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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
31static 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
39void 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
67void 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
109void 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
116static 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
135void 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