diff options
Diffstat (limited to 'vl.c')
| -rw-r--r-- | vl.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/vl.c b/vl.c index 03cd386906..e42ae6442d 100644 --- a/vl.c +++ b/vl.c @@ -2721,6 +2721,37 @@ static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) tcsendbreak(s->fd_in, 1); } break; + case CHR_IOCTL_SERIAL_GET_TIOCM: + { + int sarg = 0; + int *targ = (int *)arg; + ioctl(s->fd_in, TIOCMGET, &sarg); + *targ = 0; + if (sarg | TIOCM_CTS) + *targ |= CHR_TIOCM_CTS; + if (sarg | TIOCM_CAR) + *targ |= CHR_TIOCM_CAR; + if (sarg | TIOCM_DSR) + *targ |= CHR_TIOCM_DSR; + if (sarg | TIOCM_RI) + *targ |= CHR_TIOCM_RI; + if (sarg | TIOCM_DTR) + *targ |= CHR_TIOCM_DTR; + if (sarg | TIOCM_RTS) + *targ |= CHR_TIOCM_RTS; + } + break; + case CHR_IOCTL_SERIAL_SET_TIOCM: + { + int sarg = *(int *)arg; + int targ = 0; + if (sarg | CHR_TIOCM_DTR) + targ |= TIOCM_DTR; + if (sarg | CHR_TIOCM_RTS) + targ |= TIOCM_RTS; + ioctl(s->fd_in, TIOCMSET, &targ); + } + break; default: return -ENOTSUP; } |