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wine/dlls/winebus.sys/main.c

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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 <stdarg.h>
#include <assert.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winternl.h"
#include "winioctl.h"
#include "hidusage.h"
#include "ddk/wdm.h"
#include "ddk/hidport.h"
#include "ddk/hidtypes.h"
#include "ddk/hidpddi.h"
#include "wine/asm.h"
#include "wine/debug.h"
#include "wine/list.h"
#include "wine/unixlib.h"
#include "unixlib.h"
WINE_DEFAULT_DEBUG_CHANNEL(hid);
static DRIVER_OBJECT *driver_obj;
static DEVICE_OBJECT *mouse_obj;
static DEVICE_OBJECT *keyboard_obj;
/* The root-enumerated device stack. */
static DEVICE_OBJECT *bus_pdo;
static DEVICE_OBJECT *bus_fdo;
static HANDLE driver_key;
struct hid_report
{
struct list entry;
ULONG length;
BYTE buffer[1];
};
enum device_state
{
DEVICE_STATE_STOPPED,
DEVICE_STATE_STARTED,
DEVICE_STATE_REMOVED,
};
struct device_extension
{
struct list entry;
DEVICE_OBJECT *device;
CRITICAL_SECTION cs;
enum device_state state;
struct device_desc desc;
DWORD index;
BYTE *report_desc;
UINT report_desc_length;
HIDP_DEVICE_DESC collection_desc;
struct hid_report *last_reports[256];
struct list reports;
IRP *pending_read;
UINT64 unix_device;
};
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 device_list = LIST_INIT(device_list);
static NTSTATUS winebus_call(unsigned int code, void *args)
{
return WINE_UNIX_CALL(code, args);
}
static void unix_device_remove(DEVICE_OBJECT *device)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
struct device_remove_params params = {.device = ext->unix_device};
winebus_call(device_remove, &params);
}
static NTSTATUS unix_device_start(DEVICE_OBJECT *device)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
struct device_start_params params = {.device = ext->unix_device};
return winebus_call(device_start, &params);
}
static NTSTATUS unix_device_get_report_descriptor(DEVICE_OBJECT *device, BYTE *buffer, UINT length, UINT *out_length)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
struct device_descriptor_params params =
{
.device = ext->unix_device,
.buffer = buffer,
.length = length,
.out_length = out_length
};
return winebus_call(device_get_report_descriptor, &params);
}
static void unix_device_set_output_report(DEVICE_OBJECT *device, HID_XFER_PACKET *packet, IO_STATUS_BLOCK *io)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
struct device_report_params params =
{
.device = ext->unix_device,
.packet = packet,
.io = io,
};
winebus_call(device_set_output_report, &params);
}
static void unix_device_get_feature_report(DEVICE_OBJECT *device, HID_XFER_PACKET *packet, IO_STATUS_BLOCK *io)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
struct device_report_params params =
{
.device = ext->unix_device,
.packet = packet,
.io = io,
};
winebus_call(device_get_feature_report, &params);
}
static void unix_device_set_feature_report(DEVICE_OBJECT *device, HID_XFER_PACKET *packet, IO_STATUS_BLOCK *io)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
struct device_report_params params =
{
.device = ext->unix_device,
.packet = packet,
.io = io,
};
winebus_call(device_set_feature_report, &params);
}
static DWORD get_device_index(struct device_desc *desc)
{
struct device_extension *ext;
DWORD index = 0;
LIST_FOR_EACH_ENTRY(ext, &device_list, struct device_extension, entry)
{
if (ext->desc.vid == desc->vid && ext->desc.pid == desc->pid && ext->desc.input == desc->input)
index = max(ext->index + 1, index);
}
return index;
}
static WCHAR *get_instance_id(DEVICE_OBJECT *device)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
DWORD len = wcslen(ext->desc.serialnumber) + 33;
WCHAR *dst;
if ((dst = ExAllocatePool(PagedPool, len * sizeof(WCHAR))))
{
swprintf(dst, len, L"%u&%s&%x&%u&%u", ext->desc.version, ext->desc.serialnumber,
ext->desc.uid, ext->index, ext->desc.is_gamepad);
}
return dst;
}
static WCHAR *get_device_id(DEVICE_OBJECT *device)
{
static const WCHAR input_format[] = L"&MI_%02u";
static const WCHAR winebus_format[] = L"WINEBUS\\VID_%04X&PID_%04X";
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
