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From: Jacopo Mondi <jacopo@jmondi.org>
To: linux-media@vger.kernel.org
Cc: Jacopo Mondi <jacopo@jmondi.org>,
	naush@raspberrypi.com, dave.stevenson@raspberrypi.com,
	laurent.pinchart@ideasonboard.com,
	kieran.bingham@ideasonboard.com, niklas.soderlund@ragnatech.se,
	hverkuil@xs4all.nl, sakari.ailus@iki.fi, nsaenzjulienne@suse.de,
	mchehab+huawei@kernel.org
Subject: [PATCH v3 2/5] media: uapi: Add MEDIA_BUS_FMT_SENSOR_DATA media bus format
Date: Mon,  2 Nov 2020 17:52:55 +0100	[thread overview]
Message-ID: <20201102165258.408049-3-jacopo@jmondi.org> (raw)
In-Reply-To: <20201102165258.408049-1-jacopo@jmondi.org>

From: Naushir Patuck <naush@raspberrypi.com>

This patch adds MEDIA_BUS_FMT_SENSOR_DATA used by the bcm2835-unicam
driver to support CSI-2 embedded data streams from camera sensors.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
---
 .../media/v4l/subdev-formats.rst              | 32 +++++++++++++++++++
 include/uapi/linux/media-bus-format.h         |  3 ++
 2 files changed, 35 insertions(+)

diff --git a/Documentation/userspace-api/media/v4l/subdev-formats.rst b/Documentation/userspace-api/media/v4l/subdev-formats.rst
index c9b7bb3ca089d..113d3ac9272ac 100644
--- a/Documentation/userspace-api/media/v4l/subdev-formats.rst
+++ b/Documentation/userspace-api/media/v4l/subdev-formats.rst
@@ -7899,3 +7899,35 @@ formats.
       - 0x5001
       - Interleaved raw UYVY and JPEG image format with embedded meta-data
 	used by Samsung S3C73MX camera sensors.
+
+
+
+.. _v4l2-mbus-sensor-data:
+
+Sensor Ancillary Metadata Formats
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This section lists ancillary data generated by a camera sensor and
+transmitted over a stream on the camera bus.
+
+The following table lists the existing sensor ancillary metadata formats:
+
+
+.. _v4l2-mbus-pixelcode-sensor-metadata:
+
+.. tabularcolumns:: |p{8.0cm}|p{1.4cm}|p{7.7cm}|
+
+.. flat-table:: Sensor ancillary metadata formats
+    :header-rows:  1
+    :stub-columns: 0
+
+    * - Identifier
+      - Code
+      - Comments
+    * .. _MEDIA_BUS_FMT_SENSOR_DATA:
+
+      - MEDIA_BUS_FMT_SENSOR_DATA
+      - 0x7001
+      - Sensor vendor specific ancillary metadata. Some vendors follow a generic
+        CSI-2/SMIA embedded data format as described in the `CSI-2 specification.
+	<https://mipi.org/specifications/csi-2>`_
diff --git a/include/uapi/linux/media-bus-format.h b/include/uapi/linux/media-bus-format.h
index 84fa53ffb13fc..3c2848e91c1b2 100644
--- a/include/uapi/linux/media-bus-format.h
+++ b/include/uapi/linux/media-bus-format.h
@@ -156,4 +156,7 @@
 /* HSV - next is	0x6002 */
 #define MEDIA_BUS_FMT_AHSV8888_1X32		0x6001
 
+/* Sensor ancillary metadata formats - next is 0x7002 */
+#define MEDIA_BUS_FMT_SENSOR_DATA		0x7001
+
 #endif /* __LINUX_MEDIA_BUS_FORMAT_H */
-- 
2.29.1


  parent reply	other threads:[~2020-11-02 16:53 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-02 16:52 [PATCH v3 0/5] media: staging: Add bcm2835-unicam driver Jacopo Mondi
2020-11-02 16:52 ` [PATCH v3 1/5] media: uapi: v4l2-core: Add sensor ancillary data V4L2 fourcc type Jacopo Mondi
2020-11-06  9:23   ` Hans Verkuil
2020-11-06 11:26     ` Dave Stevenson
2020-11-06 11:39       ` Hans Verkuil
2020-11-10 11:26         ` Jacopo Mondi
2020-11-11 17:19   ` Sakari Ailus
2020-11-12  9:38     ` Jacopo Mondi
2020-11-02 16:52 ` Jacopo Mondi [this message]
2020-11-04 11:12   ` [PATCH v3 2/5] media: uapi: Add MEDIA_BUS_FMT_SENSOR_DATA media bus format Dafna Hirschfeld
2020-11-06  9:26   ` Hans Verkuil
2020-11-02 16:52 ` [PATCH v3 3/5] dt-bindings: media: Document BCM283x CSI2/CCP2 receiver Jacopo Mondi
2020-11-02 16:52 ` [PATCH v3 4/5] media: bcm2835-unicam: Driver for CCP2/CSI2 camera interface Jacopo Mondi
2020-11-04 12:14   ` Dafna Hirschfeld
2020-11-04 14:35     ` Dave Stevenson
2020-11-06 10:16   ` Hans Verkuil
2020-11-02 16:52 ` [PATCH v3 5/5] ARM: dts: bcm2711: Add Unicam DT nodes Jacopo Mondi
2020-11-02 17:03 ` [PATCH v3 0/5] media: staging: Add bcm2835-unicam driver Dave Stevenson
2020-11-06  9:50 ` Hans Verkuil
2020-11-06  9:52   ` Hans Verkuil

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