Add named macros to the board joystick drivers where a shift is needed to maintain...

[pub/USBasp.git] / LUFA / Drivers / Board / EVK527 / Joystick.h

diff --git a/LUFA/Drivers/Board/EVK527/Joystick.h b/LUFA/Drivers/Board/EVK527/Joystick.h
index be8f35a..cab4423 100644 (file)
--- a/LUFA/Drivers/Board/EVK527/Joystick.h
+++ b/LUFA/Drivers/Board/EVK527/Joystick.h
@@ -65,7 +65,9 @@
        #if !defined(__DOXYGEN__)
                /* Macros: */
                        #define JOY_FMASK                 ((1 << 4) | (1 << 5) | (1 << 6) | (1 << 7))
-                       #define JOY_CMASK                 (1 << 6))
+                       #define JOY_CMASK                 (1 << 6)
+                       
+                       #define JOY_PORTC_MASK_SHIFT      3
        #endif
 
        /* Public Interface - May be used in end-application: */
@@ -80,7 +82,7 @@
                        #define JOY_UP                    (1 << 5)
 
                        /** Mask for the joystick being pushed in the downward direction. */
-                       #define JOY_DOWN                 ((1 << 6) >> 3)
+                       #define JOY_DOWN                 ((1 << 6) >> JOY_PORTC_MASK_SHIFT)
 
                        /** Mask for the joystick being pushed inward. */
                        #define JOY_PRESS                 (1 << 6)
@@ -99,7 +101,7 @@
                        static inline uint8_t Joystick_GetStatus(void) ATTR_WARN_UNUSED_RESULT;
                        static inline uint8_t Joystick_GetStatus(void)
                        {
-                               return (((uint8_t)~PINF & JOY_FMASK) | (((uint8_t)~PINC & JOY_CMASK) >> 3));
+                               return (((uint8_t)~PINF & JOY_FMASK) | (((uint8_t)~PINC & JOY_CMASK) >> JOY_PORTC_MASK_SHIFT));
                        }
                #endif