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-rw-r--r--package/rt2x00/src/rt2x00rfkill.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/package/rt2x00/src/rt2x00rfkill.c b/package/rt2x00/src/rt2x00rfkill.c
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--- /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);
+}