/**
* ISR handler.
*
* @return BOOLEAN Indicates whether the IRQ came from us (TRUE) or not (FALSE).
* @param pInterrupt Interrupt that was triggered.
* @param pServiceContext Context specific pointer.
*/
BOOLEAN vboxguestwinIsrHandler(PKINTERRUPT pInterrupt, PVOID pServiceContext)
{
PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pServiceContext;
if (pDevExt == NULL)
return FALSE;
/*Log(("VBoxGuest::vboxguestwinGuestIsrHandler: pDevExt = 0x%p, pVMMDevMemory = 0x%p\n",
pDevExt, pDevExt ? pDevExt->pVMMDevMemory : NULL));*/
/* Enter the common ISR routine and do the actual work. */
BOOLEAN fIRQTaken = VBoxGuestCommonISR(pDevExt);
/* If we need to wake up some events we do that in a DPC to make
* sure we're called at the right IRQL. */
if (fIRQTaken)
{
Log(("VBoxGuest::vboxguestwinGuestIsrHandler: IRQ was taken! pInterrupt = 0x%p, pDevExt = 0x%p\n",
pInterrupt, pDevExt));
if (ASMAtomicUoReadU32(&pDevExt->u32MousePosChangedSeq) || !RTListIsEmpty(&pDevExt->WakeUpList))
{
Log(("VBoxGuest::vboxguestwinGuestIsrHandler: Requesting DPC ...\n"));
IoRequestDpc(pDevExt->win.s.pDeviceObject, pDevExt->win.s.pCurrentIrp, NULL);
}
}
return fIRQTaken;
}
/**
* Interrupt service routine.
*
* @returns Whether the interrupt was from VMMDev.
* @param pvState Opaque pointer to the device state.
*/
static int32 VBoxGuestHaikuISR(void *pvState)
{
LogFlow((MODULE_NAME ":VBoxGuestHaikuISR pvState=%p\n", pvState));
bool fOurIRQ = VBoxGuestCommonISR(&g_DevExt);
return fOurIRQ ? B_HANDLED_INTERRUPT : B_UNHANDLED_INTERRUPT;
}
/**
* Interrupt Service Routine for VMMDev.
*
* @param Arg Private data (unused, will be NULL).
* @returns DDI_INTR_CLAIMED if it's our interrupt, DDI_INTR_UNCLAIMED if it isn't.
*/
static uint_t VBoxGuestSolarisISR(caddr_t Arg)
{
LogFlow((DEVICE_NAME "::ISR:\n"));
mutex_enter(&g_IrqMtx);
bool fOurIRQ = VBoxGuestCommonISR(&g_DevExt);
mutex_exit(&g_IrqMtx);
return fOurIRQ ? DDI_INTR_CLAIMED : DDI_INTR_UNCLAIMED;
}
/**
* Callback triggered when interrupt occurs.
*/
static bool
directInterruptHandler(OSObject *pOwner, IOFilterInterruptEventSource *pSrc)
{
if (!pSrc)
return false;
bool fTaken = VBoxGuestCommonISR(&g_DevExt);
if (!fTaken) /** @todo r=bird: This looks bogus as we might actually be sharing interrupts with someone. */
PDEBUG("VBoxGuestCommonISR error\n");
return fTaken;
}
/**
* Callback triggered when interrupt occurs.
*/
static bool
checkForInterrupt(OSObject *pOwner, IOFilterInterruptEventSource *pSrc)
{
if (!pSrc)
return false;
bool fTaken = VBoxGuestCommonISR(&g_DevExt);
if (!fTaken)
printf("VBoxGuestCommonISR error\n");
return fTaken;
}
static irqreturn_t vboxguestLinuxISR(int iIrrq, void *pvDevId, struct pt_regs *pRegs)
#endif
{
bool fTaken = VBoxGuestCommonISR(&g_DevExt);
return IRQ_RETVAL(fTaken);
}