Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Reinette Chatre | eb7ae89 | 2008-03-11 16:17:17 -0700 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of version 2 of the GNU General Public License as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 17 | * |
| 18 | * The full GNU General Public License is included in this distribution in the |
| 19 | * file called LICENSE. |
| 20 | * |
| 21 | * Contact Information: |
| 22 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> |
| 23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 24 | * |
| 25 | *****************************************************************************/ |
| 26 | |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 27 | #ifndef __iwl_agn_rs_h__ |
| 28 | #define __iwl_agn_rs_h__ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 29 | |
Tomas Winkler | 3e0d4cb | 2008-04-24 11:55:38 -0700 | [diff] [blame] | 30 | #include "iwl-dev.h" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 31 | |
Tomas Winkler | 1826dcc | 2008-05-15 13:54:02 +0800 | [diff] [blame] | 32 | struct iwl_rate_info { |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 33 | u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ |
| 34 | u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 35 | u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */ |
| 36 | u8 plcp_mimo3; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */ |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 37 | u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 38 | u8 prev_ieee; /* previous rate in IEEE speeds */ |
| 39 | u8 next_ieee; /* next rate in IEEE speeds */ |
| 40 | u8 prev_rs; /* previous rate used in rs algo */ |
| 41 | u8 next_rs; /* next rate used in rs algo */ |
| 42 | u8 prev_rs_tgg; /* previous rate used in TGG rs algo */ |
| 43 | u8 next_rs_tgg; /* next rate used in TGG rs algo */ |
| 44 | }; |
| 45 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 46 | /* |
| 47 | * These serve as indexes into |
Tomas Winkler | 1826dcc | 2008-05-15 13:54:02 +0800 | [diff] [blame] | 48 | * struct iwl_rate_info iwl_rates[IWL_RATE_COUNT]; |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 49 | */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 50 | enum { |
| 51 | IWL_RATE_1M_INDEX = 0, |
| 52 | IWL_RATE_2M_INDEX, |
| 53 | IWL_RATE_5M_INDEX, |
| 54 | IWL_RATE_11M_INDEX, |
| 55 | IWL_RATE_6M_INDEX, |
| 56 | IWL_RATE_9M_INDEX, |
| 57 | IWL_RATE_12M_INDEX, |
| 58 | IWL_RATE_18M_INDEX, |
| 59 | IWL_RATE_24M_INDEX, |
| 60 | IWL_RATE_36M_INDEX, |
| 61 | IWL_RATE_48M_INDEX, |
| 62 | IWL_RATE_54M_INDEX, |
| 63 | IWL_RATE_60M_INDEX, |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 64 | IWL_RATE_COUNT, /*FIXME:RS:change to IWL_RATE_INDEX_COUNT,*/ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 65 | IWL_RATE_INVM_INDEX = IWL_RATE_COUNT, |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 66 | IWL_RATE_INVALID = IWL_RATE_COUNT, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 67 | }; |
| 68 | |
| 69 | enum { |
| 70 | IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX, |
| 71 | IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX, |
| 72 | IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX, |
| 73 | IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX, |
| 74 | }; |
| 75 | |
| 76 | /* #define vs. enum to keep from defaulting to 'large integer' */ |
Reinette Chatre | 8a1b024 | 2008-01-14 17:46:25 -0800 | [diff] [blame] | 77 | #define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX) |
| 78 | #define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX) |
| 79 | #define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX) |
| 80 | #define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX) |
| 81 | #define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX) |
| 82 | #define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX) |
| 83 | #define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX) |
| 84 | #define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX) |
| 85 | #define IWL_RATE_60M_MASK (1 << IWL_RATE_60M_INDEX) |
