bta_av_aact.c revision 77d1cb6ff904b48ee85c09a06c5e05dd0ed049b9
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 bta_av_st_rc_timer 259** 260** Description start the AVRC timer if no RC connection & CT is supported & 261** RC is used or 262** as ACP (we do not really know if we want AVRC) 263** 264** Returns void 265** 266*******************************************************************************/ 267void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 268{ 269 270 APPL_TRACE_DEBUG2("bta_av_st_rc_timer rc_handle:%d, use_rc: %d", 271 p_scb->rc_handle, p_scb->use_rc); 272 /* for outgoing RC connection as INT/CT */ 273 if( (p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) && 274 /*(bta_av_cb.features & BTA_AV_FEAT_RCCT) &&*/ 275 (p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP)) ) 276 { 277 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) 278 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); 279 else 280 p_scb->wait |= BTA_AV_WAIT_CHECK_RC; 281 } 282 283} 284 285/******************************************************************************* 286** 287** Function bta_av_next_getcap 288** 289** Description The function gets the capabilities of the next available 290** stream found in the discovery results. 291** 292** Returns TRUE if we sent request to AVDT, FALSE otherwise. 293** 294*******************************************************************************/ 295static BOOLEAN bta_av_next_getcap(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 296{ 297 int i; 298 tAVDT_GETCAP_REQ *p_req; 299 BOOLEAN sent_cmd = FALSE; 300 301 for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++) 302 { 303 /* steam not in use, is a sink, and is the right media type (audio/video) */ 304 if ((p_scb->sep_info[i].in_use == FALSE) && 305 (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && 306 (p_scb->sep_info[i].media_type == p_scb->media_type)) 307 { 308 p_scb->sep_info_idx = i; 309 310 /* we got a stream; get its capabilities */ 311 if (p_scb->p_cap == NULL) 312 { 313 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG)); 314 } 315 if (p_scb->p_cap == NULL) 316 { 317 i = p_scb->num_seps; 318 break; 319 } 320 if (p_scb->avdt_version >= AVDT_VERSION_SYNC) 321 { 322 p_req = AVDT_GetAllCapReq; 323 } 324 else 325 { 326 p_req = AVDT_GetCapReq; 327 } 328 (*p_req)(p_scb->peer_addr, 329 p_scb->sep_info[i].seid, 330 p_scb->p_cap, bta_av_dt_cback[p_scb->hdi]); 331 sent_cmd = TRUE; 332 break; 333 } 334 } 335 336 /* if no streams available then stream open fails */ 337 if (!sent_cmd) 338 { 339 bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data); 340 } 341 342 return sent_cmd; 343 344} 345 346/******************************************************************************* 347** 348** Function bta_av_proc_stream_evt 349** 350** Description Utility function to compose stream events. 351** 352** Returns void 353** 354*******************************************************************************/ 355void bta_av_proc_stream_evt(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data, int index) 356{ 357 tBTA_AV_STR_MSG *p_msg; 358 UINT16 sec_len = 0; 359 tBTA_AV_SCB *p_scb = bta_av_cb.p_scb[index]; 360 int xx; 361 362 if (p_data) 363 { 364 if (event == AVDT_SECURITY_IND_EVT) 365 { 366 sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN) ? 367 p_data->security_ind.len : BTA_AV_SECURITY_MAX_LEN; 368 } 369 else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0) 370 { 371 sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN) ? 372 p_data->security_cfm.len : BTA_AV_SECURITY_MAX_LEN; 373 } 374 } 375 376 if (p_scb && (p_msg = (tBTA_AV_STR_MSG *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_STR_MSG) + sec_len))) != NULL) 377 { 378 379 /* copy event data, bd addr, and handle to event message buffer */ 380 p_msg->hdr.offset = 0; 381 382 if (bd_addr != NULL) 383 { 384 bdcpy(p_msg->bd_addr, bd_addr); 385 APPL_TRACE_DEBUG6(" bd_addr:%02x-%02x-%02x-%02x-%02x-%02x", 386 bd_addr[0], bd_addr[1], 387 bd_addr[2], bd_addr[3], 388 bd_addr[4], bd_addr[5]); 389 } 390 391 if (p_data != NULL) 392 { 393 memcpy(&p_msg->msg, p_data, sizeof (tAVDT_CTRL)); 394 /* copy config params to event message buffer */ 395 switch (event) 396 { 397 case AVDT_RECONFIG_CFM_EVT: 398 APPL_TRACE_DEBUG4("reconfig cfm event codec info = 0x%06x-%06x-%06x-%02x", 399 (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], 400 (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], 401 (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], 402 p_msg->msg.reconfig_cfm.p_cfg->codec_info[9]); 403 break; 404 405 406 407 case AVDT_CONFIG_IND_EVT: 408 /* We might have 2 SEP signallings(A2DP + VDP) with one peer device on one L2CAP. 409 * If we already have a signalling connection with the bd_addr and the streaming 410 * SST is at INIT state, change it to INCOMING state to handle the signalling 411 * from the 2nd SEP. */ 412 if ((bta_av_find_lcb(bd_addr, BTA_AV_LCB_FIND) != NULL) && (bta_av_is_scb_init(p_scb))) 413 { 414 bta_av_set_scb_sst_incoming (p_scb); 415 416 /* When ACP_CONNECT_EVT was received, we put first available scb to incoming state. 417 * Later when we receive AVDT_CONFIG_IND_EVT, we use a new p_scb and set its state to 418 * incoming which we do it above. 419 * We also have to set the old p_scb state to init to be used later */ 420 for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) 421 { 422 if ((bta_av_cb.p_scb[xx]) && (xx != index)) 423 { 424 if (bta_av_cb.p_scb[xx]->state == BTA_AV_INCOMING_SST) 425 { 426 bta_av_cb.p_scb[xx]->state = BTA_AV_INIT_SST; 427 bta_av_cb.p_scb[xx]->coll_mask = 0; 428 break; 429 } 430 } 431 } 432 } 433 434 memcpy(&p_msg->cfg, p_data->config_ind.p_cfg, sizeof(tAVDT_CFG)); 435 break; 436 437 case AVDT_SECURITY_IND_EVT: 438 p_msg->msg.security_ind.p_data = (UINT8 *) (p_msg + 1); 439 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data, sec_len); 440 break; 441 442 case AVDT_SECURITY_CFM_EVT: 443 p_msg->msg.security_cfm.p_data = (UINT8 *) (p_msg + 1); 444 if (p_data->hdr.err_code == 0) 445 { 446 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data, sec_len); 447 } 448 break; 449 case AVDT_SUSPEND_IND_EVT: 450 p_msg->msg.hdr.err_code = 0; 451 break; 452 453 default: 454 break; 455 } 456 } 457 else 458 p_msg->msg.hdr.err_code = 0; 459 460 /* look up application event */ 461 if ((p_data == NULL) || (p_data->hdr.err_code == 0)) 462 { 463 p_msg->hdr.event = bta_av_stream_evt_ok[event]; 464 } 465 else 466 { 467 p_msg->hdr.event = bta_av_stream_evt_fail[event]; 468 } 469 470 p_msg->initiator = FALSE; 471 if (event == AVDT_SUSPEND_CFM_EVT) 472 p_msg->initiator = TRUE; 473 474 APPL_TRACE_VERBOSE1("hndl:x%x", p_scb->hndl); 475 p_msg->hdr.layer_specific = p_scb->hndl; 476 p_msg->handle = handle; 477 p_msg->avdt_event = event; 478 bta_sys_sendmsg(p_msg); 479 } 480 481/* coverity[var_deref_model] */ 482/* false-positive: bta_av_conn_cback only processes AVDT_CONNECT_IND_EVT and AVDT_DISCONNECT_IND_EVT event 483 * these 2 events always have associated p_data */ 484 bta_av_conn_cback(handle, bd_addr, event, p_data); 485} 486 487/******************************************************************************* 488** 489** Function bta_av_stream0_cback 490** 491** Description This is the AVDTP callback function for stream events. 492** 493** Returns void 494** 495*******************************************************************************/ 496static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 497{ 498 APPL_TRACE_VERBOSE2("bta_av_stream0_cback avdt_handle: %d event=0x%x", handle, event); 499 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 0); 500} 501 502/******************************************************************************* 503** 504** Function bta_av_stream1_cback 505** 506** Description This is the AVDTP callback function for stream events. 507** 508** Returns void 509** 510*******************************************************************************/ 511static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 512{ 513 APPL_TRACE_EVENT2("bta_av_stream1_cback avdt_handle: %d event=0x%x", handle, event); 514 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 1); 515} 516 517#if BTA_AV_NUM_STRS > 2 518/******************************************************************************* 519** 520** Function bta_av_stream2_cback 521** 522** Description This is the AVDTP callback function for stream events. 523** 524** Returns void 525** 526*******************************************************************************/ 527static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 528{ 529 APPL_TRACE_EVENT2("bta_av_stream2_cback avdt_handle: %d event=0x%x", handle, event); 530 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 2); 531} 532#endif 533 534#if BTA_AV_NUM_STRS > 3 535/******************************************************************************* 536** 537** Function bta_av_stream3_cback 538** 539** Description This is the AVDTP callback function for stream events. 540** 541** Returns void 542** 543*******************************************************************************/ 544static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 545{ 546 APPL_TRACE_EVENT2("bta_av_stream3_cback avdt_handle: %d event=0x%x", handle, event); 547 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 3); 548} 549#endif 550 551/******************************************************************************* 552** 553** Function bta_av_stream4_cback 554** 555** Description This is the AVDTP callback function for stream events. 556** 557** Returns void 558** 559*******************************************************************************/ 560#if BTA_AV_NUM_STRS > 4 561static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 562{ 563 APPL_TRACE_EVENT2("bta_av_stream4_cback avdt_handle: %d event=0x%x", handle, event); 564 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 4); 565} 566#endif 567 568/******************************************************************************* 569** 570** Function bta_av_stream5_cback 571** 572** Description This is the AVDTP callback function for stream events. 