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, 66 insertions, 0 deletions

diff --git a/kernel/drivers/isdn/hisax/hisax_if.h b/kernel/drivers/isdn/hisax/hisax_if.h
new file mode 100644
index 000000000..7098d6bd5
--- /dev/null
+++ b/kernel/drivers/isdn/hisax/hisax_if.h
@@ -0,0 +1,66 @@
+/*
+ * Interface between low level (hardware) drivers and
+ * HiSax protocol stack
+ *
+ * Author       Kai Germaschewski
+ * Copyright    2001 by Kai Germaschewski  <kai.germaschewski@gmx.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#ifndef __HISAX_IF_H__
+#define __HISAX_IF_H__
+
+#include <linux/skbuff.h>
+
+#define REQUEST		0
+#define CONFIRM		1
+#define INDICATION	2
+#define RESPONSE	3
+
+#define PH_ACTIVATE	0x0100
+#define PH_DEACTIVATE	0x0110
+#define PH_DATA		0x0120
+#define PH_PULL		0x0130
+#define PH_DATA_E	0x0140
+
+#define L1_MODE_NULL	0
+#define L1_MODE_TRANS	1
+#define L1_MODE_HDLC	2
+#define L1_MODE_EXTRN	3
+#define L1_MODE_HDLC_56K 4
+#define L1_MODE_MODEM	7
+#define L1_MODE_V32	8
+#define L1_MODE_FAX	9
+
+struct hisax_if {
+	void *priv; // private to driver
+	void (*l1l2)(struct hisax_if *, int pr, void *arg);
+	void (*l2l1)(struct hisax_if *, int pr, void *arg);
+};
+
+struct hisax_b_if {
+	struct hisax_if ifc;
+
+	// private to hisax
+	struct BCState *bcs;
+};
+
+struct hisax_d_if {
+	struct hisax_if ifc;
+
+	// private to hisax
+	struct module *owner;
+	struct IsdnCardState *cs;
+	struct hisax_b_if *b_if[2];
+	struct sk_buff_head erq;
+	unsigned long ph_state;
+};
+
+int hisax_register(struct hisax_d_if *hisax_if, struct hisax_b_if *b_if[],
+		   char *name, int protocol);
+void hisax_unregister(struct hisax_d_if *hisax_if);
+
+#endif