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 | 425 | |
9f440b7b AS |
426 | /** |
427 | * brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation. | |
428 | * | |
2fde59d9 HM |
429 | * @ifp: ifp to use for iovars (primary). |
430 | * @p2p_mac: mac address to configure for p2p_da_override | |
9f440b7b | 431 | */ |
2fde59d9 | 432 | static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac) |
9f440b7b | 433 | { |
9f440b7b AS |
434 | s32 ret = 0; |
435 | ||
27f10e38 | 436 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); |
2fde59d9 | 437 | brcmf_fil_iovar_int_set(ifp, "apsta", 1); |
27f10e38 | 438 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); |
9f440b7b AS |
439 | |
440 | /* In case of COB type, firmware has default mac address | |
441 | * After Initializing firmware, we have to set current mac address to | |
442 | * firmware for P2P device address | |
443 | */ | |
2fde59d9 HM |
444 | ret = brcmf_fil_iovar_data_set(ifp, "p2p_da_override", p2p_mac, |
445 | ETH_ALEN); | |
9f440b7b AS |
446 | if (ret) |
447 | brcmf_err("failed to update device address ret %d\n", ret); | |
448 | ||
449 | return ret; | |
450 | } | |
451 | ||
452 | /** | |
453 | * brcmf_p2p_generate_bss_mac() - derive mac addresses for P2P. | |
454 | * | |
455 | * @p2p: P2P specific data. | |
27f10e38 | 456 | * @dev_addr: optional device address. |
9f440b7b | 457 | * |
27f10e38 AS |
458 | * P2P needs mac addresses for P2P device and interface. If no device |
459 | * address it specified, these are derived from the primary net device, ie. | |
460 | * the permanent ethernet address of the device. | |
9f440b7b | 461 | */ |
27f10e38 | 462 | static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr) |
9f440b7b | 463 | { |
2fde59d9 | 464 | struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
27f10e38 AS |
465 | bool local_admin = false; |
466 | ||
467 | if (!dev_addr || is_zero_ether_addr(dev_addr)) { | |
468 | dev_addr = pri_ifp->mac_addr; | |
469 | local_admin = true; | |
470 | } | |
2fde59d9 | 471 | |
9f440b7b AS |
472 | /* Generate the P2P Device Address. This consists of the device's |
473 | * primary MAC address with the locally administered bit set. | |
474 | */ | |
27f10e38 AS |
475 | memcpy(p2p->dev_addr, dev_addr, ETH_ALEN); |
476 | if (local_admin) | |
477 | p2p->dev_addr[0] |= 0x02; | |
9f440b7b AS |
478 | |
479 | /* Generate the P2P Interface Address. If the discovery and connection | |
480 | * BSSCFGs need to simultaneously co-exist, then this address must be | |
481 | * different from the P2P Device Address, but also locally administered. | |
482 | */ | |
483 | memcpy(p2p->int_addr, p2p->dev_addr, ETH_ALEN); | |
27f10e38 | 484 | p2p->int_addr[0] |= 0x02; |
9f440b7b AS |
485 | p2p->int_addr[4] ^= 0x80; |
486 | } | |
487 | ||
488 | /** | |
489 | * brcmf_p2p_scan_is_p2p_request() - is cfg80211 scan request a P2P scan. | |
490 | * | |
491 | * @request: the scan request as received from cfg80211. | |
492 | * | |
493 | * returns true if one of the ssids in the request matches the | |
494 | * P2P wildcard ssid; otherwise returns false. | |
495 | */ | |
496 | static bool brcmf_p2p_scan_is_p2p_request(struct cfg80211_scan_request *request) | |
497 | { | |
498 | struct cfg80211_ssid *ssids = request->ssids; | |
499 | int i; | |
500 | ||
501 | for (i = 0; i < request->n_ssids; i++) { | |
502 | if (ssids[i].ssid_len != BRCMF_P2P_WILDCARD_SSID_LEN) | |
503 | continue; | |
504 | ||
505 | brcmf_dbg(INFO, "comparing ssid \"%s\"", ssids[i].ssid); | |
506 | if (!memcmp(BRCMF_P2P_WILDCARD_SSID, ssids[i].ssid, | |
507 | BRCMF_P2P_WILDCARD_SSID_LEN)) | |
508 | return true; | |
509 | } | |
510 | return false; | |
511 | } | |
512 | ||
513 | /** | |
514 | * brcmf_p2p_set_discover_state - set discover state in firmware. | |
515 | * | |
516 | * @ifp: low-level interface object. | |
517 | * @state: discover state to set. | |
518 | * @chanspec: channel parameters (for state @WL_P2P_DISC_ST_LISTEN only). | |
519 | * @listen_ms: duration to listen (for state @WL_P2P_DISC_ST_LISTEN only). | |
520 | */ | |
521 | static s32 brcmf_p2p_set_discover_state(struct brcmf_if *ifp, u8 state, | |
522 | u16 chanspec, u16 listen_ms) | |
523 | { | |
524 | struct brcmf_p2p_disc_st_le discover_state; | |
525 | s32 ret = 0; | |
526 | brcmf_dbg(TRACE, "enter\n"); | |
527 | ||
528 | discover_state.state = state; | |
529 | discover_state.chspec = cpu_to_le16(chanspec); | |
530 | discover_state.dwell = cpu_to_le16(listen_ms); | |
531 | ret = brcmf_fil_bsscfg_data_set(ifp, "p2p_state", &discover_state, | |
532 | sizeof(discover_state)); | |
533 | return ret; | |
534 | } | |
535 | ||
9f440b7b AS |
536 | /** |
537 | * brcmf_p2p_deinit_discovery() - disable P2P device discovery. | |
538 | * | |
539 | * @p2p: P2P specific data. | |
540 | * | |
2fde59d9 | 541 | * Resets the discovery state and disables it in firmware. |
9f440b7b AS |
542 | */ |
543 | static s32 brcmf_p2p_deinit_discovery(struct brcmf_p2p_info *p2p) | |
544 | { | |
2fde59d9 | 545 | struct brcmf_cfg80211_vif *vif; |
9f440b7b | 546 | |
2fde59d9 | 547 | brcmf_dbg(TRACE, "enter\n"); |
9f440b7b AS |
548 | |
549 | /* Set the discovery state to SCAN */ | |
2fde59d9 HM |
550 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
551 | (void)brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
9f440b7b AS |
552 | |
553 | /* Disable P2P discovery in the firmware */ | |
2fde59d9 HM |
554 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; |
555 | (void)brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 0); | |
9f440b7b AS |
556 | |
557 | return 0; | |
558 | } | |
559 | ||
560 | /** | |
561 | * brcmf_p2p_enable_discovery() - initialize and configure discovery. | |
562 | * | |
563 | * @p2p: P2P specific data. | |
9f440b7b AS |
564 | * |
565 | * Initializes the discovery device and configure the virtual interface. | |
566 | */ | |
0de8aace | 567 | static int brcmf_p2p_enable_discovery(struct brcmf_p2p_info *p2p) |
9f440b7b AS |
568 | { |
569 | struct brcmf_cfg80211_vif *vif; | |
570 | s32 ret = 0; | |
571 | ||
572 | brcmf_dbg(TRACE, "enter\n"); | |
573 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
2fde59d9 HM |
574 | if (!vif) { |
575 | brcmf_err("P2P config device not available\n"); | |
576 | ret = -EPERM; | |
0de8aace | 577 | goto exit; |
9f440b7b AS |
578 | } |
579 | ||
2fde59d9 HM |
580 | if (test_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status)) { |
581 | brcmf_dbg(INFO, "P2P config device already configured\n"); | |
9f440b7b AS |
582 | goto exit; |
583 | } | |
584 | ||
2fde59d9 HM |
585 | /* Re-initialize P2P Discovery in the firmware */ |
586 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
587 | ret = brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 1); | |
588 | if (ret < 0) { | |
589 | brcmf_err("set p2p_disc error\n"); | |
590 | goto exit; | |
591 | } | |
9f440b7b | 592 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
2fde59d9 HM |
593 | ret = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); |
594 | if (ret < 0) { | |
595 | brcmf_err("unable to set WL_P2P_DISC_ST_SCAN\n"); | |
596 | goto exit; | |
597 | } | |
9f440b7b AS |
598 | |
599 | /* | |
600 | * Set wsec to any non-zero value in the discovery bsscfg | |
601 | * to ensure our P2P probe responses have the privacy bit | |
602 | * set in the 802.11 WPA IE. Some peer devices may not | |
603 | * initiate WPS with us if this bit is not set. | |
604 | */ | |
605 | ret = brcmf_fil_bsscfg_int_set(vif->ifp, "wsec", AES_ENABLED); | |
2fde59d9 | 606 | if (ret < 0) { |
9f440b7b | 607 | brcmf_err("wsec error %d\n", ret); |
2fde59d9 HM |
608 | goto exit; |
609 | } | |
9f440b7b | 610 | |
2fde59d9 | 611 | set_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status); |
9f440b7b AS |
612 | exit: |
613 | return ret; | |
614 | } | |
615 | ||
0de8aace | 616 | /** |
9f440b7b AS |
617 | * brcmf_p2p_escan() - initiate a P2P scan. |
618 | * | |
619 | * @p2p: P2P specific data. | |
620 | * @num_chans: number of channels to scan. | |
621 | * @chanspecs: channel parameters for @num_chans channels. | |
622 | * @search_state: P2P discover state to use. | |
623 | * @action: scan action to pass to firmware. | |
624 | * @bss_type: type of P2P bss. | |
625 | */ | |
626 | static s32 brcmf_p2p_escan(struct brcmf_p2p_info *p2p, u32 num_chans, | |
627 | u16 chanspecs[], s32 search_state, u16 action, | |
628 | enum p2p_bss_type bss_type) | |
629 | { | |
630 | s32 ret = 0; | |
631 | s32 memsize = offsetof(struct brcmf_p2p_scan_le, | |
632 | eparams.params_le.channel_list); | |
633 | s32 nprobes; | |
634 | s32 active; | |
635 | u32 i; | |
636 | u8 *memblk; | |
637 | struct brcmf_cfg80211_vif *vif; | |
638 | struct brcmf_p2p_scan_le *p2p_params; | |
639 | struct brcmf_scan_params_le *sparams; | |
640 | struct brcmf_ssid ssid; | |
641 | ||
9f440b7b AS |
642 | memsize += num_chans * sizeof(__le16); |
643 | memblk = kzalloc(memsize, GFP_KERNEL); | |
644 | if (!memblk) | |
645 | return -ENOMEM; | |
646 | ||
647 | vif = p2p->bss_idx[bss_type].vif; | |
648 | if (vif == NULL) { | |
649 | brcmf_err("no vif for bss type %d\n", bss_type); | |
650 | ret = -EINVAL; | |
651 | goto exit; | |
652 | } | |
653 | ||
654 | switch (search_state) { | |
655 | case WL_P2P_DISC_ST_SEARCH: | |
656 | /* | |
657 | * If we in SEARCH STATE, we don't need to set SSID explictly | |
658 | * because dongle use P2P WILDCARD internally by default | |
659 | */ | |
660 | /* use null ssid */ | |
661 | ssid.SSID_len = 0; | |
662 | memset(ssid.SSID, 0, sizeof(ssid.SSID)); | |
663 | break; | |
664 | case WL_P2P_DISC_ST_SCAN: | |
665 | /* | |
666 | * wpa_supplicant has p2p_find command with type social or | |
667 | * progressive. For progressive, we need to set the ssid to | |
668 | * P2P WILDCARD because we just do broadcast scan unless | |
669 | * setting SSID. | |
670 | */ | |
