1/*
2 * Copyright 1993 by David Wexelblat <dwex@XFree86.org>
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of David Wexelblat not be used in
9 * advertising or publicity pertaining to distribution of the software without
10 * specific, written prior permission.  David Wexelblat makes no representations
11 * about the suitability of this software for any purpose.  It is provided
12 * "as is" without express or implied warranty.
13 *
14 * DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL DAVID WEXELBLAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
20 * PERFORMANCE OF THIS SOFTWARE.
21 *
22 */
23
24#ifdef HAVE_XORG_CONFIG_H
25#include <xorg-config.h>
26#endif
27
28#include <X11/X.h>
29
30#include "xf86.h"
31#include "xf86Priv.h"
32#include "xf86_OSlib.h"
33
34/*
35 * Handle the VT-switching interface for OSs that use USL-style ioctl()s
36 * (the sysv, sco, and linux subdirs).
37 */
38
39/*
40 * This function is the signal handler for the VT-switching signal.  It
41 * is only referenced inside the OS-support layer.
42 */
43void
44xf86VTRequest(int sig)
45{
46    OsSignal(sig, (void (*)(int)) xf86VTRequest);
47    xf86Info.vtRequestsPending = TRUE;
48    return;
49}
50
51Bool
52xf86VTSwitchPending(void)
53{
54    return xf86Info.vtRequestsPending ? TRUE : FALSE;
55}
56
57Bool
58xf86VTSwitchAway(void)
59{
60    xf86Info.vtRequestsPending = FALSE;
61    if (ioctl(xf86Info.consoleFd, VT_RELDISP, 1) < 0)
62        return FALSE;
63    else
64        return TRUE;
65}
66
67Bool
68xf86VTSwitchTo(void)
69{
70    xf86Info.vtRequestsPending = FALSE;
71    if (ioctl(xf86Info.consoleFd, VT_RELDISP, VT_ACKACQ) < 0)
72        return FALSE;
73    else
74        return TRUE;
75}
76
77Bool
78xf86VTActivate(int vtno)
79{
80#ifdef VT_ACTIVATE
81    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, vtno) < 0) {
82        return FALSE;
83    }
84#endif
85    return TRUE;
86}
87