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