671 | ssid.SSID_len = BRCMF_P2P_WILDCARD_SSID_LEN; | |
672 | memcpy(ssid.SSID, BRCMF_P2P_WILDCARD_SSID, ssid.SSID_len); | |
673 | break; | |
674 | default: | |
675 | brcmf_err(" invalid search state %d\n", search_state); | |
676 | ret = -EINVAL; | |
677 | goto exit; | |
678 | } | |
679 | ||
680 | brcmf_p2p_set_discover_state(vif->ifp, search_state, 0, 0); | |
681 | ||
682 | /* | |
683 | * set p2p scan parameters. | |
684 | */ | |
685 | p2p_params = (struct brcmf_p2p_scan_le *)memblk; | |
686 | p2p_params->type = 'E'; | |
687 | ||
688 | /* determine the scan engine parameters */ | |
689 | sparams = &p2p_params->eparams.params_le; | |
690 | sparams->bss_type = DOT11_BSSTYPE_ANY; | |
691 | if (p2p->cfg->active_scan) | |
692 | sparams->scan_type = 0; | |
693 | else | |
694 | sparams->scan_type = 1; | |
695 | ||
696 | memset(&sparams->bssid, 0xFF, ETH_ALEN); | |
697 | if (ssid.SSID_len) | |
698 | memcpy(sparams->ssid_le.SSID, ssid.SSID, ssid.SSID_len); | |
699 | sparams->ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len); | |
700 | sparams->home_time = cpu_to_le32(P2PAPI_SCAN_HOME_TIME_MS); | |
701 | ||
702 | /* | |
703 | * SOCIAL_CHAN_CNT + 1 takes care of the Progressive scan | |
704 | * supported by the supplicant. | |
705 | */ | |
706 | if (num_chans == SOCIAL_CHAN_CNT || num_chans == (SOCIAL_CHAN_CNT + 1)) | |
707 | active = P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS; | |
708 | else if (num_chans == AF_PEER_SEARCH_CNT) | |
709 | active = P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS; | |
710 | else if (wl_get_vif_state_all(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED)) | |
711 | active = -1; | |
712 | else | |
713 | active = P2PAPI_SCAN_DWELL_TIME_MS; | |
714 | ||
715 | /* Override scan params to find a peer for a connection */ | |
716 | if (num_chans == 1) { | |
717 | active = WL_SCAN_CONNECT_DWELL_TIME_MS; | |
18e2f61d | 718 | /* WAR to sync with presence period of VSDB GO. |
9f440b7b AS |
719 | * send probe request more frequently |
720 | */ | |
721 | nprobes = active / WL_SCAN_JOIN_PROBE_INTERVAL_MS; | |
722 | } else { | |
723 | nprobes = active / P2PAPI_SCAN_NPROBS_TIME_MS; | |
724 | } | |
725 | ||
726 | if (nprobes <= 0) | |
727 | nprobes = 1; | |
728 | ||
729 | brcmf_dbg(INFO, "nprobes # %d, active_time %d\n", nprobes, active); | |
730 | sparams->active_time = cpu_to_le32(active); | |
731 | sparams->nprobes = cpu_to_le32(nprobes); | |
732 | sparams->passive_time = cpu_to_le32(-1); | |
733 | sparams->channel_num = cpu_to_le32(num_chans & | |
734 | BRCMF_SCAN_PARAMS_COUNT_MASK); | |
735 | for (i = 0; i < num_chans; i++) | |
736 | sparams->channel_list[i] = cpu_to_le16(chanspecs[i]); | |
737 | ||
738 | /* set the escan specific parameters */ | |
739 | p2p_params->eparams.version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION); | |
740 | p2p_params->eparams.action = cpu_to_le16(action); | |
741 | p2p_params->eparams.sync_id = cpu_to_le16(0x1234); | |
742 | /* perform p2p scan on primary device */ | |
743 | ret = brcmf_fil_bsscfg_data_set(vif->ifp, "p2p_scan", memblk, memsize); | |
744 | if (!ret) | |
745 | set_bit(BRCMF_SCAN_STATUS_BUSY, &p2p->cfg->scan_status); | |
746 | exit: | |
747 | kfree(memblk); | |
748 | return ret; | |
749 | } | |
750 | ||
751 | /** | |
752 | * brcmf_p2p_run_escan() - escan callback for peer-to-peer. | |
753 | * | |
754 | * @cfg: driver private data for cfg80211 interface. | |
755 | * @ndev: net device for which scan is requested. | |
756 | * @request: scan request from cfg80211. | |
757 | * @action: scan action. | |
758 | * | |
759 | * Determines the P2P discovery state based to scan request parameters and | |
760 | * validates the channels in the request. | |
761 | */ | |
762 | static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg, | |
a0f472ac | 763 | struct brcmf_if *ifp, |
9f440b7b AS |
764 | struct cfg80211_scan_request *request, |
765 | u16 action) | |
766 | { | |
767 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
768 | s32 err = 0; | |
769 | s32 search_state = WL_P2P_DISC_ST_SCAN; | |
770 | struct brcmf_cfg80211_vif *vif; | |
771 | struct net_device *dev = NULL; | |
772 | int i, num_nodfs = 0; | |
773 | u16 *chanspecs; | |
774 | ||
775 | brcmf_dbg(TRACE, "enter\n"); | |
776 | ||
777 | if (!request) { | |
778 | err = -EINVAL; | |
779 | goto exit; | |
780 | } | |
781 | ||
782 | if (request->n_channels) { | |
783 | chanspecs = kcalloc(request->n_channels, sizeof(*chanspecs), | |
784 | GFP_KERNEL); | |
785 | if (!chanspecs) { | |
786 | err = -ENOMEM; | |
787 | goto exit; | |
788 | } | |
789 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; | |
790 | if (vif) | |
791 | dev = vif->wdev.netdev; | |
792 | if (request->n_channels == 3 && | |
793 | request->channels[0]->hw_value == SOCIAL_CHAN_1 && | |
794 | request->channels[1]->hw_value == SOCIAL_CHAN_2 && | |
795 | request->channels[2]->hw_value == SOCIAL_CHAN_3) { | |
796 | /* SOCIAL CHANNELS 1, 6, 11 */ | |
797 | search_state = WL_P2P_DISC_ST_SEARCH; | |
798 | brcmf_dbg(INFO, "P2P SEARCH PHASE START\n"); | |
799 | } else if (dev != NULL && vif->mode == WL_MODE_AP) { | |
800 | /* If you are already a GO, then do SEARCH only */ | |
801 | brcmf_dbg(INFO, "Already a GO. Do SEARCH Only\n"); | |
802 | search_state = WL_P2P_DISC_ST_SEARCH; | |
803 | } else { | |
804 | brcmf_dbg(INFO, "P2P SCAN STATE START\n"); | |
805 | } | |
806 | ||
807 | /* | |
808 | * no P2P scanning on passive or DFS channels. | |
809 | */ | |
810 | for (i = 0; i < request->n_channels; i++) { | |
811 | struct ieee80211_channel *chan = request->channels[i]; | |
812 | ||
813 | if (chan->flags & (IEEE80211_CHAN_RADAR | | |
814 | IEEE80211_CHAN_PASSIVE_SCAN)) | |
815 | continue; | |
816 | ||
83cf17aa FL |
817 | chanspecs[i] = channel_to_chanspec(&p2p->cfg->d11inf, |
818 | chan); | |
9f440b7b AS |
819 | brcmf_dbg(INFO, "%d: chan=%d, channel spec=%x\n", |
820 | num_nodfs, chan->hw_value, chanspecs[i]); | |
821 | num_nodfs++; | |
822 | } | |
823 | err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state, | |
824 | action, P2PAPI_BSSCFG_DEVICE); | |
825 | } | |
826 | exit: | |
827 | if (err) | |
828 | brcmf_err("error (%d)\n", err); | |
829 | return err; | |
830 | } | |
831 | ||
6eda4e2c HM |
832 | |
833 | /** | |
834 | * brcmf_p2p_find_listen_channel() - find listen channel in ie string. | |
835 | * | |
836 | * @ie: string of information elements. | |
837 | * @ie_len: length of string. | |
838 | * | |
839 | * Scan ie for p2p ie and look for attribute 6 channel. If available determine | |
840 | * channel and return it. | |
841 | */ | |
842 | static s32 brcmf_p2p_find_listen_channel(const u8 *ie, u32 ie_len) | |
843 | { | |
844 | u8 channel_ie[5]; | |
845 | s32 listen_channel; | |
846 | s32 err; | |
847 | ||
848 | err = cfg80211_get_p2p_attr(ie, ie_len, | |
849 | IEEE80211_P2P_ATTR_LISTEN_CHANNEL, | |
850 | channel_ie, sizeof(channel_ie)); | |
851 | if (err < 0) | |
852 | return err; | |
853 | ||
854 | /* listen channel subel length format: */ | |
855 | /* 3(country) + 1(op. class) + 1(chan num) */ | |
856 | listen_channel = (s32)channel_ie[3 + 1]; | |
857 | ||
858 | if (listen_channel == SOCIAL_CHAN_1 || | |
859 | listen_channel == SOCIAL_CHAN_2 || | |
860 | listen_channel == SOCIAL_CHAN_3) { | |
861 | brcmf_dbg(INFO, "Found my Listen Channel %d\n", listen_channel); | |
862 | return listen_channel; | |
863 | } | |
864 | ||
865 | return -EPERM; | |
866 | } | |
867 | ||
868 | ||
9f440b7b AS |
869 | /** |
870 | * brcmf_p2p_scan_prep() - prepare scan based on request. | |
871 | * | |
872 | * @wiphy: wiphy device. | |
873 | * @request: scan request from cfg80211. | |
0f8ffe17 | 874 | * @vif: vif on which scan request is to be executed. |
9f440b7b AS |
875 | * |
876 | * Prepare the scan appropriately for type of scan requested. Overrides the | |
877 | * escan .run() callback for peer-to-peer scanning. | |
878 | */ | |
879 | int brcmf_p2p_scan_prep(struct wiphy *wiphy, | |
0f8ffe17 HM |
880 | struct cfg80211_scan_request *request, |
881 | struct brcmf_cfg80211_vif *vif) | |
9f440b7b AS |
882 | { |
883 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
884 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
885 | int err = 0; | |
886 | ||
887 | if (brcmf_p2p_scan_is_p2p_request(request)) { | |
888 | /* find my listen channel */ | |
6eda4e2c HM |
889 | err = brcmf_p2p_find_listen_channel(request->ie, |
890 | request->ie_len); | |
9f440b7b AS |
891 | if (err < 0) |
892 | return err; | |
893 | ||
6eda4e2c HM |
894 | p2p->afx_hdl.my_listen_chan = err; |
895 | ||
9f440b7b AS |
896 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
897 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
898 | ||
0de8aace | 899 | err = brcmf_p2p_enable_discovery(p2p); |
0f8ffe17 HM |
900 | if (err) |
901 | return err; | |
9f440b7b | 902 | |
0f8ffe17 | 903 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
9f440b7b | 904 | |
0f8ffe17 HM |
905 | /* override .run_escan() callback. */ |
906 | cfg->escan_info.run = brcmf_p2p_run_escan; | |
9f440b7b | 907 | } |
0f8ffe17 HM |
908 | err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBREQ_FLAG, |
909 | request->ie, request->ie_len); | |
9f440b7b AS |
910 | return err; |
911 | } | |
912 | ||
0de8aace | 913 | |
f2058dde HM |
914 | /** |
915 | * brcmf_p2p_discover_listen() - set firmware to discover listen state. | |
916 | * | |
917 | * @p2p: p2p device. | |
6eda4e2c HM |
918 | * @channel: channel nr for discover listen. |
919 | * @duration: time in ms to stay on channel. | |
f2058dde HM |
920 | * |
921 | */ | |
922 | static s32 | |
6eda4e2c | 923 | brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration) |
f2058dde HM |
924 | { |
925 | struct brcmf_cfg80211_vif *vif; | |
83cf17aa | 926 | struct brcmu_chan ch; |
f2058dde | 927 | s32 err = 0; |
f2058dde HM |
928 | |
929 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
