301 lines
3.1 KiB
C
301 lines
3.1 KiB
C
/*++
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Copyright (c) 1996 Intel Corporation
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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i64bios.c copied from hali64\x86bios.c
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Abstract:
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This module implements the platform specific interface between a device
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driver and the execution of x86 ROM bios code for the device.
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Author:
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William K. Cheung (wcheung) 20-Mar-1996
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based on the version by David N. Cutler (davec) 17-Jun-1994
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Environment:
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Kernel mode only.
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Revision History:
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--*/
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#include "halp.h"
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//
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// Define global data.
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//
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ULONG HalpX86BiosInitialized = FALSE;
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ULONG HalpEnableInt10Calls = FALSE;
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ULONG
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HalpSetCmosData (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Offset,
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IN ULONG Length
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return 0;
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}
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ULONG
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HalpGetCmosData (
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IN ULONG BusNumber,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Length
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return 0;
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}
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VOID
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HalpAcquireCmosSpinLock (
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VOID
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return;
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}
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VOID
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HalpReleaseCmosSpinLock (
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VOID
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return ;
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}
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HAL_DISPLAY_BIOS_INFORMATION
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HalpGetDisplayBiosInformation (
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VOID
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return 8;
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}
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VOID
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HalpInitializeCmos (
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VOID
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return ;
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}
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VOID
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HalpReadCmosTime (
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PTIME_FIELDS TimeFields
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return ;
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}
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VOID
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HalpWriteCmosTime (
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PTIME_FIELDS TimeFields
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return;
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}
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VOID
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HalpBiosDisplayReset (
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VOID
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)
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/*++
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Routine Description:
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Arguements:
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Return Value:
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--*/
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{
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return;
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}
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VOID
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HalpInitializeX86DisplayAdapter(
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VOID
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)
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/*++
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Routine Description:
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This function initializes a display adapter using the x86 bios emulator.
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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#if 0
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//
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// If I/O Ports or I/O memory could not be mapped, then don't
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// attempt to initialize the display adapter.
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//
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if (HalpIoControlBase == NULL || HalpIoMemoryBase == NULL) {
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return;
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}
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//
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// Initialize the x86 bios emulator.
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//
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x86BiosInitializeBios(HalpIoControlBase, HalpIoMemoryBase);
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HalpX86BiosInitialized = TRUE;
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//
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// Attempt to initialize the display adapter by executing its ROM bios
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// code. The standard ROM bios code address for PC video adapters is
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// 0xC000:0000 on the ISA bus.
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//
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if (x86BiosInitializeAdapter(0xc0000,
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NULL,
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(PVOID)HalpIoControlBase,
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(PVOID)HalpIoMemoryBase) != XM_SUCCESS) {
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HalpEnableInt10Calls = FALSE;
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return;
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}
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#endif
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HalpEnableInt10Calls = TRUE;
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return;
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}
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