[WDMAUD.DRV]

- Implement copying mixer capabilities
[WDMAUD_KERNEL]
- Partly implement retrieving mixer capabilties
- Implement retrieving mixer name

svn path=/trunk/; revision=43138

reactos/dll/win32/wdmaud.drv/wdmaud.c

@@ -125,6 +125,19 @@ GetWdmDeviceCapabilities(
     /* This is pretty much a big hack right now */
     switch ( DeviceType )
     {
+        case MIXER_DEVICE_TYPE:
+        {
+            LPMIXERCAPS MixerCaps = (LPMIXERCAPS) Capabilities;
+
+            CopyWideString(MixerCaps->szPname, DeviceInfo.u.WaveOutCaps.szPname);
+
+            MixerCaps->cDestinations = DeviceInfo.u.MixCaps.cDestinations;
+            MixerCaps->fdwSupport = DeviceInfo.u.MixCaps.fdwSupport;
+            MixerCaps->vDriverVersion = DeviceInfo.u.MixCaps.vDriverVersion;
+            MixerCaps->wMid = DeviceInfo.u.MixCaps.wMid;
+            MixerCaps->wPid = DeviceInfo.u.MixCaps.wPid;
+            break;
+        }
         case WAVE_OUT_DEVICE_TYPE :
         {
             LPWAVEOUTCAPS WaveOutCaps = (LPWAVEOUTCAPS) Capabilities;

reactos/drivers/wdm/audio/legacy/wdmaud/control.c

@@ -706,6 +706,13 @@ WdmAudCapabilities(
 
     DPRINT("WdmAudCapabilities entered\n");
 
+    if (DeviceInfo->DeviceType == MIXER_DEVICE_TYPE)
+    {
+        Status = WdmAudMixerCapabilities(DeviceObject, DeviceInfo, ClientInfo);
+        return SetIrpIoStatus(Irp, Status, sizeof(WDMAUD_DEVICE_INFO));
+    }
+
+
     Status = GetFilterIdAndPinId(DeviceObject, DeviceInfo, ClientInfo, &FilterId, &PinId);
     if (!NT_SUCCESS(Status))
     {

reactos/drivers/wdm/audio/legacy/wdmaud/interface.h

@@ -34,6 +34,7 @@ typedef struct
 
     union
     {
+        MIXERCAPSW    MixCaps;
         MIXERCONTROLDETAILS MixDetails;
         MIXERLINECONTROLSW MixControls;
         MIXERLINEW MixLine;

reactos/drivers/wdm/audio/legacy/wdmaud/mixer.c

@@ -36,14 +36,11 @@ GetSysAudioDeviceCount(
 }
 
 NTSTATUS
-OpenSysAudioDeviceByIndex(
+GetSysAudioDevicePnpName(
     IN  PDEVICE_OBJECT DeviceObject,
     IN  ULONG DeviceIndex,
-    IN  PHANDLE DeviceHandle,
-    IN  PFILE_OBJECT * FileObject)
+    OUT LPWSTR * Device)
 {
-    LPWSTR Device;
-    HANDLE hDevice;
     ULONG BytesReturned;
     KSP_PIN Pin;
     NTSTATUS Status;
@@ -59,7 +56,6 @@ OpenSysAudioDeviceByIndex(
     Pin.Property.Flags = KSPROPERTY_TYPE_GET;
     Pin.PinId = DeviceIndex;
 
-
     DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
 
     /* query sysaudio for the device path */
@@ -70,20 +66,38 @@ OpenSysAudioDeviceByIndex(
         return STATUS_UNSUCCESSFUL;
 
     /* allocate buffer for the device */
-    Device = ExAllocatePool(NonPagedPool, BytesReturned);
+    *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(KSPROPERTY) + sizeof(ULONG), (PVOID)*Device, BytesReturned, &BytesReturned);
 
     if (!NT_SUCCESS(Status))
     {
         /* failed */
-        ExFreePool(Device);
+        ExFreePool(*Device);
         return Status;
     }
 
+    return Status;
+}
+
+NTSTATUS
+OpenSysAudioDeviceByIndex(
+    IN  PDEVICE_OBJECT DeviceObject,
+    IN  ULONG DeviceIndex,
+    IN  PHANDLE DeviceHandle,
+    IN  PFILE_OBJECT * FileObject)
+{
+    LPWSTR Device = NULL;
+    NTSTATUS Status;
+    HANDLE hDevice;
+
+    Status = GetSysAudioDevicePnpName(DeviceObject, DeviceIndex, &Device);
+    if (!NT_SUCCESS(Status))
+        return Status;
+
     /* now open the device */
     Status = WdmAudOpenSysAudioDevice(Device, &hDevice);
 
