1 /* 2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 3 * Copyright (c) 2002-2008 Atheros Communications, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 * 17 * $FreeBSD$ 18 */ 19 #include "opt_ah.h" 20 21 #include "ah.h" 22 #include "ah_internal.h" 23 24 #include "ar5212/ar5212.h" 25 26 /* shorthands to compact tables for readability */ 27 #define OFDM IEEE80211_T_OFDM 28 #define CCK IEEE80211_T_CCK 29 #define TURBO IEEE80211_T_TURBO 30 #define HALF IEEE80211_T_OFDM_HALF 31 #define QUART IEEE80211_T_OFDM_QUARTER 32 33 HAL_RATE_TABLE ar5212_11a_table = { 34 8, /* number of rates */ 35 { 0 }, 36 { 37 /* short ctrl */ 38 /* valid rateCode Preamble dot11Rate Rate */ 39 /* 6 Mb */ { AH_TRUE, OFDM, 6000, 0x0b, 0x00, (0x80|12), 0 }, 40 /* 9 Mb */ { AH_TRUE, OFDM, 9000, 0x0f, 0x00, 18, 0 }, 41 /* 12 Mb */ { AH_TRUE, OFDM, 12000, 0x0a, 0x00, (0x80|24), 2 }, 42 /* 18 Mb */ { AH_TRUE, OFDM, 18000, 0x0e, 0x00, 36, 2 }, 43 /* 24 Mb */ { AH_TRUE, OFDM, 24000, 0x09, 0x00, (0x80|48), 4 }, 44 /* 36 Mb */ { AH_TRUE, OFDM, 36000, 0x0d, 0x00, 72, 4 }, 45 /* 48 Mb */ { AH_TRUE, OFDM, 48000, 0x08, 0x00, 96, 4 }, 46 /* 54 Mb */ { AH_TRUE, OFDM, 54000, 0x0c, 0x00, 108, 4 } 47 }, 48 }; 49 50 HAL_RATE_TABLE ar5212_half_table = { 51 8, /* number of rates */ 52 { 0 }, 53 { 54 /* short ctrl */ 55 /* valid rateCode Preamble dot11Rate Rate */ 56 /* 3 Mb */ { AH_TRUE, HALF, 3000, 0x0b, 0x00, (0x80|6), 0 }, 57 /* 4.5 Mb */ { AH_TRUE, HALF, 4500, 0x0f, 0x00, 9, 0 }, 58 /* 6 Mb */ { AH_TRUE, HALF, 6000, 0x0a, 0x00, (0x80|12), 2 }, 59 /* 9 Mb */ { AH_TRUE, HALF, 9000, 0x0e, 0x00, 18, 2 }, 60 /* 12 Mb */ { AH_TRUE, HALF, 12000, 0x09, 0x00, (0x80|24), 4 }, 61 /* 18 Mb */ { AH_TRUE, HALF, 18000, 0x0d, 0x00, 36, 4 }, 62 /* 24 Mb */ { AH_TRUE, HALF, 24000, 0x08, 0x00, 48, 4 }, 63 /* 27 Mb */ { AH_TRUE, HALF, 27000, 0x0c, 0x00, 54, 4 } 64 }, 65 }; 66 67 HAL_RATE_TABLE ar5212_quarter_table = { 68 8, /* number of rates */ 69 { 0 }, 70 { 71 /* short ctrl */ 72 /* valid rateCode Preamble dot11Rate Rate */ 73 /* 1.5 Mb */ { AH_TRUE, QUART, 1500, 0x0b, 0x00, (0x80|3), 0 }, 74 /* 2 Mb */ { AH_TRUE, QUART, 2250, 0x0f, 0x00, 4, 0 }, 75 /* 3 Mb */ { AH_TRUE, QUART, 3000, 0x0a, 0x00, (0x80|6), 2 }, 76 /* 4.5 Mb */ { AH_TRUE, QUART, 4500, 0x0e, 0x00, 9, 2 }, 77 /* 6 Mb */ { AH_TRUE, QUART, 6000, 0x09, 0x00, (0x80|12), 4 }, 78 /* 9 Mb */ { AH_TRUE, QUART, 9000, 0x0d, 0x00, 18, 4 }, 79 /* 12 Mb */ { AH_TRUE, QUART, 12000, 0x08, 0x00, 24, 4 }, 80 /*13.5 Mb */ { AH_TRUE, QUART, 13500, 0x0c, 0x00, 27, 4 } 81 }, 82 }; 83 84 HAL_RATE_TABLE ar5212_turbog_table = { 85 7, /* number of rates */ 86 { 0 }, 87 { 88 /* short ctrl */ 89 /* valid rateCode Preamble dot11Rate Rate */ 90 /* 6 Mb */ { AH_TRUE, TURBO, 12000, 0x0b, 0x00, (0x80|12), 0 }, 91 /* 12 Mb */ { AH_TRUE, TURBO, 24000, 0x0a, 0x00, (0x80|24), 1 }, 92 /* 18 Mb */ { AH_TRUE, TURBO, 36000, 0x0e, 0x00, 36, 1 }, 93 /* 24 Mb */ { AH_TRUE, TURBO, 48000, 0x09, 0x00, (0x80|48), 2 }, 94 /* 36 Mb */ { AH_TRUE, TURBO, 72000, 0x0d, 0x00, 72, 2 }, 95 /* 48 Mb */ { AH_TRUE, TURBO, 96000, 0x08, 0x00, 96, 2 }, 96 /* 54 Mb */ { AH_TRUE, TURBO, 108000, 0x0c, 0x00, 108, 2 } 97 }, 98 }; 99 100 HAL_RATE_TABLE ar5212_turboa_table = { 101 8, /* number of rates */ 102 { 0 }, 103 { 