diff options
Diffstat (limited to 'drivers/net/wireless/b43/rfkill.c')
-rw-r--r-- | drivers/net/wireless/b43/rfkill.c | 171 |
1 files changed, 20 insertions, 151 deletions
diff --git a/drivers/net/wireless/b43/rfkill.c b/drivers/net/wireless/b43/rfkill.c index afad42358693..31e55999893f 100644 --- a/drivers/net/wireless/b43/rfkill.c +++ b/drivers/net/wireless/b43/rfkill.c @@ -22,15 +22,11 @@ */ -#include "rfkill.h" #include "b43.h" -#include "phy_common.h" - -#include <linux/kmod.h> /* Returns TRUE, if the radio is enabled in hardware. */ -static bool b43_is_hw_radio_enabled(struct b43_wldev *dev) +bool b43_is_hw_radio_enabled(struct b43_wldev *dev) { if (dev->phy.rev >= 3) { if (!(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI) @@ -45,166 +41,39 @@ static bool b43_is_hw_radio_enabled(struct b43_wldev *dev) } /* The poll callback for the hardware button. */ -static void b43_rfkill_poll(struct input_polled_dev *poll_dev) +void b43_rfkill_poll(struct ieee80211_hw *hw) { - struct b43_wldev *dev = poll_dev->private; - struct b43_wl *wl = dev->wl; + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev = wl->current_dev; + struct ssb_bus *bus = dev->dev->bus; bool enabled; - bool report_change = 0; + bool brought_up = false; mutex_lock(&wl->mutex); if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) { - mutex_unlock(&wl->mutex); - return; + if (ssb_bus_powerup(bus, 0)) { + mutex_unlock(&wl->mutex); + return; + } + ssb_device_enable(dev->dev, 0); + brought_up = true; } + enabled = b43_is_hw_radio_enabled(dev); + if (unlikely(enabled != dev->radio_hw_enable)) { dev->radio_hw_enable = enabled; - report_change = 1; b43info(wl, "Radio hardware status changed to %s\n", enabled ? "ENABLED" : "DISABLED"); + wiphy_rfkill_set_hw_state(hw->wiphy, !enabled); + if (enabled != dev->phy.radio_on) + b43_software_rfkill(dev, !enabled); } - 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); + if (brought_up) { + ssb_device_disable(dev->dev, 0); + ssb_bus_may_powerdown(bus); } -} - -/* Called when the RFKILL toggled in software. */ -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 = -EBUSY; - if (!wl->rfkill.registered) - return 0; - - mutex_lock(&wl->mutex); - if (b43_status(dev) < B43_STAT_INITIALIZED) - goto out_unlock; - err = 0; - switch (state) { - case RFKILL_STATE_UNBLOCKED: - 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_software_rfkill(dev, state); - break; - case RFKILL_STATE_SOFT_BLOCKED: - if (dev->phy.radio_on) - b43_software_rfkill(dev, state); - break; - default: - b43warn(wl, "Received unexpected rfkill state %d.\n", state); - break; - } -out_unlock: mutex_unlock(&wl->mutex); - - return err; -} - -char *b43_rfkill_led_name(struct b43_wldev *dev) -{ - struct b43_rfkill *rfk = &(dev->wl->rfkill); - - if (!rfk->registered) - return NULL; - return rfkill_get_led_name(rfk->rfkill); -} - -void b43_rfkill_init(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - struct b43_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), - "b43-%s", wiphy_name(wl->hw->wiphy)); - rfk->rfkill->name = rfk->name; - rfk->rfkill->state = RFKILL_STATE_UNBLOCKED; - rfk->rfkill->data = dev; - rfk->rfkill->toggle_radio = b43_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 = b43_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 - /* B43 RF-kill isn't useful without the rfkill-input subsystem. - * Try to load the module. */ - err = request_module("rfkill-input"); - if (err) - b43warn(wl, "Failed to load the rfkill-input module. " - "The built-in radio LED will not work.\n"); -#endif /* CONFIG_RFKILL_INPUT */ - -#if !defined(CONFIG_RFKILL_INPUT) && !defined(CONFIG_RFKILL_INPUT_MODULE) - b43warn(wl, "The rfkill-input subsystem is not available. " - "The built-in radio LED will not work.\n"); -#endif - - 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; - b43warn(wl, "RF-kill button init failed\n"); -} - -void b43_rfkill_exit(struct b43_wldev *dev) -{ - struct b43_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; } |