1 /* 2 * Copyright (c) 2016-2018,2020 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2008 Atheros Communications, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for 6 * any purpose with or without fee is hereby granted, provided that the 7 * above copyright notice and this permission notice appear in all 8 * copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /** 21 * DOC: This file has channel related information. 22 */ 23 24 #ifndef _DFS_CHANNEL_H_ 25 #define _DFS_CHANNEL_H_ 26 27 /* Channel attributes */ 28 29 /* OFDM channel */ 30 #define WLAN_CHAN_OFDM 0x0000000000000040 31 32 /* 2 GHz spectrum channel. */ 33 #define WLAN_CHAN_2GHZ 0x0000000000000080 34 35 /* 5 GHz spectrum channel */ 36 #define WLAN_CHAN_5GHZ 0x0000000000000100 37 38 /* Radar found on channel */ 39 #define WLAN_CHAN_DFS_RADAR 0x0000000000001000 40 41 /* HT 20 channel */ 42 #define WLAN_CHAN_HT20 0x0000000000010000 43 44 /* HT 40 with extension channel above */ 45 #define WLAN_CHAN_HT40PLUS 0x0000000000020000 46 47 /* HT 40 with extension channel below */ 48 #define WLAN_CHAN_HT40MINUS 0x0000000000040000 49 50 /* VHT 20 channel */ 51 #define WLAN_CHAN_VHT20 0x0000000000100000 52 53 /* VHT 40 with extension channel above */ 54 #define WLAN_CHAN_VHT40PLUS 0x0000000000200000 55 56 /* VHT 40 with extension channel below */ 57 #define WLAN_CHAN_VHT40MINUS 0x0000000000400000 58 59 /* VHT 80 channel */ 60 #define WLAN_CHAN_VHT80 0x0000000000800000 61 62 /* VHT 160 channel */ 63 #define WLAN_CHAN_VHT160 0x0000000004000000 64 65 /* VHT 80_80 channel */ 66 #define WLAN_CHAN_VHT80_80 0x0000000008000000 67 68 /* HE 20 channel */ 69 #define WLAN_CHAN_HE20 0x0000000010000000 70 71 /* HE 40 with extension channel above */ 72 #define WLAN_CHAN_HE40PLUS 0x0000000020000000 73 74 /* HE 40 with extension channel below */ 75 #define WLAN_CHAN_HE40MINUS 0x0000000040000000 76 77 /* HE 80 channel */ 78 #define WLAN_CHAN_HE80 0x0000000200000000 79 80 /* HE 160 channel */ 81 #define WLAN_CHAN_HE160 0x0000000400000000 82 83 /* HE 80_80 channel */ 84 #define WLAN_CHAN_HE80_80 0x0000000800000000 85 86 /* flagext */ 87 #define WLAN_CHAN_DFS_RADAR_FOUND 0x01 88 89 /* DFS required on channel */ 90 #define WLAN_CHAN_DFS 0x0002 91 92 /* DFS required on channel for 2nd band of 80+80*/ 93 #define WLAN_CHAN_DFS_CFREQ2 0x0004 94 95 /* if channel has been checked for DFS */ 96 #define WLAN_CHAN_DFS_CLEAR 0x0008 97 98 /* DFS radar history for slave device(STA mode) */ 99 #define WLAN_CHAN_HISTORY_RADAR 0x0100 100 101 /* DFS CAC valid for slave device(STA mode) */ 102 #define WLAN_CHAN_CAC_VALID 0x0200 103 104 #define WLAN_IS_CHAN_2GHZ(_c) \ 105 (((_c)->dfs_ch_flags & WLAN_CHAN_2GHZ) != 0) 106 107 #define WLAN_IS_CHAN_5GHZ(_c) \ 108 (((_c)->dfs_ch_flags & WLAN_CHAN_5GHZ) != 0) 109 110 #define WLAN_IS_CHAN_11N_HT40(_c) \ 111 (((_c)->dfs_ch_flags & (WLAN_CHAN_HT40PLUS | \ 112 WLAN_CHAN_HT40MINUS)) != 