|
|
@@ -0,0 +1,158 @@
|
|
|
+/*
|
|
|
+
|
|
|
+ Broadcom B43legacy 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"
|
|
|
+
|
|
|
+
|
|
|
+static void b43legacy_notify_rfkill_press(struct work_struct *work)
|
|
|
+{
|
|
|
+ struct b43legacy_rfkill *rfk = container_of(work,
|
|
|
+ struct b43legacy_rfkill,
|
|
|
+ notify_work);
|
|
|
+ struct b43legacy_wl *wl = container_of(rfk, struct b43legacy_wl,
|
|
|
+ rfkill);
|
|
|
+ struct b43legacy_wldev *dev;
|
|
|
+ enum rfkill_state state;
|
|
|
+
|
|
|
+ mutex_lock(&wl->mutex);
|
|
|
+ dev = wl->current_dev;
|
|
|
+ if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
|
|
|
+ mutex_unlock(&wl->mutex);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (dev->radio_hw_enable)
|
|
|
+ state = RFKILL_STATE_ON;
|
|
|
+ else
|
|
|
+ state = RFKILL_STATE_OFF;
|
|
|
+ b43legacyinfo(wl, "Radio hardware status changed to %s\n",
|
|
|
+ dev->radio_hw_enable ? "ENABLED" : "DISABLED");
|
|
|
+ mutex_unlock(&wl->mutex);
|
|
|
+
|
|
|
+ if (rfk->rfkill) {
|
|
|
+ /* Be careful. This calls back into the software toggle
|
|
|
+ * routines. So we must unlock before calling. */
|
|
|
+ rfkill_switch_all(rfk->rfkill->type, state);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/* Called when the RFKILL toggled in hardware.
|
|
|
+ * This is called with the mutex locked. */
|
|
|
+void b43legacy_rfkill_toggled(struct b43legacy_wldev *dev, bool on)
|
|
|
+{
|
|
|
+ struct b43legacy_wl *wl = dev->wl;
|
|
|
+
|
|
|
+ B43legacy_WARN_ON(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED);
|
|
|
+ /* Update the RF status asynchronously, as rfkill will
|
|
|
+ * call back into the software toggle handler.
|
|
|
+ * This would deadlock if done synchronously. */
|
|
|
+ queue_work(wl->hw->workqueue, &wl->rfkill.notify_work);
|
|
|
+}
|
|
|
+
|
|
|
+/* 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 = 0;
|
|
|
+
|
|
|
+ mutex_lock(&wl->mutex);
|
|
|
+ if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)
|
|
|
+ goto out_unlock;
|
|
|
+
|
|
|
+ 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_wl *wl = dev->wl;
|
|
|
+
|
|
|
+ if (!wl->rfkill.rfkill)
|
|
|
+ return NULL;
|
|
|
+ return rfkill_get_led_name(wl->rfkill.rfkill);
|
|
|
+}
|
|
|
+
|
|
|
+void b43legacy_rfkill_init(struct b43legacy_wldev *dev)
|
|
|
+{
|
|
|
+ struct b43legacy_wl *wl = dev->wl;
|
|
|
+ struct b43legacy_rfkill *rfk = &(wl->rfkill);
|
|
|
+ int err;
|
|
|
+
|
|
|
+ snprintf(rfk->name, sizeof(rfk->name),
|
|
|
+ "b43legacy-%s", wiphy_name(wl->hw->wiphy));
|
|
|
+ rfk->rfkill = rfkill_allocate(dev->dev->dev, RFKILL_TYPE_WLAN);
|
|
|
+ if (!rfk->rfkill)
|
|
|
+ goto error;
|
|
|
+ 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;
|
|
|
+
|
|
|
+ INIT_WORK(&rfk->notify_work, b43legacy_notify_rfkill_press);
|
|
|
+
|
|
|
+ err = rfkill_register(rfk->rfkill);
|
|
|
+ if (err)
|
|
|
+ goto error;
|
|
|
+
|
|
|
+ return;
|
|
|
+error:
|
|
|
+ b43legacywarn(dev->wl, "Failed to initialize the RF-kill button\n");
|
|
|
+ rfkill_free(rfk->rfkill);
|
|
|
+ rfk->rfkill = NULL;
|
|
|
+}
|
|
|
+
|
|
|
+void b43legacy_rfkill_exit(struct b43legacy_wldev *dev)
|
|
|
+{
|
|
|
+ struct b43legacy_rfkill *rfk = &(dev->wl->rfkill);
|
|
|
+
|
|
|
+ if (!rfk->rfkill)
|
|
|
+ return;
|
|
|
+ cancel_work_sync(&rfk->notify_work);
|
|
|
+ rfkill_unregister(rfk->rfkill);
|
|
|
+ rfkill_free(rfk->rfkill);
|
|
|
+ rfk->rfkill = NULL;
|
|
|
+}
|
Larry Finger