atheros: put atheros wireless drivers into ath/
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez
committed by
John W. Linville
John W. Linville
parent
1878f77e13
commit
203c4805e9
171
drivers/net/wireless/ath/ar9170/led.c
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171
drivers/net/wireless/ath/ar9170/led.c
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/*
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* Atheros AR9170 driver
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*
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* LED handling
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*
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* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, see
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* http://www.gnu.org/licenses/.
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*
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* This file incorporates work covered by the following copyright and
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* permission notice:
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* Copyright (c) 2007-2008 Atheros Communications, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "ar9170.h"
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#include "cmd.h"
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int ar9170_set_leds_state(struct ar9170 *ar, u32 led_state)
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{
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return ar9170_write_reg(ar, AR9170_GPIO_REG_DATA, led_state);
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}
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int ar9170_init_leds(struct ar9170 *ar)
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{
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int err;
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/* disable LEDs */
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/* GPIO [0/1 mode: output, 2/3: input] */
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err = ar9170_write_reg(ar, AR9170_GPIO_REG_PORT_TYPE, 3);
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if (err)
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goto out;
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/* GPIO 0/1 value: off */
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err = ar9170_set_leds_state(ar, 0);
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out:
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return err;
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}
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#ifdef CONFIG_AR9170_LEDS
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static void ar9170_update_leds(struct work_struct *work)
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{
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struct ar9170 *ar = container_of(work, struct ar9170, led_work.work);
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int i, tmp, blink_delay = 1000;
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u32 led_val = 0;
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bool rerun = false;
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if (unlikely(!IS_ACCEPTING_CMD(ar)))
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return ;
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mutex_lock(&ar->mutex);
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for (i = 0; i < AR9170_NUM_LEDS; i++)
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if (ar->leds[i].toggled) {
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led_val |= 1 << i;
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tmp = 70 + 200 / (ar->leds[i].toggled);
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if (tmp < blink_delay)
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blink_delay = tmp;
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if (ar->leds[i].toggled > 1)
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ar->leds[i].toggled = 0;
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rerun = true;
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}
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ar9170_set_leds_state(ar, led_val);
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mutex_unlock(&ar->mutex);
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if (rerun)
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queue_delayed_work(ar->hw->workqueue, &ar->led_work,
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msecs_to_jiffies(blink_delay));
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}
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static void ar9170_led_brightness_set(struct led_classdev *led,
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enum led_brightness brightness)
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{
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struct ar9170_led *arl = container_of(led, struct ar9170_led, l);
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struct ar9170 *ar = arl->ar;
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arl->toggled++;
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if (likely(IS_ACCEPTING_CMD(ar) && brightness))
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queue_delayed_work(ar->hw->workqueue, &ar->led_work, HZ/10);
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}
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static int ar9170_register_led(struct ar9170 *ar, int i, char *name,
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char *trigger)
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{
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int err;
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snprintf(ar->leds[i].name, sizeof(ar->leds[i].name),
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"ar9170-%s::%s", wiphy_name(ar->hw->wiphy), name);
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ar->leds[i].ar = ar;
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ar->leds[i].l.name = ar->leds[i].name;
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ar->leds[i].l.brightness_set = ar9170_led_brightness_set;
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ar->leds[i].l.brightness = 0;
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ar->leds[i].l.default_trigger = trigger;
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err = led_classdev_register(wiphy_dev(ar->hw->wiphy),
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&ar->leds[i].l);
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if (err)
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printk(KERN_ERR "%s: failed to register %s LED (%d).\n",
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wiphy_name(ar->hw->wiphy), ar->leds[i].name, err);
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else
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ar->leds[i].registered = true;
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return err;
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}
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void ar9170_unregister_leds(struct ar9170 *ar)
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{
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int i;
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cancel_delayed_work_sync(&ar->led_work);
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for (i = 0; i < AR9170_NUM_LEDS; i++)
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if (ar->leds[i].registered) {
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led_classdev_unregister(&ar->leds[i].l);
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ar->leds[i].registered = false;
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}
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}
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int ar9170_register_leds(struct ar9170 *ar)
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{
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int err;
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INIT_DELAYED_WORK(&ar->led_work, ar9170_update_leds);
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err = ar9170_register_led(ar, 0, "tx",
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ieee80211_get_tx_led_name(ar->hw));
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if (err)
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goto fail;
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err = ar9170_register_led(ar, 1, "assoc",
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ieee80211_get_assoc_led_name(ar->hw));
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if (err)
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goto fail;
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return 0;
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fail:
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ar9170_unregister_leds(ar);
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return err;
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}
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#endif /* CONFIG_AR9170_LEDS */
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