const OSString * AppleLVMVolume::getDiskName(void)
{
if (!getPropertyTable()) return NULL; // this panics if not set (unpublished)
const OSMetaClassBase * name = getProperty(kIOBSDNameKey);
if (!name) return NULL;
return OSDynamicCast(OSString, name);
}
bool ACPIBacklightPanel::start( IOService * provider )
{
DbgLog("%s::%s()\n", this->getName(),__FUNCTION__);
#if 0
if (!provider)
return false;
_provider = provider;
_provider->retain();
#endif
_lock = IORecursiveLockAlloc();
if (!_lock)
return false;
findDevices(provider);
getDeviceControl();
hasSaveMethod = hasSAVEMethod(backLightDevice);
min = 0;
max = setupIndexedLevels();
if (min == max)
{
IOLog("ACPIBacklight: setupIndexedLevels failed (min==max)... aborting");
return false;
}
// add interrupt source for delayed actions...
_workSource = IOInterruptEventSource::interruptEventSource(this, OSMemberFunctionCast(IOInterruptEventAction, this, &ACPIBacklightPanel::processWorkQueue));
if (!_workSource)
return false;
IOWorkLoop* workLoop = getWorkLoop();
if (!workLoop)
{
_workSource->release();
_workSource = NULL;
return false;
}
workLoop->addEventSource(_workSource);
_workPending = 0;
// add timer for smooth fade ins
if (_extended && !(_options & kDisableSmooth))
{
_smoothTimer = IOTimerEventSource::timerEventSource(this, OSMemberFunctionCast(IOTimerEventSource::Action, this, &ACPIBacklightPanel::onSmoothTimer));
if (_smoothTimer)
workLoop->addEventSource(_smoothTimer);
}
_cmdGate = IOCommandGate::commandGate(this);
if (_cmdGate)
workLoop->addEventSource(_cmdGate);
// initialize from properties
OSDictionary* dict = getPropertyTable();
setPropertiesGated(dict);
// write current values from smoothData
for (int i = 0; i < countof(smoothData); i++)
{
char buf[kSmoothBufSize];
snprintf(buf, sizeof(buf), kSmoothDelta, i);
setProperty(buf, smoothData[i].delta, 32);
snprintf(buf, sizeof(buf), kSmoothStep, i);
setProperty(buf, smoothData[i].step, 32);
snprintf(buf, sizeof(buf), kSmoothTimeout, i);
setProperty(buf, smoothData[i].timeout, 32);
}
#ifdef DEBUG
setProperty("CycleTest", 1, 32);
setProperty("KLVX", 1, 32);
#endif
// make the service available for clients like 'ioio'...
registerService();
// load and set default brightness level
UInt32 value = loadFromNVRAM();
DbgLog("%s: loadFromNVRAM returns %d\n", this->getName(), value);
// registerService above must be called before we wait for the BacklightHandler
if (useBacklightHandler())
{
DbgLog("%s: Waiting for BacklightHandler\n", this->getName());
waitForService(serviceMatching("BacklightHandler"));
}
// after backlight handler is in place, now we can manipulate backlight level
UInt32 current = queryACPICurentBrightnessLevel();
setProperty(kRawBrightness, current, 32);
#if 0
_provider->setProperty("AppleBacklightAtBoot", current, 32);
_provider->setProperty("AppleMaxBrightness", BCLlevels[BCLlevelsCount-1], 32);
#endif
_committed_value = _value = _from_value = levelForValue(current);
DbgLog("%s: current brightness: %d (%d)\n", this->getName(), _from_value, current);
if (-1 != value)
{
_committed_value = value;
DbgLog("%s: setting to value from nvram %d\n", this->getName(), value);
setBrightnessLevelSmooth(value);
}
_saved_value = _committed_value;
DbgLog("%s: min = %u, max = %u\n", this->getName(), min, max);
// announce version
extern kmod_info_t kmod_info;
IOLog("ACPIBacklight: Version %s starting on OS X Darwin %d.%d.\n", kmod_info.version, version_major, version_minor);
// place version/build info in ioreg properties RM,Build and RM,Version
char buf[128];
snprintf(buf, sizeof(buf), "%s %s", kmod_info.name, kmod_info.version);
setProperty("RM,Version", buf);
#ifdef DEBUG
setProperty("RM,Build", "Debug-" LOGNAME);
#else
setProperty("RM,Build", "Release-" LOGNAME);
#endif
return true;
}
