VOID
HalpInitializeNMI(
VOID
)
/*++
Routine Description:
This function is called to intialize SIO NMI interrupts.
Arguments:
None.
Return Value:
None.
--*/
{
UCHAR DataByte;
//
// Initialize the SIO NMI interrupt.
//
KeInitializeInterrupt( &HalpEisaNmiInterrupt,
HalHandleNMI,
NULL,
NULL,
EISA_NMI_VECTOR,
EISA_NMI_LEVEL,
EISA_NMI_LEVEL,
LevelSensitive,
FALSE,
0,
FALSE
);
//
// Don't fail if the interrupt cannot be connected.
//
KeConnectInterrupt( &HalpEisaNmiInterrupt );
//
// Clear the Eisa NMI disable bit. This bit is the high order of the
// NMI enable register. Note that the other bits should be left as
// they are, according to the chip's documentation.
//
//[wem] ?? Avanti simply writes zero to NmiEnable -- OK
DataByte = READ_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->NmiEnable);
((PNMI_ENABLE)(&DataByte))->NmiDisable = 0;
WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->NmiEnable, DataByte);
#ifdef DBG
DbgPrint("HalpIntializeNMI: wrote 0x%x to NmiEnable\n", DataByte);
#endif
}
VOID
HalpInitializeNMI(
VOID
)
/*++
Routine Description:
This function is called to intialize SIO NMI interrupts.
Arguments:
None.
Return Value:
None.
--*/
{
UCHAR DataByte;
//
// Initialize the SIO NMI interrupt.
//
KeInitializeInterrupt( &HalpEisaNmiInterrupt,
HalHandleNMI,
NULL,
NULL,
EISA_NMI_VECTOR,
EISA_NMI_LEVEL,
EISA_NMI_LEVEL,
LevelSensitive,
FALSE,
0,
FALSE
);
//
// Don't fail if the interrupt cannot be connected.
//
KeConnectInterrupt( &HalpEisaNmiInterrupt );
//
// Clear the Eisa NMI disable bit. This bit is the high order of the
// NMI enable register.
//
DataByte = 0;
WRITE_PORT_UCHAR(
&((PEISA_CONTROL) HalpEisaControlBase)->NmiEnable,
DataByte
);
}
/*
* @implemented
*/
NTSTATUS
NTAPI
IoConnectInterrupt(OUT PKINTERRUPT *InterruptObject,
IN PKSERVICE_ROUTINE ServiceRoutine,
IN PVOID ServiceContext,
IN PKSPIN_LOCK SpinLock,
IN ULONG Vector,
IN KIRQL Irql,
IN KIRQL SynchronizeIrql,
IN KINTERRUPT_MODE InterruptMode,
IN BOOLEAN ShareVector,
IN KAFFINITY ProcessorEnableMask,
IN BOOLEAN FloatingSave)
{
PKINTERRUPT Interrupt;
PKINTERRUPT InterruptUsed;
PIO_INTERRUPT IoInterrupt;
PKSPIN_LOCK SpinLockUsed;
BOOLEAN FirstRun;
CCHAR Count = 0;
KAFFINITY Affinity;
PAGED_CODE();
/* Assume failure */
*InterruptObject = NULL;
/* Get the affinity */
Affinity = ProcessorEnableMask & KeActiveProcessors;
while (Affinity)
{
/* Increase count */
if (Affinity & 1) Count++;
Affinity >>= 1;
}
/* Make sure we have a valid CPU count */
if (!Count) return STATUS_INVALID_PARAMETER;
/* Allocate the array of I/O Interrupts */
IoInterrupt = ExAllocatePoolWithTag(NonPagedPool,
(Count - 1) * sizeof(KINTERRUPT) +
sizeof(IO_INTERRUPT),
TAG_KINTERRUPT);
if (!IoInterrupt) return STATUS_INSUFFICIENT_RESOURCES;
/* Select which Spinlock to use */
SpinLockUsed = SpinLock ? SpinLock : &IoInterrupt->SpinLock;
/* We first start with a built-in Interrupt inside the I/O Structure */
*InterruptObject = &IoInterrupt->FirstInterrupt;
Interrupt = (PKINTERRUPT)(IoInterrupt + 1);
FirstRun = TRUE;
/* Start with a fresh structure */
RtlZeroMemory(IoInterrupt, sizeof(IO_INTERRUPT));
/* Now create all the interrupts */
Affinity = ProcessorEnableMask & KeActiveProcessors;
for (Count = 0; Affinity; Count++, Affinity >>= 1)
{
/* Check if it's enabled for this CPU */
if (Affinity & 1)
{
/* Check which one we will use */
InterruptUsed = FirstRun ? &IoInterrupt->FirstInterrupt : Interrupt;
/* Initialize it */
KeInitializeInterrupt(InterruptUsed,
ServiceRoutine,
ServiceContext,
SpinLockUsed,
Vector,
Irql,
SynchronizeIrql,
InterruptMode,
ShareVector,
Count,
FloatingSave);
/* Connect it */
if (!KeConnectInterrupt(InterruptUsed))
