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 ath6kl_wmi_listeninterval_cmd(ar
->wmi
, vif
->fw_vif_idx
,
604 vif
->listen_intvl_t
, 0);
606 netif_wake_queue(vif
->ndev
);
608 /* Update connect & link status atomically */
609 spin_lock_bh(&vif
->if_lock
);
610 set_bit(CONNECTED
, &vif
->flags
);
611 clear_bit(CONNECT_PEND
, &vif
->flags
);
612 netif_carrier_on(vif
->ndev
);
613 spin_unlock_bh(&vif
->if_lock
);
615 aggr_reset_state(vif
->aggr_cntxt
->aggr_conn
);
616 vif
->reconnect_flag
= 0;
618 if ((vif
->nw_type
== ADHOC_NETWORK
) && ar
->ibss_ps_enable
) {
619 memset(ar
->node_map
, 0, sizeof(ar
->node_map
));
621 ar
->next_ep_id
= ENDPOINT_2
;
624 if (!ar
->usr_bss_filter
) {
625 set_bit(CLEAR_BSSFILTER_ON_BEACON
, &vif
->flags
);
626 ath6kl_wmi_bssfilter_cmd(ar
->wmi
, vif
->fw_vif_idx
,
627 CURRENT_BSS_FILTER
, 0);
631 void ath6kl_tkip_micerr_event(struct ath6kl_vif
*vif
, u8 keyid
, bool ismcast
)
633 struct ath6kl_sta
*sta
;
634 struct ath6kl
*ar
= vif
->ar
;
638 * For AP case, keyid will have aid of STA which sent pkt with
639 * MIC error. Use this aid to get MAC & send it to hostapd.
641 if (vif
->nw_type
== AP_NETWORK
) {
642 sta
= ath6kl_find_sta_by_aid(ar
, (keyid
>> 2));
646 ath6kl_dbg(ATH6KL_DBG_TRC
,
647 "ap tkip mic error received from aid=%d\n", keyid
);
649 memset(tsc
, 0, sizeof(tsc
)); /* FIX: get correct TSC */
650 cfg80211_michael_mic_failure(vif
->ndev
, sta
->mac
,
651 NL80211_KEYTYPE_PAIRWISE
, keyid
,
654 ath6kl_cfg80211_tkip_micerr_event(vif
, keyid
, ismcast
);
658 static void ath6kl_update_target_stats(struct ath6kl_vif
*vif
, u8
*ptr
, u32 len
)
660 struct wmi_target_stats
*tgt_stats
=
661 (struct wmi_target_stats
*) ptr
;
662 struct ath6kl
*ar
= vif
->ar
;
663 struct target_stats
*stats
= &vif
->target_stats
;
664 struct tkip_ccmp_stats
*ccmp_stats
;
667 if (len
< sizeof(*tgt_stats
))
670 ath6kl_dbg(ATH6KL_DBG_TRC
, "updating target stats\n");
672 stats
->tx_pkt
+= le32_to_cpu(tgt_stats
->stats
.tx
.pkt
);
673 stats
->tx_byte
+= le32_to_cpu(tgt_stats
->stats
.tx
.byte
);
674 stats
->tx_ucast_pkt
+= le32_to_cpu(tgt_stats
->stats
.tx
.ucast_pkt
);
675 stats
->tx_ucast_byte
+= le32_to_cpu(tgt_stats
->stats
.tx
.ucast_byte
);
676 stats
->tx_mcast_pkt
+= le32_to_cpu(tgt_stats
->stats
.tx
.mcast_pkt
);
677 stats
->tx_mcast_byte
+= le32_to_cpu(tgt_stats
->stats
.tx
.mcast_byte
);
678 stats
->tx_bcast_pkt
+= le32_to_cpu(tgt_stats
->stats
.tx
.bcast_pkt
);
679 stats
->tx_bcast_byte
+= le32_to_cpu(tgt_stats
->stats
.tx
.bcast_byte
);
680 stats
->tx_rts_success_cnt
+=
681 le32_to_cpu(tgt_stats
->stats
.tx
.rts_success_cnt
);
683 for (ac
= 0; ac
< WMM_NUM_AC
; ac
++)
