summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
blob: d9bdaf9a72d0fd2d606a5ab041a6e283aec5770e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
/*
 * Copyright (c) 2010 Broadcom Corporation
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _wl_cfg80211_h_
#define _wl_cfg80211_h_

/* for brcmu_d11inf */
#include <brcmu_d11.h>

#define WL_NUM_SCAN_MAX			10
#define WL_NUM_PMKIDS_MAX		MAXPMKID
#define WL_TLV_INFO_MAX			1024
#define WL_BSS_INFO_MAX			2048
#define WL_ASSOC_INFO_MAX		512	/* assoc related fil max buf */
#define WL_EXTRA_BUF_MAX		2048
#define WL_ROAM_TRIGGER_LEVEL		-75
#define WL_ROAM_DELTA			20
#define WL_BEACON_TIMEOUT		3

#define WL_SCAN_CHANNEL_TIME		40
#define WL_SCAN_UNASSOC_TIME		40
#define WL_SCAN_PASSIVE_TIME		120

#define WL_ESCAN_BUF_SIZE		(1024 * 64)
#define WL_ESCAN_TIMER_INTERVAL_MS	8000 /* E-Scan timeout */

#define WL_ESCAN_ACTION_START		1
#define WL_ESCAN_ACTION_CONTINUE	2
#define WL_ESCAN_ACTION_ABORT		3

#define WL_AUTH_SHARED_KEY		1	/* d11 shared authentication */
#define IE_MAX_LEN			512

/* IE TLV processing */
#define TLV_LEN_OFF			1	/* length offset */
#define TLV_HDR_LEN			2	/* header length */
#define TLV_BODY_OFF			2	/* body offset */
#define TLV_OUI_LEN			3	/* oui id length */

/* 802.11 Mgmt Packet flags */
#define BRCMF_VNDR_IE_BEACON_FLAG	0x1
#define BRCMF_VNDR_IE_PRBRSP_FLAG	0x2
#define BRCMF_VNDR_IE_ASSOCRSP_FLAG	0x4
#define BRCMF_VNDR_IE_AUTHRSP_FLAG	0x8
#define BRCMF_VNDR_IE_PRBREQ_FLAG	0x10
#define BRCMF_VNDR_IE_ASSOCREQ_FLAG	0x20
/* vendor IE in IW advertisement protocol ID field */
#define BRCMF_VNDR_IE_IWAPID_FLAG	0x40
/* allow custom IE id */
#define BRCMF_VNDR_IE_CUSTOM_FLAG	0x100

/* P2P Action Frames flags (spec ordered) */
#define BRCMF_VNDR_IE_GONREQ_FLAG     0x001000
#define BRCMF_VNDR_IE_GONRSP_FLAG     0x002000
#define BRCMF_VNDR_IE_GONCFM_FLAG     0x004000
#define BRCMF_VNDR_IE_INVREQ_FLAG     0x008000
#define BRCMF_VNDR_IE_INVRSP_FLAG     0x010000
#define BRCMF_VNDR_IE_DISREQ_FLAG     0x020000
#define BRCMF_VNDR_IE_DISRSP_FLAG     0x040000
#define BRCMF_VNDR_IE_PRDREQ_FLAG     0x080000
#define BRCMF_VNDR_IE_PRDRSP_FLAG     0x100000

#define BRCMF_VNDR_IE_P2PAF_SHIFT	12


/**
 * enum brcmf_scan_status - scan engine status
 *
 * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
 * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
 * @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
 */
enum brcmf_scan_status {
	BRCMF_SCAN_STATUS_BUSY,
	BRCMF_SCAN_STATUS_ABORT,
	BRCMF_SCAN_STATUS_SUPPRESS,
};

/**
 * enum wl_mode - driver mode of virtual interface.
 *
 * @WL_MODE_BSS: connects to BSS.
 * @WL_MODE_IBSS: operate as ad-hoc.
 * @WL_MODE_AP: operate as access-point.
 * @WL_MODE_P2P: provide P2P discovery.
 */
enum wl_mode {
	WL_MODE_BSS,
	WL_MODE_IBSS,
	WL_MODE_AP,
	WL_MODE_P2P
};

