Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[linux-2.6.git] / drivers / net / wireless / rtlwifi / rtl8192ce / led.c
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
35 static 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
43 void 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
71 void 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
106 void 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
113 static 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
132 void 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 }