930 | if (!vif) { | |
931 | brcmf_err("Discovery is not set, so we have nothing to do\n"); | |
932 | err = -EPERM; | |
933 | goto exit; | |
934 | } | |
935 | ||
936 | if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status)) { | |
937 | brcmf_err("Previous LISTEN is not completed yet\n"); | |
938 | /* WAR: prevent cookie mismatch in wpa_supplicant return OK */ | |
939 | goto exit; | |
940 | } | |
941 | ||
83cf17aa FL |
942 | ch.chnum = channel; |
943 | ch.bw = BRCMU_CHAN_BW_20; | |
944 | p2p->cfg->d11inf.encchspec(&ch); | |
f2058dde | 945 | err = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_LISTEN, |
83cf17aa | 946 | ch.chspec, (u16)duration); |
f2058dde HM |
947 | if (!err) { |
948 | set_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status); | |
949 | p2p->remain_on_channel_cookie++; | |
950 | } | |
951 | exit: | |
952 | return err; | |
953 | } | |
954 | ||
955 | ||
0de8aace HM |
956 | /** |
957 | * brcmf_p2p_remain_on_channel() - put device on channel and stay there. | |
958 | * | |
959 | * @wiphy: wiphy device. | |
960 | * @channel: channel to stay on. | |
961 | * @duration: time in ms to remain on channel. | |
962 | * | |
963 | */ | |
964 | int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, | |
965 | struct ieee80211_channel *channel, | |
966 | unsigned int duration, u64 *cookie) | |
967 | { | |
968 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
969 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
0de8aace | 970 | s32 err; |
6eda4e2c | 971 | u16 channel_nr; |
0de8aace | 972 | |
6eda4e2c HM |
973 | channel_nr = ieee80211_frequency_to_channel(channel->center_freq); |
974 | brcmf_dbg(TRACE, "Enter, channel: %d, duration ms (%d)\n", channel_nr, | |
0de8aace HM |
975 | duration); |
976 | ||
0de8aace HM |
977 | err = brcmf_p2p_enable_discovery(p2p); |
978 | if (err) | |
979 | goto exit; | |
6eda4e2c | 980 | err = brcmf_p2p_discover_listen(p2p, channel_nr, duration); |
0de8aace HM |
981 | if (err) |
982 | goto exit; | |
983 | ||
f2058dde HM |
984 | memcpy(&p2p->remain_on_channel, channel, sizeof(*channel)); |
985 | *cookie = p2p->remain_on_channel_cookie; | |
1ce3086c | 986 | cfg80211_ready_on_channel(wdev, *cookie, channel, duration, GFP_KERNEL); |
0de8aace HM |
987 | |
988 | exit: | |
0de8aace HM |
989 | return err; |
990 | } | |
991 | ||
992 | ||
993 | /** | |
994 | * brcmf_p2p_notify_listen_complete() - p2p listen has completed. | |
995 | * | |
996 | * @ifp: interfac control. | |
997 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
998 | * @data: payload of message. Not used. | |
999 | * | |
1000 | */ | |
1001 | int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp, | |
1002 | const struct brcmf_event_msg *e, | |
1003 | void *data) | |
1004 | { | |
1005 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1006 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1007 | ||
1008 | brcmf_dbg(TRACE, "Enter\n"); | |
f2058dde | 1009 | if (test_and_clear_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, |
6eda4e2c HM |
1010 | &p2p->status)) { |
1011 | if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1012 | &p2p->status)) { | |
1013 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1014 | &p2p->status); | |
1015 | brcmf_dbg(INFO, "Listen DONE, wake up wait_next_af\n"); | |
1016 | complete(&p2p->wait_next_af); | |
1017 | } | |
1018 | ||
f2058dde HM |
1019 | cfg80211_remain_on_channel_expired(&ifp->vif->wdev, |
1020 | p2p->remain_on_channel_cookie, | |
0de8aace HM |
1021 | &p2p->remain_on_channel, |
1022 | GFP_KERNEL); | |
6eda4e2c | 1023 | } |
0de8aace HM |
1024 | return 0; |
1025 | } | |
1026 | ||
1027 | ||
1028 | /** | |
1029 | * brcmf_p2p_cancel_remain_on_channel() - cancel p2p listen state. | |
1030 | * | |
1031 | * @ifp: interfac control. | |
1032 | * | |
1033 | */ | |
1034 | void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp) | |
1035 | { | |
1036 | if (!ifp) | |
1037 | return; | |
1038 | brcmf_p2p_set_discover_state(ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
1039 | brcmf_p2p_notify_listen_complete(ifp, NULL, NULL); | |
1040 | } | |
1041 | ||
1042 | ||
6eda4e2c HM |
1043 | /** |
1044 | * brcmf_p2p_act_frm_search() - search function for action frame. | |
1045 | * | |
1046 | * @p2p: p2p device. | |
1047 | * channel: channel on which action frame is to be trasmitted. | |
1048 | * | |
1049 | * search function to reach at common channel to send action frame. When | |
1050 | * channel is 0 then all social channels will be used to send af | |
1051 | */ | |
1052 | static s32 brcmf_p2p_act_frm_search(struct brcmf_p2p_info *p2p, u16 channel) | |
1053 | { | |
1054 | s32 err; | |
1055 | u32 channel_cnt; | |
1056 | u16 *default_chan_list; | |
1057 | u32 i; | |
83cf17aa | 1058 | struct brcmu_chan ch; |
6eda4e2c HM |
1059 | |
1060 | brcmf_dbg(TRACE, "Enter\n"); | |
1061 | ||
1062 | if (channel) | |
1063 | channel_cnt = AF_PEER_SEARCH_CNT; | |
1064 | else | |
1065 | channel_cnt = SOCIAL_CHAN_CNT; | |
1066 | default_chan_list = kzalloc(channel_cnt * sizeof(*default_chan_list), | |
1067 | GFP_KERNEL); | |
1068 | if (default_chan_list == NULL) { | |
1069 | brcmf_err("channel list allocation failed\n"); | |
1070 | err = -ENOMEM; | |
1071 | goto exit; | |
1072 | } | |
83cf17aa | 1073 | ch.bw = BRCMU_CHAN_BW_20; |
6eda4e2c | 1074 | if (channel) { |
83cf17aa FL |
1075 | ch.chnum = channel; |
1076 | p2p->cfg->d11inf.encchspec(&ch); | |
6eda4e2c HM |
1077 | /* insert same channel to the chan_list */ |
1078 | for (i = 0; i < channel_cnt; i++) | |
83cf17aa | 1079 | default_chan_list[i] = ch.chspec; |
6eda4e2c | 1080 | } else { |
83cf17aa FL |
1081 | ch.chnum = SOCIAL_CHAN_1; |
1082 | p2p->cfg->d11inf.encchspec(&ch); | |
1083 | default_chan_list[0] = ch.chspec; | |
1084 | ch.chnum = SOCIAL_CHAN_2; | |
1085 | p2p->cfg->d11inf.encchspec(&ch); | |
1086 | default_chan_list[1] = ch.chspec; | |
1087 | ch.chnum = SOCIAL_CHAN_3; | |
1088 | p2p->cfg->d11inf.encchspec(&ch); | |
1089 | default_chan_list[2] = ch.chspec; | |
6eda4e2c HM |
1090 | } |
1091 | err = brcmf_p2p_escan(p2p, channel_cnt, default_chan_list, | |
1092 | WL_P2P_DISC_ST_SEARCH, WL_ESCAN_ACTION_START, | |
1093 | P2PAPI_BSSCFG_DEVICE); | |
1094 | kfree(default_chan_list); | |
1095 | exit: | |
1096 | return err; | |
1097 | } | |
1098 | ||
1099 | ||
1100 | /** | |
1101 | * brcmf_p2p_afx_handler() - afx worker thread. | |
1102 | * | |
1103 | * @work: | |
1104 | * | |
1105 | */ | |
1106 | static void brcmf_p2p_afx_handler(struct work_struct *work) | |
1107 | { | |
1108 | struct afx_hdl *afx_hdl = container_of(work, struct afx_hdl, afx_work); | |
1109 | struct brcmf_p2p_info *p2p = container_of(afx_hdl, | |
1110 | struct brcmf_p2p_info, | |
1111 | afx_hdl); | |
1112 | s32 err; | |
1113 | ||
1114 | if (!afx_hdl->is_active) | |
1115 | return; | |
1116 | ||
1117 | if (afx_hdl->is_listen && afx_hdl->my_listen_chan) | |
1118 | /* 100ms ~ 300ms */ | |
1119 | err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan, | |
e00adf39 | 1120 | 100 * (1 + prandom_u32() % 3)); |
6eda4e2c HM |
1121 | else |
1122 | err = brcmf_p2p_act_frm_search(p2p, afx_hdl->peer_listen_chan); | |
1123 | ||
1124 | if (err) { | |
1125 | brcmf_err("ERROR occurred! value is (%d)\n", err); | |
1126 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1127 | &p2p->status)) | |
1128 | complete(&afx_hdl->act_frm_scan); | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | ||
1133 | /** | |
1134 | * brcmf_p2p_af_searching_channel() - search channel. | |
1135 | * | |
1136 | * @p2p: p2p device info struct. | |
1137 | * | |
1138 | */ | |
1139 | static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p) | |
1140 | { | |
1141 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
1142 | struct brcmf_cfg80211_vif *pri_vif; | |
1143 | unsigned long duration; | |
1144 | s32 retry; | |
1145 | ||
1146 | brcmf_dbg(TRACE, "Enter\n"); | |
1147 | ||
1148 | pri_vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
1149 | ||
1150 | INIT_COMPLETION(afx_hdl->act_frm_scan); | |
1151 | set_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status); | |
1152 | afx_hdl->is_active = true; | |
1153 | afx_hdl->peer_chan = P2P_INVALID_CHANNEL; | |
1154 | ||
1155 | /* Loop to wait until we find a peer's channel or the | |
1156 | * pending action frame tx is cancelled. | |
1157 | */ | |
1158 | retry = 0; | |
1159 | duration = msecs_to_jiffies(P2P_AF_FRM_SCAN_MAX_WAIT); | |
1160 | while ((retry < P2P_CHANNEL_SYNC_RETRY) && | |
1161 | (afx_hdl->peer_chan == P2P_INVALID_CHANNEL)) { | |
1162 | afx_hdl->is_listen = false; | |
1163 | brcmf_dbg(TRACE, "Scheduling action frame for sending.. (%d)\n", | |
1164 | retry); | |
1165 | /* search peer on peer's listen channel */ | |
1166 | schedule_work(&afx_hdl->afx_work); | |
1167 | wait_for_completion_timeout(&afx_hdl->act_frm_scan, duration); | |
1168 | if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) || | |
1169 | (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1170 | &p2p->status))) | |
1171 | break; | |
1172 | ||
1173 | if (afx_hdl->my_listen_chan) { | |
1174 | brcmf_dbg(TRACE, "Scheduling listen peer, channel=%d\n", | |
1175 | afx_hdl->my_listen_chan); | |
1176 | /* listen on my listen channel */ | |
1177 | afx_hdl->is_listen = true; | |
1178 | schedule_work(&afx_hdl->afx_work); | |
1179 | wait_for_completion_timeout(&afx_hdl->act_frm_scan, | |
1180 | duration); | |
1181 | } | |
1182 | if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) || | |
1183 | (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1184 | &p2p->status))) | |
1185 | break; | |
1186 | retry++; | |
1187 | ||
1188 | /* if sta is connected or connecting, sleep for a while before | |
1189 | * retry af tx or finding a peer | |
1190 | */ | |
1191 | if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &pri_vif->sme_state) || | |
