d91e2f37dc
This reverts commit 8125696991.
The commit"cfg80211/mac80211: disconnect on suspend" forces disconnection
on wlan interfaces if wake on wireless is not enabled from the user space.
Wake on Wireless is enabled by default in wlan driver (CLD) and cfg80211
layer never aware of wake on wirless enabled status done in wlan driver.
To avoid the disconnection while going to suspend and keep wlan driver
in WOW mode by default, the commit "cfg80211/mac80211: disconnect on
suspend" should be reverted.
CRs-Fixed: 540571
Change-Id: I483fe0530f9f00c338680416449215af326e3df1
Signed-off-by: Ganesh Kondabattini <ganeshk@codeaurora.org>
157 lines
3.5 KiB
C
157 lines
3.5 KiB
C
/*
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* This file provides /sys/class/ieee80211/<wiphy name>/
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* and some default attributes.
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*
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* Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
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* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
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*
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* This file is GPLv2 as found in COPYING.
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/nl80211.h>
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#include <linux/rtnetlink.h>
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#include <net/cfg80211.h>
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#include "sysfs.h"
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#include "core.h"
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#include "rdev-ops.h"
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static inline struct cfg80211_registered_device *dev_to_rdev(
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struct device *dev)
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{
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return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
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}
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#define SHOW_FMT(name, fmt, member) \
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static ssize_t name ## _show(struct device *dev, \
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struct device_attribute *attr, \
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char *buf) \
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{ \
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return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
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} \
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static DEVICE_ATTR_RO(name)
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SHOW_FMT(index, "%d", wiphy_idx);
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SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
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SHOW_FMT(address_mask, "%pM", wiphy.addr_mask);
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static ssize_t name_show(struct device *dev,
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struct device_attribute *attr,
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char *buf) {
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struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
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return sprintf(buf, "%s\n", dev_name(&wiphy->dev));
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}
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static DEVICE_ATTR_RO(name);
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static ssize_t addresses_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
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char *start = buf;
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int i;
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if (!wiphy->addresses)
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return sprintf(buf, "%pM\n", wiphy->perm_addr);
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for (i = 0; i < wiphy->n_addresses; i++)
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buf += sprintf(buf, "%pM\n", &wiphy->addresses[i].addr);
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return buf - start;
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}
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static DEVICE_ATTR_RO(addresses);
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static struct attribute *ieee80211_attrs[] = {
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&dev_attr_index.attr,
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&dev_attr_macaddress.attr,
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&dev_attr_address_mask.attr,
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&dev_attr_addresses.attr,
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&dev_attr_name.attr,
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NULL,
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};
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ATTRIBUTE_GROUPS(ieee80211);
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static void wiphy_dev_release(struct device *dev)
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{
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struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
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cfg80211_dev_free(rdev);
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}
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static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
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{
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/* TODO, we probably need stuff here */
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return 0;
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}
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#ifdef CONFIG_PM_SLEEP
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static int wiphy_suspend(struct device *dev)
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{
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struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
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int ret = 0;
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rdev->suspend_at = get_seconds();
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if (rdev->ops->suspend) {
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rtnl_lock();
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if (rdev->wiphy.registered)
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ret = rdev_suspend(rdev);
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rtnl_unlock();
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}
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return ret;
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}
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static int wiphy_resume(struct device *dev)
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{
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struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
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int ret = 0;
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/* Age scan results with time spent in suspend */
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cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
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if (rdev->ops->resume) {
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rtnl_lock();
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if (rdev->wiphy.registered)
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ret = rdev_resume(rdev);
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rtnl_unlock();
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}
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return ret;
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}
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static SIMPLE_DEV_PM_OPS(wiphy_pm_ops, wiphy_suspend, wiphy_resume);
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#define WIPHY_PM_OPS (&wiphy_pm_ops)
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#else
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#define WIPHY_PM_OPS NULL
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#endif
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static const void *wiphy_namespace(struct device *d)
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{
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struct wiphy *wiphy = container_of(d, struct wiphy, dev);
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return wiphy_net(wiphy);
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}
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struct class ieee80211_class = {
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.name = "ieee80211",
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.owner = THIS_MODULE,
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.dev_release = wiphy_dev_release,
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.dev_groups = ieee80211_groups,
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.dev_uevent = wiphy_uevent,
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.pm = WIPHY_PM_OPS,
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.ns_type = &net_ns_type_operations,
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.namespace = wiphy_namespace,
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};
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int wiphy_sysfs_init(void)
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{
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return class_register(&ieee80211_class);
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}
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void wiphy_sysfs_exit(void)
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{
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class_unregister(&ieee80211_class);
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}
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