684 stats
->tx_pkt_per_ac
[ac
] +=
685 le32_to_cpu(tgt_stats
->stats
.tx
.pkt_per_ac
[ac
]);
687 stats
->tx_err
+= le32_to_cpu(tgt_stats
->stats
.tx
.err
);
688 stats
->tx_fail_cnt
+= le32_to_cpu(tgt_stats
->stats
.tx
.fail_cnt
);
689 stats
->tx_retry_cnt
+= le32_to_cpu(tgt_stats
->stats
.tx
.retry_cnt
);
690 stats
->tx_mult_retry_cnt
+=
691 le32_to_cpu(tgt_stats
->stats
.tx
.mult_retry_cnt
);
692 stats
->tx_rts_fail_cnt
+=
693 le32_to_cpu(tgt_stats
->stats
.tx
.rts_fail_cnt
);
694 stats
->tx_ucast_rate
=
695 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats
->stats
.tx
.ucast_rate
));
697 stats
->rx_pkt
+= le32_to_cpu(tgt_stats
->stats
.rx
.pkt
);
698 stats
->rx_byte
+= le32_to_cpu(tgt_stats
->stats
.rx
.byte
);
699 stats
->rx_ucast_pkt
+= le32_to_cpu(tgt_stats
->stats
.rx
.ucast_pkt
);
700 stats
->rx_ucast_byte
+= le32_to_cpu(tgt_stats
->stats
.rx
.ucast_byte
);
701 stats
->rx_mcast_pkt
+= le32_to_cpu(tgt_stats
->stats
.rx
.mcast_pkt
);
702 stats
->rx_mcast_byte
+= le32_to_cpu(tgt_stats
->stats
.rx
.mcast_byte
);
703 stats
->rx_bcast_pkt
+= le32_to_cpu(tgt_stats
->stats
.rx
.bcast_pkt
);
704 stats
->rx_bcast_byte
+= le32_to_cpu(tgt_stats
->stats
.rx
.bcast_byte
);
705 stats
->rx_frgment_pkt
+= le32_to_cpu(tgt_stats
->stats
.rx
.frgment_pkt
);
706 stats
->rx_err
+= le32_to_cpu(tgt_stats
->stats
.rx
.err
);
707 stats
->rx_crc_err
+= le32_to_cpu(tgt_stats
->stats
.rx
.crc_err
);
708 stats
->rx_key_cache_miss
+=
709 le32_to_cpu(tgt_stats
->stats
.rx
.key_cache_miss
);
710 stats
->rx_decrypt_err
+= le32_to_cpu(tgt_stats
->stats
.rx
.decrypt_err
);
711 stats
->rx_dupl_frame
+= le32_to_cpu(tgt_stats
->stats
.rx
.dupl_frame
);
712 stats
->rx_ucast_rate
=
713 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats
->stats
.rx
.ucast_rate
));
715 ccmp_stats
= &tgt_stats
->stats
.tkip_ccmp_stats
;
717 stats
->tkip_local_mic_fail
+=
718 le32_to_cpu(ccmp_stats
->tkip_local_mic_fail
);
719 stats
->tkip_cnter_measures_invoked
+=
720 le32_to_cpu(ccmp_stats
->tkip_cnter_measures_invoked
);
721 stats
->tkip_fmt_err
+= le32_to_cpu(ccmp_stats
->tkip_fmt_err
);
723 stats
->ccmp_fmt_err
+= le32_to_cpu(ccmp_stats
->ccmp_fmt_err
);
724 stats
->ccmp_replays
+= le32_to_cpu(ccmp_stats
->ccmp_replays
);
726 stats
->pwr_save_fail_cnt
+=
727 le32_to_cpu(tgt_stats
->pm_stats
.pwr_save_failure_cnt
);
728 stats
->noise_floor_calib
=
729 a_sle32_to_cpu(tgt_stats
->noise_floor_calib
);
731 stats
->cs_bmiss_cnt
+=
732 le32_to_cpu(tgt_stats
->cserv_stats
.cs_bmiss_cnt
);
733 stats
->cs_low_rssi_cnt
+=
734 le32_to_cpu(tgt_stats
->cserv_stats
.cs_low_rssi_cnt
);
735 stats
->cs_connect_cnt
+=
736 le16_to_cpu(tgt_stats
->cserv_stats
.cs_connect_cnt
);
737 stats
->cs_discon_cnt
+=
738 le16_to_cpu(tgt_stats
->cserv_stats
.cs_discon_cnt
);
740 stats
->cs_ave_beacon_rssi
=
741 a_sle16_to_cpu(tgt_stats
->cserv_stats
.cs_ave_beacon_rssi
);
743 stats
->cs_last_roam_msec
=
744 tgt_stats
->cserv_stats
.cs_last_roam_msec
;
745 stats
->cs_snr
= tgt_stats
->cserv_stats
.cs_snr
;
746 stats
->cs_rssi
= a_sle16_to_cpu(tgt_stats
->cserv_stats
.cs_rssi
);
748 stats
->lq_val
= le32_to_cpu(tgt_stats
->lq_val
);
750 stats
->wow_pkt_dropped
+=
751 le32_to_cpu(tgt_stats
->wow_stats
.wow_pkt_dropped
);
752 stats
->wow_host_pkt_wakeups
+=
753 tgt_stats
->wow_stats
.wow_host_pkt_wakeups
;
754 stats
->wow_host_evt_wakeups
+=
755 tgt_stats
->wow_stats
.wow_host_evt_wakeups
;
756 stats
->wow_evt_discarded
+=
757 le16_to_cpu(tgt_stats
->wow_stats
.wow_evt_discarded
);
759 if (test_bit(STATS_UPDATE_PEND
, &vif
->flags
)) {
760 clear_bit(STATS_UPDATE_PEND
, &vif
->flags
);
761 wake_up(&ar
->event_wq
);
765 static void ath6kl_add_le32(__le32
*var
, __le32 val
)
767 *var
= cpu_to_le32(le32_to_cpu(*var
) + le32_to_cpu(val
));
770 void ath6kl_tgt_stats_event(struct ath6kl_vif
*vif
, u8
*ptr
, u32 len
)
772 struct wmi_ap_mode_stat
*p
= (struct wmi_ap_mode_stat
*) ptr
;
773 struct ath6kl
*ar
= vif
->ar
;
774 struct wmi_ap_mode_stat
*ap
= &ar
->ap_stats
;
775 struct wmi_per_sta_stat
*st_ap
, *st_p
;
778 if (vif
->nw_type
== AP_NETWORK
) {
779 if (len
< sizeof(*p
))
782 for (ac
= 0; ac
< AP_MAX_NUM_STA
; ac
++) {
783 st_ap
= &ap
->sta
[ac
];
786 ath6kl_add_le32(&st_ap
->tx_bytes
, st_p
->tx_bytes
);
787 ath6kl_add_le32(&st_ap
->tx_pkts
, st_p
->tx_pkts
);
788 ath6kl_add_le32(&st_ap
->tx_error
, st_p
->tx_error
);
789 ath6kl_add_le32(&st_ap
->tx_discard
, st_p
->tx_discard
);
790 ath6kl_add_le32(&st_ap
->rx_bytes
, st_p
->rx_bytes
);
791 ath6kl_add_le32(&st_ap
->rx_pkts
, st_p
->rx_pkts
);
792 ath6kl_add_le32(&st_ap
->rx_error
, st_p
->rx_error
);
793 ath6kl_add_le32(&st_ap
->rx_discard
, st_p
->rx_discard
);
797 ath6kl_update_target_stats(vif
, ptr
, len
);
801 void ath6kl_wakeup_event(void *dev
)
803 struct ath6kl
*ar
= (struct ath6kl
*) dev
;
805 wake_up(&ar
->event_wq
);
808 void ath6kl_txpwr_rx_evt(void *devt
, u8 tx_pwr
)
810 struct ath6kl
*ar
= (struct ath6kl
*) devt
;
813 wake_up(&ar
->event_wq
);
816 void ath6kl_pspoll_event(struct ath6kl_vif
*vif
, u8 aid
)
818 struct ath6kl_sta
*conn
;
820 bool psq_empty
= false;
821 struct ath6kl
*ar
= vif
->ar
;
822 struct ath6kl_mgmt_buff
*mgmt_buf
;
824 conn
= ath6kl_find_sta_by_aid(ar
, aid
);
829 * Send out a packet queued on ps queue. When the ps queue
830 * becomes empty update the PVB for this station.
