Herton Ronaldo Krzesinski | ca9152e | 2009-08-26 13:54:09 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Linux RFKILL support for RTL8187 |
| 3 | * |
| 4 | * Copyright (c) 2009 Herton Ronaldo Krzesinski <herton@mandriva.com.br> |
| 5 | * |
| 6 | * Based on the RFKILL handling in the r8187 driver, which is: |
| 7 | * Copyright (c) Realtek Semiconductor Corp. All rights reserved. |
| 8 | * |
| 9 | * Thanks to Realtek for their support! |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License version 2 as |
| 13 | * published by the Free Software Foundation. |
| 14 | */ |
| 15 | |
| 16 | #include <linux/types.h> |
| 17 | #include <linux/usb.h> |
| 18 | #include <net/mac80211.h> |
| 19 | |
| 20 | #include "rtl8187.h" |
Larry Finger | 3da0d66 | 2009-11-09 16:56:06 -0600 | [diff] [blame] | 21 | #include "rtl8187_rfkill.h" |
Herton Ronaldo Krzesinski | ca9152e | 2009-08-26 13:54:09 -0300 | [diff] [blame] | 22 | |
| 23 | static bool rtl8187_is_radio_enabled(struct rtl8187_priv *priv) |
| 24 | { |
| 25 | u8 gpio; |
| 26 | |
| 27 | gpio = rtl818x_ioread8(priv, &priv->map->GPIO0); |
Larry Finger | 70d5713 | 2009-12-05 19:25:22 -0600 | [diff] [blame] | 28 | rtl818x_iowrite8(priv, &priv->map->GPIO0, gpio & ~priv->rfkill_mask); |
Herton Ronaldo Krzesinski | ca9152e | 2009-08-26 13:54:09 -0300 | [diff] [blame] | 29 | gpio = rtl818x_ioread8(priv, &priv->map->GPIO1); |
| 30 | |
Larry Finger | 70d5713 | 2009-12-05 19:25:22 -0600 | [diff] [blame] | 31 | return gpio & priv->rfkill_mask; |
Herton Ronaldo Krzesinski | ca9152e | 2009-08-26 13:54:09 -0300 | [diff] [blame] | 32 | } |
| 33 | |
| 34 | void rtl8187_rfkill_init(struct ieee80211_hw *hw) |
| 35 | { |
| 36 | struct rtl8187_priv *priv = hw->priv; |
| 37 | |
| 38 | priv->rfkill_off = rtl8187_is_radio_enabled(priv); |
| 39 | printk(KERN_INFO "rtl8187: wireless switch is %s\n", |
| 40 | priv->rfkill_off ? "on" : "off"); |
| 41 | wiphy_rfkill_set_hw_state(hw->wiphy, !priv->rfkill_off); |
| 42 | wiphy_rfkill_start_polling(hw->wiphy); |
| 43 | } |
| 44 | |
| 45 | void rtl8187_rfkill_poll(struct ieee80211_hw *hw) |
| 46 | { |
| 47 | bool enabled; |
| 48 | struct rtl8187_priv *priv = hw->priv; |
| 49 | |
| 50 | mutex_lock(&priv->conf_mutex); |
| 51 | enabled = rtl8187_is_radio_enabled(priv); |
| 52 | if (unlikely(enabled != priv->rfkill_off)) { |
| 53 | priv->rfkill_off = enabled; |
| 54 | printk(KERN_INFO "rtl8187: wireless radio switch turned %s\n", |
| 55 | enabled ? "on" : "off"); |
| 56 | wiphy_rfkill_set_hw_state(hw->wiphy, !enabled); |
| 57 | } |
| 58 | mutex_unlock(&priv->conf_mutex); |
| 59 | } |
| 60 | |
| 61 | void rtl8187_rfkill_exit(struct ieee80211_hw *hw) |
| 62 | { |
| 63 | wiphy_rfkill_stop_polling(hw->wiphy); |
| 64 | } |