drivers/net/wireless/realtek/rtlwifi/rtl8723ae/led.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2012  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 _rtl8723e_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 rtl8723e_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                 ledcfg &= ~BIT(6);
  57                 rtl_write_byte(rtlpriv,
  58                                REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
  59                 break;
  60         case LED_PIN_LED1:
  61                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  62                 rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
  63                 break;
  64         default:
  65                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  66                          "switch case not process\n");
  67                 break;
  68         }
  69         pled->ledon = true;
  70 }
  71
  72 void rtl8723e_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  73 {
  74         struct rtl_priv *rtlpriv = rtl_priv(hw);
  75         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
  76         u8 ledcfg;
  77
  78         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  79                  "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  80
  81         ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  82
  83         switch (pled->ledpin) {
  84         case LED_PIN_GPIO0:
  85                 break;
  86         case LED_PIN_LED0:
  87                 ledcfg &= 0xf0;
  88                 if (pcipriv->ledctl.led_opendrain) {
  89                         ledcfg &= 0x90; /* Set to software control. */
  90                         rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
  91                         ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  92                         ledcfg &= 0xFE;
  93                         rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
  94                 } else {
  95                         ledcfg &= ~BIT(6);
  96                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  97                                         (ledcfg | BIT(3) | BIT(5)));
  98                 }
  99                 break;
 100         case LED_PIN_LED1:
 101                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 102                 ledcfg &= 0x10; /* Set to software control. */
 103                 rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
 104
 105                 break;
 106         default:
 107                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 108                          "switch case not process\n");
 109                 break;
 110         }
 111         pled->ledon = false;
 112 }
 113
 114 void rtl8723e_init_sw_leds(struct ieee80211_hw *hw)
 115 {
 116         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 117         _rtl8723e_init_led(hw, &pcipriv->ledctl.sw_led0, LED_PIN_LED0);
 118         _rtl8723e_init_led(hw, &pcipriv->ledctl.sw_led1, LED_PIN_LED1);
 119 }
 120
 121 static void _rtl8723e_sw_led_control(struct ieee80211_hw *hw,
 122                                      enum led_ctl_mode ledaction)
 123 {
 124         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 125         struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
 126         switch (ledaction) {
 127         case LED_CTL_POWER_ON:
 128         case LED_CTL_LINK:
 129         case LED_CTL_NO_LINK:
 130                 rtl8723e_sw_led_on(hw, pLed0);
 131                 break;
 132         case LED_CTL_POWER_OFF:
 133                 rtl8723e_sw_led_off(hw, pLed0);
 134                 break;
 135         default:
 136                 break;
 137         }
 138 }
 139
 140 void rtl8723e_led_control(struct ieee80211_hw *hw,
 141                           enum led_ctl_mode ledaction)
 142 {
 143         struct rtl_priv *rtlpriv = rtl_priv(hw);
 144         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 145
 146         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 147             (ledaction == LED_CTL_TX ||
 148              ledaction == LED_CTL_RX ||
 149              ledaction == LED_CTL_SITE_SURVEY ||
 150              ledaction == LED_CTL_LINK ||
 151              ledaction == LED_CTL_NO_LINK ||
 152              ledaction == LED_CTL_START_TO_LINK ||
 153              ledaction == LED_CTL_POWER_ON)) {
 154                 return;
 155         }
 156         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
 157                  ledaction);
 158         _rtl8723e_sw_led_control(hw, ledaction);
 159 }