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daeccac2 | 1 | // SPDX-License-Identifier: ISC |
9f440b7b AS |
2 | /* |
3 | * Copyright (c) 2012 Broadcom Corporation | |
9f440b7b AS |
4 | */ |
5 | #include <linux/slab.h> | |
6 | #include <linux/netdevice.h> | |
27f10e38 | 7 | #include <linux/etherdevice.h> |
f7a40873 | 8 | #include <linux/rtnetlink.h> |
9f440b7b AS |
9 | #include <net/cfg80211.h> |
10 | ||
11 | #include <brcmu_wifi.h> | |
12 | #include <brcmu_utils.h> | |
13 | #include <defs.h> | |
122d3d04 | 14 | #include "core.h" |
a8e8ed34 | 15 | #include "debug.h" |
9f440b7b | 16 | #include "fwil.h" |
d3c0b633 | 17 | #include "fwil_types.h" |
9f440b7b | 18 | #include "p2p.h" |
bfe81975 | 19 | #include "cfg80211.h" |
babfd3ca | 20 | #include "feature.h" |
9f440b7b AS |
21 | |
22 | /* parameters used for p2p escan */ | |
23 | #define P2PAPI_SCAN_NPROBES 1 | |
24 | #define P2PAPI_SCAN_DWELL_TIME_MS 80 | |
25 | #define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40 | |
26 | #define P2PAPI_SCAN_HOME_TIME_MS 60 | |
27 | #define P2PAPI_SCAN_NPROBS_TIME_MS 30 | |
28 | #define P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS 100 | |
29 | #define WL_SCAN_CONNECT_DWELL_TIME_MS 200 | |
30 | #define WL_SCAN_JOIN_PROBE_INTERVAL_MS 20 | |
31 | ||
32 | #define BRCMF_P2P_WILDCARD_SSID "DIRECT-" | |
33 | #define BRCMF_P2P_WILDCARD_SSID_LEN (sizeof(BRCMF_P2P_WILDCARD_SSID) - 1) | |
34 | ||
35 | #define SOCIAL_CHAN_1 1 | |
36 | #define SOCIAL_CHAN_2 6 | |
37 | #define SOCIAL_CHAN_3 11 | |
6eda4e2c HM |
38 | #define IS_P2P_SOCIAL_CHANNEL(channel) ((channel == SOCIAL_CHAN_1) || \ |
39 | (channel == SOCIAL_CHAN_2) || \ | |
40 | (channel == SOCIAL_CHAN_3)) | |
15a953d0 | 41 | #define BRCMF_P2P_TEMP_CHAN SOCIAL_CHAN_3 |
9f440b7b AS |
42 | #define SOCIAL_CHAN_CNT 3 |
43 | #define AF_PEER_SEARCH_CNT 2 | |
44 | ||
d3c0b633 AS |
45 | #define BRCMF_SCB_TIMEOUT_VALUE 20 |
46 | ||
e6da3400 HM |
47 | #define P2P_VER 9 /* P2P version: 9=WiFi P2P v1.0 */ |
48 | #define P2P_PUB_AF_CATEGORY 0x04 | |
49 | #define P2P_PUB_AF_ACTION 0x09 | |
50 | #define P2P_AF_CATEGORY 0x7f | |
51 | #define P2P_OUI "\x50\x6F\x9A" /* P2P OUI */ | |
52 | #define P2P_OUI_LEN 3 /* P2P OUI length */ | |
53 | ||
18e2f61d HM |
54 | /* Action Frame Constants */ |
55 | #define DOT11_ACTION_HDR_LEN 2 /* action frame category + action */ | |
56 | #define DOT11_ACTION_CAT_OFF 0 /* category offset */ | |
57 | #define DOT11_ACTION_ACT_OFF 1 /* action offset */ | |
58 | ||
59 | #define P2P_AF_DWELL_TIME 200 | |
60 | #define P2P_AF_MIN_DWELL_TIME 100 | |
61 | #define P2P_AF_MED_DWELL_TIME 400 | |
62 | #define P2P_AF_LONG_DWELL_TIME 1000 | |
9c29da3f | 63 | #define P2P_AF_TX_MAX_RETRY 5 |
63ce3d5d | 64 | #define P2P_AF_MAX_WAIT_TIME msecs_to_jiffies(2000) |
18e2f61d HM |
65 | #define P2P_INVALID_CHANNEL -1 |
66 | #define P2P_CHANNEL_SYNC_RETRY 5 | |
edb6d688 | 67 | #define P2P_AF_FRM_SCAN_MAX_WAIT msecs_to_jiffies(450) |
6eda4e2c | 68 | #define P2P_DEFAULT_SLEEP_TIME_VSDB 200 |
7f26cedf | 69 | #define P2P_AF_RETRY_DELAY_TIME 40 |
18e2f61d | 70 | |
e6da3400 HM |
71 | /* WiFi P2P Public Action Frame OUI Subtypes */ |
72 | #define P2P_PAF_GON_REQ 0 /* Group Owner Negotiation Req */ | |
73 | #define P2P_PAF_GON_RSP 1 /* Group Owner Negotiation Rsp */ | |
74 | #define P2P_PAF_GON_CONF 2 /* Group Owner Negotiation Confirm */ | |
75 | #define P2P_PAF_INVITE_REQ 3 /* P2P Invitation Request */ | |
76 | #define P2P_PAF_INVITE_RSP 4 /* P2P Invitation Response */ | |
77 | #define P2P_PAF_DEVDIS_REQ 5 /* Device Discoverability Request */ | |
78 | #define P2P_PAF_DEVDIS_RSP 6 /* Device Discoverability Response */ | |
79 | #define P2P_PAF_PROVDIS_REQ 7 /* Provision Discovery Request */ | |
80 | #define P2P_PAF_PROVDIS_RSP 8 /* Provision Discovery Response */ | |
81 | #define P2P_PAF_SUBTYPE_INVALID 255 /* Invalid Subtype */ | |
82 | ||
83 | /* WiFi P2P Action Frame OUI Subtypes */ | |
84 | #define P2P_AF_NOTICE_OF_ABSENCE 0 /* Notice of Absence */ | |
85 | #define P2P_AF_PRESENCE_REQ 1 /* P2P Presence Request */ | |
86 | #define P2P_AF_PRESENCE_RSP 2 /* P2P Presence Response */ | |
87 | #define P2P_AF_GO_DISC_REQ 3 /* GO Discoverability Request */ | |
88 | ||
89 | /* P2P Service Discovery related */ | |
90 | #define P2PSD_ACTION_CATEGORY 0x04 /* Public action frame */ | |
91 | #define P2PSD_ACTION_ID_GAS_IREQ 0x0a /* GAS Initial Request AF */ | |
92 | #define P2PSD_ACTION_ID_GAS_IRESP 0x0b /* GAS Initial Response AF */ | |
7f5f00cd CIK |
93 | #define P2PSD_ACTION_ID_GAS_CREQ 0x0c /* GAS Comeback Request AF */ |
94 | #define P2PSD_ACTION_ID_GAS_CRESP 0x0d /* GAS Comeback Response AF */ | |
e6da3400 | 95 | |
63ce3d5d | 96 | #define BRCMF_P2P_DISABLE_TIMEOUT msecs_to_jiffies(500) |
9c29da3f JC |
97 | |
98 | /* Mask for retry counter of custom dwell time */ | |
99 | #define CUSTOM_RETRY_MASK 0xff000000 | |
9f440b7b AS |
100 | /** |
101 | * struct brcmf_p2p_disc_st_le - set discovery state in firmware. | |
102 | * | |
103 | * @state: requested discovery state (see enum brcmf_p2p_disc_state). | |
104 | * @chspec: channel parameter for %WL_P2P_DISC_ST_LISTEN state. | |
105 | * @dwell: dwell time in ms for %WL_P2P_DISC_ST_LISTEN state. | |
106 | */ | |
107 | struct brcmf_p2p_disc_st_le { | |
108 | u8 state; | |
109 | __le16 chspec; | |
110 | __le16 dwell; | |
111 | }; | |
112 | ||
113 | /** | |
114 | * enum brcmf_p2p_disc_state - P2P discovery state values | |
115 | * | |
116 | * @WL_P2P_DISC_ST_SCAN: P2P discovery with wildcard SSID and P2P IE. | |
117 | * @WL_P2P_DISC_ST_LISTEN: P2P discovery off-channel for specified time. | |
118 | * @WL_P2P_DISC_ST_SEARCH: P2P discovery with P2P wildcard SSID and P2P IE. | |
119 | */ | |
120 | enum brcmf_p2p_disc_state { | |
121 | WL_P2P_DISC_ST_SCAN, | |
122 | WL_P2P_DISC_ST_LISTEN, | |
123 | WL_P2P_DISC_ST_SEARCH | |
124 | }; | |
125 | ||
126 | /** | |
127 | * struct brcmf_p2p_scan_le - P2P specific scan request. | |
128 | * | |
129 | * @type: type of scan method requested (values: 'E' or 'S'). | |
130 | * @reserved: reserved (ignored). | |
131 | * @eparams: parameters used for type 'E'. | |
132 | * @sparams: parameters used for type 'S'. | |
133 | */ | |
134 | struct brcmf_p2p_scan_le { | |
135 | u8 type; | |
136 | u8 reserved[3]; | |
137 | union { | |
138 | struct brcmf_escan_params_le eparams; | |
139 | struct brcmf_scan_params_le sparams; | |
140 | }; | |
141 | }; | |
142 | ||
e6da3400 HM |
143 | /** |
144 | * struct brcmf_p2p_pub_act_frame - WiFi P2P Public Action Frame | |
145 | * | |
146 | * @category: P2P_PUB_AF_CATEGORY | |
147 | * @action: P2P_PUB_AF_ACTION | |
57636058 | 148 | * @oui: P2P_OUI |
e6da3400 HM |
149 | * @oui_type: OUI type - P2P_VER |
150 | * @subtype: OUI subtype - P2P_TYPE_* | |
