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libtdevnc/x11vnc/uinput.c

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/*
Copyright (C) 2002-2010 Karl J. Runge <runge@karlrunge.com>
All rights reserved.
This file is part of x11vnc.
x11vnc is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at
your option) any later version.
x11vnc 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with x11vnc; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA
or see <http://www.gnu.org/licenses/>.
In addition, as a special exception, Karl J. Runge
gives permission to link the code of its release of x11vnc with the
OpenSSL project's "OpenSSL" library (or with modified versions of it
that use the same license as the "OpenSSL" library), and distribute
the linked executables. You must obey the GNU General Public License
in all respects for all of the code used other than "OpenSSL". If you
modify this file, you may extend this exception to your version of the
file, but you are not obligated to do so. If you do not wish to do
so, delete this exception statement from your version.
*/
/* -- uinput.c -- */
#include "x11vnc.h"
#include "cleanup.h"
#include "scan.h"
#include "xinerama.h"
#include "screen.h"
#include "pointer.h"
#include "keyboard.h"
#include "allowed_input_t.h"
#if LIBVNCSERVER_HAVE_SYS_IOCTL_H
#if LIBVNCSERVER_HAVE_LINUX_INPUT_H
#if LIBVNCSERVER_HAVE_LINUX_UINPUT_H
#define UINPUT_OK
#endif
#endif
#endif
#ifdef UINPUT_OK
#include <sys/ioctl.h>
#include <linux/input.h>
#include <linux/uinput.h>
#if !defined(EV_SYN) || !defined(SYN_REPORT)
#undef UINPUT_OK
#endif
#endif
int check_uinput(void);
int initialize_uinput(void);
int set_uinput_accel(char *str);
int set_uinput_thresh(char *str);
void set_uinput_reset(int ms);
void set_uinput_always(int);
void set_uinput_touchscreen(int);
void set_uinput_abs(int);
char *get_uinput_accel();
char *get_uinput_thresh();
int get_uinput_reset();
int get_uinput_always();
int get_uinput_touchscreen();
int get_uinput_abs();
void parse_uinput_str(char *str);
void uinput_pointer_command(int mask, int x, int y, rfbClientPtr client);
void uinput_key_command(int down, int keysym, rfbClientPtr client);
static void init_key_tracker(void);
static int mod_is_down(void);
static int key_is_down(void);
static void set_uinput_accel_xy(double fx, double fy);
static void shutdown_uinput(void);
static void ptr_move(int dx, int dy);
static void ptr_rel(int dx, int dy);
static void button_click(int down, int btn);
static int lookup_code(int keysym);
static int fd = -1;
static int db = 0;
static int bmask = 0;
static char *injectable = NULL;
static char *uinput_dev = NULL;
static int uinput_touchscreen = 0;
static int uinput_abs = 0;
static int abs_x = 0, abs_y = 0;
static char *devs[] = {
"/dev/misc/uinput",
"/dev/input/uinput",
"/dev/uinput",
NULL
};
/*
* User may need to do:
modprode uinput
mknod /dev/input/uinput c 10 223
*/
int check_uinput(void) {
#ifndef UINPUT_OK
return 0;
#else
int i;
if (UT.release) {
int maj, min;
/* guard against linux 2.4 */
if (sscanf(UT.release, "%d.%d.", &maj, &min) == 2) {
if (maj < 2) {
return 0;
} else if (maj == 2) {
/* hmmm IPAQ 2.4.19-rmk6-pxa1-hh37 works... */
#if 0
if (min < 6) {
return 0;
}
#endif
}
}
}
fd = -1;
i = 0;
while (devs[i] != NULL) {
if ( (fd = open(devs[i++], O_RDWR)) >= 0) {
break;
}
}
if (fd < 0) {
return 0;
}
close(fd);
fd = -1;
return 1;
#endif
}
static int key_pressed[256];
static int key_ismod[256];
static void init_key_tracker(void) {
int i;
for (i = 0; i < 256; i++) {
key_pressed[i] = 0;
key_ismod[i] = 0;
}
i = lookup_code(XK_Shift_L); if (0<=i && i<256) key_ismod[i] = 1;
i = lookup_code(XK_Shift_R); if (0<=i && i<256) key_ismod[i] = 1;
i = lookup_code(XK_Control_L); if (0<=i && i<256) key_ismod[i] = 1;
i = lookup_code(XK_Control_R); if (0<=i && i<256) key_ismod[i] = 1;
i = lookup_code(XK_Alt_L); if (0<=i && i<256) key_ismod[i] = 1;
i = lookup_code(XK_Alt_R); if (0<=i && i<256) key_ismod[i] = 1;
i = lookup_code(XK_Meta_L); if (0<=i && i<256) key_ismod[i] = 1;
i = lookup_code(XK_Meta_R); if (0<=i && i<256) key_ismod[i] = 1;
}
static int mod_is_down(void) {
int i;
if (0) {key_is_down();}
for (i = 0; i < 256; i++) {
if (key_pressed[i] && key_ismod[i]) {
return 1;
}
}
return 0;
}
static int key_is_down(void) {
int i;
for (i = 0; i < 256; i++) {
if (key_pressed[i]) {
return 1;
}
}
return 0;
}
static void shutdown_uinput(void) {
#ifdef UINPUT_OK
ioctl(fd, UI_DEV_DESTROY);
#endif
}
int initialize_uinput(void) {
#ifndef UINPUT_OK
return 0;
#else
int i;
struct uinput_user_dev udev;
if (fd >= 0) {
shutdown_uinput();
close(fd);
fd = -1;
}
if (getenv("X11VNC_UINPUT_DEBUG")) {
db = atoi(getenv("X11VNC_UINPUT_DEBUG"));
rfbLog("set uinput debug to: %d\n", db);
}
init_key_tracker();
if (uinput_dev) {
fd = open(uinput_dev, O_RDWR);
rfbLog("initialize_uinput: using: %s %d\n", uinput_dev, fd);
} else {
i = 0;
while (devs[i] != NULL) {
if ( (fd = open(devs[i], O_RDWR)) >= 0) {
rfbLog("initialize_uinput: using: %s %d\n",
devs[i], fd);
break;
}
i++;
}
}
if (fd < 0) {
rfbLog("initialize_uinput: could not open an uinput device.\n");
rfbLogPerror("open");
clean_up_exit(1);
}
memset(&udev, 0, sizeof(udev));
strncpy(udev.name, "x11vnc injector", UINPUT_MAX_NAME_SIZE);
udev.id.bustype = BUS_USB; /* Matters? */
udev.id.version = 4;
ioctl(fd, UI_SET_EVBIT, EV_REL);
ioctl(fd, UI_SET_RELBIT, REL_X);
ioctl(fd, UI_SET_RELBIT, REL_Y);
ioctl(fd, UI_SET_EVBIT, EV_KEY);
for (i=0; i < 256; i++) {
ioctl(fd, UI_SET_KEYBIT, i);
}
ioctl(fd, UI_SET_KEYBIT, BTN_MOUSE);
ioctl(fd, UI_SET_KEYBIT, BTN_LEFT);
ioctl(fd, UI_SET_KEYBIT, BTN_MIDDLE);
ioctl(fd, UI_SET_KEYBIT, BTN_RIGHT);
ioctl(fd, UI_SET_KEYBIT, BTN_FORWARD);
ioctl(fd, UI_SET_KEYBIT, BTN_BACK);
if (uinput_touchscreen) {
ioctl(fd, UI_SET_KEYBIT, BTN_TOUCH);
rfbLog("uinput: touchscreen enabled.\n");
}
if (uinput_touchscreen || uinput_abs) {
int gw = abs_x, gh = abs_y;
if (! gw || ! gh) {
gw = fb_x; gh = fb_y;
}
if (! gw || ! gh) {
gw = dpy_x; gh = dpy_y;
}
abs_x = gw;
abs_y = gh;
ioctl(fd, UI_SET_EVBIT, EV_ABS);
ioctl(fd, UI_SET_ABSBIT, ABS_X);
ioctl(fd, UI_SET_ABSBIT, ABS_Y);
udev.absmin[ABS_X] = 0;
udev.absmax[ABS_X] = gw;
udev.absfuzz[ABS_X] = 0;
udev.absflat[ABS_X] = 0;
udev.absmin[ABS_Y] = 0;
udev.absmax[ABS_Y] = gh;
udev.absfuzz[ABS_Y] = 0;
udev.absflat[ABS_Y] = 0;
rfbLog("uinput: absolute pointer enabled at %dx%d.\n", abs_x, abs_y);
set_uinput_accel_xy(1.0, 1.0);
}
write(fd, &udev, sizeof(udev));
if (ioctl(fd, UI_DEV_CREATE) != 0) {
rfbLog("ioctl(fd, UI_DEV_CREATE) failed.\n");
rfbLogPerror("ioctl");
close(fd);
clean_up_exit(1);
}
return 1;
#endif
}
/* these defaults are based on qt-embedded 7/2006 */
static double fudge_x = 0.5; /* accel=2.0 */
static double fudge_y = 0.5;
static int thresh = 5;
static int thresh_or = 1;
static double resid_x = 0.0;
static double resid_y = 0.0;
static double zero_delay = 0.15;
static double last_button_click = 0.0;
static int uinput_always = 0;
static void set_uinput_accel_xy(double fx, double fy) {
fudge_x = 1.0/fx;
fudge_y = 1.0/fy;
rfbLog("set_uinput_accel: fx=%.5f fy=%.5f\n", fx, fy);
rfbLog("set_uinput_accel: ix=%.5f iy=%.5f\n", fudge_x, fudge_y);
}
static char *uinput_accel_str = NULL;
static char *uinput_thresh_str = NULL;
int set_uinput_accel(char *str) {
double fx, fy;
rfbLog("set_uinput_accel: str=%s\n", str);
if (sscanf(str, "%lf+%lf", &fx, &fy) == 2) {
set_uinput_accel_xy(fx, fy);
} else if (sscanf(str, "%lf", &fx) == 1) {
set_uinput_accel_xy(fx, fx);
} else {
rfbLog("invalid UINPUT accel= option: %s\n", str);
return 0;
}
if (uinput_accel_str) {
free(uinput_accel_str);
}
uinput_accel_str = strdup(str);
return 1;
}
int set_uinput_thresh(char *str) {
rfbLog("set_uinput_thresh: str=%s\n", str);
if (str[0] == '+') {
thresh_or = 0;
}
thresh = atoi(str);
if (uinput_thresh_str) {
free(uinput_thresh_str);
