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topology: pre-process-class: function to get attribute type

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Add a helper function to get attribute type from the
attribute definition and convert them to SND_CONFIG_TYPE_*
values. When no type if provided for an attribute, type
defaults to integer.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Ranjani Sridharan 2021-04-23 13:36:48 -07:00 committed by Jaroslav Kysela
parent 0b0c16d4a7
commit d8e9466e59
2 changed files with 34 additions and 1 deletions
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32
topology/pre-process-class.c
View file

@ -17,6 +17,7 @@
The full GNU General Public License is included in this distribution
in the file called LICENSE.GPL.
*/
#include <assert.h>
#include <limits.h>
#include <stdio.h>
#include <alsa/input.h>
@ -175,3 +176,34 @@ const char *tplg_class_get_unique_attribute_name(struct tplg_pre_processor *tplg
return unique_name;
}
/* get attribute type from the definition */
snd_config_type_t tplg_class_get_attribute_type(struct tplg_pre_processor *tplg_pp,
snd_config_t *attr)
{
snd_config_t *type;
const char *s;
int ret;
/* default to integer if no type is given */
ret = snd_config_search(attr, "type", &type);
if (ret < 0)
return SND_CONFIG_TYPE_INTEGER;
ret = snd_config_get_string(type, &s);
assert(ret >= 0);
if (!strcmp(s, "string"))
return SND_CONFIG_TYPE_STRING;
if (!strcmp(s, "compound"))
return SND_CONFIG_TYPE_COMPOUND;
if (!strcmp(s, "real"))
return SND_CONFIG_TYPE_REAL;
if (!strcmp(s, "integer64"))
return SND_CONFIG_TYPE_INTEGER64;
return SND_CONFIG_TYPE_INTEGER;
}

3
topology/pre-processor.h
View file

@ -37,11 +37,12 @@ bool tplg_class_is_attribute_immutable(const char *attr, snd_config_t *class_cfg
bool tplg_class_is_attribute_unique(const char *attr, snd_config_t *class_cfg);
const char *tplg_class_get_unique_attribute_name(struct tplg_pre_processor *tplg_pp,
snd_config_t *class);
snd_config_type_t tplg_class_get_attribute_type(struct tplg_pre_processor *tplg_pp,
snd_config_t *attr);
/* config helpers */
snd_config_t *tplg_find_config(snd_config_t *config, const char *name);
int tplg_config_make_add(snd_config_t **config, const char *id, snd_config_type_t type,
snd_config_t *parent);
char *tplg_snprintf(char *fmt, ...);
#endif