STATIC void
spm_free_priv(queue_t *q)
{
uint t;
spm_t *s = PRIV(q);
ensure(s, return);
if (s->rbid)
unbufcall(xchg(&s->rbid, 0));
if (s->wbid)
unbufcall(xchg(&s->wbid, 0));
if ((*(s->prev) = s->next))
s->next->prev = s->prev;
s->next = NULL;
s->prev = NULL;
if ((t = xchg(&s->wtim, 0)))
untimeout(t);
if ((t = xchg(&s->rtim, 0)))
untimeout(t);
noenable(s->wq);
noenable(s->rq);
assure(s->refcnt == 0);
printd(("spm: unlinked module private structure\n"));
kmem_cache_free(spm_priv_cachep, s);
printd(("spm: freed module private structure\n"));
return;
}
static streamscall int
pckt_qclose(queue_t *q, int oflag, cred_t *crp)
{
struct pckt *p;
qprocsoff(q);
if ((p = (struct pckt *) q->q_ptr)) {
bcid_t bc;
/* atomic exchange for LiS's stupid sake */
if ((bc = xchg(&p->bufcall, 0)))
unbufcall(bc);
kmem_free(p, sizeof(*p));
}
q->q_ptr = WR(q)->q_ptr = NULL;
return (0);
}
/*
* cvc_ioctl()
* handle normal console ioctls.
*/
static void
cvc_ioctl(register queue_t *q, register mblk_t *mp)
{
register cvc_t *cp = q->q_ptr;
int datasize;
int error = 0;
/*
* Let ttycommon_ioctl take the first shot at processing the ioctl. If
* it fails because it can't allocate memory, schedule processing of the
* ioctl later when a proper buffer is available. The mblk that
* couldn't be processed will have been stored in the tty structure by
* ttycommon_ioctl.
*/
datasize = ttycommon_ioctl(&cp->cvc_tty, q, mp, &error);
if (datasize != 0) {
if (cp->cvc_wbufcid) {
unbufcall(cp->cvc_wbufcid);
}
cp->cvc_wbufcid = bufcall(datasize, BPRI_HI, cvc_reioctl, cp);
return;
}
/*
* ttycommon_ioctl didn't do anything, but there's nothing we really
* support either with the exception of TCSBRK, which is supported
* only to appear a bit more like a serial device for software that
* expects TCSBRK to work.
*/
if (error != 0) {
struct iocblk *iocp = (struct iocblk *)mp->b_rptr;
if (iocp->ioc_cmd == TCSBRK) {
miocack(q, mp, 0, 0);
} else {
miocnak(q, mp, 0, EINVAL);
}
} else {
qreply(q, mp);
}
}
/* ARGSUSED */
static int
cvc_close(queue_t *q, int flag, cred_t *crp)
{
register int err = DDI_SUCCESS;
register cvc_t *cp;
mutex_enter(&cvcmutex);
input_ok = 0;
mutex_exit(&cvcmutex);
cp = q->q_ptr;
if (cp->cvc_wbufcid != 0) {
unbufcall(cp->cvc_wbufcid);
}
ttycommon_close(&cp->cvc_tty);
WR(q)->q_ptr = q->q_ptr = NULL;
cvcinput_q = NULL;
bzero((caddr_t)cp, sizeof (cvc_t));
qprocsoff(q);
CVC_DBG0(CVC_DBG_CLOSE, "Un-plumbed successfully");
return (err);
}