Use same names as adv-v2 peripheral uses. F1 is the only v1 peripheral
adc that has calibration modes at all.
Old:
adc_calibration(ADC1); // blocking call
New (blocking):
adc_calibrate(ADC1);
New (asynch):
adc_calibrate_async(ADC1);
// do stuff
adc_is_calibrating(ADC1); // false when calibration finished
Old routines are preserved but marked deprecated for now.
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