2 * Implement cfg80211 ("iw") support.
4 * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
5 * Holger Schurig <hs4233@mail.mn-solutions.de>
9 #include <linux/sched.h>
10 #include <linux/wait.h>
11 #include <linux/slab.h>
12 #include <linux/ieee80211.h>
13 #include <net/cfg80211.h>
14 #include <asm/unaligned.h>
21 #define CHAN2G(_channel, _freq, _flags) { \
22 .band = IEEE80211_BAND_2GHZ, \
23 .center_freq = (_freq), \
24 .hw_value = (_channel), \
26 .max_antenna_gain = 0, \
30 static struct ieee80211_channel lbs_2ghz_channels
[] = {
47 #define RATETAB_ENT(_rate, _hw_value, _flags) { \
49 .hw_value = (_hw_value), \
54 /* Table 6 in section 3.2.1.1 */
55 static struct ieee80211_rate lbs_rates
[] = {
56 RATETAB_ENT(10, 0, 0),
57 RATETAB_ENT(20, 1, 0),
58 RATETAB_ENT(55, 2, 0),
59 RATETAB_ENT(110, 3, 0),
60 RATETAB_ENT(60, 9, 0),
61 RATETAB_ENT(90, 6, 0),
62 RATETAB_ENT(120, 7, 0),
63 RATETAB_ENT(180, 8, 0),
64 RATETAB_ENT(240, 9, 0),
65 RATETAB_ENT(360, 10, 0),
66 RATETAB_ENT(480, 11, 0),
67 RATETAB_ENT(540, 12, 0),
70 static struct ieee80211_supported_band lbs_band_2ghz
= {
71 .channels
= lbs_2ghz_channels
,
72 .n_channels
= ARRAY_SIZE(lbs_2ghz_channels
),
73 .bitrates
= lbs_rates
,
74 .n_bitrates
= ARRAY_SIZE(lbs_rates
),
78 static const u32 cipher_suites
[] = {
79 WLAN_CIPHER_SUITE_WEP40
,
80 WLAN_CIPHER_SUITE_WEP104
,
81 WLAN_CIPHER_SUITE_TKIP
,
82 WLAN_CIPHER_SUITE_CCMP
,
85 /* Time to stay on the channel */
86 #define LBS_DWELL_PASSIVE 100
87 #define LBS_DWELL_ACTIVE 40
90 /***************************************************************************
91 * Misc utility functions
93 * TLVs are Marvell specific. They are very similar to IEs, they have the
94 * same structure: type, length, data*. The only difference: for IEs, the
95 * type and length are u8, but for TLVs they're __le16.
99 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
100 * in the firmware spec
102 static u8
lbs_auth_to_authtype(enum nl80211_auth_type auth_type
)
107 case NL80211_AUTHTYPE_OPEN_SYSTEM
:
108 case NL80211_AUTHTYPE_SHARED_KEY
:
111 case NL80211_AUTHTYPE_AUTOMATIC
:
112 ret
= NL80211_AUTHTYPE_OPEN_SYSTEM
;
114 case NL80211_AUTHTYPE_NETWORK_EAP
:
118 /* silence compiler */
125 /* Various firmware commands need the list of supported rates, but with
126 the hight-bit set for basic rates */
127 static int lbs_add_rates(u8
*rates
)
131 for (i
= 0; i
< ARRAY_SIZE(lbs_rates
); i
++) {
132 u8 rate
= lbs_rates
[i
].bitrate
/ 5;
133 if (rate
== 0x02 || rate
== 0x04 ||
134 rate
== 0x0b || rate
== 0x16)
138 return ARRAY_SIZE(lbs_rates
);
142 /***************************************************************************
143 * TLV utility functions
145 * TLVs are Marvell specific. They are very similar to IEs, they have the
146 * same structure: type, length, data*. The only difference: for IEs, the
147 * type and length are u8, but for TLVs they're __le16.
154 #define LBS_MAX_SSID_TLV_SIZE \
155 (sizeof(struct mrvl_ie_header) \
156 + IEEE80211_MAX_SSID_LEN)
158 static int lbs_add_ssid_tlv(u8
*tlv
, const u8
*ssid
, int ssid_len
)
160 struct mrvl_ie_ssid_param_set
*ssid_tlv
= (void *)tlv
;
165 * ssid 4d 4e 54 45 53 54
167 ssid_tlv
->header
.type
= cpu_to_le16(TLV_TYPE_SSID
);
168 ssid_tlv
->header
.len
= cpu_to_le16(ssid_len
);
169 memcpy(ssid_tlv
->ssid
, ssid
, ssid_len
);
170 return sizeof(ssid_tlv
->header
) + ssid_len
;
175 * Add channel list TLV (section 8.4.2)
177 * Actual channel data comes from priv->wdev->wiphy->channels.
179 #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
180 (sizeof(struct mrvl_ie_header) \
181 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
183 static int lbs_add_channel_list_tlv(struct lbs_private
*priv
, u8
*tlv
,
184 int last_channel
, int active_scan
)
186 int chanscanparamsize
= sizeof(struct chanscanparamset
) *
187 (last_channel
- priv
->scan_channel
);
189 struct mrvl_ie_header
*header
= (void *) tlv
;
192 * TLV-ID CHANLIST 01 01
194 * channel 00 01 00 00 00 64 00
198 * min scan time 00 00
199 * max scan time 64 00
200 * channel 2 00 02 00 00 00 64 00
204 header
->type
= cpu_to_le16(TLV_TYPE_CHANLIST
);
205 header
->len
= cpu_to_le16(chanscanparamsize
);
206 tlv
+= sizeof(struct mrvl_ie_header
);
208 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
210 memset(tlv
, 0, chanscanparamsize
);
212 while (priv
->scan_channel
< last_channel
) {
213 struct chanscanparamset
*param
= (void *) tlv
;
215 param
->radiotype
= CMD_SCAN_RADIO_TYPE_BG
;
217 priv
->scan_req
->channels
[priv
->scan_channel
]->hw_value
;
219 param
->maxscantime
= cpu_to_le16(LBS_DWELL_ACTIVE
);
221 param
->chanscanmode
.passivescan
= 1;
222 param
->maxscantime
= cpu_to_le16(LBS_DWELL_PASSIVE
);
224 tlv
+= sizeof(struct chanscanparamset
);
225 priv
->scan_channel
++;
227 return sizeof(struct mrvl_ie_header
) + chanscanparamsize
;
234 * The rates are in lbs_bg_rates[], but for the 802.11b
235 * rates the high bit is set. We add this TLV only because
236 * there's a firmware which otherwise doesn't report all
239 #define LBS_MAX_RATES_TLV_SIZE \
240 (sizeof(struct mrvl_ie_header) \
241 + (ARRAY_SIZE(lbs_rates)))
243 /* Adds a TLV with all rates the hardware supports */
244 static int lbs_add_supported_rates_tlv(u8
*tlv
)
247 struct mrvl_ie_rates_param_set
*rate_tlv
= (void *)tlv
;
252 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
254 rate_tlv
->header
.type
= cpu_to_le16(TLV_TYPE_RATES
);
255 tlv
+= sizeof(rate_tlv
->header
);
256 i
= lbs_add_rates(tlv
);
258 rate_tlv
->header
.len
= cpu_to_le16(i
);
259 return sizeof(rate_tlv
->header
) + i
;
262 /* Add common rates from a TLV and return the new end of the TLV */
264 add_ie_rates(u8
*tlv
, const u8
*ie
, int *nrates
)
266 int hw
, ap
, ap_max
= ie
[1];
269 /* Advance past IE header */
272 lbs_deb_hex(LBS_DEB_ASSOC
, "AP IE Rates", (u8
*) ie
, ap_max
);
274 for (hw
= 0; hw
< ARRAY_SIZE(lbs_rates
); hw
++) {
275 hw_rate
= lbs_rates
[hw
].bitrate
/ 5;
276 for (ap
= 0; ap
< ap_max
; ap
++) {
277 if (hw_rate
== (ie
[ap
] & 0x7f)) {
279 *nrates
= *nrates
+ 1;
287 * Adds a TLV with all rates the hardware *and* BSS supports.
