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/*
* WINE Platform native bus driver
*
* Copyright 2016 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 "config.h"
#include <stdarg.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winternl.h"
#include "winreg.h"
#include "setupapi.h"
#include "winioctl.h"
#include "ddk/wdm.h"
#include "ddk/hidport.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "wine/list.h"
#include "bus.h"
WINE_DEFAULT_DEBUG_CHANNEL(plugplay);
WINE_DECLARE_DEBUG_CHANNEL(hid_report);
#define VID_MICROSOFT 0x045e
static const WORD PID_XBOX_CONTROLLERS[] = {
0x0202, /* Xbox Controller */
0x0285, /* Xbox Controller S */
0x0289, /* Xbox Controller S */
0x028e, /* Xbox360 Controller */
0x028f, /* Xbox360 Wireless Controller */
0x02d1, /* Xbox One Controller */
0x02dd, /* Xbox One Controller (Covert Forces/Firmware 2015) */
0x02e3, /* Xbox One Elite Controller */
0x02e6, /* Wireless XBox Controller Dongle */
0x02ea, /* Xbox One S Controller */
0x0719, /* Xbox 360 Wireless Adapter */
};
struct pnp_device
{
struct list entry;
DEVICE_OBJECT *device;
};
struct device_extension
{
struct pnp_device *pnp_device;
WORD vid, pid;
DWORD uid, version, index;
BOOL is_gamepad;
WCHAR *serial;
const WCHAR *busid; /* Expected to be a static constant */
const platform_vtbl *vtbl;
BYTE *last_report;
DWORD last_report_size;
BOOL last_report_read;
DWORD buffer_size;
LIST_ENTRY irp_queue;
CRITICAL_SECTION report_cs;
BYTE platform_private[1];
};
static CRITICAL_SECTION device_list_cs;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &device_list_cs,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": device_list_cs") }
};
static CRITICAL_SECTION device_list_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
static struct list pnp_devset = LIST_INIT(pnp_devset);
static const WCHAR zero_serialW[]= {'0','0','0','0',0};
static const WCHAR imW[] = {'I','M',0};
static const WCHAR igW[] = {'I','G',0};
static inline WCHAR *strdupW(const WCHAR *src)
{
WCHAR *dst;
if (!src) return NULL;
dst = HeapAlloc(GetProcessHeap(), 0, (strlenW(src) + 1)*sizeof(WCHAR));
if (dst) strcpyW(dst, src);
return dst;
}
void *get_platform_private(DEVICE_OBJECT *device)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
return ext->platform_private;
}
static DWORD get_vidpid_index(WORD vid, WORD pid)
{
struct pnp_device *ptr;
DWORD index = 1;
LIST_FOR_EACH_ENTRY(ptr, &pnp_devset, struct pnp_device, entry)
{
struct device_extension *ext = (struct device_extension *)ptr->device->DeviceExtension;
if (ext->vid == vid && ext->pid == pid)
index = max(ext->index + 1, index);
}
return index;
}
static WCHAR *get_instance_id(DEVICE_OBJECT *device)
{
static const WCHAR formatW[] = {'%','s','\\','V','i','d','_','%','0','4','x','&', 'P','i','d','_','%','0','4','x','&',
'%','s','_','%','i','\\','%','i','&','%','s','&','%','x',0};
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
const WCHAR *serial = ext->serial ? ext->serial : zero_serialW;
DWORD len = strlenW(ext->busid) + strlenW(serial) + 64;
WCHAR *dst;
if ((dst = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
sprintfW(dst, formatW, ext->busid, ext->vid, ext->pid, ext->is_gamepad ? igW : imW,
ext->index, ext->version, serial, ext->uid);
return dst;
}
static WCHAR *get_device_id(DEVICE_OBJECT *device)
