Commit | Line | Data |
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9f440b7b AS |
1 | /* |
2 | * Copyright (c) 2012 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 | #include <linux/slab.h> | |
17 | #include <linux/netdevice.h> | |
27f10e38 | 18 | #include <linux/etherdevice.h> |
9f440b7b AS |
19 | #include <net/cfg80211.h> |
20 | ||
21 | #include <brcmu_wifi.h> | |
22 | #include <brcmu_utils.h> | |
23 | #include <defs.h> | |
24 | #include <dhd.h> | |
25 | #include <dhd_dbg.h> | |
26 | #include "fwil.h" | |
d3c0b633 | 27 | #include "fwil_types.h" |
9f440b7b AS |
28 | #include "p2p.h" |
29 | #include "wl_cfg80211.h" | |
30 | ||
31 | /* parameters used for p2p escan */ | |
32 | #define P2PAPI_SCAN_NPROBES 1 | |
33 | #define P2PAPI_SCAN_DWELL_TIME_MS 80 | |
34 | #define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40 | |
35 | #define P2PAPI_SCAN_HOME_TIME_MS 60 | |
36 | #define P2PAPI_SCAN_NPROBS_TIME_MS 30 | |
37 | #define P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS 100 | |
38 | #define WL_SCAN_CONNECT_DWELL_TIME_MS 200 | |
39 | #define WL_SCAN_JOIN_PROBE_INTERVAL_MS 20 | |
40 | ||
41 | #define BRCMF_P2P_WILDCARD_SSID "DIRECT-" | |
42 | #define BRCMF_P2P_WILDCARD_SSID_LEN (sizeof(BRCMF_P2P_WILDCARD_SSID) - 1) | |
43 | ||
44 | #define SOCIAL_CHAN_1 1 | |
45 | #define SOCIAL_CHAN_2 6 | |
46 | #define SOCIAL_CHAN_3 11 | |
6eda4e2c HM |
47 | #define IS_P2P_SOCIAL_CHANNEL(channel) ((channel == SOCIAL_CHAN_1) || \ |
48 | (channel == SOCIAL_CHAN_2) || \ | |
49 | (channel == SOCIAL_CHAN_3)) | |
9f440b7b AS |
50 | #define SOCIAL_CHAN_CNT 3 |
51 | #define AF_PEER_SEARCH_CNT 2 | |
52 | ||
d3c0b633 AS |
53 | #define BRCMF_SCB_TIMEOUT_VALUE 20 |
54 | ||
e6da3400 HM |
55 | #define P2P_VER 9 /* P2P version: 9=WiFi P2P v1.0 */ |
56 | #define P2P_PUB_AF_CATEGORY 0x04 | |
57 | #define P2P_PUB_AF_ACTION 0x09 | |
58 | #define P2P_AF_CATEGORY 0x7f | |
59 | #define P2P_OUI "\x50\x6F\x9A" /* P2P OUI */ | |
60 | #define P2P_OUI_LEN 3 /* P2P OUI length */ | |
61 | ||
18e2f61d HM |
62 | /* Action Frame Constants */ |
63 | #define DOT11_ACTION_HDR_LEN 2 /* action frame category + action */ | |
64 | #define DOT11_ACTION_CAT_OFF 0 /* category offset */ | |
65 | #define DOT11_ACTION_ACT_OFF 1 /* action offset */ | |
66 | ||
67 | #define P2P_AF_DWELL_TIME 200 | |
68 | #define P2P_AF_MIN_DWELL_TIME 100 | |
69 | #define P2P_AF_MED_DWELL_TIME 400 | |
70 | #define P2P_AF_LONG_DWELL_TIME 1000 | |
6eda4e2c | 71 | #define P2P_AF_TX_MAX_RETRY 1 |
18e2f61d HM |
72 | #define P2P_AF_MAX_WAIT_TIME 2000 |
73 | #define P2P_INVALID_CHANNEL -1 | |
74 | #define P2P_CHANNEL_SYNC_RETRY 5 | |
75 | #define P2P_AF_FRM_SCAN_MAX_WAIT 1500 | |
6eda4e2c | 76 | #define P2P_DEFAULT_SLEEP_TIME_VSDB 200 |
18e2f61d | 77 | |
e6da3400 HM |
78 | /* WiFi P2P Public Action Frame OUI Subtypes */ |
79 | #define P2P_PAF_GON_REQ 0 /* Group Owner Negotiation Req */ | |
80 | #define P2P_PAF_GON_RSP 1 /* Group Owner Negotiation Rsp */ | |
81 | #define P2P_PAF_GON_CONF 2 /* Group Owner Negotiation Confirm */ | |
82 | #define P2P_PAF_INVITE_REQ 3 /* P2P Invitation Request */ | |
83 | #define P2P_PAF_INVITE_RSP 4 /* P2P Invitation Response */ | |
84 | #define P2P_PAF_DEVDIS_REQ 5 /* Device Discoverability Request */ | |
85 | #define P2P_PAF_DEVDIS_RSP 6 /* Device Discoverability Response */ | |
86 | #define P2P_PAF_PROVDIS_REQ 7 /* Provision Discovery Request */ | |
87 | #define P2P_PAF_PROVDIS_RSP 8 /* Provision Discovery Response */ | |
88 | #define P2P_PAF_SUBTYPE_INVALID 255 /* Invalid Subtype */ | |
89 | ||
90 | /* WiFi P2P Action Frame OUI Subtypes */ | |
91 | #define P2P_AF_NOTICE_OF_ABSENCE 0 /* Notice of Absence */ | |
92 | #define P2P_AF_PRESENCE_REQ 1 /* P2P Presence Request */ | |
93 | #define P2P_AF_PRESENCE_RSP 2 /* P2P Presence Response */ | |
94 | #define P2P_AF_GO_DISC_REQ 3 /* GO Discoverability Request */ | |
95 | ||
96 | /* P2P Service Discovery related */ | |
97 | #define P2PSD_ACTION_CATEGORY 0x04 /* Public action frame */ | |
98 | #define P2PSD_ACTION_ID_GAS_IREQ 0x0a /* GAS Initial Request AF */ | |
99 | #define P2PSD_ACTION_ID_GAS_IRESP 0x0b /* GAS Initial Response AF */ | |
100 | #define P2PSD_ACTION_ID_GAS_CREQ 0x0c /* GAS Comback Request AF */ | |
101 | #define P2PSD_ACTION_ID_GAS_CRESP 0x0d /* GAS Comback Response AF */ | |
102 | ||
9f440b7b AS |
103 | /** |
104 | * struct brcmf_p2p_disc_st_le - set discovery state in firmware. | |
105 | * | |
106 | * @state: requested discovery state (see enum brcmf_p2p_disc_state). | |
107 | * @chspec: channel parameter for %WL_P2P_DISC_ST_LISTEN state. | |
108 | * @dwell: dwell time in ms for %WL_P2P_DISC_ST_LISTEN state. | |
109 | */ | |
110 | struct brcmf_p2p_disc_st_le { | |
111 | u8 state; | |
112 | __le16 chspec; | |
113 | __le16 dwell; | |
114 | }; | |
115 | ||
116 | /** | |
117 | * enum brcmf_p2p_disc_state - P2P discovery state values | |
118 | * | |
119 | * @WL_P2P_DISC_ST_SCAN: P2P discovery with wildcard SSID and P2P IE. | |
120 | * @WL_P2P_DISC_ST_LISTEN: P2P discovery off-channel for specified time. | |
121 | * @WL_P2P_DISC_ST_SEARCH: P2P discovery with P2P wildcard SSID and P2P IE. | |
122 | */ | |
123 | enum brcmf_p2p_disc_state { | |
124 | WL_P2P_DISC_ST_SCAN, | |
125 | WL_P2P_DISC_ST_LISTEN, | |
126 | WL_P2P_DISC_ST_SEARCH | |
127 | }; | |
128 | ||
129 | /** | |
130 | * struct brcmf_p2p_scan_le - P2P specific scan request. | |
131 | * | |
132 | * @type: type of scan method requested (values: 'E' or 'S'). | |
133 | * @reserved: reserved (ignored). | |
134 | * @eparams: parameters used for type 'E'. | |
135 | * @sparams: parameters used for type 'S'. | |
136 | */ | |
137 | struct brcmf_p2p_scan_le { | |
138 | u8 type; | |
139 | u8 reserved[3]; | |
140 | union { | |
141 | struct brcmf_escan_params_le eparams; | |
142 | struct brcmf_scan_params_le sparams; | |
143 | }; | |
144 | }; | |
145 | ||
e6da3400 HM |
146 | /** |
147 | * struct brcmf_p2p_pub_act_frame - WiFi P2P Public Action Frame | |
148 | * | |
149 | * @category: P2P_PUB_AF_CATEGORY | |
150 | * @action: P2P_PUB_AF_ACTION | |
151 | * @oui[3]: P2P_OUI | |
152 | * @oui_type: OUI type - P2P_VER | |
153 | * @subtype: OUI subtype - P2P_TYPE_* | |
154 | * @dialog_token: nonzero, identifies req/rsp transaction | |
155 | * @elts[1]: Variable length information elements. | |
156 | */ | |
157 | struct brcmf_p2p_pub_act_frame { | |
158 | u8 category; | |
159 | u8 action; | |
160 | u8 oui[3]; | |
161 | u8 oui_type; | |
162 | u8 subtype; | |
163 | u8 dialog_token; | |
164 | u8 elts[1]; | |
165 | }; | |
166 | ||
167 | /** | |
168 | * struct brcmf_p2p_action_frame - WiFi P2P Action Frame | |
169 | * | |
170 | * @category: P2P_AF_CATEGORY | |
171 | * @OUI[3]: OUI - P2P_OUI | |
172 | * @type: OUI Type - P2P_VER | |
173 | * @subtype: OUI Subtype - P2P_AF_* | |
174 | * @dialog_token: nonzero, identifies req/resp tranaction | |
175 | * @elts[1]: Variable length information elements. | |
176 | */ | |
177 | struct brcmf_p2p_action_frame { | |
178 | u8 category; | |
179 | u8 oui[3]; | |
180 | u8 type; | |
181 | u8 subtype; | |
182 | u8 dialog_token; | |
183 | u8 elts[1]; | |
184 | }; | |
185 | ||
186 | /** | |
187 | * struct brcmf_p2psd_gas_pub_act_frame - Wi-Fi GAS Public Action Frame | |
188 | * | |
189 | * @category: 0x04 Public Action Frame | |
190 | * @action: 0x6c Advertisement Protocol | |
191 | * @dialog_token: nonzero, identifies req/rsp transaction | |
192 | * @query_data[1]: Query Data. SD gas ireq SD gas iresp | |
193 | */ | |
194 | struct brcmf_p2psd_gas_pub_act_frame { | |
195 | u8 category; | |
196 | u8 action; | |
197 | u8 dialog_token; | |
198 | u8 query_data[1]; | |
199 | }; | |
200 | ||
18e2f61d HM |
201 | /** |
202 | * struct brcmf_config_af_params - Action Frame Parameters for tx. | |
203 | * | |
18e2f61d HM |
204 | * @mpc_onoff: To make sure to send successfully action frame, we have to |
205 | * turn off mpc 0: off, 1: on, (-1): do nothing | |
6eda4e2c HM |
206 | * @search_channel: 1: search peer's channel to send af |
207 | * extra_listen: keep the dwell time to get af response frame. | |
18e2f61d HM |
208 | */ |
209 | struct brcmf_config_af_params { | |
18e2f61d | 210 | s32 mpc_onoff; |
6eda4e2c HM |
211 | bool search_channel; |
212 | bool extra_listen; | |
18e2f61d | 213 | }; |
e6da3400 HM |
214 | |
215 | /** | |
216 | * brcmf_p2p_is_pub_action() - true if p2p public type frame. | |
217 | * | |
218 | * @frame: action frame data. | |
219 | * @frame_len: length of action frame data. | |
220 | * | |
221 | * Determine if action frame is p2p public action type | |
222 | */ | |
223 | static bool brcmf_p2p_is_pub_action(void *frame, u32 frame_len) | |
224 | { | |
225 | struct brcmf_p2p_pub_act_frame *pact_frm; | |
226 | ||
227 | if (frame == NULL) | |
228 | return false; | |
229 | ||
230 | pact_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
231 | if (frame_len < sizeof(struct brcmf_p2p_pub_act_frame) - 1) | |
232 | return false; | |
233 | ||
234 | if (pact_frm->category == P2P_PUB_AF_CATEGORY && | |
235 | pact_frm->action == P2P_PUB_AF_ACTION && | |
236 | pact_frm->oui_type == P2P_VER && | |
237 | memcmp(pact_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0) | |
238 | return true; | |
239 | ||
240 | return false; | |
241 | } | |
242 | ||
243 | /** | |
244 | * brcmf_p2p_is_p2p_action() - true if p2p action type frame. | |
245 | * | |
246 | * @frame: action frame data. | |
247 | * @frame_len: length of action frame data. | |
248 | * | |
249 | * Determine if action frame is p2p action type | |
250 | */ | |
251 | static bool brcmf_p2p_is_p2p_action(void *frame, u32 frame_len) | |
252 | { | |
253 | struct brcmf_p2p_action_frame *act_frm; | |
254 | ||
255 | if (frame == NULL) | |
256 | return false; | |
257 | ||
258 | act_frm = (struct brcmf_p2p_action_frame *)frame; | |
259 | if (frame_len < sizeof(struct brcmf_p2p_action_frame) - 1) | |
260 | return false; | |
261 | ||
262 | if (act_frm->category == P2P_AF_CATEGORY && | |
263 | act_frm->type == P2P_VER && | |
264 | memcmp(act_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0) | |
265 | return true; | |
266 | ||
267 | return false; | |
268 | } | |
269 | ||
270 | /** | |
271 | * brcmf_p2p_is_gas_action() - true if p2p gas action type frame. | |
272 | * | |
273 | * @frame: action frame data. | |
274 | * @frame_len: length of action frame data. | |
275 | * | |
276 | * Determine if action frame is p2p gas action type | |
277 | */ | |
278 | static bool brcmf_p2p_is_gas_action(void *frame, u32 frame_len) | |
279 | { | |
280 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
281 | ||
282 | if (frame == NULL) | |
283 | return false; | |
284 | ||
285 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
286 | if (frame_len < sizeof(struct brcmf_p2psd_gas_pub_act_frame) - 1) | |
287 | return false; | |
288 | ||
289 | if (sd_act_frm->category != P2PSD_ACTION_CATEGORY) | |
290 | return false; | |
291 | ||
292 | if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_IREQ || | |
293 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_IRESP || | |
294 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_CREQ || | |
295 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_CRESP) | |
296 | return true; | |
297 | ||
298 | return false; | |
299 | } | |
300 | ||
301 | /** | |
302 | * brcmf_p2p_print_actframe() - debug print routine. | |
303 | * | |
304 | * @tx: Received or to be transmitted | |
305 | * @frame: action frame data. | |
306 | * @frame_len: length of action frame data. | |
307 | * | |
308 | * Print information about the p2p action frame | |
309 | */ | |
0a4cf487 HM |
310 | |
311 | #ifdef DEBUG | |
312 | ||
e6da3400 HM |
313 | static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len) |
314 | { | |
315 | struct brcmf_p2p_pub_act_frame *pact_frm; | |
316 | struct brcmf_p2p_action_frame *act_frm; | |
317 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
318 | ||
