Commit | Line | Data |
---|---|---|
28c61a66 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
704232c2 JB |
2 | /* |
3 | * This file provides /sys/class/ieee80211/<wiphy name>/ | |
4 | * and some default attributes. | |
5 | * | |
6 | * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz> | |
7 | * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> | |
a05829a7 | 8 | * Copyright (C) 2020-2021 Intel Corporation |
704232c2 JB |
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" | |
e35e4d28 | 19 | #include "rdev-ops.h" |
704232c2 JB |
20 | |
21 | static 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 | ||
4f6d4d1e JB |
27 | #define SHOW_FMT(name, fmt, member) \ |
28 | static 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); \ | |
f0bc99c8 GKH |
33 | } \ |
34 | static DEVICE_ATTR_RO(name) | |
704232c2 | 35 | |
b5850a7a | 36 | SHOW_FMT(index, "%d", wiphy_idx); |
4f6d4d1e | 37 | SHOW_FMT(macaddress, "%pM", wiphy.perm_addr); |
ef15aac6 JB |
38 | SHOW_FMT(address_mask, "%pM", wiphy.addr_mask); |
39 | ||
cfd8e12f BG |
40 | static ssize_t name_show(struct device *dev, |
41 | struct device_attribute *attr, | |
5ec71dd7 JB |
42 | char *buf) |
43 | { | |
cfd8e12f | 44 | struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy; |
5ec71dd7 JB |
45 | |
46 | return sprintf(buf, "%s\n", wiphy_name(wiphy)); | |
cfd8e12f | 47 | } |
f0bc99c8 | 48 | static DEVICE_ATTR_RO(name); |
cfd8e12f | 49 | |
ef15aac6 JB |
50 | static ssize_t addresses_show(struct device *dev, |
51 | struct device_attribute *attr, | |
52 | char *buf) | |
53 | { | |
54 | struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy; | |
55 | char *start = buf; | |
56 | int i; | |
57 | ||
58 | if (!wiphy->addresses) | |
59 | return sprintf(buf, "%pM\n", wiphy->perm_addr); | |
60 | ||
61 | for (i = 0; i < wiphy->n_addresses; i++) | |
ec53c832 | 62 | buf += sprintf(buf, "%pM\n", wiphy->addresses[i].addr); |
ef15aac6 JB |
63 | |
64 | return buf - start; | |
65 | } | |
f0bc99c8 GKH |
66 | static DEVICE_ATTR_RO(addresses); |
67 | ||
68 | static struct attribute *ieee80211_attrs[] = { | |
69 | &dev_attr_index.attr, | |
70 | &dev_attr_macaddress.attr, | |
71 | &dev_attr_address_mask.attr, | |
72 | &dev_attr_addresses.attr, | |
73 | &dev_attr_name.attr, | |
74 | NULL, | |
704232c2 | 75 | }; |
f0bc99c8 | 76 | ATTRIBUTE_GROUPS(ieee80211); |
704232c2 JB |
77 | |
78 | static void wiphy_dev_release(struct device *dev) | |
79 | { | |
80 | struct cfg80211_registered_device *rdev = dev_to_rdev(dev); | |
81 | ||
82 | cfg80211_dev_free(rdev); | |
83 | } | |
84 | ||
262918d8 | 85 | #ifdef CONFIG_PM_SLEEP |
81256969 SG |
86 | static void cfg80211_leave_all(struct cfg80211_registered_device *rdev) |
87 | { | |
88 | struct wireless_dev *wdev; | |
89 | ||
53873f13 | 90 | list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) |
81256969 SG |
91 | cfg80211_leave(rdev, wdev); |
