3 Broadcom B43 wireless driver
6 Copyright (c) 2007 Michael Buesch <mb@bu3sch.de>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
21 Boston, MA 02110-1301, USA.
28 /* Returns TRUE, if the radio is enabled in hardware. */
29 bool b43_is_hw_radio_enabled(struct b43_wldev *dev)
31 return !(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI)
32 & B43_MMIO_RADIO_HWENABLED_HI_MASK);
35 /* The poll callback for the hardware button. */
36 void b43_rfkill_poll(struct ieee80211_hw *hw)
38 struct b43_wl *wl = hw_to_b43_wl(hw);
39 struct b43_wldev *dev = wl->current_dev;
41 bool brought_up = false;
43 mutex_lock(&wl->mutex);
44 if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) {
45 if (b43_bus_powerup(dev, 0)) {
46 mutex_unlock(&wl->mutex);
49 b43_device_enable(dev, 0);
53 enabled = b43_is_hw_radio_enabled(dev);
55 if (unlikely(enabled != dev->radio_hw_enable)) {
56 dev->radio_hw_enable = enabled;
57 b43info(wl, "Radio hardware status changed to %s\n",
58 enabled ? "ENABLED" : "DISABLED");
59 wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
60 if (enabled != dev->phy.radio_on)
61 b43_software_rfkill(dev, !enabled);
65 b43_device_disable(dev, 0);
66 b43_bus_may_powerdown(dev);
69 mutex_unlock(&wl->mutex);