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1da177e4 LT |
1 | #ifndef _LINUX_FB_H |
2 | #define _LINUX_FB_H | |
3 | ||
d219adc1 | 4 | #include <linux/kgdb.h> |
607ca46e | 5 | #include <uapi/linux/fb.h> |
1da177e4 | 6 | |
1da177e4 | 7 | #define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user) |
1da177e4 LT |
8 | |
9 | #include <linux/fs.h> | |
10 | #include <linux/init.h> | |
1da177e4 | 11 | #include <linux/workqueue.h> |
1da177e4 LT |
12 | #include <linux/notifier.h> |
13 | #include <linux/list.h> | |
2b257425 | 14 | #include <linux/backlight.h> |
1471ca9a | 15 | #include <linux/slab.h> |
1da177e4 LT |
16 | #include <asm/io.h> |
17 | ||
18 | struct vm_area_struct; | |
19 | struct fb_info; | |
20 | struct device; | |
21 | struct file; | |
2db54c72 | 22 | struct videomode; |
1da177e4 LT |
23 | |
24 | /* Definitions below are used in the parsed monitor specs */ | |
25 | #define FB_DPMS_ACTIVE_OFF 1 | |
26 | #define FB_DPMS_SUSPEND 2 | |
27 | #define FB_DPMS_STANDBY 4 | |
28 | ||
29 | #define FB_DISP_DDI 1 | |
30 | #define FB_DISP_ANA_700_300 2 | |
31 | #define FB_DISP_ANA_714_286 4 | |
32 | #define FB_DISP_ANA_1000_400 8 | |
33 | #define FB_DISP_ANA_700_000 16 | |
34 | ||
35 | #define FB_DISP_MONO 32 | |
36 | #define FB_DISP_RGB 64 | |
37 | #define FB_DISP_MULTI 128 | |
38 | #define FB_DISP_UNKNOWN 256 | |
39 | ||
40 | #define FB_SIGNAL_NONE 0 | |
41 | #define FB_SIGNAL_BLANK_BLANK 1 | |
42 | #define FB_SIGNAL_SEPARATE 2 | |
43 | #define FB_SIGNAL_COMPOSITE 4 | |
44 | #define FB_SIGNAL_SYNC_ON_GREEN 8 | |
45 | #define FB_SIGNAL_SERRATION_ON 16 | |
46 | ||
47 | #define FB_MISC_PRIM_COLOR 1 | |
48 | #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */ | |
49 | struct fb_chroma { | |
50 | __u32 redx; /* in fraction of 1024 */ | |
51 | __u32 greenx; | |
52 | __u32 bluex; | |
53 | __u32 whitex; | |
54 | __u32 redy; | |
55 | __u32 greeny; | |
56 | __u32 bluey; | |
57 | __u32 whitey; | |
58 | }; | |
59 | ||
60 | struct fb_monspecs { | |
61 | struct fb_chroma chroma; | |
62 | struct fb_videomode *modedb; /* mode database */ | |
63 | __u8 manufacturer[4]; /* Manufacturer */ | |
64 | __u8 monitor[14]; /* Monitor String */ | |
65 | __u8 serial_no[14]; /* Serial Number */ | |
66 | __u8 ascii[14]; /* ? */ | |
67 | __u32 modedb_len; /* mode database length */ | |
68 | __u32 model; /* Monitor Model */ | |
69 | __u32 serial; /* Serial Number - Integer */ | |
70 | __u32 year; /* Year manufactured */ | |
71 | __u32 week; /* Week Manufactured */ | |
72 | __u32 hfmin; /* hfreq lower limit (Hz) */ | |
73 | __u32 hfmax; /* hfreq upper limit (Hz) */ | |
74 | __u32 dclkmin; /* pixelclock lower limit (Hz) */ | |
75 | __u32 dclkmax; /* pixelclock upper limit (Hz) */ | |
76 | __u16 input; /* display type - see FB_DISP_* */ | |
77 | __u16 dpms; /* DPMS support - see FB_DPMS_ */ | |
78 | __u16 signal; /* Signal Type - see FB_SIGNAL_* */ | |
79 | __u16 vfmin; /* vfreq lower limit (Hz) */ | |
80 | __u16 vfmax; /* vfreq upper limit (Hz) */ | |
81 | __u16 gamma; /* Gamma - in fractions of 100 */ | |
82 | __u16 gtf : 1; /* supports GTF */ | |
83 | __u16 misc; /* Misc flags - see FB_MISC_* */ | |
84 | __u8 version; /* EDID version... */ | |
85 | __u8 revision; /* ...and revision */ | |
86 | __u8 max_x; /* Maximum horizontal size (cm) */ | |
87 | __u8 max_y; /* Maximum vertical size (cm) */ | |
88 | }; | |
89 | ||
90 | struct fb_cmap_user { | |
91 | __u32 start; /* First entry */ | |
92 | __u32 len; /* Number of entries */ | |
93 | __u16 __user *red; /* Red values */ | |
94 | __u16 __user *green; | |
95 | __u16 __user *blue; | |
96 | __u16 __user *transp; /* transparency, can be NULL */ | |
97 | }; | |
98 | ||
99 | struct fb_image_user { | |
100 | __u32 dx; /* Where to place image */ | |
101 | __u32 dy; | |
102 | __u32 width; /* Size of image */ | |
103 | __u32 height; | |
104 | __u32 fg_color; /* Only used when a mono bitmap */ | |
105 | __u32 bg_color; | |
106 | __u8 depth; /* Depth of the image */ | |
107 | const char __user *data; /* Pointer to image data */ | |
108 | struct fb_cmap_user cmap; /* color map info */ | |
109 | }; | |
110 | ||
111 | struct fb_cursor_user { | |
112 | __u16 set; /* what to set */ | |
113 | __u16 enable; /* cursor on/off */ | |
114 | __u16 rop; /* bitop operation */ | |
115 | const char __user *mask; /* cursor mask bits */ | |
116 | struct fbcurpos hot; /* cursor hot spot */ | |
117 | struct fb_image_user image; /* Cursor image */ | |
