1/****************************************************************************** 2 * 3 * Copyright (C) 2004-2012 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 file contains action functions for advanced audio/video stream 22 * state machine. these functions are shared by both audio and video 23 * streams. 24 * 25 ******************************************************************************/ 26 27#include "bt_target.h" 28#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE) 29 30#include <string.h> 31#include "bta_av_int.h" 32#include "avdt_api.h" 33#include "bd.h" 34#include "utl.h" 35#include "l2c_api.h" 36#include "l2cdefs.h" 37#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) 38#include "bta_ar_api.h" 39#endif 40 41/***************************************************************************** 42** Constants 43*****************************************************************************/ 44 45/* the delay time in milliseconds to start service discovery on AVRCP */ 46#ifndef BTA_AV_RC_DISC_TIME_VAL 47#define BTA_AV_RC_DISC_TIME_VAL 3500 48#endif 49 50/* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed to be sent */ 51#ifndef BTA_AV_CLOSE_REQ_TIME_VAL 52#define BTA_AV_CLOSE_REQ_TIME_VAL 4000 53#endif 54 55/* number to retry on reconfigure failure - some headsets requirs this number to be more than 1 */ 56#ifndef BTA_AV_RECONFIG_RETRY 57#define BTA_AV_RECONFIG_RETRY 6 58#endif 59 60/* state machine states */ 61enum 62{ 63 BTA_AV_INIT_SST, 64 BTA_AV_INCOMING_SST, 65 BTA_AV_OPENING_SST, 66 BTA_AV_OPEN_SST, 67 BTA_AV_RCFG_SST, 68 BTA_AV_CLOSING_SST 69}; 70 71 72/* the call out functions for audio stream */ 73const tBTA_AV_CO_FUNCTS bta_av_a2d_cos = 74{ 75 bta_av_co_audio_init, 76 bta_av_co_audio_disc_res, 77 bta_av_co_audio_getconfig, 78 bta_av_co_audio_setconfig, 79 bta_av_co_audio_open, 80 bta_av_co_audio_close, 81 bta_av_co_audio_start, 82 bta_av_co_audio_stop, 83 bta_av_co_audio_src_data_path, 84 bta_av_co_audio_delay 85}; 86 87/* ssm action functions for audio stream */ 88const tBTA_AV_SACT bta_av_a2d_action[] = 89{ 90 bta_av_do_disc_a2d, /* BTA_AV_DO_DISC */ 91 bta_av_cleanup, /* BTA_AV_CLEANUP */ 92 bta_av_free_sdb, /* BTA_AV_FREE_SDB */ 93 bta_av_config_ind, /* BTA_AV_CONFIG_IND */ 94 bta_av_disconnect_req, /* BTA_AV_DISCONNECT_REQ */ 95 bta_av_security_req, /* BTA_AV_SECURITY_REQ */ 96 bta_av_security_rsp, /* BTA_AV_SECURITY_RSP */ 97 bta_av_setconfig_rsp, /* BTA_AV_SETCONFIG_RSP */ 98 bta_av_st_rc_timer, /* BTA_AV_ST_RC_TIMER */ 99 bta_av_str_opened, /* BTA_AV_STR_OPENED */ 100 bta_av_security_ind, /* BTA_AV_SECURITY_IND */ 101 bta_av_security_cfm, /* BTA_AV_SECURITY_CFM */ 102 bta_av_do_close, /* BTA_AV_DO_CLOSE */ 103 bta_av_connect_req, /* BTA_AV_CONNECT_REQ */ 104 bta_av_sdp_failed, /* BTA_AV_SDP_FAILED */ 105 bta_av_disc_results, /* BTA_AV_DISC_RESULTS */ 106 bta_av_disc_res_as_acp, /* BTA_AV_DISC_RES_AS_ACP */ 107 bta_av_open_failed, /* BTA_AV_OPEN_FAILED */ 108 bta_av_getcap_results, /* BTA_AV_GETCAP_RESULTS */ 109 bta_av_setconfig_rej, /* BTA_AV_SETCONFIG_REJ */ 110 bta_av_discover_req, /* BTA_AV_DISCOVER_REQ */ 111 bta_av_conn_failed, /* BTA_AV_CONN_FAILED */ 112 bta_av_do_start, /* BTA_AV_DO_START */ 113 bta_av_str_stopped, /* BTA_AV_STR_STOPPED */ 114 bta_av_reconfig, /* BTA_AV_RECONFIG */ 115 bta_av_data_path, /* BTA_AV_DATA_PATH */ 116 bta_av_start_ok, /* BTA_AV_START_OK */ 117 bta_av_start_failed, /* BTA_AV_START_FAILED */ 118 bta_av_str_closed, /* BTA_AV_STR_CLOSED */ 119 bta_av_clr_cong, /* BTA_AV_CLR_CONG */ 120 bta_av_suspend_cfm, /* BTA_AV_SUSPEND_CFM */ 121 bta_av_rcfg_str_ok, /* BTA_AV_RCFG_STR_OK */ 122 bta_av_rcfg_failed, /* BTA_AV_RCFG_FAILED */ 123 bta_av_rcfg_connect, /* BTA_AV_RCFG_CONNECT */ 124 bta_av_rcfg_discntd, /* BTA_AV_RCFG_DISCNTD */ 125 bta_av_suspend_cont, /* BTA_AV_SUSPEND_CONT */ 126 bta_av_rcfg_cfm, /* BTA_AV_RCFG_CFM */ 127 bta_av_rcfg_open, /* BTA_AV_RCFG_OPEN */ 128 bta_av_security_rej, /* BTA_AV_SECURITY_REJ */ 129 bta_av_open_rc, /* BTA_AV_OPEN_RC */ 130 bta_av_chk_2nd_start, /* BTA_AV_CHK_2ND_START */ 131 bta_av_save_caps, /* BTA_AV_SAVE_CAPS */ 132 bta_av_set_use_rc, /* BTA_AV_SET_USE_RC */ 133 bta_av_cco_close, /* BTA_AV_CCO_CLOSE */ 134 bta_av_switch_role, /* BTA_AV_SWITCH_ROLE */ 135 bta_av_role_res, /* BTA_AV_ROLE_RES */ 136 bta_av_delay_co, /* BTA_AV_DELAY_CO */ 137 bta_av_open_at_inc, /* BTA_AV_OPEN_AT_INC */ 138 NULL 139}; 140 141/* these tables translate AVDT events to SSM events */ 142static const UINT16 bta_av_stream_evt_ok[] = { 143 BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */ 144 BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */ 145 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */ 146 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */ 147 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */ 148 BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */ 149 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */ 150 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */ 151 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */ 152 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */ 153 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */ 154 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */ 155 0, /* AVDT_RECONFIG_IND_EVT */ 156 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */ 157 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */ 158 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */ 159 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */ 160 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */ 161#if (AVDT_REPORTING == TRUE) 162 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */ 163 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */ 164#endif 165 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */ 166 0 /* AVDT_DELAY_REPORT_CFM_EVT */ 167}; 168 169static const UINT16 bta_av_stream_evt_fail[] = { 170 BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */ 171 BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */ 172 BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */ 173 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */ 174 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */ 175 BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */ 176 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */ 177 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */ 178 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */ 179 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */ 180 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */ 181 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */ 182 0, /* AVDT_RECONFIG_IND_EVT */ 183 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */ 184 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */ 185 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */ 186 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */ 187 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */ 188#if (AVDT_REPORTING == TRUE) 189 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */ 190 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */ 191#endif 192 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */ 193 0 /* AVDT_DELAY_REPORT_CFM_EVT */ 194}; 195 196static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); 197static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); 198#if BTA_AV_NUM_STRS > 2 199static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); 200#endif 201#if BTA_AV_NUM_STRS > 3 202static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); 203#endif 204#if BTA_AV_NUM_STRS > 4 205static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); 206#endif 207#if BTA_AV_NUM_STRS > 5 208static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); 209#endif 210/* the array of callback functions to receive events from AVDT control channel */ 211tAVDT_CTRL_CBACK * const bta_av_dt_cback[] = 212{ 213 bta_av_stream0_cback 214 ,bta_av_stream1_cback 215#if BTA_AV_NUM_STRS > 2 216 ,bta_av_stream2_cback 217#endif 218#if BTA_AV_NUM_STRS > 3 219 ,bta_av_stream3_cback 220#endif 221#if BTA_AV_NUM_STRS > 4 222 ,bta_av_stream4_cback 223#endif 224#if BTA_AV_NUM_STRS > 5 225 ,bta_av_stream5_cback 226#endif 227}; 228 229/******************************************************************************* 230** 231** Function bta_av_save_addr 232** 233** Description copy the bd_addr and maybe reset the supported flags 234** 235** 236** Returns void 237** 238*******************************************************************************/ 239static void bta_av_save_addr(tBTA_AV_SCB *p_scb, const BD_ADDR b) 240{ 241 APPL_TRACE_DEBUG2("bta_av_save_addr r:%d, s:%d", 242 p_scb->recfg_sup, p_scb->suspend_sup); 243 if(bdcmp(p_scb->peer_addr, b) != 0) 244 { 245 APPL_TRACE_ERROR0("reset flags"); 246 /* a new addr, reset the supported flags */ 247 p_scb->recfg_sup = TRUE; 248 p_scb->suspend_sup = TRUE; 249 } 250 251 /* do this copy anyway, just in case the first addr matches 252 * the control block one by accident */ 253 bdcpy(p_scb->peer_addr, b); 254} 255 256/******************************************************************************* 257** 258** Function notify_start_failed 259** 260** Description notify up-layer AV start failed 261** 262** 263** Returns void 264** 265*******************************************************************************/ 266static void notify_start_failed(tBTA_AV_SCB *p_scb) 267{ 268 tBTA_AV_START start; 269 /* if start failed, clear role */ 270 p_scb->role &= ~BTA_AV_ROLE_START_INT; 271 start.chnl = p_scb->chnl; 272 start.status = BTA_AV_FAIL; 273 start.initiator = TRUE; 274 start.hndl = p_scb->hndl; 275 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 276} 277 278/******************************************************************************* 279** 280** Function bta_av_st_rc_timer 281** 282** Description start the AVRC timer if no RC connection & CT is supported & 283** RC is used or 284** as ACP (we do not really know if we want AVRC) 285** 286** Returns void 287** 288*******************************************************************************/ 289void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 290{ 291 292 APPL_TRACE_DEBUG2("bta_av_st_rc_timer rc_handle:%d, use_rc: %d", 293 p_scb->rc_handle, p_scb->use_rc); 294 /* for outgoing RC connection as INT/CT */ 295 if( (p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) && 296 /*(bta_av_cb.features & BTA_AV_FEAT_RCCT) &&*/ 297 (p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP)) ) 298 { 299 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) 300 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); 301 else 302 p_scb->wait |= BTA_AV_WAIT_CHECK_RC; 303 } 304 305} 306 307/******************************************************************************* 308** 309** Function bta_av_next_getcap 310** 311** Description The function gets the capabilities of the next available 312** stream found in the discovery results. 313** 314** Returns TRUE if we sent request to AVDT, FALSE otherwise. 