diff options
| author | Antonino Daplas <adaplas@hotpop.com> | 2004-08-22 22:51:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-08-22 22:51:45 -0700 |
| commit | 80f6ef4abc7f4583d95da92555a289887ff23d58 (patch) | |
| tree | 604f863a655312a2d46cff5c23cbde534f800853 /include/linux/fb.h | |
| parent | 9abf5f515a9d246e6154514b0b966505970cef3e (diff) | |
[PATCH] Video Mode Handling - Linked list of video modes
The patch adds support for a mode database in a linked list form.
Included in the patch are exportable functions that will:
a. convert struct fb_videomode to struct fb_var_screeninfo and vice versa
b. search the mode list for matching or best-fit modes
c. add/delete entries to the database
d. convert a mode array to a mode list
e. destroy the entire list
d. compare 2 modes
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/fb.h')
| -rw-r--r-- | include/linux/fb.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h index 14b34bee7d07..2ad372ba9abe 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -2,6 +2,7 @@ #define _LINUX_FB_H #include <asm/types.h> +#include <linux/list.h> /* Definitions of frame buffers */ @@ -711,6 +712,7 @@ extern void framebuffer_release(struct fb_info *info); #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_valid_timings(u_int pixclock, u_int htotal, u_int vtotal, const struct fb_info *fb_info); @@ -729,6 +731,22 @@ extern void fb_destroy_modedb(struct fb_videomode *modedb); /* drivers/video/modedb.c */ #define VESA_MODEDB_SIZE 34 extern const struct fb_videomode vesa_modes[]; +extern void fb_var_to_videomode(struct fb_videomode *mode, + struct fb_var_screeninfo *var); +extern void fb_videomode_to_var(struct fb_var_screeninfo *var, + struct fb_videomode *mode); +extern int fb_mode_is_equal(struct fb_videomode *mode1, + struct fb_videomode *mode2); +extern int fb_add_videomode(struct fb_videomode *mode, struct list_head *head); +extern void fb_delete_videomode(struct fb_videomode *mode, + struct list_head *head); +extern struct fb_videomode *fb_match_mode(struct fb_var_screeninfo *var, + struct list_head *head); +extern struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var, + struct list_head *head); +extern void fb_destroy_modelist(struct list_head *head); +extern void fb_videomode_to_modelist(struct fb_videomode *modedb, int num, + struct list_head *head); /* drivers/video/fbcmap.c */ extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp); @@ -757,6 +775,11 @@ struct fb_videomode { u32 flag; }; +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, |