1 /*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
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.
7 *
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 ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #ifndef BRCMFMAC_CFG80211_H
18 #define BRCMFMAC_CFG80211_H
19
20 /* for brcmu_d11inf */
21 #include <brcmu_d11.h>
22
23 #define WL_NUM_SCAN_MAX 10
24 #define WL_NUM_PMKIDS_MAX MAXPMKID
25 #define WL_TLV_INFO_MAX 1024
26 #define WL_BSS_INFO_MAX 2048
27 #define WL_ASSOC_INFO_MAX 512 /* assoc related fil max buf */
28 #define WL_EXTRA_BUF_MAX 2048
29 #define WL_ROAM_TRIGGER_LEVEL -75
30 #define WL_ROAM_DELTA 20
31 #define WL_BEACON_TIMEOUT 3
32
33 #define WL_SCAN_CHANNEL_TIME 40
34 #define WL_SCAN_UNASSOC_TIME 40
35 #define WL_SCAN_PASSIVE_TIME 120
36
37 #define WL_ESCAN_BUF_SIZE (1024 * 64)
38 #define WL_ESCAN_TIMER_INTERVAL_MS 10000 /* E-Scan timeout */
39
40 #define WL_ESCAN_ACTION_START 1
41 #define WL_ESCAN_ACTION_CONTINUE 2
42 #define WL_ESCAN_ACTION_ABORT 3
43
44 #define WL_AUTH_SHARED_KEY 1 /* d11 shared authentication */
45 #define IE_MAX_LEN 512
46
47 /* IE TLV processing */
48 #define TLV_LEN_OFF 1 /* length offset */
49 #define TLV_HDR_LEN 2 /* header length */
50 #define TLV_BODY_OFF 2 /* body offset */
51 #define TLV_OUI_LEN 3 /* oui id length */
52
53 /* 802.11 Mgmt Packet flags */
54 #define BRCMF_VNDR_IE_BEACON_FLAG 0x1
55 #define BRCMF_VNDR_IE_PRBRSP_FLAG 0x2
56 #define BRCMF_VNDR_IE_ASSOCRSP_FLAG 0x4
57 #define BRCMF_VNDR_IE_AUTHRSP_FLAG 0x8
58 #define BRCMF_VNDR_IE_PRBREQ_FLAG 0x10
59 #define BRCMF_VNDR_IE_ASSOCREQ_FLAG 0x20
60 /* vendor IE in IW advertisement protocol ID field */
61 #define BRCMF_VNDR_IE_IWAPID_FLAG 0x40
62 /* allow custom IE id */
63 #define BRCMF_VNDR_IE_CUSTOM_FLAG 0x100
64
65 /* P2P Action Frames flags (spec ordered) */
66 #define BRCMF_VNDR_IE_GONREQ_FLAG 0x001000
67 #define BRCMF_VNDR_IE_GONRSP_FLAG 0x002000
68 #define BRCMF_VNDR_IE_GONCFM_FLAG 0x004000
69 #define BRCMF_VNDR_IE_INVREQ_FLAG 0x008000
70 #define BRCMF_VNDR_IE_INVRSP_FLAG 0x010000
71 #define BRCMF_VNDR_IE_DISREQ_FLAG 0x020000
72 #define BRCMF_VNDR_IE_DISRSP_FLAG 0x040000
73 #define BRCMF_VNDR_IE_PRDREQ_FLAG 0x080000
74 #define BRCMF_VNDR_IE_PRDRSP_FLAG 0x100000
75
76 #define BRCMF_VNDR_IE_P2PAF_SHIFT 12
77
78 #define BRCMF_MAX_DEFAULT_KEYS 4
79
80
81 /**
82 * enum brcmf_scan_status - scan engine status
83 *
84 * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
85 * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
86 * @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
87 */
88 enum brcmf_scan_status {
89 BRCMF_SCAN_STATUS_BUSY,
90 BRCMF_SCAN_STATUS_ABORT,
91 BRCMF_SCAN_STATUS_SUPPRESS,
92 };
93
94 /* dongle configuration */
95 struct brcmf_cfg80211_conf {
96 u32 frag_threshold;
97 u32 rts_threshold;
98 u32 retry_short;
99 u32 retry_long;
100 s32 tx_power;
101 struct ieee80211_channel channel;
102 };
103
104 /* basic structure of scan request */
105 struct brcmf_cfg80211_scan_req {
106 struct brcmf_ssid_le ssid_le;
107 };
108
109 /* basic structure of information element */
110 struct brcmf_cfg80211_ie {
111 u16 offset;
112 u8 buf[WL_TLV_INFO_MAX];
113 };
114
115 /* security information with currently associated ap */
116 struct brcmf_cfg80211_security {
117 u32 wpa_versions;
118 u32 auth_type;
119 u32 cipher_pairwise;
120 u32 cipher_group;
121 u32 wpa_auth;
122 };
123
124 /**
125 * struct brcmf_cfg80211_profile - profile information.