315** 316*******************************************************************************/ 317static BOOLEAN bta_av_next_getcap(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 318{ 319 int i; 320 tAVDT_GETCAP_REQ *p_req; 321 BOOLEAN sent_cmd = FALSE; 322 323 for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++) 324 { 325 /* steam not in use, is a sink, and is the right media type (audio/video) */ 326 if ((p_scb->sep_info[i].in_use == FALSE) && 327 (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && 328 (p_scb->sep_info[i].media_type == p_scb->media_type)) 329 { 330 p_scb->sep_info_idx = i; 331 332 /* we got a stream; get its capabilities */ 333 if (p_scb->p_cap == NULL) 334 { 335 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG)); 336 } 337 if (p_scb->p_cap == NULL) 338 { 339 i = p_scb->num_seps; 340 break; 341 } 342 if (p_scb->avdt_version >= AVDT_VERSION_SYNC) 343 { 344 p_req = AVDT_GetAllCapReq; 345 } 346 else 347 { 348 p_req = AVDT_GetCapReq; 349 } 350 (*p_req)(p_scb->peer_addr, 351 p_scb->sep_info[i].seid, 352 p_scb->p_cap, bta_av_dt_cback[p_scb->hdi]); 353 sent_cmd = TRUE; 354 break; 355 } 356 } 357 358 /* if no streams available then stream open fails */ 359 if (!sent_cmd) 360 { 361 bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data); 362 } 363 364 return sent_cmd; 365 366} 367 368/******************************************************************************* 369** 370** Function bta_av_proc_stream_evt 371** 372** Description Utility function to compose stream events. 373** 374** Returns void 375** 376*******************************************************************************/ 377void bta_av_proc_stream_evt(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data, int index) 378{ 379 tBTA_AV_STR_MSG *p_msg; 380 UINT16 sec_len = 0; 381 tBTA_AV_SCB *p_scb = bta_av_cb.p_scb[index]; 382 int xx; 383 384 if (p_data) 385 { 386 if (event == AVDT_SECURITY_IND_EVT) 387 { 388 sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN) ? 389 p_data->security_ind.len : BTA_AV_SECURITY_MAX_LEN; 390 } 391 else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0) 392 { 393 sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN) ? 394 p_data->security_cfm.len : BTA_AV_SECURITY_MAX_LEN; 395 } 396 } 397 398 if (p_scb && (p_msg = (tBTA_AV_STR_MSG *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_STR_MSG) + sec_len))) != NULL) 399 { 400 401 /* copy event data, bd addr, and handle to event message buffer */ 402 p_msg->hdr.offset = 0; 403 404 if (bd_addr != NULL) 405 { 406 bdcpy(p_msg->bd_addr, bd_addr); 407 APPL_TRACE_DEBUG6(" bd_addr:%02x-%02x-%02x-%02x-%02x-%02x", 408 bd_addr[0], bd_addr[1], 409 bd_addr[2], bd_addr[3], 410 bd_addr[4], bd_addr[5]); 411 } 412 413 if (p_data != NULL) 414 { 415 memcpy(&p_msg->msg, p_data, sizeof (tAVDT_CTRL)); 416 /* copy config params to event message buffer */ 417 switch (event) 418 { 419 case AVDT_RECONFIG_CFM_EVT: 420 APPL_TRACE_DEBUG4("reconfig cfm event codec info = 0x%06x-%06x-%06x-%02x", 421 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[0]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[1]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[2], 422 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[3]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[4]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[5], 423 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[6]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[7]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[8], 424 p_msg->msg.reconfig_cfm.p_cfg->codec_info[9]); 425 break; 426 427 428 429 case AVDT_CONFIG_IND_EVT: 430 /* We might have 2 SEP signallings(A2DP + VDP) with one peer device on one L2CAP. 431 * If we already have a signalling connection with the bd_addr and the streaming 432 * SST is at INIT state, change it to INCOMING state to handle the signalling 433 * from the 2nd SEP. */ 434 if ((bta_av_find_lcb(bd_addr, BTA_AV_LCB_FIND) != NULL) && (bta_av_is_scb_init(p_scb))) 435 { 436 bta_av_set_scb_sst_incoming (p_scb); 437 438 /* When ACP_CONNECT_EVT was received, we put first available scb to incoming state. 439 * Later when we receive AVDT_CONFIG_IND_EVT, we use a new p_scb and set its state to 440 * incoming which we do it above. 441 * We also have to set the old p_scb state to init to be used later */ 442 for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) 443 { 444 if ((bta_av_cb.p_scb[xx]) && (xx != index)) 445 { 446 if (bta_av_cb.p_scb[xx]->state == BTA_AV_INCOMING_SST) 447 { 448 bta_av_cb.p_scb[xx]->state = BTA_AV_INIT_SST; 449 bta_av_cb.p_scb[xx]->coll_mask = 0; 450 break; 451 } 452 } 453 } 454 } 455 456 memcpy(&p_msg->cfg, p_data->config_ind.p_cfg, sizeof(tAVDT_CFG)); 457 break; 458 459 case AVDT_SECURITY_IND_EVT: 460 p_msg->msg.security_ind.p_data = (UINT8 *) (p_msg + 1); 461 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data, sec_len); 462 break; 463 464 case AVDT_SECURITY_CFM_EVT: 465 p_msg->msg.security_cfm.p_data = (UINT8 *) (p_msg + 1); 466 if (p_data->hdr.err_code == 0) 467 { 468 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data, sec_len); 469 } 470 break; 471 case AVDT_SUSPEND_IND_EVT: 472 p_msg->msg.hdr.err_code = 0; 473 break; 474 475 default: 476 break; 477 } 478 } 479 else 480 p_msg->msg.hdr.err_code = 0; 481 482 /* look up application event */ 483 if ((p_data == NULL) || (p_data->hdr.err_code == 0)) 484 { 485 p_msg->hdr.event = bta_av_stream_evt_ok[event]; 486 } 487 else 488 { 489 p_msg->hdr.event = bta_av_stream_evt_fail[event]; 490 } 491 492 p_msg->initiator = FALSE; 493 if (event == AVDT_SUSPEND_CFM_EVT) 494 p_msg->initiator = TRUE; 495 496 APPL_TRACE_VERBOSE1("hndl:x%x", p_scb->hndl); 497 p_msg->hdr.layer_specific = p_scb->hndl; 498 p_msg->handle = handle; 499 p_msg->avdt_event = event; 500 bta_sys_sendmsg(p_msg); 501 } 502 503/* coverity[var_deref_model] */ 504/* false-positive: bta_av_conn_cback only processes AVDT_CONNECT_IND_EVT and AVDT_DISCONNECT_IND_EVT event 505 * these 2 events always have associated p_data */ 506 bta_av_conn_cback(handle, bd_addr, event, p_data); 507} 508 509/******************************************************************************* 510** 511** Function bta_av_stream0_cback 512** 513** Description This is the AVDTP callback function for stream events. 514** 515** Returns void 516** 517*******************************************************************************/ 518static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 519{ 520 APPL_TRACE_VERBOSE2("bta_av_stream0_cback avdt_handle: %d event=0x%x", handle, event); 521 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 0); 522} 523 524/******************************************************************************* 525** 526** Function bta_av_stream1_cback 527** 528** Description This is the AVDTP callback function for stream events. 529** 530** Returns void 531** 532*******************************************************************************/ 533static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 534{ 535 APPL_TRACE_EVENT2("bta_av_stream1_cback avdt_handle: %d event=0x%x", handle, event); 536 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 1); 537} 538 539#if BTA_AV_NUM_STRS > 2 540/******************************************************************************* 541** 542** Function bta_av_stream2_cback 543** 544** Description This is the AVDTP callback function for stream events. 545** 546** Returns void 547** 548*******************************************************************************/ 549static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 550{ 551 APPL_TRACE_EVENT2("bta_av_stream2_cback avdt_handle: %d event=0x%x", handle, event); 552 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 2); 553} 554#endif 555 556#if BTA_AV_NUM_STRS > 3 557/******************************************************************************* 558** 559** Function bta_av_stream3_cback 560** 561** Description This is the AVDTP callback function for stream events. 562** 563** Returns void 564** 565*******************************************************************************/ 566static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 567{ 568 APPL_TRACE_EVENT2("bta_av_stream3_cback avdt_handle: %d event=0x%x", handle, event); 569 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 3); 570} 571#endif 572 573/******************************************************************************* 574** 575** Function bta_av_stream4_cback 576** 577** Description This is the AVDTP callback function for stream events. 578** 579** Returns void 580** 581*******************************************************************************/ 582#if BTA_AV_NUM_STRS > 4 583static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 584{ 585 APPL_TRACE_EVENT2("bta_av_stream4_cback avdt_handle: %d event=0x%x", handle, event); 586 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 4); 587} 588#endif 589 590/******************************************************************************* 591** 592** Function bta_av_stream5_cback 593** 594** Description This is the AVDTP callback function for stream events. 595** 596** Returns void 597** 598*******************************************************************************/ 599#if BTA_AV_NUM_STRS > 5 600static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 601{ 602 APPL_TRACE_EVENT2("bta_av_stream5_cback avdt_handle: %d event=0x%x", handle, event); 603 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 5); 604} 605#endif 606 607/******************************************************************************* 608** 609** Function bta_av_a2d_sdp_cback 610** 611** Description A2DP service discovery callback. 612** 613** Returns void 614** 615*******************************************************************************/ 616static void bta_av_a2d_sdp_cback(BOOLEAN found, tA2D_Service *p_service) 617{ 618 tBTA_AV_SDP_RES *p_msg; 619 tBTA_AV_SCB *p_scb; 620 621 if ((p_msg = (tBTA_AV_SDP_RES *) GKI_getbuf(sizeof(tBTA_AV_SDP_RES))) != NULL) 622 { 623 p_msg->hdr.event = (found) ? BTA_AV_SDP_DISC_OK_EVT : BTA_AV_SDP_DISC_FAIL_EVT; 624 625 p_scb = bta_av_hndl_to_scb(bta_av_cb.handle); 626 if (p_scb) 627 { 628 if (found && (p_service != NULL)) 629 p_scb->avdt_version = p_service->avdt_version; 630 else 631 p_scb->avdt_version = 0x00; 632 633 p_msg->hdr.layer_specific = bta_av_cb.handle; 634 bta_sys_sendmsg(p_msg); 635 } 636 else 637 { 638 APPL_TRACE_ERROR1 ("bta_av_a2d_sdp_cback, no scb found for handle(0x%x)", bta_av_cb.handle); 639 } 640 } 641} 642 643/******************************************************************************* 644** 645** Function bta_av_adjust_seps_idx 646** 647** Description adjust the sep_idx 648** 649** Returns 650** 651*******************************************************************************/ 652static void bta_av_adjust_seps_idx(tBTA_AV_SCB *p_scb) 653{ 654 int xx; 655 656 APPL_TRACE_DEBUG1("bta_av_adjust_seps_idx codec_type: %d", p_scb->codec_type); 657 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++) 658 { 659 APPL_TRACE_DEBUG2("av_handle: %d codec_type: %d", 660 p_scb->seps[xx].av_handle, p_scb->seps[xx].codec_type); 661 if(p_scb->seps[xx].av_handle && p_scb->codec_type == p_scb->seps[xx].codec_type) 662 { 663 p_scb->sep_idx = xx; 664 p_scb->avdt_handle = p_scb->seps[xx].av_handle; 665 break; 666 } 667 } 668} 669 670/******************************************************************************* 671** 672** Function bta_av_switch_role 673** 674** Description Switch role was not started and a timer was started. 675** another attempt to switch role now - still opening. 676** 677** Returns void 678** 679*******************************************************************************/ 680void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 681{ 682 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE; 683 tBTA_AV_API_OPEN *p_buf = &p_scb->q_info.open; 684 685 APPL_TRACE_DEBUG1("bta_av_switch_role wait:x%x", p_scb->wait); 686 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START) 687 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY; 688 689 /* clear the masks set when the timer is started */ 690 p_scb->wait &= ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START); 691 692 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) 693 { 694 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) 695 { 696 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; 697 } 698 else 699 { 700 /* this should not happen in theory. Just in case... 701 * continue to do_disc_a2d */ 702 switch_res = BTA_AV_RS_DONE; 703 } 704 } 705 else 706 { 707 /* report failure on OPEN */ 708 switch_res = BTA_AV_RS_FAIL; 709 } 710 711 if (switch_res != BTA_AV_RS_NONE) 712 { 713 if (bta_av_cb.rs_idx == (p_scb->hdi + 1)) 714 { 715 bta_av_cb.rs_idx = 0; 716 } 717 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY; 718 p_scb->q_tag = 0; 719 p_buf->switch_res = switch_res; 720 bta_av_do_disc_a2d(p_scb, (tBTA_AV_DATA *)p_buf); 721 } 722} 723 724/******************************************************************************* 725** 726** Function bta_av_role_res 727** 728** Description Handle the role changed event 729** 730** 731** Returns void 732** 733*******************************************************************************/ 734void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 735{ 736 BOOLEAN initiator = FALSE; 737 tBTA_AV_START start; 738 tBTA_AV_OPEN av_open; 739 740 APPL_TRACE_DEBUG3("bta_av_role_res q_tag:%d, wait:x%x, role:x%x", p_scb->q_tag, p_scb->wait, p_scb->role); 741 if (p_scb->role & BTA_AV_ROLE_START_INT) 742 initiator = TRUE; 743 744 if (p_scb->q_tag == BTA_AV_Q_TAG_START) 745 { 746 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED) 747 { 748 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 749 if (p_data->role_res.hci_status != HCI_SUCCESS) 750 { 751 p_scb->role &= ~BTA_AV_ROLE_START_INT; 752 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 753 /* start failed because of role switch. */ 754 start.chnl = p_scb->chnl; 755 start.status = BTA_AV_FAIL_ROLE; 756 start.hndl = p_scb->hndl; 757 start.initiator = initiator; 758 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 759 } 760 else 761 { 762 bta_av_start_ok(p_scb, p_data); 763 } 764 } 765 else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START) 766 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED; 767 } 768 else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) 769 { 770 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN) 771 { 772 p_scb->role &= ~BTA_AV_ROLE_START_INT; 773 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 774 775 if (p_data->role_res.hci_status != HCI_SUCCESS) 776 { 777 /* Open failed because of role switch. */ 778 bdcpy(av_open.bd_addr, p_scb->peer_addr); 779 av_open.chnl = p_scb->chnl; 780 av_open.hndl = p_scb->hndl; 781 start.status = BTA_AV_FAIL_ROLE; 782 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *)&av_open); 783 } 784 else 785 { 786 /* Continue av open process */ 787 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE; 788 bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open)); 789 } 790 } 791 else 792 { 793 APPL_TRACE_WARNING2 ("Unexpected role switch event: q_tag = %d wait = %d", p_scb->q_tag, p_scb->wait); 794 } 795 } 796 797 APPL_TRACE_DEBUG2("wait:x%x, role:x%x", p_scb->wait, p_scb->role); 798} 799 800/******************************************************************************* 801** 802** Function bta_av_delay_co 803** 804** Description Call the delay call-out function to report the delay report 805** from SNK 806** 807** Returns void 808** 809*******************************************************************************/ 810void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 811{ 812 p_scb->p_cos->delay(p_scb->hndl, p_data->str_msg.msg.delay_rpt_cmd.delay); 813} 814 815/******************************************************************************* 816** 817** Function bta_av_do_disc_a2d 818** 819** Description Do service discovery for A2DP. 820** 821** Returns void 822** 823*******************************************************************************/ 824void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 825{ 826 BOOLEAN ok_continue = FALSE; 827 tA2D_SDP_DB_PARAMS db_params; 828 UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, 829 ATTR_ID_PROTOCOL_DESC_LIST, 830 ATTR_ID_BT_PROFILE_DESC_LIST}; 831 832 APPL_TRACE_DEBUG3("bta_av_do_disc_a2d use_rc: %d rs:%d, oc:%d", 833 p_data->api_open.use_rc, p_data->api_open.switch_res, bta_av_cb.audio_open_cnt); 834 835 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN)); 836 837 switch(p_data->api_open.switch_res) 838 { 839 case BTA_AV_RS_NONE: 840 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) 841 { 842 /* waiting for role switch result. save the api to control block */ 843 memcpy(&p_scb->q_info.open, &p_data->api_open, sizeof(tBTA_AV_API_OPEN)); 844 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; 845 p_scb->q_tag = BTA_AV_Q_TAG_OPEN; 846 } 847 else 848 { 849 ok_continue = TRUE; 850 } 851 break; 852 853 case BTA_AV_RS_FAIL: 854 /* report a new failure event */ 855 p_scb->open_status = BTA_AV_FAIL_ROLE; 856 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL); 857 break; 858 859 case BTA_AV_RS_OK: 860 p_data = (tBTA_AV_DATA *)&p_scb->q_info.open; 861 /* continue to open if link role is ok */ 862 if (bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) 863 { 864 ok_continue = TRUE; 865 } 866 else 867 { 868 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; 869 } 870 break; 871 872 case BTA_AV_RS_DONE: 873 ok_continue = TRUE; 874 break; 875 } 876 877 APPL_TRACE_DEBUG3("ok_continue: %d wait:x%x, q_tag: %d", ok_continue, p_scb->wait, p_scb->q_tag); 878 if (!ok_continue) 879 return; 880 881 /* clear the role switch bits */ 882 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 883 884 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC) 885 { 886 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC; 887 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); 888 } 889 890 if (bta_av_cb.features & BTA_AV_FEAT_MASTER) 891 { 892 L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH); 893 894 if (bta_av_cb.audio_open_cnt == 1) 895 { 896 /* there's already an A2DP connection. do not allow switch */ 897 bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH); 898 } 899 } 900 /* store peer addr other parameters */ 901 bta_av_save_addr(p_scb, p_data->api_open.bd_addr); 902 p_scb->sec_mask = p_data->api_open.sec_mask; 903 p_scb->use_rc = p_data->api_open.use_rc; 904 905 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 906 907 /* allocate discovery database */ 908 if (p_scb->p_disc_db == NULL) 909 { 910 p_scb->p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(BTA_AV_DISC_BUF_SIZE); 911 } 912 913 /* only one A2D find service is active at a time */ 914 bta_av_cb.handle = p_scb->hndl; 915 916 if(p_scb->p_disc_db) 917 { 918 /* set up parameters */ 919 db_params.db_len = BTA_AV_DISC_BUF_SIZE; 920 db_params.num_attr = 3; 921 db_params.p_db = p_scb->p_disc_db; 922 db_params.p_attrs = attr_list; 923 924 if(A2D_FindService(UUID_SERVCLASS_AUDIO_SINK, p_scb->peer_addr, &db_params, 925 bta_av_a2d_sdp_cback) == A2D_SUCCESS) 926 { 927 return; 928 } 929 } 930 931 /* when the code reaches here, either the DB is NULL 932 * or A2D_FindService is not successful */ 933 bta_av_a2d_sdp_cback(FALSE, NULL); 934} 935 936/******************************************************************************* 937** 938** Function bta_av_cleanup 939** 940** Description cleanup AV stream control block. 941** 942** Returns void 943** 944*******************************************************************************/ 945void bta_av_cleanup(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 946{ 947 tBTA_AV_CONN_CHG msg; 948 int xx; 949 UINT8 role = BTA_AV_ROLE_AD_INT; 950 951 APPL_TRACE_DEBUG0("bta_av_cleanup"); 952 953 /* free any buffers */ 954 utl_freebuf((void **) &p_scb->p_cap); 955 utl_freebuf((void **) &p_scb->p_disc_db); 956 p_scb->avdt_version = 0; 957 958 /* initialize some control block variables */ 959 p_scb->open_status = BTA_AV_SUCCESS; 960 961 /* if de-registering shut everything down */ 962 msg.hdr.layer_specific = p_scb->hndl; 963 p_scb->started = FALSE; 964 p_scb->cong = FALSE; 965 p_scb->role = role; 966 p_scb->cur_psc_mask = 0; 967 p_scb->wait = 0; 968 p_scb->num_disc_snks = 0; 969 bta_sys_stop_timer(&p_scb->timer); 970 if (p_scb->deregistring) 971 { 972 /* remove stream */ 973 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++) 974 { 975 if(p_scb->seps[xx].av_handle) 976 AVDT_RemoveStream(p_scb->seps[xx].av_handle); 977 p_scb->seps[xx].av_handle = 0; 978 } 979 980 bta_av_dereg_comp((tBTA_AV_DATA *) &msg); 981 } 982 else 983 { 984 /* report stream closed to main SM */ 985 msg.is_up = FALSE; 986 bdcpy(msg.peer_addr, p_scb->peer_addr); 987 bta_av_conn_chg((tBTA_AV_DATA *) &msg); 988 } 989} 990 991/******************************************************************************* 992** 993** Function bta_av_free_sdb 994** 995** Description Free service discovery db buffer. 996** 997** Returns void 998** 999*******************************************************************************/ 1000void bta_av_free_sdb(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1001{ 1002 utl_freebuf((void **) &p_scb->p_disc_db); 1003} 1004 1005/******************************************************************************* 1006** 1007** Function bta_av_config_ind 1008** 1009** Description Handle a stream configuration indication from the peer. 1010** 1011** Returns void 1012** 1013*******************************************************************************/ 1014void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1015{ 1016 tBTA_AV_CI_SETCONFIG setconfig; 1017 tAVDT_SEP_INFO *p_info; 1018 tAVDT_CFG *p_evt_cfg = &p_data->str_msg.cfg; 1019 UINT8 psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask); 1020 1021 p_scb->avdt_label = p_data->str_msg.msg.hdr.label; 1022 memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE); 1023 p_scb->codec_type = p_evt_cfg->codec_info[BTA_AV_CODEC_TYPE_IDX]; 1024 bta_av_save_addr(p_scb, p_data->str_msg.bd_addr); 1025 1026 /* Clear collision mask */ 1027 p_scb->coll_mask = 0; 1028 bta_sys_stop_timer(&bta_av_cb.acp_sig_tmr); 1029 1030 /* if no codec parameters in configuration, fail */ 1031 if ((p_evt_cfg->num_codec == 0) || 1032 /* or the peer requests for a service we do not support */ 1033 ((psc_mask != p_scb->cfg.psc_mask) && 1034 (psc_mask != (p_scb->cfg.psc_mask&~AVDT_PSC_DELAY_RPT))) ) 1035 { 1036 setconfig.hndl = p_scb->hndl; /* we may not need this */ 1037 setconfig.err_code = AVDT_ERR_UNSUP_CFG; 1038 bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT, (tBTA_AV_DATA *) &setconfig); 1039 } 1040 else 1041 { 1042 p_info = &p_scb->sep_info[0]; 1043 p_info->in_use = 0; 1044 p_info->media_type = p_scb->media_type; 1045 p_info->seid = p_data->str_msg.msg.config_ind.int_seid; 1046 p_info->tsep = AVDT_TSEP_SNK; 1047 p_scb->role |= BTA_AV_ROLE_AD_ACP; 1048 p_scb->cur_psc_mask = p_evt_cfg->psc_mask; 1049 if (bta_av_cb.features & BTA_AV_FEAT_RCTG) 1050 p_scb->use_rc = TRUE; 1051 else 1052 p_scb->use_rc = FALSE; 1053 1054 p_scb->num_seps = 1; 1055 p_scb->sep_info_idx = 0; 1056 APPL_TRACE_DEBUG3("bta_av_config_ind: SEID: %d use_rc: %d cur_psc_mask:0x%x", p_info->seid, p_scb->use_rc, p_scb->cur_psc_mask); 1057 1058 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type, 1059 p_evt_cfg->codec_info, 1060 p_info->seid, 1061 p_scb->peer_addr, 1062 p_evt_cfg->num_protect, 1063 p_evt_cfg->protect_info); 1064 } 1065} 1066 1067/******************************************************************************* 1068** 1069** Function bta_av_disconnect_req 1070** 1071** Description Disconnect AVDTP connection. 