tempmodule: report error state by turning on all temperatre LEDs.

1 files changed, 9 insertions, 7 deletions

diff --git a/src/tempmodule/indicator.c b/src/tempmodule/indicator.c
index 4c1b958..2968958 100644
--- a/src/tempmodule/indicator.c
+++ b/src/tempmodule/indicator.c
@@ -28,8 +28,8 @@ struct indicator {
 	unsigned int red;
 	unsigned int green;
 	unsigned int blue;
-	unsigned int current_temp;
-	unsigned int calibration[4];
+	int current_temp;
+	int calibration[4];
 };
 
 static struct indicator state;
@@ -39,9 +39,9 @@ static const unsigned int blueled = 14;	/* D5 */
 
 static void indicator_set_state(unsigned int red, unsigned int green, unsigned int blue);
 
-void indicator_init(unsigned int temp, unsigned int const * const calibration)
+void indicator_init(int temp, unsigned int const * const calibration)
 {
-	static const unsigned int default_calibration[] = {3430, 3330, 3230, 3130};
+	static const int default_calibration[] = {3430, 3330, 3230, 3130};
 
 	pinMode(redled, OUTPUT);
 	pinMode(greenled, OUTPUT);
@@ -57,14 +57,16 @@ void indicator_init(unsigned int temp, unsigned int const * const calibration)
 
 }
 
-void indicator_update(const unsigned int temp, const unsigned int on)
+void indicator_update(const int temp, const unsigned int on)
 {
 	if (!on) {
 		indicator_set_state(0, 0, 0);
 		return;
 	}
 
-	if (temp > state.calibration[0]) {
+	if (temp == -1) {
+		indicator_set_state(1, 1, 1);
+	} else if (temp > state.calibration[0]) {
 		indicator_set_state(1, 0, 0);
 	} else if (temp > state.calibration[1]) {
 		indicator_set_state(1, 1, 0);
@@ -77,7 +79,7 @@ void indicator_update(const unsigned int temp, const unsigned int on)
 	}
 }
 
-void indicator_calibrate(unsigned int const * const calibration)
+void indicator_calibrate(int const * const calibration)
 {
 	memcpy(state.calibration, calibration, sizeof(state.calibration));
 	indicator_update(state.current_temp, 1);