Hi,
I have been quite busy lately, hence the reason for this late continuance
of the Hardware button support for Wireless cards discussion.
I have CC'ed the people who discussed this in earlier threads.
With the suggestions made by Vojtech Pavlik I have created the rfkill driver,
for which I would like to know if this is the acceptable approach.
This rfkill driver looks a bit like the previous version I had send,
but this version does pay attention if the input device has been opened
and if an event should be send to userspace in that case.
I was however unsure about where the KEY_RFKILL should be added
in linux/input.h. I again placed this driver in drivers/input/misc but perhaps
this should go into drivers/net instead?
I hope I am on the right track. :)
Signed-off-by Ivo van Doorn [EMAIL PROTECTED]
---
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 4bad588..837021a 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -79,4 +79,19 @@ config HP_SDC_RTC
Say Y here if you want to support the built-in real time clock
of the HP SDC controller.
+config RFKILL
+ tristate RF button support
+ help
+ If you say yes here, the rfkill driver will be build
+ which allowed network devices to register their hardware
+ RF button which controls the radio state. This driver
+ will then create an input device for it.
+
+ When the input device is not used, the rfkill driver
+ will make sure that when the RF button is pressed the radio
+ is enabled or disabled accordingly. When the input device
+ has been opened by the user this radio control will be left
+ to the user, and rfkill will only send the RF button status
+ change to userspace.
+
endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 415c491..e788a1b 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -11,3 +11,4 @@ obj-$(CONFIG_INPUT_UINPUT)+= uinput.o
obj-$(CONFIG_INPUT_WISTRON_BTNS)+= wistron_btns.o
obj-$(CONFIG_HP_SDC_RTC)+= hp_sdc_rtc.o
obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
+obj-$(CONFIG_RFKILL) += rfkill.o
diff --git a/drivers/input/misc/rfkill.c b/drivers/input/misc/rfkill.c
new file mode 100644
index 000..da576e5
--- /dev/null
+++ b/drivers/input/misc/rfkill.c
@@ -0,0 +1,209 @@
+/*
+ Copyright (C) 2006 Ivo van Doorn
+
+ 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.
+ */
+
+#include linux/kernel.h
+#include linux/module.h
+#include linux/init.h
+#include linux/timer.h
+#include linux/rfkill.h
+
+#include asm/atomic.h
+
+MODULE_AUTHOR(Ivo van Doorn [EMAIL PROTECTED]);
+MODULE_VERSION(1.0);
+MODULE_DESCRIPTION(RF button support);
+MODULE_LICENSE(GPL);
+
+/*
+ * List of all registered buttons.
+ */
+static struct list_head rfkill_list;
+static spinlock_t rfkill_list_lock;
+
+/*
+ * Polling timer, poll_delay and use count.
+ */
+static struct timer_list poll_timer;
+static atomic_t poll_required;
+
+static void rfkill_toggle_radio(int new_status)
+{
+ struct list_head *entry;
+ struct rfkill *rfkill;
+
+ /*
+* Go through the list of all radio's to toggle the radio state.
+*/
+ list_for_each(entry, rfkill_list) {
+ rfkill = list_entry(entry, struct rfkill, entry);
+
+ rfkill-current_status = new_status;
+
+ /*
+ * If the input_device has been opened
+ * all radio events should be send to user space.
+ */
+ if (rfkill-input_dev-users) {
+ input_report_key(rfkill-input_dev,
+ KEY_RFKILL, new_status);
+ input_sync(rfkill-input_dev);
+ }
+
+ /*
+ * If the hardware does not toggle the radio status automaticly,
+ * we should take care of it.
+ */
+ if (new_status rfkill-enable_radio)
+ rfkill-enable_radio(rfkill-data);
+ else if (!new_status rfkill-disable_radio)
+
