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01: #ifndef __HPET__
02: #define __HPET__ 1
03: 
04: 
05: 
06: 
07: struct hpet_info {
08:         unsigned long hi_ireqfreq;      /* Hz */
09:         unsigned long hi_flags; /* information */
10:         unsigned short hi_hpet;
11:         unsigned short hi_timer;
12: };
13: 
14: #define HPET_INFO_PERIODIC      0x0010  /* periodic-capable comparator */
15: 
16: #define HPET_IE_ON      _IO('h', 0x01)  /* interrupt on */
17: #define HPET_IE_OFF     _IO('h', 0x02)  /* interrupt off */
18: #define HPET_INFO       _IOR('h', 0x03, struct hpet_info)
19: #define HPET_EPI        _IO('h', 0x04)  /* enable periodic */
20: #define HPET_DPI        _IO('h', 0x05)  /* disable periodic */
21: #define HPET_IRQFREQ    _IOW('h', 0x6, unsigned long)   /* IRQFREQ usec */
22: 
23: #define MAX_HPET_TBS    8               /* maximum hpet timer blocks */
24: 
25: #endif                          /* !__HPET__ */
26: 

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