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 _rtl92se_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 rtl92se_init_sw_leds(struct ieee80211_hw *hw)
18 {
19 	struct rtl_priv *rtlpriv = rtl_priv(hw);
20 
21 	_rtl92se_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
22 	_rtl92se_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
23 }
24 
25 void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
26 {
27 	u8 ledcfg;
28 	struct rtl_priv *rtlpriv = rtl_priv(hw);
29 
30 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
31 		 LEDCFG, pled->ledpin);
32 
33 	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
34 
35 	switch (pled->ledpin) {
36 	case LED_PIN_GPIO0:
37 		break;
38 	case LED_PIN_LED0:
39 		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
40 		break;
41 	case LED_PIN_LED1:
42 		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
43 		break;
44 	default:
45 		pr_err("switch case %#x not processed\n",
46 		       pled->ledpin);
47 		break;
48 	}
49 	pled->ledon = true;
50 }
51 
52 void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
53 {
54 	struct rtl_priv *rtlpriv;
55 	u8 ledcfg;
56 
57 	rtlpriv = rtl_priv(hw);
58 	if (!rtlpriv || rtlpriv->max_fw_size)
59 		return;
60 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
61 		 LEDCFG, pled->ledpin);
62 
63 	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
64 
65 	switch (pled->ledpin) {
66 	case LED_PIN_GPIO0:
67 		break;
68 	case LED_PIN_LED0:
69 		ledcfg &= 0xf0;
70 		if (rtlpriv->ledctl.led_opendrain)
71 			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
72 		else
73 			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
74 		break;
75 	case LED_PIN_LED1:
76 		ledcfg &= 0x0f;
77 		rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
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 static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
88 				    enum led_ctl_mode ledaction)
89 {
90 	struct rtl_priv *rtlpriv = rtl_priv(hw);
91 	struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
92 
93 	switch (ledaction) {
94 	case LED_CTL_POWER_ON:
95 	case LED_CTL_LINK:
96 	case LED_CTL_NO_LINK:
97 		rtl92se_sw_led_on(hw, pled0);
98 		break;
99 	case LED_CTL_POWER_OFF:
100 		rtl92se_sw_led_off(hw, pled0);
101 		break;
102 	default:
103 		break;
104 	}
105 }
106 
107 void rtl92se_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
108 {
109 	struct rtl_priv *rtlpriv = rtl_priv(hw);
110 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
111 
112 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
113 	    (ledaction == LED_CTL_TX ||
114 	    ledaction == LED_CTL_RX ||
115 	    ledaction == LED_CTL_SITE_SURVEY ||
116 	    ledaction == LED_CTL_LINK ||
117 	    ledaction == LED_CTL_NO_LINK ||
118 	    ledaction == LED_CTL_START_TO_LINK ||
119 	    ledaction == LED_CTL_POWER_ON)) {
120 		return;
121 	}
122 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
123 
124 	_rtl92se_sw_led_control(hw, ledaction);
125 }
126 
127