1072** 1073** Returns void 1074** 1075*******************************************************************************/ 1076void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1077{ 1078 tBTA_AV_RCB *p_rcb; 1079 APPL_TRACE_DEBUG1("bta_av_disconnect_req conn_lcb: 0x%x", bta_av_cb.conn_lcb); 1080 1081 bta_sys_stop_timer(&bta_av_cb.sig_tmr); 1082 bta_sys_stop_timer(&p_scb->timer); 1083 if(bta_av_cb.conn_lcb) 1084 { 1085 p_rcb = bta_av_get_rcb_by_shdl((UINT8)(p_scb->hdi + 1)); 1086 if (p_rcb) 1087 bta_av_del_rc(p_rcb); 1088 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); 1089 } 1090 else 1091 { 1092 bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL); 1093 } 1094} 1095 1096/******************************************************************************* 1097** 1098** Function bta_av_security_req 1099** 1100** Description Send an AVDTP security request. 1101** 1102** Returns void 1103** 1104*******************************************************************************/ 1105void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1106{ 1107 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) 1108 { 1109 AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data, 1110 p_data->api_protect_req.len); 1111 } 1112} 1113 1114/******************************************************************************* 1115** 1116** Function bta_av_security_rsp 1117** 1118** Description Send an AVDTP security response. 1119** 1120** Returns void 1121** 1122*******************************************************************************/ 1123void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1124{ 1125 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) 1126 { 1127 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->api_protect_rsp.error_code, 1128 p_data->api_protect_rsp.p_data, p_data->api_protect_rsp.len); 1129 } 1130 else 1131 { 1132 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, 1133 NULL, 0); 1134 } 1135} 1136 1137/******************************************************************************* 1138** 1139** Function bta_av_setconfig_rsp 1140** 1141** Description setconfig is OK 1142** 1143** Returns void 1144** 1145*******************************************************************************/ 1146void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1147{ 1148 UINT8 num = p_data->ci_setconfig.num_seid + 1; 1149 UINT8 *p_seid = p_data->ci_setconfig.p_seid; 1150 int i; 1151 1152 /* we like this codec_type. find the sep_idx */ 1153 bta_av_adjust_seps_idx(p_scb); 1154 APPL_TRACE_DEBUG2("bta_av_setconfig_rsp: sep_idx: %d cur_psc_mask:0x%x", p_scb->sep_idx, p_scb->cur_psc_mask); 1155 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->ci_setconfig.err_code, 1156 p_data->ci_setconfig.category); 1157 1158 bta_sys_stop_timer(&bta_av_cb.sig_tmr); 1159 1160 if(p_data->ci_setconfig.err_code == AVDT_SUCCESS) 1161 { 1162 p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON; 1163 if(p_data->ci_setconfig.recfg_needed) 1164 p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT; 1165 APPL_TRACE_ERROR3("bta_av_setconfig_rsp recfg_needed:%d role:x%x num:%d", 1166 p_data->ci_setconfig.recfg_needed, p_scb->role, num); 1167 /* callout module tells BTA the number of "good" SEPs and their SEIDs. 1168 * getcap on these SEID */ 1169 p_scb->num_seps = num; 1170 1171 if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT) 1172 p_scb->avdt_version = AVDT_VERSION_SYNC; 1173 1174 1175 if (p_scb->codec_type == BTA_AV_CODEC_SBC || num > 1) 1176 { 1177 /* if SBC is used by the SNK as INT, discover req is not sent in bta_av_config_ind. 1178 * call disc_res now */ 1179 p_scb->p_cos->disc_res(p_scb->hndl, num, num, p_scb->peer_addr); 1180 } 1181 else 1182 { 1183 /* we do not know the peer device and it is using non-SBC codec 1184 * we need to know all the SEPs on SNK */ 1185 bta_av_discover_req(p_scb, NULL); 1186 return; 1187 } 1188 1189 for (i = 1; i < num; i++) 1190 { 1191 APPL_TRACE_DEBUG2("sep_info[%d] SEID: %d", i, p_seid[i-1]); 1192 /* initialize the sep_info[] to get capabilities */ 1193 p_scb->sep_info[i].in_use = FALSE; 1194 p_scb->sep_info[i].tsep = AVDT_TSEP_SNK; 1195 p_scb->sep_info[i].media_type = p_scb->media_type; 1196 p_scb->sep_info[i].seid = p_seid[i-1]; 1197 } 1198 bta_av_next_getcap(p_scb, p_data); 1199 } 1200} 1201 1202/******************************************************************************* 1203** 1204** Function bta_av_str_opened 1205** 1206** Description Stream opened OK (incoming/outgoing). 1207** 1208** Returns void 1209** 1210*******************************************************************************/ 1211void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1212{ 1213 tBTA_AV_CONN_CHG msg; 1214 tBTA_AV_OPEN open; 1215 UINT8 *p; 1216 UINT16 mtu; 1217 1218 msg.hdr.layer_specific = p_scb->hndl; 1219 msg.is_up = TRUE; 1220 bdcpy(msg.peer_addr, p_scb->peer_addr); 1221 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle); 1222 bta_av_conn_chg((tBTA_AV_DATA *) &msg); 1223 /* set the congestion flag, so AV would not send media packets by accident */ 1224 p_scb->cong = TRUE; 1225 1226 1227 p_scb->stream_mtu = p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE; 1228 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu); 1229 APPL_TRACE_DEBUG3("bta_av_str_opened l2c_cid: 0x%x stream_mtu: %d mtu: %d", 1230 p_scb->l2c_cid, p_scb->stream_mtu, mtu); 1231 if(mtu == 0 || mtu > p_scb->stream_mtu) 1232 mtu = p_scb->stream_mtu; 1233 1234 /* Set the media channel as medium priority */ 1235 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_MEDIUM); 1236 L2CA_SetChnlFlushability (p_scb->l2c_cid, TRUE); 1237 1238 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 1239 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO)); 1240 1241 p_scb->l2c_bufs = 0; 1242 p_scb->p_cos->open(p_scb->hndl, 1243 p_scb->codec_type, p_scb->cfg.codec_info, mtu); 1244 1245 { 1246 /* TODO check if other audio channel is open. 1247 * If yes, check if reconfig is needed 1248 * Rigt now we do not do this kind of checking. 1249 * BTA-AV is INT for 2nd audio connection. 1250 * The application needs to make sure the current codec_info is proper. 1251 * If one audio connection is open and another SNK attempts to connect to AV, 1252 * the connection will be rejected. 1253 */ 1254 /* check if other audio channel is started. If yes, start */ 1255 bdcpy(open.bd_addr, p_scb->peer_addr); 1256 open.chnl = p_scb->chnl; 1257 open.hndl = p_scb->hndl; 1258 open.status = BTA_AV_SUCCESS; 1259 open.starting = bta_av_chk_start(p_scb); 1260 open.edr = 0; 1261 if( NULL != (p = BTM_ReadRemoteFeatures(p_scb->peer_addr))) 1262 { 1263 if(HCI_EDR_ACL_2MPS_SUPPORTED(p)) 1264 open.edr |= BTA_AV_EDR_2MBPS; 1265 if(HCI_EDR_ACL_3MPS_SUPPORTED(p)) 1266 open.edr |= BTA_AV_EDR_3MBPS; 1267 } 1268#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) 1269 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr); 1270#endif 1271 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open); 1272 if(open.starting) 1273 { 1274 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL); 1275 } 1276 } 1277} 1278 1279/******************************************************************************* 1280** 1281** Function bta_av_security_ind 1282** 1283** Description Handle an AVDTP security indication. 1284** 1285** Returns void 1286** 1287*******************************************************************************/ 1288void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1289{ 1290 tBTA_AV_PROTECT_REQ protect_req; 1291 1292 p_scb->avdt_label = p_data->str_msg.msg.hdr.label; 1293 1294 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) 1295 { 1296 protect_req.chnl = p_scb->chnl; 1297 protect_req.hndl = p_scb->hndl; 1298 /* 1299 APPL_TRACE_EVENT1("sec ind handle: x%x", protect_req.hndl); 1300 */ 1301 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data; 1302 protect_req.len = p_data->str_msg.msg.security_ind.len; 1303 1304 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, (tBTA_AV *) &protect_req); 1305 } 1306 /* app doesn't support security indication; respond with failure */ 1307 else 1308 { 1309 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL, 0); 1310 } 1311} 1312 1313/******************************************************************************* 1314** 1315** Function bta_av_security_cfm 1316** 1317** Description Handle an AVDTP security confirm. 1318** 1319** Returns void 1320** 1321*******************************************************************************/ 1322void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1323{ 1324 tBTA_AV_PROTECT_RSP protect_rsp; 1325 1326 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) 1327 { 1328 protect_rsp.chnl = p_scb->chnl; 1329 protect_rsp.hndl = p_scb->hndl; 1330 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data; 1331 protect_rsp.len = p_data->str_msg.msg.security_cfm.len; 1332 protect_rsp.err_code= p_data->str_msg.msg.hdr.err_code; 1333 1334 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, (tBTA_AV *) &protect_rsp); 1335 } 1336} 1337 1338/******************************************************************************* 1339** 1340** Function bta_av_do_close 1341** 1342** Description Close stream. 1343** 1344** Returns void 1345** 1346*******************************************************************************/ 1347void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1348{ 1349 /* stop stream if started */ 1350 if (p_scb->co_started) 1351 { 1352 bta_av_str_stopped(p_scb, NULL); 1353 } 1354 bta_sys_stop_timer(&bta_av_cb.sig_tmr); 1355 1356 /* close stream */ 1357 p_scb->started = FALSE; 1358 1359 /* drop the buffers queued in L2CAP */ 1360 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 1361 1362 AVDT_CloseReq(p_scb->avdt_handle); 1363 /* just in case that the link is congested, link is flow controled by peer or 1364 * for whatever reason the the close request can not be sent in time. 1365 * when this timer expires, AVDT_DisconnectReq will be called to disconnect the link 1366 */ 1367 bta_sys_start_timer(&p_scb->timer, 1368 (UINT16)BTA_AV_API_CLOSE_EVT, 1369 BTA_AV_CLOSE_REQ_TIME_VAL); 1370 1371} 1372 1373/******************************************************************************* 1374** 1375** Function bta_av_connect_req 1376** 1377** Description Connect AVDTP connection. 1378** 1379** Returns void 1380** 1381*******************************************************************************/ 1382void bta_av_connect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1383{ 1384 utl_freebuf((void **) &p_scb->p_disc_db); 1385 1386 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) 1387 { 1388 /* SNK initiated L2C connection while SRC was doing SDP. */ 1389 /* Wait until timeout to check if SNK starts signalling. */ 1390 APPL_TRACE_EVENT1("bta_av_connect_req: coll_mask = 0x%2X", p_scb->coll_mask); 1391 return; 1392 } 1393 1394 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); 1395} 1396 1397/******************************************************************************* 1398** 1399** Function bta_av_sdp_failed 1400** 1401** Description Service discovery failed. 1402** 1403** Returns void 1404** 1405*******************************************************************************/ 1406void bta_av_sdp_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1407{ 1408 if (!p_scb->open_status) 1409 p_scb->open_status = BTA_AV_FAIL_SDP; 1410 1411 utl_freebuf((void **) &p_scb->p_disc_db); 1412 bta_av_str_closed(p_scb, p_data); 1413} 1414 1415/******************************************************************************* 1416** 1417** Function bta_av_disc_results 1418** 1419** Description Handle the AVDTP discover results. Search through the 1420** results and find the first available stream, and get 1421** its capabilities. 1422** 1423** Returns void 1424** 1425*******************************************************************************/ 1426void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1427{ 1428 UINT8 num_snks = 0, i; 1429 1430 /* store number of stream endpoints returned */ 1431 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps; 1432 1433 for (i = 0; i < p_scb->num_seps; i++) 1434 { 1435 /* steam not in use, is a sink, and is audio */ 1436 if ((p_scb->sep_info[i].in_use == FALSE) && 1437 (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && 1438 (p_scb->sep_info[i].media_type == p_scb->media_type)) 1439 { 1440 num_snks++; 1441 } 1442 } 1443 1444 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr); 1445 p_scb->num_disc_snks = num_snks; 1446 1447 /* if we got any */ 1448 if (p_scb->num_seps > 0) 1449 { 1450 /* initialize index into discovery results */ 1451 p_scb->sep_info_idx = 0; 1452 1453 /* get the capabilities of the first available stream */ 1454 bta_av_next_getcap(p_scb, p_data); 1455 } 1456 /* else we got discover response but with no streams; we're done */ 1457 else 1458 { 1459 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data); 1460 } 1461} 1462 1463/******************************************************************************* 1464** 1465** Function bta_av_disc_res_as_acp 1466** 1467** Description Handle the AVDTP discover results. Search through the 1468** results and find the first available stream, and get 1469** its capabilities. 1470** 1471** Returns void 1472** 1473*******************************************************************************/ 1474void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1475{ 1476 UINT8 num_snks = 0, i; 1477 1478 /* store number of stream endpoints returned */ 1479 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps; 1480 1481 1482 1483 for (i = 0; i < p_scb->num_seps; i++) 1484 { 1485 /* steam is a sink, and is audio */ 1486 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && 1487 (p_scb->sep_info[i].media_type == p_scb->media_type)) 1488 { 1489 p_scb->sep_info[i].in_use = FALSE; 1490 num_snks++; 1491 } 1492 } 1493 1494 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr); 1495 p_scb->num_disc_snks = num_snks; 1496 1497 /* if we got any */ 1498 if (p_scb->num_seps > 0) 1499 { 1500 /* initialize index into discovery results */ 1501 p_scb->sep_info_idx = 0; 1502 1503 /* get the capabilities of the first available stream */ 1504 bta_av_next_getcap(p_scb, p_data); 1505 } 1506 /* else we got discover response but with no streams; we're done */ 1507 else 1508 { 1509 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data); 1510 } 1511} 1512 1513/******************************************************************************* 1514** 1515** Function bta_av_save_caps 1516** 1517** Description report the SNK SEP capabilities to application 1518** 1519** Returns void 1520** 1521*******************************************************************************/ 1522void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1523{ 1524 tAVDT_CFG cfg; 1525 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx]; 1526 UINT8 old_wait = p_scb->wait; 1527 BOOLEAN getcap_done = FALSE; 1528 1529 APPL_TRACE_DEBUG3("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x", 1530 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait); 1531 memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG)); 1532 /* let application know the capability of the SNK */ 1533 p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX], 1534 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid, 1535 &cfg.num_protect, cfg.protect_info); 1536 1537 p_scb->sep_info_idx++; 1538 if(p_scb->num_seps > p_scb->sep_info_idx) 1539 { 1540 /* Some devices have seps at the end of the discover list, which is not */ 1541 /* matching media type(video not audio). */ 1542 /* In this case, we are done with getcap without sending another */ 1543 /* request to AVDT. */ 1544 if (!bta_av_next_getcap(p_scb, p_data)) 1545 getcap_done = TRUE; 1546 } 1547 else 1548 getcap_done = TRUE; 1549 1550 if (getcap_done) 1551 { 1552 /* we are done getting capabilities. restore the p_cb->sep_info_idx */ 1553 p_scb->sep_info_idx = 0; 1554 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED); 1555 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED) 1556 { 1557 bta_av_start_ok (p_scb, NULL); 1558 } 1559 } 1560} 1561 1562/******************************************************************************* 1563** 1564** Function bta_av_set_use_rc 1565** 1566** Description set to use AVRC for this stream control block. 1567** 1568** Returns void 1569** 1570*******************************************************************************/ 1571void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1572{ 1573 p_scb->use_rc = TRUE; 1574} 1575 1576/******************************************************************************* 1577** 1578** Function bta_av_cco_close 1579** 1580** Description call close call-out function. 1581** 1582** Returns void 1583** 1584*******************************************************************************/ 1585void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1586{ 1587 UINT16 mtu; 1588 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU); 1589 1590 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu); 1591} 1592 1593/******************************************************************************* 1594** 1595** Function bta_av_open_failed 1596** 1597** Description Failed to open an AVDT stream 1598** 1599** Returns void 1600** 1601*******************************************************************************/ 1602void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1603{ 1604 1605 BOOLEAN is_av_opened = FALSE; 1606 tBTA_AV_SCB * p_opened_scb = NULL; 1607 UINT8 idx; 1608 tBTA_AV_OPEN open; 1609 1610 APPL_TRACE_DEBUG0("bta_av_open_failed"); 1611 p_scb->open_status = BTA_AV_FAIL_STREAM; 1612 bta_av_cco_close(p_scb, p_data); 1613 1614 /* check whether there is already an opened audio or video connection with the same device */ 1615 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (is_av_opened == FALSE); idx++ ) 1616 { 1617 p_opened_scb = bta_av_cb.p_scb[idx]; 1618 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) && (!bdcmp(p_opened_scb->peer_addr,p_scb->peer_addr )) ) 1619 is_av_opened = TRUE; 1620 1621 } 1622 1623 /* if there is already an active AV connnection with the same bd_addr, 1624 don't send disconnect req, just report the open event with BTA_AV_FAIL_GET_CAP status */ 1625 if (is_av_opened == TRUE) 1626 { 1627 bdcpy(open.bd_addr, p_scb->peer_addr); 1628 open.chnl = p_scb->chnl; 1629 open.hndl = p_scb->hndl; 1630 open.status = BTA_AV_FAIL_GET_CAP; 1631 open.starting = bta_av_chk_start(p_scb); 1632 open.edr = 0; 1633 /* set the state back to initial state */ 1634 bta_av_set_scb_sst_init(p_scb); 1635 1636 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open); 1637 1638 } 1639 else 1640 { 1641 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); 1642 } 1643} 1644 1645 1646/******************************************************************************* 1647** 1648** Function bta_av_getcap_results 1649** 1650** Description Handle the AVDTP get capabilities results. Check the codec 1651** type and see if it matches ours. If it does not, get the 1652** capabilities of the next stream, if any. 1653** 1654** Returns void 1655** 1656*******************************************************************************/ 1657void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1658{ 1659 tAVDT_CFG cfg; 1660 UINT8 media_type; 1661 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx]; 1662 1663 memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG)); 1664 cfg.num_codec = 1; 1665 cfg.num_protect = p_scb->p_cap->num_protect; 1666 memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE); 1667 memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE); 1668 media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4; 1669 1670 APPL_TRACE_DEBUG1("num_codec %d", p_scb->p_cap->num_codec); 1671 APPL_TRACE_DEBUG2("media type x%x, x%x", media_type, p_scb->media_type); 1672#if AVDT_MULTIPLEXING == TRUE 1673 APPL_TRACE_DEBUG2("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask); 1674#endif 1675 1676 /* if codec present and we get a codec configuration */ 1677 if ((p_scb->p_cap->num_codec != 0) && 1678 (media_type == p_scb->media_type) && 1679 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX], 1680 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid, 1681 &cfg.num_protect, cfg.protect_info) == 0)) 1682 { 1683#if AVDT_MULTIPLEXING == TRUE 1684 cfg.mux_mask &= p_scb->p_cap->mux_mask; 1685 APPL_TRACE_DEBUG1("mux_mask used x%x", cfg.mux_mask); 1686#endif 1687 /* save copy of codec type and configuration */ 1688 p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX]; 1689 memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG)); 1690 bta_av_adjust_seps_idx(p_scb); 1691 /* use only the services peer supports */ 1692 cfg.psc_mask &= p_scb->p_cap->psc_mask; 1693 p_scb->cur_psc_mask = cfg.psc_mask; 1694 1695 /* open the stream */ 1696 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr, 1697 p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg); 1698 1699 if (!bta_av_is_rcfg_sst(p_scb)) 1700 { 1701 /* free capabilities buffer */ 1702 utl_freebuf((void **) &p_scb->p_cap); 1703 } 1704 } 1705 else 1706 { 1707 /* try the next stream, if any */ 1708 p_scb->sep_info_idx++; 1709 bta_av_next_getcap(p_scb, p_data); 1710 } 1711 1712} 1713 1714/******************************************************************************* 1715** 1716** Function bta_av_setconfig_rej 1717** 1718** Description Send AVDTP set config reject. 1719** 1720** Returns void 1721** 1722*******************************************************************************/ 1723void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1724{ 1725 tBTA_AV_REJECT reject; 1726 1727 APPL_TRACE_DEBUG0("bta_av_setconfig_rej"); 1728 AVDT_ConfigRsp(p_data->str_msg.handle, p_data->str_msg.msg.hdr.label, AVDT_ERR_BAD_STATE, 0); 1729 bdcpy(reject.bd_addr, p_data->str_msg.bd_addr); 1730 reject.hndl = p_scb->hndl; 1731 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject); 1732} 1733 1734/******************************************************************************* 1735** 1736** Function bta_av_discover_req 1737** 1738** Description Send an AVDTP discover request to the peer. 1739** 1740** Returns void 1741** 1742*******************************************************************************/ 1743void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1744{ 1745 /* send avdtp discover request */ 1746 1747 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]); 1748} 1749 1750/******************************************************************************* 1751** 1752** Function bta_av_conn_failed 1753** 1754** Description AVDTP connection failed. 