1 /* 2 * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 /******************************************************************************* 8 * 9 * Filename: btc_a2dp.h 10 * 11 * Description: Common definitions for A2DP 12 * 13 *******************************************************************************/ 14 15 #ifndef __BTC_A2DP_H__ 16 #define __BTC_A2DP_H__ 17 18 #include <stdbool.h> 19 #include "common/bt_target.h" 20 #include "bta/bta_api.h" 21 #include "btc_av_api.h" 22 #include "esp_a2dp_api.h" 23 24 #if BTC_AV_INCLUDED 25 26 /******************************************************************************* 27 ** Constants 28 *******************************************************************************/ 29 #define BTC_AV_SUCCESS (0) 30 /** 31 * AV (Audio Video source) Errors 32 */ 33 #define BTC_ERROR_SRV_AV_NOT_ENABLED 700 /* AV is not enabled */ 34 #define BTC_ERROR_SRV_AV_FEEDING_NOT_SUPPORTED 701 /* Requested Feeding not supported */ 35 #define BTC_ERROR_SRV_AV_BUSY 702 /* Another operation ongoing */ 36 #define BTC_ERROR_SRV_AV_NOT_OPENED 703 /* No AV link opened */ 37 #define BTC_ERROR_SRV_AV_NOT_STARTED 704 /* AV is not started */ 38 #define BTC_ERROR_SRV_AV_CP_NOT_SUPPORTED 705 /* Content protection is not supported by all headsets */ 39 40 /* Transcoding definition for TxTranscoding and RxTranscoding */ 41 #define BTC_MEDIA_TRSCD_OFF 0 42 #define BTC_MEDIA_TRSCD_PCM_2_SBC 1 /* Tx */ 43 44 45 /******************************************************************************* 46 ** Data types 47 *******************************************************************************/ 48 typedef int tBTC_AV_STATUS; 49 50 /******************************************************************************* 51 ** Public functions 52 *******************************************************************************/ 53 54 void btc_a2dp_on_init(void); 55 56 /******************************************************************************* 57 ** 58 ** Function btc_a2dp_on_idle 59 ** 60 ** Description Process 'idle' request from BTC AV state machine during 61 ** initialization 62 ** 63 *******************************************************************************/ 64 void btc_a2dp_on_idle(void); 65 66 /******************************************************************************* 67 ** 68 ** Function btc_a2dp_on_started 69 ** 70 ** Description Process 'start' request from BTC AV state machine to prepare 71 ** for A2DP streaming 72 ** 73 ** Return TRUE if an ACK for the local command is sent 74 ** 75 *******************************************************************************/ 76 BOOLEAN btc_a2dp_on_started(tBTA_AV_START *p_av, BOOLEAN pending_start); 77 78 /******************************************************************************* 79 ** 80 ** Function btc_a2dp_on_stopped 81 ** 82 ** Description Process 'stop' request from BTC AV state machine to stop 83 ** A2DP streaming 84 ** 85 *******************************************************************************/ 86 void btc_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av); 87 88 /******************************************************************************* 89 ** 90 ** Function btc_a2dp_on_suspended 91 ** 92 ** Description Process 'stop' request from BTC AV state machine to suspend 93 ** A2DP streaming 94 ** 95 *******************************************************************************/ 96 void btc_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av); 97 98 #endif /* #if BTC_AV_INCLUDED */ 99 100 #endif /* __BTC_A2DP_H__ */ 101
