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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2009-2013  Realtek Corporation.*/
   3
   4 #include "../wifi.h"
   5 #include "../pci.h"
   6 #include "reg.h"
   7 #include "led.h"
   8
   9 static void _rtl88ee_init_led(struct ieee80211_hw *hw,
  10                               struct rtl_led *pled, enum rtl_led_pin ledpin)
  11 {
  12         pled->hw = hw;
  13         pled->ledpin = ledpin;
  14         pled->ledon = false;
  15 }
  16
  17 void rtl88ee_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
  18 {
  19         u8 ledcfg;
  20         struct rtl_priv *rtlpriv = rtl_priv(hw);
  21
  22         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  23                  "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  24
  25         switch (pled->ledpin) {
  26         case LED_PIN_GPIO0:
  27                 break;
  28         case LED_PIN_LED0:
  29                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  30                 rtl_write_byte(rtlpriv,
  31                                REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
  32                 break;
  33         case LED_PIN_LED1:
  34                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  35                 rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
  36                 break;
  37         default:
  38                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
  39                          "switch case %#x not processed\n", pled->ledpin);
  40                 break;
  41         }
  42         pled->ledon = true;
  43 }
  44
  45 void rtl88ee_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  46 {
  47         struct rtl_priv *rtlpriv = rtl_priv(hw);
  48         u8 ledcfg;
  49
  50         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  51                  "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  52
  53         switch (pled->ledpin) {
  54         case LED_PIN_GPIO0:
  55                 break;
  56         case LED_PIN_LED0:
  57                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  58                 ledcfg &= 0xf0;
  59                 if (rtlpriv->ledctl.led_opendrain) {
  60                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  61                                        (ledcfg | BIT(3) | BIT(5) | BIT(6)));
  62                         ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  63                         rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG,
  64                                        (ledcfg & 0xFE));
  65                 } else
  66                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  67                                        (ledcfg | BIT(3) | BIT(5) | BIT(6)));
  68                 break;
  69         case LED_PIN_LED1:
  70                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  71                 ledcfg &= 0x10;
  72                 rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
  73                 break;
  74         default:
  75                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
  76                          "switch case %#x not processed\n", pled->ledpin);
  77                 break;
  78         }
  79         pled->ledon = false;
  80 }
  81
  82 void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
  83 {
  84         struct rtl_priv *rtlpriv = rtl_priv(hw);
  85
  86         _rtl88ee_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
  87         _rtl88ee_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
  88 }
  89
  90 static void _rtl88ee_sw_led_control(struct ieee80211_hw *hw,
  91                                     enum led_ctl_mode ledaction)
  92 {
  93         struct rtl_priv *rtlpriv = rtl_priv(hw);
  94         struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
  95
  96         switch (ledaction) {
  97         case LED_CTL_POWER_ON:
  98         case LED_CTL_LINK:
  99         case LED_CTL_NO_LINK:
 100                 rtl88ee_sw_led_on(hw, pled0);
 101                 break;
 102         case LED_CTL_POWER_OFF:
 103                 rtl88ee_sw_led_off(hw, pled0);
 104                 break;
 105         default:
 106                 break;
 107         }
 108 }
 109
 110 void rtl88ee_led_control(struct ieee80211_hw *hw,
 111                         enum led_ctl_mode ledaction)
 112 {
 113         struct rtl_priv *rtlpriv = rtl_priv(hw);
 114         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 115
 116         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 117             (ledaction == LED_CTL_TX ||
 118              ledaction == LED_CTL_RX ||
 119              ledaction == LED_CTL_SITE_SURVEY ||
 120              ledaction == LED_CTL_LINK ||
 121              ledaction == LED_CTL_NO_LINK ||
 122              ledaction == LED_CTL_START_TO_LINK ||
 123              ledaction == LED_CTL_POWER_ON)) {
 124                 return;
 125         }
 126         RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
 127                                 ledaction);
 128         _rtl88ee_sw_led_control(hw, ledaction);
 129 }