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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> |
f7a40873 | 19 | #include <linux/rtnetlink.h> |
9f440b7b AS |
20 | #include <net/cfg80211.h> |
21 | ||
22 | #include <brcmu_wifi.h> | |
23 | #include <brcmu_utils.h> | |
24 | #include <defs.h> | |
122d3d04 | 25 | #include "core.h" |
a8e8ed34 | 26 | #include "debug.h" |
9f440b7b | 27 | #include "fwil.h" |
d3c0b633 | 28 | #include "fwil_types.h" |
9f440b7b | 29 | #include "p2p.h" |
bfe81975 | 30 | #include "cfg80211.h" |
9f440b7b AS |
31 | |
32 | /* parameters used for p2p escan */ | |
33 | #define P2PAPI_SCAN_NPROBES 1 | |
34 | #define P2PAPI_SCAN_DWELL_TIME_MS 80 | |
35 | #define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40 | |
36 | #define P2PAPI_SCAN_HOME_TIME_MS 60 | |
37 | #define P2PAPI_SCAN_NPROBS_TIME_MS 30 | |
38 | #define P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS 100 | |
39 | #define WL_SCAN_CONNECT_DWELL_TIME_MS 200 | |
40 | #define WL_SCAN_JOIN_PROBE_INTERVAL_MS 20 | |
41 | ||
42 | #define BRCMF_P2P_WILDCARD_SSID "DIRECT-" | |
43 | #define BRCMF_P2P_WILDCARD_SSID_LEN (sizeof(BRCMF_P2P_WILDCARD_SSID) - 1) | |
44 | ||
45 | #define SOCIAL_CHAN_1 1 | |
46 | #define SOCIAL_CHAN_2 6 | |
47 | #define SOCIAL_CHAN_3 11 | |
6eda4e2c HM |
48 | #define IS_P2P_SOCIAL_CHANNEL(channel) ((channel == SOCIAL_CHAN_1) || \ |
49 | (channel == SOCIAL_CHAN_2) || \ | |
50 | (channel == SOCIAL_CHAN_3)) | |
15a953d0 | 51 | #define BRCMF_P2P_TEMP_CHAN SOCIAL_CHAN_3 |
9f440b7b AS |
52 | #define SOCIAL_CHAN_CNT 3 |
53 | #define AF_PEER_SEARCH_CNT 2 | |
54 | ||
d3c0b633 AS |
55 | #define BRCMF_SCB_TIMEOUT_VALUE 20 |
56 | ||
e6da3400 HM |
57 | #define P2P_VER 9 /* P2P version: 9=WiFi P2P v1.0 */ |
58 | #define P2P_PUB_AF_CATEGORY 0x04 | |
59 | #define P2P_PUB_AF_ACTION 0x09 | |
60 | #define P2P_AF_CATEGORY 0x7f | |
61 | #define P2P_OUI "\x50\x6F\x9A" /* P2P OUI */ | |
62 | #define P2P_OUI_LEN 3 /* P2P OUI length */ | |
63 | ||
18e2f61d HM |
64 | /* Action Frame Constants */ |
65 | #define DOT11_ACTION_HDR_LEN 2 /* action frame category + action */ | |
66 | #define DOT11_ACTION_CAT_OFF 0 /* category offset */ | |
67 | #define DOT11_ACTION_ACT_OFF 1 /* action offset */ | |
68 | ||
69 | #define P2P_AF_DWELL_TIME 200 | |
70 | #define P2P_AF_MIN_DWELL_TIME 100 | |
71 | #define P2P_AF_MED_DWELL_TIME 400 | |
72 | #define P2P_AF_LONG_DWELL_TIME 1000 | |
6eda4e2c | 73 | #define P2P_AF_TX_MAX_RETRY 1 |
63ce3d5d | 74 | #define P2P_AF_MAX_WAIT_TIME msecs_to_jiffies(2000) |
18e2f61d HM |
75 | #define P2P_INVALID_CHANNEL -1 |
76 | #define P2P_CHANNEL_SYNC_RETRY 5 | |
63ce3d5d | 77 | #define P2P_AF_FRM_SCAN_MAX_WAIT msecs_to_jiffies(1500) |
6eda4e2c | 78 | #define P2P_DEFAULT_SLEEP_TIME_VSDB 200 |
18e2f61d | 79 | |
e6da3400 HM |
80 | /* WiFi P2P Public Action Frame OUI Subtypes */ |
81 | #define P2P_PAF_GON_REQ 0 /* Group Owner Negotiation Req */ | |
82 | #define P2P_PAF_GON_RSP 1 /* Group Owner Negotiation Rsp */ | |
83 | #define P2P_PAF_GON_CONF 2 /* Group Owner Negotiation Confirm */ | |
84 | #define P2P_PAF_INVITE_REQ 3 /* P2P Invitation Request */ | |
85 | #define P2P_PAF_INVITE_RSP 4 /* P2P Invitation Response */ | |
86 | #define P2P_PAF_DEVDIS_REQ 5 /* Device Discoverability Request */ | |
87 | #define P2P_PAF_DEVDIS_RSP 6 /* Device Discoverability Response */ | |
88 | #define P2P_PAF_PROVDIS_REQ 7 /* Provision Discovery Request */ | |
89 | #define P2P_PAF_PROVDIS_RSP 8 /* Provision Discovery Response */ | |
90 | #define P2P_PAF_SUBTYPE_INVALID 255 /* Invalid Subtype */ | |
91 | ||
92 | /* WiFi P2P Action Frame OUI Subtypes */ | |
93 | #define P2P_AF_NOTICE_OF_ABSENCE 0 /* Notice of Absence */ | |
94 | #define P2P_AF_PRESENCE_REQ 1 /* P2P Presence Request */ | |
95 | #define P2P_AF_PRESENCE_RSP 2 /* P2P Presence Response */ | |
96 | #define P2P_AF_GO_DISC_REQ 3 /* GO Discoverability Request */ | |
97 | ||
98 | /* P2P Service Discovery related */ | |
99 | #define P2PSD_ACTION_CATEGORY 0x04 /* Public action frame */ | |
100 | #define P2PSD_ACTION_ID_GAS_IREQ 0x0a /* GAS Initial Request AF */ | |
101 | #define P2PSD_ACTION_ID_GAS_IRESP 0x0b /* GAS Initial Response AF */ | |
102 | #define P2PSD_ACTION_ID_GAS_CREQ 0x0c /* GAS Comback Request AF */ | |
103 | #define P2PSD_ACTION_ID_GAS_CRESP 0x0d /* GAS Comback Response AF */ | |
104 | ||
63ce3d5d | 105 | #define BRCMF_P2P_DISABLE_TIMEOUT msecs_to_jiffies(500) |
9f440b7b AS |
106 | /** |
107 | * struct brcmf_p2p_disc_st_le - set discovery state in firmware. | |
108 | * | |
109 | * @state: requested discovery state (see enum brcmf_p2p_disc_state). | |
110 | * @chspec: channel parameter for %WL_P2P_DISC_ST_LISTEN state. | |
111 | * @dwell: dwell time in ms for %WL_P2P_DISC_ST_LISTEN state. | |
112 | */ | |
113 | struct brcmf_p2p_disc_st_le { | |
114 | u8 state; | |
115 | __le16 chspec; | |
116 | __le16 dwell; | |
117 | }; | |
118 | ||
119 | /** | |
120 | * enum brcmf_p2p_disc_state - P2P discovery state values | |
121 | * | |
122 | * @WL_P2P_DISC_ST_SCAN: P2P discovery with wildcard SSID and P2P IE. | |
123 | * @WL_P2P_DISC_ST_LISTEN: P2P discovery off-channel for specified time. | |
124 | * @WL_P2P_DISC_ST_SEARCH: P2P discovery with P2P wildcard SSID and P2P IE. | |
125 | */ | |
126 | enum brcmf_p2p_disc_state { | |
127 | WL_P2P_DISC_ST_SCAN, | |
128 | WL_P2P_DISC_ST_LISTEN, | |
129 | WL_P2P_DISC_ST_SEARCH | |
130 | }; | |
131 | ||
132 | /** | |
133 | * struct brcmf_p2p_scan_le - P2P specific scan request. | |
134 | * | |
135 | * @type: type of scan method requested (values: 'E' or 'S'). | |
136 | * @reserved: reserved (ignored). | |
137 | * @eparams: parameters used for type 'E'. | |
138 | * @sparams: parameters used for type 'S'. | |
139 | */ | |
140 | struct brcmf_p2p_scan_le { | |
141 | u8 type; | |
142 | u8 reserved[3]; | |
143 | union { | |
144 | struct brcmf_escan_params_le eparams; | |
145 | struct brcmf_scan_params_le sparams; | |
146 | }; | |
147 | }; | |
148 | ||
e6da3400 HM |
149 | /** |
150 | * struct brcmf_p2p_pub_act_frame - WiFi P2P Public Action Frame | |
151 | * | |
152 | * @category: P2P_PUB_AF_CATEGORY | |
153 | * @action: P2P_PUB_AF_ACTION | |
154 | * @oui[3]: P2P_OUI | |
155 | * @oui_type: OUI type - P2P_VER | |
156 | * @subtype: OUI subtype - P2P_TYPE_* | |
157 | * @dialog_token: nonzero, identifies req/rsp transaction | |
158 | * @elts[1]: Variable length information elements. | |
159 | */ | |
160 | struct brcmf_p2p_pub_act_frame { | |
161 | u8 category; | |
162 | u8 action; | |
163 | u8 oui[3]; | |
164 | u8 oui_type; | |
165 | u8 subtype; | |
166 | u8 dialog_token; | |
167 | u8 elts[1]; | |
168 | }; | |
169 | ||
170 | /** | |
171 | * struct brcmf_p2p_action_frame - WiFi P2P Action Frame | |
172 | * | |
173 | * @category: P2P_AF_CATEGORY | |
174 | * @OUI[3]: OUI - P2P_OUI | |
175 | * @type: OUI Type - P2P_VER | |
176 | * @subtype: OUI Subtype - P2P_AF_* | |
177 | * @dialog_token: nonzero, identifies req/resp tranaction | |
178 | * @elts[1]: Variable length information elements. | |
179 | */ | |
180 | struct brcmf_p2p_action_frame { | |
181 | u8 category; | |
182 | u8 oui[3]; | |
183 | u8 type; | |
184 | u8 subtype; | |
185 | u8 dialog_token; | |
186 | u8 elts[1]; | |
187 | }; | |
188 | ||
189 | /** | |
190 | * struct brcmf_p2psd_gas_pub_act_frame - Wi-Fi GAS Public Action Frame | |
191 | * | |
192 | * @category: 0x04 Public Action Frame | |
193 | * @action: 0x6c Advertisement Protocol | |
194 | * @dialog_token: nonzero, identifies req/rsp transaction | |
195 | * @query_data[1]: Query Data. SD gas ireq SD gas iresp | |
196 | */ | |
197 | struct brcmf_p2psd_gas_pub_act_frame { | |
198 | u8 category; | |
199 | u8 action; | |
200 | u8 dialog_token; | |
201 | u8 query_data[1]; | |
202 | }; | |
203 | ||
18e2f61d HM |
204 | /** |
205 | * struct brcmf_config_af_params - Action Frame Parameters for tx. | |
206 | * | |
18e2f61d HM |
207 | * @mpc_onoff: To make sure to send successfully action frame, we have to |
208 | * turn off mpc 0: off, 1: on, (-1): do nothing | |
6eda4e2c HM |
209 | * @search_channel: 1: search peer's channel to send af |
210 | * extra_listen: keep the dwell time to get af response frame. | |
18e2f61d HM |
211 | */ |
212 | struct brcmf_config_af_params { | |
18e2f61d | 213 | s32 mpc_onoff; |
6eda4e2c HM |
214 | bool search_channel; |
215 | bool extra_listen; | |
18e2f61d | 216 | }; |
e6da3400 HM |
217 | |
218 | /** | |
219 | * brcmf_p2p_is_pub_action() - true if p2p public type frame. | |
220 | * | |
221 | * @frame: action frame data. | |
222 | * @frame_len: length of action frame data. | |
223 | * | |
224 | * Determine if action frame is p2p public action type | |
225 | */ | |
226 | static bool brcmf_p2p_is_pub_action(void *frame, u32 frame_len) | |
227 | { | |
228 | struct brcmf_p2p_pub_act_frame *pact_frm; | |
229 | ||
230 | if (frame == NULL) | |
231 | return false; | |
232 | ||
233 | pact_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
234 | if (frame_len < sizeof(struct brcmf_p2p_pub_act_frame) - 1) | |
235 | return false; | |
236 | ||
237 | if (pact_frm->category == P2P_PUB_AF_CATEGORY && | |
238 | pact_frm->action == P2P_PUB_AF_ACTION && | |
239 | pact_frm->oui_type == P2P_VER && | |
240 | memcmp(pact_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0) | |
241 | return true; | |
242 | ||
243 | return false; | |
244 | } | |
245 | ||
246 | /** | |
247 | * brcmf_p2p_is_p2p_action() - true if p2p action type frame. | |
248 | * | |
249 | * @frame: action frame data. | |
250 | * @frame_len: length of action frame data. | |
251 | * | |
252 | * Determine if action frame is p2p action type | |
253 | */ | |
254 | static bool brcmf_p2p_is_p2p_action(void *frame, u32 frame_len) | |
255 | { | |
256 | struct brcmf_p2p_action_frame *act_frm; | |
257 | ||
258 | if (frame == NULL) | |
259 | return false; | |
260 | ||
261 | act_frm = (struct brcmf_p2p_action_frame *)frame; | |
262 | if (frame_len < sizeof(struct brcmf_p2p_action_frame) - 1) | |
263 | return false; | |
264 | ||
265 | if (act_frm->category == P2P_AF_CATEGORY && | |
266 | act_frm->type == P2P_VER && | |
267 | memcmp(act_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0) | |
268 | return true; | |
269 | ||
270 | return false; | |
271 | } | |
272 | ||
273 | /** | |
274 | * brcmf_p2p_is_gas_action() - true if p2p gas action type frame. | |
275 | * | |
276 | * @frame: action frame data. | |
277 | * @frame_len: length of action frame data. | |
278 | * | |
279 | * Determine if action frame is p2p gas action type | |
280 | */ | |
281 | static bool brcmf_p2p_is_gas_action(void *frame, u32 frame_len) | |
282 | { | |
283 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
284 | ||
285 | if (frame == NULL) | |
286 | return false; | |
287 | ||
288 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
289 | if (frame_len < sizeof(struct brcmf_p2psd_gas_pub_act_frame) - 1) | |
290 | return false; | |
291 | ||
292 | if (sd_act_frm->category != P2PSD_ACTION_CATEGORY) | |
293 | return false; | |
294 | ||
295 | if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_IREQ || | |
296 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_IRESP || | |
297 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_CREQ || | |
298 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_CRESP) | |
299 | return true; | |
300 | ||
301 | return false; | |
302 | } | |
303 | ||
304 | /** | |
305 | * brcmf_p2p_print_actframe() - debug print routine. | |
306 | * | |
307 | * @tx: Received or to be transmitted | |
308 | * @frame: action frame data. | |
309 | * @frame_len: length of action frame data. | |
310 | * | |
311 | * Print information about the p2p action frame | |
312 | */ | |
0a4cf487 HM |
313 | |
314 | #ifdef DEBUG | |
315 | ||
e6da3400 HM |
316 | static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len) |
317 | { | |
318 | struct brcmf_p2p_pub_act_frame *pact_frm; | |
319 | struct brcmf_p2p_action_frame *act_frm; | |
320 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
321 | ||
322 | if (!frame || frame_len <= 2) | |
323 | return; | |
324 | ||
