OVMS3-idf/components/bt/host/bluedroid/btc/profile/std/a2dp/include/btc_av_co.h
2019-06-30 16:39:00 +08:00

228 lines
8.8 KiB
C

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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.
#ifndef __BTC_AV_CO_H__
#define __BTC_AV_CO_H__
#include "btc_a2dp.h"
#include "bta/bta_av_co.h"
#if (BTA_AV_INCLUDED == TRUE)
/*******************************************************************************
** Constants & Macros
********************************************************************************/
enum {
BTC_SV_AV_AA_SBC_INDEX = 0,
BTC_SV_AV_AA_SBC_SINK_INDEX,
BTC_SV_AV_AA_SEP_INDEX /* Last index */
};
/*****************************************************************************
** Local data
*****************************************************************************/
typedef struct {
UINT8 sep_info_idx; /* local SEP index (in BTA tables) */
UINT8 seid; /* peer SEP index (in peer tables) */
UINT8 codec_type; /* peer SEP codec type */
UINT8 codec_caps[AVDT_CODEC_SIZE]; /* peer SEP codec capabilities */
UINT8 num_protect; /* peer SEP number of CP elements */
UINT8 protect_info[BTA_AV_CP_INFO_LEN]; /* peer SEP content protection info */
} tBTA_AV_CO_SINK;
typedef struct {
BD_ADDR addr; /* address of audio/video peer */
tBTA_AV_CO_SINK snks[BTC_SV_AV_AA_SEP_INDEX]; /* array of supported sinks */
tBTA_AV_CO_SINK srcs[BTC_SV_AV_AA_SEP_INDEX]; /* array of supported srcs */
UINT8 num_snks; /* total number of sinks at peer */
UINT8 num_srcs; /* total number of srcs at peer */
UINT8 num_seps; /* total number of seids at peer */
UINT8 num_rx_snks; /* number of received sinks */
UINT8 num_rx_srcs; /* number of received srcs */
UINT8 num_sup_snks; /* number of supported sinks in the snks array */
UINT8 num_sup_srcs; /* number of supported srcs in the srcs array */
tBTA_AV_CO_SINK *p_snk; /* currently selected sink */
tBTA_AV_CO_SINK *p_src; /* currently selected src */
UINT8 codec_cfg[AVDT_CODEC_SIZE]; /* current codec configuration */
BOOLEAN cp_active; /* current CP configuration */
BOOLEAN acp; /* acceptor */
BOOLEAN recfg_needed; /* reconfiguration is needed */
BOOLEAN opened; /* opened */
UINT16 mtu; /* maximum transmit unit size */
UINT16 uuid_to_connect; /* uuid of peer device */
} tBTA_AV_CO_PEER;
typedef struct {
BOOLEAN active;
UINT8 flag;
} tBTA_AV_CO_CP;
typedef struct {
/* Connected peer information */
tBTA_AV_CO_PEER peers[BTA_AV_NUM_STRS];
/* Current codec configuration - access to this variable must be protected */
tBTC_AV_CODEC_INFO codec_cfg;
tBTC_AV_CODEC_INFO codec_cfg_setconfig; /* remote peer setconfig preference */
tBTA_AV_CO_CP cp;
} tBTA_AV_CO_CB;
/* Control block instance */
#if AVRC_DYNAMIC_MEMORY == FALSE
extern tBTA_AV_CO_CB bta_av_co_cb;
#else
extern tBTA_AV_CO_CB *bta_av_co_cb_ptr;
#define bta_av_co_cb (*bta_av_co_cb_ptr)
#endif
/*******************************************************************************
** Functions
********************************************************************************/
/*******************************************************************************
**
** Function bta_av_co_cp_is_active
**
** Description Get the current configuration of content protection
**
** Returns TRUE if the current streaming has CP, FALSE otherwise
**
*******************************************************************************/
BOOLEAN bta_av_co_cp_is_active(void);
/*******************************************************************************
**
** Function bta_av_co_cp_get_flag
**
** Description Get content protection flag
** BTA_AV_CP_SCMS_COPY_NEVER
** BTA_AV_CP_SCMS_COPY_ONCE
** BTA_AV_CP_SCMS_COPY_FREE
**
** Returns The current flag value
**
*******************************************************************************/
UINT8 bta_av_co_cp_get_flag(void);
/*******************************************************************************
**
** Function bta_av_co_cp_set_flag
**
** Description Set content protection flag
** BTA_AV_CP_SCMS_COPY_NEVER
** BTA_AV_CP_SCMS_COPY_ONCE
** BTA_AV_CP_SCMS_COPY_FREE
**
** Returns TRUE if setting the SCMS flag is supported else FALSE
**
*******************************************************************************/
BOOLEAN bta_av_co_cp_set_flag(UINT8 cp_flag);
/*******************************************************************************
**
** Function bta_av_co_audio_codec_reset
**
** Description Reset the current codec configuration
**
** Returns void
**
*******************************************************************************/
void bta_av_co_audio_codec_reset(void);
/*******************************************************************************
**
** Function bta_av_co_audio_codec_supported
**
** Description Check if all opened connections are compatible with a codec
** configuration
**
** Returns TRUE if all opened devices support this codec, FALSE otherwise
**
*******************************************************************************/
BOOLEAN bta_av_co_audio_codec_supported(tBTC_AV_STATUS *p_status);
/*******************************************************************************
**
** Function bta_av_co_audio_set_codec
**
** Description Set the current codec configuration from the feeding type.
** This function is starting to modify the configuration, it
** should be protected.
**
** Returns TRUE if successful, FALSE otherwise
**
*******************************************************************************/
BOOLEAN bta_av_co_audio_set_codec(const tBTC_AV_MEDIA_FEEDINGS *p_feeding, tBTC_AV_STATUS *p_status);
/*******************************************************************************
**
** Function bta_av_co_audio_get_sbc_config
**
** Description Retrieves the SBC codec configuration. If the codec in use
** is not SBC, return the default SBC codec configuration.
**
** Returns TRUE if codec is SBC, FALSE otherwise
**
*******************************************************************************/
BOOLEAN bta_av_co_audio_get_sbc_config(tA2D_SBC_CIE *p_sbc_config, UINT16 *p_minmtu);
/*******************************************************************************
**
** Function bta_av_co_audio_discard_config
**
** Description Discard the codec configuration of a connection
**
** Returns Nothing
**
*******************************************************************************/
void bta_av_co_audio_discard_config(tBTA_AV_HNDL hndl);
/*******************************************************************************
**
** Function bta_av_co_init
**
** Description Initialization
**
** Returns Nothing
**
*******************************************************************************/
void bta_av_co_init(void);
/*******************************************************************************
**
** Function bta_av_co_peer_cp_supported
**
** Description Checks if the peer supports CP
**
** Returns TRUE if the peer supports CP
**
*******************************************************************************/
BOOLEAN bta_av_co_peer_cp_supported(tBTA_AV_HNDL hndl);
/*******************************************************************************
**
** Function bta_av_co_get_remote_bitpool_pref
**
** Description Check if remote side did a setconfig within the limits
** of our exported bitpool range. If set we will set the
** remote preference.
**
** Returns TRUE if config set, FALSE otherwize
**
*******************************************************************************/
BOOLEAN bta_av_co_get_remote_bitpool_pref(UINT8 *min, UINT8 *max);
#endif ///BTA_AV_INCLUDED == TRUE
#endif