1 /****************************************************************************** 2 * 3 * Copyright (C) 2009-2016 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 #define LOG_TAG "btif_av" 20 21 #include "btif_av.h" 22 23 #include <base/logging.h> 24 #include <string.h> 25 26 #include <hardware/bluetooth.h> 27 #include <hardware/bt_av.h> 28 #include <hardware/bt_rc.h> 29 30 #include "audio_a2dp_hw/include/audio_a2dp_hw.h" 31 #include "bt_common.h" 32 #include "bt_utils.h" 33 #include "bta_api.h" 34 #include "btif_a2dp.h" 35 #include "btif_a2dp_control.h" 36 #include "btif_a2dp_sink.h" 37 #include "btif_av_co.h" 38 #include "btif_profile_queue.h" 39 #include "btif_util.h" 40 #include "btu.h" 41 #include "osi/include/allocator.h" 42 #include "osi/include/osi.h" 43 44 /***************************************************************************** 45 * Constants & Macros 46 *****************************************************************************/ 47 #define BTIF_AV_SERVICE_NAME "Advanced Audio" 48 #define BTIF_AVK_SERVICE_NAME "Advanced Audio Sink" 49 50 #define BTIF_TIMEOUT_AV_OPEN_ON_RC_MS (2 * 1000) 51 52 typedef enum { 53 BTIF_AV_STATE_IDLE = 0x0, 54 BTIF_AV_STATE_OPENING, 55 BTIF_AV_STATE_OPENED, 56 BTIF_AV_STATE_STARTED, 57 BTIF_AV_STATE_CLOSING 58 } btif_av_state_t; 59 60 /* Should not need dedicated suspend state as actual actions are no 61 different than open state. Suspend flags are needed however to prevent 62 media task from trying to restart stream during remote suspend or while 63 we are in the process of a local suspend */ 64 65 #define BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING 0x1 66 #define BTIF_AV_FLAG_REMOTE_SUSPEND 0x2 67 #define BTIF_AV_FLAG_PENDING_START 0x4 68 #define BTIF_AV_FLAG_PENDING_STOP 0x8 69 70 /***************************************************************************** 71 * Local type definitions 72 *****************************************************************************/ 73 74 typedef struct { 75 tBTA_AV_HNDL bta_handle; 76 RawAddress peer_bda; 77 bool self_initiated_connection; 78 btif_sm_handle_t sm_handle; 79 uint8_t flags; 80 tBTA_AV_EDR edr; 81 uint8_t peer_sep; /* sep type of peer device */ 82 std::vector<btav_a2dp_codec_config_t> codec_priorities; 83 } btif_av_cb_t; 84 85 typedef struct { 86 RawAddress* target_bda; 87 uint16_t uuid; 88 } btif_av_connect_req_t; 89 90 typedef struct { 91 int sample_rate; 92 int channel_count; 93 RawAddress peer_bd; 94 } btif_av_sink_config_req_t; 95 96 /***************************************************************************** 97 * Static variables 98 *****************************************************************************/ 99 static btav_source_callbacks_t* bt_av_src_callbacks = NULL; 100 static btav_sink_callbacks_t* bt_av_sink_callbacks = NULL; 101 static btif_av_cb_t btif_av_cb = { 102 0, {{0}}, false, 0, 0, 0, 0, std::vector<btav_a2dp_codec_config_t>()}; 103 static alarm_t* av_open_on_rc_timer = NULL; 104 105 /* both interface and media task needs to be ready to alloc incoming request */ 106 #define CHECK_BTAV_INIT() \ 107 do { \ 108 if (((bt_av_src_callbacks == NULL) && (bt_av_sink_callbacks == NULL)) || \ 109 (btif_av_cb.sm_handle == NULL)) { \ 110 BTIF_TRACE_WARNING("%s: BTAV not initialized", __func__); \ 111 return BT_STATUS_NOT_READY; \ 112 } \ 113 } while (0) 114 115 /* Helper macro to avoid code duplication in the state machine handlers */ 116 #define CHECK_RC_EVENT(e, d) \ 117 case BTA_AV_RC_OPEN_EVT: \ 118 case BTA_AV_RC_BROWSE_OPEN_EVT: \ 119 case BTA_AV_RC_CLOSE_EVT: \ 120 case BTA_AV_RC_BROWSE_CLOSE_EVT: \ 121 case BTA_AV_REMOTE_CMD_EVT: \ 122 case BTA_AV_VENDOR_CMD_EVT: \ 123 case BTA_AV_META_MSG_EVT: \ 124 case BTA_AV_RC_FEAT_EVT: \ 125 case BTA_AV_REMOTE_RSP_EVT: { \ 126 btif_rc_handler(e, d); \ 127 } break; 128 129 static bool btif_av_state_idle_handler(btif_sm_event_t event, void* data); 130 static bool btif_av_state_opening_handler(btif_sm_event_t event, void* data); 131 static bool btif_av_state_opened_handler(btif_sm_event_t event, void* data); 132 static bool btif_av_state_started_handler(btif_sm_event_t event, void* data); 133 static bool btif_av_state_closing_handler(btif_sm_event_t event, void* data); 134 135 static const btif_sm_handler_t btif_av_state_handlers[] = { 136 btif_av_state_idle_handler, btif_av_state_opening_handler, 137 btif_av_state_opened_handler, btif_av_state_started_handler, 138 btif_av_state_closing_handler}; 139 140 static void btif_av_event_free_data(btif_sm_event_t event, void* p_data); 141 142 /************************************************************************* 143 * Extern functions 144 ************************************************************************/ 145 extern void btif_rc_handler(tBTA_AV_EVT event, tBTA_AV* p_data); 146 extern bool btif_rc_get_connected_peer(RawAddress* peer_addr); 147 extern uint8_t btif_rc_get_connected_peer_handle(const RawAddress& peer_addr); 148 extern void btif_rc_check_handle_pending_play(const RawAddress& peer_addr, 149 bool bSendToApp); 150 151 /***************************************************************************** 152 * Local helper functions 153 *****************************************************************************/ 154 155 const char* dump_av_sm_state_name(btif_av_state_t state) { 156 switch (state) { 157 CASE_RETURN_STR(BTIF_AV_STATE_IDLE) 158 CASE_RETURN_STR(BTIF_AV_STATE_OPENING) 159 CASE_RETURN_STR(BTIF_AV_STATE_OPENED) 160 CASE_RETURN_STR(BTIF_AV_STATE_STARTED) 161 CASE_RETURN_STR(BTIF_AV_STATE_CLOSING) 162 default: 163 return "UNKNOWN_STATE"; 164 } 165 } 166 167 const char* dump_av_sm_event_name(btif_av_sm_event_t event) { 168 switch ((int)event) { 169 CASE_RETURN_STR(BTA_AV_ENABLE_EVT) 170 CASE_RETURN_STR(BTA_AV_REGISTER_EVT) 171 CASE_RETURN_STR(BTA_AV_OPEN_EVT) 172 CASE_RETURN_STR(BTA_AV_CLOSE_EVT) 173 CASE_RETURN_STR(BTA_AV_START_EVT) 174 CASE_RETURN_STR(BTA_AV_STOP_EVT) 175 CASE_RETURN_STR(BTA_AV_PROTECT_REQ_EVT) 176 CASE_RETURN_STR(BTA_AV_PROTECT_RSP_EVT) 177 CASE_RETURN_STR(BTA_AV_RC_OPEN_EVT) 178 CASE_RETURN_STR(BTA_AV_RC_CLOSE_EVT) 179 CASE_RETURN_STR(BTA_AV_RC_BROWSE_OPEN_EVT) 180 CASE_RETURN_STR(BTA_AV_RC_BROWSE_CLOSE_EVT) 181 CASE_RETURN_STR(BTA_AV_REMOTE_CMD_EVT) 182 CASE_RETURN_STR(BTA_AV_REMOTE_RSP_EVT) 183 CASE_RETURN_STR(BTA_AV_VENDOR_CMD_EVT) 184 CASE_RETURN_STR(BTA_AV_VENDOR_RSP_EVT) 185 CASE_RETURN_STR(BTA_AV_RECONFIG_EVT) 186 CASE_RETURN_STR(BTA_AV_SUSPEND_EVT) 187 CASE_RETURN_STR(BTA_AV_PENDING_EVT) 188 CASE_RETURN_STR(BTA_AV_META_MSG_EVT) 189 CASE_RETURN_STR(BTA_AV_REJECT_EVT) 190 CASE_RETURN_STR(BTA_AV_RC_FEAT_EVT) 191 CASE_RETURN_STR(BTA_AV_OFFLOAD_START_RSP_EVT) 192 CASE_RETURN_STR(BTIF_SM_ENTER_EVT) 193 CASE_RETURN_STR(BTIF_SM_EXIT_EVT) 194 CASE_RETURN_STR(BTIF_AV_CONNECT_REQ_EVT) 195 CASE_RETURN_STR(BTIF_AV_DISCONNECT_REQ_EVT) 196 CASE_RETURN_STR(BTIF_AV_START_STREAM_REQ_EVT) 197 CASE_RETURN_STR(BTIF_AV_STOP_STREAM_REQ_EVT) 198 CASE_RETURN_STR(BTIF_AV_SUSPEND_STREAM_REQ_EVT) 199 CASE_RETURN_STR(BTIF_AV_SOURCE_CONFIG_REQ_EVT) 200 CASE_RETURN_STR(BTIF_AV_SOURCE_CONFIG_UPDATED_EVT) 201 CASE_RETURN_STR(BTIF_AV_SINK_CONFIG_REQ_EVT) 202 CASE_RETURN_STR(BTIF_AV_OFFLOAD_START_REQ_EVT) 203 default: 204 return "UNKNOWN_EVENT"; 205 } 206 } 207 208 /**************************************************************************** 209 * Local helper functions 210 ****************************************************************************/ 211 /******************************************************************************* 212 * 213 * Function btif_initiate_av_open_timer_timeout 214 * 215 * Description Timer to trigger AV open if the remote headset establishes 216 * RC connection w/o AV connection. The timer is needed to IOP 217 * with headsets that do establish AV after RC connection. 