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Add TIOCSBRK/TIOCCBRK support.

This commit is contained in:
gwr 1994-05-20 05:19:31 +00:00
parent 23f76ae2a2
commit 882edcc1f3
1 changed files with 30 additions and 8 deletions
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38
sys/arch/sun3/dev/zs.c
View File

@ -43,7 +43,7 @@
*
* from: Header: zs.c,v 1.30 93/07/19 23:44:42 torek Exp
* from: sparc/dev/zs.c,v 1.3 1993/10/13 02:36:44 deraadt Exp
* $Id: zs.c,v 1.5 1994/05/06 07:49:20 gwr Exp $
* $Id: zs.c,v 1.6 1994/05/20 05:19:31 gwr Exp $
*/
/*
@ -237,7 +237,7 @@ zsattach(struct device *parent, struct device *dev, void *aux)
zslist = cs;
cs->cs_unit = unit;
cs->cs_zc = &addr->zs_chan[CHAN_A];
cs->cs_zc = &addr->zs_chan[CHAN_A];
cs->cs_speed = zs_getspeed(cs->cs_zc);
#ifdef DEBUG
mon_printf("zs%da speed %d ", zs, cs->cs_speed);
@ -251,7 +251,6 @@ zsattach(struct device *parent, struct device *dev, void *aux)
tp->t_dev = makedev(ZSMAJOR, unit);
tp->t_oproc = zsstart;
tp->t_param = zsparam;
/*tp->t_stop = zsstop;*/
if (cs->cs_zc == zs_conschan) {
/* This unit is the console. */
cs->cs_consio = 1;
@ -291,7 +290,6 @@ zsattach(struct device *parent, struct device *dev, void *aux)
tp->t_dev = makedev(ZSMAJOR, unit);
tp->t_oproc = zsstart;
tp->t_param = zsparam;
/*tp->t_stop = zsstop;*/
if (cs->cs_zc == zs_conschan) {
/* This unit is the console. */
cs->cs_consio = 1;
@ -645,6 +643,14 @@ zsclose(dev_t dev, int flags, int mode, struct proc *p)
/* hold low for 1 second */
(void) tsleep((caddr_t)cs, TTIPRI, ttclos, hz);
}
if (cs->cs_creg[5] & ZSWR5_BREAK)
{
s = splzs();
cs->cs_preg[5] &= ~ZSWR5_BREAK;
cs->cs_creg[5] &= ~ZSWR5_BREAK;
ZS_WRITE(cs->cs_zc, 5, cs->cs_creg[5]);
splx(s);
}
ttyclose(tp);
#ifdef KGDB
/* Reset the speed if we're doing kgdb on this port */
@ -981,7 +987,7 @@ again:
tp->t_state &= ~TS_FLUSH;
else
ndflush(&tp->t_outq,
(char *)cs->cs_tba - tp->t_outq.c_cf);
cs->cs_tba - tp->t_outq.c_cf);
line->l_start(tp);
break;
@ -1017,8 +1023,9 @@ zsioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
{
int unit = minor(dev);
struct zsinfo *zi = zscd.cd_devs[unit >> 1];
register struct tty *tp = zi->zi_cs[unit & 1].cs_ttyp;
register int error;
register struct zs_chanstate *cs = &zi->zi_cs[unit & 1];
register struct tty *tp = cs->cs_ttyp;
register int error, s;
error = linesw[tp->t_line].l_ioctl(tp, cmd, data, flag, p);
if (error >= 0)
@ -1030,9 +1037,24 @@ zsioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
switch (cmd) {
case TIOCSBRK:
/* FINISH ME ... need implicit TIOCCBRK in zsclose as well */
{
s = splzs();
cs->cs_preg[5] |= ZSWR5_BREAK;
cs->cs_creg[5] |= ZSWR5_BREAK;
ZS_WRITE(cs->cs_zc, 5, cs->cs_creg[5]);
splx(s);
break;
}
case TIOCCBRK:
{
s = splzs();
cs->cs_preg[5] &= ~ZSWR5_BREAK;
cs->cs_creg[5] &= ~ZSWR5_BREAK;
ZS_WRITE(cs->cs_zc, 5, cs->cs_creg[5]);
splx(s);
break;
}
case TIOCSDTR: