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Sweden-Number/dlls/winebus.sys/bus_udev.c

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/*
* Plug and Play support for hid devices found through udev
*
* Copyright 2016 CodeWeavers, 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 <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_POLL_H
# include <poll.h>
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#ifdef HAVE_LIBUDEV_H
# include <libudev.h>
#endif
#ifdef HAVE_LINUX_HIDRAW_H
# include <linux/hidraw.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_LINUX_INPUT_H
# include <linux/input.h>
# undef SW_MAX
# if defined(EVIOCGBIT) && defined(EV_ABS) && defined(BTN_PINKIE)
# define HAS_PROPER_INPUT_HEADER
# endif
# ifndef SYN_DROPPED
# define SYN_DROPPED 3
# endif
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winternl.h"
#include "ddk/wdm.h"
#include "ddk/hidtypes.h"
#include "ddk/hidsdi.h"
#include "wine/debug.h"
#include "wine/heap.h"
#include "wine/unicode.h"
#ifdef HAS_PROPER_INPUT_HEADER
# include "hidusage.h"
#endif
#ifdef WORDS_BIGENDIAN
#define LE_WORD(x) RtlUshortByteSwap(x)
#define LE_DWORD(x) RtlUlongByteSwap(x)
#else
#define LE_WORD(x) (x)
#define LE_DWORD(x) (x)
#endif
#include "bus.h"
#include "unix_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(plugplay);
#ifdef HAVE_UDEV
WINE_DECLARE_DEBUG_CHANNEL(hid_report);
static CRITICAL_SECTION udev_cs;
static CRITICAL_SECTION_DEBUG udev_cs_debug =
{
0, 0, &udev_cs,
{ &udev_cs_debug.ProcessLocksList, &udev_cs_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": udev_cs") }
};
static CRITICAL_SECTION udev_cs = { &udev_cs_debug, -1, 0, 0, 0, 0 };
static struct udev *udev_context = NULL;
static struct udev_monitor *udev_monitor;
static int deviceloop_control[2];
static int udev_monitor_fd;
static struct list event_queue = LIST_INIT(event_queue);
static struct list device_list = LIST_INIT(device_list);
static const WCHAR hidraw_busidW[] = {'H','I','D','R','A','W',0};
static const WCHAR lnxev_busidW[] = {'L','N','X','E','V',0};
static struct udev_bus_options options;
struct platform_private
{
struct unix_device unix_device;
struct udev_device *udev_device;
int device_fd;
HANDLE report_thread;
int control_pipe[2];
};
static inline struct platform_private *impl_from_unix_device(struct unix_device *iface)
{
return CONTAINING_RECORD(iface, struct platform_private, unix_device);
}
static inline struct platform_private *impl_from_DEVICE_OBJECT(DEVICE_OBJECT *device)
{
return impl_from_unix_device(get_unix_device(device));
}
static const char *get_device_syspath(struct udev_device *dev)
{
struct udev_device *parent;
if ((parent = udev_device_get_parent_with_subsystem_devtype(dev, "hid", NULL)))
return udev_device_get_syspath(parent);
if ((parent = udev_device_get_parent_with_subsystem_devtype(dev, "usb", "usb_device")))
return udev_device_get_syspath(parent);
return "";
}
static struct platform_private *find_device_from_syspath(const char *path)
{
struct platform_private *device;
LIST_FOR_EACH_ENTRY(device, &device_list, struct platform_private, unix_device.entry)
if (!strcmp(get_device_syspath(device->udev_device), path)) return device;
return NULL;
}
#ifdef HAS_PROPER_INPUT_HEADER
static const BYTE ABS_TO_HID_MAP[][2] = {
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_X}, /*ABS_X*/
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_Y}, /*ABS_Y*/
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_Z}, /*ABS_Z*/
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_RX}, /*ABS_RX*/
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_RY}, /*ABS_RY*/
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_RZ}, /*ABS_RZ*/
{HID_USAGE_PAGE_SIMULATION, HID_USAGE_SIMULATION_THROTTLE}, /*ABS_THROTTLE*/
{HID_USAGE_PAGE_SIMULATION, HID_USAGE_SIMULATION_RUDDER}, /*ABS_RUDDER*/
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_WHEEL}, /*ABS_WHEEL*/
{HID_USAGE_PAGE_SIMULATION, HID_USAGE_SIMULATION_ACCELERATOR}, /*ABS_GAS*/
{HID_USAGE_PAGE_SIMULATION, HID_USAGE_SIMULATION_BRAKE}, /*ABS_BRAKE*/
{0,0},
{0,0},
{0,0},
{0,0},
{0,0},
{0,0}, /*ABS_HAT0X*/
{0,0}, /*ABS_HAT0Y*/
{0,0}, /*ABS_HAT1X*/
{0,0}, /*ABS_HAT1Y*/
{0,0}, /*ABS_HAT2X*/
{0,0}, /*ABS_HAT2Y*/
{0,0}, /*ABS_HAT3X*/
{0,0}, /*ABS_HAT3Y*/
