gecko/dom/system/gonk/AudioManager.cpp

349 lines
11 KiB
C++
Raw Normal View History

/* Copyright 2012 Mozilla Foundation and Mozilla contributors
*
* 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 <android/log.h>
#include "mozilla/Hal.h"
#include "AudioManager.h"
#include "gonk/AudioSystem.h"
#include "nsIObserverService.h"
#include "mozilla/Services.h"
using namespace mozilla::dom::gonk;
using namespace android;
using namespace mozilla::hal;
using namespace mozilla;
#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "AudioManager" , ## args)
#define HEADPHONES_STATUS_CHANGED "headphones-status-changed"
#define HEADPHONES_STATUS_ON NS_LITERAL_STRING("on").get()
#define HEADPHONES_STATUS_OFF NS_LITERAL_STRING("off").get()
#define HEADPHONES_STATUS_UNKNOWN NS_LITERAL_STRING("unknown").get()
#define BLUETOOTH_SCO_STATUS_CHANGED "bluetooth-sco-status-changed"
// A bitwise variable for recording what kind of headset is attached.
static int sHeadsetState;
static int kBtSampleRate = 8000;
static bool
IsFmRadioAudioOn()
{
if (static_cast<
audio_policy_dev_state_t (*) (audio_devices_t, const char *)
>(AudioSystem::getDeviceConnectionState)) {
return AudioSystem::getDeviceConnectionState(AUDIO_DEVICE_OUT_FM, "") ==
AUDIO_POLICY_DEVICE_STATE_AVAILABLE ? true : false;
} else {
return false;
}
}
NS_IMPL_ISUPPORTS2(AudioManager, nsIAudioManager, nsIObserver)
static AudioSystem::audio_devices
GetRoutingMode(int aType) {
if (aType == nsIAudioManager::FORCE_SPEAKER) {
return AudioSystem::DEVICE_OUT_SPEAKER;
} else if (aType == nsIAudioManager::FORCE_HEADPHONES) {
return AudioSystem::DEVICE_OUT_WIRED_HEADSET;
} else if (aType == nsIAudioManager::FORCE_BT_SCO) {
return AudioSystem::DEVICE_OUT_BLUETOOTH_SCO;
} else if (aType == nsIAudioManager::FORCE_BT_A2DP) {
return AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP;
} else {
return AudioSystem::DEVICE_IN_DEFAULT;
}
}
static void
InternalSetAudioRoutesICS(SwitchState aState)
{
if (aState == SWITCH_STATE_HEADSET) {
AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_OUT_WIRED_HEADSET,
AUDIO_POLICY_DEVICE_STATE_AVAILABLE, "");
sHeadsetState |= AUDIO_DEVICE_OUT_WIRED_HEADSET;
} else if (aState == SWITCH_STATE_HEADPHONE) {
AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_OUT_WIRED_HEADPHONE,
AUDIO_POLICY_DEVICE_STATE_AVAILABLE, "");
sHeadsetState |= AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
} else if (aState == SWITCH_STATE_OFF) {
AudioSystem::setDeviceConnectionState(static_cast<audio_devices_t>(sHeadsetState),
AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, "");
sHeadsetState = 0;
}
// The audio volume is not consistent when we plug and unplug the headset.
// Set the fm volume again here.
if (IsFmRadioAudioOn()) {
float masterVolume;
AudioSystem::getMasterVolume(&masterVolume);
AudioSystem::setFmVolume(masterVolume);
}
}
static void
InternalSetAudioRoutesGB(SwitchState aState)
{
audio_io_handle_t handle =
AudioSystem::getOutput((AudioSystem::stream_type)AudioSystem::SYSTEM);
String8 cmd;
if (aState == SWITCH_STATE_HEADSET || aState == SWITCH_STATE_HEADPHONE) {
cmd.appendFormat("routing=%d", GetRoutingMode(nsIAudioManager::FORCE_HEADPHONES));
} else if (aState == SWITCH_STATE_OFF) {
cmd.appendFormat("routing=%d", GetRoutingMode(nsIAudioManager::FORCE_SPEAKER));
}
AudioSystem::setParameters(handle, cmd);
}
static void
InternalSetAudioRoutes(SwitchState aState)
{
if (static_cast<
status_t (*)(audio_devices_t, audio_policy_dev_state_t, const char*)
>(AudioSystem::setDeviceConnectionState)) {
InternalSetAudioRoutesICS(aState);
} else if (static_cast<
audio_io_handle_t (*)(AudioSystem::stream_type, uint32_t, uint32_t, uint32_t, AudioSystem::output_flags)
>(AudioSystem::getOutput)) {
InternalSetAudioRoutesGB(aState);
}
}
nsresult
AudioManager::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
if (!strcmp(aTopic, BLUETOOTH_SCO_STATUS_CHANGED)) {
if (aData) {
String8 cmd;
cmd.appendFormat("bt_samplerate=%d", kBtSampleRate);
AudioSystem::setParameters(0, cmd);
const char* address = NS_ConvertUTF16toUTF8(nsDependentString(aData)).get();
AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET,
AUDIO_POLICY_DEVICE_STATE_AVAILABLE, address);
AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET,
AUDIO_POLICY_DEVICE_STATE_AVAILABLE, address);
} else {
AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET,
AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, "");
AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET,
AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, "");
}
return NS_OK;
}
return NS_ERROR_UNEXPECTED;
}
static void
NotifyHeadphonesStatus(SwitchState aState)
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
if (aState == SWITCH_STATE_ON) {
obs->NotifyObservers(nullptr, HEADPHONES_STATUS_CHANGED, HEADPHONES_STATUS_ON);
} else if (aState == SWITCH_STATE_OFF) {
obs->NotifyObservers(nullptr, HEADPHONES_STATUS_CHANGED, HEADPHONES_STATUS_OFF);
} else {
obs->NotifyObservers(nullptr, HEADPHONES_STATUS_CHANGED, HEADPHONES_STATUS_UNKNOWN);
}
}
}
class HeadphoneSwitchObserver : public SwitchObserver
{
public:
void Notify(const SwitchEvent& aEvent) {
InternalSetAudioRoutes(aEvent.status());
NotifyHeadphonesStatus(aEvent.status());
}
};
AudioManager::AudioManager() : mPhoneState(PHONE_STATE_CURRENT),
mObserver(new HeadphoneSwitchObserver())
{
RegisterSwitchObserver(SWITCH_HEADPHONES, mObserver);
InternalSetAudioRoutes(GetCurrentSwitchState(SWITCH_HEADPHONES));
NotifyHeadphonesStatus(GetCurrentSwitchState(SWITCH_HEADPHONES));
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (NS_FAILED(obs->AddObserver(this, BLUETOOTH_SCO_STATUS_CHANGED, false))) {
NS_WARNING("Failed to add bluetooth-sco-status-changed oberver!");
}
}
AudioManager::~AudioManager() {
UnregisterSwitchObserver(SWITCH_HEADPHONES, mObserver);
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (NS_FAILED(obs->RemoveObserver(this, BLUETOOTH_SCO_STATUS_CHANGED))) {
NS_WARNING("Failed to add bluetooth-sco-status-changed oberver!");
}
}
NS_IMETHODIMP
AudioManager::GetMicrophoneMuted(bool* aMicrophoneMuted)
{
if (AudioSystem::isMicrophoneMuted(aMicrophoneMuted)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
AudioManager::SetMicrophoneMuted(bool aMicrophoneMuted)
{
if (AudioSystem::muteMicrophone(aMicrophoneMuted)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
AudioManager::GetMasterVolume(float* aMasterVolume)
{
if (AudioSystem::getMasterVolume(aMasterVolume)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
AudioManager::SetMasterVolume(float aMasterVolume)
{
if (AudioSystem::setMasterVolume(aMasterVolume)) {
return NS_ERROR_FAILURE;
}
// For now, just set the voice volume at the same level
if (AudioSystem::setVoiceVolume(aMasterVolume)) {
return NS_ERROR_FAILURE;
}
if (IsFmRadioAudioOn() && AudioSystem::setFmVolume(aMasterVolume)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
AudioManager::GetMasterMuted(bool* aMasterMuted)
{
if (AudioSystem::getMasterMute(aMasterMuted)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
AudioManager::SetMasterMuted(bool aMasterMuted)
{
if (AudioSystem::setMasterMute(aMasterMuted)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
AudioManager::GetPhoneState(int32_t* aState)
{
*aState = mPhoneState;
return NS_OK;
}
NS_IMETHODIMP
AudioManager::SetPhoneState(int32_t aState)
{
if (AudioSystem::setPhoneState(aState)) {
return NS_ERROR_FAILURE;
}
mPhoneState = aState;
return NS_OK;
}
//
// Kids, don't try this at home. We want this to link and work on
// both GB and ICS. Problem is, the symbol exported by audioflinger
// is different on the two gonks.
//
// So what we do here is weakly link to both of them, and then call
// whichever symbol resolves at dynamic link time (if any).
//
NS_IMETHODIMP
AudioManager::SetForceForUse(int32_t aUsage, int32_t aForce)
{
status_t status = 0;
if (static_cast<
status_t (*)(AudioSystem::force_use, AudioSystem::forced_config)
>(AudioSystem::setForceUse)) {
// Dynamically resolved the GB signature.
status = AudioSystem::setForceUse((AudioSystem::force_use)aUsage,
(AudioSystem::forced_config)aForce);
} else if (static_cast<
status_t (*)(audio_policy_force_use_t, audio_policy_forced_cfg_t)
>(AudioSystem::setForceUse)) {
// Dynamically resolved the ICS signature.
status = AudioSystem::setForceUse((audio_policy_force_use_t)aUsage,
(audio_policy_forced_cfg_t)aForce);
}
return status ? NS_ERROR_FAILURE : NS_OK;
}
NS_IMETHODIMP
AudioManager::GetForceForUse(int32_t aUsage, int32_t* aForce) {
if (static_cast<
AudioSystem::forced_config (*)(AudioSystem::force_use)
>(AudioSystem::getForceUse)) {
// Dynamically resolved the GB signature.
*aForce = AudioSystem::getForceUse((AudioSystem::force_use)aUsage);
} else if (static_cast<
audio_policy_forced_cfg_t (*)(audio_policy_force_use_t)
>(AudioSystem::getForceUse)) {
// Dynamically resolved the ICS signature.
*aForce = AudioSystem::getForceUse((audio_policy_force_use_t)aUsage);
}
return NS_OK;
}
NS_IMETHODIMP
AudioManager::GetFmRadioAudioEnabled(bool *aFmRadioAudioEnabled)
{
*aFmRadioAudioEnabled = IsFmRadioAudioOn();
return NS_OK;
}
NS_IMETHODIMP
AudioManager::SetFmRadioAudioEnabled(bool aFmRadioAudioEnabled)
{
if (static_cast<
status_t (*) (AudioSystem::audio_devices, AudioSystem::device_connection_state, const char *)
>(AudioSystem::setDeviceConnectionState)) {
AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_OUT_FM,
aFmRadioAudioEnabled ? AUDIO_POLICY_DEVICE_STATE_AVAILABLE :
AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, "");
InternalSetAudioRoutes(GetCurrentSwitchState(SWITCH_HEADPHONES));
return NS_OK;
} else {
return NS_ERROR_NOT_IMPLEMENTED;
}
}