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// SPDX-License-Identifier: GPL-2.0-only
/*
* 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!
*/
#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);
}
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