1/* 2 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 3 * 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 without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 17 * redistribution must be conditioned upon including a substantially 18 * similar Disclaimer requirement for further binary redistribution. 19 * 3. Neither the names of the above-listed copyright holders nor the names 20 * of any contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * Alternatively, this software may be distributed under the terms of the 24 * GNU General Public License ("GPL") version 2 as published by the Free 25 * Software Foundation. 26 * 27 * NO WARRANTY 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 31 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 32 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 33 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 36 * 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 OF 38 * THE POSSIBILITY OF SUCH DAMAGES. 39 * 40 */ 41 42#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 43 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 void 115ath5k_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 else 124 ath5k_led_on(led->ah); 125} 126 127static int 128ath5k_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 void 148ath5k_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_AHB 168 struct pci_dev *pdev = ah->pdev; 169#endif 170 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_AHB 177 match = NULL; 178#else 179 match = pci_match_id(&ath5k_led_devices[0], pdev); 180#endif 181 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