This adds the survey function to both mac80211 itself and to mac80211_hwsim.
For the latter driver, we simply invent some noise level.
Signed-off-by: Holger Schurig <holgerschurig@xxxxxxxxx>
--- linux-wl.orig/include/net/mac80211.h
+++ linux-wl/include/net/mac80211.h
@@ -1507,7 +1507,8 @@
int (*ampdu_action)(struct ieee80211_hw *hw,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid, u16 *ssn);
-
+ int (*get_survey)(struct ieee80211_hw *hw, int idx,
+ struct survey_info *survey);
void (*rfkill_poll)(struct ieee80211_hw *hw);
#ifdef CONFIG_NL80211_TESTMODE
int (*testmode_cmd)(struct ieee80211_hw *hw, void *data, int len);
--- linux-wl.orig/net/mac80211/cfg.c
+++ linux-wl/net/mac80211/cfg.c
@@ -395,6 +395,17 @@
return ret;
}
+static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
+ int idx, struct survey_info *survey)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (!local->ops->get_survey)
+ return -EOPNOTSUPP;
+
+ return drv_get_survey(local, idx, survey);
+}
+
static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
u8 *mac, struct station_info *sinfo)
{
@@ -1375,6 +1386,7 @@
.change_station = ieee80211_change_station,
.get_station = ieee80211_get_station,
.dump_station = ieee80211_dump_station,
+ .dump_survey = ieee80211_dump_survey,
#ifdef CONFIG_MAC80211_MESH
.add_mpath = ieee80211_add_mpath,
.del_mpath = ieee80211_del_mpath,
--- linux-wl.orig/net/mac80211/driver-ops.h
+++ linux-wl/net/mac80211/driver-ops.h
@@ -251,6 +251,15 @@
return ret;
}
+static inline int drv_get_survey(struct ieee80211_local *local, int idx,
+ struct survey_info *survey)
+{
+ int ret = -EOPNOTSUPP;
+ if (local->ops->conf_tx)
+ ret = local->ops->get_survey(&local->hw, idx, survey);
+ /* trace_drv_get_survey(local, idx, survey, ret); */
+ return ret;
+}
static inline void drv_rfkill_poll(struct ieee80211_local *local)
{
--- linux-wl.orig/drivers/net/wireless/mac80211_hwsim.c
+++ linux-wl/drivers/net/wireless/mac80211_hwsim.c
@@ -759,6 +759,28 @@
return 0;
}
+static int mac80211_hwsim_get_survey(
+ struct ieee80211_hw *hw, int idx,
+ struct survey_info *survey)
+{
+ struct ieee80211_conf *conf = &hw->conf;
+
+ printk(KERN_DEBUG "%s:%s (idx=%d)\n",
+ wiphy_name(hw->wiphy), __func__, idx);
+
+ if (idx != 0)
+ return -ENOENT;
+
+ /* Current channel */
+ survey->channel = conf->channel;
+
+ /* Magically conjured noise level */
+ survey->filled = SURVEY_INFO_NOISE_DBM;
+ survey->noise = -92;
+
+ return 0;
+}
+
#ifdef CONFIG_NL80211_TESTMODE
/*
* This section contains example code for using netlink
@@ -840,6 +862,7 @@
.sta_notify = mac80211_hwsim_sta_notify,
.set_tim = mac80211_hwsim_set_tim,
.conf_tx = mac80211_hwsim_conf_tx,
+ .get_survey = mac80211_hwsim_get_survey,
CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
};
--
http://www.holgerschurig.de
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