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gecko-dev/dom/bluetooth/bluedroid/BluetoothA2dpManager.cpp

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/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "base/basictypes.h"
#include "BluetoothA2dpManager.h"
#include <hardware/bluetooth.h>
#include <hardware/bt_av.h>
#include <hardware/bt_rc.h>
#include "BluetoothCommon.h"
#include "BluetoothService.h"
#include "BluetoothServiceBluedroid.h"
#include "BluetoothSocket.h"
#include "BluetoothUtils.h"
#include "mozilla/dom/bluetooth/BluetoothTypes.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "MainThreadUtils.h"
#include "nsIObserverService.h"
#include "nsThreadUtils.h"
using namespace mozilla;
USING_BLUETOOTH_NAMESPACE
namespace {
StaticRefPtr<BluetoothA2dpManager> sBluetoothA2dpManager;
bool sInShutdown = false;
static const btav_interface_t* sBtA2dpInterface;
static const btrc_interface_t* sBtAvrcpInterface;
} // anonymous namespace
class SinkPropertyChangedHandler : public nsRunnable
{
public:
SinkPropertyChangedHandler(const BluetoothSignal& aSignal)
: mSignal(aSignal)
{
}
NS_IMETHOD
Run()
{
MOZ_ASSERT(NS_IsMainThread());
BluetoothA2dpManager* a2dp = BluetoothA2dpManager::Get();
NS_ENSURE_TRUE(a2dp, NS_ERROR_FAILURE);
a2dp->HandleSinkPropertyChanged(mSignal);
return NS_OK;
}
private:
BluetoothSignal mSignal;
};
class RequestPlayStatusTask : public nsRunnable
{
public:
RequestPlayStatusTask()
{
MOZ_ASSERT(!NS_IsMainThread());
}
nsresult Run()
{
MOZ_ASSERT(NS_IsMainThread());
BluetoothSignal signal(NS_LITERAL_STRING(REQUEST_MEDIA_PLAYSTATUS_ID),
NS_LITERAL_STRING(KEY_ADAPTER),
InfallibleTArray<BluetoothNamedValue>());
BluetoothService* bs = BluetoothService::Get();
NS_ENSURE_TRUE(bs, NS_ERROR_FAILURE);
bs->DistributeSignal(signal);
return NS_OK;
}
};
class UpdateRegisterNotificationTask : public nsRunnable
{
public:
UpdateRegisterNotificationTask(btrc_event_id_t aEventId, uint32_t aParam)
: mEventId(aEventId)
, mParam(aParam)
{
MOZ_ASSERT(!NS_IsMainThread());
}
nsresult Run()
{
MOZ_ASSERT(NS_IsMainThread());
BluetoothA2dpManager* a2dp = BluetoothA2dpManager::Get();
NS_ENSURE_TRUE(a2dp, NS_OK);
a2dp->UpdateRegisterNotification(mEventId, mParam);
return NS_OK;
}
private:
btrc_event_id_t mEventId;
uint32_t mParam;
};
/*
* This function maps attribute id and returns corresponding values
* Attribute id refers to btrc_media_attr_t in bt_rc.h
*/
static void
ConvertAttributeString(int aAttrId, nsAString& aAttrStr)
{
BluetoothA2dpManager* a2dp = BluetoothA2dpManager::Get();
NS_ENSURE_TRUE_VOID(a2dp);
switch (aAttrId) {
case BTRC_MEDIA_ATTR_TITLE:
a2dp->GetTitle(aAttrStr);
break;
case BTRC_MEDIA_ATTR_ARTIST:
a2dp->GetArtist(aAttrStr);
break;
case BTRC_MEDIA_ATTR_ALBUM:
a2dp->GetAlbum(aAttrStr);
break;
case BTRC_MEDIA_ATTR_TRACK_NUM:
aAttrStr.AppendInt(a2dp->GetMediaNumber());
break;
case BTRC_MEDIA_ATTR_NUM_TRACKS:
aAttrStr.AppendInt(a2dp->GetTotalMediaNumber());
break;
case BTRC_MEDIA_ATTR_GENRE:
// TODO: we currently don't support genre from music player
aAttrStr.Truncate();
break;
case BTRC_MEDIA_ATTR_PLAYING_TIME:
aAttrStr.AppendInt(a2dp->GetDuration());
break;
}
}
class UpdateElementAttrsTask : public nsRunnable
