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  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * wlanfae <wlanfae@realtek.com>
  23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24  * Hsinchu 300, Taiwan.
  25  *
  26  * Larry Finger <Larry.Finger@lwfinger.net>
  27  *
  28  *****************************************************************************/
  29
  30 #include "../wifi.h"
  31 #include "../pci.h"
  32 #include "reg.h"
  33 #include "led.h"
  34
  35 static void _rtl88ee_init_led(struct ieee80211_hw *hw,
  36                               struct rtl_led *pled, enum rtl_led_pin ledpin)
  37 {
  38         pled->hw = hw;
  39         pled->ledpin = ledpin;
  40         pled->ledon = false;
  41 }
  42
  43 void rtl88ee_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
  44 {
  45         u8 ledcfg;
  46         struct rtl_priv *rtlpriv = rtl_priv(hw);
  47
  48         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  49                  "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  50
  51         switch (pled->ledpin) {
  52         case LED_PIN_GPIO0:
  53                 break;
  54         case LED_PIN_LED0:
  55                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  56                 rtl_write_byte(rtlpriv,
  57                                REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
  58                 break;
  59         case LED_PIN_LED1:
  60                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  61                 rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
  62                 break;
  63         default:
  64                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
  65                          "switch case not process\n");
  66                 break;
  67         }
  68         pled->ledon = true;
  69 }
  70
  71 void rtl88ee_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  72 {
  73         struct rtl_priv *rtlpriv = rtl_priv(hw);
  74         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
  75         u8 ledcfg;
  76
  77         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  78                  "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  79
  80         switch (pled->ledpin) {
  81         case LED_PIN_GPIO0:
  82                 break;
  83         case LED_PIN_LED0:
  84                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  85                 ledcfg &= 0xf0;
  86                 if (pcipriv->ledctl.led_opendrain) {
  87                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  88                                        (ledcfg | BIT(3) | BIT(5) | BIT(6)));
  89                         ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  90                         rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG,
  91                                        (ledcfg & 0xFE));
  92                 } else
  93                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  94                                        (ledcfg | BIT(3) | BIT(5) | BIT(6)));
  95                 break;
  96         case LED_PIN_LED1:
  97                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  98                 ledcfg &= 0x10;
  99                 rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
 100                 break;
 101         default:
 102                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
 103                          "switch case not process\n");
 104                 break;
 105         }
 106         pled->ledon = false;
 107 }
 108
 109 void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
 110 {
 111         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 112         _rtl88ee_init_led(hw, &pcipriv->ledctl.sw_led0, LED_PIN_LED0);
 113         _rtl88ee_init_led(hw, &pcipriv->ledctl.sw_led1, LED_PIN_LED1);
 114 }
 115
 116 static void _rtl88ee_sw_led_control(struct ieee80211_hw *hw,
 117                                     enum led_ctl_mode ledaction)
 118 {
 119         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 120         struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
 121         switch (ledaction) {
 122         case LED_CTL_POWER_ON:
 123         case LED_CTL_LINK:
 124         case LED_CTL_NO_LINK:
 125                 rtl88ee_sw_led_on(hw, pLed0);
 126                 break;
 127         case LED_CTL_POWER_OFF:
 128                 rtl88ee_sw_led_off(hw, pLed0);
 129                 break;
 130         default:
 131                 break;
 132         }
 133 }
 134
 135 void rtl88ee_led_control(struct ieee80211_hw *hw,
 136                         enum led_ctl_mode ledaction)
 137 {
 138         struct rtl_priv *rtlpriv = rtl_priv(hw);
 139         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 140
 141         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 142             (ledaction == LED_CTL_TX ||
 143              ledaction == LED_CTL_RX ||
 144              ledaction == LED_CTL_SITE_SURVEY ||
 145              ledaction == LED_CTL_LINK ||
 146              ledaction == LED_CTL_NO_LINK ||
 147              ledaction == LED_CTL_START_TO_LINK ||
 148              ledaction == LED_CTL_POWER_ON)) {
 149                 return;
 150         }
 151         RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
 152                                 ledaction);
 153         _rtl88ee_sw_led_control(hw, ledaction);
 154 }