linux-kernel - [PATCH 0/3] atomisp: add support for enum frame rate and sizes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 11 Nov 2021 17:27:55 +0000
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Bhaskar Chowdhury <unixbhaskar@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Deepak R Varma <drv@...lo.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Hans de Goede <hdegoede@...hat.com>,
        Ingo Molnar <mingo@...nel.org>,
        Kaixu Xia <kaixuxia@...cent.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Tsuchiya Yuto <kitakar@...il.com>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev
Subject: [PATCH 0/3] atomisp: add support for enum frame rate and sizes

Adding support for those two ioctls are trivial, and allow testing
different resolutions with the driver.

Together with some improvements I made at camorama, it is now
possible to change the atomisp sensor's resolution at the GUI.

Talking about camorama, I also added there an option to disable
the Gtk cairo_scale() calls. On my tests here, placing ov2680 on
its maximum resolution, I'm getting a framerate of 26 fps, which
sounds reasonable, as the maximum would be 30fps, and I'm not
using daylight.

When letting cairo_scale() to run, the rate reduces to 8 fps, meaning 
that Gtk is not using GPU acceleration.

Funny enough, when resolution is lower, atomisp is giving a very
bad framerate (around 3fps, even with the scaler disabled).

This is a very weird result, probably indicating some problems inside
the driver. That requires further investigation.

Mauro Carvalho Chehab (3):
  media: atomisp-ov2680: implement enum frame intervals
  media: atomisp-ov2680: adjust the maximum frame rate
  media: atomisp: implement enum framesize/frameinterval

 .../media/atomisp/i2c/atomisp-ov2680.c        | 21 ++++++++
 drivers/staging/media/atomisp/i2c/ov2680.h    | 14 ++---
 .../staging/media/atomisp/pci/atomisp_ioctl.c | 53 +++++++++++++++++++
 3 files changed, 81 insertions(+), 7 deletions(-)

-- 
2.33.1