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.
24 struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr)
26 struct ath6kl *ar = vif->ar;
27 struct ath6kl_sta *conn = NULL;
30 max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
32 for (i = 0; i < max_conn; i++) {
33 if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
34 conn = &ar->sta_list[i];
42 struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid)
44 struct ath6kl_sta *conn = NULL;
47 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
48 if (ar->sta_list[ctr].aid == aid) {
49 conn = &ar->sta_list[ctr];
56 static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid,
57 u8 *wpaie, size_t ielen, u8 keymgmt,
58 u8 ucipher, u8 auth, u8 apsd_info)
60 struct ath6kl *ar = vif->ar;
61 struct ath6kl_sta *sta;
66 sta = &ar->sta_list[free_slot];
67 memcpy(sta->mac, mac, ETH_ALEN);
68 if (ielen <= ATH6KL_MAX_IE)
69 memcpy(sta->wpa_ie, wpaie, ielen);
71 sta->keymgmt = keymgmt;
72 sta->ucipher = ucipher;
74 sta->apsd_info = apsd_info;
76 ar->sta_list_index = ar->sta_list_index | (1 << free_slot);
77 ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid);
78 aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn);
81 static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i)
83 struct ath6kl_sta *sta = &ar->sta_list[i];
84 struct ath6kl_mgmt_buff *entry, *tmp;
86 /* empty the queued pkts in the PS queue if any */
87 spin_lock_bh(&sta->psq_lock);
88 skb_queue_purge(&sta->psq);
89 skb_queue_purge(&sta->apsdq);
91 if (sta->mgmt_psq_len != 0) {
92 list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) {
95 INIT_LIST_HEAD(&sta->mgmt_psq);
96 sta->mgmt_psq_len = 0;
99 spin_unlock_bh(&sta->psq_lock);
101 memset(&ar->ap_stats.sta[sta->aid - 1], 0,
102 sizeof(struct wmi_per_sta_stat));
103 memset(sta->mac, 0, ETH_ALEN);
104 memset(sta->wpa_ie, 0, ATH6KL_MAX_IE);
108 ar->sta_list_index = ar->sta_list_index & ~(1 << i);
109 aggr_reset_state(sta->aggr_conn);
112 static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
116 if (is_zero_ether_addr(mac))
119 if (is_broadcast_ether_addr(mac)) {
120 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
122 for (i = 0; i < AP_MAX_NUM_STA; i++) {
123 if (!is_zero_ether_addr(ar->sta_list[i].mac)) {
124 ath6kl_sta_cleanup(ar, i);
129 for (i = 0; i < AP_MAX_NUM_STA; i++) {
130 if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) {
131 ath6kl_dbg(ATH6KL_DBG_TRC,
132 "deleting station %pM aid=%d reason=%d\n",
133 mac, ar->sta_list[i].aid, reason);
134 ath6kl_sta_cleanup(ar, i);
144 enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac)
146 struct ath6kl *ar = devt;
147 return ar->ac2ep_map[ac];
150 struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar)
152 struct ath6kl_cookie *cookie;
154 cookie = ar->cookie_list;
155 if (cookie != NULL) {
156 ar->cookie_list = cookie->arc_list_next;
163 void ath6kl_cookie_init(struct ath6kl *ar)
167 ar->cookie_list = NULL;
168 ar->cookie_count = 0;
170 memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem));
172 for (i = 0; i < MAX_COOKIE_NUM; i++)
173 ath6kl_free_cookie(ar, &ar->cookie_mem[i]);
176 void ath6kl_cookie_cleanup(struct ath6kl *ar)
178 ar->cookie_list = NULL;
179 ar->cookie_count = 0;
182 void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie)
189 cookie->arc_list_next = ar->cookie_list;
190 ar->cookie_list = cookie;
195 * Read from the hardware through its diagnostic window. No cooperation
196 * from the firmware is required for this.
198 int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value)
202 ret = ath6kl_hif_diag_read32(ar, address, value);
204 ath6kl_warn("failed to read32 through diagnose window: %d\n",
213 * Write to the ATH6KL through its diagnostic window. No cooperation from
214 * the Target is required for this.
