#include <IOKit/audio/IOAudioDebug.h>
#include <IOKit/audio/IOAudioDevice.h>
#include <IOKit/audio/IOAudioEngine.h>
#include <IOKit/audio/IOAudioPort.h>
#include <IOKit/audio/IOAudioTypes.h>
#include <IOKit/audio/IOAudioDefines.h>
#include <IOKit/audio/IOAudioLevelControl.h>
#include <IOKit/audio/IOAudioToggleControl.h>
#include <IOKit/IOWorkLoop.h>
#include <IOKit/IOCommandGate.h>
#include <IOKit/IOTimerEventSource.h>
#include <IOKit/IOKitKeys.h>
#include <libkern/c++/OSDictionary.h>
#include <libkern/c++/OSSet.h>
#include <libkern/c++/OSCollectionIterator.h>
#define NUM_POWER_STATES 2
class IOAudioTimerEvent : public OSObject
{
friend class IOAudioDevice;
OSDeclareDefaultStructors(IOAudioTimerEvent)
protected:
OSObject * target;
IOAudioDevice::TimerEvent event;
AbsoluteTime interval;
};
OSDefineMetaClassAndStructors(IOAudioTimerEvent, OSObject)
class IOAudioEngineEntry : public OSObject
{
friend class IOAudioDevice;
OSDeclareDefaultStructors(IOAudioEngineEntry);
protected:
IOAudioEngine *audioEngine;
bool shouldStopAudioEngine;
};
OSDefineMetaClassAndStructors(IOAudioEngineEntry, OSObject)
#define super IOService
OSDefineMetaClassAndStructors(IOAudioDevice, IOService)
OSMetaClassDefineReservedUsed(IOAudioDevice, 0);
OSMetaClassDefineReservedUsed(IOAudioDevice, 1);
OSMetaClassDefineReservedUsed(IOAudioDevice, 2);
OSMetaClassDefineReservedUsed(IOAudioDevice, 3);
OSMetaClassDefineReservedUsed(IOAudioDevice, 4);
OSMetaClassDefineReservedUsed(IOAudioDevice, 5);
OSMetaClassDefineReservedUnused(IOAudioDevice, 6);
OSMetaClassDefineReservedUnused(IOAudioDevice, 7);
OSMetaClassDefineReservedUnused(IOAudioDevice, 8);
OSMetaClassDefineReservedUnused(IOAudioDevice, 9);
OSMetaClassDefineReservedUnused(IOAudioDevice, 10);
OSMetaClassDefineReservedUnused(IOAudioDevice, 11);
OSMetaClassDefineReservedUnused(IOAudioDevice, 12);
OSMetaClassDefineReservedUnused(IOAudioDevice, 13);
OSMetaClassDefineReservedUnused(IOAudioDevice, 14);
OSMetaClassDefineReservedUnused(IOAudioDevice, 15);
OSMetaClassDefineReservedUnused(IOAudioDevice, 16);
OSMetaClassDefineReservedUnused(IOAudioDevice, 17);
OSMetaClassDefineReservedUnused(IOAudioDevice, 18);
OSMetaClassDefineReservedUnused(IOAudioDevice, 19);
OSMetaClassDefineReservedUnused(IOAudioDevice, 20);
OSMetaClassDefineReservedUnused(IOAudioDevice, 21);
OSMetaClassDefineReservedUnused(IOAudioDevice, 22);
OSMetaClassDefineReservedUnused(IOAudioDevice, 23);
OSMetaClassDefineReservedUnused(IOAudioDevice, 24);
OSMetaClassDefineReservedUnused(IOAudioDevice, 25);
OSMetaClassDefineReservedUnused(IOAudioDevice, 26);
OSMetaClassDefineReservedUnused(IOAudioDevice, 27);
OSMetaClassDefineReservedUnused(IOAudioDevice, 28);
OSMetaClassDefineReservedUnused(IOAudioDevice, 29);
OSMetaClassDefineReservedUnused(IOAudioDevice, 30);
OSMetaClassDefineReservedUnused(IOAudioDevice, 31);
void IOAudioDevice::setDeviceModelName(const char *modelName)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::setDeviceModelName(%p)", this, modelName);
if (modelName) {
setProperty(kIOAudioDeviceModelIDKey, modelName);
}
}
void IOAudioDevice::setDeviceTransportType(const UInt32 transportType)
{
if (transportType) {
setProperty(kIOAudioDeviceTransportTypeKey, transportType, 32);
}
}
IOReturn IOAudioDevice::setAggressiveness(unsigned long type, unsigned long newLevel)
{
return super::setAggressiveness(type, newLevel);
}
void IOAudioDevice::setIdleAudioSleepTime(unsigned long long sleepDelay)
{
assert(reserved);
audioDebugIOLog(3, "IOAudioDevice[%p]::setIdleAudioSleepTime: sleepDelay = %lx%lx", this, (UInt32)(sleepDelay >> 32), (UInt32)sleepDelay);
