rtlwifi/rtl8723be/led.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 /* Copyright(c) 2009-2014  Realtek Corporation.*/
0003
0004 #include "../wifi.h"
0005 #include "../pci.h"
0006 #include "reg.h"
0007 #include "led.h"
0008
0009 static void _rtl8723be_init_led(struct ieee80211_hw *hw,  struct rtl_led *pled,
0010                 enum rtl_led_pin ledpin)
0011 {
0012     pled->hw = hw;
0013     pled->ledpin = ledpin;
0014     pled->ledon = false;
0015 }
0016
0017 void rtl8723be_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,
0023         "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
0024
0025     switch (pled->ledpin) {
0026     case LED_PIN_GPIO0:
0027         break;
0028     case LED_PIN_LED0:
0029         ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
0030         ledcfg &= ~BIT(6);
0031         rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
0032         break;
0033     case LED_PIN_LED1:
0034         ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
0035         rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
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 rtl8723be_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,
0051         "LedAddr:%X ledpin=%d\n", 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             ledcfg &= 0x90; /* Set to software control. */
0062             rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
0063             ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
0064             ledcfg &= 0xFE;
0065             rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
0066         } else {
0067             ledcfg &= ~BIT(6);
0068             rtl_write_byte(rtlpriv, REG_LEDCFG2,
0069                        (ledcfg | BIT(3) | BIT(5)));
0070         }
0071         break;
0072     case LED_PIN_LED1:
0073         ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
0074         ledcfg &= 0x10; /* Set to software control. */
0075         rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
0076
0077         break;
0078     default:
0079         pr_err("switch case %#x not processed\n",
0080                pled->ledpin);
0081         break;
0082     }
0083     pled->ledon = false;
0084 }
0085
0086 void rtl8723be_init_sw_leds(struct ieee80211_hw *hw)
0087 {
0088     struct rtl_priv *rtlpriv = rtl_priv(hw);
0089
0090     _rtl8723be_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
0091     _rtl8723be_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
0092 }
0093
0094 static void _rtl8723be_sw_led_control(struct ieee80211_hw *hw,
0095                       enum led_ctl_mode ledaction)
0096 {
0097     struct rtl_priv *rtlpriv = rtl_priv(hw);
0098     struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
0099
0100     switch (ledaction) {
0101     case LED_CTL_POWER_ON:
0102     case LED_CTL_LINK:
0103     case LED_CTL_NO_LINK:
0104         rtl8723be_sw_led_on(hw, pled0);
0105         break;
0106     case LED_CTL_POWER_OFF:
0107         rtl8723be_sw_led_off(hw, pled0);
0108         break;
0109     default:
0110         break;
0111     }
0112 }
0113
0114 void rtl8723be_led_control(struct ieee80211_hw *hw,
0115                enum led_ctl_mode ledaction)
0116 {
0117     struct rtl_priv *rtlpriv = rtl_priv(hw);
0118     struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
0119
0120     if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
0121         (ledaction == LED_CTL_TX ||
0122          ledaction == LED_CTL_RX ||
0123          ledaction == LED_CTL_SITE_SURVEY ||
0124          ledaction == LED_CTL_LINK ||
0125          ledaction == LED_CTL_NO_LINK ||
0126          ledaction == LED_CTL_START_TO_LINK ||
0127          ledaction == LED_CTL_POWER_ON)) {
0128         return;
0129     }
0130     rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n", ledaction);
0131     _rtl8723be_sw_led_control(hw, ledaction);
0132 }