![[bottom]](../icons/bottom.png){kind=icon}
![[previous]](../icons/n_left.png){kind=icon}
![[next]](../icons/n_right.png){kind=icon}
![[first]](../icons/n_first.png){kind=icon}
![[last]](../icons/n_last.png){kind=icon}
![[top]](../icons/n_top.png){kind=icon}
![[index]](../icons/index.png){kind=icon}
![[help]](../icons/help.png){kind=icon}
*/
1 #ifndef _LINUX_FB_H
2 #define _LINUX_FB_H
3
4 /* Definitions of frame buffers */
5
6 /* ioctls
7 0x46 is 'F' */
8 #define FBIOGET_VSCREENINFO 0x4600
9 #define FBIOPUT_VSCREENINFO 0x4601
10 #define FBIOGET_FSCREENINFO 0x4602
11 #define FBIOGETCMAP 0x4604
12 #define FBIOPUTCMAP 0x4605
13 #define FBIOPAN_DISPLAY 0x4606
14
15 #define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
16 #define FB_TYPE_PLANES 1 /* Non interleaved planes */
17 #define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */
18
19 #define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */
20 #define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */
21 #define FB_VISUAL_TRUECOLOR 2 /* True color */
22 #define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */
23 #define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */
24 #define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */
25 #define FB_VISUAL_STATIC_DIRECTCOLOR 6 /* Direct color readonly */
26
27 struct fb_fix_screeninfo {
28 char id[16]; /* identification string eg "TT Builtin" */
29 unsigned long smem_start; /* Start of frame buffer mem */
30 unsigned long smem_len; /* Length of frame buffer mem */
31 int type; /* see FB_TYPE_* */
32 int type_aux; /* Interleave for interleaved Planes */
33 int visual; /* see FB_VISUAL_* */
34 u_short xpanstep; /* zero if no hardware panning */
35 u_short ypanstep; /* zero if no hardware panning */
36 u_short ywrapstep; /* zero if no hardware ywrap */
37 u_long line_length; /* length of a line in bytes */
38 short reserved[9]; /* Reserved for future compatibility */
39 };
40
41 struct fb_bitfield {
42 int offset; /* beginning of bitfield */
43 int length; /* length of bitfield */
44 int msb_right; /* != 0 : Most significant bit is */
45 /* right */
46 };
47
48 #define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
49
50 #define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
51 #define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
52 #define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
53 #define FB_ACTIVATE_MASK 15
54 /* values */
55 #define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
56 #define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
57
58 #define FB_ACCEL_NONE 0 /* no hardware accelerator */
59 #define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */
60 #define FB_ACCEL_AMIGABLITT 2 /* Amiga Blitter */
61 #define FB_ACCEL_CYBERVISION 3 /* Cybervision64 (S3 Trio64) */
62
63 #define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
64 #define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
65 #define FB_SYNC_EXT 4 /* external sync */
66 #define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
67 #define FB_SYNC_BROADCAST 16 /* broadcast video timings */
68 /* vtotal = 144d/288n/576i => PAL */
69 /* vtotal = 121d/242n/484i => NTSC */
70
71 #define FB_VMODE_NONINTERLACED 0 /* non interlaced */
72 #define FB_VMODE_INTERLACED 1 /* interlaced */
73 #define FB_VMODE_DOUBLE 2 /* double scan */
74 #define FB_VMODE_MASK 255
75
76 #define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
77 #define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
78 #define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
79
80 struct fb_var_screeninfo {
81 int xres; /* visible resolution */
82 int yres;
83 int xres_virtual; /* virtual resolution */
84 int yres_virtual;
85 int xoffset; /* offset from virtual to visible */
86 int yoffset; /* resolution */
87
88 int bits_per_pixel; /* guess what */
89 int grayscale; /* != 0 Graylevels instead of colors */
90
91 struct fb_bitfield red; /* bitfield in fb mem if true color, */
92 struct fb_bitfield green; /* else only length is significant */
93 struct fb_bitfield blue;
94 struct fb_bitfield transp; /* transparency */
95
96 int nonstd; /* != 0 Non standard pixel format */
97
98 int activate; /* see FB_ACTIVATE_* */
99
100 int height; /* height of picture in mm */
101 int width; /* width of picture in mm */
102
103 int accel; /* see FB_ACCEL_* */
104
105 /* Timing: All values in pixclocks, except pixclock (of course) */
106 unsigned long pixclock; /* pixel clock in ps (pico seconds) */
107 unsigned long left_margin; /* time from sync to picture */
108 unsigned long right_margin; /* time from picture to sync */
109 unsigned long upper_margin; /* time from sync to picture */
110 unsigned long lower_margin;
111 unsigned long hsync_len; /* length of horizontal sync */
112 unsigned long vsync_len; /* length of vertical sync */
113 int sync; /* see FB_SYNC_* */
114 int vmode; /* see FB_VMODE_* */
115 int reserved[6]; /* Reserved for future compatibility */
