[lvgl] beautify code

bsp/raspberry-pico/applications/lvgl/lv_port_indev.c

@@ -22,6 +22,8 @@
 #define BUTTON2_PIN        16
 #define BUTTON_WKUP_PIN    20
 
+lv_indev_t * button_indev;
+
 /*Test if `id` button is pressed or not*/
 static bool button_is_pressed(uint8_t id)
 {
@@ -83,9 +85,6 @@ void button_read(lv_indev_drv_t * drv, lv_indev_data_t*data)
     data->btn_id = last_btn;            /*Save the last button*/
 }
 
-
-lv_indev_t * button_indev;
-
 void lv_port_indev_init(void)
 {
     static lv_indev_drv_t indev_drv;

bsp/raspberry-pico/applications/lvgl/lv_port_indev.h

@@ -14,10 +14,6 @@
 extern "C" {
 #endif
 
-#include <lv_hal_indev.h>
-
-extern lv_indev_t * button_indev;
-
 void lv_port_indev_init(void);
 void lv_port_indev_input(rt_int16_t x, rt_int16_t y, lv_indev_state_t state);