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gecko/dom/bluetooth/BluetoothHfpManager.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 "BluetoothHfpManager.h"
#include "BluetoothReplyRunnable.h"
#include "BluetoothScoManager.h"
#include "BluetoothService.h"
#include "BluetoothServiceUuid.h"
#include "mozilla/dom/bluetooth/BluetoothTypes.h"
#include "mozilla/Services.h"
#include "nsContentUtils.h"
#include "nsIAudioManager.h"
#include "nsIObserverService.h"
#include "nsIRadioInterfaceLayer.h"
#include "nsISystemMessagesInternal.h"
#include "BluetoothUtils.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"
USING_BLUETOOTH_NAMESPACE
using namespace mozilla::ipc;
static nsRefPtr<BluetoothHfpManager> sInstance = nullptr;
static nsCOMPtr<nsIThread> sHfpCommandThread;
static bool sStopSendingRingFlag = true;
static int kRingInterval = 3000000; //unit: us
NS_IMPL_ISUPPORTS1(BluetoothHfpManager, nsIObserver)
class SendRingIndicatorTask : public nsRunnable
{
public:
SendRingIndicatorTask()
{
MOZ_ASSERT(NS_IsMainThread());
}
NS_IMETHOD Run()
{
MOZ_ASSERT(!NS_IsMainThread());
while (!sStopSendingRingFlag) {
sInstance->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)
{
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (obs && NS_FAILED(obs->AddObserver(this, MOZSETTINGS_CHANGED_ID, false))) {
NS_WARNING("Failed to add settings change observer!");
}
mListener = new BluetoothRilListener();
if (!mListener->StartListening()) {
NS_WARNING("Failed to start listening RIL");
}
if (!sHfpCommandThread) {
if (NS_FAILED(NS_NewThread(getter_AddRefs(sHfpCommandThread)))) {
NS_ERROR("Failed to new thread for sHfpCommandThread");
}
}
}
BluetoothHfpManager::~BluetoothHfpManager()
{
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!");
}
}
}
//static
BluetoothHfpManager*
BluetoothHfpManager::Get()
{
MOZ_ASSERT(NS_IsMainThread());
if (sInstance == nullptr) {
sInstance = new BluetoothHfpManager();
}
return sInstance;
}
bool
BluetoothHfpManager::BroadcastSystemMessage(const nsAString& aType,
const InfallibleTArray<BluetoothNamedValue>& aData)
{
JSContext* cx = nsContentUtils::GetSafeJSContext();
NS_ASSERTION(!::JS_IsExceptionPending(cx),
"Shouldn't get here when an exception is pending!");
JSAutoRequest jsar(cx);
JSObject* obj = JS_NewObject(cx, NULL, NULL, NULL);
if (!obj) {
NS_WARNING("Failed to new JSObject for system message!");
return false;
}
if (!SetJsObject(cx, obj, aData)) {
NS_WARNING("Failed to set properties of system message!");
return false;
}
nsCOMPtr<nsISystemMessagesInternal> systemMessenger =
do_GetService("@mozilla.org/system-message-internal;1");
if (!systemMessenger) {
NS_WARNING("Failed to get SystemMessenger service!");
return false;
}
systemMessenger->BroadcastMessage(aType, OBJECT_TO_JSVAL(obj));
return true;
}
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::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
if (!strcmp(aTopic, MOZSETTINGS_CHANGED_ID)) {
return HandleVolumeChanged(nsDependentString(aData));
} else {
MOZ_ASSERT(false, "BluetoothHfpManager got unexpected topic!");
}
return NS_ERROR_UNEXPECTED;
}
// 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", 7)) {
// FIXME - Bug 794349
// This value reflects current status of telephony, roaming, battery ...,
// so obviously fixed value must be wrong if there is an ongoing call.
// Need a patch for this, but currently just using fixed value for basic
// SLC establishment.
SendLine("+CIND: 5,5,1,0,0,0,0");
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 {
#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,
BluetoothReplyRunnable* aRunnable)
{
MOZ_ASSERT(NS_IsMainThread());
BluetoothService* bs = BluetoothService::Get();
if (!bs) {
NS_WARNING("BluetoothService not available!");
return false;
}
mDevicePath = aDeviceObjectPath;
nsString serviceUuidStr =
NS_ConvertUTF8toUTF16(mozilla::dom::bluetooth::BluetoothServiceUuidStr::Handsfree);
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());
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();
}
bool
BluetoothHfpManager::SendLine(const char* aMessage)
{
const char* kHfpCrlf = "\xd\xa";
nsAutoCString msg;
msg += kHfpCrlf;
msg += aMessage;
msg += kHfpCrlf;
return SendSocketData(msg);
}
/*
* 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;
}
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