added IKBD queue code

BaS_gcc/include/user_io.h

@@ -0,0 +1,57 @@
+/*
+* user_io.h
+*
+*/
+
+#ifndef _USER_IO_H_
+#define _USER_IO_H_
+
+#define UIO_STATUS     0x00
+#define UIO_BUT_SW     0x01
+
+// codes as used by minimig (amiga)
+#define UIO_JOYSTICK0  0x02
+#define UIO_JOYSTICK1  0x03
+#define UIO_MOUSE      0x04
+#define UIO_KEYBOARD   0x05
+#define UIO_KBD_OSD    0x06  // keycodes used by OSD only
+
+// codes as used by MiST (atari)
+#define UIO_IKBD_OUT   0x02
+#define UIO_IKBD_IN    0x03
+#define UIO_SERIAL_OUT 0x04
+#define UIO_SERIAL_IN  0x05
+
+#define JOY_RIGHT      0x01
+#define JOY_LEFT       0x02
+#define JOY_DOWN       0x04
+#define JOY_UP         0x08
+#define JOY_BTN1       0x10
+#define JOY_BTN2       0x20
+#define JOY_MOVE       (JOY_RIGHT|JOY_LEFT|JOY_UP|JOY_DOWN)
+
+#define BUTTON1        0x01
+#define BUTTON2        0x02
+#define SWITCH1        0x04
+#define SWITCH2        0x08
+
+// core type value should be unlikely to be returned by broken cores
+#define CORE_TYPE_UNKNOWN   0x55
+#define CORE_TYPE_DUMB      0xa0
+#define CORE_TYPE_MINIMIG   0xa1
+#define CORE_TYPE_PACE      0xa2
+#define CORE_TYPE_MIST      0xa3
+
+void user_io_init();
+void user_io_detect_core_type();
+unsigned char user_io_core_type();
+void user_io_poll();
+int user_io_button_pressed();
+void user_io_osd_key_enable(char);
+
+// hooks from the usb layer
+void user_io_mouse(unsigned char b, char x, char y);
+void user_io_kbd(unsigned char m, unsigned char *k);
+
+#endif /* _USER_IO_H_ */
+