From: Vidya Srinivas vidya.srinivas@intel.com
The following pixel formats are packed format that follows 4:2:2 chroma sampling. For memory represenation each component is allocated 16 bits each. Thus each pixel occupies a DWORD.
Y210:Valid data occupies MSB 10 bits. LSB 6 bits are filled with zeroes. Y212:Valid data occupies MSB 12 bits. LSB 4 bits are filled with zeroes. Y216:Valid data occupies 16 bits, doesn't require any padding bits.
First 16 bits stores the Y value and the next 16 bits stores one of the chroma samples alternatively. The first luma sample will be accompanied by first U sample and second luma sample is accompanied by the first V sample.
v2: is_yuv setted to true (mahesh) different order of yuv samples (mahesh): still update from hardware team pending change in comment (alexandru)
Signed-off-by: Swati Sharma swati2.sharma@intel.com Signed-off-by: Vidya Srinivas vidya.srinivas@intel.com --- drivers/gpu/drm/drm_fourcc.c | 3 +++ include/uapi/drm/drm_fourcc.h | 8 ++++++++ 2 files changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index be1d6aa..143c26a 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -190,6 +190,9 @@ const struct drm_format_info *__drm_format_info(u32 format) { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true }, { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true }, { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true }, + { .format = DRM_FORMAT_Y210, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true }, + { .format = DRM_FORMAT_Y212, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true }, + { .format = DRM_FORMAT_Y216, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true }, };
unsigned int i; diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 139632b..95118cc 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -153,6 +153,14 @@ #define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
/* + * Y2xx indicate for each component, xx valid data occupy msb + * 16-xx padding occupy lsb + */ +#define DRM_FORMAT_Y210 fourcc_code('Y', '2', '1', '0') /* [63:0] Y0:Cb0:Y1:Cr1 10:10:10:10 little endian */ +#define DRM_FORMAT_Y212 fourcc_code('Y', '2', '1', '2') /* [63:0] Y0:Cb0:Y1:Cr1 12:12:12:12 little endian */ +#define DRM_FORMAT_Y216 fourcc_code('Y', '2', '1', '6') /* [63:0] Y0:Cb0:Y1:Cr1 16:16:16:16 little endian */ + +/* * 2 plane RGB + A * index 0 = RGB plane, same format as the corresponding non _A8 format has * index 1 = A plane, [7:0] A