/******************************************************************************
*
* 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 server of BTA.
*
******************************************************************************/
#include "bt_target.h"
#include <string.h>
#include "bt_common.h"
#include "bta_gatt_api.h"
#include "bta_gatts_int.h"
#include "bta_sys.h"
void btif_to_bta_uuid(tBT_UUID* p_dest, const bt_uuid_t* p_src);
/*****************************************************************************
* Constants
****************************************************************************/
static const tBTA_SYS_REG bta_gatts_reg = {bta_gatts_hdl_event,
BTA_GATTS_Disable};
/*******************************************************************************
*
* Function BTA_GATTS_Disable
*
* Description This function is called to disable GATTS module
*
* Parameters None.
*
* Returns None
*
******************************************************************************/
void BTA_GATTS_Disable(void) {
if (bta_sys_is_register(BTA_ID_GATTS) == false) {
APPL_TRACE_WARNING("GATTS Module not enabled/already disabled");
return;
}
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_GATTS_API_DISABLE_EVT;
bta_sys_sendmsg(p_buf);
bta_sys_deregister(BTA_ID_GATTS);
}
/*******************************************************************************
*
* Function BTA_GATTS_AppRegister
*
* Description This function is called to register application callbacks
* with BTA GATTS module.
*
* Parameters p_app_uuid - applicaiton UUID
* p_cback - pointer to the application callback function.
*
* Returns None
*
******************************************************************************/
void BTA_GATTS_AppRegister(tBT_UUID* p_app_uuid, tBTA_GATTS_CBACK* p_cback) {
tBTA_GATTS_API_REG* p_buf =
(tBTA_GATTS_API_REG*)osi_malloc(sizeof(tBTA_GATTS_API_REG));
/* register with BTA system manager */
if (bta_sys_is_register(BTA_ID_GATTS) == false)
bta_sys_register(BTA_ID_GATTS, &bta_gatts_reg);
p_buf->hdr.event = BTA_GATTS_API_REG_EVT;
if (p_app_uuid != NULL)
memcpy(&p_buf->app_uuid, p_app_uuid, sizeof(tBT_UUID));
p_buf->p_cback = p_cback;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_GATTS_AppDeregister
*
* Description De-register with GATT Server.
*
* Parameters app_id: applicatino ID.
*
* Returns void
*
******************************************************************************/
void BTA_GATTS_AppDeregister(tBTA_GATTS_IF server_if) {
tBTA_GATTS_API_DEREG* p_buf =
(tBTA_GATTS_API_DEREG*)osi_malloc(sizeof(tBTA_GATTS_API_DEREG));
p_buf->hdr.event = BTA_GATTS_API_DEREG_EVT;
p_buf->server_if = server_if;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_GATTS_AddService
*
* Description Add the given |service| and all included elements to the
* GATT database. a |BTA_GATTS_ADD_SRVC_EVT| is triggered to
* report the status and attribute handles.
*
* Parameters server_if: server interface.
* service: pointer vector describing service.
*
* Returns Returns |BTA_GATT_OK| on success or |BTA_GATT_ERROR| if the
* service cannot be added.
*
******************************************************************************/
extern uint16_t BTA_GATTS_AddService(tBTA_GATTS_IF server_if,
vector<btgatt_db_element_t>& service) {
uint8_t rcb_idx =
bta_gatts_find_app_rcb_idx_by_app_if(&bta_gatts_cb, server_if);
APPL_TRACE_ERROR("%s: rcb_idx = %d", __func__, rcb_idx);
if (rcb_idx == BTA_GATTS_INVALID_APP) return BTA_GATT_ERROR;
uint8_t srvc_idx = bta_gatts_alloc_srvc_cb(&bta_gatts_cb, rcb_idx);
if (srvc_idx == BTA_GATTS_INVALID_APP) return BTA_GATT_ERROR;
uint16_t status = GATTS_AddService(server_if, service.data(), service.size());
if (status == GATT_SERVICE_STARTED) {
btif_to_bta_uuid(&bta_gatts_cb.srvc_cb[srvc_idx].service_uuid,
&service[0].uuid);
// service_id is equal to service start handle
bta_gatts_cb.srvc_cb[srvc_idx].service_id = service[0].attribute_handle;
bta_gatts_cb.srvc_cb[srvc_idx].idx = srvc_idx;
return BTA_GATT_OK;
} else {
memset(&bta_gatts_cb.srvc_cb[srvc_idx], 0, sizeof(tBTA_GATTS_SRVC_CB));
APPL_TRACE_ERROR("%s: service creation failed.", __func__);
return BTA_GATT_ERROR;
}
}
/*******************************************************************************
*
* Function BTA_GATTS_DeleteService
*
* Description This function is called to delete a service. When this is
* done, a callback event BTA_GATTS_DELETE_EVT is report with
* the status.
