wine/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 "ntuser.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);
static void WINAPI read_cancel_routine(DEVICE_OBJECT *device, IRP *irp)
{
struct hid_queue *queue = irp->Tail.Overlay.OriginalFileObject->FsContext;
KIRQL irql;
TRACE("cancel %p IRP on device %p\n", irp, device);
IoReleaseCancelSpinLock(irp->CancelIrql);
KeAcquireSpinLock( &queue->lock, &irql );
RemoveEntryList(&irp->Tail.Overlay.ListEntry);
KeReleaseSpinLock( &queue->lock, 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, ULONG length )
{
struct hid_report *report;
if (!(report = malloc( offsetof( struct hid_report, buffer[length] ) )))
return NULL;
report->ref = 1;
report->length = length;
memcpy( report->buffer, packet->reportBuffer, packet->reportBufferLen );
memset( report->buffer + packet->reportBufferLen, 0, length - packet->reportBufferLen );
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_queue *hid_queue_create( void )
{
struct hid_queue *queue;
if (!(queue = calloc( 1, sizeof(struct hid_queue) ))) return NULL;
InitializeListHead( &queue->irp_queue );
KeInitializeSpinLock( &queue->lock );
list_init( &queue->entry );
queue->length = 32;
queue->read_idx = 0;
queue->write_idx = 0;
return queue;
}
static IRP *hid_queue_pop_irp( struct hid_queue *queue )
{
LIST_ENTRY *entry;
IRP *irp = NULL;
KIRQL irql;
KeAcquireSpinLock( &queue->lock, &irql );
while (!irp && (entry = RemoveHeadList( &queue->irp_queue )) != &queue->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( &queue->lock, irql );
return irp;
}
void hid_queue_remove_pending_irps( struct hid_queue *queue )
{
IRP *irp;
while ((irp = hid_queue_pop_irp( queue )))
{
irp->IoStatus.Status = STATUS_DELETE_PENDING;
IoCompleteRequest( irp, IO_NO_INCREMENT );
}
}
void hid_queue_destroy( struct hid_queue *queue )
{
hid_queue_remove_pending_irps( queue );
while (queue->length--) hid_report_decref( queue->reports[queue->length] );
list_remove( &queue->entry );
free( queue );
}
static NTSTATUS hid_queue_resize( struct hid_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 NTSTATUS hid_queue_push_irp( struct hid_queue *queue, IRP *irp )
{
KIRQL irql;
KeAcquireSpinLock( &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( &queue->lock, irql );
return STATUS_CANCELLED;
}
InsertTailList( &queue->irp_queue, &irp->Tail.Overlay.ListEntry );
irp->IoStatus.Status = STATUS_PENDING;
IoMarkIrpPending( irp );
KeReleaseSpinLock( &queue->lock, irql );
return STATUS_PENDING;
}
static void hid_queue_push_report( struct hid_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->read_idx = next + 1;
if (queue->read_idx >= queue->length) queue->read_idx = 0;
KeReleaseSpinLock( &queue->lock, irql );
hid_report_decref( prev );
queue->write_idx = next;
}
static struct hid_report *hid_queue_pop_report( struct hid_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;
const BOOL polled = ext->u.pdo.information.Polled;
ULONG size, report_len = polled ? packet->reportBufferLen : desc->InputLength;
struct hid_report *last_report, *report;
struct hid_queue *queue;
LIST_ENTRY completed, *entry;
RAWINPUT *rawinput;
KIRQL irql;
IRP *irp;
2022-01-03 16:23:38 +00:00
TRACE("device %p, packet %p\n", device, packet);
if (IsEqualGUID( ext->class_guid, &GUID_DEVINTERFACE_HID ))
{
size = offsetof( RAWINPUT, data.hid.bRawData[report_len] );
