2 * Copyright (c) 2004-2011 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 struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr)
25 struct ath6kl *ar = vif->ar;
26 struct ath6kl_sta *conn = NULL;
29 max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
31 for (i = 0; i < max_conn; i++) {
32 if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
33 conn = &ar->sta_list[i];
41 struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid)
43 struct ath6kl_sta *conn = NULL;
46 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
47 if (ar->sta_list[ctr].aid == aid) {
48 conn = &ar->sta_list[ctr];
55 static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid,
56 u8 *wpaie, size_t ielen, u8 keymgmt,
57 u8 ucipher, u8 auth, u8 apsd_info)
59 struct ath6kl *ar = vif->ar;
60 struct ath6kl_sta *sta;
65 sta = &ar->sta_list[free_slot];
66 memcpy(sta->mac, mac, ETH_ALEN);
67 if (ielen <= ATH6KL_MAX_IE)
68 memcpy(sta->wpa_ie, wpaie, ielen);
70 sta->keymgmt = keymgmt;
71 sta->ucipher = ucipher;
73 sta->apsd_info = apsd_info;
75 ar->sta_list_index = ar->sta_list_index | (1 << free_slot);
76 ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid);
77 aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn);
80 static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i)
82 struct ath6kl_sta *sta = &ar->sta_list[i];
84 /* empty the queued pkts in the PS queue if any */
85 spin_lock_bh(&sta->psq_lock);
86 skb_queue_purge(&sta->psq);
87 skb_queue_purge(&sta->apsdq);
88 spin_unlock_bh(&sta->psq_lock);
90 memset(&ar->ap_stats.sta[sta->aid - 1], 0,
91 sizeof(struct wmi_per_sta_stat));
92 memset(sta->mac, 0, ETH_ALEN);
93 memset(sta->wpa_ie, 0, ATH6KL_MAX_IE);
97 ar->sta_list_index = ar->sta_list_index & ~(1 << i);
98 aggr_reset_state(sta->aggr_conn);
101 static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
105 if (is_zero_ether_addr(mac))
108 if (is_broadcast_ether_addr(mac)) {
109 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
111 for (i = 0; i < AP_MAX_NUM_STA; i++) {
112 if (!is_zero_ether_addr(ar->sta_list[i].mac)) {
113 ath6kl_sta_cleanup(ar, i);
118 for (i = 0; i < AP_MAX_NUM_STA; i++) {
119 if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) {
120 ath6kl_dbg(ATH6KL_DBG_TRC,
121 "deleting station %pM aid=%d reason=%d\n",
122 mac, ar->sta_list[i].aid, reason);
123 ath6kl_sta_cleanup(ar, i);
133 enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac)
135 struct ath6kl *ar = devt;
136 return ar->ac2ep_map[ac];
139 struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar)
141 struct ath6kl_cookie *cookie;
143 cookie = ar->cookie_list;
144 if (cookie != NULL) {
145 ar->cookie_list = cookie->arc_list_next;
152 void ath6kl_cookie_init(struct ath6kl *ar)
156 ar->cookie_list = NULL;
157 ar->cookie_count = 0;
159 memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem));
161 for (i = 0; i < MAX_COOKIE_NUM; i++)
162 ath6kl_free_cookie(ar, &ar->cookie_mem[i]);
165 void ath6kl_cookie_cleanup(struct ath6kl *ar)
167 ar->cookie_list = NULL;
168 ar->cookie_count = 0;
171 void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie)
178 cookie->arc_list_next = ar->cookie_list;
179 ar->cookie_list = cookie;
184 * Read from the hardware through its diagnostic window. No cooperation
185 * from the firmware is required for this.
187 int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value)
191 ret = ath6kl_hif_diag_read32(ar, address, value);
193 ath6kl_warn("failed to read32 through diagnose window: %d\n",
202 * Write to the ATH6KL through its diagnostic window. No cooperation from
203 * the Target is required for this.
