gecko/dom/bluetooth/BluetoothHfpManager.cpp
Kyle Machulis c9010dc7b5 Bug 800247: Add disconnect events to UnixSocket, update Bluetooth*Manager; r=echou r=cjones
--HG--
extra : rebase_source : 809d46954baea51bf4053c3a48ce45b18b1a58e9
2012-10-12 11:38:14 -07:00

792 lines
20 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 "base/basictypes.h"
#include "BluetoothHfpManager.h"
#include "BluetoothReplyRunnable.h"
#include "BluetoothScoManager.h"
#include "BluetoothService.h"
#include "BluetoothServiceUuid.h"
#include "BluetoothUtils.h"
#include "mozilla/dom/bluetooth/BluetoothTypes.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "nsContentUtils.h"
#include "nsIAudioManager.h"
#include "nsIObserverService.h"
#include "nsIRadioInterfaceLayer.h"
#include "nsVariant.h"
#include <unistd.h> /* usleep() */
#define MOZSETTINGS_CHANGED_ID "mozsettings-changed"
#define BLUETOOTH_SCO_STATUS_CHANGED "bluetooth-sco-status-changed"
#define AUDIO_VOLUME_MASTER "audio.volume.master"
#define HANDSFREE_UUID mozilla::dom::bluetooth::BluetoothServiceUuidStr::Handsfree
#define HEADSET_UUID mozilla::dom::bluetooth::BluetoothServiceUuidStr::Headset
using namespace mozilla;
using namespace mozilla::ipc;
USING_BLUETOOTH_NAMESPACE
class mozilla::dom::bluetooth::BluetoothHfpManagerObserver : public nsIObserver
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
BluetoothHfpManagerObserver()
{
}
bool Init()
{
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
MOZ_ASSERT(obs);
if (NS_FAILED(obs->AddObserver(this, MOZSETTINGS_CHANGED_ID, false))) {
NS_WARNING("Failed to add settings change observer!");
return false;
}
if (NS_FAILED(obs->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false))) {
NS_WARNING("Failed to add shutdown observer!");
return false;
}
return true;
}
bool Shutdown()
{
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (!obs ||
(NS_FAILED(obs->RemoveObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) ||
NS_FAILED(obs->RemoveObserver(this, MOZSETTINGS_CHANGED_ID)))) {
NS_WARNING("Can't unregister observers, or already unregistered!");
return false;
}
return true;
}
~BluetoothHfpManagerObserver()
{
Shutdown();
}
};
namespace {
StaticRefPtr<BluetoothHfpManager> gBluetoothHfpManager;
StaticRefPtr<BluetoothHfpManagerObserver> sHfpObserver;
bool gInShutdown = false;
static nsCOMPtr<nsIThread> sHfpCommandThread;
static bool sStopSendingRingFlag = true;
static int kRingInterval = 3000000; //unit: us
} // anonymous namespace
NS_IMPL_ISUPPORTS1(BluetoothHfpManagerObserver, nsIObserver)
NS_IMETHODIMP
BluetoothHfpManagerObserver::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
MOZ_ASSERT(gBluetoothHfpManager);
if (!strcmp(aTopic, MOZSETTINGS_CHANGED_ID)) {
return gBluetoothHfpManager->HandleVolumeChanged(nsDependentString(aData));
} else if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
return gBluetoothHfpManager->HandleShutdown();
}
MOZ_ASSERT(false, "BluetoothHfpManager got unexpected topic!");
return NS_ERROR_UNEXPECTED;
}
class SendRingIndicatorTask : public nsRunnable
{
public:
SendRingIndicatorTask()
{
MOZ_ASSERT(NS_IsMainThread());
}
NS_IMETHOD Run()
{
MOZ_ASSERT(!NS_IsMainThread());
while (!sStopSendingRingFlag) {
gBluetoothHfpManager->SendLine("RING");
usleep(kRingInterval);
}
return NS_OK;
}
};
void
OpenScoSocket(const nsAString& aDevicePath)
{
MOZ_ASSERT(NS_IsMainThread());
BluetoothScoManager* sco = BluetoothScoManager::Get();
if (!sco) {
NS_WARNING("BluetoothScoManager is not available!");
return;
}
if (!sco->Connect(aDevicePath)) {
NS_WARNING("Failed to create a sco socket!");
}
}
void
CloseScoSocket()
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIAudioManager> am = do_GetService("@mozilla.org/telephony/audiomanager;1");
