1 /*- 2 * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include "opt_vga.h" 30 31 #ifndef VGA_NO_MODE_CHANGE 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/conf.h> 36 #include <sys/tty.h> 37 #include <sys/kernel.h> 38 39 #include <machine/console.h> 40 #include <machine/pc/vesa.h> 41 42 #include <dev/fb/fbreg.h> 43 #include <dev/syscons/syscons.h> 44 45 static d_ioctl_t *prev_user_ioctl; 46 47 static int 48 vesa_ioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) 49 { 50 scr_stat *scp; 51 struct tty *tp; 52 int mode; 53 54 tp = dev->si_tty; 55 if (!tp) 56 return ENXIO; 57 scp = SC_STAT(tp->t_dev); 58 59 switch (cmd) { 60 61 /* generic text modes */ 62 case SW_TEXT_132x25: case SW_TEXT_132x30: 63 case SW_TEXT_132x43: case SW_TEXT_132x50: 64 case SW_TEXT_132x60: 65 if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE)) 66 return ENODEV; 67 return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0); 68 69 /* text modes */ 70 case SW_VESA_C80x60: 71 case SW_VESA_C132x25: 72 case SW_VESA_C132x43: 73 case SW_VESA_C132x50: 74 case SW_VESA_C132x60: 75 if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE)) 76 return ENODEV; 77 mode = (cmd & 0xff) + M_VESA_BASE; 78 return sc_set_text_mode(scp, tp, mode, 0, 0, 0); 79 80 /* graphics modes */ 81 case SW_VESA_32K_320: case SW_VESA_64K_320: 82 case SW_VESA_FULL_320: 83 84 case SW_VESA_CG640x400: 85 86 case SW_VESA_CG640x480: 87 case SW_VESA_32K_640: case SW_VESA_64K_640: 88 case SW_VESA_FULL_640: 89 90 case SW_VESA_800x600: case SW_VESA_CG800x600: 91 case SW_VESA_32K_800: case SW_VESA_64K_800: 92 case SW_VESA_FULL_800: 93 94 case SW_VESA_1024x768: case SW_VESA_CG1024x768: 95 case SW_VESA_32K_1024: case SW_VESA_64K_1024: 96 case SW_VESA_FULL_1024: 97 98 case SW_VESA_1280x1024: case SW_VESA_CG1280x1024: 99 case SW_VESA_32K_1280: case SW_VESA_64K_1280: 100 case SW_VESA_FULL_1280: 101 if (!(scp->sc->adp->va_flags & V_ADP_MODECHANGE)) 102 return ENODEV; 103 mode = (cmd & 0xff) + M_VESA_BASE; 104 return sc_set_graphics_mode(scp, tp, mode); 105 } 106 107 if (prev_user_ioctl) 108 return (*prev_user_ioctl)(dev, cmd, data, flag, p); 109 else 110 return ENOIOCTL; 111 } 112 113 int 114 vesa_load_ioctl(void) 115 { 116 if (prev_user_ioctl) 117 return EBUSY; 118 prev_user_ioctl = sc_user_ioctl; 119 sc_user_ioctl = vesa_ioctl; 120 return 0; 121 } 122 123 int 124 vesa_unload_ioctl(void) 125 { 126 if (sc_user_ioctl != vesa_ioctl) 127 return EBUSY; 128 sc_user_ioctl = prev_user_ioctl; 129 prev_user_ioctl = NULL; 130 return 0; 131 } 132 133 #endif /* SC_NO_MODE_CHANGE */ 134