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 * $Id: $ 27 */ 28 29 #include "sc.h" 30 #include "vga.h" 31 #include "opt_syscons.h" 32 #include "opt_vga.h" 33 #include "opt_vesa.h" 34 #include "opt_vm86.h" 35 36 #ifdef VGA_NO_MODE_CHANGE 37 #undef VESA 38 #endif 39 40 #if (NSC > 0 && NVGA > 0 && defined(VESA) && defined(VM86)) || defined(KLD_MODULE) 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/conf.h> 45 #include <sys/tty.h> 46 #include <sys/kernel.h> 47 48 #include <machine/apm_bios.h> 49 #include <machine/console.h> 50 #include <machine/pc/vesa.h> 51 52 #include <dev/fb/fbreg.h> 53 #include <dev/syscons/syscons.h> 54 55 static d_ioctl_t *prev_user_ioctl; 56 57 static int 58 vesa_ioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) 59 { 60 scr_stat *scp; 61 struct tty *tp; 62 int mode; 63 64 tp = scdevtotty(dev); 65 if (!tp) 66 return ENXIO; 67 scp = sc_get_scr_stat(tp->t_dev); 68 69 switch (cmd) { 70 71 /* generic text modes */ 72 case SW_TEXT_132x25: case SW_TEXT_132x30: 73 case SW_TEXT_132x43: case SW_TEXT_132x50: 74 case SW_TEXT_132x60: 75 if (!(scp->adp->va_flags & V_ADP_MODECHANGE)) 76 return ENODEV; 77 return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0); 78 79 /* text modes */ 80 case SW_VESA_C80x60: 81 case SW_VESA_C132x25: 82 case SW_VESA_C132x43: 83 case SW_VESA_C132x50: 84 case SW_VESA_C132x60: 85 if (!(scp->adp->va_flags & V_ADP_MODECHANGE)) 86 return ENODEV; 87 mode = (cmd & 0xff) + M_VESA_BASE; 88 return sc_set_text_mode(scp, tp, mode, 0, 0, 0); 89 90 /* graphics modes */ 91 case SW_VESA_32K_320: case SW_VESA_64K_320: 92 case SW_VESA_FULL_320: 93 94 case SW_VESA_CG640x400: 95 96 case SW_VESA_CG640x480: 97 case SW_VESA_32K_640: case SW_VESA_64K_640: 98 case SW_VESA_FULL_640: 99 100 case SW_VESA_800x600: case SW_VESA_CG800x600: 101 case SW_VESA_32K_800: case SW_VESA_64K_800: 102 case SW_VESA_FULL_800: 103 104 case SW_VESA_1024x768: case SW_VESA_CG1024x768: 105 case SW_VESA_32K_1024: case SW_VESA_64K_1024: 106 case SW_VESA_FULL_1024: 107 108 case SW_VESA_1280x1024: case SW_VESA_CG1280x1024: 109 case SW_VESA_32K_1280: case SW_VESA_64K_1280: 110 case SW_VESA_FULL_1280: 111 if (!(scp->adp->va_flags & V_ADP_MODECHANGE)) 112 return ENODEV; 113 mode = (cmd & 0xff) + M_VESA_BASE; 114 return sc_set_graphics_mode(scp, tp, mode); 115 } 116 117 if (prev_user_ioctl) 118 return (*prev_user_ioctl)(dev, cmd, data, flag, p); 119 else 120 return ENOIOCTL; 121 } 122 123 int 124 vesa_load_ioctl(void) 125 { 126 if (prev_user_ioctl) 127 return EBUSY; 128 prev_user_ioctl = sc_user_ioctl; 129 sc_user_ioctl = vesa_ioctl; 130 return 0; 131 } 132 133 int 134 vesa_unload_ioctl(void) 135 { 136 if (sc_user_ioctl != vesa_ioctl) 137 return EBUSY; 138 sc_user_ioctl = prev_user_ioctl; 139 prev_user_ioctl = NULL; 140 return 0; 141 } 142 143 #endif /* (NSC > 0 && NVGA > 0 && VESA && VM86) || KLD_MODULE */ 144