86330afe35
by explicitly setting sc->font_width, in the same places where sc->font_size is set, instead of relying on the default initialized value of 0 for sc->font_width. PR: kern/84836 Reported by: Andrey V. Elsukov <bu7cher at yandex dot ru> MFC after: 2 days
153 lines
4.1 KiB
C
153 lines
4.1 KiB
C
/*-
|
|
* Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The DragonFly Project
|
|
* by Sascha Wildner <saw@online.de>
|
|
*
|
|
* 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 as
|
|
* the first lines of this file unmodified.
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_vga.h"
|
|
|
|
#ifndef VGA_NO_MODE_CHANGE
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/tty.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/fbio.h>
|
|
#include <sys/consio.h>
|
|
|
|
#include <machine/pc/vesa.h>
|
|
|
|
#include <dev/fb/fbreg.h>
|
|
#include <dev/syscons/syscons.h>
|
|
|
|
static d_ioctl_t *prev_user_ioctl;
|
|
|
|
static int
|
|
vesa_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
|
|
{
|
|
scr_stat *scp;
|
|
struct tty *tp;
|
|
int mode;
|
|
|
|
tp = dev->si_tty;
|
|
if (!tp)
|
|
return ENXIO;
|
|
scp = SC_STAT(tp->t_dev);
|
|
|
|
switch (cmd) {
|
|
|
|
/* generic text modes */
|
|
case SW_TEXT_132x25: case SW_TEXT_132x30:
|
|
case SW_TEXT_132x43: case SW_TEXT_132x50:
|
|
case SW_TEXT_132x60:
|
|
if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE))
|
|
return ENODEV;
|
|
return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0, 0);
|
|
|
|
/* text modes */
|
|
case SW_VESA_C80x60:
|
|
case SW_VESA_C132x25:
|
|
case SW_VESA_C132x43:
|
|
case SW_VESA_C132x50:
|
|
case SW_VESA_C132x60:
|
|
if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE))
|
|
return ENODEV;
|
|
mode = (cmd & 0xff) + M_VESA_BASE;
|
|
return sc_set_text_mode(scp, tp, mode, 0, 0, 0, 0);
|
|
|
|
/* graphics modes */
|
|
case SW_VESA_32K_320: case SW_VESA_64K_320:
|
|
case SW_VESA_FULL_320:
|
|
|
|
case SW_VESA_CG640x400:
|
|
|
|
case SW_VESA_CG640x480:
|
|
case SW_VESA_32K_640: case SW_VESA_64K_640:
|
|
case SW_VESA_FULL_640:
|
|
|
|
case SW_VESA_800x600: case SW_VESA_CG800x600:
|
|
case SW_VESA_32K_800: case SW_VESA_64K_800:
|
|
case SW_VESA_FULL_800:
|
|
|
|
case SW_VESA_1024x768: case SW_VESA_CG1024x768:
|
|
case SW_VESA_32K_1024: case SW_VESA_64K_1024:
|
|
case SW_VESA_FULL_1024:
|
|
|
|
case SW_VESA_1280x1024: case SW_VESA_CG1280x1024:
|
|
case SW_VESA_32K_1280: case SW_VESA_64K_1280:
|
|
case SW_VESA_FULL_1280:
|
|
if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE))
|
|
return ENODEV;
|
|
mode = (cmd & 0xff) + M_VESA_BASE;
|
|
return sc_set_graphics_mode(scp, tp, mode);
|
|
default:
|
|
if (IOCGROUP(cmd) == 'V') {
|
|
if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE))
|
|
return ENODEV;
|
|
|
|
mode = (cmd & 0xff) + M_VESA_BASE;
|
|
|
|
/* Only set graphics mode in non-pcvt case */
|
|
if (((cmd & IOC_DIRMASK) == IOC_VOID) &&
|
|
(mode > M_VESA_FULL_1280) &&
|
|
(mode < M_VESA_MODE_MAX))
|
|
return sc_set_graphics_mode(scp, tp, mode);
|
|
}
|
|
}
|
|
|
|
if (prev_user_ioctl)
|
|
return (*prev_user_ioctl)(dev, cmd, data, flag, td);
|
|
else
|
|
return ENOIOCTL;
|
|
}
|
|
|
|
int
|
|
vesa_load_ioctl(void)
|
|
{
|
|
if (prev_user_ioctl)
|
|
return EBUSY;
|
|
prev_user_ioctl = sc_user_ioctl;
|
|
sc_user_ioctl = vesa_ioctl;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
vesa_unload_ioctl(void)
|
|
{
|
|
if (sc_user_ioctl != vesa_ioctl)
|
|
return EBUSY;
|
|
sc_user_ioctl = prev_user_ioctl;
|
|
prev_user_ioctl = NULL;
|
|
return 0;
|
|
}
|
|
|
|
#endif /* SC_NO_MODE_CHANGE */
|