// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Linux RFKILL support for RTL8187
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*
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* Copyright (c) 2009 Herton Ronaldo Krzesinski <herton@mandriva.com.br>
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*
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* Based on the RFKILL handling in the r8187 driver, which is:
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* Copyright (c) Realtek Semiconductor Corp. All rights reserved.
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*
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* Thanks to Realtek for their support!
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*/
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#include <linux/types.h>
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#include <linux/usb.h>
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#include <net/mac80211.h>
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#include "rtl8187.h"
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#include "rfkill.h"
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static bool rtl8187_is_radio_enabled(struct rtl8187_priv *priv)
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{
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u8 gpio;
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gpio = rtl818x_ioread8(priv, &priv->map->GPIO0);
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rtl818x_iowrite8(priv, &priv->map->GPIO0, gpio & ~priv->rfkill_mask);
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gpio = rtl818x_ioread8(priv, &priv->map->GPIO1);
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return gpio & priv->rfkill_mask;
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}
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void rtl8187_rfkill_init(struct ieee80211_hw *hw)
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{
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struct rtl8187_priv *priv = hw->priv;
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priv->rfkill_off = rtl8187_is_radio_enabled(priv);
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printk(KERN_INFO "rtl8187: wireless switch is %s\n",
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priv->rfkill_off ? "on" : "off");
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wiphy_rfkill_set_hw_state(hw->wiphy, !priv->rfkill_off);
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wiphy_rfkill_start_polling(hw->wiphy);
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}
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void rtl8187_rfkill_poll(struct ieee80211_hw *hw)
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{
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bool enabled;
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struct rtl8187_priv *priv = hw->priv;
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mutex_lock(&priv->conf_mutex);
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enabled = rtl8187_is_radio_enabled(priv);
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if (unlikely(enabled != priv->rfkill_off)) {
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priv->rfkill_off = enabled;
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printk(KERN_INFO "rtl8187: wireless radio switch turned %s\n",
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enabled ? "on" : "off");
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wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
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}
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mutex_unlock(&priv->conf_mutex);
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}
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void rtl8187_rfkill_exit(struct ieee80211_hw *hw)
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{
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wiphy_rfkill_stop_polling(hw->wiphy);
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}
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