if (reserved->idleSleepDelayTime != sleepDelay) {
reserved->idleSleepDelayTime = sleepDelay;
scheduleIdleAudioSleep();
}
if (reserved->idleSleepDelayTime == kNoIdleAudioPowerDown) {
if (reserved->idleTimer) {
reserved->idleTimer->cancelTimeout();
}
}
}
void IOAudioDevice::scheduleIdleAudioSleep(void)
{
AbsoluteTime fireTime;
UInt64 nanos;
assert(reserved);
audioDebugIOLog(3, "IOAudioDevice[%p]::scheduleIdleAudioSleep: idleSleepDelayTime = %lx%lx", this, (UInt32)(reserved->idleSleepDelayTime >> 32), (UInt32)reserved->idleSleepDelayTime);
if (reserved->idleSleepDelayTime == 0) {
initiatePowerStateChange();
} else {
if (!reserved->idleTimer && reserved->idleSleepDelayTime != kNoIdleAudioPowerDown) {
reserved->idleTimer = IOTimerEventSource::timerEventSource(this, idleAudioSleepHandlerTimer);
if (!reserved->idleTimer) {
return;
}
workLoop->addEventSource(reserved->idleTimer);
}
if (reserved->idleSleepDelayTime != kNoIdleAudioPowerDown) {
clock_get_uptime(&fireTime);
absolutetime_to_nanoseconds(fireTime, &nanos);
nanos += reserved->idleSleepDelayTime;
nanoseconds_to_absolutetime(nanos, &fireTime);
reserved->idleTimer->wakeAtTime(fireTime); }
}
return;
}
void IOAudioDevice::idleAudioSleepHandlerTimer(OSObject *owner, IOTimerEventSource *sender)
{
IOAudioDevice * audioDevice;
audioDevice = OSDynamicCast(IOAudioDevice, owner);
assert(audioDevice);
audioDebugIOLog(3, "IOAudioDevice[%p]idleAudioSleepHandlerTimer: pendingPowerState = %d, idleSleepDelayTime = %lx%lx", audioDevice, audioDevice->pendingPowerState, (UInt32)(audioDevice->reserved->idleSleepDelayTime >> 32), (UInt32)audioDevice->reserved->idleSleepDelayTime);
if (audioDevice->reserved->idleSleepDelayTime != kNoIdleAudioPowerDown &&
audioDevice->getPendingPowerState () == kIOAudioDeviceIdle) {
audioDevice->initiatePowerStateChange();
}
return;
}
void IOAudioDevice::setConfigurationApplicationBundle(const char *bundleID)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::setConfigurationApplicationBundle(%p)", this, bundleID);
if (bundleID) {
setProperty(kIOAudioDeviceConfigurationAppKey, bundleID);
}
}
void IOAudioDevice::setDeviceCanBeDefault(UInt32 defaultsFlags)
{
setProperty(kIOAudioDeviceCanBeDefaults, defaultsFlags, sizeof(UInt32) * 8);
}
bool IOAudioDevice::init(OSDictionary *properties)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::init(%p)", this, properties);
if (!super::init(properties)) {
return false;
}
reserved = (ExpansionData *)IOMalloc (sizeof(struct ExpansionData));
if (!reserved) {
return false;
} else {
reserved->idleSleepDelayTime = 0;
reserved->idleTimer = NULL;
}
audioEngines = OSArray::withCapacity(2);
if (!audioEngines) {
return false;
}
audioPorts = OSSet::withCapacity(1);
if (!audioPorts) {
return false;
}
workLoop = IOWorkLoop::workLoop();
if (!workLoop) {
return false;
}
familyManagePower = true;
asyncPowerStateChangeInProgress = false;
currentPowerState = kIOAudioDeviceIdle;
pendingPowerState = kIOAudioDeviceIdle;
numRunningAudioEngines = 0;
return true;
}
void IOAudioDevice::free()
{
audioDebugIOLog(3, "IOAudioDevice[%p]::free()", this);
if (audioEngines) {
deactivateAllAudioEngines();
audioEngines->release();
audioEngines = 0;
}
if (audioPorts) {
detachAllAudioPorts();
audioPorts->release();
audioPorts = 0;
}
if (timerEvents) {
timerEvents->release();
timerEvents = 0;
}
if (timerEventSource) {
if (workLoop) {
workLoop->removeEventSource(timerEventSource);
}
timerEventSource->release();
timerEventSource = NULL;
}
if (reserved->idleTimer) {
if (workLoop) {
