2 * Copyright (c) 2010-2011 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 /* HACK Alert: Use 11NG for 2.4, use 11NA for 5 */
24 static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
25 struct ath9k_channel *ichan)
27 if (IS_CHAN_5GHZ(ichan))
33 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
34 enum ath9k_power_mode mode)
38 mutex_lock(&priv->htc_pm_lock);
39 ret = ath9k_hw_setpower(priv->ah, mode);
40 mutex_unlock(&priv->htc_pm_lock);
45 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv)
47 mutex_lock(&priv->htc_pm_lock);
48 if (++priv->ps_usecount != 1)
50 ath9k_hw_setpower(priv->ah, ATH9K_PM_AWAKE);
53 mutex_unlock(&priv->htc_pm_lock);
56 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv)
60 mutex_lock(&priv->htc_pm_lock);
61 if (--priv->ps_usecount != 0)
65 ath9k_hw_setrxabort(priv->ah, true);
66 ath9k_hw_stopdmarecv(priv->ah, &reset);
67 ath9k_hw_setpower(priv->ah, ATH9K_PM_FULL_SLEEP);
68 } else if (priv->ps_enabled) {
69 ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP);
73 mutex_unlock(&priv->htc_pm_lock);
76 void ath9k_ps_work(struct work_struct *work)
78 struct ath9k_htc_priv *priv =
79 container_of(work, struct ath9k_htc_priv,
81 ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
83 /* The chip wakes up after receiving the first beacon
84 while network sleep is enabled. For the driver to
85 be in sync with the hw, set the chip to awake and
86 only then set it to sleep.
88 ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
91 static void ath9k_htc_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
93 struct ath9k_htc_priv *priv = data;
94 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
96 if ((vif->type == NL80211_IFTYPE_AP ||
97 vif->type == NL80211_IFTYPE_MESH_POINT) &&
98 bss_conf->enable_beacon) {
99 priv->reconfig_beacon = true;
100 priv->rearm_ani = true;
103 if (bss_conf->assoc) {
104 priv->rearm_ani = true;
105 priv->reconfig_beacon = true;
109 static void ath9k_htc_vif_reconfig(struct ath9k_htc_priv *priv)
111 priv->rearm_ani = false;
112 priv->reconfig_beacon = false;
114 ieee80211_iterate_active_interfaces_atomic(
115 priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
116 ath9k_htc_vif_iter, priv);
118 ath9k_htc_start_ani(priv);
120 if (priv->reconfig_beacon) {
121 ath9k_htc_ps_wakeup(priv);
122 ath9k_htc_beacon_reconfig(priv);
123 ath9k_htc_ps_restore(priv);
127 static void ath9k_htc_bssid_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
129 struct ath9k_vif_iter_data *iter_data = data;
132 if (iter_data->hw_macaddr != NULL) {
133 for (i = 0; i < ETH_ALEN; i++)
134 iter_data->mask[i] &= ~(iter_data->hw_macaddr[i] ^ mac[i]);
136 iter_data->hw_macaddr = mac;
140 static void ath9k_htc_set_mac_bssid_mask(struct ath9k_htc_priv *priv,
141 struct ieee80211_vif *vif)
143 struct ath_common *common = ath9k_hw_common(priv->ah);
144 struct ath9k_vif_iter_data iter_data;
147 * Pick the MAC address of the first interface as the new hardware
148 * MAC address. The hardware will use it together with the BSSID mask
149 * when matching addresses.
151 iter_data.hw_macaddr = NULL;
152 eth_broadcast_addr(iter_data.mask);
155 ath9k_htc_bssid_iter(&iter_data, vif->addr, vif);
157 /* Get list of all active MAC addresses */
158 ieee80211_iterate_active_interfaces_atomic(
159 priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
160 ath9k_htc_bssid_iter, &iter_data);
162 memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
164 if (iter_data.hw_macaddr)
165 memcpy(common->macaddr, iter_data.hw_macaddr, ETH_ALEN);
167 ath_hw_setbssidmask(common);
170 static void ath9k_htc_set_opmode(struct ath9k_htc_priv *priv)
172 if (priv->num_ibss_vif)
173 priv->ah->opmode = NL80211_IFTYPE_ADHOC;
174 else if (priv->num_ap_vif)
175 priv->ah->opmode = NL80211_IFTYPE_AP;
176 else if (priv->num_mbss_vif)
177 priv->ah->opmode = NL80211_IFTYPE_MESH_POINT;
179 priv->ah->opmode = NL80211_IFTYPE_STATION;
181 ath9k_hw_setopmode(priv->ah);
184 void ath9k_htc_reset(struct ath9k_htc_priv *priv)
186 struct ath_hw *ah = priv->ah;
187 struct ath_common *common = ath9k_hw_common(ah);
188 struct ieee80211_channel *channel = priv->hw->conf.chandef.chan;
189 struct ath9k_hw_cal_data *caldata = NULL;
190 enum htc_phymode mode;
195 mutex_lock(&priv->mutex);
196 ath9k_htc_ps_wakeup(priv);
198 ath9k_htc_stop_ani(priv);
199 ieee80211_stop_queues(priv->hw);
201 del_timer_sync(&priv->tx.cleanup_timer);
202 ath9k_htc_tx_drain(priv);
204 WMI_CMD(WMI_DISABLE_INTR_CMDID);
205 WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
206 WMI_CMD(WMI_STOP_RECV_CMDID);
208 ath9k_wmi_event_drain(priv);
210 caldata = &priv->caldata;
211 ret = ath9k_hw_reset(ah, ah->curchan, caldata, false);
214 "Unable to reset device (%u Mhz) reset status %d\n",
215 channel->center_freq, ret);
218 ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
221 WMI_CMD(WMI_START_RECV_CMDID);
222 ath9k_host_rx_init(priv);
224 mode = ath9k_htc_get_curmode(priv, ah->curchan);
225 htc_mode = cpu_to_be16(mode);
226 WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
228 WMI_CMD(WMI_ENABLE_INTR_CMDID);
229 htc_start(priv->htc);
230 ath9k_htc_vif_reconfig(priv);
231 ieee80211_wake_queues(priv->hw);
233 mod_timer(&priv->tx.cleanup_timer,
234 jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
236 ath9k_htc_ps_restore(priv);
237 mutex_unlock(&priv->mutex);
240 static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
241 struct ieee80211_hw *hw,
242 struct ath9k_channel *hchan)
244 struct ath_hw *ah = priv->ah;
245 struct ath_common *common = ath9k_hw_common(ah);
246 struct ieee80211_conf *conf = &common->hw->conf;
248 struct ieee80211_channel *channel = hw->conf.chandef.chan;
249 struct ath9k_hw_cal_data *caldata = NULL;
250 enum htc_phymode mode;
255 if (test_bit(ATH_OP_INVALID, &common->op_flags))
258 fastcc = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
260 ath9k_htc_ps_wakeup(priv);
262 ath9k_htc_stop_ani(priv);
263 del_timer_sync(&priv->tx.cleanup_timer);
264 ath9k_htc_tx_drain(priv);
266 WMI_CMD(WMI_DISABLE_INTR_CMDID);
267 WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
268 WMI_CMD(WMI_STOP_RECV_CMDID);
270 ath9k_wmi_event_drain(priv);
272 ath_dbg(common, CONFIG,
273 "(%u MHz) -> (%u MHz), HT: %d, HT40: %d fastcc: %d\n",
274 priv->ah->curchan->channel,
275 channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf),
279 caldata = &priv->caldata;
281 ret = ath9k_hw_reset(ah, hchan, caldata, fastcc);
284 "Unable to reset channel (%u Mhz) reset status %d\n",
285 channel->center_freq, ret);
289 ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
292 WMI_CMD(WMI_START_RECV_CMDID);
296 ath9k_host_rx_init(priv);
298 mode = ath9k_htc_get_curmode(priv, hchan);
299 htc_mode = cpu_to_be16(mode);
300 WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
304 WMI_CMD(WMI_ENABLE_INTR_CMDID);
308 htc_start(priv->htc);
310 if (!test_bit(ATH_OP_SCANNING, &common->op_flags) &&
311 !(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
312 ath9k_htc_vif_reconfig(priv);
314 mod_timer(&priv->tx.cleanup_timer,
315 jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
317 /* perform spectral scan if requested. */
318 if (test_bit(ATH_OP_SCANNING, &common->op_flags) &&
319 priv->spec_priv.spectral_mode == SPECTRAL_CHANSCAN)
320 ath9k_cmn_spectral_scan_trigger(common, &priv->spec_priv);
322 ath9k_htc_ps_restore(priv);
327 * Monitor mode handling is a tad complicated because the firmware requires
328 * an interface to be created exclusively, while mac80211 doesn't associate
329 * an interface with the mode.
