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1 office 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 #include "core.h"
24 #include "fwil_types.h"
25 #include "p2p.h"
26  
27 #define WL_NUM_SCAN_MAX 10
28 #define WL_TLV_INFO_MAX 1024
29 #define WL_BSS_INFO_MAX 2048
30 #define WL_ASSOC_INFO_MAX 512 /* assoc related fil max buf */
31 #define WL_EXTRA_BUF_MAX 2048
32 #define WL_ROAM_TRIGGER_LEVEL -75
33 #define WL_ROAM_DELTA 20
34  
35 /* Keep BRCMF_ESCAN_BUF_SIZE below 64K (65536). Allocing over 64K can be
36 * problematic on some systems and should be avoided.
37 */
38 #define BRCMF_ESCAN_BUF_SIZE 65000
39 #define BRCMF_ESCAN_TIMER_INTERVAL_MS 10000 /* E-Scan timeout */
40  
41 #define WL_ESCAN_ACTION_START 1
42 #define WL_ESCAN_ACTION_CONTINUE 2
43 #define WL_ESCAN_ACTION_ABORT 3
44  
45 #define WL_AUTH_SHARED_KEY 1 /* d11 shared authentication */
46 #define IE_MAX_LEN 512
47  
48 /* IE TLV processing */
49 #define TLV_LEN_OFF 1 /* length offset */
50 #define TLV_HDR_LEN 2 /* header length */
51 #define TLV_BODY_OFF 2 /* body offset */
52 #define TLV_OUI_LEN 3 /* oui id length */
53  
54 /* 802.11 Mgmt Packet flags */
55 #define BRCMF_VNDR_IE_BEACON_FLAG 0x1
56 #define BRCMF_VNDR_IE_PRBRSP_FLAG 0x2
57 #define BRCMF_VNDR_IE_ASSOCRSP_FLAG 0x4
58 #define BRCMF_VNDR_IE_AUTHRSP_FLAG 0x8
59 #define BRCMF_VNDR_IE_PRBREQ_FLAG 0x10
60 #define BRCMF_VNDR_IE_ASSOCREQ_FLAG 0x20
61 /* vendor IE in IW advertisement protocol ID field */
62 #define BRCMF_VNDR_IE_IWAPID_FLAG 0x40
63 /* allow custom IE id */
64 #define BRCMF_VNDR_IE_CUSTOM_FLAG 0x100
65  
66 /* P2P Action Frames flags (spec ordered) */
67 #define BRCMF_VNDR_IE_GONREQ_FLAG 0x001000
68 #define BRCMF_VNDR_IE_GONRSP_FLAG 0x002000
69 #define BRCMF_VNDR_IE_GONCFM_FLAG 0x004000
70 #define BRCMF_VNDR_IE_INVREQ_FLAG 0x008000
71 #define BRCMF_VNDR_IE_INVRSP_FLAG 0x010000
72 #define BRCMF_VNDR_IE_DISREQ_FLAG 0x020000
73 #define BRCMF_VNDR_IE_DISRSP_FLAG 0x040000
74 #define BRCMF_VNDR_IE_PRDREQ_FLAG 0x080000
75 #define BRCMF_VNDR_IE_PRDRSP_FLAG 0x100000
76  
77 #define BRCMF_VNDR_IE_P2PAF_SHIFT 12
78  
79 #define BRCMF_MAX_DEFAULT_KEYS 6
80  
81 /* beacon loss timeout defaults */
82 #define BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON 2
83 #define BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF 4
84  
85 #define BRCMF_VIF_EVENT_TIMEOUT msecs_to_jiffies(1500)
86  
87 /**
88 * enum brcmf_scan_status - scan engine status
89 *
90 * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
91 * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
92 * @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
93 */
94 enum brcmf_scan_status {
95 BRCMF_SCAN_STATUS_BUSY,
96 BRCMF_SCAN_STATUS_ABORT,
97 BRCMF_SCAN_STATUS_SUPPRESS,
98 };
99  
100 /* dongle configuration */
101 struct brcmf_cfg80211_conf {
102 u32 frag_threshold;
103 u32 rts_threshold;
104 u32 retry_short;
105 u32 retry_long;
106 };
107  
108 /* security information with currently associated ap */
109 struct brcmf_cfg80211_security {
110 u32 wpa_versions;
111 u32 auth_type;
112 u32 cipher_pairwise;
113 u32 cipher_group;
114 };
115  
116 /**
117 * struct brcmf_cfg80211_profile - profile information.
118 *
119 * @bssid: bssid of joined/joining ibss.
120 * @sec: security information.
121 * @key: key information
122 */
123 struct brcmf_cfg80211_profile {
124 u8 bssid[ETH_ALEN];
125 struct brcmf_cfg80211_security sec;
126 struct brcmf_wsec_key key[BRCMF_MAX_DEFAULT_KEYS];
127 };
128  
129 /**
130 * enum brcmf_vif_status - bit indices for vif status.