151 | * @dialog_token: nonzero, identifies req/rsp transaction | |
57636058 | 152 | * @elts: Variable length information elements. |
e6da3400 HM |
153 | */ |
154 | struct brcmf_p2p_pub_act_frame { | |
155 | u8 category; | |
156 | u8 action; | |
157 | u8 oui[3]; | |
158 | u8 oui_type; | |
159 | u8 subtype; | |
160 | u8 dialog_token; | |
f3c04fff | 161 | u8 elts[]; |
e6da3400 HM |
162 | }; |
163 | ||
164 | /** | |
165 | * struct brcmf_p2p_action_frame - WiFi P2P Action Frame | |
166 | * | |
167 | * @category: P2P_AF_CATEGORY | |
57636058 | 168 | * @oui: OUI - P2P_OUI |
e6da3400 HM |
169 | * @type: OUI Type - P2P_VER |
170 | * @subtype: OUI Subtype - P2P_AF_* | |
171 | * @dialog_token: nonzero, identifies req/resp tranaction | |
57636058 | 172 | * @elts: Variable length information elements. |
e6da3400 HM |
173 | */ |
174 | struct brcmf_p2p_action_frame { | |
175 | u8 category; | |
176 | u8 oui[3]; | |
177 | u8 type; | |
178 | u8 subtype; | |
179 | u8 dialog_token; | |
f3c04fff | 180 | u8 elts[]; |
e6da3400 HM |
181 | }; |
182 | ||
183 | /** | |
184 | * struct brcmf_p2psd_gas_pub_act_frame - Wi-Fi GAS Public Action Frame | |
185 | * | |
186 | * @category: 0x04 Public Action Frame | |
187 | * @action: 0x6c Advertisement Protocol | |
188 | * @dialog_token: nonzero, identifies req/rsp transaction | |
57636058 | 189 | * @query_data: Query Data. SD gas ireq SD gas iresp |
e6da3400 HM |
190 | */ |
191 | struct brcmf_p2psd_gas_pub_act_frame { | |
192 | u8 category; | |
193 | u8 action; | |
194 | u8 dialog_token; | |
f3c04fff | 195 | u8 query_data[]; |
e6da3400 HM |
196 | }; |
197 | ||
18e2f61d HM |
198 | /** |
199 | * struct brcmf_config_af_params - Action Frame Parameters for tx. | |
200 | * | |
18e2f61d HM |
201 | * @mpc_onoff: To make sure to send successfully action frame, we have to |
202 | * turn off mpc 0: off, 1: on, (-1): do nothing | |
6eda4e2c | 203 | * @search_channel: 1: search peer's channel to send af |
57636058 | 204 | * @extra_listen: keep the dwell time to get af response frame. |
18e2f61d HM |
205 | */ |
206 | struct brcmf_config_af_params { | |
18e2f61d | 207 | s32 mpc_onoff; |
6eda4e2c HM |
208 | bool search_channel; |
209 | bool extra_listen; | |
18e2f61d | 210 | }; |
e6da3400 HM |
211 | |
212 | /** | |
213 | * brcmf_p2p_is_pub_action() - true if p2p public type frame. | |
214 | * | |
215 | * @frame: action frame data. | |
216 | * @frame_len: length of action frame data. | |
217 | * | |
218 | * Determine if action frame is p2p public action type | |
219 | */ | |
220 | static bool brcmf_p2p_is_pub_action(void *frame, u32 frame_len) | |
221 | { | |
222 | struct brcmf_p2p_pub_act_frame *pact_frm; | |
223 | ||
224 | if (frame == NULL) | |
225 | return false; | |
226 | ||
227 | pact_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
f3c04fff | 228 | if (frame_len < sizeof(*pact_frm)) |
e6da3400 HM |
229 | return false; |
230 | ||
231 | if (pact_frm->category == P2P_PUB_AF_CATEGORY && | |
232 | pact_frm->action == P2P_PUB_AF_ACTION && | |
233 | pact_frm->oui_type == P2P_VER && | |
234 | memcmp(pact_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0) | |
235 | return true; | |
236 | ||
237 | return false; | |
238 | } | |
239 | ||
240 | /** | |
241 | * brcmf_p2p_is_p2p_action() - true if p2p action type frame. | |
242 | * | |
243 | * @frame: action frame data. | |
