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windows-nt/Source/XPSP1/NT/base/busdrv/pccard/pcmcibus/intrface.c

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/*++
Copyright (c) 1994 Microsoft Corporation
Module Name:
intrface.c
Abstract:
This module contains the external interfaces of the
pcmcia driver
Author:
Neil Sandlin (neilsa) 3-Mar-1999
Environment:
Kernel mode
Revision History :
--*/
#include "pch.h"
//
// Internal References
//
ULONG
PcmciaReadCardMemory(
IN PDEVICE_OBJECT Pdo,
IN ULONG WhichSpace,
OUT PUCHAR Buffer,
IN ULONG Offset,
IN ULONG Length
);
ULONG
PcmciaWriteCardMemory(
IN PDEVICE_OBJECT Pdo,
IN ULONG WhichSpace,
IN PUCHAR Buffer,
IN ULONG Offset,
IN ULONG Length
);
NTSTATUS
PcmciaMfEnumerateChild(
IN PPDO_EXTENSION PdoExtension,
IN ULONG Index,
OUT PMF_DEVICE_INFO ChildInfo
);
BOOLEAN
PcmciaModifyMemoryWindow(
IN PDEVICE_OBJECT Pdo,
IN ULONGLONG HostBase,
IN ULONGLONG CardBase,
IN BOOLEAN Enable,
IN ULONG WindowSize OPTIONAL,
IN UCHAR AccessSpeed OPTIONAL,
IN UCHAR BusWidth OPTIONAL,
IN BOOLEAN IsAttributeMemory OPTIONAL
);
BOOLEAN
PcmciaSetVpp(
IN PDEVICE_OBJECT Pdo,
IN UCHAR VppLevel
);
BOOLEAN
PcmciaIsWriteProtected(
IN PDEVICE_OBJECT Pdo
);
BOOLEAN
PcmciaTranslateBusAddress(
IN PVOID Context,
IN PHYSICAL_ADDRESS BusAddress,
IN ULONG Length,
IN OUT PULONG AddressSpace,
OUT PPHYSICAL_ADDRESS TranslatedAddress
);
PDMA_ADAPTER
PcmciaGetDmaAdapter(
IN PVOID Context,
IN struct _DEVICE_DESCRIPTION *DeviceDescriptor,
OUT PULONG NumberOfMapRegisters
);
VOID
PcmciaNop(
IN PVOID Context
);
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, PcmciaPdoQueryInterface)
#pragma alloc_text(PAGE, PcmciaMfEnumerateChild)
#pragma alloc_text(PAGE, PcmciaNop)
#pragma alloc_text(PAGE, PcmciaGetInterface)
#pragma alloc_text(PAGE, PcmciaUpdateInterruptLine)
#endif
NTSTATUS
PcmciaPdoQueryInterface(
IN PDEVICE_OBJECT Pdo,
IN OUT PIRP Irp
)
/*++
Routine Description:
Fills in the interface requested
Interfaces supported are:
GUID_PCMCIA_INTERFACE_STANDARD:
This returns a pointer to a PCMCIA_INTERFACE_STANDARD structure.
These interfaces are exported solely for flash memory card support as
a means for flash memory card drivers to slide memory windows,
set Vpp levels etc.
GUID_TRANSLATOR_INTERFACE_STANDARD:
This returns an interrupt translator for 16-bit pc-cards which is used
by PnP for translating raw IRQs. We simply return the Hal implemented
translator, since PCMCIA does not need any specific translation. We do not
return a translator if this is for a cardbus card
GUID_PCMCIA_BUS_INTERFACE_STANDARD:
This returns a pointer to a PCMCIA_BUS_INTERFACE_STANDARD structure.
