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/drivers/usb/wusbcore/pal.c b/kernel/drivers/usb/wusbcore/pal.c
new file mode 100644
index 000000000..090f27371
--- /dev/null
+++ b/kernel/drivers/usb/wusbcore/pal.c
@@ -0,0 +1,56 @@
+/*
+ * Wireless USB Host Controller
+ * UWB Protocol Adaptation Layer (PAL) glue.
+ *
+ * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "wusbhc.h"
+
+static void wusbhc_channel_changed(struct uwb_pal *pal, int channel)
+{
+	struct wusbhc *wusbhc = container_of(pal, struct wusbhc, pal);
+
+	dev_dbg(wusbhc->dev, "%s: channel = %d\n", __func__, channel);
+	if (channel < 0)
+		wusbhc_stop(wusbhc);
+	else
+		wusbhc_start(wusbhc);
+}
+
+/**
+ * wusbhc_pal_register - register the WUSB HC as a UWB PAL
+ * @wusbhc: the WUSB HC
+ */
+int wusbhc_pal_register(struct wusbhc *wusbhc)
+{
+	uwb_pal_init(&wusbhc->pal);
+
+	wusbhc->pal.name   = "wusbhc";
+	wusbhc->pal.device = wusbhc->usb_hcd.self.controller;
+	wusbhc->pal.rc     = wusbhc->uwb_rc;
+	wusbhc->pal.channel_changed = wusbhc_channel_changed;
+
+	return uwb_pal_register(&wusbhc->pal);
+}
+
+/**
+ * wusbhc_pal_unregister - unregister the WUSB HC as a UWB PAL
+ * @wusbhc: the WUSB HC
+ */
+void wusbhc_pal_unregister(struct wusbhc *wusbhc)
+{
+	if (wusbhc->uwb_rc)
+		uwb_pal_unregister(&wusbhc->pal);
+}