1 /* 2 * Copyright (C) 2016 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define BTSTACK_FILE__ "a2dp_sink_demo.c" 39 40 /* 41 * a2dp_sink_demo.c 42 */ 43 44 // ***************************************************************************** 45 /* EXAMPLE_START(a2dp_sink_demo): Receive audio stream and control its playback. 46 * 47 * @text This A2DP Sink example demonstrates how to use the A2DP Sink service to 48 * receive an audio data stream from a remote A2DP Source device. In addition, 49 * the AVRCP Controller is used to get information on currently played media, 50 * such are title, artist and album, as well as to control the playback, 51 * i.e. to play, stop, repeat, etc. 52 * 53 * @test To test with a remote device, e.g. a mobile phone, 54 * pair from the remote device with the demo, then start playing music on the remote device. 55 * Alternatively, set the device_addr_string to the Bluetooth address of your 56 * remote device in the code, and call connect from the UI. 57 * 58 * @test To controll the playback, tap SPACE on the console to show the available 59 * AVRCP commands. 60 * 61 * For more info on BTstack audio, see our blog post 62 * [A2DP Sink and Source on STM32 F4 Discovery Board](http://bluekitchen-gmbh.com/a2dp-sink-and-source-on-stm32-f4-discovery-board/). 63 * 64 */ 65 // ***************************************************************************** 66 67 #include <inttypes.h> 68 #include <stdint.h> 69 #include <stdio.h> 70 #include <stdlib.h> 71 #include <string.h> 72 73 #include "btstack.h" 74 #include "btstack_resample.h" 75 76 //#define AVRCP_BROWSING_ENABLED 77 78 #ifdef HAVE_BTSTACK_STDIN 79 #include "btstack_stdin.h" 80 #endif 81 82 #include "btstack_ring_buffer.h" 83 84 #ifdef HAVE_POSIX_FILE_IO 85 #include "wav_util.h" 86 #define STORE_TO_SBC_FILE 87 #define STORE_TO_WAV_FILE 88 #endif 89 90 #define NUM_CHANNELS 2 91 #define BYTES_PER_FRAME (2*NUM_CHANNELS) 92 #define MAX_SBC_FRAME_SIZE 120 93 94 // SBC Decoder for WAV file or live playback 95 static btstack_sbc_decoder_state_t state; 96 static btstack_sbc_mode_t mode = SBC_MODE_STANDARD; 97 98 // ring buffer for SBC Frames 99 // below 30: add samples, 30-40: fine, above 40: drop samples 100 #define OPTIMAL_FRAMES_MIN 30 101 #define OPTIMAL_FRAMES_MAX 40 102 #define ADDITIONAL_FRAMES 20 103 static uint8_t sbc_frame_storage[(OPTIMAL_FRAMES_MAX + ADDITIONAL_FRAMES) * MAX_SBC_FRAME_SIZE]; 104 static btstack_ring_buffer_t sbc_frame_ring_buffer; 105 static unsigned int sbc_frame_size; 106 107 // rest buffer for not fully used sbc frames, with additional frames for resampling 108 static uint8_t decoded_audio_storage[(128+16) * BYTES_PER_FRAME]; 109 static btstack_ring_buffer_t decoded_audio_ring_buffer; 110 111 // 112 static int audio_stream_started; 113 114 // temp storage of lower-layer request 115 static int16_t * request_buffer; 116 static int request_frames; 117 118 #define STORE_FROM_PLAYBACK 119 120 // WAV File 121 #ifdef STORE_TO_WAV_FILE 122 static uint32_t audio_frame_count = 0; 123 static char * wav_filename = "av2dp_sink_demo.wav"; 124 #endif 125 126 #ifdef STORE_TO_SBC_FILE 127 static FILE * sbc_file; 128 static char * sbc_filename = "av2dp_sink_demo.sbc"; 129 #endif 130 131 static int volume_percentage = 0; 132 133 typedef struct { 134 // bitmaps 135 uint8_t sampling_frequency_bitmap; 136 uint8_t channel_mode_bitmap; 137 uint8_t block_length_bitmap; 138 uint8_t subbands_bitmap; 139 uint8_t allocation_method_bitmap; 140 uint8_t min_bitpool_value; 141 uint8_t max_bitpool_value; 142 } adtvp_media_codec_information_sbc_t; 143 144 typedef struct { 145 int reconfigure; 146 int num_channels; 147 int sampling_frequency; 148 int channel_mode; 149 int block_length; 150 int subbands; 151 int allocation_method; 152 int min_bitpool_value; 153 int max_bitpool_value; 154 int frames_per_buffer; 155 } avdtp_media_codec_configuration_sbc_t; 156 157 static uint8_t events_num = 1; 158 159 static uint8_t events[] = { 160 AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED 161 }; 162 163 static uint8_t companies_num = 1; 164 static uint8_t companies[] = { 165 0x00, 0x19, 0x58 //BT SIG registered CompanyID 166 }; 167 #ifdef HAVE_BTSTACK_STDIN 168 // pts: 169 static const char * device_addr_string = "6C:72:E7:10:22:EE"; 170 // mac 2013: static const char * device_addr_string = "84:38:35:65:d1:15"; 171 // iPhone 5S: 172 // static const char * device_addr_string = "54:E4:3A:26:A2:39"; 173 #endif 174 175 static uint8_t sdp_avdtp_sink_service_buffer[150]; 176 static uint8_t sdp_avrcp_target_service_buffer[150]; 177 static avdtp_media_codec_configuration_sbc_t sbc_configuration; 178 static uint16_t a2dp_cid = 0; 179 static uint8_t a2dp_local_seid = 0; 180 static uint8_t value[100]; 181 182 static btstack_packet_callback_registration_t hci_event_callback_registration; 183 184 static int media_initialized = 0; 185 186 #ifdef HAVE_BTSTACK_STDIN 187 static bd_addr_t device_addr; 188 #endif 189 190 static uint16_t avrcp_cid = 0; 191 static uint8_t avrcp_connected = 0; 192 static uint8_t sdp_avrcp_controller_service_buffer[200]; 193 194 static uint8_t media_sbc_codec_capabilities[] = { 195 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 196 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 197 2, 53 198 }; 199 200 static uint8_t media_sbc_codec_configuration[] = { 201 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 202 (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 203 2, 53 204 }; 205 206 static btstack_resample_t resample_instance; 207 208 /* @section Main Application Setup 209 * 210 * @text The Listing MainConfiguration shows how to setup AD2P Sink and AVRCP controller services. 