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 39 #include <stdint.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 44 #include "btstack_config.h" 45 #include "btstack_debug.h" 46 #include "btstack_event.h" 47 #include "btstack_memory.h" 48 #include "btstack_run_loop.h" 49 #include "gap.h" 50 #include "hci.h" 51 #include "hci_cmd.h" 52 #include "hci_dump.h" 53 #include "l2cap.h" 54 #include "classic/avdtp_sink.h" 55 #include "classic/a2dp_sink.h" 56 #include "classic/btstack_sbc.h" 57 #include "classic/avdtp_util.h" 58 #include "classic/avrcp.h" 59 60 #define AVRCP_BROWSING_ENABLED 0 61 62 #ifdef HAVE_BTSTACK_STDIN 63 #include "btstack_stdin.h" 64 #endif 65 66 #ifdef HAVE_AUDIO_DMA 67 #include "btstack_ring_buffer.h" 68 #include "hal_audio_dma.h" 69 #endif 70 71 #ifdef HAVE_PORTAUDIO 72 #include "btstack_ring_buffer.h" 73 #include <portaudio.h> 74 #endif 75 76 #ifdef HAVE_POSIX_FILE_IO 77 #include "wav_util.h" 78 #define STORE_SBC_TO_SBC_FILE 79 #define STORE_SBC_TO_WAV_FILE 80 #endif 81 82 #if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) || defined(HAVE_AUDIO_DMA) 83 #define DECODE_SBC 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 PortAudio 91 #ifdef DECODE_SBC 92 static btstack_sbc_decoder_state_t state; 93 static btstack_sbc_mode_t mode = SBC_MODE_STANDARD; 94 #endif 95 96 #if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) 97 #define PREBUFFER_MS 200 98 static int audio_stream_started = 0; 99 static int audio_stream_paused = 0; 100 static btstack_ring_buffer_t ring_buffer; 101 #endif 102 103 #ifdef HAVE_AUDIO_DMA 104 // below 30: add samples, 30-40: fine, above 40: drop samples 105 #define OPTIMAL_FRAMES_MIN 30 106 #define OPTIMAL_FRAMES_MAX 40 107 #define ADDITIONAL_FRAMES 10 108 #define DMA_AUDIO_FRAMES 128 109 #define DMA_MAX_FILL_FRAMES 1 110 #define NUM_AUDIO_BUFFERS 2 111 112 static uint16_t audio_samples[(DMA_AUDIO_FRAMES + DMA_MAX_FILL_FRAMES)*2*NUM_AUDIO_BUFFERS]; 113 static uint16_t audio_samples_len[NUM_AUDIO_BUFFERS]; 114 static uint8_t ring_buffer_storage[(OPTIMAL_FRAMES_MAX + ADDITIONAL_FRAMES) * MAX_SBC_FRAME_SIZE]; 115 static const uint16_t silent_buffer[DMA_AUDIO_FRAMES*2]; 116 static volatile int playback_buffer; 117 static int write_buffer; 118 static uint8_t sbc_frame_size; 119 static int sbc_samples_fix; 120 #endif 121 122 // PortAdudio - live playback 123 #ifdef HAVE_PORTAUDIO 124 #define PA_SAMPLE_TYPE paInt16 125 #define SAMPLE_RATE 48000 126 #define FRAMES_PER_BUFFER 128 127 #define PREBUFFER_BYTES (PREBUFFER_MS*SAMPLE_RATE/1000*BYTES_PER_FRAME) 128 static PaStream * stream; 129 static uint8_t ring_buffer_storage[2*PREBUFFER_BYTES]; 130 static btstack_ring_buffer_t ring_buffer; 131 static int total_num_samples = 0; 132 #endif 133 134 // WAV File 135 #ifdef STORE_SBC_TO_WAV_FILE 136 static int frame_count = 0; 137 static char * wav_filename = "avdtp_sink.wav"; 138 #endif 139 140 #ifdef STORE_SBC_TO_SBC_FILE 141 static FILE * sbc_file; 142 static char * sbc_filename = "avdtp_sink.sbc"; 143 #endif 144 145 typedef struct { 146 // bitmaps 147 uint8_t sampling_frequency_bitmap; 148 uint8_t channel_mode_bitmap; 149 uint8_t block_length_bitmap; 150 uint8_t subbands_bitmap; 151 uint8_t allocation_method_bitmap; 152 uint8_t min_bitpool_value; 153 uint8_t max_bitpool_value; 154 } adtvp_media_codec_information_sbc_t; 155 156 typedef struct { 157 int reconfigure; 158 int num_channels; 159 int sampling_frequency; 160 int channel_mode; 161 int block_length; 162 int subbands; 163 int allocation_method; 164 int min_bitpool_value; 165 int max_bitpool_value; 166 int frames_per_buffer; 167 } avdtp_media_codec_configuration_sbc_t; 168 169 #ifdef HAVE_BTSTACK_STDIN 170 // mac 2011: static bd_addr_t remote = {0x04, 0x0C, 0xCE, 0xE4, 0x85, 0xD3}; 171 // pts: static bd_addr_t remote = {0x00, 0x1B, 0xDC, 0x08, 0x0A, 0xA5}; 172 // mac 2013: static const char * device_addr_string = "00:1B:DC:08:0A:A5"; 173 // iPhone 5S: 174 static const char * device_addr_string = "54:E4:3A:26:A2:39"; 175 #endif 176 177 // bt dongle: -u 02-02 static bd_addr_t remote = {0x00, 0x02, 0x72, 0xDC, 0x31, 0xC1}; 178 179 static uint16_t a2dp_cid = 0; 180 static uint8_t