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iwlagn: send simple LQ command for WoWLAN

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For some reason, WoWLAN doesn't always seem to
be happy with more advanced LQ commands. Since
we don't need them as we're not going to send
a lot of data, simply program the station with
the very simple default LQ command.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-10-10 07:26:54 -07:00 committed by John W. Linville
parent 164ae97eb5
commit c079166e1b
3 changed files with 25 additions and 11 deletions
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27
drivers/net/wireless/iwlwifi/iwl-agn-sta.c
View File

@ -35,22 +35,17 @@
#include "iwl-agn.h"
#include "iwl-trans.h"
static struct iwl_link_quality_cmd *
iwl_sta_alloc_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 sta_id)
void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
u8 sta_id, struct iwl_link_quality_cmd *link_cmd)
{
int i, r;
struct iwl_link_quality_cmd *link_cmd;
u32 rate_flags = 0;
__le32 rate_n_flags;
link_cmd = kzalloc(sizeof(struct iwl_link_quality_cmd), GFP_KERNEL);
if (!link_cmd) {
IWL_ERR(priv, "Unable to allocate memory for LQ cmd.\n");
return NULL;
}
lockdep_assert_held(&priv->shrd->mutex);
memset(link_cmd, 0, sizeof(*link_cmd));
/* Set up the rate scaling to start at selected rate, fall back
* all the way down to 1M in IEEE order, and then spin on 1M */
if (priv->band == IEEE80211_BAND_5GHZ)
@ -87,6 +82,20 @@ iwl_sta_alloc_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 sta_id)
cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
link_cmd->sta_id = sta_id;
}
static struct iwl_link_quality_cmd *
iwl_sta_alloc_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 sta_id)
{
struct iwl_link_quality_cmd *link_cmd;
link_cmd = kzalloc(sizeof(struct iwl_link_quality_cmd), GFP_KERNEL);
if (!link_cmd) {
IWL_ERR(priv, "Unable to allocate memory for LQ cmd.\n");
return NULL;
}
iwl_sta_fill_lq(priv, ctx, sta_id, link_cmd);
return link_cmd;
}

3
drivers/net/wireless/iwlwifi/iwl-sta.c
View File

@ -595,6 +595,9 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
sizeof(struct iwl_addsta_cmd));
send_lq = false;
if (priv->stations[i].lq) {
if (priv->shrd->wowlan)
iwl_sta_fill_lq(priv, ctx, i, &lq);
else
memcpy(&lq, priv->stations[i].lq,
sizeof(struct iwl_link_quality_cmd));
send_lq = true;

2
drivers/net/wireless/iwlwifi/iwl-sta.h
View File

@ -58,6 +58,8 @@ int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
const u8 *addr, bool is_ap, struct ieee80211_sta *sta);
void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
u8 sta_id, struct iwl_link_quality_cmd *link_cmd);
int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
struct iwl_link_quality_cmd *lq, u8 flags, bool init);
void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx);