summaryrefslogtreecommitdiff
path: root/include/linux/i8253.h
blob: 13048d33536859183e2e2ab9cbcee892761db861 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 *  Machine specific IO port address definition for generic.
 *  Written by Osamu Tomita <tomita@cinet.co.jp>
 */
#ifndef __LINUX_I8253_H
#define __LINUX_I8253_H

#include <linux/spinlock.h>
#include <asm/i8253.h>

/* i8253A PIT registers */
#define PIT_MODE	0x43
#define PIT_CH0		0x40
#define PIT_CH2		0x42

#define inb_pit         inb_p
#define outb_pit        outb_p

extern raw_spinlock_t i8253_lock;

#endif /* __LINUX_I8253_H */