/* dongle configuration */
struct brcmf_cfg80211_conf {
	u32 frag_threshold;
	u32 rts_threshold;
	u32 retry_short;
	u32 retry_long;
	s32 tx_power;
	struct ieee80211_channel channel;
};

/* basic structure of scan request */
struct brcmf_cfg80211_scan_req {
	struct brcmf_ssid_le ssid_le;
};

/* basic structure of information element */
struct brcmf_cfg80211_ie {
	u16 offset;
	u8 buf[WL_TLV_INFO_MAX];
};

/* security information with currently associated ap */
struct brcmf_cfg80211_security {
	u32 wpa_versions;
	u32 auth_type;
	u32 cipher_pairwise;
	u32 cipher_group;
	u32 wpa_auth;
};

/**
 * struct brcmf_cfg80211_profile - profile information.
 *
 * @ssid: ssid of associated/associating ap.
 * @bssid: bssid of joined/joining ibss.
 * @sec: security information.
 */
struct brcmf_cfg80211_profile {
	struct brcmf_ssid ssid;
	u8 bssid[ETH_ALEN];
	struct brcmf_cfg80211_security sec;
};

/**
 * enum brcmf_vif_status - bit indices for vif status.
 *
 * @BRCMF_VIF_STATUS_READY: ready for operation.
 * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
 * @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
 * @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
 * @BRCMF_VIF_STATUS_AP_CREATING: interface configured for AP operation.
 * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
 */
enum brcmf_vif_status {
	BRCMF_VIF_STATUS_READY,
	BRCMF_VIF_STATUS_CONNECTING,
	BRCMF_VIF_STATUS_CONNECTED,
	BRCMF_VIF_STATUS_DISCONNECTING,
	BRCMF_VIF_STATUS_AP_CREATING,
	BRCMF_VIF_STATUS_AP_CREATED
};

/**
 * struct vif_saved_ie - holds saved IEs for a virtual interface.
 *
 * @probe_req_ie: IE info for probe request.
 * @probe_res_ie: IE info for probe response.
 * @beacon_ie: IE info for beacon frame.
 * @probe_req_ie_len: IE info length for probe request.
 * @probe_res_ie_len: IE info length for probe response.
 * @beacon_ie_len: IE info length for beacon frame.
 */
struct vif_saved_ie {
	u8  probe_req_ie[IE_MAX_LEN];
	u8  probe_res_ie[IE_MAX_LEN];
	u8  beacon_ie[IE_MAX_LEN];
	u8  assoc_req_ie[IE_MAX_LEN];
	u32 probe_req_ie_len;
	u32 probe_res_ie_len;
	u32 beacon_ie_len;
	u32 assoc_req_ie_len;
};

/**
 * struct brcmf_cfg80211_vif - virtual interface specific information.
 *
 * @ifp: lower layer interface pointer
 * @wdev: wireless device.
 * @profile: profile information.
 * @mode: operating mode.
 * @roam_off: roaming state.
 * @sme_state: SME state using enum brcmf_vif_status bits.
 * @pm_block: power-management blocked.
 * @list: linked list.
 * @mgmt_rx_reg: registered rx mgmt frame types.
 */
struct brcmf_cfg80211_vif {
	struct brcmf_if *ifp;
	struct wireless_dev wdev;
	struct brcmf_cfg80211_profile profile;
	s32 mode;
	s32 roam_off;
	unsigned long sme_state;
	bool pm_block;
	struct vif_saved_ie saved_ie;
	struct list_head list;
	u16 mgmt_rx_reg;
};

/* association inform */
struct brcmf_cfg80211_connect_info {
	u8 *req_ie;
	s32 req_ie_len;
	u8 *resp_ie;
	s32 resp_ie_len;
};

/* assoc ie length */
struct brcmf_cfg80211_assoc_ielen_le {
	__le32 req_len;
	__le32 resp_len;
};

/* wpa2 pmk list */
struct brcmf_cfg80211_pmk_list {
	struct pmkid_list pmkids;
	struct pmkid foo[MAXPMKID - 1];
};

