1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2013  Realtek Corporation.*/
3 
4 #include "../wifi.h"
5 #include "../pci.h"
6 #include "reg.h"
7 #include "led.h"
8 
9 static void _rtl88ee_init_led(struct ieee80211_hw *hw,
10 			      struct rtl_led *pled, enum rtl_led_pin ledpin)
11 {
12 	pled->hw = hw;
13 	pled->ledpin = ledpin;
14 	pled->ledon = false;
15 }
16 
17 void rtl88ee_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
18 {
19 	u8 ledcfg;
20 	struct rtl_priv *rtlpriv = rtl_priv(hw);
21 
22 	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
23 		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
24 
25 	switch (pled->ledpin) {
26 	case LED_PIN_GPIO0:
27 		break;
28 	case LED_PIN_LED0:
29 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
30 		rtl_write_byte(rtlpriv,
31 			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
32 		break;
33 	case LED_PIN_LED1:
34 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
35 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
36 		break;
37 	default:
38 		rtl_dbg(rtlpriv, COMP_ERR, DBG_LOUD,
39 			"switch case %#x not processed\n", pled->ledpin);
40 		break;
41 	}
42 	pled->ledon = true;
43 }
44 
45 void rtl88ee_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
46 {
47 	struct rtl_priv *rtlpriv = rtl_priv(hw);
48 	u8 ledcfg;
49 
50 	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
51 		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
52 
53 	switch (pled->ledpin) {
54 	case LED_PIN_GPIO0:
55 		break;
56 	case LED_PIN_LED0:
57 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
58 		ledcfg &= 0xf0;
59 		if (rtlpriv->ledctl.led_opendrain) {
60 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
61 				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
62 			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
63 			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG,
64 				       (ledcfg & 0xFE));
65 		} else
66 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
67 				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
68 		break;
69 	case LED_PIN_LED1:
70 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
71 		ledcfg &= 0x10;
72 		rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
73 		break;
74 	default:
75 		rtl_dbg(rtlpriv, COMP_ERR, DBG_LOUD,
76 			"switch case %#x not processed\n", pled->ledpin);
77 		break;
78 	}
79 	pled->ledon = false;
80 }
81 
82 void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
83 {
84 	struct rtl_priv *rtlpriv = rtl_priv(hw);
85 
86 	_rtl88ee_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
87 	_rtl88ee_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
88 }
89 
90 static void _rtl88ee_sw_led_control(struct ieee80211_hw *hw,
91 				    enum led_ctl_mode ledaction)
92 {
93 	struct rtl_priv *rtlpriv = rtl_priv(hw);
94 	struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
95 
96 	switch (ledaction) {
97 	case LED_CTL_POWER_ON:
98 	case LED_CTL_LINK:
99 	case LED_CTL_NO_LINK:
100 		rtl88ee_sw_led_on(hw, pled0);
101 		break;
102 	case LED_CTL_POWER_OFF:
103 		rtl88ee_sw_led_off(hw, pled0);
104 		break;
105 	default:
106 		break;
107 	}
108 }
109 
110 void rtl88ee_led_control(struct ieee80211_hw *hw,
111 			enum led_ctl_mode ledaction)
112 {
113 	struct rtl_priv *rtlpriv = rtl_priv(hw);
114 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
115 
116 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
117 	    (ledaction == LED_CTL_TX ||
118 	     ledaction == LED_CTL_RX ||
119 	     ledaction == LED_CTL_SITE_SURVEY ||
120 	     ledaction == LED_CTL_LINK ||
121 	     ledaction == LED_CTL_NO_LINK ||
122 	     ledaction == LED_CTL_START_TO_LINK ||
123 	     ledaction == LED_CTL_POWER_ON)) {
124 		return;
125 	}
126 	rtl_dbg(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
127 		ledaction);
128 	_rtl88ee_sw_led_control(hw, ledaction);
129 }
130