1 /* 2 * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. 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: dfs_process_radar_found_ind.h 22 * This file provides prototypes of the routines needed for the 23 * external components to utilize the services provided by the 24 * DFS component. 25 */ 26 27 #ifndef _DFS_PROCESS_RADAR_FOUND_IND_H_ 28 #define _DFS_PROCESS_RADAR_FOUND_IND_H_ 29 #include "dfs_partial_offload_radar.h" 30 31 #define BW_INVALID 0 32 #define BW_10 10 33 #define BW_20 20 34 #define BW_40 40 35 #define BW_80 80 36 #define BW_160 160 37 #define BW_320 320 38 /** 39 * dfs_false_radarfound_reset_vars () - Reset dfs radar detection related 40 * variables and queues after processing radar and disabling phyerror reception. 41 * 42 * @dfs: Pointer to wlan_dfs structure. 43 */ 44 static inline void 45 dfs_flush_additional_pulses(struct wlan_dfs *dfs) 46 { 47 dfs_false_radarfound_reset_vars(dfs); 48 } 49 50 /* Number of channel marking offsets */ 51 #define DFS_NUM_FREQ_OFFSET 3 52 53 /* Lower channel from 20 Mhz center channel */ 54 #define DFS_20MHZ_LOWER_CHANNEL(_f) ((_f) - 20) 55 /* Upper channel from 20 Mhz center channel */ 56 #define DFS_20MHZ_UPPER_CHANNEL(_f) ((_f) + 20) 57 /* 1st lower channel from center channel of bandwidth 40/80/160Mhz */ 58 #define DFS_FIRST_LOWER_CHANNEL(_f) ((_f) - 10) 59 /* 2nd lower channel from center channel of bandwidth 40/80/160Mhz */ 60 #define DFS_SECOND_LOWER_CHANNEL(_f) ((_f) - 30) 61 /* 3rd lower channel from center channel of bandwidth 80/160Mhz */ 62 #define DFS_THIRD_LOWER_CHANNEL(_f) ((_f) - 50) 63 /* 1st upper channel from center channel of bandwidth 40/80/160Mhz */ 64 #define DFS_FIRST_UPPER_CHANNEL(_f) ((_f) + 10) 65 /* 2nd upper channel from center channel of bandwidth 40/80/160Mhz */ 66 #define DFS_SECOND_UPPER_CHANNEL(_f) ((_f) + 30) 67 /* 3rd upper channel from center channel of bandwidth 80/160Mhz */ 68 #define DFS_THIRD_UPPER_CHANNEL(_f) ((_f) + 50) 69 70 /* 20 Mhz freq_offset lower */ 71 #define DFS_20MZ_OFFSET_LOWER (-10) 72 /* 20 Mhz freq_offset upper */ 73 #define DFS_20MZ_OFFSET_UPPER (10) 74 /* 40/80 Mhz freq_offset first lower */ 75 #define DFS_OFFSET_FIRST_LOWER (-20) 76 /* 40/80 Mhz freq_offset second lower */ 77 #define DFS_OFFSET_SECOND_LOWER (-40) 78 /* 40/80 Mhz freq_offset first upper */ 79 #define DFS_OFFSET_FIRST_UPPER (20) 80 /* 40/80 Mhz freq_offset second upper */ 81 #define DFS_OFFSET_SECOND_UPPER (40) 82 83 /* Frequency offset to sidx */ 84 #define DFS_FREQ_OFFSET_TO_SIDX(_f) ((32 * (_f)) / 10) 85 /* Sidx to frequency offset */ 86 #define DFS_SIDX_TO_FREQ_OFFSET(_s) ((10 * (_s)) / 32) 87 /* sidx offset boundary */ 88 #define DFS_BOUNDARY_SIDX 32 89 /* freq offset for chirp */ 90 #define DFS_CHIRP_OFFSET 10 91 /* second segment freq offset */ 92 #define DFS_160MHZ_SECOND_SEG_OFFSET 40 93 #define DFS_165MHZ_SECOND_SEG_OFFSET_LEFT 40 /* in MHz */ 94 #define DFS_165MHZ_SECOND_SEG_OFFSET_RIGHT 45 /* in MHz */ 95 /*Primary segment id is 0 */ 96 #define PRIMARY_SEG 0 97 /* Secondary segment id is 1 */ 98 #define SECONDARY_SEG 1 99 100 /* Frequency offset indices */ 101 #define CENTER_CH 0 102 #define LEFT_CH 1 103 #define RIGHT_CH 2 104 105 #ifdef CONFIG_CHAN_FREQ_API 106 /* Next channel frequency offsets from center channel frequency */ 107 #define DFS_5GHZ_NEXT_CHAN_FREQ_OFFSET 10 108 #define DFS_5GHZ_2ND_CHAN_FREQ_OFFSET 30 109 #define DFS_5GHZ_3RD_CHAN_FREQ_OFFSET 50 110 #define DFS_5GHZ_4TH_CHAN_FREQ_OFFSET 