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led.c
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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 <[email protected]>
23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24  * Hsinchu 300, Taiwan.
25  *
26  * Larry Finger <[email protected]>
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, "LedAddr:%X ledpin=%d\n",
49  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 processed\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, "LedAddr:%X ledpin=%d\n",
78  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 processed\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 }
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