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 void rtl8723e_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 		pr_err("switch case %#x not processed\n", pin);
32 		break;
33 	}
34 }
35 
36 void rtl8723e_sw_led_off(struct ieee80211_hw *hw, enum rtl_led_pin pin)
37 {
38 	struct rtl_priv *rtlpriv = rtl_priv(hw);
39 	u8 ledcfg;
40 
41 	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
42 		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pin);
43 
44 	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
45 
46 	switch (pin) {
47 	case LED_PIN_GPIO0:
48 		break;
49 	case LED_PIN_LED0:
50 		ledcfg &= 0xf0;
51 		if (rtlpriv->ledctl.led_opendrain) {
52 			ledcfg &= 0x90; /* Set to software control. */
53 			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
54 			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
55 			ledcfg &= 0xFE;
56 			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
57 		} else {
58 			ledcfg &= ~BIT(6);
59 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
60 					(ledcfg | BIT(3) | BIT(5)));
61 		}
62 		break;
63 	case LED_PIN_LED1:
64 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
65 		ledcfg &= 0x10; /* Set to software control. */
66 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
67 
68 		break;
69 	default:
70 		pr_err("switch case %#x not processed\n", pin);
71 		break;
72 	}
73 }
74 
75 static void _rtl8723e_sw_led_control(struct ieee80211_hw *hw,
76 				     enum led_ctl_mode ledaction)
77 {
78 	struct rtl_priv *rtlpriv = rtl_priv(hw);
79 	enum rtl_led_pin pin0 = rtlpriv->ledctl.sw_led0;
80 
81 	switch (ledaction) {
82 	case LED_CTL_POWER_ON:
83 	case LED_CTL_LINK:
84 	case LED_CTL_NO_LINK:
85 		rtl8723e_sw_led_on(hw, pin0);
86 		break;
87 	case LED_CTL_POWER_OFF:
88 		rtl8723e_sw_led_off(hw, pin0);
89 		break;
90 	default:
91 		break;
92 	}
93 }
94 
95 void rtl8723e_led_control(struct ieee80211_hw *hw,
96 			  enum led_ctl_mode ledaction)
97 {
98 	struct rtl_priv *rtlpriv = rtl_priv(hw);
99 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
100 
101 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
102 	    (ledaction == LED_CTL_TX ||
103 	     ledaction == LED_CTL_RX ||
104 	     ledaction == LED_CTL_SITE_SURVEY ||
105 	     ledaction == LED_CTL_LINK ||
106 	     ledaction == LED_CTL_NO_LINK ||
107 	     ledaction == LED_CTL_START_TO_LINK ||
108 	     ledaction == LED_CTL_POWER_ON)) {
109 		return;
110 	}
111 	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
112 		ledaction);
113 	_rtl8723e_sw_led_control(hw, ledaction);
114 }
115