common.cpp

winddk src目录下的WDM源码压缩!

/*++

Copyright (c) 1997-2000  Microsoft Corporation All Rights Reserved

Module Name:

    common.cpp

Abstract:

    Implementation of the AdapterCommon class. 

--*/

#include <msvad.h>
#include "common.h"
#include "hw.h"
#include "savedata.h"

//-----------------------------------------------------------------------------
// Externals
//-----------------------------------------------------------------------------

PSAVEWORKER_PARAM               CSaveData::m_pWorkItems = NULL;
PDEVICE_OBJECT                  CSaveData::m_pDeviceObject = NULL;

//=============================================================================
// Classes
//=============================================================================

///////////////////////////////////////////////////////////////////////////////
// CAdapterCommon
//   

class CAdapterCommon : 
    public IAdapterCommon,
    public IAdapterPowerManagement,
    public CUnknown    
{
	private:
		PPORTWAVECYCLIC         m_pPortWave;    // Port interface
		PSERVICEGROUP           m_pServiceGroupWave;
		PDEVICE_OBJECT          m_pDeviceObject;      
		DEVICE_POWER_STATE      m_PowerState;        

        PCMSVADHW               m_pHW;          // Virtual MSVAD HW object

	public:
		//=====================================================================
		// Default CUnknown
        DECLARE_STD_UNKNOWN();
		DEFINE_STD_CONSTRUCTOR(CAdapterCommon);
		~CAdapterCommon();

		//=====================================================================
		// Default IAdapterPowerManagement
		IMP_IAdapterPowerManagement;

		//=====================================================================
		// IAdapterCommon methods                                               
		STDMETHODIMP_(NTSTATUS) Init
        (   
            IN  PDEVICE_OBJECT  DeviceObject
        );

        STDMETHODIMP_(PDEVICE_OBJECT)   GetDeviceObject(void);

		STDMETHODIMP_(PUNKNOWN *)       WavePortDriverDest(void);

		STDMETHODIMP_(void)     SetWaveServiceGroup
        (   
            IN  PSERVICEGROUP   ServiceGroup
        );

        STDMETHODIMP_(BOOL)     MixerMuteRead
        (
            IN  ULONG           Index
        );

        STDMETHODIMP_(void)     MixerMuteWrite
        (
            IN  ULONG           Index,
            IN  BOOL            Value
        );

        STDMETHODIMP_(ULONG)    MixerMuxRead(void);

        STDMETHODIMP_(void)     MixerMuxWrite
        (
            IN  ULONG           Index
        );

		STDMETHODIMP_(void)     MixerReset(void);

        STDMETHODIMP_(LONG)     MixerVolumeRead
        ( 
            IN  ULONG           Index,
            IN  LONG            Channel
        );

        STDMETHODIMP_(void)     MixerVolumeWrite
        ( 
            IN  ULONG           Index,
            IN  LONG            Channel,
            IN  LONG            Value 
        );

		//=====================================================================
		// friends

        friend NTSTATUS		    NewAdapterCommon
		( 
			OUT PADAPTERCOMMON * OutAdapterCommon, 
			IN  PRESOURCELIST   ResourceList 
		);
};

//-----------------------------------------------------------------------------
// Functions
//-----------------------------------------------------------------------------

//=============================================================================
#pragma code_seg("PAGE")
NTSTATUS
NewAdapterCommon
( 
	OUT PUNKNOWN *              Unknown,
    IN  REFCLSID,
    IN  PUNKNOWN                UnknownOuter OPTIONAL,
    IN  POOL_TYPE               PoolType 
)
/*++

Routine Description:

  Creates a new CAdapterCommon

Arguments:

  Unknown - 

  UnknownOuter -

  PoolType

Return Value:

  NT status code.

--*/
{
	PAGED_CODE();

	ASSERT(Unknown);

	STD_CREATE_BODY_
	( 
		CAdapterCommon, 
        Unknown, 
        UnknownOuter, 
        PoolType,      
		PADAPTERCOMMON 
	);
} // NewAdapterCommon

//=============================================================================
CAdapterCommon::~CAdapterCommon
( 
	void 
)
/*++

Routine Description:

  Destructor for CAdapterCommon.

