summaryrefslogtreecommitdiffstats
path: root/private/ntos/ndis/madge/detect/mdgeisa.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--private/ntos/ndis/madge/detect/mdgeisa.c1288
1 files changed, 1288 insertions, 0 deletions
diff --git a/private/ntos/ndis/madge/detect/mdgeisa.c b/private/ntos/ndis/madge/detect/mdgeisa.c
new file mode 100644
index 000000000..a832e2728
--- /dev/null
+++ b/private/ntos/ndis/madge/detect/mdgeisa.c
@@ -0,0 +1,1288 @@
+/****************************************************************************
+*
+* MDGEISA.C
+*
+* EISA 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 16/08/1994
+*
+****************************************************************************/
+
+#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, ...);
+
+
+/*---------------------------------------------------------------------------
+|
+| EISA 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_EISA 1000
+
+
+/*---------------------------------------------------------------------------
+|
+| EISA Compressed ID.
+|
+| NT only seems to use the bottom 3 bytes of an EISA compressed ID.
+| This has mixed blessings. The advantage is that all of our EISA
+| adapters appear with the same compressed ID.
+|
+|--------------------------------------------------------------------------*/
+
+#define MADGE_COMPRESSED_ID 0x00008734L
+
+
+/*---------------------------------------------------------------------------
+|
+| List of adapter types supported by this module.
+|
+|---------------------------------------------------------------------------*/
+
+static
+ADAPTER_INFO Adapters[] =
+{
+ {
+ SMART_EISA,
+ MDGEISA,
+ L"Madge 16/4 Eisa Ringnode/Bridgnode",
+ 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[16];
+ ULONG DmaRange[2];
+}
+ParamRange[] =
+{
+ //
+ // Smart 16/4 EISA.
+ //
+
+ {
+ { 1, 2, 3, 4, 5, 6, 7, 8,
+ 9, 10, 11, 12, 13, 14, 15, END_OF_LIST},
+
+ {GENERAL_DMA, END_OF_LIST}
+ }
+};
+
+
+/*---------------------------------------------------------------------------
+|
+| Structure for holding state of a search.
+|
+|--------------------------------------------------------------------------*/
+
+typedef struct
+{
+ ULONG SlotNumber;
+}
+EISA_SEARCH_STATE;
+
+
+/*---------------------------------------------------------------------------
+|
+| This is an array of search states. We need one state for each type
+| of adapter supported.
+|
+|--------------------------------------------------------------------------*/
+
+static
+EISA_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;
+}
+EISA_ADAPTER;
+
+
+/*---------------------------------------------------------------------------
+|
+| Function - CompIdToCardType
+|
+| Parameters - compId -> A compressed EISA Id.
+|
+| Purpose - Translate a compressed EISA Id into a card type.
+|
+| Returns - A Madge card type of SMART_NONE if the compressed Id
+| is not recognised.
+|
+---------------------------------------------------------------------------*/
+
+static ULONG
+CompIdToCardType(
+ ULONG compId
+ )
+{
+ if (compId == MADGE_COMPRESSED_ID)
+ {
+ return SMART_EISA;
+ }
+
+ return SMART_NONE;
+}
+
+
+/*---------------------------------------------------------------------------
+|
+| Function - FindEisaCard
+|
+| Parameters - adapterNumber -> Adapter type index used to index the
+| global array SearchStates.
+| busNumber -> The bus number to search.
+| first -> TRUE if this is the first call for
+| a given adapter type.
+| type -> The type of adapter being searched for.
+| confidence -> Pointer a holder for the confidence in
+| which the adapter was found.
+|
+| Purpose - Search the specified EISA bus for an adapter with the
+| specified compressed ID. If first is TRUE then the search
+| starts from slot number 1. If first is FALSE then the
+| search starts from one after the last slot checked the
+| previous time FindEisaCard was called.
+|
+| Returns - A WINERROR.H error code.
+|
+|--------------------------------------------------------------------------*/
+
+static ULONG
+FindEisaCard(
+ ULONG adapterNumber,
+ ULONG busNumber,
+ BOOLEAN first,
+ ULONG type,
+ ULONG * confidence
+ )
+{
+ VOID * busHandle;
+ ULONG compressedId;
+
+ //
+ // If this is the first call then we want to start from slot
+ // number 1.
