1 /* Averaging Implementation */
3 /* (C) 2010 by Harald Welte <laforge@gnumonks.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 #include <layer1/avg.h>
27 /* input a new sample into the averaging process */
28 void runavg_input(struct running_avg *ravg, int32_t val, int valid)
33 ravg->num_samples_valid++;
37 /* check if sufficient samples have been obtained, and call outfn() */
38 int runavg_check_output(struct running_avg *ravg)
40 if (ravg->num_samples < ravg->period)
43 if (ravg->num_samples_valid >= ravg->min_valid) {
44 int32_t avg = ravg->acc_val / ravg->num_samples_valid;
46 ravg->outfn(ravg, avg);
48 ravg->num_samples = ravg->num_samples_valid = 0;