On 11/09/2016 04:44 PM, Ramesh Shanmugasundaram wrote:
> This patch adds support for the three new SDR formats. These formats
> were prefixed with "sliced" indicating I data constitutes the top half and
> Q data constitutes the bottom half of the received buffer.
The standard terminology for video formats is "planar". I am leaning towards
using that here as well.
Any opinions on this?
Hans
>
> V4L2_SDR_FMT_SCU16BE - 14-bit complex (I & Q) unsigned big-endian sample
> inside 16-bit. V4L2 FourCC: SC16
>
> V4L2_SDR_FMT_SCU18BE - 16-bit complex (I & Q) unsigned big-endian sample
> inside 18-bit. V4L2 FourCC: SC18
>
> V4L2_SDR_FMT_SCU20BE - 18-bit complex (I & Q) unsigned big-endian sample
> inside 20-bit. V4L2 FourCC: SC20
>
> Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@xxxxxxxxxxxxxx>
> ---
> drivers/media/v4l2-core/v4l2-ioctl.c | 3 +++
> include/uapi/linux/videodev2.h | 3 +++
> 2 files changed, 6 insertions(+)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index 181381d..d36b386 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1207,6 +1207,9 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
> case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
> case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
> case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
> + case V4L2_SDR_FMT_SCU16BE: descr = "Sliced Complex U16BE"; break;
> + case V4L2_SDR_FMT_SCU18BE: descr = "Sliced Complex U18BE"; break;
> + case V4L2_SDR_FMT_SCU20BE: descr = "Sliced Complex U20BE"; break;
> case V4L2_TCH_FMT_DELTA_TD16: descr = "16-bit signed deltas"; break;
> case V4L2_TCH_FMT_DELTA_TD08: descr = "8-bit signed deltas"; break;
> case V4L2_TCH_FMT_TU16: descr = "16-bit unsigned touch data"; break;
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 4364ce6..34a9c30 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -666,6 +666,9 @@ struct v4l2_pix_format {
> #define V4L2_SDR_FMT_CS8 v4l2_fourcc('C', 'S', '0', '8') /* complex s8 */
> #define V4L2_SDR_FMT_CS14LE v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */
> #define V4L2_SDR_FMT_RU12LE v4l2_fourcc('R', 'U', '1', '2') /* real u12le */
> +#define V4L2_SDR_FMT_SCU16BE v4l2_fourcc('S', 'C', '1', '6') /* sliced complex u16be */
> +#define V4L2_SDR_FMT_SCU18BE v4l2_fourcc('S', 'C', '1', '8') /* sliced complex u18be */
> +#define V4L2_SDR_FMT_SCU20BE v4l2_fourcc('S', 'C', '2', '0') /* sliced complex u20be */
>
> /* Touch formats - used for Touch devices */
> #define V4L2_TCH_FMT_DELTA_TD16 v4l2_fourcc('T', 'D', '1', '6') /* 16-bit signed deltas */
>
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