mirror of
https://github.com/reactos/reactos.git
synced 2024-09-21 18:17:19 +00:00
c424146e2c
svn path=/branches/cmake-bringup/; revision=48236
283 lines
7.9 KiB
C
283 lines
7.9 KiB
C
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS Kernel Streaming
|
|
* FILE: drivers/wdm/audio/legacy/wdmaud/main.c
|
|
* PURPOSE: System Audio graph builder
|
|
* PROGRAMMER: Andrew Greenwood
|
|
* Johannes Anderwald
|
|
*/
|
|
#include "wdmaud.h"
|
|
|
|
const GUID KSCATEGORY_SYSAUDIO = {0xA7C7A5B1L, 0x5AF3, 0x11D1, {0x9C, 0xED, 0x00, 0xA0, 0x24, 0xBF, 0x04, 0x07}};
|
|
const GUID KSCATEGORY_WDMAUD = {0x3E227E76L, 0x690D, 0x11D2, {0x81, 0x61, 0x00, 0x00, 0xF8, 0x77, 0x5B, 0xF1}};
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
WdmAudInstallDevice(
|
|
IN PDRIVER_OBJECT DriverObject)
|
|
{
|
|
UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\Device\\wdmaud");
|
|
UNICODE_STRING SymlinkName = RTL_CONSTANT_STRING(L"\\DosDevices\\wdmaud");
|
|
PDEVICE_OBJECT DeviceObject;
|
|
NTSTATUS Status;
|
|
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
|
|
|
|
DPRINT("WdmAudInstallDevice called\n");
|
|
|
|
Status = IoCreateDevice(DriverObject,
|
|
sizeof(WDMAUD_DEVICE_EXTENSION),
|
|
&DeviceName,
|
|
FILE_DEVICE_KS,
|
|
0,
|
|
FALSE,
|
|
&DeviceObject);
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DPRINT1("IoCreateDevice failed with %x\n", Status);
|
|
return Status;
|
|
}
|
|
|
|
/* clear device extension */
|
|
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
RtlZeroMemory(DeviceExtension, sizeof(WDMAUD_DEVICE_EXTENSION));
|
|
|
|
/* register device interfaces */
|
|
Status = WdmAudRegisterDeviceInterface(DeviceObject, DeviceExtension);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DPRINT1("WdmRegisterDeviceInterface failed with %x\n", Status);
|
|
IoDeleteDevice(DeviceObject);
|
|
return Status;
|
|
}
|
|
|
|
/* initialize sysaudio device list */
|
|
InitializeListHead(&DeviceExtension->SysAudioDeviceList);
|
|
|
|
/* initialize client context device list */
|
|
InitializeListHead(&DeviceExtension->WdmAudClientList);
|
|
|
|
/* initialize spinlock */
|
|
KeInitializeSpinLock(&DeviceExtension->Lock);
|
|
|
|
/* find available sysaudio devices */
|
|
Status = WdmAudOpenSysAudioDevices(DeviceObject, DeviceExtension);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DPRINT1("WdmAudOpenSysAudioDevices failed with %x\n", Status);
|
|
IoDeleteSymbolicLink(&SymlinkName);
|
|
IoDeleteDevice(DeviceObject);
|
|
return Status;
|
|
}
|
|
/* allocate ks device header */
|
|
Status = KsAllocateDeviceHeader(&DeviceExtension->DeviceHeader, 0, NULL);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DPRINT1("KsAllocateDeviceHeader failed with %x\n", Status);
|
|
IoDeleteSymbolicLink(&SymlinkName);
|
|
IoDeleteDevice(DeviceObject);
|
|
return Status;
|
|
}
|
|
|
|
Status = WdmAudMixerInitialize(DeviceObject);
|
|
DPRINT("WdmAudMixerInitialize Status %x WaveIn %lu WaveOut %lu Mixer %lu\n", Status, WdmAudGetWaveInDeviceCount(), WdmAudGetWaveOutDeviceCount(), WdmAudGetMixerDeviceCount());
|
|
|
|
DeviceObject->Flags |= DO_DIRECT_IO | DO_POWER_PAGABLE;
|
|
DeviceObject->Flags &= ~ DO_DEVICE_INITIALIZING;
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
VOID
|
|
NTAPI
|
|
WdmAudUnload(
|
|
IN PDRIVER_OBJECT driver)
|
|
{
|
|
DPRINT("WdmAudUnload called\n");
|
|
}
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
WdmAudPnp(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp)
|
|
{
|
|
PIO_STACK_LOCATION IrpStack;
|
|
|
|
DPRINT("WdmAudPnp called\n");
|
|
|
|
IrpStack = IoGetCurrentIrpStackLocation(Irp);
|
|
|
|
if (IrpStack->MinorFunction == IRP_MN_QUERY_PNP_DEVICE_STATE)
|
|
{
|
|
Irp->IoStatus.Information |= PNP_DEVICE_NOT_DISABLEABLE;
|
|
return KsDefaultDispatchPnp(DeviceObject, Irp);
|
|
}
|
|
return KsDefaultDispatchPnp(DeviceObject, Irp);
|
|
}
|
|
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
WdmAudCreate(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp)
|
|
{
|
|
NTSTATUS Status;
|
|
PIO_STACK_LOCATION IoStack;
|
|
PWDMAUD_CLIENT pClient;
|
|
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
|
|
|
|
/* get device extension */
|
|