319 | if (!frame || frame_len <= 2) | |
320 | return; | |
321 | ||
322 | if (brcmf_p2p_is_pub_action(frame, frame_len)) { | |
323 | pact_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
324 | switch (pact_frm->subtype) { | |
325 | case P2P_PAF_GON_REQ: | |
326 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Req Frame\n", | |
327 | (tx) ? "TX" : "RX"); | |
328 | break; | |
329 | case P2P_PAF_GON_RSP: | |
330 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Rsp Frame\n", | |
331 | (tx) ? "TX" : "RX"); | |
332 | break; | |
333 | case P2P_PAF_GON_CONF: | |
334 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Confirm Frame\n", | |
335 | (tx) ? "TX" : "RX"); | |
336 | break; | |
337 | case P2P_PAF_INVITE_REQ: | |
338 | brcmf_dbg(TRACE, "%s P2P Invitation Request Frame\n", | |
339 | (tx) ? "TX" : "RX"); | |
340 | break; | |
341 | case P2P_PAF_INVITE_RSP: | |
342 | brcmf_dbg(TRACE, "%s P2P Invitation Response Frame\n", | |
343 | (tx) ? "TX" : "RX"); | |
344 | break; | |
345 | case P2P_PAF_DEVDIS_REQ: | |
346 | brcmf_dbg(TRACE, "%s P2P Device Discoverability Request Frame\n", | |
347 | (tx) ? "TX" : "RX"); | |
348 | break; | |
349 | case P2P_PAF_DEVDIS_RSP: | |
350 | brcmf_dbg(TRACE, "%s P2P Device Discoverability Response Frame\n", | |
351 | (tx) ? "TX" : "RX"); | |
352 | break; | |
353 | case P2P_PAF_PROVDIS_REQ: | |
354 | brcmf_dbg(TRACE, "%s P2P Provision Discovery Request Frame\n", | |
355 | (tx) ? "TX" : "RX"); | |
356 | break; | |
357 | case P2P_PAF_PROVDIS_RSP: | |
358 | brcmf_dbg(TRACE, "%s P2P Provision Discovery Response Frame\n", | |
359 | (tx) ? "TX" : "RX"); | |
360 | break; | |
361 | default: | |
362 | brcmf_dbg(TRACE, "%s Unknown P2P Public Action Frame\n", | |
363 | (tx) ? "TX" : "RX"); | |
364 | break; | |
365 | } | |
366 | } else if (brcmf_p2p_is_p2p_action(frame, frame_len)) { | |
367 | act_frm = (struct brcmf_p2p_action_frame *)frame; | |
368 | switch (act_frm->subtype) { | |
369 | case P2P_AF_NOTICE_OF_ABSENCE: | |
370 | brcmf_dbg(TRACE, "%s P2P Notice of Absence Frame\n", | |
371 | (tx) ? "TX" : "RX"); | |
372 | break; | |
373 | case P2P_AF_PRESENCE_REQ: | |
374 | brcmf_dbg(TRACE, "%s P2P Presence Request Frame\n", | |
375 | (tx) ? "TX" : "RX"); | |
376 | break; | |
377 | case P2P_AF_PRESENCE_RSP: | |
378 | brcmf_dbg(TRACE, "%s P2P Presence Response Frame\n", | |
379 | (tx) ? "TX" : "RX"); | |
380 | break; | |
381 | case P2P_AF_GO_DISC_REQ: | |
382 | brcmf_dbg(TRACE, "%s P2P Discoverability Request Frame\n", | |
383 | (tx) ? "TX" : "RX"); | |
384 | break; | |
385 | default: | |
386 | brcmf_dbg(TRACE, "%s Unknown P2P Action Frame\n", | |
387 | (tx) ? "TX" : "RX"); | |
388 | } | |
389 | ||
390 | } else if (brcmf_p2p_is_gas_action(frame, frame_len)) { | |
391 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
392 | switch (sd_act_frm->action) { | |
393 | case P2PSD_ACTION_ID_GAS_IREQ: | |
394 | brcmf_dbg(TRACE, "%s P2P GAS Initial Request\n", | |
395 | (tx) ? "TX" : "RX"); | |
396 | break; | |
397 | case P2PSD_ACTION_ID_GAS_IRESP: | |
398 | brcmf_dbg(TRACE, "%s P2P GAS Initial Response\n", | |
399 | (tx) ? "TX" : "RX"); | |
400 | break; | |
401 | case P2PSD_ACTION_ID_GAS_CREQ: | |
402 | brcmf_dbg(TRACE, "%s P2P GAS Comback Request\n", | |
403 | (tx) ? "TX" : "RX"); | |
404 | break; | |
405 | case P2PSD_ACTION_ID_GAS_CRESP: | |
406 | brcmf_dbg(TRACE, "%s P2P GAS Comback Response\n", | |
407 | (tx) ? "TX" : "RX"); | |
408 | break; | |
409 | default: | |
410 | brcmf_dbg(TRACE, "%s Unknown P2P GAS Frame\n", | |
411 | (tx) ? "TX" : "RX"); | |
412 | break; | |
413 | } | |
414 | } | |
415 | } | |
416 | ||
0a4cf487 HM |
417 | #else |
418 | ||
419 | static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len) | |
420 | { | |
421 | } | |
422 | ||
423 | #endif | |
424 | ||
6eda4e2c HM |
425 | |
426 | /** | |
427 | * brcmf_p2p_chnr_to_chspec() - convert channel number to chanspec. | |
428 | * | |
429 | * @channel: channel number | |
430 | */ | |
431 | static u16 brcmf_p2p_chnr_to_chspec(u16 channel) | |
432 | { | |
433 | u16 chanspec; | |
434 | ||
435 | chanspec = channel & WL_CHANSPEC_CHAN_MASK; | |
436 | ||
437 | if (channel <= CH_MAX_2G_CHANNEL) | |
438 | chanspec |= WL_CHANSPEC_BAND_2G; | |
439 | else | |
440 | chanspec |= WL_CHANSPEC_BAND_5G; | |
441 | ||
442 | chanspec |= WL_CHANSPEC_BW_20; | |
443 | chanspec |= WL_CHANSPEC_CTL_SB_NONE; | |
444 | ||
445 | return chanspec; | |
446 | } | |
447 | ||
448 | ||
9f440b7b AS |
449 | /** |
450 | * brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation. | |
451 | * | |
2fde59d9 HM |
452 | * @ifp: ifp to use for iovars (primary). |
453 | * @p2p_mac: mac address to configure for p2p_da_override | |
9f440b7b | 454 | */ |
2fde59d9 | 455 | static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac) |
9f440b7b | 456 | { |
9f440b7b AS |
457 | s32 ret = 0; |
458 | ||
27f10e38 | 459 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); |
2fde59d9 | 460 | brcmf_fil_iovar_int_set(ifp, "apsta", 1); |
27f10e38 | 461 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); |
9f440b7b AS |
462 | |
463 | /* In case of COB type, firmware has default mac address | |
464 | * After Initializing firmware, we have to set current mac address to | |
465 | * firmware for P2P device address | |
466 | */ | |
2fde59d9 HM |
467 | ret = brcmf_fil_iovar_data_set(ifp, "p2p_da_override", p2p_mac, |
468 | ETH_ALEN); | |
9f440b7b AS |
469 | if (ret) |
470 | brcmf_err("failed to update device address ret %d\n", ret); | |
471 | ||
472 | return ret; | |
473 | } | |
474 | ||
475 | /** | |
476 | * brcmf_p2p_generate_bss_mac() - derive mac addresses for P2P. | |
477 | * | |
478 | * @p2p: P2P specific data. | |
27f10e38 | 479 | * @dev_addr: optional device address. |
9f440b7b | 480 | * |
27f10e38 AS |
481 | * P2P needs mac addresses for P2P device and interface. If no device |
482 | * address it specified, these are derived from the primary net device, ie. | |
483 | * the permanent ethernet address of the device. | |
9f440b7b | 484 | */ |
27f10e38 | 485 | static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr) |
9f440b7b | 486 | { |
2fde59d9 | 487 | struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
27f10e38 AS |
488 | bool local_admin = false; |
489 | ||
490 | if (!dev_addr || is_zero_ether_addr(dev_addr)) { | |
491 | dev_addr = pri_ifp->mac_addr; | |
492 | local_admin = true; | |
493 | } | |
2fde59d9 | 494 | |
9f440b7b AS |
495 | /* Generate the P2P Device Address. This consists of the device's |
496 | * primary MAC address with the locally administered bit set. | |
497 | */ | |
27f10e38 AS |
498 | memcpy(p2p->dev_addr, dev_addr, ETH_ALEN); |
499 | if (local_admin) | |
500 | p2p->dev_addr[0] |= 0x02; | |
9f440b7b AS |
501 | |
502 | /* Generate the P2P Interface Address. If the discovery and connection | |
503 | * BSSCFGs need to simultaneously co-exist, then this address must be | |
504 | * different from the P2P Device Address, but also locally administered. | |
505 | */ | |
506 | memcpy(p2p->int_addr, p2p->dev_addr, ETH_ALEN); | |
27f10e38 | 507 | p2p->int_addr[0] |= 0x02; |
9f440b7b AS |
508 | p2p->int_addr[4] ^= 0x80; |
509 | } | |
510 | ||
511 | /** | |
512 | * brcmf_p2p_scan_is_p2p_request() - is cfg80211 scan request a P2P scan. | |
513 | * | |
514 | * @request: the scan request as received from cfg80211. | |
515 | * | |
516 | * returns true if one of the ssids in the request matches the | |
517 | * P2P wildcard ssid; otherwise returns false. | |
518 | */ | |
519 | static bool brcmf_p2p_scan_is_p2p_request(struct cfg80211_scan_request *request) | |
520 | { | |
521 | struct cfg80211_ssid *ssids = request->ssids; | |
522 | int i; | |
523 | ||
524 | for (i = 0; i < request->n_ssids; i++) { | |
525 | if (ssids[i].ssid_len != BRCMF_P2P_WILDCARD_SSID_LEN) | |
526 | continue; | |
527 | ||
528 | brcmf_dbg(INFO, "comparing ssid \"%s\"", ssids[i].ssid); | |
529 | if (!memcmp(BRCMF_P2P_WILDCARD_SSID, ssids[i].ssid, | |
530 | BRCMF_P2P_WILDCARD_SSID_LEN)) | |
531 | return true; | |
532 | } | |
533 | return false; | |
534 | } | |
535 | ||
536 | /** | |
537 | * brcmf_p2p_set_discover_state - set discover state in firmware. | |
538 | * | |
539 | * @ifp: low-level interface object. | |
540 | * @state: discover state to set. | |
541 | * @chanspec: channel parameters (for state @WL_P2P_DISC_ST_LISTEN only). | |
542 | * @listen_ms: duration to listen (for state @WL_P2P_DISC_ST_LISTEN only). | |
543 | */ | |
544 | static s32 brcmf_p2p_set_discover_state(struct brcmf_if *ifp, u8 state, | |
545 | u16 chanspec, u16 listen_ms) | |
546 | { | |
547 | struct brcmf_p2p_disc_st_le discover_state; | |
548 | s32 ret = 0; | |
549 | brcmf_dbg(TRACE, "enter\n"); | |
550 | ||
551 | discover_state.state = state; | |
552 | discover_state.chspec = cpu_to_le16(chanspec); | |
553 | discover_state.dwell = cpu_to_le16(listen_ms); | |
554 | ret = brcmf_fil_bsscfg_data_set(ifp, "p2p_state", &discover_state, | |
555 | sizeof(discover_state)); | |
556 | return ret; | |
557 | } | |
558 | ||
9f440b7b AS |
559 | /** |
560 | * brcmf_p2p_deinit_discovery() - disable P2P device discovery. | |
561 | * | |
562 | * @p2p: P2P specific data. | |
563 | * | |
2fde59d9 | 564 | * Resets the discovery state and disables it in firmware. |
9f440b7b AS |
565 | */ |
566 | static s32 brcmf_p2p_deinit_discovery(struct brcmf_p2p_info *p2p) | |
567 | { | |
2fde59d9 | 568 | struct brcmf_cfg80211_vif *vif; |
9f440b7b | 569 | |
2fde59d9 | 570 | brcmf_dbg(TRACE, "enter\n"); |
9f440b7b AS |
571 | |
572 | /* Set the discovery state to SCAN */ | |
2fde59d9 HM |
573 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
574 | (void)brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
9f440b7b AS |
575 | |
576 | /* Disable P2P discovery in the firmware */ | |
2fde59d9 HM |
577 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; |
578 | (void)brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 0); | |
9f440b7b AS |
579 | |
580 | return 0; | |
581 | } | |
582 | ||
583 | /** | |
584 | * brcmf_p2p_enable_discovery() - initialize and configure discovery. | |
585 | * | |
586 | * @p2p: P2P specific data. | |
9f440b7b AS |
587 | * |
588 | * Initializes the discovery device and configure the virtual interface. | |
589 | */ | |
0de8aace | 590 | static int brcmf_p2p_enable_discovery(struct brcmf_p2p_info *p2p) |
9f440b7b AS |
591 | { |
592 | struct brcmf_cfg80211_vif *vif; | |
593 | s32 ret = 0; | |
594 | ||
595 | brcmf_dbg(TRACE, "enter\n"); | |
596 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
2fde59d9 HM |
597 | if (!vif) { |
598 | brcmf_err("P2P config device not available\n"); | |
599 | ret = -EPERM; | |
0de8aace | 600 | goto exit; |
9f440b7b AS |
601 | } |
602 | ||
2fde59d9 HM |
603 | if (test_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status)) { |
604 | brcmf_dbg(INFO, "P2P config device already configured\n"); | |
9f440b7b AS |
605 | goto exit; |
606 | } | |
607 | ||
2fde59d9 HM |
608 | /* Re-initialize P2P Discovery in the firmware */ |
609 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
610 | ret = brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 1); | |
611 | if (ret < 0) { | |
612 | brcmf_err("set p2p_disc error\n"); | |
613 | goto exit; | |
614 | } | |
9f440b7b | 615 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
2fde59d9 HM |
616 | ret = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); |
617 | if (ret < 0) { | |
618 | brcmf_err("unable to set WL_P2P_DISC_ST_SCAN\n"); | |
619 | goto exit; | |
620 | } | |
9f440b7b AS |
621 | |
622 | /* | |
623 | * Set wsec to any non-zero value in the discovery bsscfg | |
624 | * to ensure our P2P probe responses have the privacy bit | |
625 | * set in the 802.11 WPA IE. Some peer devices may not | |
626 | * initiate WPS with us if this bit is not set. | |
627 | */ | |
628 | ret = brcmf_fil_bsscfg_int_set(vif->ifp, "wsec", AES_ENABLED); | |
2fde59d9 | 629 | if (ret < 0) { |
9f440b7b | 630 | brcmf_err("wsec error %d\n", ret); |
2fde59d9 HM |
631 | goto exit; |
632 | } | |
9f440b7b | 633 | |
2fde59d9 | 634 | set_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status); |
9f440b7b AS |
635 | exit: |
636 | return ret; | |
637 | } | |
638 | ||
0de8aace | 639 | /** |
9f440b7b AS |
640 | * brcmf_p2p_escan() - initiate a P2P scan. |
641 | * | |
642 | * @p2p: P2P specific data. | |
643 | * @num_chans: number of channels to scan. | |
644 | * @chanspecs: channel parameters for @num_chans channels. | |
645 | * @search_state: P2P discover state to use. | |
646 | * @action: scan action to pass to firmware. | |
647 | * @bss_type: type of P2P bss. | |
648 | */ | |
649 | static s32 brcmf_p2p_escan(struct brcmf_p2p_info *p2p, u32 num_chans, | |
650 | u16 chanspecs[], s32 search_state, u16 action, | |
651 | enum p2p_bss_type bss_type) | |
652 | { | |
653 | s32 ret = 0; | |
654 | s32 memsize = offsetof(struct brcmf_p2p_scan_le, | |
655 | eparams.params_le.channel_list); | |
656 | s32 nprobes; | |
657 | s32 active; | |
658 | u32 i; | |
659 | u8 *memblk; | |
660 | struct brcmf_cfg80211_vif *vif; | |
661 | struct brcmf_p2p_scan_le *p2p_params; | |
662 | struct brcmf_scan_params_le *sparams; | |
663 | struct brcmf_ssid ssid; | |
664 | ||
9f440b7b AS |
665 | memsize += num_chans * sizeof(__le16); |
666 | memblk = kzalloc(memsize, GFP_KERNEL); | |
667 | if (!memblk) | |
668 | return -ENOMEM; | |
669 | ||
670 | vif = p2p->bss_idx[bss_type].vif; | |
671 | if (vif == NULL) { | |
672 | brcmf_err("no vif for bss type %d\n", bss_type); | |
673 | ret = -EINVAL; | |
674 | goto exit; | |
675 | } | |
676 | ||
677 | switch (search_state) { | |
678 | case WL_P2P_DISC_ST_SEARCH: | |
679 | /* | |
680 | * If we in SEARCH STATE, we don't need to set SSID explictly | |
681 | * because dongle use P2P WILDCARD internally by default | |
682 | */ | |
683 | /* use null ssid */ | |
684 | ssid.SSID_len = 0; | |
685 | memset(ssid.SSID, 0, sizeof(ssid.SSID)); | |
686 | break; | |
687 | case WL_P2P_DISC_ST_SCAN: | |
688 | /* | |
689 | * wpa_supplicant has p2p_find command with type social or | |
690 | * progressive. For progressive, we need to set the ssid to | |
691 | * P2P WILDCARD because we just do broadcast scan unless | |
692 | * setting SSID. | |
693 | */ | |
694 | ssid.SSID_len = BRCMF_P2P_WILDCARD_SSID_LEN; | |
695 | memcpy(ssid.SSID, BRCMF_P2P_WILDCARD_SSID, ssid.SSID_len); | |
696 | break; | |
697 | default: | |
698 | brcmf_err(" invalid search state %d\n", search_state); | |
699 | ret = -EINVAL; | |
700 | goto exit; | |
701 | } | |
702 | ||
703 | brcmf_p2p_set_discover_state(vif->ifp, search_state, 0, 0); | |
704 | ||
705 | /* | |
706 | * set p2p scan parameters. | |
707 | */ | |
708 | p2p_params = (struct brcmf_p2p_scan_le *)memblk; | |
709 | p2p_params->type = 'E'; | |
710 | ||
711 | /* determine the scan engine parameters */ | |
712 | sparams = &p2p_params->eparams.params_le; | |
713 | sparams->bss_type = DOT11_BSSTYPE_ANY; | |
714 | if (p2p->cfg->active_scan) | |
715 | sparams->scan_type = 0; | |
716 | else | |
717 | sparams->scan_type = 1; | |
718 | ||
719 | memset(&sparams->bssid, 0xFF, ETH_ALEN); | |
720 | if (ssid.SSID_len) | |
721 | memcpy(sparams->ssid_le.SSID, ssid.SSID, ssid.SSID_len); | |
722 | sparams->ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len); | |
723 | sparams->home_time = cpu_to_le32(P2PAPI_SCAN_HOME_TIME_MS); | |
724 | ||
725 | /* | |
726 | * SOCIAL_CHAN_CNT + 1 takes care of the Progressive scan | |
727 | * supported by the supplicant. | |
728 | */ | |
729 | if (num_chans == SOCIAL_CHAN_CNT || num_chans == (SOCIAL_CHAN_CNT + 1)) | |
730 | active = P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS; | |
731 | else if (num_chans == AF_PEER_SEARCH_CNT) | |
732 | active = P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS; | |
733 | else if (wl_get_vif_state_all(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED)) | |
734 | active = -1; | |
735 | else | |
736 | active = P2PAPI_SCAN_DWELL_TIME_MS; | |
737 | ||
738 | /* Override scan params to find a peer for a connection */ | |
739 | if (num_chans == 1) { | |
740 | active = WL_SCAN_CONNECT_DWELL_TIME_MS; | |
18e2f61d | 741 | /* WAR to sync with presence period of VSDB GO. |
9f440b7b AS |
742 | * send probe request more frequently |
743 | */ | |
744 | nprobes = active / WL_SCAN_JOIN_PROBE_INTERVAL_MS; | |
745 | } else { | |
746 | nprobes = active / P2PAPI_SCAN_NPROBS_TIME_MS; | |
747 | } | |
748 | ||
749 | if (nprobes <= 0) | |
750 | nprobes = 1; | |
751 | ||
752 | brcmf_dbg(INFO, "nprobes # %d, active_time %d\n", nprobes, active); | |
753 | sparams->active_time = cpu_to_le32(active); | |
754 | sparams->nprobes = cpu_to_le32(nprobes); | |
755 | sparams->passive_time = cpu_to_le32(-1); | |
756 | sparams->channel_num = cpu_to_le32(num_chans & | |
757 | BRCMF_SCAN_PARAMS_COUNT_MASK); | |
758 | for (i = 0; i < num_chans; i++) | |
759 | sparams->channel_list[i] = cpu_to_le16(chanspecs[i]); | |
760 | ||
761 | /* set the escan specific parameters */ | |
762 | p2p_params->eparams.version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION); | |
763 | p2p_params->eparams.action = cpu_to_le16(action); | |
764 | p2p_params->eparams.sync_id = cpu_to_le16(0x1234); | |
765 | /* perform p2p scan on primary device */ | |
766 | ret = brcmf_fil_bsscfg_data_set(vif->ifp, "p2p_scan", memblk, memsize); | |
767 | if (!ret) | |
768 | set_bit(BRCMF_SCAN_STATUS_BUSY, &p2p->cfg->scan_status); | |
769 | exit: | |
770 | kfree(memblk); | |
771 | return ret; | |
772 | } | |
773 | ||
774 | /** | |
775 | * brcmf_p2p_run_escan() - escan callback for peer-to-peer. | |
776 | * | |
777 | * @cfg: driver private data for cfg80211 interface. | |
778 | * @ndev: net device for which scan is requested. | |
779 | * @request: scan request from cfg80211. | |
780 | * @action: scan action. | |
781 | * | |
782 | * Determines the P2P discovery state based to scan request parameters and | |
783 | * validates the channels in the request. | |
784 | */ | |
785 | static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg, | |
a0f472ac | 786 | struct brcmf_if *ifp, |
9f440b7b AS |
787 | struct cfg80211_scan_request *request, |
788 | u16 action) | |
789 | { | |
790 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
791 | s32 err = 0; | |
792 | s32 search_state = WL_P2P_DISC_ST_SCAN; | |
793 | struct brcmf_cfg80211_vif *vif; | |
794 | struct net_device *dev = NULL; | |
795 | int i, num_nodfs = 0; | |
796 | u16 *chanspecs; | |
797 | ||
798 | brcmf_dbg(TRACE, "enter\n"); | |
799 | ||
800 | if (!request) { | |
801 | err = -EINVAL; | |
802 | goto exit; | |
803 | } | |
804 | ||
805 | if (request->n_channels) { | |
806 | chanspecs = kcalloc(request->n_channels, sizeof(*chanspecs), | |
807 | GFP_KERNEL); | |
808 | if (!chanspecs) { | |
809 | err = -ENOMEM; | |
810 | goto exit; | |
811 | } | |
812 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; | |
813 | if (vif) | |
814 | dev = vif->wdev.netdev; | |
815 | if (request->n_channels == 3 && | |
816 | request->channels[0]->hw_value == SOCIAL_CHAN_1 && | |
817 | request->channels[1]->hw_value == SOCIAL_CHAN_2 && | |
818 | request->channels[2]->hw_value == SOCIAL_CHAN_3) { | |
819 | /* SOCIAL CHANNELS 1, 6, 11 */ | |
820 | search_state = WL_P2P_DISC_ST_SEARCH; | |
821 | brcmf_dbg(INFO, "P2P SEARCH PHASE START\n"); | |
822 | } else if (dev != NULL && vif->mode == WL_MODE_AP) { | |
823 | /* If you are already a GO, then do SEARCH only */ | |
824 | brcmf_dbg(INFO, "Already a GO. Do SEARCH Only\n"); | |
825 | search_state = WL_P2P_DISC_ST_SEARCH; | |
826 | } else { | |
827 | brcmf_dbg(INFO, "P2P SCAN STATE START\n"); | |
828 | } | |
829 | ||
830 | /* | |
831 | * no P2P scanning on passive or DFS channels. | |
832 | */ | |
833 | for (i = 0; i < request->n_channels; i++) { | |
834 | struct ieee80211_channel *chan = request->channels[i]; | |
835 | ||
836 | if (chan->flags & (IEEE80211_CHAN_RADAR | | |
837 | IEEE80211_CHAN_PASSIVE_SCAN)) | |
838 | continue; | |
839 | ||
840 | chanspecs[i] = channel_to_chanspec(chan); | |
841 | brcmf_dbg(INFO, "%d: chan=%d, channel spec=%x\n", | |
842 | num_nodfs, chan->hw_value, chanspecs[i]); | |
843 | num_nodfs++; | |
844 | } | |
845 | err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state, | |
846 | action, P2PAPI_BSSCFG_DEVICE); | |
847 | } | |
848 | exit: | |
849 | if (err) | |
850 | brcmf_err("error (%d)\n", err); | |
851 | return err; | |
852 | } | |
853 | ||
6eda4e2c HM |
854 | |
855 | /** | |
856 | * brcmf_p2p_find_listen_channel() - find listen channel in ie string. | |
857 | * | |
858 | * @ie: string of information elements. | |
859 | * @ie_len: length of string. | |
860 | * | |
861 | * Scan ie for p2p ie and look for attribute 6 channel. If available determine | |
862 | * channel and return it. | |
863 | */ | |
864 | static s32 brcmf_p2p_find_listen_channel(const u8 *ie, u32 ie_len) | |
865 | { | |
866 | u8 channel_ie[5]; | |
867 | s32 listen_channel; | |
868 | s32 err; | |
869 | ||
870 | err = cfg80211_get_p2p_attr(ie, ie_len, | |
871 | IEEE80211_P2P_ATTR_LISTEN_CHANNEL, | |
872 | channel_ie, sizeof(channel_ie)); | |
873 | if (err < 0) | |
874 | return err; | |
875 | ||
876 | /* listen channel subel length format: */ | |
877 | /* 3(country) + 1(op. class) + 1(chan num) */ | |
878 | listen_channel = (s32)channel_ie[3 + 1]; | |
879 | ||
880 | if (listen_channel == SOCIAL_CHAN_1 || | |
881 | listen_channel == SOCIAL_CHAN_2 || | |
882 | listen_channel == SOCIAL_CHAN_3) { | |
883 | brcmf_dbg(INFO, "Found my Listen Channel %d\n", listen_channel); | |
884 | return listen_channel; | |
885 | } | |
886 | ||
887 | return -EPERM; | |
888 | } | |
889 | ||
890 | ||
9f440b7b AS |
891 | /** |
892 | * brcmf_p2p_scan_prep() - prepare scan based on request. | |
893 | * | |
894 | * @wiphy: wiphy device. | |
895 | * @request: scan request from cfg80211. | |
0f8ffe17 | 896 | * @vif: vif on which scan request is to be executed. |
9f440b7b AS |
897 | * |
898 | * Prepare the scan appropriately for type of scan requested. Overrides the | |
899 | * escan .run() callback for peer-to-peer scanning. | |
900 | */ | |
901 | int brcmf_p2p_scan_prep(struct wiphy *wiphy, | |
0f8ffe17 HM |
902 | struct cfg80211_scan_request *request, |
903 | struct brcmf_cfg80211_vif *vif) | |
9f440b7b AS |
904 | { |
905 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
906 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
907 | int err = 0; | |
908 | ||
909 | if (brcmf_p2p_scan_is_p2p_request(request)) { | |
910 | /* find my listen channel */ | |
6eda4e2c HM |
911 | err = brcmf_p2p_find_listen_channel(request->ie, |
912 | request->ie_len); | |
9f440b7b AS |
913 | if (err < 0) |
914 | return err; | |
915 | ||
6eda4e2c HM |
916 | p2p->afx_hdl.my_listen_chan = err; |
917 | ||
9f440b7b AS |
918 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
919 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
920 | ||
0de8aace | 921 | err = brcmf_p2p_enable_discovery(p2p); |
0f8ffe17 HM |
922 | if (err) |
923 | return err; | |
9f440b7b | 924 | |
0f8ffe17 | 925 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
9f440b7b | 926 | |
0f8ffe17 HM |
927 | /* override .run_escan() callback. */ |
928 | cfg->escan_info.run = brcmf_p2p_run_escan; | |
9f440b7b | 929 | } |
0f8ffe17 HM |
930 | err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBREQ_FLAG, |
931 | request->ie, request->ie_len); | |
9f440b7b AS |
932 | return err; |
933 | } | |
934 | ||
0de8aace | 935 | |
f2058dde HM |
936 | /** |
937 | * brcmf_p2p_discover_listen() - set firmware to discover listen state. | |
938 | * | |
939 | * @p2p: p2p device. | |
6eda4e2c HM |
940 | * @channel: channel nr for discover listen. |
941 | * @duration: time in ms to stay on channel. | |
f2058dde HM |
942 | * |
943 | */ | |
944 | static s32 | |
6eda4e2c | 945 | brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration) |
f2058dde HM |
