Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Mac80211 STA API for ST-Ericsson CW1200 drivers |
| 3 | * |
| 4 | * Copyright (c) 2010, ST-Ericsson |
| 5 | * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/vmalloc.h> |
| 13 | #include <linux/sched.h> |
| 14 | #include <linux/firmware.h> |
| 15 | #include <linux/module.h> |
| 16 | |
| 17 | #include "cw1200.h" |
| 18 | #include "sta.h" |
| 19 | #include "fwio.h" |
| 20 | #include "bh.h" |
| 21 | #include "debug.h" |
| 22 | |
| 23 | #ifndef ERP_INFO_BYTE_OFFSET |
| 24 | #define ERP_INFO_BYTE_OFFSET 2 |
| 25 | #endif |
| 26 | |
| 27 | static void cw1200_do_join(struct cw1200_common *priv); |
| 28 | static void cw1200_do_unjoin(struct cw1200_common *priv); |
| 29 | |
| 30 | static int cw1200_upload_beacon(struct cw1200_common *priv); |
| 31 | static int cw1200_upload_pspoll(struct cw1200_common *priv); |
| 32 | static int cw1200_upload_null(struct cw1200_common *priv); |
| 33 | static int cw1200_upload_qosnull(struct cw1200_common *priv); |
| 34 | static int cw1200_start_ap(struct cw1200_common *priv); |
| 35 | static int cw1200_update_beaconing(struct cw1200_common *priv); |
| 36 | static int cw1200_enable_beaconing(struct cw1200_common *priv, |
| 37 | bool enable); |
| 38 | static void __cw1200_sta_notify(struct ieee80211_hw *dev, |
| 39 | struct ieee80211_vif *vif, |
| 40 | enum sta_notify_cmd notify_cmd, |
| 41 | int link_id); |
| 42 | static int __cw1200_flush(struct cw1200_common *priv, bool drop); |
| 43 | |
| 44 | static inline void __cw1200_free_event_queue(struct list_head *list) |
| 45 | { |
| 46 | struct cw1200_wsm_event *event, *tmp; |
| 47 | list_for_each_entry_safe(event, tmp, list, link) { |
| 48 | list_del(&event->link); |
| 49 | kfree(event); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | /* ******************************************************************** */ |
| 54 | /* STA API */ |
| 55 | |
| 56 | int cw1200_start(struct ieee80211_hw *dev) |
| 57 | { |
| 58 | struct cw1200_common *priv = dev->priv; |
| 59 | int ret = 0; |
| 60 | |
| 61 | cw1200_pm_stay_awake(&priv->pm_state, HZ); |
| 62 | |
| 63 | mutex_lock(&priv->conf_mutex); |
| 64 | |
| 65 | /* default EDCA */ |
| 66 | WSM_EDCA_SET(&priv->edca, 0, 0x0002, 0x0003, 0x0007, 47, 0xc8, false); |
| 67 | WSM_EDCA_SET(&priv->edca, 1, 0x0002, 0x0007, 0x000f, 94, 0xc8, false); |
| 68 | WSM_EDCA_SET(&priv->edca, 2, 0x0003, 0x000f, 0x03ff, 0, 0xc8, false); |
| 69 | WSM_EDCA_SET(&priv->edca, 3, 0x0007, 0x000f, 0x03ff, 0, 0xc8, false); |
| 70 | ret = wsm_set_edca_params(priv, &priv->edca); |
| 71 | if (ret) |
| 72 | goto out; |
| 73 | |
| 74 | ret = cw1200_set_uapsd_param(priv, &priv->edca); |
| 75 | if (ret) |
| 76 | goto out; |
| 77 | |
| 78 | priv->setbssparams_done = false; |
| 79 | |
| 80 | memcpy(priv->mac_addr, dev->wiphy->perm_addr, ETH_ALEN); |
| 81 | priv->mode = NL80211_IFTYPE_MONITOR; |
| 82 | priv->wep_default_key_id = -1; |
| 83 | |
| 84 | priv->cqm_beacon_loss_count = 10; |
| 85 | |
| 86 | ret = cw1200_setup_mac(priv); |
| 87 | if (ret) |
| 88 | goto out; |
| 89 | |
| 90 | out: |
| 91 | mutex_unlock(&priv->conf_mutex); |
| 92 | return ret; |
| 93 | } |
| 94 | |
| 95 | void cw1200_stop(struct ieee80211_hw *dev) |
| 96 | { |
| 97 | struct cw1200_common *priv = dev->priv; |
| 98 | LIST_HEAD(list); |
| 99 | int i; |
| 100 | |
| 101 | wsm_lock_tx(priv); |
| 102 | |
| 103 | while (down_trylock(&priv->scan.lock)) { |
| 104 | /* Scan is in progress. Force it to stop. */ |
| 105 | priv->scan.req = NULL; |
| 106 | schedule(); |
| 107 | } |
| 108 | up(&priv->scan.lock); |
| 109 | |
| 110 | cancel_delayed_work_sync(&priv->scan.probe_work); |
| 111 | cancel_delayed_work_sync(&priv->scan.timeout); |
| 112 | cancel_delayed_work_sync(&priv->clear_recent_scan_work); |
| 113 | cancel_delayed_work_sync(&priv->join_timeout); |
| 114 | cw1200_cqm_bssloss_sm(priv, 0, 0, 0); |
| 115 | cancel_work_sync(&priv->unjoin_work); |
| 116 | cancel_delayed_work_sync(&priv->link_id_gc_work); |
| 117 | flush_workqueue(priv->workqueue); |
| 118 | del_timer_sync(&priv->mcast_timeout); |
| 119 | mutex_lock(&priv->conf_mutex); |
| 120 | priv->mode = NL80211_IFTYPE_UNSPECIFIED; |
| 121 | priv->listening = false; |
| 122 | |
| 123 | spin_lock(&priv->event_queue_lock); |
| 124 | list_splice_init(&priv->event_queue, &list); |
| 125 | spin_unlock(&priv->event_queue_lock); |
| 126 | __cw1200_free_event_queue(&list); |
| 127 | |
| 128 | |
| 129 | priv->join_status = CW1200_JOIN_STATUS_PASSIVE; |
| 130 | priv->join_pending = false; |
| 131 | |
| 132 | for (i = 0; i < 4; i++) |
| 133 | cw1200_queue_clear(&priv->tx_queue[i]); |
| 134 | mutex_unlock(&priv->conf_mutex); |
| 135 | tx_policy_clean(priv); |
| 136 | |
| 137 | /* HACK! */ |
| 138 | if (atomic_xchg(&priv->tx_lock, 1) != 1) |
| 139 | pr_debug("[STA] TX is force-unlocked due to stop request.\n"); |
| 140 | |
| 141 | wsm_unlock_tx(priv); |
| 142 | atomic_xchg(&priv->tx_lock, 0); /* for recovery to work */ |
| 143 | } |
| 144 | |
| 145 | static int cw1200_bssloss_mitigation = 1; |
| 146 | module_param(cw1200_bssloss_mitigation, int, 0644); |
| 147 | MODULE_PARM_DESC(cw1200_bssloss_mitigation, "BSS Loss mitigation. 0 == disabled, 1 == enabled (default)"); |
| 148 | |
| 149 | |
| 150 | void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv, |
| 151 | int init, int good, int bad) |
| 152 | { |
| 153 | int tx = 0; |
| 154 | |
| 155 | priv->delayed_link_loss = 0; |
| 156 | cancel_work_sync(&priv->bss_params_work); |
| 157 | |
| 158 | pr_debug("[STA] CQM BSSLOSS_SM: state: %d init %d good %d bad: %d txlock: %d uj: %d\n", |
| 159 | priv->bss_loss_state, |
| 160 | init, good, bad, |
| 161 | atomic_read(&priv->tx_lock), |
| 162 | priv->delayed_unjoin); |
| 163 | |
| 164 | /* If we have a pending unjoin */ |
| 165 | if (priv->delayed_unjoin) |
| 166 | return; |
| 167 | |
| 168 | if (init) { |
| 169 | queue_delayed_work(priv->workqueue, |
| 170 | &priv->bss_loss_work, |
| 171 | HZ); |
| 172 | priv->bss_loss_state = 0; |
| 173 | |
| 174 | /* Skip the confimration procedure in P2P case */ |
| 175 | if (!priv->vif->p2p && !atomic_read(&priv->tx_lock)) |
| 176 | tx = 1; |
| 177 | } else if (good) { |
| 178 | cancel_delayed_work_sync(&priv->bss_loss_work); |
| 179 | priv->bss_loss_state = 0; |
| 180 | queue_work(priv->workqueue, &priv->bss_params_work); |
| 181 | } else if (bad) { |
| 182 | /* XXX Should we just keep going until we time out? */ |
| 183 | if (priv->bss_loss_state < 3) |
| 184 | tx = 1; |
| 185 | } else { |
| 186 | cancel_delayed_work_sync(&priv->bss_loss_work); |
| 187 | priv->bss_loss_state = 0; |
| 188 | } |
| 189 | |
| 190 | /* Bypass mitigation if it's disabled */ |
| 191 | if (!cw1200_bssloss_mitigation) |
| 192 | tx = 0; |
| 193 | |
| 194 | /* Spit out a NULL packet to our AP if necessary */ |
| 195 | if (tx) { |
| 196 | struct sk_buff *skb; |
| 197 | |
| 198 | priv->bss_loss_state++; |
| 199 | |
| 200 | skb = ieee80211_nullfunc_get(priv->hw, priv->vif); |
| 201 | WARN_ON(!skb); |
| 202 | if (skb) |
| 203 | cw1200_tx(priv->hw, NULL, skb); |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | int cw1200_add_interface(struct ieee80211_hw *dev, |
| 208 | struct ieee80211_vif *vif) |
| 209 | { |
| 210 | int ret; |
| 211 | struct cw1200_common *priv = dev->priv; |
| 212 | /* __le32 auto_calibration_mode = __cpu_to_le32(1); */ |
| 213 | |
| 214 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
| 215 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; |
| 216 | |
| 217 | mutex_lock(&priv->conf_mutex); |
| 218 | |
| 219 | if (priv->mode != NL80211_IFTYPE_MONITOR) { |
| 220 | mutex_unlock(&priv->conf_mutex); |
| 221 | return -EOPNOTSUPP; |
| 222 | } |
| 223 | |
| 224 | switch (vif->type) { |
| 225 | case NL80211_IFTYPE_STATION: |
| 226 | case NL80211_IFTYPE_ADHOC: |
| 227 | case NL80211_IFTYPE_MESH_POINT: |
| 228 | case NL80211_IFTYPE_AP: |
| 229 | priv->mode = vif->type; |
| 230 | break; |
| 231 | default: |
| 232 | mutex_unlock(&priv->conf_mutex); |
| 233 | return -EOPNOTSUPP; |
| 234 | } |
| 235 | |
| 236 | priv->vif = vif; |
| 237 | memcpy(priv->mac_addr, vif->addr, ETH_ALEN); |
| 238 | ret = cw1200_setup_mac(priv); |
| 239 | /* Enable auto-calibration */ |
| 240 | /* Exception in subsequent channel switch; disabled. |
| 241 | * wsm_write_mib(priv, WSM_MIB_ID_SET_AUTO_CALIBRATION_MODE, |
| 242 | * &auto_calibration_mode, sizeof(auto_calibration_mode)); |
| 243 | */ |
| 244 | |
| 245 | mutex_unlock(&priv->conf_mutex); |
| 246 | return ret; |
| 247 | } |
| 248 | |
| 249 | void cw1200_remove_interface(struct ieee80211_hw *dev, |
| 250 | struct ieee80211_vif *vif) |
| 251 | { |
| 252 | struct cw1200_common *priv = dev->priv; |
| 253 | struct wsm_reset reset = { |
| 254 | .reset_statistics = true, |
| 255 | }; |
| 256 | int i; |
| 257 | |
| 258 | mutex_lock(&priv->conf_mutex); |
| 259 | switch (priv->join_status) { |
| 260 | case CW1200_JOIN_STATUS_JOINING: |
| 261 | case CW1200_JOIN_STATUS_PRE_STA: |
| 262 | case CW1200_JOIN_STATUS_STA: |
| 263 | case CW1200_JOIN_STATUS_IBSS: |
| 264 | wsm_lock_tx(priv); |
| 265 | if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0) |
| 266 | wsm_unlock_tx(priv); |
| 267 | break; |
| 268 | case CW1200_JOIN_STATUS_AP: |
| 269 | for (i = 0; priv->link_id_map; ++i) { |
| 270 | if (priv->link_id_map & BIT(i)) { |
| 271 | reset.link_id = i; |
| 272 | wsm_reset(priv, &reset); |
| 273 | priv->link_id_map &= ~BIT(i); |
| 274 | } |
| 275 | } |
| 276 | memset(priv->link_id_db, 0, sizeof(priv->link_id_db)); |
| 277 | priv->sta_asleep_mask = 0; |
| 278 | priv->enable_beacon = false; |
| 279 | priv->tx_multicast = false; |
| 280 | priv->aid0_bit_set = false; |
| 281 | priv->buffered_multicasts = false; |
| 282 | priv->pspoll_mask = 0; |
| 283 | reset.link_id = 0; |
| 284 | wsm_reset(priv, &reset); |
| 285 | break; |
| 286 | case CW1200_JOIN_STATUS_MONITOR: |
| 287 | cw1200_update_listening(priv, false); |
| 288 | break; |
| 289 | default: |
| 290 | break; |
| 291 | } |
| 292 | priv->vif = NULL; |
| 293 | priv->mode = NL80211_IFTYPE_MONITOR; |
| 294 | memset(priv->mac_addr, 0, ETH_ALEN); |
| 295 | memset(&priv->p2p_ps_modeinfo, 0, sizeof(priv->p2p_ps_modeinfo)); |
| 296 | cw1200_free_keys(priv); |
| 297 | cw1200_setup_mac(priv); |
| 298 | priv->listening = false; |
| 299 | priv->join_status = CW1200_JOIN_STATUS_PASSIVE; |
| 300 | if (!__cw1200_flush(priv, true)) |
| 301 | wsm_unlock_tx(priv); |
| 302 | |
| 303 | mutex_unlock(&priv->conf_mutex); |
| 304 | } |
| 305 | |
| 306 | int cw1200_change_interface(struct ieee80211_hw *dev, |
| 307 | struct ieee80211_vif *vif, |
| 308 | enum nl80211_iftype new_type, |
| 309 | bool p2p) |
| 310 | { |
| 311 | int ret = 0; |
| 312 | pr_debug("change_interface new: %d (%d), old: %d (%d)\n", new_type, |
| 313 | p2p, vif->type, vif->p2p); |
| 314 | |
| 315 | if (new_type != vif->type || vif->p2p != p2p) { |
| 316 | cw1200_remove_interface(dev, vif); |
| 317 | vif->type = new_type; |
| 318 | vif->p2p = p2p; |
| 319 | ret = cw1200_add_interface(dev, vif); |
