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 // ***************************************************************************** 62 63 #include <inttypes.h> 64 #include <stdint.h> 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include <string.h> 68 69 #include "btstack.h" 70 #include "btstack_resample.h" 71 72 //#define AVRCP_BROWSING_ENABLED 73 74 #ifdef HAVE_BTSTACK_STDIN 75 #include "btstack_stdin.h" 76 #endif 77 78 #include "btstack_ring_buffer.h" 79 80 #ifdef HAVE_POSIX_FILE_IO 81 #include "wav_util.h" 82 #define STORE_SBC_TO_SBC_FILE 83 #define STORE_SBC_TO_WAV_FILE 84 #endif 85 86 #define NUM_CHANNELS 2 87 #define BYTES_PER_FRAME (2*NUM_CHANNELS) 88 #define MAX_SBC_FRAME_SIZE 120 89 90 // SBC Decoder for WAV file or live playback 91 static btstack_sbc_decoder_state_t state; 92 static btstack_sbc_mode_t mode = SBC_MODE_STANDARD; 93 94 // ring buffer for SBC Frames 95 // below 30: add samples, 30-40: fine, above 40: drop samples 96 #define OPTIMAL_FRAMES_MIN 30 97 #define OPTIMAL_FRAMES_MAX 40 98 #define ADDITIONAL_FRAMES 20 99 static uint8_t sbc_frame_storage[(OPTIMAL_FRAMES_MAX + ADDITIONAL_FRAMES) * MAX_SBC_FRAME_SIZE]; 100 static btstack_ring_buffer_t sbc_frame_ring_buffer; 101 static unsigned int sbc_frame_size; 102 103 // rest buffer for not fully used sbc frames, with additional frames for resampling 104 static uint8_t decoded_audio_storage[(128+16) * BYTES_PER_FRAME]; 105 static btstack_ring_buffer_t decoded_audio_ring_buffer; 106 107 // 108 static int audio_stream_started; 109 110 // temp storage of lower-layer request 111 static int16_t * request_buffer; 112 static int request_frames; 113 114 #define STORE_FROM_PLAYBACK 115 116 // WAV File 117 #ifdef STORE_SBC_TO_WAV_FILE 118 static int frame_count = 0; 119 static char * wav_filename = "avdtp_sink.wav"; 120 #endif 121 122 #ifdef STORE_SBC_TO_SBC_FILE 123 static FILE * sbc_file; 124 static char * sbc_filename = "avdtp_sink.sbc"; 125 #endif 126 127 typedef struct { 128 // bitmaps 129 uint8_t sampling_frequency_bitmap; 130 uint8_t channel_mode_bitmap; 131 uint8_t block_length_bitmap; 132 uint8_t subbands_bitmap; 133 uint8_t allocation_method_bitmap; 134 uint8_t min_bitpool_value; 135 uint8_t max_bitpool_value; 136 } adtvp_media_codec_information_sbc_t; 137 138 typedef struct { 139 int reconfigure; 140 int num_channels; 141 int sampling_frequency; 142 int channel_mode; 143 int block_length; 144 int subbands; 145 int allocation_method; 146 int min_bitpool_value; 147 int max_bitpool_value; 148 int frames_per_buffer; 149 } avdtp_media_codec_configuration_sbc_t; 150 151 static uint8_t events_num = 1; 152 153 static uint8_t events[] = { 154 AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED 155 }; 156 157 static uint8_t companies_num = 1; 158 static uint8_t companies[] = { 159 0x00, 0x19, 0x58 //BT SIG registered CompanyID 160 }; 161 #ifdef HAVE_BTSTACK_STDIN 162 // pts: static bd_addr_t remote = {0x00, 0x1B, 0xDC, 0x08, 0x0A, 0xA5}; 163 // mac 2013: static const char * device_addr_string = "84:38:35:65:d1:15"; 164 // iPhone 5S: 165 static const char * device_addr_string = "54:E4:3A:26:A2:39"; 166 #endif 167 168 static uint8_t sdp_avdtp_sink_service_buffer[150]; 169 static uint8_t sdp_avrcp_target_service_buffer[150]; 170 static avdtp_media_codec_configuration_sbc_t sbc_configuration; 171 static uint16_t a2dp_cid = 0; 172 static uint8_t local_seid = 0; 173 static uint8_t value[100]; 174 175 static btstack_packet_callback_registration_t hci_event_callback_registration; 176 177 static int media_initialized = 0; 178 179 #ifdef HAVE_BTSTACK_STDIN 180 static bd_addr_t device_addr; 181 #endif 182 183 static uint16_t a2dp_sink_connected = 0; 184 static uint16_t avrcp_controller_cid = 0; 185 static uint16_t avrcp_target_cid = 0; 186 static uint8_t avrcp_connected = 0; 187 static uint8_t sdp_avrcp_controller_service_buffer[200]; 188 189 static uint8_t media_sbc_codec_capabilities[] = { 190 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 191 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 192 2, 53 193 }; 194 195 static uint8_t media_sbc_codec_configuration[] = { 196 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 197 (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 198 2, 53 199 }; 200 201 static btstack_resample_t resample_instance; 202 203 /* @section Main Application Setup 204 * 205 * @text The Listing MainConfiguration shows how to setup AD2P Sink and AVRCP controller services. 206 * To announce A2DP Sink and AVRCP Controller services, you need to create corresponding 207 * SDP records and register them with the SDP service. 208 * You'll also need to register several packet handlers: 209 * - 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). 210 * - handle_l2cap_media_data_packet - used to receive streaming data. If HAVE_PORTAUDIO or STORE_SBC_TO_WAV_FILE directives (check btstack_config.h) are 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. 211 * - 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. 212 * - avrcp_controller_packet_handler - used to receive answers for AVRCP commands, 213 * 214 * @text Note, currently only the SBC codec is supported. 215 * If you want to store the audio data in a file, you'll need to define STORE_SBC_TO_WAV_FILE. The HAVE_PORTAUDIO directive indicates if the audio is played back via PortAudio. 