331 * So, for now, only one monitor interface can be configured.
333 static void __ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
335 struct ath_common *common = ath9k_hw_common(priv->ah);
336 struct ath9k_htc_target_vif hvif;
340 memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
341 memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
342 hvif.index = priv->mon_vif_idx;
343 WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
345 ath_err(common, "Unable to remove monitor interface at idx: %d\n",
350 priv->vif_slot &= ~(1 << priv->mon_vif_idx);
353 static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv)
355 struct ath_common *common = ath9k_hw_common(priv->ah);
356 struct ath9k_htc_target_vif hvif;
357 struct ath9k_htc_target_sta tsta;
358 int ret = 0, sta_idx;
361 if ((priv->nvifs >= ATH9K_HTC_MAX_VIF) ||
362 (priv->nstations >= ATH9K_HTC_MAX_STA)) {
367 sta_idx = ffz(priv->sta_slot);
368 if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA)) {
376 memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
377 memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
379 hvif.opmode = HTC_M_MONITOR;
380 hvif.index = ffz(priv->vif_slot);
382 WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
387 * Assign the monitor interface index as a special case here.
388 * This is needed when the interface is brought down.
390 priv->mon_vif_idx = hvif.index;
391 priv->vif_slot |= (1 << hvif.index);
394 * Set the hardware mode to monitor only if there are no
398 priv->ah->opmode = NL80211_IFTYPE_MONITOR;
403 * Associate a station with the interface for packet injection.
405 memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
407 memcpy(&tsta.macaddr, common->macaddr, ETH_ALEN);
410 tsta.sta_index = sta_idx;
411 tsta.vif_index = hvif.index;
412 tsta.maxampdu = cpu_to_be16(0xffff);
414 WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
416 ath_err(common, "Unable to add station entry for monitor mode\n");
420 priv->sta_slot |= (1 << sta_idx);
422 priv->vif_sta_pos[priv->mon_vif_idx] = sta_idx;
423 priv->ah->is_monitoring = true;
425 ath_dbg(common, CONFIG,
426 "Attached a monitor interface at idx: %d, sta idx: %d\n",
427 priv->mon_vif_idx, sta_idx);
433 * Remove the interface from the target.
435 __ath9k_htc_remove_monitor_interface(priv);
437 ath_dbg(common, FATAL, "Unable to attach a monitor interface\n");
442 static int ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
444 struct ath_common *common = ath9k_hw_common(priv->ah);
448 __ath9k_htc_remove_monitor_interface(priv);
450 sta_idx = priv->vif_sta_pos[priv->mon_vif_idx];
452 WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
454 ath_err(common, "Unable to remove station entry for monitor mode\n");
458 priv->sta_slot &= ~(1 << sta_idx);
460 priv->ah->is_monitoring = false;
462 ath_dbg(common, CONFIG,
463 "Removed a monitor interface at idx: %d, sta idx: %d\n",
464 priv->mon_vif_idx, sta_idx);
469 static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
470 struct ieee80211_vif *vif,
471 struct ieee80211_sta *sta)
473 struct ath_common *common = ath9k_hw_common(priv->ah);
474 struct ath9k_htc_target_sta tsta;
475 struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
476 struct ath9k_htc_sta *ista;
481 if (priv->nstations >= ATH9K_HTC_MAX_STA)
484 sta_idx = ffz(priv->sta_slot);
485 if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA))
488 memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
491 ista = (struct ath9k_htc_sta *) sta->drv_priv;
492 memcpy(&tsta.macaddr, sta->addr, ETH_ALEN);
493 memcpy(&tsta.bssid, common->curbssid, ETH_ALEN);
494 ista->index = sta_idx;
496 maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
497 sta->ht_cap.ampdu_factor);
498 tsta.maxampdu = cpu_to_be16(maxampdu);
500 memcpy(&tsta.macaddr, vif->addr, ETH_ALEN);
502 tsta.maxampdu = cpu_to_be16(0xffff);
505 tsta.sta_index = sta_idx;
506 tsta.vif_index = avp->index;
508 WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
512 "Unable to add station entry for: %pM\n",
518 ath_dbg(common, CONFIG,
519 "Added a station entry for: %pM (idx: %d)\n",
520 sta->addr, tsta.sta_index);
522 ath_dbg(common, CONFIG,
523 "Added a station entry for VIF %d (idx: %d)\n",
524 avp->index, tsta.sta_index);
527 priv->sta_slot |= (1 << sta_idx);
530 priv->vif_sta_pos[avp->index] = sta_idx;
535 static int ath9k_htc_remove_station(struct ath9k_htc_priv *priv,
536 struct ieee80211_vif *vif,
537 struct ieee80211_sta *sta)
539 struct ath_common *common = ath9k_hw_common(priv->ah);
540 struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
541 struct ath9k_htc_sta *ista;
546 ista = (struct ath9k_htc_sta *) sta->drv_priv;
547 sta_idx = ista->index;
549 sta_idx = priv->vif_sta_pos[avp->index];
552 WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
556 "Unable to remove station entry for: %pM\n",
562 ath_dbg(common, CONFIG,
563 "Removed a station entry for: %pM (idx: %d)\n",
566 ath_dbg(common, CONFIG,
567 "Removed a station entry for VIF %d (idx: %d)\n",
568 avp->index, sta_idx);
571 priv->sta_slot &= ~(1 << sta_idx);
577 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
580 struct ath9k_htc_cap_target tcap;
584 memset(&tcap, 0, sizeof(struct ath9k_htc_cap_target));
586 tcap.ampdu_limit = cpu_to_be32(0xffff);
