From: Keke Li <keke.li@xxxxxxxxxxx>
Add the file 'metafmt-c3-isp.rst' that documents
the meta format of c3-isp.
Signed-off-by: Keke Li <keke.li@xxxxxxxxxxx>
---
.../userspace-api/media/v4l/meta-formats.rst | 1 +
.../userspace-api/media/v4l/metafmt-c3-isp.rst | 39 ++++++++++++++++++++++
2 files changed, 40 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/meta-formats.rst b/Documentation/userspace-api/media/v4l/meta-formats.rst
index c6e56b5888bc..3a420747f6e7 100644
--- a/Documentation/userspace-api/media/v4l/meta-formats.rst
+++ b/Documentation/userspace-api/media/v4l/meta-formats.rst
@@ -12,6 +12,7 @@ These formats are used for the :ref:`metadata` interface only.
.. toctree::
:maxdepth: 1
+ metafmt-c3-isp
metafmt-d4xx
metafmt-generic
metafmt-intel-ipu3
diff --git a/Documentation/userspace-api/media/v4l/metafmt-c3-isp.rst b/Documentation/userspace-api/media/v4l/metafmt-c3-isp.rst
new file mode 100644
index 000000000000..bbaf3542c1ca
--- /dev/null
+++ b/Documentation/userspace-api/media/v4l/metafmt-c3-isp.rst
@@ -0,0 +1,39 @@
+.. SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+
+.. _v4l2-meta-fmt-c3isp-stats:
+.. _v4l2-meta-fmt-c3isp-params:
+
+***********************************************************************
+V4L2_META_FMT_C3ISP_STATS ('CSTS'), V4L2_META_FMT_C3ISP_PARAMS ('CPRM')
+***********************************************************************
+
+.. c3_isp_stats_info
+
+3A statistics
+=============
+
+The C3 ISP can collect different statistics over an input Bayer frame.
+Those statistics are obtained from the "isp-stats" metadata capture video nodes,
+using the :c:type:`v4l2_meta_format` interface.
+They are formatted as described by the :c:type:`c3_isp_stats_info` structure.
+
+The statistics collected are Auto-white balance,
+Auto-exposure and Auto-focus information.
+
+.. c3_isp_params_buffer
+
+Pipeline parameters
+===================
+
+The pipeline parameters are passed to the "isp-params" metadata
+output video nodes, using the :c:type:`v4l2_meta_format` interface. They are
+formatted as described by the :c:type:`c3_isp_params_buffer` structure.
+
+The structure c3_isp_params_buffer includes the necessary parameters
+required by the ISP.
+These parameters are written to the ISP hardware.
+
+Amlogic C3 ISP uAPI data types
+===============================
+
+.. kernel-doc:: drivers/media/platform/amlogic/c3-isp/include/uapi/c3-isp-config.h
--
2.45.2