{
public:
UpdateElementAttrsTask(uint8_t aNumAttr, btrc_media_attr_t* aPlayerAttrs)
: mNumAttr(aNumAttr)
, mPlayerAttrs(aPlayerAttrs)
{
MOZ_ASSERT(!NS_IsMainThread());
}
nsresult Run()
{
MOZ_ASSERT(NS_IsMainThread());
btrc_element_attr_val_t* attrs = new btrc_element_attr_val_t[mNumAttr];
for (int i = 0; i < mNumAttr; i++) {
nsAutoString attrText;
attrs[i].attr_id = mPlayerAttrs[i];
ConvertAttributeString(mPlayerAttrs[i], attrText);
strcpy((char *)attrs[i].text, NS_ConvertUTF16toUTF8(attrText).get());
}
NS_ENSURE_TRUE(sBtAvrcpInterface, NS_OK);
sBtAvrcpInterface->get_element_attr_rsp(mNumAttr, attrs);
return NS_OK;
}
private:
uint8_t mNumAttr;
btrc_media_attr_t* mPlayerAttrs;
};
NS_IMETHODIMP
BluetoothA2dpManager::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
MOZ_ASSERT(sBluetoothA2dpManager);
if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
HandleShutdown();
return NS_OK;
}
MOZ_ASSERT(false, "BluetoothA2dpManager got unexpected topic!");
return NS_ERROR_UNEXPECTED;
}
BluetoothA2dpManager::BluetoothA2dpManager()
{
ResetA2dp();
ResetAvrcp();
}
static void
AvStatusToSinkString(btav_connection_state_t aStatus, nsAString& aState)
{
nsAutoString state;
if (aStatus == BTAV_CONNECTION_STATE_DISCONNECTED) {
aState = NS_LITERAL_STRING("disconnected");
} else if (aStatus == BTAV_CONNECTION_STATE_CONNECTING) {
aState = NS_LITERAL_STRING("connecting");
} else if (aStatus == BTAV_CONNECTION_STATE_CONNECTED) {
aState = NS_LITERAL_STRING("connected");
} else if (aStatus == BTAV_CONNECTION_STATE_DISCONNECTING) {
aState = NS_LITERAL_STRING("disconnecting");
} else {
BT_WARNING("Unknown sink state");
}
}
static void
A2dpConnectionStateCallback(btav_connection_state_t aState,
bt_bdaddr_t* aBdAddress)
{
MOZ_ASSERT(!NS_IsMainThread());
nsString remoteDeviceBdAddress;
BdAddressTypeToString(aBdAddress, remoteDeviceBdAddress);
nsString a2dpState;
AvStatusToSinkString(aState, a2dpState);
InfallibleTArray<BluetoothNamedValue> props;
props.AppendElement(
BluetoothNamedValue(NS_LITERAL_STRING("State"), a2dpState));
BluetoothSignal signal(NS_LITERAL_STRING("AudioSink"),
remoteDeviceBdAddress, props);
NS_DispatchToMainThread(new SinkPropertyChangedHandler(signal));
}
static void
A2dpAudioStateCallback(btav_audio_state_t aState,
bt_bdaddr_t* aBdAddress)
{
MOZ_ASSERT(!NS_IsMainThread());
nsString remoteDeviceBdAddress;
BdAddressTypeToString(aBdAddress, remoteDeviceBdAddress);
nsString a2dpState;
if (aState == BTAV_AUDIO_STATE_STARTED) {
a2dpState = NS_LITERAL_STRING("playing");
} else if (aState == BTAV_AUDIO_STATE_STOPPED) {
// for avdtp state stop stream
a2dpState = NS_LITERAL_STRING("connected");
} else if (aState == BTAV_AUDIO_STATE_REMOTE_SUSPEND) {
// for avdtp state suspend stream from remote side
a2dpState = NS_LITERAL_STRING("connected");
}
InfallibleTArray<BluetoothNamedValue> props;
props.AppendElement(
BluetoothNamedValue(NS_LITERAL_STRING("State"), a2dpState));
BluetoothSignal signal(NS_LITERAL_STRING("AudioSink"),
remoteDeviceBdAddress, props);
NS_DispatchToMainThread(new SinkPropertyChangedHandler(signal));
}
/*
* Avrcp 1.3 callbacks
*/
/*
* This function is to request Gaia player application to update
* current play status.