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
#if KS_IMPLEMENTED
|
|
Status = KsReferenceSoftwareBusObject((KSDEVICE_HEADER)DeviceObject->DeviceExtension);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DPRINT1("KsReferenceSoftwareBusObject failed with %x\n", Status);
|
|
return Status;
|
|
}
|
|
#endif
|
|
|
|
Status = WdmAudOpenSysaudio(DeviceObject, &pClient);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DPRINT1("Failed to open sysaudio!\n");
|
|
|
|
/* complete and forget */
|
|
Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
/* done */
|
|
return STATUS_UNSUCCESSFUL;
|
|
}
|
|
|
|
IoStack = IoGetCurrentIrpStackLocation(Irp);
|
|
ASSERT(IoStack->FileObject);
|
|
|
|
/* store client context in file object */
|
|
IoStack->FileObject->FsContext = pClient;
|
|
Status = STATUS_SUCCESS;
|
|
|
|
Irp->IoStatus.Status = Status;
|
|
Irp->IoStatus.Information = 0;
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
return Status;
|
|
}
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
WdmAudClose(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp)
|
|
{
|
|
/* nothing to do complete request */
|
|
#if KS_IMPLEMENTED
|
|
Status = KsDereferenceSoftwareBusObject(DeviceExtension->DeviceHeader);
|
|
|
|
if (NT_SUCCESS(Status))
|
|
{
|
|
if (DeviceExtension->SysAudioNotification)
|
|
Status = IoUnregisterPlugPlayNotification(DeviceExtension->SysAudioNotification);
|
|
}
|
|
#endif
|
|
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
Irp->IoStatus.Information = 0;
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
/* done */
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
WdmAudCleanup(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp)
|
|
{
|
|
PIO_STACK_LOCATION IoStack;
|
|
PWDMAUD_CLIENT pClient;
|
|
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
|
|
ULONG Index;
|
|
KIRQL OldIrql;
|
|
|
|
/* get device extension */
|
|
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
/* get current irp stack location */
|
|
IoStack = IoGetCurrentIrpStackLocation(Irp);
|
|
|
|
/* sanity check */
|
|
ASSERT(IoStack->FileObject);
|
|
|
|
/* get client context struct */
|
|
pClient = (PWDMAUD_CLIENT)IoStack->FileObject->FsContext;
|
|
|
|
/* sanity check */
|
|
ASSERT(pClient);
|
|
|
|
/* acquire client context list lock */
|
|
KeAcquireSpinLock(&DeviceExtension->Lock, &OldIrql);
|
|
|
|
/* remove entry */
|
|
RemoveEntryList(&pClient->Entry);
|
|
|
|
/* release lock */
|
|
KeReleaseSpinLock(&DeviceExtension->Lock, OldIrql);
|
|
|
|
/* check if all audio pins have been closed */
|
|
for (Index = 0; Index < pClient->NumPins; Index++)
|
|
{
|
|
DPRINT("Index %u Pin %p Type %x\n", Index, pClient->hPins[Index].Handle, pClient->hPins[Index].Type);
|
|
if (pClient->hPins[Index].Handle && pClient->hPins[Index].Type != MIXER_DEVICE_TYPE)
|
|
{
|
|
/* found an still open audio pin */
|
|
ZwClose(pClient->hPins[Index].Handle);
|
|
}
|
|
}
|
|
|
|
/* free pin array */
|
|
if (pClient->hPins)
|
|
FreeItem(pClient->hPins);
|
|
|
|
/* free client context struct */
|
|
FreeItem(pClient);
|
|
|
|
/* clear old client pointer */
|
|
IoStack->FileObject->FsContext = NULL;
|
|
|
|
/* complete request */
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
Irp->IoStatus.Information = 0;
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
/* done */
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
DriverEntry(
|
|
IN PDRIVER_OBJECT Driver,
|
|
IN PUNICODE_STRING Registry_path
|
|
)
|
|
{
|
|
DPRINT("Wdmaud.sys loaded\n");
|
|
|
|
Driver->DriverUnload = WdmAudUnload;
|
|
|
|
Driver->MajorFunction[IRP_MJ_CREATE] = WdmAudCreate;
|
|
Driver->MajorFunction[IRP_MJ_CLOSE] = WdmAudClose;
|
|
Driver->MajorFunction[IRP_MJ_PNP] = WdmAudPnp;
|
|
Driver->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = KsDefaultForwardIrp;
|
|
Driver->MajorFunction[IRP_MJ_CLEANUP] = WdmAudCleanup;
|
|
Driver->MajorFunction[IRP_MJ_DEVICE_CONTROL] = WdmAudDeviceControl;
|
|
Driver->MajorFunction[IRP_MJ_WRITE] = WdmAudReadWrite;
|
|
Driver->MajorFunction[IRP_MJ_READ] = WdmAudReadWrite;
|
|
Driver->MajorFunction[IRP_MJ_POWER] = KsDefaultDispatchPower;
|
|
|
|
return WdmAudInstallDevice(Driver);
|
|
}
|