/******************************************************************************
*
- * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
#include <linux/skbuff.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
-#include <net/ieee80211.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/workqueue.h>
-#include "../net/mac80211/ieee80211_rate.h"
+#include "../net/mac80211/rate.h"
#include "iwl-3945.h"
{-89, IWL_RATE_6M_INDEX}
};
-static struct iwl3945_tpt_entry iwl3945_tpt_table_b[] = {
- {-86, IWL_RATE_11M_INDEX},
- {-88, IWL_RATE_5M_INDEX},
- {-90, IWL_RATE_2M_INDEX},
- {-92, IWL_RATE_1M_INDEX}
-
-};
-
static struct iwl3945_tpt_entry iwl3945_tpt_table_g[] = {
{-60, IWL_RATE_54M_INDEX},
{-64, IWL_RATE_48M_INDEX},
#define IWL_RATE_MIN_SUCCESS_TH 8
#define IWL_RATE_DECREASE_TH 1920
-static u8 iwl3945_get_rate_index_by_rssi(s32 rssi, u8 mode)
+static u8 iwl3945_get_rate_index_by_rssi(s32 rssi, enum ieee80211_band band)
{
u32 index = 0;
u32 table_size = 0;
if ((rssi < IWL_MIN_RSSI_VAL) || (rssi > IWL_MAX_RSSI_VAL))
rssi = IWL_MIN_RSSI_VAL;
- switch (mode) {
- case MODE_IEEE80211G:
+ switch (band) {
+ case IEEE80211_BAND_2GHZ:
tpt_table = iwl3945_tpt_table_g;
table_size = ARRAY_SIZE(iwl3945_tpt_table_g);
break;
- case MODE_IEEE80211A:
+ case IEEE80211_BAND_5GHZ:
tpt_table = iwl3945_tpt_table_a;
table_size = ARRAY_SIZE(iwl3945_tpt_table_a);
break;
default:
- case MODE_IEEE80211B:
- tpt_table = iwl3945_tpt_table_b;
- table_size = ARRAY_SIZE(iwl3945_tpt_table_b);
+ BUG();
break;
}
{
window->data = 0;
window->success_counter = 0;
- window->success_ratio = IWL_INVALID_VALUE;
+ window->success_ratio = -1;
window->counter = 0;
- window->average_tpt = IWL_INVALID_VALUE;
+ window->average_tpt = IWL_INV_TPT;
window->stamp = 0;
}
* after assoc.. */
for (i = IWL_RATE_COUNT - 1; i >= 0; i--) {
- if (sta->supp_rates & (1 << i)) {
- sta->txrate = i;
+ if (sta->supp_rates[local->hw.conf.channel->band] & (1 << i)) {
+ sta->txrate_idx = i;
break;
}
}
- sta->last_txrate = sta->txrate;
+ sta->last_txrate_idx = sta->txrate_idx;
- /* For MODE_IEEE80211A mode it start at IWL_FIRST_OFDM_RATE */
- if (local->hw.conf.phymode == MODE_IEEE80211A)
- sta->last_txrate += IWL_FIRST_OFDM_RATE;
+ /* For 5 GHz band it start at IWL_FIRST_OFDM_RATE */
+ if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
+ sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
IWL_DEBUG_RATE("leave\n");
}
{
int next_rate = iwl3945_get_prev_ieee_rate(rate);
- switch (priv->phymode) {
- case MODE_IEEE80211A:
+ switch (priv->band) {
+ case IEEE80211_BAND_5GHZ:
if (rate == IWL_RATE_12M_INDEX)
next_rate = IWL_RATE_9M_INDEX;
else if (rate == IWL_RATE_6M_INDEX)
next_rate = IWL_RATE_6M_INDEX;
break;
+/* XXX cannot be invoked in current mac80211 so not a regression
case MODE_IEEE80211B:
if (rate == IWL_RATE_11M_INDEX_TABLE)
next_rate = IWL_RATE_5M_INDEX_TABLE;
break;
+ */
default:
break;
}
struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct iwl3945_rs_sta *rs_sta;
+ struct ieee80211_supported_band *sband;
IWL_DEBUG_RATE("enter\n");
- retries = tx_resp->retry_count;
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- first_index = tx_resp->control.tx_rate;
+
+ retries = tx_resp->retry_count;
+ first_index = tx_resp->control.tx_rate->hw_value;
if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) {
- IWL_DEBUG_RATE("leave: Rate out of bounds: %0x for %d\n",
