LXR linux/drivers/net/wireless/realtek/rtlwifi/rtl8192se/led.c

   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 * 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 _rtl92se_init_led(struct ieee80211_hw *hw,
  32                              struct rtl_led *pled, enum rtl_led_pin ledpin)
  33{
  34        pled->hw = hw;
  35        pled->ledpin = ledpin;
  36        pled->ledon = false;
  37}
  38
  39void rtl92se_init_sw_leds(struct ieee80211_hw *hw)
  40{
  41        struct rtl_priv *rtlpriv = rtl_priv(hw);
  42
  43        _rtl92se_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
  44        _rtl92se_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
  45}
  46
  47void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
  48{
  49        u8 ledcfg;
  50        struct rtl_priv *rtlpriv = rtl_priv(hw);
  51
  52        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
  53                 LEDCFG, pled->ledpin);
  54
  55        ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
  56
  57        switch (pled->ledpin) {
  58        case LED_PIN_GPIO0:
  59                break;
  60        case LED_PIN_LED0:
  61                rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
  62                break;
  63        case LED_PIN_LED1:
  64                rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
  65                break;
  66        default:
  67                pr_err("switch case %#x not processed\n",
  68                       pled->ledpin);
  69                break;
  70        }
  71        pled->ledon = true;
  72}
  73
  74void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  75{
  76        struct rtl_priv *rtlpriv;
  77        u8 ledcfg;
  78
  79        rtlpriv = rtl_priv(hw);
  80        if (!rtlpriv || rtlpriv->max_fw_size)
  81                return;
  82        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
  83                 LEDCFG, pled->ledpin);
  84
  85        ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
  86
  87        switch (pled->ledpin) {
  88        case LED_PIN_GPIO0:
  89                break;
  90        case LED_PIN_LED0:
  91                ledcfg &= 0xf0;
  92                if (rtlpriv->ledctl.led_opendrain)
  93                        rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
  94                else
  95                        rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
  96                break;
  97        case LED_PIN_LED1:
  98                ledcfg &= 0x0f;
  99                rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
 100                break;
 101        default:
 102                pr_err("switch case %#x not processed\n",
 103                       pled->ledpin);
 104                break;
 105        }
 106        pled->ledon = false;
 107}
 108
 109static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
 110                                    enum led_ctl_mode ledaction)
 111{
 112        struct rtl_priv *rtlpriv = rtl_priv(hw);
 113        struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
 114
 115        switch (ledaction) {
 116        case LED_CTL_POWER_ON:
 117        case LED_CTL_LINK:
 118        case LED_CTL_NO_LINK:
 119                rtl92se_sw_led_on(hw, pled0);
 120                break;
 121        case LED_CTL_POWER_OFF:
 122                rtl92se_sw_led_off(hw, pled0);
 123                break;
 124        default:
 125                break;
 126        }
 127}
 128
 129void rtl92se_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
 130{
 131        struct rtl_priv *rtlpriv = rtl_priv(hw);
 132        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 133
 134        if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 135            (ledaction == LED_CTL_TX ||
 136            ledaction == LED_CTL_RX ||
 137            ledaction == LED_CTL_SITE_SURVEY ||
 138            ledaction == LED_CTL_LINK ||
 139            ledaction == LED_CTL_NO_LINK ||
 140            ledaction == LED_CTL_START_TO_LINK ||
 141            ledaction == LED_CTL_POWER_ON)) {
 142                return;
 143        }
 144        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
 145
 146        _rtl92se_sw_led_control(hw, ledaction);
 147}
 148
 149