244 | * @frame_len: length of action frame data. | |
245 | * | |
246 | * Determine if action frame is p2p action type | |
247 | */ | |
248 | static bool brcmf_p2p_is_p2p_action(void *frame, u32 frame_len) | |
249 | { | |
250 | struct brcmf_p2p_action_frame *act_frm; | |
251 | ||
252 | if (frame == NULL) | |
253 | return false; | |
254 | ||
255 | act_frm = (struct brcmf_p2p_action_frame *)frame; | |
f3c04fff | 256 | if (frame_len < sizeof(*act_frm)) |
e6da3400 HM |
257 | return false; |
258 | ||
259 | if (act_frm->category == P2P_AF_CATEGORY && | |
260 | act_frm->type == P2P_VER && | |
261 | memcmp(act_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0) | |
262 | return true; | |
263 | ||
264 | return false; | |
265 | } | |
266 | ||
267 | /** | |
268 | * brcmf_p2p_is_gas_action() - true if p2p gas action type frame. | |
269 | * | |
270 | * @frame: action frame data. | |
271 | * @frame_len: length of action frame data. | |
272 | * | |
273 | * Determine if action frame is p2p gas action type | |
274 | */ | |
275 | static bool brcmf_p2p_is_gas_action(void *frame, u32 frame_len) | |
276 | { | |
277 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
278 | ||
279 | if (frame == NULL) | |
280 | return false; | |
281 | ||
282 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
f3c04fff | 283 | if (frame_len < sizeof(*sd_act_frm)) |
e6da3400 HM |
284 | return false; |
285 | ||
286 | if (sd_act_frm->category != P2PSD_ACTION_CATEGORY) | |
287 | return false; | |
288 | ||
289 | if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_IREQ || | |
290 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_IRESP || | |
291 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_CREQ || | |
292 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_CRESP) | |
293 | return true; | |
294 | ||
295 | return false; | |
296 | } | |
297 | ||
298 | /** | |
299 | * brcmf_p2p_print_actframe() - debug print routine. | |
300 | * | |
301 | * @tx: Received or to be transmitted | |
302 | * @frame: action frame data. | |
303 | * @frame_len: length of action frame data. | |
304 | * | |
305 | * Print information about the p2p action frame | |
306 | */ | |
0a4cf487 HM |
307 | |
308 | #ifdef DEBUG | |
309 | ||
e6da3400 HM |
310 | static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len) |
311 | { | |
312 | struct brcmf_p2p_pub_act_frame *pact_frm; | |
313 | struct brcmf_p2p_action_frame *act_frm; | |
314 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
315 | ||
316 | if (!frame || frame_len <= 2) | |
317 | return; | |
318 | ||
319 | if (brcmf_p2p_is_pub_action(frame, frame_len)) { | |
320 | pact_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
321 | switch (pact_frm->subtype) { | |
322 | case P2P_PAF_GON_REQ: | |
323 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Req Frame\n", | |
324 | (tx) ? "TX" : "RX"); | |
325 | break; | |
326 | case P2P_PAF_GON_RSP: | |
327 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Rsp Frame\n", | |
328 | (tx) ? "TX" : "RX"); | |
329 | break; | |
330 | case P2P_PAF_GON_CONF: | |
331 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Confirm Frame\n", | |
332 | (tx) ? "TX" : "RX"); | |
333 | break; | |
334 | case P2P_PAF_INVITE_REQ: | |
335 | brcmf_dbg(TRACE, "%s P2P Invitation Request Frame\n", | |
336 | (tx) ? "TX" : "RX"); | |
337 | break; | |
