Improve handling of the display

 - Blank the display when locking to prevent burn-in
 - Delay turning the display on until *exactly* after the first lvgl flush
 - Init the display in the ui task to avoid blocking the rest of boot

2 files changed, 8 insertions, 0 deletions

diff --git a/src/ui/include/ui_events.hpp b/src/ui/include/ui_events.hpp
index 81e0543a..3d794edc 100644
--- a/src/ui/include/ui_events.hpp
+++ b/src/ui/include/ui_events.hpp
@@ -8,7 +8,9 @@
 
 #include <memory>
 #include "database.hpp"
+#include "gpios.hpp"
 #include "index.hpp"
+#include "nvs.hpp"
 #include "screen.hpp"
 #include "tinyfsm.hpp"
 
@@ -32,6 +34,11 @@ struct DumpLuaStack : tinyfsm::Event {};
 
 namespace internal {
 
+struct InitDisplay : tinyfsm::Event {
+  drivers::IGpios& gpios;
+  drivers::NvsStorage& nvs;
+};
+
 struct ReindexDatabase : tinyfsm::Event {};
 
 struct BackPressed : tinyfsm::Event {};
diff --git a/src/ui/include/ui_fsm.hpp b/src/ui/include/ui_fsm.hpp
index 8eafc6e0..325aea8f 100644
--- a/src/ui/include/ui_fsm.hpp
+++ b/src/ui/include/ui_fsm.hpp
@@ -70,6 +70,7 @@ class UiState : public tinyfsm::Fsm<UiState> {
   void react(const system_fsm::KeyLockChanged&);
   void react(const system_fsm::SamdUsbStatusChanged&);
 
+  void react(const internal::InitDisplay&);
   void react(const internal::DismissAlerts&);
 
   void react(const database::event::UpdateStarted&);