@@ -228,6 +242,122 @@ GetNumOfMixerDevices(
     return Count;
 }
 
+ULONG
+IsOutputMixer(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN ULONG DeviceIndex)
+{
+    ULONG DeviceCount, Index, Count;
+    NTSTATUS Status;
+    HANDLE hDevice;
+    PFILE_OBJECT FileObject;
+    PKSMULTIPLE_ITEM MultipleItem;
+
+    /* get number of devices */
+    DeviceCount = GetSysAudioDeviceCount(DeviceObject);
+
+    if (!DeviceCount)
+        return 0;
+
+    Index = 0;
+    Count = 0;
+    do
+    {
+        /* open the virtual audio device */
+        Status = OpenSysAudioDeviceByIndex(DeviceObject, Index, &hDevice, &FileObject);
+
+        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 */
+                    if (DeviceIndex == Count)
+                    {
+                        ExFreePool(MultipleItem);
+                        ObDereferenceObject(FileObject);
+                        ZwClose(hDevice);
+                        return TRUE;
+                    }
+
+                    Count++;
+                }
+
+                if (CountNodeType(MultipleItem, (LPGUID)&KSNODETYPE_ADC))
+                {
+                    /* increment (input) mixer count */
+                    if (DeviceIndex == Count)
+                    {
+                        ExFreePool(MultipleItem);
+                        ObDereferenceObject(FileObject);
+                        ZwClose(hDevice);
+                        return FALSE;
+                    }
+                    Count++;
+                }
+                ExFreePool(MultipleItem);
+            }
+            ObDereferenceObject(FileObject);
+            ZwClose(hDevice);
+        }
+
+        Index++;
+    }while(Index < DeviceCount);
+
+    ASSERT(0);
+    return FALSE;
+}
+
+
+
+
+NTSTATUS
+WdmAudMixerCapabilities(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN  PWDMAUD_DEVICE_INFO DeviceInfo,
+    IN  PWDMAUD_CLIENT ClientInfo)
+{
+    NTSTATUS Status;
+    LPWSTR Device;
+    WCHAR Buffer[100];
+
+    Status = GetSysAudioDevicePnpName(DeviceObject, DeviceInfo->DeviceIndex,&Device);
+    if (!NT_SUCCESS(Status))
+    {
+        DPRINT1("Failed to get device name %x\n", Status);
+        return Status;
+    }
+
+    DeviceInfo->u.MixCaps.cDestinations = 1; //FIXME
+
+    Status = FindProductName(Device, sizeof(Buffer) / sizeof(WCHAR), Buffer);
+
+    /* check for success */
+    if (!NT_SUCCESS(Status))
+    {
+        DeviceInfo->u.MixCaps.szPname[0] = L'\0';
+    }
+    else
+    {
+        if (IsOutputMixer(DeviceObject, DeviceInfo->DeviceIndex))
+        {
+            wcscat(Buffer, L" output");
+        }
+        else
+        {
+            wcscat(Buffer, L" Input");
+        }
+        RtlMoveMemory(DeviceInfo->u.MixCaps.szPname, Buffer, min(MAXPNAMELEN, wcslen(Buffer)+1) * sizeof(WCHAR));
+        DeviceInfo->u.MixCaps.szPname[MAXPNAMELEN-1] = L'\0';
+    }
+
+    return Status;
+}
+
+
 NTSTATUS
 WdmAudControlOpenMixer(
     IN  PDEVICE_OBJECT DeviceObject,

reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h

@@ -108,4 +108,16 @@ WdmAudOpenSysAudioDevice(
     IN LPWSTR DeviceName,
     OUT PHANDLE Handle);
 
+NTSTATUS
+FindProductName(
+    IN LPWSTR PnpName,
+    IN ULONG ProductNameSize,
+    OUT LPWSTR ProductName);
+
+NTSTATUS
+WdmAudMixerCapabilities(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN  PWDMAUD_DEVICE_INFO DeviceInfo,
+    IN  PWDMAUD_CLIENT ClientInfo);
+
 #endif