input: add BUTTON(n) define for the button byte

diff --git a/Kernel/include/input.h b/Kernel/include/input.h
index 6c936d1..907b257 100644 (file)
--- a/Kernel/include/input.h
+++ b/Kernel/include/input.h
@@ -13,8 +13,10 @@
                                            bits show u/d and 3 spare bits */
 #define                KEYPRESS_DOWN   0x00
 #define                KEYPRESS_UP     0x01
+#define        LIGHTPEN_ABS    0x50            /* Light pen or similar, 16 x 16bit virtual coords */
 
-#define BUTTONS(x)     ((x)&0x0F)      /* 1-4 buttons */
+#define BUTTON(x)      (1 << (x))      /* Button 1-7 (top bit never used) */
+#define BUTTONS(x)     ((x)&0x07)      /* 0-7 buttons */
 
 
 #define INPUT_GRABKB   0x0520