minwave.cpp

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/*
Copyright (c) 2006-2008 dogbert <dogber1@gmail.com>
All rights reserved.
 
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
   derived from this software without specific prior written permission.
 
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
#include "minwave.hpp"
#include "minwavetables.hpp"
#include "ntddk.h"
 
#ifdef _MSC_VER
#pragma code_seg("PAGE")
#endif
 
NTSTATUS NTAPI CreateMiniportWaveCMI(PUNKNOWN *Unknown, REFCLSID, PUNKNOWN UnknownOuter, POOL_TYPE PoolType)
{
    PAGED_CODE();
    ASSERT(Unknown);
#ifdef WAVERT
    STD_CREATE_BODY_(CMiniportWaveCMI,Unknown,UnknownOuter,PoolType,PMINIPORTWAVERT);
#else
    STD_CREATE_BODY_(CMiniportWaveCMI,Unknown,UnknownOuter,PoolType,PMINIPORTWAVECYCLIC);
#endif
}
 
NTSTATUS CMiniportWaveCMI::processResources(PRESOURCELIST resourceList)
{
    PAGED_CODE();
    ASSERT (resourceList);
    DBGPRINT(("CMiniportWaveCMI[%p]::ProcessResources(%p)", this, resourceList));
 
    if (resourceList->NumberOfInterrupts() < 1) {
        DBGPRINT(("Unknown configuration for wave miniport"));
        return STATUS_DEVICE_CONFIGURATION_ERROR;
    }
    return STATUS_SUCCESS;
}
 
#ifndef WAVERT
NTSTATUS CMiniportWaveCMI::newDMAChannel(PDMACHANNEL *dmaChannel, UInt32 bufferLength)
{
    PAGED_CODE();
    ASSERT(dmaChannel);
    DBGPRINT(("CMiniportWaveCMI[%p]::newDMAChannel(%p)", this, dmaChannel));
 
    NTSTATUS ntStatus;
 
    ntStatus = Port->NewMasterDmaChannel(dmaChannel, NULL, NULL, bufferLength, TRUE, FALSE, (DMA_WIDTH)(-1), (DMA_SPEED)(-1));
    if (NT_SUCCESS(ntStatus)) {
        ULONG  lDMABufferLength = bufferLength;
        do {
            ntStatus = (*dmaChannel)->AllocateBuffer(lDMABufferLength, NULL);
            lDMABufferLength >>= 1;
        } while (!NT_SUCCESS(ntStatus) && (lDMABufferLength > (PAGE_SIZE / 2)));
    }
    return ntStatus;
}
#endif
 
//generic crap
STDMETHODIMP CMiniportWaveCMI::NonDelegatingQueryInterface(REFIID Interface, PVOID *Object)
{
    PAGED_CODE();
    ASSERT(Object);
    DBGPRINT(("CMiniportWaveCMI[%p]::NonDelegatingQueryInterface", this));
 
    if (IsEqualGUIDAligned(Interface,IID_IUnknown)) {
#ifdef WAVERT
        *Object = PVOID(PUNKNOWN(PMINIPORTWAVERT(this)));
#else
        *Object = PVOID(PUNKNOWN(PMINIPORTWAVECYCLIC(this)));
#endif
    } else if (IsEqualGUIDAligned(Interface,IID_IMiniport)) {
        *Object = PVOID(PMINIPORT(this));
#ifdef WAVERT
    } else if (IsEqualGUIDAligned(Interface,IID_IMiniportWaveRT)) {
        *Object = PVOID(PMINIPORTWAVERT(this));
#else
    } else if (IsEqualGUIDAligned(Interface,IID_IMiniportWaveCyclic)) {
        *Object = PVOID(PMINIPORTWAVECYCLIC(this));
#endif
    } else {
        *Object = NULL;
    }
 
    if (*Object) {
        // We reference the interface for the caller.
        PUNKNOWN(*Object)->AddRef();
        return STATUS_SUCCESS;
    }
 
    return STATUS_INVALID_PARAMETER;
}
 
CMiniportWaveCMI::~CMiniportWaveCMI(void)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveCMI[%p]::~CMiniportWaveCMI", this));
 
    storeChannelConfigToRegistry(); //or not. during system shutdown, this doesn't seem to work.
 
    if (CMIAdapter) {
        CMIAdapter->Release();
        CMIAdapter = NULL;
    }
 
    for (int i=0;i<3;i++) {
#ifndef WAVERT
        if (DMAChannel[i]) {
            DMAChannel[i]->Release();
            DMAChannel[i] = NULL;
        }
#endif
    if (isStreamRunning[i]) {
            isStreamRunning[i] = false;
            stream[i]->Release();
            stream[i] = NULL;
        }
    }
 
    if (Port) {
        Port->Release();
        Port = NULL;
    }
}
 
#ifdef WAVERT
STDMETHODIMP CMiniportWaveCMI::Init(PUNKNOWN UnknownAdapter, PRESOURCELIST ResourceList, PPORTWAVERT Port_)
#else
STDMETHODIMP CMiniportWaveCMI::Init(PUNKNOWN UnknownAdapter, PRESOURCELIST ResourceList, PPORTWAVECYCLIC Port_)
#endif
{
    PAGED_CODE();
 
    ASSERT(UnknownAdapter);
    ASSERT(ResourceList);
    ASSERT(Port_);
 
    DBGPRINT(("CMiniportWaveCMI[%p]::Init(%p, %p, %p)", this, UnknownAdapter, ResourceList, Port_));
 
    Port = Port_;
    Port->AddRef();
 
    NTSTATUS ntStatus = UnknownAdapter->QueryInterface(IID_ICMIAdapter, (PVOID *) &CMIAdapter);
    if (!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("QueryInterface(CMIAdapter) failed"));
        return ntStatus;
    }
 
    //check for Vista, set the AC3 stuff accordingly
    if (IoIsWdmVersionAvailable(0x06,0x00)) {
        WavePinDataRangesAC3Stream[1].MinimumSampleFrequency = MIN_SAMPLE_RATE;
        WavePinDataRangesAC3Stream[1].MaximumSampleFrequency = MAX_SAMPLE_RATE;
        WavePinDataRangesAC3Stream[1].DataRange.SubFormat    = KSDATAFORMAT_SUBTYPE_PCM;
        WavePinDataRangesAC3Stream[1].DataRange.Specifier    = KSDATAFORMAT_SPECIFIER_WAVEFORMATEX;
    }
 
    cm = CMIAdapter->getCMI8738Info();
    cm->regFUNCTRL0  = 0;
    cm->WaveMiniport = this;
 
    loadChannelConfigFromRegistry();
 
    for (int i=0;i<3;i++)
    {
        isStreamRunning[i] = false;
 
#ifndef WAVERT
        ntStatus = newDMAChannel(&DMAChannel[i], MAXLEN_DMA_BUFFER);
        if (!NT_SUCCESS(ntStatus)) {
            DBGPRINT(("NewDmaChannel() failed"));
            return ntStatus;
        }
#endif
    }
 
    KeInitializeMutex(&mutex, 1);
 
    return processResources(ResourceList);
}
 
#ifdef WAVERT
STDMETHODIMP_(NTSTATUS) CMiniportWaveCMI::GetDeviceDescription(PDEVICE_DESCRIPTION OutDeviceDescriptor)
{
    PAGED_CODE();
    ASSERT(OutDeviceDescriptor);
    DBGPRINT(("CMiniportWaveCMI[%p]::GetDeviceDescription(%p)", this, OutDeviceDescriptor));
 
    RtlZeroMemory(OutDeviceDescriptor, sizeof(DEVICE_DESCRIPTION));
    OutDeviceDescriptor->ScatterGather     = false;
    OutDeviceDescriptor->Master            = true;
    OutDeviceDescriptor->Dma32BitAddresses = true;
    OutDeviceDescriptor->InterfaceType     = PCIBus;
    OutDeviceDescriptor->MaximumLength     = MAXLEN_DMA_BUFFER-2;
 
    return STATUS_SUCCESS;
}
#endif
 
STDMETHODIMP CMiniportWaveCMI::GetDescription(PPCFILTER_DESCRIPTOR *OutFilterDescriptor)
{
    PAGED_CODE();
    ASSERT(OutFilterDescriptor);
    DBGPRINT(("CMiniportWaveCMI[%p]::GetDescription(%p)", this, OutFilterDescriptor));
 
    *OutFilterDescriptor = &WaveMiniportFilterDescriptor;
 
    return STATUS_SUCCESS;
}
 
NTSTATUS CMiniportWaveCMI::loadChannelConfigFromRegistry()
{
    PAGED_CODE();
    PREGISTRYKEY       DriverKey;
    PREGISTRYKEY       SettingsKey;
    UNICODE_STRING     KeyName;
    DWORD              ResultLength;
    PVOID              KeyInfo;
 
    DBGPRINT(("CMiniportWaveCMI::loadChannelConfigFromRegistry()"));
 
    if ((!CMIAdapter) || (!(CMIAdapter->getDeviceObject()))) {
        return STATUS_UNSUCCESSFUL;
    }
 
    NTSTATUS ntStatus = PcNewRegistryKey(&DriverKey, NULL, DriverRegistryKey, KEY_ALL_ACCESS, CMIAdapter->getDeviceObject(), NULL, NULL, 0, NULL);
 
    if(!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("PcNewRegistryKey() failed"));
        return STATUS_UNSUCCESSFUL;
    }
 
    RtlInitUnicodeString(&KeyName, L"Settings");
 
    ntStatus = DriverKey->NewSubKey(&SettingsKey, NULL, KEY_ALL_ACCESS, &KeyName, REG_OPTION_NON_VOLATILE, NULL);
    if(!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("DriverKey->NewSubKey() failed"));
        return STATUS_UNSUCCESSFUL;
    }
 
