This adds full support for the RFKILL button and the RFKILL LED trigger.
This is a port to b43legacy of a patch by Michael Buesch <mb@bu3sch.de>
for b43.
Signed-off-by: Larry Finger<Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
# LED support
config B43LEGACY_LEDS
bool
- depends on MAC80211_LEDS
+ depends on B43LEGACY && MAC80211_LEDS
+ default y
+
+# RFKILL support
+config B43LEGACY_RFKILL
+ bool
+ depends on B43LEGACY && RFKILL
default y
config B43LEGACY_DEBUG
b43legacy-y += radio.o
b43legacy-y += sysfs.o
b43legacy-y += xmit.o
+# b43 RFKILL button support
+b43legacy-$(CONFIG_B43LEGACY_RFKILL) += rfkill.o
# b43legacy LED support
b43legacy-$(CONFIG_B43LEGACY_LEDS) += leds.o
# b43legacy debugging
#include "debugfs.h"
#include "leds.h"
+#include "rfkill.h"
#include "phy.h"
u8 rng_initialized;
char rng_name[30 + 1];
+ /* The RF-kill button */
+ struct b43legacy_rfkill rfkill;
+
/* List of all wireless devices on this chip */
struct list_head devlist;
u8 nr_devs;
struct b43legacy_led led_tx;
struct b43legacy_led led_rx;
struct b43legacy_led led_assoc;
+ struct b43legacy_led led_radio;
/* Reason code of the last interrupt. */
u32 irq_reason;
ieee80211_get_rx_led_name(hw),
led_index, activelow);
break;
- /*FIXME: We need another trigger for the "radio-on" LEDs below.
- * Wiggle that somehow into the rfkill subsystem. */
case B43legacy_LED_RADIO_ALL:
case B43legacy_LED_RADIO_A:
case B43legacy_LED_RADIO_B:
case B43legacy_LED_MODE_BG:
+ snprintf(name, sizeof(name),
+ "b43legacy-%s:radio", wiphy_name(hw->wiphy));
+ b43legacy_register_led(dev, &dev->led_radio, name,
+ b43legacy_rfkill_led_name(dev),
+ led_index, activelow);
+ break;
case B43legacy_LED_WEIRD:
case B43legacy_LED_ASSOC:
snprintf(name, sizeof(name),
/* This is the opposite of b43legacy_chip_init() */
static void b43legacy_chip_exit(struct b43legacy_wldev *dev)
{
- b43legacy_radio_turn_off(dev);
+ b43legacy_radio_turn_off(dev, 1);
b43legacy_leds_exit(dev);
b43legacy_gpio_cleanup(dev);
/* firmware is released later */
return err;
err_radio_off:
- b43legacy_radio_turn_off(dev);
+ b43legacy_radio_turn_off(dev, 1);
err_leds_exit:
b43legacy_leds_exit(dev);
b43legacy_gpio_cleanup(dev);
radio_hw_enable = b43legacy_is_hw_radio_enabled(dev);
if (unlikely(dev->radio_hw_enable != radio_hw_enable)) {
dev->radio_hw_enable = radio_hw_enable;
- b43legacyinfo(dev->wl, "Radio hardware status changed to %s\n",
- (radio_hw_enable) ? "enabled" : "disabled");
+ b43legacy_rfkill_toggled(dev, radio_hw_enable);
}
}
" physically off. Press the"
" button to turn it on.\n");
} else {
- b43legacy_radio_turn_off(dev);
+ b43legacy_radio_turn_off(dev, 0);
b43legacyinfo(dev->wl, "Radio turned off by"
" software\n");
}
cancel_work_sync(&dev->restart_work);
mutex_lock(&wl->mutex);
+ mutex_unlock(&dev->wl->mutex);
+ b43legacy_rfkill_exit(dev);
+ mutex_lock(&dev->wl->mutex);
+
b43legacy_rng_exit(dev->wl);
b43legacy_pio_free(dev);
b43legacy_dma_free(dev);
b43legacy_chip_exit(dev);
- b43legacy_radio_turn_off(dev);
+ b43legacy_radio_turn_off(dev, 1);
b43legacy_switch_analog(dev, 0);