216 * If HAVE_PORTAUDIO or STORE_SBC_TO_WAV_FILE directives is defined, the SBC decoder needs to get initialized when a2dp_sink_packet_handler receives event A2DP_SUBEVENT_STREAM_STARTED. 217 * The initialization of the SBC decoder requires a callback that handles PCM data: 218 * - handle_pcm_data - handles PCM audio frames. Here, they are stored a in wav file if STORE_SBC_TO_WAV_FILE is defined, and/or played using the PortAudio library if HAVE_PORTAUDIO is defined. 219 */ 220 221 /* LISTING_START(MainConfiguration): Setup Audio Sink and AVRCP Controller services */ 222 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size); 223 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 224 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 225 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 226 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size); 227 228 static int a2dp_and_avrcp_setup(void){ 229 230 l2cap_init(); 231 // Initialize AVDTP Sink 232 a2dp_sink_init(); 233 a2dp_sink_register_packet_handler(&a2dp_sink_packet_handler); 234 a2dp_sink_register_media_handler(&handle_l2cap_media_data_packet); 235 236 uint8_t status = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO, AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities), media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration), &local_seid); 237 if (status != ERROR_CODE_SUCCESS){ 238 printf("A2DP Sink: not enough memory to create local stream endpoint\n"); 239 return 1; 240 } 241 // Initialize AVRCP Controller 242 avrcp_controller_init(); 243 avrcp_controller_register_packet_handler(&avrcp_controller_packet_handler); 244 245 // Initialize AVRCP Target 246 avrcp_target_init(); 247 avrcp_target_register_packet_handler(&avrcp_target_packet_handler); 248 249 // Initialize SDP 250 sdp_init(); 251 // setup AVDTP sink 252 memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer)); 253 a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, 1, NULL, NULL); 254 sdp_register_service(sdp_avdtp_sink_service_buffer); 255 256 // setup AVRCP Controller 257 memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); 258 uint16_t controller_supported_features = (1 << AVRCP_TARGET_SUPPORTED_FEATURE_CATEGORY_MONITOR_OR_AMPLIFIER); 259 #ifdef AVRCP_BROWSING_ENABLED 260 controller_supported_features |= (1 << AVRCP_CONTROLLER_SUPPORTED_FEATURE_BROWSING); 261 #endif 262 avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10002, controller_supported_features, NULL, NULL); 263 sdp_register_service(sdp_avrcp_controller_service_buffer); 264 265 // setup AVRCP Target 266 memset(sdp_avrcp_target_service_buffer, 0, sizeof(sdp_avrcp_target_service_buffer)); 267 uint16_t target_supported_features = (1 << AVRCP_TARGET_SUPPORTED_FEATURE_CATEGORY_MONITOR_OR_AMPLIFIER); 268 avrcp_target_create_sdp_record(sdp_avrcp_target_service_buffer, 0x10003, target_supported_features, NULL, NULL); 269 sdp_register_service(sdp_avrcp_target_service_buffer); 270 271 gap_set_local_name("A2DP Sink Demo 00:00:00:00:00:00"); 272 gap_discoverable_control(1); 273 gap_set_class_of_device(0x200408); 274 275 /* Register for HCI events */ 276 hci_event_callback_registration.callback = &hci_packet_handler; 277 hci_add_event_handler(&hci_event_callback_registration); 278 279 return 0; 280 } 281 282 static void playback_handler(int16_t * buffer, uint16_t num_frames){ 283 284 #ifdef STORE_FROM_PLAYBACK 285 #ifdef STORE_SBC_TO_WAV_FILE 286 int wav_samples = num_frames * NUM_CHANNELS; 287 int16_t * wav_buffer = buffer; 288 #endif 289 #endif 290 291 // called from lower-layer but guaranteed to be on main thread 292 293 // first fill from resampled audio 294 uint32_t bytes_read; 295 btstack_ring_buffer_read(&decoded_audio_ring_buffer, (uint8_t *) buffer, num_frames * BYTES_PER_FRAME, &bytes_read); 296 buffer += bytes_read / NUM_CHANNELS; 297 num_frames -= bytes_read / BYTES_PER_FRAME; 298 299 // then start decoding sbc frames using request_* globals 300 request_buffer = buffer; 301 request_frames = num_frames; 302 while (request_frames){ 303 if (btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) >= sbc_frame_size){ 304 // decode frame 305 uint8_t sbc_frame[MAX_SBC_FRAME_SIZE]; 306 btstack_ring_buffer_read(&sbc_frame_ring_buffer, sbc_frame, sbc_frame_size, &bytes_read); 307 btstack_sbc_decoder_process_data(&state, 0, sbc_frame, sbc_frame_size); 308 } else { 309 printf("Error: no SBC frame ready in ring buffer\n"); 310 } 311 } 312 313 #ifdef STORE_FROM_PLAYBACK 314 #ifdef STORE_SBC_TO_WAV_FILE 315 wav_writer_write_int16(wav_samples, wav_buffer); 316 #endif 317 #endif 318 } 319 320 static void handle_pcm_data(int16_t * data, int num_frames, int num_channels, int sample_rate, void * context){ 321 UNUSED(sample_rate); 322 UNUSED(context); 323 UNUSED(num_channels); // must be stereo == 2 324 325 #ifdef STORE_DECODED 326 wav_writer_write_int16(num_frames * NUM_CHANNELS, data); 327 #endif 328 329 // resample into request buffer - add some additional space for resampling 330 int16_t output_buffer[(128+16) * NUM_CHANNELS]; // 16 * 8 * 2 331 uint32_t resampled_frames = btstack_resample_block(&resample_instance, data, num_frames, output_buffer); 332 