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topology: Parse physical DAIs in text conf file

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Add support for parsing physical DAIs in the text configuration file.
The syntax of physical DAIs is described in document in topology.h

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Mengdong Lin 2016-11-16 14:42:33 +08:00 • committed by Takashi Iwai
parent 50c77cdc7f
commit 0b6bd6c19a
6 changed files with 166 additions and 0 deletions
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112
src/topology/pcm.c
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@ -341,6 +341,7 @@ static int tplg_parse_streams(snd_tplg_t *tplg ATTRIBUTE_UNUSED,
snd_config_t *n;
struct tplg_elem *elem = private;
struct snd_soc_tplg_pcm *pcm;
struct snd_soc_tplg_dai *dai;
unsigned int *playback, *capture;
struct snd_soc_tplg_stream_caps *caps;
const char *id, *value;
@ -357,6 +358,14 @@ static int tplg_parse_streams(snd_tplg_t *tplg ATTRIBUTE_UNUSED,
capture = &pcm->capture;
caps = pcm->caps;
break;
case SND_TPLG_TYPE_DAI:
dai = elem->dai;
playback = &dai->playback;
capture = &dai->capture;
caps = dai->caps;
break;
default:
return -EINVAL;
}
@ -557,6 +566,109 @@ int tplg_parse_pcm(snd_tplg_t *tplg,
return 0;
}
/* Parse physical DAI */
int tplg_parse_dai(snd_tplg_t *tplg,
snd_config_t *cfg, void *private ATTRIBUTE_UNUSED)
{
struct snd_soc_tplg_dai *dai;
struct tplg_elem *elem;
snd_config_iterator_t i, next;
snd_config_t *n;
const char *id, *val = NULL;
int err;
elem = tplg_elem_new_common(tplg, cfg, NULL, SND_TPLG_TYPE_DAI);
if (!elem)
return -ENOMEM;
dai = elem->dai;
dai->size = elem->size;
elem_copy_text(dai->dai_name, elem->id,
SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
tplg_dbg(" DAI: %s\n", elem->id);
snd_config_for_each(i, next, cfg) {
n = snd_config_iterator_entry(i);
if (snd_config_get_id(n, &id) < 0)
continue;
/* skip comments */
if (strcmp(id, "comment") == 0)
continue;
if (id[0] == '#')
continue;
if (strcmp(id, "index") == 0) {
if (snd_config_get_string(n, &val) < 0)
return -EINVAL;
elem->index = atoi(val);
tplg_dbg("\t%s: %d\n", id, elem->index);
continue;
}
if (strcmp(id, "id") == 0) {
if (snd_config_get_string(n, &val) < 0)
return -EINVAL;
dai->dai_id = atoi(val);
tplg_dbg("\t%s: %d\n", id, dai->dai_id);
continue;
}
/* stream capabilities */
if (strcmp(id, "pcm") == 0) {
err = tplg_parse_compound(tplg, n,
tplg_parse_streams, elem);
if (err < 0)
return err;
continue;
}
/* flags */
if (strcmp(id, "symmetric_rates") == 0) {
err = parse_flag(n,
SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES,
&dai->flag_mask, &dai->flags);
if (err < 0)
return err;
continue;
}
if (strcmp(id, "symmetric_channels") == 0) {
err = parse_flag(n,
SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS,
&dai->flag_mask, &dai->flags);
if (err < 0)
return err;
continue;
}
if (strcmp(id, "symmetric_sample_bits") == 0) {
err = parse_flag(n,
SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS,
&dai->flag_mask, &dai->flags);
if (err < 0)
return err;
continue;
}
/* private data */
if (strcmp(id, "data") == 0) {
if (snd_config_get_string(n, &val) < 0)
return -EINVAL;
tplg_ref_add(elem, SND_TPLG_TYPE_DATA, val);
tplg_dbg("\t%s: %s\n", id, val);
continue;
}
}
return 0;
}
/* parse physical link runtime supported HW configs in text conf file */
static int parse_hw_config_refs(snd_tplg_t *tplg, snd_config_t *cfg,
struct tplg_elem *elem)