[libcamera-devel] [PATCH v4 0/4] Raspberry Pi: handle sensors more flexibly

[David Plowman]

Hi

Here's a version 4 of this patch set. The only difference over v3 is a
new penultimate patch that adds new V4L2 controls for informing the
sensor of the colour gains.

I've actually added a control for each of the 4 Bayer colour channels
even though I use only two of them. It feels like one of those things
where some sensor may eventually want the ones that I might have been
tempted to miss out, at which point why not just include them? Though
I still wonder if having both GREENR and GREENB is overkill, and just
GREEN would have sufficed. Any thoughts on that?

Once we're happy with the changes here I can apply them in the
Raspberry Pi Linux distribution, and then we can look to upstream them
too.

Thanks in advance

David

David Plowman (4):
  ipa: raspberrypi: Make CamHelper exposure methods virtual
  ipa: raspberrypi: Add CamHelper::ColourGainCode method
  include: linux: Add V4L2_CID_NOTIFY_GAIN_XXX controls
  ipa: raspberrypi: Update sensor's V4L2_CID_NOTIFY_GAIN_RED/BLUE
    controls when present

 include/libcamera/ipa/raspberrypi.mojom        |  1 +
 include/linux/v4l2-controls.h                  |  4 ++++
 src/ipa/raspberrypi/cam_helper.cpp             | 18 ++++++++++++++++++
 src/ipa/raspberrypi/cam_helper.hpp             |  8 +++++---
 src/ipa/raspberrypi/raspberrypi.cpp            | 13 +++++++++++++
 .../pipeline/raspberrypi/raspberrypi.cpp       | 10 ++++++++++
 6 files changed, 51 insertions(+), 3 deletions(-)

-- 
2.20.1