sdp_avdtp_sink_service_buffer[150]; 181 #ifdef HAVE_BTSTACK_STDIN 182 static avdtp_sep_t sep; 183 #endif 184 185 static avdtp_media_codec_configuration_sbc_t sbc_configuration; 186 187 static uint8_t local_seid = 0; 188 189 typedef enum { 190 AVDTP_APPLICATION_IDLE, 191 AVDTP_APPLICATION_CONNECTED, 192 AVDTP_APPLICATION_STREAMING 193 } avdtp_application_state_t; 194 195 avdtp_application_state_t app_state = AVDTP_APPLICATION_IDLE; 196 197 static btstack_packet_callback_registration_t hci_event_callback_registration; 198 199 static int media_initialized = 0; 200 201 #ifdef HAVE_BTSTACK_STDIN 202 static bd_addr_t device_addr; 203 #endif 204 205 static uint16_t avrcp_cid = 0; 206 static uint8_t sdp_avrcp_controller_service_buffer[200]; 207 208 #ifdef HAVE_PORTAUDIO 209 static int patestCallback( const void *inputBuffer, void *outputBuffer, 210 unsigned long framesPerBuffer, 211 const PaStreamCallbackTimeInfo* timeInfo, 212 PaStreamCallbackFlags statusFlags, 213 void *userData ) { 214 215 /** patestCallback is called from different thread, don't use hci_dump / log_info here without additional checks */ 216 217 (void) timeInfo; /* Prevent unused variable warnings. */ 218 (void) statusFlags; 219 (void) inputBuffer; 220 (void) userData; 221 222 int bytes_to_copy = framesPerBuffer * BYTES_PER_FRAME; 223 224 // fill with silence while paused 225 if (audio_stream_paused){ 226 227 if (btstack_ring_buffer_bytes_available(&ring_buffer) < PREBUFFER_BYTES){ 228 // printf("PA: silence\n"); 229 memset(outputBuffer, 0, bytes_to_copy); 230 return 0; 231 } else { 232 // resume playback 233 audio_stream_paused = 0; 234 } 235 } 236 237 // get data from ringbuffer 238 uint32_t bytes_read = 0; 239 btstack_ring_buffer_read(&ring_buffer, outputBuffer, bytes_to_copy, &bytes_read); 240 bytes_to_copy -= bytes_read; 241 242 // fill with 0 if not enough 243 if (bytes_to_copy){ 244 memset(outputBuffer + bytes_read, 0, bytes_to_copy); 245 audio_stream_paused = 1; 246 } 247 return 0; 248 } 249 #endif 250 251 #ifdef HAVE_AUDIO_DMA 252 static int next_buffer(int current){ 253 if (current == NUM_AUDIO_BUFFERS-1) return 0; 254 return current + 1; 255 } 256 static uint8_t * start_of_buffer(int num){ 257 return (uint8_t *) &audio_samples[num * DMA_AUDIO_FRAMES * 2]; 258 } 259 void hal_audio_dma_done(void){ 260 if (audio_stream_paused){ 261 hal_audio_dma_play((const uint8_t *) silent_buffer, DMA_AUDIO_FRAMES*4); 262 return; 263 } 264 // next buffer 265 int next_playback_buffer = next_buffer(playback_buffer); 266 uint8_t * playback_data; 267 if (next_playback_buffer == write_buffer){ 268 269 // TODO: stop codec while playing silence when getting 'stream paused' 270 271 // start playing silence 272 audio_stream_paused = 1; 273 hal_audio_dma_play((const uint8_t *) silent_buffer, DMA_AUDIO_FRAMES*4); 274 printf("%6u - paused - bytes in buffer %u\n", (int) btstack_run_loop_get_time_ms(), btstack_ring_buffer_bytes_available(&ring_buffer)); 275 return; 276 } 277 playback_buffer = next_playback_buffer; 278 playback_data = start_of_buffer(playback_buffer); 279 hal_audio_dma_play(playback_data, audio_samples_len[playback_buffer]); 280 // btstack_run_loop_embedded_trigger(); 281 } 282 #endif 283 284 #if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) 285 286 static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){ 287 UNUSED(sample_rate); 288 UNUSED(context); 289 290 #ifdef STORE_SBC_TO_WAV_FILE 291 wav_writer_write_int16(num_samples*num_channels, data); 292 frame_count++; 293 #endif 294 295 #ifdef HAVE_PORTAUDIO 296 total_num_samples+=num_samples*num_channels; 297 298 // store pcm samples in ringbuffer 299 btstack_ring_buffer_write(&ring_buffer, (uint8_t *)data, num_samples*num_channels*2); 300 301 if (!audio_stream_started){ 302 audio_stream_paused = 1; 303 /* -- start stream -- */ 304 PaError err = Pa_StartStream(stream); 305 if (err != paNoError){ 306 printf("Error starting the stream: \"%s\"\n", Pa_GetErrorText(err)); 307 return; 308 } 309 audio_stream_started = 1; 310 } 311 #endif 312 313 } 314 #endif 315 316 317 #ifdef HAVE_AUDIO_DMA 318 319 static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){ 320 UNUSED(sample_rate); 321 UNUSED(context); 322 total_num_samples+=num_samples*num_channels; 323 324 // store in ring buffer 325 uint8_t * write_data = start_of_buffer(write_buffer); 326 uint16_t len = num_samples*num_channels*2; 327 memcpy(write_data, data, len); 328 audio_samples_len[write_buffer] = len; 329 330 // add/drop audio frame to fix drift 331 if (sbc_samples_fix > 0){ 332 memcpy(write_data + len, write_data + len - 4, 4); 333 audio_samples_len[write_buffer] += 4; 334 } 335 if (sbc_samples_fix < 0){ 336 audio_samples_len[write_buffer] -= 4; 337 } 338 339 write_buffer = next_buffer(write_buffer); 340 } 341 342 static void hal_audio_dma_process(btstack_data_source_t * ds, btstack_data_source_callback_type_t callback_type){ 343 UNUSED(ds); 344 UNUSED(callback_type); 345 346 if (!media_initialized) return; 347 348 int trigger_resume = 0; 349 if (audio_stream_paused) { 350 if (sbc_frame_size && btstack_ring_buffer_bytes_available(&ring_buffer) >= OPTIMAL_FRAMES_MIN * sbc_frame_size){ 351 trigger_resume = 1; 352 // reset buffers 353 playback_buffer = NUM_AUDIO_BUFFERS - 1; 354 write_buffer = 0; 355 } else { 356 return; 357 } 358 } 359 360 while (playback_buffer != write_buffer && btstack_ring_buffer_bytes_available(&ring_buffer) >= sbc_frame_size ){ 361 uint8_t frame[MAX_SBC_FRAME_SIZE]; 362 uint32_t bytes_read = 0; 363 btstack_ring_buffer_read(&ring_buffer, frame, sbc_frame_size, &bytes_read); 364 btstack_sbc_decoder_process_data(&state, 0, frame, sbc_frame_size); 365 } 366 367 if (trigger_resume){ 368 printf("%6u - resume\n", (int) btstack_run_loop_get_time_ms()); 369 audio_stream_paused = 0; 370 } 371 } 372 373 #endif 374 375 static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ 376 377 if (media_initialized) return 0; 378 379 #ifdef DECODE_SBC 380 btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); 381 #endif 382 383 #ifdef STORE_SBC_TO_WAV_FILE 384 wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); 385 #endif 386 387 #ifdef STORE_SBC_TO_SBC_FILE 388 sbc_file = fopen(sbc_filename, "wb"); 389 #endif 390 391 #ifdef HAVE_PORTAUDIO 392 // int frames_per_buffer = configuration.frames_per_buffer; 393 PaError err; 394 PaStreamParameters outputParameters; 395 const PaDeviceInfo *deviceInfo; 396 397 /* -- initialize PortAudio -- */ 398 err = Pa_Initialize(); 399 if (err != paNoError){ 400 printf("Error initializing portaudio: \"%s\"\n", Pa_GetErrorText(err)); 401 return err; 402 } 403 /* -- setup input and output -- */ 404 outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */ 405 outputParameters.channelCount = configuration.num_channels; 406 outputParameters.sampleFormat = PA_SAMPLE_TYPE; 407 outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultHighOutputLatency; 408 outputParameters.hostApiSpecificStreamInfo = NULL; 409 deviceInfo = Pa_GetDeviceInfo( outputParameters.device ); 410 printf("PortAudio: Output device: %s\n", deviceInfo->name); 411 log_info("PortAudio: Output device: %s", deviceInfo->name); 412 /* -- setup stream -- */ 413 err = Pa_OpenStream( 414 &stream, 415 NULL, /* &inputParameters */ 416 &outputParameters, 417 configuration.sampling_frequency, 418 0, 419 paClipOff, /* we won't output out of range samples so don't bother clipping them */ 420 patestCallback, /* use callback */ 421 NULL ); 422 423 if (err != paNoError){ 424 printf("Error initializing portaudio: \"%s\"\n", Pa_GetErrorText(err)); 425 return err; 426 } 427 log_info("PortAudio: stream opened"); 428 printf("PortAudio: stream opened\n"); 429 #endif 430 #ifdef HAVE_AUDIO_DMA 431 audio_stream_paused = 1; 432 hal_audio_dma_init(configuration.sampling_frequency); 433 hal_audio_dma_set_audio_played(&hal_audio_dma_done); 434 // start playing silence 435 hal_audio_dma_done(); 436 #endif 437 438 #if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) 439 memset(ring_buffer_storage, 0, sizeof(ring_buffer_storage)); 440 btstack_ring_buffer_init(&ring_buffer, ring_buffer_storage, sizeof(ring_buffer_storage)); 441 audio_stream_started = 0; 442 #endif 443 media_initialized = 1; 444 return 0; 445 } 446 447 static void media_processing_close(void){ 448 if (!media_initialized) return; 449 media_initialized = 0; 450 451 #ifdef STORE_SBC_TO_WAV_FILE 452 printf("WAV Writer: close file.