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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2009-2012  Realtek Corporation.*/
   3
   4 #include "../wifi.h"
   5 #include "../pci.h"
   6 #include "reg.h"
   7 #include "led.h"
   8
   9 static void _rtl8723e_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 rtl8723e_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         rtl_dbg(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,
  32                                REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
  33                 break;
  34         case LED_PIN_LED1:
  35                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  36                 rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
  37                 break;
  38         default:
  39                 pr_err("switch case %#x not processed\n",
  40                        pled->ledpin);
  41                 break;
  42         }
  43         pled->ledon = true;
  44 }
  45
  46 void rtl8723e_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  47 {
  48         struct rtl_priv *rtlpriv = rtl_priv(hw);
  49         u8 ledcfg;
  50
  51         rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
  52                 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  53
  54         ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  55
  56         switch (pled->ledpin) {
  57         case LED_PIN_GPIO0:
  58                 break;
  59         case LED_PIN_LED0:
  60                 ledcfg &= 0xf0;
  61                 if (rtlpriv->ledctl.led_opendrain) {
  62                         ledcfg &= 0x90; /* Set to software control. */
  63                         rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
  64                         ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  65                         ledcfg &= 0xFE;
  66                         rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
  67                 } else {
  68                         ledcfg &= ~BIT(6);
  69                         rtl_write_byte(rtlpriv, REG_LEDCFG2,
  70                                         (ledcfg | BIT(3) | BIT(5)));
  71                 }
  72                 break;
  73         case LED_PIN_LED1:
  74                 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  75                 ledcfg &= 0x10; /* Set to software control. */
  76                 rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
  77
  78                 break;
  79         default:
  80                 pr_err("switch case %#x not processed\n",
  81                        pled->ledpin);
  82                 break;
  83         }
  84         pled->ledon = false;
  85 }
  86
  87 void rtl8723e_init_sw_leds(struct ieee80211_hw *hw)
  88 {
  89         struct rtl_priv *rtlpriv = rtl_priv(hw);
  90
  91         _rtl8723e_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
  92         _rtl8723e_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
  93 }
  94
  95 static void _rtl8723e_sw_led_control(struct ieee80211_hw *hw,
  96                                      enum led_ctl_mode ledaction)
  97 {
  98         struct rtl_priv *rtlpriv = rtl_priv(hw);
  99         struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
 100
 101         switch (ledaction) {
 102         case LED_CTL_POWER_ON:
 103         case LED_CTL_LINK:
 104         case LED_CTL_NO_LINK:
 105                 rtl8723e_sw_led_on(hw, pled0);
 106                 break;
 107         case LED_CTL_POWER_OFF:
 108                 rtl8723e_sw_led_off(hw, pled0);
 109                 break;
 110         default:
 111                 break;
 112         }
 113 }
 114
 115 void rtl8723e_led_control(struct ieee80211_hw *hw,
 116                           enum led_ctl_mode ledaction)
 117 {
 118         struct rtl_priv *rtlpriv = rtl_priv(hw);
 119         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 120
 121         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 122             (ledaction == LED_CTL_TX ||
 123              ledaction == LED_CTL_RX ||
 124              ledaction == LED_CTL_SITE_SURVEY ||
 125              ledaction == LED_CTL_LINK ||
 126              ledaction == LED_CTL_NO_LINK ||
 127              ledaction == LED_CTL_START_TO_LINK ||
 128              ledaction == LED_CTL_POWER_ON)) {
 129                 return;
 130         }
 131         rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
 132                 ledaction);
 133         _rtl8723e_sw_led_control(hw, ledaction);
 134 }