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 <linux/types.h>
5#include <linux/i2c.h>
6#ifdef __KERNEL__
7#include <linux/kgdb.h>
8#endif /* __KERNEL__ */
9
10/* Definitions of frame buffers */
11
12#define FB_MAX 32 /* sufficient for now */
13
14/* ioctls
15 0x46 is 'F' */
16#define FBIOGET_VSCREENINFO 0x4600
17#define FBIOPUT_VSCREENINFO 0x4601
18#define FBIOGET_FSCREENINFO 0x4602
19#define FBIOGETCMAP 0x4604
20#define FBIOPUTCMAP 0x4605
21#define FBIOPAN_DISPLAY 0x4606
22#ifdef __KERNEL__
23#define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user)
24#else
25#define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor)
26#endif
27/* 0x4607-0x460B are defined below */
28/* #define FBIOGET_MONITORSPEC 0x460C */
29/* #define FBIOPUT_MONITORSPEC 0x460D */
30/* #define FBIOSWITCH_MONIBIT 0x460E */
31#define FBIOGET_CON2FBMAP 0x460F
32#define FBIOPUT_CON2FBMAP 0x4610
33#define FBIOBLANK 0x4611 /* arg: 0 or vesa level + 1 */
34#define FBIOGET_VBLANK _IOR('F', 0x12, struct fb_vblank)
35#define FBIO_ALLOC 0x4613
36#define FBIO_FREE 0x4614
37#define FBIOGET_GLYPH 0x4615
38#define FBIOGET_HWCINFO 0x4616
39#define FBIOPUT_MODEINFO 0x4617
40#define FBIOGET_DISPINFO 0x4618
41#define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
42
43#define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
44#define FB_TYPE_PLANES 1 /* Non interleaved planes */
45#define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */
46#define FB_TYPE_TEXT 3 /* Text/attributes */
47#define FB_TYPE_VGA_PLANES 4 /* EGA/VGA planes */
48
49#define FB_AUX_TEXT_MDA 0 /* Monochrome text */
50#define FB_AUX_TEXT_CGA 1 /* CGA/EGA/VGA Color text */
51#define FB_AUX_TEXT_S3_MMIO 2 /* S3 MMIO fasttext */
52#define FB_AUX_TEXT_MGA_STEP16 3 /* MGA Millenium I: text, attr, 14 reserved bytes */
53#define FB_AUX_TEXT_MGA_STEP8 4 /* other MGAs: text, attr, 6 reserved bytes */
54#define FB_AUX_TEXT_SVGA_GROUP 8 /* 8-15: SVGA tileblit compatible modes */
55#define FB_AUX_TEXT_SVGA_MASK 7 /* lower three bits says step */
56#define FB_AUX_TEXT_SVGA_STEP2 8 /* SVGA text mode: text, attr */
57#define FB_AUX_TEXT_SVGA_STEP4 9 /* SVGA text mode: text, attr, 2 reserved bytes */
58#define FB_AUX_TEXT_SVGA_STEP8 10 /* SVGA text mode: text, attr, 6 reserved bytes */
59#define FB_AUX_TEXT_SVGA_STEP16 11 /* SVGA text mode: text, attr, 14 reserved bytes */
60#define FB_AUX_TEXT_SVGA_LAST 15 /* reserved up to 15 */
61
62#define FB_AUX_VGA_PLANES_VGA4 0 /* 16 color planes (EGA/VGA) */
63#define FB_AUX_VGA_PLANES_CFB4 1 /* CFB4 in planes (VGA) */
64#define FB_AUX_VGA_PLANES_CFB8 2 /* CFB8 in planes (VGA) */
65
66#define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */
67#define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */
68#define FB_VISUAL_TRUECOLOR 2 /* True color */
69#define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */
70#define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */
71#define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */
72
73#define FB_ACCEL_NONE 0 /* no hardware accelerator */
74#define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */
75#define FB_ACCEL_AMIGABLITT 2 /* Amiga Blitter */
76#define FB_ACCEL_S3_TRIO64 3 /* Cybervision64 (S3 Trio64) */
77#define FB_ACCEL_NCR_77C32BLT 4 /* RetinaZ3 (NCR 77C32BLT) */
78#define FB_ACCEL_S3_VIRGE 5 /* Cybervision64/3D (S3 ViRGE) */
79#define FB_ACCEL_ATI_MACH64GX 6 /* ATI Mach 64GX family */
80#define FB_ACCEL_DEC_TGA 7 /* DEC 21030 TGA */
81#define FB_ACCEL_ATI_MACH64CT 8 /* ATI Mach 64CT family */
82#define FB_ACCEL_ATI_MACH64VT 9 /* ATI Mach 64CT family VT class */
83#define FB_ACCEL_ATI_MACH64GT 10 /* ATI Mach 64CT family GT class */
84#define FB_ACCEL_SUN_CREATOR 11 /* Sun Creator/Creator3D */
85#define FB_ACCEL_SUN_CGSIX 12 /* Sun cg6 */
86#define FB_ACCEL_SUN_LEO 13 /* Sun leo/zx */
87#define FB_ACCEL_IMS_TWINTURBO 14 /* IMS Twin Turbo */
88#define FB_ACCEL_3DLABS_PERMEDIA2 15 /* 3Dlabs Permedia 2 */
89#define FB_ACCEL_MATROX_MGA2064W 16 /* Matrox MGA2064W (Millenium) */
90#define FB_ACCEL_MATROX_MGA1064SG 17 /* Matrox MGA1064SG (Mystique) */
91#define FB_ACCEL_MATROX_MGA2164W 18 /* Matrox MGA2164W (Millenium II) */
92#define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
93#define FB_ACCEL_MATROX_MGAG100 20 /* Matrox G100 (Productiva G100) */
94#define FB_ACCEL_MATROX_MGAG200 21 /* Matrox G200 (Myst, Mill, ...) */
95#define FB_ACCEL_SUN_CG14 22 /* Sun cgfourteen */
96#define FB_ACCEL_SUN_BWTWO 23 /* Sun bwtwo */
97#define FB_ACCEL_SUN_CGTHREE 24 /* Sun cgthree */
98#define FB_ACCEL_SUN_TCX 25 /* Sun tcx */
99#define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */
100#define FB_ACCEL_NV3 27 /* nVidia RIVA 128 */
