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/blank/blank_saver.c,v 1.17 1999/08/28 00:47:45 peter Exp $ 29 * $DragonFly: src/sys/dev/misc/syscons/blank/blank_saver.c,v 1.5 2007/09/06 18:17:23 swildner 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 <dev/video/fb/fbreg.h> 40 #include <dev/video/fb/splashreg.h> 41 #include "../syscons.h" 42 43 static int blanked; 44 45 static int 46 blank_saver(video_adapter_t *adp, int blank) 47 { 48 if (blank == blanked) 49 return 0; 50 51 (*vidsw[adp->va_index]->blank_display) 52 (adp, blank ? V_DISPLAY_OFF : V_DISPLAY_ON); 53 54 blanked = blank; 55 56 return 0; 57 } 58 59 static int 60 blank_init(video_adapter_t *adp) 61 { 62 if ((*vidsw[adp->va_index]->blank_display)(adp, V_DISPLAY_ON) == 0) 63 return 0; 64 return ENODEV; 65 } 66 67 static int 68 blank_term(video_adapter_t *adp) 69 { 70 return 0; 71 } 72 73 static scrn_saver_t blank_module = { 74 "blank_saver", blank_init, blank_term, blank_saver, NULL, 75 }; 76 77 SAVER_MODULE(blank_saver, blank_module); 78