2 * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
5 * This code is derived from software contributed to The DragonFly Project
6 * by Sascha Wildner <saw@online.de>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer as
13 * the first lines of this file unmodified.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
36 #ifndef VGA_NO_MODE_CHANGE
38 #include <sys/param.h>
39 #include <sys/systm.h>
42 #include <sys/kernel.h>
44 #include <sys/consio.h>
46 #include <machine/pc/vesa.h>
48 #include <dev/fb/fbreg.h>
49 #include <dev/syscons/syscons.h>
51 static d_ioctl_t *prev_user_ioctl;
54 vesa_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
63 scp = SC_STAT(tp->t_dev);
67 /* generic text modes */
68 case SW_TEXT_132x25: case SW_TEXT_132x30:
69 case SW_TEXT_132x43: case SW_TEXT_132x50:
71 if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE))
73 return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0, 0);
81 if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE))
83 mode = (cmd & 0xff) + M_VESA_BASE;
84 return sc_set_text_mode(scp, tp, mode, 0, 0, 0, 0);
87 case SW_VESA_32K_320: case SW_VESA_64K_320:
88 case SW_VESA_FULL_320:
90 case SW_VESA_CG640x400:
92 case SW_VESA_CG640x480:
93 case SW_VESA_32K_640: case SW_VESA_64K_640:
94 case SW_VESA_FULL_640:
96 case SW_VESA_800x600: case SW_VESA_CG800x600:
97 case SW_VESA_32K_800: case SW_VESA_64K_800:
98 case SW_VESA_FULL_800:
100 case SW_VESA_1024x768: case SW_VESA_CG1024x768:
101 case SW_VESA_32K_1024: case SW_VESA_64K_1024:
102 case SW_VESA_FULL_1024:
104 case SW_VESA_1280x1024: case SW_VESA_CG1280x1024:
105 case SW_VESA_32K_1280: case SW_VESA_64K_1280:
106 case SW_VESA_FULL_1280:
107 if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE))
109 mode = (cmd & 0xff) + M_VESA_BASE;
110 return sc_set_graphics_mode(scp, tp, mode);
112 if (IOCGROUP(cmd) == 'V') {
113 if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE))
116 mode = (cmd & 0xff) + M_VESA_BASE;
118 if (((cmd & IOC_DIRMASK) == IOC_VOID) &&
119 (mode > M_VESA_FULL_1280) &&
120 (mode < M_VESA_MODE_MAX))
121 return sc_set_graphics_mode(scp, tp, mode);
126 return (*prev_user_ioctl)(dev, cmd, data, flag, td);
132 vesa_load_ioctl(void)
136 prev_user_ioctl = sc_user_ioctl;
137 sc_user_ioctl = vesa_ioctl;
142 vesa_unload_ioctl(void)
144 if (sc_user_ioctl != vesa_ioctl)
146 sc_user_ioctl = prev_user_ioctl;
147 prev_user_ioctl = NULL;
151 #endif /* VGA_NO_MODE_CHANGE */