Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 1 | /* |
Shashikala Prabhu | 7517a8d | 2018-12-13 18:02:45 +0530 | [diff] [blame] | 2 | * Copyright (c) 2016-2019 The Linux Foundation. All rights reserved. |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 3 | * Copyright (c) 2002-2010, Atheros Communications Inc. |
| 4 | * |
| 5 | * Permission to use, copy, modify, and/or distribute this software for any |
| 6 | * purpose with or without fee is hereby granted, provided that the above |
| 7 | * copyright notice and this permission notice appear in all copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 16 | */ |
| 17 | |
| 18 | /** |
| 19 | * DOC: This file contains NOL related functionality, NOL being the non |
| 20 | * occupancy list. After radar has been detected in a particular channel, |
| 21 | * the channel cannot be used for a period of 30 minutes which is called |
| 22 | * the non occupancy. The NOL is basically a list of all the channels that |
| 23 | * radar has been detected on. Each channel has a 30 minute timer associated |
| 24 | * with it. This file contains the functionality to add a channel to the NOL, |
| 25 | * the NOL timer function and the functionality to remove a channel from the |
| 26 | * NOL when its time is up. |
| 27 | */ |
| 28 | |
| 29 | #include "../dfs.h" |
| 30 | #include "../dfs_channel.h" |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 31 | #include "../dfs_ioctl_private.h" |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 32 | #include "../dfs_internal.h" |
Arif Hussain | 8d88af5 | 2017-02-26 21:25:42 -0800 | [diff] [blame] | 33 | #include <qdf_time.h> |
| 34 | #include <wlan_dfs_mlme_api.h> |
Shashikala Prabhu | 7517a8d | 2018-12-13 18:02:45 +0530 | [diff] [blame] | 35 | #include <wlan_objmgr_vdev_obj.h> |
Arif Hussain | 8d88af5 | 2017-02-26 21:25:42 -0800 | [diff] [blame] | 36 | #include <wlan_dfs_utils_api.h> |
| 37 | #include <wlan_reg_services_api.h> |
Vignesh U | 8785b9d | 2018-04-20 22:01:25 +0530 | [diff] [blame] | 38 | #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) |
| 39 | #include "../dfs_process_radar_found_ind.h" |
| 40 | #include "../dfs_partial_offload_radar.h" |
| 41 | #endif |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 42 | |
Vignesh U | 916926f | 2018-06-04 14:28:11 +0530 | [diff] [blame] | 43 | void dfs_set_update_nol_flag(struct wlan_dfs *dfs, bool val) |
| 44 | { |
| 45 | dfs->update_nol = val; |
| 46 | } |
| 47 | |
| 48 | bool dfs_get_update_nol_flag(struct wlan_dfs *dfs) |
| 49 | { |
| 50 | return dfs->update_nol; |
| 51 | } |
| 52 | |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 53 | /** |
| 54 | * dfs_nol_timeout() - NOL timeout function. |
| 55 | * |
Shashikala Prabhu | a072dc5 | 2017-11-29 12:03:20 +0530 | [diff] [blame] | 56 | * Clears the WLAN_CHAN_DFS_RADAR_FOUND flag for the NOL timeout channel. |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 57 | */ |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 58 | /* Unused function */ |
| 59 | #ifdef CONFIG_CHAN_FREQ_API |
| 60 | static os_timer_func(dfs_nol_timeout) |
| 61 | { |
| 62 | struct dfs_channel *c = NULL, lc; |
| 63 | unsigned long oldest, now; |
| 64 | struct wlan_dfs *dfs = NULL; |
| 65 | int i; |
| 66 | int nchans = 0; |
| 67 | |
| 68 | c = &lc; |
| 69 | |
| 70 | OS_GET_TIMER_ARG(dfs, struct wlan_dfs *); |
| 71 | dfs_mlme_get_dfs_ch_nchans(dfs->dfs_pdev_obj, &nchans); |
| 72 | |
| 73 | now = oldest = qdf_system_ticks(); |
| 74 | for (i = 0; i < nchans; i++) { |
| 75 | dfs_mlme_get_dfs_channels_for_freq |
| 76 | (dfs->dfs_pdev_obj, |
| 77 | &c->dfs_ch_freq, |
| 78 | &c->dfs_ch_flags, |
| 79 | &c->dfs_ch_flagext, |
| 80 | &c->dfs_ch_ieee, |
| 81 | &c->dfs_ch_vhtop_ch_freq_seg1, |
| 82 | &c->dfs_ch_vhtop_ch_freq_seg2, |
| 83 | &c->dfs_ch_mhz_freq_seg1, |
| 84 | &c->dfs_ch_mhz_freq_seg2, |
| 85 | i); |
| 86 | if (WLAN_IS_CHAN_RADAR(c)) { |
| 87 | if (qdf_system_time_after_eq(now, |
| 88 | dfs->dfs_nol_event[i] + |
| 89 | dfs_get_nol_timeout(dfs))) { |
| 90 | c->dfs_ch_flagext &= ~WLAN_CHAN_DFS_RADAR_FOUND; |
| 91 | if (c->dfs_ch_flags & WLAN_CHAN_DFS_RADAR) { |
| 92 | /* |
| 93 | * NB: do this here so we get only one |
| 94 | * msg instead of one for every channel |
| 95 | * table entry. |
| 96 | */ |
| 97 | dfs_debug(dfs, WLAN_DEBUG_DFS, |
| 98 | "radar on channel %u (%u MHz) cleared after timeout", |
| 99 | c->dfs_ch_ieee, |
| 100 | c->dfs_ch_freq); |
| 101 | } |
| 102 | } else if (dfs->dfs_nol_event[i] < oldest) { |
| 103 | oldest = dfs->dfs_nol_event[i]; |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | if (oldest != now) { |
| 108 | /* Arrange to process next channel up for a status change. */ |
| 109 | qdf_timer_mod(&dfs->dfs_nol_timer, |
| 110 | dfs_get_nol_timeout(dfs) - |
| 111 | qdf_system_ticks_to_msecs(qdf_system_ticks())); |
| 112 | } |
| 113 | } |
| 114 | #else |
| 115 | #ifdef CONFIG_CHAN_NUM_API |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 116 | static os_timer_func(dfs_nol_timeout) |
