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- Implement enumerating sysaudio devices using device interface or using static symbolic link(hack)

Browse source 
- Implement a few options of sysaudio property set
- Implement an object dispatcher like in portcls which will be used to forward requests



svn path=/trunk/; revision=39694
This commit is contained in:
Johannes Anderwald 2009-02-20 17:52:47 +00:00
parent 31877406c6
commit 82bba6cd0c
12 changed files with 1236 additions and 430 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

57
reactos/drivers/wdm/audio/legacy/wdmaud/control.c Normal file
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@ -0,0 +1,57 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Kernel Streaming
* FILE: drivers/wdm/audio/legacy/wdmaud/deviface.c
* PURPOSE: System Audio graph builder
* PROGRAMMER: Andrew Greenwood
* Johannes Anderwald
*/
#include "wdmaud.h"
NTSTATUS
NTAPI
WdmAudDeviceControl(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
PIO_STACK_LOCATION IoStack;
IoStack = IoGetCurrentIrpStackLocation(Irp);
if (IoStack->Parameters.DeviceIoControl.InputBufferLength < sizeof(WDMAUD_DEVICE_INFO))
{
Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_INVALID_PARAMETER;
}
DPRINT1("WdmAudDeviceControl entered\n");
switch(IoStack->Parameters.DeviceIoControl.IoControlCode)
{
case IOCTL_OPEN_WDMAUD:
//return WdmAudDeviceControlOpen(DeviceObject, Irp);
case IOCTL_CLOSE_WDMAUD:
case IOCTL_GETNUMDEVS_TYPE:
case IOCTL_SETDEVICE_STATE:
case IOCTL_GETDEVID:
case IOCTL_GETVOLUME:
case IOCTL_SETVOLUME:
case IOCTL_GETCAPABILITIES:
case IOCTL_WRITEDATA:
break;
}
UNIMPLEMENTED
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_SUCCESS;
}

237
reactos/drivers/wdm/audio/legacy/wdmaud/deviface.c Normal file
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@ -0,0 +1,237 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Kernel Streaming
* FILE: drivers/wdm/audio/legacy/wdmaud/deviface.c
* PURPOSE: System Audio graph builder
* PROGRAMMER: Andrew Greenwood
* Johannes Anderwald
*/
#include "wdmaud.h"
NTSTATUS
WdmAudOpenSysAudioDevice(
IN LPWSTR DeviceName,
OUT PHANDLE Handle)
{
UNICODE_STRING SymbolicLink;
OBJECT_ATTRIBUTES ObjectAttributes;
IO_STATUS_BLOCK IoStatusBlock;
NTSTATUS Status;
RtlInitUnicodeString(&SymbolicLink, DeviceName);
InitializeObjectAttributes(&ObjectAttributes, &SymbolicLink, OBJ_OPENIF | OBJ_KERNEL_HANDLE, NULL, NULL);
Status = IoCreateFile(Handle,
SYNCHRONIZE | GENERIC_READ | GENERIC_WRITE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
0,
FILE_OPEN,
FILE_SYNCHRONOUS_IO_NONALERT,
NULL,
0,
CreateFileTypeNone,
NULL,
IO_NO_PARAMETER_CHECKING | IO_FORCE_ACCESS_CHECK);
return Status;
}
NTSTATUS
NTAPI
DeviceInterfaceChangeCallback(
IN PVOID NotificationStructure,
IN PVOID Context)
{
DEVICE_INTERFACE_CHANGE_NOTIFICATION * Event = (DEVICE_INTERFACE_CHANGE_NOTIFICATION*)NotificationStructure;
DPRINT1("DeviceInterfaceChangeCallback called %p\n", Event);
DbgBreakPoint();
return STATUS_SUCCESS;
}
NTSTATUS
WdmAudOpenSysAudioDeviceInterfaces(
IN PWDMAUD_DEVICE_EXTENSION DeviceExtension,
IN LPWSTR SymbolicLinkList)
{
SYSAUDIO_ENTRY * Entry;
ULONG Length;
DPRINT1("WdmAudOpenSysAudioDeviceInterfaces called\n");
while(*SymbolicLinkList)
{
Length = wcslen(SymbolicLinkList) + 1;
Entry = (SYSAUDIO_ENTRY*)ExAllocatePool(NonPagedPool, sizeof(SYSAUDIO_ENTRY) + Length * sizeof(WCHAR));
if (!Entry)
{
return STATUS_INSUFFICIENT_RESOURCES;
}
Entry->SymbolicLink.Length = Length * sizeof(WCHAR);
Entry->SymbolicLink.MaximumLength = Length * sizeof(WCHAR);
Entry->SymbolicLink.Buffer = (LPWSTR) (Entry + 1);
wcscpy(Entry->SymbolicLink.Buffer, SymbolicLinkList);
InsertTailList(&DeviceExtension->SysAudioDeviceList, &Entry->Entry);
DeviceExtension->NumSysAudioDevices++;
SymbolicLinkList += Length;
}
return STATUS_SUCCESS;
}
NTSTATUS
WdmAudOpenSysAudioDevices(
IN PDEVICE_OBJECT DeviceObject,
IN PWDMAUD_DEVICE_EXTENSION DeviceExtension)
{
NTSTATUS Status = STATUS_SUCCESS;
LPWSTR SymbolicLinkList;
SYSAUDIO_ENTRY * Entry;
ULONG Length;
UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\Device\\sysaudio");
if (DeviceExtension->DeviceInterfaceSupport)
{
Status = IoGetDeviceInterfaces(&KSCATEGORY_SYSAUDIO,
NULL,
0,
&SymbolicLinkList);
if (NT_SUCCESS(Status))
{
WdmAudOpenSysAudioDeviceInterfaces(DeviceExtension, SymbolicLinkList);
ExFreePool(SymbolicLinkList);
}
Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
(PVOID)&KSCATEGORY_SYSAUDIO,
DeviceObject->DriverObject,
DeviceInterfaceChangeCallback,
(PVOID)DeviceExtension,
&DeviceExtension->SysAudioNotification);
}
else
{
Length = wcslen(DeviceName.Buffer) + 1;
Entry = (SYSAUDIO_ENTRY*)ExAllocatePool(NonPagedPool, sizeof(SYSAUDIO_ENTRY) + Length * sizeof(WCHAR));
if (!Entry)
{
return STATUS_INSUFFICIENT_RESOURCES;
}
Entry->SymbolicLink.Length = Entry->SymbolicLink.MaximumLength = Length * sizeof(WCHAR);
Entry->SymbolicLink.MaximumLength += sizeof(WCHAR);
Entry->SymbolicLink.Buffer = (LPWSTR) (Entry + 1);
wcscpy(Entry->SymbolicLink.Buffer, DeviceName.Buffer);
InsertTailList(&DeviceExtension->SysAudioDeviceList, &Entry->Entry);
DeviceExtension->NumSysAudioDevices++;
}
return Status;
}
NTSTATUS
WdmAudRegisterDeviceInterface(
IN PDEVICE_OBJECT PhysicalDeviceObject,
IN PWDMAUD_DEVICE_EXTENSION DeviceExtension)
{
NTSTATUS Status;
UNICODE_STRING SymlinkName = RTL_CONSTANT_STRING(L"\\DosDevices\\wdmaud");
UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\Device\\wdmaud");
UNICODE_STRING SymbolicLinkName;
Status = IoRegisterDeviceInterface(PhysicalDeviceObject, &KSCATEGORY_WDMAUD, NULL, &SymbolicLinkName);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLinkName, TRUE);
RtlFreeUnicodeString(&SymbolicLinkName);
DeviceExtension->DeviceInterfaceSupport = TRUE;
return Status;
}
/* failed to register device interface
* create a symbolic link instead
*/
DeviceExtension->DeviceInterfaceSupport = FALSE;
Status = IoCreateSymbolicLink(&SymlinkName, &DeviceName);
if (!NT_SUCCESS(Status))
{
IoDeleteDevice(PhysicalDeviceObject); //FIXME
DPRINT("Failed to create wdmaud symlink!\n");
return Status;
}
return Status;
}
NTSTATUS
WdmAudOpenSysaudio(
IN PDEVICE_OBJECT DeviceObject,
IN PWDMAUD_CLIENT *pClient)
{
PWDMAUD_CLIENT Client;
NTSTATUS Status;
HANDLE hSysAudio;
PSYSAUDIO_ENTRY SysEntry;
PFILE_OBJECT FileObject;
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
if (!DeviceExtension->NumSysAudioDevices)
return STATUS_UNSUCCESSFUL;
ASSERT(!IsListEmpty(&DeviceExtension->SysAudioDeviceList));
Client = ExAllocatePool(NonPagedPool, sizeof(WDMAUD_CLIENT));
if (!Client)
{
return STATUS_INSUFFICIENT_RESOURCES;
}
RtlZeroMemory(Client, sizeof(WDMAUD_CLIENT));
/* open the first sysaudio device available */
SysEntry = (PSYSAUDIO_ENTRY)DeviceExtension->SysAudioDeviceList.Flink;
DPRINT1("Opening device %S\n", SysEntry->SymbolicLink.Buffer);
Status = WdmAudOpenSysAudioDevice(SysEntry->SymbolicLink.Buffer, &hSysAudio);
if (!NT_SUCCESS(Status))
{
DPRINT1("Failed to open sysaudio %x\n", Status);
ExFreePool(Client);
return Status;
}
/* get the file object */
Status = ObReferenceObjectByHandle(hSysAudio, FILE_READ_DATA | FILE_WRITE_DATA, IoFileObjectType, KernelMode, (PVOID*)&FileObject, NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("Failed to reference FileObject %x\n", Status);
ExFreePool(Client);
ZwClose(hSysAudio);
return Status;
}
Client->hSysAudio = hSysAudio;
Client->FileObject = FileObject;
Client->hProcess = PsGetCurrentProcessId();
*pClient = Client;
return STATUS_SUCCESS;
}

238
reactos/drivers/wdm/audio/legacy/wdmaud/entry.c
View file

@ -9,23 +9,24 @@
#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
WdmAudAddDevice(
IN PDRIVER_OBJECT DriverObject,
IN PDEVICE_OBJECT PhysicalDeviceObject)
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;
PDEVICE_OBJECT NextDeviceObject;
NTSTATUS Status;
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
DPRINT("WdmAudAddDevice called\n");
DPRINT1("WdmAudInstallDevice called\n");
Status = IoCreateDevice(DriverObject,
sizeof(WDMAUD_DEVICE_EXTENSION),
NULL,
&DeviceName,
FILE_DEVICE_KS,
0,
FALSE,
@ -37,26 +38,43 @@ WdmAudAddDevice(
return Status;
}
/* clear device extension */
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
RtlZeroMemory(DeviceExtension, sizeof(WDMAUD_DEVICE_EXTENSION));
InitializeListHead(&DeviceExtension->SysAudioDeviceList);
Status = KsAllocateDeviceHeader(&DeviceExtension->DeviceHeader, 0, NULL);
/* register device interfaces */
Status = WdmAudRegisterDeviceInterface(DeviceObject, DeviceExtension);
if (!NT_SUCCESS(Status))
{
DPRINT1("KsAllocateDeviceHeader failed with %x\n", Status);
DPRINT1("WdmRegisterDeviceInterface failed with %x\n", Status);
IoDeleteDevice(DeviceObject);
return Status;
}
NextDeviceObject = IoAttachDeviceToDeviceStack(DeviceObject, PhysicalDeviceObject);
if (NextDeviceObject)
{
/// FIXME
/// KsSetDevicePnpAndBaseObject((KSDEVICE_HEADER)DeviceObject->DeviceExtension, NextDeviceObject, DeviceObject);
}
/* initialize sysaudio device list */
InitializeListHead(&DeviceExtension->SysAudioDeviceList);
/* 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;
}
DeviceObject->Flags |= DO_DIRECT_IO | DO_POWER_PAGABLE;
DeviceObject->Flags &= ~ DO_DEVICE_INITIALIZING;
@ -69,7 +87,7 @@ NTAPI
WdmAudUnload(
IN PDRIVER_OBJECT driver)
{
DPRINT("WdmAudUnload called\n");
DPRINT1("WdmAudUnload called\n");
}
NTSTATUS
@ -80,7 +98,7 @@ WdmAudPnp(
{
PIO_STACK_LOCATION IrpStack;
DPRINT("WdmAudPnp called\n");
DPRINT1("WdmAudPnp called\n");
IrpStack = IoGetCurrentIrpStackLocation(Irp);
@ -92,115 +110,6 @@ WdmAudPnp(
return KsDefaultDispatchPnp(DeviceObject, Irp);
}
NTSTATUS
WdmAudOpenSysAudioDevice(
IN LPWSTR DeviceName,
OUT PHANDLE Handle)
{
UNICODE_STRING SymbolicLink;
OBJECT_ATTRIBUTES ObjectAttributes;
IO_STATUS_BLOCK IoStatusBlock;
NTSTATUS Status;
RtlInitUnicodeString(&SymbolicLink, DeviceName);
InitializeObjectAttributes(&ObjectAttributes, &SymbolicLink, OBJ_OPENIF | OBJ_KERNEL_HANDLE, NULL, NULL);
Status = IoCreateFile(Handle,
SYNCHRONIZE | GENERIC_READ | GENERIC_WRITE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
0,
FILE_OPEN,
FILE_SYNCHRONOUS_IO_NONALERT,
NULL,
0,
CreateFileTypeNone,
NULL,
IO_NO_PARAMETER_CHECKING | IO_FORCE_ACCESS_CHECK);
return Status;
}
NTSTATUS
NTAPI
DeviceInterfaceChangeCallback(
IN PVOID NotificationStructure,
IN PVOID Context)
{
DEVICE_INTERFACE_CHANGE_NOTIFICATION * Event = (DEVICE_INTERFACE_CHANGE_NOTIFICATION*)NotificationStructure;
DPRINT1("DeviceInterfaceChangeCallback called %p\n", Event);
return STATUS_SUCCESS;
}
NTSTATUS
WdmAudOpenSysAudioDeviceInterfaces(
IN PWDMAUD_DEVICE_EXTENSION DeviceExtension,
IN LPWSTR SymbolicLinkList)
{
NTSTATUS Status;
HANDLE Handle;
SYSAUDIO_ENTRY * Entry;
UINT Length;
PFILE_OBJECT FileObject;
ULONG Result;
ULONG BytesReturned;
KSPROPERTY KsPropset = {{STATIC_KSPROPSETID_Sysaudio}, KSPROPERTY_SYSAUDIO_DEVICE_DEFAULT, KSPROPERTY_TYPE_SET};
while(*SymbolicLinkList)
{
Length = wcslen(SymbolicLinkList) + 1;
Status = WdmAudOpenSysAudioDevice(SymbolicLinkList, &Handle);
if (NT_SUCCESS(Status))
{
Status = ObReferenceObjectByHandle(Handle,
FILE_READ_DATA | FILE_WRITE_DATA,
IoFileObjectType,
KernelMode,
(PVOID*)&FileObject,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("ObReferenceObjectByHandle failed with %x\n", Status);
ZwClose(Handle);
}
Entry = (SYSAUDIO_ENTRY*)ExAllocatePool(NonPagedPool, sizeof(SYSAUDIO_ENTRY) + Length * sizeof(WCHAR));
if (!Entry)
{
ZwClose(Handle);
ObDereferenceObject((PVOID)FileObject);
return STATUS_INSUFFICIENT_RESOURCES;
}
Entry->Handle = Handle;
Entry->SymbolicLink.Length = Length * sizeof(WCHAR);
Entry->SymbolicLink.MaximumLength = Length * sizeof(WCHAR);
Entry->SymbolicLink.Buffer = (LPWSTR) (Entry + 1);
Entry->FileObject = FileObject;
wcscpy(Entry->SymbolicLink.Buffer, SymbolicLinkList);
InsertTailList(&DeviceExtension->SysAudioDeviceList, &Entry->Entry);
/* set device as default device */
KsSynchronousIoControlDevice(FileObject,
KernelMode,
IOCTL_KS_PROPERTY,
(PVOID)&KsPropset,
sizeof(KSPROPERTY),
(PVOID)&Result,
sizeof(ULONG),
&BytesReturned);
DeviceExtension->NumSysAudioDevices++;
}
SymbolicLinkList += Length;
}
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
@ -209,15 +118,17 @@ WdmAudCreate(
IN PIRP Irp)
{
NTSTATUS Status;
LPWSTR SymbolicLinkList;
PIO_STACK_LOCATION IoStack;
WDMAUD_CLIENT *pClient;
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
DPRINT1("WdmAudCreate\n");
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
#if 0
#if KS_IMPLEMENTED
Status = KsReferenceSoftwareBusObject((KSDEVICE_HEADER)DeviceObject->DeviceExtension);
if (!NT_SUCCESS(Status))
{
@ -226,26 +137,20 @@ WdmAudCreate(
}
#endif
Status = IoGetDeviceInterfaces(&KSCATEGORY_SYSAUDIO,
NULL,
0,
&SymbolicLinkList);
if (NT_SUCCESS(Status))
Status = WdmAudOpenSysaudio(DeviceObject, &pClient);
if (!NT_SUCCESS(Status))
{
WdmAudOpenSysAudioDeviceInterfaces(DeviceExtension, SymbolicLinkList);
ExFreePool(SymbolicLinkList);
DPRINT1("Failed to open sysaudio!\n");
if (pClient)
ExFreePool(pClient);
}
IoStack = IoGetCurrentIrpStackLocation(Irp);
ASSERT(IoStack->FileObject);
Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
(PVOID)&KSCATEGORY_SYSAUDIO,
DeviceObject->DriverObject,
DeviceInterfaceChangeCallback,
(PVOID)DeviceExtension,
&DeviceExtension->SysAudioNotification);
/* store client context in file object */
IoStack->FileObject->FsContext = pClient;
Status = STATUS_SUCCESS;
Irp->IoStatus.Status = Status;
Irp->IoStatus.Information = 0;
@ -262,19 +167,33 @@ WdmAudClose(
{
NTSTATUS Status = STATUS_SUCCESS;
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
PIO_STACK_LOCATION IoStack;
WDMAUD_CLIENT *pClient;
DPRINT1("WdmAudClose\n");
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
#if 0
#if KS_IMPLEMENTED
Status = KsDereferenceSoftwareBusObject(DeviceExtension->DeviceHeader);
#endif
if (NT_SUCCESS(Status))
{
Status = IoUnregisterPlugPlayNotification(DeviceExtension->SysAudioNotification);
if (DeviceExtension->SysAudioNotification)
Status = IoUnregisterPlugPlayNotification(DeviceExtension->SysAudioNotification);
}
#endif
IoStack = IoGetCurrentIrpStackLocation(Irp);
pClient = (WDMAUD_CLIENT*)IoStack->FileObject->FsContext;
if (pClient)
{
ZwClose(pClient->hSysAudio);
ExFreePool(pClient);
IoStack->FileObject->FsContext = NULL;
}
Irp->IoStatus.Status = Status;
Irp->IoStatus.Information = 0;
@ -283,21 +202,6 @@ WdmAudClose(
return Status;
}
NTSTATUS
NTAPI
WdmAudDeviceControl(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
UNIMPLEMENTED
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
WdmAudCleanup(
@ -321,9 +225,8 @@ DriverEntry(
IN PUNICODE_STRING Registry_path
)
{
DPRINT("Wdmaud.sys loaded\n");
DPRINT1("Wdmaud.sys loaded\n");
Driver->DriverExtension->AddDevice = WdmAudAddDevice;
Driver->DriverUnload = WdmAudUnload;
@ -335,6 +238,5 @@ DriverEntry(
Driver->MajorFunction[IRP_MJ_DEVICE_CONTROL] = WdmAudDeviceControl;
Driver->MajorFunction[IRP_MJ_POWER] = KsDefaultDispatchPower;
return STATUS_SUCCESS;
return WdmAudInstallDevice(Driver);
}

