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/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h

http://github.com/mirrors/linux
C++ Header | 511 lines | 285 code | 46 blank | 180 comment | 0 complexity | cf3977c75960ad68344e4866712e849f MD5 | raw file
  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
 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	8000 /* 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
 79/**
 80 * enum brcmf_scan_status - scan engine status
 81 *
 82 * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
 83 * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
 84 * @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
 85 */
 86enum brcmf_scan_status {
 87	BRCMF_SCAN_STATUS_BUSY,
 88	BRCMF_SCAN_STATUS_ABORT,
 89	BRCMF_SCAN_STATUS_SUPPRESS,
 90};
 91
 92/**
 93 * enum wl_mode - driver mode of virtual interface.
 94 *
 95 * @WL_MODE_BSS: connects to BSS.
 96 * @WL_MODE_IBSS: operate as ad-hoc.
 97 * @WL_MODE_AP: operate as access-point.
 98 * @WL_MODE_P2P: provide P2P discovery.
 99 */
100enum wl_mode {
101	WL_MODE_BSS,
102	WL_MODE_IBSS,
103	WL_MODE_AP,
104	WL_MODE_P2P
105};
106
107/* dongle configuration */
108struct brcmf_cfg80211_conf {
109	u32 frag_threshold;
110	u32 rts_threshold;
111	u32 retry_short;
112	u32 retry_long;
113	s32 tx_power;
114	struct ieee80211_channel channel;
115};
116
117/* basic structure of scan request */
118struct brcmf_cfg80211_scan_req {
119	struct brcmf_ssid_le ssid_le;
120};
121
122/* basic structure of information element */
123struct brcmf_cfg80211_ie {
124	u16 offset;
125	u8 buf[WL_TLV_INFO_MAX];
126};
127
128/* security information with currently associated ap */
129struct brcmf_cfg80211_security {
130	u32 wpa_versions;
131	u32 auth_type;
132	u32 cipher_pairwise;
133	u32 cipher_group;
134	u32 wpa_auth;
135};
136
137/**
138 * struct brcmf_cfg80211_profile - profile information.
139 *
140 * @ssid: ssid of associated/associating ap.
141 * @bssid: bssid of joined/joining ibss.
142 * @sec: security information.
143 */
144struct brcmf_cfg80211_profile {
145	struct brcmf_ssid ssid;
146	u8 bssid[ETH_ALEN];
147	struct brcmf_cfg80211_security sec;
148};
149
150/**
151 * enum brcmf_vif_status - bit indices for vif status.
152 *
153 * @BRCMF_VIF_STATUS_READY: ready for operation.
154 * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
155 * @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
156 * @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
157 * @BRCMF_VIF_STATUS_AP_CREATING: interface configured for AP operation.
158 * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
159 */
160enum brcmf_vif_status {
161	BRCMF_VIF_STATUS_READY,
162	BRCMF_VIF_STATUS_CONNECTING,
163	BRCMF_VIF_STATUS_CONNECTED,
164	BRCMF_VIF_STATUS_DISCONNECTING,
165	BRCMF_VIF_STATUS_AP_CREATING,
166	BRCMF_VIF_STATUS_AP_CREATED
167};
168
169/**
170 * struct vif_saved_ie - holds saved IEs for a virtual interface.
171 *
172 * @probe_req_ie: IE info for probe request.
173 * @probe_res_ie: IE info for probe response.
174 * @beacon_ie: IE info for beacon frame.
175 * @probe_req_ie_len: IE info length for probe request.
176 * @probe_res_ie_len: IE info length for probe response.
177 * @beacon_ie_len: IE info length for beacon frame.
178 */
179struct vif_saved_ie {
180	u8  probe_req_ie[IE_MAX_LEN];
181	u8  probe_res_ie[IE_MAX_LEN];
182	u8  beacon_ie[IE_MAX_LEN];
183	u8  assoc_req_ie[IE_MAX_LEN];
184	u32 probe_req_ie_len;
185	u32 probe_res_ie_len;
186	u32 beacon_ie_len;
187	u32 assoc_req_ie_len;
188};
189
190/**
191 * struct brcmf_cfg80211_vif - virtual interface specific information.
192 *
193 * @ifp: lower layer interface pointer
194 * @wdev: wireless device.
195 * @profile: profile information.
196 * @mode: operating mode.
197 * @roam_off: roaming state.
198 * @sme_state: SME state using enum brcmf_vif_status bits.
199 * @pm_block: power-management blocked.
200 * @list: linked list.
201 * @mgmt_rx_reg: registered rx mgmt frame types.