116 };
117
118 struct fb_cmap {
119 int start; /* First entry */
120 int len; /* Number of entries */
121 unsigned short *red; /* Red values */
122 unsigned short *green;
123 unsigned short *blue;
124 unsigned short *transp; /* transparency, can be NULL */
125 };
126
127 #ifdef __KERNEL__
128
129 #include <linux/fs.h>
130
131 struct fb_ops {
132 /* get non settable parameters */
133 int (*fb_get_fix) (struct fb_fix_screeninfo *, int);
134 /* get settable parameters */
135 int (*fb_get_var) (struct fb_var_screeninfo *, int);
136 /* set settable parameters */
137 int (*fb_set_var) (struct fb_var_screeninfo *, int);
138 /* get colormap */
139 int (*fb_get_cmap) (struct fb_cmap *, int, int);
140 /* set colormap */
141 int (*fb_set_cmap) (struct fb_cmap *, int, int);
142 /* pan display */
143 int (*fb_pan_display) (struct fb_var_screeninfo *, int);
144 /* perform fb specific ioctl */
145 int (*fb_ioctl)(struct inode *, struct file *, unsigned int,
146 unsigned long, int);
147 };
148
149 int register_framebuffer(char *, int *, struct fb_ops *, int,
150 struct fb_var_screeninfo *);
151 int unregister_framebuffer(int);
152
153 /*
154 * This is the interface between the low-level console driver and the
155 * low-level frame buffer device
156 */
157
158 struct display {
159 /* Filled in by the frame buffer device */
160
161 struct fb_var_screeninfo var; /* variable infos. yoffset and vmode */
162 /* are updated by fbcon.c */
163 struct fb_cmap cmap; /* colormap */
164 u_char *screen_base; /* pointer to top of virtual screen */
165 int visual;
166 int type; /* see FB_TYPE_* */
167 int type_aux; /* Interleave for interleaved Planes */
168 u_short ypanstep; /* zero if no hardware ypan */
169 u_short ywrapstep; /* zero if no hardware ywrap */
170 u_long line_length; /* length of a line in bytes */
171 u_short can_soft_blank; /* zero if no hardware blanking */
172 u_short inverse; /* != 0 text black on white as default */
173
174 #if 0
175 struct fb_fix_cursorinfo fcrsr;
176 struct fb_var_cursorinfo *vcrsr;
177 struct fb_cursorstate crsrstate;
178 #endif
179
180 /* Filled in by the low-level console driver */
181
182 struct vc_data *conp; /* pointer to console data */
183 int vrows; /* number of virtual rows */
184 int cursor_x; /* current cursor position */
185 int cursor_y;
186 int fgcol; /* text colors */
187 int bgcol;
188 u_long next_line; /* offset to one line below */
189 u_long next_plane; /* offset to next plane */
190 u_char *fontdata; /* Font associated to this display */
191 int fontheight;
192 int fontwidth;
193 int userfont; /* != 0 if fontdata kmalloc()ed */
194 struct display_switch *dispsw; /* low level operations */
195 u_short scrollmode; /* Scroll Method */
196 short yscroll; /* Hardware scrolling */
197 };
198
199
200 struct fb_info {
201 char modename[40]; /* at boottime detected video mode */
202 struct display *disp; /* pointer to display variables */
203 char fontname[40]; /* default font name */
204 int (*changevar)(int); /* tell console var has changed */
205 int (*switch_con)(int); /* tell fb to switch consoles */
206 int (*updatevar)(int); /* tell fb to update the vars */
207 void (*blank)(int); /* tell fb to (un)blank the screen */
208 };
209
210 #endif /* __KERNEL__ */
211
212 #if 1
213
214 #define FBCMD_GET_CURRENTPAR 0xDEAD0005
215 #define FBCMD_SET_CURRENTPAR 0xDEAD8005
216
217 #endif
218
219
220 #if 1 /* Preliminary */
221
222 /*
223 * Hardware Cursor
224 */
225
226 #define FBIOGET_FCURSORINFO 0x4607
227 #define FBIOGET_VCURSORINFO 0x4608
228 #define FBIOPUT_VCURSORINFO 0x4609
229 #define FBIOGET_CURSORSTATE 0x460A
230 #define FBIOPUT_CURSORSTATE 0x460B
231
232
233 struct fb_fix_cursorinfo {
234 u_short crsr_width; /* width and height of the cursor in */
235 u_short crsr_height; /* pixels (zero if no cursor) */
236 u_short crsr_xsize; /* cursor size in display pixels */
237 u_short crsr_ysize;
238 u_short crsr_color1; /* colormap entry for cursor color1 */
239 u_short crsr_color2; /* colormap entry for cursor color2 */
240 };
241
242 struct fb_var_cursorinfo {
243 u_short width;
244 u_short height;
245 u_short xspot;
246 u_short yspot;
247 u_char data[1]; /* field with [height][width] */
248 };
249
250 struct fb_cursorstate {
251 short xoffset;
252 short yoffset;
253 u_short mode;
254 };
255
256 #define FB_CURSOR_OFF 0
257 #define FB_CURSOR_ON 1
258 #define FB_CURSOR_FLASH 2
259
260 #define FBCMD_DRAWLINE 0x4621
261 #define FBCMD_MOVE 0x4622
262
263 #define FB_LINE_XOR 1
264 #define FB_LINE_BOX 2
265 #define FB_LINE_FILLED 4
266
267 struct fb_line {
268 int start_x;
269 int start_y;
270 int end_x;
271 int end_y;
272 int color;
273 int option;
274 };
275
276 struct fb_move {
277 int src_x;
278 int src_y;
279 int dest_x;
280 int dest_y;
281 int height;
282 int width;
283 };
284
285 #endif /* Preliminary */
286
287
288 #endif /* _LINUX_FB_H */
![[top]](../icons/top.png){kind=icon}
![[bottom]](../icons/n_bottom.png){kind=icon}
*/