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fe28039ff4
your code) Other warning fixes (unused variables, etc) Get rid of
unused extension interfaces (aux screen procs) Make lots of functions
in kdrive static Eliminate unused code from os library
153 lines
3.4 KiB
C
153 lines
3.4 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 <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, 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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KdEnqueueMouseEvent (kdMouseInfo, flags, dx, dy);
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}
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}
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}
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int Ps2InputType;
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static int
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Ps2Init (void)
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{
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int i;
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int ps2Port;
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int n;
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if (!Ps2InputType)
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Ps2InputType = KdAllocInputType ();
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n = 0;
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for (i = 0; i < NUM_PS2_NAMES; i++)
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{
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ps2Port = open (Ps2Names[i], 0);
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if (ps2Port >= 0)
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{
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if (KdRegisterFd (Ps2InputType, ps2Port, Ps2Read, (void *) i))
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n++;
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}
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}
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return n;
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}
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static void
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Ps2Fini (void)
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{
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KdUnregisterFds (Ps2InputType, TRUE);
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}
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KdMouseFuncs Ps2MouseFuncs = {
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Ps2Init,
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Ps2Fini
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};
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