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authorJohannes Berg <johannes.berg@intel.com>2010-12-18 19:20:47 +0300
committerJohn W. Linville <linville@tuxdriver.com>2011-01-06 00:07:12 +0300
commit21f83589644bb2ed98079bf1e2154c8e70ca6a6c (patch)
treeede391a8c788a43f7c4ea3baa3367e020d45f179 /net/mac80211/iface.c
parentc96e96354a6c9456cdf1f150eca504e2ea35301e (diff)
downloadlinux-21f83589644bb2ed98079bf1e2154c8e70ca6a6c.tar.xz
mac80211: implement hardware offload for remain-on-channel
This allows drivers to support remain-on-channel offload if they implement smarter timing or need to use a device implementation like iwlwifi. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/iface.c')
-rw-r--r--net/mac80211/iface.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index b6db237672ff..8acba456744e 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1264,7 +1264,7 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
int count = 0;
- bool working = false, scanning = false;
+ bool working = false, scanning = false, hw_roc = false;
struct ieee80211_work *wk;
unsigned int led_trig_start = 0, led_trig_stop = 0;
@@ -1308,6 +1308,9 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
local->scan_sdata->vif.bss_conf.idle = false;
}
+ if (local->hw_roc_channel)
+ hw_roc = true;
+
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->old_idle == sdata->vif.bss_conf.idle)
continue;
@@ -1316,7 +1319,7 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IDLE);
}
- if (working || scanning)
+ if (working || scanning || hw_roc)
led_trig_start |= IEEE80211_TPT_LEDTRIG_FL_WORK;
else
led_trig_stop |= IEEE80211_TPT_LEDTRIG_FL_WORK;
@@ -1328,6 +1331,8 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
ieee80211_mod_tpt_led_trig(local, led_trig_start, led_trig_stop);
+ if (hw_roc)
+ return ieee80211_idle_off(local, "hw remain-on-channel");
if (working)
return ieee80211_idle_off(local, "working");
if (scanning)