1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "radio_hw_stub" 18#define LOG_NDEBUG 0 19 20#include <string.h> 21#include <stdlib.h> 22#include <errno.h> 23#include <pthread.h> 24#include <sys/prctl.h> 25#include <sys/time.h> 26#include <sys/types.h> 27#include <sys/stat.h> 28#include <fcntl.h> 29#include <unistd.h> 30#include <cutils/log.h> 31#include <cutils/list.h> 32#include <system/radio.h> 33#include <system/radio_metadata.h> 34#include <hardware/hardware.h> 35#include <hardware/radio.h> 36 37static const radio_hal_properties_t hw_properties = { 38 .class_id = RADIO_CLASS_AM_FM, 39 .implementor = "The Android Open Source Project", 40 .product = "Radio stub HAL", 41 .version = "0.1", 42 .serial = "0123456789", 43 .num_tuners = 1, 44 .num_audio_sources = 1, 45 .supports_capture = false, 46 .num_bands = 2, 47 .bands = { 48 { 49 .type = RADIO_BAND_FM, 50 .antenna_connected = false, 51 .lower_limit = 87900, 52 .upper_limit = 107900, 53 .num_spacings = 1, 54 .spacings = { 200 }, 55 .fm = { 56 .deemphasis = RADIO_DEEMPHASIS_75, 57 .stereo = true, 58 .rds = RADIO_RDS_US, 59 .ta = false, 60 .af = false, 61 .ea = true, 62 } 63 }, 64 { 65 .type = RADIO_BAND_AM, 66 .antenna_connected = true, 67 .lower_limit = 540, 68 .upper_limit = 1610, 69 .num_spacings = 1, 70 .spacings = { 10 }, 71 .am = { 72 .stereo = true, 73 } 74 } 75 } 76}; 77 78static const radio_metadata_clock_t hw_clock = { 79 .utc_seconds_since_epoch = 1234567890, 80 .timezone_offset_in_minutes = (-8 * 60), 81}; 82 83struct stub_radio_tuner { 84 struct radio_tuner interface; 85 struct stub_radio_device *dev; 86 radio_callback_t callback; 87 void *cookie; 88 radio_hal_band_config_t config; 89 radio_program_info_t program; 90 bool audio; 91 pthread_t callback_thread; 92 pthread_mutex_t lock; 93 pthread_cond_t cond; 94 struct listnode command_list; 95}; 96 97struct stub_radio_device { 98 struct radio_hw_device device; 99 struct stub_radio_tuner *tuner; 100 pthread_mutex_t lock; 101}; 102 103 104typedef enum { 105 CMD_EXIT, 106 CMD_CONFIG, 107 CMD_STEP, 108 CMD_SCAN, 109 CMD_TUNE, 110 CMD_CANCEL, 111 CMD_METADATA, 112 CMD_ANNOUNCEMENTS, 113} thread_cmd_type_t; 114 115struct thread_command { 116 struct listnode node; 117 thread_cmd_type_t type; 118 struct timespec ts; 119 union { 120 unsigned int param; 121 radio_hal_band_config_t config; 122 }; 123}; 124 125/* must be called with out->lock locked */ 126static int send_command_l(struct stub_radio_tuner *tuner, 127 thread_cmd_type_t type, 128 unsigned int delay_ms, 129 void *param) 130{ 131 struct thread_command *cmd = (struct thread_command *)calloc(1, sizeof(struct thread_command)); 132 struct timespec ts; 133 134 if (cmd == NULL) 135 return -ENOMEM; 136 137 ALOGV("%s %d delay_ms %d", __func__, type, delay_ms); 138 139 cmd->type = type; 140 if (param != NULL) { 141 if (cmd->type == CMD_CONFIG) { 142 cmd->config = *(radio_hal_band_config_t *)param; 143 ALOGV("%s CMD_CONFIG type %d", __func__, cmd->config.type); 144 } else 145 cmd->param = *(unsigned int *)param; 146 } 147 148 clock_gettime(CLOCK_REALTIME, &ts); 149 150 ts.tv_sec += delay_ms/1000; 