cameradriver.cpp.svn-base

PXA270 平台 Windows Mobile 5 摄像头驱动

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//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
/*++


Module Name:

    CameraDriver.cpp

Abstract:

    Intel PXA27x Mainstone II Direct Show camera driver

Notes:
    

Revision History:

--*/

#include <windows.h>
#include <devload.h>
#include <nkintr.h>

#define CAMINTERFACE
#include "CameraDriver.h"


EXTERN_C
DWORD
CAM_Init(
    VOID * pContext
    )
{    
    CAMERADEVICE * pCamDev = NULL;
    DEBUGMSG(ZONE_INIT, (_T("CAM_Init: context %s\n"), pContext));
    
    if( OEM_CERTIFY_TRUST != CeGetCallerTrust() )
    {
        SetLastError(ERROR_ACCESS_DENIED);
    }
    else
    {
        pCamDev = new CAMERADEVICE;
        
        if ( NULL != pCamDev )
        {
            // NOTE: real drivers would need to validate pContext before dereferencing the pointer
            if ( false == pCamDev->Initialize( pContext ) )
            {
                SetLastError( ERROR_INVALID_HANDLE );
                SAFEDELETE( pCamDev );
                DEBUGMSG( ZONE_INIT|ZONE_ERROR, ( _T("CAM_Init: Initialization Failed") ) );
            }
        }
        else
        {
            SetLastError( ERROR_OUTOFMEMORY );
        }
    }    
    DEBUGMSG( ZONE_INIT, ( _T("CAM_Init: returning 0x%08x\r\n"), reinterpret_cast<DWORD>( pCamDev ) ) );

    return reinterpret_cast<DWORD>( pCamDev );
}


EXTERN_C
BOOL
CAM_Deinit(
    DWORD dwContext
    )
{
    DEBUGMSG( ZONE_INIT, ( _T("CAM_Deinit\r\n") ) );

    CAMERADEVICE * pCamDevice = reinterpret_cast<CAMERADEVICE *>( dwContext );
    SAFEDELETE( pCamDevice );

    return TRUE;
}


EXTERN_C
BOOL
CAM_IOControl(
    DWORD   dwContext,
    DWORD   Ioctl,
    UCHAR * pInBufUnmapped,
    DWORD   InBufLen, 
    UCHAR * pOutBufUnmapped,
    DWORD   OutBufLen,
    DWORD * pdwBytesTransferred
   )
{
    DEBUGMSG( ZONE_FUNCTION, ( _T("CAM_IOControl(%08x): IOCTL:0x%x, InBuf:0x%x, InBufLen:%d, OutBuf:0x%x, OutBufLen:0x%x)\r\n"), dwContext, Ioctl, pInBufUnmapped, InBufLen, pOutBufUnmapped, OutBufLen ) );

    UCHAR * pInBuf = NULL;
    UCHAR * pOutBuf = NULL;
    DWORD dwErr = ERROR_INVALID_PARAMETER;
    BOOL  bRc   = FALSE;
    
    if ( ( NULL == pInBufUnmapped )
         || ( InBufLen < sizeof ( CSPROPERTY ) )
         || ( NULL == pdwBytesTransferred ) )
    {
        SetLastError( dwErr );

        return bRc;
    }

    pInBuf = (UCHAR*) MapCallerPtr( pInBufUnmapped, InBufLen );
    if(( pInBuf == NULL ) && ( pInBufUnmapped != NULL ))
    {
        DEBUGMSG( ZONE_IOCTL|ZONE_ERROR, ( _T("CAM_IOControl(%08x): CAM_IOControl. MapCallerPtr failed for incoming buffer.\r\n"), dwContext ) );

        return dwErr;
    }

    pOutBuf = (UCHAR*) MapCallerPtr( pOutBufUnmapped, OutBufLen );
    if (( NULL == pOutBuf ) && ( pOutBufUnmapped != NULL ))
    {
        DEBUGMSG( ZONE_IOCTL|ZONE_ERROR, ( _T("CAM_IOControl(%08x): CAM_IOControl. MapCallerPtr failed for incoming buffer.\r\n"), dwContext ) );

        return dwErr;
    }

    if ( NULL == MapCallerPtr( pdwBytesTransferred, sizeof ( DWORD ) ) )
    {
        DEBUGMSG( ZONE_IOCTL|ZONE_ERROR, ( _T("CAM_IOControl(%08x): CAM_IOControl. MapCallerPtr failed for dwBytesTransferred.\r\n"), dwContext ) );

        return dwErr;
    }

    CAMERAOPENHANDLE * pCamOpenHandle = reinterpret_cast<CAMERAOPENHANDLE *>( dwContext );
    CAMERADEVICE     * pCamDevice     = pCamOpenHandle->pCamDevice;
    CSPROPERTY       * pCsProp        = reinterpret_cast<CSPROPERTY *>( MapCallerPtr( pInBuf, sizeof ( CSPROPERTY ) ) );
    
    if ( NULL == pCsProp )
    {
        DEBUGMSG( ZONE_IOCTL|ZONE_ERROR, (_T("CAM_IOControl(%08x): MapCallerPtr failed for input buffer.\r\n"), dwContext ) );

        return dwErr;
    }
    
    switch ( Ioctl )
    {
        case IOCTL_CS_PROPERTY:
        {
            DEBUGMSG( ZONE_IOCTL, ( _T("CAM_IOControl(%08x): IOCTL_CS_PROPERTY\r\n"), dwContext ) );

            __try 
            {
                if ( TRUE == IsEqualGUID( pCsProp->Set, CSPROPSETID_Pin ) )
                {   
                    dwErr = pCamDevice->AdapterHandlePinRequests( pInBuf, InBufLen, pOutBuf, OutBufLen, pdwBytesTransferred );
                }
                else if ( TRUE == IsEqualGUID( pCsProp->Set, CSPROPSETID_VERSION ) )
                {
                    dwErr = pCamDevice->AdapterHandleVersion( pOutBuf, OutBufLen, pdwBytesTransferred );
                }
                else if ( TRUE == IsEqualGUID( pCsProp->Set, PROPSETID_VIDCAP_VIDEOPROCAMP ) )
                {   
                    dwErr = pCamDevice->AdapterHandleVidProcAmpRequests( pInBuf,InBufLen, pOutBuf, OutBufLen, pdwBytesTransferred );
                }
                else if ( TRUE == IsEqualGUID( pCsProp->Set, PROPSETID_VIDCAP_CAMERACONTROL ) )
                {   
                    dwErr = pCamDevice->AdapterHandleCamControlRequests( pInBuf,InBufLen, pOutBuf, OutBufLen, pdwBytesTransferred );
                }
                else if ( TRUE == IsEqualGUID( pCsProp->Set, PROPSETID_VIDCAP_VIDEOCOMPRESSION ) )
                {   
                    dwErr = pCamDevice->AdapterHandleCompressionRequests( pInBuf,InBufLen, pOutBuf, OutBufLen, pdwBytesTransferred );
                }
                else if ( TRUE == IsEqualGUID( pCsProp->Set, PROPSETID_VIDCAP_VIDEOCONTROL ) )
                {   
                    dwErr = pCamDevice->AdapterHandleVideoControlRequests( pInBuf,InBufLen, pOutBuf, OutBufLen, pdwBytesTransferred );
                }
                else if ( TRUE == IsEqualGUID( pCsProp->Set, PROPSETID_VIDCAP_DROPPEDFRAMES) )
                {   
                    dwErr = pCamDevice->AdapterHandleDroppedFramesRequests( pInBuf,InBufLen, pOutBuf, OutBufLen, pdwBytesTransferred );
                }
                else
                {
                    DEBUGMSG( ZONE_IOCTL, ( _T("CAM_IOControl(%08x): Unsupported PropertySet Request%u\r\n"), dwContext, pCsProp->Set ) );
                    dwErr = ERROR_NOT_SUPPORTED;
                }
            }
            __except ( EXCEPTION_EXECUTE_HANDLER )
            {
                DEBUGMSG( ZONE_IOCTL, ( _T("CAM_IOControl(%08x):Exception in IOCTL_CS_PROPERTY"), dwContext ) );
            }

