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ucm: handle 'set _once' command

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2020-05-14 16:23:17 +02:00
parent afb5a9cf61
commit a570634a22
2 changed files with 22 additions and 1 deletions
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1
include/use-case.h
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@ -413,6 +413,7 @@ int snd_use_case_geti(snd_use_case_mgr_t *uc_mgr,
* \return Zero if success, otherwise a negative error code
*
* Known identifiers:
* - _once - execute the once sequence (value = NULL)
* - _verb - set current verb = value
* - _enadev - enable given device = value
* - _disdev - disable given device = value

22
src/ucm/main.c
View file

@ -1830,6 +1830,24 @@ int snd_use_case_geti(snd_use_case_mgr_t *uc_mgr,
return err;
}
static int set_once_user(snd_use_case_mgr_t *uc_mgr,
const char *value)
{
int err;
if (value != NULL && *value) {
uc_error("error: wrong value for _once (%s)", value);
return -EINVAL;
}
err = execute_sequence(uc_mgr, &uc_mgr->once_list,
&uc_mgr->value_list, NULL, NULL);
if (err < 0) {
uc_error("Unable to execute once sequence");
return err;
}
return err;
}
static int handle_transition_verb(snd_use_case_mgr_t *uc_mgr,
struct use_case_verb *new_verb)
{
@ -2041,7 +2059,9 @@ int snd_use_case_set(snd_use_case_mgr_t *uc_mgr,
int err = 0;
pthread_mutex_lock(&uc_mgr->mutex);
if (strcmp(identifier, "_verb") == 0)
if (strcmp(identifier, "_once") == 0)
err = set_once_user(uc_mgr, value);
else if (strcmp(identifier, "_verb") == 0)
err = set_verb_user(uc_mgr, value);
else if (strcmp(identifier, "_enadev") == 0)
err = set_device_user(uc_mgr, value, 1);