ar5212_phy.c

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

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FreeBSD/Linux Kernel Cross Reference sys/dev/ath/ath_hal/ar5212/ar5212_phy.c

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sys/dev/ath/ath_hal/ar5212/ar5212_phy.c