2010-02-16 17:56:56

by Larry Finger

[permalink] [raw]
Subject: [PATCH 4/5] rtl8187se: Add rfkill routines

Implement the RFKILL routines needed for RTL8187SE.

Signed-off-by: Larry Finger <[email protected]>
---

rtl8187se_rfkill.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++
rtl8187se_rfkill.h | 22 ++++++++++++++++
2 files changed, 94 insertions(+)

Index: wireless-testing/drivers/net/wireless/rtl818x/rtl8187se_rfkill.h
===================================================================
--- /dev/null
+++ wireless-testing/drivers/net/wireless/rtl818x/rtl8187se_rfkill.h
@@ -0,0 +1,22 @@
+#ifndef RTL8187SE_RFKILL_H
+#define RTL8187SE_RFKILL_H
+/*
+ * Linux RFKILL support for RTL8187SE
+ *
+ * Copyright (c) 2010 Larry Finger <[email protected]>
+ *
+ * Based on the RFKILL handling in the r8187se driver, which is:
+ * Copyright (c) Realtek Semiconductor Corp. All rights reserved.
+ *
+ * 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.
+ */
+
+bool rtl8187se_is_radio_enabled(struct rtl8187se_priv *priv);
+void rtl8187se_rfkill_init(struct ieee80211_hw *hw);
+void rtl8187se_rfkill_poll(struct ieee80211_hw *hw);
+void rtl8187se_rfkill_exit(struct ieee80211_hw *hw);
+
+#endif /* RTL8187SE_RFKILL_H */
+
Index: wireless-testing/drivers/net/wireless/rtl818x/rtl8187se_rfkill.c
===================================================================
--- /dev/null
+++ wireless-testing/drivers/net/wireless/rtl818x/rtl8187se_rfkill.c
@@ -0,0 +1,72 @@
+/*
+ * Linux RFKILL support for RTL8187SE
+ *
+ * Copyright (c) 2010 Larry Finger <[email protected]>
+ *
+ * Based on the RFKILL handling in the r8187se driver, which is:
+ * Copyright (c) Realtek Semiconductor Corp. All rights reserved.
+ *
+ * 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 <net/mac80211.h>
+
+#include "rtl8187se.h"
+#include "rtl8187se_rfkill.h"
+
+bool rtl8187se_is_radio_enabled(struct rtl8187se_priv *priv)
+{
+ u8 config0;
+ u8 pgsel = rtl818x_ioread8(priv, &priv->map->PGSELECT);
+
+ /* vendor driver turns LED off before reading CONFIG0 */
+ rtl818x_iowrite8(priv, &priv->map->PGSELECT, pgsel & 0xF7);
+ udelay(4);
+
+ config0 = rtl818x_ioread8(priv, &priv->map->CONFIG0);
+ /* Turn LED back on if switch on */
+ if (config0)
+ rtl818x_iowrite8(priv, &priv->map->PGSELECT, config0 | 0x08);
+ return config0 & 0x10;
+}
+
+void rtl8187se_rfkill_init(struct ieee80211_hw *hw)
+{
+ struct rtl8187se_priv *priv = hw->priv;
+
+ priv->rfkill_off = rtl8187se_is_radio_enabled(priv);
+ printk(KERN_INFO "rtl8187se: 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 rtl8187se_rfkill_poll(struct ieee80211_hw *hw)
+{
+ bool enabled;
+ struct rtl8187se_priv *priv = hw->priv;
+
+ mutex_lock(&priv->conf_mutex);
+ enabled = rtl8187se_is_radio_enabled(priv);
+ if (unlikely(enabled != priv->rfkill_off)) {
+ priv->rfkill_off = enabled;
+ printk(KERN_INFO "rtl8187se: wireless radio switch turned %s\n",
+ enabled ? "on" : "off");
+ wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
+ }
+ mutex_unlock(&priv->conf_mutex);
+}
+
+void rtl8187se_rfkill_exit(struct ieee80211_hw *hw)
+{
+ struct rtl8187se_priv *priv = hw->priv;
+ u8 pgsel = rtl818x_ioread8(priv, &priv->map->PGSELECT);
+
+ wiphy_rfkill_stop_polling(hw->wiphy);
+ /* Turn LED off before stopping */
+ rtl818x_iowrite8(priv, &priv->map->PGSELECT, pgsel & 0xF7);
+}
+