289 static int lbs_add_common_rates_tlv(u8
*tlv
, struct cfg80211_bss
*bss
)
291 struct mrvl_ie_rates_param_set
*rate_tlv
= (void *)tlv
;
292 const u8
*rates_eid
, *ext_rates_eid
;
295 rates_eid
= ieee80211_bss_get_ie(bss
, WLAN_EID_SUPP_RATES
);
296 ext_rates_eid
= ieee80211_bss_get_ie(bss
, WLAN_EID_EXT_SUPP_RATES
);
299 * 01 00 TLV_TYPE_RATES
303 rate_tlv
->header
.type
= cpu_to_le16(TLV_TYPE_RATES
);
304 tlv
+= sizeof(rate_tlv
->header
);
306 /* Add basic rates */
308 tlv
= add_ie_rates(tlv
, rates_eid
, &n
);
310 /* Add extended rates, if any */
312 tlv
= add_ie_rates(tlv
, ext_rates_eid
, &n
);
314 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
315 /* Fallback: add basic 802.11b rates */
323 rate_tlv
->header
.len
= cpu_to_le16(n
);
324 return sizeof(rate_tlv
->header
) + n
;
331 * This is only needed for newer firmware (V9 and up).
333 #define LBS_MAX_AUTH_TYPE_TLV_SIZE \
334 sizeof(struct mrvl_ie_auth_type)
336 static int lbs_add_auth_type_tlv(u8
*tlv
, enum nl80211_auth_type auth_type
)
338 struct mrvl_ie_auth_type
*auth
= (void *) tlv
;
341 * 1f 01 TLV_TYPE_AUTH_TYPE
345 auth
->header
.type
= cpu_to_le16(TLV_TYPE_AUTH_TYPE
);
346 auth
->header
.len
= cpu_to_le16(sizeof(*auth
)-sizeof(auth
->header
));
347 auth
->auth
= cpu_to_le16(lbs_auth_to_authtype(auth_type
));
348 return sizeof(*auth
);
353 * Add channel (phy ds) TLV
355 #define LBS_MAX_CHANNEL_TLV_SIZE \
356 sizeof(struct mrvl_ie_header)
358 static int lbs_add_channel_tlv(u8
*tlv
, u8 channel
)
360 struct mrvl_ie_ds_param_set
*ds
= (void *) tlv
;
363 * 03 00 TLV_TYPE_PHY_DS
367 ds
->header
.type
= cpu_to_le16(TLV_TYPE_PHY_DS
);
368 ds
->header
.len
= cpu_to_le16(sizeof(*ds
)-sizeof(ds
->header
));
369 ds
->channel
= channel
;
375 * Add (empty) CF param TLV of the form:
377 #define LBS_MAX_CF_PARAM_TLV_SIZE \
378 sizeof(struct mrvl_ie_header)
380 static int lbs_add_cf_param_tlv(u8
*tlv
)
382 struct mrvl_ie_cf_param_set
*cf
= (void *)tlv
;
389 * 00 00 cfpmaxduration
390 * 00 00 cfpdurationremaining
392 cf
->header
.type
= cpu_to_le16(TLV_TYPE_CF
);
393 cf
->header
.len
= cpu_to_le16(sizeof(*cf
)-sizeof(cf
->header
));
400 #define LBS_MAX_WPA_TLV_SIZE \
401 (sizeof(struct mrvl_ie_header) \
402 + 128 /* TODO: I guessed the size */)
404 static int lbs_add_wpa_tlv(u8
*tlv
, const u8
*ie
, u8 ie_len
)
409 * We need just convert an IE to an TLV. IEs use u8 for the header,
413 * but TLVs use __le16 instead:
420 tlv_len
= *tlv
++ = *ie
++;
424 /* the TLV is two bytes larger than the IE */
428 /***************************************************************************
432 static int lbs_cfg_set_channel(struct wiphy
*wiphy
,
433 struct net_device
*netdev
,
434 struct ieee80211_channel
*channel
,
435 enum nl80211_channel_type channel_type
)
437 struct lbs_private
*priv
= wiphy_priv(wiphy
);
440 lbs_deb_enter_args(LBS_DEB_CFG80211
, "freq %d, type %d",
441 channel
->center_freq
, channel_type
);
443 if (channel_type
!= NL80211_CHAN_NO_HT
)
446 ret
= lbs_set_channel(priv
, channel
->hw_value
);
449 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
455 /***************************************************************************
460 * When scanning, the firmware doesn't send a nul packet with the power-safe
461 * bit to the AP. So we cannot stay away from our current channel too long,
462 * otherwise we loose data. So take a "nap" while scanning every other
465 #define LBS_SCAN_BEFORE_NAP 4
469 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
470 * which isn't really an RSSI, as it becomes larger when moving away from
471 * the AP. Anyway, we need to convert that into mBm.
473 #define LBS_SCAN_RSSI_TO_MBM(rssi) \
474 ((-(int)rssi + 3)*100)
476 static int lbs_ret_scan(struct lbs_private
*priv
, unsigned long dummy
,
477 struct cmd_header
*resp
)
479 struct cmd_ds_802_11_scan_rsp
*scanresp
= (void *)resp
;
487 lbs_deb_enter(LBS_DEB_CFG80211
);
489 bsssize
= get_unaligned_le16(&scanresp
->bssdescriptsize
);
491 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
492 scanresp
->nr_sets
, bsssize
, le16_to_cpu(resp
->size
));
494 if (scanresp
->nr_sets
== 0) {
500 * The general layout of the scan response is described in chapter
501 * 5.7.1. Basically we have a common part, then any number of BSS
502 * descriptor sections. Finally we have section with the same number
505 * cmd_ds_802_11_scan_rsp
518 * MrvlIEtypes_TsfFimestamp_t
524 pos
= scanresp
->bssdesc_and_tlvbuffer
;
526 lbs_deb_hex(LBS_DEB_SCAN
, "SCAN_RSP", scanresp
->bssdesc_and_tlvbuffer
,
527 scanresp
->bssdescriptsize
);
529 tsfdesc
= pos
+ bsssize
;
530 tsfsize
= 4 + 8 * scanresp
->nr_sets
;
531 lbs_deb_hex(LBS_DEB_SCAN
, "SCAN_TSF", (u8
*) tsfdesc
, tsfsize
);
533 /* Validity check: we expect a Marvell-Local TLV */
534 i
= get_unaligned_le16(tsfdesc
);
536 if (i
!= TLV_TYPE_TSFTIMESTAMP
) {
537 lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i
);
541 /* Validity check: the TLV holds TSF values with 8 bytes each, so
542 * the size in the TLV must match the nr_sets value */
543 i
= get_unaligned_le16(tsfdesc
);
545 if (i
/ 8 != scanresp
->nr_sets
) {
546 lbs_deb_scan("scan response: invalid number of TSF timestamp "
547 "sets (expected %d got %d)\n", scanresp
->nr_sets
,
552 for (i
= 0; i
< scanresp
->nr_sets
; i
++) {
561 const u8
*ssid
= NULL
;
563 DECLARE_SSID_BUF(ssid_buf
);
565 int len
= get_unaligned_le16(pos
);
573 /* Packet time stamp */
575 /* Beacon interval */
576 intvl
= get_unaligned_le16(pos
);
579 capa
