[linux.git] / drivers / net / wireless / iwlwifi / iwl-agn-rs.h

/******************************************************************************
 *
 * Copyright(c) 2003 - 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:
 * James P. Ketrenos <[email protected]>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 *****************************************************************************/

#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. */
	u8 plcp_mimo2;	/* uCode API:  IWL_RATE_MIMO2_6M_PLCP, etc. */
	u8 plcp_mimo3;  /* uCode API:  IWL_RATE_MIMO3_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 */
};

/*
 * These serve as indexes into
 * struct iwl_rate_info iwl_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_60M_INDEX,
	IWL_RATE_COUNT, /*FIXME:RS:change to IWL_RATE_INDEX_COUNT,*/
	IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
	IWL_RATE_INVALID = IWL_RATE_COUNT,
};

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)

/* 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_60M_PLCP = 3,/*FIXME:RS:should be removed*/
	IWL_RATE_1M_PLCP  = 10,
	IWL_RATE_2M_PLCP  = 20,
	IWL_RATE_5M_PLCP  = 55,
	IWL_RATE_11M_PLCP = 110,
	/*FIXME:RS:change to IWL_RATE_LEGACY_??M_PLCP */
	/*FIXME:RS:add IWL_RATE_LEGACY_INVM_PLCP = 0,*/
};

/* uCode API values for OFDM high-throughput (HT) bit rates */
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_MIMO2_6M_PLCP  = 0x8,
	IWL_RATE_MIMO2_12M_PLCP = 0x9,
	IWL_RATE_MIMO2_18M_PLCP = 0xa,
	IWL_RATE_MIMO2_24M_PLCP = 0xb,
	IWL_RATE_MIMO2_36M_PLCP = 0xc,
	IWL_RATE_MIMO2_48M_PLCP = 0xd,
	IWL_RATE_MIMO2_54M_PLCP = 0xe,
	IWL_RATE_MIMO2_60M_PLCP = 0xf,
	IWL_RATE_MIMO3_6M_PLCP  = 0x10,
	IWL_RATE_MIMO3_12M_PLCP = 0x11,
	IWL_RATE_MIMO3_18M_PLCP = 0x12,
	IWL_RATE_MIMO3_24M_PLCP = 0x13,
	IWL_RATE_MIMO3_36M_PLCP = 0x14,
	IWL_RATE_MIMO3_48M_PLCP = 0x15,
	IWL_RATE_MIMO3_54M_PLCP = 0x16,
	IWL_RATE_MIMO3_60M_PLCP = 0x17,
	IWL_RATE_SISO_INVM_PLCP,
	IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
	IWL_RATE_MIMO3_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
};

/* 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_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

/* These values specify how many Tx frame attempts before
 * searching for a new modulation mode */
#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

/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
#define IWL_RS_GOOD_RATIO		12800	/* 100% */
#define IWL_RATE_SCALE_SWITCH		10880	/*  85% */
#define IWL_RATE_HIGH_TH		10880	/*  85% */
#define IWL_RATE_INCREASE_TH            8960	/*  70% */
#define IWL_RATE_DECREASE_TH		1920	/*  15% */

/* possible actions when in legacy mode */
#define IWL_LEGACY_SWITCH_ANTENNA1      0
#define IWL_LEGACY_SWITCH_ANTENNA2      1
#define IWL_LEGACY_SWITCH_SISO          2
#define IWL_LEGACY_SWITCH_MIMO2_AB      3
#define IWL_LEGACY_SWITCH_MIMO2_AC      4
#define IWL_LEGACY_SWITCH_MIMO2_BC      5

/* possible actions when in siso mode */
#define IWL_SISO_SWITCH_ANTENNA1        0
#define IWL_SISO_SWITCH_ANTENNA2        1
#define IWL_SISO_SWITCH_MIMO2_AB        2
#define IWL_SISO_SWITCH_MIMO2_AC        3
#define IWL_SISO_SWITCH_MIMO2_BC        4
#define IWL_SISO_SWITCH_GI              5

/* possible actions when in mimo mode */
#define IWL_MIMO2_SWITCH_ANTENNA1       0
#define IWL_MIMO2_SWITCH_ANTENNA2       1
#define IWL_MIMO2_SWITCH_SISO_A         2
#define IWL_MIMO2_SWITCH_SISO_B         3
#define IWL_MIMO2_SWITCH_SISO_C         4
#define IWL_MIMO2_SWITCH_GI             5

