LXR linux/drivers/net/wireless/realtek/rtlwifi/rtl8723be/led.c

   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2014  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 _rtl8723be_init_led(struct ieee80211_hw *hw,  struct rtl_led *pled,
  32                                enum rtl_led_pin ledpin)
  33{
  34        pled->hw = hw;
  35        pled->ledpin = ledpin;
  36        pled->ledon = false;
  37}
  38
  39void rtl8723be_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                ledcfg &= ~BIT(6);
  53                rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
  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                pr_err("switch case %#x not processed\n",
  61                       pled->ledpin);
  62                break;
  63        }
  64        pled->ledon = true;
  65}
  66
  67void rtl8723be_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
  68{
  69        struct rtl_priv *rtlpriv = rtl_priv(hw);
  70        u8 ledcfg;
  71
  72        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
  73                 "LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin);
  74
  75        ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
  76
  77        switch (pled->ledpin) {
  78        case LED_PIN_GPIO0:
  79                break;
  80        case LED_PIN_LED0:
  81                ledcfg &= 0xf0;
  82                if (rtlpriv->ledctl.led_opendrain) {
  83                        ledcfg &= 0x90; /* Set to software control. */
  84                        rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
  85                        ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
  86                        ledcfg &= 0xFE;
  87                        rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
  88                } else {
  89                        ledcfg &= ~BIT(6);
  90                        rtl_write_byte(rtlpriv, REG_LEDCFG2,
  91                                       (ledcfg | BIT(3) | BIT(5)));
  92                }
  93                break;
  94        case LED_PIN_LED1:
  95                ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
  96                ledcfg &= 0x10; /* Set to software control. */
  97                rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
  98
  99                break;
 100        default:
 101                pr_err("switch case %#x not processed\n",
 102                       pled->ledpin);
 103                break;
 104        }
 105        pled->ledon = false;
 106}
 107
 108void rtl8723be_init_sw_leds(struct ieee80211_hw *hw)
 109{
 110        struct rtl_priv *rtlpriv = rtl_priv(hw);
 111
 112        _rtl8723be_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
 113        _rtl8723be_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
 114}
 115
 116static void _rtl8723be_sw_led_control(struct ieee80211_hw *hw,
 117                                      enum led_ctl_mode ledaction)
 118{
 119        struct rtl_priv *rtlpriv = rtl_priv(hw);
 120        struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
 121
 122        switch (ledaction) {
 123        case LED_CTL_POWER_ON:
 124        case LED_CTL_LINK:
 125        case LED_CTL_NO_LINK:
 126                rtl8723be_sw_led_on(hw, pled0);
 127                break;
 128        case LED_CTL_POWER_OFF:
 129                rtl8723be_sw_led_off(hw, pled0);
 130                break;
 131        default:
 132                break;
 133        }
 134}
 135
 136void rtl8723be_led_control(struct ieee80211_hw *hw,
 137                           enum led_ctl_mode ledaction)
 138{
 139        struct rtl_priv *rtlpriv = rtl_priv(hw);
 140        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 141
 142        if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
 143            (ledaction == LED_CTL_TX ||
 144             ledaction == LED_CTL_RX ||
 145             ledaction == LED_CTL_SITE_SURVEY ||
 146             ledaction == LED_CTL_LINK ||
 147             ledaction == LED_CTL_NO_LINK ||
 148             ledaction == LED_CTL_START_TO_LINK ||
 149             ledaction == LED_CTL_POWER_ON)) {
 150                return;
 151        }
 152        RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n", ledaction);
 153        _rtl8723be_sw_led_control(hw, ledaction);
 154}
 155