218 * 219 * Returns void 220 * 221 ******************************************************************************/ 222 static void btif_initiate_av_open_timer_timeout(UNUSED_ATTR void* data) { 223 RawAddress peer_addr; 224 btif_av_connect_req_t connect_req; 225 226 /* is there at least one RC connection - There should be */ 227 if (btif_rc_get_connected_peer(&peer_addr)) { 228 BTIF_TRACE_DEBUG("%s: Issuing connect to the remote RC peer", __func__); 229 /* In case of AVRCP connection request, we will initiate SRC connection */ 230 connect_req.target_bda = &peer_addr; 231 if (bt_av_sink_callbacks != NULL) 232 connect_req.uuid = UUID_SERVCLASS_AUDIO_SINK; 233 else if (bt_av_src_callbacks != NULL) 234 connect_req.uuid = UUID_SERVCLASS_AUDIO_SOURCE; 235 btif_dispatch_sm_event(BTIF_AV_CONNECT_REQ_EVT, (char*)&connect_req, 236 sizeof(connect_req)); 237 } else { 238 BTIF_TRACE_ERROR("%s: No connected RC peers", __func__); 239 } 240 } 241 242 /***************************************************************************** 243 * Static functions 244 *****************************************************************************/ 245 246 /******************************************************************************* 247 * 248 * Function btif_report_connection_state 249 * 250 * Description Updates the components via the callbacks about the 251 * connection state of a2dp connection. 252 * 253 * Returns None 254 * 255 ******************************************************************************/ 256 static void btif_report_connection_state(btav_connection_state_t state, 257 RawAddress* bd_addr) { 258 if (bt_av_sink_callbacks != NULL) { 259 HAL_CBACK(bt_av_sink_callbacks, connection_state_cb, state, bd_addr); 260 } else if (bt_av_src_callbacks != NULL) { 261 HAL_CBACK(bt_av_src_callbacks, connection_state_cb, state, bd_addr); 262 } 263 } 264 265 /******************************************************************************* 266 * 267 * Function btif_report_audio_state 268 * 269 * Description Updates the components via the callbacks about the audio 270 * state of a2dp connection. The state is updated when either 271 * the remote ends starts streaming (started state) or whenever 272 * it transitions out of started state (to opened or streaming) 273 * state. 274 * 275 * Returns None 276 * 277 ******************************************************************************/ 278 static void btif_report_audio_state(btav_audio_state_t state, 279 RawAddress* bd_addr) { 280 if (bt_av_sink_callbacks != NULL) { 281 HAL_CBACK(bt_av_sink_callbacks, audio_state_cb, state, bd_addr); 282 } else if (bt_av_src_callbacks != NULL) { 283 HAL_CBACK(bt_av_src_callbacks, audio_state_cb, state, bd_addr); 284 } 285 } 286 287 static void btif_update_source_codec(void* p_data) { 288 BTIF_TRACE_DEBUG("%s", __func__); 289 290 // copy to avoid alignment problems 291 btav_a2dp_codec_config_t req; 292 memcpy(&req, p_data, sizeof(req)); 293 294 btif_a2dp_source_encoder_user_config_update_req(req); 295 } 296 297 static void btif_report_source_codec_state(UNUSED_ATTR void* p_data) { 298 btav_a2dp_codec_config_t codec_config; 299 std::vector<btav_a2dp_codec_config_t> codecs_local_capabilities; 300 std::vector<btav_a2dp_codec_config_t> codecs_selectable_capabilities; 301 302 A2dpCodecs* a2dp_codecs = bta_av_get_a2dp_codecs(); 303 if (a2dp_codecs == nullptr) return; 304 if (!a2dp_codecs->getCodecConfigAndCapabilities( 305 &codec_config, &codecs_local_capabilities, 306 &codecs_selectable_capabilities)) { 307 BTIF_TRACE_WARNING( 308 "%s: error reporting audio source codec state: " 309 "cannot get codec config and capabilities", 310 __func__); 311 return; 312 } 313 if (bt_av_src_callbacks != NULL) { 314 HAL_CBACK(bt_av_src_callbacks, audio_config_cb, codec_config, 315 codecs_local_capabilities, codecs_selectable_capabilities); 316 } 317 } 318 319 /***************************************************************************** 320 * 321 * Function btif_av_state_idle_handler 322 * 323 * Description State managing disconnected AV link 324 * 325 * Returns true if event was processed, false otherwise 326 * 327 ******************************************************************************/ 328 329 static bool btif_av_state_idle_handler(btif_sm_event_t event, void* p_data) { 330 BTIF_TRACE_DEBUG("%s: event=%s flags=0x%x", __func__, 331 dump_av_sm_event_name((btif_av_sm_event_t)event), 332 btif_av_cb.flags); 333 334 switch (event) { 335 case BTIF_SM_ENTER_EVT: 336 /* clear the peer_bda */ 337 btif_av_cb.peer_bda = RawAddress::kEmpty; 338 btif_av_cb.flags = 0; 339 btif_av_cb.edr = 0; 340 bta_av_co_init(btif_av_cb.codec_priorities); 341 btif_a2dp_on_idle(); 342 break; 343 344 case BTIF_SM_EXIT_EVT: 345 break; 346 347 case BTA_AV_ENABLE_EVT: 348 break; 349 350 case BTA_AV_REGISTER_EVT: 351 btif_av_cb.bta_handle = ((tBTA_AV*)p_data)->registr.hndl; 352 break; 353 354 case BTA_AV_PENDING_EVT: 355 case BTIF_AV_CONNECT_REQ_EVT: { 356 if (event == BTIF_AV_CONNECT_REQ_EVT) { 357 btif_av_connect_req_t* connect_req_p = (btif_av_connect_req_t*)p_data; 358 btif_av_cb.peer_bda = *connect_req_p->target_bda; 359 btif_av_cb.self_initiated_connection = true; 360 BTA_AvOpen(btif_av_cb.peer_bda, btif_av_cb.bta_handle, true, 361 BTA_SEC_AUTHENTICATE, connect_req_p->uuid); 362 } else if (event == BTA_AV_PENDING_EVT) { 363 btif_av_cb.peer_bda = ((tBTA_AV*)p_data)->pend.bd_addr; 364 btif_av_cb.self_initiated_connection = false; 365 if (bt_av_src_callbacks != NULL) { 366 BTA_AvOpen(btif_av_cb.peer_bda, btif_av_cb.bta_handle, true, 367 BTA_SEC_AUTHENTICATE, UUID_SERVCLASS_AUDIO_SOURCE); 368 } 369 if (bt_av_sink_callbacks != NULL) { 370 BTA_AvOpen(btif_av_cb.peer_bda, btif_av_cb.bta_handle, true, 371 BTA_SEC_AUTHENTICATE, UUID_SERVCLASS_AUDIO_SINK); 372 } 373 } 374 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_OPENING); 375 } break; 376 377 case BTA_AV_RC_OPEN_EVT: 378 /* IOP_FIX: Jabra 620 only does RC open without AV open whenever it 379 * connects. So 380 * as per the AV WP, an AVRC connection cannot exist without an AV 381 * connection. Therefore, 382 * we initiate an AV connection if an RC_OPEN_EVT is received when we are 383 * in AV_CLOSED state. 384 * We initiate the AV connection after a small 3s timeout to avoid any 385 * collisions from the 386 * headsets, as some headsets initiate the AVRC connection first and then 387 * immediately initiate the AV connection 388 * 389 * TODO: We may need to do this only on an AVRCP Play. FixMe 390 */ 391 392 BTIF_TRACE_WARNING("%s: BTA_AV_RC_OPEN_EVT received w/o AV", __func__); 393 alarm_set_on_mloop(av_open_on_rc_timer, BTIF_TIMEOUT_AV_OPEN_ON_RC_MS, 394 btif_initiate_av_open_timer_timeout, NULL); 395 btif_rc_handler(event, (tBTA_AV*)p_data); 396 break; 397 398 case BTA_AV_RC_BROWSE_OPEN_EVT: 399 BTIF_TRACE_DEBUG("%s: BTA_AV_RC_BROWSE_OPEN_EVT received", __func__); 400 btif_rc_handler(event, (tBTA_AV*)p_data); 401 break; 402 403 case BTIF_AV_SOURCE_CONFIG_REQ_EVT: 404 btif_update_source_codec(p_data); 405 break; 406 407 case BTIF_AV_SOURCE_CONFIG_UPDATED_EVT: 408 btif_report_source_codec_state(p_data); 409 break; 410 411 /* 412 * In case Signalling channel is not down 413 * and remote started Streaming Procedure 414 * we have to handle config and open event in 415 * idle_state. We hit these scenarios while running 416 * PTS test case for AVRCP Controller 417 */ 418 case BTIF_AV_SINK_CONFIG_REQ_EVT: { 419 btif_av_sink_config_req_t req; 420 // copy to avoid alignment problems 421 memcpy(&req, p_data, sizeof(req)); 422 423 BTIF_TRACE_WARNING( 424 "%s: BTIF_AV_SINK_CONFIG_REQ_EVT sample_rate=%d " 425 "channel_count=%d", 426 __func__, req.sample_rate, req.channel_count); 427 if (bt_av_sink_callbacks != NULL) { 428 HAL_CBACK(bt_av_sink_callbacks, audio_config_cb, &(req.peer_bd), 429 