/* dongle escan state */
enum wl_escan_state {
	WL_ESCAN_STATE_IDLE,
	WL_ESCAN_STATE_SCANNING
};

struct escan_info {
	u32 escan_state;
	u8 escan_buf[WL_ESCAN_BUF_SIZE];
	struct wiphy *wiphy;
	struct brcmf_if *ifp;
	s32 (*run)(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
		   struct cfg80211_scan_request *request, u16 action);
};

/**
 * struct brcmf_pno_param_le - PNO scan configuration parameters
 *
 * @version: PNO parameters version.
 * @scan_freq: scan frequency.
 * @lost_network_timeout: #sec. to declare discovered network as lost.
 * @flags: Bit field to control features of PFN such as sort criteria auto
 *	enable switch and background scan.
 * @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
 *	criteria.
 * @bestn: number of best networks in each scan.
 * @mscan: number of scans recorded.
 * @repeat: minimum number of scan intervals before scan frequency changes
 *	in adaptive scan.
 * @exp: exponent of 2 for maximum scan interval.
 * @slow_freq: slow scan period.
 */
struct brcmf_pno_param_le {
	__le32 version;
	__le32 scan_freq;
	__le32 lost_network_timeout;
	__le16 flags;
	__le16 rssi_margin;
	u8 bestn;
	u8 mscan;
	u8 repeat;
	u8 exp;
	__le32 slow_freq;
};

/**
 * struct brcmf_pno_net_param_le - scan parameters per preferred network.
 *
 * @ssid: ssid name and its length.
 * @flags: bit2: hidden.
 * @infra: BSS vs IBSS.
 * @auth: Open vs Closed.
 * @wpa_auth: WPA type.
 * @wsec: wsec value.
 */
struct brcmf_pno_net_param_le {
	struct brcmf_ssid_le ssid;
	__le32 flags;
	__le32 infra;
	__le32 auth;
	__le32 wpa_auth;
	__le32 wsec;
};

/**
 * struct brcmf_pno_net_info_le - information per found network.
 *
 * @bssid: BSS network identifier.
 * @channel: channel number only.
 * @SSID_len: length of ssid.
 * @SSID: ssid characters.
 * @RSSI: receive signal strength (in dBm).
 * @timestamp: age in seconds.
 */
struct brcmf_pno_net_info_le {
	u8 bssid[ETH_ALEN];
	u8 channel;
	u8 SSID_len;
	u8 SSID[32];
	__le16	RSSI;
	__le16	timestamp;
};

/**
 * struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
 *
 * @version: PNO version identifier.
 * @status: indicates completion status of PNO scan.
 * @count: amount of brcmf_pno_net_info_le entries appended.
 */
struct brcmf_pno_scanresults_le {
	__le32 version;
	__le32 status;
	__le32 count;
};

/**
 * struct brcmf_cfg80211_vif_event - virtual interface event information.
 *
 * @vif_wq: waitqueue awaiting interface event from firmware.
 * @vif_event_lock: protects other members in this structure.
 * @vif_complete: completion for net attach.
 * @action: either add, change, or delete.
 * @vif: virtual interface object related to the event.
 */
struct brcmf_cfg80211_vif_event {
	wait_queue_head_t vif_wq;
	struct mutex vif_event_lock;
	u8 action;
	struct brcmf_cfg80211_vif *vif;
};

