diff options
| author | Jason Wright <jason@cvs.openbsd.org> | 1998-03-04 14:21:30 +0000 |
|---|---|---|
| committer | Jason Wright <jason@cvs.openbsd.org> | 1998-03-04 14:21:30 +0000 |
| commit | bde0ae6b25765a6dc970ab21d820f785f1fb1db7 (patch) | |
| tree | f5cf08c66d275eb339c35005004ef31dca44d735 /sys/arch/sparc/dev/zs.c | |
| parent | f91d55fe6493da6263721fa71b1d20d549c4b42f (diff) | |
added support for the TIOCM* ioctl's
Diffstat (limited to 'sys/arch/sparc/dev/zs.c')
| -rw-r--r-- | sys/arch/sparc/dev/zs.c | 66 |
1 files changed, 64 insertions, 2 deletions
diff --git a/sys/arch/sparc/dev/zs.c b/sys/arch/sparc/dev/zs.c index 6f16a96be9a..531357ffed2 100644 --- a/sys/arch/sparc/dev/zs.c +++ b/sys/arch/sparc/dev/zs.c @@ -1,4 +1,4 @@ -/* $OpenBSD: zs.c,v 1.19 1998/02/05 16:57:49 deraadt Exp $ */ +/* $OpenBSD: zs.c,v 1.20 1998/03/04 14:21:29 jason Exp $ */ /* $NetBSD: zs.c,v 1.49 1997/08/31 21:26:37 pk Exp $ */ /* @@ -151,6 +151,7 @@ static void zs_reset __P((volatile struct zschan *, int, int)); #endif static void zs_modem __P((struct zs_chanstate *, int)); static void zs_loadchannelregs __P((volatile struct zschan *, u_char *)); +static void tiocm_to_zs __P((struct zs_chanstate *, int how, int data)); /* Console stuff. */ static struct tty *zs_ctty; /* console `struct tty *' */ @@ -1299,9 +1300,30 @@ zsioctl(dev, cmd, data, flag, p) zs_modem(cs, 0); break; case TIOCMSET: - case TIOCMGET: + tiocm_to_zs(cs, TIOCMSET, *(int *)data); + break; case TIOCMBIS: + tiocm_to_zs(cs, TIOCMBIS, *(int *)data); + break; case TIOCMBIC: + tiocm_to_zs(cs, TIOCMBIC, *(int *)data); + break; + case TIOCMGET: { + int bits = 0; + u_char m; + + if (cs->cs_preg[5] & ZSWR5_DTR) + bits |= TIOCM_DTR; + if (cs->cs_preg[5] & ZSWR5_RTS) + bits |= TIOCM_RTS; + m = cs->cs_zc->zc_csr; + if (m & ZSRR0_DCD) + bits |= TIOCM_CD; + if (m & ZSRR0_CTS) + bits |= TIOCM_CTS; + *(int *)data = bits; + break; + } default: return (ENOTTY); } @@ -1577,6 +1599,46 @@ zs_loadchannelregs(zc, reg) ZS_WRITE(zc, 5, reg[5]); } +static void +tiocm_to_zs(cs, how, val) + struct zs_chanstate *cs; + int how, val; +{ + int bits = 0, s; + + if (val & TIOCM_DTR); + bits |= ZSWR5_DTR; + if (val & TIOCM_RTS) + bits |= ZSWR5_RTS; + + s = splzs(); + switch (how) { + case TIOCMBIC: + cs->cs_preg[5] &= ~bits; + break; + case TIOCMBIS: + cs->cs_preg[5] |= bits; + break; + case TIOCMSET: + cs->cs_preg[5] &= ~(ZSWR5_RTS | ZSWR5_DTR); + cs->cs_preg[5] |= bits; + break; + } + + if (cs->cs_heldchange == 0) { + if (cs->cs_ttyp->t_state & TS_BUSY) { + cs->cs_heldtbc = cs->cs_tbc; + cs->cs_tbc = 0; + cs->cs_heldchange = 1; + } else { + cs->cs_creg[5] = cs->cs_preg[5]; + ZS_WRITE(cs->cs_zc, 5, cs->cs_creg[5]); + } + } + splx(s); + +} + #ifdef KGDB /* * Get a character from the given kgdb channel. Called at splhigh(). |