diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2009-01-07 20:28:20 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-01-29 23:59:58 +0300 |
| commit | 4be8c3873e0b88397866d3ede578503e188f9ad2 (patch) | |
| tree | 1ccf8a0c204bb01aca08d90c2d8c37b5e0439bd3 /net/mac80211/wext.c | |
| parent | acbaf32e94cb70218792cac68e5149e482e77441 (diff) | |
| download | linux-4be8c3873e0b88397866d3ede578503e188f9ad2.tar.xz | |
mac80211: extend/document powersave API
This modifies hardware flags for powersave to support three different
flags:
* IEEE80211_HW_SUPPORTS_PS - indicates general PS support
* IEEE80211_HW_PS_NULLFUNC_STACK - indicates nullfunc sending in software
* IEEE80211_HW_SUPPORTS_DYNAMIC_PS - indicates dynamic PS on the device
It also adds documentation for all this which explains how to set the
various flags.
Additionally, it fixes a few things:
* a spot where && was used to test flags
* enable CONF_PS only when associated again
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/wext.c')
| -rw-r--r-- | net/mac80211/wext.c | 40 |
1 files changed, 24 insertions, 16 deletions
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 3f2db0bda46c..1e5b29bdb3a7 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -837,6 +837,9 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev, int ret = 0, timeout = 0; bool ps; + if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) + return -EOPNOTSUPP; + if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EINVAL; @@ -862,32 +865,37 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev, if (wrq->flags & IW_POWER_TIMEOUT) timeout = wrq->value / 1000; -set: + set: if (ps == local->powersave && timeout == conf->dynamic_ps_timeout) return ret; local->powersave = ps; conf->dynamic_ps_timeout = timeout; - if (local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) { + if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) ret = ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT); - } else if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) { - if (conf->dynamic_ps_timeout > 0) - mod_timer(&local->dynamic_ps_timer, jiffies + - msecs_to_jiffies(conf->dynamic_ps_timeout)); - else { - if (local->powersave) { + + if (!(sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)) + return ret; + + if (conf->dynamic_ps_timeout > 0 && + !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) { + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(conf->dynamic_ps_timeout)); + } else { + if (local->powersave) { + if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) ieee80211_send_nullfunc(local, sdata, 1); - conf->flags |= IEEE80211_CONF_PS; - ret = ieee80211_hw_config(local, - IEEE80211_CONF_CHANGE_PS); - } else { - conf->flags &= ~IEEE80211_CONF_PS; - ret = ieee80211_hw_config(local, - IEEE80211_CONF_CHANGE_PS); + conf->flags |= IEEE80211_CONF_PS; + ret = ieee80211_hw_config(local, + IEEE80211_CONF_CHANGE_PS); + } else { + conf->flags &= ~IEEE80211_CONF_PS; + ret = ieee80211_hw_config(local, + IEEE80211_CONF_CHANGE_PS); + if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) ieee80211_send_nullfunc(local, sdata, 0); - } } } |