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.h" 45 46 #include "hxcmod.h" 47 #include "mods/mod.h" 48 49 #define NUM_CHANNELS 2 50 #define A2DP_SAMPLE_RATE 44100 51 #define BYTES_PER_AUDIO_SAMPLE (2*NUM_CHANNELS) 52 #define AUDIO_TIMEOUT_MS 10 53 #define TABLE_SIZE_441HZ 100 54 55 typedef enum { 56 STREAM_SINE = 0, 57 STREAM_MOD, 58 STREAM_PTS_TEST 59 } stream_data_source_t; 60 61 typedef struct { 62 uint16_t a2dp_cid; 63 uint8_t local_seid; 64 uint8_t connected; 65 66 uint32_t time_audio_data_sent; // ms 67 uint32_t acc_num_missed_samples; 68 uint32_t samples_ready; 69 btstack_timer_source_t audio_timer; 70 uint8_t streaming; 71 int max_media_payload_size; 72 73 uint8_t sbc_storage[1030]; 74 uint16_t sbc_storage_count; 75 uint8_t sbc_ready_to_send; 76 } a2dp_media_sending_context_t; 77 78 static uint8_t media_sbc_codec_capabilities[] = { 79 (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 80 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 81 2, 53 82 }; 83 84 static const int16_t sine_int16[] = { 85 0, 2057, 4107, 6140, 8149, 10126, 12062, 13952, 15786, 17557, 86 19260, 20886, 22431, 23886, 25247, 26509, 27666, 28714, 29648, 30466, 87 31163, 31738, 32187, 32509, 32702, 32767, 32702, 32509, 32187, 31738, 88 31163, 30466, 29648, 28714, 27666, 26509, 25247, 23886, 22431, 20886, 89 19260, 17557, 15786, 13952, 12062, 10126, 8149, 6140, 4107, 2057, 90 0, -2057, -4107, -6140, -8149, -10126, -12062, -13952, -15786, -17557, 91 -19260, -20886, -22431, -23886, -25247, -26509, -27666, -28714, -29648, -30466, 92 -31163, -31738, -32187, -32509, -32702, -32767, -32702, -32509, -32187, -31738, 93 -31163, -30466, -29648, -28714, -27666, -26509, -25247, -23886, -22431, -20886, 94 -19260, -17557, -15786, -13952, -12062, -10126, -8149, -6140, -4107, -2057, 95 }; 96 97 static const char * device_name = "A2DP Source Demo 00:00:00:00:00:00"; 98 static btstack_packet_callback_registration_t hci_event_callback_registration; 99 100 // mac 2011: static const char * device_addr_string = "04:0C:CE:E4:85:D3"; 101 // pts: static const char * device_addr_string = "00:1B:DC:08:0A:A5"; 102 // mac 2013: static const char * device_addr_string = "84:38:35:65:d1:15"; 103 // phone 2013: static const char * device_addr_string = "D8:BB:2C:DF:F0:F2"; 104 // minijambox: static const char * device_addr_string = "00:21:3C:AC:F7:38"; 105 // head phones: static const char * device_addr_string = "00:18:09:28:50:18"; 106 // bt dongle: static const char * device_addr_string = "00:15:83:5F:9D:46"; 107 // RT-B6 108 static const char * device_addr_string = "00:75:58:FF:C9:7D"; 109 110 static bd_addr_t device_addr; 111 static uint8_t sdp_a2dp_source_service_buffer[150]; 112 static uint8_t media_sbc_codec_configuration[4]; 113 static a2dp_media_sending_context_t media_tracker; 114 115 static uint16_t avrcp_cid; 116 static uint8_t avrcp_connected; 117 118 static stream_data_source_t data_source; 119 120 static int sine_phase; 121 122 static int hxcmod_initialized; 123 static modcontext mod_context; 124 static tracker_buffer_state trkbuf; 125 126 127 /* AVRCP Target context START */ 128 static const uint8_t subunit_info[] = { 129 0,0,0,0, 130 1,1,1,1, 131 