| 320 | } |
| 321 | |
| 322 | return ret; |
| 323 | } |
| 324 | |
| 325 | int cw1200_config(struct ieee80211_hw *dev, u32 changed) |
| 326 | { |
| 327 | int ret = 0; |
| 328 | struct cw1200_common *priv = dev->priv; |
| 329 | struct ieee80211_conf *conf = &dev->conf; |
| 330 | |
| 331 | pr_debug("CONFIG CHANGED: %08x\n", changed); |
| 332 | |
| 333 | down(&priv->scan.lock); |
| 334 | mutex_lock(&priv->conf_mutex); |
| 335 | /* TODO: IEEE80211_CONF_CHANGE_QOS */ |
| 336 | /* TODO: IEEE80211_CONF_CHANGE_LISTEN_INTERVAL */ |
| 337 | |
| 338 | if (changed & IEEE80211_CONF_CHANGE_POWER) { |
| 339 | priv->output_power = conf->power_level; |
| 340 | pr_debug("[STA] TX power: %d\n", priv->output_power); |
| 341 | wsm_set_output_power(priv, priv->output_power * 10); |
| 342 | } |
| 343 | |
| 344 | if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) && |
| 345 | (priv->channel != conf->chandef.chan)) { |
| 346 | struct ieee80211_channel *ch = conf->chandef.chan; |
| 347 | struct wsm_switch_channel channel = { |
| 348 | .channel_number = ch->hw_value, |
| 349 | }; |
| 350 | pr_debug("[STA] Freq %d (wsm ch: %d).\n", |
| 351 | ch->center_freq, ch->hw_value); |
| 352 | |
| 353 | /* __cw1200_flush() implicitly locks tx, if successful */ |
| 354 | if (!__cw1200_flush(priv, false)) { |
| 355 | if (!wsm_switch_channel(priv, &channel)) { |
| 356 | ret = wait_event_timeout(priv->channel_switch_done, |
| 357 | !priv->channel_switch_in_progress, |
| 358 | 3 * HZ); |
| 359 | if (ret) { |
| 360 | /* Already unlocks if successful */ |
| 361 | priv->channel = ch; |
| 362 | ret = 0; |
| 363 | } else { |
| 364 | ret = -ETIMEDOUT; |
| 365 | } |
| 366 | } else { |
| 367 | /* Unlock if switch channel fails */ |
| 368 | wsm_unlock_tx(priv); |
| 369 | } |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
| 374 | if (!(conf->flags & IEEE80211_CONF_PS)) |
| 375 | priv->powersave_mode.mode = WSM_PSM_ACTIVE; |
| 376 | else if (conf->dynamic_ps_timeout <= 0) |
| 377 | priv->powersave_mode.mode = WSM_PSM_PS; |
| 378 | else |
| 379 | priv->powersave_mode.mode = WSM_PSM_FAST_PS; |
| 380 | |
| 381 | /* Firmware requires that value for this 1-byte field must |
| 382 | * be specified in units of 500us. Values above the 128ms |
| 383 | * threshold are not supported. |
| 384 | */ |
| 385 | if (conf->dynamic_ps_timeout >= 0x80) |
| 386 | priv->powersave_mode.fast_psm_idle_period = 0xFF; |
| 387 | else |
| 388 | priv->powersave_mode.fast_psm_idle_period = |
| 389 | conf->dynamic_ps_timeout << 1; |
| 390 | |
| 391 | if (priv->join_status == CW1200_JOIN_STATUS_STA && |
| 392 | priv->bss_params.aid) |
| 393 | cw1200_set_pm(priv, &priv->powersave_mode); |
| 394 | } |
| 395 | |
| 396 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) { |
| 397 | /* TBD: It looks like it's transparent |
| 398 | * there's a monitor interface present -- use this |
| 399 | * to determine for example whether to calculate |
| 400 | * timestamps for packets or not, do not use instead |
| 401 | * of filter flags! |
| 402 | */ |
| 403 | } |
| 404 | |
| 405 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
| 406 | struct wsm_operational_mode mode = { |
| 407 | .power_mode = cw1200_power_mode, |
| 408 | .disable_more_flag_usage = true, |
| 409 | }; |
| 410 | |
| 411 | wsm_lock_tx(priv); |
| 412 | /* Disable p2p-dev mode forced by TX request */ |
| 413 | if ((priv->join_status == CW1200_JOIN_STATUS_MONITOR) && |
| 414 | (conf->flags & IEEE80211_CONF_IDLE) && |
| 415 | !priv->listening) { |
| 416 | cw1200_disable_listening(priv); |
| 417 | priv->join_status = CW1200_JOIN_STATUS_PASSIVE; |
| 418 | } |
| 419 | wsm_set_operational_mode(priv, &mode); |
| 420 | wsm_unlock_tx(priv); |
| 421 | } |
| 422 | |
| 423 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) { |
| 424 | pr_debug("[STA] Retry limits: %d (long), %d (short).\n", |
| 425 | conf->long_frame_max_tx_count, |
| 426 | conf->short_frame_max_tx_count); |
| 427 | spin_lock_bh(&priv->tx_policy_cache.lock); |
| 428 | priv->long_frame_max_tx_count = conf->long_frame_max_tx_count; |
| 429 | priv->short_frame_max_tx_count = |
| 430 | (conf->short_frame_max_tx_count < 0x0F) ? |
| 431 | conf->short_frame_max_tx_count : 0x0F; |
| 432 | priv->hw->max_rate_tries = priv->short_frame_max_tx_count; |
| 433 | spin_unlock_bh(&priv->tx_policy_cache.lock); |
| 434 | } |
| 435 | mutex_unlock(&priv->conf_mutex); |
| 436 | up(&priv->scan.lock); |
| 437 | return ret; |
| 438 | } |
| 439 | |
| 440 | void cw1200_update_filtering(struct cw1200_common *priv) |
| 441 | { |
| 442 | int ret; |
| 443 | bool bssid_filtering = !priv->rx_filter.bssid; |
| 444 | bool is_p2p = priv->vif && priv->vif->p2p; |
| 445 | bool is_sta = priv->vif && NL80211_IFTYPE_STATION == priv->vif->type; |
| 446 | |
| 447 | static struct wsm_beacon_filter_control bf_ctrl; |
| 448 | static struct wsm_mib_beacon_filter_table bf_tbl = { |
| 449 | .entry[0].ie_id = WLAN_EID_VENDOR_SPECIFIC, |
| 450 | .entry[0].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED | |
| 451 | WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT | |
| 452 | WSM_BEACON_FILTER_IE_HAS_APPEARED, |
| 453 | .entry[0].oui[0] = 0x50, |
| 454 | .entry[0].oui[1] = 0x6F, |
| 455 | .entry[0].oui[2] = 0x9A, |
| 456 | .entry[1].ie_id = WLAN_EID_HT_OPERATION, |
| 457 | .entry[1].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED | |
| 458 | WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT | |
| 459 | WSM_BEACON_FILTER_IE_HAS_APPEARED, |
| 460 | .entry[2].ie_id = WLAN_EID_ERP_INFO, |
| 461 | .entry[2].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED | |
| 462 | WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT | |
| 463 | WSM_BEACON_FILTER_IE_HAS_APPEARED, |
| 464 | }; |
| 465 | |
| 466 | if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE) |
| 467 | return; |
| 468 | else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) |
| 469 | bssid_filtering = false; |
| 470 | |
| 471 | if (priv->disable_beacon_filter) { |
| 472 | bf_ctrl.enabled = 0; |
| 473 | bf_ctrl.bcn_count = 1; |
| 474 | bf_tbl.num = __cpu_to_le32(0); |
| 475 | } else if (is_p2p || !is_sta) { |
| 476 | bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE | |
| 477 | WSM_BEACON_FILTER_AUTO_ERP; |
| 478 | bf_ctrl.bcn_count = 0; |
| 479 | bf_tbl.num = __cpu_to_le32(2); |
| 480 | } else { |
| 481 | bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE; |
| 482 | bf_ctrl.bcn_count = 0; |
| 483 | bf_tbl.num = __cpu_to_le32(3); |
| 484 | } |
| 485 | |
Solomon Peachy | 8b3e7be | 2013-06-11 09:49:40 -0400 | [diff] [blame] | 486 | /* When acting as p2p client being connected to p2p GO, in order to |
| 487 | * receive frames from a different p2p device, turn off bssid filter. |
| 488 | * |
| 489 | * WARNING: FW dependency! |
| 490 | * This can only be used with FW WSM371 and its successors. |
| 491 | * In that FW version even with bssid filter turned off, |
| 492 | * device will block most of the unwanted frames. |
| 493 | */ |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 494 | if (is_p2p) |
| 495 | bssid_filtering = false; |
| 496 | |
| 497 | ret = wsm_set_rx_filter(priv, &priv->rx_filter); |
| 498 | if (!ret) |
| 499 | ret = wsm_set_beacon_filter_table(priv, &bf_tbl); |
| 500 | if (!ret) |
| 501 | ret = wsm_beacon_filter_control(priv, &bf_ctrl); |
| 502 | if (!ret) |
| 503 | ret = wsm_set_bssid_filtering(priv, bssid_filtering); |
| 504 | if (!ret) |
| 505 | ret = wsm_set_multicast_filter(priv, &priv->multicast_filter); |
| 506 | if (ret) |
| 507 | wiphy_err(priv->hw->wiphy, |
| 508 | "Update filtering failed: %d.\n", ret); |
| 509 | return; |
| 510 | } |
| 511 | |
| 512 | void cw1200_update_filtering_work(struct work_struct *work) |
| 513 | { |
| 514 | struct cw1200_common *priv = |
| 515 | container_of(work, struct cw1200_common, |
| 516 | update_filtering_work); |
| 517 | |
| 518 | cw1200_update_filtering(priv); |
| 519 | } |
| 520 | |
| 521 | void cw1200_set_beacon_wakeup_period_work(struct work_struct *work) |
| 522 | { |
| 523 | struct cw1200_common *priv = |
| 524 | container_of(work, struct cw1200_common, |
| 525 | set_beacon_wakeup_period_work); |
| 526 | |
| 527 | wsm_set_beacon_wakeup_period(priv, |
| 528 | priv->beacon_int * priv->join_dtim_period > |
| 529 | MAX_BEACON_SKIP_TIME_MS ? 1 : |
| 530 | priv->join_dtim_period, 0); |
| 531 | } |
| 532 | |
| 533 | u64 cw1200_prepare_multicast(struct ieee80211_hw *hw, |
| 534 | struct netdev_hw_addr_list *mc_list) |
| 535 | { |
| 536 | static u8 broadcast_ipv6[ETH_ALEN] = { |
| 537 | 0x33, 0x33, 0x00, 0x00, 0x00, 0x01 |
| 538 | }; |
| 539 | static u8 broadcast_ipv4[ETH_ALEN] = { |
| 540 | 0x01, 0x00, 0x5e, 0x00, 0x00, 0x01 |
| 541 | }; |
| 542 | struct cw1200_common *priv = hw->priv; |
| 543 | struct netdev_hw_addr *ha; |
| 544 | int count = 0; |
| 545 | |
| 546 | /* Disable multicast filtering */ |
| 547 | priv->has_multicast_subscription = false; |
| 548 | memset(&priv->multicast_filter, 0x00, sizeof(priv->multicast_filter)); |
| 549 | |
| 550 | if (netdev_hw_addr_list_count(mc_list) > WSM_MAX_GRP_ADDRTABLE_ENTRIES) |
| 551 | return 0; |
| 552 | |
| 553 | /* Enable if requested */ |
| 554 | netdev_hw_addr_list_for_each(ha, mc_list) { |
| 555 | pr_debug("[STA] multicast: %pM\n", ha->addr); |
| 556 | memcpy(&priv->multicast_filter.macaddrs[count], |
| 557 | ha->addr, ETH_ALEN); |
| 558 | if (memcmp(ha->addr, broadcast_ipv4, ETH_ALEN) && |
| 559 | memcmp(ha->addr, broadcast_ipv6, ETH_ALEN)) |
| 560 | priv->has_multicast_subscription = true; |
| 561 | count++; |
| 562 | } |
| 563 | |
| 564 | if (count) { |
| 565 | priv->multicast_filter.enable = __cpu_to_le32(1); |
| 566 | priv->multicast_filter.num_addrs = __cpu_to_le32(count); |
| 567 | } |
| 568 | |
| 569 | return netdev_hw_addr_list_count(mc_list); |
| 570 | } |
| 571 | |
| 572 | void cw1200_configure_filter(struct ieee80211_hw *dev, |
| 573 | unsigned int changed_flags, |
| 574 | unsigned int *total_flags, |
| 575 | u64 multicast) |
| 576 | { |
| 577 | struct cw1200_common *priv = dev->priv; |
| 578 | bool listening = !!(*total_flags & |
| 579 | (FIF_PROMISC_IN_BSS | |
| 580 | FIF_OTHER_BSS | |
| 581 | FIF_BCN_PRBRESP_PROMISC | |
| 582 | FIF_PROBE_REQ)); |
| 583 | |
| 584 | *total_flags &= FIF_PROMISC_IN_BSS | |
| 585 | FIF_OTHER_BSS | |
| 586 | FIF_FCSFAIL | |
| 587 | FIF_BCN_PRBRESP_PROMISC | |
| 588 | FIF_PROBE_REQ; |
| 589 | |
| 590 | down(&priv->scan.lock); |
| 591 | mutex_lock(&priv->conf_mutex); |
| 592 | |
| 593 | priv->rx_filter.promiscuous = (*total_flags & FIF_PROMISC_IN_BSS) |
| 594 | ? 1 : 0; |
| 595 | priv->rx_filter.bssid = (*total_flags & (FIF_OTHER_BSS | |
| 596 | FIF_PROBE_REQ)) ? 1 : 0; |
| 597 | priv->rx_filter.fcs = (*total_flags & FIF_FCSFAIL) ? 1 : 0; |
| 598 | priv->disable_beacon_filter = !(*total_flags & |
| 599 | (FIF_BCN_PRBRESP_PROMISC | |
| 600 | FIF_PROMISC_IN_BSS | |
| 601 | FIF_PROBE_REQ)); |
| 602 | if (priv->listening != listening) { |
| 603 | priv->listening = listening; |
| 604 | wsm_lock_tx(priv); |
