364 lines
9.0 KiB
C
364 lines
9.0 KiB
C
/*++
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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 "setupldr.h"
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//
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// detection function prototypes
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//
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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 DetectUPMPS(PBOOLEAN);
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ULONG DetectMPS(PBOOLEAN);
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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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// First check for a HAL to match some specific hardware.
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Eisa, DetectWyse7, "Wyse7000_mp",
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MicroChannel, NCRDeterminePlatform, "ncr3x_mp",
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Eisa, DetectOlivettiMp, "oli5030_mp",
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Eisa, DetectAST, "astmf_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, 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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0, NULL, NULL
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};
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PCHAR
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SlDetectHal(
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IN PSETUP_LOADER_BLOCK SetupBlock
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)
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/*++
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Routine Description:
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Determines which HAL to load, fills in the SetupBlock appropriately,
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and returns the filename.
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Arguments:
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SetupBlock - Supplies a pointer to the Setup loader block
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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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VOID
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SlDetectScsi(
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IN PSETUP_LOADER_BLOCK SetupBlock
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)
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/*++
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Routine Description:
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SCSI detection routine for x86 machines.
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Arguments:
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SetupBlock - Supplies the Setup loader block
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Return Value:
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None.
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--*/
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{
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PVOID SifHandle;
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PCHAR p;
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ULONG LineCount,u;
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PDETECTED_DEVICE ScsiDevice;
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ULONG Ordinal;
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PCHAR ScsiFileName;
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PCHAR ScsiDescription;
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SCSI_INSERT_STATUS sis;
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extern BOOLEAN LoadScsiMiniports;
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//
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// If winnt.sif wasn't loaded, assume it's not a winnt setup
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// and therefore not unattended setup, and we detect no scsi
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// in this case on x86.
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//
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if(WinntSifHandle == NULL) {
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return;
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} else {
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SifHandle = WinntSifHandle;
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}
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//
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// If it's a floppyless setup, then the default is to load all
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// known scsi miniports. If it's not a floppyless setup,
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// the default is to load no miniports.
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//
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p = SlGetSectionKeyIndex(SifHandle,"Data","Floppyless",0);
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if(p && (*p != '0')) {
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//
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// Even if no miniport drivers are loaded, we want to indicate that
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// we "detected scsi".
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//
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SetupBlock->ScalarValues.LoadedScsi = 1;
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LineCount = SlCountLinesInSection(SifHandle,"DetectedMassStorage");
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if(LineCount == (ULONG)(-1)) {
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//
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// Section does not exist -- load all known miniports.
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// Setting this flag will cause all known miniports to be loaded
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// (see ..\setup.c).
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//
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LoadScsiMiniports = TRUE;
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} else {
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for(u=0; u<LineCount; u++) {
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if(p = SlGetSectionLineIndex(SifHandle,"DetectedMassStorage",u,0)) {
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//
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// Find this adapter's ordinal within the Scsi.Load section of txtsetup.sif
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//
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Ordinal = SlGetSectionKeyOrdinal(InfFile, "Scsi.Load", p);
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if(Ordinal == (ULONG)-1) {
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continue;
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}
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//
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// Find the driver filename
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//
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ScsiFileName = SlGetSectionKeyIndex(InfFile,
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"Scsi.Load",
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p,
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SIF_FILENAME_INDEX);
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if(!ScsiFileName) {
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continue;
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}
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//
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// Create a new detected device entry.
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//
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if((sis = SlInsertScsiDevice(Ordinal, &ScsiDevice)) == ScsiInsertError) {
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SlFriendlyError(ENOMEM, "SCSI detection", 0, NULL);
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return;
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}
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if(sis == ScsiInsertExisting) {
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#if DBG
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//
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// Sanity check to make sure we're talking about the same driver
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//
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if(_strcmpi(ScsiDevice->BaseDllName, ScsiFileName)) {
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SlError(400);
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return;
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}
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#endif
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} else {
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//
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// Find the driver description
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//
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ScsiDescription = SlGetIniValue(InfFile,
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"SCSI",
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p,
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p);
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ScsiDevice->IdString = p;
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ScsiDevice->Description = ScsiDescription;
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ScsiDevice->ThirdPartyOptionSelected = FALSE;
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ScsiDevice->FileTypeBits = 0;
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ScsiDevice->Files = NULL;
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ScsiDevice->BaseDllName = ScsiFileName;
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}
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}
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}
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}
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}
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}
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VOID
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SlDetectVideo(
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IN PSETUP_LOADER_BLOCK SetupBlock
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)
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/*++
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Routine Description:
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Video detection routine for x86 machines.
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Currently, no video detection is done on x86 machines, this just fills
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in the appropriate fields in the setuploaderblock that say "VGA"
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Arguments:
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SetupBlock - Supplies the Setup loader block
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Return Value:
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None.
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--*/
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{
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SetupBlock->VideoDevice.Next = NULL;
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SetupBlock->VideoDevice.IdString = SlCopyString("VGA");
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SetupBlock->VideoDevice.ThirdPartyOptionSelected = FALSE;
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SetupBlock->VideoDevice.FileTypeBits = 0;
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SetupBlock->VideoDevice.Files = NULL;
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SetupBlock->VideoDevice.BaseDllName = NULL;
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SetupBlock->Monitor = NULL;
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SetupBlock->MonitorId = NULL;
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return;
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}
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