DWORD pos = 0, len = 0, input_len = 0, winebus_len = 25;
WCHAR *dst;
if (ext->desc.input != -1) input_len = 14;
len += winebus_len + input_len + 1;
if ((dst = ExAllocatePool(PagedPool, len * sizeof(WCHAR))))
{
pos += swprintf(dst + pos, len - pos, winebus_format, ext->desc.vid, ext->desc.pid);
if (input_len) pos += swprintf(dst + pos, len - pos, input_format, ext->desc.input);
}
return dst;
}
static WCHAR *get_hardware_ids(DEVICE_OBJECT *device)
{
static const WCHAR input_format[] = L"&MI_%02u";
static const WCHAR winebus_format[] = L"WINEBUS\\VID_%04X&PID_%04X";
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
DWORD pos = 0, len = 0, input_len = 0, winebus_len = 25;
WCHAR *dst;
if (ext->desc.input != -1) input_len = 14;
len += winebus_len + input_len + 1;
if ((dst = ExAllocatePool(PagedPool, (len + 1) * sizeof(WCHAR))))
{
pos += swprintf(dst + pos, len - pos, winebus_format, ext->desc.vid, ext->desc.pid);
if (input_len) pos += swprintf(dst + pos, len - pos, input_format, ext->desc.input);
pos += 1;
dst[pos] = 0;
}
return dst;
}
static WCHAR *get_compatible_ids(DEVICE_OBJECT *device)
{
static const WCHAR xinput_compat[] = L"WINEBUS\\WINE_COMP_XINPUT";
static const WCHAR hid_compat[] = L"WINEBUS\\WINE_COMP_HID";
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
DWORD size = sizeof(hid_compat);
WCHAR *dst;
if (ext->desc.is_gamepad) size += sizeof(xinput_compat);
if ((dst = ExAllocatePool(PagedPool, size + sizeof(WCHAR))))
{
if (ext->desc.is_gamepad) memcpy(dst, xinput_compat, sizeof(xinput_compat));
memcpy((char *)dst + size - sizeof(hid_compat), hid_compat, sizeof(hid_compat));
dst[size / sizeof(WCHAR)] = 0;
}
return dst;
}
static IRP *pop_pending_read(struct device_extension *ext)
{
IRP *pending;
RtlEnterCriticalSection(&ext->cs);
pending = ext->pending_read;
ext->pending_read = NULL;
RtlLeaveCriticalSection(&ext->cs);
return pending;
}
static void remove_pending_irps(DEVICE_OBJECT *device)
{
struct device_extension *ext = device->DeviceExtension;
IRP *pending;
if ((pending = pop_pending_read(ext)))
{
pending->IoStatus.Status = STATUS_DELETE_PENDING;
pending->IoStatus.Information = 0;
IoCompleteRequest(pending, IO_NO_INCREMENT);
}
}
static DEVICE_OBJECT *bus_create_hid_device(struct device_desc *desc, UINT64 unix_device)
{
struct device_extension *ext;
DEVICE_OBJECT *device;
UNICODE_STRING nameW;
WCHAR dev_name[256];
NTSTATUS status;
TRACE("desc %s, unix_device %#I64x\n", debugstr_device_desc(desc), unix_device);
swprintf(dev_name, ARRAY_SIZE(dev_name), L"\\Device\\WINEBUS#%p", unix_device);
RtlInitUnicodeString(&nameW, dev_name);
status = IoCreateDevice(driver_obj, sizeof(struct device_extension), &nameW, 0, 0, FALSE, &device);
if (status)
{
FIXME("failed to create device error %#lx\n", status);
return NULL;
}
RtlEnterCriticalSection(&device_list_cs);
/* fill out device_extension struct */
ext = (struct device_extension *)device->DeviceExtension;
ext->device = device;
ext->desc = *desc;
ext->index = get_device_index(desc);
ext->unix_device = unix_device;
list_init(&ext->reports);
InitializeCriticalSectionEx(&ext->cs, 0, RTL_CRITICAL_SECTION_FLAG_FORCE_DEBUG_INFO);
ext->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": cs");
/* add to list of pnp devices */
list_add_tail(&device_list, &ext->entry);
RtlLeaveCriticalSection(&device_list_cs);
TRACE("created device %p/%#I64x\n", device, unix_device);
return device;
}
static DEVICE_OBJECT *bus_find_unix_device(UINT64 unix_device)
{
struct device_extension *ext;
LIST_FOR_EACH_ENTRY(ext, &device_list, struct device_extension, entry)
if (ext->unix_device == unix_device) return ext->device;
return NULL;
}
static void bus_unlink_hid_device(DEVICE_OBJECT *device)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
RtlEnterCriticalSection(&device_list_cs);
list_remove(&ext->entry);
RtlLeaveCriticalSection(&device_list_cs);
}
#ifdef __ASM_USE_FASTCALL_WRAPPER
extern void * WINAPI wrap_fastcall_func1(void *func, const void *a);
__ASM_STDCALL_FUNC(wrap_fastcall_func1, 8,
"popl %ecx\n\t"
"popl %eax\n\t"
"xchgl (%esp),%ecx\n\t"
"jmp *%eax");
#define call_fastcall_func1(func,a) wrap_fastcall_func1(func,a)
#else
#define call_fastcall_func1(func,a) func(a)