req.sample_rate, req.channel_count); 430 } 431 } break; 432 433 case BTA_AV_OPEN_EVT: { 434 tBTA_AV* p_bta_data = (tBTA_AV*)p_data; 435 btav_connection_state_t state; 436 btif_sm_state_t av_state; 437 BTIF_TRACE_WARNING("%s: BTA_AV_OPEN_EVT status=%d, edr=0x%x", __func__, 438 p_bta_data->open.status, p_bta_data->open.edr); 439 440 if (p_bta_data->open.status == BTA_AV_SUCCESS) { 441 state = BTAV_CONNECTION_STATE_CONNECTED; 442 av_state = BTIF_AV_STATE_OPENED; 443 btif_av_cb.edr = p_bta_data->open.edr; 444 445 btif_av_cb.peer_sep = p_bta_data->open.sep; 446 } else { 447 BTIF_TRACE_WARNING("%s: BTA_AV_OPEN_EVT::FAILED status=%d", __func__, 448 p_bta_data->open.status); 449 state = BTAV_CONNECTION_STATE_DISCONNECTED; 450 av_state = BTIF_AV_STATE_IDLE; 451 } 452 453 /* inform the application of the event */ 454 btif_report_connection_state(state, &(btif_av_cb.peer_bda)); 455 /* change state to open/idle based on the status */ 456 btif_sm_change_state(btif_av_cb.sm_handle, av_state); 457 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) { 458 /* if queued PLAY command, send it now */ 459 btif_rc_check_handle_pending_play( 460 p_bta_data->open.bd_addr, 461 (p_bta_data->open.status == BTA_AV_SUCCESS)); 462 } else if ((btif_av_cb.peer_sep == AVDT_TSEP_SRC) && 463 (p_bta_data->open.status == BTA_AV_SUCCESS)) { 464 /* Bring up AVRCP connection too */ 465 BTA_AvOpenRc(btif_av_cb.bta_handle); 466 } 467 btif_queue_advance(); 468 } break; 469 470 case BTA_AV_REMOTE_CMD_EVT: 471 case BTA_AV_VENDOR_CMD_EVT: 472 case BTA_AV_META_MSG_EVT: 473 case BTA_AV_RC_FEAT_EVT: 474 case BTA_AV_REMOTE_RSP_EVT: 475 btif_rc_handler(event, (tBTA_AV*)p_data); 476 break; 477 478 case BTA_AV_RC_CLOSE_EVT: 479 BTIF_TRACE_DEBUG("%s: BTA_AV_RC_CLOSE_EVT: Stopping AV timer.", __func__); 480 alarm_cancel(av_open_on_rc_timer); 481 btif_rc_handler(event, (tBTA_AV*)p_data); 482 break; 483 484 case BTIF_AV_OFFLOAD_START_REQ_EVT: 485 BTIF_TRACE_ERROR( 486 "%s: BTIF_AV_OFFLOAD_START_REQ_EVT: Stream not Started IDLE", 487 __func__); 488 btif_a2dp_on_offload_started(BTA_AV_FAIL); 489 break; 490 491 default: 492 BTIF_TRACE_WARNING("%s: unhandled event=%s", __func__, 493 dump_av_sm_event_name((btif_av_sm_event_t)event)); 494 return false; 495 } 496 497 return true; 498 } 499 /***************************************************************************** 500 * 501 * Function btif_av_state_opening_handler 502 * 503 * Description Intermediate state managing events during establishment 504 * of avdtp channel 505 * 506 * Returns true if event was processed, false otherwise 507 * 508 ******************************************************************************/ 509 510 static bool btif_av_state_opening_handler(btif_sm_event_t event, void* p_data) { 511 BTIF_TRACE_DEBUG("%s: event=%s flags=0x%x", __func__, 512 dump_av_sm_event_name((btif_av_sm_event_t)event), 513 btif_av_cb.flags); 514 515 switch (event) { 516 case BTIF_SM_ENTER_EVT: 517 /* inform the application that we are entering connecting state */ 518 btif_report_connection_state(BTAV_CONNECTION_STATE_CONNECTING, 519 &(btif_av_cb.peer_bda)); 520 break; 521 522 case BTIF_SM_EXIT_EVT: 523 break; 524 525 case BTA_AV_REJECT_EVT: 526 BTIF_TRACE_WARNING("%s: Received BTA_AV_REJECT_EVT", __func__); 527 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 528 &(btif_av_cb.peer_bda)); 529 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE); 530 if (btif_av_cb.self_initiated_connection) { 531 btif_queue_advance(); 532 } 533 break; 534 535 case BTA_AV_OPEN_EVT: { 536 tBTA_AV* p_bta_data = (tBTA_AV*)p_data; 537 btav_connection_state_t state; 538 btif_sm_state_t av_state; 539 BTIF_TRACE_WARNING("%s: BTA_AV_OPEN_EVT status=%d, edr=0x%x", __func__, 540 p_bta_data->open.status, p_bta_data->open.edr); 541 542 if (p_bta_data->open.status == BTA_AV_SUCCESS) { 543 state = BTAV_CONNECTION_STATE_CONNECTED; 544 av_state = BTIF_AV_STATE_OPENED; 545 btif_av_cb.edr = p_bta_data->open.edr; 546 547 btif_av_cb.peer_sep = p_bta_data->open.sep; 548 } else { 549 BTIF_TRACE_WARNING("%s: BTA_AV_OPEN_EVT::FAILED status: %d", __func__, 550 p_bta_data->open.status); 551 RawAddress peer_addr; 552 uint8_t peer_handle = BTRC_HANDLE_NONE; 553 if (btif_rc_get_connected_peer(&peer_addr) && 554 btif_av_cb.peer_bda == peer_addr) { 555 /* 556 * Disconnect AVRCP connection, if 557 * A2DP conneciton failed, for any reason 558 */ 559 BTIF_TRACE_WARNING("%s: Disconnecting AVRCP: peer_addr=%s", __func__, 560 peer_addr.ToString().c_str()); 561 peer_handle = btif_rc_get_connected_peer_handle(peer_addr); 562 if (peer_handle != BTRC_HANDLE_NONE) { 563 BTA_AvCloseRc(peer_handle); 564 } 565 } 566 state = BTAV_CONNECTION_STATE_DISCONNECTED; 567 av_state = BTIF_AV_STATE_IDLE; 568 } 569 570 /* inform the application of the event */ 571 btif_report_connection_state(state, &(btif_av_cb.peer_bda)); 572 /* change state to open/idle based on the status */ 573 btif_sm_change_state(btif_av_cb.sm_handle, av_state); 574 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) { 575 /* if queued PLAY command, send it now */ 576 btif_rc_check_handle_pending_play( 577 p_bta_data->open.bd_addr, 578 (p_bta_data->open.status == BTA_AV_SUCCESS)); 579 } else if ((btif_av_cb.peer_sep == AVDT_TSEP_SRC) && 580 (p_bta_data->open.status == BTA_AV_SUCCESS)) { 581 /* Bring up AVRCP connection too */ 582 BTA_AvOpenRc(btif_av_cb.bta_handle); 583 } 584 if (btif_av_cb.self_initiated_connection) { 585 btif_queue_advance(); 586 } 587 } break; 588 589 case BTIF_AV_SOURCE_CONFIG_REQ_EVT: 590 btif_update_source_codec(p_data); 591 break; 592 593 case BTIF_AV_SOURCE_CONFIG_UPDATED_EVT: 594 btif_report_source_codec_state(p_data); 595 break; 596 597 case BTIF_AV_SINK_CONFIG_REQ_EVT: { 598 btif_av_sink_config_req_t req; 599 // copy to avoid alignment problems 600 memcpy(&req, p_data, sizeof(req)); 601 602 BTIF_TRACE_WARNING( 603 "%s: BTIF_AV_SINK_CONFIG_REQ_EVT sample_rate=%d " 604 "channel_count=%d", 605 __func__, req.sample_rate, req.channel_count); 606 if (btif_av_cb.peer_sep == AVDT_TSEP_SRC && 607 bt_av_sink_callbacks != NULL) { 608 HAL_CBACK(bt_av_sink_callbacks, audio_config_cb, &(btif_av_cb.peer_bda), 609 req.sample_rate, req.channel_count); 610 } 611 } break; 612 613 case BTIF_AV_CONNECT_REQ_EVT: { 614 // Check for device, if same device which moved to opening then ignore 615 // callback 616 btif_av_connect_req_t* connect_req_p = (btif_av_connect_req_t*)p_data; 617 RawAddress& target_bda = *connect_req_p->target_bda; 618 if (btif_av_cb.peer_bda == target_bda) { 619 BTIF_TRACE_WARNING( 620 "%s: device %s is already connecting, ignore Connect request", 621 __func__, btif_av_cb.peer_bda.ToString().c_str()); 622 } else { 623 BTIF_TRACE_WARNING( 624 "%s: device %s is already connecting, reject Connect request to %s", 625 __func__, btif_av_cb.peer_bda.ToString().c_str(), 626 target_bda.ToString().c_str()); 627 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 628 &target_bda); 629 } 630 // Ignore all connection request if we are already opening 631 btif_queue_advance(); 632 } break; 633 634 case BTA_AV_PENDING_EVT: { 635 // Check for device, if same device which moved to opening then ignore 636 // callback 637 const RawAddress& bd_addr = ((tBTA_AV*)p_data)->pend.bd_addr; 638 if (bd_addr == btif_av_cb.peer_bda) { 639 BTIF_TRACE_WARNING( 640 "%s: device %s is already connecting, ignore incoming request", 641 __func__, btif_av_cb.peer_bda.ToString().c_str()); 642 } else { 643 BTIF_TRACE_WARNING( 644 "%s: device %s is already connecting, reject incoming request " 645 "from %s", 646 __func__, btif_av_cb.peer_bda.ToString().c_str(), 647 bd_addr.ToString().c_str()); 648 BTA_AvDisconnect(bd_addr); 649 } 650 } break; 651 652 case BTIF_AV_OFFLOAD_START_REQ_EVT: 653 BTIF_TRACE_ERROR( 654 "%s: BTIF_AV_OFFLOAD_START_REQ_EVT: Stream not Started