This contains entry points to set/get PCMCIA config data for the pc-card
GUID_MF_ENUMERATION_INTERFACE
For 16-bit multifunction pc-cards returns a pointer to MF_ENUMERATION_INTERFACE
structure which contains entry points to enumerate multifunction children of
the pc-card
Completes the Passed in IRP before returning
Arguments
Pdo - Pointer to the device object
Irp - Pointer to the io request packet
Return Value
STATUS_SUCCESS
STATUS_INSUFFICIENT_RESOURCES - if supplied interface size is
not big enough to accomodate the interface
STATUS_INVALID_PARAMETER_1 - if the requested interface is not supported
by this driver
--*/
{
PIO_STACK_LOCATION irpStack;
PPCMCIA_INTERFACE_STANDARD pcmciaInterfaceStandard;
GUID *interfaceType;
PPDO_EXTENSION pdoExtension;
PFDO_EXTENSION fdoExtension;
PSOCKET socket;
NTSTATUS status;
PAGED_CODE();
irpStack = IoGetCurrentIrpStackLocation(Irp);
interfaceType = (GUID *) irpStack->Parameters.QueryInterface.InterfaceType;
pdoExtension = Pdo->DeviceExtension;
socket = pdoExtension->Socket;
fdoExtension = socket->DeviceExtension;
if (Is16BitCard(pdoExtension) && CompareGuid(interfaceType, (PVOID) &GUID_PCMCIA_INTERFACE_STANDARD)) {
if (irpStack->Parameters.QueryInterface.Size < sizeof(PCMCIA_INTERFACE_STANDARD)) {
return STATUS_INVALID_PARAMETER;
}
//
// Ignore the version for the present
//
pcmciaInterfaceStandard = (PPCMCIA_INTERFACE_STANDARD) irpStack->Parameters.QueryInterface.Interface;
RtlZeroMemory(pcmciaInterfaceStandard, sizeof (PCMCIA_INTERFACE_STANDARD));
pcmciaInterfaceStandard->Size = sizeof(PCMCIA_INTERFACE_STANDARD);
pcmciaInterfaceStandard->Version = 1;
pcmciaInterfaceStandard->Context = Pdo;
//
// Fill in the exported functions
//
socket = pdoExtension->Socket;
ASSERT (socket != NULL);
pcmciaInterfaceStandard->InterfaceReference = (PINTERFACE_REFERENCE) PcmciaNop;
pcmciaInterfaceStandard->InterfaceDereference = (PINTERFACE_DEREFERENCE) PcmciaNop;
pcmciaInterfaceStandard->ModifyMemoryWindow = PcmciaModifyMemoryWindow;
pcmciaInterfaceStandard->SetVpp = PcmciaSetVpp;
pcmciaInterfaceStandard->IsWriteProtected = PcmciaIsWriteProtected;
Irp->IoStatus.Status = status = STATUS_SUCCESS;;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
} else if (CompareGuid(interfaceType, (PVOID) &GUID_TRANSLATOR_INTERFACE_STANDARD)
&& ((ULONG_PTR)irpStack->Parameters.QueryInterface.InterfaceSpecificData ==
CmResourceTypeInterrupt)) {
if ((Is16BitCard(pdoExtension) && !IsSocketFlagSet(pdoExtension->Socket, SOCKET_CB_ROUTE_R2_TO_PCI)) &&
//
// Eject a translator only if the controller is PCI enumerated
// (i.e. we are enumerated by PCI - so we eject a PCI-Isa translator)
//
(CardBusExtension(fdoExtension) || PciPcmciaBridgeExtension(fdoExtension))) {
PTRANSLATOR_INTERFACE translator;
ULONG busNumber;
//
// We need a translator for this PDO (16-bit pc-card) which uses
// ISA resources.
