91 lines
1.5 KiB
C
91 lines
1.5 KiB
C
|
/*++
|
|||
|
|
|
|||
|
|
Copyright (c) 1991 Microsoft Corporation
|
|||
|
|
|
|||
|
|
Module Name:
|
|||
|
|
|
|||
|
|
ixreboot.c
|
|||
|
|
|
|||
|
|
Abstract:
|
|||
|
|
|
|||
|
|
Provides the interface to the firmware for x86. Since there is no
|
|||
|
|
firmware to speak of on x86, this is just reboot support.
|
|||
|
|
|
|||
|
|
Author:
|
|||
|
|
|
|||
|
|
John Vert (jvert) 12-Aug-1991
|
|||
|
|
|
|||
|
|
Revision History:
|
|||
|
|
|
|||
|
|
--*/
|
|||
|
|
#include "halp.h"
|
|||
|
|
#include <inbv.h>
|
|||
|
|
|
|||
|
|
//
|
|||
|
|
// Defines to let us diddle the CMOS clock and the keyboard
|
|||
|
|
//
|
|||
|
|
|
|||
|
|
#define CMOS_CTRL (PUCHAR )0x70
|
|||
|
|
#define CMOS_DATA (PUCHAR )0x71
|
|||
|
|
|
|||
|
|
#define RESET 0xfe
|
|||
|
|
#define KEYBPORT (PUCHAR )0x64
|
|||
|
|
|
|||
|
|
VOID HalpVideoReboot(VOID);
|
|||
|
|
VOID HalpReboot(VOID);
|
|||
|
|
#if defined(NEC_98)
|
|||
|
|
BOOLEAN HalpPowerDownFlag;
|
|||
|
|
#endif // defined(NEC_98)
|
|||
|
|
|
|||
|
|
|
|||
|
|
VOID
|
|||
|
|
HalReturnToFirmware(
|
|||
|
|
IN FIRMWARE_ENTRY Routine
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
/*++
|
|||
|
|
|
|||
|
|
Routine Description:
|
|||
|
|
|
|||
|
|
Returns control to the firmware routine specified. Since the x86 has
|
|||
|
|
no useful firmware, it just stops the system.
|
|||
|
|
|
|||
|
|
Arguments:
|
|||
|
|
|
|||
|
|
Routine - Supplies a value indicating which firmware routine to invoke.
|
|||
|
|
|
|||
|
|
Return Value:
|
|||
|
|
|
|||
|
|
Does not return.
|
|||
|
|
|
|||
|
|
--*/
|
|||
|
|
|
|||
|
|
{
|
|||
|
|
switch (Routine) {
|
|||
|
|
case HalPowerDownRoutine:
|
|||
|
|
|
|||
|
|
#if defined(NEC_98)
|
|||
|
|
|
|||
|
|
HalpPowerDownFlag = TRUE;
|
|||
|
|
|
|||
|
|
#endif // defined(NEC_98)
|
|||
|
|
|
|||
|
|
case HalHaltRoutine:
|
|||
|
|
case HalRestartRoutine:
|
|||
|
|
case HalRebootRoutine:
|
|||
|
|
|
|||
|
|
InbvAcquireDisplayOwnership();
|
|||
|
|
|
|||
|
|
//
|
|||
|
|
// Never returns
|
|||
|
|
//
|
|||
|
|
|
|||
|
|
HalpReboot();
|
|||
|
|
break;
|
|||
|
|
default:
|
|||
|
|
DbgPrint("HalReturnToFirmware called\n");
|
|||
|
|
DbgBreakPoint();
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|