\n"); 453 wav_writer_close(); 454 int total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; 455 456 printf("WAV Writer: Decoding done. Processed totaly %d frames:\n - %d good\n - %d bad\n - %d zero frames\n", total_frames_nr, state.good_frames_nr, state.bad_frames_nr, state.zero_frames_nr); 457 printf("WAV Writer: Written %d frames to wav file: %s\n", frame_count, wav_filename); 458 #endif 459 460 #ifdef STORE_SBC_TO_SBC_FILE 461 fclose(sbc_file); 462 #endif 463 464 #if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) 465 audio_stream_started = 0; 466 #endif 467 468 #ifdef HAVE_PORTAUDIO 469 printf("PortAudio: Steram closed\n"); 470 log_info("PortAudio: Stream closed"); 471 472 PaError err = Pa_StopStream(stream); 473 if (err != paNoError){ 474 printf("Error stopping the stream: \"%s\"\n", Pa_GetErrorText(err)); 475 log_error("Error stopping the stream: \"%s\"", Pa_GetErrorText(err)); 476 return; 477 } 478 err = Pa_CloseStream(stream); 479 if (err != paNoError){ 480 printf("Error closing the stream: \"%s\"\n", Pa_GetErrorText(err)); 481 log_error("Error closing the stream: \"%s\"", Pa_GetErrorText(err)); 482 return; 483 } 484 err = Pa_Terminate(); 485 if (err != paNoError){ 486 printf("Error terminating portaudio: \"%s\"\n", Pa_GetErrorText(err)); 487 log_error("Error terminating portaudio: \"%s\"", Pa_GetErrorText(err)); 488 return; 489 } 490 #endif 491 492 #ifdef HAVE_AUDIO_DMA 493 hal_audio_dma_close(); 494 #endif 495 } 496 497 static void handle_l2cap_media_data_packet(avdtp_stream_endpoint_t * stream_endpoint, uint8_t *packet, uint16_t size){ 498 499 UNUSED(stream_endpoint); 500 501 int pos = 0; 502 503 avdtp_media_packet_header_t media_header; 504 media_header.version = packet[pos] & 0x03; 505 media_header.padding = get_bit16(packet[pos],2); 506 media_header.extension = get_bit16(packet[pos],3); 507 media_header.csrc_count = (packet[pos] >> 4) & 0x0F; 508 509 pos++; 510 511 media_header.marker = get_bit16(packet[pos],0); 512 media_header.payload_type = (packet[pos] >> 1) & 0x7F; 513 pos++; 514 515 media_header.sequence_number = big_endian_read_16(packet, pos); 516 pos+=2; 517 518 media_header.timestamp = big_endian_read_32(packet, pos); 519 pos+=4; 520 521 media_header.synchronization_source = big_endian_read_32(packet, pos); 522 pos+=4; 523 524 UNUSED(media_header); 525 526 // TODO: read csrc list 527 528 // printf_hexdump( packet, pos ); 529 // printf("MEDIA HEADER: %u timestamp, version %u, padding %u, extension %u, csrc_count %u\n", 530 // media_header.timestamp, media_header.version, media_header.padding, media_header.extension, media_header.csrc_count); 531 // printf("MEDIA HEADER: marker %02x, payload_type %02x, sequence_number %u, synchronization_source %u\n", 532 // media_header.marker, media_header.payload_type, media_header.sequence_number, media_header.synchronization_source); 533 534 avdtp_sbc_codec_header_t sbc_header; 535 sbc_header.fragmentation = get_bit16(packet[pos], 7); 536 sbc_header.starting_packet = get_bit16(packet[pos], 6); 537 sbc_header.last_packet = get_bit16(packet[pos], 5); 538 sbc_header.num_frames = packet[pos] & 0x0f; 539 pos++; 540 541 #ifdef HAVE_AUDIO_DMA 542 // store sbc frame size for buffer management 543 sbc_frame_size = (size-pos)/ sbc_header.num_frames; 544 #endif 545 546 UNUSED(sbc_header); 547 // 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); 548 // printf_hexdump( packet+pos, size-pos ); 549 550 #if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) 551 btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); 552 #endif 553 554 #ifdef HAVE_AUDIO_DMA 555 btstack_ring_buffer_write(&ring_buffer, packet+pos, size-pos); 556 557 // decide on audio sync drift based on number of sbc frames in queue 558 int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&ring_buffer) / sbc_frame_size; 559 if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ 560 sbc_samples_fix = 1; // duplicate last sample 561 } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ 562 sbc_samples_fix = 0; // nothing to do 563 } else { 564 sbc_samples_fix = -1; // drop last sample 565 } 566 567 // dump 