/****************************************************************************** * * Copyright(c) 2005 - 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 <ipw2100-admin@linux.intel.com> * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ #ifndef __iwl_3945_rs_h__ #define __iwl_3945_rs_h__ 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 iwl3945_rate_info iwl3945_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_COUNT, IWL_RATE_INVM_INDEX, IWL_RATE_INVALID = IWL_RATE_INVM_INDEX }; 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, }; enum { IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX, IWL_LAST_OFDM_RATE = IWL_RATE_54M_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_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) /* 3945 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_1M_PLCP = 10, IWL_RATE_2M_PLCP = 20, IWL_RATE_5M_PLCP = 55, IWL_RATE_11M_PLCP = 110, }; /* 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_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_INV_TPT -1 #define IWL_MIN_RSSI_VAL -100 #define IWL_MAX_RSSI_VAL 0 extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT]; 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_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 algorithm and is not meant to be * parsed software. */ extern int iwl3945_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id); /** * 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); /** * iwl3945_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 * iwl3945_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 iwl3945_rate_control_register(struct ieee80211_hw *hw); /** * iwl3945_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 iwl3945_rate_control_unregister(struct ieee80211_hw *hw); #endif