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 = report_len;
memcpy( rawinput->data.hid.bRawData, packet->reportBuffer, packet->reportBufferLen );
memset( rawinput->data.hid.bRawData + packet->reportBufferLen, 0, report_len - 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, report_len )))
{
ERR( "Failed to allocate hid_report!\n" );
return;
}
InitializeListHead( &completed );
KeAcquireSpinLock( &ext->u.pdo.queues_lock, &irql );
LIST_FOR_EACH_ENTRY( queue, &ext->u.pdo.queues, struct hid_queue, entry )
{
if (!polled) hid_queue_push_report( queue, last_report );
do
{
if (!(irp = hid_queue_pop_irp( queue ))) break;
if (!(report = hid_queue_pop_report( queue ))) hid_report_incref( (report = last_report) );
memcpy( irp->AssociatedIrp.SystemBuffer, report->buffer, report->length );
irp->IoStatus.Information = report->length;
irp->IoStatus.Status = STATUS_SUCCESS;
hid_report_decref( report );
InsertTailList( &completed, &irp->Tail.Overlay.ListEntry );
}
while (polled);
}
KeReleaseSpinLock( &ext->u.pdo.queues_lock, irql );
while ((entry = RemoveHeadList( &completed )) != &completed)
{
irp = CONTAINING_RECORD( entry, IRP, Tail.Overlay.ListEntry );
IoCompleteRequest( irp, IO_NO_INCREMENT );
}
hid_report_decref( last_report );
}
static HIDP_REPORT_IDS *find_report_with_type_and_id( BASE_DEVICE_EXTENSION *ext, BYTE type, BYTE id, BOOL any_id )
{
HIDP_REPORT_IDS *report, *reports = ext->u.pdo.device_desc.ReportIDs;
ULONG report_count = ext->u.pdo.device_desc.ReportIDsLength;
for (report = reports; report != reports + report_count; report++)
{
if (!any_id && report->ReportID && report->ReportID != id) continue;
if (type == HidP_Input && report->InputLength) return report;
if (type == HidP_Output && report->OutputLength) return report;
if (type == HidP_Feature && report->FeatureLength) return report;
}
return NULL;
}
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;
BOOL polled = ext->u.pdo.information.Polled;
HIDP_REPORT_IDS *report;
HID_XFER_PACKET *packet;
ULONG report_id = 0;
IO_STATUS_BLOCK io;
BYTE *buffer;
DWORD res;
packet = malloc( sizeof(*packet) + desc->InputLength );
buffer = (BYTE *)(packet + 1);
report = find_report_with_type_and_id( ext, HidP_Input, 0, TRUE );
if (!report) WARN("no input report found.\n");
else report_id = report->ReportID;
do
{
packet->reportId = buffer[0] = report_id;
packet->reportBuffer = buffer;
packet->reportBufferLen = desc->InputLength;
if (!report_id)
{
packet->reportBuffer++;
packet->reportBufferLen--;
}
call_minidriver( IOCTL_HID_READ_REPORT, ext->u.pdo.parent_fdo, NULL, 0,
packet->reportBuffer, packet->reportBufferLen, &io );
if (io.Status == STATUS_SUCCESS)
{
if (!report_id) io.Information++;
if (!(report = find_report_with_type_and_id( ext, HidP_Input, buffer[0], FALSE )))
WARN( "dropping unknown input id %u\n", buffer[0] );
else if (!polled && io.Information < report->InputLength)
WARN( "dropping short report, len %Iu expected %u\n", io.Information, report->InputLength );
else
{
packet->reportId = buffer[0];
packet->reportBuffer = buffer;
packet->reportBufferLen = io.Information;
hid_device_queue_input( device, packet );
}
}
res = WaitForSingleObject(ext->u.pdo.halt_event, polled ? ext->u.pdo.poll_interval : 0);
} while (res == WAIT_TIMEOUT);
TRACE( "device thread exiting, res %#lx\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);