126 *
127 * @ssid: ssid of associated/associating ap.
128 * @bssid: bssid of joined/joining ibss.
129 * @sec: security information.
130 * @key: key information
131 */
132 struct brcmf_cfg80211_profile {
133 struct brcmf_ssid ssid;
134 u8 bssid[ETH_ALEN];
135 struct brcmf_cfg80211_security sec;
136 struct brcmf_wsec_key key[BRCMF_MAX_DEFAULT_KEYS];
137 };
138
139 /**
140 * enum brcmf_vif_status - bit indices for vif status.
141 *
142 * @BRCMF_VIF_STATUS_READY: ready for operation.
143 * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
144 * @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
145 * @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
146 * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
147 */
148 enum brcmf_vif_status {
149 BRCMF_VIF_STATUS_READY,
150 BRCMF_VIF_STATUS_CONNECTING,
151 BRCMF_VIF_STATUS_CONNECTED,
152 BRCMF_VIF_STATUS_DISCONNECTING,
153 BRCMF_VIF_STATUS_AP_CREATED
154 };
155
156 /**
157 * struct vif_saved_ie - holds saved IEs for a virtual interface.
158 *
159 * @probe_req_ie: IE info for probe request.
160 * @probe_res_ie: IE info for probe response.
161 * @beacon_ie: IE info for beacon frame.
162 * @probe_req_ie_len: IE info length for probe request.
163 * @probe_res_ie_len: IE info length for probe response.
164 * @beacon_ie_len: IE info length for beacon frame.
165 */
166 struct vif_saved_ie {
167 u8 probe_req_ie[IE_MAX_LEN];
168 u8 probe_res_ie[IE_MAX_LEN];
169 u8 beacon_ie[IE_MAX_LEN];
170 u8 assoc_req_ie[IE_MAX_LEN];
171 u32 probe_req_ie_len;
172 u32 probe_res_ie_len;
173 u32 beacon_ie_len;
174 u32 assoc_req_ie_len;
175 };
176
177 /**
178 * struct brcmf_cfg80211_vif - virtual interface specific information.
179 *
180 * @ifp: lower layer interface pointer
181 * @wdev: wireless device.
182 * @profile: profile information.
183 * @roam_off: roaming state.
184 * @sme_state: SME state using enum brcmf_vif_status bits.
185 * @pm_block: power-management blocked.
186 * @list: linked list.
187 * @mgmt_rx_reg: registered rx mgmt frame types.
188 * @mbss: Multiple BSS type, set if not first AP (not relevant for P2P).
189 */
190 struct brcmf_cfg80211_vif {
191 struct brcmf_if *ifp;
192 struct wireless_dev wdev;
193 struct brcmf_cfg80211_profile profile;
194 s32 roam_off;
195 unsigned long sme_state;
196 bool pm_block;
197 struct vif_saved_ie saved_ie;
198 struct list_head list;
199 u16 mgmt_rx_reg;
200 bool mbss;
201 int is_11d;
202 };
203
204 /* association inform */
205 struct brcmf_cfg80211_connect_info {
206 u8 *req_ie;
207 s32 req_ie_len;
208 u8 *resp_ie;
209 s32 resp_ie_len;
210 };
211
212 /* assoc ie length */
213 struct brcmf_cfg80211_assoc_ielen_le {
214 __le32 req_len;
215 __le32 resp_len;
216 };
217
218 /* wpa2 pmk list */
219 struct brcmf_cfg80211_pmk_list {
220 struct pmkid_list pmkids;
221 struct pmkid foo[MAXPMKID - 1];
222 };
223
224 /* dongle escan state */
225 enum wl_escan_state {
226 WL_ESCAN_STATE_IDLE,
227 WL_ESCAN_STATE_SCANNING
228 };
229
230 struct escan_info {
231 u32 escan_state;
232 u8 escan_buf[WL_ESCAN_BUF_SIZE];
233 struct wiphy *wiphy;
234 struct brcmf_if *ifp;
235 s32 (*run)(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
236 struct cfg80211_scan_request *request, u16 action);
237 };
238
239 /**
240 * struct brcmf_pno_param_le - PNO scan configuration parameters
241 *
242 * @version: PNO parameters version.
