137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
/*
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* $RCSId: xc/programs/Xserver/hw/kdrive/linux/bus.c,v 1.2 2001/06/29 14:00:41 keithp Exp $
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*
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* Copyright © 2000 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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/* /dev/adbmouse is a busmouse */
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static void
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BusRead (int adbPort, void *closure)
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{
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unsigned char buf[3];
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int n;
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int dx, dy;
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unsigned long flags;
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n = read (adbPort, buf, 3);
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if (n == 3)
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{
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flags = KD_MOUSE_DELTA;
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dx = (char) buf[1];
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dy = -(char) buf[2];
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if ((buf[0] & 4) == 0)
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flags |= KD_BUTTON_1;
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if ((buf[0] & 2) == 0)
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flags |= KD_BUTTON_2;
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if ((buf[0] & 1) == 0)
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flags |= KD_BUTTON_3;
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KdEnqueuePointerEvent (closure, flags, dx, dy, 0);
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}
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}
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char *BusNames[] = {
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"/dev/adbmouse",
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"/dev/mouse",
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};
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#define NUM_BUS_NAMES (sizeof (BusNames) / sizeof (BusNames[0]))
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static int
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BusInit (KdPointerInfo *pi)
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{
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int i, fd = 0;
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if (!pi->path || (strcmp(pi->path, "auto") == 0))
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{
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for (i = 0; i < NUM_BUS_NAMES; i++)
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{
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if ((fd = open (BusNames[i], 0)) > 0)
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{
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close(fd);
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if (pi->path)
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xfree(pi->path);
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pi->path = KdSaveString(BusNames[i]);
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return Success;
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}
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}
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}
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else
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{
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if ((fd = open(pi->path, 0)) > 0)
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{
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close(fd);
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return Success;
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}
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}
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return !Success;
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}
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static int
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BusEnable (KdPointerInfo *pi)
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{
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int fd = open(pi->path, 0);
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if (fd > 0)
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{
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KdRegisterFd(fd, BusRead, pi);
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pi->driverPrivate = (void *)fd;
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return Success;
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}
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else
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{
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return !Success;
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}
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}
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static void
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BusDisable (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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BusFini (KdPointerInfo *pi)
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{
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return;
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}
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KdPointerDriver BusMouseDriver = {
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"bus",
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BusInit,
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BusEnable,
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BusDisable,
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BusFini,
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NULL
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};
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