Branch data Line data Source code
1 : : #ifndef _LINUX_FB_H
2 : : #define _LINUX_FB_H
3 : :
4 : : #include <linux/kgdb.h>
5 : : #include <uapi/linux/fb.h>
6 : :
7 : : #define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user)
8 : :
9 : : #include <linux/fs.h>
10 : : #include <linux/init.h>
11 : : #include <linux/workqueue.h>
12 : : #include <linux/notifier.h>
13 : : #include <linux/list.h>
14 : : #include <linux/backlight.h>
15 : : #include <linux/slab.h>
16 : : #include <asm/io.h>
17 : :
18 : : struct vm_area_struct;
19 : : struct fb_info;
20 : : struct device;
21 : : struct file;
22 : : struct videomode;
23 : : struct device_node;
24 : :
25 : : /* Definitions below are used in the parsed monitor specs */
26 : : #define FB_DPMS_ACTIVE_OFF 1
27 : : #define FB_DPMS_SUSPEND 2
28 : : #define FB_DPMS_STANDBY 4
29 : :
30 : : #define FB_DISP_DDI 1
31 : : #define FB_DISP_ANA_700_300 2
32 : : #define FB_DISP_ANA_714_286 4
33 : : #define FB_DISP_ANA_1000_400 8
34 : : #define FB_DISP_ANA_700_000 16
35 : :
36 : : #define FB_DISP_MONO 32
37 : : #define FB_DISP_RGB 64
38 : : #define FB_DISP_MULTI 128
39 : : #define FB_DISP_UNKNOWN 256
40 : :
41 : : #define FB_SIGNAL_NONE 0
42 : : #define FB_SIGNAL_BLANK_BLANK 1
43 : : #define FB_SIGNAL_SEPARATE 2
44 : : #define FB_SIGNAL_COMPOSITE 4
45 : : #define FB_SIGNAL_SYNC_ON_GREEN 8
46 : : #define FB_SIGNAL_SERRATION_ON 16
47 : :
48 : : #define FB_MISC_PRIM_COLOR 1
49 : : #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
50 : : struct fb_chroma {
51 : : __u32 redx; /* in fraction of 1024 */
52 : : __u32 greenx;
53 : : __u32 bluex;
54 : : __u32 whitex;
55 : : __u32 redy;
56 : : __u32 greeny;
57 : : __u32 bluey;
58 : : __u32 whitey;
59 : : };
60 : :
61 : : struct fb_monspecs {
62 : : struct fb_chroma chroma;
63 : : struct fb_videomode *modedb; /* mode database */
64 : : __u8 manufacturer[4]; /* Manufacturer */
65 : : __u8 monitor[14]; /* Monitor String */
66 : : __u8 serial_no[14]; /* Serial Number */
67 : : __u8 ascii[14]; /* ? */
68 : : __u32 modedb_len; /* mode database length */
69 : : __u32 model; /* Monitor Model */
70 : : __u32 serial; /* Serial Number - Integer */
71 : : __u32 year; /* Year manufactured */
72 : : __u32 week; /* Week Manufactured */
73 : : __u32 hfmin; /* hfreq lower limit (Hz) */
74 : : __u32 hfmax; /* hfreq upper limit (Hz) */
75 : : __u32 dclkmin; /* pixelclock lower limit (Hz) */
76 : : __u32 dclkmax; /* pixelclock upper limit (Hz) */
77 : : __u16 input; /* display type - see FB_DISP_* */
78 : : __u16 dpms; /* DPMS support - see FB_DPMS_ */
79 : : __u16 signal; /* Signal Type - see FB_SIGNAL_* */
80 : : __u16 vfmin; /* vfreq lower limit (Hz) */
81 : : __u16 vfmax; /* vfreq upper limit (Hz) */
82 : : __u16 gamma; /* Gamma - in fractions of 100 */
83 : : __u16 gtf : 1; /* supports GTF */
84 : : __u16 misc; /* Misc flags - see FB_MISC_* */
85 : : __u8 version; /* EDID version... */
86 : : __u8 revision; /* ...and revision */
87 : : __u8 max_x; /* Maximum horizontal size (cm) */
88 : : __u8 max_y; /* Maximum vertical size (cm) */
89 : : };
90 : :
91 : : struct fb_cmap_user {
92 : : __u32 start; /* First entry */
93 : : __u32 len; /* Number of entries */
94 : : __u16 __user *red; /* Red values */
95 : : __u16 __user *green;
96 : : __u16 __user *blue;
97 : : __u16 __user *transp; /* transparency, can be NULL */
98 : : };
99 : :
