diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/b43legacy/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/b43legacy.h | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/leds.c | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/main.c | 18 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/radio.c | 13 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/radio.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/rfkill.c | 158 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/rfkill.h | 51 |
9 files changed, 250 insertions, 15 deletions
diff --git a/drivers/net/wireless/b43legacy/Kconfig b/drivers/net/wireless/b43legacy/Kconfig index 1bf777578e5..68e05f06b33 100644 --- a/drivers/net/wireless/b43legacy/Kconfig +++ b/drivers/net/wireless/b43legacy/Kconfig @@ -37,7 +37,13 @@ config B43LEGACY_PCICORE_AUTOSELECT # 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 diff --git a/drivers/net/wireless/b43legacy/Makefile b/drivers/net/wireless/b43legacy/Makefile index abaa404bb14..80cdb73bd14 100644 --- a/drivers/net/wireless/b43legacy/Makefile +++ b/drivers/net/wireless/b43legacy/Makefile @@ -5,6 +5,8 @@ b43legacy-y += phy.o 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 diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h index 41243ba821a..fe2af06f559 100644 --- a/drivers/net/wireless/b43legacy/b43legacy.h +++ b/drivers/net/wireless/b43legacy/b43legacy.h @@ -19,6 +19,7 @@ #include "debugfs.h" #include "leds.h" +#include "rfkill.h" #include "phy.h" @@ -592,6 +593,9 @@ struct b43legacy_wl { 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; @@ -667,6 +671,7 @@ struct b43legacy_wldev { 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; diff --git a/drivers/net/wireless/b43legacy/leds.c b/drivers/net/wireless/b43legacy/leds.c index 1e30919582c..9ef284fda80 100644 --- a/drivers/net/wireless/b43legacy/leds.c +++ b/drivers/net/wireless/b43legacy/leds.c @@ -156,12 +156,16 @@ static void b43legacy_map_led(struct b43legacy_wldev *dev, 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), diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 43edd08297a..04bc3f6c5e6 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -1993,7 +1993,7 @@ static bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev) /* 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 */ @@ -2106,7 +2106,7 @@ out: 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); @@ -2154,8 +2154,7 @@ static void b43legacy_periodic_every1sec(struct b43legacy_wldev *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); } } @@ -2647,7 +2646,7 @@ static int b43legacy_dev_config(struct ieee80211_hw *hw, " 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"); } @@ -3034,11 +3033,15 @@ static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev) 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); @@ -3206,6 +3209,7 @@ static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev) 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); @@ -3527,7 +3531,7 @@ static int b43legacy_wireless_core_attach(struct b43legacy_wldev *dev) 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); diff --git a/drivers/net/wireless/b43legacy/radio.c b/drivers/net/wireless/b43legacy/radio.c index 34cb0d801ce..1dc351ca883 100644 --- a/drivers/net/wireless/b43legacy/radio.c +++ b/drivers/net/wireless/b43legacy/radio.c @@ -2115,18 +2115,23 @@ void b43legacy_radio_turn_on(struct b43legacy_wldev *dev) 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); diff --git a/drivers/net/wireless/b43legacy/radio.h b/drivers/net/wireless/b43legacy/radio.h index 6c6a203439e..ad90d9c0346 100644 --- a/drivers/net/wireless/b43legacy/radio.h +++ b/drivers/net/wireless/b43legacy/radio.h @@ -61,7 +61,7 @@ void b43legacy_radio_write16(struct b43legacy_wldev *dev, u16 offset, u16 val); 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); diff --git a/drivers/net/wireless/b43legacy/rfkill.c b/drivers/net/wireless/b43legacy/rfkill.c new file mode 100644 index 00000000000..db629264205 --- /dev/null +++ b/drivers/net/wireless/b43legacy/rfkill.c @@ -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; +} diff --git a/drivers/net/wireless/b43legacy/rfkill.h b/drivers/net/wireless/b43legacy/rfkill.h new file mode 100644 index 00000000000..388ee0b855a --- /dev/null +++ b/drivers/net/wireless/b43legacy/rfkill.h @@ -0,0 +1,51 @@ +#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_ */ |