diff options
Diffstat (limited to 'include/linux/fb.h')
| -rw-r--r-- | include/linux/fb.h | 57 |
1 files changed, 54 insertions, 3 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h index be913ec8716..dff7a728948 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -4,6 +4,8 @@ #include <asm/types.h> #include <linux/i2c.h> +struct dentry; + /* Definitions of frame buffers */ #define FB_MAJOR 29 @@ -525,12 +527,20 @@ struct fb_cursor_user { #define FB_EVENT_MODE_CHANGE_ALL 0x0B /* A software display blank change occured */ #define FB_EVENT_CONBLANK 0x0C +/* Get drawing requirements */ +#define FB_EVENT_GET_REQ 0x0D struct fb_event { struct fb_info *info; void *data; }; +struct fb_blit_caps { + u32 x; + u32 y; + u32 len; + u32 flags; +}; extern int fb_register_client(struct notifier_block *nb); extern int fb_unregister_client(struct notifier_block *nb); @@ -556,11 +566,25 @@ struct fb_pixmap { 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 (*deferred_io)(struct fb_info *info, struct list_head *pagelist); +}; +#endif /* * Frame buffer operations @@ -579,8 +603,10 @@ struct fb_ops { /* For framebuffers with strange non linear layouts or that do not * work with normal memory mapped access */ - ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos); - ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos); + 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 */ @@ -634,10 +660,13 @@ struct fb_ops { /* restore saved state */ void (*fb_restore_state)(struct fb_info *info); + + /* get capability given var */ + void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps, + struct fb_var_screeninfo *var); }; #ifdef CONFIG_FB_TILEBLITTING - #define FB_TILE_CURSOR_NONE 0 #define FB_TILE_CURSOR_UNDERLINE 1 #define FB_TILE_CURSOR_LOWER_THIRD 2 @@ -709,6 +738,8 @@ struct fb_tile_ops { /* 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 */ @@ -778,6 +809,10 @@ struct fb_info { 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 struct fb_ops *fbops; struct device *device; /* This is the parent */ @@ -879,6 +914,16 @@ 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); @@ -913,6 +958,12 @@ static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, } } +/* drivers/video/fb_defio.c */ +extern void fb_deferred_io_init(struct fb_info *info); +extern void fb_deferred_io_cleanup(struct fb_info *info); +extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry, + int datasync); + /* drivers/video/fbsysfs.c */ extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev); extern void framebuffer_release(struct fb_info *info); |