= get_unaligned_le16(pos
);
582 /* To find out the channel, we must parse the IEs */
584 /* 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
585 interval, capabilities */
586 ielen
= left
= len
- (6 + 1 + 8 + 2 + 2);
592 if (elen
> left
|| elen
== 0) {
593 lbs_deb_scan("scan response: invalid IE fmt\n");
597 if (id
== WLAN_EID_DS_PARAMS
)
599 if (id
== WLAN_EID_SSID
) {
607 /* No channel, no luck */
609 struct wiphy
*wiphy
= priv
->wdev
->wiphy
;
610 int freq
= ieee80211_channel_to_frequency(chan_no
);
611 struct ieee80211_channel
*channel
=
612 ieee80211_get_channel(wiphy
, freq
);
614 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
616 bssid
, capa
, chan_no
,
617 print_ssid(ssid_buf
, ssid
, ssid_len
),
618 LBS_SCAN_RSSI_TO_MBM(rssi
)/100);
621 !(channel
->flags
& IEEE80211_CHAN_DISABLED
))
622 cfg80211_inform_bss(wiphy
, channel
,
623 bssid
, le64_to_cpu(*(__le64
*)tsfdesc
),
624 capa
, intvl
, ie
, ielen
,
625 LBS_SCAN_RSSI_TO_MBM(rssi
),
628 lbs_deb_scan("scan response: missing BSS channel IE\n");
635 lbs_deb_leave_args(LBS_DEB_SCAN
, "ret %d", ret
);
641 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
642 * TLV and a rates TLV. Determine the maximum size of them:
644 #define LBS_SCAN_MAX_CMD_SIZE \
645 (sizeof(struct cmd_ds_802_11_scan) \
646 + LBS_MAX_SSID_TLV_SIZE \
647 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
648 + LBS_MAX_RATES_TLV_SIZE)
651 * Assumes priv->scan_req is initialized and valid
652 * Assumes priv->scan_channel is initialized
654 static void lbs_scan_worker(struct work_struct
*work
)
656 struct lbs_private
*priv
=
657 container_of(work
, struct lbs_private
, scan_work
.work
);
658 struct cmd_ds_802_11_scan
*scan_cmd
;
659 u8
*tlv
; /* pointer into our current, growing TLV storage area */
661 int running
, carrier
;
663 lbs_deb_enter(LBS_DEB_SCAN
);
665 scan_cmd
= kzalloc(LBS_SCAN_MAX_CMD_SIZE
, GFP_KERNEL
);
666 if (scan_cmd
== NULL
)
667 goto out_no_scan_cmd
;
669 /* prepare fixed part of scan command */
670 scan_cmd
->bsstype
= CMD_BSS_TYPE_ANY
;
672 /* stop network while we're away from our main channel */
673 running
= !netif_queue_stopped(priv
->dev
);
674 carrier
= netif_carrier_ok(priv
->dev
);
676 netif_stop_queue(priv
->dev
);
678 netif_carrier_off(priv
->dev
);
680 /* prepare fixed part of scan command */
681 tlv
= scan_cmd
->tlvbuffer
;
684 if (priv
->scan_req
->n_ssids
)
685 tlv
+= lbs_add_ssid_tlv(tlv
,
686 priv
->scan_req
->ssids
[0].ssid
,
687 priv
->scan_req
->ssids
[0].ssid_len
);
689 /* add channel TLVs */
690 last_channel
= priv
->scan_channel
+ LBS_SCAN_BEFORE_NAP
;
691 if (last_channel
> priv
->scan_req
->n_channels
)
692 last_channel
= priv
->scan_req
->n_channels
;
693 tlv
+= lbs_add_channel_list_tlv(priv
, tlv
, last_channel
,
694 priv
->scan_req
->n_ssids
);
697 tlv
+= lbs_add_supported_rates_tlv(tlv
);
699 if (priv
->scan_channel
< priv
->scan_req
->n_channels
) {
700 cancel_delayed_work(&priv
->scan_work
);
702 queue_delayed_work(priv
->work_thread
, &priv
->scan_work
,
703 msecs_to_jiffies(300));
706 /* This is the final data we are about to send */
707 scan_cmd
->hdr
.size
= cpu_to_le16(tlv
- (u8
*)scan_cmd
);
708 lbs_deb_hex(LBS_DEB_SCAN
, "SCAN_CMD", (void *)scan_cmd
,
710 lbs_deb_hex(LBS_DEB_SCAN
, "SCAN_TLV", scan_cmd
->tlvbuffer
,
711 tlv
- scan_cmd
->tlvbuffer
);
713 __lbs_cmd(priv
, CMD_802_11_SCAN
, &scan_cmd
->hdr
,
714 le16_to_cpu(scan_cmd
->hdr
.size
),
717 if (priv
->scan_channel
>= priv
->scan_req
->n_channels
) {
719 if (priv
->internal_scan
)
720 kfree(priv
->scan_req
);
722 cfg80211_scan_done(priv
->scan_req
, false);
724 priv
->scan_req
= NULL
;
725 priv
->last_scan
= jiffies
;
728 /* Restart network */
730 netif_carrier_on(priv
->dev
);
731 if (running
&& !priv
->tx_pending_len
)
732 netif_wake_queue(priv
->dev
);
736 /* Wake up anything waiting on scan completion */
737 if (priv
->scan_req
== NULL
) {
738 lbs_deb_scan("scan: waking up waiters\n");
739 wake_up_all(&priv
->scan_q
);
743 lbs_deb_leave(LBS_DEB_SCAN
);
746 static void _internal_start_scan(struct lbs_private
*priv
, bool internal
,
747 struct cfg80211_scan_request
*request
)
749 lbs_deb_enter(LBS_DEB_CFG80211
);
751 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
752 request
->n_ssids
, request
->n_channels
, request
->ie_len
);
754 priv
->scan_channel
= 0;
755 queue_delayed_work(priv
->work_thread
, &priv
->scan_work
,
756 msecs_to_jiffies(50));
758 priv
->scan_req
= request
;
759 priv
->internal_scan
= internal
;
761 lbs_deb_leave(LBS_DEB_CFG80211
);
764 static int lbs_cfg_scan(struct wiphy
*wiphy
,
765 struct net_device
*dev
,
766 struct cfg80211_scan_request
*request
)
768 struct lbs_private
*priv
= wiphy_priv(wiphy
);
771 lbs_deb_enter(LBS_DEB_CFG80211
);
773 if (priv
->scan_req
|| delayed_work_pending(&priv
->scan_work
)) {
774 /* old scan request not yet processed */
779 _internal_start_scan(priv
, false, request
);
781 if (priv
->surpriseremoved
)
785 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
792 /***************************************************************************
796 void lbs_send_disconnect_notification(struct lbs_private
*priv
)
798 lbs_deb_enter(LBS_DEB_CFG80211
);
800 cfg80211_disconnected(priv
->dev
,
805 lbs_deb_leave(LBS_DEB_CFG80211
);
808 void lbs_send_mic_failureevent(struct lbs_private
*priv
, u32 event
)
810 lbs_deb_enter(LBS_DEB_CFG80211
);
812 cfg80211_michael_mic_failure(priv
->dev
,
814 event
== MACREG_INT_CODE_MIC_ERR_MULTICAST
?
