[PATCH 24/27] iwlwifi: pass context to iwl_send_rxon_timing

Wey-Yi Guy
2010-08-27T16:56:56Z

Sometimes we need to send RXON timing even
when we don't have a virtual interface yet,
so pass the context and allow passing one
without a virtual interface pointer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
---
drivers/net/wireless/iwlwifi/iwl-agn.c | 8 +++-----
drivers/net/wireless/iwlwifi/iwl-core.c | 20 +++++++++-----------
drivers/net/wireless/iwlwifi/iwl-core.h | 2 +-
drivers/net/wireless/iwlwifi/iwl3945-base.c | 4 ++--
4 files changed, 15 insertions(+), 19 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index f2884b5..85eea94 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -183,14 +183,12 @@ int iwl_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
iwl_set_rxon_hwcrypto(priv, ctx, !priv->cfg->mod_params->sw_crypto);

if (new_assoc) {
- if (WARN_ON(!ctx->vif))
- return -EINVAL;
/*
* First of all, before setting associated, we need to
* send RXON timing so the device knows about the DTIM
* period and other timing values
*/
- ret = iwl_send_rxon_timing(priv, ctx->vif);
+ ret = iwl_send_rxon_timing(priv, ctx);
if (ret) {
IWL_ERR(priv, "Error setting RXON timing!\n");
return ret;
@@ -3296,7 +3294,7 @@ void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif)
ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwlcore_commit_rxon(priv, ctx);

- ret = iwl_send_rxon_timing(priv, vif);
+ ret = iwl_send_rxon_timing(priv, ctx);
if (ret)
IWL_WARN(priv, "RXON timing - "
"Attempting to continue.\n");
@@ -3536,7 +3534,7 @@ void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif)
iwlcore_commit_rxon(priv, ctx);

/* RXON Timing */
- ret = iwl_send_rxon_timing(priv, vif);
+ ret = iwl_send_rxon_timing(priv, ctx);
if (ret)
IWL_WARN(priv, "RXON timing failed - "
"Attempting to continue.\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index b61b838..91ca517 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -500,13 +500,13 @@ static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
return new_val;
}

-int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif)
+int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{
u64 tsf;
s32 interval_tm, rem;
struct ieee80211_conf *conf = NULL;
u16 beacon_int;
- struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
+ struct ieee80211_vif *vif = ctx->vif;

conf = ieee80211_get_hw_conf(priv->hw);

@@ -517,15 +517,13 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif)
ctx->timing.timestamp = cpu_to_le64(priv->timestamp);
ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval);

- beacon_int = vif->bss_conf.beacon_int;
+ beacon_int = vif ? vif->bss_conf.beacon_int : 0;

- if (vif->type == NL80211_IFTYPE_ADHOC) {
- /* TODO: we need to get atim_window from upper stack
- * for now we set to 0 */
- ctx->timing.atim_window = 0;
- } else {
- ctx->timing.atim_window = 0;
- }
+ /*
+ * TODO: For IBSS we need to get atim_window from mac80211,
+ * for now just always use 0
+ */
+ ctx->timing.atim_window = 0;

beacon_int = iwl_adjust_beacon_interval(beacon_int,
priv->hw_params.max_beacon_itrvl * TIME_UNIT);
@@ -536,7 +534,7 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif)
rem = do_div(tsf, interval_tm);
ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem);

- ctx->timing.dtim_period = vif->bss_conf.dtim_period;
+ ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1;

IWL_DEBUG_ASSOC(priv,
"beacon interval %d beacon timer %d beacon tim %d\n",
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index ab465c5..4d79100 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -728,7 +728,7 @@ extern int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
void iwl_apm_stop(struct iwl_priv *priv);
int iwl_apm_init(struct iwl_priv *priv);

-int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif);
+int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
{
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index e81c438..76a45b2 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3110,7 +3110,7 @@ void iwl3945_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif)
ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwlcore_commit_rxon(priv, ctx);

- rc = iwl_send_rxon_timing(priv, vif);
+ rc = iwl_send_rxon_timing(priv, ctx);
if (rc)
IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
"Attempting to continue.\n");
@@ -3285,7 +3285,7 @@ void iwl3945_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif)
iwlcore_commit_rxon(priv, ctx);

/* RXON Timing */
- rc = iwl_send_rxon_timing(priv, vif);
+ rc = iwl_send_rxon_timing(priv, ctx);
if (rc)
IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
"Attempting to continue.\n");
--
1.7.0.4