1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * IEEE 802.11 HE definitions
4 *
5 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
6 * <jkmaline@cc.hut.fi>
7 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
8 * Copyright (c) 2005, Devicescape Software, Inc.
9 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
10 * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
11 * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
12 * Copyright (c) 2018 - 2025 Intel Corporation
13 */
14
15 #ifndef LINUX_IEEE80211_HE_H
16 #define LINUX_IEEE80211_HE_H
17
18 #include <linux/types.h>
19 #include <linux/if_ether.h>
20
21 #define IEEE80211_TWT_CONTROL_NDP BIT(0)
22 #define IEEE80211_TWT_CONTROL_RESP_MODE BIT(1)
23 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3)
24 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4)
25 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5)
26
27 #define IEEE80211_TWT_REQTYPE_REQUEST BIT(0)
28 #define IEEE80211_TWT_REQTYPE_SETUP_CMD GENMASK(3, 1)
29 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4)
30 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5)
31 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6)
32 #define IEEE80211_TWT_REQTYPE_FLOWID GENMASK(9, 7)
33 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP GENMASK(14, 10)
34 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15)
35
36 enum ieee80211_twt_setup_cmd {
37 TWT_SETUP_CMD_REQUEST,
38 TWT_SETUP_CMD_SUGGEST,
39 TWT_SETUP_CMD_DEMAND,
40 TWT_SETUP_CMD_GROUPING,
41 TWT_SETUP_CMD_ACCEPT,
42 TWT_SETUP_CMD_ALTERNATE,
43 TWT_SETUP_CMD_DICTATE,
44 TWT_SETUP_CMD_REJECT,
45 };
46
47 struct ieee80211_twt_params {
48 __le16 req_type;
49 __le64 twt;
50 u8 min_twt_dur;
51 __le16 mantissa;
52 u8 channel;
53 } __packed;
54
55 struct ieee80211_twt_setup {
56 u8 dialog_token;
57 u8 element_id;
58 u8 length;
59 u8 control;
60 u8 params[];
61 } __packed;
62
63 /**
64 * struct ieee80211_he_cap_elem - HE capabilities element
65 * @mac_cap_info: HE MAC Capabilities Information
66 * @phy_cap_info: HE PHY Capabilities Information
67 *
68 * This structure represents the fixed fields of the payload of the
69 * "HE capabilities element" as described in IEEE Std 802.11ax-2021
70 * sections 9.4.2.248.2 and 9.4.2.248.3.
71 */
72 struct ieee80211_he_cap_elem {
73 u8 mac_cap_info[6];
74 u8 phy_cap_info[11];
75 } __packed;
76
77 #define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN 5
78
79 /**
80 * enum ieee80211_he_mcs_support - HE MCS support definitions
81 * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
82 * number of streams
83 * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
84 * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
85 * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
86 *
87 * These definitions are used in each 2-bit subfield of the rx_mcs_*
88 * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, which are
89 * both split into 8 subfields by number of streams. These values indicate
90 * which MCSes are supported for the number of streams the value appears
91 * for.
92 */
93 enum ieee80211_he_mcs_support {
94 IEEE80211_HE_MCS_SUPPORT_0_7 = 0,
95 IEEE80211_HE_MCS_SUPPORT_0_9 = 1,
96 IEEE80211_HE_MCS_SUPPORT_0_11 = 2,
97 IEEE80211_HE_MCS_NOT_SUPPORTED = 3,
98 };
99
100 /**
101 * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
102 *
103 * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
104 * described in P802.11ax_D2.0 section 9.4.2.237.4
105 *
106 * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
107 * widths less than 80MHz.
108 * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
109 * widths less than 80MHz.
110 * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
111 * width 160MHz.
112 * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
113 * width 160MHz.
114 * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
115 * channel width 80p80MHz.
116 * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
117 * channel width 80p80MHz.
118 */
119 struct ieee80211_he_mcs_nss_supp {
120 __le16 rx_mcs_80;
121 __le16 tx_mcs_80;
122 __le16 rx_mcs_160;
123 __le16 tx_mcs_160;
124 __le16 rx_mcs_80p80;
125 __le16 tx_mcs_80p80;
126 } __packed;
127
128 /**
129 * struct ieee80211_he_operation - HE Operation element
130 * @he_oper_params: HE Operation Parameters + BSS Color Information
131 * @he_mcs_nss_set: Basic HE-MCS And NSS Set
132 * @optional: Optional fields VHT Operation Information, Max Co-Hosted
133 * BSSID Indicator, and 6 GHz Operation Information
134 *
135 * This structure represents the payload of the "HE Operation
136 * element" as described in IEEE Std 802.11ax-2021 section 9.4.2.249.
