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.
190 lines
4.0 KiB
C
190 lines
4.0 KiB
C
/*
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* $RCSId: xc/programs/Xserver/hw/kdrive/linux/ps2.c,v 1.6 2001/10/12 06:33:10 keithp Exp $
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*
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* Copyright © 1999 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 <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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static int
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Ps2ReadBytes (int fd, char *buf, int len, int min)
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{
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int n, tot;
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fd_set set;
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struct timeval tv;
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tot = 0;
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while (len)
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{
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n = read (fd, buf, len);
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if (n > 0)
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{
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tot += n;
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buf += n;
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len -= n;
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}
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if (tot % min == 0)
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break;
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FD_ZERO (&set);
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FD_SET (fd, &set);
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tv.tv_sec = 0;
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tv.tv_usec = 100 * 1000;
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n = select (fd + 1, &set, 0, 0, &tv);
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if (n <= 0)
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break;
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}
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return tot;
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}
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char *Ps2Names[] = {
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"/dev/psaux",
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/* "/dev/mouse", */
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"/dev/input/mice",
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};
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#define NUM_PS2_NAMES (sizeof (Ps2Names) / sizeof (Ps2Names[0]))
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static void
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Ps2Read (int ps2Port, void *closure)
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{
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unsigned char buf[3 * 200];
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unsigned char *b;
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int n;
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int dx, dy;
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unsigned long flags;
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unsigned long left_button = KD_BUTTON_1;
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unsigned long right_button = KD_BUTTON_3;
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#undef SWAP_USB
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#ifdef SWAP_USB
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if (id == 2)
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{
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left_button = KD_BUTTON_3;
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right_button = KD_BUTTON_1;
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}
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#endif
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while ((n = Ps2ReadBytes (ps2Port, (char *) buf, sizeof (buf), 3)) > 0)
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{
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b = buf;
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while (n >= 3)
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{
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flags = KD_MOUSE_DELTA;
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if (b[0] & 4)
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flags |= KD_BUTTON_2;
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if (b[0] & 2)
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flags |= right_button;
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if (b[0] & 1)
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flags |= left_button;
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dx = b[1];
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if (b[0] & 0x10)
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dx -= 256;
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dy = b[2];
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if (b[0] & 0x20)
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dy -= 256;
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dy = -dy;
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n -= 3;
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b += 3;
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KdEnqueuePointerEvent (closure, flags, dx, dy, 0);
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}
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}
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}
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static Status
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Ps2Init (KdPointerInfo *pi)
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{
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int ps2Port, i;
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if (!pi->path) {
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for (i = 0; i < NUM_PS2_NAMES; i++) {
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ps2Port = open (Ps2Names[i], 0);
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if (ps2Port >= 0) {
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pi->path = KdSaveString (Ps2Names[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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ps2Port = open (pi->path, 0);
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}
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if (ps2Port < 0)
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return BadMatch;
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close(ps2Port);
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if (!pi->name)
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pi->name = KdSaveString ("PS/2 Mouse");
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return Success;
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}
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static Status
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Ps2Enable (KdPointerInfo *pi)
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{
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int fd;
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if (!pi)
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return BadImplementation;
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fd = open (pi->path, 0);
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if (fd < 0)
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return BadMatch;
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if (!KdRegisterFd (fd, Ps2Read, pi)) {
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close(fd);
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return BadAlloc;
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}
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pi->driverPrivate = (void *)fd;
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return Success;
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}
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static void
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Ps2Disable (KdPointerInfo *pi)
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{
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KdUnregisterFd (pi, (int)pi->driverPrivate, TRUE);
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}
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static void
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Ps2Fini (KdPointerInfo *pi)
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{
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}
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KdPointerDriver Ps2MouseDriver = {
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"ps2",
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Ps2Init,
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Ps2Enable,
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Ps2Disable,
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Ps2Fini,
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NULL,
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};
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