| 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 | * $Id: ar5212_phy.c,v 1.2 2008/12/11 05:30:29 alc Exp $ |
| 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 | |
| 31 | HAL_RATE_TABLE ar5212_11a_table = { |
| 32 | 8, /* number of rates */ |
| 33 | { 0 }, |
| 34 | { |
| 35 | /* short ctrl */ |
| 36 | /* valid rateCode Preamble dot11Rate Rate */ |
| 37 | /* 6 Mb */ { AH_TRUE, OFDM, 6000, 0x0b, 0x00, (0x80|12), 0, 0, 0 }, |
| 38 | /* 9 Mb */ { AH_TRUE, OFDM, 9000, 0x0f, 0x00, 18, 0, 0, 0 }, |
| 39 | /* 12 Mb */ { AH_TRUE, OFDM, 12000, 0x0a, 0x00, (0x80|24), 2, 0, 0 }, |
| 40 | /* 18 Mb */ { AH_TRUE, OFDM, 18000, 0x0e, 0x00, 36, 2, 0, 0 }, |
| 41 | /* 24 Mb */ { AH_TRUE, OFDM, 24000, 0x09, 0x00, (0x80|48), 4, 0, 0 }, |
| 42 | /* 36 Mb */ { AH_TRUE, OFDM, 36000, 0x0d, 0x00, 72, 4, 0, 0 }, |
| 43 | /* 48 Mb */ { AH_TRUE, OFDM, 48000, 0x08, 0x00, 96, 4, 0, 0 }, |
| 44 | /* 54 Mb */ { AH_TRUE, OFDM, 54000, 0x0c, 0x00, 108, 4, 0, 0 } |
| 45 | }, |
| 46 | }; |
| 47 | |
| 48 | HAL_RATE_TABLE ar5212_half_table = { |
| 49 | 8, /* number of rates */ |
| 50 | { 0 }, |
| 51 | { |
| 52 | /* short ctrl */ |
| 53 | /* valid rateCode Preamble dot11Rate Rate */ |
| 54 | /* 6 Mb */ { AH_TRUE, OFDM, 3000, 0x0b, 0x00, (0x80|6), 0, 0, 0 }, |
| 55 | /* 9 Mb */ { AH_TRUE, OFDM, 4500, 0x0f, 0x00, 9, 0, 0, 0 }, |
| 56 | /* 12 Mb */ { AH_TRUE, OFDM, 6000, 0x0a, 0x00, (0x80|12), 2, 0, 0 }, |
| 57 | /* 18 Mb */ { AH_TRUE, OFDM, 9000, 0x0e, 0x00, 18, 2, 0, 0 }, |
| 58 | /* 24 Mb */ { AH_TRUE, OFDM, 12000, 0x09, 0x00, (0x80|24), 4, 0, 0 }, |
| 59 | /* 36 Mb */ { AH_TRUE, OFDM, 18000, 0x0d, 0x00, 36, 4, 0, 0 }, |
| 60 | /* 48 Mb */ { AH_TRUE, OFDM, 24000, 0x08, 0x00, 48, 4, 0, 0 }, |
| 61 | /* 54 Mb */ { AH_TRUE, OFDM, 27000, 0x0c, 0x00, 54, 4, 0, 0 } |
| 62 | }, |
| 63 | }; |
| 64 | |
| 65 | HAL_RATE_TABLE ar5212_quarter_table = { |
| 66 | 8, /* number of rates */ |
| 67 | { 0 }, |
| 68 | { |
| 69 | /* short ctrl */ |
| 70 | /* valid rateCode Preamble dot11Rate Rate */ |
| 71 | /* 6 Mb */ { AH_TRUE, OFDM, 1500, 0x0b, 0x00, (0x80|3), 0, 0, 0 }, |
| 72 | /* 9 Mb */ { AH_TRUE, OFDM, 2250, 0x0f, 0x00, 4, 0, 0, 0 }, |
| 73 | /* 12 Mb */ { AH_TRUE, OFDM, 3000, 0x0a, 0x00, (0x80|6), 2, 0, 0 }, |
| 74 | /* 18 Mb */ { AH_TRUE, OFDM, 4500, 0x0e, 0x00, 9, 2, 0, 0 }, |
| 75 | /* 24 Mb */ { AH_TRUE, OFDM, 6000, 0x09, 0x00, (0x80|12), 4, 0, 0 }, |
| 76 | /* 36 Mb */ { AH_TRUE, OFDM, 9000, 0x0d, 0x00, 18, 4, 0, 0 }, |
| 77 | /* 48 Mb */ { AH_TRUE, OFDM, 12000, 0x08, 0x00, 24, 4, 0, 0 }, |
| 78 | /* 54 Mb */ { AH_TRUE, OFDM, 13500, 0x0c, 0x00, 27, 4, 0, 0 } |
| 79 | }, |
| 80 | }; |
| 81 | |
| 82 | HAL_RATE_TABLE ar5212_turbog_table = { |
| 83 | 7, /* number of rates */ |
| 84 | { 0 }, |
| 85 | { |
| 86 | /* short ctrl */ |
| 87 | /* valid rateCode Preamble dot11Rate Rate */ |
| 88 | /* 6 Mb */ { AH_TRUE, TURBO, 6000, 0x0b, 0x00, (0x80|12), 0, 0, 0 }, |
| 89 | /* 12 Mb */ { AH_TRUE, TURBO, 12000, 0x0a, 0x00, (0x80|24), 2, 0, 0 }, |
| 90 | /* 18 Mb */ { AH_TRUE, TURBO, 18000, 0x0e, 0x00, 36, 2, 0, 0 }, |
