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1 #ifndef _LINUX_FB_H
2 #define _LINUX_FB_H
3
4 /* Definitions of frame buffers */
5
6 #ifdef __KERNEL__
7 #include <linux/config.h>
8 #include <linux/fs.h>
9 #endif
10
11 /* ioctls
12 0x46 is 'F' */
13 #define FBIOGET_VSCREENINFO 0x4600
14 #define FBIOPUT_VSCREENINFO 0x4601
15 #define FBIOGET_FSCREENINFO 0x4602
16 #define FBIOGETCMAP 0x4604
17 #define FBIOPUTCMAP 0x4605
18 #define FBIOPAN_DISPLAY 0x4606
19
20 #define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
21 #define FB_TYPE_PLANES 1 /* Non interleaved planes */
22 #define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */
23
24 #define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */
25 #define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */
26 #define FB_VISUAL_TRUECOLOR 2 /* True color */
27 #define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */
28 #define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */
29 #define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */
30 #define FB_VISUAL_STATIC_DIRECTCOLOR 6 /* Direct color readonly */
31
32 struct fb_fix_screeninfo {
33 char id[16]; /* identification string eg "TT Builtin" */
34 unsigned long smem_start; /* Start of frame buffer mem */
35 unsigned long smem_len; /* Length of frame buffer mem */
36 int type; /* see FB_TYPE_* */
37 int type_aux; /* Interleave for interleaved Planes */
38 int visual; /* see FB_VISUAL_* */
39 u_short xpanstep; /* zero if no hardware panning */
40 u_short ypanstep; /* zero if no hardware panning */
41 u_short ywrapstep; /* zero if no hardware ywrap */
42 short reserved[11]; /* Reserved for future compatibility */
43 };
44
45 struct fb_bitfield {
46 int offset; /* beginning of bitfield */
47 int length; /* length of bitfield */
48 int msb_right; /* != 0 : Most significant bit is */
49 /* right */
50 };
51
52 #define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
53
54 #define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
55 #define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
56 #define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
57 #define FB_ACTIVATE_MASK 15
58 /* values */
59 #define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
60 #define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
61
62 #define FB_ACCEL_NONE 0 /* no hardware accelerator */
63 #define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */
64 #define FB_ACCEL_AMIGABLITT 2 /* Amiga Blitter */
65 #define FB_ACCEL_CYBERVISION 3 /* Cybervision64 (S3 Trio64) */
66
67 #define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
68 #define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
69 #define FB_SYNC_EXT 4 /* external sync */
70 #define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
71 #define FB_SYNC_BROADCAST 16 /* broadcast video timings */
72 /* vtotal = 144d/288n/576i => PAL */
73 /* vtotal = 121d/242n/484i => NTSC */
74
75 #define FB_VMODE_NONINTERLACED 0 /* non interlaced */
76 #define FB_VMODE_INTERLACED 1 /* interlaced */
77 #define FB_VMODE_DOUBLE 2 /* double scan */
78 #define FB_VMODE_MASK 255
79
80 #define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
81
82 struct fb_var_screeninfo {
83 int xres; /* visible resolution */
84 int yres;
85 int xres_virtual; /* virtual resolution */
86 int yres_virtual;
87 int xoffset; /* offset from virtual to visible */
88 int yoffset; /* resolution */
89
90 int bits_per_pixel; /* guess what */
91 int grayscale; /* != 0 Graylevels instead of colors */
92
93 struct fb_bitfield red; /* bitfield in fb mem if true color, */
94 struct fb_bitfield green; /* else only length is significant */
95 struct fb_bitfield blue;
96 struct fb_bitfield transp; /* transparency */
97
98 int nonstd; /* != 0 Non standard pixel format */
99
100 int activate; /* see FB_ACTIVATE_* */
101
102 int height; /* height of picture in mm */
103 int width; /* width of picture in mm */
104
105 int accel; /* see FB_ACCEL_* */
106
107 /* Timing: All values in pixclocks, except pixclock (of course) */
108 unsigned long pixclock; /* pixel clock in ps (pico seconds) */
109 unsigned long left_margin; /* time from sync to picture */
110 unsigned long right_margin; /* time from picture to sync */
111 unsigned long upper_margin; /* time from sync to picture */
112 unsigned long lower_margin;
113 unsigned long hsync_len; /* length of horizontal sync */
114 unsigned long vsync_len; /* length of vertical sync */
115 int sync; /* see FB_SYNC_* */
116 int vmode; /* see FB_VMODE_* */
117 int reserved[6]; /* Reserved for future compatibility */
118 };
119
120 struct fb_cmap {
121 int start; /* First entry */
122 int len; /* Number of entries */
123 unsigned short *red; /* Red values */
124 unsigned short *green;
125 unsigned short *blue;
126 unsigned short *transp; /* transparency, can be NULL */
127 };
128
129 #ifdef __KERNEL__
130
131 struct fb_ops {
132 /* get non setable parameters */
133 int (*fb_get_fix) (struct fb_fix_screeninfo *, int);
134 /* get setable parameters */
135 int (*fb_get_var) (struct fb_var_screeninfo *, int);
136 /* set setable 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 /*
160 * As long as the old Amiga screen driver is being used, we have to
161 * include these old parameters.
162 */
163 #if defined(CONFIG_AMIGA)
164 ushort scr_max_height; /* screen dimensions */
165 ushort scr_max_width;
166 ushort scr_height;
167 ushort scr_width;
168 ushort scr_depth;
169 int bytes_per_row; /* offset to one line below */
170
171 ulong crsrcol;
172
173 ushort scroll_latch; /* Vblank support for hardware scroll */
174 ushort y_wrap;
175 ushort cursor_latch; /* Hardware cursor */
176 ushort *cursor, *dummy;
177 ushort cursor_flash;
178 ushort cursor_visible;
179
180 /* Some chipreg values we need to rebuild copper lists */
181 ushort diwstrt_v, diwstrt_h; /* display window control */
182 ushort diwstop_v, diwstop_h;
183 ushort bplcon0; /* display mode */
184 ushort htotal;
185
186 u_char *bitplane[8]; /* pointers to display bitplanes */
187 ulong plane_size;
188
189 ushort *coplist1hdr; /* List 1 static component */
190 ushort *coplist1dyn; /* List 1 dynamic component */
191 ushort *coplist2hdr; /* List 2 static component */
192 ushort *coplist2dyn; /* List 2 dynamic component */
193
194 #endif
195
196 /* Filled in by the frame buffer device */
197
198 struct fb_var_screeninfo var; /* variable infos. yoffset and vmode */
199 /* are updated by fbcon.c */
200 struct fb_cmap cmap; /* colormap */
201 u_char *screen_base; /* pointer to top of virtual screen */
202 int visual;
203 int type; /* see FB_TYPE_* */
204 int type_aux; /* Interleave for interleaved Planes */
205 u_short ypanstep; /* zero if no hardware ypan */
206 u_short ywrapstep; /* zero if no hardware ywrap */
207 u_short can_soft_blank; /* zero if no hardware blanking */
208 u_short inverse; /* != 0 text black on white as default */
209
210 #if 0
211 struct fb_fix_cursorinfo fcrsr;
212 struct fb_var_cursorinfo *vcrsr;
213 struct fb_cursorstate crsrstate;
214 #endif
215
216 /* Filled in by the low-level console driver */
217
218 struct vc_data *conp; /* pointer to console data */
219 int cursor_x; /* current cursor position */
220 int cursor_y;
221 int fgcol; /* text colors */
222 int bgcol;
223 u_long next_line; /* offset to one line below */
224 u_long next_plane; /* offset to next plane */
225 u_char *fontdata; /* Font associated to this display */
226 int fontheight;
227 int fontwidth;
228 struct display_switch *dispsw; /* low level operations */
229 u_short scrollmode; /* Scroll Method */
230 short yscroll; /* Hardware scrolling */
231 };
232
233
234 struct fb_info {
235 char modename[40]; /* at boottime detected video mode */
236 struct display *disp; /* pointer to display variables */
237 char fontname[40]; /* default font name */
238 int (*changevar)(int); /* tell console var has changed */
239 int (*switch_con)(int); /* tell fb to switch consoles */
240 int (*updatevar)(int); /* tell fb to update the vars */
241 void (*blank)(int); /* tell fb to (un)blank the screen */
242 };
243
244 #endif /* __KERNEL__ */
245
246 #if 1
247
248 #define FBCMD_GET_CURRENTPAR 0xDEAD0005
249 #define FBCMD_SET_CURRENTPAR 0xDEAD8005
250
251 #endif
252
253
254 #if 1 /* Preliminary */
255
256 /*
257 * Hardware Cursor
258 */
259
260 #define FBIOGET_FCURSORINFO 0x4607
261 #define FBIOGET_VCURSORINFO 0x4608
262 #define FBIOPUT_VCURSORINFO 0x4609
263 #define FBIOGET_CURSORSTATE 0x460A
264 #define FBIOPUT_CURSORSTATE 0x460B
265
266
267 struct fb_fix_cursorinfo {
268 u_short crsr_width; /* width and height of the cursor in */
269 u_short crsr_height; /* pixels (zero if no cursor) */
270 u_short crsr_xsize; /* cursor size in display pixels */
271 u_short crsr_ysize;
272 u_short crsr_color1; /* colormap entry for cursor color1 */
273 u_short crsr_color2; /* colormap entry for cursor color2 */
274 };
275
276 struct fb_var_cursorinfo {
277 u_long data[256]; /* max. 64x64 (ilbm, 2 planes) */
278 };
279
280 struct fb_cursorstate {
281 short xoffset;
282 short yoffset;
283 u_short mode;
284 };
285
286 #define FB_CURSOR_OFF 0
287 #define FB_CURSOR_ON 1
288 #define FB_CURSOR_FLASH 2
289
290 #endif /* Preliminary */
291
292
293 #endif /* _LINUX_FB_H */
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*/