{
static const WCHAR formatW[] = {'%','s','\\','V','i','d','_','%','0','4','x','&','P','i','d','_','%','0','4','x',0};
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
DWORD len = strlenW(ext->busid) + 19;
WCHAR *dst;
if ((dst = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
sprintfW(dst, formatW, ext->busid, ext->vid, ext->pid);
return dst;
}
static WCHAR *get_compatible_ids(DEVICE_OBJECT *device)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
WCHAR *iid, *did, *dst, *ptr;
DWORD len;
if (!(iid = get_instance_id(device)))
return NULL;
if (!(did = get_device_id(device)))
{
HeapFree(GetProcessHeap(), 0, iid);
return NULL;
}
len = strlenW(iid) + strlenW(did) + strlenW(ext->busid) + 4;
if ((dst = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
{
ptr = dst;
strcpyW(ptr, iid);
ptr += strlenW(iid) + 1;
strcpyW(ptr, did);
ptr += strlenW(did) + 1;
strcpyW(ptr, ext->busid);
ptr += strlenW(ext->busid) + 1;
*ptr = 0;
}
HeapFree(GetProcessHeap(), 0, iid);
HeapFree(GetProcessHeap(), 0, did);
return dst;
}
DEVICE_OBJECT *bus_create_hid_device(DRIVER_OBJECT *driver, const WCHAR *busidW, WORD vid, WORD pid,
DWORD version, DWORD uid, const WCHAR *serialW, BOOL is_gamepad,
const GUID *class, const platform_vtbl *vtbl, DWORD platform_data_size)
{
static const WCHAR device_name_fmtW[] = {'\\','D','e','v','i','c','e','\\','%','s','#','%','p',0};
struct device_extension *ext;
struct pnp_device *pnp_dev;
DEVICE_OBJECT *device;
UNICODE_STRING nameW;
WCHAR dev_name[256];
HDEVINFO devinfo;
NTSTATUS status;
DWORD length;
TRACE("(%p, %s, %04x, %04x, %u, %u, %s, %u, %s, %p, %u)\n", driver, debugstr_w(busidW), vid, pid,
version, uid, debugstr_w(serialW), is_gamepad, debugstr_guid(class), vtbl, platform_data_size);
if (!(pnp_dev = HeapAlloc(GetProcessHeap(), 0, sizeof(*pnp_dev))))
return NULL;
sprintfW(dev_name, device_name_fmtW, busidW, pnp_dev);
RtlInitUnicodeString(&nameW, dev_name);
length = FIELD_OFFSET(struct device_extension, platform_private[platform_data_size]);
status = IoCreateDevice(driver, length, &nameW, 0, 0, FALSE, &device);
if (status)
{
FIXME("failed to create device error %x\n", status);
HeapFree(GetProcessHeap(), 0, pnp_dev);
return NULL;
}
EnterCriticalSection(&device_list_cs);
/* fill out device_extension struct */
ext = (struct device_extension *)device->DeviceExtension;
ext->pnp_device = pnp_dev;
ext->vid = vid;
ext->pid = pid;
ext->uid = uid;
ext->version = version;
ext->index = get_vidpid_index(vid, pid);
ext->is_gamepad = is_gamepad;
ext->serial = strdupW(serialW);
ext->busid = busidW;
ext->vtbl = vtbl;
ext->last_report = NULL;
ext->last_report_size = 0;
ext->last_report_read = TRUE;
ext->buffer_size = 0;
memset(ext->platform_private, 0, platform_data_size);
InitializeListHead(&ext->irp_queue);
InitializeCriticalSection(&ext->report_cs);
ext->report_cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": report_cs");
/* add to list of pnp devices */
pnp_dev->device = device;
list_add_tail(&pnp_devset, &pnp_dev->entry);
LeaveCriticalSection(&device_list_cs);
devinfo = SetupDiGetClassDevsW(class, NULL, NULL, DIGCF_DEVICEINTERFACE);
if (devinfo)
{
SP_DEVINFO_DATA data;
WCHAR *instance;
data.cbSize = sizeof(data);
if (!(instance = get_instance_id(device)))
ERR("failed to generate instance id\n");
