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      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  * $Id: ar5210_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 "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, 0, 0 },
     37 /*   9 Mb */ {  AH_TRUE, OFDM,    9000,     0x0f,    0x00,        18,   0, 0, 0 },
     38 /*  12 Mb */ {  AH_TRUE, OFDM,   12000,     0x0a,    0x00, (0x80|24),   2, 0, 0 },
     39 /*  18 Mb */ {  AH_TRUE, OFDM,   18000,     0x0e,    0x00,        36,   2, 0, 0 },
     40 /*  24 Mb */ {  AH_TRUE, OFDM,   24000,     0x09,    0x00, (0x80|48),   4, 0, 0 },
     41 /*  36 Mb */ {  AH_TRUE, OFDM,   36000,     0x0d,    0x00,        72,   4, 0, 0 },
     42 /*  48 Mb */ {  AH_TRUE, OFDM,   48000,     0x08,    0x00,        96,   4, 0, 0 },
     43 /*  54 Mb */ {  AH_TRUE, OFDM,   54000,     0x0c,    0x00,       108,   4, 0, 0 }
     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,   6000,    0x0b,    0x00, (0x80|12),   0, 0, 0 },
     54 /*   9 Mb */ {  AH_TRUE, TURBO,   9000,    0x0f,    0x00,        18,   0, 0, 0 },
     55 /*  12 Mb */ {  AH_TRUE, TURBO,  12000,    0x0a,    0x00, (0x80|24),   2, 0, 0 },
     56 /*  18 Mb */ {  AH_TRUE, TURBO,  18000,    0x0e,    0x00,        36,   2, 0, 0 },
     57 /*  24 Mb */ {  AH_TRUE, TURBO,  24000,    0x09,    0x00, (0x80|48),   4, 0, 0 },
     58 /*  36 Mb */ {  AH_TRUE, TURBO,  36000,    0x0d,    0x00,        72,   4, 0, 0 },
     59 /*  48 Mb */ {  AH_TRUE, TURBO,  48000,    0x08,    0x00,        96,   4, 0, 0 },
     60 /*  54 Mb */ {  AH_TRUE, TURBO,  54000,    0x0c,    0x00,       108,   4, 0, 0 }
     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 }
     86