src/target/firmware/include/layer1/avg.h

   1 #ifndef _L1_AVG_H
   2 #define _L1_AVG_H
   3
   4 struct running_avg {
   5         /* configuration */
   6         uint16_t        period;                 /* over how many samples to average */
   7         uint16_t        min_valid;
   8
   9         int32_t         acc_val;
  10         uint16_t        num_samples;            /* how often did we try to sample? */
  11         uint16_t        num_samples_valid;      /* how often did we receive valid samples? */
  12
  13         void            (*outfn)(struct running_avg *, int32_t avg);
  14         void            *priv;
  15 };
  16
  17 /* input a new sample into the averaging process */
  18 void runavg_input(struct running_avg *ravg, int32_t val, int valid);
  19
  20 /* check if sufficient samples have been obtained, and call outfn() */
  21 int runavg_check_output(struct running_avg *ravg);
  22
  23 #endif /* _AVG_H */