gecko/dom/bluetooth2/bluedroid/BluetoothDaemonA2dpInterface.cpp

430 lines
11 KiB
C++

/* -*- 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 "BluetoothDaemonA2dpInterface.h"
#include "BluetoothDaemonSetupInterface.h"
#include "mozilla/unused.h"
BEGIN_BLUETOOTH_NAMESPACE
//
// A2DP module
//
BluetoothA2dpNotificationHandler*
BluetoothDaemonA2dpModule::sNotificationHandler;
void
BluetoothDaemonA2dpModule::SetNotificationHandler(
BluetoothA2dpNotificationHandler* aNotificationHandler)
{
sNotificationHandler = aNotificationHandler;
}
nsresult
BluetoothDaemonA2dpModule::Send(BluetoothDaemonPDU* aPDU,
BluetoothA2dpResultHandler* aRes)
{
aRes->AddRef(); // Keep reference for response
return Send(aPDU, static_cast<void*>(aRes));
}
void
BluetoothDaemonA2dpModule::HandleSvc(const BluetoothDaemonPDUHeader& aHeader,
BluetoothDaemonPDU& aPDU, void* aUserData)
{
static void (BluetoothDaemonA2dpModule::* const HandleOp[])(
const BluetoothDaemonPDUHeader&, BluetoothDaemonPDU&, void*) = {
INIT_ARRAY_AT(0, &BluetoothDaemonA2dpModule::HandleRsp),
INIT_ARRAY_AT(1, &BluetoothDaemonA2dpModule::HandleNtf),
};
MOZ_ASSERT(!NS_IsMainThread());
// negate twice to map bit to 0/1
unsigned int isNtf = !!(aHeader.mOpcode & 0x80);
(this->*(HandleOp[isNtf]))(aHeader, aPDU, aUserData);
}
// Commands
//
nsresult
BluetoothDaemonA2dpModule::ConnectCmd(
const nsAString& aRemoteAddr, BluetoothA2dpResultHandler* aRes)
{
MOZ_ASSERT(NS_IsMainThread());
nsAutoPtr<BluetoothDaemonPDU> pdu(new BluetoothDaemonPDU(SERVICE_ID,
OPCODE_CONNECT,
6)); // Address
nsresult rv = PackPDU(
PackConversion<nsAString, BluetoothAddress>(aRemoteAddr), *pdu);
if (NS_FAILED(rv)) {
return rv;
}
rv = Send(pdu, aRes);
if (NS_FAILED(rv)) {
return rv;
}
unused << pdu.forget();
return NS_OK;
}
nsresult
BluetoothDaemonA2dpModule::DisconnectCmd(
const nsAString& aRemoteAddr, BluetoothA2dpResultHandler* aRes)
{
MOZ_ASSERT(NS_IsMainThread());
nsAutoPtr<BluetoothDaemonPDU> pdu(new BluetoothDaemonPDU(SERVICE_ID,
OPCODE_DISCONNECT,
6)); // Address
nsresult rv = PackPDU(
PackConversion<nsAString, BluetoothAddress>(aRemoteAddr), *pdu);
if (NS_FAILED(rv)) {
return rv;
}
rv = Send(pdu, aRes);
if (NS_FAILED(rv)) {
return rv;
}
unused << pdu.forget();
return NS_OK;
}
// Responses
//
void
BluetoothDaemonA2dpModule::ErrorRsp(
const BluetoothDaemonPDUHeader& aHeader,
BluetoothDaemonPDU& aPDU, BluetoothA2dpResultHandler* aRes)
{
ErrorRunnable::Dispatch(
aRes, &BluetoothA2dpResultHandler::OnError, UnpackPDUInitOp(aPDU));
}
void
BluetoothDaemonA2dpModule::ConnectRsp(
const BluetoothDaemonPDUHeader& aHeader, BluetoothDaemonPDU& aPDU,
BluetoothA2dpResultHandler* aRes)
{
ResultRunnable::Dispatch(
aRes, &BluetoothA2dpResultHandler::Connect, UnpackPDUInitOp(aPDU));
}
void
BluetoothDaemonA2dpModule::DisconnectRsp(
const BluetoothDaemonPDUHeader& aHeader, BluetoothDaemonPDU& aPDU,
BluetoothA2dpResultHandler* aRes)
{
ResultRunnable::Dispatch(
aRes, &BluetoothA2dpResultHandler::Disconnect, UnpackPDUInitOp(aPDU));
}
void
BluetoothDaemonA2dpModule::HandleRsp(
const BluetoothDaemonPDUHeader& aHeader, BluetoothDaemonPDU& aPDU,
void* aUserData)
{
static void (BluetoothDaemonA2dpModule::* const HandleRsp[])(
