Leaked source code of windows server 2003
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/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
ixhwsup.c
Abstract:
This module contains the IoXxx routines for the NT I/O system that
are hardware dependent. Were these routines not hardware dependent,
they would reside in the iosubs.c module.
Author:
Ken Reneris (kenr) July-28-1994
Environment:
Kernel mode
Revision History:
--*/
#include "halp.h"
#define DMALIMIT 7
VOID HalpInitOtherBuses (VOID);
ULONG
HalpNoBusData (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Offset,
IN ULONG Length
);
ULONG HalpcGetCmosData (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Offset,
IN ULONG Length
);
ULONG HalpcSetCmosData (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Offset,
IN ULONG Length
);
ULONG HalpGetCmosData (
IN ULONG BusNumber,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Length
);
ULONG HalpSetCmosData (
IN ULONG BusNumber,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Length
);
HalpGetEisaData (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Offset,
IN ULONG Length
);
//
// Prototype for system bus handlers
//
NTSTATUS
HalpAdjustEisaResourceList (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN OUT PIO_RESOURCE_REQUIREMENTS_LIST *pResourceList
);
ULONG
HalpGetEisaInterruptVector (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN ULONG BusInterruptLevel,
IN ULONG BusInterruptVector,
OUT PKIRQL Irql,
OUT PKAFFINITY Affinity
);
BOOLEAN
HalpTranslateIsaBusAddress (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN PHYSICAL_ADDRESS BusAddress,
IN OUT PULONG AddressSpace,
OUT PPHYSICAL_ADDRESS TranslatedAddress
);
BOOLEAN
HalpTranslateEisaBusAddress (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN PHYSICAL_ADDRESS BusAddress,
IN OUT PULONG AddressSpace,
OUT PPHYSICAL_ADDRESS TranslatedAddress
);
VOID
HalpRegisterInternalBusHandlers (
VOID
);
NTSTATUS
HalpHibernateHal (
IN PBUS_HANDLER BusHandler,
IN PBUS_HANDLER RootHandler
);
NTSTATUS
HalpResumeHal (
IN PBUS_HANDLER BusHandler,
IN PBUS_HANDLER RootHandler
);
#ifdef MCA
//
// Default functionality of MCA handlers is the same as the Eisa handlers,
// just use them
//
#define HalpGetMCAInterruptVector HalpGetEisaInterruptVector
#define HalpAdjustMCAResourceList HalpAdjustEisaResourceList;
HalpGetPosData (
IN PVOID BusHandler,
IN PVOID RootHandler,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Offset,
IN ULONG Length
);
#endif
#ifdef ALLOC_PRAGMA
#pragma alloc_text(INIT,HalpRegisterInternalBusHandlers)
#pragma alloc_text(INIT,HalpAllocateBusHandler)
#endif
VOID
HalpRegisterInternalBusHandlers (
VOID
)
{
PBUS_HANDLER Bus;
if (KeGetCurrentPrcb()->Number) {
// only need to do this once
return ;
}
//
// Initalize BusHandler data before registering any handlers
//
HalpInitBusHandler ();
//
// Build internal-bus 0, or system level bus
//
Bus = HalpAllocateBusHandler (
Internal,
ConfigurationSpaceUndefined,
0, // Internal BusNumber 0
InterfaceTypeUndefined, // no parent bus
0,
0 // no bus specfic data
);
if (!Bus) {
return;
}
Bus->GetInterruptVector = HalpGetSystemInterruptVector;
Bus->TranslateBusAddress = HalpTranslateSystemBusAddress;
#if 0
//
// Hibernate and resume the hal by getting notifications
// for when this bus is hibernated or resumed. Since it's
// the first bus to be added, it will be the last to hibernate
// and the first to resume
//
Bus->HibernateBus = HalpHibernateHal;
Bus->ResumeBus = HalpResumeHal;
#endif
#if defined(NEC_98)
Bus = HalpAllocateBusHandler (Isa, ConfigurationSpaceUndefined, 0, Internal, 0, 0); // isa as child of Internal
if (Bus) {
Bus->GetBusData = HalpNoBusData;
Bus->AdjustResourceList = HalpAdjustEisaResourceList;
Bus->TranslateBusAddress = HalpTranslateEisaBusAddress;
}
#else //defined(NEC_98)
//
// Add handlers for Cmos config space.
//
Bus = HalpAllocateBusHandler (InterfaceTypeUndefined, Cmos, 0, -1, 0, 0);
if (Bus) {
Bus->GetBusData = HalpcGetCmosData;
Bus->SetBusData = HalpcSetCmosData;
}
Bus = HalpAllocateBusHandler (InterfaceTypeUndefined, Cmos, 1, -1, 0, 0);
if (Bus) {
Bus->GetBusData = HalpcGetCmosData;
Bus->SetBusData = HalpcSetCmosData;
}
#ifndef MCA
//
// Build Isa/Eisa bus #0
//
Bus = HalpAllocateBusHandler (Eisa, EisaConfiguration, 0, Internal, 0, 0);
if (Bus) {
Bus->GetBusData = HalpGetEisaData;
Bus->GetInterruptVector = HalpGetEisaInterruptVector;
Bus->AdjustResourceList = HalpAdjustEisaResourceList;
Bus->TranslateBusAddress = HalpTranslateEisaBusAddress;
}
Bus = HalpAllocateBusHandler (Isa, ConfigurationSpaceUndefined, 0, Eisa, 0, 0);
if (Bus) {
Bus->GetBusData = HalpNoBusData;
Bus->BusAddresses->Memory.Limit = 0xFFFFFF;
Bus->TranslateBusAddress = HalpTranslateIsaBusAddress;
}
#else
//
// Build MCA bus #0
//
Bus = HalpAllocateBusHandler (MicroChannel, Pos, 0, Internal, 0, 0);
if (Bus) {
Bus->GetBusData = HalpGetPosData;
Bus->GetInterruptVector = HalpGetMCAInterruptVector;
Bus->AdjustResourceList = HalpAdjustMCAResourceList;
}
#endif
#endif // defined(NEC_98)
HalpInitOtherBuses ();
}
PBUS_HANDLER
HalpAllocateBusHandler (
IN INTERFACE_TYPE InterfaceType,
IN BUS_DATA_TYPE BusDataType,
IN ULONG BusNumber,
IN INTERFACE_TYPE ParentBusInterfaceType,
IN ULONG ParentBusNumber,
IN ULONG BusSpecificData
)
/*++
Routine Description:
Stub function to map old style code into new HalRegisterBusHandler code.
Note we can add our specific bus handler functions after this bus
handler structure has been added since this is being done during
hal initialization.
--*/
{
PBUS_HANDLER Bus = NULL;
//
// Create bus handler - new style
//
HaliRegisterBusHandler (
InterfaceType,
BusDataType,
BusNumber,
ParentBusInterfaceType,
ParentBusNumber,
BusSpecificData,
NULL,
&Bus
);
if (!Bus) {
return NULL;
}
if (InterfaceType != InterfaceTypeUndefined) {
Bus->BusAddresses = ExAllocatePoolWithTag(SPRANGEPOOL,
sizeof(SUPPORTED_RANGES),
HAL_POOL_TAG);
RtlZeroMemory(Bus->BusAddresses, sizeof(SUPPORTED_RANGES));
Bus->BusAddresses->Version = BUS_SUPPORTED_RANGE_VERSION;
Bus->BusAddresses->Dma.Limit = DMALIMIT;
Bus->BusAddresses->Memory.Limit = 0xFFFFFFFF;
Bus->BusAddresses->IO.Limit = 0xFFFF;
Bus->BusAddresses->IO.SystemAddressSpace = 1;
Bus->BusAddresses->PrefetchMemory.Base = 1;
}
return Bus;
}
//
// C to Asm thunks for CMos
//
ULONG HalpcGetCmosData (
IN PBUS_HANDLER BusHandler,
IN PVOID RootHandler,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Offset,
IN ULONG Length
)
{
// this interface should be rev'ed to support non-zero offsets
if (Offset != 0) {
return 0;
}
return HalpGetCmosData (BusHandler->BusNumber, SlotNumber, Buffer, Length);
}
ULONG HalpcSetCmosData (
IN PBUS_HANDLER BusHandler,
IN PVOID RootHandler,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Offset,
IN ULONG Length
)
{
// this interface should be rev'ed to support non-zero offsets
if (Offset != 0) {
return 0;
}
return HalpSetCmosData (BusHandler->BusNumber, SlotNumber, Buffer, Length);
}