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  * 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 _rtl88ee_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 rtl88ee_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
40 {
41 	u8 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_byte(rtlpriv, REG_LEDCFG2);
52 		rtl_write_byte(rtlpriv,
53 			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
54 		break;
55 	case LED_PIN_LED1:
56 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
57 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
58 		break;
59 	default:
60 		RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
61 			 "switch case %#x not processed\n", pled->ledpin);
62 		break;
63 	}
64 	pled->ledon = true;
65 }
66 
67 void rtl88ee_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
68 {
69 	struct rtl_priv *rtlpriv = rtl_priv(hw);
70 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
71 	u8 ledcfg;
72 
73 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
74 		 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
75 
76 	switch (pled->ledpin) {
77 	case LED_PIN_GPIO0:
78 		break;
79 	case LED_PIN_LED0:
80 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
81 		ledcfg &= 0xf0;
82 		if (pcipriv->ledctl.led_opendrain) {
83 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
84 				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
85 			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
86 			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG,
87 				       (ledcfg & 0xFE));
88 		} else
89 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
90 				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
91 		break;
92 	case LED_PIN_LED1:
93 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
94 		ledcfg &= 0x10;
95 		rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
96 		break;
97 	default:
98 		RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
99 			 "switch case %#x not processed\n", pled->ledpin);
100 		break;
101 	}
102 	pled->ledon = false;
103 }
104 
105 void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
106 {
107 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
108 	_rtl88ee_init_led(hw, &pcipriv->ledctl.sw_led0, LED_PIN_LED0);
109 	_rtl88ee_init_led(hw, &pcipriv->ledctl.sw_led1, LED_PIN_LED1);
110 }
111 
112 static void _rtl88ee_sw_led_control(struct ieee80211_hw *hw,
113 				    enum led_ctl_mode ledaction)
114 {
115 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
116 	struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
117 	switch (ledaction) {
118 	case LED_CTL_POWER_ON:
119 	case LED_CTL_LINK:
120 	case LED_CTL_NO_LINK:
121 		rtl88ee_sw_led_on(hw, pLed0);
122 		break;
123 	case LED_CTL_POWER_OFF:
124 		rtl88ee_sw_led_off(hw, pLed0);
125 		break;
126 	default:
127 		break;
128 	}
129 }
130 
131 void rtl88ee_led_control(struct ieee80211_hw *hw,
132 			enum led_ctl_mode ledaction)
133 {
134 	struct rtl_priv *rtlpriv = rtl_priv(hw);
135 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
136 
137 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
138 	    (ledaction == LED_CTL_TX ||
139 	     ledaction == LED_CTL_RX ||
140 	     ledaction == LED_CTL_SITE_SURVEY ||
141 	     ledaction == LED_CTL_LINK ||
142 	     ledaction == LED_CTL_NO_LINK ||
143 	     ledaction == LED_CTL_START_TO_LINK ||
144 	     ledaction == LED_CTL_POWER_ON)) {
145 		return;
146 	}
147 	RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
148 				ledaction);
149 	_rtl88ee_sw_led_control(hw, ledaction);
150 }
151