Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/kernel/include/linux/libps2.h b/kernel/include/linux/libps2.h
new file mode 100644
index 000000000..4ad06e824
--- /dev/null
+++ b/kernel/include/linux/libps2.h
@@ -0,0 +1,56 @@
+#ifndef _LIBPS2_H
+#define _LIBPS2_H
+
+/*
+ * Copyright (C) 1999-2002 Vojtech Pavlik
+ * Copyright (C) 2004 Dmitry Torokhov
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+
+#define PS2_CMD_GETID		0x02f2
+#define PS2_CMD_RESET_BAT	0x02ff
+
+#define PS2_RET_BAT		0xaa
+#define PS2_RET_ID		0x00
+#define PS2_RET_ACK		0xfa
+#define PS2_RET_NAK		0xfe
+#define PS2_RET_ERR		0xfc
+
+#define PS2_FLAG_ACK		1	/* Waiting for ACK/NAK */
+#define PS2_FLAG_CMD		2	/* Waiting for command to finish */
+#define PS2_FLAG_CMD1		4	/* Waiting for the first byte of command response */
+#define PS2_FLAG_WAITID		8	/* Command execiting is GET ID */
+#define PS2_FLAG_NAK		16	/* Last transmission was NAKed */
+
+struct ps2dev {
+	struct serio *serio;
+
+	/* Ensures that only one command is executing at a time */
+	struct mutex cmd_mutex;
+
+	/* Used to signal completion from interrupt handler */
+	wait_queue_head_t wait;
+
+	unsigned long flags;
+	unsigned char cmdbuf[8];
+	unsigned char cmdcnt;
+	unsigned char nak;
+};
+
+void ps2_init(struct ps2dev *ps2dev, struct serio *serio);
+int ps2_sendbyte(struct ps2dev *ps2dev, unsigned char byte, int timeout);
+void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout);
+void ps2_begin_command(struct ps2dev *ps2dev);
+void ps2_end_command(struct ps2dev *ps2dev);
+int __ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command);
+int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command);
+int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data);
+int ps2_handle_response(struct ps2dev *ps2dev, unsigned char data);
+void ps2_cmd_aborted(struct ps2dev *ps2dev);
+int ps2_is_keyboard_id(char id);
+
+#endif /* _LIBPS2_H */