338 | case P2P_PAF_INVITE_RSP: | |
339 | brcmf_dbg(TRACE, "%s P2P Invitation Response Frame\n", | |
340 | (tx) ? "TX" : "RX"); | |
341 | break; | |
342 | case P2P_PAF_DEVDIS_REQ: | |
343 | brcmf_dbg(TRACE, "%s P2P Device Discoverability Request Frame\n", | |
344 | (tx) ? "TX" : "RX"); | |
345 | break; | |
346 | case P2P_PAF_DEVDIS_RSP: | |
347 | brcmf_dbg(TRACE, "%s P2P Device Discoverability Response Frame\n", | |
348 | (tx) ? "TX" : "RX"); | |
349 | break; | |
350 | case P2P_PAF_PROVDIS_REQ: | |
351 | brcmf_dbg(TRACE, "%s P2P Provision Discovery Request Frame\n", | |
352 | (tx) ? "TX" : "RX"); | |
353 | break; | |
354 | case P2P_PAF_PROVDIS_RSP: | |
355 | brcmf_dbg(TRACE, "%s P2P Provision Discovery Response Frame\n", | |
356 | (tx) ? "TX" : "RX"); | |
357 | break; | |
358 | default: | |
359 | brcmf_dbg(TRACE, "%s Unknown P2P Public Action Frame\n", | |
360 | (tx) ? "TX" : "RX"); | |
361 | break; | |
362 | } | |
363 | } else if (brcmf_p2p_is_p2p_action(frame, frame_len)) { | |
364 | act_frm = (struct brcmf_p2p_action_frame *)frame; | |
365 | switch (act_frm->subtype) { | |
366 | case P2P_AF_NOTICE_OF_ABSENCE: | |
367 | brcmf_dbg(TRACE, "%s P2P Notice of Absence Frame\n", | |
368 | (tx) ? "TX" : "RX"); | |
369 | break; | |
370 | case P2P_AF_PRESENCE_REQ: | |
371 | brcmf_dbg(TRACE, "%s P2P Presence Request Frame\n", | |
372 | (tx) ? "TX" : "RX"); | |
373 | break; | |
374 | case P2P_AF_PRESENCE_RSP: | |
375 | brcmf_dbg(TRACE, "%s P2P Presence Response Frame\n", | |
376 | (tx) ? "TX" : "RX"); | |
377 | break; | |
378 | case P2P_AF_GO_DISC_REQ: | |
379 | brcmf_dbg(TRACE, "%s P2P Discoverability Request Frame\n", | |
380 | (tx) ? "TX" : "RX"); | |
381 | break; | |
382 | default: | |
383 | brcmf_dbg(TRACE, "%s Unknown P2P Action Frame\n", | |
384 | (tx) ? "TX" : "RX"); | |
385 | } | |
386 | ||
387 | } else if (brcmf_p2p_is_gas_action(frame, frame_len)) { | |
388 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
389 | switch (sd_act_frm->action) { | |
390 | case P2PSD_ACTION_ID_GAS_IREQ: | |
391 | brcmf_dbg(TRACE, "%s P2P GAS Initial Request\n", | |
392 | (tx) ? "TX" : "RX"); | |
393 | break; | |
394 | case P2PSD_ACTION_ID_GAS_IRESP: | |
395 | brcmf_dbg(TRACE, "%s P2P GAS Initial Response\n", | |
396 | (tx) ? "TX" : "RX"); | |
397 | break; | |
398 | case P2PSD_ACTION_ID_GAS_CREQ: | |
7f5f00cd | 399 | brcmf_dbg(TRACE, "%s P2P GAS Comeback Request\n", |
e6da3400 HM |
400 | (tx) ? "TX" : "RX"); |
401 | break; | |
402 | case P2PSD_ACTION_ID_GAS_CRESP: | |
7f5f00cd | 403 | brcmf_dbg(TRACE, "%s P2P GAS Comeback Response\n", |
e6da3400 HM |
404 | (tx) ? "TX" : "RX"); |
405 | break; | |
406 | default: | |
407 | brcmf_dbg(TRACE, "%s Unknown P2P GAS Frame\n", | |
408 | (tx) ? "TX" : "RX"); | |
409 | break; | |
410 | } | |
411 | } | |
412 | } | |
413 | ||
0a4cf487 HM |
414 | #else |
415 | ||
416 | static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len) | |
417 | { | |
418 | } | |
419 | ||
420 | #endif | |
421 | ||
6eda4e2c | 422 | |
9f440b7b AS |
423 | /** |
424 | * brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation. | |
425 | * | |
2fde59d9 HM |
426 | * @ifp: ifp to use for iovars (primary). |
427 | * @p2p_mac: mac address to configure for p2p_da_override | |
9f440b7b | 428 | */ |
2fde59d9 | 429 | static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac) |
9f440b7b | 430 | { |
