scvesactl.c revision 39668 
11096SN/A/*-
26073SN/A * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
31096SN/A * All rights reserved.
41096SN/A *
51096SN/A * Redistribution and use in source and binary forms, with or without
61096SN/A * modification, are permitted provided that the following conditions
72362SN/A * are met:
81096SN/A * 1. Redistributions of source code must retain the above copyright
92362SN/A *    notice, this list of conditions and the following disclaimer as
101096SN/A *    the first lines of this file unmodified.
111096SN/A * 2. Redistributions in binary form must reproduce the above copyright
121096SN/A *    notice, this list of conditions and the following disclaimer in the
131096SN/A *    documentation and/or other materials provided with the distribution.
141096SN/A *
151096SN/A * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
161096SN/A * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
171096SN/A * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
181096SN/A * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
191096SN/A * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
201096SN/A * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
212362SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
222362SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
232362SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
241096SN/A * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
251096SN/A *
265012SN/A * $Id: scvesactl.c,v 1.4 1998/09/26 03:34:10 yokota Exp $
271096SN/A */
281096SN/A
291096SN/A#include "sc.h"
301096SN/A#include "opt_vesa.h"
311096SN/A#include "opt_vm86.h"
321096SN/A
331096SN/A#if (NSC > 0 && defined(VESA) && defined(VM86)) || defined(VESA_MODULE)
341096SN/A
355012SN/A#include <sys/param.h>
361096SN/A#include <sys/systm.h>
371096SN/A#include <sys/conf.h>
381096SN/A#include <sys/tty.h>
395012SN/A#include <sys/kernel.h>
401096SN/A
411096SN/A#include <machine/apm_bios.h>
421096SN/A#include <machine/console.h>
431096SN/A#include <machine/pc/vesa.h>
441096SN/A
455012SN/A#include <i386/isa/videoio.h>
461096SN/A#include <i386/isa/syscons.h>
471096SN/A
481096SN/Astatic d_ioctl_t *prev_user_ioctl;
495012SN/A
501096SN/Astatic int
511096SN/Avesa_ioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
521096SN/A{
531096SN/A	scr_stat *scp;
54	struct tty *tp;
55	video_info_t info;
56	video_adapter_t *adp;
57	int mode;
58	int error;
59	int s;
60
61	tp = scdevtotty(dev);
62	if (!tp)
63		return ENXIO;
64	scp = sc_get_scr_stat(tp->t_dev);
65
66	switch (cmd) {
67	case SW_VESA_USER:
68
69		mode = (int)data;
70		if ((*biosvidsw.get_info)(scp->adp, mode, &info))
71			return ENODEV;
72		if (info.vi_flags & V_INFO_GRAPHICS)
73			goto vesa_graphics;
74		else
75			goto vesa_text;
76
77	/* generic text modes */
78	case SW_TEXT_132x25: case SW_TEXT_132x30:
79	case SW_TEXT_132x43: case SW_TEXT_132x50:
80	case SW_TEXT_132x60:
81		adp = get_adapter(scp);
82		if (!(adp->va_flags & V_ADP_MODECHANGE))
83			return ENODEV;
84		return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0);
85
86	/* text modes */
87	case SW_VESA_C80x60:
88	case SW_VESA_C132x25:
89	case SW_VESA_C132x43:
90	case SW_VESA_C132x50:
91	case SW_VESA_C132x60:
92		adp = get_adapter(scp);
93		if (!(adp->va_flags & V_ADP_MODECHANGE))
94			return ENODEV;
95		mode = (cmd & 0xff) + M_VESA_BASE;
96vesa_text:
97		return sc_set_text_mode(scp, tp, mode, 0, 0, 0);
98
99	/* graphics modes */
100	case SW_VESA_32K_320: 	case SW_VESA_64K_320:
101	case SW_VESA_FULL_320:
102
103	case SW_VESA_CG640x400:
104
105	case SW_VESA_CG640x480:
106	case SW_VESA_32K_640:	case SW_VESA_64K_640:
107	case SW_VESA_FULL_640:
108
109	case SW_VESA_800x600:	case SW_VESA_CG800x600:
110	case SW_VESA_32K_800:	case SW_VESA_64K_800:
111	case SW_VESA_FULL_800:
112
113	case SW_VESA_1024x768:	case SW_VESA_CG1024x768:
114	case SW_VESA_32K_1024:	case SW_VESA_64K_1024:
115	case SW_VESA_FULL_1024:
116
117	case SW_VESA_1280x1024:	case SW_VESA_CG1280x1024:
118	case SW_VESA_32K_1280:	case SW_VESA_64K_1280:
119	case SW_VESA_FULL_1280:
120		adp = get_adapter(scp);
121		if (!(adp->va_flags & V_ADP_MODECHANGE))
122			return ENODEV;
123		mode = (cmd & 0xff) + M_VESA_BASE;
124vesa_graphics:
125		return sc_set_graphics_mode(scp, tp, mode);
126	}
127
128	if (prev_user_ioctl)
129		return (*prev_user_ioctl)(dev, cmd, data, flag, p);
130	else
131		return ENOIOCTL;
132}
133
134int
135vesa_load_ioctl(void)
136{
137	if (prev_user_ioctl)
138		return EBUSY;
139	prev_user_ioctl = sc_user_ioctl;
140	sc_user_ioctl = vesa_ioctl;
141	return 0;
142}
143
144int
145vesa_unload_ioctl(void)
146{
147	if (sc_user_ioctl != vesa_ioctl)
148		return EBUSY;
149	sc_user_ioctl = prev_user_ioctl;
150	prev_user_ioctl = NULL;
151	return 0;
152}
153
154#endif /* (NSC > 0 && VESA && VM86) || VESA_MODULE */
155