205 int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value)
209 ret = ath6kl_hif_diag_write32(ar, address, value);
212 ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n",
220 int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length)
222 u32 count, *buf = data;
225 if (WARN_ON(length % 4))
228 for (count = 0; count < length / 4; count++, address += 4) {
229 ret = ath6kl_diag_read32(ar, address, &buf[count]);
237 int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length)
243 if (WARN_ON(length % 4))
246 for (count = 0; count < length / 4; count++, address += 4) {
247 ret = ath6kl_diag_write32(ar, address, buf[count]);
255 int ath6kl_read_fwlogs(struct ath6kl *ar)
257 struct ath6kl_dbglog_hdr debug_hdr;
258 struct ath6kl_dbglog_buf debug_buf;
259 u32 address, length, dropped, firstbuf, debug_hdr_addr;
263 buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL);
267 address = TARG_VTOP(ar->target_type,
268 ath6kl_get_hi_item_addr(ar,
269 HI_ITEM(hi_dbglog_hdr)));
271 ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr);
275 /* Get the contents of the ring buffer */
276 if (debug_hdr_addr == 0) {
277 ath6kl_warn("Invalid address for debug_hdr_addr\n");
282 address = TARG_VTOP(ar->target_type, debug_hdr_addr);
283 ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr));
285 address = TARG_VTOP(ar->target_type,
286 le32_to_cpu(debug_hdr.dbuf_addr));
288 dropped = le32_to_cpu(debug_hdr.dropped);
289 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
294 address = TARG_VTOP(ar->target_type,
295 le32_to_cpu(debug_buf.buffer_addr));
296 length = le32_to_cpu(debug_buf.length);
298 if (length != 0 && (le32_to_cpu(debug_buf.length) <=
299 le32_to_cpu(debug_buf.bufsize))) {
300 length = ALIGN(length, 4);
302 ret = ath6kl_diag_read(ar, address,
307 ath6kl_debug_fwlog_event(ar, buf, length);
310 address = TARG_VTOP(ar->target_type,
311 le32_to_cpu(debug_buf.next));
312 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
318 if (WARN_ON(loop == 0)) {
322 } while (address != firstbuf);
330 /* FIXME: move to a better place, target.h? */
331 #define AR6003_RESET_CONTROL_ADDRESS 0x00004000
332 #define AR6004_RESET_CONTROL_ADDRESS 0x00004000
334 void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
335 bool wait_fot_compltn, bool cold_reset)
341 if (target_type != TARGET_TYPE_AR6003 &&
342 target_type != TARGET_TYPE_AR6004)
345 data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) :
346 cpu_to_le32(RESET_CONTROL_MBOX_RST);
348 switch (target_type) {
349 case TARGET_TYPE_AR6003:
350 address = AR6003_RESET_CONTROL_ADDRESS;
352 case TARGET_TYPE_AR6004:
353 address = AR6004_RESET_CONTROL_ADDRESS;
357 status = ath6kl_diag_write32(ar, address, data);
360 ath6kl_err("failed to reset target\n");
363 static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif)
368 for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) {
369 if (vif->wep_key_list[index].key_len) {
370 keyusage = GROUP_USAGE;
371 if (index == vif->def_txkey_index)
372 keyusage |= TX_USAGE;
374 ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx,
378 vif->wep_key_list[index].key_len,
380 vif->wep_key_list[index].key,
381 KEY_OP_INIT_VAL, NULL,
387 void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
389 struct ath6kl *ar = vif->ar;
390 struct ath6kl_req_key *ik;
392 u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
394 ik = &ar->ap_mode_bkey;
396 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
398 switch (vif->auth_mode) {
400 if (vif->prwise_crypto == WEP_CRYPT)
401 ath6kl_install_static_wep_keys(vif);
402 if (!ik->valid || ik->key_type != WAPI_CRYPT)
404 /* for WAPI, we need to set the delayed group key, continue: */
407 case (WPA_PSK_AUTH | WPA2_PSK_AUTH):
411 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for "
412 "the initial group key for AP mode\n");
413 memset(key_rsc, 0, sizeof(key_rsc));
414 res = ath6kl_wmi_addkey_cmd(
415 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
416 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
418 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
420 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed "
421 "addkey failed: %d\n", res);
426 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
427 set_bit(CONNECTED, &vif->flags);
428 netif_carrier_on(vif->ndev);
431 void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
432 u8 keymgmt, u8 ucipher, u8 auth,
433 u8 assoc_req_len, u8 *assoc_info, u8 apsd_info)
435 u8 *ies = NULL, *wpa_ie = NULL, *pos;
437 struct station_info sinfo;
439 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
441 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
442 struct ieee80211_mgmt *mgmt =
443 (struct ieee80211_mgmt *) assoc_info;
444 if (ieee80211_is_assoc_req(mgmt->frame_control) &&
445 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
446 sizeof(mgmt->u.assoc_req)) {
447 ies = mgmt->u.assoc_req.variable;
448 ies_len = assoc_info + assoc_req_len - ies;
449 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
450 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
451 + sizeof(mgmt->u.reassoc_req)) {
452 ies = mgmt->u.reassoc_req.variable;
453 ies_len = assoc_info + assoc_req_len - ies;
458 while (pos && pos + 1 < ies + ies_len) {
459 if (pos + 2 + pos[1] > ies + ies_len)
461 if (pos[0] == WLAN_EID_RSN)
462 wpa_ie = pos; /* RSN IE */
463 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
465 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
467 wpa_ie = pos; /* WPA IE */
468 else if (pos[5] == 0x04) {
469 wpa_ie = pos; /* WPS IE */
470 break; /* overrides WPA/RSN IE */
472 } else if (pos[0] == 0x44 && wpa_ie == NULL) {
474 * Note: WAPI Parameter Set IE re-uses Element ID that
475 * was officially allocated for BSS AC Access Delay. As
476 * such, we need to be a bit more careful on when
477 * parsing the frame. However, BSS AC Access Delay
478 * element is not supposed to be included in
479 * (Re)Association Request frames, so this should not
482 wpa_ie = pos; /* WAPI IE */
488 ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie,
489 wpa_ie ? 2 + wpa_ie[1] : 0,
490 keymgmt, ucipher, auth, apsd_info);
492 /* send event to application */
493 memset(&sinfo, 0, sizeof(sinfo));
495 /* TODO: sinfo.generation */
497 sinfo.assoc_req_ies = ies;
498 sinfo.assoc_req_ies_len = ies_len;
499 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
501 cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL);
503 netif_wake_queue(vif->ndev);
506 void disconnect_timer_handler(unsigned long ptr)
508 struct net_device *dev = (struct net_device *)ptr;
509 struct ath6kl_vif *vif = netdev_priv(dev);
511 ath6kl_init_profile_info(vif);
512 ath6kl_disconnect(vif);
515 void ath6kl_disconnect(struct ath6kl_vif *vif)
517 if (test_bit(CONNECTED, &vif->flags) ||
518 test_bit(CONNECT_PEND, &vif->flags)) {
519 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
521 * Disconnect command is issued, clear the connect pending
522 * flag. The connected flag will be cleared in
523 * disconnect event notification.
