LXR linux/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/led.c

   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2013  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 _rtl88ee_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 rtl88ee_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
  40{
  41        u8 ledcfg;
  42        struct rtl_priv *rtlpriv = rtl_priv(hw);
  43
  44        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  45                 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  46
  47        switch (pled->ledpin) {
  48        case LED_PIN_GPIO0:
  49                break;
  50        case LED_PIN_LED0:
  51                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  52                rtl_write_byte(rtlpriv,
  53                               REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
  54                break;
  55        case LED_PIN_LED1:
  56                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  57                rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
  58                break;
  59        default:
  60                RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
  61                         "switch case %#x not processed\n", pled->ledpin);
  62                break;
  63        }
  64        pled->ledon = true;
  65}
  66
  67void rtl88ee_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  68{
  69        struct rtl_priv *rtlpriv = rtl_priv(hw);
  70        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
  71        u8 ledcfg;
  72
  73        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  74                 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  75
  76        switch (pled->ledpin) {
  77        case LED_PIN_GPIO0:
  78                break;
  79        case LED_PIN_LED0:
  80                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  81                ledcfg &= 0xf0;
  82                if (pcipriv->ledctl.led_opendrain) {
  83                        rtl_write_byte(rtlpriv, REG_LEDCFG2,
  84                                       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
  85                        ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  86                        rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG,
  87                                       (ledcfg & 0xFE));
  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 = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  94                ledcfg &= 0x10;
  95                rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
  96                break;
  97        default:
  98                RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
  99                         "switch case %#x not processed\n", pled->ledpin);
 100                break;
 101        }
 102        pled->ledon = false;
 103}
 104
 105void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
 106{
 107        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 108        _rtl88ee_init_led(hw, &pcipriv->ledctl.sw_led0, LED_PIN_LED0);
 109        _rtl88ee_init_led(hw, &pcipriv->ledctl.sw_led1, LED_PIN_LED1);
 110}
 111
 112static void _rtl88ee_sw_led_control(struct ieee80211_hw *hw,
 113                                    enum led_ctl_mode ledaction)
 114{
 115        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 116        struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
 117        switch (ledaction) {
 118        case LED_CTL_POWER_ON:
 119        case LED_CTL_LINK:
 120        case LED_CTL_NO_LINK:
 121                rtl88ee_sw_led_on(hw, pLed0);
 122                break;
 123        case LED_CTL_POWER_OFF:
 124                rtl88ee_sw_led_off(hw, pLed0);
 125                break;
 126        default:
 127                break;
 128        }
 129}
 130
 131void rtl88ee_led_control(struct ieee80211_hw *hw,
 132                        enum led_ctl_mode ledaction)
 133{
 134        struct rtl_priv *rtlpriv = rtl_priv(hw);
 135        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 136
 137        if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 138            (ledaction == LED_CTL_TX ||
 139             ledaction == LED_CTL_RX ||
 140             ledaction == LED_CTL_SITE_SURVEY ||
 141             ledaction == LED_CTL_LINK ||
 142             ledaction == LED_CTL_NO_LINK ||
 143             ledaction == LED_CTL_START_TO_LINK ||
 144             ledaction == LED_CTL_POWER_ON)) {
 145                return;
 146        }
 147        RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
 148                                ledaction);
 149        _rtl88ee_sw_led_control(hw, ledaction);
 150}
 151