if (!am) {
NS_WARNING("Failed to get AudioManager Service!");
return;
}
am->SetForceForUse(am->USE_COMMUNICATION, am->FORCE_NONE);
BluetoothScoManager* sco = BluetoothScoManager::Get();
if (!sco) {
NS_WARNING("BluetoothScoManager is not available!");
return;
}
if (sco->GetConnected()) {
nsCOMPtr<nsIObserverService> obs = do_GetService("@mozilla.org/observer-service;1");
if (obs) {
if (NS_FAILED(obs->NotifyObservers(nullptr, BLUETOOTH_SCO_STATUS_CHANGED, nullptr))) {
NS_WARNING("Failed to notify bluetooth-sco-status-changed observsers!");
return;
}
}
sco->Disconnect();
}
}
BluetoothHfpManager::BluetoothHfpManager()
: mCurrentVgs(-1)
, mCurrentCallIndex(0)
, mCurrentCallState(nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTED)
, mCall(0)
, mCallSetup(0)
, mCallHeld(0)
{
}
bool
BluetoothHfpManager::Init()
{
sHfpObserver = new BluetoothHfpManagerObserver();
if (!sHfpObserver->Init()) {
NS_WARNING("Cannot set up Hfp Observers!");
}
mListener = new BluetoothRilListener();
if (!mListener->StartListening()) {
NS_WARNING("Failed to start listening RIL");
return false;
}
if (!sHfpCommandThread) {
if (NS_FAILED(NS_NewThread(getter_AddRefs(sHfpCommandThread)))) {
NS_ERROR("Failed to new thread for sHfpCommandThread");
return false;
}
}
return true;
}
BluetoothHfpManager::~BluetoothHfpManager()
{
Cleanup();
}
void
BluetoothHfpManager::Cleanup()
{
if (!mListener->StopListening()) {
NS_WARNING("Failed to stop listening RIL");
}
mListener = nullptr;
// Shut down the command thread if it still exists.
if (sHfpCommandThread) {
nsCOMPtr<nsIThread> thread;
sHfpCommandThread.swap(thread);
if (NS_FAILED(thread->Shutdown())) {
NS_WARNING("Failed to shut down the bluetooth hfpmanager command thread!");
}
}
sHfpObserver->Shutdown();
sHfpObserver = nullptr;
}
//static
BluetoothHfpManager*
BluetoothHfpManager::Get()
{
MOZ_ASSERT(NS_IsMainThread());
// If we already exist, exit early
if (gBluetoothHfpManager) {
return gBluetoothHfpManager;
}
// If we're in shutdown, don't create a new instance
if (gInShutdown) {
NS_WARNING("BluetoothHfpManager can't be created during shutdown");
return nullptr;
}
// Create new instance, register, return
nsRefPtr<BluetoothHfpManager> manager = new BluetoothHfpManager();
NS_ENSURE_TRUE(manager, nullptr);
if (!manager->Init()) {
return nullptr;
}
gBluetoothHfpManager = manager;
return gBluetoothHfpManager;
}
void
BluetoothHfpManager::NotifySettings(const bool aConnected)
{
nsString type, name;
BluetoothValue v;
InfallibleTArray<BluetoothNamedValue> parameters;
type.AssignLiteral("bluetooth-hfp-status-changed");
name.AssignLiteral("connected");
v = aConnected;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("address");
v = GetAddressFromObjectPath(mDevicePath);
parameters.AppendElement(BluetoothNamedValue(name, v));
if (!BroadcastSystemMessage(type, parameters)) {
NS_WARNING("Failed to broadcast system message to dialer");
return;
}
}
void
BluetoothHfpManager::NotifyDialer(const nsAString& aCommand)
{
nsString type, name, command;
command = aCommand;
InfallibleTArray<BluetoothNamedValue> parameters;
type.AssignLiteral("bluetooth-dialer-command");
BluetoothValue v(command);
parameters.AppendElement(BluetoothNamedValue(type, v));
if (!BroadcastSystemMessage(type, parameters)) {
NS_WARNING("Failed to broadcast system message to dialer");
return;
}
}
nsresult
BluetoothHfpManager::HandleVolumeChanged(const nsAString& aData)
{
MOZ_ASSERT(NS_IsMainThread());
// The string that we're interested in will be a JSON string that looks like:
// {"key":"volumeup", "value":1.0}
// {"key":"volumedown", "value":0.2}
JSContext* cx = nsContentUtils::GetSafeJSContext();
