John,
Please "DO NOT" apply this patch, it will cause IBSS mode not working
Thanks
Wey
Subject: [PATCH 04/11] iwlagn: handle GO powersave
From: Johannes Berg <johannes.berg@xxxxxxxxx>
In order to implement support for GO powersave on
the P2P client side, the ucode needs to know what
GO we're trying to authenticate/associate with,
it needs to have a station entry and the BSSID in
the RXON set.
Implement the new mac80211 callbacks to give this
data to the device.
Since this is also useful for the device when a
normal connection is established, also program it
with the information in that case.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-agn-rxon.c | 7 ++-
drivers/net/wireless/iwlwifi/iwl-agn.c | 68 +++++++++++++++++++++++++++
drivers/net/wireless/iwlwifi/iwl-dev.h | 3 +
3 files changed, 76 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
index d42ef17..1428bcf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -434,6 +434,10 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
if (!ctx->is_active)
return 0;
+ /* override BSSID if necessary due to preauth */
+ if (ctx->preauth_bssid)
+ memcpy(ctx->staging.bssid_addr, ctx->bssid, ETH_ALEN);
+
/* always get timestamp with Rx frame */
ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
@@ -883,8 +887,6 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
else
ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
- memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
-
if (vif->type == NL80211_IFTYPE_AP ||
vif->type == NL80211_IFTYPE_ADHOC) {
if (vif->bss_conf.enable_beacon) {
@@ -912,6 +914,7 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
if (!priv->disable_chain_noise_cal)
iwlagn_chain_noise_reset(priv);
priv->start_calib = 1;
+ WARN_ON(ctx->preauth_bssid);
}
if (changes & BSS_CHANGED_IBSS) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 4b666b7..bb16726 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3283,6 +3283,72 @@ static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
return 0;
}
+static int iwl_mac_tx_sync(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ const u8 *bssid, enum ieee80211_tx_sync_type type)
+{
+ struct iwl_priv *priv = hw->priv;
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
+ struct iwl_rxon_context *ctx = vif_priv->ctx;
+ int ret;
+ u8 sta_id;
+
+ mutex_lock(&priv->mutex);
+
+ if (iwl_is_associated_ctx(ctx)) {
+ ret = 0;
+ goto out;
+ }
+
+ if (ctx->preauth_bssid || test_bit(STATUS_SCAN_HW, &priv->status)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ ret = iwl_add_station_common(priv, ctx, bssid, true, NULL, &sta_id);
+ if (ret)
+ goto out;
+
+ if (WARN_ON(sta_id != ctx->ap_sta_id)) {
+ ret = -EIO;
+ goto out_remove_sta;
+ }
+
+ memcpy(ctx->bssid, bssid, ETH_ALEN);
+ ctx->preauth_bssid = true;
+
+ ret = iwlagn_commit_rxon(priv, ctx);
+
+ if (ret == 0)
+ goto out;
+
+ out_remove_sta:
+ iwl_remove_station(priv, sta_id, bssid);
+ out:
+ mutex_unlock(&priv->mutex);
+ return ret;
+}
+
+static void iwl_mac_finish_tx_sync(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ const u8 *bssid,
+ enum ieee80211_tx_sync_type type)
+{
+ struct iwl_priv *priv = hw->priv;
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
+ struct iwl_rxon_context *ctx = vif_priv->ctx;
+
+ mutex_lock(&priv->mutex);
+
+ if (iwl_is_associated_ctx(ctx))
+ goto out;
+
+ iwl_remove_station(priv, ctx->ap_sta_id, bssid);
+ ctx->preauth_bssid = false;
+ /* no need to commit */
+ out:
+ mutex_unlock(&priv->mutex);
+}
+
/*****************************************************************************
*
* driver setup and teardown
@@ -3488,6 +3554,8 @@ struct ieee80211_ops iwlagn_hw_ops = {
.rssi_callback = iwl_mac_rssi_callback,
CFG80211_TESTMODE_CMD(iwl_testmode_cmd)
CFG80211_TESTMODE_DUMP(iwl_testmode_dump)
+ .tx_sync = iwl_mac_tx_sync,
+ .finish_tx_sync = iwl_mac_finish_tx_sync,
};
static u32 iwl_hw_detect(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 287f478..4349782 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1125,6 +1125,9 @@ struct iwl_rxon_context {
const u8 *ac_to_queue;
u8 mcast_queue;
+ u8 bssid[ETH_ALEN];
+ bool preauth_bssid;
+
/*
* We could use the vif to indicate active, but we
* also need it to be active during disabling when
--
1.7.0.4
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