Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
1#ifndef _LINUX_FB_H
2#define _LINUX_FB_H
3
4#include <asm/types.h>
5#include <linux/i2c.h>
6
7struct dentry;
8
9/* Definitions of frame buffers */
10
11#define FB_MAX 32 /* sufficient for now */
12
13/* ioctls
14 0x46 is 'F' */
15#define FBIOGET_VSCREENINFO 0x4600
16#define FBIOPUT_VSCREENINFO 0x4601
17#define FBIOGET_FSCREENINFO 0x4602
18#define FBIOGETCMAP 0x4604
19#define FBIOPUTCMAP 0x4605
20#define FBIOPAN_DISPLAY 0x4606
21#ifdef __KERNEL__
22#define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user)
23#else
24#define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor)
25#endif
26/* 0x4607-0x460B are defined below */
27/* #define FBIOGET_MONITORSPEC 0x460C */
28/* #define FBIOPUT_MONITORSPEC 0x460D */
29/* #define FBIOSWITCH_MONIBIT 0x460E */
30#define FBIOGET_CON2FBMAP 0x460F
31#define FBIOPUT_CON2FBMAP 0x4610
32#define FBIOBLANK 0x4611 /* arg: 0 or vesa level + 1 */
33#define FBIOGET_VBLANK _IOR('F', 0x12, struct fb_vblank)
34#define FBIO_ALLOC 0x4613
35#define FBIO_FREE 0x4614
36#define FBIOGET_GLYPH 0x4615
37#define FBIOGET_HWCINFO 0x4616
38#define FBIOPUT_MODEINFO 0x4617
39#define FBIOGET_DISPINFO 0x4618
40
41
42#define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
43#define FB_TYPE_PLANES 1 /* Non interleaved planes */
44#define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */
45#define FB_TYPE_TEXT 3 /* Text/attributes */
46#define FB_TYPE_VGA_PLANES 4 /* EGA/VGA planes */
47
48#define FB_AUX_TEXT_MDA 0 /* Monochrome text */
49#define FB_AUX_TEXT_CGA 1 /* CGA/EGA/VGA Color text */
50#define FB_AUX_TEXT_S3_MMIO 2 /* S3 MMIO fasttext */
51#define FB_AUX_TEXT_MGA_STEP16 3 /* MGA Millenium I: text, attr, 14 reserved bytes */
52#define FB_AUX_TEXT_MGA_STEP8 4 /* other MGAs: text, attr, 6 reserved bytes */
53#define FB_AUX_TEXT_SVGA_GROUP 8 /* 8-15: SVGA tileblit compatible modes */
54#define FB_AUX_TEXT_SVGA_MASK 7 /* lower three bits says step */
55#define FB_AUX_TEXT_SVGA_STEP2 8 /* SVGA text mode: text, attr */
56#define FB_AUX_TEXT_SVGA_STEP4 9 /* SVGA text mode: text, attr, 2 reserved bytes */
57#define FB_AUX_TEXT_SVGA_STEP8 10 /* SVGA text mode: text, attr, 6 reserved bytes */
58#define FB_AUX_TEXT_SVGA_STEP16 11 /* SVGA text mode: text, attr, 14 reserved bytes */
59#define FB_AUX_TEXT_SVGA_LAST 15 /* reserved up to 15 */
60
61#define FB_AUX_VGA_PLANES_VGA4 0 /* 16 color planes (EGA/VGA) */
62#define FB_AUX_VGA_PLANES_CFB4 1 /* CFB4 in planes (VGA) */
63#define FB_AUX_VGA_PLANES_CFB8 2 /* CFB8 in planes (VGA) */
64
65#define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */
66#define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */
67#define FB_VISUAL_TRUECOLOR 2 /* True color */
68#define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */
69#define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */
70#define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */
71
72#define FB_ACCEL_NONE 0 /* no hardware accelerator */
73#define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */
74#define FB_ACCEL_AMIGABLITT 2 /* Amiga Blitter */
75#define FB_ACCEL_S3_TRIO64 3 /* Cybervision64 (S3 Trio64) */
76#define FB_ACCEL_NCR_77C32BLT 4 /* RetinaZ3 (NCR 77C32BLT) */
77#define FB_ACCEL_S3_VIRGE 5 /* Cybervision64/3D (S3 ViRGE) */
78#define FB_ACCEL_ATI_MACH64GX 6 /* ATI Mach 64GX family */
79#define FB_ACCEL_DEC_TGA 7 /* DEC 21030 TGA */
80#define FB_ACCEL_ATI_MACH64CT 8 /* ATI Mach 64CT family */
81#define FB_ACCEL_ATI_MACH64VT 9 /* ATI Mach 64CT family VT class */
82#define FB_ACCEL_ATI_MACH64GT 10 /* ATI Mach 64CT family GT class */
83#define FB_ACCEL_SUN_CREATOR 11 /* Sun Creator/Creator3D */
84#define FB_ACCEL_SUN_CGSIX 12 /* Sun cg6 */
85#define FB_ACCEL_SUN_LEO 13 /* Sun leo/zx */
86#define FB_ACCEL_IMS_TWINTURBO 14 /* IMS Twin Turbo */
87#define FB_ACCEL_3DLABS_PERMEDIA2 15 /* 3Dlabs Permedia 2 */
88#define FB_ACCEL_MATROX_MGA2064W 16 /* Matrox MGA2064W (Millenium) */
89#define FB_ACCEL_MATROX_MGA1064SG 17 /* Matrox MGA1064SG (Mystique) */
90#define FB_ACCEL_MATROX_MGA2164W 18 /* Matrox MGA2164W (Millenium II) */
91#define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
92#define FB_ACCEL_MATROX_MGAG100 20 /* Matrox G100 (Productiva G100) */
93#define FB_ACCEL_MATROX_MGAG200 21 /* Matrox G200 (Myst, Mill, ...) */
94#define FB_ACCEL_SUN_CG14 22 /* Sun cgfourteen */
95#define FB_ACCEL_SUN_BWTWO 23 /* Sun bwtwo */
96#define FB_ACCEL_SUN_CGTHREE 24 /* Sun cgthree */