100 : : struct fb_image_user {
101 : : __u32 dx; /* Where to place image */
102 : : __u32 dy;
103 : : __u32 width; /* Size of image */
104 : : __u32 height;
105 : : __u32 fg_color; /* Only used when a mono bitmap */
106 : : __u32 bg_color;
107 : : __u8 depth; /* Depth of the image */
108 : : const char __user *data; /* Pointer to image data */
109 : : struct fb_cmap_user cmap; /* color map info */
110 : : };
111 : :
112 : : struct fb_cursor_user {
113 : : __u16 set; /* what to set */
114 : : __u16 enable; /* cursor on/off */
115 : : __u16 rop; /* bitop operation */
116 : : const char __user *mask; /* cursor mask bits */
117 : : struct fbcurpos hot; /* cursor hot spot */
118 : : struct fb_image_user image; /* Cursor image */
119 : : };
120 : :
121 : : /*
122 : : * Register/unregister for framebuffer events
123 : : */
124 : :
125 : : /* The resolution of the passed in fb_info about to change */
126 : : #define FB_EVENT_MODE_CHANGE 0x01
127 : : /* The display on this fb_info is beeing suspended, no access to the
128 : : * framebuffer is allowed any more after that call returns
129 : : */
130 : : #define FB_EVENT_SUSPEND 0x02
131 : : /* The display on this fb_info was resumed, you can restore the display
132 : : * if you own it
133 : : */
134 : : #define FB_EVENT_RESUME 0x03
135 : : /* An entry from the modelist was removed */
136 : : #define FB_EVENT_MODE_DELETE 0x04
137 : : /* A driver registered itself */
138 : : #define FB_EVENT_FB_REGISTERED 0x05
139 : : /* A driver unregistered itself */
140 : : #define FB_EVENT_FB_UNREGISTERED 0x06
141 : : /* CONSOLE-SPECIFIC: get console to framebuffer mapping */
142 : : #define FB_EVENT_GET_CONSOLE_MAP 0x07
143 : : /* CONSOLE-SPECIFIC: set console to framebuffer mapping */
144 : : #define FB_EVENT_SET_CONSOLE_MAP 0x08
145 : : /* A hardware display blank change occurred */
146 : : #define FB_EVENT_BLANK 0x09
147 : : /* Private modelist is to be replaced */
148 : : #define FB_EVENT_NEW_MODELIST 0x0A
149 : : /* The resolution of the passed in fb_info about to change and
150 : : all vc's should be changed */
151 : : #define FB_EVENT_MODE_CHANGE_ALL 0x0B
152 : : /* A software display blank change occurred */
153 : : #define FB_EVENT_CONBLANK 0x0C
154 : : /* Get drawing requirements */
155 : : #define FB_EVENT_GET_REQ 0x0D
156 : : /* Unbind from the console if possible */
157 : : #define FB_EVENT_FB_UNBIND 0x0E
158 : : /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
159 : : #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
160 : : /* A hardware display blank early change occured */
161 : : #define FB_EARLY_EVENT_BLANK 0x10
162 : : /* A hardware display blank revert early change occured */
163 : : #define FB_R_EARLY_EVENT_BLANK 0x11
164 : :
165 : : struct fb_event {
166 : : struct fb_info *info;
167 : : void *data;
168 : : };
169 : :
170 : : struct fb_blit_caps {
171 : : u32 x;
172 : : u32 y;
173 : : u32 len;
174 : : u32 flags;
175 : : };
176 : :
177 : : extern int fb_register_client(struct notifier_block *nb);
178 : : extern int fb_unregister_client(struct notifier_block *nb);
179 : : extern int fb_notifier_call_chain(unsigned long val, void *v);
180 : : /*
181 : : * Pixmap structure definition
182 : : *
183 : : * The purpose of this structure is to translate data
184 : : * from the hardware independent format of fbdev to what
185 : : * format the hardware needs.