    KeyInfo = ExAllocatePoolWithTag(PagedPool, sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(DWORD), 'gnaa');
    if (KeyInfo) {
        RtlInitUnicodeString(&KeyName, L"ChannelCount");
        ntStatus = SettingsKey->QueryValueKey(&KeyName, KeyValuePartialInformation, KeyInfo, sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(DWORD), &ResultLength);
        if (NT_SUCCESS (ntStatus)) {
            PKEY_VALUE_PARTIAL_INFORMATION PartialInfo = (PKEY_VALUE_PARTIAL_INFORMATION)KeyInfo;
            if (PartialInfo->DataLength == sizeof(DWORD)) {
                requestedChannelCount = (*(PLONG)PartialInfo->Data);
            }
        } else {
            requestedChannelCount = 2;
        }
 
        RtlInitUnicodeString(&KeyName, L"ChannelMask");
        ntStatus = SettingsKey->QueryValueKey(&KeyName, KeyValuePartialInformation, KeyInfo, sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(DWORD), &ResultLength);
        if (NT_SUCCESS (ntStatus)) {
            PKEY_VALUE_PARTIAL_INFORMATION PartialInfo = (PKEY_VALUE_PARTIAL_INFORMATION)KeyInfo;
            if (PartialInfo->DataLength == sizeof(DWORD)) {
                requestedChannelMask = (*(PLONG)PartialInfo->Data);
            }
        } else {
            requestedChannelMask = KSAUDIO_SPEAKER_STEREO;
        }
    }
    ExFreePoolWithTag(KeyInfo,'gnaa');
 
    SettingsKey->Release();
    DriverKey->Release();
 
    return STATUS_SUCCESS;
}
 
NTSTATUS CMiniportWaveCMI::storeChannelConfigToRegistry()
{
    PAGED_CODE();
    PREGISTRYKEY       DriverKey;
    PREGISTRYKEY       SettingsKey;
    UNICODE_STRING     KeyName;
    DWORD              Value;
    DBGPRINT(("CMiniportWaveCMI::storeChannelConfigToRegistry()"));
 
    if ((!CMIAdapter) || (!(CMIAdapter->getDeviceObject()))) {
        return STATUS_UNSUCCESSFUL;
    }
 
    NTSTATUS ntStatus = PcNewRegistryKey(&DriverKey, NULL, DriverRegistryKey, KEY_ALL_ACCESS, CMIAdapter->getDeviceObject(), NULL, NULL, 0, NULL);
 
    if(!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("PcNewRegistryKey() failed"));
        return STATUS_UNSUCCESSFUL;
    }
 
    RtlInitUnicodeString(&KeyName, L"Settings");
 
    ntStatus = DriverKey->NewSubKey(&SettingsKey, NULL, KEY_ALL_ACCESS, &KeyName, REG_OPTION_NON_VOLATILE, NULL);
    if(!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("DriverKey->NewSubKey() failed"));
        return STATUS_UNSUCCESSFUL;
    }
 
    Value = requestedChannelCount;
    RtlInitUnicodeString(&KeyName, L"ChannelCount");
    ntStatus = SettingsKey->SetValueKey(&KeyName, REG_DWORD, PVOID(&Value), sizeof(DWORD));
    if (!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("SetValueKey() failed"));
    }
    Value = requestedChannelMask;
    RtlInitUnicodeString(&KeyName, L"ChannelMask");
    ntStatus = SettingsKey->SetValueKey(&KeyName, REG_DWORD, PVOID(&Value), sizeof(DWORD));
    if (!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("SetValueKey() failed"));
    }
 
    SettingsKey->Release();
    DriverKey->Release();
 
    return STATUS_SUCCESS;
}
 
 
STDMETHODIMP_(void) CMiniportWaveCMI::powerUp(void)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveCMI[%p]::powerUp()", this));
    KSSTATE oldState[3];
 
    for (int i=0;i<3;i++) {
        if (isStreamRunning[i]) {
            oldState[i] = stream[i]->state;
            stream[i]->SetState(KSSTATE_STOP);
        }
    }
 
    if (cm->TopoMiniport) {
        cm->TopoMiniport->loadMixerSettingsFromMemory();
    }
 
    for (int i=0;i<3;i++) {
        if (isStreamRunning[i]) {
            stream[i]->prepareStream();
            stream[i]->SetState(KSSTATE_ACQUIRE);
            stream[i]->SetState(oldState[i]);
        }
    }
}
 
STDMETHODIMP_(void) CMiniportWaveCMI::powerDown(void)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveCMI[%p]::powerDown()", this));
 
    if (cm->TopoMiniport) {
        cm->TopoMiniport->storeMixerSettingsToMemory();
    }
 
}
 
 
NTSTATUS CMiniportWaveCMI::isFormatAllowed(UInt32 sampleRate, BOOLEAN multiChan, BOOLEAN AC3)
{
    PAGED_CODE();
    ASSERT(sampleRate);
    DBGPRINT(("CMiniportWaveCMI[%p]::isFormatAllowed(%d, %d, %d)", this, sampleRate, multiChan, AC3));
 
    if (multiChan) {
        switch (sampleRate) {
            case 44100: if (cm->formatMask & FMT_441_MULTI_PCM) return STATUS_SUCCESS; break;
            case 48000: if (cm->formatMask & FMT_480_MULTI_PCM) return STATUS_SUCCESS; break;
            case 88200: if (cm->formatMask & FMT_882_MULTI_PCM) return STATUS_SUCCESS; break;
            case 96000: if (cm->formatMask & FMT_960_MULTI_PCM) return STATUS_SUCCESS; break;
        }
        return STATUS_INVALID_PARAMETER;
    }
    if (AC3) {
        switch (sampleRate) {
            case 44100: if (cm->formatMask & FMT_441_DOLBY) return STATUS_SUCCESS; break;
            case 48000: if (cm->formatMask & FMT_480_DOLBY) return STATUS_SUCCESS; break;
            case 88200: if (cm->formatMask & FMT_882_DOLBY) return STATUS_SUCCESS; break;
            case 96000: if (cm->formatMask & FMT_960_DOLBY) return STATUS_SUCCESS; break;
        }
        return STATUS_INVALID_PARAMETER;
    }
    switch (sampleRate) {
        case 44100: if (cm->formatMask & FMT_441_PCM) return STATUS_SUCCESS; break;
        case 48000: if (cm->formatMask & FMT_480_PCM) return STATUS_SUCCESS; break;
        case 88200: if (cm->formatMask & FMT_882_PCM) return STATUS_SUCCESS; break;
        case 96000: if (cm->formatMask & FMT_960_PCM) return STATUS_SUCCESS; break;
    }
    return STATUS_INVALID_PARAMETER;
}
 
NTSTATUS CMiniportWaveCMI::validateFormat(PKSDATAFORMAT format, ULONG PinID, BOOLEAN capture)
{
    PAGED_CODE();
    ASSERT(format);
    DBGPRINT(("CMiniportWaveCMI[%p]::validateFormat(%p, %d, %d)", this, format, PinID, capture));
 
    PWAVEFORMATEX waveFormat = PWAVEFORMATEX(format + 1);
    DBGPRINT(("---channels: %d, resolution: %d, sample rate: %d, pin: %d, formatMask: %x", waveFormat->nChannels, waveFormat->wBitsPerSample, waveFormat->nSamplesPerSec, PinID, cm->formatMask));
 
//WaveFormatEx
    if  ( ( format->FormatSize >= sizeof(KSDATAFORMAT_WAVEFORMATEX))
      && IsEqualGUIDAligned(format->MajorFormat,KSDATAFORMAT_TYPE_AUDIO)
      && IsEqualGUIDAligned(format->Specifier,KSDATAFORMAT_SPECIFIER_WAVEFORMATEX) ) {
        switch (EXTRACT_WAVEFORMATEX_ID(&format->SubFormat)) {
            case WAVE_FORMAT_PCM:
                if ((PinID != PIN_WAVE_RENDER_SINK) && (PinID != PIN_WAVE_CAPTURE_SOURCE) && (PinID != ((ULONG)-1))) {
                    if ((PinID == PIN_WAVE_AC3_RENDER_SINK) && !IoIsWdmVersionAvailable(6,0)) {
                        return STATUS_INVALID_PARAMETER;
                    }
                }
 
                if ( ((waveFormat->wBitsPerSample == 16) || (waveFormat->wBitsPerSample == 32))
                  && ((waveFormat->nSamplesPerSec == 44100) || (waveFormat->nSamplesPerSec == 48000) || (waveFormat->nSamplesPerSec == 88200) ||  (waveFormat->nSamplesPerSec == 96000))
                  && (waveFormat->nChannels == 2) ) {
                    if ((capture) && (waveFormat->nSamplesPerSec > 48000) ) {
                        return STATUS_INVALID_PARAMETER;
                    }
                    return isFormatAllowed(waveFormat->nSamplesPerSec, FALSE, FALSE);
                }
                if ( (waveFormat->wBitsPerSample == 16)
                  && ((waveFormat->nChannels >= 4) && (waveFormat->nChannels <= cm->maxChannels))
                  && ((waveFormat->nSamplesPerSec == 44100) || (waveFormat->nSamplesPerSec == 48000)) ) {
#if OUT_CHANNEL == 1
                    if ((PinID == PIN_WAVE_RENDER_SINK) || (PinID == ((ULONG)-1))) {
                        return isFormatAllowed(waveFormat->nSamplesPerSec, TRUE, FALSE);
                    }
#else
                    return STATUS_INVALID_PARAMETER;
#endif
                }
                break;
            case WAVE_FORMAT_DOLBY_AC3_SPDIF:
                if ((PinID != PIN_WAVE_AC3_RENDER_SINK) && (PinID != ((ULONG)-1))) {
                    return STATUS_INVALID_PARAMETER;
                }
                if ( ((waveFormat->wBitsPerSample >= MIN_BITS_PER_SAMPLE_AC3) && (waveFormat->wBitsPerSample <= MAX_BITS_PER_SAMPLE_AC3))
                  && ((waveFormat->nSamplesPerSec >= MIN_SAMPLE_RATE_AC3) && (waveFormat->nSamplesPerSec <= MAX_SAMPLE_RATE_AC3))
                  && (waveFormat->nChannels == MAX_CHANNELS_AC3) ) {
                    return isFormatAllowed(waveFormat->nSamplesPerSec, FALSE, TRUE);
                }
                break;
            case WAVE_FORMAT_WMA_SPDIF:
                if ((PinID != PIN_WAVE_AC3_RENDER_SINK) && (PinID != ((ULONG)-1))) {
                    return STATUS_INVALID_PARAMETER;
                }
                if ( ((waveFormat->wBitsPerSample >= MIN_BITS_PER_SAMPLE_WMA) && (waveFormat->wBitsPerSample <= MAX_BITS_PER_SAMPLE_WMA))
                  && ((waveFormat->nSamplesPerSec >= MIN_SAMPLE_RATE_WMA) && (waveFormat->nSamplesPerSec <= MAX_SAMPLE_RATE_WMA))
                  && (waveFormat->nChannels == MAX_CHANNELS_WMA) ) {
                    return isFormatAllowed(waveFormat->nSamplesPerSec, FALSE, TRUE);
                }
                break;
        }
    }
 
