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 "bd.h" 29#include "bta_sys.h" 30#include "bta_ag_api.h" 31#include "bta_ag_int.h" 32#include "gki.h" 33#include <string.h> 34 35/***************************************************************************** 36** Constants 37*****************************************************************************/ 38 39static const tBTA_SYS_REG bta_ag_reg = 40{ 41 bta_ag_hdl_event, 42 BTA_AgDisable 43}; 44 45/******************************************************************************* 46** 47** Function BTA_AgEnable 48** 49** Description Enable the audio gateway service. When the enable 50** operation is complete the callback function will be 51** called with a BTA_AG_ENABLE_EVT. This function must 52** be called before other function in the AG API are 53** called. 54** 55** Returns BTA_SUCCESS if OK, BTA_FAILURE otherwise. 56** 57*******************************************************************************/ 58tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode, tBTA_AG_CBACK *p_cback) 59{ 60 tBTA_AG_API_ENABLE *p_buf; 61 UINT8 idx; 62 63 /* Error if AG is already enabled, or AG is in the middle of disabling. */ 64 for (idx = 0; idx < BTA_AG_NUM_SCB; idx++) 65 { 66 if (bta_ag_cb.scb[idx].in_use) 67 { 68 APPL_TRACE_ERROR0 ("BTA_AgEnable: FAILED, AG already enabled."); 69 return BTA_FAILURE; 70 } 71 } 72 73 /* register with BTA system manager */ 74 GKI_sched_lock(); 75 bta_sys_register(BTA_ID_AG, &bta_ag_reg); 76 GKI_sched_unlock(); 77 78 if ((p_buf = (tBTA_AG_API_ENABLE *) GKI_getbuf(sizeof(tBTA_AG_API_ENABLE))) != NULL) 79 { 80 p_buf->hdr.event = BTA_AG_API_ENABLE_EVT; 81 p_buf->parse_mode = parse_mode; 82 p_buf->p_cback = p_cback; 83 bta_sys_sendmsg(p_buf); 84 } 85 86 return BTA_SUCCESS; 87 88} 89 90/******************************************************************************* 91** 92** Function BTA_AgDisable 93** 94** Description Disable the audio gateway service 95** 96** 97** Returns void 98** 99*******************************************************************************/ 100void BTA_AgDisable(void) 101{ 102 BT_HDR *p_buf; 103 104 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 105 { 106 p_buf->event = BTA_AG_API_DISABLE_EVT; 107 bta_sys_sendmsg(p_buf); 108 } 109} 110 111/******************************************************************************* 112** 113** Function BTA_AgRegister 114** 115** Description Register an Audio Gateway service. 116** 117** 118** Returns void 119** 120*******************************************************************************/ 121void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask,tBTA_AG_FEAT features, 122 char * p_service_names[], UINT8 app_id) 123{ 124 tBTA_AG_API_REGISTER *p_buf; 125 int i; 126 127 if ((p_buf = (tBTA_AG_API_REGISTER *) GKI_getbuf(sizeof(tBTA_AG_API_REGISTER))) != NULL) 128 { 129 p_buf->hdr.event = BTA_AG_API_REGISTER_EVT; 130 p_buf->features = features; 131 p_buf->sec_mask = sec_mask; 132 p_buf->services = services; 133 p_buf->app_id = app_id; 134 for (i = 0; i < BTA_AG_NUM_IDX; i++) 135 { 136 if(p_service_names[i]) 137 { 138 BCM_STRNCPY_S(p_buf->p_name[i], BTA_SERVICE_NAME_LEN+1, p_service_names[i], BTA_SERVICE_NAME_LEN); 139 p_buf->p_name[i][BTA_SERVICE_NAME_LEN] = 0; 140 } 141 else 142 { 143 p_buf->p_name[i][0] = 0; 144 } 145 } 146 bta_sys_sendmsg(p_buf); 147 } 148} 149 150/******************************************************************************* 151** 152** Function BTA_AgDeregister 153** 154** Description Deregister an audio gateway service. 155** 156** 157** Returns void 158** 159*******************************************************************************/ 160void BTA_AgDeregister(UINT16 handle) 161{ 162 BT_HDR *p_buf; 163 164 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 165 { 166 p_buf->event = BTA_AG_API_DEREGISTER_EVT; 167 p_buf->layer_specific = handle; 168 bta_sys_sendmsg(p_buf); 169 } 170} 171 172/******************************************************************************* 173** 174** Function BTA_AgOpen 175** 176** Description Opens a connection to a headset or hands-free device. 