1192 | test_bit(BRCMF_VIF_STATUS_CONNECTING, &pri_vif->sme_state)) | |
1193 | msleep(P2P_DEFAULT_SLEEP_TIME_VSDB); | |
1194 | } | |
1195 | ||
1196 | brcmf_dbg(TRACE, "Completed search/listen peer_chan=%d\n", | |
1197 | afx_hdl->peer_chan); | |
1198 | afx_hdl->is_active = false; | |
1199 | ||
1200 | clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status); | |
1201 | ||
1202 | return afx_hdl->peer_chan; | |
1203 | } | |
1204 | ||
1205 | ||
1206 | /** | |
1207 | * brcmf_p2p_scan_finding_common_channel() - was escan used for finding channel | |
1208 | * | |
1209 | * @cfg: common configuration struct. | |
1210 | * @bi: bss info struct, result from scan. | |
1211 | * | |
1212 | */ | |
1213 | bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg, | |
1214 | struct brcmf_bss_info_le *bi) | |
1215 | ||
1216 | { | |
1217 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1218 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
83cf17aa | 1219 | struct brcmu_chan ch; |
6eda4e2c HM |
1220 | u8 *ie; |
1221 | s32 err; | |
1222 | u8 p2p_dev_addr[ETH_ALEN]; | |
1223 | ||
1224 | if (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status)) | |
1225 | return false; | |
1226 | ||
1227 | if (bi == NULL) { | |
1228 | brcmf_dbg(TRACE, "ACTION FRAME SCAN Done\n"); | |
1229 | if (afx_hdl->peer_chan == P2P_INVALID_CHANNEL) | |
1230 | complete(&afx_hdl->act_frm_scan); | |
1231 | return true; | |
1232 | } | |
1233 | ||
1234 | ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); | |
1235 | memset(p2p_dev_addr, 0, sizeof(p2p_dev_addr)); | |
1236 | err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length), | |
1237 | IEEE80211_P2P_ATTR_DEVICE_INFO, | |
1238 | p2p_dev_addr, sizeof(p2p_dev_addr)); | |
1239 | if (err < 0) | |
1240 | err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length), | |
1241 | IEEE80211_P2P_ATTR_DEVICE_ID, | |
1242 | p2p_dev_addr, sizeof(p2p_dev_addr)); | |
1243 | if ((err >= 0) && | |
1244 | (!memcmp(p2p_dev_addr, afx_hdl->tx_dst_addr, ETH_ALEN))) { | |
83cf17aa FL |
1245 | if (!bi->ctl_ch) { |
1246 | ch.chspec = le16_to_cpu(bi->chanspec); | |
1247 | cfg->d11inf.decchspec(&ch); | |
1248 | bi->ctl_ch = ch.chnum; | |
1249 | } | |
1250 | afx_hdl->peer_chan = bi->ctl_ch; | |
6eda4e2c HM |
1251 | brcmf_dbg(TRACE, "ACTION FRAME SCAN : Peer %pM found, channel : %d\n", |
1252 | afx_hdl->tx_dst_addr, afx_hdl->peer_chan); | |
1253 | complete(&afx_hdl->act_frm_scan); | |
1254 | } | |
1255 | return true; | |
1256 | } | |
1257 | ||
1258 | /** | |
1259 | * brcmf_p2p_stop_wait_next_action_frame() - finish scan if af tx complete. | |
1260 | * | |
1261 | * @cfg: common configuration struct. | |
1262 | * | |
1263 | */ | |
1264 | static void | |
1265 | brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg) | |
1266 | { | |
1267 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
a0f472ac | 1268 | struct brcmf_if *ifp = cfg->escan_info.ifp; |
6eda4e2c HM |
1269 | |
1270 | if (test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status) && | |
1271 | (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status) || | |
1272 | test_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status))) { | |
1273 | brcmf_dbg(TRACE, "*** Wake UP ** abort actframe iovar\n"); | |
1274 | /* if channel is not zero, "actfame" uses off channel scan. | |
1275 | * So abort scan for off channel completion. | |
1276 | */ | |
1277 | if (p2p->af_sent_channel) | |
a0f472ac | 1278 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1279 | } else if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, |
1280 | &p2p->status)) { | |
1281 | brcmf_dbg(TRACE, "*** Wake UP ** abort listen for next af frame\n"); | |
1282 | /* So abort scan to cancel listen */ | |
a0f472ac | 1283 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1284 | } |
1285 | } | |
1286 | ||
1287 | ||
1288 | /** | |
1289 | * brcmf_p2p_gon_req_collision() - Check if go negotiaton collission | |
1290 | * | |
1291 | * @p2p: p2p device info struct. | |
1292 | * | |
1293 | * return true if recevied action frame is to be dropped. | |
1294 | */ | |
1295 | static bool | |
1296 | brcmf_p2p_gon_req_collision(struct brcmf_p2p_info *p2p, u8 *mac) | |
1297 | { | |
1298 | struct brcmf_cfg80211_info *cfg = p2p->cfg; | |
1299 | struct brcmf_if *ifp; | |
1300 | ||
1301 | brcmf_dbg(TRACE, "Enter\n"); | |
1302 | ||
1303 | if (!test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) || | |
1304 | !p2p->gon_req_action) | |
1305 | return false; | |
1306 | ||
1307 | brcmf_dbg(TRACE, "GO Negotiation Request COLLISION !!!\n"); | |
1308 | /* if sa(peer) addr is less than da(my) addr, then this device | |
1309 | * process peer's gon request and block to send gon req. | |
1310 | * if not (sa addr > da addr), | |
1311 | * this device will process gon request and drop gon req of peer. | |
1312 | */ | |
1313 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp; | |
1314 | if (memcmp(mac, ifp->mac_addr, ETH_ALEN) < 0) { | |
1315 | brcmf_dbg(INFO, "Block transmit gon req !!!\n"); | |
1316 | p2p->block_gon_req_tx = true; | |
1317 | /* if we are finding a common channel for sending af, | |
1318 | * do not scan more to block to send current gon req | |
1319 | */ | |
1320 | if (test_and_clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1321 | &p2p->status)) | |
1322 | complete(&p2p->afx_hdl.act_frm_scan); | |
1323 | if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1324 | &p2p->status)) | |
1325 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1326 | return false; | |
1327 | } | |
1328 | ||
1329 | /* drop gon request of peer to process gon request by this device. */ | |
1330 | brcmf_dbg(INFO, "Drop received gon req !!!\n"); | |
1331 | ||
1332 | return true; | |
1333 | } | |
1334 | ||
1335 | ||
e6da3400 HM |
1336 | /** |
1337 | * brcmf_p2p_notify_action_frame_rx() - received action frame. | |
1338 | * | |
1339 | * @ifp: interfac control. | |
1340 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1341 | * @data: payload of message, containing action frame data. | |
1342 | * | |
1343 | */ | |
1344 | int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp, | |
1345 | const struct brcmf_event_msg *e, | |
1346 | void *data) | |
1347 | { | |
6eda4e2c HM |
1348 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; |
1349 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1350 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
e6da3400 HM |
1351 | struct wireless_dev *wdev; |
1352 | u32 mgmt_frame_len = e->datalen - sizeof(struct brcmf_rx_mgmt_data); | |
1353 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
6eda4e2c HM |
1354 | u8 *frame = (u8 *)(rxframe + 1); |
1355 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1356 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
83cf17aa | 1357 | struct brcmu_chan ch; |
e6da3400 | 1358 | struct ieee80211_mgmt *mgmt_frame; |
e6da3400 HM |
1359 | s32 freq; |
1360 | u16 mgmt_type; | |
6eda4e2c | 1361 | u8 action; |
e6da3400 | 1362 | |
83cf17aa FL |
1363 | ch.chspec = be16_to_cpu(rxframe->chanspec); |
1364 | cfg->d11inf.decchspec(&ch); | |
e6da3400 HM |
1365 | /* Check if wpa_supplicant has registered for this frame */ |
1366 | brcmf_dbg(INFO, "ifp->vif->mgmt_rx_reg %04x\n", ifp->vif->mgmt_rx_reg); | |
1367 | mgmt_type = (IEEE80211_STYPE_ACTION & IEEE80211_FCTL_STYPE) >> 4; | |
1368 | if ((ifp->vif->mgmt_rx_reg & BIT(mgmt_type)) == 0) | |
1369 | return 0; | |
1370 | ||
6eda4e2c HM |
1371 | brcmf_p2p_print_actframe(false, frame, mgmt_frame_len); |
1372 | ||
1373 | action = P2P_PAF_SUBTYPE_INVALID; | |
1374 | if (brcmf_p2p_is_pub_action(frame, mgmt_frame_len)) { | |
1375 | act_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
1376 | action = act_frm->subtype; | |
1377 | if ((action == P2P_PAF_GON_REQ) && | |
1378 | (brcmf_p2p_gon_req_collision(p2p, (u8 *)e->addr))) { | |
1379 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1380 | &p2p->status) && | |
1381 | (memcmp(afx_hdl->tx_dst_addr, e->addr, | |
1382 | ETH_ALEN) == 0)) { | |
83cf17aa | 1383 | afx_hdl->peer_chan = ch.chnum; |
6eda4e2c HM |
1384 | brcmf_dbg(INFO, "GON request: Peer found, channel=%d\n", |
1385 | afx_hdl->peer_chan); | |
1386 | complete(&afx_hdl->act_frm_scan); | |
1387 | } | |
1388 | return 0; | |
1389 | } | |
1390 | /* After complete GO Negotiation, roll back to mpc mode */ | |
1391 | if ((action == P2P_PAF_GON_CONF) || | |
1392 | (action == P2P_PAF_PROVDIS_RSP)) | |
f96aa07e | 1393 | brcmf_set_mpc(ifp, 1); |
6eda4e2c HM |
1394 | if (action == P2P_PAF_GON_CONF) { |
1395 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1396 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1397 | } | |
1398 | } else if (brcmf_p2p_is_gas_action(frame, mgmt_frame_len)) { | |
1399 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
1400 | action = sd_act_frm->action; | |
1401 | } | |
1402 | ||
1403 | if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) && | |
1404 | (p2p->next_af_subtype == action)) { | |
1405 | brcmf_dbg(TRACE, "We got a right next frame! (%d)\n", action); | |
1406 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1407 | &p2p->status); | |
1408 | /* Stop waiting for next AF. */ | |
1409 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1410 | } | |
e6da3400 HM |
1411 | |
1412 | mgmt_frame = kzalloc(offsetof(struct ieee80211_mgmt, u) + | |
1413 | mgmt_frame_len, GFP_KERNEL); | |
1414 | if (!mgmt_frame) { | |
1415 | brcmf_err("No memory available for action frame\n"); | |
1416 | return -ENOMEM; | |
1417 | } | |
1418 | memcpy(mgmt_frame->da, ifp->mac_addr, ETH_ALEN); | |
6eda4e2c HM |
1419 | brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mgmt_frame->bssid, |
1420 | ETH_ALEN); | |
e6da3400 HM |
1421 | memcpy(mgmt_frame->sa, e->addr, ETH_ALEN); |
1422 | mgmt_frame->frame_control = cpu_to_le16(IEEE80211_STYPE_ACTION); | |
6eda4e2c | 1423 | memcpy(&mgmt_frame->u, frame, mgmt_frame_len); |