101#define FB_ACCEL_NV4 28 /* nVidia RIVA TNT */
102#define FB_ACCEL_NV5 29 /* nVidia RIVA TNT2 */
103#define FB_ACCEL_CT_6555x 30 /* C&T 6555x */
104#define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */
105#define FB_ACCEL_ATI_RAGE128 32 /* ATI Rage128 family */
106#define FB_ACCEL_IGS_CYBER2000 33 /* CyberPro 2000 */
107#define FB_ACCEL_IGS_CYBER2010 34 /* CyberPro 2010 */
108#define FB_ACCEL_IGS_CYBER5000 35 /* CyberPro 5000 */
109#define FB_ACCEL_SIS_GLAMOUR 36 /* SiS 300/630/540 */
110#define FB_ACCEL_3DLABS_PERMEDIA3 37 /* 3Dlabs Permedia 3 */
111#define FB_ACCEL_ATI_RADEON 38 /* ATI Radeon family */
112#define FB_ACCEL_I810 39 /* Intel 810/815 */
113#define FB_ACCEL_SIS_GLAMOUR_2 40 /* SiS 315, 650, 740 */
114#define FB_ACCEL_SIS_XABRE 41 /* SiS 330 ("Xabre") */
115#define FB_ACCEL_I830 42 /* Intel 830M/845G/85x/865G */
116#define FB_ACCEL_NV_10 43 /* nVidia Arch 10 */
117#define FB_ACCEL_NV_20 44 /* nVidia Arch 20 */
118#define FB_ACCEL_NV_30 45 /* nVidia Arch 30 */
119#define FB_ACCEL_NV_40 46 /* nVidia Arch 40 */
120#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
121#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
122#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
123#define FB_ACCEL_TRIDENT_TGUI 50 /* Trident TGUI */
124#define FB_ACCEL_TRIDENT_3DIMAGE 51 /* Trident 3DImage */
125#define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */
126#define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */
127#define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */
128#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
129#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
130#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
131#define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097 */
132#define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160 */
133#define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200 */
134#define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230 */
135#define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360 */
136#define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380 */
137#define FB_ACCEL_PXA3XX 99 /* PXA3xx */
138
139#define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */
140#define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */
141#define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
142#define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */
143#define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
144#define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */
145#define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
146#define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */
147#define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */
148#define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */
149#define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */
150#define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */
151#define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */
152#define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
153#define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
154
155#define FB_ACCEL_PUV3_UNIGFX 0xa0 /* PKUnity-v3 Unigfx */
156
157struct fb_fix_screeninfo {
158 char id[16]; /* identification string eg "TT Builtin" */
159 unsigned long smem_start; /* Start of frame buffer mem */
160 /* (physical address) */
161 __u32 smem_len; /* Length of frame buffer mem */
162 __u32 type; /* see FB_TYPE_* */
163 __u32 type_aux; /* Interleave for interleaved Planes */
164 __u32 visual; /* see FB_VISUAL_* */
165 __u16 xpanstep; /* zero if no hardware panning */
166 __u16 ypanstep; /* zero if no hardware panning */
167 __u16 ywrapstep; /* zero if no hardware ywrap */
168 __u32 line_length; /* length of a line in bytes */
169 unsigned long mmio_start; /* Start of Memory Mapped I/O */
170 /* (physical address) */
171 __u32 mmio_len; /* Length of Memory Mapped I/O */
172 __u32 accel; /* Indicate to driver which */
173 /* specific chip/card we have */
174 __u16 reserved[3]; /* Reserved for future compatibility */
175};
176
177/* Interpretation of offset for color fields: All offsets are from the right,
178 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
179 * can use the offset as right argument to <<). A pixel afterwards is a bit
180 * stream and is written to video memory as that unmodified.
181 *
182 * For pseudocolor: offset and length should be the same for all color
183 * components. Offset specifies the position of the least significant bit
184 * of the pallette index in a pixel value. Length indicates the number
185 * of available palette entries (i.e. # of entries = 1 << length).