else if (!SetupDiCreateDeviceInfoW(devinfo, instance, class, NULL, NULL, DICD_INHERIT_CLASSDRVS, &data))
ERR("failed to create device info: %x\n", GetLastError());
else if (!SetupDiRegisterDeviceInfo(devinfo, &data, 0, NULL, NULL, NULL))
ERR("failed to register device info: %x\n", GetLastError());
HeapFree(GetProcessHeap(), 0, instance);
SetupDiDestroyDeviceInfoList(devinfo);
}
else
ERR("failed to get ClassDevs: %x\n", GetLastError());
return device;
}
DEVICE_OBJECT *bus_find_hid_device(const platform_vtbl *vtbl, void *platform_dev)
{
struct pnp_device *dev;
DEVICE_OBJECT *ret = NULL;
TRACE("(%p, %p)\n", vtbl, platform_dev);
EnterCriticalSection(&device_list_cs);
LIST_FOR_EACH_ENTRY(dev, &pnp_devset, struct pnp_device, entry)
{
struct device_extension *ext = (struct device_extension *)dev->device->DeviceExtension;
if (ext->vtbl != vtbl) continue;
if (ext->vtbl->compare_platform_device(dev->device, platform_dev) == 0)
{
ret = dev->device;
break;
}
}
LeaveCriticalSection(&device_list_cs);
TRACE("returning %p\n", ret);
return ret;
}
DEVICE_OBJECT* bus_enumerate_hid_devices(const platform_vtbl *vtbl, enum_func function, void* context)
{
struct pnp_device *dev;
DEVICE_OBJECT *ret = NULL;
TRACE("(%p)\n", vtbl);
EnterCriticalSection(&device_list_cs);
LIST_FOR_EACH_ENTRY(dev, &pnp_devset, struct pnp_device, entry)
{
struct device_extension *ext = (struct device_extension *)dev->device->DeviceExtension;
if (ext->vtbl != vtbl) continue;
if (function(dev->device, context) == 0)
{
ret = dev->device;
break;
}
}
LeaveCriticalSection(&device_list_cs);
return ret;
}
void bus_remove_hid_device(DEVICE_OBJECT *device)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
struct pnp_device *pnp_device = ext->pnp_device;
LIST_ENTRY *entry;
IRP *irp;
TRACE("(%p)\n", device);
EnterCriticalSection(&device_list_cs);
list_remove(&pnp_device->entry);
LeaveCriticalSection(&device_list_cs);
/* Cancel pending IRPs */
EnterCriticalSection(&ext->report_cs);
while ((entry = RemoveHeadList(&ext->irp_queue)) != &ext->irp_queue)
{
irp = CONTAINING_RECORD(entry, IRP, Tail.Overlay.s.ListEntry);
irp->IoStatus.u.Status = STATUS_CANCELLED;
irp->IoStatus.Information = 0;
IoCompleteRequest(irp, IO_NO_INCREMENT);
}
LeaveCriticalSection(&ext->report_cs);
ext->report_cs.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&ext->report_cs);
HeapFree(GetProcessHeap(), 0, ext->serial);
HeapFree(GetProcessHeap(), 0, ext->last_report);
IoDeleteDevice(device);
/* pnp_device must be released after the device is gone */
HeapFree(GetProcessHeap(), 0, pnp_device);
}
static NTSTATUS handle_IRP_MN_QUERY_ID(DEVICE_OBJECT *device, IRP *irp)
{
NTSTATUS status = irp->IoStatus.u.Status;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
BUS_QUERY_ID_TYPE type = irpsp->Parameters.QueryId.IdType;
TRACE("(%p, %p)\n", device, irp);
switch (type)
{
case BusQueryHardwareIDs:
TRACE("BusQueryHardwareIDs\n");
irp->IoStatus.Information = (ULONG_PTR)get_compatible_ids(device);
break;
case BusQueryCompatibleIDs:
TRACE("BusQueryCompatibleIDs\n");
irp->IoStatus.Information = (ULONG_PTR)get_compatible_ids(device);
break;
case BusQueryDeviceID:
TRACE("BusQueryDeviceID\n");
irp->IoStatus.Information = (ULONG_PTR)get_device_id(device);
break;
case BusQueryInstanceID:
TRACE("BusQueryInstanceID\n");
