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 struct brcmf_cfg80211_conf;
21 struct brcmf_cfg80211_iface;
22 struct brcmf_cfg80211_priv;
23 struct brcmf_cfg80211_security;
24 struct brcmf_cfg80211_ibss;
25
26 #define WL_DBG_NONE 0
27 #define WL_DBG_CONN (1 << 5)
28 #define WL_DBG_SCAN (1 << 4)
29 #define WL_DBG_TRACE (1 << 3)
30 #define WL_DBG_INFO (1 << 1)
31 #define WL_DBG_ERR (1 << 0)
32 #define WL_DBG_MASK ((WL_DBG_INFO | WL_DBG_ERR | WL_DBG_TRACE) | \
33 (WL_DBG_SCAN) | (WL_DBG_CONN))
34
35 #define WL_ERR(fmt, ...) \
36 do { \
37 if (brcmf_dbg_level & WL_DBG_ERR) { \
38 if (net_ratelimit()) { \
39 pr_err("ERROR @%s : " fmt, \
40 __func__, ##__VA_ARGS__); \
41 } \
42 } \
43 } while (0)
44
45 #if (defined DEBUG)
46 #define WL_INFO(fmt, ...) \
47 do { \
48 if (brcmf_dbg_level & WL_DBG_INFO) { \
49 if (net_ratelimit()) { \
50 pr_err("INFO @%s : " fmt, \
51 __func__, ##__VA_ARGS__); \
52 } \
53 } \
54 } while (0)
55
56 #define WL_TRACE(fmt, ...) \
57 do { \
58 if (brcmf_dbg_level & WL_DBG_TRACE) { \
59 if (net_ratelimit()) { \
60 pr_err("TRACE @%s : " fmt, \
61 __func__, ##__VA_ARGS__); \
62 } \
63 } \
64 } while (0)
65
66 #define WL_SCAN(fmt, ...) \
67 do { \
68 if (brcmf_dbg_level & WL_DBG_SCAN) { \
69 if (net_ratelimit()) { \
70 pr_err("SCAN @%s : " fmt, \
71 __func__, ##__VA_ARGS__); \
72 } \
73 } \
74 } while (0)
75
76 #define WL_CONN(fmt, ...) \
77 do { \
78 if (brcmf_dbg_level & WL_DBG_CONN) { \
79 if (net_ratelimit()) { \
80 pr_err("CONN @%s : " fmt, \
81 __func__, ##__VA_ARGS__); \
82 } \
83 } \
84 } while (0)
85
86 #else /* (defined DEBUG) */
87 #define WL_INFO(fmt, args...)
88 #define WL_TRACE(fmt, args...)
89 #define WL_SCAN(fmt, args...)
90 #define WL_CONN(fmt, args...)
91 #endif /* (defined DEBUG) */
92
93 #define WL_NUM_SCAN_MAX 1
94 #define WL_NUM_PMKIDS_MAX MAXPMKID /* will be used
95 * for 2.6.33 kernel
96 * or later
97 */
98 #define WL_SCAN_BUF_MAX (1024 * 8)
99 #define WL_TLV_INFO_MAX 1024
100 #define WL_BSS_INFO_MAX 2048
101 #define WL_ASSOC_INFO_MAX 512 /*
102 * needs to grab assoc info from dongle to
103 * report it to cfg80211 through "connect"
104 * event
105 */
106 #define WL_DCMD_LEN_MAX 1024
107 #define WL_EXTRA_BUF_MAX 2048
108 #define WL_ISCAN_BUF_MAX 2048 /*
109 * the buf length can be BRCMF_DCMD_MAXLEN
110 * to reduce iteration
111 */
112 #define WL_ISCAN_TIMER_INTERVAL_MS 3000
113 #define WL_SCAN_ERSULTS_LAST (BRCMF_SCAN_RESULTS_NO_MEM+1)
114 #define WL_AP_MAX 256 /* virtually unlimitted as long
115 * as kernel memory allows
116 */
117
118 #define WL_ROAM_TRIGGER_LEVEL -75
119 #define WL_ROAM_DELTA 20
120 #define WL_BEACON_TIMEOUT 3
121
122 #define WL_SCAN_CHANNEL_TIME 40
123 #define WL_SCAN_UNASSOC_TIME 40
124 #define WL_SCAN_PASSIVE_TIME 120
125
126 /* dongle status */
127 enum wl_status {
128 WL_STATUS_READY,
129 WL_STATUS_SCANNING,
130 WL_STATUS_SCAN_ABORTING,
131 WL_STATUS_CONNECTING,
132 WL_STATUS_CONNECTED
133 };
134
135 /* wi-fi mode */
136 enum wl_mode {
137 WL_MODE_BSS,
138 WL_MODE_IBSS,
139 WL_MODE_AP
140 };
141
142 /* dongle profile list */
143 enum wl_prof_list {
144 WL_PROF_MODE,
145 WL_PROF_SSID,
146 WL_PROF_SEC,
147 WL_PROF_IBSS,
148 WL_PROF_BAND,
149 WL_PROF_BSSID,
150 WL_PROF_ACT,
151 WL_PROF_BEACONINT,
152 WL_PROF_DTIMPERIOD
153 };
154
155 /* dongle iscan state */
156 enum wl_iscan_state {
157 WL_ISCAN_STATE_IDLE,
158 WL_ISCAN_STATE_SCANING
