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.
26 #include "b43legacy.h"
29 /* Returns TRUE, if the radio is enabled in hardware. */
30 bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev)
32 if (dev->phy.rev >= 3) {
33 if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI)
34 & B43legacy_MMIO_RADIO_HWENABLED_HI_MASK))
37 if (b43legacy_read16(dev, B43legacy_MMIO_RADIO_HWENABLED_LO)
38 & B43legacy_MMIO_RADIO_HWENABLED_LO_MASK)
44 /* The poll callback for the hardware button. */
45 void b43legacy_rfkill_poll(struct ieee80211_hw *hw)
47 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
48 struct b43legacy_wldev *dev = wl->current_dev;
49 struct ssb_bus *bus = dev->dev->bus;
51 bool brought_up = false;
53 mutex_lock(&wl->mutex);
54 if (unlikely(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)) {
55 if (ssb_bus_powerup(bus, 0)) {
56 mutex_unlock(&wl->mutex);
59 ssb_device_enable(dev->dev, 0);
63 enabled = b43legacy_is_hw_radio_enabled(dev);
65 if (unlikely(enabled != dev->radio_hw_enable)) {
66 dev->radio_hw_enable = enabled;
67 b43legacyinfo(wl, "Radio hardware status changed to %s\n",
68 enabled ? "ENABLED" : "DISABLED");
69 wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
70 if (enabled != dev->phy.radio_on) {
72 b43legacy_radio_turn_on(dev);
74 b43legacy_radio_turn_off(dev, 0);
79 ssb_device_disable(dev->dev, 0);
80 ssb_bus_may_powerdown(bus);
83 mutex_unlock(&wl->mutex);