832 spin_lock_bh(&conn
->psq_lock
);
833 psq_empty
= skb_queue_empty(&conn
->psq
) && (conn
->mgmt_psq_len
== 0);
834 spin_unlock_bh(&conn
->psq_lock
);
837 /* TODO: Send out a NULL data frame */
840 spin_lock_bh(&conn
->psq_lock
);
841 if (conn
->mgmt_psq_len
> 0) {
842 mgmt_buf
= list_first_entry(&conn
->mgmt_psq
,
843 struct ath6kl_mgmt_buff
, list
);
844 list_del(&mgmt_buf
->list
);
845 conn
->mgmt_psq_len
--;
846 spin_unlock_bh(&conn
->psq_lock
);
848 conn
->sta_flags
|= STA_PS_POLLED
;
849 ath6kl_wmi_send_mgmt_cmd(ar
->wmi
, vif
->fw_vif_idx
,
850 mgmt_buf
->id
, mgmt_buf
->freq
,
851 mgmt_buf
->wait
, mgmt_buf
->buf
,
852 mgmt_buf
->len
, mgmt_buf
->no_cck
);
853 conn
->sta_flags
&= ~STA_PS_POLLED
;
856 skb
= skb_dequeue(&conn
->psq
);
857 spin_unlock_bh(&conn
->psq_lock
);
859 conn
->sta_flags
|= STA_PS_POLLED
;
860 ath6kl_data_tx(skb
, vif
->ndev
);
861 conn
->sta_flags
&= ~STA_PS_POLLED
;
864 spin_lock_bh(&conn
->psq_lock
);
865 psq_empty
= skb_queue_empty(&conn
->psq
) && (conn
->mgmt_psq_len
== 0);
866 spin_unlock_bh(&conn
->psq_lock
);
869 ath6kl_wmi_set_pvb_cmd(ar
->wmi
, vif
->fw_vif_idx
, conn
->aid
, 0);
872 void ath6kl_dtimexpiry_event(struct ath6kl_vif
*vif
)
874 bool mcastq_empty
= false;
876 struct ath6kl
*ar
= vif
->ar
;
879 * If there are no associated STAs, ignore the DTIM expiry event.
880 * There can be potential race conditions where the last associated
881 * STA may disconnect & before the host could clear the 'Indicate
882 * DTIM' request to the firmware, the firmware would have just
883 * indicated a DTIM expiry event. The race is between 'clear DTIM
884 * expiry cmd' going from the host to the firmware & the DTIM
885 * expiry event happening from the firmware to the host.
