brcmfmac: add support for creating P2P client/GO interface
[linux-2.6-block.git] / drivers / net / wireless / brcm80211 / brcmfmac / wl_cfg80211.h
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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 _wl_cfg80211_h_
18#define _wl_cfg80211_h_
19
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20#define WL_NUM_SCAN_MAX 10
21#define WL_NUM_PMKIDS_MAX MAXPMKID
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22#define WL_TLV_INFO_MAX 1024
23#define WL_BSS_INFO_MAX 2048
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24#define WL_ASSOC_INFO_MAX 512 /* assoc related fil max buf */
25#define WL_EXTRA_BUF_MAX 2048
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26#define WL_ROAM_TRIGGER_LEVEL -75
27#define WL_ROAM_DELTA 20
28#define WL_BEACON_TIMEOUT 3
29
30#define WL_SCAN_CHANNEL_TIME 40
31#define WL_SCAN_UNASSOC_TIME 40
32#define WL_SCAN_PASSIVE_TIME 120
33
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34#define WL_ESCAN_BUF_SIZE (1024 * 64)
35#define WL_ESCAN_TIMER_INTERVAL_MS 8000 /* E-Scan timeout */
36
37#define WL_ESCAN_ACTION_START 1
38#define WL_ESCAN_ACTION_CONTINUE 2
39#define WL_ESCAN_ACTION_ABORT 3
40
f09d0c02 41#define WL_AUTH_SHARED_KEY 1 /* d11 shared authentication */
1a873342 42#define IE_MAX_LEN 512
f09d0c02 43
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44/* IE TLV processing */
45#define TLV_LEN_OFF 1 /* length offset */
46#define TLV_HDR_LEN 2 /* header length */
47#define TLV_BODY_OFF 2 /* body offset */
48#define TLV_OUI_LEN 3 /* oui id length */
49
50/* 802.11 Mgmt Packet flags */
51#define BRCMF_VNDR_IE_BEACON_FLAG 0x1
52#define BRCMF_VNDR_IE_PRBRSP_FLAG 0x2
53#define BRCMF_VNDR_IE_ASSOCRSP_FLAG 0x4
54#define BRCMF_VNDR_IE_AUTHRSP_FLAG 0x8
55#define BRCMF_VNDR_IE_PRBREQ_FLAG 0x10
56#define BRCMF_VNDR_IE_ASSOCREQ_FLAG 0x20
57/* vendor IE in IW advertisement protocol ID field */
58#define BRCMF_VNDR_IE_IWAPID_FLAG 0x40
59/* allow custom IE id */
60#define BRCMF_VNDR_IE_CUSTOM_FLAG 0x100
61
62/* P2P Action Frames flags (spec ordered) */
63#define BRCMF_VNDR_IE_GONREQ_FLAG 0x001000
64#define BRCMF_VNDR_IE_GONRSP_FLAG 0x002000
65#define BRCMF_VNDR_IE_GONCFM_FLAG 0x004000
66#define BRCMF_VNDR_IE_INVREQ_FLAG 0x008000
67#define BRCMF_VNDR_IE_INVRSP_FLAG 0x010000
68#define BRCMF_VNDR_IE_DISREQ_FLAG 0x020000
69#define BRCMF_VNDR_IE_DISRSP_FLAG 0x040000
70#define BRCMF_VNDR_IE_PRDREQ_FLAG 0x080000
71#define BRCMF_VNDR_IE_PRDRSP_FLAG 0x100000
72
73#define BRCMF_VNDR_IE_P2PAF_SHIFT 12
74
75
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76/**
77 * enum brcmf_scan_status - dongle scan status
78 *
79 * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
80 * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
81 */
82enum brcmf_scan_status {
83 BRCMF_SCAN_STATUS_BUSY,
84 BRCMF_SCAN_STATUS_ABORT,
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85};
86
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87/**
88 * enum wl_mode - driver mode of virtual interface.
89 *
90 * @WL_MODE_BSS: connects to BSS.
91 * @WL_MODE_IBSS: operate as ad-hoc.
92 * @WL_MODE_AP: operate as access-point.
93 * @WL_MODE_P2P: provide P2P discovery.
