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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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#include <uapi/linux/fb.h>
#define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user)
#include <linux/mutex.h>#include <linux/printk.h>#include <linux/refcount.h>#include <linux/types.h>#include <linux/workqueue.h>
#include <asm/video.h>
struct backlight_device;struct device;struct device_node;struct fb_info;struct fbcon_par;struct file;struct i2c_adapter;struct inode;struct lcd_device;struct module;struct notifier_block;struct page;struct videomode;struct vm_area_struct;
/* Definitions below are used in the parsed monitor specs */#define FB_DPMS_ACTIVE_OFF 1#define FB_DPMS_SUSPEND 2#define FB_DPMS_STANDBY 4
#define FB_DISP_DDI 1#define FB_DISP_ANA_700_300 2#define FB_DISP_ANA_714_286 4#define FB_DISP_ANA_1000_400 8#define FB_DISP_ANA_700_000 16
#define FB_DISP_MONO 32#define FB_DISP_RGB 64#define FB_DISP_MULTI 128#define FB_DISP_UNKNOWN 256
#define FB_SIGNAL_NONE 0#define FB_SIGNAL_BLANK_BLANK 1#define FB_SIGNAL_SEPARATE 2#define FB_SIGNAL_COMPOSITE 4#define FB_SIGNAL_SYNC_ON_GREEN 8#define FB_SIGNAL_SERRATION_ON 16
#define FB_MISC_PRIM_COLOR 1#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */#define FB_MISC_HDMI 4struct fb_chroma { __u32 redx; /* in fraction of 1024 */ __u32 greenx; __u32 bluex; __u32 whitex; __u32 redy; __u32 greeny; __u32 bluey; __u32 whitey;};
struct fb_monspecs { struct fb_chroma chroma; struct fb_videomode *modedb; /* mode database */ __u8 manufacturer[4]; /* Manufacturer */ __u8 monitor[14]; /* Monitor String */ __u8 serial_no[14]; /* Serial Number */ __u8 ascii[14]; /* ? */ __u32 modedb_len; /* mode database length */ __u32 model; /* Monitor Model */ __u32 serial; /* Serial Number - Integer */ __u32 year; /* Year manufactured */ __u32 week; /* Week Manufactured */ __u32 hfmin; /* hfreq lower limit (Hz) */ __u32 hfmax; /* hfreq upper limit (Hz) */ __u32 dclkmin; /* pixelclock lower limit (Hz) */ __u32 dclkmax; /* pixelclock upper limit (Hz) */ __u16 input; /* display type - see FB_DISP_* */ __u16 dpms; /* DPMS support - see FB_DPMS_ */ __u16 signal; /* Signal Type - see FB_SIGNAL_* */ __u16 vfmin; /* vfreq lower limit (Hz) */ __u16 vfmax; /* vfreq upper limit (Hz) */ __u16 gamma; /* Gamma - in fractions of 100 */ __u16 gtf : 1; /* supports GTF */ __u16 misc; /* Misc flags - see FB_MISC_* */ __u8 version; /* EDID version... */ __u8 revision; /* ...and revision */ __u8 max_x; /* Maximum horizontal size (cm) */ __u8 max_y; /* Maximum vertical size (cm) */};
struct fb_cmap_user { __u32 start; /* First entry */ __u32 len; /* Number of entries */ __u16 __user *red; /* Red values */ __u16 __user *green; __u16 __user *blue; __u16 __user *transp; /* transparency, can be NULL */};
struct fb_image_user { __u32 dx; /* Where to place image */ __u32 dy; __u32 width; /* Size of image */ __u32 height; __u32 fg_color; /* Only used when a mono bitmap */ __u32 bg_color; __u8 depth; /* Depth of the image */ const char __user *data; /* Pointer to image data */ struct fb_cmap_user cmap; /* color map info */};
struct fb_cursor_user { __u16 set; /* what to set */ __u16 enable; /* cursor on/off */ __u16 rop; /* bitop operation */ const char __user *mask; /* cursor mask bits */ struct fbcurpos hot; /* cursor hot spot */ struct fb_image_user image; /* Cursor image */};
/* * Register/unregister for framebuffer events */
#ifdef CONFIG_GUMSTIX_AM200EPD/* only used by mach-pxa/am200epd.c */#define FB_EVENT_FB_REGISTERED 0x05#define FB_EVENT_FB_UNREGISTERED 0x06#endif
struct fb_event { struct fb_info *info; void *data;};
/* Enough for the VT console needs, see its max_font_width/height */#define FB_MAX_BLIT_WIDTH 64#define FB_MAX_BLIT_HEIGHT 128
struct fb_blit_caps { DECLARE_BITMAP(x, FB_MAX_BLIT_WIDTH); DECLARE_BITMAP(y, FB_MAX_BLIT_HEIGHT); u32 len; u32 flags;};
#ifdef CONFIG_FB_NOTIFYextern int fb_register_client(struct notifier_block *nb);extern int fb_unregister_client(struct notifier_block *nb);extern int fb_notifier_call_chain(unsigned long val, void *v);#elsestatic inline int fb_register_client(struct notifier_block *nb){ return 0;};
static inline int fb_unregister_client(struct notifier_block *nb){ return 0;};
static inline int fb_notifier_call_chain(unsigned long val, void *v){ return 0;};#endif
/* * Pixmap structure definition * * The purpose of this structure is to translate data * from the hardware independent format of fbdev to what * format the hardware needs. */
#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */#define FB_PIXMAP_IO 4 /* memory is iomapped */#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
struct fb_pixmap { u8 *addr; /* pointer to memory */ u32 size; /* size of buffer in bytes */ u32 offset; /* current offset to buffer */ u32 buf_align; /* byte alignment of each bitmap */ u32 scan_align; /* alignment per scanline */ u32 access_align; /* alignment per read/write (bits) */ u32 flags; /* see FB_PIXMAP_* */ /* supported bit block dimensions */ /* Format: test_bit(width - 1, blit_x) */ /* test_bit(height - 1, blit_y) */ /* if zero, will be set to full (all) */ DECLARE_BITMAP(blit_x, FB_MAX_BLIT_WIDTH); DECLARE_BITMAP(blit_y, FB_MAX_BLIT_HEIGHT); /* access methods */ void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size); void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);};
#ifdef CONFIG_FB_DEFERRED_IOstruct fb_deferred_io_pageref { struct page *page; unsigned long offset; /* private */ struct list_head list;};
struct fb_deferred_io { /* delay between mkwrite and deferred handler */ unsigned long delay; bool sort_pagereflist; /* sort pagelist by offset */ /* callback */ struct page *(*get_page)(struct fb_info *info, unsigned long offset); void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);};
struct fb_deferred_io_state;#endif
/* * Frame buffer operations * * LOCKING NOTE: those functions must _ALL_ be called with the console * semaphore held, this is the only suitable locking mechanism we have * in 2.6. Some may be called at interrupt time at this point though. * * The exception to this is the debug related hooks. Putting the fb * into a debug state (e.g. flipping to the kernel console) and restoring * it must be done in a lock-free manner, so low level drivers should * keep track of the initial console (if applicable) and may need to * perform direct, unlocked hardware writes in these hooks. */
struct fb_ops { /* open/release and usage marking */ struct module *owner; int (*fb_open)(struct fb_info *info, int user); int (*fb_release)(struct fb_info *info, int user);
/* For framebuffers with strange non linear layouts or that do not * work with normal memory mapped access */ ssize_t (*fb_read)(struct fb_info *info, char __user *buf, size_t count, loff_t *ppos); ssize_t (*fb_write)(struct fb_info *info, const char __user *buf, size_t count, loff_t *ppos);
/* checks var and eventually tweaks it to something supported, * DO NOT MODIFY PAR */ int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
/* set the video mode according to info->var */ int (*fb_set_par)(struct fb_info *info);
/* set color register */ int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *info);
/* set color registers in batch */ int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
/* blank display */ int (*fb_blank)(int blank, struct fb_info *info);
/* pan display */ int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
/* Draws a rectangle */ void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect); /* Copy data from area to another */ void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region); /* Draws a image to the display */ void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
