374 lines
8 KiB
C
374 lines
8 KiB
C
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/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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ixhwsup.c
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Abstract:
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This module contains the IoXxx routines for the NT I/O system that
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are hardware dependent. Were these routines not hardware dependent,
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they would reside in the iosubs.c module.
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Author:
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Ken Reneris (kenr) July-28-1994
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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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#define DMALIMIT 7
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VOID HalpInitOtherBuses (VOID);
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ULONG
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HalpNoBusData (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Offset,
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IN ULONG Length
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);
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ULONG HalpcGetCmosData (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Offset,
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IN ULONG Length
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);
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ULONG HalpcSetCmosData (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Offset,
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IN ULONG Length
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);
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ULONG HalpGetCmosData (
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IN ULONG BusNumber,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Length
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);
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ULONG HalpSetCmosData (
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IN ULONG BusNumber,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Length
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);
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HalpGetEisaData (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Offset,
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IN ULONG Length
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);
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//
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// Prototype for system bus handlers
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//
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NTSTATUS
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HalpAdjustEisaResourceList (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN OUT PIO_RESOURCE_REQUIREMENTS_LIST *pResourceList
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);
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ULONG
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HalpGetEisaInterruptVector (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN ULONG BusInterruptLevel,
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IN ULONG BusInterruptVector,
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OUT PKIRQL Irql,
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OUT PKAFFINITY Affinity
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);
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BOOLEAN
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HalpTranslateIsaBusAddress (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN PHYSICAL_ADDRESS BusAddress,
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IN OUT PULONG AddressSpace,
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OUT PPHYSICAL_ADDRESS TranslatedAddress
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);
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BOOLEAN
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HalpTranslateEisaBusAddress (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN PHYSICAL_ADDRESS BusAddress,
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IN OUT PULONG AddressSpace,
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OUT PPHYSICAL_ADDRESS TranslatedAddress
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);
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VOID
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HalpRegisterInternalBusHandlers (
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VOID
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);
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NTSTATUS
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HalpHibernateHal (
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IN PBUS_HANDLER BusHandler,
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IN PBUS_HANDLER RootHandler
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);
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NTSTATUS
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HalpResumeHal (
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IN PBUS_HANDLER BusHandler,
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IN PBUS_HANDLER RootHandler
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);
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#ifdef MCA
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//
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// Default functionality of MCA handlers is the same as the Eisa handlers,
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// just use them
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//
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#define HalpGetMCAInterruptVector HalpGetEisaInterruptVector
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#define HalpAdjustMCAResourceList HalpAdjustEisaResourceList;
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HalpGetPosData (
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IN PVOID BusHandler,
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IN PVOID RootHandler,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Offset,
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IN ULONG Length
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);
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#endif
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(INIT,HalpRegisterInternalBusHandlers)
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#pragma alloc_text(INIT,HalpAllocateBusHandler)
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#endif
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VOID
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HalpRegisterInternalBusHandlers (
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VOID
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)
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{
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PBUS_HANDLER Bus;
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if (KeGetCurrentPrcb()->Number) {
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// only need to do this once
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return ;
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}
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//
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// Initalize BusHandler data before registering any handlers
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//
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HalpInitBusHandler ();
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//
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// Build internal-bus 0, or system level bus
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//
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Bus = HalpAllocateBusHandler (
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Internal,
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ConfigurationSpaceUndefined,
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0, // Internal BusNumber 0
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InterfaceTypeUndefined, // no parent bus
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0,
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0 // no bus specfic data
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);
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if (!Bus) {
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return;
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}
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Bus->GetInterruptVector = HalpGetSystemInterruptVector;
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Bus->TranslateBusAddress = HalpTranslateSystemBusAddress;
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#if 0
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//
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// Hibernate and resume the hal by getting notifications
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// for when this bus is hibernated or resumed. Since it's
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// the first bus to be added, it will be the last to hibernate
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// and the first to resume
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//
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Bus->HibernateBus = HalpHibernateHal;
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Bus->ResumeBus = HalpResumeHal;
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#endif
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#if defined(NEC_98)
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Bus = HalpAllocateBusHandler (Isa, ConfigurationSpaceUndefined, 0, Internal, 0, 0); // isa as child of Internal
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Bus->GetBusData = HalpNoBusData;
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Bus->AdjustResourceList = HalpAdjustEisaResourceList;
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Bus->TranslateBusAddress = HalpTranslateEisaBusAddress;
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#else //defined(NEC_98)
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//
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// Add handlers for Cmos config space.