38
reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h
View file

@ -57,28 +57,54 @@ typedef struct
} WAVEINCAPS;
#endif
#include "interface.h"
typedef struct
{
LIST_ENTRY Entry;
HANDLE Handle;
UNICODE_STRING SymbolicLink;
HANDLE hProcess;
HANDLE hSysAudio;
PFILE_OBJECT FileObject;
}SYSAUDIO_ENTRY;
}WDMAUD_CLIENT, *PWDMAUD_CLIENT;
typedef struct
{
LIST_ENTRY Entry;
UNICODE_STRING SymbolicLink;
}SYSAUDIO_ENTRY, *PSYSAUDIO_ENTRY;
typedef struct
{
KSDEVICE_HEADER DeviceHeader;
PVOID SysAudioNotification;
BOOL DeviceInterfaceSupport;
KSPIN_LOCK Lock;
ULONG NumSysAudioDevices;
LIST_ENTRY SysAudioDeviceList;
}WDMAUD_DEVICE_EXTENSION, *PWDMAUD_DEVICE_EXTENSION;
NTSTATUS
WdmAudRegisterDeviceInterface(
IN PDEVICE_OBJECT PhysicalDeviceObject,
IN PWDMAUD_DEVICE_EXTENSION DeviceExtension);
NTSTATUS
WdmAudOpenSysAudioDevices(
IN PDEVICE_OBJECT DeviceObject,
IN PWDMAUD_DEVICE_EXTENSION DeviceExtension);
NTSTATUS
WdmAudOpenSysaudio(
IN PDEVICE_OBJECT DeviceObject,
IN PWDMAUD_CLIENT *pClient);
NTSTATUS
NTAPI
WdmAudDeviceControl(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp);
#endif

4
reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.rbuild
View file

@ -2,8 +2,12 @@
<!DOCTYPE module SYSTEM "../../../../../tools/rbuild/project.dtd">
<module name="wdmaud_kernel" type="kernelmodedriver" installbase="system32/drivers" installname="wdmaud.sys">
<include base="wdmaud_kernel">.</include>
<define name="_COMDDK_" />
<include base="ReactOS">include/reactos/libs/sound</include>
<library>ntoskrnl</library>
<library>ks</library>
<file>control.c</file>
<file>deviface.c</file>
<file>entry.c</file>
<file>wdmaud.rc</file>
</module>

5
reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.rc Normal file
View file

@ -0,0 +1,5 @@
#define REACTOS_VERSION_DLL
#define REACTOS_STR_FILE_DESCRIPTION "Reactos audio mapper driver\0"
#define REACTOS_STR_INTERNAL_NAME "wdmaud\0"
#define REACTOS_STR_ORIGINAL_FILENAME "wdmaud.sys\0"
#include <reactos/version.rc>

