From c43c4da559585d9a0e6d833aff5e4c99d01f1300 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Thu, 26 Jul 2007 20:00:24 +0000
Subject: Add rt2x00-mac80211 snapshot (#1916)

SVN-Revision: 8184
---
 package/rt2x00/src/rt2x00rfkill.c | 129 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 package/rt2x00/src/rt2x00rfkill.c

(limited to 'package/rt2x00/src/rt2x00rfkill.c')

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);
+}
-- 
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