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iwl3945: Use iwl-agn-rs.h rates definitions. 

A lot of rate relates definition are shared between iwl-3945-rs.h and
iwl-agn-rs.h. Let's just use the agn version, and add the 3945 specific
constants there.

Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Samuel Ortiz 2008-12-19 10:37:12 +08:00 committed by John W. Linville
parent 250bdd216c
commit d9829a67f9
6 changed files with 80 additions and 234 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
drivers/net/wireless/iwlwifi/iwl-3945-rs.c
View File

@ -64,7 +64,7 @@ struct iwl3945_rs_sta {
u8 start_rate;
u8 ibss_sta_added;
struct timer_list rate_scale_flush;
struct iwl3945_rate_scale_data win[IWL_RATE_COUNT];
struct iwl3945_rate_scale_data win[IWL_RATE_COUNT_3945];
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *rs_sta_dbgfs_stats_table_file;
#endif
@ -73,19 +73,19 @@ struct iwl3945_rs_sta {
int last_txrate_idx;
};
static s32 iwl3945_expected_tpt_g[IWL_RATE_COUNT] = {
static s32 iwl3945_expected_tpt_g[IWL_RATE_COUNT_3945] = {
7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202
};
static s32 iwl3945_expected_tpt_g_prot[IWL_RATE_COUNT] = {
static s32 iwl3945_expected_tpt_g_prot[IWL_RATE_COUNT_3945] = {
7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125
};
static s32 iwl3945_expected_tpt_a[IWL_RATE_COUNT] = {
static s32 iwl3945_expected_tpt_a[IWL_RATE_COUNT_3945] = {
0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186
};
static s32 iwl3945_expected_tpt_b[IWL_RATE_COUNT] = {
static s32 iwl3945_expected_tpt_b[IWL_RATE_COUNT_3945] = {
7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0
};
@ -121,7 +121,7 @@ static struct iwl3945_tpt_entry iwl3945_tpt_table_g[] = {
#define IWL_RATE_MAX_WINDOW 62
#define IWL_RATE_FLUSH (3*HZ)
#define IWL_RATE_WIN_FLUSH (HZ/2)
#define IWL_RATE_HIGH_TH 11520
#define IWL39_RATE_HIGH_TH 11520
#define IWL_SUCCESS_UP_TH 8960
#define IWL_SUCCESS_DOWN_TH 10880
#define IWL_RATE_MIN_FAILURE_TH 8
@ -167,7 +167,7 @@ static void iwl3945_clear_window(struct iwl3945_rate_scale_data *window)
window->success_counter = 0;
window->success_ratio = -1;
window->counter = 0;
window->average_tpt = IWL_INV_TPT;
window->average_tpt = IWL_INVALID_VALUE;
window->stamp = 0;
}
@ -190,7 +190,7 @@ static int iwl3945_rate_scale_flush_windows(struct iwl3945_rs_sta *rs_sta)
* and it has been more than IWL_RATE_WIN_FLUSH
* since we flushed, clear out the gathered statistics
*/
for (i = 0; i < IWL_RATE_COUNT; i++) {
for (i = 0; i < IWL_RATE_COUNT_3945; i++) {
if (!rs_sta->win[i].counter)
continue;
@ -334,7 +334,7 @@ static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta,
window->average_tpt = ((window->success_ratio *
rs_sta->expected_tpt[index] + 64) / 128);
else
window->average_tpt = IWL_INV_TPT;
window->average_tpt = IWL_INVALID_VALUE;
spin_unlock_irqrestore(&rs_sta->lock, flags);
@ -425,7 +425,7 @@ static void *rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp)
rs_sta->rate_scale_flush.data = (unsigned long)rs_sta;
rs_sta->rate_scale_flush.function = &iwl3945_bg_rate_scale_flush;
for (i = 0; i < IWL_RATE_COUNT; i++)
for (i = 0; i < IWL_RATE_COUNT_3945; i++)
iwl3945_clear_window(&rs_sta->win[i]);
IWL_DEBUG_RATE("leave\n");
@ -471,7 +471,7 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband
retries = info->status.rates[0].count;
first_index = sband->bitrates[info->status.rates[0].idx].hw_value;
if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) {
if ((first_index < 0) || (first_index >= IWL_RATE_COUNT_3945)) {
IWL_DEBUG_RATE("leave: Rate out of bounds: %d\n", first_index);
return;
}
@ -575,7 +575,8 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta,
/* Find the next rate that is in the rate mask */
i = index + 1;
for (mask = (1 << i); i < IWL_RATE_COUNT; i++, mask <<= 1) {
for (mask = (1 << i); i < IWL_RATE_COUNT_3945;
i++, mask <<= 1) {
if (rate_mask & mask) {
high = i;
break;
@ -641,9 +642,9 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
int index;
struct iwl3945_rs_sta *rs_sta = priv_sta;
struct iwl3945_rate_scale_data *window = NULL;
int current_tpt = IWL_INV_TPT;
int low_tpt = IWL_INV_TPT;
int high_tpt = IWL_INV_TPT;
int current_tpt = IWL_INVALID_VALUE;
int low_tpt = IWL_INVALID_VALUE;
int high_tpt = IWL_INVALID_VALUE;
u32 fail_count;
s8 scale_action = 0;
unsigned long flags;
@ -674,7 +675,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
return;
}
index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT - 1);
index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT_3945 - 1);
if (sband->band == IEEE80211_BAND_5GHZ)
rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
@ -744,16 +745,18 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
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_INV_TPT) && (high_tpt == IWL_INV_TPT))
} else if ((low_tpt == IWL_INVALID_VALUE) &&
(high_tpt == IWL_INVALID_VALUE))
scale_action = 1;
else if ((low_tpt != IWL_INV_TPT) && (high_tpt != IWL_INV_TPT) &&
else if ((low_tpt != IWL_INVALID_VALUE) &&
(high_tpt != IWL_INVALID_VALUE) &&
(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_INV_TPT) {
if (high_tpt != IWL_INVALID_VALUE) {
if (high_tpt > current_tpt)
scale_action = 1;
else {
@ -761,7 +764,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
("decrease rate because of high tpt\n");
scale_action = -1;
}
} else if (low_tpt != IWL_INV_TPT) {
} else if (low_tpt != IWL_INVALID_VALUE) {
if (low_tpt > current_tpt) {
IWL_DEBUG_RATE
("decrease rate because of low tpt\n");
@ -835,7 +838,7 @@ static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file,
lq_sta->tx_packets,
lq_sta->last_txrate_idx,
lq_sta->start_rate, jiffies_to_msecs(lq_sta->flush_time));
for (j = 0; j < IWL_RATE_COUNT; j++) {
for (j = 0; j < IWL_RATE_COUNT_3945; j++) {
desc += sprintf(buff+desc,
"counter=%d success=%d %%=%d\n",
lq_sta->win[j].counter,

