PID Objects & Algo
These are the PID controller implementations for fans,
and thermals. This also includes the PID algorithm used.
Change-Id: I30471fbf7a8a7ed65f78bf105970d62815fedc56
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/pid/fan.hpp b/pid/fan.hpp
new file mode 100644
index 0000000..7792d04
--- /dev/null
+++ b/pid/fan.hpp
@@ -0,0 +1,9 @@
+
+#pragma once
+
+enum class FanSpeedDirection
+{
+ DOWN,
+ UP,
+ NEUTRAL, /* not sure this will ever happen, but for completeness. */
+};