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Diffstat (limited to 'audio/sysvad/hw.cpp')
| -rw-r--r-- | audio/sysvad/hw.cpp | 448 |
1 files changed, 448 insertions, 0 deletions
diff --git a/audio/sysvad/hw.cpp b/audio/sysvad/hw.cpp new file mode 100644 index 00000000..2ba0d514 --- /dev/null +++ b/audio/sysvad/hw.cpp @@ -0,0 +1,448 @@ +/*++ + +Copyright (c) Microsoft Corporation All Rights Reserved + +Module Name: + + hw.cpp + +Abstract: + + Implementation of SYSVAD HW class. + SYSVAD HW has an array for storing mixer and volume settings + for the topology. + + +--*/ +#include <sysvad.h> +#include "hw.h" + +//============================================================================= +// CSYSVADHW +//============================================================================= + +//============================================================================= +#pragma code_seg("PAGE") +CSYSVADHW::CSYSVADHW() +: m_ulMux(0), + m_bDevSpecific(FALSE), + m_iDevSpecific(0), + m_uiDevSpecific(0) +/*++ + +Routine Description: + + Constructor for SYSVADHW. + +Arguments: + +Return Value: + + void + +--*/ +{ + PAGED_CODE(); + + MixerReset(); +} // CSYSVADHW +#pragma code_seg() + + +//============================================================================= +BOOL +CSYSVADHW::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 +CSYSVADHW::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 +CSYSVADHW::iGetDevSpecific() +/*++ + +Routine Description: + + Gets the HW (!) Device Specific info + +Arguments: + + N/A + +Return Value: + + int (in this example). + +--*/ +{ + return m_iDevSpecific; +} // iGetDevSpecific + +//============================================================================= +void +CSYSVADHW::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 +CSYSVADHW::uiGetDevSpecific() +/*++ + +Routine Description: + + Gets the HW (!) Device Specific info + +Arguments: + + N/A + +Return Value: + + UINT (in this example). + +--*/ +{ + return m_uiDevSpecific; +} // uiGetDevSpecific + +//============================================================================= +void +CSYSVADHW::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 +CSYSVADHW::GetMixerMute +( + _In_ ULONG ulNode, + _In_ ULONG ulChannel +) +/*++ + +Routine Description: + + Gets the HW (!) mute levels for SYSVAD + +Arguments: + + ulNode - topology node id + + ulChannel - which channel are we reading? + +Return Value: + + mute setting + +--*/ +{ + UNREFERENCED_PARAMETER(ulChannel); + + if (ulNode < MAX_TOPOLOGY_NODES) + { + return m_MuteControls[ulNode]; + } + + return 0; +} // GetMixerMute + +//============================================================================= +ULONG +CSYSVADHW::GetMixerMux() +/*++ + +Routine Description: + + Return the current mux selection + +Arguments: + +Return Value: + + ULONG + +--*/ +{ + return m_ulMux; +} // GetMixerMux + +//============================================================================= +LONG +CSYSVADHW::GetMixerVolume +( + _In_ ULONG ulNode, + _In_ ULONG ulChannel +) +/*++ + +Routine Description: + + Gets the HW (!) volume for SYSVAD. + +Arguments: + + ulNode - topology node id + + ulChannel - which channel are we reading? + +Return Value: + + LONG - volume level + +--*/ +{ + UNREFERENCED_PARAMETER(ulChannel); + + if (ulNode < MAX_TOPOLOGY_NODES) + { + return m_VolumeControls[ulNode]; + } + + return 0; +} // GetMixerVolume + +//============================================================================= +LONG +CSYSVADHW::GetMixerPeakMeter +( + _In_ ULONG ulNode, + _In_ ULONG ulChannel +) +/*++ + +Routine Description: + + Gets the HW (!) peak meter for SYSVAD. + +Arguments: + + ulNode - topology node id + + ulChannel - which channel are we reading? + +Return Value: + + LONG - sample peak meter level + +--*/ +{ + UNREFERENCED_PARAMETER(ulChannel); + + if (ulNode < MAX_TOPOLOGY_NODES) + { + return m_PeakMeterControls[ulNode]; + } + + return 0; +} // GetMixerVolume + +//============================================================================= +#pragma code_seg("PAGE") +void +CSYSVADHW::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); + + for (ULONG i=0; i<MAX_TOPOLOGY_NODES; ++i) + { + m_PeakMeterControls[i] = PEAKMETER_SIGNED_MAXIMUM/2; + } + + // BUGBUG change this depending on the topology + m_ulMux = 2; +} // MixerReset +#pragma code_seg() + +//============================================================================= +void +CSYSVADHW::SetMixerMute +( + _In_ ULONG ulNode, + _In_ ULONG ulChannel, + _In_ BOOL fMute +) +/*++ + +Routine Description: + + Sets the HW (!) mute levels for SYSVAD + +Arguments: + + ulNode - topology node id + + ulChannel - which channel are we setting? + + fMute - mute flag + +Return Value: + + void + +--*/ +{ + UNREFERENCED_PARAMETER(ulChannel); + + if (ulNode < MAX_TOPOLOGY_NODES) + { + m_MuteControls[ulNode] = fMute; + } +} // SetMixerMute + +//============================================================================= +void +CSYSVADHW::SetMixerMux +( + _In_ ULONG ulNode +) +/*++ + +Routine Description: + + Sets the HW (!) mux selection + +Arguments: + + ulNode - topology node id + +Return Value: + + void + +--*/ +{ + m_ulMux = ulNode; +} // SetMixMux + +//============================================================================= +void +CSYSVADHW::SetMixerVolume +( + _In_ ULONG ulNode, + _In_ ULONG ulChannel, + _In_ LONG lVolume +) +/*++ + +Routine Description: + + Sets the HW (!) volume for SYSVAD. + +Arguments: + + ulNode - topology node id + + ulChannel - which channel are we setting? + + lVolume - volume level + +Return Value: + + void + +--*/ +{ + UNREFERENCED_PARAMETER(ulChannel); + + if (ulNode < MAX_TOPOLOGY_NODES) + { + m_VolumeControls[ulNode] = lVolume; + } +} // SetMixerVolume + |