dcb1471b | 431 | struct brcmf_pub *drvr = ifp->drvr; |
9f440b7b AS |
432 | s32 ret = 0; |
433 | ||
27f10e38 | 434 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); |
2fde59d9 | 435 | brcmf_fil_iovar_int_set(ifp, "apsta", 1); |
27f10e38 | 436 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); |
9f440b7b AS |
437 | |
438 | /* In case of COB type, firmware has default mac address | |
439 | * After Initializing firmware, we have to set current mac address to | |
f48556e1 AS |
440 | * firmware for P2P device address. This must be done with discovery |
441 | * disabled. | |
9f440b7b | 442 | */ |
f48556e1 AS |
443 | brcmf_fil_iovar_int_set(ifp, "p2p_disc", 0); |
444 | ||
2fde59d9 HM |
445 | ret = brcmf_fil_iovar_data_set(ifp, "p2p_da_override", p2p_mac, |
446 | ETH_ALEN); | |
9f440b7b | 447 | if (ret) |
dcb1471b | 448 | bphy_err(drvr, "failed to update device address ret %d\n", ret); |
9f440b7b AS |
449 | |
450 | return ret; | |
451 | } | |
452 | ||
453 | /** | |
454 | * brcmf_p2p_generate_bss_mac() - derive mac addresses for P2P. | |
455 | * | |
456 | * @p2p: P2P specific data. | |
27f10e38 | 457 | * @dev_addr: optional device address. |
9f440b7b | 458 | * |
27f10e38 | 459 | * P2P needs mac addresses for P2P device and interface. If no device |
455f3e76 AVS |
460 | * address it specified, these are derived from a random ethernet |
461 | * address. | |
9f440b7b | 462 | */ |
27f10e38 | 463 | static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr) |
9f440b7b | 464 | { |
053ac9e1 | 465 | struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
455f3e76 | 466 | bool random_addr = false; |
053ac9e1 CHL |
467 | bool local_admin = false; |
468 | ||
469 | if (!dev_addr || is_zero_ether_addr(dev_addr)) { | |
470 | /* If the primary interface address is already locally | |
471 | * administered, create a new random address. | |
472 | */ | |
473 | if (pri_ifp->mac_addr[0] & 0x02) { | |
474 | random_addr = true; | |
475 | } else { | |
476 | dev_addr = pri_ifp->mac_addr; | |
477 | local_admin = true; | |
478 | } | |
479 | } | |
2fde59d9 | 480 | |
455f3e76 AVS |
481 | /* Generate the P2P Device Address obtaining a random ethernet |
482 | * address with the locally administered bit set. | |
9f440b7b | 483 | */ |
455f3e76 AVS |
484 | if (random_addr) |
485 | eth_random_addr(p2p->dev_addr); | |
486 | else | |
487 | memcpy(p2p->dev_addr, dev_addr, ETH_ALEN); | |
9f440b7b | 488 | |
053ac9e1 CHL |
489 | if (local_admin) |
490 | p2p->dev_addr[0] |= 0x02; | |
491 | ||
9f440b7b AS |
492 | /* Generate the P2P Interface Address. If the discovery and connection |
493 | * BSSCFGs need to simultaneously co-exist, then this address must be | |
494 | * different from the P2P Device Address, but also locally administered. | |
495 | */ | |
babfd3ca WF |
496 | memcpy(p2p->conn_int_addr, p2p->dev_addr, ETH_ALEN); |
497 | p2p->conn_int_addr[0] |= 0x02; | |
498 | p2p->conn_int_addr[4] ^= 0x80; | |
499 | ||
500 | memcpy(p2p->conn2_int_addr, p2p->dev_addr, ETH_ALEN); | |
501 | p2p->conn2_int_addr[0] |= 0x02; | |
502 | p2p->conn2_int_addr[4] ^= 0x90; | |
9f440b7b AS |
503 | } |
504 | ||
505 | /** | |
506 | * brcmf_p2p_scan_is_p2p_request() - is cfg80211 scan request a P2P scan. | |
507 | * | |
508 | * @request: the scan request as received from cfg80211. | |
509 | * | |
510 | * returns true if one of the ssids in the request matches the | |
