3 Broadcom B43 wireless driver
7 Copyright (c) 2006 Michael Buesch <mb@bu3sch.de>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; see the file COPYING. If not, write to
21 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
22 Boston, MA 02110-1301, USA.
26 #include <linux/capability.h>
34 #define GENERIC_FILESIZE 64
36 static int get_integer(const char *buf, size_t count)
38 char tmp[10 + 1] = { 0 };
43 count = min(count, (size_t) 10);
44 memcpy(tmp, buf, count);
45 ret = simple_strtol(tmp, NULL, 10);
50 static ssize_t b43_attr_interfmode_show(struct device *dev,
51 struct device_attribute *attr,
54 struct b43_wldev *wldev = dev_to_b43_wldev(dev);
57 if (!capable(CAP_NET_ADMIN))
60 mutex_lock(&wldev->wl->mutex);
62 switch (wldev->phy.interfmode) {
63 case B43_INTERFMODE_NONE:
65 snprintf(buf, PAGE_SIZE,
66 "0 (No Interference Mitigation)\n");
68 case B43_INTERFMODE_NONWLAN:
70 snprintf(buf, PAGE_SIZE,
71 "1 (Non-WLAN Interference Mitigation)\n");
73 case B43_INTERFMODE_MANUALWLAN:
75 snprintf(buf, PAGE_SIZE,
76 "2 (WLAN Interference Mitigation)\n");
82 mutex_unlock(&wldev->wl->mutex);
87 static ssize_t b43_attr_interfmode_store(struct device *dev,
88 struct device_attribute *attr,
89 const char *buf, size_t count)
91 struct b43_wldev *wldev = dev_to_b43_wldev(dev);
96 if (!capable(CAP_NET_ADMIN))
99 mode = get_integer(buf, count);
102 mode = B43_INTERFMODE_NONE;
105 mode = B43_INTERFMODE_NONWLAN;
108 mode = B43_INTERFMODE_MANUALWLAN;
111 mode = B43_INTERFMODE_AUTOWLAN;
117 mutex_lock(&wldev->wl->mutex);
118 spin_lock_irqsave(&wldev->wl->irq_lock, flags);
120 err = b43_radio_set_interference_mitigation(wldev, mode);
122 b43err(wldev->wl, "Interference Mitigation not "
123 "supported by device\n");
126 spin_unlock_irqrestore(&wldev->wl->irq_lock, flags);
127 mutex_unlock(&wldev->wl->mutex);
129 return err ? err : count;
132 static DEVICE_ATTR(interference, 0644,
133 b43_attr_interfmode_show, b43_attr_interfmode_store);
135 int b43_sysfs_register(struct b43_wldev *wldev)
137 struct device *dev = wldev->dev->dev;
139 B43_WARN_ON(b43_status(wldev) != B43_STAT_INITIALIZED);
141 return device_create_file(dev, &dev_attr_interference);
144 void b43_sysfs_unregister(struct b43_wldev *wldev)
146 struct device *dev = wldev->dev->dev;
148 device_remove_file(dev, &dev_attr_interference);