wmi.c File Reference

#include "miniport.h"
#include "BusLogic958.h"
#include "wmistr.h"
#include "BT958dt.h"

Include dependency graph for wmi.c:

Go to the source code of this file.

Macros
#define	BT958Wmi_MofResourceName   L"MofResource"
#define	BT958_SETUP_GUID_INDEX   0
#define	BT958GuidCount   (sizeof(BT958GuidList) / sizeof(SCSIWMIGUIDREGINFO))

Functions
UCHAR	BT958ReadExtendedSetupInfo (IN PHW_DEVICE_EXTENSION HwDeviceExtension, OUT PUCHAR Buffer)
BOOLEAN	BT958QueryWmiDataBlock (IN PVOID Context, IN PSCSIWMI_REQUEST_CONTEXT RequestContext, IN ULONG GuidIndex, IN ULONG InstanceIndex, IN ULONG InstanceCount, IN OUT PULONG InstanceLengthArray, IN ULONG OutBufferSize, OUT PUCHAR Buffer)
UCHAR	BT958QueryWmiRegInfo (IN PVOID Context, IN PSCSIWMI_REQUEST_CONTEXT RequestContext, OUT PWCHAR *MofResourceName)
void	BT958WmiInitialize (IN PHW_DEVICE_EXTENSION HwDeviceExtension)
BOOLEAN	BT958WmiSrb (IN PHW_DEVICE_EXTENSION HwDeviceExtension, IN OUT PSCSI_WMI_REQUEST_BLOCK Srb)

Variables
GUID	BT958WmiExtendedSetupInfoGuid = BT958Wmi_ExtendedSetupInfo_Guid
SCSIWMIGUIDREGINFO	BT958GuidList []

Macro Definition Documentation

BT958_SETUP_GUID_INDEX

#define BT958_SETUP_GUID_INDEX   0

Definition at line 9 of file wmi.c.

BT958GuidCount

#define BT958GuidCount   (sizeof(BT958GuidList) / sizeof(SCSIWMIGUIDREGINFO))

Definition at line 49 of file wmi.c.

BT958Wmi_MofResourceName

#define BT958Wmi_MofResourceName   L"MofResource"

Definition at line 7 of file wmi.c.

Function Documentation

BT958QueryWmiDataBlock()

BOOLEAN BT958QueryWmiDataBlock	(	IN PVOID	Context,
		IN PSCSIWMI_REQUEST_CONTEXT	RequestContext,
		IN ULONG	GuidIndex,
		IN ULONG	InstanceIndex,
		IN ULONG	InstanceCount,
		IN OUT PULONG	InstanceLengthArray,
		IN ULONG	OutBufferSize,
		OUT PUCHAR	Buffer
	)

Definition at line 163 of file wmi.c.

{
    PHW_DEVICE_EXTENSION HwDeviceExtension = (PHW_DEVICE_EXTENSION)Context;
    ULONG size = 0;
    UCHAR status;
 
    //
    // Only ever registers 1 instance per guid
    ASSERT((InstanceIndex == 0) &&
           (InstanceCount == 1));
 
    switch (GuidIndex)
    {
        case BT958_SETUP_GUID_INDEX:
        {
            size = sizeof(BT958ExtendedSetupInfo)-1;
            if (OutBufferSize < size)
            {
                //
                // The buffer passed to return the data is too small
                //
                status = SRB_STATUS_DATA_OVERRUN;
                break;
            }
 
            if ( !BT958ReadExtendedSetupInfo(HwDeviceExtension,
                                     Buffer))
            {
                ASSERT(FALSE);
                size = 0;
                status = SRB_STATUS_ERROR;
            }
            else
            {
                *InstanceLengthArray = size;
                status = SRB_STATUS_SUCCESS;
            }
            break;
        }
 
        default:
        {
            status = SRB_STATUS_ERROR;
        }
    }
 
    ScsiPortWmiPostProcess(       RequestContext,
                                  status,
                                  size);
 
    return status;
}

Referenced by BT958WmiInitialize().

