[linux.git] / net / wireless / sysfs.c

/*
 * This file provides /sys/class/ieee80211/<wiphy name>/
 * and some default attributes.
 *
 * Copyright 2005-2006	Jiri Benc <[email protected]>
 * Copyright 2006	Johannes Berg <[email protected]>
 *
 * 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 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),
	{}
};

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;
}

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,
};

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 <[email protected]>
	6	* Copyright 2006 Johannes Berg <[email protected]>
	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);
	37
	38	static ssize_t addresses_show(struct device *dev,
	39	struct device_attribute *attr,
	40	char *buf)
	41	{
	42	struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
	43	char *start = buf;
	44	int i;
	45
	46	if (!wiphy->addresses)
	47	return sprintf(buf, "%pM\n", wiphy->perm_addr);
	48
	49	for (i = 0; i < wiphy->n_addresses; i++)
	50	buf += sprintf(buf, "%pM\n", &wiphy->addresses[i].addr);
	51
	52	return buf - start;
	53	}
704232c2 JB	54
704232c2 JB	55	static struct device_attribute ieee80211_dev_attrs[] = {
4f6d4d1e JB	56	__ATTR_RO(index),
4f6d4d1e JB	57	__ATTR_RO(macaddress),
ef15aac6 JB	58	__ATTR_RO(address_mask),
ef15aac6 JB	59	__ATTR_RO(addresses),
704232c2 JB	60	{}
	61	};
	62
	63	static void wiphy_dev_release(struct device *dev)
	64	{
	65	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
	66
	67	cfg80211_dev_free(rdev);
	68	}
	69
7b5ee3a0	70	#ifdef CONFIG_HOTPLUG
7eff2e7a	71	static int wiphy_uevent(struct device dev, struct kobj_uevent_env env)
704232c2 JB	72	{
	73	/* TODO, we probably need stuff here */
	74	return 0;
	75	}
7b5ee3a0	76	#endif
704232c2	77
0378b3f1 JB	78	static int wiphy_suspend(struct device *dev, pm_message_t state)
	79	{
	80	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
	81	int ret = 0;
	82
cb3a8eec DW	83	rdev->suspend_at = get_seconds();
cb3a8eec DW	84
0378b3f1 JB	85	if (rdev->ops->suspend) {
	86	rtnl_lock();
	87	ret = rdev->ops->suspend(&rdev->wiphy);
	88	rtnl_unlock();
	89	}
	90
	91	return ret;
	92	}
	93
	94	static int wiphy_resume(struct device *dev)
	95	{
	96	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
	97	int ret = 0;
	98
cb3a8eec DW	99	/* Age scan results with time spent in suspend */
	100	spin_lock_bh(&rdev->bss_lock);
	101	cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
	102	spin_unlock_bh(&rdev->bss_lock);
	103
0378b3f1 JB	104	if (rdev->ops->resume) {
	105	rtnl_lock();
	106	ret = rdev->ops->resume(&rdev->wiphy);
	107	rtnl_unlock();
	108	}
	109
	110	return ret;
	111	}
	112
704232c2 JB	113	struct class ieee80211_class = {
	114	.name = "ieee80211",
	115	.owner = THIS_MODULE,
	116	.dev_release = wiphy_dev_release,
	117	.dev_attrs = ieee80211_dev_attrs,
	118	#ifdef CONFIG_HOTPLUG
	119	.dev_uevent = wiphy_uevent,
	120	#endif
0378b3f1 JB	121	.suspend = wiphy_suspend,
0378b3f1 JB	122	.resume = wiphy_resume,
704232c2 JB	123	};
	124
	125	int wiphy_sysfs_init(void)
	126	{
	127	return class_register(&ieee80211_class);
	128	}
	129
	130	void wiphy_sysfs_exit(void)
	131	{
	132	class_unregister(&ieee80211_class);
	133	}