bussupp.c File Reference

#include <hal.h>
#include <debug.h>
#include "pci_classes.h"
#include "pci_vendors.h"

Include dependency graph for bussupp.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
INIT_FUNCTION PBUS_HANDLER NTAPI	HalpAllocateAndInitPciBusHandler (IN ULONG PciType, IN ULONG BusNo, IN BOOLEAN TestAllocation)
INIT_FUNCTION VOID NTAPI	HalpFixupPciSupportedRanges (IN ULONG BusCount)
INIT_FUNCTION NTSTATUS NTAPI	HalpGetChipHacks (IN USHORT VendorId, IN USHORT DeviceId, IN UCHAR RevisionId, IN PULONG HackFlags)
INIT_FUNCTION BOOLEAN NTAPI	HalpGetPciBridgeConfig (IN ULONG PciType, IN PUCHAR BusCount)
INIT_FUNCTION BOOLEAN NTAPI	HalpIsBridgeDevice (IN PPCI_COMMON_CONFIG PciData)
INIT_FUNCTION BOOLEAN NTAPI	HalpIsIdeDevice (IN PPCI_COMMON_CONFIG PciData)
INIT_FUNCTION BOOLEAN NTAPI	HalpIsRecognizedCard (IN PPCI_REGISTRY_INFO_INTERNAL PciRegistryInfo, IN PPCI_COMMON_CONFIG PciData, IN ULONG Flags)
INIT_FUNCTION BOOLEAN NTAPI	HalpIsValidPCIDevice (IN PBUS_HANDLER BusHandler, IN PCI_SLOT_NUMBER Slot)
INIT_FUNCTION NTSTATUS NTAPI	HalpMarkChipsetDecode (IN BOOLEAN OverrideEnable)
INIT_FUNCTION VOID NTAPI	HalpRegisterInternalBusHandlers (VOID)
INIT_FUNCTION VOID NTAPI	ShowSize (IN ULONG Size)
PBUS_HANDLER NTAPI	HalpAllocateBusHandler (IN INTERFACE_TYPE InterfaceType, IN BUS_DATA_TYPE BusDataType, IN ULONG BusNumber, IN INTERFACE_TYPE ParentBusInterfaceType, IN ULONG ParentBusNumber, IN ULONG BusSpecificData)
INIT_FUNCTION NTSTATUS NTAPI	HalpMarkChipsetDecode (BOOLEAN OverrideEnable)
INIT_FUNCTION VOID NTAPI	ShowSize (ULONG x)
INIT_FUNCTION VOID NTAPI	HalpDebugPciDumpBus (IN ULONG i, IN ULONG j, IN ULONG k, IN PPCI_COMMON_CONFIG PciData)
INIT_FUNCTION VOID NTAPI	HalpInitializePciBus (VOID)
INIT_FUNCTION VOID NTAPI	HalpInitBusHandlers (VOID)
INIT_FUNCTION VOID NTAPI	HalpRegisterKdSupportFunctions (VOID)
NTSTATUS NTAPI	HalpAssignSlotResources (IN PUNICODE_STRING RegistryPath, IN PUNICODE_STRING DriverClassName, IN PDRIVER_OBJECT DriverObject, IN PDEVICE_OBJECT DeviceObject, IN INTERFACE_TYPE BusType, IN ULONG BusNumber, IN ULONG SlotNumber, IN OUT PCM_RESOURCE_LIST *AllocatedResources)
BOOLEAN NTAPI	HaliFindBusAddressTranslation (IN PHYSICAL_ADDRESS BusAddress, IN OUT PULONG AddressSpace, OUT PPHYSICAL_ADDRESS TranslatedAddress, IN OUT PULONG_PTR Context, IN BOOLEAN NextBus)
BOOLEAN NTAPI	HaliTranslateBusAddress (IN INTERFACE_TYPE InterfaceType, IN ULONG BusNumber, IN PHYSICAL_ADDRESS BusAddress, IN OUT PULONG AddressSpace, OUT PPHYSICAL_ADDRESS TranslatedAddress)
NTSTATUS NTAPI	HalAdjustResourceList (IN PIO_RESOURCE_REQUIREMENTS_LIST *ResourceList)
NTSTATUS NTAPI	HalAssignSlotResources (IN PUNICODE_STRING RegistryPath, IN PUNICODE_STRING DriverClassName, IN PDRIVER_OBJECT DriverObject, IN PDEVICE_OBJECT DeviceObject, IN INTERFACE_TYPE BusType, IN ULONG BusNumber, IN ULONG SlotNumber, IN OUT PCM_RESOURCE_LIST *AllocatedResources)
ULONG NTAPI	HalGetBusData (IN BUS_DATA_TYPE BusDataType, IN ULONG BusNumber, IN ULONG SlotNumber, IN PVOID Buffer, IN ULONG Length)
ULONG NTAPI	HalGetBusDataByOffset (IN BUS_DATA_TYPE BusDataType, IN ULONG BusNumber, IN ULONG SlotNumber, IN PVOID Buffer, IN ULONG Offset, IN ULONG Length)
ULONG NTAPI	HalGetInterruptVector (IN INTERFACE_TYPE InterfaceType, IN ULONG BusNumber, IN ULONG BusInterruptLevel, IN ULONG BusInterruptVector, OUT PKIRQL Irql, OUT PKAFFINITY Affinity)
ULONG NTAPI	HalSetBusData (IN BUS_DATA_TYPE BusDataType, IN ULONG BusNumber, IN ULONG SlotNumber, IN PVOID Buffer, IN ULONG Length)
ULONG NTAPI	HalSetBusDataByOffset (IN BUS_DATA_TYPE BusDataType, IN ULONG BusNumber, IN ULONG SlotNumber, IN PVOID Buffer, IN ULONG Offset, IN ULONG Length)
BOOLEAN NTAPI	HalTranslateBusAddress (IN INTERFACE_TYPE InterfaceType, IN ULONG BusNumber, IN PHYSICAL_ADDRESS BusAddress, IN OUT PULONG AddressSpace, OUT PPHYSICAL_ADDRESS TranslatedAddress)

Variables
KSPIN_LOCK	HalpPCIConfigLock
ULONG	HalpPciIrqMask
static BOOLEAN	WarningsGiven [5]

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 12 of file bussupp.c.

Function Documentation

HalAdjustResourceList()

NTSTATUS NTAPI HalAdjustResourceList

(

IN PIO_RESOURCE_REQUIREMENTS_LIST *

ResourceList

)

Definition at line 1408 of file bussupp.c.

{
    PBUS_HANDLER Handler;
    ULONG Status;
    PAGED_CODE();

    /* Find the handler */
    Handler = HalReferenceHandlerForBus((*ResourceList)->InterfaceType,
                                        (*ResourceList)->BusNumber);
    if (!Handler) return STATUS_SUCCESS;

    /* Do the assignment */
    Status = Handler->AdjustResourceList(Handler,
                                         Handler,
                                         ResourceList);

    /* Dereference the handler and return */
    HalDereferenceBusHandler(Handler);
    return Status;
}

HalAssignSlotResources()

NTSTATUS NTAPI HalAssignSlotResources	(	IN PUNICODE_STRING	RegistryPath,
		IN PUNICODE_STRING	DriverClassName,
		IN PDRIVER_OBJECT	DriverObject,
		IN PDEVICE_OBJECT	DeviceObject,
		IN INTERFACE_TYPE	BusType,
		IN ULONG	BusNumber,
		IN ULONG	SlotNumber,
		IN OUT PCM_RESOURCE_LIST *	AllocatedResources
	)

Definition at line 1434 of file bussupp.c.

