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windows-nt-4.0/private/ntos/ndis/madge/detect/mdgpci.c

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/****************************************************************************
*
* MDGPCI.C
*
* PCI Adapter Detection Module
*
* Copyright (c) Madge Networks Ltd 1994
*
* COMPANY CONFIDENTIAL - RELEASED TO MICROSOFT CORP. ONLY FOR DEVELOPMENT
* OF WINDOWS95 NETCARD DETECTION - THIS SOURCE IS NOT TO BE RELEASED OUTSIDE
* OF MICROSOFT WITHOUT EXPLICIT WRITTEN PERMISSION FROM AN AUTHORISED
* OFFICER OF MADGE NETWORKS LTD.
*
* Created: PBA 24/11/1994
*
****************************************************************************/
#include <ntddk.h>
#include <ntddnetd.h>
#include <windef.h>
#include <winerror.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mdgncdet.h"
//
// Prototype "borrowed" from WINUSER.H
//
extern int WINAPIV wsprintfW(LPWSTR, LPCWSTR, ...);
//
// Prototypes "borrowed" from WINBASE.H
//
#if !defined(_KERNEL32_)
#define WINBASEAPI DECLSPEC_IMPORT
#else
#define WINBASEAPI
#endif
WINBASEAPI
FARPROC
WINAPI
GetProcAddress(
HINSTANCE hModule,
LPCSTR lpProcName
);
WINBASEAPI
HMODULE
WINAPI
GetModuleHandleA(
LPCSTR lpModuleName
);
WINBASEAPI
HMODULE
WINAPI
GetModuleHandleW(
LPCWSTR lpModuleName
);
#ifdef UNICODE
#define GetModuleHandle GetModuleHandleW
#else
#define GetModuleHandle GetModuleHandleA
#endif // !UNICODE
/*---------------------------------------------------------------------------
|
| PCI adapter types. These correspond to the indexes that the upper layers
| use for identifying adapters, so change them with care.
|
|--------------------------------------------------------------------------*/
#define SMART_NONE 0
#define SMART_PCI 1000
#define SMART_PCI_BM 1100
/*---------------------------------------------------------------------------
|
| PCI Vendor ID.
|
|--------------------------------------------------------------------------*/
#define MADGE_VENDOR_ID 0x10b6
/*---------------------------------------------------------------------------
|
| PCI revision IDs.
|
|--------------------------------------------------------------------------*/
#define MADGE_PCI_RAP1B_REVISION 0x0001
#define MADGE_PCI_PCI2_REVISION 0x0002
#define MADGE_PCI_PCIT_REVISION 0x0004
/*---------------------------------------------------------------------------
|
| PCI Configuration Space.
|
|--------------------------------------------------------------------------*/
#define PCI_CONFIG_SIZE 64
#define PCI_VENDOR_ID(buff) (((UINT *) (buff))[0] & 0x0000ffffL)
#define PCI_REVISION(buff) ((((UINT *) (buff))[0] & 0xffff0000L) >> 16)
/*---------------------------------------------------------------------------
|
| Maximum PCI slot number. (Slot numbers range from 0 to MAX_PCI_SLOT.)
|
|---------------------------------------------------------------------------*/
#define MAX_PCI_SLOT 31
/*---------------------------------------------------------------------------
|
| List of adapter types supported by this module.
|
|---------------------------------------------------------------------------*/
static
ADAPTER_INFO Adapters[] =
{
{
SMART_PCI,
MDGPCI,
L"Madge 16/4 PCI Ringnode",
L"Madge Networks",
L"SLOTNUMBER\0"
L"000\0"
L"00100\0"
L"DMACHANNEL\0"
L"000\0"
L"00100\0"
L"MULTIPROCESSOR\0"
L"000\0"
L"00100\0",
NULL,
900
},
{
SMART_PCI_BM,
MDGPCIBM,
L"Madge 16/4 PCI Ringnode (BM)",
L"Madge Networks",
L"SLOTNUMBER\0"
L"000\0"
L"00100\0"
L"DMACHANNEL\0"
L"000\0"
L"00100\0"
L"MULTIPROCESSOR\0"
L"000\0"
L"00100\0",
NULL,
900
}
};
/*---------------------------------------------------------------------------
|
| Madge specific parameter range information. The order entries in this
| table MUST match that in the Adapters table above. The first value
Ý in each list is the default.
|
---------------------------------------------------------------------------*/
static
struct
{
ULONG SlotNumber[34];
ULONG DmaRange[3];
}
ParamRange[] =
{
//
// Smart 16/4 PCI.
//
{
{ RESOURCE_UNKNOWN,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
END_OF_LIST},
#if defined(_PPC_) || defined(_MIPS_)
{ 0, END_OF_LIST}
#else
{ 0, GENERAL_MMIO, END_OF_LIST}
#endif
},
//
// Smart 16/4 PciT and Pci2 (i.e. Smart 16/4 PCI (BM)).
//
{
{ RESOURCE_UNKNOWN,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
END_OF_LIST},
#if defined(_PPC_) || defined(_MIPS_)
{ GENERAL_DMA, 0, END_OF_LIST}
#else
{ GENERAL_DMA, 0, END_OF_LIST}
#endif
}
};
/*---------------------------------------------------------------------------
|
| Structure for holding state of a search.
|
|--------------------------------------------------------------------------*/
typedef struct
{
ULONG SlotNumber;
}
PCI_SEARCH_STATE;
/*---------------------------------------------------------------------------
|
| This is an array of search states. We need one state for each type
| of adapter supported.
|
|--------------------------------------------------------------------------*/
static
PCI_SEARCH_STATE SearchStates[sizeof(Adapters) / sizeof(ADAPTER_INFO)] = {0};
/*---------------------------------------------------------------------------
|
| Structure for holding a particular adapter's complete information.
|
|--------------------------------------------------------------------------*/
typedef struct
{
BOOLEAN Found;
ULONG CardType;
INTERFACE_TYPE InterfaceType;
ULONG BusNumber;
ULONG SlotNumber;
ULONG Dma;
}
PCI_ADAPTER;
/*---------------------------------------------------------------------------
|
| Function - CheckForCard
|
| Parameters - busNumber -> The number of the bus to check.
| interface -> The interface type of the bus.
| slotNumber -> The slot number to be checked.
|
| Purpose - Check to see if an Madge PCI card in the specified
| slot.
|
| Returns - A card type.
|
---------------------------------------------------------------------------*/
static ULONG
CheckForCard(
ULONG busNumber,
INTERFACE_TYPE interface,
ULONG slotNumber
)
{
HMODULE detectDll;
FARPROC readPciSlot;
UCHAR pciInfo[PCI_CONFIG_SIZE];
MadgePrint2("CheckForCard (slotNumber=%ld)\n", slotNumber);
//
// The DetectReadPciSlotInformation function was not exported under
// NT 3.5 but is available under NT 3.51. So that we can have code
// that works on both versions of NT we will obtain the address of
// the function explicitly rather than using load time linking.
//
detectDll = GetModuleHandle(NET_DETECT_DLL_NAME);
if (detectDll == NULL)
{
MadgePrint1("GetModuleHandle failed\n");
return SMART_NONE;
}
readPciSlot = GetProcAddress(detectDll, "DetectReadPciSlotInformation");
if (readPciSlot == NULL)
{
MadgePrint1("GetProcAddress failed\n");
return SMART_NONE;
}
//
// If we make it here we should have a pointer to the
// DetectReadPciSlotInformation function. All we have to
// do now is cast the function and call.
//
if (((NTSTATUS (*)(ULONG, ULONG, ULONG, ULONG, PVOID)) readPciSlot)(
busNumber,
slotNumber,
0,
PCI_CONFIG_SIZE,
(void *) pciInfo
) == NO_ERROR)
{
if (PCI_VENDOR_ID(pciInfo) == MADGE_VENDOR_ID)
{
switch (PCI_REVISION(pciInfo))
{
case MADGE_PCI_RAP1B_REVISION:
return SMART_PCI;
case MADGE_PCI_PCI2_REVISION:
case MADGE_PCI_PCIT_REVISION:
return SMART_PCI_BM;
}
}
}
return SMART_NONE;
}
/*---------------------------------------------------------------------------
|
| Function - FindPciCard
|
| Parameters - adapterNumber -> Adapter type index used to index the
| global array SearchStates.
| busNumber -> The number of the bus to search.
| interface -> The interface type of the bus.
| first -> TRUE if this is the first call for
| a given adapter type.
| type -> The type of adapter to find.
| confidence -> Pointer a holder for the confidence in
| which the adapter was found.
|
| Purpose - Search the specified bus for an adapter of the
| specified type. If first is TRUE then the search
| starts from the first possible IO location. If first is
| FALSE then the search starts from one after the last
| slot number checked the previous time FindPciCard was called.
|
| Returns - A WINERROR.H error code.
|
|--------------------------------------------------------------------------*/
static ULONG
FindPciCard(
ULONG adapterNumber,
ULONG busNumber,
INTERFACE_TYPE interface,
BOOLEAN first,
ULONG type,
ULONG * confidence
)
{
//
// If this is the first call then we want to start from the
// first possible slot number.