97#define FB_ACCEL_SUN_TCX 25 /* Sun tcx */
98#define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */
99#define FB_ACCEL_NV3 27 /* nVidia RIVA 128 */
100#define FB_ACCEL_NV4 28 /* nVidia RIVA TNT */
101#define FB_ACCEL_NV5 29 /* nVidia RIVA TNT2 */
102#define FB_ACCEL_CT_6555x 30 /* C&T 6555x */
103#define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */
104#define FB_ACCEL_ATI_RAGE128 32 /* ATI Rage128 family */
105#define FB_ACCEL_IGS_CYBER2000 33 /* CyberPro 2000 */
106#define FB_ACCEL_IGS_CYBER2010 34 /* CyberPro 2010 */
107#define FB_ACCEL_IGS_CYBER5000 35 /* CyberPro 5000 */
108#define FB_ACCEL_SIS_GLAMOUR 36 /* SiS 300/630/540 */
109#define FB_ACCEL_3DLABS_PERMEDIA3 37 /* 3Dlabs Permedia 3 */
110#define FB_ACCEL_ATI_RADEON 38 /* ATI Radeon family */
111#define FB_ACCEL_I810 39 /* Intel 810/815 */
112#define FB_ACCEL_SIS_GLAMOUR_2 40 /* SiS 315, 650, 740 */
113#define FB_ACCEL_SIS_XABRE 41 /* SiS 330 ("Xabre") */
114#define FB_ACCEL_I830 42 /* Intel 830M/845G/85x/865G */
115#define FB_ACCEL_NV_10 43 /* nVidia Arch 10 */
116#define FB_ACCEL_NV_20 44 /* nVidia Arch 20 */
117#define FB_ACCEL_NV_30 45 /* nVidia Arch 30 */
118#define FB_ACCEL_NV_40 46 /* nVidia Arch 40 */
119#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
120#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
121#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
122#define FB_ACCEL_TRIDENT_TGUI 50 /* Trident TGUI */
123#define FB_ACCEL_TRIDENT_3DIMAGE 51 /* Trident 3DImage */
124#define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */
125#define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */
126#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
127#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
128#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
129#define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097 */
130#define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160 */
131#define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200 */
132#define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230 */
133#define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360 */
134#define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380 */
135
136#define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */
137#define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */
138#define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
139#define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */
140#define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
141#define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */
142#define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
143#define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */
144#define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */
145#define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */
146#define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */
147#define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */
148#define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */
149#define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
150#define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
151
152struct fb_fix_screeninfo {
153 char id[16]; /* identification string eg "TT Builtin" */
154 unsigned long smem_start; /* Start of frame buffer mem */
155 /* (physical address) */
156 __u32 smem_len; /* Length of frame buffer mem */
157 __u32 type; /* see FB_TYPE_* */
158 __u32 type_aux; /* Interleave for interleaved Planes */
159 __u32 visual; /* see FB_VISUAL_* */
160 __u16 xpanstep; /* zero if no hardware panning */
161 __u16 ypanstep; /* zero if no hardware panning */
162 __u16 ywrapstep; /* zero if no hardware ywrap */
163 __u32 line_length; /* length of a line in bytes */
164 unsigned long mmio_start; /* Start of Memory Mapped I/O */
165 /* (physical address) */
166 __u32 mmio_len; /* Length of Memory Mapped I/O */
167 __u32 accel; /* Indicate to driver which */
168 /* specific chip/card we have */
169 __u16 reserved[3]; /* Reserved for future compatibility */
170};
171
172/* Interpretation of offset for color fields: All offsets are from the right,
173 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
174 * can use the offset as right argument to <<). A pixel afterwards is a bit
175 * stream and is written to video memory as that unmodified. This implies
176 * big-endian byte order if bits_per_pixel is greater than 8.