202 */
203struct brcmf_cfg80211_vif {
204	struct brcmf_if *ifp;
205	struct wireless_dev wdev;
206	struct brcmf_cfg80211_profile profile;
207	s32 mode;
208	s32 roam_off;
209	unsigned long sme_state;
210	bool pm_block;
211	struct vif_saved_ie saved_ie;
212	struct list_head list;
213	u16 mgmt_rx_reg;
214};
215
216/* association inform */
217struct brcmf_cfg80211_connect_info {
218	u8 *req_ie;
219	s32 req_ie_len;
220	u8 *resp_ie;
221	s32 resp_ie_len;
222};
223
224/* assoc ie length */
225struct brcmf_cfg80211_assoc_ielen_le {
226	__le32 req_len;
227	__le32 resp_len;
228};
229
230/* wpa2 pmk list */
231struct brcmf_cfg80211_pmk_list {
232	struct pmkid_list pmkids;
233	struct pmkid foo[MAXPMKID - 1];
234};
235
236/* dongle escan state */
237enum wl_escan_state {
238	WL_ESCAN_STATE_IDLE,
239	WL_ESCAN_STATE_SCANNING
240};
241
242struct escan_info {
243	u32 escan_state;
244	u8 escan_buf[WL_ESCAN_BUF_SIZE];
245	struct wiphy *wiphy;
246	struct brcmf_if *ifp;
247	s32 (*run)(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
248		   struct cfg80211_scan_request *request, u16 action);
249};
250
251/**
252 * struct brcmf_pno_param_le - PNO scan configuration parameters
253 *
254 * @version: PNO parameters version.
255 * @scan_freq: scan frequency.
256 * @lost_network_timeout: #sec. to declare discovered network as lost.
257 * @flags: Bit field to control features of PFN such as sort criteria auto
258 *	enable switch and background scan.
259 * @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
260 *	criteria.
261 * @bestn: number of best networks in each scan.
262 * @mscan: number of scans recorded.
263 * @repeat: minimum number of scan intervals before scan frequency changes
264 *	in adaptive scan.
265 * @exp: exponent of 2 for maximum scan interval.
266 * @slow_freq: slow scan period.
267 */
268struct brcmf_pno_param_le {
269	__le32 version;
270	__le32 scan_freq;
271	__le32 lost_network_timeout;
272	__le16 flags;
273	__le16 rssi_margin;
274	u8 bestn;
275	u8 mscan;
276	u8 repeat;
277	u8 exp;
278	__le32 slow_freq;
279};
280
281/**
282 * struct brcmf_pno_net_param_le - scan parameters per preferred network.
283 *
284 * @ssid: ssid name and its length.
285 * @flags: bit2: hidden.
286 * @infra: BSS vs IBSS.
287 * @auth: Open vs Closed.
288 * @wpa_auth: WPA type.
289 * @wsec: wsec value.
290 */
291struct brcmf_pno_net_param_le {
292	struct brcmf_ssid_le ssid;
293	__le32 flags;
294	__le32 infra;
295	__le32 auth;
296	__le32 wpa_auth;
297	__le32 wsec;
298};
299
300/**
301 * struct brcmf_pno_net_info_le - information per found network.
302 *
303 * @bssid: BSS network identifier.
304 * @channel: channel number only.
305 * @SSID_len: length of ssid.
306 * @SSID: ssid characters.
307 * @RSSI: receive signal strength (in dBm).
308 * @timestamp: age in seconds.
309 */
310struct brcmf_pno_net_info_le {
311	u8 bssid[ETH_ALEN];
312	u8 channel;
313	u8 SSID_len;
314	u8 SSID[32];
315	__le16	RSSI;
316	__le16	timestamp;
317};
318
319/**
320 * struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
321 *
322 * @version: PNO version identifier.
323 * @status: indicates completion status of PNO scan.
324 * @count: amount of brcmf_pno_net_info_le entries appended.
325 */
326struct brcmf_pno_scanresults_le {
327	__le32 version;
328	__le32 status;
329	__le32 count;
330};
331
332/**
333 * struct brcmf_cfg80211_vif_event - virtual interface event information.
334 *
335 * @vif_wq: waitqueue awaiting interface event from firmware.
336 * @vif_event_lock: protects other members in this structure.
337 * @vif_complete: completion for net attach.
338 * @action: either add, change, or delete.
339 * @vif: virtual interface object related to the event.
340 */
341struct brcmf_cfg80211_vif_event {
342	wait_queue_head_t vif_wq;
343	struct mutex vif_event_lock;
344	u8 action;
345	struct brcmf_cfg80211_vif *vif;
346};
347
348/**
349 * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
350 *
351 * @wiphy: wiphy object for cfg80211 interface.
352 * @conf: dongle configuration.
353 * @p2p: peer-to-peer specific information.
354 * @btcoex: Bluetooth coexistence information.
355 * @scan_request: cfg80211 scan request object.
356 * @usr_sync: mainly for dongle up/down synchronization.
357 * @bss_list: bss_list holding scanned ap information.
