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topology: Add support for vendor tokens

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Vendor can define a token list in SectionVendorTokens. Each token element
is a pair of string ID and integer value. And both the ID and value are
vendor-specific.

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 2016-04-07 15:29:36 +08:00 • committed by Takashi Iwai
parent 768a006089
commit 9b751b38cb
5 changed files with 79 additions and 0 deletions
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50
src/topology/data.c
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@ -253,6 +253,56 @@ static int tplg_parse_data_hex(snd_config_t *cfg, struct tplg_elem *elem,
return ret;
}
/* Parse vendor tokens
*/
int tplg_parse_tokens(snd_tplg_t *tplg, snd_config_t *cfg,
void *private ATTRIBUTE_UNUSED)
{
snd_config_iterator_t i, next;
snd_config_t *n;
const char *id, *value;
struct tplg_elem *elem;
struct tplg_vendor_tokens *tokens;
int num_tokens = 0;
elem = tplg_elem_new_common(tplg, cfg, NULL, SND_TPLG_TYPE_TOKEN);
if (!elem)
return -ENOMEM;
snd_config_for_each(i, next, cfg) {
num_tokens++;
}
if (!num_tokens)
return 0;
tplg_dbg(" Vendor tokens: %s, %d tokens\n", elem->id, num_tokens);
tokens = calloc(1, sizeof(*tokens)
+ num_tokens * sizeof(struct tplg_token));
if (!tokens)
return -ENOMEM;
elem->tokens = tokens;
snd_config_for_each(i, next, cfg) {
n = snd_config_iterator_entry(i);
if (snd_config_get_id(n, &id) < 0)
continue;
if (snd_config_get_string(n, &value) < 0)
continue;
elem_copy_text(tokens->token[tokens->num_tokens].id, id,
SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
tokens->token[tokens->num_tokens].value = atoi(value);
tplg_dbg("\t\t %s : %d\n", tokens->token[tokens->num_tokens].id,
tokens->token[tokens->num_tokens].value);
tokens->num_tokens++;
}
return 0;
}
/* Parse Private data.
*