OPENING", 655 __func__); 656 btif_a2dp_on_offload_started(BTA_AV_FAIL); 657 break; 658 659 case BTA_AV_CLOSE_EVT: 660 btif_a2dp_on_stopped(NULL); 661 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 662 &(btif_av_cb.peer_bda)); 663 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE); 664 if (btif_av_cb.self_initiated_connection) { 665 btif_queue_advance(); 666 } 667 break; 668 669 case BTIF_AV_DISCONNECT_REQ_EVT: 670 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 671 &(btif_av_cb.peer_bda)); 672 BTA_AvClose(btif_av_cb.bta_handle); 673 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE); 674 if (btif_av_cb.self_initiated_connection) { 675 btif_queue_advance(); 676 } 677 break; 678 679 CHECK_RC_EVENT(event, (tBTA_AV*)p_data); 680 681 default: 682 BTIF_TRACE_WARNING("%s: unhandled event=%s", __func__, 683 dump_av_sm_event_name((btif_av_sm_event_t)event)); 684 return false; 685 } 686 return true; 687 } 688 689 /***************************************************************************** 690 * 691 * Function btif_av_state_closing_handler 692 * 693 * Description Intermediate state managing events during closing 694 * of avdtp channel 695 * 696 * Returns true if event was processed, false otherwise 697 * 698 ******************************************************************************/ 699 700 static bool btif_av_state_closing_handler(btif_sm_event_t event, void* p_data) { 701 BTIF_TRACE_DEBUG("%s: event=%s flags=0x%x", __func__, 702 dump_av_sm_event_name((btif_av_sm_event_t)event), 703 btif_av_cb.flags); 704 705 switch (event) { 706 case BTIF_SM_ENTER_EVT: 707 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) { 708 /* immediately stop transmission of frames */ 709 btif_a2dp_source_set_tx_flush(true); 710 /* wait for audioflinger to stop a2dp */ 711 } 712 if (btif_av_cb.peer_sep == AVDT_TSEP_SRC) { 713 btif_a2dp_sink_set_rx_flush(true); 714 } 715 break; 716 717 case BTA_AV_STOP_EVT: 718 case BTIF_AV_STOP_STREAM_REQ_EVT: 719 btif_a2dp_on_stopped(NULL); 720 break; 721 722 case BTIF_SM_EXIT_EVT: 723 break; 724 725 case BTIF_AV_SOURCE_CONFIG_REQ_EVT: 726 btif_update_source_codec(p_data); 727 break; 728 729 case BTIF_AV_SOURCE_CONFIG_UPDATED_EVT: 730 btif_report_source_codec_state(p_data); 731 break; 732 733 case BTA_AV_CLOSE_EVT: 734 735 /* inform the application that we are disconnecting */ 736 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 737 &(btif_av_cb.peer_bda)); 738 739 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE); 740 break; 741 742 /* Handle the RC_CLOSE event for the cleanup */ 743 case BTA_AV_RC_CLOSE_EVT: 744 btif_rc_handler(event, (tBTA_AV*)p_data); 745 break; 746 747 /* Handle the RC_BROWSE_CLOSE event for tetsing*/ 748 case BTA_AV_RC_BROWSE_CLOSE_EVT: 749 btif_rc_handler(event, (tBTA_AV*)p_data); 750 break; 751 752 case BTIF_AV_OFFLOAD_START_REQ_EVT: 753 BTIF_TRACE_ERROR( 754 "%s: BTIF_AV_OFFLOAD_START_REQ_EVT: Stream not Started Closing", 755 __func__); 756 btif_a2dp_on_offload_started(BTA_AV_FAIL); 757 break; 758 759 default: 760 BTIF_TRACE_WARNING("%s: unhandled event=%s", __func__, 761 dump_av_sm_event_name((btif_av_sm_event_t)event)); 762 return false; 763 } 764 return true; 765 } 766 767 /***************************************************************************** 768 * 769 * Function btif_av_state_opened_handler 770 * 771 * Description Handles AV events while AVDTP is in OPEN state 772 * 773 * Returns true if event was processed, false otherwise 774 * 775 ******************************************************************************/ 776 777 static bool btif_av_state_opened_handler(btif_sm_event_t event, void* p_data) { 778 tBTA_AV* p_av = (tBTA_AV*)p_data; 779 780 BTIF_TRACE_DEBUG("%s: event=%s flags=0x%x", __func__, 781 dump_av_sm_event_name((btif_av_sm_event_t)event), 782 btif_av_cb.flags); 783 784 if ((event == BTA_AV_REMOTE_CMD_EVT) && 785 (btif_av_cb.flags & BTIF_AV_FLAG_REMOTE_SUSPEND) && 786 (p_av->remote_cmd.rc_id == BTA_AV_RC_PLAY)) { 787 BTIF_TRACE_EVENT("%s: Resetting remote suspend flag on RC PLAY", __func__); 788 btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND; 789 } 790 791 switch (event) { 792 case BTIF_SM_ENTER_EVT: 793 btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_STOP; 794 btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_START; 795 break; 796 797 case BTIF_SM_EXIT_EVT: 798 btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_START; 799 break; 800 801 case BTIF_AV_START_STREAM_REQ_EVT: 802 if (btif_av_cb.peer_sep != AVDT_TSEP_SRC) btif_a2dp_source_setup_codec(); 803 BTA_AvStart(); 804 btif_av_cb.flags |= BTIF_AV_FLAG_PENDING_START; 805 break; 806 807 case BTA_AV_START_EVT: { 808 BTIF_TRACE_WARNING( 809 "%s: BTA_AV_START_EVT status=%d suspending=%d initiator=%d " 810 "flags=0x%x", 811 __func__, p_av->start.status, p_av->start.suspending, 812 p_av->start.initiator, btif_av_cb.flags); 813 814 if ((p_av->start.status == BTA_SUCCESS) && 815 (p_av->start.suspending == true)) 816 return true; 817 818 /* if remote tries to start a2dp when DUT is a2dp source 819 * then suspend. In case a2dp is sink and call is active 820 * then disconnect the AVDTP channel 821 */ 822 if (!(btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START)) { 823 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) { 824 BTIF_TRACE_WARNING("%s: trigger suspend as remote initiated!!", 825 __func__); 826 btif_dispatch_sm_event(BTIF_AV_SUSPEND_STREAM_REQ_EVT, NULL, 0); 827 } 828 } 829 830 /* In case peer is A2DP SRC we do not want to ack commands on UIPC*/ 831 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) { 832 if (btif_a2dp_on_started( 833 &p_av->start, 834 ((btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) != 0))) { 835 /* only clear pending flag after acknowledgement */ 836 btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_START; 837 } 838 } 839 840 /* remain in open state if status failed */ 841 if (p_av->start.status != BTA_AV_SUCCESS) return false; 842 843 if (btif_av_cb.peer_sep == AVDT_TSEP_SRC) { 844 btif_a2dp_sink_set_rx_flush( 845 false); /* remove flush state, ready for streaming*/ 846 } 847 848 /* change state to started, send acknowledgement if start is pending */ 849 if (btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) { 850 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) 851 btif_a2dp_on_started(NULL, true); 852 /* pending start flag will be cleared when exit current state */ 853 } 854 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_STARTED); 855 856 } break; 857 858 case BTIF_AV_SOURCE_CONFIG_REQ_EVT: 859 btif_update_source_codec(p_data); 860 break; 861 862 case BTIF_AV_SOURCE_CONFIG_UPDATED_EVT: 863 btif_report_source_codec_state(p_data); 864 break; 865 866 case BTIF_AV_DISCONNECT_REQ_EVT: 867 BTA_AvClose(btif_av_cb.bta_handle); 868 if (btif_av_cb.peer_sep == AVDT_TSEP_SRC) { 869 BTA_AvCloseRc(btif_av_cb.bta_handle); 870 } 871 872 /* inform the application that we are disconnecting */ 873 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTING, 874 &(btif_av_cb.peer_bda)); 875 break; 876 877 case BTA_AV_CLOSE_EVT: 878 /* avdtp link is closed */ 879 btif_a2dp_on_stopped(NULL); 880 881 /* inform the application that we are disconnected */ 882 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 883 &(btif_av_cb.peer_bda)); 884 885 /* change state to idle, send acknowledgement if start is pending */ 886 if (btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) { 887 btif_a2dp_command_ack(A2DP_CTRL_ACK_FAILURE); 888 /* pending start flag will be cleared when exit current state */ 889 } 890 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE); 891 break; 892 893 case BTA_AV_RECONFIG_EVT: 894 if ((btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) && 895 (p_av->reconfig.status == BTA_AV_SUCCESS)) { 