- tx_resp->control.tx_rate, first_index);
+ IWL_DEBUG_RATE("leave: Rate out of bounds: %d\n", first_index);
return;
}
+ rcu_read_lock();
+
sta = sta_info_get(local, hdr->addr1);
if (!sta || !sta->rate_ctrl_priv) {
- if (sta)
- sta_info_put(sta);
+ rcu_read_unlock();
IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
return;
}
spin_unlock_irqrestore(&rs_sta->lock, flags);
- sta_info_put(sta);
+ rcu_read_unlock();
IWL_DEBUG_RATE("leave\n");
}
static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta,
- u8 index, u16 rate_mask, int phymode)
+ u8 index, u16 rate_mask, enum ieee80211_band band)
{
u8 high = IWL_RATE_INVALID;
u8 low = IWL_RATE_INVALID;
/* 802.11A walks to the next literal adjacent rate in
* the rate table */
- if (unlikely(phymode == MODE_IEEE80211A)) {
+ if (unlikely(band == IEEE80211_BAND_5GHZ)) {
int i;
u32 mask;
*
*/
static void rs_get_rate(void *priv_rate, struct net_device *dev,
- struct ieee80211_hw_mode *mode, struct sk_buff *skb,
+ struct ieee80211_supported_band *sband,
+ struct sk_buff *skb,
struct rate_selection *sel)
{
u8 low = IWL_RATE_INVALID;
int index;
struct iwl3945_rs_sta *rs_sta;
struct iwl3945_rate_scale_data *window = NULL;
- int current_tpt = IWL_INVALID_VALUE;
- int low_tpt = IWL_INVALID_VALUE;
- int high_tpt = IWL_INVALID_VALUE;
+ int current_tpt = IWL_INV_TPT;
+ int low_tpt = IWL_INV_TPT;
+ int high_tpt = IWL_INV_TPT;
u32 fail_count;
s8 scale_action = 0;
unsigned long flags;
IWL_DEBUG_RATE("enter\n");
+ rcu_read_lock();
+
sta = sta_info_get(local, hdr->addr1);
/* Send management frames and broadcast/multicast data using lowest
is_multicast_ether_addr(hdr->addr1) ||
!sta || !sta->rate_ctrl_priv) {
IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
- sel->rate = rate_lowest(local, local->oper_hw_mode, sta);
- if (sta)
- sta_info_put(sta);
+ sel->rate = rate_lowest(local, sband, sta);
+ rcu_read_unlock();
return;
}
- rate_mask = sta->supp_rates;
- index = min(sta->last_txrate & 0xffff, IWL_RATE_COUNT - 1);
+ rate_mask = sta->supp_rates[sband->band];
+ index = min(sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT - 1);
- if (priv->phymode == (u8) MODE_IEEE80211A)
+ if (sband->band == IEEE80211_BAND_5GHZ)
rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
rs_sta = (void *)sta->rate_ctrl_priv;
if (((fail_count <= IWL_RATE_MIN_FAILURE_TH) &&
(window->success_counter < IWL_RATE_MIN_SUCCESS_TH))) {
- window->average_tpt = IWL_INVALID_VALUE;
+ window->average_tpt = IWL_INV_TPT;
spin_unlock_irqrestore(&rs_sta->lock, flags);
IWL_DEBUG_RATE("Invalid average_tpt on rate %d: "
current_tpt = window->average_tpt;
high_low = iwl3945_get_adjacent_rate(rs_sta, index, rate_mask,
- local->hw.conf.phymode);
+ sband->band);
low = high_low & 0xff;
high = (high_low >> 8) & 0xff;
if ((window->success_ratio < IWL_RATE_DECREASE_TH) || !current_tpt) {
IWL_DEBUG_RATE("decrease rate because of low success_ratio\n");
scale_action = -1;
- } else if ((low_tpt == IWL_INVALID_VALUE) &&
- (high_tpt == IWL_INVALID_VALUE))
+ } else if ((low_tpt == IWL_INV_TPT) && (high_tpt == IWL_INV_TPT))
scale_action = 1;
- else if ((low_tpt != IWL_INVALID_VALUE) &&
- (high_tpt != IWL_INVALID_VALUE)
- && (low_tpt < current_tpt)
- && (high_tpt < current_tpt)) {
+ else if ((low_tpt != IWL_INV_TPT) && (high_tpt != IWL_INV_TPT) &&
+ (low_tpt < current_tpt) && (high_tpt < current_tpt)) {