946 | { |
947 | struct brcmf_cfg80211_vif *vif; | |
948 | s32 err = 0; | |
949 | u16 chanspec; | |
950 | ||
951 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
952 | if (!vif) { | |
953 | brcmf_err("Discovery is not set, so we have nothing to do\n"); | |
954 | err = -EPERM; | |
955 | goto exit; | |
956 | } | |
957 | ||
958 | if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status)) { | |
959 | brcmf_err("Previous LISTEN is not completed yet\n"); | |
960 | /* WAR: prevent cookie mismatch in wpa_supplicant return OK */ | |
961 | goto exit; | |
962 | } | |
963 | ||
6eda4e2c | 964 | chanspec = brcmf_p2p_chnr_to_chspec(channel); |
f2058dde HM |
965 | err = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_LISTEN, |
966 | chanspec, (u16)duration); | |
967 | if (!err) { | |
968 | set_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status); | |
969 | p2p->remain_on_channel_cookie++; | |
970 | } | |
971 | exit: | |
972 | return err; | |
973 | } | |
974 | ||
975 | ||
0de8aace HM |
976 | /** |
977 | * brcmf_p2p_remain_on_channel() - put device on channel and stay there. | |
978 | * | |
979 | * @wiphy: wiphy device. | |
980 | * @channel: channel to stay on. | |
981 | * @duration: time in ms to remain on channel. | |
982 | * | |
983 | */ | |
984 | int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, | |
985 | struct ieee80211_channel *channel, | |
986 | unsigned int duration, u64 *cookie) | |
987 | { | |
988 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
989 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
0de8aace | 990 | s32 err; |
6eda4e2c | 991 | u16 channel_nr; |
0de8aace | 992 | |
6eda4e2c HM |
993 | channel_nr = ieee80211_frequency_to_channel(channel->center_freq); |
994 | brcmf_dbg(TRACE, "Enter, channel: %d, duration ms (%d)\n", channel_nr, | |
0de8aace HM |
995 | duration); |
996 | ||
0de8aace HM |
997 | err = brcmf_p2p_enable_discovery(p2p); |
998 | if (err) | |
999 | goto exit; | |
6eda4e2c | 1000 | err = brcmf_p2p_discover_listen(p2p, channel_nr, duration); |
0de8aace HM |
1001 | if (err) |
1002 | goto exit; | |
1003 | ||
f2058dde HM |
1004 | memcpy(&p2p->remain_on_channel, channel, sizeof(*channel)); |
1005 | *cookie = p2p->remain_on_channel_cookie; | |
1ce3086c | 1006 | cfg80211_ready_on_channel(wdev, *cookie, channel, duration, GFP_KERNEL); |
0de8aace HM |
1007 | |
1008 | exit: | |
0de8aace HM |
1009 | return err; |
1010 | } | |
1011 | ||
1012 | ||
1013 | /** | |
1014 | * brcmf_p2p_notify_listen_complete() - p2p listen has completed. | |
1015 | * | |
1016 | * @ifp: interfac control. | |
1017 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1018 | * @data: payload of message. Not used. | |
1019 | * | |
1020 | */ | |
1021 | int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp, | |
1022 | const struct brcmf_event_msg *e, | |
1023 | void *data) | |
1024 | { | |
1025 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1026 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1027 | ||
1028 | brcmf_dbg(TRACE, "Enter\n"); | |
f2058dde | 1029 | if (test_and_clear_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, |
6eda4e2c HM |
1030 | &p2p->status)) { |
1031 | if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1032 | &p2p->status)) { | |
1033 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1034 | &p2p->status); | |
1035 | brcmf_dbg(INFO, "Listen DONE, wake up wait_next_af\n"); | |
1036 | complete(&p2p->wait_next_af); | |
1037 | } | |
1038 | ||
f2058dde HM |
1039 | cfg80211_remain_on_channel_expired(&ifp->vif->wdev, |
1040 | p2p->remain_on_channel_cookie, | |
0de8aace HM |
1041 | &p2p->remain_on_channel, |
1042 | GFP_KERNEL); | |
6eda4e2c | 1043 | } |
0de8aace HM |
1044 | return 0; |
1045 | } | |
1046 | ||
1047 | ||
1048 | /** | |
1049 | * brcmf_p2p_cancel_remain_on_channel() - cancel p2p listen state. | |
1050 | * | |
1051 | * @ifp: interfac control. | |
1052 | * | |
1053 | */ | |
1054 | void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp) | |
1055 | { | |
1056 | if (!ifp) | |
1057 | return; | |
1058 | brcmf_p2p_set_discover_state(ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
1059 | brcmf_p2p_notify_listen_complete(ifp, NULL, NULL); | |
1060 | } | |
1061 | ||
1062 | ||
6eda4e2c HM |
1063 | /** |
1064 | * brcmf_p2p_act_frm_search() - search function for action frame. | |
1065 | * | |
1066 | * @p2p: p2p device. | |
1067 | * channel: channel on which action frame is to be trasmitted. | |
1068 | * | |
1069 | * search function to reach at common channel to send action frame. When | |
1070 | * channel is 0 then all social channels will be used to send af | |
1071 | */ | |
1072 | static s32 brcmf_p2p_act_frm_search(struct brcmf_p2p_info *p2p, u16 channel) | |
1073 | { | |
1074 | s32 err; | |
1075 | u32 channel_cnt; | |
1076 | u16 *default_chan_list; | |
1077 | u32 i; | |
1078 | ||
1079 | brcmf_dbg(TRACE, "Enter\n"); | |
1080 | ||
1081 | if (channel) | |
1082 | channel_cnt = AF_PEER_SEARCH_CNT; | |
1083 | else | |
1084 | channel_cnt = SOCIAL_CHAN_CNT; | |
1085 | default_chan_list = kzalloc(channel_cnt * sizeof(*default_chan_list), | |
1086 | GFP_KERNEL); | |
1087 | if (default_chan_list == NULL) { | |
1088 | brcmf_err("channel list allocation failed\n"); | |
1089 | err = -ENOMEM; | |
1090 | goto exit; | |
1091 | } | |
1092 | if (channel) { | |
1093 | /* insert same channel to the chan_list */ | |
1094 | for (i = 0; i < channel_cnt; i++) | |
1095 | default_chan_list[i] = | |
1096 | brcmf_p2p_chnr_to_chspec(channel); | |
1097 | } else { | |
1098 | default_chan_list[0] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_1); | |
1099 | default_chan_list[1] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_2); | |
1100 | default_chan_list[2] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_3); | |
1101 | } | |
1102 | err = brcmf_p2p_escan(p2p, channel_cnt, default_chan_list, | |
1103 | WL_P2P_DISC_ST_SEARCH, WL_ESCAN_ACTION_START, | |
1104 | P2PAPI_BSSCFG_DEVICE); | |
1105 | kfree(default_chan_list); | |
1106 | exit: | |
1107 | return err; | |
1108 | } | |
1109 | ||
1110 | ||
1111 | /** | |
1112 | * brcmf_p2p_afx_handler() - afx worker thread. | |
1113 | * | |
1114 | * @work: | |
1115 | * | |
1116 | */ | |
1117 | static void brcmf_p2p_afx_handler(struct work_struct *work) | |
1118 | { | |
1119 | struct afx_hdl *afx_hdl = container_of(work, struct afx_hdl, afx_work); | |
1120 | struct brcmf_p2p_info *p2p = container_of(afx_hdl, | |
1121 | struct brcmf_p2p_info, | |
1122 | afx_hdl); | |
1123 | s32 err; | |
1124 | ||
1125 | if (!afx_hdl->is_active) | |
1126 | return; | |
1127 | ||
1128 | if (afx_hdl->is_listen && afx_hdl->my_listen_chan) | |
1129 | /* 100ms ~ 300ms */ | |
1130 | err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan, | |
1131 | 100 * (1 + (random32() % 3))); | |
1132 | else | |
1133 | err = brcmf_p2p_act_frm_search(p2p, afx_hdl->peer_listen_chan); | |
1134 | ||
1135 | if (err) { | |
1136 | brcmf_err("ERROR occurred! value is (%d)\n", err); | |
1137 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1138 | &p2p->status)) | |
1139 | complete(&afx_hdl->act_frm_scan); | |
1140 | } | |
1141 | } | |
1142 | ||
1143 | ||
1144 | /** | |
1145 | * brcmf_p2p_af_searching_channel() - search channel. | |
1146 | * | |
1147 | * @p2p: p2p device info struct. | |
1148 | * | |
1149 | */ | |
1150 | static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p) | |
1151 | { | |
1152 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
1153 | struct brcmf_cfg80211_vif *pri_vif; | |
1154 | unsigned long duration; | |
1155 | s32 retry; | |
1156 | ||
1157 | brcmf_dbg(TRACE, "Enter\n"); | |
1158 | ||
1159 | pri_vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
1160 | ||
1161 | INIT_COMPLETION(afx_hdl->act_frm_scan); | |
1162 | set_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status); | |
1163 | afx_hdl->is_active = true; | |
1164 | afx_hdl->peer_chan = P2P_INVALID_CHANNEL; | |
1165 | ||
1166 | /* Loop to wait until we find a peer's channel or the | |
1167 | * pending action frame tx is cancelled. | |
1168 | */ | |
1169 | retry = 0; | |
1170 | duration = msecs_to_jiffies(P2P_AF_FRM_SCAN_MAX_WAIT); | |
1171 | while ((retry < P2P_CHANNEL_SYNC_RETRY) && | |
1172 | (afx_hdl->peer_chan == P2P_INVALID_CHANNEL)) { | |
1173 | afx_hdl->is_listen = false; | |
1174 | brcmf_dbg(TRACE, "Scheduling action frame for sending.. (%d)\n", | |
1175 | retry); | |
1176 | /* search peer on peer's listen channel */ | |
1177 | schedule_work(&afx_hdl->afx_work); | |
1178 | wait_for_completion_timeout(&afx_hdl->act_frm_scan, duration); | |
1179 | if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) || | |
1180 | (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1181 | &p2p->status))) | |
1182 | break; | |
1183 | ||
1184 | if (afx_hdl->my_listen_chan) { | |
1185 | brcmf_dbg(TRACE, "Scheduling listen peer, channel=%d\n", | |
1186 | afx_hdl->my_listen_chan); | |
1187 | /* listen on my listen channel */ | |
1188 | afx_hdl->is_listen = true; | |
1189 | schedule_work(&afx_hdl->afx_work); | |
1190 | wait_for_completion_timeout(&afx_hdl->act_frm_scan, | |
1191 | duration); | |
1192 | } | |
1193 | if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) || | |
1194 | (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1195 | &p2p->status))) | |
1196 | break; | |
1197 | retry++; | |
1198 | ||
1199 | /* if sta is connected or connecting, sleep for a while before | |
1200 | * retry af tx or finding a peer | |
1201 | */ | |
1202 | if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &pri_vif->sme_state) || | |
1203 | test_bit(BRCMF_VIF_STATUS_CONNECTING, &pri_vif->sme_state)) | |
1204 | msleep(P2P_DEFAULT_SLEEP_TIME_VSDB); | |
1205 | } | |
1206 | ||
1207 | brcmf_dbg(TRACE, "Completed search/listen peer_chan=%d\n", | |
1208 | afx_hdl->peer_chan); | |
1209 | afx_hdl->is_active = false; | |
1210 | ||
1211 | clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status); | |
1212 | ||
1213 | return afx_hdl->peer_chan; | |
1214 | } | |
1215 | ||
1216 | ||
1217 | /** | |
1218 | * brcmf_p2p_scan_finding_common_channel() - was escan used for finding channel | |
1219 | * | |
1220 | * @cfg: common configuration struct. | |
1221 | * @bi: bss info struct, result from scan. | |
1222 | * | |
1223 | */ | |
1224 | bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg, | |
1225 | struct brcmf_bss_info_le *bi) | |
1226 | ||
1227 | { | |
1228 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1229 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
1230 | u8 *ie; | |
1231 | s32 err; | |
1232 | u8 p2p_dev_addr[ETH_ALEN]; | |
1233 | ||
1234 | if (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status)) | |
1235 | return false; | |
1236 | ||
1237 | if (bi == NULL) { | |
1238 | brcmf_dbg(TRACE, "ACTION FRAME SCAN Done\n"); | |
1239 | if (afx_hdl->peer_chan == P2P_INVALID_CHANNEL) | |
1240 | complete(&afx_hdl->act_frm_scan); | |
1241 | return true; | |
1242 | } | |
1243 | ||
1244 | ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); | |
1245 | memset(p2p_dev_addr, 0, sizeof(p2p_dev_addr)); | |
1246 | err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length), | |
1247 | IEEE80211_P2P_ATTR_DEVICE_INFO, | |
1248 | p2p_dev_addr, sizeof(p2p_dev_addr)); | |
1249 | if (err < 0) | |
1250 | err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length), | |
1251 | IEEE80211_P2P_ATTR_DEVICE_ID, | |
1252 | p2p_dev_addr, sizeof(p2p_dev_addr)); | |
1253 | if ((err >= 0) && | |
1254 | (!memcmp(p2p_dev_addr, afx_hdl->tx_dst_addr, ETH_ALEN))) { | |
1255 | afx_hdl->peer_chan = bi->ctl_ch ? bi->ctl_ch : | |
1256 | CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec)); | |
1257 | brcmf_dbg(TRACE, "ACTION FRAME SCAN : Peer %pM found, channel : %d\n", | |
1258 | afx_hdl->tx_dst_addr, afx_hdl->peer_chan); | |
1259 | complete(&afx_hdl->act_frm_scan); | |
1260 | } | |
1261 | return true; | |
1262 | } | |
