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authorKalle Valo <kalle.valo@nokia.com>2010-02-17 17:58:10 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-02-19 15:52:40 -0500
commitffb9eb3d8b450c22bbbc688c6b630141ac476fd9 (patch)
tree0e9677ea9df5b86fedf814236bf049a0f0435f6a /include
parent088ea189c4c75cdf211146faa4b341a0f7476be6 (diff)
nl80211: add power save commands
The most needed command from nl80211, which Wireless Extensions had, is support for power save mode. Add a simple command to make it possible to enable and disable power save via nl80211. I was also planning about extending the interface, for example adding the timeout value, but after thinking more about this I decided not to do it. Basically there were three reasons: Firstly, the parameters for power save are very much hardware dependent. Trying to find a unified interface which would work with all hardware, and still make sense to users, will be very difficult. Secondly, IEEE 802.11 power save implementation in Linux is still in state of flux. We have a long way to still to go and there is no way to predict what kind of implementation we will have after few years. And because we need to support nl80211 interface a long time, practically forever, adding now parameters to nl80211 might create maintenance problems later on. Third issue are the users. Power save parameters are mostly used for debugging, so debugfs is better, more flexible, interface for this. For example, wpa_supplicant currently doesn't configure anything related to power save mode. It's better to strive that kernel can automatically optimise the power save parameters, like with help of pm qos network and other traffic parameters. Later on, when we have better understanding of power save, we can extend this command with more features, if there's a need for that. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/nl80211.h10
-rw-r--r--include/net/cfg80211.h7
2 files changed, 14 insertions, 3 deletions
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 8e6384f8fda..28ba20fda3e 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -416,6 +416,9 @@ enum nl80211_commands {
NL80211_CMD_ACTION,
NL80211_CMD_ACTION_TX_STATUS,
+ NL80211_CMD_SET_POWER_SAVE,
+ NL80211_CMD_GET_POWER_SAVE,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -837,6 +840,8 @@ enum nl80211_attrs {
NL80211_ATTR_ACK,
+ NL80211_ATTR_PS_STATE,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -1573,4 +1578,9 @@ enum nl80211_band {
NL80211_BAND_5GHZ,
};
+enum nl80211_ps_state {
+ NL80211_PS_DISABLED,
+ NL80211_PS_ENABLED,
+};
+
#endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 7188934b64d..3d134a1fb96 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1150,7 +1150,6 @@ struct cfg80211_ops {
enum nl80211_channel_type channel_type,
const u8 *buf, size_t len, u64 *cookie);
- /* some temporary stuff to finish wext */
int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
bool enabled, int timeout);
};
@@ -1489,6 +1488,9 @@ struct wireless_dev {
struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
struct cfg80211_internal_bss *current_bss; /* associated / joined */
+ bool ps;
+ int ps_timeout;
+
#ifdef CONFIG_CFG80211_WEXT
/* wext data */
struct {
@@ -1500,8 +1502,7 @@ struct wireless_dev {
u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN];
s8 default_key, default_mgmt_key;
- bool ps, prev_bssid_valid;
- int ps_timeout;
+ bool prev_bssid_valid;
} wext;
#endif
};