*
* Parameters service_id: service_id to be deleted.
*
* Returns returns none.
*
******************************************************************************/
void BTA_GATTS_DeleteService(uint16_t service_id) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_GATTS_API_DEL_SRVC_EVT;
p_buf->layer_specific = service_id;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_GATTS_StopService
*
* Description This function is called to stop a service.
*
* Parameters service_id - service to be topped.
*
* Returns None
*
******************************************************************************/
void BTA_GATTS_StopService(uint16_t service_id) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_GATTS_API_STOP_SRVC_EVT;
p_buf->layer_specific = service_id;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_GATTS_HandleValueIndication
*
* Description This function is called to read a characteristics
* descriptor.
*
* Parameters bda - remote device bd address to indicate.
* attr_id - attribute ID to indicate.
* value - data to indicate.
* need_confirm - if this indication expects a confirmation or
* not.
*
* Returns None
*
******************************************************************************/
void BTA_GATTS_HandleValueIndication(uint16_t conn_id, uint16_t attr_id,
std::vector<uint8_t> value,
bool need_confirm) {
tBTA_GATTS_API_INDICATION* p_buf =
(tBTA_GATTS_API_INDICATION*)osi_calloc(sizeof(tBTA_GATTS_API_INDICATION));
p_buf->hdr.event = BTA_GATTS_API_INDICATION_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->attr_id = attr_id;
p_buf->need_confirm = need_confirm;
if (value.size() > 0) {
p_buf->len = value.size();
memcpy(p_buf->value, value.data(), value.size());
}
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_GATTS_SendRsp
*
* Description This function is called to send a response to a request.
*
* Parameters conn_id - connection identifier.
* trans_id - transaction ID.
* status - response status
* p_msg - response data.
*
* Returns None
*
******************************************************************************/
void BTA_GATTS_SendRsp(uint16_t conn_id, uint32_t trans_id,
tBTA_GATT_STATUS status, tBTA_GATTS_RSP* p_msg) {
const size_t len = sizeof(tBTA_GATTS_API_RSP) + sizeof(tBTA_GATTS_RSP);
tBTA_GATTS_API_RSP* p_buf = (tBTA_GATTS_API_RSP*)osi_calloc(len);
p_buf->hdr.event = BTA_GATTS_API_RSP_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->trans_id = trans_id;
p_buf->status = status;
if (p_msg != NULL) {
p_buf->p_rsp = (tBTA_GATTS_RSP*)(p_buf + 1);
memcpy(p_buf->p_rsp, p_msg, sizeof(tBTA_GATTS_RSP));
}
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_GATTS_Open
*
* Description Open a direct open connection or add a background auto
* connection bd address
*
* Parameters server_if: server interface.
* remote_bda: remote device BD address.
* is_direct: direct connection or background auto connection
* transport : Transport on which GATT connection to be opened
* (BR/EDR or LE)
*
* Returns void
*
******************************************************************************/
void BTA_GATTS_Open(tBTA_GATTS_IF server_if, BD_ADDR remote_bda, bool is_direct,
tBTA_GATT_TRANSPORT transport) {
tBTA_GATTS_API_OPEN* p_buf =
(tBTA_GATTS_API_OPEN*)osi_malloc(sizeof(tBTA_GATTS_API_OPEN));
p_buf->hdr.event = BTA_GATTS_API_OPEN_EVT;
p_buf->server_if = server_if;
p_buf->is_direct = is_direct;
p_buf->transport = transport;
memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_GATTS_CancelOpen
*
* Description Cancel a direct open connection or remove a background auto
* connection bd address
*
* Parameters server_if: server interface.
* remote_bda: remote device BD address.
* is_direct: direct connection or background auto connection
*
* Returns void
*
******************************************************************************/
void BTA_GATTS_CancelOpen(tBTA_GATTS_IF server_if, BD_ADDR remote_bda,
bool is_direct) {
tBTA_GATTS_API_CANCEL_OPEN* p_buf = (tBTA_GATTS_API_CANCEL_OPEN*)osi_malloc(
sizeof(tBTA_GATTS_API_CANCEL_OPEN));
p_buf->hdr.event = BTA_GATTS_API_CANCEL_OPEN_EVT;
p_buf->server_if = server_if;
p_buf->is_direct = is_direct;
memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_GATTS_Close
*
* Description Close a connection a remote device.
*
* Parameters conn_id: connectino ID to be closed.
*
* Returns void
*
******************************************************************************/
void BTA_GATTS_Close(uint16_t conn_id) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_GATTS_API_CLOSE_EVT;
p_buf->layer_specific = conn_id;
bta_sys_sendmsg(p_buf);
}