diff options
Diffstat (limited to 'package/rt2x00/src/rt2x00rfkill.c')
| -rw-r--r-- | package/rt2x00/src/rt2x00rfkill.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/package/rt2x00/src/rt2x00rfkill.c b/package/rt2x00/src/rt2x00rfkill.c new file mode 100644 index 0000000000..63062f1ec4 --- /dev/null +++ b/package/rt2x00/src/rt2x00rfkill.c @@ -0,0 +1,129 @@ +/* + 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); +} |