diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965-rs.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965-rs.h | 121 |
1 files changed, 72 insertions, 49 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-rs.h b/drivers/net/wireless/iwlwifi/iwl-4965-rs.h index c6325f72df6..55f70738278 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965-rs.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965-rs.h @@ -29,11 +29,11 @@ #include "iwl-4965.h" -struct iwl_rate_info { - u8 plcp; - u8 plcp_siso; - u8 plcp_mimo; - u8 ieee; +struct iwl4965_rate_info { + u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ + u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ + u8 plcp_mimo; /* uCode API: IWL_RATE_MIMO_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 */ @@ -42,6 +42,10 @@ struct iwl_rate_info { u8 next_rs_tgg; /* next rate used in TGG rs algo */ }; +/* + * These serve as indexes into + * struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT]; + */ enum { IWL_RATE_1M_INDEX = 0, IWL_RATE_2M_INDEX, @@ -69,20 +73,21 @@ enum { }; /* #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) - +#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) + +/* 4965 uCode API values for legacy bit rates, both OFDM and CCK */ enum { IWL_RATE_6M_PLCP = 13, IWL_RATE_9M_PLCP = 15, @@ -99,7 +104,7 @@ enum { IWL_RATE_11M_PLCP = 110, }; -/* OFDM HT rate plcp */ +/* 4965 uCode API values for OFDM high-throughput (HT) bit rates */ enum { IWL_RATE_SISO_6M_PLCP = 0, IWL_RATE_SISO_12M_PLCP = 1, @@ -121,6 +126,7 @@ enum { IWL_RATE_MIMO_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP, }; +/* MAC header values for bit rates */ enum { IWL_RATE_6M_IEEE = 12, IWL_RATE_9M_IEEE = 18, @@ -163,20 +169,15 @@ enum { (IWL_OFDM_BASIC_RATES_MASK | \ IWL_CCK_BASIC_RATES_MASK) -#define IWL_RATES_MASK ((1<<IWL_RATE_COUNT)-1) +#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 +/* 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 @@ -185,82 +186,104 @@ enum { #define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500 #define IWL_NONE_LEGACY_TABLE_COUNT 1500 -#define IWL_RATE_SCALE_SWITCH (10880) +/* 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_ANTENNA 0 +#define IWL_LEGACY_SWITCH_SISO 1 +#define IWL_LEGACY_SWITCH_MIMO 2 + +/* possible actions when in siso mode */ #define IWL_SISO_SWITCH_ANTENNA 0 #define IWL_SISO_SWITCH_MIMO 1 #define IWL_SISO_SWITCH_GI 2 +/* possible actions when in mimo mode */ #define IWL_MIMO_SWITCH_ANTENNA_A 0 #define IWL_MIMO_SWITCH_ANTENNA_B 1 #define IWL_MIMO_SWITCH_GI 2 -#define LQ_SIZE 2 +#define IWL_ACTION_LIMIT 3 /* # possible actions */ + +#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */ -extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT]; +extern const struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT]; -enum iwl_table_type { +enum iwl4965_table_type { LQ_NONE, - LQ_G, + LQ_G, /* legacy types */ LQ_A, - LQ_SISO, + LQ_SISO, /* high-throughput types */ LQ_MIMO, LQ_MAX, }; -enum iwl_antenna_type { +#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A)) +#define is_siso(tbl) (((tbl) == LQ_SISO)) +#define is_mimo(tbl) (((tbl) == LQ_MIMO)) +#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)) + +/* 4965 has 2 antennas/chains for Tx (but 3 for Rx) */ +enum iwl4965_antenna_type { ANT_NONE, ANT_MAIN, ANT_AUX, ANT_BOTH, }; -static inline u8 iwl_get_prev_ieee_rate(u8 rate_index) +static inline u8 iwl4965_get_prev_ieee_rate(u8 rate_index) { - u8 rate = iwl_rates[rate_index].prev_ieee; + u8 rate = iwl4965_rates[rate_index].prev_ieee; if (rate == IWL_RATE_INVALID) rate = rate_index; return rate; } -extern int iwl_rate_index_from_plcp(int plcp); +extern int iwl4965_rate_index_from_plcp(int plcp); /** - * iwl_fill_rs_info - Fill an output text buffer with the rate representation + * iwl4965_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 + * the performance of the rate control algorithm and is not meant to be * parsed software. */ -extern int iwl_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id); +extern int iwl4965_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id); /** - * iwl_rate_scale_init - Initialize the rate scale table based on assoc info + * iwl4965_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 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 iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id); +extern void iwl4965_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id); /** - * iwl_rate_control_register - Register the rate control algorithm callbacks + * 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 - * iwl_rate_control_register in order to register the rate control callbacks + * 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 void iwl_rate_control_register(struct ieee80211_hw *hw); +extern void iwl4965_rate_control_register(struct ieee80211_hw *hw); /** - * iwl_rate_control_unregister - Unregister the rate control callbacks + * 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 iwl_rate_control_unregister(struct ieee80211_hw *hw); +extern void iwl4965_rate_control_unregister(struct ieee80211_hw *hw); #endif |