243 * @scan_freq: scan frequency.
244 * @lost_network_timeout: #sec. to declare discovered network as lost.
245 * @flags: Bit field to control features of PFN such as sort criteria auto
246 * enable switch and background scan.
247 * @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
248 * criteria.
249 * @bestn: number of best networks in each scan.
250 * @mscan: number of scans recorded.
251 * @repeat: minimum number of scan intervals before scan frequency changes
252 * in adaptive scan.
253 * @exp: exponent of 2 for maximum scan interval.
254 * @slow_freq: slow scan period.
255 */
256 struct brcmf_pno_param_le {
257 __le32 version;
258 __le32 scan_freq;
259 __le32 lost_network_timeout;
260 __le16 flags;
261 __le16 rssi_margin;
262 u8 bestn;
263 u8 mscan;
264 u8 repeat;
265 u8 exp;
266 __le32 slow_freq;
267 };
268
269 /**
270 * struct brcmf_pno_net_param_le - scan parameters per preferred network.
271 *
272 * @ssid: ssid name and its length.
273 * @flags: bit2: hidden.
274 * @infra: BSS vs IBSS.
275 * @auth: Open vs Closed.
276 * @wpa_auth: WPA type.
277 * @wsec: wsec value.
278 */
279 struct brcmf_pno_net_param_le {
280 struct brcmf_ssid_le ssid;
281 __le32 flags;
282 __le32 infra;
283 __le32 auth;
284 __le32 wpa_auth;
285 __le32 wsec;
286 };
287
288 /**
289 * struct brcmf_pno_net_info_le - information per found network.
290 *
291 * @bssid: BSS network identifier.
292 * @channel: channel number only.
293 * @SSID_len: length of ssid.
294 * @SSID: ssid characters.
295 * @RSSI: receive signal strength (in dBm).
296 * @timestamp: age in seconds.
297 */
298 struct brcmf_pno_net_info_le {
299 u8 bssid[ETH_ALEN];
300 u8 channel;
301 u8 SSID_len;
302 u8 SSID[32];
303 __le16 RSSI;
304 __le16 timestamp;
305 };
306
307 /**
308 * struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
309 *
310 * @version: PNO version identifier.
311 * @status: indicates completion status of PNO scan.
312 * @count: amount of brcmf_pno_net_info_le entries appended.
313 */
314 struct brcmf_pno_scanresults_le {
315 __le32 version;
316 __le32 status;
317 __le32 count;
318 };
319
320 /**
321 * struct brcmf_cfg80211_vif_event - virtual interface event information.
322 *
323 * @vif_wq: waitqueue awaiting interface event from firmware.
324 * @vif_event_lock: protects other members in this structure.
325 * @vif_complete: completion for net attach.
326 * @action: either add, change, or delete.
327 * @vif: virtual interface object related to the event.
328 */
329 struct brcmf_cfg80211_vif_event {
330 wait_queue_head_t vif_wq;
331 struct mutex vif_event_lock;
332 u8 action;
333 struct brcmf_cfg80211_vif *vif;
334 };
335
336 /**
337 * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
338 *
339 * @wiphy: wiphy object for cfg80211 interface.
340 * @conf: dongle configuration.
341 * @p2p: peer-to-peer specific information.
342 * @btcoex: Bluetooth coexistence information.
343 * @scan_request: cfg80211 scan request object.
344 * @usr_sync: mainly for dongle up/down synchronization.
345 * @bss_list: bss_list holding scanned ap information.
346 * @scan_req_int: internal scan request object.
347 * @bss_info: bss information for cfg80211 layer.
348 * @ie: information element object for internal purpose.
349 * @conn_info: association info.
350 * @pmk_list: wpa2 pmk list.
351 * @scan_status: scan activity on the dongle.
352 * @pub: common driver information.
353 * @channel: current channel.
354 * @active_scan: current scan mode.
355 * @sched_escan: e-scan for scheduled scan support running.
356 * @ibss_starter: indicates this sta is ibss starter.
357 * @pwr_save: indicate whether dongle to support power save mode.
358 * @dongle_up: indicate whether dongle up or not.
359 * @roam_on: on/off switch for dongle self-roaming.
360 * @scan_tried: indicates if first scan attempted.
361 * @dcmd_buf: dcmd buffer.
362 * @extra_buf: mainly to grab assoc information.
363 * @debugfsdir: debugfs folder for this device.
364 * @escan_info: escan information.
365 * @escan_timeout: Timer for catch scan timeout.