186 */
187struct fb_bitfield {
188 __u32 offset; /* beginning of bitfield */
189 __u32 length; /* length of bitfield */
190 __u32 msb_right; /* != 0 : Most significant bit is */
191 /* right */
192};
193
194#define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
195#define FB_NONSTD_REV_PIX_IN_B 2 /* order of pixels in each byte is reversed */
196
197#define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
198#define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
199#define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
200#define FB_ACTIVATE_MASK 15
201 /* values */
202#define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
203#define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
204#define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
205#define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
206#define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
207
208#define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */
209
210#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
211#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
212#define FB_SYNC_EXT 4 /* external sync */
213#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
214#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
215 /* vtotal = 144d/288n/576i => PAL */
216 /* vtotal = 121d/242n/484i => NTSC */
217#define FB_SYNC_ON_GREEN 32 /* sync on green */
218
219#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
220#define FB_VMODE_INTERLACED 1 /* interlaced */
221#define FB_VMODE_DOUBLE 2 /* double scan */
222#define FB_VMODE_ODD_FLD_FIRST 4 /* interlaced: top line first */
223#define FB_VMODE_MASK 255
224
225#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
226#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
227#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
228
229/*
230 * Display rotation support
231 */
232#define FB_ROTATE_UR 0
233#define FB_ROTATE_CW 1
234#define FB_ROTATE_UD 2
235#define FB_ROTATE_CCW 3
236
237#define PICOS2KHZ(a) (1000000000UL/(a))
238#define KHZ2PICOS(a) (1000000000UL/(a))
239
240struct fb_var_screeninfo {
241 __u32 xres; /* visible resolution */
242 __u32 yres;
243 __u32 xres_virtual; /* virtual resolution */
244 __u32 yres_virtual;
245 __u32 xoffset; /* offset from virtual to visible */
246 __u32 yoffset; /* resolution */
247
248 __u32 bits_per_pixel; /* guess what */
249 __u32 grayscale; /* != 0 Graylevels instead of colors */
250
251 struct fb_bitfield red; /* bitfield in fb mem if true color, */
252 struct fb_bitfield green; /* else only length is significant */
253 struct fb_bitfield blue;
254 struct fb_bitfield transp; /* transparency */
255
256 __u32 nonstd; /* != 0 Non standard pixel format */
257
258 __u32 activate; /* see FB_ACTIVATE_* */
259
260 __u32 height; /* height of picture in mm */
261 __u32 width; /* width of picture in mm */
262
263 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
264
265 /* Timing: All values in pixclocks, except pixclock (of course) */
266 __u32 pixclock; /* pixel clock in ps (pico seconds) */
267 __u32 left_margin; /* time from sync to picture */
268 __u32 right_margin; /* time from picture to sync */
269 __u32 upper_margin; /* time from sync to picture */
270 __u32 lower_margin;
271 __u32 hsync_len; /* length of horizontal sync */
272 __u32 vsync_len; /* length of vertical sync */
273 __u32 sync; /* see FB_SYNC_* */
274 __u32 vmode; /* see FB_VMODE_* */
275 __u32 rotate; /* angle we rotate counter clockwise */
276 __u32 reserved[5]; /* Reserved for future compatibility */
277};
278
279struct fb_cmap {
280 __u32 start; /* First entry */
281 __u32 len; /* Number of entries */
282 __u16 *red; /* Red values */
283 __u16 *green;
284 __u16 *blue;
285 __u16 *transp; /* transparency, can be NULL */
286};
287
288struct fb_con2fbmap {
289 __u32 console;
290 __u32 framebuffer;
291};
292
293/* VESA Blanking Levels */
294#define VESA_NO_BLANKING 0
295#define VESA_VSYNC_SUSPEND 1
296#define VESA_HSYNC_SUSPEND 2
297#define VESA_POWERDOWN 3
298
299
300enum {
301 /* screen: unblanked, hsync: on, vsync: on */
302 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
303
304 /* screen: blanked, hsync: on, vsync: on */
305 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
306
307 /* screen: blanked, hsync: on, vsync: off */
308 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
309
310 /* screen: blanked, hsync: off, vsync: on */
311 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
312
313 /* screen: blanked, hsync: off, vsync: off */
314 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
315};
316
317#define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
318#define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
319#define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
320#define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
321#define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
322#define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
323#define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
324#define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
325#define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
326
327struct fb_vblank {
328 __u32 flags; /* FB_VBLANK flags */
329 __u32 count; /* counter of retraces since boot */
330 __u32 vcount; /* current scanline position */
331 __u32 hcount; /* current scandot position */
332 __u32 reserved[4]; /* reserved for future compatibility */
333};
334
335/* Internal HW accel */
336#define ROP_COPY 0
337#define ROP_XOR 1
338
339struct fb_copyarea {
340 __u32 dx;
341 __u32 dy;
342 __u32 width;
343 __u32 height;
344 __u32 sx;
345 __u32 sy;
346};
347
348struct fb_fillrect {
349 __u32 dx; /* screen-relative */
350 __u32 dy;
351 __u32 width;
352 __u32 height;
353 __u32 color;
354 __u32 rop;
355};
356
357struct fb_image {
358 __u32 dx; /* Where to place image */
359 __u32 dy;
360 __u32 width; /* Size of image */
361 __u32 height;
362 __u32 fg_color; /* Only used when a mono bitmap */
363 __u32 bg_color;
364 __u8 depth; /* Depth of the image */
365 const char *data; /* Pointer to image data */
366 struct fb_cmap cmap; /* color map info */
367};
368
369/*
370 * hardware cursor control
371 */
372
373#define FB_CUR_SETIMAGE 0x01
