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/******************************************************************************
*
* Copyright(c) 2003 - 2007 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:
* James P. Ketrenos <ipw2100-admin@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_4965_rs_h__
#define __iwl_4965_rs_h__
#include "iwl-4965.h"
struct iwl_rate_info {
u8 plcp;
u8 plcp_siso;
u8 plcp_mimo;
u8 ieee;
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 */
};
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_60M_INDEX,
IWL_RATE_COUNT,
IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
};
enum {
IWL_FIRST_OFDM_RATE = IWL_RATE_6M_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,
};
/* #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_60M_MASK (1<<IWL_RATE_60M_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)
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_60M_PLCP = 3,
IWL_RATE_1M_PLCP = 10,
IWL_RATE_2M_PLCP = 20,
IWL_RATE_5M_PLCP = 55,
IWL_RATE_11M_PLCP = 110,
};
/* OFDM HT rate plcp */
enum {
IWL_RATE_SISO_6M_PLCP = 0,
IWL_RATE_SISO_12M_PLCP = 1,
IWL_RATE_SISO_18M_PLCP = 2,
IWL_RATE_SISO_24M_PLCP = 3,
IWL_RATE_SISO_36M_PLCP = 4,
IWL_RATE_SISO_48M_PLCP = 5,
IWL_RATE_SISO_54M_PLCP = 6,
IWL_RATE_SISO_60M_PLCP = 7,
IWL_RATE_MIMO_6M_PLCP = 0x8,
IWL_RATE_MIMO_12M_PLCP = 0x9,
IWL_RATE_MIMO_18M_PLCP = 0xa,
IWL_RATE_MIMO_24M_PLCP = 0xb,
IWL_RATE_MIMO_36M_PLCP = 0xc,
IWL_RATE_MIMO_48M_PLCP = 0xd,
IWL_RATE_MIMO_54M_PLCP = 0xe,
IWL_RATE_MIMO_60M_PLCP = 0xf,
IWL_RATE_SISO_INVM_PLCP,
IWL_RATE_MIMO_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
};
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_60M_IEEE = 120,
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_INVALID_VALUE -1
#define IWL_MIN_RSSI_VAL -100
#define IWL_MAX_RSSI_VAL 0
#define IWL_LEGACY_SWITCH_ANTENNA 0
#define IWL_LEGACY_SWITCH_SISO 1
#define IWL_LEGACY_SWITCH_MIMO 2
#define IWL_RS_GOOD_RATIO 12800
#define IWL_ACTION_LIMIT 3
#define IWL_LEGACY_FAILURE_LIMIT 160
#define IWL_LEGACY_SUCCESS_LIMIT 480
#define IWL_LEGACY_TABLE_COUNT 160
#define IWL_NONE_LEGACY_FAILURE_LIMIT 400
#define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500
#define IWL_NONE_LEGACY_TABLE_COUNT 1500
#define IWL_RATE_SCALE_SWITCH (10880)
#define IWL_SISO_SWITCH_ANTENNA 0
#define IWL_SISO_SWITCH_MIMO 1
#define IWL_SISO_SWITCH_GI 2
#define IWL_MIMO_SWITCH_ANTENNA_A 0
#define IWL_MIMO_SWITCH_ANTENNA_B 1
#define IWL_MIMO_SWITCH_GI 2
#define LQ_SIZE 2
extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
enum iwl_table_type {
LQ_NONE,
LQ_G,
LQ_A,
LQ_SISO,
LQ_MIMO,
LQ_MAX,
};
enum iwl_antenna_type {
ANT_NONE,
ANT_MAIN,
ANT_AUX,
ANT_BOTH,
};
static inline u8 iwl_get_prev_ieee_rate(u8 rate_index)
{
u8 rate = iwl_rates[rate_index].prev_ieee;
if (rate == IWL_RATE_INVALID)
rate = rate_index;
return rate;
}
extern int iwl_rate_index_from_plcp(int plcp);
/**
* iwl_fill_rs_info - Fill an output text buffer with the rate representation
*
* NOTE: This is provided as a quick mechanism for a user to visualize
* the performance of the rate control alogirthm and is not meant to be
* parsed software.
*/
extern int iwl_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
/**
* iwl_rate_scale_init - Initialize the rate scale table based on assoc info
*
* The specific througput table used is based on the type of network
* the associated with, including A, B, G, and G w/ TGG protection
*/
extern void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
/**
* iwl_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
* iwl_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 void iwl_rate_control_register(struct ieee80211_hw *hw);
/**
* iwl_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 iwl_rate_control_unregister(struct ieee80211_hw *hw);
#endif
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