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https://github.com/X11Libre/xf86-input-evdev.git
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eaf202531f
There is currently no mapping between XI devices and physical devices other than what can be extracted by parsing the Xorg logfile. Add new property "Device Node" to the driver to export the open device file. Server 1.11 and later standardises on this property name. The client is responsible for detecting if the device is on the same host and converting the data into a more useful format (e.g. sysfs path). Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
261 lines
9.5 KiB
C
261 lines
9.5 KiB
C
/*
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* Copyright © 2004-2008 Red Hat, Inc.
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* Copyright © 2008 University of South Australia
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of Red Hat
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* not be used in advertising or publicity pertaining to distribution
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* of the software without specific, written prior permission. Red
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* Hat makes no representations about the suitability of this software
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* for any purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
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* NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Authors:
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* Kristian Høgsberg (krh@redhat.com)
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* Adam Jackson (ajax@redhat.com)
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* Peter Hutterer (peter@cs.unisa.edu.au)
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* Oliver McFadden (oliver.mcfadden@nokia.com)
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*/
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#ifndef EVDEV_H
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#define EVDEV_H
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#include <linux/input.h>
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#include <linux/types.h>
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#include <xorg-server.h>
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#include <xf86Xinput.h>
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#include <xf86_OSproc.h>
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#include <xkbstr.h>
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#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) * 100 + GET_ABI_MINOR(ABI_XINPUT_VERSION) < 1202
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#error "Need X server input ABI version 12.2 or greater"
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#endif
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#ifndef EV_CNT /* linux 2.6.23 kernels and earlier lack _CNT defines */
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#define EV_CNT (EV_MAX+1)
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#endif
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#ifndef KEY_CNT
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#define KEY_CNT (KEY_MAX+1)
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#endif
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#ifndef REL_CNT
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#define REL_CNT (REL_MAX+1)
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#endif
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#ifndef ABS_CNT
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#define ABS_CNT (ABS_MAX+1)
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#endif
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#ifndef LED_CNT
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#define LED_CNT (LED_MAX+1)
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#endif
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#define EVDEV_MAXBUTTONS 32
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#define EVDEV_MAXQUEUE 32
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/* evdev flags */
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#define EVDEV_KEYBOARD_EVENTS (1 << 0)
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#define EVDEV_BUTTON_EVENTS (1 << 1)
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#define EVDEV_RELATIVE_EVENTS (1 << 2)
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#define EVDEV_ABSOLUTE_EVENTS (1 << 3)
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#define EVDEV_TOUCHPAD (1 << 4)
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#define EVDEV_INITIALIZED (1 << 5) /* WheelInit etc. called already? */
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#define EVDEV_TOUCHSCREEN (1 << 6)
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#define EVDEV_CALIBRATED (1 << 7) /* run-time calibrated? */
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#define EVDEV_TABLET (1 << 8) /* device looks like a tablet? */
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#define EVDEV_UNIGNORE_ABSOLUTE (1 << 9) /* explicitly unignore abs axes */
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#define EVDEV_UNIGNORE_RELATIVE (1 << 10) /* explicitly unignore rel axes */
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#define EVDEV_RELATIVE_MODE (1 << 11) /* Force relative events for devices with absolute axes */
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#ifndef MAX_VALUATORS
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#define MAX_VALUATORS 36
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#endif
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#ifndef XI_PROP_DEVICE_NODE
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#define XI_PROP_DEVICE_NODE "Device Node"
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#endif
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#define LONG_BITS (sizeof(long) * 8)
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/* Number of longs needed to hold the given number of bits */
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#define NLONGS(x) (((x) + LONG_BITS - 1) / LONG_BITS)
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/* Function key mode */
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enum fkeymode {
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FKEYMODE_UNKNOWN = 0,
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FKEYMODE_FKEYS, /* function keys send function keys */
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FKEYMODE_MMKEYS, /* function keys send multimedia keys */
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};
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/* axis specific data for wheel emulation */
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typedef struct {
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int up_button;
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int down_button;
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int traveled_distance;
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} WheelAxis, *WheelAxisPtr;
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/* Event queue used to defer keyboard/button events until EV_SYN time. */
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typedef struct {
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enum {
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EV_QUEUE_KEY, /* xf86PostKeyboardEvent() */
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EV_QUEUE_BTN, /* xf86PostButtonEvent() */
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EV_QUEUE_PROXIMITY, /* xf86PostProximityEvent() */
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} type;
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int key; /* May be either a key code or button number. */
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int val; /* State of the key/button; pressed or released. */
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} EventQueueRec, *EventQueuePtr;
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typedef struct {
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unsigned short id_vendor;
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unsigned short id_product;
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char *device;
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int grabDevice; /* grab the event device? */
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int num_vals; /* number of valuators */
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int axis_map[max(ABS_CNT, REL_CNT)]; /* Map evdev <axis> to index */
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ValuatorMask *vals; /* new values coming in */
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ValuatorMask *old_vals; /* old values for calculating relative motion */
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ValuatorMask *prox; /* last values set while not in proximity */
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int flags;
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int in_proximity; /* device in proximity */
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int use_proximity; /* using the proximity bit? */
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int num_buttons; /* number of buttons */
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BOOL swap_axes;
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BOOL invert_x;
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BOOL invert_y;
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int delta[REL_CNT];
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unsigned int abs_queued, rel_queued, prox_queued;