896 APPL_TRACE_WARNING("reconfig done BTA_AVstart()"); 897 BTA_AvStart(); 898 } else if (btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) { 899 btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_START; 900 btif_a2dp_command_ack(A2DP_CTRL_ACK_FAILURE); 901 } 902 break; 903 904 case BTIF_AV_CONNECT_REQ_EVT: { 905 btif_av_connect_req_t* connect_req_p = (btif_av_connect_req_t*)p_data; 906 RawAddress& target_bda = *connect_req_p->target_bda; 907 if (btif_av_cb.peer_bda == target_bda) { 908 BTIF_TRACE_WARNING( 909 "%s: Ignore BTIF_AV_CONNECT_REQ_EVT for same device: target_bda=%s", 910 __func__, target_bda.ToString().c_str()); 911 } else { 912 BTIF_TRACE_WARNING( 913 "%s: Moved to opened by Other incoming Connect request: " 914 "target_bda=%s", 915 __func__, target_bda.ToString().c_str()); 916 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 917 &target_bda); 918 } 919 btif_queue_advance(); 920 } break; 921 922 case BTIF_AV_OFFLOAD_START_REQ_EVT: 923 BTIF_TRACE_ERROR( 924 "%s: BTIF_AV_OFFLOAD_START_REQ_EVT: Stream not Started Opened", 925 __func__); 926 btif_a2dp_on_offload_started(BTA_AV_FAIL); 927 break; 928 929 CHECK_RC_EVENT(event, (tBTA_AV*)p_data); 930 931 default: 932 BTIF_TRACE_WARNING("%s: unhandled event=%s", __func__, 933 dump_av_sm_event_name((btif_av_sm_event_t)event)); 934 return false; 935 } 936 return true; 937 } 938 939 /***************************************************************************** 940 * 941 * Function btif_av_state_started_handler 942 * 943 * Description Handles AV events while A2DP stream is started 944 * 945 * Returns true if event was processed, false otherwise 946 * 947 ******************************************************************************/ 948 949 static bool btif_av_state_started_handler(btif_sm_event_t event, void* p_data) { 950 tBTA_AV* p_av = (tBTA_AV*)p_data; 951 952 BTIF_TRACE_DEBUG("%s: event=%s flags=0x%x", __func__, 953 dump_av_sm_event_name((btif_av_sm_event_t)event), 954 btif_av_cb.flags); 955 956 switch (event) { 957 case BTIF_SM_ENTER_EVT: 958 959 /* we are again in started state, clear any remote suspend flags */ 960 btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND; 961 962 /** 963 * Report to components above that we have entered the streaming 964 * stage, this should usually be followed by focus grant. 965 * see update_audio_focus_state() 966 */ 967 btif_report_audio_state(BTAV_AUDIO_STATE_STARTED, &(btif_av_cb.peer_bda)); 968 break; 969 970 case BTIF_SM_EXIT_EVT: 971 break; 972 973 case BTIF_AV_START_STREAM_REQ_EVT: 974 /* we were remotely started, just ack back the local request */ 975 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) 976 btif_a2dp_on_started(NULL, true); 977 break; 978 979 case BTIF_AV_SOURCE_CONFIG_REQ_EVT: 980 btif_update_source_codec(p_data); 981 break; 982 983 case BTIF_AV_SOURCE_CONFIG_UPDATED_EVT: 984 btif_report_source_codec_state(p_data); 985 break; 986 987 /* fixme -- use suspend = true always to work around issue with BTA AV */ 988 case BTIF_AV_STOP_STREAM_REQ_EVT: 989 case BTIF_AV_SUSPEND_STREAM_REQ_EVT: 990 BTIF_TRACE_WARNING("%s: event=%s flags=0x%x", __func__, 991 dump_av_sm_event_name((btif_av_sm_event_t)event), 992 btif_av_cb.flags); 993 /* set pending flag to ensure btif task is not trying to restart 994 stream while suspend is in progress */ 995 btif_av_cb.flags |= BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING; 996 997 /* if we were remotely suspended but suspend locally, local suspend 998 always overrides */ 999 btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND; 1000 1001 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) { 1002 /* 1003 * Immediately stop transmission of frames while suspend is 1004 * pending. 1005 */ 1006 btif_a2dp_source_set_tx_flush(true); 1007 } 1008 1009 if (btif_av_cb.peer_sep == AVDT_TSEP_SRC) { 1010 btif_a2dp_on_stopped(NULL); 1011 } 1012 1013 BTA_AvStop(true); 1014 break; 1015 1016 case BTIF_AV_DISCONNECT_REQ_EVT: 1017 BTIF_TRACE_WARNING("%s: event=%s flags=0x%x", __func__, 1018 dump_av_sm_event_name((btif_av_sm_event_t)event), 1019 btif_av_cb.flags); 1020 1021 /* request avdtp to close */ 1022 BTA_AvClose(btif_av_cb.bta_handle); 1023 if (btif_av_cb.peer_sep == AVDT_TSEP_SRC) { 1024 BTA_AvCloseRc(btif_av_cb.bta_handle); 1025 } 1026 1027 /* inform the application that we are disconnecting */ 1028 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTING, 1029 &(btif_av_cb.peer_bda)); 1030 1031 /* wait in closing state until fully closed */ 1032 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_CLOSING); 1033 break; 1034 1035 case BTA_AV_SUSPEND_EVT: 1036 BTIF_TRACE_WARNING( 1037 "%s: BTA_AV_SUSPEND_EVT status=%d initiator=%d flags=0x%x", __func__, 1038 p_av->suspend.status, p_av->suspend.initiator, btif_av_cb.flags); 1039 1040 /* a2dp suspended, stop media task until resumed */ 1041 btif_a2dp_on_suspended(&p_av->suspend); 1042 1043 /* if not successful, remain in current state */ 1044 if (p_av->suspend.status != BTA_AV_SUCCESS) { 1045 btif_av_cb.flags &= ~BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING; 1046 1047 if (btif_av_cb.peer_sep == AVDT_TSEP_SNK) { 1048 /* suspend failed, reset back tx flush state */ 1049 btif_a2dp_source_set_tx_flush(false); 1050 } 1051 return false; 1052 } 1053 1054 if (p_av->suspend.initiator != true) { 1055 /* remote suspend, notify HAL and await audioflinger to 1056 suspend/stop stream */ 1057 1058 /* set remote suspend flag to block media task from restarting 1059 stream only if we did not already initiate a local suspend */ 1060 if ((btif_av_cb.flags & BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING) == 0) 1061 btif_av_cb.flags |= BTIF_AV_FLAG_REMOTE_SUSPEND; 1062 1063 btif_report_audio_state(BTAV_AUDIO_STATE_REMOTE_SUSPEND, 1064 &(btif_av_cb.peer_bda)); 1065 } else { 1066 btif_report_audio_state(BTAV_AUDIO_STATE_STOPPED, 1067 &(btif_av_cb.peer_bda)); 1068 } 1069 1070 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_OPENED); 1071 1072 /* suspend completed and state changed, clear pending status */ 1073 btif_av_cb.flags &= ~BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING; 1074 break; 1075 1076 case BTA_AV_STOP_EVT: 1077 BTIF_TRACE_WARNING("%s: event=%s flags=0x%x", __func__, 1078 dump_av_sm_event_name((btif_av_sm_event_t)event), 1079 btif_av_cb.flags); 1080 1081 btif_av_cb.flags |= BTIF_AV_FLAG_PENDING_STOP; 1082 btif_a2dp_on_stopped(&p_av->suspend); 1083 1084 btif_report_audio_state(BTAV_AUDIO_STATE_STOPPED, &(btif_av_cb.peer_bda)); 1085 1086 /* if stop was successful, change state to open */ 1087 if (p_av->suspend.status == BTA_AV_SUCCESS) 1088 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_OPENED); 1089 1090 break; 1091 1092 case BTA_AV_CLOSE_EVT: 1093 BTIF_TRACE_WARNING("%s: event=%s flags=0x%x", __func__, 1094 dump_av_sm_event_name((btif_av_sm_event_t)event), 1095 btif_av_cb.flags); 1096 1097 btif_av_cb.flags |= BTIF_AV_FLAG_PENDING_STOP; 1098 1099 /* avdtp link is closed */ 1100 btif_a2dp_on_stopped(NULL); 1101 1102 /* inform the application that we are disconnected */ 1103 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 1104 &(btif_av_cb.peer_bda)); 1105 1106 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE); 1107 break; 1108 1109 case BTIF_AV_OFFLOAD_START_REQ_EVT: 1110 BTA_AvOffloadStart(btif_av_cb.bta_handle); 1111 break; 1112 1113 case BTA_AV_OFFLOAD_START_RSP_EVT: 1114 btif_a2dp_on_offload_started(p_av->status); 1115 break; 1116 1117 CHECK_RC_EVENT(event, (tBTA_AV*)p_data); 1118 1119 default: 1120 BTIF_TRACE_WARNING("%s: unhandled event=%s", __func__, 1121 dump_av_sm_event_name((btif_av_sm_event_t)event)); 1122 return false; 1123 } 1124 1125 return true; 1126 } 1127 1128 /***************************************************************************** 1129 * Local