815 NL80211_KEYTYPE_GROUP
:
816 NL80211_KEYTYPE_PAIRWISE
,
821 lbs_deb_leave(LBS_DEB_CFG80211
);
827 /***************************************************************************
833 * This removes all WEP keys
835 static int lbs_remove_wep_keys(struct lbs_private
*priv
)
837 struct cmd_ds_802_11_set_wep cmd
;
840 lbs_deb_enter(LBS_DEB_CFG80211
);
842 memset(&cmd
, 0, sizeof(cmd
));
843 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
844 cmd
.keyindex
= cpu_to_le16(priv
->wep_tx_key
);
845 cmd
.action
= cpu_to_le16(CMD_ACT_REMOVE
);
847 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SET_WEP
, &cmd
);
849 lbs_deb_leave(LBS_DEB_CFG80211
);
856 static int lbs_set_wep_keys(struct lbs_private
*priv
)
858 struct cmd_ds_802_11_set_wep cmd
;
862 lbs_deb_enter(LBS_DEB_CFG80211
);
869 * action 02 00 ACT_ADD
871 * type for key 1 01 WEP40
875 * key 1 39 39 39 39 39 00 00 00
876 * 00 00 00 00 00 00 00 00
877 * key 2 00 00 00 00 00 00 00 00
878 * 00 00 00 00 00 00 00 00
879 * key 3 00 00 00 00 00 00 00 00
880 * 00 00 00 00 00 00 00 00
881 * key 4 00 00 00 00 00 00 00 00
883 if (priv
->wep_key_len
[0] || priv
->wep_key_len
[1] ||
884 priv
->wep_key_len
[2] || priv
->wep_key_len
[3]) {
885 /* Only set wep keys if we have at least one of them */
886 memset(&cmd
, 0, sizeof(cmd
));
887 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
888 cmd
.keyindex
= cpu_to_le16(priv
->wep_tx_key
);
889 cmd
.action
= cpu_to_le16(CMD_ACT_ADD
);
891 for (i
= 0; i
< 4; i
++) {
892 switch (priv
->wep_key_len
[i
]) {
893 case WLAN_KEY_LEN_WEP40
:
894 cmd
.keytype
[i
] = CMD_TYPE_WEP_40_BIT
;
896 case WLAN_KEY_LEN_WEP104
:
897 cmd
.keytype
[i
] = CMD_TYPE_WEP_104_BIT
;
903 memcpy(cmd
.keymaterial
[i
], priv
->wep_key
[i
],
904 priv
->wep_key_len
[i
]);
907 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SET_WEP
, &cmd
);
909 /* Otherwise remove all wep keys */
910 ret
= lbs_remove_wep_keys(priv
);
913 lbs_deb_leave(LBS_DEB_CFG80211
);
919 * Enable/Disable RSN status
921 static int lbs_enable_rsn(struct lbs_private
*priv
, int enable
)
923 struct cmd_ds_802_11_enable_rsn cmd
;
926 lbs_deb_enter_args(LBS_DEB_CFG80211
, "%d", enable
);
933 * action 01 00 ACT_SET
936 memset(&cmd
, 0, sizeof(cmd
));
937 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
938 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
939 cmd
.enable
= cpu_to_le16(enable
);
941 ret
= lbs_cmd_with_response(priv
, CMD_802_11_ENABLE_RSN
, &cmd
);
943 lbs_deb_leave(LBS_DEB_CFG80211
);
949 * Set WPA/WPA key material
952 /* like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
953 * get rid of WEXT, this should go into host.h */
955 struct cmd_key_material
{
956 struct cmd_header hdr
;
959 struct MrvlIEtype_keyParamSet param
;
962 static int lbs_set_key_material(struct lbs_private
*priv
,
965 u8
*key
, u16 key_len
)
967 struct cmd_key_material cmd
;
970 lbs_deb_enter(LBS_DEB_CFG80211
);
973 * Example for WPA (TKIP):
980 * TLV type 00 01 key param
982 * key type 01 00 TKIP
983 * key info 06 00 UNICAST | ENABLED
987 memset(&cmd
, 0, sizeof(cmd
));
988 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
989 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
990 cmd
.param
.type
= cpu_to_le16(TLV_TYPE_KEY_MATERIAL
);
991 cmd
.param
.length
= cpu_to_le16(sizeof(cmd
.param
) - 4);
992 cmd
.param
.keytypeid
= cpu_to_le16(key_type
);
993 cmd
.param
.keyinfo
= cpu_to_le16(key_info
);
994 cmd
.param
.keylen
= cpu_to_le16(key_len
);
996 memcpy(cmd
.param
.key
, key
, key_len
);
998 ret
= lbs_cmd_with_response(priv
, CMD_802_11_KEY_MATERIAL
, &cmd
);
1000 lbs_deb_leave(LBS_DEB_CFG80211
);
1006 * Sets the auth type (open, shared, etc) in the firmware. That
1007 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
1008 * command doesn't send an authentication frame at all, it just
1009 * stores the auth_type.
1011 static int lbs_set_authtype(struct lbs_private
*priv
,
1012 struct cfg80211_connect_params
*sme
)
1014 struct cmd_ds_802_11_authenticate cmd
;
1017 lbs_deb_enter_args(LBS_DEB_CFG80211
, "%d", sme
->auth_type
);
1024 * BSS id 00 13 19 80 da 30
1026 * reserved 00 00 00 00 00 00 00 00 00 00
1028 memset(&cmd
, 0, sizeof(cmd
));
1029 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1031 memcpy(cmd
.bssid
, sme
->bssid
, ETH_ALEN
);
1032 /* convert auth_type */
1033 ret
= lbs_auth_to_authtype(sme
->auth_type
);
1038 ret
= lbs_cmd_with_response(priv
, CMD_802_11_AUTHENTICATE
, &cmd
);
1041 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1047 * Create association request
1049 #define LBS_ASSOC_MAX_CMD_SIZE \
1050 (sizeof(struct cmd_ds_802_11_associate) \
1051 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1052 + LBS_MAX_SSID_TLV_SIZE \
1053 + LBS_MAX_CHANNEL_TLV_SIZE \
1054 + LBS_MAX_CF_PARAM_TLV_SIZE \
1055 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1056 + LBS_MAX_WPA_TLV_SIZE)
1058 static int lbs_associate(struct lbs_private
*priv
,
1059 struct cfg80211_bss
*bss
,
1060 struct cfg80211_connect_params
*sme
)
1062 struct cmd_ds_802_11_associate_response
*resp
;
1063 struct cmd_ds_802_11_associate
*cmd
= kzalloc(LBS_ASSOC_MAX_CMD_SIZE
,
1066 size_t len
, resp_ie_len
;
1069 u8
*pos
= &(cmd
->iebuf
[0]);
1072 lbs_deb_enter(LBS_DEB_CFG80211
);
1084 * BSS id 00 13 19 80 da 30
1085 * capabilities 11 00
1086 * listen interval 0a 00
1087 * beacon interval 00 00
1089 * TLVs xx (up to 512 bytes)
1091 cmd
->hdr
.command
= cpu_to_le16(CMD_802_11_ASSOCIATE
);
1093 /* Fill in static fields */
1094 memcpy(cmd
->bssid
, bss
->bssid
, ETH_ALEN
);
1095 cmd
->listeninterval
= cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL
);
1096 cmd
->capability
= cpu_to_le16(bss
->capability
);
1099 ssid_eid
= ieee80211_bss_get_ie(bss
, WLAN_EID_SSID
);
1101 pos
+= lbs_add_ssid_tlv(pos
, ssid_eid
+ 2, ssid_eid
[1]);
1103 lbs_deb_assoc("no SSID\n");
1105 /* add DS param TLV */
1107 pos
+= lbs_add_channel_tlv(pos
, bss
->channel
->hw_value
);
1109 lbs_deb_assoc("no channel\n");
1111 /* add (empty) CF param TLV */
1112 pos
+= lbs_add_cf_param_tlv(pos
);
1115 tmp
= pos
+ 4; /* skip Marvell IE header */
1116 pos
+= lbs_add_common_rates_tlv(pos
, bss
);
1117 lbs_deb_hex(LBS_DEB_ASSOC
, "Common Rates", tmp
, pos
- tmp
);
1119 /* add auth type TLV */
1120 if (MRVL_FW_MAJOR_REV(priv
->fwrelease
) >= 9)
1121 pos
+= lbs_add_auth_type_tlv(pos
, sme
->auth_type
);
1123 /* add WPA/WPA2 TLV */
1124 if (sme
->ie
&& sme
->ie_len
)
1125 pos
+= lbs_add_wpa_tlv(pos
, sme
->ie
, sme
->ie_len
);
1127 len
= (sizeof(*cmd
) - sizeof(cmd
->iebuf
)) +
1128 (u16
)(pos
- (u8
*) &cmd
->iebuf
);
1129 cmd
->hdr
.size
= cpu_to_le16(len
);
1131 lbs_deb_hex(LBS_DEB_ASSOC
, "ASSOC_CMD", (u8
*) cmd
,
1132 le16_to_cpu(cmd
->hdr
.size
));
1134 /* store for later use */
1135 memcpy(priv
->assoc_bss
, bss
->bssid
, ETH_ALEN
);
1137 ret
= lbs_cmd_with_response(priv
, CMD_802_11_ASSOCIATE
, cmd
);
1141 /* generate connect message to cfg80211 */
1143 resp
= (void *) cmd
; /* recast for easier field access */
1144 status
= le16_to_cpu(resp
->statuscode
);
1146 /* Older FW versions map the IEEE 802.11 Status Code in the association
1147 * response to the following values returned in resp->statuscode:
1149 * IEEE Status Code Marvell Status Code
1150 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1151 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1152 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1153 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1154 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1155 * others -> 0x0003 ASSOC_RESULT_REFUSED
1157 * Other response codes:
1158 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1159 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1160 * association response from the AP)
1162 if (MRVL_FW_MAJOR_REV(priv
->fwrelease
) <= 8) {
1167 lbs_deb_assoc("invalid association parameters\n");
1168 status
= WLAN_STATUS_CAPS_UNSUPPORTED
;
1171 lbs_deb_assoc("timer expired while waiting for AP\n");
1172 status
= WLAN_STATUS_AUTH_TIMEOUT
;
1175 lbs_deb_assoc("association refused by AP\n");
1176 status
= WLAN_STATUS_ASSOC_DENIED_UNSPEC
;
1179 lbs_deb_assoc("authentication refused by AP\n");
1180 status
= WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION
;
1183 lbs_deb_assoc("association failure %d\n", status
);
1184 /* v5 OLPC firmware does return the AP status code if
1185 * it's not one of the values above. Let that through.
