1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2009-2010  Realtek Corporation.*/
3
4#include "../wifi.h"
5#include "../pci.h"
6#include "reg.h"
7#include "led.h"
8
9static void _rtl8821ae_init_led(struct ieee80211_hw *hw,
10				struct rtl_led *pled,
11				enum rtl_led_pin ledpin)
12{
13	pled->hw = hw;
14	pled->ledpin = ledpin;
15	pled->ledon = false;
16}
17
18void rtl8821ae_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
19{
20	u8 ledcfg;
21	struct rtl_priv *rtlpriv = rtl_priv(hw);
22
23	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
24		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
25
26	switch (pled->ledpin) {
27	case LED_PIN_GPIO0:
28		break;
29	case LED_PIN_LED0:
30		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
31		ledcfg &= ~BIT(6);
32		rtl_write_byte(rtlpriv,
33			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
34		break;
35	case LED_PIN_LED1:
36		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
37		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
38		break;
39	default:
40		rtl_dbg(rtlpriv, COMP_ERR, DBG_LOUD,
41			"switch case %#x not processed\n", pled->ledpin);
42		break;
43	}
44	pled->ledon = true;
45}
46
47void rtl8812ae_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
48{
49	u16	ledreg = REG_LEDCFG1;
50	u8	ledcfg = 0;
51	struct rtl_priv *rtlpriv = rtl_priv(hw);
52
53	switch (pled->ledpin) {
54	case LED_PIN_LED0:
55		ledreg = REG_LEDCFG1;
56		break;
57
58	case LED_PIN_LED1:
59		ledreg = REG_LEDCFG2;
60		break;
61
62	case LED_PIN_GPIO0:
63	default:
64		break;
65	}
66
67	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
68		"In SwLedOn, LedAddr:%X LEDPIN=%d\n",
69		ledreg, pled->ledpin);
70
71	ledcfg =  rtl_read_byte(rtlpriv, ledreg);
72	ledcfg |= BIT(5); /*Set 0x4c[21]*/
73	ledcfg &= ~(BIT(7) | BIT(6) | BIT(3) | BIT(2) | BIT(1) | BIT(0));
74		/*Clear 0x4c[23:22] and 0x4c[19:16]*/
75	rtl_write_byte(rtlpriv, ledreg, ledcfg); /*SW control led0 on.*/
76	pled->ledon = true;
77}
78
79void rtl8821ae_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
80{
81	struct rtl_priv *rtlpriv = rtl_priv(hw);
82	u8 ledcfg;
83
84	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
85		"LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
86
87	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
88
89	switch (pled->ledpin) {
90	case LED_PIN_GPIO0:
91		break;
92	case LED_PIN_LED0:
93		ledcfg &= 0xf0;
94		if (rtlpriv->ledctl.led_opendrain) {
95			ledcfg &= 0x90; /* Set to software control. */
96			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
97			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
98			ledcfg &= 0xFE;
99			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
100		} else {
101			ledcfg &= ~BIT(6);
102			rtl_write_byte(rtlpriv, REG_LEDCFG2,
103				       (ledcfg | BIT(3) | BIT(5)));
104		}
105		break;
106	case LED_PIN_LED1:
107		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
108		ledcfg &= 0x10; /* Set to software control. */
109		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
110		break;
111	default:
112		rtl_dbg(rtlpriv, COMP_ERR, DBG_LOUD,
113			"switch case %#x not processed\n", pled->ledpin);
114		break;
115	}
116	pled->ledon = false;
117}
118
119void rtl8812ae_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
120{
121	u16 ledreg = REG_LEDCFG1;
122	struct rtl_priv *rtlpriv = rtl_priv(hw);
123
124	switch (pled->ledpin) {
125	case LED_PIN_LED0:
126		ledreg = REG_LEDCFG1;
127		break;
128
129	case LED_PIN_LED1:
130		ledreg = REG_LEDCFG2;
131		break;
132
133	case LED_PIN_GPIO0:
134	default:
135		break;
136	}
137
138	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD,
139		"In SwLedOff,LedAddr:%X LEDPIN=%d\n",
140		ledreg, pled->ledpin);
141	/*Open-drain arrangement for controlling the LED*/
142	if (rtlpriv->ledctl.led_opendrain) {
143		u8 ledcfg = rtl_read_byte(rtlpriv, ledreg);
144
145		ledreg &= 0xd0; /* Set to software control.*/
146		rtl_write_byte(rtlpriv, ledreg, (ledcfg | BIT(3)));
147
148		/*Open-drain arrangement*/
149		ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
150		ledcfg &= 0xFE;/*Set GPIO[8] to input mode*/
151		rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
152	} else {
153		rtl_write_byte(rtlpriv, ledreg, 0x28);
154	}
155
156	pled->ledon = false;
157}
158
159void rtl8821ae_init_sw_leds(struct ieee80211_hw *hw)
160{
161	struct rtl_priv *rtlpriv = rtl_priv(hw);
162
163	_rtl8821ae_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
164	_rtl8821ae_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
165}
166
167static void _rtl8821ae_sw_led_control(struct ieee80211_hw *hw,
168				      enum led_ctl_mode ledaction)
169{
170	struct rtl_priv *rtlpriv = rtl_priv(hw);
171	struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
172	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
173
174	switch (ledaction) {
175	case LED_CTL_POWER_ON:
176	case LED_CTL_LINK:
177	case LED_CTL_NO_LINK:
178		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
179			rtl8812ae_sw_led_on(hw, pled0);
180		else
181			rtl8821ae_sw_led_on(hw, pled0);
182		break;
183	case LED_CTL_POWER_OFF:
184		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
185			rtl8812ae_sw_led_off(hw, pled0);
186		else
187			rtl8821ae_sw_led_off(hw, pled0);
188		break;
189	default:
190		break;
191	}
192}
193
194void rtl8821ae_led_control(struct ieee80211_hw *hw,
195			   enum led_ctl_mode ledaction)
196{
197	struct rtl_priv *rtlpriv = rtl_priv(hw);
198	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
199
200	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
201	    (ledaction == LED_CTL_TX ||
202	     ledaction == LED_CTL_RX ||
203	     ledaction == LED_CTL_SITE_SURVEY ||
204	     ledaction == LED_CTL_LINK ||
205	     ledaction == LED_CTL_NO_LINK ||
206	     ledaction == LED_CTL_START_TO_LINK ||
207	     ledaction == LED_CTL_POWER_ON)) {
208		return;
209	}
210	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
211		ledaction);
212	_rtl8821ae_sw_led_control(hw, ledaction);
213}
214