diff options
Diffstat (limited to 'drivers/net/wireless/b43')
| -rw-r--r-- | drivers/net/wireless/b43/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/b43.h | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/leds.c | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 18 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/phy.c | 13 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/phy.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/rfkill.c | 155 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/rfkill.h | 49 |
9 files changed, 245 insertions, 15 deletions
diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig index 1575654556b0..968f0611ed49 100644 --- a/drivers/net/wireless/b43/Kconfig +++ b/drivers/net/wireless/b43/Kconfig @@ -64,7 +64,13 @@ config B43_PCMCIA # LED support config B43_LEDS bool - depends on MAC80211_LEDS + depends on B43 && MAC80211_LEDS + default y + +# RFKILL support +config B43_RFKILL + bool + depends on B43 && RFKILL default y config B43_DEBUG diff --git a/drivers/net/wireless/b43/Makefile b/drivers/net/wireless/b43/Makefile index e6331414c4ca..485e59e2dfab 100644 --- a/drivers/net/wireless/b43/Makefile +++ b/drivers/net/wireless/b43/Makefile @@ -5,6 +5,8 @@ b43-y += phy.o b43-y += sysfs.o b43-y += xmit.o b43-y += lo.o +# b43 RFKILL button support +b43-$(CONFIG_B43_RFKILL) += rfkill.o # b43 LED support b43-$(CONFIG_B43_LEDS) += leds.o # b43 PCMCIA support diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index 6e6b59227e16..a28ad230d63e 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -10,6 +10,7 @@ #include "debugfs.h" #include "leds.h" +#include "rfkill.h" #include "lo.h" #include "phy.h" @@ -625,6 +626,9 @@ struct b43_wl { u8 rng_initialized; char rng_name[30 + 1]; + /* The RF-kill button */ + struct b43_rfkill rfkill; + /* List of all wireless devices on this chip */ struct list_head devlist; u8 nr_devs; @@ -700,6 +704,7 @@ struct b43_wldev { struct b43_led led_tx; struct b43_led led_rx; struct b43_led led_assoc; + struct b43_led led_radio; /* Reason code of the last interrupt. */ u32 irq_reason; diff --git a/drivers/net/wireless/b43/leds.c b/drivers/net/wireless/b43/leds.c index ddab856f1140..19e588582c7c 100644 --- a/drivers/net/wireless/b43/leds.c +++ b/drivers/net/wireless/b43/leds.c @@ -154,12 +154,16 @@ static void b43_map_led(struct b43_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 B43_LED_RADIO_ALL: case B43_LED_RADIO_A: case B43_LED_RADIO_B: case B43_LED_MODE_BG: + snprintf(name, sizeof(name), + "b43-%s:radio", wiphy_name(hw->wiphy)); + b43_register_led(dev, &dev->led_radio, name, + b43_rfkill_led_name(dev), + led_index, activelow); + break; case B43_LED_WEIRD: case B43_LED_ASSOC: snprintf(name, sizeof(name), diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 2b81bd6165d8..a9f7148493f7 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -2161,7 +2161,7 @@ static bool b43_is_hw_radio_enabled(struct b43_wldev *dev) /* This is the opposite of b43_chip_init() */ static void b43_chip_exit(struct b43_wldev *dev) { - b43_radio_turn_off(dev); + b43_radio_turn_off(dev, 1); b43_leds_exit(dev); b43_gpio_cleanup(dev); /* firmware is released later */ @@ -2269,7 +2269,7 @@ out: return err; err_radio_off: - b43_radio_turn_off(dev); + b43_radio_turn_off(dev, 1); err_leds_exit: b43_leds_exit(dev); b43_gpio_cleanup(dev); @@ -2358,8 +2358,7 @@ static void b43_periodic_every1sec(struct b43_wldev *dev) radio_hw_enable = b43_is_hw_radio_enabled(dev); if (unlikely(dev->radio_hw_enable != radio_hw_enable)) { dev->radio_hw_enable = radio_hw_enable; - b43info(dev->wl, "Radio hardware status changed to %s\n", - radio_hw_enable ? "ENABLED" : "DISABLED"); + b43_rfkill_toggled(dev, radio_hw_enable); } } @@ -2850,7 +2849,7 @@ static int b43_dev_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) "Press the button to turn it on.\n"); } } else { - b43_radio_turn_off(dev); + b43_radio_turn_off(dev, 0); b43info(dev->wl, "Radio turned off by software\n"); } } @@ -3330,11 +3329,15 @@ static void b43_wireless_core_exit(struct b43_wldev *dev) return; b43_set_status(dev, B43_STAT_UNINIT); + mutex_unlock(&dev->wl->mutex); + b43_rfkill_exit(dev); + mutex_lock(&dev->wl->mutex); + b43_rng_exit(dev->wl); b43_pio_free(dev); b43_dma_free(dev); b43_chip_exit(dev); - b43_radio_turn_off(dev); + b43_radio_turn_off(dev, 1); b43_switch_analog(dev, 0); if (phy->dyn_tssi_tbl) kfree(phy->tssi2dbm); @@ -3458,6 +3461,7 @@ static int b43_wireless_core_init(struct b43_wldev *dev) memset(wl->mac_addr, 0, ETH_ALEN); b43_upload_card_macaddress(dev); b43_security_init(dev); + b43_rfkill_init(dev); b43_rng_init(wl); b43_set_status(dev, B43_STAT_INITIALIZED); @@ -3802,7 +3806,7 @@ static int b43_wireless_core_attach(struct b43_wldev *dev) wl->current_dev = dev; INIT_WORK(&dev->restart_work, b43_chip_reset); - b43_radio_turn_off(dev); + b43_radio_turn_off(dev, 1); b43_switch_analog(dev, 0); ssb_device_disable(dev->dev, 0); ssb_bus_may_powerdown(bus); diff --git a/drivers/net/wireless/b43/phy.c b/drivers/net/wireless/b43/phy.c index 354d18238752..5f7ffa0a76c0 100644 --- a/drivers/net/wireless/b43/phy.c +++ b/drivers/net/wireless/b43/phy.c @@ -4349,10 +4349,13 @@ void b43_radio_turn_on(struct b43_wldev *dev) phy->radio_on = 1; } -void b43_radio_turn_off(struct b43_wldev *dev) +void b43_radio_turn_off(struct b43_wldev *dev, bool force) { struct b43_phy *phy = &dev->phy; + if (!phy->radio_on && !force) + return; + if (phy->type == B43_PHYTYPE_A) { b43_radio_write16(dev, 0x0004, 0x00FF); b43_radio_write16(dev, 0x0005, 0x00FB); @@ -4364,9 +4367,11 @@ void b43_radio_turn_off(struct b43_wldev *dev) rfover = b43_phy_read(dev, B43_PHY_RFOVER); rfoverval = b43_phy_read(dev, B43_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; + } b43_phy_write(dev, B43_PHY_RFOVER, rfover | 0x008C); b43_phy_write(dev, B43_PHY_RFOVERVAL, rfoverval & 0xFF73); } else diff --git a/drivers/net/wireless/b43/phy.h b/drivers/net/wireless/b43/phy.h index d1f623cb9b34..c64d74504fc0 100644 --- a/drivers/net/wireless/b43/phy.h +++ b/drivers/net/wireless/b43/phy.h @@ -267,7 +267,7 @@ u16 b43_radio_init2050(struct b43_wldev *dev); void b43_radio_init2060(struct b43_wldev *dev); void b43_radio_turn_on(struct b43_wldev *dev); -void b43_radio_turn_off(struct b43_wldev *dev); +void b43_radio_turn_off(struct b43_wldev *dev, bool force); int b43_radio_selectchannel(struct b43_wldev *dev, u8 channel, int synthetic_pu_workaround); diff --git a/drivers/net/wireless/b43/rfkill.c b/drivers/net/wireless/b43/rfkill.c new file mode 100644 index 000000000000..c25fd9956a9c --- /dev/null +++ b/drivers/net/wireless/b43/rfkill.c @@ -0,0 +1,155 @@ +/* + + 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 "b43.h" + + +static void b43_notify_rfkill_press(struct work_struct *work) +{ + struct b43_rfkill *rfk = container_of(work, struct b43_rfkill, + notify_work); + struct b43_wl *wl = container_of(rfk, struct b43_wl, rfkill); + struct b43_wldev *dev; + enum rfkill_state state; + + mutex_lock(&wl->mutex); + dev = wl->current_dev; + if (b43_status(dev) < B43_STAT_INITIALIZED) { + mutex_unlock(&wl->mutex); + return; + } + if (dev->radio_hw_enable) + state = RFKILL_STATE_ON; + else + state = RFKILL_STATE_OFF; + b43info(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 b43_rfkill_toggled(struct b43_wldev *dev, bool on) +{ + struct b43_wl *wl = dev->wl; + + B43_WARN_ON(b43_status(dev) < B43_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 b43_rfkill_soft_toggle(void *data, enum rfkill_state state) +{ + struct b43_wldev *dev = data; + struct b43_wl *wl = dev->wl; + int err = 0; + + mutex_lock(&wl->mutex); + if (b43_status(dev) < B43_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) + b43_radio_turn_on(dev); + break; + case RFKILL_STATE_OFF: + if (dev->phy.radio_on) + b43_radio_turn_off(dev, 0); + break; + } + +out_unlock: + mutex_unlock(&wl->mutex); + + return err; +} + +char * b43_rfkill_led_name(struct b43_wldev *dev) +{ + struct b43_wl *wl = dev->wl; + + if (!wl->rfkill.rfkill) + return NULL; + return rfkill_get_led_name(wl->rfkill.rfkill); +} + +void b43_rfkill_init(struct b43_wldev *dev) +{ + struct b43_wl *wl = dev->wl; + struct b43_rfkill *rfk = &(wl->rfkill); + int err; + + snprintf(rfk->name, sizeof(rfk->name), + "b43-%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 = b43_rfkill_soft_toggle; + rfk->rfkill->user_claim_unsupported = 1; + + INIT_WORK(&rfk->notify_work, b43_notify_rfkill_press); + + err = rfkill_register(rfk->rfkill); + if (err) + goto error; + + return; +error: + b43warn(dev->wl, "Failed to initialize the RF-kill button\n"); + rfkill_free(rfk->rfkill); + rfk->rfkill = NULL; +} + +void b43_rfkill_exit(struct b43_wldev *dev) +{ + struct b43_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/b43/rfkill.h b/drivers/net/wireless/b43/rfkill.h new file mode 100644 index 000000000000..05db0d67a92e --- /dev/null +++ b/drivers/net/wireless/b43/rfkill.h @@ -0,0 +1,49 @@ +#ifndef B43_RFKILL_H_ +#define B43_RFKILL_H_ + +struct b43_wldev; + + +#ifdef CONFIG_B43_RFKILL + +#include <linux/rfkill.h> + +struct b43_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 b43_rfkill_init(struct b43_wldev *dev); +void b43_rfkill_exit(struct b43_wldev *dev); +void b43_rfkill_toggled(struct b43_wldev *dev, bool on); +char * b43_rfkill_led_name(struct b43_wldev *dev); + + +#else /* CONFIG_B43_RFKILL */ +/* No RFKILL support. */ + +struct b43_rfkill { + /* empty */ +}; + +static inline void b43_rfkill_init(struct b43_wldev *dev) +{ +} +static inline void b43_rfkill_exit(struct b43_wldev *dev) +{ +} +static inline void b43_rfkill_toggled(struct b43_wldev *dev, bool on) +{ +} +static inline char * b43_rfkill_led_name(struct b43_wldev *dev) +{ + return NULL; +} + +#endif /* CONFIG_B43_RFKILL */ + +#endif /* B43_RFKILL_H_ */ |