216 int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value)
220 ret = ath6kl_hif_diag_write32(ar, address, value);
223 ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n",
231 int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length)
233 u32 count, *buf = data;
236 if (WARN_ON(length % 4))
239 for (count = 0; count < length / 4; count++, address += 4) {
240 ret = ath6kl_diag_read32(ar, address, &buf[count]);
248 int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length)
254 if (WARN_ON(length % 4))
257 for (count = 0; count < length / 4; count++, address += 4) {
258 ret = ath6kl_diag_write32(ar, address, buf[count]);
266 int ath6kl_read_fwlogs(struct ath6kl *ar)
268 struct ath6kl_dbglog_hdr debug_hdr;
269 struct ath6kl_dbglog_buf debug_buf;
270 u32 address, length, dropped, firstbuf, debug_hdr_addr;
274 buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL);
278 address = TARG_VTOP(ar->target_type,
279 ath6kl_get_hi_item_addr(ar,
280 HI_ITEM(hi_dbglog_hdr)));
282 ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr);
286 /* Get the contents of the ring buffer */
287 if (debug_hdr_addr == 0) {
288 ath6kl_warn("Invalid address for debug_hdr_addr\n");
293 address = TARG_VTOP(ar->target_type, debug_hdr_addr);
294 ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr));
296 address = TARG_VTOP(ar->target_type,
297 le32_to_cpu(debug_hdr.dbuf_addr));
299 dropped = le32_to_cpu(debug_hdr.dropped);
300 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
305 address = TARG_VTOP(ar->target_type,
306 le32_to_cpu(debug_buf.buffer_addr));
307 length = le32_to_cpu(debug_buf.length);
309 if (length != 0 && (le32_to_cpu(debug_buf.length) <=
310 le32_to_cpu(debug_buf.bufsize))) {
311 length = ALIGN(length, 4);
313 ret = ath6kl_diag_read(ar, address,
318 ath6kl_debug_fwlog_event(ar, buf, length);
321 address = TARG_VTOP(ar->target_type,
322 le32_to_cpu(debug_buf.next));
323 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
329 if (WARN_ON(loop == 0)) {
333 } while (address != firstbuf);
341 /* FIXME: move to a better place, target.h? */
342 #define AR6003_RESET_CONTROL_ADDRESS 0x00004000
343 #define AR6004_RESET_CONTROL_ADDRESS 0x00004000
345 void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
346 bool wait_fot_compltn, bool cold_reset)
352 if (target_type != TARGET_TYPE_AR6003 &&
353 target_type != TARGET_TYPE_AR6004)
356 data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) :
357 cpu_to_le32(RESET_CONTROL_MBOX_RST);
359 switch (target_type) {
360 case TARGET_TYPE_AR6003:
361 address = AR6003_RESET_CONTROL_ADDRESS;
363 case TARGET_TYPE_AR6004:
364 address = AR6004_RESET_CONTROL_ADDRESS;
368 status = ath6kl_diag_write32(ar, address, data);
371 ath6kl_err("failed to reset target\n");
374 static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif)
379 for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) {
380 if (vif->wep_key_list[index].key_len) {
381 keyusage = GROUP_USAGE;
382 if (index == vif->def_txkey_index)
383 keyusage |= TX_USAGE;
385 ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx,
389 vif->wep_key_list[index].key_len,
391 vif->wep_key_list[index].key,
392 KEY_OP_INIT_VAL, NULL,
398 void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
400 struct ath6kl *ar = vif->ar;
401 struct ath6kl_req_key *ik;
403 u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
405 ik = &ar->ap_mode_bkey;
407 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
409 switch (vif->auth_mode) {
411 if (vif->prwise_crypto == WEP_CRYPT)