}
uinput_thresh_str = strdup(str);
return 1;
}
void set_uinput_reset(int ms) {
zero_delay = (double) ms/1000.;
rfbLog("set_uinput_reset: %d\n", ms);
}
void set_uinput_always(int a) {
uinput_always = a;
}
void set_uinput_touchscreen(int b) {
uinput_touchscreen = b;
}
void set_uinput_abs(int b) {
uinput_abs = b;
}
char *get_uinput_accel(void) {
return uinput_accel_str;
}
char *get_uinput_thresh(void) {
return uinput_thresh_str;
}
int get_uinput_reset(void) {
return (int) (1000 * zero_delay);
}
int get_uinput_always(void) {
return uinput_always;
}
int get_uinput_touchscreen(void) {
return uinput_touchscreen;
}
int get_uinput_abs(void) {
return uinput_abs;
}
void parse_uinput_str(char *in) {
char *p, *q, *str = strdup(in);
if (injectable) {
free(injectable);
injectable = strdup("KMB");
}
uinput_touchscreen = 0;
uinput_abs = 0;
abs_x = abs_y = 0;
p = strtok(str, ",");
while (p) {
if (p[0] == '/') {
if (uinput_dev) {
free(uinput_dev);
}
uinput_dev = strdup(p);
} else if (strstr(p, "accel=") == p) {
q = p + strlen("accel=");
if (! set_uinput_accel(q)) {
clean_up_exit(1);
}
} else if (strstr(p, "thresh=") == p) {
q = p + strlen("thresh=");
set_uinput_thresh(q);
} else if (strstr(p, "reset=") == p) {
int n = atoi(p + strlen("reset="));
set_uinput_reset(n);
} else if (strstr(p, "always=") == p) {
int n = atoi(p + strlen("always="));
set_uinput_always(n);
} else if (strpbrk(p, "KMB") == p) {
if (injectable) {
free(injectable);
}
injectable = strdup(p);
} else if (strstr(p, "touch") == p) {
int gw, gh;
q = strchr(p, '=');
set_uinput_touchscreen(1);
set_uinput_abs(1);
if (q && sscanf(q+1, "%dx%d", &gw, &gh) == 2) {
abs_x = gw;
abs_y = gh;
}
} else if (strstr(p, "abs") == p) {
int gw, gh;
q = strchr(p, '=');
set_uinput_abs(1);
if (q && sscanf(q+1, "%dx%d", &gw, &gh) == 2) {
abs_x = gw;
abs_y = gh;
}
} else {
rfbLog("invalid UINPUT option: %s\n", p);
clean_up_exit(1);
}
p = strtok(NULL, ",");
}
free(str);
}
static void ptr_move(int dx, int dy) {
#ifdef UINPUT_OK
struct input_event ev;
if (injectable && strchr(injectable, 'M') == NULL) {
return;
}
memset(&ev, 0, sizeof(ev));
gettimeofday(&ev.time, NULL);
ev.type = EV_REL;
ev.code = REL_Y;
ev.value = dy;
write(fd, &ev, sizeof(ev));
ev.type = EV_REL;
ev.code = REL_X;
ev.value = dx;
write(fd, &ev, sizeof(ev));
ev.type = EV_SYN;
ev.code = SYN_REPORT;
ev.value = 0;
write(fd, &ev, sizeof(ev));
#else
if (!dx || !dy) {}
#endif
}
static void ptr_abs(int x, int y) {
#ifdef UINPUT_OK
struct input_event ev;
if (injectable && strchr(injectable, 'M') == NULL) {
return;
}
memset(&ev, 0, sizeof(ev));
if (db) fprintf(stderr, "ptr_abs(%d, %d)\n", x, y);
gettimeofday(&ev.time, NULL);
ev.type = EV_ABS;
ev.code = ABS_Y;
ev.value = y;
write(fd, &ev, sizeof(ev));
ev.type = EV_ABS;
ev.code = ABS_X;
ev.value = x;
write(fd, &ev, sizeof(ev));
ev.type = EV_SYN;
ev.code = SYN_REPORT;
ev.value = 0;
write(fd, &ev, sizeof(ev));
#else
if (!x || !y) {}
#endif
}
static int inside_thresh(int dx, int dy, int thr) {
if (thresh_or) {
/* this is peeking at qt-embedded qmouse_qws.cpp */
if (nabs(dx) <= thresh && nabs(dy) <= thr) {
return 1;
}
} else {
/* this is peeking at xfree/xorg xf86Xinput.c */
if (nabs(dx) + nabs(dy) < thr) {
return 1;
}
}
return 0;
}
static void ptr_rel(int dx, int dy) {
int dxf, dyf, nx, ny, k;
int accel, thresh_high, thresh_mid;
double fx, fy;
static int try_threshes = -1;
if (try_threshes < 0) {
if (getenv("X11VNC_UINPUT_THRESHOLDS")) {
try_threshes = 1;
} else {
try_threshes = 0;
}
}
if (try_threshes) {
thresh_high = (int) ( (double) thresh/fudge_x );
thresh_mid = (int) ( (double) (thresh + thresh_high) / 2.0 );
if (thresh_mid <= thresh) {
thresh_mid = thresh + 1;
}
if (thresh_high <= thresh_mid) {
thresh_high = thresh_mid + 1;
}
if (inside_thresh(dx, dy, thresh)) {
accel = 0;
} else {
accel = 1;
}
nx = nabs(dx);
ny = nabs(dy);
} else {
accel = 1;
thresh_high = 0;
nx = ny = 1;
}
