diff options
Diffstat (limited to 'package/b43/src/rfkill.c')
| -rw-r--r-- | package/b43/src/rfkill.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/package/b43/src/rfkill.c b/package/b43/src/rfkill.c index 11f53cb113..e69de29bb2 100644 --- a/package/b43/src/rfkill.c +++ b/package/b43/src/rfkill.c @@ -1,201 +0,0 @@ -/* - - 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" - -#include <linux/kmod.h> - - -/* Returns TRUE, if the radio is enabled in hardware. */ -static bool b43_is_hw_radio_enabled(struct b43_wldev *dev) -{ - if (dev->phy.rev >= 3) { - if (!(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI) - & B43_MMIO_RADIO_HWENABLED_HI_MASK)) - return 1; - } else { - if (b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO) - & B43_MMIO_RADIO_HWENABLED_LO_MASK) - return 1; - } - return 0; -} - -/* The poll callback for the hardware button. */ -static void b43_rfkill_poll(struct input_polled_dev *poll_dev) -{ - struct b43_wldev *dev = poll_dev->private; - struct b43_wl *wl = dev->wl; - bool enabled; - bool report_change = 0; - - mutex_lock(&wl->mutex); - if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) { - mutex_unlock(&wl->mutex); - return; - } - 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"); - } - 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); - } -} - -/* 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_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_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_ON; - 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 */ - - 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; -} |