525 clear_bit(CONNECT_PEND, &vif->flags);
529 /* WMI Event handlers */
531 void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver)
533 struct ath6kl *ar = devt;
535 memcpy(ar->mac_addr, datap, ETH_ALEN);
536 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n",
537 __func__, ar->mac_addr);
539 ar->version.wlan_ver = sw_ver;
540 ar->version.abi_ver = abi_ver;
542 snprintf(ar->wiphy->fw_version,
543 sizeof(ar->wiphy->fw_version),
545 (ar->version.wlan_ver & 0xf0000000) >> 28,
546 (ar->version.wlan_ver & 0x0f000000) >> 24,
547 (ar->version.wlan_ver & 0x00ff0000) >> 16,
548 (ar->version.wlan_ver & 0x0000ffff));
550 /* indicate to the waiting thread that the ready event was received */
551 set_bit(WMI_READY, &ar->flag);
552 wake_up(&ar->event_wq);
555 void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
557 struct ath6kl *ar = vif->ar;
558 bool aborted = false;
560 if (status != WMI_SCAN_STATUS_SUCCESS)
563 ath6kl_cfg80211_scan_complete_event(vif, aborted);
565 if (!ar->usr_bss_filter) {
566 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
567 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
571 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
574 void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
575 u16 listen_int, u16 beacon_int,
576 enum network_type net_type, u8 beacon_ie_len,
577 u8 assoc_req_len, u8 assoc_resp_len,
580 struct ath6kl *ar = vif->ar;
582 ath6kl_cfg80211_connect_event(vif, channel, bssid,
583 listen_int, beacon_int,
584 net_type, beacon_ie_len,
585 assoc_req_len, assoc_resp_len,
588 memcpy(vif->bssid, bssid, sizeof(vif->bssid));
589 vif->bss_ch = channel;
591 if ((vif->nw_type == INFRA_NETWORK)) {
592 ar->listen_intvl_b = listen_int;
593 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
594 0, ar->listen_intvl_b);
597 netif_wake_queue(vif->ndev);
599 /* Update connect & link status atomically */
600 spin_lock_bh(&vif->if_lock);
601 set_bit(CONNECTED, &vif->flags);
602 clear_bit(CONNECT_PEND, &vif->flags);
603 netif_carrier_on(vif->ndev);
604 spin_unlock_bh(&vif->if_lock);
606 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
607 vif->reconnect_flag = 0;
609 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
610 memset(ar->node_map, 0, sizeof(ar->node_map));
612 ar->next_ep_id = ENDPOINT_2;
615 if (!ar->usr_bss_filter) {
616 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
617 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
618 CURRENT_BSS_FILTER, 0);
622 void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
624 struct ath6kl_sta *sta;
625 struct ath6kl *ar = vif->ar;
629 * For AP case, keyid will have aid of STA which sent pkt with
630 * MIC error. Use this aid to get MAC & send it to hostapd.
632 if (vif->nw_type == AP_NETWORK) {
633 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
637 ath6kl_dbg(ATH6KL_DBG_TRC,
638 "ap tkip mic error received from aid=%d\n", keyid);
640 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
641 cfg80211_michael_mic_failure(vif->ndev, sta->mac,
642 NL80211_KEYTYPE_PAIRWISE, keyid,
645 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
649 static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
651 struct wmi_target_stats *tgt_stats =
652 (struct wmi_target_stats *) ptr;
653 struct ath6kl *ar = vif->ar;
654 struct target_stats *stats = &vif->target_stats;
655 struct tkip_ccmp_stats *ccmp_stats;
658 if (len < sizeof(*tgt_stats))
661 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
663 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
664 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
665 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
666 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
667 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
668 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
669 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
670 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
671 stats->tx_rts_success_cnt +=
672 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
674 for (ac = 0; ac < WMM_NUM_AC; ac++)
675 stats->tx_pkt_per_ac[ac] +=
676 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
678 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
679 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
680 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
681 stats->tx_mult_retry_cnt +=
682 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
683 stats->tx_rts_fail_cnt +=
684 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
685 stats->tx_ucast_rate =
686 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate));
688 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
689 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
690 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
691 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
692 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
693 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
694 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
