commit 132e6482805afbc3e47575a64caf58d7c3aee39a
author Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com> Fri Nov 19 14:19:47 2021
committer Liam Girdwood <lgirdwood@gmail.com> Sun Nov 21 22:41:43 2021
tree e956db486e4da0d14116ac8b869bc2f958a755f8
parent 2c208b52fbbcefdf4e3ac62540b5941523037741

Math: Build library functions if enabled from Kconfig

This patch adds src/math/Kconfig with items CORDIC_TRIGONOMETRY_FIXED,
NUMBERS_GCD, NUMBERS_NORM, NUMBERS_VECTOR_FIND, MATH_DECIBELS, MATH_FFT,
MATH_FIR, and MATH_IIR_DF2T.

Configuration FIR and FFT were previously in src/audio/Kconfig but they
were moved to new math location for simplicity.

The build of trig.c was simplified by remove of unused UNIT_CORDIC_TEST
and CONFIG_CORDIC_TRIGONOMETRY_FIXED.

All but build details of numbers.c are handled by src/math/CMakeList.txt
if(CONFIG_X) additions. There was need to add "-DCONFIG_NUMBERS_x" into
target_compile_definitions() in test/cmocka/CMakeLists.txt because
the platforms those drop most features e.g. BYT would fail in test
case build.

Tone generator build is disabled for all platforms. It avoids select of
triginometric functions and saves RAM.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>