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ucm: handle 'set _defaults' command

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2020-05-14 18:32:05 +02:00
parent a570634a22
commit 0c3776a354
2 changed files with 39 additions and 9 deletions
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1
include/use-case.h
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@ -414,6 +414,7 @@ int snd_use_case_geti(snd_use_case_mgr_t *uc_mgr,
*
* Known identifiers:
* - _once - execute the once sequence (value = NULL)
* - _defaults - execute the 'defaults' sequence (value = NULL)
* - _verb - set current verb = value
* - _enadev - enable given device = value
* - _disdev - disable given device = value

47
src/ucm/main.c
View file

@ -530,6 +530,27 @@ static int add_auto_values(snd_use_case_mgr_t *uc_mgr)
return 0;
}
/**
* \brief execute default commands
* \param uc_mgr Use case manager
* \return zero on success, otherwise a negative error code
*/
static int set_defaults(snd_use_case_mgr_t *uc_mgr)
{
int err;
if (uc_mgr->default_list_executed)
return 0;
err = execute_sequence(uc_mgr, &uc_mgr->default_list,
&uc_mgr->value_list, NULL, NULL);
if (err < 0) {
uc_error("Unable to execute default sequence");
return err;
}
uc_mgr->default_list_executed = 1;
return 0;
}
/**
* \brief Import master config and execute the default sequence
* \param uc_mgr Use case manager
@ -838,15 +859,9 @@ static int set_verb(snd_use_case_mgr_t *uc_mgr,
int err;
if (enable) {
if (!uc_mgr->default_list_executed) {
err = execute_sequence(uc_mgr, &uc_mgr->default_list,
&uc_mgr->value_list, NULL, NULL);
if (err < 0) {
uc_error("Unable to execute default sequence");
return err;
}
uc_mgr->default_list_executed = 1;
}
err = set_defaults(uc_mgr);
if (err < 0)
return err;
seq = &verb->enable_list;
} else {
seq = &verb->disable_list;
@ -1848,6 +1863,18 @@ static int set_once_user(snd_use_case_mgr_t *uc_mgr,
return err;
}
static int set_defaults_user(snd_use_case_mgr_t *uc_mgr,
const char *value)
{
int err;
if (value != NULL && *value) {
uc_error("error: wrong value for _defaults (%s)", value);
return -EINVAL;
}
return set_defaults(uc_mgr);
}
static int handle_transition_verb(snd_use_case_mgr_t *uc_mgr,
struct use_case_verb *new_verb)
{
@ -2061,6 +2088,8 @@ int snd_use_case_set(snd_use_case_mgr_t *uc_mgr,
pthread_mutex_lock(&uc_mgr->mutex);
if (strcmp(identifier, "_once") == 0)
err = set_once_user(uc_mgr, value);
else if (strcmp(identifier, "_defaults") == 0)
err = set_defaults_user(uc_mgr, value);
else if (strcmp(identifier, "_verb") == 0)
err = set_verb_user(uc_mgr, value);
else if (strcmp(identifier, "_enadev") == 0)