511 | * P2P wildcard ssid; otherwise returns false. | |
512 | */ | |
513 | static bool brcmf_p2p_scan_is_p2p_request(struct cfg80211_scan_request *request) | |
514 | { | |
515 | struct cfg80211_ssid *ssids = request->ssids; | |
516 | int i; | |
517 | ||
518 | for (i = 0; i < request->n_ssids; i++) { | |
519 | if (ssids[i].ssid_len != BRCMF_P2P_WILDCARD_SSID_LEN) | |
520 | continue; | |
521 | ||
522 | brcmf_dbg(INFO, "comparing ssid \"%s\"", ssids[i].ssid); | |
523 | if (!memcmp(BRCMF_P2P_WILDCARD_SSID, ssids[i].ssid, | |
524 | BRCMF_P2P_WILDCARD_SSID_LEN)) | |
525 | return true; | |
526 | } | |
527 | return false; | |
528 | } | |
529 | ||
530 | /** | |
531 | * brcmf_p2p_set_discover_state - set discover state in firmware. | |
532 | * | |
533 | * @ifp: low-level interface object. | |
534 | * @state: discover state to set. | |
535 | * @chanspec: channel parameters (for state @WL_P2P_DISC_ST_LISTEN only). | |
536 | * @listen_ms: duration to listen (for state @WL_P2P_DISC_ST_LISTEN only). | |
537 | */ | |
538 | static s32 brcmf_p2p_set_discover_state(struct brcmf_if *ifp, u8 state, | |
539 | u16 chanspec, u16 listen_ms) | |
540 | { | |
541 | struct brcmf_p2p_disc_st_le discover_state; | |
542 | s32 ret = 0; | |
543 | brcmf_dbg(TRACE, "enter\n"); | |
544 | ||
545 | discover_state.state = state; | |
546 | discover_state.chspec = cpu_to_le16(chanspec); | |
547 | discover_state.dwell = cpu_to_le16(listen_ms); | |
548 | ret = brcmf_fil_bsscfg_data_set(ifp, "p2p_state", &discover_state, | |
549 | sizeof(discover_state)); | |
550 | return ret; | |
551 | } | |
552 | ||
9f440b7b AS |
553 | /** |
554 | * brcmf_p2p_deinit_discovery() - disable P2P device discovery. | |
555 | * | |
556 | * @p2p: P2P specific data. | |
557 | * | |
2fde59d9 | 558 | * Resets the discovery state and disables it in firmware. |
9f440b7b AS |
559 | */ |
560 | static s32 brcmf_p2p_deinit_discovery(struct brcmf_p2p_info *p2p) | |
561 | { | |
2fde59d9 | 562 | struct brcmf_cfg80211_vif *vif; |
9f440b7b | 563 | |
2fde59d9 | 564 | brcmf_dbg(TRACE, "enter\n"); |
9f440b7b AS |
565 | |
566 | /* Set the discovery state to SCAN */ | |
2fde59d9 HM |
567 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
568 | (void)brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
9f440b7b AS |
569 | |
570 | /* Disable P2P discovery in the firmware */ | |
2fde59d9 HM |
571 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; |
572 | (void)brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 0); | |
9f440b7b AS |
573 | |
574 | return 0; | |
575 | } | |
576 | ||
577 | /** | |
578 | * brcmf_p2p_enable_discovery() - initialize and configure discovery. | |
579 | * | |
580 | * @p2p: P2P specific data. | |
9f440b7b AS |
581 | * |
582 | * Initializes the discovery device and configure the virtual interface. | |
583 | */ | |
0de8aace | 584 | static int brcmf_p2p_enable_discovery(struct brcmf_p2p_info *p2p) |
9f440b7b | 585 | { |
dcb1471b | 586 | struct brcmf_pub *drvr = p2p->cfg->pub; |
9f440b7b AS |
587 | struct brcmf_cfg80211_vif *vif; |
588 | s32 ret = 0; | |
589 | ||
590 | brcmf_dbg(TRACE, "enter\n"); | |
591 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
2fde59d9 | 592 | if (!vif) { |
dcb1471b | 593 | bphy_err(drvr, "P2P config device not available\n"); |
2fde59d9 | 594 | ret = -EPERM; |
0de8aace | 595 | goto exit; |
