/* * Copyright (C) 2016 BlueKitchen GmbH * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * 4. Any redistribution, use, or modification is done solely for * personal benefit and not for any commercial purpose or for * monetary gain. * * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Please inquire about commercial licensing options at * contact@bluekitchen-gmbh.com * */ #define __BTSTACK_FILE__ "a2dp_source_demo.c" /* * a2dp_source_demo.c */ // ***************************************************************************** /* EXAMPLE_START(a2dp_source_demo): Serve audio stream and handle remote playback control and queries. * * @text This A2DP Source example demonstrates how to send an audio data stream * to a remote A2DP Sink device and how to switch between two audio data sources. * In addition, the AVRCP Target is used to answer queries on currently played media, * as well as to handle remote playback control, i.e. play, stop, repeat, etc. * * @test To test with a remote device, e.g. a Bluetooth speaker, * set the device_addr_string to the Bluetooth address of your * remote device in the code, and use the UI to connect and start playback. * Tap SPACE on the console to show the available commands. */ // ***************************************************************************** #include #include #include #include #include "btstack.h" #include "hxcmod.h" #include "mods/mod.h" #define AVRCP_BROWSING_ENABLED 0 #define NUM_CHANNELS 2 #define A2DP_SAMPLE_RATE 44100 #define BYTES_PER_AUDIO_SAMPLE (2*NUM_CHANNELS) #define AUDIO_TIMEOUT_MS 10 #define TABLE_SIZE_441HZ 100 typedef enum { STREAM_SINE = 0, STREAM_MOD, STREAM_PTS_TEST } stream_data_source_t; typedef struct { uint16_t a2dp_cid; uint8_t local_seid; uint8_t connected; uint32_t time_audio_data_sent; // ms uint32_t acc_num_missed_samples; uint32_t samples_ready; btstack_timer_source_t audio_timer; uint8_t streaming; int max_media_payload_size; uint8_t sbc_storage[1030]; uint16_t sbc_storage_count; uint8_t sbc_ready_to_send; } a2dp_media_sending_context_t; static uint8_t media_sbc_codec_capabilities[] = { (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, 0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS, 2, 53 }; static const int16_t sine_int16[] = { 0, 2057, 4107, 6140, 8149, 10126, 12062, 13952, 15786, 17557, 19260, 20886, 22431, 23886, 25247, 26509, 27666, 28714, 29648, 30466, 31163, 31738, 32187, 32509, 32702, 32767, 32702, 32509, 32187, 31738, 31163, 30466, 29648, 28714, 27666, 26509, 25247, 23886, 22431, 20886, 19260, 17557, 15786, 13952, 12062, 10126, 8149, 6140, 4107, 2057, 0, -2057, -4107, -6140, -8149, -10126, -12062, -13952, -15786, -17557, -19260, -20886, -22431, -23886, -25247, -26509, -27666, -28714, -29648, -30466, -31163, -31738, -32187, -32509, -32702, -32767, -32702, -32509, -32187, -31738, -31163, -30466, -29648, -28714, -27666, -26509, -25247, -23886, -22431, -20886, -19260, -17557, -15786, -13952, -12062, -10126, -8149, -6140, -4107, -2057, }; static btstack_packet_callback_registration_t hci_event_callback_registration; // mac 2011: static const char * device_addr_string = "04:0C:CE:E4:85:D3"; // pts: static const char * device_addr_string = "00:1B:DC:08:0A:A5"; // mac 2013: static const char * device_addr_string = "84:38:35:65:d1:15"; // phone 2013: static const char * device_addr_string = "D8:BB:2C:DF:F0:F2"; // minijambox: static const char * device_addr_string = "00:21:3C:AC:F7:38"; // head phones: static const char * device_addr_string = "00:18:09:28:50:18"; // bt dongle: static const char * device_addr_string = "00:15:83:5F:9D:46"; // RT-B6: static const char * device_addr_string = "00:75:58:FF:C9:7D"; static bd_addr_t device_addr; static uint8_t sdp_a2dp_source_service_buffer[150]; static