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 implementation of the API for the audio gateway (AG) 22 * subsystem of BTA, Broadcom's Bluetooth application layer for mobile 23 * phones. 24 * 25 ******************************************************************************/ 26 27#include "bta_api.h" 28#include "bta_sys.h" 29#include "bta_ag_api.h" 30#include "bta_ag_int.h" 31#include "gki.h" 32#include <string.h> 33 34/***************************************************************************** 35** Constants 36*****************************************************************************/ 37 38static const tBTA_SYS_REG bta_ag_reg = 39{ 40 bta_ag_hdl_event, 41 BTA_AgDisable 42}; 43 44/******************************************************************************* 45** 46** Function BTA_AgEnable 47** 48** Description Enable the audio gateway service. When the enable 49** operation is complete the callback function will be 50** called with a BTA_AG_ENABLE_EVT. This function must 51** be called before other function in the AG API are 52** called. 53** 54** Returns BTA_SUCCESS if OK, BTA_FAILURE otherwise. 55** 56*******************************************************************************/ 57tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode, tBTA_AG_CBACK *p_cback) 58{ 59 tBTA_AG_API_ENABLE *p_buf; 60 UINT8 idx; 61 62 /* Error if AG is already enabled, or AG is in the middle of disabling. */ 63 for (idx = 0; idx < BTA_AG_NUM_SCB; idx++) 64 { 65 if (bta_ag_cb.scb[idx].in_use) 66 { 67 APPL_TRACE_ERROR ("BTA_AgEnable: FAILED, AG already enabled."); 68 return BTA_FAILURE; 69 } 70 } 71 72 /* register with BTA system manager */ 73 bta_sys_register(BTA_ID_AG, &bta_ag_reg); 74 75 if ((p_buf = (tBTA_AG_API_ENABLE *) GKI_getbuf(sizeof(tBTA_AG_API_ENABLE))) != NULL) 76 { 77 p_buf->hdr.event = BTA_AG_API_ENABLE_EVT; 78 p_buf->parse_mode = parse_mode; 79 p_buf->p_cback = p_cback; 80 bta_sys_sendmsg(p_buf); 81 } 82 83 return BTA_SUCCESS; 84 85} 86 87/******************************************************************************* 88** 89** Function BTA_AgDisable 90** 91** Description Disable the audio gateway service 92** 93** 94** Returns void 95** 96*******************************************************************************/ 97void BTA_AgDisable(void) 98{ 99 BT_HDR *p_buf; 100 101 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 102 { 103 p_buf->event = BTA_AG_API_DISABLE_EVT; 104 bta_sys_sendmsg(p_buf); 105 } 106} 107 108/******************************************************************************* 109** 110** Function BTA_AgRegister 111** 112** Description Register an Audio Gateway service. 113** 114** 115** Returns void 116** 117*******************************************************************************/ 118void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask,tBTA_AG_FEAT features, 119 char * p_service_names[], UINT8 app_id) 120{ 121 tBTA_AG_API_REGISTER *p_buf; 122 int i; 123 124 if ((p_buf = (tBTA_AG_API_REGISTER *) GKI_getbuf(sizeof(tBTA_AG_API_REGISTER))) != NULL) 125 { 126 p_buf->hdr.event = BTA_AG_API_REGISTER_EVT; 127 p_buf->features = features; 128 p_buf->sec_mask = sec_mask; 129 p_buf->services = services; 130 p_buf->app_id = app_id; 131 for (i = 0; i < BTA_AG_NUM_IDX; i++) 132 { 133 if(p_service_names[i]) 134 { 135 BCM_STRNCPY_S(p_buf->p_name[i], BTA_SERVICE_NAME_LEN+1, p_service_names[i], BTA_SERVICE_NAME_LEN); 136 p_buf->p_name[i][BTA_SERVICE_NAME_LEN] = 0; 137 } 138 else 139 { 140 p_buf->p_name[i][0] = 0; 141 } 142 } 143 bta_sys_sendmsg(p_buf); 144 } 145} 146 147/******************************************************************************* 148** 149** Function BTA_AgDeregister 150** 151** Description Deregister an audio gateway service. 152** 153** 154** Returns void 155** 156*******************************************************************************/ 157void BTA_AgDeregister(UINT16 handle) 158{ 159 BT_HDR *p_buf; 160 161 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 162 { 163 p_buf->event = BTA_AG_API_DEREGISTER_EVT; 164 p_buf->layer_specific = handle; 165 bta_sys_sendmsg(p_buf); 166 } 167} 168 169/******************************************************************************* 170** 171** Function BTA_AgOpen 172** 173** Description Opens a connection to a headset or hands-free device. 