1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Authors:
5*4882a593Smuzhiyun * Alexander Aring <aar@pengutronix.de>
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Based on: net/wireless/sysfs.c
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/device.h>
11*4882a593Smuzhiyun #include <linux/rtnetlink.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #include <net/cfg802154.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include "core.h"
16*4882a593Smuzhiyun #include "sysfs.h"
17*4882a593Smuzhiyun #include "rdev-ops.h"
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun static inline struct cfg802154_registered_device *
dev_to_rdev(struct device * dev)20*4882a593Smuzhiyun dev_to_rdev(struct device *dev)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun return container_of(dev, struct cfg802154_registered_device,
23*4882a593Smuzhiyun wpan_phy.dev);
24*4882a593Smuzhiyun }
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun #define SHOW_FMT(name, fmt, member) \
27*4882a593Smuzhiyun static ssize_t name ## _show(struct device *dev, \
28*4882a593Smuzhiyun struct device_attribute *attr, \
29*4882a593Smuzhiyun char *buf) \
30*4882a593Smuzhiyun { \
31*4882a593Smuzhiyun return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
32*4882a593Smuzhiyun } \
33*4882a593Smuzhiyun static DEVICE_ATTR_RO(name)
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun SHOW_FMT(index, "%d", wpan_phy_idx);
36*4882a593Smuzhiyun
name_show(struct device * dev,struct device_attribute * attr,char * buf)37*4882a593Smuzhiyun static ssize_t name_show(struct device *dev,
38*4882a593Smuzhiyun struct device_attribute *attr,
39*4882a593Smuzhiyun char *buf)
40*4882a593Smuzhiyun {
41*4882a593Smuzhiyun struct wpan_phy *wpan_phy = &dev_to_rdev(dev)->wpan_phy;
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun return sprintf(buf, "%s\n", dev_name(&wpan_phy->dev));
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun static DEVICE_ATTR_RO(name);
46*4882a593Smuzhiyun
wpan_phy_release(struct device * dev)47*4882a593Smuzhiyun static void wpan_phy_release(struct device *dev)
48*4882a593Smuzhiyun {
49*4882a593Smuzhiyun struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun cfg802154_dev_free(rdev);
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun static struct attribute *pmib_attrs[] = {
55*4882a593Smuzhiyun &dev_attr_index.attr,
56*4882a593Smuzhiyun &dev_attr_name.attr,
57*4882a593Smuzhiyun NULL,
58*4882a593Smuzhiyun };
59*4882a593Smuzhiyun ATTRIBUTE_GROUPS(pmib);
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun #ifdef CONFIG_PM_SLEEP
wpan_phy_suspend(struct device * dev)62*4882a593Smuzhiyun static int wpan_phy_suspend(struct device *dev)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
65*4882a593Smuzhiyun int ret = 0;
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun if (rdev->ops->suspend) {
68*4882a593Smuzhiyun rtnl_lock();
69*4882a593Smuzhiyun ret = rdev_suspend(rdev);
70*4882a593Smuzhiyun rtnl_unlock();
71*4882a593Smuzhiyun }
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun return ret;
74*4882a593Smuzhiyun }
75*4882a593Smuzhiyun
wpan_phy_resume(struct device * dev)76*4882a593Smuzhiyun static int wpan_phy_resume(struct device *dev)
77*4882a593Smuzhiyun {
78*4882a593Smuzhiyun struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
79*4882a593Smuzhiyun int ret = 0;
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun if (rdev->ops->resume) {
82*4882a593Smuzhiyun rtnl_lock();
83*4882a593Smuzhiyun ret = rdev_resume(rdev);
84*4882a593Smuzhiyun rtnl_unlock();
85*4882a593Smuzhiyun }
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun return ret;
88*4882a593Smuzhiyun }
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun static SIMPLE_DEV_PM_OPS(wpan_phy_pm_ops, wpan_phy_suspend, wpan_phy_resume);
91*4882a593Smuzhiyun #define WPAN_PHY_PM_OPS (&wpan_phy_pm_ops)
92*4882a593Smuzhiyun #else
93*4882a593Smuzhiyun #define WPAN_PHY_PM_OPS NULL
94*4882a593Smuzhiyun #endif
95*4882a593Smuzhiyun
96*4882a593Smuzhiyun struct class wpan_phy_class = {
97*4882a593Smuzhiyun .name = "ieee802154",
98*4882a593Smuzhiyun .dev_release = wpan_phy_release,
99*4882a593Smuzhiyun .dev_groups = pmib_groups,
100*4882a593Smuzhiyun .pm = WPAN_PHY_PM_OPS,
101*4882a593Smuzhiyun };
102*4882a593Smuzhiyun
wpan_phy_sysfs_init(void)103*4882a593Smuzhiyun int wpan_phy_sysfs_init(void)
104*4882a593Smuzhiyun {
105*4882a593Smuzhiyun return class_register(&wpan_phy_class);
106*4882a593Smuzhiyun }
107*4882a593Smuzhiyun
wpan_phy_sysfs_exit(void)108*4882a593Smuzhiyun void wpan_phy_sysfs_exit(void)
109*4882a593Smuzhiyun {
110*4882a593Smuzhiyun class_unregister(&wpan_phy_class);
111*4882a593Smuzhiyun }
112