374#define FB_CUR_SETPOS 0x02
375#define FB_CUR_SETHOT 0x04
376#define FB_CUR_SETCMAP 0x08
377#define FB_CUR_SETSHAPE 0x10
378#define FB_CUR_SETSIZE 0x20
379#define FB_CUR_SETALL 0xFF
380
381struct fbcurpos {
382 __u16 x, y;
383};
384
385struct fb_cursor {
386 __u16 set; /* what to set */
387 __u16 enable; /* cursor on/off */
388 __u16 rop; /* bitop operation */
389 const char *mask; /* cursor mask bits */
390 struct fbcurpos hot; /* cursor hot spot */
391 struct fb_image image; /* Cursor image */
392};
393
394#ifdef CONFIG_FB_BACKLIGHT
395/* Settings for the generic backlight code */
396#define FB_BACKLIGHT_LEVELS 128
397#define FB_BACKLIGHT_MAX 0xFF
398#endif
399
400#ifdef __KERNEL__
401
402#include <linux/fs.h>
403#include <linux/init.h>
404#include <linux/device.h>
405#include <linux/workqueue.h>
406#include <linux/notifier.h>
407#include <linux/list.h>
408#include <linux/backlight.h>
409#include <linux/slab.h>
410#include <asm/io.h>
411
412struct vm_area_struct;
413struct fb_info;
414struct device;
415struct file;
416
417/* Definitions below are used in the parsed monitor specs */
418#define FB_DPMS_ACTIVE_OFF 1
419#define FB_DPMS_SUSPEND 2
420#define FB_DPMS_STANDBY 4
421
422#define FB_DISP_DDI 1
423#define FB_DISP_ANA_700_300 2
424#define FB_DISP_ANA_714_286 4
425#define FB_DISP_ANA_1000_400 8
426#define FB_DISP_ANA_700_000 16
427
428#define FB_DISP_MONO 32
429#define FB_DISP_RGB 64
430#define FB_DISP_MULTI 128
431#define FB_DISP_UNKNOWN 256
432
433#define FB_SIGNAL_NONE 0
434#define FB_SIGNAL_BLANK_BLANK 1
435#define FB_SIGNAL_SEPARATE 2
436#define FB_SIGNAL_COMPOSITE 4
437#define FB_SIGNAL_SYNC_ON_GREEN 8
438#define FB_SIGNAL_SERRATION_ON 16
439
440#define FB_MISC_PRIM_COLOR 1
441#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
442struct fb_chroma {
443 __u32 redx; /* in fraction of 1024 */
444 __u32 greenx;
445 __u32 bluex;
446 __u32 whitex;
447 __u32 redy;
448 __u32 greeny;
449 __u32 bluey;
450 __u32 whitey;
451};
452
453struct fb_monspecs {
454 struct fb_chroma chroma;
455 struct fb_videomode *modedb; /* mode database */
456 __u8 manufacturer[4]; /* Manufacturer */
457 __u8 monitor[14]; /* Monitor String */
458 __u8 serial_no[14]; /* Serial Number */
459 __u8 ascii[14]; /* ? */
460 __u32 modedb_len; /* mode database length */
461 __u32 model; /* Monitor Model */
462 __u32 serial; /* Serial Number - Integer */
463 __u32 year; /* Year manufactured */
464 __u32 week; /* Week Manufactured */
465 __u32 hfmin; /* hfreq lower limit (Hz) */
466 __u32 hfmax; /* hfreq upper limit (Hz) */
467 __u32 dclkmin; /* pixelclock lower limit (Hz) */
468 __u32 dclkmax; /* pixelclock upper limit (Hz) */
469 __u16 input; /* display type - see FB_DISP_* */
470 __u16 dpms; /* DPMS support - see FB_DPMS_ */
471 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
472 __u16 vfmin; /* vfreq lower limit (Hz) */
473 __u16 vfmax; /* vfreq upper limit (Hz) */
474 __u16 gamma; /* Gamma - in fractions of 100 */
475 __u16 gtf : 1; /* supports GTF */
476 __u16 misc; /* Misc flags - see FB_MISC_* */
477 __u8 version; /* EDID version... */
478 __u8 revision; /* ...and revision */
479 __u8 max_x; /* Maximum horizontal size (cm) */
480 __u8 max_y; /* Maximum vertical size (cm) */
481};
482
483struct fb_cmap_user {
484 __u32 start; /* First entry */
485 __u32 len; /* Number of entries */
486 __u16 __user *red; /* Red values */
487 __u16 __user *green;
488 __u16 __user *blue;
489 __u16 __user *transp; /* transparency, can be NULL */
490};
491
492struct fb_image_user {
493 __u32 dx; /* Where to place image */
494 __u32 dy;
495 __u32 width; /* Size of image */
496 __u32 height;
497 __u32 fg_color; /* Only used when a mono bitmap */
498 __u32 bg_color;
499 __u8 depth; /* Depth of the image */
500 const char __user *data; /* Pointer to image data */
501 struct fb_cmap_user cmap; /* color map info */
502};
503
504struct fb_cursor_user {
505 __u16 set; /* what to set */
506 __u16 enable; /* cursor on/off */
507 __u16 rop; /* bitop operation */
508 const char __user *mask; /* cursor mask bits */
509 struct fbcurpos hot; /* cursor hot spot */
510 struct fb_image_user image; /* Cursor image */
511};
512
513/*
514 * Register/unregister for framebuffer events
515 */
516
517/* The resolution of the passed in fb_info about to change */
518#define FB_EVENT_MODE_CHANGE 0x01
519/* The display on this fb_info is beeing suspended, no access to the
520 * framebuffer is allowed any more after that call returns
521 */
522#define FB_EVENT_SUSPEND 0x02
523/* The display on this fb_info was resumed, you can restore the display
524 * if you own it
525 */
526#define FB_EVENT_RESUME 0x03
527/* An entry from the modelist was removed */
528#define FB_EVENT_MODE_DELETE 0x04
529/* A driver registered itself */
530#define FB_EVENT_FB_REGISTERED 0x05
531/* A driver unregistered itself */
532#define FB_EVENT_FB_UNREGISTERED 0x06
533/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
534#define FB_EVENT_GET_CONSOLE_MAP 0x07
535/* CONSOLE-SPECIFIC: set console to framebuffer mapping */
536#define FB_EVENT_SET_CONSOLE_MAP 0x08
537/* A hardware display blank change occurred */
538#define FB_EVENT_BLANK 0x09
539/* Private modelist is to be replaced */
540#define FB_EVENT_NEW_MODELIST 0x0A
541/* The resolution of the passed in fb_info about to change and
542 all vc's should be changed */
543#define FB_EVENT_MODE_CHANGE_ALL 0x0B
544/* A software display blank change occurred */
545#define FB_EVENT_CONBLANK 0x0C
546/* Get drawing requirements */
547#define FB_EVENT_GET_REQ 0x0D
548/* Unbind from the console if possible */
549#define FB_EVENT_FB_UNBIND 0x0E
550/* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
551#define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
552
553struct fb_event {
554 struct fb_info *info;
555 void *data;
556};
557
558struct fb_blit_caps {
559 u32 x;
560 u32 y;
561 u32 len;
562 u32 flags;
563};
564
565extern int fb_register_client(struct notifier_block *nb);
566extern int fb_unregister_client(struct notifier_block *nb);
567extern int fb_notifier_call_chain(unsigned long val, void *v);
568/*
569 * Pixmap structure definition
570 *
571 * The purpose of this structure is to translate data
572 * from the hardware independent format of fbdev to what
573 * format the hardware needs.