/* Draws cursor */ int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
/* wait for blit idle, optional */ int (*fb_sync)(struct fb_info *info);
/* perform fb specific ioctl (optional) */ int (*fb_ioctl)(struct fb_info *info, unsigned int cmd, unsigned long arg);
/* Handle 32bit compat ioctl (optional) */ int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd, unsigned long arg);
/* perform fb specific mmap */ int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
/* get capability given var */ void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps, struct fb_var_screeninfo *var);
/* teardown any resources to do with this framebuffer */ void (*fb_destroy)(struct fb_info *info);};
#ifdef CONFIG_FB_TILEBLITTING#define FB_TILE_CURSOR_NONE 0#define FB_TILE_CURSOR_UNDERLINE 1#define FB_TILE_CURSOR_LOWER_THIRD 2#define FB_TILE_CURSOR_LOWER_HALF 3#define FB_TILE_CURSOR_TWO_THIRDS 4#define FB_TILE_CURSOR_BLOCK 5
struct fb_tilemap { __u32 width; /* width of each tile in pixels */ __u32 height; /* height of each tile in scanlines */ __u32 depth; /* color depth of each tile */ __u32 length; /* number of tiles in the map */ const __u8 *data; /* actual tile map: a bitmap array, packed to the nearest byte */};
struct fb_tilerect { __u32 sx; /* origin in the x-axis */ __u32 sy; /* origin in the y-axis */ __u32 width; /* number of tiles in the x-axis */ __u32 height; /* number of tiles in the y-axis */ __u32 index; /* what tile to use: index to tile map */ __u32 fg; /* foreground color */ __u32 bg; /* background color */ __u32 rop; /* raster operation */};
struct fb_tilearea { __u32 sx; /* source origin in the x-axis */ __u32 sy; /* source origin in the y-axis */ __u32 dx; /* destination origin in the x-axis */ __u32 dy; /* destination origin in the y-axis */ __u32 width; /* number of tiles in the x-axis */ __u32 height; /* number of tiles in the y-axis */};
struct fb_tileblit { __u32 sx; /* origin in the x-axis */ __u32 sy; /* origin in the y-axis */ __u32 width; /* number of tiles in the x-axis */ __u32 height; /* number of tiles in the y-axis */ __u32 fg; /* foreground color */ __u32 bg; /* background color */ __u32 length; /* number of tiles to draw */ __u32 *indices; /* array of indices to tile map */};
struct fb_tilecursor { __u32 sx; /* cursor position in the x-axis */ __u32 sy; /* cursor position in the y-axis */ __u32 mode; /* 0 = erase, 1 = draw */ __u32 shape; /* see FB_TILE_CURSOR_* */ __u32 fg; /* foreground color */ __u32 bg; /* background color */};
struct fb_tile_ops { /* set tile characteristics */ void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
/* all dimensions from hereon are in terms of tiles */
/* move a rectangular region of tiles from one area to another*/ void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area); /* fill a rectangular region with a tile */ void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect); /* copy an array of tiles */ void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit); /* cursor */ void (*fb_tilecursor)(struct fb_info *info, struct fb_tilecursor *cursor); /* get maximum length of the tile map */ int (*fb_get_tilemax)(struct fb_info *info);};#endif /* CONFIG_FB_TILEBLITTING */
/* FBINFO_* = fb_info.flags bit flags */#define FBINFO_HWACCEL_DISABLED 0x0002 /* When FBINFO_HWACCEL_DISABLED is set: * Hardware acceleration is turned off. Software implementations * of required functions (copyarea(), fillrect(), and imageblit()) * takes over; acceleration engine should be in a quiescent state */
/* hints */#define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
/* hardware supported ops *//* semantics: when a bit is set, it indicates that the operation is * accelerated by hardware. * required functions will still work even if the bit is not set. * optional functions may not even exist if the flag bit is not set. */#define FBINFO_HWACCEL_NONE 0x0000#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
/* A driver may set this flag to indicate that it does want a set_par to be * called every time when fbcon_switch is executed. The advantage is that with * this flag set you can really be sure that set_par is always called before * any of the functions dependent on the correct hardware state or altering * that state, even if you are using some broken X releases. The disadvantage * is that it introduces unwanted delays to every console switch if set_par * is slow. It is a good idea to try this flag in the drivers initialization * code whenever there is a bug report related to switching between X and the * framebuffer console. */#define FBINFO_MISC_ALWAYS_SETPAR 0x40000
/* * Host and GPU endianness differ. */#define FBINFO_FOREIGN_ENDIAN 0x100000/* * Big endian math. This is the same flags as above, but with different * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag * and host endianness. Drivers should not use this flag. */#define FBINFO_BE_MATH 0x100000/* * Hide smem_start in the FBIOGET_FSCREENINFO IOCTL. This is used by modern DRM * drivers to stop userspace from trying to share buffers behind the kernel's * back. Instead dma-buf based buffer sharing should be used. */#define FBINFO_HIDE_SMEM_START 0x200000
struct fb_info { refcount_t count; int node; int flags; /* * -1 by default, set to a FB_ROTATE_* value by the driver, if it knows * a lcd is not mounted upright and fbcon should rotate to compensate. */ int fbcon_rotate_hint; struct mutex lock; /* Lock for open/release/ioctl funcs */ struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */ struct fb_var_screeninfo var; /* Current var */ struct fb_fix_screeninfo fix; /* Current fix */ struct fb_monspecs monspecs; /* Current Monitor specs */ struct fb_pixmap pixmap; /* Image hardware mapper */ struct fb_pixmap sprite; /* Cursor hardware mapper */ struct fb_cmap cmap; /* Current cmap */ struct list_head modelist; /* mode list */ struct fb_videomode *mode; /* current mode */
int blank; /* current blanking; see FB_BLANK_ constants */
#if IS_ENABLED(CONFIG_FB_BACKLIGHT) /* assigned backlight device */ /* set before framebuffer registration, remove after unregister */ struct backlight_device *bl_dev;
/* Backlight level curve */ struct mutex bl_curve_mutex; u8 bl_curve[FB_BACKLIGHT_LEVELS];#endif
/* * Assigned LCD device; set before framebuffer * registration, remove after unregister */ struct lcd_device *lcd_dev;
#ifdef CONFIG_FB_DEFERRED_IO struct delayed_work deferred_work; struct fb_deferred_io *fbdefio; struct fb_deferred_io_state *fbdefio_state;#endif
const struct fb_ops *fbops; struct device *device; /* This is the parent */#if defined(CONFIG_FB_DEVICE) struct device *dev; /* This is this fb device */#endif#ifdef CONFIG_FB_TILEBLITTING struct fb_tile_ops *tileops; /* Tile Blitting */#endif union { char __iomem *screen_base; /* Virtual address */ char *screen_buffer; }; unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */ void *pseudo_palette; /* Fake palette of 16 colors */#define FBINFO_STATE_RUNNING 0#define FBINFO_STATE_SUSPENDED 1 u32 state; /* Hardware state i.e suspend */ struct fbcon_par *fbcon_par; /* fbcon use-only private area */ /* From here on everything is device dependent */ void *par;
bool skip_vt_switch; /* no VT switch on suspend/resume required */ bool skip_panic; /* Do not write to the fb after a panic */};
/* This will go away * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags * when it wants to turn the acceleration engine on. This is * really a separate operation, and should be modified via sysfs. * But for now, we leave it broken with the following define */#define STUPID_ACCELF_TEXT_SHIT
