1 // SPDX-License-Identifier: ISC
2 /*
3 * Copyright (c) 2010 Broadcom Corporation
4 */
5
6 #ifndef BRCMFMAC_CFG80211_H
7 #define BRCMFMAC_CFG80211_H
8
9 /* for brcmu_d11inf */
10 #include <brcmu_d11.h>
11
12 #include "core.h"
13 #include "fwil_types.h"
14 #include "p2p.h"
15
16 #define BRCMF_SCAN_IE_LEN_MAX 2048
17
18 #define WL_NUM_SCAN_MAX 10
19 #define WL_TLV_INFO_MAX 1024
20 #define WL_BSS_INFO_MAX 2048
21 #define WL_ASSOC_INFO_MAX 512 /* assoc related fil max buf */
22 #define WL_EXTRA_BUF_MAX 2048
23 #define WL_ROAM_TRIGGER_LEVEL -75
24 #define WL_ROAM_DELTA 20
25
26 /* Keep BRCMF_ESCAN_BUF_SIZE below 64K (65536). Allocing over 64K can be
27 * problematic on some systems and should be avoided.
28 */
29 #define BRCMF_ESCAN_BUF_SIZE 65000
30 #define BRCMF_ESCAN_TIMER_INTERVAL_MS 10000 /* E-Scan timeout */
31
32 #define WL_ESCAN_ACTION_START 1
33 #define WL_ESCAN_ACTION_CONTINUE 2
34 #define WL_ESCAN_ACTION_ABORT 3
35
36 #define WL_AUTH_SHARED_KEY 1 /* d11 shared authentication */
37 #define IE_MAX_LEN 512
38
39 /* IE TLV processing */
40 #define TLV_LEN_OFF 1 /* length offset */
41 #define TLV_HDR_LEN 2 /* header length */
42 #define TLV_BODY_OFF 2 /* body offset */
43 #define TLV_OUI_LEN 3 /* oui id length */
44
45 /* 802.11 Mgmt Packet flags */
46 #define BRCMF_VNDR_IE_BEACON_FLAG 0x1
47 #define BRCMF_VNDR_IE_PRBRSP_FLAG 0x2
48 #define BRCMF_VNDR_IE_ASSOCRSP_FLAG 0x4
49 #define BRCMF_VNDR_IE_AUTHRSP_FLAG 0x8
50 #define BRCMF_VNDR_IE_PRBREQ_FLAG 0x10
51 #define BRCMF_VNDR_IE_ASSOCREQ_FLAG 0x20
52 /* vendor IE in IW advertisement protocol ID field */
53 #define BRCMF_VNDR_IE_IWAPID_FLAG 0x40
54 /* allow custom IE id */
55 #define BRCMF_VNDR_IE_CUSTOM_FLAG 0x100
56
57 /* P2P Action Frames flags (spec ordered) */
58 #define BRCMF_VNDR_IE_GONREQ_FLAG 0x001000
59 #define BRCMF_VNDR_IE_GONRSP_FLAG 0x002000
60 #define BRCMF_VNDR_IE_GONCFM_FLAG 0x004000
61 #define BRCMF_VNDR_IE_INVREQ_FLAG 0x008000
62 #define BRCMF_VNDR_IE_INVRSP_FLAG 0x010000
63 #define BRCMF_VNDR_IE_DISREQ_FLAG 0x020000
64 #define BRCMF_VNDR_IE_DISRSP_FLAG 0x040000
65 #define BRCMF_VNDR_IE_PRDREQ_FLAG 0x080000
66 #define BRCMF_VNDR_IE_PRDRSP_FLAG 0x100000
67
68 #define BRCMF_VNDR_IE_P2PAF_SHIFT 12
69
70 #define BRCMF_MAX_DEFAULT_KEYS 6
71
72 /* beacon loss timeout defaults */
73 #define BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON 2
74 #define BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF 4
75
76 #define BRCMF_VIF_EVENT_TIMEOUT msecs_to_jiffies(1500)
77
78 /**
79 * enum brcmf_scan_status - scan engine status
80 *
81 * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
82 * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
83 * @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