{
    PAGED_CODE();

    /* Check the bus type */
    if (BusType != PCIBus)
    {
        /* Call our internal handler */
        return HalpAssignSlotResources(RegistryPath,
                                       DriverClassName,
                                       DriverObject,
                                       DeviceObject,
                                       BusType,
                                       BusNumber,
                                       SlotNumber,
                                       AllocatedResources);
    }
    else
    {
        /* Call the PCI registered function */
        return HalPciAssignSlotResources(RegistryPath,
                                         DriverClassName,
                                         DriverObject,
                                         DeviceObject,
                                         PCIBus,
                                         BusNumber,
                                         SlotNumber,
                                         AllocatedResources);
    }
}

HalGetBusData()

ULONG NTAPI HalGetBusData	(	IN BUS_DATA_TYPE	BusDataType,
		IN ULONG	BusNumber,
		IN ULONG	SlotNumber,
		IN PVOID	Buffer,
		IN ULONG	Length
	)

Definition at line 1477 of file bussupp.c.

{
    /* Call the extended function */
    return HalGetBusDataByOffset(BusDataType,
                                 BusNumber,
                                 SlotNumber,
                                 Buffer,
                                 0,
                                 Length);
}

HalGetBusDataByOffset()

ULONG NTAPI HalGetBusDataByOffset	(	IN BUS_DATA_TYPE	BusDataType,
		IN ULONG	BusNumber,
		IN ULONG	SlotNumber,
		IN PVOID	Buffer,
		IN ULONG	Offset,
		IN ULONG	Length
	)

Definition at line 1497 of file bussupp.c.

{
    PBUS_HANDLER Handler;
    ULONG Status;

    /* Find the handler */
    Handler = HaliReferenceHandlerForConfigSpace(BusDataType, BusNumber);
    if (!Handler) return 0;

    /* Do the assignment */
    Status = Handler->GetBusData(Handler,
                                 Handler,
                                 SlotNumber,
                                 Buffer,
                                 Offset,
                                 Length);

    /* Dereference the handler and return */
    HalDereferenceBusHandler(Handler);
    return Status;
}

Referenced by HalGetBusData().

HalGetInterruptVector()

ULONG NTAPI HalGetInterruptVector	(	IN INTERFACE_TYPE	InterfaceType,
		IN ULONG	BusNumber,
		IN ULONG	BusInterruptLevel,
		IN ULONG	BusInterruptVector,
		OUT PKIRQL	Irql,
		OUT PKAFFINITY	Affinity
	)

Definition at line 1529 of file bussupp.c.

{
    PBUS_HANDLER Handler;
    ULONG Vector;
    PAGED_CODE();

    /* Defaults */
    *Irql = 0;
    *Affinity = 0;

    /* Find the handler */
    Handler = HalReferenceHandlerForBus(InterfaceType, BusNumber);
    if (!Handler) return 0;

    /* Do the assignment */
    Vector = Handler->GetInterruptVector(Handler,
                                         Handler,
                                         BusInterruptLevel,
                                         BusInterruptVector,
                                         Irql,
                                         Affinity);
    if ((Vector != IRQ2VECTOR(BusInterruptLevel)) ||
        (*Irql != VECTOR2IRQL(IRQ2VECTOR(BusInterruptLevel))))
    {
        DPRINT1("Returning IRQL %lx, Vector %lx for Level/Vector: %lx/%lx\n",
                *Irql, Vector, BusInterruptLevel, BusInterruptVector);
        DPRINT1("Old HAL would've returned IRQL %lx and Vector %lx\n",
                VECTOR2IRQL(IRQ2VECTOR(BusInterruptLevel)),
                IRQ2VECTOR(BusInterruptLevel));
    }

    /* Dereference the handler and return */
    HalDereferenceBusHandler(Handler);
    return Vector;
}

HaliFindBusAddressTranslation()

BOOLEAN NTAPI HaliFindBusAddressTranslation	(	IN PHYSICAL_ADDRESS	BusAddress,
		IN OUT PULONG	AddressSpace,
		OUT PPHYSICAL_ADDRESS	TranslatedAddress,
		IN OUT PULONG_PTR	Context,
		IN BOOLEAN	NextBus
	)

Definition at line 1298 of file bussupp.c.

{
    PHAL_BUS_HANDLER BusHandler;
    PBUS_HANDLER Handler;
    PLIST_ENTRY NextEntry;
    ULONG ContextValue;

    /* Make sure we have a context */
    if (!Context) return FALSE;
    ASSERT((*Context) || (NextBus == TRUE));

    /* Read the context */
    ContextValue = *Context;

    /* Find the bus handler */
    Handler = HalpContextToBusHandler(ContextValue);
    if (!Handler) return FALSE;

    /* Check if this is an ongoing lookup */
    if (NextBus)
    {
        /* Get the HAL bus handler */
        BusHandler = CONTAINING_RECORD(Handler, HAL_BUS_HANDLER, Handler);
        NextEntry = &BusHandler->AllHandlers;

        /* Get the next one if we were already with one */
        if (ContextValue) NextEntry = NextEntry->Flink;

        /* Start scanning */
        while (TRUE)
        {
            /* Check if this is the last one */
            if (NextEntry == &HalpAllBusHandlers)
            {
                /* Quit */
                *Context = 1;
                return FALSE;
            }

            /* Call this translator */
            BusHandler = CONTAINING_RECORD(NextEntry, HAL_BUS_HANDLER, AllHandlers);
            if (HalTranslateBusAddress(BusHandler->Handler.InterfaceType,
                                       BusHandler->Handler.BusNumber,
                                       BusAddress,
                                       AddressSpace,
                                       TranslatedAddress)) break;

            /* Try the next one */
            NextEntry = NextEntry->Flink;
        }

        /* If we made it, we're done */
        *Context = (ULONG_PTR)&BusHandler->Handler;
        return TRUE;
    }

    /* Try the first one through */
    if (!HalTranslateBusAddress(Handler->InterfaceType,
                                Handler->BusNumber,
                                BusAddress,
                                AddressSpace,
                                TranslatedAddress)) return FALSE;

    /* Remember for next time */
    *Context = (ULONG_PTR)Handler;
    return TRUE;
}

Referenced by HalpInitBusHandler().

HaliTranslateBusAddress()

BOOLEAN NTAPI HaliTranslateBusAddress	(	IN INTERFACE_TYPE	InterfaceType,
		IN ULONG	BusNumber,
		IN PHYSICAL_ADDRESS	BusAddress,
		IN OUT PULONG	AddressSpace,
		OUT PPHYSICAL_ADDRESS	TranslatedAddress
	)

Definition at line 1372 of file bussupp.c.

{
    PBUS_HANDLER Handler;
    BOOLEAN Status;

    /* Find the handler */
    Handler = HalReferenceHandlerForBus(InterfaceType, BusNumber);
    if (!(Handler) || !(Handler->TranslateBusAddress))
    {
        DPRINT1("No translator Interface: %x, Bus: %x, Handler: %p, BusAddress: %x!\n", InterfaceType, BusNumber, Handler, BusAddress);
        return FALSE;
    }

    /* Do the assignment */
    Status = Handler->TranslateBusAddress(Handler,
                                          Handler,
                                          BusAddress,
                                          AddressSpace,
                                          TranslatedAddress);

    /* Dereference the handler and return */
    HalDereferenceBusHandler(Handler);
    return Status;
}

Referenced by HalpInitBusHandler(), and HalTranslateBusAddress().

HalpAllocateAndInitPciBusHandler()

INIT_FUNCTION PBUS_HANDLER NTAPI HalpAllocateAndInitPciBusHandler	(	IN ULONG	PciType,
		IN ULONG	BusNo,
		IN BOOLEAN	TestAllocation
	)

Definition at line 300 of file bussupp.c.

