1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
|
/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __fw_api_rs_h__
#define __fw_api_rs_h__
#include "fw-api-mac.h"
/*
* These serve as indexes into
* struct iwl_rate_info fw_rate_idx_to_plcp[IWL_RATE_COUNT];
*/
enum {
IWL_RATE_1M_INDEX = 0,
IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
IWL_RATE_2M_INDEX,
IWL_RATE_5M_INDEX,
IWL_RATE_11M_INDEX,
IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
IWL_RATE_6M_INDEX,
IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
IWL_RATE_9M_INDEX,
IWL_RATE_12M_INDEX,
IWL_RATE_18M_INDEX,
IWL_RATE_24M_INDEX,
IWL_RATE_36M_INDEX,
IWL_RATE_48M_INDEX,
IWL_RATE_54M_INDEX,
IWL_LAST_NON_HT_RATE = IWL_RATE_54M_INDEX,
IWL_RATE_60M_INDEX,
IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX,
IWL_RATE_COUNT_LEGACY = IWL_LAST_NON_HT_RATE + 1,
IWL_RATE_COUNT,
};
#define IWL_RATE_BIT_MSK(r) BIT(IWL_RATE_##r##M_INDEX)
/* fw API values for legacy bit rates, both OFDM and CCK */
enum {
IWL_RATE_6M_PLCP = 13,
IWL_RATE_9M_PLCP = 15,
IWL_RATE_12M_PLCP = 5,
IWL_RATE_18M_PLCP = 7,
IWL_RATE_24M_PLCP = 9,
IWL_RATE_36M_PLCP = 11,
IWL_RATE_48M_PLCP = 1,
IWL_RATE_54M_PLCP = 3,
IWL_RATE_1M_PLCP = 10,
IWL_RATE_2M_PLCP = 20,
IWL_RATE_5M_PLCP = 55,
IWL_RATE_11M_PLCP = 110,
};
/*
* rate_n_flags bit fields
*
* The 32-bit value has different layouts in the low 8 bites depending on the
* format. There are three formats, HT, VHT and legacy (11abg, with subformats
* for CCK and OFDM).
*
* High-throughput (HT) rate format
* bit 8 is 1, bit 26 is 0, bit 9 is 0 (OFDM)
* Very High-throughput (VHT) rate format
* bit 8 is 0, bit 26 is 1, bit 9 is 0 (OFDM)
* Legacy OFDM rate format for bits 7:0
* bit 8 is 0, bit 26 is 0, bit 9 is 0 (OFDM)
* Legacy CCK rate format for bits 7:0:
* bit 8 is 0, bit 26 is 0, bit 9 is 1 (CCK)
*/
/* Bit 8: (1) HT format, (0) legacy or VHT format */
#define RATE_MCS_HT_POS 8
#define RATE_MCS_HT_MSK (1 << RATE_MCS_HT_POS)
/* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */
#define RATE_MCS_CCK_POS 9
#define RATE_MCS_CCK_MSK (1 << RATE_MCS_CCK_POS)
/* Bit 26: (1) VHT format, (0) legacy format in bits 8:0 */
#define RATE_MCS_VHT_POS 26
#define RATE_MCS_VHT_MSK (1 << RATE_MCS_VHT_POS)
/*
* High-throughput (HT) rate format for bits 7:0
*
* 2-0: MCS rate base
* 0) 6 Mbps
* 1) 12 Mbps
* 2) 18 Mbps
* 3) 24 Mbps
* 4) 36 Mbps
* 5) 48 Mbps
* 6) 54 Mbps
* 7) 60 Mbps
* 4-3: 0) Single stream (SISO)
* 1) Dual stream (MIMO)
* 2) Triple stream (MIMO)
* 5: Value of 0x20 in bits 7:0 indicates 6 Mbps HT40 duplicate data
* (bits 7-6 are zero)
*
* Together the low 5 bits work out to the MCS index because we don't
* support MCSes above 15/23, and 0-7 have one stream, 8-15 have two
* streams and 16-23 have three streams. We could also support MCS 32
* which is the duplicate 20 MHz MCS (bit 5 set, all others zero.)