2,2,2,2, 132 3,3,3,3, 133 4,4,4,4, 134 5,5,5,5, 135 6,6,6,6, 136 7,7,7,7 137 }; 138 139 static uint32_t company_id = 0x112233; 140 static uint8_t companies_num = 1; 141 static uint8_t companies[] = { 142 0x00, 0x19, 0x58 //BT SIG registered CompanyID 143 }; 144 145 static uint8_t events_num = 13; 146 static uint8_t events[] = { 147 AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED, 148 AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED, 149 AVRCP_NOTIFICATION_EVENT_TRACK_REACHED_END, 150 AVRCP_NOTIFICATION_EVENT_TRACK_REACHED_START, 151 AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED, 152 AVRCP_NOTIFICATION_EVENT_BATT_STATUS_CHANGED, 153 AVRCP_NOTIFICATION_EVENT_SYSTEM_STATUS_CHANGED, 154 AVRCP_NOTIFICATION_EVENT_PLAYER_APPLICATION_SETTING_CHANGED, 155 AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED, 156 AVRCP_NOTIFICATION_EVENT_AVAILABLE_PLAYERS_CHANGED, 157 AVRCP_NOTIFICATION_EVENT_ADDRESSED_PLAYER_CHANGED, 158 AVRCP_NOTIFICATION_EVENT_UIDS_CHANGED, 159 AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED 160 }; 161 162 typedef struct { 163 uint8_t track_id[8]; 164 uint32_t song_length_ms; 165 avrcp_playback_status_t status; 166 uint32_t song_position_ms; // 0xFFFFFFFF if not supported 167 } avrcp_play_status_info_t; 168 169 // python -c "print('a'*512)" 170 static const char title[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; 171 172 173 avrcp_track_t tracks[] = { 174 {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, 1, "Sine", "Generated", "AVRCP Demo", "monotone", 12345}, 175 {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, 2, "Nao-deceased", "Decease", "AVRCP Demo", "vivid", 12345}, 176 {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03}, 3, (char *)title, "Decease", "AVRCP Demo", "vivid", 12345}, 177 }; 178 int current_track_index; 179 avrcp_play_status_info_t play_info; 180 181 /* AVRCP Target context END */ 182 183 static void a2dp_demo_send_media_packet(void){ 184 int num_bytes_in_frame = btstack_sbc_encoder_sbc_buffer_length(); 185 int bytes_in_storage = media_tracker.sbc_storage_count; 186 uint8_t num_frames = bytes_in_storage / num_bytes_in_frame; 187 a2dp_source_stream_send_media_payload(media_tracker.a2dp_cid, media_tracker.local_seid, media_tracker.sbc_storage, bytes_in_storage, num_frames, 0); 188 media_tracker.sbc_storage_count = 0; 189 media_tracker.sbc_ready_to_send = 0; 190 } 191 192 static void produce_sine_audio(int16_t * pcm_buffer, int num_samples_to_write){ 193 int count; 194 for (count = 0; count < num_samples_to_write ; count++){ 195 pcm_buffer[count * 2] = sine_int16[sine_phase]; 196 pcm_buffer[count * 2 + 1] = sine_int16[sine_phase]; 197 sine_phase++; 198 if (sine_phase >= TABLE_SIZE_441HZ){ 199 sine_phase -= TABLE_SIZE_441HZ; 200 } 201 } 202 } 203 204 static void produce_mod_audio(int16_t * pcm_buffer, int num_samples_to_write){ 205 hxcmod_fillbuffer(&mod_context, (unsigned short *) &pcm_buffer[0], num_samples_to_write, &trkbuf); 206 } 207 208 static void produce_audio(int16_t * pcm_buffer, int num_samples){ 209 switch (data_source){ 210 case STREAM_SINE: 211 produce_sine_audio(pcm_buffer, num_samples); 212 break; 213 case STREAM_MOD: 214 