[LR2021] add DIO and RF switch logic for Nano Edition Mk.II [skip ci]

Author: lyusupov

.github/workflows/main.yml

@@ -421,7 +421,7 @@ jobs:
           if [[ "$BOARD" =~ "nrf54l15clean:nrf54l15clean:" ]]; then
             arduino --pref "boardsmanager.additional.urls=https://raw.githubusercontent.com/lolren/NRF54L15-Clean-Arduino-core/refs/heads/main/package_nrf54l15clean_index.json" --save-prefs ;
             # arduino --pref "boardsmanager.additional.urls=https://github.com/lolren/nrf54-arduino-core/releases/download/v0.7.0/package_nrf54l15clean_index.json" --save-prefs ;
-            arduino --install-boards nrf54l15clean:nrf54l15clean:0.9.208 ;
+            arduino --install-boards nrf54l15clean:nrf54l15clean:0.9.211 ;
             arduino --pref "custom_clean_cpu=xiao_nrf54l15_cpu128" --save-prefs ;
             arduino --pref "custom_clean_vpr=xiao_nrf54l15_off"    --save-prefs ;
             arduino --pref "custom_clean_zigbee=xiao_nrf54l15_off" --save-prefs ;

software/firmware/source/SoftRF/SoftRF.h

@@ -242,6 +242,7 @@ enum
 	SOFTRF_MODEL_RUGGED,
 	SOFTRF_MODEL_PRIME_MK4,
 	SOFTRF_MODEL_RETRO_MK2,
+	SOFTRF_MODEL_NANO_MK2,
 };
 
 enum

software/firmware/source/SoftRF/src/driver/radio/radiolib.cpp

@@ -4924,8 +4924,8 @@ static const uint32_t rfswitch_dio_pins_XY16E3AXP33[] = {
 static const Module::RfSwitchMode_t rfswitch_table_XY16E3AXP33_sub1g[] = {
     // mode                  DIO5 DIO6 DIO7 DIO8
     { LR2021::MODE_STBY,   { LOW, LOW, LOW, LOW  } },
-    { LR2021::MODE_TX,     { LOW, LOW, LOW, HIGH } }, // Sub-1G DIO8 SET HIGH
     { LR2021::MODE_RX,     { LOW, LOW, LOW, LOW  } }, // Sub-1G ALL DIO SET LOW
+    { LR2021::MODE_TX,     { LOW, LOW, LOW, HIGH } }, // Sub-1G DIO8 SET HIGH
     { LR2021::MODE_RX_HF,  { LOW, LOW, LOW, LOW  } },
     { LR2021::MODE_TX_HF,  { LOW, LOW, LOW, LOW  } },
     END_OF_MODE_TABLE,
@@ -4934,8 +4934,8 @@ static const Module::RfSwitchMode_t rfswitch_table_XY16E3AXP33_sub1g[] = {
 static const Module::RfSwitchMode_t rfswitch_table_XY16E3AXP33_2g4[] = {
     // mode                  DIO5  DIO6  DIO7  DIO8
     { LR2021::MODE_STBY,   { LOW,  LOW,  LOW,  LOW } },
-    { LR2021::MODE_TX,     { LOW,  LOW,  LOW,  LOW } },
     { LR2021::MODE_RX,     { LOW,  LOW,  LOW,  LOW } },
+    { LR2021::MODE_TX,     { LOW,  LOW,  LOW,  LOW } },
     { LR2021::MODE_RX_HF,  { LOW,  HIGH, LOW,  LOW } }, // 2.4G RX DIO6 SET HIGH
     { LR2021::MODE_TX_HF,  { LOW,  LOW,  HIGH, LOW } }, // 2.4G TX DIO7 SET HIGH
     END_OF_MODE_TABLE,
@@ -4956,6 +4956,22 @@ static const Module::RfSwitchMode_t rfswitch_table_tdisplay_p4[] = {
     END_OF_MODE_TABLE,
 };
 
+static const uint32_t rfswitch_dio_pins_ELRS[] = {
+    RADIOLIB_LR2021_DIO5, RADIOLIB_LR2021_DIO6,
+    RADIOLIB_LR2021_DIO7, RADIOLIB_LR2021_DIO8,
+    RADIOLIB_NC
+};
+
+static const Module::RfSwitchMode_t rfswitch_table_ELRS[] = {
+    // mode                  DIO5  DIO6  DIO7  DIO8
+    { LR2021::MODE_STBY,   { LOW,  LOW,  LOW,  LOW  } },
+    { LR2021::MODE_RX,     { LOW,  LOW,  LOW,  HIGH } },
+    { LR2021::MODE_TX,     { LOW,  LOW,  HIGH, LOW  } },
+    { LR2021::MODE_RX_HF,  { LOW,  HIGH, LOW,  LOW  } },
+    { LR2021::MODE_TX_HF,  { HIGH, LOW,  LOW,  LOW  } },
+    END_OF_MODE_TABLE,
+};
+
 static const uint32_t rfswitch_dio_pins_seeed_pro[] = {
     RADIOLIB_NC, RADIOLIB_NC,
     RADIOLIB_NC, RADIOLIB_NC,
@@ -5227,6 +5243,10 @@ static void lr20xx_setup()
     radio_g4->irqDioNum =  9; /* DIO9 as IRQ on Ebyte E80-900MBL-02 */
     Vtcxo = 2.2;
     break;
+  case SOFTRF_MODEL_NANO_MK2:
+    radio_g4->irqDioNum =  9; /* DIO9 as IRQ */
+    Vtcxo = 3.3;
+    break;
   default:
     radio_g4->irqDioNum = 11; /* LR2021 DIO11 as IRQ */
     Vtcxo = 1.6;
@@ -5692,6 +5712,11 @@ static void lr20xx_setup()
     /* TODO: Switchless design ? */
     break;
 
+  case SOFTRF_MODEL_NANO_MK2:
+    radio_g4->setRfSwitchTable(rfswitch_dio_pins_ELRS,
+                               rfswitch_table_ELRS);
+    break;
+
   case SOFTRF_MODEL_BADGE:
   case SOFTRF_MODEL_PRIME_MK3:
   default: