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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 | 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 | d_pitch -= s_pitch; |
647 | |
648 | for (i = height; i--; ) { |
649 | /* s_pitch is a few bytes at the most, memcpy is suboptimal */ |
650 | for (j = 0; j < s_pitch; j++) |
651 | *dst++ = *src++; |
652 | 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 | #endif /* _LINUX_FB_H */ |
796 |
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