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Message-ID: <c3b03fc7-100d-4c16-f561-b26969d13fea@collabora.com>
Date: Wed, 6 Nov 2019 20:26:11 -0300
From: Helen Koike <helen.koike@...labora.com>
To: Ezequiel Garcia <ezequiel@...labora.com>,
"Hans Verkuil (hansverk)" <hansverk@...co.com>,
"linux-rockchip@...ts.infradead.org"
<linux-rockchip@...ts.infradead.org>
Cc: "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
"eddie.cai.linux@...il.com" <eddie.cai.linux@...il.com>,
"mchehab@...nel.org" <mchehab@...nel.org>,
"heiko@...ech.de" <heiko@...ech.de>,
"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
"jeffy.chen@...k-chips.com" <jeffy.chen@...k-chips.com>,
"zyc@...k-chips.com" <zyc@...k-chips.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"tfiga@...omium.org" <tfiga@...omium.org>,
"hans.verkuil@...co.com" <hans.verkuil@...co.com>,
"laurent.pinchart@...asonboard.com"
<laurent.pinchart@...asonboard.com>,
"sakari.ailus@...ux.intel.com" <sakari.ailus@...ux.intel.com>,
"kernel@...labora.com" <kernel@...labora.com>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"zhengsq@...k-chips.com" <zhengsq@...k-chips.com>,
Jacob Chen <jacob2.chen@...k-chips.com>
Subject: Re: [PATCH v9 1/4] media: videodev2.h, v4l2-ioctl: add rkisp1 meta
buffer format
On 11/6/19 11:44 AM, Ezequiel Garcia wrote:
> Hi Hans, Helen:
>
> On Wed, 2019-11-06 at 09:30 -0300, Helen Koike wrote:
>>
>> On 11/6/19 10:22 AM, Hans Verkuil (hansverk) wrote:
>>> On 11/6/19 1:01 PM, Helen Koike wrote:
>>>> From: Shunqian Zheng <zhengsq@...k-chips.com>
>>>>
>>>> Add the Rockchip ISP1 specific processing parameter format
>>>> V4L2_META_FMT_RK_ISP1_PARAMS and metadata format
>>>> V4L2_META_FMT_RK_ISP1_STAT_3A for 3A.
>>>>
>>>> Signed-off-by: Shunqian Zheng <zhengsq@...k-chips.com>
>>>> Signed-off-by: Jacob Chen <jacob2.chen@...k-chips.com>
>>>> Acked-by: Hans Verkuil <hans.verkuil@...co.com>
>>>
>>> I acked this? It is missing documentation for these new formats.
>>
>> I think so https://www.spinics.net/lists/linux-rockchip/msg18999.html :)
>>
>> I'll update the docs and the fixes you pointed below.
>>
>> Thanks.
>> Helen
>>
>>>> [refactored for upstream]
>>>> Signed-off-by: Helen Koike <helen.koike@...labora.com>
>>>> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
>>>>
>>>> ---
>>>>
>>>> Changes in v9:
>>>> - Add reviewed-by tag from Laurent
>>>>
>>>> Changes in v8: None
>>>> Changes in v7:
>>>> - s/IPU3/RK_ISP1
>>>>
>>>> drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++
>>>> include/uapi/linux/videodev2.h | 4 ++++
>>>> 2 files changed, 6 insertions(+)
>>>>
>>>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
>>>> index 315ac12c3e0a..ade990554caf 100644
>>>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>>>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>>>> @@ -1341,6 +1341,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
>>>> case V4L2_META_FMT_UVC: descr = "UVC Payload Header Metadata"; break;
>>>> case V4L2_META_FMT_D4XX: descr = "Intel D4xx UVC Metadata"; break;
>>>> case V4L2_META_FMT_VIVID: descr = "Vivid Metadata"; break;
>>>> + case V4L2_META_FMT_RK_ISP1_PARAMS: descr = "Rockchip ISP1 3A params"; break;
>>>
>>> params -> Params
>>>
>>>> + case V4L2_META_FMT_RK_ISP1_STAT_3A: descr = "Rockchip ISP1 3A statistics"; break;
>>>
>>> statistics -> Statistics
>>>
>>>>
>>>> default:
>>>> /* Compressed formats */
>>>> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
>>>> index f98bbcced8ff..56798b09cd85 100644
>>>> --- a/include/uapi/linux/videodev2.h
>>>> +++ b/include/uapi/linux/videodev2.h
>
> Can we avoid touching videodev2.h, as we did for the stateless codec pixfmts?
I think it should be part of the uapi, as it is the metadata format used in the video output device.
I propose to leave it inside drivers/staging/media/rkisp1/uapi/rkisp1-config.h while the driver is in staging,
then we expose it later with a better documentation too. Make sense?
Thanks,
Helen
>
> Thanks,
> Ezequiel
>
>>>> @@ -762,6 +762,10 @@ struct v4l2_pix_format {
>>>> #define V4L2_META_FMT_D4XX v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
>>>> #define V4L2_META_FMT_VIVID v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Metadata */
>>>>
>>>> +/* Vendor specific - used for RK_ISP1 camera sub-system */
>>>> +#define V4L2_META_FMT_RK_ISP1_PARAMS v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 params */
>>>> +#define V4L2_META_FMT_RK_ISP1_STAT_3A v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A statistics */
>>>> +
>>>> /* priv field value to indicates that subsequent fields are valid. */
>>>> #define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe
>>>>
>>>>
>>>
>>> Regards,
>>>
>>> Hans
>>>
>
>
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