0) 113 114 #define WLAN_IS_CHAN_11N_HT40PLUS(_c) \ 115 (((_c)->dfs_ch_flags & WLAN_CHAN_HT40PLUS) != 0) 116 117 #define WLAN_IS_CHAN_11N_HT40MINUS(_c) \ 118 (((_c)->dfs_ch_flags & WLAN_CHAN_HT40MINUS) != 0) 119 120 #define WLAN_CHAN_A \ 121 (WLAN_CHAN_5GHZ | WLAN_CHAN_OFDM) 122 123 #define WLAN_IS_CHAN_A(_c) \ 124 (((_c)->dfs_ch_flags & WLAN_CHAN_A) == WLAN_CHAN_A) 125 126 #define WLAN_CHAN_11NA_HT20 \ 127 (WLAN_CHAN_5GHZ | WLAN_CHAN_HT20) 128 129 #define WLAN_CHAN_11NA_HT40PLUS \ 130 (WLAN_CHAN_5GHZ | WLAN_CHAN_HT40PLUS) 131 132 #define WLAN_CHAN_11NA_HT40MINUS \ 133 (WLAN_CHAN_5GHZ | WLAN_CHAN_HT40MINUS) 134 135 #define WLAN_IS_CHAN_11NA_HT20(_c) \ 136 (((_c)->dfs_ch_flags & WLAN_CHAN_11NA_HT20) == \ 137 WLAN_CHAN_11NA_HT20) 138 139 #define WLAN_IS_CHAN_11NA_HT40PLUS(_c) \ 140 (((_c)->dfs_ch_flags & WLAN_CHAN_11NA_HT40PLUS) == \ 141 WLAN_CHAN_11NA_HT40PLUS) 142 143 #define WLAN_IS_CHAN_11NA_HT40MINUS(_c) \ 144 (((_c)->dfs_ch_flags & WLAN_CHAN_11NA_HT40MINUS) == \ 145 WLAN_CHAN_11NA_HT40MINUS) 146 147 #define WLAN_CHAN_11AC_VHT20 \ 148 (WLAN_CHAN_5GHZ | WLAN_CHAN_VHT20) 149 150 #define WLAN_CHAN_11AC_VHT40PLUS \ 151 (WLAN_CHAN_5GHZ | WLAN_CHAN_VHT40PLUS) 152 153 #define WLAN_CHAN_11AC_VHT40MINUS \ 154 (WLAN_CHAN_5GHZ | WLAN_CHAN_VHT40MINUS) 155 156 #define WLAN_CHAN_11AC_VHT80 \ 157 (WLAN_CHAN_5GHZ | WLAN_CHAN_VHT80) 158 159 #define WLAN_CHAN_11AC_VHT160 \ 160 (WLAN_CHAN_5GHZ | WLAN_CHAN_VHT160) 161 162 #define WLAN_CHAN_11AC_VHT80_80 \ 163 (WLAN_CHAN_5GHZ | WLAN_CHAN_VHT80_80) 164 165 #define WLAN_IS_CHAN_11AC_VHT20(_c) \ 166 (((_c)->dfs_ch_flags & WLAN_CHAN_11AC_VHT20) == \ 167 WLAN_CHAN_11AC_VHT20) 168 169 #define WLAN_IS_CHAN_11AC_VHT40(_c) \ 170 (((_c)->dfs_ch_flags & (WLAN_CHAN_VHT40PLUS | \ 171 WLAN_CHAN_VHT40MINUS)) != 0) 172 173 #define WLAN_IS_CHAN_11AC_VHT40PLUS(_c) \ 174 (((_c)->dfs_ch_flags & WLAN_CHAN_11AC_VHT40PLUS) == \ 175 WLAN_CHAN_11AC_VHT40PLUS) 176 177 #define WLAN_IS_CHAN_11AC_VHT40MINUS(_c) \ 178 (((_c)->dfs_ch_flags & WLAN_CHAN_11AC_VHT40MINUS) == \ 179 WLAN_CHAN_11AC_VHT40MINUS) 180 181 #define WLAN_IS_CHAN_11AC_VHT80(_c) \ 182 (((_c)->dfs_ch_flags & WLAN_CHAN_11AC_VHT80) == \ 183 WLAN_CHAN_11AC_VHT80) 184 185 #define WLAN_IS_CHAN_11AC_VHT160(_c) \ 186 (((_c)->dfs_ch_flags & WLAN_CHAN_11AC_VHT160) == \ 187 WLAN_CHAN_11AC_VHT160) 188 189 #define WLAN_IS_CHAN_11AC_VHT80_80(_c) \ 190 (((_c)->dfs_ch_flags & WLAN_CHAN_11AC_VHT80_80) == \ 191 WLAN_CHAN_11AC_VHT80_80) 192 193 #define WLAN_CHAN_11AXA_HE20 \ 194 (WLAN_CHAN_5GHZ | WLAN_CHAN_HE20) 195 196 #define WLAN_CHAN_11AXA_HE40PLUS \ 197 (WLAN_CHAN_5GHZ | WLAN_CHAN_HE40PLUS) 198 199 #define WLAN_CHAN_11AXA_HE40MINUS \ 200 (WLAN_CHAN_5GHZ | WLAN_CHAN_HE40MINUS) 201 202 #define WLAN_CHAN_11AXA_HE80 \ 203 (WLAN_CHAN_5GHZ | WLAN_CHAN_HE80) 204 205 #define WLAN_CHAN_11AXA_HE160 \ 206 (WLAN_CHAN_5GHZ | WLAN_CHAN_HE160) 207 208 #define WLAN_CHAN_11AXA_HE80_80 \ 209 (WLAN_CHAN_5GHZ | WLAN_CHAN_HE80_80) 210 211 #define WLAN_IS_CHAN_11AXA_HE20(_c) \ 212 (((_c)->dfs_ch_flags & WLAN_CHAN_11AXA_HE20) == \ 213 WLAN_CHAN_11AXA_HE20) 214 215 #define WLAN_IS_CHAN_11AXA_HE40PLUS(_c) \ 216 (((_c)->dfs_ch_flags & WLAN_CHAN_11AXA_HE40PLUS) == \ 217 WLAN_CHAN_11AXA_HE40PLUS) 218 219 #define WLAN_IS_CHAN_11AXA_HE40MINUS(_c) \ 220 (((_c)->dfs_ch_flags & WLAN_CHAN_11AXA_HE40MINUS) == \ 221 WLAN_CHAN_11AXA_HE40MINUS) 222 223 #define WLAN_IS_CHAN_11AXA_HE80(_c) \ 224 (((_c)->dfs_ch_flags & WLAN_CHAN_11AXA_HE80) == \ 225 WLAN_CHAN_11AXA_HE80) 226 227 #define WLAN_IS_CHAN_11AXA_HE160(_c) \ 228 (((_c)->dfs_ch_flags & WLAN_CHAN_11AXA_HE160) == \ 229 WLAN_CHAN_11AXA_HE160) 230 231 #define WLAN_IS_CHAN_11AXA_HE80_80(_c) \ 232 (((_c)->dfs_ch_flags & WLAN_CHAN_11AXA_HE80_80) == \ 233 WLAN_CHAN_11AXA_HE80_80) 234 235 #define WLAN_IS_CHAN_DFS(_c) \ 236 (((_c)->dfs_ch_flagext & \ 237 (WLAN_CHAN_DFS | WLAN_CHAN_DFS_CLEAR)) == WLAN_CHAN_DFS) 238 239 #define WLAN_IS_CHAN_DFS_CFREQ2(_c) \ 240 (((_c)->dfs_ch_flagext & \ 241 (WLAN_CHAN_DFS_CFREQ2|WLAN_CHAN_DFS_CLEAR)) == \ 242 WLAN_CHAN_DFS_CFREQ2) 243 244 #define WLAN_IS_PRIMARY_OR_SECONDARY_CHAN_DFS(_c) \ 245 (WLAN_IS_CHAN_DFS(_c) || \ 246 ((WLAN_IS_CHAN_11AC_VHT160(_c) || \ 247 WLAN_IS_CHAN_11AC_VHT80_80(_c) || \ 248 WLAN_IS_CHAN_11AXA_HE160(_c) || \ 249 WLAN_IS_CHAN_11AXA_HE80_80(_c)) \ 250 && WLAN_IS_CHAN_DFS_CFREQ2(_c))) 251 252 #define WLAN_IS_CHAN_RADAR(_c) \ 253 (((_c)->dfs_ch_flags & WLAN_CHAN_DFS_RADAR) == \ 254 WLAN_CHAN_DFS_RADAR) 255 256 #define WLAN_IS_CHAN_HISTORY_RADAR(_c) \ 257 (((_c)->dfs_ch_flagext & WLAN_CHAN_HISTORY_RADAR) == \ 258 WLAN_CHAN_HISTORY_RADAR) 259 260 #define WLAN_CHAN_CLR_HISTORY_RADAR(_c) \ 261 ((_c)->dfs_ch_flagext &= ~WLAN_CHAN_HISTORY_RADAR) 262 263 #define WLAN_CHAN_ANY (-1) /* token for ``any channel'' */ 264 265 #define WLAN_CHAN_ANYC \ 266 ((struct dfs_channel *) WLAN_CHAN_ANY) 267 268 #define WLAN_IS_CHAN_MODE_20(_c) \ 269 (WLAN_IS_CHAN_A(_c) || \ 270 WLAN_IS_CHAN_11NA_HT20(_c) || \ 271 WLAN_IS_CHAN_11AC_VHT20(_c) || \ 272 WLAN_IS_CHAN_11AXA_HE20(_c)) 273 274 #define WLAN_IS_CHAN_MODE_40(_c) \ 275 (WLAN_IS_CHAN_11AC_VHT40PLUS(_c) || \ 276 WLAN_IS_CHAN_11AC_VHT40MINUS(_c) || \ 277 WLAN_IS_CHAN_11NA_HT40PLUS(_c) || \ 278 WLAN_IS_CHAN_11NA_HT40MINUS(_c) || \ 279 WLAN_IS_CHAN_11AXA_HE40PLUS(_c) || \ 280 WLAN_IS_CHAN_11AXA_HE40MINUS(_c)) 281 282 #define WLAN_IS_CHAN_MODE_80(_c) \ 283 (WLAN_IS_CHAN_11AC_VHT80(_c) || \ 284 WLAN_IS_CHAN_11AXA_HE80(_c)) 285 286 #define WLAN_IS_CHAN_MODE_160(_c) \ 287 (WLAN_IS_CHAN_11AC_VHT160(_c) || \ 288 WLAN_IS_CHAN_11AXA_HE160(_c)) 289 290 #define WLAN_IS_CHAN_MODE_80_80(_c) \ 291 (WLAN_IS_CHAN_11AC_VHT80_80(_c) || \ 292 WLAN_IS_CHAN_11AXA_HE80_80(_c)) 293 294 #define WLAN_IS_CHAN_MODE_165(_dfs, _c) \ 295 (dfs_is_restricted_80p80mhz_supported(_dfs) && \ 296 WLAN_IS_CHAN_MODE_80_80(_c)) 297 298 #endif /* _DFS_CHANNEL_H_ */ 299