/*FIXME:RS:add posible acctions for MIMO3*/

#define IWL_ACTION_LIMIT		3	/* # possible actions */

#define LQ_SIZE		2	/* 2 mode tables:  "Active" and "Search" */

/* load per tid defines for A-MPDU activation */
#define IWL_AGG_TPT_THREHOLD	0
#define IWL_AGG_LOAD_THRESHOLD	10
#define IWL_AGG_ALL_TID		0xff
#define TID_QUEUE_CELL_SPACING	50	/*mS */
#define TID_QUEUE_MAX_SIZE	20
#define TID_ROUND_VALUE		5	/* mS */
#define TID_MAX_LOAD_COUNT	8

#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))

extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];

enum iwl_table_type {
	LQ_NONE,
	LQ_G,		/* legacy types */
	LQ_A,
	LQ_SISO,	/* high-throughput types */
	LQ_MIMO2,
	LQ_MIMO3,
	LQ_MAX,
};

#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A))
#define is_siso(tbl) ((tbl) == LQ_SISO)
#define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
#define is_mimo3(tbl) ((tbl) == LQ_MIMO3)
#define is_mimo(tbl) (is_mimo2(tbl) || is_mimo3(tbl))
#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
#define is_a_band(tbl) ((tbl) == LQ_A)
#define is_g_and(tbl) ((tbl) == LQ_G)

#define	ANT_NONE	0x0
#define	ANT_A		BIT(0)
#define	ANT_B		BIT(1)
#define	ANT_AB		(ANT_A | ANT_B)
#define ANT_C		BIT(2)
#define	ANT_AC		(ANT_A | ANT_C)
#define ANT_BC		(ANT_B | ANT_C)
#define ANT_ABC		(ANT_AB | ANT_C)

static inline u8 num_of_ant(u8 mask)
{
	return  !!((mask) & ANT_A) +
		!!((mask) & ANT_B) +
		!!((mask) & ANT_C);
}

static inline u8 first_antenna(u8 mask)
{
	if (mask & ANT_A)
		return ANT_A;
	if (mask & ANT_B)
		return ANT_B;
	return ANT_C;
}


static inline u8 iwl4965_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;
}

/**
 * iwl4965_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
 * iwl4965_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 iwlagn_rate_control_register(void);

/**
 * iwl4965_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 iwlagn_rate_control_unregister(void);