if (!cx) {
return NS_OK;
}
JS::Value val;
if (!JS_ParseJSON(cx, aData.BeginReading(), aData.Length(), &val)) {
return JS_ReportPendingException(cx) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
if (!val.isObject()) {
return NS_OK;
}
JSObject& obj(val.toObject());
JS::Value key;
if (!JS_GetProperty(cx, &obj, "key", &key)) {
MOZ_ASSERT(!JS_IsExceptionPending(cx));
return NS_ERROR_OUT_OF_MEMORY;
}
if (!key.isString()) {
return NS_OK;
}
JSBool match;
if (!JS_StringEqualsAscii(cx, key.toString(), AUDIO_VOLUME_MASTER, &match)) {
MOZ_ASSERT(!JS_IsExceptionPending(cx));
return NS_ERROR_OUT_OF_MEMORY;
}
if (!match) {
return NS_OK;
}
JS::Value value;
if (!JS_GetProperty(cx, &obj, "value", &value)) {
MOZ_ASSERT(!JS_IsExceptionPending(cx));
return NS_ERROR_OUT_OF_MEMORY;
}
if (!value.isNumber()) {
return NS_ERROR_UNEXPECTED;
}
// AG volume range: [0.0, 1.0]
float volume = value.toNumber();
// HS volume range: [0, 15]
mCurrentVgs = ceil(volume * 15);
nsDiscriminatedUnion du;
du.mType = 0;
du.u.mInt8Value = mCurrentVgs;
nsCString vgs;
if (NS_FAILED(nsVariant::ConvertToACString(du, vgs))) {
NS_WARNING("Failed to convert volume to string");
return NS_ERROR_FAILURE;
}
nsAutoCString newVgs;
newVgs += "+VGS: ";
newVgs += vgs;
SendLine(newVgs.get());
return NS_OK;
}
nsresult
BluetoothHfpManager::HandleShutdown()
{
MOZ_ASSERT(NS_IsMainThread());
gInShutdown = true;
CloseSocket();
gBluetoothHfpManager = nullptr;
return NS_OK;
}
bool
AppendIntegerToString(nsAutoCString& aString, int aValue)
{
nsDiscriminatedUnion du;
du.mType = 0;
du.u.mInt8Value = aValue;
nsCString temp;
if (NS_FAILED(nsVariant::ConvertToACString(du, temp))) {
NS_WARNING("Failed to convert mCall/mCallSetup/mCallHeld to string");
return false;
}
aString += temp;
aString += ",";
return true;
}
// Virtual function of class SocketConsumer
void
BluetoothHfpManager::ReceiveSocketData(UnixSocketRawData* aMessage)
{
MOZ_ASSERT(NS_IsMainThread());
const char* msg = (const char*)aMessage->mData;
// For more information, please refer to 4.34.1 "Bluetooth Defined AT
// Capabilities" in Bluetooth hands-free profile 1.6
if (!strncmp(msg, "AT+BRSF=", 8)) {
SendLine("+BRSF: 23");
SendLine("OK");
} else if (!strncmp(msg, "AT+CIND=?", 9)) {
nsAutoCString cindRange;
cindRange += "+CIND: ";
cindRange += "(\"battchg\",(0-5)),";
cindRange += "(\"signal\",(0-5)),";
cindRange += "(\"service\",(0,1)),";
cindRange += "(\"call\",(0,1)),";
cindRange += "(\"callsetup\",(0-3)),";
cindRange += "(\"callheld\",(0-2)),";
cindRange += "(\"roam\",(0,1))";
SendLine(cindRange.get());
SendLine("OK");
} else if (!strncmp(msg, "AT+CIND?", 8)) {
nsAutoCString cind;
cind += "+CIND: 5,5,1,";
if (!AppendIntegerToString(cind, mCall) ||
!AppendIntegerToString(cind, mCallSetup) ||
!AppendIntegerToString(cind, mCallHeld)) {
NS_WARNING("Failed to convert mCall/mCallSetup/mCallHeld to string");
}
cind += "0";
SendLine(cind.get());
SendLine("OK");
} else if (!strncmp(msg, "AT+CMER=", 8)) {
// SLC establishment
NotifySettings(true);
SendLine("OK");
} else if (!strncmp(msg, "AT+CHLD=?", 9)) {
SendLine("+CHLD: (0,1,2,3)");
SendLine("OK");
} else if (!strncmp(msg, "AT+CHLD=", 8)) {
SendLine("OK");
} else if (!strncmp(msg, "AT+VGS=", 7)) {
// VGS range: [0, 15]
int newVgs = msg[7] - '0';
if (strlen(msg) > 8) {
newVgs *= 10;
newVgs += (msg[8] - '0');
}
#ifdef DEBUG
NS_ASSERTION(newVgs >= 0 && newVgs <= 15, "Received invalid VGS value");
#endif
// Currently, we send volume up/down commands to represent that
// volume has been changed by Bluetooth headset, and that will affect
// the main stream volume of our device. In the future, we may want to
// be able to set volume by stream.