| 605 | cw1200_update_listening(priv, listening); |
| 606 | wsm_unlock_tx(priv); |
| 607 | } |
| 608 | cw1200_update_filtering(priv); |
| 609 | mutex_unlock(&priv->conf_mutex); |
| 610 | up(&priv->scan.lock); |
| 611 | } |
| 612 | |
| 613 | int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif, |
| 614 | u16 queue, const struct ieee80211_tx_queue_params *params) |
| 615 | { |
| 616 | struct cw1200_common *priv = dev->priv; |
| 617 | int ret = 0; |
| 618 | /* To prevent re-applying PM request OID again and again*/ |
| 619 | bool old_uapsd_flags; |
| 620 | |
| 621 | mutex_lock(&priv->conf_mutex); |
| 622 | |
| 623 | if (queue < dev->queues) { |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 624 | old_uapsd_flags = le16_to_cpu(priv->uapsd_info.uapsd_flags); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 625 | |
| 626 | WSM_TX_QUEUE_SET(&priv->tx_queue_params, queue, 0, 0, 0); |
| 627 | ret = wsm_set_tx_queue_params(priv, |
| 628 | &priv->tx_queue_params.params[queue], queue); |
| 629 | if (ret) { |
| 630 | ret = -EINVAL; |
| 631 | goto out; |
| 632 | } |
| 633 | |
| 634 | WSM_EDCA_SET(&priv->edca, queue, params->aifs, |
| 635 | params->cw_min, params->cw_max, |
| 636 | params->txop, 0xc8, |
| 637 | params->uapsd); |
| 638 | ret = wsm_set_edca_params(priv, &priv->edca); |
| 639 | if (ret) { |
| 640 | ret = -EINVAL; |
| 641 | goto out; |
| 642 | } |
| 643 | |
| 644 | if (priv->mode == NL80211_IFTYPE_STATION) { |
| 645 | ret = cw1200_set_uapsd_param(priv, &priv->edca); |
| 646 | if (!ret && priv->setbssparams_done && |
| 647 | (priv->join_status == CW1200_JOIN_STATUS_STA) && |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 648 | (old_uapsd_flags != le16_to_cpu(priv->uapsd_info.uapsd_flags))) |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 649 | ret = cw1200_set_pm(priv, &priv->powersave_mode); |
| 650 | } |
| 651 | } else { |
| 652 | ret = -EINVAL; |
| 653 | } |
| 654 | |
| 655 | out: |
| 656 | mutex_unlock(&priv->conf_mutex); |
| 657 | return ret; |
| 658 | } |
| 659 | |
| 660 | int cw1200_get_stats(struct ieee80211_hw *dev, |
| 661 | struct ieee80211_low_level_stats *stats) |
| 662 | { |
| 663 | struct cw1200_common *priv = dev->priv; |
| 664 | |
| 665 | memcpy(stats, &priv->stats, sizeof(*stats)); |
| 666 | return 0; |
| 667 | } |
| 668 | |
| 669 | int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg) |
| 670 | { |
| 671 | struct wsm_set_pm pm = *arg; |
| 672 | |
| 673 | if (priv->uapsd_info.uapsd_flags != 0) |
| 674 | pm.mode &= ~WSM_PSM_FAST_PS_FLAG; |
| 675 | |
| 676 | if (memcmp(&pm, &priv->firmware_ps_mode, |
| 677 | sizeof(struct wsm_set_pm))) { |
| 678 | priv->firmware_ps_mode = pm; |
| 679 | return wsm_set_pm(priv, &pm); |
| 680 | } else { |
| 681 | return 0; |
| 682 | } |
| 683 | } |
| 684 | |
| 685 | int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd, |
| 686 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
| 687 | struct ieee80211_key_conf *key) |
| 688 | { |
| 689 | int ret = -EOPNOTSUPP; |
| 690 | struct cw1200_common *priv = dev->priv; |
| 691 | struct ieee80211_key_seq seq; |
| 692 | |
| 693 | mutex_lock(&priv->conf_mutex); |
| 694 | |
| 695 | if (cmd == SET_KEY) { |
| 696 | u8 *peer_addr = NULL; |
| 697 | int pairwise = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ? |
| 698 | 1 : 0; |
| 699 | int idx = cw1200_alloc_key(priv); |
| 700 | struct wsm_add_key *wsm_key = &priv->keys[idx]; |
| 701 | |
| 702 | if (idx < 0) { |
| 703 | ret = -EINVAL; |
| 704 | goto finally; |
| 705 | } |
| 706 | |
| 707 | if (sta) |
| 708 | peer_addr = sta->addr; |
| 709 | |
| 710 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
| 711 | |
| 712 | switch (key->cipher) { |
| 713 | case WLAN_CIPHER_SUITE_WEP40: |
| 714 | case WLAN_CIPHER_SUITE_WEP104: |
| 715 | if (key->keylen > 16) { |
| 716 | cw1200_free_key(priv, idx); |
| 717 | ret = -EINVAL; |
| 718 | goto finally; |
| 719 | } |
| 720 | |
| 721 | if (pairwise) { |
| 722 | wsm_key->type = WSM_KEY_TYPE_WEP_PAIRWISE; |
| 723 | memcpy(wsm_key->wep_pairwise.peer, |
| 724 | peer_addr, ETH_ALEN); |
| 725 | memcpy(wsm_key->wep_pairwise.keydata, |
| 726 | &key->key[0], key->keylen); |
| 727 | wsm_key->wep_pairwise.keylen = key->keylen; |
| 728 | } else { |
| 729 | wsm_key->type = WSM_KEY_TYPE_WEP_DEFAULT; |
| 730 | memcpy(wsm_key->wep_group.keydata, |
| 731 | &key->key[0], key->keylen); |
| 732 | wsm_key->wep_group.keylen = key->keylen; |
| 733 | wsm_key->wep_group.keyid = key->keyidx; |
| 734 | } |
| 735 | break; |
| 736 | case WLAN_CIPHER_SUITE_TKIP: |
| 737 | ieee80211_get_key_rx_seq(key, 0, &seq); |
| 738 | if (pairwise) { |
| 739 | wsm_key->type = WSM_KEY_TYPE_TKIP_PAIRWISE; |
| 740 | memcpy(wsm_key->tkip_pairwise.peer, |
| 741 | peer_addr, ETH_ALEN); |
| 742 | memcpy(wsm_key->tkip_pairwise.keydata, |
| 743 | &key->key[0], 16); |
| 744 | memcpy(wsm_key->tkip_pairwise.tx_mic_key, |
| 745 | &key->key[16], 8); |
| 746 | memcpy(wsm_key->tkip_pairwise.rx_mic_key, |
| 747 | &key->key[24], 8); |
| 748 | } else { |
| 749 | size_t mic_offset = |
| 750 | (priv->mode == NL80211_IFTYPE_AP) ? |
| 751 | 16 : 24; |
| 752 | wsm_key->type = WSM_KEY_TYPE_TKIP_GROUP; |
| 753 | memcpy(wsm_key->tkip_group.keydata, |
| 754 | &key->key[0], 16); |
| 755 | memcpy(wsm_key->tkip_group.rx_mic_key, |
| 756 | &key->key[mic_offset], 8); |
| 757 | |
| 758 | wsm_key->tkip_group.rx_seqnum[0] = seq.tkip.iv16 & 0xff; |
| 759 | wsm_key->tkip_group.rx_seqnum[1] = (seq.tkip.iv16 >> 8) & 0xff; |
| 760 | wsm_key->tkip_group.rx_seqnum[2] = seq.tkip.iv32 & 0xff; |
| 761 | wsm_key->tkip_group.rx_seqnum[3] = (seq.tkip.iv32 >> 8) & 0xff; |
| 762 | wsm_key->tkip_group.rx_seqnum[4] = (seq.tkip.iv32 >> 16) & 0xff; |
| 763 | wsm_key->tkip_group.rx_seqnum[5] = (seq.tkip.iv32 >> 24) & 0xff; |
| 764 | wsm_key->tkip_group.rx_seqnum[6] = 0; |
| 765 | wsm_key->tkip_group.rx_seqnum[7] = 0; |
| 766 | |
| 767 | wsm_key->tkip_group.keyid = key->keyidx; |
| 768 | } |
| 769 | break; |
| 770 | case WLAN_CIPHER_SUITE_CCMP: |
| 771 | ieee80211_get_key_rx_seq(key, 0, &seq); |
| 772 | if (pairwise) { |
| 773 | wsm_key->type = WSM_KEY_TYPE_AES_PAIRWISE; |
| 774 | memcpy(wsm_key->aes_pairwise.peer, |
| 775 | peer_addr, ETH_ALEN); |
| 776 | memcpy(wsm_key->aes_pairwise.keydata, |
| 777 | &key->key[0], 16); |
| 778 | } else { |
| 779 | wsm_key->type = WSM_KEY_TYPE_AES_GROUP; |
| 780 | memcpy(wsm_key->aes_group.keydata, |
| 781 | &key->key[0], 16); |
| 782 | |
| 783 | wsm_key->aes_group.rx_seqnum[0] = seq.ccmp.pn[5]; |
| 784 | wsm_key->aes_group.rx_seqnum[1] = seq.ccmp.pn[4]; |
| 785 | wsm_key->aes_group.rx_seqnum[2] = seq.ccmp.pn[3]; |
| 786 | wsm_key->aes_group.rx_seqnum[3] = seq.ccmp.pn[2]; |
| 787 | wsm_key->aes_group.rx_seqnum[4] = seq.ccmp.pn[1]; |
| 788 | wsm_key->aes_group.rx_seqnum[5] = seq.ccmp.pn[0]; |
| 789 | wsm_key->aes_group.rx_seqnum[6] = 0; |
| 790 | wsm_key->aes_group.rx_seqnum[7] = 0; |
| 791 | wsm_key->aes_group.keyid = key->keyidx; |
| 792 | } |
| 793 | break; |
| 794 | case WLAN_CIPHER_SUITE_SMS4: |
| 795 | if (pairwise) { |
| 796 | wsm_key->type = WSM_KEY_TYPE_WAPI_PAIRWISE; |
| 797 | memcpy(wsm_key->wapi_pairwise.peer, |
| 798 | peer_addr, ETH_ALEN); |
| 799 | memcpy(wsm_key->wapi_pairwise.keydata, |
| 800 | &key->key[0], 16); |
| 801 | memcpy(wsm_key->wapi_pairwise.mic_key, |
| 802 | &key->key[16], 16); |
| 803 | wsm_key->wapi_pairwise.keyid = key->keyidx; |
| 804 | } else { |
| 805 | wsm_key->type = WSM_KEY_TYPE_WAPI_GROUP; |
| 806 | memcpy(wsm_key->wapi_group.keydata, |
| 807 | &key->key[0], 16); |
| 808 | memcpy(wsm_key->wapi_group.mic_key, |
| 809 | &key->key[16], 16); |
| 810 | wsm_key->wapi_group.keyid = key->keyidx; |
| 811 | } |
| 812 | break; |
| 813 | default: |
| 814 | pr_warn("Unhandled key type %d\n", key->cipher); |
| 815 | cw1200_free_key(priv, idx); |
| 816 | ret = -EOPNOTSUPP; |
| 817 | goto finally; |
| 818 | } |
| 819 | ret = wsm_add_key(priv, wsm_key); |
| 820 | if (!ret) |
| 821 | key->hw_key_idx = idx; |
| 822 | else |
| 823 | cw1200_free_key(priv, idx); |
| 824 | } else if (cmd == DISABLE_KEY) { |
| 825 | struct wsm_remove_key wsm_key = { |
| 826 | .index = key->hw_key_idx, |
| 827 | }; |
| 828 | |
| 829 | if (wsm_key.index > WSM_KEY_MAX_INDEX) { |
| 830 | ret = -EINVAL; |
| 831 | goto finally; |
| 832 | } |
| 833 | |
| 834 | cw1200_free_key(priv, wsm_key.index); |
| 835 | ret = wsm_remove_key(priv, &wsm_key); |
| 836 | } else { |
| 837 | pr_warn("Unhandled key command %d\n", cmd); |
| 838 | } |
| 839 | |
| 840 | finally: |
| 841 | mutex_unlock(&priv->conf_mutex); |
| 842 | return ret; |
| 843 | } |
| 844 | |
| 845 | void cw1200_wep_key_work(struct work_struct *work) |
| 846 | { |
| 847 | struct cw1200_common *priv = |
| 848 | container_of(work, struct cw1200_common, wep_key_work); |
| 849 | u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id); |
| 850 | struct cw1200_queue *queue = &priv->tx_queue[queue_id]; |
| 851 | __le32 wep_default_key_id = __cpu_to_le32( |
| 852 | priv->wep_default_key_id); |
| 853 | |
| 854 | pr_debug("[STA] Setting default WEP key: %d\n", |
| 855 | priv->wep_default_key_id); |
| 856 | wsm_flush_tx(priv); |
| 857 | wsm_write_mib(priv, WSM_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID, |
| 858 | &wep_default_key_id, sizeof(wep_default_key_id)); |
| 859 | cw1200_queue_requeue(queue, priv->pending_frame_id); |
| 860 | wsm_unlock_tx(priv); |
| 861 | } |
| 862 | |
| 863 | int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
| 864 | { |
| 865 | int ret = 0; |
| 866 | __le32 val32; |
| 867 | struct cw1200_common *priv = hw->priv; |
| 868 | |
| 869 | if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) |
| 870 | return 0; |
| 871 | |
| 872 | if (value != (u32) -1) |
| 873 | val32 = __cpu_to_le32(value); |
| 874 | else |
| 875 | val32 = 0; /* disabled */ |
| 876 | |
| 877 | if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) { |
| 878 | /* device is down, can _not_ set threshold */ |
| 879 | ret = -ENODEV; |
| 880 | goto out; |
| 881 | } |
| 882 | |
| 883 | if (priv->rts_threshold == value) |
| 884 | goto out; |
| 885 | |
| 886 | pr_debug("[STA] Setting RTS threshold: %d\n", |
| 887 | priv->rts_threshold); |
| 888 | |
| 889 | /* mutex_lock(&priv->conf_mutex); */ |
| 890 | ret = wsm_write_mib(priv, WSM_MIB_ID_DOT11_RTS_THRESHOLD, |
| 891 | &val32, sizeof(val32)); |
| 892 | if (!ret) |
| 893 | priv->rts_threshold = value; |
| 894 | /* mutex_unlock(&priv->conf_mutex); */ |
| 895 | |
| 896 | out: |
| 897 | return ret; |
| 898 | } |
| 899 | |
| 900 | /* If successful, LOCKS the TX queue! */ |
| 901 | static int __cw1200_flush(struct cw1200_common *priv, bool drop) |
| 902 | { |
| 903 | int i, ret; |
| 904 | |
| 905 | for (;;) { |
| 906 | /* TODO: correct flush handling is required when dev_stop. |
| 907 | * Temporary workaround: 2s |
| 908 | */ |
| 909 | if (drop) { |
| 910 | for (i = 0; i < 4; ++i) |
| 911 | cw1200_queue_clear(&priv->tx_queue[i]); |
| 912 | } else { |
| 913 | ret = wait_event_timeout( |
| 914 | priv->tx_queue_stats.wait_link_id_empty, |
| 915 | cw1200_queue_stats_is_empty( |
| 916 | &priv->tx_queue_stats, -1), |
| 917 | 2 * HZ); |
| 918 | } |
| 919 | |
| 920 | if (!drop && ret <= 0) { |
| 921 | ret = -ETIMEDOUT; |
| 922 | break; |
| 923 | } else { |
| 924 | ret = 0; |
| 925 | } |
| 926 | |
| 927 | wsm_lock_tx(priv); |
| 928 | if (!cw1200_queue_stats_is_empty(&priv->tx_queue_stats, -1)) { |
| 929 | /* Highly unlikely: WSM requeued frames. */ |
| 930 | wsm_unlock_tx(priv); |
| 931 | continue; |
| 932 | } |
| 933 | break; |
| 934 | } |
| 935 | return ret; |
| 936 | } |
| 937 | |
| 938 | void cw1200_flush(struct ieee80211_hw *hw, u32 queues, bool drop) |
| 939 | { |
| 940 | struct cw1200_common *priv = hw->priv; |
| 941 | |
| 942 | switch (priv->mode) { |
| 943 | case NL80211_IFTYPE_MONITOR: |
| 944 | drop = true; |
| 945 | break; |
| 946 | case NL80211_IFTYPE_AP: |
| 947 | if (!priv->enable_beacon) |
| 948 | drop = true; |
| 949 | break; |
| 950 | } |
| 951 | |
| 952 | if (!__cw1200_flush(priv, drop)) |
| 953 | wsm_unlock_tx(priv); |
| 954 | |
| 955 | return; |
| 956 | } |
| 957 | |
| 958 | /* ******************************************************************** */ |
| 959 | /* WSM callbacks */ |
| 960 | |
| 961 | void cw1200_free_event_queue(struct cw1200_common *priv) |
| 962 | { |
| 963 | LIST_HEAD(list); |
| 964 | |
| 965 | spin_lock(&priv->event_queue_lock); |
| 966 | list_splice_init(&priv->event_queue, &list); |
| 967 | spin_unlock(&priv->event_queue_lock); |
| 968 | |
| 969 | __cw1200_free_event_queue(&list); |
| 970 | } |
| 971 | |
| 972 | void cw1200_event_handler(struct work_struct *work) |
| 973 | { |
| 974 | struct cw1200_common *priv = |
| 975 | container_of(work, struct cw1200_common, event_handler); |
| 976 | struct cw1200_wsm_event *event; |
| 977 | LIST_HEAD(list); |
| 978 | |
| 979 | spin_lock(&priv->event_queue_lock); |
| 980 | list_splice_init(&priv->event_queue, &list); |
| 981 | spin_unlock(&priv->event_queue_lock); |
| 982 | |
| 983 | list_for_each_entry(event, &list, link) { |
| 984 | switch (event->evt.id) { |
| 985 | case WSM_EVENT_ERROR: |
| 986 | pr_err("Unhandled WSM Error from LMAC\n"); |
| 987 | break; |
| 988 | case WSM_EVENT_BSS_LOST: |
| 989 | pr_debug("[CQM] BSS lost.\n"); |
| 990 | cancel_work_sync(&priv->unjoin_work); |
| 991 | if (!down_trylock(&priv->scan.lock)) { |
| 992 | cw1200_cqm_bssloss_sm(priv, 1, 0, 0); |
| 993 | up(&priv->scan.lock); |
| 994 | } else { |
| 995 | /* Scan is in progress. Delay reporting. |
| 996 | * Scan complete will trigger bss_loss_work |
| 997 | */ |
| 998 | priv->delayed_link_loss = 1; |
| 999 | /* Also start a watchdog. */ |
| 1000 | queue_delayed_work(priv->workqueue, |
| 1001 | &priv->bss_loss_work, 5*HZ); |
| 1002 | } |
| 1003 | break; |
| 1004 | case WSM_EVENT_BSS_REGAINED: |
| 1005 | pr_debug("[CQM] BSS regained.\n"); |
| 1006 | cw1200_cqm_bssloss_sm(priv, 0, 0, 0); |
| 1007 | cancel_work_sync(&priv->unjoin_work); |
| 1008 | break; |
| 1009 | case WSM_EVENT_RADAR_DETECTED: |
| 1010 | wiphy_info(priv->hw->wiphy, "radar pulse detected\n"); |
| 1011 | break; |
| 1012 | case WSM_EVENT_RCPI_RSSI: |
| 1013 | { |
| 1014 | /* RSSI: signed Q8.0, RCPI: unsigned Q7.1 |
| 1015 | * RSSI = RCPI / 2 - 110 |
| 1016 | */ |
Solomon Peachy | 8b3e7be | 2013-06-11 09:49:40 -0400 | [diff] [blame] | 1017 | int rcpi_rssi = (int)(event->evt.data & 0xFF); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1018 | int cqm_evt; |
| 1019 | if (priv->cqm_use_rssi) |
Solomon Peachy | 8b3e7be | 2013-06-11 09:49:40 -0400 | [diff] [blame] | 1020 | rcpi_rssi = (s8)rcpi_rssi; |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1021 | else |
Solomon Peachy | 8b3e7be | 2013-06-11 09:49:40 -0400 | [diff] [blame] | 1022 | rcpi_rssi = rcpi_rssi / 2 - 110; |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1023 | |
Solomon Peachy | 8b3e7be | 2013-06-11 09:49:40 -0400 | [diff] [blame] | 1024 | cqm_evt = (rcpi_rssi <= priv->cqm_rssi_thold) ? |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1025 | NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW : |
| 1026 | NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; |
Solomon Peachy | 8b3e7be | 2013-06-11 09:49:40 -0400 | [diff] [blame] | 1027 | pr_debug("[CQM] RSSI event: %d.\n", rcpi_rssi); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1028 | ieee80211_cqm_rssi_notify(priv->vif, cqm_evt, |
| 1029 | GFP_KERNEL); |
| 1030 | break; |
| 1031 | } |
| 1032 | case WSM_EVENT_BT_INACTIVE: |
| 1033 | pr_warn("Unhandled BT INACTIVE from LMAC\n"); |
| 1034 | break; |
| 1035 | case WSM_EVENT_BT_ACTIVE: |
| 1036 | pr_warn("Unhandled BT ACTIVE from LMAC\n"); |
| 1037 | break; |
| 1038 | } |
| 1039 | } |
| 1040 | __cw1200_free_event_queue(&list); |
| 1041 | } |
| 1042 | |
| 1043 | void cw1200_bss_loss_work(struct work_struct *work) |
| 1044 | { |
| 1045 | struct cw1200_common *priv = |
| 1046 | container_of(work, struct cw1200_common, bss_loss_work.work); |
| 1047 | |
| 1048 | pr_debug("[CQM] Reporting connection loss.\n"); |
| 1049 | wsm_lock_tx(priv); |
| 1050 | if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0) |
| 1051 | wsm_unlock_tx(priv); |
| 1052 | } |
| 1053 | |
| 1054 | void cw1200_bss_params_work(struct work_struct *work) |
| 1055 | { |
| 1056 | struct cw1200_common *priv = |
| 1057 | container_of(work, struct cw1200_common, bss_params_work); |
| 1058 | mutex_lock(&priv->conf_mutex); |
| 1059 | |
| 1060 | priv->bss_params.reset_beacon_loss = 1; |
| 1061 | wsm_set_bss_params(priv, &priv->bss_params); |
| 1062 | priv->bss_params.reset_beacon_loss = 0; |
| 1063 | |
| 1064 | mutex_unlock(&priv->conf_mutex); |
| 1065 | } |
| 1066 | |
| 1067 | /* ******************************************************************** */ |
| 1068 | /* Internal API */ |
| 1069 | |
Solomon Peachy | 8b3e7be | 2013-06-11 09:49:40 -0400 | [diff] [blame] | 1070 | /* This function is called to Parse the SDD file |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1071 | * to extract listen_interval and PTA related information |
| 1072 | * sdd is a TLV: u8 id, u8 len, u8 data[] |
| 1073 | */ |
| 1074 | static int cw1200_parse_sdd_file(struct cw1200_common *priv) |
| 1075 | { |
| 1076 | const u8 *p = priv->sdd->data; |
| 1077 | int ret = 0; |
| 1078 | |
| 1079 | while (p + 2 <= priv->sdd->data + priv->sdd->size) { |
| 1080 | if (p + p[1] + 2 > priv->sdd->data + priv->sdd->size) { |
| 1081 | pr_warn("Malformed sdd structure\n"); |
| 1082 | return -1; |
| 1083 | } |
| 1084 | switch (p[0]) { |
| 1085 | case SDD_PTA_CFG_ELT_ID: { |
| 1086 | u16 v; |
| 1087 | if (p[1] < 4) { |
| 1088 | pr_warn("SDD_PTA_CFG_ELT_ID malformed\n"); |
| 1089 | ret = -1; |
| 1090 | break; |
| 1091 | } |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1092 | v = le16_to_cpu(*((__le16 *)(p + 2))); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1093 | if (!v) /* non-zero means this is enabled */ |
| 1094 | break; |
| 1095 | |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1096 | v = le16_to_cpu(*((__le16 *)(p + 4))); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1097 | priv->conf_listen_interval = (v >> 7) & 0x1F; |
| 1098 | pr_debug("PTA found; Listen Interval %d\n", |
| 1099 | priv->conf_listen_interval); |
| 1100 | break; |
| 1101 | } |
| 1102 | case SDD_REFERENCE_FREQUENCY_ELT_ID: { |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1103 | u16 clk = le16_to_cpu(*((__le16 *)(p + 2))); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1104 | if (clk != priv->hw_refclk) |
| 1105 | pr_warn("SDD file doesn't match configured refclk (%d vs %d)\n", |
| 1106 | clk, priv->hw_refclk); |
| 1107 | break; |
| 1108 | } |
| 1109 | default: |
| 1110 | break; |
| 1111 | } |
| 1112 | p += p[1] + 2; |
| 1113 | } |
| 1114 | |
| 1115 | if (!priv->bt_present) { |
| 1116 | pr_debug("PTA element NOT found.\n"); |
| 1117 | priv->conf_listen_interval = 0; |
| 1118 | } |
| 1119 | return ret; |
| 1120 | } |
| 1121 | |
| 1122 | int cw1200_setup_mac(struct cw1200_common *priv) |
| 1123 | { |
| 1124 | int ret = 0; |
| 1125 | |
| 1126 | /* NOTE: There is a bug in FW: it reports signal |
| 1127 | * as RSSI if RSSI subscription is enabled. |
| 1128 | * It's not enough to set WSM_RCPI_RSSI_USE_RSSI. |
| 1129 | * |
| 1130 | * NOTE2: RSSI based reports have been switched to RCPI, since |
| 1131 | * FW has a bug and RSSI reported values are not stable, |
| 1132 | * what can leads to signal level oscilations in user-end applications |
| 1133 | */ |
| 1134 | struct wsm_rcpi_rssi_threshold threshold = { |
| 1135 | .rssiRcpiMode = WSM_RCPI_RSSI_THRESHOLD_ENABLE | |
| 1136 | WSM_RCPI_RSSI_DONT_USE_UPPER | |
| 1137 | WSM_RCPI_RSSI_DONT_USE_LOWER, |
| 1138 | .rollingAverageCount = 16, |
| 1139 | }; |
| 1140 | |
| 1141 | struct wsm_configuration cfg = { |
| 1142 | .dot11StationId = &priv->mac_addr[0], |
| 1143 | }; |
| 1144 | |
| 1145 | /* Remember the decission here to make sure, we will handle |
| 1146 | * the RCPI/RSSI value correctly on WSM_EVENT_RCPI_RSS |
| 1147 | */ |
| 1148 | if (threshold.rssiRcpiMode & WSM_RCPI_RSSI_USE_RSSI) |
| 1149 | priv->cqm_use_rssi = true; |
| 1150 | |
| 1151 | if (!priv->sdd) { |
| 1152 | ret = request_firmware(&priv->sdd, priv->sdd_path, priv->pdev); |
| 1153 | if (ret) { |
| 1154 | pr_err("Can't load sdd file %s.\n", priv->sdd_path); |
| 1155 | return ret; |
| 1156 | } |
| 1157 | cw1200_parse_sdd_file(priv); |
| 1158 | } |
| 1159 | |
| 1160 | cfg.dpdData = priv->sdd->data; |
| 1161 | cfg.dpdData_size = priv->sdd->size; |
| 1162 | ret = wsm_configuration(priv, &cfg); |
| 1163 | if (ret) |
| 1164 | return ret; |
| 1165 | |
| 1166 | /* Configure RSSI/SCPI reporting as RSSI. */ |
| 1167 | wsm_set_rcpi_rssi_threshold(priv, &threshold); |
| 1168 | |
| 1169 | return 0; |
| 1170 | } |
| 1171 | |
| 1172 | static void cw1200_join_complete(struct cw1200_common *priv) |
| 1173 | { |
| 1174 | pr_debug("[STA] Join complete (%d)\n", priv->join_complete_status); |
| 1175 | |
| 1176 | priv->join_pending = false; |
| 1177 | if (priv->join_complete_status) { |
| 1178 | priv->join_status = CW1200_JOIN_STATUS_PASSIVE; |
| 1179 | cw1200_update_listening(priv, priv->listening); |
| 1180 | cw1200_do_unjoin(priv); |
| 1181 | ieee80211_connection_loss(priv->vif); |
| 1182 | } else { |
| 1183 | if (priv->mode == NL80211_IFTYPE_ADHOC) |
| 1184 | priv->join_status = CW1200_JOIN_STATUS_IBSS; |
| 1185 | else |
| 1186 | priv->join_status = CW1200_JOIN_STATUS_PRE_STA; |
| 1187 | } |
| 1188 | wsm_unlock_tx(priv); /* Clearing the lock held before do_join() */ |
| 1189 | } |
| 1190 | |
| 1191 | void cw1200_join_complete_work(struct work_struct *work) |
| 1192 | { |
| 1193 | struct cw1200_common *priv = |
| 1194 | container_of(work, struct cw1200_common, join_complete_work); |
| 1195 | mutex_lock(&priv->conf_mutex); |
| 1196 | cw1200_join_complete(priv); |
| 1197 | mutex_unlock(&priv->conf_mutex); |
| 1198 | } |
| 1199 | |
| 1200 | void cw1200_join_complete_cb(struct cw1200_common *priv, |
| 1201 | struct wsm_join_complete *arg) |
| 1202 | { |
| 1203 | pr_debug("[STA] cw1200_join_complete_cb called, status=%d.\n", |
