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components/bt/host/bluedroid/btc/profile/std/include/btc_av.h
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/*
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/*******************************************************************************
*
* Filename: btc_av.h
*
* Description: Main API header file for all BTC AV functions accessed
* from internal stack.
*
*******************************************************************************/
#ifndef __BTC_AV_H__
#define __BTC_AV_H__
#include "common/bt_target.h"
#include "esp_a2dp_api.h"
#include "btc/btc_task.h"
#include "btc/btc_common.h"
#include "btc/btc_sm.h"
#include "bta/bta_av_api.h"
#if (BTC_AV_INCLUDED == TRUE)
// global variable to inidcate avrc is initialized with a2dp
extern bool g_av_with_rc;
// global variable to indicate a2dp is initialized
extern bool g_a2dp_on_init;
// global variable to indicate a2dp is deinitialized
extern bool g_a2dp_on_deinit;
// global variable to indicate a2dp source deinitialization is ongoing
extern bool g_a2dp_source_ongoing_deinit;
// global variable to indicate a2dp sink deinitialization is ongoing
extern bool g_a2dp_sink_ongoing_deinit;
/*******************************************************************************
** Type definitions for callback functions
********************************************************************************/
enum {
BTC_AV_DATAPATH_OPEN_EVT, // original UIPC_OPEN_EVT for data channel in bluedroid
BTC_AV_DATAPATH_MAX_EVT,
};
typedef enum {
BTC_AV_CONNECT_REQ_EVT = BTA_AV_MAX_EVT,
BTC_AV_DISCONNECT_REQ_EVT,
BTC_AV_START_STREAM_REQ_EVT,
BTC_AV_SUSPEND_STREAM_REQ_EVT,
BTC_AV_SINK_CONFIG_REQ_EVT,
} btc_av_sm_event_t;
typedef enum {
#if BTC_AV_SINK_INCLUDED
BTC_AV_SINK_API_INIT_EVT = 0,
BTC_AV_SINK_API_DEINIT_EVT,
BTC_AV_SINK_API_CONNECT_EVT,
BTC_AV_SINK_API_DISCONNECT_EVT,
BTC_AV_SINK_API_REG_DATA_CB_EVT,
BTC_AV_SINK_API_SET_DELAY_VALUE_EVT,
BTC_AV_SINK_API_GET_DELAY_VALUE_EVT,
#endif /* BTC_AV_SINK_INCLUDED */
#if BTC_AV_SRC_INCLUDED
BTC_AV_SRC_API_INIT_EVT,
BTC_AV_SRC_API_DEINIT_EVT,
BTC_AV_SRC_API_CONNECT_EVT,
BTC_AV_SRC_API_DISCONNECT_EVT,
BTC_AV_SRC_API_REG_DATA_CB_EVT,
#endif /* BTC_AV_SRC_INCLUDED */
BTC_AV_API_MEDIA_CTRL_EVT,
} btc_av_act_t;
/* btc_av_args_t */
typedef union {
#if BTC_AV_SINK_INCLUDED
// BTC_AV_SINK_CONFIG_REQ_EVT -- internal event
esp_a2d_mcc_t mcc;
// BTC_AV_SINK_API_CONNECT_EVT
bt_bdaddr_t connect;
// BTC_AV_SINK_API_DISCONNECT_EVT
bt_bdaddr_t disconn;
// BTC_AV_SINK_API_REG_DATA_CB_EVT
esp_a2d_sink_data_cb_t data_cb;
// BTC_AV_SINK_API_SET_DELAY_VALUE_EVT
uint16_t delay_value;
#endif /* BTC_AV_SINK_INCLUDED */
#if BTC_AV_SRC_INCLUDED
// BTC_AV_SRC_API_REG_DATA_CB_EVT
esp_a2d_source_data_cb_t src_data_cb;
// BTC_AV_SRC_API_CONNECT
bt_bdaddr_t src_connect;
// BTC_AV_SRC_API_DISCONNECT_EVT
bt_bdaddr_t src_disconn;
#endif /* BTC_AV_SRC_INCLUDED */
// BTC_AV_API_MEDIA_CTRL_EVT
esp_a2d_media_ctrl_t ctrl;
} btc_av_args_t;
/*******************************************************************************
** BTC AV API
********************************************************************************/
void btc_a2dp_call_handler(btc_msg_t *msg);
void btc_a2dp_cb_handler(btc_msg_t *msg);
void btc_a2dp_sink_reg_data_cb(esp_a2d_sink_data_cb_t callback);
void btc_a2dp_src_reg_data_cb(esp_a2d_source_data_cb_t callback);
/*******************************************************************************
**
** Function btc_av_get_sm_handle
**
** Description Fetches current av SM handle
**
** Returns None
**
*******************************************************************************/
btc_sm_handle_t btc_av_get_sm_handle(void);
/*******************************************************************************
**
** Function btc_av_stream_ready
**
** Description Checks whether AV is ready for starting a stream
**
** Returns None
**
*******************************************************************************/
BOOLEAN btc_av_stream_ready(void);
/*******************************************************************************
**
** Function btc_av_stream_started_ready
**
** Description Checks whether AV ready for media start in streaming state
**
** Returns None
**
*******************************************************************************/
BOOLEAN btc_av_stream_started_ready(void);
/*******************************************************************************
**
** Function btc_dispatch_sm_event
**
** Description Send event to AV statemachine
**
** Returns None
**
*******************************************************************************/
/* used to pass events to AV statemachine from other tasks */
void btc_dispatch_sm_event(btc_av_sm_event_t event, void *p_data, int len);
/*******************************************************************************
**
** Function btc_av_is_connected
**
** Description Checks if av has a connected sink
**
** Returns BOOLEAN
**
*******************************************************************************/
BOOLEAN btc_av_is_connected(void);
/*******************************************************************************
*
* Function btc_av_get_peer_sep
*
* Description Get the stream endpoint type.
*
* Returns The stream endpoint type: either AVDT_TSEP_SRC or
* AVDT_TSEP_SNK.
*
******************************************************************************/
uint8_t btc_av_get_peer_sep(void);
/*******************************************************************************
**
** Function btc_av_is_peer_edr
**
** Description Check if the connected a2dp device supports
** EDR or not. Only when connected this function
** will accurately provide a true capability of
** remote peer. If not connected it will always be false.
**
** Returns TRUE if remote device is capable of EDR
**
*******************************************************************************/
BOOLEAN btc_av_is_peer_edr(void);
/******************************************************************************
**
** Function btc_av_clear_remote_suspend_flag
**
** Description Clears remote suspended flag
**
** Returns Void
********************************************************************************/
void btc_av_clear_remote_suspend_flag(void);
/*******************************************************************************
*
* Function btc_av_get_service_id
*
* Description Get the current AV service ID.
*
* Returns The stream endpoint type: either BTA_A2DP_SOURCE_SERVICE_ID or
* BTA_A2DP_SINK_SERVICE_ID.
*
******************************************************************************/
uint8_t btc_av_get_service_id(void);
#endif ///BTC_AV_INCLUDED == TRUE
#endif /* __BTC_AV_H__ */
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