1263 | ||
1264 | /** | |
1265 | * brcmf_p2p_stop_wait_next_action_frame() - finish scan if af tx complete. | |
1266 | * | |
1267 | * @cfg: common configuration struct. | |
1268 | * | |
1269 | */ | |
1270 | static void | |
1271 | brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg) | |
1272 | { | |
1273 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
a0f472ac | 1274 | struct brcmf_if *ifp = cfg->escan_info.ifp; |
6eda4e2c HM |
1275 | |
1276 | if (test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status) && | |
1277 | (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status) || | |
1278 | test_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status))) { | |
1279 | brcmf_dbg(TRACE, "*** Wake UP ** abort actframe iovar\n"); | |
1280 | /* if channel is not zero, "actfame" uses off channel scan. | |
1281 | * So abort scan for off channel completion. | |
1282 | */ | |
1283 | if (p2p->af_sent_channel) | |
a0f472ac | 1284 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1285 | } else if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, |
1286 | &p2p->status)) { | |
1287 | brcmf_dbg(TRACE, "*** Wake UP ** abort listen for next af frame\n"); | |
1288 | /* So abort scan to cancel listen */ | |
a0f472ac | 1289 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1290 | } |
1291 | } | |
1292 | ||
1293 | ||
1294 | /** | |
1295 | * brcmf_p2p_gon_req_collision() - Check if go negotiaton collission | |
1296 | * | |
1297 | * @p2p: p2p device info struct. | |
1298 | * | |
1299 | * return true if recevied action frame is to be dropped. | |
1300 | */ | |
1301 | static bool | |
1302 | brcmf_p2p_gon_req_collision(struct brcmf_p2p_info *p2p, u8 *mac) | |
1303 | { | |
1304 | struct brcmf_cfg80211_info *cfg = p2p->cfg; | |
1305 | struct brcmf_if *ifp; | |
1306 | ||
1307 | brcmf_dbg(TRACE, "Enter\n"); | |
1308 | ||
1309 | if (!test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) || | |
1310 | !p2p->gon_req_action) | |
1311 | return false; | |
1312 | ||
1313 | brcmf_dbg(TRACE, "GO Negotiation Request COLLISION !!!\n"); | |
1314 | /* if sa(peer) addr is less than da(my) addr, then this device | |
1315 | * process peer's gon request and block to send gon req. | |
1316 | * if not (sa addr > da addr), | |
1317 | * this device will process gon request and drop gon req of peer. | |
1318 | */ | |
1319 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp; | |
1320 | if (memcmp(mac, ifp->mac_addr, ETH_ALEN) < 0) { | |
1321 | brcmf_dbg(INFO, "Block transmit gon req !!!\n"); | |
1322 | p2p->block_gon_req_tx = true; | |
1323 | /* if we are finding a common channel for sending af, | |
1324 | * do not scan more to block to send current gon req | |
1325 | */ | |
1326 | if (test_and_clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1327 | &p2p->status)) | |
1328 | complete(&p2p->afx_hdl.act_frm_scan); | |
1329 | if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1330 | &p2p->status)) | |
1331 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1332 | return false; | |
1333 | } | |
1334 | ||
1335 | /* drop gon request of peer to process gon request by this device. */ | |
1336 | brcmf_dbg(INFO, "Drop received gon req !!!\n"); | |
1337 | ||
1338 | return true; | |
1339 | } | |
1340 | ||
1341 | ||
e6da3400 HM |
1342 | /** |
1343 | * brcmf_p2p_notify_action_frame_rx() - received action frame. | |
1344 | * | |
1345 | * @ifp: interfac control. | |
1346 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1347 | * @data: payload of message, containing action frame data. | |
1348 | * | |
1349 | */ | |
1350 | int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp, | |
1351 | const struct brcmf_event_msg *e, | |
1352 | void *data) | |
1353 | { | |
6eda4e2c HM |
1354 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; |
1355 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1356 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
e6da3400 HM |
1357 | struct wireless_dev *wdev; |
1358 | u32 mgmt_frame_len = e->datalen - sizeof(struct brcmf_rx_mgmt_data); | |
1359 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
6eda4e2c HM |
1360 | u8 *frame = (u8 *)(rxframe + 1); |
1361 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1362 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
e6da3400 HM |
1363 | u16 chanspec = be16_to_cpu(rxframe->chanspec); |
1364 | struct ieee80211_mgmt *mgmt_frame; | |
e6da3400 HM |
1365 | s32 freq; |
1366 | u16 mgmt_type; | |
6eda4e2c | 1367 | u8 action; |
e6da3400 HM |
1368 | |
1369 | /* Check if wpa_supplicant has registered for this frame */ | |
1370 | brcmf_dbg(INFO, "ifp->vif->mgmt_rx_reg %04x\n", ifp->vif->mgmt_rx_reg); | |
1371 | mgmt_type = (IEEE80211_STYPE_ACTION & IEEE80211_FCTL_STYPE) >> 4; | |
1372 | if ((ifp->vif->mgmt_rx_reg & BIT(mgmt_type)) == 0) | |
1373 | return 0; | |
1374 | ||
6eda4e2c HM |
1375 | brcmf_p2p_print_actframe(false, frame, mgmt_frame_len); |
1376 | ||
1377 | action = P2P_PAF_SUBTYPE_INVALID; | |
1378 | if (brcmf_p2p_is_pub_action(frame, mgmt_frame_len)) { | |
1379 | act_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
1380 | action = act_frm->subtype; | |
1381 | if ((action == P2P_PAF_GON_REQ) && | |
1382 | (brcmf_p2p_gon_req_collision(p2p, (u8 *)e->addr))) { | |
1383 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1384 | &p2p->status) && | |
1385 | (memcmp(afx_hdl->tx_dst_addr, e->addr, | |
1386 | ETH_ALEN) == 0)) { | |
1387 | afx_hdl->peer_chan = CHSPEC_CHANNEL(chanspec); | |
1388 | brcmf_dbg(INFO, "GON request: Peer found, channel=%d\n", | |
1389 | afx_hdl->peer_chan); | |
1390 | complete(&afx_hdl->act_frm_scan); | |
1391 | } | |
1392 | return 0; | |
1393 | } | |
1394 | /* After complete GO Negotiation, roll back to mpc mode */ | |
1395 | if ((action == P2P_PAF_GON_CONF) || | |
1396 | (action == P2P_PAF_PROVDIS_RSP)) | |
f96aa07e | 1397 | brcmf_set_mpc(ifp, 1); |
6eda4e2c HM |
1398 | if (action == P2P_PAF_GON_CONF) { |
1399 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1400 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1401 | } | |
1402 | } else if (brcmf_p2p_is_gas_action(frame, mgmt_frame_len)) { | |
1403 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
1404 | action = sd_act_frm->action; | |
1405 | } | |
1406 | ||
1407 | if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) && | |
1408 | (p2p->next_af_subtype == action)) { | |
1409 | brcmf_dbg(TRACE, "We got a right next frame! (%d)\n", action); | |
1410 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1411 | &p2p->status); | |
1412 | /* Stop waiting for next AF. */ | |
1413 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1414 | } | |
e6da3400 HM |
1415 | |
1416 | mgmt_frame = kzalloc(offsetof(struct ieee80211_mgmt, u) + | |
1417 | mgmt_frame_len, GFP_KERNEL); | |
1418 | if (!mgmt_frame) { | |
1419 | brcmf_err("No memory available for action frame\n"); | |
1420 | return -ENOMEM; | |
1421 | } | |
1422 | memcpy(mgmt_frame->da, ifp->mac_addr, ETH_ALEN); | |
6eda4e2c HM |
1423 | brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mgmt_frame->bssid, |
1424 | ETH_ALEN); | |
e6da3400 HM |
1425 | memcpy(mgmt_frame->sa, e->addr, ETH_ALEN); |
1426 | mgmt_frame->frame_control = cpu_to_le16(IEEE80211_STYPE_ACTION); | |
6eda4e2c | 1427 | memcpy(&mgmt_frame->u, frame, mgmt_frame_len); |
e6da3400 HM |
1428 | mgmt_frame_len += offsetof(struct ieee80211_mgmt, u); |
1429 | ||
1430 | freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec), | |
1431 | CHSPEC_IS2G(chanspec) ? | |
1432 | IEEE80211_BAND_2GHZ : | |
1433 | IEEE80211_BAND_5GHZ); | |
1434 | wdev = ifp->ndev->ieee80211_ptr; | |
1435 | cfg80211_rx_mgmt(wdev, freq, 0, (u8 *)mgmt_frame, mgmt_frame_len, | |
1436 | GFP_ATOMIC); | |
1437 | ||
1438 | kfree(mgmt_frame); | |
1439 | return 0; | |
1440 | } | |
1441 | ||
1442 | ||
18e2f61d HM |
1443 | /** |
1444 | * brcmf_p2p_notify_action_tx_complete() - transmit action frame complete | |
1445 | * | |
1446 | * @ifp: interfac control. | |
1447 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1448 | * @data: not used. | |
1449 | * | |
1450 | */ | |
1451 | int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp, | |
1452 | const struct brcmf_event_msg *e, | |
1453 | void *data) | |
1454 | { | |
1455 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1456 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1457 | ||
6eda4e2c HM |
1458 | brcmf_dbg(INFO, "Enter: event %s, status=%d\n", |
1459 | e->event_code == BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE ? | |
1460 | "ACTION_FRAME_OFF_CHAN_COMPLETE" : "ACTION_FRAME_COMPLETE", | |
1461 | e->status); | |
18e2f61d | 1462 | |
6eda4e2c HM |
1463 | if (!test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status)) |
1464 | return 0; | |
1465 | ||
1466 | if (e->event_code == BRCMF_E_ACTION_FRAME_COMPLETE) { | |
1467 | if (e->status == BRCMF_E_STATUS_SUCCESS) | |
1468 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, | |
1469 | &p2p->status); | |
1470 | else { | |
1471 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1472 | /* If there is no ack, we don't need to wait for | |
1473 | * WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE event | |
1474 | */ | |
1475 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1476 | } | |
18e2f61d | 1477 | |
6eda4e2c HM |
1478 | } else { |
1479 | complete(&p2p->send_af_done); | |
1480 | } | |
18e2f61d HM |
1481 | return 0; |
1482 | } | |
1483 | ||
1484 | ||
1485 | /** | |
1486 | * brcmf_p2p_tx_action_frame() - send action frame over fil. | |
1487 | * | |
1488 | * @p2p: p2p info struct for vif. | |
1489 | * @af_params: action frame data/info. | |
1490 | * | |
1491 | * Send an action frame immediately without doing channel synchronization. | |
1492 | * | |
1493 | * This function waits for a completion event before returning. | |
1494 | * The WLC_E_ACTION_FRAME_COMPLETE event will be received when the action | |
1495 | * frame is transmitted. | |
1496 | */ | |
1497 | static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p, | |
1498 | struct brcmf_fil_af_params_le *af_params) | |
1499 | { | |
1500 | struct brcmf_cfg80211_vif *vif; | |
1501 | s32 err = 0; | |
1502 | s32 timeout = 0; | |
1503 | ||
1504 | brcmf_dbg(TRACE, "Enter\n"); | |
1505 | ||
6eda4e2c | 1506 | INIT_COMPLETION(p2p->send_af_done); |
18e2f61d HM |
1507 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); |
1508 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1509 | ||
1510 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1511 | err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe", af_params, | |
1512 | sizeof(*af_params)); | |
1513 | if (err) { | |
1514 | brcmf_err(" sending action frame has failed\n"); | |
1515 | goto exit; | |
1516 | } | |
1517 | ||
6eda4e2c HM |
1518 | p2p->af_sent_channel = le32_to_cpu(af_params->channel); |
1519 | p2p->af_tx_sent_jiffies = jiffies; | |
1520 | ||
18e2f61d HM |
1521 | timeout = wait_for_completion_timeout(&p2p->send_af_done, |
1522 | msecs_to_jiffies(P2P_AF_MAX_WAIT_TIME)); | |
1523 | ||
1524 | if (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status)) { | |
1525 | brcmf_dbg(TRACE, "TX action frame operation is success\n"); | |
1526 | } else { | |
1527 | err = -EIO; | |
1528 | brcmf_dbg(TRACE, "TX action frame operation has failed\n"); | |
1529 | } | |
1530 | /* clear status bit for action tx */ | |
1531 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); | |
1532 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1533 | ||
1534 | exit: | |
1535 | return err; | |
1536 | } | |
1537 | ||
1538 | ||
1539 | /** | |
1540 | * brcmf_p2p_pub_af_tx() - public action frame tx routine. | |
1541 | * | |
1542 | * @cfg: driver private data for cfg80211 interface. | |
1543 | * @af_params: action frame data/info. | |
1544 | * @config_af_params: configuration data for action frame. | |
1545 | * | |
1546 | * routine which transmits ation frame public type. | |
1547 | */ | |
1548 | static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg, | |
1549 | struct brcmf_fil_af_params_le *af_params, | |
1550 | struct brcmf_config_af_params *config_af_params) | |
1551 | { | |
1552 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1553 | struct brcmf_fil_action_frame_le *action_frame; | |
1554 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1555 | s32 err = 0; | |
6eda4e2c | 1556 | u16 ie_len; |
18e2f61d HM |
1557 | |
1558 | action_frame = &af_params->action_frame; | |
1559 | act_frm = (struct brcmf_p2p_pub_act_frame *)(action_frame->data); | |
1560 | ||
6eda4e2c HM |
1561 | config_af_params->extra_listen = true; |
1562 | ||
18e2f61d HM |
1563 | switch (act_frm->subtype) { |
1564 | case P2P_PAF_GON_REQ: | |
1565 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status set\n"); | |
1566 | set_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1567 | config_af_params->mpc_onoff = 0; | |
6eda4e2c | 1568 | config_af_params->search_channel = true; |
18e2f61d | 1569 | p2p->next_af_subtype = act_frm->subtype + 1; |
6eda4e2c | 1570 | p2p->gon_req_action = true; |
18e2f61d HM |
1571 | /* increase dwell time to wait for RESP frame */ |
1572 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1573 | break; | |
1574 | case P2P_PAF_GON_RSP: | |
1575 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1576 | /* increase dwell time to wait for CONF frame */ | |
1577 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1578 | break; | |
1579 | case P2P_PAF_GON_CONF: | |
1580 | /* If we reached till GO Neg confirmation reset the filter */ | |
1581 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1582 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1583 | /* turn on mpc again if go nego is done */ | |
1584 | config_af_params->mpc_onoff = 1; | |
1585 | /* minimize dwell time */ | |
1586 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1587 | config_af_params->extra_listen = false; |
18e2f61d HM |
1588 | break; |
1589 | case P2P_PAF_INVITE_REQ: | |
6eda4e2c | 1590 | config_af_params->search_channel = true; |
18e2f61d HM |
1591 | p2p->next_af_subtype = act_frm->subtype + 1; |
1592 | /* increase dwell time */ | |
1593 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1594 | break; | |
1595 | case P2P_PAF_INVITE_RSP: | |
1596 | /* minimize dwell time */ | |
1597 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1598 | config_af_params->extra_listen = false; |
18e2f61d HM |
1599 | break; |
1600 | case P2P_PAF_DEVDIS_REQ: | |
6eda4e2c | 1601 | config_af_params->search_channel = true; |
18e2f61d HM |
1602 | p2p->next_af_subtype = act_frm->subtype + 1; |
1603 | /* maximize dwell time to wait for RESP frame */ | |
1604 | af_params->dwell_time = cpu_to_le32(P2P_AF_LONG_DWELL_TIME); | |
1605 | break; | |
1606 | case P2P_PAF_DEVDIS_RSP: | |
1607 | /* minimize dwell time */ | |
1608 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1609 | config_af_params->extra_listen = false; |
18e2f61d HM |
1610 | break; |
1611 | case P2P_PAF_PROVDIS_REQ: | |
6eda4e2c HM |
1612 | ie_len = le16_to_cpu(action_frame->len) - |
1613 | offsetof(struct brcmf_p2p_pub_act_frame, elts); | |
1614 | if (cfg80211_get_p2p_attr(&act_frm->elts[0], ie_len, | |
1615 | IEEE80211_P2P_ATTR_GROUP_ID, | |
1616 | NULL, 0) < 0) | |
1617 | config_af_params->search_channel = true; | |
18e2f61d HM |
1618 | config_af_params->mpc_onoff = 0; |
1619 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1620 | /* increase dwell time to wait for RESP frame */ | |
1621 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1622 | break; | |
1623 | case P2P_PAF_PROVDIS_RSP: | |
1624 | /* wpa_supplicant send go nego req right after prov disc */ | |
1625 | p2p->next_af_subtype = P2P_PAF_GON_REQ; | |
1626 | /* increase dwell time to MED level */ | |
1627 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
6eda4e2c | 1628 | config_af_params->extra_listen = false; |
18e2f61d HM |
1629 | break; |
1630 | default: | |
1631 | brcmf_err("Unknown p2p pub act frame subtype: %d\n", | |
1632 | act_frm->subtype); | |
1633 | err = -EINVAL; | |
1634 | } | |
1635 | return err; | |
1636 | } | |
1637 | ||
1638 | /** | |
1639 | * brcmf_p2p_send_action_frame() - send action frame . | |
1640 | * | |
1641 | * @cfg: driver private data for cfg80211 interface. | |
1642 | * @ndev: net device to transmit on. | |
1643 | * @af_params: configuration data for action frame. | |
1644 | */ | |
1645 | bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg, | |
1646 | struct net_device *ndev, | |
1647 | struct brcmf_fil_af_params_le *af_params) | |
1648 | { | |
1649 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
a0f472ac | 1650 | struct brcmf_if *ifp = netdev_priv(ndev); |
18e2f61d HM |
1651 | struct brcmf_fil_action_frame_le *action_frame; |
1652 | struct brcmf_config_af_params config_af_params; | |
6eda4e2c | 1653 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; |
18e2f61d HM |
1654 | u16 action_frame_len; |
1655 | bool ack = false; | |
1656 | u8 category; | |
1657 | u8 action; | |
1658 | s32 tx_retry; | |
6eda4e2c HM |
1659 | s32 extra_listen_time; |
1660 | uint delta_ms; | |
18e2f61d HM |
1661 | |
1662 | action_frame = &af_params->action_frame; | |
1663 | action_frame_len = le16_to_cpu(action_frame->len); | |
1664 | ||
1665 | brcmf_p2p_print_actframe(true, action_frame->data, action_frame_len); | |
1666 | ||
1667 | /* Add the default dwell time. Dwell time to stay off-channel */ | |
1668 | /* to wait for a response action frame after transmitting an */ | |
1669 | /* GO Negotiation action frame */ | |
1670 | af_params->dwell_time = cpu_to_le32(P2P_AF_DWELL_TIME); | |
1671 | ||
1672 | category = action_frame->data[DOT11_ACTION_CAT_OFF]; | |
1673 | action = action_frame->data[DOT11_ACTION_ACT_OFF]; | |
1674 | ||
1675 | /* initialize variables */ | |
1676 | p2p->next_af_subtype = P2P_PAF_SUBTYPE_INVALID; | |
6eda4e2c | 1677 | p2p->gon_req_action = false; |
18e2f61d HM |
1678 | |
1679 | /* config parameters */ | |
18e2f61d | 1680 | config_af_params.mpc_onoff = -1; |
6eda4e2c HM |
1681 | config_af_params.search_channel = false; |
1682 | config_af_params.extra_listen = false; | |
18e2f61d HM |
1683 | |
1684 | if (brcmf_p2p_is_pub_action(action_frame->data, action_frame_len)) { | |
1685 | /* p2p public action frame process */ | |
1686 | if (brcmf_p2p_pub_af_tx(cfg, af_params, &config_af_params)) { | |
1687 | /* Just send unknown subtype frame with */ | |
1688 | /* default parameters. */ | |
1689 | brcmf_err("P2P Public action frame, unknown subtype.\n"); | |
1690 | } | |
1691 | } else if (brcmf_p2p_is_gas_action(action_frame->data, | |
1692 | action_frame_len)) { | |
1693 | /* service discovery process */ | |
1694 | if (action == P2PSD_ACTION_ID_GAS_IREQ || | |
1695 | action == P2PSD_ACTION_ID_GAS_CREQ) { | |
6eda4e2c HM |
1696 | /* configure service discovery query frame */ |
1697 | config_af_params.search_channel = true; | |
1698 | ||
18e2f61d HM |
1699 | /* save next af suptype to cancel */ |
1700 | /* remaining dwell time */ | |
1701 | p2p->next_af_subtype = action + 1; | |
1702 | ||
1703 | af_params->dwell_time = | |
1704 | cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1705 | } else if (action == P2PSD_ACTION_ID_GAS_IRESP || | |
1706 | action == P2PSD_ACTION_ID_GAS_CRESP) { | |
1707 | /* configure service discovery response frame */ | |
1708 | af_params->dwell_time = | |
1709 | cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
1710 | } else { | |
1711 | brcmf_err("Unknown action type: %d\n", action); | |
1712 | goto exit; | |
1713 | } | |
1714 | } else if (brcmf_p2p_is_p2p_action(action_frame->data, | |
1715 | action_frame_len)) { | |
1716 | /* do not configure anything. it will be */ | |
1717 | /* sent with a default configuration */ | |
1718 | } else { | |
1719 | brcmf_err("Unknown Frame: category 0x%x, action 0x%x\n", | |
1720 | category, action); | |
1721 | return false; | |
1722 | } | |
1723 | ||
6eda4e2c HM |
1724 | /* if connecting on primary iface, sleep for a while before sending |
1725 | * af tx for VSDB | |
1726 | */ | |
1727 | if (test_bit(BRCMF_VIF_STATUS_CONNECTING, | |
1728 | &p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->sme_state)) | |
1729 | msleep(50); | |
1730 | ||
18e2f61d HM |
1731 | /* if scan is ongoing, abort current scan. */ |
1732 | if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) | |
1733 | brcmf_abort_scanning(cfg); | |
1734 | ||
6eda4e2c HM |
1735 | memcpy(afx_hdl->tx_dst_addr, action_frame->da, ETH_ALEN); |
1736 | ||
18e2f61d HM |
1737 | /* To make sure to send successfully action frame, turn off mpc */ |
1738 | if (config_af_params.mpc_onoff == 0) | |
a0f472ac | 1739 | brcmf_set_mpc(ifp, 0); |
18e2f61d | 1740 | |
6eda4e2c HM |
1741 | /* set status and destination address before sending af */ |
1742 | if (p2p->next_af_subtype != P2P_PAF_SUBTYPE_INVALID) { | |
1743 | /* set status to cancel the remained dwell time in rx process */ | |
1744 | set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status); | |
1745 | } | |
1746 | ||
1747 | p2p->af_sent_channel = 0; | |
1748 | set_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status); | |
1749 | /* validate channel and p2p ies */ | |
1750 | if (config_af_params.search_channel && | |
1751 | IS_P2P_SOCIAL_CHANNEL(le32_to_cpu(af_params->channel)) && | |
1752 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->saved_ie.probe_req_ie_len) { | |
1753 | afx_hdl = &p2p->afx_hdl; | |
1754 | afx_hdl->peer_listen_chan = le32_to_cpu(af_params->channel); | |
1755 | ||
1756 | if (brcmf_p2p_af_searching_channel(p2p) == | |
1757 | P2P_INVALID_CHANNEL) { | |
1758 | brcmf_err("Couldn't find peer's channel.\n"); | |
1759 | goto exit; | |
1760 | } | |
1761 | ||
1762 | /* Abort scan even for VSDB scenarios. Scan gets aborted in | |
1763 | * firmware but after the check of piggyback algorithm. To take | |
1764 | * care of current piggback algo, lets abort the scan here | |
1765 | * itself. | |
1766 | */ | |
a0f472ac | 1767 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1768 | |
1769 | /* update channel */ | |
1770 | af_params->channel = cpu_to_le32(afx_hdl->peer_chan); | |
1771 | } | |
1772 | ||
18e2f61d | 1773 | tx_retry = 0; |
6eda4e2c HM |
1774 | while (!p2p->block_gon_req_tx && |
1775 | (ack == false) && (tx_retry < P2P_AF_TX_MAX_RETRY)) { | |
18e2f61d HM |
1776 | ack = !brcmf_p2p_tx_action_frame(p2p, af_params); |
1777 | tx_retry++; | |
1778 | } | |
6eda4e2c | 1779 | if (ack == false) { |
18e2f61d | 1780 | brcmf_err("Failed to send Action Frame(retry %d)\n", tx_retry); |
6eda4e2c HM |
1781 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
1782 | } | |
18e2f61d HM |
1783 | |
1784 | exit: | |
6eda4e2c HM |
1785 | clear_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status); |
1786 | ||
1787 | /* WAR: sometimes dongle does not keep the dwell time of 'actframe'. | |
1788 | * if we coundn't get the next action response frame and dongle does | |
1789 | * not keep the dwell time, go to listen state again to get next action | |
1790 | * response frame. | |
1791 | */ | |
1792 | if (ack && config_af_params.extra_listen && !p2p->block_gon_req_tx && | |
1793 | test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) && | |
1794 | p2p->af_sent_channel == afx_hdl->my_listen_chan) { | |
1795 | delta_ms = jiffies_to_msecs(jiffies - p2p->af_tx_sent_jiffies); | |
1796 | if (le32_to_cpu(af_params->dwell_time) > delta_ms) | |
1797 | extra_listen_time = le32_to_cpu(af_params->dwell_time) - | |
1798 | delta_ms; | |
1799 | else | |
1800 | extra_listen_time = 0; | |
1801 | if (extra_listen_time > 50) { | |
1802 | set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1803 | &p2p->status); | |
1804 | brcmf_dbg(INFO, "Wait more time! actual af time:%d, calculated extra listen:%d\n", | |
1805 | le32_to_cpu(af_params->dwell_time), | |
1806 | extra_listen_time); | |
