2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26 struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr)
28 struct ath6kl *ar = vif->ar;
29 struct ath6kl_sta *conn = NULL;
32 if (is_zero_ether_addr(node_addr))
35 max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
37 for (i = 0; i < max_conn; i++) {
38 if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
39 conn = &ar->sta_list[i];
47 struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid)
49 struct ath6kl_sta *conn = NULL;
52 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
53 if (ar->sta_list[ctr].aid == aid) {
54 conn = &ar->sta_list[ctr];
61 static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid,
62 u8 *wpaie, size_t ielen, u8 keymgmt,
63 u8 ucipher, u8 auth, u8 apsd_info)
65 struct ath6kl *ar = vif->ar;
66 struct ath6kl_sta *sta;
71 sta = &ar->sta_list[free_slot];
72 memcpy(sta->mac, mac, ETH_ALEN);
73 if (ielen <= ATH6KL_MAX_IE)
74 memcpy(sta->wpa_ie, wpaie, ielen);
76 sta->keymgmt = keymgmt;
77 sta->ucipher = ucipher;
79 sta->apsd_info = apsd_info;
81 ar->sta_list_index = ar->sta_list_index | (1 << free_slot);
82 ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid);
83 aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn);
86 static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i)
88 struct ath6kl_sta *sta = &ar->sta_list[i];
89 struct ath6kl_mgmt_buff *entry, *tmp;
91 /* empty the queued pkts in the PS queue if any */
92 spin_lock_bh(&sta->psq_lock);
93 skb_queue_purge(&sta->psq);
94 skb_queue_purge(&sta->apsdq);
96 if (sta->mgmt_psq_len != 0) {
97 list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) {
100 INIT_LIST_HEAD(&sta->mgmt_psq);
101 sta->mgmt_psq_len = 0;
104 spin_unlock_bh(&sta->psq_lock);
106 memset(&ar->ap_stats.sta[sta->aid - 1], 0,
107 sizeof(struct wmi_per_sta_stat));
108 eth_zero_addr(sta->mac);
109 memset(sta->wpa_ie, 0, ATH6KL_MAX_IE);
113 ar->sta_list_index = ar->sta_list_index & ~(1 << i);
114 aggr_reset_state(sta->aggr_conn);
117 static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
121 if (is_zero_ether_addr(mac))
124 if (is_broadcast_ether_addr(mac)) {
125 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
127 for (i = 0; i < AP_MAX_NUM_STA; i++) {
128 if (!is_zero_ether_addr(ar->sta_list[i].mac)) {
129 ath6kl_sta_cleanup(ar, i);
134 for (i = 0; i < AP_MAX_NUM_STA; i++) {
135 if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) {
136 ath6kl_dbg(ATH6KL_DBG_TRC,
137 "deleting station %pM aid=%d reason=%d\n",
138 mac, ar->sta_list[i].aid, reason);
139 ath6kl_sta_cleanup(ar, i);
149 enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac)
151 struct ath6kl *ar = devt;
152 return ar->ac2ep_map[ac];
155 struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar)
157 struct ath6kl_cookie *cookie;
159 cookie = ar->cookie_list;
160 if (cookie != NULL) {
161 ar->cookie_list = cookie->arc_list_next;
168 void ath6kl_cookie_init(struct ath6kl *ar)
172 ar->cookie_list = NULL;
173 ar->cookie_count = 0;
175 memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem));
177 for (i = 0; i < MAX_COOKIE_NUM; i++)
178 ath6kl_free_cookie(ar, &ar->cookie_mem[i]);
181 void ath6kl_cookie_cleanup(struct ath6kl *ar)
183 ar->cookie_list = NULL;
184 ar->cookie_count = 0;
187 void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie)
194 cookie->arc_list_next = ar->cookie_list;
195 ar->cookie_list = cookie;
200 * Read from the hardware through its diagnostic window. No cooperation
201 * from the firmware is required for this.
203 int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value)
207 ret = ath6kl_hif_diag_read32(ar, address, value);
209 ath6kl_warn("failed to read32 through diagnose window: %d\n",
218 * Write to the ATH6KL through its diagnostic window. No cooperation from
219 * the Target is required for this.
221 int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value)
225 ret = ath6kl_hif_diag_write32(ar, address, value);
228 ath6kl_err("failed to write 0x%x during diagnose window to 0x%x\n",
236 int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length)
238 u32 count, *buf = data;
241 if (WARN_ON(length % 4))
244 for (count = 0; count < length / 4; count++, address += 4) {
245 ret = ath6kl_diag_read32(ar, address, &buf[count]);
253 int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length)
259 if (WARN_ON(length % 4))
262 for (count = 0; count < length / 4; count++, address += 4) {
263 ret = ath6kl_diag_write32(ar, address, buf[count]);
271 int ath6kl_read_fwlogs(struct ath6kl *ar)
273 struct ath6kl_dbglog_hdr debug_hdr;
274 struct ath6kl_dbglog_buf debug_buf;
275 u32 address, length, firstbuf, debug_hdr_addr;
279 buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL);
283 address = TARG_VTOP(ar->target_type,
284 ath6kl_get_hi_item_addr(ar,
285 HI_ITEM(hi_dbglog_hdr)));
287 ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr);
291 /* Get the contents of the ring buffer */
292 if (debug_hdr_addr == 0) {
293 ath6kl_warn("Invalid address for debug_hdr_addr\n");
298 address = TARG_VTOP(ar->target_type, debug_hdr_addr);
299 ret = ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr));
303 address = TARG_VTOP(ar->target_type,
304 le32_to_cpu(debug_hdr.dbuf_addr));
306 ret = ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
313 address = TARG_VTOP(ar->target_type,
314 le32_to_cpu(debug_buf.buffer_addr));
315 length = le32_to_cpu(debug_buf.length);
317 if (length != 0 && (le32_to_cpu(debug_buf.length) <=
318 le32_to_cpu(debug_buf.bufsize))) {
319 length = ALIGN(length, 4);
321 ret = ath6kl_diag_read(ar, address,
326 ath6kl_debug_fwlog_event(ar, buf, length);
329 address = TARG_VTOP(ar->target_type,
330 le32_to_cpu(debug_buf.next));
331 ret = ath6kl_diag_read(ar, address, &debug_buf,
338 if (WARN_ON(loop == 0)) {
342 } while (address != firstbuf);
350 static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif)
355 for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) {
356 if (vif->wep_key_list[index].key_len) {
357 keyusage = GROUP_USAGE;
358 if (index == vif->def_txkey_index)
359 keyusage |= TX_USAGE;
361 ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx,
365 vif->wep_key_list[index].key_len,
367 vif->wep_key_list[index].key,
368 KEY_OP_INIT_VAL, NULL,
374 void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
376 struct ath6kl *ar = vif->ar;
377 struct ath6kl_req_key *ik;
379 u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
381 ik = &ar->ap_mode_bkey;
383 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
385 switch (vif->auth_mode) {
387 if (vif->prwise_crypto == WEP_CRYPT)
388 ath6kl_install_static_wep_keys(vif);
389 if (!ik->valid || ik->key_type != WAPI_CRYPT)
391 /* for WAPI, we need to set the delayed group key, continue: */
394 case (WPA_PSK_AUTH | WPA2_PSK_AUTH):
398 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
399 "Delayed addkey for the initial group key for AP mode\n");
400 memset(key_rsc, 0, sizeof(key_rsc));
401 res = ath6kl_wmi_addkey_cmd(
402 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
403 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
405 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
407 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
408 "Delayed addkey failed: %d\n", res);
413 if (ar->last_ch != channel)
414 /* we actually don't know the phymode, default to HT20 */
415 ath6kl_cfg80211_ch_switch_notify(vif, channel, WMI_11G_HT20);
417 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
418 set_bit(CONNECTED, &vif->flags);
419 netif_carrier_on(vif->ndev);
422 void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
423 u8 keymgmt, u8 ucipher, u8 auth,
424 u8 assoc_req_len, u8 *assoc_info, u8 apsd_info)
426 u8 *ies = NULL, *wpa_ie = NULL, *pos;
428 struct station_info *sinfo;
430 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
432 if (aid < 1 || aid > AP_MAX_NUM_STA)
435 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
436 struct ieee80211_mgmt *mgmt =
437 (struct ieee80211_mgmt *) assoc_info;
438 if (ieee80211_is_assoc_req(mgmt->frame_control) &&
439 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
440 sizeof(mgmt->u.assoc_req)) {
441 ies = mgmt->u.assoc_req.variable;
442 ies_len = assoc_info + assoc_req_len - ies;
443 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
444 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
445 + sizeof(mgmt->u.reassoc_req)) {
446 ies = mgmt->u.reassoc_req.variable;
447 ies_len = assoc_info + assoc_req_len - ies;
452 while (pos && pos + 1 < ies + ies_len) {
453 if (pos + 2 + pos[1] > ies + ies_len)
455 if (pos[0] == WLAN_EID_RSN)
456 wpa_ie = pos; /* RSN IE */
457 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
459 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
461 wpa_ie = pos; /* WPA IE */
462 else if (pos[5] == 0x04) {
463 wpa_ie = pos; /* WPS IE */
464 break; /* overrides WPA/RSN IE */
466 } else if (pos[0] == 0x44 && wpa_ie == NULL) {
468 * Note: WAPI Parameter Set IE re-uses Element ID that
469 * was officially allocated for BSS AC Access Delay. As
470 * such, we need to be a bit more careful on when
471 * parsing the frame. However, BSS AC Access Delay
472 * element is not supposed to be included in
473 * (Re)Association Request frames, so this should not
476 wpa_ie = pos; /* WAPI IE */
482 ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie,
483 wpa_ie ? 2 + wpa_ie[1] : 0,
484 keymgmt, ucipher, auth, apsd_info);
486 /* send event to application */
487 sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
491 /* TODO: sinfo.generation */
493 sinfo->assoc_req_ies = ies;
494 sinfo->assoc_req_ies_len = ies_len;
496 cfg80211_new_sta(vif->ndev, mac_addr, sinfo, GFP_KERNEL);
498 netif_wake_queue(vif->ndev);
503 void disconnect_timer_handler(struct timer_list *t)
505 struct ath6kl_vif *vif = from_timer(vif, t, disconnect_timer);
507 ath6kl_init_profile_info(vif);
508 ath6kl_disconnect(vif);
511 void ath6kl_disconnect(struct ath6kl_vif *vif)
513 if (test_bit(CONNECTED, &vif->flags) ||
514 test_bit(CONNECT_PEND, &vif->flags)) {
515 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
517 * Disconnect command is issued, clear the connect pending
518 * flag. The connected flag will be cleared in
519 * disconnect event notification.
521 clear_bit(CONNECT_PEND, &vif->flags);
525 /* WMI Event handlers */
527 void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver,
528 enum wmi_phy_cap cap)
530 struct ath6kl *ar = devt;
532 memcpy(ar->mac_addr, datap, ETH_ALEN);
534 ath6kl_dbg(ATH6KL_DBG_BOOT,
535 "ready event mac addr %pM sw_ver 0x%x abi_ver 0x%x cap 0x%x\n",
536 ar->mac_addr, sw_ver, abi_ver, cap);
538 ar->version.wlan_ver = sw_ver;
539 ar->version.abi_ver = abi_ver;
542 if (strlen(ar->wiphy->fw_version) == 0) {
543 snprintf(ar->wiphy->fw_version,
544 sizeof(ar->wiphy->fw_version),
546 (ar->version.wlan_ver & 0xf0000000) >> 28,
547 (ar->version.wlan_ver & 0x0f000000) >> 24,
548 (ar->version.wlan_ver & 0x00ff0000) >> 16,
549 (ar->version.wlan_ver & 0x0000ffff));
552 /* indicate to the waiting thread that the ready event was received */
553 set_bit(WMI_READY, &ar->flag);
554 wake_up(&ar->event_wq);
557 void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
559 struct ath6kl *ar = vif->ar;
560 bool aborted = false;
562 if (status != WMI_SCAN_STATUS_SUCCESS)
565 ath6kl_cfg80211_scan_complete_event(vif, aborted);
567 if (!ar->usr_bss_filter) {
568 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
569 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
573 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
576 static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel)
578 struct ath6kl *ar = vif->ar;
580 vif->profile.ch = cpu_to_le16(channel);
582 switch (vif->nw_type) {
585 * reconfigure any saved RSN IE capabilites in the beacon /
586 * probe response to stay in sync with the supplicant.