{HID_USAGE_PAGE_DIGITIZER, HID_USAGE_DIGITIZER_TIP_PRESSURE}, /*ABS_PRESSURE*/
{0, 0}, /*ABS_DISTANCE*/
{HID_USAGE_PAGE_DIGITIZER, HID_USAGE_DIGITIZER_X_TILT}, /*ABS_TILT_X*/
{HID_USAGE_PAGE_DIGITIZER, HID_USAGE_DIGITIZER_Y_TILT}, /*ABS_TILT_Y*/
{0, 0}, /*ABS_TOOL_WIDTH*/
{0, 0},
{0, 0},
{0, 0},
{HID_USAGE_PAGE_CONSUMER, HID_USAGE_CONSUMER_VOLUME} /*ABS_VOLUME*/
};
#define HID_ABS_MAX (ABS_VOLUME+1)
C_ASSERT(ARRAY_SIZE(ABS_TO_HID_MAP) == HID_ABS_MAX);
#define TOP_ABS_PAGE (HID_USAGE_PAGE_DIGITIZER+1)
static const BYTE REL_TO_HID_MAP[][2] = {
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_X}, /* REL_X */
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_Y}, /* REL_Y */
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_Z}, /* REL_Z */
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_RX}, /* REL_RX */
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_RY}, /* REL_RY */
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_RZ}, /* REL_RZ */
{0, 0}, /* REL_HWHEEL */
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_DIAL}, /* REL_DIAL */
{HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_WHEEL}, /* REL_WHEEL */
{0, 0} /* REL_MISC */
};
#define HID_REL_MAX (REL_MISC+1)
#define TOP_REL_PAGE (HID_USAGE_PAGE_CONSUMER+1)
struct wine_input_private {
struct platform_private base;
int buffer_length;
BYTE *last_report_buffer;
BYTE *current_report_buffer;
enum { FIRST, NORMAL, DROPPED } report_state;
struct hid_descriptor desc;
int button_start;
BYTE button_map[KEY_MAX];
BYTE rel_map[HID_REL_MAX];
BYTE hat_map[8];
int hat_values[8];
int abs_map[HID_ABS_MAX];
};
#define test_bit(arr,bit) (((BYTE*)(arr))[(bit)>>3]&(1<<((bit)&7)))
static const BYTE* what_am_I(struct udev_device *dev)
{
static const BYTE Unknown[2] = {HID_USAGE_PAGE_GENERIC, 0};
static const BYTE Mouse[2] = {HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_MOUSE};
static const BYTE Keyboard[2] = {HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_KEYBOARD};
static const BYTE Gamepad[2] = {HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_GAMEPAD};
static const BYTE Keypad[2] = {HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_KEYPAD};
static const BYTE Tablet[2] = {HID_USAGE_PAGE_DIGITIZER, HID_USAGE_DIGITIZER_PEN};
static const BYTE Touchscreen[2] = {HID_USAGE_PAGE_DIGITIZER, HID_USAGE_DIGITIZER_TOUCH_SCREEN};
static const BYTE Touchpad[2] = {HID_USAGE_PAGE_DIGITIZER, HID_USAGE_DIGITIZER_TOUCH_PAD};
struct udev_device *parent = dev;
/* Look to the parents until we get a clue */
while (parent)
{
if (udev_device_get_property_value(parent, "ID_INPUT_MOUSE"))
return Mouse;
else if (udev_device_get_property_value(parent, "ID_INPUT_KEYBOARD"))
return Keyboard;
else if (udev_device_get_property_value(parent, "ID_INPUT_JOYSTICK"))
return Gamepad;
else if (udev_device_get_property_value(parent, "ID_INPUT_KEY"))
return Keypad;
else if (udev_device_get_property_value(parent, "ID_INPUT_TOUCHPAD"))
return Touchpad;
else if (udev_device_get_property_value(parent, "ID_INPUT_TOUCHSCREEN"))
return Touchscreen;
else if (udev_device_get_property_value(parent, "ID_INPUT_TABLET"))
return Tablet;
parent = udev_device_get_parent_with_subsystem_devtype(parent, "input", NULL);
}
return Unknown;
}
static void set_button_value(int index, int value, BYTE* buffer)
{
int bindex = index / 8;
int b = index % 8;
BYTE mask;
mask = 1<<b;
if (value)
buffer[bindex] = buffer[bindex] | mask;
else
{
mask = ~mask;
buffer[bindex] = buffer[bindex] & mask;
}
}
static void set_abs_axis_value(struct wine_input_private *ext, int code, int value)
{
int index;
/* check for hatswitches */
if (code <= ABS_HAT3Y && code >= ABS_HAT0X)
{
index = code - ABS_HAT0X;
ext->hat_values[index] = value;
if ((code - ABS_HAT0X) % 2)
index--;
/* 8 1 2
* 7 0 3
* 6 5 4 */
if (ext->hat_values[index] == 0)
{
if (ext->hat_values[index+1] == 0)
value = 0;
else if (ext->hat_values[index+1] < 0)
value = 1;
else
value = 5;
}
else if (ext->hat_values[index] > 0)
{
if (ext->hat_values[index+1] == 0)
value = 3;
else if (ext->hat_values[index+1] < 0)
value = 2;
else
value = 4;
}
else
{
if (ext->hat_values[index+1] == 0)
value = 7;
else if (ext->hat_values[index+1] < 0)
value = 8;
else
value = 6;
}
ext->current_report_buffer[ext->hat_map[index]] = value;
