Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / wireless / rtl818x / rtl8187 / rfkill.c

diff --git a/kernel/drivers/net/wireless/rtl818x/rtl8187/rfkill.c b/kernel/drivers/net/wireless/rtl818x/rtl8187/rfkill.c
new file mode 100644 (file)
index 0000000..3411671
--- /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);
+}