137 */
138 struct ieee80211_he_operation {
139 __le32 he_oper_params;
140 __le16 he_mcs_nss_set;
141 u8 optional[];
142 } __packed;
143
144 /**
145 * struct ieee80211_he_spr - Spatial Reuse Parameter Set element
146 * @he_sr_control: SR Control
147 * @optional: Optional fields Non-SRG OBSS PD Max Offset, SRG OBSS PD
148 * Min Offset, SRG OBSS PD Max Offset, SRG BSS Color
149 * Bitmap, and SRG Partial BSSID Bitmap
150 *
151 * This structure represents the payload of the "Spatial Reuse
152 * Parameter Set element" as described in IEEE Std 802.11ax-2021
153 * section 9.4.2.252.
154 */
155 struct ieee80211_he_spr {
156 u8 he_sr_control;
157 u8 optional[];
158 } __packed;
159
160 /**
161 * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
162 * @aifsn: ACI/AIFSN
163 * @ecw_min_max: ECWmin/ECWmax
164 * @mu_edca_timer: MU EDCA Timer
165 *
166 * This structure represents the "MU AC Parameter Record" as described
167 * in IEEE Std 802.11ax-2021 section 9.4.2.251, Figure 9-788p.
168 */
169 struct ieee80211_he_mu_edca_param_ac_rec {
170 u8 aifsn;
171 u8 ecw_min_max;
172 u8 mu_edca_timer;
173 } __packed;
174
175 /**
176 * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
177 * @mu_qos_info: QoS Info
178 * @ac_be: MU AC_BE Parameter Record
179 * @ac_bk: MU AC_BK Parameter Record
180 * @ac_vi: MU AC_VI Parameter Record
181 * @ac_vo: MU AC_VO Parameter Record
182 *
183 * This structure represents the payload of the "MU EDCA Parameter Set
184 * element" as described in IEEE Std 802.11ax-2021 section 9.4.2.251.
185 */
186 struct ieee80211_mu_edca_param_set {
187 u8 mu_qos_info;
188 struct ieee80211_he_mu_edca_param_ac_rec ac_be;
189 struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
190 struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
191 struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
192 } __packed;
193
194 /* 802.11ax HE MAC capabilities */
195 #define IEEE80211_HE_MAC_CAP0_HTC_HE 0x01
196 #define IEEE80211_HE_MAC_CAP0_TWT_REQ 0x02
197 #define IEEE80211_HE_MAC_CAP0_TWT_RES 0x04
198 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP 0x00
199 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1 0x08
200 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2 0x10
201 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3 0x18
202 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK 0x18
203 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1 0x00
204 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2 0x20
205 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4 0x40
206 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8 0x60
207 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16 0x80
208 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32 0xa0
209 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64 0xc0
210 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED 0xe0
211 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK 0xe0
212
213 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED 0x00
214 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128 0x01
215 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256 0x02
216 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512 0x03
217 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK 0x03
218 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US 0x00
219 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US 0x04
220 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US 0x08
221 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK 0x0c
222 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_1 0x00
223 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_2 0x10
224 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_3 0x20
225 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_4 0x30
226 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_5 0x40
227 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_6 0x50
228 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_7 0x60
229 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8 0x70
230 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_MASK 0x70
231
232 /* Link adaptation is split between byte HE_MAC_CAP1 and
233 * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
234 * in which case the following values apply:
235 * 0 = No feedback.
236 * 1 = reserved.
237 * 2 = Unsolicited feedback.
238 * 3 = both
239 */
240 #define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION 0x80
241
242 #define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION 0x01
243 #define IEEE80211_HE_MAC_CAP2_ALL_ACK 0x02
244 #define IEEE80211_HE_MAC_CAP2_TRS 0x04
245 #define IEEE80211_HE_MAC_CAP2_BSR 0x08
246 #define IEEE80211_HE_MAC_CAP2_BCAST_TWT 0x10
247 #define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP 0x20
248 #define IEEE80211_HE_MAC_CAP2_MU_CASCADING 0x40
249 #define IEEE80211_HE_MAC_CAP2_ACK_EN 0x80
250
251 #define IEEE80211_HE_MAC_CAP3_OMI_CONTROL 0x02
252 #define IEEE80211_HE_MAC_CAP3_OFDMA_RA 0x04
253
254 /* The maximum length of an A-MDPU is defined by the combination of the Maximum
255 * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
256 * same field in the HE capabilities.
