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 35 static void _rtl92ce_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 43 void rtl92de_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, "LedAddr:%X ledpin=%d\n", 49 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 57 if ((rtlpriv->efuse.eeprom_did == 0x8176) || 58 (rtlpriv->efuse.eeprom_did == 0x8193)) 59 /* BIT7 of REG_LEDCFG2 should be set to 60 * make sure we could emit the led2. */ 61 rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) | 62 BIT(7) | BIT(5) | BIT(6)); 63 else 64 rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) | 65 BIT(7) | BIT(5)); 66 break; 67 case LED_PIN_LED1: 68 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1); 69 70 rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0x0f) | BIT(5)); 71 break; 72 default: 73 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, 74 "switch case not processed\n"); 75 break; 76 } 77 pled->ledon = true; 78 } 79 80 void rtl92de_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled) 81 { 82 struct rtl_priv *rtlpriv = rtl_priv(hw); 83 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 84 u8 ledcfg; 85 86 RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n", 87 REG_LEDCFG2, pled->ledpin); 88 89 ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2); 90 91 switch (pled->ledpin) { 92 case LED_PIN_GPIO0: 93 break; 94 case LED_PIN_LED0: 95 ledcfg &= 0xf0; 96 if (pcipriv->ledctl.led_opendrain) 97 rtl_write_byte(rtlpriv, REG_LEDCFG2, 98 (ledcfg | BIT(1) | BIT(5) | BIT(6))); 99 else 100 rtl_write_byte(rtlpriv, REG_LEDCFG2, 101 (ledcfg | BIT(3) | BIT(5) | BIT(6))); 102 break; 103 case LED_PIN_LED1: 104 ledcfg &= 0x0f; 105 rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3))); 106 break; 107 default: 108 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, 109 "switch case not processed\n"); 110 break; 111 } 112 pled->ledon = false; 113 } 114 115 void rtl92de_init_sw_leds(struct ieee80211_hw *hw) 116 { 117 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 118 _rtl92ce_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0); 119 _rtl92ce_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1); 120 } 121 122 static void _rtl92ce_sw_led_control(struct ieee80211_hw *hw, 123 enum led_ctl_mode ledaction) 124 { 125 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 126 struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0); 127 switch (ledaction) { 128 case LED_CTL_POWER_ON: 129 case LED_CTL_LINK: 130 case LED_CTL_NO_LINK: 131 rtl92de_sw_led_on(hw, pLed0); 132 break; 133 case LED_CTL_POWER_OFF: 134 rtl92de_sw_led_off(hw, pLed0); 135 break; 136 default: 137 break; 138 } 139 } 140 141 void rtl92de_led_control(struct ieee80211_hw *hw, 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", ledaction); 157 158 _rtl92ce_sw_led_control(hw, ledaction); 159 } 160