887 if (!ar
->sta_list_index
)
890 spin_lock_bh(&ar
->mcastpsq_lock
);
891 mcastq_empty
= skb_queue_empty(&ar
->mcastpsq
);
892 spin_unlock_bh(&ar
->mcastpsq_lock
);
897 /* set the STA flag to dtim_expired for the frame to go out */
898 set_bit(DTIM_EXPIRED
, &vif
->flags
);
900 spin_lock_bh(&ar
->mcastpsq_lock
);
901 while ((skb
= skb_dequeue(&ar
->mcastpsq
)) != NULL
) {
902 spin_unlock_bh(&ar
->mcastpsq_lock
);
904 ath6kl_data_tx(skb
, vif
->ndev
);
906 spin_lock_bh(&ar
->mcastpsq_lock
);
908 spin_unlock_bh(&ar
->mcastpsq_lock
);
910 clear_bit(DTIM_EXPIRED
, &vif
->flags
);
912 /* clear the LSB of the BitMapCtl field of the TIM IE */
913 ath6kl_wmi_set_pvb_cmd(ar
->wmi
, vif
->fw_vif_idx
, MCAST_AID
, 0);
916 void ath6kl_disconnect_event(struct ath6kl_vif
*vif
, u8 reason
, u8
*bssid
,
917 u8 assoc_resp_len
, u8
*assoc_info
,
918 u16 prot_reason_status
)
920 struct ath6kl
*ar
= vif
->ar
;
922 if (vif
->nw_type
== AP_NETWORK
) {
923 if (!ath6kl_remove_sta(ar
, bssid
, prot_reason_status
))
926 /* if no more associated STAs, empty the mcast PS q */
927 if (ar
->sta_list_index
== 0) {
928 spin_lock_bh(&ar
->mcastpsq_lock
);
929 skb_queue_purge(&ar
->mcastpsq
);
930 spin_unlock_bh(&ar
->mcastpsq_lock
);
932 /* clear the LSB of the TIM IE's BitMapCtl field */
933 if (test_bit(WMI_READY
, &ar
->flag
))
934 ath6kl_wmi_set_pvb_cmd(ar
->wmi
, vif
->fw_vif_idx
,
938 if (!is_broadcast_ether_addr(bssid
)) {
939 /* send event to application */
940 cfg80211_del_sta(vif
->ndev
, bssid
, GFP_KERNEL
);
943 if (memcmp(vif
->ndev
->dev_addr
, bssid
, ETH_ALEN
) == 0) {
944 memset(vif
->wep_key_list
, 0, sizeof(vif
->wep_key_list
));
945 clear_bit(CONNECTED
, &vif
->flags
);
950 ath6kl_cfg80211_disconnect_event(vif
, reason
, bssid
,
951 assoc_resp_len
, assoc_info
,
954 aggr_reset_state(vif
->aggr_cntxt
->aggr_conn
);
956 del_timer(&vif
->disconnect_timer
);
958 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG
, "disconnect reason is %d\n", reason
);
961 * If the event is due to disconnect cmd from the host, only they
962 * the target would stop trying to connect. Under any other
963 * condition, target would keep trying to connect.
965 if (reason
== DISCONNECT_CMD
) {
966 if (!ar
->usr_bss_filter
&& test_bit(WMI_READY
, &ar
->flag
))
967 ath6kl_wmi_bssfilter_cmd(ar
->wmi
, vif
->fw_vif_idx
,
970 set_bit(CONNECT_PEND
, &vif
->flags
);
971 if (((reason
== ASSOC_FAILED
) &&
972 (prot_reason_status
== 0x11)) ||
973 ((reason
== ASSOC_FAILED
) && (prot_reason_status
== 0x0)
974 && (vif
->reconnect_flag
== 1))) {
975 set_bit(CONNECTED
, &vif
->flags
);
980 /* update connect & link status atomically */
981 spin_lock_bh(&vif
->if_lock
);
982 clear_bit(CONNECTED
, &vif
->flags
);
983 netif_carrier_off(vif
->ndev
);
984 spin_unlock_bh(&vif
->if_lock
);
986 if ((reason
!= CSERV_DISCONNECT
) || (vif
->reconnect_flag
!= 1))
987 vif
->reconnect_flag
= 0;
989 if (reason
!= CSERV_DISCONNECT
)
990 ar
->user_key_ctrl
= 0;
992 netif_stop_queue(vif
->ndev
);
993 memset(vif
->bssid
, 0, sizeof(vif
->bssid
));
996 ath6kl_tx_data_cleanup(ar
);
999 struct ath6kl_vif
*ath6kl_vif_first(struct ath6kl
*ar
)
1001 struct ath6kl_vif
*vif
;
1003 spin_lock_bh(&ar
->list_lock
);
1004 if (list_empty(&ar
->vif_list
)) {
1005 spin_unlock_bh(&ar
->list_lock
);
1009 vif
= list_first_entry(&ar
->vif_list
, struct ath6kl_vif
, list
);
1011 spin_unlock_bh(&ar
->list_lock
);
1016 static int ath6kl_open(struct net_device
*dev
)
1018 struct ath6kl_vif
*vif
= netdev_priv(dev
);
1020 set_bit(WLAN_ENABLED
, &vif
->flags
);
1022 if (test_bit(CONNECTED
, &vif
->flags
)) {
1023 netif_carrier_on(dev
);
1024 netif_wake_queue(dev
);
1026 netif_carrier_off(dev
);
1031 static int ath6kl_close(struct net_device
*dev
)
1033 struct ath6kl_vif
*vif
= netdev_priv(dev
);
1035 netif_stop_queue(dev
);
1037 ath6kl_cfg80211_stop(vif
);
1039 clear_bit(WLAN_ENABLED
, &vif
->flags
);
1044 static struct net_device_stats
*ath6kl_get_stats(struct net_device
*dev
)
1046 struct ath6kl_vif
*vif
= netdev_priv(dev
);
1048 return &vif
->net_stats
;
1051 static int ath6kl_set_features(struct net_device
*dev
,
1052 netdev_features_t features
)
1054 struct ath6kl_vif
*vif
= netdev_priv(dev
);
1055 struct ath6kl
*ar
= vif
->ar
;
1058 if ((features
& NETIF_F_RXCSUM
) &&
1059 (ar
->rx_meta_ver
!= WMI_META_VERSION_2
)) {
1060 ar
->rx_meta_ver
= WMI_META_VERSION_2
;
1061 err
= ath6kl_wmi_set_rx_frame_format_cmd(ar
->wmi
,
1063 ar
->rx_meta_ver
, 0, 0);
1065 dev
->features
= features
& ~NETIF_F_RXCSUM
;
1068 } else if (!(features
& NETIF_F_RXCSUM
) &&
1069 (ar
->rx_meta_ver
== WMI_META_VERSION_2
)) {
1070 ar
->rx_meta_ver
= 0;
1071 err
= ath6kl_wmi_set_rx_frame_format_cmd(ar
->wmi
,
1073 ar
->rx_meta_ver
, 0, 0);
1075 dev
->features
= features
| NETIF_F_RXCSUM
;
1084 static void ath6kl_set_multicast_list(struct net_device
*ndev
)
1086 struct ath6kl_vif
*vif
= netdev_priv(ndev
);
1087 bool mc_all_on
= false, mc_all_off
= false;
1088 int mc_count
= netdev_mc_count(ndev
);
1089 struct netdev_hw_addr
*ha
;
1091 struct ath6kl_mc_filter
*mc_filter
, *tmp
;
1092 struct list_head mc_filter_new
;
1095 if (!test_bit(WMI_READY
, &vif
->ar
->flag
) ||
1096 !test_bit(WLAN_ENABLED
, &vif
->flags
))
1099 mc_all_on
= !!(ndev
->flags
& IFF_PROMISC
) ||
1100 !!(ndev
->flags
& IFF_ALLMULTI
) ||
1101 !!(mc_count
> ATH6K_MAX_MC_FILTERS_PER_LIST
);
1103 mc_all_off
= !(ndev
->flags
& IFF_MULTICAST
) || mc_count
== 0;
1105 if (mc_all_on
|| mc_all_off
) {
1106 /* Enable/disable all multicast */
1107 ath6kl_dbg(ATH6KL_DBG_TRC
, "%s multicast filter\n",
1108 mc_all_on
? "enabling" : "disabling");
1109 ret
= ath6kl_wmi_mcast_filter_cmd(vif
->ar
->wmi
, vif
->fw_vif_idx
,
1112 ath6kl_warn("Failed to %s multicast receive\n",
1113 mc_all_on
? "enable" : "disable");
1117 list_for_each_entry_safe(mc_filter
, tmp
, &vif
->mc_filter
, list
) {
1119 netdev_for_each_mc_addr(ha
, ndev
) {
1120 if (memcmp(ha
->addr
, mc_filter
->hw_addr
,
1121 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE
) == 0) {
1129 * Delete the filter which was previously set
1130 * but not in the new request.
