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//
// Copyright 2017 Google, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "service/avrcp_control.h"
#include <cerrno>
#include <climits>
#include <string>
#include <base/logging.h>
#include <base/memory/ptr_util.h>
#include <base/strings/string_number_conversions.h>
#include "service/logging_helpers.h"
#include "stack/include/avrc_defs.h"
namespace bluetooth {
AvrcpControl::AvrcpControl(const Uuid& uuid, int control_id)
: app_identifier_(uuid), control_id_(control_id) {
hal::BluetoothAvrcpInterface::Get()->AddControlObserver(this);
}
AvrcpControl::~AvrcpControl() {
hal::BluetoothAvrcpInterface::Get()->RemoveControlObserver(this);
}
const Uuid& AvrcpControl::GetAppIdentifier() const { return app_identifier_; }
int AvrcpControl::GetInstanceId() const { return control_id_; }
void AvrcpControl::SetDelegate(Delegate* delegate) {
std::lock_guard<std::mutex> lock(delegate_mutex_);
delegate_ = delegate;
}
bool AvrcpControl::Enable() {
std::lock_guard<std::mutex> lock(mutex_);
return hal::BluetoothAvrcpInterface::Get()->AvrcpControlEnable();
}
void AvrcpControl::Disable() {
std::lock_guard<std::mutex> lock(mutex_);
hal::BluetoothAvrcpInterface::Get()->AvrcpControlDisable();
}
bool AvrcpControl::SendPassThroughCommand(const std::string& device_address,
uint8_t key_code, bool key_pressed) {
RawAddress addr;
if (!RawAddress::FromString(device_address, addr)) {
LOG(ERROR) << "Invalid device address given: " << device_address;
return false;
}
uint8_t key_state = key_pressed ? AVRC_STATE_PRESS : AVRC_STATE_RELEASE;
bt_status_t status;
{
std::lock_guard<std::mutex> lock(mutex_);
status = hal::BluetoothAvrcpInterface::Get()
->GetControlHALInterface()
->send_pass_through_cmd(addr, key_code, key_state);
}
if (status != BT_STATUS_SUCCESS) {
LOG(ERROR) << "Failed to send passthrough command";
return false;
}
return true;
}
bool AvrcpControl::SetAbsVolumeResponse(const std::string& device_address,
int32_t abs_vol, int32_t label) {
RawAddress addr;
if (!RawAddress::FromString(device_address, addr)) {
LOG(ERROR) << "Invalid device address given: " << device_address;
return false;
}
bt_status_t status;
{
std::lock_guard<std::mutex> lock(mutex_);
status = hal::BluetoothAvrcpInterface::Get()
->GetControlHALInterface()
->set_volume_rsp(addr, abs_vol, label);
}
if (status != BT_STATUS_SUCCESS) {
LOG(ERROR) << "Failed to send set absolute volume response";
return false;
}
return true;
}
bool AvrcpControl::RegisterForAbsVolumeCallbackResponse(
const std::string& device_address, int32_t response_type, int32_t abs_vol,
int32_t label) {
RawAddress addr;
if (!RawAddress::FromString(device_address, addr)) {
LOG(ERROR) << "Invalid device address given: " << device_address;
return false;
}
bt_status_t status;
{
std::lock_guard<std::mutex> lock(mutex_);
status = hal::BluetoothAvrcpInterface::Get()
->GetControlHALInterface()
->register_abs_vol_rsp(
addr, static_cast<btrc_notification_type_t>(response_type),
abs_vol, label);
}
if (status != BT_STATUS_SUCCESS) {
LOG(ERROR)
<< "Failed to send send register for absolute volume change callback";
return false;
}
return true;
}
void AvrcpControl::ConnectionStateCallback(bool rc_connect, bool bt_connect,
const RawAddress& bd_addr) {
std::string device_address = BtAddrString(&bd_addr);
std::lock_guard<std::mutex> lock(delegate_mutex_);
if (delegate_)
delegate_->OnConnectionState(rc_connect, bt_connect, device_address);
}
void AvrcpControl::CtrlSetabsvolCmdCallback(const RawAddress& bd_addr,
uint8_t abs_vol, uint8_t label) {
std::string device_address = BtAddrString(&bd_addr);
std::lock_guard<std::mutex> lock(delegate_mutex_);
if (delegate_)
delegate_->OnSetAbsVolumeRequest(device_address, abs_vol, label);
}
void AvrcpControl::CtrlRegisternotificationAbsVolCallback(
const RawAddress& bd_addr, uint8_t label) {
std::string device_address = BtAddrString(&bd_addr);
std::lock_guard<std::mutex> lock(delegate_mutex_);
if (delegate_)
delegate_->OnRegisterForAbsVolumeCallbackRequest(device_address, label);
}
void AvrcpControl::CtrlTrackChangedCallback(const RawAddress& bd_addr,
uint8_t num_attr,
btrc_element_attr_val_t* p_attrs) {
std::string device_address = BtAddrString(&bd_addr);
std::string title;
std::string artist;
std::string album;
std::string genre;
int track_num = -1;
int num_tracks = -1;
int play_time = -1;
for (size_t i = 0; i < num_attr; ++i) {
auto attr_text = reinterpret_cast<char*>(p_attrs[i].text);
switch (p_attrs[i].attr_id) {
case BTRC_MEDIA_ATTR_ID_TITLE:
title = attr_text;
break;
case BTRC_MEDIA_ATTR_ID_ARTIST:
artist = attr_text;
break;
case BTRC_MEDIA_ATTR_ID_ALBUM:
album = attr_text;
break;
case BTRC_MEDIA_ATTR_ID_TRACK_NUM:
if (!base::StringToInt(attr_text, &track_num)) {
LOG(ERROR) << "Failed to parse track number";
}
break;
case BTRC_MEDIA_ATTR_ID_NUM_TRACKS:
if (!base::StringToInt(attr_text, &num_tracks)) {
LOG(ERROR) << "Failed to parse number of tracks";
}
break;
case BTRC_MEDIA_ATTR_ID_GENRE:
genre = attr_text;
break;
case BTRC_MEDIA_ATTR_ID_PLAYING_TIME:
if (!base::StringToInt(attr_text, &play_time)) {
LOG(ERROR) << "Failed to parse playing time";
}
break;
default:
NOTREACHED();
}
}
const AvrcpMediaAttr attr(title, artist, album, genre, track_num, num_tracks,
play_time);
std::lock_guard<std::mutex> lock(delegate_mutex_);
if (delegate_) delegate_->OnTrackChanged(device_address, attr);
}
// AvrcpControlFactory implementation
// ========================================================
AvrcpControlFactory::AvrcpControlFactory() = default;
AvrcpControlFactory::~AvrcpControlFactory() = default;
bool AvrcpControlFactory::RegisterInstance(const Uuid& uuid,
const RegisterCallback& callback) {
VLOG(1) << __func__ << " - Uuid: " << uuid.ToString();
int control_id = next_control_id_++;
std::unique_ptr<AvrcpControl> hf_client(new AvrcpControl(uuid, control_id));
callback(BLE_STATUS_SUCCESS, uuid, std::move(hf_client));
return true;
}
} // namespace bluetooth
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