/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Matthias P. Braendli, Maximilien Cuony
 *
 * 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.
*/

#pragma once
#include <stdint.h>

void analog_init(void);

/* Measure the 12V supply voltage, in 0.5V increments.
 * Returns 0.0f in case of error
 *
 * Warning, do not run from interrupt context!
 */
float analog_measure_12v(void);

/* Measure SWR, and return voltages in mV.
 * Returns 0 in case of error, 1 in case of success
 *
 * Warning, do not run from interrupt context!
 */
int analog_measure_swr(int *forward_mv, int* reflected_mv);

/* Keep an average of measurements, and decide if the repeater should enter
 * QRP. Returns 1 if low power must be activated
 *
 * Warning, do not run from interrupt context!
 */
int analog_supply_too_low(void);