| 86 | #define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX) |
| 87 | #define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX) |
| 88 | #define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX) |
| 89 | #define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 90 | |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 91 | /* uCode API values for legacy bit rates, both OFDM and CCK */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 92 | enum { |
| 93 | IWL_RATE_6M_PLCP = 13, |
| 94 | IWL_RATE_9M_PLCP = 15, |
| 95 | IWL_RATE_12M_PLCP = 5, |
| 96 | IWL_RATE_18M_PLCP = 7, |
| 97 | IWL_RATE_24M_PLCP = 9, |
| 98 | IWL_RATE_36M_PLCP = 11, |
| 99 | IWL_RATE_48M_PLCP = 1, |
| 100 | IWL_RATE_54M_PLCP = 3, |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 101 | IWL_RATE_60M_PLCP = 3,/*FIXME:RS:should be removed*/ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 102 | IWL_RATE_1M_PLCP = 10, |
| 103 | IWL_RATE_2M_PLCP = 20, |
| 104 | IWL_RATE_5M_PLCP = 55, |
| 105 | IWL_RATE_11M_PLCP = 110, |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 106 | /*FIXME:RS:change to IWL_RATE_LEGACY_??M_PLCP */ |
| 107 | /*FIXME:RS:add IWL_RATE_LEGACY_INVM_PLCP = 0,*/ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 108 | }; |
| 109 | |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 110 | /* uCode API values for OFDM high-throughput (HT) bit rates */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 111 | enum { |
| 112 | IWL_RATE_SISO_6M_PLCP = 0, |
| 113 | IWL_RATE_SISO_12M_PLCP = 1, |
| 114 | IWL_RATE_SISO_18M_PLCP = 2, |
| 115 | IWL_RATE_SISO_24M_PLCP = 3, |
| 116 | IWL_RATE_SISO_36M_PLCP = 4, |
| 117 | IWL_RATE_SISO_48M_PLCP = 5, |
| 118 | IWL_RATE_SISO_54M_PLCP = 6, |
| 119 | IWL_RATE_SISO_60M_PLCP = 7, |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 120 | IWL_RATE_MIMO2_6M_PLCP = 0x8, |
| 121 | IWL_RATE_MIMO2_12M_PLCP = 0x9, |
| 122 | IWL_RATE_MIMO2_18M_PLCP = 0xa, |
| 123 | IWL_RATE_MIMO2_24M_PLCP = 0xb, |
| 124 | IWL_RATE_MIMO2_36M_PLCP = 0xc, |
| 125 | IWL_RATE_MIMO2_48M_PLCP = 0xd, |
| 126 | IWL_RATE_MIMO2_54M_PLCP = 0xe, |
| 127 | IWL_RATE_MIMO2_60M_PLCP = 0xf, |
| 128 | IWL_RATE_MIMO3_6M_PLCP = 0x10, |
| 129 | IWL_RATE_MIMO3_12M_PLCP = 0x11, |
| 130 | IWL_RATE_MIMO3_18M_PLCP = 0x12, |
| 131 | IWL_RATE_MIMO3_24M_PLCP = 0x13, |
| 132 | IWL_RATE_MIMO3_36M_PLCP = 0x14, |
| 133 | IWL_RATE_MIMO3_48M_PLCP = 0x15, |
| 134 | IWL_RATE_MIMO3_54M_PLCP = 0x16, |
| 135 | IWL_RATE_MIMO3_60M_PLCP = 0x17, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 136 | IWL_RATE_SISO_INVM_PLCP, |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 137 | IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP, |
| 138 | IWL_RATE_MIMO3_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 139 | }; |
| 140 | |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 141 | /* MAC header values for bit rates */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 142 | enum { |
| 143 | IWL_RATE_6M_IEEE = 12, |
| 144 | IWL_RATE_9M_IEEE = 18, |
| 145 | IWL_RATE_12M_IEEE = 24, |
| 146 | IWL_RATE_18M_IEEE = 36, |
| 147 | IWL_RATE_24M_IEEE = 48, |
| 148 | IWL_RATE_36M_IEEE = 72, |
| 149 | IWL_RATE_48M_IEEE = 96, |
| 150 | IWL_RATE_54M_IEEE = 108, |
| 151 | IWL_RATE_60M_IEEE = 120, |
| 152 | IWL_RATE_1M_IEEE = 2, |
| 153 | IWL_RATE_2M_IEEE = 4, |
| 154 | IWL_RATE_5M_IEEE = 11, |
| 155 | IWL_RATE_11M_IEEE = 22, |
| 156 | }; |
| 157 | |
| 158 | #define IWL_CCK_BASIC_RATES_MASK \ |
| 159 | (IWL_RATE_1M_MASK | \ |
| 160 | IWL_RATE_2M_MASK) |
| 161 | |
| 162 | #define IWL_CCK_RATES_MASK \ |
| 163 | (IWL_BASIC_RATES_MASK | \ |
| 164 | IWL_RATE_5M_MASK | \ |
| 165 | IWL_RATE_11M_MASK) |
| 166 | |
| 167 | #define IWL_OFDM_BASIC_RATES_MASK \ |
| 168 | (IWL_RATE_6M_MASK | \ |
| 169 | IWL_RATE_12M_MASK | \ |
| 170 | IWL_RATE_24M_MASK) |
| 171 | |
| 172 | #define IWL_OFDM_RATES_MASK \ |
| 173 | (IWL_OFDM_BASIC_RATES_MASK | \ |
| 174 | IWL_RATE_9M_MASK | \ |
| 175 | IWL_RATE_18M_MASK | \ |
| 176 | IWL_RATE_36M_MASK | \ |
| 177 | IWL_RATE_48M_MASK | \ |
| 178 | IWL_RATE_54M_MASK) |
| 179 | |
| 180 | #define IWL_BASIC_RATES_MASK \ |
