clean up device main.c demo code

demos/device/keyboard/main.c

@@ -16,6 +16,9 @@
 
 void print_greeting(void);
 
+void led_blinking_task(void * p_para);
+void keyboard_device_app_task(void * p_para);
+
 int main(void)
 {
   uint32_t current_tick = system_ticks;
@@ -28,29 +31,20 @@ int main(void)
   {
     if (current_tick + 1000 < system_ticks)
     {
-      static uint32_t led_on_mask = 0;
-
       current_tick += 1000;
 
-      board_leds(led_on_mask, 1 - led_on_mask);
+      led_blinking_task(NULL);
-      led_on_mask = 1 - led_on_mask; // toggle
 
+      #if TUSB_CFG_DEVICE_HID_KEYBOARD
+      keyboard_device_app_task(NULL);
+      #endif
+
+      #if TUSB_CFG_DEVICE_HID_MOUSE
       if (usb_isConfigured())
       {
-        #if TUSB_CFG_DEVICE_HID_KEYBOARD
-        static uint32_t count =0;
-        if (count < 4)
-        {
-          uint8_t keys[6] = {0x04}; // A character
-          tusbd_hid_keyboard_send_report(0x00, keys, 1);
-          count++;
-        }
-        #endif
-
-        #if TUSB_CFG_DEVICE_HID_MOUSE
           tusb_hid_mouse_send(0, 10, 10);
-        #endif
       }
+      #endif
     }
 
     #if defined TUSB_CFG_DEVICE_CDC && 0
@@ -90,6 +84,30 @@ int main(void)
   return 0;
 }
 
+void led_blinking_task(void * p_para)
+{
+  static uint32_t led_on_mask = 0;
+
+  board_leds(led_on_mask, 1 - led_on_mask);
+  led_on_mask = 1 - led_on_mask; // toggle
+}
+
+#if TUSB_CFG_DEVICE_HID_KEYBOARD
+void keyboard_device_app_task(void * p_para)
+{
+  if (usb_isConfigured())
+  {
+    static uint32_t count =0;
+    if (count < 4)
+    {
+      uint8_t keys[6] = {0x04}; // A character
+      tusbd_hid_keyboard_send_report(0x00, keys, 1);
+      count++;
+    }
+  }
+}
+#endif
+
 //--------------------------------------------------------------------+
 // HELPER FUNCTION
 //--------------------------------------------------------------------+