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 _rtl92se_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 rtl92se_init_sw_leds(struct ieee80211_hw *hw)
44 {
45 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
46 	_rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
47 	_rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
48 }
49 
50 void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
51 {
52 	u8 ledcfg;
53 	struct rtl_priv *rtlpriv = rtl_priv(hw);
54 
55 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
56 		 LEDCFG, pled->ledpin);
57 
58 	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
59 
60 	switch (pled->ledpin) {
61 	case LED_PIN_GPIO0:
62 		break;
63 	case LED_PIN_LED0:
64 		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
65 		break;
66 	case LED_PIN_LED1:
67 		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
68 		break;
69 	default:
70 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
71 			 "switch case not processed\n");
72 		break;
73 	}
74 	pled->ledon = true;
75 }
76 
77 void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
78 {
79 	struct rtl_priv *rtlpriv;
80 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
81 	u8 ledcfg;
82 
83 	rtlpriv = rtl_priv(hw);
84 	if (!rtlpriv || rtlpriv->max_fw_size)
85 		return;
86 	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
87 		 LEDCFG, pled->ledpin);
88 
89 	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
90 
91 	switch (pled->ledpin) {
92 	case LED_PIN_GPIO0:
93 		break;
94 	case LED_PIN_LED0:
95 		ledcfg &= 0xf0;
96 		if (pcipriv->ledctl.led_opendrain)
97 			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
98 		else
99 			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
100 		break;
101 	case LED_PIN_LED1:
102 		ledcfg &= 0x0f;
103 		rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
104 		break;
105 	default:
106 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
107 			 "switch case not processed\n");
108 		break;
109 	}
110 	pled->ledon = false;
111 }
112 
113 static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
114 				    enum led_ctl_mode ledaction)
115 {
116 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
117 	struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
118 	switch (ledaction) {
119 	case LED_CTL_POWER_ON:
120 	case LED_CTL_LINK:
121 	case LED_CTL_NO_LINK:
122 		rtl92se_sw_led_on(hw, pLed0);
123 		break;
124 	case LED_CTL_POWER_OFF:
125 		rtl92se_sw_led_off(hw, pLed0);
126 		break;
127 	default:
128 		break;
129 	}
130 }
131 
132 void rtl92se_led_control(struct ieee80211_hw *hw, 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_LOUD, "ledaction %d\n", ledaction);
148 
149 	_rtl92se_sw_led_control(hw, ledaction);
150 }
151 
152