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3ae5da5adc
Deleted (upstreamed): ath79/patches-5.10/921-serial-core-add-support-for-boot-console-with-arbitr.patch [1] bcm53xx/patches-5.10/033-v5.15-0012-ARM-dts-BCM5301X-Fix-memory-nodes-names.patch [2] lantiq/patches-5.10/0016-mtd-rawnand-xway-Keep-the-driver-compatible-with-on-.patch [3] lantiq/patches-5.10/0110-MIPS-lantiq-dma-add-small-delay-after-reset.patch [4] lantiq/patches-5.10/0111-MIPS-lantiq-dma-reset-correct-number-of-channel.patch [5] lantiq/patches-5.10/0112-MIPS-lantiq-dma-fix-burst-length-for-DEU.patch [6] Manually rebased: ipq806x/patches-5.10/0065-arm-override-compiler-flags.patch [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.80&id=47462c5e600fbaffd755cd13dedd80d04e41ff83 [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.80&id=2fde76df1885a6bec04317e457121326070450eb [3] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.80&id=9b366f5221d8aa64b22f35be137a5749326444ce [4] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.80&id=5af57ce8a6155fe3e4270d28d171abf8903bebc0 [5] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.80&id=b92a5df2c7adc79a57481445f67de0c1c716581f [6] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.80&id=6b72caabc47011d03f44064452b2c65e8ed18326 Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
95 lines
3.7 KiB
Diff
95 lines
3.7 KiB
Diff
From 4e9d4f3927e2e9b5fae5fefe4faf82d5ecfc86cd Mon Sep 17 00:00:00 2001
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From: Naushir Patuck <naush@raspberrypi.com>
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Date: Thu, 23 Apr 2020 10:20:26 +0100
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Subject: [PATCH] media: uapi: v4l2-core: Add ISP statistics output
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V4L2 fourcc type
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Add V4L2_META_FMT_BCM2835_ISP_STATS V4L2 format type.
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This new format will be used by the BCM2835 ISP device to return
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out ISP statistics for 3A.
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Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
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---
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.../userspace-api/media/v4l/meta-formats.rst | 1 +
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.../v4l/pixfmt-meta-bcm2835-isp-stats.rst | 41 +++++++++++++++++++
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drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
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include/uapi/linux/videodev2.h | 1 +
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4 files changed, 44 insertions(+)
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create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-meta-bcm2835-isp-stats.rst
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--- a/Documentation/userspace-api/media/v4l/meta-formats.rst
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+++ b/Documentation/userspace-api/media/v4l/meta-formats.rst
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@@ -12,6 +12,7 @@ These formats are used for the :ref:`met
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.. toctree::
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:maxdepth: 1
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+ pixfmt-meta-bcm2835-isp-stats
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pixfmt-meta-d4xx
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pixfmt-meta-intel-ipu3
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pixfmt-meta-rkisp1
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--- /dev/null
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+++ b/Documentation/userspace-api/media/v4l/pixfmt-meta-bcm2835-isp-stats.rst
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@@ -0,0 +1,41 @@
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+.. Permission is granted to copy, distribute and/or modify this
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+.. document under the terms of the GNU Free Documentation License,
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+.. Version 1.1 or any later version published by the Free Software
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+.. Foundation, with no Invariant Sections, no Front-Cover Texts
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+.. and no Back-Cover Texts. A copy of the license is included at
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+.. Documentation/media/uapi/fdl-appendix.rst.
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+..
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+.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
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+
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+.. _v4l2-meta-fmt-bcm2835-isp-stats:
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+
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+*****************************************
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+V4L2_META_FMT_BCM2835_ISP_STATS ('BSTA')
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+*****************************************
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+
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+BCM2835 ISP Statistics
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+
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+Description
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+===========
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+
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+The BCM2835 ISP hardware calculate image statistics for an input Bayer frame.
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+These statistics are obtained from the "bcm2835-isp0-capture3" device node
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+using the :c:type:`v4l2_meta_format` interface. They are formatted as described
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+by the :c:type:`bcm2835_isp_stats` structure below.
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+
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+.. code-block:: c
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+
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+ #define DEFAULT_AWB_REGIONS_X 16
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+ #define DEFAULT_AWB_REGIONS_Y 12
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+
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+ #define NUM_HISTOGRAMS 2
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+ #define NUM_HISTOGRAM_BINS 128
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+ #define AWB_REGIONS (DEFAULT_AWB_REGIONS_X * DEFAULT_AWB_REGIONS_Y)
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+ #define FLOATING_REGIONS 16
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+ #define AGC_REGIONS 16
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+ #define FOCUS_REGIONS 12
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+
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+.. kernel-doc:: include/uapi/linux/bcm2835-isp.h
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+ :functions: bcm2835_isp_stats_hist bcm2835_isp_stats_region
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+ bcm2835_isp_stats_focus bcm2835_isp_stats
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+
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--- a/drivers/media/v4l2-core/v4l2-ioctl.c
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+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
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@@ -1423,6 +1423,7 @@ static void v4l_fill_fmtdesc(struct v4l2
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case V4L2_META_FMT_D4XX: descr = "Intel D4xx UVC Metadata"; break;
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case V4L2_META_FMT_VIVID: descr = "Vivid Metadata"; break;
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case V4L2_META_FMT_SENSOR_DATA: descr = "Sensor Ancillary Metadata"; break;
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+ case V4L2_META_FMT_BCM2835_ISP_STATS: descr = "BCM2835 ISP Image Statistics"; break;
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default:
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/* Compressed formats */
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--- a/include/uapi/linux/videodev2.h
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+++ b/include/uapi/linux/videodev2.h
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@@ -779,6 +779,7 @@ struct v4l2_pix_format {
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#define V4L2_META_FMT_D4XX v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
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#define V4L2_META_FMT_VIVID v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Metadata */
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#define V4L2_META_FMT_SENSOR_DATA v4l2_fourcc('S', 'E', 'N', 'S') /* Sensor Ancillary metadata */
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+#define V4L2_META_FMT_BCM2835_ISP_STATS v4l2_fourcc('B', 'S', 'T', 'A') /* BCM2835 ISP image statistics output */
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/* priv field value to indicates that subsequent fields are valid. */
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#define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe
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