118 | }; | |
119 | ||
120 | /* | |
121 | * Register/unregister for framebuffer events | |
122 | */ | |
123 | ||
124 | /* The resolution of the passed in fb_info about to change */ | |
125 | #define FB_EVENT_MODE_CHANGE 0x01 | |
126 | /* The display on this fb_info is beeing suspended, no access to the | |
127 | * framebuffer is allowed any more after that call returns | |
128 | */ | |
129 | #define FB_EVENT_SUSPEND 0x02 | |
130 | /* The display on this fb_info was resumed, you can restore the display | |
131 | * if you own it | |
132 | */ | |
133 | #define FB_EVENT_RESUME 0x03 | |
134 | /* An entry from the modelist was removed */ | |
135 | #define FB_EVENT_MODE_DELETE 0x04 | |
136 | /* A driver registered itself */ | |
137 | #define FB_EVENT_FB_REGISTERED 0x05 | |
e614b18d AD |
138 | /* A driver unregistered itself */ |
139 | #define FB_EVENT_FB_UNREGISTERED 0x06 | |
e4fc2761 | 140 | /* CONSOLE-SPECIFIC: get console to framebuffer mapping */ |
e614b18d | 141 | #define FB_EVENT_GET_CONSOLE_MAP 0x07 |
e4fc2761 | 142 | /* CONSOLE-SPECIFIC: set console to framebuffer mapping */ |
e614b18d | 143 | #define FB_EVENT_SET_CONSOLE_MAP 0x08 |
25985edc | 144 | /* A hardware display blank change occurred */ |
e614b18d | 145 | #define FB_EVENT_BLANK 0x09 |
1da177e4 | 146 | /* Private modelist is to be replaced */ |
e614b18d | 147 | #define FB_EVENT_NEW_MODELIST 0x0A |
7726e9e1 AD |
148 | /* The resolution of the passed in fb_info about to change and |
149 | all vc's should be changed */ | |
e614b18d | 150 | #define FB_EVENT_MODE_CHANGE_ALL 0x0B |
25985edc | 151 | /* A software display blank change occurred */ |
994efacd | 152 | #define FB_EVENT_CONBLANK 0x0C |
38a3dc51 AD |
153 | /* Get drawing requirements */ |
154 | #define FB_EVENT_GET_REQ 0x0D | |
cfafca80 JB |
155 | /* Unbind from the console if possible */ |
156 | #define FB_EVENT_FB_UNBIND 0x0E | |
6a9ee8af DA |
157 | /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */ |
158 | #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F | |
bf05929f ID |
159 | /* A hardware display blank early change occured */ |
160 | #define FB_EARLY_EVENT_BLANK 0x10 | |
161 | /* A hardware display blank revert early change occured */ | |
162 | #define FB_R_EARLY_EVENT_BLANK 0x11 | |
1da177e4 LT |
163 | |
164 | struct fb_event { | |
165 | struct fb_info *info; | |
166 | void *data; | |
167 | }; | |
168 | ||
38a3dc51 AD |
169 | struct fb_blit_caps { |
170 | u32 x; | |
171 | u32 y; | |
172 | u32 len; | |
173 | u32 flags; | |
174 | }; | |
1da177e4 LT |
175 | |
176 | extern int fb_register_client(struct notifier_block *nb); | |
177 | extern int fb_unregister_client(struct notifier_block *nb); | |
256154fb | 178 | extern int fb_notifier_call_chain(unsigned long val, void *v); |
1da177e4 LT |
179 | /* |
180 | * Pixmap structure definition | |
181 | * | |
182 | * The purpose of this structure is to translate data | |
183 | * from the hardware independent format of fbdev to what | |
184 | * format the hardware needs. | |
185 | */ | |
186 | ||
187 | #define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */ | |
188 | #define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */ | |
189 | #define FB_PIXMAP_IO 4 /* memory is iomapped */ | |
190 | #define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */ | |
191 | ||
192 | struct fb_pixmap { | |
193 | u8 *addr; /* pointer to memory */ | |
194 | u32 size; /* size of buffer in bytes */ | |
195 | u32 offset; /* current offset to buffer */ | |
196 | u32 buf_align; /* byte alignment of each bitmap */ | |
197 | u32 scan_align; /* alignment per scanline */ | |
f5a9951c | 198 | u32 access_align; /* alignment per read/write (bits) */ |
1da177e4 | 199 | u32 flags; /* see FB_PIXMAP_* */ |
bf26ad72 AD |
200 | u32 blit_x; /* supported bit block dimensions (1-32)*/ |
201 | u32 blit_y; /* Format: blit_x = 1 << (width - 1) */ | |
202 | /* blit_y = 1 << (height - 1) */ | |
203 | /* if 0, will be set to 0xffffffff (all)*/ | |
1da177e4 | 204 | /* access methods */ |
f5a9951c JS |
205 | void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size); |
206 | void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size); | |
1da177e4 LT |
207 | }; |
208 | ||
60b59bea JK |
209 | #ifdef CONFIG_FB_DEFERRED_IO |
210 | struct fb_deferred_io { | |
211 | /* delay between mkwrite and deferred handler */ | |
212 | unsigned long delay; | |
213 | struct mutex lock; /* mutex that protects the page list */ | |
214 | struct list_head pagelist; /* list of touched pages */ | |
215 | /* callback */ | |
1f45f9db | 216 | void (*first_io)(struct fb_info *info); |
60b59bea JK |
217 | void (*deferred_io)(struct fb_info *info, struct list_head *pagelist); |
218 | }; | |
219 | #endif | |
1da177e4 LT |
220 | |
221 | /* | |
222 | * Frame buffer operations | |
223 | * | |
224 | * LOCKING NOTE: those functions must _ALL_ be called with the console | |
b3c2ffd5 | 225 | * semaphore held, this is the only suitable locking mechanism we have |
1da177e4 | 226 | * in 2.6. Some may be called at interrupt time at this point though. |
d219adc1 JB |
227 | * |
228 | * The exception to this is the debug related hooks. Putting the fb | |
229 | * into a debug state (e.g. flipping to the kernel console) and restoring | |
230 | * it must be done in a lock-free manner, so low level drivers should | |
231 | * keep track of the initial console (if applicable) and may need to | |
232 | * perform direct, unlocked hardware writes in these hooks. | |
1da177e4 LT |
233 | */ |
234 | ||
235 | struct fb_ops { | |
236 | /* open/release and usage marking */ | |
237 | struct module *owner; | |
238 | int (*fb_open)(struct fb_info *info, int user); | |
239 | int (*fb_release)(struct fb_info *info, int user); | |
240 | ||
241 | /* For framebuffers with strange non linear layouts or that do not | |
242 | * work with normal memory mapped access | |
243 | */ | |
3f9b0880 AD |
244 | ssize_t (*fb_read)(struct fb_info *info, char __user *buf, |
245 | size_t count, loff_t *ppos); | |
246 | ssize_t (*fb_write)(struct fb_info *info, const char __user *buf, | |
247 | size_t count, loff_t *ppos); | |
1da177e4 LT |
248 | |
249 | /* checks var and eventually tweaks it to something supported, | |
250 | * DO NOT MODIFY PAR */ | |
251 | int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info); | |
252 | ||
253 | /* set the video mode according to info->var */ | |
254 | int (*fb_set_par)(struct fb_info *info); | |
255 | ||
256 | /* set color register */ | |
257 | int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green, | |
258 | unsigned blue, unsigned transp, struct fb_info *info); | |
259 | ||
71494376 BH |
260 | /* set color registers in batch */ |
261 | int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info); | |
262 | ||
1da177e4 LT |
263 | /* blank display */ |
264 | int (*fb_blank)(int blank, struct fb_info *info); | |
265 | ||
266 | /* pan display */ | |
267 | int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info); | |
268 | ||
269 | /* Draws a rectangle */ | |
270 | void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect); | |
271 | /* Copy data from area to another */ | |
272 | void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region); | |
273 | /* Draws a image to the display */ | |
274 | void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image); | |
275 | ||
276 | /* Draws cursor */ | |
277 | int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor); | |
278 | ||
279 | /* Rotates the display */ | |
280 | void (*fb_rotate)(struct fb_info *info, int angle); | |
281 | ||
282 | /* wait for blit idle, optional */ | |
283 | int (*fb_sync)(struct fb_info *info); | |
284 | ||
285 | /* perform fb specific ioctl (optional) */ | |
67a6680d CH |
286 | int (*fb_ioctl)(struct fb_info *info, unsigned int cmd, |
287 | unsigned long arg); | |
1da177e4 LT |
288 | |
289 | /* Handle 32bit compat ioctl (optional) */ | |
67a6680d CH |
290 | int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd, |
291 | unsigned long arg); | |
1da177e4 LT |
292 | |
293 | /* perform fb specific mmap */ | |
216d526c | 294 | int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma); |
47434847 | 295 | |
38a3dc51 AD |
296 | /* get capability given var */ |
297 | void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps, | |
298 | struct fb_var_screeninfo *var); | |
4410f391 DA |
299 | |
300 | /* teardown any resources to do with this framebuffer */ | |
301 | void (*fb_destroy)(struct fb_info *info); | |
d219adc1 JB |
302 | |
303 | /* called at KDB enter and leave time to prepare the console */ | |
304 | int (*fb_debug_enter)(struct fb_info *info); | |
305 | int (*fb_debug_leave)(struct fb_info *info); | |
1da177e4 LT |
306 | }; |
307 | ||
308 | #ifdef CONFIG_FB_TILEBLITTING | |
1da177e4 LT |
309 | #define FB_TILE_CURSOR_NONE 0 |
310 | #define FB_TILE_CURSOR_UNDERLINE 1 | |
311 | #define FB_TILE_CURSOR_LOWER_THIRD 2 | |
312 | #define FB_TILE_CURSOR_LOWER_HALF 3 | |
313 | #define FB_TILE_CURSOR_TWO_THIRDS 4 | |
314 | #define FB_TILE_CURSOR_BLOCK 5 | |
315 | ||
316 | struct fb_tilemap { | |
317 | __u32 width; /* width of each tile in pixels */ | |
318 | __u32 height; /* height of each tile in scanlines */ | |
319 | __u32 depth; /* color depth of each tile */ | |
320 | __u32 length; /* number of tiles in the map */ | |
2f4516db | 321 | const __u8 *data; /* actual tile map: a bitmap array, packed |
1da177e4 LT |
322 | to the nearest byte */ |
323 | }; | |
324 | ||
325 | struct fb_tilerect { | |
326 | __u32 sx; /* origin in the x-axis */ | |
327 | __u32 sy; /* origin in the y-axis */ | |
328 | __u32 width; /* number of tiles in the x-axis */ | |
329 | __u32 height; /* number of tiles in the y-axis */ | |
330 | __u32 index; /* what tile to use: index to tile map */ | |
331 | __u32 fg; /* foreground color */ | |
332 | __u32 bg; /* background color */ | |
333 | __u32 rop; /* raster operation */ | |
334 | }; | |
335 | ||
336 | struct fb_tilearea { | |
337 | __u32 sx; /* source origin in the x-axis */ | |
338 | __u32 sy; /* source origin in the y-axis */ | |
339 | __u32 dx; /* destination origin in the x-axis */ | |
340 | __u32 dy; /* destination origin in the y-axis */ | |
341 | __u32 width; /* number of tiles in the x-axis */ | |
342 | __u32 height; /* number of tiles in the y-axis */ | |
343 | }; | |
344 | ||
345 | struct fb_tileblit { | |
346 | __u32 sx; /* origin in the x-axis */ | |
347 | __u32 sy; /* origin in the y-axis */ | |
348 | __u32 width; /* number of tiles in the x-axis */ | |
349 | __u32 height; /* number of tiles in the y-axis */ | |
350 | __u32 fg; /* foreground color */ | |
351 | __u32 bg; /* background color */ | |
352 | __u32 length; /* number of tiles to draw */ | |
353 | __u32 *indices; /* array of indices to tile map */ | |
354 | }; | |
355 | ||
356 | struct fb_tilecursor { | |
357 | __u32 sx; /* cursor position in the x-axis */ | |
358 | __u32 sy; /* cursor position in the y-axis */ | |
359 | __u32 mode; /* 0 = erase, 1 = draw */ | |
360 | __u32 shape; /* see FB_TILE_CURSOR_* */ | |
361 | __u32 fg; /* foreground color */ | |
362 | __u32 bg; /* background color */ | |
363 | }; | |
364 | ||
365 | struct fb_tile_ops { | |
366 | /* set tile characteristics */ | |
367 | void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map); | |
368 | ||
369 | /* all dimensions from hereon are in terms of tiles */ | |
370 | ||
371 | /* move a rectangular region of tiles from one area to another*/ | |
372 | void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area); | |
373 | /* fill a rectangular region with a tile */ | |
374 | void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect); | |
375 | /* copy an array of tiles */ | |
376 | void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit); | |
377 | /* cursor */ | |
378 | void (*fb_tilecursor)(struct fb_info *info, | |
379 | struct fb_tilecursor *cursor); | |
11f11d52 AD |
380 | /* get maximum length of the tile map */ |
381 | int (*fb_get_tilemax)(struct fb_info *info); | |
1da177e4 LT |
382 | }; |
383 | #endif /* CONFIG_FB_TILEBLITTING */ | |
384 | ||
385 | /* FBINFO_* = fb_info.flags bit flags */ | |
386 | #define FBINFO_MODULE 0x0001 /* Low-level driver is a module */ | |
387 | #define FBINFO_HWACCEL_DISABLED 0x0002 | |
388 | /* When FBINFO_HWACCEL_DISABLED is set: | |
389 | * Hardware acceleration is turned off. Software implementations | |
390 | * of required functions (copyarea(), fillrect(), and imageblit()) | |
391 | * takes over; acceleration engine should be in a quiescent state */ | |
392 | ||
393 | /* hints */ | |
7164bb43 | 394 | #define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */ |
1da177e4 LT |
395 | #define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */ |
396 | #define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */ | |
397 | ||
398 | /* hardware supported ops */ | |
399 | /* semantics: when a bit is set, it indicates that the operation is | |
400 | * accelerated by hardware. | |
401 | * required functions will still work even if the bit is not set. | |
402 | * optional functions may not even exist if the flag bit is not set. | |
403 | */ | |
404 | #define FBINFO_HWACCEL_NONE 0x0000 | |
405 | #define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */ | |
406 | #define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */ | |
407 | #define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */ | |
408 | #define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */ | |
409 | #define FBINFO_HWACCEL_XPAN 0x1000 /* optional */ | |
410 | #define FBINFO_HWACCEL_YPAN 0x2000 /* optional */ | |
411 | #define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */ | |
412 | ||
413 | #define FBINFO_MISC_USEREVENT 0x10000 /* event request | |
414 | from userspace */ | |
415 | #define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */ | |
416 | ||
39942fd8 KP |
417 | /* A driver may set this flag to indicate that it does want a set_par to be |
418 | * called every time when fbcon_switch is executed. The advantage is that with | |
7f927fcc | 419 | * this flag set you can really be sure that set_par is always called before |
25985edc | 420 | * any of the functions dependent on the correct hardware state or altering |
39942fd8 KP |
421 | * that state, even if you are using some broken X releases. The disadvantage |
422 | * is that it introduces unwanted delays to every console switch if set_par | |
423 | * is slow. It is a good idea to try this flag in the drivers initialization | |
424 | * code whenever there is a bug report related to switching between X and the | |
425 | * framebuffer console. | |
426 | */ | |
427 | #define FBINFO_MISC_ALWAYS_SETPAR 0x40000 | |
428 | ||
b26c9497 DA |
429 | /* where the fb is a firmware driver, and can be replaced with a proper one */ |
430 | #define FBINFO_MISC_FIRMWARE 0x80000 | |
e4c690e0 AV |
431 | /* |
432 | * Host and GPU endianness differ. | |
433 | */ | |
434 | #define FBINFO_FOREIGN_ENDIAN 0x100000 | |
435 | /* | |
436 | * Big endian math. This is the same flags as above, but with different | |
437 | * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag | |
438 | * and host endianness. Drivers should not use this flag. | |
439 | */ | |
440 | #define FBINFO_BE_MATH 0x100000 | |
441 | ||
8fd4bd22 JB |
442 | /* report to the VT layer that this fb driver can accept forced console |
443 | output like oopses */ | |
444 | #define FBINFO_CAN_FORCE_OUTPUT 0x200000 | |
445 | ||
1da177e4 | 446 | struct fb_info { |
698b3682 | 447 | atomic_t count; |
1da177e4 LT |
448 | int node; |
449 | int flags; | |
3e680aae | 450 | struct mutex lock; /* Lock for open/release/ioctl funcs */ |
537a1bf0 | 451 | struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */ |
1da177e4 LT |
452 | struct fb_var_screeninfo var; /* Current var */ |
453 | struct fb_fix_screeninfo fix; /* Current fix */ | |
454 | struct fb_monspecs monspecs; /* Current Monitor specs */ | |
455 | struct work_struct queue; /* Framebuffer event queue */ | |
456 | struct fb_pixmap pixmap; /* Image hardware mapper */ | |
457 | struct fb_pixmap sprite; /* Cursor hardware mapper */ | |
458 | struct fb_cmap cmap; /* Current cmap */ | |
459 | struct list_head modelist; /* mode list */ | |
460 | struct fb_videomode *mode; /* current mode */ | |
5474c120 MH |
461 | |
462 | #ifdef CONFIG_FB_BACKLIGHT | |
5474c120 | 463 | /* assigned backlight device */ |
37ce69a5 RP |
464 | /* set before framebuffer registration, |
465 | remove after unregister */ | |
5474c120 MH |
466 | struct backlight_device *bl_dev; |
467 | ||
468 | /* Backlight level curve */ | |
37ce69a5 | 469 | struct mutex bl_curve_mutex; |
5474c120 MH |
470 | u8 bl_curve[FB_BACKLIGHT_LEVELS]; |
471 | #endif | |
60b59bea JK |
472 | #ifdef CONFIG_FB_DEFERRED_IO |
473 | struct delayed_work deferred_work; | |
474 | struct fb_deferred_io *fbdefio; | |
475 | #endif | |
5474c120 | 476 | |
1da177e4 | 477 | struct fb_ops *fbops; |
78cde088 GKH |
478 | struct device *device; /* This is the parent */ |
479 | struct device *dev; /* This is this fb device */ | |
1a6600be | 480 | int class_flag; /* private sysfs flags */ |
1da177e4 LT |
481 | #ifdef CONFIG_FB_TILEBLITTING |
482 | struct fb_tile_ops *tileops; /* Tile Blitting */ | |
483 | #endif | |
484 | char __iomem *screen_base; /* Virtual address */ | |
485 | unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */ | |
486 | void *pseudo_palette; /* Fake palette of 16 colors */ | |
487 | #define FBINFO_STATE_RUNNING 0 | |
488 | #define FBINFO_STATE_SUSPENDED 1 | |
489 | u32 state; /* Hardware state i.e suspend */ | |
490 | void *fbcon_par; /* fbcon use-only private area */ | |
491 | /* From here on everything is device dependent */ | |
4410f391 | 492 | void *par; |
25985edc | 493 | /* we need the PCI or similar aperture base/size not |
4410f391 DA |
494 | smem_start/size as smem_start may just be an object |
495 | allocated inside the aperture so may not actually overlap */ | |
1471ca9a MS |
496 | struct apertures_struct { |
497 | unsigned int count; | |
498 | struct aperture { | |
499 | resource_size_t base; | |
500 | resource_size_t size; | |
501 | } ranges[0]; | |
502 | } *apertures; | |
1da177e4 LT |
503 | }; |
504 | ||
1471ca9a MS |
505 | static inline struct apertures_struct *alloc_apertures(unsigned int max_num) { |
506 | struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct) | |
507 | + max_num * sizeof(struct aperture), GFP_KERNEL); | |
772a2f9b DC |
508 | if (!a) |
509 | return NULL; | |
1471ca9a MS |
510 | a->count = max_num; |
511 | return a; | |
512 | } | |
513 | ||
1da177e4 LT |
514 | #ifdef MODULE |
515 | #define FBINFO_DEFAULT FBINFO_MODULE | |
516 | #else | |
517 | #define FBINFO_DEFAULT 0 | |
518 | #endif | |
519 | ||
520 | // This will go away | |
521 | #define FBINFO_FLAG_MODULE FBINFO_MODULE | |
522 | #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT | |
523 | ||
524 | /* This will go away | |
525 | * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags | |
526 | * when it wants to turn the acceleration engine on. This is | |
527 | * really a separate operation, and should be modified via sysfs. | |
528 | * But for now, we leave it broken with the following define | |
529 | */ | |
530 | #define STUPID_ACCELF_TEXT_SHIT | |
531 | ||
532 | // This will go away | |
533 | #if defined(__sparc__) | |
534 | ||
535 | /* We map all of our framebuffers such that big-endian accesses | |
536 | * are what we want, so the following is sufficient. | |
537 | */ | |
538 | ||
539 | // This will go away | |
540 | #define fb_readb sbus_readb | |
541 | #define fb_readw sbus_readw | |
542 | #define fb_readl sbus_readl | |
543 | #define fb_readq sbus_readq | |
544 | #define fb_writeb sbus_writeb | |
545 | #define fb_writew sbus_writew | |
546 | #define fb_writel sbus_writel | |
547 | #define fb_writeq sbus_writeq | |
548 | #define fb_memset sbus_memset_io | |
f11b478d JH |
549 | #define fb_memcpy_fromfb sbus_memcpy_fromio |
550 | #define fb_memcpy_tofb sbus_memcpy_toio | |
1da177e4 | 551 | |
00115e66 | 552 | #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__) |
1da177e4 LT |
553 | |
554 | #define fb_readb __raw_readb | |
555 | #define fb_readw __raw_readw | |
556 | #define fb_readl __raw_readl | |
557 | #define fb_readq __raw_readq | |
558 | #define fb_writeb __raw_writeb | |
559 | #define fb_writew __raw_writew | |
560 | #define fb_writel __raw_writel | |
561 | #define fb_writeq __raw_writeq | |
562 | #define fb_memset memset_io | |
f11b478d JH |
563 | #define fb_memcpy_fromfb memcpy_fromio |
564 | #define fb_memcpy_tofb memcpy_toio | |
1da177e4 LT |
565 | |
566 | #else | |
567 | ||
568 | #define fb_readb(addr) (*(volatile u8 *) (addr)) | |
569 | #define fb_readw(addr) (*(volatile u16 *) (addr)) | |
570 | #define fb_readl(addr) (*(volatile u32 *) (addr)) | |
571 | #define fb_readq(addr) (*(volatile u64 *) (addr)) | |
572 | #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b)) | |
573 | #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b)) | |
574 | #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b)) | |
575 | #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b)) | |
576 | #define fb_memset memset | |
f11b478d JH |
577 | #define fb_memcpy_fromfb memcpy |
578 | #define fb_memcpy_tofb memcpy | |
1da177e4 | 579 | |
be0d9b6c AD |
580 | #endif |
581 | ||
e4c690e0 AV |
582 | #define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0) |
583 | #define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \ | |
584 | (val) << (bits)) | |
585 | #define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \ | |
586 | (val) >> (bits)) | |
1da177e4 LT |
587 | |
588 | /* | |
589 | * `Generic' versions of the frame buffer device operations | |
590 | */ | |
591 | ||
592 | extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var); | |
593 | extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var); | |
594 | extern int fb_blank(struct fb_info *info, int blank); | |
1da177e4 LT |
595 | extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); |
596 | extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); | |
597 | extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image); | |
68648ed1 AD |
598 | /* |
599 | * Drawing operations where framebuffer is in system RAM | |
600 | */ | |
601 | extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect); | |
602 | extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area); | |
603 | extern void sys_imageblit(struct fb_info *info, const struct fb_image *image); | |
09aaf268 AD |
604 | extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf, |
605 | size_t count, loff_t *ppos); | |
606 | extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf, | |
607 | size_t count, loff_t *ppos); | |
1da177e4 LT |
608 | |
609 | /* drivers/video/fbmem.c */ | |
610 | extern int register_framebuffer(struct fb_info *fb_info); | |
611 | extern int unregister_framebuffer(struct fb_info *fb_info); | |
ce880cb8 | 612 | extern int unlink_framebuffer(struct fb_info *fb_info); |
3b9676e7 MS |
613 | extern void remove_conflicting_framebuffers(struct apertures_struct *a, |
614 | const char *name, bool primary); | |
9c44e5f6 AD |
615 | extern int fb_prepare_logo(struct fb_info *fb_info, int rotate); |
616 | extern int fb_show_logo(struct fb_info *fb_info, int rotate); | |
1da177e4 | 617 | extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size); |
f1ab5dac | 618 | extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx, |
1da177e4 | 619 | u32 height, u32 shift_high, u32 shift_low, u32 mod); |
f1ab5dac | 620 | extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height); |
1da177e4 | 621 | extern void fb_set_suspend(struct fb_info *info, int state); |
b8c90945 AD |
622 | extern int fb_get_color_depth(struct fb_var_screeninfo *var, |
623 | struct fb_fix_screeninfo *fix); | |
1da177e4 LT |
624 | extern int fb_get_options(char *name, char **option); |
625 | extern int fb_new_modelist(struct fb_info *info); | |
626 | ||
627 | extern struct fb_info *registered_fb[FB_MAX]; | |
628 | extern int num_registered_fb; | |
9db71a18 | 629 | extern struct class *fb_class; |
1da177e4 | 630 | |
6a7f2829 | 631 | extern int lock_fb_info(struct fb_info *info); |
1f5e31d7 AR |
632 | |
633 | static inline void unlock_fb_info(struct fb_info *info) | |
634 | { | |
635 | mutex_unlock(&info->lock); | |
636 | } | |
637 | ||
829e79b6 AD |
638 | static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, |
639 | u8 *src, u32 s_pitch, u32 height) | |
640 | { | |
641 | int i, j; | |
642 | ||
643 | d_pitch -= s_pitch; | |
644 | ||
645 | for (i = height; i--; ) { | |
646 | /* s_pitch is a few bytes at the most, memcpy is suboptimal */ | |
647 | for (j = 0; j < s_pitch; j++) | |
648 | *dst++ = *src++; | |
649 | dst += d_pitch; | |
650 | } | |
651 | } | |
652 | ||
60b59bea JK |
653 | /* drivers/video/fb_defio.c */ |
654 | extern void fb_deferred_io_init(struct fb_info *info); | |
d847471d IC |
655 | extern void fb_deferred_io_open(struct fb_info *info, |
656 | struct inode *inode, | |
657 | struct file *file); | |
60b59bea | 658 | extern void fb_deferred_io_cleanup(struct fb_info *info); |
02c24a82 JB |
659 | extern int fb_deferred_io_fsync(struct file *file, loff_t start, |
660 | loff_t end, int datasync); | |
60b59bea | 661 | |
e4c690e0 AV |
662 | static inline bool fb_be_math(struct fb_info *info) |
663 | { | |
664 | #ifdef CONFIG_FB_FOREIGN_ENDIAN | |
665 | #if defined(CONFIG_FB_BOTH_ENDIAN) | |
666 | return info->flags & FBINFO_BE_MATH; | |
667 | #elif defined(CONFIG_FB_BIG_ENDIAN) | |
668 | return true; | |
669 | #elif defined(CONFIG_FB_LITTLE_ENDIAN) | |
670 | return false; | |
671 | #endif /* CONFIG_FB_BOTH_ENDIAN */ | |
672 | #else | |
673 | #ifdef __BIG_ENDIAN | |
674 | return true; | |
675 | #else | |
676 | return false; | |
677 | #endif /* __BIG_ENDIAN */ | |
678 | #endif /* CONFIG_FB_FOREIGN_ENDIAN */ | |
679 | } | |
680 | ||
1da177e4 LT |
681 | /* drivers/video/fbsysfs.c */ |
682 | extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev); | |
683 | extern void framebuffer_release(struct fb_info *info); | |
78cde088 GKH |
684 | extern int fb_init_device(struct fb_info *fb_info); |
685 | extern void fb_cleanup_device(struct fb_info *head); | |
5474c120 | 686 | extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max); |
1da177e4 LT |
687 | |
688 | /* drivers/video/fbmon.c */ | |
689 | #define FB_MAXTIMINGS 0 | |
690 | #define FB_VSYNCTIMINGS 1 | |
691 | #define FB_HSYNCTIMINGS 2 | |
692 | #define FB_DCLKTIMINGS 3 | |
693 | #define FB_IGNOREMON 0x100 | |
694 | ||
695 | #define FB_MODE_IS_UNKNOWN 0 | |
696 | #define FB_MODE_IS_DETAILED 1 | |
697 | #define FB_MODE_IS_STANDARD 2 | |
698 | #define FB_MODE_IS_VESA 4 | |
699 | #define FB_MODE_IS_CALCULATED 8 | |
700 | #define FB_MODE_IS_FIRST 16 | |
701 | #define FB_MODE_IS_FROM_VAR 32 | |
702 | ||
1da177e4 LT |
703 | extern int fbmon_dpms(const struct fb_info *fb_info); |
704 | extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var, | |
705 | struct fb_info *info); | |
706 | extern int fb_validate_mode(const struct fb_var_screeninfo *var, | |
707 | struct fb_info *info); | |
708 | extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var); | |
5e518d76 AD |
709 | extern const unsigned char *fb_firmware_edid(struct device *device); |
710 | extern void fb_edid_to_monspecs(unsigned char *edid, | |
711 | struct fb_monspecs *specs); | |
9fbbdde9 EG |
712 | extern void fb_edid_add_monspecs(unsigned char *edid, |
713 | struct fb_monspecs *specs); | |
1da177e4 | 714 | extern void fb_destroy_modedb(struct fb_videomode *modedb); |
96fe6a21 | 715 | extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb); |
fc5891c8 | 716 | extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter); |
1da177e4 | 717 | |
2db54c72 ST |
718 | extern int fb_videomode_from_videomode(const struct videomode *vm, |
719 | struct fb_videomode *fbmode); | |
720 | ||
1da177e4 LT |
721 | /* drivers/video/modedb.c */ |
722 | #define VESA_MODEDB_SIZE 34 | |
723 | extern void fb_var_to_videomode(struct fb_videomode *mode, | |
9791d763 | 724 | const struct fb_var_screeninfo *var); |
1da177e4 | 725 | extern void fb_videomode_to_var(struct fb_var_screeninfo *var, |
9791d763 GU |
726 | const struct fb_videomode *mode); |
727 | extern int fb_mode_is_equal(const struct fb_videomode *mode1, | |
728 | const struct fb_videomode *mode2); | |
729 | extern int fb_add_videomode(const struct fb_videomode *mode, | |
730 | struct list_head *head); | |
731 | extern void fb_delete_videomode(const struct fb_videomode *mode, | |
1da177e4 | 732 | struct list_head *head); |
9791d763 GU |
733 | extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var, |
734 | struct list_head *head); | |
735 | extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var, | |
736 | struct list_head *head); | |
737 | extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode, | |
738 | struct list_head *head); | |
1da177e4 | 739 | extern void fb_destroy_modelist(struct list_head *head); |
9791d763 | 740 | extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num, |
1da177e4 | 741 | struct list_head *head); |
9791d763 GU |
742 | extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs, |
743 | struct list_head *head); | |
1da177e4 LT |
744 | |
745 | /* drivers/video/fbcmap.c */ | |
746 | extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp); | |
1e7c7804 | 747 | extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags); |
1da177e4 | 748 | extern void fb_dealloc_cmap(struct fb_cmap *cmap); |
adf6b206 HD |
749 | extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to); |
750 | extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to); | |
1da177e4 LT |
751 | extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info); |
752 | extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info); | |
adf6b206 | 753 | extern const struct fb_cmap *fb_default_cmap(int len); |
1da177e4 LT |
754 | extern void fb_invert_cmaps(void); |
755 | ||
756 | struct fb_videomode { | |
757 | const char *name; /* optional */ | |
758 | u32 refresh; /* optional */ | |
759 | u32 xres; | |
760 | u32 yres; | |
761 | u32 pixclock; | |
762 | u32 left_margin; | |
763 | u32 right_margin; | |
764 | u32 upper_margin; | |
765 | u32 lower_margin; | |
766 | u32 hsync_len; | |
767 | u32 vsync_len; | |
768 | u32 sync; | |
769 | u32 vmode; | |
770 | u32 flag; | |
771 | }; | |
772 | ||
9a054fba | 773 | extern const char *fb_mode_option; |
1da177e4 | 774 | extern const struct fb_videomode vesa_modes[]; |
0ad83f68 | 775 | extern const struct fb_videomode cea_modes[64]; |
1da177e4 LT |
776 | |
777 | struct fb_modelist { | |
778 | struct list_head list; | |
779 | struct fb_videomode mode; | |
780 | }; | |
781 | ||
782 | extern int fb_find_mode(struct fb_var_screeninfo *var, | |
783 | struct fb_info *info, const char *mode_option, | |
784 | const struct fb_videomode *db, | |
785 | unsigned int dbsize, | |
786 | const struct fb_videomode *default_mode, | |
787 | unsigned int default_bpp); | |
788 | ||
1da177e4 | 789 | #endif /* _LINUX_FB_H */ |