{
    PBUS_HANDLER Bus;
    PPCIPBUSDATA BusData;

    /* Allocate the bus handler */
    Bus = HalpAllocateBusHandler(PCIBus,
                                 PCIConfiguration,
                                 BusNo,
                                 Internal,
                                 0,
                                 sizeof(PCIPBUSDATA));

    /* Set it up */
    Bus->GetBusData = HalpGetPCIData;
    Bus->SetBusData = HalpSetPCIData;
    Bus->GetInterruptVector = HalpGetPCIIntOnISABus;
    Bus->AdjustResourceList = HalpAdjustPCIResourceList;
    Bus->AssignSlotResources = HalpAssignPCISlotResources;
    Bus->BusAddresses->Dma.Limit = 0;

    /* Get our custom bus data */
    BusData = (PPCIPBUSDATA)Bus->BusData;

    /* Setup custom bus data */
    BusData->CommonData.Tag = PCI_DATA_TAG;
    BusData->CommonData.Version = PCI_DATA_VERSION;
    BusData->CommonData.ReadConfig = HalpReadPCIConfig;
    BusData->CommonData.WriteConfig = HalpWritePCIConfig;
    BusData->CommonData.Pin2Line = HalpPCIPin2ISALine;
    BusData->CommonData.Line2Pin = HalpPCIISALine2Pin;
    BusData->MaxDevice = PCI_MAX_DEVICES;
    BusData->GetIrqRange = HalpGetISAFixedPCIIrq;

    /* Initialize the bitmap */
    RtlInitializeBitMap(&BusData->DeviceConfigured, BusData->ConfiguredBits, 256);

    /* Check the type of PCI bus */
    switch (PciType)
    {
        /* Type 1 PCI Bus */
        case 1:

            /* Copy the Type 1 handler data */
            RtlCopyMemory(&PCIConfigHandler,
                          &PCIConfigHandlerType1,
                          sizeof(PCIConfigHandler));

            /* Set correct I/O Ports */
            BusData->Config.Type1.Address = PCI_TYPE1_ADDRESS_PORT;
            BusData->Config.Type1.Data = PCI_TYPE1_DATA_PORT;
            break;

        /* Type 2 PCI Bus */
        case 2:

            /* Copy the Type 1 handler data */
            RtlCopyMemory(&PCIConfigHandler,
                          &PCIConfigHandlerType2,
                          sizeof (PCIConfigHandler));

            /* Set correct I/O Ports */
            BusData->Config.Type2.CSE = PCI_TYPE2_CSE_PORT;
            BusData->Config.Type2.Forward = PCI_TYPE2_FORWARD_PORT;
            BusData->Config.Type2.Base = PCI_TYPE2_ADDRESS_BASE;

            /* Only 16 devices supported, not 32 */
            BusData->MaxDevice = 16;
            break;

        default:

            /* Invalid type */
            DbgPrint("HAL: Unnkown PCI type\n");
    }

    /* Return the bus handler */
    return Bus;
}

Referenced by HalpInitializePciBus().

HalpAllocateBusHandler()

PBUS_HANDLER NTAPI HalpAllocateBusHandler	(	IN INTERFACE_TYPE	InterfaceType,
		IN BUS_DATA_TYPE	BusDataType,
		IN ULONG	BusNumber,
		IN INTERFACE_TYPE	ParentBusInterfaceType,
		IN ULONG	ParentBusNumber,
		IN ULONG	BusSpecificData
	)

Definition at line 129 of file bussupp.c.

{
    PBUS_HANDLER Bus;

    /* Register the bus handler */
    HalRegisterBusHandler(InterfaceType,
                          BusDataType,
                          BusNumber,
                          ParentBusInterfaceType,
                          ParentBusNumber,
                          BusSpecificData,
                          NULL,
                          &Bus);
    if (!Bus)
    {
        return NULL;
    }

    /* Check for a valid interface */
    if (InterfaceType != InterfaceTypeUndefined)
    {
        /* Allocate address ranges and zero them out */
        Bus->BusAddresses = ExAllocatePoolWithTag(NonPagedPoolMustSucceed,
                                                  sizeof(SUPPORTED_RANGES),
                                                  TAG_HAL);
        RtlZeroMemory(Bus->BusAddresses, sizeof(SUPPORTED_RANGES));

        /* Build the data structure */
        Bus->BusAddresses->Version = HAL_SUPPORTED_RANGE_VERSION;
        Bus->BusAddresses->Dma.Limit = 7;
        Bus->BusAddresses->Memory.Limit = 0xFFFFFFFF;
        Bus->BusAddresses->IO.Limit = 0xFFFF;
        Bus->BusAddresses->IO.SystemAddressSpace = 1;
        Bus->BusAddresses->PrefetchMemory.Base = 1;
    }

    /* Return the bus address */
    return Bus;
}

Referenced by HalpAllocateAndInitPciBusHandler(), and HalpRegisterInternalBusHandlers().

HalpAssignSlotResources()

NTSTATUS NTAPI HalpAssignSlotResources	(	IN PUNICODE_STRING	RegistryPath,
		IN PUNICODE_STRING	DriverClassName,
		IN PDRIVER_OBJECT	DriverObject,
		IN PDEVICE_OBJECT	DeviceObject,
		IN INTERFACE_TYPE	BusType,
		IN ULONG	BusNumber,
		IN ULONG	SlotNumber,
		IN OUT PCM_RESOURCE_LIST *	AllocatedResources
	)

Definition at line 1263 of file bussupp.c.

{
    PBUS_HANDLER Handler;
    NTSTATUS Status;
    PAGED_CODE();
    DPRINT1("Slot assignment for %d on bus %u\n", BusType, BusNumber);

    /* Find the handler */
    Handler = HalReferenceHandlerForBus(BusType, BusNumber);
    if (!Handler) return STATUS_NOT_FOUND;

    /* Do the assignment */
    Status = Handler->AssignSlotResources(Handler,
                                          Handler,
                                          RegistryPath,
                                          DriverClassName,
                                          DriverObject,
                                          DeviceObject,
                                          SlotNumber,
                                          AllocatedResources);

    /* Dereference the handler and return */
    HalDereferenceBusHandler(Handler);
    return Status;
}

Referenced by HalAssignSlotResources().

HalpDebugPciDumpBus()

INIT_FUNCTION VOID NTAPI HalpDebugPciDumpBus	(	IN ULONG	i,
		IN ULONG	j,
		IN ULONG	k,
		IN PPCI_COMMON_CONFIG	PciData
	)

Definition at line 807 of file bussupp.c.

{
    PCHAR p, ClassName, Boundary, SubClassName, VendorName, ProductName, SubVendorName;
    ULONG Length;
    CHAR LookupString[16] = "";
    CHAR bSubClassName[64] = "Unknown";
    CHAR bVendorName[64] = "";
    CHAR bProductName[128] = "Unknown device";
    CHAR bSubVendorName[128] = "Unknown";
    ULONG Size, Mem, b;

    /* Isolate the class name */
    sprintf(LookupString, "C %02x  ", PciData->BaseClass);
    ClassName = strstr((PCHAR)ClassTable, LookupString);
    if (ClassName)
    {
        /* Isolate the subclass name */
        ClassName += strlen("C 00  ");
        Boundary = strstr(ClassName, "\nC ");
        sprintf(LookupString, "\n\t%02x  ", PciData->SubClass);
        SubClassName = strstr(ClassName, LookupString);
        if (Boundary && SubClassName > Boundary)
        {
            SubClassName = NULL;
        }
        if (!SubClassName)
        {
            SubClassName = ClassName;
        }
        else
        {
            SubClassName += strlen("\n\t00  ");
        }
        /* Copy the subclass into our buffer */
        p = strpbrk(SubClassName, "\r\n");
        Length = p - SubClassName;
        if (Length >= sizeof(bSubClassName)) Length = sizeof(bSubClassName) - 1;
        strncpy(bSubClassName, SubClassName, Length);
        bSubClassName[Length] = '\0';
    }