587 tcap.ampdu_subframes = 0xff;
588 tcap.enable_coex = enable_coex;
589 tcap.tx_chainmask = priv->ah->caps.tx_chainmask;
591 WMI_CMD_BUF(WMI_TARGET_IC_UPDATE_CMDID, &tcap);
596 static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv,
597 struct ieee80211_sta *sta,
598 struct ath9k_htc_target_rate *trate)
600 struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
601 struct ieee80211_supported_band *sband;
605 sband = priv->hw->wiphy->bands[priv->hw->conf.chandef.chan->band];
607 for (i = 0, j = 0; i < sband->n_bitrates; i++) {
608 if (sta->supp_rates[sband->band] & BIT(i)) {
609 trate->rates.legacy_rates.rs_rates[j]
610 = (sband->bitrates[i].bitrate * 2) / 10;
614 trate->rates.legacy_rates.rs_nrates = j;
616 if (sta->ht_cap.ht_supported) {
617 for (i = 0, j = 0; i < 77; i++) {
618 if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8)))
619 trate->rates.ht_rates.rs_rates[j++] = i;
620 if (j == ATH_HTC_RATE_MAX)
623 trate->rates.ht_rates.rs_nrates = j;
625 caps = WLAN_RC_HT_FLAG;
626 if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC)
627 caps |= ATH_RC_TX_STBC_FLAG;
628 if (sta->ht_cap.mcs.rx_mask[1])
629 caps |= WLAN_RC_DS_FLAG;
630 if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
631 (conf_is_ht40(&priv->hw->conf)))
632 caps |= WLAN_RC_40_FLAG;
633 if (conf_is_ht40(&priv->hw->conf) &&
634 (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
635 caps |= WLAN_RC_SGI_FLAG;
636 else if (conf_is_ht20(&priv->hw->conf) &&
637 (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20))
638 caps |= WLAN_RC_SGI_FLAG;
641 trate->sta_index = ista->index;
643 trate->capflags = cpu_to_be32(caps);
646 static int ath9k_htc_send_rate_cmd(struct ath9k_htc_priv *priv,
647 struct ath9k_htc_target_rate *trate)
649 struct ath_common *common = ath9k_hw_common(priv->ah);
653 WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, trate);
656 "Unable to initialize Rate information on target\n");
662 static void ath9k_htc_init_rate(struct ath9k_htc_priv *priv,
663 struct ieee80211_sta *sta)
665 struct ath_common *common = ath9k_hw_common(priv->ah);
666 struct ath9k_htc_target_rate trate;
669 memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
670 ath9k_htc_setup_rate(priv, sta, &trate);
671 ret = ath9k_htc_send_rate_cmd(priv, &trate);
673 ath_dbg(common, CONFIG,
674 "Updated target sta: %pM, rate caps: 0x%X\n",
675 sta->addr, be32_to_cpu(trate.capflags));
678 static void ath9k_htc_update_rate(struct ath9k_htc_priv *priv,
679 struct ieee80211_vif *vif,
680 struct ieee80211_bss_conf *bss_conf)
682 struct ath_common *common = ath9k_hw_common(priv->ah);
683 struct ath9k_htc_target_rate trate;
684 struct ieee80211_sta *sta;
687 memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
690 sta = ieee80211_find_sta(vif, bss_conf->bssid);
695 ath9k_htc_setup_rate(priv, sta, &trate);
698 ret = ath9k_htc_send_rate_cmd(priv, &trate);
700 ath_dbg(common, CONFIG,
701 "Updated target sta: %pM, rate caps: 0x%X\n",
702 bss_conf->bssid, be32_to_cpu(trate.capflags));
705 static int ath9k_htc_tx_aggr_oper(struct ath9k_htc_priv *priv,
706 struct ieee80211_vif *vif,
707 struct ieee80211_sta *sta,
708 enum ieee80211_ampdu_mlme_action action,
711 struct ath_common *common = ath9k_hw_common(priv->ah);
712 struct ath9k_htc_target_aggr aggr;
713 struct ath9k_htc_sta *ista;
717 if (tid >= ATH9K_HTC_MAX_TID)
720 memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr));
721 ista = (struct ath9k_htc_sta *) sta->drv_priv;
723 aggr.sta_index = ista->index;
724 aggr.tidno = tid & 0xf;
725 aggr.aggr_enable = (action == IEEE80211_AMPDU_TX_START) ? true : false;
727 WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr);
729 ath_dbg(common, CONFIG,
730 "Unable to %s TX aggregation for (%pM, %d)\n",
731 (aggr.aggr_enable) ? "start" : "stop", sta->addr, tid);
733 ath_dbg(common, CONFIG,
734 "%s TX aggregation for (%pM, %d)\n",
735 (aggr.aggr_enable) ? "Starting" : "Stopping",
738 spin_lock_bh(&priv->tx.tx_lock);
739 ista->tid_state[tid] = (aggr.aggr_enable && !ret) ? AGGR_START : AGGR_STOP;
740 spin_unlock_bh(&priv->tx.tx_lock);
749 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv)
751 struct ath_common *common = ath9k_hw_common(priv->ah);
752 unsigned long timestamp = jiffies_to_msecs(jiffies);
754 common->ani.longcal_timer = timestamp;
755 common->ani.shortcal_timer = timestamp;
756 common->ani.checkani_timer = timestamp;
758 set_bit(ATH_OP_ANI_RUN, &common->op_flags);
760 ieee80211_queue_delayed_work(common->hw, &priv->ani_work,
761 msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
764 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv)
766 struct ath_common *common = ath9k_hw_common(priv->ah);
767 cancel_delayed_work_sync(&priv->ani_work);
768 clear_bit(ATH_OP_ANI_RUN, &common->op_flags);
771 void ath9k_htc_ani_work(struct work_struct *work)
773 struct ath9k_htc_priv *priv =
774 container_of(work, struct ath9k_htc_priv, ani_work.work);
775 struct ath_hw *ah = priv->ah;
776 struct ath_common *common = ath9k_hw_common(ah);
777 bool longcal = false;
778 bool shortcal = false;
779 bool aniflag = false;
780 unsigned int timestamp = jiffies_to_msecs(jiffies);
781 u32 cal_interval, short_cal_interval;
783 short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ?
784 ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL;
786 /* Only calibrate if awake */
787 if (ah->power_mode != ATH9K_PM_AWAKE)
790 /* Long calibration runs independently of short calibration. */
791 if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
793 ath_dbg(common, ANI, "longcal @%lu\n", jiffies);
794 common->ani.longcal_timer = timestamp;
798 * Short calibration applies only while caldone
799 * is false or -ETIMEDOUT
801 if (common->ani.caldone <= 0) {
802 if ((timestamp - common->ani.shortcal_timer) >=
803 short_cal_interval) {
805 ath_dbg(common, ANI, "shortcal @%lu\n", jiffies);
806 common->ani.shortcal_timer = timestamp;
807 common->ani.resetcal_timer = timestamp;
810 if ((timestamp - common->ani.resetcal_timer) >=
811 ATH_RESTART_CALINTERVAL) {
812 common->ani.caldone = ath9k_hw_reset_calvalid(ah);
813 if (common->ani.caldone)
814 common->ani.resetcal_timer = timestamp;
818 /* Verify whether we must check ANI */
819 if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
821 common->ani.checkani_timer = timestamp;
824 /* Skip all processing if there's nothing to do. */
825 if (longcal || shortcal || aniflag) {
827 ath9k_htc_ps_wakeup(priv);
829 /* Call ANI routine if necessary */
831 ath9k_hw_ani_monitor(ah, ah->curchan);
833 /* Perform calibration if necessary */
834 if (longcal || shortcal)
835 common->ani.caldone =
836 ath9k_hw_calibrate(ah, ah->curchan,
837 ah->rxchainmask, longcal);
839 ath9k_htc_ps_restore(priv);
844 * Set timer interval based on previous results.
845 * The interval must be the shortest necessary to satisfy ANI,
846 * short calibration and long calibration.
848 cal_interval = ATH_LONG_CALINTERVAL;
849 cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
851 * Short calibration applies only while caldone
852 * is false or -ETIMEDOUT
854 if (common->ani.caldone <= 0)
855 cal_interval = min(cal_interval, (u32)short_cal_interval);
857 ieee80211_queue_delayed_work(common->hw, &priv->ani_work,
858 msecs_to_jiffies(cal_interval));
861 /**********************/
862 /* mac80211 Callbacks */
863 /**********************/
865 static void ath9k_htc_tx(struct ieee80211_hw *hw,
866 struct ieee80211_tx_control *control,
869 struct ieee80211_hdr *hdr;
870 struct ath9k_htc_priv *priv = hw->priv;
871 struct ath_common *common = ath9k_hw_common(priv->ah);
872 int padpos, padsize, ret, slot;
874 hdr = (struct ieee80211_hdr *) skb->data;
876 /* Add the padding after the header if this is not already done */
877 padpos = ieee80211_hdrlen(hdr->frame_control);
878 padsize = padpos & 3;
879 if (padsize && skb->len > padpos) {
880 if (skb_headroom(skb) < padsize) {
881 ath_dbg(common, XMIT, "No room for padding\n");
884 skb_push(skb, padsize);
885 memmove(skb->data, skb->data + padsize, padpos);
888 slot = ath9k_htc_tx_get_slot(priv);
890 ath_dbg(common, XMIT, "No free TX slot\n");
894 ret = ath9k_htc_tx_start(priv, control->sta, skb, slot, false);
896 ath_dbg(common, XMIT, "Tx failed\n");
900 ath9k_htc_check_stop_queues(priv);
905 ath9k_htc_tx_clear_slot(priv, slot);
907 dev_kfree_skb_any(skb);
910 static int ath9k_htc_start(struct ieee80211_hw *hw)
912 struct ath9k_htc_priv *priv = hw->priv;
913 struct ath_hw *ah = priv->ah;
914 struct ath_common *common = ath9k_hw_common(ah);
915 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
916 struct ath9k_channel *init_channel;
918 enum htc_phymode mode;
922 mutex_lock(&priv->mutex);
924 ath_dbg(common, CONFIG,
925 "Starting driver with initial channel: %d MHz\n",
926 curchan->center_freq);
928 /* Ensure that HW is awake before flushing RX */
929 ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
930 WMI_CMD(WMI_FLUSH_RECV_CMDID);
932 /* setup initial channel */
933 init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
935 ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
938 "Unable to reset hardware; reset status %d (freq %u MHz)\n",
939 ret, curchan->center_freq);
940 mutex_unlock(&priv->mutex);
944 ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
947 mode = ath9k_htc_get_curmode(priv, init_channel);
948 htc_mode = cpu_to_be16(mode);
949 WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
950 WMI_CMD(WMI_ATH_INIT_CMDID);
951 WMI_CMD(WMI_START_RECV_CMDID);
953 ath9k_host_rx_init(priv);
955 ret = ath9k_htc_update_cap_target(priv, 0);
957 ath_dbg(common, CONFIG,
958 "Failed to update capability in target\n");
960 clear_bit(ATH_OP_INVALID, &common->op_flags);
961 htc_start(priv->htc);
963 spin_lock_bh(&priv->tx.tx_lock);
964 priv->tx.flags &= ~ATH9K_HTC_OP_TX_QUEUES_STOP;
965 spin_unlock_bh(&priv->tx.tx_lock);
967 ieee80211_wake_queues(hw);
969 mod_timer(&priv->tx.cleanup_timer,
970 jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
972 ath9k_htc_start_btcoex(priv);
974 mutex_unlock(&priv->mutex);
979 static void ath9k_htc_stop(struct ieee80211_hw *hw)
981 struct ath9k_htc_priv *priv = hw->priv;
982 struct ath_hw *ah = priv->ah;
983 struct ath_common *common = ath9k_hw_common(ah);
984 int ret __attribute__ ((unused));
987 mutex_lock(&priv->mutex);
989 if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
990 ath_dbg(common, ANY, "Device not present\n");
991 mutex_unlock(&priv->mutex);
995 ath9k_htc_ps_wakeup(priv);
997 WMI_CMD(WMI_DISABLE_INTR_CMDID);
998 WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
999 WMI_CMD(WMI_STOP_RECV_CMDID);
1001 tasklet_kill(&priv->rx_tasklet);
1003 del_timer_sync(&priv->tx.cleanup_timer);
1004 ath9k_htc_tx_drain(priv);
1005 ath9k_wmi_event_drain(priv);
1007 mutex_unlock(&priv->mutex);
1009 /* Cancel all the running timers/work .. */
1010 cancel_work_sync(&priv->fatal_work);
1011 cancel_work_sync(&priv->ps_work);
1013 #ifdef CONFIG_MAC80211_LEDS
1014 cancel_work_sync(&priv->led_work);
1016 ath9k_htc_stop_ani(priv);
1018 mutex_lock(&priv->mutex);
1020 ath9k_htc_stop_btcoex(priv);
1022 /* Remove a monitor interface if it's present. */
1023 if (priv->ah->is_monitoring)
1024 ath9k_htc_remove_monitor_interface(priv);
1026 ath9k_hw_phy_disable(ah);
1027 ath9k_hw_disable(ah);
1028 ath9k_htc_ps_restore(priv);
1029 ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
1031 set_bit(ATH_OP_INVALID, &common->op_flags);
1033 ath_dbg(common, CONFIG, "Driver halt\n");
1034 mutex_unlock(&priv->mutex);
1037 static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
1038 struct ieee80211_vif *vif)
1040 struct ath9k_htc_priv *priv = hw->priv;
1041 struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1042 struct ath_common *common = ath9k_hw_common(priv->ah);
1043 struct ath9k_htc_target_vif hvif;
1047 mutex_lock(&priv->mutex);
1049 ath9k_htc_ps_wakeup(priv);
1050 memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
1051 memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
1053 switch (vif->type) {
1054 case NL80211_IFTYPE_STATION:
1055 hvif.opmode = HTC_M_STA;
1057 case NL80211_IFTYPE_ADHOC:
1058 hvif.opmode = HTC_M_IBSS;
1060 case NL80211_IFTYPE_AP:
1061 hvif.opmode = HTC_M_HOSTAP;
1063 case NL80211_IFTYPE_MESH_POINT:
1064 hvif.opmode = HTC_M_WDS; /* close enough */
1068 "Interface type %d not yet supported\n", vif->type);
1073 /* Index starts from zero on the target */
1074 avp->index = hvif.index = ffz(priv->vif_slot);
1075 hvif.rtsthreshold = cpu_to_be16(2304);
1076 WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
1081 * We need a node in target to tx mgmt frames
1082 * before association.
