2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
3 * Copyright (c) 2002-2008 Atheros Communications, Inc.
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.
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.
17 * $FreeBSD: head/sys/dev/ath/ath_hal/ar5212/ar5212_phy.c 191022 2009-04-13 21:01:08Z sam $
22 #include "ah_internal.h"
24 #include "ar5212/ar5212.h"
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 #define HALF IEEE80211_T_OFDM_HALF
31 #define QUART IEEE80211_T_OFDM_QUARTER
33 HAL_RATE_TABLE ar5212_11a_table
= {
34 8, /* number of rates */
38 /* valid rateCode Preamble dot11Rate Rate */
39 /* 6 Mb */ { AH_TRUE
, OFDM
, 6000, 0x0b, 0x00, (0x80|12), 0 },
40 /* 9 Mb */ { AH_TRUE
, OFDM
, 9000, 0x0f, 0x00, 18, 0 },
41 /* 12 Mb */ { AH_TRUE
, OFDM
, 12000, 0x0a, 0x00, (0x80|24), 2 },
42 /* 18 Mb */ { AH_TRUE
, OFDM
, 18000, 0x0e, 0x00, 36, 2 },
43 /* 24 Mb */ { AH_TRUE
, OFDM
, 24000, 0x09, 0x00, (0x80|48), 4 },
44 /* 36 Mb */ { AH_TRUE
, OFDM
, 36000, 0x0d, 0x00, 72, 4 },
45 /* 48 Mb */ { AH_TRUE
, OFDM
, 48000, 0x08, 0x00, 96, 4 },
46 /* 54 Mb */ { AH_TRUE
, OFDM
, 54000, 0x0c, 0x00, 108, 4 }
50 HAL_RATE_TABLE ar5212_half_table
= {
51 8, /* number of rates */
55 /* valid rateCode Preamble dot11Rate Rate */
56 /* 3 Mb */ { AH_TRUE
, HALF
, 3000, 0x0b, 0x00, (0x80|6), 0 },
57 /* 4.5 Mb */ { AH_TRUE
, HALF
, 4500, 0x0f, 0x00, 9, 0 },
58 /* 6 Mb */ { AH_TRUE
, HALF
, 6000, 0x0a, 0x00, (0x80|12), 2 },
59 /* 9 Mb */ { AH_TRUE
, HALF
, 9000, 0x0e, 0x00, 18, 2 },
60 /* 12 Mb */ { AH_TRUE
, HALF
, 12000, 0x09, 0x00, (0x80|24), 4 },
61 /* 18 Mb */ { AH_TRUE
, HALF
, 18000, 0x0d, 0x00, 36, 4 },
62 /* 24 Mb */ { AH_TRUE
, HALF
, 24000, 0x08, 0x00, 48, 4 },
63 /* 27 Mb */ { AH_TRUE
, HALF
, 27000, 0x0c, 0x00, 54, 4 }
67 HAL_RATE_TABLE ar5212_quarter_table
= {
68 8, /* number of rates */
72 /* valid rateCode Preamble dot11Rate Rate */
73 /* 1.5 Mb */ { AH_TRUE
, QUART
, 1500, 0x0b, 0x00, (0x80|3), 0 },
74 /* 2 Mb */ { AH_TRUE
, QUART
, 2250, 0x0f, 0x00, 4, 0 },
75 /* 3 Mb */ { AH_TRUE
, QUART
, 3000, 0x0a, 0x00, (0x80|6), 2 },
76 /* 4.5 Mb */ { AH_TRUE
, QUART
, 4500, 0x0e, 0x00, 9, 2 },
77 /* 6 Mb */ { AH_TRUE
, QUART
, 6000, 0x09, 0x00, (0x80|12), 4 },
78 /* 9 Mb */ { AH_TRUE
, QUART
, 9000, 0x0d, 0x00, 18, 4 },
79 /* 12 Mb */ { AH_TRUE
, QUART
, 12000, 0x08, 0x00, 24, 4 },
80 /*13.5 Mb */ { AH_TRUE
, QUART
, 13500, 0x0c, 0x00, 27, 4 }
84 HAL_RATE_TABLE ar5212_turbog_table
= {
85 7, /* number of rates */
89 /* valid rateCode Preamble dot11Rate Rate */
90 /* 6 Mb */ { AH_TRUE
, TURBO
, 12000, 0x0b, 0x00, (0x80|12), 0 },
91 /* 12 Mb */ { AH_TRUE
, TURBO
, 24000, 0x0a, 0x00, (0x80|24), 1 },
92 /* 18 Mb */ { AH_TRUE
, TURBO
, 36000, 0x0e, 0x00, 36, 1 },
93 /* 24 Mb */ { AH_TRUE
, TURBO
, 48000, 0x09, 0x00, (0x80|48), 2 },
94 /* 36 Mb */ { AH_TRUE
, TURBO
, 72000, 0x0d, 0x00, 72, 2 },