{
/* Check how far we got */
if (FirstRun)
{
/* We failed early so just free this */
ExFreePoolWithTag(IoInterrupt, TAG_KINTERRUPT);
}
else
{
/* Far enough, so disconnect everything */
IoDisconnectInterrupt(&IoInterrupt->FirstInterrupt);
}
/* And fail */
return STATUS_INVALID_PARAMETER;
}
/* Now we've used up our First Run */
if (FirstRun)
{
FirstRun = FALSE;
}
else
{
/* Move on to the next one */
IoInterrupt->Interrupt[(UCHAR)Count] = Interrupt++;
}
}
}
/* Return Success */
return STATUS_SUCCESS;
}
BOOLEAN
HalpInitializeLegoInterrupts(
VOID
)
/*++
Routine Description:
This routine initializes the structures necessary for EISA & PCI operations
and connects the intermediate interrupt dispatchers. It also initializes
the ISA interrupt controller; Lego's SIO-based interrupt controller is
compatible with Avanti and with the EISA interrupt contoller used on Jensen.
Arguments:
None.
Return Value:
If the second level interrupt dispatchers are connected, then a value of
TRUE is returned. Otherwise, a value of FALSE is returned.
--*/
{
KIRQL oldIrql;
//
// Initialize the EISA NMI interrupt.
//
HalpInitializeNMI();
//
// Directly connect the ISA interrupt dispatcher to the level for
// ISA bus interrupt.
//
// N.B. This vector is reserved for exclusive use by the HAL (see
// interrupt initialization.
//
PCR->InterruptRoutine[PIC_VECTOR] = HalpSioDispatch;
HalEnableSystemInterrupt(PIC_VECTOR, ISA_DEVICE_LEVEL, LevelSensitive);
//
// Initialize the interrupt dispatchers for PCI & Server management interrupts.
//
KeInitializeInterrupt( &HalpPciInterrupt,
HalpPciInterruptHandler,
(PVOID) HalpLegoPciInterruptMasterQva, // Service Context
(PKSPIN_LOCK)NULL,
PCI_VECTOR,
PCI_DEVICE_LEVEL,
PCI_DEVICE_LEVEL,
LevelSensitive,
TRUE,
0,
FALSE
);
if (!KeConnectInterrupt( &HalpPciInterrupt )) {
return(FALSE);
}
KeInitializeInterrupt( &HalpServerMgmtInterrupt,
HalpServerMgmtInterruptHandler,
(PVOID) HalpLegoServerMgmtQva, // Service Context is...
(PKSPIN_LOCK)NULL,
SERVER_MGMT_VECTOR,
SERVER_MGMT_LEVEL,
SERVER_MGMT_LEVEL,
LevelSensitive,
TRUE,
0,
FALSE
);
if (!KeConnectInterrupt( &HalpServerMgmtInterrupt )) {
return(FALSE);
}
//
// Intitialize interrupt controller
//
KeRaiseIrql(ISA_DEVICE_LEVEL, &oldIrql);
//
// We must initialize the SIO's PICs, for ISA interrupts.
//
HalpInitializeSioInterrupts();
//
// There's no initialization required for the Lego PCI interrupt
// "controller," as it's the wiring of the hardware, rather than a
// PIC like the 82c59 that directs interrupts. We do set the IMR to
// zero to disable all interrupts, initially.
//
HalpInitializePciInterrupts();
//
// Setup server management interrupts.
// On return, server management interrupts will be unmasked,
// but secondary dispatch will not be performed unless appropriate
// boolean has been set due to enable call.
//
HalpInitializeServerMgmtInterrupts();
//
// Restore the IRQL.
//
KeLowerIrql(oldIrql);
//
// Initialize the EISA DMA mode registers to a default value.
// Disable all of the DMA channels except channel 4 which is the
// cascade of channels 0-3.
//
WRITE_PORT_UCHAR(
&((PEISA_CONTROL) HalpEisaControlBase)->Dma1BasePort.AllMask,
0x0F
);
WRITE_PORT_UCHAR(
&((PEISA_CONTROL) HalpEisaControlBase)->Dma2BasePort.AllMask,
0x0E
);
return(TRUE);
}
BOOLEAN
HalpInitializeMikasaAndNoritakeInterrupts(
VOID
)
/*++
Routine Description:
This routine initializes the structures necessary for EISA & PCI operations
and connects the intermediate interrupt dispatchers. It also initializes
the EISA interrupt controller; the Mikasa and Noritake ESC interrupt
controllers are compatible with the EISA interrupt contoller used on Jensen.
Arguments:
None.
Return Value:
If the second level interrupt dispatchers are connected, then a value of
TRUE is returned. Otherwise, a value of FALSE is returned.
--*/
{
KIRQL oldIrql;
//
// Initialize the EISA NMI interrupt.
//
HalpInitializeNMI();
//
// Initialize the interrupt dispatchers for PCI & EISA I/O interrupts.
//
if( HalpNoritakePlatform ) {
KeInitializeInterrupt( &HalpPciInterrupt,
HalpPciInterruptHandler,
(PVOID) HalpNoritakePciIr1Qva, // Service Context
(PKSPIN_LOCK)NULL,
PCI_VECTOR,
PCI_DEVICE_LEVEL,
PCI_DEVICE_LEVEL,
LevelSensitive,
TRUE,
0,
FALSE
);
} else {
KeInitializeInterrupt( &HalpPciInterrupt,
HalpPciInterruptHandler,
(PVOID) HalpMikasaPciIrQva, // Service Context
(PKSPIN_LOCK)NULL,
PCI_VECTOR,
PCI_DEVICE_LEVEL,
PCI_DEVICE_LEVEL,
LevelSensitive,
TRUE,
0,
FALSE
);
}
if (!KeConnectInterrupt( &HalpPciInterrupt )) {
return(FALSE);
}
KeInitializeInterrupt( &HalpEisaInterrupt,
HalpEisaInterruptHandler,
(PVOID) HalpEisaIntAckBase, // Service Context is...
(PKSPIN_LOCK)NULL,
PIC_VECTOR,
EISA_DEVICE_LEVEL,
EISA_DEVICE_LEVEL,
LevelSensitive,
TRUE,
0,
FALSE
);
if (!KeConnectInterrupt( &HalpEisaInterrupt )) {
return(FALSE);
}
//
// Intitialize interrupt controller
//
KeRaiseIrql(ISA_DEVICE_LEVEL, &oldIrql);
//
// There's no initialization required for the Mikasa PCI interrupt
// "controller," as it's the wiring of the hardware, rather than a
// PIC like the 82c59 that directs interrupts. We do set the IMR to
// zero to disable all interrupts, initially.
//
// The Noritake requires a separate routine to setup the 3 interrupt
// mask registers correctly.
//
if( HalpNoritakePlatform ) {
HalpInitializeNoritakePciInterrupts();
} else {
HalpInitializeMikasaPciInterrupts();
}
//
// We must initialize the ESC's PICs, for EISA interrupts.
//
HalpInitializeEisaInterrupts();
//
// Restore the IRQL.
//
KeLowerIrql(oldIrql);
//
// Initialize the EISA DMA mode registers to a default value.
// Disable all of the DMA channels except channel 4 which is the
// cascade of channels 0-3.
//
WRITE_PORT_UCHAR(
&((PEISA_CONTROL) HalpEisaControlBase)->Dma1BasePort.AllMask,
0x0F
);
WRITE_PORT_UCHAR(
&((PEISA_CONTROL) HalpEisaControlBase)->Dma2BasePort.AllMask,
0x0E
);
return(TRUE);
}
BOOLEAN
HalpEnableInterruptHandler (
IN PKINTERRUPT Interrupt,
IN PKSERVICE_ROUTINE ServiceRoutine,
IN PVOID ServiceContext,
IN PKSPIN_LOCK SpinLock OPTIONAL,
IN ULONG Vector,
IN KIRQL Irql,
IN KIRQL SynchronizeIrql,
IN KINTERRUPT_MODE InterruptMode,
IN BOOLEAN ShareVector,
IN CCHAR ProcessorNumber,
IN BOOLEAN FloatingSave,
IN UCHAR ReportFlags,
IN KIRQL BusVector
)
/*++
Routine Description:
This function connects & registers an IDT vectors usage by the HAL.
Arguments:
Return Value:
--*/
{
//
// Remember which vector the hal is connecting so it can be reported
// later on
//
KeInitializeInterrupt( Interrupt,
ServiceRoutine,
ServiceContext,
SpinLock,
Vector,
Irql,
SynchronizeIrql,
InterruptMode,
ShareVector,
ProcessorNumber,
FloatingSave
);
//
// Don't fail if the interrupt cannot be connected.
//
if (!KeConnectInterrupt( Interrupt )) {
return(FALSE);
}
HalpRegisterVector (ReportFlags, BusVector, Vector, Irql);
//
// Connect the IDT and enable the vector now
//
return(TRUE);
}