drivers/net/wireless/ath/ath10k/wow.c

   1 /*
   2  * Copyright (c) 2015-2017 Qualcomm Atheros, Inc.
   3  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
   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 #include "mac.h"
  19
  20 #include <net/mac80211.h>
  21 #include "hif.h"
  22 #include "core.h"
  23 #include "debug.h"
  24 #include "wmi.h"
  25 #include "wmi-ops.h"
  26
  27 static const struct wiphy_wowlan_support ath10k_wowlan_support = {
  28         .flags = WIPHY_WOWLAN_DISCONNECT |
  29                  WIPHY_WOWLAN_MAGIC_PKT,
  30         .pattern_min_len = WOW_MIN_PATTERN_SIZE,
  31         .pattern_max_len = WOW_MAX_PATTERN_SIZE,
  32         .max_pkt_offset = WOW_MAX_PKT_OFFSET,
  33 };
  34
  35 static int ath10k_wow_vif_cleanup(struct ath10k_vif *arvif)
  36 {
  37         struct ath10k *ar = arvif->ar;
  38         int i, ret;
  39
  40         for (i = 0; i < WOW_EVENT_MAX; i++) {
  41                 ret = ath10k_wmi_wow_add_wakeup_event(ar, arvif->vdev_id, i, 0);
  42                 if (ret) {
  43                         ath10k_warn(ar, "failed to issue wow wakeup for event %s on vdev %i: %d\n",
  44                                     wow_wakeup_event(i), arvif->vdev_id, ret);
  45                         return ret;
  46                 }
  47         }
  48
  49         for (i = 0; i < ar->wow.max_num_patterns; i++) {
  50                 ret = ath10k_wmi_wow_del_pattern(ar, arvif->vdev_id, i);
  51                 if (ret) {
  52                         ath10k_warn(ar, "failed to delete wow pattern %d for vdev %i: %d\n",
  53                                     i, arvif->vdev_id, ret);
  54                         return ret;
  55                 }
  56         }
  57
  58         return 0;
  59 }
  60
  61 static int ath10k_wow_cleanup(struct ath10k *ar)
  62 {
  63         struct ath10k_vif *arvif;
  64         int ret;
  65
  66         lockdep_assert_held(&ar->conf_mutex);
  67
  68         list_for_each_entry(arvif, &ar->arvifs, list) {
  69                 ret = ath10k_wow_vif_cleanup(arvif);
  70                 if (ret) {
  71                         ath10k_warn(ar, "failed to clean wow wakeups on vdev %i: %d\n",
  72                                     arvif->vdev_id, ret);
  73                         return ret;
  74                 }
  75         }
  76
  77         return 0;
  78 }
  79
  80 /**
  81  * Convert a 802.3 format to a 802.11 format.
  82  *         +------------+-----------+--------+----------------+
  83  * 802.3:  |dest mac(6B)|src mac(6B)|type(2B)|     body...    |
  84  *         +------------+-----------+--------+----------------+
  85  *                |__         |_______    |____________  |________
  86  *                   |                |                |          |
  87  *         +--+------------+----+-----------+---------------+-----------+
  88  * 802.11: |4B|dest mac(6B)| 6B |src mac(6B)|  8B  |type(2B)|  body...  |
  89  *         +--+------------+----+-----------+---------------+-----------+
  90  */
  91 static void ath10k_wow_convert_8023_to_80211
  92                                         (struct cfg80211_pkt_pattern *new,
  93                                         const struct cfg80211_pkt_pattern *old)
  94 {
  95         u8 hdr_8023_pattern[ETH_HLEN] = {};
  96         u8 hdr_8023_bit_mask[ETH_HLEN] = {};
  97         u8 hdr_80211_pattern[WOW_HDR_LEN] = {};
  98         u8 hdr_80211_bit_mask[WOW_HDR_LEN] = {};
  99
 100         int total_len = old->pkt_offset + old->pattern_len;
 101         int hdr_80211_end_offset;
 102
 103         struct ieee80211_hdr_3addr *new_hdr_pattern =
 104                 (struct ieee80211_hdr_3addr *)hdr_80211_pattern;
 105         struct ieee80211_hdr_3addr *new_hdr_mask =
 106                 (struct ieee80211_hdr_3addr *)hdr_80211_bit_mask;
 107         struct ethhdr *old_hdr_pattern = (struct ethhdr *)hdr_8023_pattern;
 108         struct ethhdr *old_hdr_mask = (struct ethhdr *)hdr_8023_bit_mask;
 109         int hdr_len = sizeof(*new_hdr_pattern);
 110
 111         struct rfc1042_hdr *new_rfc_pattern =
 112                 (struct rfc1042_hdr *)(hdr_80211_pattern + hdr_len);
 113         struct rfc1042_hdr *new_rfc_mask =
 114                 (struct rfc1042_hdr *)(hdr_80211_bit_mask + hdr_len);
 115         int rfc_len = sizeof(*new_rfc_pattern);
 116
 117         memcpy(hdr_8023_pattern + old->pkt_offset,
 118                old->pattern, ETH_HLEN - old->pkt_offset);
 119         memcpy(hdr_8023_bit_mask + old->pkt_offset,
 120                old->mask, ETH_HLEN - old->pkt_offset);
 121
 122         /* Copy destination address */
 123         memcpy(new_hdr_pattern->addr1, old_hdr_pattern->h_dest, ETH_ALEN);
 124         memcpy(new_hdr_mask->addr1, old_hdr_mask->h_dest, ETH_ALEN);
 125
 126         /* Copy source address */
 127         memcpy(new_hdr_pattern->addr3, old_hdr_pattern->h_source, ETH_ALEN);
 128         memcpy(new_hdr_mask->addr3, old_hdr_mask->h_source, ETH_ALEN);
 129
 130         /* Copy logic link type */
 131         memcpy(&new_rfc_pattern->snap_type,
 132                &old_hdr_pattern->h_proto,
 133                sizeof(old_hdr_pattern->h_proto));
 134         memcpy(&new_rfc_mask->snap_type,
 135                &old_hdr_mask->h_proto,
 136                sizeof(old_hdr_mask->h_proto));
 137
 138         /* Calculate new pkt_offset */
 139         if (old->pkt_offset < ETH_ALEN)
 140                 new->pkt_offset = old->pkt_offset +
 141                         offsetof(struct ieee80211_hdr_3addr, addr1);
 142         else if (old->pkt_offset < offsetof(struct ethhdr, h_proto))
 143                 new->pkt_offset = old->pkt_offset +
 144                         offsetof(struct ieee80211_hdr_3addr, addr3) -
 145                         offsetof(struct ethhdr, h_source);
 146         else
 147                 new->pkt_offset = old->pkt_offset + hdr_len + rfc_len - ETH_HLEN;
 148
 149         /* Calculate new hdr end offset */
 150         if (total_len > ETH_HLEN)
 151                 hdr_80211_end_offset = hdr_len + rfc_len;
 152         else if (total_len > offsetof(struct ethhdr, h_proto))
 153                 hdr_80211_end_offset = hdr_len + rfc_len + total_len - ETH_HLEN;
 154         else if (total_len > ETH_ALEN)
 155                 hdr_80211_end_offset = total_len - ETH_ALEN +
 156                         offsetof(struct ieee80211_hdr_3addr, addr3);
 157         else
 158                 hdr_80211_end_offset = total_len +
 159                         offsetof(struct ieee80211_hdr_3addr, addr1);
 160
 161         new->pattern_len = hdr_80211_end_offset - new->pkt_offset;
 162
 163         memcpy((u8 *)new->pattern,
 164                hdr_80211_pattern + new->pkt_offset,
 165                new->pattern_len);
 166         memcpy((u8 *)new->mask,
 167                hdr_80211_bit_mask + new->pkt_offset,
 168                new->pattern_len);
 169
 170         if (total_len > ETH_HLEN) {
 171                 /* Copy frame body */
 172                 memcpy((u8 *)new->pattern + new->pattern_len,
 173                        (void *)old->pattern + ETH_HLEN - old->pkt_offset,
 174                        total_len - ETH_HLEN);
 175                 memcpy((u8 *)new->mask + new->pattern_len,
 176                        (void *)old->mask + ETH_HLEN - old->pkt_offset,
 177                        total_len - ETH_HLEN);
 178
 179                 new->pattern_len += total_len - ETH_HLEN;
