sonydcam.h

a sample WDM stream class video capture driver that supports two IEEE 1394 digital cameras. The sam

//===========================================================================
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
// Copyright (c) 1996 - 1998  Microsoft Corporation.  All Rights Reserved.
//
//===========================================================================
/*++

Module Name:

    sonydcam.h

Abstract:

    Header file for sonydcam.c 

Author:
    
    Shaun Pierce 25-May-96

Environment:

    Kernel mode only

Revision History:


--*/



//
// Function prototypes
//

NTSTATUS
DriverEntry(
    IN PVOID Context1,
    IN PVOID Context2
    );

VOID 
InitializeDeviceExtension(
    PPORT_CONFIGURATION_INFORMATION ConfigInfo
    );

NTSTATUS
DCamHwUnInitialize(
    IN PHW_STREAM_REQUEST_BLOCK pSrb
    );

NTSTATUS
DCamHwInitialize(
    IN PHW_STREAM_REQUEST_BLOCK pSrb
    );

NTSTATUS
DCamSubmitIrpSynch(
    PDCAM_EXTENSION pDevExt,
    PIRP pIrp,
    PIRB pIrb
    );

NTSTATUS
DCamSynchCR(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP pIrp,
    IN PKEVENT Event
    );

ULONG
bitcount(
    IN ULONG b
    );


#define COMPLETE_SRB(pSrb) if(pSrb->Flags & SRB_HW_FLAGS_STREAM_REQUEST)  \
                              StreamClassStreamNotification(StreamRequestComplete, pSrb->StreamObject, pSrb); \
                           else  \
                              StreamClassDeviceNotification(DeviceRequestComplete, pSrb->HwDeviceExtension, pSrb); 
        


//
// External functions
//

extern 
VOID
DCamReceivePacket(
    IN PHW_STREAM_REQUEST_BLOCK Srb
    );

extern
VOID
DCamCancelAllPackets(
    PHW_STREAM_REQUEST_BLOCK pSrb,
    PDCAM_EXTENSION pDevExt,
    LONG *plPendingReadCount    
    );

extern
VOID
DCamCancelOnePacket(
    IN PHW_STREAM_REQUEST_BLOCK pSrb
    );

extern 
VOID
DCamTimeoutHandler(
    IN PHW_STREAM_REQUEST_BLOCK Srb
    );

extern VOID
DCamBusResetNotification(
    IN PVOID Context
    );