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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
jxreturn.c
Abstract:
This module implements the HAL return to firmware function.
Author:
David N. Cutler (davec) 21-Aug-1991
Revision History:
--*/
#include "halp.h"
#include "eisa.h"
VOID
HalReturnToFirmware(
IN FIRMWARE_REENTRY Routine
)
/*++
Routine Description:
This function returns control to the specified firmware routine.
In most cases it generates a soft reset by asserting the reset line
trough the keyboard controller.
The Keyboard controller is mapped using the same virtual address
and the same fixed entry as the DMA.
Arguments:
Routine - Supplies a value indicating which firmware routine to invoke.
Return Value:
Does not return.
--*/
{
KIRQL OldIrql;
//
// Disable Interrupts.
//
KeRaiseIrql(HIGH_LEVEL, &OldIrql);
//
// Case on the type of return.
//
switch (Routine) {
case HalHaltRoutine:
//
// Hang looping.
//
for (;;) {
}
case HalPowerDownRoutine:
case HalRestartRoutine:
case HalRebootRoutine:
case HalInteractiveModeRoutine:
if (HalpResetDisplayParameters != NULL) {
(HalpResetDisplayParameters)(80,25);
}
HalpResetX86DisplayAdapter();
ArcReboot();
for (;;) {
}
default:
KdPrint(("HalReturnToFirmware invalid argument\n"));
KeLowerIrql(OldIrql);
DbgBreakPoint();
}
}
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