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https://github.com/UzixLS/picocom.git
synced 2025-07-19 07:21:18 +03:00
Add command to toggle RTS
This commit is contained in:
Cody Planteen
@ -64,7 +64,7 @@ here.
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: Quit the program _without_ reseting the serial port, regardless of
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the **--noreset** option.
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**C-p**
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: Pulse the DTR line. Lower it for 1 sec, and then raise it again.
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@ -74,6 +74,11 @@ here.
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: Toggle the DTR line. If DTR is up, then lower it. If it is down,
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then raise it.
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**C-g**
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: Toggle the RTS line. If RTS is up, then lower it. If it is down,
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then raise it. Not supported if the flow control mode is RTS/CTS.
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**C-backslash**
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: Generate a break sequence on the serial line. A break sequence is
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@ -83,7 +88,7 @@ here.
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**C-b**
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: Set baurdate. Prompts you to enter a baudrate numerically (in bps)
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: Set baudrate. Prompts you to enter a baudrate numerically (in bps)
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and configures the serial port accordingly.
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**C-u**
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32
picocom.c
32
picocom.c
@ -84,7 +84,8 @@ const char *flow_str[] = {
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#define KEY_EXIT CKEY('x') /* exit picocom */
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#define KEY_QUIT CKEY('q') /* exit picocom without reseting port */
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#define KEY_PULSE CKEY('p') /* pulse DTR */
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#define KEY_TOGGLE CKEY('t') /* toggle DTR */
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#define KEY_TOG_DTR CKEY('t') /* toggle DTR */
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#define KEY_TOG_RTS CKEY('g') /* toggle RTS */
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#define KEY_BAUD CKEY('b') /* set baudrate */
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#define KEY_BAUD_UP CKEY('u') /* increase baudrate (up) */
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#define KEY_BAUD_DN CKEY('d') /* decrase baudrate (down) */
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@ -669,7 +670,7 @@ stopbits_next (int bits)
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}
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void
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show_status (int dtr_up)
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show_status (int dtr_up, int rts_up)
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{
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int baud, bits, stopbits, mctl;
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enum flowcntrl_e flow;
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@ -715,12 +716,18 @@ show_status (int dtr_up)
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mctl = term_get_mctl(tty_fd);
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if (mctl >= 0 && mctl != MCTL_UNAVAIL) {
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if ( ((mctl & MCTL_DTR) ? 1 : 0) == dtr_up )
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if ( ((mctl & MCTL_DTR) ? 1 : 0) == dtr_up )
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fd_printf(STO, "*** dtr: %s\r\n", dtr_up ? "up" : "down");
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else
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fd_printf(STO, "*** dtr: %s (%s)\r\n",
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dtr_up ? "up" : "down",
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(mctl & MCTL_DTR) ? "up" : "down");
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if ( ((mctl & MCTL_RTS) ? 1 : 0) == rts_up )
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fd_printf(STO, "*** rts: %s\r\n", rts_up ? "up" : "down");
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else
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fd_printf(STO, "*** rts: %s (%s)\r\n",
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rts_up ? "up" : "down",
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(mctl & MCTL_RTS) ? "up" : "down");
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fd_printf(STO, "*** mctl: ");
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fd_printf(STO, "DTR:%c DSR:%c DCD:%c RTS:%c CTS:%c RI:%c\r\n",
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(mctl & MCTL_DTR) ? '1' : '0',
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@ -731,6 +738,7 @@ show_status (int dtr_up)
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(mctl & MCTL_RI) ? '1' : '0');
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} else {
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fd_printf(STO, "*** dtr: %s\r\n", dtr_up ? "up" : "down");
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fd_printf(STO, "*** rts: %s\r\n", rts_up ? "up" : "down");
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}
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}
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@ -763,7 +771,9 @@ show_keys()
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fd_printf(STO, "*** [C-%c] : Pulse DTR\r\n",
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KEYC(KEY_PULSE));
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fd_printf(STO, "*** [C-%c] : Toggle DTR\r\n",
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KEYC(KEY_TOGGLE));
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KEYC(KEY_TOG_DTR));
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fd_printf(STO, "*** [C-%c] : Toggle RTS\r\n",
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KEYC(KEY_TOG_RTS));
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fd_printf(STO, "*** [C-%c] : Send break\r\n",
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KEYC(KEY_BREAK));
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fd_printf(STO, "*** [C-%c] : Toggle local echo\r\n",
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@ -900,6 +910,7 @@ int
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do_command (unsigned char c)
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{
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static int dtr_up = 0;
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static int rts_up = 0;
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int newbaud, newflow, newparity, newbits, newstopbits;
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const char *xfr_cmd;
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char *fname;
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@ -915,7 +926,7 @@ do_command (unsigned char c)
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term_erase(tty_fd);
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return 1;
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case KEY_STATUS:
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show_status(dtr_up);
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show_status(dtr_up, rts_up);
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break;
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case KEY_HELP:
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case KEY_KEYS:
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@ -926,7 +937,7 @@ do_command (unsigned char c)
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if ( term_pulse_dtr(tty_fd) < 0 )
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fd_printf(STO, "*** FAILED\r\n");
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break;
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case KEY_TOGGLE:
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case KEY_TOG_DTR:
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if ( dtr_up )
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r = term_lower_dtr(tty_fd);
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else
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@ -935,6 +946,15 @@ do_command (unsigned char c)
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fd_printf(STO, "\r\n*** DTR: %s ***\r\n",
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dtr_up ? "up" : "down");
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break;
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case KEY_TOG_RTS:
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if ( rts_up )
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r = term_lower_rts(tty_fd);
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else
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r = term_raise_rts(tty_fd);
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if ( r >= 0 ) rts_up = ! rts_up;
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fd_printf(STO, "\r\n*** RTS: %s ***\r\n",
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rts_up ? "up" : "down");
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break;
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case KEY_BAUD:
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case KEY_BAUD_UP:
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case KEY_BAUD_DN:
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105
term.c
105
term.c
@ -100,7 +100,9 @@ static const char * const term_err_str[] = {
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[TERM_EDTRUP] = "Cannot raise DTR",
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[TERM_EMCTL] = "Cannot get mctl status",
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[TERM_EDRAIN] = "Cannot drain the device",
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[TERM_EBREAK] = "Cannot send break sequence"
