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