From 1fc787c0620adb5ad8f1be64e8ed3848fb5b10c9 Mon Sep 17 00:00:00 2001
From: jgromes <jan.gromes@gmail.com>
Date: Mon, 14 Jun 2021 21:15:27 +0200
Subject: [PATCH] [Si443x] Added direct reception support

---
 src/modules/Si443x/Si443x.cpp |  8 ++++++++
 src/modules/Si443x/Si443x.h   | 14 ++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/src/modules/Si443x/Si443x.cpp b/src/modules/Si443x/Si443x.cpp
index 120d1c15..ff533151 100644
--- a/src/modules/Si443x/Si443x.cpp
+++ b/src/modules/Si443x/Si443x.cpp
@@ -571,6 +571,14 @@ int16_t Si443x::getChipVersion() {
   return(_mod->SPIgetRegValue(SI443X_REG_DEVICE_VERSION));
 }
 
+void Si443x::setDirectAction(void (*func)(void)) {
+  setIrqAction(func);
+}
+
+void Si443x::readBit(RADIOLIB_PIN_TYPE pin) {
+  updateDirectBuffer((uint8_t)digitalRead(pin));
+}
+
 int16_t Si443x::setFrequencyRaw(float newFreq) {
   // set mode to standby
   int16_t state = standby();
diff --git a/src/modules/Si443x/Si443x.h b/src/modules/Si443x/Si443x.h
index fe507424..b30a1387 100644
--- a/src/modules/Si443x/Si443x.h
+++ b/src/modules/Si443x/Si443x.h
@@ -799,6 +799,20 @@ class Si443x: public PhysicalLayer {
    */
     int16_t getChipVersion();
 
+    /*!
+      \brief Set interrupt service routine function to call when data bit is receveid in direct mode.
+
+      \param func Pointer to interrupt service routine.
+    */
+    void setDirectAction(void (*func)(void));
+
+    /*!
+      \brief Function to read and process data bit in direct reception mode.
+
+      \param pin Pin on which to read.
+    */
+    void readBit(RADIOLIB_PIN_TYPE pin);
+
 #if !defined(RADIOLIB_GODMODE) && !defined(RADIOLIB_LOW_LEVEL)
   protected:
 #endif