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Diffstat (limited to 'src/topology/pcm.c')
-rw-r--r--src/topology/pcm.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/src/topology/pcm.c b/src/topology/pcm.c
index 6fdf0470..bd70dc95 100644
--- a/src/topology/pcm.c
+++ b/src/topology/pcm.c
@@ -364,6 +364,24 @@ static int tplg_parse_fe_dai(snd_tplg_t *tplg ATTRIBUTE_UNUSED,
return 0;
}
+/* parse a flag bit of the given mask */
+static int parse_flag(snd_config_t *n, unsigned int mask_in,
+ unsigned int *mask, unsigned int *flags)
+{
+ const char *val = NULL;
+
+ if (snd_config_get_string(n, &val) < 0)
+ return -EINVAL;
+
+ *mask |= mask_in;
+ if (strcmp(val, "true") == 0)
+ *flags |= mask_in;
+ else
+ *flags &= ~mask_in;
+
+ return 0;
+}
+
/* Parse pcm (for front end DAI & DAI link) */
int tplg_parse_pcm(snd_tplg_t *tplg,
snd_config_t *cfg, void *private ATTRIBUTE_UNUSED)
@@ -430,6 +448,34 @@ int tplg_parse_pcm(snd_tplg_t *tplg,
return err;
continue;
}
+
+ /* flags */
+ if (strcmp(id, "symmetric_rates") == 0) {
+ err = parse_flag(n,
+ SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES,
+ &pcm->flag_mask, &pcm->flags);
+ if (err < 0)
+ return err;
+ continue;
+ }
+
+ if (strcmp(id, "symmetric_channels") == 0) {
+ err = parse_flag(n,
+ SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS,
+ &pcm->flag_mask, &pcm->flags);
+ if (err < 0)
+ return err;
+ continue;
+ }
+
+ if (strcmp(id, "symmetric_sample_bits") == 0) {
+ err = parse_flag(n,
+ SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS,
+ &pcm->flag_mask, &pcm->flags);
+ if (err < 0)
+ return err;
+ continue;
+ }
}
return 0;
@@ -610,6 +656,9 @@ int tplg_add_pcm_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t)
tplg_add_stream_caps(&pcm->caps[i], pcm_tpl->caps[i]);
}
+ pcm->flag_mask = pcm_tpl->flag_mask;
+ pcm->flags = pcm_tpl->flags;
+
pcm->num_streams = pcm_tpl->num_streams;
for (i = 0; i < pcm_tpl->num_streams; i++)
tplg_add_stream_object(&pcm->stream[i], &pcm_tpl->stream[i]);