include/linux/i8253.h

   1 /*
   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
   4  * for more details.
   5  *
   6  *  Machine specific IO port address definition for generic.
   7  *  Written by Osamu Tomita <tomita@cinet.co.jp>
   8  */
   9 #ifndef __LINUX_I8253_H
  10 #define __LINUX_I8253_H
  11
  12 #include <linux/spinlock.h>
  13 #include <asm/i8253.h>
  14
  15 /* i8253A PIT registers */
  16 #define PIT_MODE        0x43
  17 #define PIT_CH0         0x40
  18 #define PIT_CH2         0x42
  19
  20 #define inb_pit         inb_p
  21 #define outb_pit        outb_p
  22
  23 extern raw_spinlock_t i8253_lock;
  24
  25 #endif /* __LINUX_I8253_H */