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cfg80211: allow requesting SMPS mode on ap start

Add feature bits to indicate device support for static-smps and dynamic-smps modes. Add a new NL80211_ATTR_SMPS_MODE attribue to allow configuring the smps mode to be used by the ap (e.g. configuring to ap to dynamic smps mode will reduce power consumption while having minor effect on throughput)

Eliad Peller committed 12 years ago

Commit 18998c31 parent 59cd85c3 files · +59 −0Browse files

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include/uapi/linux/nl80211.h+33−0
@@ -1635,6 +1635,9 @@ enum nl80211_commands { · 1634 unmodified lines
16351635 * @NL80211_ATTR_ADMITTED_TIME: admitted time in units of 32 microseconds
16361636 * (per second) (u16 attribute)
16371637 *
1638+ * @NL80211_ATTR_SMPS_MODE: SMPS mode to use (ap mode). see
1639+ * &enum nl80211_smps_mode.
1640+ *
16381641 * @NL80211_ATTR_MAX: highest attribute number currently defined
16391642 * @__NL80211_ATTR_AFTER_LAST: internal use
16401643 */
@@ -1985,6 +1988,8 @@ enum nl80211_attrs { · 344 unmodified lines
19851988 NL80211_ATTR_USER_PRIO,
19861989 NL80211_ATTR_ADMITTED_TIME,
19871990
1991+ NL80211_ATTR_SMPS_MODE,
1992+
19881993 /* add attributes here, update the policy in nl80211.c */
19891994
19901995 __NL80211_ATTR_AFTER_LAST,
@@ -4030,6 +4035,13 @@ enum nl80211_ap_sme_features { · 2039 unmodified lines
40304035 * @NL80211_FEATURE_ACKTO_ESTIMATION: This driver supports dynamic ACK timeout
40314036 * estimation (dynack). %NL80211_ATTR_WIPHY_DYN_ACK flag attribute is used
40324037 * to enable dynack.
4038+ * @NL80211_FEATURE_STATIC_SMPS: Device supports static spatial
4039+ * multiplexing powersave, ie. can turn off all but one chain
4040+ * even on HT connections that should be using more chains.
4041+ * @NL80211_FEATURE_DYNAMIC_SMPS: Device supports dynamic spatial
4042+ * multiplexing powersave, ie. can turn off all but one chain
4043+ * and then wake the rest up as required after, for example,
4044+ * rts/cts handshake.
40334045 */
40344046 enum nl80211_feature_flags {
40354047 NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
@@ -4056,6 +4068,8 @@ enum nl80211_feature_flags { · 20 unmodified lines
40564068 NL80211_FEATURE_QUIET = 1 << 21,
40574069 NL80211_FEATURE_TX_POWER_INSERTION = 1 << 22,
40584070 NL80211_FEATURE_ACKTO_ESTIMATION = 1 << 23,
4071+ NL80211_FEATURE_STATIC_SMPS = 1 << 24,
4072+ NL80211_FEATURE_DYNAMIC_SMPS = 1 << 25,
40594073 };
40604074
40614075 /**
@@ -4129,6 +4143,25 @@ enum nl80211_acl_policy { · 67 unmodified lines
41294143 NL80211_ACL_POLICY_DENY_UNLESS_LISTED,
41304144 };
41314145
4146+/**
4147+ * enum nl80211_smps_mode - SMPS mode
4148+ *
4149+ * Requested SMPS mode (for AP mode)
4150+ *
4151+ * @NL80211_SMPS_OFF: SMPS off (use all antennas).
4152+ * @NL80211_SMPS_STATIC: static SMPS (use a single antenna)
4153+ * @NL80211_SMPS_DYNAMIC: dynamic smps (start with a single antenna and
4154+ * turn on other antennas after CTS/RTS).
4155+ */
4156+enum nl80211_smps_mode {
4157+ NL80211_SMPS_OFF,
4158+ NL80211_SMPS_STATIC,
4159+ NL80211_SMPS_DYNAMIC,
4160+
4161+ __NL80211_SMPS_AFTER_LAST,
4162+ NL80211_SMPS_MAX = __NL80211_SMPS_AFTER_LAST - 1
4163+};
4164+
41324165 /**
41334166 * enum nl80211_radar_event - type of radar event for DFS operation
41344167 *