| 181 | (IWL_OFDM_BASIC_RATES_MASK | \ |
| 182 | IWL_CCK_BASIC_RATES_MASK) |
| 183 | |
Reinette Chatre | 8a1b024 | 2008-01-14 17:46:25 -0800 | [diff] [blame] | 184 | #define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 185 | |
| 186 | #define IWL_INVALID_VALUE -1 |
| 187 | |
| 188 | #define IWL_MIN_RSSI_VAL -100 |
| 189 | #define IWL_MAX_RSSI_VAL 0 |
| 190 | |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 191 | /* These values specify how many Tx frame attempts before |
| 192 | * searching for a new modulation mode */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 193 | #define IWL_LEGACY_FAILURE_LIMIT 160 |
| 194 | #define IWL_LEGACY_SUCCESS_LIMIT 480 |
| 195 | #define IWL_LEGACY_TABLE_COUNT 160 |
| 196 | |
| 197 | #define IWL_NONE_LEGACY_FAILURE_LIMIT 400 |
| 198 | #define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500 |
| 199 | #define IWL_NONE_LEGACY_TABLE_COUNT 1500 |
| 200 | |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 201 | /* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */ |
| 202 | #define IWL_RS_GOOD_RATIO 12800 /* 100% */ |
| 203 | #define IWL_RATE_SCALE_SWITCH 10880 /* 85% */ |
| 204 | #define IWL_RATE_HIGH_TH 10880 /* 85% */ |
| 205 | #define IWL_RATE_INCREASE_TH 8960 /* 70% */ |
| 206 | #define IWL_RATE_DECREASE_TH 1920 /* 15% */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 207 | |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 208 | /* possible actions when in legacy mode */ |
Guy Cohen | 3110bef | 2008-09-09 10:54:54 +0800 | [diff] [blame] | 209 | #define IWL_LEGACY_SWITCH_ANTENNA1 0 |
| 210 | #define IWL_LEGACY_SWITCH_ANTENNA2 1 |
| 211 | #define IWL_LEGACY_SWITCH_SISO 2 |
| 212 | #define IWL_LEGACY_SWITCH_MIMO2_AB 3 |
| 213 | #define IWL_LEGACY_SWITCH_MIMO2_AC 4 |
| 214 | #define IWL_LEGACY_SWITCH_MIMO2_BC 5 |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 215 | |
| 216 | /* possible actions when in siso mode */ |
Guy Cohen | 3110bef | 2008-09-09 10:54:54 +0800 | [diff] [blame] | 217 | #define IWL_SISO_SWITCH_ANTENNA1 0 |
| 218 | #define IWL_SISO_SWITCH_ANTENNA2 1 |
| 219 | #define IWL_SISO_SWITCH_MIMO2_AB 2 |
| 220 | #define IWL_SISO_SWITCH_MIMO2_AC 3 |
| 221 | #define IWL_SISO_SWITCH_MIMO2_BC 4 |
| 222 | #define IWL_SISO_SWITCH_GI 5 |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 223 | |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 224 | /* possible actions when in mimo mode */ |
Guy Cohen | 3110bef | 2008-09-09 10:54:54 +0800 | [diff] [blame] | 225 | #define IWL_MIMO2_SWITCH_ANTENNA1 0 |
| 226 | #define IWL_MIMO2_SWITCH_ANTENNA2 1 |
| 227 | #define IWL_MIMO2_SWITCH_SISO_A 2 |
| 228 | #define IWL_MIMO2_SWITCH_SISO_B 3 |
| 229 | #define IWL_MIMO2_SWITCH_SISO_C 4 |
| 230 | #define IWL_MIMO2_SWITCH_GI 5 |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 231 | |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 232 | /*FIXME:RS:add possible actions for MIMO3*/ |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 233 | |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 234 | #define IWL_ACTION_LIMIT 3 /* # possible actions */ |
| 235 | |
| 236 | #define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 237 | |
Ron Rindjunsky | 0c11b4d | 2008-01-28 14:07:26 +0200 | [diff] [blame] | 238 | /* load per tid defines for A-MPDU activation */ |
| 239 | #define IWL_AGG_TPT_THREHOLD 0 |
| 240 | #define IWL_AGG_LOAD_THRESHOLD 10 |
| 241 | #define IWL_AGG_ALL_TID 0xff |
| 242 | #define TID_QUEUE_CELL_SPACING 50 /*mS */ |
| 243 | #define TID_QUEUE_MAX_SIZE 20 |
| 244 | #define TID_ROUND_VALUE 5 /* mS */ |
| 245 | #define TID_MAX_LOAD_COUNT 8 |
| 246 | |
| 247 | #define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING) |
| 248 | #define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y)) |
| 249 | |
Tomas Winkler | 1826dcc | 2008-05-15 13:54:02 +0800 | [diff] [blame] | 250 | extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 251 | |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 252 | enum iwl_table_type { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 253 | LQ_NONE, |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 254 | LQ_G, /* legacy types */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 255 | LQ_A, |
