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https://github.com/reactos/reactos.git
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- Reimplement SysAudio device initilization
- Register Plug&Play notification for KS_CATEGORY_AUDIO events svn path=/trunk/; revision=39105
This commit is contained in:
Johannes Anderwald
parent
5284f4a283
commit
967d764b06
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@ -10,100 +10,181 @@
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*/
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#include <ntddk.h>
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/* #include <ks.h> */
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#include <ks.h>
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#include <debug.h>
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//#include <dxsdk/mediaobj.h>
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#include "sysaudio.h"
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NTSTATUS
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NTAPI
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SysAudio_Create(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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DPRINT("SysAudio_Create called\n");
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/* TODO */
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/* Complete the request */
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_SUCCESS;
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}
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const GUID KS_CATEGORY_AUDIO = {0x6994AD04, 0x93EF, 0x11D0, {0xA3, 0xCC, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
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VOID
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NTAPI
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SysAudio_Unload(IN PDRIVER_OBJECT DriverObject)
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{
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PDEVICE_OBJECT DeviceObject;
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DPRINT("SysAudio_Unload called\n");
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/* Get DO and DE */
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DeviceObject = DriverObject->DeviceObject;
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/* DeviceExtension = DeviceObject->DeviceExtension;*/
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/* Delete the object */
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IoDeleteDevice(DeviceObject);
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}
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#if 0
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VOID
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NTSTATUS
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NTAPI
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SysAudio_StartIo(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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SysAudio_Pnp(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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/* TODO */
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PIO_STACK_LOCATION IrpStack;
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UNICODE_STRING SymlinkName = RTL_CONSTANT_STRING(L"\\DosDevices\\sysaudio");
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SYSAUDIODEVEXT *DeviceExtension;
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DPRINT("SysAudio_StartIo called\n");
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DPRINT1("SysAudio_Pnp called\n");
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/* Complete the request and start the next packet */
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Irp->IoStatus.Status = Status;
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Irp->IoStatus.Information = 0;
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IoStartNextPacket(DeviceObject, TRUE);
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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IrpStack = IoGetCurrentIrpStackLocation(Irp);
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DeviceExtension = (SYSAUDIODEVEXT*)DeviceObject->DeviceExtension;
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if (IrpStack->MinorFunction == IRP_MN_REMOVE_DEVICE)
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{
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if (DeviceExtension->EchoCancelNotificationEntry)
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IoUnregisterPlugPlayNotification(DeviceExtension->EchoCancelNotificationEntry);
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if (DeviceExtension->KsAudioNotificationEntry)
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IoUnregisterPlugPlayNotification(DeviceExtension->KsAudioNotificationEntry);
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IoDeleteSymbolicLink(&SymlinkName);
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}
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return KsDefaultDispatchPnp(DeviceObject, Irp);
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}
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#endif
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NTSTATUS NTAPI
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NTSTATUS
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NTAPI
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DeviceInterfaceChangeCallback(
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IN PVOID NotificationStructure,
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IN PVOID Context)
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{
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DEVICE_INTERFACE_CHANGE_NOTIFICATION * Event = (DEVICE_INTERFACE_CHANGE_NOTIFICATION*)NotificationStructure;
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DPRINT1("DeviceInterfaceChangeCallback called %p\n", Event);
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return STATUS_SUCCESS;
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}
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NTSTATUS
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NTAPI
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DispatchCreate(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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DPRINT1("DispatchCreate\n");
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return STATUS_SUCCESS;
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}
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NTSTATUS
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NTAPI
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SysAudio_AddDevice(
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IN PDRIVER_OBJECT DriverObject,
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IN PDEVICE_OBJECT PhysicalDeviceObject)
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{
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NTSTATUS status;
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NTSTATUS Status;
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UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\Device\\sysaudio");
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UNICODE_STRING SymlinkName = RTL_CONSTANT_STRING(L"\\DosDevices\\sysaudio");
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PDEVICE_OBJECT DeviceObject;
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PDEVICE_OBJECT NextDeviceObject;
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KSOBJECT_CREATE_ITEM CreateItem;
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SYSAUDIODEVEXT *DeviceExtension;
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DPRINT("SysAudio_AddDevice called\n");
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status = IoCreateDevice(DriverObject,
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0, /* Extension size */
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/* create the device */
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Status = IoCreateDevice(DriverObject,
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sizeof(SYSAUDIODEVEXT),
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&DeviceName,
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FILE_DEVICE_SOUND, /* is this right? */
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0, /* Characteristics */
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FILE_DEVICE_KS,
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0,
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FALSE,
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&DeviceObject);
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if ( ! NT_SUCCESS(status) )
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/* check for success */
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if (!NT_SUCCESS(Status))
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{
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DPRINT("Failed to create \\Device\\sysaudio !\n");
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return status;
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return Status;
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}
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status = IoCreateSymbolicLink(&SymlinkName, &DeviceName);
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if ( ! NT_SUCCESS(status) )
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/* create the symbolic link */
