ucm: parse SectionOnce section in the master UCM configuration file

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/src/ucm/parser.c b/src/ucm/parser.c
index aca5ea8..71a674b 100644 (file)
--- a/src/ucm/parser.c
+++ b/src/ucm/parser.c
@@ -1511,12 +1511,32 @@ static int parse_master_section(snd_use_case_mgr_t *uc_mgr, snd_config_t *cfg,
 }
 
 /*
+ * parse controls which should be run only at initial boot
+ */
+static int parse_controls_once(snd_use_case_mgr_t *uc_mgr, snd_config_t *cfg)
+{
+       int err;
+
+       if (!list_empty(&uc_mgr->once_list)) {
+               uc_error("Once list is not empty");
+               return -EINVAL;
+       }
+       err = parse_sequence(uc_mgr, &uc_mgr->once_list, cfg);
+       if (err < 0) {
+               uc_error("Unable to parse SectionOnce");
+               return err;
+       }
+
+       return 0;
+}
+
+/*
  * parse controls
  */
 static int parse_controls(snd_use_case_mgr_t *uc_mgr, snd_config_t *cfg)
 {
        int err;
-       
+
        if (!list_empty(&uc_mgr->default_list)) {
                uc_error("Default list is not empty");
                return -EINVAL;
@@ -1526,7 +1546,7 @@ static int parse_controls(snd_use_case_mgr_t *uc_mgr, snd_config_t *cfg)
                uc_error("Unable to parse SectionDefaults");
                return err;
        }
-       
+
        return 0;
 }
 
@@ -1558,11 +1578,16 @@ static int parse_controls(snd_use_case_mgr_t *uc_mgr, snd_config_t *cfg)
  *     CaptureCTL "hw:CARD=0"
  * }
  *
+ * # The initial boot (run once) configuration.
+ *
+ * SectionOnce {
+ *      cset "name='Master Playback Switch',index=2 1,1"
+ *     cset "name='Master Playback Volume',index=2 25,25"
+ * }
+ *
  * # This file also stores the default sound card state.
  *
  * SectionDefaults [
- *     cset "name='Master Playback Switch',index=2 1,1"
- *     cset "name='Master Playback Volume',index=2 25,25"
  *     cset "name='Master Mono Playback',index=1 0"
  *     cset "name='Master Mono Playback Volume',index=1 0"
  *     cset "name='PCM Switch',index=2 1,1"
@@ -1636,6 +1661,14 @@ static int parse_master_file(snd_use_case_mgr_t *uc_mgr, snd_config_t *cfg)
                        continue;
                }
 
+               /* find default control values section (first boot only) */
+               if (strcmp(id, "SectionOnce") == 0) {
+                       err = parse_controls_once(uc_mgr, n);
+                       if (err < 0)
+                               return err;
+                       continue;
+               }
+
                /* find default control values section and parse it */
                if (strcmp(id, "SectionDefaults") == 0) {
                        err = parse_controls(uc_mgr, n);

diff --git a/src/ucm/ucm_local.h b/src/ucm/ucm_local.h
index acec4bf..7845758 100644 (file)
--- a/src/ucm/ucm_local.h
+++ b/src/ucm/ucm_local.h
@@ -221,6 +221,9 @@ struct snd_use_case_mgr {
        /* use case verb, devices and modifier configs parsed from files */
        struct list_head verb_list;
 
+       /* boot settings - sequence */
+       struct list_head once_list;
+
        /* default settings - sequence */
        struct list_head default_list;
 

diff --git a/src/ucm/utils.c b/src/ucm/utils.c
index d78ba91..a8febd2 100644 (file)
--- a/src/ucm/utils.c
+++ b/src/ucm/utils.c
@@ -567,6 +567,7 @@ void uc_mgr_free_verb(snd_use_case_mgr_t *uc_mgr)
                list_del(&verb->list);
                free(verb);
        }
+       uc_mgr_free_sequence(&uc_mgr->once_list);
        uc_mgr_free_sequence(&uc_mgr->default_list);
        uc_mgr_free_value(&uc_mgr->value_list);
        free(uc_mgr->comment);