177** When connection is open callback function is called 178** with a BTA_AG_OPEN_EVT. Only the data connection is 179** opened. The audio connection is not opened. 180** 181** 182** Returns void 183** 184*******************************************************************************/ 185void BTA_AgOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, tBTA_SERVICE_MASK services) 186{ 187 tBTA_AG_API_OPEN *p_buf; 188 189 if ((p_buf = (tBTA_AG_API_OPEN *) GKI_getbuf(sizeof(tBTA_AG_API_OPEN))) != NULL) 190 { 191 p_buf->hdr.event = BTA_AG_API_OPEN_EVT; 192 p_buf->hdr.layer_specific = handle; 193 bdcpy(p_buf->bd_addr, bd_addr); 194 p_buf->services = services; 195 p_buf->sec_mask = sec_mask; 196 bta_sys_sendmsg(p_buf); 197 } 198} 199 200/******************************************************************************* 201** 202** Function BTA_AgClose 203** 204** Description Close the current connection to a headset or a handsfree 205** Any current audio connection will also be closed. 206** 207** 208** Returns void 209** 210*******************************************************************************/ 211void BTA_AgClose(UINT16 handle) 212{ 213 BT_HDR *p_buf; 214 215 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 216 { 217 p_buf->event = BTA_AG_API_CLOSE_EVT; 218 p_buf->layer_specific = handle; 219 bta_sys_sendmsg(p_buf); 220 } 221} 222 223/******************************************************************************* 224** 225** Function BTA_AgAudioOpen 226** 227** Description Opens an audio connection to the currently connected 228** headset or hnadsfree. 229** 230** 231** Returns void 232** 233*******************************************************************************/ 234void BTA_AgAudioOpen(UINT16 handle) 235{ 236 BT_HDR *p_buf; 237 238 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 239 { 240 p_buf->event = BTA_AG_API_AUDIO_OPEN_EVT; 241 p_buf->layer_specific = handle; 242 bta_sys_sendmsg(p_buf); 243 } 244} 245 246/******************************************************************************* 247** 248** Function BTA_AgAudioClose 249** 250** Description Close the currently active audio connection to a headset 251** or hnadsfree. The data connection remains open 252** 253** 254** Returns void 255** 256*******************************************************************************/ 257void BTA_AgAudioClose(UINT16 handle) 258{ 259 BT_HDR *p_buf; 260 261 if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL) 262 { 263 p_buf->event = BTA_AG_API_AUDIO_CLOSE_EVT; 264 p_buf->layer_specific = handle; 265 bta_sys_sendmsg(p_buf); 266 } 267} 268 269 270/******************************************************************************* 271** 272** Function BTA_AgResult 273** 274** Description Send an AT result code to a headset or hands-free device. 275** This function is only used when the AG parse mode is set 276** to BTA_AG_PARSE. 277** 278** 279** Returns void 280** 281*******************************************************************************/ 282void BTA_AgResult(UINT16 handle, tBTA_AG_RES result, tBTA_AG_RES_DATA *p_data) 283{ 284 tBTA_AG_API_RESULT *p_buf; 285 286 if ((p_buf = (tBTA_AG_API_RESULT *) GKI_getbuf(sizeof(tBTA_AG_API_RESULT))) != NULL) 287 { 288 p_buf->hdr.event = BTA_AG_API_RESULT_EVT; 289 p_buf->hdr.layer_specific = handle; 290 p_buf->result = result; 291 if(p_data) 292 { 293 memcpy(&p_buf->data, p_data, sizeof(p_buf->data)); 294 } 295 bta_sys_sendmsg(p_buf); 296 } 297} 298 299/******************************************************************************* 300** 301** Function BTA_AgSetCodec 302** 303** Description Specify the codec type to be used for the subsequent 304** audio connection. 305** 306** 307** 308** Returns void 309** 310*******************************************************************************/ 311void BTA_AgSetCodec(UINT16 handle, tBTA_AG_PEER_CODEC codec) 312{ 313 tBTA_AG_API_SETCODEC *p_buf; 314 315 if ((p_buf = (tBTA_AG_API_SETCODEC *) GKI_getbuf(sizeof(tBTA_AG_API_SETCODEC))) != NULL) 316 { 317 p_buf->hdr.event = BTA_AG_API_SETCODEC_EVT; 318 p_buf->hdr.layer_specific = handle; 319 p_buf->codec = codec; 320 bta_sys_sendmsg(p_buf); 321 } 322} 323 324