574 */
575
576#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
577#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
578#define FB_PIXMAP_IO 4 /* memory is iomapped */
579#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
580
581struct fb_pixmap {
582 u8 *addr; /* pointer to memory */
583 u32 size; /* size of buffer in bytes */
584 u32 offset; /* current offset to buffer */
585 u32 buf_align; /* byte alignment of each bitmap */
586 u32 scan_align; /* alignment per scanline */
587 u32 access_align; /* alignment per read/write (bits) */
588 u32 flags; /* see FB_PIXMAP_* */
589 u32 blit_x; /* supported bit block dimensions (1-32)*/
590 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
591 /* blit_y = 1 << (height - 1) */
592 /* if 0, will be set to 0xffffffff (all)*/
593 /* access methods */
594 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
595 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
596};
597
598#ifdef CONFIG_FB_DEFERRED_IO
599struct fb_deferred_io {
600 /* delay between mkwrite and deferred handler */
601 unsigned long delay;
602 struct mutex lock; /* mutex that protects the page list */
603 struct list_head pagelist; /* list of touched pages */
604 /* callback */
605 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
606};
607#endif
608
609/*
610 * Frame buffer operations
611 *
612 * LOCKING NOTE: those functions must _ALL_ be called with the console
613 * semaphore held, this is the only suitable locking mechanism we have
614 * in 2.6. Some may be called at interrupt time at this point though.
615 *
616 * The exception to this is the debug related hooks. Putting the fb
617 * into a debug state (e.g. flipping to the kernel console) and restoring
618 * it must be done in a lock-free manner, so low level drivers should
619 * keep track of the initial console (if applicable) and may need to
620 * perform direct, unlocked hardware writes in these hooks.
621 */
622
623struct fb_ops {
624 /* open/release and usage marking */
625 struct module *owner;
626 int (*fb_open)(struct fb_info *info, int user);
627 int (*fb_release)(struct fb_info *info, int user);
628
629 /* For framebuffers with strange non linear layouts or that do not
630 * work with normal memory mapped access
631 */
632 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
633 size_t count, loff_t *ppos);
634 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
635 size_t count, loff_t *ppos);
636
637 /* checks var and eventually tweaks it to something supported,
638 * DO NOT MODIFY PAR */
639 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
640
641 /* set the video mode according to info->var */
642 int (*fb_set_par)(struct fb_info *info);
643
644 /* set color register */
645 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
646 unsigned blue, unsigned transp, struct fb_info *info);
647
648 /* set color registers in batch */
649 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
650
651 /* blank display */
652 int (*fb_blank)(int blank, struct fb_info *info);
653
654 /* pan display */
655 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
656
657 /* Draws a rectangle */
658 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
659 /* Copy data from area to another */
660 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
661 /* Draws a image to the display */
662 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
663
664 /* Draws cursor */
665 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
666
667 /* Rotates the display */
668 void (*fb_rotate)(struct fb_info *info, int angle);
669
670 /* wait for blit idle, optional */
671 int (*fb_sync)(struct fb_info *info);
672
673 /* perform fb specific ioctl (optional) */
674 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
675 unsigned long arg);
676
677 /* Handle 32bit compat ioctl (optional) */
678 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
679 unsigned long arg);
680
681 /* perform fb specific mmap */
682 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
683
684 /* get capability given var */
685 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
686 struct fb_var_screeninfo *var);
687
688 /* teardown any resources to do with this framebuffer */
689 void (*fb_destroy)(struct fb_info *info);
690
691 /* called at KDB enter and leave time to prepare the console */
692 int (*fb_debug_enter)(struct fb_info *info);
693 int (*fb_debug_leave)(struct fb_info *info);
694};
695
696#ifdef CONFIG_FB_TILEBLITTING
697#define FB_TILE_CURSOR_NONE 0
698#define FB_TILE_CURSOR_UNDERLINE 1
699#define FB_TILE_CURSOR_LOWER_THIRD 2
700#define FB_TILE_CURSOR_LOWER_HALF 3
701#define FB_TILE_CURSOR_TWO_THIRDS 4
702#define FB_TILE_CURSOR_BLOCK 5
703
704struct fb_tilemap {
705 __u32 width; /* width of each tile in pixels */
706 __u32 height; /* height of each tile in scanlines */
707 __u32 depth; /* color depth of each tile */
708 __u32 length; /* number of tiles in the map */
