led.c

  1// SPDX-License-Identifier: GPL-2.0
  2/* Copyright(c) 2009-2010  Realtek Corporation.*/
  3
  4#include "../wifi.h"
  5#include "../pci.h"
  6#include "reg.h"
  7#include "led.h"
  8
  9void rtl8821ae_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		rtl_dbg(rtlpriv, COMP_ERR, DBG_LOUD,
 32			"switch case %#x not processed\n", pin);
 33		break;
 34	}
 35}
 36
 37void rtl8812ae_sw_led_on(struct ieee80211_hw *hw, enum rtl_led_pin pin)
 38{
 39	u16	ledreg = REG_LEDCFG1;
 40	u8	ledcfg = 0;
 41	struct rtl_priv *rtlpriv = rtl_priv(hw);
 42
 43	switch (pin) {
 44	case LED_PIN_LED0:
 45		ledreg = REG_LEDCFG1;
 46		break;
 47
 48	case LED_PIN_LED1:
 49		ledreg = REG_LEDCFG2;
 50		break;
 51
 52	case LED_PIN_GPIO0:
 53	default:
 54		break;
 55	}
 56
 57	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
 58		"In SwLedOn, LedAddr:%X LEDPIN=%d\n",
 59		ledreg, pin);
 60
 61	ledcfg =  rtl_read_byte(rtlpriv, ledreg);
 62	ledcfg |= BIT(5); /*Set 0x4c[21]*/
 63	ledcfg &= ~(BIT(7) | BIT(6) | BIT(3) | BIT(2) | BIT(1) | BIT(0));
 64		/*Clear 0x4c[23:22] and 0x4c[19:16]*/
 65	rtl_write_byte(rtlpriv, ledreg, ledcfg); /*SW control led0 on.*/
 66}
 67
 68void rtl8821ae_sw_led_off(struct ieee80211_hw *hw, enum rtl_led_pin pin)
 69{
 70	struct rtl_priv *rtlpriv = rtl_priv(hw);
 71	u8 ledcfg;
 72
 73	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
 74		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pin);
 75
 76	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 77
 78	switch (pin) {
 79	case LED_PIN_GPIO0:
 80		break;
 81	case LED_PIN_LED0:
 82		ledcfg &= 0xf0;
 83		if (rtlpriv->ledctl.led_opendrain) {
 84			ledcfg &= 0x90; /* Set to software control. */
 85			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
 86			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
 87			ledcfg &= 0xFE;
 88			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
 89		} else {
 90			ledcfg &= ~BIT(6);
 91			rtl_write_byte(rtlpriv, REG_LEDCFG2,
 92				       (ledcfg | BIT(3) | BIT(5)));
 93		}
 94		break;
 95	case LED_PIN_LED1:
 96		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 97		ledcfg &= 0x10; /* Set to software control. */
 98		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
 99		break;
100	default:
101		rtl_dbg(rtlpriv, COMP_ERR, DBG_LOUD,
102			"switch case %#x not processed\n", pin);
103		break;
104	}
105}
106
107void rtl8812ae_sw_led_off(struct ieee80211_hw *hw, enum rtl_led_pin pin)
108{
109	u16 ledreg = REG_LEDCFG1;
110	struct rtl_priv *rtlpriv = rtl_priv(hw);
111
112	switch (pin) {
113	case LED_PIN_LED0:
114		ledreg = REG_LEDCFG1;
115		break;
116
117	case LED_PIN_LED1:
118		ledreg = REG_LEDCFG2;
119		break;
120
121	case LED_PIN_GPIO0:
122	default:
123		break;
124	}
125
126	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
127		"In SwLedOff,LedAddr:%X LEDPIN=%d\n",
128		ledreg, pin);
129	/*Open-drain arrangement for controlling the LED*/
130	if (rtlpriv->ledctl.led_opendrain) {
131		u8 ledcfg = rtl_read_byte(rtlpriv, ledreg);
132
133		ledreg &= 0xd0; /* Set to software control.*/
134		rtl_write_byte(rtlpriv, ledreg, (ledcfg | BIT(3)));
135
136		/*Open-drain arrangement*/
137		ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
138		ledcfg &= 0xFE;/*Set GPIO[8] to input mode*/
139		rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
140	} else {
141		rtl_write_byte(rtlpriv, ledreg, 0x28);
142	}
143}
144
145static void _rtl8821ae_sw_led_control(struct ieee80211_hw *hw,
146				      enum led_ctl_mode ledaction)
147{
148	struct rtl_priv *rtlpriv = rtl_priv(hw);
149	enum rtl_led_pin pin0 = rtlpriv->ledctl.sw_led0;
150	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
151
152	switch (ledaction) {
153	case LED_CTL_POWER_ON:
154	case LED_CTL_LINK:
155	case LED_CTL_NO_LINK:
156		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
157			rtl8812ae_sw_led_on(hw, pin0);
158		else
159			rtl8821ae_sw_led_on(hw, pin0);
160		break;
161	case LED_CTL_POWER_OFF:
162		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
163			rtl8812ae_sw_led_off(hw, pin0);
164		else
165			rtl8821ae_sw_led_off(hw, pin0);
166		break;
167	default:
168		break;
169	}
170}
171
172void rtl8821ae_led_control(struct ieee80211_hw *hw,
173			   enum led_ctl_mode ledaction)
174{
175	struct rtl_priv *rtlpriv = rtl_priv(hw);
176	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
177
178	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
179	    (ledaction == LED_CTL_TX ||
180	     ledaction == LED_CTL_RX ||
181	     ledaction == LED_CTL_SITE_SURVEY ||
182	     ledaction == LED_CTL_LINK ||
183	     ledaction == LED_CTL_NO_LINK ||
184	     ledaction == LED_CTL_START_TO_LINK ||
185	     ledaction == LED_CTL_POWER_ON)) {
186		return;
187	}
188	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
189		ledaction);
190	_rtl8821ae_sw_led_control(hw, ledaction);
191}