257 */
258 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0 0x00
259 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1 0x08
260 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2 0x10
261 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3 0x18
262 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK 0x18
263 #define IEEE80211_HE_MAC_CAP3_AMSDU_FRAG 0x20
264 #define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED 0x40
265 #define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS 0x80
266
267 #define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG 0x01
268 #define IEEE80211_HE_MAC_CAP4_QTP 0x02
269 #define IEEE80211_HE_MAC_CAP4_BQR 0x04
270 #define IEEE80211_HE_MAC_CAP4_PSR_RESP 0x08
271 #define IEEE80211_HE_MAC_CAP4_NDP_FB_REP 0x10
272 #define IEEE80211_HE_MAC_CAP4_OPS 0x20
273 #define IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU 0x40
274 /* Multi TID agg TX is split between byte #4 and #5
275 * The value is a combination of B39,B40,B41
276 */
277 #define IEEE80211_HE_MAC_CAP4_MULTI_TID_AGG_TX_QOS_B39 0x80
278
279 #define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B40 0x01
280 #define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B41 0x02
281 #define IEEE80211_HE_MAC_CAP5_SUBCHAN_SELECTIVE_TRANSMISSION 0x04
282 #define IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU 0x08
283 #define IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX 0x10
284 #define IEEE80211_HE_MAC_CAP5_HE_DYNAMIC_SM_PS 0x20
285 #define IEEE80211_HE_MAC_CAP5_PUNCTURED_SOUNDING 0x40
286 #define IEEE80211_HE_MAC_CAP5_HT_VHT_TRIG_FRAME_RX 0x80
287
288 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20
289 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16
290 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13
291
292 /* 802.11ax HE PHY capabilities */
293 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G 0x02
294 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G 0x04
295 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G 0x08
296 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G 0x10
297 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL 0x1e
298
299 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G 0x20
300 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G 0x40
301 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK 0xfe
302
303 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ 0x01
304 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ 0x02
305 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ 0x04
306 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ 0x08
307 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK 0x0f
308 #define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A 0x10
309 #define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD 0x20
310 #define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US 0x40
311 /* Midamble RX/TX Max NSTS is split between byte #2 and byte #3 */
312 #define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS 0x80
313
314 #define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_TX_MAX_NSTS 0x01
315 #define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US 0x02
316 #define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ 0x04
317 #define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ 0x08
318 #define IEEE80211_HE_PHY_CAP2_DOPPLER_TX 0x10
319 #define IEEE80211_HE_PHY_CAP2_DOPPLER_RX 0x20
320
321 /* Note that the meaning of UL MU below is different between an AP and a non-AP
322 * sta, where in the AP case it indicates support for Rx and in the non-AP sta
323 * case it indicates support for Tx.
324 */
325 #define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO 0x40
326 #define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO 0x80
327
328 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM 0x00
329 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK 0x01
330 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK 0x02
331 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM 0x03
332 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK 0x03
333 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1 0x00
334 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2 0x04
335 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM 0x00
336 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK 0x08
337 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK 0x10
338 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM 0x18
339 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK 0x18
340 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1 0x00
341 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2 0x20
342 #define IEEE80211_HE_PHY_CAP3_RX_PARTIAL_BW_SU_IN_20MHZ_MU 0x40
343 #define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER 0x80
344
345 #define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE 0x01
346 #define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER 0x02
347
348 /* Minimal allowed value of Max STS under 80MHz is 3 */
349 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 0x0c
350 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5 0x10
351 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6 0x14
352 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7 0x18
353 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8 0x1c
354 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK 0x1c
355
356 /* Minimal allowed value of Max STS above 80MHz is 3 */
357 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4 0x60
358 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5 0x80
359 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6 0xa0
360 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7 0xc0
361 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8 0xe0
362 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK 0xe0
363
364 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1 0x00
365 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2 0x01
366 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3 0x02
367 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4 0x03
368 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5 0x04
369 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6 0x05
370 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7 0x06
371 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8 0x07
372 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK 0x07
373
374 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1 0x00
375 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2 0x08
376 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3 0x10
377 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4 0x18
378 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5 0x20
379 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6 0x28
380 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7 0x30
381 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8 0x38
382 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK 0x38
383
384 #define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK 0x40
385 #define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK 0x80
386
387 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU 0x01
388 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU 0x02
389 #define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB 0x04
390 #define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB 0x08
391 #define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB 0x10
392 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE 0x20
393 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO 0x40
394 #define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT 0x80
395
396 #define IEEE80211_HE_PHY_CAP7_PSR_BASED_SR 0x01
397 #define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP 0x02
398 #define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI 0x04
399 #define IEEE80211_HE_PHY_CAP7_MAX_NC_1 0x08
400 #define IEEE80211_HE_PHY_CAP7_MAX_NC_2 0x10
401 #define IEEE80211_HE_PHY_CAP7_MAX_NC_3 0x18
402 #define IEEE80211_HE_PHY_CAP7_MAX_NC_4 0x20
403 #define IEEE80211_HE_PHY_CAP7_MAX_NC_5 0x28
404 #define IEEE80211_HE_PHY_CAP7_MAX_NC_6 0x30
405 #define IEEE80211_HE_PHY_CAP7_MAX_NC_7 0x38
406 #define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK 0x38
407 #define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ 0x40
408 #define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ 0x80
409
410 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI 0x01
411 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G 0x02
412 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU 0x04
413 #define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU 0x08
414 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI 0x10
415 #define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_TX_2X_AND_1XLTF 0x20
416 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242 0x00
417 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484 0x40
418 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996 0x80
419 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996 0xc0
420 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK 0xc0
421
422 #define IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM 0x01
423 #define IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK 0x02
424 #define IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU 0x04
425 #define IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU 0x08
426 #define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB 0x10
427 #define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB 0x20
428 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US 0x0
429 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US 0x1
430 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US 0x2
431 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED 0x3
432 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_POS 6
433 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK 0xc0
434
435 #define IEEE80211_HE_PHY_CAP10_HE_MU_M1RU_MAX_LTF 0x01
436
437 /* 802.11ax HE TX/RX MCS NSS Support */
438 #define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS (3)
439 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS (6)
440 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS (11)
441 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK 0x07c0
442 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK 0xf800
443
444 /* TX/RX HE MCS Support field Highest MCS subfield encoding */
445 enum ieee80211_he_highest_mcs_supported_subfield_enc {
446 HIGHEST_MCS_SUPPORTED_MCS7 = 0,
447 HIGHEST_MCS_SUPPORTED_MCS8,
448 HIGHEST_MCS_SUPPORTED_MCS9,
449 HIGHEST_MCS_SUPPORTED_MCS10,
450 HIGHEST_MCS_SUPPORTED_MCS11,
451 };
452
453 /* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
454 static inline u8
ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem * he_cap)455 ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
456 {
457 u8 count = 4;
458
459 if (he_cap->phy_cap_info[0] &
460 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
461 count += 4;
462
463 if (he_cap->phy_cap_info[0] &
464 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
465 count += 4;
466
467 return count;
468 }
469
470 /* 802.11ax HE PPE Thresholds */
471 #define IEEE80211_PPE_THRES_NSS_SUPPORT_2NSS (1)
472 #define IEEE80211_PPE_THRES_NSS_POS (0)
473 #define IEEE80211_PPE_THRES_NSS_MASK (7)
474 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_2x966_AND_966_RU \
475 (BIT(5) | BIT(6))
476 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 0x78
477 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS (3)
478 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE (3)
479 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE (7)
480
481 /*
482 * Calculate 802.11ax HE capabilities IE PPE field size
483 * Input: Header byte of ppe_thres (first byte), and HE capa IE's PHY cap u8*
484 */
485 static inline u8
ieee80211_he_ppe_size(u8 ppe_thres_hdr,const u8 * phy_cap_info)486 ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
487 {
488 u8 n;
489
490 if ((phy_cap_info[6] &
491 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
492 return 0;
493
494 n = hweight8(ppe_thres_hdr &
495 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
496 n *= (1 + ((ppe_thres_hdr & IEEE80211_PPE_THRES_NSS_MASK) >>
497 IEEE80211_PPE_THRES_NSS_POS));
498
499 /*
500 * Each pair is 6 bits, and we need to add the 7 "header" bits to the
501 * total size.
