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[WDMAUD.DRV]
- Implement copying mixer capabilities [WDMAUD_KERNEL] - Partly implement retrieving mixer capabilties - Implement retrieving mixer name svn path=/trunk/; revision=43138
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@ -125,6 +125,19 @@ GetWdmDeviceCapabilities(
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/* This is pretty much a big hack right now */
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switch ( DeviceType )
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{
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case MIXER_DEVICE_TYPE:
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{
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LPMIXERCAPS MixerCaps = (LPMIXERCAPS) Capabilities;
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CopyWideString(MixerCaps->szPname, DeviceInfo.u.WaveOutCaps.szPname);
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MixerCaps->cDestinations = DeviceInfo.u.MixCaps.cDestinations;
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MixerCaps->fdwSupport = DeviceInfo.u.MixCaps.fdwSupport;
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MixerCaps->vDriverVersion = DeviceInfo.u.MixCaps.vDriverVersion;
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MixerCaps->wMid = DeviceInfo.u.MixCaps.wMid;
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MixerCaps->wPid = DeviceInfo.u.MixCaps.wPid;
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break;
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}
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case WAVE_OUT_DEVICE_TYPE :
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{
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LPWAVEOUTCAPS WaveOutCaps = (LPWAVEOUTCAPS) Capabilities;
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@ -706,6 +706,13 @@ WdmAudCapabilities(
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DPRINT("WdmAudCapabilities entered\n");
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if (DeviceInfo->DeviceType == MIXER_DEVICE_TYPE)
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{
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Status = WdmAudMixerCapabilities(DeviceObject, DeviceInfo, ClientInfo);
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return SetIrpIoStatus(Irp, Status, sizeof(WDMAUD_DEVICE_INFO));
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}
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Status = GetFilterIdAndPinId(DeviceObject, DeviceInfo, ClientInfo, &FilterId, &PinId);
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if (!NT_SUCCESS(Status))
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{
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@ -34,6 +34,7 @@ typedef struct
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union
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{
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MIXERCAPSW MixCaps;
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MIXERCONTROLDETAILS MixDetails;
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MIXERLINECONTROLSW MixControls;
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MIXERLINEW MixLine;
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@ -36,14 +36,11 @@ GetSysAudioDeviceCount(
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}
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NTSTATUS
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OpenSysAudioDeviceByIndex(
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GetSysAudioDevicePnpName(
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IN PDEVICE_OBJECT DeviceObject,
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IN ULONG DeviceIndex,
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IN PHANDLE DeviceHandle,
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IN PFILE_OBJECT * FileObject)
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OUT LPWSTR * Device)
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{
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LPWSTR Device;
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HANDLE hDevice;
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ULONG BytesReturned;
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KSP_PIN Pin;
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NTSTATUS Status;
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@ -59,7 +56,6 @@ OpenSysAudioDeviceByIndex(
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Pin.Property.Flags = KSPROPERTY_TYPE_GET;
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Pin.PinId = DeviceIndex;
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DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
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/* query sysaudio for the device path */
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@ -70,20 +66,38 @@ OpenSysAudioDeviceByIndex(
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return STATUS_UNSUCCESSFUL;
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/* allocate buffer for the device */
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Device = ExAllocatePool(NonPagedPool, BytesReturned);
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*Device = ExAllocatePool(NonPagedPool, BytesReturned);
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if (!Device)
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return STATUS_INSUFFICIENT_RESOURCES;
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/* query sysaudio again for the device path */
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Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSPROPERTY) + sizeof(ULONG), (PVOID)Device, BytesReturned, &BytesReturned);
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Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSPROPERTY) + sizeof(ULONG), (PVOID)*Device, BytesReturned, &BytesReturned);
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if (!NT_SUCCESS(Status))
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{
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/* failed */
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ExFreePool(Device);
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ExFreePool(*Device);
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return Status;
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}
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return Status;
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}
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NTSTATUS
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OpenSysAudioDeviceByIndex(
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IN PDEVICE_OBJECT DeviceObject,
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IN ULONG DeviceIndex,
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IN PHANDLE DeviceHandle,
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IN PFILE_OBJECT * FileObject)
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{
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LPWSTR Device = NULL;
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NTSTATUS Status;
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HANDLE hDevice;
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Status = GetSysAudioDevicePnpName(DeviceObject, DeviceIndex, &Device);
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if (!NT_SUCCESS(Status))
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return Status;
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/* now open the device */
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Status = WdmAudOpenSysAudioDevice(Device, &hDevice);
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@ -228,6 +242,122 @@ GetNumOfMixerDevices(
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return Count;
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}
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ULONG
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IsOutputMixer(
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IN PDEVICE_OBJECT DeviceObject,
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IN ULONG DeviceIndex)
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{
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ULONG DeviceCount, Index, Count;
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NTSTATUS Status;
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HANDLE hDevice;
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PFILE_OBJECT FileObject;
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PKSMULTIPLE_ITEM MultipleItem;
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/* get number of devices */
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DeviceCount = GetSysAudioDeviceCount(DeviceObject);
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if (!DeviceCount)
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return 0;
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Index = 0;
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Count = 0;
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do
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{
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/* open the virtual audio device */
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Status = OpenSysAudioDeviceByIndex(DeviceObject, Index, &hDevice, &FileObject);
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if (NT_SUCCESS(Status))
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{
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/* retrieve all available node types */
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Status = GetFilterNodeTypes(FileObject, &MultipleItem);
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if (NT_SUCCESS(Status))
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{
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if (CountNodeType(MultipleItem, (LPGUID)&KSNODETYPE_DAC))
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{
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/* increment (output) mixer count */
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if (DeviceIndex == Count)
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{
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ExFreePool(MultipleItem);
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ObDereferenceObject(FileObject);
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ZwClose(hDevice);
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return TRUE;
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}
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Count++;
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}
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if (CountNodeType(MultipleItem, (LPGUID)&KSNODETYPE_ADC))
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{
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/* increment (input) mixer count */
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if (DeviceIndex == Count)
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{
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ExFreePool(MultipleItem);
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ObDereferenceObject(FileObject);
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ZwClose(hDevice);
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return FALSE;
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}
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Count++;
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}
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ExFreePool(MultipleItem);
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}
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ObDereferenceObject(FileObject);
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ZwClose(hDevice);
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}
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Index++;
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}while(Index < DeviceCount);
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ASSERT(0);
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return FALSE;
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}
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NTSTATUS
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WdmAudMixerCapabilities(
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IN PDEVICE_OBJECT DeviceObject,
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IN PWDMAUD_DEVICE_INFO DeviceInfo,
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IN PWDMAUD_CLIENT ClientInfo)
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{
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NTSTATUS Status;
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LPWSTR Device;
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WCHAR Buffer[100];
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Status = GetSysAudioDevicePnpName(DeviceObject, DeviceInfo->DeviceIndex,&Device);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("Failed to get device name %x\n", Status);
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return Status;
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}
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DeviceInfo->u.MixCaps.cDestinations = 1; //FIXME
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Status = FindProductName(Device, sizeof(Buffer) / sizeof(WCHAR), Buffer);
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/* check for success */
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if (!NT_SUCCESS(Status))
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{
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DeviceInfo->u.MixCaps.szPname[0] = L'\0';
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}
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else
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{
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if (IsOutputMixer(DeviceObject, DeviceInfo->DeviceIndex))
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{
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wcscat(Buffer, L" output");
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}
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else
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{
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wcscat(Buffer, L" Input");
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}
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RtlMoveMemory(DeviceInfo->u.MixCaps.szPname, Buffer, min(MAXPNAMELEN, wcslen(Buffer)+1) * sizeof(WCHAR));
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DeviceInfo->u.MixCaps.szPname[MAXPNAMELEN-1] = L'\0';
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}
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return Status;
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}
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NTSTATUS
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WdmAudControlOpenMixer(
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IN PDEVICE_OBJECT DeviceObject,
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@ -108,4 +108,16 @@ WdmAudOpenSysAudioDevice(
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IN LPWSTR DeviceName,
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OUT PHANDLE Handle);
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NTSTATUS
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FindProductName(
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IN LPWSTR PnpName,
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IN ULONG ProductNameSize,
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OUT LPWSTR ProductName);
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NTSTATUS
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WdmAudMixerCapabilities(
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IN PDEVICE_OBJECT DeviceObject,
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IN PWDMAUD_DEVICE_INFO DeviceInfo,
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IN PWDMAUD_CLIENT ClientInfo);
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#endif
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