sys/external/isc/atheros_hal/dist/ar5212/ar5212_phy.c

   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 }