LXR linux/drivers/net/wireless/rtlwifi/rtl8192cu/led.c

   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2010  Realtek Corporation. All rights reserved.
   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 *****************************************************************************/
  27
  28#include "../wifi.h"
  29#include "../usb.h"
  30#include "reg.h"
  31#include "led.h"
  32
  33static void _rtl92cu_init_led(struct ieee80211_hw *hw,
  34                              struct rtl_led *pled, enum rtl_led_pin ledpin)
  35{
  36        pled->hw = hw;
  37        pled->ledpin = ledpin;
  38        pled->ledon = false;
  39}
  40
  41static void _rtl92cu_deInit_led(struct rtl_led *pled)
  42{
  43}
  44
  45void rtl92cu_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
  46{
  47        u8 ledcfg;
  48        struct rtl_priv *rtlpriv = rtl_priv(hw);
  49
  50        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  51                 ("LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin));
  52        ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  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 rtl92cu_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  72{
  73        struct rtl_priv *rtlpriv = rtl_priv(hw);
  74        struct rtl_usb_priv *usbpriv = rtl_usbpriv(hw);
  75        u8 ledcfg;
  76
  77        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  78                 ("LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin));
  79        ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  80        switch (pled->ledpin) {
  81        case LED_PIN_GPIO0:
  82                break;
  83        case LED_PIN_LED0:
  84                ledcfg &= 0xf0;
  85                if (usbpriv->ledctl.led_opendrain)
  86                        rtl_write_byte(rtlpriv, REG_LEDCFG2,
  87                                       (ledcfg | BIT(1) | BIT(5) | BIT(6)));
  88                else
  89                        rtl_write_byte(rtlpriv, REG_LEDCFG2,
  90                                       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
  91                break;
  92        case LED_PIN_LED1:
  93                ledcfg &= 0x0f;
  94                rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3)));
  95                break;
  96        default:
  97                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  98                         ("switch case not process\n"));
  99                break;
 100        }
 101        pled->ledon = false;
 102}
 103
 104void rtl92cu_init_sw_leds(struct ieee80211_hw *hw)
 105{
 106        struct rtl_usb_priv *usbpriv = rtl_usbpriv(hw);
 107        _rtl92cu_init_led(hw, &(usbpriv->ledctl.sw_led0), LED_PIN_LED0);
 108        _rtl92cu_init_led(hw, &(usbpriv->ledctl.sw_led1), LED_PIN_LED1);
 109}
 110
 111void rtl92cu_deinit_sw_leds(struct ieee80211_hw *hw)
 112{
 113        struct rtl_usb_priv *usbpriv = rtl_usbpriv(hw);
 114        _rtl92cu_deInit_led(&(usbpriv->ledctl.sw_led0));
 115        _rtl92cu_deInit_led(&(usbpriv->ledctl.sw_led1));
 116}
 117
 118static void _rtl92cu_sw_led_control(struct ieee80211_hw *hw,
 119                                    enum led_ctl_mode ledaction)
 120{
 121}
 122
 123void rtl92cu_led_control(struct ieee80211_hw *hw,
 124                        enum led_ctl_mode ledaction)
 125{
 126        struct rtl_priv *rtlpriv = rtl_priv(hw);
 127        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 128
 129        if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 130            (ledaction == LED_CTL_TX ||
 131             ledaction == LED_CTL_RX ||
 132             ledaction == LED_CTL_SITE_SURVEY ||
 133             ledaction == LED_CTL_LINK ||
 134             ledaction == LED_CTL_NO_LINK ||
 135             ledaction == LED_CTL_START_TO_LINK ||
 136             ledaction == LED_CTL_POWER_ON)) {
 137                return;
 138        }
 139        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, ("ledaction %d,\n",
 140                                ledaction));
 141        _rtl92cu_sw_led_control(hw, ledaction);
 142}
 143