TPMS: Simplify half-band/translation filtering.
TPMS: Adjust scaling for intermediate values.
TPMS: Eliminate sqrtf, floats computing filter power difference.
TPMS: Add comments about dynamic range of variables.
UI: Fix SDIO call return variable types.
Clean up a bunch of sloppy type casting.
Touch: Remove excess arguments in function calls.
Add missing #include.
C++: Add extern "C" for ISR functions.
C++: Remove indices specified in array initialization.
Clean up uninitialized array warning.
Initialize all fields of structs.
Test: Add #include for LCD backlight test.
Specan: Reduce bandwidth to 10MHz.