1191 lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
1192 "aid 0x%04x\n", status
, le16_to_cpu(resp
->statuscode
),
1193 le16_to_cpu(resp
->capability
), le16_to_cpu(resp
->aid
));
1195 resp_ie_len
= le16_to_cpu(resp
->hdr
.size
)
1198 cfg80211_connect_result(priv
->dev
,
1200 sme
->ie
, sme
->ie_len
,
1201 resp
->iebuf
, resp_ie_len
,
1206 /* TODO: get rid of priv->connect_status */
1207 priv
->connect_status
= LBS_CONNECTED
;
1208 netif_carrier_on(priv
->dev
);
1209 if (!priv
->tx_pending_len
)
1210 netif_tx_wake_all_queues(priv
->dev
);
1214 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1218 static struct cfg80211_scan_request
*
1219 _new_connect_scan_req(struct wiphy
*wiphy
, struct cfg80211_connect_params
*sme
)
1221 struct cfg80211_scan_request
*creq
= NULL
;
1222 int i
, n_channels
= 0;
1223 enum ieee80211_band band
;
1225 for (band
= 0; band
< IEEE80211_NUM_BANDS
; band
++) {
1226 if (wiphy
->bands
[band
])
1227 n_channels
+= wiphy
->bands
[band
]->n_channels
;
1230 creq
= kzalloc(sizeof(*creq
) + sizeof(struct cfg80211_ssid
) +
1231 n_channels
* sizeof(void *),
1236 /* SSIDs come after channels */
1237 creq
->ssids
= (void *)&creq
->channels
[n_channels
];
1238 creq
->n_channels
= n_channels
;
1241 /* Scan all available channels */
1243 for (band
= 0; band
< IEEE80211_NUM_BANDS
; band
++) {
1246 if (!wiphy
->bands
[band
])
1249 for (j
= 0; j
< wiphy
->bands
[band
]->n_channels
; j
++) {
1250 /* ignore disabled channels */
1251 if (wiphy
->bands
[band
]->channels
[j
].flags
&
1252 IEEE80211_CHAN_DISABLED
)
1255 creq
->channels
[i
] = &wiphy
->bands
[band
]->channels
[j
];
1260 /* Set real number of channels specified in creq->channels[] */
1261 creq
->n_channels
= i
;
1263 /* Scan for the SSID we're going to connect to */
1264 memcpy(creq
->ssids
[0].ssid
, sme
->ssid
, sme
->ssid_len
);
1265 creq
->ssids
[0].ssid_len
= sme
->ssid_len
;
1267 /* No channels found... */
1275 static int lbs_cfg_connect(struct wiphy
*wiphy
, struct net_device
*dev
,
1276 struct cfg80211_connect_params
*sme
)
1278 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1279 struct cfg80211_bss
*bss
= NULL
;
1281 u8 preamble
= RADIO_PREAMBLE_SHORT
;
1283 lbs_deb_enter(LBS_DEB_CFG80211
);
1286 /* Run a scan if one isn't in-progress already and if the last
1287 * scan was done more than 2 seconds ago.
1289 if (priv
->scan_req
== NULL
&&
1290 time_after(jiffies
, priv
->last_scan
+ (2 * HZ
))) {
1291 struct cfg80211_scan_request
*creq
;
1293 creq
= _new_connect_scan_req(wiphy
, sme
);
1299 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1300 _internal_start_scan(priv
, true, creq
);
1303 /* Wait for any in-progress scan to complete */
1304 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1305 wait_event_interruptible_timeout(priv
->scan_q
,
1306 (priv
->scan_req
== NULL
),
1308 lbs_deb_assoc("assoc: scanning competed\n");
1311 /* Find the BSS we want using available scan results */
1312 bss
= cfg80211_get_bss(wiphy
, sme
->channel
, sme
->bssid
,
1313 sme
->ssid
, sme
->ssid_len
,
1314 WLAN_CAPABILITY_ESS
, WLAN_CAPABILITY_ESS
);
1316 lbs_pr_err("assoc: bss %pM not in scan results\n",
1321 lbs_deb_assoc("trying %pM\n", bss
->bssid
);
1322 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1323 sme
->crypto
.cipher_group
,
1324 sme
->key_idx
, sme
->key_len
);
1326 /* As this is a new connection, clear locally stored WEP keys */
1327 priv
->wep_tx_key
= 0;
1328 memset(priv
->wep_key
, 0, sizeof(priv
->wep_key
));
1329 memset(priv
->wep_key_len
, 0, sizeof(priv
->wep_key_len
));
1331 /* set/remove WEP keys */
1332 switch (sme
->crypto
.cipher_group
) {
1333 case WLAN_CIPHER_SUITE_WEP40
:
1334 case WLAN_CIPHER_SUITE_WEP104
:
1335 /* Store provided WEP keys in priv-> */
1336 priv
->wep_tx_key
= sme
->key_idx
;
1337 priv
->wep_key_len
[sme
->key_idx
] = sme
->key_len
;
1338 memcpy(priv
->wep_key
[sme
->key_idx
], sme
->key
, sme
->key_len
);
1339 /* Set WEP keys and WEP mode */
1340 lbs_set_wep_keys(priv
);
1341 priv
->mac_control
|= CMD_ACT_MAC_WEP_ENABLE
;
1342 lbs_set_mac_control(priv
);
1343 /* No RSN mode for WEP */
1344 lbs_enable_rsn(priv
, 0);
1346 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1348 * If we don't have no WEP, no WPA and no WPA2,
1349 * we remove all keys like in the WPA/WPA2 setup,
1350 * we just don't set RSN.