#endif
static NTSTATUS build_device_relations(DEVICE_RELATIONS **devices)
{
struct device_extension *ext;
int i;
RtlEnterCriticalSection(&device_list_cs);
*devices = ExAllocatePool(PagedPool, offsetof(DEVICE_RELATIONS, Objects[list_count(&device_list)]));
if (!*devices)
{
RtlLeaveCriticalSection(&device_list_cs);
return STATUS_INSUFFICIENT_RESOURCES;
}
i = 0;
LIST_FOR_EACH_ENTRY(ext, &device_list, struct device_extension, entry)
{
(*devices)->Objects[i] = ext->device;
call_fastcall_func1(ObfReferenceObject, ext->device);
i++;
}
RtlLeaveCriticalSection(&device_list_cs);
(*devices)->Count = i;
return STATUS_SUCCESS;
}
static DWORD check_bus_option(const WCHAR *option, DWORD default_value)
{
char buffer[FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[sizeof(DWORD)])];
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
UNICODE_STRING str;
DWORD size;
RtlInitUnicodeString(&str, option);
if (NtQueryValueKey(driver_key, &str, KeyValuePartialInformation, info, sizeof(buffer), &size) == STATUS_SUCCESS)
{
if (info->Type == REG_DWORD) return *(DWORD *)info->Data;
}
return default_value;
}
static BOOL is_hidraw_enabled(WORD vid, WORD pid)
{
char buffer[FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[1024])];
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
WCHAR vidpid[MAX_PATH], *tmp;
BOOL prefer_hidraw = FALSE;
UNICODE_STRING str;
DWORD size;
if (check_bus_option(L"DisableHidraw", FALSE)) return FALSE;
if (!check_bus_option(L"Enable SDL", 1) && check_bus_option(L"DisableInput", 0))
prefer_hidraw = TRUE;
if (is_dualshock4_gamepad(vid, pid)) prefer_hidraw = TRUE;
if (is_dualsense_gamepad(vid, pid)) prefer_hidraw = TRUE;
RtlInitUnicodeString(&str, L"EnableHidraw");
if (!NtQueryValueKey(driver_key, &str, KeyValuePartialInformation, info,
sizeof(buffer) - sizeof(WCHAR), &size))
{
UINT len = swprintf(vidpid, ARRAY_SIZE(vidpid), L"%04X:%04X", vid, pid);
size -= FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[0]);
tmp = (WCHAR *)info->Data;
while (size >= len * sizeof(WCHAR))
{
if (!wcsnicmp(tmp, vidpid, len)) prefer_hidraw = TRUE;
size -= (len + 1) * sizeof(WCHAR);
tmp += len + 1;
}
}
return prefer_hidraw;
}
static BOOL deliver_next_report(struct device_extension *ext, IRP *irp)
{
struct hid_report *report;
struct list *entry;
ULONG i;
if (!(entry = list_head(&ext->reports))) return FALSE;
report = LIST_ENTRY(entry, struct hid_report, entry);
list_remove(&report->entry);
memcpy(irp->UserBuffer, report->buffer, report->length);
irp->IoStatus.Information = report->length;
irp->IoStatus.Status = STATUS_SUCCESS;
if (TRACE_ON(hid))
{
TRACE("device %p/%#I64x input report length %lu:\n", ext->device, ext->unix_device, report->length);
for (i = 0; i < report->length;)
{
char buffer[256], *buf = buffer;
buf += sprintf(buf, "%08lx ", i);
do { buf += sprintf(buf, " %02x", report->buffer[i]); }
while (++i % 16 && i < report->length);
TRACE("%s\n", buffer);
}
}
RtlFreeHeap(GetProcessHeap(), 0, report);
return TRUE;
}
static void process_hid_report(DEVICE_OBJECT *device, BYTE *report_buf, DWORD report_len)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
ULONG size = offsetof(struct hid_report, buffer[report_len]);
struct hid_report *report, *last_report;
IRP *irp;
if (!(report = RtlAllocateHeap(GetProcessHeap(), 0, size))) return;
memcpy(report->buffer, report_buf, report_len);
report->length = report_len;
RtlEnterCriticalSection(&ext->cs);
list_add_tail(&ext->reports, &report->entry);
if (!ext->collection_desc.ReportIDs[0].ReportID) last_report = ext->last_reports[0];
else last_report = ext->last_reports[report_buf[0]];
memcpy(last_report->buffer, report_buf, report_len);
if ((irp = pop_pending_read(ext)))
{
deliver_next_report(ext, irp);
IoCompleteRequest(irp, IO_NO_INCREMENT);
}
RtlLeaveCriticalSection(&ext->cs);
}
static NTSTATUS handle_IRP_MN_QUERY_DEVICE_RELATIONS(IRP *irp)
{
NTSTATUS status = irp->IoStatus.Status;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
TRACE("IRP_MN_QUERY_DEVICE_RELATIONS\n");
switch (irpsp->Parameters.QueryDeviceRelations.Type)
{
case EjectionRelations:
case RemovalRelations:
case TargetDeviceRelation:
case PowerRelations:
