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, 64 insertions, 0 deletions

diff --git a/kernel/drivers/net/wireless/rtl818x/rtl8187/rfkill.c b/kernel/drivers/net/wireless/rtl818x/rtl8187/rfkill.c
new file mode 100644
index 000000000..341167199
--- /dev/null
+++ b/kernel/drivers/net/wireless/rtl818x/rtl8187/rfkill.c
@@ -0,0 +1,64 @@
+/*
+ * Linux RFKILL support for RTL8187
+ *
+ * Copyright (c) 2009 Herton Ronaldo Krzesinski <herton@mandriva.com.br>
+ *
+ * Based on the RFKILL handling in the r8187 driver, which is:
+ * Copyright (c) Realtek Semiconductor Corp. All rights reserved.
+ *
+ * Thanks to Realtek for their support!
+ *
+ * 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.
+ */
+
+#include <linux/types.h>
+#include <linux/usb.h>
+#include <net/mac80211.h>
+
+#include "rtl8187.h"
+#include "rfkill.h"
+
+static bool rtl8187_is_radio_enabled(struct rtl8187_priv *priv)
+{
+	u8 gpio;
+
+	gpio = rtl818x_ioread8(priv, &priv->map->GPIO0);
+	rtl818x_iowrite8(priv, &priv->map->GPIO0, gpio & ~priv->rfkill_mask);
+	gpio = rtl818x_ioread8(priv, &priv->map->GPIO1);
+
+	return gpio & priv->rfkill_mask;
+}
+
+void rtl8187_rfkill_init(struct ieee80211_hw *hw)
+{
+	struct rtl8187_priv *priv = hw->priv;
+
+	priv->rfkill_off = rtl8187_is_radio_enabled(priv);
+	printk(KERN_INFO "rtl8187: wireless switch is %s\n",
+	       priv->rfkill_off ? "on" : "off");
+	wiphy_rfkill_set_hw_state(hw->wiphy, !priv->rfkill_off);
+	wiphy_rfkill_start_polling(hw->wiphy);
+}
+
+void rtl8187_rfkill_poll(struct ieee80211_hw *hw)
+{
+	bool enabled;
+	struct rtl8187_priv *priv = hw->priv;
+
+	mutex_lock(&priv->conf_mutex);
+	enabled = rtl8187_is_radio_enabled(priv);
+	if (unlikely(enabled != priv->rfkill_off)) {
+		priv->rfkill_off = enabled;
+		printk(KERN_INFO "rtl8187: wireless radio switch turned %s\n",
+		       enabled ? "on" : "off");
+		wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
+	}
+	mutex_unlock(&priv->conf_mutex);
+}
+
+void rtl8187_rfkill_exit(struct ieee80211_hw *hw)
+{
+	wiphy_rfkill_stop_polling(hw->wiphy);
+}