104 /* short ctrl */ 105 /* valid rateCode Preamble dot11Rate Rate */ 106 /* 6 Mb */ { AH_TRUE, TURBO, 12000, 0x0b, 0x00, (0x80|12), 0 }, 107 /* 9 Mb */ { AH_TRUE, TURBO, 18000, 0x0f, 0x00, 18, 0 }, 108 /* 12 Mb */ { AH_TRUE, TURBO, 24000, 0x0a, 0x00, (0x80|24), 2 }, 109 /* 18 Mb */ { AH_TRUE, TURBO, 36000, 0x0e, 0x00, 36, 2 }, 110 /* 24 Mb */ { AH_TRUE, TURBO, 48000, 0x09, 0x00, (0x80|48), 4 }, 111 /* 36 Mb */ { AH_TRUE, TURBO, 72000, 0x0d, 0x00, 72, 4 }, 112 /* 48 Mb */ { AH_TRUE, TURBO, 96000, 0x08, 0x00, 96, 4 }, 113 /* 54 Mb */ { AH_TRUE, TURBO, 108000, 0x0c, 0x00, 108, 4 } 114 }, 115 }; 116 117 HAL_RATE_TABLE ar5212_11b_table = { 118 4, /* number of rates */ 119 { 0 }, 120 { 121 /* short ctrl */ 122 /* valid rateCode Preamble dot11Rate Rate */ 123 /* 1 Mb */ { AH_TRUE, CCK, 1000, 0x1b, 0x00, (0x80| 2), 0 }, 124 /* 2 Mb */ { AH_TRUE, CCK, 2000, 0x1a, 0x04, (0x80| 4), 1 }, 125 /* 5.5 Mb */ { AH_TRUE, CCK, 5500, 0x19, 0x04, (0x80|11), 1 }, 126 /* 11 Mb */ { AH_TRUE, CCK, 11000, 0x18, 0x04, (0x80|22), 1 } 127 }, 128 }; 129 130 131 /* Venice TODO: roundUpRate() is broken when the rate table does not represent rates 132 * in increasing order e.g. 5.5, 11, 6, 9. 133 * An average rate of 6 Mbps will currently map to 11 Mbps. 134 */ 135 HAL_RATE_TABLE ar5212_11g_table = { 136 12, /* number of rates */ 137 { 0 }, 138 { 139 /* short ctrl */ 140 /* valid rateCode Preamble dot11Rate Rate */ 141 /* 1 Mb */ { AH_TRUE, CCK, 1000, 0x1b, 0x00, (0x80| 2), 0 }, 142 /* 2 Mb */ { AH_TRUE, CCK, 2000, 0x1a, 0x04, (0x80| 4), 1 }, 143 /* 5.5 Mb */ { AH_TRUE, CCK, 5500, 0x19, 0x04, (0x80|11), 2 }, 144 /* 11 Mb */ { AH_TRUE, CCK, 11000, 0x18, 0x04, (0x80|22), 3 }, 145 /* remove rates 6, 9 from rate ctrl */ 146 /* 6 Mb */ { AH_FALSE, OFDM, 6000, 0x0b, 0x00, 12, 4 }, 147 /* 9 Mb */ { AH_FALSE, OFDM, 9000, 0x0f, 0x00, 18, 4 }, 148 /* 12 Mb */ { AH_TRUE, OFDM, 12000, 0x0a, 0x00, 24, 6 }, 149 /* 18 Mb */ { AH_TRUE, OFDM, 18000, 0x0e, 0x00, 36, 6 }, 150 /* 24 Mb */ { AH_TRUE, OFDM, 24000, 0x09, 0x00, 48, 8 }, 151 /* 36 Mb */ { AH_TRUE, OFDM, 36000, 0x0d, 0x00, 72, 8 }, 152 /* 48 Mb */ { AH_TRUE, OFDM, 48000, 0x08, 0x00, 96, 8 }, 153 /* 54 Mb */ { AH_TRUE, OFDM, 54000, 0x0c, 0x00, 108, 8 } 154 }, 155 }; 156 157 #undef OFDM 158 #undef CCK 159 #undef TURBO 160 #undef XR 161 162 const HAL_RATE_TABLE * 163 ar5212GetRateTable(struct ath_hal *ah, u_int mode) 164 { 165 HAL_RATE_TABLE *rt; 166 switch (mode) { 167 case HAL_MODE_11A: 168 rt = &ar5212_11a_table; 169 break; 170 case HAL_MODE_11B: 171 rt = &ar5212_11b_table; 172 break; 173 case HAL_MODE_11G: 174 #ifdef notdef 175 case HAL_MODE_PUREG: 176 #endif 177 rt = &ar5212_11g_table; 178 break; 179 case HAL_MODE_108A: 180 case HAL_MODE_TURBO: 181 rt = &ar5212_turboa_table; 182 break; 183 case HAL_MODE_108G: 184 rt = &ar5212_turbog_table; 185 break; 186 case HAL_MODE_11A_HALF_RATE: 187 case HAL_MODE_11G_HALF_RATE: 188 rt = &ar5212_half_table; 189 break; 190 case HAL_MODE_11A_QUARTER_RATE: 191 case HAL_MODE_11G_QUARTER_RATE: 192 rt = &ar5212_quarter_table; 193 break; 194 default: 195 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid mode 0x%x\n", 196 __func__, mode); 197 return AH_NULL; 198 } 199 ath_hal_setupratetable(ah, rt); 200 return rt; 201 } 202