drivers: Factor out std_*_idx*().

[libsigrok.git] / src / hardware / demo / api.c

diff --git a/src/hardware/demo/api.c b/src/hardware/demo/api.c
index e3fa63b54a2f69042b72332daf1d5ce06b6b1356..5c1543cb1113229ff7849eaa8d4b1352ef9dff70 100644 (file)
--- a/src/hardware/demo/api.c
+++ b/src/hardware/demo/api.c
@@ -265,8 +265,6 @@ static int config_set(uint32_t key, GVariant *data,
        struct sr_channel *ch;
        GSList *l;
        int logic_pattern, analog_pattern;
-       unsigned int i;
-       const char *stropt;
 
        devc = sdi->priv;
 
@@ -293,21 +291,9 @@ static int config_set(uint32_t key, GVariant *data,
        case SR_CONF_PATTERN_MODE:
                if (!cg)
                        return SR_ERR_CHANNEL_GROUP;
-               stropt = g_variant_get_string(data, NULL);
-               logic_pattern = analog_pattern = -1;
-               for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) {
-                       if (!strcmp(stropt, logic_pattern_str[i])) {
-                               logic_pattern = i;
-                               break;
-                       }
-               }
-               for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) {
-                       if (!strcmp(stropt, analog_pattern_str[i])) {
-                               analog_pattern = i;
-                               break;
-                       }
-               }
-               if (logic_pattern == -1 && analog_pattern == -1)
+               logic_pattern = std_str_idx(data, ARRAY_AND_SIZE(logic_pattern_str));
+               analog_pattern = std_str_idx(data, ARRAY_AND_SIZE(analog_pattern_str));
+               if (logic_pattern < 0 && analog_pattern < 0)
                        return SR_ERR_ARG;
                for (l = cg->channels; l; l = l->next) {
                        ch = l->data;