1 /******************************************************************************
2  *
3  * Copyright(c) 2009-2012  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 
35 static void _rtl8723e_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 
43 void rtl8723e_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 		ledcfg &= ~BIT(6);
57 		rtl_write_byte(rtlpriv,
58 			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
59 		break;
60 	case LED_PIN_LED1:
61 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
62 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
63 		break;
64 	default:
65 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
66 			 "switch case not process\n");
67 		break;
68 	}
69 	pled->ledon = true;
70 }
71 
72 void rtl8723e_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
73 {
74 	struct rtl_priv *rtlpriv = rtl_priv(hw);
75 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
76 	u8 ledcfg;
77 
78 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
79 		 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
80 
81 	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
82 
83 	switch (pled->ledpin) {
84 	case LED_PIN_GPIO0:
85 		break;
86 	case LED_PIN_LED0:
87 		ledcfg &= 0xf0;
88 		if (pcipriv->ledctl.led_opendrain) {
89 			ledcfg &= 0x90; /* Set to software control. */
90 			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
91 			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
92 			ledcfg &= 0xFE;
93 			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
94 		} else {
95 			ledcfg &= ~BIT(6);
96 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
97 					(ledcfg | BIT(3) | BIT(5)));
98 		}
99 		break;
100 	case LED_PIN_LED1:
101 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
102 		ledcfg &= 0x10; /* Set to software control. */
103 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
104 
105 		break;
106 	default:
107 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
108 			 "switch case not process\n");
109 		break;
110 	}
111 	pled->ledon = false;
112 }
113 
114 void rtl8723e_init_sw_leds(struct ieee80211_hw *hw)
115 {
116 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
117 	_rtl8723e_init_led(hw, &pcipriv->ledctl.sw_led0, LED_PIN_LED0);
118 	_rtl8723e_init_led(hw, &pcipriv->ledctl.sw_led1, LED_PIN_LED1);
119 }
120 
121 static void _rtl8723e_sw_led_control(struct ieee80211_hw *hw,
122 				     enum led_ctl_mode ledaction)
123 {
124 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
125 	struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
126 	switch (ledaction) {
127 	case LED_CTL_POWER_ON:
128 	case LED_CTL_LINK:
129 	case LED_CTL_NO_LINK:
130 		rtl8723e_sw_led_on(hw, pLed0);
131 		break;
132 	case LED_CTL_POWER_OFF:
133 		rtl8723e_sw_led_off(hw, pLed0);
134 		break;
135 	default:
136 		break;
137 	}
138 }
139 
140 void rtl8723e_led_control(struct ieee80211_hw *hw,
141 			  enum led_ctl_mode ledaction)
142 {
143 	struct rtl_priv *rtlpriv = rtl_priv(hw);
144 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
145 
146 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
147 	    (ledaction == LED_CTL_TX ||
148 	     ledaction == LED_CTL_RX ||
149 	     ledaction == LED_CTL_SITE_SURVEY ||
150 	     ledaction == LED_CTL_LINK ||
151 	     ledaction == LED_CTL_NO_LINK ||
152 	     ledaction == LED_CTL_START_TO_LINK ||
153 	     ledaction == LED_CTL_POWER_ON)) {
154 		return;
155 	}
156 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
157 		 ledaction);
158 	_rtl8723e_sw_led_control(hw, ledaction);
159 }
160