if (phy->dyn_tssi_tbl)
kfree(phy->tssi2dbm);
memset(wl->mac_addr, 0, ETH_ALEN);
b43legacy_upload_card_macaddress(dev);
b43legacy_security_init(dev);
+ b43legacy_rfkill_init(dev);
b43legacy_rng_init(wl);
b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
wl->current_dev = dev;
INIT_WORK(&dev->restart_work, b43legacy_chip_reset);
- b43legacy_radio_turn_off(dev);
+ b43legacy_radio_turn_off(dev, 1);
b43legacy_switch_analog(dev, 0);
ssb_device_disable(dev->dev, 0);
ssb_bus_may_powerdown(bus);
phy->radio_on = 1;
}
-void b43legacy_radio_turn_off(struct b43legacy_wldev *dev)
+void b43legacy_radio_turn_off(struct b43legacy_wldev *dev, bool force)
{
struct b43legacy_phy *phy = &dev->phy;
+ if (!phy->radio_on && !force)
+ return;
+
if (phy->type == B43legacy_PHYTYPE_G && dev->dev->id.revision >= 5) {
u16 rfover, rfoverval;
rfover = b43legacy_phy_read(dev, B43legacy_PHY_RFOVER);
rfoverval = b43legacy_phy_read(dev, B43legacy_PHY_RFOVERVAL);
- phy->radio_off_context.rfover = rfover;
- phy->radio_off_context.rfoverval = rfoverval;
- phy->radio_off_context.valid = 1;
+ if (!force) {
+ phy->radio_off_context.rfover = rfover;
+ phy->radio_off_context.rfoverval = rfoverval;
+ phy->radio_off_context.valid = 1;
+ }
b43legacy_phy_write(dev, B43legacy_PHY_RFOVER, rfover | 0x008C);
b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
rfoverval & 0xFF73);
u16 b43legacy_radio_init2050(struct b43legacy_wldev *dev);
void b43legacy_radio_turn_on(struct b43legacy_wldev *dev);
-void b43legacy_radio_turn_off(struct b43legacy_wldev *dev);
+void b43legacy_radio_turn_off(struct b43legacy_wldev *dev, bool force);
int b43legacy_radio_selectchannel(struct b43legacy_wldev *dev, u8 channel,
int synthetic_pu_workaround);
--- /dev/null
+/*
+
+ 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;
+}
--- /dev/null
+#ifndef B43legacy_RFKILL_H_
+#define B43legacy_RFKILL_H_
+
+struct b43legacy_wldev;
+
+#ifdef CONFIG_B43LEGACY_RFKILL
+
+#include <linux/rfkill.h>
+#include <linux/workqueue.h>
+
+
+struct b43legacy_rfkill {
+ /* The RFKILL subsystem data structure */
+ struct rfkill *rfkill;
+ /* The unique name of this rfkill switch */
+ char name[32];
+ /* Workqueue for asynchronous notification. */
+ struct work_struct notify_work;
+};
+
+void b43legacy_rfkill_init(struct b43legacy_wldev *dev);
+void b43legacy_rfkill_exit(struct b43legacy_wldev *dev);
+void b43legacy_rfkill_toggled(struct b43legacy_wldev *dev, bool on);
+char *b43legacy_rfkill_led_name(struct b43legacy_wldev *dev);
+
+
+#else /* CONFIG_B43LEGACY_RFKILL */
+/* No RFKILL support. */
+
+struct b43legacy_rfkill {
+ /* empty */
+};
+
+static inline void b43legacy_rfkill_init(struct b43legacy_wldev *dev)
+{
+}
+static inline void b43legacy_rfkill_exit(struct b43legacy_wldev *dev)
+{
+}
+static inline void b43legacy_rfkill_toggled(struct b43legacy_wldev *dev,
+ bool on)
+{
+}
+static inline char *b43legacy_rfkill_led_name(struct b43legacy_wldev *dev)
+{
+ return NULL;
+}
+
+#endif /* CONFIG_B43LEGACY_RFKILL */
+
+#endif /* B43legacy_RFKILL_H_ */
projects / platform / kernel / linux-3.10.git / commitdiff