505 строки
16 KiB
C
505 строки
16 KiB
C
/******************************************************************************
|
|
*
|
|
* Copyright(c) 2003 - 2009 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_agn_rs_h__
|
|
#define __iwl_agn_rs_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 */
|
|
};
|
|
|
|
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];
|
|
*/
|
|
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_COUNT_LEGACY = IWL_RATE_COUNT - 1, /* Excluding 60M */
|
|
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,
|
|
};
|
|
|
|
/* #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 6400 /* 50% */
|
|
#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
|
|
#define IWL_LEGACY_SWITCH_MIMO3_ABC 6
|
|
|
|
/* 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
|
|
#define IWL_SISO_SWITCH_MIMO3_ABC 6
|
|
|
|
|
|
/* 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
|
|
#define IWL_MIMO2_SWITCH_MIMO3_ABC 6
|
|
|
|
|
|
/* possible actions when in mimo3 mode */
|
|
#define IWL_MIMO3_SWITCH_ANTENNA1 0
|
|
#define IWL_MIMO3_SWITCH_ANTENNA2 1
|
|
#define IWL_MIMO3_SWITCH_SISO_A 2
|
|
#define IWL_MIMO3_SWITCH_SISO_B 3
|
|
#define IWL_MIMO3_SWITCH_SISO_C 4
|
|
#define IWL_MIMO3_SWITCH_MIMO2_AB 5
|
|
#define IWL_MIMO3_SWITCH_MIMO2_AC 6
|
|
#define IWL_MIMO3_SWITCH_MIMO2_BC 7
|
|
#define IWL_MIMO3_SWITCH_GI 8
|
|
|
|
|
|
#define IWL_MAX_11N_MIMO3_SEARCH IWL_MIMO3_SWITCH_GI
|
|
#define IWL_MAX_SEARCH IWL_MIMO2_SWITCH_MIMO3_ABC
|
|
|
|
/*FIXME:RS:add possible actions 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];
|
|
extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945];
|
|
|
|
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)
|
|
|
|
#define IWL_MAX_MCS_DISPLAY_SIZE 12
|
|
|
|
struct iwl_rate_mcs_info {
|
|
char mbps[IWL_MAX_MCS_DISPLAY_SIZE];
|
|
char mcs[IWL_MAX_MCS_DISPLAY_SIZE];
|
|
};
|
|
|
|
/**
|
|
* struct iwl_rate_scale_data -- tx success history for one rate
|
|
*/
|
|
struct iwl_rate_scale_data {
|
|
u64 data; /* bitmap of successful frames */
|
|
s32 success_counter; /* number of frames successful */
|
|
s32 success_ratio; /* per-cent * 128 */
|
|
s32 counter; /* number of frames attempted */
|
|
s32 average_tpt; /* success ratio * expected throughput */
|
|
unsigned long stamp;
|
|
};
|
|
|
|
/**
|
|
* struct iwl_scale_tbl_info -- tx params and success history for all rates
|
|
*
|
|
* There are two of these in struct iwl_lq_sta,
|
|
* one for "active", and one for "search".
|
|
*/
|
|
struct iwl_scale_tbl_info {
|
|
enum iwl_table_type lq_type;
|
|
u8 ant_type;
|
|
u8 is_SGI; /* 1 = short guard interval */
|
|
u8 is_ht40; /* 1 = 40 MHz channel width */
|
|
u8 is_dup; /* 1 = duplicated data streams */
|
|
u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */
|
|
u8 max_search; /* maximun number of tables we can search */
|
|
s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */
|
|
u32 current_rate; /* rate_n_flags, uCode API format */
|
|
struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */
|
|
};
|
|
|
|
struct iwl_traffic_load {
|
|
unsigned long time_stamp; /* age of the oldest statistics */
|
|
u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time
|
|
* slice */
|
|
u32 total; /* total num of packets during the
|
|
* last TID_MAX_TIME_DIFF */
|
|
u8 queue_count; /* number of queues that has
|
|
* been used since the last cleanup */
|
|
u8 head; /* start of the circular buffer */
|
|
};
|
|
|
|
/**
|
|
* struct iwl_lq_sta -- driver's rate scaling private structure
|
|
*
|
|
* Pointer to this gets passed back and forth between driver and mac80211.
|
|
*/
|
|
struct iwl_lq_sta {
|
|
u8 active_tbl; /* index of active table, range 0-1 */
|
|
u8 enable_counter; /* indicates HT mode */
|
|
u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */
|
|
u8 search_better_tbl; /* 1: currently trying alternate mode */
|
|
s32 last_tpt;
|
|
|
|
/* The following determine when to search for a new mode */
|
|
u32 table_count_limit;
|
|
u32 max_failure_limit; /* # failed frames before new search */
|
|
u32 max_success_limit; /* # successful frames before new search */
|
|
u32 table_count;
|
|
u32 total_failed; /* total failed frames, any/all rates */
|
|
u32 total_success; /* total successful frames, any/all rates */
|
|
u64 flush_timer; /* time staying in mode before new search */
|
|
|
|
u8 action_counter; /* # mode-switch actions tried */
|
|
u8 is_green;
|
|
u8 is_dup;
|
|
enum ieee80211_band band;
|
|
u8 ibss_sta_added;
|
|
|
|
/* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */
|
|
u32 supp_rates;
|
|
u16 active_legacy_rate;
|
|
u16 active_siso_rate;
|
|
u16 active_mimo2_rate;
|
|
u16 active_mimo3_rate;
|
|
u16 active_rate_basic;
|
|
s8 max_rate_idx; /* Max rate set by user */
|
|
u8 missed_rate_counter;
|
|
|
|
struct iwl_link_quality_cmd lq;
|
|
struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
|
|
struct iwl_traffic_load load[TID_MAX_LOAD_COUNT];
|
|
u8 tx_agg_tid_en;
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct dentry *rs_sta_dbgfs_scale_table_file;
|
|
struct dentry *rs_sta_dbgfs_stats_table_file;
|
|
struct dentry *rs_sta_dbgfs_rate_scale_data_file;
|
|
struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
|
|
u32 dbg_fixed_rate;
|
|
#endif
|
|
struct iwl_priv *drv;
|
|
|
|
/* used to be in sta_info */
|
|
int last_txrate_idx;
|
|
/* last tx rate_n_flags */
|
|
u32 last_rate_n_flags;
|
|
/* packets destined for this STA are aggregated */
|
|
u8 is_agg;
|
|
};
|
|
|
|
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 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;
|
|
}
|
|
|
|
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
|
|
*
|
|
* 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 int iwlagn_rate_control_register(void);
|
|
extern int iwl3945_rate_control_register(void);
|
|
|
|
/**
|
|
* 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 iwlagn_rate_control_unregister(void);
|
|
extern void iwl3945_rate_control_unregister(void);
|
|
|
|
#endif /* __iwl_agn__rs__ */
|