325 | if (brcmf_p2p_is_pub_action(frame, frame_len)) { | |
326 | pact_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
327 | switch (pact_frm->subtype) { | |
328 | case P2P_PAF_GON_REQ: | |
329 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Req Frame\n", | |
330 | (tx) ? "TX" : "RX"); | |
331 | break; | |
332 | case P2P_PAF_GON_RSP: | |
333 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Rsp Frame\n", | |
334 | (tx) ? "TX" : "RX"); | |
335 | break; | |
336 | case P2P_PAF_GON_CONF: | |
337 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Confirm Frame\n", | |
338 | (tx) ? "TX" : "RX"); | |
339 | break; | |
340 | case P2P_PAF_INVITE_REQ: | |
341 | brcmf_dbg(TRACE, "%s P2P Invitation Request Frame\n", | |
342 | (tx) ? "TX" : "RX"); | |
343 | break; | |
344 | case P2P_PAF_INVITE_RSP: | |
345 | brcmf_dbg(TRACE, "%s P2P Invitation Response Frame\n", | |
346 | (tx) ? "TX" : "RX"); | |
347 | break; | |
348 | case P2P_PAF_DEVDIS_REQ: | |
349 | brcmf_dbg(TRACE, "%s P2P Device Discoverability Request Frame\n", | |
350 | (tx) ? "TX" : "RX"); | |
351 | break; | |
352 | case P2P_PAF_DEVDIS_RSP: | |
353 | brcmf_dbg(TRACE, "%s P2P Device Discoverability Response Frame\n", | |
354 | (tx) ? "TX" : "RX"); | |
355 | break; | |
356 | case P2P_PAF_PROVDIS_REQ: | |
357 | brcmf_dbg(TRACE, "%s P2P Provision Discovery Request Frame\n", | |
358 | (tx) ? "TX" : "RX"); | |
359 | break; | |
360 | case P2P_PAF_PROVDIS_RSP: | |
361 | brcmf_dbg(TRACE, "%s P2P Provision Discovery Response Frame\n", | |
362 | (tx) ? "TX" : "RX"); | |
363 | break; | |
364 | default: | |
365 | brcmf_dbg(TRACE, "%s Unknown P2P Public Action Frame\n", | |
366 | (tx) ? "TX" : "RX"); | |
367 | break; | |
368 | } | |
369 | } else if (brcmf_p2p_is_p2p_action(frame, frame_len)) { | |
370 | act_frm = (struct brcmf_p2p_action_frame *)frame; | |
371 | switch (act_frm->subtype) { | |
372 | case P2P_AF_NOTICE_OF_ABSENCE: | |
373 | brcmf_dbg(TRACE, "%s P2P Notice of Absence Frame\n", | |
374 | (tx) ? "TX" : "RX"); | |
375 | break; | |
376 | case P2P_AF_PRESENCE_REQ: | |
377 | brcmf_dbg(TRACE, "%s P2P Presence Request Frame\n", | |
378 | (tx) ? "TX" : "RX"); | |
379 | break; | |
380 | case P2P_AF_PRESENCE_RSP: | |
381 | brcmf_dbg(TRACE, "%s P2P Presence Response Frame\n", | |
382 | (tx) ? "TX" : "RX"); | |
383 | break; | |
384 | case P2P_AF_GO_DISC_REQ: | |
385 | brcmf_dbg(TRACE, "%s P2P Discoverability Request Frame\n", | |
386 | (tx) ? "TX" : "RX"); | |
387 | break; | |
388 | default: | |
389 | brcmf_dbg(TRACE, "%s Unknown P2P Action Frame\n", | |
390 | (tx) ? "TX" : "RX"); | |
391 | } | |
392 | ||
393 | } else if (brcmf_p2p_is_gas_action(frame, frame_len)) { | |
394 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
395 | switch (sd_act_frm->action) { | |
396 | case P2PSD_ACTION_ID_GAS_IREQ: | |
397 | brcmf_dbg(TRACE, "%s P2P GAS Initial Request\n", | |
398 | (tx) ? "TX" : "RX"); | |
399 | break; | |
400 | case P2PSD_ACTION_ID_GAS_IRESP: | |
401 | brcmf_dbg(TRACE, "%s P2P GAS Initial Response\n", | |
402 | (tx) ? "TX" : "RX"); | |
403 | break; | |
404 | case P2PSD_ACTION_ID_GAS_CREQ: | |
405 | brcmf_dbg(TRACE, "%s P2P GAS Comback Request\n", | |
406 | (tx) ? "TX" : "RX"); | |
407 | break; | |
408 | case P2PSD_ACTION_ID_GAS_CRESP: | |
409 | brcmf_dbg(TRACE, "%s P2P GAS Comback Response\n", | |
410 | (tx) ? "TX" : "RX"); | |
411 | break; | |
412 | default: | |
413 | brcmf_dbg(TRACE, "%s Unknown P2P GAS Frame\n", | |
414 | (tx) ? "TX" : "RX"); | |
415 | break; | |
416 | } | |
417 | } | |
418 | } | |
419 | ||
0a4cf487 HM |
420 | #else |
421 | ||
422 | static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len) | |
423 | { | |
424 | } | |
425 | ||
426 | #endif | |
427 | ||
6eda4e2c | 428 | |
9f440b7b AS |
429 | /** |
430 | * brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation. | |
431 | * | |
2fde59d9 HM |
432 | * @ifp: ifp to use for iovars (primary). |
433 | * @p2p_mac: mac address to configure for p2p_da_override | |
9f440b7b | 434 | */ |
2fde59d9 | 435 | static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac) |
9f440b7b | 436 | { |
9f440b7b AS |
437 | s32 ret = 0; |
438 | ||
27f10e38 | 439 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); |
2fde59d9 | 440 | brcmf_fil_iovar_int_set(ifp, "apsta", 1); |
27f10e38 | 441 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); |
9f440b7b AS |
442 | |
443 | /* In case of COB type, firmware has default mac address | |
444 | * After Initializing firmware, we have to set current mac address to | |
f48556e1 AS |
445 | * firmware for P2P device address. This must be done with discovery |
446 | * disabled. | |
9f440b7b | 447 | */ |
f48556e1 AS |
448 | brcmf_fil_iovar_int_set(ifp, "p2p_disc", 0); |
449 | ||
2fde59d9 HM |
450 | ret = brcmf_fil_iovar_data_set(ifp, "p2p_da_override", p2p_mac, |
451 | ETH_ALEN); | |
9f440b7b AS |
452 | if (ret) |
453 | brcmf_err("failed to update device address ret %d\n", ret); | |
454 | ||
455 | return ret; | |
456 | } | |
457 | ||
458 | /** | |
459 | * brcmf_p2p_generate_bss_mac() - derive mac addresses for P2P. | |
460 | * | |
461 | * @p2p: P2P specific data. | |
27f10e38 | 462 | * @dev_addr: optional device address. |
9f440b7b | 463 | * |
27f10e38 | 464 | * P2P needs mac addresses for P2P device and interface. If no device |
455f3e76 AVS |
465 | * address it specified, these are derived from a random ethernet |
466 | * address. | |
9f440b7b | 467 | */ |
27f10e38 | 468 | static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr) |
9f440b7b | 469 | { |
455f3e76 | 470 | bool random_addr = false; |
27f10e38 | 471 | |
455f3e76 AVS |
472 | if (!dev_addr || is_zero_ether_addr(dev_addr)) |
473 | random_addr = true; | |
2fde59d9 | 474 | |
455f3e76 AVS |
475 | /* Generate the P2P Device Address obtaining a random ethernet |
476 | * address with the locally administered bit set. | |
9f440b7b | 477 | */ |
455f3e76 AVS |
478 | if (random_addr) |
479 | eth_random_addr(p2p->dev_addr); | |
480 | else | |
481 | memcpy(p2p->dev_addr, dev_addr, ETH_ALEN); | |
9f440b7b AS |
482 | |
483 | /* Generate the P2P Interface Address. If the discovery and connection | |
484 | * BSSCFGs need to simultaneously co-exist, then this address must be | |
485 | * different from the P2P Device Address, but also locally administered. | |
486 | */ | |
487 | memcpy(p2p->int_addr, p2p->dev_addr, ETH_ALEN); | |
27f10e38 | 488 | p2p->int_addr[0] |= 0x02; |
9f440b7b AS |
489 | p2p->int_addr[4] ^= 0x80; |
490 | } | |
491 | ||
492 | /** | |
493 | * brcmf_p2p_scan_is_p2p_request() - is cfg80211 scan request a P2P scan. | |
494 | * | |
495 | * @request: the scan request as received from cfg80211. | |
496 | * | |
497 | * returns true if one of the ssids in the request matches the | |
498 | * P2P wildcard ssid; otherwise returns false. | |
499 | */ | |
500 | static bool brcmf_p2p_scan_is_p2p_request(struct cfg80211_scan_request *request) | |
501 | { | |
502 | struct cfg80211_ssid *ssids = request->ssids; | |
503 | int i; | |
504 | ||
505 | for (i = 0; i < request->n_ssids; i++) { | |
506 | if (ssids[i].ssid_len != BRCMF_P2P_WILDCARD_SSID_LEN) | |
507 | continue; | |
508 | ||
509 | brcmf_dbg(INFO, "comparing ssid \"%s\"", ssids[i].ssid); | |
510 | if (!memcmp(BRCMF_P2P_WILDCARD_SSID, ssids[i].ssid, | |
511 | BRCMF_P2P_WILDCARD_SSID_LEN)) | |
512 | return true; | |
513 | } | |
514 | return false; | |
515 | } | |
516 | ||
517 | /** | |
518 | * brcmf_p2p_set_discover_state - set discover state in firmware. | |
519 | * | |
520 | * @ifp: low-level interface object. | |
521 | * @state: discover state to set. | |
522 | * @chanspec: channel parameters (for state @WL_P2P_DISC_ST_LISTEN only). | |
523 | * @listen_ms: duration to listen (for state @WL_P2P_DISC_ST_LISTEN only). | |
524 | */ | |
525 | static s32 brcmf_p2p_set_discover_state(struct brcmf_if *ifp, u8 state, | |
526 | u16 chanspec, u16 listen_ms) | |
527 | { | |
528 | struct brcmf_p2p_disc_st_le discover_state; | |
529 | s32 ret = 0; | |
530 | brcmf_dbg(TRACE, "enter\n"); | |
531 | ||
532 | discover_state.state = state; | |
533 | discover_state.chspec = cpu_to_le16(chanspec); | |
534 | discover_state.dwell = cpu_to_le16(listen_ms); | |
535 | ret = brcmf_fil_bsscfg_data_set(ifp, "p2p_state", &discover_state, | |
536 | sizeof(discover_state)); | |
537 | return ret; | |
538 | } | |
539 | ||
9f440b7b AS |
540 | /** |
541 | * brcmf_p2p_deinit_discovery() - disable P2P device discovery. | |
542 | * | |
543 | * @p2p: P2P specific data. | |
544 | * | |
2fde59d9 | 545 | * Resets the discovery state and disables it in firmware. |
9f440b7b AS |
546 | */ |
547 | static s32 brcmf_p2p_deinit_discovery(struct brcmf_p2p_info *p2p) | |
548 | { | |
2fde59d9 | 549 | struct brcmf_cfg80211_vif *vif; |
9f440b7b | 550 | |
2fde59d9 | 551 | brcmf_dbg(TRACE, "enter\n"); |
9f440b7b AS |
552 | |
553 | /* Set the discovery state to SCAN */ | |
2fde59d9 HM |
554 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
555 | (void)brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
9f440b7b AS |
556 | |
557 | /* Disable P2P discovery in the firmware */ | |
2fde59d9 HM |
558 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; |
559 | (void)brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 0); | |
9f440b7b AS |
560 | |
561 | return 0; | |
562 | } | |
563 | ||
564 | /** | |
565 | * brcmf_p2p_enable_discovery() - initialize and configure discovery. | |
566 | * | |
567 | * @p2p: P2P specific data. | |
9f440b7b AS |
568 | * |
569 | * Initializes the discovery device and configure the virtual interface. | |
570 | */ | |
0de8aace | 571 | static int brcmf_p2p_enable_discovery(struct brcmf_p2p_info *p2p) |
9f440b7b AS |
572 | { |
573 | struct brcmf_cfg80211_vif *vif; | |
574 | s32 ret = 0; | |
575 | ||
576 | brcmf_dbg(TRACE, "enter\n"); | |
577 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
2fde59d9 HM |
578 | if (!vif) { |
579 | brcmf_err("P2P config device not available\n"); | |
580 | ret = -EPERM; | |
0de8aace | 581 | goto exit; |
9f440b7b AS |
582 | } |
583 | ||
2fde59d9 HM |
584 | if (test_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status)) { |
585 | brcmf_dbg(INFO, "P2P config device already configured\n"); | |
9f440b7b AS |
586 | goto exit; |
587 | } | |
588 | ||
2fde59d9 HM |
589 | /* Re-initialize P2P Discovery in the firmware */ |
590 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
591 | ret = brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 1); | |
592 | if (ret < 0) { | |
593 | brcmf_err("set p2p_disc error\n"); | |
594 | goto exit; | |
595 | } | |
9f440b7b | 596 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
2fde59d9 HM |
597 | ret = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); |
598 | if (ret < 0) { | |
599 | brcmf_err("unable to set WL_P2P_DISC_ST_SCAN\n"); | |
600 | goto exit; | |
601 | } | |
9f440b7b AS |
602 | |
603 | /* | |
604 | * Set wsec to any non-zero value in the discovery bsscfg | |
605 | * to ensure our P2P probe responses have the privacy bit | |
606 | * set in the 802.11 WPA IE. Some peer devices may not | |
607 | * initiate WPS with us if this bit is not set. | |
608 | */ | |
609 | ret = brcmf_fil_bsscfg_int_set(vif->ifp, "wsec", AES_ENABLED); | |
2fde59d9 | 610 | if (ret < 0) { |
9f440b7b | 611 | brcmf_err("wsec error %d\n", ret); |
2fde59d9 HM |
612 | goto exit; |
613 | } | |
9f440b7b | 614 | |
2fde59d9 | 615 | set_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status); |
9f440b7b AS |
616 | exit: |
617 | return ret; | |
618 | } | |
619 | ||
0de8aace | 620 | /** |
9f440b7b AS |
621 | * brcmf_p2p_escan() - initiate a P2P scan. |
622 | * | |
623 | * @p2p: P2P specific data. | |
624 | * @num_chans: number of channels to scan. | |
625 | * @chanspecs: channel parameters for @num_chans channels. | |
626 | * @search_state: P2P discover state to use. | |
9f440b7b AS |
627 | * @bss_type: type of P2P bss. |
628 | */ | |
629 | static s32 brcmf_p2p_escan(struct brcmf_p2p_info *p2p, u32 num_chans, | |
c4958106 | 630 | u16 chanspecs[], s32 search_state, |
9f440b7b AS |
