1 /****************************************************************************** 2 * 3 * Copyright (C) 2003-2012 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 * This is the interface file for audio gateway call-out functions. 22 * 23 ******************************************************************************/ 24 #ifndef BTA_AG_CO_H 25 #define BTA_AG_CO_H 26 27 #include "bta_ag_api.h" 28 29 /* Definitions for audio state callout function "state" parameter */ 30 #define BTA_AG_CO_AUD_STATE_OFF 0 31 #define BTA_AG_CO_AUD_STATE_OFF_XFER 1 /* Closed pending transfer of audio */ 32 #define BTA_AG_CO_AUD_STATE_ON 2 33 #define BTA_AG_CO_AUD_STATE_SETUP 3 34 35 /******************************************************************************* 36 ** 37 ** Function bta_ag_co_init 38 ** 39 ** Description This callout function is executed by AG when it is 40 ** started by calling BTA_AgEnable(). This function can be 41 ** used by the phone to initialize audio paths or for other 42 ** initialization purposes. 43 ** 44 ** 45 ** Returns Void. 46 ** 47 *******************************************************************************/ 48 BTA_API extern void bta_ag_co_init(void); 49 50 /******************************************************************************* 51 ** 52 ** Function bta_ag_co_audio_state 53 ** 54 ** Description This function is called by the AG before the audio connection 55 ** is brought up, after it comes up, and after it goes down. 56 ** 57 ** Parameters handle - handle of the AG instance 58 ** state - Audio state 59 ** BTA_AG_CO_AUD_STATE_OFF - Audio has been turned off 60 ** BTA_AG_CO_AUD_STATE_OFF_XFER - Audio is closed pending transfer 61 ** BTA_AG_CO_AUD_STATE_ON - Audio has been turned on 62 ** BTA_AG_CO_AUD_STATE_SETUP - Audio is about to be turned on 63 ** 64 ** Returns void 65 ** 66 *******************************************************************************/ 67 BTA_API extern void bta_ag_co_audio_state(UINT16 handle, UINT8 app_id, UINT8 state); 68 69 /******************************************************************************* 70 ** 71 ** Function bta_ag_co_data_open 72 ** 73 ** Description This function is executed by AG when a service level connection 74 ** is opened. The phone can use this function to set 75 ** up data paths or perform any required initialization or 76 ** set up particular to the connected service. 77 ** 78 ** 79 ** Returns void 80 ** 81 *******************************************************************************/ 82 BTA_API extern void bta_ag_co_data_open(UINT16 handle, tBTA_SERVICE_ID service); 83 84 /******************************************************************************* 85 ** 86 ** Function bta_ag_co_data_close 87 ** 88 ** Description This function is called by AG when a service level 89 ** connection is closed 90 ** 91 ** 92 ** Returns void 93 ** 94 *******************************************************************************/ 95 BTA_API extern void bta_ag_co_data_close(UINT16 handle); 96 97 /******************************************************************************* 98 ** 99 ** Function bta_ag_co_tx_write 100 ** 101 ** Description This function is called by the AG to send data to the 102 ** phone when the AG is configured for AT command pass-through. 103 ** The implementation of this function must copy the data to 104 ** the phones memory. 105 ** 106 ** Returns void 107 ** 108 *******************************************************************************/ 109 BTA_API extern void bta_ag_co_tx_write(UINT16 handle, UINT8 *p_data, UINT16 len); 110 111 #endif /* BTA_AG_CO_H */ 112 113
