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[PATCH] nvidiafb: Fallback to firmware EDID
[linux-block.git] / include / linux / fb.h
CommitLineData
1da177e4
LT		 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_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
111#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
112#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
113#define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097 */
114#define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160 */
115#define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200 */
116#define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230 */
117#define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360 */
118#define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380 */
119
120#define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */
121#define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */
122#define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
123#define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */
124#define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
125#define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */
126#define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
127#define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */
128#define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */
129#define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */
130#define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */
131#define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */
132#define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */
133#define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
134#define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
135
136struct fb_fix_screeninfo {
137 char id[16]; /* identification string eg "TT Builtin" */
138 unsigned long smem_start; /* Start of frame buffer mem */
139 /* (physical address) */
140 __u32 smem_len; /* Length of frame buffer mem */
141 __u32 type; /* see FB_TYPE_* */
142 __u32 type_aux; /* Interleave for interleaved Planes */
143 __u32 visual; /* see FB_VISUAL_* */
144 __u16 xpanstep; /* zero if no hardware panning */
145 __u16 ypanstep; /* zero if no hardware panning */
146 __u16 ywrapstep; /* zero if no hardware ywrap */
147 __u32 line_length; /* length of a line in bytes */
148 unsigned long mmio_start; /* Start of Memory Mapped I/O */
149 /* (physical address) */
150 __u32 mmio_len; /* Length of Memory Mapped I/O */
151 __u32 accel; /* Indicate to driver which */
152 /* specific chip/card we have */
153 __u16 reserved[3]; /* Reserved for future compatibility */
154};
155
156/* Interpretation of offset for color fields: All offsets are from the right,
157 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
158 * can use the offset as right argument to <<). A pixel afterwards is a bit
159 * stream and is written to video memory as that unmodified. This implies
160 * big-endian byte order if bits_per_pixel is greater than 8.
161 */
162struct fb_bitfield {
163 __u32 offset; /* beginning of bitfield */
164 __u32 length; /* length of bitfield */
165 __u32 msb_right; /* != 0 : Most significant bit is */
166 /* right */
167};
168
169#define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
170
171#define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
172#define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
173#define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
174#define FB_ACTIVATE_MASK 15
175 /* values */
176#define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
177#define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
178#define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
179#define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
180#define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
181
182#define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */
183
184#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
185#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
186#define FB_SYNC_EXT 4 /* external sync */
187#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
188#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
189 /* vtotal = 144d/288n/576i => PAL */
190 /* vtotal = 121d/242n/484i => NTSC */
191#define FB_SYNC_ON_GREEN 32 /* sync on green */
192
193#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
194#define FB_VMODE_INTERLACED 1 /* interlaced */
195#define FB_VMODE_DOUBLE 2 /* double scan */
196#define FB_VMODE_MASK 255
197
198#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
199#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
200#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
201
202#define PICOS2KHZ(a) (1000000000UL/(a))
203#define KHZ2PICOS(a) (1000000000UL/(a))
204
205struct fb_var_screeninfo {
206 __u32 xres; /* visible resolution */
207 __u32 yres;
208 __u32 xres_virtual; /* virtual resolution */
209 __u32 yres_virtual;
210 __u32 xoffset; /* offset from virtual to visible */
211 __u32 yoffset; /* resolution */
212
213 __u32 bits_per_pixel; /* guess what */
214 __u32 grayscale; /* != 0 Graylevels instead of colors */
215
216 struct fb_bitfield red; /* bitfield in fb mem if true color, */
217 struct fb_bitfield green; /* else only length is significant */
218 struct fb_bitfield blue;
219 struct fb_bitfield transp; /* transparency */
220
221 __u32 nonstd; /* != 0 Non standard pixel format */
222
223 __u32 activate; /* see FB_ACTIVATE_* */
224
225 __u32 height; /* height of picture in mm */
226 __u32 width; /* width of picture in mm */
227
228 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
229
230 /* Timing: All values in pixclocks, except pixclock (of course) */
231 __u32 pixclock; /* pixel clock in ps (pico seconds) */
232 __u32 left_margin; /* time from sync to picture */
233 __u32 right_margin; /* time from picture to sync */
234 __u32 upper_margin; /* time from sync to picture */
235 __u32 lower_margin;
236 __u32 hsync_len; /* length of horizontal sync */
237 __u32 vsync_len; /* length of vertical sync */
238 __u32 sync; /* see FB_SYNC_* */
239 __u32 vmode; /* see FB_VMODE_* */
240 __u32 rotate; /* angle we rotate counter clockwise */
241 __u32 reserved[5]; /* Reserved for future compatibility */
242};
243
244struct fb_cmap {
245 __u32 start; /* First entry */
246 __u32 len; /* Number of entries */
247 __u16 *red; /* Red values */
248 __u16 *green;
249 __u16 *blue;
250 __u16 *transp; /* transparency, can be NULL */
251};
252
253struct fb_con2fbmap {
254 __u32 console;
255 __u32 framebuffer;
256};
257
258/* VESA Blanking Levels */
259#define VESA_NO_BLANKING 0
260#define VESA_VSYNC_SUSPEND 1
261#define VESA_HSYNC_SUSPEND 2
262#define VESA_POWERDOWN 3
263
264
265enum {
266 /* screen: unblanked, hsync: on, vsync: on */
267 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
268
269 /* screen: blanked, hsync: on, vsync: on */
270 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
271
272 /* screen: blanked, hsync: on, vsync: off */
273 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
274
275 /* screen: blanked, hsync: off, vsync: on */
276 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
277
278 /* screen: blanked, hsync: off, vsync: off */
279 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
280};
281
282#define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
283#define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
284#define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
285#define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
286#define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
287#define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
288#define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
289#define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
290#define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
291
292struct fb_vblank {
293 __u32 flags; /* FB_VBLANK flags */
294 __u32 count; /* counter of retraces since boot */
295 __u32 vcount; /* current scanline position */
296 __u32 hcount; /* current scandot position */
297 __u32 reserved[4]; /* reserved for future compatibility */
298};
299
300/* Internal HW accel */
301#define ROP_COPY 0
302#define ROP_XOR 1
303
304struct fb_copyarea {
305 __u32 dx;
306 __u32 dy;
307 __u32 width;
308 __u32 height;
309 __u32 sx;
310 __u32 sy;
311};
312
313struct fb_fillrect {
314 __u32 dx; /* screen-relative */
315 __u32 dy;
316 __u32 width;