177 */
178struct fb_bitfield {
179 __u32 offset; /* beginning of bitfield */
180 __u32 length; /* length of bitfield */
181 __u32 msb_right; /* != 0 : Most significant bit is */
182 /* right */
183};
184
185#define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
186#define FB_NONSTD_REV_PIX_IN_B 2 /* order of pixels in each byte is reversed */
187
188#define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
189#define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
190#define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
191#define FB_ACTIVATE_MASK 15
192 /* values */
193#define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
194#define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
195#define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
196#define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
197#define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
198
199#define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */
200
201#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
202#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
203#define FB_SYNC_EXT 4 /* external sync */
204#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
205#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
206 /* vtotal = 144d/288n/576i => PAL */
207 /* vtotal = 121d/242n/484i => NTSC */
208#define FB_SYNC_ON_GREEN 32 /* sync on green */
209
210#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
211#define FB_VMODE_INTERLACED 1 /* interlaced */
212#define FB_VMODE_DOUBLE 2 /* double scan */
213#define FB_VMODE_ODD_FLD_FIRST 4 /* interlaced: top line first */
214#define FB_VMODE_MASK 255
215
216#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
217#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
218#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
219
220/*
221 * Display rotation support
222 */
223#define FB_ROTATE_UR 0
224#define FB_ROTATE_CW 1
225#define FB_ROTATE_UD 2
226#define FB_ROTATE_CCW 3
227
228#define PICOS2KHZ(a) (1000000000UL/(a))
229#define KHZ2PICOS(a) (1000000000UL/(a))
230
231struct fb_var_screeninfo {
232 __u32 xres; /* visible resolution */
233 __u32 yres;
234 __u32 xres_virtual; /* virtual resolution */
235 __u32 yres_virtual;
236 __u32 xoffset; /* offset from virtual to visible */
237 __u32 yoffset; /* resolution */
238
239 __u32 bits_per_pixel; /* guess what */
240 __u32 grayscale; /* != 0 Graylevels instead of colors */
241
242 struct fb_bitfield red; /* bitfield in fb mem if true color, */
243 struct fb_bitfield green; /* else only length is significant */
244 struct fb_bitfield blue;
245 struct fb_bitfield transp; /* transparency */
246
247 __u32 nonstd; /* != 0 Non standard pixel format */
248
249 __u32 activate; /* see FB_ACTIVATE_* */
250
251 __u32 height; /* height of picture in mm */
252 __u32 width; /* width of picture in mm */
253
254 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
255
256 /* Timing: All values in pixclocks, except pixclock (of course) */
257 __u32 pixclock; /* pixel clock in ps (pico seconds) */
258 __u32 left_margin; /* time from sync to picture */
259 __u32 right_margin; /* time from picture to sync */
260 __u32 upper_margin; /* time from sync to picture */
261 __u32 lower_margin;
262 __u32 hsync_len; /* length of horizontal sync */
263 __u32 vsync_len; /* length of vertical sync */
264 __u32 sync; /* see FB_SYNC_* */
265 __u32 vmode; /* see FB_VMODE_* */
266 __u32 rotate; /* angle we rotate counter clockwise */
267 __u32 reserved[5]; /* Reserved for future compatibility */
268};
269
270struct fb_cmap {
271 __u32 start; /* First entry */
272 __u32 len; /* Number of entries */
273 __u16 *red; /* Red values */
274 __u16 *green;
275 __u16 *blue;
276 __u16 *transp; /* transparency, can be NULL */
277};
278
279struct fb_con2fbmap {
280 __u32 console;
281 __u32 framebuffer;
282};
283
284/* VESA Blanking Levels */
285#define VESA_NO_BLANKING 0
286#define VESA_VSYNC_SUSPEND 1
287#define VESA_HSYNC_SUSPEND 2
288#define VESA_POWERDOWN 3
289
290
291enum {
292 /* screen: unblanked, hsync: on, vsync: on */
293 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
294
295 /* screen: blanked, hsync: on, vsync: on */
296 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
297
298 /* screen: blanked, hsync: on, vsync: off */
299 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
300
301 /* screen: blanked, hsync: off, vsync: on */
302 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
303
304 /* screen: blanked, hsync: off, vsync: off */
305 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
306};
307
308#define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