//
if (first)
{
SearchStates[adapterNumber].SlotNumber = 0;
}
//
// Otherwise we want to start from 1 after were we left off
// last time.
//
else
{
SearchStates[adapterNumber].SlotNumber++;
}
//
// Step through the slots in the bus for which there aren't
// already Madge adapters installed looking for one with the
// required adapter type. If we don't find one we will return a
// confidence level of zero.
//
*confidence = 0;
while (SearchStates[adapterNumber].SlotNumber <= MAX_PCI_SLOT)
{
if (!MadgeCardAlreadyInstalled(
TRUE,
busNumber,
SearchStates[adapterNumber].SlotNumber
))
{
if (CheckForCard(
busNumber,
interface,
SearchStates[adapterNumber].SlotNumber
) == type)
{
*confidence = 100;
break;
}
}
SearchStates[adapterNumber].SlotNumber++;
}
return NO_ERROR;
}
/****************************************************************************
*
* Function - MadgePciIdentifyHandler
*
* Parameters - index -> Index of the adapter type. 1000 for the first
* type, 1100 for the second, 1200 for the third
* etc.
* buffer -> Buffer for the results.
* bufferSize -> Size of the buffer in WCHARs.
*
* Purpose - Return information about a type of adapter that this module
* supports.
*
* Returns - A WINERROR.H error code. ERROR_NO_MORE_ITEMS
* is returned if index refers to an adapter type not
* supported.
*
****************************************************************************/
LONG
MadgePciIdentifyHandler(
LONG index,
WCHAR * buffer,
LONG bufferSize
)
{
LONG numberOfAdapters;
LONG action;
LONG length;
LONG i;
MadgePrint2("MadgePciIdentifyHandler (index = %ld)\n", index);
//
// Do some initialisation.
//
numberOfAdapters = sizeof(Adapters) / sizeof(ADAPTER_INFO);
action = index % 100;
index = index - action;
//
// Check that index does not exceed the number of adapters we
// support.
//
if ((index - 1000) / 100 >= numberOfAdapters)
{
return ERROR_NO_MORE_ITEMS;
}
//
// If index refers to an adapter type supported then carry out the
// requested action.
//
for (i = 0; i < numberOfAdapters; i++)
{
if (Adapters[i].Index == index)
{
switch (action)
{
//
// Return the adapter's abbreviation.
//
case 0:
length = UnicodeStrLen(Adapters[i].InfId) + 1;
if (bufferSize < length)
{
return ERROR_INSUFFICIENT_BUFFER;
}
memcpy(
(VOID *) buffer,
Adapters[i].InfId,
length * sizeof(WCHAR)
);
break;
//
// Return the adapter's description.
//
case 1:
length = UnicodeStrLen(Adapters[i].CardDescription) + 1;
if (bufferSize < length)
{
return ERROR_INSUFFICIENT_BUFFER;
}
memcpy(
(VOID *) buffer,
Adapters[i].CardDescription,
length * sizeof(WCHAR)
);
break;
//
// Return the adapter's manufacturer.
//
case 2:
length = UnicodeStrLen(Adapters[i].Manufacturer) + 1;
if (bufferSize < length)
{
return ERROR_INSUFFICIENT_BUFFER;
}
memcpy(
(VOID *) buffer,
Adapters[i].Manufacturer,
length * sizeof(WCHAR)
);
break;
//
// Return the search order.
//
case 3:
if (bufferSize < 5)
{
return ERROR_INSUFFICIENT_BUFFER;
}
wsprintfW(
(VOID *) buffer,
L"%d",
Adapters[i].SearchOrder
);
break;
//
// Anything else is invalid.
//
default:
return ERROR_INVALID_PARAMETER;
}
return NO_ERROR;
}
}
//
// We didn't find an adapter type that matched the index so
// return an error.
