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[PATCH] fbcon: Avoid illegal display panning
[linux.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 */
544393fe
TW		 110#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
111#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
1da177e4
LT		 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
e4fc2761
AD		 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
1da177e4
LT		 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 __KERNEL__
370
371#include <linux/fs.h>
372#include <linux/init.h>
373#include <linux/tty.h>
374#include <linux/device.h>
375#include <linux/workqueue.h>
376#include <linux/devfs_fs_kernel.h>
377#include <linux/notifier.h>
378#include <linux/list.h>
379#include <asm/io.h>
380
381struct vm_area_struct;
382struct fb_info;
383struct device;
384struct file;
385
386/* Definitions below are used in the parsed monitor specs */
387#define FB_DPMS_ACTIVE_OFF 1
388#define FB_DPMS_SUSPEND 2
389#define FB_DPMS_STANDBY 4
390
391#define FB_DISP_DDI 1
392#define FB_DISP_ANA_700_300 2
393#define FB_DISP_ANA_714_286 4
394#define FB_DISP_ANA_1000_400 8
395#define FB_DISP_ANA_700_000 16
396
397#define FB_DISP_MONO 32
398#define FB_DISP_RGB 64
399#define FB_DISP_MULTI 128
400#define FB_DISP_UNKNOWN 256
401
402#define FB_SIGNAL_NONE 0
403#define FB_SIGNAL_BLANK_BLANK 1
404#define FB_SIGNAL_SEPARATE 2
405#define FB_SIGNAL_COMPOSITE 4
406#define FB_SIGNAL_SYNC_ON_GREEN 8
407#define FB_SIGNAL_SERRATION_ON 16
408
409#define FB_MISC_PRIM_COLOR 1
410#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
411struct fb_chroma {
412 __u32 redx; /* in fraction of 1024 */
413 __u32 greenx;
414 __u32 bluex;
415 __u32 whitex;
416 __u32 redy;
417 __u32 greeny;
418 __u32 bluey;
419 __u32 whitey;
420};
421
422struct fb_monspecs {
423 struct fb_chroma chroma;
424 struct fb_videomode *modedb; /* mode database */
425 __u8 manufacturer[4]; /* Manufacturer */
426 __u8 monitor[14]; /* Monitor String */
427 __u8 serial_no[14]; /* Serial Number */
428 __u8 ascii[14]; /* ? */
429 __u32 modedb_len; /* mode database length */
430 __u32 model; /* Monitor Model */
431 __u32 serial; /* Serial Number - Integer */
432 __u32 year; /* Year manufactured */
433 __u32 week; /* Week Manufactured */
434 __u32 hfmin; /* hfreq lower limit (Hz) */
435 __u32 hfmax; /* hfreq upper limit (Hz) */
436 __u32 dclkmin; /* pixelclock lower limit (Hz) */
437 __u32 dclkmax; /* pixelclock upper limit (Hz) */
438 __u16 input; /* display type - see FB_DISP_* */
439 __u16 dpms; /* DPMS support - see FB_DPMS_ */
440 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
441 __u16 vfmin; /* vfreq lower limit (Hz) */
442 __u16 vfmax; /* vfreq upper limit (Hz) */
443 __u16 gamma; /* Gamma - in fractions of 100 */
444 __u16 gtf : 1; /* supports GTF */
445 __u16 misc; /* Misc flags - see FB_MISC_* */
446 __u8 version; /* EDID version... */
447 __u8 revision; /* ...and revision */
448 __u8 max_x; /* Maximum horizontal size (cm) */
449 __u8 max_y; /* Maximum vertical size (cm) */
450};
451
452struct fb_cmap_user {
453 __u32 start; /* First entry */
454 __u32 len; /* Number of entries */
455 __u16 __user *red; /* Red values */
456 __u16 __user *green;
457 __u16 __user *blue;
458 __u16 __user *transp; /* transparency, can be NULL */
459};
460
461struct fb_image_user {
462 __u32 dx; /* Where to place image */
463 __u32 dy;
464 __u32 width; /* Size of image */
465 __u32 height;
466 __u32 fg_color; /* Only used when a mono bitmap */
467 __u32 bg_color;
468 __u8 depth; /* Depth of the image */
469 const char __user *data; /* Pointer to image data */
470 struct fb_cmap_user cmap; /* color map info */
471};
472
473struct fb_cursor_user {
474 __u16 set; /* what to set */
475 __u16 enable; /* cursor on/off */
476 __u16 rop; /* bitop operation */
477 const char __user *mask; /* cursor mask bits */
478 struct fbcurpos hot; /* cursor hot spot */
479 struct fb_image_user image; /* Cursor image */
480};
481
482/*
483 * Register/unregister for framebuffer events
484 */
485
486/* The resolution of the passed in fb_info about to change */
487#define FB_EVENT_MODE_CHANGE 0x01
488/* The display on this fb_info is beeing suspended, no access to the
489 * framebuffer is allowed any more after that call returns
490 */
491#define FB_EVENT_SUSPEND 0x02
492/* The display on this fb_info was resumed, you can restore the display
493 * if you own it
494 */
495#define FB_EVENT_RESUME 0x03
496/* An entry from the modelist was removed */
497#define FB_EVENT_MODE_DELETE 0x04
498/* A driver registered itself */
499#define FB_EVENT_FB_REGISTERED 0x05
e4fc2761 500/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
1da177e4 501#define FB_EVENT_GET_CONSOLE_MAP 0x06
e4fc2761 502/* CONSOLE-SPECIFIC: set console to framebuffer mapping */
1da177e4
LT		 503#define FB_EVENT_SET_CONSOLE_MAP 0x07
504/* A display blank is requested */
505#define FB_EVENT_BLANK 0x08
506/* Private modelist is to be replaced */
507#define FB_EVENT_NEW_MODELIST 0x09
7726e9e1
AD		 508/* The resolution of the passed in fb_info about to change and
509 all vc's should be changed */
510#define FB_EVENT_MODE_CHANGE_ALL 0x0A
a812c94b
AD		 511/* CONSOLE-SPECIFIC: set console rotation */
512#define FB_EVENT_SET_CON_ROTATE 0x0B
513/* CONSOLE-SPECIFIC: get console rotation */
514#define FB_EVENT_GET_CON_ROTATE 0x0C
515/* CONSOLE-SPECIFIC: rotate all consoles */
516#define FB_EVENT_SET_CON_ROTATE_ALL 0x0D
1da177e4
LT		 517
518struct fb_event {
519 struct fb_info *info;
520 void *data;
521};
522
523
524extern int fb_register_client(struct notifier_block *nb);
525extern int fb_unregister_client(struct notifier_block *nb);
526
527/*
528 * Pixmap structure definition
529 *
530 * The purpose of this structure is to translate data
531 * from the hardware independent format of fbdev to what
532 * format the hardware needs.
533 */
534
535#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
536#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
537#define FB_PIXMAP_IO 4 /* memory is iomapped */
538#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
539
540struct fb_pixmap {
541 u8 *addr; /* pointer to memory */
542 u32 size; /* size of buffer in bytes */
543 u32 offset; /* current offset to buffer */
544 u32 buf_align; /* byte alignment of each bitmap */
545 u32 scan_align; /* alignment per scanline */
f5a9951c 546 u32 access_align; /* alignment per read/write (bits) */
1da177e4
LT		 547 u32 flags; /* see FB_PIXMAP_* */
548 /* access methods */
f5a9951c
JS		 549 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
550 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
1da177e4
LT		 551};
552
553
554/*
555 * Frame buffer operations
556 *
557 * LOCKING NOTE: those functions must _ALL_ be called with the console
558 * semaphore held, this is the only suitable locking mecanism we have
559 * in 2.6. Some may be called at interrupt time at this point though.