    /* Isolate the vendor name */
    sprintf(LookupString, "\r\n%04x  ", PciData->VendorID);
    VendorName = strstr((PCHAR)VendorTable, LookupString);
    if (VendorName)
    {
        /* Copy the vendor name into our buffer */
        VendorName += strlen("\r\n0000  ");
        p = strpbrk(VendorName, "\r\n");
        Length = p - VendorName;
        if (Length >= sizeof(bVendorName)) Length = sizeof(bVendorName) - 1;
        strncpy(bVendorName, VendorName, Length);
        bVendorName[Length] = '\0';
        p += strlen("\r\n");
        while (*p == '\t' || *p == '#')
        {
            p = strpbrk(p, "\r\n");
            p += strlen("\r\n");
        }
        Boundary = p;

        /* Isolate the product name */
        sprintf(LookupString, "\t%04x  ", PciData->DeviceID);
        ProductName = strstr(VendorName, LookupString);
        if (Boundary && ProductName >= Boundary)
        {
            ProductName = NULL;
        }
        if (ProductName)
        {
            /* Copy the product name into our buffer */
            ProductName += strlen("\t0000  ");
            p = strpbrk(ProductName, "\r\n");
            Length = p - ProductName;
            if (Length >= sizeof(bProductName)) Length = sizeof(bProductName) - 1;
            strncpy(bProductName, ProductName, Length);
            bProductName[Length] = '\0';
            p += strlen("\r\n");
            while ((*p == '\t' && *(p + 1) == '\t') || *p == '#')
            {
                p = strpbrk(p, "\r\n");
                p += strlen("\r\n");
            }
            Boundary = p;

            /* Isolate the subvendor and subsystem name */
            sprintf(LookupString,
                    "\t\t%04x %04x  ",
                    PciData->u.type0.SubVendorID,
                    PciData->u.type0.SubSystemID);
            SubVendorName = strstr(ProductName, LookupString);
            if (Boundary && SubVendorName >= Boundary)
            {
                SubVendorName = NULL;
            }
            if (SubVendorName)
            {
                /* Copy the subvendor name into our buffer */
                SubVendorName += strlen("\t\t0000 0000  ");
                p = strpbrk(SubVendorName, "\r\n");
                Length = p - SubVendorName;
                if (Length >= sizeof(bSubVendorName)) Length = sizeof(bSubVendorName) - 1;
                strncpy(bSubVendorName, SubVendorName, Length);
                bSubVendorName[Length] = '\0';
            }
        }
    }

    /* Print out the data */
    DbgPrint("%02x:%02x.%x %s [%02x%02x]: %s %s [%04x:%04x] (rev %02x)\n"
             "\tSubsystem: %s [%04x:%04x]\n",
             i,
             j,
             k,
             bSubClassName,
             PciData->BaseClass,
             PciData->SubClass,
             bVendorName,
             bProductName,
             PciData->VendorID,
             PciData->DeviceID,
             PciData->RevisionID,
             bSubVendorName,
             PciData->u.type0.SubVendorID,
             PciData->u.type0.SubSystemID);

    /* Print out and decode flags */
    DbgPrint("\tFlags:");
    if (PciData->Command & PCI_ENABLE_BUS_MASTER) DbgPrint(" bus master,");
    if (PciData->Status & PCI_STATUS_66MHZ_CAPABLE) DbgPrint(" 66MHz,");
    if ((PciData->Status & PCI_STATUS_DEVSEL) == 0x000) DbgPrint(" fast devsel,");
    if ((PciData->Status & PCI_STATUS_DEVSEL) == 0x200) DbgPrint(" medium devsel,");
    if ((PciData->Status & PCI_STATUS_DEVSEL) == 0x400) DbgPrint(" slow devsel,");
    if ((PciData->Status & PCI_STATUS_DEVSEL) == 0x600) DbgPrint(" unknown devsel,");
    DbgPrint(" latency %d", PciData->LatencyTimer);
    if (PciData->u.type0.InterruptPin != 0 &&
        PciData->u.type0.InterruptLine != 0 &&
        PciData->u.type0.InterruptLine != 0xFF) DbgPrint(", IRQ %02d", PciData->u.type0.InterruptLine);
    else if (PciData->u.type0.InterruptPin != 0) DbgPrint(", IRQ assignment required");
    DbgPrint("\n");

    /* Scan addresses */
    Size = 0;
    for (b = 0; b < PCI_TYPE0_ADDRESSES; b++)
    {
        /* Check for a BAR */
        Mem = PciData->u.type0.BaseAddresses[b];
        if (Mem)
        {
            /* Decode the address type */
            if (Mem & PCI_ADDRESS_IO_SPACE)
            {
                /* Guess the size */
                Size = 1 << 2;
                while (!(Mem & Size) && (Size)) Size <<= 1;

                /* Print it out */
                DbgPrint("\tI/O ports at %04lx", Mem & PCI_ADDRESS_IO_ADDRESS_MASK);
                ShowSize(Size);
            }
            else
            {
                /* Guess the size */
                Size = 1 << 8;
                while (!(Mem & Size) && (Size)) Size <<= 1;

                /* Print it out */
                DbgPrint("\tMemory at %08lx (%d-bit, %sprefetchable)",
                         Mem & PCI_ADDRESS_MEMORY_ADDRESS_MASK,
                         (Mem & PCI_ADDRESS_MEMORY_TYPE_MASK) == PCI_TYPE_32BIT ? 32 : 64,
                         (Mem & PCI_ADDRESS_MEMORY_PREFETCHABLE) ? "" : "non-");
                ShowSize(Size);
            }
            DbgPrint("\n");
        }
    }
}

Referenced by HalpInitializePciBus().

HalpFixupPciSupportedRanges()

INIT_FUNCTION VOID NTAPI HalpFixupPciSupportedRanges

(

IN ULONG

BusCount

)

Definition at line 712 of file bussupp.c.

{
    ULONG i;
    PBUS_HANDLER Bus, ParentBus;

    /* Loop all buses */
    for (i = 0; i < BusCount; i++)
    {
        /* Get PCI bus handler */
        Bus = HalHandlerForBus(PCIBus, i);

        /* Loop all parent buses */
        ParentBus = Bus->ParentHandler;
        while (ParentBus)
        {
            /* Should merge addresses */
            if (!WarningsGiven[0]++) DPRINT1("Found parent bus (indicating PCI Bridge). PCI devices may fail!\n");

            /* Check the next parent */
            ParentBus = ParentBus->ParentHandler;
        }
    }

    /* Loop all buses again */
    for (i = 0; i < BusCount; i++)
    {
        /* Get PCI bus handler */
        Bus = HalHandlerForBus(PCIBus, i);

        /* Check if this is a PCI 2.2 Bus with Subtractive Decode */
        if (!((PPCIPBUSDATA)Bus->BusData)->Subtractive)
        {
            /* Loop all parent buses */
            ParentBus = Bus->ParentHandler;
            while (ParentBus)
            {
                /* But check only PCI parent buses specifically */
                if (ParentBus->InterfaceType == PCIBus)
                {
                    /* Should trim addresses */
                    if (!WarningsGiven[1]++) DPRINT1("Found parent PCI Bus (indicating PCI-to-PCI Bridge). PCI devices may fail!\n");
                }

                /* Check the next parent */
                ParentBus = ParentBus->ParentHandler;
            }
        }
    }

    /* Loop buses one last time */
    for (i = 0; i < BusCount; i++)
    {
        /* Get the PCI bus handler */
        Bus = HalHandlerForBus(PCIBus, i);

        /* Sort and combine (trim) bus address range information */
        DPRINT("Warning: Bus addresses not being optimized!\n");
    }
}

Referenced by HalpInitializePciBus().

HalpGetChipHacks()

INIT_FUNCTION NTSTATUS NTAPI HalpGetChipHacks	(	IN USHORT	VendorId,
		IN USHORT	DeviceId,
		IN UCHAR	RevisionId,
		IN PULONG	HackFlags
	)

Definition at line 447 of file bussupp.c.

{
    UNICODE_STRING KeyName, ValueName;
    NTSTATUS Status;
    OBJECT_ATTRIBUTES ObjectAttributes;
    HANDLE KeyHandle;
    WCHAR Buffer[32];
    KEY_VALUE_PARTIAL_INFORMATION PartialInfo;
    ULONG ResultLength;

    /* Setup the object attributes for the key */
    RtlInitUnicodeString(&KeyName,
                         L"\\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\"
                         L"Control\\HAL");
    InitializeObjectAttributes(&ObjectAttributes,
                               &KeyName,
                               OBJ_CASE_INSENSITIVE,
                               NULL,
                               NULL);

    /* Open the key */
    Status = ZwOpenKey(&KeyHandle, KEY_READ, &ObjectAttributes);
    if (!NT_SUCCESS(Status)) return Status;

    /* Query value */
    swprintf(Buffer, L"%04X%04X", VendorId, DeviceId);
    RtlInitUnicodeString(&ValueName, Buffer);
    Status = ZwQueryValueKey(KeyHandle,
                             &ValueName,
                             KeyValuePartialInformation,
                             &PartialInfo,
                             sizeof(PartialInfo),
                             &ResultLength);
    if (NT_SUCCESS(Status))
    {
        /* Return the flags */
        DbgPrint("\tFound HackFlags for your chipset\n");
        *HackFlags = *(PULONG)PartialInfo.Data;
        DbgPrint("\t\tHack Flags: %lx (Hack Revision: %lx-Your Revision: %lx)\n",
                 *HackFlags, HALP_REVISION_FROM_HACK_FLAGS(*HackFlags), RevisionId);

        /* Does it apply to this revision? */
        if ((RevisionId) && (RevisionId >= (HALP_REVISION_FROM_HACK_FLAGS(*HackFlags))))
        {
            /* Read the revision flags */
            *HackFlags = HALP_REVISION_HACK_FLAGS(*HackFlags);
        }

        /* Throw out revision data */
        *HackFlags = HALP_HACK_FLAGS(*HackFlags);
        if (!*HackFlags) DbgPrint("\tNo HackFlags for your chipset's revision!\n");
    }

    /* Close the handle and return */
    ZwClose(KeyHandle);
    return Status;
}

Referenced by HalpInitializePciBus().

HalpGetPciBridgeConfig()

INIT_FUNCTION BOOLEAN NTAPI HalpGetPciBridgeConfig	(	IN ULONG	PciType,
		IN PUCHAR	BusCount
	)

Definition at line 659 of file bussupp.c.

{
    PCI_SLOT_NUMBER PciSlot;
    ULONG i, j, k;
    UCHAR DataBuffer[PCI_COMMON_HDR_LENGTH];
    PPCI_COMMON_CONFIG PciData = (PPCI_COMMON_CONFIG)DataBuffer;
    PBUS_HANDLER BusHandler;

    /* Loop PCI buses */
    PciSlot.u.bits.Reserved = 0;
    for (i = 0; i < *BusCount; i++)
    {
        /* Get the bus handler */
        BusHandler = HalHandlerForBus(PCIBus, i);

        /* Loop every device */
        for (j = 0; j < PCI_MAX_DEVICES; j++)
        {
            /* Loop every function */
            PciSlot.u.bits.DeviceNumber = j;
            for (k = 0; k < PCI_MAX_FUNCTION; k++)
            {
                /* Build the final slot structure */
                PciSlot.u.bits.FunctionNumber = k;

                /* Read the configuration information */
                HalpReadPCIConfig(BusHandler,
                                  PciSlot,
                                  PciData,
                                  0,
                                  PCI_COMMON_HDR_LENGTH);

                /* Skip if this is an invalid function */
                if (PciData->VendorID == PCI_INVALID_VENDORID) continue;

                /* Make sure that this is a PCI bridge or a cardbus bridge */
                if (!HalpIsBridgeDevice(PciData)) continue;

                /* Not supported */
                if (!WarningsGiven[2]++) DPRINT1("Your machine has a PCI-to-PCI or CardBUS Bridge. PCI devices may fail!\n");
                continue;
            }
        }
    }

    /* If we exited the loop, then there's no bridge to worry about */
    return FALSE;
}

Referenced by HalpInitializePciBus().

HalpInitBusHandlers()

INIT_FUNCTION VOID NTAPI HalpInitBusHandlers

(

VOID

)

Definition at line 1231 of file bussupp.c.

{
    /* Register the HAL Bus Handler support */
    HalpRegisterInternalBusHandlers();
}

HalpInitializePciBus()

INIT_FUNCTION VOID NTAPI HalpInitializePciBus

(

VOID

)

Definition at line 992 of file bussupp.c.

{
#ifndef _MINIHAL_
    PPCI_REGISTRY_INFO_INTERNAL PciRegistryInfo;
    UCHAR PciType;
    PCI_SLOT_NUMBER PciSlot;
    ULONG i, j, k;
    UCHAR DataBuffer[PCI_COMMON_HDR_LENGTH];
    PPCI_COMMON_CONFIG PciData = (PPCI_COMMON_CONFIG)DataBuffer;
    PBUS_HANDLER BusHandler;
    ULONG HackFlags;
    BOOLEAN ExtendedAddressDecoding = FALSE;
    NTSTATUS Status;

    /* Query registry information */
    PciRegistryInfo = HalpQueryPciRegistryInfo();
    if (!PciRegistryInfo) return;

    /* Initialize the PCI configuration lock */
    KeInitializeSpinLock(&HalpPCIConfigLock);

    /* Get the type and free the info structure */
    PciType = PciRegistryInfo->HardwareMechanism & 0xF;

    /* Check if this is a type 2 PCI bus with at least one bus */
    if ((PciRegistryInfo->NoBuses) && (PciType == 2))
    {
        /* Setup the PCI slot */
        PciSlot.u.bits.Reserved = 0;
        PciSlot.u.bits.FunctionNumber = 0;

        /* Loop all slots */
        for (i = 0; i < 32; i++)
        {
            /* Try to setup a Type 2 PCI slot */
            PciType = 2;
            BusHandler = HalpAllocateAndInitPciBusHandler(2, 0, TRUE);
            if (!BusHandler) break;

            /* Now check if it's valid */
            if (HalpIsValidPCIDevice(BusHandler, PciSlot)) break;

            /* Heh, the BIOS lied... try Type 1 */
            PciType = 1;
            BusHandler = HalpAllocateAndInitPciBusHandler(1, 0, TRUE);
            if (!BusHandler) break;

            /* Now check if it's valid */
            if (HalpIsValidPCIDevice(BusHandler, PciSlot)) break;

            /* Keep trying */
            PciType = 2;
        }

        /* Now allocate the correct kind of handler */
        HalpAllocateAndInitPciBusHandler(PciType, 0, FALSE);
    }

    /* Okay, now loop all PCI bridges */
    do
    {
        /* Loop all PCI buses */
        for (i = 0; i < PciRegistryInfo->NoBuses; i++)
        {
            /* Check if we have a handler for it */
            if (!HalHandlerForBus(PCIBus, i))
            {
                /* Allocate it */
                HalpAllocateAndInitPciBusHandler(PciType, i, FALSE);
            }
        }
        /* Go to the next bridge */
    } while (HalpGetPciBridgeConfig(PciType, &PciRegistryInfo->NoBuses));

    /* Now build correct address range informaiton */
    HalpFixupPciSupportedRanges(PciRegistryInfo->NoBuses);

    /* Loop every bus */
    DbgPrint("\n====== PCI BUS HARDWARE DETECTION =======\n\n");
    PciSlot.u.bits.Reserved = 0;
    for (i = 0; i < PciRegistryInfo->NoBuses; i++)
    {
        /* Get the bus handler */
        BusHandler = HalHandlerForBus(PCIBus, i);

        /* Loop every device */
        for (j = 0; j < 32; j++)
        {
            /* Loop every function */
            PciSlot.u.bits.DeviceNumber = j;
            for (k = 0; k < 8; k++)
            {
                /* Build the final slot structure */
                PciSlot.u.bits.FunctionNumber = k;

                /* Read the configuration information */
                HalpReadPCIConfig(BusHandler,
                                  PciSlot,
                                  PciData,
                                  0,
                                  PCI_COMMON_HDR_LENGTH);

                /* Skip if this is an invalid function */
                if (PciData->VendorID == PCI_INVALID_VENDORID) continue;

                /* Print out the entry */
                HalpDebugPciDumpBus(i, j, k, PciData);

                /* Check if this is a Cardbus bridge */
                if (PCI_CONFIGURATION_TYPE(PciData) == PCI_CARDBUS_BRIDGE_TYPE)
                {
                    /* Not supported */
                    DbgPrint("\tDevice is a PCI Cardbus Bridge. It will not work!\n");
                    continue;
                }

                /* Check if this is a PCI device */
                if (PCI_CONFIGURATION_TYPE(PciData) != PCI_BRIDGE_TYPE)
                {
                    /* Check if it has an interrupt pin and line registered */
                    if ((PciData->u.type1.InterruptPin) &&
                        (PciData->u.type1.InterruptLine))
                    {
                        /* Check if this interrupt line is connected to the bus */
                        if (PciData->u.type1.InterruptLine < 16)
                        {
                            /* Is this an IDE device? */
                            if (!HalpIsIdeDevice(PciData))
                            {
                                /* We'll mask out this interrupt then */
                                DbgPrint("\tDevice is using IRQ %d! ISA Cards using that IRQ may fail!\n",
                                         PciData->u.type1.InterruptLine);
                                HalpPciIrqMask |= (1 << PciData->u.type1.InterruptLine);
                            }
                        }
                    }
                }

                /* Check for broken Intel chips */
                if (PciData->VendorID == 0x8086)
                {
                    /* Check for broken 82830 PCI controller */
                    if ((PciData->DeviceID == 0x04A3) &&
                        (PciData->RevisionID < 0x11))
                    {
                        /* Skip */
                        DbgPrint("\tDevice is a broken Intel 82430 PCI Controller. It will not work!\n\n");
                        continue;
                    }

                    /* Check for broken 82378 PCI-to-ISA Bridge */
                    if ((PciData->DeviceID == 0x0484) &&
                        (PciData->RevisionID <= 3))
                    {
                        /* Skip */
                        DbgPrint("\tDevice is a broken Intel 82378 PCI-to-ISA Bridge. It will not work!\n\n");
                        continue;
                    }

                    /* Check for broken 82450 PCI Bridge */
                    if ((PciData->DeviceID == 0x84C4) &&
                        (PciData->RevisionID <= 4))
                    {
                        DbgPrint("\tDevice is a Intel Orion 82450 PCI Bridge. It will not work!\n\n");
                        continue;
                    }
                }

                /* Do we know this card? */
                if (!ExtendedAddressDecoding)
                {
                    /* Check for it */
                    if (HalpIsRecognizedCard(PciRegistryInfo,
                                             PciData,
                                             HALP_CARD_FEATURE_FULL_DECODE))
                    {
                        /* We'll do chipset checks later */
                        DbgPrint("\tDevice has Extended Address Decoding. It may fail to work on older BIOSes!\n");
                        ExtendedAddressDecoding = TRUE;
                    }
                }

                /* Now check the registry for chipset hacks */
                Status = HalpGetChipHacks(PciData->VendorID,
                                          PciData->DeviceID,
                                          PciData->RevisionID,
                                          &HackFlags);
                if (NT_SUCCESS(Status))
                {
                    /* Check for broken ACPI routing */
                    if (HackFlags & HAL_PCI_CHIP_HACK_DISABLE_ACPI_IRQ_ROUTING)
                    {
                        DbgPrint("This chipset has broken ACPI IRQ Routing! Be aware!\n\n");
                        continue;
                    }

                    /* Check for broken ACPI timer */
                    if (HackFlags & HAL_PCI_CHIP_HACK_BROKEN_ACPI_TIMER)
                    {
                         DbgPrint("This chipset has a broken ACPI timer! Be aware!\n\n");
                         continue;
                    }

                    /* Check for hibernate-disable */
                    if (HackFlags & HAL_PCI_CHIP_HACK_DISABLE_HIBERNATE)
                    {
                        DbgPrint("This chipset has a broken PCI device which is incompatible with hibernation. Be aware!\n\n");
                        continue;
                    }

                    /* Check for USB controllers that generate SMIs */
                    if (HackFlags & HAL_PCI_CHIP_HACK_USB_SMI_DISABLE)
                    {
                        DbgPrint("This chipset has a USB controller which generates SMIs. ReactOS will likely fail to boot!\n\n");
                        continue;
                    }
                }

                /* Terminate the entry */
                DbgPrint("\n");
            }
        }
    }

    /* Initialize NMI Crash Flag */
    HalpGetNMICrashFlag();

    /* Free the registry data */
    ExFreePoolWithTag(PciRegistryInfo, TAG_HAL);

    /* Tell PnP if this hard supports correct decoding */
    HalpMarkChipsetDecode(ExtendedAddressDecoding);
    DbgPrint("====== PCI BUS DETECTION COMPLETE =======\n\n");
#endif
}

HalpIsBridgeDevice()

INIT_FUNCTION BOOLEAN NTAPI HalpIsBridgeDevice

(

IN PPCI_COMMON_CONFIG

PciData

)

Definition at line 645 of file bussupp.c.

{
    /* Either this is a PCI-to-PCI Bridge, or a CardBUS Bridge */
    return (((PCI_CONFIGURATION_TYPE(PciData) == PCI_BRIDGE_TYPE) &&
             (PciData->BaseClass == PCI_CLASS_BRIDGE_DEV) &&
             (PciData->SubClass == PCI_SUBCLASS_BR_PCI_TO_PCI)) ||
            ((PCI_CONFIGURATION_TYPE(PciData) == PCI_CARDBUS_BRIDGE_TYPE) &&
             (PciData->BaseClass == PCI_CLASS_BRIDGE_DEV) &&
             (PciData->SubClass == PCI_SUBCLASS_BR_CARDBUS)));
}

Referenced by HalpGetPciBridgeConfig().

HalpIsIdeDevice()

INIT_FUNCTION BOOLEAN NTAPI HalpIsIdeDevice

(

IN PPCI_COMMON_CONFIG

PciData

)

Definition at line 592 of file bussupp.c.