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[TERM_EBREAK] = "Cannot send break sequence",
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[TERM_ERTSDOWN] = "Cannot lower RTS",
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[TERM_ERTSUP] = "Cannot raise RTS"
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};
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static char term_err_buff[1024];
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@ -137,6 +139,8 @@ term_strerror (int terrnum, int errnum)
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case TERM_EDTRDOWN:
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case TERM_EDTRUP:
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case TERM_EMCTL:
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case TERM_ERTSDOWN:
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case TERM_ERTSUP:
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snprintf(term_err_buff, sizeof(term_err_buff),
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"%s", term_err_str[terrnum]);
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rval = term_err_buff;
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@ -1437,6 +1441,105 @@ term_lower_dtr(int fd)
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return rval;
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}
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/***************************************************************************/
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int
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term_raise_rts(int fd)
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{
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int rval, r, i;
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rval = 0;
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do { /* dummy */
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i = term_find(fd);
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if ( i < 0 ) {
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rval = -1;
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break;
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}
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#ifdef __linux__
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{
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int opins = TIOCM_RTS;
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r = ioctl(fd, TIOCMBIS, &opins);
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if ( r < 0 ) {
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term_errno = TERM_ERTSUP;
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rval = -1;
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break;
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}
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}
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#else
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r = tcsetattr(fd, TCSANOW, &term.currtermios[i]);
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if ( r < 0 ) {
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/* FIXME: perhaps try to update currtermios */
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term_errno = TERM_ESETATTR;
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rval = -1;
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break;
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}
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#endif /* of __linux__ */
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} while (0);
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return rval;
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}
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/***************************************************************************/
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int
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term_lower_rts(int fd)
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{
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int rval, r, i;
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rval = 0;
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do { /* dummy */
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i = term_find(fd);
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if ( i < 0 ) {
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rval = -1;
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break;
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}
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#ifdef __linux__
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{
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int opins = TIOCM_RTS;
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r = ioctl(fd, TIOCMBIC, &opins);
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if ( r < 0 ) {
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term_errno = TERM_ERTSDOWN;
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rval = -1;
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break;
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}
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}
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#else
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{
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struct termios tio;
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r = tcgetattr(fd, &tio);
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if ( r < 0 ) {
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term_errno = TERM_EGETATTR;
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rval = -1;
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break;
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}
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term.currtermios[i] = tio;
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cfsetospeed(&tio, B0);
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cfsetispeed(&tio, B0);
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r = tcsetattr(fd, TCSANOW, &tio);
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if ( r < 0 ) {
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term_errno = TERM_ESETATTR;
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rval = -1;
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break;
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}
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}
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#endif /* of __linux__ */
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} while (0);
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return rval;
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}
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/***************************************************************************/
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int
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24
term.h
24
term.h
@ -60,6 +60,8 @@
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* F term_pulse_dtr - pulse the DTR line a device
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* F term_lower_dtr - lower the DTR line of a device
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* F term_raise_dtr - raise the DTR line of a device
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* F term_lower_rts - lower the RTS line of a device
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* F term_raise_rts - raise the RTS line of a device
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* F term_get_mctl - Get modem control signals status
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* F term_drain - drain the output from the terminal buffer
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* F term_flush - discard terminal input and output queue contents
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@ -142,7 +144,9 @@ enum term_errno_e {
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TERM_EDTRUP,
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TERM_EMCTL,
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TERM_EDRAIN, /* see errno */
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TERM_EBREAK
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TERM_EBREAK,
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TERM_ERTSDOWN,
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TERM_ERTSUP
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};
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/* E parity_e
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@ -605,6 +609,24 @@ int term_lower_dtr (int fd);
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*/
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int term_raise_dtr (int fd);
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/* F term_lower_rts
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*
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* Lowers the RTS line of the device associated with the managed
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* filedes "fd".
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*
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* Returns negative on failure, non negative on success.
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*/
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int term_lower_rts (int fd);
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/* F term_raise_rts
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*
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* Raises the RTS line of the device associated with the managed
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* filedes "fd".
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*
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* Returns negative on failure, non negative on success.
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*/
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int term_raise_rts (int fd);
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/* F term_get_mctl
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*
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* Get the status of the modem control lines of the serial port
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