diff options
Diffstat (limited to 'games/morse/morse.c')
| -rw-r--r-- | games/morse/morse.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/games/morse/morse.c b/games/morse/morse.c index f04f1b5..eb9e4d4 100644 --- a/games/morse/morse.c +++ b/games/morse/morse.c @@ -266,12 +266,14 @@ void show(const char *), play(const char *), morse(char); void ttyout(const char *); void sighandler(int); -#define GETOPTOPTS "d:ef:lsw:" +#define GETOPTOPTS "c:d:ef:lsw:" #define USAGE \ -"usage: morse [-els] [-d device] [-w speed] [-f frequency] [string ...]\n" +"usage: morse [-els] [-d device] [-w speed] [-c speed] [-f frequency] [string ...]\n" static int pflag, lflag, sflag, eflag; -static int wpm = 20; /* words per minute */ +static int wpm = 20; /* effective words per minute */ +static int cpm; /* effective words per minute between + * characters */ #define FREQUENCY 600 static int freq = FREQUENCY; static char *device; /* for tty-controlled generator */ @@ -280,6 +282,7 @@ static char *device; /* for tty-controlled generator */ #define CHAR_SPACE 3 #define WORD_SPACE (7 - CHAR_SPACE - 1) static float dot_clock; +static float cdot_clock; int spkr, line; struct termios otty, ntty; int olflags; @@ -287,10 +290,10 @@ int olflags; #ifdef SPEAKER tone_t sound; #undef GETOPTOPTS -#define GETOPTOPTS "d:ef:lpsw:" +#define GETOPTOPTS "c:d:ef:lpsw:" #undef USAGE #define USAGE \ -"usage: morse [-elps] [-d device] [-w speed] [-f frequency] [string ...]\n" +"usage: morse [-elps] [-d device] [-w speed] [-c speed] [-f frequency] [string ...]\n" #endif static const struct morsetab *hightab; @@ -303,6 +306,9 @@ main(int argc, char **argv) while ((ch = getopt(argc, argv, GETOPTOPTS)) != -1) switch ((char) ch) { + case 'c': + cpm = atoi(optarg); + break; case 'd': device = optarg; break; @@ -340,7 +346,9 @@ main(int argc, char **argv) fputs("morse: only one of -p, -d and -l, -s allowed\n", stderr); exit(1); } - if ((pflag || device) && ((wpm < 1) || (wpm > 60))) { + if (cpm == 0) + cpm = wpm; + if ((pflag || device) && ((wpm < 1) || (wpm > 60) || (cpm < 1) || (cpm > 60))) { fputs("morse: insane speed\n", stderr); exit(1); } @@ -385,6 +393,12 @@ main(int argc, char **argv) dot_clock = dot_clock / 2; /* dot_clock runs at twice */ /* the dot rate */ dot_clock = dot_clock * 100; /* scale for ioctl */ + + cdot_clock = cpm / 2.4; /* dots/sec */ + cdot_clock = 1 / cdot_clock; /* duration of a dot */ + cdot_clock = cdot_clock / 2; /* dot_clock runs at twice */ + /* the dot rate */ + cdot_clock = cdot_clock * 100; /* scale for ioctl */ } argc -= optind; @@ -492,7 +506,7 @@ play(const char *s) break; case ' ': sound.frequency = 0; - sound.duration = dot_clock * WORD_SPACE; + sound.duration = cdot_clock * WORD_SPACE; break; default: sound.duration = 0; @@ -511,7 +525,7 @@ play(const char *s) } } sound.frequency = 0; - sound.duration = dot_clock * CHAR_SPACE; + sound.duration = cdot_clock * CHAR_SPACE; ioctl(spkr, SPKRTONE, &sound); #endif } @@ -534,7 +548,7 @@ ttyout(const char *s) break; case ' ': on = 0; - duration = dot_clock * WORD_SPACE; + duration = cdot_clock * WORD_SPACE; break; default: on = 0; @@ -554,7 +568,7 @@ ttyout(const char *s) duration = dot_clock * 10000; usleep(duration); } - duration = dot_clock * CHAR_SPACE * 10000; + duration = cdot_clock * CHAR_SPACE * 10000; usleep(duration); } |
