avg-mean-us.h


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/*
 * Author: Andy Green <andy.green@linaro.org> 
 * Copyright (C) 2012 Linaro, LTD
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 */


struct avg_mean_us {                                                            
        unsigned short *ring;                                                   
        int width;                                                              
        int count;                                                              
        int next;                                                               
        unsigned long sum;                                                      
};                                                                              
                                                                                
int avg_mean_us_init(struct avg_mean_us *amu, int width);                       
void avg_mean_us_add(struct avg_mean_us *amu, unsigned short s);                
double avg_mean_us(struct avg_mean_us *amu);
void avg_mean_us_free(struct avg_mean_us *amu);
void avg_mean_us_flush(struct avg_mean_us *amu);