mirror of
https://github.com/VK3FNG/soundmodem.git
synced 2025-12-06 03:01:59 +01:00
189 lines
6.1 KiB
C
189 lines
6.1 KiB
C
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/*****************************************************************************/
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/*
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* modem.h -- Defines for the modem.
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*
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* Copyright (C) 1999-2000 Thomas Sailer (sailer@ife.ee.ethz.ch)
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*
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* This program is free software; you can redistribute it and/or modify
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* it 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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Please note that the GPL allows you to use the driver, NOT the radio.
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* In order to use the radio, you need a license from the communications
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* authority of your country.
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*
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*/
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/*****************************************************************************/
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#ifndef _MODEM_H
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#define _MODEM_H
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/* ---------------------------------------------------------------------- */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/types.h>
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#include <stdarg.h>
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/* ---------------------------------------------------------------------- */
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/*
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* Bittypes
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*/
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#ifndef HAVE_SIGNED_BITTYPES
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
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typedef int int8_t __attribute__((__mode__(__QI__)));
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typedef int int16_t __attribute__((__mode__(__HI__)));
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typedef int int32_t __attribute__((__mode__(__SI__)));
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typedef int int64_t __attribute__((__mode__(__DI__)));
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#else
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typedef char /* deduced */ int8_t __attribute__((__mode__(__QI__)));
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typedef short /* deduced */ int16_t __attribute__((__mode__(__HI__)));
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typedef long /* deduced */ int32_t __attribute__((__mode__(__SI__)));
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typedef long long /* deduced */ int64_t __attribute__((__mode__(__DI__)));
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#endif
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#endif /* !HAVE_SIGNED_BITTYPES */
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#ifndef HAVE_UNSIGNED_BITTYPES
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
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typedef unsigned int u_int8_t __attribute__((__mode__(__QI__)));
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typedef unsigned int u_int16_t __attribute__((__mode__(__HI__)));
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typedef unsigned int u_int32_t __attribute__((__mode__(__SI__)));
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typedef unsigned int u_int64_t __attribute__((__mode__(__DI__)));
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#else
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typedef unsigned char /* deduced */ u_int8_t __attribute__((__mode__(__QI__)));
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typedef unsigned short /* deduced */ u_int16_t __attribute__((__mode__(__HI__)));
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typedef unsigned long /* deduced */ u_int32_t __attribute__((__mode__(__SI__)));
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typedef unsigned long long /* deduced */ u_int64_t __attribute__((__mode__(__DI__)));
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#endif
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#endif /* !HAVE_UNSIGNED_BITTYPES */
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/* ---------------------------------------------------------------------- */
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struct modemchannel;
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extern void audiowrite(struct modemchannel *chan, const int16_t *samples, unsigned int nr);
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extern void audioread(struct modemchannel *chan, int16_t *samples, unsigned int nr, u_int16_t tim);
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extern u_int16_t audiocurtime(struct modemchannel *chan);
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extern int pktget(struct modemchannel *chan, unsigned char *data, unsigned int len);
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extern void pktput(struct modemchannel *chan, const unsigned char *data, unsigned int len);
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extern void pktsetdcd(struct modemchannel *chan, int dcd);
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extern void p3dreceive(struct modemchannel *chan, const unsigned char *pkt, u_int16_t crc);
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extern void p3drxstate(struct modemchannel *chan, unsigned int synced, unsigned int carrierfreq);
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#define MLOG_FATAL 0
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#define MLOG_ERROR 1
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#define MLOG_WARNING 2
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#define MLOG_NOTICE 3
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#define MLOG_INFO 4
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#define MLOG_DEBUG 5
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extern void logvprintf(unsigned int level, const char *fmt, va_list args);
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extern void logprintf(unsigned int level, const char *fmt, ...);
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extern void logerr(unsigned int level, const char *st);
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extern unsigned int log_verblevel;
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extern inline int logcheck(unsigned int vl)
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{
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return vl <= log_verblevel;
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}
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#define MODEMPAR_STRING 0
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#define MODEMPAR_COMBO 1
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#define MODEMPAR_NUMERIC 2
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#define MODEMPAR_CHECKBUTTON 3
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struct modemparams {
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const char *name;
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const char *label;
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const char *tooltip;
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const char *dflt;
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unsigned int type;
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union {
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struct {
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float min;
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float max;
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float step;
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float pagestep;
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} n;
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struct {
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const char *combostr[8];
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} c;
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} u;
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};
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struct modulator {
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struct modulator *next;
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const char *name;
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const struct modemparams *params;
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void *(*config)(struct modemchannel *chan, unsigned int *samplerate, const char *params[]);
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void (*init)(void *, unsigned int samplerate);
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void (*modulate)(void *, unsigned int txdelay);
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void (*free)(void *);
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};
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struct demodulator {
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struct demodulator *next;
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const char *name;
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const struct modemparams *params;
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void *(*config)(struct modemchannel *chan, unsigned int *samplerate, const char *params[]);
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void (*init)(void *, unsigned int samplerate, unsigned int *bitrate);
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void (*demodulate)(void *);
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void (*free)(void *);
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};
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/* ---------------------------------------------------------------------- */
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extern struct modulator afskmodulator;
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extern struct demodulator afskdemodulator;
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extern struct modulator fskmodulator;
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extern struct demodulator fskdemodulator;
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extern struct demodulator fskpspdemodulator;
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extern struct demodulator fskeqdemodulator;
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extern struct modulator pammodulator;
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extern struct demodulator pamdemodulator;
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extern struct modulator pskmodulator;
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extern struct demodulator pskdemodulator;
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extern struct modulator newqpskmodulator;
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extern struct demodulator newqpskdemodulator;
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extern struct modulator p3dmodulator;
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extern struct demodulator p3ddemodulator;
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/* ---------------------------------------------------------------------- */
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#ifndef HAVE_VSNPRINTF
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extern int vsnprintf(char *str, size_t n, char const *fmt, va_list args);
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#endif
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#ifndef HAVE_SNPRINTF
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extern int snprintf(char *str, size_t n, char const *fmt, ...) __attribute__ ((format (printf, 3, 4)));
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#endif
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/* ---------------------------------------------------------------------- */
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#endif /* _MODEM_H */
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