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