412 ath6kl_install_static_wep_keys(vif);
413 if (!ik->valid || ik->key_type != WAPI_CRYPT)
415 /* for WAPI, we need to set the delayed group key, continue: */
418 case (WPA_PSK_AUTH | WPA2_PSK_AUTH):
422 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for "
423 "the initial group key for AP mode\n");
424 memset(key_rsc, 0, sizeof(key_rsc));
425 res = ath6kl_wmi_addkey_cmd(
426 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
427 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
429 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
431 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed "
432 "addkey failed: %d\n", res);
437 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
438 set_bit(CONNECTED, &vif->flags);
439 netif_carrier_on(vif->ndev);
442 void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
443 u8 keymgmt, u8 ucipher, u8 auth,
444 u8 assoc_req_len, u8 *assoc_info, u8 apsd_info)
446 u8 *ies = NULL, *wpa_ie = NULL, *pos;
448 struct station_info sinfo;
450 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
452 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
453 struct ieee80211_mgmt *mgmt =
454 (struct ieee80211_mgmt *) assoc_info;
455 if (ieee80211_is_assoc_req(mgmt->frame_control) &&
456 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
457 sizeof(mgmt->u.assoc_req)) {
458 ies = mgmt->u.assoc_req.variable;
459 ies_len = assoc_info + assoc_req_len - ies;
460 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
461 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
462 + sizeof(mgmt->u.reassoc_req)) {
463 ies = mgmt->u.reassoc_req.variable;
464 ies_len = assoc_info + assoc_req_len - ies;
469 while (pos && pos + 1 < ies + ies_len) {
470 if (pos + 2 + pos[1] > ies + ies_len)
472 if (pos[0] == WLAN_EID_RSN)
473 wpa_ie = pos; /* RSN IE */
474 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
476 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
478 wpa_ie = pos; /* WPA IE */
479 else if (pos[5] == 0x04) {
480 wpa_ie = pos; /* WPS IE */
481 break; /* overrides WPA/RSN IE */
483 } else if (pos[0] == 0x44 && wpa_ie == NULL) {
485 * Note: WAPI Parameter Set IE re-uses Element ID that
486 * was officially allocated for BSS AC Access Delay. As
487 * such, we need to be a bit more careful on when
488 * parsing the frame. However, BSS AC Access Delay
489 * element is not supposed to be included in
490 * (Re)Association Request frames, so this should not
493 wpa_ie = pos; /* WAPI IE */
499 ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie,
500 wpa_ie ? 2 + wpa_ie[1] : 0,
501 keymgmt, ucipher, auth, apsd_info);
503 /* send event to application */
504 memset(&sinfo, 0, sizeof(sinfo));
506 /* TODO: sinfo.generation */
508 sinfo.assoc_req_ies = ies;
509 sinfo.assoc_req_ies_len = ies_len;
510 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
512 cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL);
514 netif_wake_queue(vif->ndev);
517 void disconnect_timer_handler(unsigned long ptr)
519 struct net_device *dev = (struct net_device *)ptr;
520 struct ath6kl_vif *vif = netdev_priv(dev);
522 ath6kl_init_profile_info(vif);
523 ath6kl_disconnect(vif);
526 void ath6kl_disconnect(struct ath6kl_vif *vif)
528 if (test_bit(CONNECTED, &vif->flags) ||
529 test_bit(CONNECT_PEND, &vif->flags)) {
530 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
532 * Disconnect command is issued, clear the connect pending
533 * flag. The connected flag will be cleared in
534 * disconnect event notification.
