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diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
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1/******************************************************************************
2 *
3 * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26
27#ifndef __iwl_3945_rs_h__
28#define __iwl_3945_rs_h__
29
30struct iwl3945_rate_info {
31 u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
32 u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
33 u8 prev_ieee; /* previous rate in IEEE speeds */
34 u8 next_ieee; /* next rate in IEEE speeds */
35 u8 prev_rs; /* previous rate used in rs algo */
36 u8 next_rs; /* next rate used in rs algo */
37 u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
38 u8 next_rs_tgg; /* next rate used in TGG rs algo */
39 u8 table_rs_index; /* index in rate scale table cmd */
40 u8 prev_table_rs; /* prev in rate table cmd */
41};
42
43/*
44 * These serve as indexes into
45 * struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT];
46 */
47enum {
48 IWL_RATE_1M_INDEX = 0,
49 IWL_RATE_2M_INDEX,
50 IWL_RATE_5M_INDEX,
51 IWL_RATE_11M_INDEX,
52 IWL_RATE_6M_INDEX,
53 IWL_RATE_9M_INDEX,
54 IWL_RATE_12M_INDEX,
55 IWL_RATE_18M_INDEX,
56 IWL_RATE_24M_INDEX,
57 IWL_RATE_36M_INDEX,
58 IWL_RATE_48M_INDEX,
59 IWL_RATE_54M_INDEX,
60 IWL_RATE_COUNT,
61 IWL_RATE_INVM_INDEX,
62 IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
63};
64
65enum {
66 IWL_RATE_6M_INDEX_TABLE = 0,
67 IWL_RATE_9M_INDEX_TABLE,
68 IWL_RATE_12M_INDEX_TABLE,
69 IWL_RATE_18M_INDEX_TABLE,
70 IWL_RATE_24M_INDEX_TABLE,
71 IWL_RATE_36M_INDEX_TABLE,
72 IWL_RATE_48M_INDEX_TABLE,
73 IWL_RATE_54M_INDEX_TABLE,
74 IWL_RATE_1M_INDEX_TABLE,
75 IWL_RATE_2M_INDEX_TABLE,
76 IWL_RATE_5M_INDEX_TABLE,
77 IWL_RATE_11M_INDEX_TABLE,
78 IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX,
79};
80
81enum {
82 IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
83 IWL_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
84 IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
85 IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
86};
87
88/* #define vs. enum to keep from defaulting to 'large integer' */
89#define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX)
90#define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX)
91#define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX)
92#define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX)
93#define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX)
94#define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX)
95#define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX)
96#define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX)
97#define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX)
98#define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX)
99#define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX)
100#define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX)
101
102/* 3945 uCode API values for (legacy) bit rates, both OFDM and CCK */
103enum {
104 IWL_RATE_6M_PLCP = 13,
105 IWL_RATE_9M_PLCP = 15,
106 IWL_RATE_12M_PLCP = 5,
107 IWL_RATE_18M_PLCP = 7,
108 IWL_RATE_24M_PLCP = 9,
109 IWL_RATE_36M_PLCP = 11,
110 IWL_RATE_48M_PLCP = 1,
111 IWL_RATE_54M_PLCP = 3,
112 IWL_RATE_1M_PLCP = 10,
113 IWL_RATE_2M_PLCP = 20,
114 IWL_RATE_5M_PLCP = 55,
115 IWL_RATE_11M_PLCP = 110,
116};
117
118/* MAC header values for bit rates */
119enum {
120 IWL_RATE_6M_IEEE = 12,
121 IWL_RATE_9M_IEEE = 18,
122 IWL_RATE_12M_IEEE = 24,
123 IWL_RATE_18M_IEEE = 36,
124 IWL_RATE_24M_IEEE = 48,
125 IWL_RATE_36M_IEEE = 72,
126 IWL_RATE_48M_IEEE = 96,
127 IWL_RATE_54M_IEEE = 108,
128 IWL_RATE_1M_IEEE = 2,
129 IWL_RATE_2M_IEEE = 4,
130 IWL_RATE_5M_IEEE = 11,
131 IWL_RATE_11M_IEEE = 22,
132};
133
134#define IWL_CCK_BASIC_RATES_MASK \
135 (IWL_RATE_1M_MASK | \
136 IWL_RATE_2M_MASK)
137
138#define IWL_CCK_RATES_MASK \
139 (IWL_BASIC_RATES_MASK | \
140 IWL_RATE_5M_MASK | \
141 IWL_RATE_11M_MASK)
142
143#define IWL_OFDM_BASIC_RATES_MASK \
144 (IWL_RATE_6M_MASK | \
145 IWL_RATE_12M_MASK | \
146 IWL_RATE_24M_MASK)
147
148#define IWL_OFDM_RATES_MASK \
149 (IWL_OFDM_BASIC_RATES_MASK | \
150 IWL_RATE_9M_MASK | \
151 IWL_RATE_18M_MASK | \
152 IWL_RATE_36M_MASK | \
153 IWL_RATE_48M_MASK | \
154 IWL_RATE_54M_MASK)
155
156#define IWL_BASIC_RATES_MASK \
157 (IWL_OFDM_BASIC_RATES_MASK | \
158 IWL_CCK_BASIC_RATES_MASK)
159
160#define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1)
161
162#define IWL_INV_TPT -1
163
164#define IWL_MIN_RSSI_VAL -100
165#define IWL_MAX_RSSI_VAL 0
166
167extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT];
168
169static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
170{
171 u8 rate = iwl3945_rates[rate_index].prev_ieee;
172
173 if (rate == IWL_RATE_INVALID)
174 rate = rate_index;
175 return rate;
176}
177
178/**
179 * iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
180 *
181 * The specific throughput table used is based on the type of network
182 * the associated with, including A, B, G, and G w/ TGG protection
183 */
184extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
185
186/**
187 * iwl3945_rate_control_register - Register the rate control algorithm callbacks
188 *
189 * Since the rate control algorithm is hardware specific, there is no need
190 * or reason to place it as a stand alone module. The driver can call
191 * iwl3945_rate_control_register in order to register the rate control callbacks
192 * with the mac80211 subsystem. This should be performed prior to calling
193 * ieee80211_register_hw
194 *
195 */
196extern int iwl3945_rate_control_register(void);
197
198/**
199 * iwl3945_rate_control_unregister - Unregister the rate control callbacks
200 *
201 * This should be called after calling ieee80211_unregister_hw, but before
202 * the driver is unloaded.
203 */
204extern void iwl3945_rate_control_unregister(void);
205
206#endif
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