| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LINUX_FB_H |
| #define _LINUX_FB_H |
| |
| #include <linux/kgdb.h> |
| #include <uapi/linux/fb.h> |
| |
| #define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user) |
| |
| #include <linux/fs.h> |
| #include <linux/init.h> |
| #include <linux/workqueue.h> |
| #include <linux/notifier.h> |
| #include <linux/list.h> |
| #include <linux/backlight.h> |
| #include <linux/slab.h> |
| #include <asm/io.h> |
| |
| struct vm_area_struct; |
| struct fb_info; |
| struct device; |
| struct file; |
| struct videomode; |
| struct device_node; |
| |
| /* 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 4 |
| struct 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 |
| */ |
| |
| /* The resolution of the passed in fb_info about to change */ |
| #define FB_EVENT_MODE_CHANGE 0x01 |
| |
| #ifdef CONFIG_GUMSTIX_AM200EPD |
| /* only used by mach-pxa/am200epd.c */ |
| #define FB_EVENT_FB_REGISTERED 0x05 |
| #define FB_EVENT_FB_UNREGISTERED 0x06 |
| #endif |
| |
| /* A display blank is requested */ |
| #define FB_EVENT_BLANK 0x09 |
| |
| struct fb_event { |
| struct fb_info *info; |
| void *data; |
| }; |
| |
| struct fb_blit_caps { |
| u32 x; |
| u32 y; |
| u32 len; |
| u32 flags; |
| }; |
| |
| #ifdef CONFIG_FB_NOTIFY |
| extern 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); |
| #else |
| static 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_* */ |
| u32 blit_x; /* supported bit block dimensions (1-32)*/ |
| u32 blit_y; /* Format: blit_x = 1 << (width - 1) */ |
| /* blit_y = 1 << (height - 1) */ |
| /* if 0, will be set to 0xffffffff (all)*/ |
| /* 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_IO |
| struct fb_deferred_io { |
| /* delay between mkwrite and deferred handler */ |
| unsigned long delay; |
| struct mutex lock; /* mutex that protects the page list */ |
| struct list_head pagelist; /* list of touched pages */ |
| /* callback */ |
| void (*first_io)(struct fb_info *info); |
| void (*deferred_io)(struct fb_info *info, struct list_head *pagelist); |
| }; |
| #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); |
| |
| /* called at KDB enter and leave time to prepare the console */ |
| int (*fb_debug_enter)(struct fb_info *info); |
| int (*fb_debug_leave)(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_DEFAULT 0 |
| #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 |
| |
| /* where the fb is a firmware driver, and can be replaced with a proper one */ |
| #define FBINFO_MISC_FIRMWARE 0x80000 |
| /* |
| * 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 { |
| atomic_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 work_struct queue; /* Framebuffer event queue */ |
| 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 */ |
| |
| #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 |
| #ifdef CONFIG_FB_DEFERRED_IO |
| struct delayed_work deferred_work; |
| struct fb_deferred_io *fbdefio; |
| #endif |
| |
| const struct fb_ops *fbops; |
| struct device *device; /* This is the parent */ |
| struct device *dev; /* This is this fb device */ |
| int class_flag; /* private sysfs flags */ |
| #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 */ |
| void *fbcon_par; /* fbcon use-only private area */ |
| /* From here on everything is device dependent */ |
| void *par; |
| /* we need the PCI or similar aperture base/size not |
| smem_start/size as smem_start may just be an object |
| allocated inside the aperture so may not actually overlap */ |
| struct apertures_struct { |
| unsigned int count; |
| struct aperture { |
| resource_size_t base; |
| resource_size_t size; |
| } ranges[0]; |
| } *apertures; |
| |
| bool skip_vt_switch; /* no VT switch on suspend/resume required */ |
| }; |
| |
| static inline struct apertures_struct *alloc_apertures(unsigned int max_num) { |
| struct apertures_struct *a; |
| |
| a = kzalloc(struct_size(a, ranges, max_num), GFP_KERNEL); |
| if (!a) |
| return NULL; |
| a->count = max_num; |
| return a; |
| } |
| |
| #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT |
| |
| /* 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 |
| |
| // This will go away |
| #if defined(__sparc__) |
| |
| /* We map all of our framebuffers such that big-endian accesses |
| * are what we want, so the following is sufficient. |
| */ |
| |
| // This will go away |
