rtlwifi/rtl8192ce/led.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 /* Copyright(c) 2009-2012  Realtek Corporation.*/
0003
0004 #include "../wifi.h"
0005 #include "../pci.h"
0006 #include "reg.h"
0007 #include "led.h"
0008
0009 static void _rtl92ce_init_led(struct ieee80211_hw *hw,
0010                   struct rtl_led *pled, enum rtl_led_pin ledpin)
0011 {
0012     pled->hw = hw;
0013     pled->ledpin = ledpin;
0014     pled->ledon = false;
0015 }
0016
0017 void rtl92ce_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
0018 {
0019     u8 ledcfg;
0020     struct rtl_priv *rtlpriv = rtl_priv(hw);
0021
0022     rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
0023         REG_LEDCFG2, pled->ledpin);
0024
0025     ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
0026
0027     switch (pled->ledpin) {
0028     case LED_PIN_GPIO0:
0029         break;
0030     case LED_PIN_LED0:
0031         rtl_write_byte(rtlpriv,
0032                    REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
0033         break;
0034     case LED_PIN_LED1:
0035         rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0x0f) | BIT(5));
0036         break;
0037     default:
0038         pr_err("switch case %#x not processed\n",
0039                pled->ledpin);
0040         break;
0041     }
0042     pled->ledon = true;
0043 }
0044
0045 void rtl92ce_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
0046 {
0047     struct rtl_priv *rtlpriv = rtl_priv(hw);
0048     u8 ledcfg;
0049
0050     rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
0051         REG_LEDCFG2, pled->ledpin);
0052
0053     ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
0054
0055     switch (pled->ledpin) {
0056     case LED_PIN_GPIO0:
0057         break;
0058     case LED_PIN_LED0:
0059         ledcfg &= 0xf0;
0060         if (rtlpriv->ledctl.led_opendrain)
0061             rtl_write_byte(rtlpriv, REG_LEDCFG2,
0062                        (ledcfg | BIT(1) | BIT(5) | BIT(6)));
0063         else
0064             rtl_write_byte(rtlpriv, REG_LEDCFG2,
0065                        (ledcfg | BIT(3) | BIT(5) | BIT(6)));
0066         break;
0067     case LED_PIN_LED1:
0068         ledcfg &= 0x0f;
0069         rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3)));
0070         break;
0071     default:
0072         pr_info("switch case %#x not processed\n", pled->ledpin);
0073         break;
0074     }
0075     pled->ledon = false;
0076 }
0077
0078 void rtl92ce_init_sw_leds(struct ieee80211_hw *hw)
0079 {
0080     struct rtl_priv *rtlpriv = rtl_priv(hw);
0081
0082     _rtl92ce_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
0083     _rtl92ce_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
0084 }
0085
0086 static void _rtl92ce_sw_led_control(struct ieee80211_hw *hw,
0087                     enum led_ctl_mode ledaction)
0088 {
0089     struct rtl_priv *rtlpriv = rtl_priv(hw);
0090     struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
0091
0092     switch (ledaction) {
0093     case LED_CTL_POWER_ON:
0094     case LED_CTL_LINK:
0095     case LED_CTL_NO_LINK:
0096         rtl92ce_sw_led_on(hw, pled0);
0097         break;
0098     case LED_CTL_POWER_OFF:
0099         rtl92ce_sw_led_off(hw, pled0);
0100         break;
0101     default:
0102         break;
0103     }
0104 }
0105
0106 void rtl92ce_led_control(struct ieee80211_hw *hw,
0107             enum led_ctl_mode ledaction)
0108 {
0109     struct rtl_priv *rtlpriv = rtl_priv(hw);
0110     struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
0111
0112     if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
0113         (ledaction == LED_CTL_TX ||
0114          ledaction == LED_CTL_RX ||
0115          ledaction == LED_CTL_SITE_SURVEY ||
0116          ledaction == LED_CTL_LINK ||
0117          ledaction == LED_CTL_NO_LINK ||
0118          ledaction == LED_CTL_START_TO_LINK ||
0119          ledaction == LED_CTL_POWER_ON)) {
0120         return;
0121     }
0122     rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n",
0123         ledaction);
0124     _rtl92ce_sw_led_control(hw, ledaction);
0125 }