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Better support of GUID_DEVICE_SYS_BUTTON interface.
Now, the kernel can receive power events from the keyboard, but only reacts by displaying a message svn path=/trunk/; revision=27407
This commit is contained in:
Hervé Poussineau
parent
802891c598
commit
e8c10e466d
1 changed files with 184 additions and 21 deletions
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@ -8,12 +8,18 @@
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*/
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#include <ntoskrnl.h>
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//#define NDEBUG
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#define NDEBUG
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#include <internal/debug.h>
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PKWIN32_POWEREVENT_CALLOUT PopEventCallout;
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extern PCALLBACK_OBJECT SetSystemTimeCallback;
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static VOID
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NTAPI
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PopGetSysButton(
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IN PDEVICE_OBJECT DeviceObject,
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IN PVOID Context);
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VOID
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NTAPI
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PoNotifySystemTimeSet(VOID)
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@ -34,6 +40,101 @@ PoNotifySystemTimeSet(VOID)
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}
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}
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typedef struct _SYS_BUTTON_CONTEXT
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{
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PDEVICE_OBJECT DeviceObject;
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PIO_WORKITEM WorkItem;
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KEVENT Event;
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IO_STATUS_BLOCK IoStatusBlock;
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ULONG SysButton;
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} SYS_BUTTON_CONTEXT, *PSYS_BUTTON_CONTEXT;
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static NTSTATUS
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NTAPI
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PopGetSysButtonCompletion(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN PVOID Context)
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{
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PSYS_BUTTON_CONTEXT SysButtonContext = Context;
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ULONG SysButton;
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if (Irp->PendingReturned)
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IoMarkIrpPending(Irp);
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/* The DeviceObject can be NULL, so use the one we stored */
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DeviceObject = SysButtonContext->DeviceObject;
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/* FIXME: What do do with the sys button event? */
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SysButton = *(PULONG)Irp->AssociatedIrp.SystemBuffer;
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{
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DPRINT1("A device reported the event 0x%x (", SysButton);
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if (SysButton & SYS_BUTTON_POWER) DbgPrint(" POWER");
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if (SysButton & SYS_BUTTON_SLEEP) DbgPrint(" SLEEP");
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if (SysButton & SYS_BUTTON_LID) DbgPrint(" LID");
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if (SysButton == 0) DbgPrint(" WAKE");
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DbgPrint(" )\n");
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}
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/* Allocate a new workitem to send the next IOCTL_GET_SYS_BUTTON_EVENT */
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SysButtonContext->WorkItem = IoAllocateWorkItem(DeviceObject);
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if (!SysButtonContext->WorkItem)
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{
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DPRINT("IoAllocateWorkItem() failed\n");
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ExFreePool(SysButtonContext);
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return STATUS_SUCCESS;
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}
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IoQueueWorkItem(
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SysButtonContext->WorkItem,
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PopGetSysButton,
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DelayedWorkQueue,
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SysButtonContext);
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return STATUS_SUCCESS /* STATUS_CONTINUE_COMPLETION */;
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}
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static VOID
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NTAPI
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PopGetSysButton(
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IN PDEVICE_OBJECT DeviceObject,
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IN PVOID Context)
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{
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PSYS_BUTTON_CONTEXT SysButtonContext = Context;
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PIO_WORKITEM CurrentWorkItem = SysButtonContext->WorkItem;;
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PIRP Irp;
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/* Get button pressed (IOCTL_GET_SYS_BUTTON_EVENT) */
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KeInitializeEvent(&SysButtonContext->Event, NotificationEvent, FALSE);
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Irp = IoBuildDeviceIoControlRequest(
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IOCTL_GET_SYS_BUTTON_EVENT,
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DeviceObject,
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NULL,
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0,
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&SysButtonContext->SysButton,
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sizeof(SysButtonContext->SysButton),
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FALSE,
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&SysButtonContext->Event,
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&SysButtonContext->IoStatusBlock);
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if (Irp)
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{
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IoSetCompletionRoutine(
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Irp,
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PopGetSysButtonCompletion,
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SysButtonContext,
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TRUE,
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FALSE,
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FALSE);
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IoCallDriver(DeviceObject, Irp);
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}
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else
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{
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DPRINT1("IoBuildDeviceIoControlRequest() failed\n");
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ExFreePool(SysButtonContext);
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}
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IoFreeWorkItem(CurrentWorkItem);
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}
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NTSTATUS
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NTAPI
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PopAddRemoveSysCapsCallback(
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@ -41,9 +142,14 @@ PopAddRemoveSysCapsCallback(
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IN PVOID Context)
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{
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PDEVICE_INTERFACE_CHANGE_NOTIFICATION Notification;
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PSYS_BUTTON_CONTEXT SysButtonContext;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE DeviceHandle;
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HANDLE FileHandle;
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PDEVICE_OBJECT DeviceObject;
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PFILE_OBJECT FileObject;
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PIRP Irp;