uint8_t sdp_avrcp_target_service_buffer[200]; static uint8_t media_sbc_codec_configuration[4]; static a2dp_media_sending_context_t media_tracker; static uint16_t avrcp_cid; static uint8_t avrcp_connected; static stream_data_source_t data_source; static int sine_phase; static int hxcmod_initialized; static modcontext mod_context; static tracker_buffer_state trkbuf; /* AVRCP Target context START */ static const uint8_t subunit_info[] = { 0,0,0,0, 1,1,1,1, 2,2,2,2, 3,3,3,3, 4,4,4,4, 5,5,5,5, 6,6,6,6, 7,7,7,7 }; static uint32_t company_id = 0x112233; static uint8_t companies_num = 1; static uint8_t companies[] = { 0x00, 0x19, 0x58 //BT SIG registered CompanyID }; static uint8_t events_num = 13; static uint8_t events[] = { AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED, AVRCP_NOTIFICATION_EVENT_TRACK_REACHED_END, AVRCP_NOTIFICATION_EVENT_TRACK_REACHED_START, AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED, AVRCP_NOTIFICATION_EVENT_BATT_STATUS_CHANGED, AVRCP_NOTIFICATION_EVENT_SYSTEM_STATUS_CHANGED, AVRCP_NOTIFICATION_EVENT_PLAYER_APPLICATION_SETTING_CHANGED, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED, AVRCP_NOTIFICATION_EVENT_AVAILABLE_PLAYERS_CHANGED, AVRCP_NOTIFICATION_EVENT_ADDRESSED_PLAYER_CHANGED, AVRCP_NOTIFICATION_EVENT_UIDS_CHANGED, AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED }; typedef struct { uint8_t track_id[8]; uint32_t song_length_ms; avrcp_playback_status_t status; uint32_t song_position_ms; // 0xFFFFFFFF if not supported } avrcp_play_status_info_t; // python -c "print('a'*512)" static const char title[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; avrcp_track_t tracks[] = { {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, 1, "Sine", "Generated", "AVRCP Demo", "monotone", 12345}, {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, 2, "Nao-deceased", "Decease", "AVRCP Demo", "vivid", 12345}, {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03}, 3, (char *)title, "Decease", "AVRCP Demo", "vivid", 12345}, }; int current_track_index; avrcp_play_status_info_t play_info; /* AVRCP Target context END */ /* @section Main Application Setup * * @text The Listing MainConfiguration shows how to setup AD2P Source and AVRCP Target services. */ /* LISTING_START(MainConfiguration): Setup Audio Source and AVRCP Target services */ static void a2dp_source_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size); static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); #ifdef HAVE_BTSTACK_STDIN static void stdin_process(char cmd); #endif static int a2dp_source_and_avrcp_services_init(void){ // Register for HCI events. hci_event_callback_registration.callback = &a2dp_source_packet_handler; hci_add_event_handler(&hci_event_callback_registration); l2cap_init(); // Initialize A2DP Source. a2dp_source_init(); a2dp_source_register_packet_handler(&a2dp_source_packet_handler); // Create stream endpoint. 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)); if (!local_stream_endpoint){ printf("A2DP source demo: not enough memory to create local stream endpoint\n"); return 1; } media_tracker.local_seid = avdtp_local_seid(local_stream_endpoint); // Initialize AVRCP Target. avrcp_target_init(); avrcp_target_register_packet_handler(&avrcp_target_packet_handler); // Initialize SDP, sdp_init(); // Create A2DP source service record and register it with SDP. memset(sdp_a2dp_source_service_buffer, 0, sizeof(sdp_a2dp_source_service_buffer)); a2dp_source_create_sdp_record(sdp_a2dp_source_service_buffer, 0x10002, 1, NULL, NULL); sdp_register_service(sdp_a2dp_source_service_buffer); // Create AVRCP target service record and register it with SDP. memset(sdp_avrcp_target_service_buffer, 