70 111 #define DFS_5GHZ_5TH_CHAN_FREQ_OFFSET 90 112 #define DFS_5GHZ_6TH_CHAN_FREQ_OFFSET 110 113 #define DFS_5GHZ_7TH_CHAN_FREQ_OFFSET 130 114 #define DFS_5GHZ_8TH_CHAN_FREQ_OFFSET 150 115 #endif 116 /* Number of 20MHz sub-channels in 160 MHz segment */ 117 #define NUM_CHANNELS_160MHZ 8 118 /* Number of 20MHz sub-channels in 320 MHz segment */ 119 #define NUM_CHANNELS_320MHZ 16 120 /* Number of 20MHz sub-channels in 240 MHz (320-80) segment */ 121 #define NUM_CHANNELS_240MHZ 12 122 123 #ifdef WLAN_FEATURE_11BE 124 #define MAX_20MHZ_SUBCHANS NUM_CHANNELS_320MHZ 125 #else 126 #define MAX_20MHZ_SUBCHANS NUM_CHANNELS_160MHZ 127 #endif 128 129 #if defined(QCA_DFS_RCSA_SUPPORT) 130 /** 131 * dfs_send_nol_ie_and_rcsa()- Send NOL IE and RCSA action frames. 132 * @dfs: Pointer to wlan_dfs structure. 133 * @radar_found: Pointer to radar found structure. 134 * @nol_freq_list: List of 20MHz frequencies on which radar has been detected. 135 * @num_channels: number of radar affected channels. 136 * @wait_for_csa: indicates if the repeater AP should take DFS action or wait 137 * for CSA 138 * 139 * Return: void. 140 */ 141 void dfs_send_nol_ie_and_rcsa(struct wlan_dfs *dfs, 142 struct radar_found_info *radar_found, 143 uint16_t *nol_freq_list, 144 uint8_t num_channels, 145 bool *wait_for_csa); 146 #else 147 static inline 148 void dfs_send_nol_ie_and_rcsa(struct wlan_dfs *dfs, 149 struct radar_found_info *radar_found, 150 uint16_t *nol_freq_list, 151 uint8_t num_channels, 152 bool *wait_for_csa) 153 { 154 } 155 #endif /* QCA_DFS_RCSA_SUPPORT */ 156 157 /** 158 * struct freqs_offsets - frequency and offset information 159 * @freq: channel frequency in mhz. 160 * @offset: offset from center frequency. 161 * 162 * Index 0 - Center channel affected by RADAR. 163 * Index 1 - Left of Center channel affected by RADAR. 164 * Index 2 - Right of Center channel affected by RADAR. 165 * 166 * This information is needed to find and mark radar infected 167 * channels in NOL and regulatory database. 168 */ 169 struct freqs_offsets { 170 uint32_t freq[DFS_NUM_FREQ_OFFSET]; 171 int32_t offset[DFS_NUM_FREQ_OFFSET]; 172 }; 173 174 /** 175 * dfs_process_radar_found_indication() - Process radar found indication 176 * @dfs: Pointer to wlan_dfs structure. 177 * @radar_found: radar found info. 178 * 179 * Process radar found indication and update radar effected channel in NOL 180 * and regulatory. 181 * 182 * Return: None 183 */ 184 void dfs_process_radar_found_indication(struct wlan_dfs *dfs, 185 struct radar_found_info *radar_found); 186 187 #if defined(QCA_DFS_BW_PUNCTURE) 188 /** 189 * dfs_generate_radar_bitmap() - Generate radar bitmap for DFS channel 190 * @dfs: Pointer to wlan_dfs structure. 191 * @radar_freq_list: Channel list affected by radar. 192 * @num_radar_channels: Number of channels affected by radar. 193 * 194 * Return: Bitmap of radar punctured channels. 195 */ 196 uint16_t dfs_generate_radar_bitmap(struct wlan_dfs *dfs, 197 uint16_t *radar_freq_list, 198 uint8_t num_radar_channels); 199 #else 200 static inline 201 uint16_t dfs_generate_radar_bitmap(struct wlan_dfs *dfs, 202 uint16_t *radar_freq_list, 203 uint8_t num_radar_channels) 204 { 205 return 0; 206 } 207 #endif /* QCA_DFS_BW_PUNCTURE */ 208 209 /** 210 * dfs_process_radar_ind() - Process radar indication event 211 * @dfs: Pointer to wlan_dfs structure. 212 * @radar_found: Pointer to radar_found_info structure. 213 * 214 * Wrapper function of dfs_process_radar_found_indication(). 