Add high level ld_drive mod

- Use current_source driver to interface with the board

src/laser_diode/ld_drive.rs

@@ -0,0 +1,51 @@
+use miniconf::Miniconf;
+use crate::laser_diode::current_sources::CurrentSource;
+
+use uom::si::{
+    electric_current::{milliampere},
+    f64::ElectricCurrent,
+};
+
+#[derive(Clone, Debug, Miniconf)]
+pub struct Settings {
+    pub ld_drive_current: ElectricCurrent,
+}
+
+impl Default for Settings {
+    fn default() -> Self {
+        Self {
+            ld_drive_current: ElectricCurrent::new::<milliampere>(0.0),
+        }
+    }
+}
+
+pub struct LD_Drive{
+    ctrl: CurrentSource,
+    settings: Settings,
+}
+
+impl LD_Drive{
+    pub fn new(current_source: CurrentSource)-> Self{
+        LD_Drive {
+            ctrl: current_source,
+            settings: Settings::default()
+        }
+    }
+
+    pub fn power_up(&mut self){
+        self.ctrl.power_up();
+    }
+
+    pub fn power_down(&mut self){
+        self.ctrl.power_down();
+    }
+
+    pub fn ld_short(&mut self) {
+        self.ctrl.ld_short_enable();
+    }
+
+    pub fn ld_open(&mut self) {
+        self.ctrl.ld_short_disable();
+    }
+
+}

src/laser_diode/mod.rs

@@ -1,2 +1,3 @@
 pub mod current_sources;
 pub mod max5719;
+pub mod ld_drive;