workLoop->removeEventSource(reserved->idleTimer);
}
reserved->idleTimer->release();
reserved->idleTimer = NULL;
}
if (commandGate) {
if (workLoop) {
workLoop->removeEventSource(commandGate);
}
commandGate->release();
commandGate = NULL;
}
if (workLoop) {
workLoop->release();
workLoop = NULL;
}
if (reserved) {
IOFree (reserved, sizeof(struct ExpansionData));
}
super::free();
}
bool IOAudioDevice::initHardware(IOService *provider)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::initHardware(%p)", this, provider);
return true;
}
bool IOAudioDevice::start(IOService *provider)
{
static IOPMPowerState powerStates[2] = {
{1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{1, IOPMDeviceUsable, IOPMPowerOn, IOPMPowerOn, 0, 0, 0, 0, 0, 0, 0, 0}
};
audioDebugIOLog(3, "IOAudioDevice[%p]::start(%p)", this, provider);
if (!super::start(provider)) {
return false;
}
if (provider->getProperty("preserveIODeviceTree") != 0) { provider->callPlatformFunction("mac-io-publishChildren", 0, (void*)this, (void*)0, (void*)0, (void*)0);
}
assert(workLoop);
commandGate = IOCommandGate::commandGate(this);
if (!commandGate) {
return false;
}
workLoop->addEventSource(commandGate);
setDeviceCanBeDefault (kIOAudioDeviceCanBeDefaultInput | kIOAudioDeviceCanBeDefaultOutput | kIOAudioDeviceCanBeSystemOutput);
if (!initHardware(provider)) {
return false;
}
if (familyManagePower) {
PMinit();
provider->joinPMtree(this);
if (pm_vars != NULL) {
duringStartup = true;
registerPowerDriver(this, powerStates, NUM_POWER_STATES);
changePowerStateTo(1);
duringStartup = false;
}
}
registerService();
return true;
}
void IOAudioDevice::stop(IOService *provider)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::stop(%p)", this, provider);
if (timerEventSource) {
if (workLoop) {
workLoop->removeEventSource(timerEventSource);
}
timerEventSource->release();
timerEventSource = NULL;
}
if (reserved->idleTimer) {
if (workLoop) {
workLoop->removeEventSource(reserved->idleTimer);
}
reserved->idleTimer->release();
reserved->idleTimer = NULL;
}
removeAllTimerEvents();
deactivateAllAudioEngines();
detachAllAudioPorts();
if (familyManagePower) {
if (pm_vars != NULL) {
PMstop();
}
}
if (commandGate) {
if (workLoop) {
workLoop->removeEventSource(commandGate);
}
commandGate->release();
commandGate = NULL;
}
super::stop(provider);
}
bool IOAudioDevice::willTerminate(IOService *provider, IOOptionBits options)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::willTerminate(%p, %lx)", this, provider, options);
OSCollectionIterator *engineIterator;
engineIterator = OSCollectionIterator::withCollection(audioEngines);
if (engineIterator) {
IOAudioEngine *audioEngine;
while (audioEngine = OSDynamicCast(IOAudioEngine, engineIterator->getNextObject())) {
audioEngine->setState(kIOAudioEngineStopped);
}
engineIterator->release();
}
return super::willTerminate(provider, options);
}
void IOAudioDevice::setFamilyManagePower(bool manage)
{
familyManagePower = manage;
}
IOReturn IOAudioDevice::setPowerState(unsigned long powerStateOrdinal, IOService *device)
{
IOReturn result = IOPMCannotRaisePower;
audioDebugIOLog(3, "IOAudioDevice[%p]::setPowerState(%lu, %p)", this, powerStateOrdinal, device);
if (!duringStartup) {
if (powerStateOrdinal >= NUM_POWER_STATES) {
result = IOPMNoSuchState;
} else {
IOCommandGate *cg;
cg = getCommandGate();
if (cg) {
result = cg->runAction(setPowerStateAction, (void *)powerStateOrdinal, (void *)device);
}
}
}
return result;
}
IOReturn IOAudioDevice::setPowerStateAction(OSObject *owner, void *arg1, void *arg2, void *arg3, void *arg4)
{