215 * 216 * Return: QDF_STATUS 217 */ 218 QDF_STATUS dfs_process_radar_ind(struct wlan_dfs *dfs, 219 struct radar_found_info *radar_found); 220 221 /** 222 * dfs_process_radar_ind_on_home_chan() - Process radar indication event on 223 * home channel. 224 * @dfs: Pointer to wlan_dfs structure. 225 * @radar_found: Pointer to radar_found_info structure. 226 * 227 * Return: QDF_STATUS 228 */ 229 QDF_STATUS 230 dfs_process_radar_ind_on_home_chan(struct wlan_dfs *dfs, 231 struct radar_found_info *radar_found); 232 233 /** 234 * dfs_radarfound_action_generic() - The dfs action on radar detection by host 235 * for domains other than FCC. 236 * @dfs: Pointer to wlan_dfs structure. 237 * @seg_id: segment id. 238 * 239 * Return: None 240 */ 241 void dfs_radarfound_action_generic(struct wlan_dfs *dfs, uint8_t seg_id); 242 243 /** 244 * dfs_get_bonding_channels_for_freq() - Get bonding channels. 245 * @dfs: Pointer to wlan_dfs structure. 246 * @curchan: Pointer to dfs_channels to know width and primary channel. 247 * @segment_id: Segment id, useful for 80+80/160 MHz operating band. 248 * @detector_id: Detector id, used to find if radar is detected on 249 * Agile detector. 250 * @freq_list: Pointer to save radar affected channel's frequency. 251 * 252 * Return: Number of channels. 253 */ 254 #ifdef CONFIG_CHAN_FREQ_API 255 uint8_t dfs_get_bonding_channels_for_freq(struct wlan_dfs *dfs, 256 struct dfs_channel *curchan, 257 uint32_t segment_id, 258 uint8_t detector_id, 259 uint16_t *freq_list); 260 261 /** 262 * dfs_compute_radar_found_cfreq(): Computes the centre frequency of the 263 * radar hit channel. 264 * @dfs: Pointer to wlan_dfs structure. 265 * @radar_found: Pointer to radar_found_info. 266 * @freq_center: Pointer to retrieve the value of radar found cfreq. 267 */ 268 void 269 dfs_compute_radar_found_cfreq(struct wlan_dfs *dfs, 270 struct radar_found_info *radar_found, 271 uint32_t *freq_center); 272 273 /** 274 * dfs_find_radar_affected_channels()- Find the radar affected 20MHz channels. 275 * @dfs: Pointer to wlan_dfs structure. 276 * @radar_found: Pointer to radar found structure. 277 * @freq_list: List of 20MHz frequencies on which radar has been detected. 278 * @freq_center: Frequency center of the band on which the radar was detected. 279 * 280 * Return: number of radar affected channels. 281 */ 282 uint8_t 283 dfs_find_radar_affected_channels(struct wlan_dfs *dfs, 284 struct radar_found_info *radar_found, 285 uint16_t *freq_list, 286 uint32_t freq_center); 287 288 /** 289 * dfs_radar_add_channel_list_to_nol_for_freq()- Add given channels to nol 290 * @dfs: Pointer to wlan_dfs structure. 291 * @freq_list: Pointer to list of frequency(has both nonDFS and DFS channels). 292 * Input frequency list. 293 * @nol_freq_list: Pointer to list of NOL frequencies. Output frequency list. 294 * @num_channels: Pointer to number of channels in the list. It is both input 295 * and output to this function. 296 * *Input: Number of subchannels in @freq_list. 297 * *Output: Number of subchannels in @nol_freq_list. 298 * 299 * Add list of channels to nol, only if the channel is dfs. 300 * 301 * Return: QDF_STATUS 302 */ 303 QDF_STATUS 304 dfs_radar_add_channel_list_to_nol_for_freq(struct wlan_dfs *dfs, 305 uint16_t *freq_list, 306 uint16_t *nol_freq_list, 307 uint8_t *num_channels); 308 #endif 309 310 /** 311 * dfs_reset_bangradar() - Rest bangradar parameters. 312 * @dfs: Pointer to wlan_dfs structure. 313 * 314 * Return: void. 315 */ 316 void dfs_reset_bangradar(struct wlan_dfs *dfs); 317 318 /** 319 * dfs_send_csa_to_current_chan() - Send CSA to current channel 320 * @dfs: Pointer to wlan_dfs structure. 321 * 322 * For the test mode(usenol = 0), don't do a CSA; but setup the test timer so 323 * we get a CSA _back_ to the current operating channel. 324 */ 325 void dfs_send_csa_to_current_chan(struct wlan_dfs *dfs); 326 327 /** 328 * dfs_get_bonding_channel_without_seg_info_for_freq() - Get bonding channels 329 * in chan. 330 * @chan: Pointer to dfs_channel structure. 331 * @freq_list: channel array holding list of bonded channel's frequency. 332 * 333 * Return: number of sub channels in the input channel. 334 */ 335 #ifdef CONFIG_CHAN_FREQ_API 336 uint8_t 337 dfs_get_bonding_channel_without_seg_info_for_freq(struct dfs_channel *chan, 338 uint16_t *freq_list); 339 #endif 340 341 /** 342 * dfs_set_nol_subchannel_marking() - Set or unset NOL subchannel marking. 343 * @dfs: Pointer to wlan_dfs structure. 344 * @nol_subchannel_marking - Configure NOL subchannel marking. 345 * 346 * Return: Status of the configuration. 347 */ 348 int 349 dfs_set_nol_subchannel_marking(struct wlan_dfs *dfs, 350 bool nol_subchannel_marking); 351 352 /** 353 * dfs_get_nol_subchannel_marking() - Get the value of NOL subchannel marking. 354 * @dfs: Pointer to wlan_dfs structure. 355 * @nol_subchannel_marking - Read and store the value of NOL subchannel marking 356 * config. 357 * 358 * Return: Status of the read. 359 */ 360 int 361 dfs_get_nol_subchannel_marking(struct wlan_dfs *dfs, 362 bool *nol_subchannel_marking); 363 364 #ifdef WLAN_DFS_FULL_OFFLOAD 365 /** 366 * dfs_inc_num_radar - Increment radar detect stats for FO. 367 * 368 * @dfs: Pointer to the wlan_dfs object. 369 * 370 * Return: void. 371 */ 372 void dfs_inc_num_radar(struct wlan_dfs *dfs); 373 #else 374 static inline void dfs_inc_num_radar(struct wlan_dfs *dfs) 375 { 376 } 377 #endif 378 379 #if defined(WLAN_DFS_TRUE_160MHZ_SUPPORT) && defined(WLAN_DFS_FULL_OFFLOAD) 380 #define DFS_80P80MHZ_SECOND_SEG_OFFSET 85 381 /** 382 * dfs_translate_radar_params() - Translate the radar parameters received in 383 * true 160MHz supported chipsets. 384 * @dfs: Pointer to the wlan_dfs object. 385 * @radar_found: Radar found parameters. 386 * 387 * Radar found parameters in true 160MHz detectors are represented below: 388 * 389 * Offset received with respect to the center of 160MHz ranging from -80 to +80. 390 * __________________________________________ 391 * | | 392 * | 160 MHz Channel | 393 * |__________________________________________| 394 * | | | | | 395 * | | | | | 396 * -80 -ve offset center +ve offset +80 397 * 398 * 399 * Radar found parameters after translation by this API: 400 * 401 * Offsets with respect to pri/sec 80MHz center ranging from -40 to +40. 402 * __________________________________________ 403 * | | | 404 * | 160 MHz|Channel | 405 * |____________________|_____________________| 406 * | | | | | 407 * | | | | | 408 * -40 pri center +40/-40 sec center +40 409 * 410 * Return: void. 411 */ 412 void 413 dfs_translate_radar_params(struct wlan_dfs *dfs, 414 struct radar_found_info *radar_found); 415 #else 416 static inline void 417 dfs_translate_radar_params(struct wlan_dfs *dfs, 418 struct radar_found_info *radar_found) 419 { 420 } 421 #endif /* WLAN_DFS_TRUE_160MHZ_SUPPORT */ 422 #endif /*_DFS_PROCESS_RADAR_FOUND_IND_H_ */ 423