    return STATUS_INVALID_PARAMETER;
}
 
// Tests a data range intersection
STDMETHODIMP CMiniportWaveCMI::DataRangeIntersection(ULONG PinId, PKSDATARANGE ClientDataRange, PKSDATARANGE MyDataRange, ULONG OutputBufferLength, PVOID ResultantFormat, PULONG ResultantFormatLength)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveCMI[%p]::DataRangeIntersection(%d, %p, %p, %d, %p, %p)", this, PinId, ClientDataRange, MyDataRange, OutputBufferLength, ResultantFormat, ResultantFormatLength));
 
    if (PinId == PIN_WAVE_AC3_RENDER_SINK) {
        bool isAC3Pin = true;
        // Under Windows 2000 and XP, the client's DataRange should be AC3 only.
        // The AC3 pin is the SPDIF pin in Windows Vista, so 2ch stereo is going to be allowed.
 
        if (!IsEqualGUIDAligned(ClientDataRange->MajorFormat, KSDATAFORMAT_TYPE_AUDIO)
          && !IsEqualGUIDAligned(ClientDataRange->MajorFormat, KSDATAFORMAT_TYPE_WILDCARD)) {
            return STATUS_NO_MATCH;
        }
 
 
        if (!IsEqualGUIDAligned(ClientDataRange->SubFormat, KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF)
          && !IsEqualGUIDAligned(ClientDataRange->SubFormat, KSDATAFORMAT_SUBTYPE_WMA_SPDIF)
          && !IsEqualGUIDAligned(ClientDataRange->SubFormat, KSDATAFORMAT_SUBTYPE_WILDCARD)) {
            // check for Vista
            isAC3Pin = false;
            if (IoIsWdmVersionAvailable(0x06,0x00)) {
                if (!IsEqualGUIDAligned(ClientDataRange->SubFormat, KSDATAFORMAT_SUBTYPE_PCM)
                  && !IsEqualGUIDAligned(ClientDataRange->SubFormat, KSDATAFORMAT_SUBTYPE_WILDCARD)) {
                    return STATUS_NO_MATCH;
                }
            } else {
                return STATUS_NO_MATCH;
            }
        }
 
        if (IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_WAVEFORMATEX)
         || IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_WILDCARD)) {
            *ResultantFormatLength = sizeof(KSDATAFORMAT_WAVEFORMATEX);
        } else
        if (IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_DSOUND)) {
            *ResultantFormatLength = sizeof(KSDATAFORMAT_DSOUND);
        } else {
            return STATUS_NO_MATCH;
        }
 
        // Validate return buffer size, if the request is only for the
        // size of the resultant structure, return it now.
        if (!OutputBufferLength) {
            *ResultantFormatLength = sizeof(KSDATAFORMAT_WAVEFORMATEX);
            return STATUS_BUFFER_OVERFLOW;
        } else
        if (OutputBufferLength < sizeof(KSDATAFORMAT_WAVEFORMATEX)) {
            return STATUS_BUFFER_TOO_SMALL;
        }
 
        PKSDATAFORMAT_WAVEFORMATEX  resultantFormatWFX = (PKSDATAFORMAT_WAVEFORMATEX) ResultantFormat;
        PWAVEFORMATEX               pWaveFormatEx;
 
        // Return the best (only) available format.
        resultantFormatWFX->DataFormat.FormatSize = *ResultantFormatLength;
        resultantFormatWFX->DataFormat.Flags      = 0;
        resultantFormatWFX->DataFormat.SampleSize = 4; // must match nBlockAlign
        resultantFormatWFX->DataFormat.Reserved   = 0;
 
        resultantFormatWFX->DataFormat.MajorFormat  = KSDATAFORMAT_TYPE_AUDIO;
        INIT_WAVEFORMATEX_GUID(&resultantFormatWFX->DataFormat.SubFormat, WAVE_FORMAT_DOLBY_AC3_SPDIF);
 
        // Extra space for the DSound specifier
        if (IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_DSOUND)) {
 
            PKSDATAFORMAT_DSOUND  resultantFormatDSound = (PKSDATAFORMAT_DSOUND)ResultantFormat;
 
            resultantFormatDSound->DataFormat.Specifier = KSDATAFORMAT_SPECIFIER_DSOUND;
 
            // DSound format capabilities are not expressed
            // this way in KS, so we express no capabilities.
            resultantFormatDSound->BufferDesc.Flags   = 0 ;
            resultantFormatDSound->BufferDesc.Control = 0 ;
 
            pWaveFormatEx = &resultantFormatDSound->BufferDesc.WaveFormatEx;
        } else {
        // WAVEFORMATEX or WILDCARD (WAVEFORMATEX)
            resultantFormatWFX->DataFormat.Specifier = KSDATAFORMAT_SPECIFIER_WAVEFORMATEX;
 
            pWaveFormatEx = (PWAVEFORMATEX)((PKSDATAFORMAT)resultantFormatWFX + 1);
        }
 
        pWaveFormatEx->nChannels       = 2;
        pWaveFormatEx->wBitsPerSample  = 16; // SPDIF
        pWaveFormatEx->cbSize          = 0;
        if (isAC3Pin) {
            if (IsEqualGUIDAligned(ClientDataRange->SubFormat, KSDATAFORMAT_SUBTYPE_WMA_SPDIF)) {
                pWaveFormatEx->wFormatTag      = WAVE_FORMAT_WMA_SPDIF;
                pWaveFormatEx->nSamplesPerSec  = min( ((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumSampleFrequency, MAX_SAMPLE_RATE_WMA);
            } else {
                pWaveFormatEx->wFormatTag      = WAVE_FORMAT_DOLBY_AC3_SPDIF;
                pWaveFormatEx->nSamplesPerSec  = 48000;
            }
        } else {
            pWaveFormatEx->wFormatTag      = WAVE_FORMAT_PCM;
            pWaveFormatEx->nSamplesPerSec  = min( ((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumSampleFrequency, MAX_SAMPLE_RATE);
        }
        pWaveFormatEx->nBlockAlign     = pWaveFormatEx->nChannels * pWaveFormatEx->wBitsPerSample / 8;
        pWaveFormatEx->nAvgBytesPerSec = pWaveFormatEx->nSamplesPerSec * pWaveFormatEx->nBlockAlign;
 
        return STATUS_SUCCESS;
    }
    if ((PinId == PIN_WAVE_RENDER_SINK) || (PinId == PIN_WAVE_CAPTURE_SINK)) {
 
        if (!IsEqualGUIDAligned(ClientDataRange->SubFormat, KSDATAFORMAT_SUBTYPE_PCM) &&
            !IsEqualGUIDAligned(ClientDataRange->SubFormat, KSDATAFORMAT_SUBTYPE_WILDCARD)) {
            return STATUS_NO_MATCH;
        }
 
        if (!IsEqualGUIDAligned(ClientDataRange->MajorFormat, KSDATAFORMAT_TYPE_AUDIO) &&
            !IsEqualGUIDAligned(ClientDataRange->MajorFormat, KSDATAFORMAT_TYPE_WILDCARD)) {
            return STATUS_NO_MATCH;
        }
 
        if (IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_WAVEFORMATEX) ||
          IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_WILDCARD)) {
            *ResultantFormatLength = sizeof(KSDATAFORMAT_WAVEFORMATEX);
        } else
        if (IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_DSOUND)) {
            *ResultantFormatLength = sizeof(KSDATAFORMAT_DSOUND);
        } else {
            return STATUS_NO_MATCH;
        }
 
 
        ULONG sampleRate   = 0;
        ULONG nMaxChannels = min(((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumChannels, requestedChannelCount);
 
        // check for Vista
        if (IoIsWdmVersionAvailable(6,0) && (PinId == PIN_WAVE_RENDER_SINK)) {
            nMaxChannels = ((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumChannels;
        }
        if (nMaxChannels & 0x01) {
            nMaxChannels--;
        }
        if (!nMaxChannels) {
            return STATUS_NO_MATCH;
        }
 
        if (isStreamRunning[PCM_OUT_STREAM]) {
            sampleRate = stream[PCM_OUT_STREAM]->currentSampleRate;
        } else
        if (isStreamRunning[PCM_IN_STREAM]) {
            sampleRate = stream[PCM_IN_STREAM]->currentSampleRate;
        }
        if (sampleRate == 0) {
            if ((nMaxChannels > 2) && (((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumSampleFrequency > MAX_SAMPLE_RATE_MULTI)) {
                sampleRate = MAX_SAMPLE_RATE_MULTI;
            } else
            if ((nMaxChannels == 2) && (((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumSampleFrequency > MAX_SAMPLE_RATE)) {
                sampleRate = MAX_SAMPLE_RATE;
            } else {
                sampleRate = ((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumSampleFrequency;
            }
        }
 
        if ((((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumSampleFrequency < sampleRate)
          || (((PKSDATARANGE_AUDIO)ClientDataRange)->MinimumSampleFrequency > sampleRate)) {
            return STATUS_NO_MATCH;
        }
 
        if (PinId == PIN_WAVE_RENDER_SINK) {
            if (!OutputBufferLength) {
                *ResultantFormatLength = sizeof(KSDATAFORMAT) + sizeof(WAVEFORMATPCMEX);
                return STATUS_BUFFER_OVERFLOW;
            } else
            if (OutputBufferLength < sizeof(KSDATAFORMAT) + sizeof(WAVEFORMATPCMEX)) {
                return STATUS_BUFFER_TOO_SMALL;
            }
 
            if (((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumChannels < 2) {
                DBGPRINT(("[[DataRangeIntersection] mono format not supported"));
                return STATUS_NO_MATCH;
            }
 
