This patch addresses a kernel bugzilla report and two recent mail threads. The kernel bugzilla report is https://bugzilla.kernel.org/show_bug.cgi?id=42632, which reports a udev timeout on boot. The first mail thread, which was on LKML (http://lkml.indiana.edu/hypermail/ linux/kernel/1112.3/00965.html) was for a WARNING that occurs after a suspend/resume cycle for rtl8192cu. The scond mail thread (http://marc.info/?l=linux-wireless&m=132655490826766&w=2) concerned changes in udev that break drivers that delay while firmware is loaded on modprobe. This patch converts all rtlwifi-based drivers to use the asynchronous firmware loading mechanism. Drivers rtl8192ce, rtl8192cu and rtl8192de share a common callback routine. Driver rtl8192se needs different handling of the firmware, thus it has its own code. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
		
			
				
	
	
		
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			151 lines
		
	
	
	
		
			4.1 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
/******************************************************************************
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 *
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 * Copyright(c) 2009-2012  Realtek Corporation.
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 *
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 * This program is free software; you can redistribute it and/or modify it
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 * under the terms of version 2 of the GNU General Public License as
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 * published by the Free Software Foundation.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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 * more details.
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 *
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 * You should have received a copy of the GNU General Public License along with
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 * this program; if not, write to the Free Software Foundation, Inc.,
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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 *
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 * The full GNU General Public License is included in this distribution in the
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 * file called LICENSE.
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 *
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 * Contact Information:
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 * wlanfae <wlanfae@realtek.com>
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 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
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 * Hsinchu 300, Taiwan.
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 *
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 * Larry Finger <Larry.Finger@lwfinger.net>
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 *
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 *****************************************************************************/
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#include "../wifi.h"
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#include "../pci.h"
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#include "reg.h"
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#include "led.h"
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static void _rtl92se_init_led(struct ieee80211_hw *hw,
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			      struct rtl_led *pled, enum rtl_led_pin ledpin)
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{
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	pled->hw = hw;
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	pled->ledpin = ledpin;
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	pled->ledon = false;
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}
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void rtl92se_init_sw_leds(struct ieee80211_hw *hw)
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{
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	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
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	_rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
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	_rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
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}
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void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
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{
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	u8 ledcfg;
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	struct rtl_priv *rtlpriv = rtl_priv(hw);
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	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
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		 LEDCFG, pled->ledpin);
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	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
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	switch (pled->ledpin) {
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	case LED_PIN_GPIO0:
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		break;
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	case LED_PIN_LED0:
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		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
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		break;
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	case LED_PIN_LED1:
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		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
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		break;
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	default:
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		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
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			 "switch case not processed\n");
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		break;
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	}
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	pled->ledon = true;
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}
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void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
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{
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	struct rtl_priv *rtlpriv;
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	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
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	u8 ledcfg;
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	rtlpriv = rtl_priv(hw);
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	if (!rtlpriv || rtlpriv->max_fw_size)
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		return;
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	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
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		 LEDCFG, pled->ledpin);
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	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
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	switch (pled->ledpin) {
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	case LED_PIN_GPIO0:
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		break;
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	case LED_PIN_LED0:
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		ledcfg &= 0xf0;
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		if (pcipriv->ledctl.led_opendrain)
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			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
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		else
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			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
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		break;
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	case LED_PIN_LED1:
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		ledcfg &= 0x0f;
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		rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
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		break;
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	default:
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		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
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			 "switch case not processed\n");
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		break;
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	}
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	pled->ledon = false;
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}
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static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
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				    enum led_ctl_mode ledaction)
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{
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	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
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	struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
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	switch (ledaction) {
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	case LED_CTL_POWER_ON:
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	case LED_CTL_LINK:
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	case LED_CTL_NO_LINK:
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		rtl92se_sw_led_on(hw, pLed0);
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		break;
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	case LED_CTL_POWER_OFF:
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		rtl92se_sw_led_off(hw, pLed0);
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		break;
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	default:
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		break;
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	}
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}
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void rtl92se_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
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{
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	struct rtl_priv *rtlpriv = rtl_priv(hw);
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	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
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	    (ledaction == LED_CTL_TX ||
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	    ledaction == LED_CTL_RX ||
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	    ledaction == LED_CTL_SITE_SURVEY ||
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	    ledaction == LED_CTL_LINK ||
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	    ledaction == LED_CTL_NO_LINK ||
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	    ledaction == LED_CTL_START_TO_LINK ||
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	    ledaction == LED_CTL_POWER_ON)) {
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		return;
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	}
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	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
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	_rtl92se_sw_led_control(hw, ledaction);
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}
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