 180         }
 181 }
 182
 183 static int ath10k_wmi_pno_check(struct ath10k *ar, u32 vdev_id,
 184                                 struct cfg80211_sched_scan_request *nd_config,
 185                                 struct wmi_pno_scan_req *pno)
 186 {
 187         int i, j, ret = 0;
 188         u8 ssid_len;
 189
 190         pno->enable = 1;
 191         pno->vdev_id = vdev_id;
 192         pno->uc_networks_count = nd_config->n_match_sets;
 193
 194         if (!pno->uc_networks_count ||
 195             pno->uc_networks_count > WMI_PNO_MAX_SUPP_NETWORKS)
 196                 return -EINVAL;
 197
 198         if (nd_config->n_channels > WMI_PNO_MAX_NETW_CHANNELS_EX)
 199                 return -EINVAL;
 200
 201         /* Filling per profile  params */
 202         for (i = 0; i < pno->uc_networks_count; i++) {
 203                 ssid_len = nd_config->match_sets[i].ssid.ssid_len;
 204
 205                 if (ssid_len == 0 || ssid_len > 32)
 206                         return -EINVAL;
 207
 208                 pno->a_networks[i].ssid.ssid_len = __cpu_to_le32(ssid_len);
 209
 210                 memcpy(pno->a_networks[i].ssid.ssid,
 211                        nd_config->match_sets[i].ssid.ssid,
 212                        nd_config->match_sets[i].ssid.ssid_len);
 213                 pno->a_networks[i].authentication = 0;
 214                 pno->a_networks[i].encryption     = 0;
 215                 pno->a_networks[i].bcast_nw_type  = 0;
 216
 217                 /*Copying list of valid channel into request */
 218                 pno->a_networks[i].channel_count = nd_config->n_channels;
 219                 pno->a_networks[i].rssi_threshold = nd_config->match_sets[i].rssi_thold;
 220
 221                 for (j = 0; j < nd_config->n_channels; j++) {
 222                         pno->a_networks[i].channels[j] =
 223                                         nd_config->channels[j]->center_freq;
 224                 }
 225         }
 226
 227         /* set scan to passive if no SSIDs are specified in the request */
 228         if (nd_config->n_ssids == 0)
 229                 pno->do_passive_scan = true;
 230         else
 231                 pno->do_passive_scan = false;
 232
 233         for (i = 0; i < nd_config->n_ssids; i++) {
 234                 j = 0;
 235                 while (j < pno->uc_networks_count) {
 236                         if (__le32_to_cpu(pno->a_networks[j].ssid.ssid_len) ==
 237                                 nd_config->ssids[i].ssid_len &&
 238                         (memcmp(pno->a_networks[j].ssid.ssid,
 239                                 nd_config->ssids[i].ssid,
 240                                 __le32_to_cpu(pno->a_networks[j].ssid.ssid_len)) == 0)) {
 241                                 pno->a_networks[j].bcast_nw_type = BCAST_HIDDEN;
 242                                 break;
 243                         }
 244                         j++;
 245                 }
 246         }
 247
 248         if (nd_config->n_scan_plans == 2) {
 249                 pno->fast_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
 250                 pno->fast_scan_max_cycles = nd_config->scan_plans[0].iterations;
 251                 pno->slow_scan_period =
 252                         nd_config->scan_plans[1].interval * MSEC_PER_SEC;
 253         } else if (nd_config->n_scan_plans == 1) {
 254                 pno->fast_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
 255                 pno->fast_scan_max_cycles = 1;
 256                 pno->slow_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
 257         } else {
 258                 ath10k_warn(ar, "Invalid number of scan plans %d !!",
 259                             nd_config->n_scan_plans);