1352 * Therefore: fall-throught
1354 case WLAN_CIPHER_SUITE_TKIP
:
1355 case WLAN_CIPHER_SUITE_CCMP
:
1356 /* Remove WEP keys and WEP mode */
1357 lbs_remove_wep_keys(priv
);
1358 priv
->mac_control
&= ~CMD_ACT_MAC_WEP_ENABLE
;
1359 lbs_set_mac_control(priv
);
1361 /* clear the WPA/WPA2 keys */
1362 lbs_set_key_material(priv
,
1363 KEY_TYPE_ID_WEP
, /* doesn't matter */
1364 KEY_INFO_WPA_UNICAST
,
1366 lbs_set_key_material(priv
,
1367 KEY_TYPE_ID_WEP
, /* doesn't matter */
1370 /* RSN mode for WPA/WPA2 */
1371 lbs_enable_rsn(priv
, sme
->crypto
.cipher_group
!= 0);
1374 lbs_pr_err("unsupported cipher group 0x%x\n",
1375 sme
->crypto
.cipher_group
);
1380 lbs_set_authtype(priv
, sme
);
1381 lbs_set_radio(priv
, preamble
, 1);
1383 /* Do the actual association */
1384 ret
= lbs_associate(priv
, bss
, sme
);
1388 cfg80211_put_bss(bss
);
1389 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1393 static int lbs_cfg_disconnect(struct wiphy
*wiphy
, struct net_device
*dev
,
1396 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1397 struct cmd_ds_802_11_deauthenticate cmd
;
1399 lbs_deb_enter_args(LBS_DEB_CFG80211
, "reason_code %d", reason_code
);
1401 /* store for lbs_cfg_ret_disconnect() */
1402 priv
->disassoc_reason
= reason_code
;
1404 memset(&cmd
, 0, sizeof(cmd
));
1405 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1406 /* Mildly ugly to use a locally store my own BSSID ... */
1407 memcpy(cmd
.macaddr
, &priv
->assoc_bss
, ETH_ALEN
);
1408 cmd
.reasoncode
= cpu_to_le16(reason_code
);
1410 if (lbs_cmd_with_response(priv
, CMD_802_11_DEAUTHENTICATE
, &cmd
))
1413 cfg80211_disconnected(priv
->dev
,
1414 priv
->disassoc_reason
,
1417 priv
->connect_status
= LBS_DISCONNECTED
;
1423 static int lbs_cfg_set_default_key(struct wiphy
*wiphy
,
1424 struct net_device
*netdev
,
1427 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1429 lbs_deb_enter(LBS_DEB_CFG80211
);
1431 if (key_index
!= priv
->wep_tx_key
) {
1432 lbs_deb_assoc("set_default_key: to %d\n", key_index
);
1433 priv
->wep_tx_key
= key_index
;
1434 lbs_set_wep_keys(priv
);
1441 static int lbs_cfg_add_key(struct wiphy
*wiphy
, struct net_device
*netdev
,
1442 u8 idx
, bool pairwise
, const u8
*mac_addr
,
1443 struct key_params
*params
)
1445 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1450 lbs_deb_enter(LBS_DEB_CFG80211
);
1452 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1453 params
->cipher
, mac_addr
);
1454 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1455 idx
, params
->key_len
);
1456 if (params
->key_len
)
1457 lbs_deb_hex(LBS_DEB_CFG80211
, "KEY",
1458 params
->key
, params
->key_len
);
1460 lbs_deb_assoc("add_key: seq len %d\n", params
->seq_len
);
1461 if (params
->seq_len
)
1462 lbs_deb_hex(LBS_DEB_CFG80211
, "SEQ",
1463 params
->seq
, params
->seq_len
);
1465 switch (params
->cipher
) {
1466 case WLAN_CIPHER_SUITE_WEP40
:
1467 case WLAN_CIPHER_SUITE_WEP104
:
1468 /* actually compare if something has changed ... */
1469 if ((priv
->wep_key_len
[idx
] != params
->key_len
) ||
1470 memcmp(priv
->wep_key
[idx
],
1471 params
->key
, params
->key_len
) != 0) {
1472 priv
->wep_key_len
[idx
] = params
->key_len
;
1473 memcpy(priv
->wep_key
[idx
],
1474 params
->key
, params
->key_len
);
1475 lbs_set_wep_keys(priv
);
1478 case WLAN_CIPHER_SUITE_TKIP
:
1479 case WLAN_CIPHER_SUITE_CCMP
:
1480 key_info
= KEY_INFO_WPA_ENABLED
| ((idx
== 0)
1481 ? KEY_INFO_WPA_UNICAST
1482 : KEY_INFO_WPA_MCAST
);
1483 key_type
= (params
->cipher
== WLAN_CIPHER_SUITE_TKIP
)
1486 lbs_set_key_material(priv
,
1489 params
->key
, params
->key_len
);
1492 lbs_pr_err("unhandled cipher 0x%x\n", params
->cipher
);
1501 static int lbs_cfg_del_key(struct wiphy
*wiphy
, struct net_device
*netdev
,
1502 u8 key_index
, bool pairwise
, const u8
*mac_addr
)
1505 lbs_deb_enter(LBS_DEB_CFG80211
);
1507 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1508 key_index
, mac_addr
);
1511 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1513 * I think can keep this a NO-OP, because:
1515 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1516 * - neither "iw" nor "wpa_supplicant" won't call this during
1517 * an ongoing connection
1518 * - TODO: but I have to check if this is still true when
1519 * I set the AP to periodic re-keying
1520 * - we've not kzallec() something when we've added a key at
1521 * lbs_cfg_connect() or lbs_cfg_add_key().
1523 * This causes lbs_cfg_del_key() only called at disconnect time,
1524 * where we'd just waste time deleting a key that is not going
1525 * to be used anyway.
1527 if (key_index
< 3 && priv
->wep_key_len
[key_index
]) {
1528 priv
->wep_key_len
[key_index
] = 0;
1529 lbs_set_wep_keys(priv
);
1537 /***************************************************************************
1541 static int lbs_cfg_get_station(struct wiphy
*wiphy
, struct net_device
*dev
,
1542 u8
*mac
, struct station_info
*sinfo
)
1544 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1549 lbs_deb_enter(LBS_DEB_CFG80211
);
1551 sinfo
->filled
|= STATION_INFO_TX_BYTES
|
1552 STATION_INFO_TX_PACKETS
|
1553 STATION_INFO_RX_BYTES
|
1554 STATION_INFO_RX_PACKETS
;
1555 sinfo
->tx_bytes
= priv
->dev
->stats
.tx_bytes
;
1556 sinfo
->tx_packets
= priv
->dev
->stats
.tx_packets
;
1557 sinfo
->rx_bytes
= priv
->dev
->stats
.rx_bytes
;
1558 sinfo
->rx_packets
= priv
->dev
->stats
.rx_packets
;
1560 /* Get current RSSI */
1561 ret
= lbs_get_rssi(priv
, &signal
, &noise
);
1563 sinfo
->signal
= signal
;
1564 sinfo
->filled
|= STATION_INFO_SIGNAL
;
1567 /* Convert priv->cur_rate from hw_value to NL80211 value */
1568 for (i
= 0; i
< ARRAY_SIZE(lbs_rates
); i
++) {
1569 if (priv
->cur_rate
== lbs_rates
[i
].hw_value
) {
1570 sinfo
->txrate
.legacy
= lbs_rates
[i
].bitrate
;
1571 sinfo
->filled
|= STATION_INFO_TX_BITRATE
;
1582 /***************************************************************************
1583 * "Site survey", here just current channel and noise level
1586 static int lbs_get_survey(struct wiphy
*wiphy
, struct net_device
*dev
,
1587 int idx
, struct survey_info
*survey
)
1589 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1596 lbs_deb_enter(LBS_DEB_CFG80211
);
1598 survey
->channel
= ieee80211_get_channel(wiphy
,
1599 ieee80211_channel_to_frequency(priv
->channel
));
1601 ret
= lbs_get_rssi(priv
, &signal
, &noise
);
1603 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
1604 survey
->noise
= noise
;
1607 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1614 /***************************************************************************
1618 static int lbs_change_intf(struct wiphy
*wiphy
, struct net_device
*dev
,
1619 enum nl80211_iftype type
, u32
*flags
,
1620 struct vif_params
*params
)
1622 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1625 lbs_deb_enter(LBS_DEB_CFG80211
);
1628 case NL80211_IFTYPE_MONITOR
:
1629 ret
= lbs_set_monitor_mode(priv
, 1);
1631 case NL80211_IFTYPE_STATION
:
1632 if (priv
->wdev
->iftype
== NL80211_IFTYPE_MONITOR
)
1633 ret
= lbs_set_monitor_mode(priv
, 0);
1635 ret
= lbs_set_snmp_mib(priv
, SNMP_MIB_OID_BSS_TYPE
, 1);
1637 case NL80211_IFTYPE_ADHOC
:
1638 if (priv
->wdev
->iftype
== NL80211_IFTYPE_MONITOR
)
1639 ret
= lbs_set_monitor_mode(priv
, 0);
1641 ret
= lbs_set_snmp_mib(priv
, SNMP_MIB_OID_BSS_TYPE
, 2);
1648 priv
->wdev
->iftype
= type
;
1650 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1656 /***************************************************************************
1660 /* The firmware needs the following bits masked out of the beacon-derived
1661 * capability field when associating/joining to a BSS:
1662 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1664 #define CAPINFO_MASK (~(0xda00))
1667 static void lbs_join_post(struct lbs_private
*priv
,
1668 struct cfg80211_ibss_params
*params
,
1669 u8
*bssid
, u16 capability
)
1671 u8 fake_ie
[2 + IEEE80211_MAX_SSID_LEN
+ /* ssid */
1672 2 + 4 + /* basic rates */
1673 2 + 1 + /* DS parameter */
1675 2 + 8]; /* extended rates */
1678 lbs_deb_enter(LBS_DEB_CFG80211
);
1681 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1682 * the real IE from the firmware. So we fabricate a fake IE based on
1683 * what the firmware actually sends (sniffed with wireshark).
