1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI__HPET__
3#define _UAPI__HPET__
4
5#include <linux/compiler.h>
6
7
8struct hpet_info {
9 unsigned long hi_ireqfreq; /* Hz */
10 unsigned long hi_flags; /* information */
11 unsigned short hi_hpet;
12 unsigned short hi_timer;
13};
14
15#define HPET_INFO_PERIODIC 0x0010 /* periodic-capable comparator */
16
17#define HPET_IE_ON _IO('h', 0x01) /* interrupt on */
18#define HPET_IE_OFF _IO('h', 0x02) /* interrupt off */
19#define HPET_INFO _IOR('h', 0x03, struct hpet_info)
20#define HPET_EPI _IO('h', 0x04) /* enable periodic */
21#define HPET_DPI _IO('h', 0x05) /* disable periodic */
22#define HPET_IRQFREQ _IOW('h', 0x6, unsigned long) /* IRQFREQ usec */
23
24#define MAX_HPET_TBS 8 /* maximum hpet timer blocks */
25
26#endif /* _UAPI__HPET__ */
27