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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
|
/*
* 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.h
* Author: Alessandro Forin, Carnegie Mellon University
* Date: 9/90
*
* Definitions for the Generic Screen Driver.
*/
/*
* Most of these structures are defined so that the
* resulting structure mapped to user space appears
* to be compatible with the one used by the DEC X
* servers (pm_info..). Keep it that way and the
* X servers will keep on running.
*/
/*
* Generic structures and defines
*/
/* colors */
typedef struct {
unsigned short red;
unsigned short green;
unsigned short blue;
} color_map_t;
typedef struct {
short unused;
unsigned short index;
color_map_t value;
} color_map_entry_t;
typedef struct {
unsigned int Bg_rgb[3];
unsigned int Fg_rgb[3];
} cursor_color_t;
/* generic input event */
typedef struct {
short x; /* x position */
short y; /* y position */
unsigned int time; /* 1 millisecond units */
unsigned char type; /* button up/down/raw or motion */
# define EVT_BUTTON_UP 0
# define EVT_BUTTON_DOWN 1
# define EVT_BUTTON_RAW 2
# define EVT_PTR_MOTION 3
unsigned char key; /* the key (button only) */
# define KEY_LEFT_BUTTON 1
# define KEY_MIDDLE_BUTTON 2
# define KEY_RIGHT_BUTTON 3
# define KEY_TBL_LEFT_BUTTON 0
# define KEY_TBL_FRONT_BUTTON 1
# define KEY_TBL_RIGHT_BUTTON 2
# define KEY_TBL_BACK_BUTTON 3
unsigned char index; /* which instance of device */
unsigned char device; /* which device */
# define DEV_NULL 0
# define DEV_MOUSE 1
# define DEV_KEYBD 2
# define DEV_TABLET 3
# define DEV_AUX 4
# define DEV_CONSOLE 5
# define DEV_KNOB 8
# define DEV_JOYSTICK 9
} screen_event_t;
/* timed coordinate info */
typedef struct {
unsigned int time;
short x, y;
} screen_timed_point_t;
/* queue of input events, and ring of mouse motions track */
typedef struct {
screen_event_t *events;
unsigned int q_size;
unsigned int q_head;
unsigned int q_tail;
unsigned long timestamp;
screen_timed_point_t *track;
unsigned int t_size;
unsigned int t_next;
} screen_evque_t;
/* mouse/cursor position */
typedef struct {
short x;
short y;
} screen_point_t;
/* mouse motion bounding boxes */
typedef struct {
short bottom;
short right;
short left;
short top;
} screen_rect_t;
/*
* Here it is, each field is marked as
*
* Kset : kernel sets it unconditionally
* Kuse : kernel uses it, safely
* Kdep : kernel might depend on it
*/
typedef struct {
screen_evque_t evque; /* Kset, Kuse */
short mouse_buttons; /* Kset */
screen_point_t xx3 /*tablet*/;
short xx4 /*tswitches*/;
screen_point_t cursor; /* Kset */
short row; /* Kdep */
short col; /* Kdep */
short max_row; /* Kdep */
short max_col; /* Kdep */
short max_x; /* Kset */
short max_y; /* Kset */
short max_cur_x; /* Kdep */
short max_cur_y; /* Kdep */
int version; /* Kset */
union {
struct {
unsigned char * bitmap; /* Kset */
short * x16 /*scanmap*/;
short * x17 /*cursorbits*/;
short * x18 /*pmaddr*/;
unsigned char * planemask; /* Kset */
} pm;
struct {
int x15 /* flags */;
int * gram /* Kset */;
int * rb_addr /* Kset */;
int rb_phys /* Kset */;
int rb_size /* Kset */;
} gx;
} dev_dep_1;
screen_point_t mouse_loc; /* Kdep */
screen_rect_t mouse_box; /* Kdep */
short mouse_threshold;/* Kuse */
short mouse_scale; /* Kuse */
short min_cur_x; /* Kdep */
short min_cur_y; /* Kdep */
union {
struct {
int x26 /*dev_type*/;
char * x27 /*framebuffer*/;
char * x28 /*volatile struct bt459 *bt459*/;
int x29 /*slot*/;
char cursor_sprite[1024];/* Kset */
unsigned char Bg_color[3]; /* Kset */
unsigned char Fg_color[3]; /* Kset */
int tablet_scale_x; /* Kuse */
int tablet_scale_y; /* Kuse */
} pm;
struct {
char * gxo /* Kset */;
char stamp_width /* Kset */;
char stamp_height /* Kset */;
char nplanes /* Kset */;
char x27_4 /* n10_present */;
char x28_1 /* dplanes */;
char zplanes /* Kset */;
char zzplanes /* Kset */;
unsigned char cursor_sprite[1024] /* Kuse */;
char x285_0 /* padding for next, which was int */;
unsigned char Fg_color[4] /* Kuse */;
unsigned char Bg_color[4] /* Kuse */;
unsigned short cmap_index /* Kuse */;
unsigned short cmap_count /* Kuse */;
unsigned int colormap[256] /* Kuse */;
int * stic_dma_rb /* Kset */;
int * stic_reg /* Kset */;
int ptpt_phys /* Kdep */;
int ptpt_size /* Kdep */;
int * ptpt_pgin /* Kset */;
} gx;
} dev_dep_2;
short frame_scanline_width; /* in pixels, Kset */
short frame_height; /* in scanlines, Kset */
/*
* Event queues are allocated right after that
*/
#define MAX_EVENTS 64
#define MAX_TRACK 100
screen_event_t event_queue[MAX_EVENTS]; /* Kset */
screen_timed_point_t point_track[MAX_TRACK]; /* Kset */
/*
* Some like it hot
*/
unsigned int event_id;
int interrupt_info;
} user_info_t;
/*
* Screen get_status codes and arguments
*/
#include <sys/ioctl.h>
/* Get size (and offset) of mapped info */
#define SCREEN_GET_OFFSETS _IOR('q', 6, unsigned **)
/* Get screen status flags */
#define SCREEN_STATUS_FLAGS _IOR('q', 22, int *)
# define MONO_SCREEN 0x01
# define COLOR_SCREEN 0x02
# define SCREEN_BEING_UPDATED 0x04
/*
* Screen set_status codes and arguments
*/
/* start/stop screen saver, control fading interval */
#define SCREEN_FADE _IOW('q', 114, int) /* fade screen */
# define NO_FADE -1
/* Turn video on/off manually */
#define SCREEN_ON _IO('q', 10)
#define SCREEN_OFF _IO('q', 11)
/* Fixup pointers inside mapped info structure */
#define SCREEN_ADJ_MAPPED_INFO _IOR('q', 1, user_info_t *)
/* Initialize anything that needs to, hw-wise */
#define SCREEN_INIT _IO('q', 4)
/* Position cursor to a specific spot */
#define SCREEN_SET_CURSOR _IOW('q', 2, screen_point_t)
/* Load Bg/Fg colors for cursor */
#define SCREEN_SET_CURSOR_COLOR _IOW('q', 3, cursor_color_t)
/* Load cursor sprite, small cursor form */
typedef unsigned short cursor_sprite_t[32];
#define SCREEN_LOAD_CURSOR _IOW('q', 7, cursor_sprite_t)
/* Load cursor sprite, large 64x64 cursor form */
typedef char cursor_sprite_long_t[1024];
#define SCREEN_LOAD_CURSOR_LONG _IOW('q', 13, cursor_sprite_long_t)
/* Modify a given entry in the color map (VDAC) */
#define SCREEN_SET_CMAP_ENTRY _IOW('q', 12, color_map_entry_t)
/* Return some other information about hardware (optional) */
typedef struct {
int frame_width;
int frame_height;
int frame_visible_width;
int frame_visible_height;
} screen_hw_info_t;
#define SCREEN_HARDWARE_INFO _IOR('q', 23, screen_hw_info_t)
/* Screen-dependent, unspecified (and despised) */
#define SCREEN_HARDWARE_DEP _IO('q', 24)
|
