/* * 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" 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);} #ifdef CONFIG_HOTPLUGstatic int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env){	/* TODO, we probably need stuff here */	return 0;}#endif 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->ops->suspend(&rdev->wiphy, rdev->wowlan);		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->ops->resume(&rdev->wiphy);		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,#ifdef CONFIG_HOTPLUG	.dev_uevent = wiphy_uevent,#endif	.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);}