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 _rtl8723be_init_led(struct ieee80211_hw *hw,  struct rtl_led *pled,
32 				enum rtl_led_pin ledpin)
33 {
34 	pled->hw = hw;
35 	pled->ledpin = ledpin;
36 	pled->ledon = false;
37 }
38 
39 void rtl8723be_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 		ledcfg &= ~BIT(6);
53 		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
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_EMERG,
61 			 "switch case not process\n");
62 		break;
63 	}
64 	pled->ledon = true;
65 }
66 
67 void rtl8723be_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 	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
77 
78 	switch (pled->ledpin) {
79 	case LED_PIN_GPIO0:
80 		break;
81 	case LED_PIN_LED0:
82 		ledcfg &= 0xf0;
83 		if (pcipriv->ledctl.led_opendrain) {
84 			ledcfg &= 0x90; /* Set to software control. */
85 			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
86 			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
87 			ledcfg &= 0xFE;
88 			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
89 		} else {
90 			ledcfg &= ~BIT(6);
91 			rtl_write_byte(rtlpriv, REG_LEDCFG2,
92 				       (ledcfg | BIT(3) | BIT(5)));
93 		}
94 		break;
95 	case LED_PIN_LED1:
96 		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
97 		ledcfg &= 0x10; /* Set to software control. */
98 		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
99 
100 		break;
101 	default:
102 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
103 			 "switch case not process\n");
104 		break;
105 	}
106 	pled->ledon = false;
107 }
108 
109 void rtl8723be_init_sw_leds(struct ieee80211_hw *hw)
110 {
111 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
112 	_rtl8723be_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
113 	_rtl8723be_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
114 }
115 
116 static void _rtl8723be_sw_led_control(struct ieee80211_hw *hw,
117 				      enum led_ctl_mode ledaction)
118 {
119 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
120 	struct rtl_led *pled0 = &(pcipriv->ledctl.sw_led0);
121 	switch (ledaction) {
122 	case LED_CTL_POWER_ON:
123 	case LED_CTL_LINK:
124 	case LED_CTL_NO_LINK:
125 		rtl8723be_sw_led_on(hw, pled0);
126 		break;
127 	case LED_CTL_POWER_OFF:
128 		rtl8723be_sw_led_off(hw, pled0);
129 		break;
130 	default:
131 		break;
132 	}
133 }
134 
135 void rtl8723be_led_control(struct ieee80211_hw *hw,
136 			   enum led_ctl_mode ledaction)
137 {
138 	struct rtl_priv *rtlpriv = rtl_priv(hw);
139 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
140 
141 	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
142 	    (ledaction == LED_CTL_TX ||
143 	     ledaction == LED_CTL_RX ||
144 	     ledaction == LED_CTL_SITE_SURVEY ||
145 	     ledaction == LED_CTL_LINK ||
146 	     ledaction == LED_CTL_NO_LINK ||
147 	     ledaction == LED_CTL_START_TO_LINK ||
148 	     ledaction == LED_CTL_POWER_ON)) {
149 		return;
150 	}
151 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n", ledaction);
152 	_rtl8723be_sw_led_control(hw, ledaction);
153 }
154