sys/dev/netif/ath/hal/ath_hal/ar5210/ar5210_phy.c

   1 /*
   2  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
   3  * Copyright (c) 2002-2004 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: head/sys/dev/ath/ath_hal/ar5210/ar5210_phy.c 191022 2009-04-13 21:01:08Z sam $
  18  */
  19 #include "opt_ah.h"
  20
  21 #include "ah.h"
  22 #include "ah_internal.h"
  23
  24 #include "ar5210/ar5210.h"
  25
  26 /* shorthands to compact tables for readability */
  27 #define OFDM    IEEE80211_T_OFDM
  28 #define TURBO   IEEE80211_T_TURBO
  29
  30 HAL_RATE_TABLE ar5210_11a_table = {
  31         8,  /* number of rates */
  32         { 0 },
  33         {
  34 /*                                                  short            ctrl  */
  35 /*                valid                 rateCode Preamble  dot11Rate Rate */
  36 /*   6 Mb */ {  AH_TRUE, OFDM,    6000,     0x0b,    0x00, (0x80|12),   0 },
  37 /*   9 Mb */ {  AH_TRUE, OFDM,    9000,     0x0f,    0x00,        18,   0 },
  38 /*  12 Mb */ {  AH_TRUE, OFDM,   12000,     0x0a,    0x00, (0x80|24),   2 },
  39 /*  18 Mb */ {  AH_TRUE, OFDM,   18000,     0x0e,    0x00,        36,   2 },
  40 /*  24 Mb */ {  AH_TRUE, OFDM,   24000,     0x09,    0x00, (0x80|48),   4 },
  41 /*  36 Mb */ {  AH_TRUE, OFDM,   36000,     0x0d,    0x00,        72,   4 },
  42 /*  48 Mb */ {  AH_TRUE, OFDM,   48000,     0x08,    0x00,        96,   4 },
  43 /*  54 Mb */ {  AH_TRUE, OFDM,   54000,     0x0c,    0x00,       108,   4 }
  44         },
  45 };
  46
  47 HAL_RATE_TABLE ar5210_turbo_table = {
  48         8,  /* number of rates */
  49         { 0 },
  50         {
  51 /*                                                 short            ctrl  */
  52 /*                valid                rateCode Preamble  dot11Rate Rate */
  53 /*   6 Mb */ {  AH_TRUE, TURBO,  12000,    0x0b,    0x00, (0x80|12),   0 },
  54 /*   9 Mb */ {  AH_TRUE, TURBO,  18000,    0x0f,    0x00,        18,   0 },
  55 /*  12 Mb */ {  AH_TRUE, TURBO,  24000,    0x0a,    0x00, (0x80|24),   2 },
  56 /*  18 Mb */ {  AH_TRUE, TURBO,  36000,    0x0e,    0x00,        36,   2 },
  57 /*  24 Mb */ {  AH_TRUE, TURBO,  48000,    0x09,    0x00, (0x80|48),   4 },
  58 /*  36 Mb */ {  AH_TRUE, TURBO,  72000,    0x0d,    0x00,        72,   4 },
  59 /*  48 Mb */ {  AH_TRUE, TURBO,  96000,    0x08,    0x00,        96,   4 },
  60 /*  54 Mb */ {  AH_TRUE, TURBO, 108000,    0x0c,    0x00,       108,   4 }
  61         },
  62 };
  63
  64 #undef  OFDM
  65 #undef  TURBO
  66
  67 const HAL_RATE_TABLE *
  68 ar5210GetRateTable(struct ath_hal *ah, u_int mode)
  69 {
  70         HAL_RATE_TABLE *rt;
  71         switch (mode) {
  72         case HAL_MODE_11A:
  73                 rt = &ar5210_11a_table;
  74                 break;
  75         case HAL_MODE_TURBO:
  76                 rt =  &ar5210_turbo_table;
  77                 break;
  78         default:
  79                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid mode 0x%x\n",
  80                     __func__, mode);
  81                 return AH_NULL;
  82         }
  83         ath_hal_setupratetable(ah, rt);
  84         return rt;
  85 }