[net-next-2.6.git] / net / wireless / sysfs.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"

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_HOTPLUG
static 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();
		ret = rdev->ops->suspend(&rdev->wiphy);
		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();
		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);
}
Commit	Line	Data
704232c2 JB	1	/*
	2	* This file provides /sys/class/ieee80211/<wiphy name>/
	3	* and some default attributes.
	4	*
	5	* Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
	6	* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
	7	*
	8	* This file is GPLv2 as found in COPYING.
	9	*/
	10
	11	#include <linux/device.h>
	12	#include <linux/module.h>
	13	#include <linux/netdevice.h>
	14	#include <linux/nl80211.h>
	15	#include <linux/rtnetlink.h>
	16	#include <net/cfg80211.h>
	17	#include "sysfs.h"
	18	#include "core.h"
	19
	20	static inline struct cfg80211_registered_device *dev_to_rdev(
	21	struct device *dev)
	22	{
	23	return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
	24	}
	25
4f6d4d1e JB	26	#define SHOW_FMT(name, fmt, member) \
	27	static ssize_t name ## _show(struct device *dev, \
	28	struct device_attribute *attr, \
	29	char *buf) \
	30	{ \
	31	return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
704232c2 JB	32	}
704232c2 JB	33
b5850a7a	34	SHOW_FMT(index, "%d", wiphy_idx);
4f6d4d1e	35	SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
ef15aac6 JB	36	SHOW_FMT(address_mask, "%pM", wiphy.addr_mask);
ef15aac6 JB	37
cfd8e12f BG	38	static ssize_t name_show(struct device *dev,
	39	struct device_attribute *attr,
	40	char *buf) {
	41	struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
	42	return sprintf(buf, "%s\n", dev_name(&wiphy->dev));
	43	}
	44
	45
ef15aac6 JB	46	static ssize_t addresses_show(struct device *dev,
	47	struct device_attribute *attr,
	48	char *buf)
	49	{
	50	struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
	51	char *start = buf;
	52	int i;
	53
	54	if (!wiphy->addresses)
	55	return sprintf(buf, "%pM\n", wiphy->perm_addr);
	56
	57	for (i = 0; i < wiphy->n_addresses; i++)
	58	buf += sprintf(buf, "%pM\n", &wiphy->addresses[i].addr);
	59
	60	return buf - start;
	61	}
704232c2 JB	62
704232c2 JB	63	static struct device_attribute ieee80211_dev_attrs[] = {
4f6d4d1e JB	64	__ATTR_RO(index),
4f6d4d1e JB	65	__ATTR_RO(macaddress),
ef15aac6 JB	66	__ATTR_RO(address_mask),
ef15aac6 JB	67	__ATTR_RO(addresses),
cfd8e12f	68	__ATTR_RO(name),
704232c2 JB	69	{}
	70	};
	71
	72	static void wiphy_dev_release(struct device *dev)
	73	{
	74	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
	75
	76	cfg80211_dev_free(rdev);
	77	}
	78
7b5ee3a0	79	#ifdef CONFIG_HOTPLUG
7eff2e7a	80	static int wiphy_uevent(struct device dev, struct kobj_uevent_env env)
704232c2 JB	81	{
	82	/* TODO, we probably need stuff here */
	83	return 0;
	84	}
7b5ee3a0	85	#endif
704232c2	86
0378b3f1 JB	87	static int wiphy_suspend(struct device *dev, pm_message_t state)
	88	{
	89	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
	90	int ret = 0;
	91
cb3a8eec DW	92	rdev->suspend_at = get_seconds();
cb3a8eec DW	93
0378b3f1 JB	94	if (rdev->ops->suspend) {
	95	rtnl_lock();
	96	ret = rdev->ops->suspend(&rdev->wiphy);
	97	rtnl_unlock();
	98	}
	99
	100	return ret;
	101	}
	102
	103	static int wiphy_resume(struct device *dev)
	104	{
	105	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
	106	int ret = 0;
	107
cb3a8eec DW	108	/* Age scan results with time spent in suspend */
	109	spin_lock_bh(&rdev->bss_lock);
	110	cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
	111	spin_unlock_bh(&rdev->bss_lock);
	112
0378b3f1 JB	113	if (rdev->ops->resume) {
	114	rtnl_lock();
	115	ret = rdev->ops->resume(&rdev->wiphy);
	116	rtnl_unlock();
	117	}
	118
	119	return ret;
	120	}
	121
04600794 JB	122	static const void wiphy_namespace(struct device d)
	123	{
	124	struct wiphy *wiphy = container_of(d, struct wiphy, dev);
	125
	126	return wiphy_net(wiphy);
	127	}
	128
704232c2 JB	129	struct class ieee80211_class = {
	130	.name = "ieee80211",
	131	.owner = THIS_MODULE,
	132	.dev_release = wiphy_dev_release,
	133	.dev_attrs = ieee80211_dev_attrs,
	134	#ifdef CONFIG_HOTPLUG
	135	.dev_uevent = wiphy_uevent,
	136	#endif
0378b3f1 JB	137	.suspend = wiphy_suspend,
0378b3f1 JB	138	.resume = wiphy_resume,
04600794 JB	139	.ns_type = &net_ns_type_operations,
04600794 JB	140	.namespace = wiphy_namespace,
704232c2 JB	141	};
	142
	143	int wiphy_sysfs_init(void)
	144	{
	145	return class_register(&ieee80211_class);
	146	}
	147
	148	void wiphy_sysfs_exit(void)
	149	{
	150	class_unregister(&ieee80211_class);
	151	}