ReactOS  0.4.15-dev-4914-g2220e56
dispatch.c File Reference
#include "videoprt.h"
#include <ndk/inbvfuncs.h>
#include <ndk/obfuncs.h>
#include <ndk/psfuncs.h>
#include <debug.h>
Include dependency graph for dispatch.c:

Go to the source code of this file.

Macros

#define NDEBUG
 

Functions

static VOID VideoPortWin32kCallout (_In_ PVIDEO_WIN32K_CALLBACKS_PARAMS CallbackParams)
 
static BOOLEAN NTAPI IntVideoPortResetDisplayParametersEx (_In_ ULONG Columns, _In_ ULONG Rows, _In_ BOOLEAN CalledByInbv)
 
static BOOLEAN NTAPI IntVideoPortResetDisplayParameters (ULONG Columns, ULONG Rows)
 
static VOID NTAPI InbvMonitorThread (_In_ PVOID Context)
 
static NTSTATUS IntVideoPortInbvInitialize (VOID)
 
static NTSTATUS IntVideoPortInbvCleanup (IN PDEVICE_OBJECT DeviceObject)
 
NTSTATUS NTAPI IntVideoPortAddDevice (IN PDRIVER_OBJECT DriverObject, IN PDEVICE_OBJECT PhysicalDeviceObject)
 
NTSTATUS NTAPI IntVideoPortDispatchOpen (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortDispatchClose (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
PSTR IoctlName (ULONG Ioctl)
 
static NTSTATUS VideoPortUseDeviceInSession (_Inout_ PDEVICE_OBJECT DeviceObject, _Inout_ PVIDEO_DEVICE_SESSION_STATUS SessionState, _In_ ULONG BufferLength, _Out_ PULONG_PTR Information)
 
static NTSTATUS VideoPortInitWin32kCallbacks (_In_ PDEVICE_OBJECT DeviceObject, _Inout_ PVIDEO_WIN32K_CALLBACKS Win32kCallbacks, _In_ ULONG BufferLength, _Out_ PULONG_PTR Information)
 
static NTSTATUS VideoPortForwardDeviceControl (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortDispatchDeviceControl (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortPnPStartDevice (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortForwardIrpAndWaitCompletionRoutine (PDEVICE_OBJECT Fdo, PIRP Irp, PVOID Context)
 
NTSTATUS NTAPI IntVideoPortQueryBusRelations (PDEVICE_OBJECT DeviceObject, PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortForwardIrpAndWait (PDEVICE_OBJECT DeviceObject, PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortDispatchFdoPnp (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortDispatchPnp (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortDispatchCleanup (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortDispatchPower (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
NTSTATUS NTAPI IntVideoPortDispatchSystemControl (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
VOID NTAPI IntVideoPortUnload (PDRIVER_OBJECT DriverObject)
 

Variables

static PVIDEO_WIN32K_CALLOUT Win32kCallout = NULL
 
static HANDLE InbvThreadHandle = NULL
 
static BOOLEAN InbvMonitoring = FALSE
 

Macro Definition Documentation

◆ NDEBUG

#define NDEBUG

Definition at line 28 of file dispatch.c.

Function Documentation

◆ InbvMonitorThread()

static VOID NTAPI InbvMonitorThread ( _In_ PVOID  Context)
static

Definition at line 208 of file dispatch.c.

210 {
211  VIDEO_WIN32K_CALLBACKS_PARAMS CallbackParams;
212  LARGE_INTEGER Delay;
213  USHORT i;
214 
216 
217  while (TRUE)
218  {
219  /*
220  * During one second, check the INBV status each 100 milliseconds,
221  * then revert to 1 second delay.
222  */
223  i = 10;
224  Delay.QuadPart = (LONGLONG)-100*1000*10; // 100 millisecond delay
225  while (!InbvMonitoring)
226  {
228 
229  if ((i > 0) && (--i == 0))
230  Delay.QuadPart = (LONGLONG)-1*1000*1000*10; // 1 second delay
231  }
232 
233  /*
234  * Loop while the display is owned by INBV. We cannot do anything else
235  * than polling since INBV does not offer a proper notification system.
236  *
237  * During one second, check the INBV status each 100 milliseconds,
238  * then revert to 1 second delay.
239  */
240  i = 10;
241  Delay.QuadPart = (LONGLONG)-100*1000*10; // 100 millisecond delay
242  while (InbvCheckDisplayOwnership())
243  {
245 
246  if ((i > 0) && (--i == 0))
247  Delay.QuadPart = (LONGLONG)-1*1000*1000*10; // 1 second delay
248  }
249 
250  /* Reset the monitoring */
252 
253  /*
254  * Somebody released INBV display ownership, usually by invoking
255  * InbvNotifyDisplayOwnershipLost(). However the caller of this
256  * function certainly specified a different callback than ours.
257  * As we are going to be the only owner of the active display,
258  * we need to re-register our own display reset callback.
259  */
261 
262  /* Tell Win32k to reset the display */
263  CallbackParams.CalloutType = VideoFindAdapterCallout;
264  // CallbackParams.PhysDisp = NULL;
265  CallbackParams.Param = (ULONG_PTR)TRUE; // TRUE: Re-enable display; FALSE: Disable display.
266  VideoPortWin32kCallout(&CallbackParams);
267  }
268 
269  // FIXME: See IntVideoPortInbvCleanup().
270  // PsTerminateSystemThread(STATUS_SUCCESS);
271 }
static BOOLEAN InbvMonitoring
Definition: dispatch.c:35
VIDEO_WIN32K_CALLBACKS_PARAMS_TYPE CalloutType
Definition: ntddvdeo.h:250
#define TRUE
Definition: types.h:120
#define LOW_REALTIME_PRIORITY
VOID NTAPI InbvNotifyDisplayOwnershipLost(_In_ INBV_RESET_DISPLAY_PARAMETERS Callback)
Definition: inbv.c:403
static BOOLEAN NTAPI IntVideoPortResetDisplayParameters(ULONG Columns, ULONG Rows)
Definition: dispatch.c:168
#define FALSE
Definition: types.h:117
NTSTATUS NTAPI KeDelayExecutionThread(IN KPROCESSOR_MODE WaitMode, IN BOOLEAN Alertable, IN PLARGE_INTEGER Interval OPTIONAL)
Definition: wait.c:283
int64_t LONGLONG
Definition: typedefs.h:68
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
KPRIORITY NTAPI KeSetPriorityThread(IN PKTHREAD Thread, IN KPRIORITY Priority)
Definition: thrdobj.c:1327
unsigned short USHORT
Definition: pedump.c:61
static VOID VideoPortWin32kCallout(_In_ PVIDEO_WIN32K_CALLBACKS_PARAMS CallbackParams)
Definition: dispatch.c:40
#define ULONG_PTR
Definition: config.h:101
BOOLEAN NTAPI InbvCheckDisplayOwnership(VOID)
Definition: inbv.c:315
#define KeGetCurrentThread
Definition: hal.h:55
LONGLONG QuadPart
Definition: typedefs.h:114

Referenced by IntVideoPortInbvInitialize().

◆ IntVideoPortAddDevice()

NTSTATUS NTAPI IntVideoPortAddDevice ( IN PDRIVER_OBJECT  DriverObject,
IN PDEVICE_OBJECT  PhysicalDeviceObject 
)

Definition at line 334 of file dispatch.c.

337 {
341 
342  /* Get the initialization data we saved in VideoPortInitialize. */
344 
345  /* Create adapter device object. */
349  DriverExtension->InitializationData.StartingDeviceNumber,
350  0,
351  &DeviceObject);
352  if (!NT_SUCCESS(Status))
353  {
354  ERR_(VIDEOPRT, "IntVideoPortCreateAdapterDeviceObject() failed with status 0x%lx\n", Status);
355  }
356  return Status;
357 }
#define ERR_(ch,...)
Definition: debug.h:156
LONG NTSTATUS
Definition: precomp.h:26
PDEVICE_OBJECT PhysicalDeviceObject
Definition: btrfs_drv.h:1149
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
NTSTATUS NTAPI IntVideoPortCreateAdapterDeviceObject(_In_ PDRIVER_OBJECT DriverObject, _In_ PVIDEO_PORT_DRIVER_EXTENSION DriverExtension, _In_opt_ PDEVICE_OBJECT PhysicalDeviceObject, _In_ USHORT AdapterNumber, _In_ USHORT DisplayNumber, _Out_opt_ PDEVICE_OBJECT *DeviceObject)
Definition: videoprt.c:159
_Must_inspect_result_ _In_ PDRIVER_OBJECT DriverObject
Definition: wdfdriver.h:213
Status
Definition: gdiplustypes.h:24
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
PVOID NTAPI IoGetDriverObjectExtension(IN PDRIVER_OBJECT DriverObject, IN PVOID ClientIdentificationAddress)
Definition: driver.c:1875
PPCI_DRIVER_EXTENSION DriverExtension
Definition: pci.c:31

Referenced by VideoPortInitialize().

◆ IntVideoPortDispatchCleanup()

NTSTATUS NTAPI IntVideoPortDispatchCleanup ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 1123 of file dispatch.c.

1126 {
1127  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
1128 
1129  DeviceExtension = DeviceObject->DeviceExtension;
1130  RtlFreeUnicodeString(&DeviceExtension->RegistryPath);
1131 
1132  Irp->IoStatus.Status = STATUS_SUCCESS;
1133  Irp->IoStatus.Information = 0;
1135 
1136  return STATUS_SUCCESS;
1137 }
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ PIRP Irp
Definition: csq.h:116
#define IoCompleteRequest
Definition: irp.c:1240
NTSYSAPI VOID NTAPI RtlFreeUnicodeString(PUNICODE_STRING UnicodeString)
#define IO_NO_INCREMENT
Definition: iotypes.h:598
UNICODE_STRING RegistryPath
Definition: videoprt.h:90
#define STATUS_SUCCESS
Definition: shellext.h:65

◆ IntVideoPortDispatchClose()

NTSTATUS NTAPI IntVideoPortDispatchClose ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 436 of file dispatch.c.

