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497 lines
14 KiB
497 lines
14 KiB
#ident "@(#) NEC jxusage.c 1.3 94/10/19 22:05:01"
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/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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ixusage.c
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Abstract:
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Author:
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Ken Reneris (kenr)
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Environment:
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Kernel mode only.
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Revision History:
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ADD001 [email protected] Mon Oct 17 22:26:38 JST 1994
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- Change PRIMARY_VECTOR_BASE to DEVICE_VECTOTRS
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CHG001 [email protected] Mon Oct 17 22:53:42 JST 1994
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- delete HalpEnableInterruptHandler, HalpRegisterVector
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- change IDT vector LOOP, R98 report up to DEVICE_VECTORS
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- change MAXIMUM_IDTVECTOR to MAXIMUM_VECTOR
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CMP001 [email protected] Tue Oct 18 15:53:32 JST 1994
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- resolve compile error
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--*/
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#include "halp.h"
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//
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// Array to remember hal's IDT usage
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//
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#if !defined(_R98_) // CMP001
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extern ADDRESS_USAGE *HalpAddressUsageList;
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extern IDTUsage HalpIDTUsage[MAXIMUM_IDTVECTOR];
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#endif // _R98
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KAFFINITY HalpActiveProcessors;
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VOID
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HalpGetResourceSortValue (
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IN PCM_PARTIAL_RESOURCE_DESCRIPTOR pRCurLoc,
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OUT PULONG sortscale,
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OUT PLARGE_INTEGER sortvalue
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);
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// CMP001
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VOID
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HalpReportResourceUsage (
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IN PUNICODE_STRING HalName,
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IN INTERFACE_TYPE DeviceInterfaceToUse
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);
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(INIT,HalpGetResourceSortValue)
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#pragma alloc_text(INIT,HalpReportResourceUsage)
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#endif
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#if !defined (_R98_) // CHG001
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VOID
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HalpEnableInterruptHandler (
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IN UCHAR ReportFlags,
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IN ULONG BusInterruptVector,
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IN ULONG SystemInterruptVector,
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IN KIRQL SystemIrql,
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IN VOID (*HalInterruptServiceRoutine)(VOID),
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IN KINTERRUPT_MODE InterruptMode
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)
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/*++
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Routine Description:
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This function connects & registers an IDT vectors usage by the HAL.
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Arguments:
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Return Value:
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--*/
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{
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//
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// Remember which vector the hal is connecting so it can be reported
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// later on
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//
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HalpRegisterVector (ReportFlags, BusInterruptVector, SystemInterruptVector, SystemIrql);
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//
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// Connect the IDT and enable the vector now
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//
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KiSetHandlerAddressToIDT(SystemInterruptVector, HalInterruptServiceRoutine);
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HalEnableSystemInterrupt(SystemInterruptVector, SystemIrql, InterruptMode);
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}
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VOID
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HalpRegisterVector (
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IN UCHAR ReportFlags,
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IN ULONG BusInterruptVector,
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IN ULONG SystemInterruptVector,
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IN KIRQL SystemIrql
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)
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/*++
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Routine Description:
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This registers an IDT vectors usage by the HAL.
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Arguments:
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Return Value:
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--*/
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{
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#if DBG
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// There are only 0ff IDT entries...
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ASSERT (SystemInterruptVector <= MAXIMUM_IDTVECTOR &&
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BusInterruptVector <= MAXIMUM_IDTVECTOR);
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#endif
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//
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// Remember which vector the hal is connecting so it can be reported
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// later on
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//
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HalpIDTUsage[SystemInterruptVector].Flags = ReportFlags;
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HalpIDTUsage[SystemInterruptVector].Irql = SystemIrql;
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HalpIDTUsage[SystemInterruptVector].BusReleativeVector = (UCHAR) BusInterruptVector;
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}
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#endif // _R98_
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VOID
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HalpGetResourceSortValue (
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IN PCM_PARTIAL_RESOURCE_DESCRIPTOR pRCurLoc,
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OUT PULONG sortscale,
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OUT PLARGE_INTEGER sortvalue
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)
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/*++
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Routine Description:
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Used by HalpReportResourceUsage in order to properly sort
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partial_resource_descriptors.