291
reactos/drivers/wdm/audio/sysaudio/control.c Normal file
View file

@ -0,0 +1,291 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Kernel Streaming
* FILE: drivers/wdm/audio/sysaudio/control.c
* PURPOSE: System Audio graph builder
* PROGRAMMER: Johannes Anderwald
*/
#include <ntifs.h>
#include <ntddk.h>
#include <portcls.h>
#include <ks.h>
#include <ksmedia.h>
#include <math.h>
#define YDEBUG
#include <debug.h>
#include "sysaudio.h"
const GUID KSPROPSETID_Sysaudio = {0xCBE3FAA0L, 0xCC75, 0x11D0, {0xB4, 0x65, 0x00, 0x00, 0x1A, 0x18, 0x18, 0xE6}};
const GUID KSPROPSETID_Sysaudio_Pin = {0xA3A53220L, 0xC6E4, 0x11D0, {0xB4, 0x65, 0x00, 0x00, 0x1A, 0x18, 0x18, 0xE6}};
const GUID KSPROPSETID_General = {0x1464EDA5L, 0x6A8F, 0x11D1, {0x9A, 0xA7, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
NTSTATUS
SetIrpIoStatus(
IN PIRP Irp,
IN NTSTATUS Status,
IN ULONG Length)
{
Irp->IoStatus.Information = Length;
Irp->IoStatus.Status = Status;
return Status;
}
PKSAUDIO_DEVICE_ENTRY
GetListEntry(
IN PLIST_ENTRY Head,
IN ULONG Index)
{
PLIST_ENTRY Entry = Head->Flink;
while(Index-- && Entry != Head)
Entry = Entry->Flink;
if (Entry == Head)
return NULL;
return (PKSAUDIO_DEVICE_ENTRY)CONTAINING_RECORD(Entry, KSAUDIO_DEVICE_ENTRY, Entry);
}
NTSTATUS
SysAudioOpenVirtualDevice(
IN PIRP Irp,
IN ULONG DeviceNumber,
PSYSAUDIODEVEXT DeviceExtension)
{
PULONG Index;
ULONG Count;
PSYSAUDIO_CLIENT ClientInfo;
PKSAUDIO_DEVICE_ENTRY Entry;
PKSOBJECT_CREATE_ITEM CreateItem;
/* access the create item */
CreateItem = KSCREATE_ITEM_IRP_STORAGE(Irp);
ASSERT(CreateItem);
if (DeviceNumber >= DeviceExtension->NumberOfKsAudioDevices)
{
/* invalid device index */
return SetIrpIoStatus(Irp, STATUS_INVALID_PARAMETER, 0);
}
/* get device context */
Entry = GetListEntry(&DeviceExtension->KsAudioDeviceList, DeviceNumber);
ASSERT(Entry != NULL);
/* get client context */
ClientInfo = (PSYSAUDIO_CLIENT)CreateItem->Context;
/* does the client already use a device */
if (!ClientInfo->NumDevices)
{
/* first device to be openend */
ClientInfo->Devices = ExAllocatePool(NonPagedPool, sizeof(ULONG));
if (!ClientInfo->Devices)
{
/* no memory */
return SetIrpIoStatus(Irp, STATUS_NO_MEMORY, 0);
}
ClientInfo->NumDevices = 1;
ClientInfo->Devices[0] = DeviceNumber;
/* increase usage count */
Entry->NumberOfClients++;
return SetIrpIoStatus(Irp, STATUS_SUCCESS, 0);
}
/* check if device has already been openend */
for(Count = 0; Count < ClientInfo->NumDevices; Count++)
{
if (ClientInfo->Devices[Count] == DeviceNumber)
{
/* device has already been opened */
return SetIrpIoStatus(Irp, STATUS_SUCCESS, 0);
}
}
/* new device to be openend */
Index = ExAllocatePool(NonPagedPool, sizeof(ULONG) * (ClientInfo->NumDevices + 1));
if (!Index)
{
/* no memory */
return SetIrpIoStatus(Irp, STATUS_NO_MEMORY, 0);
}
/* increase usage count */
Entry->NumberOfClients++;
/* copy device count array */
RtlMoveMemory(Index, ClientInfo->Devices, ClientInfo->NumDevices * sizeof(ULONG));
Index[ClientInfo->NumDevices] = DeviceNumber;
ExFreePool(ClientInfo->Devices);
ClientInfo->NumDevices++;
ClientInfo->Devices = Index;
return SetIrpIoStatus(Irp, STATUS_SUCCESS, 0);
}
NTSTATUS
SysAudioHandleProperty(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PIO_STACK_LOCATION IoStack;
NTSTATUS Status = STATUS_NOT_IMPLEMENTED;
KSPROPERTY PropertyRequest;
KSCOMPONENTID ComponentId;
PULONG Index;
PKSPROPERTY Property;
PSYSAUDIODEVEXT DeviceExtension;
PKSAUDIO_DEVICE_ENTRY Entry;
PSYSAUDIO_INSTANCE_INFO InstanceInfo;
PSYSAUDIO_CLIENT ClientInfo;
ULONG Count, BytesReturned;
PKSOBJECT_CREATE_ITEM CreateItem;
UNICODE_STRING GuidString;
/* access the create item */
CreateItem = KSCREATE_ITEM_IRP_STORAGE(Irp);
IoStack = IoGetCurrentIrpStackLocation(Irp);
if (IoStack->Parameters.DeviceIoControl.InputBufferLength < sizeof(KSPROPERTY))
{
/* buffer must be atleast of sizeof KSPROPERTY */
return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(KSPROPERTY));
}
Property = (PKSPROPERTY)IoStack->Parameters.DeviceIoControl.Type3InputBuffer;
DeviceExtension = (PSYSAUDIODEVEXT)DeviceObject->DeviceExtension;
if (IsEqualGUIDAligned(&Property->Set, &KSPROPSETID_Sysaudio))
{
if (Property->Id == KSPROPERTY_SYSAUDIO_COMPONENT_ID)
{
if (IoStack->Parameters.DeviceIoControl.InputBufferLength < sizeof(KSPROPERTY) + sizeof(ULONG))
{
/* too small buffer */
return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(KSPROPERTY) + sizeof(ULONG));
}
if (IoStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(KSCOMPONENTID))
{
/* too small buffer */
return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(KSCOMPONENTID));
}
Index = (PULONG)(Property + 1);
if (DeviceExtension->NumberOfKsAudioDevices <= *Index)
{
/* invalid index */
return SetIrpIoStatus(Irp, STATUS_INVALID_PARAMETER, 0);
}
Entry = GetListEntry(&DeviceExtension->KsAudioDeviceList, *Index);
ASSERT(Entry != NULL);
PropertyRequest.Set = KSPROPSETID_General;
PropertyRequest.Id = KSPROPERTY_GENERAL_COMPONENTID;
PropertyRequest.Flags = KSPROPERTY_TYPE_GET;
/* call the filter */
Status = KsSynchronousIoControlDevice(Entry->FileObject, KernelMode, IOCTL_KS_WRITE_STREAM, (PVOID)&PropertyRequest, sizeof(KSPROPERTY), (PVOID)&ComponentId, sizeof(KSCOMPONENTID), &BytesReturned);
if (!NT_SUCCESS(Status))
{
DPRINT1("KsSynchronousIoControlDevice failed with %x for KSPROPERTY_GENERAL_COMPONENTID\n", Status);
return SetIrpIoStatus(Irp, Status, 0);
}
RtlMoveMemory(Irp->UserBuffer, &ComponentId, sizeof(KSCOMPONENTID));
return SetIrpIoStatus(Irp, STATUS_SUCCESS, sizeof(KSCOMPONENTID));
}
else if (Property->Id == KSPROPERTY_SYSAUDIO_DEVICE_COUNT)
{
if (IoStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))
{
/* too small buffer */
return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(ULONG));
}
*((PULONG)Irp->UserBuffer) = DeviceExtension->NumberOfKsAudioDevices;
return SetIrpIoStatus(Irp, STATUS_SUCCESS, sizeof(ULONG));
}
else if (Property->Id == KSPROPERTY_SYSAUDIO_DEVICE_INSTANCE)
{
if (IoStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))
{
/* too small buffer */
return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(KSCOMPONENTID));
}
if (Property->Flags & KSPROPERTY_TYPE_SET)
{
Index = (PULONG)Irp->UserBuffer;
return SysAudioOpenVirtualDevice(Irp, *Index, DeviceExtension);
}
else if (Property->Flags & KSPROPERTY_TYPE_GET)
{
Index = (PULONG)Irp->UserBuffer;
/* get client context */
ClientInfo = (PSYSAUDIO_CLIENT)CreateItem->Context;
ASSERT(ClientInfo);
/* does the client already use a device */
if (!ClientInfo->NumDevices)
{
/* no device open */
return SetIrpIoStatus(Irp, STATUS_UNSUCCESSFUL, 0);
}
/* store last opened device number */
*Index = ClientInfo->Devices[ClientInfo->NumDevices-1];
/* found no device with that device index open */
return SetIrpIoStatus(Irp, STATUS_SUCCESS, sizeof(ULONG));
}
}
else if (Property->Id == KSPROPERTY_SYSAUDIO_INSTANCE_INFO)
{
if (IoStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(SYSAUDIO_INSTANCE_INFO))
{
/* too small buffer */
return SetIrpIoStatus(Irp, STATUS_BUFFER_TOO_SMALL, sizeof(SYSAUDIO_INSTANCE_INFO));
}
/* get input parameter */
InstanceInfo = (PSYSAUDIO_INSTANCE_INFO)Property;
if (Property->Flags & KSPROPERTY_TYPE_SET)
{
return SysAudioOpenVirtualDevice(Irp, InstanceInfo->DeviceNumber, DeviceExtension);
}
else if (Property->Flags & KSPROPERTY_TYPE_GET)
{
/* get client context */
ClientInfo = (PSYSAUDIO_CLIENT)CreateItem->Context;
ASSERT(ClientInfo);
/* does the client already use a device */
if (!ClientInfo->NumDevices)
{
/* no device open */
return SetIrpIoStatus(Irp, STATUS_UNSUCCESSFUL, 0);
}
for(Count = 0; Count < ClientInfo->NumDevices; Count++)
{
if (ClientInfo->Devices[Count] == InstanceInfo->DeviceNumber)
{
/* specified device is open */
return SetIrpIoStatus(Irp, STATUS_SUCCESS, 0);
}
}
/* found no device with that device index open */
return SetIrpIoStatus(Irp, STATUS_UNSUCCESSFUL, 0);
}
}
}
RtlStringFromGUID(&Property->Set, &GuidString);
DPRINT1("Unhandeled property Set |%S| Id %u Flags %x\n", GuidString.Buffer, Property->Id, Property->Flags);
DbgBreakPoint();
RtlFreeUnicodeString(&GuidString);
return Status;
}

239
reactos/drivers/wdm/audio/sysaudio/deviface.c Normal file
View file

@ -0,0 +1,239 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Kernel Streaming
* FILE: drivers/wdm/audio/sysaudio/deviface.c
* PURPOSE: System Audio graph builder
* PROGRAMMER: Johannes Anderwald
*/
#include <ntifs.h>
#include <ntddk.h>
#include <portcls.h>
#include <ks.h>
#include <ksmedia.h>
#include <math.h>
#define YDEBUG
#include <debug.h>
#include "sysaudio.h"
const GUID GUID_DEVICE_INTERFACE_ARRIVAL = {0xCB3A4004L, 0x46F0, 0x11D0, {0xB0, 0x8F, 0x00, 0x60, 0x97, 0x13, 0x05, 0x3F}};
const GUID GUID_DEVICE_INTERFACE_REMOVAL = {0xCB3A4005L, 0x46F0, 0x11D0, {0xB0, 0x8F, 0x00, 0x60, 0x97, 0x13, 0x05, 0x3F}};
const GUID KS_CATEGORY_AUDIO = {0x6994AD04L, 0x93EF, 0x11D0, {0xA3, 0xCC, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID DMOCATEGORY_ACOUSTIC_ECHO_CANCEL = {0xBF963D80L, 0xC559, 0x11D0, {0x8A, 0x2B, 0x00, 0xA0, 0xC9, 0x25, 0x5A, 0xC1}};
NTSTATUS
NTAPI
DeviceInterfaceChangeCallback(
IN PVOID NotificationStructure,
IN PVOID Context)
{
DEVICE_INTERFACE_CHANGE_NOTIFICATION * Event;
SYSAUDIODEVEXT *DeviceExtension = (SYSAUDIODEVEXT*)Context;
NTSTATUS Status = STATUS_SUCCESS;
Event = (DEVICE_INTERFACE_CHANGE_NOTIFICATION*)NotificationStructure;
if (IsEqualGUIDAligned(&Event->Event,
&GUID_DEVICE_INTERFACE_ARRIVAL))
{
/* a new device has arrived */
PFILE_OBJECT FileObject = NULL;
PKSAUDIO_DEVICE_ENTRY DeviceEntry;
HANDLE NodeHandle;
IO_STATUS_BLOCK IoStatusBlock;
OBJECT_ATTRIBUTES ObjectAttributes;
DeviceEntry = ExAllocatePool(NonPagedPool, sizeof(KSAUDIO_DEVICE_ENTRY));
if (!DeviceEntry)
{
DPRINT1("No Mem\n");
return STATUS_INSUFFICIENT_RESOURCES;
}
DeviceEntry->DeviceName.Length = 0;
DeviceEntry->DeviceName.MaximumLength = Event->SymbolicLinkName->Length + 5 * sizeof(WCHAR);
DeviceEntry->DeviceName.Buffer = ExAllocatePool(NonPagedPool, DeviceEntry->DeviceName.MaximumLength);
if (!DeviceEntry->DeviceName.Buffer)
{
DPRINT1("No Mem\n");
ExFreePool(DeviceEntry);
return STATUS_INSUFFICIENT_RESOURCES;
}
if (!NT_SUCCESS(RtlAppendUnicodeToString(&DeviceEntry->DeviceName, L"\\??\\")))
{
DPRINT1("No Mem\n");
ExFreePool(DeviceEntry->DeviceName.Buffer);
ExFreePool(DeviceEntry);
return STATUS_INSUFFICIENT_RESOURCES;
}
if (!NT_SUCCESS(RtlAppendUnicodeStringToString(&DeviceEntry->DeviceName, Event->SymbolicLinkName)))
{
DPRINT1("No Mem\n");
ExFreePool(DeviceEntry->DeviceName.Buffer);
ExFreePool(DeviceEntry);
return STATUS_INSUFFICIENT_RESOURCES;
}
DPRINT1("Sym %wZ\n", &DeviceEntry->DeviceName);
InitializeObjectAttributes(&ObjectAttributes, &DeviceEntry->DeviceName, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, NULL, NULL);
Status = ZwCreateFile(&NodeHandle,
GENERIC_READ | GENERIC_WRITE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
0,
FILE_OPEN,
FILE_SYNCHRONOUS_IO_NONALERT,
NULL,
0);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwCreateFile failed with %x\n", Status);
ExFreePool(DeviceEntry);
return Status;
}
Status = ObReferenceObjectByHandle(NodeHandle, GENERIC_READ | GENERIC_WRITE, IoFileObjectType, KernelMode, (PVOID*)&FileObject, NULL);
if (!NT_SUCCESS(Status))
{
ZwClose(NodeHandle);
ExFreePool(DeviceEntry);
DPRINT1("ObReferenceObjectByHandle failed with %x\n", Status);
return Status;
}
DeviceEntry->Handle = NodeHandle;
DeviceEntry->FileObject = FileObject;
InsertTailList(&DeviceExtension->KsAudioDeviceList, &DeviceEntry->Entry);
DeviceExtension->NumberOfKsAudioDevices++;
DPRINT1("Successfully opened audio device handle %p file object %p device object %p\n", NodeHandle, FileObject, FileObject->DeviceObject);
return Status;
}
else if (IsEqualGUIDAligned(&Event->Event,
&GUID_DEVICE_INTERFACE_REMOVAL))
{
DPRINT1("Remove interface to audio device!\n");
///FIXME
///
return STATUS_SUCCESS;
}
else
{
UNICODE_STRING EventName, InterfaceGuid;
RtlStringFromGUID(&Event->Event, &EventName);
RtlStringFromGUID(&Event->InterfaceClassGuid, &InterfaceGuid);
DPRINT1("Unknown event: Event %wZ GUID %wZ\n", &EventName, &InterfaceGuid);
return STATUS_SUCCESS;
}
}
NTSTATUS
SysAudioRegisterNotifications(
IN PDRIVER_OBJECT DriverObject,
SYSAUDIODEVEXT *DeviceExtension)
{
NTSTATUS Status;
Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
(PVOID)&KS_CATEGORY_AUDIO,
DriverObject,
DeviceInterfaceChangeCallback,
(PVOID)DeviceExtension,
(PVOID*)&DeviceExtension->KsAudioNotificationEntry);
if (!NT_SUCCESS(Status))
{
DPRINT1("IoRegisterPlugPlayNotification failed with %x\n", Status);
return Status;
}
Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
(PVOID)&DMOCATEGORY_ACOUSTIC_ECHO_CANCEL,
DriverObject,
DeviceInterfaceChangeCallback,
(PVOID)DeviceExtension,
(PVOID*)&DeviceExtension->EchoCancelNotificationEntry);
if (!NT_SUCCESS(Status))
{
/* ignore failure for now */
DPRINT1("IoRegisterPlugPlayNotification failed for DMOCATEGORY_ACOUSTIC_ECHO_CANCEL\n", Status);
}
return STATUS_SUCCESS;
}
NTSTATUS
SysAudioRegisterDeviceInterfaces(
IN PDEVICE_OBJECT DeviceObject)
{
NTSTATUS Status;
UNICODE_STRING SymbolicLink;
Status = IoRegisterDeviceInterface(DeviceObject, &KSCATEGORY_PREFERRED_MIDIOUT_DEVICE, NULL, &SymbolicLink);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLink, TRUE);
RtlFreeUnicodeString(&SymbolicLink);
}
else
{
DPRINT1("Failed to register KSCATEGORY_PREFERRED_MIDIOUT_DEVICE interface Status %x\n", Status);
return Status;
}
Status = IoRegisterDeviceInterface(DeviceObject, &KSCATEGORY_PREFERRED_WAVEIN_DEVICE, NULL, &SymbolicLink);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLink, TRUE);
RtlFreeUnicodeString(&SymbolicLink);
}
else
{
DPRINT1("Failed to register KSCATEGORY_PREFERRED_WAVEIN_DEVICE interface Status %x\n", Status);
return Status;
}
Status = IoRegisterDeviceInterface(DeviceObject, &KSCATEGORY_PREFERRED_WAVEOUT_DEVICE, NULL, &SymbolicLink);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLink, TRUE);
RtlFreeUnicodeString(&SymbolicLink);
}
else
{
DPRINT1("Failed to register KSCATEGORY_PREFERRED_WAVEOUT_DEVICE interface Status %x\n", Status);
}
Status = IoRegisterDeviceInterface(DeviceObject, &KSCATEGORY_SYSAUDIO, NULL, &SymbolicLink);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLink, TRUE);
RtlFreeUnicodeString(&SymbolicLink);
}
else
{
DPRINT1("Failed to register KSCATEGORY_SYSAUDIO interface Status %x\n", Status);
}
return Status;
}

244
reactos/drivers/wdm/audio/sysaudio/dispatcher.c Normal file
View file

@ -0,0 +1,244 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Kernel Streaming
* FILE: drivers/wdm/audio/sysaudio/dispatcher.c
* PURPOSE: System Audio graph builder
* PROGRAMMER: Johannes Anderwald
*/
#include <ntifs.h>
#include <ntddk.h>
#include <portcls.h>
#include <ks.h>
#include <ksmedia.h>
#include <math.h>
#define YDEBUG
#include <debug.h>
#include "sysaudio.h"
NTSTATUS
NTAPI
Dispatch_fnDeviceIoControl(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PIO_STACK_LOCATION IoStack;
DPRINT1("Dispatch_fnDeviceIoControl called DeviceObject %p Irp %p\n", DeviceObject);
IoStack = IoGetCurrentIrpStackLocation(Irp);
if (IoStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_KS_PROPERTY)
{
return SysAudioHandleProperty(DeviceObject, Irp);
}
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
Dispatch_fnRead(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
DPRINT1("Dispatch_fnRead called DeviceObject %p Irp %p\n", DeviceObject);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
Dispatch_fnWrite(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
DPRINT1("Dispatch_fnWrite called DeviceObject %p Irp %p\n", DeviceObject);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
Dispatch_fnFlush(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
DPRINT1("Dispatch_fnFlush called DeviceObject %p Irp %p\n", DeviceObject);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
Dispatch_fnClose(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
DPRINT1("Dispatch_fnClose called DeviceObject %p Irp %p\n", DeviceObject);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
Dispatch_fnQuerySecurity(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
DPRINT1("Dispatch_fnQuerySecurity called DeviceObject %p Irp %p\n", DeviceObject);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
Dispatch_fnSetSecurity(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
DPRINT1("Dispatch_fnSetSecurity called DeviceObject %p Irp %p\n", DeviceObject);
return STATUS_SUCCESS;
}
BOOLEAN
NTAPI
Dispatch_fnFastDeviceIoControl(
PFILE_OBJECT FileObject,
BOOLEAN Wait,
PVOID InputBuffer,
ULONG InputBufferLength,
PVOID OutputBuffer,
ULONG OutputBufferLength,
ULONG IoControlCode,
PIO_STATUS_BLOCK IoStatus,
PDEVICE_OBJECT DeviceObject)
{
DPRINT1("Dispatch_fnFastDeviceIoControl called DeviceObject %p Irp %p\n", DeviceObject);
return FALSE;
}
BOOLEAN
NTAPI
Dispatch_fnFastRead(
PFILE_OBJECT FileObject,
PLARGE_INTEGER FileOffset,
ULONG Length,
BOOLEAN Wait,
ULONG LockKey,
PVOID Buffer,
PIO_STATUS_BLOCK IoStatus,
PDEVICE_OBJECT DeviceObject)
{
DPRINT1("Dispatch_fnFastRead called DeviceObject %p Irp %p\n", DeviceObject);
return FALSE;
}
BOOLEAN
NTAPI
Dispatch_fnFastWrite(
PFILE_OBJECT FileObject,
PLARGE_INTEGER FileOffset,
ULONG Length,
BOOLEAN Wait,
ULONG LockKey,
PVOID Buffer,
PIO_STATUS_BLOCK IoStatus,
PDEVICE_OBJECT DeviceObject)
{
DPRINT1("Dispatch_fnFastWrite called DeviceObject %p Irp %p\n", DeviceObject);
return FALSE;
}
static KSDISPATCH_TABLE DispatchTable =
{
Dispatch_fnDeviceIoControl,
Dispatch_fnRead,
Dispatch_fnWrite,
Dispatch_fnFlush,
Dispatch_fnClose,
Dispatch_fnQuerySecurity,
Dispatch_fnSetSecurity,
Dispatch_fnFastDeviceIoControl,
Dispatch_fnFastRead,
Dispatch_fnFastWrite,
};
NTSTATUS
NTAPI
DispatchCreateSysAudio(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
NTSTATUS Status;
KSOBJECT_HEADER ObjectHeader;
PSYSAUDIO_CLIENT Client;
PKSOBJECT_CREATE_ITEM CreateItem;
DPRINT1("DispatchCreateSysAudio entered\n");
DbgBreakPoint();
/* allocate create item */
CreateItem = ExAllocatePool(NonPagedPool, sizeof(KSOBJECT_CREATE_ITEM));
if (!CreateItem)
return STATUS_INSUFFICIENT_RESOURCES;
Client = ExAllocatePool(NonPagedPool, sizeof(SYSAUDIO_CLIENT));
if (!Client)
{
ExFreePool(CreateItem);
return STATUS_INSUFFICIENT_RESOURCES;
}
/* initialize client struct */
RtlZeroMemory(Client, sizeof(SYSAUDIO_CLIENT));
/* zero create struct */
RtlZeroMemory(CreateItem, sizeof(KSOBJECT_CREATE_ITEM));
/* store create context */
CreateItem->Context = (PVOID)Client;
/* allocate object header */
Status = KsAllocateObjectHeader(&ObjectHeader, 1, CreateItem, Irp, &DispatchTable);
DPRINT1("KsAllocateObjectHeader result %x\n", Status);
return Status;
}
NTSTATUS
SysAudioAllocateDeviceHeader(
IN SYSAUDIODEVEXT *DeviceExtension)
{
NTSTATUS Status;
PKSOBJECT_CREATE_ITEM CreateItem;
/* allocate create item */
CreateItem = ExAllocatePool(NonPagedPool, sizeof(KSOBJECT_CREATE_ITEM));
if (!CreateItem)
return STATUS_INSUFFICIENT_RESOURCES;
/* initialize create item struct */
RtlZeroMemory(CreateItem, sizeof(KSOBJECT_CREATE_ITEM));
CreateItem->Create = DispatchCreateSysAudio;
RtlInitUnicodeString(&CreateItem->ObjectClass, L"SysAudio");
Status = KsAllocateDeviceHeader(&DeviceExtension->KsDeviceHeader,
1,
CreateItem);
return Status;
}

279
reactos/drivers/wdm/audio/sysaudio/main.c
View file

@ -4,7 +4,7 @@
* FILE: drivers/wdm/audio/sysaudio/main.c
* PURPOSE: System Audio graph builder
* PROGRAMMER: Andrew Greenwood
*
* Johannes Anderwald
* HISTORY:
* 8 Jul 07 Started basic implementation
*/
@ -13,20 +13,20 @@
#include <ntddk.h>
#include <portcls.h>
#include <ks.h>
#include <ksmedia.h>
#include <math.h>
#define YDEBUG
#include <debug.h>
//#include <dxsdk/mediaobj.h>
#include "sysaudio.h"
const GUID DMOCATEGORY_ACOUSTIC_ECHO_CANCEL = {0xBF963D80L, 0xC559, 0x11D0, {0x8A, 0x2B, 0x00, 0xA0, 0xC9, 0x25, 0x5A, 0xC1}};
const GUID KSCATEGORY_SYSAUDIO = {0xA7C7A5B1L, 0x5AF3, 0x11D1, {0x9C, 0xED, 0x00, 0xA0, 0x24, 0xBF, 0x04, 0x07}};
const GUID KSCATEGORY_AUDIO_DEVICE = {0xFBF6F530L, 0x07B9, 0x11D2, {0xA7, 0x1E, 0x00, 0x00, 0xF8, 0x00, 0x47, 0x88}};
const GUID KSCATEGORY_PREFERRED_WAVEOUT_DEVICE = {0xD6C5066EL, 0x72C1, 0x11D2, {0x97, 0x55, 0x00, 0x00, 0xF8, 0x00, 0x47, 0x88}};
const GUID KSCATEGORY_PREFERRED_WAVEIN_DEVICE = {0xD6C50671L, 0x72C1, 0x11D2, {0x97, 0x55, 0x00, 0x00, 0xF8, 0x00, 0x47, 0x88}};
const GUID KSCATEGORY_PREFERRED_MIDIOUT_DEVICE = {0xD6C50674L, 0x72C1, 0x11D2, {0x97, 0x55, 0x00, 0x00, 0xF8, 0x00, 0x47, 0x88}};
const GUID KS_CATEGORY_AUDIO = {0x6994AD04L, 0x93EF, 0x11D0, {0xA3, 0xCC, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID GUID_DEVICE_INTERFACE_ARRIVAL = {0xCB3A4004L, 0x46F0, 0x11D0, {0xB0, 0x8F, 0x00, 0x60, 0x97, 0x13, 0x05, 0x3F}};
const GUID GUID_DEVICE_INTERFACE_REMOVAL = {0xCB3A4005L, 0x46F0, 0x11D0, {0xB0, 0x8F, 0x00, 0x60, 0x97, 0x13, 0x05, 0x3F}};
VOID
@ -49,13 +49,12 @@ SysAudio_Pnp(
IrpStack = IoGetCurrentIrpStackLocation(Irp);
DPRINT1("SysAudio_Pnp called for func %x\n", IrpStack->MinorFunction);
DbgBreakPoint();
DeviceExtension = (SYSAUDIODEVEXT*)DeviceObject->DeviceExtension;
if (IrpStack->MinorFunction == IRP_MN_START_DEVICE)
{
{
DPRINT1("SysAudio_Pnp called for func IRP_MN_START_DEVICE\n");
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
@ -81,132 +80,6 @@ SysAudio_Pnp(
return KsDefaultDispatchPnp(DeviceObject, Irp);
}
NTSTATUS
NTAPI
DeviceInterfaceChangeCallback(
IN PVOID NotificationStructure,
IN PVOID Context)
{
DEVICE_INTERFACE_CHANGE_NOTIFICATION * Event;
SYSAUDIODEVEXT *DeviceExtension = (SYSAUDIODEVEXT*)Context;
NTSTATUS Status = STATUS_SUCCESS;
Event = (DEVICE_INTERFACE_CHANGE_NOTIFICATION*)NotificationStructure;
if (IsEqualGUIDAligned(&Event->Event,
&GUID_DEVICE_INTERFACE_ARRIVAL))
{
/* a new device has arrived */
PFILE_OBJECT FileObject = NULL;
PKSAUDIO_DEVICE_ENTRY DeviceEntry;
HANDLE NodeHandle;
IO_STATUS_BLOCK IoStatusBlock;
OBJECT_ATTRIBUTES ObjectAttributes;
DeviceEntry = ExAllocatePool(NonPagedPool, sizeof(KSAUDIO_DEVICE_ENTRY));
if (!DeviceEntry)
return STATUS_INSUFFICIENT_RESOURCES;
DeviceEntry->DeviceName.Length = 0;
DeviceEntry->DeviceName.MaximumLength = Event->SymbolicLinkName->Length + 5 * sizeof(WCHAR);
DeviceEntry->DeviceName.Buffer = ExAllocatePool(NonPagedPool, DeviceEntry->DeviceName.MaximumLength);
if (!DeviceEntry->DeviceName.Buffer)
{
ExFreePool(DeviceEntry);
return STATUS_INSUFFICIENT_RESOURCES;
}
if (!NT_SUCCESS(RtlAppendUnicodeToString(&DeviceEntry->DeviceName, L"\\??\\")))
{
ExFreePool(DeviceEntry->DeviceName.Buffer);
ExFreePool(DeviceEntry);
return STATUS_INSUFFICIENT_RESOURCES;
}
if (!NT_SUCCESS(RtlAppendUnicodeStringToString(&DeviceEntry->DeviceName, Event->SymbolicLinkName)))
{
ExFreePool(DeviceEntry->DeviceName.Buffer);
ExFreePool(DeviceEntry);
return STATUS_INSUFFICIENT_RESOURCES;
}
DPRINT1("Sym %wZ\n", &DeviceEntry->DeviceName);
InitializeObjectAttributes(&ObjectAttributes, &DeviceEntry->DeviceName, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, NULL, NULL);
Status = ZwCreateFile(&NodeHandle,
GENERIC_READ | GENERIC_WRITE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
0,
FILE_OPEN,
FILE_SYNCHRONOUS_IO_NONALERT,
NULL,
0);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwCreateFile failed with %x\n", Status);
ExFreePool(DeviceEntry);
return Status;
}
Status = ObReferenceObjectByHandle(NodeHandle, GENERIC_READ | GENERIC_WRITE, IoFileObjectType, KernelMode, (PVOID*)&FileObject, NULL);
if (!NT_SUCCESS(Status))
{
ZwClose(NodeHandle);
ExFreePool(DeviceEntry);
DPRINT1("ObReferenceObjectByHandle failed with %x\n", Status);
return Status;
}
DeviceEntry->Handle = NodeHandle;
DeviceEntry->FileObject = FileObject;
InsertTailList(&DeviceExtension->KsAudioDeviceList, &DeviceEntry->Entry);
DeviceExtension->NumberOfKsAudioDevices++;
DPRINT1("Successfully opened audio device handle %p file object %p device object %p\n", NodeHandle, FileObject, FileObject->DeviceObject);
return Status;
}
else if (IsEqualGUIDAligned(&Event->Event,
&GUID_DEVICE_INTERFACE_REMOVAL))
{
DPRINT1("Remove interface to audio device!\n");
///FIXME
///
return STATUS_SUCCESS;
}
else
{
UNICODE_STRING EventName, InterfaceGuid;
RtlStringFromGUID(&Event->Event, &EventName);
RtlStringFromGUID(&Event->InterfaceClassGuid, &InterfaceGuid);
DPRINT1("Unknown event: Event %wZ GUID %wZ\n", &EventName, &InterfaceGuid);
return STATUS_SUCCESS;
}
}
NTSTATUS
NTAPI
DispatchCreate(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
DPRINT1("DispatchCreate\n");
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
SysAudio_InstallDevice(
@ -217,9 +90,8 @@ SysAudio_InstallDevice(
UNICODE_STRING SymlinkName = RTL_CONSTANT_STRING(L"\\DosDevices\\sysaudio");
PDEVICE_OBJECT DeviceObject;
//PDEVICE_OBJECT NextDeviceObject;
KSOBJECT_CREATE_ITEM CreateItem;
SYSAUDIODEVEXT *DeviceExtension;
UNICODE_STRING SymbolicLink;
DPRINT1("SysAudio_InstallDevice called\n");
@ -239,16 +111,22 @@ SysAudio_InstallDevice(
return Status;
}
/* create the symbolic link */
Status = IoCreateSymbolicLink(&SymlinkName, &DeviceName);
/* register device interfaces */
Status = SysAudioRegisterDeviceInterfaces(DeviceObject);
if (!NT_SUCCESS(Status))
{
IoDeleteDevice(DeviceObject);
DPRINT("Failed to create \\DosDevices\\sysaudio symlink!\n");
return Status;
/* failed to register
* create a hack interface
*/
Status = IoCreateSymbolicLink(&SymlinkName, &DeviceName);
if (!NT_SUCCESS(Status))
{
IoDeleteDevice(DeviceObject);
DPRINT("Failed to create sysaudio symlink!\n");
return Status;
}
}
DeviceExtension = (SYSAUDIODEVEXT*)DeviceObject->DeviceExtension;
/* initialize device extension */
RtlZeroMemory(DeviceExtension, sizeof(SYSAUDIODEVEXT));
@ -257,109 +135,27 @@ SysAudio_InstallDevice(
//DeviceExtension->PhysicalDeviceObject = PhysicalDeviceObject;
InitializeListHead(&DeviceExtension->KsAudioDeviceList);
/* initialize create item struct */
RtlZeroMemory(&CreateItem, sizeof(KSOBJECT_CREATE_ITEM));
CreateItem.Create = DispatchCreate;
Status = KsAllocateDeviceHeader(&DeviceExtension->KsDeviceHeader,
1,
&CreateItem);
Status = SysAudioAllocateDeviceHeader(DeviceExtension);
if (!NT_SUCCESS(Status))
{
DPRINT1("KsAllocateDeviceHeader failed with %x\n", Status);
goto cleanup;
}
#if 0
//NextDeviceObject = IoAttachDeviceToDeviceStack(DeviceObject, PhysicalDeviceObject);
/// FIXME
/// KsSetDevicePnpAndBaseObject(DeviceExtension->KsDeviceHeader, NextDeviceObject, DeviceObject);
///
/// DeviceExtension->NextDeviceObject = NextDeviceObject;
#endif
Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
(PVOID)&KS_CATEGORY_AUDIO,
DriverObject,
DeviceInterfaceChangeCallback,
(PVOID)DeviceExtension,
(PVOID*)&DeviceExtension->KsAudioNotificationEntry);
Status = SysAudioRegisterNotifications(DriverObject,
DeviceExtension);
if (!NT_SUCCESS(Status))
{
DPRINT1("IoRegisterPlugPlayNotification failed with %x\n", Status);
DPRINT1("Failed to register device notifications\n");
goto cleanup;
}
#if 0
Status = IoRegisterPlugPlayNotification(EventCategoryDeviceInterfaceChange,
PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
(PVOID)&DMOCATEGORY_ACOUSTIC_ECHO_CANCEL,
DriverObject,
DeviceInterfaceChangeCallback,
(PVOID)DeviceExtension,
(PVOID*)&DeviceExtension->EchoCancelNotificationEntry);
if (!NT_SUCCESS(Status))
{
DPRINT1("IoRegisterPlugPlayNotification failed with %x\n", Status);
goto cleanup;
}
#endif
Status = IoRegisterDeviceInterface(DeviceObject, &KSCATEGORY_PREFERRED_MIDIOUT_DEVICE, NULL, &SymbolicLink);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLink, TRUE);
RtlFreeUnicodeString(&SymbolicLink);
}
else
{
DPRINT1("Failed to register KSCATEGORY_PREFERRED_MIDIOUT_DEVICE interface Status %x\n", Status);
}
Status = IoRegisterDeviceInterface(DeviceObject, &KSCATEGORY_PREFERRED_WAVEIN_DEVICE, NULL, &SymbolicLink);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLink, TRUE);
RtlFreeUnicodeString(&SymbolicLink);
}
else
{
DPRINT1("Failed to register KSCATEGORY_PREFERRED_WAVEIN_DEVICE interface Status %x\n", Status);
}
Status = IoRegisterDeviceInterface(DeviceObject, &KSCATEGORY_PREFERRED_WAVEOUT_DEVICE, NULL, &SymbolicLink);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLink, TRUE);
RtlFreeUnicodeString(&SymbolicLink);
}
else
{
DPRINT1("Failed to register KSCATEGORY_PREFERRED_WAVEOUT_DEVICE interface Status %x\n", Status);
}
Status = IoRegisterDeviceInterface(DeviceObject, &KSCATEGORY_SYSAUDIO, NULL, &SymbolicLink);
if (NT_SUCCESS(Status))
{
IoSetDeviceInterfaceState(&SymbolicLink, TRUE);
RtlFreeUnicodeString(&SymbolicLink);
}
else
{
DPRINT1("Failed to register KSCATEGORY_SYSAUDIO interface Status %x\n", Status);
}
/* set io flags */
DeviceObject->Flags |= DO_DIRECT_IO | DO_POWER_PAGABLE;
/* clear initializing flag */
DeviceObject->Flags &= ~ DO_DEVICE_INITIALIZING;
DPRINT("Device SysAudio_AddDevice result %x\n", Status);
DPRINT("Device SysAudio_InstallDevice result %x\n", Status);
return STATUS_SUCCESS;
cleanup:
@ -375,23 +171,6 @@ cleanup:
return Status;
}
NTSTATUS
NTAPI
SysAudio_Stub(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
DPRINT1("SysAudio_Stub called\n");
/* TODO */
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_SUCCESS;
}
NTSTATUS NTAPI
DriverEntry(
IN PDRIVER_OBJECT DriverObject,
@ -399,20 +178,10 @@ DriverEntry(
{
DPRINT1("System audio graph builder (sysaudio) started\n");
DPRINT1("Setting KS function handlers\n");
#if KS_IMPLEMENTED
KsSetMajorFunctionHandler(DriverObject, IRP_MJ_CREATE);
KsSetMajorFunctionHandler(DriverObject, IRP_MJ_CLOSE);
KsSetMajorFunctionHandler(DriverObject, IRP_MJ_WRITE);
KsSetMajorFunctionHandler(DriverObject, IRP_MJ_DEVICE_CONTROL);
#else
DriverObject->MajorFunction[IRP_MJ_CREATE] = SysAudio_Stub;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = SysAudio_Stub;
DriverObject->MajorFunction[IRP_MJ_WRITE] = SysAudio_Stub;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = SysAudio_Stub;
#endif
DriverObject->MajorFunction[IRP_MJ_POWER] = KsDefaultDispatchPower;
DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = KsDefaultForwardIrp;

30
reactos/drivers/wdm/audio/sysaudio/sysaudio.h
View file

@ -1,6 +1,14 @@
#ifndef SYSAUDIO_H__
#define SYSAUDIO_H__
typedef struct
{
ULONG NumDevices;
PULONG Devices;
}SYSAUDIO_CLIENT, *PSYSAUDIO_CLIENT;
typedef struct
{
LIST_ENTRY Entry;
@ -8,6 +16,7 @@ typedef struct
PFILE_OBJECT FileObject;
UNICODE_STRING DeviceName;
ULONG NumberOfClients;
}KSAUDIO_DEVICE_ENTRY, *PKSAUDIO_DEVICE_ENTRY;
@ -17,10 +26,29 @@ typedef struct
PDEVICE_OBJECT NextDeviceObject;
KSDEVICE_HEADER KsDeviceHeader;
ULONG NumberOfKsAudioDevices;
LIST_ENTRY KsAudioDeviceList;
PVOID KsAudioNotificationEntry;
PVOID EchoCancelNotificationEntry;
KMUTEX Mutex;
}SYSAUDIODEVEXT;
}SYSAUDIODEVEXT, *PSYSAUDIODEVEXT;
NTSTATUS
SysAudioAllocateDeviceHeader(
IN SYSAUDIODEVEXT *DeviceExtension);
NTSTATUS
SysAudioRegisterDeviceInterfaces(
IN PDEVICE_OBJECT DeviceObject);
NTSTATUS
SysAudioRegisterNotifications(
IN PDRIVER_OBJECT DriverObject,
SYSAUDIODEVEXT *DeviceExtension);
NTSTATUS
SysAudioHandleProperty(
PDEVICE_OBJECT DeviceObject,
PIRP Irp);
#endif

4
reactos/drivers/wdm/audio/sysaudio/sysaudio.rbuild
View file

@ -4,7 +4,11 @@
<include base="sysaudio">.</include>
<library>ntoskrnl</library>
<library>ks</library>
<library>libcntpr</library>
<define name="_COMDDK_" />
<file>control.c</file>
<file>deviface.c</file>
<file>dispatcher.c</file>
<file>main.c</file>
<file>sysaudio.rc</file>
</module>