439 {
440  TRACE_(VIDEOPRT, "IntVideoPortDispatchClose\n");
441 
443 
444  Irp->IoStatus.Status = STATUS_SUCCESS;
446  return STATUS_SUCCESS;
447 }
static NTSTATUS IntVideoPortInbvCleanup(IN PDEVICE_OBJECT DeviceObject)
Definition: dispatch.c:300
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ PIRP Irp
Definition: csq.h:116
#define IoCompleteRequest
Definition: irp.c:1240
#define TRACE_(x)
Definition: compat.h:76
#define IO_NO_INCREMENT
Definition: iotypes.h:598
#define STATUS_SUCCESS
Definition: shellext.h:65

Referenced by VideoPortInitialize().

◆ IntVideoPortDispatchDeviceControl()

NTSTATUS NTAPI IntVideoPortDispatchDeviceControl ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 723 of file dispatch.c.

726 {
727  PIO_STACK_LOCATION IrpStack;
730 
731  TRACE_(VIDEOPRT, "IntVideoPortDispatchDeviceControl\n");
732 
733  IrpStack = IoGetCurrentIrpStackLocation(Irp);
734 
735  switch (IrpStack->MajorFunction)
736  {
738  /* This is the main part of this function and is handled below */
739  break;
740 
741  case IRP_MJ_SHUTDOWN:
742  {
743  /* Dereference CSRSS */
744  PKPROCESS OldCsrProcess;
745  OldCsrProcess = InterlockedExchangePointer((PVOID*)&CsrProcess, NULL);
746  if (OldCsrProcess)
747  ObDereferenceObject(OldCsrProcess);
748 
749  Irp->IoStatus.Status = STATUS_SUCCESS;
751  return STATUS_SUCCESS;
752  }
753 
754  default:
755  ERR_(VIDEOPRT, "- Unknown MajorFunction 0x%x\n", IrpStack->MajorFunction);
756  Irp->IoStatus.Status = STATUS_SUCCESS;
758  return STATUS_SUCCESS;
759  }
760 
761  IoControlCode = IrpStack->Parameters.DeviceIoControl.IoControlCode;
762 
763  INFO_(VIDEOPRT, "- IoControlCode: 0x%x: %s\n", IoControlCode, IoctlName(IoControlCode));
764 
765  switch (IoControlCode)
766  {
770  WARN_(VIDEOPRT, "- IOCTL_VIDEO_*_VDM are UNIMPLEMENTED!\n");
772  break;
773 
776  WARN_(VIDEOPRT, "- IOCTL_VIDEO_GET/SET_OUTPUT_DEVICE_POWER_STATE are UNIMPLEMENTED!\n");
778  break;
779 
782  WARN_(VIDEOPRT, "- IOCTL_VIDEO_GET/SET_POWER_MANAGEMENT are UNIMPLEMENTED!\n");
784  break;
785 
789  WARN_(VIDEOPRT, "- IOCTL_VIDEO_*_BRIGHTNESS are UNIMPLEMENTED!\n");
791  break;
792 
794  WARN_(VIDEOPRT, "- IOCTL_VIDEO_ENUM_MONITOR_PDO is UNIMPLEMENTED!\n");
796  break;
797 
799  INFO_(VIDEOPRT, "- IOCTL_VIDEO_INIT_WIN32K_CALLBACKS\n");
801  Irp->AssociatedIrp.SystemBuffer,
802  IrpStack->Parameters.DeviceIoControl.InputBufferLength,
803  &Irp->IoStatus.Information);
804  break;
805 
807  WARN_(VIDEOPRT, "- IOCTL_VIDEO_IS_VGA_DEVICE is UNIMPLEMENTED!\n");
809  break;
810 
812  INFO_(VIDEOPRT, "- IOCTL_VIDEO_USE_DEVICE_IN_SESSION\n");
814  Irp->AssociatedIrp.SystemBuffer,
815  IrpStack->Parameters.DeviceIoControl.InputBufferLength,
816  &Irp->IoStatus.Information);
817  break;
818 
820  INFO_(VIDEOPRT, "- IOCTL_VIDEO_PREPARE_FOR_EARECOVERY\n");
821  /*
822  * The Win32k Watchdog Timer detected that a thread spent more time
823  * in a display driver than the allotted time its threshold specified,
824  * and thus is going to attempt to recover by switching to VGA mode.
825  * If this attempt fails, the watchdog generates bugcheck 0xEA
826  * "THREAD_STUCK_IN_DEVICE_DRIVER".
827  *
828  * Prepare the recovery by resetting the display adapters to
829  * standard VGA 80x25 text mode.
830  */
833  break;
834 
835  default:
836  /* Forward to the Miniport Driver */
838  break;
839  }
840 
841  INFO_(VIDEOPRT, "- Returned status: 0x%x\n", Status);
842 
843  Irp->IoStatus.Status = Status;
845  return Status;
846 }
#define IOCTL_VIDEO_IS_VGA_DEVICE
Definition: ntddvdeo.h:68
static NTSTATUS VideoPortUseDeviceInSession(_Inout_ PDEVICE_OBJECT DeviceObject, _Inout_ PVIDEO_DEVICE_SESSION_STATUS SessionState, _In_ ULONG BufferLength, _Out_ PULONG_PTR Information)
Definition: dispatch.c:569
#define INFO_(ch,...)
Definition: debug.h:159
#define IOCTL_VIDEO_REGISTER_VDM
Definition: ntddvdeo.h:47
#define IRP_MJ_SHUTDOWN
#define ERR_(ch,...)
Definition: debug.h:156
LONG NTSTATUS
Definition: precomp.h:26
#define IOCTL_VIDEO_ENABLE_VDM
Definition: ntddvdeo.h:41
#define IOCTL_VIDEO_GET_POWER_MANAGEMENT
Definition: ntddvdeo.h:98
#define IOCTL_VIDEO_GET_OUTPUT_DEVICE_POWER_STATE
Definition: ntddvdeo.h:53
PKPROCESS CsrProcess
Definition: videoprt.c:39
PSTR IoctlName(ULONG Ioctl)
Definition: dispatch.c:450
#define IOCTL_VIDEO_ENUM_MONITOR_PDO
Definition: ntddvdeo.h:59
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
return STATUS_NOT_IMPLEMENTED
#define FALSE
Definition: types.h:117
_In_ PIRP Irp
Definition: csq.h:116
#define IOCTL_VIDEO_INIT_WIN32K_CALLBACKS
Definition: ntddvdeo.h:62
static BOOLEAN NTAPI IntVideoPortResetDisplayParametersEx(_In_ ULONG Columns, _In_ ULONG Rows, _In_ BOOLEAN CalledByInbv)
Definition: dispatch.c:72
#define IoCompleteRequest
Definition: irp.c:1240
static NTSTATUS VideoPortInitWin32kCallbacks(_In_ PDEVICE_OBJECT DeviceObject, _Inout_ PVIDEO_WIN32K_CALLBACKS Win32kCallbacks, _In_ ULONG BufferLength, _Out_ PULONG_PTR Information)
Definition: dispatch.c:627
#define IOCTL_VIDEO_SET_POWER_MANAGEMENT
Definition: ntddvdeo.h:170
Status
Definition: gdiplustypes.h:24
#define TRACE_(x)
Definition: compat.h:76
#define InterlockedExchangePointer(Target, Value)
Definition: dshow.h:45
#define ObDereferenceObject
Definition: obfuncs.h:203
#define IOCTL_VIDEO_PREPARE_FOR_EARECOVERY
Definition: ntddvdeo.h:74
#define IO_VIDEO_INCREMENT
Definition: iotypes.h:609
#define IOCTL_VIDEO_SET_DISPLAY_BRIGHTNESS
Definition: ntddvdeo.h:200
#define IOCTL_VIDEO_QUERY_SUPPORTED_BRIGHTNESS
Definition: ntddvdeo.h:194
#define IOCTL_VIDEO_DISABLE_VDM
Definition: ntddvdeo.h:44
_In_ WDFREQUEST _In_ size_t _In_ size_t _In_ ULONG IoControlCode
Definition: wdfio.h:318
__drv_aliasesMem FORCEINLINE PIO_STACK_LOCATION IoGetCurrentIrpStackLocation(_In_ PIRP Irp)
Definition: iofuncs.h:2793
#define NULL
Definition: types.h:112
#define IOCTL_VIDEO_QUERY_DISPLAY_BRIGHTNESS
Definition: ntddvdeo.h:197
unsigned int ULONG
Definition: retypes.h:1
#define IO_NO_INCREMENT
Definition: iotypes.h:598
static NTSTATUS VideoPortForwardDeviceControl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: dispatch.c:656
#define STATUS_SUCCESS
Definition: shellext.h:65
struct _NAMED_PIPE_CREATE_PARAMETERS * Parameters
Definition: iotypes.h:3128
#define IOCTL_VIDEO_USE_DEVICE_IN_SESSION
Definition: ntddvdeo.h:71
#define WARN_(ch,...)
Definition: debug.h:157
#define IOCTL_VIDEO_SET_OUTPUT_DEVICE_POWER_STATE
Definition: ntddvdeo.h:50
#define IRP_MJ_DEVICE_CONTROL
Definition: rdpdr.c:52

Referenced by VideoPortInitialize().

◆ IntVideoPortDispatchFdoPnp()

NTSTATUS NTAPI IntVideoPortDispatchFdoPnp ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 1032 of file dispatch.c.

1035 {
1037  NTSTATUS Status;
1038  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
1039 
1041 
1042  switch (IrpSp->MinorFunction)
1043  {
1044  case IRP_MN_START_DEVICE:
1046  if (NT_SUCCESS(Status) && NT_SUCCESS(Irp->IoStatus.Status))
1048  Irp->IoStatus.Status = Status;
1049  Irp->IoStatus.Information = 0;
1051  break;
1052 
1054  /* Call lower drivers, and ignore result (that's probably STATUS_NOT_SUPPORTED) */
1056  /* Now, fill resource requirements list */
1058  Irp->IoStatus.Status = Status;
1060  break;
1061 
1063  if (IrpSp->Parameters.QueryDeviceRelations.Type != BusRelations)
1064  {
1066  Status = IoCallDriver(DeviceExtension->NextDeviceObject, Irp);
1067  }
1068  else
1069  {
1071  Irp->IoStatus.Status = Status;
1073  }
1074  break;
1075 
1076  case IRP_MN_REMOVE_DEVICE:
1080 
1081  case IRP_MN_STOP_DEVICE:
1083  if (NT_SUCCESS(Status) && NT_SUCCESS(Irp->IoStatus.Status))
1085  Irp->IoStatus.Status = Status;
1086  Irp->IoStatus.Information = 0;
1088  break;
1089 
1093  Irp->IoStatus.Status = STATUS_SUCCESS;
1094  Irp->IoStatus.Information = 0;
1096  break;
1097 
1098  default:
1099  Status = Irp->IoStatus.Status;
1101  break;
1102  }
1103 
1104  return Status;
1105 }
#define IRP_MN_CANCEL_REMOVE_DEVICE
#define IRP_MN_REMOVE_DEVICE
#define IRP_MN_FILTER_RESOURCE_REQUIREMENTS
LONG NTSTATUS
Definition: precomp.h:26
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ PIRP Irp
Definition: csq.h:116
#define IRP_MN_QUERY_REMOVE_DEVICE
#define IoCompleteRequest
Definition: irp.c:1240
#define IRP_MN_QUERY_STOP_DEVICE
Status
Definition: gdiplustypes.h:24
#define IRP_MN_SURPRISE_REMOVAL
Definition: ntifs_ex.h:408
#define IRP_MN_STOP_DEVICE
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define IRP_MN_START_DEVICE
#define VOID
Definition: acefi.h:82
PDEVICE_OBJECT NextDeviceObject
Definition: videoprt.h:89
__drv_aliasesMem FORCEINLINE PIO_STACK_LOCATION IoGetCurrentIrpStackLocation(_In_ PIRP Irp)
Definition: iofuncs.h:2793
NTSTATUS NTAPI IntVideoPortForwardIrpAndWait(PDEVICE_OBJECT DeviceObject, PIRP Irp)
Definition: dispatch.c:1004
_In_ PIO_STACK_LOCATION IrpSp
Definition: create.c:4137
NTSTATUS NTAPI IntVideoPortPnPStartDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: dispatch.c:850
NTSTATUS NTAPI IoCallDriver(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: irp.c:1218
#define IRP_MN_QUERY_DEVICE_RELATIONS
#define IoSkipCurrentIrpStackLocation(Irp)
Definition: ntifs_ex.h:421
NTSTATUS NTAPI IntVideoPortQueryBusRelations(PDEVICE_OBJECT DeviceObject, PIRP Irp)
Definition: dispatch.c:944
#define IO_NO_INCREMENT
Definition: iotypes.h:598
#define IRP_MN_CANCEL_STOP_DEVICE
#define STATUS_SUCCESS
Definition: shellext.h:65
struct _NAMED_PIPE_CREATE_PARAMETERS * Parameters
Definition: iotypes.h:3128
NTSTATUS NTAPI IntVideoPortFilterResourceRequirements(IN PDEVICE_OBJECT DeviceObject, IN PIO_STACK_LOCATION IrpStack, IN PIRP Irp)
Definition: resource.c:77

Referenced by IntVideoPortDispatchPnp().

◆ IntVideoPortDispatchOpen()

NTSTATUS NTAPI IntVideoPortDispatchOpen ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 369 of file dispatch.c.

372 {
374  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
376 
377  TRACE_(VIDEOPRT, "IntVideoPortDispatchOpen\n");
378 
379  if (!CsrProcess)
380  {
381  /*
382  * We know the first open call will be from the CSRSS process
383  * to let us know its handle.
384  */
385  INFO_(VIDEOPRT, "Referencing CSRSS\n");
388  INFO_(VIDEOPRT, "CsrProcess 0x%p\n", CsrProcess);
389 
391  if (!NT_SUCCESS(Status))
392  {
393  ERR_(VIDEOPRT, "IntInitializeVideoAddressSpace() failed: 0x%lx\n", Status);
395  CsrProcess = NULL;
396  return Status;
397  }
398  }
399 
400  DeviceExtension = (PVIDEO_PORT_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
401  DriverExtension = DeviceExtension->DriverExtension;
402 
403  // FIXME: (Re-)initialize INBV only if DeviceObject doesn't belong to a mirror driver.
405 
406  if (DriverExtension->InitializationData.HwInitialize(&DeviceExtension->MiniPortDeviceExtension))
407  {
409  InterlockedIncrement((PLONG)&DeviceExtension->DeviceOpened);
410 
411  /* Query children, now that device is opened */
413  }
414  else
415  {
417  }
418 
419  Irp->IoStatus.Status = Status;
420  Irp->IoStatus.Information = FILE_OPENED;
422 
423  return Status;
424 }
#define INFO_(ch,...)
Definition: debug.h:159
VIDEO_PORT_DRIVER_EXTENSION * DriverExtension
Definition: videoprt.h:103
#define ERR_(ch,...)
Definition: debug.h:156
LONG NTSTATUS
Definition: precomp.h:26
struct _VIDEO_PORT_DEVICE_EXTENSTION * PVIDEO_PORT_DEVICE_EXTENSION
#define FILE_OPENED
Definition: nt_native.h:769
PKPROCESS CsrProcess
Definition: videoprt.c:39
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ PIRP Irp
Definition: csq.h:116
#define PsGetCurrentProcess
Definition: psfuncs.h:17
#define IoCompleteRequest
Definition: irp.c:1240
NTSTATUS NTAPI IntInitializeVideoAddressSpace(VOID)
Definition: int10.c:200
static NTSTATUS IntVideoPortInbvInitialize(VOID)
Definition: dispatch.c:274
Status
Definition: gdiplustypes.h:24
#define TRACE_(x)
Definition: compat.h:76
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define ObDereferenceObject
Definition: obfuncs.h:203
CHAR POINTER_ALIGNMENT MiniPortDeviceExtension[1]
Definition: videoprt.h:113
#define STATUS_UNSUCCESSFUL
Definition: udferr_usr.h:132
#define InterlockedIncrement
Definition: armddk.h:53
struct _KPROCESS * PKPROCESS
Definition: wdm.template.h:201
#define NULL
Definition: types.h:112
#define ObReferenceObject
Definition: obfuncs.h:204
PPCI_DRIVER_EXTENSION DriverExtension
Definition: pci.c:31
#define IO_NO_INCREMENT
Definition: iotypes.h:598
#define STATUS_SUCCESS
Definition: shellext.h:65
signed int * PLONG
Definition: retypes.h:5
VPAPI VP_STATUS NTAPI VideoPortEnumerateChildren(IN PVOID HwDeviceExtension, IN PVOID Reserved)
Definition: videoprt.c:1366

Referenced by VideoPortInitialize().

◆ IntVideoPortDispatchPnp()

NTSTATUS NTAPI IntVideoPortDispatchPnp ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 1109 of file dispatch.c.

1112 {
1113  PVIDEO_PORT_COMMON_EXTENSION CommonExtension = DeviceObject->DeviceExtension;
1114 
1115  if (CommonExtension->Fdo)
1117  else
1119 }
NTSTATUS NTAPI IntVideoPortDispatchPdoPnp(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: child.c:386
NTSTATUS NTAPI IntVideoPortDispatchFdoPnp(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: dispatch.c:1032
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ PIRP Irp
Definition: csq.h:116

Referenced by VideoPortInitialize().

◆ IntVideoPortDispatchPower()

NTSTATUS NTAPI IntVideoPortDispatchPower ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 1141 of file dispatch.c.

1144 {
1146  NTSTATUS Status = Irp->IoStatus.Status;
1147  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
1148 
1150 
1151  if (DeviceExtension->Common.Fdo)
1152  {
1155  return PoCallDriver(DeviceExtension->NextDeviceObject, Irp);
1156  }
1157  else
1158  {
1159  switch (IrpSp->MinorFunction)
1160  {
1161  case IRP_MN_QUERY_POWER:
1162  case IRP_MN_SET_POWER:
1164  break;
1165  }
1167  Irp->IoStatus.Status = Status;
1169  return Status;
1170  }
1171 }
#define IRP_MN_QUERY_POWER
LONG NTSTATUS
Definition: precomp.h:26
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ PIRP Irp
Definition: csq.h:116
#define IoCompleteRequest
Definition: irp.c:1240
Status
Definition: gdiplustypes.h:24
PDEVICE_OBJECT NextDeviceObject
Definition: videoprt.h:89
#define IRP_MN_SET_POWER
__drv_aliasesMem FORCEINLINE PIO_STACK_LOCATION IoGetCurrentIrpStackLocation(_In_ PIRP Irp)
Definition: iofuncs.h:2793
VOID NTAPI PoStartNextPowerIrp(IN PIRP Irp)
Definition: power.c:746
_In_ PIO_STACK_LOCATION IrpSp
Definition: create.c:4137
#define IoSkipCurrentIrpStackLocation(Irp)
Definition: ntifs_ex.h:421
VIDEO_PORT_COMMON_EXTENSION Common
Definition: videoprt.h:84
#define IO_NO_INCREMENT
Definition: iotypes.h:598
#define STATUS_SUCCESS
Definition: shellext.h:65

Referenced by VideoPortInitialize().

◆ IntVideoPortDispatchSystemControl()

NTSTATUS NTAPI IntVideoPortDispatchSystemControl ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 1175 of file dispatch.c.

1178 {
1179  NTSTATUS Status;
1180  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
1181 
1182  if (DeviceExtension->Common.Fdo)
1183  {
1185  return IoCallDriver(DeviceExtension->NextDeviceObject, Irp);
1186  }
1187  else
1188  {
1189  Status = Irp->IoStatus.Status;
1191  return Status;
1192  }
1193 }
LONG NTSTATUS
Definition: precomp.h:26
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ PIRP Irp
Definition: csq.h:116
#define IoCompleteRequest
Definition: irp.c:1240
Status
Definition: gdiplustypes.h:24
PDEVICE_OBJECT NextDeviceObject
Definition: videoprt.h:89
NTSTATUS NTAPI IoCallDriver(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: irp.c:1218
#define IoSkipCurrentIrpStackLocation(Irp)
Definition: ntifs_ex.h:421
VIDEO_PORT_COMMON_EXTENSION Common
Definition: videoprt.h:84
#define IO_NO_INCREMENT
Definition: iotypes.h:598

Referenced by VideoPortInitialize().