573** 574** Returns void 575** 576*******************************************************************************/ 577#if BTA_AV_NUM_STRS > 5 578static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) 579{ 580 APPL_TRACE_EVENT2("bta_av_stream5_cback avdt_handle: %d event=0x%x", handle, event); 581 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 5); 582} 583#endif 584 585/******************************************************************************* 586** 587** Function bta_av_a2d_sdp_cback 588** 589** Description A2DP service discovery callback. 590** 591** Returns void 592** 593*******************************************************************************/ 594static void bta_av_a2d_sdp_cback(BOOLEAN found, tA2D_Service *p_service) 595{ 596 tBTA_AV_SDP_RES *p_msg; 597 tBTA_AV_SCB *p_scb; 598 599 if ((p_msg = (tBTA_AV_SDP_RES *) GKI_getbuf(sizeof(tBTA_AV_SDP_RES))) != NULL) 600 { 601 p_msg->hdr.event = (found) ? BTA_AV_SDP_DISC_OK_EVT : BTA_AV_SDP_DISC_FAIL_EVT; 602 603 p_scb = bta_av_hndl_to_scb(bta_av_cb.handle); 604 if (p_scb) 605 { 606 if (found && (p_service != NULL)) 607 p_scb->avdt_version = p_service->avdt_version; 608 else 609 p_scb->avdt_version = 0x00; 610 611 p_msg->hdr.layer_specific = bta_av_cb.handle; 612 bta_sys_sendmsg(p_msg); 613 } 614 else 615 { 616 APPL_TRACE_ERROR1 ("bta_av_a2d_sdp_cback, no scb found for handle(0x%x)", bta_av_cb.handle); 617 } 618 } 619} 620 621/******************************************************************************* 622** 623** Function bta_av_adjust_seps_idx 624** 625** Description adjust the sep_idx 626** 627** Returns 628** 629*******************************************************************************/ 630static void bta_av_adjust_seps_idx(tBTA_AV_SCB *p_scb) 631{ 632 int xx; 633 634 APPL_TRACE_DEBUG1("bta_av_adjust_seps_idx codec_type: %d", p_scb->codec_type); 635 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++) 636 { 637 APPL_TRACE_DEBUG2("av_handle: %d codec_type: %d", 638 p_scb->seps[xx].av_handle, p_scb->seps[xx].codec_type); 639 if(p_scb->seps[xx].av_handle && p_scb->codec_type == p_scb->seps[xx].codec_type) 640 { 641 p_scb->sep_idx = xx; 642 p_scb->avdt_handle = p_scb->seps[xx].av_handle; 643 break; 644 } 645 } 646} 647 648/******************************************************************************* 649** 650** Function bta_av_switch_role 651** 652** Description Switch role was not started and a timer was started. 653** another attempt to switch role now - still opening. 654** 655** Returns void 656** 657*******************************************************************************/ 658void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 659{ 660 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE; 661 tBTA_AV_API_OPEN *p_buf = &p_scb->q_info.open; 662 663 APPL_TRACE_DEBUG1("bta_av_switch_role wait:x%x", p_scb->wait); 664 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START) 665 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY; 666 667 /* clear the masks set when the timer is started */ 668 p_scb->wait &= ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START); 669 670 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) 671 { 672 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) 673 { 674 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; 675 } 676 else 677 { 678 /* this should not happen in theory. Just in case... 679 * continue to do_disc_a2d */ 680 switch_res = BTA_AV_RS_DONE; 681 } 682 } 683 else 684 { 685 /* report failure on OPEN */ 686 switch_res = BTA_AV_RS_FAIL; 687 } 688 689 if (switch_res != BTA_AV_RS_NONE) 690 { 691 if (bta_av_cb.rs_idx == (p_scb->hdi + 1)) 692 { 693 bta_av_cb.rs_idx = 0; 694 } 695 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY; 696 p_scb->q_tag = 0; 697 p_buf->switch_res = switch_res; 698 bta_av_do_disc_a2d(p_scb, (tBTA_AV_DATA *)p_buf); 699 } 700} 701 702/******************************************************************************* 703** 704** Function bta_av_role_res 705** 706** Description Handle the role changed event 707** 708** 709** Returns void 710** 711*******************************************************************************/ 712void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 713{ 714 BOOLEAN initiator = FALSE; 715 tBTA_AV_START start; 716 tBTA_AV_OPEN av_open; 717 718 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); 719 if (p_scb->role & BTA_AV_ROLE_START_INT) 720 initiator = TRUE; 721 722 if (p_scb->q_tag == BTA_AV_Q_TAG_START) 723 { 724 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED) 725 { 726 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 727 if (p_data->role_res.hci_status != HCI_SUCCESS) 728 { 729 p_scb->role &= ~BTA_AV_ROLE_START_INT; 730 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 731 /* start failed because of role switch. */ 732 start.chnl = p_scb->chnl; 733 start.status = BTA_AV_FAIL_ROLE; 734 start.hndl = p_scb->hndl; 735 start.initiator = initiator; 736 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 737 } 738 else 739 { 740 bta_av_start_ok(p_scb, p_data); 741 } 742 } 743 else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START) 744 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED; 745 } 746 else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) 747 { 748 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN) 749 { 750 p_scb->role &= ~BTA_AV_ROLE_START_INT; 751 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 752 753 if (p_data->role_res.hci_status != HCI_SUCCESS) 754 { 755 /* Open failed because of role switch. */ 756 bdcpy(av_open.bd_addr, p_scb->peer_addr); 757 av_open.chnl = p_scb->chnl; 758 av_open.hndl = p_scb->hndl; 759 start.status = BTA_AV_FAIL_ROLE; 760 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *)&av_open); 761 } 762 else 763 { 764 /* Continue av open process */ 765 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE; 766 bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open)); 767 } 768 } 769 else 770 { 771 APPL_TRACE_WARNING2 ("Unexpected role switch event: q_tag = %d wait = %d", p_scb->q_tag, p_scb->wait); 772 } 773 } 774 775 APPL_TRACE_DEBUG2("wait:x%x, role:x%x", p_scb->wait, p_scb->role); 776} 777 778/******************************************************************************* 779** 780** Function bta_av_delay_co 781** 782** Description Call the delay call-out function to report the delay report 783** from SNK 784** 785** Returns void 786** 787*******************************************************************************/ 788void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 789{ 790 p_scb->p_cos->delay(p_scb->hndl, p_data->str_msg.msg.delay_rpt_cmd.delay); 791} 792 793/******************************************************************************* 794** 795** Function bta_av_do_disc_a2d 796** 797** Description Do service discovery for A2DP. 798** 799** Returns void 800** 801*******************************************************************************/ 802void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 803{ 804 BOOLEAN ok_continue = FALSE; 805 tA2D_SDP_DB_PARAMS db_params; 806 UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, 807 ATTR_ID_PROTOCOL_DESC_LIST, 808 ATTR_ID_BT_PROFILE_DESC_LIST}; 809 810 APPL_TRACE_DEBUG3("bta_av_do_disc_a2d use_rc: %d rs:%d, oc:%d", 811 p_data->api_open.use_rc, p_data->api_open.switch_res, bta_av_cb.audio_open_cnt); 812 813 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN)); 814 815 switch(p_data->api_open.switch_res) 816 { 817 case BTA_AV_RS_NONE: 818 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) 819 { 820 /* waiting for role switch result. save the api to control block */ 821 memcpy(&p_scb->q_info.open, &p_data->api_open, sizeof(tBTA_AV_API_OPEN)); 822 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; 823 p_scb->q_tag = BTA_AV_Q_TAG_OPEN; 824 } 825 else 826 { 827 ok_continue = TRUE; 828 } 829 break; 830 831 case BTA_AV_RS_FAIL: 832 /* report a new failure event */ 833 p_scb->open_status = BTA_AV_FAIL_ROLE; 834 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL); 835 break; 836 837 case BTA_AV_RS_OK: 838 p_data = (tBTA_AV_DATA *)&p_scb->q_info.open; 839 /* continue to open if link role is ok */ 840 if (bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) 841 { 842 ok_continue = TRUE; 843 } 844 else 845 { 846 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; 847 } 848 break; 849 850 case BTA_AV_RS_DONE: 851 ok_continue = TRUE; 852 break; 853 } 854 855 APPL_TRACE_DEBUG3("ok_continue: %d wait:x%x, q_tag: %d", ok_continue, p_scb->wait, p_scb->q_tag); 856 if (!ok_continue) 857 return; 858 859 /* clear the role switch bits */ 860 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 861 862 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC) 863 { 864 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC; 865 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); 866 } 867 868 if (bta_av_cb.features & BTA_AV_FEAT_MASTER) 869 { 870 L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH); 871 872 if (bta_av_cb.audio_open_cnt == 1) 873 { 874 /* there's already an A2DP connection. do not allow switch */ 875 bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH); 876 } 877 } 878 /* store peer addr other parameters */ 879 bta_av_save_addr(p_scb, p_data->api_open.bd_addr); 880 p_scb->sec_mask = p_data->api_open.sec_mask; 881 p_scb->use_rc = p_data->api_open.use_rc; 882 883 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 884 885 /* allocate discovery database */ 886 if (p_scb->p_disc_db == NULL) 887 { 888 p_scb->p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(BTA_AV_DISC_BUF_SIZE); 889 } 890 891 /* only one A2D find service is active at a time */ 892 bta_av_cb.handle = p_scb->hndl; 893 894 if(p_scb->p_disc_db) 895 { 896 /* set up parameters */ 897 db_params.db_len = BTA_AV_DISC_BUF_SIZE; 898 db_params.num_attr = 3; 899 db_params.p_db = p_scb->p_disc_db; 900 db_params.p_attrs = attr_list; 901 902 if(A2D_FindService(UUID_SERVCLASS_AUDIO_SINK, p_scb->peer_addr, &db_params, 903 bta_av_a2d_sdp_cback) == A2D_SUCCESS) 904 { 905 return; 906 } 907 } 908 909 /* when the code reaches here, either the DB is NULL 910 * or A2D_FindService is not successful */ 911 bta_av_a2d_sdp_cback(FALSE, NULL); 912} 913 914/******************************************************************************* 915** 916** Function bta_av_cleanup 917** 918** Description cleanup AV stream control block. 