static int
fms_intr(void *arg)
{
struct fms_softc *sc = arg;
#if NMPU > 0
struct mpu_softc *sc_mpu = device_private(sc->sc_mpu_dev);
#endif
uint16_t istat;
mutex_spin_enter(&sc->sc_intr_lock);
istat = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS);
if (istat & FM_INTSTATUS_PLAY) {
if ((sc->sc_play_nextblk += sc->sc_play_blksize) >=
sc->sc_play_end)
sc->sc_play_nextblk = sc->sc_play_start;
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
sc->sc_play_flip++ & 1 ?
FM_PLAY_DMABUF2 : FM_PLAY_DMABUF1, sc->sc_play_nextblk);
if (sc->sc_pintr)
sc->sc_pintr(sc->sc_parg);
else
printf("unexpected play intr\n");
}
if (istat & FM_INTSTATUS_REC) {
if ((sc->sc_rec_nextblk += sc->sc_rec_blksize) >=
sc->sc_rec_end)
sc->sc_rec_nextblk = sc->sc_rec_start;
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
sc->sc_rec_flip++ & 1 ?
FM_REC_DMABUF2 : FM_REC_DMABUF1, sc->sc_rec_nextblk);
if (sc->sc_rintr)
sc->sc_rintr(sc->sc_rarg);
else
printf("unexpected rec intr\n");
}
#if NMPU > 0
if (istat & FM_INTSTATUS_MPU)
mpu_intr(sc_mpu);
#endif
bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS,
istat & (FM_INTSTATUS_PLAY | FM_INTSTATUS_REC));
mutex_spin_exit(&sc->sc_intr_lock);
return 1;
}
int
yds_intr(void *p)
{
struct yds_softc *sc = p;
u_int status;
mtx_enter(&audio_lock);
status = YREAD4(sc, YDS_STATUS);
DPRINTFN(1, ("yds_intr: status=%08x\n", status));
if ((status & (YDS_STAT_INT|YDS_STAT_TINT)) == 0) {
#if 0
if (sc->sc_mpu)
return mpu_intr(sc->sc_mpu);
#endif
mtx_leave(&audio_lock);
return 0;
}
if (status & YDS_STAT_TINT) {
YWRITE4(sc, YDS_STATUS, YDS_STAT_TINT);
printf ("yds_intr: timeout!\n");
}
if (status & YDS_STAT_INT) {
int nbank = (YREAD4(sc, YDS_CONTROL_SELECT) == 0);
/* Clear interrupt flag */
YWRITE4(sc, YDS_STATUS, YDS_STAT_INT);
/* Buffer for the next frame is always ready. */
YWRITE4(sc, YDS_MODE, YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV2);
if (sc->sc_play.intr) {
u_int dma, cpu, blk, len;
/* Sync play slot control data */
bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
sc->pbankoff,
sizeof(struct play_slot_ctrl_bank)*
(*sc->ptbl)*
N_PLAY_SLOT_CTRL_BANK,
BUS_DMASYNC_POSTWRITE|
BUS_DMASYNC_POSTREAD);
dma = sc->pbankp[nbank]->pgstart * sc->sc_play.factor;
cpu = sc->sc_play.offset;
blk = sc->sc_play.blksize;
len = sc->sc_play.length;
if (((dma > cpu) && (dma - cpu > blk * 2)) ||
((cpu > dma) && (dma + len - cpu > blk * 2))) {
/* We can fill the next block */
/* Sync ring buffer for previous write */
bus_dmamap_sync(sc->sc_dmatag,
sc->sc_play.dma->map,
cpu, blk,
BUS_DMASYNC_POSTWRITE);
sc->sc_play.intr(sc->sc_play.intr_arg);
sc->sc_play.offset += blk;
if (sc->sc_play.offset >= len) {
sc->sc_play.offset -= len;
#ifdef DIAGNOSTIC
if (sc->sc_play.offset != 0)
printf ("Audio ringbuffer botch\n");
#endif
}
/* Sync ring buffer for next write */
bus_dmamap_sync(sc->sc_dmatag,
sc->sc_play.dma->map,
cpu, blk,
BUS_DMASYNC_PREWRITE);
}
}
if (sc->sc_rec.intr) {
u_int dma, cpu, blk, len;
/* Sync rec slot control data */
bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
sc->rbankoff,
sizeof(struct rec_slot_ctrl_bank)*
N_REC_SLOT_CTRL*
N_REC_SLOT_CTRL_BANK,
BUS_DMASYNC_POSTWRITE|
BUS_DMASYNC_POSTREAD);
dma = sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr;
cpu = sc->sc_rec.offset;
blk = sc->sc_rec.blksize;
len = sc->sc_rec.length;
if (((dma > cpu) && (dma - cpu > blk * 2)) ||
((cpu > dma) && (dma + len - cpu > blk * 2))) {
/* We can drain the current block */
/* Sync ring buffer first */
bus_dmamap_sync(sc->sc_dmatag,
sc->sc_rec.dma->map,
cpu, blk,
BUS_DMASYNC_POSTREAD);
sc->sc_rec.intr(sc->sc_rec.intr_arg);
sc->sc_rec.offset += blk;
if (sc->sc_rec.offset >= len) {
sc->sc_rec.offset -= len;
#ifdef DIAGNOSTIC
if (sc->sc_rec.offset != 0)
printf ("Audio ringbuffer botch\n");
#endif
}
/* Sync ring buffer for next read */
bus_dmamap_sync(sc->sc_dmatag,
sc->sc_rec.dma->map,
cpu, blk,
BUS_DMASYNC_PREREAD);
}
}
}
mtx_leave(&audio_lock);
return 1;
}
