diff options
Diffstat (limited to 'kernel/include/uapi/linux/hpet.h')
| -rw-r--r-- | kernel/include/uapi/linux/hpet.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/kernel/include/uapi/linux/hpet.h b/kernel/include/uapi/linux/hpet.h new file mode 100644 index 000000000..8af3c70ab --- /dev/null +++ b/kernel/include/uapi/linux/hpet.h @@ -0,0 +1,25 @@ +#ifndef _UAPI__HPET__ +#define _UAPI__HPET__ + +#include <linux/compiler.h> + + +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 /* _UAPI__HPET__ */ |