| | 1 | /* |
| | 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * This file contains Original Code and/or Modifications of Original Code |
| | 7 | * as defined in and that are subject to the Apple Public Source License |
| | 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 9 | * compliance with the License. Please obtain a copy of the License at |
| | 10 | * http://www.opensource.apple.com/apsl/ and read it before using this |
| | 11 | * file. |
| | 12 | * |
| | 13 | * The Original Code and all software distributed under the License are |
| | 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 18 | * Please see the License for the specific language governing rights and |
| | 19 | * limitations under the License. |
| | 20 | * |
| | 21 | * @APPLE_LICENSE_HEADER_END@ |
| | 22 | */ |
| | 23 | /* |
| | 24 | * @OSF_COPYRIGHT@ |
| | 25 | */ |
| | 26 | /* |
| | 27 | * Mach Operating System |
| | 28 | * Copyright (c) 1991,1990,1989 Carnegie Mellon University |
| | 29 | * All Rights Reserved. |
| | 30 | * |
| | 31 | * Permission to use, copy, modify and distribute this software and its |
| | 32 | * documentation is hereby granted, provided that both the copyright |
| | 33 | * notice and this permission notice appear in all copies of the |
| | 34 | * software, derivative works or modified versions, and any portions |
| | 35 | * thereof, and that both notices appear in supporting documentation. |
| | 36 | * |
| | 37 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
| | 38 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
| | 39 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| | 40 | * |
| | 41 | * Carnegie Mellon requests users of this software to return to |
| | 42 | * |
| | 43 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| | 44 | * School of Computer Science |
| | 45 | * Carnegie Mellon University |
| | 46 | * Pittsburgh PA 15213-3890 |
| | 47 | * |
| | 48 | * any improvements or extensions that they make and grant Carnegie Mellon |
| | 49 | * the rights to redistribute these changes. |
| | 50 | */ |
| | 51 | /* |
| | 52 | */ |
| | 53 | /* |
| | 54 | * File: screen_switch.h |
| | 55 | * Author: Alessandro Forin, Carnegie Mellon University |
| | 56 | * Date: 10/90 |
| | 57 | * |
| | 58 | * Definitions of things that must be tailored to |
| | 59 | * specific hardware boards for the Generic Screen Driver. |
| | 60 | */ |
| | 61 | |
| | 62 | #ifndef SCREEN_SWITCH_H |
| | 63 | #define SCREEN_SWITCH_H 1 |
| | 64 | |
| | 65 | #include <mach/boolean.h> |
| | 66 | |
| | 67 | /* |
| | 68 | * List of probe routines, scanned at cold-boot time |
| | 69 | * to see which, if any, graphic display is available. |
| | 70 | * This is done before autoconf, so that printing on |
| | 71 | * the console works early on. The alloc routine is |
| | 72 | * called only on the first device that answers. |
| | 73 | * Ditto for the setup routine, called later on. |
| | 74 | */ |
| | 75 | struct screen_probe_vector { |
| | 76 | int (*probe)(void); |
| | 77 | unsigned int (*alloc)(void); |
| | 78 | int (*setup)(int, user_info_t); |
| | 79 | }; |
| | 80 | |
| | 81 | /* |
| | 82 | * Low-level operations on the graphic device, used |
| | 83 | * by the otherwise device-independent interface code |
| | 84 | */ |
| | 85 | |
| | 86 | /* Forward declaration of screen_softc_t */ |
| | 87 | typedef struct screen_softc *screen_softc_t; |
| | 88 | |
| | 89 | struct screen_switch { |
| | 90 | int (*graphic_open)(void); /* when X11 opens */ |
| | 91 | int (*graphic_close)(screen_softc_t); /* .. or closes */ |
| | 92 | int (*set_status)(screen_softc_t, |
| | 93 | dev_flavor_t, |
| | 94 | dev_status_t, |
| | 95 | natural_t); /* dev-specific ops */ |
| | 96 | int (*get_status)(screen_softc_t, |
| | 97 | dev_flavor_t, |
| | 98 | dev_status_t, |
| | 99 | natural_t*); /* dev-specific ops */ |
| | 100 | int (*char_paint)(screen_softc_t, |
| | 101 | int, |
| | 102 | int, |
| | 103 | int); /* blitc */ |
| | 104 | int (*pos_cursor)(void*, |
| | 105 | int, |
| | 106 | int); /* cursor positioning*/ |
| | 107 | int (*insert_line)(screen_softc_t, |
| | 108 | short); /* ..and scroll down */ |
| | 109 | int (*remove_line)(screen_softc_t, |
| | 110 | short); /* ..and scroll up */ |
| | 111 | int (*clear_bitmap)(screen_softc_t); /* blank screen */ |
| | 112 | int (*video_on)(void*, |
| | 113 | user_info_t*); /* screen saver */ |
| | 114 | int (*video_off)(void*, |
| | 115 | user_info_t*); |
| | 116 | int (*intr_enable)(void*, |
| | 117 | boolean_t); |
| | 118 | int (*map_page)(screen_softc_t, |
| | 119 | vm_offset_t, |
| | 120 | int); /* user-space mapping*/ |
| | 121 | }; |
| | 122 | |
| | 123 | /* |
| | 124 | * Each graphic device needs page-aligned memory |
| | 125 | * to be mapped in user space later (for events |
| | 126 | * and such). Size and content of this memory |
| | 127 | * is unfortunately device-dependent, even if |
| | 128 | * it did not need to (puns). |
| | 129 | */ |
| | 130 | extern char *screen_data; |
| | 131 | |
| | 132 | extern struct screen_probe_vector screen_probe_vector[]; |
| | 133 | |
| | 134 | extern int screen_noop(void), screen_find(void); |
| | 135 | |
| | 136 | #endif /* SCREEN_SWITCH_H */ |
projects / apple / xnu.git / blame_incremental