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
  9void rtl8723be_sw_led_on(struct ieee80211_hw *hw, enum rtl_led_pin pin)
 10{
 11	u8 ledcfg;
 12	struct rtl_priv *rtlpriv = rtl_priv(hw);
 13
 14	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
 15		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pin);
 16
 17	switch (pin) {
 18	case LED_PIN_GPIO0:
 19		break;
 20	case LED_PIN_LED0:
 21		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 22		ledcfg &= ~BIT(6);
 23		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
 24		break;
 25	case LED_PIN_LED1:
 26		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 27		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
 28		break;
 29	default:
 30		pr_err("switch case %#x not processed\n", pin);
 31		break;
 32	}
 33}
 34
 35void rtl8723be_sw_led_off(struct ieee80211_hw *hw, enum rtl_led_pin pin)
 36{
 37	struct rtl_priv *rtlpriv = rtl_priv(hw);
 38	u8 ledcfg;
 39
 40	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
 41		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pin);
 42
 43	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 44
 45	switch (pin) {
 46	case LED_PIN_GPIO0:
 47		break;
 48	case LED_PIN_LED0:
 49		ledcfg &= 0xf0;
 50		if (rtlpriv->ledctl.led_opendrain) {
 51			ledcfg &= 0x90; /* Set to software control. */
 52			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
 53			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
 54			ledcfg &= 0xFE;
 55			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
 56		} else {
 57			ledcfg &= ~BIT(6);
 58			rtl_write_byte(rtlpriv, REG_LEDCFG2,
 59				       (ledcfg | BIT(3) | BIT(5)));
 60		}
 61		break;
 62	case LED_PIN_LED1:
 63		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 64		ledcfg &= 0x10; /* Set to software control. */
 65		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
 66
 67		break;
 68	default:
 69		pr_err("switch case %#x not processed\n", pin);
 70		break;
 71	}
 72}
 73
 74static void _rtl8723be_sw_led_control(struct ieee80211_hw *hw,
 75				      enum led_ctl_mode ledaction)
 76{
 77	struct rtl_priv *rtlpriv = rtl_priv(hw);
 78	enum rtl_led_pin pin0 = rtlpriv->ledctl.sw_led0;
 79
 80	switch (ledaction) {
 81	case LED_CTL_POWER_ON:
 82	case LED_CTL_LINK:
 83	case LED_CTL_NO_LINK:
 84		rtl8723be_sw_led_on(hw, pin0);
 85		break;
 86	case LED_CTL_POWER_OFF:
 87		rtl8723be_sw_led_off(hw, pin0);
 88		break;
 89	default:
 90		break;
 91	}
 92}
 93
 94void rtl8723be_led_control(struct ieee80211_hw *hw,
 95			   enum led_ctl_mode ledaction)
 96{
 97	struct rtl_priv *rtlpriv = rtl_priv(hw);
 98	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 99
100	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
101	    (ledaction == LED_CTL_TX ||
102	     ledaction == LED_CTL_RX ||
103	     ledaction == LED_CTL_SITE_SURVEY ||
104	     ledaction == LED_CTL_LINK ||
105	     ledaction == LED_CTL_NO_LINK ||
106	     ledaction == LED_CTL_START_TO_LINK ||
107	     ledaction == LED_CTL_POWER_ON)) {
108		return;
109	}
110	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n", ledaction);
111	_rtl8723be_sw_led_control(hw, ledaction);
112}