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/* fmlib.c - simple V4L2 compatible tuner for radio cards
Copyright (C) 2009 Ben Pfaff <blp@cs.stanford.edu>
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, see <http://www.gnu.org/licenses/>.
*/
#ifndef FMLIB_H
#define FMLIB_H 1
#include <linux/videodev2.h>
#include <stdint.h>
#include <stdbool.h>
struct tuner {
int fd;
int index;
struct v4l2_queryctrl volume_ctrl;
struct v4l2_tuner tuner;
struct tuner_test *test;
};
extern char *program_name;
void fatal(int error, const char *msg, ...)
__attribute__((noreturn, format(printf, 2, 3)));
void tuner_open(struct tuner *, const char *device, int index);
void tuner_close(struct tuner *);
bool tuner_is_muted(const struct tuner *);
void tuner_set_mute(struct tuner *, bool mute);
bool tuner_has_volume_control(const struct tuner *);
double tuner_get_volume(const struct tuner *);
void tuner_set_volume(struct tuner *, double volume);
long long int tuner_get_min_freq(const struct tuner *);
long long int tuner_get_max_freq(const struct tuner *);
void tuner_set_freq(const struct tuner *, long long int frequency,
bool override_range);
int tuner_get_signal(const struct tuner *);
void tuner_sleep(const struct tuner *, int secs);
void tuner_usleep(const struct tuner *, int usecs);
#endif /* fmlib.h */
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