e6da3400 HM |
1424 | mgmt_frame_len += offsetof(struct ieee80211_mgmt, u); |
1425 | ||
83cf17aa FL |
1426 | freq = ieee80211_channel_to_frequency(ch.chnum, |
1427 | ch.band == BRCMU_CHAN_BAND_2G ? | |
e6da3400 HM |
1428 | IEEE80211_BAND_2GHZ : |
1429 | IEEE80211_BAND_5GHZ); | |
5b57af6e AS |
1430 | |
1431 | wdev = &ifp->vif->wdev; | |
e6da3400 HM |
1432 | cfg80211_rx_mgmt(wdev, freq, 0, (u8 *)mgmt_frame, mgmt_frame_len, |
1433 | GFP_ATOMIC); | |
1434 | ||
1435 | kfree(mgmt_frame); | |
1436 | return 0; | |
1437 | } | |
1438 | ||
1439 | ||
18e2f61d HM |
1440 | /** |
1441 | * brcmf_p2p_notify_action_tx_complete() - transmit action frame complete | |
1442 | * | |
1443 | * @ifp: interfac control. | |
1444 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1445 | * @data: not used. | |
1446 | * | |
1447 | */ | |
1448 | int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp, | |
1449 | const struct brcmf_event_msg *e, | |
1450 | void *data) | |
1451 | { | |
1452 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1453 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1454 | ||
6eda4e2c HM |
1455 | brcmf_dbg(INFO, "Enter: event %s, status=%d\n", |
1456 | e->event_code == BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE ? | |
1457 | "ACTION_FRAME_OFF_CHAN_COMPLETE" : "ACTION_FRAME_COMPLETE", | |
1458 | e->status); | |
18e2f61d | 1459 | |
6eda4e2c HM |
1460 | if (!test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status)) |
1461 | return 0; | |
1462 | ||
1463 | if (e->event_code == BRCMF_E_ACTION_FRAME_COMPLETE) { | |
1464 | if (e->status == BRCMF_E_STATUS_SUCCESS) | |
1465 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, | |
1466 | &p2p->status); | |
1467 | else { | |
1468 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1469 | /* If there is no ack, we don't need to wait for | |
1470 | * WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE event | |
1471 | */ | |
1472 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1473 | } | |
18e2f61d | 1474 | |
6eda4e2c HM |
1475 | } else { |
1476 | complete(&p2p->send_af_done); | |
1477 | } | |
18e2f61d HM |
1478 | return 0; |
1479 | } | |
1480 | ||
1481 | ||
1482 | /** | |
1483 | * brcmf_p2p_tx_action_frame() - send action frame over fil. | |
1484 | * | |
1485 | * @p2p: p2p info struct for vif. | |
1486 | * @af_params: action frame data/info. | |
1487 | * | |
1488 | * Send an action frame immediately without doing channel synchronization. | |
1489 | * | |
1490 | * This function waits for a completion event before returning. | |
1491 | * The WLC_E_ACTION_FRAME_COMPLETE event will be received when the action | |
1492 | * frame is transmitted. | |
1493 | */ | |
1494 | static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p, | |
1495 | struct brcmf_fil_af_params_le *af_params) | |
1496 | { | |
1497 | struct brcmf_cfg80211_vif *vif; | |
1498 | s32 err = 0; | |
1499 | s32 timeout = 0; | |
1500 | ||
1501 | brcmf_dbg(TRACE, "Enter\n"); | |
1502 | ||
6eda4e2c | 1503 | INIT_COMPLETION(p2p->send_af_done); |
18e2f61d HM |
1504 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); |
1505 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1506 | ||
1507 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1508 | err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe", af_params, | |
1509 | sizeof(*af_params)); | |
1510 | if (err) { | |
1511 | brcmf_err(" sending action frame has failed\n"); | |
1512 | goto exit; | |
1513 | } | |
1514 | ||
6eda4e2c HM |
1515 | p2p->af_sent_channel = le32_to_cpu(af_params->channel); |
1516 | p2p->af_tx_sent_jiffies = jiffies; | |
1517 | ||
18e2f61d HM |
1518 | timeout = wait_for_completion_timeout(&p2p->send_af_done, |
1519 | msecs_to_jiffies(P2P_AF_MAX_WAIT_TIME)); | |
1520 | ||
1521 | if (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status)) { | |
1522 | brcmf_dbg(TRACE, "TX action frame operation is success\n"); | |
1523 | } else { | |
1524 | err = -EIO; | |
1525 | brcmf_dbg(TRACE, "TX action frame operation has failed\n"); | |
1526 | } | |
1527 | /* clear status bit for action tx */ | |
1528 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); | |
1529 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1530 | ||
1531 | exit: | |
1532 | return err; | |
1533 | } | |
1534 | ||
1535 | ||
1536 | /** | |
1537 | * brcmf_p2p_pub_af_tx() - public action frame tx routine. | |
1538 | * | |
1539 | * @cfg: driver private data for cfg80211 interface. | |
1540 | * @af_params: action frame data/info. | |
1541 | * @config_af_params: configuration data for action frame. | |
1542 | * | |
1543 | * routine which transmits ation frame public type. | |
1544 | */ | |
1545 | static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg, | |
1546 | struct brcmf_fil_af_params_le *af_params, | |
1547 | struct brcmf_config_af_params *config_af_params) | |
1548 | { | |
1549 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1550 | struct brcmf_fil_action_frame_le *action_frame; | |
1551 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1552 | s32 err = 0; | |
6eda4e2c | 1553 | u16 ie_len; |
18e2f61d HM |
1554 | |
1555 | action_frame = &af_params->action_frame; | |
1556 | act_frm = (struct brcmf_p2p_pub_act_frame *)(action_frame->data); | |
1557 | ||
6eda4e2c HM |
1558 | config_af_params->extra_listen = true; |
1559 | ||
18e2f61d HM |
1560 | switch (act_frm->subtype) { |
1561 | case P2P_PAF_GON_REQ: | |
1562 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status set\n"); | |
1563 | set_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1564 | config_af_params->mpc_onoff = 0; | |
6eda4e2c | 1565 | config_af_params->search_channel = true; |
18e2f61d | 1566 | p2p->next_af_subtype = act_frm->subtype + 1; |
6eda4e2c | 1567 | p2p->gon_req_action = true; |
18e2f61d HM |
1568 | /* increase dwell time to wait for RESP frame */ |
1569 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1570 | break; | |
1571 | case P2P_PAF_GON_RSP: | |
1572 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1573 | /* increase dwell time to wait for CONF frame */ | |
1574 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1575 | break; | |
1576 | case P2P_PAF_GON_CONF: | |
1577 | /* If we reached till GO Neg confirmation reset the filter */ | |
1578 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1579 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1580 | /* turn on mpc again if go nego is done */ | |
1581 | config_af_params->mpc_onoff = 1; | |
1582 | /* minimize dwell time */ | |
1583 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1584 | config_af_params->extra_listen = false; |
18e2f61d HM |
1585 | break; |
1586 | case P2P_PAF_INVITE_REQ: | |
6eda4e2c | 1587 | config_af_params->search_channel = true; |
18e2f61d HM |
1588 | p2p->next_af_subtype = act_frm->subtype + 1; |
1589 | /* increase dwell time */ | |
1590 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1591 | break; | |
1592 | case P2P_PAF_INVITE_RSP: | |
1593 | /* minimize dwell time */ | |
1594 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1595 | config_af_params->extra_listen = false; |
18e2f61d HM |
1596 | break; |
1597 | case P2P_PAF_DEVDIS_REQ: | |
6eda4e2c | 1598 | config_af_params->search_channel = true; |
18e2f61d HM |
1599 | p2p->next_af_subtype = act_frm->subtype + 1; |
1600 | /* maximize dwell time to wait for RESP frame */ | |
1601 | af_params->dwell_time = cpu_to_le32(P2P_AF_LONG_DWELL_TIME); | |
1602 | break; | |
1603 | case P2P_PAF_DEVDIS_RSP: | |
1604 | /* minimize dwell time */ | |
1605 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1606 | config_af_params->extra_listen = false; |
18e2f61d HM |
1607 | break; |
1608 | case P2P_PAF_PROVDIS_REQ: | |
6eda4e2c HM |
1609 | ie_len = le16_to_cpu(action_frame->len) - |
1610 | offsetof(struct brcmf_p2p_pub_act_frame, elts); | |
1611 | if (cfg80211_get_p2p_attr(&act_frm->elts[0], ie_len, | |
1612 | IEEE80211_P2P_ATTR_GROUP_ID, | |
1613 | NULL, 0) < 0) | |
1614 | config_af_params->search_channel = true; | |
18e2f61d HM |
1615 | config_af_params->mpc_onoff = 0; |
1616 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1617 | /* increase dwell time to wait for RESP frame */ | |
1618 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1619 | break; | |
1620 | case P2P_PAF_PROVDIS_RSP: | |
1621 | /* wpa_supplicant send go nego req right after prov disc */ | |
1622 | p2p->next_af_subtype = P2P_PAF_GON_REQ; | |
1623 | /* increase dwell time to MED level */ | |
1624 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
6eda4e2c | 1625 | config_af_params->extra_listen = false; |
18e2f61d HM |
1626 | break; |
1627 | default: | |
1628 | brcmf_err("Unknown p2p pub act frame subtype: %d\n", | |
1629 | act_frm->subtype); | |
1630 | err = -EINVAL; | |
1631 | } | |
1632 | return err; | |
1633 | } | |
1634 | ||
1635 | /** | |
1636 | * brcmf_p2p_send_action_frame() - send action frame . | |
1637 | * | |
1638 | * @cfg: driver private data for cfg80211 interface. | |
1639 | * @ndev: net device to transmit on. | |
1640 | * @af_params: configuration data for action frame. | |
1641 | */ | |
1642 | bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg, | |
1643 | struct net_device *ndev, | |
1644 | struct brcmf_fil_af_params_le *af_params) | |
1645 | { | |
1646 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
a0f472ac | 1647 | struct brcmf_if *ifp = netdev_priv(ndev); |
18e2f61d HM |
1648 | struct brcmf_fil_action_frame_le *action_frame; |
1649 | struct brcmf_config_af_params config_af_params; | |
6eda4e2c | 1650 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; |
18e2f61d HM |
1651 | u16 action_frame_len; |
1652 | bool ack = false; | |
1653 | u8 category; | |
1654 | u8 action; | |
1655 | s32 tx_retry; | |
6eda4e2c HM |
1656 | s32 extra_listen_time; |
1657 | uint delta_ms; | |
18e2f61d HM |
1658 | |
1659 | action_frame = &af_params->action_frame; | |
1660 | action_frame_len = le16_to_cpu(action_frame->len); | |
1661 | ||
1662 | brcmf_p2p_print_actframe(true, action_frame->data, action_frame_len); | |
1663 | ||
1664 | /* Add the default dwell time. Dwell time to stay off-channel */ | |
1665 | /* to wait for a response action frame after transmitting an */ | |
1666 | /* GO Negotiation action frame */ | |
1667 | af_params->dwell_time = cpu_to_le32(P2P_AF_DWELL_TIME); | |
1668 | ||
1669 | category = action_frame->data[DOT11_ACTION_CAT_OFF]; | |
1670 | action = action_frame->data[DOT11_ACTION_ACT_OFF]; | |
1671 | ||
1672 | /* initialize variables */ | |
1673 | p2p->next_af_subtype = P2P_PAF_SUBTYPE_INVALID; | |
6eda4e2c | 1674 | p2p->gon_req_action = false; |
18e2f61d HM |
1675 | |
1676 | /* config parameters */ | |
18e2f61d | 1677 | config_af_params.mpc_onoff = -1; |
6eda4e2c HM |
1678 | config_af_params.search_channel = false; |
1679 | config_af_params.extra_listen = false; | |
18e2f61d HM |
1680 | |
1681 | if (brcmf_p2p_is_pub_action(action_frame->data, action_frame_len)) { | |
1682 | /* p2p public action frame process */ | |
1683 | if (brcmf_p2p_pub_af_tx(cfg, af_params, &config_af_params)) { | |
1684 | /* Just send unknown subtype frame with */ | |
1685 | /* default parameters. */ | |
1686 | brcmf_err("P2P Public action frame, unknown subtype.\n"); | |
1687 | } | |
1688 | } else if (brcmf_p2p_is_gas_action(action_frame->data, | |
1689 | action_frame_len)) { | |
1690 | /* service discovery process */ | |
1691 | if (action == P2PSD_ACTION_ID_GAS_IREQ || | |
1692 | action == P2PSD_ACTION_ID_GAS_CREQ) { | |
6eda4e2c HM |
1693 | /* configure service discovery query frame */ |
1694 | config_af_params.search_channel = true; | |
1695 | ||
18e2f61d HM |
1696 | /* save next af suptype to cancel */ |
1697 | /* remaining dwell time */ | |
1698 | p2p->next_af_subtype = action + 1; | |
1699 | ||
1700 | af_params->dwell_time = | |
1701 | cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1702 | } else if (action == P2PSD_ACTION_ID_GAS_IRESP || | |
1703 | action == P2PSD_ACTION_ID_GAS_CRESP) { | |
1704 | /* configure service discovery response frame */ | |
1705 | af_params->dwell_time = | |
1706 | cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
1707 | } else { | |
1708 | brcmf_err("Unknown action type: %d\n", action); | |
1709 | goto exit; | |
1710 | } | |
1711 | } else if (brcmf_p2p_is_p2p_action(action_frame->data, | |
1712 | action_frame_len)) { | |
1713 | /* do not configure anything. it will be */ | |
1714 | /* sent with a default configuration */ | |
1715 | } else { | |
1716 | brcmf_err("Unknown Frame: category 0x%x, action 0x%x\n", | |
1717 | category, action); | |
1718 | return false; | |
1719 | } | |
1720 | ||
6eda4e2c HM |
1721 | /* if connecting on primary iface, sleep for a while before sending |
1722 | * af tx for VSDB | |
1723 | */ | |
1724 | if (test_bit(BRCMF_VIF_STATUS_CONNECTING, | |
1725 | &p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->sme_state)) | |
1726 | msleep(50); | |
1727 | ||
18e2f61d HM |
1728 | /* if scan is ongoing, abort current scan. */ |
1729 | if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) | |
1730 | brcmf_abort_scanning(cfg); | |
1731 | ||
6eda4e2c HM |
1732 | memcpy(afx_hdl->tx_dst_addr, action_frame->da, ETH_ALEN); |
1733 | ||
18e2f61d HM |
1734 | /* To make sure to send successfully action frame, turn off mpc */ |
1735 | if (config_af_params.mpc_onoff == 0) | |
a0f472ac | 1736 | brcmf_set_mpc(ifp, 0); |
18e2f61d | 1737 | |
6eda4e2c HM |
1738 | /* set status and destination address before sending af */ |
1739 | if (p2p->next_af_subtype != P2P_PAF_SUBTYPE_INVALID) { | |
1740 | /* set status to cancel the remained dwell time in rx process */ | |
1741 | set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status); | |
1742 | } | |
1743 | ||
1744 | p2p->af_sent_channel = 0; | |
1745 | set_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status); | |
1746 | /* validate channel and p2p ies */ | |
1747 | if (config_af_params.search_channel && | |
1748 | IS_P2P_SOCIAL_CHANNEL(le32_to_cpu(af_params->channel)) && | |
1749 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->saved_ie.probe_req_ie_len) { | |
1750 | afx_hdl = &p2p->afx_hdl; | |
1751 | afx_hdl->peer_listen_chan = le32_to_cpu(af_params->channel); | |
1752 | ||
1753 | if (brcmf_p2p_af_searching_channel(p2p) == | |
1754 | P2P_INVALID_CHANNEL) { | |
1755 | brcmf_err("Couldn't find peer's channel.\n"); | |
1756 | goto exit; | |
1757 | } | |
1758 | ||
1759 | /* Abort scan even for VSDB scenarios. Scan gets aborted in | |
1760 | * firmware but after the check of piggyback algorithm. To take | |
1761 | * care of current piggback algo, lets abort the scan here | |
1762 | * itself. | |
1763 | */ | |
a0f472ac | 1764 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1765 | |
1766 | /* update channel */ | |
1767 | af_params->channel = cpu_to_le32(afx_hdl->peer_chan); | |
1768 | } | |
1769 | ||
18e2f61d | 1770 | tx_retry = 0; |
6eda4e2c HM |
1771 | while (!p2p->block_gon_req_tx && |
1772 | (ack == false) && (tx_retry < P2P_AF_TX_MAX_RETRY)) { | |
18e2f61d HM |
1773 | ack = !brcmf_p2p_tx_action_frame(p2p, af_params); |
1774 | tx_retry++; | |
1775 | } | |
6eda4e2c | 1776 | if (ack == false) { |
18e2f61d | 1777 | brcmf_err("Failed to send Action Frame(retry %d)\n", tx_retry); |
6eda4e2c HM |
1778 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
1779 | } | |
18e2f61d HM |
1780 | |
1781 | exit: | |
6eda4e2c HM |
1782 | clear_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status); |
1783 | ||
1784 | /* WAR: sometimes dongle does not keep the dwell time of 'actframe'. | |
1785 | * if we coundn't get the next action response frame and dongle does | |
1786 | * not keep the dwell time, go to listen state again to get next action | |
1787 | * response frame. | |
1788 | */ | |
1789 | if (ack && config_af_params.extra_listen && !p2p->block_gon_req_tx && | |
1790 | test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) && | |
1791 | p2p->af_sent_channel == afx_hdl->my_listen_chan) { | |
1792 | delta_ms = jiffies_to_msecs(jiffies - p2p->af_tx_sent_jiffies); | |
1793 | if (le32_to_cpu(af_params->dwell_time) > delta_ms) | |
1794 | extra_listen_time = le32_to_cpu(af_params->dwell_time) - | |
1795 | delta_ms; | |
1796 | else | |
1797 | extra_listen_time = 0; | |
1798 | if (extra_listen_time > 50) { | |
1799 | set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1800 | &p2p->status); | |
1801 | brcmf_dbg(INFO, "Wait more time! actual af time:%d, calculated extra listen:%d\n", | |
1802 | le32_to_cpu(af_params->dwell_time), | |
1803 | extra_listen_time); | |
1804 | extra_listen_time += 100; | |
1805 | if (!brcmf_p2p_discover_listen(p2p, | |
1806 | p2p->af_sent_channel, | |
1807 | extra_listen_time)) { | |
1808 | unsigned long duration; | |
1809 | ||
1810 | extra_listen_time += 100; | |
1811 | duration = msecs_to_jiffies(extra_listen_time); | |
1812 | wait_for_completion_timeout(&p2p->wait_next_af, | |
1813 | duration); | |
1814 | } | |
1815 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1816 | &p2p->status); | |
1817 | } | |
1818 | } | |
1819 | ||
1820 | if (p2p->block_gon_req_tx) { | |
1821 | /* if ack is true, supplicant will wait more time(100ms). | |
1822 | * so we will return it as a success to get more time . | |
1823 | */ | |
1824 | p2p->block_gon_req_tx = false; | |
1825 | ack = true; | |
1826 | } | |
1827 | ||
1828 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status); | |
18e2f61d HM |
1829 | /* if all done, turn mpc on again */ |
1830 | if (config_af_params.mpc_onoff == 1) | |
a0f472ac | 1831 | brcmf_set_mpc(ifp, 1); |
18e2f61d HM |
1832 | |
1833 | return ack; | |
1834 | } | |
1835 | ||
6eda4e2c HM |
1836 | /** |
1837 | * brcmf_p2p_notify_rx_mgmt_p2p_probereq() - Event handler for p2p probe req. | |
1838 | * | |
1839 | * @ifp: interface pointer for which event was received. | |
1840 | * @e: even message. | |
1841 | * @data: payload of event message (probe request). | |
1842 | */ | |
1843 | s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp, | |
1844 | const struct brcmf_event_msg *e, | |
1845 | void *data) | |
1846 | { | |
1847 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1848 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1849 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
6eda4e2c HM |
1850 | struct brcmf_cfg80211_vif *vif = ifp->vif; |
1851 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
1852 | u16 chanspec = be16_to_cpu(rxframe->chanspec); | |
83cf17aa | 1853 | struct brcmu_chan ch; |
6eda4e2c HM |
1854 | u8 *mgmt_frame; |
1855 | u32 mgmt_frame_len; | |
1856 | s32 freq; | |
1857 | u16 mgmt_type; | |
1858 | ||
1859 | brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code, | |
1860 | e->reason); | |
1861 | ||
83cf17aa FL |
1862 | ch.chspec = be16_to_cpu(rxframe->chanspec); |
1863 | cfg->d11inf.decchspec(&ch); | |
1864 | ||
6eda4e2c HM |
1865 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status) && |
1866 | (memcmp(afx_hdl->tx_dst_addr, e->addr, ETH_ALEN) == 0)) { | |
83cf17aa | 1867 | afx_hdl->peer_chan = ch.chnum; |
6eda4e2c HM |
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); | |
83cf17aa FL |
1892 | freq = ieee80211_channel_to_frequency(ch.chnum, |
1893 | ch.band == BRCMU_CHAN_BAND_2G ? | |
6eda4e2c HM |
1894 | IEEE80211_BAND_2GHZ : |
1895 | IEEE80211_BAND_5GHZ); | |
bffc61c9 AS |
1896 | |
1897 | cfg80211_rx_mgmt(&vif->wdev, freq, 0, mgmt_frame, mgmt_frame_len, | |
1898 | GFP_ATOMIC); | |
6eda4e2c HM |
1899 | |
1900 | brcmf_dbg(INFO, "mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n", | |
1901 | mgmt_frame_len, e->datalen, chanspec, freq); | |
1902 | ||
1903 | return 0; | |
1904 | } | |
1905 | ||
18e2f61d | 1906 | |
9f440b7b AS |
1907 | /** |
1908 | * brcmf_p2p_attach() - attach for P2P. | |
1909 | * | |
1910 | * @cfg: driver private data for cfg80211 interface. | |
1911 | */ | |
2fde59d9 | 1912 | s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg) |
9f440b7b | 1913 | { |
2fde59d9 HM |
1914 | struct brcmf_if *pri_ifp; |
1915 | struct brcmf_if *p2p_ifp; | |
1916 | struct brcmf_cfg80211_vif *p2p_vif; | |
9f440b7b | 1917 | struct brcmf_p2p_info *p2p; |
2fde59d9 HM |
1918 | struct brcmf_pub *drvr; |
1919 | s32 bssidx; | |
1920 | s32 err = 0; | |
9f440b7b AS |
1921 | |
1922 | p2p = &cfg->p2p; | |
9f440b7b | 1923 | p2p->cfg = cfg; |
2fde59d9 HM |
1924 | |
1925 | drvr = cfg->pub; | |
1926 | ||
1927 | pri_ifp = drvr->iflist[0]; | |
1928 | p2p_ifp = drvr->iflist[1]; | |
1929 | ||
1930 | p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif = pri_ifp->vif; | |
1931 | ||
1932 | if (p2p_ifp) { | |
dded3d53 | 1933 | p2p_vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_P2P_DEVICE, |
2fde59d9 HM |
1934 | false); |
1935 | if (IS_ERR(p2p_vif)) { | |
1936 | brcmf_err("could not create discovery vif\n"); | |
1937 | err = -ENOMEM; | |
1938 | goto exit; | |
1939 | } | |
1940 | ||
1941 | p2p_vif->ifp = p2p_ifp; | |
1942 | p2p_ifp->vif = p2p_vif; | |
1943 | p2p_vif->wdev.netdev = p2p_ifp->ndev; | |
1944 | p2p_ifp->ndev->ieee80211_ptr = &p2p_vif->wdev; | |
1945 | SET_NETDEV_DEV(p2p_ifp->ndev, wiphy_dev(cfg->wiphy)); | |
1946 | ||
1947 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif; | |
1948 | ||
27f10e38 | 1949 | brcmf_p2p_generate_bss_mac(p2p, NULL); |
01b8e7db | 1950 | memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN); |
2fde59d9 HM |
1951 | brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr); |
1952 | ||
1953 | /* Initialize P2P Discovery in the firmware */ | |
1954 | err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); | |
1955 | if (err < 0) { | |
1956 | brcmf_err("set p2p_disc error\n"); | |
1957 | brcmf_free_vif(p2p_vif); | |
1958 | goto exit; | |
1959 | } | |
1960 | /* obtain bsscfg index for P2P discovery */ | |
1961 | err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx); | |
1962 | if (err < 0) { | |
1963 | brcmf_err("retrieving discover bsscfg index failed\n"); | |
1964 | brcmf_free_vif(p2p_vif); | |
1965 | goto exit; | |
1966 | } | |
1967 | /* Verify that firmware uses same bssidx as driver !! */ | |
1968 | if (p2p_ifp->bssidx != bssidx) { | |
1969 | brcmf_err("Incorrect bssidx=%d, compared to p2p_ifp->bssidx=%d\n", | |
1970 | bssidx, p2p_ifp->bssidx); | |
1971 | brcmf_free_vif(p2p_vif); | |
1972 | goto exit; | |
1973 | } | |
1974 | ||
1975 | init_completion(&p2p->send_af_done); | |
6eda4e2c HM |
1976 | INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler); |
1977 | init_completion(&p2p->afx_hdl.act_frm_scan); | |
1978 | init_completion(&p2p->wait_next_af); | |
2fde59d9 HM |
1979 | } |
1980 | exit: | |
1981 | return err; | |
9f440b7b AS |
1982 | } |
1983 | ||
2fde59d9 | 1984 | |
9f440b7b AS |
1985 | /** |
1986 | * brcmf_p2p_detach() - detach P2P. | |
1987 | * | |
1988 | * @p2p: P2P specific data. | |
1989 | */ | |
1990 | void brcmf_p2p_detach(struct brcmf_p2p_info *p2p) | |
1991 | { | |
2fde59d9 HM |
1992 | struct brcmf_cfg80211_vif *vif; |
1993 | ||
1994 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1995 | if (vif != NULL) { | |
1996 | brcmf_p2p_cancel_remain_on_channel(vif->ifp); | |
0de8aace | 1997 | brcmf_p2p_deinit_discovery(p2p); |
2fde59d9 HM |
1998 | /* remove discovery interface */ |
1999 | brcmf_free_vif(vif); | |
2000 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; | |
0de8aace | 2001 | } |
9f440b7b AS |
2002 | /* just set it all to zero */ |
2003 | memset(p2p, 0, sizeof(*p2p)); | |
2004 | } | |
2005 | ||
7a5c1f64 HM |
2006 | /** |
2007 | * brcmf_p2p_get_current_chanspec() - Get current operation channel. | |
2008 | * | |
2009 | * @p2p: P2P specific data. | |
2010 | * @chanspec: chanspec to be returned. | |
2011 | */ | |
2012 | static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p, | |
2013 | u16 *chanspec) | |
d3c0b633 | 2014 | { |
7a5c1f64 | 2015 | struct brcmf_if *ifp; |
d3c0b633 | 2016 | struct brcmf_fil_chan_info_le ci; |
83cf17aa | 2017 | struct brcmu_chan ch; |
7a5c1f64 HM |
2018 | s32 err; |
2019 | ||
2020 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; | |
2021 | ||
83cf17aa | 2022 | ch.chnum = 11; |
d3c0b633 | 2023 | |
d3c0b633 | 2024 | err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci)); |
83cf17aa FL |
2025 | if (!err) |
2026 | ch.chnum = le32_to_cpu(ci.hw_channel); | |
2027 | ch.bw = BRCMU_CHAN_BW_20; | |
2028 | p2p->cfg->d11inf.encchspec(&ch); | |
2029 | *chanspec = ch.chspec; | |
7a5c1f64 HM |
2030 | } |
2031 | ||
2032 | /** | |
2033 | * Change a P2P Role. | |
2034 | * Parameters: | |
2035 | * @mac: MAC address of the BSS to change a role | |
2036 | * Returns 0 if success. | |
2037 | */ | |
2038 | int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg, | |
2039 | enum brcmf_fil_p2p_if_types if_type) | |
2040 | { | |
2041 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2042 | struct brcmf_cfg80211_vif *vif; | |
2043 | struct brcmf_fil_p2p_if_le if_request; | |
2044 | s32 err; | |
2045 | u16 chanspec; | |
2046 | ||
2047 | brcmf_dbg(TRACE, "Enter\n"); | |
2048 | ||
2049 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
2050 | if (!vif) { | |
2051 | brcmf_err("vif for P2PAPI_BSSCFG_PRIMARY does not exist\n"); | |
2052 | return -EPERM; | |
d3c0b633 | 2053 | } |
a0f472ac | 2054 | brcmf_notify_escan_complete(cfg, vif->ifp, true, true); |
7a5c1f64 HM |
2055 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; |
2056 | if (!vif) { | |
2057 | brcmf_err("vif for P2PAPI_BSSCFG_CONNECTION does not exist\n"); | |
2058 | return -EPERM; | |
2059 | } | |
f96aa07e | 2060 | brcmf_set_mpc(vif->ifp, 0); |
7a5c1f64 HM |
2061 | |
2062 | /* In concurrency case, STA may be already associated in a particular */ | |
2063 | /* channel. so retrieve the current channel of primary interface and */ | |
2064 | /* then start the virtual interface on that. */ | |
2065 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
2066 | ||
2067 | if_request.type = cpu_to_le16((u16)if_type); | |
2068 | if_request.chspec = cpu_to_le16(chanspec); | |
2069 | memcpy(if_request.addr, p2p->int_addr, sizeof(if_request.addr)); | |
2070 | ||
2071 | brcmf_cfg80211_arm_vif_event(cfg, vif); | |
2072 | err = brcmf_fil_iovar_data_set(vif->ifp, "p2p_ifupd", &if_request, | |
2073 | sizeof(if_request)); | |
2074 | if (err) { | |
2075 | brcmf_err("p2p_ifupd FAILED, err=%d\n", err); | |
2076 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
2077 | return err; | |
2078 | } | |
2079 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_CHANGE, | |
2080 | msecs_to_jiffies(1500)); | |
2081 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
2082 | if (!err) { | |
2083 | brcmf_err("No BRCMF_E_IF_CHANGE event received\n"); | |
2084 | return -EIO; | |
2085 | } | |
2086 | ||
2087 | err = brcmf_fil_cmd_int_set(vif->ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
2088 | BRCMF_SCB_TIMEOUT_VALUE); | |
2089 | ||
2090 | return err; | |
2091 | } | |
2092 | ||
2093 | static int brcmf_p2p_request_p2p_if(struct brcmf_p2p_info *p2p, | |
2094 | struct brcmf_if *ifp, u8 ea[ETH_ALEN], | |
2095 | enum brcmf_fil_p2p_if_types iftype) | |
2096 | { | |
2097 | struct brcmf_fil_p2p_if_le if_request; | |
2098 | int err; | |
2099 | u16 chanspec; | |
2100 | ||
2101 | /* we need a default channel */ | |
2102 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
d3c0b633 AS |
2103 | |
2104 | /* fill the firmware request */ | |
2105 | memcpy(if_request.addr, ea, ETH_ALEN); | |
7ee2d926 | 2106 | if_request.type = cpu_to_le16((u16)iftype); |
d3c0b633 AS |
2107 | if_request.chspec = cpu_to_le16(chanspec); |
2108 | ||
2109 | err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request, | |
2110 | sizeof(if_request)); | |
2111 | if (err) | |
2112 | return err; | |
2113 | ||
d3c0b633 AS |
2114 | return err; |
2115 | } | |
2116 | ||
5f4f9f11 AS |
2117 | static int brcmf_p2p_disable_p2p_if(struct brcmf_cfg80211_vif *vif) |
2118 | { | |
2119 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
2120 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
2121 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
2122 | u8 *addr = vif->wdev.netdev->dev_addr; | |
2123 | ||
2124 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdis", addr, ETH_ALEN); | |
2125 | } | |
2126 | ||
2127 | static int brcmf_p2p_release_p2p_if(struct brcmf_cfg80211_vif *vif) | |
2128 | { | |
2129 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
2130 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
2131 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
2132 | u8 *addr = vif->wdev.netdev->dev_addr; | |
2133 | ||
2134 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdel", addr, ETH_ALEN); | |
2135 | } | |
2136 | ||
27f10e38 AS |
2137 | /** |
2138 | * brcmf_p2p_create_p2pdev() - create a P2P_DEVICE virtual interface. | |
2139 | * | |
2140 | * @p2p: P2P specific data. | |
2141 | * @wiphy: wiphy device of new interface. | |
2142 | * @addr: mac address for this new interface. | |
2143 | */ | |
2144 | static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p, | |
2145 | struct wiphy *wiphy, | |
2146 | u8 *addr) | |
2147 | { | |
2148 | struct brcmf_cfg80211_vif *p2p_vif; | |
2149 | struct brcmf_if *p2p_ifp; | |
2150 | struct brcmf_if *pri_ifp; | |
2151 | int err; | |
2152 | u32 bssidx; | |
2153 | ||
2154 | if (p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif) | |
2155 | return ERR_PTR(-ENOSPC); | |
2156 | ||
2157 | p2p_vif = brcmf_alloc_vif(p2p->cfg, NL80211_IFTYPE_P2P_DEVICE, | |
2158 | false); | |
2159 | if (IS_ERR(p2p_vif)) { | |
2160 | brcmf_err("could not create discovery vif\n"); | |
2161 | return (struct wireless_dev *)p2p_vif; | |
2162 | } | |
2163 | ||
27f10e38 | 2164 | pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
01b8e7db | 2165 | brcmf_p2p_generate_bss_mac(p2p, addr); |
27f10e38 AS |
2166 | brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr); |
2167 | ||
01b8e7db AS |
2168 | brcmf_cfg80211_arm_vif_event(p2p->cfg, p2p_vif); |
2169 | ||
27f10e38 AS |
2170 | /* Initialize P2P Discovery in the firmware */ |
2171 | err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); | |
2172 | if (err < 0) { | |
2173 | brcmf_err("set p2p_disc error\n"); | |
01b8e7db AS |
2174 | brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL); |
2175 | goto fail; | |
2176 | } | |
2177 | ||
2178 | /* wait for firmware event */ | |
2179 | err = brcmf_cfg80211_wait_vif_event_timeout(p2p->cfg, BRCMF_E_IF_ADD, | |
2180 | msecs_to_jiffies(1500)); | |
2181 | brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL); | |
2182 | if (!err) { | |
2183 | brcmf_err("timeout occurred\n"); | |
2184 | err = -EIO; | |
2185 | goto fail; | |
27f10e38 | 2186 | } |
01b8e7db AS |
2187 | |
2188 | /* discovery interface created */ | |
2189 | p2p_ifp = p2p_vif->ifp; | |
2190 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif; | |
2191 | memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN); | |
2192 | memcpy(&p2p_vif->wdev.address, p2p->dev_addr, sizeof(p2p->dev_addr)); | |
2193 | ||
2194 | /* verify bsscfg index for P2P discovery */ | |
27f10e38 AS |
2195 | err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx); |
2196 | if (err < 0) { | |
2197 | brcmf_err("retrieving discover bsscfg index failed\n"); | |
01b8e7db | 2198 | goto fail; |
27f10e38 AS |
2199 | } |
2200 | ||
01b8e7db | 2201 | WARN_ON(p2p_ifp->bssidx != bssidx); |
27f10e38 AS |
2202 | |
2203 | init_completion(&p2p->send_af_done); | |
2204 | INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler); | |
2205 | init_completion(&p2p->afx_hdl.act_frm_scan); | |
2206 | init_completion(&p2p->wait_next_af); | |
2207 | ||
2208 | return &p2p_vif->wdev; | |
01b8e7db AS |
2209 | |
2210 | fail: | |
2211 | brcmf_free_vif(p2p_vif); | |
2212 | return ERR_PTR(err); | |
27f10e38 AS |
2213 | } |
2214 | ||
2215 | /** | |
2216 | * brcmf_p2p_delete_p2pdev() - delete P2P_DEVICE virtual interface. | |
2217 | * | |
2218 | * @vif: virtual interface object to delete. | |
2219 | */ | |
2220 | static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_vif *vif) | |
2221 | { | |
2222 | struct brcmf_p2p_info *p2p = &vif->ifp->drvr->config->p2p; | |
2223 | ||
2224 | cfg80211_unregister_wdev(&vif->wdev); | |
2225 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; | |
27f10e38 AS |
2226 | brcmf_free_vif(vif); |
2227 | } | |
2228 | ||
9f440b7b AS |
2229 | /** |
2230 | * brcmf_p2p_add_vif() - create a new P2P virtual interface. | |
2231 | * | |
2232 | * @wiphy: wiphy device of new interface. | |
2233 | * @name: name of the new interface. | |
2234 | * @type: nl80211 interface type. | |
27f10e38 AS |
2235 | * @flags: not used. |
2236 | * @params: contains mac address for P2P device. | |
9f440b7b AS |
2237 | */ |
2238 | struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, | |
2239 | enum nl80211_iftype type, u32 *flags, | |
2240 | struct vif_params *params) | |
2241 | { | |
d3c0b633 AS |
2242 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); |
2243 | struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); | |
2244 | struct brcmf_cfg80211_vif *vif; | |
2245 | enum brcmf_fil_p2p_if_types iftype; | |
2246 | enum wl_mode mode; | |
2247 | int err; | |
2248 | ||
2249 | if (brcmf_cfg80211_vif_event_armed(cfg)) | |
2250 | return ERR_PTR(-EBUSY); | |
2251 | ||
9f440b7b | 2252 | brcmf_dbg(INFO, "adding vif \"%s\" (type=%d)\n", name, type); |
d3c0b633 AS |
2253 | |
2254 | switch (type) { | |
2255 | case NL80211_IFTYPE_P2P_CLIENT: | |
2256 | iftype = BRCMF_FIL_P2P_IF_CLIENT; | |
2257 | mode = WL_MODE_BSS; | |
2258 | break; | |
2259 | case NL80211_IFTYPE_P2P_GO: | |
2260 | iftype = BRCMF_FIL_P2P_IF_GO; | |
2261 | mode = WL_MODE_AP; | |
2262 | break; | |
27f10e38 AS |
2263 | case NL80211_IFTYPE_P2P_DEVICE: |
2264 | return brcmf_p2p_create_p2pdev(&cfg->p2p, wiphy, | |
2265 | params->macaddr); | |
d3c0b633 AS |
2266 | default: |
2267 | return ERR_PTR(-EOPNOTSUPP); | |
2268 | } | |
2269 | ||
2270 | vif = brcmf_alloc_vif(cfg, type, false); | |
7ee2d926 HM |
2271 | if (IS_ERR(vif)) |
2272 | return (struct wireless_dev *)vif; | |
d3c0b633 AS |
2273 | brcmf_cfg80211_arm_vif_event(cfg, vif); |
2274 | ||
7a5c1f64 HM |
2275 | err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, cfg->p2p.int_addr, |
2276 | iftype); | |
7ee2d926 HM |
2277 | if (err) { |
2278 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
d3c0b633 | 2279 | goto fail; |
7ee2d926 | 2280 | } |
d3c0b633 AS |
2281 | |
2282 | /* wait for firmware event */ | |
2283 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD, | |
2284 | msecs_to_jiffies(1500)); | |
2285 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
2286 | if (!err) { | |
2287 | brcmf_err("timeout occurred\n"); | |
2288 | err = -EIO; | |
2289 | goto fail; | |
2290 | } | |
2291 | ||
2292 | /* interface created in firmware */ | |
2293 | ifp = vif->ifp; | |
2294 | if (!ifp) { | |
2295 | brcmf_err("no if pointer provided\n"); | |
2296 | err = -ENOENT; | |
7ee2d926 | 2297 | goto fail; |
d3c0b633 AS |
2298 | } |
2299 | ||
2300 | strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1); | |
4b3a89de HM |
2301 | err = brcmf_net_attach(ifp, true); |
2302 | if (err) { | |
2303 | brcmf_err("Registering netdevice failed\n"); | |
2304 | goto fail; | |
2305 | } | |
7ee2d926 HM |
2306 | cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = vif; |
2307 | /* Disable firmware roaming for P2P interface */ | |
2308 | brcmf_fil_iovar_int_set(ifp, "roam_off", 1); | |
2309 | if (iftype == BRCMF_FIL_P2P_IF_GO) { | |
2310 | /* set station timeout for p2p */ | |
2311 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
2312 | BRCMF_SCB_TIMEOUT_VALUE); | |
2313 | } | |
d3c0b633 AS |
2314 | return &ifp->vif->wdev; |
2315 | ||
2316 | fail: | |
2317 | brcmf_free_vif(vif); | |
2318 | return ERR_PTR(err); | |
9f440b7b AS |
2319 | } |
2320 | ||
2321 | /** | |
2322 | * brcmf_p2p_del_vif() - delete a P2P virtual interface. | |
2323 | * | |
2324 | * @wiphy: wiphy device of interface. | |
2325 | * @wdev: wireless device of interface. | |
2326 | * | |
2327 | * TODO: not yet supported. | |
2328 | */ | |
2329 | int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2330 | { | |
d3c0b633 | 2331 | struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); |
6eda4e2c | 2332 | struct brcmf_p2p_info *p2p = &cfg->p2p; |
9f440b7b | 2333 | struct brcmf_cfg80211_vif *vif; |
5f4f9f11 AS |
2334 | unsigned long jiffie_timeout = msecs_to_jiffies(1500); |
2335 | bool wait_for_disable = false; | |
d3c0b633 | 2336 | int err; |
9f440b7b | 2337 | |
5f4f9f11 | 2338 | brcmf_dbg(TRACE, "delete P2P vif\n"); |
9f440b7b | 2339 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); |
d3c0b633 | 2340 | |
5f4f9f11 AS |
2341 | switch (vif->wdev.iftype) { |
2342 | case NL80211_IFTYPE_P2P_CLIENT: | |
2343 | if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state)) | |
2344 | wait_for_disable = true; | |
2345 | break; | |
2346 | ||
2347 | case NL80211_IFTYPE_P2P_GO: | |
2348 | if (!brcmf_p2p_disable_p2p_if(vif)) | |
2349 | wait_for_disable = true; | |
2350 | break; | |
2351 | ||
2352 | case NL80211_IFTYPE_P2P_DEVICE: | |
27f10e38 AS |
2353 | brcmf_p2p_delete_p2pdev(vif); |
2354 | return 0; | |
5f4f9f11 AS |
2355 | default: |
2356 | return -ENOTSUPP; | |
2357 | break; | |
2358 | } | |
2359 | ||
6eda4e2c HM |
2360 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
2361 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
2362 | ||
5f4f9f11 | 2363 | if (wait_for_disable) |
7ee2d926 HM |
2364 | wait_for_completion_timeout(&cfg->vif_disabled, |
2365 | msecs_to_jiffies(500)); | |
5f4f9f11 AS |
2366 | |
2367 | brcmf_vif_clear_mgmt_ies(vif); | |
d3c0b633 AS |
2368 | |
2369 | brcmf_cfg80211_arm_vif_event(cfg, vif); | |
5f4f9f11 | 2370 | err = brcmf_p2p_release_p2p_if(vif); |
7ee2d926 | 2371 | if (!err) { |
5f4f9f11 AS |
2372 | /* wait for firmware event */ |
2373 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_DEL, | |
2374 | jiffie_timeout); | |
7ee2d926 HM |
2375 | if (!err) |
2376 | err = -EIO; | |
2377 | else | |
2378 | err = 0; | |
2379 | } | |
d3c0b633 | 2380 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
5f4f9f11 | 2381 | brcmf_free_vif(vif); |
6eda4e2c | 2382 | p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; |
5f4f9f11 AS |
2383 | |
2384 | return err; | |
9f440b7b | 2385 | } |
27f10e38 AS |
2386 | |
2387 | int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2388 | { | |
2389 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
2390 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2391 | struct brcmf_cfg80211_vif *vif; | |
2392 | int err; | |
2393 | ||
2394 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); | |
2395 | mutex_lock(&cfg->usr_sync); | |
2396 | err = brcmf_p2p_enable_discovery(p2p); | |
2397 | if (!err) | |
2398 | set_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state); | |
2399 | mutex_unlock(&cfg->usr_sync); | |
2400 | return err; | |
2401 | } | |
2402 | ||
2403 | void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2404 | { | |
2405 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
2406 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2407 | struct brcmf_cfg80211_vif *vif; | |
2408 | ||
2409 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); | |
2410 | mutex_lock(&cfg->usr_sync); | |
2411 | (void)brcmf_p2p_deinit_discovery(p2p); | |
2412 | brcmf_abort_scanning(cfg); | |
2413 | clear_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state); | |
2414 | mutex_unlock(&cfg->usr_sync); | |
2415 | } |