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 8 struct 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