131 *
132 * @BRCMF_VIF_STATUS_READY: ready for operation.
133 * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
134 * @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
135 * @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
136 * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
137 */
138 enum brcmf_vif_status {
139 BRCMF_VIF_STATUS_READY,
140 BRCMF_VIF_STATUS_CONNECTING,
141 BRCMF_VIF_STATUS_CONNECTED,
142 BRCMF_VIF_STATUS_DISCONNECTING,
143 BRCMF_VIF_STATUS_AP_CREATED
144 };
145  
146 /**
147 * struct vif_saved_ie - holds saved IEs for a virtual interface.
148 *
149 * @probe_req_ie: IE info for probe request.
150 * @probe_res_ie: IE info for probe response.
151 * @beacon_ie: IE info for beacon frame.
152 * @probe_req_ie_len: IE info length for probe request.
153 * @probe_res_ie_len: IE info length for probe response.
154 * @beacon_ie_len: IE info length for beacon frame.
155 */
156 struct vif_saved_ie {
157 u8 probe_req_ie[IE_MAX_LEN];
158 u8 probe_res_ie[IE_MAX_LEN];
159 u8 beacon_ie[IE_MAX_LEN];
160 u8 assoc_req_ie[IE_MAX_LEN];
161 u32 probe_req_ie_len;
162 u32 probe_res_ie_len;
163 u32 beacon_ie_len;
164 u32 assoc_req_ie_len;
165 };
166  
167 /**
168 * struct brcmf_cfg80211_vif - virtual interface specific information.
169 *
170 * @ifp: lower layer interface pointer
171 * @wdev: wireless device.
172 * @profile: profile information.
173 * @sme_state: SME state using enum brcmf_vif_status bits.
174 * @list: linked list.
175 * @mgmt_rx_reg: registered rx mgmt frame types.
176 * @mbss: Multiple BSS type, set if not first AP (not relevant for P2P).
177 */
178 struct brcmf_cfg80211_vif {
179 struct brcmf_if *ifp;
180 struct wireless_dev wdev;
181 struct brcmf_cfg80211_profile profile;
182 unsigned long sme_state;
183 struct vif_saved_ie saved_ie;
184 struct list_head list;
185 u16 mgmt_rx_reg;
186 bool mbss;
187 int is_11d;
188 };
189  
190 /* association inform */
191 struct brcmf_cfg80211_connect_info {
192 u8 *req_ie;
193 s32 req_ie_len;
194 u8 *resp_ie;
195 s32 resp_ie_len;
196 };
197  
198 /* assoc ie length */
199 struct brcmf_cfg80211_assoc_ielen_le {
200 __le32 req_len;
201 __le32 resp_len;
202 };
203  
204 /* dongle escan state */
205 enum wl_escan_state {
206 WL_ESCAN_STATE_IDLE,
207 WL_ESCAN_STATE_SCANNING
208 };
209  
210 struct escan_info {
211 u32 escan_state;
212 u8 *escan_buf;
213 struct wiphy *wiphy;
214 struct brcmf_if *ifp;
215 s32 (*run)(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
216 struct cfg80211_scan_request *request);
217 };
218  
219 /**
220 * struct brcmf_cfg80211_vif_event - virtual interface event information.
221 *
222 * @vif_wq: waitqueue awaiting interface event from firmware.
223 * @vif_event_lock: protects other members in this structure.
224 * @vif_complete: completion for net attach.
225 * @action: either add, change, or delete.
226 * @vif: virtual interface object related to the event.
227 */
228 struct brcmf_cfg80211_vif_event {
229 wait_queue_head_t vif_wq;
230 spinlock_t vif_event_lock;
231 u8 action;
232 struct brcmf_cfg80211_vif *vif;
233 };
234  
235 /**
236 * struct brcmf_cfg80211_wowl - wowl related information.
237 *
238 * @active: set on suspend, cleared on resume.
239 * @pre_pmmode: firmware PM mode at entering suspend.
240 * @nd: net dectect data.
241 * @nd_info: helper struct to pass to cfg80211.
242 * @nd_data_wait: wait queue to sync net detect data.
243 * @nd_data_completed: completion for net detect data.
244 * @nd_enabled: net detect enabled.
245 */
246 struct brcmf_cfg80211_wowl {
247 bool active;
248 u32 pre_pmmode;
249 struct cfg80211_wowlan_nd_match *nd;
250 struct cfg80211_wowlan_nd_info *nd_info;
251 wait_queue_head_t nd_data_wait;
252 bool nd_data_completed;
253 bool nd_enabled;
254 };
255  
256 /**
257 * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
258 *
259 * @wiphy: wiphy object for cfg80211 interface.
260 * @ops: pointer to copy of ops as registered with wiphy object.
261 * @conf: dongle configuration.
262 * @p2p: peer-to-peer specific information.
263 * @btcoex: Bluetooth coexistence information.
264 * @scan_request: cfg80211 scan request object.
265 * @usr_sync: mainly for dongle up/down synchronization.
266 * @bss_list: bss_list holding scanned ap information.
267 * @bss_info: bss information for cfg80211 layer.
268 * @conn_info: association info.
269 * @pmk_list: wpa2 pmk list.
270 * @scan_status: scan activity on the dongle.
271 * @pub: common driver information.
272 * @channel: current channel.
273 * @active_scan: current scan mode.
274 * @sched_escan: e-scan for scheduled scan support running.
275 * @ibss_starter: indicates this sta is ibss starter.
276 * @pwr_save: indicate whether dongle to support power save mode.
277 * @dongle_up: indicate whether dongle up or not.
278 * @roam_on: on/off switch for dongle self-roaming.
279 * @scan_tried: indicates if first scan attempted.
280 * @dcmd_buf: dcmd buffer.
281 * @extra_buf: mainly to grab assoc information.
282 * @debugfsdir: debugfs folder for this device.
283 * @escan_info: escan information.
284 * @escan_timeout: Timer for catch scan timeout.
285 * @escan_timeout_work: scan timeout worker.
286 * @vif_list: linked list of vif instances.
287 * @vif_cnt: number of vif instances.
288 * @vif_event: vif event signalling.
289 * @wowl: wowl related information.
290 */
291 struct brcmf_cfg80211_info {
292 struct wiphy *wiphy;
293 struct cfg80211_ops *ops;
294 struct brcmf_cfg80211_conf *conf;
295 struct brcmf_p2p_info p2p;
296 struct brcmf_btcoex_info *btcoex;
297 struct cfg80211_scan_request *scan_request;
298 struct mutex usr_sync;
299 struct wl_cfg80211_bss_info *bss_info;
300 struct brcmf_cfg80211_connect_info conn_info;
301 struct brcmf_pmk_list_le pmk_list;
302 unsigned long scan_status;
303 struct brcmf_pub *pub;
304 u32 channel;
305 bool active_scan;
306 bool sched_escan;
307 bool ibss_starter;
308 bool pwr_save;
309 bool dongle_up;
310 bool scan_tried;
311 u8 *dcmd_buf;
312 u8 *extra_buf;
313 struct dentry *debugfsdir;
314 struct escan_info escan_info;
315 struct timer_list escan_timeout;
316 struct work_struct escan_timeout_work;
317 struct list_head vif_list;
318 struct brcmf_cfg80211_vif_event vif_event;
319 struct completion vif_disabled;
320 struct brcmu_d11inf d11inf;
321 struct brcmf_assoclist_le assoclist;
322 struct brcmf_cfg80211_wowl wowl;
323 };
324  
325 /**
326 * struct brcmf_tlv - tag_ID/length/value_buffer tuple.
327 *
328 * @id: tag identifier.
329 * @len: number of bytes in value buffer.
330 * @data: value buffer.
331 */
332 struct brcmf_tlv {
333 u8 id;
334 u8 len;
335 u8 data[1];
336 };
337  
338 static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
339 {
340 return cfg->wiphy;
341 }
342  
343 static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
344 {
345 return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
346 }
347  
348 static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
349 {
350 return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
351 }
352  
353 static inline
354 struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
355 {
356 struct brcmf_cfg80211_vif *vif;
357 vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
358 return vif->wdev.netdev;
359 }
360  
361 static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
362 {
363 return wdev_to_cfg(ndev->ieee80211_ptr);
364 }
365  
366 static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
367 {
368 struct brcmf_if *ifp = netdev_priv(nd);
369 return &ifp->vif->profile;
370 }
371  
372 static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
373 {
374 struct brcmf_if *ifp = netdev_priv(ndev);
375 return ifp->vif;
376 }
377  
378 static inline struct
379 brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
380 {
381 return &cfg->conn_info;
382 }
383  
384 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
385 struct device *busdev,
386 bool p2pdev_forced);
387 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
388 s32 brcmf_cfg80211_up(struct net_device *ndev);
389 s32 brcmf_cfg80211_down(struct net_device *ndev);
390 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);
391  
392 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
393 enum nl80211_iftype type);
394 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);
395  
396 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
397 const u8 *vndr_ie_buf, u32 vndr_ie_len);
398 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
399 const struct brcmf_tlv *
400 brcmf_parse_tlvs(const void *buf, int buflen, uint key);
401 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
402 struct ieee80211_channel *ch);
403 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
404 unsigned long state);
405 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
406 struct brcmf_cfg80211_vif *vif);
407 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
408 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg,
409 u8 action, ulong timeout);
410 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
411 struct brcmf_if *ifp, bool aborted,
412 bool fw_abort);
413 void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
414 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);
415 void brcmf_cfg80211_free_netdev(struct net_device *ndev);
416  
417 #endif /* BRCMFMAC_CFG80211_H */