mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 16:31:13 +00:00
95 lines
3.8 KiB
Diff
95 lines
3.8 KiB
Diff
|
From 6b4ccbece097b456c2fb910d7e74ac5e848dc699 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Naushir Patuck <naush@raspberrypi.com>
|
||
|
|
Date: Thu, 23 Apr 2020 10:20:26 +0100
|
||
|
|
Subject: [PATCH] media: uapi: v4l2-core: Add ISP statistics output
|
||
|
|
V4L2 fourcc type
|
||
|
|
|
||
|
|
Add V4L2_META_FMT_BCM2835_ISP_STATS V4L2 format type.
|
||
|
|
|
||
|
|
This new format will be used by the BCM2835 ISP device to return
|
||
|
|
out ISP statistics for 3A.
|
||
|
|
|
||
|
|
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
|
||
|
|
---
|
||
|
|
.../userspace-api/media/v4l/meta-formats.rst | 1 +
|
||
|
|
.../v4l/pixfmt-meta-bcm2835-isp-stats.rst | 41 +++++++++++++++++++
|
||
|
|
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
|
||
|
|
include/uapi/linux/videodev2.h | 1 +
|
||
|
|
4 files changed, 44 insertions(+)
|
||
|
|
create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-meta-bcm2835-isp-stats.rst
|
||
|
|
|
||
|
|
--- 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:`met
|
||
|
|
.. toctree::
|
||
|
|
:maxdepth: 1
|
||
|
|
|
||
|
|
+ pixfmt-meta-bcm2835-isp-stats
|
||
|
|
pixfmt-meta-d4xx
|
||
|
|
pixfmt-meta-intel-ipu3
|
||
|
|
pixfmt-meta-rkisp1
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/Documentation/userspace-api/media/v4l/pixfmt-meta-bcm2835-isp-stats.rst
|
||
|
|
@@ -0,0 +1,41 @@
|
||
|
|
+.. Permission is granted to copy, distribute and/or modify this
|
||
|
|
+.. document under the terms of the GNU Free Documentation License,
|
||
|
|
+.. Version 1.1 or any later version published by the Free Software
|
||
|
|
+.. Foundation, with no Invariant Sections, no Front-Cover Texts
|
||
|
|
+.. and no Back-Cover Texts. A copy of the license is included at
|
||
|
|
+.. Documentation/media/uapi/fdl-appendix.rst.
|
||
|
|
+..
|
||
|
|
+.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
|
||
|
|
+
|
||
|
|
+.. _v4l2-meta-fmt-bcm2835-isp-stats:
|
||
|
|
+
|
||
|
|
+*****************************************
|
||
|
|
+V4L2_META_FMT_BCM2835_ISP_STATS ('BSTA')
|
||
|
|
+*****************************************
|
||
|
|
+
|
||
|
|
+BCM2835 ISP Statistics
|
||
|
|
+
|
||
|
|
+Description
|
||
|
|
+===========
|
||
|
|
+
|
||
|
|
+The BCM2835 ISP hardware calculate image statistics for an input Bayer frame.
|
||
|
|
+These statistics are obtained from the "bcm2835-isp0-capture3" device node
|
||
|
|
+using the :c:type:`v4l2_meta_format` interface. They are formatted as described
|
||
|
|
+by the :c:type:`bcm2835_isp_stats` structure below.
|
||
|
|
+
|
||
|
|
+.. code-block:: c
|
||
|
|
+
|
||
|
|
+ #define DEFAULT_AWB_REGIONS_X 16
|
||
|
|
+ #define DEFAULT_AWB_REGIONS_Y 12
|
||
|
|
+
|
||
|
|
+ #define NUM_HISTOGRAMS 2
|
||
|
|
+ #define NUM_HISTOGRAM_BINS 128
|
||
|
|
+ #define AWB_REGIONS (DEFAULT_AWB_REGIONS_X * DEFAULT_AWB_REGIONS_Y)
|
||
|
|
+ #define FLOATING_REGIONS 16
|
||
|
|
+ #define AGC_REGIONS 16
|
||
|
|
+ #define FOCUS_REGIONS 12
|
||
|
|
+
|
||
|
|
+.. kernel-doc:: include/uapi/linux/bcm2835-isp.h
|
||
|
|
+ :functions: bcm2835_isp_stats_hist bcm2835_isp_stats_region
|
||
|
|
+ bcm2835_isp_stats_focus bcm2835_isp_stats
|
||
|
|
+
|
||
|
|
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
|
||
|
|
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
|
||
|
|
@@ -1390,6 +1390,7 @@ static void v4l_fill_fmtdesc(struct v4l2
|
||
|
|
case V4L2_META_FMT_RK_ISP1_PARAMS: descr = "Rockchip ISP1 3A Parameters"; break;
|
||
|
|
case V4L2_META_FMT_RK_ISP1_STAT_3A: descr = "Rockchip ISP1 3A Statistics"; break;
|
||
|
|
case V4L2_META_FMT_SENSOR_DATA: descr = "Sensor Ancillary Metadata"; break;
|
||
|
|
+ case V4L2_META_FMT_BCM2835_ISP_STATS: descr = "BCM2835 ISP Image Statistics"; break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
/* Compressed formats */
|
||
|
|
--- a/include/uapi/linux/videodev2.h
|
||
|
|
+++ b/include/uapi/linux/videodev2.h
|
||
|
|
@@ -776,6 +776,7 @@ 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 */
|
||
|
|
#define V4L2_META_FMT_SENSOR_DATA v4l2_fourcc('S', 'E', 'N', 'S') /* Sensor Ancillary metadata */
|
||
|
|
+#define V4L2_META_FMT_BCM2835_ISP_STATS v4l2_fourcc('B', 'S', 'T', 'A') /* BCM2835 ISP image statistics output */
|
||
|
|
|
||
|
|
/* Vendor specific - used for RK_ISP1 camera sub-system */
|
||
|
|
#define V4L2_META_FMT_RK_ISP1_PARAMS v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 3A Parameters */
|