317 __u32 height;
318 __u32 color;
319 __u32 rop;
320};
321
322struct fb_image {
323 __u32 dx; /* Where to place image */
324 __u32 dy;
325 __u32 width; /* Size of image */
326 __u32 height;
327 __u32 fg_color; /* Only used when a mono bitmap */
328 __u32 bg_color;
329 __u8 depth; /* Depth of the image */
330 const char *data; /* Pointer to image data */
331 struct fb_cmap cmap; /* color map info */
332};
333
334/*
335 * hardware cursor control
336 */
337
338#define FB_CUR_SETIMAGE 0x01
339#define FB_CUR_SETPOS 0x02
340#define FB_CUR_SETHOT 0x04
341#define FB_CUR_SETCMAP 0x08
342#define FB_CUR_SETSHAPE 0x10
343#define FB_CUR_SETSIZE 0x20
344#define FB_CUR_SETALL 0xFF
345
346struct fbcurpos {
347 __u16 x, y;
348};
349
350struct fb_cursor {
351 __u16 set; /* what to set */
352 __u16 enable; /* cursor on/off */
353 __u16 rop; /* bitop operation */
354 const char *mask; /* cursor mask bits */
355 struct fbcurpos hot; /* cursor hot spot */
356 struct fb_image image; /* Cursor image */
357};
358
359#ifdef __KERNEL__
360
361#include <linux/fs.h>
362#include <linux/init.h>
363#include <linux/tty.h>
364#include <linux/device.h>
365#include <linux/workqueue.h>
366#include <linux/devfs_fs_kernel.h>
367#include <linux/notifier.h>
368#include <linux/list.h>
369#include <asm/io.h>
370
371struct vm_area_struct;
372struct fb_info;
373struct device;
374struct file;
375
376/* Definitions below are used in the parsed monitor specs */
377#define FB_DPMS_ACTIVE_OFF 1
378#define FB_DPMS_SUSPEND 2
379#define FB_DPMS_STANDBY 4
380
381#define FB_DISP_DDI 1
382#define FB_DISP_ANA_700_300 2
383#define FB_DISP_ANA_714_286 4
384#define FB_DISP_ANA_1000_400 8
385#define FB_DISP_ANA_700_000 16
386
387#define FB_DISP_MONO 32
388#define FB_DISP_RGB 64
389#define FB_DISP_MULTI 128
390#define FB_DISP_UNKNOWN 256
391
392#define FB_SIGNAL_NONE 0
393#define FB_SIGNAL_BLANK_BLANK 1
394#define FB_SIGNAL_SEPARATE 2
395#define FB_SIGNAL_COMPOSITE 4
396#define FB_SIGNAL_SYNC_ON_GREEN 8
397#define FB_SIGNAL_SERRATION_ON 16
398
399#define FB_MISC_PRIM_COLOR 1
400#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
401struct fb_chroma {
402 __u32 redx; /* in fraction of 1024 */
403 __u32 greenx;
404 __u32 bluex;
405 __u32 whitex;
406 __u32 redy;
407 __u32 greeny;
408 __u32 bluey;
409 __u32 whitey;
410};
411
412struct fb_monspecs {
413 struct fb_chroma chroma;
414 struct fb_videomode *modedb; /* mode database */
415 __u8 manufacturer[4]; /* Manufacturer */
416 __u8 monitor[14]; /* Monitor String */
417 __u8 serial_no[14]; /* Serial Number */
418 __u8 ascii[14]; /* ? */
419 __u32 modedb_len; /* mode database length */
420 __u32 model; /* Monitor Model */
421 __u32 serial; /* Serial Number - Integer */
422 __u32 year; /* Year manufactured */
423 __u32 week; /* Week Manufactured */
424 __u32 hfmin; /* hfreq lower limit (Hz) */
425 __u32 hfmax; /* hfreq upper limit (Hz) */
426 __u32 dclkmin; /* pixelclock lower limit (Hz) */
427 __u32 dclkmax; /* pixelclock upper limit (Hz) */
428 __u16 input; /* display type - see FB_DISP_* */
429 __u16 dpms; /* DPMS support - see FB_DPMS_ */
430 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
431 __u16 vfmin; /* vfreq lower limit (Hz) */
432 __u16 vfmax; /* vfreq upper limit (Hz) */
433 __u16 gamma; /* Gamma - in fractions of 100 */
434 __u16 gtf : 1; /* supports GTF */
435 __u16 misc; /* Misc flags - see FB_MISC_* */
436 __u8 version; /* EDID version... */
437 __u8 revision; /* ...and revision */
438 __u8 max_x; /* Maximum horizontal size (cm) */
439 __u8 max_y; /* Maximum vertical size (cm) */
440};
441
442struct fb_cmap_user {
443 __u32 start; /* First entry */
444 __u32 len; /* Number of entries */
445 __u16 __user *red; /* Red values */
446 __u16 __user *green;
447 __u16 __user *blue;
448 __u16 __user *transp; /* transparency, can be NULL */
449};
450
451struct fb_image_user {
452 __u32 dx; /* Where to place image */
453 __u32 dy;
454 __u32 width; /* Size of image */
455 __u32 height;
456 __u32 fg_color; /* Only used when a mono bitmap */
457 __u32 bg_color;
458 __u8 depth; /* Depth of the image */
459 const char __user *data; /* Pointer to image data */
460 struct fb_cmap_user cmap; /* color map info */
461};
462
463struct fb_cursor_user {
464 __u16 set; /* what to set */