84 */
85 enum brcmf_scan_status {
86 BRCMF_SCAN_STATUS_BUSY,
87 BRCMF_SCAN_STATUS_ABORT,
88 BRCMF_SCAN_STATUS_SUPPRESS,
89 };
90
91 /* dongle configuration */
92 struct brcmf_cfg80211_conf {
93 u32 frag_threshold;
94 u32 rts_threshold;
95 u32 retry_short;
96 u32 retry_long;
97 };
98
99 /* security information with currently associated ap */
100 struct brcmf_cfg80211_security {
101 u32 wpa_versions;
102 u32 auth_type;
103 u32 cipher_pairwise;
104 u32 cipher_group;
105 };
106
107 enum brcmf_profile_fwsup {
108 BRCMF_PROFILE_FWSUP_NONE,
109 BRCMF_PROFILE_FWSUP_PSK,
110 BRCMF_PROFILE_FWSUP_1X
111 };
112
113 /**
114 * struct brcmf_cfg80211_profile - profile information.
115 *
116 * @bssid: bssid of joined/joining ibss.
117 * @sec: security information.
118 * @key: key information
119 */
120 struct brcmf_cfg80211_profile {
121 u8 bssid[ETH_ALEN];
122 struct brcmf_cfg80211_security sec;
123 struct brcmf_wsec_key key[BRCMF_MAX_DEFAULT_KEYS];
124 enum brcmf_profile_fwsup use_fwsup;
125 };
126
127 /**
128 * enum brcmf_vif_status - bit indices for vif status.
129 *
130 * @BRCMF_VIF_STATUS_READY: ready for operation.
131 * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
132 * @BRCMF_VIF_STATUS_CONNECTED: connected/joined successfully.
133 * @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
134 * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
135 * @BRCMF_VIF_STATUS_EAP_SUCCUSS: EAPOL handshake successful.
136 * @BRCMF_VIF_STATUS_ASSOC_SUCCESS: successful SET_SSID received.
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 BRCMF_VIF_STATUS_EAP_SUCCESS,
145 BRCMF_VIF_STATUS_ASSOC_SUCCESS,
146 };
147
148 /**
149 * struct vif_saved_ie - holds saved IEs for a virtual interface.
150 *
151 * @probe_req_ie: IE info for probe request.
152 * @probe_res_ie: IE info for probe response.
153 * @beacon_ie: IE info for beacon frame.
154 * @probe_req_ie_len: IE info length for probe request.
155 * @probe_res_ie_len: IE info length for probe response.
156 * @beacon_ie_len: IE info length for beacon frame.
157 */
158 struct vif_saved_ie {
159 u8 probe_req_ie[IE_MAX_LEN];
160 u8 probe_res_ie[IE_MAX_LEN];
161 u8 beacon_ie[IE_MAX_LEN];
162 u8 assoc_req_ie[IE_MAX_LEN];
163 u32 probe_req_ie_len;
164 u32 probe_res_ie_len;
165 u32 beacon_ie_len;
166 u32 assoc_req_ie_len;
167 };
168
169 /**
170 * struct brcmf_cfg80211_vif - virtual interface specific information.
171 *
172 * @ifp: lower layer interface pointer
173 * @wdev: wireless device.
174 * @profile: profile information.
175 * @sme_state: SME state using enum brcmf_vif_status bits.
176 * @list: linked list.
177 * @mgmt_rx_reg: registered rx mgmt frame types.
178 * @mbss: Multiple BSS type, set if not first AP (not relevant for P2P).
179 */
180 struct brcmf_cfg80211_vif {
181 struct brcmf_if *ifp;
182 struct wireless_dev wdev;
183 struct brcmf_cfg80211_profile profile;
184 unsigned long sme_state;
185 struct vif_saved_ie saved_ie;
186 struct list_head list;
187 u16 mgmt_rx_reg;
188 bool mbss;
189 int is_11d;
190 };
191
192 /* association inform */
193 struct brcmf_cfg80211_connect_info {
194 u8 *req_ie;
195 s32 req_ie_len;
196 u8 *resp_ie;
197 s32 resp_ie_len;
198 };
199
200 /* assoc ie length */
201 struct brcmf_cfg80211_assoc_ielen_le {
202 __le32 req_len;
203 __le32 resp_len;
204 };
205
206 /* dongle escan state */
207 enum wl_escan_state {
208 WL_ESCAN_STATE_IDLE,
209 WL_ESCAN_STATE_SCANNING
210 };
211
212 struct escan_info {
213 u32 escan_state;
214 u8 *escan_buf;
215 struct wiphy *wiphy;
216 struct brcmf_if *ifp;
217 s32 (*run)(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
218 struct cfg80211_scan_request *request);
219 };
220
221 /**
222 * struct brcmf_cfg80211_vif_event - virtual interface event information.
223 *
224 * @vif_wq: waitqueue awaiting interface event from firmware.
225 * @vif_event_lock: protects other members in this structure.
226 * @vif_complete: completion for net attach.
227 * @action: either add, change, or delete.
228 * @vif: virtual interface object related to the event.
229 */
230 struct brcmf_cfg80211_vif_event {
231 wait_queue_head_t vif_wq;
232 spinlock_t vif_event_lock;
233 u8 action;
234 struct brcmf_cfg80211_vif *vif;
235 };
236
237 /**
238 * struct brcmf_cfg80211_wowl - wowl related information.
239 *
240 * @active: set on suspend, cleared on resume.
241 * @pre_pmmode: firmware PM mode at entering suspend.
242 * @nd: net dectect data.
243 * @nd_info: helper struct to pass to cfg80211.
244 * @nd_data_wait: wait queue to sync net detect data.
245 * @nd_data_completed: completion for net detect data.
246 * @nd_enabled: net detect enabled.
247 */
248 struct brcmf_cfg80211_wowl {
249 bool active;
250 u32 pre_pmmode;
251 struct cfg80211_wowlan_nd_match *nd;
252 struct cfg80211_wowlan_nd_info *nd_info;
253 wait_queue_head_t nd_data_wait;
254 bool nd_data_completed;
255 bool nd_enabled;
256 };
257
258 /**
259 * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
260 *
261 * @wiphy: wiphy object for cfg80211 interface.
262 * @ops: pointer to copy of ops as registered with wiphy object.
263 * @conf: dongle configuration.
264 * @p2p: peer-to-peer specific information.
265 * @btcoex: Bluetooth coexistence information.
266 * @scan_request: cfg80211 scan request object.
267 * @usr_sync: mainly for dongle up/down synchronization.
268 * @bss_list: bss_list holding scanned ap information.
269 * @bss_info: bss information for cfg80211 layer.
270 * @conn_info: association info.
271 * @pmk_list: wpa2 pmk list.
272 * @scan_status: scan activity on the dongle.
273 * @pub: common driver information.
274 * @channel: current channel.
275 * @int_escan_map: bucket map for which internal e-scan is done.
276 * @ibss_starter: indicates this sta is ibss starter.
277 * @pwr_save: indicate whether dongle to support power save mode.
278 * @dongle_up: indicate whether dongle up or not.
279 * @roam_on: on/off switch for dongle self-roaming.
280 * @scan_tried: indicates if first scan attempted.
281 * @dcmd_buf: dcmd buffer.
282 * @extra_buf: mainly to grab assoc information.
283 * @debugfsdir: debugfs folder for this device.
284 * @escan_info: escan information.
285 * @escan_timeout: Timer for catch scan timeout.
286 * @escan_timeout_work: scan timeout worker.
287 * @vif_list: linked list of vif instances.
288 * @vif_cnt: number of vif instances.
289 * @vif_event: vif event signalling.
290 * @wowl: wowl related information.
291 * @pno: information of pno module.
292 */
293 struct brcmf_cfg80211_info {
294 struct wiphy *wiphy;
295 struct brcmf_cfg80211_conf *conf;
296 struct brcmf_p2p_info p2p;
297 struct brcmf_btcoex_info *btcoex;
298 struct cfg80211_scan_request *scan_request;
299 struct mutex usr_sync;
300 struct wl_cfg80211_bss_info *bss_info;
301 struct brcmf_cfg80211_connect_info conn_info;
302 struct brcmf_pmk_list_le pmk_list;
303 unsigned long scan_status;
304 struct brcmf_pub *pub;
305 u32 channel;
306 u32 int_escan_map;
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 struct brcmf_pno_info *pno;
324 };
325
326 /**
327 * struct brcmf_tlv - tag_ID/length/value_buffer tuple.
328 *
329 * @id: tag identifier.
330 * @len: number of bytes in value buffer.
331 * @data: value buffer.
332 */
333 struct brcmf_tlv {
334 u8 id;
335 u8 len;
336 u8 data[1];
337 };
338
cfg_to_wiphy(struct brcmf_cfg80211_info * cfg)339 static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
340 {
341 return cfg->wiphy;
342 }
343
wiphy_to_cfg(struct wiphy * w)344 static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
345 {
346 struct brcmf_pub *drvr = wiphy_priv(w);
347 return drvr->config;
348 }
349
wdev_to_cfg(struct wireless_dev * wd)350 static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
351 {
352 return wiphy_to_cfg(wd->wiphy);
353 }
354
wdev_to_vif(struct wireless_dev * wdev)355 static inline struct brcmf_cfg80211_vif *wdev_to_vif(struct wireless_dev *wdev)
356 {
357 return container_of(wdev, struct brcmf_cfg80211_vif, wdev);
358 }
359
360 static inline
cfg_to_ndev(struct brcmf_cfg80211_info * cfg)361 struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
362 {
363 return brcmf_get_ifp(cfg->pub, 0)->ndev;
364 }
365
ndev_to_cfg(struct net_device * ndev)366 static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
367 {
368 return wdev_to_cfg(ndev->ieee80211_ptr);
369 }
370
ndev_to_prof(struct net_device * nd)371 static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
372 {
373 struct brcmf_if *ifp = netdev_priv(nd);
374 return &ifp->vif->profile;
375 }
376
ndev_to_vif(struct net_device * ndev)377 static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
378 {
379 struct brcmf_if *ifp = netdev_priv(ndev);
380 return ifp->vif;
381 }
382
383 static inline struct
cfg_to_conn(struct brcmf_cfg80211_info * cfg)384 brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
385 {
386 return &cfg->conn_info;
387 }
388
389 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
390 struct cfg80211_ops *ops,
391 bool p2pdev_forced);
392 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
393 s32 brcmf_cfg80211_up(struct net_device *ndev);
394 s32 brcmf_cfg80211_down(struct net_device *ndev);
395 struct cfg80211_ops *brcmf_cfg80211_get_ops(struct brcmf_mp_device *settings);
396 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);
397
398 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
399 enum nl80211_iftype type);
400 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);
401
402 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
403 const u8 *vndr_ie_buf, u32 vndr_ie_len);
404 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
405 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
406 struct ieee80211_channel *ch);
407 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
408 unsigned long state);
409 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
410 struct brcmf_cfg80211_vif *vif);
411 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
412 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg,
413 u8 action, ulong timeout);
414 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
415 struct brcmf_if *ifp, bool aborted,
416 bool fw_abort);
417 void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
418 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);
419 void brcmf_cfg80211_free_netdev(struct net_device *ndev);
420
421 #endif /* BRCMFMAC_CFG80211_H */
422