* Callback for play status request
*/
static void
AvrcpGetPlayStatusCallback()
{
MOZ_ASSERT(!NS_IsMainThread());
NS_DispatchToMainThread(new RequestPlayStatusTask());
}
/*
* This function is trying to get element attributes, which request from CT
* Unlike BlueZ only calls UpdateMetaData, bluedroid does not cache meta data
* information, but instead uses callback AvrcpGetElementAttrCallback and
* call get_element_attr_rsp() to reply request.
*
* Callback to fetch the get element attributes of the current song
* aNumAttr: It represents the number of attributes requested in aPlayerAttrs
* aPlayerAttrs: It represents Attribute Ids
*/
static void
AvrcpGetElementAttrCallback(uint8_t aNumAttr, btrc_media_attr_t* aPlayerAttrs)
{
MOZ_ASSERT(!NS_IsMainThread());
NS_DispatchToMainThread(new UpdateElementAttrsTask(aNumAttr, aPlayerAttrs));
}
/*
* Callback for register notification (Play state change/track change/...)
* To reply RegisterNotification INTERIM response
* See AVRCP 1.3 Spec 25.2
* aParam: It only valids if event_id is BTRC_EVT_PLAY_POS_CHANGED,
* which is playback interval time
*/
static void
AvrcpRegisterNotificationCallback(btrc_event_id_t aEventId, uint32_t aParam)
{
MOZ_ASSERT(!NS_IsMainThread());
NS_DispatchToMainThread(new UpdateRegisterNotificationTask(aEventId, aParam));
}
/*
* Player application settings is optional for Avrcp 1.3
* B2G 1.3 currently does not support Player application setting
* related functions. Support Player Setting in the future version
*/
static void
AvrcpListPlayerAppAttributeCallback()
{
MOZ_ASSERT(!NS_IsMainThread());
// TODO: Support avrcp application setting related functions
}
static void
AvrcpListPlayerAppValuesCallback(btrc_player_attr_t aAttrId)
{
MOZ_ASSERT(!NS_IsMainThread());
// TODO: Support avrcp application setting related functions
}
static void
AvrcpGetPlayerAppValueCallback(uint8_t aNumAttr,
btrc_player_attr_t* aPlayerAttrs)
{
MOZ_ASSERT(!NS_IsMainThread());
// TODO: Support avrcp application setting related functions
}
static void
AvrcpGetPlayerAppAttrsTextCallback(uint8_t aNumAttr,
btrc_player_attr_t* PlayerAttrs)
{
MOZ_ASSERT(!NS_IsMainThread());
// TODO: Support avrcp application setting related functions
}
static void
AvrcpGetPlayerAppValuesTextCallback(uint8_t aAttrId, uint8_t aNumVal,
uint8_t* PlayerVals)
{
MOZ_ASSERT(!NS_IsMainThread());
// TODO: Support avrcp application setting related functions
}
static void
AvrcpSetPlayerAppValueCallback(btrc_player_settings_t* aPlayerVals)
{
MOZ_ASSERT(!NS_IsMainThread());
// TODO: Support avrcp application setting related functions
}
static btav_callbacks_t sBtA2dpCallbacks = {
sizeof(sBtA2dpCallbacks),
A2dpConnectionStateCallback,
A2dpAudioStateCallback
};
static btrc_callbacks_t sBtAvrcpCallbacks = {
sizeof(sBtAvrcpCallbacks),
AvrcpGetPlayStatusCallback,
AvrcpListPlayerAppAttributeCallback,
AvrcpListPlayerAppValuesCallback,
AvrcpGetPlayerAppValueCallback,
AvrcpGetPlayerAppAttrsTextCallback,
AvrcpGetPlayerAppValuesTextCallback,
AvrcpSetPlayerAppValueCallback,
AvrcpGetElementAttrCallback,
AvrcpRegisterNotificationCallback
};
/*
* This function will be only called when Bluetooth is turning on.
* It is important to register a2dp callbacks before enable() gets called.
* It is required to register a2dp callbacks before a2dp media task
* starts up.