            PWAVEFORMATPCMEX WaveFormat = (PWAVEFORMATPCMEX)((PKSDATAFORMAT)ResultantFormat + 1);
            if (IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_DSOUND)) {
                return STATUS_NOT_SUPPORTED;
            }
            *(PKSDATAFORMAT)ResultantFormat = *MyDataRange;
            ((PKSDATAFORMAT)ResultantFormat)->FormatSize = sizeof(KSDATAFORMAT) + sizeof(WAVEFORMATPCMEX);
 
 
            WaveFormat->Format.wFormatTag      = WAVE_FORMAT_EXTENSIBLE;
            WaveFormat->SubFormat              = KSDATAFORMAT_SUBTYPE_PCM;
            WaveFormat->Format.nChannels       = (WORD)nMaxChannels;
            WaveFormat->Format.wBitsPerSample  = 16;
            WaveFormat->Format.nBlockAlign     = (WaveFormat->Format.wBitsPerSample >> 3) * WaveFormat->Format.nChannels;
            WaveFormat->Format.nAvgBytesPerSec = WaveFormat->Format.nSamplesPerSec * WaveFormat->Format.nBlockAlign;
            WaveFormat->Format.cbSize          = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
            WaveFormat->Format.nSamplesPerSec  = sampleRate;
            WaveFormat->Samples.wValidBitsPerSample = WaveFormat->Format.wBitsPerSample;
            switch (nMaxChannels) {
                case 8: WaveFormat->dwChannelMask = KSAUDIO_SPEAKER_7POINT1; break;
                case 6: WaveFormat->dwChannelMask = KSAUDIO_SPEAKER_5POINT1; break;
                case 4: WaveFormat->dwChannelMask = KSAUDIO_SPEAKER_QUAD;    break;
                case 2: WaveFormat->dwChannelMask = KSAUDIO_SPEAKER_STEREO;  break;
            }
            if (nMaxChannels == requestedChannelCount) {
                WaveFormat->dwChannelMask = requestedChannelMask;
            }
            ((PKSDATAFORMAT)ResultantFormat)->SampleSize = WaveFormat->Format.nBlockAlign;
 
            *ResultantFormatLength = sizeof(KSDATAFORMAT) + sizeof(WAVEFORMATPCMEX);
            DBGPRINT(("[DataRangeIntersection] MultiChannel Renderer: SampleRate: %d, ClientDataRange->MaxChans: %d, Channels: %d, BitPerSample: %d, BlockAlign: %d, AvgBytesPerSec: %d, ChannelMask: %08X", WaveFormat->Format.nSamplesPerSec, ((PKSDATARANGE_AUDIO)ClientDataRange)->MaximumChannels, WaveFormat->Format.nChannels, WaveFormat->Format.wBitsPerSample, WaveFormat->Format.nBlockAlign, WaveFormat->Format.nAvgBytesPerSec, WaveFormat->dwChannelMask));
        } else
        if (PinId == PIN_WAVE_CAPTURE_SINK) {
            PKSDATAFORMAT_WAVEFORMATEX  resultantFormatWFX;
            PWAVEFORMATEX               pWaveFormatEx;
 
            if (!OutputBufferLength) {
                *ResultantFormatLength = sizeof(KSDATAFORMAT_WAVEFORMATEX);
                return STATUS_BUFFER_OVERFLOW;
            } else
            if (OutputBufferLength < sizeof(KSDATAFORMAT_WAVEFORMATEX)) {
                return STATUS_BUFFER_TOO_SMALL;
            }
 
            if (nMaxChannels > 2) {
                nMaxChannels = 2;
            }
 
            resultantFormatWFX = (PKSDATAFORMAT_WAVEFORMATEX) ResultantFormat;
            resultantFormatWFX->DataFormat.FormatSize   = *ResultantFormatLength;
            resultantFormatWFX->DataFormat.Flags        = 0;
            resultantFormatWFX->DataFormat.SampleSize   = 4;
            resultantFormatWFX->DataFormat.Reserved     = 0;
            resultantFormatWFX->DataFormat.MajorFormat  = KSDATAFORMAT_TYPE_AUDIO;
            INIT_WAVEFORMATEX_GUID(&resultantFormatWFX->DataFormat.SubFormat, WAVE_FORMAT_PCM);
 
            if (IsEqualGUIDAligned(ClientDataRange->Specifier, KSDATAFORMAT_SPECIFIER_DSOUND)) {
                PKSDATAFORMAT_DSOUND resultantFormatDSound;
                resultantFormatDSound = (PKSDATAFORMAT_DSOUND)ResultantFormat;
                resultantFormatDSound->DataFormat.Specifier = KSDATAFORMAT_SPECIFIER_DSOUND;
                resultantFormatDSound->BufferDesc.Flags   = 0 ;
                resultantFormatDSound->BufferDesc.Control = 0 ;
                pWaveFormatEx = &resultantFormatDSound->BufferDesc.WaveFormatEx;
            } else {
                resultantFormatWFX->DataFormat.Specifier = KSDATAFORMAT_SPECIFIER_WAVEFORMATEX;
                pWaveFormatEx = (PWAVEFORMATEX)((PKSDATAFORMAT)resultantFormatWFX + 1);
            }
            pWaveFormatEx->wFormatTag      = WAVE_FORMAT_PCM;
            pWaveFormatEx->nChannels       = nMaxChannels;
            pWaveFormatEx->nSamplesPerSec  = sampleRate;
            pWaveFormatEx->wBitsPerSample  = 16;
            pWaveFormatEx->cbSize          = 0;
            pWaveFormatEx->nBlockAlign     = 4;
            pWaveFormatEx->nAvgBytesPerSec = 192000;
        }
        return STATUS_SUCCESS;
    }
    return STATUS_NO_MATCH;
}
 
//from IMiniportWaveCyclic::NewStream()
#ifdef WAVERT
STDMETHODIMP CMiniportWaveCMI::NewStream(PMINIPORTWAVERTSTREAM *OutStream, PPORTWAVERTSTREAM OuterUnknown, ULONG PinID, BOOLEAN Capture, PKSDATAFORMAT DataFormat)
#else
STDMETHODIMP CMiniportWaveCMI::NewStream(PMINIPORTWAVECYCLICSTREAM *OutStream, PUNKNOWN OuterUnknown, POOL_TYPE PoolType, ULONG PinID, BOOLEAN Capture, PKSDATAFORMAT DataFormat, PDMACHANNEL* OutDmaChannel, PSERVICEGROUP* OutServiceGroup)
#endif
{
    PAGED_CODE();
    ASSERT(OutStream);
    ASSERT(DataFormat);
#ifdef WAVERT
    DBGPRINT(("CMiniportWaveCMI[%p]::NewStream(%p, %p, %d, %d, %p)", this, OutStream, OuterUnknown, PinID, Capture, DataFormat));
#else
    ASSERT(OutDmaChannel);
    ASSERT(OutServiceGroup);
    DBGPRINT(("CMiniportWaveCMI[%p]::NewStream(%p, %p, %p, %d, %d, %p, %p, %p)", this, OutStream, OuterUnknown, PoolType, PinID, Capture, DataFormat, OutDmaChannel, OutServiceGroup));
#endif
 
    NTSTATUS      ntStatus    = STATUS_SUCCESS;
    PWAVEFORMATEX waveFormat  = PWAVEFORMATEX(DataFormat + 1);
    UInt32        streamIndex = PCM_OUT_STREAM;
 
    ntStatus = validateFormat(DataFormat, PinID, Capture);
    if (!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("invalid stream format"));
        return STATUS_UNSUCCESSFUL;
    }
    if (cm->enableSPDIFInMonitor) {
        CMIAdapter->setUInt8Bit(REG_MIXER1, EN_SPDI2DAC);
    }
 
    if (Capture) {
        streamIndex = PCM_IN_STREAM;
    } else
    if ( (WAVE_FORMAT_DOLBY_AC3_SPDIF == EXTRACT_WAVEFORMATEX_ID(&DataFormat->SubFormat)) || (WAVE_FORMAT_WMA_SPDIF == EXTRACT_WAVEFORMATEX_ID(&DataFormat->SubFormat))) {
        streamIndex = AC3_OUT_STREAM;
    }
 
    // make sure the hardware is not already in use
    if (isStreamRunning[streamIndex]) {
        DBGPRINT(("Stream %d running, exiting...", streamIndex));
        return STATUS_UNSUCCESSFUL;
    }
    if ((streamIndex == AC3_OUT_STREAM) && isStreamRunning[PCM_OUT_STREAM]) {
#ifdef WAVERT
        stream[PCM_OUT_STREAM]->SetState(KSSTATE_STOP);
#else
        stream[PCM_OUT_STREAM]->SetState(KSSTATE_STOP_AC3);
#endif
    }
    if ((streamIndex == PCM_OUT_STREAM) && isStreamRunning[AC3_OUT_STREAM]) {
        return STATUS_UNSUCCESSFUL;
    }
 
    DBGPRINT(("---StreamNo: %d, Bits: %d, Sample Rate: %d, Channels: %d, AC3: %d", streamIndex,
        waveFormat->wBitsPerSample, waveFormat->nSamplesPerSec, waveFormat->nChannels,
        (WAVE_FORMAT_DOLBY_AC3_SPDIF == EXTRACT_WAVEFORMATEX_ID(&DataFormat->SubFormat)) || (WAVE_FORMAT_WMA_SPDIF == EXTRACT_WAVEFORMATEX_ID(&DataFormat->SubFormat)) ));
 
    // the DAC and ADC can only run at the same sample rate simultaneously
    if ((streamIndex == PCM_IN_STREAM) && isStreamRunning[PCM_OUT_STREAM]) {
        if (waveFormat->nSamplesPerSec != stream[PCM_OUT_STREAM]->currentSampleRate) {
            return STATUS_UNSUCCESSFUL;
        }
    }
    if ((streamIndex == PCM_OUT_STREAM) && isStreamRunning[PCM_IN_STREAM]) {
        if (waveFormat->nSamplesPerSec != stream[PCM_IN_STREAM]->currentSampleRate) {
            return STATUS_UNSUCCESSFUL;
        }
    }
 
    // instantiate a stream
#ifdef WAVERT
    ntStatus = CreateMiniportWaveStreamCMI(&stream[streamIndex], OuterUnknown, NonPagedPool);
#else
    ntStatus = CreateMiniportWaveStreamCMI(&stream[streamIndex], OuterUnknown, PoolType);
#endif
    if (!NT_SUCCESS (ntStatus)) {
        DBGPRINT(("Failed to create stream"));
        return ntStatus;
    }
 
    // initialize it
#ifdef WAVERT
    ntStatus = stream[streamIndex]->Init(this, streamIndex, Capture, DataFormat, OuterUnknown);
#else
    ntStatus = stream[streamIndex]->Init(this, streamIndex, Capture, DataFormat, DMAChannel[streamIndex], OutServiceGroup);
#endif
    if (!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("Failed to init stream"));
        stream[streamIndex]->Release();
        stream[streamIndex] = NULL;
        *OutStream          = NULL;
#ifndef WAVERT
        *OutServiceGroup    = NULL;
        *OutDmaChannel      = NULL;
#endif
        return ntStatus;
    }
 
#ifdef WAVERT
//this has been referenced in CreateMiniportWaveStreamCMI() already
    *OutStream = (PMINIPORTWAVERTSTREAM)stream[streamIndex];
#else
    *OutDmaChannel = DMAChannel[streamIndex];
    DMAChannel[streamIndex]->AddRef();
    *OutStream = (PMINIPORTWAVECYCLICSTREAM)stream[streamIndex];
#endif
 
    return ntStatus;
}
 
NTSTATUS NTAPI PropertyHandler_ChannelConfig(PPCPROPERTY_REQUEST PropertyRequest)
{
    PAGED_CODE();
    ASSERT(PropertyRequest);
    DBGPRINT(("[PropertyHandler_ChannelConfig]"));
 
#ifdef WAVERT
    CMiniportWaveCMI *that = (CMiniportWaveCMI *) ((PMINIPORTWAVERT)PropertyRequest->MajorTarget);
#else
    CMiniportWaveCMI *that = (CMiniportWaveCMI *) ((PMINIPORTWAVECYCLIC)PropertyRequest->MajorTarget);
#endif
 
    if (PropertyRequest->Node == KSNODE_WAVE_DAC) {
 
        if (PropertyRequest->ValueSize == 0) {
            PropertyRequest->ValueSize = sizeof(LONG);
            return STATUS_BUFFER_OVERFLOW;
        } else if (PropertyRequest->ValueSize < sizeof (LONG)) {
            PropertyRequest->ValueSize = 0;
            return STATUS_BUFFER_TOO_SMALL;
        }
 
        if (PropertyRequest->Verb & KSPROPERTY_TYPE_GET) {
            *(PLONG)PropertyRequest->Value = that->requestedChannelMask;
            PropertyRequest->ValueSize = sizeof(ULONG);
            return STATUS_SUCCESS;
        } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_SET) {
            if (*(PLONG)PropertyRequest->Value == KSAUDIO_SPEAKER_7POINT1) {
                that->requestedChannelMask =  *(PLONG)PropertyRequest->Value;
                that->requestedChannelCount = 8;
                return STATUS_SUCCESS;
            }
            if (*(PLONG)PropertyRequest->Value == KSAUDIO_SPEAKER_5POINT1) {
                that->requestedChannelMask =  *(PLONG)PropertyRequest->Value;
                that->requestedChannelCount = 6;
                return STATUS_SUCCESS;
            }
            if ((*(PLONG)PropertyRequest->Value == KSAUDIO_SPEAKER_QUAD) || (*(PLONG)PropertyRequest->Value == KSAUDIO_SPEAKER_SURROUND)) {
                that->requestedChannelMask =  *(PLONG)PropertyRequest->Value;
                that->requestedChannelCount = 4;
                return STATUS_SUCCESS;
            }
            if (*(PLONG)PropertyRequest->Value == KSAUDIO_SPEAKER_STEREO) {
                that->requestedChannelMask =  *(PLONG)PropertyRequest->Value;
                that->requestedChannelCount = 2;
                return STATUS_SUCCESS;
            }
        } else if (PropertyRequest->Verb & KSPROPERTY_TYPE_BASICSUPPORT) {
            PULONG AccessFlags = PULONG(PropertyRequest->Value);
            *AccessFlags = KSPROPERTY_TYPE_BASICSUPPORT | KSPROPERTY_TYPE_GET | KSPROPERTY_TYPE_SET;
            PropertyRequest->ValueSize = sizeof(ULONG);
            return STATUS_SUCCESS;
        }
    }
    return STATUS_INVALID_PARAMETER;
}
 
 
NTSTATUS CreateMiniportWaveStreamCMI(CMiniportWaveStreamCMI  **MiniportWaveStreamCMI, PUNKNOWN pUnknownOuter, POOL_TYPE PoolType)
{
    PAGED_CODE();
    DBGPRINT(("CreateMiniportWaveStreamCMI"));
 
#ifdef WAVERT
    *MiniportWaveStreamCMI = new (PoolType, 'gnaa') CMiniportWaveStreamCMI(NULL);
#else
    *MiniportWaveStreamCMI = new (PoolType, 'gnaa') CMiniportWaveStreamCMI(pUnknownOuter);
#endif
    if (*MiniportWaveStreamCMI) {
        (*MiniportWaveStreamCMI)->AddRef();
        return STATUS_SUCCESS;
    }
 
    return STATUS_INSUFFICIENT_RESOURCES;
}
 
NTSTATUS CMiniportWaveStreamCMI::prepareStream()
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::prepareStream()", this));
    DBGPRINT(("---streamIndex: %d, channelNumber: %d", streamIndex, channelNumber));
 
    NTSTATUS ntStatus;
    UInt32   val;
 
    if (state == KSSTATE_RUN) {
        return STATUS_INVALID_DEVICE_REQUEST;
    }
 
    if (!(Miniport->cm)) {
        DBGPRINT(("Miniport not set"));
        return STATUS_INVALID_DEVICE_REQUEST;
    }
 
    enableSPDIF = ((currentSampleRate == 44100 || currentSampleRate == 48000 || currentSampleRate == 88200 || currentSampleRate == 96000) &&
                   ((currentResolution == 16) || (currentResolution == 32)) && (currentChannelCount == 2)) &&
                   (Miniport->cm->enableSPDIFOut);
 
    if (!isCaptureStream) {
        ntStatus = setupSPDIFPlayback(enableSPDIF);
        if (!NT_SUCCESS(ntStatus)) {
            return ntStatus;
        }
        ntStatus = setDACChannels();
        if (!NT_SUCCESS(ntStatus)) {
            return ntStatus;
        }
    }
 
    KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, false, NULL);
 
    val = channelNumber ? ADC_CH1 : ADC_CH0;
    if (isCaptureStream) {
        Miniport->cm->regFUNCTRL0 |= val;  // 1->Recording
    } else {
        Miniport->cm->regFUNCTRL0 &= ~val; // 0->Playback
    }
    Miniport->CMIAdapter->writeUInt32(REG_FUNCTRL0, Miniport->cm->regFUNCTRL0);
 
    //set sampling frequency
    val = Miniport->CMIAdapter->readUInt32(REG_FUNCTRL1);
    if ((currentSampleRate == 88200) || (currentSampleRate == 44100)) {
        if (channelNumber) {
            val &= ~SFC_CH1_MASK;
            val |= SFC_44K_CH1;
        } else {
            val &= ~SFC_CH0_MASK;
            val |= SFC_44K_CH0;
        }
    } else if ((currentSampleRate == 96000) || (currentSampleRate == 48000)) {
        if (channelNumber) {
            val &= ~SFC_CH1_MASK;
            val |= SFC_48K_CH1;
        } else {
            val &= ~SFC_CH0_MASK;
            val |= SFC_48K_CH0;
        }
    } else {
            KeReleaseMutex(&Miniport->mutex, FALSE);
            return STATUS_INVALID_DEVICE_REQUEST;
    }
    Miniport->CMIAdapter->writeUInt32(REG_FUNCTRL1, val);
 
    //set resolution
    val = Miniport->CMIAdapter->readUInt32(REG_CHFORMAT);
    if (channelNumber) {
        val |= FORMAT_CH1;
    } else {
        val |= FORMAT_CH0;
    }
    Miniport->CMIAdapter->writeUInt32(REG_CHFORMAT, val);
 
