/**************************************************************************** * * 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 #include #include #include #include #include #include #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 *************************************************/