const BluetoothDaemonPDUHeader&,
BluetoothDaemonPDU&,
BluetoothA2dpResultHandler*) = {
INIT_ARRAY_AT(OPCODE_ERROR,
&BluetoothDaemonA2dpModule::ErrorRsp),
INIT_ARRAY_AT(OPCODE_CONNECT,
&BluetoothDaemonA2dpModule::ConnectRsp),
INIT_ARRAY_AT(OPCODE_DISCONNECT,
&BluetoothDaemonA2dpModule::DisconnectRsp),
};
MOZ_ASSERT(!NS_IsMainThread()); // I/O thread
if (NS_WARN_IF(!(aHeader.mOpcode < MOZ_ARRAY_LENGTH(HandleRsp))) ||
NS_WARN_IF(!HandleRsp[aHeader.mOpcode])) {
return;
}
nsRefPtr<BluetoothA2dpResultHandler> res =
already_AddRefed<BluetoothA2dpResultHandler>(
static_cast<BluetoothA2dpResultHandler*>(aUserData));
if (!res) {
return; // Return early if no result handler has been set for response
}
(this->*(HandleRsp[aHeader.mOpcode]))(aHeader, aPDU, res);
}
// Notifications
//
// Returns the current notification handler to a notification runnable
class BluetoothDaemonA2dpModule::NotificationHandlerWrapper MOZ_FINAL
{
public:
typedef BluetoothA2dpNotificationHandler ObjectType;
static ObjectType* GetInstance()
{
MOZ_ASSERT(NS_IsMainThread());
return sNotificationHandler;
}
};
// Init operator class for ConnectionStateNotification
class BluetoothDaemonA2dpModule::ConnectionStateInitOp MOZ_FINAL
: private PDUInitOp
{
public:
ConnectionStateInitOp(BluetoothDaemonPDU& aPDU)
: PDUInitOp(aPDU)
{ }
nsresult
operator () (BluetoothA2dpConnectionState& aArg1, nsString& aArg2) const
{
BluetoothDaemonPDU& pdu = GetPDU();
/* Read state */
nsresult rv = UnpackPDU(pdu, aArg1);
if (NS_FAILED(rv)) {
return rv;
}
/* Read address */
rv = UnpackPDU(
pdu, UnpackConversion<BluetoothAddress, nsAString>(aArg2));
if (NS_FAILED(rv)) {
return rv;
}
WarnAboutTrailingData();
return NS_OK;
}
};
void
BluetoothDaemonA2dpModule::ConnectionStateNtf(
const BluetoothDaemonPDUHeader& aHeader, BluetoothDaemonPDU& aPDU)
{
ConnectionStateNotification::Dispatch(
&BluetoothA2dpNotificationHandler::ConnectionStateNotification,
ConnectionStateInitOp(aPDU));
}
// Init operator class for AudioStateNotification
class BluetoothDaemonA2dpModule::AudioStateInitOp MOZ_FINAL
: private PDUInitOp
{
public:
AudioStateInitOp(BluetoothDaemonPDU& aPDU)
: PDUInitOp(aPDU)
{ }
nsresult
operator () (BluetoothA2dpAudioState& aArg1,
nsString& aArg2) const
{
BluetoothDaemonPDU& pdu = GetPDU();
/* Read state */
nsresult rv = UnpackPDU(pdu, aArg1);
if (NS_FAILED(rv)) {
return rv;
}
/* Read address */
rv = UnpackPDU(
pdu, UnpackConversion<BluetoothAddress, nsAString>(aArg2));
if (NS_FAILED(rv)) {
return rv;
}
WarnAboutTrailingData();
return NS_OK;
}
};
void
BluetoothDaemonA2dpModule::AudioStateNtf(
const BluetoothDaemonPDUHeader& aHeader, BluetoothDaemonPDU& aPDU)
{
AudioStateNotification::Dispatch(
&BluetoothA2dpNotificationHandler::AudioStateNotification,
AudioStateInitOp(aPDU));
}
void
BluetoothDaemonA2dpModule::HandleNtf(
const BluetoothDaemonPDUHeader& aHeader, BluetoothDaemonPDU& aPDU,
void* aUserData)
{
static void (BluetoothDaemonA2dpModule::* const HandleNtf[])(
const BluetoothDaemonPDUHeader&, BluetoothDaemonPDU&) = {
INIT_ARRAY_AT(0, &BluetoothDaemonA2dpModule::ConnectionStateNtf),
INIT_ARRAY_AT(1, &BluetoothDaemonA2dpModule::AudioStateNtf),
};