{
    /* Simple test first */
    if ((PciData->BaseClass == PCI_CLASS_MASS_STORAGE_CTLR) &&
        (PciData->SubClass == PCI_SUBCLASS_MSC_IDE_CTLR))
    {
        /* The device is nice enough to admit it */
        return TRUE;
    }

    /* Symphony 82C101 */
    if (PciData->VendorID == 0x1C1C) return TRUE;

    /* ALi MS4803 or M5219 */
    if ((PciData->VendorID == 0x10B9) &&
        ((PciData->DeviceID == 0x5215) || (PciData->DeviceID == 0x5219)))
    {
        return TRUE;
    }

    /* Appian Technology */
    if ((PciData->VendorID == 0x1097) && (PciData->DeviceID == 0x38)) return TRUE;

    /* Compaq Triflex Dual EIDE Controller */
    if ((PciData->VendorID == 0xE11) && (PciData->DeviceID == 0xAE33)) return TRUE;

    /* Micron PC Tech RZ1000 */
    if ((PciData->VendorID == 0x1042) && (PciData->DeviceID == 0x1000)) return TRUE;

    /* SiS 85C601 or 5513 [IDE] */
    if ((PciData->VendorID == 0x1039) &&
        ((PciData->DeviceID == 0x601) || (PciData->DeviceID == 0x5513)))
    {
        return TRUE;
    }

    /* Symphony Labs W83769F */
    if ((PciData->VendorID == 0x10AD) &&
        ((PciData->DeviceID == 0x1) || (PciData->DeviceID == 0x150)))
    {
        return TRUE;
    }

    /* UMC UM8673F */
    if ((PciData->VendorID == 0x1060) && (PciData->DeviceID == 0x101)) return TRUE;

    /* You've survived */
    return FALSE;
}

Referenced by HalpInitializePciBus().

HalpIsRecognizedCard()

INIT_FUNCTION BOOLEAN NTAPI HalpIsRecognizedCard	(	IN PPCI_REGISTRY_INFO_INTERNAL	PciRegistryInfo,
		IN PPCI_COMMON_CONFIG	PciData,
		IN ULONG	Flags
	)

Definition at line 511 of file bussupp.c.

{
    ULONG ElementCount, i;
    PPCI_CARD_DESCRIPTOR CardDescriptor;

    /* How many PCI Cards that we know about? */
    ElementCount = PciRegistryInfo->ElementCount;
    if (!ElementCount) return FALSE;

    /* Loop all descriptors */
    CardDescriptor = &PciRegistryInfo->CardList[0];
    for (i = 0; i < ElementCount; i++, CardDescriptor++)
    {
        /* Check for flag match */
        if (CardDescriptor->Flags != Flags) continue;

        /* Check for VID-PID match */
        if ((CardDescriptor->VendorID != PciData->VendorID) ||
            (CardDescriptor->DeviceID != PciData->DeviceID))
        {
            /* Skip */
            continue;
        }

        /* Check for revision match, if requested */
        if ((CardDescriptor->Flags & HALP_CHECK_CARD_REVISION_ID) &&
            (CardDescriptor->RevisionID != PciData->RevisionID))
        {
            /* Skip */
            continue;
        }

        /* Check what kind of device this is */
        switch (PCI_CONFIGURATION_TYPE(PciData))
        {
            /* CardBUS Bridge */
            case PCI_CARDBUS_BRIDGE_TYPE:

                /* This means the real device header is in the device-specific data */
                PciData = (PPCI_COMMON_CONFIG)PciData->DeviceSpecific;

            /* Normal PCI device */
            case PCI_DEVICE_TYPE:

                /* Check for subvendor match, if requested */
                if ((CardDescriptor->Flags & HALP_CHECK_CARD_SUBVENDOR_ID) &&
                    (CardDescriptor->SubsystemVendorID != PciData->u.type0.SubVendorID))
                {
                    /* Skip */
                    continue;
                }

                /* Check for subsystem match, if requested */
                if ((CardDescriptor->Flags & HALP_CHECK_CARD_SUBSYSTEM_ID) &&
                    (CardDescriptor->SubsystemID != PciData->u.type0.SubSystemID))
                {
                    /* Skip */
                    continue;
                }

                /* You made it! */
                return TRUE;

            /* PCI Bridge -- don't bother */
            case PCI_BRIDGE_TYPE:
            default:

                /* Recognize it */
                return TRUE;
        }
    }

    /* This means the card isn't recognized */
    return FALSE;
}

Referenced by HalpInitializePciBus().

HalpIsValidPCIDevice()

INIT_FUNCTION BOOLEAN NTAPI HalpIsValidPCIDevice	(	IN PBUS_HANDLER	BusHandler,
		IN PCI_SLOT_NUMBER	Slot
	)

Definition at line 385 of file bussupp.c.

{
    UCHAR DataBuffer[PCI_COMMON_HDR_LENGTH];
    PPCI_COMMON_CONFIG PciHeader = (PVOID)DataBuffer;
    ULONG i;
    ULONG_PTR Address;

    /* Read the PCI header */
    HalpReadPCIConfig(BusHandler, Slot, PciHeader, 0, PCI_COMMON_HDR_LENGTH);

    /* Make sure it's a valid device */
    if ((PciHeader->VendorID == PCI_INVALID_VENDORID) ||
        (PCI_CONFIGURATION_TYPE(PciHeader) != PCI_DEVICE_TYPE))
    {
        /* Bail out */
        return FALSE;
    }

    /* Make sure interrupt numbers make sense */
    if (((PciHeader->u.type0.InterruptPin) &&
         (PciHeader->u.type0.InterruptPin > 4)) ||
        (PciHeader->u.type0.InterruptLine & 0x70))
    {
        /* Bail out */
        return FALSE;
    }

    /* Now scan PCI BARs */
    for (i = 0; i < PCI_TYPE0_ADDRESSES; i++)
    {
        /* Check what kind of address it is */
        Address = PciHeader->u.type0.BaseAddresses[i];
        if (Address & PCI_ADDRESS_IO_SPACE)
        {
            /* Highest I/O port is 65535 */
            if (Address > 0xFFFF) return FALSE;
        }
        else
        {
            /* MMIO should be higher than 0x80000 */
            if ((Address > 0xF) && (Address < 0x80000)) return FALSE;
        }

        /* Is this a 64-bit address? */
        if (!(Address & PCI_ADDRESS_IO_SPACE) &&
            ((Address & PCI_ADDRESS_MEMORY_TYPE_MASK) == PCI_TYPE_64BIT))
        {
            /* Check the next-next entry, since this one 64-bits wide */
            i++;
        }
    }

    /* Header, interrupt and address data all make sense */
    return TRUE;
}

Referenced by HalpInitializePciBus().

HalpMarkChipsetDecode() [1/2]

INIT_FUNCTION NTSTATUS NTAPI HalpMarkChipsetDecode

(

IN BOOLEAN

OverrideEnable

)

Referenced by HalpInitializePciBus().

HalpMarkChipsetDecode() [2/2]

INIT_FUNCTION NTSTATUS NTAPI HalpMarkChipsetDecode

(

BOOLEAN

OverrideEnable

)

Definition at line 252 of file bussupp.c.

{
    NTSTATUS Status;
    UNICODE_STRING KeyString;
    ULONG Data = OverrideEnable;
    HANDLE KeyHandle, Handle;

    /* Open CCS key */
    RtlInitUnicodeString(&KeyString,
                         L"\\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET");
    Status = HalpOpenRegistryKey(&Handle, 0, &KeyString, KEY_ALL_ACCESS, FALSE);
    if (NT_SUCCESS(Status))
    {
        /* Open PNP Bios key */
        RtlInitUnicodeString(&KeyString, L"Control\\Biosinfo\\PNPBios");
        Status = HalpOpenRegistryKey(&KeyHandle,
                                     Handle,
                                     &KeyString,
                                     KEY_ALL_ACCESS,
                                     TRUE);

        /* Close root key */
        ZwClose(Handle);

        /* Check if PNP BIOS key exists */
        if (NT_SUCCESS(Status))
        {
            /* Set the override value */
            RtlInitUnicodeString(&KeyString, L"FullDecodeChipsetOverride");
            Status = ZwSetValueKey(KeyHandle,
                                   &KeyString,
                                   0,
                                   REG_DWORD,
                                   &Data,
                                   sizeof(Data));

            /* Close subkey */
            ZwClose(KeyHandle);
        }
    }

    /* Return status */
    return Status;
}

HalpRegisterInternalBusHandlers()

INIT_FUNCTION VOID NTAPI HalpRegisterInternalBusHandlers

(

VOID

)

Definition at line 177 of file bussupp.c.

