118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
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/*
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* Copyright 1993 by David Wexelblat <dwex@goblin.org>
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* Copyright 1993 by David McCullough <davidm@stallion.oz.au>
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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 David Wexelblat 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. David Wexelblat makes no representations
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* about the suitability of this software for any purpose. It is provided
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* "as is" without express or implied warranty.
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*
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* DAVID WEXELBLAT 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 DAVID WEXELBLAT 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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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include "xf86.h"
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#include "xf86Priv.h"
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#include "xf86_OSlib.h"
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/* For the event driver prototypes */
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#include <sys/event.h>
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#include <mouse.h>
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/*
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* Handle the VT-switching interface for SCO
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*/
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/*
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* This function is the signal handler for the VT-switching signal. It
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* is only referenced inside the OS-support layer. NOTE: we do NOT need
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* to re-arm the signal here, since we used sigaction() to set the signal
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* disposition in sco_init.c. If we had used signal(), we would need to
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* re-arm the signal here. All we need to do now is record the fact that
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* we got the signal. XFree86 handles the rest.
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*/
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void
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xf86VTRequest(int sig)
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{
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xf86Info.vtRequestsPending = TRUE;
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return;
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}
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Bool
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xf86VTSwitchPending(void)
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{
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return(xf86Info.vtRequestsPending ? TRUE : FALSE);
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}
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/*
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* When we switch away, we need to flush and suspend the event driver
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* before the VT_RELDISP. We also need to get the current LED status
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* and preserve it, so that we can restore it when we come back.
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*/
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static int sco_ledstatus = -1;
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static unsigned int sco_ledstate = 0;
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Bool
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xf86VTSwitchAway(void)
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{
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ev_flush();
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ev_suspend();
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sco_ledstatus = ioctl(xf86Info.consoleFd, KDGETLED, &sco_ledstate);
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xf86Info.vtRequestsPending = FALSE;
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if (ioctl(xf86Info.consoleFd, VT_RELDISP, VT_TRUE) < 0) {
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return(FALSE);
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} else {
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return(TRUE);
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}
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}
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/*
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* When we come back to the X server, we need to resume the event driver,
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* and we need to restore the LED settings to what they were when we
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* switched away.
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*/
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Bool
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xf86VTSwitchTo(void)
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{
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ev_resume();
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xf86Info.vtRequestsPending = FALSE;
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if (ioctl(xf86Info.consoleFd, VT_RELDISP, VT_ACKACQ) < 0) {
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return(FALSE);
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} else {
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if (sco_ledstatus >= 0) {
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ioctl (xf86Info.consoleFd, KDSETLED, sco_ledstate);
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}
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sco_ledstatus = -1;
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/*
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* Convince the console driver this screen is in graphics mode,
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* otherwise it assumes it can do more to the screen than it should.
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*/
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if (ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS) < 0) {
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ErrorF("Failed to set graphics mode (%s)\n", strerror(errno));
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}
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return TRUE;
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}
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}
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