*/
bool
BluetoothA2dpManager::Init()
{
const bt_interface_t* btInf = GetBluetoothInterface();
NS_ENSURE_TRUE(btInf, false);
sBtA2dpInterface = (btav_interface_t *)btInf->
get_profile_interface(BT_PROFILE_ADVANCED_AUDIO_ID);
NS_ENSURE_TRUE(sBtA2dpInterface, false);
int ret = sBtA2dpInterface->init(&sBtA2dpCallbacks);
if (ret != BT_STATUS_SUCCESS) {
BT_LOGR("Warning: failed to init a2dp module");
return false;
}
sBtAvrcpInterface = (btrc_interface_t *)btInf->
get_profile_interface(BT_PROFILE_AV_RC_ID);
NS_ENSURE_TRUE(sBtAvrcpInterface, false);
ret = sBtAvrcpInterface->init(&sBtAvrcpCallbacks);
if (ret != BT_STATUS_SUCCESS) {
BT_LOGR("Warning: failed to init avrcp module");
return false;
}
return true;
}
BluetoothA2dpManager::~BluetoothA2dpManager()
{
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
NS_ENSURE_TRUE_VOID(obs);
if (NS_FAILED(obs->RemoveObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID))) {
BT_WARNING("Failed to remove shutdown observer!");
}
}
void
BluetoothA2dpManager::ResetA2dp()
{
mA2dpConnected = false;
mSinkState = SinkState::SINK_DISCONNECTED;
mController = nullptr;
}
void
BluetoothA2dpManager::ResetAvrcp()
{
mAvrcpConnected = false;
mDuration = 0;
mMediaNumber = 0;
mTotalMediaCount = 0;
mPosition = 0;
mPlayStatus = ControlPlayStatus::PLAYSTATUS_UNKNOWN;
}
/*
* Static functions
*/
static BluetoothA2dpManager::SinkState
StatusStringToSinkState(const nsAString& aStatus)
{
BluetoothA2dpManager::SinkState state =
BluetoothA2dpManager::SinkState::SINK_UNKNOWN;
if (aStatus.EqualsLiteral("disconnected")) {
state = BluetoothA2dpManager::SinkState::SINK_DISCONNECTED;
} else if (aStatus.EqualsLiteral("connecting")) {
state = BluetoothA2dpManager::SinkState::SINK_CONNECTING;
} else if (aStatus.EqualsLiteral("connected")) {
state = BluetoothA2dpManager::SinkState::SINK_CONNECTED;
} else if (aStatus.EqualsLiteral("playing")) {
state = BluetoothA2dpManager::SinkState::SINK_PLAYING;
} else {
BT_WARNING("Unknown sink state");
}
return state;
}
//static
BluetoothA2dpManager*
BluetoothA2dpManager::Get()
{
MOZ_ASSERT(NS_IsMainThread());
// If sBluetoothA2dpManager already exists, exit early
if (sBluetoothA2dpManager) {
return sBluetoothA2dpManager;
}
// If we're in shutdown, don't create a new instance
NS_ENSURE_FALSE(sInShutdown, nullptr);
// Create a new instance, register, and return
BluetoothA2dpManager* manager = new BluetoothA2dpManager();
NS_ENSURE_TRUE(manager->Init(), nullptr);
sBluetoothA2dpManager = manager;
return sBluetoothA2dpManager;
}
void
BluetoothA2dpManager::HandleShutdown()
{
MOZ_ASSERT(NS_IsMainThread());
sInShutdown = true;
Disconnect(nullptr);
sBluetoothA2dpManager = nullptr;
}
void
BluetoothA2dpManager::Connect(const nsAString& aDeviceAddress,
BluetoothProfileController* aController)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aDeviceAddress.IsEmpty());
MOZ_ASSERT(aController && !mController);
BluetoothService* bs = BluetoothService::Get();
if (!bs || sInShutdown) {
aController->OnConnect(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
return;
}
if (mA2dpConnected) {
aController->OnConnect(NS_LITERAL_STRING(ERR_ALREADY_CONNECTED));
return;
}
mDeviceAddress = aDeviceAddress;
mController = aController;
bt_bdaddr_t remoteAddress;
StringToBdAddressType(aDeviceAddress, &remoteAddress);
NS_ENSURE_TRUE_VOID(sBtA2dpInterface);
NS_ENSURE_TRUE_VOID(BT_STATUS_SUCCESS ==
sBtA2dpInterface->connect(&remoteAddress));
}
void
BluetoothA2dpManager::Disconnect(BluetoothProfileController* aController)
{
BluetoothService* bs = BluetoothService::Get();
if (!bs) {
if (aController) {
aController->OnDisconnect(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
}
return;
}
if (!mA2dpConnected) {
if (aController) {
aController->OnDisconnect(NS_LITERAL_STRING(ERR_ALREADY_DISCONNECTED));
}
return;
}
MOZ_ASSERT(!mDeviceAddress.IsEmpty());
MOZ_ASSERT(!mController);
mController = aController;
bt_bdaddr_t remoteAddress;
StringToBdAddressType(mDeviceAddress, &remoteAddress);
if (sBtA2dpInterface) {
NS_ENSURE_TRUE_VOID(BT_STATUS_SUCCESS ==
sBtA2dpInterface->disconnect(&remoteAddress));
}
}
void
BluetoothA2dpManager::OnConnect(const nsAString& aErrorStr)
{
MOZ_ASSERT(NS_IsMainThread());
/**
* On the one hand, notify the controller that we've done for outbound
* connections. On the other hand, we do nothing for inbound connections.
*/
NS_ENSURE_TRUE_VOID(mController);
nsRefPtr<BluetoothProfileController> controller = mController.forget();
controller->OnConnect(aErrorStr);
}
void
BluetoothA2dpManager::OnDisconnect(const nsAString& aErrorStr)
{
MOZ_ASSERT(NS_IsMainThread());
/**
* On the one hand, notify the controller that we've done for outbound
* connections. On the other hand, we do nothing for inbound connections.
*/
NS_ENSURE_TRUE_VOID(mController);
nsRefPtr<BluetoothProfileController> controller = mController.forget();
controller->OnDisconnect(aErrorStr);
}
/* HandleSinkPropertyChanged update sink state in A2dp
*
* Possible values: "disconnected", "connecting", "connected", "playing"
*
* 1. "disconnected" -> "connecting"
* Either an incoming or outgoing connection attempt ongoing
* 2. "connecting" -> "disconnected"
* Connection attempt failed
* 3. "connecting" -> "connected"
* Successfully connected
* 4. "connected" -> "playing"
* Audio stream active
* 5. "playing" -> "connected"
* Audio stream suspended
* 6. "connected" -> "disconnected"
* "playing" -> "disconnected"
* Disconnected from local or the remote device
*/
void
BluetoothA2dpManager::HandleSinkPropertyChanged(const BluetoothSignal& aSignal)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aSignal.value().type() ==
BluetoothValue::TArrayOfBluetoothNamedValue);
const nsString& address = aSignal.path();
const InfallibleTArray<BluetoothNamedValue>& arr =
aSignal.value().get_ArrayOfBluetoothNamedValue();
MOZ_ASSERT(arr.Length() == 1);
/**
* There are three properties:
* - "State": a string
* - "Connected": a boolean value
* - "Playing": a boolean value
*
* Note that only "State" is handled in this function.
*/
const nsString& name = arr[0].name();
NS_ENSURE_TRUE_VOID(name.EqualsLiteral("State"));
const BluetoothValue& value = arr[0].value();
MOZ_ASSERT(value.type() == BluetoothValue::TnsString);
SinkState newState = StatusStringToSinkState(value.get_nsString());
NS_ENSURE_TRUE_VOID((newState != SinkState::SINK_UNKNOWN) &&
(newState != mSinkState));
SinkState prevState = mSinkState;
mSinkState = newState;
switch(mSinkState) {
case SinkState::SINK_CONNECTING:
// case 1: Either an incoming or outgoing connection attempt ongoing
MOZ_ASSERT(prevState == SinkState::SINK_DISCONNECTED);
break;
case SinkState::SINK_PLAYING:
// case 4: Audio stream active
MOZ_ASSERT(prevState == SinkState::SINK_CONNECTED);
break;
case SinkState::SINK_CONNECTED:
// case 5: Audio stream suspended
if (prevState == SinkState::SINK_PLAYING ||
prevState == SinkState::SINK_CONNECTED) {
break;
}
// case 3: Successfully connected
mA2dpConnected = true;
mDeviceAddress = address;
NotifyConnectionStatusChanged();
OnConnect(EmptyString());
break;
case SinkState::SINK_DISCONNECTED:
// case 2: Connection attempt failed
if (prevState == SinkState::SINK_CONNECTING) {
OnConnect(NS_LITERAL_STRING("A2dpConnectionError"));
break;
}
// case 6: Disconnected from the remote device
MOZ_ASSERT(prevState == SinkState::SINK_CONNECTED ||
prevState == SinkState::SINK_PLAYING) ;
