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ucm: add _fboot / FixedBootSequence

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Actually, the BootSequence is executed only when the driver controls
(identifiers or value types) are changed. It may be handy to have
also a sequence which is executed at _each_ boot without any condition.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2021-03-05 18:50:02 +01:00
parent 266618088a
commit 9c194a0ba7
5 changed files with 59 additions and 1 deletions
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25
src/ucm/main.c
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@ -594,6 +594,8 @@ static int check_empty_configuration(snd_use_case_mgr_t *uc_mgr)
}
if (!list_empty(&uc_mgr->verb_list))
return 0;
if (!list_empty(&uc_mgr->fixedboot_list))
return 0;
if (!list_empty(&uc_mgr->boot_list))
return 0;
return -ENXIO;
@ -993,6 +995,7 @@ int snd_use_case_mgr_open(snd_use_case_mgr_t **uc_mgr,
if (mgr == NULL)
return -ENOMEM;
INIT_LIST_HEAD(&mgr->verb_list);
INIT_LIST_HEAD(&mgr->fixedboot_list);
INIT_LIST_HEAD(&mgr->boot_list);
INIT_LIST_HEAD(&mgr->default_list);
INIT_LIST_HEAD(&mgr->value_list);
@ -1886,6 +1889,24 @@ int snd_use_case_geti(snd_use_case_mgr_t *uc_mgr,
return err;
}
static int set_fixedboot_user(snd_use_case_mgr_t *uc_mgr,
const char *value)
{
int err;
if (value != NULL && *value) {
uc_error("error: wrong value for _fboot (%s)", value);
return -EINVAL;
}
err = execute_sequence(uc_mgr, &uc_mgr->fixedboot_list,
&uc_mgr->value_list, NULL, NULL);
if (err < 0) {
uc_error("Unable to execute force boot sequence");
return err;
}
return err;
}
static int set_boot_user(snd_use_case_mgr_t *uc_mgr,
const char *value)
{
@ -2125,7 +2146,9 @@ int snd_use_case_set(snd_use_case_mgr_t *uc_mgr,
int err = 0;
pthread_mutex_lock(&uc_mgr->mutex);
if (strcmp(identifier, "_boot") == 0)
if (strcmp(identifier, "_fboot") == 0)
err = set_fixedboot_user(uc_mgr, value);
else if (strcmp(identifier, "_boot") == 0)
err = set_boot_user(uc_mgr, value);
else if (strcmp(identifier, "_defaults") == 0)
err = set_defaults_user(uc_mgr, value);