536 clear_bit(CONNECT_PEND, &vif->flags);
540 /* WMI Event handlers */
542 void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver)
544 struct ath6kl *ar = devt;
546 memcpy(ar->mac_addr, datap, ETH_ALEN);
547 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n",
548 __func__, ar->mac_addr);
550 ar->version.wlan_ver = sw_ver;
551 ar->version.abi_ver = abi_ver;
553 snprintf(ar->wiphy->fw_version,
554 sizeof(ar->wiphy->fw_version),
556 (ar->version.wlan_ver & 0xf0000000) >> 28,
557 (ar->version.wlan_ver & 0x0f000000) >> 24,
558 (ar->version.wlan_ver & 0x00ff0000) >> 16,
559 (ar->version.wlan_ver & 0x0000ffff));
561 /* indicate to the waiting thread that the ready event was received */
562 set_bit(WMI_READY, &ar->flag);
563 wake_up(&ar->event_wq);
566 void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
568 struct ath6kl *ar = vif->ar;
569 bool aborted = false;
571 if (status != WMI_SCAN_STATUS_SUCCESS)
574 ath6kl_cfg80211_scan_complete_event(vif, aborted);
576 if (!ar->usr_bss_filter) {
577 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
578 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
582 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
585 void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
586 u16 listen_int, u16 beacon_int,
587 enum network_type net_type, u8 beacon_ie_len,
588 u8 assoc_req_len, u8 assoc_resp_len,
591 struct ath6kl *ar = vif->ar;
593 ath6kl_cfg80211_connect_event(vif, channel, bssid,
594 listen_int, beacon_int,
595 net_type, beacon_ie_len,
596 assoc_req_len, assoc_resp_len,
599 memcpy(vif->bssid, bssid, sizeof(vif->bssid));
600 vif->bss_ch = channel;
602 if ((vif->nw_type == INFRA_NETWORK)) {
603 ar->listen_intvl_b = listen_int;
604 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
605 0, ar->listen_intvl_b);
608 netif_wake_queue(vif->ndev);
610 /* Update connect & link status atomically */
611 spin_lock_bh(&vif->if_lock);
612 set_bit(CONNECTED, &vif->flags);
613 clear_bit(CONNECT_PEND, &vif->flags);
614 netif_carrier_on(vif->ndev);
615 spin_unlock_bh(&vif->if_lock);
617 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
618 vif->reconnect_flag = 0;
620 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
621 memset(ar->node_map, 0, sizeof(ar->node_map));
623 ar->next_ep_id = ENDPOINT_2;
626 if (!ar->usr_bss_filter) {
627 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
628 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
629 CURRENT_BSS_FILTER, 0);
633 void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
635 struct ath6kl_sta *sta;
636 struct ath6kl *ar = vif->ar;
640 * For AP case, keyid will have aid of STA which sent pkt with
641 * MIC error. Use this aid to get MAC & send it to hostapd.
643 if (vif->nw_type == AP_NETWORK) {
644 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
648 ath6kl_dbg(ATH6KL_DBG_TRC,
649 "ap tkip mic error received from aid=%d\n", keyid);
651 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
652 cfg80211_michael_mic_failure(vif->ndev, sta->mac,
653 NL80211_KEYTYPE_PAIRWISE, keyid,
656 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
660 static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
662 struct wmi_target_stats *tgt_stats =
663 (struct wmi_target_stats *) ptr;
664 struct ath6kl *ar = vif->ar;
665 struct target_stats *stats = &vif->target_stats;
666 struct tkip_ccmp_stats *ccmp_stats;
669 if (len < sizeof(*tgt_stats))
672 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
674 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
675 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
676 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
677 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
678 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
679 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
680 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
681 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
682 stats->tx_rts_success_cnt +=
683 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
685 for (ac = 0; ac < WMM_NUM_AC; ac++)
686 stats->tx_pkt_per_ac[ac] +=
687 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
689 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
690 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
691 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
692 stats->tx_mult_retry_cnt +=
693 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
694 stats->tx_rts_fail_cnt +=
695 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
696 stats->tx_ucast_rate =
697 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate));
699 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
700 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
701 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
702 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
703 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
704 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
705 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
706 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
707 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
708 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
709 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
710 stats->rx_key_cache_miss +=
711 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
712 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
713 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
714 stats->rx_ucast_rate =
715 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate));
717 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
719 stats->tkip_local_mic_fail +=
720 le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
721 stats->tkip_cnter_measures_invoked +=
722 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
723 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
725 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
726 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
728 stats->pwr_save_fail_cnt +=
729 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
730 stats->noise_floor_calib =
731 a_sle32_to_cpu(tgt_stats->noise_floor_calib);
733 stats->cs_bmiss_cnt +=
734 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
735 stats->cs_low_rssi_cnt +=
736 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
737 stats->cs_connect_cnt +=
738 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
739 stats->cs_discon_cnt +=
740 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
742 stats->cs_ave_beacon_rssi =
743 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
745 stats->cs_last_roam_msec =
746 tgt_stats->cserv_stats.cs_last_roam_msec;
747 stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
748 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
750 stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
752 stats->wow_pkt_dropped +=
753 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
754 stats->wow_host_pkt_wakeups +=
755 tgt_stats->wow_stats.wow_host_pkt_wakeups;
756 stats->wow_host_evt_wakeups +=
757 tgt_stats->wow_stats.wow_host_evt_wakeups;
758 stats->wow_evt_discarded +=
759 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
761 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
762 clear_bit(STATS_UPDATE_PEND, &vif->flags);
763 wake_up(&ar->event_wq);
767 static void ath6kl_add_le32(__le32 *var, __le32 val)
769 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
772 void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
774 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
775 struct ath6kl *ar = vif->ar;
776 struct wmi_ap_mode_stat *ap = &ar->ap_stats;
777 struct wmi_per_sta_stat *st_ap, *st_p;
780 if (vif->nw_type == AP_NETWORK) {
781 if (len < sizeof(*p))
784 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
785 st_ap = &ap->sta[ac];
788 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
789 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
790 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
791 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
792 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
793 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
794 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
795 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
799 ath6kl_update_target_stats(vif, ptr, len);
803 void ath6kl_wakeup_event(void *dev)
805 struct ath6kl *ar = (struct ath6kl *) dev;
807 wake_up(&ar->event_wq);
810 void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
812 struct ath6kl *ar = (struct ath6kl *) devt;
815 wake_up(&ar->event_wq);
818 void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
820 struct ath6kl_sta *conn;
822 bool psq_empty = false;
823 struct ath6kl *ar = vif->ar;
824 struct ath6kl_mgmt_buff *mgmt_buf;
826 conn = ath6kl_find_sta_by_aid(ar, aid);
831 * Send out a packet queued on ps queue. When the ps queue
832 * becomes empty update the PVB for this station.
834 spin_lock_bh(&conn->psq_lock);
835 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
836 spin_unlock_bh(&conn->psq_lock);
839 /* TODO: Send out a NULL data frame */
842 spin_lock_bh(&conn->psq_lock);
843 if (conn->mgmt_psq_len > 0) {
844 mgmt_buf = list_first_entry(&conn->mgmt_psq,
845 struct ath6kl_mgmt_buff, list);
846 list_del(&mgmt_buf->list);
847 conn->mgmt_psq_len--;
848 spin_unlock_bh(&conn->psq_lock);
850 conn->sta_flags |= STA_PS_POLLED;
851 ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx,
852 mgmt_buf->id, mgmt_buf->freq,
853 mgmt_buf->wait, mgmt_buf->buf,
854 mgmt_buf->len, mgmt_buf->no_cck);
855 conn->sta_flags &= ~STA_PS_POLLED;
858 skb = skb_dequeue(&conn->psq);
859 spin_unlock_bh(&conn->psq_lock);
861 conn->sta_flags |= STA_PS_POLLED;
862 ath6kl_data_tx(skb, vif->ndev);
863 conn->sta_flags &= ~STA_PS_POLLED;
866 spin_lock_bh(&conn->psq_lock);
867 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
868 spin_unlock_bh(&conn->psq_lock);
871 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
874 void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
876 bool mcastq_empty = false;
878 struct ath6kl *ar = vif->ar;
881 * If there are no associated STAs, ignore the DTIM expiry event.
882 * There can be potential race conditions where the last associated
883 * STA may disconnect & before the host could clear the 'Indicate
884 * DTIM' request to the firmware, the firmware would have just
885 * indicated a DTIM expiry event. The race is between 'clear DTIM
886 * expiry cmd' going from the host to the firmware & the DTIM
887 * expiry event happening from the firmware to the host.
889 if (!ar->sta_list_index)
892 spin_lock_bh(&ar->mcastpsq_lock);
893 mcastq_empty = skb_queue_empty(&ar->mcastpsq);
894 spin_unlock_bh(&ar->mcastpsq_lock);
899 /* set the STA flag to dtim_expired for the frame to go out */
900 set_bit(DTIM_EXPIRED, &vif->flags);
902 spin_lock_bh(&ar->mcastpsq_lock);
903 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
904 spin_unlock_bh(&ar->mcastpsq_lock);
906 ath6kl_data_tx(skb, vif->ndev);
908 spin_lock_bh(&ar->mcastpsq_lock);
910 spin_unlock_bh(&ar->mcastpsq_lock);
912 clear_bit(DTIM_EXPIRED, &vif->flags);
914 /* clear the LSB of the BitMapCtl field of the TIM IE */
915 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
918 void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
919 u8 assoc_resp_len, u8 *assoc_info,
920 u16 prot_reason_status)
922 struct ath6kl *ar = vif->ar;
924 if (vif->nw_type == AP_NETWORK) {
925 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
928 /* if no more associated STAs, empty the mcast PS q */
929 if (ar->sta_list_index == 0) {
930 spin_lock_bh(&ar->mcastpsq_lock);
931 skb_queue_purge(&ar->mcastpsq);
932 spin_unlock_bh(&ar->mcastpsq_lock);
934 /* clear the LSB of the TIM IE's BitMapCtl field */
935 if (test_bit(WMI_READY, &ar->flag))
936 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
940 if (!is_broadcast_ether_addr(bssid)) {
941 /* send event to application */
942 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
945 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
946 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
947 clear_bit(CONNECTED, &vif->flags);
952 ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
953 assoc_resp_len, assoc_info,
956 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
958 del_timer(&vif->disconnect_timer);
960 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
963 * If the event is due to disconnect cmd from the host, only they
964 * the target would stop trying to connect. Under any other
965 * condition, target would keep trying to connect.
967 if (reason == DISCONNECT_CMD) {
968 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
969 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
972 set_bit(CONNECT_PEND, &vif->flags);
973 if (((reason == ASSOC_FAILED) &&
974 (prot_reason_status == 0x11)) ||
975 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0)
976 && (vif->reconnect_flag == 1))) {
977 set_bit(CONNECTED, &vif->flags);
982 /* update connect & link status atomically */
983 spin_lock_bh(&vif->if_lock);
984 clear_bit(CONNECTED, &vif->flags);
985 netif_carrier_off(vif->ndev);
986 spin_unlock_bh(&vif->if_lock);
988 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
989 vif->reconnect_flag = 0;
991 if (reason != CSERV_DISCONNECT)
992 ar->user_key_ctrl = 0;
994 netif_stop_queue(vif->ndev);
995 memset(vif->bssid, 0, sizeof(vif->bssid));
998 ath6kl_tx_data_cleanup(ar);
1001 struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
1003 struct ath6kl_vif *vif;
1005 spin_lock_bh(&ar->list_lock);
1006 if (list_empty(&ar->vif_list)) {
1007 spin_unlock_bh(&ar->list_lock);
1011 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
1013 spin_unlock_bh(&ar->list_lock);
1018 static int ath6kl_open(struct net_device *dev)
1020 struct ath6kl_vif *vif = netdev_priv(dev);
1022 set_bit(WLAN_ENABLED, &vif->flags);
1024 if (test_bit(CONNECTED, &vif->flags)) {
1025 netif_carrier_on(dev);
1026 netif_wake_queue(dev);
1028 netif_carrier_off(dev);
1033 static int ath6kl_close(struct net_device *dev)
1035 struct ath6kl_vif *vif = netdev_priv(dev);
1037 netif_stop_queue(dev);
1039 ath6kl_cfg80211_stop(vif);
1041 clear_bit(WLAN_ENABLED, &vif->flags);
1046 static struct net_device_stats *ath6kl_get_stats(struct net_device *dev)
1048 struct ath6kl_vif *vif = netdev_priv(dev);
1050 return &vif->net_stats;
1053 static int ath6kl_set_features(struct net_device *dev,