1755** 1756** Returns void 1757** 1758*******************************************************************************/ 1759void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1760{ 1761 p_scb->open_status = BTA_AV_FAIL_STREAM; 1762 bta_av_str_closed(p_scb, p_data); 1763} 1764 1765/******************************************************************************* 1766** 1767** Function bta_av_do_start 1768** 1769** Description Start stream. 1770** 1771** Returns void 1772** 1773*******************************************************************************/ 1774void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1775{ 1776 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 1777 UINT8 cur_role; 1778 1779 APPL_TRACE_DEBUG3("bta_av_do_start sco_occupied:%d, role:x%x, started:%d", bta_av_cb.sco_occupied, p_scb->role, p_scb->started); 1780 if (bta_av_cb.sco_occupied) 1781 { 1782 bta_av_start_failed(p_scb, p_data); 1783 return; 1784 } 1785 1786 /* disallow role switch during streaming, only if we are the master role 1787 * i.e. allow role switch, if we are slave. 1788 * It would not hurt us, if the peer device wants us to be master */ 1789 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) && 1790 (cur_role == BTM_ROLE_MASTER) ) 1791 { 1792 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 1793 } 1794 1795 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr); 1796 1797 if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0)) 1798 { 1799 p_scb->role |= BTA_AV_ROLE_START_INT; 1800 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 1801 1802 AVDT_StartReq(&p_scb->avdt_handle, 1); 1803 } 1804 else if (p_scb->started) 1805 { 1806 p_scb->role |= BTA_AV_ROLE_START_INT; 1807 if ( p_scb->wait == 0 ) { 1808 if (p_scb->role & BTA_AV_ROLE_SUSPEND) { 1809 notify_start_failed(p_scb); 1810 } else { 1811 bta_av_start_ok(p_scb, NULL); 1812 } 1813 } 1814 } 1815 APPL_TRACE_DEBUG2("started %d role:x%x", p_scb->started, p_scb->role); 1816} 1817 1818/******************************************************************************* 1819** 1820** Function bta_av_str_stopped 1821** 1822** Description Stream stopped. 1823** 1824** Returns void 1825** 1826*******************************************************************************/ 1827void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1828{ 1829 tBTA_AV_SUSPEND suspend_rsp; 1830 UINT8 start = p_scb->started; 1831 BOOLEAN sus_evt = TRUE; 1832 BT_HDR *p_buf; 1833 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 1834 1835 APPL_TRACE_ERROR2("bta_av_str_stopped:audio_open_cnt=%d, p_data %x", 1836 bta_av_cb.audio_open_cnt, p_data); 1837 1838 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 1839 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) 1840 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 1841 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); 1842 1843 if(p_scb->co_started) 1844 { 1845 bta_av_stream_chg(p_scb, FALSE); 1846 p_scb->co_started = FALSE; 1847 1848 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); 1849 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO); 1850 } 1851 1852 /* if q_info.a2d is not empty, drop it now */ 1853 if(BTA_AV_CHNL_AUDIO == p_scb->chnl) 1854 { 1855 while((p_buf = (BT_HDR*)GKI_dequeue (&p_scb->q_info.a2d)) != NULL) 1856 GKI_freebuf(p_buf); 1857 1858 /* drop the audio buffers queued in L2CAP */ 1859 if(p_data && p_data->api_stop.flush) 1860 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 1861 } 1862 1863 suspend_rsp.chnl = p_scb->chnl; 1864 suspend_rsp.hndl = p_scb->hndl; 1865 1866 if (p_data && p_data->api_stop.suspend) 1867 { 1868 APPL_TRACE_DEBUG2("suspending: %d, sup:%d", start, p_scb->suspend_sup); 1869 if ((start) && (p_scb->suspend_sup)) 1870 { 1871 sus_evt = FALSE; 1872 p_scb->l2c_bufs = 0; 1873 AVDT_SuspendReq(&p_scb->avdt_handle, 1); 1874 } 1875 1876 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is TRUE*/ 1877 if ((sus_evt)&&(p_scb->state != BTA_AV_RCFG_SST)) 1878 { 1879 suspend_rsp.status = BTA_AV_SUCCESS; 1880 suspend_rsp.initiator = TRUE; 1881 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp); 1882 } 1883 } 1884 else 1885 { 1886 suspend_rsp.status = BTA_AV_SUCCESS; 1887 suspend_rsp.initiator = TRUE; 1888 APPL_TRACE_EVENT1("bta_av_str_stopped status %d", suspend_rsp.status); 1889 1890 /* send STOP_EVT event only if not in reconfiguring state */ 1891 if (p_scb->state != BTA_AV_RCFG_SST) 1892 { 1893 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp); 1894 } 1895 } 1896} 1897 1898/******************************************************************************* 1899** 1900** Function bta_av_reconfig 1901** 1902** Description process the reconfigure request. 1903** save the parameter in control block and 1904** suspend, reconfigure or close the stream 1905** 1906** Returns void 1907** 1908*******************************************************************************/ 1909void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1910{ 1911 tAVDT_CFG *p_cfg; 1912 tBTA_AV_API_STOP stop; 1913 tBTA_AV_RECONFIG evt; 1914 tBTA_AV_API_RCFG *p_rcfg = &p_data->api_reconfig; 1915 1916 APPL_TRACE_DEBUG4("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)", 1917 p_scb->recfg_sup, p_scb->suspend_sup, 1918 p_scb->rcfg_idx, p_scb->sep_info_idx); 1919 1920 p_scb->num_recfg = 0; 1921 /* store the new configuration in control block */ 1922 if (p_scb->p_cap == NULL) 1923 { 1924 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG)); 1925 } 1926 if((p_cfg = p_scb->p_cap) == NULL) 1927 { 1928 /* report failure */ 1929 evt.status = BTA_AV_FAIL_RESOURCES; 1930 evt.chnl = p_scb->chnl; 1931 evt.hndl = p_scb->hndl; 1932 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 1933 1934 /* this event is not possible in this state. 1935 * use it to bring the SSM back to open state */ 1936 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_OK_EVT, NULL); 1937 return; 1938 } 1939 1940 /*if(bta_av_cb.features & BTA_AV_FEAT_RCCT)*/ 1941 bta_sys_stop_timer(&p_scb->timer); 1942 1943 memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG)); 1944 p_cfg->num_protect = p_rcfg->num_protect; 1945 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE); 1946 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect); 1947 p_scb->rcfg_idx = p_rcfg->sep_info_idx; 1948 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; 1949 1950 /* if the requested index differs from the current one, we can only close/open */ 1951 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) && 1952 (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup)) 1953 { 1954 if(p_scb->started) 1955 { 1956 stop.flush = FALSE; 1957 stop.suspend = TRUE; 1958 bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop); 1959 } 1960 else 1961 { 1962 APPL_TRACE_DEBUG0("Reconfig"); 1963 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap); 1964 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; 1965 } 1966 } 1967 else 1968 { 1969 /* close the stream */ 1970 APPL_TRACE_DEBUG1("close/open num_protect: %d", p_cfg->num_protect); 1971 if(p_scb->started) 1972 bta_av_str_stopped(p_scb, NULL); 1973 p_scb->started = FALSE; 1974 1975 /* drop the buffers queued in L2CAP */ 1976 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 1977 1978 AVDT_CloseReq(p_scb->avdt_handle); 1979 1980 } 1981} 1982 1983/******************************************************************************* 1984** 1985** Function bta_av_data_path 1986** 1987** Description Handle stream data path. 1988** 1989** Returns void 1990** 1991*******************************************************************************/ 1992void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1993{ 1994 BT_HDR *p_buf; 1995 UINT32 data_len; 1996 UINT32 timestamp; 1997 BOOLEAN new_buf = FALSE; 1998 UINT8 m_pt = 0x60 | p_scb->codec_type; 1999 tAVDT_DATA_OPT_MASK opt; 2000 2001 if (!p_scb->cong) 2002 { 2003 /* 2004 APPL_TRACE_ERROR1("q: %d", p_scb->l2c_bufs); 2005 */ 2006 //Always get the current number of bufs que'd up 2007 p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET); 2008 2009 p_buf = (BT_HDR *)GKI_dequeue (&p_scb->q_info.a2d); 2010 if(p_buf) 2011 { 2012 /* use q_info.a2d data, read the timestamp */ 2013 timestamp = *(UINT32 *)(p_buf + 1); 2014 } 2015 else 2016 { 2017 new_buf = TRUE; 2018 /* q_info.a2d empty, call co_data, dup data to other channels */ 2019 p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len, 2020 ×tamp); 2021 2022 if (p_buf) 2023 { 2024 /* use the offset area for the time stamp */ 2025 *(UINT32 *)(p_buf + 1) = timestamp; 2026 2027 /* dup the data to other channels */ 2028 bta_av_dup_audio_buf(p_scb, p_buf); 2029 } 2030 } 2031 2032 if(p_buf) 2033 { 2034 if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM)) 2035 { 2036 /* there's a buffer, just queue it to L2CAP */ 2037 /* There's no need to increment it here, it is always read from L2CAP see above */ 2038 /* p_scb->l2c_bufs++; */ 2039 /* 2040 APPL_TRACE_ERROR1("qw: %d", p_scb->l2c_bufs); 2041 */ 2042 2043 /* opt is a bit mask, it could have several options set */ 2044 opt = AVDT_DATA_OPT_NONE; 2045 if (p_scb->no_rtp_hdr) 2046 { 2047 opt |= AVDT_DATA_OPT_NO_RTP; 2048 } 2049 2050 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt); 2051 p_scb->cong = TRUE; 2052 } 2053 else 2054 { 2055 /* there's a buffer, but L2CAP does not seem to be moving data */ 2056 if(new_buf) 2057 { 2058 /* just got this buffer from co_data, 2059 * put it in queue */ 2060 GKI_enqueue(&p_scb->q_info.a2d, p_buf); 2061 } 2062 else 2063 { 2064 /* just dequeue it from the q_info.a2d */ 2065 if(p_scb->q_info.a2d.count < 3) 2066 { 2067 /* put it back to the queue */ 2068 GKI_enqueue_head (&p_scb->q_info.a2d, p_buf); 2069 } 2070 else 2071 { 2072 /* too many buffers in q_info.a2d, drop it. */ 2073 bta_av_co_audio_drop(p_scb->hndl); 2074 GKI_freebuf(p_buf); 2075 } 2076 } 2077 } 2078 } 2079 } 2080} 2081 2082/******************************************************************************* 2083** 2084** Function bta_av_start_ok 2085** 2086** Description Stream started. 2087** 2088** Returns void 2089** 2090*******************************************************************************/ 2091void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2092{ 2093 tBTA_AV_START start; 2094 tBTA_AV_API_STOP stop; 2095 BOOLEAN initiator = FALSE; 2096 BOOLEAN suspend = FALSE; 2097 UINT16 flush_to; 2098 UINT8 new_role = p_scb->role; 2099 BT_HDR hdr; 2100 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 2101 UINT8 cur_role; 2102 2103 APPL_TRACE_DEBUG2("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role); 2104 2105 p_scb->started = TRUE; 2106 if (p_scb->sco_suspend) 2107 { 2108 p_scb->sco_suspend = FALSE; 2109 } 2110 2111 if (new_role & BTA_AV_ROLE_START_INT) 2112 initiator = TRUE; 2113 2114 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED) 2115 { 2116 /* role switch has failed */ 2117 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED; 2118 p_data = (tBTA_AV_DATA *)&hdr; 2119 hdr.offset = BTA_AV_RS_FAIL; 2120 } 2121 APPL_TRACE_DEBUG1("wait:x%x", p_scb->wait); 2122 2123 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE)) 2124 { 2125 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 2126 if (p_data->hdr.offset == BTA_AV_RS_FAIL) 2127 { 2128 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 2129 start.chnl = p_scb->chnl; 2130 start.status = BTA_AV_FAIL_ROLE; 2131 start.hndl = p_scb->hndl; 2132 start.initiator = initiator; 2133 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 2134 return; 2135 } 2136 } 2137 2138 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT)) 2139 p_scb->q_tag = BTA_AV_Q_TAG_START; 2140 else 2141 { 2142 /* The wait flag may be set here while we are already master on the link */ 2143 /* this could happen if a role switch complete event occurred during reconfig */ 2144 /* if we are now master on the link, there is no need to wait for the role switch, */ 2145 /* complete anymore so we can clear the wait for role switch flag */ 2146 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 2147 } 2148 2149 if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START)) 2150 { 2151 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED; 2152 p_scb->q_tag = BTA_AV_Q_TAG_START; 2153 } 2154 2155 if (p_scb->wait & BTA_AV_WAIT_ACP_CAPS_ON) 2156 { 2157 p_scb->wait |= BTA_AV_WAIT_ACP_CAPS_STARTED; 2158 } 2159 2160 if (p_scb->wait) 2161 { 2162 APPL_TRACE_DEBUG2("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag); 2163 return; 2164 } 2165 2166 /* tell role manager to check M/S role */ 2167 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 2168 2169 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 2170 2171 if(p_scb->media_type == AVDT_MEDIA_AUDIO) 2172 { 2173 /* in normal logic, conns should be bta_av_cb.audio_count - 1, 2174 * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet. 2175 * If the code were to be re-arranged for some reasons, this number may need to be changed 2176 */ 2177 p_scb->co_started = bta_av_cb.audio_open_cnt; 2178 flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1]; 2179 } 2180 else 2181 { 2182 flush_to = p_bta_av_cfg->video_flush_to; 2183 } 2184 L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to ); 2185 2186 /* clear the congestion flag */ 2187 p_scb->cong = FALSE; 2188 2189 if (new_role & BTA_AV_ROLE_START_INT) 2190 { 2191 new_role &= ~BTA_AV_ROLE_START_INT; 2192 } 2193 else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT)) 2194 { 2195 suspend = TRUE; 2196 } 2197 2198 if (!suspend) 2199 { 2200 p_scb->q_tag = BTA_AV_Q_TAG_STREAM; 2201 bta_av_stream_chg(p_scb, TRUE); 2202 } 2203 2204 { 2205 /* If sink starts stream, disable sniff mode here */ 2206 if (!initiator) 2207 { 2208 /* If souce is the master role, disable role switch during streaming. 2209 * Otherwise allow role switch, if source is slave. 2210 * Because it would not hurt source, if the peer device wants source to be master */ 2211 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) && 2212 (cur_role == BTM_ROLE_MASTER) ) 2213 { 2214 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 2215 } 2216 2217 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr); 2218 } 2219 2220 p_scb->role = new_role; 2221 p_scb->role &= ~BTA_AV_ROLE_AD_ACP; 2222 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT; 2223 2224 p_scb->no_rtp_hdr = FALSE; 2225 p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type, p_scb->cfg.codec_info, &p_scb->no_rtp_hdr); 2226 p_scb->co_started = TRUE; 2227 2228 APPL_TRACE_DEBUG3("bta_av_start_ok suspending: %d, role:x%x, init %d", 2229 suspend, p_scb->role, initiator); 2230 2231 start.suspending = suspend; 2232 start.initiator = initiator; 2233 start.chnl = p_scb->chnl; 2234 start.status = BTA_AV_SUCCESS; 2235 start.hndl = p_scb->hndl; 2236 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 2237 2238 if(suspend) 2239 { 2240 p_scb->role |= BTA_AV_ROLE_SUSPEND; 2241 p_scb->cong = TRUE; /* do not allow the media data to go through */ 2242 /* do not duplicate the media packets to this channel */ 2243 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); 2244 p_scb->co_started = FALSE; 2245 stop.flush = FALSE; 2246 stop.suspend = TRUE; 2247 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop); 2248 } 2249 } 2250} 2251 2252/******************************************************************************* 2253** 2254** Function bta_av_start_failed 2255** 2256** Description Stream start failed. 2257** 2258** Returns void 2259** 2260*******************************************************************************/ 2261void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2262{ 2263 if(p_scb->started == FALSE && p_scb->co_started == FALSE) 2264 { 2265 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 2266 notify_start_failed(p_scb); 2267 } 2268 2269 bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr); 2270 p_scb->sco_suspend = FALSE; 2271} 2272 2273/******************************************************************************* 2274** 2275** Function bta_av_str_closed 2276** 2277** Description Stream closed. 2278** 2279** Returns void 2280** 2281*******************************************************************************/ 2282void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2283{ 2284 tBTA_AV data; 2285 tBTA_AV_EVT event; 2286 UINT16 mtu; 2287 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 2288 2289 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) 2290 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 2291 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); 2292 if (bta_av_cb.audio_open_cnt <= 1) 2293 { 2294 /* last connection - restore the allow switch flag */ 2295 L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH); 2296 } 2297 2298 if (p_scb->open_status) 2299 { 2300 /* must be failure when opening the stream */ 2301 bdcpy(data.open.bd_addr, p_scb->peer_addr); 2302 data.open.status = p_scb->open_status; 2303 data.open.chnl = p_scb->chnl; 2304 data.open.hndl = p_scb->hndl; 2305 event = BTA_AV_OPEN_EVT; 2306 p_scb->open_status = BTA_AV_SUCCESS; 2307 2308 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 2309 bta_av_cleanup(p_scb, p_data); 2310 (*bta_av_cb.p_cback)(event, &data); 2311 } 2312 else 2313 { 2314 /* do stop if we were started */ 2315 if (p_scb->co_started) 2316 { 2317 bta_av_str_stopped(p_scb, NULL); 2318 } 2319 2320 /* Update common mtu shared by remaining connectons */ 2321 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU); 2322 2323 { 2324 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu); 2325 data.close.chnl = p_scb->chnl; 2326 data.close.hndl = p_scb->hndl; 2327 event = BTA_AV_CLOSE_EVT; 2328 2329 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 2330 bta_av_cleanup(p_scb, p_data); 2331 (*bta_av_cb.p_cback)(event, &data); 2332 } 2333 } 2334} 2335 2336/******************************************************************************* 2337** 2338** Function bta_av_clr_cong 2339** 2340** Description Clear stream congestion flag. 2341** 2342** Returns void 2343** 2344*******************************************************************************/ 2345void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2346{ 2347 if(p_scb->co_started) 2348 p_scb->cong = FALSE; 2349} 2350 2351/******************************************************************************* 2352** 2353** Function bta_av_suspend_cfm 2354** 2355** Description process the suspend response 2356** 2357** Returns void 2358** 2359*******************************************************************************/ 2360void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2361{ 2362 tBTA_AV_SUSPEND suspend_rsp; 2363 UINT8 err_code = p_data->str_msg.msg.hdr.err_code; 2364 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 2365 2366 APPL_TRACE_DEBUG2 ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d", 2367 bta_av_cb.audio_open_cnt, err_code); 2368 2369 if (p_scb->started == FALSE) 2370 { 2371 /* handle the condition where there is a collision of SUSPEND req from either side 2372 ** Second SUSPEND req could be rejected. Do not treat this as a failure 2373 */ 2374 APPL_TRACE_WARNING1("bta_av_suspend_cfm: already suspended, ignore, err_code %d", 2375 err_code); 2376 return; 2377 } 2378 2379 suspend_rsp.status = BTA_AV_SUCCESS; 2380 if (err_code && (err_code != AVDT_ERR_BAD_STATE)) 2381 { 2382 /* Disable suspend feature only with explicit rejection(not with timeout) */ 2383 if (err_code != AVDT_ERR_TIMEOUT) 2384 { 2385 p_scb->suspend_sup = FALSE; 2386 } 2387 suspend_rsp.status = BTA_AV_FAIL; 2388 2389 APPL_TRACE_ERROR0 ("bta_av_suspend_cfm: suspend failed, closing connection"); 2390 2391 /* SUSPEND failed. Close connection. */ 2392 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL); 2393 } 2394 else 2395 { 2396 /* only set started to FALSE when suspend is successful */ 2397 p_scb->started = FALSE; 2398 } 2399 2400 if (p_scb->role & BTA_AV_ROLE_SUSPEND) 2401 { 2402 p_scb->role &= ~BTA_AV_ROLE_SUSPEND; 2403 p_scb->cong = FALSE; 2404 } 2405 2406 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 2407 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) 2408 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 2409 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); 2410 2411 /* in case that we received suspend_ind, we may need to call co_stop here */ 2412 if(p_scb->co_started) 2413 { 2414 bta_av_stream_chg(p_scb, FALSE); 2415 2416 { 2417 p_scb->co_started = FALSE; 2418 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); 2419 } 2420 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO); 2421 } 2422 2423 { 2424 suspend_rsp.chnl = p_scb->chnl; 2425 suspend_rsp.hndl = p_scb->hndl; 2426 suspend_rsp.initiator = p_data->str_msg.initiator; 2427 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp); 2428 } 2429} 2430 2431/******************************************************************************* 2432** 2433** Function bta_av_rcfg_str_ok 2434** 2435** Description report reconfigure successful 2436** 2437** Returns void 2438** 2439*******************************************************************************/ 2440void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2441{ 2442 tBTA_AV_RECONFIG evt; 2443 2444 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle); 2445 APPL_TRACE_DEBUG1("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid); 2446 2447 /* rc listen */ 2448 bta_av_st_rc_timer(p_scb, NULL); 2449 utl_freebuf((void **)&p_scb->p_cap); 2450 2451 /* No need to keep the role bits once reconfig is done. */ 2452 p_scb->role &= ~BTA_AV_ROLE_AD_ACP; 2453 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT; 2454 p_scb->role &= ~BTA_AV_ROLE_START_INT; 2455 2456 { 2457 /* reconfigure success */ 2458 evt.status = BTA_AV_SUCCESS; 2459 evt.chnl = p_scb->chnl; 2460 evt.hndl = p_scb->hndl; 2461 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 2462 } 2463} 2464 2465/******************************************************************************* 2466** 2467** Function bta_av_rcfg_failed 2468** 2469** Description process reconfigure failed 2470** 2471** Returns void 2472** 2473*******************************************************************************/ 2474void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2475{ 2476 tBTA_AV_RECONFIG evt; 2477 2478 APPL_TRACE_DEBUG2("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x", 2479 p_scb->num_recfg, bta_av_cb.conn_lcb); 2480 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) 2481 { 2482 bta_av_cco_close(p_scb, p_data); 2483 /* report failure */ 2484 evt.status = BTA_AV_FAIL_STREAM; 2485 evt.chnl = p_scb->chnl; 2486 evt.hndl = p_scb->hndl; 2487 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 2488 /* go to closing state */ 2489 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL); 2490 } 2491 else 2492 { 2493 /* open