159 };
160
161 /* dongle configuration */
162 struct brcmf_cfg80211_conf {
163 u32 mode; /* adhoc , infrastructure or ap */
164 u32 frag_threshold;
165 u32 rts_threshold;
166 u32 retry_short;
167 u32 retry_long;
168 s32 tx_power;
169 struct ieee80211_channel channel;
170 };
171
172 /* cfg80211 main event loop */
173 struct brcmf_cfg80211_event_loop {
174 s32(*handler[BRCMF_E_LAST]) (struct brcmf_cfg80211_priv *cfg_priv,
175 struct net_device *ndev,
176 const struct brcmf_event_msg *e,
177 void *data);
178 };
179
180 /* representing interface of cfg80211 plane */
181 struct brcmf_cfg80211_iface {
182 struct brcmf_cfg80211_priv *cfg_priv;
183 };
184
185 struct brcmf_cfg80211_dev {
186 void *driver_data; /* to store cfg80211 object information */
187 };
188
189 /* basic structure of scan request */
190 struct brcmf_cfg80211_scan_req {
191 struct brcmf_ssid_le ssid_le;
192 };
193
194 /* basic structure of information element */
195 struct brcmf_cfg80211_ie {
196 u16 offset;
197 u8 buf[WL_TLV_INFO_MAX];
198 };
199
200 /* event queue for cfg80211 main event */
201 struct brcmf_cfg80211_event_q {
202 struct list_head evt_q_list;
203 u32 etype;
204 struct brcmf_event_msg emsg;
205 s8 edata[1];
206 };
207
208 /* security information with currently associated ap */
209 struct brcmf_cfg80211_security {
210 u32 wpa_versions;
211 u32 auth_type;
212 u32 cipher_pairwise;
213 u32 cipher_group;
214 u32 wpa_auth;
215 };
216
217 /* ibss information for currently joined ibss network */
218 struct brcmf_cfg80211_ibss {
219 u8 beacon_interval; /* in millisecond */
220 u8 atim; /* in millisecond */
221 s8 join_only;
222 u8 band;
223 u8 channel;
224 };
225
226 /* dongle profile */
227 struct brcmf_cfg80211_profile {
228 u32 mode;
229 struct brcmf_ssid ssid;
230 u8 bssid[ETH_ALEN];
231 u16 beacon_interval;
232 u8 dtim_period;
233 struct brcmf_cfg80211_security sec;
234 struct brcmf_cfg80211_ibss ibss;
235 s32 band;
236 };
237
238 /* dongle iscan event loop */
239 struct brcmf_cfg80211_iscan_eloop {
240 s32 (*handler[WL_SCAN_ERSULTS_LAST])
241 (struct brcmf_cfg80211_priv *cfg_priv);
242 };
243
244 /* dongle iscan controller */
245 struct brcmf_cfg80211_iscan_ctrl {
246 struct net_device *ndev;
247 struct timer_list timer;
248 u32 timer_ms;
249 u32 timer_on;
250 s32 state;
251 struct work_struct work;
252 struct brcmf_cfg80211_iscan_eloop el;
253 void *data;
254 s8 dcmd_buf[BRCMF_DCMD_SMLEN];
255 s8 scan_buf[WL_ISCAN_BUF_MAX];
256 };
257
258 /* association inform */
259 struct brcmf_cfg80211_connect_info {
260 u8 *req_ie;
261 s32 req_ie_len;
262 u8 *resp_ie;
263 s32 resp_ie_len;
264 };
265
266 /* assoc ie length */
267 struct brcmf_cfg80211_assoc_ielen_le {
268 __le32 req_len;
269 __le32 resp_len;
270 };
271
272 /* wpa2 pmk list */
273 struct brcmf_cfg80211_pmk_list {
274 struct pmkid_list pmkids;
275 struct pmkid foo[MAXPMKID - 1];
276 };
277
278 /* dongle private data of cfg80211 interface */
279 struct brcmf_cfg80211_priv {
280 struct wireless_dev *wdev; /* representing wl cfg80211 device */
281 struct brcmf_cfg80211_conf *conf; /* dongle configuration */
282 struct cfg80211_scan_request *scan_request; /* scan request
283 object */
284 struct brcmf_cfg80211_event_loop el; /* main event loop */
285 struct list_head evt_q_list; /* used for event queue */
286 spinlock_t evt_q_lock; /* for event queue synchronization */
287 struct mutex usr_sync; /* maily for dongle up/down synchronization */
288 struct brcmf_scan_results *bss_list; /* bss_list holding scanned
289 ap information */
290 struct brcmf_scan_results *scan_results;
291 struct brcmf_cfg80211_scan_req *scan_req_int; /* scan request object
292 for internal purpose */
293 struct wl_cfg80211_bss_info *bss_info; /* bss information for
294 cfg80211 layer */
295 struct brcmf_cfg80211_ie ie; /* information element object for
296 internal purpose */
297 struct brcmf_cfg80211_profile *profile; /* holding dongle profile */
298 struct brcmf_cfg80211_iscan_ctrl *iscan; /* iscan controller */
299 struct brcmf_cfg80211_connect_info conn_info; /* association info */
300 struct brcmf_cfg80211_pmk_list *pmk_list; /* wpa2 pmk list */
301 struct work_struct event_work; /* event handler work struct */
302 unsigned long status; /* current dongle status */
303 void *pub;
304 u32 channel; /* current channel */
305 bool iscan_on; /* iscan on/off switch */
306 bool iscan_kickstart; /* indicate iscan already started */
307 bool active_scan; /* current scan mode */
308 bool ibss_starter; /* indicates this sta is ibss starter */
309 bool link_up; /* link/connection up flag */
310 bool pwr_save; /* indicate whether dongle to support
311 power save mode */
312 bool dongle_up; /* indicate whether dongle up or not */
313 bool roam_on; /* on/off switch for dongle self-roaming */
314 bool scan_tried; /* indicates if first scan attempted */
315 u8 *dcmd_buf; /* dcmd buffer */
316 u8 *extra_buf; /* maily to grab assoc information */
317 struct dentry *debugfsdir;
318 u8 ci[0] __aligned(NETDEV_ALIGN);
319 };
320
cfg_to_wiphy(struct brcmf_cfg80211_priv * w)321 static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_priv *w)
322 {
323 return w->wdev->wiphy;
324 }
325
wiphy_to_cfg(struct wiphy * w)326 static inline struct brcmf_cfg80211_priv *wiphy_to_cfg(struct wiphy *w)
327 {
328 return (struct brcmf_cfg80211_priv *)(wiphy_priv(w));
329 }
330
wdev_to_cfg(struct wireless_dev * wd)331 static inline struct brcmf_cfg80211_priv *wdev_to_cfg(struct wireless_dev *wd)
332 {
333 return (struct brcmf_cfg80211_priv *)(wdev_priv(wd));
334 }
335
cfg_to_ndev(struct brcmf_cfg80211_priv * cfg)336 static inline struct net_device *cfg_to_ndev(struct brcmf_cfg80211_priv *cfg)
337 {
338 return cfg->wdev->netdev;
339 }
340
ndev_to_cfg(struct net_device * ndev)341 static inline struct brcmf_cfg80211_priv *ndev_to_cfg(struct net_device *ndev)
342 {
343 return wdev_to_cfg(ndev->ieee80211_ptr);
344 }
345
346 #define iscan_to_cfg(i) ((struct brcmf_cfg80211_priv *)(i->data))
347 #define cfg_to_iscan(w) (w->iscan)
348
349 static inline struct
cfg_to_conn(struct brcmf_cfg80211_priv * cfg)350 brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_priv *cfg)
351 {
352 return &cfg->conn_info;
353 }
354
355 extern struct brcmf_cfg80211_dev *brcmf_cfg80211_attach(struct net_device *ndev,
356 struct device *busdev,
357 void *data);
358 extern void brcmf_cfg80211_detach(struct brcmf_cfg80211_dev *cfg);
359
360 /* event handler from dongle */
361 extern void brcmf_cfg80211_event(struct net_device *ndev,
362 const struct brcmf_event_msg *e, void *data);
363 extern s32 brcmf_cfg80211_up(struct brcmf_cfg80211_dev *cfg_dev);
364 extern s32 brcmf_cfg80211_down(struct brcmf_cfg80211_dev *cfg_dev);
365
366 #endif /* _wl_cfg80211_h_ */
367