MOZ_ASSERT(!NS_IsMainThread());
uint8_t index = aHeader.mOpcode - 0x81;
if (NS_WARN_IF(!(index < MOZ_ARRAY_LENGTH(HandleNtf))) ||
NS_WARN_IF(!HandleNtf[index])) {
return;
}
(this->*(HandleNtf[index]))(aHeader, aPDU);
}
//
// A2DP interface
//
BluetoothDaemonA2dpInterface::BluetoothDaemonA2dpInterface(
BluetoothDaemonA2dpModule* aModule)
: mModule(aModule)
{ }
BluetoothDaemonA2dpInterface::~BluetoothDaemonA2dpInterface()
{ }
class BluetoothDaemonA2dpInterface::InitResultHandler MOZ_FINAL
: public BluetoothSetupResultHandler
{
public:
InitResultHandler(BluetoothA2dpResultHandler* aRes)
: mRes(aRes)
{
MOZ_ASSERT(mRes);
}
void OnError(BluetoothStatus aStatus) MOZ_OVERRIDE
{
MOZ_ASSERT(NS_IsMainThread());
mRes->OnError(aStatus);
}
void RegisterModule() MOZ_OVERRIDE
{
MOZ_ASSERT(NS_IsMainThread());
mRes->Init();
}
private:
nsRefPtr<BluetoothA2dpResultHandler> mRes;
};
void
BluetoothDaemonA2dpInterface::Init(
BluetoothA2dpNotificationHandler* aNotificationHandler,
BluetoothA2dpResultHandler* aRes)
{
// Set notification handler _before_ registering the module. It could
// happen that we receive notifications, before the result handler runs.
mModule->SetNotificationHandler(aNotificationHandler);
InitResultHandler* res;
if (aRes) {
res = new InitResultHandler(aRes);
} else {
// We don't need a result handler if the caller is not interested.
res = nullptr;
}
nsresult rv = mModule->RegisterModule(BluetoothDaemonA2dpModule::SERVICE_ID,
0x00, res);
if (NS_FAILED(rv) && aRes) {
DispatchError(aRes, STATUS_FAIL);
}
}
class BluetoothDaemonA2dpInterface::CleanupResultHandler MOZ_FINAL
: public BluetoothSetupResultHandler
{
public:
CleanupResultHandler(BluetoothDaemonA2dpModule* aModule,
BluetoothA2dpResultHandler* aRes)
: mModule(aModule)
, mRes(aRes)
{
MOZ_ASSERT(mModule);
}
void OnError(BluetoothStatus aStatus) MOZ_OVERRIDE
{
MOZ_ASSERT(NS_IsMainThread());
if (mRes) {
mRes->OnError(aStatus);
}
}
void UnregisterModule() MOZ_OVERRIDE
{
MOZ_ASSERT(NS_IsMainThread());
// Clear notification handler _after_ module has been
// unregistered. While unregistering the module, we might
// still receive notifications.
mModule->SetNotificationHandler(nullptr);
if (mRes) {
mRes->Cleanup();
}
}
private:
BluetoothDaemonA2dpModule* mModule;
nsRefPtr<BluetoothA2dpResultHandler> mRes;
};
void
BluetoothDaemonA2dpInterface::Cleanup(
BluetoothA2dpResultHandler* aRes)
{
mModule->UnregisterModule(BluetoothDaemonA2dpModule::SERVICE_ID,
new CleanupResultHandler(mModule, aRes));
}
/* Connect / Disconnect */
void
BluetoothDaemonA2dpInterface::Connect(
const nsAString& aBdAddr, BluetoothA2dpResultHandler* aRes)
{
MOZ_ASSERT(mModule);
mModule->ConnectCmd(aBdAddr, aRes);
}
void
BluetoothDaemonA2dpInterface::Disconnect(
const nsAString& aBdAddr, BluetoothA2dpResultHandler* aRes)
{
MOZ_ASSERT(mModule);
mModule->DisconnectCmd(aBdAddr, aRes);
}
void
BluetoothDaemonA2dpInterface::DispatchError(
BluetoothA2dpResultHandler* aRes, BluetoothStatus aStatus)
{
BluetoothResultRunnable1<BluetoothA2dpResultHandler, void,
BluetoothStatus, BluetoothStatus>::Dispatch(
aRes, &BluetoothA2dpResultHandler::OnError,
ConstantInitOp1<BluetoothStatus>(aStatus));
}
END_BLUETOOTH_NAMESPACE