94 */
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95enum wl_mode {
96 WL_MODE_BSS,
97 WL_MODE_IBSS,
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98 WL_MODE_AP,
99 WL_MODE_P2P
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100};
101
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102/* dongle configuration */
103struct brcmf_cfg80211_conf {
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104 u32 frag_threshold;
105 u32 rts_threshold;
106 u32 retry_short;
107 u32 retry_long;
108 s32 tx_power;
109 struct ieee80211_channel channel;
110};
111
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112/* basic structure of scan request */
113struct brcmf_cfg80211_scan_req {
114 struct brcmf_ssid_le ssid_le;
115};
116
117/* basic structure of information element */
118struct brcmf_cfg80211_ie {
119 u16 offset;
120 u8 buf[WL_TLV_INFO_MAX];
121};
122
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123/* security information with currently associated ap */
124struct brcmf_cfg80211_security {
125 u32 wpa_versions;
126 u32 auth_type;
127 u32 cipher_pairwise;
128 u32 cipher_group;
129 u32 wpa_auth;
130};
131
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132/**
133 * struct brcmf_cfg80211_profile - profile information.
134 *
135 * @ssid: ssid of associated/associating ap.
136 * @bssid: bssid of joined/joining ibss.
137 * @sec: security information.
138 */
5b435de0 139struct brcmf_cfg80211_profile {
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140 struct brcmf_ssid ssid;
141 u8 bssid[ETH_ALEN];
5b435de0 142 struct brcmf_cfg80211_security sec;
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143};
144
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145/**
146 * enum brcmf_vif_status - bit indices for vif status.
147 *
148 * @BRCMF_VIF_STATUS_READY: ready for operation.
149 * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
150 * @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
151 * @BRCMF_VIF_STATUS_AP_CREATING: interface configured for AP operation.
152 * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
153 */
154enum brcmf_vif_status {
155 BRCMF_VIF_STATUS_READY,
156 BRCMF_VIF_STATUS_CONNECTING,
157 BRCMF_VIF_STATUS_CONNECTED,
158 BRCMF_VIF_STATUS_AP_CREATING,
159 BRCMF_VIF_STATUS_AP_CREATED
160};
161
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162/**
163 * struct vif_saved_ie - holds saved IEs for a virtual interface.
164 *
9f440b7b 165 * @probe_req_ie: IE info for probe request.
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166 * @probe_res_ie: IE info for probe response.
167 * @beacon_ie: IE info for beacon frame.
9f440b7b 168 * @probe_req_ie_len: IE info length for probe request.
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169 * @probe_res_ie_len: IE info length for probe response.
170 * @beacon_ie_len: IE info length for beacon frame.
171 */
172struct vif_saved_ie {
9f440b7b 173 u8 probe_req_ie[VNDR_IES_BUF_LEN];
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174 u8 probe_res_ie[IE_MAX_LEN];
175 u8 beacon_ie[IE_MAX_LEN];
9f440b7b 176 u32 probe_req_ie_len;
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177 u32 probe_res_ie_len;
178 u32 beacon_ie_len;
179};
180
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181/**
182 * struct brcmf_cfg80211_vif - virtual interface specific information.
183 *
184 * @ifp: lower layer interface pointer
185 * @wdev: wireless device.
6ac4f4ed 186 * @profile: profile information.
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187 * @mode: operating mode.
188 * @roam_off: roaming state.
c1179033 189 * @sme_state: SME state using enum brcmf_vif_status bits.
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190 * @pm_block: power-management blocked.
191 * @list: linked list.
192 */
193struct brcmf_cfg80211_vif {
194 struct brcmf_if *ifp;
195 struct wireless_dev wdev;
6ac4f4ed 196 struct brcmf_cfg80211_profile profile;
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197 s32 mode;
198 s32 roam_off;
c1179033 199 unsigned long sme_state;
3eacf866 200 bool pm_block;
8ff5dc92 201 struct vif_saved_ie saved_ie;
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202 struct list_head list;
203};
204
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205/* association inform */
206struct brcmf_cfg80211_connect_info {
207 u8 *req_ie;
208 s32 req_ie_len;
209 u8 *resp_ie;
210 s32 resp_ie_len;
211};
212
213/* assoc ie length */
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214struct brcmf_cfg80211_assoc_ielen_le {
215 __le32 req_len;
216 __le32 resp_len;
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217};
218
219/* wpa2 pmk list */
220struct brcmf_cfg80211_pmk_list {
221 struct pmkid_list pmkids;
222 struct pmkid foo[MAXPMKID - 1];
223};
224
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225/* dongle escan state */
226enum wl_escan_state {
227 WL_ESCAN_STATE_IDLE,
228 WL_ESCAN_STATE_SCANNING
229};
230
231struct escan_info {
232 u32 escan_state;
233 u8 escan_buf[WL_ESCAN_BUF_SIZE];
234 struct wiphy *wiphy;
235 struct net_device *ndev;
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236 s32 (*run)(struct brcmf_cfg80211_info *cfg,
237 struct net_device *ndev,
238 struct cfg80211_scan_request *request, u16 action);
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239};
240
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241/**
242 * struct brcmf_pno_param_le - PNO scan configuration parameters
243 *
244 * @version: PNO parameters version.
245 * @scan_freq: scan frequency.
246 * @lost_network_timeout: #sec. to declare discovered network as lost.
247 * @flags: Bit field to control features of PFN such as sort criteria auto
248 * enable switch and background scan.
249 * @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
250 * criteria.
251 * @bestn: number of best networks in each scan.
252 * @mscan: number of scans recorded.
253 * @repeat: minimum number of scan intervals before scan frequency changes
254 * in adaptive scan.
255 * @exp: exponent of 2 for maximum scan interval.
256 * @slow_freq: slow scan period.
257 */
258struct brcmf_pno_param_le {
259 __le32 version;
260 __le32 scan_freq;
261 __le32 lost_network_timeout;
262 __le16 flags;
263 __le16 rssi_margin;
264 u8 bestn;
265 u8 mscan;
266 u8 repeat;
267 u8 exp;
268 __le32 slow_freq;
269};
270
271/**
272 * struct brcmf_pno_net_param_le - scan parameters per preferred network.
273 *
274 * @ssid: ssid name and its length.
275 * @flags: bit2: hidden.
276 * @infra: BSS vs IBSS.
277 * @auth: Open vs Closed.
278 * @wpa_auth: WPA type.
279 * @wsec: wsec value.
280 */
281struct brcmf_pno_net_param_le {
282 struct brcmf_ssid_le ssid;
283 __le32 flags;
284 __le32 infra;
285 __le32 auth;
286 __le32 wpa_auth;
287 __le32 wsec;
288};
289
290/**
291 * struct brcmf_pno_net_info_le - information per found network.
292 *
293 * @bssid: BSS network identifier.
294 * @channel: channel number only.
295 * @SSID_len: length of ssid.
296 * @SSID: ssid characters.
297 * @RSSI: receive signal strength (in dBm).
298 * @timestamp: age in seconds.
299 */
300struct brcmf_pno_net_info_le {
301 u8 bssid[ETH_ALEN];
302 u8 channel;
303 u8 SSID_len;
304 u8 SSID[32];
305 __le16 RSSI;
306 __le16 timestamp;
307};
308
309/**
310 * struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
311 *
312 * @version: PNO version identifier.
313 * @status: indicates completion status of PNO scan.
314 * @count: amount of brcmf_pno_net_info_le entries appended.
315 */
316struct brcmf_pno_scanresults_le {
317 __le32 version;
318 __le32 status;
319 __le32 count;
320};
321
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322/**
323 * struct brcmf_cfg80211_vif_event - virtual interface event information.
324 *
325 * @vif_wq: waitqueue awaiting interface event from firmware.
326 * @vif_event_lock: protects other members in this structure.
327 * @vif_complete: completion for net attach.
328 * @action: either add, change, or delete.
329 * @vif: virtual interface object related to the event.
330 */
331struct brcmf_cfg80211_vif_event {
332 wait_queue_head_t vif_wq;
333 struct mutex vif_event_lock;
334 struct completion vif_complete;
335 u8 action;
336 struct brcmf_cfg80211_vif *vif;
337};
338
02030eb6 339/**
27a68fe3 340 * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
02030eb6 341 *
3eacf866 342 * @wiphy: wiphy object for cfg80211 interface.
02030eb6 343 * @conf: dongle configuration.
9f440b7b 344 * @p2p: peer-to-peer specific information.
02030eb6 345 * @scan_request: cfg80211 scan request object.
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346 * @usr_sync: mainly for dongle up/down synchronization.
347 * @bss_list: bss_list holding scanned ap information.
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348 * @scan_req_int: internal scan request object.
349 * @bss_info: bss information for cfg80211 layer.
350 * @ie: information element object for internal purpose.
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351 * @conn_info: association info.
352 * @pmk_list: wpa2 pmk list.
c1179033 353 * @scan_status: scan activity on the dongle.
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354 * @pub: common driver information.
355 * @channel: current channel.
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356 * @active_scan: current scan mode.
357 * @sched_escan: e-scan for scheduled scan support running.
358 * @ibss_starter: indicates this sta is ibss starter.
