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1 /******************************************************************************
2  *
3  * Copyright(c) 2009-2013  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  * You should have received a copy of the GNU General Public License along with
15  * this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17  *
18  * The full GNU General Public License is included in this distribution in the
19  * file called LICENSE.
20  *
21  * Contact Information:
22  * wlanfae <wlanfae@realtek.com>
23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24  * Hsinchu 300, Taiwan.
25  *
26  * Larry Finger <Larry.Finger@lwfinger.net>
27  *
28  *****************************************************************************/
29 
30 #include "../wifi.h"
31 #include "../pci.h"
32 #include "reg.h"
33 #include "led.h"
34 
rtl88ee_init_led(struct ieee80211_hw * hw,struct rtl_led * pled,enum rtl_led_pin ledpin)35 static void rtl88ee_init_led(struct ieee80211_hw *hw,
36 			     struct rtl_led *pled, enum rtl_led_pin ledpin)
37 {
38 	pled->hw = hw;
39 	pled->ledpin = ledpin;
40 	pled->ledon = false;
41 }
42 
rtl88ee_sw_led_on(struct ieee80211_hw * hw,struct rtl_led * pled)43 void rtl88ee_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
44 {
45 	u8 ledcfg;
46 	struct rtl_priv *rtlpriv = rtl_priv(hw);
47 
48 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
49 		 "LedAddr:%X ledpin =%d\n", REG_LEDCFG2, pled->ledpin);
50 
51 	switch (pled->ledpin) {
52 	case LED_PIN_GPIO0:
53 		break;
54 	case LED_PIN_LED0:
55 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
56 		rtl_write_byte(rtlpriv, REG_LEDCFG2,
57 			       (ledcfg & 0xf0) | BIT(5) | BIT(6));
58 		break;
59 	case LED_PIN_LED1:
60 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
61 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
62 		break;
63 	default:
64 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
65 			 "switch case not processed\n");
66 		break;
67 	}
68 	pled->ledon = true;
69 }
70 
rtl88ee_sw_led_off(struct ieee80211_hw * hw,struct rtl_led * pled)71 void rtl88ee_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
72 {
73 	struct rtl_priv *rtlpriv = rtl_priv(hw);
74 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
75 	u8 ledcfg;
76 	u8 val;
77 
78 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
79 		 "LedAddr:%X ledpin =%d\n", REG_LEDCFG2, pled->ledpin);
80 
81 	switch (pled->ledpin) {
82 	case LED_PIN_GPIO0:
83 		break;
84 	case LED_PIN_LED0:
85 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
86 		ledcfg &= 0xf0;
87 		val = ledcfg | BIT(3) | BIT(5) | BIT(6);
88 		if (pcipriv->ledctl.led_opendrain == true) {
89 			rtl_write_byte(rtlpriv, REG_LEDCFG2, val);
90 			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
91 			val = ledcfg & 0xFE;
92 			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, val);
93 		} else {
94 			rtl_write_byte(rtlpriv, REG_LEDCFG2, val);
95 		}
96 		break;
97 	case LED_PIN_LED1:
98 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
99 		ledcfg &= 0x10;
100 		rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
101 		break;
102 	default:
103 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
104 			 "switch case not processed\n");
105 		break;
106 	}
107 	pled->ledon = false;
108 }
109 
rtl88ee_init_sw_leds(struct ieee80211_hw * hw)110 void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
111 {
112 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
113 
114 	rtl88ee_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
115 	rtl88ee_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
116 }
117 
rtl88ee_sw_led_control(struct ieee80211_hw * hw,enum led_ctl_mode ledaction)118 static void rtl88ee_sw_led_control(struct ieee80211_hw *hw,
119 				    enum led_ctl_mode ledaction)
120 {
121 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
122 	struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
123 
124 	switch (ledaction) {
125 	case LED_CTL_POWER_ON:
126 	case LED_CTL_LINK:
127 	case LED_CTL_NO_LINK:
128 		rtl88ee_sw_led_on(hw, pLed0);
129 		break;
130 	case LED_CTL_POWER_OFF:
131 		rtl88ee_sw_led_off(hw, pLed0);
132 		break;
133 	default:
134 		break;
135 	}
136 }
137 
rtl88ee_led_control(struct ieee80211_hw * hw,enum led_ctl_mode ledaction)138 void rtl88ee_led_control(struct ieee80211_hw *hw,
139 			enum led_ctl_mode ledaction)
140 {
141 	struct rtl_priv *rtlpriv = rtl_priv(hw);
142 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
143 
144 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
145 	    (ledaction == LED_CTL_TX ||
146 	     ledaction == LED_CTL_RX ||
147 	     ledaction == LED_CTL_SITE_SURVEY ||
148 	     ledaction == LED_CTL_LINK ||
149 	     ledaction == LED_CTL_NO_LINK ||
150 	     ledaction == LED_CTL_START_TO_LINK ||
151 	     ledaction == LED_CTL_POWER_ON)) {
152 		return;
153 	}
154 	RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
155 		 ledaction);
156 	rtl88ee_sw_led_control(hw, ledaction);
157 }
158