95 /* 48 Mb */ { AH_TRUE
, TURBO
, 96000, 0x08, 0x00, 96, 2 },
96 /* 54 Mb */ { AH_TRUE
, TURBO
, 108000, 0x0c, 0x00, 108, 2 }
100 HAL_RATE_TABLE ar5212_turboa_table
= {
101 8, /* number of rates */
105 /* valid rateCode Preamble dot11Rate Rate */
106 /* 6 Mb */ { AH_TRUE
, TURBO
, 12000, 0x0b, 0x00, (0x80|12), 0 },
107 /* 9 Mb */ { AH_TRUE
, TURBO
, 18000, 0x0f, 0x00, 18, 0 },
108 /* 12 Mb */ { AH_TRUE
, TURBO
, 24000, 0x0a, 0x00, (0x80|24), 2 },
109 /* 18 Mb */ { AH_TRUE
, TURBO
, 36000, 0x0e, 0x00, 36, 2 },
110 /* 24 Mb */ { AH_TRUE
, TURBO
, 48000, 0x09, 0x00, (0x80|48), 4 },
111 /* 36 Mb */ { AH_TRUE
, TURBO
, 72000, 0x0d, 0x00, 72, 4 },
112 /* 48 Mb */ { AH_TRUE
, TURBO
, 96000, 0x08, 0x00, 96, 4 },
113 /* 54 Mb */ { AH_TRUE
, TURBO
, 108000, 0x0c, 0x00, 108, 4 }
117 HAL_RATE_TABLE ar5212_11b_table
= {
118 4, /* number of rates */
122 /* valid rateCode Preamble dot11Rate Rate */
123 /* 1 Mb */ { AH_TRUE
, CCK
, 1000, 0x1b, 0x00, (0x80| 2), 0 },
124 /* 2 Mb */ { AH_TRUE
, CCK
, 2000, 0x1a, 0x04, (0x80| 4), 1 },
125 /* 5.5 Mb */ { AH_TRUE
, CCK
, 5500, 0x19, 0x04, (0x80|11), 1 },
126 /* 11 Mb */ { AH_TRUE
, CCK
, 11000, 0x18, 0x04, (0x80|22), 1 }
131 /* Venice TODO: roundUpRate() is broken when the rate table does not represent rates
132 * in increasing order e.g. 5.5, 11, 6, 9.
133 * An average rate of 6 Mbps will currently map to 11 Mbps.
135 HAL_RATE_TABLE ar5212_11g_table
= {
136 12, /* number of rates */
140 /* valid rateCode Preamble dot11Rate Rate */
141 /* 1 Mb */ { AH_TRUE
, CCK
, 1000, 0x1b, 0x00, (0x80| 2), 0 },
142 /* 2 Mb */ { AH_TRUE
, CCK
, 2000, 0x1a, 0x04, (0x80| 4), 1 },
143 /* 5.5 Mb */ { AH_TRUE
, CCK
, 5500, 0x19, 0x04, (0x80|11), 2 },
144 /* 11 Mb */ { AH_TRUE
, CCK
, 11000, 0x18, 0x04, (0x80|22), 3 },
145 /* remove rates 6, 9 from rate ctrl */
146 /* 6 Mb */ { AH_FALSE
, OFDM
, 6000, 0x0b, 0x00, 12, 4 },
147 /* 9 Mb */ { AH_FALSE
, OFDM
, 9000, 0x0f, 0x00, 18, 4 },
148 /* 12 Mb */ { AH_TRUE
, OFDM
, 12000, 0x0a, 0x00, 24, 6 },
149 /* 18 Mb */ { AH_TRUE
, OFDM
, 18000, 0x0e, 0x00, 36, 6 },
150 /* 24 Mb */ { AH_TRUE
, OFDM
, 24000, 0x09, 0x00, 48, 8 },
151 /* 36 Mb */ { AH_TRUE
, OFDM
, 36000, 0x0d, 0x00, 72, 8 },
152 /* 48 Mb */ { AH_TRUE
, OFDM
, 48000, 0x08, 0x00, 96, 8 },
153 /* 54 Mb */ { AH_TRUE
, OFDM
, 54000, 0x0c, 0x00, 108, 8 }
162 const HAL_RATE_TABLE
*
163 ar5212GetRateTable(struct ath_hal
*ah
, u_int mode
)
168 rt
= &ar5212_11a_table
;
171 rt
= &ar5212_11b_table
;
177 rt
= &ar5212_11g_table
;
181 rt
= &ar5212_turboa_table
;
184 rt
= &ar5212_turbog_table
;
186 case HAL_MODE_11A_HALF_RATE
:
187 case HAL_MODE_11G_HALF_RATE
:
188 rt
= &ar5212_half_table
;
190 case HAL_MODE_11A_QUARTER_RATE
:
191 case HAL_MODE_11G_QUARTER_RATE
:
192 rt
= &ar5212_quarter_table
;
195 HALDEBUG(ah
, HAL_DEBUG_ANY
, "%s: invalid mode 0x%x\n",
199 ath_hal_setupratetable(ah
, rt
);