| /* |
| * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting |
| * Copyright (c) 2004-2005 Atheros Communications, Inc. |
| * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> |
| * Copyright (c) 2009 Bob Copeland <me@bobcopeland.com> |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer, |
| * without modification. |
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any |
| * redistribution must be conditioned upon including a substantially |
| * similar Disclaimer requirement for further binary redistribution. |
| * 3. Neither the names of the above-listed copyright holders nor the names |
| * of any contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY |
| * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, |
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
| * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGES. |
| * |
| */ |
| |
| #include <linux/pci.h> |
| #include "ath5k.h" |
| #include "base.h" |
| |
| void ath5k_led_enable(struct ath5k_softc *sc) |
| { |
| if (test_bit(ATH_STAT_LEDSOFT, sc->status)) { |
| ath5k_hw_set_gpio_output(sc->ah, sc->led_pin); |
| ath5k_led_off(sc); |
| } |
| } |
| |
| void ath5k_led_on(struct ath5k_softc *sc) |
| { |
| if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) |
| return; |
| ath5k_hw_set_gpio(sc->ah, sc->led_pin, sc->led_on); |
| } |
| |
| void ath5k_led_off(struct ath5k_softc *sc) |
| { |
| if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) |
| return; |
| ath5k_hw_set_gpio(sc->ah, sc->led_pin, !sc->led_on); |
| } |
| |
| static void |
| ath5k_led_brightness_set(struct led_classdev *led_dev, |
| enum led_brightness brightness) |
| { |
| struct ath5k_led *led = container_of(led_dev, struct ath5k_led, |
| led_dev); |
| |
| if (brightness == LED_OFF) |
| ath5k_led_off(led->sc); |
| else |
| ath5k_led_on(led->sc); |
| } |
| |
| static int |
| ath5k_register_led(struct ath5k_softc *sc, struct ath5k_led *led, |
| const char *name, char *trigger) |
| { |
| int err; |
| |
| led->sc = sc; |
| strncpy(led->name, name, sizeof(led->name)); |
| led->led_dev.name = led->name; |
| led->led_dev.default_trigger = trigger; |
| led->led_dev.brightness_set = ath5k_led_brightness_set; |
| |
| err = led_classdev_register(&sc->pdev->dev, &led->led_dev); |
| if (err) { |
| ATH5K_WARN(sc, "could not register LED %s\n", name); |
| led->sc = NULL; |
| } |
| return err; |
| } |
| |
| static void |
| ath5k_unregister_led(struct ath5k_led *led) |
| { |
| if (!led->sc) |
| return; |
| led_classdev_unregister(&led->led_dev); |
| ath5k_led_off(led->sc); |
| led->sc = NULL; |
| } |
| |
| void ath5k_unregister_leds(struct ath5k_softc *sc) |
| { |
| ath5k_unregister_led(&sc->rx_led); |
| ath5k_unregister_led(&sc->tx_led); |
| } |
| |
| |
| int ath5k_init_leds(struct ath5k_softc *sc) |
| { |
| int ret = 0; |
| struct ieee80211_hw *hw = sc->hw; |
| struct pci_dev *pdev = sc->pdev; |
| char name[ATH5K_LED_MAX_NAME_LEN + 1]; |
| |
| /* |
| * Auto-enable soft led processing for IBM cards and for |
| * 5211 minipci cards. |
| */ |
| if (pdev->device == PCI_DEVICE_ID_ATHEROS_AR5212_IBM || |
| pdev->device == PCI_DEVICE_ID_ATHEROS_AR5211) { |
| __set_bit(ATH_STAT_LEDSOFT, sc->status); |
| sc->led_pin = 0; |
| sc->led_on = 0; /* active low */ |
| } |
| /* Enable softled on PIN1 on HP Compaq nc6xx, nc4000 & nx5000 laptops */ |
| if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ) { |
| __set_bit(ATH_STAT_LEDSOFT, sc->status); |
| sc->led_pin = 1; |
| sc->led_on = 1; /* active high */ |
| } |
| /* |
| * Pin 3 on Foxconn chips used in Acer Aspire One (0x105b:e008) and |
| * in emachines notebooks with AMBIT subsystem. |
| */ |
| if (pdev->subsystem_vendor == PCI_VENDOR_ID_FOXCONN || |
| pdev->subsystem_vendor == PCI_VENDOR_ID_AMBIT) { |
| __set_bit(ATH_STAT_LEDSOFT, sc->status); |
| sc->led_pin = 3; |
| sc->led_on = 0; /* active low */ |
| } |
| |
| if (!test_bit(ATH_STAT_LEDSOFT, sc->status)) |
| goto out; |
| |
| ath5k_led_enable(sc); |
| |
| snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy)); |
| ret = ath5k_register_led(sc, &sc->rx_led, name, |
| ieee80211_get_rx_led_name(hw)); |
| if (ret) |
| goto out; |
| |
| snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy)); |
| ret = ath5k_register_led(sc, &sc->tx_led, name, |
| ieee80211_get_tx_led_name(hw)); |
| out: |
| return ret; |
| } |
| |