919** 920** Returns void 921** 922*******************************************************************************/ 923void bta_av_cleanup(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 924{ 925 tBTA_AV_CONN_CHG msg; 926 int xx; 927 UINT8 role = BTA_AV_ROLE_AD_INT; 928 929 APPL_TRACE_DEBUG0("bta_av_cleanup"); 930 931 /* free any buffers */ 932 utl_freebuf((void **) &p_scb->p_cap); 933 utl_freebuf((void **) &p_scb->p_disc_db); 934 p_scb->avdt_version = 0; 935 936 /* initialize some control block variables */ 937 p_scb->open_status = BTA_AV_SUCCESS; 938 939 /* if de-registering shut everything down */ 940 msg.hdr.layer_specific = p_scb->hndl; 941 p_scb->started = FALSE; 942 p_scb->cong = FALSE; 943 p_scb->role = role; 944 p_scb->cur_psc_mask = 0; 945 p_scb->wait = 0; 946 p_scb->num_disc_snks = 0; 947 bta_sys_stop_timer(&p_scb->timer); 948 if (p_scb->deregistring) 949 { 950 /* remove stream */ 951 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++) 952 { 953 if(p_scb->seps[xx].av_handle) 954 AVDT_RemoveStream(p_scb->seps[xx].av_handle); 955 p_scb->seps[xx].av_handle = 0; 956 } 957 958 bta_av_dereg_comp((tBTA_AV_DATA *) &msg); 959 } 960 else 961 { 962 /* report stream closed to main SM */ 963 msg.is_up = FALSE; 964 bdcpy(msg.peer_addr, p_scb->peer_addr); 965 bta_av_conn_chg((tBTA_AV_DATA *) &msg); 966 } 967} 968 969/******************************************************************************* 970** 971** Function bta_av_free_sdb 972** 973** Description Free service discovery db buffer. 974** 975** Returns void 976** 977*******************************************************************************/ 978void bta_av_free_sdb(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 979{ 980 utl_freebuf((void **) &p_scb->p_disc_db); 981} 982 983/******************************************************************************* 984** 985** Function bta_av_config_ind 986** 987** Description Handle a stream configuration indication from the peer. 988** 989** Returns void 990** 991*******************************************************************************/ 992void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 993{ 994 tBTA_AV_CI_SETCONFIG setconfig; 995 tAVDT_SEP_INFO *p_info; 996 tAVDT_CFG *p_evt_cfg = &p_data->str_msg.cfg; 997 UINT8 psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask); 998 999 p_scb->avdt_label = p_data->str_msg.msg.hdr.label; 1000 memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE); 1001 p_scb->codec_type = p_evt_cfg->codec_info[BTA_AV_CODEC_TYPE_IDX]; 1002 bta_av_save_addr(p_scb, p_data->str_msg.bd_addr); 1003 1004 /* Clear collision mask */ 1005 p_scb->coll_mask = 0; 1006 bta_sys_stop_timer(&bta_av_cb.acp_sig_tmr); 1007 1008 /* if no codec parameters in configuration, fail */ 1009 if ((p_evt_cfg->num_codec == 0) || 1010 /* or the peer requests for a service we do not support */ 1011 ((psc_mask != p_scb->cfg.psc_mask) && 1012 (psc_mask != (p_scb->cfg.psc_mask&~AVDT_PSC_DELAY_RPT))) ) 1013 { 1014 setconfig.hndl = p_scb->hndl; /* we may not need this */ 1015 setconfig.err_code = AVDT_ERR_UNSUP_CFG; 1016 bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT, (tBTA_AV_DATA *) &setconfig); 1017 } 1018 else 1019 { 1020 p_info = &p_scb->sep_info[0]; 1021 p_info->in_use = 0; 1022 p_info->media_type = p_scb->media_type; 1023 p_info->seid = p_data->str_msg.msg.config_ind.int_seid; 1024 p_info->tsep = AVDT_TSEP_SNK; 1025 p_scb->role |= BTA_AV_ROLE_AD_ACP; 1026 p_scb->cur_psc_mask = p_evt_cfg->psc_mask; 1027 if (bta_av_cb.features & BTA_AV_FEAT_RCTG) 1028 p_scb->use_rc = TRUE; 1029 else 1030 p_scb->use_rc = FALSE; 1031 1032 p_scb->num_seps = 1; 1033 p_scb->sep_info_idx = 0; 1034 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); 1035 1036 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type, 1037 p_evt_cfg->codec_info, 1038 p_info->seid, 1039 p_scb->peer_addr, 1040 p_evt_cfg->num_protect, 1041 p_evt_cfg->protect_info); 1042 } 1043} 1044 1045/******************************************************************************* 1046** 1047** Function bta_av_disconnect_req 1048** 1049** Description Disconnect AVDTP connection. 1050** 1051** Returns void 1052** 1053*******************************************************************************/ 1054void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1055{ 1056 tBTA_AV_RCB *p_rcb; 1057 APPL_TRACE_DEBUG1("bta_av_disconnect_req conn_lcb: 0x%x", bta_av_cb.conn_lcb); 1058 1059 bta_sys_stop_timer(&bta_av_cb.sig_tmr); 1060 bta_sys_stop_timer(&p_scb->timer); 1061 if(bta_av_cb.conn_lcb) 1062 { 1063 p_rcb = bta_av_get_rcb_by_shdl((UINT8)(p_scb->hdi + 1)); 1064 if (p_rcb) 1065 bta_av_del_rc(p_rcb); 1066 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); 1067 } 1068 else 1069 { 1070 bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL); 1071 } 1072} 1073 1074/******************************************************************************* 1075** 1076** Function bta_av_security_req 1077** 1078** Description Send an AVDTP security request. 1079** 1080** Returns void 1081** 1082*******************************************************************************/ 1083void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1084{ 1085 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) 1086 { 1087 AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data, 1088 p_data->api_protect_req.len); 1089 } 1090} 1091 1092/******************************************************************************* 1093** 1094** Function bta_av_security_rsp 1095** 1096** Description Send an AVDTP security response. 1097** 1098** Returns void 1099** 1100*******************************************************************************/ 1101void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1102{ 1103 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) 1104 { 1105 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->api_protect_rsp.error_code, 1106 p_data->api_protect_rsp.p_data, p_data->api_protect_rsp.len); 1107 } 1108 else 1109 { 1110 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, 1111 NULL, 0); 1112 } 1113} 1114 1115/******************************************************************************* 1116** 1117** Function bta_av_setconfig_rsp 1118** 1119** Description setconfig is OK 1120** 1121** Returns void 1122** 1123*******************************************************************************/ 1124void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1125{ 1126 UINT8 num = p_data->ci_setconfig.num_seid + 1; 1127 UINT8 *p_seid = p_data->ci_setconfig.p_seid; 1128 int i; 1129 1130 /* we like this codec_type. find the sep_idx */ 1131 bta_av_adjust_seps_idx(p_scb); 1132 APPL_TRACE_DEBUG2("bta_av_setconfig_rsp: sep_idx: %d cur_psc_mask:0x%x", p_scb->sep_idx, p_scb->cur_psc_mask); 1133 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->ci_setconfig.err_code, 1134 p_data->ci_setconfig.category); 1135 1136 bta_sys_stop_timer(&bta_av_cb.sig_tmr); 1137 1138 if(p_data->ci_setconfig.err_code == AVDT_SUCCESS) 1139 { 1140 p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON; 1141 if(p_data->ci_setconfig.recfg_needed) 1142 p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT; 1143 APPL_TRACE_ERROR3("bta_av_setconfig_rsp recfg_needed:%d role:x%x num:%d", 1144 p_data->ci_setconfig.recfg_needed, p_scb->role, num); 1145 /* callout module tells BTA the number of "good" SEPs and their SEIDs. 1146 * getcap on these SEID */ 1147 p_scb->num_seps = num; 1148 1149 if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT) 1150 p_scb->avdt_version = AVDT_VERSION_SYNC; 1151 1152 1153 if (p_scb->codec_type == BTA_AV_CODEC_SBC || num > 1) 1154 { 1155 /* if SBC is used by the SNK as INT, discover req is not sent in bta_av_config_ind. 1156 * call disc_res now */ 1157 p_scb->p_cos->disc_res(p_scb->hndl, num, num, p_scb->peer_addr); 1158 } 1159 else 1160 { 1161 /* we do not know the peer device and it is using non-SBC codec 1162 * we need to know all the SEPs on SNK */ 1163 bta_av_discover_req(p_scb, NULL); 1164 return; 1165 } 1166 1167 for (i = 1; i < num; i++) 1168 { 1169 APPL_TRACE_DEBUG2("sep_info[%d] SEID: %d", i, p_seid[i-1]); 1170 /* initialize the sep_info[] to get capabilities */ 1171 p_scb->sep_info[i].in_use = FALSE; 1172 p_scb->sep_info[i].tsep = AVDT_TSEP_SNK; 1173 p_scb->sep_info[i].media_type = p_scb->media_type; 1174 p_scb->sep_info[i].seid = p_seid[i-1]; 1175 } 1176 bta_av_next_getcap(p_scb, p_data); 1177 } 1178} 1179 1180/******************************************************************************* 1181** 1182** Function bta_av_str_opened 1183** 1184** Description Stream opened OK (incoming/outgoing). 1185** 1186** Returns void 1187** 1188*******************************************************************************/ 1189void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1190{ 1191 tBTA_AV_CONN_CHG msg; 1192 tBTA_AV_OPEN open; 1193 UINT8 *p; 1194 UINT16 mtu; 1195 1196 msg.hdr.layer_specific = p_scb->hndl; 1197 msg.is_up = TRUE; 1198 bdcpy(msg.peer_addr, p_scb->peer_addr); 1199 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle); 1200 bta_av_conn_chg((tBTA_AV_DATA *) &msg); 1201 /* set the congestion flag, so AV would not send media packets by accident */ 1202 p_scb->cong = TRUE; 1203 1204 1205 p_scb->stream_mtu = p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE; 1206 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu); 1207 APPL_TRACE_DEBUG3("bta_av_str_opened l2c_cid: 0x%x stream_mtu: %d mtu: %d", 1208 p_scb->l2c_cid, p_scb->stream_mtu, mtu); 1209 if(mtu == 0 || mtu > p_scb->stream_mtu) 1210 mtu = p_scb->stream_mtu; 1211 1212 /* Set the media channel as medium priority */ 1213 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_MEDIUM); 1214 L2CA_SetChnlFlushability (p_scb->l2c_cid, TRUE); 1215 1216 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 1217 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO)); 1218 1219 p_scb->l2c_bufs = 0; 1220 p_scb->p_cos->open(p_scb->hndl, 1221 p_scb->codec_type, p_scb->cfg.codec_info, mtu); 1222 1223 { 1224 /* TODO check if other audio channel is open. 1225 * If yes, check if reconfig is needed 1226 * Rigt now we do not do this kind of checking. 1227 * BTA-AV is INT for 2nd audio connection. 1228 * The application needs to make sure the current codec_info is proper. 1229 * If one audio connection is open and another SNK attempts to connect to AV, 1230 * the connection will be rejected. 1231 */ 1232 /* check if other audio channel is started. If yes, start */ 1233 bdcpy(open.bd_addr, p_scb->peer_addr); 1234 open.chnl = p_scb->chnl; 1235 open.hndl = p_scb->hndl; 1236 open.status = BTA_AV_SUCCESS; 1237 open.starting = bta_av_chk_start(p_scb); 1238 open.edr = 0; 1239 if( NULL != (p = BTM_ReadRemoteFeatures(p_scb->peer_addr))) 1240 { 1241 if(HCI_EDR_ACL_2MPS_SUPPORTED(p)) 1242 open.edr |= BTA_AV_EDR_2MBPS; 1243 if(HCI_EDR_ACL_3MPS_SUPPORTED(p)) 1244 open.edr |= BTA_AV_EDR_3MBPS; 1245 } 1246#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) 1247 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr); 1248#endif 1249 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open); 1250 if(open.starting) 1251 { 1252 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL); 1253 } 1254 } 1255} 1256 1257/******************************************************************************* 1258** 1259** Function bta_av_security_ind 1260** 1261** Description Handle an AVDTP security indication. 1262** 1263** Returns void 1264** 1265*******************************************************************************/ 1266void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1267{ 1268 tBTA_AV_PROTECT_REQ protect_req; 1269 1270 p_scb->avdt_label = p_data->str_msg.msg.hdr.label; 1271 1272 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) 1273 { 1274 protect_req.chnl = p_scb->chnl; 1275 protect_req.hndl = p_scb->hndl; 1276 /* 1277 APPL_TRACE_EVENT1("sec ind handle: x%x", protect_req.hndl); 1278 */ 1279 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data; 1280 protect_req.len = p_data->str_msg.msg.security_ind.len; 1281 1282 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, (tBTA_AV *) &protect_req); 1283 } 1284 /* app doesn't support security indication; respond with failure */ 1285 else 1286 { 1287 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL, 0); 1288 } 1289} 1290 1291/******************************************************************************* 1292** 1293** Function bta_av_security_cfm 1294** 1295** Description Handle an AVDTP security confirm. 1296** 1297** Returns void 1298** 1299*******************************************************************************/ 1300void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1301{ 1302 tBTA_AV_PROTECT_RSP protect_rsp; 1303 1304 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) 1305 { 1306 protect_rsp.chnl = p_scb->chnl; 1307 protect_rsp.hndl = p_scb->hndl; 1308 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data; 1309 protect_rsp.len = p_data->str_msg.msg.security_cfm.len; 1310 protect_rsp.err_code= p_data->str_msg.msg.hdr.err_code; 1311 1312 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, (tBTA_AV *) &protect_rsp); 1313 } 1314} 1315 1316/******************************************************************************* 1317** 1318** Function bta_av_do_close 1319** 1320** Description Close stream. 1321** 1322** Returns void 1323** 1324*******************************************************************************/ 1325void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1326{ 1327 /* stop stream if started */ 1328 if (p_scb->co_started) 1329 { 1330 bta_av_str_stopped(p_scb, NULL); 1331 } 1332 bta_sys_stop_timer(&bta_av_cb.sig_tmr); 1333 1334 /* close stream */ 1335 p_scb->started = FALSE; 1336 1337 /* drop the buffers queued in L2CAP */ 1338 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 1339 1340 AVDT_CloseReq(p_scb->avdt_handle); 1341 /* just in case that the link is congested, link is flow controled by peer or 1342 * for whatever reason the the close request can not be sent in time. 1343 * when this timer expires, AVDT_DisconnectReq will be called to disconnect the link 1344 */ 1345 bta_sys_start_timer(&p_scb->timer, 1346 (UINT16)BTA_AV_API_CLOSE_EVT, 1347 BTA_AV_CLOSE_REQ_TIME_VAL); 1348 1349} 1350 1351/******************************************************************************* 1352** 1353** Function bta_av_connect_req 1354** 1355** Description Connect AVDTP connection. 1356** 1357** Returns void 1358** 1359*******************************************************************************/ 1360void bta_av_connect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1361{ 1362 utl_freebuf((void **) &p_scb->p_disc_db); 1363 1364 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) 1365 { 1366 /* SNK initiated L2C connection while SRC was doing SDP. */ 1367 /* Wait until timeout to check if SNK starts signalling. */ 1368 APPL_TRACE_EVENT1("bta_av_connect_req: coll_mask = 0x%2X", p_scb->coll_mask); 1369 return; 1370 } 1371 1372 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); 1373} 1374 1375/******************************************************************************* 1376** 1377** Function bta_av_sdp_failed 1378** 1379** Description Service discovery failed. 1380** 1381** Returns void 1382** 1383*******************************************************************************/ 1384void bta_av_sdp_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1385{ 1386 if (!p_scb->open_status) 1387 p_scb->open_status = BTA_AV_FAIL_SDP; 1388 1389 utl_freebuf((void **) &p_scb->p_disc_db); 1390 bta_av_str_closed(p_scb, p_data); 1391} 1392 1393/******************************************************************************* 1394** 1395** Function bta_av_disc_results 1396** 1397** Description Handle the AVDTP discover results. Search through the 1398** results and find the first available stream, and get 1399** its capabilities. 1400** 1401** Returns void 1402** 1403*******************************************************************************/ 1404void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1405{ 1406 UINT8 num_snks = 0, i; 1407 1408 /* store number of stream endpoints returned */ 1409 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps; 1410 1411 for (i = 0; i < p_scb->num_seps; i++) 1412 { 1413 /* steam not in use, is a sink, and is audio */ 1414 if ((p_scb->sep_info[i].in_use == FALSE) && 1415 (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && 1416 (p_scb->sep_info[i].media_type == p_scb->media_type)) 1417 { 1418 num_snks++; 1419 } 1420 } 1421 1422 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr); 1423 p_scb->num_disc_snks = num_snks; 1424 1425 /* if we got any */ 1426 if (p_scb->num_seps > 0) 1427 { 1428 /* initialize index into discovery results */ 1429 p_scb->sep_info_idx = 0; 1430 1431 /* get the capabilities of the first available stream */ 1432 bta_av_next_getcap(p_scb, p_data); 1433 } 1434 /* else we got discover response but with no streams; we're done */ 1435 else 1436 { 1437 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data); 1438 } 1439} 1440 1441/******************************************************************************* 1442** 1443** Function bta_av_disc_res_as_acp 1444** 1445** Description Handle the AVDTP discover results. Search through the 1446** results and find the first available stream, and get 1447** its capabilities. 1448** 1449** Returns void 1450** 1451*******************************************************************************/ 1452void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1453{ 1454 UINT8 num_snks = 0, i; 1455 1456 /* store number of stream endpoints returned */ 1457 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps; 1458 1459 1460 1461 for (i = 0; i < p_scb->num_seps; i++) 1462 { 1463 /* steam is a sink, and is audio */ 1464 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && 1465 (p_scb->sep_info[i].media_type == p_scb->media_type)) 1466 { 1467 p_scb->sep_info[i].in_use = FALSE; 1468 num_snks++; 1469 } 1470 } 1471 1472 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr); 1473 p_scb->num_disc_snks = num_snks; 1474 1475 /* if we got any */ 1476 if (p_scb->num_seps > 0) 1477 { 1478 /* initialize index into discovery results */ 1479 p_scb->sep_info_idx = 0; 1480 1481 /* get the capabilities of the first available stream */ 1482 bta_av_next_getcap(p_scb, p_data); 1483 } 1484 /* else we got discover response but with no streams; we're done */ 1485 else 1486 { 1487 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data); 1488 } 1489} 1490 1491/******************************************************************************* 1492** 1493** Function bta_av_save_caps 1494** 1495** Description report the SNK SEP capabilities to application 1496** 1497** Returns void 1498** 1499*******************************************************************************/ 1500void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1501{ 1502 tAVDT_CFG cfg; 1503 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx]; 1504 UINT8 old_wait = p_scb->wait; 1505 BOOLEAN getcap_done = FALSE; 1506 1507 APPL_TRACE_DEBUG3("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x", 1508 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait); 1509 memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG)); 1510 /* let application know the capability of the SNK */ 1511 p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX], 1512 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid, 1513 &cfg.num_protect, cfg.protect_info); 1514 1515 p_scb->sep_info_idx++; 1516 if(p_scb->num_seps > p_scb->sep_info_idx) 1517 { 1518 /* Some devices have seps at the end of the discover list, which is not */ 1519 /* matching media type(video not audio). */ 1520 /* In this case, we are done with getcap without sending another */ 1521 /* request to AVDT. */ 1522 if (!bta_av_next_getcap(p_scb, p_data)) 1523 getcap_done = TRUE; 1524 } 1525 else 1526 getcap_done = TRUE; 1527 1528 if (getcap_done) 1529 { 1530 /* we are done getting capabilities. restore the p_cb->sep_info_idx */ 1531 p_scb->sep_info_idx = 0; 1532 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED); 1533 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED) 1534 { 1535 bta_av_start_ok (p_scb, NULL); 1536 } 1537 } 1538} 1539 1540/******************************************************************************* 1541** 1542** Function bta_av_set_use_rc 1543** 1544** Description set to use AVRC for this stream control block. 