/*++Copyright (c) 1997-2000  Microsoft Corporation All Rights Reserved Module Name:    hw.cpp Abstract:    Implementation of MSVAD HW class.     MSVAD HW has an array for storing mixer and volume settings    for the topology.--*/#include "scream.h"#include "hw.h" //=============================================================================// CMSVADHW//============================================================================= //=============================================================================#pragma code_seg("PAGE")CMSVADHW::CMSVADHW() : m_ulMux(0), m_bDevSpecific(FALSE), m_iDevSpecific(0), m_uiDevSpecific(0)/*++Routine Description:  Constructor for MSVADHW.  Arguments: Return Value:  void--*/{    PAGED_CODE();        MixerReset();} // CMSVADHW#pragma code_seg() //=============================================================================BOOL CMSVADHW::bGetDevSpecific()/*++Routine Description:  Gets the HW (!) Device Specific info Arguments:  N/A Return Value:  True or False (in this example).--*/{    return m_bDevSpecific;} // bGetDevSpecific //=============================================================================void CMSVADHW::bSetDevSpecific(IN BOOL bDevSpecific)/*++Routine Description:  Sets the HW (!) Device Specific info Arguments:  fDevSpecific - true or false for this example. Return Value:  void--*/{    m_bDevSpecific = bDevSpecific;} // bSetDevSpecific //=============================================================================INT CMSVADHW::iGetDevSpecific()/*++Routine Description:  Gets the HW (!) Device Specific info Arguments:  N/A Return Value:  int (in this example).--*/{    return m_iDevSpecific;} // iGetDevSpecific //=============================================================================void CMSVADHW::iSetDevSpecific(IN INT iDevSpecific)/*++Routine Description:  Sets the HW (!) Device Specific info Arguments:  fDevSpecific - true or false for this example. Return Value:  void--*/{    m_iDevSpecific = iDevSpecific;} // iSetDevSpecific //=============================================================================UINT CMSVADHW::uiGetDevSpecific()/*++Routine Description:  Gets the HW (!) Device Specific info Arguments:  N/A Return Value:  UINT (in this example).--*/{    return m_uiDevSpecific;} // uiGetDevSpecific //=============================================================================void CMSVADHW::uiSetDevSpecific(IN UINT uiDevSpecific)/*++Routine Description:  Sets the HW (!) Device Specific info Arguments:  uiDevSpecific - int for this example. Return Value:  void--*/{    m_uiDevSpecific = uiDevSpecific;} // uiSetDevSpecific  //=============================================================================BOOL CMSVADHW::GetMixerMute(IN ULONG ulNode)/*++Routine Description:  Gets the HW (!) mute levels for MSVAD Arguments:  ulNode - topology node id Return Value:  mute setting--*/{    if (ulNode < MAX_TOPOLOGY_NODES) {        return m_MuteControls[ulNode];    }     return 0;} // GetMixerMute //=============================================================================ULONG CMSVADHW::GetMixerMux()/*++Routine Description:  Return the current mux selection Arguments: Return Value:  ULONG--*/{    return m_ulMux;} // GetMixerMux //=============================================================================LONG CMSVADHW::GetMixerVolume(       IN  ULONG ulNode,    IN  LONG  lChannel)/*++Routine Description:  Gets the HW (!) volume for MSVAD. Arguments:  ulNode - topology node id  lChannel - which channel are we setting? Return Value:  LONG - volume level--*/{    UNREFERENCED_PARAMETER(lChannel);     if (ulNode < MAX_TOPOLOGY_NODES) {        return m_VolumeControls[ulNode];    }     return 0;} // GetMixerVolume //=============================================================================#pragma code_seg("PAGE")void CMSVADHW::MixerReset()/*++Routine Description:  Resets the mixer registers. Arguments: Return Value:  void--*/{    PAGED_CODE();        RtlFillMemory(m_VolumeControls, sizeof(LONG) * MAX_TOPOLOGY_NODES, 0xFF);    RtlFillMemory(m_MuteControls, sizeof(BOOL) * MAX_TOPOLOGY_NODES, TRUE);        // BUGBUG change this depending on the topology    m_ulMux = 2;} // MixerReset#pragma code_seg() //=============================================================================void CMSVADHW::SetMixerMute(    IN  ULONG                   ulNode,    IN  BOOL                    fMute)/*++Routine Description:  Sets the HW (!) mute levels for MSVAD Arguments:  ulNode - topology node id  fMute - mute flag Return Value:  void--*/{    if (ulNode < MAX_TOPOLOGY_NODES) {        m_MuteControls[ulNode] = fMute;    }} // SetMixerMute //=============================================================================void CMSVADHW::SetMixerMux(    IN  ULONG                   ulNode)/*++Routine Description:  Sets the HW (!) mux selection Arguments:  ulNode - topology node id Return Value:  void--*/{    m_ulMux = ulNode;} // SetMixMux //=============================================================================void CMSVADHW::SetMixerVolume(       IN  ULONG                   ulNode,    IN  LONG                    lChannel,    IN  LONG                    lVolume)/*++Routine Description:  Sets the HW (!) volume for MSVAD. Arguments:  ulNode - topology node id  lChannel - which channel are we setting?  lVolume - volume level Return Value:  void--*/{    UNREFERENCED_PARAMETER(lChannel);     if (ulNode < MAX_TOPOLOGY_NODES) {        m_VolumeControls[ulNode] = lVolume;    }} // SetMixerVolume