IOReturn result = kIOReturnBadArgument;
if (owner) {
IOAudioDevice *audioDevice = OSDynamicCast(IOAudioDevice, owner);
if (audioDevice) {
result = audioDevice->protectedSetPowerState((unsigned long)arg1, (IOService *)arg2);
}
}
return result;
}
IOReturn IOAudioDevice::protectedSetPowerState(unsigned long powerStateOrdinal, IOService *device)
{
IOReturn result = IOPMAckImplied;
audioDebugIOLog(3, "IOAudioDevice[%p]::protectedSetPowerState(%lu, %p)", this, powerStateOrdinal, device);
if (asyncPowerStateChangeInProgress) {
waitForPendingPowerStateChange();
}
if (powerStateOrdinal == 0) { if (getPowerState() != kIOAudioDeviceSleep) {
pendingPowerState = kIOAudioDeviceSleep;
if (audioEngines && (numRunningAudioEngines > 0)) {
OSCollectionIterator *audioEngineIterator;
audioEngineIterator = OSCollectionIterator::withCollection(audioEngines);
if (audioEngineIterator) {
IOAudioEngine *audioEngine;
while (audioEngine = (IOAudioEngine *)audioEngineIterator->getNextObject()) {
if (audioEngine->getState() == kIOAudioEngineRunning) {
audioEngine->pauseAudioEngine();
}
}
audioEngineIterator->release();
}
}
}
} else if (powerStateOrdinal == 1) { if (getPowerState() == kIOAudioDeviceSleep) { if (numRunningAudioEngines == 0) {
pendingPowerState = kIOAudioDeviceIdle;
} else {
pendingPowerState = kIOAudioDeviceActive;
}
}
}
if (currentPowerState != pendingPowerState) {
UInt32 microsecondsUntilComplete = 0;
result = initiatePowerStateChange(µsecondsUntilComplete);
if (result == kIOReturnSuccess) {
result = microsecondsUntilComplete;
}
}
return result;
}
void IOAudioDevice::waitForPendingPowerStateChange()
{
audioDebugIOLog(3, "IOAudioDevice[%p]::waitForPendingPowerStateChange()", this);
if (asyncPowerStateChangeInProgress) {
IOCommandGate *cg;
cg = getCommandGate();
if (cg) {
cg->commandSleep((void *)&asyncPowerStateChangeInProgress);
assert(!asyncPowerStateChangeInProgress);
} else {
IOLog("IOAudioDevice[%p]::waitForPendingPowerStateChange() - internal error - unable to get the command gate.\n", this);
return;
}
}
}
IOReturn IOAudioDevice::initiatePowerStateChange(UInt32 *microsecondsUntilComplete)
{
IOReturn result = kIOReturnSuccess;
audioDebugIOLog(3, "IOAudioDevice[%p]::initiatePowerStateChange(%p) - current = %d - pending = %d", this, microsecondsUntilComplete, currentPowerState, pendingPowerState);
if (currentPowerState != pendingPowerState) {
UInt32 localMicsUntilComplete, *micsUntilComplete = NULL;
if (microsecondsUntilComplete != NULL) {
micsUntilComplete = microsecondsUntilComplete;
} else {
micsUntilComplete = &localMicsUntilComplete;
}
*micsUntilComplete = 0;
asyncPowerStateChangeInProgress = true;
result = performPowerStateChange(currentPowerState, pendingPowerState, micsUntilComplete);
if (result == kIOReturnSuccess) {
if (*micsUntilComplete == 0) {
asyncPowerStateChangeInProgress = false;
protectedCompletePowerStateChange();
}
} else {
asyncPowerStateChangeInProgress = false;
}
}
return result;
}
IOReturn IOAudioDevice::completePowerStateChange()
{
IOReturn result = kIOReturnError;
IOCommandGate *cg;
cg = getCommandGate();
if (cg) {
result = cg->runAction(completePowerStateChangeAction);
}
return result;
}
IOReturn IOAudioDevice::completePowerStateChangeAction(OSObject *owner, void *arg1, void *arg2, void *arg3, void *arg4)
{
IOReturn result = kIOReturnBadArgument;
if (owner) {
IOAudioDevice *audioDevice = OSDynamicCast(IOAudioDevice, owner);
if (audioDevice) {
result = audioDevice->protectedCompletePowerStateChange();
}
}
return result;
}
IOReturn IOAudioDevice::protectedCompletePowerStateChange()
{