    KeReleaseMutex(&Miniport->mutex, false);
 
    return STATUS_SUCCESS;
}
 
NTSTATUS CMiniportWaveStreamCMI::setDACChannels()
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::setDACChannels()", this));
    NTSTATUS ntStatus = STATUS_SUCCESS;
 
    if (currentChannelCount > 2) {
        if (Miniport->cm->maxChannels < currentChannelCount) {
            return STATUS_INVALID_DEVICE_REQUEST;
        }
        if ((currentResolution != 16) || (currentChannelCount < 2)) {
            return STATUS_INVALID_DEVICE_REQUEST;
        }
#if OUT_CHANNEL == 0
        return STATUS_INVALID_DEVICE_REQUEST;
#endif
        KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, FALSE, NULL);
        Miniport->CMIAdapter->setUInt32Bit(REG_LEGACY, DWORD_MAPPING);
        Miniport->CMIAdapter->setUInt32Bit(REG_MISCCTRL, XCHG_DAC);
 
        switch (currentChannelCount) {
            case 4:
                Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, EN_4CH_CH1);
                Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, EN_5CH_CH1);
                Miniport->CMIAdapter->clearUInt32Bit(REG_LEGACY, EN_6CH_CH1);
                Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL, EN_CENTER);
                break;
            case 6:
                Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, EN_4CH_CH1);
                Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, EN_5CH_CH1);
                Miniport->CMIAdapter->setUInt32Bit(REG_LEGACY, EN_6CH_CH1);
                Miniport->CMIAdapter->setUInt32Bit(REG_MISCCTRL, EN_CENTER);
                break;
            case 8:
                if (Miniport->cm->chipVersion == 68) {
                    Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, EN_4CH_CH1);
                    Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, EN_5CH_CH1);
                    Miniport->CMIAdapter->setUInt32Bit(REG_LEGACY, EN_6CH_CH1);
                    Miniport->CMIAdapter->setUInt32Bit(REG_MISCCTRL, EN_CENTER);
                    Miniport->CMIAdapter->setUInt32Bit(REG_MISCCTRL2, EN_8CH_CH1);
                    break;
                } else {
                    ntStatus = STATUS_INVALID_DEVICE_REQUEST;
                }
            default:
                ntStatus = STATUS_INVALID_DEVICE_REQUEST;
        }
        KeReleaseMutex(&Miniport->mutex, FALSE);
    } else {
        if (Miniport->cm->canMultiChannel) {
            KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, FALSE, NULL);
            Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, EN_5CH_CH1 | EN_4CH_CH1);
            Miniport->CMIAdapter->clearUInt32Bit(REG_LEGACY, EN_6CH_CH1 | DWORD_MAPPING);
            Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL, EN_CENTER);
            Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL, XCHG_DAC);
            if (Miniport->cm->chipVersion == 68) {
                Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL2, EN_8CH_CH1);
            }
            KeReleaseMutex(&Miniport->mutex, FALSE);
        }
    }
    return ntStatus;
}
 
NTSTATUS CMiniportWaveStreamCMI::setupSPDIFPlayback(bool enableSPDIF)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::setupSPDIFPlayback(%d)", this, enableSPDIF));
 
    KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, false, NULL);
 
    if (enableSPDIF) {
        Miniport->CMIAdapter->setUInt32Bit(REG_LEGACY, EN_SPDIF_OUT);
        Miniport->CMIAdapter->setUInt32Bit(REG_FUNCTRL1, SPDO2DAC);
#if OUT_CHANNEL == 0
        Miniport->CMIAdapter->setUInt32Bit(REG_FUNCTRL1, SPDF_0);
#else
        Miniport->CMIAdapter->setUInt32Bit(REG_FUNCTRL1, SPDF_1);
#endif
        setupAC3Passthru();
 
        if ( (currentSampleRate == 48000) || (currentSampleRate == 96000) ) {
            Miniport->CMIAdapter->setUInt32Bit(REG_MISCCTRL, EN_SPDIF_48);
        } else {
            Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL, EN_SPDIF_48);
        }
 
        if (currentSampleRate == 96000) {
#if OUT_CHANNEL == 0
            Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, SPD96_CH0);
#else
            Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, SPD96_CH1);
#endif
            Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, DBLSPDS);
        } else if (currentSampleRate == 88200) {
#if OUT_CHANNEL == 0
            Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, SPD88_CH0);
#else
            Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, SPD88_CH1);
#endif
            Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, DBLSPDS);
        } else {
#if OUT_CHANNEL == 0
            Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD88_CH0 | SPD96_CH0);
#else
            Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD88_CH1 | SPD96_CH1);
#endif
            Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, DBLSPDS);
        }
 
    } else {
        Miniport->CMIAdapter->clearUInt32Bit(REG_LEGACY, EN_SPDIF_OUT);
        Miniport->CMIAdapter->clearUInt32Bit(REG_FUNCTRL1, SPDO2DAC);
#if OUT_CHANNEL == 0
        Miniport->CMIAdapter->clearUInt32Bit(REG_FUNCTRL1, SPDF_0);
#else
        Miniport->CMIAdapter->clearUInt32Bit(REG_FUNCTRL1, SPDF_1);
#endif
#if OUT_CHANNEL == 0
        Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD88_CH0 | SPD96_CH0);
#else
        Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD88_CH1 | SPD96_CH1);
#endif
        Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, DBLSPDS);
        setupAC3Passthru();
    }
 
    KeReleaseMutex(&Miniport->mutex, false);
    return STATUS_SUCCESS;
}
 
NTSTATUS CMiniportWaveStreamCMI::setupAC3Passthru()
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::setupAC3Passthru() [enableAC3Passthru: %d]", this, enableAC3Passthru));
 
    if (enableAC3Passthru) {
        Miniport->CMIAdapter->writeUInt8(REG_MIXER1, Miniport->CMIAdapter->readUInt8(REG_MIXER1) | MUTE_WAVE);
 
        Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, EN_SPDO_AC3_1);
        Miniport->CMIAdapter->setUInt32Bit(REG_MISCCTRL, EN_SPDO_AC3_2);
 
        if (Miniport->cm->canAC3HW) {
            Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, EN_SPDO_AC3_3);
            Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL, SPD32SEL);
            if (Miniport->cm->chipVersion >= 39) {
                Miniport->CMIAdapter->clearUInt8Bit(REG_MIXER1, EN_SPDI2DAC);
            }
        } else {
            Miniport->CMIAdapter->setUInt32Bit(REG_MISCCTRL, SPD32SEL);
            if (Miniport->cm->chipVersion == 33) {
                if (currentSampleRate >= 48000) {
#if OUT_CHANNEL == 0
                     Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, SPD96_CH0);
#else
                     Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, SPD96_CH1);
#endif
                } else {
#if OUT_CHANNEL == 0
                     Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD96_CH0);
#else
                     Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD96_CH1);
#endif
                }
            }
        }
    } else {
        if (Miniport->cm->enableSPDIFInMonitor) {
            Miniport->CMIAdapter->setUInt8Bit(REG_MIXER1, EN_SPDI2DAC);
        }
 
        Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, EN_SPDO_AC3_1);
        Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL, EN_SPDO_AC3_2);
 
        if (Miniport->cm->canAC3HW) {
            Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, EN_SPDO_AC3_3);
            if (currentResolution > 16) {
                Miniport->CMIAdapter->setUInt32Bit(REG_MISCCTRL, SPD32SEL);
                Miniport->CMIAdapter->setUInt32Bit(REG_CHFORMAT, SPD24SEL);
            } else {
                Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL, SPD32SEL);
                Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD24SEL);
            }
        } else {
            Miniport->CMIAdapter->clearUInt32Bit(REG_MISCCTRL, SPD32SEL);
#if OUT_CHANNEL == 0
            Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD96_CH0);
#else
            Miniport->CMIAdapter->clearUInt32Bit(REG_CHFORMAT, SPD96_CH1);
#endif
        }
    }
    return STATUS_SUCCESS;
}
 
CMiniportWaveStreamCMI::~CMiniportWaveStreamCMI(void)
{
    PAGED_CODE();
 
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::~CMiniportWaveStreamCMI [streamIndex: %d]", this, streamIndex));
 
    if (state != KSSTATE_STOP) {
        SetState(KSSTATE_STOP);
    }
 
#ifdef WAVERT
    if (Port) {
        Port->Release();
        Port = NULL;
    }
#else
    if (DMAChannel) {
        DMAChannel->Release();
        DMAChannel = NULL;
    }
 
    if (ServiceGroup) {
        ServiceGroup->Release();
        ServiceGroup = NULL;
    }
#endif
 
    Miniport->isStreamRunning[streamIndex] = false;
 
    if ((streamIndex == AC3_OUT_STREAM) && Miniport->isStreamRunning[PCM_OUT_STREAM]) {
        KSSTATE temp = Miniport->stream[PCM_OUT_STREAM]->state;
        Miniport->stream[PCM_OUT_STREAM]->state = KSSTATE_STOP;
        Miniport->stream[PCM_OUT_STREAM]->prepareStream();
        Miniport->stream[PCM_OUT_STREAM]->SetState(KSSTATE_ACQUIRE);
        Miniport->stream[PCM_OUT_STREAM]->state = temp;
        Miniport->stream[PCM_OUT_STREAM]->SetState(KSSTATE_RUN_AC3);
    }
 
    if (Miniport) {
        Miniport->Release();
        Miniport = NULL;
    }
}
 
STDMETHODIMP CMiniportWaveStreamCMI::NonDelegatingQueryInterface(REFIID Interface, PVOID *Object)
{
    PAGED_CODE();
    ASSERT(Object);
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::NonDelegatingQueryInterface(%p, %p)", this, Interface, Object));
 
    if (IsEqualGUIDAligned(Interface,IID_IUnknown)) {
        *Object = PVOID(PUNKNOWN(PMINIPORTWAVECYCLICSTREAM(this)));
#ifdef WAVERT
    } else if (IsEqualGUIDAligned(Interface,IID_IMiniportWaveRTStream)) {
        *Object = PVOID(PMINIPORTWAVERTSTREAM(this));
#else
    } else if (IsEqualGUIDAligned(Interface,IID_IMiniportWaveCyclicStream)) {
        *Object = PVOID(PMINIPORTWAVECYCLICSTREAM(this));
#endif
    } else if (IsEqualGUIDAligned (Interface, IID_IDrmAudioStream)) {
        *Object = (PVOID)(PDRMAUDIOSTREAM(this));
    } else {
        *Object = NULL;
    }
 
    if (*Object) {
        PUNKNOWN(*Object)->AddRef();
        return STATUS_SUCCESS;
    }
 
    return STATUS_INVALID_PARAMETER;
}
 
#ifdef WAVERT
NTSTATUS CMiniportWaveStreamCMI::Init(CMiniportWaveCMI* Miniport_, UInt32 streamIndex_, bool isCaptureStream_, PKSDATAFORMAT DataFormat, PPORTWAVERTSTREAM Port_)
#else
NTSTATUS CMiniportWaveStreamCMI::Init(CMiniportWaveCMI* Miniport_, UInt32 streamIndex_, bool isCaptureStream_, PKSDATAFORMAT DataFormat, PDMACHANNEL DMAChannel_, PSERVICEGROUP* OutServiceGroup)
#endif
{
    PAGED_CODE();
    ASSERT(Miniport_);
    ASSERT(DataFormat);
 
    NTSTATUS ntStatus;
 
#ifdef WAVERT
    ASSERT(Port_);
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::Init(%p, %d, %d, %p, %p)", this, Miniport_, streamIndex_, isCaptureStream_, DataFormat, Port_));
    Port = Port_;
    Port->AddRef();
#else
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::Init(%p, %d, %d, %p, %p, %p)", this, Miniport_, streamIndex_, isCaptureStream_, DataFormat, DMAChannel_, OutServiceGroup));
    DMAChannel = DMAChannel_;
    DMAChannel->AddRef();
#endif
 
    Miniport = Miniport_;
    Miniport->AddRef();
 
    streamIndex     = streamIndex_;
    isCaptureStream = isCaptureStream_;
    state           = KSSTATE_STOP;
 
    if ( (streamIndex == PCM_OUT_STREAM) || (streamIndex == AC3_OUT_STREAM) ) {
        channelNumber = OUT_CHANNEL;
    } else {
        channelNumber = IN_CHANNEL;
    }
 
#ifndef WAVERT
    ntStatus = PcNewServiceGroup(&ServiceGroup,NULL);
    if (!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("PcNewServiceGroup() or NewMasterDmaChannel() failed"));
        return ntStatus;
    }
    *OutServiceGroup = ServiceGroup;
    ServiceGroup->AddRef();
#endif
 
    ntStatus = SetFormat(DataFormat);
    if (!NT_SUCCESS(ntStatus)) {
        DBGPRINT(("SetFormat() failed"));
        return ntStatus;
    }
 
    Miniport->isStreamRunning[streamIndex] = true;
 
    return ntStatus;
}
 
NTSTATUS CMiniportWaveStreamCMI::SetFormat(PKSDATAFORMAT Format)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::SetFormat(%p)", this, Format));
    PWAVEFORMATEX waveFormat = PWAVEFORMATEX(Format + 1);
    NTSTATUS ntStatus = Miniport->validateFormat(Format, -1, isCaptureStream);
    if (!NT_SUCCESS(ntStatus)) {
        return ntStatus;
    }
    // the DAC and ADC can only run at the same sample rate simultaneously
    if ((streamIndex == PCM_IN_STREAM) && Miniport->isStreamRunning[PCM_OUT_STREAM]) {
        if (waveFormat->nSamplesPerSec != Miniport->stream[PCM_OUT_STREAM]->currentSampleRate) {
            return STATUS_UNSUCCESSFUL;
        }
    }
    if ((streamIndex == PCM_IN_STREAM) && Miniport->isStreamRunning[AC3_OUT_STREAM]) {
        if (waveFormat->nSamplesPerSec != Miniport->stream[AC3_OUT_STREAM]->currentSampleRate) {
            return STATUS_UNSUCCESSFUL;
        }
    }
    if ((streamIndex == PCM_OUT_STREAM) && Miniport->isStreamRunning[PCM_IN_STREAM]) {
        if (waveFormat->nSamplesPerSec != Miniport->stream[PCM_IN_STREAM]->currentSampleRate) {
            return STATUS_UNSUCCESSFUL;
        }
    }
    if ((streamIndex == PCM_OUT_STREAM) && Miniport->isStreamRunning[AC3_OUT_STREAM]) {
        return STATUS_UNSUCCESSFUL;
    }
 
    KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, false, NULL);
    currentSampleRate   = waveFormat->nSamplesPerSec;
    currentChannelCount = waveFormat->nChannels;
    currentResolution   = waveFormat->wBitsPerSample;
    enableAC3Passthru   = (WAVE_FORMAT_DOLBY_AC3_SPDIF == EXTRACT_WAVEFORMATEX_ID(&Format->SubFormat)) || (WAVE_FORMAT_WMA_SPDIF == EXTRACT_WAVEFORMATEX_ID(&Format->SubFormat));
    KeReleaseMutex(&Miniport->mutex, false);
    ntStatus = prepareStream();
 
    return ntStatus;
}
 
// DRM crap - we're supposed to disable every digital interface here
STDMETHODIMP_(NTSTATUS) CMiniportWaveStreamCMI::SetContentId(ULONG contentId, PCDRMRIGHTS drmRights)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::SetContentId(%d, %p)", this, contentId, drmRights));
 
    return STATUS_SUCCESS;
}
 
#ifdef WAVERT
STDMETHODIMP_(NTSTATUS) CMiniportWaveStreamCMI::AllocateAudioBuffer(ULONG size, PMDL *userModeBuffer, ULONG *bufferSize, ULONG *bufferOffset, MEMORY_CACHING_TYPE *cacheType)
{
    PAGED_CODE();
 
    PHYSICAL_ADDRESS    low;
    PHYSICAL_ADDRESS    high;
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::AllocateAudioBuffer(0x%x, %p, %p, %p, %p)", this, size, userModeBuffer, bufferSize, bufferOffset, cacheType));
 
    if (size <= size % (currentChannelCount * 2)) {
        return STATUS_UNSUCCESSFUL;
    }
    size -= size % (currentChannelCount * 2);
 
    if (size == 0) {
        return STATUS_UNSUCCESSFUL;
    }
 
    low.HighPart = 0; low.LowPart = 0;
    high.HighPart = 0; high.LowPart = MAXULONG;
    if (size <= 4096) {
        audioBufferMDL = Port->AllocatePagesForMdl(high, size);
        } else {
        audioBufferMDL = Port->AllocateContiguousPagesForMdl(low, high, size);
        }
    if (!audioBufferMDL) {
        DBGPRINT(("AllocateContiguousPagesForMdl()/AllocatePagesForMdl() failed (size: 0x%x)", size));
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    dmaAddress = Port->GetPhysicalPageAddress(audioBufferMDL, 0).LowPart;
    dmaMemorySize = size;
 
    *userModeBuffer = audioBufferMDL;
    *bufferSize = size;
    *bufferOffset = 0;
    *cacheType = MmCached;
 
    return STATUS_SUCCESS;
}
 
 
STDMETHODIMP_(VOID) CMiniportWaveStreamCMI::FreeAudioBuffer(PMDL Mdl, ULONG Size)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::FreeAudioBuffer(%p, %x)", this, Mdl, Size));
 
    Port->FreePagesFromMdl(Mdl);
    audioBufferMDL = NULL;
    dmaAddress     = 0;
    dmaMemorySize  = 0;
}
 
STDMETHODIMP_(void) CMiniportWaveStreamCMI::GetHWLatency(PKSRTAUDIO_HWLATENCY hwLatency)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::GetHWLatency(%p)", this, hwLatency));
    hwLatency->FifoSize     = 32;
    hwLatency->ChipsetDelay = 0;
    hwLatency->CodecDelay   = 4;
}
 
STDMETHODIMP_(NTSTATUS) CMiniportWaveStreamCMI::GetPositionRegister(PKSRTAUDIO_HWREGISTER hwRegister)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::GetPositionRegister(%p)", this, hwRegister));
 
    return STATUS_UNSUCCESSFUL;
}
 
STDMETHODIMP_(NTSTATUS) CMiniportWaveStreamCMI::GetClockRegister(PKSRTAUDIO_HWREGISTER hwRegister)
{
    PAGED_CODE();
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::GetClockRegister(%p)", this, hwRegister));
 
    return STATUS_UNSUCCESSFUL;
}
 
#endif // WAVERT
 
/*
** non-paged code below
*/
#ifdef _MSC_VER
#pragma code_seg()
#endif
 
STDMETHODIMP CMiniportWaveStreamCMI::SetState(KSSTATE NewState)
{
    DBGPRINT(("CMiniportWaveStreamCMI[%p]::SetState(%d) [streamIndex: %d, channelNumber: %d]", this, NewState, streamIndex, channelNumber));
 
    UInt32 inthld, chen, reset, pause;
    UInt8  reg;
 
    inthld = EN_CH0_INT << channelNumber;
    chen   = EN_CH0     << channelNumber;
    reset  = RST_CH0    << channelNumber;
    pause  = PAUSE_CH0  << channelNumber;
 
    NTSTATUS ntStatus = STATUS_SUCCESS;
 
    if ((streamIndex == PCM_OUT_STREAM) && Miniport->isStreamRunning[AC3_OUT_STREAM]) {
        return STATUS_INVALID_PARAMETER;
    }
 
    if (NewState == KSSTATE_RUN_AC3) {
        NewState = state;
        state = KSSTATE_STOP;
    }
 
    // STOP -> ACQUIRE -> PAUSE -> PLAY -> PAUSE -> ACQUIRE -> STOP
    if (state != NewState) {
        switch (NewState) {
            case KSSTATE_ACQUIRE:
                DBGPRINT(("---KSSTATE_ACQUIRE: previous state: %d", state));
                if (state == KSSTATE_PAUSE) {
                    break;
                }
 
#ifdef WAVERT
                if ((dmaMemorySize == 0) || (dmaAddress == 0)) {
                    return STATUS_UNSUCCESSFUL;
                }
                dmaSize = (dmaMemorySize / (2 * (currentResolution >> 3)) );
                periodSize = dmaSize;
                DBGPRINT(("---dmaAddress: %x, dmaMemorySize: %x, dmaSize: %x", dmaAddress, dmaMemorySize, dmaSize));
#else
                if (currentResolution == 32) {
                    dmaSize = (DMAChannel->BufferSize() / (2 * (32 >> 3)) );
                } else {
                    dmaSize = (DMAChannel->BufferSize() / (2 * (currentResolution >> 3)) );
                }
#endif
                DBGPRINT(("---SampleRate: %d, Resolution: %d, Channels: %d", currentSampleRate, currentResolution, currentChannelCount));
 
                if (periodSize > dmaSize) {
                    periodSize = dmaSize;
                }
 