//
status = HalGetInterruptTranslator(
PCIBus,
0,
Isa,
irpStack->Parameters.QueryInterface.Size,
irpStack->Parameters.QueryInterface.Version,
(PTRANSLATOR_INTERFACE) irpStack->Parameters.QueryInterface.Interface,
&busNumber
);
Irp->IoStatus.Status = status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
} else {
//
// Translator interface not supported for this card/controller
//
if (pdoExtension->LowerDevice != NULL) {
PcmciaSkipCallLowerDriver(status, pdoExtension->LowerDevice, Irp);
} else {
status = Irp->IoStatus.Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
}
}
} else if (IsDeviceMultifunction(pdoExtension) && CompareGuid(interfaceType, (PVOID)&GUID_MF_ENUMERATION_INTERFACE)) {
//
// Multifunction enumeration interface
//
PMF_ENUMERATION_INTERFACE mfEnum;
mfEnum = (PMF_ENUMERATION_INTERFACE) irpStack->Parameters.QueryInterface.Interface;
mfEnum->Context = pdoExtension;
mfEnum->InterfaceReference = PcmciaNop;
mfEnum->InterfaceDereference = PcmciaNop;
mfEnum->EnumerateChild = (PMF_ENUMERATE_CHILD) PcmciaMfEnumerateChild;
status = Irp->IoStatus.Status = STATUS_SUCCESS;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
} else if (CompareGuid(interfaceType, (PVOID)&GUID_PCMCIA_BUS_INTERFACE_STANDARD)) {
PPCMCIA_BUS_INTERFACE_STANDARD busInterface;
busInterface = (PPCMCIA_BUS_INTERFACE_STANDARD) irpStack->Parameters.QueryInterface.Interface;
busInterface->Context = Pdo;
busInterface->InterfaceReference = PcmciaNop;
busInterface->InterfaceDereference = PcmciaNop;
busInterface->ReadConfig = PcmciaReadCardMemory;
busInterface->WriteConfig = PcmciaWriteCardMemory;
status = Irp->IoStatus.Status = STATUS_SUCCESS;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
} else if (Is16BitCard(pdoExtension) && CompareGuid(interfaceType, (PVOID) &GUID_BUS_INTERFACE_STANDARD)) {
PBUS_INTERFACE_STANDARD busInterface = (PBUS_INTERFACE_STANDARD)irpStack->Parameters.QueryInterface.Interface;
busInterface->Size = sizeof( BUS_INTERFACE_STANDARD );
busInterface->Version = 1;
busInterface->Context = Pdo;
busInterface->InterfaceReference = PcmciaNop;
busInterface->InterfaceDereference = PcmciaNop;
busInterface->TranslateBusAddress = PcmciaTranslateBusAddress;
busInterface->GetDmaAdapter = PcmciaGetDmaAdapter;
busInterface->GetBusData = PcmciaReadCardMemory;
busInterface->SetBusData = PcmciaWriteCardMemory;
status = Irp->IoStatus.Status = STATUS_SUCCESS;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
} else {
//
// Query Interface type not supported
//
if (pdoExtension->LowerDevice != NULL) {
PcmciaSkipCallLowerDriver(status, pdoExtension->LowerDevice, Irp);
} else {
status = Irp->IoStatus.Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
}
}
return status;
}
ULONG
PcmciaReadCardMemory(
IN PDEVICE_OBJECT Pdo,
IN ULONG WhichSpace,
OUT PUCHAR Buffer,
IN ULONG Offset,
IN ULONG Length
)
/*++
Routine Description:
Stub for reading card memory which is exported via
PCMCIA_BUS_INTERFACE_STANDARD. This just calls the
PcmciaReadWriteCardMemory which does the real work
Note: this has to be non-paged since it can be called by
clients at DISPATCH_LEVEL
Arguments:
Pdo - Device object representing the PC-CARD whose config memory needs to be read
WhichSpace - Indicates which memory space needs to be mapped: one of
PCCARD_COMMON_MEMORY_SPACE
PCCARD_ATTRIBUTE_MEMORY_SPACE
PCCARD_PCI_CONFIGURATION_MEMORY_SPACE (only for cardbus cards)
Buffer - Caller supplied buffer into which the memory contents are copied
Offset - Offset of the attribute memory at which we copy
Length - Number of bytes of attribute memory to be copied
Return value:
Count of bytes read
--*/
{
DebugPrint((PCMCIA_DEBUG_INTERFACE, "pdo %08x read card memory\n", Pdo));
return NT_SUCCESS(PcmciaReadWriteCardMemory(Pdo, WhichSpace, Buffer, Offset, Length, TRUE)) ?
Length : 0;
}
ULONG
PcmciaWriteCardMemory(
IN PDEVICE_OBJECT Pdo,
IN ULONG WhichSpace,
IN PUCHAR Buffer,
IN ULONG Offset,
IN ULONG Length
)
/*++
Routine Description:
Stub for writing to card memory which is exported via
PCMCIA_BUS_INTERFACE_STANDARD. This just calls
PcmciaReadWriteCardMemory which does the real work
Note: this has to be non-paged since it can be called by
clients at DISPATCH_LEVEL
Arguments:
Pdo - Device object representing the PC-CARD whose config memory needs to be written to
WhichSpace - Indicates which memory space needs to be mapped: one of
PCCARD_COMMON_MEMORY_SPACE
PCCARD_ATTRIBUTE_MEMORY_SPACE
PCCARD_PCI_CONFIGURATION_MEMORY_SPACE (only for cardbus cards)
Buffer - Caller supplied buffer out of which the memory contents are copied
Offset - Offset of the attribute memory at which we copy
Length - Number of bytes of buffer to be copied
Return value:
Count of bytes written
--*/
{
DebugPrint((PCMCIA_DEBUG_INTERFACE, "pdo %08x write card memory\n", Pdo));
return NT_SUCCESS(PcmciaReadWriteCardMemory(Pdo, WhichSpace, Buffer, Offset, Length, FALSE)) ?
Length : 0;
}
BOOLEAN
PcmciaModifyMemoryWindow(
IN PDEVICE_OBJECT Pdo,
IN ULONGLONG HostBase,
IN ULONGLONG CardBase,
IN BOOLEAN Enable,
IN ULONG WindowSize OPTIONAL,
IN UCHAR AccessSpeed OPTIONAL,
IN UCHAR BusWidth OPTIONAL,
IN BOOLEAN IsAttributeMemory OPTIONAL
)
/*++
Routine Description:
Part of the interfaces originally developed to
support flash memory cards.
This routine enables the caller to 'slide' the supplied
host memory window across the given (16-bit)pc-card's card memory.
i.e. the host memory window will be modified to map
the pc-card at a new card memory offset
Arguments:
Pdo - Pointer to the device object for the PC-Card
HostBase - Host memory window base to be mapped
CardBase - Mandatory if Enable is TRUE
New card memory offset to map the host memory window
to
Enable - If this is FALSE - all the remaining arguments
are ignored and the host window will simply be
disabled
WindowSize - Specifies the size of the host memory window to
be mapped. Note this must be at the proper alignment
and must be less than or equal to the originally
allocated window size for the host base.
If this is zero, the originally allocated window
size will be used.
AccessSpeed - Mandatory if Enable is TRUE
Specifies the new access speed for the pc-card.
(AccessSpeed should be encoded as per the pc-card
standard, card/socket services spec)
BusWidth - Mandatory if Enable is TRUE
One of PCMCIA_MEMORY_8BIT_ACCESS
or PCMCIA_MEMORY_16BIT_ACCESS
IsAttributeMemory - Mandatory if Enable is TRUE
Specifies if the window should be mapped
to the pc-card's attribute or common memory
Return Value:
TRUE - Memory window was enabled/disabled as requested
FALSE - If not
--*/
{
PPDO_EXTENSION pdoExtension;
PSOCKET socket;
pdoExtension = Pdo->DeviceExtension;
socket = pdoExtension->Socket;
DebugPrint((PCMCIA_DEBUG_INTERFACE, "pdo %08x modify memory window\n", Pdo));
if (socket->SocketFnPtr->PCBModifyMemoryWindow == NULL) {
return FALSE;
} else {
return (*(socket->SocketFnPtr->PCBModifyMemoryWindow))(Pdo, HostBase, CardBase, Enable,
WindowSize, AccessSpeed, BusWidth,
IsAttributeMemory);
}
}
BOOLEAN
PcmciaSetVpp(
IN PDEVICE_OBJECT Pdo,
IN UCHAR VppLevel
)
/*++
Routine Description
Part of the interfaces originally developed to
support flash memory cards.
Sets VPP1 to the required setting
Arguments
Pdo - Pointer to device object for the PC-Card
Vpp - Desired Vpp setting. This is currently one of
PCMCIA_VPP_12V (12 volts)
PCMCIA_VPP_0V (disable VPP)
PCMCIA_VPP_IS_VCC (route VCC to VPP)
Return
TRUE - if successful
FALSE - if not. This will be returned if the
PC-Card is not already powered up
--*/
{
PPDO_EXTENSION pdoExtension;
PSOCKET socket;
pdoExtension = Pdo->DeviceExtension;
socket = pdoExtension->Socket;
DebugPrint((PCMCIA_DEBUG_INTERFACE, "pdo %08x set vpp\n", Pdo));
if (socket->SocketFnPtr->PCBSetVpp == NULL) {
return FALSE;
} else {
return (*(socket->SocketFnPtr->PCBSetVpp))(Pdo, VppLevel);
}
}
BOOLEAN
PcmciaIsWriteProtected(
IN PDEVICE_OBJECT Pdo
)
/*++
Routine Description:
Part of the interfaces originally developed to
support flash memory cards.