| 1204 | arg->status); |
| 1205 | |
| 1206 | if (cancel_delayed_work(&priv->join_timeout)) { |
| 1207 | priv->join_complete_status = arg->status; |
| 1208 | queue_work(priv->workqueue, &priv->join_complete_work); |
| 1209 | } |
| 1210 | } |
| 1211 | |
| 1212 | /* MUST be called with tx_lock held! It will be unlocked for us. */ |
| 1213 | static void cw1200_do_join(struct cw1200_common *priv) |
| 1214 | { |
| 1215 | const u8 *bssid; |
| 1216 | struct ieee80211_bss_conf *conf = &priv->vif->bss_conf; |
| 1217 | struct cfg80211_bss *bss = NULL; |
| 1218 | struct wsm_protected_mgmt_policy mgmt_policy; |
| 1219 | struct wsm_join join = { |
| 1220 | .mode = conf->ibss_joined ? |
| 1221 | WSM_JOIN_MODE_IBSS : WSM_JOIN_MODE_BSS, |
| 1222 | .preamble_type = WSM_JOIN_PREAMBLE_LONG, |
| 1223 | .probe_for_join = 1, |
| 1224 | .atim_window = 0, |
| 1225 | .basic_rate_set = cw1200_rate_mask_to_wsm(priv, |
| 1226 | conf->basic_rates), |
| 1227 | }; |
| 1228 | if (delayed_work_pending(&priv->join_timeout)) { |
| 1229 | pr_warn("[STA] - Join request already pending, skipping..\n"); |
| 1230 | wsm_unlock_tx(priv); |
| 1231 | return; |
| 1232 | } |
| 1233 | |
| 1234 | if (priv->join_status) |
| 1235 | cw1200_do_unjoin(priv); |
| 1236 | |
| 1237 | bssid = priv->vif->bss_conf.bssid; |
| 1238 | |
| 1239 | bss = cfg80211_get_bss(priv->hw->wiphy, priv->channel, |
| 1240 | bssid, NULL, 0, 0, 0); |
| 1241 | |
| 1242 | if (!bss && !conf->ibss_joined) { |
| 1243 | wsm_unlock_tx(priv); |
| 1244 | return; |
| 1245 | } |
| 1246 | |
| 1247 | mutex_lock(&priv->conf_mutex); |
| 1248 | |
| 1249 | /* Under the conf lock: check scan status and |
| 1250 | * bail out if it is in progress. |
| 1251 | */ |
| 1252 | if (atomic_read(&priv->scan.in_progress)) { |
| 1253 | wsm_unlock_tx(priv); |
| 1254 | goto done_put; |
| 1255 | } |
| 1256 | |
| 1257 | priv->join_pending = true; |
| 1258 | |
| 1259 | /* Sanity check basic rates */ |
| 1260 | if (!join.basic_rate_set) |
| 1261 | join.basic_rate_set = 7; |
| 1262 | |
| 1263 | /* Sanity check beacon interval */ |
| 1264 | if (!priv->beacon_int) |
| 1265 | priv->beacon_int = 1; |
| 1266 | |
| 1267 | join.beacon_interval = priv->beacon_int; |
| 1268 | |
| 1269 | /* BT Coex related changes */ |
| 1270 | if (priv->bt_present) { |
| 1271 | if (((priv->conf_listen_interval * 100) % |
| 1272 | priv->beacon_int) == 0) |
| 1273 | priv->listen_interval = |
| 1274 | ((priv->conf_listen_interval * 100) / |
| 1275 | priv->beacon_int); |
| 1276 | else |
| 1277 | priv->listen_interval = |
| 1278 | ((priv->conf_listen_interval * 100) / |
| 1279 | priv->beacon_int + 1); |
| 1280 | } |
| 1281 | |
| 1282 | if (priv->hw->conf.ps_dtim_period) |
| 1283 | priv->join_dtim_period = priv->hw->conf.ps_dtim_period; |
| 1284 | join.dtim_period = priv->join_dtim_period; |
| 1285 | |
| 1286 | join.channel_number = priv->channel->hw_value; |
| 1287 | join.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ? |
| 1288 | WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G; |
| 1289 | |
| 1290 | memcpy(join.bssid, bssid, sizeof(join.bssid)); |
| 1291 | |
| 1292 | pr_debug("[STA] Join BSSID: %pM DTIM: %d, interval: %d\n", |
| 1293 | join.bssid, |
| 1294 | join.dtim_period, priv->beacon_int); |
| 1295 | |
| 1296 | if (!conf->ibss_joined) { |
| 1297 | const u8 *ssidie; |
| 1298 | rcu_read_lock(); |
| 1299 | ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); |
| 1300 | if (ssidie) { |
| 1301 | join.ssid_len = ssidie[1]; |
| 1302 | memcpy(join.ssid, &ssidie[2], join.ssid_len); |
| 1303 | } |
| 1304 | rcu_read_unlock(); |
| 1305 | } |
| 1306 | |
| 1307 | if (priv->vif->p2p) { |
| 1308 | join.flags |= WSM_JOIN_FLAGS_P2P_GO; |
| 1309 | join.basic_rate_set = |
| 1310 | cw1200_rate_mask_to_wsm(priv, 0xFF0); |
| 1311 | } |
| 1312 | |
| 1313 | /* Enable asynchronous join calls */ |
| 1314 | if (!conf->ibss_joined) { |
| 1315 | join.flags |= WSM_JOIN_FLAGS_FORCE; |
| 1316 | join.flags |= WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND; |
| 1317 | } |
| 1318 | |
| 1319 | wsm_flush_tx(priv); |
| 1320 | |
| 1321 | /* Stay Awake for Join and Auth Timeouts and a bit more */ |
| 1322 | cw1200_pm_stay_awake(&priv->pm_state, |
| 1323 | CW1200_JOIN_TIMEOUT + CW1200_AUTH_TIMEOUT); |
| 1324 | |
| 1325 | cw1200_update_listening(priv, false); |
| 1326 | |
| 1327 | /* Turn on Block ACKs */ |
| 1328 | wsm_set_block_ack_policy(priv, priv->ba_tx_tid_mask, |
| 1329 | priv->ba_rx_tid_mask); |
| 1330 | |
| 1331 | /* Set up timeout */ |
| 1332 | if (join.flags & WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND) { |
| 1333 | priv->join_status = CW1200_JOIN_STATUS_JOINING; |
| 1334 | queue_delayed_work(priv->workqueue, |
| 1335 | &priv->join_timeout, |
| 1336 | CW1200_JOIN_TIMEOUT); |
| 1337 | } |
| 1338 | |
| 1339 | /* 802.11w protected mgmt frames */ |
| 1340 | mgmt_policy.protectedMgmtEnable = 0; |
| 1341 | mgmt_policy.unprotectedMgmtFramesAllowed = 1; |
| 1342 | mgmt_policy.encryptionForAuthFrame = 1; |
| 1343 | wsm_set_protected_mgmt_policy(priv, &mgmt_policy); |
| 1344 | |
| 1345 | /* Perform actual join */ |
| 1346 | if (wsm_join(priv, &join)) { |
| 1347 | pr_err("[STA] cw1200_join_work: wsm_join failed!\n"); |
| 1348 | cancel_delayed_work_sync(&priv->join_timeout); |
| 1349 | cw1200_update_listening(priv, priv->listening); |
| 1350 | /* Tx lock still held, unjoin will clear it. */ |
| 1351 | if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0) |
| 1352 | wsm_unlock_tx(priv); |
| 1353 | } else { |
| 1354 | if (!(join.flags & WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND)) |
| 1355 | cw1200_join_complete(priv); /* Will clear tx_lock */ |
| 1356 | |
| 1357 | /* Upload keys */ |
| 1358 | cw1200_upload_keys(priv); |
| 1359 | |
| 1360 | /* Due to beacon filtering it is possible that the |
| 1361 | * AP's beacon is not known for the mac80211 stack. |
| 1362 | * Disable filtering temporary to make sure the stack |
| 1363 | * receives at least one |
| 1364 | */ |
| 1365 | priv->disable_beacon_filter = true; |
| 1366 | } |
| 1367 | cw1200_update_filtering(priv); |
| 1368 | |
| 1369 | done_put: |
| 1370 | mutex_unlock(&priv->conf_mutex); |
| 1371 | if (bss) |
| 1372 | cfg80211_put_bss(priv->hw->wiphy, bss); |
| 1373 | } |
| 1374 | |
| 1375 | void cw1200_join_timeout(struct work_struct *work) |
| 1376 | { |
| 1377 | struct cw1200_common *priv = |
| 1378 | container_of(work, struct cw1200_common, join_timeout.work); |
| 1379 | pr_debug("[WSM] Join timed out.\n"); |
| 1380 | wsm_lock_tx(priv); |
| 1381 | if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0) |
| 1382 | wsm_unlock_tx(priv); |
| 1383 | } |
| 1384 | |
| 1385 | static void cw1200_do_unjoin(struct cw1200_common *priv) |
| 1386 | { |
| 1387 | struct wsm_reset reset = { |
| 1388 | .reset_statistics = true, |
| 1389 | }; |
| 1390 | |
| 1391 | cancel_delayed_work_sync(&priv->join_timeout); |
| 1392 | |
| 1393 | mutex_lock(&priv->conf_mutex); |
| 1394 | priv->join_pending = false; |
| 1395 | |
| 1396 | if (atomic_read(&priv->scan.in_progress)) { |
| 1397 | if (priv->delayed_unjoin) |
| 1398 | wiphy_dbg(priv->hw->wiphy, "Delayed unjoin is already scheduled.\n"); |
| 1399 | else |
| 1400 | priv->delayed_unjoin = true; |
| 1401 | goto done; |
| 1402 | } |
| 1403 | |
| 1404 | priv->delayed_link_loss = false; |
| 1405 | |
| 1406 | if (!priv->join_status) |
| 1407 | goto done; |
| 1408 | |
| 1409 | if (priv->join_status > CW1200_JOIN_STATUS_IBSS) { |
| 1410 | wiphy_err(priv->hw->wiphy, "Unexpected: join status: %d\n", |
| 1411 | priv->join_status); |
| 1412 | BUG_ON(1); |
| 1413 | } |
| 1414 | |
| 1415 | cancel_work_sync(&priv->update_filtering_work); |
| 1416 | cancel_work_sync(&priv->set_beacon_wakeup_period_work); |
| 1417 | priv->join_status = CW1200_JOIN_STATUS_PASSIVE; |
| 1418 | |
| 1419 | /* Unjoin is a reset. */ |
| 1420 | wsm_flush_tx(priv); |
| 1421 | wsm_keep_alive_period(priv, 0); |
| 1422 | wsm_reset(priv, &reset); |
| 1423 | wsm_set_output_power(priv, priv->output_power * 10); |
| 1424 | priv->join_dtim_period = 0; |
| 1425 | cw1200_setup_mac(priv); |
| 1426 | cw1200_free_event_queue(priv); |
| 1427 | cancel_work_sync(&priv->event_handler); |
| 1428 | cw1200_update_listening(priv, priv->listening); |
| 1429 | cw1200_cqm_bssloss_sm(priv, 0, 0, 0); |
| 1430 | |
| 1431 | /* Disable Block ACKs */ |
| 1432 | wsm_set_block_ack_policy(priv, 0, 0); |
| 1433 | |
| 1434 | priv->disable_beacon_filter = false; |
| 1435 | cw1200_update_filtering(priv); |
| 1436 | memset(&priv->association_mode, 0, |
| 1437 | sizeof(priv->association_mode)); |
| 1438 | memset(&priv->bss_params, 0, sizeof(priv->bss_params)); |
| 1439 | priv->setbssparams_done = false; |
| 1440 | memset(&priv->firmware_ps_mode, 0, |
| 1441 | sizeof(priv->firmware_ps_mode)); |
| 1442 | |
| 1443 | pr_debug("[STA] Unjoin completed.\n"); |
| 1444 | |
| 1445 | done: |
| 1446 | mutex_unlock(&priv->conf_mutex); |
| 1447 | } |
| 1448 | |
| 1449 | void cw1200_unjoin_work(struct work_struct *work) |
| 1450 | { |
| 1451 | struct cw1200_common *priv = |
| 1452 | container_of(work, struct cw1200_common, unjoin_work); |
| 1453 | |
| 1454 | cw1200_do_unjoin(priv); |
| 1455 | |
| 1456 | /* Tell the stack we're dead */ |
| 1457 | ieee80211_connection_loss(priv->vif); |
| 1458 | |
| 1459 | wsm_unlock_tx(priv); |
| 1460 | } |
| 1461 | |
| 1462 | int cw1200_enable_listening(struct cw1200_common *priv) |
| 1463 | { |
| 1464 | struct wsm_start start = { |
| 1465 | .mode = WSM_START_MODE_P2P_DEV, |
| 1466 | .band = WSM_PHY_BAND_2_4G, |
| 1467 | .beacon_interval = 100, |
| 1468 | .dtim_period = 1, |
| 1469 | .probe_delay = 0, |
| 1470 | .basic_rate_set = 0x0F, |
| 1471 | }; |
| 1472 | |
| 1473 | if (priv->channel) { |
| 1474 | start.band = priv->channel->band == IEEE80211_BAND_5GHZ ? |
| 1475 | WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G; |
| 1476 | start.channel_number = priv->channel->hw_value; |
| 1477 | } else { |
| 1478 | start.band = WSM_PHY_BAND_2_4G; |
| 1479 | start.channel_number = 1; |
| 1480 | } |
| 1481 | |
| 1482 | return wsm_start(priv, &start); |
| 1483 | } |
| 1484 | |
| 1485 | int cw1200_disable_listening(struct cw1200_common *priv) |
| 1486 | { |
| 1487 | int ret; |
| 1488 | struct wsm_reset reset = { |
| 1489 | .reset_statistics = true, |
| 1490 | }; |
| 1491 | ret = wsm_reset(priv, &reset); |
| 1492 | return ret; |
| 1493 | } |
| 1494 | |
| 1495 | void cw1200_update_listening(struct cw1200_common *priv, bool enabled) |
| 1496 | { |
| 1497 | if (enabled) { |
| 1498 | if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE) { |
| 1499 | if (!cw1200_enable_listening(priv)) |
| 1500 | priv->join_status = CW1200_JOIN_STATUS_MONITOR; |
| 1501 | wsm_set_probe_responder(priv, true); |
| 1502 | } |
| 1503 | } else { |
| 1504 | if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) { |
| 1505 | if (!cw1200_disable_listening(priv)) |
| 1506 | priv->join_status = CW1200_JOIN_STATUS_PASSIVE; |
| 1507 | wsm_set_probe_responder(priv, false); |
| 1508 | } |
| 1509 | } |
| 1510 | } |
| 1511 | |
| 1512 | int cw1200_set_uapsd_param(struct cw1200_common *priv, |
| 1513 | const struct wsm_edca_params *arg) |
| 1514 | { |
| 1515 | int ret; |
| 1516 | u16 uapsd_flags = 0; |
| 1517 | |
| 1518 | /* Here's the mapping AC [queue, bit] |
| 1519 | * VO [0,3], VI [1, 2], BE [2, 1], BK [3, 0] |
| 1520 | */ |
| 1521 | |
| 1522 | if (arg->uapsd_enable[0]) |
| 1523 | uapsd_flags |= 1 << 3; |
| 1524 | |
| 1525 | if (arg->uapsd_enable[1]) |
| 1526 | uapsd_flags |= 1 << 2; |
| 1527 | |
| 1528 | if (arg->uapsd_enable[2]) |
| 1529 | uapsd_flags |= 1 << 1; |
| 1530 | |
| 1531 | if (arg->uapsd_enable[3]) |
| 1532 | uapsd_flags |= 1; |
| 1533 | |
| 1534 | /* Currently pseudo U-APSD operation is not supported, so setting |
| 1535 | * MinAutoTriggerInterval, MaxAutoTriggerInterval and |
| 1536 | * AutoTriggerStep to 0 |
| 1537 | */ |
| 1538 | |
| 1539 | priv->uapsd_info.uapsd_flags = cpu_to_le16(uapsd_flags); |
| 1540 | priv->uapsd_info.min_auto_trigger_interval = 0; |
| 1541 | priv->uapsd_info.max_auto_trigger_interval = 0; |
| 1542 | priv->uapsd_info.auto_trigger_step = 0; |
| 1543 | |
| 1544 | ret = wsm_set_uapsd_info(priv, &priv->uapsd_info); |
| 1545 | return ret; |
| 1546 | } |
| 1547 | |
| 1548 | /* ******************************************************************** */ |
| 1549 | /* AP API */ |
| 1550 | |
| 1551 | int cw1200_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 1552 | struct ieee80211_sta *sta) |
| 1553 | { |
| 1554 | struct cw1200_common *priv = hw->priv; |
| 1555 | struct cw1200_sta_priv *sta_priv = |
| 1556 | (struct cw1200_sta_priv *)&sta->drv_priv; |
| 1557 | struct cw1200_link_entry *entry; |
| 1558 | struct sk_buff *skb; |
| 1559 | |
| 1560 | if (priv->mode != NL80211_IFTYPE_AP) |
| 1561 | return 0; |
| 1562 | |
| 1563 | sta_priv->link_id = cw1200_find_link_id(priv, sta->addr); |
| 1564 | if (WARN_ON(!sta_priv->link_id)) { |
| 1565 | wiphy_info(priv->hw->wiphy, |
| 1566 | "[AP] No more link IDs available.\n"); |
| 1567 | return -ENOENT; |
| 1568 | } |
| 1569 | |
| 1570 | entry = &priv->link_id_db[sta_priv->link_id - 1]; |
| 1571 | spin_lock_bh(&priv->ps_state_lock); |
| 1572 | if ((sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) == |
| 1573 | IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) |
| 1574 | priv->sta_asleep_mask |= BIT(sta_priv->link_id); |
| 1575 | entry->status = CW1200_LINK_HARD; |
| 1576 | while ((skb = skb_dequeue(&entry->rx_queue))) |
| 1577 | ieee80211_rx_irqsafe(priv->hw, skb); |
| 1578 | spin_unlock_bh(&priv->ps_state_lock); |
| 1579 | return 0; |
| 1580 | } |
| 1581 | |
| 1582 | int cw1200_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 1583 | struct ieee80211_sta *sta) |
| 1584 | { |
| 1585 | struct cw1200_common *priv = hw->priv; |
| 1586 | struct cw1200_sta_priv *sta_priv = |
| 1587 | (struct cw1200_sta_priv *)&sta->drv_priv; |
| 1588 | struct cw1200_link_entry *entry; |
| 1589 | |
| 1590 | if (priv->mode != NL80211_IFTYPE_AP || !sta_priv->link_id) |
| 1591 | return 0; |
| 1592 | |
| 1593 | entry = &priv->link_id_db[sta_priv->link_id - 1]; |
| 1594 | spin_lock_bh(&priv->ps_state_lock); |
| 1595 | entry->status = CW1200_LINK_RESERVE; |
| 1596 | entry->timestamp = jiffies; |
| 1597 | wsm_lock_tx_async(priv); |
| 1598 | if (queue_work(priv->workqueue, &priv->link_id_work) <= 0) |
| 1599 | wsm_unlock_tx(priv); |
| 1600 | spin_unlock_bh(&priv->ps_state_lock); |
| 1601 | flush_workqueue(priv->workqueue); |
| 1602 | return 0; |
| 1603 | } |
| 1604 | |
| 1605 | static void __cw1200_sta_notify(struct ieee80211_hw *dev, |
| 1606 | struct ieee80211_vif *vif, |
| 1607 | enum sta_notify_cmd notify_cmd, |
| 1608 | int link_id) |
| 1609 | { |
| 1610 | struct cw1200_common *priv = dev->priv; |
| 1611 | u32 bit, prev; |
| 1612 | |
| 1613 | /* Zero link id means "for all link IDs" */ |
| 1614 | if (link_id) |
| 1615 | bit = BIT(link_id); |
| 1616 | else if (WARN_ON_ONCE(notify_cmd != STA_NOTIFY_AWAKE)) |
| 1617 | bit = 0; |
| 1618 | else |
| 1619 | bit = priv->link_id_map; |
| 1620 | prev = priv->sta_asleep_mask & bit; |
| 1621 | |
| 1622 | switch (notify_cmd) { |
| 1623 | case STA_NOTIFY_SLEEP: |
| 1624 | if (!prev) { |
| 1625 | if (priv->buffered_multicasts && |
| 1626 | !priv->sta_asleep_mask) |
| 1627 | queue_work(priv->workqueue, |
| 1628 | &priv->multicast_start_work); |
| 1629 | priv->sta_asleep_mask |= bit; |
| 1630 | } |
| 1631 | break; |
| 1632 | case STA_NOTIFY_AWAKE: |
| 1633 | if (prev) { |
| 1634 | priv->sta_asleep_mask &= ~bit; |
| 1635 | priv->pspoll_mask &= ~bit; |
| 1636 | if (priv->tx_multicast && link_id && |
| 1637 | !priv->sta_asleep_mask) |
| 1638 | queue_work(priv->workqueue, |
| 1639 | &priv->multicast_stop_work); |
| 1640 | cw1200_bh_wakeup(priv); |
| 1641 | } |
| 1642 | break; |
| 1643 | } |
| 1644 | } |
| 1645 | |
| 1646 | void cw1200_sta_notify(struct ieee80211_hw *dev, |
| 1647 | struct ieee80211_vif *vif, |
| 1648 | enum sta_notify_cmd notify_cmd, |
| 1649 | struct ieee80211_sta *sta) |
| 1650 | { |
| 1651 | struct cw1200_common *priv = dev->priv; |
| 1652 | struct cw1200_sta_priv *sta_priv = |
| 1653 | (struct cw1200_sta_priv *)&sta->drv_priv; |
| 1654 | |
| 1655 | spin_lock_bh(&priv->ps_state_lock); |
| 1656 | __cw1200_sta_notify(dev, vif, notify_cmd, sta_priv->link_id); |
| 1657 | spin_unlock_bh(&priv->ps_state_lock); |
| 1658 | } |
| 1659 | |
| 1660 | static void cw1200_ps_notify(struct cw1200_common *priv, |
| 1661 | int link_id, bool ps) |
| 1662 | { |
| 1663 | if (link_id > CW1200_MAX_STA_IN_AP_MODE) |
| 1664 | return; |
| 1665 | |
| 1666 | pr_debug("%s for LinkId: %d. STAs asleep: %.8X\n", |
| 1667 | ps ? "Stop" : "Start", |
| 1668 | link_id, priv->sta_asleep_mask); |
| 1669 | |
| 1670 | __cw1200_sta_notify(priv->hw, priv->vif, |
| 1671 | ps ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, link_id); |
| 1672 | } |
| 1673 | |
| 1674 | static int cw1200_set_tim_impl(struct cw1200_common *priv, bool aid0_bit_set) |
| 1675 | { |
| 1676 | struct sk_buff *skb; |
| 1677 | struct wsm_update_ie update_ie = { |
| 1678 | .what = WSM_UPDATE_IE_BEACON, |
| 1679 | .count = 1, |
| 1680 | }; |
| 1681 | u16 tim_offset, tim_length; |
| 1682 | |
| 1683 | pr_debug("[AP] mcast: %s.\n", aid0_bit_set ? "ena" : "dis"); |
| 1684 | |
| 1685 | skb = ieee80211_beacon_get_tim(priv->hw, priv->vif, |
| 1686 | &tim_offset, &tim_length); |
| 1687 | if (!skb) { |
| 1688 | if (!__cw1200_flush(priv, true)) |
| 1689 | wsm_unlock_tx(priv); |
| 1690 | return -ENOENT; |
| 1691 | } |
| 1692 | |
| 1693 | if (tim_offset && tim_length >= 6) { |
| 1694 | /* Ignore DTIM count from mac80211: |
| 1695 | * firmware handles DTIM internally. |
| 1696 | */ |
| 1697 | skb->data[tim_offset + 2] = 0; |
| 1698 | |
| 1699 | /* Set/reset aid0 bit */ |
| 1700 | if (aid0_bit_set) |
| 1701 | skb->data[tim_offset + 4] |= 1; |
| 1702 | else |
| 1703 | skb->data[tim_offset + 4] &= ~1; |
| 1704 | } |
| 1705 | |
| 1706 | update_ie.ies = &skb->data[tim_offset]; |
| 1707 | update_ie.length = tim_length; |
| 1708 | wsm_update_ie(priv, &update_ie); |
| 1709 | |
| 1710 | dev_kfree_skb(skb); |
| 1711 | |
| 1712 | return 0; |
| 1713 | } |
| 1714 | |
| 1715 | void cw1200_set_tim_work(struct work_struct *work) |
| 1716 | { |
| 1717 | struct cw1200_common *priv = |
| 1718 | container_of(work, struct cw1200_common, set_tim_work); |
| 1719 | (void)cw1200_set_tim_impl(priv, priv->aid0_bit_set); |
| 1720 | } |
| 1721 | |
| 1722 | int cw1200_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta, |
| 1723 | bool set) |
| 1724 | { |
| 1725 | struct cw1200_common *priv = dev->priv; |
| 1726 | queue_work(priv->workqueue, &priv->set_tim_work); |
| 1727 | return 0; |
| 1728 | } |
| 1729 | |
| 1730 | void cw1200_set_cts_work(struct work_struct *work) |
| 1731 | { |
| 1732 | struct cw1200_common *priv = |
| 1733 | container_of(work, struct cw1200_common, set_cts_work); |
| 1734 | |
| 1735 | u8 erp_ie[3] = {WLAN_EID_ERP_INFO, 0x1, 0}; |
| 1736 | struct wsm_update_ie update_ie = { |
| 1737 | .what = WSM_UPDATE_IE_BEACON, |
| 1738 | .count = 1, |
| 1739 | .ies = erp_ie, |
| 1740 | .length = 3, |
| 1741 | }; |
| 1742 | u32 erp_info; |
| 1743 | __le32 use_cts_prot; |
| 1744 | mutex_lock(&priv->conf_mutex); |
| 1745 | erp_info = priv->erp_info; |
| 1746 | mutex_unlock(&priv->conf_mutex); |
| 1747 | use_cts_prot = |
| 1748 | erp_info & WLAN_ERP_USE_PROTECTION ? |
| 1749 | __cpu_to_le32(1) : 0; |
| 1750 | |
| 1751 | erp_ie[ERP_INFO_BYTE_OFFSET] = erp_info; |
| 1752 | |
| 1753 | pr_debug("[STA] ERP information 0x%x\n", erp_info); |
| 1754 | |
| 1755 | wsm_write_mib(priv, WSM_MIB_ID_NON_ERP_PROTECTION, |
| 1756 | &use_cts_prot, sizeof(use_cts_prot)); |
| 1757 | wsm_update_ie(priv, &update_ie); |
| 1758 | |
| 1759 | return; |
| 1760 | } |
| 1761 | |
| 1762 | static int cw1200_set_btcoexinfo(struct cw1200_common *priv) |
| 1763 | { |
| 1764 | struct wsm_override_internal_txrate arg; |
| 1765 | int ret = 0; |
| 1766 | |
| 1767 | if (priv->mode == NL80211_IFTYPE_STATION) { |
| 1768 | /* Plumb PSPOLL and NULL template */ |
| 1769 | cw1200_upload_pspoll(priv); |
| 1770 | cw1200_upload_null(priv); |
| 1771 | cw1200_upload_qosnull(priv); |
| 1772 | } else { |
| 1773 | return 0; |
| 1774 | } |
| 1775 | |
| 1776 | memset(&arg, 0, sizeof(struct wsm_override_internal_txrate)); |
| 1777 | |
| 1778 | if (!priv->vif->p2p) { |
| 1779 | /* STATION mode */ |
| 1780 | if (priv->bss_params.operational_rate_set & ~0xF) { |
| 1781 | pr_debug("[STA] STA has ERP rates\n"); |
| 1782 | /* G or BG mode */ |
| 1783 | arg.internalTxRate = (__ffs( |
| 1784 | priv->bss_params.operational_rate_set & ~0xF)); |
| 1785 | } else { |
| 1786 | pr_debug("[STA] STA has non ERP rates\n"); |
| 1787 | /* B only mode */ |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1788 | arg.internalTxRate = (__ffs(le32_to_cpu(priv->association_mode.basic_rate_set))); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1789 | } |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1790 | arg.nonErpInternalTxRate = (__ffs(le32_to_cpu(priv->association_mode.basic_rate_set))); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1791 | } else { |
| 1792 | /* P2P mode */ |
| 1793 | arg.internalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF)); |
| 1794 | arg.nonErpInternalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF)); |
| 1795 | } |
| 1796 | |
| 1797 | pr_debug("[STA] BTCOEX_INFO MODE %d, internalTxRate : %x, nonErpInternalTxRate: %x\n", |
| 1798 | priv->mode, |
| 1799 | arg.internalTxRate, |
| 1800 | arg.nonErpInternalTxRate); |
| 1801 | |
| 1802 | ret = wsm_write_mib(priv, WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE, |
| 1803 | &arg, sizeof(arg)); |
| 1804 | |
| 1805 | return ret; |
| 1806 | } |
| 1807 | |
| 1808 | void cw1200_bss_info_changed(struct ieee80211_hw *dev, |
| 1809 | struct ieee80211_vif *vif, |
| 1810 | struct ieee80211_bss_conf *info, |
| 1811 | u32 changed) |
| 1812 | { |
| 1813 | struct cw1200_common *priv = dev->priv; |
| 1814 | bool do_join = false; |
| 1815 | |
| 1816 | mutex_lock(&priv->conf_mutex); |
| 1817 | |
| 1818 | pr_debug("BSS CHANGED: %08x\n", changed); |
| 1819 | |
| 1820 | /* TODO: BSS_CHANGED_QOS */ |
| 1821 | /* TODO: BSS_CHANGED_TXPOWER */ |
| 1822 | |
| 1823 | if (changed & BSS_CHANGED_ARP_FILTER) { |
| 1824 | struct wsm_mib_arp_ipv4_filter filter = {0}; |
| 1825 | int i; |
| 1826 | |
| 1827 | pr_debug("[STA] BSS_CHANGED_ARP_FILTER cnt: %d\n", |
| 1828 | info->arp_addr_cnt); |
| 1829 | |
| 1830 | /* Currently only one IP address is supported by firmware. |
| 1831 | * In case of more IPs arp filtering will be disabled. |
| 1832 | */ |
| 1833 | if (info->arp_addr_cnt > 0 && |
| 1834 | info->arp_addr_cnt <= WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES) { |
| 1835 | for (i = 0; i < info->arp_addr_cnt; i++) { |
| 1836 | filter.ipv4addrs[i] = info->arp_addr_list[i]; |
| 1837 | pr_debug("[STA] addr[%d]: 0x%X\n", |
| 1838 | i, filter.ipv4addrs[i]); |
| 1839 | } |
| 1840 | filter.enable = __cpu_to_le32(1); |
| 1841 | } |
| 1842 | |
| 1843 | pr_debug("[STA] arp ip filter enable: %d\n", |
| 1844 | __le32_to_cpu(filter.enable)); |
| 1845 | |
| 1846 | wsm_set_arp_ipv4_filter(priv, &filter); |
| 1847 | } |
| 1848 | |
| 1849 | if (changed & |
| 1850 | (BSS_CHANGED_BEACON | |
| 1851 | BSS_CHANGED_AP_PROBE_RESP | |
| 1852 | BSS_CHANGED_BSSID | |
| 1853 | BSS_CHANGED_SSID | |
| 1854 | BSS_CHANGED_IBSS)) { |
| 1855 | pr_debug("BSS_CHANGED_BEACON\n"); |
| 1856 | priv->beacon_int = info->beacon_int; |
| 1857 | cw1200_update_beaconing(priv); |
| 1858 | cw1200_upload_beacon(priv); |
| 1859 | } |
| 1860 | |
| 1861 | if (changed & BSS_CHANGED_BEACON_ENABLED) { |
| 1862 | pr_debug("BSS_CHANGED_BEACON_ENABLED (%d)\n", info->enable_beacon); |
| 1863 | |
| 1864 | if (priv->enable_beacon != info->enable_beacon) { |
| 1865 | cw1200_enable_beaconing(priv, info->enable_beacon); |
| 1866 | priv->enable_beacon = info->enable_beacon; |
| 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | if (changed & BSS_CHANGED_BEACON_INT) { |
| 1871 | pr_debug("CHANGED_BEACON_INT\n"); |
| 1872 | if (info->ibss_joined) |
| 1873 | do_join = true; |
| 1874 | else if (priv->join_status == CW1200_JOIN_STATUS_AP) |
| 1875 | cw1200_update_beaconing(priv); |
| 1876 | } |
| 1877 | |
| 1878 | /* assoc/disassoc, or maybe AID changed */ |
| 1879 | if (changed & BSS_CHANGED_ASSOC) { |
| 1880 | wsm_lock_tx(priv); |
| 1881 | priv->wep_default_key_id = -1; |
| 1882 | wsm_unlock_tx(priv); |
| 1883 | } |
| 1884 | |
| 1885 | if (changed & BSS_CHANGED_BSSID) { |
| 1886 | pr_debug("BSS_CHANGED_BSSID\n"); |
| 1887 | do_join = true; |
| 1888 | } |
| 1889 | |
| 1890 | if (changed & |
| 1891 | (BSS_CHANGED_ASSOC | |
| 1892 | BSS_CHANGED_BSSID | |
| 1893 | BSS_CHANGED_IBSS | |
| 1894 | BSS_CHANGED_BASIC_RATES | |
| 1895 | BSS_CHANGED_HT)) { |
| 1896 | pr_debug("BSS_CHANGED_ASSOC\n"); |
| 1897 | if (info->assoc) { |
| 1898 | if (priv->join_status < CW1200_JOIN_STATUS_PRE_STA) { |
| 1899 | ieee80211_connection_loss(vif); |
| 1900 | mutex_unlock(&priv->conf_mutex); |
| 1901 | return; |
| 1902 | } else if (priv->join_status == CW1200_JOIN_STATUS_PRE_STA) { |
| 1903 | priv->join_status = CW1200_JOIN_STATUS_STA; |
| 1904 | } |
| 1905 | } else { |
| 1906 | do_join = true; |
| 1907 | } |
| 1908 | |
| 1909 | if (info->assoc || info->ibss_joined) { |
| 1910 | struct ieee80211_sta *sta = NULL; |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1911 | __le32 htprot = 0; |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1912 | |
| 1913 | if (info->dtim_period) |
| 1914 | priv->join_dtim_period = info->dtim_period; |
| 1915 | priv->beacon_int = info->beacon_int; |
| 1916 | |
| 1917 | rcu_read_lock(); |
| 1918 | |
| 1919 | if (info->bssid && !info->ibss_joined) |
| 1920 | sta = ieee80211_find_sta(vif, info->bssid); |
| 1921 | if (sta) { |
| 1922 | priv->ht_info.ht_cap = sta->ht_cap; |
| 1923 | priv->bss_params.operational_rate_set = |
| 1924 | cw1200_rate_mask_to_wsm(priv, |
| 1925 | sta->supp_rates[priv->channel->band]); |
| 1926 | priv->ht_info.channel_type = cfg80211_get_chandef_type(&dev->conf.chandef); |
| 1927 | priv->ht_info.operation_mode = info->ht_operation_mode; |
| 1928 | } else { |
| 1929 | memset(&priv->ht_info, 0, |
| 1930 | sizeof(priv->ht_info)); |
| 1931 | priv->bss_params.operational_rate_set = -1; |
| 1932 | } |
| 1933 | rcu_read_unlock(); |
| 1934 | |
| 1935 | /* Non Greenfield stations present */ |
| 1936 | if (priv->ht_info.operation_mode & |
| 1937 | IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1938 | htprot |= cpu_to_le32(WSM_NON_GREENFIELD_STA_PRESENT); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1939 | |
| 1940 | /* Set HT protection method */ |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1941 | htprot |= cpu_to_le32((priv->ht_info.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION) << 2); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1942 | |
| 1943 | /* TODO: |
| 1944 | * STBC_param.dual_cts |
| 1945 | * STBC_param.LSIG_TXOP_FILL |
| 1946 | */ |
| 1947 | |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1948 | wsm_write_mib(priv, WSM_MIB_ID_SET_HT_PROTECTION, |
Solomon Peachy | 7258416 | 2013-06-20 23:03:12 -0400 | [diff] [blame^] | 1949 | &htprot, sizeof(htprot)); |
Solomon Peachy | a910e4a | 2013-05-24 20:04:38 -0400 | [diff] [blame] | 1950 | |
| 1951 | priv->association_mode.greenfield = |
| 1952 | cw1200_ht_greenfield(&priv->ht_info); |
| 1953 | priv->association_mode.flags = |
| 1954 | WSM_ASSOCIATION_MODE_SNOOP_ASSOC_FRAMES | |
| 1955 | WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE | |
| 1956 | WSM_ASSOCIATION_MODE_USE_HT_MODE | |
| 1957 | WSM_ASSOCIATION_MODE_USE_BASIC_RATE_SET | |
| 1958 | WSM_ASSOCIATION_MODE_USE_MPDU_START_SPACING; |
| 1959 | priv->association_mode.preamble = |
| 1960 | info->use_short_preamble ? |
| 1961 | WSM_JOIN_PREAMBLE_SHORT : |
| 1962 | WSM_JOIN_PREAMBLE_LONG; |
| 1963 | priv->association_mode.basic_rate_set = __cpu_to_le32( |
| 1964 | cw1200_rate_mask_to_wsm(priv, |
| 1965 | info->basic_rates)); |
| 1966 | priv->association_mode.mpdu_start_spacing = |
| 1967 | cw1200_ht_ampdu_density(&priv->ht_info); |
| 1968 | |
| 1969 | cw1200_cqm_bssloss_sm(priv, 0, 0, 0); |
| 1970 | cancel_work_sync(&priv->unjoin_work); |
| 1971 | |
| 1972 | priv->bss_params.beacon_lost_count = priv->cqm_beacon_loss_count; |
| 1973 | priv->bss_params.aid = info->aid; |
| 1974 | |
| 1975 | if (priv->join_dtim_period < 1) |
| 1976 | priv->join_dtim_period = 1; |
| 1977 | |
| 1978 | pr_debug("[STA] DTIM %d, interval: %d\n", |
| 1979 | priv->join_dtim_period, priv->beacon_int); |
| 1980 | pr_debug("[STA] Preamble: %d, Greenfield: %d, Aid: %d, Rates: 0x%.8X, Basic: 0x%.8X\n", |
| 1981 | priv->association_mode.preamble, |
| 1982 | priv->association_mode.greenfield, |
| 1983 | priv->bss_params.aid, |
| 1984 | priv->bss_params.operational_rate_set, |
| 1985 | priv->association_mode.basic_rate_set); |
| 1986 | wsm_set_association_mode(priv, &priv->association_mode); |
| 1987 | |
| 1988 | if (!info->ibss_joined) { |
| 1989 | wsm_keep_alive_period(priv, 30 /* sec */); |
| 1990 | wsm_set_bss_params(priv, &priv->bss_params); |
| 1991 | priv->setbssparams_done = true; |
| 1992 | cw1200_set_beacon_wakeup_period_work(&priv->set_beacon_wakeup_period_work); |
| 1993 | cw1200_set_pm(priv, &priv->powersave_mode); |
| 1994 | } |
| 1995 | if (priv->vif->p2p) { |
| 1996 | pr_debug("[STA] Setting p2p powersave configuration.\n"); |
| 1997 | wsm_set_p2p_ps_modeinfo(priv, |
| 1998 | &priv->p2p_ps_modeinfo); |
| 1999 | } |
| 2000 | if (priv->bt_present) |
| 2001 | cw1200_set_btcoexinfo(priv); |
| 2002 | } else { |
| 2003 | memset(&priv->association_mode, 0, |
| 2004 | sizeof(priv->association_mode)); |
| 2005 | memset(&priv->bss_params, 0, sizeof(priv->bss_params)); |
| 2006 | } |
| 2007 | } |
| 2008 | |
| 2009 | /* ERP Protection */ |
| 2010 | if (changed & (BSS_CHANGED_ASSOC | |
| 2011 | BSS_CHANGED_ERP_CTS_PROT | |
| 2012 | BSS_CHANGED_ERP_PREAMBLE)) { |
| 2013 | u32 prev_erp_info = priv->erp_info; |
| 2014 | if (info->use_cts_prot) |
| 2015 | priv->erp_info |= WLAN_ERP_USE_PROTECTION; |
| 2016 | else if (!(prev_erp_info & WLAN_ERP_NON_ERP_PRESENT)) |
| 2017 | priv->erp_info &= ~WLAN_ERP_USE_PROTECTION; |
| 2018 | |
| 2019 | if (info->use_short_preamble) |
| 2020 | priv->erp_info |= WLAN_ERP_BARKER_PREAMBLE; |
| 2021 | else |
| 2022 | priv->erp_info &= ~WLAN_ERP_BARKER_PREAMBLE; |
| 2023 | |
| 2024 | pr_debug("[STA] ERP Protection: %x\n", priv->erp_info); |
| 2025 | |
| 2026 | if (prev_erp_info != priv->erp_info) |
| 2027 | queue_work(priv->workqueue, &priv->set_cts_work); |
| 2028 | } |
| 2029 | |
| 2030 | /* ERP Slottime */ |
| 2031 | if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_SLOT)) { |
| 2032 | __le32 slot_time = info->use_short_slot ? |
| 2033 | __cpu_to_le32(9) : __cpu_to_le32(20); |
| 2034 | pr_debug("[STA] Slot time: %d us.\n", |
| 2035 | __le32_to_cpu(slot_time)); |
| 2036 | wsm_write_mib(priv, WSM_MIB_ID_DOT11_SLOT_TIME, |
| 2037 | &slot_time, sizeof(slot_time)); |
| 2038 | } |
| 2039 | |
| 2040 | if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_CQM)) { |
| 2041 | struct wsm_rcpi_rssi_threshold threshold = { |
| 2042 | .rollingAverageCount = 8, |
| 2043 | }; |
| 2044 | pr_debug("[CQM] RSSI threshold subscribe: %d +- %d\n", |
| 2045 | info->cqm_rssi_thold, info->cqm_rssi_hyst); |
| 2046 | priv->cqm_rssi_thold = info->cqm_rssi_thold; |
| 2047 | priv->cqm_rssi_hyst = info->cqm_rssi_hyst; |
| 2048 | |
| 2049 | if (info->cqm_rssi_thold || info->cqm_rssi_hyst) { |
| 2050 | /* RSSI subscription enabled */ |
| 2051 | /* TODO: It's not a correct way of setting threshold. |
| 2052 | * Upper and lower must be set equal here and adjusted |
| 2053 | * in callback. However current implementation is much |
| 2054 | * more relaible and stable. |
| 2055 | */ |
| 2056 | |
| 2057 | /* RSSI: signed Q8.0, RCPI: unsigned Q7.1 |
| 2058 | * RSSI = RCPI / 2 - 110 |
| 2059 | */ |
| 2060 | if (priv->cqm_use_rssi) { |
| 2061 | threshold.upperThreshold = |
| 2062 | info->cqm_rssi_thold + info->cqm_rssi_hyst; |
| 2063 | threshold.lowerThreshold = |
| 2064 | info->cqm_rssi_thold; |
| 2065 | threshold.rssiRcpiMode |= WSM_RCPI_RSSI_USE_RSSI; |
| 2066 | } else { |
| 2067 | threshold.upperThreshold = (info->cqm_rssi_thold + info->cqm_rssi_hyst + 110) * 2; |
| 2068 | threshold.lowerThreshold = (info->cqm_rssi_thold + 110) * 2; |
| 2069 | } |
| 2070 | threshold.rssiRcpiMode |= WSM_RCPI_RSSI_THRESHOLD_ENABLE; |
| 2071 | } else { |
| 2072 | /* There is a bug in FW, see sta.c. We have to enable |
| 2073 | * dummy subscription to get correct RSSI values. |
| 2074 | */ |
| 2075 | threshold.rssiRcpiMode |= |
| 2076 | WSM_RCPI_RSSI_THRESHOLD_ENABLE | |
| 2077 | WSM_RCPI_RSSI_DONT_USE_UPPER | |
| 2078 | WSM_RCPI_RSSI_DONT_USE_LOWER; |
| 2079 | if (priv->cqm_use_rssi) |
| 2080 | threshold.rssiRcpiMode |= WSM_RCPI_RSSI_USE_RSSI; |
| 2081 | } |
| 2082 | wsm_set_rcpi_rssi_threshold(priv, &threshold); |
| 2083 | } |
| 2084 | mutex_unlock(&priv->conf_mutex); |
| 2085 | |
| 2086 | if (do_join) { |
| 2087 | wsm_lock_tx(priv); |
| 2088 | cw1200_do_join(priv); /* Will unlock it for us */ |
| 2089 | } |
| 2090 | } |
| 2091 | |
| 2092 | void cw1200_multicast_start_work(struct work_struct *work) |
| 2093 | { |
| 2094 | struct cw1200_common *priv = |
| 2095 | container_of(work, struct cw1200_common, multicast_start_work); |
| 2096 | long tmo = priv->join_dtim_period * |
| 2097 | (priv->beacon_int + 20) * HZ / 1024; |
| 2098 | |
| 2099 | cancel_work_sync(&priv->multicast_stop_work); |
| 2100 | |
| 2101 | if (!priv->aid0_bit_set) { |
| 2102 | wsm_lock_tx(priv); |
| 2103 | cw1200_set_tim_impl(priv, true); |
| 2104 | priv->aid0_bit_set = true; |
| 2105 | mod_timer(&priv->mcast_timeout, jiffies + tmo); |
| 2106 | wsm_unlock_tx(priv); |
| 2107 | } |
| 2108 | } |
| 2109 | |
| 2110 | void cw1200_multicast_stop_work(struct work_struct *work) |
| 2111 | { |
| 2112 | struct cw1200_common *priv = |
| 2113 | container_of(work, struct cw1200_common, multicast_stop_work); |
| 2114 | |
| 2115 | if (priv->aid0_bit_set) { |
| 2116 | del_timer_sync(&priv->mcast_timeout); |
| 2117 | wsm_lock_tx(priv); |
| 2118 | priv->aid0_bit_set = false; |
| 2119 | cw1200_set_tim_impl(priv, false); |
| 2120 | wsm_unlock_tx(priv); |
| 2121 | } |
| 2122 | } |
| 2123 | |
| 2124 | void cw1200_mcast_timeout(unsigned long arg) |
| 2125 | { |
| 2126 | struct cw1200_common *priv = |
| 2127 | (struct cw1200_common *)arg; |
| 2128 | |
| 2129 | wiphy_warn(priv->hw->wiphy, |
| 2130 | "Multicast delivery timeout.\n"); |
| 2131 | spin_lock_bh(&priv->ps_state_lock); |
| 2132 | priv->tx_multicast = priv->aid0_bit_set && |
| 2133 | priv->buffered_multicasts; |
| 2134 | if (priv->tx_multicast) |
| 2135 | cw1200_bh_wakeup(priv); |
| 2136 | spin_unlock_bh(&priv->ps_state_lock); |
| 2137 | } |
| 2138 | |
| 2139 | int cw1200_ampdu_action(struct ieee80211_hw *hw, |
| 2140 | struct ieee80211_vif *vif, |
| 2141 | enum ieee80211_ampdu_mlme_action action, |
| 2142 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, |
| 2143 | u8 buf_size) |
| 2144 | { |
| 2145 | /* Aggregation is implemented fully in firmware, |
| 2146 | * including block ack negotiation. Do not allow |
| 2147 | * mac80211 stack to do anything: it interferes with |
| 2148 | * the firmware. |
| 2149 | */ |
| 2150 | |
| 2151 | /* Note that we still need this function stubbed. */ |
| 2152 | return -ENOTSUPP; |
| 2153 | } |
| 2154 | |
| 2155 | /* ******************************************************************** */ |
| 2156 | /* WSM callback */ |
| 2157 | void cw1200_suspend_resume(struct cw1200_common *priv, |
| 2158 | struct wsm_suspend_resume *arg) |
| 2159 | { |
| 2160 | pr_debug("[AP] %s: %s\n", |
| 2161 | arg->stop ? "stop" : "start", |
| 2162 | arg->multicast ? "broadcast" : "unicast"); |
| 2163 | |
| 2164 | if (arg->multicast) { |
| 2165 | bool cancel_tmo = false; |
| 2166 | spin_lock_bh(&priv->ps_state_lock); |
| 2167 | if (arg->stop) { |
| 2168 | priv->tx_multicast = false; |
| 2169 | } else { |
| 2170 | /* Firmware sends this indication every DTIM if there |
| 2171 | * is a STA in powersave connected. There is no reason |
| 2172 | * to suspend, following wakeup will consume much more |
| 2173 | * power than it could be saved. |
| 2174 | */ |
| 2175 | cw1200_pm_stay_awake(&priv->pm_state, |
| 2176 | priv->join_dtim_period * |
| 2177 | (priv->beacon_int + 20) * HZ / 1024); |
| 2178 | priv->tx_multicast = (priv->aid0_bit_set && |
| 2179 | priv->buffered_multicasts); |
| 2180 | if (priv->tx_multicast) { |
| 2181 | cancel_tmo = true; |
| 2182 | cw1200_bh_wakeup(priv); |
| 2183 | } |
| 2184 | } |
| 2185 | spin_unlock_bh(&priv->ps_state_lock); |
| 2186 | if (cancel_tmo) |
| 2187 | del_timer_sync(&priv->mcast_timeout); |
| 2188 | } else { |
| 2189 | spin_lock_bh(&priv->ps_state_lock); |
| 2190 | cw1200_ps_notify(priv, arg->link_id, arg->stop); |
| 2191 | spin_unlock_bh(&priv->ps_state_lock); |
| 2192 | if (!arg->stop) |
| 2193 | cw1200_bh_wakeup(priv); |
| 2194 | } |
| 2195 | return; |
| 2196 | } |
| 2197 | |
| 2198 | /* ******************************************************************** */ |
| 2199 | /* AP privates */ |
| 2200 | |
| 2201 | static int cw1200_upload_beacon(struct cw1200_common *priv) |
| 2202 | { |
| 2203 | int ret = 0; |
| 2204 | struct ieee80211_mgmt *mgmt; |
| 2205 | struct wsm_template_frame frame = { |
| 2206 | .frame_type = WSM_FRAME_TYPE_BEACON, |
| 2207 | }; |
| 2208 | |
| 2209 | u16 tim_offset; |
| 2210 | u16 tim_len; |
| 2211 | |
| 2212 | if (priv->mode == NL80211_IFTYPE_STATION || |
| 2213 | priv->mode == NL80211_IFTYPE_MONITOR || |
| 2214 | priv->mode == NL80211_IFTYPE_UNSPECIFIED) |
| 2215 | goto done; |
| 2216 | |
| 2217 | if (priv->vif->p2p) |
| 2218 | frame.rate = WSM_TRANSMIT_RATE_6; |
| 2219 | |
| 2220 | frame.skb = ieee80211_beacon_get_tim(priv->hw, priv->vif, |
| 2221 | &tim_offset, &tim_len); |
| 2222 | if (!frame.skb) |
| 2223 | return -ENOMEM; |
| 2224 | |
| 2225 | ret = wsm_set_template_frame(priv, &frame); |
| 2226 | |
| 2227 | if (ret) |
| 2228 | goto done; |
| 2229 | |
| 2230 | /* TODO: Distill probe resp; remove TIM |
| 2231 | * and any other beacon-specific IEs |
| 2232 | */ |
| 2233 | mgmt = (void *)frame.skb->data; |
| 2234 | mgmt->frame_control = |
| 2235 | __cpu_to_le16(IEEE80211_FTYPE_MGMT | |
| 2236 | IEEE80211_STYPE_PROBE_RESP); |
| 2237 | |
| 2238 | frame.frame_type = WSM_FRAME_TYPE_PROBE_RESPONSE; |
| 2239 | if (priv->vif->p2p) { |
| 2240 | ret = wsm_set_probe_responder(priv, true); |
| 2241 | } else { |
| 2242 | ret = wsm_set_template_frame(priv, &frame); |
| 2243 | wsm_set_probe_responder(priv, false); |
| 2244 | } |
| 2245 | |
| 2246 | done: |
| 2247 | dev_kfree_skb(frame.skb); |
| 2248 | |
| 2249 | return ret; |
| 2250 | } |
| 2251 | |
| 2252 | static int cw1200_upload_pspoll(struct cw1200_common *priv) |
| 2253 | { |
| 2254 | int ret = 0; |
| 2255 | struct wsm_template_frame frame = { |
| 2256 | .frame_type = WSM_FRAME_TYPE_PS_POLL, |
| 2257 | .rate = 0xFF, |
| 2258 | }; |
| 2259 | |
| 2260 | |
| 2261 | frame.skb = ieee80211_pspoll_get(priv->hw, priv->vif); |
| 2262 | if (!frame.skb) |
| 2263 | return -ENOMEM; |
| 2264 | |
| 2265 | ret = wsm_set_template_frame(priv, &frame); |
| 2266 | |
| 2267 | dev_kfree_skb(frame.skb); |
| 2268 | |
| 2269 | return ret; |
| 2270 | } |
| 2271 | |
| 2272 | static int cw1200_upload_null(struct cw1200_common *priv) |
| 2273 | { |
| 2274 | int ret = 0; |
| 2275 | struct wsm_template_frame frame = { |
| 2276 | .frame_type = WSM_FRAME_TYPE_NULL, |
| 2277 | .rate = 0xFF, |
| 2278 | }; |
| 2279 | |
| 2280 | frame.skb = ieee80211_nullfunc_get(priv->hw, priv->vif); |
| 2281 | if (!frame.skb) |
| 2282 | return -ENOMEM; |
| 2283 | |
| 2284 | ret = wsm_set_template_frame(priv, &frame); |
| 2285 | |
| 2286 | dev_kfree_skb(frame.skb); |
| 2287 | |
| 2288 | return ret; |
| 2289 | } |
| 2290 | |
| 2291 | static int cw1200_upload_qosnull(struct cw1200_common *priv) |
| 2292 | { |
| 2293 | int ret = 0; |
| 2294 | /* TODO: This needs to be implemented |
| 2295 | |
| 2296 | struct wsm_template_frame frame = { |
| 2297 | .frame_type = WSM_FRAME_TYPE_QOS_NULL, |
| 2298 | .rate = 0xFF, |
| 2299 | }; |
| 2300 | |
| 2301 | frame.skb = ieee80211_qosnullfunc_get(priv->hw, priv->vif); |
| 2302 | if (!frame.skb) |
| 2303 | return -ENOMEM; |
| 2304 | |
| 2305 | ret = wsm_set_template_frame(priv, &frame); |
| 2306 | |
| 2307 | dev_kfree_skb(frame.skb); |
| 2308 | |
| 2309 | */ |
| 2310 | return ret; |
| 2311 | } |
| 2312 | |
| 2313 | static int cw1200_enable_beaconing(struct cw1200_common *priv, |
| 2314 | bool enable) |
| 2315 | { |
| 2316 | struct wsm_beacon_transmit transmit = { |
| 2317 | .enable_beaconing = enable, |
| 2318 | }; |
| 2319 | |
| 2320 | return wsm_beacon_transmit(priv, &transmit); |
| 2321 | } |
| 2322 | |
| 2323 | static int cw1200_start_ap(struct cw1200_common *priv) |
| 2324 | { |
| 2325 | int ret; |
| 2326 | struct ieee80211_bss_conf *conf = &priv->vif->bss_conf; |
| 2327 | struct wsm_start start = { |
| 2328 | .mode = priv->vif->p2p ? |
| 2329 | WSM_START_MODE_P2P_GO : WSM_START_MODE_AP, |
| 2330 | .band = (priv->channel->band == IEEE80211_BAND_5GHZ) ? |
| 2331 | WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G, |
| 2332 | .channel_number = priv->channel->hw_value, |
| 2333 | .beacon_interval = conf->beacon_int, |
| 2334 | .dtim_period = conf->dtim_period, |
| 2335 | .preamble = conf->use_short_preamble ? |
| 2336 | WSM_JOIN_PREAMBLE_SHORT : |
| 2337 | WSM_JOIN_PREAMBLE_LONG, |
| 2338 | .probe_delay = 100, |
| 2339 | .basic_rate_set = cw1200_rate_mask_to_wsm(priv, |
| 2340 | conf->basic_rates), |
| 2341 | }; |
| 2342 | struct wsm_operational_mode mode = { |
| 2343 | .power_mode = cw1200_power_mode, |
| 2344 | .disable_more_flag_usage = true, |
| 2345 | }; |
| 2346 | |
| 2347 | memset(start.ssid, 0, sizeof(start.ssid)); |
| 2348 | if (!conf->hidden_ssid) { |
| 2349 | start.ssid_len = conf->ssid_len; |
| 2350 | memcpy(start.ssid, conf->ssid, start.ssid_len); |
| 2351 | } |
| 2352 | |
| 2353 | priv->beacon_int = conf->beacon_int; |
| 2354 | priv->join_dtim_period = conf->dtim_period; |
| 2355 | |
| 2356 | memset(&priv->link_id_db, 0, sizeof(priv->link_id_db)); |
| 2357 | |
| 2358 | pr_debug("[AP] ch: %d(%d), bcn: %d(%d), brt: 0x%.8X, ssid: %.*s.\n", |
| 2359 | start.channel_number, start.band, |
| 2360 | start.beacon_interval, start.dtim_period, |
| 2361 | start.basic_rate_set, |
| 2362 | start.ssid_len, start.ssid); |
| 2363 | ret = wsm_start(priv, &start); |
| 2364 | if (!ret) |
| 2365 | ret = cw1200_upload_keys(priv); |
| 2366 | if (!ret && priv->vif->p2p) { |
| 2367 | pr_debug("[AP] Setting p2p powersave configuration.\n"); |
| 2368 | wsm_set_p2p_ps_modeinfo(priv, &priv->p2p_ps_modeinfo); |
| 2369 | } |
| 2370 | if (!ret) { |
| 2371 | wsm_set_block_ack_policy(priv, 0, 0); |
| 2372 | priv->join_status = CW1200_JOIN_STATUS_AP; |
| 2373 | cw1200_update_filtering(priv); |
| 2374 | } |
| 2375 | wsm_set_operational_mode(priv, &mode); |
| 2376 | return ret; |
| 2377 | } |
| 2378 | |
| 2379 | static int cw1200_update_beaconing(struct cw1200_common *priv) |
| 2380 | { |
| 2381 | struct ieee80211_bss_conf *conf = &priv->vif->bss_conf; |
| 2382 | struct wsm_reset reset = { |
| 2383 | .link_id = 0, |
| 2384 | .reset_statistics = true, |
| 2385 | }; |
| 2386 | |
| 2387 | if (priv->mode == NL80211_IFTYPE_AP) { |
| 2388 | /* TODO: check if changed channel, band */ |
| 2389 | if (priv->join_status != CW1200_JOIN_STATUS_AP || |
| 2390 | priv->beacon_int != conf->beacon_int) { |
| 2391 | pr_debug("ap restarting\n"); |
| 2392 | wsm_lock_tx(priv); |
| 2393 | if (priv->join_status != CW1200_JOIN_STATUS_PASSIVE) |
| 2394 | wsm_reset(priv, &reset); |
| 2395 | priv->join_status = CW1200_JOIN_STATUS_PASSIVE; |
| 2396 | cw1200_start_ap(priv); |
| 2397 | wsm_unlock_tx(priv); |
| 2398 | } else |
| 2399 | pr_debug("ap started join_status: %d\n", |
| 2400 | priv->join_status); |
| 2401 | } |
| 2402 | return 0; |
| 2403 | } |