Move SI5351 driver stuff into it's own header

setup.cpp

@@ -8,6 +8,7 @@
 #include "scratch_space.h"
 #include "setup.h"
 #include "settings.h"
+#include "si5351.h"
 #include "tuner.h"
 #include "utils.h"
 

si5351.h

@@ -0,0 +1,5 @@
+#pragma once
+
+void initOscillators();
+void si5351bx_setfreq(uint8_t clknum, uint32_t fout);
+void si5351_set_calibration(int32_t cal); //calibration is a small value that is nudged to make up for the inaccuracies of the reference 25 MHz crystal frequency 

tuner.cpp

@@ -4,6 +4,7 @@
 
 #include "nano_gui.h"
 #include "pin_definitions.h"
+#include "si5351.h"
 
 static const uint32_t THRESHOLD_USB_LSB = 10000000L;
 

tuner.h

@@ -2,7 +2,6 @@
 
 #include "settings.h"
 
-/* these are functions implemented in the main file named as ubitx_xxx.ino */
 void saveVFOs();
 void setFrequency(const unsigned long freq, const bool transmit = false);
 void startTx(TuningMode_e tx_mode);
@@ -13,9 +12,4 @@ void checkCAT();
 void cwKeyer(void);
 void switchVFO(Vfo_e vfoSelect);
 
-/* these are functiosn implemented in ubitx_si5351.cpp */
-void si5351bx_setfreq(uint8_t clknum, uint32_t fout);
-void initOscillators();
-void si5351_set_calibration(int32_t cal); //calibration is a small value that is nudged to make up for the inaccuracies of the reference 25 MHz crystal frequency 
-
 bool autoSelectSidebandChanged(const uint32_t old_frequency); //if the current frequency defaults to a different sideband mode, updates to that sideband mode and returns true. Else, returns false

ubitxv6.ino

@@ -39,6 +39,7 @@
 #include "nano_gui.h"
 #include "settings.h"
 #include "setup.h"
+#include "si5351.h"
 #include "touch.h"
 #include "tuner.h"
 #include "ui_touch.h"