/*
* 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;
}
