linux-stable/net/ieee802154/sysfs.c
Thomas Gleixner 1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00

111 lines
2.2 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
*
* Authors:
* Alexander Aring <aar@pengutronix.de>
*
* Based on: net/wireless/sysfs.c
*/
#include <linux/device.h>
#include <linux/rtnetlink.h>
#include <net/cfg802154.h>
#include "core.h"
#include "sysfs.h"
#include "rdev-ops.h"
static inline struct cfg802154_registered_device *
dev_to_rdev(struct device *dev)
{
return container_of(dev, struct cfg802154_registered_device,
wpan_phy.dev);
}
#define SHOW_FMT(name, fmt, member) \
static ssize_t name ## _show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
} \
static DEVICE_ATTR_RO(name)
SHOW_FMT(index, "%d", wpan_phy_idx);
static ssize_t name_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct wpan_phy *wpan_phy = &dev_to_rdev(dev)->wpan_phy;
return sprintf(buf, "%s\n", dev_name(&wpan_phy->dev));
}
static DEVICE_ATTR_RO(name);
static void wpan_phy_release(struct device *dev)
{
struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
cfg802154_dev_free(rdev);
}
static struct attribute *pmib_attrs[] = {
&dev_attr_index.attr,
&dev_attr_name.attr,
NULL,
};
ATTRIBUTE_GROUPS(pmib);
#ifdef CONFIG_PM_SLEEP
static int wpan_phy_suspend(struct device *dev)
{
struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
int ret = 0;
if (rdev->ops->suspend) {
rtnl_lock();
ret = rdev_suspend(rdev);
rtnl_unlock();
}
return ret;
}
static int wpan_phy_resume(struct device *dev)
{
struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
int ret = 0;
if (rdev->ops->resume) {
rtnl_lock();
ret = rdev_resume(rdev);
rtnl_unlock();
}
return ret;
}
static SIMPLE_DEV_PM_OPS(wpan_phy_pm_ops, wpan_phy_suspend, wpan_phy_resume);
#define WPAN_PHY_PM_OPS (&wpan_phy_pm_ops)
#else
#define WPAN_PHY_PM_OPS NULL
#endif
struct class wpan_phy_class = {
.name = "ieee802154",
.dev_release = wpan_phy_release,
.dev_groups = pmib_groups,
.pm = WPAN_PHY_PM_OPS,
};
int wpan_phy_sysfs_init(void)
{
return class_register(&wpan_phy_class);
}
void wpan_phy_sysfs_exit(void)
{
class_unregister(&wpan_phy_class);
}