drivers/net/wireless/realtek/rtlwifi/rtl8192se/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 _rtl92se_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 rtl92se_init_sw_leds(struct ieee80211_hw *hw)
  18 {
  19         struct rtl_priv *rtlpriv = rtl_priv(hw);
  20
  21         _rtl92se_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
  22         _rtl92se_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
  23 }
  24
  25 void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
  26 {
  27         u8 ledcfg;
  28         struct rtl_priv *rtlpriv = rtl_priv(hw);
  29
  30         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
  31                  LEDCFG, pled->ledpin);
  32
  33         ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
  34
  35         switch (pled->ledpin) {
  36         case LED_PIN_GPIO0:
  37                 break;
  38         case LED_PIN_LED0:
  39                 rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
  40                 break;
  41         case LED_PIN_LED1:
  42                 rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
  43                 break;
  44         default:
  45                 pr_err("switch case %#x not processed\n",
  46                        pled->ledpin);
  47                 break;
  48         }
  49         pled->ledon = true;
  50 }
  51
  52 void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  53 {
  54         struct rtl_priv *rtlpriv;
  55         u8 ledcfg;
  56
  57         rtlpriv = rtl_priv(hw);
  58         if (!rtlpriv || rtlpriv->max_fw_size)
  59                 return;
  60         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
  61                  LEDCFG, pled->ledpin);
  62
  63         ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
  64
  65         switch (pled->ledpin) {
  66         case LED_PIN_GPIO0:
  67                 break;
  68         case LED_PIN_LED0:
  69                 ledcfg &= 0xf0;
  70                 if (rtlpriv->ledctl.led_opendrain)
  71                         rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
  72                 else
  73                         rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
  74                 break;
  75         case LED_PIN_LED1:
  76                 ledcfg &= 0x0f;
  77                 rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
  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 static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
  88                                     enum led_ctl_mode ledaction)
  89 {
  90         struct rtl_priv *rtlpriv = rtl_priv(hw);
  91         struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
  92
  93         switch (ledaction) {
  94         case LED_CTL_POWER_ON:
  95         case LED_CTL_LINK:
  96         case LED_CTL_NO_LINK:
  97                 rtl92se_sw_led_on(hw, pled0);
  98                 break;
  99         case LED_CTL_POWER_OFF:
 100                 rtl92se_sw_led_off(hw, pled0);
 101                 break;
 102         default:
 103                 break;
 104         }
 105 }
 106
 107 void rtl92se_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
 108 {
 109         struct rtl_priv *rtlpriv = rtl_priv(hw);
 110         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 111
 112         if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 113             (ledaction == LED_CTL_TX ||
 114             ledaction == LED_CTL_RX ||
 115             ledaction == LED_CTL_SITE_SURVEY ||
 116             ledaction == LED_CTL_LINK ||
 117             ledaction == LED_CTL_NO_LINK ||
 118             ledaction == LED_CTL_START_TO_LINK ||
 119             ledaction == LED_CTL_POWER_ON)) {
 120                 return;
 121         }
 122         RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
 123
 124         _rtl92se_sw_led_control(hw, ledaction);
 125 }
 126