502 */
503 n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
504 n = DIV_ROUND_UP(n, 8);
505
506 return n;
507 }
508
ieee80211_he_capa_size_ok(const u8 * data,u8 len)509 static inline bool ieee80211_he_capa_size_ok(const u8 *data, u8 len)
510 {
511 const struct ieee80211_he_cap_elem *he_cap_ie_elem = (const void *)data;
512 u8 needed = sizeof(*he_cap_ie_elem);
513
514 if (len < needed)
515 return false;
516
517 needed += ieee80211_he_mcs_nss_size(he_cap_ie_elem);
518 if (len < needed)
519 return false;
520
521 if (he_cap_ie_elem->phy_cap_info[6] &
522 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
523 if (len < needed + 1)
524 return false;
525 needed += ieee80211_he_ppe_size(data[needed],
526 he_cap_ie_elem->phy_cap_info);
527 }
528
529 return len >= needed;
530 }
531
532 /* HE Operation defines */
533 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK 0x00000007
534 #define IEEE80211_HE_OPERATION_TWT_REQUIRED 0x00000008
535 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK 0x00003ff0
536 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET 4
537 #define IEEE80211_HE_OPERATION_VHT_OPER_INFO 0x00004000
538 #define IEEE80211_HE_OPERATION_CO_HOSTED_BSS 0x00008000
539 #define IEEE80211_HE_OPERATION_ER_SU_DISABLE 0x00010000
540 #define IEEE80211_HE_OPERATION_6GHZ_OP_INFO 0x00020000
541 #define IEEE80211_HE_OPERATION_BSS_COLOR_MASK 0x3f000000
542 #define IEEE80211_HE_OPERATION_BSS_COLOR_OFFSET 24
543 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR 0x40000000
544 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED 0x80000000
545
546 #define IEEE80211_6GHZ_CTRL_REG_LPI_AP 0
547 #define IEEE80211_6GHZ_CTRL_REG_SP_AP 1
548 #define IEEE80211_6GHZ_CTRL_REG_VLP_AP 2
549 #define IEEE80211_6GHZ_CTRL_REG_INDOOR_LPI_AP 3
550 #define IEEE80211_6GHZ_CTRL_REG_INDOOR_SP_AP_OLD 4
551 #define IEEE80211_6GHZ_CTRL_REG_AP_ROLE_NOT_RELEVANT 7
552 #define IEEE80211_6GHZ_CTRL_REG_INDOOR_SP_AP 8
553
554 /**
555 * struct ieee80211_he_6ghz_oper - HE 6 GHz operation Information field
556 * @primary: primary channel
557 * @control: control flags
558 * @ccfs0: channel center frequency segment 0
559 * @ccfs1: channel center frequency segment 1
560 * @minrate: minimum rate (in 1 Mbps units)
561 */
562 struct ieee80211_he_6ghz_oper {
563 u8 primary;
564 #define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH 0x3
565 #define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ 0
566 #define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ 1
567 #define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ 2
568 #define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ 3
569 #define IEEE80211_HE_6GHZ_OPER_CTRL_DUP_BEACON 0x4
570 #define IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO 0x78
571 u8 control;
572 u8 ccfs0;
573 u8 ccfs1;
574 u8 minrate;
575 } __packed;
576
577 /**
578 * enum ieee80211_reg_conn_bits - represents Regulatory connectivity field bits.
579 *
580 * This enumeration defines bit flags used to represent regulatory connectivity
581 * field bits.
582 *
583 * @IEEE80211_REG_CONN_LPI_VALID: Indicates whether the LPI bit is valid.
584 * @IEEE80211_REG_CONN_LPI_VALUE: Represents the value of the LPI bit.
585 * @IEEE80211_REG_CONN_SP_VALID: Indicates whether the SP bit is valid.
586 * @IEEE80211_REG_CONN_SP_VALUE: Represents the value of the SP bit.
587 */
588 enum ieee80211_reg_conn_bits {
589 IEEE80211_REG_CONN_LPI_VALID = BIT(0),
590 IEEE80211_REG_CONN_LPI_VALUE = BIT(1),
591 IEEE80211_REG_CONN_SP_VALID = BIT(2),
592 IEEE80211_REG_CONN_SP_VALUE = BIT(3),
593 };
594
595 /* transmit power interpretation type of transmit power envelope element */
596 enum ieee80211_tx_power_intrpt_type {
597 IEEE80211_TPE_LOCAL_EIRP,
598 IEEE80211_TPE_LOCAL_EIRP_PSD,
599 IEEE80211_TPE_REG_CLIENT_EIRP,
600 IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
601 };
602
603 /* category type of transmit power envelope element */
604 enum ieee80211_tx_power_category_6ghz {
605 IEEE80211_TPE_CAT_6GHZ_DEFAULT = 0,
606 IEEE80211_TPE_CAT_6GHZ_SUBORDINATE = 1,
607 };
608
609 /*
610 * For IEEE80211_TPE_LOCAL_EIRP / IEEE80211_TPE_REG_CLIENT_EIRP,
611 * setting to 63.5 dBm means no constraint.
612 */
613 #define IEEE80211_TPE_MAX_TX_PWR_NO_CONSTRAINT 127
614
615 /*
616 * For IEEE80211_TPE_LOCAL_EIRP_PSD / IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
617 * setting to 127 indicates no PSD limit for the 20 MHz channel.
618 */
619 #define IEEE80211_TPE_PSD_NO_LIMIT 127
620
621 /**
622 * struct ieee80211_tx_pwr_env - Transmit Power Envelope
623 * @info: Transmit Power Information field
624 * @variable: Maximum Transmit Power field
625 *
626 * This structure represents the payload of the "Transmit Power
627 * Envelope element" as described in IEEE Std 802.11ax-2021 section
628 * 9.4.2.161
629 */
630 struct ieee80211_tx_pwr_env {
631 u8 info;
632 u8 variable[];
633 } __packed;
634
635 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x7
636 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
637 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xC0
638
639 #define IEEE80211_TX_PWR_ENV_EXT_COUNT 0xF
640
ieee80211_valid_tpe_element(const u8 * data,u8 len)641 static inline bool ieee80211_valid_tpe_element(const u8 *data, u8 len)
642 {
643 const struct ieee80211_tx_pwr_env *env = (const void *)data;
644 u8 count, interpret, category;
645 u8 needed = sizeof(*env);
646 u8 N; /* also called N in the spec */
647
648 if (len < needed)
649 return false;
650
651 count = u8_get_bits(env->info, IEEE80211_TX_PWR_ENV_INFO_COUNT);
652 interpret = u8_get_bits(env->info, IEEE80211_TX_PWR_ENV_INFO_INTERPRET);
653 category = u8_get_bits(env->info, IEEE80211_TX_PWR_ENV_INFO_CATEGORY);
654
655 switch (category) {
656 case IEEE80211_TPE_CAT_6GHZ_DEFAULT:
657 case IEEE80211_TPE_CAT_6GHZ_SUBORDINATE:
658 break;
659 default:
660 return false;
661 }
662
663 switch (interpret) {
664 case IEEE80211_TPE_LOCAL_EIRP:
665 case IEEE80211_TPE_REG_CLIENT_EIRP:
666 if (count > 3)
667 return false;
668
669 /* count == 0 encodes 1 value for 20 MHz, etc. */
670 needed += count + 1;
671
672 if (len < needed)
673 return false;
674
675 /* there can be extension fields not accounted for in 'count' */
676
677 return true;
678 case IEEE80211_TPE_LOCAL_EIRP_PSD:
679 case IEEE80211_TPE_REG_CLIENT_EIRP_PSD:
680 if (count > 4)
681 return false;
682
683 N = count ? 1 << (count - 1) : 1;
684 needed += N;
685
686 if (len < needed)
687 return false;
688
689 if (len > needed) {
690 u8 K = u8_get_bits(env->variable[N],
691 IEEE80211_TX_PWR_ENV_EXT_COUNT);
692
693 needed += 1 + K;
694 if (len < needed)
695 return false;
696 }
697
698 return true;
699 }
700
701 return false;
702 }
703
704 /*
705 * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
706 * @he_oper_ie: byte data of the He Operations IE, stating from the byte
707 * after the ext ID byte. It is assumed that he_oper_ie has at least
708 * sizeof(struct ieee80211_he_operation) bytes, the caller must have
709 * validated this.
