added get_bounded_float function

1 files changed, 17 insertions, 0 deletions

diff --git a/device-functions.c b/device-functions.c
index 79deaf2..24685b9 100644
--- a/device-functions.c
+++ b/device-functions.c
@@ -60,6 +60,23 @@ static void set_shiftreg_bits(int shiftreg, int start_at_bit, int numbits, int v
 #define BIT_HIGH 1
 #define BIT_LOW 0
 
+
+static float get_bounded_float (float val_in, float default_val)
+{
+	// limits returned value within +/- 1 order of magnitude
+
+	if (val_in > 10.0 * default_val) {
+		return default_val;
+	}
+
+	if (val_in < default_val / 10.0) {
+                return default_val;
+        }
+
+	return val_in;
+}
+
+
 void idn_string(gchar** response)
 {
 	*response = g_strdup_printf ("AVTECH ELECTROSYSTEMS,%s,SN:%s,v%s",