mA2dpConnected = false;
NotifyConnectionStatusChanged();
mDeviceAddress.Truncate();
OnDisconnect(EmptyString());
break;
default:
break;
}
}
void
BluetoothA2dpManager::NotifyConnectionStatusChanged()
{
MOZ_ASSERT(NS_IsMainThread());
// Notify Gecko observers
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
NS_ENSURE_TRUE_VOID(obs);
if (NS_FAILED(obs->NotifyObservers(this,
BLUETOOTH_A2DP_STATUS_CHANGED_ID,
mDeviceAddress.get()))) {
BT_WARNING("Failed to notify bluetooth-a2dp-status-changed observsers!");
}
// Dispatch an event of status change
DispatchStatusChangedEvent(
NS_LITERAL_STRING(A2DP_STATUS_CHANGED_ID), mDeviceAddress, mA2dpConnected);
}
void
BluetoothA2dpManager::OnGetServiceChannel(const nsAString& aDeviceAddress,
const nsAString& aServiceUuid,
int aChannel)
{
}
void
BluetoothA2dpManager::OnUpdateSdpRecords(const nsAString& aDeviceAddress)
{
}
void
BluetoothA2dpManager::GetAddress(nsAString& aDeviceAddress)
{
aDeviceAddress = mDeviceAddress;
}
bool
BluetoothA2dpManager::IsConnected()
{
return mA2dpConnected;
}
/*
* In bluedroid stack case, there is no interface to know exactly
* avrcp connection status. All connection are managed by bluedroid stack.
*/
void
BluetoothA2dpManager::SetAvrcpConnected(bool aConnected)
{
mAvrcpConnected = aConnected;
if (!aConnected) {
ResetAvrcp();
}
}
bool
BluetoothA2dpManager::IsAvrcpConnected()
{
return mAvrcpConnected;
}
/*
* This function only updates meta data in BluetoothA2dpManager
* Send "Get Element Attributes response" in AvrcpGetElementAttrCallback
*/
void
BluetoothA2dpManager::UpdateMetaData(const nsAString& aTitle,
const nsAString& aArtist,
const nsAString& aAlbum,
uint32_t aMediaNumber,
uint32_t aTotalMediaCount,
uint32_t aDuration)
{
MOZ_ASSERT(NS_IsMainThread());
NS_ENSURE_TRUE_VOID(sBtAvrcpInterface);
// Send track changed and position changed if track num is not the same.
// See also AVRCP 1.3 Spec 5.4.2
if (mMediaNumber != aMediaNumber &&
mTrackChangedNotifyType == BTRC_NOTIFICATION_TYPE_INTERIM) {
btrc_register_notification_t param;
// convert to network big endian format
// since track stores as uint8[8]
// 56 = 8 * (BTRC_UID_SIZE -1)
for (int i = 0; i < BTRC_UID_SIZE; ++i) {
param.track[i] = (aMediaNumber >> (56 - 8 * i));
}
mTrackChangedNotifyType = BTRC_NOTIFICATION_TYPE_CHANGED;
sBtAvrcpInterface->register_notification_rsp(BTRC_EVT_TRACK_CHANGE,
BTRC_NOTIFICATION_TYPE_CHANGED,
&param);
if (mPlayPosChangedNotifyType == BTRC_NOTIFICATION_TYPE_INTERIM) {
param.song_pos = mPosition;
// EVENT_PLAYBACK_POS_CHANGED shall be notified if changed current track
mPlayPosChangedNotifyType = BTRC_NOTIFICATION_TYPE_CHANGED;
sBtAvrcpInterface->register_notification_rsp(
BTRC_EVT_PLAY_POS_CHANGED,
BTRC_NOTIFICATION_TYPE_CHANGED,
&param);
}
}
mTitle.Assign(aTitle);
mArtist.Assign(aArtist);
mAlbum.Assign(aAlbum);
mMediaNumber = aMediaNumber;
mTotalMediaCount = aTotalMediaCount;
mDuration = aDuration;
}
/*
* This function is to reply AvrcpGetPlayStatusCallback (play-status-request)
* from media player application (Gaia side)