Arguments:

Return Value:

  void

--*/
{
	PAGED_CODE();

	DPF_ENTER(("[CAdapterCommon::~CAdapterCommon]"));

    if (m_pHW)
    {
        delete m_pHW;
    }

    CSaveData::DestroyWorkItems();

    if (m_pPortWave)
	{
	    m_pPortWave->Release();
	}

	if (m_pServiceGroupWave)
	{
	    m_pServiceGroupWave->Release();
	}
} // ~CAdapterCommon  

//=============================================================================
STDMETHODIMP_(PDEVICE_OBJECT)   
CAdapterCommon::GetDeviceObject
(
    void
)
/*++

Routine Description:

  Returns the deviceobject

Arguments:

Return Value:

  PDEVICE_OBJECT

--*/
{
    PAGED_CODE();
    
    return m_pDeviceObject;
} // GetDeviceObject

//=============================================================================
NTSTATUS
CAdapterCommon::Init
( 
    IN  PDEVICE_OBJECT          DeviceObject 
)
/*++

Routine Description:

    Initialize adapter common object.

Arguments:

    DeviceObject - pointer to the device object

Return Value:

  NT status code.

--*/
{
	PAGED_CODE();

	ASSERT(DeviceObject);

    NTSTATUS                    ntStatus = STATUS_SUCCESS;

    DPF_ENTER(("[CAdapterCommon::Init]"));

	m_pDeviceObject = DeviceObject;
	m_PowerState    = PowerDeviceD0;

    // Initialize HW.
    // 
    m_pHW = new (NonPagedPool, MSVAD_POOLTAG)  CMSVADHW;
    if (!m_pHW)
    {
        DPF(D_TERSE, ("Insufficient memory for MSVAD HW"));
        ntStatus = STATUS_INSUFFICIENT_RESOURCES;
    }
    else
    {
        m_pHW->MixerReset();
    }

    // Initialize the work items for saving data to disk.
    //
    if (NT_SUCCESS(ntStatus))
    {
        ntStatus = CSaveData::InitializeWorkItems(DeviceObject);
    }

    return ntStatus;
} // Init

//=============================================================================
STDMETHODIMP_(void)
CAdapterCommon::MixerReset
( 
	void 
)
/*++

Routine Description:

  Reset mixer registers from registry.

Arguments:

Return Value:

  void

--*/
{
	PAGED_CODE();
    
    if (m_pHW)
    {
        m_pHW->MixerReset();
    }
} // MixerReset

//=============================================================================
STDMETHODIMP
CAdapterCommon::NonDelegatingQueryInterface
( 
	REFIID                      Interface,
    PVOID *                     Object 
)
/*++

Routine Description:

  QueryInterface routine for AdapterCommon

Arguments:

  Interface - 

  Object -

Return Value:

  NT status code.

--*/
{
	PAGED_CODE();

	ASSERT(Object);

	if (IsEqualGUIDAligned(Interface, IID_IUnknown))
	{
		*Object = PVOID(PUNKNOWN(PADAPTERCOMMON(this)));
	}
	else if (IsEqualGUIDAligned(Interface, IID_IAdapterCommon))
	{
		*Object = PVOID(PADAPTERCOMMON(this));
	}
	else if (IsEqualGUIDAligned(Interface, IID_IAdapterPowerManagement))
	{
		*Object = PVOID(PADAPTERPOWERMANAGEMENT(this));
	}
	else
	{
		*Object = NULL;
	}

	if (*Object)
	{
		PUNKNOWN(*Object)->AddRef();
		return STATUS_SUCCESS;
	}

	return STATUS_INVALID_PARAMETER;
} // NonDelegatingQueryInterface

//=============================================================================
STDMETHODIMP_(void)
CAdapterCommon::SetWaveServiceGroup
( 
	IN PSERVICEGROUP            ServiceGroup 
)
/*++

Routine Description:


Arguments:

Return Value:

  NT status code.

--*/
{
    PAGED_CODE();
    
    DPF_ENTER(("[CAdapterCommon::SetWaveServiceGroup]"));
    
    if (m_pServiceGroupWave)
	{
		m_pServiceGroupWave->Release();
	}

	m_pServiceGroupWave = ServiceGroup;

	if (m_pServiceGroupWave)
	{
		m_pServiceGroupWave->AddRef();
	}
} // SetWaveServiceGroup

//=============================================================================
STDMETHODIMP_(PUNKNOWN *)
CAdapterCommon::WavePortDriverDest
( 
	void 
)
/*++

Routine Description:

  Returns the wave port.

Arguments:

Return Value:

  PUNKNOWN : pointer to waveport

--*/
{
	PAGED_CODE();

	return (PUNKNOWN *)&m_pPortWave;
} // WavePortDriverDest
#pragma code_seg()

//=============================================================================
STDMETHODIMP_(BOOL)
CAdapterCommon::MixerMuteRead
(
    IN  ULONG                   Index
)
/*++

Routine Description:

  Store the new value in mixer register array.