1084 ret = ath9k_htc_add_station(priv, vif, NULL);
1086 WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
1090 ath9k_htc_set_mac_bssid_mask(priv, vif);
1092 priv->vif_slot |= (1 << avp->index);
1095 INC_VIF(priv, vif->type);
1097 if ((vif->type == NL80211_IFTYPE_AP) ||
1098 (vif->type == NL80211_IFTYPE_MESH_POINT) ||
1099 (vif->type == NL80211_IFTYPE_ADHOC))
1100 ath9k_htc_assign_bslot(priv, vif);
1102 ath9k_htc_set_opmode(priv);
1104 if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
1105 !test_bit(ATH_OP_ANI_RUN, &common->op_flags)) {
1106 ath9k_hw_set_tsfadjust(priv->ah, true);
1107 ath9k_htc_start_ani(priv);
1110 ath_dbg(common, CONFIG, "Attach a VIF of type: %d at idx: %d\n",
1111 vif->type, avp->index);
1114 ath9k_htc_ps_restore(priv);
1115 mutex_unlock(&priv->mutex);
1120 static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
1121 struct ieee80211_vif *vif)
1123 struct ath9k_htc_priv *priv = hw->priv;
1124 struct ath_common *common = ath9k_hw_common(priv->ah);
1125 struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1126 struct ath9k_htc_target_vif hvif;
1130 mutex_lock(&priv->mutex);
1131 ath9k_htc_ps_wakeup(priv);
1133 memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
1134 memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
1135 hvif.index = avp->index;
1136 WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
1138 ath_err(common, "Unable to remove interface at idx: %d\n",
1142 priv->vif_slot &= ~(1 << avp->index);
1144 if (priv->csa_vif == vif)
1145 priv->csa_vif = NULL;
1147 ath9k_htc_remove_station(priv, vif, NULL);
1149 DEC_VIF(priv, vif->type);
1151 if ((vif->type == NL80211_IFTYPE_AP) ||
1152 vif->type == NL80211_IFTYPE_MESH_POINT ||
1153 (vif->type == NL80211_IFTYPE_ADHOC))
1154 ath9k_htc_remove_bslot(priv, vif);
1156 ath9k_htc_set_opmode(priv);
1158 ath9k_htc_set_mac_bssid_mask(priv, vif);
1161 * Stop ANI only if there are no associated station interfaces.
1163 if ((vif->type == NL80211_IFTYPE_AP) && (priv->num_ap_vif == 0)) {
1164 priv->rearm_ani = false;
1165 ieee80211_iterate_active_interfaces_atomic(
1166 priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1167 ath9k_htc_vif_iter, priv);
1168 if (!priv->rearm_ani)
1169 ath9k_htc_stop_ani(priv);
1172 ath_dbg(common, CONFIG, "Detach Interface at idx: %d\n", avp->index);
1174 ath9k_htc_ps_restore(priv);
1175 mutex_unlock(&priv->mutex);
1178 static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
1180 struct ath9k_htc_priv *priv = hw->priv;
1181 struct ath_common *common = ath9k_hw_common(priv->ah);
1182 struct ieee80211_conf *conf = &hw->conf;
1183 bool chip_reset = false;
1186 mutex_lock(&priv->mutex);
1187 ath9k_htc_ps_wakeup(priv);
1189 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1190 mutex_lock(&priv->htc_pm_lock);
1192 priv->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1196 mutex_unlock(&priv->htc_pm_lock);
1200 * Monitor interface should be added before
1201 * IEEE80211_CONF_CHANGE_CHANNEL is handled.