| 117 | { |
Shashikala Prabhu | a072dc5 | 2017-11-29 12:03:20 +0530 | [diff] [blame] | 118 | struct dfs_channel *c = NULL, lc; |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 119 | unsigned long oldest, now; |
| 120 | struct wlan_dfs *dfs = NULL; |
| 121 | int i; |
| 122 | int nchans = 0; |
| 123 | |
| 124 | c = &lc; |
| 125 | |
| 126 | OS_GET_TIMER_ARG(dfs, struct wlan_dfs *); |
| 127 | dfs_mlme_get_dfs_ch_nchans(dfs->dfs_pdev_obj, &nchans); |
| 128 | |
| 129 | now = oldest = qdf_system_ticks(); |
| 130 | for (i = 0; i < nchans; i++) { |
| 131 | dfs_mlme_get_dfs_ch_channels(dfs->dfs_pdev_obj, |
| 132 | &(c->dfs_ch_freq), |
| 133 | &(c->dfs_ch_flags), |
| 134 | &(c->dfs_ch_flagext), |
| 135 | &(c->dfs_ch_ieee), |
| 136 | &(c->dfs_ch_vhtop_ch_freq_seg1), |
| 137 | &(c->dfs_ch_vhtop_ch_freq_seg2), |
| 138 | i); |
Shashikala Prabhu | a072dc5 | 2017-11-29 12:03:20 +0530 | [diff] [blame] | 139 | if (WLAN_IS_CHAN_RADAR(c)) { |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 140 | if (qdf_system_time_after_eq(now, |
| 141 | dfs->dfs_nol_event[i] + |
| 142 | dfs_get_nol_timeout(dfs))) { |
| 143 | c->dfs_ch_flagext &= |
Shashikala Prabhu | a072dc5 | 2017-11-29 12:03:20 +0530 | [diff] [blame] | 144 | ~WLAN_CHAN_DFS_RADAR_FOUND; |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 145 | if (c->dfs_ch_flags & |
Shashikala Prabhu | a072dc5 | 2017-11-29 12:03:20 +0530 | [diff] [blame] | 146 | WLAN_CHAN_DFS_RADAR) { |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 147 | /* |
| 148 | * NB: do this here so we get only one |
| 149 | * msg instead of one for every channel |
| 150 | * table entry. |
| 151 | */ |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 152 | dfs_debug(dfs, WLAN_DEBUG_DFS, |
| 153 | "radar on channel %u (%u MHz) cleared after timeout", |
| 154 | |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 155 | c->dfs_ch_ieee, |
| 156 | c->dfs_ch_freq); |
| 157 | } |
| 158 | } else if (dfs->dfs_nol_event[i] < oldest) |
| 159 | oldest = dfs->dfs_nol_event[i]; |
| 160 | } |
| 161 | } |
| 162 | if (oldest != now) { |
| 163 | /* Arrange to process next channel up for a status change. */ |
| 164 | qdf_timer_mod(&dfs->dfs_nol_timer, |
| 165 | dfs_get_nol_timeout(dfs) - |
| 166 | qdf_system_ticks_to_msecs(qdf_system_ticks())); |
| 167 | } |
| 168 | } |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 169 | #endif |
| 170 | #endif |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 171 | |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 172 | /** |
| 173 | * dfs_nol_elem_free_work_cb - Free NOL element |
| 174 | * |
| 175 | * Free the NOL element memory |
| 176 | */ |
| 177 | static void dfs_nol_elem_free_work_cb(void *context) |
| 178 | { |
| 179 | struct wlan_dfs *dfs = (struct wlan_dfs *)context; |
Shashikala Prabhu | e3807d4 | 2018-09-26 12:23:25 +0530 | [diff] [blame] | 180 | struct dfs_nolelem *nol_head; |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 181 | |
Shashikala Prabhu | e3807d4 | 2018-09-26 12:23:25 +0530 | [diff] [blame] | 182 | while (true) { |
| 183 | WLAN_DFSNOL_LOCK(dfs); |
| 184 | |
| 185 | nol_head = TAILQ_FIRST(&dfs->dfs_nol_free_list); |
| 186 | if (nol_head) { |
| 187 | TAILQ_REMOVE(&dfs->dfs_nol_free_list, nol_head, |
| 188 | nolelem_list); |
Priyadarshnee S | 79a84bd | 2018-09-05 16:21:52 +0530 | [diff] [blame] | 189 | WLAN_DFSNOL_UNLOCK(dfs); |
Shashikala Prabhu | e3807d4 | 2018-09-26 12:23:25 +0530 | [diff] [blame] | 190 | |
| 191 | qdf_timer_free(&nol_head->nol_timer); |
| 192 | qdf_mem_free(nol_head); |
| 193 | } else { |
| 194 | WLAN_DFSNOL_UNLOCK(dfs); |
| 195 | break; |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 196 | } |
Shashikala Prabhu | e3807d4 | 2018-09-26 12:23:25 +0530 | [diff] [blame] | 197 | } |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 198 | } |
| 199 | |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 200 | void dfs_nol_timer_init(struct wlan_dfs *dfs) |
| 201 | { |
| 202 | qdf_timer_init(NULL, |
| 203 | &(dfs->dfs_nol_timer), |
| 204 | dfs_nol_timeout, |
| 205 | (void *)(dfs), |
| 206 | QDF_TIMER_TYPE_WAKE_APPS); |
| 207 | } |
| 208 | |
| 209 | void dfs_nol_attach(struct wlan_dfs *dfs) |
| 210 | { |
Arif Hussain | 877f323 | 2017-08-09 16:05:03 -0700 | [diff] [blame] | 211 | dfs->wlan_dfs_nol_timeout = DFS_NOL_TIMEOUT_S; |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 212 | dfs_nol_timer_init(dfs); |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 213 | qdf_create_work(NULL, &dfs->dfs_nol_elem_free_work, |
| 214 | dfs_nol_elem_free_work_cb, dfs); |
| 215 | TAILQ_INIT(&dfs->dfs_nol_free_list); |
Shaakir Mohamed | 6f35bb0 | 2017-09-15 15:52:21 -0700 | [diff] [blame] | 216 | dfs->dfs_use_nol = 1; |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 217 | WLAN_DFSNOL_LOCK_CREATE(dfs); |
| 218 | } |
| 219 | |
| 220 | void dfs_nol_detach(struct wlan_dfs *dfs) |
| 221 | { |
bings | aa1810a | 2018-01-18 14:14:41 +0800 | [diff] [blame] | 222 | dfs_nol_timer_cleanup(dfs); |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 223 | qdf_flush_work(&dfs->dfs_nol_elem_free_work); |
