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3 Commits

Author SHA1 Message Date
Kumar Gala
a1b77fd589 zephyr: replace zephyr integer types with C99 types 
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
 2020-06-08 08:23:57 -05:00
Henrik Brix Andersen
e5f3279abb adc: common: handle gain of 128 in adc_gain_invert() 
Add missing entry for ADC_GAIN_128 in the adc_gain_invert() function.

This fixes 4420c5ed40.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
 2020-02-05 14:28:09 -06:00
Peter A. Bigot
4420c5ed40 adc: provide API to help with conversions 
Gain values are specified with enumeration values that can't be used
to reverse the effects of scaling the input signal.  Provide a
function that reverses the effect of the gain by scaling a measured
value.

Also provide a function that converts a raw measurement captured with
a reference voltage and specific gain and resolution to the
corresponding voltage in millivolts.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
 2020-02-03 16:26:51 +01:00