ar5212_phy.c revision 185521
1226046Sdes/* 2218767Sdes * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 3218767Sdes * Copyright (c) 2002-2008 Atheros Communications, Inc. 4218767Sdes * 5218767Sdes * Permission to use, copy, modify, and/or distribute this software for any 6218767Sdes * purpose with or without fee is hereby granted, provided that the above 7218767Sdes * copyright notice and this permission notice appear in all copies. 8218767Sdes * 9218767Sdes * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10218767Sdes * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11218767Sdes * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12218767Sdes * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13218767Sdes * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14218767Sdes * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15218767Sdes * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16218767Sdes * 17218767Sdes * $Id: ar5212_phy.c,v 1.5 2008/11/15 03:43:53 sam Exp $ 18218767Sdes */ 19218767Sdes#include "opt_ah.h" 20218767Sdes 21218767Sdes#include "ah.h" 22218767Sdes#include "ah_internal.h" 23218767Sdes 24218767Sdes#include "ar5212/ar5212.h" 25218767Sdes 26218767Sdes/* shorthands to compact tables for readability */ 27218767Sdes#define OFDM IEEE80211_T_OFDM 28218767Sdes#define CCK IEEE80211_T_CCK 29218767Sdes#define TURBO IEEE80211_T_TURBO 30218767Sdes 31218767SdesHAL_RATE_TABLE ar5212_11a_table = { 32218767Sdes 8, /* number of rates */ 33218767Sdes { 0 }, 34218767Sdes { 35218767Sdes/* short ctrl */ 36218767Sdes/* valid rateCode Preamble dot11Rate Rate */ 37218767Sdes/* 6 Mb */ { AH_TRUE, OFDM, 6000, 0x0b, 0x00, (0x80|12), 0 }, 38218767Sdes/* 9 Mb */ { AH_TRUE, OFDM, 9000, 0x0f, 0x00, 18, 0 }, 39218767Sdes/* 12 Mb */ { AH_TRUE, OFDM, 12000, 0x0a, 0x00, (0x80|24), 2 }, 40218767Sdes/* 18 Mb */ { AH_TRUE, OFDM, 18000, 0x0e, 0x00, 36, 2 }, 41218767Sdes/* 24 Mb */ { AH_TRUE, OFDM, 24000, 0x09, 0x00, (0x80|48), 4 }, 42218767Sdes/* 36 Mb */ { AH_TRUE, OFDM, 36000, 0x0d, 0x00, 72, 4 }, 43218767Sdes/* 48 Mb */ { AH_TRUE, OFDM, 48000, 0x08, 0x00, 96, 4 }, 44218767Sdes/* 54 Mb */ { AH_TRUE, OFDM, 54000, 0x0c, 0x00, 108, 4 } 45218767Sdes }, 46218767Sdes}; 47218767Sdes 48218767SdesHAL_RATE_TABLE ar5212_half_table = { 49218767Sdes 8, /* number of rates */ 50218767Sdes { 0 }, 51218767Sdes { 52218767Sdes/* short ctrl */ 53218767Sdes/* valid rateCode Preamble dot11Rate Rate */ 54218767Sdes/* 6 Mb */ { AH_TRUE, OFDM, 3000, 0x0b, 0x00, (0x80|6), 0 }, 55218767Sdes/* 9 Mb */ { AH_TRUE, OFDM, 4500, 0x0f, 0x00, 9, 0 }, 56218767Sdes/* 12 Mb */ { AH_TRUE, OFDM, 6000, 0x0a, 0x00, (0x80|12), 2 }, 57218767Sdes/* 18 Mb */ { AH_TRUE, OFDM, 9000, 0x0e, 0x00, 18, 2 }, 58218767Sdes/* 