Fix Selectable Buzzer Pin for CC3D

src/main/drivers/sound_beeper.c

@@ -33,21 +33,23 @@
 
 void (*systemBeepPtr)(bool onoff) = NULL;
 
+static uint16_t beeperPin;
+
 static void beepNormal(bool onoff)
 {
     if (onoff) {
-        digitalLo(BEEP_GPIO, BEEP_PIN);
+        digitalLo(BEEP_GPIO, beeperPin);
     } else {
-        digitalHi(BEEP_GPIO, BEEP_PIN);
+        digitalHi(BEEP_GPIO, beeperPin);
     }
 }
 
 static void beepInverted(bool onoff)
 {
     if (onoff) {
-        digitalHi(BEEP_GPIO, BEEP_PIN);
+        digitalHi(BEEP_GPIO, beeperPin);
     } else {
-        digitalLo(BEEP_GPIO, BEEP_PIN);
+        digitalLo(BEEP_GPIO, beeperPin);
     }
 }
 #endif
@@ -61,8 +63,17 @@ void systemBeep(bool onoff)
 #endif
 }
 
-void beeperInit(beeperConfig_t *config)
-{
+#ifdef CC3D
+void beeperInit(beeperConfig_t *config, uint8_t use_buzzer_p6) {
+	if (use_buzzer_p6) {
+        beeperPin = Pin_2;
+	} else {
+        beeperPin = BEEP_PIN;
+	}
+#else
+void beeperInit(beeperConfig_t *config) {
+	beeperPin = BEEP_PIN;
+#endif
 #ifndef BEEPER
     UNUSED(config);
 #else

src/main/drivers/sound_beeper.h

@@ -36,6 +36,10 @@ typedef struct beeperConfig_s {
 } beeperConfig_t;
 
 void systemBeep(bool onoff);
+#ifdef CC3D
+void beeperInit(beeperConfig_t *beeperConfig, uint8_t use_buzzer_p6);
+#else
 void beeperInit(beeperConfig_t *beeperConfig);
+#endif
 
 void initBeeperHardware(beeperConfig_t *config);

src/main/main.c

@@ -303,9 +303,15 @@ void init(void)
         beeperConfig.isInverted = true;
     }
 #endif
+#ifdef CC3D
+    if (masterConfig.use_buzzer_p6 == 1)
+        beeperConfig.gpioPin = Pin_2;
 
+    beeperInit(&beeperConfig, masterConfig.use_buzzer_p6);
+#else
     beeperInit(&beeperConfig);
 #endif
+#endif
 
 #ifdef INVERTER
     initInverter();

src/main/target/CC3D/target.h

@@ -30,11 +30,7 @@
 //#define BEEPER_PIN6 // Uncomment this line for hexacopter configurations where PIN6 is needed for motor
 
 #define BEEP_GPIO GPIOA
-#ifdef BEEPER_PIN6
-#define BEEP_PIN Pin_2 // PA2 (Beeper)
-#else
 #define BEEP_PIN Pin_15 // PA15 (Beeper)
-#endif
 #define BEEP_PERIPHERAL RCC_APB2Periph_GPIOA
 
 #define MPU6000_CS_GPIO       GPIOA