1686 *fake
++ = WLAN_EID_SSID
;
1687 *fake
++ = params
->ssid_len
;
1688 memcpy(fake
, params
->ssid
, params
->ssid_len
);
1689 fake
+= params
->ssid_len
;
1690 /* Fake supported basic rates IE */
1691 *fake
++ = WLAN_EID_SUPP_RATES
;
1697 /* Fake DS channel IE */
1698 *fake
++ = WLAN_EID_DS_PARAMS
;
1700 *fake
++ = params
->channel
->hw_value
;
1701 /* Fake IBSS params IE */
1702 *fake
++ = WLAN_EID_IBSS_PARAMS
;
1704 *fake
++ = 0; /* ATIM=0 */
1706 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1707 * but I don't know how this could be checked */
1708 *fake
++ = WLAN_EID_EXT_SUPP_RATES
;
1718 lbs_deb_hex(LBS_DEB_CFG80211
, "IE", fake_ie
, fake
- fake_ie
);
1720 cfg80211_inform_bss(priv
->wdev
->wiphy
,
1725 params
->beacon_interval
,
1726 fake_ie
, fake
- fake_ie
,
1729 memcpy(priv
->wdev
->ssid
, params
->ssid
, params
->ssid_len
);
1730 priv
->wdev
->ssid_len
= params
->ssid_len
;
1732 cfg80211_ibss_joined(priv
->dev
, bssid
, GFP_KERNEL
);
1734 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1735 priv
->connect_status
= LBS_CONNECTED
;
1736 netif_carrier_on(priv
->dev
);
1737 if (!priv
->tx_pending_len
)
1738 netif_wake_queue(priv
->dev
);
1740 lbs_deb_leave(LBS_DEB_CFG80211
);
1743 static int lbs_ibss_join_existing(struct lbs_private
*priv
,
1744 struct cfg80211_ibss_params
*params
,
1745 struct cfg80211_bss
*bss
)
1747 const u8
*rates_eid
= ieee80211_bss_get_ie(bss
, WLAN_EID_SUPP_RATES
);
1748 struct cmd_ds_802_11_ad_hoc_join cmd
;
1749 u8 preamble
= RADIO_PREAMBLE_SHORT
;
1752 lbs_deb_enter(LBS_DEB_CFG80211
);
1754 /* TODO: set preamble based on scan result */
1755 ret
= lbs_set_radio(priv
, preamble
, 1);
1760 * Example CMD_802_11_AD_HOC_JOIN command:
1762 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1766 * bssid 02 27 27 97 2f 96
1767 * ssid 49 42 53 53 00 00 00 00
1768 * 00 00 00 00 00 00 00 00
1769 * 00 00 00 00 00 00 00 00
1770 * 00 00 00 00 00 00 00 00
1771 * type 02 CMD_BSS_TYPE_IBSS
1772 * beacon period 64 00
1774 * timestamp 00 00 00 00 00 00 00 00
1775 * localtime 00 00 00 00 00 00 00 00
1779 * reserveed 00 00 00 00
1782 * IE IBSS atim 00 00
1783 * reserved 00 00 00 00
1785 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1786 * fail timeout ff 00
1789 memset(&cmd
, 0, sizeof(cmd
));
1790 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1792 memcpy(cmd
.bss
.bssid
, bss
->bssid
, ETH_ALEN
);
1793 memcpy(cmd
.bss
.ssid
, params
->ssid
, params
->ssid_len
);
1794 cmd
.bss
.type
= CMD_BSS_TYPE_IBSS
;
1795 cmd
.bss
.beaconperiod
= cpu_to_le16(params
->beacon_interval
);
1796 cmd
.bss
.ds
.header
.id
= WLAN_EID_DS_PARAMS
;
1797 cmd
.bss
.ds
.header
.len
= 1;
1798 cmd
.bss
.ds
.channel
= params
->channel
->hw_value
;
1799 cmd
.bss
.ibss
.header
.id
= WLAN_EID_IBSS_PARAMS
;
1800 cmd
.bss
.ibss
.header
.len
= 2;
1801 cmd
.bss
.ibss
.atimwindow
= 0;
1802 cmd
.bss
.capability
= cpu_to_le16(bss
->capability
& CAPINFO_MASK
);
1804 /* set rates to the intersection of our rates and the rates in the
1807 lbs_add_rates(cmd
.bss
.rates
);
1810 u8 rates_max
= rates_eid
[1];
1811 u8
*rates
= cmd
.bss
.rates
;
1812 for (hw
= 0; hw
< ARRAY_SIZE(lbs_rates
); hw
++) {
1813 u8 hw_rate
= lbs_rates
[hw
].bitrate
/ 5;
1814 for (i
= 0; i
< rates_max
; i
++) {
1815 if (hw_rate
== (rates_eid
[i
+2] & 0x7f)) {
1816 u8 rate
= rates_eid
[i
+2];
1817 if (rate
== 0x02 || rate
== 0x04 ||
1818 rate
== 0x0b || rate
== 0x16)
1826 /* Only v8 and below support setting this */
1827 if (MRVL_FW_MAJOR_REV(priv
->fwrelease
) <= 8) {
1828 cmd
.failtimeout
= cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT
);
1829 cmd
.probedelay
= cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME
);
1831 ret
= lbs_cmd_with_response(priv
, CMD_802_11_AD_HOC_JOIN
, &cmd
);
1836 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1844 lbs_join_post(priv
, params
, bss
->bssid
, bss
->capability
);
1847 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1853 static int lbs_ibss_start_new(struct lbs_private
*priv
,
1854 struct cfg80211_ibss_params
*params
)
1856 struct cmd_ds_802_11_ad_hoc_start cmd
;
1857 struct cmd_ds_802_11_ad_hoc_result
*resp
=
1858 (struct cmd_ds_802_11_ad_hoc_result
*) &cmd
;
1859 u8 preamble
= RADIO_PREAMBLE_SHORT
;
1863 lbs_deb_enter(LBS_DEB_CFG80211
);
1865 ret
= lbs_set_radio(priv
, preamble
, 1);
1870 * Example CMD_802_11_AD_HOC_START command:
1872 * command 2b 00 CMD_802_11_AD_HOC_START
1876 * ssid 54 45 53 54 00 00 00 00
1877 * 00 00 00 00 00 00 00 00
1878 * 00 00 00 00 00 00 00 00
1879 * 00 00 00 00 00 00 00 00
1881 * beacon period 64 00
1885 * IE IBSS atim 00 00
1886 * reserved 00 00 00 00
1890 * reserved 00 00 00 00
1893 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1894 * 0c 12 18 24 30 48 60 6c
1897 memset(&cmd
, 0, sizeof(cmd
));
1898 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1899 memcpy(cmd
.ssid
, params
->ssid
, params
->ssid_len
);
1900 cmd
.bsstype
= CMD_BSS_TYPE_IBSS
;
1901 cmd
.beaconperiod
= cpu_to_le16(params
->beacon_interval
);
1902 cmd
.ibss
.header
.id
= WLAN_EID_IBSS_PARAMS
;
1903 cmd
.ibss
.header
.len
= 2;
1904 cmd
.ibss
.atimwindow
= 0;
1905 cmd
.ds
.header
.id
= WLAN_EID_DS_PARAMS
;
1906 cmd
.ds
.header
.len
= 1;
1907 cmd
.ds
.channel
= params
->channel
->hw_value
;
1908 /* Only v8 and below support setting probe delay */
1909 if (MRVL_FW_MAJOR_REV(priv
->fwrelease
) <= 8)
1910 cmd
.probedelay
= cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME
);
1911 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1912 capability
= WLAN_CAPABILITY_IBSS
;
1913 cmd
.capability
= cpu_to_le16(capability
);
1914 lbs_add_rates(cmd
.rates
);
1917 ret
= lbs_cmd_with_response(priv
, CMD_802_11_AD_HOC_START
, &cmd
);