 260         }
 261
 262         if (nd_config->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
 263                 /* enable mac randomization */
 264                 pno->enable_pno_scan_randomization = 1;
 265                 memcpy(pno->mac_addr, nd_config->mac_addr, ETH_ALEN);
 266                 memcpy(pno->mac_addr_mask, nd_config->mac_addr_mask, ETH_ALEN);
 267         }
 268
 269         pno->delay_start_time = nd_config->delay;
 270
 271         /* Current FW does not support min-max range for dwell time */
 272         pno->active_max_time = WMI_ACTIVE_MAX_CHANNEL_TIME;
 273         pno->passive_max_time = WMI_PASSIVE_MAX_CHANNEL_TIME;
 274         return ret;
 275 }
 276
 277 static int ath10k_vif_wow_set_wakeups(struct ath10k_vif *arvif,
 278                                       struct cfg80211_wowlan *wowlan)
 279 {
 280         int ret, i;
 281         unsigned long wow_mask = 0;
 282         struct ath10k *ar = arvif->ar;
 283         const struct cfg80211_pkt_pattern *patterns = wowlan->patterns;
 284         int pattern_id = 0;
 285
 286         /* Setup requested WOW features */
 287         switch (arvif->vdev_type) {
 288         case WMI_VDEV_TYPE_IBSS:
 289                 __set_bit(WOW_BEACON_EVENT, &wow_mask);
 290                  /* fall through */
 291         case WMI_VDEV_TYPE_AP:
 292                 __set_bit(WOW_DEAUTH_RECVD_EVENT, &wow_mask);
 293                 __set_bit(WOW_DISASSOC_RECVD_EVENT, &wow_mask);
 294                 __set_bit(WOW_PROBE_REQ_WPS_IE_EVENT, &wow_mask);
 295                 __set_bit(WOW_AUTH_REQ_EVENT, &wow_mask);
 296                 __set_bit(WOW_ASSOC_REQ_EVENT, &wow_mask);
 297                 __set_bit(WOW_HTT_EVENT, &wow_mask);
 298                 __set_bit(WOW_RA_MATCH_EVENT, &wow_mask);
 299                 break;
 300         case WMI_VDEV_TYPE_STA:
 301                 if (wowlan->disconnect) {
 302                         __set_bit(WOW_DEAUTH_RECVD_EVENT, &wow_mask);
 303                         __set_bit(WOW_DISASSOC_RECVD_EVENT, &wow_mask);
 304                         __set_bit(WOW_BMISS_EVENT, &wow_mask);
 305                         __set_bit(WOW_CSA_IE_EVENT, &wow_mask);
 306                 }
 307
 308                 if (wowlan->magic_pkt)
 309                         __set_bit(WOW_MAGIC_PKT_RECVD_EVENT, &wow_mask);
 310
 311                 if (wowlan->nd_config) {
 312                         struct wmi_pno_scan_req *pno;
 313                         int ret;
 314
 315                         pno = kzalloc(sizeof(*pno), GFP_KERNEL);
 316                         if (!pno)
 317                                 return -ENOMEM;
 318
 319                         ar->nlo_enabled = true;
 320
 321                         ret = ath10k_wmi_pno_check(ar, arvif->vdev_id,
 322                                                    wowlan->nd_config, pno);
 323                         if (!ret) {
 324                                 ath10k_wmi_wow_config_pno(ar, arvif->vdev_id, pno);
 325                                 __set_bit(WOW_NLO_DETECTED_EVENT, &wow_mask);
 326                         }
 327
 328                         kfree(pno);
 329                 }
 330                 break;
 331         default:
 332                 break;
 333         }
 334
 335         for (i = 0; i < wowlan->n_patterns; i++) {
 336                 u8 bitmask[WOW_MAX_PATTERN_SIZE] = {};
 337                 u8 ath_pattern[WOW_MAX_PATTERN_SIZE] = {};
 338                 u8 ath_bitmask[WOW_MAX_PATTERN_SIZE] = {};
 339                 struct cfg80211_pkt_pattern new_pattern = {};
 340                 struct cfg80211_pkt_pattern old_pattern = patterns[i];
 341                 int j;
 342
