korad-kaxxxxp: factor out ID response lookup in the models table

Introduce a model_lookup() routine so that the table iteration need not
get duplicated across several call sites.

diff --git a/src/hardware/korad-kaxxxxp/api.c b/src/hardware/korad-kaxxxxp/api.c
index d04152af55bfb18de2851b8039a34fc97bd02784..4f66a4c6e6f782cc780fbe5eba5e3f410c845409 100644 (file)
--- a/src/hardware/korad-kaxxxxp/api.c
+++ b/src/hardware/korad-kaxxxxp/api.c
@@ -195,6 +195,30 @@ static gboolean model_matches(const struct korad_kaxxxxp_model *model,
        return TRUE;
 }
 
+/* Lookup a model from an ID response text. */
+static const struct korad_kaxxxxp_model *model_lookup(const char *id_text)
+{
+       size_t idx;
+       const struct korad_kaxxxxp_model *check;
+
+       if (!id_text || !*id_text)
+               return NULL;
+       sr_dbg("Looking up: [%s].", id_text);
+
+       for (idx = 0; idx < ARRAY_SIZE(models); idx++) {
+               check = &models[idx];
+               if (!check->name || !check->name[0])
+                       continue;
+               if (!model_matches(check, id_text))
+                       continue;
+               sr_dbg("Found: [%s] [%s]", check->vendor, check->name);
+               return check;
+       }
+       sr_dbg("Not found");
+
+       return NULL;
+}
+
 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 {
        static const char *serno_prefix = " SN:";
@@ -206,7 +230,6 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
        const char *conn, *serialcomm;
        const char *force_detect;
        struct sr_serial_dev_inst *serial;
-       size_t i;
        char reply[50];
        int ret;
        const struct korad_kaxxxxp_model *model;
@@ -271,26 +294,16 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
                serno += strlen(serno_prefix);
        }
 
-       model = NULL;
-       for (i = 0; models[i].name; i++) {
-               if (!model_matches(&models[i], reply))
-                       continue;
-               model = &models[i];
-               break;
-       }
+       model = model_lookup(reply);
        if (!model && force_detect) {
-               sr_warn("Found unknown model ID '%s', trying '%s' spec.",
+               sr_warn("Could not find model ID '%s', trying '%s'.",
                        reply, force_detect);
-               for (i = 0; models[i].name; i++) {
-                       if (!model_matches(&models[i], force_detect))
-                               continue;
+               model = model_lookup(force_detect);
+               if (model)
                        sr_info("Found replacement, using it instead.");
-                       model = &models[i];
-                       break;
-               }
        }
        if (!model) {
-               sr_err("Found unknown model ID '%s', aborting.", reply);
+               sr_err("Unsupported model ID '%s', aborting.", reply);
                return NULL;
        }
        sr_dbg("Found: %s %s (idx %zu).", model->vendor, model->name,