//
return ERROR_INVALID_PARAMETER;
}
/****************************************************************************
*
* Function - MadgePciFirstNextHandler
*
* Parameters - index -> Index of the adapter type. 1000 for the first
* type, 1100 for the second, 1200 for the third
* etc.
* interface -> The NT interface type (ISA, EISA etc).
* busNumber -> The bus number to search.
* first -> TRUE if the search of this bus should start
* from scratch.
* token -> Pointer to holder for a token that identifies
* the adapter found.
* confidence -> Pointer to a holder for the confidence by
* which the adapter has been found.
*
* Purpose - Attempts to find an adapter on the specified bus. If first
* is TRUE then the search starts from scratch. Otherwise
* the search starts from where it left of the last time we
* were called.
*
* Returns - A WINERROR.H error code. A return code of NO_ERROR
* and a *confidence of 0 means we didn't find an adapter.
*
****************************************************************************/
LONG
MadgePciFirstNextHandler(
LONG index,
INTERFACE_TYPE interface,
ULONG busNumber,
BOOL first,
VOID * * token,
LONG * confidence
)
{
ULONG retCode;
LONG adapterNumber;
MadgePrint2("MadgePciFirstNextHandler (index = %ld)\n", index);
//
// Check the interface type.
//
if (interface != PCIBus)
{
*confidence = 0;
return NO_ERROR;
}
//
// Work out and validate the adapter type being searched for.
//
adapterNumber = (index - 1000) / 100;
if (adapterNumber < 0 ||
adapterNumber >= sizeof(Adapters) / sizeof(ADAPTER_INFO) ||
(index % 100) != 0)
{
return ERROR_INVALID_PARAMETER;
}
//
// Type to find an adapter.
//
retCode = FindPciCard(
(ULONG) adapterNumber,
busNumber,
interface,
(BOOLEAN) first,
(ULONG) index,
confidence
);
if (retCode == NO_ERROR)
{
//
// In this module I use the token as follows: Remember that
// the token can only be 2 bytes long (the low 2) because of
// the interface to the upper part of this DLL.
//
// The rest of the high byte is the the bus number.
// The low byte is the driver index number into Adapters.
//
// NOTE: This presumes that there are < 129 buses in the
// system. Is this reasonable?
//
*token = (VOID *) ((busNumber & 0x7F) << 8);
*token = (VOID *) (((ULONG) *token) | adapterNumber);
}
return retCode;
}
/****************************************************************************
*
* Function - MadgePciOpenHandleHandler
*
* Parameters - token -> Pointer to holder for a token that identifies
* an adapter found by FirstNextHandler.
* handle -> Pointer to a holder a handle the caller
* should use to query the adapter refered to
* by *token.
*
* Purpose - Generates a handle for an adapter just found by a call
* to FirstNextHandler.
*
* Returns - A WINERROR.H error code.
*
****************************************************************************/
LONG
MadgePciOpenHandleHandler(
VOID * token,
VOID * * handle
)
{
PCI_ADAPTER * adapter;
ULONG adapterNumber;
ULONG busNumber;
INTERFACE_TYPE interface;
MadgePrint1("MadgePciOpenHandleHandler\n");
//
// Get info from the token.
//
interface = PCIBus;
busNumber = (ULONG) (((ULONG) token >> 8) & 0x7F);
adapterNumber = ((ULONG) token) & 0xFF;
//
// Allocate a structure for the details of the adapter.
//
adapter = (PCI_ADAPTER *) DetectAllocateHeap(sizeof(PCI_ADAPTER));
if (adapter == NULL)
{
return ERROR_NOT_ENOUGH_MEMORY;
}
//
// Copy the details.
//
adapter->Found = TRUE;
adapter->SlotNumber = SearchStates[adapterNumber].SlotNumber;
adapter->CardType = Adapters[adapterNumber].Index;
adapter->InterfaceType = interface;
adapter->BusNumber = busNumber;
adapter->Dma = ParamRange[adapterNumber].DmaRange[0];
*handle = (VOID *) adapter;
return NO_ERROR;
}
/****************************************************************************
*
* Function - MadgePciCreateHandleHandler
*
* Parameters - index -> Index of the adapter type. 1000 for the first
* type, 1100 for the second, 1200 for the third
* etc.