1922 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1929 * bssid 02 2b 7b 0f 86 0e
1931 lbs_join_post(priv
, params
, resp
->bssid
, capability
);
1934 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1939 static int lbs_join_ibss(struct wiphy
*wiphy
, struct net_device
*dev
,
1940 struct cfg80211_ibss_params
*params
)
1942 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1944 struct cfg80211_bss
*bss
;
1945 DECLARE_SSID_BUF(ssid_buf
);
1947 lbs_deb_enter(LBS_DEB_CFG80211
);
1949 if (!params
->channel
) {
1954 ret
= lbs_set_channel(priv
, params
->channel
->hw_value
);
1958 /* Search if someone is beaconing. This assumes that the
1959 * bss list is populated already */
1960 bss
= cfg80211_get_bss(wiphy
, params
->channel
, params
->bssid
,
1961 params
->ssid
, params
->ssid_len
,
1962 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
1965 ret
= lbs_ibss_join_existing(priv
, params
, bss
);
1966 cfg80211_put_bss(bss
);
1968 ret
= lbs_ibss_start_new(priv
, params
);
1972 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1977 static int lbs_leave_ibss(struct wiphy
*wiphy
, struct net_device
*dev
)
1979 struct lbs_private
*priv
= wiphy_priv(wiphy
);
1980 struct cmd_ds_802_11_ad_hoc_stop cmd
;
1983 lbs_deb_enter(LBS_DEB_CFG80211
);
1985 memset(&cmd
, 0, sizeof(cmd
));
1986 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1987 ret
= lbs_cmd_with_response(priv
, CMD_802_11_AD_HOC_STOP
, &cmd
);
1989 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
1990 lbs_mac_event_disconnected(priv
);
1992 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
1999 /***************************************************************************
2003 static struct cfg80211_ops lbs_cfg80211_ops
= {
2004 .set_channel
= lbs_cfg_set_channel
,
2005 .scan
= lbs_cfg_scan
,
2006 .connect
= lbs_cfg_connect
,
2007 .disconnect
= lbs_cfg_disconnect
,
2008 .add_key
= lbs_cfg_add_key
,
2009 .del_key
= lbs_cfg_del_key
,
2010 .set_default_key
= lbs_cfg_set_default_key
,
2011 .get_station
= lbs_cfg_get_station
,
2012 .dump_survey
= lbs_get_survey
,
2013 .change_virtual_intf
= lbs_change_intf
,
2014 .join_ibss
= lbs_join_ibss
,
2015 .leave_ibss
= lbs_leave_ibss
,
2020 * At this time lbs_private *priv doesn't even exist, so we just allocate
2021 * memory and don't initialize the wiphy further. This is postponed until we
2022 * can talk to the firmware and happens at registration time in
2023 * lbs_cfg_wiphy_register().
2025 struct wireless_dev
*lbs_cfg_alloc(struct device
*dev
)
2028 struct wireless_dev
*wdev
;
2030 lbs_deb_enter(LBS_DEB_CFG80211
);
2032 wdev
= kzalloc(sizeof(struct wireless_dev
), GFP_KERNEL
);
2034 dev_err(dev
, "cannot allocate wireless device\n");
2035 return ERR_PTR(-ENOMEM
);
2038 wdev
->wiphy
= wiphy_new(&lbs_cfg80211_ops
, sizeof(struct lbs_private
));
2040 dev_err(dev
, "cannot allocate wiphy\n");
2045 lbs_deb_leave(LBS_DEB_CFG80211
);
2050 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
2051 return ERR_PTR(ret
);
2055 static void lbs_cfg_set_regulatory_hint(struct lbs_private
*priv
)
2057 struct region_code_mapping
{
2062 /* Section 5.17.2 */
2063 static const struct region_code_mapping regmap
[] = {
2064 {"US ", 0x10}, /* US FCC */
2065 {"CA ", 0x20}, /* Canada */
2066 {"EU ", 0x30}, /* ETSI */
2067 {"ES ", 0x31}, /* Spain */
2068 {"FR ", 0x32}, /* France */
2069 {"JP ", 0x40}, /* Japan */
2073 lbs_deb_enter(LBS_DEB_CFG80211
);
2075 for (i
= 0; i
< ARRAY_SIZE(regmap
); i
++)
2076 if (regmap
[i
].code
== priv
->regioncode
) {
2077 regulatory_hint(priv
->wdev
->wiphy
, regmap
[i
].cn
);
2081 lbs_deb_leave(LBS_DEB_CFG80211
);
2086 * This function get's called after lbs_setup_firmware() determined the
2087 * firmware capabities. So we can setup the wiphy according to our
2088 * hardware/firmware.
2090 int lbs_cfg_register(struct lbs_private
*priv
)
2092 struct wireless_dev
*wdev
= priv
->wdev
;
2095 lbs_deb_enter(LBS_DEB_CFG80211
);
2097 wdev
->wiphy
->max_scan_ssids
= 1;
2098 wdev
->wiphy
->signal_type
= CFG80211_SIGNAL_TYPE_MBM
;
2100 wdev
->wiphy
->interface_modes
=
2101 BIT(NL80211_IFTYPE_STATION
) |
2102 BIT(NL80211_IFTYPE_ADHOC
);
2103 if (lbs_rtap_supported(priv
))
2104 wdev
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_MONITOR
);
2106 wdev
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &lbs_band_2ghz
;
2109 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2110 * never seen a firmware without WPA
2112 wdev
->wiphy
->cipher_suites
= cipher_suites
;
2113 wdev
->wiphy
->n_cipher_suites
= ARRAY_SIZE(cipher_suites
);
2114 wdev
->wiphy
->reg_notifier
= lbs_reg_notifier
;
2116 ret
= wiphy_register(wdev
->wiphy
);
2118 lbs_pr_err("cannot register wiphy device\n");
2120 priv
->wiphy_registered
= true;
2122 ret
= register_netdev(priv
->dev
);
2124 lbs_pr_err("cannot register network device\n");
2126 INIT_DELAYED_WORK(&priv
->scan_work
, lbs_scan_worker
);
2128 lbs_cfg_set_regulatory_hint(priv
);
2130 lbs_deb_leave_args(LBS_DEB_CFG80211
, "ret %d", ret
);
2134 int lbs_reg_notifier(struct wiphy
*wiphy
,
2135 struct regulatory_request
*request
)
2137 struct lbs_private
*priv
= wiphy_priv(wiphy
);
2140 lbs_deb_enter_args(LBS_DEB_CFG80211
, "cfg80211 regulatory domain "
2141 "callback for domain %c%c\n", request
->alpha2
[0],
2142 request
->alpha2
[1]);
2144 ret
= lbs_set_11d_domain_info(priv
, request
, wiphy
->bands
);
2146 lbs_deb_leave(LBS_DEB_CFG80211
);
2150 void lbs_scan_deinit(struct lbs_private
*priv
)
2152 lbs_deb_enter(LBS_DEB_CFG80211
);
2153 cancel_delayed_work_sync(&priv
->scan_work
);
2157 void lbs_cfg_free(struct lbs_private
*priv
)
2159 struct wireless_dev
*wdev
= priv
->wdev
;
2161 lbs_deb_enter(LBS_DEB_CFG80211
);
2166 if (priv
->wiphy_registered
)
2167 wiphy_unregister(wdev
->wiphy
);
2170 wiphy_free(wdev
->wiphy
);