0, sizeof(sdp_avrcp_target_service_buffer)); avrcp_target_create_sdp_record(sdp_avrcp_target_service_buffer, 0x10001, AVRCP_BROWSING_ENABLED, 1, NULL, NULL); sdp_register_service(sdp_avrcp_target_service_buffer); // Set local name with a template Bluetooth address, that will be automatically // replaced with a actual address once it is available, i.e. when BTstack boots // up and starts talking to a Bluetooth module. gap_set_local_name("A2DP Source Demo 00:00:00:00:00:00"); gap_discoverable_control(1); gap_set_class_of_device(0x200408); hxcmod_initialized = hxcmod_init(&mod_context); if (hxcmod_initialized){ hxcmod_setcfg(&mod_context, A2DP_SAMPLE_RATE, 16, 1, 1, 1); hxcmod_load(&mod_context, (void *) &mod_data, mod_len); printf("loaded mod '%s', size %u\n", mod_name, mod_len); } // Parse human readable Bluetooth address. sscanf_bd_addr(device_addr_string, device_addr); #ifdef HAVE_BTSTACK_STDIN btstack_stdin_setup(stdin_process); #endif return 0; } /* LISTING_END */ static void a2dp_demo_send_media_packet(void){ int num_bytes_in_frame = btstack_sbc_encoder_sbc_buffer_length(); int bytes_in_storage = media_tracker.sbc_storage_count; uint8_t num_frames = bytes_in_storage / num_bytes_in_frame; a2dp_source_stream_send_media_payload(media_tracker.a2dp_cid, media_tracker.local_seid, media_tracker.sbc_storage, bytes_in_storage, num_frames, 0); media_tracker.sbc_storage_count = 0; media_tracker.sbc_ready_to_send = 0; } static void produce_sine_audio(int16_t * pcm_buffer, int num_samples_to_write){ int count; for (count = 0; count < num_samples_to_write ; count++){ pcm_buffer[count * 2] = sine_int16[sine_phase]; pcm_buffer[count * 2 + 1] = sine_int16[sine_phase]; sine_phase++; if (sine_phase >= TABLE_SIZE_441HZ){ sine_phase -= TABLE_SIZE_441HZ; } } } static void produce_mod_audio(int16_t * pcm_buffer, int num_samples_to_write){ hxcmod_fillbuffer(&mod_context, (unsigned short *) &pcm_buffer[0], num_samples_to_write, &trkbuf); } static void produce_audio(int16_t * pcm_buffer, int num_samples){ switch (data_source){ case STREAM_SINE: produce_sine_audio(pcm_buffer, num_samples); break; case STREAM_MOD: produce_mod_audio(pcm_buffer, num_samples); break; default: break; } } static int a2dp_demo_fill_sbc_audio_buffer(a2dp_media_sending_context_t * context){ // perform sbc encodin int total_num_bytes_read = 0; unsigned int num_audio_samples_per_sbc_buffer = btstack_sbc_encoder_num_audio_frames(); while (context->samples_ready >= num_audio_samples_per_sbc_buffer && (context->max_media_payload_size - context->sbc_storage_count) >= btstack_sbc_encoder_sbc_buffer_length()){ int16_t pcm_frame[256*NUM_CHANNELS]; produce_audio(pcm_frame, num_audio_samples_per_sbc_buffer); btstack_sbc_encoder_process_data(pcm_frame); uint16_t sbc_frame_size = btstack_sbc_encoder_sbc_buffer_length(); uint8_t * sbc_frame = btstack_sbc_encoder_sbc_buffer(); total_num_bytes_read += num_audio_samples_per_sbc_buffer; memcpy(&context->sbc_storage[context->sbc_storage_count], sbc_frame, sbc_frame_size); context->sbc_storage_count += sbc_frame_size; context->samples_ready -= num_audio_samples_per_sbc_buffer; } return total_num_bytes_read; } static void a2dp_demo_audio_timeout_handler(btstack_timer_source_t * timer){ a2dp_media_sending_context_t * context = (a2dp_media_sending_context_t *) btstack_run_loop_get_timer_context(timer); btstack_run_loop_set_timer(&context->audio_timer, AUDIO_TIMEOUT_MS); btstack_run_loop_add_timer(&context->audio_timer); uint32_t now = btstack_run_loop_get_time_ms(); uint32_t update_period_ms = AUDIO_TIMEOUT_MS; if (context->time_audio_data_sent > 0){ update_period_ms = now - context->time_audio_data_sent; } uint32_t num_samples = (update_period_ms * A2DP_SAMPLE_RATE) / 1000; context->acc_num_missed_samples += (update_period_ms * A2DP_SAMPLE_RATE) % 