FIXME("Unhandled Device Relation %x\n",irpsp->Parameters.QueryDeviceRelations.Type);
break;
case BusRelations:
status = build_device_relations((DEVICE_RELATIONS**)&irp->IoStatus.Information);
break;
default:
FIXME("Unknown Device Relation %x\n",irpsp->Parameters.QueryDeviceRelations.Type);
break;
}
return status;
}
static NTSTATUS handle_IRP_MN_QUERY_ID(DEVICE_OBJECT *device, IRP *irp)
{
NTSTATUS status = irp->IoStatus.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_hardware_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:
WARN("Unhandled type %08x\n", type);
return status;
}
status = irp->IoStatus.Information ? STATUS_SUCCESS : STATUS_NO_MEMORY;
return status;
}
static void mouse_device_create(void)
{
struct device_create_params params = {{0}};
if (winebus_call(mouse_create, &params)) return;
mouse_obj = bus_create_hid_device(&params.desc, params.device);
IoInvalidateDeviceRelations(bus_pdo, BusRelations);
}
static void keyboard_device_create(void)
{
struct device_create_params params = {{0}};
if (winebus_call(keyboard_create, &params)) return;
keyboard_obj = bus_create_hid_device(&params.desc, params.device);
IoInvalidateDeviceRelations(bus_pdo, BusRelations);
}
static DWORD bus_count;
static HANDLE bus_thread[16];
struct bus_main_params
{
const WCHAR *name;
void *init_args;
HANDLE init_done;
NTSTATUS *init_status;
unsigned int init_code;
unsigned int wait_code;
struct bus_event *bus_event;
};
static DWORD CALLBACK bus_main_thread(void *args)
{
struct bus_main_params bus = *(struct bus_main_params *)args;
DEVICE_OBJECT *device;
NTSTATUS status;
TRACE("%s main loop starting\n", debugstr_w(bus.name));
status = winebus_call(bus.init_code, bus.init_args);
*bus.init_status = status;
SetEvent(bus.init_done);
TRACE("%s main loop started\n", debugstr_w(bus.name));
bus.bus_event->type = BUS_EVENT_TYPE_NONE;
if (status) WARN("%s bus init returned status %#lx\n", debugstr_w(bus.name), status);
else while ((status = winebus_call(bus.wait_code, bus.bus_event)) == STATUS_PENDING)
{
struct bus_event *event = bus.bus_event;
switch (event->type)
{
case BUS_EVENT_TYPE_NONE: break;
case BUS_EVENT_TYPE_DEVICE_REMOVED:
RtlEnterCriticalSection(&device_list_cs);
device = bus_find_unix_device(event->device);
if (!device) WARN("could not find device for %s bus device %#I64x\n", debugstr_w(bus.name), event->device);
else bus_unlink_hid_device(device);
RtlLeaveCriticalSection(&device_list_cs);
IoInvalidateDeviceRelations(bus_pdo, BusRelations);
break;
case BUS_EVENT_TYPE_DEVICE_CREATED:
{
const struct device_desc *desc = &event->device_created.desc;
if (!desc->is_hidraw != !is_hidraw_enabled(desc->vid, desc->pid))
{
WARN("ignoring %shidraw device %04x:%04x\n", desc->is_hidraw ? "" : "non-", desc->vid, desc->pid);
break;
}
device = bus_create_hid_device(&event->device_created.desc, event->device);
if (device) IoInvalidateDeviceRelations(bus_pdo, BusRelations);
else
{
struct device_remove_params params = {.device = event->device};
WARN("failed to create device for %s bus device %#I64x\n", debugstr_w(bus.name), event->device);
winebus_call(device_remove, &params);
}
break;
}
case BUS_EVENT_TYPE_INPUT_REPORT:
RtlEnterCriticalSection(&device_list_cs);
device = bus_find_unix_device(event->device);
if (!device) WARN("could not find device for %s bus device %#I64x\n", debugstr_w(bus.name), event->device);
else process_hid_report(device, event->input_report.buffer, event->input_report.length);
RtlLeaveCriticalSection(&device_list_cs);
break;
}
}
if (status) WARN("%s bus wait returned status %#lx\n", debugstr_w(bus.name), status);
else TRACE("%s main loop exited\n", debugstr_w(bus.name));
RtlFreeHeap(GetProcessHeap(), 0, bus.bus_event);
return status;
}
static NTSTATUS bus_main_thread_start(struct bus_main_params *bus)
{
DWORD i = bus_count++, max_size;
NTSTATUS status;
if (!(bus->init_done = CreateEventW(NULL, FALSE, FALSE, NULL)))
{
ERR("failed to create %s bus init done event.\n", debugstr_w(bus->name));
bus_count--;
return STATUS_UNSUCCESSFUL;
}
max_size = offsetof(struct bus_event, input_report.buffer[0x10000]);
if (!(bus->bus_event = RtlAllocateHeap(GetProcessHeap(), 0, max_size)))
{
ERR("failed to allocate %s bus event.\n", debugstr_w(bus->name));
CloseHandle(bus->init_done);
bus_count--;
return STATUS_UNSUCCESSFUL;
}
bus->init_status = &status;
if (!(bus_thread[i] = CreateThread(NULL, 0, bus_main_thread, bus, 0, NULL)))
{
ERR("failed to create %s bus thread.\n", debugstr_w(bus->name));
CloseHandle(bus->init_done);
bus_count--;
return STATUS_UNSUCCESSFUL;
}
WaitForSingleObject(bus->init_done, INFINITE);
CloseHandle(bus->init_done);
return status;
}
static void sdl_bus_free_mappings(struct sdl_bus_options *options)
{
DWORD count = options->mappings_count;
char **mappings = options->mappings;
while (count) RtlFreeHeap(GetProcessHeap(), 0, mappings[--count]);
RtlFreeHeap(GetProcessHeap(), 0, mappings);
}
static void sdl_bus_load_mappings(struct sdl_bus_options *options)
{
ULONG idx = 0, len, count = 0, capacity, info_size, info_max_size;
UNICODE_STRING path = RTL_CONSTANT_STRING(L"map");
KEY_VALUE_FULL_INFORMATION *info;
OBJECT_ATTRIBUTES attr = {0};
char **mappings = NULL;
NTSTATUS status;
HANDLE key;
options->mappings_count = 0;
options->mappings = NULL;
InitializeObjectAttributes(&attr, &path, OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE, driver_key, NULL);
status = NtOpenKey(&key, KEY_ALL_ACCESS, &attr);
if (status) return;
capacity = 1024;
mappings = RtlAllocateHeap(GetProcessHeap(), 0, capacity * sizeof(*mappings));
info_max_size = offsetof(KEY_VALUE_FULL_INFORMATION, Name) + 512;
info = RtlAllocateHeap(GetProcessHeap(), 0, info_max_size);
while (!status && info && mappings)
{
status = NtEnumerateValueKey(key, idx, KeyValueFullInformation, info, info_max_size, &info_size);
while (status == STATUS_BUFFER_OVERFLOW)
{
info_max_size = info_size;
if (!(info = RtlReAllocateHeap(GetProcessHeap(), 0, info, info_max_size))) break;
status = NtEnumerateValueKey(key, idx, KeyValueFullInformation, info, info_max_size, &info_size);
}
if (status == STATUS_NO_MORE_ENTRIES)
{
options->mappings_count = count;
options->mappings = mappings;
goto done;
}
idx++;
if (status) break;
if (info->Type != REG_SZ) continue;
RtlUnicodeToMultiByteSize(&len, (WCHAR *)((char *)info + info->DataOffset), info_size - info->DataOffset);
if (!len) continue;
if (!(mappings[count++] = RtlAllocateHeap(GetProcessHeap(), 0, len + 1))) break;
if (count > capacity)
{
capacity = capacity * 3 / 2;
if (!(mappings = RtlReAllocateHeap(GetProcessHeap(), 0, mappings, capacity * sizeof(*mappings))))
break;
}
RtlUnicodeToMultiByteN(mappings[count], len, NULL, (WCHAR *)((char *)info + info->DataOffset),
info_size - info->DataOffset);
if (mappings[len - 1]) mappings[len] = 0;
}
if (mappings) while (count) RtlFreeHeap(GetProcessHeap(), 0, mappings[--count]);
RtlFreeHeap(GetProcessHeap(), 0, mappings);
done:
RtlFreeHeap(GetProcessHeap(), 0, info);
NtClose(key);
}
static NTSTATUS sdl_driver_init(void)
{
struct sdl_bus_options bus_options;
struct bus_main_params bus =
{
.name = L"SDL",
.init_args = &bus_options,
.init_code = sdl_init,
.wait_code = sdl_wait,
};
NTSTATUS status;
bus_options.split_controllers = check_bus_option(L"Split Controllers", 0);
if (bus_options.split_controllers) TRACE("SDL controller splitting enabled\n");
bus_options.map_controllers = check_bus_option(L"Map Controllers", 1);
if (!bus_options.map_controllers) TRACE("SDL controller to XInput HID gamepad mapping disabled\n");
sdl_bus_load_mappings(&bus_options);
status = bus_main_thread_start(&bus);
sdl_bus_free_mappings(&bus_options);
return status;
}
static NTSTATUS udev_driver_init(BOOL enable_sdl)
{
struct udev_bus_options bus_options;
struct bus_main_params bus =
{
.name = L"UDEV",
.init_args = &bus_options,
.init_code = udev_init,
.wait_code = udev_wait,
};
bus_options.disable_hidraw = check_bus_option(L"DisableHidraw", 0);
if (bus_options.disable_hidraw) TRACE("UDEV hidraw devices disabled in registry\n");
bus_options.disable_input = check_bus_option(L"DisableInput", 0) || enable_sdl;
if (bus_options.disable_input) TRACE("UDEV input devices disabled in registry\n");
bus_options.disable_udevd = check_bus_option(L"DisableUdevd", 0);
if (bus_options.disable_udevd) TRACE("UDEV udevd use disabled in registry\n");
return bus_main_thread_start(&bus);
}
