LXR linux/drivers/net/wireless/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 * 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
  35static void rtl88ee_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
  43void rtl88ee_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        switch (pled->ledpin) {
  52        case LED_PIN_GPIO0:
  53                break;
  54        case LED_PIN_LED0:
  55                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  56                rtl_write_byte(rtlpriv, REG_LEDCFG2,
  57                               (ledcfg & 0xf0) | BIT(5) | BIT(6));
  58                break;
  59        case LED_PIN_LED1:
  60                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  61                rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
  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
  71void rtl88ee_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        u8 val;
  77
  78        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  79                 "LedAddr:%X ledpin =%d\n", REG_LEDCFG2, pled->ledpin);
  80
  81        switch (pled->ledpin) {
  82        case LED_PIN_GPIO0:
  83                break;
  84        case LED_PIN_LED0:
  85                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  86                ledcfg &= 0xf0;
  87                val = ledcfg | BIT(3) | BIT(5) | BIT(6);
  88                if (pcipriv->ledctl.led_opendrain == true) {
  89                        rtl_write_byte(rtlpriv, REG_LEDCFG2, val);
  90                        ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  91                        val = ledcfg & 0xFE;
  92                        rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, val);
  93                } else {
  94                        rtl_write_byte(rtlpriv, REG_LEDCFG2, val);
  95                }
  96                break;
  97        case LED_PIN_LED1:
  98                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  99                ledcfg &= 0x10;
 100                rtl_write_byte(rtlpriv, REG_LEDCFG1, (ledcfg | BIT(3)));
 101                break;
 102        default:
 103                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 104                         "switch case not processed\n");
 105                break;
 106        }
 107        pled->ledon = false;
 108}
 109
 110void rtl88ee_init_sw_leds(struct ieee80211_hw *hw)
 111{
 112        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 113
 114        rtl88ee_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
 115        rtl88ee_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
 116}
 117
 118static void rtl88ee_sw_led_control(struct ieee80211_hw *hw,
 119                                    enum led_ctl_mode ledaction)
 120{
 121        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 122        struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
 123
 124        switch (ledaction) {
 125        case LED_CTL_POWER_ON:
 126        case LED_CTL_LINK:
 127        case LED_CTL_NO_LINK:
 128                rtl88ee_sw_led_on(hw, pLed0);
 129                break;
 130        case LED_CTL_POWER_OFF:
 131                rtl88ee_sw_led_off(hw, pLed0);
 132                break;
 133        default:
 134                break;
 135        }
 136}
 137
 138void rtl88ee_led_control(struct ieee80211_hw *hw,
 139                        enum led_ctl_mode ledaction)
 140{
 141        struct rtl_priv *rtlpriv = rtl_priv(hw);
 142        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 143
 144        if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 145            (ledaction == LED_CTL_TX ||
 146             ledaction == LED_CTL_RX ||
 147             ledaction == LED_CTL_SITE_SURVEY ||
 148             ledaction == LED_CTL_LINK ||
 149             ledaction == LED_CTL_NO_LINK ||
 150             ledaction == LED_CTL_START_TO_LINK ||
 151             ledaction == LED_CTL_POWER_ON)) {
 152                return;
 153        }
 154        RT_TRACE(rtlpriv, COMP_LED, DBG_TRACE, "ledaction %d,\n",
 155                 ledaction);
 156        rtl88ee_sw_led_control(hw, ledaction);
 157}
 158