309#define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
310#define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
311#define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
312#define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
313#define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
314#define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
315#define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
316#define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
317
318struct fb_vblank {
319 __u32 flags; /* FB_VBLANK flags */
320 __u32 count; /* counter of retraces since boot */
321 __u32 vcount; /* current scanline position */
322 __u32 hcount; /* current scandot position */
323 __u32 reserved[4]; /* reserved for future compatibility */
324};
325
326/* Internal HW accel */
327#define ROP_COPY 0
328#define ROP_XOR 1
329
330struct fb_copyarea {
331 __u32 dx;
332 __u32 dy;
333 __u32 width;
334 __u32 height;
335 __u32 sx;
336 __u32 sy;
337};
338
339struct fb_fillrect {
340 __u32 dx; /* screen-relative */
341 __u32 dy;
342 __u32 width;
343 __u32 height;
344 __u32 color;
345 __u32 rop;
346};
347
348struct fb_image {
349 __u32 dx; /* Where to place image */
350 __u32 dy;
351 __u32 width; /* Size of image */
352 __u32 height;
353 __u32 fg_color; /* Only used when a mono bitmap */
354 __u32 bg_color;
355 __u8 depth; /* Depth of the image */
356 const char *data; /* Pointer to image data */
357 struct fb_cmap cmap; /* color map info */
358};
359
360/*
361 * hardware cursor control
362 */
363
364#define FB_CUR_SETIMAGE 0x01
365#define FB_CUR_SETPOS 0x02
366#define FB_CUR_SETHOT 0x04
367#define FB_CUR_SETCMAP 0x08
368#define FB_CUR_SETSHAPE 0x10
369#define FB_CUR_SETSIZE 0x20
370#define FB_CUR_SETALL 0xFF
371
372struct fbcurpos {
373 __u16 x, y;
374};
375
376struct fb_cursor {
377 __u16 set; /* what to set */
378 __u16 enable; /* cursor on/off */
379 __u16 rop; /* bitop operation */
380 const char *mask; /* cursor mask bits */
381 struct fbcurpos hot; /* cursor hot spot */
382 struct fb_image image; /* Cursor image */
383};
384
385#ifdef CONFIG_FB_BACKLIGHT
386/* Settings for the generic backlight code */
387#define FB_BACKLIGHT_LEVELS 128
388#define FB_BACKLIGHT_MAX 0xFF
389#endif
390
391#ifdef __KERNEL__
392
393#include <linux/fs.h>
394#include <linux/init.h>
395#include <linux/device.h>
396#include <linux/workqueue.h>
397#include <linux/notifier.h>
398#include <linux/list.h>
399#include <linux/backlight.h>
400#include <asm/io.h>
401
402struct vm_area_struct;
403struct fb_info;
404struct device;
405struct file;
406
407/* Definitions below are used in the parsed monitor specs */
408#define FB_DPMS_ACTIVE_OFF 1
409#define FB_DPMS_SUSPEND 2
410#define FB_DPMS_STANDBY 4
411
412#define FB_DISP_DDI 1
413#define FB_DISP_ANA_700_300 2
414#define FB_DISP_ANA_714_286 4
415#define FB_DISP_ANA_1000_400 8
416#define FB_DISP_ANA_700_000 16
417
418#define FB_DISP_MONO 32
419#define FB_DISP_RGB 64
420#define FB_DISP_MULTI 128
421#define FB_DISP_UNKNOWN 256
422
423#define FB_SIGNAL_NONE 0
424#define FB_SIGNAL_BLANK_BLANK 1
425#define FB_SIGNAL_SEPARATE 2
426#define FB_SIGNAL_COMPOSITE 4
427#define FB_SIGNAL_SYNC_ON_GREEN 8
428#define FB_SIGNAL_SERRATION_ON 16
429
430#define FB_MISC_PRIM_COLOR 1
431#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
432struct fb_chroma {
433 __u32 redx; /* in fraction of 1024 */
434 __u32 greenx;
435 __u32 bluex;
436 __u32 whitex;
437 __u32 redy;
438 __u32 greeny;
439 __u32 bluey;
440 __u32 whitey;
441};
442
443struct fb_monspecs {
444 struct fb_chroma chroma;
445 struct fb_videomode *modedb; /* mode database */
446 __u8 manufacturer[4]; /* Manufacturer */
447 __u8 monitor[14]; /* Monitor String */
448 __u8 serial_no[14]; /* Serial Number */
449 __u8 ascii[14]; /* ? */
450 __u32 modedb_len; /* mode database length */
451 __u32 model; /* Monitor Model */
452 __u32 serial; /* Serial Number - Integer */
453 __u32 year; /* Year manufactured */
454 __u32 week; /* Week Manufactured */
455 __u32 hfmin; /* hfreq lower limit (Hz) */
456 __u32 hfmax; /* hfreq upper limit (Hz) */
457 __u32 dclkmin; /* pixelclock lower limit (Hz) */
458 __u32 dclkmax; /* pixelclock upper limit (Hz) */
459 __u16 input; /* display type - see FB_DISP_* */
460 __u16 dpms; /* DPMS support - see FB_DPMS_ */
461 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
462 __u16 vfmin; /* vfreq lower limit (Hz) */
463 __u16 vfmax; /* vfreq upper limit (Hz) */
464 __u16 gamma; /* Gamma - in fractions of 100 */
465 __u16 gtf : 1; /* supports GTF */
466 __u16 misc; /* Misc flags - see FB_MISC_* */
467 __u8 version; /* EDID version... */