if (accel && nx + ny > 0 ) {
if (thresh_high > 0 && inside_thresh(dx, dy, thresh_high)) {
double alpha, t;
/* XXX */
if (1 || inside_thresh(dx, dy, thresh_mid)) {
t = thresh;
accel = 2;
} else {
accel = 3;
t = thresh_high;
}
if (thresh_or) {
if (nx > ny) {
fx = t;
fy = ((double) ny / (double) nx) * t;
} else {
fx = ((double) nx / (double) ny) * t;
fy = t;
}
dxf = (int) fx;
dyf = (int) fy;
fx = dx;
fy = dy;
} else {
if (t > 1) {
/* XXX */
t = t - 1.0;
}
alpha = t/(nx + ny);
fx = alpha * dx;
fy = alpha * dy;
dxf = (int) fx;
dyf = (int) fy;
fx = dx;
fy = dy;
}
} else {
fx = fudge_x * (double) dx;
fy = fudge_y * (double) dy;
dxf = (int) fx;
dyf = (int) fy;
}
} else {
fx = dx;
fy = dy;
dxf = dx;
dyf = dy;
}
if (db > 1) fprintf(stderr, "old dx dy: %d %d\n", dx, dy);
if (db > 1) fprintf(stderr, "new dx dy: %d %d accel: %d\n", dxf, dyf, accel);
ptr_move(dxf, dyf);
resid_x += fx - dxf;
resid_y += fy - dyf;
for (k = 0; k < 4; k++) {
if (resid_x <= -1.0 || resid_x >= 1.0 || resid_y <= -1.0 || resid_y >= 1.0) {
dxf = 0;
dyf = 0;
if (resid_x >= 1.0) {
dxf = (int) resid_x;
dxf = 1;
} else if (resid_x <= -1.0) {
dxf = -((int) (-resid_x));
dxf = -1;
}
resid_x -= dxf;
if (resid_y >= 1.0) {
dyf = (int) resid_y;
dyf = 1;
} else if (resid_y <= -1.0) {
dyf = -((int) (-resid_y));
dyf = -1;
}
resid_y -= dyf;
if (db > 1) fprintf(stderr, "*%s resid: dx dy: %d %d %f %f\n", accel > 1 ? "*" : " ", dxf, dyf, resid_x, resid_y);
if (0) {usleep(100*1000)};
ptr_move(dxf, dyf);
}
}
}
static void button_click(int down, int btn) {
#ifdef UINPUT_OK
struct input_event ev;
if (injectable && strchr(injectable, 'B') == NULL) {
return;
}
if (db) fprintf(stderr, "button_click: btn %d %s\n", btn, down ? "down" : "up");
memset(&ev, 0, sizeof(ev));
gettimeofday(&ev.time, NULL);
ev.type = EV_KEY;
ev.value = down;
if (uinput_touchscreen) {
ev.code = BTN_TOUCH;
if (db) fprintf(stderr, "set code to BTN_TOUCH\n");
} else if (btn == 1) {
ev.code = BTN_LEFT;
} else if (btn == 2) {
ev.code = BTN_MIDDLE;
} else if (btn == 3) {
ev.code = BTN_RIGHT;
} else if (btn == 4) {
ev.code = BTN_FORWARD;
} else if (btn == 5) {
ev.code = BTN_BACK;
} else {
return;
}
write(fd, &ev, sizeof(ev));
ev.type = EV_SYN;
ev.code = SYN_REPORT;
ev.value = 0;
write(fd, &ev, sizeof(ev));
last_button_click = dnow();
#else
if (!down || !btn) {}
#endif
}
void uinput_pointer_command(int mask, int x, int y, rfbClientPtr client) {
static int last_x = -1, last_y = -1, last_mask = -1;
static double last_zero = 0.0;
allowed_input_t input;
int do_reset, reset_lower_right = 1;
double now;
static int first = 1;
if (first) {
if (getenv("RESET_ALWAYS")) {
set_uinput_always(1);
} else {
set_uinput_always(0);
}
}
first = 0;
if (db) fprintf(stderr, "uinput_pointer_command: %d %d - %d\n", x, y, mask);
if (view_only) {
return;
}
get_allowed_input(client, &input);
now = dnow();
do_reset = 1;
if (mask || bmask) {
do_reset = 0; /* do not do reset if mouse button down */
} else if (! input.motion) {
do_reset = 0;
} else if (now < last_zero + zero_delay) {
do_reset = 0;
}
if (do_reset) {
if (mod_is_down()) {
do_reset = 0;
} else if (now < last_button_click + 0.25) {
do_reset = 0;
}
}
if (uinput_always && !mask && !bmask && input.motion) {
do_reset = 1;
}
if (uinput_abs) {
#if 0
/* this is a bad idea... need to do something else */
if (do_reset) {
ptr_abs(dpy_x, dpy_y);
usleep(10*1000);
ptr_abs(x, y);
usleep(10*1000);
}
#endif
do_reset = 0;
}
if (do_reset) {
static int first = 1;
if (zero_delay > 0.0 || first) {
/* try to push it to 0,0 */
int tx, ty, bigjump = 1;
if (reset_lower_right) {
tx = fudge_x * (dpy_x - last_x);
ty = fudge_y * (dpy_y - last_y);
} else {
tx = fudge_x * last_x;
ty = fudge_y * last_y;
}
tx += 50;
ty += 50;
if (bigjump) {
if (reset_lower_right) {
ptr_move(0, +ty);
usleep(2*1000);
ptr_move(+tx, +ty);
ptr_move(+tx, +ty);
} else {
ptr_move(0, -ty);
usleep(2*1000);
ptr_move(-tx, -ty);
ptr_move(-tx, -ty);
}
} else {
int i, step, n = 20;
step = dpy_x / n;
if (step < 100) step = 100;
for (i=0; i < n; i++) {
if (reset_lower_right) {
ptr_move(+step, +step);
} else {
ptr_move(-step, -step);
}
}
for (i=0; i < n; i++) {
if (reset_lower_right) {
ptr_move(+1, +1);
} else {
ptr_move(-1, -1);
}
}
}
if (db) {
if (reset_lower_right) {
fprintf(stderr, "uinput_pointer_command: reset -> (W,H) (%d,%d) [%d,%d]\n", x, y, tx, ty);
} else {
fprintf(stderr, "uinput_pointer_command: reset -> (0,0) (%d,%d) [%d,%d]\n", x, y, tx, ty);
}
}
/* rest a bit for system to absorb the change */
if (uinput_always) {
static double last_sleep = 0.0;
double nw = dnow(), delay = zero_delay;
if (delay <= 0.0) delay = 0.1;
if (nw > last_sleep + delay) {
usleep(10*1000);
last_sleep = nw;
} else {
usleep(1*1000);
}
} else {
usleep(30*1000);
}
/* now jump back out */
if (reset_lower_right) {
ptr_rel(x - dpy_x, y - dpy_y);
} else {
ptr_rel(x, y);
}
if (1) {usleep(10*1000)};
last_x = x;
last_y = y;
resid_x = 0.0;
resid_y = 0.0;
first = 0;
}
last_zero = dnow();
}
if (input.motion) {
if (x != last_x || y != last_y) {
if (uinput_abs) {
ptr_abs(x, y);
} else {
ptr_rel(x - last_x, y - last_y);
}
last_x = x;
last_y = y;
}
}
if (! input.button) {
return;
}
if (last_mask < 0) {
last_mask = mask;
}
if (db > 2) {
fprintf(stderr, "mask: %s\n", bitprint(mask, 16));
fprintf(stderr, "bmask: %s\n", bitprint(bmask, 16));
fprintf(stderr, "last_mask: %s\n", bitprint(last_mask, 16));
fprintf(stderr, "button_mask: %s\n", bitprint(button_mask, 16));
}
if (mask != last_mask) {
int i;
for (i=1; i <= MAX_BUTTONS; i++) {
int down, b = 1 << (i-1);
if ( (last_mask & b) == (mask & b)) {
continue;
}
if (mask & b) {
down = 1;
} else {
down = 0;
}
button_click(down, i);
}
last_mask = mask;
}
bmask = mask;
}
void uinput_key_command(int down, int keysym, rfbClientPtr client) {
#ifdef UINPUT_OK
struct input_event ev;
int scancode;
allowed_input_t input;
if (injectable && strchr(injectable, 'K') == NULL) {
return;
}
if (view_only) {
return;
}
get_allowed_input(client, &input);
if (! input.keystroke) {
return;
}
scancode = lookup_code(keysym);
if (scancode < 0) {
return;
}
if (db) fprintf(stderr, "uinput_key_command: %d -> %d %s\n", keysym, scancode, down ? "down" : "up");
memset(&ev, 0, sizeof(ev));
gettimeofday(&ev.time, NULL);
ev.type = EV_KEY;
ev.code = (unsigned char) scancode;
ev.value = down;
write(fd, &ev, sizeof(ev));
ev.type = EV_SYN;
ev.code = SYN_REPORT;
ev.value = 0;
write(fd, &ev, sizeof(ev));
if (0 <= scancode && scancode < 256) {
key_pressed[scancode] = down ? 1 : 0;
}
#else
if (!down || !keysym || !client) {}
#endif
}
static int lookup_code(int keysym) {
if (keysym == NoSymbol) {
return -1;
}
switch(keysym) {
#ifdef UINPUT_OK
case XK_Escape: return KEY_ESC;
case XK_1: return KEY_1;
case XK_2: return KEY_2;
case XK_3: return KEY_3;
case XK_4: return KEY_4;
case XK_5: return KEY_5;
case XK_6: return KEY_6;
case XK_7: return KEY_7;
case XK_8: return KEY_8;
case XK_9: return KEY_9;
case XK_0: return KEY_0;
case XK_exclam: return KEY_1;
case XK_at: return KEY_2;
case XK_numbersign: return KEY_3;
case XK_dollar: return KEY_4;
case XK_percent: return KEY_5;
case XK_asciicircum: return KEY_6;
case XK_ampersand: return KEY_7;
case XK_asterisk: return KEY_8;
case XK_parenleft: return KEY_9;
case XK_parenright: return KEY_0;
case XK_minus: return KEY_MINUS;
case XK_underscore: return KEY_MINUS;
case XK_equal: return KEY_EQUAL;
case XK_plus: return KEY_EQUAL;
case XK_BackSpace: return KEY_BACKSPACE;
case XK_Tab: return KEY_TAB;
case XK_q: return KEY_Q;
case XK_Q: return KEY_Q;
case XK_w: return KEY_W;
case XK_W: return KEY_W;
case XK_e: return KEY_E;
case XK_E: return KEY_E;
case XK_r: return KEY_R;
case XK_R: return KEY_R;
case XK_t: return KEY_T;
case XK_T: return KEY_T;
case XK_y: return KEY_Y;
case XK_Y: return KEY_Y;
case XK_u: return KEY_U;
case XK_U: return KEY_U;
case XK_i: return KEY_I;
case XK_I: return KEY_I;
case XK_o: return KEY_O;
case XK_O: return KEY_O;
case XK_p: return KEY_P;
case XK_P: return KEY_P;
case XK_braceleft: return KEY_LEFTBRACE;
case XK_braceright: return KEY_RIGHTBRACE;
case XK_bracketleft: return KEY_LEFTBRACE;
case XK_bracketright: return KEY_RIGHTBRACE;
case XK_Return: return KEY_ENTER;
case XK_Control_L: return KEY_LEFTCTRL;
case XK_a: return KEY_A;
case XK_A: return KEY_A;
case XK_s: return KEY_S;
case XK_S: return KEY_S;
case XK_d: return KEY_D;
case XK_D: return KEY_D;
case XK_f: return KEY_F;
case XK_F: return KEY_F;
case XK_g: return KEY_G;
case XK_G: return KEY_G;
case XK_h: return KEY_H;
case XK_H: return KEY_H;
case XK_j: return KEY_J;
case XK_J: return KEY_J;
case XK_k: return KEY_K;
case XK_K: return KEY_K;
case XK_l: return KEY_L;
case XK_L: return KEY_L;
case XK_semicolon: return KEY_SEMICOLON;
case XK_colon: return KEY_SEMICOLON;
case XK_apostrophe: return KEY_APOSTROPHE;
case XK_quotedbl: return KEY_APOSTROPHE;
case XK_grave: return KEY_GRAVE;
case XK_asciitilde: return KEY_GRAVE;
case XK_Shift_L: return KEY_LEFTSHIFT;
case XK_backslash: return KEY_BACKSLASH;
case XK_bar: return KEY_BACKSLASH;
case XK_z: return KEY_Z;
case XK_Z: return KEY_Z;
case XK_x: return KEY_X;
case XK_X: return KEY_X;
case XK_c: return KEY_C;
case XK_C: return KEY_C;
case XK_v: return KEY_V;
case XK_V: return KEY_V;
case XK_b: return KEY_B;
case XK_B: return KEY_B;
case XK_n: return KEY_N;
case XK_N: return KEY_N;
case XK_m: return KEY_M;
case XK_M: return KEY_M;
case XK_comma: return KEY_COMMA;
case XK_less: return KEY_COMMA;
case XK_period: return KEY_DOT;
case XK_greater: return KEY_DOT;
case XK_slash: return KEY_SLASH;
case XK_question: return KEY_SLASH;
case XK_Shift_R: return KEY_RIGHTSHIFT;
case XK_KP_Multiply: return KEY_KPASTERISK;
case XK_Alt_L: return KEY_LEFTALT;
case XK_space: return KEY_SPACE;
case XK_Caps_Lock: return KEY_CAPSLOCK;
case XK_F1: return KEY_F1;
case XK_F2: return KEY_F2;
case XK_F3: return KEY_F3;
case XK_F4: return KEY_F4;
case XK_F5: return KEY_F5;
case XK_F6: return KEY_F6;
case XK_F7: return KEY_F7;
case XK_F8: return KEY_F8;
case XK_F9: return KEY_F9;
case XK_F10: return KEY_F10;
case XK_Num_Lock: return KEY_NUMLOCK;
case XK_Scroll_Lock: return KEY_SCROLLLOCK;
case XK_KP_7: return KEY_KP7;
case XK_KP_8: return KEY_KP8;
case XK_KP_9: return KEY_KP9;
case XK_KP_Subtract: return KEY_KPMINUS;
case XK_KP_4: return KEY_KP4;
case XK_KP_5: return KEY_KP5;
case XK_KP_6: return KEY_KP6;
case XK_KP_Add: return KEY_KPPLUS;
case XK_KP_1: return KEY_KP1;
case XK_KP_2: return KEY_KP2;
case XK_KP_3: return KEY_KP3;
case XK_KP_0: return KEY_KP0;
case XK_KP_Decimal: return KEY_KPDOT;
case XK_F13: return KEY_F13;
case XK_F11: return KEY_F11;
case XK_F12: return KEY_F12;
case XK_F14: return KEY_F14;
case XK_F15: return KEY_F15;
case XK_F16: return KEY_F16;
case XK_F17: return KEY_F17;
case XK_F18: return KEY_F18;
case XK_F19: return KEY_F19;
case XK_F20: return KEY_F20;
case XK_KP_Enter: return KEY_KPENTER;
case XK_Control_R: return KEY_RIGHTCTRL;
case XK_KP_Divide: return KEY_KPSLASH;
case XK_Sys_Req: return KEY_SYSRQ;
case XK_Alt_R: return KEY_RIGHTALT;
case XK_Linefeed: return KEY_LINEFEED;
case XK_Home: return KEY_HOME;
case XK_Up: return KEY_UP;
case XK_Page_Up: return KEY_PAGEUP;
case XK_Left: return KEY_LEFT;
case XK_Right: return KEY_RIGHT;
case XK_End: return KEY_END;
case XK_Down: return KEY_DOWN;
case XK_Page_Down: return KEY_PAGEDOWN;
case XK_Insert: return KEY_INSERT;
case XK_Delete: return KEY_DELETE;
case XK_KP_Equal: return KEY_KPEQUAL;
case XK_Pause: return KEY_PAUSE;
case XK_F21: return KEY_F21;
case XK_F22: return KEY_F22;
case XK_F23: return KEY_F23;
case XK_F24: return KEY_F24;
case XK_KP_Separator: return KEY_KPCOMMA;
case XK_Meta_L: return KEY_LEFTMETA;
case XK_Meta_R: return KEY_RIGHTMETA;
case XK_Multi_key: return KEY_COMPOSE;
#endif
default: return -1;
}
}
#if 0