| 91 | /* 24 Mb */ { AH_TRUE, TURBO, 24000, 0x09, 0x00, (0x80|48), 3, 0, 0 }, |
| 92 | /* 36 Mb */ { AH_TRUE, TURBO, 36000, 0x0d, 0x00, 72, 3, 0, 0 }, |
| 93 | /* 48 Mb */ { AH_TRUE, TURBO, 48000, 0x08, 0x00, 96, 3, 0, 0 }, |
| 94 | /* 54 Mb */ { AH_TRUE, TURBO, 54000, 0x0c, 0x00, 108, 3, 0, 0 } |
| 95 | }, |
| 96 | }; |
| 97 | |
| 98 | HAL_RATE_TABLE ar5212_turboa_table = { |
| 99 | 8, /* number of rates */ |
| 100 | { 0 }, |
| 101 | { |
| 102 | /* short ctrl */ |
| 103 | /* valid rateCode Preamble dot11Rate Rate */ |
| 104 | /* 6 Mb */ { AH_TRUE, TURBO, 6000, 0x0b, 0x00, (0x80|12), 0, 0, 0 }, |
| 105 | /* 9 Mb */ { AH_TRUE, TURBO, 9000, 0x0f, 0x00, 18, 0, 0, 0 }, |
| 106 | /* 12 Mb */ { AH_TRUE, TURBO, 12000, 0x0a, 0x00, (0x80|24), 2, 0, 0 }, |
| 107 | /* 18 Mb */ { AH_TRUE, TURBO, 18000, 0x0e, 0x00, 36, 2, 0, 0 }, |
| 108 | /* 24 Mb */ { AH_TRUE, TURBO, 24000, 0x09, 0x00, (0x80|48), 4, 0, 0 }, |
| 109 | /* 36 Mb */ { AH_TRUE, TURBO, 36000, 0x0d, 0x00, 72, 4, 0, 0 }, |
| 110 | /* 48 Mb */ { AH_TRUE, TURBO, 48000, 0x08, 0x00, 96, 4, 0, 0 }, |
| 111 | /* 54 Mb */ { AH_TRUE, TURBO, 54000, 0x0c, 0x00, 108, 4, 0, 0 } |
| 112 | }, |
| 113 | }; |
| 114 | |
| 115 | HAL_RATE_TABLE ar5212_11b_table = { |
| 116 | 4, /* number of rates */ |
| 117 | { 0 }, |
| 118 | { |
| 119 | /* short ctrl */ |
| 120 | /* valid rateCode Preamble dot11Rate Rate */ |
| 121 | /* 1 Mb */ { AH_TRUE, CCK, 1000, 0x1b, 0x00, (0x80| 2), 0, 0, 0 }, |
| 122 | /* 2 Mb */ { AH_TRUE, CCK, 2000, 0x1a, 0x04, (0x80| 4), 1, 0, 0 }, |
| 123 | /* 5.5 Mb */ { AH_TRUE, CCK, 5500, 0x19, 0x04, (0x80|11), 1, 0, 0 }, |
| 124 | /* 11 Mb */ { AH_TRUE, CCK, 11000, 0x18, 0x04, (0x80|22), 1, 0, 0 } |
| 125 | }, |
| 126 | }; |
| 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 | */ |
| 133 | HAL_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, 0, 0 }, |
| 140 | /* 2 Mb */ { AH_TRUE, CCK, 2000, 0x1a, 0x04, (0x80| 4), 1, 0, 0 }, |
| 141 | /* 5.5 Mb */ { AH_TRUE, CCK, 5500, 0x19, 0x04, (0x80|11), 2, 0, 0 }, |
| 142 | /* 11 Mb */ { AH_TRUE, CCK, 11000, 0x18, 0x04, (0x80|22), 3, 0, 0 }, |
| 143 | /* remove rates 6, 9 from rate ctrl */ |
| 144 | /* 6 Mb */ { AH_FALSE, OFDM, 6000, 0x0b, 0x00, 12, 4, 0, 0 }, |
| 145 | /* 9 Mb */ { AH_FALSE, OFDM, 9000, 0x0f, 0x00, 18, 4, 0, 0 }, |
| 146 | /* 12 Mb */ { AH_TRUE, OFDM, 12000, 0x0a, 0x00, 24, 6, 0, 0 }, |
| 147 | /* 18 Mb */ { AH_TRUE, OFDM, 18000, 0x0e, 0x00, 36, 6, 0, 0 }, |
| 148 | /* 24 Mb */ { AH_TRUE, OFDM, 24000, 0x09, 0x00, 48, 8, 0, 0 }, |
| 149 | /* 36 Mb */ { AH_TRUE, OFDM, 36000, 0x0d, 0x00, 72, 8, 0, 0 }, |
| 150 | /* 48 Mb */ { AH_TRUE, OFDM, 48000, 0x08, 0x00, 96, 8, 0, 0 }, |
| 151 | /* 54 Mb */ { AH_TRUE, OFDM, 54000, 0x0c, 0x00, 108, 8, 0, 0 } |
| 152 | }, |
| 153 | }; |
| 154 | |
| 155 | #undef OFDM |
| 156 | #undef CCK |
| 157 | #undef TURBO |
| 158 | #undef XR |
| 159 | |
| 160 | const HAL_RATE_TABLE * |
| 161 | ar5212GetRateTable(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 | |