211 * To announce A2DP Sink and AVRCP Controller services, you need to create corresponding 212 * SDP records and register them with the SDP service. 213 * You'll also need to register several packet handlers: 214 * - a2dp_sink_packet_handler - handles events on stream connection status (established, released), the media codec configuration, and, the status of the stream itself (opened, paused, stopped). 215 * - handle_l2cap_media_data_packet - used to receive streaming data. If STORE_TO_WAV_FILE directive (check btstack_config.h) is used, the SBC decoder will be used to decode the SBC data into PCM frames. The resulting PCM frames are then processed in the SBC Decoder callback. 216 * - stdin_process callback - used to trigger AVRCP commands to the A2DP Source device, such are get now playing info, start, stop, volume control. Requires HAVE_BTSTACK_STDIN. 217 * - avrcp_controller_packet_handler - used to receive answers for AVRCP commands, 218 * 219 * @text Note, currently only the SBC codec is supported. 220 * If you want to store the audio data in a file, you'll need to define STORE_TO_WAV_FILE. 221 * If STORE_TO_WAV_FILE directive is defined, the SBC decoder needs to get initialized when a2dp_sink_packet_handler receives event A2DP_SUBEVENT_STREAM_STARTED. 222 * The initialization of the SBC decoder requires a callback that handles PCM data: 223 * - handle_pcm_data - handles PCM audio frames. Here, they are stored a in wav file if STORE_TO_WAV_FILE is defined, and/or played using the audio library. 224 */ 225 226 /* LISTING_START(MainConfiguration): Setup Audio Sink and AVRCP Controller services */ 227 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size); 228 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 229 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 230 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 231 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 232 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size); 233 234 static int a2dp_and_avrcp_setup(void){ 235 236 l2cap_init(); 237 // Initialize AVDTP Sink 238 a2dp_sink_init(); 239 a2dp_sink_register_packet_handler(&a2dp_sink_packet_handler); 240 a2dp_sink_register_media_handler(&handle_l2cap_media_data_packet); 241 242 avdtp_stream_endpoint_t * local_stream_endpoint = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO, 243 AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities), 244 media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration)); 245 if (!local_stream_endpoint){ 246 printf("A2DP Sink: not enough memory to create local stream endpoint\n"); 247 return 1; 248 } 249 a2dp_local_seid = avdtp_local_seid(local_stream_endpoint); 250 251 // Initialize AVRCP service. 252 avrcp_init(); 253 avrcp_register_packet_handler(&avrcp_packet_handler); 254 255 // Initialize AVRCP Controller 256 avrcp_controller_init(); 257 avrcp_controller_register_packet_handler(&avrcp_controller_packet_handler); 258 259 // Initialize AVRCP Target 260 avrcp_target_init(); 261 avrcp_target_register_packet_handler(&avrcp_target_packet_handler); 262 263 // Initialize SDP 264 sdp_init(); 265 // setup AVDTP sink 266 memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer)); 267 a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, 1, NULL, NULL); 268 sdp_register_service(sdp_avdtp_sink_service_buffer); 269 270 // setup AVRCP Controller 271 memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); 272 uint16_t controller_supported_features = (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_CATEGORY_PLAYER_OR_RECORDER); 273 #ifdef AVRCP_BROWSING_ENABLED 274 controller_supported_features |= (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_BROWSING); 275 #endif 276 avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10002, controller_supported_features, NULL, NULL); 277 sdp_register_service(sdp_avrcp_controller_service_buffer); 278 279 // setup AVRCP Target 280 memset(sdp_avrcp_target_service_buffer, 0, sizeof(sdp_avrcp_target_service_buffer)); 281 uint16_t target_supported_features = (1 << AVRCP_TARGET_SUPPORTED_FEATURE_CATEGORY_MONITOR_OR_AMPLIFIER); 282 avrcp_target_create_sdp_record(sdp_avrcp_target_service_buffer, 0x10003, target_supported_features, NULL, NULL); 283 sdp_register_service(sdp_avrcp_target_service_buffer); 284 285 gap_set_local_name("A2DP Sink Demo 00:00:00:00:00:00"); 286 gap_discoverable_control(1); 287 gap_set_class_of_device(0x200408); 288 289 /* Register for HCI events */ 290 hci_event_callback_registration.callback = &hci_packet_handler; 291 hci_add_event_handler(&hci_event_callback_registration); 292 293 #ifdef HAVE_POSIX_FILE_IO 294 if (!btstack_audio_sink_get_instance()){ 295 printf("No audio playback.