1545** 1546** Returns void 1547** 1548*******************************************************************************/ 1549void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1550{ 1551 p_scb->use_rc = TRUE; 1552} 1553 1554/******************************************************************************* 1555** 1556** Function bta_av_cco_close 1557** 1558** Description call close call-out function. 1559** 1560** Returns void 1561** 1562*******************************************************************************/ 1563void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1564{ 1565 UINT16 mtu; 1566 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU); 1567 1568 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu); 1569} 1570 1571/******************************************************************************* 1572** 1573** Function bta_av_open_failed 1574** 1575** Description Failed to open an AVDT stream 1576** 1577** Returns void 1578** 1579*******************************************************************************/ 1580void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1581{ 1582 1583 BOOLEAN is_av_opened = FALSE; 1584 tBTA_AV_SCB * p_opened_scb = NULL; 1585 UINT8 idx; 1586 tBTA_AV_OPEN open; 1587 1588 APPL_TRACE_DEBUG0("bta_av_open_failed"); 1589 p_scb->open_status = BTA_AV_FAIL_STREAM; 1590 bta_av_cco_close(p_scb, p_data); 1591 1592 /* check whether there is already an opened audio or video connection with the same device */ 1593 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (is_av_opened == FALSE); idx++ ) 1594 { 1595 p_opened_scb = bta_av_cb.p_scb[idx]; 1596 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) && (!bdcmp(p_opened_scb->peer_addr,p_scb->peer_addr )) ) 1597 is_av_opened = TRUE; 1598 1599 } 1600 1601 /* if there is already an active AV connnection with the same bd_addr, 1602 don't send disconnect req, just report the open event with BTA_AV_FAIL_GET_CAP status */ 1603 if (is_av_opened == TRUE) 1604 { 1605 bdcpy(open.bd_addr, p_scb->peer_addr); 1606 open.chnl = p_scb->chnl; 1607 open.hndl = p_scb->hndl; 1608 open.status = BTA_AV_FAIL_GET_CAP; 1609 open.starting = bta_av_chk_start(p_scb); 1610 open.edr = 0; 1611 /* set the state back to initial state */ 1612 bta_av_set_scb_sst_init(p_scb); 1613 1614 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open); 1615 1616 } 1617 else 1618 { 1619 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); 1620 } 1621} 1622 1623 1624/******************************************************************************* 1625** 1626** Function bta_av_getcap_results 1627** 1628** Description Handle the AVDTP get capabilities results. Check the codec 1629** type and see if it matches ours. If it does not, get the 1630** capabilities of the next stream, if any. 1631** 1632** Returns void 1633** 1634*******************************************************************************/ 1635void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1636{ 1637 tAVDT_CFG cfg; 1638 UINT8 media_type; 1639 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx]; 1640 1641 memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG)); 1642 cfg.num_codec = 1; 1643 cfg.num_protect = p_scb->p_cap->num_protect; 1644 memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE); 1645 memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE); 1646 media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4; 1647 1648 APPL_TRACE_DEBUG1("num_codec %d", p_scb->p_cap->num_codec); 1649 APPL_TRACE_DEBUG2("media type x%x, x%x", media_type, p_scb->media_type); 1650#if AVDT_MULTIPLEXING == TRUE 1651 APPL_TRACE_DEBUG2("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask); 1652#endif 1653 1654 /* if codec present and we get a codec configuration */ 1655 if ((p_scb->p_cap->num_codec != 0) && 1656 (media_type == p_scb->media_type) && 1657 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX], 1658 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid, 1659 &cfg.num_protect, cfg.protect_info) == 0)) 1660 { 1661#if AVDT_MULTIPLEXING == TRUE 1662 cfg.mux_mask &= p_scb->p_cap->mux_mask; 1663 APPL_TRACE_DEBUG1("mux_mask used x%x", cfg.mux_mask); 1664#endif 1665 /* save copy of codec type and configuration */ 1666 p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX]; 1667 memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG)); 1668 bta_av_adjust_seps_idx(p_scb); 1669 /* use only the services peer supports */ 1670 cfg.psc_mask &= p_scb->p_cap->psc_mask; 1671 p_scb->cur_psc_mask = cfg.psc_mask; 1672 1673 /* open the stream */ 1674 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr, 1675 p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg); 1676 1677 if (!bta_av_is_rcfg_sst(p_scb)) 1678 { 1679 /* free capabilities buffer */ 1680 utl_freebuf((void **) &p_scb->p_cap); 1681 } 1682 } 1683 else 1684 { 1685 /* try the next stream, if any */ 1686 p_scb->sep_info_idx++; 1687 bta_av_next_getcap(p_scb, p_data); 1688 } 1689 1690} 1691 1692/******************************************************************************* 1693** 1694** Function bta_av_setconfig_rej 1695** 1696** Description Send AVDTP set config reject. 1697** 1698** Returns void 1699** 1700*******************************************************************************/ 1701void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1702{ 1703 tBTA_AV_REJECT reject; 1704 1705 APPL_TRACE_DEBUG0("bta_av_setconfig_rej"); 1706 AVDT_ConfigRsp(p_data->str_msg.handle, p_data->str_msg.msg.hdr.label, AVDT_ERR_BAD_STATE, 0); 1707 bdcpy(reject.bd_addr, p_data->str_msg.bd_addr); 1708 reject.hndl = p_scb->hndl; 1709 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject); 1710} 1711 1712/******************************************************************************* 1713** 1714** Function bta_av_discover_req 1715** 1716** Description Send an AVDTP discover request to the peer. 1717** 1718** Returns void 1719** 1720*******************************************************************************/ 1721void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1722{ 1723 /* send avdtp discover request */ 1724 1725 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]); 1726} 1727 1728/******************************************************************************* 1729** 1730** Function bta_av_conn_failed 1731** 1732** Description AVDTP connection failed. 1733** 1734** Returns void 1735** 1736*******************************************************************************/ 1737void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1738{ 1739 p_scb->open_status = BTA_AV_FAIL_STREAM; 1740 bta_av_str_closed(p_scb, p_data); 1741} 1742 1743/******************************************************************************* 1744** 1745** Function bta_av_do_start 1746** 1747** Description Start stream. 1748** 1749** Returns void 1750** 1751*******************************************************************************/ 1752void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1753{ 1754 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 1755 UINT8 cur_role; 1756 1757 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); 1758 if (bta_av_cb.sco_occupied) 1759 { 1760 bta_av_start_failed(p_scb, p_data); 1761 return; 1762 } 1763 1764 /* disallow role switch during streaming, only if we are the master role 1765 * i.e. allow role switch, if we are slave. 1766 * It would not hurt us, if the peer device wants us to be master */ 1767 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) && 1768 (cur_role == BTM_ROLE_MASTER) ) 1769 { 1770 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 1771 } 1772 1773 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr); 1774 1775 if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0)) 1776 { 1777 p_scb->role |= BTA_AV_ROLE_START_INT; 1778 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 1779 1780 AVDT_StartReq(&p_scb->avdt_handle, 1); 1781 } 1782 else if (p_scb->started) 1783 { 1784 p_scb->role |= BTA_AV_ROLE_START_INT; 1785 if ( p_scb->wait == 0 ) 1786 bta_av_start_ok(p_scb, NULL); 1787 } 1788 APPL_TRACE_DEBUG2("started %d role:x%x", p_scb->started, p_scb->role); 1789} 1790 1791/******************************************************************************* 1792** 1793** Function bta_av_str_stopped 1794** 1795** Description Stream stopped. 1796** 1797** Returns void 1798** 1799*******************************************************************************/ 1800void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1801{ 1802 tBTA_AV_SUSPEND suspend_rsp; 1803 UINT8 start = p_scb->started; 1804 BOOLEAN sus_evt = TRUE; 1805 BT_HDR *p_buf; 1806 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 1807 1808 APPL_TRACE_ERROR2("bta_av_str_stopped:audio_open_cnt=%d, p_data %x", 1809 bta_av_cb.audio_open_cnt, p_data); 1810 1811 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 1812 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) 1813 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 1814 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); 1815 1816 if(p_scb->co_started) 1817 { 1818 bta_av_stream_chg(p_scb, FALSE); 1819 p_scb->co_started = FALSE; 1820 1821 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); 1822 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO); 1823 } 1824 1825 /* if q_info.a2d is not empty, drop it now */ 1826 if(BTA_AV_CHNL_AUDIO == p_scb->chnl) 1827 { 1828 while((p_buf = (BT_HDR*)GKI_dequeue (&p_scb->q_info.a2d)) != NULL) 1829 GKI_freebuf(p_buf); 1830 1831 /* drop the audio buffers queued in L2CAP */ 1832 if(p_data && p_data->api_stop.flush) 1833 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 1834 } 1835 1836 suspend_rsp.chnl = p_scb->chnl; 1837 suspend_rsp.hndl = p_scb->hndl; 1838 1839 if (p_data && p_data->api_stop.suspend) 1840 { 1841 APPL_TRACE_DEBUG2("suspending: %d, sup:%d", start, p_scb->suspend_sup); 1842 if ((start) && (p_scb->suspend_sup)) 1843 { 1844 sus_evt = FALSE; 1845 p_scb->l2c_bufs = 0; 1846 AVDT_SuspendReq(&p_scb->avdt_handle, 1); 1847 } 1848 1849 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is TRUE*/ 1850 if ((sus_evt)&&(p_scb->state != BTA_AV_RCFG_SST)) 1851 { 1852 suspend_rsp.status = BTA_AV_SUCCESS; 1853 suspend_rsp.initiator = TRUE; 1854 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp); 1855 } 1856 } 1857 else 1858 { 1859 suspend_rsp.status = BTA_AV_SUCCESS; 1860 suspend_rsp.initiator = TRUE; 1861 APPL_TRACE_EVENT1("bta_av_str_stopped status %d", suspend_rsp.status); 1862 1863 /* send STOP_EVT event only if not in reconfiguring state */ 1864 if (p_scb->state != BTA_AV_RCFG_SST) 1865 { 1866 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp); 1867 } 1868 } 1869} 1870 1871/******************************************************************************* 1872** 1873** Function bta_av_reconfig 1874** 1875** Description process the reconfigure request. 