BT958QueryWmiRegInfo()

UCHAR BT958QueryWmiRegInfo	(	IN PVOID	Context,
		IN PSCSIWMI_REQUEST_CONTEXT	RequestContext,
		OUT PWCHAR *	MofResourceName
	)

Definition at line 286 of file wmi.c.

{
    *MofResourceName = BT958Wmi_MofResourceName;
    return SRB_STATUS_SUCCESS;
}

Referenced by BT958WmiInitialize().

BT958ReadExtendedSetupInfo()

UCHAR BT958ReadExtendedSetupInfo	(	IN PHW_DEVICE_EXTENSION	HwDeviceExtension,
		OUT PUCHAR	Buffer
	)

Definition at line 342 of file wmi.c.

{
   UCHAR numberOfBytes = sizeof(BT958ExtendedSetupInfo)-1;
 
   PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
   BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
   BusLogic_ExtendedSetupInformation_T ExtendedSetupInformation;
   BusLogic_RequestedReplyLength_T RequestedReplyLength = sizeof(ExtendedSetupInformation);
   BOOLEAN Result = TRUE;
 
   BusLogic_WmiExtendedSetupInformation_T WmiExtendedSetupInfo;
   PUCHAR SourceBuf = (PUCHAR) &WmiExtendedSetupInfo;
 
 
   //
   //  Issue the Inquire Extended Setup Information command.  Only genuine
   //  BusLogic Host Adapters and TRUE clones support this command.  Adaptec 1542C
   //  series Host Adapters that respond to the Geometry Register I/O port will
   //  fail this command.
   RequestedReplyLength = sizeof(ExtendedSetupInformation);
   if (BusLogic_Command(HostAdapter,
                       BusLogic_InquireExtendedSetupInformation,
                       &RequestedReplyLength,
                       sizeof(RequestedReplyLength),
                       &ExtendedSetupInformation,
                       sizeof(ExtendedSetupInformation))
      != sizeof(ExtendedSetupInformation))
   {
     Result = FALSE;
   }
 
   WmiExtendedSetupInfo.BusType      =        ExtendedSetupInformation.BusType;
   WmiExtendedSetupInfo.BIOS_Address =        ExtendedSetupInformation.BIOS_Address;
   WmiExtendedSetupInfo.ScatterGatherLimit =  ExtendedSetupInformation.ScatterGatherLimit;
   WmiExtendedSetupInfo.MailboxCount       =  ExtendedSetupInformation.MailboxCount;
   WmiExtendedSetupInfo.BaseMailboxAddress =  ExtendedSetupInformation.BaseMailboxAddress;
   WmiExtendedSetupInfo.FastOnEISA         =  ExtendedSetupInformation.Misc.FastOnEISA;
   WmiExtendedSetupInfo.LevelSensitiveInterrupt = ExtendedSetupInformation.Misc.LevelSensitiveInterrupt;
   WmiExtendedSetupInfo.FirmwareRevision[0] = ExtendedSetupInformation.FirmwareRevision[0];
   WmiExtendedSetupInfo.FirmwareRevision[1] = ExtendedSetupInformation.FirmwareRevision[1];
   WmiExtendedSetupInfo.FirmwareRevision[2] = ExtendedSetupInformation.FirmwareRevision[2];
   WmiExtendedSetupInfo.HostWideSCSI        = ExtendedSetupInformation.HostWideSCSI;
   WmiExtendedSetupInfo.HostDifferentialSCSI= ExtendedSetupInformation.HostDifferentialSCSI;
   WmiExtendedSetupInfo.HostSupportsSCAM    = ExtendedSetupInformation.HostSupportsSCAM;
   WmiExtendedSetupInfo.HostUltraSCSI       = ExtendedSetupInformation.HostUltraSCSI;
   WmiExtendedSetupInfo.HostSmartTermination= ExtendedSetupInformation.HostSmartTermination;
 
   for (; numberOfBytes; numberOfBytes--)
   {
      *Buffer++ = *SourceBuf++;
   }
   return TRUE;
}

Referenced by BT958QueryWmiDataBlock().