{
    PBUS_HANDLER Bus;

    /* Only do processor 1 */
    if (KeGetCurrentPrcb()->Number) return;

    /* Register root support */
    HalpInitBusHandler();

    /* Allocate the system bus */
    Bus = HalpAllocateBusHandler(Internal,
                                 ConfigurationSpaceUndefined,
                                 0,
                                 InterfaceTypeUndefined,
                                 0,
                                 0);
    if (Bus)
    {
        /* Set it up */
        Bus->GetInterruptVector = HalpGetSystemInterruptVector;
        Bus->TranslateBusAddress = HalpTranslateSystemBusAddress;
    }

    /* Allocate the CMOS bus */
    Bus = HalpAllocateBusHandler(InterfaceTypeUndefined,
                                 Cmos,
                                 0,
                                 InterfaceTypeUndefined,
                                 0,
                                 0);
    if (Bus)
    {
        /* Set it up */
        Bus->GetBusData = HalpcGetCmosData;
        Bus->SetBusData = HalpcSetCmosData;
    }

    /* Allocate the CMOS bus */
    Bus = HalpAllocateBusHandler(InterfaceTypeUndefined,
                                 Cmos,
                                 1,
                                 InterfaceTypeUndefined,
                                 0,
                                 0);
    if (Bus)
    {
        /* Set it up */
        Bus->GetBusData = HalpcGetCmosData;
        Bus->SetBusData = HalpcSetCmosData;
    }

    /* Allocate ISA bus */
    Bus = HalpAllocateBusHandler(Isa,
                                 ConfigurationSpaceUndefined,
                                 0,
                                 Internal,
                                 0,
                                 0);
    if (Bus)
    {
        /* Set it up */
        Bus->GetBusData = HalpNoBusData;
        Bus->BusAddresses->Memory.Limit = 0xFFFFFF;
        Bus->TranslateBusAddress = HalpTranslateIsaBusAddress;
    }

    /* No support for EISA or MCA */
    ASSERT(HalpBusType == MACHINE_TYPE_ISA);
}

Referenced by HalpInitBusHandlers().

HalpRegisterKdSupportFunctions()

INIT_FUNCTION VOID NTAPI HalpRegisterKdSupportFunctions

(

VOID

)

Definition at line 1240 of file bussupp.c.

{
    /* Register PCI Device Functions */
    KdSetupPciDeviceForDebugging = HalpSetupPciDeviceForDebugging;
    KdReleasePciDeviceforDebugging = HalpReleasePciDeviceForDebugging;

    /* Register memory functions */
#ifndef _MINIHAL_
#if (NTDDI_VERSION >= NTDDI_VISTA)
    KdMapPhysicalMemory64 = HalpMapPhysicalMemory64Vista;
    KdUnmapVirtualAddress = HalpUnmapVirtualAddressVista;
#else
    KdMapPhysicalMemory64 = HalpMapPhysicalMemory64;
    KdUnmapVirtualAddress = HalpUnmapVirtualAddress;
#endif
#endif

    /* Register ACPI stub */
    KdCheckPowerButton = HalpCheckPowerButton;
}

HalSetBusData()

ULONG NTAPI HalSetBusData	(	IN BUS_DATA_TYPE	BusDataType,
		IN ULONG	BusNumber,
		IN ULONG	SlotNumber,
		IN PVOID	Buffer,
		IN ULONG	Length
	)

Definition at line 1575 of file bussupp.c.

{
    /* Call the extended function */
    return HalSetBusDataByOffset(BusDataType,
                                 BusNumber,
                                 SlotNumber,
                                 Buffer,
                                 0,
                                 Length);
}

HalSetBusDataByOffset()

ULONG NTAPI HalSetBusDataByOffset	(	IN BUS_DATA_TYPE	BusDataType,
		IN ULONG	BusNumber,
		IN ULONG	SlotNumber,
		IN PVOID	Buffer,
		IN ULONG	Offset,
		IN ULONG	Length
	)

Definition at line 1595 of file bussupp.c.

{
    PBUS_HANDLER Handler;
    ULONG Status;

    /* Find the handler */
    Handler = HaliReferenceHandlerForConfigSpace(BusDataType, BusNumber);
    if (!Handler) return 0;

    /* Do the assignment */
    Status = Handler->SetBusData(Handler,
                                 Handler,
                                 SlotNumber,
                                 Buffer,
                                 Offset,
                                 Length);

    /* Dereference the handler and return */
    HalDereferenceBusHandler(Handler);
    return Status;
}

Referenced by HalSetBusData().

HalTranslateBusAddress()

BOOLEAN NTAPI HalTranslateBusAddress	(	IN INTERFACE_TYPE	InterfaceType,
		IN ULONG	BusNumber,
		IN PHYSICAL_ADDRESS	BusAddress,
		IN OUT PULONG	AddressSpace,
		OUT PPHYSICAL_ADDRESS	TranslatedAddress
	)

Definition at line 1627 of file bussupp.c.

{
    /* Look as the bus type */
    if (InterfaceType == PCIBus)
    {
        /* Call the PCI registered function */
        return HalPciTranslateBusAddress(PCIBus,
                                         BusNumber,
                                         BusAddress,
                                         AddressSpace,
                                         TranslatedAddress);
    }
    else
    {
        /* Call the bus handler */
        return HaliTranslateBusAddress(InterfaceType,
                                       BusNumber,
                                       BusAddress,
                                       AddressSpace,
                                       TranslatedAddress);
    }
}

Referenced by HaliFindBusAddressTranslation().

ShowSize() [1/2]

INIT_FUNCTION VOID NTAPI ShowSize

(

IN ULONG

Size

)

Referenced by HalpDebugPciDumpBus().

ShowSize() [2/2]

INIT_FUNCTION VOID NTAPI ShowSize

(

ULONG

x

)

Definition at line 775 of file bussupp.c.

{
    if (!x) return;
    DbgPrint(" [size=");
    if (x < 1024)
    {
        DbgPrint("%d", (int) x);
    }
    else if (x < 1048576)
    {
        DbgPrint("%dK", (int)(x / 1024));
    }
    else if (x < 0x80000000)
    {
        DbgPrint("%dM", (int)(x / 1048576));
    }
    else
    {
        DbgPrint("%d", x);
    }
    DbgPrint("]");
}

Variable Documentation

HalpPCIConfigLock

KSPIN_LOCK HalpPCIConfigLock

Definition at line 19 of file pci.c.

Referenced by HalpInitializePciBus(), HalpInitializePciStubs(), HalpPCIReleaseSynchronizationType2(), HalpPCIReleaseSynchronzationType1(), HalpPCIReleaseSynchronzationType2(), HalpPCISynchronizeType1(), and HalpPCISynchronizeType2().

HalpPciIrqMask

ULONG HalpPciIrqMask

Definition at line 123 of file bussupp.c.

Referenced by HalpInitializePciBus().

WarningsGiven

BOOLEAN WarningsGiven[5]

static

Definition at line 442 of file bussupp.c.

Referenced by HalpFixupPciSupportedRanges(), and HalpGetPciBridgeConfig().