1876** save the parameter in control block and 1877** suspend, reconfigure or close the stream 1878** 1879** Returns void 1880** 1881*******************************************************************************/ 1882void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1883{ 1884 tAVDT_CFG *p_cfg; 1885 tBTA_AV_API_STOP stop; 1886 tBTA_AV_RECONFIG evt; 1887 tBTA_AV_API_RCFG *p_rcfg = &p_data->api_reconfig; 1888 1889 APPL_TRACE_DEBUG4("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)", 1890 p_scb->recfg_sup, p_scb->suspend_sup, 1891 p_scb->rcfg_idx, p_scb->sep_info_idx); 1892 1893 p_scb->num_recfg = 0; 1894 /* store the new configuration in control block */ 1895 if (p_scb->p_cap == NULL) 1896 { 1897 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG)); 1898 } 1899 if((p_cfg = p_scb->p_cap) == NULL) 1900 { 1901 /* report failure */ 1902 evt.status = BTA_AV_FAIL_RESOURCES; 1903 evt.chnl = p_scb->chnl; 1904 evt.hndl = p_scb->hndl; 1905 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 1906 1907 /* this event is not possible in this state. 1908 * use it to bring the SSM back to open state */ 1909 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_OK_EVT, NULL); 1910 return; 1911 } 1912 1913 /*if(bta_av_cb.features & BTA_AV_FEAT_RCCT)*/ 1914 bta_sys_stop_timer(&p_scb->timer); 1915 1916 memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG)); 1917 p_cfg->num_protect = p_rcfg->num_protect; 1918 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE); 1919 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect); 1920 p_scb->rcfg_idx = p_rcfg->sep_info_idx; 1921 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; 1922 1923 /* if the requested index differs from the current one, we can only close/open */ 1924 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) && 1925 (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup)) 1926 { 1927 if(p_scb->started) 1928 { 1929 stop.flush = FALSE; 1930 stop.suspend = TRUE; 1931 bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop); 1932 } 1933 else 1934 { 1935 APPL_TRACE_DEBUG0("Reconfig"); 1936 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap); 1937 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; 1938 } 1939 } 1940 else 1941 { 1942 /* close the stream */ 1943 APPL_TRACE_DEBUG1("close/open num_protect: %d", p_cfg->num_protect); 1944 if(p_scb->started) 1945 bta_av_str_stopped(p_scb, NULL); 1946 p_scb->started = FALSE; 1947 1948 /* drop the buffers queued in L2CAP */ 1949 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 1950 1951 AVDT_CloseReq(p_scb->avdt_handle); 1952 1953 } 1954} 1955 1956/******************************************************************************* 1957** 1958** Function bta_av_data_path 1959** 1960** Description Handle stream data path. 1961** 1962** Returns void 1963** 1964*******************************************************************************/ 1965void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 1966{ 1967 BT_HDR *p_buf; 1968 UINT32 data_len; 1969 UINT32 timestamp; 1970 BOOLEAN new_buf = FALSE; 1971 UINT8 m_pt = 0x60 | p_scb->codec_type; 1972 tAVDT_DATA_OPT_MASK opt; 1973 1974 if (!p_scb->cong) 1975 { 1976 /* 1977 APPL_TRACE_ERROR1("q: %d", p_scb->l2c_bufs); 1978 */ 1979 //Always get the current number of bufs que'd up 1980 p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET); 1981 1982 p_buf = (BT_HDR *)GKI_dequeue (&p_scb->q_info.a2d); 1983 if(p_buf) 1984 { 1985 /* use q_info.a2d data, read the timestamp */ 1986 timestamp = *(UINT32 *)(p_buf + 1); 1987 } 1988 else 1989 { 1990 new_buf = TRUE; 1991 /* q_info.a2d empty, call co_data, dup data to other channels */ 1992 p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len, 1993 ×tamp); 1994 1995 if (p_buf) 1996 { 1997 /* use the offset area for the time stamp */ 1998 *(UINT32 *)(p_buf + 1) = timestamp; 1999 2000 /* dup the data to other channels */ 2001 bta_av_dup_audio_buf(p_scb, p_buf); 2002 } 2003 } 2004 2005 if(p_buf) 2006 { 2007 if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM)) 2008 { 2009 /* there's a buffer, just queue it to L2CAP */ 2010 /* There's no need to increment it here, it is always read from L2CAP see above */ 2011 /* p_scb->l2c_bufs++; */ 2012 /* 2013 APPL_TRACE_ERROR1("qw: %d", p_scb->l2c_bufs); 2014 */ 2015 2016 /* opt is a bit mask, it could have several options set */ 2017 opt = AVDT_DATA_OPT_NONE; 2018 if (p_scb->no_rtp_hdr) 2019 { 2020 opt |= AVDT_DATA_OPT_NO_RTP; 2021 } 2022 2023 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt); 2024 p_scb->cong = TRUE; 2025 } 2026 else 2027 { 2028 /* there's a buffer, but L2CAP does not seem to be moving data */ 2029 if(new_buf) 2030 { 2031 /* just got this buffer from co_data, 2032 * put it in queue */ 2033 GKI_enqueue(&p_scb->q_info.a2d, p_buf); 2034 } 2035 else 2036 { 2037 /* just dequeue it from the q_info.a2d */ 2038 if(p_scb->q_info.a2d.count < 3) 2039 { 2040 /* put it back to the queue */ 2041 GKI_enqueue_head (&p_scb->q_info.a2d, p_buf); 2042 } 2043 else 2044 { 2045 /* too many buffers in q_info.a2d, drop it. */ 2046 bta_av_co_audio_drop(p_scb->hndl); 2047 GKI_freebuf(p_buf); 2048 } 2049 } 2050 } 2051 } 2052 } 2053} 2054 2055/******************************************************************************* 2056** 2057** Function bta_av_start_ok 2058** 2059** Description Stream started. 2060** 2061** Returns void 2062** 2063*******************************************************************************/ 2064void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2065{ 2066 tBTA_AV_START start; 2067 tBTA_AV_API_STOP stop; 2068 BOOLEAN initiator = FALSE; 2069 BOOLEAN suspend = FALSE; 2070 UINT16 flush_to; 2071 UINT8 new_role = p_scb->role; 2072 BT_HDR hdr; 2073 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 2074 UINT8 cur_role; 2075 2076 APPL_TRACE_DEBUG2("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role); 2077 2078 p_scb->started = TRUE; 2079 if (p_scb->sco_suspend) 2080 { 2081 p_scb->sco_suspend = FALSE; 2082 } 2083 2084 if (new_role & BTA_AV_ROLE_START_INT) 2085 initiator = TRUE; 2086 2087 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED) 2088 { 2089 /* role switch has failed */ 2090 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED; 2091 p_data = (tBTA_AV_DATA *)&hdr; 2092 hdr.offset = BTA_AV_RS_FAIL; 2093 } 2094 APPL_TRACE_DEBUG1("wait:x%x", p_scb->wait); 2095 2096 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE)) 2097 { 2098 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 2099 if (p_data->hdr.offset == BTA_AV_RS_FAIL) 2100 { 2101 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 2102 start.chnl = p_scb->chnl; 2103 start.status = BTA_AV_FAIL_ROLE; 2104 start.hndl = p_scb->hndl; 2105 start.initiator = initiator; 2106 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 2107 return; 2108 } 2109 } 2110 2111 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT)) 2112 p_scb->q_tag = BTA_AV_Q_TAG_START; 2113 else 2114 { 2115 /* The wait flag may be set here while we are already master on the link */ 2116 /* this could happen if a role switch complete event occurred during reconfig */ 2117 /* if we are now master on the link, there is no need to wait for the role switch, */ 2118 /* complete anymore so we can clear the wait for role switch flag */ 2119 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 2120 } 2121 2122 if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START)) 2123 { 2124 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED; 2125 p_scb->q_tag = BTA_AV_Q_TAG_START; 2126 } 2127 2128 if (p_scb->wait & BTA_AV_WAIT_ACP_CAPS_ON) 2129 { 2130 p_scb->wait |= BTA_AV_WAIT_ACP_CAPS_STARTED; 2131 } 2132 2133 if (p_scb->wait) 2134 { 2135 APPL_TRACE_DEBUG2("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag); 2136 return; 2137 } 2138 2139 /* tell role manager to check M/S role */ 2140 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 2141 2142 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 2143 2144 if(p_scb->media_type == AVDT_MEDIA_AUDIO) 2145 { 2146 /* in normal logic, conns should be bta_av_cb.audio_count - 1, 2147 * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet. 2148 * If the code were to be re-arranged for some reasons, this number may need to be changed 2149 */ 2150 p_scb->co_started = bta_av_cb.audio_open_cnt; 2151 flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1]; 2152 } 2153 else 2154 { 2155 flush_to = p_bta_av_cfg->video_flush_to; 2156 } 2157 L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to ); 2158 2159 /* clear the congestion flag */ 2160 p_scb->cong = FALSE; 2161 2162 if (new_role & BTA_AV_ROLE_START_INT) 2163 { 2164 new_role &= ~BTA_AV_ROLE_START_INT; 2165 } 2166 else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT)) 2167 { 2168 suspend = TRUE; 2169 } 2170 2171 if (!suspend) 2172 { 2173 p_scb->q_tag = BTA_AV_Q_TAG_STREAM; 2174 bta_av_stream_chg(p_scb, TRUE); 2175 } 2176 2177 { 2178 /* If sink starts stream, disable sniff mode here */ 2179 if (!initiator) 2180 { 2181 /* If souce is the master role, disable role switch during streaming. 2182 * Otherwise allow role switch, if source is slave. 