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ucm: add PlaybackCTL and CaptureCTL default values when they are not set

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2019-11-05 14:21:07 +01:00
parent c01e3d30b8
commit 530e8ea4c6
3 changed files with 76 additions and 28 deletions
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43
src/ucm/main.c
View file

@ -882,6 +882,45 @@ static int set_device(snd_use_case_mgr_t *uc_mgr,
return err;
}
static int add_auto_value(snd_use_case_mgr_t *uc_mgr, const char *key, char *value)
{
char *s;
int err;
err = get_value1(uc_mgr, &value, &uc_mgr->value_list, key);
if (err == -ENOENT) {
s = strdup(value);
if (s == NULL)
return -ENOMEM;
return uc_mgr_add_value(&uc_mgr->value_list, key, s);
} else if (err < 0) {
return err;
}
free(value);
return 0;
}
static int add_auto_values(snd_use_case_mgr_t *uc_mgr)
{
struct ctl_list *ctl_list;
const char *id;
char buf[40];
int err;
ctl_list = uc_mgr_get_one_ctl(uc_mgr);
if (ctl_list) {
id = snd_ctl_card_info_get_id(ctl_list->ctl_info);
snprintf(buf, sizeof(buf), "hw:%s", id);
err = add_auto_value(uc_mgr, "PlaybackCTL", buf);
if (err < 0)
return err;
err = add_auto_value(uc_mgr, "CaptureCTL", buf);
if (err < 0)
return err;
}
return 0;
}
/**
* \brief Init sound card use case manager.
* \param uc_mgr Returned use case manager pointer
@ -920,6 +959,10 @@ int snd_use_case_mgr_open(snd_use_case_mgr_t **uc_mgr,
goto err;
}
err = add_auto_values(mgr);
if (err < 0)
goto err;
*uc_mgr = mgr;
return 0;

59
src/ucm/parser.c
View file

@ -548,6 +548,26 @@ static int parse_sequence(snd_use_case_mgr_t *uc_mgr,
return 0;
}
/*
*
*/
int uc_mgr_add_value(struct list_head *base, const char *key, char *val)
{
struct ucm_value *curr;
curr = calloc(1, sizeof(struct ucm_value));
if (curr == NULL)
return -ENOMEM;
curr->name = strdup(key);
if (curr->name == NULL) {
free(curr);
return -ENOMEM;
}
list_add_tail(&curr->list, base);
curr->data = val;
return 0;
}
/*
* Parse values.
*
@ -564,13 +584,9 @@ static int parse_value(snd_use_case_mgr_t *uc_mgr ATTRIBUTE_UNUSED,
struct list_head *base,
snd_config_t *cfg)
{
struct ucm_value *curr;
snd_config_iterator_t i;
snd_config_t *n;
char buf[64];
long l;
long long ll;
double d;
char *s;
snd_config_type_t type;
int err;
@ -593,35 +609,19 @@ static int parse_value(snd_use_case_mgr_t *uc_mgr ATTRIBUTE_UNUSED,
continue;
}
/* alloc new value */
curr = calloc(1, sizeof(struct ucm_value));
if (curr == NULL)
return -ENOMEM;
list_add_tail(&curr->list, base);
curr->name = strdup(id);
if (curr->name == NULL)
return -ENOMEM;
type = snd_config_get_type(n);
switch (type) {
case SND_CONFIG_TYPE_INTEGER:
snd_config_get_integer(n, &l);
snprintf(buf, sizeof(buf), "%li", l);
__buf:
curr->data = malloc(strlen(buf) + 1);
if (curr->data == NULL)
return -ENOMEM;
strcpy(curr->data, buf);
break;
case SND_CONFIG_TYPE_INTEGER64:
snd_config_get_integer64(n, &ll);
snprintf(buf, sizeof(buf), "%lli", ll);
goto __buf;
case SND_CONFIG_TYPE_REAL:
snd_config_get_real(n, &d);
snprintf(buf, sizeof(buf), "%-16g", d);
goto __buf;
err = snd_config_get_ascii(n, &s);
if (err < 0) {
uc_error("error: unable to parse value for id '%s': %s!", id, snd_strerror(err));
return err;
}
break;
case SND_CONFIG_TYPE_STRING:
err = parse_string(n, &curr->data);
err = parse_string(n, &s);
if (err < 0) {
uc_error("error: unable to parse a string for id '%s'!", id);
return err;
@ -631,6 +631,9 @@ __buf:
uc_error("error: invalid type %i in Value compound '%s'", type, id);
return -EINVAL;
}
err = uc_mgr_add_value(base, id, s);
if (err < 0)
return err;
}
return 0;

2
src/ucm/ucm_local.h
View file

@ -266,6 +266,8 @@ struct ctl_list *uc_mgr_get_one_ctl(snd_use_case_mgr_t *uc_mgr);
snd_ctl_t *uc_mgr_get_ctl(snd_use_case_mgr_t *uc_mgr);
void uc_mgr_free_ctl_list(snd_use_case_mgr_t *uc_mgr);
int uc_mgr_add_value(struct list_head *base, const char *key, char *val);
int uc_mgr_get_substituted_value(snd_use_case_mgr_t *uc_mgr,
char **_rvalue,
const char *value);