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
9static void _rtl92ce_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
17void rtl92de_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, "LedAddr:%X ledpin=%d\n",
23		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
31		if ((rtlpriv->efuse.eeprom_did == 0x8176) ||
32			(rtlpriv->efuse.eeprom_did == 0x8193))
33			/* BIT7 of REG_LEDCFG2 should be set to
34			 * make sure we could emit the led2. */
35			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) |
36				       BIT(7) | BIT(5) | BIT(6));
37		else
38			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) |
39				       BIT(7) | BIT(5));
40		break;
41	case LED_PIN_LED1:
42		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
43
44		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0x0f) | BIT(5));
45		break;
46	default:
47		pr_err("switch case %#x not processed\n",
48		       pled->ledpin);
49		break;
50	}
51	pled->ledon = true;
52}
53
54void rtl92de_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
55{
56	struct rtl_priv *rtlpriv = rtl_priv(hw);
57	u8 ledcfg;
58
59	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
60		REG_LEDCFG2, pled->ledpin);
61
62	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
63
64	switch (pled->ledpin) {
65	case LED_PIN_GPIO0:
66		break;
67	case LED_PIN_LED0:
68		ledcfg &= 0xf0;
69		if (rtlpriv->ledctl.led_opendrain)
70			rtl_write_byte(rtlpriv, REG_LEDCFG2,
71				       (ledcfg | BIT(1) | BIT(5) | BIT(6)));
72		else
73			rtl_write_byte(rtlpriv, REG_LEDCFG2,
74				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
75		break;
76	case LED_PIN_LED1:
77		ledcfg &= 0x0f;
78		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3)));
79		break;
80	default:
81		pr_err("switch case %#x not processed\n",
82		       pled->ledpin);
83		break;
84	}
85	pled->ledon = false;
86}
87
88void rtl92de_init_sw_leds(struct ieee80211_hw *hw)
89{
90	struct rtl_priv *rtlpriv = rtl_priv(hw);
91
92	_rtl92ce_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
93	_rtl92ce_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
94}
95
96static void _rtl92ce_sw_led_control(struct ieee80211_hw *hw,
97				    enum led_ctl_mode ledaction)
98{
99	struct rtl_priv *rtlpriv = rtl_priv(hw);
100	struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
101
102	switch (ledaction) {
103	case LED_CTL_POWER_ON:
104	case LED_CTL_LINK:
105	case LED_CTL_NO_LINK:
106		rtl92de_sw_led_on(hw, pled0);
107		break;
108	case LED_CTL_POWER_OFF:
109		rtl92de_sw_led_off(hw, pled0);
110		break;
111	default:
112		break;
113	}
114}
115
116void rtl92de_led_control(struct ieee80211_hw *hw, 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	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n", ledaction);
132
133	_rtl92ce_sw_led_control(hw, ledaction);
134}
135