◆ IntVideoPortForwardIrpAndWait()

NTSTATUS NTAPI IntVideoPortForwardIrpAndWait ( PDEVICE_OBJECT  DeviceObject,
PIRP  Irp 
)

Definition at line 1004 of file dispatch.c.

1005 {
1006  KEVENT Event;
1007  NTSTATUS Status;
1008  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension =
1009  (PVIDEO_PORT_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
1010 
1015  &Event,
1016  TRUE,
1017  TRUE,
1018  TRUE);
1019 
1020  Status = IoCallDriver(DeviceExtension->NextDeviceObject, Irp);
1021  if (Status == STATUS_PENDING)
1022  {
1024  Status = Irp->IoStatus.Status;
1025  }
1026 
1027  return Status;
1028 }
#define TRUE
Definition: types.h:120
LONG NTSTATUS
Definition: precomp.h:26
struct _VIDEO_PORT_DEVICE_EXTENSTION * PVIDEO_PORT_DEVICE_EXTENSION
NTSTATUS NTAPI IntVideoPortForwardIrpAndWaitCompletionRoutine(PDEVICE_OBJECT Fdo, PIRP Irp, PVOID Context)
Definition: dispatch.c:929
NTSTATUS NTAPI KeWaitForSingleObject(IN PVOID Object, IN KWAIT_REASON WaitReason, IN KPROCESSOR_MODE WaitMode, IN BOOLEAN Alertable, IN PLARGE_INTEGER Timeout OPTIONAL)
Definition: wait.c:416
#define IoSetCompletionRoutine(_Irp, _CompletionRoutine, _Context, _InvokeOnSuccess, _InvokeOnError, _InvokeOnCancel)
Definition: irp.cpp:498
FORCEINLINE VOID IoCopyCurrentIrpStackLocationToNext(_Inout_ PIRP Irp)
Definition: iofuncs.h:2868
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define FALSE
Definition: types.h:117
_In_ PIRP Irp
Definition: csq.h:116
_In_ PVOID _In_ ULONG Event
Definition: iotypes.h:467
Status
Definition: gdiplustypes.h:24
#define STATUS_PENDING
Definition: ntstatus.h:82
PDEVICE_OBJECT NextDeviceObject
Definition: videoprt.h:89
#define KeInitializeEvent(pEvt, foo, foo2)
Definition: env_spec_w32.h:477
#define NULL
Definition: types.h:112
NTSTATUS NTAPI IoCallDriver(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: irp.c:1218

Referenced by IntVideoPortDispatchFdoPnp().

◆ IntVideoPortForwardIrpAndWaitCompletionRoutine()

NTSTATUS NTAPI IntVideoPortForwardIrpAndWaitCompletionRoutine ( PDEVICE_OBJECT  Fdo,
PIRP  Irp,
PVOID  Context 
)

Definition at line 929 of file dispatch.c.

933 {
935 
936  if (Irp->PendingReturned)
938 
940 }
#define STATUS_MORE_PROCESSING_REQUIRED
Definition: shellext.h:68
LONG NTAPI KeSetEvent(IN PKEVENT Event, IN KPRIORITY Increment, IN BOOLEAN Wait)
Definition: eventobj.c:159
#define FALSE
Definition: types.h:117
_In_ PIRP Irp
Definition: csq.h:116
struct tagContext Context
Definition: acpixf.h:1034
#define IO_NO_INCREMENT
Definition: iotypes.h:598

Referenced by IntVideoPortForwardIrpAndWait().

◆ IntVideoPortInbvCleanup()

static NTSTATUS IntVideoPortInbvCleanup ( IN PDEVICE_OBJECT  DeviceObject)
static

Definition at line 300 of file dispatch.c.

302 {
303  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
304  // HANDLE ThreadHandle;
305 
306  DeviceExtension = (PVIDEO_PORT_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
307  if ((DeviceExtension->DeviceOpened >= 1) &&
308  (InterlockedDecrement((PLONG)&DeviceExtension->DeviceOpened) == 0))
309  {
310  // RemoveEntryList(&DeviceExtension->HwResetListEntry);
313  // or InbvAcquireDisplayOwnership(); ?
314  }
315 
316 #if 0
317  // TODO: Find the best way to communicate the request.
318  /* Signal the INBV monitoring thread and wait for it to terminate */
320  if (ThreadHandle)
321  {
323  /* Close its handle */
324  ObCloseHandle(ThreadHandle, KernelMode);
325  }
326 #endif
327 
328  return STATUS_SUCCESS;
329 }
struct _VIDEO_PORT_DEVICE_EXTENSTION * PVIDEO_PORT_DEVICE_EXTENSION
VOID NTAPI InbvNotifyDisplayOwnershipLost(_In_ INBV_RESET_DISPLAY_PARAMETERS Callback)
Definition: inbv.c:403
if(dx==0 &&dy==0)
Definition: linetemp.h:174
NTSTATUS NTAPI KeWaitForSingleObject(IN PVOID Object, IN KWAIT_REASON WaitReason, IN KPROCESSOR_MODE WaitMode, IN BOOLEAN Alertable, IN PLARGE_INTEGER Timeout OPTIONAL)
Definition: wait.c:416
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define FALSE
Definition: types.h:117
static BOOLEAN NTAPI IntVideoPortResetDisplayParametersEx(_In_ ULONG Columns, _In_ ULONG Rows, _In_ BOOLEAN CalledByInbv)
Definition: dispatch.c:72
#define InterlockedExchangePointer(Target, Value)
Definition: dshow.h:45
static HANDLE InbvThreadHandle
Definition: dispatch.c:34
NTSTATUS NTAPI ObCloseHandle(IN HANDLE Handle, IN KPROCESSOR_MODE AccessMode)
Definition: obhandle.c:3379
#define InterlockedDecrement
Definition: armddk.h:52
#define NULL
Definition: types.h:112
#define STATUS_SUCCESS
Definition: shellext.h:65
signed int * PLONG
Definition: retypes.h:5

Referenced by IntVideoPortDispatchClose().

◆ IntVideoPortInbvInitialize()

static NTSTATUS IntVideoPortInbvInitialize ( VOID  )
static

Definition at line 274 of file dispatch.c.

275 {
276  /* Create the INBV monitoring thread if needed */
277  if (!InbvThreadHandle)
278  {
281 
283  0,
285  NULL,
286  NULL,
288  NULL);
289  if (!NT_SUCCESS(Status))
291  }
292 
293  /* Re-register the display reset callback with INBV */
295 
296  return STATUS_SUCCESS;
297 }
IN PUNICODE_STRING IN POBJECT_ATTRIBUTES ObjectAttributes
Definition: conport.c:35
static VOID NTAPI InbvMonitorThread(_In_ PVOID Context)
Definition: dispatch.c:208
LONG NTSTATUS
Definition: precomp.h:26
VOID NTAPI InbvNotifyDisplayOwnershipLost(_In_ INBV_RESET_DISPLAY_PARAMETERS Callback)
Definition: inbv.c:403
#define OBJ_KERNEL_HANDLE
Definition: winternl.h:231
static BOOLEAN NTAPI IntVideoPortResetDisplayParameters(ULONG Columns, ULONG Rows)
Definition: dispatch.c:168
Status
Definition: gdiplustypes.h:24
static HANDLE InbvThreadHandle
Definition: dispatch.c:34
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define RTL_CONSTANT_OBJECT_ATTRIBUTES(n, a)
NTSTATUS NTAPI PsCreateSystemThread(OUT PHANDLE ThreadHandle, IN ACCESS_MASK DesiredAccess, IN POBJECT_ATTRIBUTES ObjectAttributes, IN HANDLE ProcessHandle, IN PCLIENT_ID ClientId, IN PKSTART_ROUTINE StartRoutine, IN PVOID StartContext)
Definition: thread.c:602
#define NULL
Definition: types.h:112
#define STATUS_SUCCESS
Definition: shellext.h:65

Referenced by IntVideoPortDispatchOpen().

◆ IntVideoPortPnPStartDevice()

NTSTATUS NTAPI IntVideoPortPnPStartDevice ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)

Definition at line 850 of file dispatch.c.

