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) */ 56 static DEFINE_PCI_DEVICE_TABLE(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, 1) }, 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 90 void ath5k_led_enable(struct ath5k_hw *ah) 91 { 92 if (test_bit(ATH_STAT_LEDSOFT, ah->status)) { 93 ath5k_hw_set_gpio_output(ah, ah->led_pin); 94 ath5k_led_off(ah); 95 } 96 } 97 98 static void ath5k_led_on(struct ath5k_hw *ah) 99 { 100 if (!test_bit(ATH_STAT_LEDSOFT, ah->status)) 101 return; 102 ath5k_hw_set_gpio(ah, ah->led_pin, ah->led_on); 103 } 104 105 void ath5k_led_off(struct ath5k_hw *ah) 106 { 107 if (!test_bit(ATH_STAT_LEDSOFT, ah->status)) 108 return; 109 ath5k_hw_set_gpio(ah, ah->led_pin, !ah->led_on); 110 } 111 112 static void 113 ath5k_led_brightness_set(struct led_classdev *led_dev, 114 enum led_brightness brightness) 115 { 116 struct ath5k_led *led = container_of(led_dev, struct ath5k_led, 117 led_dev); 118 119 if (brightness == LED_OFF) 120 ath5k_led_off(led->ah); 121 else 122 ath5k_led_on(led->ah); 123 } 124 125 static int 126 ath5k_register_led(struct ath5k_hw *ah, struct ath5k_led *led, 127 const char *name, char *trigger) 128 { 129 int err; 130 131 led->ah = ah; 132 strncpy(led->name, name, sizeof(led->name)); 133 led->led_dev.name = led->name; 134 led->led_dev.default_trigger = trigger; 135 led->led_dev.brightness_set = ath5k_led_brightness_set; 136 137 err = led_classdev_register(ah->dev, &led->led_dev); 138 if (err) { 139 ATH5K_WARN(ah, "could not register LED %s\n", name); 140 led->ah = NULL; 141 } 142 return err; 143 } 144 145 static void 146 ath5k_unregister_led(struct ath5k_led *led) 147 { 148 if (!led->ah) 149 return; 150 led_classdev_unregister(&led->led_dev); 151 ath5k_led_off(led->ah); 152 led->ah = NULL; 153 } 154 155 void ath5k_unregister_leds(struct ath5k_hw *ah) 156 { 157 ath5k_unregister_led(&ah->rx_led); 158 ath5k_unregister_led(&ah->tx_led); 159 } 160 161 int ath5k_init_leds(struct ath5k_hw *ah) 162 { 163 int ret = 0; 164 struct ieee80211_hw *hw = ah->hw; 165 #ifndef CONFIG_ATHEROS_AR231X 166 struct pci_dev *pdev = ah->pdev; 167 #endif 168 char name[ATH5K_LED_MAX_NAME_LEN + 1]; 169 const struct pci_device_id *match; 170 171 if (!ah->pdev) 172 return 0; 173 174 #ifdef CONFIG_ATHEROS_AR231X 175 match = NULL; 176 #else 177 match = pci_match_id(&ath5k_led_devices[0], pdev); 178 #endif 179 if (match) { 180 __set_bit(ATH_STAT_LEDSOFT, ah->status); 181 ah->led_pin = ATH_PIN(match->driver_data); 182 ah->led_on = ATH_POLARITY(match->driver_data); 183 } 184 185 if (!test_bit(ATH_STAT_LEDSOFT, ah->status)) 186 goto out; 187 188 ath5k_led_enable(ah); 189 190 snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy)); 191 ret = ath5k_register_led(ah, &ah->rx_led, name, 192 ieee80211_get_rx_led_name(hw)); 193 if (ret) 194 goto out; 195 196 snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy)); 197 ret = ath5k_register_led(ah, &ah->tx_led, name, 198 ieee80211_get_tx_led_name(hw)); 199 out: 200 return ret; 201 } 202 203