1 /* 2 * Copyright (c) 1992 The Regents of the University of California. 3 * 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 * %sccs.include.redist.c% 10 * 11 * @(#)fbvar.h 7.1 (Berkeley) 07/13/92 12 * 13 * from: $Header: fbvar.h,v 1.14 92/06/17 06:10:16 torek Exp $ 14 */ 15 16 /* 17 * Frame buffer variables. All frame buffer drivers must provide the 18 * following in order to participate. 19 */ 20 struct fbdriver { 21 /* device unblank function (force kernel output to display) */ 22 void (*fbd_unblank)(struct device *); 23 #ifdef notyet 24 void (*fbd_wrrop)(); /* `write region' rasterop */ 25 void (*fbd_cprop)(); /* `copy region' rasterop */ 26 void (*fbd_clrop)(); /* `clear region' rasterop */ 27 #endif 28 }; 29 30 struct fbdevice { 31 int fb_major; /* XXX */ 32 struct fbtype fb_type; /* what it says */ 33 caddr_t fb_pixels; /* display RAM */ 34 int fb_linebytes; /* bytes per display line */ 35 36 struct fbdriver *fb_driver; /* pointer to driver */ 37 struct device *fb_device; /* parameter for fbd_unblank */ 38 39 /* Raster console emulator state */ 40 u_int fb_bits; /* see defines below */ 41 int fb_ringing; /* bell currently ringing */ 42 int fb_belldepth; /* audible bell depth */ 43 int fb_scroll; /* stupid sun scroll mode */ 44 45 int fb_p0; /* escape sequence parameter 0 */ 46 int fb_p1; /* escape sequence parameter 1 */ 47 48 int *fb_row; /* emulator row */ 49 int *fb_col; /* emulator column */ 50 51 int fb_maxrow; /* emulator height of screen */ 52 int fb_maxcol; /* emulator width of screen */ 53 54 int fb_emuwidth; /* emulator screen width */ 55 int fb_emuheight; /* emulator screen height */ 56 57 int fb_xorigin; /* x origin for first column */ 58 int fb_yorigin; /* y origin for first row */ 59 60 struct raster *fb_sp; /* frame buffer raster */ 61 struct raster *fb_cursor; /* optional cursor */ 62 int fb_ras_blank; /* current screen blank raster op */ 63 64 struct raster_font *fb_font; /* font and related info */ 65 int fb_font_ascent; /* distance from font to char origin */ 66 }; 67 68 #define FB_INESC 0x001 /* processing an escape sequence */ 69 #define FB_STANDOUT 0x002 /* standout mode */ 70 /* #define FB_BOLD 0x? /* boldface mode */ 71 #define FB_INVERT 0x008 /* white on black mode */ 72 #define FB_VISBELL 0x010 /* visual bell */ 73 #define FB_CURSOR 0x020 /* cursor is visible */ 74 #define FB_P0_DEFAULT 0x100 /* param 0 is defaulted */ 75 #define FB_P1_DEFAULT 0x200 /* param 1 is defaulted */ 76 #define FB_P0 0x400 /* working on param 0 */ 77 #define FB_P1 0x800 /* working on param 1 */ 78 79 void fbattach __P((struct fbdevice *)); 80