brcmfmac: extend brcmf_term_iscan() to abort e-scan
[deliverable/linux.git] / drivers / net / wireless / brcm80211 / brcmfmac / wl_cfg80211.h
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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
20struct brcmf_cfg80211_conf;
21struct brcmf_cfg80211_iface;
22struct brcmf_cfg80211_priv;
23struct brcmf_cfg80211_security;
24struct 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
02f77195 35#define WL_ERR(fmt, ...) \
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36do { \
37 if (brcmf_dbg_level & WL_DBG_ERR) { \
38 if (net_ratelimit()) { \
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39 pr_err("ERROR @%s : " fmt, \
40 __func__, ##__VA_ARGS__); \
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41 } \
42 } \
43} while (0)
44
8ae74654 45#if (defined DEBUG)
02f77195 46#define WL_INFO(fmt, ...) \
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47do { \
48 if (brcmf_dbg_level & WL_DBG_INFO) { \
49 if (net_ratelimit()) { \
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50 pr_err("INFO @%s : " fmt, \
51 __func__, ##__VA_ARGS__); \
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52 } \
53 } \
54} while (0)
55
02f77195 56#define WL_TRACE(fmt, ...) \
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57do { \
58 if (brcmf_dbg_level & WL_DBG_TRACE) { \
59 if (net_ratelimit()) { \
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60 pr_err("TRACE @%s : " fmt, \
61 __func__, ##__VA_ARGS__); \
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62 } \
63 } \
64} while (0)
65
02f77195 66#define WL_SCAN(fmt, ...) \
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67do { \
68 if (brcmf_dbg_level & WL_DBG_SCAN) { \
69 if (net_ratelimit()) { \
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70 pr_err("SCAN @%s : " fmt, \
71 __func__, ##__VA_ARGS__); \
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72 } \
73 } \
74} while (0)
75
02f77195 76#define WL_CONN(fmt, ...) \
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77do { \
78 if (brcmf_dbg_level & WL_DBG_CONN) { \
79 if (net_ratelimit()) { \
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80 pr_err("CONN @%s : " fmt, \
81 __func__, ##__VA_ARGS__); \
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82 } \
83 } \
84} while (0)
85
8ae74654 86#else /* (defined DEBUG) */
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87#define WL_INFO(fmt, args...)
88#define WL_TRACE(fmt, args...)
89#define WL_SCAN(fmt, args...)
90#define WL_CONN(fmt, args...)
8ae74654 91#endif /* (defined DEBUG) */
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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
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126#define WL_ESCAN_BUF_SIZE (1024 * 64)
127#define WL_ESCAN_TIMER_INTERVAL_MS 8000 /* E-Scan timeout */
128
129#define WL_ESCAN_ACTION_START 1
130#define WL_ESCAN_ACTION_CONTINUE 2
131#define WL_ESCAN_ACTION_ABORT 3
132
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133/* dongle status */
134enum wl_status {
135 WL_STATUS_READY,
136 WL_STATUS_SCANNING,
137 WL_STATUS_SCAN_ABORTING,
138 WL_STATUS_CONNECTING,
139 WL_STATUS_CONNECTED
140};
141
142/* wi-fi mode */
143enum wl_mode {
144 WL_MODE_BSS,
145 WL_MODE_IBSS,
146 WL_MODE_AP
147};
148
149/* dongle profile list */
150enum wl_prof_list {
151 WL_PROF_MODE,
152 WL_PROF_SSID,
153 WL_PROF_SEC,
154 WL_PROF_IBSS,
155 WL_PROF_BAND,
156 WL_PROF_BSSID,
157 WL_PROF_ACT,
158 WL_PROF_BEACONINT,
159 WL_PROF_DTIMPERIOD
160};
161
162/* dongle iscan state */
163enum wl_iscan_state {
164 WL_ISCAN_STATE_IDLE,
165 WL_ISCAN_STATE_SCANING
166};
167
168/* dongle configuration */