* interface -> NT interface type (Eisa, Isa etc).
* busNumber -> Number of the bus containing the adapter.
* handle -> Pointer to a holder a handle the caller
* should use to query the adapter.
*
* Purpose - Generates a handle for an adapter that has not been detected
* but the caller claims exists.
*
* Returns - A WINERROR.H error code.
*
****************************************************************************/
LONG
MadgePciCreateHandleHandler(
LONG index,
INTERFACE_TYPE interface,
ULONG busNumber,
VOID * * handle
)
{
PCI_ADAPTER * adapter;
LONG numberOfAdapters;
LONG i;
MadgePrint2("MadgePciCreateHandleHandler (index = %ld)\n", index);
//
// Check that the interface type is correct for this module.
//
if (interface != PCIBus)
{
return ERROR_INVALID_PARAMETER;
}
//
// If the index is valid then create a handle.
//
numberOfAdapters = sizeof(Adapters) / sizeof(ADAPTER_INFO);
for (i = 0; i < numberOfAdapters; i++)
{
if (Adapters[i].Index == index)
{
//
// Allocate a structure for the adapter details.
//
adapter = (PCI_ADAPTER *) DetectAllocateHeap(sizeof(PCI_ADAPTER));
if (adapter == NULL)
{
return ERROR_NOT_ENOUGH_MEMORY;
}
//
// Copy the details.
//
adapter->Found = FALSE;
adapter->SlotNumber = 1;
adapter->CardType = index;
adapter->InterfaceType = interface;
adapter->BusNumber = busNumber;
adapter->Dma = ParamRange[i].DmaRange[0];
*handle = (VOID *) adapter;
return NO_ERROR;
}
}
//
// We didn't find an adapter type that matched the one the caller
// claims exists so return an error.
//
return ERROR_INVALID_PARAMETER;
}
/****************************************************************************
*
* Function - MadgePciCloseHandleHandler
*
* Parameters - handle -> Handle to be closed.
*
* Purpose - Closes a previously opened or created handle.
*
* Returns - A WINERROR.H error code.
*
****************************************************************************/
LONG
MadgePciCloseHandleHandler(
VOID * handle
)
{
MadgePrint1("MadgePciCloseHandleHandler\n");
DetectFreeHeap(handle);
return NO_ERROR;
}
/****************************************************************************
*
* Function - MadgePciQueryCfgHandler
*
* Parameters - handle -> Handle to for the adapter to be queried.
* buffer -> Buffer for the returned parameters.
* bufferSize -> Size of the buffer in WCHARs.
*
* Purpose - Find out what the parameters are for the adapter identified
* by the handle. This function does not assume that the
* adapter described by the handle is valid. This is because
* the handle could have been created rather than opened.
* The function validates the handle and if the handle does
* not identify a physical adapter then we attempt to
* find an adapter that matches the handle.
*
* Returns - A WINERROR.H error code.
*
****************************************************************************/
LONG
MadgePciQueryCfgHandler(
VOID * handle,
WCHAR * buffer,
LONG bufferSize
)
{
PCI_ADAPTER * adapter;
VOID * busHandle;
ULONG confidence;
BOOLEAN found;
LONG adapterNumber;
LONG retCode;
//
// Do some initialisation.
//
adapter = (PCI_ADAPTER *) handle;
//
// Check that the interface type specified by the handle is
// valid for this module.
//
if (adapter->InterfaceType != PCIBus)
{
return ERROR_INVALID_PARAMETER;
}
//
// If the adapter was created rather than being opened we must search
// for an adapter.
//
if (!adapter->Found)
{
adapterNumber = (adapter->CardType - 1000) / 100;
retCode = FindPciCard(
adapterNumber,
adapter->BusNumber,
adapter->InterfaceType,
TRUE,
adapter->CardType,
&confidence
);
//
// If we are not 100% sure that we found an adapter with
// the right ID we give up.
//
if (retCode != NO_ERROR || confidence != 100)
{
return ERROR_INVALID_PARAMETER;
}
adapter->Found = TRUE;
adapter->SlotNumber = SearchStates[adapterNumber].SlotNumber;
}
//
// Build resulting buffer.
//
// Copy in the slot number title and value.
//
if (AppendParameter(
&buffer,
&bufferSize,
SlotNumberString,
adapter->SlotNumber
) != NO_ERROR)
{
return ERROR_INSUFFICIENT_BUFFER;
}
//
// Copy in the DMA channel title and value.
