LXR linux/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/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 * 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 _rtl8723e_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 rtl8723e_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                ledcfg &= ~BIT(6);
  57                rtl_write_byte(rtlpriv,
  58                               REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
  59                break;
  60        case LED_PIN_LED1:
  61                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  62                rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
  63                break;
  64        default:
  65                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  66                         "switch case not process\n");
  67                break;
  68        }
  69        pled->ledon = true;
  70}
  71
  72void rtl8723e_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  73{
  74        struct rtl_priv *rtlpriv = rtl_priv(hw);
  75        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
  76        u8 ledcfg;
  77
  78        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  79                 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  80
  81        ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  82
  83        switch (pled->ledpin) {
  84        case LED_PIN_GPIO0:
  85                break;
  86        case LED_PIN_LED0:
  87                ledcfg &= 0xf0;
  88                if (pcipriv->ledctl.led_opendrain) {
  89                        ledcfg &= 0x90; /* Set to software control. */
  90                        rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
  91                        ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  92                        ledcfg &= 0xFE;
  93                        rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
  94                } else {
  95                        ledcfg &= ~BIT(6);
  96                        rtl_write_byte(rtlpriv, REG_LEDCFG2,
  97                                        (ledcfg | BIT(3) | BIT(5)));
  98                }
  99                break;
 100        case LED_PIN_LED1:
 101                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 102                ledcfg &= 0x10; /* Set to software control. */
 103                rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
 104
 105                break;
 106        default:
 107                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 108                         "switch case not process\n");
 109                break;
 110        }
 111        pled->ledon = false;
 112}
 113
 114void rtl8723e_init_sw_leds(struct ieee80211_hw *hw)
 115{
 116        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 117        _rtl8723e_init_led(hw, &pcipriv->ledctl.sw_led0, LED_PIN_LED0);
 118        _rtl8723e_init_led(hw, &pcipriv->ledctl.sw_led1, LED_PIN_LED1);
 119}
 120
 121static void _rtl8723e_sw_led_control(struct ieee80211_hw *hw,
 122                                     enum led_ctl_mode ledaction)
 123{
 124        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 125        struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
 126        switch (ledaction) {
 127        case LED_CTL_POWER_ON:
 128        case LED_CTL_LINK:
 129        case LED_CTL_NO_LINK:
 130                rtl8723e_sw_led_on(hw, pLed0);
 131                break;
 132        case LED_CTL_POWER_OFF:
 133                rtl8723e_sw_led_off(hw, pLed0);
 134                break;
 135        default:
 136                break;
 137        }
 138}
 139
 140void rtl8723e_led_control(struct ieee80211_hw *hw,
 141                          enum led_ctl_mode ledaction)
 142{
 143        struct rtl_priv *rtlpriv = rtl_priv(hw);
 144        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 145
 146        if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 147            (ledaction == LED_CTL_TX ||
 148             ledaction == LED_CTL_RX ||
 149             ledaction == LED_CTL_SITE_SURVEY ||
 150             ledaction == LED_CTL_LINK ||
 151             ledaction == LED_CTL_NO_LINK ||
 152             ledaction == LED_CTL_START_TO_LINK ||
 153             ledaction == LED_CTL_POWER_ON)) {
 154                return;
 155        }
 156        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n",
 157                 ledaction);
 158        _rtl8723e_sw_led_control(hw, ledaction);
 159}
 160