diff options
Diffstat (limited to 'include/linux/i8253.h')
| -rw-r--r-- | include/linux/i8253.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/i8253.h b/include/linux/i8253.h index d2cba88f75d6..13048d335368 100644 --- a/include/linux/i8253.h +++ b/include/linux/i8253.h @@ -2,10 +2,24 @@ * 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 */ |