watch_adc.h

/*
 * MIT License
 *
 * Copyright (c) 2020 Joey Castillo
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
#ifndef _WATCH_ADC_H_INCLUDED
#define _WATCH_ADC_H_INCLUDED
 
#include "watch.h"
 
 
void watch_enable_adc(void);
 
void watch_enable_analog_input(const uint8_t pin);
 
uint16_t watch_get_analog_pin_level(const uint8_t pin);
 
void watch_set_analog_num_samples(uint16_t samples);
 
void watch_set_analog_sampling_length(uint8_t cycles);
 
typedef enum {
    ADC_REFERENCE_INTREF = 0,
    ADC_REFERENCE_VCC_DIV1POINT6,
    ADC_REFERENCE_VCC_DIV2,
    ADC_REFERENCE_VCC,
} watch_adc_reference_voltage;
 
 
void watch_set_analog_reference_voltage(watch_adc_reference_voltage reference);
 
uint16_t watch_get_vcc_voltage(void);
 
void watch_disable_analog_input(const uint8_t pin);
 
void watch_disable_adc(void);
 
#endif