mintopo.cpp

C-Media8738/8768声卡驱动开发源码

/*
Copyright (c) 2006-2007 dogbert <[e-mail]>
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 "limits.h"
#include "mintopo.hpp"
#include "mintopotables.hpp"
#define NTSTRSAFE_LIB //for Windows 2000 compatibility
#include "NtStrsafe.h"

#pragma code_seg("PAGE")

NTSTATUS CreateMiniportTopologyCMI(PUNKNOWN* Unknown, REFCLSID, PUNKNOWN UnknownOuter, POOL_TYPE PoolType)
{
	PAGED_CODE();
	ASSERT(Unknown);
	STD_CREATE_BODY_(CCMITopology,Unknown,UnknownOuter,PoolType,PMINIPORTTOPOLOGY);
}

STDMETHODIMP CCMITopology::NonDelegatingQueryInterface(REFIID Interface, PVOID* Object)
{
	PAGED_CODE();
	ASSERT(Object);
	DBGPRINT(("CCMITopology::NonDelegatingQueryInterface"));

	if (IsEqualGUIDAligned(Interface,IID_IUnknown)) {
		*Object = PVOID(PUNKNOWN(PMINIPORTTOPOLOGY(this)));
	} else if (IsEqualGUIDAligned(Interface,IID_IMiniport)) {
		*Object = PVOID(PMINIPORT(this));
	} else if (IsEqualGUIDAligned(Interface,IID_IMiniportTopology)) {
		*Object = PVOID(PMINIPORTTOPOLOGY(this));
	} else if (IsEqualGUIDAligned (Interface, IID_ICMITopolgy)) {
		*Object = (PVOID)(PMINIPORTTOPOLOGY)this;
	} else {
		*Object = NULL;
	}

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

	return STATUS_INVALID_PARAMETER;
}

CCMITopology::~CCMITopology()
{
	PAGED_CODE();

	DBGPRINT(("CCMITopology::~CCMITopology"));

	SaveMixerSettings(); //or not. during system shutdown, this doesn't seem to work.
	if (CMIAdapter) {
		CMIAdapter->Release();
	}
}

STDMETHODIMP CCMITopology::Init(PUNKNOWN UnknownAdapter, PRESOURCELIST ResourceList, PPORTTOPOLOGY Port)
{
	PAGED_CODE();
	ASSERT(UnknownAdapter);
	ASSERT(Port);
	DBGPRINT(("CCMITopology::Init"));

	NTSTATUS ntStatus = UnknownAdapter->QueryInterface(IID_ICMIAdapter, (PVOID *)&CMIAdapter);

	if (!NT_SUCCESS(ntStatus)) {
		DBGPRINT(("UnknownAdapter->QueryInterface() failed"));
		return STATUS_INVALID_PARAMETER;
	}

	CMIAdapter->resetMixer();
	auxVolumeRegister = CMIAdapter->readUInt8(REG_MIXER3);
	micVolumeRegister = CMIAdapter->readUInt8(REG_MIXER2);

	cm = CMIAdapter->getCMI8738Info();
	LoadMixerSettings();

	return STATUS_SUCCESS;
}

STDMETHODIMP CCMITopology::GetDescription(PPCFILTER_DESCRIPTOR*  OutFilterDescriptor)
{
    PAGED_CODE();
    ASSERT(OutFilterDescriptor);
    DBGPRINT(("CCMITopology::GetDescription"));

    *OutFilterDescriptor = &MiniportFilterDescriptor;

    return STATUS_SUCCESS;
}

NTSTATUS CCMITopology::LoadMixerSettings()
{
	PREGISTRYKEY       DriverKey;
	PREGISTRYKEY       SettingsKey;
	UNICODE_STRING     KeyName;
	PCPROPERTY_REQUEST PropertyRequest;
	PCPROPERTY_ITEM    PropertyItem;
	DWORD              Channel;
	PVOID              KeyInfo;
	ULONG              ResultLength;
	WCHAR              buffer[128];
	DBGPRINT(("CCMITopology::LoadMixerSettings"));

	if ((!CMIAdapter) || (!(CMIAdapter->getDeviceObject()))) {
		DBGPRINT(("CMIAdapter->getDeviceObject() failed"));
		return STATUS_UNSUCCESSFUL;
	}

	settingsLoaded = FALSE;

	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), 'dbrt');
	if(KeyInfo == NULL) {
		DBGPRINT(("ExAllocatePoolWithTag() failed"));
		return STATUS_UNSUCCESSFUL;
	}

	PropertyRequest.MajorTarget  = this;
	PropertyRequest.Verb         = KSPROPERTY_TYPE_SET;
	PropertyRequest.Instance     = &Channel;
	PropertyRequest.InstanceSize = sizeof(DWORD);
	PropertyRequest.Value        = &(PKEY_VALUE_PARTIAL_INFORMATION(KeyInfo)->Data);
	PropertyRequest.ValueSize    = sizeof(DWORD);
	PropertyRequest.PropertyItem = &PropertyItem;

	for (int i=0;i < SIZEOF_ARRAY(TopologyNodes); i++) {
		PropertyRequest.Node = i;

		Channel = CHAN_LEFT;
		ntStatus = RtlStringCbPrintfW(buffer, sizeof(buffer), L"Node%dLeft", i);
		if (!NT_SUCCESS(ntStatus)) {
			DBGPRINT(("RtlStringCbPrintfW() failed"));
		}
		RtlInitUnicodeString(&KeyName, buffer);
		ntStatus = SettingsKey->QueryValueKey(&KeyName, KeyValuePartialInformation, KeyInfo, sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(DWORD), &ResultLength);
		if (NT_SUCCESS(ntStatus)) {
			if(PKEY_VALUE_PARTIAL_INFORMATION(KeyInfo)->DataLength == sizeof(DWORD)) {
				if (IsEqualGUIDAligned(*(TopologyNodes[i].Type), KSNODETYPE_VOLUME)) {
					PropertyItem.Id = KSPROPERTY_AUDIO_VOLUMELEVEL;
					PropertyHandler_Level(&PropertyRequest);
				}
				if (IsEqualGUIDAligned(*(TopologyNodes[i].Type), KSNODETYPE_MUTE)) {
					PropertyItem.Id = KSPROPERTY_AUDIO_MUTE;
					PropertyHandler_OnOff(&PropertyRequest);
				}
				if (IsEqualGUIDAligned(*(TopologyNodes[i].Type), KSNODETYPE_LOUDNESS)) {
					PropertyItem.Id = KSPROPERTY_AUDIO_LOUDNESS;
					PropertyHandler_OnOff(&PropertyRequest);
				}
			}
		} else {
			// default values
			if (i == KSNODE_TOPO_IEC_OUT) {
				PropertyItem.Id = KSPROPERTY_AUDIO_LOUDNESS;
				*(PBOOL(PropertyRequest.Value)) = true;
				PropertyHandler_OnOff(&PropertyRequest);
			}
			if (i == KSNODE_TOPO_WAVEOUT_MUTE_IN) {
				PropertyItem.Id = KSPROPERTY_AUDIO_MUTE;
				*(PBOOL(PropertyRequest.Value)) = false;
				PropertyHandler_OnOff(&PropertyRequest);
			}
		}

		Channel = CHAN_RIGHT;
		ntStatus = RtlStringCbPrintfW(buffer, sizeof(buffer), L"Node%dRight", i);
		if (!NT_SUCCESS(ntStatus)) {
			DBGPRINT(("RtlStringCbPrintfW() failed"));
		}
		RtlInitUnicodeString(&KeyName, buffer);
		ntStatus = SettingsKey->QueryValueKey(&KeyName, KeyValuePartialInformation, KeyInfo, sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(DWORD), &ResultLength);
		if (NT_SUCCESS(ntStatus)) {
			if(PKEY_VALUE_PARTIAL_INFORMATION(KeyInfo)->DataLength == sizeof(DWORD)) {
				if (IsEqualGUIDAligned(*(TopologyNodes[i].Type), KSNODETYPE_VOLUME)) {
					PropertyItem.Id = KSPROPERTY_AUDIO_VOLUMELEVEL;
					PropertyHandler_Level(&PropertyRequest);
				}
				if (IsEqualGUIDAligned(*(TopologyNodes[i].Type), KSNODETYPE_MUTE)) {
					PropertyItem.Id = KSPROPERTY_AUDIO_MUTE;
					PropertyHandler_OnOff(&PropertyRequest);
				}
				if (IsEqualGUIDAligned(*(TopologyNodes[i].Type), KSNODETYPE_LOUDNESS)) {
					PropertyItem.Id = KSPROPERTY_AUDIO_LOUDNESS;
					PropertyHandler_OnOff(&PropertyRequest);
				}
			}
		} else {
			if (i == KSNODE_TOPO_WAVEOUT_MUTE_IN) {
				PropertyItem.Id = KSPROPERTY_AUDIO_MUTE;
				*(PBOOL(PropertyRequest.Value)) = false;
				PropertyHandler_OnOff(&PropertyRequest);
			}
		}

	}
	RtlInitUnicodeString(&KeyName, L"FormatMask");
	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)) {
			cm->formatMask = (*(PLONG)PartialInfo->Data);
		}
	} else {
		cm->formatMask = 0xFFFFFFFF;
	}

	ExFreePoolWithTag (KeyInfo,'dbrt');