1132 ath6kl_dbg(ATH6KL_DBG_TRC
,
1133 "Removing %pM from multicast filter\n",
1134 mc_filter
->hw_addr
);
1135 ret
= ath6kl_wmi_add_del_mcast_filter_cmd(vif
->ar
->wmi
,
1136 vif
->fw_vif_idx
, mc_filter
->hw_addr
,
1139 ath6kl_warn("Failed to remove multicast filter:%pM\n",
1140 mc_filter
->hw_addr
);
1144 list_del(&mc_filter
->list
);
1149 INIT_LIST_HEAD(&mc_filter_new
);
1151 netdev_for_each_mc_addr(ha
, ndev
) {
1153 list_for_each_entry(mc_filter
, &vif
->mc_filter
, list
) {
1154 if (memcmp(ha
->addr
, mc_filter
->hw_addr
,
1155 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE
) == 0) {
1162 mc_filter
= kzalloc(sizeof(struct ath6kl_mc_filter
),
1169 memcpy(mc_filter
->hw_addr
, ha
->addr
,
1170 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE
);
1171 /* Set the multicast filter */
1172 ath6kl_dbg(ATH6KL_DBG_TRC
,
1173 "Adding %pM to multicast filter list\n",
1174 mc_filter
->hw_addr
);
1175 ret
= ath6kl_wmi_add_del_mcast_filter_cmd(vif
->ar
->wmi
,
1176 vif
->fw_vif_idx
, mc_filter
->hw_addr
,
1179 ath6kl_warn("Failed to add multicast filter :%pM\n",
1180 mc_filter
->hw_addr
);
1185 list_add_tail(&mc_filter
->list
, &mc_filter_new
);
1190 list_splice_tail(&mc_filter_new
, &vif
->mc_filter
);
1193 static const struct net_device_ops ath6kl_netdev_ops
= {
1194 .ndo_open
= ath6kl_open
,
1195 .ndo_stop
= ath6kl_close
,
1196 .ndo_start_xmit
= ath6kl_data_tx
,
1197 .ndo_get_stats
= ath6kl_get_stats
,
1198 .ndo_set_features
= ath6kl_set_features
,
1199 .ndo_set_rx_mode
= ath6kl_set_multicast_list
,
1202 void init_netdev(struct net_device
*dev
)
1204 dev
->netdev_ops
= &ath6kl_netdev_ops
;
1205 dev
->destructor
= free_netdev
;
1206 dev
->watchdog_timeo
= ATH6KL_TX_TIMEOUT
;
1208 dev
->needed_headroom
= ETH_HLEN
;
1209 dev
->needed_headroom
+= sizeof(struct ath6kl_llc_snap_hdr
) +
1210 sizeof(struct wmi_data_hdr
) + HTC_HDR_LENGTH
1211 + WMI_MAX_TX_META_SZ
+ ATH6KL_HTC_ALIGN_BYTES
;
1213 dev
->hw_features
|= NETIF_F_IP_CSUM
| NETIF_F_RXCSUM
;