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Linux/include/linux/i8253.h

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Diff markup

Differences between /include/linux/i8253.h (Version linux-6.11-rc3) and /include/linux/i8253.h (Version unix-v6-master)


  1 /*                                                  1 
  2  * This file is subject to the terms and condi    
  3  * License.  See the file "COPYING" in the mai    
  4  * for more details.                              
  5  *                                                
  6  *  Machine specific IO port address definitio    
  7  *  Written by Osamu Tomita <tomita@cinet.co.j    
  8  */                                               
  9 #ifndef __LINUX_I8253_H                           
 10 #define __LINUX_I8253_H                           
 11                                                   
 12 #include <linux/param.h>                          
 13 #include <linux/spinlock.h>                       
 14 #include <linux/timex.h>                          
 15                                                   
 16 /* i8253A PIT registers */                        
 17 #define PIT_MODE        0x43                      
 18 #define PIT_CH0         0x40                      
 19 #define PIT_CH2         0x42                      
 20                                                   
 21 #define PIT_LATCH       ((PIT_TICK_RATE + HZ/2    
 22                                                   
 23 extern raw_spinlock_t i8253_lock;                 
 24 extern bool i8253_clear_counter_on_shutdown;      
 25 extern struct clock_event_device i8253_clockev    
 26 extern void clockevent_i8253_init(bool oneshot    
 27                                                   
 28 extern void setup_pit_timer(void);                
 29                                                   
 30 #endif /* __LINUX_I8253_H */                      
 31                                                   

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