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1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* | |
e23e9ec1 AA |
3 | * |
4 | * Authors: | |
5 | * Alexander Aring <aar@pengutronix.de> | |
6 | * | |
7 | * Based on: net/wireless/sysfs.c | |
8 | */ | |
9 | ||
10 | #include <linux/device.h> | |
a6cb869b | 11 | #include <linux/rtnetlink.h> |
e23e9ec1 AA |
12 | |
13 | #include <net/cfg802154.h> | |
14 | ||
a5dd1d72 | 15 | #include "core.h" |
c5fbbc46 | 16 | #include "sysfs.h" |
a6cb869b | 17 | #include "rdev-ops.h" |
a5dd1d72 AA |
18 | |
19 | static inline struct cfg802154_registered_device * | |
20 | dev_to_rdev(struct device *dev) | |
21 | { | |
22 | return container_of(dev, struct cfg802154_registered_device, | |
23 | wpan_phy.dev); | |
24 | } | |
25 | ||
a6fd693f AA |
26 | #define SHOW_FMT(name, fmt, member) \ |
27 | static ssize_t name ## _show(struct device *dev, \ | |
28 | struct device_attribute *attr, \ | |
29 | char *buf) \ | |
30 | { \ | |
31 | return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \ | |
32 | } \ | |
33 | static DEVICE_ATTR_RO(name) | |
34 | ||
35 | SHOW_FMT(index, "%d", wpan_phy_idx); | |
36 | ||
37 | static ssize_t name_show(struct device *dev, | |
38 | struct device_attribute *attr, | |
39 | char *buf) | |
40 | { | |
41 | struct wpan_phy *wpan_phy = &dev_to_rdev(dev)->wpan_phy; | |
42 | ||
43 | return sprintf(buf, "%s\n", dev_name(&wpan_phy->dev)); | |
44 | } | |
45 | static DEVICE_ATTR_RO(name); | |
46 | ||
a5dd1d72 | 47 | static void wpan_phy_release(struct device *dev) |
e23e9ec1 | 48 | { |
a5dd1d72 | 49 | struct cfg802154_registered_device *rdev = dev_to_rdev(dev); |
e23e9ec1 | 50 | |
a5dd1d72 | 51 | cfg802154_dev_free(rdev); |
e23e9ec1 AA |
52 | } |
53 | ||
54 | static struct attribute *pmib_attrs[] = { | |
a6fd693f AA |
55 | &dev_attr_index.attr, |
56 | &dev_attr_name.attr, | |
e23e9ec1 AA |
57 | NULL, |
58 | }; | |
59 | ATTRIBUTE_GROUPS(pmib); | |
60 | ||
a6cb869b VB |
61 | #ifdef CONFIG_PM_SLEEP |
62 | static int wpan_phy_suspend(struct device *dev) | |
63 | { | |
64 | struct cfg802154_registered_device *rdev = dev_to_rdev(dev); | |
65 | int ret = 0; | |
66 | ||
67 | if (rdev->ops->suspend) { | |
68 | rtnl_lock(); | |
69 | ret = rdev_suspend(rdev); | |
70 | rtnl_unlock(); | |
71 | } | |
72 | ||
73 | return ret; | |
74 | } | |
75 | ||
76 | static int wpan_phy_resume(struct device *dev) | |
77 | { | |
78 | struct cfg802154_registered_device *rdev = dev_to_rdev(dev); | |
79 | int ret = 0; | |
80 | ||
81 | if (rdev->ops->resume) { | |
82 | rtnl_lock(); | |
83 | ret = rdev_resume(rdev); | |
84 | rtnl_unlock(); | |
85 | } | |
86 | ||
87 | return ret; | |
88 | } | |
89 | ||
90 | static SIMPLE_DEV_PM_OPS(wpan_phy_pm_ops, wpan_phy_suspend, wpan_phy_resume); | |
91 | #define WPAN_PHY_PM_OPS (&wpan_phy_pm_ops) | |
92 | #else | |
93 | #define WPAN_PHY_PM_OPS NULL | |
94 | #endif | |
95 | ||
e23e9ec1 AA |
96 | struct class wpan_phy_class = { |
97 | .name = "ieee802154", | |
98 | .dev_release = wpan_phy_release, | |
99 | .dev_groups = pmib_groups, | |
a6cb869b | 100 | .pm = WPAN_PHY_PM_OPS, |
e23e9ec1 AA |
101 | }; |
102 | ||
103 | int wpan_phy_sysfs_init(void) | |
104 | { | |
105 | return class_register(&wpan_phy_class); | |
106 | } | |
107 | ||
108 | void wpan_phy_sysfs_exit(void) | |
109 | { | |
110 | class_unregister(&wpan_phy_class); | |
111 | } |