Merge branch 'leds' into 'master'

leds: add support for the rocket LEDs

See merge request !21

card10-l0dable/src/leds.rs

@@ -30,3 +30,26 @@ where
         }
     }
 }
+
+/// Set powersave mode for the RGB leds
+///
+/// Setting powersave mode disables the LEDs, saving
+/// ~15 mA
+pub fn set_rgb_leds_powersave(v: bool) {
+    unsafe { epic_leds_set_powersave(v); }
+}
+
+#[repr(i32)]
+pub enum Rocket {
+    Blue = 0,
+    Yellow = 1,
+    Green = 2,
+}
+
+/// Set one of the rocket LEDs to the desired brightness.
+///
+/// Brightness should be 0 - 31; larger values will be clamped.
+pub fn set_rocket(r: Rocket, brightness: u8) {
+    let v = if brightness > 31{31} else {brightness}; // clamp
+    unsafe { epic_leds_set_rocket(r as i32, v) }
+}

example/src/main.rs

@@ -25,6 +25,10 @@ fn run() -> Result<(), Error> {
     let g = BHI160::<Gyroscope>::start()?;
     let o = BHI160::<Orientation>::start()?;
 
+    set_rocket(Rocket::Blue, 20);
+    set_rocket(Rocket::Yellow, 20);
+    set_rocket(Rocket::Green, 10);
+
     let display = Display::open();
     let light = LightSensor::start();