Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25: (1470 commits)
  [IPV6] ADDRLABEL: Fix double free on label deletion.
  [PPP]: Sparse warning fixes.
  [IPV4] fib_trie: remove unneeded NULL check
  [IPV4] fib_trie: More whitespace cleanup.
  [NET_SCHED]: Use nla_policy for attribute validation in ematches
  [NET_SCHED]: Use nla_policy for attribute validation in actions
  [NET_SCHED]: Use nla_policy for attribute validation in classifiers
  [NET_SCHED]: Use nla_policy for attribute validation in packet schedulers
  [NET_SCHED]: sch_api: introduce constant for rate table size
  [NET_SCHED]: Use typeful attribute parsing helpers
  [NET_SCHED]: Use typeful attribute construction helpers
  [NET_SCHED]: Use NLA_PUT_STRING for string dumping
  [NET_SCHED]: Use nla_nest_start/nla_nest_end
  [NET_SCHED]: Propagate nla_parse return value
  [NET_SCHED]: act_api: use PTR_ERR in tcf_action_init/tcf_action_get
  [NET_SCHED]: act_api: use nlmsg_parse
  [NET_SCHED]: act_api: fix netlink API conversion bug
  [NET_SCHED]: sch_netem: use nla_parse_nested_compat
  [NET_SCHED]: sch_atm: fix format string warning
  [NETNS]: Add namespace for ICMP replying code.
  ...

1 files changed, 205 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43legacy/rfkill.c b/drivers/net/wireless/b43legacy/rfkill.c
new file mode 100644
index 000000000000..d178dfbb1c9f
--- /dev/null
+++ b/drivers/net/wireless/b43legacy/rfkill.c
@@ -0,0 +1,205 @@
+/*
+
+  Broadcom B43 wireless driver
+  RFKILL support
+
+  Copyright (c) 2007 Michael Buesch <mb@bu3sch.de>
+
+  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; see the file COPYING.  If not, write to
+  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+
+*/
+
+#include "rfkill.h"
+#include "radio.h"
+#include "b43legacy.h"
+
+#include <linux/kmod.h>
+
+
+/* Returns TRUE, if the radio is enabled in hardware. */
+static bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev)
+{
+	if (dev->phy.rev >= 3) {
+		if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI)
+		      & B43legacy_MMIO_RADIO_HWENABLED_HI_MASK))
+			return 1;
+	} else {
+		if (b43legacy_read16(dev, B43legacy_MMIO_RADIO_HWENABLED_LO)
+		    & B43legacy_MMIO_RADIO_HWENABLED_LO_MASK)
+			return 1;
+	}
+	return 0;
+}
+
+/* The poll callback for the hardware button. */
+static void b43legacy_rfkill_poll(struct input_polled_dev *poll_dev)
+{
+	struct b43legacy_wldev *dev = poll_dev->private;
+	struct b43legacy_wl *wl = dev->wl;
+	bool enabled;
+	bool report_change = 0;
+
+	mutex_lock(&wl->mutex);
+	if (unlikely(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)) {
+		mutex_unlock(&wl->mutex);
+		return;
+	}
+	enabled = b43legacy_is_hw_radio_enabled(dev);
+	if (unlikely(enabled != dev->radio_hw_enable)) {
+		dev->radio_hw_enable = enabled;
+		report_change = 1;
+		b43legacyinfo(wl, "Radio hardware status changed to %s\n",
+			enabled ? "ENABLED" : "DISABLED");
+	}
+	mutex_unlock(&wl->mutex);
+
+	/* send the radio switch event to the system - note both a key press
+	 * and a release are required */
+	if (unlikely(report_change)) {
+		input_report_key(poll_dev->input, KEY_WLAN, 1);
+		input_report_key(poll_dev->input, KEY_WLAN, 0);
+	}
+}
+
+/* Called when the RFKILL toggled in software.
