[PATCH 0/5] ipa: rkisp1: Improve AGC (plumbing)

[Paul Elder]

This series depends on v1 of "Centralise Agc into libipa", and "ipa:
Move Pwl from Raspberry Pi to libipa".

This series adds support in the rkisp1 IPA for:
- reading histogram weights (metering modes) from tuning file
- setting digital gain
- expands luminance target from a scalar value to piecewise linear
  function, controlled by lux
- plumbs controls for setting metering mode, exposure mode, constraint
  mode, and frame duration

While at it, there is a fixup for Dan's series "Centralise Agc into
libipa". Dan, I suppose you could pick it up and squash it into your
series. I have it here so just so that I don't forget about it.

This series breaks the rkisp1 pipeline since it'll complain about
non-existant tuning files. There's a series coming imminently to address
that (though it'll only add a tuning file for imx335).

Paul Elder (5):
  ipa: rkisp1: agc: Read histogram weights from tuning file
  ipa: rkisp1: agc: Add digital gain
  fixup: ipa: rkisp1: Remove bespoke Agc functions
  ipa: libipa: agc: Change luminance target to piecewise linear function
  ipa: rkisp1: agc: Plumb mode-selection and frame duration controls

 src/ipa/ipu3/algorithms/agc.cpp       |   5 +-
 src/ipa/libipa/agc.cpp                |  22 +++-
 src/ipa/libipa/agc.h                  |   7 +-
 src/ipa/rkisp1/algorithms/agc.cpp     | 179 +++++++++++++++++++++++---
 src/ipa/rkisp1/algorithms/agc.h       |  11 ++
 src/ipa/rkisp1/algorithms/algorithm.h |   2 +
 src/ipa/rkisp1/ipa_context.h          |   7 +
 src/ipa/rkisp1/rkisp1.cpp             |  12 ++
 8 files changed, 213 insertions(+), 32 deletions(-)

-- 
2.39.2