151 ts.tv_nsec += (delay_ms%1000) * 1000000; 152 if (ts.tv_nsec >= 1000000000) { 153 ts.tv_nsec -= 1000000000; 154 ts.tv_sec += 1; 155 } 156 cmd->ts = ts; 157 list_add_tail(&tuner->command_list, &cmd->node); 158 pthread_cond_signal(&tuner->cond); 159 return 0; 160} 161 162#define BITMAP_FILE_PATH "/data/misc/audioserver/android.png" 163 164static int add_bitmap_metadata(radio_metadata_t **metadata, radio_metadata_key_t key, 165 const char *source) 166{ 167 int fd; 168 ssize_t ret = 0; 169 struct stat info; 170 void *data = NULL; 171 size_t size; 172 173 fd = open(source, O_RDONLY); 174 if (fd < 0) 175 return -EPIPE; 176 177 fstat(fd, &info); 178 size = info.st_size; 179 data = malloc(size); 180 if (data == NULL) { 181 ret = -ENOMEM; 182 goto exit; 183 } 184 ret = read(fd, data, size); 185 if (ret < 0) 186 goto exit; 187 ret = radio_metadata_add_raw(metadata, key, (const unsigned char *)data, size); 188 189exit: 190 close(fd); 191 free(data); 192 ALOGE_IF(ret != 0, "%s error %d", __func__, ret); 193 return (int)ret; 194} 195 196static int prepare_metadata(struct stub_radio_tuner *tuner, 197 radio_metadata_t **metadata, bool program) 198{ 199 int ret = 0; 200 char text[RADIO_STRING_LEN_MAX]; 201 struct timespec ts; 202 203 if (metadata == NULL) 204 return -EINVAL; 205 206 if (*metadata != NULL) 207 radio_metadata_deallocate(*metadata); 208 209 *metadata = NULL; 210 211 ret = radio_metadata_allocate(metadata, tuner->program.channel, 0); 212 if (ret != 0) 213 return ret; 214 215 if (program) { 216 ret = radio_metadata_add_int(metadata, RADIO_METADATA_KEY_RBDS_PTY, 5); 217 if (ret != 0) 218 goto exit; 219 ret = radio_metadata_add_text(metadata, RADIO_METADATA_KEY_RDS_PS, "RockBand"); 220 if (ret != 0) 221 goto exit; 222 ret = add_bitmap_metadata(metadata, RADIO_METADATA_KEY_ICON, BITMAP_FILE_PATH); 223 if (ret != 0) 224 goto exit; 225 ret = radio_metadata_add_clock(metadata, RADIO_METADATA_KEY_CLOCK, &hw_clock); 226 if (ret != 0) 227 goto exit; 228 } else { 229 ret = add_bitmap_metadata(metadata, RADIO_METADATA_KEY_ART, BITMAP_FILE_PATH); 230 if (ret != 0) 231 goto exit; 232 } 233 234 clock_gettime(CLOCK_REALTIME, &ts); 235 snprintf(text, RADIO_STRING_LEN_MAX, "Artist %ld", ts.tv_sec % 10); 236 ret = radio_metadata_add_text(metadata, RADIO_METADATA_KEY_ARTIST, text); 237 if (ret != 0) 238 goto exit; 239 240 snprintf(text, RADIO_STRING_LEN_MAX, "Song %ld", ts.tv_nsec % 10); 241 ret = radio_metadata_add_text(metadata, RADIO_METADATA_KEY_TITLE, text); 242 if (ret != 0) 243 goto exit; 244 245 return 0; 246 247exit: 248 radio_metadata_deallocate(*metadata); 249 *metadata = NULL; 250 return ret; 251} 252 253static void *callback_thread_loop(void *context) 254{ 255 struct stub_radio_tuner *tuner = (struct stub_radio_tuner *)context; 256 struct timespec ts = {0, 0}; 257 258 ALOGI("%s", __func__); 259 260 prctl(PR_SET_NAME, (unsigned long)"sound trigger callback", 0, 0, 0); 261 262 pthread_mutex_lock(&tuner->lock); 263 264 // Fields which are used to toggle the state of traffic announcements and 265 // ea announcements at random. They are access protected by tuner->lock. 266 bool ea_state = false; 267 268 while (true) { 269 struct thread_command *cmd = NULL; 270 struct listnode *item; 271 struct listnode *tmp; 272 struct timespec cur_ts; 273 bool got_cancel = false; 274 bool send_meta_data = false; 275 276 if (list_empty(&tuner->command_list) || ts.tv_sec != 0) { 277 ALOGV("%s SLEEPING", __func__); 278 if (ts.tv_sec != 0) { 279 ALOGV("%s SLEEPING with timeout", __func__); 280 pthread_cond_timedwait(&tuner->cond, &tuner->lock, &ts); 281 } else { 282 ALOGV("%s SLEEPING forever", __func__); 283 pthread_cond_wait(&tuner->cond, &tuner->lock); 284 } 285 ts.tv_sec = 0; 286 ALOGV("%s RUNNING", __func__); 287 } 288 289 clock_gettime(CLOCK_REALTIME, &cur_ts); 290 291 list_for_each_safe(item, tmp, &tuner->command_list) { 292 cmd = node_to_item(item, struct thread_command, node); 293 294 if (got_cancel && (cmd->type == CMD_STEP || cmd->type == CMD_SCAN || 295 cmd->type == CMD_TUNE || cmd->type == CMD_METADATA || 296 cmd->type == CMD_ANNOUNCEMENTS)) { 297 list_remove(item); 298 free(cmd); 299 continue; 300 } 301 302 if ((cmd->ts.tv_sec < cur_ts.tv_sec) || 303 ((cmd->ts.tv_sec == cur_ts.tv_sec) && (cmd->ts.tv_nsec < cur_ts.tv_nsec))) { 304 radio_hal_event_t event; 305 radio_metadata_t *metadata = NULL; 306 307 event.type = RADIO_EVENT_HW_FAILURE; 308 list_remove(item); 309 310 ALOGV("%s processing command %d time %ld.%ld", __func__, cmd->type, cmd->ts.tv_sec, 311 cmd->ts.tv_nsec); 312 313 switch (cmd->type) { 314 default: 315 case CMD_EXIT: 316 free(cmd); 317 goto exit; 318 319 case CMD_CONFIG: { 320 tuner->config = cmd->config; 321 event.type = RADIO_EVENT_CONFIG; 322 event.config = tuner->config; 323 ALOGV("%s CMD_CONFIG type %d low %d up %d", 324 __func__, tuner->config.type, 325 tuner->config.lower_limit, tuner->config.upper_limit); 326 if (tuner->config.type == RADIO_BAND_FM) { 327 ALOGV(" - stereo %d\n - rds %d\n - ta %d\n - af %d\n" 328 " - ea %d\n", 329 tuner->config.fm.stereo, tuner->config.fm.rds, 330 tuner->config.fm.ta, tuner->config.fm.af, 331 tuner->config.fm.ea); 332 } else { 333 ALOGV(" - stereo %d", tuner->config.am.stereo); 334 } 335 } break; 336 337 case CMD_STEP: { 338 int frequency; 339 frequency = tuner->program.channel; 340 if (cmd->param == RADIO_DIRECTION_UP) { 341 frequency += tuner->config.spacings[0]; 342 } else { 343 frequency -= tuner->config.spacings[0]; 344 } 345 if (frequency > (int)tuner->config.upper_limit) { 346 frequency = tuner->config.lower_limit; 347 } 348 if (frequency < (int)tuner->config.lower_limit) { 349 frequency = tuner->config.upper_limit; 350 } 351 tuner->program.channel = frequency; 352 tuner->program.tuned = (frequency / (tuner->config.spacings[0] * 5)) % 2; 353 tuner->program.signal_strength = 20; 354 if (tuner->config.type == RADIO_BAND_FM) 355 tuner->program.stereo = false; 356 else 357 tuner->program.stereo = false; 358 359 event.type = RADIO_EVENT_TUNED; 360 event.info = tuner->program; 361 } break; 362 363 case CMD_SCAN: { 364 int frequency; 365 frequency = tuner->program.channel; 366 if (cmd->param == RADIO_DIRECTION_UP) { 367 frequency += tuner->config.spacings[0] * 25; 368 } else { 369 frequency -= tuner->config.spacings[0] * 25; 370 } 371 if (frequency > (int)tuner->config.upper_limit) { 372 frequency = tuner->config.lower_limit; 373 } 374 if (frequency < (int)tuner->config.lower_limit) { 375 frequency = tuner->config.upper_limit; 376 } 377 tuner->program.channel = (unsigned int)frequency; 378 tuner->program.tuned = true; 379 if (tuner->config.type == RADIO_BAND_FM) 380 tuner->program.stereo = tuner->config.fm.stereo; 381 else 382 tuner->program.stereo = tuner->config.am.stereo; 383 tuner->program.signal_strength = 50; 384 385 event.type = RADIO_EVENT_TUNED; 386 event.info = tuner->program; 387 send_meta_data = true; 388 } break; 389 390 case CMD_TUNE: { 391 tuner->program.channel = cmd->param; 392 tuner->program.tuned = (tuner->program.channel / 393 (tuner->config.spacings[0] * 5)) % 2; 394 395 if (tuner->program.tuned) { 396 prepare_metadata(tuner, &tuner->program.metadata, true); 397 send_command_l(tuner, CMD_ANNOUNCEMENTS, 1000, NULL); 398 } else { 399 if (tuner->program.metadata != NULL) 400 radio_metadata_deallocate(tuner->program.metadata); 401 tuner->program.metadata = NULL; 402 } 403 tuner->program.signal_strength = 100; 404 if (tuner->config.type == RADIO_BAND_FM) 405 tuner->program.stereo = 406 tuner->program.tuned ? tuner->config.fm.stereo : false; 407 else 408 tuner->program.stereo = 409 tuner->program.tuned ? tuner->config.am.stereo : false; 410 event.type = RADIO_EVENT_TUNED; 411 event.info = tuner->program; 412 send_meta_data = true; 413 } break; 414 415 case CMD_METADATA: { 416 int ret = prepare_metadata(tuner, &metadata, false); 417 if (ret == 0) { 418 event.type = RADIO_EVENT_METADATA; 419 event.metadata = metadata; 420 } 421 send_meta_data = true; 422 } break; 423 424 case CMD_CANCEL: { 425 got_cancel = true; 426 } break; 427 428 // Fire emergency announcements if they are enabled in the config. Stub 429 // implementation simply fires an announcement for 5 second 430 // duration with a gap of 5 seconds. 431 case CMD_ANNOUNCEMENTS: { 432 ALOGV("In annoucements. %d %d %d\n", 433 ea_state, tuner->config.type, tuner->config.fm.ea); 434 if (tuner->config.type == RADIO_BAND_FM || 435 tuner->config.type == RADIO_BAND_FM_HD) { 436 if (ea_state) { 437 ea_state = false; 438 event.type = RADIO_EVENT_EA; 439 } else if (tuner->config.fm.ea) { 440 ea_state = true; 441 event.type = RADIO_EVENT_EA; 442 } 443 event.on = ea_state; 444 445 if (tuner->config.fm.ea) { 446 send_command_l(tuner, CMD_ANNOUNCEMENTS, 5000, NULL); 447 } 448 } 449 } break; 450 } 451 if (event.type != RADIO_EVENT_HW_FAILURE && tuner->callback != NULL) { 452 pthread_mutex_unlock(&tuner->lock); 453 tuner->callback(&event, tuner->cookie); 454 pthread_mutex_lock(&tuner->lock); 455 if (event.type == RADIO_EVENT_METADATA && metadata != NULL) { 456 radio_metadata_deallocate(metadata); 457 metadata = NULL; 458 } 459 } 460 ALOGV("%s processed command %d", __func__, cmd->type); 461 free(cmd); 462 } else { 463 if ((ts.tv_sec == 0) || 464 (cmd->ts.tv_sec < ts.tv_sec) || 465 ((cmd->ts.tv_sec == ts.tv_sec) && (cmd->ts.tv_nsec < ts.tv_nsec))) { 466 ts.tv_sec = cmd->ts.tv_sec; 467 ts.tv_nsec = cmd->ts.tv_nsec; 468 } 469 } 470 } 471 472 if (send_meta_data) { 473 list_for_each_safe(item, tmp, &tuner->command_list) { 474 cmd = node_to_item(item, struct thread_command, node); 475 if (cmd->type == CMD_METADATA) { 476 list_remove(item); 477 free(cmd); 478 } 479 } 480 send_command_l(tuner, CMD_METADATA, 1000, NULL); 481 } 482 } 483 484exit: 485 pthread_mutex_unlock(&tuner->lock); 486 487 ALOGV("%s Exiting", __func__); 488 489 return NULL; 490} 491 492 493static int tuner_set_configuration(const struct radio_tuner *tuner, 494 const radio_hal_band_config_t *config) 495{ 496 struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner; 497 int status = 0; 498 499 ALOGI("%s stub_tuner %p", __func__, stub_tuner); 500 pthread_mutex_lock(&stub_tuner->lock); 501 if (config == NULL) { 502 status = -EINVAL; 503 goto exit; 504 } 505 send_command_l(stub_tuner, CMD_CANCEL, 0, NULL); 506 send_command_l(stub_tuner, CMD_CONFIG, 500, (void *)config); 507 508exit: 509 pthread_mutex_unlock(&stub_tuner->lock); 510 return status; 511} 512 513static int tuner_get_configuration(const struct radio_tuner *tuner, 514 radio_hal_band_config_t *config) 515{ 516 struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner; 517 int status = 0; 518 struct listnode *item; 519 radio_hal_band_config_t *src_config; 520 521 ALOGI("%s stub_tuner %p", __func__, stub_tuner); 522 pthread_mutex_lock(&stub_tuner->lock); 523 src_config = &stub_tuner->config; 524 525 if (config == NULL) { 526 status = -EINVAL; 527 goto exit; 528 } 529 list_for_each(item, &stub_tuner->command_list) { 530 struct thread_command *cmd = node_to_item(item, struct thread_command, node); 531 if (cmd->type == CMD_CONFIG) { 532 src_config = &cmd->config; 533 } 534 } 535 *config = *src_config; 536 537exit: 538 pthread_mutex_unlock(&stub_tuner->lock); 539 return status; 540} 541 542static int tuner_step(const struct radio_tuner *tuner, 543 radio_direction_t direction, bool skip_sub_channel) 544{ 545 struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner; 546 547 ALOGI("%s stub_tuner %p direction %d, skip_sub_channel %d", 548 __func__, stub_tuner, direction, skip_sub_channel); 549 550 pthread_mutex_lock(&stub_tuner->lock); 551 send_command_l(stub_tuner, CMD_STEP, 20, &direction); 552 pthread_mutex_unlock(&stub_tuner->lock); 553 return 0; 554} 555 556static int tuner_scan(const struct radio_tuner *tuner, 557 radio_direction_t direction, bool skip_sub_channel) 558{ 559 struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner; 560 561 ALOGI("%s stub_tuner %p direction %d, skip_sub_channel %d", 562 __func__, stub_tuner, direction, skip_sub_channel); 563 564 pthread_mutex_lock(&stub_tuner->lock); 565 send_command_l(stub_tuner, CMD_SCAN, 200, &direction); 566 pthread_mutex_unlock(&stub_tuner->lock); 567 return 0; 568} 569 570static int tuner_tune(const struct radio_tuner *tuner, 571 unsigned int channel, unsigned int sub_channel) 572{ 573 struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner; 574 575 ALOGI("%s stub_tuner %p channel %d, sub_channel %d", 576 __func__, stub_tuner, channel, sub_channel); 577 578 pthread_mutex_lock(&stub_tuner->lock); 579 if (channel < stub_tuner->config.lower_limit || channel > stub_tuner->config.upper_limit) { 580 pthread_mutex_unlock(&stub_tuner->lock); 581 ALOGI("%s channel out of range", __func__); 582 return -EINVAL; 583 } 584 send_command_l(stub_tuner, CMD_TUNE, 100, &channel); 585 pthread_mutex_unlock(&stub_tuner->lock); 586 return 0; 587} 588 589static int tuner_cancel(const struct radio_tuner *tuner) 590{ 591 struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner; 592 593 ALOGI("%s stub_tuner %p", __func__, stub_tuner); 594 595 pthread_mutex_lock(&stub_tuner->lock); 596 send_command_l(stub_tuner, CMD_CANCEL, 0, NULL); 597 pthread_mutex_unlock(&stub_tuner->lock); 598 return 0; 599} 600 601static int tuner_get_program_information(const struct radio_tuner *tuner, 602 radio_program_info_t *info) 603{ 604 struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner; 605 int status = 0; 606 radio_metadata_t *metadata; 607 608 ALOGI("%s stub_tuner %p", __func__, stub_tuner); 609 pthread_mutex_lock(&stub_tuner->lock); 610 if (info == NULL) { 611 status = -EINVAL; 612 goto exit; 613 } 614 metadata = info->metadata; 615 *info = stub_tuner->program; 616 info->metadata = metadata; 617 if (metadata != NULL && stub_tuner->program.metadata != NULL) 618 radio_metadata_add_metadata(&info->metadata, stub_tuner->program.metadata); 619 620exit: 621 pthread_mutex_unlock(&stub_tuner->lock); 622 return status; 623} 624 625static int rdev_get_properties(const struct radio_hw_device *dev, 626 radio_hal_properties_t *properties) 627{ 628 struct stub_radio_device *rdev = (struct stub_radio_device *)dev; 629 630 ALOGI("%s", __func__); 631 if (properties == NULL) 632 return -EINVAL; 633 memcpy(properties, &hw_properties, sizeof(radio_hal_properties_t)); 634 return 0; 635} 636 637static int rdev_open_tuner(const struct radio_hw_device *dev, 638 const radio_hal_band_config_t *config, 639 bool audio, 640 radio_callback_t callback, 641 void *cookie, 642 const struct radio_tuner **tuner) 643{ 644 struct stub_radio_device *rdev = (struct stub_radio_device *)dev; 645 int status = 0; 646 647 ALOGI("%s rdev %p", __func__, rdev); 648 pthread_mutex_lock(&rdev->lock); 649 650 if (rdev->tuner != NULL) { 651 status = -ENOSYS; 652 goto exit; 653 } 654 655 if (config == NULL || callback == NULL || tuner == NULL) { 656 status = -EINVAL; 657 goto exit; 658 } 659 660 rdev->tuner = (struct stub_radio_tuner *)calloc(1, sizeof(struct stub_radio_tuner)); 661 if (rdev->tuner == NULL) { 662 status = -ENOMEM; 663 goto exit; 664 } 665 666 rdev->tuner->interface.set_configuration = tuner_set_configuration; 667 rdev->tuner->interface.get_configuration = tuner_get_configuration; 668 rdev->tuner->interface.scan = tuner_scan; 669 rdev->tuner->interface.step = tuner_step; 670 rdev->tuner->interface.tune = tuner_tune; 671 rdev->tuner->interface.cancel = tuner_cancel; 672 rdev->tuner->interface.get_program_information = tuner_get_program_information; 673 674 rdev->tuner->audio = audio; 675 rdev->tuner->callback = callback; 676 rdev->tuner->cookie = cookie; 677 678 rdev->tuner->dev = rdev; 679 680 pthread_mutex_init(&rdev->tuner->lock, (const pthread_mutexattr_t *) NULL); 681 pthread_cond_init(&rdev->tuner->cond, (const pthread_condattr_t *) NULL); 682 pthread_create(&rdev->tuner->callback_thread, (const pthread_attr_t *) NULL, 683 callback_thread_loop, rdev->tuner); 684 list_init(&rdev->tuner->command_list); 685 686 pthread_mutex_lock(&rdev->tuner->lock); 687 send_command_l(rdev->tuner, CMD_CONFIG, 500, (void *)config); 688 pthread_mutex_unlock(&rdev->tuner->lock); 689 690 *tuner = &rdev->tuner->interface; 691 692exit: 693 pthread_mutex_unlock(&rdev->lock); 694 ALOGI("%s DONE", __func__); 695 return status; 696} 697 698static int rdev_close_tuner(const struct radio_hw_device *dev, 699 const struct radio_tuner *tuner) 700{ 701 struct stub_radio_device *rdev = (struct stub_radio_device *)dev; 702 struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner; 703 int status = 0; 704 705 ALOGI("%s tuner %p", __func__, tuner); 706 pthread_mutex_lock(&rdev->lock); 707 708 if (tuner == NULL) { 709 status = -EINVAL; 710 goto exit; 711 } 712 713 pthread_mutex_lock(&stub_tuner->lock); 714 stub_tuner->callback = NULL; 715 send_command_l(stub_tuner, CMD_EXIT, 0, NULL); 716 pthread_mutex_unlock(&stub_tuner->lock); 717 pthread_join(stub_tuner->callback_thread, (void **) NULL); 718 719 if (stub_tuner->program.metadata != NULL) 720 radio_metadata_deallocate(stub_tuner->program.metadata); 721 722 free(stub_tuner); 723 rdev->tuner = NULL; 724 725exit: 726 pthread_mutex_unlock(&rdev->lock); 727 return status; 728} 729 730static int rdev_close(hw_device_t *device) 731{ 732 struct stub_radio_device *rdev = (struct stub_radio_device *)device; 733 if (rdev != NULL) { 734 free(rdev->tuner); 735 } 736 free(rdev); 737 return 0; 738} 739 740static int rdev_open(const hw_module_t* module, const char* name, 741 hw_device_t** device) 742{ 743 struct stub_radio_device *rdev; 744 int ret; 745 746 if (strcmp(name, RADIO_HARDWARE_DEVICE) != 0) 747 return -EINVAL; 748 749 rdev = calloc(1, sizeof(struct stub_radio_device)); 750 if (!rdev) 751 return -ENOMEM; 752 753 rdev->device.common.tag = HARDWARE_DEVICE_TAG; 754 rdev->device.common.version = RADIO_DEVICE_API_VERSION_1_0; 755 rdev->device.common.module = (struct hw_module_t *) module; 756 rdev->device.common.close = rdev_close; 757 rdev->device.get_properties = rdev_get_properties; 758 rdev->device.open_tuner = rdev_open_tuner; 759 rdev->device.close_tuner = rdev_close_tuner; 760 761 pthread_mutex_init(&rdev->lock, (const pthread_mutexattr_t *) NULL); 762 763 *device = &rdev->device.common; 764 765 return 0; 766} 767 768 769static struct hw_module_methods_t hal_module_methods = { 770 .open = rdev_open, 771}; 772 773struct radio_module HAL_MODULE_INFO_SYM = { 774 .common = { 775 .tag = HARDWARE_MODULE_TAG, 776 .module_api_version = RADIO_MODULE_API_VERSION_1_0, 777 .hal_api_version = HARDWARE_HAL_API_VERSION, 778 .id = RADIO_HARDWARE_MODULE_ID, 779 .name = "Stub radio HAL", 780 .author = "The Android Open Source Project", 781 .methods = &hal_module_methods, 782 }, 783}; 784