\n"); 296 } else { 297 printf("Audio playback supported.\n"); 298 } 299 #ifdef STORE_TO_WAV_FILE 300 printf("Audio will be stored to \'%s\' file.\n", wav_filename); 301 #endif 302 #endif 303 return 0; 304 } 305 306 static void playback_handler(int16_t * buffer, uint16_t num_audio_frames){ 307 308 #ifdef STORE_TO_WAV_FILE 309 int wav_samples = num_audio_frames * NUM_CHANNELS; 310 int16_t * wav_buffer = buffer; 311 #endif 312 313 // called from lower-layer but guaranteed to be on main thread 314 if (sbc_frame_size == 0){ 315 memset(buffer, 0, num_audio_frames * BYTES_PER_FRAME); 316 return; 317 } 318 319 // first fill from resampled audio 320 uint32_t bytes_read; 321 btstack_ring_buffer_read(&decoded_audio_ring_buffer, (uint8_t *) buffer, num_audio_frames * BYTES_PER_FRAME, &bytes_read); 322 buffer += bytes_read / NUM_CHANNELS; 323 num_audio_frames -= bytes_read / BYTES_PER_FRAME; 324 325 // then start decoding sbc frames using request_* globals 326 request_buffer = buffer; 327 request_frames = num_audio_frames; 328 while (request_frames && btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) >= sbc_frame_size){ 329 // decode frame 330 uint8_t sbc_frame[MAX_SBC_FRAME_SIZE]; 331 btstack_ring_buffer_read(&sbc_frame_ring_buffer, sbc_frame, sbc_frame_size, &bytes_read); 332 btstack_sbc_decoder_process_data(&state, 0, sbc_frame, sbc_frame_size); 333 } 334 335 #ifdef STORE_TO_WAV_FILE 336 audio_frame_count += num_audio_frames; 337 wav_writer_write_int16(wav_samples, wav_buffer); 338 #endif 339 } 340 341 static void handle_pcm_data(int16_t * data, int num_audio_frames, int num_channels, int sample_rate, void * context){ 342 UNUSED(sample_rate); 343 UNUSED(context); 344 UNUSED(num_channels); // must be stereo == 2 345 346 const btstack_audio_sink_t * audio_sink = btstack_audio_sink_get_instance(); 347 if (!audio_sink){ 348 #ifdef STORE_TO_WAV_FILE 349 audio_frame_count += num_audio_frames; 350 wav_writer_write_int16(num_audio_frames * NUM_CHANNELS, data); 351 #endif 352 return; 353 } 354 355 // resample into request buffer - add some additional space for resampling 356 int16_t output_buffer[(128+16) * NUM_CHANNELS]; // 16 * 8 * 2 357 uint32_t resampled_frames = btstack_resample_block(&resample_instance, data, num_audio_frames, output_buffer); 358 359 // store data in btstack_audio buffer first 360 int frames_to_copy = btstack_min(resampled_frames, request_frames); 361 memcpy(request_buffer, output_buffer, frames_to_copy * BYTES_PER_FRAME); 362 request_frames -= frames_to_copy; 363 request_buffer += frames_to_copy * NUM_CHANNELS; 364 365 // and rest in ring buffer 366 int frames_to_store = resampled_frames - frames_to_copy; 367 if (frames_to_store){ 368 int status = btstack_ring_buffer_write(&decoded_audio_ring_buffer, (uint8_t *)&output_buffer[frames_to_copy * NUM_CHANNELS], frames_to_store * BYTES_PER_FRAME); 369 if (status){ 370 printf("Error storing samples in PCM ring buffer!!!\n"); 371 } 372 } 373 } 374 375 static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ 376 if (media_initialized) return 0; 377 378 btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); 379 380 #ifdef STORE_TO_WAV_FILE 381 wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); 382 #endif 383 384 #ifdef STORE_TO_SBC_FILE 385 sbc_file = fopen(sbc_filename, "wb"); 386 #endif 387 388 btstack_ring_buffer_init(&sbc_frame_ring_buffer, sbc_frame_storage, sizeof(sbc_frame_storage)); 389 btstack_ring_buffer_init(&decoded_audio_ring_buffer, decoded_audio_storage, sizeof(decoded_audio_storage)); 390 btstack_resample_init(&resample_instance, configuration.num_channels); 391 392 // setup audio playback 393 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 394 if (audio){ 395 audio->init(NUM_CHANNELS, configuration.sampling_frequency, &playback_handler); 396 } 397 398 audio_stream_started = 0; 399 media_initialized = 1; 400 return 0; 401 } 402 403 static void media_processing_start(void){ 404 if (!media_initialized) return; 405 // setup audio playback 406 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 407 if (audio){ 408 audio->start_stream(); 409 } 410 audio_stream_started = 1; 411 } 412 413 static void media_processing_pause(void){ 414 if (!media_initialized) return; 415 // stop audio playback 416 audio_stream_started = 0; 417 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 418 if (audio){ 419 audio->stop_stream(); 420 } 421 } 422 423 static void media_processing_close(void){ 424 if (!media_initialized) return; 425 media_initialized = 0; 426 audio_stream_started = 0; 427 sbc_frame_size = 0; 428 429 #ifdef STORE_TO_WAV_FILE 430 wav_writer_close(); 431 uint32_t total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; 432 433 printf("WAV Writer: Decoding done. Processed %u SBC frames:\n - %d good\n - %d bad\n", total_frames_nr, state.good_frames_nr, total_frames_nr - state.good_frames_nr); 434 printf("WAV Writer: Wrote %u audio frames to wav file: %s\n", audio_frame_count, wav_filename); 435 #endif 436 437 #ifdef STORE_TO_SBC_FILE 438 fclose(sbc_file); 439 #endif 440 441 // stop audio playback 442 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 443 if (audio){ 444 printf("close stream\n"); 445 audio->close(); 446 } 447 } 448 449 /* @section Handle Media Data Packet 450 * 451 * @text Media data packets, in this case the audio data, are received through the handle_l2cap_media_data_packet callback. 452 * Currently, only the SBC media codec is supported. Hence, the media data consists of the media packet header and the SBC packet. 453 * The SBC frame will be stored in a ring buffer for later processing (instead of decoding it to PCM right away which would require a much larger buffer) 454 * If the audio stream wasn't started already and there are enough SBC frames in the ring buffer, start playback. 455 */ 456 457 static int read_media_data_header(uint8_t * packet, int size, int * offset, avdtp_media_packet_header_t * media_header); 458 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header); 459 460 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size){ 461 UNUSED(seid); 462 int pos = 0; 463 464 avdtp_media_packet_header_t media_header; 465 if (!read_media_data_header(packet, size, &pos, &media_header)) return; 466 467 avdtp_sbc_codec_header_t sbc_header; 468 if (!read_sbc_header(packet, size, &pos, &sbc_header)) return; 469 470 #ifdef STORE_TO_SBC_FILE 471 fwrite(packet+pos, size-pos, 1, sbc_file); 472 #endif 473 474 const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance(); 475 // process data right away if there's no audio implementation active, e.g. on posix systems to store as .wav 476 if (!audio){ 477 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 478 return; 479 } 480 481 // store sbc frame size for buffer management 482 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 483 484 int status = btstack_ring_buffer_write(&sbc_frame_ring_buffer, packet+pos, size-pos); 485 if (status){ 486 printf("Error storing samples in SBC ring buffer!!!\n"); 487 } 488 489 // decide on audio sync drift based on number of sbc frames in queue 490 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) / sbc_frame_size; 491 uint32_t resampling_factor; 492 493 // nomimal factor (fixed-point 2^16) and compensation offset 494 uint32_t nomimal_factor = 0x10000; 495 uint32_t compensation = 0x00100; 496 497 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 498 resampling_factor = nomimal_factor - compensation; // stretch samples 499 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 500 resampling_factor = nomimal_factor; // nothing to do 501 } else { 502 resampling_factor = nomimal_factor + compensation; // compress samples 503 } 504 505 btstack_resample_set_factor(&resample_instance, resampling_factor); 506 507 // dump 508 // printf("%6u %03u %05x\n", (int) btstack_run_loop_get_time_ms(), sbc_frames_in_buffer, resampling_factor); 509 // log_info("%03u %05x", sbc_frames_in_buffer, resampling_factor); 510 511 // start stream if enough frames buffered 512 if (!audio_stream_started && sbc_frames_in_buffer >= OPTIMAL_FRAMES_MIN){ 513 audio_stream_started = 1; 514 // setup audio playback 515 if (audio){ 516 audio->start_stream(); 517 } 518 } 519 } 520 521 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header){ 522 int sbc_header_len = 12; // without crc 523 int pos = *offset; 524 525 if (size - pos < sbc_header_len){ 526 printf("Not enough data to read SBC header, expected %d, received %d\n", sbc_header_len, size-pos); 527 return 0; 528 } 529 530 sbc_header->fragmentation = get_bit16(packet[pos], 7); 531 sbc_header->starting_packet = get_bit16(packet[pos], 6); 532 sbc_header->last_packet = get_bit16(packet[pos], 5); 533 sbc_header->num_frames = packet[pos] & 0x0f; 534 pos++; 535 // printf("SBC HEADER: num_frames %u, fragmented %u, start %u, stop %u\n", sbc_header.num_frames, sbc_header.fragmentation, sbc_header.starting_packet, sbc_header.last_packet); 536 *offset = pos; 537 return 1; 538 } 539 540 static int read_media_data_header(uint8_t *packet, int size, int *offset, avdtp_media_packet_header_t *media_header){ 541 int media_header_len = 12; // without crc 542 int pos = *offset; 543 544 if (size - pos < media_header_len){ 545 printf("Not enough data to read media packet header, expected %d, received %d\n", media_header_len, size-pos); 546 return 0; 547 } 548 549 media_header->version = packet[pos] & 0x03; 550 media_header->padding = get_bit16(packet[pos],2); 551 media_header->extension = get_bit16(packet[pos],3); 552 media_header->csrc_count = (packet[pos] >> 4) & 0x0F; 553 pos++; 554 555 media_header->marker = get_bit16(packet[pos],0); 556 media_header->payload_type = (packet[pos] >> 1) & 0x7F; 557 pos++; 558 559 media_header->sequence_number = big_endian_read_16(packet, pos); 560 pos+=2; 561 562 media_header->timestamp = big_endian_read_32(packet, pos); 563 pos+=4; 564 565 media_header->synchronization_source = big_endian_read_32(packet, pos); 566 pos+=4; 567 *offset = pos; 568 return 1; 569 } 570 571 static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ 572 printf(" - num_channels: %d\n", configuration.num_channels); 573 printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); 574 printf(" - channel_mode: %d\n", configuration.channel_mode); 575 printf(" - block_length: %d\n", configuration.block_length); 576 printf(" - subbands: %d\n", configuration.subbands); 577 printf(" - allocation_method: %d\n", configuration.allocation_method); 578 printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); 579 printf("\n"); 580 } 581 582 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 583 UNUSED(channel); 584 UNUSED(size); 585 uint16_t local_cid; 586 uint8_t status = 0xFF; 587 bd_addr_t adress; 588 589 if (packet_type != HCI_EVENT_PACKET) return; 590 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 591 switch (packet[2]){ 592 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 593 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 594 if (avrcp_cid != 0 && avrcp_cid != local_cid) { 595 printf("AVRCP: Connection failed, expected 0x%02X cid, received 0x%02X\n", avrcp_cid, local_cid); 596 return; 597 } 598 599 status = avrcp_subevent_connection_established_get_status(packet); 600 if (status != ERROR_CODE_SUCCESS){ 601 printf("AVRCP: Connection failed: status 0x%02x\n", status); 602 avrcp_cid = 0; 603 return; 604 } 605 606 avrcp_cid = local_cid; 607 avrcp_connected = 1; 608 avrcp_subevent_connection_established_get_bd_addr(packet, adress); 609 printf("AVRCP: Connected to %s, cid 0x%02x\n", bd_addr_to_str(adress), avrcp_cid); 610 611 // automatically enable notifications 612 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 613 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 614 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 615 return; 616 } 617 618 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 619 printf("AVRCP: Channel released: cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 620 avrcp_cid = 0; 621 avrcp_connected = 0; 622 return; 623 default: 624 break; 625 } 626 } 627 628 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 629 UNUSED(channel); 630 UNUSED(size); 631 uint8_t status = 0xFF; 632 633 if (packet_type != HCI_EVENT_PACKET) return; 634 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 635 636 status = packet[5]; 637 if (!avrcp_cid) return; 638 639 // ignore INTERIM status 640 if (status == AVRCP_CTYPE_RESPONSE_INTERIM){ 641 switch (packet[2]){ 642 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED:{ 643 uint32_t playback_position_ms = avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet); 644 if (playback_position_ms == AVRCP_NO_TRACK_SELECTED_PLAYBACK_POSITION_CHANGED){ 645 printf("AVRCP Controller: playback position changed, no track is selected\n"); 646 } 647 break; 648 } 649 default: 650 break; 651 } 652 return; 653 } 654 655 memset(value, 0, sizeof(value)); 656 switch (packet[2]){ 657 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED: 658 printf("AVRCP Controller: Playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet)); 659 break; 660 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 661 printf("AVRCP Controller: Playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); 662 return; 663 case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: 664 printf("AVRCP Controller: Playing content changed\n"); 665 return; 666 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 667 printf("AVRCP Controller: Track changed\n"); 668 return; 669 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 670 printf("AVRCP Controller: Absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 671 return; 672 case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: 673 printf("AVRCP Controller: Changed\n"); 674 return; 675 case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ 676 uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); 677 uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); 678 printf("AVRCP Controller: %s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 679 break; 680 } 681 case AVRCP_SUBEVENT_NOW_PLAYING_TRACK_INFO: 682 printf("AVRCP Controller: Track: %d\n", avrcp_subevent_now_playing_track_info_get_track(packet)); 683 break; 684 685 case AVRCP_SUBEVENT_NOW_PLAYING_TOTAL_TRACKS_INFO: 686 printf("AVRCP Controller: Total Tracks: %d\n", avrcp_subevent_now_playing_total_tracks_info_get_total_tracks(packet)); 687 break; 688 689 case AVRCP_SUBEVENT_NOW_PLAYING_TITLE_INFO: 690 if (avrcp_subevent_now_playing_title_info_get_value_len(packet) > 0){ 691 memcpy(value, avrcp_subevent_now_playing_title_info_get_value(packet), avrcp_subevent_now_playing_title_info_get_value_len(packet)); 692 printf("AVRCP Controller: Title: %s\n", value); 693 } 694 break; 695 696 case AVRCP_SUBEVENT_NOW_PLAYING_ARTIST_INFO: 697 if (avrcp_subevent_now_playing_artist_info_get_value_len(packet) > 0){ 698 memcpy(value, avrcp_subevent_now_playing_artist_info_get_value(packet), avrcp_subevent_now_playing_artist_info_get_value_len(packet)); 699 printf("AVRCP Controller: Artist: %s\n", value); 700 } 701 break; 702 703 case AVRCP_SUBEVENT_NOW_PLAYING_ALBUM_INFO: 704 if (avrcp_subevent_now_playing_album_info_get_value_len(packet) > 0){ 705 memcpy(value, avrcp_subevent_now_playing_album_info_get_value(packet), avrcp_subevent_now_playing_album_info_get_value_len(packet)); 706 printf("AVRCP Controller: Album: %s\n", value); 707 } 708 break; 709 710 case AVRCP_SUBEVENT_NOW_PLAYING_GENRE_INFO: 711 if (avrcp_subevent_now_playing_genre_info_get_value_len(packet) > 0){ 712 memcpy(value, avrcp_subevent_now_playing_genre_info_get_value(packet), avrcp_subevent_now_playing_genre_info_get_value_len(packet)); 713 printf("AVRCP Controller: Genre: %s\n", value); 714 } 715 break; 716 717 case AVRCP_SUBEVENT_PLAY_STATUS: 718 printf("AVRCP Controller: Song length %"PRIu32" ms, Song position %"PRIu32" ms, Play status %s\n", 719 avrcp_subevent_play_status_get_song_length(packet), 720 avrcp_subevent_play_status_get_song_position(packet), 721 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 722 break; 723 724 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 725 printf("AVRCP Controller: %s done\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 726 break; 727 728 case AVRCP_SUBEVENT_OPERATION_START: 729 printf("AVRCP Controller: Start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 730 break; 731 732 default: 733 printf("AVRCP Controller: Event 0x%02x is not parsed\n", packet[2]); 734 break; 735 } 736 } 737 738 739 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 740 UNUSED(channel); 741 UNUSED(size); 742 uint8_t status = ERROR_CODE_SUCCESS; 743 744 if (packet_type != HCI_EVENT_PACKET) return; 745 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 746 747 int volume; 748 749 switch (packet[2]){ 750 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 751 volume = avrcp_subevent_notification_volume_changed_get_absolute_volume(packet); 752 volume_percentage = volume * 100 / 127; 753 printf("AVRCP Target : Volume set to %d%% (%d)\n", volume_percentage, volume); 754 break; 755 756 case AVRCP_SUBEVENT_EVENT_IDS_QUERY: 757 status = avrcp_target_supported_events(avrcp_cid, events_num, events, sizeof(events)); 758 break; 759 case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: 760 status = avrcp_target_supported_companies(avrcp_cid, companies_num, companies, sizeof(companies)); 761 break; 762 case AVRCP_SUBEVENT_OPERATION:{ 763 avrcp_operation_id_t operation_id = avrcp_subevent_operation_get_operation_id(packet); 764 // if (!media_tracker.connected) break; 765 switch (operation_id){ 766 case AVRCP_OPERATION_ID_PLAY: 767 printf("AVRCP Target : PLAY\n"); 768 break; 769 case AVRCP_OPERATION_ID_PAUSE: 770 printf("AVRCP Target : PAUSE\n"); 771 break; 772 case AVRCP_OPERATION_ID_STOP: 773 printf("AVRCP Target : STOP\n"); 774 break; 775 case AVRCP_OPERATION_ID_REWIND: 776 printf("AVRCP Target : REWIND\n"); 777 break; 778 case AVRCP_OPERATION_ID_FAST_FORWARD: 779 printf("AVRCP Target : FAST_FORWARD\n"); 780 break; 781 case AVRCP_OPERATION_ID_FORWARD: 782 printf("AVRCP Target : FORWARD\n"); 783 break; 784 case AVRCP_OPERATION_ID_BACKWARD: 785 printf("AVRCP Target : BACKWARD\n"); 786 break; 787 case AVRCP_OPERATION_ID_SKIP: 788 printf("AVRCP Target : SKIP\n"); 789 break; 790 case AVRCP_OPERATION_ID_MUTE: 791 printf("AVRCP Target : MUTE\n"); 792 break; 793 case AVRCP_OPERATION_ID_CHANNEL_UP: 794 printf("AVRCP Target : CHANNEL_UP\n"); 795 break; 796 case AVRCP_OPERATION_ID_CHANNEL_DOWN: 797 printf("AVRCP Target : CHANNEL_DOWN\n"); 798 break; 799 case AVRCP_OPERATION_ID_SELECT: 800 printf("AVRCP Target : SELECT\n"); 801 break; 802 case AVRCP_OPERATION_ID_UP: 803 printf("AVRCP Target : UP\n"); 804 break; 805 case AVRCP_OPERATION_ID_DOWN: 806 printf("AVRCP Target : DOWN\n"); 807 break; 808 case AVRCP_OPERATION_ID_LEFT: 809 printf("AVRCP Target : LEFT\n"); 810 break; 811 case AVRCP_OPERATION_ID_RIGHT: 812 printf("AVRCP Target : RIGTH\n"); 813 break; 814 case AVRCP_OPERATION_ID_ROOT_MENU: 815 printf("AVRCP Target : ROOT_MENU\n"); 816 break; 817 default: 818 return; 819 } 820 break; 821 } 822 default: 823 printf("AVRCP Target : Event 0x%02x is not parsed\n", packet[2]); 824 break; 825 } 826 } 827 828 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 829 UNUSED(channel); 830 UNUSED(size); 831 if (packet_type != HCI_EVENT_PACKET) return; 832 if (hci_event_packet_get_type(packet) == HCI_EVENT_PIN_CODE_REQUEST) { 833 bd_addr_t address; 834 printf("Pin code request - using '0000'\n"); 835 hci_event_pin_code_request_get_bd_addr(packet, address); 836 gap_pin_code_response(address, "0000"); 837 } 838 } 839 840 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 841 UNUSED(channel); 842 UNUSED(size); 843 uint16_t cid; 844 bd_addr_t address; 845 uint8_t status; 846 847 if (packet_type != HCI_EVENT_PACKET) return; 848 if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; 849 850 switch (packet[2]){ 851 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 852 printf("A2DP Sink : Received non SBC codec - not implemented\n"); 853 break; 854 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 855 printf("A2DP Sink : Received SBC codec configuration\n"); 856 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 857 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 858 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 859 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 860 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 861 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 862 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 863 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 864 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 865 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 866 dump_sbc_configuration(sbc_configuration); 867 868 if (sbc_configuration.reconfigure){ 869 media_processing_close(); 870 } 871 // prepare media processing 872 media_processing_init(sbc_configuration); 873 break; 874 } 875 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 876 a2dp_subevent_stream_established_get_bd_addr(packet, address); 877 status = a2dp_subevent_stream_established_get_status(packet); 878 cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 879 if (!a2dp_cid){ 880 // incoming connection 881 a2dp_cid = cid; 882 } else if (cid != a2dp_cid) { 883 break; 884 } 885 if (status){ 886 printf("A2DP Sink : Streaming connection failed, status 0x%02x\n", status); 887 break; 888 } 889 890 memcpy(device_addr, address, 6); 891 a2dp_local_seid = a2dp_subevent_stream_established_get_local_seid(packet); 892 printf("A2DP Sink : Streaming connection is established, address %s, cid 0x%02X, local seid %d\n", bd_addr_to_str(address), a2dp_cid, a2dp_local_seid); 893 break; 894 895 case A2DP_SUBEVENT_STREAM_STARTED: 896 cid = a2dp_subevent_stream_started_get_a2dp_cid(packet); 897 if (cid != a2dp_cid) break; 898 a2dp_local_seid = a2dp_subevent_stream_started_get_local_seid(packet); 899 printf("A2DP Sink : Stream started\n"); 900 media_processing_start(); 901 break; 902 903 case A2DP_SUBEVENT_STREAM_SUSPENDED: 904 cid = a2dp_subevent_stream_suspended_get_a2dp_cid(packet); 905 if (cid != a2dp_cid) break; 906 a2dp_local_seid = a2dp_subevent_stream_suspended_get_local_seid(packet); 907 printf("A2DP Sink : Stream paused\n"); 908 media_processing_pause(); 909 break; 910 911 case A2DP_SUBEVENT_STREAM_RELEASED: 912 a2dp_local_seid = a2dp_subevent_stream_released_get_local_seid(packet); 913 printf("A2DP Sink : Stream released\n"); 914 media_processing_close(); 915 break; 916 case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: 917 cid = a2dp_subevent_signaling_connection_released_get_a2dp_cid(packet); 918 printf("A2DP Sink : Signaling connection released\n"); 919 media_processing_close(); 920 break; 921 default: 922 printf("A2DP Sink : Not parsed 0x%02x\n", packet[2]); 923 break; 924 } 925 } 926 927 #ifdef HAVE_BTSTACK_STDIN 928 static void show_usage(void){ 929 bd_addr_t iut_address; 930 gap_local_bd_addr(iut_address); 931 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 932 printf("b - AVDTP Sink create connection to addr %s\n", bd_addr_to_str(device_addr)); 933 printf("B - AVDTP Sink disconnect\n"); 934 printf("c - AVRCP create connection to addr %s\n", bd_addr_to_str(device_addr)); 935 printf("C - AVRCP disconnect\n"); 936 937 printf("w - delay report\n"); 938 939 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 940 printf("O - get play status\n"); 941 printf("j - get now playing info\n"); 942 printf("k - play\n"); 943 printf("K - stop\n"); 944 printf("L - pause\n"); 945 printf("u - start fast forward\n"); 946 printf("U - stop fast forward\n"); 947 printf("n - start rewind\n"); 948 printf("N - stop rewind\n"); 949 printf("i - forward\n"); 950 printf("I - backward\n"); 951 printf("M - mute\n"); 952 printf("r - skip\n"); 953 printf("q - query repeat and shuffle mode\n"); 954 printf("v - repeat single track\n"); 955 printf("x - repeat all tracks\n"); 956 printf("X - disable repeat mode\n"); 957 printf("z - shuffle all tracks\n"); 958 printf("Z - disable shuffle mode\n"); 959 960 printf("a/A - register/deregister TRACK_CHANGED\n"); 961 printf("R/P - register/deregister PLAYBACK_POS_CHANGED\n"); 962 963 printf("\n--- Volume Control ---\n"); 964 printf("t - volume up for 10 percent\n"); 965 printf("T - volume down for 10 percent\n"); 966 967 printf("---\n"); 968 } 969 #endif 970 971 #ifdef HAVE_BTSTACK_STDIN 972 static void stdin_process(char cmd){ 973 uint8_t status = ERROR_CODE_SUCCESS; 974 975 switch (cmd){ 976 case 'b': 977 status = a2dp_sink_establish_stream(device_addr, a2dp_local_seid, &a2dp_cid); 978 printf(" - Create AVDTP connection to addr %s, and local seid %d, expected cid 0x%02x.