NetBSD/usr.sbin/tpctl/tp.c

195 lines
4.6 KiB
C

/* $NetBSD: tp.c,v 1.9 2009/04/28 10:57:24 nonaka Exp $ */
/*-
* Copyright (c) 2002, 2003 TAKEMRUA Shin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/fcntl.h>
#include <sys/mman.h>
#include <errno.h>
#include <unistd.h>
#include "tpctl.h"
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#ifndef lint
#include <sys/cdefs.h>
__RCSID("$NetBSD: tp.c,v 1.9 2009/04/28 10:57:24 nonaka Exp $");
#endif /* not lint */
int
tp_init(struct tp *tp, int fd)
{
u_int flags;
struct wsmouse_calibcoords calibcoords;
struct wsmouse_id id;
#ifdef WSMOUSEIO_SETVERSION
int version = WSMOUSE_EVENT_VERSION;
if (ioctl(fd, WSMOUSEIO_SETVERSION, &version) == -1) {
return (-1);
}
#endif
tp->fd = fd;
#if 0
if (ioctl(tp->fd, WSMOUSEIO_GTYPE, &type) < 0)
return (-1);
if (type != WSMOUSE_TYPE_TPANEL) {
errno = EINVAL;
return (-1);
}
#else
if (ioctl(tp->fd, WSMOUSEIO_GCALIBCOORDS, &calibcoords) < 0)
return (-1);
#endif
flags = fcntl(tp->fd, F_GETFL);
if (flags == (u_int)-1)
return (-1);
flags |= O_NONBLOCK;
if (fcntl(tp->fd, F_SETFL, flags) < 0)
return (-1);
id.type = WSMOUSE_ID_TYPE_UIDSTR;
if (ioctl(tp->fd, WSMOUSEIO_GETID, &id) == 0) {
(void)strlcpy(tp->id, (char *)id.data,
MIN(sizeof(tp->id), id.length));
} else {
tp->id[0] = '*';
tp->id[1] = '\0';
}
return (0);
}
int
tp_setrawmode(struct tp *tp)
{
struct wsmouse_calibcoords raw;
memset(&raw, 0, sizeof(raw));
raw.samplelen = WSMOUSE_CALIBCOORDS_RESET;
return ioctl(tp->fd, WSMOUSEIO_SCALIBCOORDS, &raw);
}
int
tp_setcalibcoords(struct tp *tp, struct wsmouse_calibcoords *calibcoords)
{
return ioctl(tp->fd, WSMOUSEIO_SCALIBCOORDS, calibcoords);
}
int
tp_flush(struct tp *tp)
{
struct wscons_event ev;
int count;
count = 0;
while (read(tp->fd, &ev, sizeof(ev)) == sizeof(ev)) {
switch (ev.type) {
case WSCONS_EVENT_MOUSE_UP:
case WSCONS_EVENT_MOUSE_DOWN:
case WSCONS_EVENT_MOUSE_DELTA_X:
case WSCONS_EVENT_MOUSE_DELTA_Y:
case WSCONS_EVENT_MOUSE_ABSOLUTE_X:
case WSCONS_EVENT_MOUSE_ABSOLUTE_Y:
case WSCONS_EVENT_MOUSE_DELTA_Z:
case WSCONS_EVENT_MOUSE_ABSOLUTE_Z:
count++;
break;
default:
break;
}
}
return (count);
}
int
tp_get(struct tp *tp, int *x, int *y, int (*cancel)(void *), void *data)
{
struct wscons_event ev;
int x_done, y_done, res;
x_done = y_done = 0;
while (1) {
if (cancel != NULL && (res = (*cancel)(data)) != 0)
return (res);
if ((res = read(tp->fd, &ev, sizeof(ev))) < 0) {
if (errno != EWOULDBLOCK)
return (-1);
continue;
}
if (res != sizeof(ev)) {
errno = EINVAL;
return (-1);
}
switch (ev.type) {
case WSCONS_EVENT_MOUSE_ABSOLUTE_X:
*x = ev.value;
if (y_done)
return (0);
x_done = 1;
break;
case WSCONS_EVENT_MOUSE_ABSOLUTE_Y:
*y = ev.value;
if (x_done)
return (0);
y_done = 1;
break;
default:
break;
}
}
}
int
tp_waitup(struct tp *tp, int msec, int (*cancel)(void*), void *data)
{
int res;
while (1) {
if (cancel != NULL && (res = (*cancel)(data)) != 0)
return (res);
usleep(msec * 1000);
if (tp_flush(tp) == 0)
break;
}
return (0);
}