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Sweden-Number/dlls/hidclass.sys/device.c

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/*
* HIDClass device functions
*
* Copyright (C) 2015 Aric Stewart
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdlib.h>
#include "hid.h"
#include "winreg.h"
#include "winuser.h"
#include "ddk/hidsdi.h"
#include "ddk/hidtypes.h"
#include "ddk/wdm.h"
#include "wine/debug.h"
#include "wine/list.h"
WINE_DEFAULT_DEBUG_CHANNEL(hid);
IRP *pop_irp_from_queue(BASE_DEVICE_EXTENSION *ext)
{
LIST_ENTRY *entry;
KIRQL old_irql;
IRP *irp = NULL;
KeAcquireSpinLock(&ext->u.pdo.irp_queue_lock, &old_irql);
while (!irp && (entry = RemoveHeadList(&ext->u.pdo.irp_queue)) != &ext->u.pdo.irp_queue)
{
irp = CONTAINING_RECORD(entry, IRP, Tail.Overlay.ListEntry);
if (!IoSetCancelRoutine(irp, NULL))
{
/* cancel routine is already cleared, meaning that it was called. let it handle completion. */
InitializeListHead(&irp->Tail.Overlay.ListEntry);
irp = NULL;
}
}
KeReleaseSpinLock(&ext->u.pdo.irp_queue_lock, old_irql);
return irp;
}
static void WINAPI read_cancel_routine(DEVICE_OBJECT *device, IRP *irp)
{
BASE_DEVICE_EXTENSION *ext;
KIRQL old_irql;
TRACE("cancel %p IRP on device %p\n", irp, device);
ext = device->DeviceExtension;
IoReleaseCancelSpinLock(irp->CancelIrql);
KeAcquireSpinLock(&ext->u.pdo.irp_queue_lock, &old_irql);
RemoveEntryList(&irp->Tail.Overlay.ListEntry);
KeReleaseSpinLock(&ext->u.pdo.irp_queue_lock, old_irql);
irp->IoStatus.Status = STATUS_CANCELLED;
irp->IoStatus.Information = 0;
IoCompleteRequest(irp, IO_NO_INCREMENT);
}
static struct hid_report *hid_report_create( HID_XFER_PACKET *packet )
{
struct hid_report *report;
if (!(report = malloc( offsetof( struct hid_report, buffer[packet->reportBufferLen] ) )))
return NULL;
report->ref = 1;
report->length = packet->reportBufferLen;
memcpy( report->buffer, packet->reportBuffer, report->length );
return report;
}
static void hid_report_incref( struct hid_report *report )
{
InterlockedIncrement( &report->ref );
}
static void hid_report_decref( struct hid_report *report )
{
if (!report) return;
if (InterlockedDecrement( &report->ref ) == 0) free( report );
}
static struct hid_report_queue *hid_report_queue_create( void )
{
struct hid_report_queue *queue;
if (!(queue = calloc( 1, sizeof(struct hid_report_queue) ))) return NULL;
KeInitializeSpinLock( &queue->lock );
list_init( &queue->entry );
queue->length = 32;
queue->read_idx = 0;
queue->write_idx = 0;
return queue;
}
static void hid_report_queue_destroy( struct hid_report_queue *queue )
{
while (queue->length--) hid_report_decref( queue->reports[queue->length] );
free( queue );
}
static NTSTATUS hid_report_queue_resize( struct hid_report_queue *queue, ULONG length )
{
struct hid_report *old_reports[512];
LONG old_length = queue->length;
KIRQL irql;
if (length < 2 || length > 512) return STATUS_INVALID_PARAMETER;
if (length == queue->length) return STATUS_SUCCESS;
KeAcquireSpinLock( &queue->lock, &irql );
memcpy( old_reports, queue->reports, old_length * sizeof(void *) );
memset( queue->reports, 0, old_length * sizeof(void *) );
queue->length = length;
queue->write_idx = 0;
queue->read_idx = 0;
KeReleaseSpinLock( &queue->lock, irql );
while (old_length--) hid_report_decref( old_reports[old_length] );
return STATUS_SUCCESS;
}
static void hid_report_queue_push( struct hid_report_queue *queue, struct hid_report *report )
{
ULONG i = queue->write_idx, next = i + 1;
struct hid_report *prev;
KIRQL irql;
if (next >= queue->length) next = 0;
hid_report_incref( report );
KeAcquireSpinLock( &queue->lock, &irql );
prev = queue->reports[i];
queue->reports[i] = report;
if (next != queue->read_idx) queue->write_idx = next;
KeReleaseSpinLock( &queue->lock, irql );
hid_report_decref( prev );
}
static struct hid_report *hid_report_queue_pop( struct hid_report_queue *queue )
{
ULONG i = queue->read_idx, next = i + 1;
struct hid_report *report;
KIRQL irql;
if (next >= queue->length) next = 0;
KeAcquireSpinLock( &queue->lock, &irql );
report = queue->reports[i];
queue->reports[i] = NULL;
if (i != queue->write_idx) queue->read_idx = next;
KeReleaseSpinLock( &queue->lock, irql );
return report;
}
static void hid_device_queue_input( DEVICE_OBJECT *device, HID_XFER_PACKET *packet )
{
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
HIDP_COLLECTION_DESC *desc = ext->u.pdo.device_desc.CollectionDesc;
struct hid_report *last_report, *report;
struct hid_report_queue *queue;
RAWINPUT *rawinput;
ULONG size;
KIRQL irql;
IRP *irp;
size = offsetof( RAWINPUT, data.hid.bRawData[packet->reportBufferLen] );
if (!(rawinput = malloc( size ))) ERR( "Failed to allocate rawinput data!\n" );
else
{
INPUT input;
rawinput->header.dwType = RIM_TYPEHID;
rawinput->header.dwSize = size;
rawinput->header.hDevice = ULongToHandle( ext->u.pdo.rawinput_handle );
rawinput->header.wParam = RIM_INPUT;
rawinput->data.hid.dwCount = 1;
rawinput->data.hid.dwSizeHid = packet->reportBufferLen;
memcpy( rawinput->data.hid.bRawData, packet->reportBuffer, packet->reportBufferLen );
input.type = INPUT_HARDWARE;
input.hi.uMsg = WM_INPUT;
input.hi.wParamH = 0;
input.hi.wParamL = 0;
__wine_send_input( 0, &input, rawinput );
free( rawinput );
}
if (!(last_report = hid_report_create( packet )))
{
ERR( "Failed to allocate hid_report!\n" );
return;
}
KeAcquireSpinLock( &ext->u.pdo.report_queues_lock, &irql );
LIST_FOR_EACH_ENTRY( queue, &ext->u.pdo.report_queues, struct hid_report_queue, entry )
hid_report_queue_push( queue, last_report );
KeReleaseSpinLock( &ext->u.pdo.report_queues_lock, irql );
while ((irp = pop_irp_from_queue( ext )))
{
queue = irp->Tail.Overlay.OriginalFileObject->FsContext;
if (!(report = hid_report_queue_pop( queue ))) hid_report_incref( (report = last_report) );
memcpy( irp->AssociatedIrp.SystemBuffer, report->buffer, desc->InputLength );
irp->IoStatus.Information = report->length;
irp->IoStatus.Status = STATUS_SUCCESS;
hid_report_decref( report );
IoCompleteRequest( irp, IO_NO_INCREMENT );
}
hid_report_decref( last_report );
}
static DWORD CALLBACK hid_device_thread(void *args)
{
DEVICE_OBJECT *device = (DEVICE_OBJECT*)args;
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
HIDP_COLLECTION_DESC *desc = ext->u.pdo.device_desc.CollectionDesc;
HIDP_REPORT_IDS *reports = ext->u.pdo.device_desc.ReportIDs;
ULONG report_count = ext->u.pdo.device_desc.ReportIDsLength;
ULONG i, report_id = 0, poll_interval = 0;
HID_XFER_PACKET *packet;
IO_STATUS_BLOCK io;
BYTE *buffer;
DWORD res;
packet = malloc( sizeof(*packet) + desc->InputLength );
buffer = (BYTE *)(packet + 1);
packet->reportBuffer = buffer;
if (ext->u.pdo.information.Polled) poll_interval = ext->u.pdo.poll_interval;
for (i = 0; i < report_count; ++i)
{
if (!reports[i].ReportID || reports[i].InputLength)
break;
}
if (i == report_count) WARN("no input report found.\n");
else report_id = reports[i].ReportID;
do
{
packet->reportId = buffer[0] = report_id;
packet->reportBufferLen = desc->InputLength;
if (!report_id)
{
packet->reportBuffer++;
packet->reportBufferLen--;
}
if (!poll_interval)
call_minidriver( IOCTL_HID_READ_REPORT, ext->u.pdo.parent_fdo, NULL, 0,
packet->reportBuffer, packet->reportBufferLen, &io );
else
call_minidriver( IOCTL_HID_GET_INPUT_REPORT, ext->u.pdo.parent_fdo, NULL, 0,
packet, sizeof(*packet), &io );
if (io.Status == STATUS_SUCCESS)
{
if (!report_id) io.Information++;
packet->reportId = buffer[0];
packet->reportBuffer = buffer;
packet->reportBufferLen = io.Information;
hid_device_queue_input( device, packet );
}
res = WaitForSingleObject(ext->u.pdo.halt_event, poll_interval);
} while (res == WAIT_TIMEOUT);
TRACE("device thread exiting, res %#x\n", res);
return 1;
}
void HID_StartDeviceThread(DEVICE_OBJECT *device)
{
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
ext->u.pdo.halt_event = CreateEventA(NULL, TRUE, FALSE, NULL);
ext->u.pdo.thread = CreateThread(NULL, 0, hid_device_thread, device, 0, NULL);
}
static void handle_IOCTL_HID_GET_COLLECTION_INFORMATION( IRP *irp, BASE_DEVICE_EXTENSION *ext )
{
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(HID_COLLECTION_INFORMATION))
{
irp->IoStatus.Status = STATUS_BUFFER_OVERFLOW;
irp->IoStatus.Information = 0;
}
else
{
memcpy(irp->AssociatedIrp.SystemBuffer, &ext->u.pdo.information, sizeof(HID_COLLECTION_INFORMATION));
irp->IoStatus.Information = sizeof(HID_COLLECTION_INFORMATION);
irp->IoStatus.Status = STATUS_SUCCESS;
}
}
static void handle_IOCTL_HID_GET_COLLECTION_DESCRIPTOR( IRP *irp, BASE_DEVICE_EXTENSION *ext )
{
HIDP_COLLECTION_DESC *desc = ext->u.pdo.device_desc.CollectionDesc;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < desc->PreparsedDataLength)
{
irp->IoStatus.Status = STATUS_INVALID_BUFFER_SIZE;
irp->IoStatus.Information = 0;
}
else
{
memcpy( irp->UserBuffer, desc->PreparsedData, desc->PreparsedDataLength );
irp->IoStatus.Information = desc->PreparsedDataLength;
irp->IoStatus.Status = STATUS_SUCCESS;
}
}
static void handle_minidriver_string( BASE_DEVICE_EXTENSION *ext, IRP *irp, SHORT index )
{
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
WCHAR buffer[127];
ULONG InputBuffer;
InputBuffer = MAKELONG(index, 0);
call_minidriver( IOCTL_HID_GET_STRING, ext->u.pdo.parent_fdo, ULongToPtr( InputBuffer ),
sizeof(InputBuffer), buffer, sizeof(buffer), &irp->IoStatus );
if (irp->IoStatus.Status == STATUS_SUCCESS)
{
WCHAR *out_buffer = MmGetSystemAddressForMdlSafe(irp->MdlAddress, NormalPagePriority);
int length = irpsp->Parameters.DeviceIoControl.OutputBufferLength/sizeof(WCHAR);
TRACE("got string %s from minidriver\n",debugstr_w(buffer));
lstrcpynW(out_buffer, buffer, length);
irp->IoStatus.Information = (lstrlenW(buffer)+1) * sizeof(WCHAR);
}
}
static void hid_device_xfer_report( BASE_DEVICE_EXTENSION *ext, ULONG code, IRP *irp )
{
HIDP_REPORT_IDS *reports = ext->u.pdo.device_desc.ReportIDs;
ULONG report_count = ext->u.pdo.device_desc.ReportIDsLength;
IO_STACK_LOCATION *stack = IoGetCurrentIrpStackLocation( irp );
ULONG i, report_len = 0, buffer_len = 0;
HID_XFER_PACKET packet;
BYTE *buffer = NULL;
switch (code)
{
case IOCTL_HID_GET_FEATURE:
case IOCTL_HID_GET_INPUT_REPORT:
buffer_len = stack->Parameters.DeviceIoControl.OutputBufferLength;
buffer = MmGetSystemAddressForMdlSafe( irp->MdlAddress, NormalPagePriority );
break;
case IOCTL_HID_SET_FEATURE:
case IOCTL_HID_SET_OUTPUT_REPORT:
buffer_len = stack->Parameters.DeviceIoControl.InputBufferLength;
buffer = irp->AssociatedIrp.SystemBuffer;
break;
case IOCTL_HID_WRITE_REPORT:
buffer_len = stack->Parameters.Write.Length;
buffer = irp->AssociatedIrp.SystemBuffer;
break;
}
if (!buffer || !buffer_len)
{
irp->IoStatus.Status = STATUS_INVALID_USER_BUFFER;
return;
}
for (i = 0; i < report_count; ++i)
{
if (!reports[i].ReportID || reports[i].ReportID == buffer[0])
break;
}
if (i == report_count)
{
irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
return;
}
switch (code)
{
case IOCTL_HID_GET_INPUT_REPORT:
report_len = reports[i].InputLength;
break;
case IOCTL_HID_SET_OUTPUT_REPORT:
case IOCTL_HID_WRITE_REPORT:
report_len = reports[i].OutputLength;
break;
case IOCTL_HID_GET_FEATURE:
case IOCTL_HID_SET_FEATURE:
report_len = reports[i].FeatureLength;
break;
}
if (buffer_len < report_len)
{
irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
return;
}
packet.reportId = buffer[0];
packet.reportBuffer = buffer;
packet.reportBufferLen = buffer_len;
if (!reports[i].ReportID)
{
packet.reportId = 0;
packet.reportBuffer++;
packet.reportBufferLen--;
}
switch (code)
{
case IOCTL_HID_GET_FEATURE:
case IOCTL_HID_GET_INPUT_REPORT:
call_minidriver( code, ext->u.pdo.parent_fdo, NULL, 0, &packet, sizeof(packet), &irp->IoStatus );
break;
case IOCTL_HID_SET_FEATURE:
case IOCTL_HID_SET_OUTPUT_REPORT:
case IOCTL_HID_WRITE_REPORT:
call_minidriver( code, ext->u.pdo.parent_fdo, NULL, sizeof(packet), &packet, 0, &irp->IoStatus );
if (code == IOCTL_HID_WRITE_REPORT && packet.reportId) irp->IoStatus.Information--;
break;
}
}
NTSTATUS WINAPI pdo_ioctl(DEVICE_OBJECT *device, IRP *irp)
{
struct hid_report_queue *queue = irp->Tail.Overlay.OriginalFileObject->FsContext;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
NTSTATUS status;
BOOL removed;
ULONG code;
KIRQL irql;
irp->IoStatus.Information = 0;
TRACE("device %p ioctl(%x)\n", device, irpsp->Parameters.DeviceIoControl.IoControlCode);
KeAcquireSpinLock(&ext->u.pdo.lock, &irql);
removed = ext->u.pdo.removed;
KeReleaseSpinLock(&ext->u.pdo.lock, irql);
if (removed)
{
irp->IoStatus.Status = STATUS_DELETE_PENDING;
IoCompleteRequest(irp, IO_NO_INCREMENT);
return STATUS_DELETE_PENDING;
}
switch ((code = irpsp->Parameters.DeviceIoControl.IoControlCode))
{
case IOCTL_HID_GET_POLL_FREQUENCY_MSEC:
TRACE("IOCTL_HID_GET_POLL_FREQUENCY_MSEC\n");
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))
{
irp->IoStatus.Status = STATUS_BUFFER_OVERFLOW;
irp->IoStatus.Information = 0;
break;
}
*(ULONG *)irp->AssociatedIrp.SystemBuffer = ext->u.pdo.poll_interval;
irp->IoStatus.Information = sizeof(ULONG);
irp->IoStatus.Status = STATUS_SUCCESS;
break;
case IOCTL_HID_SET_POLL_FREQUENCY_MSEC:
{
ULONG poll_interval;
TRACE("IOCTL_HID_SET_POLL_FREQUENCY_MSEC\n");
if (irpsp->Parameters.DeviceIoControl.InputBufferLength < sizeof(ULONG))
{
irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
break;
}
poll_interval = *(ULONG *)irp->AssociatedIrp.SystemBuffer;
if (poll_interval) ext->u.pdo.poll_interval = min(poll_interval, MAX_POLL_INTERVAL_MSEC);
irp->IoStatus.Status = STATUS_SUCCESS;
break;
}
case IOCTL_HID_GET_PRODUCT_STRING:
{
handle_minidriver_string( ext, irp, HID_STRING_ID_IPRODUCT );
break;
}
case IOCTL_HID_GET_SERIALNUMBER_STRING:
{
handle_minidriver_string( ext, irp, HID_STRING_ID_ISERIALNUMBER );
break;
}
case IOCTL_HID_GET_MANUFACTURER_STRING:
{
handle_minidriver_string( ext, irp, HID_STRING_ID_IMANUFACTURER );
break;
}
case IOCTL_HID_GET_COLLECTION_INFORMATION:
{
handle_IOCTL_HID_GET_COLLECTION_INFORMATION( irp, ext );
break;
}
case IOCTL_HID_GET_COLLECTION_DESCRIPTOR:
{
handle_IOCTL_HID_GET_COLLECTION_DESCRIPTOR( irp, ext );
break;
}
case IOCTL_SET_NUM_DEVICE_INPUT_BUFFERS:
{
irp->IoStatus.Information = 0;
if (irpsp->Parameters.DeviceIoControl.InputBufferLength != sizeof(ULONG))
irp->IoStatus.Status = STATUS_BUFFER_OVERFLOW;
else
irp->IoStatus.Status = hid_report_queue_resize( queue, *(ULONG *)irp->AssociatedIrp.SystemBuffer );
break;
}
case IOCTL_GET_NUM_DEVICE_INPUT_BUFFERS:
{
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))
{
irp->IoStatus.Information = 0;
irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
}
else
{
*(ULONG *)irp->AssociatedIrp.SystemBuffer = queue->length;
irp->IoStatus.Information = sizeof(ULONG);
irp->IoStatus.Status = STATUS_SUCCESS;
}
break;
}
case IOCTL_HID_GET_FEATURE:
case IOCTL_HID_SET_FEATURE:
case IOCTL_HID_GET_INPUT_REPORT:
case IOCTL_HID_SET_OUTPUT_REPORT:
hid_device_xfer_report( ext, code, irp );
break;
default:
{
ULONG code = irpsp->Parameters.DeviceIoControl.IoControlCode;
FIXME("Unsupported ioctl %x (device=%x access=%x func=%x method=%x)\n",
code, code >> 16, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3);
irp->IoStatus.Status = STATUS_NOT_SUPPORTED;
break;
}
}
status = irp->IoStatus.Status;
if (status != STATUS_PENDING) IoCompleteRequest( irp, IO_NO_INCREMENT );
return status;
}
NTSTATUS WINAPI pdo_read(DEVICE_OBJECT *device, IRP *irp)
{
struct hid_report_queue *queue = irp->Tail.Overlay.OriginalFileObject->FsContext;
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
HIDP_COLLECTION_DESC *desc = ext->u.pdo.device_desc.CollectionDesc;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation(irp);
struct hid_report *report;
NTSTATUS status;
BOOL removed;
KIRQL irql;
KeAcquireSpinLock(&ext->u.pdo.lock, &irql);
removed = ext->u.pdo.removed;
KeReleaseSpinLock(&ext->u.pdo.lock, irql);
if (removed)
{
irp->IoStatus.Status = STATUS_DELETE_PENDING;
IoCompleteRequest(irp, IO_NO_INCREMENT);
return STATUS_DELETE_PENDING;
}
if (irpsp->Parameters.Read.Length < desc->InputLength)
{
irp->IoStatus.Status = STATUS_INVALID_BUFFER_SIZE;
IoCompleteRequest( irp, IO_NO_INCREMENT );
return STATUS_INVALID_BUFFER_SIZE;
}
irp->IoStatus.Information = 0;
if ((report = hid_report_queue_pop( queue )))
{
memcpy( irp->AssociatedIrp.SystemBuffer, report->buffer, desc->InputLength );
irp->IoStatus.Information = report->length;
irp->IoStatus.Status = STATUS_SUCCESS;
hid_report_decref( report );
}
else
{
KeAcquireSpinLock(&ext->u.pdo.irp_queue_lock, &irql);
IoSetCancelRoutine(irp, read_cancel_routine);
if (irp->Cancel && !IoSetCancelRoutine(irp, NULL))
{
/* IRP was canceled before we set cancel routine */
InitializeListHead(&irp->Tail.Overlay.ListEntry);
KeReleaseSpinLock(&ext->u.pdo.irp_queue_lock, irql);
return STATUS_CANCELLED;
}
InsertTailList(&ext->u.pdo.irp_queue, &irp->Tail.Overlay.ListEntry);
irp->IoStatus.Status = STATUS_PENDING;
IoMarkIrpPending(irp);
KeReleaseSpinLock(&ext->u.pdo.irp_queue_lock, irql);
}
status = irp->IoStatus.Status;
if (status != STATUS_PENDING) IoCompleteRequest( irp, IO_NO_INCREMENT );
return status;
}
NTSTATUS WINAPI pdo_write(DEVICE_OBJECT *device, IRP *irp)
{
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
NTSTATUS status;
hid_device_xfer_report( ext, IOCTL_HID_WRITE_REPORT, irp );
status = irp->IoStatus.Status;
IoCompleteRequest( irp, IO_NO_INCREMENT );
return status;
}
NTSTATUS WINAPI pdo_create(DEVICE_OBJECT *device, IRP *irp)
{
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
struct hid_report_queue *queue;
KIRQL irql;
TRACE("Open handle on device %p\n", device);
if (!(queue = hid_report_queue_create())) irp->IoStatus.Status = STATUS_NO_MEMORY;
else
{
KeAcquireSpinLock( &ext->u.pdo.report_queues_lock, &irql );
list_add_tail( &ext->u.pdo.report_queues, &queue->entry );
KeReleaseSpinLock( &ext->u.pdo.report_queues_lock, irql );
irp->Tail.Overlay.OriginalFileObject->FsContext = queue;
irp->IoStatus.Status = STATUS_SUCCESS;
}
IoCompleteRequest( irp, IO_NO_INCREMENT );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI pdo_close(DEVICE_OBJECT *device, IRP *irp)
{
struct hid_report_queue *queue = irp->Tail.Overlay.OriginalFileObject->FsContext;
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
KIRQL irql;
TRACE("Close handle on device %p\n", device);
if (queue)
{
KeAcquireSpinLock( &ext->u.pdo.report_queues_lock, &irql );
list_remove( &queue->entry );
KeReleaseSpinLock( &ext->u.pdo.report_queues_lock, irql );
hid_report_queue_destroy( queue );
}
irp->IoStatus.Status = STATUS_SUCCESS;
IoCompleteRequest( irp, IO_NO_INCREMENT );
return STATUS_SUCCESS;
}
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