Factor out duplicate code.

Author: eightycc

supervisor/shared/bluetooth/bluetooth.c

@@ -10,16 +10,13 @@
 
 #include "shared-bindings/_bleio/__init__.h"
 #include "shared-bindings/_bleio/Adapter.h"
-#if defined(CIRCUITPY_BOOT_BUTTON)
-#include "shared-bindings/digitalio/DigitalInOut.h"
-#include "shared-bindings/time/__init__.h"
-#endif
 #include "shared-bindings/microcontroller/Processor.h"
 #include "shared-bindings/microcontroller/ResetReason.h"
 #include "shared-module/storage/__init__.h"
 
 #include "common-hal/_bleio/__init__.h"
 
+#include "supervisor/port.h"
 #include "supervisor/shared/serial.h"
 #include "supervisor/shared/status_leds.h"
 #include "supervisor/shared/tick.h"
@@ -238,18 +235,10 @@ void supervisor_bluetooth_init(void) {
             new_status_color(BLACK);
         }
         #endif
-        // Init the boot button every time in case it is used for LEDs.
-        #ifdef CIRCUITPY_BOOT_BUTTON
-        digitalio_digitalinout_obj_t boot_button;
-        common_hal_digitalio_digitalinout_construct(&boot_button, CIRCUITPY_BOOT_BUTTON);
-        common_hal_digitalio_digitalinout_switch_to_input(&boot_button, PULL_UP);
-        common_hal_time_delay_ms(1);
-        bool button_pressed = !common_hal_digitalio_digitalinout_get_value(&boot_button);
-        common_hal_digitalio_digitalinout_deinit(&boot_button);
-        if (button_pressed) {
+        if (port_boot_button_pressed()) {
             boot_in_discovery_mode = true;
+            break;
         }
-        #endif
         diff = supervisor_ticks_ms64() - start_ticks;
     }
     if (boot_in_discovery_mode) {