Arguments:

  Index - node id

Return Value:

    BOOL - mixer mute setting for this node

--*/
{
    if (m_pHW)
    {
        return m_pHW->GetMixerMute(Index);
    }

    return 0;
} // MixerMuteRead

//=============================================================================
STDMETHODIMP_(void)
CAdapterCommon::MixerMuteWrite
(
    IN  ULONG                   Index,
    IN  BOOL                    Value
)
/*++

Routine Description:

  Store the new value in mixer register array.

Arguments:

  Index - node id

  Value - new mute settings

Return Value:

  NT status code.

--*/
{
    if (m_pHW)
    {
        m_pHW->SetMixerMute(Index, Value);
    }
} // MixerMuteWrite

//=============================================================================
STDMETHODIMP_(ULONG)
CAdapterCommon::MixerMuxRead() 
/*++

Routine Description:

  Return the mux selection

Arguments:

  Index - node id

  Value - new mute settings

Return Value:

  NT status code.

--*/
{
    if (m_pHW)
    {
        return m_pHW->GetMixerMux();
    }

    return 0;
} // MixerMuxRead

//=============================================================================
STDMETHODIMP_(void)
CAdapterCommon::MixerMuxWrite
(
    IN  ULONG                   Index
)
/*++

Routine Description:

  Store the new mux selection

Arguments:

  Index - node id

  Value - new mute settings

Return Value:

  NT status code.

--*/
{
    if (m_pHW)
    {
        m_pHW->SetMixerMux(Index);
    }
} // MixerMuxWrite

//=============================================================================
STDMETHODIMP_(LONG)
CAdapterCommon::MixerVolumeRead
( 
	IN  ULONG                   Index,
    IN  LONG                    Channel
)
/*++

Routine Description:

  Return the value in mixer register array.

Arguments:

  Index - node id

  Channel = which channel

Return Value:

    Byte - mixer volume settings for this line

--*/
{
    if (m_pHW)
    {
        return m_pHW->GetMixerVolume(Index, Channel);
    }

    return 0;
} // MixerVolumeRead

//=============================================================================
STDMETHODIMP_(void)
CAdapterCommon::MixerVolumeWrite
( 
	IN  ULONG                   Index,
    IN  LONG                    Channel,
    IN  LONG                    Value
)
/*++

Routine Description:

  Store the new value in mixer register array.

Arguments:

  Index - node id

  Channel - which channel

  Value - new volume level

Return Value:

    void

--*/
{
    if (m_pHW)
    {
        m_pHW->SetMixerVolume(Index, Channel, Value);
    }
} // MixerVolumeWrite

//=============================================================================
STDMETHODIMP_(void)
CAdapterCommon::PowerChangeState
( 
    IN  POWER_STATE             NewState 
)
/*++

Routine Description:


Arguments:

  NewState - The requested, new power state for the device. 

Return Value:

    void

--*/
{
    UINT i;

    DPF_ENTER(("[CAdapterCommon::PowerChangeState]"));

    // is this actually a state change??
    //
    if (NewState.DeviceState != m_PowerState)
    {
        // switch on new state
        //
        switch (NewState.DeviceState)
        {
            case PowerDeviceD0:
            case PowerDeviceD1:
            case PowerDeviceD2:
            case PowerDeviceD3:
                m_PowerState = NewState.DeviceState;

                DPF
                ( 
                    D_VERBOSE, 
                    ("Entering D%d", ULONG(m_PowerState) - ULONG(PowerDeviceD0)) 
                );

                break;
    
            default:
            
                DPF(D_VERBOSE, ("Unknown Device Power State"));
                break;
        }
    }
} // PowerStateChange

//=============================================================================
STDMETHODIMP_(NTSTATUS)
CAdapterCommon::QueryDeviceCapabilities
( 
    IN  PDEVICE_CAPABILITIES    PowerDeviceCaps 
)
/*++

Routine Description:

    Called at startup to get the caps for the device.  This structure provides 
    the system with the mappings between system power state and device power 
    state.  This typically will not need modification by the driver.         

Arguments:

  PowerDeviceCaps - The device's capabilities. 

Return Value:

  NT status code.

--*/
{
    DPF_ENTER(("[CAdapterCommon::QueryDeviceCapabilities]"));

    return (STATUS_SUCCESS);
} // QueryDeviceCapabilities

//=============================================================================
STDMETHODIMP_(NTSTATUS)
CAdapterCommon::QueryPowerChangeState
( 
    IN  POWER_STATE             NewStateQuery 
)
/*++

Routine Description:

  Query to see if the device can change to this power state 

Arguments:

  NewStateQuery - The requested, new power state for the device

Return Value:

  NT status code.

--*/
{
    DPF_ENTER(("[CAdapterCommon::QueryPowerChangeState]"));

    return STATUS_SUCCESS;
} // QueryPowerChangeState