#endif /* __iwl_agn__rs__ */
Commit	Line	Data
b481de9c ZY	1	/******************************************************************************
b481de9c ZY	2	*
eb7ae89c	3	* Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
b481de9c ZY	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of version 2 of the GNU General Public License as
	7	* published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along with
	15	* this program; if not, write to the Free Software Foundation, Inc.,
	16	* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
	17	*
	18	* The full GNU General Public License is included in this distribution in the
	19	* file called LICENSE.
	20	*
	21	* Contact Information:
	22	* James P. Ketrenos <[email protected]>
	23	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	24	*
	25	*****************************************************************************/
	26
e227ceac TW	27	#ifndef __iwl_agn_rs_h__
e227ceac TW	28	#define __iwl_agn_rs_h__
b481de9c	29
3e0d4cb1	30	#include "iwl-dev.h"
b481de9c	31
1826dcc0	32	struct iwl_rate_info {
77626355 BC	33	u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
77626355 BC	34	u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
fde0db31 GC	35	u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */
fde0db31 GC	36	u8 plcp_mimo3; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */
77626355	37	u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
b481de9c ZY	38	u8 prev_ieee; /* previous rate in IEEE speeds */
	39	u8 next_ieee; /* next rate in IEEE speeds */
	40	u8 prev_rs; /* previous rate used in rs algo */
	41	u8 next_rs; /* next rate used in rs algo */
	42	u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
	43	u8 next_rs_tgg; /* next rate used in TGG rs algo */
	44	};
	45
9fbab516 BC	46	/*
9fbab516 BC	47	* These serve as indexes into
1826dcc0	48	* struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
9fbab516	49	*/
b481de9c ZY	50	enum {
	51	IWL_RATE_1M_INDEX = 0,
	52	IWL_RATE_2M_INDEX,
	53	IWL_RATE_5M_INDEX,
	54	IWL_RATE_11M_INDEX,
	55	IWL_RATE_6M_INDEX,
	56	IWL_RATE_9M_INDEX,
	57	IWL_RATE_12M_INDEX,
	58	IWL_RATE_18M_INDEX,
	59	IWL_RATE_24M_INDEX,
	60	IWL_RATE_36M_INDEX,
	61	IWL_RATE_48M_INDEX,
	62	IWL_RATE_54M_INDEX,
	63	IWL_RATE_60M_INDEX,
fde0db31	64	IWL_RATE_COUNT, /FIXME:RS:change to IWL_RATE_INDEX_COUNT,/
b481de9c	65	IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
fde0db31	66	IWL_RATE_INVALID = IWL_RATE_COUNT,
b481de9c ZY	67	};
	68
	69	enum {
	70	IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
	71	IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX,
	72	IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
	73	IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
	74	};
	75
	76	/* #define vs. enum to keep from defaulting to 'large integer' */
8a1b0245 RC	77	#define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX)
	78	#define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX)
	79	#define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX)
	80	#define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX)
	81	#define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX)
	82	#define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX)
	83	#define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX)
	84	#define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX)
	85	#define IWL_RATE_60M_MASK (1 << IWL_RATE_60M_INDEX)
	86	#define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX)
	87	#define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX)
	88	#define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX)
	89	#define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX)
b481de9c	90
e227ceac	91	/* uCode API values for legacy bit rates, both OFDM and CCK */
b481de9c ZY	92	enum {
	93	IWL_RATE_6M_PLCP = 13,
	94	IWL_RATE_9M_PLCP = 15,
	95	IWL_RATE_12M_PLCP = 5,
	96	IWL_RATE_18M_PLCP = 7,
	97	IWL_RATE_24M_PLCP = 9,
	98	IWL_RATE_36M_PLCP = 11,
	99	IWL_RATE_48M_PLCP = 1,
	100	IWL_RATE_54M_PLCP = 3,
fde0db31	101	IWL_RATE_60M_PLCP = 3,/FIXME:RS:should be removed/
b481de9c ZY	102	IWL_RATE_1M_PLCP = 10,
	103	IWL_RATE_2M_PLCP = 20,
	104	IWL_RATE_5M_PLCP = 55,
	105	IWL_RATE_11M_PLCP = 110,
fde0db31 GC	106	/FIXME:RS:change to IWL_RATE_LEGACY_??M_PLCP /
fde0db31 GC	107	/FIXME:RS:add IWL_RATE_LEGACY_INVM_PLCP = 0,/
b481de9c ZY	108	};
b481de9c ZY	109
e227ceac	110	/* uCode API values for OFDM high-throughput (HT) bit rates */
b481de9c ZY	111	enum {
	112	IWL_RATE_SISO_6M_PLCP = 0,
	113	IWL_RATE_SISO_12M_PLCP = 1,
	114	IWL_RATE_SISO_18M_PLCP = 2,
	115	IWL_RATE_SISO_24M_PLCP = 3,
	116	IWL_RATE_SISO_36M_PLCP = 4,
	117	IWL_RATE_SISO_48M_PLCP = 5,
	118	IWL_RATE_SISO_54M_PLCP = 6,
	119	IWL_RATE_SISO_60M_PLCP = 7,
fde0db31 GC	120	IWL_RATE_MIMO2_6M_PLCP = 0x8,
	121	IWL_RATE_MIMO2_12M_PLCP = 0x9,
	122	IWL_RATE_MIMO2_18M_PLCP = 0xa,
	123	IWL_RATE_MIMO2_24M_PLCP = 0xb,
	124	IWL_RATE_MIMO2_36M_PLCP = 0xc,
	125	IWL_RATE_MIMO2_48M_PLCP = 0xd,
	126	IWL_RATE_MIMO2_54M_PLCP = 0xe,
	127	IWL_RATE_MIMO2_60M_PLCP = 0xf,
	128	IWL_RATE_MIMO3_6M_PLCP = 0x10,
	129	IWL_RATE_MIMO3_12M_PLCP = 0x11,
	130	IWL_RATE_MIMO3_18M_PLCP = 0x12,
	131	IWL_RATE_MIMO3_24M_PLCP = 0x13,
	132	IWL_RATE_MIMO3_36M_PLCP = 0x14,
	133	IWL_RATE_MIMO3_48M_PLCP = 0x15,
	134	IWL_RATE_MIMO3_54M_PLCP = 0x16,
	135	IWL_RATE_MIMO3_60M_PLCP = 0x17,
b481de9c	136	IWL_RATE_SISO_INVM_PLCP,
fde0db31 GC	137	IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
fde0db31 GC	138	IWL_RATE_MIMO3_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
b481de9c ZY	139	};
b481de9c ZY	140
77626355	141	/* MAC header values for bit rates */
b481de9c ZY	142	enum {
	143	IWL_RATE_6M_IEEE = 12,
	144	IWL_RATE_9M_IEEE = 18,
	145	IWL_RATE_12M_IEEE = 24,
	146	IWL_RATE_18M_IEEE = 36,
	147	IWL_RATE_24M_IEEE = 48,
	148	IWL_RATE_36M_IEEE = 72,
	149	IWL_RATE_48M_IEEE = 96,
	150	IWL_RATE_54M_IEEE = 108,
	151	IWL_RATE_60M_IEEE = 120,
	152	IWL_RATE_1M_IEEE = 2,
	153	IWL_RATE_2M_IEEE = 4,
	154	IWL_RATE_5M_IEEE = 11,
	155	IWL_RATE_11M_IEEE = 22,
	156	};
	157
	158	#define IWL_CCK_BASIC_RATES_MASK \
	159	(IWL_RATE_1M_MASK \| \
	160	IWL_RATE_2M_MASK)
	161
	162	#define IWL_CCK_RATES_MASK \
	163	(IWL_BASIC_RATES_MASK \| \
	164	IWL_RATE_5M_MASK \| \
	165	IWL_RATE_11M_MASK)
	166
	167	#define IWL_OFDM_BASIC_RATES_MASK \
	168	(IWL_RATE_6M_MASK \| \
	169	IWL_RATE_12M_MASK \| \
	170	IWL_RATE_24M_MASK)
	171
	172	#define IWL_OFDM_RATES_MASK \
	173	(IWL_OFDM_BASIC_RATES_MASK \| \
	174	IWL_RATE_9M_MASK \| \
	175	IWL_RATE_18M_MASK \| \
	176	IWL_RATE_36M_MASK \| \
	177	IWL_RATE_48M_MASK \| \
	178	IWL_RATE_54M_MASK)
	179
	180	#define IWL_BASIC_RATES_MASK \
	181	(IWL_OFDM_BASIC_RATES_MASK \| \
	182	IWL_CCK_BASIC_RATES_MASK)
	183
8a1b0245	184	#define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1)
b481de9c ZY	185
	186	#define IWL_INVALID_VALUE -1
	187
	188	#define IWL_MIN_RSSI_VAL -100
	189	#define IWL_MAX_RSSI_VAL 0
	190
77626355 BC	191	/* These values specify how many Tx frame attempts before
77626355 BC	192	* searching for a new modulation mode */
b481de9c ZY	193	#define IWL_LEGACY_FAILURE_LIMIT 160
	194	#define IWL_LEGACY_SUCCESS_LIMIT 480
	195	#define IWL_LEGACY_TABLE_COUNT 160
	196
	197	#define IWL_NONE_LEGACY_FAILURE_LIMIT 400
	198	#define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500
	199	#define IWL_NONE_LEGACY_TABLE_COUNT 1500
	200
77626355 BC	201	/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
	202	#define IWL_RS_GOOD_RATIO 12800 /* 100% */
	203	#define IWL_RATE_SCALE_SWITCH 10880 /* 85% */
	204	#define IWL_RATE_HIGH_TH 10880 /* 85% */
	205	#define IWL_RATE_INCREASE_TH 8960 /* 70% */
	206	#define IWL_RATE_DECREASE_TH 1920 /* 15% */
b481de9c	207
77626355	208	/* possible actions when in legacy mode */
3110bef7 GC	209	#define IWL_LEGACY_SWITCH_ANTENNA1 0
	210	#define IWL_LEGACY_SWITCH_ANTENNA2 1
	211	#define IWL_LEGACY_SWITCH_SISO 2
	212	#define IWL_LEGACY_SWITCH_MIMO2_AB 3
	213	#define IWL_LEGACY_SWITCH_MIMO2_AC 4
