mirror of https://gitee.com/openkylin/linux.git
151 lines
3.3 KiB
C
151 lines
3.3 KiB
C
/*
|
|
* This file provides /sys/class/ieee80211/<wiphy name>/
|
|
* and some default attributes.
|
|
*
|
|
* Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
|
|
* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
|
|
*
|
|
* This file is GPLv2 as found in COPYING.
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/module.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/nl80211.h>
|
|
#include <linux/rtnetlink.h>
|
|
#include <net/cfg80211.h>
|
|
#include "sysfs.h"
|
|
#include "core.h"
|
|
#include "rdev-ops.h"
|
|
|
|
static inline struct cfg80211_registered_device *dev_to_rdev(
|
|
struct device *dev)
|
|
{
|
|
return container_of(dev, struct cfg80211_registered_device, wiphy.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); \
|
|
}
|
|
|
|
SHOW_FMT(index, "%d", wiphy_idx);
|
|
SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
|
|
SHOW_FMT(address_mask, "%pM", wiphy.addr_mask);
|
|
|
|
static ssize_t name_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf) {
|
|
struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
|
|
return sprintf(buf, "%s\n", dev_name(&wiphy->dev));
|
|
}
|
|
|
|
|
|
static ssize_t addresses_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
|
|
char *start = buf;
|
|
int i;
|
|
|
|
if (!wiphy->addresses)
|
|
return sprintf(buf, "%pM\n", wiphy->perm_addr);
|
|
|
|
for (i = 0; i < wiphy->n_addresses; i++)
|
|
buf += sprintf(buf, "%pM\n", &wiphy->addresses[i].addr);
|
|
|
|
return buf - start;
|
|
}
|
|
|
|
static struct device_attribute ieee80211_dev_attrs[] = {
|
|
__ATTR_RO(index),
|
|
__ATTR_RO(macaddress),
|
|
__ATTR_RO(address_mask),
|
|
__ATTR_RO(addresses),
|
|
__ATTR_RO(name),
|
|
{}
|
|
};
|
|
|
|
static void wiphy_dev_release(struct device *dev)
|
|
{
|
|
struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
|
|
|
|
cfg80211_dev_free(rdev);
|
|
}
|
|
|
|
static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
|
|
{
|
|
/* TODO, we probably need stuff here */
|
|
return 0;
|
|
}
|
|
|
|
static int wiphy_suspend(struct device *dev, pm_message_t state)
|
|
{
|
|
struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
|
|
int ret = 0;
|
|
|
|
rdev->suspend_at = get_seconds();
|
|
|
|
if (rdev->ops->suspend) {
|
|
rtnl_lock();
|
|
if (rdev->wiphy.registered)
|
|
ret = rdev_suspend(rdev);
|
|
rtnl_unlock();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int wiphy_resume(struct device *dev)
|
|
{
|
|
struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
|
|
int ret = 0;
|
|
|
|
/* Age scan results with time spent in suspend */
|
|
spin_lock_bh(&rdev->bss_lock);
|
|
cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
|
|
spin_unlock_bh(&rdev->bss_lock);
|
|
|
|
if (rdev->ops->resume) {
|
|
rtnl_lock();
|
|
if (rdev->wiphy.registered)
|
|
ret = rdev_resume(rdev);
|
|
rtnl_unlock();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const void *wiphy_namespace(struct device *d)
|
|
{
|
|
struct wiphy *wiphy = container_of(d, struct wiphy, dev);
|
|
|
|
return wiphy_net(wiphy);
|
|
}
|
|
|
|
struct class ieee80211_class = {
|
|
.name = "ieee80211",
|
|
.owner = THIS_MODULE,
|
|
.dev_release = wiphy_dev_release,
|
|
.dev_attrs = ieee80211_dev_attrs,
|
|
.dev_uevent = wiphy_uevent,
|
|
.suspend = wiphy_suspend,
|
|
.resume = wiphy_resume,
|
|
.ns_type = &net_ns_type_operations,
|
|
.namespace = wiphy_namespace,
|
|
};
|
|
|
|
int wiphy_sysfs_init(void)
|
|
{
|
|
return class_register(&ieee80211_class);
|
|
}
|
|
|
|
void wiphy_sysfs_exit(void)
|
|
{
|
|
class_unregister(&ieee80211_class);
|
|
}
|