Added functions for deep sleep to mbxxx platform.

cpu/stm32w108/board-sensors.h

@@ -0,0 +1,25 @@
+/**
+ * \file
+ *         Declarations for sensor-related functions that are
+ *         common to all stm32w platforms.
+ *
+ *
+ * \author Salvatore Pitrulli <salvopitru@users.sourceforge.net>
+ */
+
+
+/**
+ * Remember state of sensors (if active or not), in order to
+ * resume their original state after calling powerUpSensors().
+ * Useful when entering in sleep mode, since all system
+ * peripherals have to be reinitialized.
+ */
+void sensorsPowerDown();
+
+/**
+ * Resume the state of all on-board sensors on to the state
+ * that they had when sensorsPowerDown() was called.
+ * Useful when sensors have to be used after the micro was put
+ * in deep sleep mode.
+ */
+void sensorsPowerUp();