IWL_DEBUG_RATE("No action -- low [%d] & high [%d] < "
"current_tpt [%d]\n",
low_tpt, high_tpt, current_tpt);
scale_action = 0;
} else {
- if (high_tpt != IWL_INVALID_VALUE) {
+ if (high_tpt != IWL_INV_TPT) {
if (high_tpt > current_tpt)
scale_action = 1;
else {
("decrease rate because of high tpt\n");
scale_action = -1;
}
- } else if (low_tpt != IWL_INVALID_VALUE) {
+ } else if (low_tpt != IWL_INV_TPT) {
if (low_tpt > current_tpt) {
IWL_DEBUG_RATE
("decrease rate because of low tpt\n");
out:
- sta->last_txrate = index;
- if (priv->phymode == (u8) MODE_IEEE80211A)
- sta->txrate = sta->last_txrate - IWL_FIRST_OFDM_RATE;
+ sta->last_txrate_idx = index;
+ if (sband->band == IEEE80211_BAND_5GHZ)
+ sta->txrate_idx = sta->last_txrate_idx - IWL_FIRST_OFDM_RATE;
else
- sta->txrate = sta->last_txrate;
+ sta->txrate_idx = sta->last_txrate_idx;
- sta_info_put(sta);
+ rcu_read_unlock();
IWL_DEBUG_RATE("leave: %d\n", index);
- sel->rate = &priv->ieee_rates[index];
+ sel->rate = &sband->bitrates[sta->txrate_idx];
}
static struct rate_control_ops rs_ops = {
unsigned long now = jiffies;
u32 max_time = 0;
+ rcu_read_lock();
+
sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
if (!sta || !sta->rate_ctrl_priv) {
- if (sta) {
- sta_info_put(sta);
+ if (sta)
IWL_DEBUG_RATE("leave - no private rate data!\n");
- } else
+ else
IWL_DEBUG_RATE("leave - no station!\n");
+ rcu_read_unlock();
return sprintf(buf, "station %d not found\n", sta_id);
}
i = j;
}
spin_unlock_irqrestore(&rs_sta->lock, flags);
- sta_info_put(sta);
+ rcu_read_unlock();
/* Display the average rate of all samples taken.
*
return;
}
+ rcu_read_lock();
+
sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
if (!sta || !sta->rate_ctrl_priv) {
- if (sta)
- sta_info_put(sta);
IWL_DEBUG_RATE("leave - no private rate data!\n");
+ rcu_read_unlock();
return;
}
spin_lock_irqsave(&rs_sta->lock, flags);
rs_sta->tgg = 0;
- switch (priv->phymode) {
- case MODE_IEEE80211G:
+ switch (priv->band) {
+ case IEEE80211_BAND_2GHZ:
+ /* TODO: this always does G, not a regression */
if (priv->active_rxon.flags & RXON_FLG_TGG_PROTECT_MSK) {
rs_sta->tgg = 1;
rs_sta->expected_tpt = iwl3945_expected_tpt_g_prot;
rs_sta->expected_tpt = iwl3945_expected_tpt_g;
break;
- case MODE_IEEE80211A:
+ case IEEE80211_BAND_5GHZ:
rs_sta->expected_tpt = iwl3945_expected_tpt_a;
break;
-
- default:
- IWL_WARNING("Invalid phymode. Defaulting to 802.11b\n");
- case MODE_IEEE80211B:
- rs_sta->expected_tpt = iwl3945_expected_tpt_b;
+ case IEEE80211_NUM_BANDS:
+ BUG();
break;
}
- sta_info_put(sta);
+ rcu_read_unlock();
spin_unlock_irqrestore(&rs_sta->lock, flags);
rssi = priv->last_rx_rssi;
IWL_DEBUG(IWL_DL_INFO | IWL_DL_RATE, "Network RSSI: %d\n", rssi);
- rs_sta->start_rate =
- iwl3945_get_rate_index_by_rssi(rssi, priv->phymode);
+ rs_sta->start_rate = iwl3945_get_rate_index_by_rssi(rssi, priv->band);
IWL_DEBUG_RATE("leave: rssi %d assign rate index: "
"%d (plcp 0x%x)\n", rssi, rs_sta->start_rate,
iwl3945_rates[rs_sta->start_rate].plcp);
}
-void iwl3945_rate_control_register(struct ieee80211_hw *hw)
+int iwl3945_rate_control_register(void)
{
- ieee80211_rate_control_register(&rs_ops);
+ return ieee80211_rate_control_register(&rs_ops);
}
-void iwl3945_rate_control_unregister(struct ieee80211_hw *hw)
+void iwl3945_rate_control_unregister(void)
{
ieee80211_rate_control_unregister(&rs_ops);
}
projects / linux-2.6-omap-h63xx.git / blobdiff