710 * @return the actual size of the IE data (not including header), or 0 on error
711 */
712 static inline u8
ieee80211_he_oper_size(const u8 * he_oper_ie)713 ieee80211_he_oper_size(const u8 *he_oper_ie)
714 {
715 const struct ieee80211_he_operation *he_oper = (const void *)he_oper_ie;
716 u8 oper_len = sizeof(struct ieee80211_he_operation);
717 u32 he_oper_params;
718
719 /* Make sure the input is not NULL */
720 if (!he_oper_ie)
721 return 0;
722
723 /* Calc required length */
724 he_oper_params = le32_to_cpu(he_oper->he_oper_params);
725 if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
726 oper_len += 3;
727 if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
728 oper_len++;
729 if (he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO)
730 oper_len += sizeof(struct ieee80211_he_6ghz_oper);
731
732 /* Add the first byte (extension ID) to the total length */
733 oper_len++;
734
735 return oper_len;
736 }
737
738 /**
739 * ieee80211_he_6ghz_oper - obtain 6 GHz operation field
740 * @he_oper: HE operation element (must be pre-validated for size)
741 * but may be %NULL
742 *
743 * Return: a pointer to the 6 GHz operation field, or %NULL
744 */
745 static inline const struct ieee80211_he_6ghz_oper *
ieee80211_he_6ghz_oper(const struct ieee80211_he_operation * he_oper)746 ieee80211_he_6ghz_oper(const struct ieee80211_he_operation *he_oper)
747 {
748 const u8 *ret;
749 u32 he_oper_params;
750
751 if (!he_oper)
752 return NULL;
753
754 ret = (const void *)&he_oper->optional;
755
756 he_oper_params = le32_to_cpu(he_oper->he_oper_params);
757
758 if (!(he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO))
759 return NULL;
760 if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
761 ret += 3;
762 if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
763 ret++;
764
765 return (const void *)ret;
766 }
767
768 /* HE Spatial Reuse defines */
769 #define IEEE80211_HE_SPR_PSR_DISALLOWED BIT(0)
770 #define IEEE80211_HE_SPR_NON_SRG_OBSS_PD_SR_DISALLOWED BIT(1)
771 #define IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT BIT(2)
772 #define IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT BIT(3)
773 #define IEEE80211_HE_SPR_HESIGA_SR_VAL15_ALLOWED BIT(4)
774
775 /*
776 * ieee80211_he_spr_size - calculate 802.11ax HE Spatial Reuse IE size
777 * @he_spr_ie: byte data of the He Spatial Reuse IE, stating from the byte
778 * after the ext ID byte. It is assumed that he_spr_ie has at least
779 * sizeof(struct ieee80211_he_spr) bytes, the caller must have validated
780 * this
781 * @return the actual size of the IE data (not including header), or 0 on error
782 */
783 static inline u8
ieee80211_he_spr_size(const u8 * he_spr_ie)784 ieee80211_he_spr_size(const u8 *he_spr_ie)
785 {
786 const struct ieee80211_he_spr *he_spr = (const void *)he_spr_ie;
787 u8 spr_len = sizeof(struct ieee80211_he_spr);
788 u8 he_spr_params;
789
790 /* Make sure the input is not NULL */
791 if (!he_spr_ie)
792 return 0;
793
794 /* Calc required length */
795 he_spr_params = he_spr->he_sr_control;
796 if (he_spr_params & IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT)
797 spr_len++;
798 if (he_spr_params & IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT)
799 spr_len += 18;
800
801 /* Add the first byte (extension ID) to the total length */
802 spr_len++;
803
804 return spr_len;
805 }
806
807 struct ieee80211_he_6ghz_capa {
808 /* uses IEEE80211_HE_6GHZ_CAP_* below */
809 __le16 capa;
810 } __packed;
811
812 /* HE 6 GHz band capabilities */
813 /* uses enum ieee80211_min_mpdu_spacing values */
814 #define IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START 0x0007
815 /* uses enum ieee80211_vht_max_ampdu_length_exp values */
816 #define IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP 0x0038
817 /* uses IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_* values */
818 #define IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN 0x00c0
819 /* WLAN_HT_CAP_SM_PS_* values */
820 #define IEEE80211_HE_6GHZ_CAP_SM_PS 0x0600
821 #define IEEE80211_HE_6GHZ_CAP_RD_RESPONDER 0x0800
822 #define IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS 0x1000
823 #define IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS 0x2000
824
825 #endif /* LINUX_IEEE80211_HE_H */
826