mirror of
https://github.com/reactos/reactos.git
synced 2025-08-02 17:56:06 +00:00
- Rewrite mixer enumeration functions
- WDMAUD should reports a mixer device each time it sees a KSNODETYPE_ADC / KSNODETYPE_DAC svn path=/trunk/; revision=43129
This commit is contained in:
Johannes Anderwald
parent
5a4647d276
commit
fee01ee6d4
2 changed files with 180 additions and 103 deletions
|
|
@ -8,152 +8,224 @@
|
|||
*/
|
||||
#include "wdmaud.h"
|
||||
|
||||
ULONG
|
||||
IsVirtualDeviceATopologyFilter(
|
||||
IN PDEVICE_OBJECT DeviceObject,
|
||||
ULONG VirtualDeviceId)
|
||||
{
|
||||
KSP_PIN Pin;
|
||||
ULONG Count, BytesReturned, Index, NumPins;
|
||||
NTSTATUS Status;
|
||||
KSPIN_COMMUNICATION Communication;
|
||||
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
|
||||
ULONG MixerPinCount;
|
||||
const GUID KSNODETYPE_DAC = {0x507AE360L, 0xC554, 0x11D0, {0x8A, 0x2B, 0x00, 0xA0, 0xC9, 0x25, 0x5A, 0xC1}};
|
||||
const GUID KSNODETYPE_ADC = {0x4D837FE0L, 0xC555, 0x11D0, {0x8A, 0x2B, 0x00, 0xA0, 0xC9, 0x25, 0x5A, 0xC1}};
|
||||
|
||||
Pin.Property.Set = KSPROPSETID_Sysaudio;
|
||||
Pin.Property.Id = KSPROPERTY_SYSAUDIO_DEVICE_COUNT;
|
||||
Pin.Property.Flags = KSPROPERTY_TYPE_GET;
|
||||
ULONG
|
||||
GetSysAudioDeviceCount(
|
||||
IN PDEVICE_OBJECT DeviceObject)
|
||||
{
|
||||
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
|
||||
KSPROPERTY Pin;
|
||||
ULONG Count, BytesReturned;
|
||||
NTSTATUS Status;
|
||||
|
||||
/* setup the query request */
|
||||
Pin.Set = KSPROPSETID_Sysaudio;
|
||||
Pin.Id = KSPROPERTY_SYSAUDIO_DEVICE_COUNT;
|
||||
Pin.Flags = KSPROPERTY_TYPE_GET;
|
||||
|
||||
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
||||
|
||||
/* query sysaudio for the device count */
|
||||
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSPROPERTY), (PVOID)&Count, sizeof(ULONG), &BytesReturned);
|
||||
if (!NT_SUCCESS(Status))
|
||||
return FALSE;
|
||||
return 0;
|
||||
|
||||
if (VirtualDeviceId >= Count)
|
||||
return FALSE;
|
||||
return Count;
|
||||
}
|
||||
|
||||
/* query number of pins */
|
||||
Pin.Reserved = VirtualDeviceId; // see sysaudio
|
||||
NTSTATUS
|
||||
OpenSysAudioDeviceByIndex(
|
||||
IN PDEVICE_OBJECT DeviceObject,
|
||||
IN ULONG DeviceIndex,
|
||||
IN PHANDLE DeviceHandle,
|
||||
IN PFILE_OBJECT * FileObject)
|
||||
{
|
||||
LPWSTR Device;
|
||||
HANDLE hDevice;
|
||||
ULONG BytesReturned;
|
||||
KSP_PIN Pin;
|
||||
NTSTATUS Status;
|
||||
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
|
||||
|
||||
/* first check if the device index is within bounds */
|
||||
if (DeviceIndex >= GetSysAudioDeviceCount(DeviceObject))
|
||||
return STATUS_INVALID_PARAMETER;
|
||||
|
||||
/* setup the query request */
|
||||
Pin.Property.Set = KSPROPSETID_Sysaudio;
|
||||
Pin.Property.Id = KSPROPERTY_SYSAUDIO_DEVICE_INTERFACE_NAME;
|
||||
Pin.Property.Flags = KSPROPERTY_TYPE_GET;
|
||||
Pin.Property.Set = KSPROPSETID_Pin;
|
||||
Pin.Property.Id = KSPROPERTY_PIN_CTYPES;
|
||||
Pin.PinId = 0;
|
||||
Pin.PinId = DeviceIndex;
|
||||
|
||||
|
||||
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
||||
|
||||
/* query sysaudio for the device path */
|
||||
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSPROPERTY) + sizeof(ULONG), NULL, 0, &BytesReturned);
|
||||
|
||||
/* check if the request failed */
|
||||
if (Status != STATUS_BUFFER_TOO_SMALL || BytesReturned == 0)
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
|
||||
/* allocate buffer for the device */
|
||||
Device = ExAllocatePool(NonPagedPool, BytesReturned);
|
||||
if (!Device)
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
|
||||
/* query sysaudio again for the device path */
|
||||
