xserver-multidpi/hw/xfree86/os-support/sco/VTsw_sco.c
Paulo Cesar Pereira de Andrade 49f77fff14 Rework symbol visibility for easier maintenance
Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).
2008-12-03 05:43:34 -02:00

118 lines
3.4 KiB
C

/*
* Copyright 1993 by David Wexelblat <dwex@goblin.org>
* Copyright 1993 by David McCullough <davidm@stallion.oz.au>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of David Wexelblat not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. David Wexelblat makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL DAVID WEXELBLAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86_OSlib.h"
/* For the event driver prototypes */
#include <sys/event.h>
#include <mouse.h>
/*
* Handle the VT-switching interface for SCO
*/
/*
* This function is the signal handler for the VT-switching signal. It
* is only referenced inside the OS-support layer. NOTE: we do NOT need
* to re-arm the signal here, since we used sigaction() to set the signal
* disposition in sco_init.c. If we had used signal(), we would need to
* re-arm the signal here. All we need to do now is record the fact that
* we got the signal. XFree86 handles the rest.
*/
void
xf86VTRequest(int sig)
{
xf86Info.vtRequestsPending = TRUE;
return;
}
Bool
xf86VTSwitchPending(void)
{
return(xf86Info.vtRequestsPending ? TRUE : FALSE);
}
/*
* When we switch away, we need to flush and suspend the event driver
* before the VT_RELDISP. We also need to get the current LED status
* and preserve it, so that we can restore it when we come back.
*/
static int sco_ledstatus = -1;
static unsigned int sco_ledstate = 0;
Bool
xf86VTSwitchAway(void)
{
ev_flush();
ev_suspend();
sco_ledstatus = ioctl(xf86Info.consoleFd, KDGETLED, &sco_ledstate);
xf86Info.vtRequestsPending = FALSE;
if (ioctl(xf86Info.consoleFd, VT_RELDISP, VT_TRUE) < 0) {
return(FALSE);
} else {
return(TRUE);
}
}
/*
* When we come back to the X server, we need to resume the event driver,
* and we need to restore the LED settings to what they were when we
* switched away.
*/
Bool
xf86VTSwitchTo(void)
{
ev_resume();
xf86Info.vtRequestsPending = FALSE;
if (ioctl(xf86Info.consoleFd, VT_RELDISP, VT_ACKACQ) < 0) {
return(FALSE);
} else {
if (sco_ledstatus >= 0) {
ioctl (xf86Info.consoleFd, KDSETLED, sco_ledstate);
}
sco_ledstatus = -1;
/*
* Convince the console driver this screen is in graphics mode,
* otherwise it assumes it can do more to the screen than it should.
*/
if (ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS) < 0) {
ErrorF("Failed to set graphics mode (%s)\n", strerror(errno));
}
return TRUE;
}
}