	SettingsKey->Release();
	DriverKey->Release();

	settingsLoaded = TRUE;

    return STATUS_SUCCESS;
}

NTSTATUS CCMITopology::SaveMixerSettings()
{
	PREGISTRYKEY       DriverKey;
	PREGISTRYKEY       SettingsKey;
	UNICODE_STRING     KeyName;
	PCPROPERTY_REQUEST PropertyRequest;
	PCPROPERTY_ITEM    PropertyItem;
	DWORD              Value,Channel;
	WCHAR              buffer[128];
	DBGPRINT(("CCMITopology::SaveMixerSettings"));

	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;
	}

	PropertyRequest.MajorTarget  = this;
	PropertyRequest.Verb         = KSPROPERTY_TYPE_GET;
	PropertyRequest.Instance     = &Channel;
	PropertyRequest.InstanceSize = sizeof(DWORD);
	PropertyRequest.Value        = &Value;
	PropertyRequest.ValueSize    = sizeof(DWORD);
	PropertyRequest.PropertyItem = &PropertyItem;

	for (int i=0;i < SIZEOF_ARRAY(TopologyNodes); i++) {
		PropertyRequest.Node = i;
		if (IsEqualGUIDAligned(*(TopologyNodes[i].Type), KSNODETYPE_VOLUME)) {
			PropertyRequest.Node = i;
			PropertyItem.Id = KSPROPERTY_AUDIO_VOLUMELEVEL;

			ntStatus = RtlStringCbPrintfW(buffer, sizeof(buffer), L"Node%dLeft", i);
			if (!NT_SUCCESS(ntStatus)) {
				DBGPRINT(("RtlStringCbPrintfW() failed"));
			}
		    RtlInitUnicodeString(&KeyName, buffer);
			Channel = CHAN_LEFT;
			ntStatus = PropertyHandler_Level(&PropertyRequest);
			if (NT_SUCCESS(ntStatus)) {
				ntStatus = SettingsKey->SetValueKey(&KeyName, REG_DWORD, PVOID(&Value), sizeof(DWORD));
				if(!NT_SUCCESS(ntStatus)) {
					DBGPRINT(("SetValueKey() failed"));
					break;
				}
			}

			ntStatus = RtlStringCbPrintfW(buffer, sizeof(buffer), L"Node%dRight", i);
			if (!NT_SUCCESS(ntStatus)) {
				DBGPRINT(("RtlStringCbPrintfW() failed"));
			}
		    RtlInitUnicodeString(&KeyName, buffer);
			Channel = CHAN_RIGHT;
			ntStatus = PropertyHandler_Level(&PropertyRequest);
			if (NT_SUCCESS(ntStatus)) {
				ntStatus = SettingsKey->SetValueKey(&KeyName, REG_DWORD, PVOID(&Value), sizeof(DWORD));
				if(!NT_SUCCESS(ntStatus)) {
					DBGPRINT(("SetValueKey() failed"));
					break;
				}
			}

		}
		if (IsEqualGUIDAligned(*(TopologyNodes[i].Type), KSNODETYPE_MUTE)) {
			PropertyItem.Id = KSPROPERTY_AUDIO_MUTE;
			PropertyHandler_OnOff(&PropertyRequest);

			ntStatus = RtlStringCbPrintfW(buffer, sizeof(buffer), L"Node%dLeft", i);
			if (!NT_SUCCESS(ntStatus)) {
				DBGPRINT(("RtlStringCbPrintfW() failed"));
			}
		    RtlInitUnicodeString(&KeyName, buffer);
			Channel = CHAN_LEFT;
			ntStatus = PropertyHandler_OnOff(&PropertyRequest);
			if (NT_SUCCESS(ntStatus)) {
				ntStatus = SettingsKey->SetValueKey(&KeyName, REG_DWORD, PVOID(&Value), sizeof(DWORD));
				if(!NT_SUCCESS(ntStatus)) {
					DBGPRINT(("SetValueKey() failed"));
					break;
				}
			}

			ntStatus = RtlStringCbPrintfW(buffer, sizeof(buffer), L"Node%dRight", i);
			if (!NT_SUCCESS(ntStatus)) {
				DBGPRINT(("RtlStringCbPrintfW() failed"));
			}
		    RtlInitUnicodeString(&KeyName, buffer);
			Channel = CHAN_RIGHT;
			ntStatus = PropertyHandler_OnOff(&PropertyRequest);
			if (NT_SUCCESS(ntStatus)) {
				ntStatus = SettingsKey->SetValueKey(&KeyName, REG_DWORD, PVOID(&Value), sizeof(DWORD));
				if(!NT_SUCCESS(ntStatus)) {
					DBGPRINT(("SetValueKey() failed"));
					break;