4 * Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
9 static char rcsid[] = "$Id$";
13 * Revision 1.19 2008/02/28 16:57:52 james
14 * *** empty log message ***
16 * Revision 1.18 2008/02/28 16:37:16 james
17 * *** empty log message ***
19 * Revision 1.17 2008/02/28 15:37:06 james
20 * *** empty log message ***
22 * Revision 1.16 2008/02/28 12:12:25 james
23 * *** empty log message ***
25 * Revision 1.15 2008/02/28 00:10:44 james
26 * *** empty log message ***
28 * Revision 1.14 2008/02/23 13:05:58 staffcvs
29 * *** empty log message ***
31 * Revision 1.13 2008/02/23 11:48:37 james
32 * *** empty log message ***
34 * Revision 1.12 2008/02/22 23:39:27 james
35 * *** empty log message ***
37 * Revision 1.11 2008/02/20 18:31:53 james
38 * *** empty log message ***
40 * Revision 1.10 2008/02/15 23:52:12 james
41 * *** empty log message ***
43 * Revision 1.9 2008/02/15 03:32:07 james
44 * *** empty log message ***
46 * Revision 1.8 2008/02/14 10:36:18 james
47 * *** empty log message ***
49 * Revision 1.7 2008/02/14 10:34:30 james
50 * *** empty log message ***
52 * Revision 1.6 2008/02/13 16:59:34 james
53 * *** empty log message ***
55 * Revision 1.5 2008/02/13 16:57:29 james
56 * *** empty log message ***
58 * Revision 1.4 2008/02/12 22:36:46 james
59 * *** empty log message ***
61 * Revision 1.3 2008/02/09 15:47:28 james
62 * *** empty log message ***
70 speed_t_to_baud (speed_t s)
156 baud_to_speed_t (int baud)
241 tty_pre_select (TTY * t, fd_set * rfds, fd_set * wfds)
244 struct timeval now, dif;
249 gettimeofday (&now, NULL);
250 timersub (&now, &t->hangup_clock, &dif);
254 ioctl (t->rfd, TIOCMBIS, &line);
260 FD_SET (t->rfd, rfds);
264 tty_get_status (TTY * t, TTY_Status * s)
268 ioctl (t->rfd, TIOCMGET, &s->lines);
270 if (tcgetattr (t->rfd, &s->termios))
273 s->baud = speed_t_to_baud (cfgetispeed (&s->termios));
274 s->blocked = t->blocked;
280 tty_get_baud (TTY * t)
282 struct termios tios = { 0 };
284 if (tcgetattr (t->rfd, &tios))
287 return speed_t_to_baud (cfgetispeed (&tios));
292 tty_set_baud (TTY * t, int rate)
294 struct termios tios = { 0 };
296 speed_t s = baud_to_speed_t (rate);
298 if (s == (speed_t) - 1)
301 if (tcgetattr (t->rfd, &tios))
304 cfsetispeed (&tios, s);
305 cfsetospeed (&tios, s);
307 tcsetattr (t->rfd, TCSANOW, &tios);
311 tty_send_break (TTY * t)
313 tcsendbreak (t->wfd, 0);
317 tty_set_flow (TTY * t, int flow)
319 struct termios tios = { 0 };
321 if (tcgetattr (t->rfd, &tios))
325 tios.c_cflag |= CRTSCTS;
327 tios.c_cflag &= ~CRTSCTS;
329 tcsetattr (t->rfd, TCSANOW, &tios);
339 ioctl (t->rfd, TIOCMBIC, &line);
342 gettimeofday (&t->hangup_clock, NULL);
346 void tty_length(TTY *t,int l)
348 t->displayed_length=l;
352 tty_winch (TTY * t, CRT_Pos size)
354 struct winsize sz = { 0 };
359 ioctl (t->wfd, TIOCSWINSZ, &sz);
370 int bit_edge_frequency[8];
377 #define bit(p,b,z,o) \
398 tty_bit_analyse (Context * c, int err, int ch)
402 TTY_Parser *p = c->tp;
407 for (d = 1; d < 0x100; d <<= 1)
409 bit (p, ch & d, zc, oc);
418 gettimeofday (&p->lasterr, NULL);
424 "<tty_bit_analyse: 0%d%d%d%d%d%d%d%d1 [%d,%d,%d,%d,%d,%d,%d,%d,%d,%d]>",
425 ch & 0x01 ? 1 : 0, ch & 0x02 ? 1 : 0, ch & 0x04 ? 1 : 0,
426 ch & 0x08 ? 1 : 0, ch & 0x10 ? 1 : 0, ch & 0x20 ? 1 : 0,
427 ch & 0x40 ? 1 : 0, ch & 0x80 ? 1 : 0, p->bitfreq[0],
428 p->bitfreq[1], p->bitfreq[2], p->bitfreq[3], p->bitfreq[4],
429 p->bitfreq[5], p->bitfreq[6], p->bitfreq[7], p->bitfreq[8],
436 tty_parse_reset (Context * c)
438 TTY_Parser *p = c->tp;
439 memset (p->bitfreq, 0, sizeof (p->bitfreq));
445 tty_analyse (Context * c)
447 TTY_Parser *p = c->tp;
448 struct timeval now, dif;
457 gettimeofday (&now, NULL);
459 timersub (&now, &p->lasterr, &dif);
470 for (i = 0; i < TTY_BITFREQ_LEN; ++i)
472 if (p->bitfreq[i] > max)
480 i = tty_get_baud (c->t);
486 /*Closest bit edge is one bit, so the baud rate is too low */
487 p->guessed_baud = -1;
493 p->guessed_baud = i / j;
499 if (p->guessed_baud == -1)
501 log_f (c->l, "<tty_analyse: %6d errors, current rate %db is too low>",
506 log_f (c->l, "<tty_analyse: %6d errors, current rate %db, suggest %db>",
507 p->biterrs, i, p->guessed_baud);
513 tty_parser_new (void)
517 p = (TTY_Parser *) malloc (sizeof (TTY_Parser));
519 memset (p, 0, sizeof (TTY_Parser));
525 tty_parse (Context * c, uint8_t * buf, int len)
540 tty_bit_analyse (c, 0, *buf);
541 utf8_parse (c, *buf);
547 log_f (c->l, "%s:%d DLE parsing error: \\377 \\%03o", __FILE__,
551 else if (p->in_errmark)
555 log_f (c->l, "<tty reports error: \\377 \\000 \\%03o>",
556 __FILE__, __LINE__, *buf);
558 tty_bit_analyse (c, 1, *buf);
562 utf8_parse (c, *buf);
564 utf8_parse (c, SYM_CHAR_RESET);
567 else if (*buf == DLE)
574 tty_bit_analyse (c, 0, *buf);
578 utf8_parse (c, *buf);