+ //
+
+ if (first)
+ {
+ SearchStates[adapterNumber].SlotNumber = 1;
+ }
+
+ //
+ // Otherwise we want to start from 1 after were we left off
+ // last time.
+ //
+
+ else
+ {
+ SearchStates[adapterNumber].SlotNumber++;
+ }
+
+ //
+ // Get a handle onto NT's information for the EISA bus with the
+ // number busNumber.
+ //
+
+ if (!GetEisaKey(busNumber, &busHandle))
+ {
+ return ERROR_INVALID_PARAMETER;
+ }
+
+ //
+ // Step through the slots in the bus looking for one with our
+ // compressed ID for which there isn't already a Madge card installed.
+ // If we don't find one we will return a confidence level of zero.
+ //
+
+ *confidence = 0;
+
+ while (GetEisaCompressedId(
+ busHandle,
+ SearchStates[adapterNumber].SlotNumber,
+ &compressedId
+ ))
+ {
+ if (CompIdToCardType(compressedId) == type)
+ {
+ if (!MadgeCardAlreadyInstalled(
+ TRUE,
+ busNumber,
+ SearchStates[adapterNumber].SlotNumber
+ ))
+ {
+ *confidence = 100;
+ break;
+ }
+ }
+
+ SearchStates[adapterNumber].SlotNumber++;
+ }
+
+ DeleteEisaKey(busHandle);
+
+ return NO_ERROR;
+}
+
+
+/****************************************************************************
+*
+* Function - MadgeEisaIdentifyHandler
+*
+* 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
+MadgeEisaIdentifyHandler(
+ LONG index,
+ WCHAR * buffer,
+ LONG bufferSize
+ )
+{
+ LONG numberOfAdapters;
+ LONG action;
+ LONG length;
+ LONG i;
+
+ MadgePrint2("MadgeEisaIdentifyHandler (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 - MadgeEisaFirstNextHandler
+*
+* 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
+MadgeEisaFirstNextHandler(
+ LONG index,
+ INTERFACE_TYPE interface,
+ ULONG busNumber,
+ BOOL first,
+ VOID * * token,
+ LONG * confidence
+ )
+{
+ ULONG retCode;
+ LONG adapterNumber;
+
+ MadgePrint2("MadgeEisaFirstNextHandler (index = %ld)\n", index);
+
+ //
+ // Check the interface type.
+ //
+
+ if (interface != Eisa)
+ {
+ *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 = FindEisaCard(
+ (ULONG) adapterNumber,
+ busNumber,
+ (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 - MadgeEisaOpenHandleHandler
+*
+* 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
+MadgeEisaOpenHandleHandler(
+ VOID * token,
+ VOID * * handle
+ )
+{
+ EISA_ADAPTER * adapter;
+ ULONG adapterNumber;
+ ULONG busNumber;
+ INTERFACE_TYPE interface;
+
+ MadgePrint1("MadgeEisaOpenHandleHandler\n");
+
+ //
+ // Get info from the token.
+ //
+
+ interface = Eisa;
+ busNumber = (ULONG) (((ULONG) token >> 8) & 0x7F);
+ adapterNumber = ((ULONG) token) & 0xFF;
+
+ //
+ // Allocate a structure for the details of the adapter.
+ //
+
+ adapter = (EISA_ADAPTER *) DetectAllocateHeap(sizeof(EISA_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 = GENERAL_DMA; // EISA is always DMA.
+
+ *handle = (VOID *) adapter;
+
+ return NO_ERROR;
+}
+
+
+/****************************************************************************
+*
+* Function - MadgeEisaCreateHandleHandler
+*
+* 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
+MadgeEisaCreateHandleHandler(
+ LONG index,
+ INTERFACE_TYPE interface,
+ ULONG busNumber,
+ VOID * * handle
+ )
+{
+ EISA_ADAPTER * adapter;
+ LONG numberOfAdapters;
+ LONG i;
+
+ MadgePrint2("MadgeEisaCreateHandleHandler (index = %ld)\n", index);
+
+ //
+ // Check that the interface type is correct for this module.
+ //
+
+ if (interface != Eisa)
+ {
+ 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 = (EISA_ADAPTER *) DetectAllocateHeap(
+ sizeof(EISA_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 = GENERAL_DMA; // EISA is always DMA.
+
+ *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 - MadgeEisaCloseHandleHandler
+*
+* Parameters - handle -> Handle to be closed.
+*
+* Purpose - Closes a previously opened or created handle.
+*
+* Returns - A WINERROR.H error code.
+*
+****************************************************************************/
+
+LONG
+MadgeEisaCloseHandleHandler(
+ VOID * handle
+ )
+{
+ MadgePrint1("MadgeEisaCloseHandleHandler\n");
+
+ DetectFreeHeap(handle);
+
+ return NO_ERROR;
+}
+
+
+/****************************************************************************
+*
+* Function - MadgeEisaQueryCfgHandler
+*
+* 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
+MadgeEisaQueryCfgHandler(
+ VOID * handle,
+ WCHAR * buffer,
+ LONG bufferSize
+ )
+{
+ EISA_ADAPTER * adapter;
+ VOID * busHandle;
+ ULONG confidence;
+ BOOLEAN found;
+ LONG adapterNumber;
+ LONG retCode;
+
+ //
+ // Do some initialisation.
+ //
+
+ adapter = (EISA_ADAPTER *) handle;
+
+ //
+ // Check that the interface type specified by the handle is
+ // valid for this module.
+ //
+
+ if (adapter->InterfaceType != Eisa)
+ {
+ 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 = FindEisaCard(
+ adapterNumber,
+ adapter->BusNumber,
+ 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 - MadgeEisaVerifyCfgHandler
+*
+* 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
+MadgeEisaVerifyCfgHandler(
+ VOID * handle,
+ WCHAR * buffer
+ )
+{
+ EISA_ADAPTER * adapter;
+ WCHAR * place;
+ ULONG compressedId;
+ ULONG slotNumber;
+ ULONG dmaChannel;
+ ULONG multiprocessor;
+ VOID * busHandle;
+ BOOLEAN found;
+ LONG adapterNumber;
+
+ MadgePrint1("MadgeEisaVerifyCfgHandler\n");
+
+ //
+ // Do some initialisation.
+ //
+
+ adapter = (EISA_ADAPTER *) handle;
+ adapterNumber = (adapter->CardType - 1000) / 100;
+
+ //
+ // Check that the interface type is correct for this module.
+ //
+
+ if (adapter->InterfaceType != Eisa)
+ {
+ 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 EISA configuration table to make sure the slot contains a
+ // Madge adapter.
+ //
+
+ if (!adapter->Found)
+ {
+ if (!GetEisaKey(adapter->BusNumber, &busHandle))
+ {
+ return ERROR_INVALID_DATA;
+ }
+
+ found = GetEisaCompressedId(
+ busHandle,
+ slotNumber,
+ &compressedId
+ );
+
+ DeleteEisaKey(busHandle);
+
+ if (!found || CompIdToCardType(compressedId) != 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 - MadgeEisaQueryMaskHandler
+*
+* 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
+MadgeEisaQueryMaskHandler(
+ LONG index,
+ WCHAR * buffer,
+ LONG bufferSize
+ )
+{
+ WCHAR * params;
+ LONG length;
+ LONG numberOfAdapters;
+ LONG i;
+
+ MadgePrint1("MadgeEisaQueryMaskHandler\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 - MadgeEisaParamRangeHandler
+*
+* 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
+MadgeEisaParamRangeHandler(
+ 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 - MadgeEisaQueryParameterNameHandler
+*
+* 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
+MadgeEisaQueryParameterNameHandler(
+ WCHAR * param,
+ WCHAR * buffer,
+ LONG bufferSize
+ )
+{
+ return ERROR_INVALID_PARAMETER;
+}
+
+
+/********* End of MDGEISA.C ************************************************/
+