max2221x.h

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/*
 * Copyright (c) 2025 Analog Devices Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef ZEPHYR_INCLUDE_DRIVERS_PWM_MAX2221X_H_
#define ZEPHYR_INCLUDE_DRIVERS_PWM_MAX2221X_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <zephyr/device.h>
#include <zephyr/sys/util.h>


enum max2221x_master_chop_freq {
        MAX2221X_FREQ_100KHZ = 0, 
        MAX2221X_FREQ_80KHZ,      
        MAX2221X_FREQ_60KHZ,      
        MAX2221X_FREQ_50KHZ,      
        MAX2221X_FREQ_40KHZ,      
        MAX2221X_FREQ_30KHZ,      
        MAX2221X_FREQ_25KHZ,      
        MAX2221X_FREQ_20KHZ,      
        MAX2221X_FREQ_15KHZ,      
        MAX2221X_FREQ_10KHZ,      
        MAX2221X_FREQ_7500HZ,     
        MAX2221X_FREQ_5000HZ,     
        MAX2221X_FREQ_2500HZ,     
 
        MAX2221X_FREQ_INVALID, 
};

enum max2221x_individual_chop_freq {
        MAX2221X_FREQ_M = 0, 
        MAX2221X_FREQ_M_2,   
        MAX2221X_FREQ_M_4,   
        MAX2221X_FREQ_M_8,   
 
        MAX2221X_FREQ_M_INVALID, 
};

int max2221x_get_master_chop_freq(const struct device *dev);

int max2221x_get_channel_freq(const struct device *dev, uint32_t channel, uint32_t *channel_freq);

int max2221x_calculate_duty_cycle(uint32_t pulse, uint32_t period, uint16_t *duty_cycle);

int max2221x_calculate_master_freq_divisor(uint32_t master_freq, uint32_t period,
                                           int *freq_divisor);

int max2221x_get_cycles_per_sec(const struct device *dev, uint32_t channel, uint64_t *cycles);

int max2221x_set_cycles(const struct device *dev, uint32_t channel, uint32_t period, uint32_t pulse,
                        pwm_flags_t flags);

 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_PWM_MAX2221X_H_ */