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 #include <linux/pci.h> 43 #include "ath5k.h" 44 #include "base.h" 45 46 #define ATH_SDEVICE(subv,subd) \ 47 .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \ 48 .subvendor = (subv), .subdevice = (subd) 49 50 #define ATH_LED(pin,polarity) .driver_data = (((pin) << 8) | (polarity)) 51 #define ATH_PIN(data) ((data) >> 8) 52 #define ATH_POLARITY(data) ((data) & 0xff) 53 54 /* Devices we match on for LED config info (typically laptops) */ 55 static const struct pci_device_id ath5k_led_devices[] = { 56 /* AR5211 */ 57 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5211), ATH_LED(0, 0) }, 58 /* HP Compaq nc6xx, nc4000, nx6000 */ 59 { ATH_SDEVICE(PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID), ATH_LED(1, 1) }, 60 /* Acer Aspire One A150 (maximlevitsky@gmail.com) */ 61 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe008), ATH_LED(3, 0) }, 62 /* Acer Ferrari 5000 (russ.dill@gmail.com) */ 63 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0422), ATH_LED(1, 1) }, 64 /* E-machines E510 (tuliom@gmail.com) */ 65 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0428), ATH_LED(3, 0) }, 66 /* Acer Extensa 5620z (nekoreeve@gmail.com) */ 67 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0105), ATH_LED(3, 0) }, 68 /* Fukato Datacask Jupiter 1014a (mrb74@gmx.at) */ 69 { ATH_SDEVICE(PCI_VENDOR_ID_AZWAVE, 0x1026), ATH_LED(3, 0) }, 70 /* IBM ThinkPad AR5BXB6 (legovini@spiro.fisica.unipd.it) */ 71 { ATH_SDEVICE(PCI_VENDOR_ID_IBM, 0x058a), ATH_LED(1, 0) }, 72 /* HP Compaq C700 (nitrousnrg@gmail.com) */ 73 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 1) }, 74 /* IBM-specific AR5212 (all others) */ 75 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5212_IBM), ATH_LED(0, 0) }, 76 { } 77 }; 78 79 void ath5k_led_enable(struct ath5k_softc *sc) 80 { 81 if (test_bit(ATH_STAT_LEDSOFT, sc->status)) { 82 ath5k_hw_set_gpio_output(sc->ah, sc->led_pin); 83 ath5k_led_off(sc); 84 } 85 } 86 87 static void ath5k_led_on(struct ath5k_softc *sc) 88 { 89 if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) 90 return; 91 ath5k_hw_set_gpio(sc->ah, sc->led_pin, sc->led_on); 92 } 93 94 void ath5k_led_off(struct ath5k_softc *sc) 95 { 96 if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) 97 return; 98 ath5k_hw_set_gpio(sc->ah, sc->led_pin, !sc->led_on); 99 } 100 101 static void 102 ath5k_led_brightness_set(struct led_classdev *led_dev, 103 enum led_brightness brightness) 104 { 105 struct ath5k_led *led = container_of(led_dev, struct ath5k_led, 106 led_dev); 107 108 if (brightness == LED_OFF) 109 ath5k_led_off(led->sc); 110 else 111 ath5k_led_on(led->sc); 112 } 113 114 static int 115 ath5k_register_led(struct ath5k_softc *sc, struct ath5k_led *led, 116 const char *name, char *trigger) 117 { 118 int err; 119 120 led->sc = sc; 121 strncpy(led->name, name, sizeof(led->name)); 122 led->led_dev.name = led->name; 123 led->led_dev.default_trigger = trigger; 124 led->led_dev.brightness_set = ath5k_led_brightness_set; 125 126 err = led_classdev_register(&sc->pdev->dev, &led->led_dev); 127 if (err) { 128 ATH5K_WARN(sc, "could not register LED %s\n", name); 129 led->sc = NULL; 130 } 131 return err; 132 } 133 134 static void 135 ath5k_unregister_led(struct ath5k_led *led) 136 { 137 if (!led->sc) 138 return; 139 led_classdev_unregister(&led->led_dev); 140 ath5k_led_off(led->sc); 141 led->sc = NULL; 142 } 143 144 void ath5k_unregister_leds(struct ath5k_softc *sc) 145 { 146 ath5k_unregister_led(&sc->rx_led); 147 ath5k_unregister_led(&sc->tx_led); 148 } 149 150 int ath5k_init_leds(struct ath5k_softc *sc) 151 { 152 int ret = 0; 153 struct ieee80211_hw *hw = sc->hw; 154 struct pci_dev *pdev = sc->pdev; 155 char name[ATH5K_LED_MAX_NAME_LEN + 1]; 156 const struct pci_device_id *match; 157 158 match = pci_match_id(&ath5k_led_devices[0], pdev); 159 if (match) { 160 __set_bit(ATH_STAT_LEDSOFT, sc->status); 161 sc->led_pin = ATH_PIN(match->driver_data); 162 sc->led_on = ATH_POLARITY(match->driver_data); 163 } 164 165 if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) 166 goto out; 167 168 ath5k_led_enable(sc); 169 170 snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy)); 171 ret = ath5k_register_led(sc, &sc->rx_led, name, 172 ieee80211_get_rx_led_name(hw)); 173 if (ret) 174 goto out; 175 176 snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy)); 177 ret = ath5k_register_led(sc, &sc->tx_led, name, 178 ieee80211_get_tx_led_name(hw)); 179 out: 180 return ret; 181 } 182 183