}
else if (code < HID_ABS_MAX && ABS_TO_HID_MAP[code][0] != 0)
{
index = ext->abs_map[code];
*((DWORD*)&ext->current_report_buffer[index]) = LE_DWORD(value);
}
}
static void set_rel_axis_value(struct wine_input_private *ext, int code, int value)
{
int index;
if (code < HID_REL_MAX && REL_TO_HID_MAP[code][0] != 0)
{
index = ext->rel_map[code];
if (value > 127) value = 127;
if (value < -127) value = -127;
ext->current_report_buffer[index] = value;
}
}
static INT count_buttons(int device_fd, BYTE *map)
{
int i;
int button_count = 0;
BYTE keybits[(KEY_MAX+7)/8];
if (ioctl(device_fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits) == -1)
{
WARN("ioctl(EVIOCGBIT, EV_KEY) failed: %d %s\n", errno, strerror(errno));
return FALSE;
}
for (i = BTN_MISC; i < KEY_MAX; i++)
{
if (test_bit(keybits, i))
{
if (map) map[i] = button_count;
button_count++;
}
}
return button_count;
}
static INT count_abs_axis(int device_fd)
{
BYTE absbits[(ABS_MAX+7)/8];
int abs_count = 0;
int i;
if (ioctl(device_fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits) == -1)
{
WARN("ioctl(EVIOCGBIT, EV_ABS) failed: %d %s\n", errno, strerror(errno));
return 0;
}
for (i = 0; i < HID_ABS_MAX; i++)
if (test_bit(absbits, i) &&
(ABS_TO_HID_MAP[i][1] >= HID_USAGE_GENERIC_X &&
ABS_TO_HID_MAP[i][1] <= HID_USAGE_GENERIC_WHEEL))
abs_count++;
return abs_count;
}
static NTSTATUS build_report_descriptor(struct wine_input_private *ext, struct udev_device *dev)
{
struct input_absinfo abs_info[HID_ABS_MAX];
BYTE absbits[(ABS_MAX+7)/8];
BYTE relbits[(REL_MAX+7)/8];
USAGE_AND_PAGE usage;
INT i;
INT report_size;
INT button_count, abs_count, rel_count, hat_count;
const BYTE *device_usage = what_am_I(dev);
if (ioctl(ext->base.device_fd, EVIOCGBIT(EV_REL, sizeof(relbits)), relbits) == -1)
{
WARN("ioctl(EVIOCGBIT, EV_REL) failed: %d %s\n", errno, strerror(errno));
memset(relbits, 0, sizeof(relbits));
}
if (ioctl(ext->base.device_fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits) == -1)
{
WARN("ioctl(EVIOCGBIT, EV_ABS) failed: %d %s\n", errno, strerror(errno));
memset(absbits, 0, sizeof(absbits));
}
report_size = 0;
if (!hid_descriptor_begin(&ext->desc, device_usage[0], device_usage[1]))
return STATUS_NO_MEMORY;
abs_count = 0;
for (i = 0; i < HID_ABS_MAX; i++)
{
if (!test_bit(absbits, i)) continue;
ioctl(ext->base.device_fd, EVIOCGABS(i), abs_info + i);
if (!(usage.UsagePage = ABS_TO_HID_MAP[i][0])) continue;
if (!(usage.Usage = ABS_TO_HID_MAP[i][1])) continue;
if (!hid_descriptor_add_axes(&ext->desc, 1, usage.UsagePage, &usage.Usage, FALSE, 32,
LE_DWORD(abs_info[i].minimum), LE_DWORD(abs_info[i].maximum)))
return STATUS_NO_MEMORY;
ext->abs_map[i] = report_size;
report_size += 4;
abs_count++;
}
rel_count = 0;
for (i = 0; i < HID_REL_MAX; i++)
{
if (!test_bit(relbits, i)) continue;
if (!(usage.UsagePage = REL_TO_HID_MAP[i][0])) continue;
if (!(usage.Usage = REL_TO_HID_MAP[i][1])) continue;
if (!hid_descriptor_add_axes(&ext->desc, 1, usage.UsagePage, &usage.Usage, TRUE, 8,
0x81, 0x7f))
return STATUS_NO_MEMORY;
ext->rel_map[i] = report_size;
report_size++;
rel_count++;
}
/* For now lump all buttons just into incremental usages, Ignore Keys */
ext->button_start = report_size;
button_count = count_buttons(ext->base.device_fd, ext->button_map);
if (button_count)
{
if (!hid_descriptor_add_buttons(&ext->desc, HID_USAGE_PAGE_BUTTON, 1, button_count))
return STATUS_NO_MEMORY;
if (button_count % 8)
{
BYTE padding = 8 - (button_count % 8);
if (!hid_descriptor_add_padding(&ext->desc, padding))
return STATUS_NO_MEMORY;
}
report_size += (button_count + 7) / 8;
}
hat_count = 0;
for (i = ABS_HAT0X; i <=ABS_HAT3X; i+=2)
{
if (!test_bit(absbits, i)) continue;
ext->hat_map[i - ABS_HAT0X] = report_size;
ext->hat_values[i - ABS_HAT0X] = 0;
ext->hat_values[i - ABS_HAT0X + 1] = 0;
report_size++;
hat_count++;
}
if (hat_count)
{
if (!hid_descriptor_add_hatswitch(&ext->desc, hat_count))
return STATUS_NO_MEMORY;
}
if (!hid_descriptor_end(&ext->desc))
return STATUS_NO_MEMORY;
TRACE("Report will be %i bytes\n", report_size);
ext->buffer_length = report_size;
if (!(ext->current_report_buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, report_size)))
goto failed;
if (!(ext->last_report_buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, report_size)))
