// Copyright (c) 2017-2021, Mudita Sp. z.o.o. All rights reserved.
// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
#include "AVRCP.hpp"
#include <service-bluetooth/Constants.hpp>
#include <service-bluetooth/messages/AudioVolume.hpp>
namespace bluetooth
{
AVRCP::PlaybackStatusInfo AVRCP::playInfo;
int AVRCP::currentTrackIndex;
MediaContext AVRCP::mediaTracker;
std::array<uint8_t, 200> AVRCP::sdpTargetServiceBuffer;
std::array<uint8_t, 200> AVRCP::sdpControllerServiceBuffer;
sys::Service *AVRCP::ownerService = nullptr;
void AVRCP::packetHandler(uint8_t packetType, uint16_t channel, uint8_t *packet, uint16_t size)
{
bd_addr_t event_addr;
uint16_t local_cid;
uint8_t status = ERROR_CODE_SUCCESS;
if (packetType != 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);
status = avrcp_subevent_connection_established_get_status(packet);
if (status != ERROR_CODE_SUCCESS) {
LOG_INFO("AVRCP: Connection failed, local cid 0x%02x, status 0x%02x\n", local_cid, status);
return;
}
AVRCP::mediaTracker.avrcp_cid = local_cid;
avrcp_subevent_connection_established_get_bd_addr(packet, event_addr);
avrcp_target_set_now_playing_info(
AVRCP::mediaTracker.avrcp_cid, NULL, sizeof(AVRCP::tracks) / sizeof(avrcp_track_t));
avrcp_target_set_unit_info(AVRCP::mediaTracker.avrcp_cid, AVRCP_SUBUNIT_TYPE_AUDIO, AVRCP::companyId);
avrcp_target_set_subunit_info(AVRCP::mediaTracker.avrcp_cid,
AVRCP_SUBUNIT_TYPE_AUDIO,
(uint8_t *)AVRCP::subunitInfo,
sizeof(AVRCP::subunitInfo));
avrcp_controller_get_supported_events(AVRCP::mediaTracker.avrcp_cid);
LOG_INFO("AVRCP: Channel successfully opened: A2DP::mediaTracker.avrcp_cid 0x%02x\n",
AVRCP::mediaTracker.avrcp_cid);
return;
case AVRCP_SUBEVENT_CONNECTION_RELEASED:
LOG_INFO("AVRCP Target: Disconnected, avrcp_cid 0x%02x\n",
avrcp_subevent_connection_released_get_avrcp_cid(packet));
AVRCP::mediaTracker.avrcp_cid = 0;
return;
default:
break;
}
if (status != ERROR_CODE_SUCCESS) {
LOG_INFO("Responding to event 0x%02x failed with status 0x%02x\n", packet[2], status);
}
}
void AVRCP::targetPacketHandler(uint8_t packetType,
[[maybe_unused]] uint16_t channel,
uint8_t *packet,
[[maybe_unused]] uint16_t size)
{
uint8_t status = ERROR_CODE_SUCCESS;
if (packetType != HCI_EVENT_PACKET) {
return;
}
if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) {
return;
}
switch (packet[2]) {
case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED:
AVRCP::mediaTracker.volume = avrcp_subevent_notification_volume_changed_get_absolute_volume(packet);
LOG_INFO("AVRCP Target: Volume set to %d%% (%d)\n",
AVRCP::mediaTracker.volume * 127 / 100,
AVRCP::mediaTracker.volume);
break;
case AVRCP_SUBEVENT_EVENT_IDS_QUERY:
status = avrcp_target_supported_events(AVRCP::mediaTracker.avrcp_cid,
AVRCP::eventsNum,
const_cast<uint8_t *>(AVRCP::events),
sizeof(AVRCP::events));
break;
case AVRCP_SUBEVENT_COMPANY_IDS_QUERY:
status = avrcp_target_supported_companies(AVRCP::mediaTracker.avrcp_cid,
AVRCP::companiesNum,
const_cast<uint8_t *>(AVRCP::companies),
sizeof(AVRCP::companies));
break;
case AVRCP_SUBEVENT_PLAY_STATUS_QUERY:
status = avrcp_target_play_status(AVRCP::mediaTracker.avrcp_cid,
AVRCP::playInfo.song_length_ms,
AVRCP::playInfo.song_position_ms,
AVRCP::playInfo.status);
break;
case AVRCP_SUBEVENT_OPERATION: {
auto operation_id = (avrcp_operation_id_t)avrcp_subevent_operation_get_operation_id(packet);
switch (operation_id) {
case AVRCP_OPERATION_ID_PLAY:
LOG_INFO("AVRCP Target: PLAY\n");
status = a2dp_source_start_stream(AVRCP::mediaTracker.a2dp_cid, AVRCP::mediaTracker.local_seid);
break;
case AVRCP_OPERATION_ID_PAUSE:
LOG_INFO("AVRCP Target: PAUSE\n");
status = a2dp_source_pause_stream(AVRCP::mediaTracker.a2dp_cid, AVRCP::mediaTracker.local_seid);
break;
case AVRCP_OPERATION_ID_STOP:
LOG_INFO("AVRCP Target: STOP\n");
status = a2dp_source_disconnect(AVRCP::mediaTracker.a2dp_cid);
break;
default:
LOG_INFO("AVRCP Target: operation 0x%2x is not handled\n", operation_id);
return;
}
break;
}
default:
break;
}
if (status != ERROR_CODE_SUCCESS) {
LOG_INFO("Responding to event 0x%02x failed with status 0x%02x\n", packet[2], status);
}
}
void AVRCP::controllerPacketHandler(uint8_t packetType,
[[maybe_unused]] uint16_t channel,
[[maybe_unused]] uint8_t *packet,
uint16_t size)
{
uint8_t status = 0xFF;
if (packetType != HCI_EVENT_PACKET) {
return;
}
if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) {
return;
}
status = packet[5];
if (AVRCP::mediaTracker.avrcp_cid == 0u) {
return;
}
// ignore INTERIM status
if (status == AVRCP_CTYPE_RESPONSE_INTERIM) {
return;
}
switch (packet[2]) {
case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: {
const auto volume = avrcp_subevent_notification_volume_changed_get_absolute_volume(packet);
auto &busProxy = AVRCP::ownerService->bus;
busProxy.sendUnicast(std::make_shared<message::bluetooth::AudioVolume>(volume), service::name::bluetooth);
LOG_INFO("AVRCP Controller: notification absolute volume changed %d %%\n", volume * 100 / 127);
} break;
case AVRCP_SUBEVENT_GET_CAPABILITY_EVENT_ID:
LOG_INFO("Remote supports EVENT_ID 0x%02x\n", avrcp_subevent_get_capability_event_id_get_event_id(packet));
break;
case AVRCP_SUBEVENT_GET_CAPABILITY_EVENT_ID_DONE:
LOG_INFO("automatically enable notifications\n");
avrcp_controller_enable_notification(AVRCP::mediaTracker.avrcp_cid,
AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED);
break;
default:
break;
}
}
void AVRCP::init(sys::Service *service)
{
AVRCP::ownerService = service;
// Initialize AVRCP Service.
avrcp_init();
avrcp_register_packet_handler(&packetHandler);
// Initialize AVRCP Target.
avrcp_target_init();
avrcp_target_register_packet_handler(&targetPacketHandler);
// Initialize AVRCP Controller
avrcp_controller_init();
avrcp_controller_register_packet_handler(&controllerPacketHandler);
}
} // namespace bluetooth