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/******************************************************************************
*
* Copyright (C) 2009-2012 Broadcom Corporation
*
* This program is the proprietary software of Broadcom Corporation and/or its
* licensors, and may only be used, duplicated, modified or distributed
* pursuant to the terms and conditions of a separate, written license
* agreement executed between you and Broadcom (an "Authorized License").
* Except as set forth in an Authorized License, Broadcom grants no license
* (express or implied), right to use, or waiver of any kind with respect to
* the Software, and Broadcom expressly reserves all rights in and to the
* Software and all intellectual property rights therein.
* IF YOU HAVE NO AUTHORIZED LICENSE, THEN YOU HAVE NO RIGHT TO USE THIS
* SOFTWARE IN ANY WAY, AND SHOULD IMMEDIATELY NOTIFY BROADCOM AND DISCONTINUE
* ALL USE OF THE SOFTWARE.
*
* Except as expressly set forth in the Authorized License,
*
* 1. This program, including its structure, sequence and organization,
* constitutes the valuable trade secrets of Broadcom, and you shall
* use all reasonable efforts to protect the confidentiality thereof,
* and to use this information only in connection with your use of
* Broadcom integrated circuit products.
*
* 2. TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED
* "AS IS" AND WITH ALL FAULTS AND BROADCOM MAKES NO PROMISES,
* REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY,
* OR OTHERWISE, WITH RESPECT TO THE SOFTWARE. BROADCOM SPECIFICALLY
* DISCLAIMS ANY AND ALL IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY,
* NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF VIRUSES,
* ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. YOU ASSUME THE ENTIRE RISK ARISING
* OUT OF USE OR PERFORMANCE OF THE SOFTWARE.
*
* 3. TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL BROADCOM
* OR ITS LICENSORS BE LIABLE FOR
* (i) CONSEQUENTIAL, INCIDENTAL, SPECIAL, INDIRECT, OR EXEMPLARY
* DAMAGES WHATSOEVER ARISING OUT OF OR IN ANY WAY RELATING TO
* YOUR USE OF OR INABILITY TO USE THE SOFTWARE EVEN IF BROADCOM
* HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES; OR
* (ii) ANY AMOUNT IN EXCESS OF THE AMOUNT ACTUALLY PAID FOR THE
* SOFTWARE ITSELF OR U.S. $1, WHICHEVER IS GREATER. THESE
* LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF
* ESSENTIAL PURPOSE OF ANY LIMITED REMEDY.
*
************************************************************************************/
/*******************************************************************************
*
* Filename: btif_media.h
*
* Description: This is the audio module for the BTIF system.
*
*******************************************************************************/
#ifndef BTIF_MEDIA_H
#define BTIF_MEDIA_H
#include "bta_api.h"
#include "bd.h"
#include "gki.h"
#include "btif_av_api.h"
#include "audio_a2dp_hw.h"
/*******************************************************************************
** Constants
*******************************************************************************/
/* Generic part */
#define BTIF_SUCCESS 0
/**
* AV (Audio Video source) Errors
*/
#define BTIF_ERROR_SRV_AV_NOT_ENABLED 700 /* AV is not enabled */
#define BTIF_ERROR_SRV_AV_FEEDING_NOT_SUPPORTED 701 /* Requested Feeding not supported */
#define BTIF_ERROR_SRV_AV_BUSY 702 /* Another operation ongoing */
#define BTIF_ERROR_SRV_AV_NOT_OPENED 703 /* No AV link opened */
#define BTIF_ERROR_SRV_AV_NOT_STARTED 704 /* AV is not started */
#define BTIF_ERROR_SRV_AV_CP_NOT_SUPPORTED 705 /* Content protection is not supported by all headsets */
/* Transcoding definition for TxTranscoding and RxTranscoding */
#define BTIF_MEDIA_TRSCD_OFF 0
#define BTIF_MEDIA_TRSCD_PCM_2_SBC 1 /* Tx */
/*******************************************************************************
** Data types
*******************************************************************************/
typedef int tBTIF_STATUS;
/* tBTIF_MEDIA_INIT_AUDIO msg structure */
typedef struct
{
BT_HDR hdr;
UINT16 SamplingFreq; /* 16k, 32k, 44.1k or 48k*/
UINT8 ChannelMode; /* mono, dual, stereo or joint stereo*/
UINT8 NumOfSubBands; /* 4 or 8 */
UINT8 NumOfBlocks; /* 4, 8, 12 or 16*/
UINT8 AllocationMethod; /* loudness or SNR*/
UINT16 MtuSize; /* peer mtu size */
} tBTIF_MEDIA_INIT_AUDIO;
#if (BTA_AV_INCLUDED == TRUE)
/* tBTIF_MEDIA_UPDATE_AUDIO msg structure */
typedef struct
{
BT_HDR hdr;
UINT16 MinMtuSize; /* Minimum peer mtu size */
UINT8 MaxBitPool; /* Maximum peer bitpool */
UINT8 MinBitPool; /* Minimum peer bitpool */
} tBTIF_MEDIA_UPDATE_AUDIO;
/* tBTIF_MEDIA_INIT_AUDIO_FEEDING msg structure */
typedef struct
{
BT_HDR hdr;
tBTIF_AV_FEEDING_MODE feeding_mode;
tBTIF_AV_MEDIA_FEEDINGS feeding;
} tBTIF_MEDIA_INIT_AUDIO_FEEDING;
#endif
/*******************************************************************************
** Public functions
*******************************************************************************/
/*******************************************************************************
**
** Function btif_av_task
**
** Description
**
** Returns void
**
*******************************************************************************/
extern int btif_media_task(void *p);
/*******************************************************************************
**
** Function btif_media_task_enc_init_req
**
** Description Request to initialize the media task encoder
**
** Returns TRUE is success
**
*******************************************************************************/
extern BOOLEAN btif_media_task_enc_init_req(tBTIF_MEDIA_INIT_AUDIO * p_msg);
/*******************************************************************************
**
** Function btif_media_task_enc_update_req
**
** Description Request to update the media task encoder
**
** Returns TRUE is success
**
*******************************************************************************/
#if (BTA_AV_INCLUDED == TRUE)
extern BOOLEAN btif_media_task_enc_update_req(tBTIF_MEDIA_UPDATE_AUDIO * p_msg);
#endif
/*******************************************************************************
**
** Function btif_media_task_start_aa_req
**
** Description Request to start audio encoding task
**
** Returns TRUE is success
**
*******************************************************************************/
extern BOOLEAN btif_media_task_start_aa_req(void);
/*******************************************************************************
**
** Function btif_media_task_stop_aa_req
**
** Description Request to stop audio encoding task
**
** Returns TRUE is success
**
*******************************************************************************/
extern BOOLEAN btif_media_task_stop_aa_req(void);
/*******************************************************************************
**
** Function btif_media_task_aa_tx_flush_req
**
** Description Request to flush audio encoding pipe
**
** Returns TRUE is success
**
*******************************************************************************/
extern BOOLEAN btif_media_task_aa_tx_flush_req(void);
/*******************************************************************************
**
** Function btif_media_aa_readbuf
**
** Description Read an audio GKI buffer from the BTIF media TX queue
**
** Returns pointer on a GKI aa buffer ready to send
**
*******************************************************************************/
extern BT_HDR *btif_media_aa_readbuf(void);
/*******************************************************************************
**
** Function btif_media_aa_writebuf
**
** Description Enqueue a Advance Audio media GKI buffer to be processed by btif media task.
**
** Returns TRUE is success
**
*******************************************************************************/
extern void btif_media_aa_writebuf(BT_HDR *pBuf, UINT32 timestamp, UINT16 seq_num);
/*******************************************************************************
**
** Function btif_media_av_writebuf
**
** Description Enqueue a video media GKI buffer to be processed by btif media task.
**
** Returns TRUE is success
**
*******************************************************************************/
extern BOOLEAN btif_media_av_writebuf(UINT8 *p_media, UINT32 media_len,
UINT32 timestamp, UINT16 seq_num);
#if (BTA_AV_INCLUDED == TRUE)
/*******************************************************************************
**
** Function btif_media_task_audio_feeding_init_req
**
** Description Request to initialize audio feeding
**
** Returns TRUE is success
**
*******************************************************************************/
extern BOOLEAN btif_media_task_audio_feeding_init_req(tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_msg);
#endif
/*******************************************************************************
**
** Function dump_codec_info
**
** Description Decode and display codec_info (for debug)
**
** Returns void
**
*******************************************************************************/
extern void dump_codec_info(unsigned char *p_codec);
/**
* Local adaptation helper functions between btif and media task
*/
int btif_a2dp_start_media_task(void);
void btif_a2dp_stop_media_task(void);
void btif_a2dp_on_init(void);
void btif_a2dp_setup_codec(void);
void btif_a2dp_on_idle(void);
void btif_a2dp_on_open(void);
void btif_a2dp_on_started(tBTA_AV_START *p_av);
void btif_a2dp_on_stop_req(void);
void btif_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av);
void btif_a2dp_on_suspend(void);
void btif_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av);
void btif_a2dp_set_tx_flush(BOOLEAN enable);
#endif
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