358 * @scan_req_int: internal scan request object.
359 * @bss_info: bss information for cfg80211 layer.
360 * @ie: information element object for internal purpose.
361 * @conn_info: association info.
362 * @pmk_list: wpa2 pmk list.
363 * @scan_status: scan activity on the dongle.
364 * @pub: common driver information.
365 * @channel: current channel.
366 * @active_scan: current scan mode.
367 * @sched_escan: e-scan for scheduled scan support running.
368 * @ibss_starter: indicates this sta is ibss starter.
369 * @pwr_save: indicate whether dongle to support power save mode.
370 * @dongle_up: indicate whether dongle up or not.
371 * @roam_on: on/off switch for dongle self-roaming.
372 * @scan_tried: indicates if first scan attempted.
373 * @dcmd_buf: dcmd buffer.
374 * @extra_buf: mainly to grab assoc information.
375 * @debugfsdir: debugfs folder for this device.
376 * @escan_info: escan information.
377 * @escan_timeout: Timer for catch scan timeout.
378 * @escan_timeout_work: scan timeout worker.
379 * @escan_ioctl_buf: dongle command buffer for escan commands.
380 * @vif_list: linked list of vif instances.
381 * @vif_cnt: number of vif instances.
382 * @vif_event: vif event signalling.
383 */
384struct brcmf_cfg80211_info {
385	struct wiphy *wiphy;
386	struct brcmf_cfg80211_conf *conf;
387	struct brcmf_p2p_info p2p;
388	struct brcmf_btcoex_info *btcoex;
389	struct cfg80211_scan_request *scan_request;
390	struct mutex usr_sync;
391	struct brcmf_scan_results *bss_list;
392	struct brcmf_cfg80211_scan_req scan_req_int;
393	struct wl_cfg80211_bss_info *bss_info;
394	struct brcmf_cfg80211_ie ie;
395	struct brcmf_cfg80211_connect_info conn_info;
396	struct brcmf_cfg80211_pmk_list *pmk_list;
397	unsigned long scan_status;
398	struct brcmf_pub *pub;
399	u32 channel;
400	bool active_scan;
401	bool sched_escan;
402	bool ibss_starter;
403	bool pwr_save;
404	bool dongle_up;
405	bool roam_on;
406	bool scan_tried;
407	u8 *dcmd_buf;
408	u8 *extra_buf;
409	struct dentry *debugfsdir;
410	struct escan_info escan_info;
411	struct timer_list escan_timeout;
412	struct work_struct escan_timeout_work;
413	u8 *escan_ioctl_buf;
414	struct list_head vif_list;
415	u8 vif_cnt;
416	struct brcmf_cfg80211_vif_event vif_event;
417	struct completion vif_disabled;
418	struct brcmu_d11inf d11inf;
419};
420
421/**
422 * struct brcmf_tlv - tag_ID/length/value_buffer tuple.
423 *
424 * @id: tag identifier.
425 * @len: number of bytes in value buffer.
426 * @data: value buffer.
427 */
428struct brcmf_tlv {
429	u8 id;
430	u8 len;
431	u8 data[1];
432};
433
434static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
435{
436	return cfg->wiphy;
437}
438
439static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
440{
441	return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
442}
443
444static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
445{
446	return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
447}
448
449static inline
450struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
451{
452	struct brcmf_cfg80211_vif *vif;
453	vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
454	return vif->wdev.netdev;
455}
456
457static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
458{
459	return wdev_to_cfg(ndev->ieee80211_ptr);
460}
461
462static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
463{
464	struct brcmf_if *ifp = netdev_priv(nd);
465	return &ifp->vif->profile;
466}
467
468static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
469{
470	struct brcmf_if *ifp = netdev_priv(ndev);
471	return ifp->vif;
472}
473
474static inline struct
475brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
476{
477	return &cfg->conn_info;
478}
479
480struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
481						  struct device *busdev);
482void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
483s32 brcmf_cfg80211_up(struct net_device *ndev);
484s32 brcmf_cfg80211_down(struct net_device *ndev);
485enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);
486
487struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
488					   enum nl80211_iftype type,
489					   bool pm_block);
490void brcmf_free_vif(struct brcmf_cfg80211_info *cfg,
491	            struct brcmf_cfg80211_vif *vif);
492
493s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
494			  const u8 *vndr_ie_buf, u32 vndr_ie_len);
495s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
496struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key);
497u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
498			struct ieee80211_channel *ch);
499u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state);
500void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
501				  struct brcmf_cfg80211_vif *vif);
502bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
503int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
504					  u8 action, ulong timeout);
505s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
506				struct brcmf_if *ifp, bool aborted,
507				bool fw_abort);
508void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
509void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);
510
511#endif				/* _wl_cfg80211_h_ */