1 /* 2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 3 * Copyright (c) 2002-2006 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 "ar5211/ar5211.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 ar5211_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 }, 38 /* 9 Mb */ { AH_TRUE, OFDM, 9000, 0x0f, 0x00, 18, 0 }, 39 /* 12 Mb */ { AH_TRUE, OFDM, 12000, 0x0a, 0x00, (0x80|24), 2 }, 40 /* 18 Mb */ { AH_TRUE, OFDM, 18000, 0x0e, 0x00, 36, 2 }, 41 /* 24 Mb */ { AH_TRUE, OFDM, 24000, 0x09, 0x00, (0x80|48), 4 }, 42 /* 36 Mb */ { AH_TRUE, OFDM, 36000, 0x0d, 0x00, 72, 4 }, 43 /* 48 Mb */ { AH_TRUE, OFDM, 48000, 0x08, 0x00, 96, 4 }, 44 /* 54 Mb */ { AH_TRUE, OFDM, 54000, 0x0c, 0x00, 108, 4 } 45 }, 46 }; 47 48 HAL_RATE_TABLE ar5211_turbo_table = { 49 8, /* number of rates */ 50 { 0 }, 51 { 52 /* short ctrl */ 53 /* valid rateCode Preamble dot11Rate Rate */ 54 /* 6 Mb */ { AH_TRUE, TURBO, 12000, 0x0b, 0x00, (0x80|12), 0 }, 55 /* 9 Mb */ { AH_TRUE, TURBO, 18000, 0x0f, 0x00, 18, 0 }, 56 /* 12 Mb */ { AH_TRUE, TURBO, 24000, 0x0a, 0x00, (0x80|24), 2 }, 57 /* 18 Mb */ { AH_TRUE, TURBO, 36000, 0x0e, 0x00, 36, 2 }, 58 /* 24 Mb */ { AH_TRUE, TURBO, 48000, 0x09, 0x00, (0x80|48), 4 }, 59 /* 36 Mb */ { AH_TRUE, TURBO, 72000, 0x0d, 0x00, 72, 4 }, 60 /* 48 Mb */ { AH_TRUE, TURBO, 96000, 0x08, 0x00, 96, 4 }, 61 /* 54 Mb */ { AH_TRUE, TURBO, 108000, 0x0c, 0x00, 108, 4 } 62 }, 63 }; 64 65 HAL_RATE_TABLE ar5211_11b_table = { 66 4, /* number of rates */ 67 { 0 }, 68 { 69 /* short ctrl */ 70 /* valid rateCode Preamble dot11Rate Rate */ 71 /* 1 Mb */ { AH_TRUE, CCK, 1000, 0x0b, 0x00, (0x80| 2), 0 }, 72 /* 2 Mb */ { AH_TRUE, CCK, 2000, 0x0a, 0x04, (0x80| 4), 1 }, 73 /* 5.5 Mb */ { AH_TRUE, CCK, 5500, 0x09, 0x04, (0x80|11), 1 }, 74 /* 11 Mb */ { AH_TRUE, CCK, 11000, 0x08, 0x04, (0x80|22), 1 } 75 }, 76 }; 77 78 #undef OFDM 79 #undef CCK 80 #undef TURBO 81 82 83 const HAL_RATE_TABLE * 84 ar5211GetRateTable(struct ath_hal *ah, u_int mode) 85 { 86 HAL_RATE_TABLE *rt; 87 switch (mode) { 88 case HAL_MODE_11A: 89 rt = &ar5211_11a_table; 90 break; 91 case HAL_MODE_11B: 92 rt = &ar5211_11b_table; 93 break; 94 case HAL_MODE_TURBO: 95 rt = &ar5211_turbo_table; 96 break; 97 default: 98 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid mode 0x%x\n", 99 __func__, mode); 100 return AH_NULL; 101 } 102 ath_hal_setupratetable(ah, rt); 103 return rt; 104 } 105