BT958WmiInitialize()

void BT958WmiInitialize

(

IN PHW_DEVICE_EXTENSION

HwDeviceExtension

)

Definition at line 52 of file wmi.c.

{
    PSCSI_WMILIB_CONTEXT WmiLibContext;
 
    WmiLibContext = &HwDeviceExtension->WmiLibContext;
 
    WmiLibContext->GuidList = BT958GuidList;
    WmiLibContext->GuidCount = BT958GuidCount;
    WmiLibContext->QueryWmiRegInfo = BT958QueryWmiRegInfo;
    WmiLibContext->QueryWmiDataBlock = BT958QueryWmiDataBlock;
    WmiLibContext->SetWmiDataItem = NULL;
    WmiLibContext->SetWmiDataBlock = NULL;
    WmiLibContext->WmiFunctionControl = NULL;
    WmiLibContext->ExecuteWmiMethod = NULL;
}

BT958WmiSrb()

BOOLEAN BT958WmiSrb	(	IN PHW_DEVICE_EXTENSION	HwDeviceExtension,
		IN OUT PSCSI_WMI_REQUEST_BLOCK	Srb
	)

Definition at line 73 of file wmi.c.

{
   UCHAR status;
   SCSIWMI_REQUEST_CONTEXT requestContext;
   ULONG retSize;
   BOOLEAN pending;
 
   // Validate our assumptions.
   ASSERT(Srb->Function == SRB_FUNCTION_WMI);
   ASSERT(Srb->Length == sizeof(SCSI_WMI_REQUEST_BLOCK));
   ASSERT(Srb->DataTransferLength >= sizeof(ULONG));
   ASSERT(Srb->DataBuffer);
 
   // Check if the WMI SRB is targeted for the adapter or one of the disks
   if (!(Srb->WMIFlags & SRB_WMI_FLAGS_ADAPTER_REQUEST))
   {
 
      // This is targeted to one of the disks, since there are no per disk
      // wmi information we return an error. Note that if there was per
      // disk information, then you'd likely have a differen WmiLibContext
      // and a different set of guids.
      Srb->DataTransferLength = 0;
      Srb->SrbStatus = SRB_STATUS_SUCCESS;
 
   }
   else
   {
       // Process the incoming WMI request.
       pending = ScsiPortWmiDispatchFunction(&HwDeviceExtension->WmiLibContext,
                                                Srb->WMISubFunction,
                                                HwDeviceExtension,
                                                &requestContext,
                                                Srb->DataPath,
                                                Srb->DataTransferLength,
                                                Srb->DataBuffer);
 
       // We assume that the wmi request will never pend so that we can
       // allocate the requestContext from stack. If the WMI request could
       // ever pend then we'd need to allocate the request context from
       // the SRB extension.
       //
       ASSERT(! pending);
 
       retSize =  ScsiPortWmiGetReturnSize(&requestContext);
       status =  ScsiPortWmiGetReturnStatus(&requestContext);
 
       // We can do this since we assume it is done synchronously
       Srb->DataTransferLength = retSize;
 
       //
       // Adapter ready for next request.
       //
 
       Srb->SrbStatus = status;
   }
 
   ScsiPortNotification(RequestComplete, HwDeviceExtension, Srb);
   ScsiPortNotification(NextRequest,     HwDeviceExtension, NULL);
 
   return TRUE;
}

Variable Documentation

BT958GuidList

SCSIWMIGUIDREGINFO BT958GuidList[]

Initial value:

=
{
   {&BT958WmiExtendedSetupInfoGuid,
    1,
    0
   },
}

Definition at line 41 of file wmi.c.

Referenced by BT958WmiInitialize().

BT958WmiExtendedSetupInfoGuid

GUID BT958WmiExtendedSetupInfoGuid = BT958Wmi_ExtendedSetupInfo_Guid

Definition at line 11 of file wmi.c.