From e3c07411cbcd7d2dd1dca9ef06b17b785e3ad070 Mon Sep 17 00:00:00 2001
From: Siwat Sirichai <siwat@siwatinc.com>
Date: Sat, 2 Dec 2023 21:06:46 +0700
Subject: [PATCH] allow preloading virtual interrupt buffer

---
 src/espmega_iot_core.cpp | 9 +++++++++
 src/espmega_iot_core.hpp | 1 +
 src/user_code.hpp        | 3 +++
 3 files changed, 13 insertions(+)

diff --git a/src/espmega_iot_core.cpp b/src/espmega_iot_core.cpp
index e895f15..c2267d1 100644
--- a/src/espmega_iot_core.cpp
+++ b/src/espmega_iot_core.cpp
@@ -171,6 +171,9 @@ void setup()
   Wire.setClock(400000);
 #endif
   io_begin();
+#ifdef VIRTUAL_INTERRUPT_PRELOAD
+  virtual_interrupt_preload();
+#endif
   eeprom_retrieve_init();
   user_pre_init();
 #ifdef ENABLE_INTERNAL_LCD
@@ -2186,3 +2189,9 @@ bool dac_get_state(int id)
 }
 
 #endif
+
+void virtual_interrupt_preload() {
+  for (int i = 0; i < 16; i++) {
+    virtual_interupt_state[i] = ESPMega_digitalRead(virtual_interrupt_pins[i]);
+  }
+}
\ No newline at end of file
diff --git a/src/espmega_iot_core.hpp b/src/espmega_iot_core.hpp
index f0b63af..bf277ec 100644
--- a/src/espmega_iot_core.hpp
+++ b/src/espmega_iot_core.hpp
@@ -46,6 +46,7 @@
 void mqtt_callback(char* topic, byte* payload, unsigned int length);
 void virtual_interrupt_loop();
 void virtual_interrupt_callback(int pin, int state);
+void virtual_interrupt_preload();
 void network_begin();
 void mqtt_connect();
 void mqtt_subscribe();
diff --git a/src/user_code.hpp b/src/user_code.hpp
index 9de5311..94f92b5 100644
--- a/src/user_code.hpp
+++ b/src/user_code.hpp
@@ -12,6 +12,9 @@
 //#define OVERCLOCK_FM
 //#define OVERCLOCK_FM2
 
+// I/O Configuration
+#define VIRTUAL_INTERRUPT_PRELOAD // Preload Virtual Interrupts buffer
+
 // Enable Software Module(s)
 #define ENABLE_INTERNAL_LCD
 #define ENABLE_IR_MODULE