILLEGAL_PARAMETER;
UINT8 i;
if (!p_char_id)
{
APPL_TRACE_ERROR0("deregistration failed, unknow char id");
return status;
}
/* lock other GKI task */
GKI_sched_lock();
if ((p_clreg = bta_gattc_cl_get_regcb(client_if)) != NULL)
{
for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
{
if ( p_clreg->notif_reg[i].in_use &&
!memcmp(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN) &&
bta_gattc_charid_compare(&p_clreg->notif_reg[i].char_id, p_char_id))
{
APPL_TRACE_WARNING0("notification already registered");
status = BTA_GATT_OK;
break;
}
}
if (status != BTA_GATT_OK)
{
for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
{
if (!p_clreg->notif_reg[i].in_use)
{
memset((void *)&p_clreg->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
p_clreg->notif_reg[i].in_use = TRUE;
memcpy(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN);
p_clreg->notif_reg[i].char_id.srvc_id.is_primary = p_char_id->srvc_id.is_primary;
bta_gattc_cpygattid(&p_clreg->notif_reg[i].char_id.srvc_id.id, &p_char_id->srvc_id.id);
bta_gattc_cpygattid(&p_clreg->notif_reg[i].char_id.char_id, &p_char_id->char_id);
status = BTA_GATT_OK;
break;
}
}
if (i == BTA_GATTC_NOTIF_REG_MAX)
{
status = BTA_GATT_NO_RESOURCES;
APPL_TRACE_ERROR0("Max Notification Reached, registration failed.");
}
}
}
else
{
APPL_TRACE_ERROR1("Client_if: %d Not Registered", client_if);
}
GKI_sched_unlock();
return status;
}
/*******************************************************************************
**
** Function BTA_GATTC_DeregisterForNotifications
**
** Description This function is called to de-register for notification of a service.
**
** Parameters client_if - client interface.
** bda - target GATT server.
** p_char_id - pointer to GATT characteristic ID.
**
** Returns OK if deregistration succeed, otherwise failed.
**
*******************************************************************************/
tBTA_GATT_STATUS BTA_GATTC_DeregisterForNotifications (tBTA_GATTC_IF client_if,
BD_ADDR bda,
tBTA_GATTC_CHAR_ID *p_char_id)
{
tBTA_GATTC_RCB *p_clreg;
tBTA_GATT_STATUS status = BTA_GATT_ILLEGAL_PARAMETER;
UINT8 i;
if (!p_char_id)
{
APPL_TRACE_ERROR0("deregistration failed, unknow char id");
return status;
}
/* lock other GKI task */
GKI_sched_lock();
if ((p_clreg = bta_gattc_cl_get_regcb(client_if)) != NULL)
{
for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
{
if (p_clreg->notif_reg[i].in_use &&
!memcmp(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN) &&
bta_gattc_charid_compare(&p_clreg->notif_reg[i].char_id, p_char_id))
{
APPL_TRACE_DEBUG0("Deregistered.");
memset(&p_clreg->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
status = BTA_GATT_OK;
break;
}
}
if (i == BTA_GATTC_NOTIF_REG_MAX)
{
status = BTA_GATT_ERROR;
APPL_TRACE_ERROR0("registration not found");
}
}
else
{
APPL_TRACE_ERROR1("Client_if: %d Not Registered", client_if);
}
GKI_sched_unlock();
return status;
}
/*******************************************************************************
**
** Function BTA_GATTC_Refresh
**
** Description Refresh the server cache of the remote device
**
** Parameters remote_bda: remote device BD address.
**
** Returns void
**
*******************************************************************************/
void BTA_GATTC_Refresh(BD_ADDR remote_bda)
{
tBTA_GATTC_API_OPEN *p_buf;
if ((p_buf = (tBTA_GATTC_API_OPEN *) GKI_getbuf(sizeof(tBTA_GATTC_API_OPEN))) != NULL)
{
p_buf->hdr.event = BTA_GATTC_API_REFRESH_EVT;
memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
bta_sys_sendmsg(p_buf);
}
return;
}
#endif /* BTA_GATT_INCLUDED */