/**
 * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
 *
 * @wiphy: wiphy object for cfg80211 interface.
 * @conf: dongle configuration.
 * @p2p: peer-to-peer specific information.
 * @btcoex: Bluetooth coexistence information.
 * @scan_request: cfg80211 scan request object.
 * @usr_sync: mainly for dongle up/down synchronization.
 * @bss_list: bss_list holding scanned ap information.
 * @scan_req_int: internal scan request object.
 * @bss_info: bss information for cfg80211 layer.
 * @ie: information element object for internal purpose.
 * @conn_info: association info.
 * @pmk_list: wpa2 pmk list.
 * @scan_status: scan activity on the dongle.
 * @pub: common driver information.
 * @channel: current channel.
 * @active_scan: current scan mode.
 * @sched_escan: e-scan for scheduled scan support running.
 * @ibss_starter: indicates this sta is ibss starter.
 * @pwr_save: indicate whether dongle to support power save mode.
 * @dongle_up: indicate whether dongle up or not.
 * @roam_on: on/off switch for dongle self-roaming.
 * @scan_tried: indicates if first scan attempted.
 * @dcmd_buf: dcmd buffer.
 * @extra_buf: mainly to grab assoc information.
 * @debugfsdir: debugfs folder for this device.
 * @escan_info: escan information.
 * @escan_timeout: Timer for catch scan timeout.
 * @escan_timeout_work: scan timeout worker.
 * @escan_ioctl_buf: dongle command buffer for escan commands.
 * @vif_list: linked list of vif instances.
 * @vif_cnt: number of vif instances.
 * @vif_event: vif event signalling.
 */
struct brcmf_cfg80211_info {
	struct wiphy *wiphy;
	struct brcmf_cfg80211_conf *conf;
	struct brcmf_p2p_info p2p;
	struct brcmf_btcoex_info *btcoex;
	struct cfg80211_scan_request *scan_request;
	struct mutex usr_sync;
	struct brcmf_scan_results *bss_list;
	struct brcmf_cfg80211_scan_req scan_req_int;
	struct wl_cfg80211_bss_info *bss_info;
	struct brcmf_cfg80211_ie ie;
	struct brcmf_cfg80211_connect_info conn_info;
	struct brcmf_cfg80211_pmk_list *pmk_list;
	unsigned long scan_status;
	struct brcmf_pub *pub;
	u32 channel;
	bool active_scan;
	bool sched_escan;
	bool ibss_starter;
	bool pwr_save;
	bool dongle_up;
	bool roam_on;
	bool scan_tried;
	u8 *dcmd_buf;
	u8 *extra_buf;
	struct dentry *debugfsdir;
	struct escan_info escan_info;
	struct timer_list escan_timeout;
	struct work_struct escan_timeout_work;
	u8 *escan_ioctl_buf;
	struct list_head vif_list;
	u8 vif_cnt;
	struct brcmf_cfg80211_vif_event vif_event;
	struct completion vif_disabled;
	struct brcmu_d11inf d11inf;
};

/**
 * struct brcmf_tlv - tag_ID/length/value_buffer tuple.
 *
 * @id: tag identifier.
 * @len: number of bytes in value buffer.
 * @data: value buffer.
 */
struct brcmf_tlv {
	u8 id;
	u8 len;
	u8 data[1];
};

static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
{
	return cfg->wiphy;
}

static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
{
	return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
}

static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
{
	return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
}

static inline
struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
{
	struct brcmf_cfg80211_vif *vif;
	vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
	return vif->wdev.netdev;
}

static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
{
	return wdev_to_cfg(ndev->ieee80211_ptr);
}

static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
{
	struct brcmf_if *ifp = netdev_priv(nd);
	return &ifp->vif->profile;
}

static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
{
	struct brcmf_if *ifp = netdev_priv(ndev);
	return ifp->vif;
}

static inline struct
brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
{
	return &cfg->conn_info;
}

struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
						  struct device *busdev);
void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
s32 brcmf_cfg80211_up(struct net_device *ndev);
s32 brcmf_cfg80211_down(struct net_device *ndev);
enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);

struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
					   enum nl80211_iftype type,
					   bool pm_block);
void brcmf_free_vif(struct brcmf_cfg80211_info *cfg,
	            struct brcmf_cfg80211_vif *vif);

s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
			  const u8 *vndr_ie_buf, u32 vndr_ie_len);
s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key);
u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
			struct ieee80211_channel *ch);
u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state);
void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
				  struct brcmf_cfg80211_vif *vif);
bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
					  u8 action, ulong timeout);
s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
				struct brcmf_if *ifp, bool aborted,
				bool fw_abort);
void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);

#endif				/* _wl_cfg80211_h_ */