tc.h

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/*
 * MIT License
 *
 * Copyright (c) 2022 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.
 */
 
#pragma once
 
#include <stdint.h>
#include <stdbool.h>
#include "sam.h"
#include "system.h"
 
typedef enum {
    TC_PRESCALER_DIV1 = 0,
    TC_PRESCALER_DIV2 = 1,
    TC_PRESCALER_DIV4 = 2,
    TC_PRESCALER_DIV8 = 3,
    TC_PRESCALER_DIV16 = 4,
    TC_PRESCALER_DIV64 = 5,
    TC_PRESCALER_DIV256 = 6,
    TC_PRESCALER_DIV1024 = 7
} tc_prescaler_value_t;
 
typedef enum {
    TC_COUNTER_MODE_16BIT = 0,
    TC_COUNTER_MODE_8BIT = 1,
    TC_COUNTER_MODE_32BIT = 2,
} tc_counter_mode_t;
 
typedef enum {
    TC_WAVEGEN_NORMAL_FREQUENCY = 0,
    TC_WAVEGEN_MATCH_FREQUENCY = 1,
    TC_WAVEGEN_NORMAL_PWM = 2,
    TC_WAVEGEN_MATCH_PWM = 3,
} tc_wavegen_t;
 
typedef enum {
    TC_CHANNEL_POLARITY_NORMAL = 0,
    TC_CHANNEL_POLARITY_INVERTED = 1,
} tc_channel_polarity_t;
 
bool tc_init(uint8_t instance, generic_clock_generator_t clocksource, tc_prescaler_value_t prescaler);
 
void tc_set_counter_mode(uint8_t instance, tc_counter_mode_t mode);
 
void tc_set_run_in_standby(uint8_t instance, bool runStandby);
 
void tc_set_wavegen(uint8_t instance, tc_wavegen_t mode);
 
void tc_set_channel_polarity(uint8_t instance, uint8_t channel, tc_channel_polarity_t polarity);
 
void tc_enable(uint8_t instance);
 
bool tc_is_enabled(uint8_t instance);
 
void tc_count8_set_period(uint8_t instance, uint8_t period);
 
void tc_count8_set_cc(uint8_t instance, uint8_t channel, uint8_t value);
 
void tc_count16_set_cc(uint8_t instance, uint8_t channel, uint16_t value);
 
void tc_count32_set_cc(uint8_t instance, uint8_t channel, uint32_t value);
 
void tc_count8_set_count(uint8_t instance, uint8_t value);
 
void tc_count16_set_count(uint8_t instance, uint16_t value);
 
void tc_count32_set_count(uint8_t instance, uint32_t value);
 
uint8_t tc_count8_get_count(uint8_t instance);
 
uint16_t tc_count16_get_count(uint8_t instance);
 
uint32_t tc_count32_get_count(uint8_t instance);
 
void tc_stop(uint8_t instance);
 
void tc_retrigger(uint8_t instance);
 
void tc_disable(uint8_t instance);