/******************************************************************************
*
* 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_api.h"
#include "bd.h"
#include "bta_sys.h"
#include "bta_ag_api.h"
#include "bta_ag_int.h"
#include "gki.h"
#include <string.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)
{
tBTA_AG_API_ENABLE *p_buf;
UINT8 idx;
/* Error if AG is already enabled, or AG is in the middle of disabling. */
for (idx = 0; idx < BTA_AG_NUM_SCB; idx++)
{
if (bta_ag_cb.scb[idx].in_use)
{
APPL_TRACE_ERROR0 ("BTA_AgEnable: FAILED, AG already enabled.");
return BTA_FAILURE;
}
}
/* register with BTA system manager */
GKI_sched_lock();
bta_sys_register(BTA_ID_AG, &bta_ag_reg);
GKI_sched_unlock();
if ((p_buf = (tBTA_AG_API_ENABLE *) GKI_getbuf(sizeof(tBTA_AG_API_ENABLE))) != NULL)
{
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;
if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
{
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,
char * p_service_names[], UINT8 app_id)
{
tBTA_AG_API_REGISTER *p_buf;
int i;
if ((p_buf = (tBTA_AG_API_REGISTER *) GKI_getbuf(sizeof(tBTA_AG_API_REGISTER))) != NULL)
{
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 (i = 0; i < BTA_AG_NUM_IDX; i++)
{
if(p_service_names[i])
{
BCM_STRNCPY_S(p_buf->p_name[i], BTA_SERVICE_NAME_LEN+1, p_service_names[i], BTA_SERVICE_NAME_LEN);
p_buf->p_name[i][BTA_SERVICE_NAME_LEN] = 0;
}
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 handle)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
{
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 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, tBTA_SERVICE_MASK services)
{
tBTA_AG_API_OPEN *p_buf;
if ((p_buf = (tBTA_AG_API_OPEN *) GKI_getbuf(sizeof(tBTA_AG_API_OPEN))) != NULL)
{
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 handle)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
{
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 handle)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
{
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 handle)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
{
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 handle, tBTA_AG_RES result, tBTA_AG_RES_DATA *p_data)
{
tBTA_AG_API_RESULT *p_buf;
if ((p_buf = (tBTA_AG_API_RESULT *) GKI_getbuf(sizeof(tBTA_AG_API_RESULT))) != NULL)
{
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 handle, tBTA_AG_PEER_CODEC codec)
{
tBTA_AG_API_SETCODEC *p_buf;
if ((p_buf = (tBTA_AG_API_SETCODEC *) GKI_getbuf(sizeof(tBTA_AG_API_SETCODEC))) != NULL)
{
p_buf->hdr.event = BTA_AG_API_SETCODEC_EVT;
p_buf->hdr.layer_specific = handle;
p_buf->codec = codec;
bta_sys_sendmsg(p_buf);
}
}