468 __u8 revision; /* ...and revision */
469 __u8 max_x; /* Maximum horizontal size (cm) */
470 __u8 max_y; /* Maximum vertical size (cm) */
471};
472
473struct fb_cmap_user {
474 __u32 start; /* First entry */
475 __u32 len; /* Number of entries */
476 __u16 __user *red; /* Red values */
477 __u16 __user *green;
478 __u16 __user *blue;
479 __u16 __user *transp; /* transparency, can be NULL */
480};
481
482struct fb_image_user {
483 __u32 dx; /* Where to place image */
484 __u32 dy;
485 __u32 width; /* Size of image */
486 __u32 height;
487 __u32 fg_color; /* Only used when a mono bitmap */
488 __u32 bg_color;
489 __u8 depth; /* Depth of the image */
490 const char __user *data; /* Pointer to image data */
491 struct fb_cmap_user cmap; /* color map info */
492};
493
494struct fb_cursor_user {
495 __u16 set; /* what to set */
496 __u16 enable; /* cursor on/off */
497 __u16 rop; /* bitop operation */
498 const char __user *mask; /* cursor mask bits */
499 struct fbcurpos hot; /* cursor hot spot */
500 struct fb_image_user image; /* Cursor image */
501};
502
503/*
504 * Register/unregister for framebuffer events
505 */
506
507/* The resolution of the passed in fb_info about to change */
508#define FB_EVENT_MODE_CHANGE 0x01
509/* The display on this fb_info is beeing suspended, no access to the
510 * framebuffer is allowed any more after that call returns
511 */
512#define FB_EVENT_SUSPEND 0x02
513/* The display on this fb_info was resumed, you can restore the display
514 * if you own it
515 */
516#define FB_EVENT_RESUME 0x03
517/* An entry from the modelist was removed */
518#define FB_EVENT_MODE_DELETE 0x04
519/* A driver registered itself */
520#define FB_EVENT_FB_REGISTERED 0x05
521/* A driver unregistered itself */
522#define FB_EVENT_FB_UNREGISTERED 0x06
523/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
524#define FB_EVENT_GET_CONSOLE_MAP 0x07
525/* CONSOLE-SPECIFIC: set console to framebuffer mapping */
526#define FB_EVENT_SET_CONSOLE_MAP 0x08
527/* A hardware display blank change occured */
528#define FB_EVENT_BLANK 0x09
529/* Private modelist is to be replaced */
530#define FB_EVENT_NEW_MODELIST 0x0A
531/* The resolution of the passed in fb_info about to change and
532 all vc's should be changed */
533#define FB_EVENT_MODE_CHANGE_ALL 0x0B
534/* A software display blank change occured */
535#define FB_EVENT_CONBLANK 0x0C
536/* Get drawing requirements */
537#define FB_EVENT_GET_REQ 0x0D
538/* Unbind from the console if possible */
539#define FB_EVENT_FB_UNBIND 0x0E
540
541struct fb_event {
542 struct fb_info *info;
543 void *data;
544};
545
546struct fb_blit_caps {
547 u32 x;
548 u32 y;
549 u32 len;
550 u32 flags;
551};
552
553extern int fb_register_client(struct notifier_block *nb);
554extern int fb_unregister_client(struct notifier_block *nb);
555extern int fb_notifier_call_chain(unsigned long val, void *v);
556/*
557 * Pixmap structure definition
558 *
559 * The purpose of this structure is to translate data
560 * from the hardware independent format of fbdev to what
561 * format the hardware needs.
562 */
563
564#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
565#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
566#define FB_PIXMAP_IO 4 /* memory is iomapped */
567#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
568
569struct fb_pixmap {
570 u8 *addr; /* pointer to memory */
571 u32 size; /* size of buffer in bytes */
572 u32 offset; /* current offset to buffer */
573 u32 buf_align; /* byte alignment of each bitmap */
574 u32 scan_align; /* alignment per scanline */
575 u32 access_align; /* alignment per read/write (bits) */
576 u32 flags; /* see FB_PIXMAP_* */
577 u32 blit_x; /* supported bit block dimensions (1-32)*/
578 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
579 /* blit_y = 1 << (height - 1) */
580 /* if 0, will be set to 0xffffffff (all)*/
581 /* access methods */
582 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
583 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
584};
585
586#ifdef CONFIG_FB_DEFERRED_IO
587struct fb_deferred_io {
588 /* delay between mkwrite and deferred handler */
589 unsigned long delay;
590 struct mutex lock; /* mutex that protects the page list */
591 struct list_head pagelist; /* list of touched pages */
592 /* callback */
593 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
594};
595#endif
596
597/*
598 * Frame buffer operations
599 *
600 * LOCKING NOTE: those functions must _ALL_ be called with the console
601 * semaphore held, this is the only suitable locking mechanism we have
602 * in 2.6. Some may be called at interrupt time at this point though.
603 */
604
605struct fb_ops {
606 /* open/release and usage marking */
607 struct module *owner;
608 int (*fb_open)(struct fb_info *info, int user);
609 int (*fb_release)(struct fb_info *info, int user);
610
611 /* For framebuffers with strange non linear layouts or that do not
612 * work with normal memory mapped access
613 */
614 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
615 size_t count, loff_t *ppos);
616 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
617 size_t count, loff_t *ppos);
618
619 /* checks var and eventually tweaks it to something supported,
620 * DO NOT MODIFY PAR */
621 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
622
623 /* set the video mode according to info->var */
624 int (*fb_set_par)(struct fb_info *info);
625
626 /* set color register */
627 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
628 unsigned blue, unsigned transp, struct fb_info *info);
629
630 /* set color registers in batch */
631 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
632
633 /* blank display */
634 int (*fb_blank)(int blank, struct fb_info *info);
635
636 /* pan display */
637 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
638
639 /* Draws a rectangle */
640 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
641 /* Copy data from area to another */
642 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
643 /* Draws a image to the display */
644 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
645
646 /* Draws cursor */
647 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
648
649 /* Rotates the display */
650 void (*fb_rotate)(struct fb_info *info, int angle);
651
652 /* wait for blit idle, optional */
653 int (*fb_sync)(struct fb_info *info);
654
655 /* perform fb specific ioctl (optional) */
656 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
657 unsigned long arg);
658
659 /* Handle 32bit compat ioctl (optional) */
660 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
661 unsigned long arg);
662
663 /* perform fb specific mmap */
664 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
665
666 /* save current hardware state */
667 void (*fb_save_state)(struct fb_info *info);
668
669 /* restore saved state */
670 void (*fb_restore_state)(struct fb_info *info);
671
672 /* get capability given var */
673 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
674 struct fb_var_screeninfo *var);
675};
676
677#ifdef CONFIG_FB_TILEBLITTING
678#define FB_TILE_CURSOR_NONE 0
679#define FB_TILE_CURSOR_UNDERLINE 1
680#define FB_TILE_CURSOR_LOWER_THIRD 2
681#define FB_TILE_CURSOR_LOWER_HALF 3
682#define FB_TILE_CURSOR_TWO_THIRDS 4
683#define FB_TILE_CURSOR_BLOCK 5
684
685struct fb_tilemap {
686 __u32 width; /* width of each tile in pixels */
687 __u32 height; /* height of each tile in scanlines */
688 __u32 depth; /* color depth of each tile */
689 __u32 length; /* number of tiles in the map */
690 const __u8 *data; /* actual tile map: a bitmap array, packed
691 to the nearest byte */
692};
693
694struct fb_tilerect {
695 __u32 sx; /* origin in the x-axis */
696 __u32 sy; /* origin in the y-axis */
697 __u32 width; /* number of tiles in the x-axis */
698 __u32 height; /* number of tiles in the y-axis */
699 __u32 index; /* what tile to use: index to tile map */
700 __u32 fg; /* foreground color */
701 __u32 bg; /* background color */
702 __u32 rop; /* raster operation */
703};
704
705struct fb_tilearea {
706 __u32 sx; /* source origin in the x-axis */
707 __u32 sy; /* source origin in the y-axis */
708 __u32 dx; /* destination origin in the x-axis */
709 __u32 dy; /* destination origin in the y-axis */
710 __u32 width; /* number of tiles in the x-axis */
711 __u32 height; /* number of tiles in the y-axis */
712};
713
714struct fb_tileblit {
715 __u32 sx; /* origin in the x-axis */
716 __u32 sy; /* origin in the y-axis */
717 __u32 width; /* number of tiles in the x-axis */
718 __u32 height; /* number of tiles in the y-axis */
719 __u32 fg; /* foreground color */
720 __u32 bg; /* background color */
721 __u32 length; /* number of tiles to draw */
722 __u32 *indices; /* array of indices to tile map */
723};
724
725struct fb_tilecursor {
726 __u32 sx; /* cursor position in the x-axis */
727 __u32 sy; /* cursor position in the y-axis */
728 __u32 mode; /* 0 = erase, 1 = draw */
729 __u32 shape; /* see FB_TILE_CURSOR_* */
730 __u32 fg; /* foreground color */
731 __u32 bg; /* background color */
732};
733
734struct fb_tile_ops {
735 /* set tile characteristics */
736 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
737
738 /* all dimensions from hereon are in terms of tiles */
739
740 /* move a rectangular region of tiles from one area to another*/
741 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
742 /* fill a rectangular region with a tile */
743 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
744 /* copy an array of tiles */
745 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
746 /* cursor */
747 void (*fb_tilecursor)(struct fb_info *info,
748 struct fb_tilecursor *cursor);
749 /* get maximum length of the tile map */
750 int (*fb_get_tilemax)(struct fb_info *info);
751};
752#endif /* CONFIG_FB_TILEBLITTING */
753
754/* FBINFO_* = fb_info.flags bit flags */
755#define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
756#define FBINFO_HWACCEL_DISABLED 0x0002
757 /* When FBINFO_HWACCEL_DISABLED is set:
758 * Hardware acceleration is turned off. Software implementations
759 * of required functions (copyarea(), fillrect(), and imageblit())
760 * takes over; acceleration engine should be in a quiescent state */
761
762/* hints */
763#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
764#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
765
766/* hardware supported ops */
767/* semantics: when a bit is set, it indicates that the operation is
768 * accelerated by hardware.
769 * required functions will still work even if the bit is not set.
770 * optional functions may not even exist if the flag bit is not set.
771 */
772#define FBINFO_HWACCEL_NONE 0x0000
773#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
774#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
775#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
776#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
777#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
778#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
779#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
780
781#define FBINFO_MISC_USEREVENT 0x10000 /* event request
782 from userspace */
783#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
784
785/* A driver may set this flag to indicate that it does want a set_par to be
786 * called every time when fbcon_switch is executed. The advantage is that with
787 * this flag set you can really be sure that set_par is always called before
788 * any of the functions dependant on the correct hardware state or altering
789 * that state, even if you are using some broken X releases. The disadvantage
790 * is that it introduces unwanted delays to every console switch if set_par
791 * is slow. It is a good idea to try this flag in the drivers initialization
792 * code whenever there is a bug report related to switching between X and the
793 * framebuffer console.
794 */
795#define FBINFO_MISC_ALWAYS_SETPAR 0x40000
796
797/*
798 * Host and GPU endianness differ.
799 */
800#define FBINFO_FOREIGN_ENDIAN 0x100000
801/*
802 * Big endian math. This is the same flags as above, but with different
803 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
804 * and host endianness. Drivers should not use this flag.
805 */
806#define FBINFO_BE_MATH 0x100000
807
808struct fb_info {
809 int node;
810 int flags;
811 struct mutex lock; /* Lock for open/release/ioctl funcs */
812 struct fb_var_screeninfo var; /* Current var */
813 struct fb_fix_screeninfo fix; /* Current fix */
814 struct fb_monspecs monspecs; /* Current Monitor specs */
815 struct work_struct queue; /* Framebuffer event queue */
816 struct fb_pixmap pixmap; /* Image hardware mapper */
817 struct fb_pixmap sprite; /* Cursor hardware mapper */
818 struct fb_cmap cmap; /* Current cmap */
819 struct list_head modelist; /* mode list */
820 struct fb_videomode *mode; /* current mode */
821
822#ifdef CONFIG_FB_BACKLIGHT
823 /* assigned backlight device */
824 /* set before framebuffer registration,
825 remove after unregister */
826 struct backlight_device *bl_dev;
827
828 /* Backlight level curve */
829 struct mutex bl_curve_mutex;
830 u8 bl_curve[FB_BACKLIGHT_LEVELS];
831#endif
832#ifdef CONFIG_FB_DEFERRED_IO
833 struct delayed_work deferred_work;
834 struct fb_deferred_io *fbdefio;
835#endif
836
837 struct fb_ops *fbops;
838 struct device *device; /* This is the parent */
839 struct device *dev; /* This is this fb device */
840 int class_flag; /* private sysfs flags */
841#ifdef CONFIG_FB_TILEBLITTING
842 struct fb_tile_ops *tileops; /* Tile Blitting */
843#endif
844 char __iomem *screen_base; /* Virtual address */
845 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
846 void *pseudo_palette; /* Fake palette of 16 colors */
847#define FBINFO_STATE_RUNNING 0
848#define FBINFO_STATE_SUSPENDED 1
849 u32 state; /* Hardware state i.e suspend */
850 void *fbcon_par; /* fbcon use-only private area */
851 /* From here on everything is device dependent */
852 void *par;
853};
854
855#ifdef MODULE
856#define FBINFO_DEFAULT FBINFO_MODULE
857#else
858#define FBINFO_DEFAULT 0
859#endif
860
861// This will go away
862#define FBINFO_FLAG_MODULE FBINFO_MODULE
863#define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
864
865/* This will go away
866 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
867 * when it wants to turn the acceleration engine on. This is
868 * really a separate operation, and should be modified via sysfs.
869 * But for now, we leave it broken with the following define
870 */
871#define STUPID_ACCELF_TEXT_SHIT
872
873// This will go away
874#if defined(__sparc__)
875
876/* We map all of our framebuffers such that big-endian accesses
877 * are what we want, so the following is sufficient.
878 */
879
880// This will go away
881#define fb_readb sbus_readb
882#define fb_readw sbus_readw
883#define fb_readl sbus_readl
884#define fb_readq sbus_readq
885#define fb_writeb sbus_writeb
886#define fb_writew sbus_writew
887#define fb_writel sbus_writel
888#define fb_writeq sbus_writeq
889#define fb_memset sbus_memset_io
890
891#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__) || defined(__avr32__)
892
893#define fb_readb __raw_readb
894#define fb_readw __raw_readw
895#define fb_readl __raw_readl
896#define fb_readq __raw_readq
897#define fb_writeb __raw_writeb
898#define fb_writew __raw_writew
899#define fb_writel __raw_writel
900#define fb_writeq __raw_writeq
901#define fb_memset memset_io
902
903#else
904
905#define fb_readb(addr) (*(volatile u8 *) (addr))
906#define fb_readw(addr) (*(volatile u16 *) (addr))
907#define fb_readl(addr) (*(volatile u32 *) (addr))
908#define fb_readq(addr) (*(volatile u64 *) (addr))
909#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
910#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
911#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
912#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
913#define fb_memset memset
914
915#endif
916
917#define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
918#define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
919 (val) << (bits))
920#define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
921 (val) >> (bits))
922
923 /*
924 * `Generic' versions of the frame buffer device operations
925 */
926
927extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
928extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
929extern int fb_blank(struct fb_info *info, int blank);
930extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
931extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
932extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
933/*
934 * Drawing operations where framebuffer is in system RAM
935 */
936extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
937extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
938extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
939extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
940 size_t count, loff_t *ppos);
941extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
942 size_t count, loff_t *ppos);
943
944/* drivers/video/fbmem.c */
945extern int register_framebuffer(struct fb_info *fb_info);
946extern int unregister_framebuffer(struct fb_info *fb_info);
947extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
948extern int fb_show_logo(struct fb_info *fb_info, int rotate);
949extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
950extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
951 u32 height, u32 shift_high, u32 shift_low, u32 mod);
952extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
953extern void fb_set_suspend(struct fb_info *info, int state);
954extern int fb_get_color_depth(struct fb_var_screeninfo *var,
955 struct fb_fix_screeninfo *fix);
956extern int fb_get_options(char *name, char **option);
957extern int fb_new_modelist(struct fb_info *info);
958
959extern struct fb_info *registered_fb[FB_MAX];
960extern int num_registered_fb;
961extern struct class *fb_class;
962
963static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
964 u8 *src, u32 s_pitch, u32 height)
965{
966 int i, j;
967
968 d_pitch -= s_pitch;
969
970 for (i = height; i--; ) {
971 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
972 for (j = 0; j < s_pitch; j++)
973 *dst++ = *src++;
974 dst += d_pitch;
975 }
976}
977
978/* drivers/video/fb_defio.c */
979extern void fb_deferred_io_init(struct fb_info *info);
980extern void fb_deferred_io_open(struct fb_info *info,
981 struct inode *inode,
982 struct file *file);
983extern void fb_deferred_io_cleanup(struct fb_info *info);
984extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
985 int datasync);
986
987static inline bool fb_be_math(struct fb_info *info)
988{
989#ifdef CONFIG_FB_FOREIGN_ENDIAN
990#if defined(CONFIG_FB_BOTH_ENDIAN)
991 return info->flags & FBINFO_BE_MATH;
992#elif defined(CONFIG_FB_BIG_ENDIAN)
993 return true;
994#elif defined(CONFIG_FB_LITTLE_ENDIAN)
995 return false;
996#endif /* CONFIG_FB_BOTH_ENDIAN */
997#else
998#ifdef __BIG_ENDIAN
999 return true;
1000#else
1001 return false;
1002#endif /* __BIG_ENDIAN */
1003#endif /* CONFIG_FB_FOREIGN_ENDIAN */
1004}
1005
1006/* drivers/video/fbsysfs.c */
1007extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1008extern void framebuffer_release(struct fb_info *info);
1009extern int fb_init_device(struct fb_info *fb_info);
1010extern void fb_cleanup_device(struct fb_info *head);
1011extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1012
1013/* drivers/video/fbmon.c */
1014#define FB_MAXTIMINGS 0
1015#define FB_VSYNCTIMINGS 1
1016#define FB_HSYNCTIMINGS 2
1017#define FB_DCLKTIMINGS 3
1018#define FB_IGNOREMON 0x100
1019
1020#define FB_MODE_IS_UNKNOWN 0
1021#define FB_MODE_IS_DETAILED 1
1022#define FB_MODE_IS_STANDARD 2
1023#define FB_MODE_IS_VESA 4
1024#define FB_MODE_IS_CALCULATED 8
1025#define FB_MODE_IS_FIRST 16
1026#define FB_MODE_IS_FROM_VAR 32
1027
1028extern int fbmon_dpms(const struct fb_info *fb_info);
1029extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1030 struct fb_info *info);
1031extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1032 struct fb_info *info);
1033extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1034extern const unsigned char *fb_firmware_edid(struct device *device);
1035extern void fb_edid_to_monspecs(unsigned char *edid,
1036 struct fb_monspecs *specs);
1037extern void fb_destroy_modedb(struct fb_videomode *modedb);
1038extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1039extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1040
1041/* drivers/video/modedb.c */
1042#define VESA_MODEDB_SIZE 34
1043extern void fb_var_to_videomode(struct fb_videomode *mode,
1044 const struct fb_var_screeninfo *var);
1045extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1046 const struct fb_videomode *mode);
1047extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1048 const struct fb_videomode *mode2);
1049extern int fb_add_videomode(const struct fb_videomode *mode,
1050 struct list_head *head);
1051extern void fb_delete_videomode(const struct fb_videomode *mode,
1052 struct list_head *head);
1053extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1054 struct list_head *head);
1055extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1056 struct list_head *head);
1057extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1058 struct list_head *head);
1059extern void fb_destroy_modelist(struct list_head *head);
1060extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1061 struct list_head *head);
1062extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1063 struct list_head *head);
1064
1065/* drivers/video/fbcmap.c */
1066extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1067extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1068extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1069extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1070extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1071extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1072extern const struct fb_cmap *fb_default_cmap(int len);
1073extern void fb_invert_cmaps(void);
1074
1075struct fb_videomode {
1076 const char *name; /* optional */
1077 u32 refresh; /* optional */
1078 u32 xres;
1079 u32 yres;
1080 u32 pixclock;
1081 u32 left_margin;
1082 u32 right_margin;
1083 u32 upper_margin;
1084 u32 lower_margin;
1085 u32 hsync_len;
1086 u32 vsync_len;
1087 u32 sync;
1088 u32 vmode;
1089 u32 flag;
1090};
1091
1092extern const char *fb_mode_option;
1093extern const struct fb_videomode vesa_modes[];
1094
1095struct fb_modelist {
1096 struct list_head list;
1097 struct fb_videomode mode;
1098};
1099
1100extern int fb_find_mode(struct fb_var_screeninfo *var,
1101 struct fb_info *info, const char *mode_option,
1102 const struct fb_videomode *db,
1103 unsigned int dbsize,
1104 const struct fb_videomode *default_mode,
1105 unsigned int default_bpp);
1106
1107#endif /* __KERNEL__ */
1108
1109#endif /* _LINUX_FB_H */