From /usr/include/linux/input.h
We maintain it here since it is such a painful mess.
Here is a little script to make it easier:
#!/usr/bin/perl
while (<>) {
$_ =~ s/-XK_/XK_/;
next unless /^XK_/;
chomp;
if (/^(\S+)(\s+)(\S+)/) {
$a = $1;
$t = $2;
$b = $3;
print "\tcase $a:${t}return $b;\n";
if ($a =~ /XK_[a-z]$/) {
$a = uc($a);
print "\tcase $a:${t}return $b;\n";
}
}
}
This only handles US kbd, we would need a kbd database in general...
Ugh: parse dumpkeys(1) or -fookeys /usr/share/keymaps/i386/qwerty/dk.kmap.gz
XK_Escape KEY_ESC
XK_1 KEY_1
XK_2 KEY_2
XK_3 KEY_3
XK_4 KEY_4
XK_5 KEY_5
XK_6 KEY_6
XK_7 KEY_7
XK_8 KEY_8
XK_9 KEY_9
XK_0 KEY_0
-XK_exclam KEY_1
-XK_at KEY_2
-XK_numbersign KEY_3
-XK_dollar KEY_4
-XK_percent KEY_5
-XK_asciicircum KEY_6
-XK_ampersand KEY_7
-XK_asterisk KEY_8
-XK_parenleft KEY_9
-XK_parenright KEY_0
XK_minus KEY_MINUS
-XK_underscore KEY_MINUS
XK_equal KEY_EQUAL
-XK_plus KEY_EQUAL
XK_BackSpace KEY_BACKSPACE
XK_Tab KEY_TAB
XK_q KEY_Q
XK_w KEY_W
XK_e KEY_E
XK_r KEY_R
XK_t KEY_T
XK_y KEY_Y
XK_u KEY_U
XK_i KEY_I
XK_o KEY_O
XK_p KEY_P
XK_braceleft KEY_LEFTBRACE
XK_braceright KEY_RIGHTBRACE
-XK_bracketleft KEY_LEFTBRACE
-XK_bracketright KEY_RIGHTBRACE
XK_Return KEY_ENTER
XK_Control_L KEY_LEFTCTRL
XK_a KEY_A
XK_s KEY_S
XK_d KEY_D
XK_f KEY_F
XK_g KEY_G
XK_h KEY_H
XK_j KEY_J
XK_k KEY_K
XK_l KEY_L
XK_semicolon KEY_SEMICOLON
-XK_colon KEY_SEMICOLON
XK_apostrophe KEY_APOSTROPHE
-XK_quotedbl KEY_APOSTROPHE
XK_grave KEY_GRAVE
-XK_asciitilde KEY_GRAVE
XK_Shift_L KEY_LEFTSHIFT
XK_backslash KEY_BACKSLASH
-XK_bar KEY_BACKSLASH
XK_z KEY_Z
XK_x KEY_X
XK_c KEY_C
XK_v KEY_V
XK_b KEY_B
XK_n KEY_N
XK_m KEY_M
XK_comma KEY_COMMA
-XK_less KEY_COMMA
XK_period KEY_DOT
-XK_greater KEY_DOT
XK_slash KEY_SLASH
-XK_question KEY_SLASH
XK_Shift_R KEY_RIGHTSHIFT
XK_KP_Multiply KEY_KPASTERISK
XK_Alt_L KEY_LEFTALT
XK_space KEY_SPACE
XK_Caps_Lock KEY_CAPSLOCK
XK_F1 KEY_F1
XK_F2 KEY_F2
XK_F3 KEY_F3
XK_F4 KEY_F4
XK_F5 KEY_F5
XK_F6 KEY_F6
XK_F7 KEY_F7
XK_F8 KEY_F8
XK_F9 KEY_F9
XK_F10 KEY_F10
XK_Num_Lock KEY_NUMLOCK
XK_Scroll_Lock KEY_SCROLLLOCK
XK_KP_7 KEY_KP7
XK_KP_8 KEY_KP8
XK_KP_9 KEY_KP9
XK_KP_Subtract KEY_KPMINUS
XK_KP_4 KEY_KP4
XK_KP_5 KEY_KP5
XK_KP_6 KEY_KP6
XK_KP_Add KEY_KPPLUS
XK_KP_1 KEY_KP1
XK_KP_2 KEY_KP2
XK_KP_3 KEY_KP3
XK_KP_0 KEY_KP0
XK_KP_Decimal KEY_KPDOT
NoSymbol KEY_103RD
XK_F13 KEY_F13
NoSymbol KEY_102ND
XK_F11 KEY_F11
XK_F12 KEY_F12
XK_F14 KEY_F14
XK_F15 KEY_F15
XK_F16 KEY_F16
XK_F17 KEY_F17
XK_F18 KEY_F18
XK_F19 KEY_F19
XK_F20 KEY_F20
XK_KP_Enter KEY_KPENTER
XK_Control_R KEY_RIGHTCTRL
XK_KP_Divide KEY_KPSLASH
XK_Sys_Req KEY_SYSRQ
XK_Alt_R KEY_RIGHTALT
XK_Linefeed KEY_LINEFEED
XK_Home KEY_HOME
XK_Up KEY_UP
XK_Page_Up KEY_PAGEUP
XK_Left KEY_LEFT
XK_Right KEY_RIGHT
XK_End KEY_END
XK_Down KEY_DOWN
XK_Page_Down KEY_PAGEDOWN
XK_Insert KEY_INSERT
XK_Delete KEY_DELETE
NoSymbol KEY_MACRO
NoSymbol KEY_MUTE
NoSymbol KEY_VOLUMEDOWN
NoSymbol KEY_VOLUMEUP
NoSymbol KEY_POWER
XK_KP_Equal KEY_KPEQUAL
NoSymbol KEY_KPPLUSMINUS
XK_Pause KEY_PAUSE
XK_F21 KEY_F21
XK_F22 KEY_F22
XK_F23 KEY_F23
XK_F24 KEY_F24
XK_KP_Separator KEY_KPCOMMA
XK_Meta_L KEY_LEFTMETA
XK_Meta_R KEY_RIGHTMETA
XK_Multi_key KEY_COMPOSE
NoSymbol KEY_STOP
NoSymbol KEY_AGAIN
NoSymbol KEY_PROPS
NoSymbol KEY_UNDO
NoSymbol KEY_FRONT
NoSymbol KEY_COPY
NoSymbol KEY_OPEN
NoSymbol KEY_PASTE
NoSymbol KEY_FIND
NoSymbol KEY_CUT
NoSymbol KEY_HELP
NoSymbol KEY_MENU
NoSymbol KEY_CALC
NoSymbol KEY_SETUP
NoSymbol KEY_SLEEP
NoSymbol KEY_WAKEUP
NoSymbol KEY_FILE
NoSymbol KEY_SENDFILE
NoSymbol KEY_DELETEFILE
NoSymbol KEY_XFER
NoSymbol KEY_PROG1
NoSymbol KEY_PROG2
NoSymbol KEY_WWW
NoSymbol KEY_MSDOS
NoSymbol KEY_COFFEE
NoSymbol KEY_DIRECTION
NoSymbol KEY_CYCLEWINDOWS
NoSymbol KEY_MAIL
NoSymbol KEY_BOOKMARKS
NoSymbol KEY_COMPUTER
NoSymbol KEY_BACK
NoSymbol KEY_FORWARD
NoSymbol KEY_CLOSECD
NoSymbol KEY_EJECTCD
NoSymbol KEY_EJECTCLOSECD
NoSymbol KEY_NEXTSONG
NoSymbol KEY_PLAYPAUSE
NoSymbol KEY_PREVIOUSSONG
NoSymbol KEY_STOPCD
NoSymbol KEY_RECORD
NoSymbol KEY_REWIND
NoSymbol KEY_PHONE
NoSymbol KEY_ISO
NoSymbol KEY_CONFIG
NoSymbol KEY_HOMEPAGE
NoSymbol KEY_REFRESH
NoSymbol KEY_EXIT
NoSymbol KEY_MOVE
NoSymbol KEY_EDIT
NoSymbol KEY_SCROLLUP
NoSymbol KEY_SCROLLDOWN
NoSymbol KEY_KPLEFTPAREN
NoSymbol KEY_KPRIGHTPAREN
NoSymbol KEY_INTL1
NoSymbol KEY_INTL2
NoSymbol KEY_INTL3
NoSymbol KEY_INTL4
NoSymbol KEY_INTL5
NoSymbol KEY_INTL6
NoSymbol KEY_INTL7
NoSymbol KEY_INTL8
NoSymbol KEY_INTL9
NoSymbol KEY_LANG1
NoSymbol KEY_LANG2
NoSymbol KEY_LANG3
NoSymbol KEY_LANG4
NoSymbol KEY_LANG5
NoSymbol KEY_LANG6
NoSymbol KEY_LANG7
NoSymbol KEY_LANG8
NoSymbol KEY_LANG9
NoSymbol KEY_PLAYCD
NoSymbol KEY_PAUSECD
NoSymbol KEY_PROG3
NoSymbol KEY_PROG4
NoSymbol KEY_SUSPEND
NoSymbol KEY_CLOSE
NoSymbol KEY_PLAY
NoSymbol KEY_FASTFORWARD
NoSymbol KEY_BASSBOOST
NoSymbol KEY_PRINT
NoSymbol KEY_HP
NoSymbol KEY_CAMERA
NoSymbol KEY_SOUND
NoSymbol KEY_QUESTION
NoSymbol KEY_EMAIL
NoSymbol KEY_CHAT
NoSymbol KEY_SEARCH
NoSymbol KEY_CONNECT
NoSymbol KEY_FINANCE
NoSymbol KEY_SPORT
NoSymbol KEY_SHOP
NoSymbol KEY_ALTERASE
NoSymbol KEY_CANCEL
NoSymbol KEY_BRIGHTNESSDOWN
NoSymbol KEY_BRIGHTNESSUP
NoSymbol KEY_MEDIA
NoSymbol KEY_UNKNOWN
NoSymbol
NoSymbol BTN_MISC
NoSymbol BTN_0
NoSymbol BTN_1
NoSymbol BTN_2
NoSymbol BTN_3
NoSymbol BTN_4
NoSymbol BTN_5
NoSymbol BTN_6
NoSymbol BTN_7
NoSymbol BTN_8
NoSymbol BTN_9
NoSymbol
NoSymbol BTN_MOUSE
NoSymbol BTN_LEFT
NoSymbol BTN_RIGHT
NoSymbol BTN_MIDDLE
NoSymbol BTN_SIDE
NoSymbol BTN_EXTRA
NoSymbol BTN_FORWARD
NoSymbol BTN_BACK
NoSymbol BTN_TASK
NoSymbol
NoSymbol BTN_JOYSTICK
NoSymbol BTN_TRIGGER
NoSymbol BTN_THUMB
NoSymbol BTN_THUMB2
NoSymbol BTN_TOP
NoSymbol BTN_TOP2
NoSymbol BTN_PINKIE
NoSymbol BTN_BASE
NoSymbol BTN_BASE2
NoSymbol BTN_BASE3
NoSymbol BTN_BASE4
NoSymbol BTN_BASE5
NoSymbol BTN_BASE6
NoSymbol BTN_DEAD
NoSymbol BTN_GAMEPAD
NoSymbol BTN_A
NoSymbol BTN_B
NoSymbol BTN_C
NoSymbol BTN_X
NoSymbol BTN_Y
NoSymbol BTN_Z
NoSymbol BTN_TL
NoSymbol BTN_TR
NoSymbol BTN_TL2
NoSymbol BTN_TR2
NoSymbol BTN_SELECT
NoSymbol BTN_START
NoSymbol BTN_MODE
NoSymbol BTN_THUMBL
NoSymbol BTN_THUMBR
NoSymbol BTN_DIGI
NoSymbol BTN_TOOL_PEN
NoSymbol BTN_TOOL_RUBBER
NoSymbol BTN_TOOL_BRUSH
NoSymbol BTN_TOOL_PENCIL
NoSymbol BTN_TOOL_AIRBRUSH
NoSymbol BTN_TOOL_FINGER
NoSymbol BTN_TOOL_MOUSE
NoSymbol BTN_TOOL_LENS
NoSymbol BTN_TOUCH
NoSymbol BTN_STYLUS
NoSymbol BTN_STYLUS2
NoSymbol BTN_TOOL_DOUBLETAP
NoSymbol BTN_TOOL_TRIPLETAP
NoSymbol BTN_WHEEL
NoSymbol BTN_GEAR_DOWN
NoSymbol BTN_GEAR_UP
NoSymbol KEY_OK
NoSymbol KEY_SELECT
NoSymbol KEY_GOTO
NoSymbol KEY_CLEAR
NoSymbol KEY_POWER2
NoSymbol KEY_OPTION
NoSymbol KEY_INFO
NoSymbol KEY_TIME
NoSymbol KEY_VENDOR
NoSymbol KEY_ARCHIVE
NoSymbol KEY_PROGRAM
NoSymbol KEY_CHANNEL
NoSymbol KEY_FAVORITES
NoSymbol KEY_EPG
NoSymbol KEY_PVR
NoSymbol KEY_MHP
NoSymbol KEY_LANGUAGE
NoSymbol KEY_TITLE
NoSymbol KEY_SUBTITLE
NoSymbol KEY_ANGLE
NoSymbol KEY_ZOOM
NoSymbol KEY_MODE
NoSymbol KEY_KEYBOARD
NoSymbol KEY_SCREEN
NoSymbol KEY_PC
NoSymbol KEY_TV
NoSymbol KEY_TV2
NoSymbol KEY_VCR
NoSymbol KEY_VCR2
NoSymbol KEY_SAT
NoSymbol KEY_SAT2
NoSymbol KEY_CD
NoSymbol KEY_TAPE
NoSymbol KEY_RADIO
NoSymbol KEY_TUNER
NoSymbol KEY_PLAYER
NoSymbol KEY_TEXT
NoSymbol KEY_DVD
NoSymbol KEY_AUX
NoSymbol KEY_MP3
NoSymbol KEY_AUDIO
NoSymbol KEY_VIDEO
NoSymbol KEY_DIRECTORY
NoSymbol KEY_LIST
NoSymbol KEY_MEMO
NoSymbol KEY_CALENDAR
NoSymbol KEY_RED
NoSymbol KEY_GREEN
NoSymbol KEY_YELLOW
NoSymbol KEY_BLUE
NoSymbol KEY_CHANNELUP
NoSymbol KEY_CHANNELDOWN
NoSymbol KEY_FIRST
NoSymbol KEY_LAST
NoSymbol KEY_AB
NoSymbol KEY_NEXT
NoSymbol KEY_RESTART
NoSymbol KEY_SLOW
NoSymbol KEY_SHUFFLE
NoSymbol KEY_BREAK
NoSymbol KEY_PREVIOUS
NoSymbol KEY_DIGITS
NoSymbol KEY_TEEN
NoSymbol KEY_TWEN
NoSymbol KEY_DEL_EOL
NoSymbol KEY_DEL_EOS
NoSymbol KEY_INS_LINE
NoSymbol KEY_DEL_LINE
NoSymbol KEY_MAX
#endif
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