568 printf("%6u %03u %d\n", (int) btstack_run_loop_get_time_ms(), sbc_frames_in_buffer, sbc_samples_fix); 569 570 #endif 571 572 #ifdef STORE_SBC_TO_SBC_FILE 573 fwrite(packet+pos, size-pos, 1, sbc_file); 574 #endif 575 } 576 577 static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ 578 printf(" -- a2dp sink demo: Received media codec configuration:\n"); 579 printf(" - num_channels: %d\n", configuration.num_channels); 580 printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); 581 printf(" - channel_mode: %d\n", configuration.channel_mode); 582 printf(" - block_length: %d\n", configuration.block_length); 583 printf(" - subbands: %d\n", configuration.subbands); 584 printf(" - allocation_method: %d\n", configuration.allocation_method); 585 printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); 586 printf("\n"); 587 } 588 589 static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 590 UNUSED(channel); 591 UNUSED(size); 592 bd_addr_t event_addr; 593 uint16_t local_cid; 594 uint8_t status = 0xFF; 595 switch (packet_type) { 596 case HCI_EVENT_PACKET: 597 switch (hci_event_packet_get_type(packet)) { 598 case HCI_EVENT_DISCONNECTION_COMPLETE: 599 // connection closed -> quit test app 600 printf("AVRCP: HCI_EVENT_DISCONNECTION_COMPLETE\n"); 601 break; 602 case HCI_EVENT_AVRCP_META: 603 switch (packet[2]){ 604 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 605 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 606 if (avrcp_cid != local_cid) { 607 printf("AVRCP Connection failed, expected 0x%02X l2cap cid, received 0x%02X\n", avrcp_cid, local_cid); 608 return; 609 } 610 611 status = avrcp_subevent_connection_established_get_status(packet); 612 if (status != ERROR_CODE_SUCCESS){ 613 printf("AVRCP Connection failed: status 0x%02x\n", status); 614 avrcp_cid = 0; 615 return; 616 } 617 avrcp_subevent_connection_established_get_bd_addr(packet, event_addr); 618 printf("Channel successfully opened: %s, avrcp_cid 0x%02x\n", bd_addr_to_str(event_addr), avrcp_cid); 619 620 // automatically enable notifications 621 avrcp_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); 622 avrcp_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); 623 return; 624 } 625 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 626 printf("Channel released: avrcp_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 627 avrcp_cid = 0; 628 return; 629 default: 630 break; 631 } 632 633 status = packet[5]; 634 if (!avrcp_cid) return; 635 636 // avoid printing INTERIM status 637 if (status == AVRCP_CTYPE_RESPONSE_INTERIM) return; 638 639 printf("AVRCP: command status: %s, ", avrcp_ctype2str(status)); 640 switch (packet[2]){ 641 case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: 642 printf("notification, playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); 643 return; 644 case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: 645 printf("notification, playing content changed\n"); 646 return; 647 case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: 648 printf("notification track changed\n"); 649 return; 650 case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: 651 printf("notification absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); 652 return; 653 case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: 654 printf("notification changed\n"); 655 return; 656 case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ 657 uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); 658 uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); 659 printf("%s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); 660 break; 661 } 662 case AVRCP_SUBEVENT_NOW_PLAYING_INFO:{ 663 uint8_t value[100]; 664 printf("now playing: \n"); 665 if (avrcp_subevent_now_playing_info_get_title_len(packet) > 0){ 666 memcpy(value, avrcp_subevent_now_playing_info_get_title(packet), avrcp_subevent_now_playing_info_get_title_len(packet)); 667 printf(" Title: %s\n", value); 668 } 669 if (avrcp_subevent_now_playing_info_get_album_len(packet) > 0){ 670 memcpy(value, avrcp_subevent_now_playing_info_get_album(packet), avrcp_subevent_now_playing_info_get_album_len(packet)); 671 printf(" Album: %s\n", value); 672 } 673 if (avrcp_subevent_now_playing_info_get_artist_len(packet) > 0){ 674 memcpy(value, avrcp_subevent_now_playing_info_get_artist(packet), avrcp_subevent_now_playing_info_get_artist_len(packet)); 675 printf(" Artist: %s\n", value); 676 } 677 if (avrcp_subevent_now_playing_info_get_genre_len(packet) > 0){ 678 memcpy(value, avrcp_subevent_now_playing_info_get_genre(packet), avrcp_subevent_now_playing_info_get_genre_len(packet)); 679 printf(" Genre: %s\n", value); 680 } 681 printf(" Track: %d\n", avrcp_subevent_now_playing_info_get_track(packet)); 682 printf(" Total nr. tracks: %d\n", avrcp_subevent_now_playing_info_get_total_tracks(packet)); 683 printf(" Song length: %d ms\n", avrcp_subevent_now_playing_info_get_song_length(packet)); 684 break; 685 } 686 case AVRCP_SUBEVENT_PLAY_STATUS: 687 printf("song length: %d ms, song position: %d ms, play status: %s\n", 688 avrcp_subevent_play_status_get_song_length(packet), 689 avrcp_subevent_play_status_get_song_position(packet), 690 avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); 691 break; 692 case AVRCP_SUBEVENT_OPERATION_COMPLETE: 693 printf("operation done %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 694 break; 695 case AVRCP_SUBEVENT_OPERATION_START: 696 printf("operation start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); 697 break; 698 case AVRCP_SUBEVENT_PLAYER_APPLICATION_VALUE_RESPONSE: 699 // response to set shuffle and repeat mode 700 printf("\n"); 701 break; 702 default: 703 printf("Not implemented\n"); 704 break; 705 } 706 break; 707 default: 708 break; 709 } 710 break; 711 default: 712 // other packet type 713 break; 714 } 715 716 } 717 718 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 719 UNUSED(channel); 720 UNUSED(size); 721 uint8_t status; 722 723 switch (packet_type) { 724 case HCI_EVENT_PACKET: 725 switch (hci_event_packet_get_type(packet)) { 726 case HCI_EVENT_A2DP_META: 727 switch (packet[2]){ 728 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: 729 printf(" received non SBC codec. not implemented\n"); 730 break; 731 case A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ 732 sbc_configuration.reconfigure = a2dp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); 733 sbc_configuration.num_channels = a2dp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); 734 sbc_configuration.sampling_frequency = a2dp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); 735 sbc_configuration.channel_mode = a2dp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); 736 sbc_configuration.block_length = a2dp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); 737 sbc_configuration.subbands = a2dp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); 738 sbc_configuration.allocation_method = a2dp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); 739 sbc_configuration.min_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); 740 sbc_configuration.max_bitpool_value = a2dp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); 741 sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; 742 dump_sbc_configuration(sbc_configuration); 743 744 if (sbc_configuration.reconfigure){ 745 media_processing_close(); 746 } 747 748 // prepare media processing 749 media_processing_init(sbc_configuration); 750 break; 751 } 752 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 753 status = a2dp_subevent_stream_established_get_status(packet); 754 if (status != 0){ 755 printf(" -- a2dp sink demo: streaming connection cannot be established, status 0x%02X\n", status); 756 app_state = AVDTP_APPLICATION_IDLE; 757 break; 758 } 759 760 // TODO: check it it the correct a2dp cid 761 a2dp_cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 762 printf(" -- a2dp sink demo: streaming connection is established, a2dp cid 0x%02X\n", status); 763 app_state = AVDTP_APPLICATION_STREAMING; 764 break; 765 766 case A2DP_SUBEVENT_STREAM_STARTED: 767 status = a2dp_subevent_stream_started_get_status(packet); 768 if (status != 0){ 769 printf(" -- a2dp sink demo: stream cannot be started, status 0x%02X\n", status); 770 app_state = AVDTP_APPLICATION_IDLE; 771 break; 772 } 773 774 // TODO: check it it the correct