| /****************************************************************************** |
| * |
| * 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 int iwl3945_rate_control_register(void); |
| |
| /** |
| * 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(void); |
| |
| #endif |