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Added support for setting and changing stopbits.

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This commit is contained in:
Nick Patavalis
2015-08-19 00:15:19 +03:00
parent fcc0c6eafc
commit c24a3bcf41
3 changed files with 157 additions and 9 deletions
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71
term.c
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@ -71,6 +71,7 @@ static const char * const term_err_str[] = {
[TERM_EGETSPEED] = "Cannot decode speed",
[TERM_EPARITY] = "Invalid parity mode",
[TERM_EDATABITS] = "Invalid number of databits",
[TERM_ESTOPBITS] = "Invalid number of stopbits",
[TERM_EFLOW] = "Invalid flowcontrol mode",
[TERM_EDTRDOWN] = "Cannot lower DTR",
[TERM_EDTRUP] = "Cannot raise DTR",
@ -107,6 +108,7 @@ term_strerror (int terrnum, int errnum)
case TERM_EBAUD:
case TERM_EPARITY:
case TERM_EDATABITS:
case TERM_ESTOPBITS:
case TERM_EFLOW:
case TERM_EDTRDOWN:
case TERM_EDTRUP:
@ -936,6 +938,65 @@ term_get_databits (int fd)
/***************************************************************************/
int
term_set_stopbits (int fd, int stopbits)
{
int rval, i;
struct termios *tiop;
rval = 0;
do { /* dummy */
i = term_find(fd);
if ( i < 0 ) {
rval = -1;
break;
}
tiop = &term.nexttermios[i];
switch (stopbits) {
case 1:
tiop->c_cflag &= ~CSTOPB;
break;
case 2:
tiop->c_cflag |= CSTOPB;
break;
default:
term_errno = TERM_ESTOPBITS;
rval = -1;
break;
}
if ( rval < 0 ) break;
} while (0);
return rval;
}
int
term_get_stopbits (int fd)
{
int i, bits;
do { /* dummy */
i = term_find(fd);
if ( i < 0 ) {
bits = -1;
break;
}
bits = (term.currtermios[i].c_cflag & CSTOPB) ? 2 : 1;
} while (0);
return bits;
}
/***************************************************************************/
int
term_set_flowcntrl (int fd, enum flowcntrl_e flowcntl)
{
@ -1077,7 +1138,10 @@ term_set_hupcl (int fd, int on)
int
term_set(int fd,
int raw,
int baud, enum parity_e parity, int bits, enum flowcntrl_e fc,
int baud,
enum parity_e parity,
int databits, int stopbits,
enum flowcntrl_e fc,
int local, int hup_close)
{
int rval, r, i, ni;
@ -1113,7 +1177,10 @@ term_set(int fd,
r = term_set_parity(fd, parity);
if ( r < 0 ) { rval = -1; break; }
r = term_set_databits(fd, bits);
r = term_set_databits(fd, databits);
if ( r < 0 ) { rval = -1; break; }
r = term_set_stopbits(fd, stopbits);
if ( r < 0 ) { rval = -1; break; }
r = term_set_flowcntrl(fd, fc);