1 /******************************************************************************
2  *
3  * Copyright(c) 2009-2012  Realtek Corporation. All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  *
14  * The full GNU General Public License is included in this distribution in the
15  * file called LICENSE.
16  *
17  * Contact Information:
18  * wlanfae <wlanfae@realtek.com>
19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20  * Hsinchu 300, Taiwan.
21  *
22  *****************************************************************************/
23 
24 #include "../wifi.h"
25 #include "../usb.h"
26 #include "reg.h"
27 #include "led.h"
28 
29 static void _rtl92cu_init_led(struct ieee80211_hw *hw,
30 			      struct rtl_led *pled, enum rtl_led_pin ledpin)
31 {
32 	pled->hw = hw;
33 	pled->ledpin = ledpin;
34 	pled->ledon = false;
35 }
36 
37 static void _rtl92cu_deInit_led(struct rtl_led *pled)
38 {
39 }
40 
41 void rtl92cu_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
42 {
43 	u8 ledcfg;
44 	struct rtl_priv *rtlpriv = rtl_priv(hw);
45 
46 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
47 		 REG_LEDCFG2, pled->ledpin);
48 	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
49 	switch (pled->ledpin) {
50 	case LED_PIN_GPIO0:
51 		break;
52 	case LED_PIN_LED0:
53 		rtl_write_byte(rtlpriv,
54 			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
55 		break;
56 	case LED_PIN_LED1:
57 		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0x0f) | BIT(5));
58 		break;
59 	default:
60 		pr_err("switch case %#x not processed\n",
61 		       pled->ledpin);
62 		break;
63 	}
64 	pled->ledon = true;
65 }
66 
67 void rtl92cu_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
68 {
69 	struct rtl_priv *rtlpriv = rtl_priv(hw);
70 	u8 ledcfg;
71 
72 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
73 		 REG_LEDCFG2, pled->ledpin);
74 	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
75 	switch (pled->ledpin) {
76 	case LED_PIN_GPIO0:
77 		break;
78 	case LED_PIN_LED0:
79 		ledcfg &= 0xf0;
80 		if (rtlpriv->ledctl.led_opendrain)
81 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
82 				       (ledcfg | BIT(1) | BIT(5) | BIT(6)));
83 		else
84 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
85 				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
86 		break;
87 	case LED_PIN_LED1:
88 		ledcfg &= 0x0f;
89 		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3)));
90 		break;
91 	default:
92 		pr_err("switch case %#x not processed\n",
93 		       pled->ledpin);
94 		break;
95 	}
96 	pled->ledon = false;
97 }
98 
99 void rtl92cu_init_sw_leds(struct ieee80211_hw *hw)
100 {
101 	struct rtl_priv *rtlpriv = rtl_priv(hw);
102 
103 	_rtl92cu_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
104 	_rtl92cu_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
105 }
106 
107 void rtl92cu_deinit_sw_leds(struct ieee80211_hw *hw)
108 {
109 	struct rtl_priv *rtlpriv = rtl_priv(hw);
110 
111 	_rtl92cu_deInit_led(&rtlpriv->ledctl.sw_led0);
112 	_rtl92cu_deInit_led(&rtlpriv->ledctl.sw_led1);
113 }
114 
115 static void _rtl92cu_sw_led_control(struct ieee80211_hw *hw,
116 				    enum led_ctl_mode ledaction)
117 {
118 }
119 
120 void rtl92cu_led_control(struct ieee80211_hw *hw,
121 			enum led_ctl_mode ledaction)
122 {
123 	struct rtl_priv *rtlpriv = rtl_priv(hw);
124 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
125 
126 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
127 	    (ledaction == LED_CTL_TX ||
128 	     ledaction == LED_CTL_RX ||
129 	     ledaction == LED_CTL_SITE_SURVEY ||
130 	     ledaction == LED_CTL_LINK ||
131 	     ledaction == LED_CTL_NO_LINK ||
132 	     ledaction == LED_CTL_START_TO_LINK ||
133 	     ledaction == LED_CTL_POWER_ON)) {
134 		return;
135 	}
136 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
137 	_rtl92cu_sw_led_control(hw, ledaction);
138 }
139