| 224 | qdf_destroy_work(NULL, &dfs->dfs_nol_elem_free_work); |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 225 | WLAN_DFSNOL_LOCK_DESTROY(dfs); |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 226 | } |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 227 | |
Shashikala Prabhu | 294c9b6 | 2018-08-14 12:28:27 +0530 | [diff] [blame] | 228 | void dfs_nol_timer_detach(struct wlan_dfs *dfs) |
Abhijit Pradhan | 01abdac | 2018-07-24 18:03:50 +0530 | [diff] [blame] | 229 | { |
| 230 | qdf_timer_free(&dfs->dfs_nol_timer); |
| 231 | } |
| 232 | |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 233 | /** |
| 234 | * dfs_nol_delete() - Delete the given frequency/chwidth from the NOL. |
| 235 | * @dfs: Pointer to wlan_dfs structure. |
| 236 | * @delfreq: Freq to delete. |
| 237 | * @delchwidth: Channel width to delete. |
| 238 | */ |
| 239 | static void dfs_nol_delete(struct wlan_dfs *dfs, |
| 240 | uint16_t delfreq, |
| 241 | uint16_t delchwidth) |
| 242 | { |
| 243 | struct dfs_nolelem *nol, **prev_next; |
| 244 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 245 | if (!dfs) { |
| 246 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 247 | return; |
| 248 | } |
| 249 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 250 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, |
| 251 | "remove channel=%d/%d MHz from NOL", |
| 252 | delfreq, delchwidth); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 253 | prev_next = &(dfs->dfs_nol); |
| 254 | nol = dfs->dfs_nol; |
Jeff Johnson | cba07b4 | 2019-03-20 12:14:17 -0700 | [diff] [blame] | 255 | while (nol) { |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 256 | if (nol->nol_freq == delfreq && |
| 257 | nol->nol_chwidth == delchwidth) { |
| 258 | *prev_next = nol->nol_next; |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 259 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, |
| 260 | "removing channel %d/%dMHz from NOL tstamp=%d", |
| 261 | nol->nol_freq, |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 262 | nol->nol_chwidth, |
| 263 | (qdf_system_ticks_to_msecs |
| 264 | (qdf_system_ticks()) / 1000)); |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 265 | TAILQ_INSERT_TAIL(&dfs->dfs_nol_free_list, |
| 266 | nol, nolelem_list); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 267 | nol = *prev_next; |
| 268 | |
| 269 | /* Update the NOL counter. */ |
| 270 | dfs->dfs_nol_count--; |
| 271 | |
| 272 | /* Be paranoid! */ |
| 273 | if (dfs->dfs_nol_count < 0) { |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 274 | dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0; eek!"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 275 | dfs->dfs_nol_count = 0; |
| 276 | } |
| 277 | |
| 278 | } else { |
| 279 | prev_next = &(nol->nol_next); |
| 280 | nol = nol->nol_next; |
| 281 | } |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * dfs_remove_from_nol() - Remove the freq from NOL list. |
| 287 | * |
| 288 | * When NOL times out, this function removes the channel from NOL list. |
| 289 | */ |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 290 | #ifdef CONFIG_CHAN_FREQ_API |
| 291 | static os_timer_func(dfs_remove_from_nol) |
| 292 | { |
| 293 | struct dfs_nolelem *nol_arg; |
| 294 | struct wlan_dfs *dfs; |
| 295 | uint16_t delfreq; |
| 296 | uint16_t delchwidth; |
| 297 | uint8_t chan; |
| 298 | |
| 299 | OS_GET_TIMER_ARG(nol_arg, struct dfs_nolelem *); |
| 300 | |
| 301 | dfs = nol_arg->nol_dfs; |
| 302 | delfreq = nol_arg->nol_freq; |
| 303 | delchwidth = nol_arg->nol_chwidth; |
| 304 | |
| 305 | /* Delete the given NOL entry. */ |
| 306 | DFS_NOL_DELETE_CHAN_LOCKED(dfs, delfreq, delchwidth); |
| 307 | |
| 308 | /* Update the wireless stack with the new NOL. */ |
| 309 | dfs_nol_update(dfs); |
| 310 | |
| 311 | dfs_mlme_nol_timeout_notification(dfs->dfs_pdev_obj); |
| 312 | chan = utils_dfs_freq_to_chan(delfreq); |
| 313 | utils_dfs_deliver_event(dfs->dfs_pdev_obj, delfreq, |
| 314 | WLAN_EV_NOL_FINISHED); |
| 315 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, |
| 316 | "remove channel %d from nol", chan); |
| 317 | utils_dfs_unmark_precac_nol_for_freq(dfs->dfs_pdev_obj, delfreq); |
| 318 | utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, |
| 319 | &delfreq, 1, DFS_NOL_RESET); |
| 320 | utils_dfs_save_nol(dfs->dfs_pdev_obj); |
| 321 | } |
| 322 | #else |
| 323 | #ifdef CONFIG_CHAN_NUM_API |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 324 | static os_timer_func(dfs_remove_from_nol) |
| 325 | { |
Abhijit Pradhan | 0c80b53 | 2017-04-29 19:01:25 +0530 | [diff] [blame] | 326 | struct dfs_nolelem *nol_arg; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 327 | struct wlan_dfs *dfs; |
| 328 | uint16_t delfreq; |
| 329 | uint16_t delchwidth; |
Arif Hussain | a23b014 | 2017-04-25 23:27:54 -0700 | [diff] [blame] | 330 | uint8_t chan; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 331 | |