goto failed;
ext->report_state = FIRST;
/* Initialize axis in the report */
for (i = 0; i < HID_ABS_MAX; i++)
if (test_bit(absbits, i))
set_abs_axis_value(ext, i, abs_info[i].value);
return STATUS_SUCCESS;
failed:
HeapFree(GetProcessHeap(), 0, ext->current_report_buffer);
HeapFree(GetProcessHeap(), 0, ext->last_report_buffer);
hid_descriptor_free(&ext->desc);
return STATUS_NO_MEMORY;
}
static BOOL set_report_from_event(struct wine_input_private *ext, struct input_event *ie)
{
switch(ie->type)
{
#ifdef EV_SYN
case EV_SYN:
switch (ie->code)
{
case SYN_REPORT:
if (ext->report_state == NORMAL)
{
memcpy(ext->last_report_buffer, ext->current_report_buffer, ext->buffer_length);
return TRUE;
}
else
{
if (ext->report_state == DROPPED)
memcpy(ext->current_report_buffer, ext->last_report_buffer, ext->buffer_length);
ext->report_state = NORMAL;
}
break;
case SYN_DROPPED:
TRACE_(hid_report)("received SY_DROPPED\n");
ext->report_state = DROPPED;
}
return FALSE;
#endif
#ifdef EV_MSC
case EV_MSC:
return FALSE;
#endif
case EV_KEY:
set_button_value(ext->button_start * 8 + ext->button_map[ie->code], ie->value, ext->current_report_buffer);
return FALSE;
case EV_ABS:
set_abs_axis_value(ext, ie->code, ie->value);
return FALSE;
case EV_REL:
set_rel_axis_value(ext, ie->code, ie->value);
return FALSE;
default:
ERR("TODO: Process Report (%i, %i)\n",ie->type, ie->code);
return FALSE;
}
}
#endif
static void hidraw_device_destroy(struct unix_device *iface)
{
struct platform_private *private = impl_from_unix_device(iface);
close(private->device_fd);
udev_device_unref(private->udev_device);
}
static int udev_device_compare(struct unix_device *iface, void *platform_dev)
{
struct udev_device *dev1 = impl_from_unix_device(iface)->udev_device;
struct udev_device *dev2 = platform_dev;
return strcmp(udev_device_get_syspath(dev1), udev_device_get_syspath(dev2));
}
static DWORD CALLBACK device_report_thread(void *args);
static NTSTATUS hidraw_device_start(struct unix_device *iface, DEVICE_OBJECT *device)
{
struct platform_private *private = impl_from_unix_device(iface);
if (pipe(private->control_pipe) != 0)
{
ERR("Control pipe creation failed\n");
return STATUS_UNSUCCESSFUL;
}
private->report_thread = CreateThread(NULL, 0, device_report_thread, device, 0, NULL);
if (!private->report_thread)
{
ERR("Unable to create device report thread\n");
close(private->control_pipe[0]);
close(private->control_pipe[1]);
return STATUS_UNSUCCESSFUL;
}
return STATUS_SUCCESS;
}
static void hidraw_device_stop(struct unix_device *iface)
{
struct platform_private *private = impl_from_unix_device(iface);
EnterCriticalSection(&udev_cs);
list_remove(&private->unix_device.entry);
LeaveCriticalSection(&udev_cs);
if (private->report_thread)
{
write(private->control_pipe[1], "q", 1);
WaitForSingleObject(private->report_thread, INFINITE);
close(private->control_pipe[0]);
close(private->control_pipe[1]);
CloseHandle(private->report_thread);
}
}
static NTSTATUS hidraw_device_get_report_descriptor(struct unix_device *iface, BYTE *buffer,
DWORD length, DWORD *out_length)
{
#ifdef HAVE_LINUX_HIDRAW_H
struct hidraw_report_descriptor descriptor;
struct platform_private *private = impl_from_unix_device(iface);
if (ioctl(private->device_fd, HIDIOCGRDESCSIZE, &descriptor.size) == -1)
{
WARN("ioctl(HIDIOCGRDESCSIZE) failed: %d %s\n", errno, strerror(errno));
return STATUS_UNSUCCESSFUL;
}
*out_length = descriptor.size;
if (length < descriptor.size)
return STATUS_BUFFER_TOO_SMALL;
if (!descriptor.size)
return STATUS_SUCCESS;
if (ioctl(private->device_fd, HIDIOCGRDESC, &descriptor) == -1)
{
WARN("ioctl(HIDIOCGRDESC) failed: %d %s\n", errno, strerror(errno));
return STATUS_UNSUCCESSFUL;
}
memcpy(buffer, descriptor.value, descriptor.size);
return STATUS_SUCCESS;
#else
return STATUS_NOT_IMPLEMENTED;
#endif
}
static DWORD CALLBACK device_report_thread(void *args)
{
DEVICE_OBJECT *device = (DEVICE_OBJECT*)args;
struct platform_private *private = impl_from_DEVICE_OBJECT(device);
struct pollfd plfds[2];
plfds[0].fd = private->device_fd;
plfds[0].events = POLLIN;
plfds[0].revents = 0;
plfds[1].fd = private->control_pipe[0];
plfds[1].events = POLLIN;
plfds[1].revents = 0;
while (1)
{
int size;
BYTE report_buffer[1024];
if (poll(plfds, 2, -1) <= 0) continue;
if (plfds[1].revents)
break;
size = read(plfds[0].fd, report_buffer, sizeof(report_buffer));
if (size == -1)
TRACE_(hid_report)("Read failed. Likely an unplugged device %d %s\n", errno, strerror(errno));
else if (size == 0)
TRACE_(hid_report)("Failed to read report\n");
else
process_hid_report(device, report_buffer, size);
}
return 0;
}
static void hidraw_device_set_output_report(struct unix_device *iface, HID_XFER_PACKET *packet, IO_STATUS_BLOCK *io)
{
struct platform_private *ext = impl_from_unix_device(iface);
ULONG length = packet->reportBufferLen;
BYTE buffer[8192];
int count = 0;
if ((buffer[0] = packet->reportId))
count = write(ext->device_fd, packet->reportBuffer, length);
else if (length > sizeof(buffer) - 1)
ERR_(hid_report)("id %d length %u >= 8192, cannot write\n", packet->reportId, length);
else
{
memcpy(buffer + 1, packet->reportBuffer, length);
count = write(ext->device_fd, buffer, length + 1);
}
if (count > 0)
{
io->Information = count;
io->Status = STATUS_SUCCESS;
}
else
{
ERR_(hid_report)("id %d write failed error: %d %s\n", packet->reportId, errno, strerror(errno));
io->Information = 0;
io->Status = STATUS_UNSUCCESSFUL;
}
}
static void hidraw_device_get_feature_report(struct unix_device *iface, HID_XFER_PACKET *packet,
IO_STATUS_BLOCK *io)
{
#if defined(HAVE_LINUX_HIDRAW_H) && defined(HIDIOCGFEATURE)
struct platform_private *ext = impl_from_unix_device(iface);
ULONG length = packet->reportBufferLen;
BYTE buffer[8192];
int count = 0;
if ((buffer[0] = packet->reportId) && length <= 0x1fff)
count = ioctl(ext->device_fd, HIDIOCGFEATURE(length), packet->reportBuffer);
else if (length > sizeof(buffer) - 1)
ERR_(hid_report)("id %d length %u >= 8192, cannot read\n", packet->reportId, length);
else
{
count = ioctl(ext->device_fd, HIDIOCGFEATURE(length + 1), buffer);
memcpy(packet->reportBuffer, buffer + 1, length);
}
if (count > 0)
{
io->Information = count;
io->Status = STATUS_SUCCESS;
}
else
{
ERR_(hid_report)("id %d read failed, error: %d %s\n", packet->reportId, errno, strerror(errno));
io->Information = 0;
io->Status = STATUS_UNSUCCESSFUL;
}
#else
io->Information = 0;
io->Status = STATUS_NOT_IMPLEMENTED;
#endif
}
static void hidraw_device_set_feature_report(struct unix_device *iface, HID_XFER_PACKET *packet,
IO_STATUS_BLOCK *io)
{
#if defined(HAVE_LINUX_HIDRAW_H) && defined(HIDIOCSFEATURE)
struct platform_private *ext = impl_from_unix_device(iface);
ULONG length = packet->reportBufferLen;
BYTE buffer[8192];
int count = 0;
if ((buffer[0] = packet->reportId) && length <= 0x1fff)
count = ioctl(ext->device_fd, HIDIOCSFEATURE(length), packet->reportBuffer);
else if (length > sizeof(buffer) - 1)
ERR_(hid_report)("id %d length %u >= 8192, cannot write\n", packet->reportId, length);
else
{
memcpy(buffer + 1, packet->reportBuffer, length);
count = ioctl(ext->device_fd, HIDIOCSFEATURE(length + 1), buffer);
}
if (count > 0)
{
io->Information = count;
io->Status = STATUS_SUCCESS;
}
else
{
ERR_(hid_report)("id %d write failed, error: %d %s\n", packet->reportId, errno, strerror(errno));
io->Information = 0;
io->Status = STATUS_UNSUCCESSFUL;
}
#else
io->Information = 0;
io->Status = STATUS_NOT_IMPLEMENTED;
#endif
}
static const struct unix_device_vtbl hidraw_device_vtbl =
{
hidraw_device_destroy,
udev_device_compare,
hidraw_device_start,
hidraw_device_stop,
hidraw_device_get_report_descriptor,
hidraw_device_set_output_report,
hidraw_device_get_feature_report,
hidraw_device_set_feature_report,
};
#ifdef HAS_PROPER_INPUT_HEADER
static inline struct wine_input_private *input_impl_from_unix_device(struct unix_device *iface)
{
return CONTAINING_RECORD(impl_from_unix_device(iface), struct wine_input_private, base);
}
static inline struct wine_input_private *input_impl_from_DEVICE_OBJECT(DEVICE_OBJECT *device)
{
return CONTAINING_RECORD(impl_from_DEVICE_OBJECT(device), struct wine_input_private, base);
}
static void lnxev_device_destroy(struct unix_device *iface)
{
struct wine_input_private *ext = input_impl_from_unix_device(iface);
HeapFree(GetProcessHeap(), 0, ext->current_report_buffer);
HeapFree(GetProcessHeap(), 0, ext->last_report_buffer);
hid_descriptor_free(&ext->desc);
close(ext->base.device_fd);
udev_device_unref(ext->base.udev_device);
}
static DWORD CALLBACK lnxev_device_report_thread(void *args);
static NTSTATUS lnxev_device_start(struct unix_device *iface, DEVICE_OBJECT *device)
{
struct wine_input_private *ext = input_impl_from_unix_device(iface);
NTSTATUS status;
if ((status = build_report_descriptor(ext, ext->base.udev_device)))
return status;
if (pipe(ext->base.control_pipe) != 0)
{
ERR("Control pipe creation failed\n");
return STATUS_UNSUCCESSFUL;
}
ext->base.report_thread = CreateThread(NULL, 0, lnxev_device_report_thread, device, 0, NULL);
if (!ext->base.report_thread)
{
ERR("Unable to create device report thread\n");
close(ext->base.control_pipe[0]);
close(ext->base.control_pipe[1]);
return STATUS_UNSUCCESSFUL;
}
return STATUS_SUCCESS;
}
static void lnxev_device_stop(struct unix_device *iface)
{
struct wine_input_private *ext = input_impl_from_unix_device(iface);
EnterCriticalSection(&udev_cs);
list_remove(&ext->base.unix_device.entry);
LeaveCriticalSection(&udev_cs);
if (ext->base.report_thread)
{
write(ext->base.control_pipe[1], "q", 1);
WaitForSingleObject(ext->base.report_thread, INFINITE);
close(ext->base.control_pipe[0]);
close(ext->base.control_pipe[1]);
CloseHandle(ext->base.report_thread);
}
}
static NTSTATUS lnxev_device_get_report_descriptor(struct unix_device *iface, BYTE *buffer,
DWORD length, DWORD *out_length)
{
struct wine_input_private *ext = input_impl_from_unix_device(iface);
*out_length = ext->desc.size;
if (length < ext->desc.size) return STATUS_BUFFER_TOO_SMALL;
memcpy(buffer, ext->desc.data, ext->desc.size);
return STATUS_SUCCESS;
}
static DWORD CALLBACK lnxev_device_report_thread(void *args)
{
DEVICE_OBJECT *device = (DEVICE_OBJECT*)args;
struct wine_input_private *private = input_impl_from_DEVICE_OBJECT(device);
struct pollfd plfds[2];
plfds[0].fd = private->base.device_fd;
plfds[0].events = POLLIN;
plfds[0].revents = 0;
plfds[1].fd = private->base.control_pipe[0];
plfds[1].events = POLLIN;
plfds[1].revents = 0;
while (1)
{
int size;
struct input_event ie;
if (poll(plfds, 2, -1) <= 0) continue;
if (plfds[1].revents || !private->current_report_buffer || private->buffer_length == 0)
break;
size = read(plfds[0].fd, &ie, sizeof(ie));
if (size == -1)
TRACE_(hid_report)("Read failed. Likely an unplugged device\n");
else if (size == 0)
TRACE_(hid_report)("Failed to read report\n");
else if (set_report_from_event(private, &ie))
process_hid_report(device, private->current_report_buffer, private->buffer_length);
}
return 0;
}
static void lnxev_device_set_output_report(struct unix_device *iface, HID_XFER_PACKET *packet, IO_STATUS_BLOCK *io)
{
io->Information = 0;
io->Status = STATUS_NOT_IMPLEMENTED;
}
static void lnxev_device_get_feature_report(struct unix_device *iface, HID_XFER_PACKET *packet, IO_STATUS_BLOCK *io)
{
io->Information = 0;
io->Status = STATUS_NOT_IMPLEMENTED;
}
static void lnxev_device_set_feature_report(struct unix_device *iface, HID_XFER_PACKET *packet, IO_STATUS_BLOCK *io)
{
io->Information = 0;
io->Status = STATUS_NOT_IMPLEMENTED;
}
static const struct unix_device_vtbl lnxev_device_vtbl =
{
lnxev_device_destroy,
udev_device_compare,
lnxev_device_start,
lnxev_device_stop,
lnxev_device_get_report_descriptor,
lnxev_device_set_output_report,
lnxev_device_get_feature_report,
lnxev_device_set_feature_report,
};
#endif
static void get_device_subsystem_info(struct udev_device *dev, char const *subsystem, struct device_desc *desc)
{
struct udev_device *parent = NULL;
const char *ptr, *next, *tmp;
DWORD bus = 0;
if (!(parent = udev_device_get_parent_with_subsystem_devtype(dev, subsystem, NULL))) return;
if ((next = udev_device_get_sysattr_value(parent, "uevent")))
{
while ((ptr = next) && *ptr)
{
if ((next = strchr(next, '\n'))) next += 1;
else next = ptr + strlen(ptr);
TRACE("%s uevent %s\n", subsystem, debugstr_an(ptr, next - ptr - 1));
if (!strncmp(ptr, "HID_UNIQ=", 9))
{
if (desc->serialnumber[0]) continue;
sscanf(ptr, "HID_UNIQ=%256s\n", desc->serialnumber);
}
if (!strncmp(ptr, "HID_PHYS=", 9) || !strncmp(ptr, "PHYS=\"", 6))
{
if (!(tmp = strstr(ptr, "/input")) || tmp >= next) continue;
if (desc->input == -1) sscanf(tmp, "/input%d\n", &desc->input);
}
if (!strncmp(ptr, "HID_ID=", 7))
{
if (bus || desc->vid || desc->pid) continue;
sscanf(ptr, "HID_ID=%x:%x:%x\n", &bus, &desc->vid, &desc->pid);
}
if (!strncmp(ptr, "PRODUCT=", 8))
{
if (desc->version) continue;
if (!strcmp(subsystem, "usb"))
sscanf(ptr, "PRODUCT=%x/%x/%x\n", &desc->vid, &desc->pid, &desc->version);
else
sscanf(ptr, "PRODUCT=%x/%x/%x/%x\n", &bus, &desc->vid, &desc->pid, &desc->version);
}
}
}
if (!desc->manufacturer[0] && (tmp = udev_device_get_sysattr_value(dev, "manufacturer")))
lstrcpynA(desc->manufacturer, tmp, sizeof(desc->manufacturer));
if (!desc->product[0] && (tmp = udev_device_get_sysattr_value(dev, "product")))
lstrcpynA(desc->product, tmp, sizeof(desc->product));
if (!desc->serialnumber[0] && (tmp = udev_device_get_sysattr_value(dev, "serial")))
lstrcpynA(desc->serialnumber, tmp, sizeof(desc->serialnumber));
}
static void udev_add_device(struct udev_device *dev)
{
struct device_desc desc =
{
.input = -1,
};
struct platform_private *private;
const char *subsystem;
const char *devnode;
int fd;
if (!(devnode = udev_device_get_devnode(dev)))
return;
if ((fd = open(devnode, O_RDWR)) == -1)
{
WARN("Unable to open udev device %s: %s\n", debugstr_a(devnode), strerror(errno));
return;
}
TRACE("udev %s syspath %s\n", debugstr_a(devnode), udev_device_get_syspath(dev));
#ifdef HAS_PROPER_INPUT_HEADER
EnterCriticalSection(&udev_cs);
private = find_device_from_syspath(get_device_syspath(dev));
LeaveCriticalSection(&udev_cs);
if (private)
{
TRACE("duplicate device found, not adding the new one\n");
close(fd);
return;
}
#endif
get_device_subsystem_info(dev, "hid", &desc);
get_device_subsystem_info(dev, "input", &desc);
get_device_subsystem_info(dev, "usb", &desc);
subsystem = udev_device_get_subsystem(dev);
if (!strcmp(subsystem, "hidraw"))
{
desc.busid = hidraw_busidW;
if (!desc.manufacturer[0]) strcpy(desc.manufacturer, "hidraw");
#ifdef HAVE_LINUX_HIDRAW_H
if (!desc.product[0] && ioctl(fd, HIDIOCGRAWNAME(sizeof(desc.product) - 1), desc.product) < 0)
desc.product[0] = 0;
#endif
}
#ifdef HAS_PROPER_INPUT_HEADER
else if (!strcmp(subsystem, "input"))
{
struct input_id device_id = {0};
desc.busid = lnxev_busidW;
if (ioctl(fd, EVIOCGID, &device_id) < 0)
WARN("ioctl(EVIOCGID) failed: %d %s\n", errno, strerror(errno));
else
{
desc.vid = device_id.vendor;
desc.pid = device_id.product;
desc.version = device_id.version;
}
if (!desc.manufacturer[0]) strcpy(desc.manufacturer, "evdev");
if (!desc.product[0] && ioctl(fd, EVIOCGNAME(sizeof(desc.product) - 1), desc.product) <= 0)
desc.product[0] = 0;
if (!desc.serialnumber[0] && ioctl(fd, EVIOCGUNIQ(sizeof(desc.serialnumber)), desc.serialnumber) < 0)
desc.serialnumber[0] = 0;
}
#endif
if (!desc.serialnumber[0]) strcpy(desc.serialnumber, "0000");
if (is_xbox_gamepad(desc.vid, desc.pid))
desc.is_gamepad = TRUE;
#ifdef HAS_PROPER_INPUT_HEADER
else
{
int axes=0, buttons=0;
axes = count_abs_axis(fd);
buttons = count_buttons(fd, NULL);
desc.is_gamepad = (axes == 6 && buttons >= 14);
}
#endif
TRACE("dev %p, node %s, desc %s.\n", dev, debugstr_a(devnode), debugstr_device_desc(&desc));
if (strcmp(subsystem, "hidraw") == 0)
{
if (!(private = unix_device_create(&hidraw_device_vtbl, sizeof(struct platform_private)))) return;
EnterCriticalSection(&udev_cs);
list_add_tail(&device_list, &private->unix_device.entry);
LeaveCriticalSection(&udev_cs);
private->udev_device = udev_device_ref(dev);
private->device_fd = fd;
bus_event_queue_device_created(&event_queue, &private->unix_device, &desc);
}
#ifdef HAS_PROPER_INPUT_HEADER
else if (strcmp(subsystem, "input") == 0)
{
if (!(private = unix_device_create(&lnxev_device_vtbl, sizeof(struct wine_input_private)))) return;
EnterCriticalSection(&udev_cs);
list_add_tail(&device_list, &private->unix_device.entry);
LeaveCriticalSection(&udev_cs);
private->udev_device = udev_device_ref(dev);
private->device_fd = fd;
bus_event_queue_device_created(&event_queue, &private->unix_device, &desc);
}
#endif
}
static void try_remove_device(struct udev_device *dev)
{
bus_event_queue_device_removed(&event_queue, hidraw_busidW, dev);
#ifdef HAS_PROPER_INPUT_HEADER
bus_event_queue_device_removed(&event_queue, lnxev_busidW, dev);
#endif
}
static void build_initial_deviceset(void)
{
struct udev_enumerate *enumerate;
struct udev_list_entry *devices, *dev_list_entry;
enumerate = udev_enumerate_new(udev_context);
if (!enumerate)
{
WARN("Unable to create udev enumeration object\n");
return;
}
if (!options.disable_hidraw)
if (udev_enumerate_add_match_subsystem(enumerate, "hidraw") < 0)
WARN("Failed to add subsystem 'hidraw' to enumeration\n");
#ifdef HAS_PROPER_INPUT_HEADER
if (!options.disable_input)
{
if (udev_enumerate_add_match_subsystem(enumerate, "input") < 0)
WARN("Failed to add subsystem 'input' to enumeration\n");
}
#endif
if (udev_enumerate_scan_devices(enumerate) < 0)
WARN("Enumeration scan failed\n");
devices = udev_enumerate_get_list_entry(enumerate);
udev_list_entry_foreach(dev_list_entry, devices)
{
struct udev_device *dev;
const char *path;
path = udev_list_entry_get_name(dev_list_entry);
if ((dev = udev_device_new_from_syspath(udev_context, path)))
{
udev_add_device(dev);
udev_device_unref(dev);
}
}
udev_enumerate_unref(enumerate);
}
static struct udev_monitor *create_monitor(int *fd)
{
struct udev_monitor *monitor;
int systems = 0;
monitor = udev_monitor_new_from_netlink(udev_context, "udev");
if (!monitor)
{
WARN("Unable to get udev monitor object\n");
return NULL;
}
if (!options.disable_hidraw)
{
if (udev_monitor_filter_add_match_subsystem_devtype(monitor, "hidraw", NULL) < 0)
WARN("Failed to add 'hidraw' subsystem to monitor\n");
else
systems++;
}
#ifdef HAS_PROPER_INPUT_HEADER
if (!options.disable_input)
{
if (udev_monitor_filter_add_match_subsystem_devtype(monitor, "input", NULL) < 0)
WARN("Failed to add 'input' subsystem to monitor\n");
else
systems++;
}
#endif
if (systems == 0)
{
WARN("No subsystems added to monitor\n");
goto error;
}
if (udev_monitor_enable_receiving(monitor) < 0)
goto error;
if ((*fd = udev_monitor_get_fd(monitor)) >= 0)
return monitor;
error:
WARN("Failed to start monitoring\n");
udev_monitor_unref(monitor);
return NULL;
}
static void process_monitor_event(struct udev_monitor *monitor)
{
struct udev_device *dev;
const char *action;
dev = udev_monitor_receive_device(monitor);
if (!dev)
{
FIXME("Failed to get device that has changed\n");
return;
}
action = udev_device_get_action(dev);
TRACE("Received action %s for udev device %s\n", debugstr_a(action),
debugstr_a(udev_device_get_devnode(dev)));
if (!action)
WARN("No action received\n");
else if (strcmp(action, "add") == 0)
udev_add_device(dev);
else if (strcmp(action, "remove") == 0)
try_remove_device(dev);
else
WARN("Unhandled action %s\n", debugstr_a(action));
udev_device_unref(dev);
}
NTSTATUS udev_bus_init(void *args)
{
TRACE("args %p\n", args);
options = *(struct udev_bus_options *)args;
if (pipe(deviceloop_control) != 0)
{
ERR("UDEV control pipe creation failed\n");
return STATUS_UNSUCCESSFUL;
}
if (!(udev_context = udev_new()))
{
ERR("UDEV object creation failed\n");
goto error;
}
if (!(udev_monitor = create_monitor(&udev_monitor_fd)))
{
ERR("UDEV monitor creation failed\n");
goto error;
}
build_initial_deviceset();
return STATUS_SUCCESS;
error:
if (udev_context) udev_unref(udev_context);
udev_context = NULL;
close(deviceloop_control[0]);
close(deviceloop_control[1]);
return STATUS_UNSUCCESSFUL;
}
NTSTATUS udev_bus_wait(void *args)
{
struct bus_event *result = args;
struct pollfd pfd[2];
pfd[0].fd = udev_monitor_fd;
pfd[0].events = POLLIN;
pfd[0].revents = 0;
pfd[1].fd = deviceloop_control[0];
pfd[1].events = POLLIN;
pfd[1].revents = 0;
while (1)
{
if (bus_event_queue_pop(&event_queue, result)) return STATUS_PENDING;
if (poll(pfd, 2, -1) <= 0) continue;
if (pfd[1].revents) break;
process_monitor_event(udev_monitor);
}
TRACE("UDEV main loop exiting\n");
bus_event_queue_destroy(&event_queue);
udev_monitor_unref(udev_monitor);
udev_unref(udev_context);
udev_context = NULL;
close(deviceloop_control[0]);
close(deviceloop_control[1]);
return STATUS_SUCCESS;
}
NTSTATUS udev_bus_stop(void *args)
{
if (!udev_context) return STATUS_SUCCESS;
write(deviceloop_control[1], "q", 1);
return STATUS_SUCCESS;
}
#else
NTSTATUS udev_bus_init(void *args)
{
WARN("UDEV support not compiled in!\n");
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS udev_bus_wait(void *args)
{
WARN("UDEV support not compiled in!\n");
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS udev_bus_stop(void *args)
{
WARN("UDEV support not compiled in!\n");
return STATUS_NOT_IMPLEMENTED;
}
#endif /* HAVE_UDEV */
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