| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| 2 | #ifndef __HPET__ |
| 3 | #define __HPET__ |
| 4 | |
| 5 | |
| 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 /* __HPET__ */ |