366 * @escan_timeout_work: scan timeout worker.
367 * @escan_ioctl_buf: dongle command buffer for escan commands.
368 * @vif_list: linked list of vif instances.
369 * @vif_cnt: number of vif instances.
370 * @vif_event: vif event signalling.
371 * @wowl_enabled; set during suspend, is wowl used.
372 * @pre_wowl_pmmode: intermediate storage of pm mode during wowl.
373 */
374 struct brcmf_cfg80211_info {
375 struct wiphy *wiphy;
376 struct brcmf_cfg80211_conf *conf;
377 struct brcmf_p2p_info p2p;
378 struct brcmf_btcoex_info *btcoex;
379 struct cfg80211_scan_request *scan_request;
380 struct mutex usr_sync;
381 struct brcmf_cfg80211_scan_req scan_req_int;
382 struct wl_cfg80211_bss_info *bss_info;
383 struct brcmf_cfg80211_ie ie;
384 struct brcmf_cfg80211_connect_info conn_info;
385 struct brcmf_cfg80211_pmk_list *pmk_list;
386 unsigned long scan_status;
387 struct brcmf_pub *pub;
388 u32 channel;
389 bool active_scan;
390 bool sched_escan;
391 bool ibss_starter;
392 bool pwr_save;
393 bool dongle_up;
394 bool scan_tried;
395 u8 *dcmd_buf;
396 u8 *extra_buf;
397 struct dentry *debugfsdir;
398 struct escan_info escan_info;
399 struct timer_list escan_timeout;
400 struct work_struct escan_timeout_work;
401 u8 *escan_ioctl_buf;
402 struct list_head vif_list;
403 struct brcmf_cfg80211_vif_event vif_event;
404 struct completion vif_disabled;
405 struct brcmu_d11inf d11inf;
406 bool wowl_enabled;
407 u32 pre_wowl_pmmode;
408 struct brcmf_assoclist_le assoclist;
409 };
410
411 /**
412 * struct brcmf_tlv - tag_ID/length/value_buffer tuple.
413 *
414 * @id: tag identifier.
415 * @len: number of bytes in value buffer.
416 * @data: value buffer.
417 */
418 struct brcmf_tlv {
419 u8 id;
420 u8 len;
421 u8 data[1];
422 };
423
cfg_to_wiphy(struct brcmf_cfg80211_info * cfg)424 static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
425 {
426 return cfg->wiphy;
427 }
428
wiphy_to_cfg(struct wiphy * w)429 static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
430 {
431 return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
432 }
433
wdev_to_cfg(struct wireless_dev * wd)434 static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
435 {
436 return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
437 }
438
439 static inline
cfg_to_ndev(struct brcmf_cfg80211_info * cfg)440 struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
441 {
442 struct brcmf_cfg80211_vif *vif;
443 vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
444 return vif->wdev.netdev;
445 }
446
ndev_to_cfg(struct net_device * ndev)447 static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
448 {
449 return wdev_to_cfg(ndev->ieee80211_ptr);
450 }
451
ndev_to_prof(struct net_device * nd)452 static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
453 {
454 struct brcmf_if *ifp = netdev_priv(nd);
455 return &ifp->vif->profile;
456 }
457
ndev_to_vif(struct net_device * ndev)458 static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
459 {
460 struct brcmf_if *ifp = netdev_priv(ndev);
461 return ifp->vif;
462 }
463
464 static inline struct
cfg_to_conn(struct brcmf_cfg80211_info * cfg)465 brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
466 {
467 return &cfg->conn_info;
468 }
469
470 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
471 struct device *busdev,
472 bool p2pdev_forced);
473 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
474 s32 brcmf_cfg80211_up(struct net_device *ndev);
475 s32 brcmf_cfg80211_down(struct net_device *ndev);
476 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);
477
478 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
479 enum nl80211_iftype type,
480 bool pm_block);
481 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);
482
483 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
484 const u8 *vndr_ie_buf, u32 vndr_ie_len);
485 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
486 const struct brcmf_tlv *
487 brcmf_parse_tlvs(const void *buf, int buflen, uint key);
488 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
489 struct ieee80211_channel *ch);
490 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
491 unsigned long state);
492 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
493 struct brcmf_cfg80211_vif *vif);
494 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
495 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
496 u8 action, ulong timeout);
497 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
498 struct brcmf_if *ifp, bool aborted,
499 bool fw_abort);
500 void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
501 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);
502 void brcmf_cfg80211_free_netdev(struct net_device *ndev);
503
504 #endif /* BRCMFMAC_CFG80211_H */
505