led.c revision e10542c447abf7c840931ff12f7d0dee976ca2ea 
1/******************************************************************************
2 *
3 * Copyright(c) 2009-2010  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
35static void _rtl92ce_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
43void rtl92ce_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	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
52
53	switch (pled->ledpin) {
54	case LED_PIN_GPIO0:
55		break;
56	case LED_PIN_LED0:
57		rtl_write_byte(rtlpriv,
58			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
59		break;
60	case LED_PIN_LED1:
61		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0x0f) | BIT(5));
62		break;
63	default:
64		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
65			 ("switch case not process\n"));
66		break;
67	}
68	pled->ledon = true;
69}
70
71void rtl92ce_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
72{
73	struct rtl_priv *rtlpriv = rtl_priv(hw);
74	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
75	u8 ledcfg;
76
77	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
78		 ("LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin));
79
80	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
81
82	switch (pled->ledpin) {
83	case LED_PIN_GPIO0:
84		break;
85	case LED_PIN_LED0:
86		ledcfg &= 0xf0;
87		if (pcipriv->ledctl.led_opendrain)
88			rtl_write_byte(rtlpriv, REG_LEDCFG2,
89				       (ledcfg | BIT(1) | BIT(5) | BIT(6)));
90		else
91			rtl_write_byte(rtlpriv, REG_LEDCFG2,
92				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
93		break;
94	case LED_PIN_LED1:
95		ledcfg &= 0x0f;
96		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3)));
97		break;
98	default:
99		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
100			 ("switch case not process\n"));
101		break;
102	}
103	pled->ledon = false;
104}
105
106void rtl92ce_init_sw_leds(struct ieee80211_hw *hw)
107{
108	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
109	_rtl92ce_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
110	_rtl92ce_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
111}
112
113static void _rtl92ce_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		rtl92ce_sw_led_on(hw, pLed0);
123		break;
124	case LED_CTL_POWER_OFF:
125		rtl92ce_sw_led_off(hw, pLed0);
126		break;
127	default:
128		break;
129	}
130}
131
132void rtl92ce_led_control(struct ieee80211_hw *hw,
133			enum led_ctl_mode ledaction)
134{
135	struct rtl_priv *rtlpriv = rtl_priv(hw);
136	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
137
138	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
139	    (ledaction == LED_CTL_TX ||
140	     ledaction == LED_CTL_RX ||
141	     ledaction == LED_CTL_SITE_SURVEY ||
142	     ledaction == LED_CTL_LINK ||
143	     ledaction == LED_CTL_NO_LINK ||
144	     ledaction == LED_CTL_START_TO_LINK ||
145	     ledaction == LED_CTL_POWER_ON)) {
146		return;
147	}
148	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, ("ledaction %d.\n",
149				ledaction));
150	_rtl92ce_sw_led_control(hw, ledaction);
151}
152