| #define fb_readb sbus_readb |
| #define fb_readw sbus_readw |
| #define fb_readl sbus_readl |
| #define fb_readq sbus_readq |
| #define fb_writeb sbus_writeb |
| #define fb_writew sbus_writew |
| #define fb_writel sbus_writel |
| #define fb_writeq sbus_writeq |
| #define fb_memset sbus_memset_io |
| #define fb_memcpy_fromfb sbus_memcpy_fromio |
| #define fb_memcpy_tofb sbus_memcpy_toio |
| |
| #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || \ |
| defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || \ |
| defined(__arm__) || defined(__aarch64__) |
| |
| #define fb_readb __raw_readb |
| #define fb_readw __raw_readw |
| #define fb_readl __raw_readl |
| #define fb_readq __raw_readq |
| #define fb_writeb __raw_writeb |
| #define fb_writew __raw_writew |
| #define fb_writel __raw_writel |
| #define fb_writeq __raw_writeq |
| #define fb_memset memset_io |
| #define fb_memcpy_fromfb memcpy_fromio |
| #define fb_memcpy_tofb memcpy_toio |
| |
| #else |
| |
| #define fb_readb(addr) (*(volatile u8 *) (addr)) |
| #define fb_readw(addr) (*(volatile u16 *) (addr)) |
| #define fb_readl(addr) (*(volatile u32 *) (addr)) |
| #define fb_readq(addr) (*(volatile u64 *) (addr)) |
| #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b)) |
| #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b)) |
| #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b)) |
| #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b)) |
| #define fb_memset memset |
| #define fb_memcpy_fromfb memcpy |
| #define fb_memcpy_tofb memcpy |
| |
| #endif |
| |
| #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); |
| 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); |
| /* |
| * Drawing operations where framebuffer is in system RAM |
| */ |
| 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); |
| |
| /* drivers/video/fbmem.c */ |
| extern int register_framebuffer(struct fb_info *fb_info); |
| extern void unregister_framebuffer(struct fb_info *fb_info); |
| extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, |
| const char *name); |
| extern int remove_conflicting_framebuffers(struct apertures_struct *a, |
| const char *name, bool primary); |
| extern int fb_prepare_logo(struct fb_info *fb_info, int rotate); |
| extern int fb_show_logo(struct fb_info *fb_info, int rotate); |
| extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size); |
| extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx, |
| u32 height, u32 shift_high, u32 shift_low, u32 mod); |
| extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height); |
| extern void fb_set_suspend(struct fb_info *info, int state); |
| 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); |
| |
| extern struct fb_info *registered_fb[FB_MAX]; |
| extern int num_registered_fb; |
| extern bool fb_center_logo; |
| extern int fb_logo_count; |
| extern struct class *fb_class; |
| |
| #define for_each_registered_fb(i) \ |
| for (i = 0; i < FB_MAX; i++) \ |
| if (!registered_fb[i]) {} else |
| |
| 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 void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, |
| 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; |
| } |
| } |
| |
| /* drivers/video/fb_defio.c */ |
| int fb_deferred_io_mmap(struct fb_info *info, struct vm_area_struct *vma); |
| extern void 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_cleanup(struct fb_info *info); |
| extern int fb_deferred_io_fsync(struct file *file, loff_t start, |
| loff_t end, int datasync); |
| |
| 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 */ |
| } |
| |
| /* drivers/video/fbsysfs.c */ |
| extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev); |
| extern void framebuffer_release(struct fb_info *info); |
| extern int fb_init_device(struct fb_info *fb_info); |
| extern void fb_cleanup_device(struct fb_info *head); |
| extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max); |
| |
| /* drivers/video/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); |
| |
| /* drivers/video/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); |
| |
| /* drivers/video/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 char *fb_mode_option; |
| 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); |
| |
| /* 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__) |
| |
| #endif /* _LINUX_FB_H */ |