174** When connection is open callback function is called 175** with a BTA_AG_OPEN_EVT. Only the data connection is 176** opened. The audio connection is not opened. 177** 178** 179** Returns void 180** 181*******************************************************************************/ 182void BTA_AgOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, tBTA_SERVICE_MASK services) 183{ 184 tBTA_AG_API_OPEN *p_buf; 185 186 if ((p_buf = (tBTA_AG_API_OPEN *) GKI_getbuf(sizeof(tBTA_AG_API_OPEN))) != NULL) 187 { 188 p_buf->hdr.event = BTA_AG_API_OPEN_EVT; 189 p_buf->hdr.layer_specific = handle; 190 bdcpy(p_buf->bd_addr, bd_addr); 191 p_buf->services = services; 192 p_buf->sec_mask = sec_mask; 193 bta_sys_sendmsg(p_buf); 194 } 195} 196 197/******************************************************************************* 198** 199** Function BTA_AgClose 200** 201** Description Close the current connection to a headset or a handsfree 202** Any current audio connection will also be closed. 203** 204** 205** Returns void 206** 207*******************************************************************************/ 208void BTA_AgClose(UINT16 handle) 209{ 210 BT_HDR *p_buf; 211 212 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 213 { 214 p_buf->event = BTA_AG_API_CLOSE_EVT; 215 p_buf->layer_specific = handle; 216 bta_sys_sendmsg(p_buf); 217 } 218} 219 220/******************************************************************************* 221** 222** Function BTA_AgAudioOpen 223** 224** Description Opens an audio connection to the currently connected 225** headset or hnadsfree. 226** 227** 228** Returns void 229** 230*******************************************************************************/ 231void BTA_AgAudioOpen(UINT16 handle) 232{ 233 BT_HDR *p_buf; 234 235 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 236 { 237 p_buf->event = BTA_AG_API_AUDIO_OPEN_EVT; 238 p_buf->layer_specific = handle; 239 bta_sys_sendmsg(p_buf); 240 } 241} 242 243/******************************************************************************* 244** 245** Function BTA_AgAudioClose 246** 247** Description Close the currently active audio connection to a headset 248** or hnadsfree. The data connection remains open 249** 250** 251** Returns void 252** 253*******************************************************************************/ 254void BTA_AgAudioClose(UINT16 handle) 255{ 256 BT_HDR *p_buf; 257 258 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 259 { 260 p_buf->event = BTA_AG_API_AUDIO_CLOSE_EVT; 261 p_buf->layer_specific = handle; 262 bta_sys_sendmsg(p_buf); 263 } 264} 265 266 267/******************************************************************************* 268** 269** Function BTA_AgResult 270** 271** Description Send an AT result code to a headset or hands-free device. 272** This function is only used when the AG parse mode is set 273** to BTA_AG_PARSE. 274** 275** 276** Returns void 277** 278*******************************************************************************/ 279void BTA_AgResult(UINT16 handle, tBTA_AG_RES result, tBTA_AG_RES_DATA *p_data) 280{ 281 tBTA_AG_API_RESULT *p_buf; 282 283 if ((p_buf = (tBTA_AG_API_RESULT *) GKI_getbuf(sizeof(tBTA_AG_API_RESULT))) != NULL) 284 { 285 p_buf->hdr.event = BTA_AG_API_RESULT_EVT; 286 p_buf->hdr.layer_specific = handle; 287 p_buf->result = result; 288 if(p_data) 289 { 290 memcpy(&p_buf->data, p_data, sizeof(p_buf->data)); 291 } 292 bta_sys_sendmsg(p_buf); 293 } 294} 295 296/******************************************************************************* 297** 298** Function BTA_AgSetCodec 299** 300** Description Specify the codec type to be used for the subsequent 301** audio connection. 302** 303** 304** 305** Returns void 306** 307*******************************************************************************/ 308void BTA_AgSetCodec(UINT16 handle, tBTA_AG_PEER_CODEC codec) 309{ 310 tBTA_AG_API_SETCODEC *p_buf; 311 312 if ((p_buf = (tBTA_AG_API_SETCODEC *) GKI_getbuf(sizeof(tBTA_AG_API_SETCODEC))) != NULL) 313 { 314 p_buf->hdr.event = BTA_AG_API_SETCODEC_EVT; 315 p_buf->hdr.layer_specific = handle; 316 p_buf->codec = codec; 317 bta_sys_sendmsg(p_buf); 318 } 319} 320 321