static NTSTATUS iohid_driver_init(void)
{
struct iohid_bus_options bus_options;
struct bus_main_params bus =
{
.name = L"IOHID",
.init_args = &bus_options,
.init_code = iohid_init,
.wait_code = iohid_wait,
};
if (check_bus_option(L"DisableHidraw", FALSE))
{
TRACE("IOHID hidraw devices disabled in registry\n");
return STATUS_SUCCESS;
}
return bus_main_thread_start(&bus);
}
static NTSTATUS fdo_pnp_dispatch(DEVICE_OBJECT *device, IRP *irp)
{
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation(irp);
BOOL enable_sdl;
NTSTATUS ret;
switch (irpsp->MinorFunction)
{
case IRP_MN_QUERY_DEVICE_RELATIONS:
irp->IoStatus.Status = handle_IRP_MN_QUERY_DEVICE_RELATIONS(irp);
break;
case IRP_MN_START_DEVICE:
mouse_device_create();
keyboard_device_create();
if ((enable_sdl = check_bus_option(L"Enable SDL", 1)))
enable_sdl = !sdl_driver_init();
udev_driver_init(enable_sdl);
iohid_driver_init();
irp->IoStatus.Status = STATUS_SUCCESS;
break;
case IRP_MN_SURPRISE_REMOVAL:
irp->IoStatus.Status = STATUS_SUCCESS;
break;
case IRP_MN_REMOVE_DEVICE:
winebus_call(sdl_stop, NULL);
winebus_call(udev_stop, NULL);
winebus_call(iohid_stop, NULL);
WaitForMultipleObjects(bus_count, bus_thread, TRUE, INFINITE);
while (bus_count--) CloseHandle(bus_thread[bus_count]);
irp->IoStatus.Status = STATUS_SUCCESS;
IoSkipCurrentIrpStackLocation(irp);
ret = IoCallDriver(bus_pdo, irp);
IoDetachDevice(bus_pdo);
IoDeleteDevice(device);
return ret;
default:
FIXME("Unhandled minor function %#x.\n", irpsp->MinorFunction);
}
IoSkipCurrentIrpStackLocation(irp);
return IoCallDriver(bus_pdo, irp);
}
static NTSTATUS pdo_pnp_dispatch(DEVICE_OBJECT *device, IRP *irp)
{
struct device_extension *ext = device->DeviceExtension;
NTSTATUS status = irp->IoStatus.Status;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation(irp);
struct hid_report *report, *next;
HIDP_REPORT_IDS *reports;
ULONG i, size;
TRACE("device %p, irp %p, minor function %#x.\n", device, irp, irpsp->MinorFunction);
switch (irpsp->MinorFunction)
{
case IRP_MN_QUERY_ID:
status = handle_IRP_MN_QUERY_ID(device, irp);
break;
case IRP_MN_QUERY_CAPABILITIES:
status = STATUS_SUCCESS;
break;
case IRP_MN_START_DEVICE:
RtlEnterCriticalSection(&ext->cs);
if (ext->state != DEVICE_STATE_STOPPED) status = STATUS_SUCCESS;
else if (ext->state == DEVICE_STATE_REMOVED) status = STATUS_DELETE_PENDING;
else if ((status = unix_device_start(device)))
ERR("Failed to start device %p, status %#lx\n", device, status);
else
{
status = unix_device_get_report_descriptor(device, NULL, 0, &ext->report_desc_length);
if (status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
ERR("Failed to get device %p report descriptor, status %#lx\n", device, status);
else if (!(ext->report_desc = RtlAllocateHeap(GetProcessHeap(), 0, ext->report_desc_length)))
status = STATUS_NO_MEMORY;
else if ((status = unix_device_get_report_descriptor(device, ext->report_desc, ext->report_desc_length,
&ext->report_desc_length)))
ERR("Failed to get device %p report descriptor, status %#lx\n", device, status);
else if ((status = HidP_GetCollectionDescription(ext->report_desc, ext->report_desc_length,
PagedPool, &ext->collection_desc)) != HIDP_STATUS_SUCCESS)
ERR("Failed to parse device %p report descriptor, status %#lx\n", device, status);
else
{
status = STATUS_SUCCESS;
reports = ext->collection_desc.ReportIDs;
for (i = 0; i < ext->collection_desc.ReportIDsLength; ++i)
{
if (!(size = reports[i].InputLength)) continue;
size = offsetof( struct hid_report, buffer[size] );
if (!(report = RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, size))) status = STATUS_NO_MEMORY;
else
{
report->length = reports[i].InputLength;
report->buffer[0] = reports[i].ReportID;
ext->last_reports[reports[i].ReportID] = report;
}
}
if (!status) ext->state = DEVICE_STATE_STARTED;
}
}
RtlLeaveCriticalSection(&ext->cs);
break;
case IRP_MN_SURPRISE_REMOVAL:
RtlEnterCriticalSection(&ext->cs);
remove_pending_irps(device);
ext->state = DEVICE_STATE_REMOVED;
RtlLeaveCriticalSection(&ext->cs);
status = STATUS_SUCCESS;
break;
case IRP_MN_REMOVE_DEVICE:
remove_pending_irps(device);
bus_unlink_hid_device(device);
unix_device_remove(device);
ext->cs.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&ext->cs);
irp->IoStatus.Status = STATUS_SUCCESS;
IoCompleteRequest(irp, IO_NO_INCREMENT);
LIST_FOR_EACH_ENTRY_SAFE(report, next, &ext->reports, struct hid_report, entry)
RtlFreeHeap(GetProcessHeap(), 0, report);
reports = ext->collection_desc.ReportIDs;
for (i = 0; i < ext->collection_desc.ReportIDsLength; ++i)
{
if (!reports[i].InputLength) continue;
RtlFreeHeap(GetProcessHeap(), 0, ext->last_reports[reports[i].ReportID]);
}
HidP_FreeCollectionDescription(&ext->collection_desc);
RtlFreeHeap(GetProcessHeap(), 0, ext->report_desc);
IoDeleteDevice(device);
return STATUS_SUCCESS;
default:
FIXME("Unhandled function %08x\n", irpsp->MinorFunction);
/* fall through */
case IRP_MN_QUERY_DEVICE_RELATIONS:
break;
}
irp->IoStatus.Status = status;
IoCompleteRequest(irp, IO_NO_INCREMENT);
return status;
}
static NTSTATUS WINAPI common_pnp_dispatch(DEVICE_OBJECT *device, IRP *irp)
{
if (device == bus_fdo)
return fdo_pnp_dispatch(device, irp);
return pdo_pnp_dispatch(device, irp);
}
static NTSTATUS hid_get_device_string(DEVICE_OBJECT *device, DWORD index, WCHAR *buffer, DWORD buffer_len)
{
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
DWORD len;
switch (index)
{
case HID_STRING_ID_IMANUFACTURER:
len = (wcslen(ext->desc.manufacturer) + 1) * sizeof(WCHAR);
if (len > buffer_len) return STATUS_BUFFER_TOO_SMALL;
else memcpy(buffer, ext->desc.manufacturer, len);
return STATUS_SUCCESS;
case HID_STRING_ID_IPRODUCT:
len = (wcslen(ext->desc.product) + 1) * sizeof(WCHAR);
if (len > buffer_len) return STATUS_BUFFER_TOO_SMALL;
else memcpy(buffer, ext->desc.product, len);
return STATUS_SUCCESS;
case HID_STRING_ID_ISERIALNUMBER:
len = (wcslen(ext->desc.serialnumber) + 1) * sizeof(WCHAR);
if (len > buffer_len) return STATUS_BUFFER_TOO_SMALL;
else memcpy(buffer, ext->desc.serialnumber, len);
return STATUS_SUCCESS;
}
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS WINAPI hid_internal_dispatch(DEVICE_OBJECT *device, IRP *irp)
{
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation(irp);
struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
ULONG i, code, buffer_len = irpsp->Parameters.DeviceIoControl.OutputBufferLength;
NTSTATUS status;
if (device == bus_fdo)
{
IoSkipCurrentIrpStackLocation(irp);
return IoCallDriver(bus_pdo, irp);
}
RtlEnterCriticalSection(&ext->cs);
if (ext->state == DEVICE_STATE_REMOVED)
{
RtlLeaveCriticalSection(&ext->cs);
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_DEVICE_ATTRIBUTES:
{
HID_DEVICE_ATTRIBUTES *attr = (HID_DEVICE_ATTRIBUTES *)irp->UserBuffer;
TRACE("IOCTL_HID_GET_DEVICE_ATTRIBUTES\n");
if (buffer_len < sizeof(*attr))
{
irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
break;
}
memset(attr, 0, sizeof(*attr));
attr->Size = sizeof(*attr);
attr->VendorID = ext->desc.vid;
attr->ProductID = ext->desc.pid;
attr->VersionNumber = ext->desc.version;
irp->IoStatus.Status = STATUS_SUCCESS;
irp->IoStatus.Information = sizeof(*attr);
break;
}
case IOCTL_HID_GET_DEVICE_DESCRIPTOR:
{
HID_DESCRIPTOR *descriptor = (HID_DESCRIPTOR *)irp->UserBuffer;
irp->IoStatus.Information = sizeof(*descriptor);
if (buffer_len < sizeof(*descriptor)) irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
else
{
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 = ext->report_desc_length;
irp->IoStatus.Status = STATUS_SUCCESS;
}
break;
}
case IOCTL_HID_GET_REPORT_DESCRIPTOR:
irp->IoStatus.Information = ext->report_desc_length;
if (buffer_len < irp->IoStatus.Information)
irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
else
{
memcpy(irp->UserBuffer, ext->report_desc, ext->report_desc_length);
irp->IoStatus.Status = STATUS_SUCCESS;
}
break;
case IOCTL_HID_GET_STRING:
{
UINT index = (UINT_PTR)irpsp->Parameters.DeviceIoControl.Type3InputBuffer;
TRACE("IOCTL_HID_GET_STRING[%08x]\n", index);
irp->IoStatus.Status = hid_get_device_string(device, index, (WCHAR *)irp->UserBuffer, buffer_len);
if (irp->IoStatus.Status == STATUS_SUCCESS)
irp->IoStatus.Information = (wcslen((WCHAR *)irp->UserBuffer) + 1) * sizeof(WCHAR);
break;
}
case IOCTL_HID_GET_INPUT_REPORT:
{
HID_XFER_PACKET *packet = (HID_XFER_PACKET *)irp->UserBuffer;
struct hid_report *last_report = ext->last_reports[packet->reportId];
memcpy(packet->reportBuffer, last_report->buffer, last_report->length);
packet->reportBufferLen = last_report->length;
irp->IoStatus.Information = packet->reportBufferLen;
irp->IoStatus.Status = STATUS_SUCCESS;
if (TRACE_ON(hid))
{
TRACE("read input report id %u length %lu:\n", packet->reportId, packet->reportBufferLen);
for (i = 0; i < packet->reportBufferLen;)
{
char buffer[256], *buf = buffer;
buf += sprintf(buf, "%08lx ", i);
do { buf += sprintf(buf, " %02x", packet->reportBuffer[i]); }
while (++i % 16 && i < packet->reportBufferLen);
TRACE("%s\n", buffer);
}
}
break;
}
case IOCTL_HID_READ_REPORT:
{
if (!deliver_next_report(ext, irp))
{
/* hidclass.sys should guarantee this */
assert(!ext->pending_read);
ext->pending_read = irp;
IoMarkIrpPending(irp);
irp->IoStatus.Status = STATUS_PENDING;
}
break;
}
case IOCTL_HID_SET_OUTPUT_REPORT:
case IOCTL_HID_WRITE_REPORT:
{
HID_XFER_PACKET *packet = (HID_XFER_PACKET *)irp->UserBuffer;
if (TRACE_ON(hid))
{
TRACE("write output report id %u length %lu:\n", packet->reportId, packet->reportBufferLen);
for (i = 0; i < packet->reportBufferLen;)
{
char buffer[256], *buf = buffer;
buf += sprintf(buf, "%08lx ", i);
do { buf += sprintf(buf, " %02x", packet->reportBuffer[i]); }
while (++i % 16 && i < packet->reportBufferLen);
TRACE("%s\n", buffer);
}
}
unix_device_set_output_report(device, packet, &irp->IoStatus);
break;
}
case IOCTL_HID_GET_FEATURE:
{
HID_XFER_PACKET *packet = (HID_XFER_PACKET *)irp->UserBuffer;
unix_device_get_feature_report(device, packet, &irp->IoStatus);
if (!irp->IoStatus.Status && TRACE_ON(hid))
{
TRACE("read feature report id %u length %lu:\n", packet->reportId, packet->reportBufferLen);
for (i = 0; i < packet->reportBufferLen;)
{
char buffer[256], *buf = buffer;
buf += sprintf(buf, "%08lx ", i);
do { buf += sprintf(buf, " %02x", packet->reportBuffer[i]); }
while (++i % 16 && i < packet->reportBufferLen);
TRACE("%s\n", buffer);
}
}
break;
}
case IOCTL_HID_SET_FEATURE:
{
HID_XFER_PACKET *packet = (HID_XFER_PACKET *)irp->UserBuffer;
if (TRACE_ON(hid))
{
TRACE("write feature report id %u length %lu:\n", packet->reportId, packet->reportBufferLen);
for (i = 0; i < packet->reportBufferLen;)
{
char buffer[256], *buf = buffer;
buf += sprintf(buf, "%08lx ", i);
do { buf += sprintf(buf, " %02x", packet->reportBuffer[i]); }
while (++i % 16 && i < packet->reportBufferLen);
TRACE("%s\n", buffer);
}
}
unix_device_set_feature_report(device, packet, &irp->IoStatus);
break;
}
default:
FIXME("Unsupported ioctl %lx (device=%lx access=%lx func=%lx method=%lx)\n",
code, code >> 16, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3);
break;
}
status = irp->IoStatus.Status;
RtlLeaveCriticalSection(&ext->cs);
if (status != STATUS_PENDING) IoCompleteRequest(irp, IO_NO_INCREMENT);
return status;
}
static NTSTATUS WINAPI driver_add_device(DRIVER_OBJECT *driver, DEVICE_OBJECT *pdo)
{
NTSTATUS ret;
TRACE("driver %p, pdo %p.\n", driver, pdo);
if ((ret = IoCreateDevice(driver, 0, NULL, FILE_DEVICE_BUS_EXTENDER, 0, FALSE, &bus_fdo)))
{
ERR("Failed to create FDO, status %#lx.\n", ret);
return ret;
}
IoAttachDeviceToDeviceStack(bus_fdo, pdo);
bus_pdo = pdo;
bus_fdo->Flags &= ~DO_DEVICE_INITIALIZING;
return STATUS_SUCCESS;
}
static void WINAPI driver_unload(DRIVER_OBJECT *driver)
{
NtClose(driver_key);
}
NTSTATUS WINAPI DriverEntry( DRIVER_OBJECT *driver, UNICODE_STRING *path )
{
OBJECT_ATTRIBUTES attr = {0};
NTSTATUS ret;
TRACE( "(%p, %s)\n", driver, debugstr_w(path->Buffer) );
if ((ret = __wine_init_unix_call())) return ret;
attr.Length = sizeof(attr);
attr.ObjectName = path;
attr.Attributes = OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE;
if ((ret = NtOpenKey(&driver_key, KEY_ALL_ACCESS, &attr)) != STATUS_SUCCESS)
ERR("Failed to open driver key, status %#lx.\n", ret);
driver_obj = driver;
driver->MajorFunction[IRP_MJ_PNP] = common_pnp_dispatch;
driver->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = hid_internal_dispatch;
driver->DriverExtension->AddDevice = driver_add_device;
driver->DriverUnload = driver_unload;
return STATUS_SUCCESS;
}
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