Driver API moved to <uavcan/driver/*>

libuavcan/include/uavcan/driver/system_clock.hpp

@@ -0,0 +1,46 @@
+/*
+ * System clock driver interface.
+ * Copyright (C) 2014 Pavel Kirienko <pavel.kirienko@gmail.com>
+ */
+
+#pragma once
+
+#include <uavcan/stdint.hpp>
+#include <uavcan/impl_constants.hpp>
+#include <uavcan/time.hpp>
+
+namespace uavcan
+{
+
+/**
+ * System clock interface - monotonic and UTC.
+ */
+class ISystemClock
+{
+public:
+    virtual ~ISystemClock() { }
+
+    /**
+     * Monototic system clock.
+     * This shall never jump during UTC timestamp adjustments; the base time is irrelevant.
+     * On POSIX systems use clock_gettime() with CLOCK_MONOTONIC.
+     */
+    virtual MonotonicTime getMonotonic() const = 0;
+
+    /**
+     * UTC clock.
+     * This can jump when the UTC timestamp is being adjusted.
+     * Return 0 if the UTC time is not available yet (e.g. the device just started up with no battery clock).
+     * On POSIX systems use gettimeofday().
+     */
+    virtual UtcTime getUtc() const = 0;
+
+    /**
+     * Set the UTC system clock.
+     * @param [in] adjustment Amount of time to add to the clock value.
+     * For POSIX refer to adjtime(), settimeofday().
+     */
+    virtual void adjustUtc(UtcDuration adjustment) = 0;
+};
+
+}