Abhijit Pradhan | 0c80b53 | 2017-04-29 19:01:25 +0530 | [diff] [blame] | 332 | OS_GET_TIMER_ARG(nol_arg, struct dfs_nolelem *); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 333 | |
Abhijit Pradhan | 0c80b53 | 2017-04-29 19:01:25 +0530 | [diff] [blame] | 334 | dfs = nol_arg->nol_dfs; |
| 335 | delfreq = nol_arg->nol_freq; |
| 336 | delchwidth = nol_arg->nol_chwidth; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 337 | |
| 338 | /* Delete the given NOL entry. */ |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 339 | DFS_NOL_DELETE_CHAN_LOCKED(dfs, delfreq, delchwidth); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 340 | |
| 341 | /* Update the wireless stack with the new NOL. */ |
| 342 | dfs_nol_update(dfs); |
| 343 | |
| 344 | dfs_mlme_nol_timeout_notification(dfs->dfs_pdev_obj); |
Arif Hussain | a23b014 | 2017-04-25 23:27:54 -0700 | [diff] [blame] | 345 | chan = utils_dfs_freq_to_chan(delfreq); |
phadiman | b68fa39 | 2018-11-22 16:35:55 +0530 | [diff] [blame] | 346 | utils_dfs_deliver_event(dfs->dfs_pdev_obj, delfreq, |
| 347 | WLAN_EV_NOL_FINISHED); |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 348 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, |
| 349 | "remove channel %d from nol", chan); |
Vignesh Mohan | 242d8de | 2019-05-21 15:01:07 +0530 | [diff] [blame] | 350 | utils_dfs_unmark_precac_nol(dfs->dfs_pdev_obj, chan); |
Arif Hussain | 8d88af5 | 2017-02-26 21:25:42 -0800 | [diff] [blame] | 351 | utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, |
bings | 276c0f1 | 2018-01-19 14:35:34 +0800 | [diff] [blame] | 352 | &chan, 1, DFS_NOL_RESET); |
Arif Hussain | 6dfa7ee | 2017-10-10 17:03:26 -0700 | [diff] [blame] | 353 | utils_dfs_save_nol(dfs->dfs_pdev_obj); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 354 | } |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 355 | #endif |
| 356 | #endif |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 357 | |
| 358 | void dfs_print_nol(struct wlan_dfs *dfs) |
| 359 | { |
| 360 | struct dfs_nolelem *nol; |
| 361 | int i = 0; |
| 362 | uint32_t diff_ms, remaining_sec; |
| 363 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 364 | if (!dfs) { |
| 365 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 366 | return; |
| 367 | } |
| 368 | |
| 369 | nol = dfs->dfs_nol; |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 370 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "NOL"); |
Jeff Johnson | cba07b4 | 2019-03-20 12:14:17 -0700 | [diff] [blame] | 371 | while (nol) { |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 372 | diff_ms = qdf_system_ticks_to_msecs(qdf_system_ticks() - |
| 373 | nol->nol_start_ticks); |
| 374 | diff_ms = (nol->nol_timeout_ms - diff_ms); |
| 375 | remaining_sec = diff_ms / 1000; /* Convert to seconds */ |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 376 | dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, |
| 377 | "nol:%d channel=%d MHz width=%d MHz time left=%u seconds nol starttick=%llu", |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 378 | i++, nol->nol_freq, |
| 379 | nol->nol_chwidth, |
| 380 | remaining_sec, |
| 381 | (uint64_t)nol->nol_start_ticks); |
| 382 | nol = nol->nol_next; |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | void dfs_print_nolhistory(struct wlan_dfs *dfs) |
| 387 | { |
Shashikala Prabhu | 62ce226 | 2018-10-24 08:45:34 +0530 | [diff] [blame] | 388 | struct dfs_channel *chan_list; |
| 389 | int i, j; |
| 390 | int nchans; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 391 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 392 | if (!dfs) { |
| 393 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 394 | return; |
| 395 | } |
| 396 | |
Shashikala Prabhu | 62ce226 | 2018-10-24 08:45:34 +0530 | [diff] [blame] | 397 | nchans = dfs_get_num_chans(); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 398 | |
Shashikala Prabhu | 62ce226 | 2018-10-24 08:45:34 +0530 | [diff] [blame] | 399 | chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); |
| 400 | if (!chan_list) |
| 401 | return; |
| 402 | |
| 403 | utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, |
| 404 | (void *)chan_list, &nchans); |
| 405 | if (!nchans) { |
| 406 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); |
| 407 | qdf_mem_free(chan_list); |
| 408 | return; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 409 | } |
Shashikala Prabhu | 62ce226 | 2018-10-24 08:45:34 +0530 | [diff] [blame] | 410 | |
| 411 | for (i = 0, j = 0; i < nchans; i++, j++) |
| 412 | dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, |
| 413 | "nolhistory = %d channel = %d MHz", |
| 414 | j, chan_list[i].dfs_ch_freq); |
| 415 | |
| 416 | qdf_mem_free(chan_list); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | void dfs_get_nol(struct wlan_dfs *dfs, |
| 420 | struct dfsreq_nolelem *dfs_nol, |
| 421 | int *nchan) |
| 422 | { |
| 423 | struct dfs_nolelem *nol; |
| 424 | |
| 425 | *nchan = 0; |
| 426 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 427 | if (!dfs) { |
| 428 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 429 | return; |
| 430 | } |
| 431 | |
| 432 | nol = dfs->dfs_nol; |
Jeff Johnson | cba07b4 | 2019-03-20 12:14:17 -0700 | [diff] [blame] | 433 | while (nol) { |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 434 | dfs_nol[*nchan].nol_freq = nol->nol_freq; |
| 435 | dfs_nol[*nchan].nol_chwidth = nol->nol_chwidth; |
| 436 | dfs_nol[*nchan].nol_start_ticks = nol->nol_start_ticks; |
| 437 | dfs_nol[*nchan].nol_timeout_ms = nol->nol_timeout_ms; |
| 438 | ++(*nchan); |
| 439 | nol = nol->nol_next; |
| 440 | } |
| 441 | } |
| 442 | |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 443 | #ifdef CONFIG_CHAN_FREQ_API |
| 444 | void dfs_set_nol(struct wlan_dfs *dfs, |
| 445 | struct dfsreq_nolelem *dfs_nol, |
| 446 | int nchan) |
| 447 | { |
| 448 | #define TIME_IN_MS 1000 |
| 449 | uint32_t nol_time_lft_ms; |
| 450 | struct dfs_channel chan; |
| 451 | int i; |
| 452 | |
| 453 | if (!dfs) { |
| 454 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); |
| 455 | return; |
| 456 | } |
| 457 | |
| 458 | for (i = 0; i < nchan; i++) { |
| 459 | nol_time_lft_ms = |
| 460 | qdf_system_ticks_to_msecs(qdf_system_ticks() - |
| 461 | dfs_nol[i].nol_start_ticks); |
| 462 | |
| 463 | if (nol_time_lft_ms < dfs_nol[i].nol_timeout_ms) { |
| 464 | chan.dfs_ch_freq = dfs_nol[i].nol_freq; |
| 465 | chan.dfs_ch_flags = 0; |
| 466 | chan.dfs_ch_flagext = 0; |
| 467 | nol_time_lft_ms = |
| 468 | (dfs_nol[i].nol_timeout_ms - nol_time_lft_ms); |
| 469 | |
| 470 | DFS_NOL_ADD_CHAN_LOCKED(dfs, chan.dfs_ch_freq, |
| 471 | (nol_time_lft_ms / TIME_IN_MS)); |
| 472 | utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, |
| 473 | &chan.dfs_ch_freq, |
| 474 | 1, DFS_NOL_SET); |
| 475 | } |
| 476 | } |
| 477 | #undef TIME_IN_MS |
| 478 | dfs_nol_update(dfs); |
| 479 | } |
| 480 | #else |
| 481 | #ifdef CONFIG_CHAN_NUM_API |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 482 | void dfs_set_nol(struct wlan_dfs *dfs, |
| 483 | struct dfsreq_nolelem *dfs_nol, |
| 484 | int nchan) |
| 485 | { |
| 486 | #define TIME_IN_MS 1000 |
| 487 | uint32_t nol_time_left_ms; |
Shashikala Prabhu | a072dc5 | 2017-11-29 12:03:20 +0530 | [diff] [blame] | 488 | struct dfs_channel chan; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 489 | int i; |
bings | 276c0f1 | 2018-01-19 14:35:34 +0800 | [diff] [blame] | 490 | uint8_t chan_num; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 491 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 492 | if (!dfs) { |
| 493 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 494 | return; |
| 495 | } |
| 496 | |
| 497 | for (i = 0; i < nchan; i++) { |
| 498 | nol_time_left_ms = |
| 499 | qdf_system_ticks_to_msecs(qdf_system_ticks() - |
| 500 | dfs_nol[i].nol_start_ticks); |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 501 | |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 502 | if (nol_time_left_ms < dfs_nol[i].nol_timeout_ms) { |
Abhijit Pradhan | 7dc3900 | 2017-05-29 20:43:03 +0530 | [diff] [blame] | 503 | chan.dfs_ch_freq = dfs_nol[i].nol_freq; |
| 504 | chan.dfs_ch_flags = 0; |
| 505 | chan.dfs_ch_flagext = 0; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 506 | nol_time_left_ms = |
| 507 | (dfs_nol[i].nol_timeout_ms - nol_time_left_ms); |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 508 | |
| 509 | DFS_NOL_ADD_CHAN_LOCKED(dfs, chan.dfs_ch_freq, |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 510 | (nol_time_left_ms / TIME_IN_MS)); |
bings | 276c0f1 | 2018-01-19 14:35:34 +0800 | [diff] [blame] | 511 | chan_num = utils_dfs_freq_to_chan(chan.dfs_ch_freq); |
| 512 | utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, |
| 513 | &chan_num, 1, DFS_NOL_SET); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 514 | } |
| 515 | } |
| 516 | #undef TIME_IN_MS |
| 517 | dfs_nol_update(dfs); |
| 518 | } |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 519 | #endif |
| 520 | #endif |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 521 | |
| 522 | void dfs_nol_addchan(struct wlan_dfs *dfs, |
| 523 | uint16_t freq, |
| 524 | uint32_t dfs_nol_timeout) |
| 525 | { |
| 526 | #define TIME_IN_MS 1000 |
| 527 | #define TIME_IN_US (TIME_IN_MS * 1000) |
| 528 | struct dfs_nolelem *nol, *elem, *prev; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 529 | /* For now, assume all events are 20MHz wide. */ |
| 530 | int ch_width = 20; |
| 531 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 532 | if (!dfs) { |
| 533 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 534 | return; |
| 535 | } |
| 536 | nol = dfs->dfs_nol; |
| 537 | prev = dfs->dfs_nol; |
| 538 | elem = NULL; |
Jeff Johnson | cba07b4 | 2019-03-20 12:14:17 -0700 | [diff] [blame] | 539 | while (nol) { |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 540 | if ((nol->nol_freq == freq) && |
| 541 | (nol->nol_chwidth == ch_width)) { |
| 542 | nol->nol_start_ticks = qdf_system_ticks(); |
| 543 | nol->nol_timeout_ms = dfs_nol_timeout * TIME_IN_MS; |
| 544 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 545 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, |
| 546 | "Update OS Ticks for NOL %d MHz / %d MHz", |
| 547 | nol->nol_freq, nol->nol_chwidth); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 548 | |
| 549 | qdf_timer_stop(&nol->nol_timer); |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 550 | qdf_timer_mod(&nol->nol_timer, |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 551 | dfs_nol_timeout * TIME_IN_MS); |
| 552 | return; |
| 553 | } |
| 554 | prev = nol; |
| 555 | nol = nol->nol_next; |
| 556 | } |
| 557 | |
| 558 | /* Add a new element to the NOL. */ |
| 559 | elem = (struct dfs_nolelem *)qdf_mem_malloc(sizeof(struct dfs_nolelem)); |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 560 | if (!elem) |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 561 | goto bad; |
| 562 | |
Abhijit Pradhan | 93caac7 | 2018-03-09 11:42:06 +0530 | [diff] [blame] | 563 | qdf_mem_zero(elem, sizeof(*elem)); |
Abhijit Pradhan | 0c80b53 | 2017-04-29 19:01:25 +0530 | [diff] [blame] | 564 | elem->nol_dfs = dfs; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 565 | elem->nol_freq = freq; |
| 566 | elem->nol_chwidth = ch_width; |
| 567 | elem->nol_start_ticks = qdf_system_ticks(); |
| 568 | elem->nol_timeout_ms = dfs_nol_timeout*TIME_IN_MS; |
| 569 | elem->nol_next = NULL; |
| 570 | if (prev) { |
| 571 | prev->nol_next = elem; |
| 572 | } else { |
| 573 | /* This is the first element in the NOL. */ |
| 574 | dfs->dfs_nol = elem; |
| 575 | } |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 576 | |
| 577 | qdf_timer_init(NULL, |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 578 | &elem->nol_timer, dfs_remove_from_nol, |
| 579 | elem, QDF_TIMER_TYPE_WAKE_APPS); |
| 580 | |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 581 | qdf_timer_mod(&elem->nol_timer, dfs_nol_timeout * TIME_IN_MS); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 582 | |
| 583 | /* Update the NOL counter. */ |
| 584 | dfs->dfs_nol_count++; |
| 585 | |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 586 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, |
| 587 | "new NOL channel %d MHz / %d MHz", |
| 588 | elem->nol_freq, elem->nol_chwidth); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 589 | return; |
| 590 | |
| 591 | bad: |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 592 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL | WLAN_DEBUG_DFS, |
| 593 | "failed to allocate memory for nol entry"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 594 | |
| 595 | #undef TIME_IN_MS |
| 596 | #undef TIME_IN_US |
| 597 | } |
| 598 | |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 599 | void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 600 | uint32_t *nol_chfreq, |
| 601 | uint32_t *nol_chwidth, |
| 602 | int index) |
| 603 | { |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 604 | if (!dfs_nol) |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 605 | return; |
| 606 | |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 607 | *nol_chfreq = dfs_nol[index].nol_freq; |
| 608 | *nol_chwidth = dfs_nol[index].nol_chwidth; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | void dfs_nol_update(struct wlan_dfs *dfs) |
| 612 | { |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 613 | struct dfsreq_nolelem *dfs_nol; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 614 | int nlen; |
| 615 | |
Shashikala Prabhu | cf7d57c | 2018-09-17 14:27:47 +0530 | [diff] [blame] | 616 | if (!dfs->dfs_nol_count) { |
| 617 | dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "dfs_nol_count is zero"); |
Priyadarshnee S | b386080 | 2018-10-17 13:18:18 +0530 | [diff] [blame] | 618 | dfs_mlme_clist_update(dfs->dfs_pdev_obj, NULL, 0); |
Shashikala Prabhu | cf7d57c | 2018-09-17 14:27:47 +0530 | [diff] [blame] | 619 | return; |
| 620 | } |
| 621 | |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 622 | /* |
| 623 | * Allocate enough entries to store the NOL. At least on Linux |
| 624 | * (don't ask why), if you allocate a 0 entry array, the |
| 625 | * returned pointer is 0x10. Make sure you're aware of this |
| 626 | * when you start debugging. |
| 627 | */ |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 628 | dfs_nol = (struct dfsreq_nolelem *)qdf_mem_malloc( |
| 629 | sizeof(struct dfsreq_nolelem) * dfs->dfs_nol_count); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 630 | |
Madhvapathi Sriram | b73fc28 | 2019-01-07 09:12:25 +0530 | [diff] [blame] | 631 | /* |
| 632 | * XXX TODO: if this fails, just schedule a task to retry |
| 633 | * updating the NOL at a later stage. That way the NOL |
| 634 | * update _DOES_ happen - hopefully the failure was just |
| 635 | * temporary. |
| 636 | */ |
| 637 | if (!dfs_nol) |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 638 | return; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 639 | |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 640 | DFS_GET_NOL_LOCKED(dfs, dfs_nol, &nlen); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 641 | |
| 642 | /* Be suitably paranoid for now. */ |
| 643 | if (nlen != dfs->dfs_nol_count) |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 644 | dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "nlen (%d) != dfs->dfs_nol_count (%d)!", |
| 645 | nlen, dfs->dfs_nol_count); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 646 | |
| 647 | /* |
| 648 | * Call the driver layer to have it recalculate the NOL flags |
| 649 | * for each driver/umac channel. If the list is empty, pass |
| 650 | * NULL instead of dfs_nol. The operating system may have some |
| 651 | * special representation for "malloc a 0 byte memory region" |
| 652 | * - for example, Linux 2.6.38-13 (ubuntu) returns 0x10 rather |
| 653 | * than a valid allocation (and is likely not NULL so the |
| 654 | * pointer doesn't match NULL checks in any later code. |
| 655 | */ |
| 656 | dfs_mlme_clist_update(dfs->dfs_pdev_obj, |
| 657 | (nlen > 0) ? dfs_nol : NULL, |
| 658 | nlen); |
| 659 | |
| 660 | qdf_mem_free(dfs_nol); |
| 661 | } |
| 662 | |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 663 | void dfs_nol_free_list(struct wlan_dfs *dfs) |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 664 | { |
| 665 | struct dfs_nolelem *nol = dfs->dfs_nol, *prev; |
| 666 | |
| 667 | while (nol) { |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 668 | prev = nol; |
| 669 | nol = nol->nol_next; |
| 670 | qdf_mem_free(prev); |
| 671 | /* Update the NOL counter. */ |
| 672 | dfs->dfs_nol_count--; |
| 673 | |
| 674 | if (dfs->dfs_nol_count < 0) { |
Abhijit Pradhan | 7756158 | 2017-10-05 17:47:57 +0530 | [diff] [blame] | 675 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0"); |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 676 | ASSERT(0); |
| 677 | } |
| 678 | } |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 679 | |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 680 | dfs->dfs_nol = NULL; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 681 | } |
| 682 | |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 683 | void dfs_nol_timer_cleanup(struct wlan_dfs *dfs) |
| 684 | { |
| 685 | struct dfs_nolelem *nol; |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 686 | |
Shashikala Prabhu | e3807d4 | 2018-09-26 12:23:25 +0530 | [diff] [blame] | 687 | while (true) { |
Abhijit Pradhan | 01abdac | 2018-07-24 18:03:50 +0530 | [diff] [blame] | 688 | WLAN_DFSNOL_LOCK(dfs); |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 689 | |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 690 | nol = dfs->dfs_nol; |
Shashikala Prabhu | e3807d4 | 2018-09-26 12:23:25 +0530 | [diff] [blame] | 691 | if (nol) { |
| 692 | dfs->dfs_nol = nol->nol_next; |
| 693 | dfs->dfs_nol_count--; |
| 694 | WLAN_DFSNOL_UNLOCK(dfs); |
| 695 | |
| 696 | qdf_timer_free(&nol->nol_timer); |
| 697 | qdf_mem_free(nol); |
| 698 | } else { |
| 699 | WLAN_DFSNOL_UNLOCK(dfs); |
| 700 | break; |
| 701 | } |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 702 | } |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 703 | } |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 704 | |
Abhijit Pradhan | f8e62c0 | 2018-01-23 09:47:20 +0530 | [diff] [blame] | 705 | void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs) |
| 706 | { |
| 707 | qdf_flush_work(&dfs->dfs_nol_elem_free_work); |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 708 | } |
| 709 | |
Shaakir Mohamed | 6f35bb0 | 2017-09-15 15:52:21 -0700 | [diff] [blame] | 710 | int dfs_get_use_nol(struct wlan_dfs *dfs) |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 711 | { |
Shaakir Mohamed | 6f35bb0 | 2017-09-15 15:52:21 -0700 | [diff] [blame] | 712 | return dfs->dfs_use_nol; |
Abhijit Pradhan | 49f6943 | 2017-03-08 17:27:17 +0530 | [diff] [blame] | 713 | } |
| 714 | |
| 715 | int dfs_get_nol_timeout(struct wlan_dfs *dfs) |
| 716 | { |
| 717 | return dfs->wlan_dfs_nol_timeout; |
| 718 | } |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 719 | |
| 720 | void dfs_getnol(struct wlan_dfs *dfs, void *dfs_nolinfo) |
| 721 | { |
| 722 | struct dfsreq_nolinfo *nolinfo = (struct dfsreq_nolinfo *)dfs_nolinfo; |
| 723 | |
Abhijit Pradhan | 6744161 | 2018-01-02 21:46:25 +0530 | [diff] [blame] | 724 | DFS_GET_NOL_LOCKED(dfs, nolinfo->dfs_nol, &(nolinfo->dfs_ch_nchans)); |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 725 | } |
| 726 | |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 727 | #ifdef CONFIG_CHAN_FREQ_API |
| 728 | void dfs_clear_nolhistory(struct wlan_dfs *dfs) |
| 729 | { |
| 730 | struct dfs_channel *chan_list; |
| 731 | int nchans = 0; |
| 732 | bool sta_opmode; |
| 733 | |
| 734 | if (!dfs->dfs_is_stadfs_enabled) |
| 735 | return; |
| 736 | |
| 737 | sta_opmode = dfs_mlme_is_opmode_sta(dfs->dfs_pdev_obj); |
| 738 | if (!sta_opmode) |
| 739 | return; |
| 740 | |
| 741 | nchans = dfs_get_num_chans(); |
| 742 | |
| 743 | chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); |
| 744 | if (!chan_list) |
| 745 | return; |
| 746 | |
| 747 | utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, |
| 748 | (void *)chan_list, &nchans); |
| 749 | if (!nchans) { |
| 750 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); |
| 751 | qdf_mem_free(chan_list); |
| 752 | return; |
| 753 | } |
| 754 | |
| 755 | utils_dfs_reg_update_nol_history_chan_for_freq(dfs->dfs_pdev_obj, |
| 756 | (void *)chan_list, nchans, |
| 757 | DFS_NOL_HISTORY_RESET); |
| 758 | |
| 759 | qdf_mem_free(chan_list); |
| 760 | } |
| 761 | #else |
| 762 | #ifdef CONFIG_CHAN_NUM_API |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 763 | void dfs_clear_nolhistory(struct wlan_dfs *dfs) |
| 764 | { |
Shashikala Prabhu | 62ce226 | 2018-10-24 08:45:34 +0530 | [diff] [blame] | 765 | struct dfs_channel *chan_list; |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 766 | int nchans = 0; |
Shashikala Prabhu | 62ce226 | 2018-10-24 08:45:34 +0530 | [diff] [blame] | 767 | bool sta_opmode; |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 768 | |
Shashikala Prabhu | 62ce226 | 2018-10-24 08:45:34 +0530 | [diff] [blame] | 769 | if (!dfs->dfs_is_stadfs_enabled) |
| 770 | return; |
| 771 | |
| 772 | sta_opmode = dfs_mlme_is_opmode_sta(dfs->dfs_pdev_obj); |
| 773 | if (!sta_opmode) |
| 774 | return; |
| 775 | |
| 776 | nchans = dfs_get_num_chans(); |
| 777 | |
| 778 | chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); |
| 779 | if (!chan_list) |
| 780 | return; |
| 781 | |
| 782 | utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, |
| 783 | (void *)chan_list, &nchans); |
| 784 | if (!nchans) { |
| 785 | dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); |
| 786 | qdf_mem_free(chan_list); |
| 787 | return; |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 788 | } |
Shashikala Prabhu | 62ce226 | 2018-10-24 08:45:34 +0530 | [diff] [blame] | 789 | |
| 790 | utils_dfs_reg_update_nol_history_ch(dfs->dfs_pdev_obj, |
| 791 | (void *)chan_list, nchans, |
| 792 | DFS_NOL_HISTORY_RESET); |
| 793 | |
| 794 | qdf_mem_free(chan_list); |
Abhijit Pradhan | c5152c7 | 2017-06-29 13:27:45 +0530 | [diff] [blame] | 795 | } |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 796 | #endif |
| 797 | #endif |
Vignesh U | 8785b9d | 2018-04-20 22:01:25 +0530 | [diff] [blame] | 798 | |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 799 | #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) && \ |
| 800 | defined(CONFIG_CHAN_FREQ_API) |
| 801 | void dfs_remove_spoof_channel_from_nol(struct wlan_dfs *dfs) |
| 802 | { |
| 803 | struct dfs_nolelem *nol; |
| 804 | uint16_t freq_list[NUM_CHANNELS_160MHZ]; |
| 805 | int i, nchans = 0; |
| 806 | |
| 807 | nchans = dfs_get_bonding_channels_for_freq(dfs, |
| 808 | &dfs->dfs_radar_found_chan, |
| 809 | SEG_ID_PRIMARY, |
| 810 | DETECTOR_ID_0, |
| 811 | freq_list); |
| 812 | |
| 813 | WLAN_DFSNOL_LOCK(dfs); |
| 814 | for (i = 0; i < nchans && i < NUM_CHANNELS_160MHZ; i++) { |
| 815 | nol = dfs->dfs_nol; |
| 816 | while (nol) { |
| 817 | if (nol->nol_freq == freq_list[i]) { |
| 818 | OS_SET_TIMER(&nol->nol_timer, 0); |
| 819 | break; |
| 820 | } |
| 821 | nol = nol->nol_next; |
| 822 | } |
| 823 | } |
| 824 | WLAN_DFSNOL_UNLOCK(dfs); |
| 825 | |
| 826 | utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, |
| 827 | freq_list, nchans, DFS_NOL_RESET); |
| 828 | } |
| 829 | #else |
| 830 | #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) && \ |
| 831 | defined(CONFIG_CHAN_NUM_API) |
Vignesh U | 8785b9d | 2018-04-20 22:01:25 +0530 | [diff] [blame] | 832 | void dfs_remove_spoof_channel_from_nol(struct wlan_dfs *dfs) |
| 833 | { |
| 834 | struct dfs_nolelem *nol; |
| 835 | uint8_t channels[NUM_CHANNELS_160MHZ]; |
| 836 | int i, nchans = 0; |
| 837 | |
Vignesh Mohan | 56a6f31 | 2019-06-18 14:23:12 +0530 | [diff] [blame] | 838 | nchans = dfs_get_bonding_channels(dfs, |
| 839 | &dfs->dfs_radar_found_chan, |
| 840 | SEG_ID_PRIMARY, |
| 841 | DETECTOR_ID_0, |
Vignesh U | 8785b9d | 2018-04-20 22:01:25 +0530 | [diff] [blame] | 842 | channels); |
| 843 | |
| 844 | WLAN_DFSNOL_LOCK(dfs); |
| 845 | for (i = 0; i < nchans && i < NUM_CHANNELS_160MHZ; i++) { |
| 846 | nol = dfs->dfs_nol; |
| 847 | while (nol) { |
| 848 | if (nol->nol_freq == (uint16_t)utils_dfs_chan_to_freq( |
| 849 | channels[i])) { |
| 850 | OS_SET_TIMER(&nol->nol_timer, 0); |
| 851 | break; |
| 852 | } |
| 853 | nol = nol->nol_next; |
| 854 | } |
| 855 | } |
| 856 | WLAN_DFSNOL_UNLOCK(dfs); |
Abhijit Pradhan | 45098b9 | 2018-06-07 16:24:28 +0530 | [diff] [blame] | 857 | |
| 858 | utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, |
| 859 | channels, nchans, DFS_NOL_RESET); |
Vignesh U | 8785b9d | 2018-04-20 22:01:25 +0530 | [diff] [blame] | 860 | } |
| 861 | #endif |
Priyadarshnee S | 38da66f | 2019-10-09 14:33:18 +0530 | [diff] [blame^] | 862 | #endif |