277 lines
4.8 KiB
C
277 lines
4.8 KiB
C
//
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// No Check-in Source Code.
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//
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// Do not make this code available to non-Microsoft personnel
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// without Intel's express permission
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//
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/**
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*** Copyright (C) 1996-97 Intel Corporation. All rights reserved.
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***
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*** The information and source code contained herein is the exclusive
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*** property of Intel Corporation and may not be disclosed, examined
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*** or reproduced in whole or in part without explicit written authorization
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*** from the company.
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**/
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/*++
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Copyright (c) 1995 Intel Corporation
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Module Name:
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simfw.c
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Abstract:
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This module implements the routines that transfer control
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from the kernel to the TAL and SAL code.
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Author:
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14-Apr-1995
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Environment:
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Kernel mode
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Revision History:
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--*/
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#include "halp.h"
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#include "arc.h"
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#include "arccodes.h"
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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 simulation
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does not provide TAL and SAL support, it just stops the system.
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System reboot can be done here.
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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 HalHaltRoutine:
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case HalPowerDownRoutine:
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case HalRestartRoutine:
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case HalRebootRoutine:
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SscExit(0);
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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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ARC_STATUS
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HalGetEnvironmentVariable (
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IN PCHAR Variable,
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IN USHORT Length,
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OUT PCHAR Buffer
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)
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/*++
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Routine Description:
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This function locates an environment variable and returns its value.
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The only environment variable this implementation supports is
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"LastKnownGood". The returned value is always "FALSE".
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Arguments:
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Variable - Supplies a pointer to a zero terminated environment variable
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name.
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Length - Supplies the length of the value buffer in bytes.
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Buffer - Supplies a pointer to a buffer that receives the variable value.
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Return Value:
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ESUCCESS is returned if the enviroment variable is located. Otherwise,
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ENOENT is returned.
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--*/
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{
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if (_stricmp(Variable, "LastKnownGood") != 0) {
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return ENOENT;
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}
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strncpy(Buffer, "FALSE", Length);
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return ESUCCESS;
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}
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ARC_STATUS
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HalSetEnvironmentVariable (
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IN PCHAR Variable,
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IN PCHAR Value
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)
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/*++
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Routine Description:
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This function creates an environment variable with the specified value.
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The only environment variable this implementation supports is
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"LastKnownGood".
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Arguments:
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Variable - Supplies a pointer to an environment variable name.
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Value - Supplies a pointer to the environment variable value.
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Return Value:
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ESUCCESS is returned if the environment variable is created. Otherwise,
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ENOMEM is returned.
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--*/
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{
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if (_stricmp(Variable, "LastKnownGood") != 0) {
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return ENOMEM;
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}
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if (_stricmp(Value, "TRUE") == 0) {
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return(ENOMEM);
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} else if (_stricmp(Value, "FALSE") == 0) {
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return ESUCCESS;
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} else {
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return(ENOMEM);
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}
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}
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VOID
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HalSweepIcache (
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)
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/*++
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Routine Description:
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This function sweeps the entire I cache on the processor which it runs.
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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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return;
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}
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VOID
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HalSweepDcache (
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)
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/*++
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Routine Description:
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This function sweeps the entire D cache on ths processor which it runs.
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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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return;
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}
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VOID
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HalSweepIcacheRange (
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IN PVOID BaseAddress,
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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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This function sweeps the range of address in the I cache throughout the system.
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Arguments:
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BaseAddress - Supplies the starting virtual address of a range of
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virtual addresses that are to be flushed from the data cache.
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Length - Supplies the length of the range of virtual addresses
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that are to be flushed from the data cache.
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Return Value:
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None.
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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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HalSweepDcacheRange (
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IN PVOID BaseAddress,
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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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This function sweeps the range of address in the I cache throughout the system.
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Arguments:
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BaseAddress - Supplies the starting virtual address of a range of
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virtual addresses that are to be flushed from the data cache.
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Length - Supplies the length of the range of virtual addresses
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that are to be flushed from the data cache.
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Return Value:
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None.
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--*/
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{
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return;
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}
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