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 #include "opt_ah.h"
20
21 #include "ah.h"
22 #include "ah_internal.h"
23
24 #include "ar5212/ar5212.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 #define HALF IEEE80211_T_OFDM_HALF
31 #define QUART IEEE80211_T_OFDM_QUARTER
32
33 HAL_RATE_TABLE ar5212_11a_table = {
34 8, /* number of rates */
35 { 0 },
36 {
37 /* short ctrl */
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 }
47 },
48 };
49
50 HAL_RATE_TABLE ar5212_half_table = {
51 8, /* number of rates */
52 { 0 },
53 {
54 /* short ctrl */
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 }
64 },
65 };
66
67 HAL_RATE_TABLE ar5212_quarter_table = {
68 8, /* number of rates */
69 { 0 },
70 {
71 /* short ctrl */
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 }
81 },
82 };
83
84 HAL_RATE_TABLE ar5212_turbog_table = {
85 7, /* number of rates */
86 { 0 },
87 {
88 /* short ctrl */
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 }
97 },
98 };
99
100 HAL_RATE_TABLE ar5212_turboa_table = {
101 8, /* number of rates */
102 { 0 },
103 {
104 /* short ctrl */
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 }
114 },
115 };
116
117 HAL_RATE_TABLE ar5212_11b_table = {
118 4, /* number of rates */
119 { 0 },
120 {
121 /* short ctrl */
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 }
127 },
128 };
129
130 /* Venice TODO: roundUpRate() is broken when the rate table does not represent rates
131 * in increasing order e.g. 5.5, 11, 6, 9.
132 * An average rate of 6 Mbps will currently map to 11 Mbps.
133 */
134 HAL_RATE_TABLE ar5212_11g_table = {
135 12, /* number of rates */
136 { 0 },
137 {
138 /* short ctrl */
139 /* valid rateCode Preamble dot11Rate Rate */
140 /* 1 Mb */ { AH_TRUE, CCK, 1000, 0x1b, 0x00, (0x80| 2), 0 },
141 /* 2 Mb */ { AH_TRUE, CCK, 2000, 0x1a, 0x04, (0x80| 4), 1 },
142 /* 5.5 Mb */ { AH_TRUE, CCK, 5500, 0x19, 0x04, (0x80|11), 2 },
143 /* 11 Mb */ { AH_TRUE, CCK, 11000, 0x18, 0x04, (0x80|22), 3 },
144 /* remove rates 6, 9 from rate ctrl */
145 /* 6 Mb */ { AH_FALSE, OFDM, 6000, 0x0b, 0x00, 12, 4 },
146 /* 9 Mb */ { AH_FALSE, OFDM, 9000, 0x0f, 0x00, 18, 4 },
147 /* 12 Mb */ { AH_TRUE, OFDM, 12000, 0x0a, 0x00, 24, 6 },
148 /* 18 Mb */ { AH_TRUE, OFDM, 18000, 0x0e, 0x00, 36, 6 },
149 /* 24 Mb */ { AH_TRUE, OFDM, 24000, 0x09, 0x00, 48, 8 },
150 /* 36 Mb */ { AH_TRUE, OFDM, 36000, 0x0d, 0x00, 72, 8 },
151 /* 48 Mb */ { AH_TRUE, OFDM, 48000, 0x08, 0x00, 96, 8 },
152 /* 54 Mb */ { AH_TRUE, OFDM, 54000, 0x0c, 0x00, 108, 8 }
153 },
154 };
155
156 #undef OFDM
157 #undef CCK
158 #undef TURBO
159 #undef XR
160
161 const HAL_RATE_TABLE *
ar5212GetRateTable(struct ath_hal * ah,u_int mode)162 ar5212GetRateTable(struct ath_hal *ah, u_int mode)
163 {
164 HAL_RATE_TABLE *rt;
165 switch (mode) {
166 case HAL_MODE_11A:
167 rt = &ar5212_11a_table;
168 break;
169 case HAL_MODE_11B:
170 rt = &ar5212_11b_table;
171 break;
172 case HAL_MODE_11G:
173 #ifdef notdef
174 case HAL_MODE_PUREG:
175 #endif
176 rt = &ar5212_11g_table;
177 break;
178 case HAL_MODE_108A:
179 case HAL_MODE_TURBO:
180 rt = &ar5212_turboa_table;
181 break;
182 case HAL_MODE_108G:
183 rt = &ar5212_turbog_table;
184 break;
185 case HAL_MODE_11A_HALF_RATE:
186 case HAL_MODE_11G_HALF_RATE:
187 rt = &ar5212_half_table;
188 break;
189 case HAL_MODE_11A_QUARTER_RATE:
190 case HAL_MODE_11G_QUARTER_RATE:
191 rt = &ar5212_quarter_table;
192 break;
193 default:
194 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid mode 0x%x\n",
195 __func__, mode);
196 return AH_NULL;
197 }
198 ath_hal_setupratetable(ah, rt);
199 return rt;
200 }
201