465 __u16 enable; /* cursor on/off */
466 __u16 rop; /* bitop operation */
467 const char __user *mask; /* cursor mask bits */
468 struct fbcurpos hot; /* cursor hot spot */
469 struct fb_image_user image; /* Cursor image */
470};
471
472/*
473 * Register/unregister for framebuffer events
474 */
475
476/* The resolution of the passed in fb_info about to change */
477#define FB_EVENT_MODE_CHANGE 0x01
478/* The display on this fb_info is beeing suspended, no access to the
479 * framebuffer is allowed any more after that call returns
480 */
481#define FB_EVENT_SUSPEND 0x02
482/* The display on this fb_info was resumed, you can restore the display
483 * if you own it
484 */
485#define FB_EVENT_RESUME 0x03
486/* An entry from the modelist was removed */
487#define FB_EVENT_MODE_DELETE 0x04
488/* A driver registered itself */
489#define FB_EVENT_FB_REGISTERED 0x05
490/* get console to framebuffer mapping */
491#define FB_EVENT_GET_CONSOLE_MAP 0x06
492/* set console to framebuffer mapping */
493#define FB_EVENT_SET_CONSOLE_MAP 0x07
494/* A display blank is requested */
495#define FB_EVENT_BLANK 0x08
496/* Private modelist is to be replaced */
497#define FB_EVENT_NEW_MODELIST 0x09
7726e9e1
AD		 498/* The resolution of the passed in fb_info about to change and
499 all vc's should be changed */
500#define FB_EVENT_MODE_CHANGE_ALL 0x0A
1da177e4
LT		 501
502struct fb_event {
503 struct fb_info *info;
504 void *data;
505};
506
507
508extern int fb_register_client(struct notifier_block *nb);
509extern int fb_unregister_client(struct notifier_block *nb);
510
511/*
512 * Pixmap structure definition
513 *
514 * The purpose of this structure is to translate data
515 * from the hardware independent format of fbdev to what
516 * format the hardware needs.
517 */
518
519#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
520#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
521#define FB_PIXMAP_IO 4 /* memory is iomapped */
522#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
523
524struct fb_pixmap {
525 u8 *addr; /* pointer to memory */
526 u32 size; /* size of buffer in bytes */
527 u32 offset; /* current offset to buffer */
528 u32 buf_align; /* byte alignment of each bitmap */
529 u32 scan_align; /* alignment per scanline */
f5a9951c 530 u32 access_align; /* alignment per read/write (bits) */
1da177e4
LT		 531 u32 flags; /* see FB_PIXMAP_* */
532 /* access methods */
f5a9951c
JS		 533 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
534 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
1da177e4
LT		 535};
536
537
538/*
539 * Frame buffer operations
540 *
541 * LOCKING NOTE: those functions must _ALL_ be called with the console
542 * semaphore held, this is the only suitable locking mecanism we have
543 * in 2.6. Some may be called at interrupt time at this point though.
544 */
545
546struct fb_ops {
547 /* open/release and usage marking */
548 struct module *owner;
549 int (*fb_open)(struct fb_info *info, int user);
550 int (*fb_release)(struct fb_info *info, int user);
551
552 /* For framebuffers with strange non linear layouts or that do not
553 * work with normal memory mapped access
554 */
555 ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos);
556 ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
557
558 /* checks var and eventually tweaks it to something supported,
559 * DO NOT MODIFY PAR */
560 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
561
562 /* set the video mode according to info->var */
563 int (*fb_set_par)(struct fb_info *info);
564
565 /* set color register */
566 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
567 unsigned blue, unsigned transp, struct fb_info *info);
568
71494376
BH		 569 /* set color registers in batch */
570 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
571
1da177e4
LT		 572 /* blank display */
573 int (*fb_blank)(int blank, struct fb_info *info);
574
575 /* pan display */
576 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
577
578 /* Draws a rectangle */
579 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
580 /* Copy data from area to another */
581 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
582 /* Draws a image to the display */
583 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
