interrupts, timer, keyboard, segments, lots of kernel code

[bootcensus] / src / keyb.h

diff --git a/src/keyb.h b/src/keyb.h
new file mode 100644 (file)
index 0000000..6b8f24c
--- /dev/null
+++ b/src/keyb.h
@@ -0,0 +1,42 @@
+#ifndef KEYB_H_
+#define KEYB_H_
+
+#define KB_ANY         (-1)
+#define KB_ALT         (-2)
+#define KB_CTRL                (-3)
+#define KB_SHIFT       (-4)
+
+/* special keys */
+enum {
+       KB_ESC = 27,
+       KB_INSERT, KB_DEL, KB_HOME, KB_END, KB_PGUP, KB_PGDN,
+       KB_LEFT, KB_RIGHT, KB_UP, KB_DOWN,
+       KB_NUM_DOT, KB_NUM_ENTER, KB_NUM_PLUS, KB_NUM_MINUS, KB_NUM_MUL, KB_NUM_DIV,
+       KB_NUM_0, KB_NUM_1, KB_NUM_2, KB_NUM_3, KB_NUM_4,
+       KB_NUM_5, KB_NUM_6, KB_NUM_7, KB_NUM_8, KB_NUM_9,
+       KB_BACKSP = 127,
+
+       KB_LALT, KB_RALT,
+       KB_LCTRL, KB_RCTRL,
+       KB_LSHIFT, KB_RSHIFT,
+       KB_F1, KB_F2, KB_F3, KB_F4, KB_F5, KB_F6,
+       KB_F7, KB_F8, KB_F9, KB_F10, KB_F11, KB_F12,
+       KB_CAPSLK, KB_NUMLK, KB_SCRLK, KB_SYSRQ
+};
+
+void kb_init(void);
+
+/* Boolean predicate for testing the current state of a particular key.
+ * You may also pass KB_ANY to test if any key is held down.
+ */
+int kb_isdown(int key);
+
+/* waits for any keypress */
+void kb_wait(void);
+
+/* removes and returns a single key from the input buffer. */
+int kb_getkey(void);
+
+void kb_putback(int key);
+
+#endif /* KEYB_H_ */