186 : : */
187 : :
188 : : #define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
189 : : #define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
190 : : #define FB_PIXMAP_IO 4 /* memory is iomapped */
191 : : #define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
192 : :
193 : : struct fb_pixmap {
194 : : u8 *addr; /* pointer to memory */
195 : : u32 size; /* size of buffer in bytes */
196 : : u32 offset; /* current offset to buffer */
197 : : u32 buf_align; /* byte alignment of each bitmap */
198 : : u32 scan_align; /* alignment per scanline */
199 : : u32 access_align; /* alignment per read/write (bits) */
200 : : u32 flags; /* see FB_PIXMAP_* */
201 : : u32 blit_x; /* supported bit block dimensions (1-32)*/
202 : : u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
203 : : /* blit_y = 1 << (height - 1) */
204 : : /* if 0, will be set to 0xffffffff (all)*/
205 : : /* access methods */
206 : : void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
207 : : void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
208 : : };
209 : :
210 : : #ifdef CONFIG_FB_DEFERRED_IO
211 : : struct fb_deferred_io {
212 : : /* delay between mkwrite and deferred handler */
213 : : unsigned long delay;
214 : : struct mutex lock; /* mutex that protects the page list */
215 : : struct list_head pagelist; /* list of touched pages */
216 : : /* callback */
217 : : void (*first_io)(struct fb_info *info);
218 : : void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
219 : : };
220 : : #endif
221 : :
222 : : /*
223 : : * Frame buffer operations
224 : : *
225 : : * LOCKING NOTE: those functions must _ALL_ be called with the console
226 : : * semaphore held, this is the only suitable locking mechanism we have
227 : : * in 2.6. Some may be called at interrupt time at this point though.
228 : : *
229 : : * The exception to this is the debug related hooks. Putting the fb
230 : : * into a debug state (e.g. flipping to the kernel console) and restoring
231 : : * it must be done in a lock-free manner, so low level drivers should
232 : : * keep track of the initial console (if applicable) and may need to
233 : : * perform direct, unlocked hardware writes in these hooks.
234 : : */
235 : :
236 : : struct fb_ops {
237 : : /* open/release and usage marking */
238 : : struct module *owner;
239 : : int (*fb_open)(struct fb_info *info, int user);
240 : : int (*fb_release)(struct fb_info *info, int user);
241 : :
242 : : /* For framebuffers with strange non linear layouts or that do not
243 : : * work with normal memory mapped access
244 : : */
245 : : ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
246 : : size_t count, loff_t *ppos);
247 : : ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
248 : : size_t count, loff_t *ppos);
249 : :
250 : : /* checks var and eventually tweaks it to something supported,
251 : : * DO NOT MODIFY PAR */
252 : : int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
253 : :
254 : : /* set the video mode according to info->var */
255 : : int (*fb_set_par)(struct fb_info *info);
256 : :
257 : : /* set color register */
258 : : int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
259 : : unsigned blue, unsigned transp, struct fb_info *info);
260 : :
261 : : /* set color registers in batch */
262 : : int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
263 : :
264 : : /* blank display */
265 : : int (*fb_blank)(int blank, struct fb_info *info);
266 : :
267 : : /* pan display */
268 : : int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
269 : :
270 : : /* Draws a rectangle */
271 : : void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
272 : : /* Copy data from area to another */
273 : : void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
274 : : /* Draws a image to the display */
275 : : void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
276 : :
277 : : /* Draws cursor */
278 : : int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
279 : :
280 : : /* Rotates the display */
281 : : void (*fb_rotate)(struct fb_info *info, int angle);
282 : :
283 : : /* wait for blit idle, optional */
284 : : int (*fb_sync)(struct fb_info *info);
285 : :
286 : : /* perform fb specific ioctl (optional) */
287 : : int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
288 : : unsigned long arg);
289 : :
290 : : /* Handle 32bit compat ioctl (optional) */
291 : : int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
292 : : unsigned long arg);
293 : :
294 : : /* perform fb specific mmap */
295 : : int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
296 : :
297 : : /* get capability given var */
298 : : void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
299 : : struct fb_var_screeninfo *var);
300 : :
301 : : /* teardown any resources to do with this framebuffer */
302 : : void (*fb_destroy)(struct fb_info *info);
303 : :
304 : : /* called at KDB enter and leave time to prepare the console */
305 : : int (*fb_debug_enter)(struct fb_info *info);
306 : : int (*fb_debug_leave)(struct fb_info *info);
307 : : };
308 : :
309 : : #ifdef CONFIG_FB_TILEBLITTING
310 : : #define FB_TILE_CURSOR_NONE 0
311 : : #define FB_TILE_CURSOR_UNDERLINE 1
312 : : #define FB_TILE_CURSOR_LOWER_THIRD 2
313 : : #define FB_TILE_CURSOR_LOWER_HALF 3
314 : : #define FB_TILE_CURSOR_TWO_THIRDS 4
315 : : #define FB_TILE_CURSOR_BLOCK 5
316 : :
317 : : struct fb_tilemap {
318 : : __u32 width; /* width of each tile in pixels */
319 : : __u32 height; /* height of each tile in scanlines */
320 : : __u32 depth; /* color depth of each tile */
321 : : __u32 length; /* number of tiles in the map */
322 : : const __u8 *data; /* actual tile map: a bitmap array, packed
323 : : to the nearest byte */
324 : : };
325 : :
326 : : struct fb_tilerect {
327 : : __u32 sx; /* origin in the x-axis */
328 : : __u32 sy; /* origin in the y-axis */
329 : : __u32 width; /* number of tiles in the x-axis */
330 : : __u32 height; /* number of tiles in the y-axis */
331 : : __u32 index; /* what tile to use: index to tile map */
332 : : __u32 fg; /* foreground color */
333 : : __u32 bg; /* background color */
334 : : __u32 rop; /* raster operation */
335 : : };
336 : :
337 : : struct fb_tilearea {
338 : : __u32 sx; /* source origin in the x-axis */
339 : : __u32 sy; /* source origin in the y-axis */
340 : : __u32 dx; /* destination origin in the x-axis */
341 : : __u32 dy; /* destination origin in the y-axis */
342 : : __u32 width; /* number of tiles in the x-axis */
343 : : __u32 height; /* number of tiles in the y-axis */
344 : : };
345 : :
346 : : struct fb_tileblit {
347 : : __u32 sx; /* origin in the x-axis */
348 : : __u32 sy; /* origin in the y-axis */
349 : : __u32 width; /* number of tiles in the x-axis */
350 : : __u32 height; /* number of tiles in the y-axis */
351 : : __u32 fg; /* foreground color */
352 : : __u32 bg; /* background color */
353 : : __u32 length; /* number of tiles to draw */
354 : : __u32 *indices; /* array of indices to tile map */
355 : : };
356 : :
357 : : struct fb_tilecursor {
358 : : __u32 sx; /* cursor position in the x-axis */
359 : : __u32 sy; /* cursor position in the y-axis */
360 : : __u32 mode; /* 0 = erase, 1 = draw */
361 : : __u32 shape; /* see FB_TILE_CURSOR_* */
362 : : __u32 fg; /* foreground color */
363 : : __u32 bg; /* background color */
364 : : };
365 : :
366 : : struct fb_tile_ops {
367 : : /* set tile characteristics */
368 : : void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
369 : :
370 : : /* all dimensions from hereon are in terms of tiles */
371 : :
372 : : /* move a rectangular region of tiles from one area to another*/
373 : : void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
374 : : /* fill a rectangular region with a tile */
375 : : void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
376 : : /* copy an array of tiles */
377 : : void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
378 : : /* cursor */
379 : : void (*fb_tilecursor)(struct fb_info *info,
380 : : struct fb_tilecursor *cursor);
381 : : /* get maximum length of the tile map */
382 : : int (*fb_get_tilemax)(struct fb_info *info);
383 : : };
384 : : #endif /* CONFIG_FB_TILEBLITTING */
385 : :
386 : : /* FBINFO_* = fb_info.flags bit flags */
387 : : #define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
388 : : #define FBINFO_HWACCEL_DISABLED 0x0002
389 : : /* When FBINFO_HWACCEL_DISABLED is set:
390 : : * Hardware acceleration is turned off. Software implementations
391 : : * of required functions (copyarea(), fillrect(), and imageblit())
392 : : * takes over; acceleration engine should be in a quiescent state */
393 : :
394 : : /* hints */
395 : : #define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */
396 : : #define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
397 : : #define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
398 : :
399 : : /* hardware supported ops */
400 : : /* semantics: when a bit is set, it indicates that the operation is
401 : : * accelerated by hardware.
402 : : * required functions will still work even if the bit is not set.
403 : : * optional functions may not even exist if the flag bit is not set.
404 : : */
405 : : #define FBINFO_HWACCEL_NONE 0x0000
406 : : #define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
407 : : #define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
408 : : #define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
409 : : #define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
410 : : #define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
411 : : #define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
412 : : #define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
413 : :
414 : : #define FBINFO_MISC_USEREVENT 0x10000 /* event request
415 : : from userspace */
416 : : #define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
417 : :
418 : : /* A driver may set this flag to indicate that it does want a set_par to be
419 : : * called every time when fbcon_switch is executed. The advantage is that with
420 : : * this flag set you can really be sure that set_par is always called before
421 : : * any of the functions dependent on the correct hardware state or altering
422 : : * that state, even if you are using some broken X releases. The disadvantage
423 : : * is that it introduces unwanted delays to every console switch if set_par
424 : : * is slow. It is a good idea to try this flag in the drivers initialization
425 : : * code whenever there is a bug report related to switching between X and the
426 : : * framebuffer console.
427 : : */
428 : : #define FBINFO_MISC_ALWAYS_SETPAR 0x40000
429 : :
430 : : /* where the fb is a firmware driver, and can be replaced with a proper one */
431 : : #define FBINFO_MISC_FIRMWARE 0x80000
432 : : /*
433 : : * Host and GPU endianness differ.
434 : : */
435 : : #define FBINFO_FOREIGN_ENDIAN 0x100000
436 : : /*
437 : : * Big endian math. This is the same flags as above, but with different
438 : : * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
439 : : * and host endianness. Drivers should not use this flag.
440 : : */
441 : : #define FBINFO_BE_MATH 0x100000
442 : :
443 : : /* report to the VT layer that this fb driver can accept forced console
444 : : output like oopses */
445 : : #define FBINFO_CAN_FORCE_OUTPUT 0x200000
446 : :
447 : : struct fb_info {
448 : : atomic_t count;
449 : : int node;
450 : : int flags;
451 : : struct mutex lock; /* Lock for open/release/ioctl funcs */
452 : : struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
453 : : struct fb_var_screeninfo var; /* Current var */
454 : : struct fb_fix_screeninfo fix; /* Current fix */
455 : : struct fb_monspecs monspecs; /* Current Monitor specs */
456 : : struct work_struct queue; /* Framebuffer event queue */
457 : : struct fb_pixmap pixmap; /* Image hardware mapper */
458 : : struct fb_pixmap sprite; /* Cursor hardware mapper */
459 : : struct fb_cmap cmap; /* Current cmap */
460 : : struct list_head modelist; /* mode list */
461 : : struct fb_videomode *mode; /* current mode */
462 : :
463 : : #ifdef CONFIG_FB_BACKLIGHT
464 : : /* assigned backlight device */
465 : : /* set before framebuffer registration,
466 : : remove after unregister */
467 : : struct backlight_device *bl_dev;
468 : :
469 : : /* Backlight level curve */
470 : : struct mutex bl_curve_mutex;
471 : : u8 bl_curve[FB_BACKLIGHT_LEVELS];
472 : : #endif
473 : : #ifdef CONFIG_FB_DEFERRED_IO
474 : : struct delayed_work deferred_work;
475 : : struct fb_deferred_io *fbdefio;
476 : : #endif
477 : :
478 : : struct fb_ops *fbops;
479 : : struct device *device; /* This is the parent */
480 : : struct device *dev; /* This is this fb device */
481 : : int class_flag; /* private sysfs flags */
482 : : #ifdef CONFIG_FB_TILEBLITTING
483 : : struct fb_tile_ops *tileops; /* Tile Blitting */
484 : : #endif
485 : : char __iomem *screen_base; /* Virtual address */
486 : : unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
487 : : void *pseudo_palette; /* Fake palette of 16 colors */
488 : : #define FBINFO_STATE_RUNNING 0
489 : : #define FBINFO_STATE_SUSPENDED 1
490 : : u32 state; /* Hardware state i.e suspend */
491 : : void *fbcon_par; /* fbcon use-only private area */
492 : : /* From here on everything is device dependent */
493 : : void *par;
494 : : /* we need the PCI or similar aperture base/size not
495 : : smem_start/size as smem_start may just be an object
496 : : allocated inside the aperture so may not actually overlap */
497 : : struct apertures_struct {
498 : : unsigned int count;
499 : : struct aperture {
500 : : resource_size_t base;
501 : : resource_size_t size;
502 : : } ranges[0];
503 : : } *apertures;
504 : :
505 : : bool skip_vt_switch; /* no VT switch on suspend/resume required */
506 : : };
507 : :
508 : : static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
509 : : struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
510 : : + max_num * sizeof(struct aperture), GFP_KERNEL);
511 : : if (!a)
512 : : return NULL;
513 : : a->count = max_num;
514 : : return a;
515 : : }
516 : :
517 : : #ifdef MODULE
518 : : #define FBINFO_DEFAULT FBINFO_MODULE
519 : : #else
520 : : #define FBINFO_DEFAULT 0
521 : : #endif
522 : :
523 : : // This will go away
524 : : #define FBINFO_FLAG_MODULE FBINFO_MODULE
525 : : #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
526 : :
527 : : /* This will go away
528 : : * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
529 : : * when it wants to turn the acceleration engine on. This is
530 : : * really a separate operation, and should be modified via sysfs.
531 : : * But for now, we leave it broken with the following define
532 : : */
533 : : #define STUPID_ACCELF_TEXT_SHIT
534 : :
535 : : // This will go away
536 : : #if defined(__sparc__)
537 : :
538 : : /* We map all of our framebuffers such that big-endian accesses
539 : : * are what we want, so the following is sufficient.
540 : : */
541 : :
542 : : // This will go away
543 : : #define fb_readb sbus_readb
544 : : #define fb_readw sbus_readw
545 : : #define fb_readl sbus_readl
546 : : #define fb_readq sbus_readq
547 : : #define fb_writeb sbus_writeb
548 : : #define fb_writew sbus_writew
549 : : #define fb_writel sbus_writel
550 : : #define fb_writeq sbus_writeq
551 : : #define fb_memset sbus_memset_io
552 : : #define fb_memcpy_fromfb sbus_memcpy_fromio
553 : : #define fb_memcpy_tofb sbus_memcpy_toio
554 : :
555 : : #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
556 : :
557 : : #define fb_readb __raw_readb
558 : : #define fb_readw __raw_readw
559 : : #define fb_readl __raw_readl
560 : : #define fb_readq __raw_readq
561 : : #define fb_writeb __raw_writeb
562 : : #define fb_writew __raw_writew
563 : : #define fb_writel __raw_writel
564 : : #define fb_writeq __raw_writeq
565 : : #define fb_memset memset_io
566 : : #define fb_memcpy_fromfb memcpy_fromio
567 : : #define fb_memcpy_tofb memcpy_toio
568 : :
569 : : #else
570 : :
571 : : #define fb_readb(addr) (*(volatile u8 *) (addr))
572 : : #define fb_readw(addr) (*(volatile u16 *) (addr))
573 : : #define fb_readl(addr) (*(volatile u32 *) (addr))
574 : : #define fb_readq(addr) (*(volatile u64 *) (addr))
575 : : #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
576 : : #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
577 : : #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
578 : : #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
579 : : #define fb_memset memset
580 : : #define fb_memcpy_fromfb memcpy
581 : : #define fb_memcpy_tofb memcpy
582 : :
583 : : #endif
584 : :
585 : : #define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
586 : : #define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
587 : : (val) << (bits))
588 : : #define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
589 : : (val) >> (bits))
590 : :
591 : : /*
592 : : * `Generic' versions of the frame buffer device operations
593 : : */
594 : :
595 : : extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
596 : : extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
597 : : extern int fb_blank(struct fb_info *info, int blank);
598 : : extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
599 : : extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
600 : : extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
601 : : /*
602 : : * Drawing operations where framebuffer is in system RAM
603 : : */
604 : : extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
605 : : extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
606 : : extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
607 : : extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
608 : : size_t count, loff_t *ppos);
609 : : extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
610 : : size_t count, loff_t *ppos);
611 : :
612 : : /* drivers/video/fbmem.c */
613 : : extern int register_framebuffer(struct fb_info *fb_info);
614 : : extern int unregister_framebuffer(struct fb_info *fb_info);
615 : : extern int unlink_framebuffer(struct fb_info *fb_info);
616 : : extern void remove_conflicting_framebuffers(struct apertures_struct *a,
617 : : const char *name, bool primary);
618 : : extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
619 : : extern int fb_show_logo(struct fb_info *fb_info, int rotate);
620 : : extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
621 : : extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
622 : : u32 height, u32 shift_high, u32 shift_low, u32 mod);
623 : : extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
624 : : extern void fb_set_suspend(struct fb_info *info, int state);
625 : : extern int fb_get_color_depth(struct fb_var_screeninfo *var,
626 : : struct fb_fix_screeninfo *fix);
627 : : extern int fb_get_options(const char *name, char **option);
628 : : extern int fb_new_modelist(struct fb_info *info);
629 : :
630 : : extern struct fb_info *registered_fb[FB_MAX];
631 : : extern int num_registered_fb;
632 : : extern struct class *fb_class;
633 : :
634 : : extern int lock_fb_info(struct fb_info *info);
635 : :
636 : : static inline void unlock_fb_info(struct fb_info *info)
637 : : {
638 : 0 : mutex_unlock(&info->lock);
639 : : }
640 : :
641 : : static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
642 : : u8 *src, u32 s_pitch, u32 height)
643 : : {
644 : : int i, j;
645 : :
646 : 0 : d_pitch -= s_pitch;
647 : :
648 [ # # ]: 0 : for (i = height; i--; ) {
649 : : /* s_pitch is a few bytes at the most, memcpy is suboptimal */
650 [ # # ]: 0 : for (j = 0; j < s_pitch; j++)
651 : 0 : *dst++ = *src++;
652 : 0 : dst += d_pitch;
653 : : }
654 : : }
655 : :
656 : : /* drivers/video/fb_defio.c */
657 : : extern void fb_deferred_io_init(struct fb_info *info);
658 : : extern void fb_deferred_io_open(struct fb_info *info,
659 : : struct inode *inode,
660 : : struct file *file);
661 : : extern void fb_deferred_io_cleanup(struct fb_info *info);
662 : : extern int fb_deferred_io_fsync(struct file *file, loff_t start,
663 : : loff_t end, int datasync);
664 : :
665 : : static inline bool fb_be_math(struct fb_info *info)
666 : : {
667 : : #ifdef CONFIG_FB_FOREIGN_ENDIAN
668 : : #if defined(CONFIG_FB_BOTH_ENDIAN)
669 : : return info->flags & FBINFO_BE_MATH;
670 : : #elif defined(CONFIG_FB_BIG_ENDIAN)
671 : : return true;
672 : : #elif defined(CONFIG_FB_LITTLE_ENDIAN)
673 : : return false;
674 : : #endif /* CONFIG_FB_BOTH_ENDIAN */
675 : : #else
676 : : #ifdef __BIG_ENDIAN
677 : : return true;
678 : : #else
679 : : return false;
680 : : #endif /* __BIG_ENDIAN */
681 : : #endif /* CONFIG_FB_FOREIGN_ENDIAN */
682 : : }
683 : :
684 : : /* drivers/video/fbsysfs.c */
685 : : extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
686 : : extern void framebuffer_release(struct fb_info *info);
687 : : extern int fb_init_device(struct fb_info *fb_info);
688 : : extern void fb_cleanup_device(struct fb_info *head);
689 : : extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
690 : :
691 : : /* drivers/video/fbmon.c */
692 : : #define FB_MAXTIMINGS 0
693 : : #define FB_VSYNCTIMINGS 1
694 : : #define FB_HSYNCTIMINGS 2
695 : : #define FB_DCLKTIMINGS 3
696 : : #define FB_IGNOREMON 0x100
697 : :
698 : : #define FB_MODE_IS_UNKNOWN 0
699 : : #define FB_MODE_IS_DETAILED 1
700 : : #define FB_MODE_IS_STANDARD 2
701 : : #define FB_MODE_IS_VESA 4
702 : : #define FB_MODE_IS_CALCULATED 8
703 : : #define FB_MODE_IS_FIRST 16
704 : : #define FB_MODE_IS_FROM_VAR 32
705 : :
706 : : extern int fbmon_dpms(const struct fb_info *fb_info);
707 : : extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
708 : : struct fb_info *info);
709 : : extern int fb_validate_mode(const struct fb_var_screeninfo *var,
710 : : struct fb_info *info);
711 : : extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
712 : : extern const unsigned char *fb_firmware_edid(struct device *device);
713 : : extern void fb_edid_to_monspecs(unsigned char *edid,
714 : : struct fb_monspecs *specs);
715 : : extern void fb_edid_add_monspecs(unsigned char *edid,
716 : : struct fb_monspecs *specs);
717 : : extern void fb_destroy_modedb(struct fb_videomode *modedb);
718 : : extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
719 : : extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
720 : :
721 : : extern int of_get_fb_videomode(struct device_node *np,
722 : : struct fb_videomode *fb,
723 : : int index);
724 : : extern int fb_videomode_from_videomode(const struct videomode *vm,
725 : : struct fb_videomode *fbmode);
726 : :
727 : : /* drivers/video/modedb.c */
728 : : #define VESA_MODEDB_SIZE 34
729 : : extern void fb_var_to_videomode(struct fb_videomode *mode,
730 : : const struct fb_var_screeninfo *var);
731 : : extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
732 : : const struct fb_videomode *mode);
733 : : extern int fb_mode_is_equal(const struct fb_videomode *mode1,
734 : : const struct fb_videomode *mode2);
735 : : extern int fb_add_videomode(const struct fb_videomode *mode,
736 : : struct list_head *head);
737 : : extern void fb_delete_videomode(const struct fb_videomode *mode,
738 : : struct list_head *head);
739 : : extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
740 : : struct list_head *head);
741 : : extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
742 : : struct list_head *head);
743 : : extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
744 : : struct list_head *head);
745 : : extern void fb_destroy_modelist(struct list_head *head);
746 : : extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
747 : : struct list_head *head);
748 : : extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
749 : : struct list_head *head);
750 : :
751 : : /* drivers/video/fbcmap.c */
752 : : extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
753 : : extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags);
754 : : extern void fb_dealloc_cmap(struct fb_cmap *cmap);
755 : : extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
756 : : extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
757 : : extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
758 : : extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
759 : : extern const struct fb_cmap *fb_default_cmap(int len);
760 : : extern void fb_invert_cmaps(void);
761 : :
762 : : struct fb_videomode {
763 : : const char *name; /* optional */
764 : : u32 refresh; /* optional */
765 : : u32 xres;
766 : : u32 yres;
767 : : u32 pixclock;
768 : : u32 left_margin;
769 : : u32 right_margin;
770 : : u32 upper_margin;
771 : : u32 lower_margin;
772 : : u32 hsync_len;
773 : : u32 vsync_len;
774 : : u32 sync;
775 : : u32 vmode;
776 : : u32 flag;
777 : : };
778 : :
779 : : extern const char *fb_mode_option;
780 : : extern const struct fb_videomode vesa_modes[];
781 : : extern const struct fb_videomode cea_modes[64];
782 : :
783 : : struct fb_modelist {
784 : : struct list_head list;
785 : : struct fb_videomode mode;
786 : : };
787 : :
788 : : extern int fb_find_mode(struct fb_var_screeninfo *var,
789 : : struct fb_info *info, const char *mode_option,
790 : : const struct fb_videomode *db,
791 : : unsigned int dbsize,
792 : : const struct fb_videomode *default_mode,
793 : : unsigned int default_bpp);
794 : :
795 : : /* Convenience logging macros */
796 : : #define fb_err(fb_info, fmt, ...) \
797 : : pr_err("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
798 : : #define fb_notice(info, fmt, ...) \
799 : : pr_notice("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
800 : : #define fb_warn(fb_info, fmt, ...) \
801 : : pr_warn("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
802 : : #define fb_info(fb_info, fmt, ...) \
803 : : pr_info("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
804 : : #define fb_dbg(fb_info, fmt, ...) \
805 : : pr_debug("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
806 : :
807 : : #endif /* _LINUX_FB_H */
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