1000; while (context->acc_num_missed_samples >= 1000){ num_samples++; context->acc_num_missed_samples -= 1000; } context->time_audio_data_sent = now; context->samples_ready += num_samples; if (context->sbc_ready_to_send) return; a2dp_demo_fill_sbc_audio_buffer(context); if ((context->sbc_storage_count + btstack_sbc_encoder_sbc_buffer_length()) > context->max_media_payload_size){ // schedule sending context->sbc_ready_to_send = 1; a2dp_source_stream_endpoint_request_can_send_now(context->a2dp_cid, context->local_seid); } } static void a2dp_demo_timer_start(a2dp_media_sending_context_t * context){ context->max_media_payload_size = a2dp_max_media_payload_size(context->a2dp_cid, context->local_seid); context->sbc_storage_count = 0; context->sbc_ready_to_send = 0; context->streaming = 1; btstack_run_loop_remove_timer(&context->audio_timer); btstack_run_loop_set_timer_handler(&context->audio_timer, a2dp_demo_audio_timeout_handler); btstack_run_loop_set_timer_context(&context->audio_timer, context); btstack_run_loop_set_timer(&context->audio_timer, AUDIO_TIMEOUT_MS); btstack_run_loop_add_timer(&context->audio_timer); } static void a2dp_demo_timer_stop(a2dp_media_sending_context_t * context){ context->time_audio_data_sent = 0; context->acc_num_missed_samples = 0; context->samples_ready = 0; context->streaming = 1; context->sbc_storage_count = 0; context->sbc_ready_to_send = 0; btstack_run_loop_remove_timer(&context->audio_timer); } static void a2dp_source_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ UNUSED(channel); UNUSED(size); uint8_t status; uint8_t local_seid; bd_addr_t address; uint16_t cid; if (packet_type != HCI_EVENT_PACKET) return; #ifndef HAVE_BTSTACK_STDIN if (hci_event_packet_get_type(packet) == BTSTACK_EVENT_STATE){ if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) return; printf("Create AVDTP Source connection to addr %s.\n", bd_addr_to_str(device_addr)); status = a2dp_source_establish_stream(device_addr, media_tracker.local_seid, &media_tracker.a2dp_cid); if (status != ERROR_CODE_SUCCESS){ printf("Could not perform command, status 0x%2x\n", status); } return; } #endif if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return; switch (packet[2]){ case A2DP_SUBEVENT_INCOMING_CONNECTION_ESTABLISHED: // TODO: check incoming cid a2dp_subevent_incoming_connection_established_get_bd_addr(packet, address); cid = a2dp_subevent_incoming_connection_established_get_a2dp_cid(packet); printf("A2DP_SUBEVENT_INCOMING_CONNECTION_ESTABLISHED, cid 0x%02x, media_tracker.a2dp_cid 0x%02x\n", cid, media_tracker.a2dp_cid); if (cid != media_tracker.a2dp_cid) break; media_tracker.connected = 1; printf("A2DP: Incoming connection established: address %s, a2dp cid 0x%02x. Create stream on local seid %d.\n", bd_addr_to_str(address), media_tracker.a2dp_cid, media_tracker.local_seid); status = a2dp_source_establish_stream(device_addr, media_tracker.local_seid, &media_tracker.a2dp_cid); if (status != ERROR_CODE_SUCCESS){ printf("Could not perform command, status 0x%2x\n", status); } break; case A2DP_SUBEVENT_STREAM_ESTABLISHED: media_tracker.connected = 1; a2dp_subevent_stream_established_get_bd_addr(packet, address); status = a2dp_subevent_stream_established_get_status(packet); if (status){ printf("A2DP: Stream establishment failed: status 0x%02x.\n", status); break; } local_seid = a2dp_subevent_stream_established_get_local_seid(packet); if (local_seid != media_tracker.local_seid){ printf("A2DP: Stream establishment failed: wrong local seid %d, expected %d.\n", local_seid, media_tracker.local_seid); break; } media_tracker.a2dp_cid = a2dp_subevent_stream_established_get_a2dp_cid(packet); printf("A2DP: Stream established: address %s, a2dp cid 0x%02x, local seid %d, remote seid %d.\n", bd_addr_to_str(address), media_tracker.a2dp_cid, media_tracker.local_seid, a2dp_subevent_stream_established_get_remote_seid(packet)); printf("Start playing mod, cid 0x%02x.\n", media_tracker.a2dp_cid); data_source = STREAM_MOD; status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); break; case A2DP_SUBEVENT_STREAM_STARTED: play_info.status = AVRCP_PLAYBACK_STATUS_PLAYING; avrcp_target_set_now_playing_info(avrcp_cid, &tracks[data_source], sizeof(tracks)/sizeof(avrcp_track_t)); avrcp_target_set_playback_status(avrcp_cid, AVRCP_PLAYBACK_STATUS_PLAYING); a2dp_demo_timer_start(&media_tracker); printf("A2DP: Stream started.\n"); break; case A2DP_SUBEVENT_STREAMING_CAN_SEND_MEDIA_PACKET_NOW: a2dp_demo_send_media_packet(); break; case A2DP_SUBEVENT_STREAM_SUSPENDED: play_info.status = AVRCP_PLAYBACK_STATUS_PAUSED; avrcp_target_set_playback_status(avrcp_cid, AVRCP_PLAYBACK_STATUS_PAUSED); printf("A2DP: Stream paused.\n"); a2dp_demo_timer_stop(&media_tracker); break; case A2DP_SUBEVENT_STREAM_RELEASED: avrcp_target_set_now_playing_info(avrcp_cid, NULL, sizeof(tracks)/sizeof(avrcp_track_t)); play_info.status = AVRCP_PLAYBACK_STATUS_STOPPED; avrcp_target_set_playback_status(avrcp_cid, AVRCP_PLAYBACK_STATUS_STOPPED); printf("A2DP: Stream released.\n"); a2dp_demo_timer_stop(&media_tracker); break; case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: printf("A2DP: Signaling released.\n"); cid = a2dp_subevent_signaling_connection_released_get_a2dp_cid(packet); if (cid == media_tracker.a2dp_cid) { media_tracker.connected = 0; media_tracker.a2dp_cid = 0; } break; default: printf("A2DP: event 0x%02x is not parsed\n", packet[2]); break; } } static void avrcp_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ UNUSED(channel); UNUSED(size); bd_addr_t event_addr; uint16_t local_cid; uint8_t status = ERROR_CODE_SUCCESS; if (packet_type != HCI_EVENT_PACKET) return; if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return; switch (packet[2]){ case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); // if (avrcp_cid != 0 && avrcp_cid != local_cid) { // printf("AVRCP: Connection failed, expected 0x%02X l2cap cid, received 0x%02X\n", avrcp_cid, local_cid); // return; // } // if (avrcp_cid != local_cid) break; status = avrcp_subevent_connection_established_get_status(packet); if (status != ERROR_CODE_SUCCESS){ printf("AVRCP: Connection failed: status 0x%02x\n", status); return; } avrcp_connected = 1; avrcp_cid = local_cid; avrcp_subevent_connection_established_get_bd_addr(packet, event_addr); printf("AVRCP: connected to %s, avrcp_cid 0x%02x\n", bd_addr_to_str(event_addr), local_cid); avrcp_target_set_now_playing_info(avrcp_cid, NULL, sizeof(tracks)/sizeof(avrcp_track_t)); avrcp_target_set_unit_info(avrcp_cid, AVRCP_SUBUNIT_TYPE_AUDIO, company_id); avrcp_target_set_subunit_info(avrcp_cid, AVRCP_SUBUNIT_TYPE_AUDIO, (uint8_t *)subunit_info, sizeof(subunit_info)); return; } case AVRCP_SUBEVENT_EVENT_IDS_QUERY: status = avrcp_target_supported_events(avrcp_cid, events_num, events, sizeof(events)); break; case AVRCP_SUBEVENT_COMPANY_IDS_QUERY: status = avrcp_target_supported_companies(avrcp_cid, companies_num, companies, sizeof(companies)); break; case AVRCP_SUBEVENT_PLAY_STATUS_QUERY: status = avrcp_target_play_status(avrcp_cid, play_info.song_length_ms, play_info.song_position_ms, play_info.status); break; // case AVRCP_SUBEVENT_NOW_PLAYING_INFO_QUERY: // status = avrcp_target_now_playing_info(avrcp_cid); // break; case AVRCP_SUBEVENT_OPERATION:{ avrcp_operation_id_t operation_id = avrcp_subevent_operation_get_operation_id(packet); if (!media_tracker.connected) break; switch (operation_id){ case AVRCP_OPERATION_ID_PLAY: printf("AVRCP: PLAY\n"); status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); break; case AVRCP_OPERATION_ID_PAUSE: printf("AVRCP: PAUSE\n"); status = a2dp_source_pause_stream(media_tracker.a2dp_cid, media_tracker.local_seid); break; case AVRCP_OPERATION_ID_STOP: printf("AVRCP: STOP\n"); status = a2dp_source_disconnect(media_tracker.a2dp_cid); break; default: return; } break; } case AVRCP_SUBEVENT_CONNECTION_RELEASED: printf("AVRCP: Channel released: avrcp_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); avrcp_cid = 0; return; default: printf("AVRCP: event not parsed %02x\n", packet[2]); break; } if (status != ERROR_CODE_SUCCESS){ printf("Responding to event 0x%02x failed with status 0x%02x\n", packet[2], status); } } #ifdef HAVE_BTSTACK_STDIN static void show_usage(void){ bd_addr_t iut_address; gap_local_bd_addr(iut_address); printf("\n--- Bluetooth A2DP Source/AVRCP Target Demo %s ---\n", bd_addr_to_str(iut_address)); printf("b - AVDTP Source create connection to addr %s\n", device_addr_string); printf("B - AVDTP Source disconnect\n"); printf("c - AVRCP Target create connection to addr %s\n", device_addr_string); printf("C - AVRCP Target disconnect\n"); printf("0 - AVRCP reset now playing info\n"); printf("x - start streaming sine\n"); if (hxcmod_initialized){ printf("z - start streaming '%s'\n", mod_name); } printf("p - pause streaming\n"); printf("\n--- Bluetooth AVRCP Target Commands %s ---\n", bd_addr_to_str(iut_address)); printf("---\n"); } static void stdin_process(char cmd){ uint8_t status = ERROR_CODE_SUCCESS; switch (cmd){ case 'b': status = a2dp_source_establish_stream(device_addr, media_tracker.local_seid, &media_tracker.a2dp_cid); printf(" - Create AVDTP Source connection to addr %s, cid 0x%02x.\n", bd_addr_to_str(device_addr), media_tracker.a2dp_cid); break; case 'B': printf(" - AVDTP Source Disconnect from cid 0x%2x\n", media_tracker.a2dp_cid); status = a2dp_source_disconnect(media_tracker.a2dp_cid); break; case 'c': printf(" - Create AVRCP Target connection to addr %s.\n", bd_addr_to_str(device_addr)); status = avrcp_target_connect(device_addr, &avrcp_cid); break; case 'C': printf(" - AVRCP Target disconnect\n"); status = avrcp_target_disconnect(avrcp_cid); break; case '\n': case '\r': break; case 't': printf("STREAM_PTS_TEST.\n"); data_source = STREAM_PTS_TEST; avrcp_target_set_now_playing_info(avrcp_cid, &tracks[data_source], sizeof(tracks)/sizeof(avrcp_track_t)); if (!media_tracker.connected) break; status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); break; case 'x': avrcp_target_set_now_playing_info(avrcp_cid, &tracks[data_source], sizeof(tracks)/sizeof(avrcp_track_t)); printf("Playing sine.\n"); data_source = STREAM_SINE; if (!media_tracker.connected) break; status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); break; case 'z': avrcp_target_set_now_playing_info(avrcp_cid, &tracks[data_source], sizeof(tracks)/sizeof(avrcp_track_t)); printf("Playing mod.\n"); data_source = STREAM_MOD; if (!media_tracker.connected) break; status = a2dp_source_start_stream(media_tracker.a2dp_cid, media_tracker.local_seid); break; case 'p': if (!media_tracker.connected) break; printf("Pause stream.\n"); status = a2dp_source_pause_stream(media_tracker.a2dp_cid, media_tracker.local_seid); break; case '0': avrcp_target_set_now_playing_info(avrcp_cid, NULL, sizeof(tracks)/sizeof(avrcp_track_t)); printf("Reset now playing info\n"); break; default: show_usage(); return; } if (status != ERROR_CODE_SUCCESS){ printf("Could not perform command, status 0x%2x\n", status); } } #endif int btstack_main(int argc, const char * argv[]); int btstack_main(int argc, const char * argv[]){ (void)argc; (void)argv; int err = a2dp_source_and_avrcp_services_init(); if (err) return err; // turn on! hci_power_control(HCI_POWER_ON); return 0; } /* EXAMPLE_END */