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