588 if (vif->rsn_capab &&
589 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
590 ar->fw_capabilities))
591 ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
592 WLAN_EID_RSN, WMI_RSN_IE_CAPB,
593 (const u8 *) &vif->rsn_capab,
594 sizeof(vif->rsn_capab));
596 return ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx,
599 ath6kl_err("won't switch channels nw_type=%d\n", vif->nw_type);
604 static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel)
606 struct ath6kl_vif *vif;
609 if (!ar->want_ch_switch)
612 spin_lock_bh(&ar->list_lock);
613 list_for_each_entry(vif, &ar->vif_list, list) {
614 if (ar->want_ch_switch & (1 << vif->fw_vif_idx))
615 res = ath6kl_commit_ch_switch(vif, channel);
617 /* if channel switch failed, oh well we tried */
618 ar->want_ch_switch &= ~(1 << vif->fw_vif_idx);
621 ath6kl_err("channel switch failed nw_type %d res %d\n",
624 spin_unlock_bh(&ar->list_lock);
627 void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
628 u16 listen_int, u16 beacon_int,
629 enum network_type net_type, u8 beacon_ie_len,
630 u8 assoc_req_len, u8 assoc_resp_len,
633 struct ath6kl *ar = vif->ar;
635 ath6kl_cfg80211_connect_event(vif, channel, bssid,
636 listen_int, beacon_int,
637 net_type, beacon_ie_len,
638 assoc_req_len, assoc_resp_len,
641 memcpy(vif->bssid, bssid, sizeof(vif->bssid));
642 vif->bss_ch = channel;
644 if ((vif->nw_type == INFRA_NETWORK)) {
645 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
646 vif->listen_intvl_t, 0);
647 ath6kl_check_ch_switch(ar, channel);
650 netif_wake_queue(vif->ndev);
652 /* Update connect & link status atomically */
653 spin_lock_bh(&vif->if_lock);
654 set_bit(CONNECTED, &vif->flags);
655 clear_bit(CONNECT_PEND, &vif->flags);
656 netif_carrier_on(vif->ndev);
657 spin_unlock_bh(&vif->if_lock);
659 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
660 vif->reconnect_flag = 0;
662 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
663 memset(ar->node_map, 0, sizeof(ar->node_map));
665 ar->next_ep_id = ENDPOINT_2;
668 if (!ar->usr_bss_filter) {
669 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
670 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
671 CURRENT_BSS_FILTER, 0);
675 void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
677 struct ath6kl_sta *sta;
678 struct ath6kl *ar = vif->ar;
682 * For AP case, keyid will have aid of STA which sent pkt with
683 * MIC error. Use this aid to get MAC & send it to hostapd.
685 if (vif->nw_type == AP_NETWORK) {
686 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
690 ath6kl_dbg(ATH6KL_DBG_TRC,
691 "ap tkip mic error received from aid=%d\n", keyid);
693 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
694 cfg80211_michael_mic_failure(vif->ndev, sta->mac,
695 NL80211_KEYTYPE_PAIRWISE, keyid,
698 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
702 static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
704 struct wmi_target_stats *tgt_stats =
705 (struct wmi_target_stats *) ptr;
706 struct ath6kl *ar = vif->ar;
707 struct target_stats *stats = &vif->target_stats;
708 struct tkip_ccmp_stats *ccmp_stats;
712 if (len < sizeof(*tgt_stats))
715 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
717 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
718 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
719 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
720 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
721 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
722 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
723 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
724 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
725 stats->tx_rts_success_cnt +=
726 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
728 for (ac = 0; ac < WMM_NUM_AC; ac++)
729 stats->tx_pkt_per_ac[ac] +=
730 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
732 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
733 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
734 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
735 stats->tx_mult_retry_cnt +=
736 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
737 stats->tx_rts_fail_cnt +=
738 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
740 rate = a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate);
741 stats->tx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, rate);
743 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
744 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
745 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
746 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
747 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
748 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
749 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
750 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
751 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
752 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
753 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
754 stats->rx_key_cache_miss +=
755 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
756 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
757 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
759 rate = a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate);
760 stats->rx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, rate);
762 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
764 stats->tkip_local_mic_fail +=
765 le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
766 stats->tkip_cnter_measures_invoked +=
767 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
768 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
770 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
771 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
773 stats->pwr_save_fail_cnt +=
774 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
775 stats->noise_floor_calib =
776 a_sle32_to_cpu(tgt_stats->noise_floor_calib);
778 stats->cs_bmiss_cnt +=
779 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
780 stats->cs_low_rssi_cnt +=
781 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
782 stats->cs_connect_cnt +=
783 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
784 stats->cs_discon_cnt +=
785 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
787 stats->cs_ave_beacon_rssi =
788 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
790 stats->cs_last_roam_msec =
791 tgt_stats->cserv_stats.cs_last_roam_msec;
792 stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
793 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
795 stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
797 stats->wow_pkt_dropped +=
798 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
799 stats->wow_host_pkt_wakeups +=
800 tgt_stats->wow_stats.wow_host_pkt_wakeups;
801 stats->wow_host_evt_wakeups +=
802 tgt_stats->wow_stats.wow_host_evt_wakeups;
803 stats->wow_evt_discarded +=
804 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
806 stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received);
807 stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied);
808 stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched);
810 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
811 clear_bit(STATS_UPDATE_PEND, &vif->flags);
812 wake_up(&ar->event_wq);
816 static void ath6kl_add_le32(__le32 *var, __le32 val)
818 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
821 void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
823 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
824 struct ath6kl *ar = vif->ar;
825 struct wmi_ap_mode_stat *ap = &ar->ap_stats;
826 struct wmi_per_sta_stat *st_ap, *st_p;
829 if (vif->nw_type == AP_NETWORK) {
830 if (len < sizeof(*p))
833 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
834 st_ap = &ap->sta[ac];
837 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
838 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
839 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
840 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
841 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
842 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
843 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
844 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
848 ath6kl_update_target_stats(vif, ptr, len);
852 void ath6kl_wakeup_event(void *dev)
854 struct ath6kl *ar = (struct ath6kl *) dev;
856 wake_up(&ar->event_wq);
859 void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
861 struct ath6kl *ar = (struct ath6kl *) devt;
864 wake_up(&ar->event_wq);
867 void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
869 struct ath6kl_sta *conn;
871 bool psq_empty = false;
872 struct ath6kl *ar = vif->ar;
873 struct ath6kl_mgmt_buff *mgmt_buf;
875 conn = ath6kl_find_sta_by_aid(ar, aid);
880 * Send out a packet queued on ps queue. When the ps queue
881 * becomes empty update the PVB for this station.
