216 lines
5.1 KiB
C
216 lines
5.1 KiB
C
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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detecthw.c
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Abstract:
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Routines for determining which drivers/HAL need to be loaded.
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Author:
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John Vert (jvert) 20-Oct-1993
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Revision History:
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--*/
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#include "haldtect.h"
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#include <stdlib.h>
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//
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// detection function prototypes
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//
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#if 0
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ULONG DetectPicACPI_NEC98(PBOOLEAN);
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ULONG DetectMPS_NEC98(PBOOLEAN);
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ULONG DetectUPMPS_NEC98(PBOOLEAN);
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ULONG DetectTmr_NEC98(PBOOLEAN);
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ULONG DetectNonTmr_NEC98(PBOOLEAN);
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ULONG DetectSystemPro(PBOOLEAN);
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ULONG DetectWyse7(PBOOLEAN);
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ULONG NCRDeterminePlatform(PBOOLEAN);
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ULONG Detect486CStep(PBOOLEAN);
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ULONG DetectOlivettiMp(PBOOLEAN);
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ULONG DetectAST(PBOOLEAN);
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ULONG DetectCbusII(PBOOLEAN);
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ULONG DetectMPACPI(PBOOLEAN);
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ULONG DetectApicACPI(PBOOLEAN);
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ULONG DetectPicACPI(PBOOLEAN);
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ULONG DetectUPMPS(PBOOLEAN);
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ULONG DetectMPS(PBOOLEAN);
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#endif
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ULONG DetectTrue(PBOOLEAN);
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typedef struct _HAL_DETECT_ENTRY {
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INTERFACE_TYPE BusType;
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ULONG (*DetectFunction)(PBOOLEAN);
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PCHAR Shortname;
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} HAL_DETECT_ENTRY, *PHAL_DETECT_ENTRY;
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HAL_DETECT_ENTRY DetectHal[] = {
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#if 0
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// First check for a HAL to match some specific hardware.
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Isa, DetectPicACPI_NEC98, "nec98acpipic_up",
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Isa, DetectMPS_NEC98, "nec98mps_mp",
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Isa, DetectUPMPS_NEC98, "nec98mps_up",
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Isa, DetectTmr_NEC98, "nec98tmr_up",
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Isa, DetectNonTmr_NEC98, "nec98Notmr_up",
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MicroChannel, NCRDeterminePlatform, "ncr3x_mp",
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Eisa, DetectCbusII, "cbus2_mp",
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Isa, DetectCbusII, "cbus2_mp",
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MicroChannel, DetectCbusII, "cbusmc_mp",
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Eisa, DetectMPACPI, "acpiapic_mp",
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Isa, DetectMPACPI, "acpiapic_mp",
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Eisa, DetectApicACPI, "acpiapic_up",
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Isa, DetectApicACPI, "acpiapic_up",
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Isa, DetectPicACPI, "acpipic_up",
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Eisa, DetectMPS, "mps_mp",
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Isa, DetectMPS, "mps_mp",
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MicroChannel, DetectMPS, "mps_mca_mp",
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Eisa, DetectUPMPS, "mps_up",
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Isa, DetectUPMPS, "mps_up",
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Eisa, DetectSystemPro, "syspro_mp", // check SystemPro last
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// Before using default HAL make sure we don't need a special one
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Isa, Detect486CStep, "486c_up",
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Eisa, Detect486CStep, "486c_up",
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// Use default hal for given bus type...
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Isa, DetectTrue, "e_isa_up",
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Eisa, DetectTrue, "e_isa_up",
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MicroChannel, DetectTrue, "mca_up",
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#endif
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Isa, DetectTrue, "acpipic_up",
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Eisa, DetectTrue, "acpipic_up",
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MicroChannel, DetectTrue, "acpipic_up",
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0, NULL, NULL
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};
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PCHAR
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SlDetectHal(
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VOID
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)
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/*++
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Routine Description:
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Determines which HAL to load and returns the filename.
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Arguments:
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None.
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Return Value:
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PCHAR - pointer to the filename of the HAL to be loaded.
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--*/
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{
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PCONFIGURATION_COMPONENT_DATA Adapter;
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INTERFACE_TYPE BusType;
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BOOLEAN IsMpMachine;
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ULONG i;
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PCHAR MachineShortname;
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//
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// Determine the bus type by searching the ARC configuration tree
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//
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BusType = Isa;
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//
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// Check for Eisa
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//
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Adapter = KeFindConfigurationEntry(BlLoaderBlock->ConfigurationRoot,
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AdapterClass,
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EisaAdapter,
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NULL);
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if (Adapter != NULL) {
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BusType = Eisa;
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}
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//
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// Check for MCA
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//
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Adapter = NULL;
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for (; ;) {
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Adapter = KeFindConfigurationNextEntry (
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BlLoaderBlock->ConfigurationRoot,
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AdapterClass,
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MultiFunctionAdapter,
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NULL,
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&Adapter
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);
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if (!Adapter) {
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break;
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}
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if (_stricmp(Adapter->ComponentEntry.Identifier,"MCA")==0) {
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BusType = MicroChannel;
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break;
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}
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}
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//
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// Now go figure out machine and hal type.
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//
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for (i=0;;i++) {
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if (DetectHal[i].DetectFunction == NULL) {
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//
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// We reached the end of the list without
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// figuring it out!
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//
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SlFatalError(i);
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return(NULL);
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}
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if ((DetectHal[i].BusType == BusType) ||
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(DetectHal[i].BusType == Internal)) {
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IsMpMachine = FALSE;
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if ((DetectHal[i].DetectFunction)(&IsMpMachine) != 0) {
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//
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// Found the correct HAL.
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//
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MachineShortname = DetectHal[i].Shortname;
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break;
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}
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}
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}
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return(MachineShortname);
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}
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ULONG
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DetectTrue(
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OUT PBOOLEAN IsMP
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)
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/*++
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Routine Description:
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To Return TRUE
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Return Value:
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TRUE
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--*/
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{
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return TRUE;
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}
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