static int
ad1816chan_setformat(kobj_t obj, void *data, u_int32_t format)
{
struct ad1816_chinfo *ch = data;
struct ad1816_info *ad1816 = ch->parent;
int fmt = AD1816_U8, reg;
ad1816_lock(ad1816);
if (ch->dir == PCMDIR_PLAY) {
reg = AD1816_PLAY;
ad1816_write(ad1816, 8, 0x0000); /* reset base and current counter */
ad1816_write(ad1816, 9, 0x0000); /* for playback and capture */
} else {
reg = AD1816_CAPT;
ad1816_write(ad1816, 10, 0x0000);
ad1816_write(ad1816, 11, 0x0000);
}
switch (AFMT_ENCODING(format)) {
case AFMT_A_LAW:
fmt = AD1816_ALAW;
break;
case AFMT_MU_LAW:
fmt = AD1816_MULAW;
break;
case AFMT_S16_LE:
fmt = AD1816_S16LE;
break;
case AFMT_S16_BE:
fmt = AD1816_S16BE;
break;
case AFMT_U8:
fmt = AD1816_U8;
break;
}
if (AFMT_CHANNEL(format) > 1) fmt |= AD1816_STEREO;
io_wr(ad1816, reg, fmt);
ad1816_unlock(ad1816);
#if 0
return format;
#else
return 0;
#endif
}
static int
feed_volume_init(struct pcm_feeder *f)
{
struct feed_volume_info *info;
struct pcmchan_matrix *m;
uint32_t i;
int ret;
if (f->desc->in != f->desc->out ||
AFMT_CHANNEL(f->desc->in) > SND_CHN_MAX)
return (EINVAL);
for (i = 0; i < FEEDVOLUME_TAB_SIZE; i++) {
if (AFMT_ENCODING(f->desc->in) ==
feed_volume_info_tab[i].format) {
info = malloc(sizeof(*info), M_DEVBUF,
M_NOWAIT | M_ZERO);
if (info == NULL)
return (ENOMEM);
info->bps = AFMT_BPS(f->desc->in);
info->channels = AFMT_CHANNEL(f->desc->in);
info->apply = feed_volume_info_tab[i].apply;
info->volume_class = SND_VOL_C_PCM;
info->state = FEEDVOLUME_ENABLE;
f->data = info;
m = feeder_matrix_default_channel_map(info->channels);
if (m == NULL) {
free(info, M_DEVBUF);
return (EINVAL);
}
ret = feeder_volume_apply_matrix(f, m);
if (ret != 0)
free(info, M_DEVBUF);
return (ret);
}
}
return (EINVAL);
}