206
drivers/net/wireless/iwlwifi/iwl-3945-rs.h
View File

@ -1,206 +0,0 @@
/******************************************************************************
*
* 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
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_3945_rs_h__
#define __iwl_3945_rs_h__
struct iwl3945_rate_info {
u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
u8 prev_rs; /* previous rate used in rs algo */
u8 next_rs; /* next rate used in rs algo */
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
u8 next_rs_tgg; /* next rate used in TGG rs algo */
u8 table_rs_index; /* index in rate scale table cmd */
u8 prev_table_rs; /* prev in rate table cmd */
};
/*
* These serve as indexes into
* struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT];
*/
enum {
IWL_RATE_1M_INDEX = 0,
IWL_RATE_2M_INDEX,
IWL_RATE_5M_INDEX,
IWL_RATE_11M_INDEX,
IWL_RATE_6M_INDEX,
IWL_RATE_9M_INDEX,
IWL_RATE_12M_INDEX,
IWL_RATE_18M_INDEX,
IWL_RATE_24M_INDEX,
IWL_RATE_36M_INDEX,
IWL_RATE_48M_INDEX,
IWL_RATE_54M_INDEX,
IWL_RATE_COUNT,
IWL_RATE_INVM_INDEX,
IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
};
enum {
IWL_RATE_6M_INDEX_TABLE = 0,
IWL_RATE_9M_INDEX_TABLE,
IWL_RATE_12M_INDEX_TABLE,
IWL_RATE_18M_INDEX_TABLE,
IWL_RATE_24M_INDEX_TABLE,
IWL_RATE_36M_INDEX_TABLE,
IWL_RATE_48M_INDEX_TABLE,
IWL_RATE_54M_INDEX_TABLE,
IWL_RATE_1M_INDEX_TABLE,
IWL_RATE_2M_INDEX_TABLE,
IWL_RATE_5M_INDEX_TABLE,
IWL_RATE_11M_INDEX_TABLE,
IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX,
};
enum {
IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
IWL_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
};
/* #define vs. enum to keep from defaulting to 'large integer' */
#define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX)
#define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX)
#define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX)
#define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX)
#define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX)
#define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX)
#define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX)
#define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX)
#define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX)
#define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX)
#define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX)
#define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX)
/* 3945 uCode API values for (legacy) bit rates, both OFDM and CCK */
enum {
IWL_RATE_6M_PLCP = 13,
IWL_RATE_9M_PLCP = 15,
IWL_RATE_12M_PLCP = 5,
IWL_RATE_18M_PLCP = 7,
IWL_RATE_24M_PLCP = 9,
IWL_RATE_36M_PLCP = 11,
IWL_RATE_48M_PLCP = 1,
IWL_RATE_54M_PLCP = 3,
IWL_RATE_1M_PLCP = 10,
IWL_RATE_2M_PLCP = 20,
IWL_RATE_5M_PLCP = 55,
IWL_RATE_11M_PLCP = 110,
};
/* MAC header values for bit rates */
enum {
IWL_RATE_6M_IEEE = 12,
IWL_RATE_9M_IEEE = 18,
IWL_RATE_12M_IEEE = 24,
IWL_RATE_18M_IEEE = 36,
IWL_RATE_24M_IEEE = 48,
IWL_RATE_36M_IEEE = 72,
IWL_RATE_48M_IEEE = 96,
IWL_RATE_54M_IEEE = 108,
IWL_RATE_1M_IEEE = 2,
IWL_RATE_2M_IEEE = 4,
IWL_RATE_5M_IEEE = 11,
IWL_RATE_11M_IEEE = 22,
};
#define IWL_CCK_BASIC_RATES_MASK \
(IWL_RATE_1M_MASK | \
IWL_RATE_2M_MASK)
#define IWL_CCK_RATES_MASK \
(IWL_BASIC_RATES_MASK | \
IWL_RATE_5M_MASK | \
IWL_RATE_11M_MASK)
#define IWL_OFDM_BASIC_RATES_MASK \
(IWL_RATE_6M_MASK | \
IWL_RATE_12M_MASK | \
IWL_RATE_24M_MASK)
#define IWL_OFDM_RATES_MASK \
(IWL_OFDM_BASIC_RATES_MASK | \
IWL_RATE_9M_MASK | \
IWL_RATE_18M_MASK | \
IWL_RATE_36M_MASK | \
IWL_RATE_48M_MASK | \
IWL_RATE_54M_MASK)
#define IWL_BASIC_RATES_MASK \
(IWL_OFDM_BASIC_RATES_MASK | \
IWL_CCK_BASIC_RATES_MASK)
#define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1)
#define IWL_INV_TPT -1
#define IWL_MIN_RSSI_VAL -100
#define IWL_MAX_RSSI_VAL 0
extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT];
static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
{
u8 rate = iwl3945_rates[rate_index].prev_ieee;
if (rate == IWL_RATE_INVALID)
rate = rate_index;
return rate;
}
/**
* iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
*
* The specific throughput table used is based on the type of network
* the associated with, including A, B, G, and G w/ TGG protection
*/
extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
/**
* iwl3945_rate_control_register - Register the rate control algorithm callbacks
*
* Since the rate control algorithm is hardware specific, there is no need
* or reason to place it as a stand alone module. The driver can call
* iwl3945_rate_control_register in order to register the rate control callbacks
* with the mac80211 subsystem. This should be performed prior to calling
* ieee80211_register_hw
*
*/
extern int iwl3945_rate_control_register(void);
/**
* iwl3945_rate_control_unregister - Unregister the rate control callbacks
*
* This should be called after calling ieee80211_unregister_hw, but before
* the driver is unloaded.
*/
extern void iwl3945_rate_control_unregister(void);
#endif

6
drivers/net/wireless/iwlwifi/iwl-3945.c
View File

@ -43,7 +43,7 @@
#include "iwl-commands.h"
#include "iwl-3945.h"
#include "iwl-helpers.h"
#include "iwl-3945-rs.h"
#include "iwl-agn-rs.h"
#define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \
[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
@ -65,7 +65,7 @@
* maps to IWL_RATE_INVALID
*
*/
const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT] = {
const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945] = {
IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
@ -1700,7 +1700,7 @@ int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv)
/* fill cmd with power settings for all rates for current channel */
/* Fill OFDM rate */
for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0;
rate_idx <= IWL_LAST_OFDM_RATE; rate_idx++, i++) {
rate_idx <= IWL39_LAST_OFDM_RATE; rate_idx++, i++) {
txpower.power[i].tpc = ch_info->power_info[i].tpc;
txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;