}
struct device_strings
{
const WCHAR *id;
const WCHAR *product;
};
static const struct device_strings device_strings[] =
{
/* Microsoft controllers */
{ .id = L"VID_045E&PID_028E", .product = L"Controller (XBOX 360 For Windows)" },
{ .id = L"VID_045E&PID_028F", .product = L"Controller (XBOX 360 For Windows)" },
{ .id = L"VID_045E&PID_02D1", .product = L"Controller (Xbox One For Windows)" },
{ .id = L"VID_045E&PID_02DD", .product = L"Controller (Xbox One For Windows)" },
{ .id = L"VID_045E&PID_02E3", .product = L"Controller (Xbox One For Windows)" },
{ .id = L"VID_045E&PID_02EA", .product = L"Controller (Xbox One For Windows)" },
{ .id = L"VID_045E&PID_02FD", .product = L"Controller (Xbox One For Windows)" },
{ .id = L"VID_045E&PID_0719", .product = L"Controller (XBOX 360 For Windows)" },
{ .id = L"VID_045E&PID_0B00", .product = L"Controller (Xbox One For Windows)" },
{ .id = L"VID_045E&PID_0B05", .product = L"Controller (Xbox One For Windows)" },
{ .id = L"VID_045E&PID_0B12", .product = L"Controller (Xbox One For Windows)" },
{ .id = L"VID_045E&PID_0B13", .product = L"Controller (Xbox One For Windows)" },
/* Sony controllers */
{ .id = L"VID_054C&PID_05C4", .product = L"Wireless Controller" },
{ .id = L"VID_054C&PID_09CC", .product = L"Wireless Controller" },
{ .id = L"VID_054C&PID_0BA0", .product = L"Wireless Controller" },
{ .id = L"VID_054C&PID_0CE6", .product = L"Wireless Controller" },
};
static const WCHAR *find_device_string( const WCHAR *device_id, ULONG index )
{
const WCHAR *match_id = wcsrchr( device_id, '\\' ) + 1;
DWORD i;
if (index != HID_STRING_ID_IPRODUCT) return NULL;
for (i = 0; i < ARRAY_SIZE(device_strings); ++i)
if (!wcsnicmp( device_strings[i].id, match_id, 17 ))
return device_strings[i].product;
return NULL;
}
struct completion_params
{
HID_XFER_PACKET packet;
ULONG padding;
IRP *irp;
};
static NTSTATUS CALLBACK xfer_completion( DEVICE_OBJECT *device, IRP *irp, void *context )
{
struct completion_params *params = context;
IRP *orig_irp = params->irp;
TRACE( "device %p, irp %p, context %p\n", device, irp, context );
orig_irp->IoStatus = irp->IoStatus;
orig_irp->IoStatus.Information -= params->padding;
IoCompleteRequest( orig_irp, IO_NO_INCREMENT );
free( params );
return STATUS_SUCCESS;
}
static NTSTATUS hid_device_xfer_report( BASE_DEVICE_EXTENSION *ext, ULONG code, IRP *irp )
{
IO_STACK_LOCATION *stack = IoGetCurrentIrpStackLocation( irp );
ULONG offset, report_len = 0, buffer_len = 0;
struct completion_params *params;
HIDP_REPORT_IDS *report = NULL;
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) return STATUS_INVALID_USER_BUFFER;
switch (code)
{
case IOCTL_HID_GET_INPUT_REPORT:
report = find_report_with_type_and_id( ext, HidP_Input, buffer[0], FALSE );
if (report) report_len = report->InputLength;
break;
case IOCTL_HID_SET_OUTPUT_REPORT:
case IOCTL_HID_WRITE_REPORT:
report = find_report_with_type_and_id( ext, HidP_Output, buffer[0], FALSE );
if (report) report_len = report->OutputLength;
break;
case IOCTL_HID_GET_FEATURE:
case IOCTL_HID_SET_FEATURE:
report = find_report_with_type_and_id( ext, HidP_Feature, buffer[0], FALSE );
if (report) report_len = report->FeatureLength;
break;
}
if (!report || buffer_len < report_len) return STATUS_INVALID_PARAMETER;
offset = report->ReportID ? 0 : 1;
if (!(params = calloc( 1, sizeof(struct completion_params) ))) return STATUS_NO_MEMORY;
params->packet.reportId = report->ReportID;
params->packet.reportBuffer = buffer + offset;
params->irp = irp;
switch (code)
{
case IOCTL_HID_GET_FEATURE:
case IOCTL_HID_GET_INPUT_REPORT:
params->packet.reportBufferLen = buffer_len - offset;
irp = IoBuildDeviceIoControlRequest( code, ext->u.pdo.parent_fdo, NULL, 0, &params->packet,
sizeof(params->packet), TRUE, NULL, NULL );
break;
case IOCTL_HID_WRITE_REPORT:
params->padding = 1 - offset;
/* fallthrough */
case IOCTL_HID_SET_FEATURE:
case IOCTL_HID_SET_OUTPUT_REPORT:
params->packet.reportBufferLen = report_len - offset;
irp = IoBuildDeviceIoControlRequest( code, ext->u.pdo.parent_fdo, NULL, sizeof(params->packet),
&params->packet, 0, TRUE, NULL, NULL );
break;
}
if (!irp)
{
free( params );
return STATUS_NO_MEMORY;
}
IoMarkIrpPending( params->irp );
IoSetCompletionRoutine( irp, xfer_completion, params, TRUE, TRUE, TRUE );
IoCallDriver( ext->u.pdo.parent_fdo, irp );
return STATUS_PENDING;
}
NTSTATUS WINAPI pdo_ioctl(DEVICE_OBJECT *device, IRP *irp)
{
struct hid_queue *queue = irp->Tail.Overlay.OriginalFileObject->FsContext;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
NTSTATUS status = irp->IoStatus.Status;
ULONG code, index;
const WCHAR *str;
BOOL removed;
KIRQL irql;
irp->IoStatus.Information = 0;
TRACE( "device %p code %#lx\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:
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))
status = STATUS_BUFFER_OVERFLOW;
else
{
*(ULONG *)irp->AssociatedIrp.SystemBuffer = ext->u.pdo.poll_interval;
irp->IoStatus.Information = sizeof(ULONG);
status = STATUS_SUCCESS;
}
break;
case IOCTL_HID_SET_POLL_FREQUENCY_MSEC:
{
ULONG poll_interval;
if (irpsp->Parameters.DeviceIoControl.InputBufferLength < sizeof(ULONG))
status = STATUS_BUFFER_TOO_SMALL;
else
{
poll_interval = *(ULONG *)irp->AssociatedIrp.SystemBuffer;
if (poll_interval) ext->u.pdo.poll_interval = min( poll_interval, MAX_POLL_INTERVAL_MSEC );
status = STATUS_SUCCESS;
}
break;
}
case IOCTL_HID_GET_PRODUCT_STRING:
case IOCTL_HID_GET_SERIALNUMBER_STRING:
case IOCTL_HID_GET_MANUFACTURER_STRING:
{
WCHAR *output_buf = MmGetSystemAddressForMdlSafe( irp->MdlAddress, NormalPagePriority );
ULONG output_len = irpsp->Parameters.DeviceIoControl.OutputBufferLength;
if (code == IOCTL_HID_GET_PRODUCT_STRING) index = HID_STRING_ID_IPRODUCT;
if (code == IOCTL_HID_GET_SERIALNUMBER_STRING) index = HID_STRING_ID_ISERIALNUMBER;
if (code == IOCTL_HID_GET_MANUFACTURER_STRING) index = HID_STRING_ID_IMANUFACTURER;
if ((str = find_device_string( ext->device_id, index )))
{
irp->IoStatus.Information = (wcslen( str ) + 1) * sizeof(WCHAR);
if (irp->IoStatus.Information > output_len)
status = STATUS_BUFFER_TOO_SMALL;
else
{
memcpy( output_buf, str, irp->IoStatus.Information );
status = STATUS_SUCCESS;
}
break;
}
call_minidriver( IOCTL_HID_GET_STRING, ext->u.pdo.parent_fdo, ULongToPtr( index ),
sizeof(index), output_buf, output_len, &irp->IoStatus );
status = irp->IoStatus.Status;
break;
}
case IOCTL_HID_GET_COLLECTION_INFORMATION:
{
irp->IoStatus.Information = sizeof(HID_COLLECTION_INFORMATION);
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(HID_COLLECTION_INFORMATION))
status = STATUS_BUFFER_OVERFLOW;
else
{
memcpy( irp->AssociatedIrp.SystemBuffer, &ext->u.pdo.information,
sizeof(HID_COLLECTION_INFORMATION) );
status = STATUS_SUCCESS;
}
break;
}
case IOCTL_HID_GET_COLLECTION_DESCRIPTOR:
{
HIDP_COLLECTION_DESC *desc = ext->u.pdo.device_desc.CollectionDesc;
irp->IoStatus.Information = desc->PreparsedDataLength;
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < desc->PreparsedDataLength)
status = STATUS_INVALID_BUFFER_SIZE;
else
{
memcpy( irp->UserBuffer, desc->PreparsedData, desc->PreparsedDataLength );
status = STATUS_SUCCESS;
}
break;
}
case IOCTL_SET_NUM_DEVICE_INPUT_BUFFERS:
{
if (irpsp->Parameters.DeviceIoControl.InputBufferLength != sizeof(ULONG))
status = STATUS_BUFFER_OVERFLOW;
else
status = hid_queue_resize( queue, *(ULONG *)irp->AssociatedIrp.SystemBuffer );
break;
}
case IOCTL_GET_NUM_DEVICE_INPUT_BUFFERS:
{
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))
status = STATUS_BUFFER_TOO_SMALL;
else
{
*(ULONG *)irp->AssociatedIrp.SystemBuffer = queue->length;
irp->IoStatus.Information = sizeof(ULONG);
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:
status = hid_device_xfer_report( ext, code, irp );
break;
case IOCTL_HID_GET_WINE_RAWINPUT_HANDLE:
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))
status = STATUS_BUFFER_OVERFLOW;
else
{
*(ULONG *)irp->AssociatedIrp.SystemBuffer = ext->u.pdo.rawinput_handle;
irp->IoStatus.Information = sizeof(ULONG);
status = STATUS_SUCCESS;
}
break;
default:
{
ULONG code = irpsp->Parameters.DeviceIoControl.IoControlCode;
FIXME( "Unsupported ioctl %#lx (device=%lx access=%lx func=%lx method=%lx)\n", code,
code >> 16, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3 );
status = STATUS_NOT_SUPPORTED;
break;
}
}
if (status != STATUS_PENDING)
{
irp->IoStatus.Status = status;
IoCompleteRequest( irp, IO_NO_INCREMENT );
}
return status;
}
NTSTATUS WINAPI pdo_read(DEVICE_OBJECT *device, IRP *irp)
{
struct hid_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;
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_queue_pop_report( queue )))
{
memcpy( irp->AssociatedIrp.SystemBuffer, report->buffer, report->length );
irp->IoStatus.Information = report->length;
irp->IoStatus.Status = STATUS_SUCCESS;
hid_report_decref( report );
IoCompleteRequest( irp, IO_NO_INCREMENT );
return STATUS_SUCCESS;
}
return hid_queue_push_irp( queue, irp );
}
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 );
if (status != STATUS_PENDING)
{
irp->IoStatus.Status = 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_queue *queue;
BOOL removed;
KIRQL irql;
TRACE("Open handle on device %p\n", device);
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 (!(queue = hid_queue_create())) irp->IoStatus.Status = STATUS_NO_MEMORY;
else
{
KeAcquireSpinLock( &ext->u.pdo.queues_lock, &irql );
list_add_tail( &ext->u.pdo.queues, &queue->entry );
KeReleaseSpinLock( &ext->u.pdo.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_queue *queue = irp->Tail.Overlay.OriginalFileObject->FsContext;
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
BOOL removed;
KIRQL irql;
TRACE("Close handle on device %p\n", device);
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 (queue)
{
KeAcquireSpinLock( &ext->u.pdo.queues_lock, &irql );
list_remove( &queue->entry );
KeReleaseSpinLock( &ext->u.pdo.queues_lock, irql );
hid_queue_destroy( queue );
}
irp->IoStatus.Status = STATUS_SUCCESS;
IoCompleteRequest( irp, IO_NO_INCREMENT );
return STATUS_SUCCESS;
}