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 Aspire One AO531h AO751h (keng-yu.lin@canonical.com) */ 63 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe00d), ATH_LED(3, 0) }, 64 /* Acer Ferrari 5000 (russ.dill@gmail.com) */ 65 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0422), ATH_LED(1, 1) }, 66 /* E-machines E510 (tuliom@gmail.com) */ 67 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0428), ATH_LED(3, 0) }, 68 /* BenQ Joybook R55v (nowymarluk@wp.pl) */ 69 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0100), ATH_LED(1, 0) }, 70 /* Acer Extensa 5620z (nekoreeve@gmail.com) */ 71 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0105), ATH_LED(3, 0) }, 72 /* Fukato Datacask Jupiter 1014a (mrb74@gmx.at) */ 73 { ATH_SDEVICE(PCI_VENDOR_ID_AZWAVE, 0x1026), ATH_LED(3, 0) }, 74 /* IBM ThinkPad AR5BXB6 (legovini@spiro.fisica.unipd.it) */ 75 { ATH_SDEVICE(PCI_VENDOR_ID_IBM, 0x058a), ATH_LED(1, 0) }, 76 /* HP Compaq CQ60-206US (ddreggors@jumptv.com) */ 77 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137a), ATH_LED(3, 1) }, 78 /* HP Compaq C700 (nitrousnrg@gmail.com) */ 79 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 1) }, 80 /* LiteOn AR5BXB63 (magooz@salug.it) */ 81 { ATH_SDEVICE(PCI_VENDOR_ID_ATHEROS, 0x3067), ATH_LED(3, 0) }, 82 /* IBM-specific AR5212 (all others) */ 83 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5212_IBM), ATH_LED(0, 0) }, 84 /* Dell Vostro A860 (shahar@shahar-or.co.il) */ 85 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0112), ATH_LED(3, 0) }, 86 { } 87 }; 88 89 void ath5k_led_enable(struct ath5k_softc *sc) 90 { 91 if (test_bit(ATH_STAT_LEDSOFT, sc->status)) { 92 ath5k_hw_set_gpio_output(sc->ah, sc->led_pin); 93 ath5k_led_off(sc); 94 } 95 } 96 97 static void ath5k_led_on(struct ath5k_softc *sc) 98 { 99 if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) 100 return; 101 ath5k_hw_set_gpio(sc->ah, sc->led_pin, sc->led_on); 102 } 103 104 void ath5k_led_off(struct ath5k_softc *sc) 105 { 106 if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) 107 return; 108 ath5k_hw_set_gpio(sc->ah, sc->led_pin, !sc->led_on); 109 } 110 111 static void 112 ath5k_led_brightness_set(struct led_classdev *led_dev, 113 enum led_brightness brightness) 114 { 115 struct ath5k_led *led = container_of(led_dev, struct ath5k_led, 116 led_dev); 117 118 if (brightness == LED_OFF) 119 ath5k_led_off(led->sc); 120 else 121 ath5k_led_on(led->sc); 122 } 123 124 static int 125 ath5k_register_led(struct ath5k_softc *sc, struct ath5k_led *led, 126 const char *name, char *trigger) 127 { 128 int err; 129 130 led->sc = sc; 131 strncpy(led->name, name, sizeof(led->name)); 132 led->led_dev.name = led->name; 133 led->led_dev.default_trigger = trigger; 134 led->led_dev.brightness_set = ath5k_led_brightness_set; 135 136 err = led_classdev_register(sc->dev, &led->led_dev); 137 if (err) { 138 ATH5K_WARN(sc, "could not register LED %s\n", name); 139 led->sc = NULL; 140 } 141 return err; 142 } 143 144 static void 145 ath5k_unregister_led(struct ath5k_led *led) 146 { 147 if (!led->sc) 148 return; 149 led_classdev_unregister(&led->led_dev); 150 ath5k_led_off(led->sc); 151 led->sc = NULL; 152 } 153 154 void ath5k_unregister_leds(struct ath5k_softc *sc) 155 { 156 ath5k_unregister_led(&sc->rx_led); 157 ath5k_unregister_led(&sc->tx_led); 158 } 159 160 int ath5k_init_leds(struct ath5k_softc *sc) 161 { 162 int ret = 0; 163 struct ieee80211_hw *hw = sc->hw; 164 #ifndef CONFIG_ATHEROS_AR231X 165 struct pci_dev *pdev = sc->pdev; 166 #endif 167 char name[ATH5K_LED_MAX_NAME_LEN + 1]; 168 const struct pci_device_id *match; 169 170 if (!sc->pdev) 171 return 0; 172 173 #ifdef CONFIG_ATHEROS_AR231X 174 match = NULL; 175 #else 176 match = pci_match_id(&ath5k_led_devices[0], pdev); 177 #endif 178 if (match) { 179 __set_bit(ATH_STAT_LEDSOFT, sc->status); 180 sc->led_pin = ATH_PIN(match->driver_data); 181 sc->led_on = ATH_POLARITY(match->driver_data); 182 } 183 184 if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) 185 goto out; 186 187 ath5k_led_enable(sc); 188 189 snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy)); 190 ret = ath5k_register_led(sc, &sc->rx_led, name, 191 ieee80211_get_rx_led_name(hw)); 192 if (ret) 193 goto out; 194 195 snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy)); 196 ret = ath5k_register_led(sc, &sc->tx_led, name, 197 ieee80211_get_tx_led_name(hw)); 198 out: 199 return ret; 200 } 201 202