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//
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Bus = HalpAllocateBusHandler (InterfaceTypeUndefined, Cmos, 0, -1, 0, 0);
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Bus->GetBusData = HalpcGetCmosData;
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Bus->SetBusData = HalpcSetCmosData;
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Bus = HalpAllocateBusHandler (InterfaceTypeUndefined, Cmos, 1, -1, 0, 0);
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Bus->GetBusData = HalpcGetCmosData;
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Bus->SetBusData = HalpcSetCmosData;
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#ifndef MCA
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//
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// Build Isa/Eisa bus #0
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//
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Bus = HalpAllocateBusHandler (Eisa, EisaConfiguration, 0, Internal, 0, 0);
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Bus->GetBusData = HalpGetEisaData;
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Bus->GetInterruptVector = HalpGetEisaInterruptVector;
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Bus->AdjustResourceList = HalpAdjustEisaResourceList;
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Bus->TranslateBusAddress = HalpTranslateEisaBusAddress;
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Bus = HalpAllocateBusHandler (Isa, ConfigurationSpaceUndefined, 0, Eisa, 0, 0);
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Bus->GetBusData = HalpNoBusData;
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Bus->BusAddresses->Memory.Limit = 0xFFFFFF;
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Bus->TranslateBusAddress = HalpTranslateIsaBusAddress;
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#else
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//
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// Build MCA bus #0
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//
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Bus = HalpAllocateBusHandler (MicroChannel, Pos, 0, Internal, 0, 0);
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Bus->GetBusData = HalpGetPosData;
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Bus->GetInterruptVector = HalpGetMCAInterruptVector;
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Bus->AdjustResourceList = HalpAdjustMCAResourceList;
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#endif
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#endif // defined(NEC_98)
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HalpInitOtherBuses ();
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}
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PBUS_HANDLER
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HalpAllocateBusHandler (
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IN INTERFACE_TYPE InterfaceType,
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IN BUS_DATA_TYPE BusDataType,
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IN ULONG BusNumber,
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IN INTERFACE_TYPE ParentBusInterfaceType,
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IN ULONG ParentBusNumber,
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IN ULONG BusSpecificData
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)
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/*++
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Routine Description:
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Stub function to map old style code into new HalRegisterBusHandler code.
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Note we can add our specific bus handler functions after this bus
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handler structure has been added since this is being done during
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hal initialization.
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--*/
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{
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PBUS_HANDLER Bus = NULL;
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//
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// Create bus handler - new style
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//
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HaliRegisterBusHandler (
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InterfaceType,
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BusDataType,
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BusNumber,
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ParentBusInterfaceType,
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ParentBusNumber,
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BusSpecificData,
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NULL,
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&Bus
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);
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if (!Bus) {
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return NULL;
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}
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if (InterfaceType != InterfaceTypeUndefined) {
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Bus->BusAddresses = ExAllocatePoolWithTag(SPRANGEPOOL,
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sizeof(SUPPORTED_RANGES),
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HAL_POOL_TAG);
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RtlZeroMemory(Bus->BusAddresses, sizeof(SUPPORTED_RANGES));
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Bus->BusAddresses->Version = BUS_SUPPORTED_RANGE_VERSION;
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Bus->BusAddresses->Dma.Limit = DMALIMIT;
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Bus->BusAddresses->Memory.Limit = 0xFFFFFFFF;
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Bus->BusAddresses->IO.Limit = 0xFFFF;
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Bus->BusAddresses->IO.SystemAddressSpace = 1;
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Bus->BusAddresses->PrefetchMemory.Base = 1;
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}
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return Bus;
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}
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//
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// C to Asm thunks for CMos
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//
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ULONG HalpcGetCmosData (
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IN PBUS_HANDLER BusHandler,
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IN PVOID RootHandler,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Offset,
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IN ULONG Length
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)
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{
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// this interface should be rev'ed to support non-zero offsets
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if (Offset != 0) {
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return 0;
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}
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return HalpGetCmosData (BusHandler->BusNumber, SlotNumber, Buffer, Length);
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}
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ULONG HalpcSetCmosData (
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IN PBUS_HANDLER BusHandler,
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IN PVOID RootHandler,
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IN ULONG SlotNumber,
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IN PVOID Buffer,
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IN ULONG Offset,
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IN ULONG Length
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)
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{
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// this interface should be rev'ed to support non-zero offsets
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if (Offset != 0) {
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return 0;
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}
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return HalpSetCmosData (BusHandler->BusNumber, SlotNumber, Buffer, Length);
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}
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