883 spin_lock_bh(&conn->psq_lock);
884 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
885 spin_unlock_bh(&conn->psq_lock);
888 /* TODO: Send out a NULL data frame */
891 spin_lock_bh(&conn->psq_lock);
892 if (conn->mgmt_psq_len > 0) {
893 mgmt_buf = list_first_entry(&conn->mgmt_psq,
894 struct ath6kl_mgmt_buff, list);
895 list_del(&mgmt_buf->list);
896 conn->mgmt_psq_len--;
897 spin_unlock_bh(&conn->psq_lock);
899 conn->sta_flags |= STA_PS_POLLED;
900 ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx,
901 mgmt_buf->id, mgmt_buf->freq,
902 mgmt_buf->wait, mgmt_buf->buf,
903 mgmt_buf->len, mgmt_buf->no_cck);
904 conn->sta_flags &= ~STA_PS_POLLED;
907 skb = skb_dequeue(&conn->psq);
908 spin_unlock_bh(&conn->psq_lock);
910 conn->sta_flags |= STA_PS_POLLED;
911 ath6kl_data_tx(skb, vif->ndev);
912 conn->sta_flags &= ~STA_PS_POLLED;
915 spin_lock_bh(&conn->psq_lock);
916 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
917 spin_unlock_bh(&conn->psq_lock);
920 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
923 void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
925 bool mcastq_empty = false;
927 struct ath6kl *ar = vif->ar;
930 * If there are no associated STAs, ignore the DTIM expiry event.
931 * There can be potential race conditions where the last associated
932 * STA may disconnect & before the host could clear the 'Indicate
933 * DTIM' request to the firmware, the firmware would have just
934 * indicated a DTIM expiry event. The race is between 'clear DTIM
935 * expiry cmd' going from the host to the firmware & the DTIM
936 * expiry event happening from the firmware to the host.
938 if (!ar->sta_list_index)
941 spin_lock_bh(&ar->mcastpsq_lock);
942 mcastq_empty = skb_queue_empty(&ar->mcastpsq);
943 spin_unlock_bh(&ar->mcastpsq_lock);
948 /* set the STA flag to dtim_expired for the frame to go out */
949 set_bit(DTIM_EXPIRED, &vif->flags);
951 spin_lock_bh(&ar->mcastpsq_lock);
952 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
953 spin_unlock_bh(&ar->mcastpsq_lock);
955 ath6kl_data_tx(skb, vif->ndev);
957 spin_lock_bh(&ar->mcastpsq_lock);
959 spin_unlock_bh(&ar->mcastpsq_lock);
961 clear_bit(DTIM_EXPIRED, &vif->flags);
963 /* clear the LSB of the BitMapCtl field of the TIM IE */
964 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
967 void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
968 u8 assoc_resp_len, u8 *assoc_info,
969 u16 prot_reason_status)
971 struct ath6kl *ar = vif->ar;
973 if (vif->nw_type == AP_NETWORK) {
974 /* disconnect due to other STA vif switching channels */
975 if (reason == BSS_DISCONNECTED &&
976 prot_reason_status == WMI_AP_REASON_STA_ROAM) {
977 ar->want_ch_switch |= 1 << vif->fw_vif_idx;
978 /* bail back to this channel if STA vif fails connect */
979 ar->last_ch = le16_to_cpu(vif->profile.ch);
982 if (prot_reason_status == WMI_AP_REASON_MAX_STA) {
983 /* send max client reached notification to user space */
984 cfg80211_conn_failed(vif->ndev, bssid,
985 NL80211_CONN_FAIL_MAX_CLIENTS,
989 if (prot_reason_status == WMI_AP_REASON_ACL) {
990 /* send blocked client notification to user space */
991 cfg80211_conn_failed(vif->ndev, bssid,
992 NL80211_CONN_FAIL_BLOCKED_CLIENT,
996 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
999 /* if no more associated STAs, empty the mcast PS q */
1000 if (ar->sta_list_index == 0) {
1001 spin_lock_bh(&ar->mcastpsq_lock);
1002 skb_queue_purge(&ar->mcastpsq);
1003 spin_unlock_bh(&ar->mcastpsq_lock);
1005 /* clear the LSB of the TIM IE's BitMapCtl field */
1006 if (test_bit(WMI_READY, &ar->flag))
1007 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
1011 if (!is_broadcast_ether_addr(bssid)) {
1012 /* send event to application */
1013 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
1016 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
1017 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
1018 clear_bit(CONNECTED, &vif->flags);
1023 ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
1024 assoc_resp_len, assoc_info,
1025 prot_reason_status);
1027 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
1029 del_timer(&vif->disconnect_timer);
1031 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
1034 * If the event is due to disconnect cmd from the host, only they
1035 * the target would stop trying to connect. Under any other
1036 * condition, target would keep trying to connect.