*/
void
BluetoothA2dpManager::UpdatePlayStatus(uint32_t aDuration,
uint32_t aPosition,
ControlPlayStatus aPlayStatus)
{
MOZ_ASSERT(NS_IsMainThread());
NS_ENSURE_TRUE_VOID(sBtAvrcpInterface);
// when play status changed, send both play status and position
if (mPlayStatus != aPlayStatus &&
mPlayStatusChangedNotifyType == BTRC_NOTIFICATION_TYPE_INTERIM) {
btrc_register_notification_t param;
param.play_status = (btrc_play_status_t)aPlayStatus;
mPlayStatusChangedNotifyType = BTRC_NOTIFICATION_TYPE_CHANGED;
sBtAvrcpInterface->register_notification_rsp(BTRC_EVT_PLAY_STATUS_CHANGED,
BTRC_NOTIFICATION_TYPE_CHANGED,
&param);
}
if (mPosition != aPosition &&
mPlayPosChangedNotifyType == BTRC_NOTIFICATION_TYPE_INTERIM) {
btrc_register_notification_t param;
param.song_pos = aPosition;
mPlayPosChangedNotifyType = BTRC_NOTIFICATION_TYPE_CHANGED;
sBtAvrcpInterface->register_notification_rsp(BTRC_EVT_PLAY_POS_CHANGED,
BTRC_NOTIFICATION_TYPE_CHANGED,
&param);
}
sBtAvrcpInterface->get_play_status_rsp((btrc_play_status_t)aPlayStatus,
aDuration, aPosition);
mDuration = aDuration;
mPosition = aPosition;
mPlayStatus = aPlayStatus;
}
/*
* This function handles RegisterNotification request from
* AvrcpRegisterNotificationCallback, which updates current
* track/status/position status.
*
* aParam is only valid when position changed
*/
void
BluetoothA2dpManager::UpdateRegisterNotification(int aEventId, int aParam)
{
MOZ_ASSERT(NS_IsMainThread());
NS_ENSURE_TRUE_VOID(sBtAvrcpInterface);
btrc_register_notification_t param;
switch (aEventId) {
case BTRC_EVT_PLAY_STATUS_CHANGED:
mPlayPosChangedNotifyType = BTRC_NOTIFICATION_TYPE_INTERIM;
param.play_status = (btrc_play_status_t)mPlayStatus;
break;
case BTRC_EVT_TRACK_CHANGE:
mTrackChangedNotifyType = BTRC_NOTIFICATION_TYPE_INTERIM;
// needs to convert to network big endian format since track stores
// as uint8[8]. 56 = 8 * (BTRC_UID_SIZE -1)
for (int i = 0; i < BTRC_UID_SIZE; ++i) {
param.track[i] = (mMediaNumber >> (56 - 8 * i));
}
break;
case BTRC_EVT_PLAY_POS_CHANGED:
mPlayPosChangedNotifyType = BTRC_NOTIFICATION_TYPE_INTERIM;
param.song_pos = mPosition;
mPlaybackInterval = aParam;
break;
default:
break;
}
sBtAvrcpInterface->register_notification_rsp((btrc_event_id_t)aEventId,
BTRC_NOTIFICATION_TYPE_INTERIM,
&param);
}
void
BluetoothA2dpManager::GetAlbum(nsAString& aAlbum)
{
aAlbum.Assign(mAlbum);
}
uint32_t
BluetoothA2dpManager::GetDuration()
{
return mDuration;
}
ControlPlayStatus
BluetoothA2dpManager::GetPlayStatus()
{
return mPlayStatus;
}
uint32_t
BluetoothA2dpManager::GetPosition()
{
return mPosition;
}
uint32_t
BluetoothA2dpManager::GetMediaNumber()
{
return mMediaNumber;
}
uint32_t
BluetoothA2dpManager::GetTotalMediaNumber()
{
return mTotalMediaCount;
}
void
BluetoothA2dpManager::GetTitle(nsAString& aTitle)
{
aTitle.Assign(mTitle);
}
void
BluetoothA2dpManager::GetArtist(nsAString& aArtist)
{
aArtist.Assign(mArtist);
}
NS_IMPL_ISUPPORTS1(BluetoothA2dpManager, nsIObserver)
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