695 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
696 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
697 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
698 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
699 stats->rx_key_cache_miss +=
700 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
701 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
702 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
703 stats->rx_ucast_rate =
704 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate));
706 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
708 stats->tkip_local_mic_fail +=
709 le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
710 stats->tkip_cnter_measures_invoked +=
711 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
712 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
714 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
715 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
717 stats->pwr_save_fail_cnt +=
718 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
719 stats->noise_floor_calib =
720 a_sle32_to_cpu(tgt_stats->noise_floor_calib);
722 stats->cs_bmiss_cnt +=
723 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
724 stats->cs_low_rssi_cnt +=
725 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
726 stats->cs_connect_cnt +=
727 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
728 stats->cs_discon_cnt +=
729 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
731 stats->cs_ave_beacon_rssi =
732 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
734 stats->cs_last_roam_msec =
735 tgt_stats->cserv_stats.cs_last_roam_msec;
736 stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
737 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
739 stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
741 stats->wow_pkt_dropped +=
742 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
743 stats->wow_host_pkt_wakeups +=
744 tgt_stats->wow_stats.wow_host_pkt_wakeups;
745 stats->wow_host_evt_wakeups +=
746 tgt_stats->wow_stats.wow_host_evt_wakeups;
747 stats->wow_evt_discarded +=
748 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
750 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
751 clear_bit(STATS_UPDATE_PEND, &vif->flags);
752 wake_up(&ar->event_wq);
756 static void ath6kl_add_le32(__le32 *var, __le32 val)
758 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
761 void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
763 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
764 struct ath6kl *ar = vif->ar;
765 struct wmi_ap_mode_stat *ap = &ar->ap_stats;
766 struct wmi_per_sta_stat *st_ap, *st_p;
769 if (vif->nw_type == AP_NETWORK) {
770 if (len < sizeof(*p))
773 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
774 st_ap = &ap->sta[ac];
777 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
778 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
779 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
780 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
781 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
782 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
783 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
784 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
788 ath6kl_update_target_stats(vif, ptr, len);
792 void ath6kl_wakeup_event(void *dev)
794 struct ath6kl *ar = (struct ath6kl *) dev;
796 wake_up(&ar->event_wq);
799 void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
801 struct ath6kl *ar = (struct ath6kl *) devt;
804 wake_up(&ar->event_wq);
807 void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
809 struct ath6kl_sta *conn;
811 bool psq_empty = false;
812 struct ath6kl *ar = vif->ar;
814 conn = ath6kl_find_sta_by_aid(ar, aid);
819 * Send out a packet queued on ps queue. When the ps queue
820 * becomes empty update the PVB for this station.
822 spin_lock_bh(&conn->psq_lock);
823 psq_empty = skb_queue_empty(&conn->psq);
824 spin_unlock_bh(&conn->psq_lock);
827 /* TODO: Send out a NULL data frame */
830 spin_lock_bh(&conn->psq_lock);
831 skb = skb_dequeue(&conn->psq);
832 spin_unlock_bh(&conn->psq_lock);
834 conn->sta_flags |= STA_PS_POLLED;
835 ath6kl_data_tx(skb, vif->ndev);
836 conn->sta_flags &= ~STA_PS_POLLED;
838 spin_lock_bh(&conn->psq_lock);
839 psq_empty = skb_queue_empty(&conn->psq);
840 spin_unlock_bh(&conn->psq_lock);
843 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
846 void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
848 bool mcastq_empty = false;
850 struct ath6kl *ar = vif->ar;
853 * If there are no associated STAs, ignore the DTIM expiry event.
854 * There can be potential race conditions where the last associated
855 * STA may disconnect & before the host could clear the 'Indicate
856 * DTIM' request to the firmware, the firmware would have just
857 * indicated a DTIM expiry event. The race is between 'clear DTIM
858 * expiry cmd' going from the host to the firmware & the DTIM
859 * expiry event happening from the firmware to the host.
