lib: pwr_cal: Fix power indexing

The pwr_cal::get_gain() method previously held the incorrect assumption
that power values per frequency would be equidistant, i.e., be at the
same indices as the gain values. Due to the frequency-dependent nature
of the hardware, this is not a valid assumption (if that were the case,
frequency-dependent calibration would be unnecessary).

This changes get_gain() to not rely on that assumption. Note that it
requires doing some more rounding: The bilinear interpolation method
uses requires coordinates to be on a rectangular grid. This snaps the
power values onto a single coordinate.

0 files changed, 0 insertions, 0 deletions