1054 netdev_features_t features)
1056 struct ath6kl_vif *vif = netdev_priv(dev);
1057 struct ath6kl *ar = vif->ar;
1060 if ((features & NETIF_F_RXCSUM) &&
1061 (ar->rx_meta_ver != WMI_META_VERSION_2)) {
1062 ar->rx_meta_ver = WMI_META_VERSION_2;
1063 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1065 ar->rx_meta_ver, 0, 0);
1067 dev->features = features & ~NETIF_F_RXCSUM;
1070 } else if (!(features & NETIF_F_RXCSUM) &&
1071 (ar->rx_meta_ver == WMI_META_VERSION_2)) {
1072 ar->rx_meta_ver = 0;
1073 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1075 ar->rx_meta_ver, 0, 0);
1077 dev->features = features | NETIF_F_RXCSUM;
1086 static void ath6kl_set_multicast_list(struct net_device *ndev)
1088 struct ath6kl_vif *vif = netdev_priv(ndev);
1089 bool mc_all_on = false, mc_all_off = false;
1090 int mc_count = netdev_mc_count(ndev);
1091 struct netdev_hw_addr *ha;
1093 struct ath6kl_mc_filter *mc_filter, *tmp;
1094 struct list_head mc_filter_new;
1097 if (!test_bit(WMI_READY, &vif->ar->flag) ||
1098 !test_bit(WLAN_ENABLED, &vif->flags))
1101 mc_all_on = !!(ndev->flags & IFF_PROMISC) ||
1102 !!(ndev->flags & IFF_ALLMULTI) ||
1103 !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST);
1105 mc_all_off = !(ndev->flags & IFF_MULTICAST) || mc_count == 0;
1107 if (mc_all_on || mc_all_off) {
1108 /* Enable/disable all multicast */
1109 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast filter\n",
1110 mc_all_on ? "enabling" : "disabling");
1111 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx,
1114 ath6kl_warn("Failed to %s multicast receive\n",
1115 mc_all_on ? "enable" : "disable");
1119 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
1121 netdev_for_each_mc_addr(ha, ndev) {
1122 if (memcmp(ha->addr, mc_filter->hw_addr,
1123 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1131 * Delete the filter which was previously set
1132 * but not in the new request.
1134 ath6kl_dbg(ATH6KL_DBG_TRC,
1135 "Removing %pM from multicast filter\n",
1136 mc_filter->hw_addr);
1137 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1138 vif->fw_vif_idx, mc_filter->hw_addr,
1141 ath6kl_warn("Failed to remove multicast filter:%pM\n",
1142 mc_filter->hw_addr);
1146 list_del(&mc_filter->list);
1151 INIT_LIST_HEAD(&mc_filter_new);
1153 netdev_for_each_mc_addr(ha, ndev) {
1155 list_for_each_entry(mc_filter, &vif->mc_filter, list) {
1156 if (memcmp(ha->addr, mc_filter->hw_addr,
1157 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1164 mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter),
1171 memcpy(mc_filter->hw_addr, ha->addr,
1172 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
1173 /* Set the multicast filter */
1174 ath6kl_dbg(ATH6KL_DBG_TRC,
1175 "Adding %pM to multicast filter list\n",
1176 mc_filter->hw_addr);
1177 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1178 vif->fw_vif_idx, mc_filter->hw_addr,
1181 ath6kl_warn("Failed to add multicast filter :%pM\n",
1182 mc_filter->hw_addr);
1187 list_add_tail(&mc_filter->list, &mc_filter_new);
1192 list_splice_tail(&mc_filter_new, &vif->mc_filter);
1195 static const struct net_device_ops ath6kl_netdev_ops = {
1196 .ndo_open = ath6kl_open,
1197 .ndo_stop = ath6kl_close,
1198 .ndo_start_xmit = ath6kl_data_tx,
1199 .ndo_get_stats = ath6kl_get_stats,
1200 .ndo_set_features = ath6kl_set_features,
1201 .ndo_set_rx_mode = ath6kl_set_multicast_list,
1204 void init_netdev(struct net_device *dev)
1206 dev->netdev_ops = &ath6kl_netdev_ops;
1207 dev->destructor = free_netdev;
1208 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
1210 dev->needed_headroom = ETH_HLEN;
1211 dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) +
1212 sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH
1213 + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES;
1215 dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM;