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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-12-13 14:02:26 +0100 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-12-19 20:07:13 +0000 |
| commit | fb21c2f42879c05c76ea9e249b6905fc729f8529 (patch) | |
| tree | 93c4581f4f2947dae8ebd36eae0cf86f38ec93d3 /include/linux/fb.h | |
| parent | b779505282590289546aab9ffead4490fe195d40 (diff) | |
| download | linux-exynos-fb21c2f42879c05c76ea9e249b6905fc729f8529.tar.gz linux-exynos-fb21c2f42879c05c76ea9e249b6905fc729f8529.tar.bz2 linux-exynos-fb21c2f42879c05c76ea9e249b6905fc729f8529.zip | |
fbdev: Add FOURCC-based format configuration API
This API will be used to support YUV frame buffer formats in a standard
way.
Last but not least, create a much needed fbdev API documentation and
document the format setting APIs.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'include/linux/fb.h')
| -rw-r--r-- | include/linux/fb.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h index 1d6836c498dd..c18122f40543 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -45,6 +45,7 @@ #define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */ #define FB_TYPE_TEXT 3 /* Text/attributes */ #define FB_TYPE_VGA_PLANES 4 /* EGA/VGA planes */ +#define FB_TYPE_FOURCC 5 /* Type identified by a V4L2 FOURCC */ #define FB_AUX_TEXT_MDA 0 /* Monochrome text */ #define FB_AUX_TEXT_CGA 1 /* CGA/EGA/VGA Color text */ @@ -69,6 +70,7 @@ #define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */ #define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */ #define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */ +#define FB_VISUAL_FOURCC 6 /* Visual identified by a V4L2 FOURCC */ #define FB_ACCEL_NONE 0 /* no hardware accelerator */ #define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */ @@ -154,6 +156,8 @@ #define FB_ACCEL_PUV3_UNIGFX 0xa0 /* PKUnity-v3 Unigfx */ +#define FB_CAP_FOURCC 1 /* Device supports FOURCC-based formats */ + struct fb_fix_screeninfo { char id[16]; /* identification string eg "TT Builtin" */ unsigned long smem_start; /* Start of frame buffer mem */ @@ -171,7 +175,8 @@ struct fb_fix_screeninfo { __u32 mmio_len; /* Length of Memory Mapped I/O */ __u32 accel; /* Indicate to driver which */ /* specific chip/card we have */ - __u16 reserved[3]; /* Reserved for future compatibility */ + __u16 capabilities; /* see FB_CAP_* */ + __u16 reserved[2]; /* Reserved for future compatibility */ }; /* Interpretation of offset for color fields: All offsets are from the right, @@ -246,8 +251,8 @@ struct fb_var_screeninfo { __u32 yoffset; /* resolution */ __u32 bits_per_pixel; /* guess what */ - __u32 grayscale; /* != 0 Graylevels instead of colors */ - + __u32 grayscale; /* 0 = color, 1 = grayscale, */ + /* >1 = FOURCC */ struct fb_bitfield red; /* bitfield in fb mem if true color, */ struct fb_bitfield green; /* else only length is significant */ struct fb_bitfield blue; @@ -273,7 +278,8 @@ struct fb_var_screeninfo { __u32 sync; /* see FB_SYNC_* */ __u32 vmode; /* see FB_VMODE_* */ __u32 rotate; /* angle we rotate counter clockwise */ - __u32 reserved[5]; /* Reserved for future compatibility */ + __u32 colorspace; /* colorspace for FOURCC-based modes */ + __u32 reserved[4]; /* Reserved for future compatibility */ }; struct fb_cmap { |