From 0a2539650e9e6edd35225258d717104616e118f5 Mon Sep 17 00:00:00 2001
From: Andrew Moroz <andrew.moroz@gmail.com>
Date: Mon, 16 Jan 2023 23:35:56 -0500
Subject: [PATCH] sx126x-rx-boosted-gain: add support for setting Rx gain mode
 on SX126x chipsets

---
 platformio.ini               | 2 +-
 src/mesh/NodeDB.cpp          | 1 +
 src/mesh/SX126xInterface.cpp | 9 +++++++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/platformio.ini b/platformio.ini
index e58656dd2..2b77864aa 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -66,7 +66,7 @@ lib_deps =
   nanopb/Nanopb@^0.4.6
   erriez/ErriezCRC32@^1.0.1
 ;  jgromes/RadioLib@^5.5.1
-  https://github.com/jgromes/RadioLib.git#395844922c5d88d5db0481a9c91479931172428d
+  https://github.com/jgromes/RadioLib.git#7a25b27c3183ffe3627c5c221243c378d8951da7
 
 ; Used for the code analysis in PIO Home / Inspect
 check_tool = cppcheck
diff --git a/src/mesh/NodeDB.cpp b/src/mesh/NodeDB.cpp
index 076f56af6..86e4ca29b 100644
--- a/src/mesh/NodeDB.cpp
+++ b/src/mesh/NodeDB.cpp
@@ -162,6 +162,7 @@ void NodeDB::installDefaultConfig()
     config.has_bluetooth = true;
     config.lora.tx_enabled = true; // FIXME: maybe false in the future, and setting region to enable it. (unset region forces it off)
     config.lora.override_duty_cycle = false; 
+    config.lora.sx126x_rx_boosted_gain = false;
     config.lora.region = Config_LoRaConfig_RegionCode_UNSET;
     config.lora.modem_preset = Config_LoRaConfig_ModemPreset_LONG_FAST;
     config.lora.hop_limit = HOP_RELIABLE;
diff --git a/src/mesh/SX126xInterface.cpp b/src/mesh/SX126xInterface.cpp
index 0e033eeb6..79259d595 100644
--- a/src/mesh/SX126xInterface.cpp
+++ b/src/mesh/SX126xInterface.cpp
@@ -1,5 +1,6 @@
 #include "configuration.h"
 #include "SX126xInterface.h"
+#include "mesh/NodeDB.h"
 #include "error.h"
 
 // Particular boards might define a different max power based on what their hardware can do
@@ -73,6 +74,14 @@ bool SX126xInterface<T>::init()
         res = lora.setDio2AsRfSwitch(true);
 #endif
 
+if (config.lora.sx126x_rx_boosted_gain) {
+    uint16_t result = lora.setRxBoostedGainMode(true);
+    LOG_INFO("Set Rx Boosted Gain mode; result: %d\n", result);
+} else {
+    uint16_t result = lora.setRxBoostedGainMode(false);
+    LOG_INFO("Set Rx Power Saving Gain mode; result: %d\n", result);
+}
+
 #if 0
     // Read/write a register we are not using (only used for FSK mode) to test SPI comms
     uint8_t crcLSB = 0;