02d0910511
Convert KDrive to GPE/GKE interface. Add first-class drivers and enumerate every device separately through Xi, instead of lamely attempting to aggregate them. Add XKB support to the Linux keyboard driver. Add 'thumb button' support to the tslib driver. Rejig InitInput, so each DDX has to add a list of drivers it supports. Support NewInputDeviceRequest, et al.
312 lines
8.2 KiB
C
312 lines
8.2 KiB
C
/*
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* $Id$
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*
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* Copyright © 2004 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <kdrive-config.h>
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#endif
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#define NEED_EVENTS
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#include <errno.h>
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#include <linux/input.h>
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#include <X11/X.h>
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#include <X11/Xproto.h>
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#include <X11/Xpoll.h>
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#include "inputstr.h"
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#include "scrnintstr.h"
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#include "kdrive.h"
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#define NUM_EVENTS 128
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#define ABS_UNSET -65535
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#define BITS_PER_LONG (sizeof(long) * 8)
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#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
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#define ISBITSET(x,y) ((x)[LONG(y)] & BIT(y))
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#define OFF(x) ((x)%BITS_PER_LONG)
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#define LONG(x) ((x)/BITS_PER_LONG)
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#define BIT(x) (1 << OFF(x))
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#define SETBIT(x,y) ((x)[LONG(y)] |= BIT(y))
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#define CLRBIT(x,y) ((x)[LONG(y)] &= ~BIT(y))
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#define ASSIGNBIT(x,y,z) ((x)[LONG(y)] = ((x)[LONG(y)] & ~BIT(y)) | (z << OFF(y)))
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typedef struct _kevdevMouse {
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/* current device state */
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int rel[REL_MAX + 1];
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int abs[ABS_MAX + 1];
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int prevabs[ABS_MAX + 1];
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long key[NBITS(KEY_MAX + 1)];
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/* supported device info */
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long relbits[NBITS(REL_MAX + 1)];
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long absbits[NBITS(ABS_MAX + 1)];
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long keybits[NBITS(KEY_MAX + 1)];
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struct input_absinfo absinfo[ABS_MAX + 1];
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int max_rel;
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int max_abs;
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int fd;
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} Kevdev;
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static void
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EvdevMotion (KdPointerInfo *pi)
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{
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Kevdev *ke = pi->driverPrivate;
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int i;
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for (i = 0; i <= ke->max_rel; i++)
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if (ke->rel[i])
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{
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int a;
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ErrorF ("rel");
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for (a = 0; a <= ke->max_rel; a++)
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{
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if (ISBITSET (ke->relbits, a))
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ErrorF (" %d=%d", a, ke->rel[a]);
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ke->rel[a] = 0;
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}
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ErrorF ("\n");
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break;
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}
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for (i = 0; i < ke->max_abs; i++)
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if (ke->abs[i] != ke->prevabs[i])
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{
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int a;
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ErrorF ("abs");
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for (a = 0; a <= ke->max_abs; a++)
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{
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if (ISBITSET (ke->absbits, a))
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ErrorF (" %d=%d", a, ke->abs[a]);
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ke->prevabs[a] = ke->abs[a];
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}
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ErrorF ("\n");
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break;
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}
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}
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static void
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EvdevRead (int evdevPort, void *closure)
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{
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KdPointerInfo *pi = closure;
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Kevdev *ke = pi->driverPrivate;
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int i;
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struct input_event events[NUM_EVENTS];
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int n;
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n = read (evdevPort, &events, NUM_EVENTS * sizeof (struct input_event));
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if (n <= 0)
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return;
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n /= sizeof (struct input_event);
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for (i = 0; i < n; i++)
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{
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switch (events[i].type) {
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case EV_SYN:
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break;
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case EV_KEY:
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EvdevMotion (pi);
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ASSIGNBIT(ke->key,events[i].code, events[i].value);
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if (events[i].code < 0x100)
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ErrorF ("key %d %d\n", events[i].code, events[i].value);
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else
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ErrorF ("key 0x%x %d\n", events[i].code, events[i].value);
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break;
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case EV_REL:
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ke->rel[events[i].code] += events[i].value;
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break;
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case EV_ABS:
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ke->abs[events[i].code] = events[i].value;
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break;
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}
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}
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EvdevMotion (pi);
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}
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int EvdevInputType;
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char *kdefaultEvdev[] = {
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"/dev/input/event0",
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"/dev/input/event1",
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"/dev/input/event2",
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"/dev/input/event3",
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};
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#define NUM_DEFAULT_EVDEV (sizeof (kdefaultEvdev) / sizeof (kdefaultEvdev[0]))
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static Status
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EvdevInit (KdPointerInfo *pi)
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{
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int i;
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int fd;
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int n = 0;
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char *prot;
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if (!pi->path) {
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for (i = 0; i < NUM_DEFAULT_EVDEV; i++) {
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fd = open (kdefaultEvdev[i], 2);
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if (fd >= 0) {
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pi->path = KdSaveString (kdefaultEvdev[i]);
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break;
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}
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}
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}
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else {
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fd = open (pi->path, 2);
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if (fd < 0) {
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ErrorF("Failed to open evdev device %s\n", pi->path);
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return BadMatch;
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}
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}
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return Success;
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}
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static Status
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EvdevEnable (KdPointerInfo *pi)
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{
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int fd;
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if (!pi || !pi->path)
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return BadImplementation;
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fd = open(pi->path, 2);
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if (fd < 0)
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return BadMatch;
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unsigned long ev[NBITS(EV_MAX)];
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Kevdev *ke;
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if (ioctl (fd, EVIOCGBIT(0 /*EV*/, sizeof (ev)), ev) < 0)
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{
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perror ("EVIOCGBIT 0");
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close (fd);
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return BadMatch;
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}
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ke = xalloc (sizeof (Kevdev));
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if (!ke)
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{
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close (fd);
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return BadAlloc;
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}
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memset (ke, '\0', sizeof (Kevdev));
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if (ISBITSET (ev, EV_KEY))
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{
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if (ioctl (fd, EVIOCGBIT (EV_KEY, sizeof (ke->keybits)),
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ke->keybits) < 0)
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{
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perror ("EVIOCGBIT EV_KEY");
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xfree (ke);
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close (fd);
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return BadMatch;
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}
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}
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if (ISBITSET (ev, EV_REL))
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{
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if (ioctl (fd, EVIOCGBIT (EV_REL, sizeof (ke->relbits)),
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ke->relbits) < 0)
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{
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perror ("EVIOCGBIT EV_REL");
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xfree (ke);
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close (fd);
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return BadMatch;
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}
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for (ke->max_rel = REL_MAX; ke->max_rel >= 0; ke->max_rel--)
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if (ISBITSET(ke->relbits, ke->max_rel))
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break;
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}
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if (ISBITSET (ev, EV_ABS))
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{
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int i;
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if (ioctl (fd, EVIOCGBIT (EV_ABS, sizeof (ke->absbits)),
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ke->absbits) < 0)
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{
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perror ("EVIOCGBIT EV_ABS");
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xfree (ke);
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close (fd);
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return BadMatch;
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}
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for (ke->max_abs = ABS_MAX; ke->max_abs >= 0; ke->max_abs--)
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if (ISBITSET(ke->absbits, ke->max_abs))
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break;
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for (i = 0; i <= ke->max_abs; i++)
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{
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if (ISBITSET (ke->absbits, i))
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if (ioctl (fd, EVIOCGABS(i), &ke->absinfo[i]) < 0)
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{
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perror ("EVIOCGABS");
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break;
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}
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ke->prevabs[i] = ABS_UNSET;
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}
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if (i <= ke->max_abs)
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{
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xfree (ke);
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close (fd);
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return BadValue;
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}
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}
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if (!KdRegisterFd (fd, EvdevRead, pi)) {
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xfree (ke);
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close (fd);
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return BadAlloc;
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}
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pi->driverPrivate = ke;
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return Success;
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}
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static void
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EvdevDisable (KdPointerInfo *pi)
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{
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Kevdev *ke;
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if (!pi || !pi->driverPrivate)
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return;
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KdUnregisterFd (pi, ke->fd, TRUE);
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xfree (ke);
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pi->driverPrivate = 0;
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}
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static void
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EvdevFini (KdPointerInfo *pi)
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{
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}
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KdPointerDriver LinuxEvdevMouseDriver = {
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"evdev",
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EvdevInit,
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EvdevEnable,
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EvdevDisable,
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EvdevFini,
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NULL,
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};
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#if 0
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KdKeyboardFuncs LinuxEvdevKeyboardFuncs = {
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EvdevKbdLoad,
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EvdevKbdInit,
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EvdevKbdLeds,
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EvdevKbdBell,
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EvdevKbdFini,
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0,
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};
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#endif
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