produce_mod_audio(pcm_buffer, num_samples); 215 break; 216 default: 217 break; 218 } 219 } 220 221 static int a2dp_demo_fill_sbc_audio_buffer(a2dp_media_sending_context_t * context){ 222 // perform sbc encodin 223 int total_num_bytes_read = 0; 224 unsigned int num_audio_samples_per_sbc_buffer = btstack_sbc_encoder_num_audio_frames(); 225 while (context->samples_ready >= num_audio_samples_per_sbc_buffer 226 && (context->max_media_payload_size - context->sbc_storage_count) >= btstack_sbc_encoder_sbc_buffer_length()){ 227 228 int16_t pcm_frame[256*NUM_CHANNELS]; 229 230 produce_audio(pcm_frame, num_audio_samples_per_sbc_buffer); 231 btstack_sbc_encoder_process_data(pcm_frame); 232 233 uint16_t sbc_frame_size = btstack_sbc_encoder_sbc_buffer_length(); 234 uint8_t * sbc_frame = btstack_sbc_encoder_sbc_buffer(); 235 236 total_num_bytes_read += num_audio_samples_per_sbc_buffer; 237 memcpy(&context->sbc_storage[context->sbc_storage_count], sbc_frame, sbc_frame_size); 238 context->sbc_storage_count += sbc_frame_size; 239 context->samples_ready -= num_audio_samples_per_sbc_buffer; 240 } 241 return total_num_bytes_read; 242 } 243 244 static void a2dp_demo_audio_timeout_handler(btstack_timer_source_t * timer){ 245 a2dp_media_sending_context_t * context = (a2dp_media_sending_context_t *) btstack_run_loop_get_timer_context(timer); 246 btstack_run_loop_set_timer(&context->audio_timer, AUDIO_TIMEOUT_MS); 247 btstack_run_loop_add_timer(&context->audio_timer); 248 uint32_t now = btstack_run_loop_get_time_ms(); 249 250 uint32_t update_period_ms = AUDIO_TIMEOUT_MS; 251 if (context->time_audio_data_sent > 0){ 252 update_period_ms = now - context->time_audio_data_sent; 253 } 254 255 uint32_t num_samples = (update_period_ms * A2DP_SAMPLE_RATE) / 1000; 256 context->acc_num_missed_samples += (update_period_ms * A2DP_SAMPLE_RATE) % 1000; 257 258 while (context->acc_num_missed_samples >= 1000){ 259 num_samples++; 260 context->acc_num_missed_samples -= 1000; 261 } 262 context->time_audio_data_sent = now; 263 context->samples_ready += num_samples; 264 265 if (context->sbc_ready_to_send) return; 266 267 a2dp_demo_fill_sbc_audio_buffer(context); 268 269 if ((context->sbc_storage_count + btstack_sbc_encoder_sbc_buffer_length()) > context->max_media_payload_size){ 270 // schedule sending 271 context->sbc_ready_to_send = 1; 272 a2dp_source_stream_endpoint_request_can_send_now(context->a2dp_cid, context->local_seid); 273 } 274 } 275 276 static void a2dp_demo_timer_start(a2dp_media_sending_context_t * context){ 277 context->max_media_payload_size = a2dp_max_media_payload_size(context->a2dp_cid, context->local_seid); 278 context->sbc_storage_count = 0; 279 context->sbc_ready_to_send = 0; 280 context->streaming = 1; 281 btstack_run_loop_remove_timer(&context->audio_timer); 282 btstack_run_loop_set_timer_handler(&context->audio_timer, a2dp_demo_audio_timeout_handler); 283 btstack_run_loop_set_timer_context(&context->audio_timer, context); 284 btstack_run_loop_set_timer(&context->audio_timer, AUDIO_TIMEOUT_MS); 285 btstack_run_loop_add_timer(&context->audio_timer); 286 } 287 288 static void a2dp_demo_timer_stop(a2dp_media_sending_context_t * context){ 289 