blob: 0082f4b01795a1c80cbf453e7767893a1caf4dd5 [file] [log] [blame]
Johannes Berg704232c2007-04-23 12:20:05 -07001/*
2 * This file provides /sys/class/ieee80211/<wiphy name>/
3 * and some default attributes.
4 *
5 * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
7 *
8 * This file is GPLv2 as found in COPYING.
9 */
10
11#include <linux/device.h>
12#include <linux/module.h>
13#include <linux/netdevice.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <net/cfg80211.h>
17#include "sysfs.h"
18#include "core.h"
Hila Gonene35e4d22012-06-27 17:19:42 +030019#include "rdev-ops.h"
Johannes Berg704232c2007-04-23 12:20:05 -070020
21static inline struct cfg80211_registered_device *dev_to_rdev(
22 struct device *dev)
23{
24 return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
25}
26
Johannes Berg4f6d4d12008-10-28 14:00:54 +010027#define SHOW_FMT(name, fmt, member) \
28static ssize_t name ## _show(struct device *dev, \
29 struct device_attribute *attr, \
30 char *buf) \
31{ \
32 return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
Greg Kroah-Hartmanf0bc99c2013-07-24 15:05:35 -070033} \
34static DEVICE_ATTR_RO(name)
Johannes Berg704232c2007-04-23 12:20:05 -070035
Luis R. Rodriguezb5850a72009-02-21 00:04:19 -050036SHOW_FMT(index, "%d", wiphy_idx);
Johannes Berg4f6d4d12008-10-28 14:00:54 +010037SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
Johannes Bergef15aac2010-01-20 12:02:33 +010038SHOW_FMT(address_mask, "%pM", wiphy.addr_mask);
39
Ben Greearcfd8e122010-10-11 10:28:59 -070040static ssize_t name_show(struct device *dev,
41 struct device_attribute *attr,
42 char *buf) {
43 struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
44 return sprintf(buf, "%s\n", dev_name(&wiphy->dev));
45}
Greg Kroah-Hartmanf0bc99c2013-07-24 15:05:35 -070046static DEVICE_ATTR_RO(name);
Ben Greearcfd8e122010-10-11 10:28:59 -070047
Johannes Bergef15aac2010-01-20 12:02:33 +010048static ssize_t addresses_show(struct device *dev,
49 struct device_attribute *attr,
50 char *buf)
51{
52 struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
53 char *start = buf;
54 int i;
55
56 if (!wiphy->addresses)
57 return sprintf(buf, "%pM\n", wiphy->perm_addr);
58
59 for (i = 0; i < wiphy->n_addresses; i++)
Johannes Bergec53c832016-09-15 10:57:50 +020060 buf += sprintf(buf, "%pM\n", wiphy->addresses[i].addr);
Johannes Bergef15aac2010-01-20 12:02:33 +010061
62 return buf - start;
63}
Greg Kroah-Hartmanf0bc99c2013-07-24 15:05:35 -070064static DEVICE_ATTR_RO(addresses);
Johannes Berg704232c2007-04-23 12:20:05 -070065
Greg Kroah-Hartmanf0bc99c2013-07-24 15:05:35 -070066static struct attribute *ieee80211_attrs[] = {
67 &dev_attr_index.attr,
68 &dev_attr_macaddress.attr,
69 &dev_attr_address_mask.attr,
70 &dev_attr_addresses.attr,
71 &dev_attr_name.attr,
72 NULL,
Johannes Berg704232c2007-04-23 12:20:05 -070073};
Greg Kroah-Hartmanf0bc99c2013-07-24 15:05:35 -070074ATTRIBUTE_GROUPS(ieee80211);
Johannes Berg704232c2007-04-23 12:20:05 -070075
76static void wiphy_dev_release(struct device *dev)
77{
78 struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
79
80 cfg80211_dev_free(rdev);
81}
82
Kay Sievers7eff2e72007-08-14 15:15:12 +020083static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
Johannes Berg704232c2007-04-23 12:20:05 -070084{
85 /* TODO, we probably need stuff here */
86 return 0;
87}
Johannes Berg704232c2007-04-23 12:20:05 -070088
Lars-Peter Clausen262918d2015-05-16 14:35:54 +020089#ifdef CONFIG_PM_SLEEP
Stanislaw Gruszka81256962013-02-28 10:55:25 +010090static void cfg80211_leave_all(struct cfg80211_registered_device *rdev)
91{
92 struct wireless_dev *wdev;
93
Johannes Berg53873f12016-05-03 16:52:04 +030094 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list)
Stanislaw Gruszka81256962013-02-28 10:55:25 +010095 cfg80211_leave(rdev, wdev);
96}
97
Lars-Peter Clausen262918d2015-05-16 14:35:54 +020098static int wiphy_suspend(struct device *dev)
Johannes Berg0378b3f2009-01-19 11:20:52 -050099{
100 struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
101 int ret = 0;
102
Dan Williamscb3a8ee2009-02-11 17:14:43 -0500103 rdev->suspend_at = get_seconds();
104
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100105 rtnl_lock();
106 if (rdev->wiphy.registered) {
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200107 if (!rdev->wiphy.wowlan_config)
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100108 cfg80211_leave_all(rdev);
109 if (rdev->ops->suspend)
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200110 ret = rdev_suspend(rdev, rdev->wiphy.wowlan_config);
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100111 if (ret == 1) {
112 /* Driver refuse to configure wowlan */
113 cfg80211_leave_all(rdev);
114 ret = rdev_suspend(rdev, NULL);
115 }
Johannes Berg0378b3f2009-01-19 11:20:52 -0500116 }
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100117 rtnl_unlock();
Johannes Berg0378b3f2009-01-19 11:20:52 -0500118
119 return ret;
120}
121
122static int wiphy_resume(struct device *dev)
123{
124 struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
125 int ret = 0;
126
Dan Williamscb3a8ee2009-02-11 17:14:43 -0500127 /* Age scan results with time spent in suspend */
Dan Williamscb3a8ee2009-02-11 17:14:43 -0500128 cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
Dan Williamscb3a8ee2009-02-11 17:14:43 -0500129
Johannes Berg0378b3f2009-01-19 11:20:52 -0500130 if (rdev->ops->resume) {
131 rtnl_lock();
Stanislaw Gruszkaecb44332011-08-12 14:00:59 +0200132 if (rdev->wiphy.registered)
Hila Gonene35e4d22012-06-27 17:19:42 +0300133 ret = rdev_resume(rdev);
Johannes Berg0378b3f2009-01-19 11:20:52 -0500134 rtnl_unlock();
135 }
136
137 return ret;
138}
Lars-Peter Clausen262918d2015-05-16 14:35:54 +0200139
140static SIMPLE_DEV_PM_OPS(wiphy_pm_ops, wiphy_suspend, wiphy_resume);
141#define WIPHY_PM_OPS (&wiphy_pm_ops)
142#else
143#define WIPHY_PM_OPS NULL
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200144#endif
Johannes Berg0378b3f2009-01-19 11:20:52 -0500145
Johannes Berg04600792010-08-05 17:45:15 +0200146static const void *wiphy_namespace(struct device *d)
147{
148 struct wiphy *wiphy = container_of(d, struct wiphy, dev);
149
150 return wiphy_net(wiphy);
151}
152
Johannes Berg704232c2007-04-23 12:20:05 -0700153struct class ieee80211_class = {
154 .name = "ieee80211",
155 .owner = THIS_MODULE,
156 .dev_release = wiphy_dev_release,
Greg Kroah-Hartmanf0bc99c2013-07-24 15:05:35 -0700157 .dev_groups = ieee80211_groups,
Johannes Berg704232c2007-04-23 12:20:05 -0700158 .dev_uevent = wiphy_uevent,
Lars-Peter Clausen262918d2015-05-16 14:35:54 +0200159 .pm = WIPHY_PM_OPS,
Johannes Berg04600792010-08-05 17:45:15 +0200160 .ns_type = &net_ns_type_operations,
161 .namespace = wiphy_namespace,
Johannes Berg704232c2007-04-23 12:20:05 -0700162};
163
164int wiphy_sysfs_init(void)
165{
166 return class_register(&ieee80211_class);
167}
168
169void wiphy_sysfs_exit(void)
170{
171 class_unregister(&ieee80211_class);
172}