2 files changed, 20 insertions, 0 deletions
diff --git a/src/system_fsm/include/system_events.hpp b/src/system_fsm/include/system_events.hpp
index ec202c69..0903cb77 100644
--- a/src/system_fsm/include/system_events.hpp
+++ b/src/system_fsm/include/system_events.hpp
@@ -47,6 +47,19 @@ struct StorageMounted : tinyfsm::Event {
 
 struct StorageError : tinyfsm::Event {};
 
+struct KeyUpChanged : tinyfsm::Event {
+  bool falling;
+};
+struct KeyDownChanged : tinyfsm::Event {
+  bool falling;
+};
+struct KeyLockChanged : tinyfsm::Event {
+  bool falling;
+};
+struct HasPhonesChanged : tinyfsm::Event {
+  bool falling;
+};
+
 namespace internal {
 
 /*
@@ -55,6 +68,12 @@ namespace internal {
  */
 struct ReadyToUnmount : tinyfsm::Event {};
 
+/*
+ * Sent when the actual unmount operation should be performed. Always dispatched
+ * by SysState in response to StoragePrepareToUnmount.
+ */
+struct GpioInterrupt : tinyfsm::Event {};
+
 }  // namespace internal
 
 }  // namespace system_fsm
diff --git a/src/system_fsm/include/system_fsm.hpp b/src/system_fsm/include/system_fsm.hpp
index 037c0a0e..725f2f50 100644
--- a/src/system_fsm/include/system_fsm.hpp
+++ b/src/system_fsm/include/system_fsm.hpp
@@ -38,6 +38,7 @@ class SystemState : public tinyfsm::Fsm<SystemState> {
   void react(const tinyfsm::Event& ev) {}
 
   void react(const FatalError&);
+  void react(const internal::GpioInterrupt&);
 
   virtual void react(const DisplayReady&) {}
   virtual void react(const BootComplete&) {}