light_lightness_utils.h

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#ifndef LIGHT_LIGHTNESS_UTILS_H__
#define LIGHT_LIGHTNESS_UTILS_H__

#include <stdint.h>
#include "utils.h"
#include "generic_level_common.h"

static inline uint16_t light_lightness_utils_actual_to_linear(uint16_t ll_actual)
{
 return CEIL_DIV((uint32_t)ll_actual * ll_actual, UINT16_MAX);
}

static inline uint16_t light_lightness_utils_linear_to_actual(uint16_t ll_linear)
{
 return uint_sqrt((uint32_t)ll_linear * UINT16_MAX);
}

static inline int16_t light_lightness_utils_actual_to_generic_level(uint16_t ll_actual)
{
 return ll_actual - GENERIC_LEVEL_MIN;
}

static inline uint16_t light_lightness_utils_generic_level_to_actual(int16_t level)
{
 return level + GENERIC_LEVEL_MIN;
}

static inline uint8_t light_lightness_utils_actual_to_generic_onoff(uint16_t ll_actual)
{
 return (ll_actual == 0 ? 0 : 1);
}

static inline uint16_t light_lightness_utils_actual_to_range_restrict(uint16_t ll_actual,
 uint16_t range_min,
 uint16_t range_max)
{
 return ll_actual != 0 ? MIN(MAX(ll_actual, range_min), range_max) : 0;
}

#endif /* LIGHT_LIGHTNESS_UTILS_H__ */