861 if (!ar->sta_list_index)
864 spin_lock_bh(&ar->mcastpsq_lock);
865 mcastq_empty = skb_queue_empty(&ar->mcastpsq);
866 spin_unlock_bh(&ar->mcastpsq_lock);
871 /* set the STA flag to dtim_expired for the frame to go out */
872 set_bit(DTIM_EXPIRED, &vif->flags);
874 spin_lock_bh(&ar->mcastpsq_lock);
875 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
876 spin_unlock_bh(&ar->mcastpsq_lock);
878 ath6kl_data_tx(skb, vif->ndev);
880 spin_lock_bh(&ar->mcastpsq_lock);
882 spin_unlock_bh(&ar->mcastpsq_lock);
884 clear_bit(DTIM_EXPIRED, &vif->flags);
886 /* clear the LSB of the BitMapCtl field of the TIM IE */
887 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
890 void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
891 u8 assoc_resp_len, u8 *assoc_info,
892 u16 prot_reason_status)
894 struct ath6kl *ar = vif->ar;
896 if (vif->nw_type == AP_NETWORK) {
897 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
900 /* if no more associated STAs, empty the mcast PS q */
901 if (ar->sta_list_index == 0) {
902 spin_lock_bh(&ar->mcastpsq_lock);
903 skb_queue_purge(&ar->mcastpsq);
904 spin_unlock_bh(&ar->mcastpsq_lock);
906 /* clear the LSB of the TIM IE's BitMapCtl field */
907 if (test_bit(WMI_READY, &ar->flag))
908 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
912 if (!is_broadcast_ether_addr(bssid)) {
913 /* send event to application */
914 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
917 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
918 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
919 clear_bit(CONNECTED, &vif->flags);
924 ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
925 assoc_resp_len, assoc_info,
928 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
930 del_timer(&vif->disconnect_timer);
932 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
935 * If the event is due to disconnect cmd from the host, only they
936 * the target would stop trying to connect. Under any other
937 * condition, target would keep trying to connect.
939 if (reason == DISCONNECT_CMD) {
940 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
941 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
944 set_bit(CONNECT_PEND, &vif->flags);
945 if (((reason == ASSOC_FAILED) &&
946 (prot_reason_status == 0x11)) ||
947 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0)
948 && (vif->reconnect_flag == 1))) {
949 set_bit(CONNECTED, &vif->flags);
954 /* update connect & link status atomically */
955 spin_lock_bh(&vif->if_lock);
956 clear_bit(CONNECTED, &vif->flags);
957 netif_carrier_off(vif->ndev);
958 spin_unlock_bh(&vif->if_lock);
960 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
961 vif->reconnect_flag = 0;
963 if (reason != CSERV_DISCONNECT)
964 ar->user_key_ctrl = 0;
966 netif_stop_queue(vif->ndev);
967 memset(vif->bssid, 0, sizeof(vif->bssid));
970 ath6kl_tx_data_cleanup(ar);
973 struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
975 struct ath6kl_vif *vif;
977 spin_lock_bh(&ar->list_lock);
978 if (list_empty(&ar->vif_list)) {
979 spin_unlock_bh(&ar->list_lock);
983 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
985 spin_unlock_bh(&ar->list_lock);
990 static int ath6kl_open(struct net_device *dev)
992 struct ath6kl_vif *vif = netdev_priv(dev);
994 set_bit(WLAN_ENABLED, &vif->flags);
996 if (test_bit(CONNECTED, &vif->flags)) {
997 netif_carrier_on(dev);
998 netif_wake_queue(dev);
1000 netif_carrier_off(dev);
1005 static int ath6kl_close(struct net_device *dev)
1007 struct ath6kl_vif *vif = netdev_priv(dev);
1009 netif_stop_queue(dev);
1011 ath6kl_cfg80211_stop(vif);
1013 clear_bit(WLAN_ENABLED, &vif->flags);
1018 static struct net_device_stats *ath6kl_get_stats(struct net_device *dev)
1020 struct ath6kl_vif *vif = netdev_priv(dev);
1022 return &vif->net_stats;