#define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)#define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \ (val) << (bits))#define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \ (val) >> (bits))
/* * `Generic' versions of the frame buffer device operations */
extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);extern int fb_blank(struct fb_info *info, int blank);
int fb_set_var_from_user(struct fb_info *info, struct fb_var_screeninfo *var);
/* * Helpers for framebuffers in I/O memory */
extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);extern ssize_t fb_io_read(struct fb_info *info, char __user *buf, size_t count, loff_t *ppos);extern ssize_t fb_io_write(struct fb_info *info, const char __user *buf, size_t count, loff_t *ppos);int fb_io_mmap(struct fb_info *info, struct vm_area_struct *vma);
#define __FB_DEFAULT_IOMEM_OPS_RDWR \ .fb_read = fb_io_read, \ .fb_write = fb_io_write
#define __FB_DEFAULT_IOMEM_OPS_DRAW \ .fb_fillrect = cfb_fillrect, \ .fb_copyarea = cfb_copyarea, \ .fb_imageblit = cfb_imageblit
#define __FB_DEFAULT_IOMEM_OPS_MMAP \ .fb_mmap = fb_io_mmap
#define FB_DEFAULT_IOMEM_OPS \ __FB_DEFAULT_IOMEM_OPS_RDWR, \ __FB_DEFAULT_IOMEM_OPS_DRAW, \ __FB_DEFAULT_IOMEM_OPS_MMAP
/* * Helpers for framebuffers in system memory */
extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf, size_t count, loff_t *ppos);extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf, size_t count, loff_t *ppos);
#define __FB_DEFAULT_SYSMEM_OPS_RDWR \ .fb_read = fb_sys_read, \ .fb_write = fb_sys_write
#define __FB_DEFAULT_SYSMEM_OPS_DRAW \ .fb_fillrect = sys_fillrect, \ .fb_copyarea = sys_copyarea, \ .fb_imageblit = sys_imageblit
/* * Helpers for framebuffers in DMA-able memory */
#define __FB_DEFAULT_DMAMEM_OPS_RDWR \ .fb_read = fb_sys_read, \ .fb_write = fb_sys_write
#define __FB_DEFAULT_DMAMEM_OPS_DRAW \ .fb_fillrect = sys_fillrect, \ .fb_copyarea = sys_copyarea, \ .fb_imageblit = sys_imageblit
/* fbmem.c */extern int register_framebuffer(struct fb_info *fb_info);extern void unregister_framebuffer(struct fb_info *fb_info);extern int devm_register_framebuffer(struct device *dev, struct fb_info *fb_info);extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, const u8 *src, u32 idx, u32 height, u32 shift_high, u32 shift_low, u32 mod);void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, const u8 *src, u32 s_pitch, u32 height);extern void fb_set_suspend(struct fb_info *info, int state);extern void fb_switch_outputs(struct fb_info *info);extern int fb_get_color_depth(struct fb_var_screeninfo *var, struct fb_fix_screeninfo *fix);extern int fb_get_options(const char *name, char **option);extern int fb_new_modelist(struct fb_info *info);
static inline void lock_fb_info(struct fb_info *info){ mutex_lock(&info->lock);}
static inline void unlock_fb_info(struct fb_info *info){ mutex_unlock(&info->lock);}
static inline struct device *dev_of_fbinfo(const struct fb_info *info){#ifdef CONFIG_FB_DEVICE return info->dev;#else return NULL;#endif}
static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, const u8 *src, u32 s_pitch, u32 height){ u32 i, j;
d_pitch -= s_pitch;
for (i = height; i--; ) { /* s_pitch is a few bytes at the most, memcpy is suboptimal */ for (j = 0; j < s_pitch; j++) *dst++ = *src++; dst += d_pitch; }}
/* fb_defio.c */int fb_deferred_io_mmap(struct fb_info *info, struct vm_area_struct *vma);extern int fb_deferred_io_init(struct fb_info *info);extern void fb_deferred_io_open(struct fb_info *info, struct inode *inode, struct file *file);extern void fb_deferred_io_release(struct fb_info *info);extern void fb_deferred_io_cleanup(struct fb_info *info);extern int fb_deferred_io_fsync(struct file *file, loff_t start, loff_t end, int datasync);