631 | enum p2p_bss_type bss_type) |
632 | { | |
633 | s32 ret = 0; | |
634 | s32 memsize = offsetof(struct brcmf_p2p_scan_le, | |
635 | eparams.params_le.channel_list); | |
636 | s32 nprobes; | |
637 | s32 active; | |
638 | u32 i; | |
639 | u8 *memblk; | |
640 | struct brcmf_cfg80211_vif *vif; | |
641 | struct brcmf_p2p_scan_le *p2p_params; | |
642 | struct brcmf_scan_params_le *sparams; | |
9f440b7b | 643 | |
9f440b7b AS |
644 | memsize += num_chans * sizeof(__le16); |
645 | memblk = kzalloc(memsize, GFP_KERNEL); | |
646 | if (!memblk) | |
647 | return -ENOMEM; | |
648 | ||
649 | vif = p2p->bss_idx[bss_type].vif; | |
650 | if (vif == NULL) { | |
651 | brcmf_err("no vif for bss type %d\n", bss_type); | |
652 | ret = -EINVAL; | |
653 | goto exit; | |
654 | } | |
e9a6ca82 HM |
655 | p2p_params = (struct brcmf_p2p_scan_le *)memblk; |
656 | sparams = &p2p_params->eparams.params_le; | |
9f440b7b AS |
657 | |
658 | switch (search_state) { | |
659 | case WL_P2P_DISC_ST_SEARCH: | |
660 | /* | |
661 | * If we in SEARCH STATE, we don't need to set SSID explictly | |
e9a6ca82 HM |
662 | * because dongle use P2P WILDCARD internally by default, use |
663 | * null ssid, which it is already due to kzalloc. | |
9f440b7b | 664 | */ |
9f440b7b AS |
665 | break; |
666 | case WL_P2P_DISC_ST_SCAN: | |
667 | /* | |
668 | * wpa_supplicant has p2p_find command with type social or | |
669 | * progressive. For progressive, we need to set the ssid to | |
670 | * P2P WILDCARD because we just do broadcast scan unless | |
671 | * setting SSID. | |
672 | */ | |
e9a6ca82 HM |
673 | sparams->ssid_le.SSID_len = |
674 | cpu_to_le32(BRCMF_P2P_WILDCARD_SSID_LEN); | |
675 | memcpy(sparams->ssid_le.SSID, BRCMF_P2P_WILDCARD_SSID, | |
676 | BRCMF_P2P_WILDCARD_SSID_LEN); | |
9f440b7b AS |
677 | break; |
678 | default: | |
679 | brcmf_err(" invalid search state %d\n", search_state); | |
680 | ret = -EINVAL; | |
681 | goto exit; | |
682 | } | |
683 | ||
684 | brcmf_p2p_set_discover_state(vif->ifp, search_state, 0, 0); | |
685 | ||
686 | /* | |
687 | * set p2p scan parameters. | |
688 | */ | |
9f440b7b AS |
689 | p2p_params->type = 'E'; |
690 | ||
691 | /* determine the scan engine parameters */ | |
9f440b7b | 692 | sparams->bss_type = DOT11_BSSTYPE_ANY; |
bbf35414 | 693 | sparams->scan_type = BRCMF_SCANTYPE_ACTIVE; |
9f440b7b | 694 | |
93803b33 | 695 | eth_broadcast_addr(sparams->bssid); |
9f440b7b AS |
696 | sparams->home_time = cpu_to_le32(P2PAPI_SCAN_HOME_TIME_MS); |
697 | ||
698 | /* | |
699 | * SOCIAL_CHAN_CNT + 1 takes care of the Progressive scan | |
700 | * supported by the supplicant. | |
701 | */ | |
702 | if (num_chans == SOCIAL_CHAN_CNT || num_chans == (SOCIAL_CHAN_CNT + 1)) | |
703 | active = P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS; | |
704 | else if (num_chans == AF_PEER_SEARCH_CNT) | |
705 | active = P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS; | |
e843bb19 | 706 | else if (brcmf_get_vif_state_any(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED)) |
9f440b7b AS |
707 | active = -1; |
708 | else | |
709 | active = P2PAPI_SCAN_DWELL_TIME_MS; | |
710 | ||
711 | /* Override scan params to find a peer for a connection */ | |
712 | if (num_chans == 1) { | |
713 | active = WL_SCAN_CONNECT_DWELL_TIME_MS; | |
18e2f61d | 714 | /* WAR to sync with presence period of VSDB GO. |
9f440b7b AS |
715 | * send probe request more frequently |
716 | */ | |
717 | nprobes = active / WL_SCAN_JOIN_PROBE_INTERVAL_MS; | |
718 | } else { | |
719 | nprobes = active / P2PAPI_SCAN_NPROBS_TIME_MS; | |
720 | } | |
721 | ||
722 | if (nprobes <= 0) | |
723 | nprobes = 1; | |
724 | ||
725 | brcmf_dbg(INFO, "nprobes # %d, active_time %d\n", nprobes, active); | |
726 | sparams->active_time = cpu_to_le32(active); | |
727 | sparams->nprobes = cpu_to_le32(nprobes); | |
728 | sparams->passive_time = cpu_to_le32(-1); | |
729 | sparams->channel_num = cpu_to_le32(num_chans & | |
730 | BRCMF_SCAN_PARAMS_COUNT_MASK); | |
731 | for (i = 0; i < num_chans; i++) | |
732 | sparams->channel_list[i] = cpu_to_le16(chanspecs[i]); | |
733 | ||
734 | /* set the escan specific parameters */ | |
735 | p2p_params->eparams.version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION); | |
c4958106 | 736 | p2p_params->eparams.action = cpu_to_le16(WL_ESCAN_ACTION_START); |
9f440b7b AS |
737 | p2p_params->eparams.sync_id = cpu_to_le16(0x1234); |
738 | /* perform p2p scan on primary device */ | |
739 | ret = brcmf_fil_bsscfg_data_set(vif->ifp, "p2p_scan", memblk, memsize); | |
740 | if (!ret) | |
741 | set_bit(BRCMF_SCAN_STATUS_BUSY, &p2p->cfg->scan_status); | |
742 | exit: | |
743 | kfree(memblk); | |
744 | return ret; | |
745 | } | |
746 | ||
747 | /** | |
748 | * brcmf_p2p_run_escan() - escan callback for peer-to-peer. | |
749 | * | |
750 | * @cfg: driver private data for cfg80211 interface. | |
751 | * @ndev: net device for which scan is requested. | |
752 | * @request: scan request from cfg80211. | |
753 | * @action: scan action. | |
754 | * | |
755 | * Determines the P2P discovery state based to scan request parameters and | |
756 | * validates the channels in the request. | |
757 | */ | |
758 | static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg, | |
a0f472ac | 759 | struct brcmf_if *ifp, |
c4958106 | 760 | struct cfg80211_scan_request *request) |
9f440b7b AS |
761 | { |
762 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
763 | s32 err = 0; | |
764 | s32 search_state = WL_P2P_DISC_ST_SCAN; | |
765 | struct brcmf_cfg80211_vif *vif; | |
766 | struct net_device *dev = NULL; | |
767 | int i, num_nodfs = 0; | |
768 | u16 *chanspecs; | |
769 | ||
770 | brcmf_dbg(TRACE, "enter\n"); | |
771 | ||
772 | if (!request) { | |
773 | err = -EINVAL; | |
774 | goto exit; | |
775 | } | |
776 | ||
777 | if (request->n_channels) { | |
778 | chanspecs = kcalloc(request->n_channels, sizeof(*chanspecs), | |
779 | GFP_KERNEL); | |
780 | if (!chanspecs) { | |
781 | err = -ENOMEM; | |
782 | goto exit; | |
783 | } | |
784 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; | |
785 | if (vif) | |
786 | dev = vif->wdev.netdev; | |
787 | if (request->n_channels == 3 && | |
788 | request->channels[0]->hw_value == SOCIAL_CHAN_1 && | |
789 | request->channels[1]->hw_value == SOCIAL_CHAN_2 && | |
790 | request->channels[2]->hw_value == SOCIAL_CHAN_3) { | |
791 | /* SOCIAL CHANNELS 1, 6, 11 */ | |
792 | search_state = WL_P2P_DISC_ST_SEARCH; | |
793 | brcmf_dbg(INFO, "P2P SEARCH PHASE START\n"); | |
967fe2c8 AS |
794 | } else if (dev != NULL && |
795 | vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { | |
9f440b7b AS |
796 | /* If you are already a GO, then do SEARCH only */ |
797 | brcmf_dbg(INFO, "Already a GO. Do SEARCH Only\n"); | |
798 | search_state = WL_P2P_DISC_ST_SEARCH; | |
799 | } else { | |
800 | brcmf_dbg(INFO, "P2P SCAN STATE START\n"); | |
801 | } | |
802 | ||
803 | /* | |
804 | * no P2P scanning on passive or DFS channels. | |
805 | */ | |
806 | for (i = 0; i < request->n_channels; i++) { | |
807 | struct ieee80211_channel *chan = request->channels[i]; | |
808 | ||
809 | if (chan->flags & (IEEE80211_CHAN_RADAR | | |
8fe02e16 | 810 | IEEE80211_CHAN_NO_IR)) |
9f440b7b AS |
811 | continue; |
812 | ||
83cf17aa FL |
813 | chanspecs[i] = channel_to_chanspec(&p2p->cfg->d11inf, |
814 | chan); | |
9f440b7b AS |
815 | brcmf_dbg(INFO, "%d: chan=%d, channel spec=%x\n", |
816 | num_nodfs, chan->hw_value, chanspecs[i]); | |
817 | num_nodfs++; | |
818 | } | |
819 | err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state, | |
c4958106 | 820 | P2PAPI_BSSCFG_DEVICE); |
3b1bace9 | 821 | kfree(chanspecs); |
9f440b7b AS |
822 | } |
823 | exit: | |
824 | if (err) | |
825 | brcmf_err("error (%d)\n", err); | |
826 | return err; | |
827 | } | |
828 | ||
6eda4e2c HM |
829 | |
830 | /** | |
831 | * brcmf_p2p_find_listen_channel() - find listen channel in ie string. | |
832 | * | |
833 | * @ie: string of information elements. | |
834 | * @ie_len: length of string. | |
835 | * | |
836 | * Scan ie for p2p ie and look for attribute 6 channel. If available determine | |
837 | * channel and return it. | |
838 | */ | |
839 | static s32 brcmf_p2p_find_listen_channel(const u8 *ie, u32 ie_len) | |
840 | { | |
841 | u8 channel_ie[5]; | |
842 | s32 listen_channel; | |
843 | s32 err; | |
844 | ||
845 | err = cfg80211_get_p2p_attr(ie, ie_len, | |
846 | IEEE80211_P2P_ATTR_LISTEN_CHANNEL, | |
847 | channel_ie, sizeof(channel_ie)); | |
848 | if (err < 0) | |
849 | return err; | |
850 | ||
851 | /* listen channel subel length format: */ | |
852 | /* 3(country) + 1(op. class) + 1(chan num) */ | |
853 | listen_channel = (s32)channel_ie[3 + 1]; | |
854 | ||
855 | if (listen_channel == SOCIAL_CHAN_1 || | |
856 | listen_channel == SOCIAL_CHAN_2 || | |
857 | listen_channel == SOCIAL_CHAN_3) { | |
858 | brcmf_dbg(INFO, "Found my Listen Channel %d\n", listen_channel); | |
859 | return listen_channel; | |
860 | } | |
861 | ||
862 | return -EPERM; | |
863 | } | |
864 | ||
865 | ||
9f440b7b AS |
866 | /** |
867 | * brcmf_p2p_scan_prep() - prepare scan based on request. | |
868 | * | |
869 | * @wiphy: wiphy device. | |
870 | * @request: scan request from cfg80211. | |
0f8ffe17 | 871 | * @vif: vif on which scan request is to be executed. |
9f440b7b AS |
872 | * |
873 | * Prepare the scan appropriately for type of scan requested. Overrides the | |
874 | * escan .run() callback for peer-to-peer scanning. | |
875 | */ | |
876 | int brcmf_p2p_scan_prep(struct wiphy *wiphy, | |
0f8ffe17 HM |
877 | struct cfg80211_scan_request *request, |
878 | struct brcmf_cfg80211_vif *vif) | |
9f440b7b AS |
879 | { |
880 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
881 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
bd99a301 | 882 | int err; |
9f440b7b AS |
883 | |
884 | if (brcmf_p2p_scan_is_p2p_request(request)) { | |
885 | /* find my listen channel */ | |
6eda4e2c HM |
886 | err = brcmf_p2p_find_listen_channel(request->ie, |
887 | request->ie_len); | |
9f440b7b AS |
888 | if (err < 0) |
889 | return err; | |
890 | ||
6eda4e2c HM |
891 | p2p->afx_hdl.my_listen_chan = err; |
892 | ||
9f440b7b AS |
893 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
894 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
895 | ||
0de8aace | 896 | err = brcmf_p2p_enable_discovery(p2p); |
0f8ffe17 HM |
897 | if (err) |
898 | return err; | |
9f440b7b | 899 | |
0f8ffe17 | 900 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
9f440b7b | 901 | |
0f8ffe17 HM |
902 | /* override .run_escan() callback. */ |
903 | cfg->escan_info.run = brcmf_p2p_run_escan; | |
9f440b7b | 904 | } |
bd99a301 | 905 | return 0; |
9f440b7b AS |
906 | } |
907 | ||
0de8aace | 908 | |
f2058dde HM |
909 | /** |
910 | * brcmf_p2p_discover_listen() - set firmware to discover listen state. | |
911 | * | |
912 | * @p2p: p2p device. | |
6eda4e2c HM |
913 | * @channel: channel nr for discover listen. |
914 | * @duration: time in ms to stay on channel. | |
f2058dde HM |
915 | * |
916 | */ | |
917 | static s32 | |
6eda4e2c | 918 | brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration) |
f2058dde HM |
919 | { |
920 | struct brcmf_cfg80211_vif *vif; | |
83cf17aa | 921 | struct brcmu_chan ch; |
f2058dde | 922 | s32 err = 0; |
f2058dde HM |
923 | |
924 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
925 | if (!vif) { | |
926 | brcmf_err("Discovery is not set, so we have nothing to do\n"); | |
927 | err = -EPERM; | |
928 | goto exit; | |
929 | } | |
930 | ||
931 | if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status)) { | |
932 | brcmf_err("Previous LISTEN is not completed yet\n"); | |
933 | /* WAR: prevent cookie mismatch in wpa_supplicant return OK */ | |
934 | goto exit; | |
935 | } | |
936 | ||
83cf17aa FL |
937 | ch.chnum = channel; |
938 | ch.bw = BRCMU_CHAN_BW_20; | |
939 | p2p->cfg->d11inf.encchspec(&ch); | |
f2058dde | 940 | err = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_LISTEN, |
83cf17aa | 941 | ch.chspec, (u16)duration); |
f2058dde HM |
942 | if (!err) { |
