2ed7bba5e7
Mirror the EXT_PWR_DETECT pattern: replace runtime static variables (ext_chrg_detect_mode, ext_chrg_detect_value) with compile-time macros. Auto-infer EXT_CHRG_DETECT_VALUE from EXT_CHRG_DETECT_MODE when the mode is INPUT_PULLUP (→ LOW) or INPUT_PULLDOWN (→ HIGH); default to HIGH. This fixes inverted polarity on variants that define EXT_CHRG_DETECT_MODE INPUT_PULLUP without an explicit EXT_CHRG_DETECT_VALUE (e.g. russell): previously the runtime default of HIGH caused isCharging() to return the opposite of the correct value. With auto-inference the correct LOW active level is now derived at compile time. Remove the now-redundant EXT_CHRG_DETECT_VALUE HIGH from ELECROW-ThinkNode-M4 variant.h since HIGH is the inferred default. Assisted-by: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: Andrew Yong <noreply@example.com> Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>