1807 | extra_listen_time += 100; | |
1808 | if (!brcmf_p2p_discover_listen(p2p, | |
1809 | p2p->af_sent_channel, | |
1810 | extra_listen_time)) { | |
1811 | unsigned long duration; | |
1812 | ||
1813 | extra_listen_time += 100; | |
1814 | duration = msecs_to_jiffies(extra_listen_time); | |
1815 | wait_for_completion_timeout(&p2p->wait_next_af, | |
1816 | duration); | |
1817 | } | |
1818 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1819 | &p2p->status); | |
1820 | } | |
1821 | } | |
1822 | ||
1823 | if (p2p->block_gon_req_tx) { | |
1824 | /* if ack is true, supplicant will wait more time(100ms). | |
1825 | * so we will return it as a success to get more time . | |
1826 | */ | |
1827 | p2p->block_gon_req_tx = false; | |
1828 | ack = true; | |
1829 | } | |
1830 | ||
1831 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status); | |
18e2f61d HM |
1832 | /* if all done, turn mpc on again */ |
1833 | if (config_af_params.mpc_onoff == 1) | |
a0f472ac | 1834 | brcmf_set_mpc(ifp, 1); |
18e2f61d HM |
1835 | |
1836 | return ack; | |
1837 | } | |
1838 | ||
6eda4e2c HM |
1839 | /** |
1840 | * brcmf_p2p_notify_rx_mgmt_p2p_probereq() - Event handler for p2p probe req. | |
1841 | * | |
1842 | * @ifp: interface pointer for which event was received. | |
1843 | * @e: even message. | |
1844 | * @data: payload of event message (probe request). | |
1845 | */ | |
1846 | s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp, | |
1847 | const struct brcmf_event_msg *e, | |
1848 | void *data) | |
1849 | { | |
1850 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1851 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1852 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
1853 | struct wireless_dev *wdev; | |
1854 | struct brcmf_cfg80211_vif *vif = ifp->vif; | |
1855 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
1856 | u16 chanspec = be16_to_cpu(rxframe->chanspec); | |
1857 | u8 *mgmt_frame; | |
1858 | u32 mgmt_frame_len; | |
1859 | s32 freq; | |
1860 | u16 mgmt_type; | |
1861 | ||
1862 | brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code, | |
1863 | e->reason); | |
1864 | ||
1865 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status) && | |
1866 | (memcmp(afx_hdl->tx_dst_addr, e->addr, ETH_ALEN) == 0)) { | |
1867 | afx_hdl->peer_chan = CHSPEC_CHANNEL(chanspec); | |
1868 | brcmf_dbg(INFO, "PROBE REQUEST: Peer found, channel=%d\n", | |
1869 | afx_hdl->peer_chan); | |
1870 | complete(&afx_hdl->act_frm_scan); | |
1871 | } | |
1872 | ||
1873 | /* Firmware sends us two proberesponses for each idx one. At the */ | |
1874 | /* moment anything but bsscfgidx 0 is passed up to supplicant */ | |
1875 | if (e->bsscfgidx == 0) | |
1876 | return 0; | |
1877 | ||
1878 | /* Filter any P2P probe reqs arriving during the GO-NEG Phase */ | |
1879 | if (test_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status)) { | |
1880 | brcmf_dbg(INFO, "Filtering P2P probe_req in GO-NEG phase\n"); | |
1881 | return 0; | |
1882 | } | |
1883 | ||
1884 | /* Check if wpa_supplicant has registered for this frame */ | |
1885 | brcmf_dbg(INFO, "vif->mgmt_rx_reg %04x\n", vif->mgmt_rx_reg); | |
1886 | mgmt_type = (IEEE80211_STYPE_PROBE_REQ & IEEE80211_FCTL_STYPE) >> 4; | |
1887 | if ((vif->mgmt_rx_reg & BIT(mgmt_type)) == 0) | |
1888 | return 0; | |
1889 | ||
1890 | mgmt_frame = (u8 *)(rxframe + 1); | |
1891 | mgmt_frame_len = e->datalen - sizeof(*rxframe); | |
1892 | freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec), | |
1893 | CHSPEC_IS2G(chanspec) ? | |
1894 | IEEE80211_BAND_2GHZ : | |
1895 | IEEE80211_BAND_5GHZ); | |
1896 | wdev = ifp->ndev->ieee80211_ptr; | |
1897 | cfg80211_rx_mgmt(wdev, freq, 0, mgmt_frame, mgmt_frame_len, GFP_ATOMIC); | |
1898 | ||
1899 | brcmf_dbg(INFO, "mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n", | |
1900 | mgmt_frame_len, e->datalen, chanspec, freq); | |
1901 | ||
1902 | return 0; | |
1903 | } | |
1904 | ||
18e2f61d | 1905 | |
9f440b7b AS |
1906 | /** |
1907 | * brcmf_p2p_attach() - attach for P2P. | |
1908 | * | |
1909 | * @cfg: driver private data for cfg80211 interface. | |
1910 | */ | |
2fde59d9 | 1911 | s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg) |
9f440b7b | 1912 | { |
2fde59d9 HM |
1913 | struct brcmf_if *pri_ifp; |
1914 | struct brcmf_if *p2p_ifp; | |
1915 | struct brcmf_cfg80211_vif *p2p_vif; | |
9f440b7b | 1916 | struct brcmf_p2p_info *p2p; |
2fde59d9 HM |
1917 | struct brcmf_pub *drvr; |
1918 | s32 bssidx; | |
1919 | s32 err = 0; | |
9f440b7b AS |
1920 | |
1921 | p2p = &cfg->p2p; | |
9f440b7b | 1922 | p2p->cfg = cfg; |
2fde59d9 HM |
1923 | |
1924 | drvr = cfg->pub; | |
1925 | ||
1926 | pri_ifp = drvr->iflist[0]; | |
1927 | p2p_ifp = drvr->iflist[1]; | |
1928 | ||
1929 | p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif = pri_ifp->vif; | |
1930 | ||
1931 | if (p2p_ifp) { | |
dded3d53 | 1932 | p2p_vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_P2P_DEVICE, |
2fde59d9 HM |
1933 | false); |
1934 | if (IS_ERR(p2p_vif)) { | |
1935 | brcmf_err("could not create discovery vif\n"); | |
1936 | err = -ENOMEM; | |
1937 | goto exit; | |
1938 | } | |
1939 | ||
1940 | p2p_vif->ifp = p2p_ifp; | |
1941 | p2p_ifp->vif = p2p_vif; | |
1942 | p2p_vif->wdev.netdev = p2p_ifp->ndev; | |
1943 | p2p_ifp->ndev->ieee80211_ptr = &p2p_vif->wdev; | |
1944 | SET_NETDEV_DEV(p2p_ifp->ndev, wiphy_dev(cfg->wiphy)); | |
1945 | ||
1946 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif; | |
1947 | ||
27f10e38 | 1948 | brcmf_p2p_generate_bss_mac(p2p, NULL); |
01b8e7db | 1949 | memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN); |
2fde59d9 HM |
1950 | brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr); |
1951 | ||
1952 | /* Initialize P2P Discovery in the firmware */ | |
1953 | err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); | |
1954 | if (err < 0) { | |
1955 | brcmf_err("set p2p_disc error\n"); | |
1956 | brcmf_free_vif(p2p_vif); | |
1957 | goto exit; | |
1958 | } | |
1959 | /* obtain bsscfg index for P2P discovery */ | |
1960 | err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx); | |
1961 | if (err < 0) { | |
1962 | brcmf_err("retrieving discover bsscfg index failed\n"); | |
1963 | brcmf_free_vif(p2p_vif); | |
1964 | goto exit; | |
1965 | } | |
1966 | /* Verify that firmware uses same bssidx as driver !! */ | |
1967 | if (p2p_ifp->bssidx != bssidx) { | |
1968 | brcmf_err("Incorrect bssidx=%d, compared to p2p_ifp->bssidx=%d\n", | |
1969 | bssidx, p2p_ifp->bssidx); | |
1970 | brcmf_free_vif(p2p_vif); | |
1971 | goto exit; | |
1972 | } | |
1973 | ||
1974 | init_completion(&p2p->send_af_done); | |
6eda4e2c HM |
1975 | INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler); |
1976 | init_completion(&p2p->afx_hdl.act_frm_scan); | |
1977 | init_completion(&p2p->wait_next_af); | |
2fde59d9 HM |
1978 | } |
1979 | exit: | |
1980 | return err; | |
9f440b7b AS |
1981 | } |
1982 | ||
2fde59d9 | 1983 | |
9f440b7b AS |
1984 | /** |
1985 | * brcmf_p2p_detach() - detach P2P. | |
1986 | * | |
1987 | * @p2p: P2P specific data. | |
1988 | */ | |
1989 | void brcmf_p2p_detach(struct brcmf_p2p_info *p2p) | |
1990 | { | |
2fde59d9 HM |
1991 | struct brcmf_cfg80211_vif *vif; |
1992 | ||
1993 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1994 | if (vif != NULL) { | |
1995 | brcmf_p2p_cancel_remain_on_channel(vif->ifp); | |
0de8aace | 1996 | brcmf_p2p_deinit_discovery(p2p); |
2fde59d9 HM |
1997 | /* remove discovery interface */ |
1998 | brcmf_free_vif(vif); | |
1999 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; | |
0de8aace | 2000 | } |
9f440b7b AS |
2001 | /* just set it all to zero */ |
2002 | memset(p2p, 0, sizeof(*p2p)); | |
2003 | } | |
2004 | ||
7a5c1f64 HM |
2005 | /** |
2006 | * brcmf_p2p_get_current_chanspec() - Get current operation channel. | |
2007 | * | |
2008 | * @p2p: P2P specific data. | |
2009 | * @chanspec: chanspec to be returned. | |
2010 | */ | |
2011 | static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p, | |
2012 | u16 *chanspec) | |
d3c0b633 | 2013 | { |
7a5c1f64 | 2014 | struct brcmf_if *ifp; |
d3c0b633 | 2015 | struct brcmf_fil_chan_info_le ci; |
7a5c1f64 HM |
2016 | s32 err; |
2017 | ||
2018 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; | |
2019 | ||
2020 | *chanspec = 11 & WL_CHANSPEC_CHAN_MASK; | |
d3c0b633 | 2021 | |
d3c0b633 AS |
2022 | err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci)); |
2023 | if (!err) { | |
7a5c1f64 HM |
2024 | *chanspec = le32_to_cpu(ci.hw_channel) & WL_CHANSPEC_CHAN_MASK; |
2025 | if (*chanspec < CH_MAX_2G_CHANNEL) | |
2026 | *chanspec |= WL_CHANSPEC_BAND_2G; | |
d3c0b633 | 2027 | else |
7a5c1f64 HM |
2028 | *chanspec |= WL_CHANSPEC_BAND_5G; |
2029 | } | |
2030 | *chanspec |= WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE; | |
2031 | } | |
2032 | ||
2033 | /** | |
2034 | * Change a P2P Role. | |
2035 | * Parameters: | |
2036 | * @mac: MAC address of the BSS to change a role | |
2037 | * Returns 0 if success. | |
2038 | */ | |
2039 | int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg, | |
2040 | enum brcmf_fil_p2p_if_types if_type) | |
2041 | { | |
2042 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2043 | struct brcmf_cfg80211_vif *vif; | |
2044 | struct brcmf_fil_p2p_if_le if_request; | |
2045 | s32 err; | |
2046 | u16 chanspec; | |
2047 | ||
2048 | brcmf_dbg(TRACE, "Enter\n"); | |
2049 | ||
2050 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
2051 | if (!vif) { | |
2052 | brcmf_err("vif for P2PAPI_BSSCFG_PRIMARY does not exist\n"); | |
2053 | return -EPERM; | |
d3c0b633 | 2054 | } |
a0f472ac | 2055 | brcmf_notify_escan_complete(cfg, vif->ifp, true, true); |
7a5c1f64 HM |
2056 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; |
2057 | if (!vif) { | |
2058 | brcmf_err("vif for P2PAPI_BSSCFG_CONNECTION does not exist\n"); | |
2059 | return -EPERM; | |
2060 | } | |
f96aa07e | 2061 | brcmf_set_mpc(vif->ifp, 0); |
7a5c1f64 HM |
2062 | |
2063 | /* In concurrency case, STA may be already associated in a particular */ | |
2064 | /* channel. so retrieve the current channel of primary interface and */ | |
2065 | /* then start the virtual interface on that. */ | |
2066 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
2067 | ||
2068 | if_request.type = cpu_to_le16((u16)if_type); | |
2069 | if_request.chspec = cpu_to_le16(chanspec); | |
2070 | memcpy(if_request.addr, p2p->int_addr, sizeof(if_request.addr)); | |
2071 | ||
2072 | brcmf_cfg80211_arm_vif_event(cfg, vif); | |
2073 | err = brcmf_fil_iovar_data_set(vif->ifp, "p2p_ifupd", &if_request, | |
2074 | sizeof(if_request)); | |
2075 | if (err) { | |
2076 | brcmf_err("p2p_ifupd FAILED, err=%d\n", err); | |
2077 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
2078 | return err; | |
2079 | } | |
2080 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_CHANGE, | |
2081 | msecs_to_jiffies(1500)); | |
2082 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
2083 | if (!err) { | |
2084 | brcmf_err("No BRCMF_E_IF_CHANGE event received\n"); | |
2085 | return -EIO; | |
2086 | } | |
2087 | ||
2088 | err = brcmf_fil_cmd_int_set(vif->ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
2089 | BRCMF_SCB_TIMEOUT_VALUE); | |
2090 | ||
2091 | return err; | |
2092 | } | |
2093 | ||
2094 | static int brcmf_p2p_request_p2p_if(struct brcmf_p2p_info *p2p, | |
2095 | struct brcmf_if *ifp, u8 ea[ETH_ALEN], | |
2096 | enum brcmf_fil_p2p_if_types iftype) | |
2097 | { | |
2098 | struct brcmf_fil_p2p_if_le if_request; | |
2099 | int err; | |
2100 | u16 chanspec; | |
2101 | ||
2102 | /* we need a default channel */ | |
2103 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
d3c0b633 AS |
2104 | |
2105 | /* fill the firmware request */ | |
2106 | memcpy(if_request.addr, ea, ETH_ALEN); | |
7ee2d926 | 2107 | if_request.type = cpu_to_le16((u16)iftype); |
d3c0b633 AS |
2108 | if_request.chspec = cpu_to_le16(chanspec); |
2109 | ||
2110 | err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request, | |
2111 | sizeof(if_request)); | |
2112 | if (err) | |
2113 | return err; | |
2114 | ||
d3c0b633 AS |
2115 | return err; |
2116 | } | |
2117 | ||
5f4f9f11 AS |
2118 | static int brcmf_p2p_disable_p2p_if(struct brcmf_cfg80211_vif *vif) |
2119 | { | |
2120 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
2121 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
2122 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
2123 | u8 *addr = vif->wdev.netdev->dev_addr; | |
2124 | ||
2125 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdis", addr, ETH_ALEN); | |
2126 | } | |
2127 | ||
2128 | static int brcmf_p2p_release_p2p_if(struct brcmf_cfg80211_vif *vif) | |
2129 | { | |
2130 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
2131 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
2132 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
2133 | u8 *addr = vif->wdev.netdev->dev_addr; | |
2134 | ||
2135 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdel", addr, ETH_ALEN); | |
2136 | } | |
2137 | ||
27f10e38 AS |
2138 | /** |
2139 | * brcmf_p2p_create_p2pdev() - create a P2P_DEVICE virtual interface. | |
2140 | * | |
2141 | * @p2p: P2P specific data. | |
2142 | * @wiphy: wiphy device of new interface. | |
2143 | * @addr: mac address for this new interface. | |
2144 | */ | |
2145 | static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p, | |
2146 | struct wiphy *wiphy, | |
2147 | u8 *addr) | |
2148 | { | |
2149 | struct brcmf_cfg80211_vif *p2p_vif; | |
2150 | struct brcmf_if *p2p_ifp; | |
2151 | struct brcmf_if *pri_ifp; | |
2152 | int err; | |
2153 | u32 bssidx; | |
2154 | ||
2155 | if (p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif) | |
2156 | return ERR_PTR(-ENOSPC); | |
2157 | ||
2158 | p2p_vif = brcmf_alloc_vif(p2p->cfg, NL80211_IFTYPE_P2P_DEVICE, | |
2159 | false); | |
2160 | if (IS_ERR(p2p_vif)) { | |
2161 | brcmf_err("could not create discovery vif\n"); | |
2162 | return (struct wireless_dev *)p2p_vif; | |
2163 | } | |
2164 | ||
27f10e38 | 2165 | pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
01b8e7db | 2166 | brcmf_p2p_generate_bss_mac(p2p, addr); |
27f10e38 AS |
2167 | brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr); |
2168 | ||
01b8e7db AS |
2169 | brcmf_cfg80211_arm_vif_event(p2p->cfg, p2p_vif); |
2170 | ||
27f10e38 AS |
2171 | /* Initialize P2P Discovery in the firmware */ |
2172 | err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); | |
2173 | if (err < 0) { | |
2174 | brcmf_err("set p2p_disc error\n"); | |
01b8e7db AS |
2175 | brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL); |
2176 | goto fail; | |
2177 | } | |
2178 | ||
2179 | /* wait for firmware event */ | |
2180 | err = brcmf_cfg80211_wait_vif_event_timeout(p2p->cfg, BRCMF_E_IF_ADD, | |
2181 | msecs_to_jiffies(1500)); | |
2182 | brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL); | |
2183 | if (!err) { | |
2184 | brcmf_err("timeout occurred\n"); | |
2185 | err = -EIO; | |
2186 | goto fail; | |
27f10e38 | 2187 | } |
01b8e7db AS |
2188 | |
2189 | /* discovery interface created */ | |
2190 | p2p_ifp = p2p_vif->ifp; | |
2191 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif; | |
2192 | memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN); | |
2193 | memcpy(&p2p_vif->wdev.address, p2p->dev_addr, sizeof(p2p->dev_addr)); | |
2194 | ||
2195 | /* verify bsscfg index for P2P discovery */ | |
27f10e38 AS |
2196 | err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx); |
2197 | if (err < 0) { | |
2198 | brcmf_err("retrieving discover bsscfg index failed\n"); | |
01b8e7db | 2199 | goto fail; |
27f10e38 AS |
2200 | } |
2201 | ||
01b8e7db | 2202 | WARN_ON(p2p_ifp->bssidx != bssidx); |
27f10e38 AS |
2203 | |
2204 | init_completion(&p2p->send_af_done); | |
2205 | INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler); | |
2206 | init_completion(&p2p->afx_hdl.act_frm_scan); | |
2207 | init_completion(&p2p->wait_next_af); | |
2208 | ||
2209 | return &p2p_vif->wdev; | |
01b8e7db AS |
2210 | |
2211 | fail: | |
2212 | brcmf_free_vif(p2p_vif); | |
2213 | return ERR_PTR(err); | |
27f10e38 AS |
2214 | } |
2215 | ||
2216 | /** | |
2217 | * brcmf_p2p_delete_p2pdev() - delete P2P_DEVICE virtual interface. | |
2218 | * | |
2219 | * @vif: virtual interface object to delete. | |
2220 | */ | |
2221 | static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_vif *vif) | |
2222 | { | |
2223 | struct brcmf_p2p_info *p2p = &vif->ifp->drvr->config->p2p; | |
2224 | ||
2225 | cfg80211_unregister_wdev(&vif->wdev); | |
2226 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; | |
27f10e38 AS |
2227 | brcmf_free_vif(vif); |
2228 | } | |
2229 | ||
9f440b7b AS |
2230 | /** |
2231 | * brcmf_p2p_add_vif() - create a new P2P virtual interface. | |
2232 | * | |
2233 | * @wiphy: wiphy device of new interface. | |
2234 | * @name: name of the new interface. | |
2235 | * @type: nl80211 interface type. | |
27f10e38 AS |
2236 | * @flags: not used. |
2237 | * @params: contains mac address for P2P device. | |
9f440b7b AS |
2238 | */ |
2239 | struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, | |
2240 | enum nl80211_iftype type, u32 *flags, | |
2241 | struct vif_params *params) | |
2242 | { | |
d3c0b633 AS |
2243 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); |
2244 | struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); | |
2245 | struct brcmf_cfg80211_vif *vif; | |
2246 | enum brcmf_fil_p2p_if_types iftype; | |
2247 | enum wl_mode mode; | |
2248 | int err; | |
2249 | ||
2250 | if (brcmf_cfg80211_vif_event_armed(cfg)) | |
2251 | return ERR_PTR(-EBUSY); | |
2252 | ||
9f440b7b | 2253 | brcmf_dbg(INFO, "adding vif \"%s\" (type=%d)\n", name, type); |
d3c0b633 AS |
2254 | |
2255 | switch (type) { | |
2256 | case NL80211_IFTYPE_P2P_CLIENT: | |
2257 | iftype = BRCMF_FIL_P2P_IF_CLIENT; | |
2258 | mode = WL_MODE_BSS; | |
2259 | break; | |
2260 | case NL80211_IFTYPE_P2P_GO: | |
2261 | iftype = BRCMF_FIL_P2P_IF_GO; | |
2262 | mode = WL_MODE_AP; | |
2263 | break; | |
27f10e38 AS |
2264 | case NL80211_IFTYPE_P2P_DEVICE: |
2265 | return brcmf_p2p_create_p2pdev(&cfg->p2p, wiphy, | |
2266 | params->macaddr); | |
d3c0b633 AS |
2267 | default: |
2268 | return ERR_PTR(-EOPNOTSUPP); | |
2269 | } | |
2270 | ||
2271 | vif = brcmf_alloc_vif(cfg, type, false); | |
7ee2d926 HM |
2272 | if (IS_ERR(vif)) |
2273 | return (struct wireless_dev *)vif; | |
d3c0b633 AS |
2274 | brcmf_cfg80211_arm_vif_event(cfg, vif); |
2275 | ||
7a5c1f64 HM |
2276 | err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, cfg->p2p.int_addr, |
2277 | iftype); | |
7ee2d926 HM |
2278 | if (err) { |
2279 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
d3c0b633 | 2280 | goto fail; |
7ee2d926 | 2281 | } |
d3c0b633 AS |
2282 | |
2283 | /* wait for firmware event */ | |
2284 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD, | |
2285 | msecs_to_jiffies(1500)); | |
2286 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
2287 | if (!err) { | |
2288 | brcmf_err("timeout occurred\n"); | |
2289 | err = -EIO; | |
2290 | goto fail; | |
2291 | } | |
2292 | ||
2293 | /* interface created in firmware */ | |
2294 | ifp = vif->ifp; | |
2295 | if (!ifp) { | |
2296 | brcmf_err("no if pointer provided\n"); | |
2297 | err = -ENOENT; | |
7ee2d926 | 2298 | goto fail; |
d3c0b633 AS |
2299 | } |
2300 | ||
2301 | strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1); | |
4b3a89de HM |
2302 | err = brcmf_net_attach(ifp, true); |
2303 | if (err) { | |
2304 | brcmf_err("Registering netdevice failed\n"); | |
2305 | goto fail; | |
2306 | } | |
7ee2d926 HM |
2307 | cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = vif; |
2308 | /* Disable firmware roaming for P2P interface */ | |
2309 | brcmf_fil_iovar_int_set(ifp, "roam_off", 1); | |
2310 | if (iftype == BRCMF_FIL_P2P_IF_GO) { | |
2311 | /* set station timeout for p2p */ | |
2312 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
2313 | BRCMF_SCB_TIMEOUT_VALUE); | |
2314 | } | |
d3c0b633 AS |
2315 | return &ifp->vif->wdev; |
2316 | ||
2317 | fail: | |
2318 | brcmf_free_vif(vif); | |
2319 | return ERR_PTR(err); | |
9f440b7b AS |
2320 | } |
2321 | ||
2322 | /** | |
2323 | * brcmf_p2p_del_vif() - delete a P2P virtual interface. | |
2324 | * | |
2325 | * @wiphy: wiphy device of interface. | |
2326 | * @wdev: wireless device of interface. | |
2327 | * | |
2328 | * TODO: not yet supported. | |
2329 | */ | |
2330 | int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2331 | { | |
d3c0b633 | 2332 | struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); |
6eda4e2c | 2333 | struct brcmf_p2p_info *p2p = &cfg->p2p; |
9f440b7b | 2334 | struct brcmf_cfg80211_vif *vif; |
5f4f9f11 AS |
2335 | unsigned long jiffie_timeout = msecs_to_jiffies(1500); |
2336 | bool wait_for_disable = false; | |
d3c0b633 | 2337 | int err; |
9f440b7b | 2338 | |
5f4f9f11 | 2339 | brcmf_dbg(TRACE, "delete P2P vif\n"); |
9f440b7b | 2340 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); |
d3c0b633 | 2341 | |
5f4f9f11 AS |
2342 | switch (vif->wdev.iftype) { |
2343 | case NL80211_IFTYPE_P2P_CLIENT: | |
2344 | if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state)) | |
2345 | wait_for_disable = true; | |
2346 | break; | |
2347 | ||
2348 | case NL80211_IFTYPE_P2P_GO: | |
2349 | if (!brcmf_p2p_disable_p2p_if(vif)) | |
2350 | wait_for_disable = true; | |
2351 | break; | |
2352 | ||
2353 | case NL80211_IFTYPE_P2P_DEVICE: | |
27f10e38 AS |
2354 | brcmf_p2p_delete_p2pdev(vif); |
2355 | return 0; | |
5f4f9f11 AS |
2356 | default: |
2357 | return -ENOTSUPP; | |
2358 | break; | |
2359 | } | |
2360 | ||
6eda4e2c HM |
2361 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
2362 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
2363 | ||
5f4f9f11 | 2364 | if (wait_for_disable) |
7ee2d926 HM |
2365 | wait_for_completion_timeout(&cfg->vif_disabled, |
2366 | msecs_to_jiffies(500)); | |
5f4f9f11 AS |
2367 | |
2368 | brcmf_vif_clear_mgmt_ies(vif); | |
d3c0b633 AS |
2369 | |
2370 | brcmf_cfg80211_arm_vif_event(cfg, vif); | |
5f4f9f11 | 2371 | err = brcmf_p2p_release_p2p_if(vif); |
7ee2d926 | 2372 | if (!err) { |
5f4f9f11 AS |
2373 | /* wait for firmware event */ |
2374 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_DEL, | |
2375 | jiffie_timeout); | |
7ee2d926 HM |
2376 | if (!err) |
2377 | err = -EIO; | |
2378 | else | |
2379 | err = 0; | |
2380 | } | |
d3c0b633 | 2381 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
5f4f9f11 | 2382 | brcmf_free_vif(vif); |
6eda4e2c | 2383 | p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; |
5f4f9f11 AS |
2384 | |
2385 | return err; | |
9f440b7b | 2386 | } |
27f10e38 AS |
2387 | |
2388 | int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2389 | { | |
2390 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
2391 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2392 | struct brcmf_cfg80211_vif *vif; | |
2393 | int err; | |
2394 | ||
2395 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); | |
2396 | mutex_lock(&cfg->usr_sync); | |
2397 | err = brcmf_p2p_enable_discovery(p2p); | |
2398 | if (!err) | |
2399 | set_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state); | |
2400 | mutex_unlock(&cfg->usr_sync); | |
2401 | return err; | |
2402 | } | |
2403 | ||
2404 | void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2405 | { | |
2406 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
2407 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2408 | struct brcmf_cfg80211_vif *vif; | |
2409 | ||
2410 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); | |
2411 | mutex_lock(&cfg->usr_sync); | |
2412 | (void)brcmf_p2p_deinit_discovery(p2p); | |
2413 | brcmf_abort_scanning(cfg); | |
2414 | clear_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state); | |
2415 | mutex_unlock(&cfg->usr_sync); | |
2416 | } |