Fix: unified function declarations and definitions, reverted inlining

QA: autoformat

PT6302.c

@@ -32,7 +32,7 @@ inline void PT6302_startup (void)
   PT6302_reset ();
 }
 
-inline void transmit_bit(const uint8_t data)
+static inline void transmit_bit (const uint8_t data)
 {
   PORTB &= ~CLKBpin;
   if ((data & 0x01) == 0)

PT6302.h

@@ -52,7 +52,7 @@ void PT6302_startup (void);
  * Resets the VFD controller trough its reset pin
  * Handles reset delays
  * ---------------------------------------------- */
-inline void PT6302_reset(void);
+void PT6302_reset (void);
 
 /* --------------------------------
  * Transmits the LSB of data
@@ -77,14 +77,14 @@ void transmit_bytes (const uint8_t *payload, uint8_t size);
  * Sets GP1 and GP2 to the values given in the function call
  * Handles the entire communication
  * --------------------------------------------------------- */
-inline void set_ports (uint8_t gp1, uint8_t gp2);
+void set_ports (uint8_t gp1, uint8_t gp2);
 
 /* ---------------------------------------------------------------------------------------
  * Sets the number of digit_count the VFD has
  * digit_count below 9 are interpreted as 9 and digit_count above 16 are interpreted as 16
  * Handles the entire communication
  * --------------------------------------------------------------------------------------- */
-inline void set_digits(uint8_t digit_count);
+void set_digits (uint8_t digit_count);
 
 /* -----------------------------------------------------------
  * Sets duty cycle of controlled VFD
@@ -92,7 +92,7 @@ inline void set_digits(uint8_t digit_count);
  * duty = (brightness + 8)/16 (valid between 8/16 and 15/16)
  * Handles the entire communication
  * ----------------------------------------------------------- */
-inline void set_duty (uint8_t brightness);
+void set_duty (uint8_t brightness);
 
 /* ------------------------------------------------------------------------------------------
  * Set the content of the DCRAM - this will display a character from the CGROM/RAM at address
@@ -131,10 +131,10 @@ void set_ADRAM(uint8_t address, const uint8_t* data, uint8_t size);
  * This is primarily used for testing
  * Handles the entire communication
  * ----------------------------------------- */
-inline void all_on(void);
+void all_on (void);
 
 /* ------------------------------------------
  * Turn all outputs of the VFD controller off
  * Handles the entire communication
  * ------------------------------------------ */
-inline void all_off(void);
+void all_off (void);

main.c

@@ -25,7 +25,6 @@
 #include <util/delay.h>
 #include "PT6302.h"
 
-
 int main ()
 {
   static const uint8_t digitstates[] =