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 rtl92se_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, "LedAddr:%X ledpin=%d\n",
 15		LEDCFG, pin);
 16
 17	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
 18
 19	switch (pin) {
 20	case LED_PIN_GPIO0:
 21		break;
 22	case LED_PIN_LED0:
 23		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
 24		break;
 25	case LED_PIN_LED1:
 26		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
 27		break;
 28	default:
 29		pr_err("switch case %#x not processed\n", pin);
 30		break;
 31	}
 32}
 33
 34void rtl92se_sw_led_off(struct ieee80211_hw *hw, enum rtl_led_pin pin)
 35{
 36	struct rtl_priv *rtlpriv;
 37	u8 ledcfg;
 38
 39	rtlpriv = rtl_priv(hw);
 40	if (!rtlpriv || rtlpriv->max_fw_size)
 41		return;
 42	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
 43		LEDCFG, pin);
 44
 45	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
 46
 47	switch (pin) {
 48	case LED_PIN_GPIO0:
 49		break;
 50	case LED_PIN_LED0:
 51		ledcfg &= 0xf0;
 52		if (rtlpriv->ledctl.led_opendrain)
 53			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
 54		else
 55			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
 56		break;
 57	case LED_PIN_LED1:
 58		ledcfg &= 0x0f;
 59		rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
 60		break;
 61	default:
 62		pr_err("switch case %#x not processed\n", pin);
 63		break;
 64	}
 65}
 66
 67static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
 68				    enum led_ctl_mode ledaction)
 69{
 70	struct rtl_priv *rtlpriv = rtl_priv(hw);
 71	enum rtl_led_pin pin0 = rtlpriv->ledctl.sw_led0;
 72
 73	switch (ledaction) {
 74	case LED_CTL_POWER_ON:
 75	case LED_CTL_LINK:
 76	case LED_CTL_NO_LINK:
 77		rtl92se_sw_led_on(hw, pin0);
 78		break;
 79	case LED_CTL_POWER_OFF:
 80		rtl92se_sw_led_off(hw, pin0);
 81		break;
 82	default:
 83		break;
 84	}
 85}
 86
 87void rtl92se_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
 88{
 89	struct rtl_priv *rtlpriv = rtl_priv(hw);
 90	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 91
 92	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 93	    (ledaction == LED_CTL_TX ||
 94	    ledaction == LED_CTL_RX ||
 95	    ledaction == LED_CTL_SITE_SURVEY ||
 96	    ledaction == LED_CTL_LINK ||
 97	    ledaction == LED_CTL_NO_LINK ||
 98	    ledaction == LED_CTL_START_TO_LINK ||
 99	    ledaction == LED_CTL_POWER_ON)) {
100		return;
101	}
102	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
103
104	_rtl92se_sw_led_control(hw, ledaction);
105}
106