1 /* 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This software was developed by the Computer Systems Engineering group 6 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 7 * contributed to Berkeley. 8 * 9 * All advertising materials mentioning features or use of this software 10 * must display the following acknowledgement: 11 * This product includes software developed by the University of 12 * California, Lawrence Berkeley Laboratory. 13 * 14 * %sccs.include.redist.c% 15 * 16 * @(#)fbvar.h 8.1 (Berkeley) 06/11/93 17 * 18 * from: $Header: fbvar.h,v 1.15 92/11/26 02:04:34 torek Exp $ 19 */ 20 21 /* 22 * Frame buffer variables. All frame buffer drivers must provide the 23 * following in order to participate. 24 */ 25 struct fbdriver { 26 /* device unblank function (force kernel output to display) */ 27 void (*fbd_unblank)(struct device *); 28 #ifdef notyet 29 void (*fbd_wrrop)(); /* `write region' rasterop */ 30 void (*fbd_cprop)(); /* `copy region' rasterop */ 31 void (*fbd_clrop)(); /* `clear region' rasterop */ 32 #endif 33 }; 34 35 struct fbdevice { 36 int fb_major; /* XXX */ 37 struct fbtype fb_type; /* what it says */ 38 caddr_t fb_pixels; /* display RAM */ 39 int fb_linebytes; /* bytes per display line */ 40 41 struct fbdriver *fb_driver; /* pointer to driver */ 42 struct device *fb_device; /* parameter for fbd_unblank */ 43 44 /* Raster console emulator state */ 45 u_int fb_bits; /* see defines below */ 46 int fb_ringing; /* bell currently ringing */ 47 int fb_belldepth; /* audible bell depth */ 48 int fb_scroll; /* stupid sun scroll mode */ 49 50 int fb_p0; /* escape sequence parameter 0 */ 51 int fb_p1; /* escape sequence parameter 1 */ 52 53 int *fb_row; /* emulator row */ 54 int *fb_col; /* emulator column */ 55 56 int fb_maxrow; /* emulator height of screen */ 57 int fb_maxcol; /* emulator width of screen */ 58 59 int fb_emuwidth; /* emulator screen width */ 60 int fb_emuheight; /* emulator screen height */ 61 62 int fb_xorigin; /* x origin for first column */ 63 int fb_yorigin; /* y origin for first row */ 64 65 struct raster *fb_sp; /* frame buffer raster */ 66 struct raster *fb_cursor; /* optional cursor */ 67 int fb_ras_blank; /* current screen blank raster op */ 68 69 struct raster_font *fb_font; /* font and related info */ 70 int fb_font_ascent; /* distance from font to char origin */ 71 }; 72 73 #define FB_INESC 0x001 /* processing an escape sequence */ 74 #define FB_STANDOUT 0x002 /* standout mode */ 75 /* #define FB_BOLD 0x? /* boldface mode */ 76 #define FB_INVERT 0x008 /* white on black mode */ 77 #define FB_VISBELL 0x010 /* visual bell */ 78 #define FB_CURSOR 0x020 /* cursor is visible */ 79 #define FB_P0_DEFAULT 0x100 /* param 0 is defaulted */ 80 #define FB_P1_DEFAULT 0x200 /* param 1 is defaulted */ 81 #define FB_P0 0x400 /* working on param 0 */ 82 #define FB_P1 0x800 /* working on param 1 */ 83 84 void fbattach __P((struct fbdevice *)); 85