*/
#define RATE_HT_MCS_RATE_CODE_MSK 0x7
/* Bit 10: (1) Use Green Field preamble */
#define RATE_HT_MCS_GF_POS 10
#define RATE_HT_MCS_GF_MSK (1 << RATE_HT_MCS_GF_POS)
#define RATE_HT_MCS_INDEX_MSK 0x3f
/*
* Very High-throughput (VHT) rate format for bits 7:0
*
* 3-0: VHT MCS (0-9)
* 5-4: number of streams - 1:
* 0) Single stream (SISO)
* 1) Dual stream (MIMO)
* 2) Triple stream (MIMO)
*/
/* Bit 4-5: (0) SISO, (1) MIMO2 (2) MIMO3 */
#define RATE_VHT_MCS_RATE_CODE_MSK 0xf
#define RATE_VHT_MCS_NSS_POS 4
#define RATE_VHT_MCS_NSS_MSK (3 << RATE_VHT_MCS_NSS_POS)
/*
* Legacy OFDM rate format for bits 7:0
*
* 3-0: 0xD) 6 Mbps
* 0xF) 9 Mbps
* 0x5) 12 Mbps
* 0x7) 18 Mbps
* 0x9) 24 Mbps
* 0xB) 36 Mbps
* 0x1) 48 Mbps
* 0x3) 54 Mbps
* (bits 7-4 are 0)
*
* Legacy CCK rate format for bits 7:0:
* bit 8 is 0, bit 26 is 0, bit 9 is 1 (CCK):
*
* 6-0: 10) 1 Mbps
* 20) 2 Mbps
* 55) 5.5 Mbps
* 110) 11 Mbps
* (bit 7 is 0)
*/
#define RATE_LEGACY_RATE_MSK 0xff
/*
* Bit 11-12: (0) 20MHz, (1) 40MHz, (2) 80MHz, (3) 160MHz
* 0 and 1 are valid for HT and VHT, 2 and 3 only for VHT
*/
#define RATE_MCS_CHAN_WIDTH_POS 11
#define RATE_MCS_CHAN_WIDTH_MSK (3 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_20 (0 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_40 (1 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_80 (2 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_160 (3 << RATE_MCS_CHAN_WIDTH_POS)
/* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */
#define RATE_MCS_SGI_POS 13
#define RATE_MCS_SGI_MSK (1 << RATE_MCS_SGI_POS)
/* Bit 14-16: Antenna selection (1) Ant A, (2) Ant B, (4) Ant C */
#define RATE_MCS_ANT_POS 14
#define RATE_MCS_ANT_A_MSK (1 << RATE_MCS_ANT_POS)
#define RATE_MCS_ANT_B_MSK (2 << RATE_MCS_ANT_POS)
#define RATE_MCS_ANT_C_MSK (4 << RATE_MCS_ANT_POS)
#define RATE_MCS_ANT_AB_MSK (RATE_MCS_ANT_A_MSK | \
RATE_MCS_ANT_B_MSK)
#define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | \
RATE_MCS_ANT_C_MSK)
#define RATE_MCS_ANT_MSK RATE_MCS_ANT_ABC_MSK
#define RATE_MCS_ANT_NUM 3
/* Bit 17-18: (0) SS, (1) SS*2 */
#define RATE_MCS_STBC_POS 17
#define RATE_MCS_STBC_MSK (1 << RATE_MCS_STBC_POS)
/* Bit 19: (0) Beamforming is off, (1) Beamforming is on */
#define RATE_MCS_BF_POS 19
#define RATE_MCS_BF_MSK (1 << RATE_MCS_BF_POS)
/* Bit 20: (0) ZLF is off, (1) ZLF is on */
#define RATE_MCS_ZLF_POS 20
#define RATE_MCS_ZLF_MSK (1 << RATE_MCS_ZLF_POS)
/* Bit 24-25: (0) 20MHz (no dup), (1) 2x20MHz, (2) 4x20MHz, 3 8x20MHz */
#define RATE_MCS_DUP_POS 24
#define RATE_MCS_DUP_MSK (3 << RATE_MCS_DUP_POS)
/* Bit 27: (1) LDPC enabled, (0) LDPC disabled */
#define RATE_MCS_LDPC_POS 27
#define RATE_MCS_LDPC_MSK (1 << RATE_MCS_LDPC_POS)
/* Link Quality definitions */
/* # entries in rate scale table to support Tx retries */
#define LQ_MAX_RETRY_NUM 16
/* Link quality command flags, only this one is available */
#define LQ_FLAG_SET_STA_TLC_RTS_MSK BIT(0)
/**
* struct iwl_lq_cmd - link quality command
* @sta_id: station to update
* @control: not used
* @flags: combination of LQ_FLAG_*
* @mimo_delim: the first SISO index in rs_table, which separates MIMO
* and SISO rates
* @single_stream_ant_msk: best antenna for SISO (can be dual in CDD).
* Should be ANT_[ABC]
* @dual_stream_ant_msk: best antennas for MIMO, combination of ANT_[ABC]
* @initial_rate_index: first index from rs_table per AC category
* @agg_time_limit: aggregation max time threshold in usec/100, meaning
* value of 100 is one usec. Range is 100 to 8000
* @agg_disable_start_th: try-count threshold for starting aggregation.
* If a frame has higher try-count, it should not be selected for
* starting an aggregation sequence.
* @agg_frame_cnt_limit: max frame count in an aggregation.
* 0: no limit
* 1: no aggregation (one frame per aggregation)
* 2 - 0x3f: maximal number of frames (up to 3f == 63)
* @rs_table: array of rates for each TX try, each is rate_n_flags,
* meaning it is a combination of RATE_MCS_* and IWL_RATE_*_PLCP
* @bf_params: beam forming params, currently not used
*/
struct iwl_lq_cmd {
u8 sta_id;
u8 reserved1;
u16 control;
/* LINK_QUAL_GENERAL_PARAMS_API_S_VER_1 */
u8 flags;
u8 mimo_delim;
u8 single_stream_ant_msk;
u8 dual_stream_ant_msk;
u8 initial_rate_index[AC_NUM];
/* LINK_QUAL_AGG_PARAMS_API_S_VER_1 */
__le16 agg_time_limit;
u8 agg_disable_start_th;
u8 agg_frame_cnt_limit;
__le32 reserved2;
__le32 rs_table[LQ_MAX_RETRY_NUM];
__le32 bf_params;
}; /* LINK_QUALITY_CMD_API_S_VER_1 */
#endif /* __fw_api_rs_h__ */
|
