static void
mcd_start(struct mcd_softc *sc)
{
struct bio *bp;
int s = splbio();
if (sc->data.flags & MCDMBXBSY) {
splx(s);
return;
}
bp = bioq_first(&sc->data.head);
if (bp != 0) {
/* block found to process, dequeue */
/*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/
bioq_remove(&sc->data.head, bp);
sc->data.flags |= MCDMBXBSY;
splx(s);
} else {
/* nothing to do */
splx(s);
return;
}
sc->data.mbx.retry = MCD_RETRYS;
sc->data.mbx.bp = bp;
mcd_doread(sc, MCD_S_BEGIN,&(sc->data.mbx));
return;
}
static void
mcd_start(struct mcd_softc *sc)
{
struct bio *bp;
MCD_ASSERT_LOCKED(sc);
if (sc->data.flags & MCDMBXBSY) {
return;
}
bp = bioq_takefirst(&sc->data.head);
if (bp != 0) {
/* block found to process, dequeue */
/*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/
sc->data.flags |= MCDMBXBSY;
} else {
/* nothing to do */
return;
}
sc->data.mbx.retry = MCD_RETRYS;
sc->data.mbx.bp = bp;
mcd_doread(sc, MCD_S_BEGIN,&(sc->data.mbx));
return;
}
/* state machine to process read requests
* initialize with MCD_S_BEGIN: calculate sizes, and read status
* MCD_S_WAITSTAT: wait for status reply, set mode
* MCD_S_WAITMODE: waits for status reply from set mode, set read command
* MCD_S_WAITREAD: wait for read ready, read data
*/
static void
mcd_timeout(void *arg)
{
struct mcd_softc *sc;
sc = (struct mcd_softc *)arg;
mcd_doread(sc, sc->ch_state, sc->ch_mbxsave);
}
/* state machine to process read requests
* initialize with MCD_S_BEGIN: calculate sizes, and read status
* MCD_S_WAITSTAT: wait for status reply, set mode
* MCD_S_WAITMODE: waits for status reply from set mode, set read command
* MCD_S_WAITREAD: wait for read ready, read data
*/
static void
mcd_timeout(void *arg)
{
struct mcd_softc *sc;
sc = (struct mcd_softc *)arg;
MCD_ASSERT_LOCKED(sc);
mcd_doread(sc, sc->ch_state, sc->ch_mbxsave);
}