hpet.h (743B)
- /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
- #ifndef __HPET__
- #define __HPET__
- struct hpet_info {
- unsigned long hi_ireqfreq; /* Hz */
- unsigned long hi_flags; /* information */
- unsigned short hi_hpet;
- unsigned short hi_timer;
- };
- #define HPET_INFO_PERIODIC 0x0010 /* periodic-capable comparator */
- #define HPET_IE_ON _IO('h', 0x01) /* interrupt on */
- #define HPET_IE_OFF _IO('h', 0x02) /* interrupt off */
- #define HPET_INFO _IOR('h', 0x03, struct hpet_info)
- #define HPET_EPI _IO('h', 0x04) /* enable periodic */
- #define HPET_DPI _IO('h', 0x05) /* disable periodic */
- #define HPET_IRQFREQ _IOW('h', 0x6, unsigned long) /* IRQFREQ usec */
- #define MAX_HPET_TBS 8 /* maximum hpet timer blocks */
- #endif /* __HPET__ */