zephyr: sys: gpio: Add configure and pin toggle

Create wrappers for config and pin toggle on the gpios.  This is enough
to allow the blink app to work.

Signed-off-by: David Brown <[email protected]>

Author: d3zd3z

zephyr/src/sys.rs

@@ -125,6 +125,24 @@ pub mod gpio {
                 device: self.pin.port,
             }
         }
+
+        /// Configure a single pin.
+        pub fn configure(&mut self, extra_flags: raw::gpio_flags_t) {
+            // TODO: Error?
+            unsafe {
+                raw::gpio_pin_configure(self.pin.port,
+                    self.pin.pin,
+                    self.pin.dt_flags as raw::gpio_flags_t | extra_flags);
+            }
+        }
+
+        /// Toggle pin level.
+        pub fn toggle_pin(&mut self) {
+            // TODO: Error?
+            unsafe {
+                raw::gpio_pin_toggle_dt(&self.pin);
+            }
+        }
     }
 }