arch: i386: add basic keyboard driver

Add a basic driver for the PS/2 keyboard. This driver just prints
whatever it receives back out to the framebuffer.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/arch/i386/include/kernel/keyboard.h b/arch/i386/include/kernel/keyboard.h
new file mode 100644
index 0000000..8f39a70
--- /dev/null
+++ b/arch/i386/include/kernel/keyboard.h
@@ -0,0 +1,33 @@
+#ifndef I386_KEYBOARD_H
+#define I386_KEYBOARD_H
+
+#include <kernel/isr.h>
+#include <stdint.h>
+
+#define KB_STAT         0x64
+#define KB_DATA         0x60
+
+#define KB_DIB          0x01
+#define KB_SHIFT        (1<<0)
+#define KB_CTL          (1<<1)
+#define KB_ALT          (1<<2)
+#define KB_CPSLK        (1<<3)
+#define KB_NUMLK        (1<<4)
+#define KB_SCLLK        (1<<5)
+#define KB_E0ESC        (1<<6)
+
+#define KB_HOME         0xE0
+#define KB_END          0xE1
+#define KB_UP           0xE2
+#define KB_DOWN         0xE3
+#define KB_LEFT         0xE4
+#define KB_RGHT         0xE5
+#define KB_PGUP         0xE6
+#define KB_PGDN         0xE7
+#define KB_INS          0xE8
+#define KB_DEL          0xE9
+
+char keyboard_getchar(void);
+void keyboard_handler(struct isr_frame *frame);
+
+#endif