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iwlwifi: replace minimum slot time constant 

There are a number of places where the minimum
slot time is hardcoded to 20 TU, add a new
constant for that and use it everywhere.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Johannes Berg 2011-01-06 08:07:11 -08:00 committed by Wey-Yi Guy
parent 9b9190d968
commit 940739196c
3 changed files with 13 additions and 8 deletions
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14
drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c
View File

@ -308,7 +308,7 @@ static int iwlagn_set_pan_params(struct iwl_priv *priv)
if (priv->_agn.hw_roc_channel) {
/* both contexts must be used for this to happen */
slot1 = priv->_agn.hw_roc_duration;
slot0 = 20;
slot0 = IWL_MIN_SLOT_TIME;
} else if (ctx_bss->vif && ctx_pan->vif) {
int bcnint = ctx_pan->vif->bss_conf.beacon_int;
int dtim = ctx_pan->vif->bss_conf.dtim_period ?: 1;
@ -334,12 +334,12 @@ static int iwlagn_set_pan_params(struct iwl_priv *priv)
if (test_bit(STATUS_SCAN_HW, &priv->status) ||
(!ctx_bss->vif->bss_conf.idle &&
!ctx_bss->vif->bss_conf.assoc)) {
slot0 = dtim * bcnint * 3 - 20;
slot1 = 20;
slot0 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME;
slot1 = IWL_MIN_SLOT_TIME;
} else if (!ctx_pan->vif->bss_conf.idle &&
!ctx_pan->vif->bss_conf.assoc) {
slot1 = bcnint * 3 - 20;
slot0 = 20;
slot1 = bcnint * 3 - IWL_MIN_SLOT_TIME;
slot0 = IWL_MIN_SLOT_TIME;
}
} else if (ctx_pan->vif) {
slot0 = 0;
@ -348,8 +348,8 @@ static int iwlagn_set_pan_params(struct iwl_priv *priv)
slot1 = max_t(int, DEFAULT_BEACON_INTERVAL, slot1);
if (test_bit(STATUS_SCAN_HW, &priv->status)) {
slot0 = slot1 * 3 - 20;
slot1 = 20;
slot0 = slot1 * 3 - IWL_MIN_SLOT_TIME;
slot1 = IWL_MIN_SLOT_TIME;
}
}

2
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -3792,7 +3792,7 @@ static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw,
queue_delayed_work(priv->workqueue, &priv->_agn.hw_roc_work,
msecs_to_jiffies(duration + 20));
msleep(20);
msleep(IWL_MIN_SLOT_TIME); /* TU is almost ms */
ieee80211_ready_on_channel(priv->hw);
out:

5
drivers/net/wireless/iwlwifi/iwl-commands.h
View File

@ -4370,6 +4370,11 @@ int iwl_agn_check_rxon_cmd(struct iwl_priv *priv);
* REPLY_WIPAN_PARAMS = 0xb2 (Commands and Notification)
*/
/*
* Minimum slot time in TU
*/
#define IWL_MIN_SLOT_TIME 20
/**
* struct iwl_wipan_slot
* @width: Time in TU