560 */
561
562struct fb_ops {
563 /* open/release and usage marking */
564 struct module *owner;
565 int (*fb_open)(struct fb_info *info, int user);
566 int (*fb_release)(struct fb_info *info, int user);
567
568 /* For framebuffers with strange non linear layouts or that do not
569 * work with normal memory mapped access
570 */
571 ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos);
572 ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
573
574 /* checks var and eventually tweaks it to something supported,
575 * DO NOT MODIFY PAR */
576 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
577
578 /* set the video mode according to info->var */
579 int (*fb_set_par)(struct fb_info *info);
580
581 /* set color register */
582 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
583 unsigned blue, unsigned transp, struct fb_info *info);
584
71494376
BH		 585 /* set color registers in batch */
586 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
587
1da177e4
LT		 588 /* blank display */
589 int (*fb_blank)(int blank, struct fb_info *info);
590
591 /* pan display */
592 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
593
594 /* Draws a rectangle */
595 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
596 /* Copy data from area to another */
597 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
598 /* Draws a image to the display */
599 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
600
601 /* Draws cursor */
602 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
603
604 /* Rotates the display */
605 void (*fb_rotate)(struct fb_info *info, int angle);
606
607 /* wait for blit idle, optional */
608 int (*fb_sync)(struct fb_info *info);
609
610 /* perform fb specific ioctl (optional) */
611 int (*fb_ioctl)(struct inode *inode, struct file *file, unsigned int cmd,
612 unsigned long arg, struct fb_info *info);
613
614 /* Handle 32bit compat ioctl (optional) */
615 long (*fb_compat_ioctl)(struct file *f, unsigned cmd, unsigned long arg,
616 struct fb_info *info);
617
618 /* perform fb specific mmap */
619 int (*fb_mmap)(struct fb_info *info, struct file *file, struct vm_area_struct *vma);
47434847
AD		 620
621 /* save current hardware state */
622 void (*fb_save_state)(struct fb_info *info);
623
624 /* restore saved state */
625 void (*fb_restore_state)(struct fb_info *info);
1da177e4
LT		 626};
627
628#ifdef CONFIG_FB_TILEBLITTING
629
630#define FB_TILE_CURSOR_NONE 0
631#define FB_TILE_CURSOR_UNDERLINE 1
632#define FB_TILE_CURSOR_LOWER_THIRD 2
633#define FB_TILE_CURSOR_LOWER_HALF 3
634#define FB_TILE_CURSOR_TWO_THIRDS 4
635#define FB_TILE_CURSOR_BLOCK 5
636
637struct fb_tilemap {
638 __u32 width; /* width of each tile in pixels */
639 __u32 height; /* height of each tile in scanlines */
640 __u32 depth; /* color depth of each tile */
641 __u32 length; /* number of tiles in the map */
2f4516db 642 const __u8 *data; /* actual tile map: a bitmap array, packed
1da177e4
LT		 643 to the nearest byte */
644};
645
646struct fb_tilerect {
647 __u32 sx; /* origin in the x-axis */
648 __u32 sy; /* origin in the y-axis */
649 __u32 width; /* number of tiles in the x-axis */
650 __u32 height; /* number of tiles in the y-axis */
651 __u32 index; /* what tile to use: index to tile map */
652 __u32 fg; /* foreground color */
653 __u32 bg; /* background color */
654 __u32 rop; /* raster operation */
655};
656
657struct fb_tilearea {
658 __u32 sx; /* source origin in the x-axis */
659 __u32 sy; /* source origin in the y-axis */
660 __u32 dx; /* destination origin in the x-axis */
661 __u32 dy; /* destination origin in the y-axis */
662 __u32 width; /* number of tiles in the x-axis */
663 __u32 height; /* number of tiles in the y-axis */
664};
665
666struct fb_tileblit {
667 __u32 sx; /* origin in the x-axis */
668 __u32 sy; /* origin in the y-axis */
669 __u32 width; /* number of tiles in the x-axis */
670 __u32 height; /* number of tiles in the y-axis */
671 __u32 fg; /* foreground color */
672 __u32 bg; /* background color */
673 __u32 length; /* number of tiles to draw */
674 __u32 *indices; /* array of indices to tile map */
675};
676
677struct fb_tilecursor {
678 __u32 sx; /* cursor position in the x-axis */
679 __u32 sy; /* cursor position in the y-axis */
680 __u32 mode; /* 0 = erase, 1 = draw */
681 __u32 shape; /* see FB_TILE_CURSOR_* */
682 __u32 fg; /* foreground color */
683 __u32 bg; /* background color */
684};
685
686struct fb_tile_ops {
687 /* set tile characteristics */
688 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
689
690 /* all dimensions from hereon are in terms of tiles */
691
692 /* move a rectangular region of tiles from one area to another*/
693 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
694 /* fill a rectangular region with a tile */
695 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
696 /* copy an array of tiles */
697 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
698 /* cursor */
699 void (*fb_tilecursor)(struct fb_info *info,
700 struct fb_tilecursor *cursor);
701};
702#endif /* CONFIG_FB_TILEBLITTING */
703
704/* FBINFO_* = fb_info.flags bit flags */
705#define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
706#define FBINFO_HWACCEL_DISABLED 0x0002
707 /* When FBINFO_HWACCEL_DISABLED is set:
708 * Hardware acceleration is turned off. Software implementations
709 * of required functions (copyarea(), fillrect(), and imageblit())
710 * takes over; acceleration engine should be in a quiescent state */
711
712/* hints */
713#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
714#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
715
716/* hardware supported ops */
717/* semantics: when a bit is set, it indicates that the operation is
718 * accelerated by hardware.
719 * required functions will still work even if the bit is not set.
720 * optional functions may not even exist if the flag bit is not set.
721 */
722#define FBINFO_HWACCEL_NONE 0x0000
723#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
724#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
725#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
726#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
727#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
728#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
729#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
730
731#define FBINFO_MISC_USEREVENT 0x10000 /* event request
732 from userspace */
733#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
734
735struct fb_info {
736 int node;
737 int flags;
738 struct fb_var_screeninfo var; /* Current var */
739 struct fb_fix_screeninfo fix; /* Current fix */
740 struct fb_monspecs monspecs; /* Current Monitor specs */
741 struct work_struct queue; /* Framebuffer event queue */
742 struct fb_pixmap pixmap; /* Image hardware mapper */
743 struct fb_pixmap sprite; /* Cursor hardware mapper */
744 struct fb_cmap cmap; /* Current cmap */
745 struct list_head modelist; /* mode list */
746 struct fb_videomode *mode; /* current mode */
747 struct fb_ops *fbops;
748 struct device *device;
749 struct class_device *class_device; /* sysfs per device attrs */
750#ifdef CONFIG_FB_TILEBLITTING
751 struct fb_tile_ops *tileops; /* Tile Blitting */
752#endif
753 char __iomem *screen_base; /* Virtual address */
754 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
755 void *pseudo_palette; /* Fake palette of 16 colors */
756#define FBINFO_STATE_RUNNING 0
757#define FBINFO_STATE_SUSPENDED 1
758 u32 state; /* Hardware state i.e suspend */
759 void *fbcon_par; /* fbcon use-only private area */
760 /* From here on everything is device dependent */
761 void *par;
762};
763
764#ifdef MODULE
765#define FBINFO_DEFAULT FBINFO_MODULE
766#else
767#define FBINFO_DEFAULT 0
768#endif
769
770// This will go away
771#define FBINFO_FLAG_MODULE FBINFO_MODULE
772#define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
773
774/* This will go away
775 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
776 * when it wants to turn the acceleration engine on. This is
777 * really a separate operation, and should be modified via sysfs.
778 * But for now, we leave it broken with the following define
779 */
780#define STUPID_ACCELF_TEXT_SHIT
781
782// This will go away
783#if defined(__sparc__)
784
785/* We map all of our framebuffers such that big-endian accesses
786 * are what we want, so the following is sufficient.
787 */
788
789// This will go away
790#define fb_readb sbus_readb
791#define fb_readw sbus_readw
792#define fb_readl sbus_readl
793#define fb_readq sbus_readq
794#define fb_writeb sbus_writeb
795#define fb_writew sbus_writew
796#define fb_writel sbus_writel
797#define fb_writeq sbus_writeq
798#define fb_memset sbus_memset_io
799
800#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__)
801
802#define fb_readb __raw_readb
803#define fb_readw __raw_readw
804#define fb_readl __raw_readl
805#define fb_readq __raw_readq
806#define fb_writeb __raw_writeb
807#define fb_writew __raw_writew
808#define fb_writel __raw_writel
809#define fb_writeq __raw_writeq
810#define fb_memset memset_io
811
812#else
813
814#define fb_readb(addr) (*(volatile u8 *) (addr))
815#define fb_readw(addr) (*(volatile u16 *) (addr))
816#define fb_readl(addr) (*(volatile u32 *) (addr))
817#define fb_readq(addr) (*(volatile u64 *) (addr))
818#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
819#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
820#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
821#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
822#define fb_memset memset
823
824#endif
825
826 /*
827 * `Generic' versions of the frame buffer device operations
828 */
829
830extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
831extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
832extern int fb_blank(struct fb_info *info, int blank);
1da177e4
LT		 833extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
834extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
835extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
836
837/* drivers/video/fbmem.c */
838extern int register_framebuffer(struct fb_info *fb_info);
839extern int unregister_framebuffer(struct fb_info *fb_info);
9c44e5f6
AD		 840extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
841extern int fb_show_logo(struct fb_info *fb_info, int rotate);
1da177e4 842extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
f1ab5dac 843extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1da177e4 844 u32 height, u32 shift_high, u32 shift_low, u32 mod);
f1ab5dac 845extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1da177e4 846extern void fb_set_suspend(struct fb_info *info, int state);
b8c90945
AD		 847extern int fb_get_color_depth(struct fb_var_screeninfo *var,
848 struct fb_fix_screeninfo *fix);
1da177e4
LT		 849extern int fb_get_options(char *name, char **option);
850extern int fb_new_modelist(struct fb_info *info);
a812c94b 851extern int fb_con_duit(struct fb_info *info, int event, void *data);
1da177e4
LT		 852
853extern struct fb_info *registered_fb[FB_MAX];
854extern int num_registered_fb;
855
829e79b6
AD		 856static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
857 u8 *src, u32 s_pitch, u32 height)
858{
859 int i, j;
860
861 d_pitch -= s_pitch;
862
863 for (i = height; i--; ) {
864 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
865 for (j = 0; j < s_pitch; j++)
866 *dst++ = *src++;
867 dst += d_pitch;
868 }
869}
870
1da177e4
LT		 871/* drivers/video/fbsysfs.c */
872extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
873extern void framebuffer_release(struct fb_info *info);
874extern int fb_init_class_device(struct fb_info *fb_info);
875extern void fb_cleanup_class_device(struct fb_info *head);
876
877/* drivers/video/fbmon.c */
878#define FB_MAXTIMINGS 0
879#define FB_VSYNCTIMINGS 1
880#define FB_HSYNCTIMINGS 2
881#define FB_DCLKTIMINGS 3
882#define FB_IGNOREMON 0x100
883
884#define FB_MODE_IS_UNKNOWN 0
885#define FB_MODE_IS_DETAILED 1
886#define FB_MODE_IS_STANDARD 2
887#define FB_MODE_IS_VESA 4
888#define FB_MODE_IS_CALCULATED 8
889#define FB_MODE_IS_FIRST 16
890#define FB_MODE_IS_FROM_VAR 32
891
892extern int fbmon_valid_timings(u_int pixclock, u_int htotal, u_int vtotal,
893 const struct fb_info *fb_info);
894extern int fbmon_dpms(const struct fb_info *fb_info);
895extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
896 struct fb_info *info);
897extern int fb_validate_mode(const struct fb_var_screeninfo *var,
898 struct fb_info *info);
899extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
5e518d76
AD		 900extern const unsigned char *fb_firmware_edid(struct device *device);
901extern void fb_edid_to_monspecs(unsigned char *edid,
902 struct fb_monspecs *specs);
1da177e4 903extern void fb_destroy_modedb(struct fb_videomode *modedb);
96fe6a21 904extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1da177e4
LT		 905
906/* drivers/video/modedb.c */
907#define VESA_MODEDB_SIZE 34
908extern void fb_var_to_videomode(struct fb_videomode *mode,
909 struct fb_var_screeninfo *var);
910extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
911 struct fb_videomode *mode);
912extern int fb_mode_is_equal(struct fb_videomode *mode1,
913 struct fb_videomode *mode2);
914extern int fb_add_videomode(struct fb_videomode *mode, struct list_head *head);
915extern void fb_delete_videomode(struct fb_videomode *mode,
916 struct list_head *head);
917extern struct fb_videomode *fb_match_mode(struct fb_var_screeninfo *var,
918 struct list_head *head);
919extern struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var,
920 struct list_head *head);
8fb6567e 921extern struct fb_videomode *fb_find_nearest_mode(struct fb_videomode *mode,
1da177e4
LT		 922 struct list_head *head);
923extern void fb_destroy_modelist(struct list_head *head);
924extern void fb_videomode_to_modelist(struct fb_videomode *modedb, int num,
925 struct list_head *head);
003cfc0c
AD		 926extern struct fb_videomode *fb_find_best_display(struct fb_monspecs *specs,
927 struct list_head *head);
1da177e4
LT		 928
929/* drivers/video/fbcmap.c */
930extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
931extern void fb_dealloc_cmap(struct fb_cmap *cmap);
932extern int fb_copy_cmap(struct fb_cmap *from, struct fb_cmap *to);
933extern int fb_cmap_to_user(struct fb_cmap *from, struct fb_cmap_user *to);
934extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
935extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
936extern struct fb_cmap *fb_default_cmap(int len);
937extern void fb_invert_cmaps(void);
938
939struct fb_videomode {
940 const char *name; /* optional */
941 u32 refresh; /* optional */
942 u32 xres;
943 u32 yres;
944 u32 pixclock;
945 u32 left_margin;
946 u32 right_margin;
947 u32 upper_margin;
948 u32 lower_margin;
949 u32 hsync_len;
950 u32 vsync_len;
951 u32 sync;
952 u32 vmode;
953 u32 flag;
954};
955
956extern const struct fb_videomode vesa_modes[];
957
958struct fb_modelist {
959 struct list_head list;
960 struct fb_videomode mode;
961};
962
963extern int fb_find_mode(struct fb_var_screeninfo *var,
964 struct fb_info *info, const char *mode_option,
965 const struct fb_videomode *db,
966 unsigned int dbsize,
967 const struct fb_videomode *default_mode,
968 unsigned int default_bpp);
969
970#endif /* __KERNEL__ */
971
972#endif /* _LINUX_FB_H */
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