Returns the status of the write protected pin
for the given PC-Card
Arguments:
Pdo - Pointer to the device object for the PC-Card
Return Value:
TRUE - if the PC-Card is write-protected
FALSE - if not
--*/
{
PPDO_EXTENSION pdoExtension;
PSOCKET socket;
pdoExtension = Pdo->DeviceExtension;
socket = pdoExtension->Socket;
DebugPrint((PCMCIA_DEBUG_INTERFACE, "pdo %08x is write protected \n", Pdo));
if (socket->SocketFnPtr->PCBIsWriteProtected == NULL) {
return FALSE;
} else {
return (*(socket->SocketFnPtr->PCBIsWriteProtected))(Pdo);
}
}
BOOLEAN
PcmciaTranslateBusAddress(
IN PVOID Context,
IN PHYSICAL_ADDRESS BusAddress,
IN ULONG Length,
IN OUT PULONG AddressSpace,
OUT PPHYSICAL_ADDRESS TranslatedAddress
)
/*++
Routine Description
This function is used to translate bus addresses from legacy drivers.
Arguments
Context - Supplies a pointer to the interface context. This is actually
the PDO for the root bus.
BusAddress - Supplies the orginal address to be translated.
Length - Supplies the length of the range to be translated.
AddressSpace - Points to the location of of the address space type such as
memory or I/O port. This value is updated by the translation.
TranslatedAddress - Returns the translated address.
Return Value
Returns a boolean indicating if the operations was a success.
--*/
{
return HalTranslateBusAddress(Isa,
0,
BusAddress,
AddressSpace,
TranslatedAddress);
}
PDMA_ADAPTER
PcmciaGetDmaAdapter(
IN PVOID Context,
IN struct _DEVICE_DESCRIPTION *DeviceDescriptor,
OUT PULONG NumberOfMapRegisters
)
/*++
Routine Description
Passes IoGetDmaAdapter calls to the parent.
Arguments
Context - Supplies a pointer to the interface context. This is actually the PDO.
DeviceDescriptor - Supplies the device descriptor used to allocate the dma
adapter object.
NubmerOfMapRegisters - Returns the maximum number of map registers a device
can allocate at one time.
Return Value
Returns a DMA adapter or NULL.
--*/
{
PDEVICE_OBJECT Pdo = Context;
PPDO_EXTENSION pdoExtension;
PFDO_EXTENSION fdoExtension;
pdoExtension = Pdo->DeviceExtension;
if (!pdoExtension || !pdoExtension->Socket || !pdoExtension->Socket->DeviceExtension) {
return NULL;
}
//
// Get the parent FDO extension
//
fdoExtension = pdoExtension->Socket->DeviceExtension;
//
// Pass the call on to the parent
//
return IoGetDmaAdapter(fdoExtension->Pdo,
DeviceDescriptor,
NumberOfMapRegisters);
}
VOID
PcmciaNop(
IN PVOID Context
)
/*++
Routine Description
Does nothing
Arguments
none
Return Value
none
--*/
{
PAGED_CODE();
UNREFERENCED_PARAMETER(Context);
}
NTSTATUS
PcmciaMfEnumerateChild(
IN PPDO_EXTENSION PdoExtension,
IN ULONG Index,
OUT PMF_DEVICE_INFO ChildInfo
)
/*++
Routine Description
Returns required enumeration information for the multifunction children
of the given pc-card. This fills in the required info. for the child
indicated, returing STATUS_NO_MORE_ENTRIES when there are no more
children to be enumerated
Arguments
PdoExtension - Pointer to the device extension for the multifunction parent pc-card
Index - Zero based index for the child to be enumerated
ChildInfo - Caller allocated buffer in which the info about the child is returned.
We may allocate additional buffers for each field in the supplied
structure. This will be freed by the caller when no longer needed
Return value
STATUS_SUCCESS - supplied child info filled in & returned
STATUS_NO_MORE_ENTRIES - No child of the given index exists. Caller is
assumed to iteratively call this routine with index incremented
from 0 upwards till this status value is returned
STATUS_NO_SUCH_DEVICE - if the pc-card no longer exists
--*/
{
PSOCKET socket;
PSOCKET_DATA socketData;
PCONFIG_ENTRY configEntry, mfConfigEntry;
ULONG i, currentIndex, count;
NTSTATUS status;
UCHAR iRes;
PUCHAR idString;
ANSI_STRING ansiString;
PAGED_CODE();
DebugPrint((PCMCIA_DEBUG_INTERFACE,
"PcmciaMfEnumerateChild: parent ext %x child index %x\n",
PdoExtension,
Index
));
try {
if (IsDeviceDeleted(PdoExtension) ||
IsDeviceLogicallyRemoved(PdoExtension)) {
//
// This pdo is deleted or marked to be deleted
//
status = STATUS_NO_SUCH_DEVICE;
leave;
}
socket = PdoExtension->Socket;
ASSERT (socket != NULL);
RtlZeroMemory(ChildInfo, sizeof(MF_DEVICE_INFO));
if (Index >= socket->NumberOfFunctions) {
//
// info requested for a child which doesn't exist
//
status = STATUS_NO_MORE_ENTRIES;
leave;
}
//
// Fill in the name field
// This is of the form ChildXX
// where XX is the number of the function
// Examples: Child00, Child01 etc.
//
idString = (PUCHAR) ExAllocatePool(PagedPool, PCMCIA_MAXIMUM_DEVICE_ID_LENGTH);
if (!idString) {
status = STATUS_INSUFFICIENT_RESOURCES;
leave;
}
sprintf(idString, "Child%02x", Index);
RtlInitAnsiString(&ansiString, idString);
status = RtlAnsiStringToUnicodeString(&ChildInfo->Name,
&ansiString,
TRUE);
ExFreePool(idString);
if (!NT_SUCCESS(status)) {
leave;
}
//
// Get compatible ids
//
status = PcmciaGetCompatibleIds(PdoExtension->DeviceObject,
Index,
&ChildInfo->CompatibleID);
if (!NT_SUCCESS(status)) {
leave;
}
//
// Get hardware ids
//
status = PcmciaGetHardwareIds(PdoExtension->DeviceObject,
Index,
&ChildInfo->HardwareID);
if (!NT_SUCCESS(status)) {
leave;
}
//
// Fill in the resource map stuff
//
// Locate the socket data structure corresponding to this function
for (socketData = PdoExtension->SocketData, i=0; (socketData != NULL) && (i != Index); socketData=socketData->Next, i++);
if (!socketData) {
//
// this condition should never be encountered
//
ASSERT (FALSE);
status = STATUS_NO_MORE_ENTRIES;
leave;
}
if (!(socketData->NumberOfConfigEntries > 0)) {
//
// No resource map required
//
status = STATUS_SUCCESS;
leave;
}
count = (socketData->MfNeedsIrq ? 1 : 0) + socketData->MfIoPortCount + socketData->MfMemoryCount;
if (count == 0) {
ASSERT(FALSE);
//
// No resource map required
//
status = STATUS_SUCCESS;
leave;
}
//
// Allocate resource map
//
ChildInfo->ResourceMap = ExAllocatePool(PagedPool,
sizeof(MF_RESOURCE_MAP) + (count-1) * sizeof(UCHAR));
if (!ChildInfo->ResourceMap) {
status = STATUS_INSUFFICIENT_RESOURCES;
leave;
}
ChildInfo->ResourceMap->Count = count;
//
// Compute the resource map indices
// The config entry *already* contains fields (MfIrqResourceMapIndex, MfIoPortResourceMapIndex etc.)
// which indicate the relative index of the resource requested for this function within the resource type.
// We calculate the absolute index by adding up the number of instances of each resource type requested,
// preceding the current resource type, to this relative index.
