Add agc reset attempt (#8163)

* Add agc reset attempt

* Add radioLibInterface include

* Trunk

* AGC reset don't crash, don't naively call

* Update src/main.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Use Throttle function

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

src/main.cpp

@@ -7,6 +7,7 @@
 #include "NodeDB.h"
 #include "PowerFSM.h"
 #include "PowerMon.h"
+#include "RadioLibInterface.h"
 #include "ReliableRouter.h"
 #include "airtime.h"
 #include "buzz.h"
@@ -193,6 +194,8 @@ bool kb_found = false;
 // global bool to record that on-screen keyboard (OSK) is present
 bool osk_found = false;
 
+unsigned long last_listen = 0;
+
 // The I2C address of the RTC Module (if found)
 ScanI2C::DeviceAddress rtc_found = ScanI2C::ADDRESS_NONE;
 // The I2C address of the Accelerometer (if found)
@@ -1166,6 +1169,12 @@ void loop()
 #endif
     power->powerCommandsCheck();
 
+    if (RadioLibInterface::instance != nullptr && !Throttle::isWithinTimespanMs(last_listen, 1000 * 60) &&
+        !(RadioLibInterface::instance->isSending() || RadioLibInterface::instance->isActivelyReceiving())) {
+        RadioLibInterface::instance->startReceive();
+        LOG_DEBUG("attempting AGC reset");
+    }
+
 #ifdef DEBUG_STACK
     static uint32_t lastPrint = 0;
     if (!Throttle::isWithinTimespanMs(lastPrint, 10 * 1000L)) {

src/main.h

@@ -33,6 +33,7 @@ extern ScanI2C::DeviceAddress cardkb_found;
 extern uint8_t kb_model;
 extern bool kb_found;
 extern bool osk_found;
+extern unsigned long last_listen;
 extern ScanI2C::DeviceAddress rtc_found;
 extern ScanI2C::DeviceAddress accelerometer_found;
 extern ScanI2C::FoundDevice rgb_found;

src/mesh/RadioLibInterface.cpp

@@ -514,6 +514,8 @@ void RadioLibInterface::handleReceiveInterrupt()
 
 void RadioLibInterface::startReceive()
 {
+    // Note the updated timestamp, to avoid unneeded AGC resets
+    last_listen = millis();
     isReceiving = true;
     powerMon->setState(meshtastic_PowerMon_State_Lora_RXOn);
 }