feat: Strlen from fw, turn on green led on squelch open

libs/k5_uv_system/api.s

@@ -43,6 +43,9 @@ BK4819Reset = 0xa7cc + 1;
 .globl IntDivide
 IntDivide = 0x128 + 1;
 
+.globl Strlen
+Strlen = 0x1c0 + 1;
+
 .globl BK4819SetChannelBandwidth
 BK4819SetChannelBandwidth = 0xaa48 + 1;
 

libs/k5_uv_system/system.hpp

@@ -23,6 +23,7 @@ extern "C" {
       void AirCopyFskSetup();
       void BK4819Reset();
       int IntDivide(int s32Divident, int s32Divisor);
+      int Strlen(const char *string);
       void BK4819SetChannelBandwidth(bool narrow);
       void BK4819WriteFrequency(unsigned int u32Frequency);
       void BK4819SetPaGain(unsigned short u16PaBias, unsigned int u32Frequency);

libs/lcd/lcd.hpp

@@ -1,6 +1,7 @@
 #pragma once
 #include <string.h>
 #include <type_traits>
+#include "system.hpp"
 
 struct ILcd {
   virtual void UpdateScreen() = 0;
@@ -161,7 +162,7 @@ public:
   }
 
   void Print(const char *C8String) const {
-    for (unsigned char i = 0; i < strlen(C8String); i++) {
+    for (unsigned char i = 0; i < Strlen(C8String); i++) {
       PrintCharacter(C8String[i]);
     }
   }
@@ -260,7 +261,7 @@ public:
     startIdx = 9 - u8DigsToCut - u8FixedDigtsCnt;
 
     const char *str = U8NumBuff + startIdx;
-    const char len = strlen(str);
+    const char len = Strlen(str);
     const char dot[1] = {64};
     for (unsigned char i = 0; i < len; i++) {
       if (pointAt == len - i) {

src/spectrum_fagci/spectrum.hpp

@@ -214,11 +214,11 @@ public:
 
   void Update() {
     if (peakRssi >= rssiTriggerLevel) {
-      // ToggleGreen(true);
+      ToggleGreen(true);
       Listen();
     }
     if (peakRssi < rssiTriggerLevel) {
-      // ToggleGreen(false);
+      ToggleGreen(false);
       Scan();
     }
   }
@@ -288,14 +288,7 @@ private:
 
   void ResetPeak() { peakRssi = 0; }
 
-  void SetBW() {
+  void SetBW() { BK4819SetChannelBandwidth(mode < 3); }
-    /* auto Reg = BK4819Read(0x43);
-    Reg &= ~(0b11 << 4);
-    if (mode >= 3)
-      Reg |= 0b10 << 4;
-    BK4819Write(0x43, Reg); */
-    BK4819SetChannelBandwidth(mode < 3);
-  }
   void MuteAF() { BK4819Write(0x47, 0); }
   void RestoreOldAFSettings() { BK4819Write(0x47, oldAFSettings); }