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSPROPERTY) + sizeof(ULONG), (PVOID)Device, BytesReturned, &BytesReturned);
|
||||
|
||||
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSP_PIN), (PVOID)&NumPins, sizeof(ULONG), &BytesReturned);
|
||||
if (!NT_SUCCESS(Status))
|
||||
return FALSE;
|
||||
|
||||
/* enumerate now all pins */
|
||||
MixerPinCount = 0;
|
||||
for(Index = 0; Index < NumPins; Index++)
|
||||
{
|
||||
Pin.PinId = Index;
|
||||
Pin.Property.Id = KSPROPERTY_PIN_COMMUNICATION;
|
||||
Communication = KSPIN_COMMUNICATION_NONE;
|
||||
/* failed */
|
||||
ExFreePool(Device);
|
||||
return Status;
|
||||
}
|
||||
|
||||
/* get pin communication type */
|
||||
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSP_PIN), (PVOID)&Communication, sizeof(KSPIN_COMMUNICATION), &BytesReturned);
|
||||
if (NT_SUCCESS(Status))
|
||||
/* now open the device */
|
||||
Status = WdmAudOpenSysAudioDevice(Device, &hDevice);
|
||||
|
||||
/* free device buffer */
|
||||
ExFreePool(Device);
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return Status;
|
||||
}
|
||||
|
||||
*DeviceHandle = hDevice;
|
||||
|
||||
if (FileObject)
|
||||
{
|
||||
Status = ObReferenceObjectByHandle(hDevice, FILE_READ_DATA | FILE_WRITE_DATA, IoFileObjectType, KernelMode, (PVOID*)FileObject, NULL);
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
if (Communication == KSPIN_COMMUNICATION_NONE)
|
||||
MixerPinCount++;
|
||||
ZwClose(hDevice);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
if (MixerPinCount == NumPins)
|
||||
return Status;
|
||||
}
|
||||
|
||||
NTSTATUS
|
||||
GetFilterNodeTypes(
|
||||
PFILE_OBJECT FileObject,
|
||||
PKSMULTIPLE_ITEM * Item)
|
||||
{
|
||||
NTSTATUS Status;
|
||||
ULONG BytesReturned;
|
||||
PKSMULTIPLE_ITEM MultipleItem;
|
||||
KSPROPERTY Property;
|
||||
|
||||
/* setup query request */
|
||||
Property.Id = KSPROPERTY_TOPOLOGY_NODES;
|
||||
Property.Flags = KSPROPERTY_TYPE_GET;
|
||||
Property.Set = KSPROPSETID_Topology;
|
||||
|
||||
/* query for required size */
|
||||
Status = KsSynchronousIoControlDevice(FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), NULL, 0, &BytesReturned);
|
||||
|
||||
/* check for success */
|
||||
if (Status != STATUS_MORE_ENTRIES)
|
||||
return Status;
|
||||
|
||||
/* allocate buffer */
|
||||
MultipleItem = (PKSMULTIPLE_ITEM)ExAllocatePool(NonPagedPool, BytesReturned);
|
||||
if (!MultipleItem)
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
|
||||
/* query for required size */
|
||||
Status = KsSynchronousIoControlDevice(FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), (PVOID)MultipleItem, BytesReturned, &BytesReturned);
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
/* filter has no pins which can be instantiated -> topology filter */
|
||||
return TRUE;
|
||||
/* failed */
|
||||
ExFreePool(MultipleItem);
|
||||
return Status;
|
||||
}
|
||||
|
||||
return FALSE;
|
||||
*Item = MultipleItem;
|
||||
return Status;
|
||||
}
|
||||
|
||||
ULONG
|
||||
GetNumOfMixerPinsFromTopologyFilter(
|
||||
IN PDEVICE_OBJECT DeviceObject,
|
||||
ULONG VirtualDeviceId)
|
||||
CountNodeType(
|
||||
PKSMULTIPLE_ITEM MultipleItem,
|
||||
LPGUID NodeType)
|
||||
{
|
||||
KSP_PIN Pin;
|
||||
ULONG BytesReturned, Index, NumPins;
|
||||
NTSTATUS Status;
|
||||
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
|
||||
PKSMULTIPLE_ITEM MultipleItem;
|
||||
PKSTOPOLOGY_CONNECTION Conn;
|
||||
ULONG Count;
|
||||
ULONG Index;
|
||||
LPGUID Guid;
|
||||
|
||||
Pin.PinId = 0;
|
||||
Pin.Reserved = VirtualDeviceId;
|
||||
Pin.Property.Set = KSPROPSETID_Topology;
|
||||
Pin.Property.Id = KSPROPERTY_TOPOLOGY_CONNECTIONS;
|
||||
Pin.Property.Flags = KSPROPERTY_TYPE_GET;
|
||||
Count = 0;
|
||||
Guid = (LPGUID)(MultipleItem+1);
|
||||
|
||||
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
||||
|
||||
BytesReturned = 0;
|
||||
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSP_PIN), (PVOID)NULL, 0, &BytesReturned);
|
||||
|
||||
if (Status != STATUS_BUFFER_TOO_SMALL)
|
||||
return 0;
|
||||
|
||||
MultipleItem = ExAllocatePool(NonPagedPool, BytesReturned);
|
||||
if (!MultipleItem)
|
||||
return 0;
|
||||
|
||||
RtlZeroMemory(MultipleItem, BytesReturned);
|
||||
|
||||
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSP_PIN), (PVOID)MultipleItem, BytesReturned, &BytesReturned);
|
||||
if (!NT_SUCCESS(Status))
|
||||
/* iterate through node type array */
|
||||
for(Index = 0; Index < MultipleItem->Count; Index++)
|
||||
{
|
||||
ExFreePool(MultipleItem);
|
||||
return 0;
|
||||
}
|
||||
|
||||
Conn = (PKSTOPOLOGY_CONNECTION)(MultipleItem + 1);
|
||||
NumPins = 0;
|
||||
for (Index = 0; Index < MultipleItem->Count; Index++)
|
||||
{
|
||||
if (Conn[Index].ToNode == PCFILTER_NODE)
|
||||
if (IsEqualGUIDAligned(NodeType, Guid))
|
||||
{
|
||||
NumPins++;
|
||||
/* found matching guid */
|
||||
Count++;
|
||||
}
|
||||
Guid++;
|
||||
}
|
||||
|
||||
ExFreePool(MultipleItem);
|
||||
return NumPins;
|
||||
return Count;
|
||||
}
|
||||
|
||||
ULONG
|
||||
GetNumOfMixerDevices(
|
||||
IN PDEVICE_OBJECT DeviceObject)
|
||||
{
|
||||
KSP_PIN Pin;
|
||||
ULONG Count, BytesReturned, Index, NumPins;
|
||||
ULONG DeviceCount, Index, Count;
|
||||
NTSTATUS Status;
|
||||
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
|
||||
HANDLE hDevice;
|
||||
PFILE_OBJECT FileObject;
|
||||
PKSMULTIPLE_ITEM MultipleItem;
|
||||
|
||||
Pin.Property.Set = KSPROPSETID_Sysaudio;
|
||||
Pin.Property.Id = KSPROPERTY_SYSAUDIO_DEVICE_COUNT;
|
||||
Pin.Property.Flags = KSPROPERTY_TYPE_GET;
|
||||
/* get number of devices */
|
||||
DeviceCount = GetSysAudioDeviceCount(DeviceObject);
|
||||
|
||||
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
||||
|
||||
Count = 0;
|
||||
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSPROPERTY), (PVOID)&Count, sizeof(ULONG), &BytesReturned);
|
||||
if (!NT_SUCCESS(Status) || !Count)
|
||||
if (!DeviceCount)
|
||||
return 0;
|
||||
|
||||
NumPins = 0;
|
||||
for(Index = 0; Index < Count; Index++)
|
||||
Index = 0;
|
||||
Count = 0;
|
||||
do
|
||||
{
|
||||
if (IsVirtualDeviceATopologyFilter(DeviceObject, Index))
|
||||
{
|
||||
NumPins += GetNumOfMixerPinsFromTopologyFilter(DeviceObject, Index);
|
||||
}
|
||||
}
|
||||
/* open the virtual audio device */
|
||||
Status = OpenSysAudioDeviceByIndex(DeviceObject, Index, &hDevice, &FileObject);
|
||||
|
||||
return NumPins;
|
||||
if (NT_SUCCESS(Status))
|
||||
{
|
||||
/* retrieve all available node types */
|
||||
Status = GetFilterNodeTypes(FileObject, &MultipleItem);
|
||||
if (NT_SUCCESS(Status))
|
||||
{
|
||||
if (CountNodeType(MultipleItem, (LPGUID)&KSNODETYPE_DAC))
|
||||
{
|
||||
/* increment (output) mixer count */
|
||||
Count++;
|
||||
}
|
||||
|
||||
if (CountNodeType(MultipleItem, (LPGUID)&KSNODETYPE_ADC))
|
||||
{
|
||||
/* increment (input) mixer count */
|
||||
Count++;
|
||||
}
|
||||
ExFreePool(MultipleItem);
|
||||
}
|
||||
ObDereferenceObject(FileObject);
|
||||
ZwClose(hDevice);
|
||||
}
|
||||
|
||||
Index++;
|
||||
}while(Index < DeviceCount);
|
||||
|
||||
return Count;
|
||||
}
|
||||
|
||||
NTSTATUS
|
||||
|
|
|
|||
|
|
@ -103,4 +103,9 @@ SetIrpIoStatus(
|
|||
IN NTSTATUS Status,
|
||||
IN ULONG Length);
|
||||
|
||||
NTSTATUS
|
||||
WdmAudOpenSysAudioDevice(
|
||||
IN LPWSTR DeviceName,
|
||||
OUT PHANDLE Handle);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue