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hidclass.sys: Implment IRP_MJ_CREATE and IRP_MJ_CLOSE for HID Devices.

This commit is contained in:
Aric Stewart 2015-09-14 09:58:39 -05:00 committed by Alexandre Julliard
parent 28125d40c2
commit 01aa7a6ec1
4 changed files with 56 additions and 0 deletions
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28
dlls/hidclass.sys/buffer.c
View File

@ -79,3 +79,31 @@ void RingBuffer_Destroy(struct ReportRingBuffer *ring)
DeleteCriticalSection(&ring->lock);
HeapFree(GetProcessHeap(), 0, ring);
}
UINT RingBuffer_AddPointer(struct ReportRingBuffer *ring)
{
UINT idx;
EnterCriticalSection(&ring->lock);
for (idx = 0; idx < ring->pointer_alloc; idx++)
if (ring->pointers[idx] == -1)
break;
if (idx >= ring->pointer_alloc)
{
int count = idx = ring->pointer_alloc;
ring->pointer_alloc *= 2;
ring->pointers = HeapReAlloc(GetProcessHeap(), 0, ring->pointers, sizeof(int) * ring->pointer_alloc);
for( ;count < ring->pointer_alloc; count++)
ring->pointers[count] = -1;
}
ring->pointers[idx] = ring->start;
LeaveCriticalSection(&ring->lock);
return idx;
}
void RingBuffer_RemovePointer(struct ReportRingBuffer *ring, UINT index)
{
EnterCriticalSection(&ring->lock);
if (index < ring->pointer_alloc)
ring->pointers[index] = 0xffffffff;
LeaveCriticalSection(&ring->lock);
}

22
dlls/hidclass.sys/device.c
View File

@ -351,3 +351,25 @@ NTSTATUS WINAPI HID_Device_ioctl(DEVICE_OBJECT *device, IRP *irp)
return rc;
}
NTSTATUS WINAPI HID_Device_create(DEVICE_OBJECT *device, IRP *irp)
{
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
TRACE("Open handle on device %p\n", device);
irp->Tail.Overlay.OriginalFileObject->FsContext = UlongToPtr(RingBuffer_AddPointer(ext->ring_buffer));
irp->IoStatus.u.Status = STATUS_SUCCESS;
IoCompleteRequest( irp, IO_NO_INCREMENT );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI HID_Device_close(DEVICE_OBJECT *device, IRP *irp)
{
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
int ptr = PtrToUlong(irp->Tail.Overlay.OriginalFileObject->FsContext);
TRACE("Close handle on device %p\n", device);
RingBuffer_RemovePointer(ext->ring_buffer, ptr);
irp->IoStatus.u.Status = STATUS_SUCCESS;
IoCompleteRequest( irp, IO_NO_INCREMENT );
return STATUS_SUCCESS;
}

4
dlls/hidclass.sys/hid.h
View File

@ -56,6 +56,8 @@ typedef struct _BASE_DEVICE_EXTENSTION {
/* Minidriver Specific stuff will end up here */
} BASE_DEVICE_EXTENSION;
UINT RingBuffer_AddPointer(struct ReportRingBuffer *buffer) DECLSPEC_HIDDEN;
void RingBuffer_RemovePointer(struct ReportRingBuffer *ring, UINT index) DECLSPEC_HIDDEN;
void RingBuffer_Destroy(struct ReportRingBuffer *buffer) DECLSPEC_HIDDEN;
struct ReportRingBuffer* RingBuffer_Create(UINT buffer_size) DECLSPEC_HIDDEN;
@ -79,6 +81,8 @@ NTSTATUS HID_LinkDevice(DEVICE_OBJECT *device, LPCWSTR serial, LPCWSTR index) DE
void HID_DeleteDevice(HID_MINIDRIVER_REGISTRATION *driver, DEVICE_OBJECT *device) DECLSPEC_HIDDEN;
NTSTATUS WINAPI HID_Device_ioctl(DEVICE_OBJECT *device, IRP *irp) DECLSPEC_HIDDEN;
NTSTATUS WINAPI HID_Device_create(DEVICE_OBJECT *device, IRP *irp) DECLSPEC_HIDDEN;
NTSTATUS WINAPI HID_Device_close(DEVICE_OBJECT *device, IRP *irp) DECLSPEC_HIDDEN;
/* Pseudo-Plug and Play support*/
NTSTATUS WINAPI PNP_AddDevice(DRIVER_OBJECT *driver, DEVICE_OBJECT* PDO) DECLSPEC_HIDDEN;

2
dlls/hidclass.sys/main.c
View File

@ -69,6 +69,8 @@ NTSTATUS WINAPI HidRegisterMinidriver(HID_MINIDRIVER_REGISTRATION *registration)
registration->DriverObject->DriverUnload = UnloadDriver;
registration->DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = HID_Device_ioctl;
registration->DriverObject->MajorFunction[IRP_MJ_CREATE] = HID_Device_create;
registration->DriverObject->MajorFunction[IRP_MJ_CLOSE] = HID_Device_close;
driver->AddDevice = registration->DriverObject->DriverExtension->AddDevice;
registration->DriverObject->DriverExtension->AddDevice = PNP_AddDevice;