mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 02:30:34 +02:00
a6cb869b3b
This patch help to implement suspend/resume in mac802154, these hooks will be run before the device is suspended and after it resumes. Signed-off-by: Varka Bhadram <varkab@cdac.in> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
117 lines
2.6 KiB
C
117 lines
2.6 KiB
C
/* 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.
|
|
*
|
|
* 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);
|
|
}
|