IOReturn result = kIOReturnSuccess;
audioDebugIOLog(3, "IOAudioDevice[%p]::protectedCompletePowerStateChange() - current = %d - pending = %d", this, currentPowerState, pendingPowerState);
if (currentPowerState != pendingPowerState) {
IOCommandGate *cg;
cg = getCommandGate();
if (currentPowerState == kIOAudioDeviceSleep) {
clock_get_uptime(&previousTimerFire);
SUB_ABSOLUTETIME(&previousTimerFire, &minimumInterval);
if (timerEvents && (timerEvents->getCount() > 0)) {
dispatchTimerEvents(true);
}
if (audioEngines && (numRunningAudioEngines > 0)) {
OSCollectionIterator *audioEngineIterator;
audioEngineIterator = OSCollectionIterator::withCollection(audioEngines);
if (audioEngineIterator) {
IOAudioEngine *audioEngine;
while (audioEngine = (IOAudioEngine *)audioEngineIterator->getNextObject()) {
if (audioEngine->getState() == kIOAudioEnginePaused) {
audioEngine->resumeAudioEngine();
}
}
audioEngineIterator->release();
}
}
}
if (asyncPowerStateChangeInProgress) {
acknowledgeSetPowerState();
asyncPowerStateChangeInProgress = false;
if (cg) {
cg->commandWakeup((void *)&asyncPowerStateChangeInProgress);
}
}
currentPowerState = pendingPowerState;
if (cg) {
cg->commandWakeup(¤tPowerState);
}
}
return result;
}
IOReturn IOAudioDevice::performPowerStateChange(IOAudioDevicePowerState oldPowerState,
IOAudioDevicePowerState newPowerState,
UInt32 *microsecondsUntilComplete)
{
return kIOReturnSuccess;
}
IOAudioDevicePowerState IOAudioDevice::getPowerState()
{
return currentPowerState;
}
IOAudioDevicePowerState IOAudioDevice::getPendingPowerState()
{
return pendingPowerState;
}
void IOAudioDevice::audioEngineStarting()
{
audioDebugIOLog(3, "IOAudioDevice[%p]::audioEngineStarting() - numRunningAudioEngines = %ld", this, numRunningAudioEngines + 1);
numRunningAudioEngines++;
if (numRunningAudioEngines == 1) { if (getPowerState() == kIOAudioDeviceIdle) { if (asyncPowerStateChangeInProgress) { waitForPendingPowerStateChange();
}
pendingPowerState = kIOAudioDeviceActive;
initiatePowerStateChange();
if (asyncPowerStateChangeInProgress) { waitForPendingPowerStateChange();
}
} else if (getPendingPowerState () != kIOAudioDeviceSleep) {
pendingPowerState = kIOAudioDeviceActive;
}
}
}
void IOAudioDevice::audioEngineStopped()
{
audioDebugIOLog(3, "IOAudioDevice[%p]::audioEngineStopped() - numRunningAudioEngines = %ld", this, numRunningAudioEngines - 1);
numRunningAudioEngines--;
if (numRunningAudioEngines == 0) { if (getPowerState() == kIOAudioDeviceActive) { if (asyncPowerStateChangeInProgress) { waitForPendingPowerStateChange();
}
pendingPowerState = kIOAudioDeviceIdle;
scheduleIdleAudioSleep();
}
}
}
IOWorkLoop *IOAudioDevice::getWorkLoop() const
{
return workLoop;
}
IOCommandGate *IOAudioDevice::getCommandGate() const
{
return commandGate;
}
void IOAudioDevice::setDeviceName(const char *deviceName)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::setDeviceName(%p)", this, deviceName);
if (deviceName) {
setProperty(kIOAudioDeviceNameKey, deviceName);
if (NULL == getProperty (kIOAudioDeviceModelIDKey)) {
int stringLen;
char * string;
stringLen = 1;
stringLen += strlen (deviceName) + 1;
stringLen += strlen (getName ());
string = (char *)IOMalloc (stringLen);
strcpy (string, getName ());
strcat (string, ":");
strcat (string, deviceName);
setDeviceModelName (string);
IOFree (string, stringLen);
}
}
}
void IOAudioDevice::setDeviceShortName(const char *shortName)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::setDeviceShortName(%p)", this, shortName);
if (shortName) {
setProperty(kIOAudioDeviceShortNameKey, shortName);
}
}
void IOAudioDevice::setManufacturerName(const char *manufacturerName)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::setManufacturerName(%p)", this, manufacturerName);
if (manufacturerName) {
setProperty(kIOAudioDeviceManufacturerNameKey, manufacturerName);
}
}
IOReturn IOAudioDevice::activateAudioEngine(IOAudioEngine *audioEngine)
{
return activateAudioEngine(audioEngine, true);
}
IOReturn IOAudioDevice::activateAudioEngine(IOAudioEngine *audioEngine, bool shouldStartAudioEngine)
{
audioDebugIOLog(3, "IOAudioDevice[%p]::activateAudioEngine(%p, %d)", this, audioEngine, shouldStartAudioEngine);
if (!audioEngine || !audioEngines) {
return kIOReturnBadArgument;
}
if (!audioEngine->attach(this)) {
return kIOReturnError;
}
if (shouldStartAudioEngine) {
if (!audioEngine->start(this)) {
audioEngine->detach(this);
return kIOReturnError;
}
}
audioEngine->deviceStartedAudioEngine = shouldStartAudioEngine;
audioEngines->setObject(audioEngine);
audioEngine->setIndex(audioEngines->getCount()-1);
audioEngine->registerService();
return kIOReturnSuccess;
}
void IOAudioDevice::deactivateAllAudioEngines()
{
OSCollectionIterator *engineIterator;
audioDebugIOLog(3, "IOAudioDevice[%p]::deactivateAllAudioEngines()", this);
if (!audioEngines) {
return;
}
engineIterator = OSCollectionIterator::withCollection(audioEngines);
if (engineIterator) {
IOAudioEngine *audioEngine;
while (audioEngine = OSDynamicCast(IOAudioEngine, engineIterator->getNextObject())) {
audioEngine->stopAudioEngine();
if (!isInactive()) {
audioEngine->terminate();
}
}
engineIterator->release();
}
audioEngines->flushCollection();
}
IOReturn IOAudioDevice::attachAudioPort(IOAudioPort *port, IORegistryEntry *parent, IORegistryEntry *child)
{
return kIOReturnSuccess;
}
void IOAudioDevice::detachAllAudioPorts()
{
}
void IOAudioDevice::flushAudioControls()
{
audioDebugIOLog(3, "IOAudioDevice[%p]::flushAudioControls()", this);
if (audioPorts) {
OSCollectionIterator *portIterator;
portIterator = OSCollectionIterator::withCollection(audioPorts);
if (portIterator) {
IOAudioPort *audioPort;
while (audioPort = (IOAudioPort *)portIterator->getNextObject()) {
if (OSDynamicCast(IOAudioPort, audioPort)) {
if (audioPort->audioControls) {
OSCollectionIterator *controlIterator;
controlIterator = OSCollectionIterator::withCollection(audioPort->audioControls);
if (controlIterator) {
IOAudioControl *audioControl;
while (audioControl = (IOAudioControl *)controlIterator->getNextObject()) {
audioControl->flushValue();
}
controlIterator->release();
}
}
}
}
portIterator->release();
}
}
if (audioEngines) {
OSCollectionIterator *audioEngineIterator;
audioEngineIterator = OSCollectionIterator::withCollection(audioEngines);
if (audioEngineIterator) {
IOAudioEngine *audioEngine;
while (audioEngine = (IOAudioEngine *)audioEngineIterator->getNextObject()) {
if (audioEngine->defaultAudioControls) {
OSCollectionIterator *controlIterator;
controlIterator = OSCollectionIterator::withCollection(audioEngine->defaultAudioControls);
if (controlIterator) {
IOAudioControl *audioControl;
while (audioControl = (IOAudioControl *)controlIterator->getNextObject()) {
audioControl->flushValue();
}
controlIterator->release();
}
}
}
audioEngineIterator->release();
}
}
}
IOReturn IOAudioDevice::addTimerEvent(OSObject *target, TimerEvent event, AbsoluteTime interval)
{
IOReturn result = kIOReturnSuccess;
IOAudioTimerEvent *newEvent;
#ifdef DEBUG
UInt64 newInt;
absolutetime_to_nanoseconds(interval, &newInt);
audioDebugIOLog(3, "IOAudioDevice::addTimerEvent(%p, %p, %lums)", target, event, (UInt32)(newInt/1000000));