1025 static int ath6kl_set_features(struct net_device *dev,
1026 netdev_features_t features)
1028 struct ath6kl_vif *vif = netdev_priv(dev);
1029 struct ath6kl *ar = vif->ar;
1032 if ((features & NETIF_F_RXCSUM) &&
1033 (ar->rx_meta_ver != WMI_META_VERSION_2)) {
1034 ar->rx_meta_ver = WMI_META_VERSION_2;
1035 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1037 ar->rx_meta_ver, 0, 0);
1039 dev->features = features & ~NETIF_F_RXCSUM;
1042 } else if (!(features & NETIF_F_RXCSUM) &&
1043 (ar->rx_meta_ver == WMI_META_VERSION_2)) {
1044 ar->rx_meta_ver = 0;
1045 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1047 ar->rx_meta_ver, 0, 0);
1049 dev->features = features | NETIF_F_RXCSUM;
1058 static void ath6kl_set_multicast_list(struct net_device *ndev)
1060 struct ath6kl_vif *vif = netdev_priv(ndev);
1061 bool mc_all_on = false, mc_all_off = false;
1062 int mc_count = netdev_mc_count(ndev);
1063 struct netdev_hw_addr *ha;
1065 struct ath6kl_mc_filter *mc_filter, *tmp;
1066 struct list_head mc_filter_new;
1069 if (!test_bit(WMI_READY, &vif->ar->flag) ||
1070 !test_bit(WLAN_ENABLED, &vif->flags))
1073 mc_all_on = !!(ndev->flags & IFF_PROMISC) ||
1074 !!(ndev->flags & IFF_ALLMULTI) ||
1075 !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST);
1077 mc_all_off = !(ndev->flags & IFF_MULTICAST) || mc_count == 0;
1079 if (mc_all_on || mc_all_off) {
1080 /* Enable/disable all multicast */
1081 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast filter\n",
1082 mc_all_on ? "enabling" : "disabling");
1083 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx,
1086 ath6kl_warn("Failed to %s multicast receive\n",
1087 mc_all_on ? "enable" : "disable");
1091 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
1093 netdev_for_each_mc_addr(ha, ndev) {
1094 if (memcmp(ha->addr, mc_filter->hw_addr,
1095 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1103 * Delete the filter which was previously set
1104 * but not in the new request.
1106 ath6kl_dbg(ATH6KL_DBG_TRC,
1107 "Removing %pM from multicast filter\n",
1108 mc_filter->hw_addr);
1109 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1110 vif->fw_vif_idx, mc_filter->hw_addr,
1113 ath6kl_warn("Failed to remove multicast filter:%pM\n",
1114 mc_filter->hw_addr);
1118 list_del(&mc_filter->list);
1123 INIT_LIST_HEAD(&mc_filter_new);
1125 netdev_for_each_mc_addr(ha, ndev) {
1127 list_for_each_entry(mc_filter, &vif->mc_filter, list) {
1128 if (memcmp(ha->addr, mc_filter->hw_addr,
1129 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1136 mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter),
1143 memcpy(mc_filter->hw_addr, ha->addr,
1144 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
1145 /* Set the multicast filter */
1146 ath6kl_dbg(ATH6KL_DBG_TRC,
1147 "Adding %pM to multicast filter list\n",
1148 mc_filter->hw_addr);
1149 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1150 vif->fw_vif_idx, mc_filter->hw_addr,
1153 ath6kl_warn("Failed to add multicast filter :%pM\n",
1154 mc_filter->hw_addr);
1159 list_add_tail(&mc_filter->list, &mc_filter_new);
1164 list_splice_tail(&mc_filter_new, &vif->mc_filter);
1167 static const struct net_device_ops ath6kl_netdev_ops = {
1168 .ndo_open = ath6kl_open,
1169 .ndo_stop = ath6kl_close,
1170 .ndo_start_xmit = ath6kl_data_tx,
1171 .ndo_get_stats = ath6kl_get_stats,
1172 .ndo_set_features = ath6kl_set_features,
1173 .ndo_set_rx_mode = ath6kl_set_multicast_list,
1176 void init_netdev(struct net_device *dev)
1178 dev->netdev_ops = &ath6kl_netdev_ops;
1179 dev->destructor = free_netdev;
1180 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
1182 dev->needed_headroom = ETH_HLEN;
1183 dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) +
1184 sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH
1185 + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES;