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1/*2 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting3 * Copyright (c) 2004-2005 Atheros Communications, Inc.4 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>5 * Copyright (c) 2009 Bob Copeland <me@bobcopeland.com>6 *7 * All rights reserved.8 *9 * Redistribution and use in source and binary forms, with or without10 * modification, are permitted provided that the following conditions11 * are met:12 * 1. Redistributions of source code must retain the above copyright13 * notice, this list of conditions and the following disclaimer,14 * without modification.15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer16 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any17 * redistribution must be conditioned upon including a substantially18 * similar Disclaimer requirement for further binary redistribution.19 * 3. Neither the names of the above-listed copyright holders nor the names20 * of any contributors may be used to endorse or promote products derived21 * from this software without specific prior written permission.22 *23 * Alternatively, this software may be distributed under the terms of the24 * GNU General Public License ("GPL") version 2 as published by the Free25 * Software Foundation.26 *27 * NO WARRANTY28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT30 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY31 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL32 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,33 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER36 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF38 * THE POSSIBILITY OF SUCH DAMAGES.39 *40 */41 42#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt43 44#include <linux/pci.h>45#include "ath5k.h"46 47#define ATH_SDEVICE(subv, subd) \48 .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \49 .subvendor = (subv), .subdevice = (subd)50 51#define ATH_LED(pin, polarity) .driver_data = (((pin) << 8) | (polarity))52#define ATH_PIN(data) ((data) >> 8)53#define ATH_POLARITY(data) ((data) & 0xff)54 55/* Devices we match on for LED config info (typically laptops) */56static const struct pci_device_id ath5k_led_devices[] = {57 /* AR5211 */58 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5211), ATH_LED(0, 0) },59 /* HP Compaq nc6xx, nc4000, nx6000 */60 { ATH_SDEVICE(PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID), ATH_LED(1, 1) },61 /* Acer Aspire One A150 (maximlevitsky@gmail.com) */62 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe008), ATH_LED(3, 0) },63 /* Acer Aspire One AO531h AO751h (keng-yu.lin@canonical.com) */64 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe00d), ATH_LED(3, 0) },65 /* Acer Ferrari 5000 (russ.dill@gmail.com) */66 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0422), ATH_LED(1, 1) },67 /* E-machines E510 (tuliom@gmail.com) */68 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0428), ATH_LED(3, 0) },69 /* BenQ Joybook R55v (nowymarluk@wp.pl) */70 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0100), ATH_LED(1, 0) },71 /* Acer Extensa 5620z (nekoreeve@gmail.com) */72 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0105), ATH_LED(3, 0) },73 /* Fukato Datacask Jupiter 1014a (mrb74@gmx.at) */74 { ATH_SDEVICE(PCI_VENDOR_ID_AZWAVE, 0x1026), ATH_LED(3, 0) },75 /* IBM ThinkPad AR5BXB6 (legovini@spiro.fisica.unipd.it) */76 { ATH_SDEVICE(PCI_VENDOR_ID_IBM, 0x058a), ATH_LED(1, 0) },77 /* HP Compaq CQ60-206US (ddreggors@jumptv.com) */78 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137a), ATH_LED(3, 1) },79 /* HP Compaq C700 (nitrousnrg@gmail.com) */80 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 0) },81 /* LiteOn AR5BXB63 (magooz@salug.it) */82 { ATH_SDEVICE(PCI_VENDOR_ID_ATHEROS, 0x3067), ATH_LED(3, 0) },83 /* IBM-specific AR5212 (all others) */84 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5212_IBM), ATH_LED(0, 0) },85 /* Dell Vostro A860 (shahar@shahar-or.co.il) */86 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0112), ATH_LED(3, 0) },87 { }88};89 90void ath5k_led_enable(struct ath5k_hw *ah)91{92 if (IS_ENABLED(CONFIG_MAC80211_LEDS) &&93 test_bit(ATH_STAT_LEDSOFT, ah->status)) {94 ath5k_hw_set_gpio_output(ah, ah->led_pin);95 ath5k_led_off(ah);96 }97}98 99static void ath5k_led_on(struct ath5k_hw *ah)100{101 if (!test_bit(ATH_STAT_LEDSOFT, ah->status))102 return;103 ath5k_hw_set_gpio(ah, ah->led_pin, ah->led_on);104}105 106void ath5k_led_off(struct ath5k_hw *ah)107{108 if (!IS_ENABLED(CONFIG_MAC80211_LEDS) ||109 !test_bit(ATH_STAT_LEDSOFT, ah->status))110 return;111 ath5k_hw_set_gpio(ah, ah->led_pin, !ah->led_on);112}113 114static void115ath5k_led_brightness_set(struct led_classdev *led_dev,116 enum led_brightness brightness)117{118 struct ath5k_led *led = container_of(led_dev, struct ath5k_led,119 led_dev);120 121 if (brightness == LED_OFF)122 ath5k_led_off(led->ah);123 else124 ath5k_led_on(led->ah);125}126 127static int128ath5k_register_led(struct ath5k_hw *ah, struct ath5k_led *led,129 const char *name, const char *trigger)130{131 int err;132 133 led->ah = ah;134 strscpy(led->name, name, sizeof(led->name));135 led->led_dev.name = led->name;136 led->led_dev.default_trigger = trigger;137 led->led_dev.brightness_set = ath5k_led_brightness_set;138 139 err = led_classdev_register(ah->dev, &led->led_dev);140 if (err) {141 ATH5K_WARN(ah, "could not register LED %s\n", name);142 led->ah = NULL;143 }144 return err;145}146 147static void148ath5k_unregister_led(struct ath5k_led *led)149{150 if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || !led->ah)151 return;152 led_classdev_unregister(&led->led_dev);153 ath5k_led_off(led->ah);154 led->ah = NULL;155}156 157void ath5k_unregister_leds(struct ath5k_hw *ah)158{159 ath5k_unregister_led(&ah->rx_led);160 ath5k_unregister_led(&ah->tx_led);161}162 163int ath5k_init_leds(struct ath5k_hw *ah)164{165 int ret = 0;166 struct ieee80211_hw *hw = ah->hw;167#ifndef CONFIG_ATH5K_AHB168 struct pci_dev *pdev = ah->pdev;169#endif170 char name[ATH5K_LED_MAX_NAME_LEN + 1];171 const struct pci_device_id *match;172 173 if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || !ah->pdev)174 return 0;175 176#ifdef CONFIG_ATH5K_AHB177 match = NULL;178#else179 match = pci_match_id(&ath5k_led_devices[0], pdev);180#endif181 if (match) {182 __set_bit(ATH_STAT_LEDSOFT, ah->status);183 ah->led_pin = ATH_PIN(match->driver_data);184 ah->led_on = ATH_POLARITY(match->driver_data);185 }186 187 if (!test_bit(ATH_STAT_LEDSOFT, ah->status))188 goto out;189 190 ath5k_led_enable(ah);191 192 snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy));193 ret = ath5k_register_led(ah, &ah->rx_led, name,194 ieee80211_get_rx_led_name(hw));195 if (ret)196 goto out;197 198 snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy));199 ret = ath5k_register_led(ah, &ah->tx_led, name,200 ieee80211_get_tx_led_name(hw));201out:202 return ret;203}204 205