+ * This is called without locking. */
+static int b43legacy_rfkill_soft_toggle(void *data, enum rfkill_state state)
+{
+	struct b43legacy_wldev *dev = data;
+	struct b43legacy_wl *wl = dev->wl;
+	int err = -EBUSY;
+
+	if (!wl->rfkill.registered)
+		return 0;
+
+	mutex_lock(&wl->mutex);
+	if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)
+		goto out_unlock;
+	err = 0;
+	switch (state) {
+	case RFKILL_STATE_ON:
+		if (!dev->radio_hw_enable) {
+			/* No luck. We can't toggle the hardware RF-kill
+			 * button from software. */
+			err = -EBUSY;
+			goto out_unlock;
+		}
+		if (!dev->phy.radio_on)
+			b43legacy_radio_turn_on(dev);
+		break;
+	case RFKILL_STATE_OFF:
+		if (dev->phy.radio_on)
+			b43legacy_radio_turn_off(dev, 0);
+		break;
+	}
+
+out_unlock:
+	mutex_unlock(&wl->mutex);
+
+	return err;
+}
+
+char *b43legacy_rfkill_led_name(struct b43legacy_wldev *dev)
+{
+	struct b43legacy_rfkill *rfk = &(dev->wl->rfkill);
+
+	if (!rfk->registered)
+		return NULL;
+	return rfkill_get_led_name(rfk->rfkill);
+}
+
+void b43legacy_rfkill_init(struct b43legacy_wldev *dev)
+{
+	struct b43legacy_wl *wl = dev->wl;
+	struct b43legacy_rfkill *rfk = &(wl->rfkill);
+	int err;
+
+	rfk->registered = 0;
+
+	rfk->rfkill = rfkill_allocate(dev->dev->dev, RFKILL_TYPE_WLAN);
+	if (!rfk->rfkill)
+		goto out_error;
+	snprintf(rfk->name, sizeof(rfk->name),
+		 "b43legacy-%s", wiphy_name(wl->hw->wiphy));
+	rfk->rfkill->name = rfk->name;
+	rfk->rfkill->state = RFKILL_STATE_ON;
+	rfk->rfkill->data = dev;
+	rfk->rfkill->toggle_radio = b43legacy_rfkill_soft_toggle;
+	rfk->rfkill->user_claim_unsupported = 1;
+
+	rfk->poll_dev = input_allocate_polled_device();
+	if (!rfk->poll_dev) {
+		rfkill_free(rfk->rfkill);
+		goto err_freed_rfk;
+	}
+
+	rfk->poll_dev->private = dev;
+	rfk->poll_dev->poll = b43legacy_rfkill_poll;
+	rfk->poll_dev->poll_interval = 1000; /* msecs */
+
+	rfk->poll_dev->input->name = rfk->name;
+	rfk->poll_dev->input->id.bustype = BUS_HOST;
+	rfk->poll_dev->input->id.vendor = dev->dev->bus->boardinfo.vendor;
+	rfk->poll_dev->input->evbit[0] = BIT(EV_KEY);
+	set_bit(KEY_WLAN, rfk->poll_dev->input->keybit);
+
+	err = rfkill_register(rfk->rfkill);
+	if (err)
+		goto err_free_polldev;
+
+#ifdef CONFIG_RFKILL_INPUT_MODULE
+	/* B43legacy RF-kill isn't useful without the rfkill-input subsystem.
+	 * Try to load the module. */
+	err = request_module("rfkill-input");
+	if (err)
+		b43legacywarn(wl, "Failed to load the rfkill-input module."
+			"The built-in radio LED will not work.\n");
+#endif /* CONFIG_RFKILL_INPUT */
+
+	err = input_register_polled_device(rfk->poll_dev);
+	if (err)
+		goto err_unreg_rfk;
+
+	rfk->registered = 1;
+
+	return;
+err_unreg_rfk:
+	rfkill_unregister(rfk->rfkill);
+err_free_polldev:
+	input_free_polled_device(rfk->poll_dev);
+	rfk->poll_dev = NULL;
+err_freed_rfk:
+	rfk->rfkill = NULL;
+out_error:
+	rfk->registered = 0;
+	b43legacywarn(wl, "RF-kill button init failed\n");
+}
+
+void b43legacy_rfkill_exit(struct b43legacy_wldev *dev)
+{
+	struct b43legacy_rfkill *rfk = &(dev->wl->rfkill);
+
+	if (!rfk->registered)
+		return;
+	rfk->registered = 0;
+
+	input_unregister_polled_device(rfk->poll_dev);
+	rfkill_unregister(rfk->rfkill);
+	input_free_polled_device(rfk->poll_dev);
+	rfk->poll_dev = NULL;
+	rfk->rfkill = NULL;
+}
+