#endif
if (!event) {
return kIOReturnBadArgument;
}
newEvent = new IOAudioTimerEvent;
newEvent->target = target;
newEvent->event = event;
newEvent->interval = interval;
if (!timerEvents) {
IOWorkLoop *wl;
timerEvents = OSDictionary::withObjects((const OSObject **)&newEvent, (const OSSymbol **)&target, 1, 1);
timerEventSource = IOTimerEventSource::timerEventSource(this, timerFired);
wl = getWorkLoop();
if (!timerEventSource || !wl || (wl->addEventSource(timerEventSource) != kIOReturnSuccess)) {
return kIOReturnError;
}
timerEventSource->enable();
} else {
timerEvents->setObject((OSSymbol *)target, newEvent);
}
newEvent->release();
assert(timerEvents);
if (timerEvents->getCount() == 1) {
AbsoluteTime nextTimerFire;
minimumInterval = interval;
assert(timerEventSource);
clock_get_uptime(&previousTimerFire);
nextTimerFire = previousTimerFire;
ADD_ABSOLUTETIME(&nextTimerFire, &minimumInterval);
result = timerEventSource->wakeAtTime(nextTimerFire);
#ifdef DEBUG
{
UInt64 nanos;
absolutetime_to_nanoseconds(minimumInterval, &nanos);
audioDebugIOLog(5, "IOAudioDevice::addTimerEvent() - scheduling timer to fire in %lums - previousTimerFire = {%ld,%lu}", (UInt32) (nanos / 1000000), previousTimerFire.hi, previousTimerFire.lo);
}
#endif
if (result != kIOReturnSuccess) {
IOLog("IOAudioDevice::addTimerEvent() - error 0x%x setting timer wake time - timer events will be disabled.\n", result);
}
} else if (CMP_ABSOLUTETIME(&interval, &minimumInterval) < 0) {
AbsoluteTime currentNextFire, desiredNextFire;
clock_get_uptime(&desiredNextFire);
ADD_ABSOLUTETIME(&desiredNextFire, &interval);
currentNextFire = previousTimerFire;
ADD_ABSOLUTETIME(¤tNextFire, &minimumInterval);
minimumInterval = interval;
if (CMP_ABSOLUTETIME(&desiredNextFire, ¤tNextFire) < 0) {
assert(timerEventSource);
#ifdef DEBUG
{
UInt64 nanos;
absolutetime_to_nanoseconds(interval, &nanos);
audioDebugIOLog(5, "IOAudioDevice::addTimerEvent() - scheduling timer to fire in %lums at {%ld,%lu} - previousTimerFire = {%ld,%lu}", (UInt32) (nanos / 1000000), desiredNextFire.hi, desiredNextFire.lo, previousTimerFire.hi, previousTimerFire.lo);
}
#endif
result = timerEventSource->wakeAtTime(desiredNextFire);
if (result != kIOReturnSuccess) {
IOLog("IOAudioDevice::addTimerEvent() - error 0x%x setting timer wake time - timer events will be disabled.\n", result);
}
}
}
return result;
}
void IOAudioDevice::removeTimerEvent(OSObject *target)
{
IOAudioTimerEvent *removedTimerEvent;
audioDebugIOLog(3, "IOAudioDevice::removeTimerEvent(%p)", target);
if (!timerEvents) {
return;
}
removedTimerEvent = (IOAudioTimerEvent *)timerEvents->getObject((const OSSymbol *)target);
if (removedTimerEvent) {
removedTimerEvent->retain();
timerEvents->removeObject((const OSSymbol *)target);
if (timerEvents->getCount() == 0) {
assert(timerEventSource);
timerEventSource->cancelTimeout();
} else if (CMP_ABSOLUTETIME(&removedTimerEvent->interval, &minimumInterval) <= 0) { OSCollectionIterator *iterator;
IOAudioTimerEvent *timerEvent;
AbsoluteTime nextTimerFire;
OSSymbol *obj;
iterator = OSCollectionIterator::withCollection(timerEvents);
if (iterator) {
obj = (OSSymbol *)iterator->getNextObject();
timerEvent = (IOAudioTimerEvent *)timerEvents->getObject(obj);
if (timerEvent) {
minimumInterval = timerEvent->interval;
while ((obj = (OSSymbol *)iterator->getNextObject()) && (timerEvent = (IOAudioTimerEvent *)timerEvents->getObject(obj))) {
if (CMP_ABSOLUTETIME(&timerEvent->interval, &minimumInterval) < 0) {
minimumInterval = timerEvent->interval;
}
}
}
iterator->release();
}
assert(timerEventSource);
nextTimerFire = previousTimerFire;
ADD_ABSOLUTETIME(&nextTimerFire, &minimumInterval);
#ifdef DEBUG
{
AbsoluteTime now, then;
UInt64 nanos, mi;
clock_get_uptime(&now);
then = nextTimerFire;
absolutetime_to_nanoseconds(minimumInterval, &mi);
if (CMP_ABSOLUTETIME(&then, &now)) {
SUB_ABSOLUTETIME(&then, &now);
absolutetime_to_nanoseconds(then, &nanos);
audioDebugIOLog(5, "IOAudioDevice::removeTimerEvent() - scheduling timer to fire in %lums at {%ld,%lu} - previousTimerFire = {%ld,%lu} - interval=%lums", (UInt32) (nanos / 1000000), nextTimerFire.hi, nextTimerFire.lo, previousTimerFire.hi, previousTimerFire.lo, (UInt32)(mi/1000000));
} else {
SUB_ABSOLUTETIME(&now, &then);
absolutetime_to_nanoseconds(now, &nanos);
audioDebugIOLog(5, "IOAudioDevice::removeTimerEvent() - scheduling timer to fire in -%lums - previousTimerFire = {%ld,%lu}", (UInt32) (nanos / 1000000), previousTimerFire.hi, previousTimerFire.lo);
}
}
#endif
timerEventSource->wakeAtTime(nextTimerFire);
}
removedTimerEvent->release();
}
}
void IOAudioDevice::removeAllTimerEvents()
{
audioDebugIOLog(3, "IOAudioDevice[%p]::removeAllTimerEvents()", this);
if (timerEventSource) {
timerEventSource->cancelTimeout();
}
if (timerEvents) {
timerEvents->flushCollection();
}
}
void IOAudioDevice::timerFired(OSObject *target, IOTimerEventSource *sender)
{
if (target) {
IOAudioDevice *audioDevice = OSDynamicCast(IOAudioDevice, target);
if (audioDevice) {
audioDevice->dispatchTimerEvents(false);
}
}
}
void IOAudioDevice::dispatchTimerEvents(bool force)
{
if (timerEvents) {
#ifdef DEBUG
AbsoluteTime now, delta;
UInt64 nanos;
clock_get_uptime(&now);
delta = now;
SUB_ABSOLUTETIME(&delta, &previousTimerFire);
absolutetime_to_nanoseconds(delta, &nanos);
audioDebugIOLog(5, "IOAudioDevice::dispatchTimerEvents() - woke up %lums after last fire - now = {%ld,%lu} - previousFire = {%ld,%lu}", (UInt32)(nanos / 1000000), now.hi, now.lo, previousTimerFire.hi, previousTimerFire.lo);
#endif
if (force || (getPowerState() != kIOAudioDeviceSleep)) {
OSIterator *iterator;
OSSymbol *target;
AbsoluteTime nextTimerFire, currentInterval;
currentInterval = minimumInterval;
assert(timerEvents);
iterator = OSCollectionIterator::withCollection(timerEvents);
if (iterator) {
while (target = (OSSymbol *)iterator->getNextObject()) {
IOAudioTimerEvent *timerEvent;
timerEvent = (IOAudioTimerEvent *)timerEvents->getObject(target);
if (timerEvent) {
(*timerEvent->event)(timerEvent->target, this);
}
}
iterator->release();
}
if (timerEvents->getCount() > 0) {
ADD_ABSOLUTETIME(&previousTimerFire, ¤tInterval);
nextTimerFire = previousTimerFire;
ADD_ABSOLUTETIME(&nextTimerFire, &minimumInterval);
assert(timerEventSource);
#ifdef DEBUG
{
AbsoluteTime later;
UInt64 mi;
later = nextTimerFire;
absolutetime_to_nanoseconds(minimumInterval, &mi);
if (CMP_ABSOLUTETIME(&later, &now)) {
SUB_ABSOLUTETIME(&later, &now);
absolutetime_to_nanoseconds(later, &nanos);
audioDebugIOLog(5, "IOAudioDevice::dispatchTimerEvents() - scheduling timer to fire in %lums at {%ld,%lu} - previousTimerFire = {%ld,%lu} - interval=%lums", (UInt32) (nanos / 1000000), nextTimerFire.hi, nextTimerFire.lo, previousTimerFire.hi, previousTimerFire.lo, (UInt32)(mi/1000000));
} else {
SUB_ABSOLUTETIME(&now, &later);
absolutetime_to_nanoseconds(now, &nanos);
audioDebugIOLog(5, "IOAudioDevice::dispatchTimerEvents() - scheduling timer to fire in -%lums - previousTimerFire = {%ld,%lu}", (UInt32) (nanos / 1000000), previousTimerFire.hi, previousTimerFire.lo);
}
}
#endif
timerEventSource->wakeAtTime(nextTimerFire);
}
}
}
}