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