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* Cleaned the alsa.conf syntax:

Browse source 
- added pcm.front, pcm.rear, pcm.center_lfe blocks
* Added configuration for EMU10K1 (it's fully working one!!!)
* snd_config_redirect_load->snd_config_refer_load rename
* snd_config_search_alias code change (works also with pairs base.key)
* cleanups in the evaluate function (the function prototype has been changed)
This commit is contained in:
Jaroslav Kysela 2001-06-15 08:47:59 +00:00
parent 1b8d405606
commit 977a9a33f0
25 changed files with 468 additions and 266 deletions
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48
src/control/control.c
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@ -459,32 +459,50 @@ int snd_ctl_open_conf(snd_ctl_t **ctlp, const char *name,
return open_func(ctlp, name, ctl_conf, mode);
}
int snd_ctl_open_noupdate(snd_ctl_t **ctlp, const char *name, int mode)
int snd_ctl_open_noupdate(snd_ctl_t **ctlp, snd_config_t *root, const char *name, int mode)
{
int err;
snd_config_t *ctl_conf;
char *base, *key;
const char *args = strchr(name, ':');
char *base;
if (args) {
args++;
base = alloca(args - name);
memcpy(base, name, args - name - 1);
base[args - name - 1] = 0;
} else
base = (char *) name;
err = snd_config_search_alias(snd_config, "ctl", base, &ctl_conf);
base[args - name - 1] = '\0';
key = strchr(base, '.');
if (key)
*key++ = '\0';
} else {
key = strchr(name, '.');
if (key) {
key++;
base = alloca(key - name);
memcpy(base, name, key - name - 1);
base[key - name - 1] = '\0';
} else
base = (char *) name;
}
if (key == NULL) {
key = base;
base = NULL;
}
err = snd_config_search_alias(root, base, key, &ctl_conf);
if (err < 0) {
SNDERR("Unknown CTL %s", name);
(void)(base == NULL && (err = snd_config_search_alias(root, "ctl", key, &ctl_conf)));
if (err < 0) {
SNDERR("Unknown PCM %s", name);
return err;
}
}
err = snd_config_expand(ctl_conf, args, NULL, &ctl_conf);
if (err < 0) {
SNDERR("Could not expand configuration for %s: %s", name, snd_strerror(err));
return err;
}
if (args) {
err = snd_config_expand(ctl_conf, args, NULL, &ctl_conf);
if (err < 0)
return err;
}
err = snd_ctl_open_conf(ctlp, name, ctl_conf, mode);
if (args)
snd_config_delete(ctl_conf);
snd_config_delete(ctl_conf);
return err;
}
@ -502,7 +520,7 @@ int snd_ctl_open(snd_ctl_t **ctlp, const char *name, int mode)
err = snd_config_update();
if (err < 0)
return err;
return snd_ctl_open_noupdate(ctlp, name, mode);
return snd_ctl_open_noupdate(ctlp, snd_config, name, mode);
}
/**