 343                 new_pattern.pattern = ath_pattern;
 344                 new_pattern.mask = ath_bitmask;
 345                 if (patterns[i].pattern_len > WOW_MAX_PATTERN_SIZE)
 346                         continue;
 347                 /* convert bytemask to bitmask */
 348                 for (j = 0; j < patterns[i].pattern_len; j++)
 349                         if (patterns[i].mask[j / 8] & BIT(j % 8))
 350                                 bitmask[j] = 0xff;
 351                 old_pattern.mask = bitmask;
 352                 new_pattern = old_pattern;
 353
 354                 if (ar->wmi.rx_decap_mode == ATH10K_HW_TXRX_NATIVE_WIFI) {
 355                         if (patterns[i].pkt_offset < ETH_HLEN)
 356                                 ath10k_wow_convert_8023_to_80211(&new_pattern,
 357                                                                  &old_pattern);
 358                         else
 359                                 new_pattern.pkt_offset += WOW_HDR_LEN - ETH_HLEN;
 360                 }
 361
 362                 if (WARN_ON(new_pattern.pattern_len > WOW_MAX_PATTERN_SIZE))
 363                         return -EINVAL;
 364
 365                 ret = ath10k_wmi_wow_add_pattern(ar, arvif->vdev_id,
 366                                                  pattern_id,
 367                                                  new_pattern.pattern,
 368                                                  new_pattern.mask,
 369                                                  new_pattern.pattern_len,
 370                                                  new_pattern.pkt_offset);
 371                 if (ret) {
 372                         ath10k_warn(ar, "failed to add pattern %i to vdev %i: %d\n",
 373                                     pattern_id,
 374                                     arvif->vdev_id, ret);
 375                         return ret;
 376                 }
 377
 378                 pattern_id++;
 379                 __set_bit(WOW_PATTERN_MATCH_EVENT, &wow_mask);
 380         }
 381
 382         for (i = 0; i < WOW_EVENT_MAX; i++) {
 383                 if (!test_bit(i, &wow_mask))
 384                         continue;
 385                 ret = ath10k_wmi_wow_add_wakeup_event(ar, arvif->vdev_id, i, 1);
 386                 if (ret) {
 387                         ath10k_warn(ar, "failed to enable wakeup event %s on vdev %i: %d\n",
 388                                     wow_wakeup_event(i), arvif->vdev_id, ret);
 389                         return ret;
 390                 }
 391         }
 392
 393         return 0;
 394 }
 395
 396 static int ath10k_wow_set_wakeups(struct ath10k *ar,
 397                                   struct cfg80211_wowlan *wowlan)
 398 {
 399         struct ath10k_vif *arvif;
 400         int ret;
 401
 402         lockdep_assert_held(&ar->conf_mutex);
 403
 404         list_for_each_entry(arvif, &ar->arvifs, list) {
 405                 ret = ath10k_vif_wow_set_wakeups(arvif, wowlan);
 406                 if (ret) {
 407                         ath10k_warn(ar, "failed to set wow wakeups on vdev %i: %d\n",
 408                                     arvif->vdev_id, ret);
 409                         return ret;
 410                 }
 411         }
 412
 413         return 0;
 414 }
 415
 416 static int ath10k_vif_wow_clean_nlo(struct ath10k_vif *arvif)
 417 {
 418         int ret = 0;
 419         struct ath10k *ar = arvif->ar;
 420
 421         switch (arvif->vdev_type) {
 422         case WMI_VDEV_TYPE_STA:
 423                 if (ar->nlo_enabled) {
 424                         struct wmi_pno_scan_req *pno;
 425
 426                         pno = kzalloc(sizeof(*pno), GFP_KERNEL);
 427                         if (!pno)
 428                                 return -ENOMEM;
 429
 430                         pno->enable = 0;
 431                         ar->nlo_enabled = false;
 432                         ret = ath10k_wmi_wow_config_pno(ar, arvif->vdev_id, pno);
 433                         kfree(pno);
 434                 }
 435                 break;
 436         default:
 437                 break;
 438         }
 439         return ret;
 440 }
 441
 442 static int ath10k_wow_nlo_cleanup(struct ath10k *ar)
 443 {
 444         struct ath10k_vif *arvif;
 445         int ret = 0;
 446
 447         lockdep_assert_held(&ar->conf_mutex);
 448
 449         list_for_each_entry(arvif, &ar->arvifs, list) {
 450                 ret = ath10k_vif_wow_clean_nlo(arvif);
 451                 if (ret) {
 452                         ath10k_warn(ar, "failed to clean nlo settings on vdev %i: %d\n",
 453                                     arvif->vdev_id, ret);
 454                         return ret;
 455                 }
 456         }
 457
 458         return 0;
 459 }
 460
 461 static int ath10k_wow_enable(struct ath10k *ar)
 462 {
 463         int ret;
 464
 465         lockdep_assert_held(&ar->conf_mutex);
 466
 467         reinit_completion(&ar->target_suspend);
 468
 469         ret = ath10k_wmi_wow_enable(ar);
 470         if (ret) {
 471                 ath10k_warn(ar, "failed to issue wow enable: %d\n", ret);
 472                 return ret;
 473         }
 474
 475         ret = wait_for_completion_timeout(&ar->target_suspend, 3 * HZ);
 476         if (ret == 0) {
 477                 ath10k_warn(ar, "timed out while waiting for suspend completion\n");
 478                 return -ETIMEDOUT;
 479         }
 480
 481         return 0;
 482 }
 483
 484 static int ath10k_wow_wakeup(struct ath10k *ar)
 485 {
 486         int ret;
 487
 488         lockdep_assert_held(&ar->conf_mutex);
 489
 490         reinit_completion(&ar->wow.wakeup_completed);
 491
 492         ret = ath10k_wmi_wow_host_wakeup_ind(ar);
 493         if (ret) {
 494                 ath10k_warn(ar, "failed to send wow wakeup indication: %d\n",
 495                             ret);
 496                 return ret;
 497         }
 498
 499         ret = wait_for_completion_timeout(&ar->wow.wakeup_completed, 3 * HZ);
 500         if (ret == 0) {
 501                 ath10k_warn(ar, "timed out while waiting for wow wakeup completion\n");
 502                 return -ETIMEDOUT;
 503         }
 504
 505         return 0;
 506 }
 507
 508 int ath10k_wow_op_suspend(struct ieee80211_hw *hw,
 509                           struct cfg80211_wowlan *wowlan)
 510 {
 511         struct ath10k *ar = hw->priv;
 512         int ret;
 513
 514         mutex_lock(&ar->conf_mutex);
 515
 516         if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
 517                               ar->running_fw->fw_file.fw_features))) {
 518                 ret = 1;
 519                 goto exit;
 520         }
 521
 522         ret =  ath10k_wow_cleanup(ar);
 523         if (ret) {
 524                 ath10k_warn(ar, "failed to clear wow wakeup events: %d\n",
 525                             ret);
 526                 goto exit;
 527         }
 528
 529         ret = ath10k_wow_set_wakeups(ar, wowlan);
 530         if (ret) {
 531                 ath10k_warn(ar, "failed to set wow wakeup events: %d\n",
 532                             ret);
 533                 goto cleanup;
 534         }
 535
 536         ath10k_mac_wait_tx_complete(ar);
 537
 538         ret = ath10k_wow_enable(ar);
 539         if (ret) {
 540                 ath10k_warn(ar, "failed to start wow: %d\n", ret);
 541                 goto cleanup;
 542         }
 543
 544         ret = ath10k_hif_suspend(ar);
 545         if (ret) {
 546                 ath10k_warn(ar, "failed to suspend hif: %d\n", ret);
 547                 goto wakeup;
 548         }
 549
 550         goto exit;
 551
 552 wakeup:
 553         ath10k_wow_wakeup(ar);
 554
 555 cleanup:
 556         ath10k_wow_cleanup(ar);
 557
 558 exit:
 559         mutex_unlock(&ar->conf_mutex);
 560         return ret ? 1 : 0;
 561 }
 562
 563 void ath10k_wow_op_set_wakeup(struct ieee80211_hw *hw, bool enabled)
 564 {
 565         struct ath10k *ar = hw->priv;
 566
 567         mutex_lock(&ar->conf_mutex);
 568         if (test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
 569                      ar->running_fw->fw_file.fw_features)) {
 570                 device_set_wakeup_enable(ar->dev, enabled);
 571         }
 572         mutex_unlock(&ar->conf_mutex);
 573 }
 574
 575 int ath10k_wow_op_resume(struct ieee80211_hw *hw)
 576 {
 577         struct ath10k *ar = hw->priv;
 578         int ret;
 579
 580         mutex_lock(&ar->conf_mutex);
 581
 582         if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
 583                               ar->running_fw->fw_file.fw_features))) {
 584                 ret = 1;
 585                 goto exit;
 586         }
 587
 588         ret = ath10k_hif_resume(ar);
 589         if (ret) {
 590                 ath10k_warn(ar, "failed to resume hif: %d\n", ret);
 591                 goto exit;
 592         }
 593
 594         ret = ath10k_wow_wakeup(ar);
 595         if (ret)
 596                 ath10k_warn(ar, "failed to wakeup from wow: %d\n", ret);
 597
 598         ret = ath10k_wow_nlo_cleanup(ar);
 599         if (ret)
 600                 ath10k_warn(ar, "failed to cleanup nlo: %d\n", ret);
 601
 602 exit:
 603         if (ret) {
 604                 switch (ar->state) {
 605                 case ATH10K_STATE_ON:
 606                         ar->state = ATH10K_STATE_RESTARTING;
 607                         ret = 1;
 608                         break;
 609                 case ATH10K_STATE_OFF:
 610                 case ATH10K_STATE_RESTARTING:
 611                 case ATH10K_STATE_RESTARTED:
 612                 case ATH10K_STATE_UTF:
 613                 case ATH10K_STATE_WEDGED:
 614                         ath10k_warn(ar, "encountered unexpected device state %d on resume, cannot recover\n",
 615                                     ar->state);
 616                         ret = -EIO;
 617                         break;
 618                 }
 619         }
 620
 621         mutex_unlock(&ar->conf_mutex);
 622         return ret;
 623 }
 624
 625 int ath10k_wow_init(struct ath10k *ar)
 626 {
 627         if (!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
 628                       ar->running_fw->fw_file.fw_features))
 629                 return 0;
 630
 631         if (WARN_ON(!test_bit(WMI_SERVICE_WOW, ar->wmi.svc_map)))
 632                 return -EINVAL;
 633
 634         ar->wow.wowlan_support = ath10k_wowlan_support;
 635
 636         if (ar->wmi.rx_decap_mode == ATH10K_HW_TXRX_NATIVE_WIFI) {
 637                 ar->wow.wowlan_support.pattern_max_len -= WOW_MAX_REDUCE;
 638                 ar->wow.wowlan_support.max_pkt_offset -= WOW_MAX_REDUCE;
 639         }
 640
 641         if (test_bit(WMI_SERVICE_NLO, ar->wmi.svc_map)) {
 642                 ar->wow.wowlan_support.flags |= WIPHY_WOWLAN_NET_DETECT;
 643                 ar->wow.wowlan_support.max_nd_match_sets = WMI_PNO_MAX_SUPP_NETWORKS;
 644         }
 645
 646         ar->wow.wowlan_support.n_patterns = ar->wow.max_num_patterns;
 647         ar->hw->wiphy->wowlan = &ar->wow.wowlan_support;
 648
 649         device_set_wakeup_capable(ar->dev, true);
 650
 651         return 0;
 652 }