/******************************************************************************
*
* Copyright (C) 2003-2012 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 the audio gateway (AG)
* subsystem of BTA, Broadcom's Bluetooth application layer for mobile
* phones.
*
******************************************************************************/
#include "bta_ag_api.h"
#include <string.h>
#include "bt_common.h"
#include "bta_ag_int.h"
#include "bta_api.h"
#include "bta_sys.h"
/*****************************************************************************
* Constants
****************************************************************************/
static const tBTA_SYS_REG bta_ag_reg = {bta_ag_hdl_event, BTA_AgDisable};
/*******************************************************************************
*
* Function BTA_AgEnable
*
* Description Enable the audio gateway service. When the enable
* operation is complete the callback function will be
* called with a BTA_AG_ENABLE_EVT. This function must
* be called before other function in the AG API are
* called.
*
* Returns BTA_SUCCESS if OK, BTA_FAILURE otherwise.
*
******************************************************************************/
tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode,
tBTA_AG_CBACK* p_cback) {
/* Error if AG is already enabled, or AG is in the middle of disabling. */
for (int idx = 0; idx < BTA_AG_NUM_SCB; idx++) {
if (bta_ag_cb.scb[idx].in_use) {
APPL_TRACE_ERROR("BTA_AgEnable: FAILED, AG already enabled.");
return BTA_FAILURE;
}
}
/* register with BTA system manager */
bta_sys_register(BTA_ID_AG, &bta_ag_reg);
tBTA_AG_API_ENABLE* p_buf =
(tBTA_AG_API_ENABLE*)osi_malloc(sizeof(tBTA_AG_API_ENABLE));
p_buf->hdr.event = BTA_AG_API_ENABLE_EVT;
p_buf->parse_mode = parse_mode;
p_buf->p_cback = p_cback;
bta_sys_sendmsg(p_buf);
return BTA_SUCCESS;
}
/*******************************************************************************
*
* Function BTA_AgDisable
*
* Description Disable the audio gateway service
*
*
* Returns void
*
******************************************************************************/
void BTA_AgDisable(void) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_AG_API_DISABLE_EVT;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AgRegister
*
* Description Register an Audio Gateway service.
*
*
* Returns void
*
******************************************************************************/
void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask,
tBTA_AG_FEAT features, const char* p_service_names[],
uint8_t app_id) {
tBTA_AG_API_REGISTER* p_buf =
(tBTA_AG_API_REGISTER*)osi_malloc(sizeof(tBTA_AG_API_REGISTER));
p_buf->hdr.event = BTA_AG_API_REGISTER_EVT;
p_buf->features = features;
p_buf->sec_mask = sec_mask;
p_buf->services = services;
p_buf->app_id = app_id;
for (int i = 0; i < BTA_AG_NUM_IDX; i++) {
if (p_service_names[i])
strlcpy(p_buf->p_name[i], p_service_names[i], BTA_SERVICE_NAME_LEN);
else
p_buf->p_name[i][0] = 0;
}
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AgDeregister
*
* Description Deregister an audio gateway service.
*
*
* Returns void
*
******************************************************************************/
void BTA_AgDeregister(uint16_t handle) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_AG_API_DEREGISTER_EVT;
p_buf->layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AgOpen
*
* Description Opens a connection to a headset or hands-free device.
* When connection is open callback function is called
* with a BTA_AG_OPEN_EVT. Only the data connection is
* opened. The audio connection is not opened.
*
*
* Returns void
*
******************************************************************************/
void BTA_AgOpen(uint16_t handle, BD_ADDR bd_addr, tBTA_SEC sec_mask,
tBTA_SERVICE_MASK services) {
tBTA_AG_API_OPEN* p_buf =
(tBTA_AG_API_OPEN*)osi_malloc(sizeof(tBTA_AG_API_OPEN));
p_buf->hdr.event = BTA_AG_API_OPEN_EVT;
p_buf->hdr.layer_specific = handle;
bdcpy(p_buf->bd_addr, bd_addr);
p_buf->services = services;
p_buf->sec_mask = sec_mask;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AgClose
*
* Description Close the current connection to a headset or a handsfree
* Any current audio connection will also be closed.
*
*
* Returns void
*
******************************************************************************/
void BTA_AgClose(uint16_t handle) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_AG_API_CLOSE_EVT;
p_buf->layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AgAudioOpen
*
* Description Opens an audio connection to the currently connected
* headset or hnadsfree.
*
*
* Returns void
*
******************************************************************************/
void BTA_AgAudioOpen(uint16_t handle) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_AG_API_AUDIO_OPEN_EVT;
p_buf->layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AgAudioClose
*
* Description Close the currently active audio connection to a headset
* or hnadsfree. The data connection remains open
*
*
* Returns void
*
******************************************************************************/
void BTA_AgAudioClose(uint16_t handle) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_AG_API_AUDIO_CLOSE_EVT;
p_buf->layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AgResult
*
* Description Send an AT result code to a headset or hands-free device.
* This function is only used when the AG parse mode is set
* to BTA_AG_PARSE.
*
*
* Returns void
*
******************************************************************************/
void BTA_AgResult(uint16_t handle, tBTA_AG_RES result,
tBTA_AG_RES_DATA* p_data) {
tBTA_AG_API_RESULT* p_buf =
(tBTA_AG_API_RESULT*)osi_malloc(sizeof(tBTA_AG_API_RESULT));
p_buf->hdr.event = BTA_AG_API_RESULT_EVT;
p_buf->hdr.layer_specific = handle;
p_buf->result = result;
if (p_data) memcpy(&p_buf->data, p_data, sizeof(p_buf->data));
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AgSetCodec
*
* Description Specify the codec type to be used for the subsequent
* audio connection.
*
*
*
* Returns void
*
******************************************************************************/
void BTA_AgSetCodec(uint16_t handle, tBTA_AG_PEER_CODEC codec) {
tBTA_AG_API_SETCODEC* p_buf =
(tBTA_AG_API_SETCODEC*)osi_malloc(sizeof(tBTA_AG_API_SETCODEC));
p_buf->hdr.event = BTA_AG_API_SETCODEC_EVT;
p_buf->hdr.layer_specific = handle;
p_buf->codec = codec;
bta_sys_sendmsg(p_buf);
}