| 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 | */ |
| 43 | void |
| 44 | xf86VTRequest(int sig) |
| 45 | { |
| 46 | signal(sig, (void (*)(int)) xf86VTRequest); |
| 47 | xf86Info.vtRequestsPending = TRUE; |
| 48 | return; |
| 49 | } |
| 50 | |
| 51 | Bool |
| 52 | xf86VTSwitchPending(void) |
| 53 | { |
| 54 | return xf86Info.vtRequestsPending ? TRUE : FALSE; |
| 55 | } |
| 56 | |
| 57 | Bool |
| 58 | xf86VTSwitchAway(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 | |
| 67 | Bool |
| 68 | xf86VTSwitchTo(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 | |
| 77 | Bool |
| 78 | xf86VTActivate(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 | } |