92 | } | |
93 | ||
262918d8 | 94 | static int wiphy_suspend(struct device *dev) |
0378b3f1 JB |
95 | { |
96 | struct cfg80211_registered_device *rdev = dev_to_rdev(dev); | |
97 | int ret = 0; | |
98 | ||
fe0984d3 | 99 | rdev->suspend_at = ktime_get_boottime_seconds(); |
cb3a8eec | 100 | |
81256969 | 101 | rtnl_lock(); |
a05829a7 | 102 | wiphy_lock(&rdev->wiphy); |
81256969 | 103 | if (rdev->wiphy.registered) { |
e1957dba | 104 | if (!rdev->wiphy.wowlan_config) { |
81256969 | 105 | cfg80211_leave_all(rdev); |
e1957dba JB |
106 | cfg80211_process_rdev_events(rdev); |
107 | } | |
81256969 | 108 | if (rdev->ops->suspend) |
6abb9cb9 | 109 | ret = rdev_suspend(rdev, rdev->wiphy.wowlan_config); |
81256969 SG |
110 | if (ret == 1) { |
111 | /* Driver refuse to configure wowlan */ | |
112 | cfg80211_leave_all(rdev); | |
e1957dba | 113 | cfg80211_process_rdev_events(rdev); |
81256969 SG |
114 | ret = rdev_suspend(rdev, NULL); |
115 | } | |
0378b3f1 | 116 | } |
a05829a7 | 117 | wiphy_unlock(&rdev->wiphy); |
81256969 | 118 | rtnl_unlock(); |
0378b3f1 JB |
119 | |
120 | return ret; | |
121 | } | |
122 | ||
123 | static int wiphy_resume(struct device *dev) | |
124 | { | |
125 | struct cfg80211_registered_device *rdev = dev_to_rdev(dev); | |
126 | int ret = 0; | |
127 | ||
cb3a8eec | 128 | /* Age scan results with time spent in suspend */ |
fe0984d3 | 129 | cfg80211_bss_age(rdev, ktime_get_boottime_seconds() - rdev->suspend_at); |
cb3a8eec | 130 | |
b3ef5520 | 131 | rtnl_lock(); |
a05829a7 | 132 | wiphy_lock(&rdev->wiphy); |
b3ef5520 AVS |
133 | if (rdev->wiphy.registered && rdev->ops->resume) |
134 | ret = rdev_resume(rdev); | |
a05829a7 | 135 | wiphy_unlock(&rdev->wiphy); |
b3ef5520 | 136 | rtnl_unlock(); |
0378b3f1 JB |
137 | |
138 | return ret; | |
139 | } | |
262918d8 LPC |
140 | |
141 | static SIMPLE_DEV_PM_OPS(wiphy_pm_ops, wiphy_suspend, wiphy_resume); | |
142 | #define WIPHY_PM_OPS (&wiphy_pm_ops) | |
143 | #else | |
144 | #define WIPHY_PM_OPS NULL | |
6abb9cb9 | 145 | #endif |
0378b3f1 | 146 | |
04600794 JB |
147 | static const void *wiphy_namespace(struct device *d) |
148 | { | |
149 | struct wiphy *wiphy = container_of(d, struct wiphy, dev); | |
150 | ||
151 | return wiphy_net(wiphy); | |
152 | } | |
153 | ||
704232c2 JB |
154 | struct class ieee80211_class = { |
155 | .name = "ieee80211", | |
156 | .owner = THIS_MODULE, | |
157 | .dev_release = wiphy_dev_release, | |
f0bc99c8 | 158 | .dev_groups = ieee80211_groups, |
262918d8 | 159 | .pm = WIPHY_PM_OPS, |
04600794 JB |
160 | .ns_type = &net_ns_type_operations, |
161 | .namespace = wiphy_namespace, | |
704232c2 JB |
162 | }; |
163 | ||
164 | int wiphy_sysfs_init(void) | |
165 | { | |
166 | return class_register(&ieee80211_class); | |
167 | } | |
168 | ||
169 | void wiphy_sysfs_exit(void) | |
170 | { | |
171 | class_unregister(&ieee80211_class); | |
172 | } |