drivers/net/wireless/realtek/rtlwifi/rtl8188ee/led.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2013  Realtek Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * The full GNU General Public License is included in this distribution in the
  15  * file called LICENSE.
  16  *
  17  * Contact Information:
  18  * wlanfae <wlanfae@realtek.com>
  19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  20  * Hsinchu 300, Taiwan.
  21  *
  22  * Larry Finger <Larry.Finger@lwfinger.net>
  23  *
  24  *****************************************************************************/
  25
  26 #include "../wifi.h"
  27 #include "../pci.h"
  28 #include "reg.h"
  29 #include "led.h"
  30
  31 static void _rtl88ee_init_led(struct ieee80211_hw *hw,
  32                               struct rtl_led *pled, enum rtl_led_pin ledpin)
  33 {
  34         pled->hw = hw;
  35         pled->ledpin = ledpin;
  36         pled->ledon = false;
  37 }
  38
  39 void rtl88ee_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
  40 {
  41         u8 ledcfg;
  42         struct rtl_priv *rtlpriv = rtl_priv(hw);
  43
  44         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  45                  "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  46
  47         switch (pled->ledpin) {
  48         case LED_PIN_GPIO0:
  49                 break;
  50         case LED_PIN_LED0:
  51                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  52                 rtl_write_byte(rtlpriv,
  53                                REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
  54                 break;
  55         case LED_PIN_LED1:
  56                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  57                 rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
  58                 break;
  59         default:
  60                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
  61                          "switch case %#x not processed\n", pled->ledpin);
  62                 break;
  63         }
  64         pled->ledon = true;
  65 }
  66
  67 void rtl88ee_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  68 {
  69         struct rtl_priv *rtlpriv = rtl_priv(hw);
  70         u8 ledcfg;
  71
  72         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  73                  "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  74
  75         switch (pled->ledpin) {
  76         case LED_PIN_GPIO0:
  77                 break;
  78         case LED_PIN_LED0:
  79                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  80                 ledcfg &= 0xf0;
  81                 if (rtlpriv->ledctl.led_opendrain) {
  82                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  83                                        (ledcfg | BIT(3) | BIT(5) | BIT(6)));
  84                         ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  85                         rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG,
  86                                        (ledcfg & 0xFE));
  87                 } else
  88                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  89                                        (ledcfg | BIT(3) | BIT(5) | BIT(6)));
  90                 break;
  91         case LED_PIN_LED1:
  92                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  93                 ledcfg &= 0x10;
  94                 rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
  95                 break;
  96         default:
  97                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
  98                          "switch case %#x not processed\n", pled->ledpin);
  99                 break;
 100         }
 101         pled->ledon = false;
 102 }
 103
 104 void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
 105 {
 106         struct rtl_priv *rtlpriv = rtl_priv(hw);
 107
 108         _rtl88ee_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
 109         _rtl88ee_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
 110 }
 111
 112 static void _rtl88ee_sw_led_control(struct ieee80211_hw *hw,
 113                                     enum led_ctl_mode ledaction)
 114 {
 115         struct rtl_priv *rtlpriv = rtl_priv(hw);
 116         struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
 117
 118         switch (ledaction) {
 119         case LED_CTL_POWER_ON:
 120         case LED_CTL_LINK:
 121         case LED_CTL_NO_LINK:
 122                 rtl88ee_sw_led_on(hw, pled0);
 123                 break;
 124         case LED_CTL_POWER_OFF:
 125                 rtl88ee_sw_led_off(hw, pled0);
 126                 break;
 127         default:
 128                 break;
 129         }
 130 }
 131
 132 void rtl88ee_led_control(struct ieee80211_hw *hw,
 133                         enum led_ctl_mode ledaction)
 134 {
 135         struct rtl_priv *rtlpriv = rtl_priv(hw);
 136         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 137
 138         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 139             (ledaction == LED_CTL_TX ||
 140              ledaction == LED_CTL_RX ||
 141              ledaction == LED_CTL_SITE_SURVEY ||
 142              ledaction == LED_CTL_LINK ||
 143              ledaction == LED_CTL_NO_LINK ||
 144              ledaction == LED_CTL_START_TO_LINK ||
 145              ledaction == LED_CTL_POWER_ON)) {
 146                 return;
 147         }
 148         RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
 149                                 ledaction);
 150         _rtl88ee_sw_led_control(hw, ledaction);
 151 }