aboutsummaryrefslogtreecommitdiff
path: root/include/linux/fb.h
diff options
context:
space:
mode:
authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2011-12-13 14:02:26 +0100
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-12-19 20:07:13 +0000
commitfb21c2f42879c05c76ea9e249b6905fc729f8529 (patch)
tree93c4581f4f2947dae8ebd36eae0cf86f38ec93d3 /include/linux/fb.h
parentb779505282590289546aab9ffead4490fe195d40 (diff)
downloadlinux-linaro-stable-fb21c2f42879c05c76ea9e249b6905fc729f8529.tar.gz
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.h14
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 {