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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | /* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ /* * File: screen_switch.h * Author: Alessandro Forin, Carnegie Mellon University * Date: 10/90 * * Definitions of things that must be tailored to * specific hardware boards for the Generic Screen Driver. */ #ifndef SCREEN_SWITCH_H #define SCREEN_SWITCH_H 1 #include <mach/boolean.h> /* * List of probe routines, scanned at cold-boot time * to see which, if any, graphic display is available. * This is done before autoconf, so that printing on * the console works early on. The alloc routine is * called only on the first device that answers. * Ditto for the setup routine, called later on. */ struct screen_probe_vector { int (*probe)(void); unsigned int (*alloc)(void); int (*setup)(int, user_info_t); }; /* * Low-level operations on the graphic device, used * by the otherwise device-independent interface code */ /* Forward declaration of screen_softc_t */ typedef struct screen_softc *screen_softc_t; struct screen_switch { int (*graphic_open)(void); /* when X11 opens */ int (*graphic_close)(screen_softc_t); /* .. or closes */ int (*set_status)(screen_softc_t, dev_flavor_t, dev_status_t, natural_t); /* dev-specific ops */ int (*get_status)(screen_softc_t, dev_flavor_t, dev_status_t, natural_t*); /* dev-specific ops */ int (*char_paint)(screen_softc_t, int, int, int); /* blitc */ int (*pos_cursor)(void*, int, int); /* cursor positioning*/ int (*insert_line)(screen_softc_t, short); /* ..and scroll down */ int (*remove_line)(screen_softc_t, short); /* ..and scroll up */ int (*clear_bitmap)(screen_softc_t); /* blank screen */ int (*video_on)(void*, user_info_t*); /* screen saver */ int (*video_off)(void*, user_info_t*); int (*intr_enable)(void*, boolean_t); int (*map_page)(screen_softc_t, vm_offset_t, int); /* user-space mapping*/ }; /* * Each graphic device needs page-aligned memory * to be mapped in user space later (for events * and such). Size and content of this memory * is unfortunately device-dependent, even if * it did not need to (puns). */ extern char *screen_data; extern struct screen_probe_vector screen_probe_vector[]; extern int screen_noop(void), screen_find(void); #endif /* SCREEN_SWITCH_H */ |