	214	#define IWL_LEGACY_SWITCH_MIMO2_BC 5
77626355 BC	215
77626355 BC	216	/* possible actions when in siso mode */
3110bef7 GC	217	#define IWL_SISO_SWITCH_ANTENNA1 0
	218	#define IWL_SISO_SWITCH_ANTENNA2 1
	219	#define IWL_SISO_SWITCH_MIMO2_AB 2
	220	#define IWL_SISO_SWITCH_MIMO2_AC 3
	221	#define IWL_SISO_SWITCH_MIMO2_BC 4
	222	#define IWL_SISO_SWITCH_GI 5
b481de9c	223
77626355	224	/* possible actions when in mimo mode */
3110bef7 GC	225	#define IWL_MIMO2_SWITCH_ANTENNA1 0
	226	#define IWL_MIMO2_SWITCH_ANTENNA2 1
	227	#define IWL_MIMO2_SWITCH_SISO_A 2
	228	#define IWL_MIMO2_SWITCH_SISO_B 3
	229	#define IWL_MIMO2_SWITCH_SISO_C 4
	230	#define IWL_MIMO2_SWITCH_GI 5
fde0db31 GC	231
	232	/FIXME:RS:add posible acctions for MIMO3/
	233
77626355 BC	234	#define IWL_ACTION_LIMIT 3 /* # possible actions */
	235
	236	#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
b481de9c	237
0c11b4de RR	238	/* load per tid defines for A-MPDU activation */
	239	#define IWL_AGG_TPT_THREHOLD 0
	240	#define IWL_AGG_LOAD_THRESHOLD 10
	241	#define IWL_AGG_ALL_TID 0xff
	242	#define TID_QUEUE_CELL_SPACING 50 /mS /
	243	#define TID_QUEUE_MAX_SIZE 20
	244	#define TID_ROUND_VALUE 5 /* mS */
	245	#define TID_MAX_LOAD_COUNT 8
	246
	247	#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
	248	#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
	249
1826dcc0	250	extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
b481de9c	251
fde0db31	252	enum iwl_table_type {
b481de9c	253	LQ_NONE,
77626355	254	LQ_G, /* legacy types */
b481de9c	255	LQ_A,
77626355	256	LQ_SISO, /* high-throughput types */
fde0db31 GC	257	LQ_MIMO2,
fde0db31 GC	258	LQ_MIMO3,
b481de9c ZY	259	LQ_MAX,
	260	};
	261
81cd110d	262	#define is_legacy(tbl) (((tbl) == LQ_G) \|\| ((tbl) == LQ_A))
fde0db31 GC	263	#define is_siso(tbl) ((tbl) == LQ_SISO)
	264	#define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
	265	#define is_mimo3(tbl) ((tbl) == LQ_MIMO3)
	266	#define is_mimo(tbl) (is_mimo2(tbl) \|\| is_mimo3(tbl))
81cd110d	267	#define is_Ht(tbl) (is_siso(tbl) \|\| is_mimo(tbl))
fde0db31 GC	268	#define is_a_band(tbl) ((tbl) == LQ_A)
	269	#define is_g_and(tbl) ((tbl) == LQ_G)
	270
	271	#define ANT_NONE 0x0
	272	#define ANT_A BIT(0)
	273	#define ANT_B BIT(1)
	274	#define ANT_AB (ANT_A \| ANT_B)
	275	#define ANT_C BIT(2)
	276	#define ANT_AC (ANT_A \| ANT_C)
	277	#define ANT_BC (ANT_B \| ANT_C)
	278	#define ANT_ABC (ANT_AB \| ANT_C)
	279
	280	static inline u8 num_of_ant(u8 mask)
	281	{
	282	return !!((mask) & ANT_A) +
	283	!!((mask) & ANT_B) +
	284	!!((mask) & ANT_C);
	285	}
b481de9c	286
5d664a41 TW	287	static inline u8 first_antenna(u8 mask)
	288	{
	289	if (mask & ANT_A)
	290	return ANT_A;
	291	if (mask & ANT_B)
	292	return ANT_B;
	293	return ANT_C;
	294	}
	295
	296
bb8c093b	297	static inline u8 iwl4965_get_prev_ieee_rate(u8 rate_index)
b481de9c	298	{
1826dcc0	299	u8 rate = iwl_rates[rate_index].prev_ieee;
b481de9c ZY	300
	301	if (rate == IWL_RATE_INVALID)
	302	rate = rate_index;
	303	return rate;
	304	}
	305
b481de9c	306	/**
bb8c093b	307	* iwl4965_rate_control_register - Register the rate control algorithm callbacks
b481de9c ZY	308	*
	309	* Since the rate control algorithm is hardware specific, there is no need
	310	* or reason to place it as a stand alone module. The driver can call
bb8c093b	311	* iwl4965_rate_control_register in order to register the rate control callbacks
b481de9c ZY	312	* with the mac80211 subsystem. This should be performed prior to calling
	313	* ieee80211_register_hw
	314	*
	315	*/
e227ceac	316	extern int iwlagn_rate_control_register(void);
b481de9c ZY	317
b481de9c ZY	318	/**
bb8c093b	319	* iwl4965_rate_control_unregister - Unregister the rate control callbacks
b481de9c ZY	320	*
	321	* This should be called after calling ieee80211_unregister_hw, but before
	322	* the driver is unloaded.
	323	*/
e227ceac	324	extern void iwlagn_rate_control_unregister(void);
b481de9c	325
e227ceac	326	#endif /* __iwl_agn__rs__ */