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Arguments:
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pRCurLoc - resource descriptor
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Return Value:
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sortscale - scaling of resource descriptor for sorting
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sortvalue - value to sort on
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--*/
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{
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switch (pRCurLoc->Type) {
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case CmResourceTypeInterrupt:
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*sortscale = 0;
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*sortvalue = RtlConvertUlongToLargeInteger(
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pRCurLoc->u.Interrupt.Level );
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break;
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case CmResourceTypePort:
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*sortscale = 1;
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*sortvalue = pRCurLoc->u.Port.Start;
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break;
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case CmResourceTypeMemory:
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*sortscale = 2;
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*sortvalue = pRCurLoc->u.Memory.Start;
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break;
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default:
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*sortscale = 4;
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*sortvalue = RtlConvertUlongToLargeInteger (0);
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break;
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}
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}
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VOID
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HalpReportResourceUsage (
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IN PUNICODE_STRING HalName,
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IN INTERFACE_TYPE DeviceInterfaceToUse
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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PCM_RESOURCE_LIST RawResourceList, TranslatedResourceList;
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PCM_FULL_RESOURCE_DESCRIPTOR pRFullDesc, pTFullDesc;
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PCM_PARTIAL_RESOURCE_LIST pRPartList, pTPartList;
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PCM_PARTIAL_RESOURCE_DESCRIPTOR pRCurLoc, pTCurLoc;
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PCM_PARTIAL_RESOURCE_DESCRIPTOR pRSortLoc, pTSortLoc;
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CM_PARTIAL_RESOURCE_DESCRIPTOR RPartialDesc, TPartialDesc;
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ULONG i, j, k, ListSize, Count;
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ULONG curscale, sortscale;
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UCHAR pass, reporton;
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INTERFACE_TYPE interfacetype;
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ULONG CurrentIDT, CurrentElement;
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ADDRESS_USAGE *CurrentAddress;
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LARGE_INTEGER curvalue, sortvalue;
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//
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// Allocate some space to build the resource structure
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//
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RawResourceList = (PCM_RESOURCE_LIST) ExAllocatePool (NonPagedPool, PAGE_SIZE*2);
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TranslatedResourceList = (PCM_RESOURCE_LIST) ExAllocatePool (NonPagedPool, PAGE_SIZE*2);
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// This functions assumes unset fields are zero
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RtlZeroMemory (RawResourceList, PAGE_SIZE*2);
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RtlZeroMemory (TranslatedResourceList, PAGE_SIZE*2);
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//
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// Initialize the lists
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//
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RawResourceList->List[0].InterfaceType = (INTERFACE_TYPE) -1;
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pRFullDesc = RawResourceList->List;
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pRCurLoc = (PCM_PARTIAL_RESOURCE_DESCRIPTOR) RawResourceList->List;
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pTCurLoc = (PCM_PARTIAL_RESOURCE_DESCRIPTOR) TranslatedResourceList->List;
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//
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// Make sure all vectors 00-2f are reserved
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// 00-1E reserved by Intel
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// 1F reserved by Intel for APIC (apc priority level)
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// 20-2e reserved by Microsoft
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// 2f reserved by Microsoft for APIC (dpc priority level)
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//
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#if defined(_R98_) // CHG001
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for(i=0; i < DEVICE_VECTORS; i++) { // ADD001
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HalpIDTUsage[i].Flags = InternalUsage | InterruptLatched;
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HalpIDTUsage[i].BusReleativeVector = (UCHAR) i;
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}
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#else
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for(i=0; i < PRIMARY_VECTOR_BASE; i++) {
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if (!(HalpIDTUsage[i].Flags & IDTOwned)) {
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HalpIDTUsage[i].Flags = InternalUsage;
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HalpIDTUsage[i].BusReleativeVector = (UCHAR) i;
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}
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}
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#endif
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for(pass=0; pass < 2; pass++) {
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if (pass == 0) {
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//
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// First pass - build resource lists for resources reported
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// reported against device usage.
