1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3
 4  Broadcom B43 wireless driver
 5  RFKILL support
 6
 7  Copyright (c) 2007 Michael Buesch <m@bues.ch>
 8
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 9
10*/
11
12#include "b43.h"
13
14
15/* Returns TRUE, if the radio is enabled in hardware. */
16bool b43_is_hw_radio_enabled(struct b43_wldev *dev)
17{
18	return !(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI)
19		& B43_MMIO_RADIO_HWENABLED_HI_MASK);
20}
21
22/* The poll callback for the hardware button. */
23void b43_rfkill_poll(struct ieee80211_hw *hw)
24{
25	struct b43_wl *wl = hw_to_b43_wl(hw);
26	struct b43_wldev *dev = wl->current_dev;
27	bool enabled;
28	bool brought_up = false;
29
30	mutex_lock(&wl->mutex);
31	if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) {
32		if (b43_bus_powerup(dev, 0)) {
33			mutex_unlock(&wl->mutex);
34			return;
35		}
36		b43_device_enable(dev, 0);
37		brought_up = true;
38	}
39
40	enabled = b43_is_hw_radio_enabled(dev);
41
42	if (unlikely(enabled != dev->radio_hw_enable)) {
43		dev->radio_hw_enable = enabled;
44		b43info(wl, "Radio hardware status changed to %s\n",
45			enabled ? "ENABLED" : "DISABLED");
46		wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
47		if (enabled != dev->phy.radio_on)
48			b43_software_rfkill(dev, !enabled);
49	}
50
51	if (brought_up) {
52		b43_device_disable(dev, 0);
53		b43_bus_may_powerdown(dev);
54	}
55
56	mutex_unlock(&wl->mutex);
57}

 
 1/*
 2
 3  Broadcom B43 wireless driver
 4  RFKILL support
 5
 6  Copyright (c) 2007 Michael Buesch <m@bues.ch>
 7
 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.
12
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.
17
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.
22
23*/
24
25#include "b43.h"
26
27
28/* Returns TRUE, if the radio is enabled in hardware. */
29bool b43_is_hw_radio_enabled(struct b43_wldev *dev)
30{
31	return !(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI)
32		& B43_MMIO_RADIO_HWENABLED_HI_MASK);
33}
34
35/* The poll callback for the hardware button. */
36void b43_rfkill_poll(struct ieee80211_hw *hw)
37{
38	struct b43_wl *wl = hw_to_b43_wl(hw);
39	struct b43_wldev *dev = wl->current_dev;
40	bool enabled;
41	bool brought_up = false;
42
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);
47			return;
48		}
49		b43_device_enable(dev, 0);
50		brought_up = true;
51	}
52
53	enabled = b43_is_hw_radio_enabled(dev);
54
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);
62	}
63
64	if (brought_up) {
65		b43_device_disable(dev, 0);
66		b43_bus_may_powerdown(dev);
67	}
68
69	mutex_unlock(&wl->mutex);
70}