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