                // set address of the DMA buffer
                KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, FALSE, NULL);
                reg = channelNumber ? REG_CH1_FRAME1 : REG_CH0_FRAME1;
#ifdef WAVERT
                Miniport->CMIAdapter->writeUInt32(reg, dmaAddress);
#else
                Miniport->CMIAdapter->writeUInt32(reg, DMAChannel->PhysicalAddress().u.LowPart);
                DBGPRINT(("---DMA Address: HighPart: 0x%08X LowPart: 0x%08X", DMAChannel->PhysicalAddress().u.HighPart, DMAChannel->PhysicalAddress().u.LowPart));
#endif
                // count of samples
                reg = channelNumber ? REG_CH1_FRAME2 : REG_CH0_FRAME2;
                Miniport->CMIAdapter->writeUInt16(reg, dmaSize-1);
                Miniport->CMIAdapter->writeUInt16(reg + 2, periodSize-1);
                DBGPRINT(("---DMA Size:   0x%04X, Period Size: 0x%04X, enableSPDIFIn: %d", dmaSize, periodSize, Miniport->cm->enableSPDIFIn));
                if (isCaptureStream) {
                    if (Miniport->cm->enableSPDIFIn) {
#if OUT_CHANNEL==0
                        Miniport->CMIAdapter->setUInt32Bit(REG_FUNCTRL1, SPDF_1);
#else
                        Miniport->CMIAdapter->setUInt32Bit(REG_FUNCTRL1, SPDF_0);
#endif
                    } else {
#if OUT_CHANNEL==0
                        Miniport->CMIAdapter->clearUInt32Bit(REG_FUNCTRL1, SPDF_1);
#else
                        Miniport->CMIAdapter->clearUInt32Bit(REG_FUNCTRL1, SPDF_0);
#endif
                    }
                }
                KeReleaseMutex(&Miniport->mutex, false);
                break;
 
            case KSSTATE_PAUSE:
                DBGPRINT(("---KSSTATE_PAUSE: previous state: %d", state));
                if (state == KSSTATE_RUN) {
                    KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, false, NULL);
                    Miniport->cm->regFUNCTRL0 |= pause;
                    Miniport->CMIAdapter->writeUInt32(REG_FUNCTRL0, Miniport->cm->regFUNCTRL0);
                    KeReleaseMutex(&Miniport->mutex, FALSE);
                }
                if (state == KSSTATE_STOP) {
                    KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, false, NULL);
                    Miniport->cm->regFUNCTRL0 &= ~pause;
                    Miniport->CMIAdapter->writeUInt32(REG_FUNCTRL0, Miniport->cm->regFUNCTRL0);
                    KeReleaseMutex(&Miniport->mutex, false);
                }
                break;
 
            case KSSTATE_RUN:
                DBGPRINT(("---KSSTATE_RUN: previous state: %d", state));
 
                KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, FALSE, NULL);
                // set interrupt
                Miniport->CMIAdapter->setUInt32Bit(REG_INTHLDCLR, inthld);
                Miniport->cm->regFUNCTRL0 &= ~pause;
                Miniport->cm->regFUNCTRL0 |= chen;
                // and enable the channel
                Miniport->CMIAdapter->writeUInt32(REG_FUNCTRL0, Miniport->cm->regFUNCTRL0);
 
                DBGPRINT(("---FUNCTRL0:   0x%08X", Miniport->cm->regFUNCTRL0));
                DBGPRINT(("---FUNCTRL1:   0x%08X", Miniport->CMIAdapter->readUInt32(REG_FUNCTRL1)));
                DBGPRINT(("---CHFORMAT:   0x%08X", Miniport->CMIAdapter->readUInt32(REG_CHFORMAT)));
                DBGPRINT(("---LEGACYCTRL: 0x%08X", Miniport->CMIAdapter->readUInt32(REG_LEGACY)));
                DBGPRINT(("---MISCCTRL:   0x%08X", Miniport->CMIAdapter->readUInt32(REG_MISCCTRL)));
                DBGPRINT(("---MIX1:       0x%02X", Miniport->CMIAdapter->readUInt8(REG_MIXER1)));
                DBGPRINT(("---MIX2:       0x%02X", Miniport->CMIAdapter->readUInt8(REG_MIXER2)));
                DBGPRINT(("---MIX3:       0x%02X", Miniport->CMIAdapter->readUInt8(REG_MIXER3)));
 
                KeReleaseMutex(&Miniport->mutex, false);
                break;
 
            case KSSTATE_STOP_AC3:
            case KSSTATE_STOP:
                DBGPRINT(("---KSSTATE_STOP: previous state: %d", state));
                KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, FALSE, NULL);
                // clear interrupt
                Miniport->CMIAdapter->clearUInt32Bit(REG_INTHLDCLR, inthld);
                Miniport->cm->regFUNCTRL0 &= ~chen;
                // reset
                Miniport->CMIAdapter->writeUInt32(REG_FUNCTRL0, Miniport->cm->regFUNCTRL0 | reset);
                Miniport->CMIAdapter->writeUInt32(REG_FUNCTRL0, Miniport->cm->regFUNCTRL0 & ~reset);
                if (isCaptureStream && (Miniport->cm->enableSPDIFIn)) {
#if OUT_CHANNEL==0
                    Miniport->CMIAdapter->clearUInt32Bit(REG_FUNCTRL1, SPDF_1);
#else
                    Miniport->CMIAdapter->clearUInt32Bit(REG_FUNCTRL1, SPDF_0);
#endif
                }
                KeReleaseMutex(&Miniport->mutex, FALSE);
                break;
        }
        if (NewState != KSSTATE_STOP_AC3) {
            state = NewState;
        }
    }
    return ntStatus;
}
 
#ifdef WAVERT
 
STDMETHODIMP CMiniportWaveStreamCMI::GetPosition(PKSAUDIO_POSITION Position)
{
    ASSERT(Position);
 
    UInt32 reg;
 
    if ((state == KSSTATE_RUN) && (dmaAddress)) {
        reg = (channelNumber) ? REG_CH1_FRAME1 : REG_CH0_FRAME1;
        Position->PlayOffset = Miniport->CMIAdapter->readUInt32(reg) - dmaAddress;
        Position->WriteOffset = Position->PlayOffset + currentChannelCount * 2 * 8;
    } else {
        Position->PlayOffset = 0;
        Position->WriteOffset = 0;
    }
 
    return STATUS_SUCCESS;
}
 
#else //WaveCyclic
 
STDMETHODIMP CMiniportWaveStreamCMI::GetPosition(PULONG Position)
{
    ASSERT(Position);
 
    UInt32 reg;
 
    if ((DMAChannel) && (state == KSSTATE_RUN)) {
#if 0
// this implementation messes with SPDIF-in recording
        reg = (channelNumber) ? REG_CH1_FRAME2 : REG_CH0_FRAME2;
        *Position = dmaSize - (Miniport->CMIAdapter->readUInt16(reg)-1);
        *Position *= 2 * (currentResolution >> 3);
#else
        reg = (channelNumber) ? REG_CH1_FRAME1 : REG_CH0_FRAME1;
        *Position = Miniport->CMIAdapter->readUInt32(reg);
        if (*Position > DMAChannel->PhysicalAddress().u.LowPart) {
            *Position -= DMAChannel->PhysicalAddress().u.LowPart;
        } else {
            *Position = 0;
        }
#endif
    } else {
        *Position = 0;
    }
 
    return STATUS_SUCCESS;
}
 
STDMETHODIMP_(ULONG) CMiniportWaveStreamCMI::SetNotificationFreq(ULONG Interval, PULONG FramingSize)
{
    Miniport->notificationInterval = Interval;
 
    if (state == KSSTATE_RUN) {
        return 0;
    }
    // periodSize [sample] = interval [ms] * sample rate [Hz] * 1e-3 [milli]
    periodSize   = Interval * currentSampleRate / 1000;
    // FramingSize [byte] = periodSize [sample] * #Channels * resolution [byte];
    *FramingSize = periodSize * currentChannelCount * (currentResolution >> 3);
 
    KeWaitForSingleObject(&Miniport->mutex, Executive, KernelMode, FALSE, NULL);
    Miniport->CMIAdapter->writeUInt16((channelNumber ? REG_CH1_FRAME2 : REG_CH0_FRAME2) + 2, periodSize-1);
    KeReleaseMutex(&Miniport->mutex, FALSE);
 
    DBGPRINT(("periodSize: %x, FramingSize: %x", periodSize, *FramingSize));
    return Interval;
}
 
STDMETHODIMP CMiniportWaveStreamCMI::NormalizePhysicalPosition(PLONGLONG PhysicalPosition)
{
    // time_pos [ns] = byte_pos [byte] / (1e-9 [nano] * #Channels * resolution [byte] * sample rate [Hz])
    *PhysicalPosition = (*PhysicalPosition * 10000000L) / (currentChannelCount * (currentResolution >> 3) * currentSampleRate);
    return STATUS_SUCCESS;
}
 
 
STDMETHODIMP_(void) CMiniportWaveStreamCMI::Silence(PVOID Buffer, ULONG ByteCount)
{
    RtlFillMemory(Buffer, ByteCount, 0x00);
}
 
#endif //WAVERT
 
STDMETHODIMP_(void) CMiniportWaveCMI::ServiceWaveISR(UInt32 streamIndex)
{
#ifndef WAVERT
    if ((streamIndex == PCM_OUT_STREAM) && isStreamRunning[AC3_OUT_STREAM]) {
        streamIndex = AC3_OUT_STREAM;
    }
    if (Port && stream[streamIndex]->ServiceGroup) {
        Port->Notify(stream[streamIndex]->ServiceGroup);
    }
#endif
}