1203 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1204 if ((conf->flags & IEEE80211_CONF_MONITOR) &&
1205 !priv->ah->is_monitoring)
1206 ath9k_htc_add_monitor_interface(priv);
1207 else if (priv->ah->is_monitoring)
1208 ath9k_htc_remove_monitor_interface(priv);
1211 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || chip_reset) {
1212 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
1213 int pos = curchan->hw_value;
1215 ath_dbg(common, CONFIG, "Set channel: %d MHz\n",
1216 curchan->center_freq);
1218 ath9k_cmn_get_channel(hw, priv->ah, &hw->conf.chandef);
1219 if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
1220 ath_err(common, "Unable to set channel\n");
1227 if (changed & IEEE80211_CONF_CHANGE_PS) {
1228 if (conf->flags & IEEE80211_CONF_PS) {
1229 ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
1230 priv->ps_enabled = true;
1232 priv->ps_enabled = false;
1233 cancel_work_sync(&priv->ps_work);
1234 ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
1238 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1239 priv->txpowlimit = 2 * conf->power_level;
1240 ath9k_cmn_update_txpow(priv->ah, priv->curtxpow,
1241 priv->txpowlimit, &priv->curtxpow);
1245 ath9k_htc_ps_restore(priv);
1246 mutex_unlock(&priv->mutex);
1250 #define SUPPORTED_FILTERS \
1255 FIF_BCN_PRBRESP_PROMISC | \
1259 static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
1260 unsigned int changed_flags,
1261 unsigned int *total_flags,
1264 struct ath9k_htc_priv *priv = hw->priv;
1265 struct ath_common *common = ath9k_hw_common(priv->ah);
1268 mutex_lock(&priv->mutex);
1269 changed_flags &= SUPPORTED_FILTERS;
1270 *total_flags &= SUPPORTED_FILTERS;
1272 if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
1273 ath_dbg(ath9k_hw_common(priv->ah), ANY,
1274 "Unable to configure filter on invalid state\n");
1275 mutex_unlock(&priv->mutex);
1278 ath9k_htc_ps_wakeup(priv);
1280 priv->rxfilter = *total_flags;
1281 rfilt = ath9k_htc_calcrxfilter(priv);
1282 ath9k_hw_setrxfilter(priv->ah, rfilt);
1284 ath_dbg(ath9k_hw_common(priv->ah), CONFIG, "Set HW RX filter: 0x%x\n",
1287 ath9k_htc_ps_restore(priv);
1288 mutex_unlock(&priv->mutex);
1291 static void ath9k_htc_sta_rc_update_work(struct work_struct *work)
1293 struct ath9k_htc_sta *ista =
1294 container_of(work, struct ath9k_htc_sta, rc_update_work);
1295 struct ieee80211_sta *sta =
1296 container_of((void *)ista, struct ieee80211_sta, drv_priv);
1297 struct ath9k_htc_priv *priv = ista->htc_priv;
1298 struct ath_common *common = ath9k_hw_common(priv->ah);
1299 struct ath9k_htc_target_rate trate;
1301 mutex_lock(&priv->mutex);
1302 ath9k_htc_ps_wakeup(priv);
1304 memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
1305 ath9k_htc_setup_rate(priv, sta, &trate);
1306 if (!ath9k_htc_send_rate_cmd(priv, &trate))
1307 ath_dbg(common, CONFIG,
1308 "Supported rates for sta: %pM updated, rate caps: 0x%X\n",
1309 sta->addr, be32_to_cpu(trate.capflags));
1311 ath_dbg(common, CONFIG,
1312 "Unable to update supported rates for sta: %pM\n",
1315 ath9k_htc_ps_restore(priv);
1316 mutex_unlock(&priv->mutex);
1319 static int ath9k_htc_sta_add(struct ieee80211_hw *hw,
1320 struct ieee80211_vif *vif,
1321 struct ieee80211_sta *sta)
1323 struct ath9k_htc_priv *priv = hw->priv;
1324 struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
1327 mutex_lock(&priv->mutex);
1328 ath9k_htc_ps_wakeup(priv);
1329 ret = ath9k_htc_add_station(priv, vif, sta);
1331 INIT_WORK(&ista->rc_update_work, ath9k_htc_sta_rc_update_work);
1332 ista->htc_priv = priv;
1333 ath9k_htc_init_rate(priv, sta);
1335 ath9k_htc_ps_restore(priv);
1336 mutex_unlock(&priv->mutex);
1341 static int ath9k_htc_sta_remove(struct ieee80211_hw *hw,
1342 struct ieee80211_vif *vif,
1343 struct ieee80211_sta *sta)
1345 struct ath9k_htc_priv *priv = hw->priv;
1346 struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
1349 cancel_work_sync(&ista->rc_update_work);
1351 mutex_lock(&priv->mutex);
1352 ath9k_htc_ps_wakeup(priv);
1353 htc_sta_drain(priv->htc, ista->index);
1354 ret = ath9k_htc_remove_station(priv, vif, sta);
1355 ath9k_htc_ps_restore(priv);
1356 mutex_unlock(&priv->mutex);
1361 static void ath9k_htc_sta_rc_update(struct ieee80211_hw *hw,
1362 struct ieee80211_vif *vif,
1363 struct ieee80211_sta *sta, u32 changed)
1365 struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
1367 if (!(changed & IEEE80211_RC_SUPP_RATES_CHANGED))
1370 schedule_work(&ista->rc_update_work);
1373 static int ath9k_htc_conf_tx(struct ieee80211_hw *hw,
1374 struct ieee80211_vif *vif, u16 queue,
1375 const struct ieee80211_tx_queue_params *params)
1377 struct ath9k_htc_priv *priv = hw->priv;
1378 struct ath_common *common = ath9k_hw_common(priv->ah);
1379 struct ath9k_tx_queue_info qi;
1382 if (queue >= IEEE80211_NUM_ACS)
1385 mutex_lock(&priv->mutex);
1386 ath9k_htc_ps_wakeup(priv);
1388 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1390 qi.tqi_aifs = params->aifs;
1391 qi.tqi_cwmin = params->cw_min;
1392 qi.tqi_cwmax = params->cw_max;
1393 qi.tqi_burstTime = params->txop * 32;
1395 qnum = get_hw_qnum(queue, priv->hwq_map);
1397 ath_dbg(common, CONFIG,
1398 "Configure tx [queue/hwq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1399 queue, qnum, params->aifs, params->cw_min,
1400 params->cw_max, params->txop);
1402 ret = ath_htc_txq_update(priv, qnum, &qi);
1404 ath_err(common, "TXQ Update failed\n");
1408 if ((priv->ah->opmode == NL80211_IFTYPE_ADHOC) &&
1409 (qnum == priv->hwq_map[IEEE80211_AC_BE]))
1410 ath9k_htc_beaconq_config(priv);
1412 ath9k_htc_ps_restore(priv);
1413 mutex_unlock(&priv->mutex);
1418 static int ath9k_htc_set_key(struct ieee80211_hw *hw,
1419 enum set_key_cmd cmd,
1420 struct ieee80211_vif *vif,
1421 struct ieee80211_sta *sta,
1422 struct ieee80211_key_conf *key)
1424 struct ath9k_htc_priv *priv = hw->priv;
1425 struct ath_common *common = ath9k_hw_common(priv->ah);
1428 if (htc_modparam_nohwcrypt)
1431 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1432 vif->type == NL80211_IFTYPE_MESH_POINT) &&
1433 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1434 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1435 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1437 * For now, disable hw crypto for the RSN IBSS group keys. This
1438 * could be optimized in the future to use a modified key cache
1439 * design to support per-STA RX GTK, but until that gets
1440 * implemented, use of software crypto for group addressed
1441 * frames is a acceptable to allow RSN IBSS to be used.
