#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 */
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,
};
/* #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,
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,
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,
(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
#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
projects / linux-flexiantxendom0-3.2.10.git / blobdiff