decode: add support for float option data type

Accept decoder options where the value is a floating point number. This
fixes bug #1247 (the "unsupported type" issue reported for sigrok-cli).

diff --git a/decode.c b/decode.c
index 2b95f2346fb2d22d3fd8b5bf4199aa980ba0bd88..2935286f4d5ef92d5acce0894cbed98bfece84cc 100644 (file)
--- a/decode.c
+++ b/decode.c
@@ -38,6 +38,7 @@ static int opts_to_gvar(struct srd_decoder *dec, GHashTable *hash,
        GSList *optl;
        GVariant *gvar;
        gint64 val_int;
+       double val_dbl;
        int ret;
        char *val_str, *conv;
 
@@ -61,6 +62,16 @@ static int opts_to_gvar(struct srd_decoder *dec, GHashTable *hash,
                                break;
                        }
                        gvar = g_variant_new_int64(val_int);
+               } else if (g_variant_is_of_type(o->def, G_VARIANT_TYPE_DOUBLE)) {
+                       conv = NULL;
+                       val_dbl = strtod(val_str, &conv);
+                       if (!conv || conv == val_str || *conv) {
+                               g_critical("Protocol decoder '%s' option '%s' requires a float number.",
+                                       dec->name, o->id);
+                               ret = FALSE;
+                               break;
+                       }
+                       gvar = g_variant_new_double(val_dbl);
                } else {
                        g_critical("Unsupported type for option '%s' (%s)",
                                        o->id, g_variant_get_type_string(o->def));