keycode.h: Add definitions for keycodes

We encode them 0x00-0x7F: standard keycodes
0x80-0x9F: space for magic fixups in unicode
0xA0+: escape, char sequences

diff --git a/Kernel/include/keycode.h b/Kernel/include/keycode.h
new file mode 100644 (file)
index 0000000..7741210
--- /dev/null
+++ b/Kernel/include/keycode.h
@@ -0,0 +1,52 @@
+#ifndef _KEYCODE_H
+#define _KEYCODE_H
+
+/*
+ *     Standardised keycodes. Used when we have 8bit character maps. Some
+ *     platforms needing unicode symbols may well want to use 16bit maps
+ *     and encode the table differently - please key the same esc/ctrl codes
+ *     however.
+ */
+
+
+#define CTRL(x)                ((x)&0x1F)
+#define ESC(x)         (0x80|(x))
+
+#define KEY_DEL                0x7F
+#define KEY_BS         CTRL('H')
+#define KEY_ESC                CTRL('[')
+
+#define KEY_LEFT       ESC('D')
+#define KEY_RIGHT      ESC('C')
+#define KEY_UP         ESC('A')
+#define KEY_DOWN       ESC('B')
+
+#define KEY_HOME       ESC('H')
+#define KEY_INSERT     ESC('i')
+#define KEY_COPY       ESC('c')
+#define KEY_PASTE      ESC('v')
+#define KEY_CUT                ESC('x')
+#define KEY_CANCEL     ESC('a')
+#define KEY_EXTRA      ESC('e')
+#define KEY_PRINT      ESC(']')
+#define KEY_STOP       CTRL('C')
+
+#define KEY_F1         ESC('1')
+#define KEY_F2         ESC('2')
+#define KEY_F3         ESC('3')
+#define KEY_F4         ESC('4')
+#define KEY_F5         ESC('5')
+#define KEY_F6         ESC('6')
+#define KEY_F7         ESC('7')
+#define KEY_F8         ESC('8')
+#define KEY_F9         ESC('9')
+#define KEY_F10                ESC('0')
+
+/* Specials that vt.c will expand - in the range 0x80-0x9F. These are the odd
+   2 byte codes that sneak into UK and US type keyboards */
+
+#define KEY_POUND      0x80
+#define KEY_HALF       0x81
+#define KEY_EURO       0x82
+
+#endif