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100644 23 lines (16 sloc) 0.618 kb
68396ea @rmustacc Initial commit of d32e8d0b8d9e0ef7cf7ab2e74548982972789dfc from qemu-kvm
rmustacc authored
1 #ifndef __HPET__
2 #define __HPET__ 1
3
4
5
6 struct hpet_info {
7 unsigned long hi_ireqfreq; /* Hz */
8 unsigned long hi_flags; /* information */
9 unsigned short hi_hpet;
10 unsigned short hi_timer;
11 };
12
13 #define HPET_INFO_PERIODIC 0x0001 /* timer is periodic */
14
15 #define HPET_IE_ON _IO('h', 0x01) /* interrupt on */
16 #define HPET_IE_OFF _IO('h', 0x02) /* interrupt off */
17 #define HPET_INFO _IOR('h', 0x03, struct hpet_info)
18 #define HPET_EPI _IO('h', 0x04) /* enable periodic */
19 #define HPET_DPI _IO('h', 0x05) /* disable periodic */
20 #define HPET_IRQFREQ _IOW('h', 0x6, unsigned long) /* IRQFREQ usec */
21
22 #endif /* !__HPET__ */
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