1446 mutex_lock(&priv->mutex);
1447 ath_dbg(common, CONFIG, "Set HW Key\n");
1448 ath9k_htc_ps_wakeup(priv);
1452 ret = ath_key_config(common, vif, sta, key);
1454 key->hw_key_idx = ret;
1455 /* push IV and Michael MIC generation to stack */
1456 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1457 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1458 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1459 if (priv->ah->sw_mgmt_crypto_tx &&
1460 key->cipher == WLAN_CIPHER_SUITE_CCMP)
1461 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1466 ath_key_delete(common, key);
1472 ath9k_htc_ps_restore(priv);
1473 mutex_unlock(&priv->mutex);
1478 static void ath9k_htc_set_bssid(struct ath9k_htc_priv *priv)
1480 struct ath_common *common = ath9k_hw_common(priv->ah);
1482 ath9k_hw_write_associd(priv->ah);
1483 ath_dbg(common, CONFIG, "BSSID: %pM aid: 0x%x\n",
1484 common->curbssid, common->curaid);
1487 static void ath9k_htc_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1489 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data;
1490 struct ath_common *common = ath9k_hw_common(priv->ah);
1491 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1493 if ((vif->type == NL80211_IFTYPE_STATION) && bss_conf->assoc) {
1494 common->curaid = bss_conf->aid;
1495 common->last_rssi = ATH_RSSI_DUMMY_MARKER;
1496 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1497 set_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
1501 static void ath9k_htc_choose_set_bssid(struct ath9k_htc_priv *priv)
1503 if (priv->num_sta_assoc_vif == 1) {
1504 ieee80211_iterate_active_interfaces_atomic(
1505 priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1506 ath9k_htc_bss_iter, priv);
1507 ath9k_htc_set_bssid(priv);
1511 static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
1512 struct ieee80211_vif *vif,
1513 struct ieee80211_bss_conf *bss_conf,
1516 struct ath9k_htc_priv *priv = hw->priv;
1517 struct ath_hw *ah = priv->ah;
1518 struct ath_common *common = ath9k_hw_common(ah);
1521 mutex_lock(&priv->mutex);
1522 ath9k_htc_ps_wakeup(priv);
1524 if (changed & BSS_CHANGED_ASSOC) {
1525 ath_dbg(common, CONFIG, "BSS Changed ASSOC %d\n",
1529 priv->num_sta_assoc_vif++ : priv->num_sta_assoc_vif--;
1531 if (!bss_conf->assoc)
1532 clear_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
1534 if (priv->ah->opmode == NL80211_IFTYPE_STATION) {
1535 ath9k_htc_choose_set_bssid(priv);
1536 if (bss_conf->assoc && (priv->num_sta_assoc_vif == 1))
1537 ath9k_htc_start_ani(priv);
1538 else if (priv->num_sta_assoc_vif == 0)
1539 ath9k_htc_stop_ani(priv);
1543 if (changed & BSS_CHANGED_IBSS) {
1544 if (priv->ah->opmode == NL80211_IFTYPE_ADHOC) {
1545 common->curaid = bss_conf->aid;
1546 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1547 ath9k_htc_set_bssid(priv);
1551 if ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon) {
1552 ath_dbg(common, CONFIG, "Beacon enabled for BSS: %pM\n",
1554 ath9k_htc_set_tsfadjust(priv, vif);
1555 priv->cur_beacon_conf.enable_beacon = 1;
1556 ath9k_htc_beacon_config(priv, vif);
1559 if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) {
1561 * Disable SWBA interrupt only if there are no
1562 * concurrent AP/mesh or IBSS interfaces.
1564 if ((priv->num_ap_vif + priv->num_mbss_vif <= 1) ||
1565 priv->num_ibss_vif) {
1566 ath_dbg(common, CONFIG,
1567 "Beacon disabled for BSS: %pM\n",
1569 priv->cur_beacon_conf.enable_beacon = 0;
1570 ath9k_htc_beacon_config(priv, vif);
1574 if (changed & BSS_CHANGED_BEACON_INT) {
1576 * Reset the HW TSF for the first AP or mesh interface.
1578 if (priv->nvifs == 1 &&
1579 ((priv->ah->opmode == NL80211_IFTYPE_AP &&
1580 vif->type == NL80211_IFTYPE_AP &&
1581 priv->num_ap_vif == 1) ||
1582 (priv->ah->opmode == NL80211_IFTYPE_MESH_POINT &&
1583 vif->type == NL80211_IFTYPE_MESH_POINT &&
1584 priv->num_mbss_vif == 1))) {
1585 set_bit(OP_TSF_RESET, &priv->op_flags);
1587 ath_dbg(common, CONFIG,
1588 "Beacon interval changed for BSS: %pM\n",
1590 ath9k_htc_beacon_config(priv, vif);
1593 if (changed & BSS_CHANGED_ERP_SLOT) {
1594 if (bss_conf->use_short_slot)
1598 if (vif->type == NL80211_IFTYPE_AP) {
1600 * Defer update, so that connected stations can adjust
1601 * their settings at the same time.
1602 * See beacon.c for more details
1604 priv->beacon.slottime = slottime;
1605 priv->beacon.updateslot = UPDATE;
1607 ah->slottime = slottime;
1608 ath9k_hw_init_global_settings(ah);
1612 if (changed & BSS_CHANGED_HT)
1613 ath9k_htc_update_rate(priv, vif, bss_conf);
1615 ath9k_htc_ps_restore(priv);
1616 mutex_unlock(&priv->mutex);
1619 static u64 ath9k_htc_get_tsf(struct ieee80211_hw *hw,
1620 struct ieee80211_vif *vif)
1622 struct ath9k_htc_priv *priv = hw->priv;
1625 mutex_lock(&priv->mutex);
1626 ath9k_htc_ps_wakeup(priv);
1627 tsf = ath9k_hw_gettsf64(priv->ah);
1628 ath9k_htc_ps_restore(priv);
1629 mutex_unlock(&priv->mutex);
1634 static void ath9k_htc_set_tsf(struct ieee80211_hw *hw,
1635 struct ieee80211_vif *vif, u64 tsf)
1637 struct ath9k_htc_priv *priv = hw->priv;
1639 mutex_lock(&priv->mutex);
1640 ath9k_htc_ps_wakeup(priv);
1641 ath9k_hw_settsf64(priv->ah, tsf);
1642 ath9k_htc_ps_restore(priv);
1643 mutex_unlock(&priv->mutex);
1646 static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw,
1647 struct ieee80211_vif *vif)
1649 struct ath9k_htc_priv *priv = hw->priv;
1651 mutex_lock(&priv->mutex);
1652 ath9k_htc_ps_wakeup(priv);
1653 ath9k_hw_reset_tsf(priv->ah);
1654 ath9k_htc_ps_restore(priv);
1655 mutex_unlock(&priv->mutex);
1658 static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
1659 struct ieee80211_vif *vif,
1660 enum ieee80211_ampdu_mlme_action action,
1661 struct ieee80211_sta *sta,
1662 u16 tid, u16 *ssn, u8 buf_size)
1664 struct ath9k_htc_priv *priv = hw->priv;
1665 struct ath9k_htc_sta *ista;
1668 mutex_lock(&priv->mutex);
1669 ath9k_htc_ps_wakeup(priv);
1672 case IEEE80211_AMPDU_RX_START:
1674 case IEEE80211_AMPDU_RX_STOP:
1676 case IEEE80211_AMPDU_TX_START:
1677 ret = ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
1679 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1681 case IEEE80211_AMPDU_TX_STOP_CONT:
1682 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1683 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1684 ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
1685 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1687 case IEEE80211_AMPDU_TX_OPERATIONAL:
1688 ista = (struct ath9k_htc_sta *) sta->drv_priv;
1689 spin_lock_bh(&priv->tx.tx_lock);
1690 ista->tid_state[tid] = AGGR_OPERATIONAL;
1691 spin_unlock_bh(&priv->tx.tx_lock);
1694 ath_err(ath9k_hw_common(priv->ah), "Unknown AMPDU action\n");
1697 ath9k_htc_ps_restore(priv);
1698 mutex_unlock(&priv->mutex);
1703 static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw,
1704 struct ieee80211_vif *vif,
1707 struct ath9k_htc_priv *priv = hw->priv;
1708 struct ath_common *common = ath9k_hw_common(priv->ah);
1710 mutex_lock(&priv->mutex);
1711 spin_lock_bh(&priv->beacon_lock);
1712 set_bit(ATH_OP_SCANNING, &common->op_flags);
1713 spin_unlock_bh(&priv->beacon_lock);
1714 cancel_work_sync(&priv->ps_work);
1715 ath9k_htc_stop_ani(priv);
1716 mutex_unlock(&priv->mutex);
1719 static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw,
1720 struct ieee80211_vif *vif)
1722 struct ath9k_htc_priv *priv = hw->priv;
1723 struct ath_common *common = ath9k_hw_common(priv->ah);
1725 mutex_lock(&priv->mutex);
1726 spin_lock_bh(&priv->beacon_lock);
1727 clear_bit(ATH_OP_SCANNING, &common->op_flags);
1728 spin_unlock_bh(&priv->beacon_lock);
1729 ath9k_htc_ps_wakeup(priv);
1730 ath9k_htc_vif_reconfig(priv);
1731 ath9k_htc_ps_restore(priv);
1732 mutex_unlock(&priv->mutex);
1735 static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1740 static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw,
1743 struct ath9k_htc_priv *priv = hw->priv;
1745 mutex_lock(&priv->mutex);
1746 ath9k_htc_ps_wakeup(priv);
1747 priv->ah->coverage_class = coverage_class;
1748 ath9k_hw_init_global_settings(priv->ah);
1749 ath9k_htc_ps_restore(priv);
1750 mutex_unlock(&priv->mutex);
1754 * Currently, this is used only for selecting the minimum rate
1755 * for management frames, rate selection for data frames remain
1758 static int ath9k_htc_set_bitrate_mask(struct ieee80211_hw *hw,
1759 struct ieee80211_vif *vif,
1760 const struct cfg80211_bitrate_mask *mask)
1762 struct ath9k_htc_priv *priv = hw->priv;
1763 struct ath_common *common = ath9k_hw_common(priv->ah);
1764 struct ath9k_htc_target_rate_mask tmask;
1765 struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1769 memset(&tmask, 0, sizeof(struct ath9k_htc_target_rate_mask));
1771 tmask.vif_index = avp->index;
1772 tmask.band = IEEE80211_BAND_2GHZ;
1773 tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_2GHZ].legacy);
1775 WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
1778 "Unable to set 2G rate mask for "
1779 "interface at idx: %d\n", avp->index);
1783 tmask.band = IEEE80211_BAND_5GHZ;
1784 tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_5GHZ].legacy);
1786 WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
1789 "Unable to set 5G rate mask for "
1790 "interface at idx: %d\n", avp->index);
1794 ath_dbg(common, CONFIG, "Set bitrate masks: 0x%x, 0x%x\n",
1795 mask->control[IEEE80211_BAND_2GHZ].legacy,
1796 mask->control[IEEE80211_BAND_5GHZ].legacy);
1802 static int ath9k_htc_get_stats(struct ieee80211_hw *hw,
1803 struct ieee80211_low_level_stats *stats)
1805 struct ath9k_htc_priv *priv = hw->priv;
1806 struct ath_hw *ah = priv->ah;
1807 struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1809 stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1810 stats->dot11RTSFailureCount = mib_stats->rts_bad;
1811 stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1812 stats->dot11RTSSuccessCount = mib_stats->rts_good;
1817 struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv)
1819 struct base_eep_header *pBase = NULL;
1821 * This can be done since all the 3 EEPROM families have the
1822 * same base header upto a certain point, and we are interested in
1823 * the data only upto that point.
1826 if (AR_SREV_9271(priv->ah))
1827 pBase = (struct base_eep_header *)
1828 &priv->ah->eeprom.map4k.baseEepHeader;
1829 else if (priv->ah->hw_version.usbdev == AR9280_USB)
1830 pBase = (struct base_eep_header *)
1831 &priv->ah->eeprom.def.baseEepHeader;
1832 else if (priv->ah->hw_version.usbdev == AR9287_USB)
1833 pBase = (struct base_eep_header *)
1834 &priv->ah->eeprom.map9287.baseEepHeader;
1839 static int ath9k_htc_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant,
1842 struct ath9k_htc_priv *priv = hw->priv;
1843 struct base_eep_header *pBase = ath9k_htc_get_eeprom_base(priv);
1845 *tx_ant = pBase->txMask;
1846 *rx_ant = pBase->rxMask;
1854 static void ath9k_htc_channel_switch_beacon(struct ieee80211_hw *hw,
1855 struct ieee80211_vif *vif,
1856 struct cfg80211_chan_def *chandef)
1858 struct ath9k_htc_priv *priv = hw->priv;
1860 /* mac80211 does not support CSA in multi-if cases (yet) */
1861 if (WARN_ON(priv->csa_vif))
1864 priv->csa_vif = vif;
1867 struct ieee80211_ops ath9k_htc_ops = {
1869 .start = ath9k_htc_start,
1870 .stop = ath9k_htc_stop,
1871 .add_interface = ath9k_htc_add_interface,
1872 .remove_interface = ath9k_htc_remove_interface,
1873 .config = ath9k_htc_config,
1874 .configure_filter = ath9k_htc_configure_filter,
1875 .sta_add = ath9k_htc_sta_add,
1876 .sta_remove = ath9k_htc_sta_remove,
1877 .conf_tx = ath9k_htc_conf_tx,
1878 .sta_rc_update = ath9k_htc_sta_rc_update,
1879 .bss_info_changed = ath9k_htc_bss_info_changed,
1880 .set_key = ath9k_htc_set_key,
1881 .get_tsf = ath9k_htc_get_tsf,
1882 .set_tsf = ath9k_htc_set_tsf,
1883 .reset_tsf = ath9k_htc_reset_tsf,
1884 .ampdu_action = ath9k_htc_ampdu_action,
1885 .sw_scan_start = ath9k_htc_sw_scan_start,
1886 .sw_scan_complete = ath9k_htc_sw_scan_complete,
1887 .set_rts_threshold = ath9k_htc_set_rts_threshold,
1888 .rfkill_poll = ath9k_htc_rfkill_poll_state,
1889 .set_coverage_class = ath9k_htc_set_coverage_class,
1890 .set_bitrate_mask = ath9k_htc_set_bitrate_mask,
1891 .get_stats = ath9k_htc_get_stats,
1892 .get_antenna = ath9k_htc_get_antenna,
1893 .channel_switch_beacon = ath9k_htc_channel_switch_beacon,
1895 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
1896 .get_et_sset_count = ath9k_htc_get_et_sset_count,
1897 .get_et_stats = ath9k_htc_get_et_stats,
1898 .get_et_strings = ath9k_htc_get_et_strings,