int
auvia_build_dma_ops(struct auvia_softc *sc, struct auvia_softc_chan *ch,
struct auvia_dma *p, void *start, void *end, int blksize)
{
struct auvia_dma_op *op;
struct auvia_dma *dp;
bus_addr_t s;
size_t l;
int segs;
s = p->map->dm_segs[0].ds_addr;
l = (vaddr_t)end - (vaddr_t)start;
segs = howmany(l, blksize);
if (segs > AUVIA_DMALIST_MAX) {
panic("%s: build_dma_ops: too many DMA segments",
sc->sc_dev.dv_xname);
}
if (segs > ch->sc_dma_op_count) {
/* if old list was too small, free it */
if (ch->sc_dma_ops)
auvia_free(sc, ch->sc_dma_ops, M_DEVBUF);
ch->sc_dma_ops = auvia_malloc(sc, 0,
sizeof(struct auvia_dma_op) * segs, M_DEVBUF, M_WAITOK);
for (dp = sc->sc_dmas; dp &&
dp->addr != (void *)(ch->sc_dma_ops); dp = dp->next)
;
if (!dp)
panic("%s: build_dma_ops: where'd my memory go??? "
"address (%p)", sc->sc_dev.dv_xname,
ch->sc_dma_ops);
ch->sc_dma_op_count = segs;
ch->sc_dma_ops_dma = dp;
}
op = ch->sc_dma_ops;
while (l) {
op->ptr = htole32(s);
l = l - min(l, blksize);
/* if last block */
op->flags = htole32((l? AUVIA_DMAOP_FLAG : AUVIA_DMAOP_EOL) | blksize);
s += blksize;
op++;
}
return 0;
}
static void *
auvia_malloc(void *addr, int direction, size_t size)
{
struct auvia_softc *sc;
void *p;
sc = addr;
p = auvia_malloc_dmamem(addr, direction, size);
if (p == NULL) {
return NULL;
}
if (auvia_malloc_channel(sc, &sc->sc_play, size) != 0) {
auvia_free(addr, p, size);
return NULL;
}
if (auvia_malloc_channel(sc, &sc->sc_record, size) != 0) {
auvia_free(addr, p, size);
return NULL;
}
return p;
}
static int
auvia_detach(device_t self, int flags)
{
int rc;
struct auvia_softc *sc = device_private(self);
if ((rc = config_detach_children(self, flags)) != 0)
return rc;
pmf_device_deregister(self);
mutex_enter(&sc->sc_lock);
auconv_delete_encodings(sc->sc_encodings);
auconv_delete_encodings(sc->sc_spdif_encodings);
if (sc->codec_if != NULL)
sc->codec_if->vtbl->detach(sc->codec_if);
mutex_exit(&sc->sc_lock);
/* XXX restore compatibility? */
if (sc->sc_ih != NULL)
pci_intr_disestablish(sc->sc_pc, sc->sc_ih);
bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_iosize);
if (sc->sc_play.sc_dma_ops != NULL) {
auvia_free(sc, sc->sc_play.sc_dma_ops,
sc->sc_play.sc_dma_op_count *
sizeof(struct auvia_dma_op));
}
if (sc->sc_record.sc_dma_ops != NULL) {
auvia_free(sc, sc->sc_record.sc_dma_ops,
sc->sc_play.sc_dma_op_count *
sizeof(struct auvia_dma_op));
}
mutex_destroy(&sc->sc_lock);
mutex_destroy(&sc->sc_intr_lock);
return 0;
}
static int
auvia_malloc_channel(struct auvia_softc *sc, struct auvia_softc_chan *ch,
size_t size)
{
struct auvia_dma *dp;
int segs;
/* if old list is large enough, nothing to do */
segs = (size + AUVIA_MINBLKSZ - 1) / AUVIA_MINBLKSZ;
if (segs <= ch->sc_dma_op_count) {
return 0;
}
if (ch->sc_dma_ops) {
auvia_free(sc, ch->sc_dma_ops,
ch->sc_dma_op_count * sizeof(*dp));
}
ch->sc_dma_ops = auvia_malloc_dmamem(sc, 0,
sizeof(struct auvia_dma_op) * segs);
if (ch->sc_dma_ops == NULL) {
aprint_error_dev(sc->sc_dev, "couldn't build dmaops\n");
return ENOMEM;
}
for (dp = sc->sc_dmas;
dp && dp->addr != (void *)(ch->sc_dma_ops);
dp = dp->next)
continue;
if (!dp)
panic("%s: build_dma_ops: where'd my memory go??? "
"address (%p)\n", device_xname(sc->sc_dev),
ch->sc_dma_ops);
ch->sc_dma_op_count = segs;
ch->sc_dma_ops_dma = dp;
return 0;
}
