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Add Farnsworth support to morse(6).
(For those interested: this is intented to extend the space between characters to help people learning morse code by giving the brain some extra time for acoustical pattern recognition.) Note: I slightly cleaned up the submitted patch for minor stylistic issues, and changed the default for the new -c option to be identical to -w. Submitted by: "Stephen P. Cravey" <cravey@gotbrains.org> N5UUU MFC after: 2 weeks PR: bin/81831
This commit is contained in:
Joerg Wunsch
parent
a8d23252b6
commit
bc48d6e6c9
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=147110
@ -33,7 +33,7 @@
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.\" @(#)bcd.6 8.1 (Berkeley) 5/31/93
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.\" $FreeBSD$
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.\"
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.Dd May 11, 2004
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.Dd June 7, 2005
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.Dt MORSE 6
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.Os
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.Sh NAME
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@ -44,6 +44,7 @@
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.Op Fl elps
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.Op Fl d Ar device
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.Op Fl w Ar speed
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.Op Fl c Ar speed
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.Op Fl f Ar frequency
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.Op Ar string ...
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.Sh DESCRIPTION
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@ -73,6 +74,14 @@ support.
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Set the sending speed in words per minute.
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If not specified, the default
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speed of 20 WPM is used.
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.It Fl c Ar speed
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Farnsworth support.
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Set the spacing between characters in words per minute.
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This is independent of the speed
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that the individual characters are sent.
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If not specified, defaults to the effective value of the
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.Fl w
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option.
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.It Fl f Ar frequency
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Set the sidetone frequency to something other than the default 600 Hz.
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.It Fl d Ar device
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@ -91,6 +100,8 @@ or
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.Pp
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The
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.Fl w
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,
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.Fl c
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and
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.Fl f
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flags only work in conjunction with either the
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@ -176,6 +187,11 @@ added by
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Ability to key an external device added by
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.An J\(:org Wunsch
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(DL8DTL).
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.Pp
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Farnsworth support for
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.Nm
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added by
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.An Stephen Cravey (N5UUU).
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.Sh BUGS
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Only understands a few European characters
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(German and French),
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@ -266,12 +266,14 @@ void show(const char *), play(const char *), morse(char);
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void ttyout(const char *);
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void sighandler(int);
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#define GETOPTOPTS "d:ef:lsw:"
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#define GETOPTOPTS "c:d:ef:lsw:"
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#define USAGE \
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"usage: morse [-els] [-d device] [-w speed] [-f frequency] [string ...]\n"
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"usage: morse [-els] [-d device] [-w speed] [-c speed] [-f frequency] [string ...]\n"
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static int pflag, lflag, sflag, eflag;
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static int wpm = 20; /* words per minute */
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static int wpm = 20; /* effective words per minute */
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static int cpm; /* effective words per minute between
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* characters */
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#define FREQUENCY 600
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static int freq = FREQUENCY;
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static char *device; /* for tty-controlled generator */
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@ -280,6 +282,7 @@ static char *device; /* for tty-controlled generator */
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#define CHAR_SPACE 3
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#define WORD_SPACE (7 - CHAR_SPACE - 1)
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static float dot_clock;
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static float cdot_clock;
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int spkr, line;
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struct termios otty, ntty;
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int olflags;
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@ -287,10 +290,10 @@ int olflags;
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#ifdef SPEAKER
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tone_t sound;
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#undef GETOPTOPTS
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#define GETOPTOPTS "d:ef:lpsw:"
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#define GETOPTOPTS "c:d:ef:lpsw:"
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#undef USAGE
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#define USAGE \
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"usage: morse [-elps] [-d device] [-w speed] [-f frequency] [string ...]\n"
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"usage: morse [-elps] [-d device] [-w speed] [-c speed] [-f frequency] [string ...]\n"
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#endif
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static const struct morsetab *hightab;
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@ -303,6 +306,9 @@ main(int argc, char **argv)
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while ((ch = getopt(argc, argv, GETOPTOPTS)) != -1)
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switch ((char) ch) {
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case 'c':
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cpm = atoi(optarg);
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break;
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case 'd':
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device = optarg;
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break;
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@ -340,7 +346,9 @@ main(int argc, char **argv)
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fputs("morse: only one of -p, -d and -l, -s allowed\n", stderr);
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exit(1);
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}
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if ((pflag || device) && ((wpm < 1) || (wpm > 60))) {
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if (cpm == 0)
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cpm = wpm;
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if ((pflag || device) && ((wpm < 1) || (wpm > 60) || (cpm < 1) || (cpm > 60))) {
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fputs("morse: insane speed\n", stderr);
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exit(1);
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}
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@ -385,6 +393,12 @@ main(int argc, char **argv)
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dot_clock = dot_clock / 2; /* dot_clock runs at twice */
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/* the dot rate */
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dot_clock = dot_clock * 100; /* scale for ioctl */
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cdot_clock = cpm / 2.4; /* dots/sec */
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cdot_clock = 1 / cdot_clock; /* duration of a dot */
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cdot_clock = cdot_clock / 2; /* dot_clock runs at twice */
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/* the dot rate */
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cdot_clock = cdot_clock * 100; /* scale for ioctl */
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}
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argc -= optind;
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@ -492,7 +506,7 @@ play(const char *s)
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break;
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case ' ':
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sound.frequency = 0;
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sound.duration = dot_clock * WORD_SPACE;
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sound.duration = cdot_clock * WORD_SPACE;
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break;
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default:
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sound.duration = 0;
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@ -511,7 +525,7 @@ play(const char *s)
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}
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}
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sound.frequency = 0;
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sound.duration = dot_clock * CHAR_SPACE;
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sound.duration = cdot_clock * CHAR_SPACE;
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ioctl(spkr, SPKRTONE, &sound);
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#endif
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}
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@ -534,7 +548,7 @@ ttyout(const char *s)
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break;
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case ' ':
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on = 0;
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duration = dot_clock * WORD_SPACE;
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duration = cdot_clock * WORD_SPACE;
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break;
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default:
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on = 0;
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@ -554,7 +568,7 @@ ttyout(const char *s)
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duration = dot_clock * 10000;
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usleep(duration);
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}
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duration = dot_clock * CHAR_SPACE * 10000;
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duration = cdot_clock * CHAR_SPACE * 10000;
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usleep(duration);
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}
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