1 /******************************************************************************
2  *
3  * Copyright(c) 2009-2014  Realtek Corporation.
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  * Larry Finger <Larry.Finger@lwfinger.net>
23  *
24  *****************************************************************************/
25 
26 #include "../wifi.h"
27 #include "../pci.h"
28 #include "reg.h"
29 #include "led.h"
30 
31 static void _rtl92ee_init_led(struct ieee80211_hw *hw,
32 			      struct rtl_led *pled, enum rtl_led_pin ledpin)
33 {
34 	pled->hw = hw;
35 	pled->ledpin = ledpin;
36 	pled->ledon = false;
37 }
38 
39 void rtl92ee_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
40 {
41 	u32 ledcfg;
42 	struct rtl_priv *rtlpriv = rtl_priv(hw);
43 
44 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
45 		 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
46 
47 	switch (pled->ledpin) {
48 	case LED_PIN_GPIO0:
49 		break;
50 	case LED_PIN_LED0:
51 		ledcfg = rtl_read_dword(rtlpriv , REG_GPIO_PIN_CTRL);
52 		ledcfg &= ~BIT(13);
53 		ledcfg |= BIT(21);
54 		ledcfg &= ~BIT(29);
55 
56 		rtl_write_dword(rtlpriv, REG_GPIO_PIN_CTRL, ledcfg);
57 
58 		break;
59 	case LED_PIN_LED1:
60 
61 		break;
62 	default:
63 		RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
64 			 "switch case %#x not processed\n", pled->ledpin);
65 		break;
66 	}
67 	pled->ledon = true;
68 }
69 
70 void rtl92ee_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
71 {
72 	struct rtl_priv *rtlpriv = rtl_priv(hw);
73 	u32 ledcfg;
74 
75 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
76 		 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
77 
78 	switch (pled->ledpin) {
79 	case LED_PIN_GPIO0:
80 		break;
81 	case LED_PIN_LED0:
82 
83 		ledcfg = rtl_read_dword(rtlpriv , REG_GPIO_PIN_CTRL);
84 		ledcfg |= ~BIT(21);
85 		ledcfg &= ~BIT(29);
86 		rtl_write_dword(rtlpriv, REG_GPIO_PIN_CTRL, ledcfg);
87 
88 		break;
89 	case LED_PIN_LED1:
90 
91 		break;
92 	default:
93 		RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
94 			 "switch case %#x not processed\n", pled->ledpin);
95 		break;
96 	}
97 	pled->ledon = false;
98 }
99 
100 void rtl92ee_init_sw_leds(struct ieee80211_hw *hw)
101 {
102 	struct rtl_priv *rtlpriv = rtl_priv(hw);
103 
104 	_rtl92ee_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
105 	_rtl92ee_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
106 }
107 
108 static void _rtl92ee_sw_led_control(struct ieee80211_hw *hw,
109 				    enum led_ctl_mode ledaction)
110 {
111 	struct rtl_priv *rtlpriv = rtl_priv(hw);
112 	struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
113 
114 	switch (ledaction) {
115 	case LED_CTL_POWER_ON:
116 	case LED_CTL_LINK:
117 	case LED_CTL_NO_LINK:
118 		rtl92ee_sw_led_on(hw, pled0);
119 		break;
120 	case LED_CTL_POWER_OFF:
121 		rtl92ee_sw_led_off(hw, pled0);
122 		break;
123 	default:
124 		break;
125 	}
126 }
127 
128 void rtl92ee_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
129 {
130 	struct rtl_priv *rtlpriv = rtl_priv(hw);
131 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
132 
133 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
134 	    (ledaction == LED_CTL_TX ||
135 	     ledaction == LED_CTL_RX ||
136 	     ledaction == LED_CTL_SITE_SURVEY ||
137 	     ledaction == LED_CTL_LINK ||
138 	     ledaction == LED_CTL_NO_LINK ||
139 	     ledaction == LED_CTL_START_TO_LINK ||
140 	     ledaction == LED_CTL_POWER_ON)) {
141 		return;
142 	}
143 	RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n", ledaction);
144 	_rtl92ee_sw_led_control(hw, ledaction);
145 }
146