2
drivers/net/wireless/iwlwifi/iwl-3945.h
View File

@ -233,7 +233,7 @@ struct iwl3945_clip_group {
const s8 clip_powers[IWL_MAX_RATES];
};
#include "iwl-3945-rs.h"
#include "iwl-agn-rs.h"
#define IWL_TX_FIFO_AC0 0
#define IWL_TX_FIFO_AC1 1

53
drivers/net/wireless/iwlwifi/iwl-agn-rs.h
View File

@ -27,8 +27,6 @@
#ifndef __iwl_agn_rs_h__
#define __iwl_agn_rs_h__
#include "iwl-dev.h"
struct iwl_rate_info {
u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
@ -43,6 +41,19 @@ struct iwl_rate_info {
u8 next_rs_tgg; /* next rate used in TGG rs algo */
};
struct iwl3945_rate_info {
u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
u8 prev_rs; /* previous rate used in rs algo */
u8 next_rs; /* next rate used in rs algo */
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
u8 next_rs_tgg; /* next rate used in TGG rs algo */
u8 table_rs_index; /* index in rate scale table cmd */
u8 prev_table_rs; /* prev in rate table cmd */
};
/*
* These serve as indexes into
* struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
@ -62,12 +73,30 @@ enum {
IWL_RATE_54M_INDEX,
IWL_RATE_60M_INDEX,
IWL_RATE_COUNT, /*FIXME:RS:change to IWL_RATE_INDEX_COUNT,*/
IWL_RATE_COUNT_3945 = IWL_RATE_COUNT - 1,
IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
IWL_RATE_INVALID = IWL_RATE_COUNT,
};
enum {
IWL_RATE_6M_INDEX_TABLE = 0,
IWL_RATE_9M_INDEX_TABLE,
IWL_RATE_12M_INDEX_TABLE,
IWL_RATE_18M_INDEX_TABLE,
IWL_RATE_24M_INDEX_TABLE,
IWL_RATE_36M_INDEX_TABLE,
IWL_RATE_48M_INDEX_TABLE,
IWL_RATE_54M_INDEX_TABLE,
IWL_RATE_1M_INDEX_TABLE,
IWL_RATE_2M_INDEX_TABLE,
IWL_RATE_5M_INDEX_TABLE,
IWL_RATE_11M_INDEX_TABLE,
IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX - 1,
};
enum {
IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
IWL39_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX,
IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
@ -248,6 +277,7 @@ enum {
#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945];
enum iwl_table_type {
LQ_NONE,
@ -303,6 +333,23 @@ static inline u8 iwl_get_prev_ieee_rate(u8 rate_index)
return rate;
}
static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
{
u8 rate = iwl3945_rates[rate_index].prev_ieee;
if (rate == IWL_RATE_INVALID)
rate = rate_index;
return rate;
}
/**
* iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
*
* The specific throughput table used is based on the type of network
* the associated with, including A, B, G, and G w/ TGG protection
*/
extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
/**
* iwl_rate_control_register - Register the rate control algorithm callbacks
*
@ -314,6 +361,7 @@ static inline u8 iwl_get_prev_ieee_rate(u8 rate_index)
*
*/
extern int iwlagn_rate_control_register(void);
extern int iwl3945_rate_control_register(void);
/**
* iwl_rate_control_unregister - Unregister the rate control callbacks
@ -322,5 +370,6 @@ extern int iwlagn_rate_control_register(void);
* the driver is unloaded.
*/
extern void iwlagn_rate_control_unregister(void);
extern void iwl3945_rate_control_unregister(void);
#endif /* __iwl_agn__rs__ */

2
drivers/net/wireless/iwlwifi/iwl3945-base.c
View File

@ -4843,7 +4843,7 @@ static void iwl3945_init_hw_rates(struct iwl3945_priv *priv,
rates[i].hw_value = i; /* Rate scaling will work on indexes */
rates[i].hw_value_short = i;
rates[i].flags = 0;
if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
/*
* If CCK != 1M then set short preamble rate flag.
*/