windows-nt/Source/XPSP1/NT/base/boot/lib/haldtect.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1992 Microsoft Corporation
Module Name:
haldtect.c
Abstract:
Provides HAL detection for ARC-compliant machines.
Author:
John Vert (jvert) 21-Oct-1993
Revision History:
--*/
#if defined(_ALPHA_) || defined(_AXP64_) || defined(_MIPS_) || defined(_PPC_)
#include "haldtect.h"
#include <stdlib.h>
PVOID InfFile;
PVOID WinntSifHandle;
PCHAR
SlDetectHal(
VOID
)
/*++
Routine Description:
Determines the canonical short machine name for the HAL to be loaded for
this machine.
It does this by enumerating the [Map.Computer] section of the INF file and
comparing the strings there with the computer description in the ARC tree.
[Map.Computer]
msjazz_up = *Jazz
desksta1_up = "DESKTECH-ARCStation I"
pica61_up = "PICA-61"
duo_mp = *Duo
[Map.Computer]
DECjensen = "DEC-20Jensen"
DECjensen = "DEC-10Jensen"
Arguments:
None.
Return Value:
PCHAR - pointer to canonical shortname for the machine.
NULL - the type of machine could not be determined.
--*/
{
PCONFIGURATION_COMPONENT_DATA Node;
PCHAR MachineName;
//
// Find the system description node
//
Node = KeFindConfigurationEntry(BlLoaderBlock->ConfigurationRoot,
SystemClass,
ArcSystem,
NULL);
if (Node==NULL) {
SlError(0);
return(NULL);
}
MachineName = Node->ComponentEntry.Identifier;
MachineName = (MachineName ? SlSearchSection("Map.Computer", MachineName) : NULL);
return(MachineName);
}
#endif