50db7875d9
With the new rfkill interface there is no longer a need for the input_polldev. Create a delayed_work structure which we can put on the mac80211 workqueue and poll the hardware every 1000ms. v2: Decrease poll frequency from 100ms to 1000ms Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
161 lines
4.4 KiB
C
161 lines
4.4 KiB
C
/*
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Copyright (C) 2004 - 2008 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: rt2x00rfkill
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Abstract: rt2x00 rfkill routines.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/rfkill.h>
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#include "rt2x00.h"
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#include "rt2x00lib.h"
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static int rt2x00rfkill_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 there are enabled interfaces.
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*/
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if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
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return 0;
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if (state == RFKILL_STATE_UNBLOCKED) {
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INFO(rt2x00dev, "Hardware button pressed, enabling radio.\n");
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__clear_bit(DEVICE_DISABLED_RADIO_HW, &rt2x00dev->flags);
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retval = rt2x00lib_enable_radio(rt2x00dev);
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} else if (state == RFKILL_STATE_SOFT_BLOCKED) {
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INFO(rt2x00dev, "Hardware button pressed, disabling radio.\n");
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__set_bit(DEVICE_DISABLED_RADIO_HW, &rt2x00dev->flags);
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rt2x00lib_disable_radio(rt2x00dev);
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} else {
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WARNING(rt2x00dev, "Received unexpected rfkill state %d.\n",
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state);
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}
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return retval;
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}
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static int rt2x00rfkill_get_state(void *data, enum rfkill_state *state)
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{
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struct rt2x00_dev *rt2x00dev = data;
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*state = rt2x00dev->rfkill->state;
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return 0;
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}
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static void rt2x00rfkill_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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int state;
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if (!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
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return;
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/*
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* rfkill_poll reports 1 when the key has been pressed and the
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* radio should be blocked.
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*/
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state = !rt2x00dev->ops->lib->rfkill_poll(rt2x00dev) ?
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RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
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rfkill_force_state(rt2x00dev->rfkill, state);
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queue_delayed_work(rt2x00dev->hw->workqueue,
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&rt2x00dev->rfkill_work, RFKILL_POLL_INTERVAL);
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}
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void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
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{
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if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
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!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
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return;
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if (rfkill_register(rt2x00dev->rfkill)) {
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ERROR(rt2x00dev, "Failed to register rfkill handler.\n");
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return;
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}
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__set_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state);
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/*
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* Force initial poll which will detect the initial device state,
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* and correctly sends the signal to the rfkill layer about this
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* state.
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*/
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rt2x00rfkill_poll(&rt2x00dev->rfkill_work.work);
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}
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void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
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{
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if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
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!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
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return;
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cancel_delayed_work_sync(&rt2x00dev->rfkill_work);
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rfkill_unregister(rt2x00dev->rfkill);
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__clear_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state);
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}
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void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
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{
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if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
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return;
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rt2x00dev->rfkill =
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rfkill_allocate(wiphy_dev(rt2x00dev->hw->wiphy), RFKILL_TYPE_WLAN);
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if (!rt2x00dev->rfkill) {
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ERROR(rt2x00dev, "Failed to allocate rfkill handler.\n");
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return;
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}
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rt2x00dev->rfkill->name = rt2x00dev->ops->name;
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rt2x00dev->rfkill->data = rt2x00dev;
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rt2x00dev->rfkill->state = -1;
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rt2x00dev->rfkill->toggle_radio = rt2x00rfkill_toggle_radio;
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rt2x00dev->rfkill->get_state = rt2x00rfkill_get_state;
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INIT_DELAYED_WORK(&rt2x00dev->rfkill_work, rt2x00rfkill_poll);
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return;
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}
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void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev)
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{
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if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
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!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
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return;
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cancel_delayed_work_sync(&rt2x00dev->rfkill_work);
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rfkill_free(rt2x00dev->rfkill);
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rt2x00dev->rfkill = NULL;
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}
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