24 Mb */ { AH_TRUE, OFDM, 12000, 0x09, 0x00, (0x80|24), 4 }, 59218767Sdes/* 36 Mb */ { AH_TRUE, OFDM, 18000, 0x0d, 0x00, 36, 4 }, 60218767Sdes/* 48 Mb */ { AH_TRUE, OFDM, 24000, 0x08, 0x00, 48, 4 }, 61218767Sdes/* 54 Mb */ { AH_TRUE, OFDM, 27000, 0x0c, 0x00, 54, 4 } 62218767Sdes }, 63218767Sdes}; 64218767Sdes 65218767SdesHAL_RATE_TABLE ar5212_quarter_table = { 66218767Sdes 8, /* number of rates */ 67218767Sdes { 0 }, 68218767Sdes { 69218767Sdes/* short ctrl */ 70218767Sdes/* valid rateCode Preamble dot11Rate Rate */ 71218767Sdes/* 6 Mb */ { AH_TRUE, OFDM, 1500, 0x0b, 0x00, (0x80|3), 0 }, 72218767Sdes/* 9 Mb */ { AH_TRUE, OFDM, 2250, 0x0f, 0x00, 4, 0 }, 73218767Sdes/* 12 Mb */ { AH_TRUE, OFDM, 3000, 0x0a, 0x00, (0x80|6), 2 }, 74218767Sdes/* 18 Mb */ { AH_TRUE, OFDM, 4500, 0x0e, 0x00, 9, 2 }, 75218767Sdes/* 24 Mb */ { AH_TRUE, OFDM, 6000, 0x09, 0x00, (0x80|12), 4 }, 76218767Sdes/* 36 Mb */ { AH_TRUE, OFDM, 9000, 0x0d, 0x00, 18, 4 }, 77218767Sdes/* 48 Mb */ { AH_TRUE, OFDM, 12000, 0x08, 0x00, 24, 4 }, 78218767Sdes/* 54 Mb */ { AH_TRUE, OFDM, 13500, 0x0c, 0x00, 27, 4 } 79218767Sdes }, 80218767Sdes}; 81218767Sdes 82218767SdesHAL_RATE_TABLE ar5212_turbog_table = { 83218767Sdes 7, /* number of rates */ 84218767Sdes { 0 }, 85218767Sdes { 86218767Sdes/* short ctrl */ 87218767Sdes/* valid rateCode Preamble dot11Rate Rate */ 88218767Sdes/* 6 Mb */ { AH_TRUE, TURBO, 6000, 0x0b, 0x00, (0x80|12), 0 }, 89218767Sdes/* 12 Mb */ { AH_TRUE, TURBO, 12000, 0x0a, 0x00, (0x80|24), 2 }, 90218767Sdes/* 18 Mb */ { AH_TRUE, TURBO, 18000, 0x0e, 0x00, 36, 2 }, 91218767Sdes/* 24 Mb */ { AH_TRUE, TURBO, 24000, 0x09, 0x00, (0x80|48), 3 }, 92218767Sdes/* 36 Mb */ { AH_TRUE, TURBO, 36000, 0x0d, 0x00, 72, 3 }, 93218767Sdes/* 48 Mb */ { AH_TRUE, TURBO, 48000, 0x08, 0x00, 96, 3 }, 94218767Sdes/* 54 Mb */ { AH_TRUE, TURBO, 54000, 0x0c, 0x00, 108, 3 } 95218767Sdes }, 96218767Sdes}; 97218767Sdes 98218767SdesHAL_RATE_TABLE ar5212_turboa_table = { 99218767Sdes 8, /* number of rates */ 100218767Sdes { 0 }, 101218767Sdes { 102218767Sdes/* short ctrl */ 103218767Sdes/* valid rateCode Preamble dot11Rate Rate */ 104218767Sdes/* 6 Mb */ { AH_TRUE, TURBO, 6000, 0x0b, 0x00, (0x80|12), 0 }, 105218767Sdes/* 9 Mb */ { AH_TRUE, TURBO, 9000, 0x0f, 0x00, 18, 0 }, 106218767Sdes/* 12 Mb */ { AH_TRUE, TURBO, 12000, 0x0a, 0x00, (0x80|24), 2 }, 107218767Sdes/* 18 Mb */ { AH_TRUE, TURBO, 18000, 0x0e, 0x00, 36, 2 }, 108218767Sdes/* 24 Mb */ { AH_TRUE, TURBO, 24000, 0x09, 0x00, (0x80|48), 4 }, 109218767Sdes/* 36 Mb */ { AH_TRUE, TURBO, 36000, 0x0d, 0x00, 72, 4 }, 110218767Sdes/* 48 Mb */ { AH_TRUE, TURBO, 48000, 0x08, 0x00, 96, 4 }, 111218767Sdes/* 54 Mb */ { AH_TRUE, TURBO, 54000, 0x0c, 0x00, 108, 4 } 112218767Sdes }, 113218767Sdes}; 