            break;
        }

        default:
        {
            DEBUGMSG( ZONE_IOCTL, (_T("CAM_IOControl(%08x): Unsupported IOCTL code %u\r\n"), dwContext, Ioctl ) );
            dwErr = ERROR_NOT_SUPPORTED;

            break;
        }
    }
    
    // pass back appropriate response codes
    SetLastError( dwErr );

    return ( ( dwErr == ERROR_SUCCESS ) ? TRUE : FALSE );
}


EXTERN_C
DWORD
CAM_Open(
    DWORD Context, 
    DWORD Access,
    DWORD ShareMode
    )
{
    DEBUGMSG( ZONE_FUNCTION, ( _T("CAM_Open(%x, 0x%x, 0x%x)\r\n"), Context, Access, ShareMode ) );

    UNREFERENCED_PARAMETER( ShareMode );
    UNREFERENCED_PARAMETER( Access );

    // TODO : HANDLE ShareMode and Access parameters
    
    CAMERADEVICE     * pCamDevice     = reinterpret_cast<CAMERADEVICE *>( Context );
    CAMERAOPENHANDLE * pCamOpenHandle = NULL;
    HANDLE             hCurrentProc   = NULL;
    
    hCurrentProc = GetCallerProcess();

    ASSERT( pCamDevice != NULL );

    if ( pCamDevice->BindApplicationProc( hCurrentProc ) )
    {
        pCamOpenHandle = new CAMERAOPENHANDLE;

        if ( NULL == pCamOpenHandle )
        {
            DEBUGMSG( ZONE_FUNCTION, ( _T("CAM_Open(%x): Not enought memory to create open handle\r\n"), Context ) );
        }
        else
        {
            pCamOpenHandle->pCamDevice = pCamDevice;
        }
    }
    else
    {
        SetLastError( ERROR_ALREADY_INITIALIZED );
    }

    return reinterpret_cast<DWORD>( pCamOpenHandle );
}


EXTERN_C
BOOL  
CAM_Close(
    DWORD Context
    ) 
{
    DEBUGMSG( ZONE_FUNCTION, ( _T("CAM_Close(%x)\r\n"), Context ) );
    
    PCAMERAOPENHANDLE pCamOpenHandle = reinterpret_cast<PCAMERAOPENHANDLE>( Context );

    pCamOpenHandle->pCamDevice->UnBindApplicationProc( );
    SAFEDELETE( pCamOpenHandle ) ;

    return TRUE;
}


BOOL
__stdcall
DllMain(
   HANDLE   hDllHandle, 
   DWORD    dwReason, 
   VOID   * lpReserved
   ) 
{
    BOOL bRc = TRUE;
    
    UNREFERENCED_PARAMETER( lpReserved );
    
    switch ( dwReason )
    {
        case DLL_PROCESS_ATTACH: 
        {
           DEBUGREGISTER( reinterpret_cast<HMODULE>( hDllHandle ) );
           DEBUGMSG( ZONE_INIT, ( _T("*** DLL_PROCESS_ATTACH - Current Process: 0x%x, ID: 0x%x ***\r\n"), GetCurrentProcess(), GetCurrentProcessId() ) );

           DisableThreadLibraryCalls( reinterpret_cast<HMODULE>( hDllHandle ) );

           break;
        } 

        case DLL_PROCESS_DETACH: 
        {
            DEBUGMSG( ZONE_INIT, ( _T("*** DLL_PROCESS_DETACH - Current Process: 0x%x, ID: 0x%x ***\r\n"), GetCurrentProcess(), GetCurrentProcessId() ) );

            break;
        } 
            
        case DLL_THREAD_DETACH:
        {
            break;
        }
            
        case DLL_THREAD_ATTACH:
        {
            break;
        }
            
        default:
        {
            break;
        }
    }
    
    return bRc;
}