\n", bd_addr_to_str(device_addr), a2dp_local_seid, a2dp_cid); 979 break; 980 case 'B': 981 printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 982 status = avdtp_sink_disconnect(a2dp_cid); 983 break; 984 case 'c': 985 printf(" - Create AVRCP connection to addr %s.\n", bd_addr_to_str(device_addr)); 986 status = avrcp_connect(device_addr, &avrcp_cid); 987 break; 988 case 'C': 989 printf(" - AVRCP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 990 status = avrcp_disconnect(avrcp_cid); 991 break; 992 993 case '\n': 994 case '\r': 995 break; 996 case 'w': 997 printf("Send delay report\n"); 998 avdtp_sink_delay_report(a2dp_cid, a2dp_local_seid, 100); 999 break; 1000 // Volume Control 1001 case 't': 1002 volume_percentage = volume_percentage <= 90 ? volume_percentage + 10 : 100; 1003 printf(" - volume up for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 1004 status = avrcp_target_volume_changed(avrcp_cid, volume_percentage * 127 / 100); 1005 break; 1006 case 'T': 1007 volume_percentage = volume_percentage >= 10 ? volume_percentage - 10 : 0; 1008 printf(" - volume down for 10 percent, %d%% (%d) \n", volume_percentage, volume_percentage * 127 / 100); 1009 status = avrcp_target_volume_changed(avrcp_cid, volume_percentage * 127 / 100); 1010 break; 1011 1012 case 'O': 1013 printf(" - get play status\n"); 1014 status = avrcp_controller_get_play_status(avrcp_cid); 1015 break; 1016 case 'j': 1017 printf(" - get now playing info\n"); 1018 status = avrcp_controller_get_now_playing_info(avrcp_cid); 1019 break; 1020 case 'k': 1021 printf(" - play\n"); 1022 status = avrcp_controller_play(avrcp_cid); 1023 break; 1024 case 'K': 1025 printf(" - stop\n"); 1026 status = avrcp_controller_stop(avrcp_cid); 1027 break; 1028 case 'L': 1029 printf(" - pause\n"); 1030 status = avrcp_controller_pause(avrcp_cid); 1031 break; 1032 case 'u': 1033 printf(" - start fast forward\n"); 1034 status = avrcp_controller_press_and_hold_fast_forward(avrcp_cid); 1035 break; 1036 case 'U': 1037 printf(" - stop fast forward\n"); 1038 status = avrcp_controller_release_press_and_hold_cmd(avrcp_cid); 1039 break; 1040 case 'n': 1041 printf(" - start rewind\n"); 1042 status = avrcp_controller_press_and_hold_rewind(avrcp_cid); 1043 break; 1044 case 'N': 1045 printf(" - stop rewind\n"); 1046 status = avrcp_controller_release_press_and_hold_cmd(avrcp_cid); 1047 break; 1048 case 'i': 1049 printf(" - forward\n"); 1050 status = avrcp_controller_forward(avrcp_cid); 1051 break; 1052 case 'I': 1053 printf(" - backward\n"); 1054 status = avrcp_controller_backward(avrcp_cid); 1055 break; 1056 case 'M': 1057 printf(" - mute\n"); 1058 status = avrcp_controller_mute(avrcp_cid); 1059 break; 1060 case 'r': 1061 printf(" - skip\n"); 1062 status = avrcp_controller_skip(avrcp_cid); 1063 break; 1064 case 'q': 1065 printf(" - query repeat and shuffle mode\n"); 1066 status = avrcp_controller_query_shuffle_and_repeat_modes(avrcp_cid); 1067 break; 1068 case 'v': 1069 printf(" - repeat single track\n"); 1070 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 1071 break; 1072 case 'x': 1073 printf(" - repeat all tracks\n"); 1074 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 1075 break; 1076 case 'X': 1077 printf(" - disable repeat mode\n"); 1078 status = avrcp_controller_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_OFF); 1079 break; 1080 case 'z': 1081 printf(" - shuffle all tracks\n"); 1082 status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 1083 break; 1084 case 'Z': 1085 printf(" - disable shuffle mode\n"); 1086 status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_OFF); 1087 break; 1088 case 'a': 1089 printf("AVRCP: enable notification TRACK_CHANGED\n"); 1090 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1091 break; 1092 case 'A': 1093 printf("AVRCP: disable notification TRACK_CHANGED\n"); 1094 avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1095 break; 1096 case 'R': 1097 printf("AVRCP: enable notification PLAYBACK_POS_CHANGED\n"); 1098 avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1099 break; 1100 case 'P': 1101 printf("AVRCP: disable notification PLAYBACK_POS_CHANGED\n"); 1102 avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1103 break; 1104 1105 default: 1106 show_usage(); 1107 return; 1108 } 1109 if (status != ERROR_CODE_SUCCESS){ 1110 printf("Could not perform command, status 0x%2x\n", status); 1111 } 1112 } 1113 #endif 1114 1115 int btstack_main(int argc, const char * argv[]); 1116 int btstack_main(int argc, const char * argv[]){ 1117 UNUSED(argc); 1118 (void)argv; 1119 1120 a2dp_and_avrcp_setup(); 1121 1122 #ifdef HAVE_BTSTACK_STDIN 1123 // parse human readable Bluetooth address 1124 sscanf_bd_addr(device_addr_string, device_addr); 1125 btstack_stdin_setup(stdin_process); 1126 #endif 1127 1128 // turn on! 1129 printf("Starting BTstack ...\n"); 1130 hci_power_control(HCI_POWER_ON); 1131 return 0; 1132 } 1133