2183 * Because it would not hurt source, if the peer device wants source to be master */ 2184 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) && 2185 (cur_role == BTM_ROLE_MASTER) ) 2186 { 2187 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 2188 } 2189 2190 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr); 2191 } 2192 2193 p_scb->role = new_role; 2194 p_scb->role &= ~BTA_AV_ROLE_AD_ACP; 2195 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT; 2196 2197 p_scb->no_rtp_hdr = FALSE; 2198 p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type, p_scb->cfg.codec_info, &p_scb->no_rtp_hdr); 2199 p_scb->co_started = TRUE; 2200 2201 APPL_TRACE_DEBUG3("bta_av_start_ok suspending: %d, role:x%x, init %d", 2202 suspend, p_scb->role, initiator); 2203 2204 start.suspending = suspend; 2205 start.initiator = initiator; 2206 start.chnl = p_scb->chnl; 2207 start.status = BTA_AV_SUCCESS; 2208 start.hndl = p_scb->hndl; 2209 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 2210 2211 if(suspend) 2212 { 2213 p_scb->role |= BTA_AV_ROLE_SUSPEND; 2214 p_scb->cong = TRUE; /* do not allow the media data to go through */ 2215 /* do not duplicate the media packets to this channel */ 2216 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); 2217 p_scb->co_started = FALSE; 2218 stop.flush = FALSE; 2219 stop.suspend = TRUE; 2220 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop); 2221 } 2222 } 2223} 2224 2225/******************************************************************************* 2226** 2227** Function bta_av_start_failed 2228** 2229** Description Stream start failed. 2230** 2231** Returns void 2232** 2233*******************************************************************************/ 2234void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2235{ 2236 tBTA_AV_START start; 2237 2238 if(p_scb->started == FALSE && p_scb->co_started == FALSE) 2239 { 2240 /* if start failed, clear role */ 2241 p_scb->role &= ~BTA_AV_ROLE_START_INT; 2242 2243 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 2244 start.chnl = p_scb->chnl; 2245 start.status = BTA_AV_FAIL; 2246 start.initiator = TRUE; 2247 start.hndl = p_scb->hndl; 2248 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 2249 } 2250 2251 bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr); 2252 p_scb->sco_suspend = FALSE; 2253} 2254 2255/******************************************************************************* 2256** 2257** Function bta_av_str_closed 2258** 2259** Description Stream closed. 2260** 2261** Returns void 2262** 2263*******************************************************************************/ 2264void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2265{ 2266 tBTA_AV data; 2267 tBTA_AV_EVT event; 2268 UINT16 mtu; 2269 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 2270 2271 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) 2272 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 2273 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); 2274 if (bta_av_cb.audio_open_cnt <= 1) 2275 { 2276 /* last connection - restore the allow switch flag */ 2277 L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH); 2278 } 2279 2280 if (p_scb->open_status) 2281 { 2282 /* must be failure when opening the stream */ 2283 bdcpy(data.open.bd_addr, p_scb->peer_addr); 2284 data.open.status = p_scb->open_status; 2285 data.open.chnl = p_scb->chnl; 2286 data.open.hndl = p_scb->hndl; 2287 event = BTA_AV_OPEN_EVT; 2288 p_scb->open_status = BTA_AV_SUCCESS; 2289 2290 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 2291 bta_av_cleanup(p_scb, p_data); 2292 (*bta_av_cb.p_cback)(event, &data); 2293 } 2294 else 2295 { 2296 /* do stop if we were started */ 2297 if (p_scb->co_started) 2298 { 2299 bta_av_str_stopped(p_scb, NULL); 2300 } 2301 2302 /* Update common mtu shared by remaining connectons */ 2303 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU); 2304 2305 { 2306 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu); 2307 data.close.chnl = p_scb->chnl; 2308 data.close.hndl = p_scb->hndl; 2309 event = BTA_AV_CLOSE_EVT; 2310 2311 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); 2312 bta_av_cleanup(p_scb, p_data); 2313 (*bta_av_cb.p_cback)(event, &data); 2314 } 2315 } 2316} 2317 2318/******************************************************************************* 2319** 2320** Function bta_av_clr_cong 2321** 2322** Description Clear stream congestion flag. 2323** 2324** Returns void 2325** 2326*******************************************************************************/ 2327void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2328{ 2329 if(p_scb->co_started) 2330 p_scb->cong = FALSE; 2331} 2332 2333/******************************************************************************* 2334** 2335** Function bta_av_suspend_cfm 2336** 2337** Description process the suspend response 2338** 2339** Returns void 2340** 2341*******************************************************************************/ 2342void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2343{ 2344 tBTA_AV_SUSPEND suspend_rsp; 2345 UINT8 err_code = p_data->str_msg.msg.hdr.err_code; 2346 UINT8 policy = HCI_ENABLE_SNIFF_MODE; 2347 2348 APPL_TRACE_DEBUG2 ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d", 2349 bta_av_cb.audio_open_cnt, err_code); 2350 2351 if (p_scb->started == FALSE) 2352 { 2353 /* handle the condition where there is a collision of SUSPEND req from either side 2354 ** Second SUSPEND req could be rejected. Do not treat this as a failure 2355 */ 2356 APPL_TRACE_WARNING1("bta_av_suspend_cfm: already suspended, ignore, err_code %d", 2357 err_code); 2358 return; 2359 } 2360 2361 suspend_rsp.status = BTA_AV_SUCCESS; 2362 if (err_code && (err_code != AVDT_ERR_BAD_STATE)) 2363 { 2364 /* Disable suspend feature only with explicit rejection(not with timeout) */ 2365 if (err_code != AVDT_ERR_TIMEOUT) 2366 { 2367 p_scb->suspend_sup = FALSE; 2368 } 2369 suspend_rsp.status = BTA_AV_FAIL; 2370 2371 APPL_TRACE_ERROR0 ("bta_av_suspend_cfm: suspend failed, closing connection"); 2372 2373 /* SUSPEND failed. Close connection. */ 2374 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL); 2375 } 2376 else 2377 { 2378 /* only set started to FALSE when suspend is successful */ 2379 p_scb->started = FALSE; 2380 } 2381 2382 if (p_scb->role & BTA_AV_ROLE_SUSPEND) 2383 { 2384 p_scb->role &= ~BTA_AV_ROLE_SUSPEND; 2385 p_scb->cong = FALSE; 2386 } 2387 2388 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); 2389 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) 2390 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; 2391 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); 2392 2393 /* in case that we received suspend_ind, we may need to call co_stop here */ 2394 if(p_scb->co_started) 2395 { 2396 bta_av_stream_chg(p_scb, FALSE); 2397 2398 { 2399 p_scb->co_started = FALSE; 2400 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); 2401 } 2402 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO); 2403 } 2404 2405 { 2406 suspend_rsp.chnl = p_scb->chnl; 2407 suspend_rsp.hndl = p_scb->hndl; 2408 suspend_rsp.initiator = p_data->str_msg.initiator; 2409 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp); 2410 } 2411} 2412 2413/******************************************************************************* 2414** 2415** Function bta_av_rcfg_str_ok 2416** 2417** Description report reconfigure successful 2418** 2419** Returns void 2420** 2421*******************************************************************************/ 2422void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2423{ 2424 tBTA_AV_RECONFIG evt; 2425 2426 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle); 2427 APPL_TRACE_DEBUG1("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid); 2428 2429 /* rc listen */ 2430 bta_av_st_rc_timer(p_scb, NULL); 2431 utl_freebuf((void **)&p_scb->p_cap); 2432 2433 /* No need to keep the role bits once reconfig is done. */ 2434 p_scb->role &= ~BTA_AV_ROLE_AD_ACP; 2435 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT; 2436 p_scb->role &= ~BTA_AV_ROLE_START_INT; 2437 2438 { 2439 /* reconfigure success */ 2440 evt.status = BTA_AV_SUCCESS; 2441 evt.chnl = p_scb->chnl; 2442 evt.hndl = p_scb->hndl; 2443 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 2444 } 2445} 2446 2447/******************************************************************************* 2448** 2449** Function bta_av_rcfg_failed 2450** 2451** Description process reconfigure failed 2452** 2453** Returns void 2454** 2455*******************************************************************************/ 2456void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2457{ 2458 tBTA_AV_RECONFIG evt; 2459 2460 APPL_TRACE_DEBUG2("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x", 2461 p_scb->num_recfg, bta_av_cb.conn_lcb); 2462 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) 2463 { 2464 bta_av_cco_close(p_scb, p_data); 2465 /* report failure */ 2466 evt.status = BTA_AV_FAIL_STREAM; 2467 evt.chnl = p_scb->chnl; 2468 evt.hndl = p_scb->hndl; 2469 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 2470 /* go to closing state */ 2471 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL); 2472 } 2473 else 2474 { 2475 /* open failed. try again */ 2476 p_scb->num_recfg++; 2477 if(bta_av_cb.conn_lcb) 2478 { 2479 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); 2480 } 2481 else 2482 { 2483 bta_av_connect_req(p_scb, NULL); 2484 } 2485 } 2486} 2487 2488/******************************************************************************* 2489** 2490** Function bta_av_rcfg_connect 2491** 2492** Description stream closed. reconnect the stream 2493** 2494** Returns void 2495** 2496*******************************************************************************/ 2497void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2498{ 2499 p_scb->cong = FALSE; 2500 p_scb->num_recfg++; 2501 APPL_TRACE_DEBUG1("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg); 2502 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) 2503 { 2504 /* let bta_av_rcfg_failed report fail */ 2505 bta_av_rcfg_failed(p_scb, NULL); 2506 } 2507 else 2508 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); 2509} 2510 2511/******************************************************************************* 2512** 2513** Function bta_av_rcfg_discntd 2514** 2515** Description AVDT disconnected. reconnect the stream 2516** 2517** Returns void 2518** 2519*******************************************************************************/ 2520void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2521{ 2522 tBTA_AV_RECONFIG evt; 2523 2524 APPL_TRACE_DEBUG1("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg); 2525 p_scb->num_recfg++; 2526 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) 2527 { 2528 /* report failure */ 2529 evt.status = BTA_AV_FAIL_STREAM; 2530 evt.chnl = p_scb->chnl; 2531 evt.hndl = p_scb->hndl; 2532 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 2533 /* report close event & go to init state */ 2534 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL); 2535 } 2536 else 2537 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); 2538} 2539 2540/******************************************************************************* 2541** 2542** Function bta_av_suspend_cont 2543** 2544** Description received the suspend response. 