IOReturn IOPlatformExpert::callPlatformFunction(const OSSymbol *functionName,
bool waitForFunction,
void *param1, void *param2,
void *param3, void *param4)
{
IOService *service, *_resources;
if (waitForFunction) {
_resources = waitForService(resourceMatching(functionName));
} else {
_resources = getResourceService();
}
if (_resources == 0) return kIOReturnUnsupported;
service = OSDynamicCast(IOService, _resources->getProperty(functionName));
if (service == 0) return kIOReturnUnsupported;
return service->callPlatformFunction(functionName, waitForFunction,
param1, param2, param3, param4);
}
bool IOHIDevice::start(IOService * provider)
{
if (!super::start(provider))
return false;
// RY: If the kIOHIDVirtualHIDevice property isn't
// set scan the up provider chain to determine if
// this is a resource or if the provider is another
// IOHIDevice. Also propegate value is property
// was already set in provider.
if (!getProperty(kIOHIDVirtualHIDevice)) {
OSObject * prop;
while (provider) {
prop = provider->copyProperty(kIOHIDVirtualHIDevice);
if ( OSDynamicCast(OSBoolean, prop) ) {
setProperty(kIOHIDVirtualHIDevice, prop);
break;
}
else if ( provider == getResourceService() || OSDynamicCast(IOHIDevice, provider) ) {
setProperty(kIOHIDVirtualHIDevice, kOSBooleanTrue);
break;
}
provider = provider->getProvider();
OSSafeReleaseNULL(prop);
}
OSSafeReleaseNULL(prop);
if ( !provider )
setProperty(kIOHIDVirtualHIDevice, kOSBooleanFalse);
}
updateProperties();
return true;
}
bool
AppleFileSystemDriver::start(IOService * provider)
{
OSDictionary * matching;
OSString * uuidString;
const char * uuidCString;
IOService * resourceService;
OSDictionary * dict;
DEBUG_LOG("%s[%p]::%s\n", getName(), this, __func__);
DEBUG_LOG("%s provider is '%s'\n", getName(), provider->getName());
do {
resourceService = getResourceService();
if (resourceService == 0) break;
uuidString = OSDynamicCast( OSString, resourceService->getProperty("boot-uuid") );
if (uuidString) {
_uuidString = uuidString;
_uuidString->retain();
uuidCString = uuidString->getCStringNoCopy();
DEBUG_LOG("%s: got UUID string '%s'\n", getName(), uuidCString);
if (uuid_parse(uuidCString, _uuid) != 0) {
IOLog("%s: Invalid UUID string '%s'\n", getName(), uuidCString);
break;
}
} else {
IOLog("%s: Error getting boot-uuid property\n", getName());
break;
}
// Match IOMedia objects matching our criteria (from kext .plist)
dict = OSDynamicCast( OSDictionary, getProperty( kMediaMatchKey ) );
if (dict == 0) break;
dict = OSDictionary::withDictionary(dict);
if (dict == 0) break;
matching = IOService::serviceMatching( "IOMedia", dict );
if ( matching == 0 )
return false;
// Retain for asynchronous matching notification
retain();
// Set up notification for newly-appearing devices.
// This will also notify us about existing devices.
_notifier = IOService::addMatchingNotification( gIOMatchedNotification, matching,
&mediaNotificationHandler,
this, 0 );
matching->release();
DEBUG_LOG("%s[%p]::%s finishes TRUE\n", getName(), this, __func__);
return true;
} while (false);
DEBUG_LOG("%s[%p]::%s finishes false\n", getName(), this, __func__);
return false;
}