709 const __u8 *data; /* actual tile map: a bitmap array, packed
710 to the nearest byte */
711};
712
713struct fb_tilerect {
714 __u32 sx; /* origin in the x-axis */
715 __u32 sy; /* origin in the y-axis */
716 __u32 width; /* number of tiles in the x-axis */
717 __u32 height; /* number of tiles in the y-axis */
718 __u32 index; /* what tile to use: index to tile map */
719 __u32 fg; /* foreground color */
720 __u32 bg; /* background color */
721 __u32 rop; /* raster operation */
722};
723
724struct fb_tilearea {
725 __u32 sx; /* source origin in the x-axis */
726 __u32 sy; /* source origin in the y-axis */
727 __u32 dx; /* destination origin in the x-axis */
728 __u32 dy; /* destination origin in the y-axis */
729 __u32 width; /* number of tiles in the x-axis */
730 __u32 height; /* number of tiles in the y-axis */
731};
732
733struct fb_tileblit {
734 __u32 sx; /* origin in the x-axis */
735 __u32 sy; /* origin in the y-axis */
736 __u32 width; /* number of tiles in the x-axis */
737 __u32 height; /* number of tiles in the y-axis */
738 __u32 fg; /* foreground color */
739 __u32 bg; /* background color */
740 __u32 length; /* number of tiles to draw */
741 __u32 *indices; /* array of indices to tile map */
742};
743
744struct fb_tilecursor {
745 __u32 sx; /* cursor position in the x-axis */
746 __u32 sy; /* cursor position in the y-axis */
747 __u32 mode; /* 0 = erase, 1 = draw */
748 __u32 shape; /* see FB_TILE_CURSOR_* */
749 __u32 fg; /* foreground color */
750 __u32 bg; /* background color */
751};
752
753struct fb_tile_ops {
754 /* set tile characteristics */
755 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
756
757 /* all dimensions from hereon are in terms of tiles */
758
759 /* move a rectangular region of tiles from one area to another*/
760 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
761 /* fill a rectangular region with a tile */
762 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
763 /* copy an array of tiles */
764 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
765 /* cursor */
766 void (*fb_tilecursor)(struct fb_info *info,
767 struct fb_tilecursor *cursor);
768 /* get maximum length of the tile map */
769 int (*fb_get_tilemax)(struct fb_info *info);
770};
771#endif /* CONFIG_FB_TILEBLITTING */
772
773/* FBINFO_* = fb_info.flags bit flags */
774#define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
775#define FBINFO_HWACCEL_DISABLED 0x0002
776 /* When FBINFO_HWACCEL_DISABLED is set:
777 * Hardware acceleration is turned off. Software implementations
778 * of required functions (copyarea(), fillrect(), and imageblit())
779 * takes over; acceleration engine should be in a quiescent state */
780
781/* hints */
782#define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */
783#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
784#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
785
786/* hardware supported ops */
787/* semantics: when a bit is set, it indicates that the operation is
788 * accelerated by hardware.
789 * required functions will still work even if the bit is not set.
790 * optional functions may not even exist if the flag bit is not set.
791 */
792#define FBINFO_HWACCEL_NONE 0x0000
793#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
794#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
795#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
796#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
797#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
798#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
799#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
800
801#define FBINFO_MISC_USEREVENT 0x10000 /* event request
802 from userspace */
803#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
804
805/* A driver may set this flag to indicate that it does want a set_par to be
806 * called every time when fbcon_switch is executed. The advantage is that with
807 * this flag set you can really be sure that set_par is always called before
808 * any of the functions dependent on the correct hardware state or altering
809 * that state, even if you are using some broken X releases. The disadvantage
810 * is that it introduces unwanted delays to every console switch if set_par
811 * is slow. It is a good idea to try this flag in the drivers initialization
812 * code whenever there is a bug report related to switching between X and the
813 * framebuffer console.
814 */
815#define FBINFO_MISC_ALWAYS_SETPAR 0x40000
816
817/* where the fb is a firmware driver, and can be replaced with a proper one */
818#define FBINFO_MISC_FIRMWARE 0x80000
819/*
820 * Host and GPU endianness differ.
821 */
822#define FBINFO_FOREIGN_ENDIAN 0x100000
823/*
824 * Big endian math. This is the same flags as above, but with different
825 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
826 * and host endianness. Drivers should not use this flag.
827 */
828#define FBINFO_BE_MATH 0x100000
829
830/* report to the VT layer that this fb driver can accept forced console
831 output like oopses */
832#define FBINFO_CAN_FORCE_OUTPUT 0x200000
833
834struct fb_info {
835 atomic_t count;
836 int node;
837 int flags;
838 struct mutex lock; /* Lock for open/release/ioctl funcs */
839 struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
840 struct fb_var_screeninfo var; /* Current var */
841 struct fb_fix_screeninfo fix; /* Current fix */
842 struct fb_monspecs monspecs; /* Current Monitor specs */
843 struct work_struct queue; /* Framebuffer event queue */
844 struct fb_pixmap pixmap; /* Image hardware mapper */
845 struct fb_pixmap sprite; /* Cursor hardware mapper */
846 struct fb_cmap cmap; /* Current cmap */
847 struct list_head modelist; /* mode list */
848 struct fb_videomode *mode; /* current mode */
849
850#ifdef CONFIG_FB_BACKLIGHT
851 /* assigned backlight device */
852 /* set before framebuffer registration,
853 remove after unregister */
854 struct backlight_device *bl_dev;
855
856 /* Backlight level curve */
857 struct mutex bl_curve_mutex;
858 u8 bl_curve[FB_BACKLIGHT_LEVELS];
859#endif
860#ifdef CONFIG_FB_DEFERRED_IO
861 struct delayed_work deferred_work;
862 struct fb_deferred_io *fbdefio;
863#endif
864
865 struct fb_ops *fbops;
866 struct device *device; /* This is the parent */
867 struct device *dev; /* This is this fb device */
868 int class_flag; /* private sysfs flags */
869#ifdef CONFIG_FB_TILEBLITTING
870 struct fb_tile_ops *tileops; /* Tile Blitting */
871#endif
872 char __iomem *screen_base; /* Virtual address */
873 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
874 void *pseudo_palette; /* Fake palette of 16 colors */
875#define FBINFO_STATE_RUNNING 0
876#define FBINFO_STATE_SUSPENDED 1
877 u32 state; /* Hardware state i.e suspend */
878 void *fbcon_par; /* fbcon use-only private area */
879 /* From here on everything is device dependent */
880 void *par;
881 /* we need the PCI or similar aperture base/size not
882 smem_start/size as smem_start may just be an object
883 allocated inside the aperture so may not actually overlap */
884 struct apertures_struct {
885 unsigned int count;
886 struct aperture {
887 resource_size_t base;
888 resource_size_t size;
889 } ranges[0];
890 } *apertures;
891};
892
893static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
894 struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
895 + max_num * sizeof(struct aperture), GFP_KERNEL);
896 if (!a)
897 return NULL;
898 a->count = max_num;
899 return a;
900}
901
902#ifdef MODULE
903#define FBINFO_DEFAULT FBINFO_MODULE
904#else
905#define FBINFO_DEFAULT 0
906#endif
907
908// This will go away
909#define FBINFO_FLAG_MODULE FBINFO_MODULE
910#define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
911
912/* This will go away
913 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
914 * when it wants to turn the acceleration engine on. This is
915 * really a separate operation, and should be modified via sysfs.
916 * But for now, we leave it broken with the following define
917 */
918#define STUPID_ACCELF_TEXT_SHIT
919
920// This will go away
921#if defined(__sparc__)
922
923/* We map all of our framebuffers such that big-endian accesses
924 * are what we want, so the following is sufficient.
925 */
926
927// This will go away
928#define fb_readb sbus_readb
929#define fb_readw sbus_readw
930#define fb_readl sbus_readl
931#define fb_readq sbus_readq
932#define fb_writeb sbus_writeb
933#define fb_writew sbus_writew
934#define fb_writel sbus_writel
935#define fb_writeq sbus_writeq
936#define fb_memset sbus_memset_io
937#define fb_memcpy_fromfb sbus_memcpy_fromio
938#define fb_memcpy_tofb sbus_memcpy_toio
939
940#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
941
942#define fb_readb __raw_readb
943#define fb_readw __raw_readw
944#define fb_readl __raw_readl
945#define fb_readq __raw_readq
946#define fb_writeb __raw_writeb
947#define fb_writew __raw_writew
948#define fb_writel __raw_writel
949#define fb_writeq __raw_writeq
950#define fb_memset memset_io
951#define fb_memcpy_fromfb memcpy_fromio
952#define fb_memcpy_tofb memcpy_toio
953
954#else
955
956#define fb_readb(addr) (*(volatile u8 *) (addr))
957#define fb_readw(addr) (*(volatile u16 *) (addr))
958#define fb_readl(addr) (*(volatile u32 *) (addr))
959#define fb_readq(addr) (*(volatile u64 *) (addr))
960#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
961#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
962#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
963#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
964#define fb_memset memset
965#define fb_memcpy_fromfb memcpy
966#define fb_memcpy_tofb memcpy
967
968#endif
969
970#define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
971#define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
972 (val) << (bits))
973#define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
974 (val) >> (bits))
975
976 /*
977 * `Generic' versions of the frame buffer device operations
978 */
979
980extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
981extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
982extern int fb_blank(struct fb_info *info, int blank);
983extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
984extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
985extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
986/*
987 * Drawing operations where framebuffer is in system RAM
988 */
989extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
990extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
991extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
992extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
993 size_t count, loff_t *ppos);
994extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
995 size_t count, loff_t *ppos);
996
997/* drivers/video/fbmem.c */
998extern int register_framebuffer(struct fb_info *fb_info);
999extern int unregister_framebuffer(struct fb_info *fb_info);
1000extern void remove_conflicting_framebuffers(struct apertures_struct *a,
1001 const char *name, bool primary);
1002extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
1003extern int fb_show_logo(struct fb_info *fb_info, int rotate);
1004extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
1005extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1006 u32 height, u32 shift_high, u32 shift_low, u32 mod);
1007extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1008extern void fb_set_suspend(struct fb_info *info, int state);
1009extern int fb_get_color_depth(struct fb_var_screeninfo *var,
1010 struct fb_fix_screeninfo *fix);
1011extern int fb_get_options(char *name, char **option);
1012extern int fb_new_modelist(struct fb_info *info);
1013
1014extern struct fb_info *registered_fb[FB_MAX];
1015extern int num_registered_fb;
1016extern struct class *fb_class;
1017
1018extern int lock_fb_info(struct fb_info *info);
1019
1020static inline void unlock_fb_info(struct fb_info *info)
1021{
1022 mutex_unlock(&info->lock);
1023}
1024
1025static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
1026 u8 *src, u32 s_pitch, u32 height)
1027{
1028 int i, j;
1029
1030 d_pitch -= s_pitch;
1031
1032 for (i = height; i--; ) {
1033 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
1034 for (j = 0; j < s_pitch; j++)
1035 *dst++ = *src++;
1036 dst += d_pitch;
1037 }
1038}
1039
1040/* drivers/video/fb_defio.c */
1041extern void fb_deferred_io_init(struct fb_info *info);
1042extern void fb_deferred_io_open(struct fb_info *info,
1043 struct inode *inode,
1044 struct file *file);
1045extern void fb_deferred_io_cleanup(struct fb_info *info);
1046extern int fb_deferred_io_fsync(struct file *file, loff_t start,
1047 loff_t end, int datasync);
1048
1049static inline bool fb_be_math(struct fb_info *info)
1050{
1051#ifdef CONFIG_FB_FOREIGN_ENDIAN
1052#if defined(CONFIG_FB_BOTH_ENDIAN)
1053 return info->flags & FBINFO_BE_MATH;
1054#elif defined(CONFIG_FB_BIG_ENDIAN)
1055 return true;
1056#elif defined(CONFIG_FB_LITTLE_ENDIAN)
1057 return false;
1058#endif /* CONFIG_FB_BOTH_ENDIAN */
1059#else
1060#ifdef __BIG_ENDIAN
1061 return true;
1062#else
1063 return false;
1064#endif /* __BIG_ENDIAN */
1065#endif /* CONFIG_FB_FOREIGN_ENDIAN */
1066}
1067
1068/* drivers/video/fbsysfs.c */
1069extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1070extern void framebuffer_release(struct fb_info *info);
1071extern int fb_init_device(struct fb_info *fb_info);
1072extern void fb_cleanup_device(struct fb_info *head);
1073extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1074
1075/* drivers/video/fbmon.c */
1076#define FB_MAXTIMINGS 0
1077#define FB_VSYNCTIMINGS 1
1078#define FB_HSYNCTIMINGS 2
1079#define FB_DCLKTIMINGS 3
1080#define FB_IGNOREMON 0x100
1081
1082#define FB_MODE_IS_UNKNOWN 0
1083#define FB_MODE_IS_DETAILED 1
1084#define FB_MODE_IS_STANDARD 2
1085#define FB_MODE_IS_VESA 4
1086#define FB_MODE_IS_CALCULATED 8
1087#define FB_MODE_IS_FIRST 16
1088#define FB_MODE_IS_FROM_VAR 32
1089
1090extern int fbmon_dpms(const struct fb_info *fb_info);
1091extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1092 struct fb_info *info);
1093extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1094 struct fb_info *info);
1095extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1096extern const unsigned char *fb_firmware_edid(struct device *device);
1097extern void fb_edid_to_monspecs(unsigned char *edid,
1098 struct fb_monspecs *specs);
1099extern void fb_edid_add_monspecs(unsigned char *edid,
1100 struct fb_monspecs *specs);
1101extern void fb_destroy_modedb(struct fb_videomode *modedb);
1102extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1103extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1104
1105/* drivers/video/modedb.c */
1106#define VESA_MODEDB_SIZE 34
1107extern void fb_var_to_videomode(struct fb_videomode *mode,
1108 const struct fb_var_screeninfo *var);
1109extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1110 const struct fb_videomode *mode);
1111extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1112 const struct fb_videomode *mode2);
1113extern int fb_add_videomode(const struct fb_videomode *mode,
1114 struct list_head *head);
1115extern void fb_delete_videomode(const struct fb_videomode *mode,
1116 struct list_head *head);
1117extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1118 struct list_head *head);
1119extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1120 struct list_head *head);
1121extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1122 struct list_head *head);
1123extern void fb_destroy_modelist(struct list_head *head);
1124extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1125 struct list_head *head);
1126extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1127 struct list_head *head);
1128
1129/* drivers/video/fbcmap.c */
1130extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1131extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags);
1132extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1133extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1134extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1135extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1136extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1137extern const struct fb_cmap *fb_default_cmap(int len);
1138extern void fb_invert_cmaps(void);
1139
1140struct fb_videomode {
1141 const char *name; /* optional */
1142 u32 refresh; /* optional */
1143 u32 xres;
1144 u32 yres;
1145 u32 pixclock;
1146 u32 left_margin;
1147 u32 right_margin;
1148 u32 upper_margin;
1149 u32 lower_margin;
1150 u32 hsync_len;
1151 u32 vsync_len;
1152 u32 sync;
1153 u32 vmode;
1154 u32 flag;
1155};
1156
1157extern const char *fb_mode_option;
1158extern const struct fb_videomode vesa_modes[];
1159extern const struct fb_videomode cea_modes[64];
1160
1161struct fb_modelist {
1162 struct list_head list;
1163 struct fb_videomode mode;
1164};
1165
1166extern int fb_find_mode(struct fb_var_screeninfo *var,
1167 struct fb_info *info, const char *mode_option,
1168 const struct fb_videomode *db,
1169 unsigned int dbsize,
1170 const struct fb_videomode *default_mode,
1171 unsigned int default_bpp);
1172
1173#endif /* __KERNEL__ */
1174
1175#endif /* _LINUX_FB_H */