//
currentIndex = 0;
//
// Fill the irq map if there's one
//
if (socketData->MfNeedsIrq) {
ChildInfo->ResourceMap->Resources[currentIndex++] = socketData->MfIrqResourceMapIndex;
}
//
// Fill the i/o port map if there's one
//
if (socketData->MfIoPortCount) {
for (iRes=0; iRes<socketData->MfIoPortCount; iRes++) {
ChildInfo->ResourceMap->Resources[currentIndex++] = socketData->MfIoPortResourceMapIndex + iRes;
}
}
//
// Fill the memory request map if there's one
//
if (socketData->MfMemoryCount) {
for (iRes=0; iRes<socketData->MfMemoryCount; iRes++) {
ChildInfo->ResourceMap->Resources[currentIndex++] = socketData->MfMemoryResourceMapIndex + iRes;
}
}
status = STATUS_SUCCESS;
} finally {
if (!NT_SUCCESS(status)) {
//
// Free up all the allocated buffers
//
if (ChildInfo->Name.Buffer) {
ExFreePool(ChildInfo->Name.Buffer);
}
if (ChildInfo->CompatibleID.Buffer) {
ExFreePool(ChildInfo->CompatibleID.Buffer);
}
if (ChildInfo->HardwareID.Buffer) {
ExFreePool(ChildInfo->HardwareID.Buffer);
}
if (ChildInfo->ResourceMap) {
ExFreePool(ChildInfo->ResourceMap);
}
if (ChildInfo->VaryingResourceMap) {
ExFreePool(ChildInfo->ResourceMap);
}
}
}
return status;
}
NTSTATUS
PcmciaGetInterface(
IN PDEVICE_OBJECT DeviceObject,
IN CONST GUID *pGuid,
IN USHORT sizeofInterface,
OUT PINTERFACE pInterface
)
/*
Routine Description
Gets the interface exported by PCI for enumerating 32-bit cardbus cards, which
appear as regular PCI devices. This interface will be used to respond during
subsequent enumeration requests from PnP to invoke PCI to enumerate the cards.
Arguments
Pdo - Pointer to physical device object for the cardbus controller
PciCardBusInterface - Pointer to the PCI-Cardbus interface will be returned
in this variable
Return Value
Status
*/
{
KEVENT event;
PIRP irp;
NTSTATUS status;
IO_STATUS_BLOCK statusBlock;
PIO_STACK_LOCATION irpSp;
PAGED_CODE();
KeInitializeEvent (&event, NotificationEvent, FALSE);
irp = IoBuildSynchronousFsdRequest( IRP_MJ_PNP,
DeviceObject,
NULL,
0,
0,
&event,
&statusBlock
);
irp->IoStatus.Status = STATUS_NOT_SUPPORTED ;
irp->IoStatus.Information = 0;
irpSp = IoGetNextIrpStackLocation(irp);
irpSp->MinorFunction = IRP_MN_QUERY_INTERFACE;
irpSp->Parameters.QueryInterface.InterfaceType= pGuid;
irpSp->Parameters.QueryInterface.Size = sizeofInterface;
irpSp->Parameters.QueryInterface.Version = 1;
irpSp->Parameters.QueryInterface.Interface = pInterface;
status = IoCallDriver(DeviceObject, irp);
if (status == STATUS_PENDING) {
KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
status = statusBlock.Status;
}
if (!NT_SUCCESS(status)) {
DebugPrint((PCMCIA_DEBUG_INFO, "GetInterface failed with status %x\n", status));
}
return status;
}
NTSTATUS
PcmciaUpdateInterruptLine(
IN PPDO_EXTENSION PdoExtension,
IN PFDO_EXTENSION FdoExtension
)
/*
Routine Description
This routine uses the PCI Irq Routing interface to update the raw interrupt
line of a cardbus card. This is done in order to allow cardbus cards to run
on non-acpi machines without pci irq routing, as long as the bios supplies
the interrupt for the cardbus controller.
Arguments
PdoExtension - Pointer to the extension for the cardbus card
FdoExtension - Pointer to the extension for the cardbus controller
Return Value
Status
*/
{
PAGED_CODE();
if (!IsDeviceFlagSet(FdoExtension, PCMCIA_INT_ROUTE_INTERFACE)) {
return STATUS_UNSUCCESSFUL;
}
if (FdoExtension->Configuration.Interrupt.u.Interrupt.Vector == 0) {
return STATUS_UNSUCCESSFUL;
}
(FdoExtension->PciIntRouteInterface.UpdateInterruptLine)(PdoExtension->PciPdo,
(UCHAR) FdoExtension->Configuration.Interrupt.u.Interrupt.Vector);
return STATUS_SUCCESS;
}
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