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