584
585 /* Draws cursor */
586 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
587
588 /* Rotates the display */
589 void (*fb_rotate)(struct fb_info *info, int angle);
590
591 /* wait for blit idle, optional */
592 int (*fb_sync)(struct fb_info *info);
593
594 /* perform fb specific ioctl (optional) */
595 int (*fb_ioctl)(struct inode *inode, struct file *file, unsigned int cmd,
596 unsigned long arg, struct fb_info *info);
597
598 /* Handle 32bit compat ioctl (optional) */
599 long (*fb_compat_ioctl)(struct file *f, unsigned cmd, unsigned long arg,
600 struct fb_info *info);
601
602 /* perform fb specific mmap */
603 int (*fb_mmap)(struct fb_info *info, struct file *file, struct vm_area_struct *vma);
604};
605
606#ifdef CONFIG_FB_TILEBLITTING
607
608#define FB_TILE_CURSOR_NONE 0
609#define FB_TILE_CURSOR_UNDERLINE 1
610#define FB_TILE_CURSOR_LOWER_THIRD 2
611#define FB_TILE_CURSOR_LOWER_HALF 3
612#define FB_TILE_CURSOR_TWO_THIRDS 4
613#define FB_TILE_CURSOR_BLOCK 5
614
615struct fb_tilemap {
616 __u32 width; /* width of each tile in pixels */
617 __u32 height; /* height of each tile in scanlines */
618 __u32 depth; /* color depth of each tile */
619 __u32 length; /* number of tiles in the map */
620 __u8 *data; /* actual tile map: a bitmap array, packed
621 to the nearest byte */
622};
623
624struct fb_tilerect {
625 __u32 sx; /* origin in the x-axis */
626 __u32 sy; /* origin in the y-axis */
627 __u32 width; /* number of tiles in the x-axis */
628 __u32 height; /* number of tiles in the y-axis */
629 __u32 index; /* what tile to use: index to tile map */
630 __u32 fg; /* foreground color */
631 __u32 bg; /* background color */
632 __u32 rop; /* raster operation */
633};
634
635struct fb_tilearea {
636 __u32 sx; /* source origin in the x-axis */
637 __u32 sy; /* source origin in the y-axis */
638 __u32 dx; /* destination origin in the x-axis */
639 __u32 dy; /* destination origin in the y-axis */
640 __u32 width; /* number of tiles in the x-axis */
641 __u32 height; /* number of tiles in the y-axis */
642};
643
644struct fb_tileblit {
645 __u32 sx; /* origin in the x-axis */
646 __u32 sy; /* origin in the y-axis */
647 __u32 width; /* number of tiles in the x-axis */
648 __u32 height; /* number of tiles in the y-axis */
649 __u32 fg; /* foreground color */
650 __u32 bg; /* background color */
651 __u32 length; /* number of tiles to draw */
652 __u32 *indices; /* array of indices to tile map */
653};
654
655struct fb_tilecursor {
656 __u32 sx; /* cursor position in the x-axis */
657 __u32 sy; /* cursor position in the y-axis */
658 __u32 mode; /* 0 = erase, 1 = draw */
659 __u32 shape; /* see FB_TILE_CURSOR_* */
660 __u32 fg; /* foreground color */
661 __u32 bg; /* background color */
662};
663
664struct fb_tile_ops {
665 /* set tile characteristics */
666 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
667
668 /* all dimensions from hereon are in terms of tiles */
669
670 /* move a rectangular region of tiles from one area to another*/
671 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
672 /* fill a rectangular region with a tile */
673 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
674 /* copy an array of tiles */
675 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
676 /* cursor */
677 void (*fb_tilecursor)(struct fb_info *info,
678 struct fb_tilecursor *cursor);
679};
680#endif /* CONFIG_FB_TILEBLITTING */
681
682/* FBINFO_* = fb_info.flags bit flags */
683#define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
684#define FBINFO_HWACCEL_DISABLED 0x0002
685 /* When FBINFO_HWACCEL_DISABLED is set:
686 * Hardware acceleration is turned off. Software implementations
687 * of required functions (copyarea(), fillrect(), and imageblit())
688 * takes over; acceleration engine should be in a quiescent state */
689
690/* hints */
691#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
692#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
693
694/* hardware supported ops */
695/* semantics: when a bit is set, it indicates that the operation is
696 * accelerated by hardware.
697 * required functions will still work even if the bit is not set.
698 * optional functions may not even exist if the flag bit is not set.
699 */
700#define FBINFO_HWACCEL_NONE 0x0000
701#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
702#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
703#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
704#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
705#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
706#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
707#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
708
709#define FBINFO_MISC_USEREVENT 0x10000 /* event request
710 from userspace */
711#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
712
713struct fb_info {
714 int node;
715 int flags;
716 struct fb_var_screeninfo var; /* Current var */
717 struct fb_fix_screeninfo fix; /* Current fix */
718 struct fb_monspecs monspecs; /* Current Monitor specs */
719 struct work_struct queue; /* Framebuffer event queue */
720 struct fb_pixmap pixmap; /* Image hardware mapper */
721 struct fb_pixmap sprite; /* Cursor hardware mapper */
722 struct fb_cmap cmap; /* Current cmap */
723 struct list_head modelist; /* mode list */
724 struct fb_videomode *mode; /* current mode */
725 struct fb_ops *fbops;
726 struct device *device;
727 struct class_device *class_device; /* sysfs per device attrs */
728#ifdef CONFIG_FB_TILEBLITTING
729 struct fb_tile_ops *tileops; /* Tile Blitting */
730#endif
731 char __iomem *screen_base; /* Virtual address */
732 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
733 void *pseudo_palette; /* Fake palette of 16 colors */
734#define FBINFO_STATE_RUNNING 0
735#define FBINFO_STATE_SUSPENDED 1
736 u32 state; /* Hardware state i.e suspend */
737 void *fbcon_par; /* fbcon use-only private area */
738 /* From here on everything is device dependent */
739 void *par;
740};
741
742#ifdef MODULE
743#define FBINFO_DEFAULT FBINFO_MODULE
744#else
745#define FBINFO_DEFAULT 0
746#endif
747
748// This will go away
749#define FBINFO_FLAG_MODULE FBINFO_MODULE
750#define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
751
752/* This will go away
753 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
754 * when it wants to turn the acceleration engine on. This is
755 * really a separate operation, and should be modified via sysfs.
756 * But for now, we leave it broken with the following define
757 */
758#define STUPID_ACCELF_TEXT_SHIT
759
760// This will go away
761#if defined(__sparc__)
762
763/* We map all of our framebuffers such that big-endian accesses
764 * are what we want, so the following is sufficient.
765 */
766
767// This will go away
768#define fb_readb sbus_readb
769#define fb_readw sbus_readw
770#define fb_readl sbus_readl
771#define fb_readq sbus_readq
772#define fb_writeb sbus_writeb
773#define fb_writew sbus_writew
774#define fb_writel sbus_writel
775#define fb_writeq sbus_writeq
776#define fb_memset sbus_memset_io
777
778#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__)
779
780#define fb_readb __raw_readb
781#define fb_readw __raw_readw
782#define fb_readl __raw_readl
783#define fb_readq __raw_readq
784#define fb_writeb __raw_writeb
785#define fb_writew __raw_writew
786#define fb_writel __raw_writel
787#define fb_writeq __raw_writeq
788#define fb_memset memset_io
789
790#else
791
792#define fb_readb(addr) (*(volatile u8 *) (addr))
793#define fb_readw(addr) (*(volatile u16 *) (addr))
794#define fb_readl(addr) (*(volatile u32 *) (addr))
795#define fb_readq(addr) (*(volatile u64 *) (addr))
796#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
797#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
798#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
799#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
800#define fb_memset memset
801
802#endif
803
804 /*
805 * `Generic' versions of the frame buffer device operations
806 */
807
808extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
809extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
810extern int fb_blank(struct fb_info *info, int blank);
811extern int soft_cursor(struct fb_info *info, struct fb_cursor *cursor);
812extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
813extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
814extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
815
816/* drivers/video/fbmem.c */
817extern int register_framebuffer(struct fb_info *fb_info);
818extern int unregister_framebuffer(struct fb_info *fb_info);
819extern int fb_prepare_logo(struct fb_info *fb_info);
820extern int fb_show_logo(struct fb_info *fb_info);
821extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
f1ab5dac 822extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1da177e4 823 u32 height, u32 shift_high, u32 shift_low, u32 mod);
f1ab5dac 824extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1da177e4
LT		 825extern void fb_set_suspend(struct fb_info *info, int state);
826extern int fb_get_color_depth(struct fb_var_screeninfo *var);
827extern int fb_get_options(char *name, char **option);
828extern int fb_new_modelist(struct fb_info *info);
829
830extern struct fb_info *registered_fb[FB_MAX];
831extern int num_registered_fb;
832
833/* drivers/video/fbsysfs.c */
834extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
835extern void framebuffer_release(struct fb_info *info);
836extern int fb_init_class_device(struct fb_info *fb_info);
837extern void fb_cleanup_class_device(struct fb_info *head);
838
839/* drivers/video/fbmon.c */
840#define FB_MAXTIMINGS 0
841#define FB_VSYNCTIMINGS 1
842#define FB_HSYNCTIMINGS 2
843#define FB_DCLKTIMINGS 3
844#define FB_IGNOREMON 0x100
845
846#define FB_MODE_IS_UNKNOWN 0
847#define FB_MODE_IS_DETAILED 1
848#define FB_MODE_IS_STANDARD 2
849#define FB_MODE_IS_VESA 4
850#define FB_MODE_IS_CALCULATED 8
851#define FB_MODE_IS_FIRST 16
852#define FB_MODE_IS_FROM_VAR 32
853
854extern int fbmon_valid_timings(u_int pixclock, u_int htotal, u_int vtotal,
855 const struct fb_info *fb_info);
856extern int fbmon_dpms(const struct fb_info *fb_info);
857extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
858 struct fb_info *info);
859extern int fb_validate_mode(const struct fb_var_screeninfo *var,
860 struct fb_info *info);
861extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
5e518d76
AD		 862extern const unsigned char *fb_firmware_edid(struct device *device);
863extern void fb_edid_to_monspecs(unsigned char *edid,
864 struct fb_monspecs *specs);
1da177e4
LT		 865extern void fb_destroy_modedb(struct fb_videomode *modedb);
866
867/* drivers/video/modedb.c */
868#define VESA_MODEDB_SIZE 34
869extern void fb_var_to_videomode(struct fb_videomode *mode,
870 struct fb_var_screeninfo *var);
871extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
872 struct fb_videomode *mode);
873extern int fb_mode_is_equal(struct fb_videomode *mode1,
874 struct fb_videomode *mode2);
875extern int fb_add_videomode(struct fb_videomode *mode, struct list_head *head);
876extern void fb_delete_videomode(struct fb_videomode *mode,
877 struct list_head *head);
878extern struct fb_videomode *fb_match_mode(struct fb_var_screeninfo *var,
879 struct list_head *head);
880extern struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var,
881 struct list_head *head);
882extern struct fb_videomode *fb_find_nearest_mode(struct fb_var_screeninfo *var,
883 struct list_head *head);
884extern void fb_destroy_modelist(struct list_head *head);
885extern void fb_videomode_to_modelist(struct fb_videomode *modedb, int num,
886 struct list_head *head);
887
888/* drivers/video/fbcmap.c */
889extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
890extern void fb_dealloc_cmap(struct fb_cmap *cmap);
891extern int fb_copy_cmap(struct fb_cmap *from, struct fb_cmap *to);
892extern int fb_cmap_to_user(struct fb_cmap *from, struct fb_cmap_user *to);
893extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
894extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
895extern struct fb_cmap *fb_default_cmap(int len);
896extern void fb_invert_cmaps(void);
897
898struct fb_videomode {
899 const char *name; /* optional */
900 u32 refresh; /* optional */
901 u32 xres;
902 u32 yres;
903 u32 pixclock;
904 u32 left_margin;
905 u32 right_margin;
906 u32 upper_margin;
907 u32 lower_margin;
908 u32 hsync_len;
909 u32 vsync_len;
910 u32 sync;
911 u32 vmode;
912 u32 flag;
913};
914
915extern const struct fb_videomode vesa_modes[];
916
917struct fb_modelist {
918 struct list_head list;
919 struct fb_videomode mode;
920};
921
922extern int fb_find_mode(struct fb_var_screeninfo *var,
923 struct fb_info *info, const char *mode_option,
924 const struct fb_videomode *db,
925 unsigned int dbsize,
926 const struct fb_videomode *default_mode,
927 unsigned int default_bpp);
928
929#endif /* __KERNEL__ */
930
931#endif /* _LINUX_FB_H */
Linux 6.x block layer and io_uring tree(s)