1038 if (reason == DISCONNECT_CMD) {
1039 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
1040 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1041 NONE_BSS_FILTER, 0);
1043 set_bit(CONNECT_PEND, &vif->flags);
1044 if (((reason == ASSOC_FAILED) &&
1045 (prot_reason_status == 0x11)) ||
1046 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) &&
1047 (vif->reconnect_flag == 1))) {
1048 set_bit(CONNECTED, &vif->flags);
1053 /* restart disconnected concurrent vifs waiting for new channel */
1054 ath6kl_check_ch_switch(ar, ar->last_ch);
1056 /* update connect & link status atomically */
1057 spin_lock_bh(&vif->if_lock);
1058 clear_bit(CONNECTED, &vif->flags);
1059 netif_carrier_off(vif->ndev);
1060 spin_unlock_bh(&vif->if_lock);
1062 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
1063 vif->reconnect_flag = 0;
1065 if (reason != CSERV_DISCONNECT)
1066 ar->user_key_ctrl = 0;
1068 netif_stop_queue(vif->ndev);
1069 memset(vif->bssid, 0, sizeof(vif->bssid));
1072 ath6kl_tx_data_cleanup(ar);
1075 struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
1077 struct ath6kl_vif *vif;
1079 spin_lock_bh(&ar->list_lock);
1080 if (list_empty(&ar->vif_list)) {
1081 spin_unlock_bh(&ar->list_lock);
1085 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
1087 spin_unlock_bh(&ar->list_lock);
1092 static int ath6kl_open(struct net_device *dev)
1094 struct ath6kl_vif *vif = netdev_priv(dev);
1096 set_bit(WLAN_ENABLED, &vif->flags);
1098 if (test_bit(CONNECTED, &vif->flags)) {
1099 netif_carrier_on(dev);
1100 netif_wake_queue(dev);
1102 netif_carrier_off(dev);
1108 static int ath6kl_close(struct net_device *dev)
1110 struct ath6kl_vif *vif = netdev_priv(dev);
1112 netif_stop_queue(dev);
1114 ath6kl_cfg80211_stop(vif);
1116 clear_bit(WLAN_ENABLED, &vif->flags);
1121 static int ath6kl_set_features(struct net_device *dev,
1122 netdev_features_t features)
1124 struct ath6kl_vif *vif = netdev_priv(dev);
1125 struct ath6kl *ar = vif->ar;
1128 if ((features & NETIF_F_RXCSUM) &&
1129 (ar->rx_meta_ver != WMI_META_VERSION_2)) {
1130 ar->rx_meta_ver = WMI_META_VERSION_2;
1131 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1133 ar->rx_meta_ver, 0, 0);
1135 dev->features = features & ~NETIF_F_RXCSUM;
1138 } else if (!(features & NETIF_F_RXCSUM) &&
1139 (ar->rx_meta_ver == WMI_META_VERSION_2)) {
1140 ar->rx_meta_ver = 0;
1141 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1143 ar->rx_meta_ver, 0, 0);
1145 dev->features = features | NETIF_F_RXCSUM;
1153 static void ath6kl_set_multicast_list(struct net_device *ndev)
1155 struct ath6kl_vif *vif = netdev_priv(ndev);
1156 bool mc_all_on = false;
1157 int mc_count = netdev_mc_count(ndev);
1158 struct netdev_hw_addr *ha;
1160 struct ath6kl_mc_filter *mc_filter, *tmp;
1161 struct list_head mc_filter_new;
1164 if (!test_bit(WMI_READY, &vif->ar->flag) ||
1165 !test_bit(WLAN_ENABLED, &vif->flags))
1168 /* Enable multicast-all filter. */
1169 mc_all_on = !!(ndev->flags & IFF_PROMISC) ||
1170 !!(ndev->flags & IFF_ALLMULTI) ||
1171 !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST);
1174 set_bit(NETDEV_MCAST_ALL_ON, &vif->flags);
