register CCBPtr sp;
{
register struct adspcmd *pb;
- int s;
unsigned short cnt;
char eom = 0;
register gbuf_t *mp;
dPrintf(D_M_ADSP, D_L_TRACE, ("CheckReadQueue: sp=0x%x\n", (unsigned)sp));
KERNEL_DEBUG(DBG_ADSP_READ, 0, sp, sp->rbuf_mb, sp->rpb, sp->delay);
trace_mbufs(D_M_ADSP_LOW, " bCQR m", sp->rbuf_mb);
- ATDISABLE(s, sp->lock);
while (sp->rData && (pb = sp->rpb)) { /* have data */
dPrintf(D_M_ADSP, D_L_TRACE,
sp->sendDataAck = 1;
sp->callSend = 1;
}
- ATENABLE(s, sp->lock);
KERNEL_DEBUG(DBG_ADSP_READ, 0x11, sp, 0, 0, 0);
trace_mbufs(D_M_ADSP_LOW, " eCQR m", sp->rbuf_mb);
register CCBPtr sp;
register struct adspcmd *pb;
{
- int s;
gbuf_t *mp;
gref_t *gref;
dPrintf(D_M_ADSP, D_L_TRACE,
("CheckAttn: sp=0x%x, pb=0x%x\n", (unsigned)sp, (unsigned)pb));
- ATDISABLE(s, sp->lock);
if (mp = sp->attn_mb) {
/*
if (mp) {
SndMsgUp(gref, mp);
}
- ATENABLE(s, sp->lock);
return 0;
}
register struct adspcmd *pb;
{
register gbuf_t *mp;
- int s;
dPrintf(D_M_ADSP, D_L_TRACE,
("adspRead: sp=0x%x, pb=0x%x\n", (unsigned)sp, (unsigned)pb));
/*
* It's OK to read on a closed, or closing session
*/
- ATDISABLE(s, sp->lock);
if (sp->state != sOpen && sp->state != sClosing && sp->state != sClosed) {
- ATENABLE(s, sp->lock);
pb->ioResult = errState;
return EINVAL;
}
if (sp->rData && (sp->rpb == 0)) { /* if data, and no queue of pbs */
qAddToEnd(&sp->rpb, pb); /* deliver data to user directly */
- ATENABLE(s, sp->lock);
CheckReadQueue(sp);
} else if ((pb->u.ioParams.reqCount == 0) && (sp->rpb == 0)) {
/* empty read */
- ATENABLE(s, sp->lock);
pb->ioResult = 0;
adspioc_ack(0, pb->ioc, pb->gref);
return 0;
pb->ioc = 0;
pb->mp = mp;
qAddToEnd(&sp->rpb, pb); /* and queue it for later */
- ATENABLE(s, sp->lock);
} else {
- ATENABLE(s, sp->lock);
pb->ioResult = errDSPQueueSize;
return ENOBUFS;
}