bool GPUSensors::start(IOService *provider)
{
HWSensorsDebugLog("Starting...");
int arg_value = 1;
if (PE_parse_boot_argn("-gpusensors-disable", &arg_value, sizeof(arg_value))) {
return false;
}
if (!provider || !super::start(provider))
return false;
if (!(pciDevice = OSDynamicCast(IOPCIDevice, provider))) {
HWSensorsFatalLog("no PCI device");
return false;
}
if (!onStartUp(provider))
return false;
if (shouldWaitForAccelerator()) {
if (!(workloop = getWorkLoop())) {
HWSensorsFatalLog("failed to obtain workloop");
return false;
}
if (!(timerEventSource = IOTimerEventSource::timerEventSource( this, OSMemberFunctionCast(IOTimerEventSource::Action, this, &GPUSensors::probeEvent)))) {
HWSensorsFatalLog("failed to initialize startup check timer event source");
return false;
}
if (kIOReturnSuccess != workloop->addEventSource(timerEventSource))
{
HWSensorsFatalLog("failed to add startup check timer event source into workloop");
timerEventSource->release();
return false;
}
timerEventSource->setTimeoutMS(100);
}
else return managedStart(provider);
return true;
}
bool GPUSensors::start(IOService *provider)
{
HWSensorsDebugLog("Starting...");
if (!provider || !super::start(provider))
return false;
if (!(pciDevice = OSDynamicCast(IOPCIDevice, provider))) {
HWSensorsFatalLog("no PCI device");
return false;
}
if (shouldWaitForAccelerator()) {
if (!(workloop = getWorkLoop())) {
HWSensorsFatalLog("failed to obtain workloop");
return false;
}
if (!(timerEventSource = IOTimerEventSource::timerEventSource( this, OSMemberFunctionCast(IOTimerEventSource::Action, this, &GPUSensors::probeEvent)))) {
HWSensorsFatalLog("failed to initialize timer event source");
return false;
}
if (kIOReturnSuccess != workloop->addEventSource(timerEventSource))
{
HWSensorsFatalLog("failed to add timer event source into workloop");
timerEventSource->release();
return false;
}
timerEventSource->setTimeoutMS(kGPUSensorsAcceleratorWaitCycle * 2);
}
else return managedStart(provider);
return true;
}
void GPUSensors::onTimeoutExceeded(IOService *provider)
{
managedStart(provider);
}
void GPUSensors::onAcceleratorFound(IOService *provider)
{
managedStart(provider);
}