failed. try again */ 2494 p_scb->num_recfg++; 2495 if(bta_av_cb.conn_lcb) 2496 { 2497 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); 2498 } 2499 else 2500 { 2501 bta_av_connect_req(p_scb, NULL); 2502 } 2503 } 2504} 2505 2506/******************************************************************************* 2507** 2508** Function bta_av_rcfg_connect 2509** 2510** Description stream closed. reconnect the stream 2511** 2512** Returns void 2513** 2514*******************************************************************************/ 2515void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2516{ 2517 p_scb->cong = FALSE; 2518 p_scb->num_recfg++; 2519 APPL_TRACE_DEBUG1("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg); 2520 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) 2521 { 2522 /* let bta_av_rcfg_failed report fail */ 2523 bta_av_rcfg_failed(p_scb, NULL); 2524 } 2525 else 2526 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); 2527} 2528 2529/******************************************************************************* 2530** 2531** Function bta_av_rcfg_discntd 2532** 2533** Description AVDT disconnected. reconnect the stream 2534** 2535** Returns void 2536** 2537*******************************************************************************/ 2538void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2539{ 2540 tBTA_AV_RECONFIG evt; 2541 2542 APPL_TRACE_DEBUG1("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg); 2543 p_scb->num_recfg++; 2544 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) 2545 { 2546 /* report failure */ 2547 evt.status = BTA_AV_FAIL_STREAM; 2548 evt.chnl = p_scb->chnl; 2549 evt.hndl = p_scb->hndl; 2550 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 2551 /* report close event & go to init state */ 2552 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL); 2553 } 2554 else 2555 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); 2556} 2557 2558/******************************************************************************* 2559** 2560** Function bta_av_suspend_cont 2561** 2562** Description received the suspend response. 2563** continue to reconfigure the stream 2564** 2565** Returns void 2566** 2567*******************************************************************************/ 2568void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2569{ 2570 UINT8 err_code = p_data->str_msg.msg.hdr.err_code; 2571 tBTA_AV_RECONFIG evt; 2572 2573 p_scb->started = FALSE; 2574 p_scb->cong = FALSE; 2575 if (err_code) 2576 { 2577 if (AVDT_ERR_CONNECT == err_code) 2578 { 2579 /* report failure */ 2580 evt.status = BTA_AV_FAIL; 2581 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 2582 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL); 2583 } 2584 else 2585 { 2586 APPL_TRACE_ERROR0("suspend rejected, try close"); 2587 /* Disable suspend feature only with explicit rejection(not with timeout) */ 2588 if (err_code != AVDT_ERR_TIMEOUT) 2589 { 2590 p_scb->suspend_sup = FALSE; 2591 } 2592 /* drop the buffers queued in L2CAP */ 2593 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 2594 2595 AVDT_CloseReq(p_scb->avdt_handle); 2596 } 2597 } 2598 else 2599 { 2600 APPL_TRACE_DEBUG0("bta_av_suspend_cont calling AVDT_ReconfigReq"); 2601 /* reconfig the stream */ 2602 2603 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap); 2604 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; 2605 } 2606} 2607 2608/******************************************************************************* 2609** 2610** Function bta_av_rcfg_cfm 2611** 2612** Description if reconfigure is successful, report the event 2613** otherwise, close the stream. 2614** 2615** Returns void 2616** 2617*******************************************************************************/ 2618void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2619{ 2620 UINT8 err_code = p_data->str_msg.msg.hdr.err_code; 2621 2622 /* 2623 APPL_TRACE_DEBUG0("bta_av_rcfg_cfm"); 2624 */ 2625 if (err_code) 2626 { 2627 APPL_TRACE_ERROR0("reconfig rejected, try close"); 2628 /* Disable reconfiguration feature only with explicit rejection(not with timeout) */ 2629 if (err_code != AVDT_ERR_TIMEOUT) 2630 { 2631 p_scb->recfg_sup = FALSE; 2632 } 2633 /* started flag is FALSE when reconfigure command is sent */ 2634 /* drop the buffers queued in L2CAP */ 2635 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 2636 AVDT_CloseReq(p_scb->avdt_handle); 2637 } 2638 else 2639 { 2640 /* update the codec info after rcfg cfm */ 2641 memcpy(p_scb->cfg.codec_info,p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info,AVDT_CODEC_SIZE); 2642 /* take the SSM back to OPEN state */ 2643 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL); 2644 } 2645} 2646 2647/******************************************************************************* 2648** 2649** Function bta_av_rcfg_open 2650** 2651** Description AVDT is connected. open the stream with the new configuration 2652** 2653** Returns void 2654** 2655*******************************************************************************/ 2656void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2657{ 2658 APPL_TRACE_DEBUG1("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks); 2659 2660 if (p_scb->num_disc_snks == 0) 2661 { 2662 /* Need to update call-out module so that it will be ready for discover */ 2663 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); 2664 2665 /* send avdtp discover request */ 2666 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]); 2667 } 2668 else 2669 { 2670 p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX]; 2671 memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE); 2672 /* we may choose to use a different SEP at reconfig. 2673 * adjust the sep_idx now */ 2674 bta_av_adjust_seps_idx(p_scb); 2675 2676 /* open the stream with the new config */ 2677 p_scb->sep_info_idx = p_scb->rcfg_idx; 2678 AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr, 2679 p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap); 2680 } 2681 2682} 2683 2684/******************************************************************************* 2685** 2686** Function bta_av_security_rej 2687** 2688** Description Send an AVDTP security reject. 2689** 2690** Returns void 2691** 2692*******************************************************************************/ 2693void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2694{ 2695 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE, 2696 NULL, 0); 2697} 2698 2699/******************************************************************************* 2700** 2701** Function bta_av_chk_2nd_start 2702** 2703** Description check if this is 2nd stream and if it needs to be started. 2704** This function needs to be kept very similar to bta_av_chk_start 2705** 2706** Returns void 2707** 2708*******************************************************************************/ 2709void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2710{ 2711 tBTA_AV_SCB *p_scbi; 2712 int i; 2713 BOOLEAN new_started = FALSE; 2714 2715 2716 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2)) 2717 { 2718 /* more than one audio channel is connected */ 2719 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT)) 2720 { 2721 /* this channel does not need to be reconfigured. 2722 * if there is other channel streaming, start the stream now */ 2723 for(i=0; i<BTA_AV_NUM_STRS; i++) 2724 { 2725 p_scbi = bta_av_cb.p_scb[i]; 2726 if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started) 2727 { 2728 if (!new_started) 2729 { 2730 /* start the new stream */ 2731 new_started = TRUE; 2732 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL); 2733 } 2734 /* may need to update the flush timeout of this already started stream */ 2735 if (p_scbi->co_started != bta_av_cb.audio_open_cnt) 2736 { 2737 p_scbi->co_started = bta_av_cb.audio_open_cnt; 2738 L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] ); 2739 } 2740 } 2741 } 2742 } 2743 } 2744} 2745 2746/******************************************************************************* 2747** 2748** Function bta_av_open_rc 2749** 2750** Description Send a message to main SM to open RC channel. 2751** 2752** Returns void 2753** 2754*******************************************************************************/ 2755void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2756{ 2757 tBTA_AV_START start; 2758 2759 APPL_TRACE_DEBUG3("bta_av_open_rc use_rc: %d, wait: x%x role:x%x", p_scb->use_rc, p_scb->wait, p_scb->role); 2760 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START)) 2761 { 2762 /* waiting for role switch for some reason & the timer expires */ 2763 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT)) 2764 { 2765 APPL_TRACE_ERROR0 ("failed to start streaming for role management reasons!!"); 2766 bta_sys_stop_timer(&p_scb->timer); 2767 start.chnl = p_scb->chnl; 2768 start.status = BTA_AV_FAIL_ROLE; 2769 start.initiator = TRUE; 2770 start.hndl = p_scb->hndl; 2771 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 2772 bta_av_cb.rs_idx = 0; 2773 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 2774 } 2775 else 2776 { 2777 /* role switch is done. continue to start streaming */ 2778 bta_av_cb.rs_idx = 0; 2779 p_data->hdr.offset = BTA_AV_RS_OK; 2780 bta_av_start_ok (p_scb, p_data); 2781 } 2782 return; 2783 } 2784 2785 if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) ) 2786 { 2787 if(bta_av_cb.disc) 2788 { 2789 /* AVRC discover db is in use */ 2790 if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) 2791 { 2792 /* AVRC channel is not connected. delay a little bit */ 2793 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) 2794 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); 2795 else 2796 p_scb->wait |= BTA_AV_WAIT_CHECK_RC; 2797 } 2798 } 2799 else 2800 { 2801 /* use main SM for AVRC SDP activities */ 2802 bta_av_rc_disc((UINT8)(p_scb->hdi + 1)); 2803 } 2804 } 2805 else 2806 { 2807 if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle) 2808 { 2809 /* the open API said that this handle does not want a RC connection. 2810 * disconnect it now */ 2811 AVRC_Close(p_scb->rc_handle); 2812 } 2813 } 2814} 2815 2816/******************************************************************************* 2817** 2818** Function bta_av_open_at_inc 2819** 2820** Description This function is called if API open is called by application 2821** while state-machine is at incoming state. 2822** 2823** Returns void 2824** 2825*******************************************************************************/ 2826void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2827{ 2828 tBTA_AV_API_OPEN *p_buf; 2829 2830 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN)); 2831 2832 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) 2833 { 2834 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED; 2835 2836 /* API open will be handled at timeout if SNK did not start signalling. */ 2837 /* API open will be ignored if SNK starts signalling. */ 2838 } 2839 else 2840 { 2841 /* SNK did not start signalling, API was called N seconds timeout. */ 2842 /* We need to switch to INIT state and start opening connection. */ 2843 p_scb->coll_mask = 0; 2844 bta_av_set_scb_sst_init (p_scb); 2845 2846 if ((p_buf = (tBTA_AV_API_OPEN *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN))) != NULL) 2847 { 2848 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN)); 2849 bta_sys_sendmsg(p_buf); 2850 } 2851 } 2852} 2853 2854#endif /* BTA_AV_INCLUDED */ 2855