context->time_audio_data_sent = 0; 290 context->acc_num_missed_samples = 0; 291 context->samples_ready = 0; 292 context->streaming = 1; 293 context->sbc_storage_count = 0; 294 context->sbc_ready_to_send = 0; 295 btstack_run_loop_remove_timer(&context->audio_timer); 296 } 297 298 static void a2dp_demo_timer_pause(a2dp_media_sending_context_t * context){ 299 btstack_run_loop_remove_timer(&context->audio_timer); 300 } 301 302 303 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 304 UNUSED(channel); 305 UNUSED(size); 306 uint8_t status; 307 uint8_t local_seid; 308 bd_addr_t address; 309 uint16_t cid; 310 311 if (packet_type != HCI_EVENT_PACKET) return; 312 313 #ifndef HAVE_BTSTACK_STDIN 314 if (hci_event_packet_get_type(packet) == BTSTACK_EVENT_STATE){ 315 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) return; 316 printf("Create AVDTP Source connection to addr %s.\n", bd_addr_to_str(device_addr)); 317 status = a2dp_source_establish_stream(device_addr, media_tracker.local_seid, &media_tracker.a2dp_cid); 318 if (status != ERROR_CODE_SUCCESS){ 319 printf("Could not perform command, status 0x%2x\n", status); 320 } 321 return; 322 } 323 #endif 324 325 if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; 326 switch (packet[2]){ 327 case A2DP_SUBEVENT_INCOMING_CONNECTION_ESTABLISHED: 328 // TODO: check incoming cid 329 a2dp_subevent_incoming_connection_established_get_bd_addr(packet, address); 330 cid = a2dp_subevent_incoming_connection_established_get_a2dp_cid(packet); 331 if (cid != media_tracker.a2dp_cid) break; 332 333 media_tracker.connected = 1; 334 printf("A2DP: Incoming connection established: address %s, a2dp cid 0x%02x. Create stream on local seid %d.\n", 335 bd_addr_to_str(address), media_tracker.a2dp_cid, media_tracker.local_seid); 336 status = a2dp_source_establish_stream(device_addr, media_tracker.local_seid, &media_tracker.a2dp_cid); 337 if (status != ERROR_CODE_SUCCESS){ 338 printf("Could not perform command, status 0x%2x\n", status); 339 } 340 break; 341 case A2DP_SUBEVENT_STREAM_ESTABLISHED: 342 a2dp_subevent_stream_established_get_bd_addr(packet, address); 343 status = a2dp_subevent_stream_established_get_status(packet); 344 if (status){ 345 printf("A2DP: Stream establishment failed: status 0x%02x.\n", status); 346 break; 347 } 348 local_seid = a2dp_subevent_stream_established_get_local_seid(packet); 349 if (local_seid != media_tracker.local_seid){ 350 printf("A2DP: Stream establishment failed: wrong local seid %d, expected %d.\n", local_seid, media_tracker.local_seid); 351 break; 352 } 353 media_tracker.a2dp_cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); 354 printf("A2DP: Stream established: address %s, a2dp cid 0x%02x, local seid %d, remote seid %d.\n", bd_addr_to_str(address), 355 media_tracker.a2dp_cid, media_tracker.local_seid, a2dp_subevent_stream_established_get_remote_seid(packet)); 356 printf("Start playing mod.\n"); 357 data_source = STREAM_MOD; 358 status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); 359 break; 360 361 case A2DP_SUBEVENT_STREAM_STARTED: 362 play_info.status = AVRCP_PLAYBACK_STATUS_PLAYING; 363 avrcp_target_set_now_playing_info(avrcp_cid, &tracks[data_source], sizeof(tracks)/sizeof(avrcp_track_t)); 364 avrcp_target_set_playback_status(avrcp_cid, AVRCP_PLAYBACK_STATUS_PLAYING); 365 a2dp_demo_timer_start(&media_tracker); 366 printf("A2DP: Stream started.