sys/external/isc/atheros_hal/dist/ar5211/ar5211_phy.c

   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  * $Id: ar5211_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 "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, 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 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,   6000,    0x0b,    0x00, (0x80|12),   0, 0, 0 },
  55 /*   9 Mb */ {  AH_TRUE, TURBO,   9000,    0x0f,    0x00,        18,   0, 0, 0 },
  56 /*  12 Mb */ {  AH_TRUE, TURBO,  12000,    0x0a,    0x00, (0x80|24),   2, 0, 0 },
  57 /*  18 Mb */ {  AH_TRUE, TURBO,  18000,    0x0e,    0x00,        36,   2, 0, 0 },
  58 /*  24 Mb */ {  AH_TRUE, TURBO,  24000,    0x09,    0x00, (0x80|48),   4, 0, 0 },
  59 /*  36 Mb */ {  AH_TRUE, TURBO,  36000,    0x0d,    0x00,        72,   4, 0, 0 },
  60 /*  48 Mb */ {  AH_TRUE, TURBO,  48000,    0x08,    0x00,        96,   4, 0, 0 },
  61 /*  54 Mb */ {  AH_TRUE, TURBO,  54000,    0x0c,    0x00,       108,   4, 0, 0 }
  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, 0, 0 },
  72 /*   2 Mb */ {  AH_TRUE,  CCK,    2000,    0x0a,    0x04, (0x80| 4),   1, 0, 0 },
  73 /* 5.5 Mb */ {  AH_TRUE,  CCK,    5500,    0x09,    0x04, (0x80|11),   1, 0, 0 },
  74 /*  11 Mb */ {  AH_TRUE,  CCK,   11000,    0x08,    0x04, (0x80|22),   1, 0, 0 }
  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 }