853 {
857  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
859 
860  /* Get the initialization data we saved in VideoPortInitialize.*/
861  DriverObject = DeviceObject->DriverObject;
863  DeviceExtension = (PVIDEO_PORT_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
864 
865  /* Store some resources in the DeviceExtension. */
866  AllocatedResources = Stack->Parameters.StartDevice.AllocatedResources;
868  {
869  CM_FULL_RESOURCE_DESCRIPTOR *FullList;
872  ULONG ResourceListSize;
873 
874  /* Save the resource list */
875  ResourceCount = AllocatedResources->List[0].PartialResourceList.Count;
876  ResourceListSize =
877  FIELD_OFFSET(CM_RESOURCE_LIST, List[0].PartialResourceList.
878  PartialDescriptors[ResourceCount]);
879  DeviceExtension->AllocatedResources = ExAllocatePool(PagedPool, ResourceListSize);
880  if (DeviceExtension->AllocatedResources == NULL)
881  {
883  }
884 
885  RtlCopyMemory(DeviceExtension->AllocatedResources,
887  ResourceListSize);
888 
889  /* Get the interrupt level/vector - needed by HwFindAdapter sometimes */
890  FullList = AllocatedResources->List;
891  ASSERT(AllocatedResources->Count == 1);
892  INFO_(VIDEOPRT, "InterfaceType %u BusNumber List %u Device BusNumber %u Version %u Revision %u\n",
893  FullList->InterfaceType, FullList->BusNumber, DeviceExtension->SystemIoBusNumber, FullList->PartialResourceList.Version, FullList->PartialResourceList.Revision);
894 
895  /* FIXME: Is this ASSERT ok for resources from the PNP manager? */
896  ASSERT(FullList->InterfaceType == PCIBus);
897  ASSERT(FullList->BusNumber == DeviceExtension->SystemIoBusNumber);
898  ASSERT(1 == FullList->PartialResourceList.Version);
899  ASSERT(1 == FullList->PartialResourceList.Revision);
901  Descriptor < FullList->PartialResourceList.PartialDescriptors + FullList->PartialResourceList.Count;
902  Descriptor++)
903  {
904  if (Descriptor->Type == CmResourceTypeInterrupt)
905  {
906  DeviceExtension->InterruptLevel = Descriptor->u.Interrupt.Level;
907  DeviceExtension->InterruptVector = Descriptor->u.Interrupt.Vector;
908  if (Descriptor->ShareDisposition == CmResourceShareShared)
909  DeviceExtension->InterruptShared = TRUE;
910  else
911  DeviceExtension->InterruptShared = FALSE;
912  }
913  }
914  }
915 
916  INFO_(VIDEOPRT, "Interrupt level: 0x%x Interrupt Vector: 0x%x\n",
917  DeviceExtension->InterruptLevel,
918  DeviceExtension->InterruptVector);
919 
920  /* Create adapter device object. */
923  DeviceObject);
924 }
NTSTATUS NTAPI IntVideoPortFindAdapter(IN PDRIVER_OBJECT DriverObject, IN PVIDEO_PORT_DRIVER_EXTENSION DriverExtension, IN PDEVICE_OBJECT DeviceObject)
Definition: videoprt.c:348
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
_Must_inspect_result_ _In_ WDFIORESLIST _In_ PIO_RESOURCE_DESCRIPTOR Descriptor
Definition: wdfresource.h:339
#define INFO_(ch,...)
Definition: debug.h:159
_Inout_opt_ PDEVICE_OBJECT _Inout_opt_ PDEVICE_OBJECT _Inout_opt_ PDEVICE_OBJECT _Inout_opt_ PCM_RESOURCE_LIST * AllocatedResources
Definition: ndis.h:4640
#define TRUE
Definition: types.h:120
struct _VIDEO_PORT_DEVICE_EXTENSTION * PVIDEO_PORT_DEVICE_EXTENSION
PCM_RESOURCE_LIST AllocatedResources
Definition: videoprt.h:94
if(dx==0 &&dy==0)
Definition: linetemp.h:174
_In_ WDFREQUEST _In_ PIO_STACK_LOCATION Stack
Definition: wdfrequest.h:636
CM_PARTIAL_RESOURCE_LIST PartialResourceList
Definition: hwresource.cpp:160
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define FALSE
Definition: types.h:117
_In_ PIRP Irp
Definition: csq.h:116
_Must_inspect_result_ _In_ PDRIVER_OBJECT DriverObject
Definition: wdfdriver.h:213
#define ASSERT(a)
Definition: mode.c:44
static ULONG ResourceCount
Definition: inbv.c:50
CM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptors[1]
Definition: hwresource.cpp:119
#define ExAllocatePool(type, size)
Definition: fbtusb.h:44
_Must_inspect_result_ _In_ WDFCMRESLIST List
Definition: wdfresource.h:550
PVOID NTAPI IoGetDriverObjectExtension(IN PDRIVER_OBJECT DriverObject, IN PVOID ClientIdentificationAddress)
Definition: driver.c:1875
__drv_aliasesMem FORCEINLINE PIO_STACK_LOCATION IoGetCurrentIrpStackLocation(_In_ PIRP Irp)
Definition: iofuncs.h:2793
#define FIELD_OFFSET(t, f)
Definition: typedefs.h:255
#define NULL
Definition: types.h:112
#define CmResourceTypeInterrupt
Definition: hwresource.cpp:124
PPCI_DRIVER_EXTENSION DriverExtension
Definition: pci.c:31
unsigned int ULONG
Definition: retypes.h:1
#define RtlCopyMemory(Destination, Source, Length)
Definition: typedefs.h:263

Referenced by IntVideoPortDispatchFdoPnp().

◆ IntVideoPortQueryBusRelations()

NTSTATUS NTAPI IntVideoPortQueryBusRelations ( PDEVICE_OBJECT  DeviceObject,
PIRP  Irp 
)

Definition at line 944 of file dispatch.c.

945 {
946  PDEVICE_RELATIONS DeviceRelations;
947  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
948  PVIDEO_PORT_CHILD_EXTENSION ChildExtension;
949  ULONG i;
950  PLIST_ENTRY CurrentEntry;
952 
953  if (InterlockedCompareExchange((PLONG)&DeviceExtension->DeviceOpened, 0, 0) == 0)
954  {
955  /* Device not opened. Don't enumerate children yet */
956  WARN_(VIDEOPRT, "Skipping child enumeration because device is not opened");
958  }
959  /* Query children of the device. */
961  if (!NT_SUCCESS(Status))
962  return Status;
963 
964  /* Count the children */
965  i = 0;
966  CurrentEntry = DeviceExtension->ChildDeviceList.Flink;
967  while (CurrentEntry != &DeviceExtension->ChildDeviceList)
968  {
969  i++;
970  CurrentEntry = CurrentEntry->Flink;
971  }
972 
973  if (i == 0)
974  return Irp->IoStatus.Status;
975 
976  DeviceRelations = ExAllocatePool(PagedPool,
977  sizeof(DEVICE_RELATIONS) + ((i - 1) * sizeof(PVOID)));
978  if (!DeviceRelations) return STATUS_NO_MEMORY;
979 
980  DeviceRelations->Count = i;
981 
982  /* Add the children */
983  i = 0;
984  CurrentEntry = DeviceExtension->ChildDeviceList.Flink;
985  while (CurrentEntry != &DeviceExtension->ChildDeviceList)
986  {
987  ChildExtension = CONTAINING_RECORD(CurrentEntry, VIDEO_PORT_CHILD_EXTENSION, ListEntry);
988 
989  ObReferenceObject(ChildExtension->PhysicalDeviceObject);
990  DeviceRelations->Objects[i] = ChildExtension->PhysicalDeviceObject;
991 
992  i++;
993  CurrentEntry = CurrentEntry->Flink;
994  }
995 
996  INFO_(VIDEOPRT, "Reported %d PDOs\n", i);
997  Irp->IoStatus.Information = (ULONG_PTR)DeviceRelations;
998 
999  return STATUS_SUCCESS;
1000 }
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
#define INFO_(ch,...)
Definition: debug.h:159
PDEVICE_OBJECT Objects[1]
Definition: iotypes.h:2163
LONG NTSTATUS
Definition: precomp.h:26
#define InterlockedCompareExchange
Definition: interlocked.h:104
NTSTATUS NTAPI IntVideoPortEnumerateChildren(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: videoprt.c:1202
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_In_ PIRP Irp
Definition: csq.h:116
PFLT_MESSAGE_WAITER_QUEUE CONTAINING_RECORD(Csq, DEVICE_EXTENSION, IrpQueue)) -> WaiterQ.mLock) _IRQL_raises_(DISPATCH_LEVEL) VOID NTAPI FltpAcquireMessageWaiterLock(_In_ PIO_CSQ Csq, _Out_ PKIRQL Irql)
Definition: Messaging.c:560
Status
Definition: gdiplustypes.h:24
struct _LIST_ENTRY * Flink
Definition: typedefs.h:121
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define ExAllocatePool(type, size)
Definition: fbtusb.h:44
Definition: typedefs.h:119
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define STATUS_NO_MEMORY
Definition: ntstatus.h:260
#define ObReferenceObject
Definition: obfuncs.h:204
PDEVICE_OBJECT PhysicalDeviceObject
Definition: videoprt.h:127
unsigned int ULONG
Definition: retypes.h:1
#define ULONG_PTR
Definition: config.h:101
#define STATUS_SUCCESS
Definition: shellext.h:65
signed int * PLONG
Definition: retypes.h:5
#define WARN_(ch,...)
Definition: debug.h:157

Referenced by IntVideoPortDispatchFdoPnp().

◆ IntVideoPortResetDisplayParameters()

static BOOLEAN NTAPI IntVideoPortResetDisplayParameters ( ULONG  Columns,
ULONG  Rows 
)
static

Definition at line 168 of file dispatch.c.

169 {
170  /* Call the extended function, specifying we were called by INBV */
172 }
#define TRUE
Definition: types.h:120
static BOOLEAN NTAPI IntVideoPortResetDisplayParametersEx(_In_ ULONG Columns, _In_ ULONG Rows, _In_ BOOLEAN CalledByInbv)
Definition: dispatch.c:72
_In_ ULONG Rows
Definition: haltypes.h:7
static const COLUMN_LIST Columns[]
Definition: listview.c:19

Referenced by InbvMonitorThread(), and IntVideoPortInbvInitialize().

◆ IntVideoPortResetDisplayParametersEx()

static BOOLEAN NTAPI IntVideoPortResetDisplayParametersEx ( _In_ ULONG  Columns,
_In_ ULONG  Rows,
_In_ BOOLEAN  CalledByInbv 
)
static

Definition at line 72 of file dispatch.c.

76 {
77  BOOLEAN Success = TRUE; // Suppose we don't need to perform a full reset.
78  KIRQL OldIrql;
79  PLIST_ENTRY PrevEntry, Entry;
80  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
82 
83  /* Check if we are at dispatch level or lower, and acquire the lock */
85  if (OldIrql <= DISPATCH_LEVEL)
86  {
87  /* Loop until the lock is free, then raise IRQL to dispatch level */
90  }
92 
93  /* Bail out early if we don't have any resettable adapter */
95  {
96  Success = FALSE; // No adapter found: request HAL to perform a full reset.
97  goto Quit;
98  }
99 
100  /*
101  * If we have been unexpectedly called via a callback from
102  * InbvAcquireDisplayOwnership(), start monitoring INBV.
103  */
104  if (CalledByInbv)
106 
107  for (PrevEntry = &HwResetAdaptersList, Entry = PrevEntry->Flink;
109  PrevEntry = Entry, Entry = Entry->Flink)
110  {
111  /*
112  * Check whether the entry address is properly aligned,
113  * the device and driver extensions must be readable and
114  * the device extension properly back-linked to the last entry.
115  */
116 // #define IS_ALIGNED(addr, align) (((ULONG64)(addr) & (align - 1)) == 0)
117  if (((ULONG_PTR)Entry & (sizeof(ULONG_PTR) - 1)) != 0)
118  {
119  Success = FALSE; // We failed: request HAL to perform a full reset.
120  goto Quit;
121  }
122 
123  DeviceExtension = CONTAINING_RECORD(Entry,
125  HwResetListEntry);
126  /*
127  * As this function can be called as part of the INBV initialization
128  * by the bugcheck code, avoid any problems and protect all accesses
129  * within SEH.
130  */
131  _SEH2_TRY
132  {
133  DriverExtension = DeviceExtension->DriverExtension;
135 
136  if (DeviceExtension->HwResetListEntry.Blink != PrevEntry)
137  {
138  Success = FALSE; // We failed: request HAL to perform a full reset.
139  _SEH2_YIELD(goto Quit);
140  }
141 
142  if ((DeviceExtension->DeviceOpened >= 1) &&
143  (DriverExtension->InitializationData.HwResetHw != NULL))
144  {
145  Success &= DriverExtension->InitializationData.HwResetHw(
146  &DeviceExtension->MiniPortDeviceExtension,
147  Columns, Rows);
148  }
149  }
151  {
152  }
153  _SEH2_END;
154  }
155 
156 Quit:
157  /* Release the lock and restore the old IRQL if we were at dispatch level or lower */
159  if (OldIrql <= DISPATCH_LEVEL)
161 
162  return Success;
163 }
#define KeGetCurrentIrql()
Definition: env_spec_w32.h:706
static BOOLEAN InbvMonitoring
Definition: dispatch.c:35
struct _Entry Entry
Definition: kefuncs.h:629
VIDEO_PORT_DRIVER_EXTENSION * DriverExtension
Definition: videoprt.h:103
#define TRUE
Definition: types.h:120
struct _LIST_ENTRY * Blink
Definition: typedefs.h:122
VOID NTAPI KeAcquireSpinLockAtDpcLevel(IN PKSPIN_LOCK SpinLock)
Definition: spinlock.c:198
_Must_inspect_result_ FORCEINLINE BOOLEAN IsListEmpty(_In_ const LIST_ENTRY *ListHead)
Definition: rtlfuncs.h:57
_SEH2_TRY
Definition: create.c:4226
uint32_t ULONG_PTR
Definition: typedefs.h:65
UCHAR KIRQL
Definition: env_spec_w32.h:591
#define FALSE
Definition: types.h:117
unsigned char BOOLEAN
_In_ ULONG Rows
Definition: haltypes.h:7
KSPIN_LOCK HwResetAdaptersLock
Definition: videoprt.c:43
PFLT_MESSAGE_WAITER_QUEUE CONTAINING_RECORD(Csq, DEVICE_EXTENSION, IrpQueue)) -> WaiterQ.mLock) _IRQL_raises_(DISPATCH_LEVEL) VOID NTAPI FltpAcquireMessageWaiterLock(_In_ PIO_CSQ Csq, _Out_ PKIRQL Irql)
Definition: Messaging.c:560
BOOLEAN FASTCALL KeTestSpinLock(IN PKSPIN_LOCK SpinLock)
Definition: spinlock.c:475
struct _LIST_ENTRY * Flink
Definition: typedefs.h:121
#define ASSERT(a)
Definition: mode.c:44
#define EXCEPTION_EXECUTE_HANDLER
Definition: excpt.h:85
VOID NTAPI KeReleaseSpinLockFromDpcLevel(IN PKSPIN_LOCK SpinLock)
Definition: spinlock.c:221
CHAR POINTER_ALIGNMENT MiniPortDeviceExtension[1]
Definition: videoprt.h:113
_Requires_lock_held_ Interrupt _Releases_lock_ Interrupt _In_ _IRQL_restores_ KIRQL OldIrql
Definition: kefuncs.h:792
Definition: typedefs.h:119
#define DISPATCH_LEVEL
Definition: env_spec_w32.h:696
static const COLUMN_LIST Columns[]
Definition: listview.c:19
_SEH2_END
Definition: create.c:4400
#define NULL
Definition: types.h:112
VOID NTAPI KeRaiseIrql(KIRQL NewIrql, PKIRQL OldIrql)
Definition: spinlock.c:27
PPCI_DRIVER_EXTENSION DriverExtension
Definition: pci.c:31
LIST_ENTRY HwResetAdaptersList
#define _SEH2_EXCEPT(...)
Definition: pseh2_64.h:40
#define _SEH2_YIELD(__stmt)
Definition: pseh2_64.h:168
VOID NTAPI KeLowerIrql(KIRQL NewIrql)
Definition: spinlock.c:39
base of all file and directory entries
Definition: entries.h:82

Referenced by IntVideoPortDispatchDeviceControl(), IntVideoPortInbvCleanup(), and IntVideoPortResetDisplayParameters().

◆ IntVideoPortUnload()

VOID NTAPI IntVideoPortUnload ( PDRIVER_OBJECT  DriverObject)

Definition at line 1197 of file dispatch.c.

1198 {
1199 }

Referenced by VideoPortInitialize().

◆ IoctlName()

PSTR IoctlName ( ULONG  Ioctl)

Definition at line 450 of file dispatch.c.

451 {
452  switch (Ioctl)
453  {
455  return "IOCTL_VIDEO_ENABLE_VDM"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x00, METHOD_BUFFERED, FILE_ANY_ACCESS)
457  return "IOCTL_VIDEO_DISABLE_VDM"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x01, METHOD_BUFFERED, FILE_ANY_ACCESS)
459  return "IOCTL_VIDEO_REGISTER_VDM"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x02, METHOD_BUFFERED, FILE_ANY_ACCESS)
461  return "IOCTL_VIDEO_SET_OUTPUT_DEVICE_POWER_STATE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x03, METHOD_BUFFERED, FILE_ANY_ACCESS)
463  return "IOCTL_VIDEO_GET_OUTPUT_DEVICE_POWER_STATE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x04, METHOD_BUFFERED, FILE_ANY_ACCESS)
465  return "IOCTL_VIDEO_MONITOR_DEVICE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x05, METHOD_BUFFERED, FILE_ANY_ACCESS)
467  return "IOCTL_VIDEO_ENUM_MONITOR_PDO"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x06, METHOD_BUFFERED, FILE_ANY_ACCESS)
469  return "IOCTL_VIDEO_INIT_WIN32K_CALLBACKS"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x07, METHOD_BUFFERED, FILE_ANY_ACCESS)
471  return "IOCTL_VIDEO_HANDLE_VIDEOPARAMETERS"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x08, METHOD_BUFFERED, FILE_ANY_ACCESS)
473  return "IOCTL_VIDEO_IS_VGA_DEVICE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x09, METHOD_BUFFERED, FILE_ANY_ACCESS)
475  return "IOCTL_VIDEO_USE_DEVICE_IN_SESSION"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x0a, METHOD_BUFFERED, FILE_ANY_ACCESS)
477  return "IOCTL_VIDEO_PREPARE_FOR_EARECOVERY"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x0b, METHOD_BUFFERED, FILE_ANY_ACCESS)
479  return "IOCTL_VIDEO_SAVE_HARDWARE_STATE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x80, METHOD_BUFFERED, FILE_ANY_ACCESS)
481  return "IOCTL_VIDEO_RESTORE_HARDWARE_STATE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x81, METHOD_BUFFERED, FILE_ANY_ACCESS)
483  return "IOCTL_VIDEO_QUERY_AVAIL_MODES"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x100, METHOD_BUFFERED, FILE_ANY_ACCESS)
485  return "IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x101, METHOD_BUFFERED, FILE_ANY_ACCESS)
487  return "IOCTL_VIDEO_QUERY_CURRENT_MODE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x102, METHOD_BUFFERED, FILE_ANY_ACCESS)
489  return "IOCTL_VIDEO_SET_CURRENT_MODE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x103, METHOD_BUFFERED, FILE_ANY_ACCESS)
491  return "IOCTL_VIDEO_RESET_DEVICE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x104, METHOD_BUFFERED, FILE_ANY_ACCESS)
493  return "IOCTL_VIDEO_LOAD_AND_SET_FONT"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x105, METHOD_BUFFERED, FILE_ANY_ACCESS)
495  return "IOCTL_VIDEO_SET_PALETTE_REGISTERS"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x106, METHOD_BUFFERED, FILE_ANY_ACCESS)
497  return "IOCTL_VIDEO_SET_COLOR_REGISTERS"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x107, METHOD_BUFFERED, FILE_ANY_ACCESS)
499  return "IOCTL_VIDEO_ENABLE_CURSOR"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x108, METHOD_BUFFERED, FILE_ANY_ACCESS)
501  return "IOCTL_VIDEO_DISABLE_CURSOR"; // CTL_CODE (FILE_DEVICE_VIDEO, 0x109, METHOD_BUFFERED, FILE_ANY_ACCESS)
503  return "IOCTL_VIDEO_SET_CURSOR_ATTR"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x10a, METHOD_BUFFERED, FILE_ANY_ACCESS)
505  return "IOCTL_VIDEO_QUERY_CURSOR_ATTR"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x10b, METHOD_BUFFERED, FILE_ANY_ACCESS)
507  return "IOCTL_VIDEO_SET_CURSOR_POSITION"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x10c, METHOD_BUFFERED, FILE_ANY_ACCESS)
509  return "IOCTL_VIDEO_QUERY_CURSOR_POSITION"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x10d, METHOD_BUFFERED, FILE_ANY_ACCESS)
511  return "IOCTL_VIDEO_ENABLE_POINTER"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x10e, METHOD_BUFFERED, FILE_ANY_ACCESS)
513  return "IOCTL_VIDEO_DISABLE_POINTER"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x10f, METHOD_BUFFERED, FILE_ANY_ACCESS)
515  return "IOCTL_VIDEO_SET_POINTER_ATTR"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x110, METHOD_BUFFERED, FILE_ANY_ACCESS)
517  return "IOCTL_VIDEO_QUERY_POINTER_ATTR"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x111, METHOD_BUFFERED, FILE_ANY_ACCESS)
519  return "IOCTL_VIDEO_SET_POINTER_POSITION"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x112, METHOD_BUFFERED, FILE_ANY_ACCESS)
521  return "IOCTL_VIDEO_QUERY_POINTER_POSITION"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x113, METHOD_BUFFERED, FILE_ANY_ACCESS)
523  return "IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x114, METHOD_BUFFERED, FILE_ANY_ACCESS)
525  return "IOCTL_VIDEO_GET_BANK_SELECT_CODE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x115, METHOD_BUFFERED, FILE_ANY_ACCESS)
527  return "IOCTL_VIDEO_MAP_VIDEO_MEMORY"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x116, METHOD_BUFFERED, FILE_ANY_ACCESS)
529  return "IOCTL_VIDEO_UNMAP_VIDEO_MEMORY"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x117, METHOD_BUFFERED, FILE_ANY_ACCESS)
531  return "IOCTL_VIDEO_QUERY_PUBLIC_ACCESS_RANGES"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x118, METHOD_BUFFERED, FILE_ANY_ACCESS)
533  return "IOCTL_VIDEO_FREE_PUBLIC_ACCESS_RANGES"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x119, METHOD_BUFFERED, FILE_ANY_ACCESS)
535  return "IOCTL_VIDEO_QUERY_COLOR_CAPABILITIES"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x11a, METHOD_BUFFERED, FILE_ANY_ACCESS)
537  return "IOCTL_VIDEO_SET_POWER_MANAGEMENT"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x11b, METHOD_BUFFERED, FILE_ANY_ACCESS)
539  return "IOCTL_VIDEO_GET_POWER_MANAGEMENT"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x11c, METHOD_BUFFERED, FILE_ANY_ACCESS)
541  return "IOCTL_VIDEO_SHARE_VIDEO_MEMORY"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x11d, METHOD_BUFFERED, FILE_ANY_ACCESS)
543  return "IOCTL_VIDEO_UNSHARE_VIDEO_MEMORY"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x11e, METHOD_BUFFERED, FILE_ANY_ACCESS)
545  return "IOCTL_VIDEO_SET_COLOR_LUT_DATA"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x11f, METHOD_BUFFERED, FILE_ANY_ACCESS)
547  return "IOCTL_VIDEO_GET_CHILD_STATE"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x120, METHOD_BUFFERED, FILE_ANY_ACCESS)
549  return "IOCTL_VIDEO_VALIDATE_CHILD_STATE_CONFIGURATION"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x121, METHOD_BUFFERED, FILE_ANY_ACCESS)
551  return "IOCTL_VIDEO_SET_CHILD_STATE_CONFIGURATION"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x122, METHOD_BUFFERED, FILE_ANY_ACCESS)
553  return "IOCTL_VIDEO_SWITCH_DUALVIEW"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x123, METHOD_BUFFERED, FILE_ANY_ACCESS)
555  return "IOCTL_VIDEO_SET_BANK_POSITION"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x124, METHOD_BUFFERED, FILE_ANY_ACCESS)
557  return "IOCTL_VIDEO_QUERY_SUPPORTED_BRIGHTNESS"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x125, METHOD_BUFFERED, FILE_ANY_ACCESS)
559  return "IOCTL_VIDEO_QUERY_DISPLAY_BRIGHTNESS"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x126, METHOD_BUFFERED, FILE_ANY_ACCESS)
561  return "IOCTL_VIDEO_SET_DISPLAY_BRIGHTNESS"; // CTL_CODE(FILE_DEVICE_VIDEO, 0x127, METHOD_BUFFERED, FILE_ANY_ACCESS)
562  }
563 
564  return "<unknown ioctl code>";
565 }
#define IOCTL_VIDEO_QUERY_COLOR_CAPABILITIES
Definition: ntddvdeo.h:110
#define IOCTL_VIDEO_IS_VGA_DEVICE
Definition: ntddvdeo.h:68
#define IOCTL_VIDEO_QUERY_POINTER_POSITION
Definition: ntddvdeo.h:131
#define IOCTL_VIDEO_QUERY_POINTER_ATTR
Definition: ntddvdeo.h:125
#define IOCTL_VIDEO_SET_POINTER_ATTR
Definition: ntddvdeo.h:164
#define IOCTL_VIDEO_UNSHARE_VIDEO_MEMORY
Definition: ntddvdeo.h:182
#define IOCTL_VIDEO_REGISTER_VDM
Definition: ntddvdeo.h:47
#define IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES
Definition: ntddvdeo.h:128
#define IOCTL_VIDEO_DISABLE_CURSOR
Definition: ntddvdeo.h:77
#define IOCTL_VIDEO_SET_COLOR_LUT_DATA
Definition: ntddvdeo.h:185
#define IOCTL_VIDEO_ENABLE_VDM
Definition: ntddvdeo.h:41
#define IOCTL_VIDEO_SET_CHILD_STATE_CONFIGURATION
Definition: ntddvdeo.h:146
#define IOCTL_VIDEO_GET_POWER_MANAGEMENT
Definition: ntddvdeo.h:98
#define IOCTL_VIDEO_HANDLE_VIDEOPARAMETERS
Definition: ntddvdeo.h:65
#define IOCTL_VIDEO_RESET_DEVICE
Definition: ntddvdeo.h:137
#define IOCTL_VIDEO_MAP_VIDEO_MEMORY
Definition: ntddvdeo.h:104
#define IOCTL_VIDEO_GET_OUTPUT_DEVICE_POWER_STATE
Definition: ntddvdeo.h:53
#define IOCTL_VIDEO_GET_BANK_SELECT_CODE
Definition: ntddvdeo.h:92
#define IOCTL_VIDEO_DISABLE_POINTER
Definition: ntddvdeo.h:80
#define IOCTL_VIDEO_FREE_PUBLIC_ACCESS_RANGES
Definition: ntddvdeo.h:89
#define IOCTL_VIDEO_ENUM_MONITOR_PDO
Definition: ntddvdeo.h:59
#define IOCTL_VIDEO_QUERY_CURRENT_MODE
Definition: ntddvdeo.h:113
#define IOCTL_VIDEO_SET_CURRENT_MODE
Definition: ntddvdeo.h:152
_Must_inspect_result_ __in WDFIOTARGET __in_opt WDFREQUEST __in ULONG Ioctl
#define IOCTL_VIDEO_MONITOR_DEVICE
Definition: ntddvdeo.h:56
#define IOCTL_VIDEO_INIT_WIN32K_CALLBACKS
Definition: ntddvdeo.h:62
#define IOCTL_VIDEO_SET_PALETTE_REGISTERS
Definition: ntddvdeo.h:161
#define IOCTL_VIDEO_SET_CURSOR_POSITION
Definition: ntddvdeo.h:158
#define IOCTL_VIDEO_QUERY_CURSOR_ATTR
Definition: ntddvdeo.h:116
#define IOCTL_VIDEO_SET_POWER_MANAGEMENT
Definition: ntddvdeo.h:170
#define IOCTL_VIDEO_SET_CURSOR_ATTR
Definition: ntddvdeo.h:155
#define IOCTL_VIDEO_UNMAP_VIDEO_MEMORY
Definition: ntddvdeo.h:179
#define IOCTL_VIDEO_ENABLE_CURSOR
Definition: ntddvdeo.h:83
#define IOCTL_VIDEO_QUERY_CURSOR_POSITION
Definition: ntddvdeo.h:119
#define IOCTL_VIDEO_SWITCH_DUALVIEW
Definition: ntddvdeo.h:176
#define IOCTL_VIDEO_PREPARE_FOR_EARECOVERY
Definition: ntddvdeo.h:74
#define IOCTL_VIDEO_SET_DISPLAY_BRIGHTNESS
Definition: ntddvdeo.h:200
#define IOCTL_VIDEO_QUERY_SUPPORTED_BRIGHTNESS
Definition: ntddvdeo.h:194
#define IOCTL_VIDEO_LOAD_AND_SET_FONT
Definition: ntddvdeo.h:101
#define IOCTL_VIDEO_DISABLE_VDM
Definition: ntddvdeo.h:44
#define IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES
Definition: ntddvdeo.h:122
#define IOCTL_VIDEO_QUERY_AVAIL_MODES
Definition: ntddvdeo.h:107
#define IOCTL_VIDEO_SHARE_VIDEO_MEMORY
Definition: ntddvdeo.h:173
#define IOCTL_VIDEO_VALIDATE_CHILD_STATE_CONFIGURATION
Definition: ntddvdeo.h:188
#define IOCTL_VIDEO_GET_CHILD_STATE
Definition: ntddvdeo.h:95
#define IOCTL_VIDEO_ENABLE_POINTER
Definition: ntddvdeo.h:86
#define IOCTL_VIDEO_QUERY_PUBLIC_ACCESS_RANGES
Definition: ntddvdeo.h:134
#define IOCTL_VIDEO_QUERY_DISPLAY_BRIGHTNESS
Definition: ntddvdeo.h:197
#define IOCTL_VIDEO_RESTORE_HARDWARE_STATE
Definition: ntddvdeo.h:140
#define IOCTL_VIDEO_USE_DEVICE_IN_SESSION
Definition: ntddvdeo.h:71
#define IOCTL_VIDEO_SAVE_HARDWARE_STATE
Definition: ntddvdeo.h:143
#define IOCTL_VIDEO_SET_OUTPUT_DEVICE_POWER_STATE
Definition: ntddvdeo.h:50
#define IOCTL_VIDEO_SET_POINTER_POSITION
Definition: ntddvdeo.h:167
#define IOCTL_VIDEO_SET_COLOR_REGISTERS
Definition: ntddvdeo.h:149
#define IOCTL_VIDEO_SET_BANK_POSITION
Definition: ntddvdeo.h:191

Referenced by IntVideoPortDispatchDeviceControl().

◆ VideoPortForwardDeviceControl()

static NTSTATUS VideoPortForwardDeviceControl ( IN PDEVICE_OBJECT  DeviceObject,
IN PIRP  Irp 
)
static

Definition at line 656 of file dispatch.c.

659 {
660  PIO_STACK_LOCATION IrpStack;
662  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
664 
665  TRACE_(VIDEOPRT, "VideoPortForwardDeviceControl\n");
666 
667  IrpStack = IoGetCurrentIrpStackLocation(Irp);
668  DeviceExtension = DeviceObject->DeviceExtension;
669  DriverExtension = DeviceExtension->DriverExtension;
670 
671  /* Translate the IRP to a VRP */
672  vrp.StatusBlock = (PSTATUS_BLOCK)&Irp->IoStatus;
673  vrp.IoControlCode = IrpStack->Parameters.DeviceIoControl.IoControlCode;
674 
675  INFO_(VIDEOPRT, "- IoControlCode: %x\n", vrp.IoControlCode);
676 
677  /* We're assuming METHOD_BUFFERED */
678  vrp.InputBuffer = Irp->AssociatedIrp.SystemBuffer;
679  vrp.InputBufferLength = IrpStack->Parameters.DeviceIoControl.InputBufferLength;
680  vrp.OutputBuffer = Irp->AssociatedIrp.SystemBuffer;
681  vrp.OutputBufferLength = IrpStack->Parameters.DeviceIoControl.OutputBufferLength;
682 
683  /* Call the Miniport Driver with the VRP */
684  DriverExtension->InitializationData.HwStartIO(&DeviceExtension->MiniPortDeviceExtension,
685  &vrp);
686 
687  INFO_(VIDEOPRT, "- Returned status: %x\n", Irp->IoStatus.Status);
688 
689  /* Map from win32 error codes to NT status values. */
690  switch (Irp->IoStatus.Status)
691  {
692  case NO_ERROR:
693  return STATUS_SUCCESS;
696  case ERROR_MORE_DATA:
697  return STATUS_BUFFER_OVERFLOW;
699  return STATUS_NOT_IMPLEMENTED;
704  case ERROR_DEV_NOT_EXIST:
706  case ERROR_IO_PENDING:
707  return STATUS_PENDING;
708  default:
709  return STATUS_UNSUCCESSFUL;
710  }
711 }
#define ERROR_INVALID_PARAMETER
Definition: compat.h:101
#define STATUS_DEVICE_DOES_NOT_EXIST
Definition: ntstatus.h:428
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
#define INFO_(ch,...)
Definition: debug.h:159
VIDEO_PORT_DRIVER_EXTENSION * DriverExtension
Definition: videoprt.h:103
#define ERROR_INVALID_FUNCTION
Definition: dderror.h:6
#define STATUS_INVALID_PARAMETER
Definition: udferr_usr.h:135
struct _STATUS_BLOCK * PSTATUS_BLOCK
#define ERROR_NOT_ENOUGH_MEMORY
Definition: dderror.h:7
ULONG InputBufferLength
Definition: video.h:333
#define ERROR_IO_PENDING
Definition: dderror.h:15
#define NO_ERROR
Definition: dderror.h:5
#define STATUS_BUFFER_TOO_SMALL
Definition: shellext.h:69
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
return STATUS_NOT_IMPLEMENTED
_In_ PIRP Irp
Definition: csq.h:116
ULONG OutputBufferLength
Definition: video.h:335
#define TRACE_(x)
Definition: compat.h:76
#define STATUS_PENDING
Definition: ntstatus.h:82
CHAR POINTER_ALIGNMENT MiniPortDeviceExtension[1]
Definition: videoprt.h:113
#define STATUS_UNSUCCESSFUL
Definition: udferr_usr.h:132
#define ERROR_MORE_DATA
Definition: dderror.h:13
__drv_aliasesMem FORCEINLINE PIO_STACK_LOCATION IoGetCurrentIrpStackLocation(_In_ PIRP Irp)
Definition: iofuncs.h:2793
#define STATUS_BUFFER_OVERFLOW
Definition: shellext.h:66
PSTATUS_BLOCK StatusBlock
Definition: video.h:331
PPCI_DRIVER_EXTENSION DriverExtension
Definition: pci.c:31
#define STATUS_SUCCESS
Definition: shellext.h:65
struct _NAMED_PIPE_CREATE_PARAMETERS * Parameters
Definition: iotypes.h:3128
#define ERROR_DEV_NOT_EXIST
Definition: dderror.h:8
#define ERROR_INSUFFICIENT_BUFFER
Definition: dderror.h:10

Referenced by IntVideoPortDispatchDeviceControl().

◆ VideoPortInitWin32kCallbacks()

static NTSTATUS VideoPortInitWin32kCallbacks ( _In_ PDEVICE_OBJECT  DeviceObject,
_Inout_ PVIDEO_WIN32K_CALLBACKS  Win32kCallbacks,
_In_ ULONG  BufferLength,
_Out_ PULONG_PTR  Information 
)
static

Definition at line 627 of file dispatch.c.

632 {
633  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
634 
636  if (BufferLength < sizeof(VIDEO_WIN32K_CALLBACKS))
637  {
638  ERR_(VIDEOPRT, "Buffer too small for VIDEO_WIN32K_CALLBACKS: %lx\n",
639  BufferLength);
641  }
642 
643  /* Save the callout function globally */
644  Win32kCallout = Win32kCallbacks->Callout;
645 
646  /* Return reasonable values to Win32k */
647  Win32kCallbacks->bACPI = FALSE;
648  Win32kCallbacks->pPhysDeviceObject = DeviceExtension->PhysicalDeviceObject;
649  Win32kCallbacks->DualviewFlags = 0;
650 
651  return STATUS_SUCCESS;
652 }
_Must_inspect_result_ _In_ WDFDEVICE _In_ DEVICE_REGISTRY_PROPERTY _In_ ULONG BufferLength
Definition: wdfdevice.h:3767
#define ERR_(ch,...)
Definition: debug.h:156
_In_ WDFREQUEST _In_ NTSTATUS _In_ ULONG_PTR Information
Definition: wdfrequest.h:1044
#define STATUS_BUFFER_TOO_SMALL
Definition: shellext.h:69
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define FALSE
Definition: types.h:117
PDEVICE_OBJECT PhysicalDeviceObject
Definition: videoprt.h:87
struct _VIDEO_WIN32K_CALLBACKS VIDEO_WIN32K_CALLBACKS
#define STATUS_SUCCESS
Definition: shellext.h:65
static PVIDEO_WIN32K_CALLOUT Win32kCallout
Definition: dispatch.c:33

Referenced by IntVideoPortDispatchDeviceControl().

◆ VideoPortUseDeviceInSession()

static NTSTATUS VideoPortUseDeviceInSession ( _Inout_ PDEVICE_OBJECT  DeviceObject,
_Inout_ PVIDEO_DEVICE_SESSION_STATUS  SessionState,
_In_ ULONG  BufferLength,
_Out_ PULONG_PTR  Information 
)
static

Definition at line 569 of file dispatch.c.

574 {
575  PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
576 
577  /* Check buffer size */
580  {
581  ERR_(VIDEOPRT, "Buffer too small for VIDEO_DEVICE_SESSION_STATUS: %lx\n",
582  BufferLength);
584  }
585 
586  /* Get the device extension */
587  DeviceExtension = DeviceObject->DeviceExtension;
588 
589  /* Shall we enable the session? */
590  if (SessionState->bEnable)
591  {
592  /* Check if we have no session yet */
593  if (DeviceExtension->SessionId == -1)
594  {
595  /* Use this session and return success */
596  DeviceExtension->SessionId = PsGetCurrentProcessSessionId();
597  SessionState->bSuccess = TRUE;
598  }
599  else
600  {
601  ERR_(VIDEOPRT, "Requested to set session, but session is already set to: 0x%lx\n",
602  DeviceExtension->SessionId);
603  SessionState->bSuccess = FALSE;
604  }
605  }
606  else
607  {
608  /* Check if we belong to the current session */
609  if (DeviceExtension->SessionId == PsGetCurrentProcessSessionId())
610  {
611  /* Reset the session and return success */
612  DeviceExtension->SessionId = -1;
613  SessionState->bSuccess = TRUE;
614  }
615  else
616  {
617  ERR_(VIDEOPRT, "Requested to reset session, but session is not set\n");
618  SessionState->bSuccess = FALSE;
619  }
620  }
621 
622  return STATUS_SUCCESS;
623 }
_Must_inspect_result_ _In_ WDFDEVICE _In_ DEVICE_REGISTRY_PROPERTY _In_ ULONG BufferLength
Definition: wdfdevice.h:3767
#define TRUE
Definition: types.h:120
struct _VIDEO_DEVICE_SESSION_STATUS VIDEO_DEVICE_SESSION_STATUS
#define ERR_(ch,...)
Definition: debug.h:156
_In_ WDFREQUEST _In_ NTSTATUS _In_ ULONG_PTR Information
Definition: wdfrequest.h:1044
#define STATUS_BUFFER_TOO_SMALL
Definition: shellext.h:69
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
#define FALSE
Definition: types.h:117
ULONG NTAPI PsGetCurrentProcessSessionId(VOID)
Definition: process.c:1133
#define STATUS_SUCCESS
Definition: shellext.h:65

Referenced by IntVideoPortDispatchDeviceControl().

◆ VideoPortWin32kCallout()

static VOID VideoPortWin32kCallout ( _In_ PVIDEO_WIN32K_CALLBACKS_PARAMS  CallbackParams)
static

Definition at line 40 of file dispatch.c.

42 {
43  if (!Win32kCallout)
44  return;
45 
46  /* Perform the call in the context of CSRSS */
47  if (!CsrProcess)
48  return;
49 
51  Win32kCallout(CallbackParams);
53 }
PKPROCESS CsrProcess
Definition: videoprt.c:39
VOID NTAPI KeDetachProcess(VOID)
Definition: procobj.c:621
VOID NTAPI KeAttachProcess(IN PKPROCESS Process)
Definition: procobj.c:582
static PVIDEO_WIN32K_CALLOUT Win32kCallout
Definition: dispatch.c:33

Referenced by InbvMonitorThread().

Variable Documentation

◆ InbvMonitoring

BOOLEAN InbvMonitoring = FALSE
static

Definition at line 35 of file dispatch.c.

Referenced by InbvMonitorThread(), and IntVideoPortResetDisplayParametersEx().

◆ InbvThreadHandle

HANDLE InbvThreadHandle = NULL
static

Definition at line 34 of file dispatch.c.

Referenced by IntVideoPortInbvCleanup(), and IntVideoPortInbvInitialize().

◆ Win32kCallout

PVIDEO_WIN32K_CALLOUT Win32kCallout = NULL
static

Definition at line 33 of file dispatch.c.

Referenced by VideoPortInitWin32kCallbacks(), and VideoPortWin32kCallout().