drivers/net/wireless/rtlwifi/rtl8192se/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 _rtl92se_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 rtl92se_init_sw_leds(struct ieee80211_hw *hw)
  44 {
  45         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
  46         _rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
  47         _rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
  48 }
  49
  50 void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
  51 {
  52         u8 ledcfg;
  53         struct rtl_priv *rtlpriv = rtl_priv(hw);
  54
  55         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
  56                  LEDCFG, pled->ledpin);
  57
  58         ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
  59
  60         switch (pled->ledpin) {
  61         case LED_PIN_GPIO0:
  62                 break;
  63         case LED_PIN_LED0:
  64                 rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
  65                 break;
  66         case LED_PIN_LED1:
  67                 rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
  68                 break;
  69         default:
  70                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  71                          "switch case not processed\n");
  72                 break;
  73         }
  74         pled->ledon = true;
  75 }
  76
  77 void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  78 {
  79         struct rtl_priv *rtlpriv;
  80         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
  81         u8 ledcfg;
  82
  83         rtlpriv = rtl_priv(hw);
  84         if (!rtlpriv || rtlpriv->max_fw_size)
  85                 return;
  86         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
  87                  LEDCFG, pled->ledpin);
  88
  89         ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
  90
  91         switch (pled->ledpin) {
  92         case LED_PIN_GPIO0:
  93                 break;
  94         case LED_PIN_LED0:
  95                 ledcfg &= 0xf0;
  96                 if (pcipriv->ledctl.led_opendrain)
  97                         rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
  98                 else
  99                         rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
 100                 break;
 101         case LED_PIN_LED1:
 102                 ledcfg &= 0x0f;
 103                 rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
 104                 break;
 105         default:
 106                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 107                          "switch case not processed\n");
 108                 break;
 109         }
 110         pled->ledon = false;
 111 }
 112
 113 static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
 114                                     enum led_ctl_mode ledaction)
 115 {
 116         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 117         struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
 118         switch (ledaction) {
 119         case LED_CTL_POWER_ON:
 120         case LED_CTL_LINK:
 121         case LED_CTL_NO_LINK:
 122                 rtl92se_sw_led_on(hw, pLed0);
 123                 break;
 124         case LED_CTL_POWER_OFF:
 125                 rtl92se_sw_led_off(hw, pLed0);
 126                 break;
 127         default:
 128                 break;
 129         }
 130 }
 131
 132 void rtl92se_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
 133 {
 134         struct rtl_priv *rtlpriv = rtl_priv(hw);
 135         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 136
 137         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 138             (ledaction == LED_CTL_TX ||
 139             ledaction == LED_CTL_RX ||
 140             ledaction == LED_CTL_SITE_SURVEY ||
 141             ledaction == LED_CTL_LINK ||
 142             ledaction == LED_CTL_NO_LINK ||
 143             ledaction == LED_CTL_START_TO_LINK ||
 144             ledaction == LED_CTL_POWER_ON)) {
 145                 return;
 146         }
 147         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
 148
 149         _rtl92se_sw_led_control(hw, ledaction);
 150 }
 151