/* * Generate callbacks for deferred I/O */
#define __FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, __mode) \ static ssize_t __prefix ## _defio_read(struct fb_info *info, char __user *buf, \ size_t count, loff_t *ppos) \ { \ return fb_ ## __mode ## _read(info, buf, count, ppos); \ } \ static ssize_t __prefix ## _defio_write(struct fb_info *info, const char __user *buf, \ size_t count, loff_t *ppos) \ { \ unsigned long offset = *ppos; \ ssize_t ret = fb_ ## __mode ## _write(info, buf, count, ppos); \ if (ret > 0) \ __damage_range(info, offset, ret); \ return ret; \ }
#define __FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, __mode) \ static void __prefix ## _defio_fillrect(struct fb_info *info, \ const struct fb_fillrect *rect) \ { \ __mode ## _fillrect(info, rect); \ __damage_area(info, rect->dx, rect->dy, rect->width, rect->height); \ } \ static void __prefix ## _defio_copyarea(struct fb_info *info, \ const struct fb_copyarea *area) \ { \ __mode ## _copyarea(info, area); \ __damage_area(info, area->dx, area->dy, area->width, area->height); \ } \ static void __prefix ## _defio_imageblit(struct fb_info *info, \ const struct fb_image *image) \ { \ __mode ## _imageblit(info, image); \ __damage_area(info, image->dx, image->dy, image->width, image->height); \ }
#define FB_GEN_DEFAULT_DEFERRED_IOMEM_OPS(__prefix, __damage_range, __damage_area) \ __FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, io) \ __FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, cfb)
#define FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS(__prefix, __damage_range, __damage_area) \ __FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, sys) \ __FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, sys)
#define FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS(__prefix, __damage_range, __damage_area) \ __FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, sys) \ __FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, sys)
/* * Initializes struct fb_ops for deferred I/O. */
#define __FB_DEFAULT_DEFERRED_OPS_RDWR(__prefix) \ .fb_read = __prefix ## _defio_read, \ .fb_write = __prefix ## _defio_write
#define __FB_DEFAULT_DEFERRED_OPS_DRAW(__prefix) \ .fb_fillrect = __prefix ## _defio_fillrect, \ .fb_copyarea = __prefix ## _defio_copyarea, \ .fb_imageblit = __prefix ## _defio_imageblit
#define __FB_DEFAULT_DEFERRED_OPS_MMAP(__prefix) \ .fb_mmap = fb_deferred_io_mmap
#define FB_DEFAULT_DEFERRED_OPS(__prefix) \ __FB_DEFAULT_DEFERRED_OPS_RDWR(__prefix), \ __FB_DEFAULT_DEFERRED_OPS_DRAW(__prefix), \ __FB_DEFAULT_DEFERRED_OPS_MMAP(__prefix)
static inline bool fb_be_math(struct fb_info *info){#ifdef CONFIG_FB_FOREIGN_ENDIAN#if defined(CONFIG_FB_BOTH_ENDIAN) return info->flags & FBINFO_BE_MATH;#elif defined(CONFIG_FB_BIG_ENDIAN) return true;#elif defined(CONFIG_FB_LITTLE_ENDIAN) return false;#endif /* CONFIG_FB_BOTH_ENDIAN */#else#ifdef __BIG_ENDIAN return true;#else return false;#endif /* __BIG_ENDIAN */#endif /* CONFIG_FB_FOREIGN_ENDIAN */}
extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);extern void framebuffer_release(struct fb_info *info);extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
#if IS_ENABLED(CONFIG_FB_BACKLIGHT)struct backlight_device *fb_bl_device(struct fb_info *info);void fb_bl_notify_blank(struct fb_info *info, int old_blank);#elsestatic inline struct backlight_device *fb_bl_device(struct fb_info *info){ return NULL;}
static inline void fb_bl_notify_blank(struct fb_info *info, int old_blank){ }#endif
static inline struct lcd_device *fb_lcd_device(struct fb_info *info){ return info->lcd_dev;}
/* fbmon.c */#define FB_MAXTIMINGS 0#define FB_VSYNCTIMINGS 1#define FB_HSYNCTIMINGS 2#define FB_DCLKTIMINGS 3#define FB_IGNOREMON 0x100
#define FB_MODE_IS_UNKNOWN 0#define FB_MODE_IS_DETAILED 1#define FB_MODE_IS_STANDARD 2#define FB_MODE_IS_VESA 4#define FB_MODE_IS_CALCULATED 8#define FB_MODE_IS_FIRST 16#define FB_MODE_IS_FROM_VAR 32
extern int fbmon_dpms(const struct fb_info *fb_info);extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var, struct fb_info *info);extern int fb_validate_mode(const struct fb_var_screeninfo *var, struct fb_info *info);extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);extern const unsigned char *fb_firmware_edid(struct device *device);extern void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs);extern void fb_destroy_modedb(struct fb_videomode *modedb);extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
extern int of_get_fb_videomode(struct device_node *np, struct fb_videomode *fb, int index);extern int fb_videomode_from_videomode(const struct videomode *vm, struct fb_videomode *fbmode);
/* modedb.c */#define VESA_MODEDB_SIZE 43#define DMT_SIZE 0x50
extern void fb_var_to_videomode(struct fb_videomode *mode, const struct fb_var_screeninfo *var);extern void fb_videomode_to_var(struct fb_var_screeninfo *var, const struct fb_videomode *mode);extern int fb_mode_is_equal(const struct fb_videomode *mode1, const struct fb_videomode *mode2);extern int fb_add_videomode(const struct fb_videomode *mode, struct list_head *head);extern void fb_delete_videomode(const struct fb_videomode *mode, struct list_head *head);extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var, struct list_head *head);extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var, struct list_head *head);extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode, struct list_head *head);extern void fb_destroy_modelist(struct list_head *head);extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num, struct list_head *head);extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs, struct list_head *head);
/* fbcmap.c */extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags);extern void fb_dealloc_cmap(struct fb_cmap *cmap);extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);extern const struct fb_cmap *fb_default_cmap(int len);extern void fb_invert_cmaps(void);
struct fb_videomode { const char *name; /* optional */ u32 refresh; /* optional */ u32 xres; u32 yres; u32 pixclock; u32 left_margin; u32 right_margin; u32 upper_margin; u32 lower_margin; u32 hsync_len; u32 vsync_len; u32 sync; u32 vmode; u32 flag;};
struct dmt_videomode { u32 dmt_id; u32 std_2byte_code; u32 cvt_3byte_code; const struct fb_videomode *mode;};
extern const struct fb_videomode vesa_modes[];extern const struct dmt_videomode dmt_modes[];
struct fb_modelist { struct list_head list; struct fb_videomode mode;};
extern int fb_find_mode(struct fb_var_screeninfo *var, struct fb_info *info, const char *mode_option, const struct fb_videomode *db, unsigned int dbsize, const struct fb_videomode *default_mode, unsigned int default_bpp);
bool fb_modesetting_disabled(const char *drvname);
/* * Convenience logging macros */
#define fb_err(fb_info, fmt, ...) \ pr_err("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)#define fb_notice(info, fmt, ...) \ pr_notice("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)#define fb_warn(fb_info, fmt, ...) \ pr_warn("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)#define fb_info(fb_info, fmt, ...) \ pr_info("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)#define fb_dbg(fb_info, fmt, ...) \ pr_debug("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
#define fb_warn_once(fb_info, fmt, ...) \ pr_warn_once("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
#define fb_WARN_ONCE(fb_info, condition, fmt, ...) \ WARN_ONCE(condition, "fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)#define fb_WARN_ON_ONCE(fb_info, x) \ fb_WARN_ONCE(fb_info, (x), "%s", "fb_WARN_ON_ONCE(" __stringify(x) ")")
#endif /* _LINUX_FB_H */