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 
9 static void _rtl8821ae_init_led(struct ieee80211_hw *hw,
10 				struct rtl_led *pled,
11 				enum rtl_led_pin ledpin)
12 {
13 	pled->hw = hw;
14 	pled->ledpin = ledpin;
15 	pled->ledon = false;
16 }
17 
18 void rtl8821ae_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
19 {
20 	u8 ledcfg;
21 	struct rtl_priv *rtlpriv = rtl_priv(hw);
22 
23 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
24 		 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
25 
26 	switch (pled->ledpin) {
27 	case LED_PIN_GPIO0:
28 		break;
29 	case LED_PIN_LED0:
30 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
31 		ledcfg &= ~BIT(6);
32 		rtl_write_byte(rtlpriv,
33 			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
34 		break;
35 	case LED_PIN_LED1:
36 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
37 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
38 		break;
39 	default:
40 		RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
41 			 "switch case %#x not processed\n", pled->ledpin);
42 		break;
43 	}
44 	pled->ledon = true;
45 }
46 
47 void rtl8812ae_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
48 {
49 	u16	ledreg = REG_LEDCFG1;
50 	u8	ledcfg = 0;
51 	struct rtl_priv *rtlpriv = rtl_priv(hw);
52 
53 	switch (pled->ledpin) {
54 	case LED_PIN_LED0:
55 		ledreg = REG_LEDCFG1;
56 		break;
57 
58 	case LED_PIN_LED1:
59 		ledreg = REG_LEDCFG2;
60 		break;
61 
62 	case LED_PIN_GPIO0:
63 	default:
64 		break;
65 	}
66 
67 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
68 		 "In SwLedOn, LedAddr:%X LEDPIN=%d\n",
69 		 ledreg, pled->ledpin);
70 
71 	ledcfg =  rtl_read_byte(rtlpriv, ledreg);
72 	ledcfg |= BIT(5); /*Set 0x4c[21]*/
73 	ledcfg &= ~(BIT(7) | BIT(6) | BIT(3) | BIT(2) | BIT(1) | BIT(0));
74 		/*Clear 0x4c[23:22] and 0x4c[19:16]*/
75 	rtl_write_byte(rtlpriv, ledreg, ledcfg); /*SW control led0 on.*/
76 	pled->ledon = true;
77 }
78 
79 void rtl8821ae_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
80 {
81 	struct rtl_priv *rtlpriv = rtl_priv(hw);
82 	u8 ledcfg;
83 
84 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
85 		 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
86 
87 	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
88 
89 	switch (pled->ledpin) {
90 	case LED_PIN_GPIO0:
91 		break;
92 	case LED_PIN_LED0:
93 		ledcfg &= 0xf0;
94 		if (rtlpriv->ledctl.led_opendrain) {
95 			ledcfg &= 0x90; /* Set to software control. */
96 			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
97 			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
98 			ledcfg &= 0xFE;
99 			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
100 		} else {
101 			ledcfg &= ~BIT(6);
102 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
103 				       (ledcfg | BIT(3) | BIT(5)));
104 		}
105 		break;
106 	case LED_PIN_LED1:
107 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
108 		ledcfg &= 0x10; /* Set to software control. */
109 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
110 		break;
111 	default:
112 		RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
113 			 "switch case %#x not processed\n", pled->ledpin);
114 		break;
115 	}
116 	pled->ledon = false;
117 }
118 
119 void rtl8812ae_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
120 {
121 	u16 ledreg = REG_LEDCFG1;
122 	struct rtl_priv *rtlpriv = rtl_priv(hw);
123 
124 	switch (pled->ledpin) {
125 	case LED_PIN_LED0:
126 		ledreg = REG_LEDCFG1;
127 		break;
128 
129 	case LED_PIN_LED1:
130 		ledreg = REG_LEDCFG2;
131 		break;
132 
133 	case LED_PIN_GPIO0:
134 	default:
135 		break;
136 	}
137 
138 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
139 		 "In SwLedOff,LedAddr:%X LEDPIN=%d\n",
140 		 ledreg, pled->ledpin);
141 	/*Open-drain arrangement for controlling the LED*/
142 	if (rtlpriv->ledctl.led_opendrain) {
143 		u8 ledcfg = rtl_read_byte(rtlpriv, ledreg);
144 
145 		ledreg &= 0xd0; /* Set to software control.*/
146 		rtl_write_byte(rtlpriv, ledreg, (ledcfg | BIT(3)));
147 
148 		/*Open-drain arrangement*/
149 		ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
150 		ledcfg &= 0xFE;/*Set GPIO[8] to input mode*/
151 		rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
152 	} else {
153 		rtl_write_byte(rtlpriv, ledreg, 0x28);
154 	}
155 
156 	pled->ledon = false;
157 }
158 
159 void rtl8821ae_init_sw_leds(struct ieee80211_hw *hw)
160 {
161 	struct rtl_priv *rtlpriv = rtl_priv(hw);
162 
163 	_rtl8821ae_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
164 	_rtl8821ae_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
165 }
166 
167 static void _rtl8821ae_sw_led_control(struct ieee80211_hw *hw,
168 				      enum led_ctl_mode ledaction)
169 {
170 	struct rtl_priv *rtlpriv = rtl_priv(hw);
171 	struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
172 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
173 
174 	switch (ledaction) {
175 	case LED_CTL_POWER_ON:
176 	case LED_CTL_LINK:
177 	case LED_CTL_NO_LINK:
178 		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
179 			rtl8812ae_sw_led_on(hw, pled0);
180 		else
181 			rtl8821ae_sw_led_on(hw, pled0);
182 		break;
183 	case LED_CTL_POWER_OFF:
184 		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
185 			rtl8812ae_sw_led_off(hw, pled0);
186 		else
187 			rtl8821ae_sw_led_off(hw, pled0);
188 		break;
189 	default:
190 		break;
191 	}
192 }
193 
194 void rtl8821ae_led_control(struct ieee80211_hw *hw,
195 			   enum led_ctl_mode ledaction)
196 {
197 	struct rtl_priv *rtlpriv = rtl_priv(hw);
198 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
199 
200 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
201 	    (ledaction == LED_CTL_TX ||
202 	     ledaction == LED_CTL_RX ||
203 	     ledaction == LED_CTL_SITE_SURVEY ||
204 	     ledaction == LED_CTL_LINK ||
205 	     ledaction == LED_CTL_NO_LINK ||
206 	     ledaction == LED_CTL_START_TO_LINK ||
207 	     ledaction == LED_CTL_POWER_ON)) {
208 		return;
209 	}
210 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
211 		 ledaction);
212 	_rtl8821ae_sw_led_control(hw, ledaction);
213 }
214