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Status = IoCreateSymbolicLink(&SymlinkName, &DeviceName);
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if (!NT_SUCCESS(Status))
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{
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IoDeleteDevice(DeviceObject);
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DPRINT("Failed to create \\DosDevices\\sysaudio symlink!\n");
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return status;
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return Status;
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}
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DPRINT("Device created successfully\n");
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return STATUS_SUCCESS;
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DeviceExtension = (SYSAUDIODEVEXT*)DeviceObject->DeviceExtension;
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/* initialize device extension */
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RtlZeroMemory(DeviceExtension, sizeof(SYSAUDIODEVEXT));
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KeInitializeMutex(&DeviceExtension->Mutex, 0);
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DeviceExtension->PhysicalDeviceObject = PhysicalDeviceObject;
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/* initialize create item struct */
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RtlZeroMemory(&CreateItem, sizeof(KSOBJECT_CREATE_ITEM));
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CreateItem.Create = DispatchCreate;
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Status = KsAllocateDeviceHeader(&DeviceExtension->KsDeviceHeader,
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1,
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&CreateItem);
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if (NT_SUCCESS(Status))
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{
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NextDeviceObject = IoAttachDeviceToDeviceStack(DeviceObject, PhysicalDeviceObject);
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if (NextDeviceObject)
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{
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/// FIXME
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/// KsSetDevicePnpAndBaseObject(DeviceExtension->KsDeviceHeader, NextDeviceObject, DeviceObject);
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///
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DeviceExtension->NextDeviceObject = NextDeviceObject;
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Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
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PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
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(PVOID)&KS_CATEGORY_AUDIO,
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DriverObject,
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DeviceInterfaceChangeCallback,
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(PVOID)DeviceExtension,
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(PVOID*)&DeviceExtension->KsAudioNotificationEntry);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("IoRegisterPlugPlayNotification failed with %x\n", Status);
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return Status;
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}
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#if 0
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Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
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PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
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&DMOCATEGORY_ACOUSTIC_ECHO_CANCEL,
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DriverObject,
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DeviceInterfaceChangeCallback,
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(PVOID)DeviceExtension,
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&DeviceExtension->EchoCancelNotificationEntry);
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#endif
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("IoRegisterPlugPlayNotification failed with %x\n", Status);
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return Status;
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}
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/* set io flags */
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DeviceObject->Flags |= DO_DIRECT_IO | DO_POWER_PAGABLE;
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/* clear initializing flag */
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DeviceObject->Flags &= ~ DO_DEVICE_INITIALIZING;
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}
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}
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DPRINT("Device SysAudio_AddDevice result %x\n", Status);
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return Status;
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}
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NTSTATUS NTAPI
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@ -113,20 +194,19 @@ DriverEntry(
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{
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DPRINT("System audio graph builder (sysaudio) started\n");
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DriverObject->DriverExtension->AddDevice = SysAudio_AddDevice;
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DriverObject->MajorFunction[IRP_MJ_CREATE] = SysAudio_Create;
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/* We'd want to handle this but does KS need to know? */
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/* DriverObject->MajorFunction[IRP_MJ_PNP] = KsDefaultDispatchPnp;*/
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/* We don't want to handle this though - pass to KS */
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/* DriverObject->MajorFunction[IRP_MJ_POWER] = KsDefaultDispatchPower;*/
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DPRINT1("Setting KS function handlers\n");
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KsSetMajorFunctionHandler(DriverObject, IRP_MJ_CREATE);
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KsSetMajorFunctionHandler(DriverObject, IRP_MJ_CLOSE);
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KsSetMajorFunctionHandler(DriverObject, IRP_MJ_WRITE);
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KsSetMajorFunctionHandler(DriverObject, IRP_MJ_DEVICE_CONTROL);
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DriverObject->MajorFunction[IRP_MJ_POWER] = KsDefaultDispatchPower;
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DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = KsDefaultForwardIrp;
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DriverObject->MajorFunction[IRP_MJ_PNP] = SysAudio_Pnp;
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DriverObject->DriverUnload = SysAudio_Unload;
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/* DriverObject->DriverStartIo = SysAudio_StartIo; */
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/* Hmm, shouldn't KS.SYS be involved in some way? */
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DriverObject->DriverExtension->AddDevice = SysAudio_AddDevice;
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return STATUS_SUCCESS;
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}
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20
reactos/drivers/wdm/audio/sysaudio/sysaudio.h
Normal file
20
reactos/drivers/wdm/audio/sysaudio/sysaudio.h
Normal file
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@ -0,0 +1,20 @@
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#ifndef SYSAUDIO_H__
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#define SYSAUDIO_H__
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typedef struct
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{
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PDEVICE_OBJECT PhysicalDeviceObject;
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PDEVICE_OBJECT NextDeviceObject;
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KSDEVICE_HEADER KsDeviceHeader;
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PVOID KsAudioNotificationEntry;
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PVOID EchoCancelNotificationEntry;
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KMUTEX Mutex;
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}SYSAUDIODEVEXT;
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#endif
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@ -3,10 +3,9 @@
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<module name="sysaudio" type="kernelmodedriver" installbase="system32/drivers" installname="sysaudio.sys">
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<include base="sysaudio">.</include>
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<library>ntoskrnl</library>
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<library>ks</library>
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<define name="_NTDDK_" />
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<define name="_COMDDK_" />
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<file>main.c</file>
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<file>sysaudio.rc</file>
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</module>
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