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      1 /******************************************************************************
      2  *
      3  *  Copyright (C) 2009-2012 Broadcom Corporation
      4  *
      5  *  Licensed under the Apache License, Version 2.0 (the "License");
      6  *  you may not use this file except in compliance with the License.
      7  *  You may obtain a copy of the License at:
      8  *
      9  *  http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  ******************************************************************************/
     18 
     19 /*******************************************************************************
     20  *
     21  *  Filename:      btif_av.h
     22  *
     23  *  Description:   Main API header file for all BTIF AV functions accessed
     24  *                 from internal stack.
     25  *
     26  *******************************************************************************/
     27 
     28 #ifndef BTIF_AV_H
     29 #define BTIF_AV_H
     30 
     31 #include "btif_common.h"
     32 #include "btif_sm.h"
     33 #include "bta_av_api.h"
     34 
     35 
     36 /*******************************************************************************
     37 **  Type definitions for callback functions
     38 ********************************************************************************/
     39 
     40 typedef enum {
     41     /* Reuse BTA_AV_XXX_EVT - No need to redefine them here */
     42     BTIF_AV_CONNECT_REQ_EVT = BTA_AV_MAX_EVT,
     43     BTIF_AV_DISCONNECT_REQ_EVT,
     44     BTIF_AV_START_STREAM_REQ_EVT,
     45     BTIF_AV_STOP_STREAM_REQ_EVT,
     46     BTIF_AV_SUSPEND_STREAM_REQ_EVT,
     47     BTIF_AV_SINK_CONFIG_REQ_EVT,
     48 } btif_av_sm_event_t;
     49 
     50 
     51 /*******************************************************************************
     52 **  BTIF AV API
     53 ********************************************************************************/
     54 
     55 /*******************************************************************************
     56 **
     57 ** Function         btif_av_get_sm_handle
     58 **
     59 ** Description      Fetches current av SM handle
     60 **
     61 ** Returns          None
     62 **
     63 *******************************************************************************/
     64 
     65 btif_sm_handle_t btif_av_get_sm_handle(void);
     66 
     67 /*******************************************************************************
     68 **
     69 ** Function         btif_av_stream_ready
     70 **
     71 ** Description      Checks whether AV is ready for starting a stream
     72 **
     73 ** Returns          None
     74 **
     75 *******************************************************************************/
     76 
     77 BOOLEAN btif_av_stream_ready(void);
     78 
     79 /*******************************************************************************
     80 **
     81 ** Function         btif_av_stream_started_ready
     82 **
     83 ** Description      Checks whether AV ready for media start in streaming state
     84 **
     85 ** Returns          None
     86 **
     87 *******************************************************************************/
     88 
     89 BOOLEAN btif_av_stream_started_ready(void);
     90 
     91 /*******************************************************************************
     92 **
     93 ** Function         btif_dispatch_sm_event
     94 **
     95 ** Description      Send event to AV statemachine
     96 **
     97 ** Returns          None
     98 **
     99 *******************************************************************************/
    100 
    101 /* used to pass events to AV statemachine from other tasks */
    102 void btif_dispatch_sm_event(btif_av_sm_event_t event, void *p_data, int len);
    103 
    104 /*******************************************************************************
    105 **
    106 ** Function         btif_av_init
    107 **
    108 ** Description      Initializes btif AV if not already done
    109 **
    110 ** Returns          bt_status_t
    111 **
    112 *******************************************************************************/
    113 
    114 bt_status_t btif_av_init(void);
    115 
    116 /*******************************************************************************
    117 **
    118 ** Function         btif_av_is_connected
    119 **
    120 ** Description      Checks if av has a connected sink
    121 **
    122 ** Returns          BOOLEAN
    123 **
    124 *******************************************************************************/
    125 
    126 BOOLEAN btif_av_is_connected(void);
    127 
    128 
    129 /*******************************************************************************
    130 **
    131 ** Function         btif_av_is_peer_edr
    132 **
    133 ** Description      Check if the connected a2dp device supports
    134 **                  EDR or not. Only when connected this function
    135 **                  will accurately provide a true capability of
    136 **                  remote peer. If not connected it will always be false.
    137 **
    138 ** Returns          TRUE if remote device is capable of EDR
    139 **
    140 *******************************************************************************/
    141 
    142 BOOLEAN btif_av_is_peer_edr(void);
    143 
    144 #endif /* BTIF_AV_H */
    145