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IO_STATUS_BLOCK IoStatusBlock;
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KEVENT Event;
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BOOLEAN Arrival;
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ULONG Caps;
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NTSTATUS Status;
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@ -67,7 +173,7 @@ PopAddRemoveSysCapsCallback(
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{
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DPRINT("Arrival of %wZ\n", Notification->SymbolicLinkName);
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/* Open device */
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/* Open the device */
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InitializeObjectAttributes(
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&ObjectAttributes,
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Notification->SymbolicLinkName,
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@ -75,7 +181,7 @@ PopAddRemoveSysCapsCallback(
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NULL,
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NULL);
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Status = ZwOpenFile(
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&DeviceHandle,
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&FileHandle,
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FILE_READ_DATA,
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&ObjectAttributes,
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&IoStatusBlock,
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@ -86,32 +192,89 @@ PopAddRemoveSysCapsCallback(
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DPRINT("ZwOpenFile() failed with status 0x%08lx\n", Status);
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return Status;
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}
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Status = ObReferenceObjectByHandle(
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FileHandle,
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FILE_READ_DATA,
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IoFileObjectType,
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ExGetPreviousMode(),
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(PVOID*)&FileObject,
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NULL);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ObReferenceObjectByHandle() failed with status 0x%08lx\n", Status);
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ZwClose(FileHandle);
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return Status;
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}
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DeviceObject = IoGetRelatedDeviceObject(FileObject);
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ObDereferenceObject(FileObject);
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/* Send IOCTL_GET_SYS_BUTTON_CAPS to get new caps */
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Status = ZwDeviceIoControlFile(
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DeviceHandle,
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NULL,
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NULL,
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NULL,
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&IoStatusBlock,
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/* Get capabilities (IOCTL_GET_SYS_BUTTON_CAPS) */
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KeInitializeEvent(&Event, NotificationEvent, FALSE);
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Irp = IoBuildDeviceIoControlRequest(
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IOCTL_GET_SYS_BUTTON_CAPS,
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DeviceObject,
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NULL,
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0,
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&Caps,
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sizeof(Caps));
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sizeof(Caps),
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FALSE,
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&Event,
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&IoStatusBlock);
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if (!Irp)
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{
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DPRINT("IoBuildDeviceIoControlRequest() failed\n");
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ZwClose(FileHandle);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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Status = IoCallDriver(DeviceObject, Irp);
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if (Status == STATUS_PENDING)
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{
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DPRINT("IOCTL_GET_SYS_BUTTON_CAPS pending\n");
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KeWaitForSingleObject(&Event, Suspended, KernelMode, FALSE, NULL);
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Status = IoStatusBlock.Status;
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}
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwDeviceIoControlFile(IOCTL_GET_SYS_BUTTON_CAPS) failed with status 0x%08lx\n", Status);
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ZwClose(DeviceHandle);
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return Status;
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DPRINT("Sending IOCTL_GET_SYS_BUTTON_CAPS failed with status 0x%08x\n", Status);
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ZwClose(FileHandle);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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/* FIXME: What do do with this? */
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DPRINT1("Device capabilities: 0x%lx\n", Caps);
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/* Send IOCTL_GET_SYS_BUTTON_CAPS to get current caps */
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/* FIXME: Set a IO completion routine on it to be able to send a new one */
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DPRINT1("Send a IOCTL_GET_SYS_BUTTON_EVENT\n");
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return ZwClose(DeviceHandle);
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/* FIXME: What do do with the capabilities? */
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{
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DPRINT1("Device capabilities: 0x%x (", Caps);
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if (Caps & SYS_BUTTON_POWER) DbgPrint(" POWER");
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if (Caps & SYS_BUTTON_SLEEP) DbgPrint(" SLEEP");
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if (Caps & SYS_BUTTON_LID) DbgPrint(" LID");
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DbgPrint(" )\n");
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}
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SysButtonContext = ExAllocatePool(NonPagedPool, sizeof(SYS_BUTTON_CONTEXT));
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if (!SysButtonContext)
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{
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DPRINT("ExAllocatePool() failed\n");
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ZwClose(FileHandle);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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/* Queue a work item to get sys button event */
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SysButtonContext->WorkItem = IoAllocateWorkItem(DeviceObject);
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SysButtonContext->DeviceObject = DeviceObject;
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if (!SysButtonContext->WorkItem)
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{
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DPRINT("IoAllocateWorkItem() failed\n");
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ZwClose(FileHandle);
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ExFreePool(SysButtonContext);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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IoQueueWorkItem(
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SysButtonContext->WorkItem,
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PopGetSysButton,
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DelayedWorkQueue,
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SysButtonContext);
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ZwClose(FileHandle);
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return STATUS_SUCCESS;
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}
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else
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{
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