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/* XKB stuff has to be per-device rather than per-driver */
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XkbRMLVOSet rmlvo;
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/* Middle mouse button emulation */
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struct {
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BOOL enabled;
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BOOL pending; /* timer waiting? */
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int buttonstate; /* phys. button state */
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int state; /* state machine (see bt3emu.c) */
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Time expires; /* time of expiry */
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Time timeout;
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} emulateMB;
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/* Third mouse button emulation */
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struct emulate3B {
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BOOL enabled;
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BOOL state; /* current state */
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Time timeout; /* timeout until third button press */
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int buttonstate; /* phys. button state */
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int button; /* phys button to emit */
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int threshold; /* move threshold in dev coords */
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OsTimerPtr timer;
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int delta[2]; /* delta x/y, accumulating */
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int startpos[2]; /* starting pos for abs devices */
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int flags; /* remember if we had rel or abs movement */
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} emulate3B;
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struct {
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int meta; /* meta key to lock any button */
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BOOL meta_state; /* meta_button state */
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unsigned int lock_pair[EVDEV_MAXBUTTONS]; /* specify a meta/lock pair */
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BOOL lock_state[EVDEV_MAXBUTTONS]; /* state of any locked buttons */
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} dragLock;
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struct {
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BOOL enabled;
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int button;
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int button_state;
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int inertia;
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WheelAxis X;
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WheelAxis Y;
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Time expires; /* time of expiry */
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Time timeout;
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} emulateWheel;
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/* run-time calibration */
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struct {
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int min_x;
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int max_x;
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int min_y;
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int max_y;
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} calibration;
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unsigned char btnmap[32]; /* config-file specified button mapping */
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int reopen_attempts; /* max attempts to re-open after read failure */
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int reopen_left; /* number of attempts left to re-open the device */
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OsTimerPtr reopen_timer;
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/* Cached info from device. */
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char name[1024];
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unsigned long bitmask[NLONGS(EV_CNT)];
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unsigned long key_bitmask[NLONGS(KEY_CNT)];
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unsigned long rel_bitmask[NLONGS(REL_CNT)];
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unsigned long abs_bitmask[NLONGS(ABS_CNT)];
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unsigned long led_bitmask[NLONGS(LED_CNT)];
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struct input_absinfo absinfo[ABS_CNT];
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/* minor/major number */
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dev_t min_maj;
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/* Event queue used to defer keyboard/button events until EV_SYN time. */
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int num_queue;
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EventQueueRec queue[EVDEV_MAXQUEUE];
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enum fkeymode fkeymode;
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} EvdevRec, *EvdevPtr;
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/* Event posting functions */
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void EvdevQueueKbdEvent(InputInfoPtr pInfo, struct input_event *ev, int value);
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void EvdevQueueButtonEvent(InputInfoPtr pInfo, int button, int value);
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void EvdevQueueProximityEvent(InputInfoPtr pInfo, int value);
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void EvdevPostButtonEvent(InputInfoPtr pInfo, int button, int value);
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void EvdevQueueButtonClicks(InputInfoPtr pInfo, int button, int count);
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void EvdevPostRelativeMotionEvents(InputInfoPtr pInfo, int num_v, int first_v,
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int v[MAX_VALUATORS]);
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void EvdevPostAbsoluteMotionEvents(InputInfoPtr pInfo, int num_v, int first_v,
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int v[MAX_VALUATORS]);
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unsigned int EvdevUtilButtonEventToButtonNumber(EvdevPtr pEvdev, int code);
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/* Middle Button emulation */
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int EvdevMBEmuTimer(InputInfoPtr);
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BOOL EvdevMBEmuFilterEvent(InputInfoPtr, int, BOOL);
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void EvdevMBEmuWakeupHandler(pointer, int, pointer);
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void EvdevMBEmuBlockHandler(pointer, struct timeval**, pointer);
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void EvdevMBEmuPreInit(InputInfoPtr);
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void EvdevMBEmuOn(InputInfoPtr);
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void EvdevMBEmuFinalize(InputInfoPtr);
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/* Third button emulation */
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CARD32 Evdev3BEmuTimer(OsTimerPtr timer, CARD32 time, pointer arg);
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BOOL Evdev3BEmuFilterEvent(InputInfoPtr, int, BOOL);
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void Evdev3BEmuPreInit(InputInfoPtr pInfo);
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void Evdev3BEmuPreInit(InputInfoPtr);
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void Evdev3BEmuOn(InputInfoPtr);
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void Evdev3BEmuFinalize(InputInfoPtr);
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void Evdev3BEmuProcessRelMotion(InputInfoPtr pInfo, int dx, int dy);
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void Evdev3BEmuProcessAbsMotion(InputInfoPtr pInfo, ValuatorMask *vals);
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/* Mouse Wheel emulation */
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void EvdevWheelEmuPreInit(InputInfoPtr pInfo);
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BOOL EvdevWheelEmuFilterButton(InputInfoPtr pInfo, unsigned int button, int value);
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BOOL EvdevWheelEmuFilterMotion(InputInfoPtr pInfo, struct input_event *pEv);
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/* Draglock code */
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void EvdevDragLockPreInit(InputInfoPtr pInfo);
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BOOL EvdevDragLockFilterEvent(InputInfoPtr pInfo, unsigned int button, int value);
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void EvdevMBEmuInitProperty(DeviceIntPtr);
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void Evdev3BEmuInitProperty(DeviceIntPtr);
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void EvdevWheelEmuInitProperty(DeviceIntPtr);
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void EvdevDragLockInitProperty(DeviceIntPtr);
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void EvdevAppleInitProperty(DeviceIntPtr);
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#endif
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