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