114218767Sdes 115218767SdesHAL_RATE_TABLE ar5212_11b_table = { 116218767Sdes 4, /* number of rates */ 117218767Sdes { 0 }, 118218767Sdes { 119218767Sdes/* short ctrl */ 120218767Sdes/* valid rateCode Preamble dot11Rate Rate */ 121218767Sdes/* 1 Mb */ { AH_TRUE, CCK, 1000, 0x1b, 0x00, (0x80| 2), 0 }, 122218767Sdes/* 2 Mb */ { AH_TRUE, CCK, 2000, 0x1a, 0x04, (0x80| 4), 1 }, 123218767Sdes/* 5.5 Mb */ { AH_TRUE, CCK, 5500, 0x19, 0x04, (0x80|11), 1 }, 124218767Sdes/* 11 Mb */ { AH_TRUE, CCK, 11000, 0x18, 0x04, (0x80|22), 1 } 125218767Sdes }, 126218767Sdes}; 127 128 129/* Venice TODO: roundUpRate() is broken when the rate table does not represent rates 130 * in increasing order e.g. 5.5, 11, 6, 9. 131 * An average rate of 6 Mbps will currently map to 11 Mbps. 132 */ 133HAL_RATE_TABLE ar5212_11g_table = { 134 12, /* number of rates */ 135 { 0 }, 136 { 137/* short ctrl */ 138/* valid rateCode Preamble dot11Rate Rate */ 139/* 1 Mb */ { AH_TRUE, CCK, 1000, 0x1b, 0x00, (0x80| 2), 0 }, 140/* 2 Mb */ { AH_TRUE, CCK, 2000, 0x1a, 0x04, (0x80| 4), 1 }, 141/* 5.5 Mb */ { AH_TRUE, CCK, 5500, 0x19, 0x04, (0x80|11), 2 }, 142/* 11 Mb */ { AH_TRUE, CCK, 11000, 0x18, 0x04, (0x80|22), 3 }, 143/* remove rates 6, 9 from rate ctrl */ 144/* 6 Mb */ { AH_FALSE, OFDM, 6000, 0x0b, 0x00, 12, 4 }, 145/* 9 Mb */ { AH_FALSE, OFDM, 9000, 0x0f, 0x00, 18, 4 }, 146/* 12 Mb */ { AH_TRUE, OFDM, 12000, 0x0a, 0x00, 24, 6 }, 147/* 18 Mb */ { AH_TRUE, OFDM, 18000, 0x0e, 0x00, 36, 6 }, 148/* 24 Mb */ { AH_TRUE, OFDM, 24000, 0x09, 0x00, 48, 8 }, 149/* 36 Mb */ { AH_TRUE, OFDM, 36000, 0x0d, 0x00, 72, 8 }, 150/* 48 Mb */ { AH_TRUE, OFDM, 48000, 0x08, 0x00, 96, 8 }, 151/* 54 Mb */ { AH_TRUE, OFDM, 54000, 0x0c, 0x00, 108, 8 } 152 }, 153}; 154 155#undef OFDM 156#undef CCK 157#undef TURBO 158#undef XR 159 160const HAL_RATE_TABLE * 161ar5212GetRateTable(struct ath_hal *ah, u_int mode) 162{ 163 HAL_RATE_TABLE *rt; 164 switch (mode) { 165 case HAL_MODE_11A: 166 rt = &ar5212_11a_table; 167 break; 168 case HAL_MODE_11B: 169 rt = &ar5212_11b_table; 170 break; 171 case HAL_MODE_11G: 172#ifdef notdef 173 case HAL_MODE_PUREG: 174#endif 175 rt = &ar5212_11g_table; 176 break; 177 case HAL_MODE_108A: 178 case HAL_MODE_TURBO: 179 rt = &ar5212_turboa_table; 180 break; 181 case HAL_MODE_108G: 182 rt = &ar5212_turbog_table; 183 break; 184 case HAL_MODE_11A_HALF_RATE: 185 case HAL_MODE_11G_HALF_RATE: 186 rt = &ar5212_half_table; 187 break; 188 case HAL_MODE_11A_QUARTER_RATE: 189 case HAL_MODE_11G_QUARTER_RATE: 190 rt = &ar5212_quarter_table; 191 break; 192 default: 193 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid mode 0x%x\n", 194 __func__, mode); 195 return AH_NULL; 196 } 197 ath_hal_setupratetable(ah, rt); 198 return rt; 199} 200