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//
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reporton = DeviceUsage & ~IDTOwned;
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interfacetype = DeviceInterfaceToUse;
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} else {
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//
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// Second pass = build reousce lists for resources reported
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// as internal usage.
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//
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reporton = InternalUsage & ~IDTOwned;
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interfacetype = Internal;
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}
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CurrentIDT = 0;
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CurrentElement = 0;
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CurrentAddress = HalpAddressUsageList;
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for (; ;) {
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if (CurrentIDT <= MAXIMUM_VECTOR) { // CHG001
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//
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// Check to see if CurrentIDT needs to be reported
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//
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if (!(HalpIDTUsage[CurrentIDT].Flags & reporton)) {
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// Don't report on this one
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CurrentIDT++;
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continue;
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}
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//
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// Report CurrentIDT resource
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//
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RPartialDesc.Type = CmResourceTypeInterrupt;
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RPartialDesc.ShareDisposition = CmResourceShareDriverExclusive;
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RPartialDesc.Flags =
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HalpIDTUsage[CurrentIDT].Flags & InterruptLatched ?
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CM_RESOURCE_INTERRUPT_LATCHED :
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CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE;
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RPartialDesc.u.Interrupt.Vector = HalpIDTUsage[CurrentIDT].BusReleativeVector;
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RPartialDesc.u.Interrupt.Level = HalpIDTUsage[CurrentIDT].BusReleativeVector;
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RPartialDesc.u.Interrupt.Affinity = HalpActiveProcessors;
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RtlCopyMemory (&TPartialDesc, &RPartialDesc, sizeof TPartialDesc);
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TPartialDesc.u.Interrupt.Vector = CurrentIDT;
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TPartialDesc.u.Interrupt.Level = HalpIDTUsage[CurrentIDT].Irql;
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CurrentIDT++;
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} else {
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//
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// Check to see if CurrentAddress needs to be reported
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//
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if (!CurrentAddress) {
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break; // No addresses left
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}
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if (!(CurrentAddress->Flags & reporton)) {
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// Don't report on this list
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CurrentElement = 0;
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CurrentAddress = CurrentAddress->Next;
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continue;
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}
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if (!CurrentAddress->Element[CurrentElement].Length) {
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// End of current list, go to next list
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CurrentElement = 0;
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CurrentAddress = CurrentAddress->Next;
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continue;
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}
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//
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// Report CurrentAddress
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//
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RPartialDesc.Type = (UCHAR) CurrentAddress->Type;
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RPartialDesc.ShareDisposition = CmResourceShareDriverExclusive;
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if (RPartialDesc.Type == CmResourceTypePort) {
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i = 1; // address space port
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RPartialDesc.Flags = CM_RESOURCE_PORT_IO;
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} else {
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i = 0; // address space memory
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RPartialDesc.Flags = CM_RESOURCE_MEMORY_READ_WRITE;
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}
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// Notice: assuming u.Memory and u.Port have the same layout
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RPartialDesc.u.Memory.Start.HighPart = 0;
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RPartialDesc.u.Memory.Start.LowPart =
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CurrentAddress->Element[CurrentElement].Start;
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RPartialDesc.u.Memory.Length =
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CurrentAddress->Element[CurrentElement].Length;
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// translated address = Raw address
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RtlCopyMemory (&TPartialDesc, &RPartialDesc, sizeof TPartialDesc);
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HalTranslateBusAddress (
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interfacetype, // device bus or internal
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0, // bus number
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RPartialDesc.u.Memory.Start, // source address
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&i, // address space
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&TPartialDesc.u.Memory.Start ); // translated address
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if (RPartialDesc.Type == CmResourceTypePort && i == 0) {
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TPartialDesc.Flags = CM_RESOURCE_PORT_MEMORY;
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}
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CurrentElement++;
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}
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//
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// Include the current resource in the HALs list
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//
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if (pRFullDesc->InterfaceType != interfacetype) {
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//
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// Interface type changed, add another full section
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//
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RawResourceList->Count++;
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TranslatedResourceList->Count++;
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pRFullDesc = (PCM_FULL_RESOURCE_DESCRIPTOR) pRCurLoc;
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pTFullDesc = (PCM_FULL_RESOURCE_DESCRIPTOR) pTCurLoc;
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pRFullDesc->InterfaceType = interfacetype;
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pTFullDesc->InterfaceType = interfacetype;
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pRPartList = &pRFullDesc->PartialResourceList;
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pTPartList = &pTFullDesc->PartialResourceList;
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//
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// Bump current location pointers up
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//
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pRCurLoc = pRFullDesc->PartialResourceList.PartialDescriptors;
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pTCurLoc = pTFullDesc->PartialResourceList.PartialDescriptors;
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}
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pRPartList->Count++;
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pTPartList->Count++;
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RtlCopyMemory (pRCurLoc, &RPartialDesc, sizeof RPartialDesc);
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RtlCopyMemory (pTCurLoc, &TPartialDesc, sizeof TPartialDesc);
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pRCurLoc++;
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pTCurLoc++;
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}
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}
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ListSize = (ULONG) ( ((PUCHAR) pRCurLoc) - ((PUCHAR) RawResourceList) );
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//
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// The HAL's resource usage structures have been built
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// Sort the partial lists based on the Raw resource values
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//
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pRFullDesc = RawResourceList->List;
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pTFullDesc = TranslatedResourceList->List;
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for (i=0; i < RawResourceList->Count; i++) {
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pRCurLoc = pRFullDesc->PartialResourceList.PartialDescriptors;
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pTCurLoc = pTFullDesc->PartialResourceList.PartialDescriptors;
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Count = pRFullDesc->PartialResourceList.Count;
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for (j=0; j < Count; j++) {
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HalpGetResourceSortValue (pRCurLoc, &curscale, &curvalue);
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pRSortLoc = pRCurLoc;
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pTSortLoc = pTCurLoc;
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for (k=j; k < Count; k++) {
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HalpGetResourceSortValue (pRSortLoc, &sortscale, &sortvalue);
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if (sortscale < curscale ||
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(sortscale == curscale &&
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RtlLargeIntegerLessThan (sortvalue, curvalue)) ) {
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//
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// Swap the elements..
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//
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RtlCopyMemory (&RPartialDesc, pRCurLoc, sizeof RPartialDesc);
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RtlCopyMemory (pRCurLoc, pRSortLoc, sizeof RPartialDesc);
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RtlCopyMemory (pRSortLoc, &RPartialDesc, sizeof RPartialDesc);
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// swap translated descriptor as well
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RtlCopyMemory (&TPartialDesc, pTCurLoc, sizeof TPartialDesc);
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RtlCopyMemory (pTCurLoc, pTSortLoc, sizeof TPartialDesc);
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RtlCopyMemory (pTSortLoc, &TPartialDesc, sizeof TPartialDesc);
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// get new curscale & curvalue
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HalpGetResourceSortValue (pRCurLoc, &curscale, &curvalue);
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}
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pRSortLoc++;
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pTSortLoc++;
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}
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pRCurLoc++;
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pTCurLoc++;
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}
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pRFullDesc = (PCM_FULL_RESOURCE_DESCRIPTOR) pRCurLoc;
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pTFullDesc = (PCM_FULL_RESOURCE_DESCRIPTOR) pTCurLoc;
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}
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//
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// Inform the IO system of our resources..
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//
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IoReportHalResourceUsage (
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HalName,
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RawResourceList,
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TranslatedResourceList,
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ListSize
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);
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ExFreePool (RawResourceList);
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ExFreePool (TranslatedResourceList);
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}
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