wdmtuner.h

传说中的 视频抓取驱动源码 啊啊啊啊啊啊啊啊啊啊啊啊啊

//==========================================================================;
//
//  WDMTuner.H
//  WDM Tuner MiniDriver. 
//      CWDMTuner Class definition.
//  Copyright (c) 1996 - 1997  ATI Technologies Inc.  All Rights Reserved.
//
//==========================================================================;

#ifndef _WDMTUNER_H_
#define _WDMTUNER_H_

#include "i2script.h"
#include "aticonfg.h"
#include "pinmedia.h"

#define KSPROPERTIES_TUNER_LAST         ( KSPROPERTY_TUNER_STATUS + 1) 

typedef struct                          // this structure is derived from MS KSPROPERTY_TUNER_CAPS_S
{
    ULONG  ulStandardsSupported;        // KS_AnalogVideo_*
    ULONG  ulMinFrequency;              // Hz
    ULONG  ulMaxFrequency;              // Hz
    ULONG  ulTuningGranularity;         // Hz
    ULONG  ulNumberOfInputs;            // count of inputs
    ULONG  ulSettlingTime;              // milliSeconds
    ULONG  ulStrategy;                  // KS_TUNER_STRATEGY

} ATI_KSPROPERTY_TUNER_CAPS, * PATI_KSPROPERTY_TUNER_CAPS;


class CATIWDMTuner
{
public:
    CATIWDMTuner        ( PPORT_CONFIGURATION_INFORMATION pConfigInfo, CI2CScript * pCScript, PUINT puiErrorCode);
    ~CATIWDMTuner       ();
    PVOID operator new  ( size_t stSize, PVOID pAllocation);

// Attributes   
private:
    // pending device Srb
    PHW_STREAM_REQUEST_BLOCK    m_pPendingDeviceSrb;

    // WDM global topology headers
    GUID                        m_wdmTunerTopologyCategory;
    KSTOPOLOGY                  m_wdmTunerTopology;

    // WDM global property headers
    PKSPIN_MEDIUM               m_pTVTunerPinsMediumInfo;
    PBOOL                       m_pTVTunerPinsDirectionInfo;
    KSPROPERTY_ITEM             m_wdmTunerProperties[KSPROPERTIES_TUNER_LAST];
    KSPROPERTY_SET              m_wdmTunerPropertySet;

    // WDM global stream headers
    HW_STREAM_HEADER            m_wdmTunerStreamHeader;

    // WDM adapter properties
    // configuration properties
    CATIHwConfiguration         m_CATIConfiguration;
    ULONG                       m_ulNumberOfStandards;
    ATI_KSPROPERTY_TUNER_CAPS   m_wdmTunerCaps;
    ULONG                       m_ulVideoStandard;
    ULONG                       m_ulTuningFrequency;
    ULONG                       m_ulSupportedModes;
    ULONG                       m_ulTunerMode;
    ULONG                       m_ulNumberOfPins;
    ULONG                       m_ulTunerInput;
    DEVICE_POWER_STATE          m_ulPowerState;

    // configuration properties
    UINT                        m_uiTunerId;
    ULONG                       m_ulIntermediateFrequency;
    UCHAR                       m_uchTunerI2CAddress;

    // I2C client properties
    CI2CScript *                m_pI2CScript;

// Implementation
public:
    BOOL        AdapterUnInitialize             ( PHW_STREAM_REQUEST_BLOCK pSrb);
    BOOL        AdapterGetStreamInfo            ( PHW_STREAM_REQUEST_BLOCK pSrb);
    BOOL        AdapterQueryUnload              ( PHW_STREAM_REQUEST_BLOCK pSrb);
    BOOL        AdapterGetProperty              ( PHW_STREAM_REQUEST_BLOCK pSrb);
    BOOL        AdapterSetProperty              ( PHW_STREAM_REQUEST_BLOCK pSrb);
    NTSTATUS    AdapterSetPowerState            ( PHW_STREAM_REQUEST_BLOCK pSrb);
    NTSTATUS    AdapterCompleteInitialization   ( PHW_STREAM_REQUEST_BLOCK pSrb);

private:
    BOOL        SetTunerWDMCapabilities         ( UINT uiTunerId);
    void        SetWDMTunerKSProperties         ( void);
    void        SetWDMTunerKSTopology           ( void);

    BOOL        SetTunerVideoStandard           ( ULONG ulStandard);
    BOOL        SetTunerInput                   ( ULONG nInput);
    BOOL        SetTunerFrequency               ( ULONG ulFrequency);
    BOOL        SetTunerMode                    ( ULONG ulModeToSet);

    BOOL        GetTunerPLLOffsetBusyStatus     ( PLONG plPLLOffset, PBOOL pbBusyStatus);

    USHORT      GetTunerControlCode             ( ULONG ulFrequencyDivider);
};


#endif  // _WDMTUNER_H_