155 lines
5.3 KiB
C
155 lines
5.3 KiB
C
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/********************************************************************************
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** Copyright (c) 1998-2000 Microsoft Corporation. All Rights Reserved.
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**
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** Portions Copyright (c) 1998-1999 Intel Corporation
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**
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********************************************************************************/
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#ifndef _MINWAVE_H_
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#define _MINWAVE_H_
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#include "shared.h"
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/*****************************************************************************
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* Constants
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*****************************************************************************
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*/
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const int WAVE_SAMPLERATES_TESTED = 7;
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const int MIC_SAMPLERATES_TESTED = 4;
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const DWORD dwWaveSampleRates[WAVE_SAMPLERATES_TESTED] =
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{48000, 44100, 32000, 22050, 16000, 11025, 8000};
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const DWORD dwMicSampleRates[MIC_SAMPLERATES_TESTED] =
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{48000, 32000, 16000, 8000};
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const int PIN_WAVEOUT_OFFSET = (PIN_WAVEOUT / 2);
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const int PIN_WAVEIN_OFFSET = (PIN_WAVEIN / 2);
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const int PIN_MICIN_OFFSET = (PIN_MICIN / 2);
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/*****************************************************************************
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* Forward References
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*****************************************************************************
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*/
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class CMiniportWaveICHStream;
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extern NTSTATUS CreateMiniportWaveICHStream
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(
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OUT CMiniportWaveICHStream ** pWaveIchStream,
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IN PUNKNOWN pUnknown,
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IN POOL_TYPE PoolType
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);
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/*****************************************************************************
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* Classes
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*****************************************************************************
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*/
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/*****************************************************************************
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* CMiniportWaveICH
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*****************************************************************************
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* ICH wave PCI miniport. This object is associated with the device and is
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* created when the device is started. The class inherits IMiniportWavePci
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* so it can expose this interface, CUnknown so it automatically gets
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* reference counting and aggregation support, and IPowerNotify for ACPI
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* power management notification.
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*/
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class CMiniportWaveICH : public IMiniportWavePci,
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public IPowerNotify,
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public CUnknown
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{
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private:
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// The stream class accesses a lot of private member variables.
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// A better way would be to abstract the access through member
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// functions which on the other hand would produce more overhead
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// both in CPU time and programming time.
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friend class CMiniportWaveICHStream;
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//
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// CMiniportWaveICH private variables
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//
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CMiniportWaveICHStream *Streams[PIN_MICIN_OFFSET + 1];
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PPORTWAVEPCI Port; // Port driver object.
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PADAPTERCOMMON AdapterCommon; // Adapter common object.
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PADAPTER_OBJECT AdapterObject;
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PINTERRUPTSYNC InterruptSync; // Interrupt Sync.
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PDMACHANNEL DmaChannel; // Bus master support.
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DEVICE_POWER_STATE m_PowerState; // advanced power control.
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DWORD m_dwChannelMask; // Channel config for speaker positions.
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WORD m_wChannels; // Number of channels.
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/*************************************************************************
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* CMiniportWaveICH methods
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*************************************************************************
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* These are private member functions used internally by the object. See
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* MINWAVE.CPP for specific descriptions.
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*/
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//
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// Checks and connects the miniport to the resources.
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//
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NTSTATUS ProcessResources
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(
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IN PRESOURCELIST ResourceList
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);
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//
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// Tests the data format but not the sample rate.
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//
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NTSTATUS TestDataFormat
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(
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IN PKSDATAFORMAT Format,
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IN WavePins Pin
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);
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// Test for standard sample rate support and fill the data range information
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// in the structures below.
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NTSTATUS BuildDataRangeInformation (void);
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public:
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/*************************************************************************
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* The following two macros are from STDUNK.H. DECLARE_STD_UNKNOWN()
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* defines inline IUnknown implementations that use CUnknown's aggregation
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* support. NonDelegatingQueryInterface() is declared, but it cannot be
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* implemented generically. Its definition appears in MINWAVE.CPP.
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* DEFINE_STD_CONSTRUCTOR() defines inline a constructor which accepts
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* only the outer unknown, which is used for aggregation. The standard
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* create macro (in MINWAVE.CPP) uses this constructor.
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*/
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DECLARE_STD_UNKNOWN ();
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DEFINE_STD_CONSTRUCTOR (CMiniportWaveICH);
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~CMiniportWaveICH ();
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//
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// Include IMiniportWavePci (public/exported) methods
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//
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IMP_IMiniportWavePci;
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//
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// IPowerNotify methods
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//
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IMP_IPowerNotify;
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//
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// This static functions is the interrupt service routine which is
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// not stream related, but services all streams at once.
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//
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static NTSTATUS InterruptServiceRoutine
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(
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IN PINTERRUPTSYNC InterruptSync,
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IN PVOID StaticContext
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);
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//
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// This is the property handler for KSPROPERTY_AUDIO_CHANNEL_CONFIG of the
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// DAC node.
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//
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static NTSTATUS PropertyChannelConfig
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(
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IN PPCPROPERTY_REQUEST PropertyRequest
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);
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};
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#endif // _MINWAVE_H_
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