a2dp cid 775 a2dp_cid = a2dp_subevent_stream_started_get_a2dp_cid(packet); 776 printf(" -- a2dp sink demo: streaming, a2dp cid 0x%02X\n", status); 777 778 // started 779 // media_processing_init(sbc_configuration); 780 break; 781 782 case A2DP_SUBEVENT_STREAM_SUSPENDED: 783 status = a2dp_subevent_stream_suspended_get_status(packet); 784 if (status != 0){ 785 printf(" -- a2dp sink demo: stream cannot be paused, status 0x%02X\n", status); 786 break; 787 } 788 // TODO: check it it the correct a2dp cid 789 a2dp_cid = a2dp_subevent_stream_started_get_a2dp_cid(packet); 790 printf(" -- a2dp sink demo: stream paused, a2dp cid 0x%02X\n", status); 791 792 // paused/stopped 793 // media_processing_close(); 794 break; 795 796 case A2DP_SUBEVENT_STREAM_RELEASED: 797 status = a2dp_subevent_stream_released_get_status(packet); 798 if (status != 0){ 799 printf(" -- a2dp sink demo: stream cannot be released, status 0x%02X\n", status); 800 break; 801 } 802 803 // TODO: check it it the correct a2dp cid 804 a2dp_cid = a2dp_subevent_stream_released_get_a2dp_cid(packet); 805 app_state = AVDTP_APPLICATION_IDLE; 806 printf(" -- a2dp sink demo: stream released, a2dp cid 0x%02X\n", status); 807 808 // paused/stopped 809 media_processing_close(); 810 break; 811 812 default: 813 printf(" not implemented\n"); 814 break; 815 } 816 break; 817 default: 818 break; 819 } 820 break; 821 default: 822 // other packet type 823 break; 824 } 825 } 826 827 #ifdef HAVE_BTSTACK_STDIN 828 static void show_usage(void){ 829 bd_addr_t iut_address; 830 gap_local_bd_addr(iut_address); 831 printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); 832 printf("b - AVDTP Sink create connection to addr %s\n", device_addr_string); 833 printf("B - AVDTP Sink disconnect\n"); 834 printf("c - AVRCP create connection to addr %s\n", device_addr_string); 835 printf("C - AVRCP disconnect\n"); 836 837 printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); 838 printf("O - get play status\n"); 839 printf("j - get now playing info\n"); 840 printf("k - play\n"); 841 printf("K - stop\n"); 842 printf("L - pause\n"); 843 printf("u - start fast forward\n"); 844 printf("U - stop fast forward\n"); 845 printf("n - start rewind\n"); 846 printf("N - stop rewind\n"); 847 printf("i - forward\n"); 848 printf("I - backward\n"); 849 printf("t - volume up\n"); 850 printf("T - volume down\n"); 851 printf("p - absolute volume of 50 percent\n"); 852 printf("M - mute\n"); 853 printf("r - skip\n"); 854 printf("q - query repeat and shuffle mode\n"); 855 printf("v - repeat single track\n"); 856 printf("x - repeat all tracks\n"); 857 printf("X - disable repeat mode\n"); 858 printf("z - shuffle all tracks\n"); 859 printf("Z - disable shuffle mode\n"); 860 861 printf("Ctrl-c - exit\n"); 862 printf("---\n"); 863 } 864 #endif 865 866 static uint8_t media_sbc_codec_capabilities[] = { 867 0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 868 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 869 2, 53 870 }; 871 872 static uint8_t media_sbc_codec_configuration[] = { 873 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 874 (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 875 2, 53 876 }; 877 878 #ifdef HAVE_BTSTACK_STDIN 879 static void stdin_process(char cmd){ 880 sep.seid = 1; 881 switch (cmd){ 882 case 'b': 883 printf("Creating L2CAP Connection to %s, PSM_AVDTP\n", bd_addr_to_str(device_addr)); 884 a2dp_sink_establish_stream(device_addr, local_seid); 885 break; 886 case 'B': 887 printf("Disconnect\n"); 888 avdtp_sink_disconnect(a2dp_cid); 889 break; 890 case 'c': 891 printf(" - Create AVRCP connection to addr %s.\n", bd_addr_to_str(device_addr)); 892 avrcp_controller_connect(device_addr, &avrcp_cid); 893 printf(" assigned avrcp cid 0x%02x\n", avrcp_cid); 894 break; 895 case 'C': 896 printf(" - Disconnect\n"); 897 avrcp_disconnect(avrcp_cid); 898 break; 899 900 case '\n': 901 case '\r': 902 break; 903 case 'O': 904 printf(" - get play status\n"); 905 avrcp_get_play_status(avrcp_cid); 906 break; 907 case 'j': 908 printf(" - get now playing info\n"); 909 avrcp_get_now_playing_info(avrcp_cid); 910 break; 911 case 'k': 912 printf(" - play\n"); 913 avrcp_play(avrcp_cid); 914 break; 915 case 'K': 916 printf(" - stop\n"); 917 avrcp_stop(avrcp_cid); 918 break; 919 case 'L': 920 printf(" - pause\n"); 921 avrcp_pause(avrcp_cid); 922 break; 923 case 'u': 924 printf(" - start fast forward\n"); 925 avrcp_start_fast_forward(avrcp_cid); 926 break; 927 case 'U': 928 printf(" - stop fast forward\n"); 929 avrcp_stop_fast_forward(avrcp_cid); 930 break; 931 case 'n': 932 printf(" - start rewind\n"); 933 avrcp_start_rewind(avrcp_cid); 934 break; 935 case 'N': 936 printf(" - stop rewind\n"); 937 avrcp_stop_rewind(avrcp_cid); 938 break; 939 case 'i': 940 printf(" - forward\n"); 941 avrcp_forward(avrcp_cid); 942 break; 943 case 'I': 944 printf(" - backward\n"); 945 avrcp_backward(avrcp_cid); 946 break; 947 case 't': 948 printf(" - volume up\n"); 949 avrcp_volume_up(avrcp_cid); 950 break; 951 case 'T': 952 printf(" - volume down\n"); 953 avrcp_volume_down(avrcp_cid); 954 break; 955 case 'p': 956 printf(" - absolute volume of 50 percent\n"); 957 avrcp_set_absolute_volume(avrcp_cid, 50); 958 break; 959 case 'M': 960 printf(" - mute\n"); 961 avrcp_mute(avrcp_cid); 962 break; 963 case 'r': 964 printf(" - skip\n"); 965 avrcp_skip(avrcp_cid); 966 break; 967 case 'q': 968 printf(" - query repeat and shuffle mode\n"); 969 avrcp_query_shuffle_and_repeat_modes(avrcp_cid); 970 break; 971 case 'v': 972 printf(" - repeat single track\n"); 973 avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); 974 break; 975 case 'x': 976 printf(" - repeat all tracks\n"); 977 avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); 978 break; 979 case 'X': 980 printf(" - disable repeat mode\n"); 981 avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_OFF); 982 break; 983 case 'z': 984 printf(" - shuffle all tracks\n"); 985 avrcp_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); 986 break; 987 case 'Z': 988 printf(" - disable shuffle mode\n"); 989 avrcp_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_OFF); 990 break; 991 default: 992 show_usage(); 993 break; 994 995 } 996 } 997 #endif 998 999 1000 int btstack_main(int argc, const char * argv[]); 1001 int btstack_main(int argc, const char * argv[]){ 1002 1003 UNUSED(argc); 1004 (void)argv; 1005 1006 /* Register for HCI events */ 1007 hci_event_callback_registration.callback = &packet_handler; 1008 hci_add_event_handler(&hci_event_callback_registration); 1009 1010 l2cap_init(); 1011 // Initialize AVDTP Sink 1012 a2dp_sink_init(); 1013 a2dp_sink_register_packet_handler(&packet_handler); 1014 a2dp_sink_register_media_handler(&handle_l2cap_media_data_packet); 1015 1016 local_seid = 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)); 1017 1018 // Initialize AVRCP COntroller 1019 avrcp_controller_init(); 1020 avrcp_register_packet_handler(&avrcp_packet_handler); 1021 1022 // Initialize SDP 1023 sdp_init(); 1024 // setup AVDTP sink 1025 memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer)); 1026 a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, 1, NULL, NULL); 1027 sdp_register_service(sdp_avdtp_sink_service_buffer); 1028 1029 // setup AVRCP 1030 memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); 1031 avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10001, AVRCP_BROWSING_ENABLED, 1, NULL, NULL); 1032 sdp_register_service(sdp_avrcp_controller_service_buffer); 1033 1034 1035 gap_set_local_name("BTstack A2DP Sink Test"); 1036 gap_discoverable_control(1); 1037 gap_set_class_of_device(0x200408); 1038 printf("sdp, gap done\n"); 1039 1040 // turn on! 1041 hci_power_control(HCI_POWER_ON); 1042 1043 #ifdef HAVE_AUDIO_DMA 1044 static btstack_data_source_t hal_audio_dma_data_source; 1045 // set up polling data_source 1046 btstack_run_loop_set_data_source_handler(&hal_audio_dma_data_source, &hal_audio_dma_process); 1047 btstack_run_loop_enable_data_source_callbacks(&hal_audio_dma_data_source, DATA_SOURCE_CALLBACK_POLL); 1048 btstack_run_loop_add_data_source(&hal_audio_dma_data_source); 1049 #endif 1050 1051 #ifdef HAVE_BTSTACK_STDIN 1052 // parse human readable Bluetooth address 1053 sscanf_bd_addr(device_addr_string, device_addr); 1054 btstack_stdin_setup(stdin_process); 1055 #endif 1056 1057 return 0; 1058 } 1059