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359 * @pwr_save: indicate whether dongle to support power save mode.
360 * @dongle_up: indicate whether dongle up or not.
361 * @roam_on: on/off switch for dongle self-roaming.
362 * @scan_tried: indicates if first scan attempted.
363 * @dcmd_buf: dcmd buffer.
364 * @extra_buf: mainly to grab assoc information.
365 * @debugfsdir: debugfs folder for this device.
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366 * @escan_info: escan information.
367 * @escan_timeout: Timer for catch scan timeout.
368 * @escan_timeout_work: scan timeout worker.
369 * @escan_ioctl_buf: dongle command buffer for escan commands.
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370 * @vif_list: linked list of vif instances.
371 * @vif_cnt: number of vif instances.
d3c0b633 372 * @vif_event: vif event signalling.
02030eb6 373 */
27a68fe3 374struct brcmf_cfg80211_info {
3eacf866 375 struct wiphy *wiphy;
02030eb6 376 struct brcmf_cfg80211_conf *conf;
9f440b7b 377 struct brcmf_p2p_info p2p;
02030eb6 378 struct cfg80211_scan_request *scan_request;
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379 struct mutex usr_sync;
380 struct brcmf_scan_results *bss_list;
f0799895 381 struct brcmf_cfg80211_scan_req scan_req_int;
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382 struct wl_cfg80211_bss_info *bss_info;
383 struct brcmf_cfg80211_ie ie;
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384 struct brcmf_cfg80211_connect_info conn_info;
385 struct brcmf_cfg80211_pmk_list *pmk_list;
c1179033 386 unsigned long scan_status;
ee928381 387 struct brcmf_pub *pub;
02030eb6 388 u32 channel;
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389 bool active_scan;
390 bool sched_escan;
391 bool ibss_starter;
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392 bool pwr_save;
393 bool dongle_up;
394 bool roam_on;
395 bool scan_tried;
396 u8 *dcmd_buf;
397 u8 *extra_buf;
5b435de0 398 struct dentry *debugfsdir;
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399 struct escan_info escan_info;
400 struct timer_list escan_timeout;
401 struct work_struct escan_timeout_work;
e756af5b 402 u8 *escan_ioctl_buf;
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403 struct list_head vif_list;
404 u8 vif_cnt;
d3c0b633 405 struct brcmf_cfg80211_vif_event vif_event;
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406};
407
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408/**
409 * struct brcmf_tlv - tag_ID/length/value_buffer tuple.
410 *
411 * @id: tag identifier.
412 * @len: number of bytes in value buffer.
413 * @data: value buffer.
414 */
415struct brcmf_tlv {
416 u8 id;
417 u8 len;
418 u8 data[1];
419};
420
3eacf866 421static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
5b435de0 422{
3eacf866 423 return cfg->wiphy;
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424}
425
27a68fe3 426static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
5b435de0 427{
27a68fe3 428 return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
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429}
430
27a68fe3 431static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
5b435de0 432{
27a68fe3 433 return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
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434}
435
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436static inline
437struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
5b435de0 438{
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439 struct brcmf_cfg80211_vif *vif;
440 vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
441 return vif->wdev.netdev;
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442}
443
27a68fe3 444static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
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445{
446 return wdev_to_cfg(ndev->ieee80211_ptr);
447}
448
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449static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
450{
451 struct brcmf_if *ifp = netdev_priv(nd);
452 return &ifp->vif->profile;
453}
454
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455static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
456{
457 struct brcmf_if *ifp = netdev_priv(ndev);
458 return ifp->vif;
459}
460
5b435de0 461static inline struct
27a68fe3 462brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
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463{
464 return &cfg->conn_info;
465}
466
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467struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
468 struct device *busdev);
27a68fe3 469void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
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470s32 brcmf_cfg80211_up(struct net_device *ndev);
471s32 brcmf_cfg80211_down(struct net_device *ndev);
5b435de0 472
9f440b7b 473struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
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474 enum nl80211_iftype type,
475 bool pm_block);
476void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);
477
478s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
479 const u8 *vndr_ie_buf, u32 vndr_ie_len);
480struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key);
481u16 channel_to_chanspec(struct ieee80211_channel *ch);
482u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state);
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483void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
484 struct brcmf_cfg80211_vif *vif);
485bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
486int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
487 u8 action, ulong timeout);
488void brcmf_cfg80211_vif_complete(struct brcmf_cfg80211_info *info);
9f440b7b 489
5b435de0 490#endif /* _wl_cfg80211_h_ */