\n"); 367 break; 368 369 case A2DP_SUBEVENT_STREAMING_CAN_SEND_MEDIA_PACKET_NOW: 370 a2dp_demo_send_media_packet(); 371 break; 372 373 case A2DP_SUBEVENT_STREAM_SUSPENDED: 374 play_info.status = AVRCP_PLAYBACK_STATUS_PAUSED; 375 avrcp_target_set_playback_status(avrcp_cid, AVRCP_PLAYBACK_STATUS_PAUSED); 376 printf("A2DP: Stream paused.\n"); 377 a2dp_demo_timer_pause(&media_tracker); 378 break; 379 380 case A2DP_SUBEVENT_STREAM_RELEASED: 381 avrcp_target_set_now_playing_info(avrcp_cid, NULL, sizeof(tracks)/sizeof(avrcp_track_t)); 382 play_info.status = AVRCP_PLAYBACK_STATUS_STOPPED; 383 avrcp_target_set_playback_status(avrcp_cid, AVRCP_PLAYBACK_STATUS_STOPPED); 384 printf("A2DP: Stream released.\n"); 385 a2dp_demo_timer_stop(&media_tracker); 386 break; 387 case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: 388 printf("A2DP: Signaling released.\n"); 389 cid = a2dp_subevent_signaling_connection_released_get_a2dp_cid(packet); 390 if (cid == media_tracker.a2dp_cid) { 391 media_tracker.connected = 0; 392 media_tracker.a2dp_cid = 0; 393 } 394 break; 395 default: 396 printf("A2DP: event 0x%02x is not parsed\n", packet[2]); 397 break; 398 } 399 } 400 401 static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 402 UNUSED(channel); 403 UNUSED(size); 404 bd_addr_t event_addr; 405 uint16_t local_cid; 406 uint8_t status = ERROR_CODE_SUCCESS; 407 408 if (packet_type != HCI_EVENT_PACKET) return; 409 if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; 410 411 switch (packet[2]){ 412 case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { 413 local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); 414 // if (avrcp_cid != 0 && avrcp_cid != local_cid) { 415 // printf("AVRCP: Connection failed, expected 0x%02X l2cap cid, received 0x%02X\n", avrcp_cid, local_cid); 416 // return; 417 // } 418 // if (avrcp_cid != local_cid) break; 419 420 status = avrcp_subevent_connection_established_get_status(packet); 421 if (status != ERROR_CODE_SUCCESS){ 422 printf("AVRCP: Connection failed: status 0x%02x\n", status); 423 return; 424 } 425 avrcp_connected = 1; 426 avrcp_cid = local_cid; 427 avrcp_subevent_connection_established_get_bd_addr(packet, event_addr); 428 printf("AVRCP: connected to %s, avrcp_cid 0x%02x\n", bd_addr_to_str(event_addr), local_cid); 429 430 avrcp_target_set_now_playing_info(avrcp_cid, NULL, sizeof(tracks)/sizeof(avrcp_track_t)); 431 avrcp_target_set_unit_info(avrcp_cid, AVRCP_SUBUNIT_TYPE_AUDIO, company_id); 432 avrcp_target_set_subunit_info(avrcp_cid, AVRCP_SUBUNIT_TYPE_AUDIO, (uint8_t *)subunit_info, sizeof(subunit_info)); 433 return; 434 } 435 436 case AVRCP_SUBEVENT_EVENT_IDS_QUERY: 437 status = avrcp_target_supported_events(avrcp_cid, events_num, events, sizeof(events)); 438 break; 439 case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: 440 status = avrcp_target_supported_companies(avrcp_cid, companies_num, companies, sizeof(companies)); 441 break; 442 case AVRCP_SUBEVENT_PLAY_STATUS_QUERY: 443 status = avrcp_target_play_status(avrcp_cid, play_info.song_length_ms, play_info.song_position_ms, play_info.status); 444 break; 445 // case AVRCP_SUBEVENT_NOW_PLAYING_INFO_QUERY: 446 // status = avrcp_target_now_playing_info(avrcp_cid); 447 // break; 448 case AVRCP_SUBEVENT_OPERATION:{ 449 avrcp_operation_id_t operation_id = avrcp_subevent_operation_get_operation_id(packet); 450 if (!media_tracker.connected) break; 451 switch (operation_id){ 452 case AVRCP_OPERATION_ID_PLAY: 453 status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); 454 break; 455 case AVRCP_OPERATION_ID_PAUSE: 456 status = a2dp_source_pause_stream(media_tracker.a2dp_cid, media_tracker.local_seid); 457 break; 458 case AVRCP_OPERATION_ID_STOP: 459 status = a2dp_source_disconnect(media_tracker.a2dp_cid); 460 break; 461 default: 462 return; 463 } 464 break; 465 } 466 case AVRCP_SUBEVENT_CONNECTION_RELEASED: 467 printf("AVRCP: Channel released: avrcp_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); 468 avrcp_cid = 0; 469 return; 470 default: 471 printf("AVRCP: event not parsed %02x\n", packet[2]); 472 break; 473 } 474 475 if (status != ERROR_CODE_SUCCESS){ 476 printf("Responding to event 0x%02x failed with status 0x%02x\n", packet[2], status); 477 } 478 } 479 480 #ifdef HAVE_BTSTACK_STDIN 481 static void show_usage(void){ 482 bd_addr_t iut_address; 483 gap_local_bd_addr(iut_address); 484 printf("\n--- Bluetooth A2DP Source/AVRCP Target Demo %s ---\n", bd_addr_to_str(iut_address)); 485 printf("b - AVDTP Source create connection to addr %s\n", device_addr_string); 486 printf("B - AVDTP Source disconnect\n"); 487 printf("c - AVRCP Target create connection to addr %s\n", device_addr_string); 488 printf("C - AVRCP Target disconnect\n"); 489 printf("0 - AVRCP reset now playing info\n"); 490 491 printf("x - start streaming sine\n"); 492 if (hxcmod_initialized){ 493 printf("z - start streaming '%s'\n", mod_name); 494 } 495 printf("p - pause streaming\n"); 496 497 printf("\n--- Bluetooth AVRCP Target Commands %s ---\n", bd_addr_to_str(iut_address)); 498 printf("---\n"); 499 } 500 501 static void stdin_process(char cmd){ 502 uint8_t status = ERROR_CODE_SUCCESS; 503 switch (cmd){ 504 case 'b': 505 printf(" - Create AVDTP Source connection to addr %s.\n", bd_addr_to_str(device_addr)); 506 status = a2dp_source_establish_stream(device_addr, media_tracker.local_seid, &media_tracker.a2dp_cid); 507 break; 508 case 'B': 509 printf(" - AVDTP Source Disconnect from cid 0x%2x\n", media_tracker.a2dp_cid); 510 status = a2dp_source_disconnect(media_tracker.a2dp_cid); 511 break; 512 case 'c': 513 printf(" - Create AVRCP Target connection to addr %s.\n", bd_addr_to_str(device_addr)); 514 status = avrcp_target_connect(device_addr, &avrcp_cid); 515 break; 516 case 'C': 517 printf(" - AVRCP Target disconnect\n"); 518 status = avrcp_target_disconnect(avrcp_cid); 519 break; 520 521 case '\n': 522 case '\r': 523 break; 524 525 case 't': 526 printf("STREAM_PTS_TEST.\n"); 527 data_source = STREAM_PTS_TEST; 528 avrcp_target_set_now_playing_info(avrcp_cid, &tracks[data_source], sizeof(tracks)/sizeof(avrcp_track_t)); 529 if (!media_tracker.connected) break; 530 status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); 531 break; 532 533 case 'x': 534 avrcp_target_set_now_playing_info(avrcp_cid, &tracks[data_source], sizeof(tracks)/sizeof(avrcp_track_t)); 535 if (data_source == STREAM_SINE) { 536 printf("Already playing sine.\n"); 537 return; 538 } 539 printf("Playing sine.\n"); 540 data_source = STREAM_SINE; 541 if (!media_tracker.connected) break; 542 status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); 543 break; 544 case 'z': 545 avrcp_target_set_now_playing_info(avrcp_cid, &tracks[data_source], sizeof(tracks)/sizeof(avrcp_track_t)); 546 if (data_source == STREAM_MOD) { 547 printf("Already playing mode.\n"); 548 return; 549 } 550 printf("Playing mod.\n"); 551 data_source = STREAM_MOD; 552 if (!media_tracker.connected) break; 553 status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); 554 break; 555 case 'p': 556 printf("Pause stream.\n"); 557 if (!media_tracker.connected) break; 558 status = a2dp_source_pause_stream(media_tracker.a2dp_cid, media_tracker.local_seid); 559 break; 560 case '0': 561 avrcp_target_set_now_playing_info(avrcp_cid, NULL, sizeof(tracks)/sizeof(avrcp_track_t)); 562 printf("Reset now playing info\n"); 563 break; 564 default: 565 show_usage(); 566 return; 567 } 568 if (status != ERROR_CODE_SUCCESS){ 569 printf("Could not perform command, status 0x%2x\n", status); 570 } 571 } 572 #endif 573 574 575 int btstack_main(int argc, const char * argv[]); 576 int btstack_main(int argc, const char * argv[]){ 577 UNUSED(argc); 578 (void)argv; 579 580 // register for HCI events 581 hci_event_callback_registration.callback = &packet_handler; 582 hci_add_event_handler(&hci_event_callback_registration); 583 584 l2cap_init(); 585 // Initialize AVDTP Source 586 a2dp_source_init(); 587 a2dp_source_register_packet_handler(&packet_handler); 588 589 avdtp_stream_endpoint_t * local_stream_endpoint = a2dp_source_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)); 590 if (!local_stream_endpoint){ 591 printf("A2DP source demo: not enough memory to create local stream endpoint\n"); 592 return 1; 593 } 594 media_tracker.local_seid = avdtp_local_seid(local_stream_endpoint); 595 596 // Initialize AVRCP Target 597 avrcp_target_init(); 598 avrcp_target_register_packet_handler(&avrcp_target_packet_handler); 599 // Initialize SDP 600 sdp_init(); 601 memset(sdp_a2dp_source_service_buffer, 0, sizeof(sdp_a2dp_source_service_buffer)); 602 a2dp_source_create_sdp_record(sdp_a2dp_source_service_buffer, 0x10002, 1, NULL, NULL); 603 sdp_register_service(sdp_a2dp_source_service_buffer); 604 605 gap_set_local_name(device_name); 606 gap_discoverable_control(1); 607 gap_set_class_of_device(0x200408); 608 609 hxcmod_initialized = hxcmod_init(&mod_context); 610 if (hxcmod_initialized){ 611 hxcmod_setcfg(&mod_context, A2DP_SAMPLE_RATE, 16, 1, 1, 1); 612 hxcmod_load(&mod_context, (void *) &mod_data, mod_len); 613 printf("loaded mod '%s', size %u\n", mod_name, mod_len); 614 } 615 // parse human readable Bluetooth address 616 sscanf_bd_addr(device_addr_string, device_addr); 617 618 #ifdef HAVE_BTSTACK_STDIN 619 btstack_stdin_setup(stdin_process); 620 #endif 621 // turn on! 622 hci_power_control(HCI_POWER_ON); 623 return 0; 624 } 625