2545** continue to reconfigure the stream 2546** 2547** Returns void 2548** 2549*******************************************************************************/ 2550void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2551{ 2552 UINT8 err_code = p_data->str_msg.msg.hdr.err_code; 2553 tBTA_AV_RECONFIG evt; 2554 2555 p_scb->started = FALSE; 2556 p_scb->cong = FALSE; 2557 if (err_code) 2558 { 2559 if (AVDT_ERR_CONNECT == err_code) 2560 { 2561 /* report failure */ 2562 evt.status = BTA_AV_FAIL; 2563 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); 2564 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL); 2565 } 2566 else 2567 { 2568 APPL_TRACE_ERROR0("suspend rejected, try close"); 2569 /* Disable suspend feature only with explicit rejection(not with timeout) */ 2570 if (err_code != AVDT_ERR_TIMEOUT) 2571 { 2572 p_scb->suspend_sup = FALSE; 2573 } 2574 /* drop the buffers queued in L2CAP */ 2575 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 2576 2577 AVDT_CloseReq(p_scb->avdt_handle); 2578 } 2579 } 2580 else 2581 { 2582 APPL_TRACE_DEBUG0("bta_av_suspend_cont calling AVDT_ReconfigReq"); 2583 /* reconfig the stream */ 2584 2585 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap); 2586 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; 2587 } 2588} 2589 2590/******************************************************************************* 2591** 2592** Function bta_av_rcfg_cfm 2593** 2594** Description if reconfigure is successful, report the event 2595** otherwise, close the stream. 2596** 2597** Returns void 2598** 2599*******************************************************************************/ 2600void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2601{ 2602 UINT8 err_code = p_data->str_msg.msg.hdr.err_code; 2603 2604 /* 2605 APPL_TRACE_DEBUG0("bta_av_rcfg_cfm"); 2606 */ 2607 if (err_code) 2608 { 2609 APPL_TRACE_ERROR0("reconfig rejected, try close"); 2610 /* Disable reconfiguration feature only with explicit rejection(not with timeout) */ 2611 if (err_code != AVDT_ERR_TIMEOUT) 2612 { 2613 p_scb->recfg_sup = FALSE; 2614 } 2615 /* started flag is FALSE when reconfigure command is sent */ 2616 /* drop the buffers queued in L2CAP */ 2617 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); 2618 AVDT_CloseReq(p_scb->avdt_handle); 2619 } 2620 else 2621 { 2622 /* update the codec info after rcfg cfm */ 2623 memcpy(p_scb->cfg.codec_info,p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info,AVDT_CODEC_SIZE); 2624 /* take the SSM back to OPEN state */ 2625 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL); 2626 } 2627} 2628 2629/******************************************************************************* 2630** 2631** Function bta_av_rcfg_open 2632** 2633** Description AVDT is connected. open the stream with the new configuration 2634** 2635** Returns void 2636** 2637*******************************************************************************/ 2638void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2639{ 2640 APPL_TRACE_DEBUG1("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks); 2641 2642 if (p_scb->num_disc_snks == 0) 2643 { 2644 /* Need to update call-out module so that it will be ready for discover */ 2645 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); 2646 2647 /* send avdtp discover request */ 2648 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]); 2649 } 2650 else 2651 { 2652 p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX]; 2653 memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE); 2654 /* we may choose to use a different SEP at reconfig. 2655 * adjust the sep_idx now */ 2656 bta_av_adjust_seps_idx(p_scb); 2657 2658 /* open the stream with the new config */ 2659 p_scb->sep_info_idx = p_scb->rcfg_idx; 2660 AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr, 2661 p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap); 2662 } 2663 2664} 2665 2666/******************************************************************************* 2667** 2668** Function bta_av_security_rej 2669** 2670** Description Send an AVDTP security reject. 2671** 2672** Returns void 2673** 2674*******************************************************************************/ 2675void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2676{ 2677 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE, 2678 NULL, 0); 2679} 2680 2681/******************************************************************************* 2682** 2683** Function bta_av_chk_2nd_start 2684** 2685** Description check if this is 2nd stream and if it needs to be started. 2686** This function needs to be kept very similar to bta_av_chk_start 2687** 2688** Returns void 2689** 2690*******************************************************************************/ 2691void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2692{ 2693 tBTA_AV_SCB *p_scbi; 2694 int i; 2695 BOOLEAN new_started = FALSE; 2696 2697 2698 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2)) 2699 { 2700 /* more than one audio channel is connected */ 2701 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT)) 2702 { 2703 /* this channel does not need to be reconfigured. 2704 * if there is other channel streaming, start the stream now */ 2705 for(i=0; i<BTA_AV_NUM_STRS; i++) 2706 { 2707 p_scbi = bta_av_cb.p_scb[i]; 2708 if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started) 2709 { 2710 if (!new_started) 2711 { 2712 /* start the new stream */ 2713 new_started = TRUE; 2714 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL); 2715 } 2716 /* may need to update the flush timeout of this already started stream */ 2717 if (p_scbi->co_started != bta_av_cb.audio_open_cnt) 2718 { 2719 p_scbi->co_started = bta_av_cb.audio_open_cnt; 2720 L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] ); 2721 } 2722 } 2723 } 2724 } 2725 } 2726} 2727 2728/******************************************************************************* 2729** 2730** Function bta_av_open_rc 2731** 2732** Description Send a message to main SM to open RC channel. 2733** 2734** Returns void 2735** 2736*******************************************************************************/ 2737void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2738{ 2739 tBTA_AV_START start; 2740 2741 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); 2742 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START)) 2743 { 2744 /* waiting for role switch for some reason & the timer expires */ 2745 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT)) 2746 { 2747 APPL_TRACE_ERROR0 ("failed to start streaming for role management reasons!!"); 2748 bta_sys_stop_timer(&p_scb->timer); 2749 start.chnl = p_scb->chnl; 2750 start.status = BTA_AV_FAIL_ROLE; 2751 start.initiator = TRUE; 2752 start.hndl = p_scb->hndl; 2753 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; 2754 bta_av_cb.rs_idx = 0; 2755 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); 2756 } 2757 else 2758 { 2759 /* role switch is done. continue to start streaming */ 2760 bta_av_cb.rs_idx = 0; 2761 p_data->hdr.offset = BTA_AV_RS_OK; 2762 bta_av_start_ok (p_scb, p_data); 2763 } 2764 return; 2765 } 2766 2767 if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) ) 2768 { 2769 if(bta_av_cb.disc) 2770 { 2771 /* AVRC discover db is in use */ 2772 if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) 2773 { 2774 /* AVRC channel is not connected. delay a little bit */ 2775 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) 2776 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); 2777 else 2778 p_scb->wait |= BTA_AV_WAIT_CHECK_RC; 2779 } 2780 } 2781 else 2782 { 2783 /* use main SM for AVRC SDP activities */ 2784 bta_av_rc_disc((UINT8)(p_scb->hdi + 1)); 2785 } 2786 } 2787 else 2788 { 2789 if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle) 2790 { 2791 /* the open API said that this handle does not want a RC connection. 2792 * disconnect it now */ 2793 AVRC_Close(p_scb->rc_handle); 2794 } 2795 } 2796} 2797 2798/******************************************************************************* 2799** 2800** Function bta_av_open_at_inc 2801** 2802** Description This function is called if API open is called by application 2803** while state-machine is at incoming state. 2804** 2805** Returns void 2806** 2807*******************************************************************************/ 2808void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) 2809{ 2810 tBTA_AV_API_OPEN *p_buf; 2811 2812 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN)); 2813 2814 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) 2815 { 2816 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED; 2817 2818 /* API open will be handled at timeout if SNK did not start signalling. */ 2819 /* API open will be ignored if SNK starts signalling. */ 2820 } 2821 else 2822 { 2823 /* SNK did not start signalling, API was called N seconds timeout. */ 2824 /* We need to switch to INIT state and start opening connection. */ 2825 p_scb->coll_mask = 0; 2826 bta_av_set_scb_sst_init (p_scb); 2827 2828 if ((p_buf = (tBTA_AV_API_OPEN *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN))) != NULL) 2829 { 2830 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN)); 2831 bta_sys_sendmsg(p_buf); 2832 } 2833 } 2834} 2835 2836#endif /* BTA_AV_INCLUDED */ 2837