linux-kernel - [PATCH v9 1/4] media: videodev2.h, v4l2-ioctl: add rkisp1 meta buffer format

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Message-Id: <20191106120132.6876-2-helen.koike@collabora.com>
Date:   Wed,  6 Nov 2019 09:01:29 -0300
From:   Helen Koike <helen.koike@...labora.com>
To:     linux-rockchip@...ts.infradead.org
Cc:     linux-media@...r.kernel.org, eddie.cai.linux@...il.com,
        mchehab@...nel.org, heiko@...ech.de, gregkh@...uxfoundation.org,
        jeffy.chen@...k-chips.com, zyc@...k-chips.com,
        linux-kernel@...r.kernel.org, tfiga@...omium.org,
        hans.verkuil@...co.com, laurent.pinchart@...asonboard.com,
        sakari.ailus@...ux.intel.com, kernel@...labora.com,
        ezequiel@...labora.com, linux-arm-kernel@...ts.infradead.org,
        zhengsq@...k-chips.com, Jacob Chen <jacob2.chen@...k-chips.com>,
        Helen Koike <helen.koike@...labora.com>
Subject: [PATCH v9 1/4] media: videodev2.h, v4l2-ioctl: add rkisp1 meta buffer format

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>
[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;
+	case V4L2_META_FMT_RK_ISP1_STAT_3A:	descr = "Rockchip ISP1 3A statistics"; break;
 
 	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
@@ -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
 
-- 
2.22.0