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130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/*
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Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
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<http://rt2x00.serialmonkey.com>
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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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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the
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Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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Module: rt2x00lib
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Abstract: rt2x00 rfkill specific routines.
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Supported chipsets: RT2460, RT2560, rt2561, rt2561s, rt2661.
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*/
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/*
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* Set enviroment defines for rt2x00.h
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*/
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#define DRV_NAME "rt2x00lib"
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#include <linux/rfkill.h>
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#include "rt2x00.h"
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static int rt2x00lib_toggle_radio(void *data, enum rfkill_state state)
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{
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struct rt2x00_dev* rt2x00dev = data;
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int retval = 0;
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if (unlikely(!rt2x00dev))
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return 0;
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/*
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* Only continue if we have an active interface,
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* either monitor or non-monitor should be present.
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*/
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if (!is_interface_present(&rt2x00dev->interface) &&
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!is_monitor_present(&rt2x00dev->interface))
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return 0;
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if (state == RFKILL_STATE_ON) {
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INFO(rt2x00dev, "Hardware button pressed, enabling radio.\n");
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__set_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags);
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retval = rt2x00lib_enable_radio(rt2x00dev);
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} else if (state == RFKILL_STATE_OFF) {
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INFO(rt2x00dev, "Hardware button pressed, disabling radio.\n");
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__clear_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags);
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rt2x00lib_disable_radio(rt2x00dev);
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}
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return retval;
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}
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static void rt2x00lib_rfkill_poll(struct work_struct *work)
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{
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struct rt2x00_dev *rt2x00dev =
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container_of(work, struct rt2x00_dev, rfkill_work.work);
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rfkill_switch_all(rt2x00dev->rfkill->type,
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rt2x00dev->ops->lib->rfkill_poll(rt2x00dev));
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queue_delayed_work(rt2x00dev->hw->workqueue, &rt2x00dev->rfkill_work,
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RFKILL_POLL_INTERVAL);
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}
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int rt2x00lib_register_rfkill(struct rt2x00_dev *rt2x00dev)
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{
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int status = rfkill_register(rt2x00dev->rfkill);
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if (status) {
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ERROR(rt2x00dev, "Failed to register rfkill handler.\n");
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return status;
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}
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rt2x00lib_rfkill_poll(&rt2x00dev->rfkill_work.work);
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return !schedule_delayed_work(&rt2x00dev->rfkill_work,
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RFKILL_POLL_INTERVAL);
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}
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void rt2x00lib_unregister_rfkill(struct rt2x00_dev *rt2x00dev)
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{
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if (delayed_work_pending(&rt2x00dev->rfkill_work))
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cancel_rearming_delayed_workqueue(
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rt2x00dev->hw->workqueue, &rt2x00dev->rfkill_work);
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rfkill_unregister(rt2x00dev->rfkill);
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}
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int rt2x00lib_allocate_rfkill(struct rt2x00_dev *rt2x00dev)
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{
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struct rfkill *rfkill;
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if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
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return 0;
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rfkill = rfkill_allocate(rt2x00dev->device, RFKILL_TYPE_WLAN);
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if (!rfkill) {
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ERROR(rt2x00dev, "Failed to allocate rfkill handler.\n");
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return -ENOMEM;
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}
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rfkill->name = rt2x00dev->ops->name;
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rfkill->data = rt2x00dev;
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rfkill->toggle_radio = rt2x00lib_toggle_radio;
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rt2x00dev->rfkill = rfkill;
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INIT_DELAYED_WORK(&rt2x00dev->rfkill_work, rt2x00lib_rfkill_poll);
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return 0;
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}
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void rt2x00lib_free_rfkill(struct rt2x00_dev *rt2x00dev)
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{
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if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
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return;
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rfkill_free(rt2x00dev->rfkill);
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}
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