943 | set_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status); | |
944 | p2p->remain_on_channel_cookie++; | |
945 | } | |
946 | exit: | |
947 | return err; | |
948 | } | |
949 | ||
950 | ||
0de8aace HM |
951 | /** |
952 | * brcmf_p2p_remain_on_channel() - put device on channel and stay there. | |
953 | * | |
954 | * @wiphy: wiphy device. | |
955 | * @channel: channel to stay on. | |
956 | * @duration: time in ms to remain on channel. | |
957 | * | |
958 | */ | |
959 | int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, | |
960 | struct ieee80211_channel *channel, | |
961 | unsigned int duration, u64 *cookie) | |
962 | { | |
963 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
964 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
0de8aace | 965 | s32 err; |
6eda4e2c | 966 | u16 channel_nr; |
0de8aace | 967 | |
6eda4e2c HM |
968 | channel_nr = ieee80211_frequency_to_channel(channel->center_freq); |
969 | brcmf_dbg(TRACE, "Enter, channel: %d, duration ms (%d)\n", channel_nr, | |
0de8aace HM |
970 | duration); |
971 | ||
0de8aace HM |
972 | err = brcmf_p2p_enable_discovery(p2p); |
973 | if (err) | |
974 | goto exit; | |
6eda4e2c | 975 | err = brcmf_p2p_discover_listen(p2p, channel_nr, duration); |
0de8aace HM |
976 | if (err) |
977 | goto exit; | |
978 | ||
f2058dde HM |
979 | memcpy(&p2p->remain_on_channel, channel, sizeof(*channel)); |
980 | *cookie = p2p->remain_on_channel_cookie; | |
1ce3086c | 981 | cfg80211_ready_on_channel(wdev, *cookie, channel, duration, GFP_KERNEL); |
0de8aace HM |
982 | |
983 | exit: | |
0de8aace HM |
984 | return err; |
985 | } | |
986 | ||
987 | ||
988 | /** | |
989 | * brcmf_p2p_notify_listen_complete() - p2p listen has completed. | |
990 | * | |
991 | * @ifp: interfac control. | |
992 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
993 | * @data: payload of message. Not used. | |
994 | * | |
995 | */ | |
996 | int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp, | |
997 | const struct brcmf_event_msg *e, | |
998 | void *data) | |
999 | { | |
1000 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1001 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1002 | ||
1003 | brcmf_dbg(TRACE, "Enter\n"); | |
f2058dde | 1004 | if (test_and_clear_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, |
6eda4e2c HM |
1005 | &p2p->status)) { |
1006 | if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1007 | &p2p->status)) { | |
1008 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1009 | &p2p->status); | |
1010 | brcmf_dbg(INFO, "Listen DONE, wake up wait_next_af\n"); | |
1011 | complete(&p2p->wait_next_af); | |
1012 | } | |
1013 | ||
f2058dde HM |
1014 | cfg80211_remain_on_channel_expired(&ifp->vif->wdev, |
1015 | p2p->remain_on_channel_cookie, | |
0de8aace HM |
1016 | &p2p->remain_on_channel, |
1017 | GFP_KERNEL); | |
6eda4e2c | 1018 | } |
0de8aace HM |
1019 | return 0; |
1020 | } | |
1021 | ||
1022 | ||
1023 | /** | |
1024 | * brcmf_p2p_cancel_remain_on_channel() - cancel p2p listen state. | |
1025 | * | |
1026 | * @ifp: interfac control. | |
1027 | * | |
1028 | */ | |
1029 | void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp) | |
1030 | { | |
1031 | if (!ifp) | |
1032 | return; | |
1033 | brcmf_p2p_set_discover_state(ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
1034 | brcmf_p2p_notify_listen_complete(ifp, NULL, NULL); | |
1035 | } | |
1036 | ||
1037 | ||
6eda4e2c HM |
1038 | /** |
1039 | * brcmf_p2p_act_frm_search() - search function for action frame. | |
1040 | * | |
1041 | * @p2p: p2p device. | |
1042 | * channel: channel on which action frame is to be trasmitted. | |
1043 | * | |
1044 | * search function to reach at common channel to send action frame. When | |
1045 | * channel is 0 then all social channels will be used to send af | |
1046 | */ | |
1047 | static s32 brcmf_p2p_act_frm_search(struct brcmf_p2p_info *p2p, u16 channel) | |
1048 | { | |
1049 | s32 err; | |
1050 | u32 channel_cnt; | |
1051 | u16 *default_chan_list; | |
1052 | u32 i; | |
83cf17aa | 1053 | struct brcmu_chan ch; |
6eda4e2c HM |
1054 | |
1055 | brcmf_dbg(TRACE, "Enter\n"); | |
1056 | ||
1057 | if (channel) | |
1058 | channel_cnt = AF_PEER_SEARCH_CNT; | |
1059 | else | |
1060 | channel_cnt = SOCIAL_CHAN_CNT; | |
6396bb22 | 1061 | default_chan_list = kcalloc(channel_cnt, sizeof(*default_chan_list), |
6eda4e2c HM |
1062 | GFP_KERNEL); |
1063 | if (default_chan_list == NULL) { | |
1064 | brcmf_err("channel list allocation failed\n"); | |
1065 | err = -ENOMEM; | |
1066 | goto exit; | |
1067 | } | |
83cf17aa | 1068 | ch.bw = BRCMU_CHAN_BW_20; |
6eda4e2c | 1069 | if (channel) { |
83cf17aa FL |
1070 | ch.chnum = channel; |
1071 | p2p->cfg->d11inf.encchspec(&ch); | |
6eda4e2c HM |
1072 | /* insert same channel to the chan_list */ |
1073 | for (i = 0; i < channel_cnt; i++) | |
83cf17aa | 1074 | default_chan_list[i] = ch.chspec; |
6eda4e2c | 1075 | } else { |
83cf17aa FL |
1076 | ch.chnum = SOCIAL_CHAN_1; |
1077 | p2p->cfg->d11inf.encchspec(&ch); | |
1078 | default_chan_list[0] = ch.chspec; | |
1079 | ch.chnum = SOCIAL_CHAN_2; | |
1080 | p2p->cfg->d11inf.encchspec(&ch); | |
1081 | default_chan_list[1] = ch.chspec; | |
1082 | ch.chnum = SOCIAL_CHAN_3; | |
1083 | p2p->cfg->d11inf.encchspec(&ch); | |
1084 | default_chan_list[2] = ch.chspec; | |
6eda4e2c HM |
1085 | } |
1086 | err = brcmf_p2p_escan(p2p, channel_cnt, default_chan_list, | |
c4958106 | 1087 | WL_P2P_DISC_ST_SEARCH, P2PAPI_BSSCFG_DEVICE); |
6eda4e2c HM |
1088 | kfree(default_chan_list); |
1089 | exit: | |
1090 | return err; | |
1091 | } | |
1092 | ||
1093 | ||
1094 | /** | |
1095 | * brcmf_p2p_afx_handler() - afx worker thread. | |
1096 | * | |
1097 | * @work: | |
1098 | * | |
1099 | */ | |
1100 | static void brcmf_p2p_afx_handler(struct work_struct *work) | |
1101 | { | |
1102 | struct afx_hdl *afx_hdl = container_of(work, struct afx_hdl, afx_work); | |
1103 | struct brcmf_p2p_info *p2p = container_of(afx_hdl, | |
1104 | struct brcmf_p2p_info, | |
1105 | afx_hdl); | |
1106 | s32 err; | |
1107 | ||
1108 | if (!afx_hdl->is_active) | |
1109 | return; | |
1110 | ||
1111 | if (afx_hdl->is_listen && afx_hdl->my_listen_chan) | |
1112 | /* 100ms ~ 300ms */ | |
1113 | err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan, | |
e00adf39 | 1114 | 100 * (1 + prandom_u32() % 3)); |
6eda4e2c HM |
1115 | else |
1116 | err = brcmf_p2p_act_frm_search(p2p, afx_hdl->peer_listen_chan); | |
1117 | ||
1118 | if (err) { | |
1119 | brcmf_err("ERROR occurred! value is (%d)\n", err); | |
1120 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1121 | &p2p->status)) | |
1122 | complete(&afx_hdl->act_frm_scan); | |
1123 | } | |
1124 | } | |
1125 | ||
1126 | ||
1127 | /** | |
1128 | * brcmf_p2p_af_searching_channel() - search channel. | |
1129 | * | |
1130 | * @p2p: p2p device info struct. | |
1131 | * | |
1132 | */ | |
1133 | static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p) | |
1134 | { | |
1135 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
1136 | struct brcmf_cfg80211_vif *pri_vif; | |
1137 | unsigned long duration; | |
1138 | s32 retry; | |
1139 | ||
1140 | brcmf_dbg(TRACE, "Enter\n"); | |
1141 | ||
1142 | pri_vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
1143 | ||
16735d02 | 1144 | reinit_completion(&afx_hdl->act_frm_scan); |
6eda4e2c HM |
1145 | set_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status); |
1146 | afx_hdl->is_active = true; | |
1147 | afx_hdl->peer_chan = P2P_INVALID_CHANNEL; | |
1148 | ||
1149 | /* Loop to wait until we find a peer's channel or the | |
1150 | * pending action frame tx is cancelled. | |
1151 | */ | |
1152 | retry = 0; | |
1153 | duration = msecs_to_jiffies(P2P_AF_FRM_SCAN_MAX_WAIT); | |
1154 | while ((retry < P2P_CHANNEL_SYNC_RETRY) && | |
1155 | (afx_hdl->peer_chan == P2P_INVALID_CHANNEL)) { | |
1156 | afx_hdl->is_listen = false; | |
1157 | brcmf_dbg(TRACE, "Scheduling action frame for sending.. (%d)\n", | |
1158 | retry); | |
1159 | /* search peer on peer's listen channel */ | |
1160 | schedule_work(&afx_hdl->afx_work); | |
1161 | wait_for_completion_timeout(&afx_hdl->act_frm_scan, duration); | |
1162 | if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) || | |
1163 | (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1164 | &p2p->status))) | |
1165 | break; | |
1166 | ||
1167 | if (afx_hdl->my_listen_chan) { | |
1168 | brcmf_dbg(TRACE, "Scheduling listen peer, channel=%d\n", | |
1169 | afx_hdl->my_listen_chan); | |
1170 | /* listen on my listen channel */ | |
1171 | afx_hdl->is_listen = true; | |
1172 | schedule_work(&afx_hdl->afx_work); | |
1173 | wait_for_completion_timeout(&afx_hdl->act_frm_scan, | |
1174 | duration); | |
1175 | } | |
1176 | if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) || | |
1177 | (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1178 | &p2p->status))) | |
1179 | break; | |
1180 | retry++; | |
1181 | ||
1182 | /* if sta is connected or connecting, sleep for a while before | |
1183 | * retry af tx or finding a peer | |
1184 | */ | |
1185 | if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &pri_vif->sme_state) || | |
1186 | test_bit(BRCMF_VIF_STATUS_CONNECTING, &pri_vif->sme_state)) | |
1187 | msleep(P2P_DEFAULT_SLEEP_TIME_VSDB); | |
1188 | } | |
1189 | ||
1190 | brcmf_dbg(TRACE, "Completed search/listen peer_chan=%d\n", | |
1191 | afx_hdl->peer_chan); | |
1192 | afx_hdl->is_active = false; | |
1193 | ||
1194 | clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status); | |
1195 | ||
1196 | return afx_hdl->peer_chan; | |
1197 | } | |
1198 | ||
1199 | ||
1200 | /** | |
1201 | * brcmf_p2p_scan_finding_common_channel() - was escan used for finding channel | |
1202 | * | |
1203 | * @cfg: common configuration struct. | |
1204 | * @bi: bss info struct, result from scan. | |
1205 | * | |
1206 | */ | |
1207 | bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg, | |
1208 | struct brcmf_bss_info_le *bi) | |
1209 | ||
1210 | { | |
1211 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1212 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
83cf17aa | 1213 | struct brcmu_chan ch; |
6eda4e2c HM |
1214 | u8 *ie; |
1215 | s32 err; | |
1216 | u8 p2p_dev_addr[ETH_ALEN]; | |
1217 | ||
1218 | if (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status)) | |
1219 | return false; | |
1220 | ||
1221 | if (bi == NULL) { | |
1222 | brcmf_dbg(TRACE, "ACTION FRAME SCAN Done\n"); | |
1223 | if (afx_hdl->peer_chan == P2P_INVALID_CHANNEL) | |
1224 | complete(&afx_hdl->act_frm_scan); | |
1225 | return true; | |
1226 | } | |
1227 | ||
1228 | ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); | |
1229 | memset(p2p_dev_addr, 0, sizeof(p2p_dev_addr)); | |
1230 | err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length), | |
1231 | IEEE80211_P2P_ATTR_DEVICE_INFO, | |
1232 | p2p_dev_addr, sizeof(p2p_dev_addr)); | |
1233 | if (err < 0) | |
1234 | err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length), | |
1235 | IEEE80211_P2P_ATTR_DEVICE_ID, | |
1236 | p2p_dev_addr, sizeof(p2p_dev_addr)); | |
1237 | if ((err >= 0) && | |
692e5167 | 1238 | (ether_addr_equal(p2p_dev_addr, afx_hdl->tx_dst_addr))) { |
83cf17aa FL |
1239 | if (!bi->ctl_ch) { |
1240 | ch.chspec = le16_to_cpu(bi->chanspec); | |
1241 | cfg->d11inf.decchspec(&ch); | |
4712d88a | 1242 | bi->ctl_ch = ch.control_ch_num; |
83cf17aa FL |
1243 | } |
1244 | afx_hdl->peer_chan = bi->ctl_ch; | |
6eda4e2c HM |
1245 | brcmf_dbg(TRACE, "ACTION FRAME SCAN : Peer %pM found, channel : %d\n", |
1246 | afx_hdl->tx_dst_addr, afx_hdl->peer_chan); | |
1247 | complete(&afx_hdl->act_frm_scan); | |
1248 | } | |
1249 | return true; | |
1250 | } | |
1251 | ||
1252 | /** | |
1253 | * brcmf_p2p_stop_wait_next_action_frame() - finish scan if af tx complete. | |
1254 | * | |
1255 | * @cfg: common configuration struct. | |
1256 | * | |
1257 | */ | |
1258 | static void | |
1259 | brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg) | |
1260 | { | |
1261 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2aec2c9d | 1262 | struct brcmf_if *ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