169struct brcmf_cfg80211_conf {
170 u32 mode; /* adhoc , infrastructure or ap */
171 u32 frag_threshold;
172 u32 rts_threshold;
173 u32 retry_short;
174 u32 retry_long;
175 s32 tx_power;
176 struct ieee80211_channel channel;
177};
178
179/* cfg80211 main event loop */
180struct brcmf_cfg80211_event_loop {
181 s32(*handler[BRCMF_E_LAST]) (struct brcmf_cfg80211_priv *cfg_priv,
182 struct net_device *ndev,
183 const struct brcmf_event_msg *e,
184 void *data);
185};
186
187/* representing interface of cfg80211 plane */
188struct brcmf_cfg80211_iface {
189 struct brcmf_cfg80211_priv *cfg_priv;
190};
191
192struct brcmf_cfg80211_dev {
193 void *driver_data; /* to store cfg80211 object information */
194};
195
196/* basic structure of scan request */
197struct brcmf_cfg80211_scan_req {
198 struct brcmf_ssid_le ssid_le;
199};
200
201/* basic structure of information element */
202struct brcmf_cfg80211_ie {
203 u16 offset;
204 u8 buf[WL_TLV_INFO_MAX];
205};
206
207/* event queue for cfg80211 main event */
208struct brcmf_cfg80211_event_q {
209 struct list_head evt_q_list;
210 u32 etype;
211 struct brcmf_event_msg emsg;
212 s8 edata[1];
213};
214
215/* security information with currently associated ap */
216struct brcmf_cfg80211_security {
217 u32 wpa_versions;
218 u32 auth_type;
219 u32 cipher_pairwise;
220 u32 cipher_group;
221 u32 wpa_auth;
222};
223
224/* ibss information for currently joined ibss network */
225struct brcmf_cfg80211_ibss {
226 u8 beacon_interval; /* in millisecond */
227 u8 atim; /* in millisecond */
228 s8 join_only;
229 u8 band;
230 u8 channel;
231};
232
233/* dongle profile */
234struct brcmf_cfg80211_profile {
235 u32 mode;
236 struct brcmf_ssid ssid;
237 u8 bssid[ETH_ALEN];
238 u16 beacon_interval;
239 u8 dtim_period;
240 struct brcmf_cfg80211_security sec;
241 struct brcmf_cfg80211_ibss ibss;
242 s32 band;
243};
244
245/* dongle iscan event loop */
246struct brcmf_cfg80211_iscan_eloop {
247 s32 (*handler[WL_SCAN_ERSULTS_LAST])
248 (struct brcmf_cfg80211_priv *cfg_priv);
249};
250
251/* dongle iscan controller */
252struct brcmf_cfg80211_iscan_ctrl {
253 struct net_device *ndev;
254 struct timer_list timer;
255 u32 timer_ms;
256 u32 timer_on;
257 s32 state;
258 struct work_struct work;
259 struct brcmf_cfg80211_iscan_eloop el;
260 void *data;
261 s8 dcmd_buf[BRCMF_DCMD_SMLEN];
262 s8 scan_buf[WL_ISCAN_BUF_MAX];
263};
264
265/* association inform */
266struct brcmf_cfg80211_connect_info {
267 u8 *req_ie;
268 s32 req_ie_len;
269 u8 *resp_ie;
270 s32 resp_ie_len;
271};
272
273/* assoc ie length */
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274struct brcmf_cfg80211_assoc_ielen_le {
275 __le32 req_len;
276 __le32 resp_len;
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277};
278
279/* wpa2 pmk list */
280struct brcmf_cfg80211_pmk_list {
281 struct pmkid_list pmkids;
282 struct pmkid foo[MAXPMKID - 1];
283};
284
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285/* dongle escan state */
286enum wl_escan_state {
287 WL_ESCAN_STATE_IDLE,
288 WL_ESCAN_STATE_SCANNING
289};
290
291struct escan_info {
292 u32 escan_state;
293 u8 escan_buf[WL_ESCAN_BUF_SIZE];
294 struct wiphy *wiphy;
295 struct net_device *ndev;
296};
297
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298/* dongle private data of cfg80211 interface */
299struct brcmf_cfg80211_priv {
300 struct wireless_dev *wdev; /* representing wl cfg80211 device */
301 struct brcmf_cfg80211_conf *conf; /* dongle configuration */
302 struct cfg80211_scan_request *scan_request; /* scan request
303 object */
304 struct brcmf_cfg80211_event_loop el; /* main event loop */
305 struct list_head evt_q_list; /* used for event queue */
306 spinlock_t evt_q_lock; /* for event queue synchronization */
307 struct mutex usr_sync; /* maily for dongle up/down synchronization */
308 struct brcmf_scan_results *bss_list; /* bss_list holding scanned
309 ap information */
310 struct brcmf_scan_results *scan_results;
311 struct brcmf_cfg80211_scan_req *scan_req_int; /* scan request object
312 for internal purpose */
313 struct wl_cfg80211_bss_info *bss_info; /* bss information for
314 cfg80211 layer */
315 struct brcmf_cfg80211_ie ie; /* information element object for
316 internal purpose */
317 struct brcmf_cfg80211_profile *profile; /* holding dongle profile */
318 struct brcmf_cfg80211_iscan_ctrl *iscan; /* iscan controller */
319 struct brcmf_cfg80211_connect_info conn_info; /* association info */
320 struct brcmf_cfg80211_pmk_list *pmk_list; /* wpa2 pmk list */
321 struct work_struct event_work; /* event handler work struct */
322 unsigned long status; /* current dongle status */
323 void *pub;
324 u32 channel; /* current channel */
325 bool iscan_on; /* iscan on/off switch */
326 bool iscan_kickstart; /* indicate iscan already started */
327 bool active_scan; /* current scan mode */
328 bool ibss_starter; /* indicates this sta is ibss starter */
329 bool link_up; /* link/connection up flag */
330 bool pwr_save; /* indicate whether dongle to support
331 power save mode */
332 bool dongle_up; /* indicate whether dongle up or not */
333 bool roam_on; /* on/off switch for dongle self-roaming */
334 bool scan_tried; /* indicates if first scan attempted */
335 u8 *dcmd_buf; /* dcmd buffer */
336 u8 *extra_buf; /* maily to grab assoc information */
337 struct dentry *debugfsdir;
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338 bool escan_on; /* escan on/off switch */
339 struct escan_info escan_info; /* escan information */
340 struct timer_list escan_timeout; /* Timer for catch scan timeout */
341 struct work_struct escan_timeout_work; /* scan timeout worker */
342 u8 *escan_ioctl_buf;
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343 u8 ci[0] __aligned(NETDEV_ALIGN);
344};
345
346static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_priv *w)
347{
348 return w->wdev->wiphy;
349}
350
351static inline struct brcmf_cfg80211_priv *wiphy_to_cfg(struct wiphy *w)
352{
353 return (struct brcmf_cfg80211_priv *)(wiphy_priv(w));
354}
355
356static inline struct brcmf_cfg80211_priv *wdev_to_cfg(struct wireless_dev *wd)
357{
358 return (struct brcmf_cfg80211_priv *)(wdev_priv(wd));
359}
360
361static inline struct net_device *cfg_to_ndev(struct brcmf_cfg80211_priv *cfg)
362{
363 return cfg->wdev->netdev;
364}
365
366static inline struct brcmf_cfg80211_priv *ndev_to_cfg(struct net_device *ndev)
367{
368 return wdev_to_cfg(ndev->ieee80211_ptr);
369}
370
371#define iscan_to_cfg(i) ((struct brcmf_cfg80211_priv *)(i->data))
372#define cfg_to_iscan(w) (w->iscan)
373
374static inline struct
375brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_priv *cfg)
376{
377 return &cfg->conn_info;
378}
379
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380extern struct brcmf_cfg80211_dev *brcmf_cfg80211_attach(struct net_device *ndev,
381 struct device *busdev,
382 void *data);
383extern void brcmf_cfg80211_detach(struct brcmf_cfg80211_dev *cfg);
384
385/* event handler from dongle */
386extern void brcmf_cfg80211_event(struct net_device *ndev,
387 const struct brcmf_event_msg *e, void *data);
388extern s32 brcmf_cfg80211_up(struct brcmf_cfg80211_dev *cfg_dev);
389extern s32 brcmf_cfg80211_down(struct brcmf_cfg80211_dev *cfg_dev);
390
391#endif /* _wl_cfg80211_h_ */
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