1 /*- 2 * Copyright (c) 1995-1998 S�ren Schmidt 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, 10 * without modification, immediately at the beginning of the file. 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sys/modules/syscons/star/star_saver.c,v 1.23.2.2 2001/05/06 05:44:29 nyan Exp $ 29 * $DragonFly: src/sys/dev/misc/syscons/star/star_saver.c,v 1.3 2003/08/15 08:32:30 dillon Exp $ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/module.h> 36 #include <sys/consio.h> 37 #include <sys/fbio.h> 38 39 #include <machine/pc/display.h> 40 41 #include <dev/video/fb/fbreg.h> 42 #include <dev/video/fb/splashreg.h> 43 #include "../syscons.h" 44 45 #ifdef PC98 46 #include <pc98/pc98/pc98_machdep.h> 47 #endif 48 49 #define NUM_STARS 50 50 51 static int blanked; 52 53 /* 54 * Alternate saver that got its inspiration from a well known utility 55 * package for an inferior^H^H^H^H^H^Hfamous OS. 56 */ 57 static int 58 star_saver(video_adapter_t *adp, int blank) 59 { 60 sc_softc_t *sc; 61 scr_stat *scp; 62 int cell, i; 63 static u_char pattern[] = {"...........++++*** "}; 64 #ifndef PC98 65 static char colors[] = {FG_DARKGREY, FG_LIGHTGREY, 66 FG_WHITE, FG_LIGHTCYAN}; 67 #else 68 static char colors[] = {FG_BLUE, FG_LIGHTGREY, 69 FG_LIGHTGREY, FG_CYAN}; 70 #endif /* PC98 */ 71 static u_short stars[NUM_STARS][2]; 72 73 sc = sc_find_softc(adp, NULL); 74 if (sc == NULL) 75 return EAGAIN; 76 scp = sc->cur_scp; 77 78 if (blank) { 79 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 80 return EAGAIN; 81 if (!blanked) { 82 #ifdef PC98 83 if (epson_machine_id == 0x20) { 84 outb(0x43f, 0x42); 85 outb(0x0c17, inb(0xc17) & ~0x08); 86 outb(0x43f, 0x40); 87 } 88 #endif /* PC98 */ 89 /* clear the screen and set the border color */ 90 sc_vtb_clear(&scp->scr, sc->scr_map[0x20], 91 (FG_LIGHTGREY | BG_BLACK) << 8); 92 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 93 sc_set_border(scp, 0); 94 blanked = TRUE; 95 for(i=0; i<NUM_STARS; i++) { 96 stars[i][0] = 97 random() % (scp->xsize*scp->ysize); 98 stars[i][1] = 0; 99 } 100 } 101 cell = random() % NUM_STARS; 102 sc_vtb_putc(&scp->scr, stars[cell][0], 103 sc->scr_map[pattern[stars[cell][1]]], 104 colors[random()%sizeof(colors)] << 8); 105 if ((stars[cell][1]+=(random()%4)) >= sizeof(pattern)-1) { 106 stars[cell][0] = random() % (scp->xsize*scp->ysize); 107 stars[cell][1] = 0; 108 } 109 } 110 else { 111 #ifdef PC98 112 if (epson_machine_id == 0x20) { 113 outb(0x43f, 0x42); 114 outb(0x0c17, inb(0xc17) | 0x08); 115 outb(0x43f, 0x40); 116 } 117 #endif /* PC98 */ 118 blanked = FALSE; 119 } 120 return 0; 121 } 122 123 static int 124 star_init(video_adapter_t *adp) 125 { 126 blanked = FALSE; 127 return 0; 128 } 129 130 static int 131 star_term(video_adapter_t *adp) 132 { 133 return 0; 134 } 135 136 static scrn_saver_t star_module = { 137 "star_saver", star_init, star_term, star_saver, NULL, 138 }; 139 140 SAVER_MODULE(star_saver, star_module); 141