irp->IoStatus.Information = (ULONG_PTR)get_instance_id(device);
break;
default:
FIXME("Unhandled type %08x\n", type);
return status;
}
status = irp->IoStatus.Information ? STATUS_SUCCESS : STATUS_NO_MEMORY;
return status;
}
NTSTATUS WINAPI common_pnp_dispatch(DEVICE_OBJECT *device, IRP *irp)
{
NTSTATUS status = irp->IoStatus.u.Status;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation(irp);
switch (irpsp->MinorFunction)
{
case IRP_MN_QUERY_DEVICE_RELATIONS:
TRACE("IRP_MN_QUERY_DEVICE_RELATIONS\n");
break;
case IRP_MN_QUERY_ID:
TRACE("IRP_MN_QUERY_ID\n");
status = handle_IRP_MN_QUERY_ID(device, irp);
irp->IoStatus.u.Status = status;
break;
case IRP_MN_QUERY_CAPABILITIES:
TRACE("IRP_MN_QUERY_CAPABILITIES\n");
break;
default:
FIXME("Unhandled function %08x\n", irpsp->MinorFunction);
break;
}
IoCompleteRequest(irp, IO_NO_INCREMENT);
return status;
}
static NTSTATUS deliver_last_report(struct device_extension *ext, DWORD buffer_length, BYTE* buffer, ULONG_PTR *out_length)
{
if (buffer_length < ext->last_report_size)
{
*out_length = 0;
return STATUS_BUFFER_TOO_SMALL;
}
else
{
if (ext->last_report)
memcpy(buffer, ext->last_report, ext->last_report_size);
*out_length = ext->last_report_size;
return STATUS_SUCCESS;
}
}
NTSTATUS WINAPI hid_internal_dispatch(DEVICE_OBJECT *device, IRP *irp)
{
NTSTATUS status = irp->IoStatus.u.Status;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation(irp);
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
TRACE("(%p, %p)\n", device, irp);
switch (irpsp->Parameters.DeviceIoControl.IoControlCode)
{
case IOCTL_HID_GET_DEVICE_ATTRIBUTES:
{
HID_DEVICE_ATTRIBUTES *attr = (HID_DEVICE_ATTRIBUTES *)irp->UserBuffer;
TRACE("IOCTL_HID_GET_DEVICE_ATTRIBUTES\n");
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(*attr))
{
irp->IoStatus.u.Status = status = STATUS_BUFFER_TOO_SMALL;
break;
}
memset(attr, 0, sizeof(*attr));
attr->Size = sizeof(*attr);
attr->VendorID = ext->vid;
attr->ProductID = ext->pid;
attr->VersionNumber = ext->version;
irp->IoStatus.u.Status = status = STATUS_SUCCESS;
irp->IoStatus.Information = sizeof(*attr);
break;
}
case IOCTL_HID_GET_DEVICE_DESCRIPTOR:
{
HID_DESCRIPTOR *descriptor = (HID_DESCRIPTOR *)irp->UserBuffer;
DWORD length;
TRACE("IOCTL_HID_GET_DEVICE_DESCRIPTOR\n");
if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(*descriptor))
{
irp->IoStatus.u.Status = status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = ext->vtbl->get_reportdescriptor(device, NULL, 0, &length);
if (status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
{
WARN("Failed to get platform report descriptor length\n");
irp->IoStatus.u.Status = status;
break;
}
memset(descriptor, 0, sizeof(*descriptor));
descriptor->bLength = sizeof(*descriptor);
descriptor->bDescriptorType = HID_HID_DESCRIPTOR_TYPE;
descriptor->bcdHID = HID_REVISION;
descriptor->bCountry = 0;
descriptor->bNumDescriptors = 1;
descriptor->DescriptorList[0].bReportType = HID_REPORT_DESCRIPTOR_TYPE;
descriptor->DescriptorList[0].wReportLength = length;
irp->IoStatus.u.Status = status = STATUS_SUCCESS;
irp->IoStatus.Information = sizeof(*descriptor);
break;
}
case IOCTL_HID_GET_REPORT_DESCRIPTOR:
{
DWORD length = irpsp->Parameters.DeviceIoControl.OutputBufferLength;
TRACE("IOCTL_HID_GET_REPORT_DESCRIPTOR\n");
irp->IoStatus.u.Status = status = ext->vtbl->get_reportdescriptor(device, irp->UserBuffer, length, &length);
irp->IoStatus.Information = length;
break;
}
case IOCTL_HID_GET_STRING:
{
DWORD length = irpsp->Parameters.DeviceIoControl.OutputBufferLength / sizeof(WCHAR);
DWORD index = (ULONG_PTR)irpsp->Parameters.DeviceIoControl.Type3InputBuffer;
TRACE("IOCTL_HID_GET_STRING[%08x]\n", index);
irp->IoStatus.u.Status = status = ext->vtbl->get_string(device, index, (WCHAR *)irp->UserBuffer, length);
if (status == STATUS_SUCCESS)
irp->IoStatus.Information = (strlenW((WCHAR *)irp->UserBuffer) + 1) * sizeof(WCHAR);
break;
}
case IOCTL_HID_GET_INPUT_REPORT:
{
HID_XFER_PACKET *packet = (HID_XFER_PACKET*)(irp->UserBuffer);
TRACE_(hid_report)("IOCTL_HID_GET_INPUT_REPORT\n");
EnterCriticalSection(&ext->report_cs);
status = ext->vtbl->begin_report_processing(device);
if (status != STATUS_SUCCESS)
{
irp->IoStatus.u.Status = status;
LeaveCriticalSection(&ext->report_cs);
break;
}
irp->IoStatus.u.Status = status = deliver_last_report(ext,
packet->reportBufferLen, packet->reportBuffer,
&irp->IoStatus.Information);
if (status == STATUS_SUCCESS)
packet->reportBufferLen = irp->IoStatus.Information;
LeaveCriticalSection(&ext->report_cs);
break;
}
case IOCTL_HID_READ_REPORT:
{
TRACE_(hid_report)("IOCTL_HID_READ_REPORT\n");
EnterCriticalSection(&ext->report_cs);
status = ext->vtbl->begin_report_processing(device);
if (status != STATUS_SUCCESS)
{
irp->IoStatus.u.Status = status;
LeaveCriticalSection(&ext->report_cs);
break;
}
if (!ext->last_report_read)
{
irp->IoStatus.u.Status = status = deliver_last_report(ext,
irpsp->Parameters.DeviceIoControl.OutputBufferLength,
irp->UserBuffer, &irp->IoStatus.Information);
ext->last_report_read = TRUE;
}
else
{
InsertTailList(&ext->irp_queue, &irp->Tail.Overlay.s.ListEntry);
status = STATUS_PENDING;
}
LeaveCriticalSection(&ext->report_cs);
break;
}
case IOCTL_HID_SET_OUTPUT_REPORT:
case IOCTL_HID_WRITE_REPORT:
{
HID_XFER_PACKET *packet = (HID_XFER_PACKET*)(irp->UserBuffer);
TRACE_(hid_report)("IOCTL_HID_WRITE_REPORT / IOCTL_HID_SET_OUTPUT_REPORT\n");
irp->IoStatus.u.Status = status = ext->vtbl->set_output_report(
device, packet->reportId, packet->reportBuffer,
packet->reportBufferLen, &irp->IoStatus.Information);
break;
}
case IOCTL_HID_GET_FEATURE:
{
HID_XFER_PACKET *packet = (HID_XFER_PACKET*)(irp->UserBuffer);
TRACE_(hid_report)("IOCTL_HID_GET_FEATURE\n");
irp->IoStatus.u.Status = status = ext->vtbl->get_feature_report(
device, packet->reportId, packet->reportBuffer,
packet->reportBufferLen, &irp->IoStatus.Information);
packet->reportBufferLen = irp->IoStatus.Information;
break;
}
case IOCTL_HID_SET_FEATURE:
{
HID_XFER_PACKET *packet = (HID_XFER_PACKET*)(irp->UserBuffer);
TRACE_(hid_report)("IOCTL_HID_SET_FEATURE\n");
irp->IoStatus.u.Status = status = ext->vtbl->set_feature_report(
device, packet->reportId, packet->reportBuffer,
packet->reportBufferLen, &irp->IoStatus.Information);
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);
break;
}
}
if (status != STATUS_PENDING)
IoCompleteRequest(irp, IO_NO_INCREMENT);
return status;
}
void process_hid_report(DEVICE_OBJECT *device, BYTE *report, DWORD length)
{
struct device_extension *ext = (struct device_extension*)device->DeviceExtension;
IRP *irp;
LIST_ENTRY *entry;
if (!length || !report)
return;
EnterCriticalSection(&ext->report_cs);
if (length > ext->buffer_size)
{
HeapFree(GetProcessHeap(), 0, ext->last_report);
ext->last_report = HeapAlloc(GetProcessHeap(), 0, length);
if (!ext->last_report)
{
ERR_(hid_report)("Failed to alloc last report\n");
ext->buffer_size = 0;
ext->last_report_size = 0;
ext->last_report_read = TRUE;
LeaveCriticalSection(&ext->report_cs);
return;
}
else
ext->buffer_size = length;
}
if (!ext->last_report_read)
ERR_(hid_report)("Device reports coming in too fast, last report not read yet!\n");
memcpy(ext->last_report, report, length);
ext->last_report_size = length;
ext->last_report_read = FALSE;
while ((entry = RemoveHeadList(&ext->irp_queue)) != &ext->irp_queue)
{
IO_STACK_LOCATION *irpsp;
TRACE_(hid_report)("Processing Request\n");
irp = CONTAINING_RECORD(entry, IRP, Tail.Overlay.s.ListEntry);
irpsp = IoGetCurrentIrpStackLocation(irp);
irp->IoStatus.u.Status = deliver_last_report(ext,
irpsp->Parameters.DeviceIoControl.OutputBufferLength,
irp->UserBuffer, &irp->IoStatus.Information);
ext->last_report_read = TRUE;
IoCompleteRequest(irp, IO_NO_INCREMENT);
}
LeaveCriticalSection(&ext->report_cs);
}
DWORD check_bus_option(UNICODE_STRING *registry_path, const UNICODE_STRING *option, DWORD default_value)
{
OBJECT_ATTRIBUTES attr;
HANDLE key;
DWORD output = default_value;
InitializeObjectAttributes(&attr, registry_path, OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE, NULL, NULL);
if (NtOpenKey(&key, KEY_ALL_ACCESS, &attr) == STATUS_SUCCESS)
{
DWORD size;
char buffer[FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[sizeof(DWORD)])];
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION*)buffer;
if (NtQueryValueKey(key, option, KeyValuePartialInformation, info, sizeof(buffer), &size) == STATUS_SUCCESS)
{
if (info->Type == REG_DWORD)
output = *(DWORD*)info->Data;
}
NtClose(key);
}
return output;
}
BOOL is_xbox_gamepad(WORD vid, WORD pid)
{
int i;
if (vid != VID_MICROSOFT)
return FALSE;
for (i = 0; i < sizeof(PID_XBOX_CONTROLLERS)/sizeof(*PID_XBOX_CONTROLLERS); i++)
if (pid == PID_XBOX_CONTROLLERS[i]) return TRUE;
return FALSE;
}
NTSTATUS WINAPI DriverEntry( DRIVER_OBJECT *driver, UNICODE_STRING *path )
{
static const WCHAR udevW[] = {'\\','D','r','i','v','e','r','\\','U','D','E','V',0};
static UNICODE_STRING udev = {sizeof(udevW) - sizeof(WCHAR), sizeof(udevW), (WCHAR *)udevW};
static const WCHAR iohidW[] = {'\\','D','r','i','v','e','r','\\','I','O','H','I','D',0};
static UNICODE_STRING iohid = {sizeof(iohidW) - sizeof(WCHAR), sizeof(iohidW), (WCHAR *)iohidW};
static const WCHAR sdlW[] = {'\\','D','r','i','v','e','r','\\','S','D','L','J','O','Y',0};
static UNICODE_STRING sdl = {sizeof(sdlW) - sizeof(WCHAR), sizeof(sdlW), (WCHAR *)sdlW};
static const WCHAR SDL_enabledW[] = {'E','n','a','b','l','e',' ','S','D','L',0};
static const UNICODE_STRING SDL_enabled = {sizeof(SDL_enabledW) - sizeof(WCHAR), sizeof(SDL_enabledW), (WCHAR*)SDL_enabledW};
TRACE( "(%p, %s)\n", driver, debugstr_w(path->Buffer) );
if (check_bus_option(path, &SDL_enabled, 1))
{
if (IoCreateDriver(&sdl, sdl_driver_init) == STATUS_SUCCESS)
return STATUS_SUCCESS;
}
IoCreateDriver(&udev, udev_driver_init);
IoCreateDriver(&iohid, iohid_driver_init);
return STATUS_SUCCESS;
}
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