diff options
Diffstat (limited to 'drivers/net/wireless/ath/ar9170/led.c')
| -rw-r--r-- | drivers/net/wireless/ath/ar9170/led.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/drivers/net/wireless/ath/ar9170/led.c b/drivers/net/wireless/ath/ar9170/led.c deleted file mode 100644 index 832d90087f8a..000000000000 --- a/drivers/net/wireless/ath/ar9170/led.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * Atheros AR9170 driver - * - * LED handling - * - * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, see - * http://www.gnu.org/licenses/. - * - * This file incorporates work covered by the following copyright and - * permission notice: - * Copyright (c) 2007-2008 Atheros Communications, Inc. - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "ar9170.h" -#include "cmd.h" - -int ar9170_set_leds_state(struct ar9170 *ar, u32 led_state) -{ - return ar9170_write_reg(ar, AR9170_GPIO_REG_DATA, led_state); -} - -int ar9170_init_leds(struct ar9170 *ar) -{ - int err; - - /* disable LEDs */ - /* GPIO [0/1 mode: output, 2/3: input] */ - err = ar9170_write_reg(ar, AR9170_GPIO_REG_PORT_TYPE, 3); - if (err) - goto out; - - /* GPIO 0/1 value: off */ - err = ar9170_set_leds_state(ar, 0); - -out: - return err; -} - -#ifdef CONFIG_AR9170_LEDS -static void ar9170_update_leds(struct work_struct *work) -{ - struct ar9170 *ar = container_of(work, struct ar9170, led_work.work); - int i, tmp, blink_delay = 1000; - u32 led_val = 0; - bool rerun = false; - - if (unlikely(!IS_ACCEPTING_CMD(ar))) - return ; - - mutex_lock(&ar->mutex); - for (i = 0; i < AR9170_NUM_LEDS; i++) - if (ar->leds[i].registered && ar->leds[i].toggled) { - led_val |= 1 << i; - - tmp = 70 + 200 / (ar->leds[i].toggled); - if (tmp < blink_delay) - blink_delay = tmp; - - if (ar->leds[i].toggled > 1) - ar->leds[i].toggled = 0; - - rerun = true; - } - - ar9170_set_leds_state(ar, led_val); - mutex_unlock(&ar->mutex); - - if (!rerun) - return; - - ieee80211_queue_delayed_work(ar->hw, - &ar->led_work, - msecs_to_jiffies(blink_delay)); -} - -static void ar9170_led_brightness_set(struct led_classdev *led, - enum led_brightness brightness) -{ - struct ar9170_led *arl = container_of(led, struct ar9170_led, l); - struct ar9170 *ar = arl->ar; - - if (unlikely(!arl->registered)) - return ; - - if (arl->last_state != !!brightness) { - arl->toggled++; - arl->last_state = !!brightness; - } - - if (likely(IS_ACCEPTING_CMD(ar) && arl->toggled)) - ieee80211_queue_delayed_work(ar->hw, &ar->led_work, HZ/10); -} - -static int ar9170_register_led(struct ar9170 *ar, int i, char *name, - char *trigger) -{ - int err; - - snprintf(ar->leds[i].name, sizeof(ar->leds[i].name), - "ar9170-%s::%s", wiphy_name(ar->hw->wiphy), name); - - ar->leds[i].ar = ar; - ar->leds[i].l.name = ar->leds[i].name; - ar->leds[i].l.brightness_set = ar9170_led_brightness_set; - ar->leds[i].l.brightness = 0; - ar->leds[i].l.default_trigger = trigger; - - err = led_classdev_register(wiphy_dev(ar->hw->wiphy), - &ar->leds[i].l); - if (err) - wiphy_err(ar->hw->wiphy, "failed to register %s LED (%d).\n", - ar->leds[i].name, err); - else - ar->leds[i].registered = true; - - return err; -} - -void ar9170_unregister_leds(struct ar9170 *ar) -{ - int i; - - for (i = 0; i < AR9170_NUM_LEDS; i++) - if (ar->leds[i].registered) { - led_classdev_unregister(&ar->leds[i].l); - ar->leds[i].registered = false; - ar->leds[i].toggled = 0; - } - - cancel_delayed_work_sync(&ar->led_work); -} - -int ar9170_register_leds(struct ar9170 *ar) -{ - int err; - - INIT_DELAYED_WORK(&ar->led_work, ar9170_update_leds); - - err = ar9170_register_led(ar, 0, "tx", - ieee80211_get_tx_led_name(ar->hw)); - if (err) - goto fail; - - err = ar9170_register_led(ar, 1, "assoc", - ieee80211_get_assoc_led_name(ar->hw)); - if (err) - goto fail; - - return 0; - -fail: - ar9170_unregister_leds(ar); - return err; -} - -#endif /* CONFIG_AR9170_LEDS */ |