Ben Cahill | 7762635 | 2007-11-29 11:09:44 +0800 | [diff] [blame] | 256 | LQ_SISO, /* high-throughput types */ |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 257 | LQ_MIMO2, |
| 258 | LQ_MIMO3, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 259 | LQ_MAX, |
| 260 | }; |
| 261 | |
Ben Cahill | 81cd110 | 2007-11-29 11:09:48 +0800 | [diff] [blame] | 262 | #define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A)) |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 263 | #define is_siso(tbl) ((tbl) == LQ_SISO) |
| 264 | #define is_mimo2(tbl) ((tbl) == LQ_MIMO2) |
| 265 | #define is_mimo3(tbl) ((tbl) == LQ_MIMO3) |
| 266 | #define is_mimo(tbl) (is_mimo2(tbl) || is_mimo3(tbl)) |
Ben Cahill | 81cd110 | 2007-11-29 11:09:48 +0800 | [diff] [blame] | 267 | #define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl)) |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 268 | #define is_a_band(tbl) ((tbl) == LQ_A) |
| 269 | #define is_g_and(tbl) ((tbl) == LQ_G) |
Ben Cahill | 81cd110 | 2007-11-29 11:09:48 +0800 | [diff] [blame] | 270 | |
Guy Cohen | fde0db3 | 2008-04-21 15:42:01 -0700 | [diff] [blame] | 271 | #define ANT_NONE 0x0 |
| 272 | #define ANT_A BIT(0) |
| 273 | #define ANT_B BIT(1) |
| 274 | #define ANT_AB (ANT_A | ANT_B) |
| 275 | #define ANT_C BIT(2) |
| 276 | #define ANT_AC (ANT_A | ANT_C) |
| 277 | #define ANT_BC (ANT_B | ANT_C) |
| 278 | #define ANT_ABC (ANT_AB | ANT_C) |
| 279 | |
| 280 | static inline u8 num_of_ant(u8 mask) |
| 281 | { |
| 282 | return !!((mask) & ANT_A) + |
| 283 | !!((mask) & ANT_B) + |
| 284 | !!((mask) & ANT_C); |
| 285 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 286 | |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 287 | static inline u8 first_antenna(u8 mask) |
| 288 | { |
| 289 | if (mask & ANT_A) |
| 290 | return ANT_A; |
| 291 | if (mask & ANT_B) |
| 292 | return ANT_B; |
| 293 | return ANT_C; |
| 294 | } |
| 295 | |
| 296 | |
Winkler, Tomas | eb4779c | 2008-10-29 14:05:44 -0700 | [diff] [blame] | 297 | static inline u8 iwl_get_prev_ieee_rate(u8 rate_index) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 298 | { |
Tomas Winkler | 1826dcc | 2008-05-15 13:54:02 +0800 | [diff] [blame] | 299 | u8 rate = iwl_rates[rate_index].prev_ieee; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 300 | |
| 301 | if (rate == IWL_RATE_INVALID) |
| 302 | rate = rate_index; |
| 303 | return rate; |
| 304 | } |
| 305 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 306 | /** |
Winkler, Tomas | eb4779c | 2008-10-29 14:05:44 -0700 | [diff] [blame] | 307 | * iwl_rate_control_register - Register the rate control algorithm callbacks |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 308 | * |
| 309 | * Since the rate control algorithm is hardware specific, there is no need |
| 310 | * or reason to place it as a stand alone module. The driver can call |
Winkler, Tomas | eb4779c | 2008-10-29 14:05:44 -0700 | [diff] [blame] | 311 | * iwl_rate_control_register in order to register the rate control callbacks |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 312 | * with the mac80211 subsystem. This should be performed prior to calling |
| 313 | * ieee80211_register_hw |
| 314 | * |
| 315 | */ |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 316 | extern int iwlagn_rate_control_register(void); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 317 | |
| 318 | /** |
Winkler, Tomas | eb4779c | 2008-10-29 14:05:44 -0700 | [diff] [blame] | 319 | * iwl_rate_control_unregister - Unregister the rate control callbacks |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 320 | * |
| 321 | * This should be called after calling ieee80211_unregister_hw, but before |
| 322 | * the driver is unloaded. |
| 323 | */ |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 324 | extern void iwlagn_rate_control_unregister(void); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 325 | |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 326 | #endif /* __iwl_agn__rs__ */ |