On 11/14/2016 05:20 PM, Ramesh Shanmugasundaram wrote:
> Hi Hans,
>
> Thanks for the review comments.
>
>> Subject: Re: [PATCH 3/5] media: Add new SDR formats SC16, SC18 & SC20
>>
>> 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?
>
> Shall I rename the formats as "PC16", "PC18" & "PC20"?
Sounds reasonable to me!
Hans
> For formats that do IQ IQ IQ... I shall use the regular formats "CUXX" when I
> introduce them.
>
> Thanks,
> Ramesh
>
>>
>> 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
>>> <[email protected]>
>>> ---
>>> 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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