2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Machine specific IO port address definition for generic.
7 * Written by Osamu Tomita <tomita@cinet.co.jp>
9 #ifndef __LINUX_I8253_H
10 #define __LINUX_I8253_H
12 #include <linux/param.h>
13 #include <linux/spinlock.h>
14 #include <linux/timex.h>
15 #include <asm/i8253.h>
17 /* i8253A PIT registers */
22 #define PIT_LATCH ((PIT_TICK_RATE + HZ/2) / HZ)
25 #define outb_pit outb_p
27 extern raw_spinlock_t i8253_lock;
29 #endif /* __LINUX_I8253_H */