event handlers 1130 *****************************************************************************/ 1131 1132 static void btif_av_handle_event(uint16_t event, char* p_param) { 1133 BTIF_TRACE_EVENT("%s: event=%s", __func__, 1134 dump_av_sm_event_name((btif_av_sm_event_t)event)); 1135 switch (event) { 1136 case BTIF_AV_CLEANUP_REQ_EVT: 1137 btif_a2dp_source_shutdown(); 1138 btif_a2dp_sink_shutdown(); 1139 break; 1140 1141 case BTA_AV_REGISTER_EVT: 1142 if (btif_av_cb.sm_handle == NULL) { 1143 btif_av_cb.bta_handle = ((tBTA_AV*)p_param)->registr.hndl; 1144 BTIF_TRACE_DEBUG("%s: BTA AV Handle updated", __func__); 1145 } 1146 /* FALLTHROUGH */ 1147 default: 1148 btif_sm_dispatch(btif_av_cb.sm_handle, event, (void*)p_param); 1149 btif_av_event_free_data(event, p_param); 1150 } 1151 } 1152 1153 void btif_av_event_deep_copy(uint16_t event, char* p_dest, char* p_src) { 1154 BTIF_TRACE_DEBUG("%s", __func__); 1155 tBTA_AV* av_src = (tBTA_AV*)p_src; 1156 tBTA_AV* av_dest = (tBTA_AV*)p_dest; 1157 1158 // First copy the structure 1159 maybe_non_aligned_memcpy(av_dest, av_src, sizeof(*av_src)); 1160 switch (event) { 1161 case BTA_AV_META_MSG_EVT: 1162 if (av_src->meta_msg.p_data && av_src->meta_msg.len) { 1163 av_dest->meta_msg.p_data = (uint8_t*)osi_calloc(av_src->meta_msg.len); 1164 memcpy(av_dest->meta_msg.p_data, av_src->meta_msg.p_data, 1165 av_src->meta_msg.len); 1166 } 1167 1168 if (av_src->meta_msg.p_msg) { 1169 av_dest->meta_msg.p_msg = (tAVRC_MSG*)osi_calloc(sizeof(tAVRC_MSG)); 1170 memcpy(av_dest->meta_msg.p_msg, av_src->meta_msg.p_msg, 1171 sizeof(tAVRC_MSG)); 1172 1173 tAVRC_MSG* p_msg_src = av_src->meta_msg.p_msg; 1174 tAVRC_MSG* p_msg_dest = av_dest->meta_msg.p_msg; 1175 1176 if ((p_msg_src->hdr.opcode == AVRC_OP_VENDOR) && 1177 (p_msg_src->vendor.p_vendor_data && p_msg_src->vendor.vendor_len)) { 1178 p_msg_dest->vendor.p_vendor_data = 1179 (uint8_t*)osi_calloc(p_msg_src->vendor.vendor_len); 1180 memcpy(p_msg_dest->vendor.p_vendor_data, 1181 p_msg_src->vendor.p_vendor_data, p_msg_src->vendor.vendor_len); 1182 } 1183 } 1184 break; 1185 1186 default: 1187 break; 1188 } 1189 } 1190 1191 static void btif_av_event_free_data(btif_sm_event_t event, void* p_data) { 1192 switch (event) { 1193 case BTA_AV_META_MSG_EVT: { 1194 tBTA_AV* av = (tBTA_AV*)p_data; 1195 osi_free_and_reset((void**)&av->meta_msg.p_data); 1196 1197 if (av->meta_msg.p_msg) { 1198 if (av->meta_msg.p_msg->hdr.opcode == AVRC_OP_VENDOR) { 1199 osi_free(av->meta_msg.p_msg->vendor.p_vendor_data); 1200 } 1201 osi_free_and_reset((void**)&av->meta_msg.p_msg); 1202 } 1203 } break; 1204 1205 default: 1206 break; 1207 } 1208 } 1209 1210 static void bte_av_callback(tBTA_AV_EVT event, tBTA_AV* p_data) { 1211 btif_transfer_context(btif_av_handle_event, event, (char*)p_data, 1212 sizeof(tBTA_AV), btif_av_event_deep_copy); 1213 } 1214 1215 static void bte_av_sink_media_callback(tBTA_AV_EVT event, 1216 tBTA_AV_MEDIA* p_data) { 1217 switch (event) { 1218 case BTA_AV_SINK_MEDIA_DATA_EVT: { 1219 btif_sm_state_t state = btif_sm_get_state(btif_av_cb.sm_handle); 1220 if ((state == BTIF_AV_STATE_STARTED) || (state == BTIF_AV_STATE_OPENED)) { 1221 uint8_t queue_len = btif_a2dp_sink_enqueue_buf((BT_HDR*)p_data); 1222 BTIF_TRACE_DEBUG("%s: packets in sink queue %d", __func__, queue_len); 1223 } 1224 break; 1225 } 1226 case BTA_AV_SINK_MEDIA_CFG_EVT: { 1227 btif_av_sink_config_req_t config_req; 1228 1229 /* send a command to BT Media Task */ 1230 btif_a2dp_sink_update_decoder((uint8_t*)(p_data->avk_config.codec_info)); 1231 /* Switch to BTIF context */ 1232 config_req.sample_rate = 1233 A2DP_GetTrackSampleRate(p_data->avk_config.codec_info); 1234 if (config_req.sample_rate == -1) { 1235 APPL_TRACE_ERROR("%s: cannot get the track frequency", __func__); 1236 break; 1237 } 1238 config_req.channel_count = 1239 A2DP_GetTrackChannelCount(p_data->avk_config.codec_info); 1240 if (config_req.channel_count == -1) { 1241 APPL_TRACE_ERROR("%s: cannot get the channel count", __func__); 1242 break; 1243 } 1244 1245 config_req.peer_bd = p_data->avk_config.bd_addr; 1246 btif_transfer_context(btif_av_handle_event, BTIF_AV_SINK_CONFIG_REQ_EVT, 1247 (char*)&config_req, sizeof(config_req), NULL); 1248 break; 1249 } 1250 default: 1251 break; 1252 } 1253 } 1254 1255 /******************************************************************************* 1256 * 1257 * Function btif_av_init 1258 * 1259 * Description Initializes btif AV if not already done 1260 * 1261 * Returns bt_status_t 1262 * 1263 ******************************************************************************/ 1264 1265 bt_status_t btif_av_init(int service_id) { 1266 if (btif_av_cb.sm_handle == NULL) { 1267 alarm_free(av_open_on_rc_timer); 1268 av_open_on_rc_timer = alarm_new("btif_av.av_open_on_rc_timer"); 1269 1270 switch (service_id) { 1271 case BTA_A2DP_SOURCE_SERVICE_ID: 1272 if (!btif_a2dp_source_startup()) 1273 return BT_STATUS_FAIL; // Already running 1274 break; 1275 case BTA_A2DP_SINK_SERVICE_ID: 1276 if (!btif_a2dp_sink_startup()) 1277 return BT_STATUS_FAIL; // Already running 1278 break; 1279 default: 1280 break; 1281 } 1282 1283 btif_enable_service(service_id); 1284 1285 /* Also initialize the AV state machine */ 1286 btif_av_cb.sm_handle = btif_sm_init( 1287 (const btif_sm_handler_t*)btif_av_state_handlers, BTIF_AV_STATE_IDLE); 1288 } 1289 1290 return BT_STATUS_SUCCESS; 1291 } 1292 1293 /******************************************************************************* 1294 * 1295 * Function init_src 1296 * 1297 * Description Initializes the AV interface for source mode 1298 * 1299 * Returns bt_status_t 1300 * 1301 ******************************************************************************/ 1302 1303 static bt_status_t init_src( 1304 btav_source_callbacks_t* callbacks, 1305 std::vector<btav_a2dp_codec_config_t> codec_priorities) { 1306 BTIF_TRACE_EVENT("%s", __func__); 1307 1308 btif_av_cb.codec_priorities = codec_priorities; 1309 bt_status_t status = btif_av_init(BTA_A2DP_SOURCE_SERVICE_ID); 1310 if (status == BT_STATUS_SUCCESS) bt_av_src_callbacks = callbacks; 1311 1312 return status; 1313 } 1314 1315 /******************************************************************************* 1316 * 1317 * Function init_sink 1318 * 1319 * Description Initializes the AV interface for sink mode 1320 * 1321 * Returns bt_status_t 1322 * 1323 ******************************************************************************/ 1324 1325 static bt_status_t init_sink(btav_sink_callbacks_t* callbacks) { 1326 BTIF_TRACE_EVENT("%s", __func__); 1327 1328 bt_status_t status = btif_av_init(BTA_A2DP_SINK_SERVICE_ID); 1329 if (status == BT_STATUS_SUCCESS) bt_av_sink_callbacks = callbacks; 1330 1331 return status; 1332 } 1333 1334 /******************************************************************************* 1335 * 1336 * Function update_audio_focus_state 1337 * 1338 * Description Updates the final focus state reported by components calling 1339 * this module. 1340 * 1341 * Returns None 1342 * 1343 ******************************************************************************/ 1344 static void update_audio_focus_state(int state) { 1345 BTIF_TRACE_DEBUG("%s: state=%d", __func__, state); 1346 btif_a2dp_sink_set_focus_state_req((btif_a2dp_sink_focus_state_t)state); 1347 } 1348 1349 /******************************************************************************* 1350 * 1351 * Function update_audio_track_gain 1352 * 1353 * Description Updates the track gain (used for ducking). 1354 * 1355 * Returns None 1356 * 1357 ******************************************************************************/ 1358 static void update_audio_track_gain(float gain) { 1359 BTIF_TRACE_DEBUG("%s: gain=%f", __func__, gain); 1360 btif_a2dp_sink_set_audio_track_gain(gain); 1361 } 1362 1363 /******************************************************************************* 1364 * 1365 * Function connect 1366 * 1367 * Description Establishes the AV signalling channel with the remote 1368 * headset 1369 * 1370 * Returns bt_status_t 1371 * 1372 ******************************************************************************/ 1373 1374 static bt_status_t connect_int(RawAddress* bd_addr, uint16_t uuid) { 1375 btif_av_connect_req_t connect_req; 1376 connect_req.target_bda = bd_addr; 1377 connect_req.uuid = uuid; 1378 BTIF_TRACE_EVENT("%s", __func__); 1379 1380 btif_sm_dispatch(btif_av_cb.sm_handle, BTIF_AV_CONNECT_REQ_EVT, 1381 (char*)&connect_req); 1382 1383 return BT_STATUS_SUCCESS; 1384 } 1385 1386 static bt_status_t src_connect_sink(RawAddress* bd_addr) { 1387 BTIF_TRACE_EVENT("%s", __func__); 1388 CHECK_BTAV_INIT(); 1389 1390 return btif_queue_connect(UUID_SERVCLASS_AUDIO_SOURCE, bd_addr, connect_int); 1391 } 1392 1393 static bt_status_t sink_connect_src(RawAddress* bd_addr) { 1394 BTIF_TRACE_EVENT("%s", __func__); 1395 CHECK_BTAV_INIT(); 1396 1397 return btif_queue_connect(UUID_SERVCLASS_AUDIO_SINK, bd_addr, connect_int); 1398 } 1399 1400 /******************************************************************************* 1401 * 1402 * Function disconnect 1403 * 1404 * Description Tears down the AV signalling channel with the remote headset 1405 * 1406 * Returns bt_status_t 1407 * 1408 ******************************************************************************/ 1409 static bt_status_t disconnect(RawAddress* bd_addr) { 1410 BTIF_TRACE_EVENT("%s", __func__); 1411 CHECK_BTAV_INIT(); 1412 1413 /* Switch to BTIF context */ 1414 return btif_transfer_context(btif_av_handle_event, BTIF_AV_DISCONNECT_REQ_EVT, 1415 (char*)bd_addr, sizeof(RawAddress), NULL); 1416 } 1417 1418 static bt_status_t codec_config_src( 1419 std::vector<btav_a2dp_codec_config_t> codec_preferences) { 1420 BTIF_TRACE_EVENT("%s", __func__); 1421 CHECK_BTAV_INIT(); 1422 1423 for (auto cp : codec_preferences) { 1424 BTIF_TRACE_DEBUG( 1425 "%s: codec_type=%d codec_priority=%d " 1426 "sample_rate=0x%x bits_per_sample=0x%x " 1427 "channel_mode=0x%x codec_specific_1=%d " 1428 "codec_specific_2=%d codec_specific_3=%d " 1429 "codec_specific_4=%d", 1430 __func__, cp.codec_type, cp.codec_priority, cp.sample_rate, 1431 cp.bits_per_sample, cp.channel_mode, cp.codec_specific_1, 1432 cp.codec_specific_2, cp.codec_specific_3, cp.codec_specific_4); 1433 btif_transfer_context(btif_av_handle_event, BTIF_AV_SOURCE_CONFIG_REQ_EVT, 1434 reinterpret_cast<char*>(&cp), sizeof(cp), NULL); 1435 } 1436 1437 return BT_STATUS_SUCCESS; 1438 } 1439 1440 /******************************************************************************* 1441 * 1442 * Function cleanup 1443 * 1444 * Description Shuts down the AV interface and does the cleanup 1445 * 1446 * Returns None 1447 * 1448 ******************************************************************************/ 1449 static void cleanup(int service_uuid) { 1450 BTIF_TRACE_EVENT("%s", __func__); 1451 1452 btif_transfer_context(btif_av_handle_event, BTIF_AV_CLEANUP_REQ_EVT, NULL, 0, 1453 NULL); 1454 1455 btif_disable_service(service_uuid); 1456 1457 alarm_free(av_open_on_rc_timer); 1458 av_open_on_rc_timer = NULL; 1459 1460 /* Also shut down the AV state machine */ 1461 btif_sm_shutdown(btif_av_cb.sm_handle); 1462 btif_av_cb.sm_handle = NULL; 1463 } 1464 1465 static void cleanup_src(void) { 1466 BTIF_TRACE_EVENT("%s", __func__); 1467 1468 btif_queue_cleanup(UUID_SERVCLASS_AUDIO_SOURCE); 1469 if (bt_av_src_callbacks) { 1470 bt_av_src_callbacks = NULL; 1471 if (bt_av_sink_callbacks == NULL) cleanup(BTA_A2DP_SOURCE_SERVICE_ID); 1472 } 1473 } 1474 1475 static void cleanup_sink(void) { 1476 BTIF_TRACE_EVENT("%s", __func__); 1477 1478 btif_queue_cleanup(UUID_SERVCLASS_AUDIO_SINK); 1479 if (bt_av_sink_callbacks) { 1480 bt_av_sink_callbacks = NULL; 1481 if (bt_av_src_callbacks == NULL) cleanup(BTA_A2DP_SINK_SERVICE_ID); 1482 } 1483 } 1484 1485 static const btav_source_interface_t bt_av_src_interface = { 1486 sizeof(btav_source_interface_t), 1487 init_src, 1488 src_connect_sink, 1489 disconnect, 1490 codec_config_src, 1491 cleanup_src, 1492 }; 1493 1494 static const btav_sink_interface_t bt_av_sink_interface = { 1495 sizeof(btav_sink_interface_t), 1496 init_sink, 1497 sink_connect_src, 1498 disconnect, 1499 cleanup_sink, 1500 update_audio_focus_state, 1501 update_audio_track_gain, 1502 }; 1503 1504 /******************************************************************************* 1505 * 1506 * Function btif_av_get_addr 1507 * 1508 * Description Fetches current AV BD address 1509 * 1510 * Returns BD address 1511 * 1512 ******************************************************************************/ 1513 1514 RawAddress btif_av_get_addr(void) { return btif_av_cb.peer_bda; } 1515 1516 /******************************************************************************* 1517 * Function btif_av_is_sink_enabled 1518 * 1519 * Description Checks if A2DP Sink is enabled or not 1520 * 1521 * Returns true if A2DP Sink is enabled, false otherwise 1522 * 1523 ******************************************************************************/ 1524 1525 bool btif_av_is_sink_enabled(void) { 1526 return (bt_av_sink_callbacks != NULL) ? true : false; 1527 } 1528 1529 /******************************************************************************* 1530 * 1531 * Function btif_av_stream_ready 1532 * 1533 * Description Checks whether AV is ready for starting a stream 1534 * 1535 * Returns None 1536 * 1537 ******************************************************************************/ 1538 1539 bool btif_av_stream_ready(void) { 1540 btif_sm_state_t state = btif_sm_get_state(btif_av_cb.sm_handle); 1541 1542 BTIF_TRACE_DEBUG("%s: sm_handle=%d, state=%d, flags=0x%x", __func__, 1543 btif_av_cb.sm_handle, state, btif_av_cb.flags); 1544 1545 /* also make sure main adapter is enabled */ 1546 if (btif_is_enabled() == 0) { 1547 BTIF_TRACE_EVENT("%s: main adapter not enabled", __func__); 1548 return false; 1549 } 1550 1551 /* check if we are remotely suspended or stop is pending */ 1552 if (btif_av_cb.flags & 1553 (BTIF_AV_FLAG_REMOTE_SUSPEND | BTIF_AV_FLAG_PENDING_STOP)) 1554 return false; 1555 1556 return (state == BTIF_AV_STATE_OPENED); 1557 } 1558 1559 /******************************************************************************* 1560 * 1561 * Function btif_av_stream_started_ready 1562 * 1563 * Description Checks whether AV ready for media start in streaming state 1564 * 1565 * Returns None 1566 * 1567 ******************************************************************************/ 1568 1569 bool btif_av_stream_started_ready(void) { 1570 btif_sm_state_t state = btif_sm_get_state(btif_av_cb.sm_handle); 1571 bool ready = false; 1572 1573 /* disallow media task to start if we have pending actions */ 1574 if (btif_av_cb.flags & 1575 (BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING | BTIF_AV_FLAG_REMOTE_SUSPEND | 1576 BTIF_AV_FLAG_PENDING_STOP)) { 1577 ready = false; 1578 } else { 1579 ready = (state == BTIF_AV_STATE_STARTED); 1580 } 1581 1582 BTIF_TRACE_WARNING("%s: sm_handle=%d state=%d flags=0x%x ready=%d", __func__, 1583 btif_av_cb.sm_handle, state, btif_av_cb.flags, ready); 1584 1585 return ready; 1586 } 1587 1588 /******************************************************************************* 1589 * 1590 * Function btif_dispatch_sm_event 1591 * 1592 * Description Send event to AV statemachine 1593 * 1594 * Returns None 1595 * 1596 ******************************************************************************/ 1597 1598 /* used to pass events to AV statemachine from other tasks */ 1599 void btif_dispatch_sm_event(btif_av_sm_event_t event, void* p_data, int len) { 1600 /* Switch to BTIF context */ 1601 btif_transfer_context(btif_av_handle_event, event, (char*)p_data, len, NULL); 1602 } 1603 1604 /******************************************************************************* 1605 * 1606 * Function btif_av_execute_service 1607 * 1608 * Description Initializes/Shuts down the service 1609 * 1610 * Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise 1611 * 1612 ******************************************************************************/ 1613 bt_status_t btif_av_execute_service(bool b_enable) { 1614 if (b_enable) { 1615 /* TODO: Removed BTA_SEC_AUTHORIZE since the Java/App does not 1616 * handle this request in order to allow incoming connections to succeed. 