first commit

1 files changed, 25 insertions, 0 deletions

diff --git a/include/uapi/linux/hpet.h b/include/uapi/linux/hpet.h
new file mode 100644
index 000000000..8af3c70ab
--- /dev/null
+++ b/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__ */