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
  9void rtl8723e_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,
 24			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
 25		break;
 26	case LED_PIN_LED1:
 27		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 28		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
 29		break;
 30	default:
 31		pr_err("switch case %#x not processed\n", pin);
 32		break;
 33	}
 34}
 35
 36void rtl8723e_sw_led_off(struct ieee80211_hw *hw, enum rtl_led_pin pin)
 37{
 38	struct rtl_priv *rtlpriv = rtl_priv(hw);
 39	u8 ledcfg;
 40
 41	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
 42		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pin);
 43
 44	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 45
 46	switch (pin) {
 47	case LED_PIN_GPIO0:
 48		break;
 49	case LED_PIN_LED0:
 50		ledcfg &= 0xf0;
 51		if (rtlpriv->ledctl.led_opendrain) {
 52			ledcfg &= 0x90; /* Set to software control. */
 53			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
 54			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
 55			ledcfg &= 0xFE;
 56			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
 57		} else {
 58			ledcfg &= ~BIT(6);
 59			rtl_write_byte(rtlpriv, REG_LEDCFG2,
 60					(ledcfg | BIT(3) | BIT(5)));
 61		}
 62		break;
 63	case LED_PIN_LED1:
 64		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 65		ledcfg &= 0x10; /* Set to software control. */
 66		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
 67
 68		break;
 69	default:
 70		pr_err("switch case %#x not processed\n", pin);
 71		break;
 72	}
 73}
 74
 75static void _rtl8723e_sw_led_control(struct ieee80211_hw *hw,
 76				     enum led_ctl_mode ledaction)
 77{
 78	struct rtl_priv *rtlpriv = rtl_priv(hw);
 79	enum rtl_led_pin pin0 = rtlpriv->ledctl.sw_led0;
 80
 81	switch (ledaction) {
 82	case LED_CTL_POWER_ON:
 83	case LED_CTL_LINK:
 84	case LED_CTL_NO_LINK:
 85		rtl8723e_sw_led_on(hw, pin0);
 86		break;
 87	case LED_CTL_POWER_OFF:
 88		rtl8723e_sw_led_off(hw, pin0);
 89		break;
 90	default:
 91		break;
 92	}
 93}
 94
 95void rtl8723e_led_control(struct ieee80211_hw *hw,
 96			  enum led_ctl_mode ledaction)
 97{
 98	struct rtl_priv *rtlpriv = rtl_priv(hw);
 99	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
100
101	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
102	    (ledaction == LED_CTL_TX ||
103	     ledaction == LED_CTL_RX ||
104	     ledaction == LED_CTL_SITE_SURVEY ||
105	     ledaction == LED_CTL_LINK ||
106	     ledaction == LED_CTL_NO_LINK ||
107	     ledaction == LED_CTL_START_TO_LINK ||
108	     ledaction == LED_CTL_POWER_ON)) {
109		return;
110	}
111	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
112		ledaction);
113	_rtl8723e_sw_led_control(hw, ledaction);
114}