chore(hal): streamline rotary encoder definitions (#2550)

radio/src/targets/common/arm/stm32/rotary_encoder_driver.cpp

@@ -91,7 +91,7 @@ void rotaryEncoderCheck()
   static uint8_t state = 0;
   uint8_t pins = ROTARY_ENCODER_POSITION();
 
-#if (defined(RADIO_FAMILY_T16) && !defined(RADIO_T18)) || defined(RADIO_TX12)
+#if defined(ROTARY_ENCODER_SUPPORT_BUGGY_WIRING)
   if (pins != (state & 0x03) && !(readKeys() & (1 << KEY_ENTER))) {
     if ((pins ^ (state & 0x03)) == 0x03) {
       if (pins == 3) {
@@ -111,7 +111,7 @@ void rotaryEncoderCheck()
   }
 #else
   if (pins != state && !(readKeys() & (1 << KEY_ENTER))) {
-#if defined(RADIO_ZORRO) || defined(RADIO_TX12MK2) // def. rotation dir is inverse of other radios
+#if defined(ROTARY_ENCODER_INVERTED)
     if (!(state & 0x01) ^ ((pins & 0x02) >> 1)) {
 #else
     if ((state & 0x01) ^ ((pins & 0x02) >> 1)) {

radio/src/targets/horus/hal.h

@@ -92,6 +92,10 @@
 #define ROTARY_ENCODER_TIMER_IRQn       TIM4_IRQn
 #define ROTARY_ENCODER_TIMER_IRQHandler TIM4_IRQHandler
 
+#if defined(RADIO_FAMILY_T16) && !defined(RADIO_T18)
+  #define ROTARY_ENCODER_SUPPORT_BUGGY_WIRING
+#endif
+
 // Switches
 #define STORAGE_SWITCH_A
 #define HARDWARE_SWITCH_A

radio/src/targets/taranis/hal.h

@@ -249,6 +249,12 @@
   #define ROTARY_ENCODER_EXTI_PortSource   EXTI_PortSourceGPIOE
   #define ROTARY_ENCODER_EXTI_PinSource1   EXTI_PinSource9
   #define ROTARY_ENCODER_EXTI_PinSource2   EXTI_PinSource10
+  #if defined(RADIO_TX12)
+    #define ROTARY_ENCODER_SUPPORT_BUGGY_WIRING
+  #endif
+  #if defined(RADIO_TX12MK2) || defined(RADIO_ZORRO)
+    #define ROTARY_ENCODER_INVERTED
+  #endif
 #endif
 
 #if defined(ROTARY_ENCODER_NAVIGATION)