6eda4e2c HM |
1263 | |
1264 | if (test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status) && | |
1265 | (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status) || | |
1266 | test_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status))) { | |
1267 | brcmf_dbg(TRACE, "*** Wake UP ** abort actframe iovar\n"); | |
1268 | /* if channel is not zero, "actfame" uses off channel scan. | |
1269 | * So abort scan for off channel completion. | |
1270 | */ | |
1271 | if (p2p->af_sent_channel) | |
a0f472ac | 1272 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1273 | } else if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, |
1274 | &p2p->status)) { | |
1275 | brcmf_dbg(TRACE, "*** Wake UP ** abort listen for next af frame\n"); | |
1276 | /* So abort scan to cancel listen */ | |
a0f472ac | 1277 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1278 | } |
1279 | } | |
1280 | ||
1281 | ||
1282 | /** | |
1283 | * brcmf_p2p_gon_req_collision() - Check if go negotiaton collission | |
1284 | * | |
1285 | * @p2p: p2p device info struct. | |
1286 | * | |
1287 | * return true if recevied action frame is to be dropped. | |
1288 | */ | |
1289 | static bool | |
1290 | brcmf_p2p_gon_req_collision(struct brcmf_p2p_info *p2p, u8 *mac) | |
1291 | { | |
1292 | struct brcmf_cfg80211_info *cfg = p2p->cfg; | |
1293 | struct brcmf_if *ifp; | |
1294 | ||
1295 | brcmf_dbg(TRACE, "Enter\n"); | |
1296 | ||
1297 | if (!test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) || | |
1298 | !p2p->gon_req_action) | |
1299 | return false; | |
1300 | ||
1301 | brcmf_dbg(TRACE, "GO Negotiation Request COLLISION !!!\n"); | |
1302 | /* if sa(peer) addr is less than da(my) addr, then this device | |
1303 | * process peer's gon request and block to send gon req. | |
1304 | * if not (sa addr > da addr), | |
1305 | * this device will process gon request and drop gon req of peer. | |
1306 | */ | |
1307 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp; | |
1308 | if (memcmp(mac, ifp->mac_addr, ETH_ALEN) < 0) { | |
1309 | brcmf_dbg(INFO, "Block transmit gon req !!!\n"); | |
1310 | p2p->block_gon_req_tx = true; | |
1311 | /* if we are finding a common channel for sending af, | |
1312 | * do not scan more to block to send current gon req | |
1313 | */ | |
1314 | if (test_and_clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1315 | &p2p->status)) | |
1316 | complete(&p2p->afx_hdl.act_frm_scan); | |
1317 | if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1318 | &p2p->status)) | |
1319 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1320 | return false; | |
1321 | } | |
1322 | ||
1323 | /* drop gon request of peer to process gon request by this device. */ | |
1324 | brcmf_dbg(INFO, "Drop received gon req !!!\n"); | |
1325 | ||
1326 | return true; | |
1327 | } | |
1328 | ||
1329 | ||
e6da3400 HM |
1330 | /** |
1331 | * brcmf_p2p_notify_action_frame_rx() - received action frame. | |
1332 | * | |
1333 | * @ifp: interfac control. | |
1334 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1335 | * @data: payload of message, containing action frame data. | |
1336 | * | |
1337 | */ | |
1338 | int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp, | |
1339 | const struct brcmf_event_msg *e, | |
1340 | void *data) | |
1341 | { | |
6eda4e2c HM |
1342 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; |
1343 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1344 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
e6da3400 HM |
1345 | struct wireless_dev *wdev; |
1346 | u32 mgmt_frame_len = e->datalen - sizeof(struct brcmf_rx_mgmt_data); | |
1347 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
6eda4e2c HM |
1348 | u8 *frame = (u8 *)(rxframe + 1); |
1349 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1350 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
83cf17aa | 1351 | struct brcmu_chan ch; |
e6da3400 | 1352 | struct ieee80211_mgmt *mgmt_frame; |
e6da3400 HM |
1353 | s32 freq; |
1354 | u16 mgmt_type; | |
6eda4e2c | 1355 | u8 action; |
e6da3400 | 1356 | |
0aedbcaf HM |
1357 | if (e->datalen < sizeof(*rxframe)) { |
1358 | brcmf_dbg(SCAN, "Event data to small. Ignore\n"); | |
1359 | return 0; | |
1360 | } | |
1361 | ||
83cf17aa FL |
1362 | ch.chspec = be16_to_cpu(rxframe->chanspec); |
1363 | cfg->d11inf.decchspec(&ch); | |
e6da3400 HM |
1364 | /* Check if wpa_supplicant has registered for this frame */ |
1365 | brcmf_dbg(INFO, "ifp->vif->mgmt_rx_reg %04x\n", ifp->vif->mgmt_rx_reg); | |
1366 | mgmt_type = (IEEE80211_STYPE_ACTION & IEEE80211_FCTL_STYPE) >> 4; | |
1367 | if ((ifp->vif->mgmt_rx_reg & BIT(mgmt_type)) == 0) | |
1368 | return 0; | |
1369 | ||
6eda4e2c HM |
1370 | brcmf_p2p_print_actframe(false, frame, mgmt_frame_len); |
1371 | ||
1372 | action = P2P_PAF_SUBTYPE_INVALID; | |
1373 | if (brcmf_p2p_is_pub_action(frame, mgmt_frame_len)) { | |
1374 | act_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
1375 | action = act_frm->subtype; | |
1376 | if ((action == P2P_PAF_GON_REQ) && | |
1377 | (brcmf_p2p_gon_req_collision(p2p, (u8 *)e->addr))) { | |
1378 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1379 | &p2p->status) && | |
692e5167 | 1380 | (ether_addr_equal(afx_hdl->tx_dst_addr, e->addr))) { |
4712d88a | 1381 | afx_hdl->peer_chan = ch.control_ch_num; |
6eda4e2c HM |
1382 | brcmf_dbg(INFO, "GON request: Peer found, channel=%d\n", |
1383 | afx_hdl->peer_chan); | |
1384 | complete(&afx_hdl->act_frm_scan); | |
1385 | } | |
1386 | return 0; | |
1387 | } | |
1388 | /* After complete GO Negotiation, roll back to mpc mode */ | |
1389 | if ((action == P2P_PAF_GON_CONF) || | |
1390 | (action == P2P_PAF_PROVDIS_RSP)) | |
f96aa07e | 1391 | brcmf_set_mpc(ifp, 1); |
6eda4e2c HM |
1392 | if (action == P2P_PAF_GON_CONF) { |
1393 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1394 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1395 | } | |
1396 | } else if (brcmf_p2p_is_gas_action(frame, mgmt_frame_len)) { | |
1397 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
1398 | action = sd_act_frm->action; | |
1399 | } | |
1400 | ||
1401 | if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) && | |
1402 | (p2p->next_af_subtype == action)) { | |
1403 | brcmf_dbg(TRACE, "We got a right next frame! (%d)\n", action); | |
1404 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1405 | &p2p->status); | |
1406 | /* Stop waiting for next AF. */ | |
1407 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1408 | } | |
e6da3400 HM |
1409 | |
1410 | mgmt_frame = kzalloc(offsetof(struct ieee80211_mgmt, u) + | |
1411 | mgmt_frame_len, GFP_KERNEL); | |
1412 | if (!mgmt_frame) { | |
1413 | brcmf_err("No memory available for action frame\n"); | |
1414 | return -ENOMEM; | |
1415 | } | |
1416 | memcpy(mgmt_frame->da, ifp->mac_addr, ETH_ALEN); | |
6eda4e2c HM |
1417 | brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mgmt_frame->bssid, |
1418 | ETH_ALEN); | |
e6da3400 HM |
1419 | memcpy(mgmt_frame->sa, e->addr, ETH_ALEN); |
1420 | mgmt_frame->frame_control = cpu_to_le16(IEEE80211_STYPE_ACTION); | |
6eda4e2c | 1421 | memcpy(&mgmt_frame->u, frame, mgmt_frame_len); |
e6da3400 HM |
1422 | mgmt_frame_len += offsetof(struct ieee80211_mgmt, u); |
1423 | ||
4712d88a | 1424 | freq = ieee80211_channel_to_frequency(ch.control_ch_num, |
83cf17aa | 1425 | ch.band == BRCMU_CHAN_BAND_2G ? |
57fbcce3 JB |
1426 | NL80211_BAND_2GHZ : |
1427 | NL80211_BAND_5GHZ); | |
5b57af6e AS |
1428 | |
1429 | wdev = &ifp->vif->wdev; | |
970fdfa8 | 1430 | cfg80211_rx_mgmt(wdev, freq, 0, (u8 *)mgmt_frame, mgmt_frame_len, 0); |
e6da3400 HM |
1431 | |
1432 | kfree(mgmt_frame); | |
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | ||
18e2f61d HM |
1437 | /** |
1438 | * brcmf_p2p_notify_action_tx_complete() - transmit action frame complete | |
1439 | * | |
1440 | * @ifp: interfac control. | |
1441 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1442 | * @data: not used. | |
1443 | * | |
1444 | */ | |
1445 | int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp, | |
1446 | const struct brcmf_event_msg *e, | |
1447 | void *data) | |
1448 | { | |
1449 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1450 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1451 | ||
6eda4e2c HM |
1452 | brcmf_dbg(INFO, "Enter: event %s, status=%d\n", |
1453 | e->event_code == BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE ? | |
1454 | "ACTION_FRAME_OFF_CHAN_COMPLETE" : "ACTION_FRAME_COMPLETE", | |
1455 | e->status); | |
18e2f61d | 1456 | |
6eda4e2c HM |
1457 | if (!test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status)) |
1458 | return 0; | |
1459 | ||
1460 | if (e->event_code == BRCMF_E_ACTION_FRAME_COMPLETE) { | |
1461 | if (e->status == BRCMF_E_STATUS_SUCCESS) | |
1462 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, | |
1463 | &p2p->status); | |
1464 | else { | |
1465 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1466 | /* If there is no ack, we don't need to wait for | |
1467 | * WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE event | |
1468 | */ | |
1469 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1470 | } | |
18e2f61d | 1471 | |
6eda4e2c HM |
1472 | } else { |
1473 | complete(&p2p->send_af_done); | |
1474 | } | |
18e2f61d HM |
1475 | return 0; |
1476 | } | |
1477 | ||
1478 | ||
1479 | /** | |
1480 | * brcmf_p2p_tx_action_frame() - send action frame over fil. | |
1481 | * | |
1482 | * @p2p: p2p info struct for vif. | |
1483 | * @af_params: action frame data/info. | |
1484 | * | |
1485 | * Send an action frame immediately without doing channel synchronization. | |
1486 | * | |
1487 | * This function waits for a completion event before returning. | |
1488 | * The WLC_E_ACTION_FRAME_COMPLETE event will be received when the action | |
1489 | * frame is transmitted. | |
1490 | */ | |
1491 | static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p, | |
1492 | struct brcmf_fil_af_params_le *af_params) | |
1493 | { | |
1494 | struct brcmf_cfg80211_vif *vif; | |
1495 | s32 err = 0; | |
1496 | s32 timeout = 0; | |
1497 | ||
1498 | brcmf_dbg(TRACE, "Enter\n"); | |
1499 | ||
16735d02 | 1500 | reinit_completion(&p2p->send_af_done); |
18e2f61d HM |
1501 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); |
1502 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1503 | ||
1504 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1505 | err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe", af_params, | |
1506 | sizeof(*af_params)); | |
1507 | if (err) { | |
1508 | brcmf_err(" sending action frame has failed\n"); | |
1509 | goto exit; | |
1510 | } | |
1511 | ||
6eda4e2c HM |
1512 | p2p->af_sent_channel = le32_to_cpu(af_params->channel); |
1513 | p2p->af_tx_sent_jiffies = jiffies; | |
1514 | ||
18e2f61d | 1515 | timeout = wait_for_completion_timeout(&p2p->send_af_done, |
63ce3d5d | 1516 | P2P_AF_MAX_WAIT_TIME); |
18e2f61d HM |
1517 | |
1518 | if (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status)) { | |
1519 | brcmf_dbg(TRACE, "TX action frame operation is success\n"); | |
1520 | } else { | |
1521 | err = -EIO; | |
1522 | brcmf_dbg(TRACE, "TX action frame operation has failed\n"); | |
1523 | } | |
1524 | /* clear status bit for action tx */ | |
1525 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); | |
1526 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1527 | ||
1528 | exit: | |
1529 | return err; | |
1530 | } | |
1531 | ||
1532 | ||
1533 | /** | |
1534 | * brcmf_p2p_pub_af_tx() - public action frame tx routine. | |
1535 | * | |
1536 | * @cfg: driver private data for cfg80211 interface. | |
1537 | * @af_params: action frame data/info. | |
1538 | * @config_af_params: configuration data for action frame. | |
1539 | * | |
1540 | * routine which transmits ation frame public type. | |
1541 | */ | |
1542 | static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg, | |
1543 | struct brcmf_fil_af_params_le *af_params, | |
1544 | struct brcmf_config_af_params *config_af_params) | |
1545 | { | |
1546 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1547 | struct brcmf_fil_action_frame_le *action_frame; | |
1548 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1549 | s32 err = 0; | |
6eda4e2c | 1550 | u16 ie_len; |
18e2f61d HM |
1551 | |
1552 | action_frame = &af_params->action_frame; | |
1553 | act_frm = (struct brcmf_p2p_pub_act_frame *)(action_frame->data); | |
1554 | ||
6eda4e2c HM |
1555 | config_af_params->extra_listen = true; |
1556 | ||
18e2f61d HM |
1557 | switch (act_frm->subtype) { |
1558 | case P2P_PAF_GON_REQ: | |
1559 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status set\n"); | |
1560 | set_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1561 | config_af_params->mpc_onoff = 0; | |
6eda4e2c | 1562 | config_af_params->search_channel = true; |
18e2f61d | 1563 | p2p->next_af_subtype = act_frm->subtype + 1; |
6eda4e2c | 1564 | p2p->gon_req_action = true; |
18e2f61d HM |
1565 | /* increase dwell time to wait for RESP frame */ |
1566 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1567 | break; | |
1568 | case P2P_PAF_GON_RSP: | |
1569 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1570 | /* increase dwell time to wait for CONF frame */ | |
1571 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1572 | break; | |
1573 | case P2P_PAF_GON_CONF: | |
1574 | /* If we reached till GO Neg confirmation reset the filter */ | |
1575 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1576 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1577 | /* turn on mpc again if go nego is done */ | |
1578 | config_af_params->mpc_onoff = 1; | |
1579 | /* minimize dwell time */ | |
1580 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1581 | config_af_params->extra_listen = false; |
18e2f61d HM |
1582 | break; |
1583 | case P2P_PAF_INVITE_REQ: | |
6eda4e2c | 1584 | config_af_params->search_channel = true; |
18e2f61d HM |
1585 | p2p->next_af_subtype = act_frm->subtype + 1; |
1586 | /* increase dwell time */ | |
1587 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1588 | break; | |
1589 | case P2P_PAF_INVITE_RSP: | |
1590 | /* minimize dwell time */ | |
1591 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1592 | config_af_params->extra_listen = false; |
18e2f61d HM |
1593 | break; |
1594 | case P2P_PAF_DEVDIS_REQ: | |
6eda4e2c | 1595 | config_af_params->search_channel = true; |
18e2f61d HM |
1596 | p2p->next_af_subtype = act_frm->subtype + 1; |
1597 | /* maximize dwell time to wait for RESP frame */ | |
1598 | af_params->dwell_time = cpu_to_le32(P2P_AF_LONG_DWELL_TIME); | |
1599 | break; | |
1600 | case P2P_PAF_DEVDIS_RSP: | |
1601 | /* minimize dwell time */ | |
1602 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1603 | config_af_params->extra_listen = false; |
18e2f61d HM |
1604 | break; |
1605 | case P2P_PAF_PROVDIS_REQ: | |
6eda4e2c HM |
1606 | ie_len = le16_to_cpu(action_frame->len) - |
1607 | offsetof(struct brcmf_p2p_pub_act_frame, elts); | |
1608 | if (cfg80211_get_p2p_attr(&act_frm->elts[0], ie_len, | |
1609 | IEEE80211_P2P_ATTR_GROUP_ID, | |
1610 | NULL, 0) < 0) | |
1611 | config_af_params->search_channel = true; | |
18e2f61d HM |
1612 | config_af_params->mpc_onoff = 0; |
1613 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1614 | /* increase dwell time to wait for RESP frame */ | |
1615 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1616 | break; | |
1617 | case P2P_PAF_PROVDIS_RSP: | |
1618 | /* wpa_supplicant send go nego req right after prov disc */ | |
1619 | p2p->next_af_subtype = P2P_PAF_GON_REQ; | |
1620 | /* increase dwell time to MED level */ | |
1621 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
6eda4e2c | 1622 | config_af_params->extra_listen = false; |
18e2f61d HM |
1623 | break; |
1624 | default: | |
1625 | brcmf_err("Unknown p2p pub act frame subtype: %d\n", | |
1626 | act_frm->subtype); | |
1627 | err = -EINVAL; | |
1628 | } | |
1629 | return err; | |
1630 | } | |
1631 | ||
1632 | /** | |
1633 | * brcmf_p2p_send_action_frame() - send action frame . | |
1634 | * | |
1635 | * @cfg: driver private data for cfg80211 interface. | |
1636 | * @ndev: net device to transmit on. | |
1637 | * @af_params: configuration data for action frame. | |
1638 | */ | |
1639 | bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg, | |
1640 | struct net_device *ndev, | |
1641 | struct brcmf_fil_af_params_le *af_params) | |
1642 | { | |
1643 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
a0f472ac | 1644 | struct brcmf_if *ifp = netdev_priv(ndev); |
18e2f61d HM |
1645 | struct brcmf_fil_action_frame_le *action_frame; |
1646 | struct brcmf_config_af_params config_af_params; | |
6eda4e2c | 1647 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; |
18e2f61d HM |
1648 | u16 action_frame_len; |
1649 | bool ack = false; | |
1650 | u8 category; | |
1651 | u8 action; | |
1652 | s32 tx_retry; | |
6eda4e2c HM |
1653 | s32 extra_listen_time; |
1654 | uint delta_ms; | |
18e2f61d HM |
1655 | |
1656 | action_frame = &af_params->action_frame; | |
1657 | action_frame_len = le16_to_cpu(action_frame->len); | |
1658 | ||
1659 | brcmf_p2p_print_actframe(true, action_frame->data, action_frame_len); | |
1660 | ||
1661 | /* Add the default dwell time. Dwell time to stay off-channel */ | |
1662 | /* to wait for a response action frame after transmitting an */ | |
1663 | /* GO Negotiation action frame */ | |
1664 | af_params->dwell_time = cpu_to_le32(P2P_AF_DWELL_TIME); | |
1665 | ||
1666 | category = action_frame->data[DOT11_ACTION_CAT_OFF]; | |
1667 | action = action_frame->data[DOT11_ACTION_ACT_OFF]; | |
1668 | ||
1669 | /* initialize variables */ | |
1670 | p2p->next_af_subtype = P2P_PAF_SUBTYPE_INVALID; | |
6eda4e2c | 1671 | p2p->gon_req_action = false; |
18e2f61d HM |
1672 | |
1673 | /* config parameters */ | |
18e2f61d | 1674 | config_af_params.mpc_onoff = -1; |
6eda4e2c HM |
1675 | config_af_params.search_channel = false; |
1676 | config_af_params.extra_listen = false; | |
18e2f61d HM |
1677 | |
1678 | if (brcmf_p2p_is_pub_action(action_frame->data, action_frame_len)) { | |
1679 | /* p2p public action frame process */ | |
1680 | if (brcmf_p2p_pub_af_tx(cfg, af_params, &config_af_params)) { | |
1681 | /* Just send unknown subtype frame with */ | |
1682 | /* default parameters. */ | |
1683 | brcmf_err("P2P Public action frame, unknown subtype.\n"); | |
1684 | } | |
1685 | } else if (brcmf_p2p_is_gas_action(action_frame->data, | |
1686 | action_frame_len)) { | |
1687 | /* service discovery process */ | |
1688 | if (action == P2PSD_ACTION_ID_GAS_IREQ || | |
1689 | action == P2PSD_ACTION_ID_GAS_CREQ) { | |
6eda4e2c HM |
1690 | /* configure service discovery query frame */ |
1691 | config_af_params.search_channel = true; | |
1692 | ||
18e2f61d HM |
1693 | /* save next af suptype to cancel */ |
1694 | /* remaining dwell time */ | |
1695 | p2p->next_af_subtype = action + 1; | |
1696 | ||
1697 | af_params->dwell_time = | |
1698 | cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1699 | } else if (action == P2PSD_ACTION_ID_GAS_IRESP || | |
1700 | action == P2PSD_ACTION_ID_GAS_CRESP) { | |
1701 | /* configure service discovery response frame */ | |
1702 | af_params->dwell_time = | |
1703 | cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
1704 | } else { | |
1705 | brcmf_err("Unknown action type: %d\n", action); | |
1706 | goto exit; | |
1707 | } | |
1708 | } else if (brcmf_p2p_is_p2p_action(action_frame->data, | |
1709 | action_frame_len)) { | |
1710 | /* do not configure anything. it will be */ | |
1711 | /* sent with a default configuration */ | |
1712 | } else { | |
1713 | brcmf_err("Unknown Frame: category 0x%x, action 0x%x\n", | |
1714 | category, action); | |
1715 | return false; | |
1716 | } | |
1717 | ||
6eda4e2c HM |
1718 | /* if connecting on primary iface, sleep for a while before sending |
1719 | * af tx for VSDB | |
1720 | */ | |
1721 | if (test_bit(BRCMF_VIF_STATUS_CONNECTING, | |
1722 | &p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->sme_state)) | |
1723 | msleep(50); | |
1724 | ||
18e2f61d HM |
1725 | /* if scan is ongoing, abort current scan. */ |
1726 | if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) | |
1727 | brcmf_abort_scanning(cfg); | |
1728 | ||
6eda4e2c HM |
1729 | memcpy(afx_hdl->tx_dst_addr, action_frame->da, ETH_ALEN); |
1730 | ||
18e2f61d HM |
1731 | /* To make sure to send successfully action frame, turn off mpc */ |
1732 | if (config_af_params.mpc_onoff == 0) | |
a0f472ac | 1733 | brcmf_set_mpc(ifp, 0); |
18e2f61d | 1734 | |
6eda4e2c HM |
1735 | /* set status and destination address before sending af */ |
1736 | if (p2p->next_af_subtype != P2P_PAF_SUBTYPE_INVALID) { | |
1737 | /* set status to cancel the remained dwell time in rx process */ | |
1738 | set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status); | |
1739 | } | |
1740 | ||
1741 | p2p->af_sent_channel = 0; | |
1742 | set_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status); | |
1743 | /* validate channel and p2p ies */ | |
1744 | if (config_af_params.search_channel && | |
1745 | IS_P2P_SOCIAL_CHANNEL(le32_to_cpu(af_params->channel)) && | |
1746 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->saved_ie.probe_req_ie_len) { | |
1747 | afx_hdl = &p2p->afx_hdl; | |
1748 | afx_hdl->peer_listen_chan = le32_to_cpu(af_params->channel); | |
1749 | ||
1750 | if (brcmf_p2p_af_searching_channel(p2p) == | |
1751 | P2P_INVALID_CHANNEL) { | |
1752 | brcmf_err("Couldn't find peer's channel.\n"); | |
1753 | goto exit; | |
1754 | } | |
1755 | ||
1756 | /* Abort scan even for VSDB scenarios. Scan gets aborted in | |
1757 | * firmware but after the check of piggyback algorithm. To take | |
1758 | * care of current piggback algo, lets abort the scan here | |
1759 | * itself. | |
1760 | */ | |
a0f472ac | 1761 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1762 | |
1763 | /* update channel */ | |
1764 | af_params->channel = cpu_to_le32(afx_hdl->peer_chan); | |
1765 | } | |
1766 | ||
18e2f61d | 1767 | tx_retry = 0; |
6eda4e2c HM |
1768 | while (!p2p->block_gon_req_tx && |
1769 | (ack == false) && (tx_retry < P2P_AF_TX_MAX_RETRY)) { | |
18e2f61d HM |
1770 | ack = !brcmf_p2p_tx_action_frame(p2p, af_params); |
1771 | tx_retry++; | |
1772 | } | |
6eda4e2c | 1773 | if (ack == false) { |
18e2f61d | 1774 | brcmf_err("Failed to send Action Frame(retry %d)\n", tx_retry); |
6eda4e2c HM |
1775 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
1776 | } | |
18e2f61d HM |
1777 | |
1778 | exit: | |
6eda4e2c HM |
1779 | clear_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status); |
1780 | ||
1781 | /* WAR: sometimes dongle does not keep the dwell time of 'actframe'. | |
1782 | * if we coundn't get the next action response frame and dongle does | |
1783 | * not keep the dwell time, go to listen state again to get next action | |
1784 | * response frame. | |
1785 | */ | |
1786 | if (ack && config_af_params.extra_listen && !p2p->block_gon_req_tx && | |
1787 | test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) && | |
1788 | p2p->af_sent_channel == afx_hdl->my_listen_chan) { | |
1789 | delta_ms = jiffies_to_msecs(jiffies - p2p->af_tx_sent_jiffies); | |
1790 | if (le32_to_cpu(af_params->dwell_time) > delta_ms) | |
1791 | extra_listen_time = le32_to_cpu(af_params->dwell_time) - | |
1792 | delta_ms; | |
1793 | else | |
1794 | extra_listen_time = 0; | |
1795 | if (extra_listen_time > 50) { | |
1796 | set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1797 | &p2p->status); | |
1798 | brcmf_dbg(INFO, "Wait more time! actual af time:%d, calculated extra listen:%d\n", | |
1799 | le32_to_cpu(af_params->dwell_time), | |
1800 | extra_listen_time); | |
1801 | extra_listen_time += 100; | |
1802 | if (!brcmf_p2p_discover_listen(p2p, | |
1803 | p2p->af_sent_channel, | |
1804 | extra_listen_time)) { | |
1805 | unsigned long duration; | |
1806 | ||
1807 | extra_listen_time += 100; | |
1808 | duration = msecs_to_jiffies(extra_listen_time); | |
1809 | wait_for_completion_timeout(&p2p->wait_next_af, | |
1810 | duration); | |
1811 | } | |
1812 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1813 | &p2p->status); | |
1814 | } | |
1815 | } | |
1816 | ||
1817 | if (p2p->block_gon_req_tx) { | |
1818 | /* if ack is true, supplicant will wait more time(100ms). | |
1819 | * so we will return it as a success to get more time . | |
1820 | */ | |
1821 | p2p->block_gon_req_tx = false; | |
1822 | ack = true; | |
1823 | } | |
1824 | ||
1825 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status); | |
18e2f61d HM |
1826 | /* if all done, turn mpc on again */ |
1827 | if (config_af_params.mpc_onoff == 1) | |
a0f472ac | 1828 | brcmf_set_mpc(ifp, 1); |
18e2f61d HM |
1829 | |
1830 | return ack; | |
1831 | } | |
1832 | ||
6eda4e2c HM |
1833 | /** |
1834 | * brcmf_p2p_notify_rx_mgmt_p2p_probereq() - Event handler for p2p probe req. | |
1835 | * | |
1836 | * @ifp: interface pointer for which event was received. | |
1837 | * @e: even message. | |
1838 | * @data: payload of event message (probe request). | |
1839 | */ | |
1840 | s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp, | |
1841 | const struct brcmf_event_msg *e, | |
1842 | void *data) | |
1843 | { | |
1844 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1845 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1846 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
6eda4e2c HM |
1847 | struct brcmf_cfg80211_vif *vif = ifp->vif; |
1848 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
83cf17aa | 1849 | struct brcmu_chan ch; |
6eda4e2c HM |
1850 | u8 *mgmt_frame; |
1851 | u32 mgmt_frame_len; | |
1852 | s32 freq; | |
1853 | u16 mgmt_type; | |
1854 | ||
1855 | brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code, | |
1856 | e->reason); | |
1857 | ||
0aedbcaf HM |
1858 | if (e->datalen < sizeof(*rxframe)) { |
1859 | brcmf_dbg(SCAN, "Event data to small. Ignore\n"); | |
1860 | return 0; | |
1861 | } | |
1862 | ||
83cf17aa FL |
1863 | ch.chspec = be16_to_cpu(rxframe->chanspec); |
1864 | cfg->d11inf.decchspec(&ch); | |
1865 | ||
6eda4e2c | 1866 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status) && |
692e5167 | 1867 | (ether_addr_equal(afx_hdl->tx_dst_addr, e->addr))) { |
4712d88a | 1868 | afx_hdl->peer_chan = ch.control_ch_num; |
6eda4e2c HM |
1869 | brcmf_dbg(INFO, "PROBE REQUEST: Peer found, channel=%d\n", |
1870 | afx_hdl->peer_chan); | |
1871 | complete(&afx_hdl->act_frm_scan); | |
1872 | } | |
1873 | ||
1874 | /* Firmware sends us two proberesponses for each idx one. At the */ | |
1875 | /* moment anything but bsscfgidx 0 is passed up to supplicant */ | |
1876 | if (e->bsscfgidx == 0) | |
1877 | return 0; | |
1878 | ||
1879 | /* Filter any P2P probe reqs arriving during the GO-NEG Phase */ | |
1880 | if (test_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status)) { | |
1881 | brcmf_dbg(INFO, "Filtering P2P probe_req in GO-NEG phase\n"); | |
1882 | return 0; | |
1883 | } | |
1884 | ||
1885 | /* Check if wpa_supplicant has registered for this frame */ | |
1886 | brcmf_dbg(INFO, "vif->mgmt_rx_reg %04x\n", vif->mgmt_rx_reg); | |
1887 | mgmt_type = (IEEE80211_STYPE_PROBE_REQ & IEEE80211_FCTL_STYPE) >> 4; | |
1888 | if ((vif->mgmt_rx_reg & BIT(mgmt_type)) == 0) | |
1889 | return 0; | |
1890 | ||
1891 | mgmt_frame = (u8 *)(rxframe + 1); | |
1892 | mgmt_frame_len = e->datalen - sizeof(*rxframe); | |
4712d88a | 1893 | freq = ieee80211_channel_to_frequency(ch.control_ch_num, |
83cf17aa | 1894 | ch.band == BRCMU_CHAN_BAND_2G ? |
57fbcce3 JB |
1895 | NL80211_BAND_2GHZ : |
1896 | NL80211_BAND_5GHZ); | |
bffc61c9 | 1897 | |
970fdfa8 | 1898 | cfg80211_rx_mgmt(&vif->wdev, freq, 0, mgmt_frame, mgmt_frame_len, 0); |
6eda4e2c HM |
1899 | |
1900 | brcmf_dbg(INFO, "mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n", | |
73f2c8e9 | 1901 | mgmt_frame_len, e->datalen, ch.chspec, freq); |
6eda4e2c HM |
1902 | |
1903 | return 0; | |
1904 | } | |
1905 | ||
18e2f61d | 1906 | |
7a5c1f64 HM |
1907 | /** |
1908 | * brcmf_p2p_get_current_chanspec() - Get current operation channel. | |
1909 | * | |
1910 | * @p2p: P2P specific data. | |
1911 | * @chanspec: chanspec to be returned. | |
1912 | */ | |
1913 | static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p, | |
1914 | u16 *chanspec) | |
d3c0b633 | 1915 | { |
7a5c1f64 | 1916 | struct brcmf_if *ifp; |
15a953d0 | 1917 | u8 mac_addr[ETH_ALEN]; |
83cf17aa | 1918 | struct brcmu_chan ch; |
15a953d0 HM |
1919 | struct brcmf_bss_info_le *bi; |
1920 | u8 *buf; | |
7a5c1f64 HM |
1921 | |
1922 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; | |
1923 | ||
15a953d0 HM |
1924 | if (brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mac_addr, |
1925 | ETH_ALEN) == 0) { | |
1926 | buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); | |
1927 | if (buf != NULL) { | |
1928 | *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); | |
1929 | if (brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, | |
1930 | buf, WL_BSS_INFO_MAX) == 0) { | |
1931 | bi = (struct brcmf_bss_info_le *)(buf + 4); | |
1932 | *chanspec = le16_to_cpu(bi->chanspec); | |
1933 | kfree(buf); | |
1934 | return; | |
1935 | } | |
1936 | kfree(buf); | |
1937 | } | |
1938 | } | |
1939 | /* Use default channel for P2P */ | |
1940 | ch.chnum = BRCMF_P2P_TEMP_CHAN; | |
83cf17aa FL |
1941 | ch.bw = BRCMU_CHAN_BW_20; |
1942 | p2p->cfg->d11inf.encchspec(&ch); | |
1943 | *chanspec = ch.chspec; | |
7a5c1f64 HM |
1944 | } |
1945 | ||
1946 | /** | |
1947 | * Change a P2P Role. | |
1948 | * Parameters: | |
1949 | * @mac: MAC address of the BSS to change a role | |
1950 | * Returns 0 if success. | |
1951 | */ | |
1952 | int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg, | |
1953 | enum brcmf_fil_p2p_if_types if_type) | |
1954 | { | |
1955 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1956 | struct brcmf_cfg80211_vif *vif; | |
1957 | struct brcmf_fil_p2p_if_le if_request; | |
1958 | s32 err; | |
1959 | u16 chanspec; | |
1960 | ||
1961 | brcmf_dbg(TRACE, "Enter\n"); | |
1962 | ||
1963 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
1964 | if (!vif) { | |
1965 | brcmf_err("vif for P2PAPI_BSSCFG_PRIMARY does not exist\n"); | |
1966 | return -EPERM; | |
d3c0b633 | 1967 | } |
a0f472ac | 1968 | brcmf_notify_escan_complete(cfg, vif->ifp, true, true); |
7a5c1f64 HM |
1969 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; |
1970 | if (!vif) { | |
1971 | brcmf_err("vif for P2PAPI_BSSCFG_CONNECTION does not exist\n"); | |
1972 | return -EPERM; | |
1973 | } | |
f96aa07e | 1974 | brcmf_set_mpc(vif->ifp, 0); |
7a5c1f64 HM |
1975 | |
1976 | /* In concurrency case, STA may be already associated in a particular */ | |
1977 | /* channel. so retrieve the current channel of primary interface and */ | |
1978 | /* then start the virtual interface on that. */ | |
1979 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
1980 | ||
1981 | if_request.type = cpu_to_le16((u16)if_type); | |
1982 | if_request.chspec = cpu_to_le16(chanspec); | |
1983 | memcpy(if_request.addr, p2p->int_addr, sizeof(if_request.addr)); | |
1984 | ||
1985 | brcmf_cfg80211_arm_vif_event(cfg, vif); | |
1986 | err = brcmf_fil_iovar_data_set(vif->ifp, "p2p_ifupd", &if_request, | |
1987 | sizeof(if_request)); | |
1988 | if (err) { | |
1989 | brcmf_err("p2p_ifupd FAILED, err=%d\n", err); | |
1990 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
1991 | return err; | |
1992 | } | |
a9eb0c4b AS |
1993 | err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_CHANGE, |
1994 | BRCMF_VIF_EVENT_TIMEOUT); | |
7a5c1f64 HM |
1995 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
1996 | if (!err) { | |
1997 | brcmf_err("No BRCMF_E_IF_CHANGE event received\n"); | |
1998 | return -EIO; | |
1999 | } | |
2000 | ||
2001 | err = brcmf_fil_cmd_int_set(vif->ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
2002 | BRCMF_SCB_TIMEOUT_VALUE); | |
2003 | ||
2004 | return err; | |
2005 | } | |
2006 | ||
2007 | static int brcmf_p2p_request_p2p_if(struct brcmf_p2p_info *p2p, | |
2008 | struct brcmf_if *ifp, u8 ea[ETH_ALEN], | |
2009 | enum brcmf_fil_p2p_if_types iftype) | |
2010 | { | |
2011 | struct brcmf_fil_p2p_if_le if_request; | |
2012 | int err; | |
2013 | u16 chanspec; | |
2014 | ||
2015 | /* we need a default channel */ | |
2016 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
d3c0b633 AS |
2017 | |
2018 | /* fill the firmware request */ | |
2019 | memcpy(if_request.addr, ea, ETH_ALEN); | |
7ee2d926 | 2020 | if_request.type = cpu_to_le16((u16)iftype); |
d3c0b633 AS |
2021 | if_request.chspec = cpu_to_le16(chanspec); |
2022 | ||
2023 | err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request, | |
2024 | sizeof(if_request)); | |
d3c0b633 | 2025 | |
d3c0b633 AS |
2026 | return err; |
2027 | } | |
2028 | ||
5f4f9f11 AS |
2029 | static int brcmf_p2p_disable_p2p_if(struct brcmf_cfg80211_vif *vif) |
2030 | { | |
2031 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
2032 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
2033 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
2034 | u8 *addr = vif->wdev.netdev->dev_addr; | |
2035 | ||
2036 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdis", addr, ETH_ALEN); | |
2037 | } | |
2038 | ||
2039 | static int brcmf_p2p_release_p2p_if(struct brcmf_cfg80211_vif *vif) | |
2040 | { | |
2041 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
2042 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
2043 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
2044 | u8 *addr = vif->wdev.netdev->dev_addr; | |
2045 | ||
2046 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdel", addr, ETH_ALEN); | |
2047 | } | |
2048 | ||
27f10e38 AS |
2049 | /** |
2050 | * brcmf_p2p_create_p2pdev() - create a P2P_DEVICE virtual interface. | |
2051 | * | |
2052 | * @p2p: P2P specific data. | |
2053 | * @wiphy: wiphy device of new interface. | |
2054 | * @addr: mac address for this new interface. | |
2055 | */ | |
2056 | static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p, | |
2057 | struct wiphy *wiphy, | |
2058 | u8 *addr) | |
2059 | { | |
2060 | struct brcmf_cfg80211_vif *p2p_vif; | |
2061 | struct brcmf_if *p2p_ifp; | |
2062 | struct brcmf_if *pri_ifp; | |
2063 | int err; | |
37a869ec | 2064 | u32 bsscfgidx; |
27f10e38 AS |
2065 | |
2066 | if (p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif) | |
2067 | return ERR_PTR(-ENOSPC); | |
2068 | ||
26072330 | 2069 | p2p_vif = brcmf_alloc_vif(p2p->cfg, NL80211_IFTYPE_P2P_DEVICE); |
27f10e38 AS |
2070 | if (IS_ERR(p2p_vif)) { |
2071 | brcmf_err("could not create discovery vif\n"); | |
2072 | return (struct wireless_dev *)p2p_vif; | |
2073 | } | |
2074 | ||
27f10e38 | 2075 | pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
cb746e47 AVS |
2076 | |
2077 | /* firmware requires unique mac address for p2pdev interface */ | |
2078 | if (addr && ether_addr_equal(addr, pri_ifp->mac_addr)) { | |
2079 | brcmf_err("discovery vif must be different from primary interface\n"); | |
2080 | return ERR_PTR(-EINVAL); | |
2081 | } | |
2082 | ||
01b8e7db | 2083 | brcmf_p2p_generate_bss_mac(p2p, addr); |
27f10e38 AS |
2084 | brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr); |
2085 | ||
01b8e7db | 2086 | brcmf_cfg80211_arm_vif_event(p2p->cfg, p2p_vif); |
cb8dc71f | 2087 | brcmf_fweh_p2pdev_setup(pri_ifp, true); |
01b8e7db | 2088 | |
27f10e38 AS |
2089 | /* Initialize P2P Discovery in the firmware */ |
2090 | err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); | |
2091 | if (err < 0) { | |
2092 | brcmf_err("set p2p_disc error\n"); | |
cb8dc71f | 2093 | brcmf_fweh_p2pdev_setup(pri_ifp, false); |
01b8e7db AS |
2094 | brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL); |
2095 | goto fail; | |
2096 | } | |
2097 | ||
2098 | /* wait for firmware event */ | |
a9eb0c4b AS |
2099 | err = brcmf_cfg80211_wait_vif_event(p2p->cfg, BRCMF_E_IF_ADD, |
2100 | BRCMF_VIF_EVENT_TIMEOUT); | |
01b8e7db | 2101 | brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL); |
cb8dc71f | 2102 | brcmf_fweh_p2pdev_setup(pri_ifp, false); |
01b8e7db AS |
2103 | if (!err) { |
2104 | brcmf_err("timeout occurred\n"); | |
2105 | err = -EIO; | |
2106 | goto fail; | |
27f10e38 | 2107 | } |
01b8e7db AS |
2108 | |
2109 | /* discovery interface created */ | |
2110 | p2p_ifp = p2p_vif->ifp; | |
2111 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif; | |
2112 | memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN); | |
2113 | memcpy(&p2p_vif->wdev.address, p2p->dev_addr, sizeof(p2p->dev_addr)); | |
2114 | ||
2115 | /* verify bsscfg index for P2P discovery */ | |
37a869ec | 2116 | err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bsscfgidx); |
27f10e38 AS |
2117 | if (err < 0) { |
2118 | brcmf_err("retrieving discover bsscfg index failed\n"); | |
01b8e7db | 2119 | goto fail; |
27f10e38 AS |
2120 | } |
2121 | ||
37a869ec | 2122 | WARN_ON(p2p_ifp->bsscfgidx != bsscfgidx); |
27f10e38 AS |
2123 | |
2124 | init_completion(&p2p->send_af_done); | |
2125 | INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler); | |
2126 | init_completion(&p2p->afx_hdl.act_frm_scan); | |
2127 | init_completion(&p2p->wait_next_af); | |
2128 | ||
2129 | return &p2p_vif->wdev; | |
01b8e7db AS |
2130 | |
2131 | fail: | |
427dec5f | 2132 | brcmf_free_vif(p2p_vif); |
01b8e7db | 2133 | return ERR_PTR(err); |
27f10e38 AS |
2134 | } |
2135 | ||
9f440b7b AS |
2136 | /** |
2137 | * brcmf_p2p_add_vif() - create a new P2P virtual interface. | |
2138 | * | |
2139 | * @wiphy: wiphy device of new interface. | |
2140 | * @name: name of the new interface. | |
6bab2e19 | 2141 | * @name_assign_type: origin of the interface name |
9f440b7b | 2142 | * @type: nl80211 interface type. |
27f10e38 | 2143 | * @params: contains mac address for P2P device. |
9f440b7b AS |
2144 | */ |
2145 | struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, | |
6bab2e19 | 2146 | unsigned char name_assign_type, |
818a986e | 2147 | enum nl80211_iftype type, |
9f440b7b AS |
2148 | struct vif_params *params) |
2149 | { | |
d3c0b633 AS |
2150 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); |
2151 | struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); | |
2152 | struct brcmf_cfg80211_vif *vif; | |
2153 | enum brcmf_fil_p2p_if_types iftype; | |
d3c0b633 AS |
2154 | int err; |
2155 | ||
2156 | if (brcmf_cfg80211_vif_event_armed(cfg)) | |
2157 | return ERR_PTR(-EBUSY); | |
2158 | ||
9f440b7b | 2159 | brcmf_dbg(INFO, "adding vif \"%s\" (type=%d)\n", name, type); |
d3c0b633 AS |
2160 | |
2161 | switch (type) { | |
2162 | case NL80211_IFTYPE_P2P_CLIENT: | |
2163 | iftype = BRCMF_FIL_P2P_IF_CLIENT; | |
d3c0b633 AS |
2164 | break; |
2165 | case NL80211_IFTYPE_P2P_GO: | |
2166 | iftype = BRCMF_FIL_P2P_IF_GO; | |
d3c0b633 | 2167 | break; |
27f10e38 AS |
2168 | case NL80211_IFTYPE_P2P_DEVICE: |
2169 | return brcmf_p2p_create_p2pdev(&cfg->p2p, wiphy, | |
2170 | params->macaddr); | |
d3c0b633 AS |
2171 | default: |
2172 | return ERR_PTR(-EOPNOTSUPP); | |
2173 | } | |
2174 | ||
26072330 | 2175 | vif = brcmf_alloc_vif(cfg, type); |
7ee2d926 HM |
2176 | if (IS_ERR(vif)) |
2177 | return (struct wireless_dev *)vif; | |
d3c0b633 AS |
2178 | brcmf_cfg80211_arm_vif_event(cfg, vif); |
2179 | ||
7a5c1f64 HM |
2180 | err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, cfg->p2p.int_addr, |
2181 | iftype); | |
7ee2d926 HM |
2182 | if (err) { |
2183 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
d3c0b633 | 2184 | goto fail; |
7ee2d926 | 2185 | } |
d3c0b633 AS |
2186 | |
2187 | /* wait for firmware event */ | |
a9eb0c4b AS |
2188 | err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_ADD, |
2189 | BRCMF_VIF_EVENT_TIMEOUT); | |
d3c0b633 AS |
2190 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
2191 | if (!err) { | |
2192 | brcmf_err("timeout occurred\n"); | |
2193 | err = -EIO; | |
2194 | goto fail; | |
2195 | } | |
2196 | ||
2197 | /* interface created in firmware */ | |
2198 | ifp = vif->ifp; | |
2199 | if (!ifp) { | |
2200 | brcmf_err("no if pointer provided\n"); | |
2201 | err = -ENOENT; | |
7ee2d926 | 2202 | goto fail; |
d3c0b633 AS |
2203 | } |
2204 | ||
2205 | strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1); | |
6bab2e19 | 2206 | ifp->ndev->name_assign_type = name_assign_type; |
4b3a89de HM |
2207 | err = brcmf_net_attach(ifp, true); |
2208 | if (err) { | |
2209 | brcmf_err("Registering netdevice failed\n"); | |
dca2307e | 2210 | free_netdev(ifp->ndev); |
4b3a89de HM |
2211 | goto fail; |
2212 | } | |
cbb371da | 2213 | |
7ee2d926 HM |
2214 | cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = vif; |
2215 | /* Disable firmware roaming for P2P interface */ | |
2216 | brcmf_fil_iovar_int_set(ifp, "roam_off", 1); | |
2217 | if (iftype == BRCMF_FIL_P2P_IF_GO) { | |
2218 | /* set station timeout for p2p */ | |
2219 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
2220 | BRCMF_SCB_TIMEOUT_VALUE); | |
2221 | } | |
d3c0b633 AS |
2222 | return &ifp->vif->wdev; |
2223 | ||
2224 | fail: | |
427dec5f | 2225 | brcmf_free_vif(vif); |
d3c0b633 | 2226 | return ERR_PTR(err); |
9f440b7b AS |
2227 | } |
2228 | ||
2229 | /** | |
2230 | * brcmf_p2p_del_vif() - delete a P2P virtual interface. | |
2231 | * | |
2232 | * @wiphy: wiphy device of interface. | |
2233 | * @wdev: wireless device of interface. | |
9f440b7b AS |
2234 | */ |
2235 | int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2236 | { | |
856d5a01 | 2237 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); |
6eda4e2c | 2238 | struct brcmf_p2p_info *p2p = &cfg->p2p; |
9f440b7b | 2239 | struct brcmf_cfg80211_vif *vif; |
d77facb8 | 2240 | enum nl80211_iftype iftype; |
5f4f9f11 | 2241 | bool wait_for_disable = false; |
d3c0b633 | 2242 | int err; |
9f440b7b | 2243 | |
5f4f9f11 | 2244 | brcmf_dbg(TRACE, "delete P2P vif\n"); |
9f440b7b | 2245 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); |
d3c0b633 | 2246 | |
d77facb8 | 2247 | iftype = vif->wdev.iftype; |
a2044d91 | 2248 | brcmf_cfg80211_arm_vif_event(cfg, vif); |
d77facb8 | 2249 | switch (iftype) { |
5f4f9f11 AS |
2250 | case NL80211_IFTYPE_P2P_CLIENT: |
2251 | if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state)) | |
2252 | wait_for_disable = true; | |
2253 | break; | |
2254 | ||
2255 | case NL80211_IFTYPE_P2P_GO: | |
2256 | if (!brcmf_p2p_disable_p2p_if(vif)) | |
2257 | wait_for_disable = true; | |
2258 | break; | |
2259 | ||
2260 | case NL80211_IFTYPE_P2P_DEVICE: | |
9831bcb9 HM |
2261 | if (!p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif) |
2262 | return 0; | |
f37d69a4 AS |
2263 | brcmf_p2p_cancel_remain_on_channel(vif->ifp); |
2264 | brcmf_p2p_deinit_discovery(p2p); | |
20856adf RM |
2265 | break; |
2266 | ||
5f4f9f11 AS |
2267 | default: |
2268 | return -ENOTSUPP; | |
5f4f9f11 AS |
2269 | } |
2270 | ||
6eda4e2c HM |
2271 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
2272 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
2273 | ||
5f4f9f11 | 2274 | if (wait_for_disable) |
7ee2d926 | 2275 | wait_for_completion_timeout(&cfg->vif_disabled, |
63ce3d5d | 2276 | BRCMF_P2P_DISABLE_TIMEOUT); |
5f4f9f11 | 2277 | |
a2044d91 | 2278 | err = 0; |
d77facb8 | 2279 | if (iftype != NL80211_IFTYPE_P2P_DEVICE) { |
a2044d91 HM |
2280 | brcmf_vif_clear_mgmt_ies(vif); |
2281 | err = brcmf_p2p_release_p2p_if(vif); | |
2282 | } | |
7ee2d926 | 2283 | if (!err) { |
5f4f9f11 | 2284 | /* wait for firmware event */ |
a9eb0c4b AS |
2285 | err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_DEL, |
2286 | BRCMF_VIF_EVENT_TIMEOUT); | |
7ee2d926 HM |
2287 | if (!err) |
2288 | err = -EIO; | |
2289 | else | |
2290 | err = 0; | |
2291 | } | |
a63b0987 | 2292 | brcmf_remove_interface(vif->ifp, true); |
a2044d91 | 2293 | |
d3c0b633 | 2294 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
d77facb8 | 2295 | if (iftype != NL80211_IFTYPE_P2P_DEVICE) |
a2044d91 | 2296 | p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; |
5f4f9f11 AS |
2297 | |
2298 | return err; | |
9f440b7b | 2299 | } |
27f10e38 | 2300 | |
15dacf88 | 2301 | void brcmf_p2p_ifp_removed(struct brcmf_if *ifp, bool rtnl_locked) |
9831bcb9 HM |
2302 | { |
2303 | struct brcmf_cfg80211_info *cfg; | |
2304 | struct brcmf_cfg80211_vif *vif; | |
2305 | ||
2306 | brcmf_dbg(INFO, "P2P: device interface removed\n"); | |
2307 | vif = ifp->vif; | |
2308 | cfg = wdev_to_cfg(&vif->wdev); | |
2309 | cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; | |
15dacf88 | 2310 | if (!rtnl_locked) |
2311 | rtnl_lock(); | |
9831bcb9 | 2312 | cfg80211_unregister_wdev(&vif->wdev); |
15dacf88 | 2313 | if (!rtnl_locked) |
2314 | rtnl_unlock(); | |
9831bcb9 HM |
2315 | brcmf_free_vif(vif); |
2316 | } | |
2317 | ||
27f10e38 AS |
2318 | int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev) |
2319 | { | |
2320 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
2321 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2322 | struct brcmf_cfg80211_vif *vif; | |
2323 | int err; | |
2324 | ||
2325 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); | |
2326 | mutex_lock(&cfg->usr_sync); | |
2327 | err = brcmf_p2p_enable_discovery(p2p); | |
2328 | if (!err) | |
2329 | set_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state); | |
2330 | mutex_unlock(&cfg->usr_sync); | |
2331 | return err; | |
2332 | } | |
2333 | ||
2334 | void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2335 | { | |
2336 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
2337 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2338 | struct brcmf_cfg80211_vif *vif; | |
2339 | ||
2340 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); | |
d1bb34c1 HM |
2341 | /* This call can be result of the unregister_wdev call. In that case |
2342 | * we dont want to do anything anymore. Just return. The config vif | |
2343 | * will have been cleared at this point. | |
2344 | */ | |
2345 | if (p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif == vif) { | |
2346 | mutex_lock(&cfg->usr_sync); | |
a2044d91 HM |
2347 | /* Set the discovery state to SCAN */ |
2348 | (void)brcmf_p2p_set_discover_state(vif->ifp, | |
2349 | WL_P2P_DISC_ST_SCAN, 0, 0); | |
d1bb34c1 HM |
2350 | brcmf_abort_scanning(cfg); |
2351 | clear_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state); | |
2352 | mutex_unlock(&cfg->usr_sync); | |
2353 | } | |
27f10e38 | 2354 | } |
55479df8 AS |
2355 | |
2356 | /** | |
2357 | * brcmf_p2p_attach() - attach for P2P. | |
2358 | * | |
2359 | * @cfg: driver private data for cfg80211 interface. | |
2b76acdb | 2360 | * @p2pdev_forced: create p2p device interface at attach. |
55479df8 | 2361 | */ |
ae7c03f6 | 2362 | s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg, bool p2pdev_forced) |
55479df8 | 2363 | { |
55479df8 | 2364 | struct brcmf_p2p_info *p2p; |
2b76acdb | 2365 | struct brcmf_if *pri_ifp; |
55479df8 | 2366 | s32 err = 0; |
2b76acdb | 2367 | void *err_ptr; |
55479df8 AS |
2368 | |
2369 | p2p = &cfg->p2p; | |
2370 | p2p->cfg = cfg; | |
2371 | ||
2b76acdb | 2372 | pri_ifp = brcmf_get_ifp(cfg->pub, 0); |
55479df8 AS |
2373 | p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif = pri_ifp->vif; |
2374 | ||
ae7c03f6 | 2375 | if (p2pdev_forced) { |
2b76acdb HM |
2376 | err_ptr = brcmf_p2p_create_p2pdev(p2p, NULL, NULL); |
2377 | if (IS_ERR(err_ptr)) { | |
2378 | brcmf_err("P2P device creation failed.\n"); | |
2379 | err = PTR_ERR(err_ptr); | |
2380 | } | |
ae7c03f6 | 2381 | } else { |
ae7c03f6 HM |
2382 | p2p->p2pdev_dynamically = true; |
2383 | } | |
55479df8 AS |
2384 | return err; |
2385 | } | |
2386 | ||
2387 | /** | |
2388 | * brcmf_p2p_detach() - detach P2P. | |
2389 | * | |
2390 | * @p2p: P2P specific data. | |
2391 | */ | |
2392 | void brcmf_p2p_detach(struct brcmf_p2p_info *p2p) | |
2393 | { | |
2394 | struct brcmf_cfg80211_vif *vif; | |
2395 | ||
2396 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
2397 | if (vif != NULL) { | |
2398 | brcmf_p2p_cancel_remain_on_channel(vif->ifp); | |
2399 | brcmf_p2p_deinit_discovery(p2p); | |
b50ddfa8 | 2400 | brcmf_remove_interface(vif->ifp, false); |
55479df8 AS |
2401 | } |
2402 | /* just set it all to zero */ | |
2403 | memset(p2p, 0, sizeof(*p2p)); | |
2404 | } | |
2405 |