333 #ifdef STORE_RESAMPLED 334 #ifdef STORE_SBC_TO_WAV_FILE 335 wav_writer_write_int16(resampled_frames * NUM_CHANNELS, output_buffer); 336 frame_count++; 337 #endif 338 #endif 339 340 const btstack_audio_t * audio = btstack_audio_get_instance(); 341 if (!audio) return; 342 343 // store data in btstack_audio buffer first 344 int frames_to_copy = btstack_min(resampled_frames, request_frames); 345 memcpy(request_buffer, output_buffer, frames_to_copy * BYTES_PER_FRAME); 346 request_frames -= frames_to_copy; 347 request_buffer += frames_to_copy * NUM_CHANNELS; 348 349 #ifdef STORE_BEFORE_PLAYBACK 350 #ifdef STORE_SBC_TO_WAV_FILE 351 wav_writer_write_int16(frames_to_copy * NUM_CHANNELS, output_buffer); 352 frame_count++; 353 #endif 354 #endif 355 356 // and rest in ring buffer 357 int frames_to_store = resampled_frames - frames_to_copy; 358 if (frames_to_store){ 359 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); 360 if (status){ 361 printf("Error storing samples in PCM ring buffer!!!\n"); 362 } 363 #ifdef STORE_BEFORE_PLAYBACK 364 #ifdef STORE_SBC_TO_WAV_FILE 365 wav_writer_write_int16(frames_to_store * NUM_CHANNELS, &output_buffer[frames_to_copy * NUM_CHANNELS]); 366 frame_count++; 367 #endif 368 #endif 369 } 370 } 371 372 static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ 373 if (media_initialized) return 0; 374 375 btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); 376 377 #ifdef STORE_SBC_TO_WAV_FILE 378 wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); 379 #endif 380 381 #ifdef STORE_SBC_TO_SBC_FILE 382 sbc_file = fopen(sbc_filename, "wb"); 383 #endif 384 385 btstack_ring_buffer_init(&sbc_frame_ring_buffer, sbc_frame_storage, sizeof(sbc_frame_storage)); 386 btstack_ring_buffer_init(&decoded_audio_ring_buffer, decoded_audio_storage, sizeof(decoded_audio_storage)); 387 btstack_resample_init(&resample_instance, configuration.num_channels); 388 389 // setup audio playback 390 const btstack_audio_t * audio = btstack_audio_get_instance(); 391 if (audio){ 392 audio->init(NUM_CHANNELS, configuration.sampling_frequency, &playback_handler, NULL); 393 } 394 395 audio_stream_started = 0; 396 media_initialized = 1; 397 return 0; 398 } 399 400 static void media_processing_close(void){ 401 402 if (!media_initialized) return; 403 media_initialized = 0; 404 audio_stream_started = 0; 405 406 #ifdef STORE_SBC_TO_WAV_FILE 407 wav_writer_close(); 408 int total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; 409 410 printf("WAV Writer: Decoding done. Processed totaly %d frames:\n - %d good\n - %d bad\n", total_frames_nr, state.good_frames_nr, total_frames_nr - state.good_frames_nr); 411 printf("WAV Writer: Written %d frames to wav file: %s\n", frame_count, wav_filename); 412 #endif 413 414 #ifdef STORE_SBC_TO_SBC_FILE 415 fclose(sbc_file); 416 #endif 417 418 // stop audio playback 419 const btstack_audio_t * audio = btstack_audio_get_instance(); 420 if (audio){ 421 audio->close(); 422 } 423 } 424 425 /* @section Handle Media Data Packet 426 * 427 * @text Media data packets, in this case the audio data, are received through the handle_l2cap_media_data_packet callback. 428 * Currently, only the SBC media codec is supported. Hence, the media data consists of the media packet header and the SBC packet. 429 * 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) 430 * If the audio stream wasn't started already and there are enough SBC frames in the ring buffer, start playback. 431 */ 432 433 static int read_media_data_header(uint8_t * packet, int size, int * offset, avdtp_media_packet_header_t * media_header); 434 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header); 435 436 static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size){ 437 UNUSED(seid); 438 int pos = 0; 439 440 avdtp_media_packet_header_t media_header; 441 if (!read_media_data_header(packet, size, &pos, &media_header)) return; 442 443 avdtp_sbc_codec_header_t sbc_header; 444 if (!read_sbc_header(packet, size, &pos, &sbc_header)) return; 445 446 const btstack_audio_t * audio = btstack_audio_get_instance(); 447 448 // process data right away if there's no audio implementation active, e.g. on posix systems to store as .wav 449 if (!audio){ 450 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 451 return; 452 } 453 454 // store sbc frame size for buffer management 455 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 456 457 int status = btstack_ring_buffer_write(&sbc_frame_ring_buffer, packet+pos, size-pos); 458 if (status){ 459 printf("Error storing samples in SBC ring buffer!!!\n"); 460 } 461 462 // decide on audio sync drift based on number of sbc frames in queue 463 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&sbc_frame_ring_buffer) / sbc_frame_size; 464 uint32_t resampling_factor; 465 466 // nomimal factor (fixed-point 2^16) and compensation offset 467 uint32_t nomimal_factor = 0x0FF80; 468 uint32_t compensation = 0x00100; 469 470 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 471 resampling_factor = nomimal_factor - compensation; // stretch samples 472 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 473 resampling_factor = nomimal_factor; // nothing to do 474 } else { 475 resampling_factor = nomimal_factor + compensation; // compress samples 476 } 477 478 btstack_resample_set_factor(&resample_instance, resampling_factor); 479 480 // dump 481 printf("%6u %03u %05x\n", (int) btstack_run_loop_get_time_ms(), sbc_frames_in_buffer, resampling_factor); 482 // log_info("%03u %05x", sbc_frames_in_buffer, resampling_factor); 483 484 #ifdef STORE_SBC_TO_SBC_FILE 485 fwrite(packet+pos, size-pos, 1, sbc_file); 486 #endif 487 488 // start stream if enough frames buffered 489 if (!audio_stream_started && sbc_frames_in_buffer >= OPTIMAL_FRAMES_MIN){ 490 audio_stream_started = 1; 491 // setup audio playback 492 if (audio){ 493 audio->start_stream(); 494 } 495 } 496 } 497 498 static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_codec_header_t * sbc_header){ 499 int sbc_header_len = 12; // without crc 500 int pos = *offset; 501 502 if (size - pos < sbc_header_len){ 503 printf("Not enough data to read SBC header, expected %d, received %d\n", sbc_header_len, size-pos); 504 return 0; 505 } 506 507 sbc_header->fragmentation = get_bit16(packet[pos], 7); 508 sbc_header->starting_packet = get_bit16(packet[pos], 6); 509 sbc_header->last_packet = get_bit16(packet[pos], 5); 510 sbc_header->num_frames = packet[pos] & 0x0f; 511 pos++; 512 // 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); 513 *offset = pos; 514 return 1; 515 } 516 517 static int read_media_data_header(uint8_t *packet, int size, int *offset, avdtp_media_packet_header_t *media_header){ 518 int media_header_len = 12; // without crc 519 int pos = *offset; 520 521 if (size - pos < media_header_len){ 522 printf("Not enough data to read media packet header, expected %d, received %d\n", media_header_len, size-pos); 523 return 0; 524 } 525 526 media_header->version = packet[pos] & 0x03; 527 media_header->padding = get_bit16(packet[pos],2); 528 media_header->extension = get_bit16(packet[pos],3); 529 media_header->csrc_count = (packet[pos] >> 4) & 0x0F; 530 pos++; 531 532 media_header->marker = get_bit16(packet[pos],0); 533 media_header->payload_type = (packet[pos] >> 1) & 0x7F; 534 pos++; 535 536 media_header->sequence_number = big_endian_read_16(packet, pos); 537 pos+=2; 538 539 media_header->timestamp = big_endian_read_32(packet, pos); 540 pos+=4; 541 542 media_header->synchronization_source = big_endian_read_32(packet, pos); 543 pos+=4; 544 *offset = pos; 545 // TODO: read csrc list 546 547 // printf_hexdump( packet, pos ); 548 // printf("MEDIA HEADER: %u timestamp, version %u, padding %u, extension %u, csrc_count %u\n", 549 // media_header->timestamp, media_header->version, media_header->padding, media_header->extension, media_header->csrc_count); 550 // printf("MEDIA HEADER: marker %02x, payload_type %02x, sequence_number %u, synchronization_source %u\n", 551 // media_header->marker, media_header->payload_type, media_header->sequence_number, media_header->synchronization_source); 552 return 1; 553 } 554 555 static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ 556 printf("Received SBC configuration:\n"); 557 printf(" - num_channels: %d\n", configuration.num_channels); 558 printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); 559 printf(" - channel_mode: %d\n", configuration.channel_mode); 560 printf(" - block_length: %d\n", configuration.block_length); 561 printf(" - subbands: %d\n", configuration.subbands); 562 printf(" - allocation_method: %d\n", configuration.allocation_method); 563 printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); 564 printf("\n"); 565 } 566 567 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 568 UNUSED(channel); 569 UNUSED(size); 570 uint16_t local_cid; 571 uint8_t status = 0xFF; 572 bd_addr_t adress; 573 574 if (packet_type != HCI_EVENT_PACKET) return; 575 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 576 switch (packet[2]){ 577 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 578 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 579 if (avrcp_controller_cid != 0 && avrcp_controller_cid != local_cid) { 580 printf("AVRCP Controller: Connection failed, expected 0x%02X l2cap cid, received 0x%02X\n", avrcp_controller_cid, local_cid); 581 return; 582 } 583 584 status = avrcp_subevent_connection_established_get_status(packet); 585 if (status != ERROR_CODE_SUCCESS){ 586 printf("AVRCP Controller: Connection failed: status 0x%02x\n", status); 587 avrcp_controller_cid = 0; 588 return; 589 } 590 591 avrcp_controller_cid = local_cid; 592 avrcp_connected = 1; 593 avrcp_subevent_connection_established_get_bd_addr(packet, adress); 594 printf("AVRCP Controller: Channel successfully opened: %s, avrcp_controller_cid 0x%02x\n", bd_addr_to_str(adress), avrcp_controller_cid); 595 596 // automatically enable notifications 597 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 598 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 599 // avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED); 600 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 601 return; 602 } 603 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 604 printf("AVRCP Controller: Channel released: avrcp_controller_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 605 avrcp_controller_cid = 0; 606 avrcp_connected = 0; 607 return; 608 default: 609 break; 610 } 611 612 status = packet[5]; 613 if (!avrcp_controller_cid) return; 614 615 // ignore INTERIM status 616 if (status == AVRCP_CTYPE_RESPONSE_INTERIM){ 617 switch (packet[2]){ 618 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED:{ 619 uint32_t playback_position_ms = avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet); 620 if (playback_position_ms == AVRCP_NO_TRACK_SELECTED_PLAYBACK_POSITION_CHANGED){ 621 printf("AVRCP Controller: notification, playback position changed, no track is selected\n"); 622 } 623 break; 624 } 625 default: 626 // printf(" INTERIM response \n"); 627 break; 628 } 629 return; 630 } 631 632 printf("AVRCP Controller: command status: %s, ", avrcp_ctype2str(status)); 633 memset(value, 0, sizeof(value)); 634 635 switch (packet[2]){ 636 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED: 637 printf("notification, playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet)); 638 break; 639 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 640 printf("notification, playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); 641 return; 642 case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: 643 printf("notification, playing content changed\n"); 644 return; 645 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 646 printf("notification track changed\n"); 647 return; 648 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 649 printf("notification absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 650 return; 651 case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: 652 printf("notification changed\n"); 653 return; 654 case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ 655 uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); 656 uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); 657 printf("%s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 658 break; 659 } 660 case AVRCP_SUBEVENT_NOW_PLAYING_TRACK_INFO: 661 printf(" Track: %d\n", avrcp_subevent_now_playing_track_info_get_track(packet)); 662 break; 663 664 case AVRCP_SUBEVENT_NOW_PLAYING_TOTAL_TRACKS_INFO: 665 printf(" Total Tracks: %d\n", avrcp_subevent_now_playing_total_tracks_info_get_total_tracks(packet)); 666 break; 667 668 case AVRCP_SUBEVENT_NOW_PLAYING_TITLE_INFO: 669 if (avrcp_subevent_now_playing_title_info_get_value_len(packet) > 0){ 670 memcpy(value, avrcp_subevent_now_playing_title_info_get_value(packet), avrcp_subevent_now_playing_title_info_get_value_len(packet)); 671 printf(" Title: %s\n", value); 672 } 673 break; 674 675 case AVRCP_SUBEVENT_NOW_PLAYING_ARTIST_INFO: 676 if (avrcp_subevent_now_playing_artist_info_get_value_len(packet) > 0){ 677 memcpy(value, avrcp_subevent_now_playing_artist_info_get_value(packet), avrcp_subevent_now_playing_artist_info_get_value_len(packet)); 678 printf(" Artist: %s\n", value); 679 } 680 break; 681 682 case AVRCP_SUBEVENT_NOW_PLAYING_ALBUM_INFO: 683 if (avrcp_subevent_now_playing_album_info_get_value_len(packet) > 0){ 684 memcpy(value, avrcp_subevent_now_playing_album_info_get_value(packet), avrcp_subevent_now_playing_album_info_get_value_len(packet)); 685 printf(" Album: %s\n", value); 686 } 687 break; 688 689 case AVRCP_SUBEVENT_NOW_PLAYING_GENRE_INFO: 690 if (avrcp_subevent_now_playing_genre_info_get_value_len(packet) > 0){ 691 memcpy(value, avrcp_subevent_now_playing_genre_info_get_value(packet), avrcp_subevent_now_playing_genre_info_get_value_len(packet)); 692 printf(" Genre: %s\n", value); 693 } 694 break; 695 696 case AVRCP_SUBEVENT_PLAY_STATUS: 697 printf("song length: %"PRIu32" ms, song position: %"PRIu32" ms, play status: %s\n", 698 avrcp_subevent_play_status_get_song_length(packet), 699 avrcp_subevent_play_status_get_song_position(packet), 700 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 701 break; 702 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 703 printf("operation done %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 704 break; 705 case AVRCP_SUBEVENT_OPERATION_START: 706 printf("operation start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 707 break; 708 case AVRCP_SUBEVENT_PLAYER_APPLICATION_VALUE_RESPONSE: 709 // response to set shuffle and repeat mode 710 printf("\n"); 711 break; 712 default: 713 printf("AVRCP Controller: event 0x%02x is not parsed\n", packet[2]); 714 break; 715 } 716 } 717 718 719 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 720 UNUSED(channel); 721 UNUSED(size); 722 bd_addr_t event_addr; 723 uint16_t local_cid; 724 uint8_t status = ERROR_CODE_SUCCESS; 725 726 if (packet_type != HCI_EVENT_PACKET) return; 727 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 728 729 switch (packet[2]){ 730 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 731 printf("AVRCP Target: new volume %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 732 break; 733 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: 734 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 735 if (avrcp_target_cid != 0 && avrcp_target_cid != local_cid) { 736 printf("AVRCP Target: Connection failed, expected 0x%02X l2cap cid, received 0x%02X\n", avrcp_target_cid, local_cid); 737 return; 738 } 739 740 status = avrcp_subevent_connection_established_get_status(packet); 741 if (status != ERROR_CODE_SUCCESS){ 742 printf("AVRCP Target: Connection failed: status 0x%02x\n", status); 743 avrcp_target_cid = 0; 744 return; 745 } 746 avrcp_target_cid = local_cid; 747 printf("AVRCP Target: Connected to %s, avrcp_cid 0x%02x\n", bd_addr_to_str(event_addr), local_cid); 748 break; 749 case AVRCP_SUBEVENT_EVENT_IDS_QUERY: 750 printf("AVRCP Target: get supported events\n"); 751 status = avrcp_target_supported_events(avrcp_target_cid, events_num, events, sizeof(events)); 752 break; 753 case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: 754 status = avrcp_target_supported_companies(avrcp_target_cid, companies_num, companies, sizeof(companies)); 755 break; 756 // case AVRCP_SUBEVENT_PLAY_STATUS_QUERY: 757 // status = avrcp_target_play_status(avrcp_target_cid, play_info.song_length_ms, play_info.song_position_ms, play_info.status); 758 // break; 759 // case AVRCP_SUBEVENT_NOW_PLAYING_INFO_QUERY: 760 // status = avrcp_target_now_playing_info(avrcp_target_cid); 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_VOLUME_UP: 776 printf("AVRCP Target: received operation VOULME_UP\n"); 777 break; 778 case AVRCP_OPERATION_ID_VOLUME_DOWN: 779 printf("AVRCP Target: received operation VOLUME_DOWN\n"); 780 break; 781 case AVRCP_OPERATION_ID_REWIND: 782 printf("AVRCP Target: received operation REWIND\n"); 783 break; 784 case AVRCP_OPERATION_ID_FAST_FORWARD: 785 printf("AVRCP Target: received operation FAST_FORWARD\n"); 786 break; 787 case AVRCP_OPERATION_ID_FORWARD: 788 printf("AVRCP Target: received operation FORWARD\n"); 789 break; 790 case AVRCP_OPERATION_ID_BACKWARD: 791 printf("AVRCP Target: received operation BACKWARD\n"); 792 break; 793 case AVRCP_OPERATION_ID_SKIP: 794 printf("AVRCP Target: received operation SKIP\n"); 795 break; 796 case AVRCP_OPERATION_ID_MUTE: 797 printf("AVRCP Target: received operation MUTE\n"); 798 break; 799 case AVRCP_OPERATION_ID_CHANNEL_UP: 800 printf("AVRCP Target: received operation CHANNEL_UP\n"); 801 break; 802 case AVRCP_OPERATION_ID_CHANNEL_DOWN: 803 printf("AVRCP Target: received operation CHANNEL_DOWN\n"); 804 break; 805 case AVRCP_OPERATION_ID_SELECT: 806 printf("AVRCP Target: received operation SELECT\n"); 807 break; 808 case AVRCP_OPERATION_ID_UP: 809 printf("AVRCP Target: received operation UP\n"); 810 break; 811 case AVRCP_OPERATION_ID_DOWN: 812 printf("AVRCP Target: received operation DOWN\n"); 813 break; 814 case AVRCP_OPERATION_ID_LEFT: 815 printf("AVRCP Target: received operation LEFT\n"); 816 break; 817 case AVRCP_OPERATION_ID_RIGHT: 818 printf("AVRCP Target: received operation RIGTH\n"); 819 break; 820 case AVRCP_OPERATION_ID_ROOT_MENU: 821 printf("AVRCP Target: received operation ROOT_MENU\n"); 822 break; 823 824 default: 825 return; 826 } 827 break; 828 } 829 830 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 831 printf("AVRCP Target: Disconnected, avrcp_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 832 return; 833 default: 834 printf("AVRCP Target: event 0x%02x is not parsed\n", packet[2]); 835 break; 836 } 837 } 838 839 840 static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 841 UNUSED(channel); 842 UNUSED(size); 843 if (packet_type != HCI_EVENT_PACKET) return; 844 if (hci_event_packet_get_type(packet) == HCI_EVENT_PIN_CODE_REQUEST) { 845 bd_addr_t address; 846 printf("Pin code request - using '0000'\n"); 847 hci_event_pin_code_request_get_bd_addr(packet, address); 848 gap_pin_code_response(address, "0000"); 849 } 850 } 851 852 static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 853 UNUSED(channel); 854 UNUSED(size); 855 uint16_t cid; 856 bd_addr_t address; 857 uint8_t status; 858 859 if (packet_type != HCI_EVENT_PACKET) return; 860 if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; 861 862 switch (packet[2]){ 863 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 864 printf("A2DP Sink Demo: received non SBC codec. not implemented.\n"); 865 break; 866 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 867 printf("A2DP Sink Demo: received SBC codec configuration.\n"); 868 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 869 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 870 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 871 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 872 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 873 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 874 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 875 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 876 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 877 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 878 dump_sbc_configuration(sbc_configuration); 879 880 if (sbc_configuration.reconfigure){ 881 media_processing_close(); 882 } 883 // prepare media processing 884 media_processing_init(sbc_configuration); 885 break; 886 } 887 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 888 a2dp_subevent_stream_established_get_bd_addr(packet, address); 889 status = a2dp_subevent_stream_established_get_status(packet); 890 cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 891 printf("A2DP_SUBEVENT_STREAM_ESTABLISHED %d, %d \n", cid, a2dp_cid); 892 if (!a2dp_cid){ 893 // incoming connection 894 a2dp_cid = cid; 895 } else if (cid != a2dp_cid) { 896 break; 897 } 898 if (status){ 899 a2dp_sink_connected = 0; 900 printf("A2DP Sink Demo: streaming connection failed, status 0x%02x\n", status); 901 break; 902 } 903 printf("A2DP Sink Demo: streaming connection is established, address %s, a2dp cid 0x%02X, local_seid %d\n", bd_addr_to_str(address), a2dp_cid, local_seid); 904 905 memcpy(device_addr, address, 6); 906 907 local_seid = a2dp_subevent_stream_established_get_local_seid(packet); 908 a2dp_sink_connected = 1; 909 break; 910 911 case A2DP_SUBEVENT_STREAM_STARTED: 912 cid = a2dp_subevent_stream_started_get_a2dp_cid(packet); 913 if (cid != a2dp_cid) break; 914 local_seid = a2dp_subevent_stream_started_get_local_seid(packet); 915 printf("A2DP Sink Demo: stream started, a2dp cid 0x%02X, local_seid %d\n", a2dp_cid, local_seid); 916 // started 917 media_processing_init(sbc_configuration); 918 break; 919 920 case A2DP_SUBEVENT_STREAM_SUSPENDED: 921 cid = a2dp_subevent_stream_suspended_get_a2dp_cid(packet); 922 if (cid != a2dp_cid) break; 923 local_seid = a2dp_subevent_stream_suspended_get_local_seid(packet); 924 printf("A2DP Sink Demo: stream paused, a2dp cid 0x%02X, local_seid %d\n", a2dp_cid, local_seid); 925 media_processing_close(); 926 break; 927 928 case A2DP_SUBEVENT_STREAM_RELEASED: 929 local_seid = a2dp_subevent_stream_released_get_local_seid(packet); 930 printf("A2DP Sink Demo: stream released, a2dp cid 0x%02X, local_seid %d\n", a2dp_cid, local_seid); 931 media_processing_close(); 932 break; 933 case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: 934 cid = a2dp_subevent_signaling_connection_released_get_a2dp_cid(packet); 935 a2dp_sink_connected = 0; 936 printf("A2DP Sink Demo: signaling connection released\n"); 937 media_processing_close(); 938 break; 939 default: 940 printf("A2DP Sink Demo: not parsed 0x%02x\n", packet[2]); 941 break; 942 } 943 } 944 945 #ifdef HAVE_BTSTACK_STDIN 946 static void show_usage(void){ 947 bd_addr_t iut_address; 948 gap_local_bd_addr(iut_address); 949 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 950 printf("b - AVDTP Sink create connection to addr %s\n", bd_addr_to_str(device_addr)); 951 printf("B - AVDTP Sink disconnect\n"); 952 printf("c - AVRCP Controller create connection to addr %s\n", bd_addr_to_str(device_addr)); 953 printf("C - AVRCP Controller disconnect\n"); 954 printf("d - AVRCP Target create connection to addr %s\n", bd_addr_to_str(device_addr)); 955 printf("D - AVRCP Target disconnect\n"); 956 957 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 958 printf("O - get play status\n"); 959 printf("j - get now playing info\n"); 960 printf("k - play\n"); 961 printf("K - stop\n"); 962 printf("L - pause\n"); 963 printf("u - start fast forward\n"); 964 printf("U - stop fast forward\n"); 965 printf("n - start rewind\n"); 966 printf("N - stop rewind\n"); 967 printf("i - forward\n"); 968 printf("I - backward\n"); 969 printf("t - volume up to 70 percent\n"); 970 printf("T - volume down to 10 percent\n"); 971 printf("p - absolute volume of 50 percent\n"); 972 printf("M - mute\n"); 973 printf("r - skip\n"); 974 printf("q - query repeat and shuffle mode\n"); 975 printf("v - repeat single track\n"); 976 printf("x - repeat all tracks\n"); 977 printf("X - disable repeat mode\n"); 978 printf("z - shuffle all tracks\n"); 979 printf("Z - disable shuffle mode\n"); 980 981 printf("a/A - register/deregister TRACK_CHANGED\n"); 982 printf("R/P - register/deregister PLAYBACK_POS_CHANGED\n"); 983 984 printf("---\n"); 985 } 986 #endif 987 988 #ifdef HAVE_BTSTACK_STDIN 989 static void stdin_process(char cmd){ 990 uint8_t status = ERROR_CODE_SUCCESS; 991 992 switch (cmd){ 993 case 'b': 994 status = a2dp_sink_establish_stream(device_addr, local_seid, &a2dp_cid); 995 printf(" - Create AVDTP connection to addr %s, and local seid %d, expected cid 0x%02x.\n", bd_addr_to_str(device_addr), local_seid, a2dp_cid); 996 break; 997 case 'B': 998 printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 999 status = avdtp_sink_disconnect(a2dp_cid); 1000 break; 1001 case 'c': 1002 printf(" - Create AVRCP Controller connection to addr %s.\n", bd_addr_to_str(device_addr)); 1003 status = avrcp_controller_connect(device_addr, &avrcp_controller_cid); 1004 break; 1005 case 'C': 1006 printf(" - AVRCP Controller disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 1007 status = avrcp_controller_disconnect(avrcp_controller_cid); 1008 break; 1009 case 'd': 1010 printf(" - Create AVRCP Target connection to addr %s.\n", bd_addr_to_str(device_addr)); 1011 status = avrcp_target_connect(device_addr, &avrcp_target_cid); 1012 break; 1013 case 'D': 1014 printf(" - AVRCP Target disconnect from addr %s.\n", bd_addr_to_str(device_addr)); 1015 status = avrcp_target_disconnect(avrcp_target_cid); 1016 break; 1017 1018 case '\n': 1019 case '\r': 1020 break; 1021 case 'O': 1022 printf(" - get play status, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1023 status = avrcp_controller_get_play_status(avrcp_controller_cid); 1024 break; 1025 case 'j': 1026 printf(" - get now playing info, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1027 status = avrcp_controller_get_now_playing_info(avrcp_controller_cid); 1028 break; 1029 case 'k': 1030 printf(" - play, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1031 status = avrcp_controller_play(avrcp_controller_cid); 1032 break; 1033 case 'K': 1034 printf(" - stop, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1035 status = avrcp_controller_stop(avrcp_controller_cid); 1036 break; 1037 case 'L': 1038 printf(" - pause, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1039 status = avrcp_controller_pause(avrcp_controller_cid); 1040 break; 1041 case 'u': 1042 printf(" - start fast forward, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1043 status = avrcp_controller_press_and_hold_fast_forward(avrcp_controller_cid); 1044 break; 1045 case 'U': 1046 printf(" - stop fast forward, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1047 status = avrcp_controller_release_press_and_hold_cmd(avrcp_controller_cid); 1048 break; 1049 case 'n': 1050 printf(" - start rewind, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1051 status = avrcp_controller_press_and_hold_rewind(avrcp_controller_cid); 1052 break; 1053 case 'N': 1054 printf(" - stop rewind, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1055 status = avrcp_controller_release_press_and_hold_cmd(avrcp_controller_cid); 1056 break; 1057 case 'i': 1058 printf(" - forward, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1059 status = avrcp_controller_forward(avrcp_controller_cid); 1060 break; 1061 case 'I': 1062 printf(" - backward, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1063 status = avrcp_controller_backward(avrcp_controller_cid); 1064 break; 1065 case 't': 1066 printf(" - volume up to 70 percent, avrcp target cid 0x%02x\n", avrcp_controller_cid); 1067 // status = avrcp_controller_volume_up(avrcp_controller_cid); 1068 status = avrcp_target_volume_changed(avrcp_target_cid, 70); 1069 break; 1070 case 'T': 1071 printf(" - volume down to 10 percent, avrcp target cid 0x%02x\n", avrcp_controller_cid); 1072 // status = avrcp_controller_volume_down(avrcp_controller_cid); 1073 status = avrcp_target_volume_changed(avrcp_target_cid, 10); 1074 break; 1075 case 'p': 1076 printf(" - absolute volume of 50 percent, avrcp avrcp_target_cid cid 0x%02x\n", avrcp_target_cid); 1077 status = avrcp_target_volume_changed(avrcp_target_cid, 10); 1078 break; 1079 1080 case 'M': 1081 printf(" - mute, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1082 status = avrcp_controller_mute(avrcp_controller_cid); 1083 break; 1084 case 'r': 1085 printf(" - skip, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1086 status = avrcp_controller_skip(avrcp_controller_cid); 1087 break; 1088 case 'q': 1089 printf(" - query repeat and shuffle mode, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1090 status = avrcp_controller_query_shuffle_and_repeat_modes(avrcp_controller_cid); 1091 break; 1092 case 'v': 1093 printf(" - repeat single track, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1094 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 1095 break; 1096 case 'x': 1097 printf(" - repeat all tracks, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1098 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 1099 break; 1100 case 'X': 1101 printf(" - disable repeat mode, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1102 status = avrcp_controller_set_repeat_mode(avrcp_controller_cid, AVRCP_REPEAT_MODE_OFF); 1103 break; 1104 case 'z': 1105 printf(" - shuffle all tracks, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1106 status = avrcp_controller_set_shuffle_mode(avrcp_controller_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 1107 break; 1108 case 'Z': 1109 printf(" - disable shuffle mode, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1110 status = avrcp_controller_set_shuffle_mode(avrcp_controller_cid, AVRCP_SHUFFLE_MODE_OFF); 1111 break; 1112 case 'a': 1113 printf("AVRCP: enable notification TRACK_CHANGED, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1114 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1115 break; 1116 case 'A': 1117 printf("AVRCP: disable notification TRACK_CHANGED, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1118 avrcp_controller_disable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED); 1119 break; 1120 case 'R': 1121 printf("AVRCP: enable notification PLAYBACK_POS_CHANGED, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1122 avrcp_controller_enable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1123 break; 1124 case 'P': 1125 printf("AVRCP: disable notification PLAYBACK_POS_CHANGED, avrcp controller cid 0x%02x\n", avrcp_controller_cid); 1126 avrcp_controller_disable_notification(avrcp_controller_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED); 1127 break; 1128 1129 default: 1130 show_usage(); 1131 return; 1132 } 1133 if (status != ERROR_CODE_SUCCESS){ 1134 printf("Could not perform command, status 0x%2x\n", status); 1135 } 1136 } 1137 #endif 1138 1139 int btstack_main(int argc, const char * argv[]); 1140 int btstack_main(int argc, const char * argv[]){ 1141 UNUSED(argc); 1142 (void)argv; 1143 1144 a2dp_and_avrcp_setup(); 1145 1146 #ifdef HAVE_BTSTACK_STDIN 1147 // parse human readable Bluetooth address 1148 sscanf_bd_addr(device_addr_string, device_addr); 1149 btstack_stdin_setup(stdin_process); 1150 #endif 1151 1152 // turn on! 1153 printf("Starting BTstack ...\n"); 1154 hci_power_control(HCI_POWER_ON); 1155 return 0; 1156 } 1157