1617 * We need to put this back once support for this is added */ 1618 1619 /* Added BTA_AV_FEAT_NO_SCO_SSPD - this ensures that the BTA does not 1620 * auto-suspend av streaming on AG events(SCO or Call). The suspend shall 1621 * be initiated by the app/audioflinger layers */ 1622 /* Support for browsing for SDP record should work only if we enable BROWSE 1623 * while registering. */ 1624 #if (AVRC_METADATA_INCLUDED == TRUE) 1625 BTA_AvEnable(BTA_SEC_AUTHENTICATE, 1626 BTA_AV_FEAT_RCTG | BTA_AV_FEAT_METADATA | BTA_AV_FEAT_VENDOR | 1627 BTA_AV_FEAT_NO_SCO_SSPD 1628 #if (AVRC_ADV_CTRL_INCLUDED == TRUE) 1629 | BTA_AV_FEAT_RCCT | BTA_AV_FEAT_ADV_CTRL | 1630 BTA_AV_FEAT_BROWSE 1631 #endif 1632 , 1633 bte_av_callback); 1634 #else 1635 BTA_AvEnable(BTA_SEC_AUTHENTICATE, 1636 (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_NO_SCO_SSPD), bte_av_callback); 1637 #endif 1638 BTA_AvRegister(BTA_AV_CHNL_AUDIO, BTIF_AV_SERVICE_NAME, 0, NULL, 1639 UUID_SERVCLASS_AUDIO_SOURCE); 1640 } else { 1641 BTA_AvDeregister(btif_av_cb.bta_handle); 1642 BTA_AvDisable(); 1643 } 1644 return BT_STATUS_SUCCESS; 1645 } 1646 1647 /******************************************************************************* 1648 * 1649 * Function btif_av_sink_execute_service 1650 * 1651 * Description Initializes/Shuts down the service 1652 * 1653 * Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise 1654 * 1655 ******************************************************************************/ 1656 bt_status_t btif_av_sink_execute_service(bool b_enable) { 1657 if (b_enable) { 1658 /* Added BTA_AV_FEAT_NO_SCO_SSPD - this ensures that the BTA does not 1659 * auto-suspend av streaming on AG events(SCO or Call). The suspend shall 1660 * be initiated by the app/audioflinger layers */ 1661 BTA_AvEnable(BTA_SEC_AUTHENTICATE, 1662 BTA_AV_FEAT_NO_SCO_SSPD | BTA_AV_FEAT_RCCT | 1663 BTA_AV_FEAT_METADATA | BTA_AV_FEAT_VENDOR | 1664 BTA_AV_FEAT_ADV_CTRL | BTA_AV_FEAT_RCTG | 1665 BTA_AV_FEAT_BROWSE, 1666 bte_av_callback); 1667 BTA_AvRegister(BTA_AV_CHNL_AUDIO, BTIF_AVK_SERVICE_NAME, 0, 1668 bte_av_sink_media_callback, UUID_SERVCLASS_AUDIO_SINK); 1669 } else { 1670 BTA_AvDeregister(btif_av_cb.bta_handle); 1671 BTA_AvDisable(); 1672 } 1673 return BT_STATUS_SUCCESS; 1674 } 1675 1676 /******************************************************************************* 1677 * 1678 * Function btif_av_get_src_interface 1679 * 1680 * Description Get the AV callback interface for A2DP source profile 1681 * 1682 * Returns btav_source_interface_t 1683 * 1684 ******************************************************************************/ 1685 const btav_source_interface_t* btif_av_get_src_interface(void) { 1686 BTIF_TRACE_EVENT("%s", __func__); 1687 return &bt_av_src_interface; 1688 } 1689 1690 /******************************************************************************* 1691 * 1692 * Function btif_av_get_sink_interface 1693 * 1694 * Description Get the AV callback interface for A2DP sink profile 1695 * 1696 * Returns btav_sink_interface_t 1697 * 1698 ******************************************************************************/ 1699 const btav_sink_interface_t* btif_av_get_sink_interface(void) { 1700 BTIF_TRACE_EVENT("%s", __func__); 1701 return &bt_av_sink_interface; 1702 } 1703 1704 /******************************************************************************* 1705 * 1706 * Function btif_av_is_connected 1707 * 1708 * Description Checks if av has a connected sink 1709 * 1710 * Returns bool 1711 * 1712 ******************************************************************************/ 1713 bool btif_av_is_connected(void) { 1714 btif_sm_state_t state = btif_sm_get_state(btif_av_cb.sm_handle); 1715 return ((state == BTIF_AV_STATE_OPENED) || (state == BTIF_AV_STATE_STARTED)); 1716 } 1717 1718 uint8_t btif_av_get_peer_sep(void) { return btif_av_cb.peer_sep; } 1719 1720 /******************************************************************************* 1721 * 1722 * Function btif_av_is_peer_edr 1723 * 1724 * Description Check if the connected a2dp device supports 1725 * EDR or not. Only when connected this function 1726 * will accurately provide a true capability of 1727 * remote peer. If not connected it will always be false. 1728 * 1729 * Returns true if remote device is capable of EDR 1730 * 1731 ******************************************************************************/ 1732 bool btif_av_is_peer_edr(void) { 1733 ASSERTC(btif_av_is_connected(), "No active a2dp connection", 0); 1734 1735 if (btif_av_cb.edr) 1736 return true; 1737 else 1738 return false; 1739 } 1740 1741 /****************************************************************************** 1742 * 1743 * Function btif_av_clear_remote_suspend_flag 1744 * 1745 * Description Clears btif_av_cd.flags if BTIF_AV_FLAG_REMOTE_SUSPEND is set 1746 * 1747 * Returns void 1748 *****************************************************************************/ 1749 void btif_av_clear_remote_suspend_flag(void) { 1750 BTIF_TRACE_DEBUG("%s: flags=0x%x", __func__, btif_av_cb.flags); 1751 btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND; 1752 } 1753 1754 /******************************************************************************* 1755 * 1756 * Function btif_av_peer_supports_3mbps 1757 * 1758 * Description Check if the connected A2DP device supports 1759 * 3 Mbps EDR. This function only works if connected. 1760 * If not connected it will always be false. 1761 * 1762 * Returns true if remote device is EDR and supports 3 Mbps 1763 * 1764 ******************************************************************************/ 1765 bool btif_av_peer_supports_3mbps(void) { 1766 bool is3mbps = ((btif_av_cb.edr & BTA_AV_EDR_3MBPS) != 0); 1767 BTIF_TRACE_DEBUG("%s: connected %d, edr_3mbps %d", __func__, 1768 btif_av_is_connected(), is3mbps); 1769 return (btif_av_is_connected() && is3mbps); 1770 } 1771 1772 /******************************************************************************* 1773 * 1774 * Function btif_av_move_idle 1775 * 1776 * Description Opening state is intermediate state. It cannot handle 1777 * incoming/outgoing connect/disconnect requests.When ACL 1778 * is disconnected and we are in opening state then move back 1779 * to idle state which is proper to handle connections. 1780 * 1781 * Returns Void 1782 * 1783 ******************************************************************************/ 1784 void btif_av_move_idle(RawAddress bd_addr) { 1785 /* inform the application that ACL is disconnected and move to idle state */ 1786 btif_sm_state_t state = btif_sm_get_state(btif_av_cb.sm_handle); 1787 BTIF_TRACE_WARNING("%s: ACL Disconnected state %d bd_addr=%s peer_bda=%s", 1788 __func__, state, bd_addr.ToString().c_str(), 1789 btif_av_cb.peer_bda.ToString().c_str()); 1790 1791 if (state == BTIF_AV_STATE_OPENING && (bd_addr == btif_av_cb.peer_bda)) { 1792 BTIF_TRACE_DEBUG( 1793 "%s: Moving State from Opening to Idle due to ACL disconnect", 1794 __func__); 1795 btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, 1796 &(btif_av_cb.peer_bda)); 1797 btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE); 1798 } 1799 } 1800
