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  * 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 _rtl92se_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 rtl92se_init_sw_leds(struct ieee80211_hw *hw)
40 {
41 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
42 	_rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
43 	_rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
44 }
45 
46 void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
47 {
48 	u8 ledcfg;
49 	struct rtl_priv *rtlpriv = rtl_priv(hw);
50 
51 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
52 		 LEDCFG, pled->ledpin);
53 
54 	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
55 
56 	switch (pled->ledpin) {
57 	case LED_PIN_GPIO0:
58 		break;
59 	case LED_PIN_LED0:
60 		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
61 		break;
62 	case LED_PIN_LED1:
63 		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
64 		break;
65 	default:
66 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
67 			 "switch case %#x not processed\n", pled->ledpin);
68 		break;
69 	}
70 	pled->ledon = true;
71 }
72 
73 void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
74 {
75 	struct rtl_priv *rtlpriv;
76 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
77 	u8 ledcfg;
78 
79 	rtlpriv = rtl_priv(hw);
80 	if (!rtlpriv || rtlpriv->max_fw_size)
81 		return;
82 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
83 		 LEDCFG, pled->ledpin);
84 
85 	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
86 
87 	switch (pled->ledpin) {
88 	case LED_PIN_GPIO0:
89 		break;
90 	case LED_PIN_LED0:
91 		ledcfg &= 0xf0;
92 		if (pcipriv->ledctl.led_opendrain)
93 			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
94 		else
95 			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
96 		break;
97 	case LED_PIN_LED1:
98 		ledcfg &= 0x0f;
99 		rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
100 		break;
101 	default:
102 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
103 			 "switch case %#x not processed\n", pled->ledpin);
104 		break;
105 	}
106 	pled->ledon = false;
107 }
108 
109 static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
110 				    enum led_ctl_mode ledaction)
111 {
112 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
113 	struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
114 	switch (ledaction) {
115 	case LED_CTL_POWER_ON:
116 	case LED_CTL_LINK:
117 	case LED_CTL_NO_LINK:
118 		rtl92se_sw_led_on(hw, pLed0);
119 		break;
120 	case LED_CTL_POWER_OFF:
121 		rtl92se_sw_led_off(hw, pLed0);
122 		break;
123 	default:
124 		break;
125 	}
126 }
127 
128 void rtl92se_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_LOUD, "ledaction %d\n", ledaction);
144 
145 	_rtl92se_sw_led_control(hw, ledaction);
146 }
147 
148