1176 clear_bit(NETDEV_MCAST_ALL_ON, &vif->flags);
1178 if (test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
1179 vif->ar->fw_capabilities)) {
1180 mc_all_on = mc_all_on || (vif->ar->state == ATH6KL_STATE_ON);
1183 if (!(ndev->flags & IFF_MULTICAST)) {
1185 set_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);
1187 clear_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);
1190 /* Enable/disable "multicast-all" filter*/
1191 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast-all filter\n",
1192 mc_all_on ? "enabling" : "disabling");
1194 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx,
1197 ath6kl_warn("Failed to %s multicast-all receive\n",
1198 mc_all_on ? "enable" : "disable");
1202 if (test_bit(NETDEV_MCAST_ALL_ON, &vif->flags))
1205 /* Keep the driver and firmware mcast list in sync. */
1206 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
1208 netdev_for_each_mc_addr(ha, ndev) {
1209 if (memcmp(ha->addr, mc_filter->hw_addr,
1210 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1218 * Delete the filter which was previously set
1219 * but not in the new request.
1221 ath6kl_dbg(ATH6KL_DBG_TRC,
1222 "Removing %pM from multicast filter\n",
1223 mc_filter->hw_addr);
1224 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1225 vif->fw_vif_idx, mc_filter->hw_addr,
1228 ath6kl_warn("Failed to remove multicast filter:%pM\n",
1229 mc_filter->hw_addr);
1233 list_del(&mc_filter->list);
1238 INIT_LIST_HEAD(&mc_filter_new);
1240 netdev_for_each_mc_addr(ha, ndev) {
1242 list_for_each_entry(mc_filter, &vif->mc_filter, list) {
1243 if (memcmp(ha->addr, mc_filter->hw_addr,
1244 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1251 mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter),
1258 memcpy(mc_filter->hw_addr, ha->addr,
1259 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
1260 /* Set the multicast filter */
1261 ath6kl_dbg(ATH6KL_DBG_TRC,
1262 "Adding %pM to multicast filter list\n",
1263 mc_filter->hw_addr);
1264 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1265 vif->fw_vif_idx, mc_filter->hw_addr,
1268 ath6kl_warn("Failed to add multicast filter :%pM\n",
1269 mc_filter->hw_addr);
1274 list_add_tail(&mc_filter->list, &mc_filter_new);
1279 list_splice_tail(&mc_filter_new, &vif->mc_filter);
1282 static const struct net_device_ops ath6kl_netdev_ops = {
1283 .ndo_open = ath6kl_open,
1284 .ndo_stop = ath6kl_close,
1285 .ndo_start_xmit = ath6kl_data_tx,
1286 .ndo_set_features = ath6kl_set_features,
1287 .ndo_set_rx_mode = ath6kl_set_multicast_list,
1290 void init_netdev(struct net_device *dev)
1292 struct ath6kl *ar = ath6kl_priv(dev);
1294 dev->netdev_ops = &ath6kl_netdev_ops;
1295 dev->needs_free_netdev = true;
1296 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
1298 dev->needed_headroom = ETH_HLEN;
1299 dev->needed_headroom += roundup(sizeof(struct ath6kl_llc_snap_hdr) +
1300 sizeof(struct wmi_data_hdr) +
1302 WMI_MAX_TX_META_SZ +
1303 ATH6KL_HTC_ALIGN_BYTES, 4);
1305 if (!test_bit(ATH6KL_FW_CAPABILITY_NO_IP_CHECKSUM,
1306 ar->fw_capabilities))
1307 dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM;