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#ifndef FILTER_H_
#define FILTER_H_
#include "util.h"
#include "fixpt.h"
struct lp_filter_u16 {
uint24_t filter_buf;
};
struct lp_filter_fixpt {
fixpt_t filter_buf;
};
static inline void lp_filter_u16_set(struct lp_filter_u16 *lp,
uint16_t new_value)
{
lp->filter_buf = new_value;
}
static inline void lp_filter_u16_reset(struct lp_filter_u16 *lp)
{
lp_filter_u16_set(lp, 0u);
}
uint16_t lp_filter_u16_run(struct lp_filter_u16 *lp, uint16_t in,
uint8_t filter_shift);
static inline void lp_filter_fixpt_set(struct lp_filter_fixpt *lp,
fixpt_t new_value)
{
lp->filter_buf = new_value;
}
static inline void lp_filter_fixpt_reset(struct lp_filter_fixpt *lp)
{
lp_filter_fixpt_set(lp, int_to_fixpt(0));
}
fixpt_t lp_filter_fixpt_run(struct lp_filter_fixpt *lp, fixpt_t in,
fixpt_t div);
#endif /* FILTER_H_ */
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