/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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#ifndef __HPET__

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#define __HPET__

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struct hpet_info {

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unsigned long hi_ireqfreq; /* Hz */

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unsigned long hi_flags; /* information */

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unsigned short hi_hpet;

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unsigned short hi_timer;

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};

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#define HPET_INFO_PERIODIC 0x0010 /* periodic-capable comparator */

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#define HPET_IE_ON _IO('h', 0x01) /* interrupt on */

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#define HPET_IE_OFF _IO('h', 0x02) /* interrupt off */

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#define HPET_INFO _IOR('h', 0x03, struct hpet_info)

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#define HPET_EPI _IO('h', 0x04) /* enable periodic */

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#define HPET_DPI _IO('h', 0x05) /* disable periodic */

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#define HPET_IRQFREQ _IOW('h', 0x6, unsigned long) /* IRQFREQ usec */

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#define MAX_HPET_TBS 8 /* maximum hpet timer blocks */

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#endif /* __HPET__ */

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