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 
9 static void _rtl8723e_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 rtl8723e_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 	RT_TRACE(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 		ledcfg &= ~BIT(6);
31 		rtl_write_byte(rtlpriv,
32 			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
33 		break;
34 	case LED_PIN_LED1:
35 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
36 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
37 		break;
38 	default:
39 		pr_err("switch case %#x not processed\n",
40 		       pled->ledpin);
41 		break;
42 	}
43 	pled->ledon = true;
44 }
45 
46 void rtl8723e_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
47 {
48 	struct rtl_priv *rtlpriv = rtl_priv(hw);
49 	u8 ledcfg;
50 
51 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
52 		 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
53 
54 	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
55 
56 	switch (pled->ledpin) {
57 	case LED_PIN_GPIO0:
58 		break;
59 	case LED_PIN_LED0:
60 		ledcfg &= 0xf0;
61 		if (rtlpriv->ledctl.led_opendrain) {
62 			ledcfg &= 0x90; /* Set to software control. */
63 			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
64 			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
65 			ledcfg &= 0xFE;
66 			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
67 		} else {
68 			ledcfg &= ~BIT(6);
69 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
70 					(ledcfg | BIT(3) | BIT(5)));
71 		}
72 		break;
73 	case LED_PIN_LED1:
74 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
75 		ledcfg &= 0x10; /* Set to software control. */
76 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
77 
78 		break;
79 	default:
80 		pr_err("switch case %#x not processed\n",
81 		       pled->ledpin);
82 		break;
83 	}
84 	pled->ledon = false;
85 }
86 
87 void rtl8723e_init_sw_leds(struct ieee80211_hw *hw)
88 {
89 	struct rtl_priv *rtlpriv = rtl_priv(hw);
90 
91 	_rtl8723e_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
92 	_rtl8723e_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
93 }
94 
95 static void _rtl8723e_sw_led_control(struct ieee80211_hw *hw,
96 				     enum led_ctl_mode ledaction)
97 {
98 	struct rtl_priv *rtlpriv = rtl_priv(hw);
99 	struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
100 
101 	switch (ledaction) {
102 	case LED_CTL_POWER_ON:
103 	case LED_CTL_LINK:
104 	case LED_CTL_NO_LINK:
105 		rtl8723e_sw_led_on(hw, pled0);
106 		break;
107 	case LED_CTL_POWER_OFF:
108 		rtl8723e_sw_led_off(hw, pled0);
109 		break;
110 	default:
111 		break;
112 	}
113 }
114 
115 void rtl8723e_led_control(struct ieee80211_hw *hw,
116 			  enum led_ctl_mode ledaction)
117 {
118 	struct rtl_priv *rtlpriv = rtl_priv(hw);
119 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
120 
121 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
122 	    (ledaction == LED_CTL_TX ||
123 	     ledaction == LED_CTL_RX ||
124 	     ledaction == LED_CTL_SITE_SURVEY ||
125 	     ledaction == LED_CTL_LINK ||
126 	     ledaction == LED_CTL_NO_LINK ||
127 	     ledaction == LED_CTL_START_TO_LINK ||
128 	     ledaction == LED_CTL_POWER_ON)) {
129 		return;
130 	}
131 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
132 		 ledaction);
133 	_rtl8723e_sw_led_control(hw, ledaction);
134 }
135