drivers/net/wireless/realtek/rtlwifi/rtl8723be/led.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2009-2014  Realtek Corporation.*/
   3
   4 #include "../wifi.h"
   5 #include "../pci.h"
   6 #include "reg.h"
   7 #include "led.h"
   8
   9 static void _rtl8723be_init_led(struct ieee80211_hw *hw,  struct rtl_led *pled,
  10                                 enum rtl_led_pin ledpin)
  11 {
  12         pled->hw = hw;
  13         pled->ledpin = ledpin;
  14         pled->ledon = false;
  15 }
  16
  17 void rtl8723be_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                 ledcfg &= ~BIT(6);
  31                 rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
  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                 pr_err("switch case %#x not processed\n",
  39                        pled->ledpin);
  40                 break;
  41         }
  42         pled->ledon = true;
  43 }
  44
  45 void rtl8723be_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         ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  54
  55         switch (pled->ledpin) {
  56         case LED_PIN_GPIO0:
  57                 break;
  58         case LED_PIN_LED0:
  59                 ledcfg &= 0xf0;
  60                 if (rtlpriv->ledctl.led_opendrain) {
  61                         ledcfg &= 0x90; /* Set to software control. */
  62                         rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
  63                         ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  64                         ledcfg &= 0xFE;
  65                         rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
  66                 } else {
  67                         ledcfg &= ~BIT(6);
  68                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  69                                        (ledcfg | BIT(3) | BIT(5)));
  70                 }
  71                 break;
  72         case LED_PIN_LED1:
  73                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  74                 ledcfg &= 0x10; /* Set to software control. */
  75                 rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
  76
  77                 break;
  78         default:
  79                 pr_err("switch case %#x not processed\n",
  80                        pled->ledpin);
  81                 break;
  82         }
  83         pled->ledon = false;
  84 }
  85
  86 void rtl8723be_init_sw_leds(struct ieee80211_hw *hw)
  87 {
  88         struct rtl_priv *rtlpriv = rtl_priv(hw);
  89
  90         _rtl8723be_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
  91         _rtl8723be_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
  92 }
  93
  94 static void _rtl8723be_sw_led_control(struct ieee80211_hw *hw,
  95                                       enum led_ctl_mode ledaction)
  96 {
  97         struct rtl_priv *rtlpriv = rtl_priv(hw);
  98         struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
  99
 100         switch (ledaction) {
 101         case LED_CTL_POWER_ON:
 102         case LED_CTL_LINK:
 103         case LED_CTL_NO_LINK:
 104                 rtl8723be_sw_led_on(hw, pled0);
 105                 break;
 106         case LED_CTL_POWER_OFF:
 107                 rtl8723be_sw_led_off(hw, pled0);
 108                 break;
 109         default:
 110                 break;
 111         }
 112 }
 113
 114 void rtl8723be_led_control(struct ieee80211_hw *hw,
 115                            enum led_ctl_mode ledaction)
 116 {
 117         struct rtl_priv *rtlpriv = rtl_priv(hw);
 118         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 119
 120         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 121             (ledaction == LED_CTL_TX ||
 122              ledaction == LED_CTL_RX ||
 123              ledaction == LED_CTL_SITE_SURVEY ||
 124              ledaction == LED_CTL_LINK ||
 125              ledaction == LED_CTL_NO_LINK ||
 126              ledaction == LED_CTL_START_TO_LINK ||
 127              ledaction == LED_CTL_POWER_ON)) {
 128                 return;
 129         }
 130         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n", ledaction);
 131         _rtl8723be_sw_led_control(hw, ledaction);
 132 }