topology: Add support for widget byte controls

Add support for DAPM widgets to include bytes controls.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/src/topology/dapm.c b/src/topology/dapm.c
index 14969eedeea036ad54acf2a1cf0cf3c350d1cd4b..278d6056ead70dcc45809fd402072028afd0fb9e 100644 (file)
--- a/src/topology/dapm.c
+++ b/src/topology/dapm.c
@@ -103,6 +103,28 @@ static int tplg_parse_dapm_enums(snd_config_t *cfg, struct tplg_elem *elem)
        return 0;
 }
 
+static int tplg_parse_dapm_bytes(snd_config_t *cfg, struct tplg_elem *elem)
+{
+       snd_config_iterator_t i, next;
+       snd_config_t *n;
+       const char *value = NULL;
+
+       tplg_dbg(" DAPM Bytes Controls: %s\n", elem->id);
+
+       snd_config_for_each(i, next, cfg) {
+               n = snd_config_iterator_entry(i);
+
+               /* get value */
+               if (snd_config_get_string(n, &value) < 0)
+                       continue;
+
+               tplg_ref_add(elem, SND_TPLG_TYPE_BYTES, value);
+               tplg_dbg("\t\t %s\n", value);
+       }
+
+       return 0;
+}
+
 /* move referenced controls to the widget */
 static int copy_dapm_control(struct tplg_elem *elem, struct tplg_elem *ref)
 {
@@ -567,6 +589,14 @@ int tplg_parse_dapm_widget(snd_tplg_t *tplg,
                        continue;
                }
 
+               if (strcmp(id, "bytes") == 0) {
+                       err = tplg_parse_dapm_bytes(n, elem);
+                       if (err < 0)
+                               return err;
+
+                       continue;
+               }
+
                if (strcmp(id, "data") == 0) {
                        if (snd_config_get_string(n, &val) < 0)
                                return -EINVAL;