/*
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* Analogy for Linux, test program for waveform generation
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*
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* Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
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* Copyright (C) 2008 Alexis Berlemont <alexis.berlemont@free.fr>
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*
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* Xenomai is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Xenomai is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Xenomai; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __SIGNAL_GENERATION_H__
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#define __SIGNAL_GENERATION_H__
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#include <stdio.h>
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#define MAX_SAMPLE_COUNT 8096
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#define MIN_SAMPLE_COUNT 2
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#define WAVEFORM_SINE 0
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#define WAVEFORM_SAWTOOTH 1
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#define WAVEFORM_TRIANGULAR 2
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#define WAVEFORM_STEPS 3
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struct waveform_config {
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/* Waveform stuff */
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int wf_kind;
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double wf_frequency;
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double wf_amplitude;
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double wf_offset;
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/* Sampling stuff */
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double spl_frequency;
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int spl_count;
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};
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void a4l_wf_init_sine(struct waveform_config *config, double *values);
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void a4l_wf_init_sawtooth(struct waveform_config *config, double *values);
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void a4l_wf_init_triangular(struct waveform_config *config, double *values);
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void a4l_wf_init_steps(struct waveform_config *config, double *values);
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void a4l_wf_set_sample_count(struct waveform_config *config);
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int a4l_wf_check_config(struct waveform_config *config);
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void a4l_wf_init_values(struct waveform_config *config, double *values);
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void a4l_wf_dump_values(struct waveform_config *config, double *values);
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#endif /* __SIGNAL_GENERATION_H__ */
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