diff options
author | Arik Nemtsov <arik@wizery.com> | 2011-01-31 22:29:13 +0200 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2011-02-03 16:44:44 -0500 |
commit | d057e5a381cbaec5632117bf62ba49438ab16214 (patch) | |
tree | 723bd8c982747393b3f390b2c0ea75eb0c6bb62e /include/net/mac80211.h | |
parent | 8fd369eeaa81d05969787c9ddf9cf3f1a8c4e084 (diff) | |
download | blackbird-op-linux-d057e5a381cbaec5632117bf62ba49438ab16214.tar.gz blackbird-op-linux-d057e5a381cbaec5632117bf62ba49438ab16214.zip |
mac80211: add HW flag for disabling auto link-PS in AP mode
When operating in AP mode the wl1271 hardware filters out null-data
packets as well as management packets. This makes it impossible for
mac80211 to monitor the PS mode by using the PM bit of incoming frames.
Implement a HW flag to indicate that mac80211 should ignore the PM bit.
In addition, expose ieee80211_sta_ps_transition() to make low-level
drivers capable of controlling PS-mode.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net/mac80211.h')
-rw-r--r-- | include/net/mac80211.h | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index d6b0045788ce..0396cecd1d62 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1069,6 +1069,13 @@ enum ieee80211_tkip_key_type { * to decrypt group addressed frames, then IBSS RSN support is still * possible but software crypto will be used. Advertise the wiphy flag * only in that case. + * + * @IEEE80211_HW_AP_LINK_PS: When operating in AP mode the device + * autonomously manages the PS status of connected stations. When + * this flag is set mac80211 will not trigger PS mode for connected + * stations based on the PM bit of incoming frames. + * Use ieee80211_start_ps()/ieee8021_end_ps() to manually configure + * the PS mode of connected stations. */ enum ieee80211_hw_flags { IEEE80211_HW_HAS_RATE_CONTROL = 1<<0, @@ -1093,6 +1100,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_CONNECTION_MONITOR = 1<<19, IEEE80211_HW_SUPPORTS_CQM_RSSI = 1<<20, IEEE80211_HW_SUPPORTS_PER_STA_GTK = 1<<21, + IEEE80211_HW_AP_LINK_PS = 1<<22, }; /** @@ -1701,7 +1709,9 @@ enum ieee80211_ampdu_mlme_action { * station, AP, IBSS/WDS/mesh peer etc. This callback can sleep. * * @sta_notify: Notifies low level driver about power state transition of an - * associated station, AP, IBSS/WDS/mesh peer etc. Must be atomic. + * associated station, AP, IBSS/WDS/mesh peer etc. For a VIF operating + * in AP mode, this callback will not be called when the flag + * %IEEE80211_HW_AP_LINK_PS is set. Must be atomic. * * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), * bursting) for a hardware TX queue. @@ -2131,6 +2141,48 @@ static inline void ieee80211_rx_ni(struct ieee80211_hw *hw, local_bh_enable(); } +/** + * ieee80211_sta_ps_transition - PS transition for connected sta + * + * When operating in AP mode with the %IEEE80211_HW_AP_LINK_PS + * flag set, use this function to inform mac80211 about a connected station + * entering/leaving PS mode. + * + * This function may not be called in IRQ context or with softirqs enabled. + * + * Calls to this function for a single hardware must be synchronized against + * each other. + * + * The function returns -EINVAL when the requested PS mode is already set. + * + * @sta: currently connected sta + * @start: start or stop PS + */ +int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start); + +/** + * ieee80211_sta_ps_transition_ni - PS transition for connected sta + * (in process context) + * + * Like ieee80211_sta_ps_transition() but can be called in process context + * (internally disables bottom halves). Concurrent call restriction still + * applies. + * + * @sta: currently connected sta + * @start: start or stop PS + */ +static inline int ieee80211_sta_ps_transition_ni(struct ieee80211_sta *sta, + bool start) +{ + int ret; + + local_bh_disable(); + ret = ieee80211_sta_ps_transition(sta, start); + local_bh_enable(); + + return ret; +} + /* * The TX headroom reserved by mac80211 for its own tx_status functions. * This is enough for the radiotap header. |