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (newVgs > mCurrentVgs) {
os->NotifyObservers(nullptr, "bluetooth-volume-change", NS_LITERAL_STRING("up").get());
} else if (newVgs < mCurrentVgs) {
os->NotifyObservers(nullptr, "bluetooth-volume-change", NS_LITERAL_STRING("down").get());
}
mCurrentVgs = newVgs;
SendLine("OK");
} else if (!strncmp(msg, "AT+BLDN", 7)) {
NotifyDialer(NS_LITERAL_STRING("BLDN"));
SendLine("OK");
} else if (!strncmp(msg, "ATA", 3)) {
NotifyDialer(NS_LITERAL_STRING("ATA"));
SendLine("OK");
} else if (!strncmp(msg, "AT+CHUP", 7)) {
NotifyDialer(NS_LITERAL_STRING("CHUP"));
SendLine("OK");
} else if (!strncmp(msg, "AT+CKPD", 7)) {
// For Headset
switch (mCurrentCallState) {
case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
NotifyDialer(NS_LITERAL_STRING("ATA"));
break;
case nsIRadioInterfaceLayer::CALL_STATE_CONNECTED:
case nsIRadioInterfaceLayer::CALL_STATE_DIALING:
case nsIRadioInterfaceLayer::CALL_STATE_ALERTING:
NotifyDialer(NS_LITERAL_STRING("CHUP"));
break;
case nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTED:
NotifyDialer(NS_LITERAL_STRING("BLDN"));
break;
default:
#ifdef DEBUG
NS_WARNING("Not handling state changed");
#endif
break;
}
SendLine("OK");
} else {
#ifdef DEBUG
nsCString warningMsg;
warningMsg.AssignLiteral("Not handling HFP message, reply ok: ");
warningMsg.Append(msg);
NS_WARNING(warningMsg.get());
#endif
SendLine("OK");
}
}
bool
BluetoothHfpManager::Connect(const nsAString& aDeviceObjectPath,
const bool aIsHandsfree,
BluetoothReplyRunnable* aRunnable)
{
MOZ_ASSERT(NS_IsMainThread());
if (gInShutdown) {
MOZ_ASSERT(false, "Connect called while in shutdown!");
return false;
}
CloseSocket();
BluetoothService* bs = BluetoothService::Get();
if (!bs) {
NS_WARNING("BluetoothService not available!");
return false;
}
mDevicePath = aDeviceObjectPath;
nsString serviceUuidStr;
if (aIsHandsfree) {
serviceUuidStr = NS_ConvertUTF8toUTF16(HANDSFREE_UUID);
} else {
serviceUuidStr = NS_ConvertUTF8toUTF16(HEADSET_UUID);
}
nsCOMPtr<nsIRILContentHelper> ril =
do_GetService("@mozilla.org/ril/content-helper;1");
NS_ENSURE_TRUE(ril, false);
ril->EnumerateCalls(mListener->GetCallback());
nsRefPtr<BluetoothReplyRunnable> runnable = aRunnable;
nsresult rv = bs->GetSocketViaService(aDeviceObjectPath,
serviceUuidStr,
BluetoothSocketType::RFCOMM,
true,
false,
this,
runnable);
runnable.forget();
return NS_FAILED(rv) ? false : true;
}
bool
BluetoothHfpManager::Listen()
{
MOZ_ASSERT(NS_IsMainThread());
if (gInShutdown) {
MOZ_ASSERT(false, "Listen called while in shutdown!");
return false;
}
CloseSocket();
BluetoothService* bs = BluetoothService::Get();
if (!bs) {
NS_WARNING("BluetoothService not available!");
return false;
}
nsresult rv = bs->ListenSocketViaService(BluetoothReservedChannels::HANDSFREE_AG,
BluetoothSocketType::RFCOMM,
true,
false,
this);
return NS_FAILED(rv) ? false : true;
}
void
BluetoothHfpManager::Disconnect()
{
NotifySettings(false);
CloseSocket();
mCall = 0;
mCallSetup = 0;
mCallHeld = 0;
Listen();
}
bool
BluetoothHfpManager::SendLine(const char* aMessage)
{
const char* kHfpCrlf = "\xd\xa";
nsAutoCString msg;
msg += kHfpCrlf;
msg += aMessage;
msg += kHfpCrlf;
return SendSocketData(msg);
}
/*
* EnumerateCallState will be called for each call
*/
void
BluetoothHfpManager::EnumerateCallState(int aCallIndex, int aCallState,
const char* aNumber, bool aIsActive)
{
// TODO: enums for mCall, mCallSetup, mCallHeld
/* mCall - 0: there are no calls in progress
* - 1: at least one call is in progress
* mCallSetup - 0: not currently in call set up
* - 1: an incoming call process ongoing
* - 2: an outgoing call set up is ongoing
* - 3: remote party being alerted in an outgoing call
* mCallHeld - 0: no calls held
* - 1: call is placed on hold or active/held calls swapped
* - 2: call o hold, no active call
*/
if (mCallHeld == 2 && aIsActive) {
mCallHeld = 1;
}
if (mCall || mCallSetup) {
return;
}
switch (aCallState) {
case nsIRadioInterfaceLayer::CALL_STATE_ALERTING:
mCall = 1;
mCallSetup = 3;
break;
case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
mCall = 1;
mCallSetup = 1;
break;
case nsIRadioInterfaceLayer::CALL_STATE_CONNECTING:
case nsIRadioInterfaceLayer::CALL_STATE_CONNECTED:
case nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTING:
case nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTED:
case nsIRadioInterfaceLayer::CALL_STATE_BUSY:
mCall = 1;
mCallSetup = 2;
break;
case nsIRadioInterfaceLayer::CALL_STATE_HOLDING:
case nsIRadioInterfaceLayer::CALL_STATE_HELD:
case nsIRadioInterfaceLayer::CALL_STATE_RESUMING:
mCall = 1;
mCallHeld = 2;
default:
mCall = 0;
mCallSetup = 0;
}
}
/*
* CallStateChanged will be called whenever call status is changed, and it
* also means we need to notify HS about the change. For more information,
* please refer to 4.13 ~ 4.15 in Bluetooth hands-free profile 1.6.
*/
void
BluetoothHfpManager::CallStateChanged(int aCallIndex, int aCallState,
const char* aNumber, bool aIsActive)
{
nsRefPtr<nsRunnable> sendRingTask;
switch (aCallState) {
case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
// Send "CallSetup = 1"
SendLine("+CIEV: 5,1");
// Start sending RING indicator to HF
sStopSendingRingFlag = false;
sendRingTask = new SendRingIndicatorTask();
if (NS_FAILED(sHfpCommandThread->Dispatch(sendRingTask, NS_DISPATCH_NORMAL))) {
NS_WARNING("Cannot dispatch ring task!");
return;
};
break;
case nsIRadioInterfaceLayer::CALL_STATE_DIALING:
// Send "CallSetup = 2"
SendLine("+CIEV: 5,2");
break;
case nsIRadioInterfaceLayer::CALL_STATE_ALERTING:
// Send "CallSetup = 3"
if (mCurrentCallIndex == nsIRadioInterfaceLayer::CALL_STATE_DIALING) {
SendLine("+CIEV: 5,3");
} else {
#ifdef DEBUG
NS_WARNING("Not handling state changed");
#endif
}
break;
case nsIRadioInterfaceLayer::CALL_STATE_CONNECTED:
switch (mCurrentCallState) {
case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
sStopSendingRingFlag = true;
// Continue executing, no break
case nsIRadioInterfaceLayer::CALL_STATE_DIALING:
// Send "Call = 1, CallSetup = 0"
SendLine("+CIEV: 4,1");
SendLine("+CIEV: 5,0");
break;
default:
#ifdef DEBUG
NS_WARNING("Not handling state changed");
#endif
break;
}
OpenScoSocket(mDevicePath);
break;
case nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTED:
switch (mCurrentCallState) {
case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
sStopSendingRingFlag = true;
// Continue executing, no break
case nsIRadioInterfaceLayer::CALL_STATE_DIALING:
case nsIRadioInterfaceLayer::CALL_STATE_ALERTING:
// Send "CallSetup = 0"
SendLine("+CIEV: 5,0");
break;
case nsIRadioInterfaceLayer::CALL_STATE_CONNECTED:
// Send "Call = 0"
SendLine("+CIEV: 4,0");
break;
default:
#ifdef DEBUG
NS_WARNING("Not handling state changed");
#endif
break;
}
CloseScoSocket();
break;
default:
#ifdef DEBUG
NS_WARNING("Not handling state changed");
#endif
break;
}
mCurrentCallIndex = aCallIndex;
mCurrentCallState = aCallState;
}
void
BluetoothHfpManager::OnConnectSuccess()
{
}
void
BluetoothHfpManager::OnConnectError()
{
CloseSocket();
// If connecting for some reason didn't work, restart listening
Listen();
}
void
BluetoothHfpManager::OnDisconnect()
{
NS_WARNING("GOT DISCONNECT!");
}