drivers/net/wireless/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, REG_LEDCFG2,
  57                                (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_EMERG,
  65                          "switch case not processed\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         u8 val;
  77
  78         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  79                  "LedAddr:%X ledpin =%d\n", REG_LEDCFG2, pled->ledpin);
  80
  81         switch (pled->ledpin) {
  82         case LED_PIN_GPIO0:
  83                 break;
  84         case LED_PIN_LED0:
  85                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  86                 ledcfg &= 0xf0;
  87                 val = ledcfg | BIT(3) | BIT(5) | BIT(6);
  88                 if (pcipriv->ledctl.led_opendrain == true) {
  89                         rtl_write_byte(rtlpriv, REG_LEDCFG2, val);
  90                         ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  91                         val = ledcfg & 0xFE;
  92                         rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, val);
  93                 } else {
  94                         rtl_write_byte(rtlpriv, REG_LEDCFG2, val);
  95                 }
  96                 break;
  97         case LED_PIN_LED1:
  98                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  99                 ledcfg &= 0x10;
 100                 rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
 101                 break;
 102         default:
 103                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 104                          "switch case not processed\n");
 105                 break;
 106         }
 107         pled->ledon = false;
 108 }
 109
 110 void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
 111 {
 112         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 113
 114         rtl88ee_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
 115         rtl88ee_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
 116 }
 117
 118 static void rtl88ee_sw_led_control(struct ieee80211_hw *hw,
 119                                     enum led_ctl_mode ledaction)
 120 {
 121         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 122         struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
 123
 124         switch (ledaction) {
 125         case LED_CTL_POWER_ON:
 126         case LED_CTL_LINK:
 127         case LED_CTL_NO_LINK:
 128                 rtl88ee_sw_led_on(hw, pLed0);
 129                 break;
 130         case LED_CTL_POWER_OFF:
 131                 rtl88ee_sw_led_off(hw, pLed0);
 132                 break;
 133         default:
 134                 break;
 135         }
 136 }
 137
 138 void rtl88ee_led_control(struct ieee80211_hw *hw,
 139                         enum led_ctl_mode ledaction)
 140 {
 141         struct rtl_priv *rtlpriv = rtl_priv(hw);
 142         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 143
 144         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 145             (ledaction == LED_CTL_TX ||
 146              ledaction == LED_CTL_RX ||
 147              ledaction == LED_CTL_SITE_SURVEY ||
 148              ledaction == LED_CTL_LINK ||
 149              ledaction == LED_CTL_NO_LINK ||
 150              ledaction == LED_CTL_START_TO_LINK ||
 151              ledaction == LED_CTL_POWER_ON)) {
 152                 return;
 153         }
 154         RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
 155                  ledaction);
 156         rtl88ee_sw_led_control(hw, ledaction);
 157 }