//
if (AppendParameter(
&buffer,
&bufferSize,
DmaChanString,
adapter->Dma
) != NO_ERROR)
{
return ERROR_INSUFFICIENT_BUFFER;
}
//
// Copy in the multiprocessor flag.
//
if (AppendParameter(
&buffer,
&bufferSize,
MultiprocessorString,
IsMultiprocessor()
) != NO_ERROR)
{
return ERROR_INSUFFICIENT_BUFFER;
}
//
// Copy in final \0.
//
if (bufferSize < 1)
{
return ERROR_INSUFFICIENT_BUFFER;
}
*buffer = L'\0';
return NO_ERROR;
}
/****************************************************************************
*
* Function - MadgePciVerifyCfgHandler
*
* Parameters - handle -> Handle to for the adapter to be verified.
* buffer -> Buffer containing the returned parameters.
*
* Purpose - Verify that the parameters in buffer are correct for
* the adapter identified by handle.
*
* Returns - A WINERROR.H error code.
*
****************************************************************************/
LONG
MadgePciVerifyCfgHandler(
VOID * handle,
WCHAR * buffer
)
{
PCI_ADAPTER * adapter;
WCHAR * place;
ULONG compressedId;
ULONG slotNumber;
ULONG dmaChannel;
ULONG multiprocessor;
VOID * busHandle;
BOOLEAN found;
LONG adapterNumber;
MadgePrint1("MadgePciVerifyCfgHandler\n");
//
// Do some initialisation.
//
adapter = (PCI_ADAPTER *) handle;
adapterNumber = (adapter->CardType - 1000) / 100;
//
// Check that the interface type is correct for this module.
//
if (adapter->InterfaceType != PCIBus)
{
return ERROR_INVALID_DATA;
}
//
// Parse the parameters.
//
// Get the slot number.
//
place = FindParameterString(buffer, SlotNumberString);
if (place == NULL)
{
return ERROR_INVALID_DATA;
}
place += UnicodeStrLen(SlotNumberString) + 1;
//
// Now parse the slot number.
//
ScanForNumber(place, &slotNumber, &found);
if (!found)
{
return ERROR_INVALID_DATA;
}
//
// Get the DMA channel.
//
place = FindParameterString(buffer, DmaChanString);
if (place == NULL)
{
return ERROR_INVALID_DATA;
}
place += UnicodeStrLen(DmaChanString) + 1;
ScanForNumber(place, &dmaChannel, &found);
if (!found)
{
return ERROR_INVALID_DATA;
}
//
// Get the multiprocessor flag.
//
place = FindParameterString(buffer, MultiprocessorString);
if (place == NULL)
{
return ERROR_INVALID_DATA;
}
place += UnicodeStrLen(MultiprocessorString) + 1;
//
// Now parse the value.
//
ScanForNumber(place, &multiprocessor, &found);
//
// If the adapter was created rather than being opened we must check
// the PCI configuration to make sure the slot contains a
// Madge adapter.
//
if (!adapter->Found)
{
if (CheckForCard(
adapter->BusNumber,
adapter->InterfaceType,
slotNumber
) != adapter->CardType)
{
return ERROR_INVALID_DATA;
}
adapter->Found = TRUE;
adapter->SlotNumber = slotNumber;
}
//
// Verify the parameter.
//
if (slotNumber != adapter->SlotNumber ||
multiprocessor != IsMultiprocessor())
{
return ERROR_INVALID_DATA;
}
if (adapter->Dma == RESOURCE_UNKNOWN)
{
if (!IsValueInList(dmaChannel, ParamRange[adapterNumber].DmaRange))
{
return ERROR_INVALID_DATA;
}
}
else if (adapter->Dma != dmaChannel)
{
return ERROR_INVALID_DATA;
}
//
// If we make it to here everything checked out ok.
//
return NO_ERROR;
}
/****************************************************************************
*
* Function - MadgePciQueryMaskHandler
*
* Parameters - index -> Index of the adapter type. 1000 for the first
* type, 1100 for the second, 1200 for the third
* etc.
* buffer -> Buffer for the returned parameters.
* bufferSize -> Size of buffer in WCHARs.
*
* Purpose - Return the list of parameters required for the adapter
* type specified by index.
*
* Returns - A WINERROR.H error code.
*
****************************************************************************/
LONG
MadgePciQueryMaskHandler(
LONG index,
WCHAR * buffer,
LONG bufferSize
)
{
WCHAR * params;
LONG length;
LONG numberOfAdapters;
LONG i;
MadgePrint1("MadgePciQueryMaskHandler\n");
//
// Find the adapter type.
//
numberOfAdapters = sizeof(Adapters) / sizeof(ADAPTER_INFO);
for (i = 0; i < numberOfAdapters; i++)
{
if (Adapters[i].Index == index)
{
params = Adapters[i].Parameters;
//
// Find the string length (Ends with 2 NULLs)
//
for (length = 0; ; length++)
{
if (params[length] == L'\0')
{
length++;
if (params[length] == L'\0')
{
break;
}
}
}
length++;
//
// Copy the parameters into buffer.
//
if (bufferSize < length)
{
return ERROR_NOT_ENOUGH_MEMORY;
}
memcpy((VOID *) buffer, params, length * sizeof(WCHAR));
return NO_ERROR;
}
}
//
// If we make it here we did not find a valid adapter type so
// return and error.
//
return ERROR_INVALID_PARAMETER;
}
/****************************************************************************
*
* Function - MadgePciParamRangeHandler
*
* Parameters - index -> Index of the adapter type. 1000 for the first
* type, 1100 for the second, 1200 for the third
* etc.
* param -> Paramter being queried.
* buffer -> Buffer for the returned parameters.
* bufferSize -> Size of buffer in LONGs.
*
* Purpose - Return the list of acceptable values for the parameter
* specified.
*
* Returns - A WINERROR.H error code.
*
****************************************************************************/
LONG
MadgePciParamRangeHandler(
LONG index,
WCHAR * param,
LONG * buffer,
LONG * bufferSize
)
{
LONG adapterNumber;
LONG count;
LONG i;
//
// Work out and validate the adapter number.
//
adapterNumber = (index - 1000) / 100;
if (adapterNumber < 0 ||
adapterNumber >= sizeof(Adapters) / sizeof(ADAPTER_INFO) ||
(index % 100) != 0)
{
return ERROR_INVALID_PARAMETER;
}
//
// Fill in the allowable slot numbers in the buffer.
//
if (UnicodeStringsEqual(param, SlotNumberString))
{
count = 0;
while (ParamRange[adapterNumber].SlotNumber[count] != END_OF_LIST)
{
count++;
}
if (*bufferSize < count)
{
return ERROR_INSUFFICIENT_BUFFER;
}
for (i = 0; i < count; i++)
{
buffer[i] = ParamRange[adapterNumber].SlotNumber[i];
}
*bufferSize = count;
return NO_ERROR;
}
//
// Or the valid DMA channels.
//
else if (UnicodeStringsEqual(param, DmaChanString))
{
count = 0;
while (ParamRange[adapterNumber].DmaRange[count] != END_OF_LIST)
{
count++;
}
if (*bufferSize < count)
{
return ERROR_INSUFFICIENT_BUFFER;
}
for (i = 0; i < count; i++)
{
buffer[i] = ParamRange[adapterNumber].DmaRange[i];
}
*bufferSize = count;
return NO_ERROR;
}
//
// Or fill in the allowable values for the multiprocessor flag.
//
else if (UnicodeStringsEqual(param, MultiprocessorString))
{
if (*bufferSize < 2)
{
return ERROR_INSUFFICIENT_BUFFER;
}
*bufferSize = 2;
buffer[0] = 0;
buffer[1] = 1;
return NO_ERROR;
}
//
// If we reach this point we have been passed a parameter we
// don't know about.
//
return ERROR_INVALID_DATA;
}
/****************************************************************************
*
* Function - MadgePciQueryParameterNameHandler
*
* Parameters - param -> Paramter being queried.
* buffer -> Buffer for the returned name.
* bufferSize -> Size of buffer in WCHARs.
*
* Purpose - Return the name of a parameter.
*
* Returns - ERROR_INVALID_PARAMETER to cause the caller to use
* the Microsoft provided default names.
*
****************************************************************************/
LONG
MadgePciQueryParameterNameHandler(
WCHAR * param,
WCHAR * buffer,
LONG bufferSize
)
{
return ERROR_INVALID_PARAMETER;
}
/********* End of MDGPCI.C *************************************************/