9f440b7b AS |
596 | } |
597 | ||
2fde59d9 HM |
598 | if (test_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status)) { |
599 | brcmf_dbg(INFO, "P2P config device already configured\n"); | |
9f440b7b AS |
600 | goto exit; |
601 | } | |
602 | ||
2fde59d9 HM |
603 | /* Re-initialize P2P Discovery in the firmware */ |
604 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
605 | ret = brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 1); | |
606 | if (ret < 0) { | |
dcb1471b | 607 | bphy_err(drvr, "set p2p_disc error\n"); |
2fde59d9 HM |
608 | goto exit; |
609 | } | |
9f440b7b | 610 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
2fde59d9 HM |
611 | ret = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); |
612 | if (ret < 0) { | |
dcb1471b | 613 | bphy_err(drvr, "unable to set WL_P2P_DISC_ST_SCAN\n"); |
2fde59d9 HM |
614 | goto exit; |
615 | } | |
9f440b7b AS |
616 | |
617 | /* | |
618 | * Set wsec to any non-zero value in the discovery bsscfg | |
619 | * to ensure our P2P probe responses have the privacy bit | |
620 | * set in the 802.11 WPA IE. Some peer devices may not | |
621 | * initiate WPS with us if this bit is not set. | |
622 | */ | |
623 | ret = brcmf_fil_bsscfg_int_set(vif->ifp, "wsec", AES_ENABLED); | |
2fde59d9 | 624 | if (ret < 0) { |
dcb1471b | 625 | bphy_err(drvr, "wsec error %d\n", ret); |
2fde59d9 HM |
626 | goto exit; |
627 | } | |
9f440b7b | 628 | |
2fde59d9 | 629 | set_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status); |
9f440b7b AS |
630 | exit: |
631 | return ret; | |
632 | } | |
633 | ||
0de8aace | 634 | /** |
9f440b7b AS |
635 | * brcmf_p2p_escan() - initiate a P2P scan. |
636 | * | |
637 | * @p2p: P2P specific data. | |
638 | * @num_chans: number of channels to scan. | |
639 | * @chanspecs: channel parameters for @num_chans channels. | |
640 | * @search_state: P2P discover state to use. | |
9f440b7b AS |
641 | * @bss_type: type of P2P bss. |
642 | */ | |
643 | static s32 brcmf_p2p_escan(struct brcmf_p2p_info *p2p, u32 num_chans, | |
c4958106 | 644 | u16 chanspecs[], s32 search_state, |
9f440b7b AS |
645 | enum p2p_bss_type bss_type) |
646 | { | |
dcb1471b | 647 | struct brcmf_pub *drvr = p2p->cfg->pub; |
9f440b7b AS |
648 | s32 ret = 0; |
649 | s32 memsize = offsetof(struct brcmf_p2p_scan_le, | |
650 | eparams.params_le.channel_list); | |
651 | s32 nprobes; | |
652 | s32 active; | |
653 | u32 i; | |
654 | u8 *memblk; | |
655 | struct brcmf_cfg80211_vif *vif; | |
656 | struct brcmf_p2p_scan_le *p2p_params; | |
657 | struct brcmf_scan_params_le *sparams; | |
9f440b7b | 658 | |
9f440b7b AS |
659 | memsize += num_chans * sizeof(__le16); |
660 | memblk = kzalloc(memsize, GFP_KERNEL); | |
661 | if (!memblk) | |
662 | return -ENOMEM; | |
663 | ||
664 | vif = p2p->bss_idx[bss_type].vif; | |
665 | if (vif == NULL) { | |
dcb1471b | 666 | bphy_err(drvr, "no vif for bss type %d\n", bss_type); |
9f440b7b AS |
667 | ret = -EINVAL; |
668 | goto exit; | |
669 | } | |
e9a6ca82 HM |
670 | p2p_params = (struct brcmf_p2p_scan_le *)memblk; |
671 | sparams = &p2p_params->eparams.params_le; | |
9f440b7b AS |
672 | |
673 | switch (search_state) { | |
674 | case WL_P2P_DISC_ST_SEARCH: | |
675 | /* | |
676 | * If we in SEARCH STATE, we don't need to set SSID explictly | |
e9a6ca82 HM |
677 | * because dongle use P2P WILDCARD internally by default, use |
678 | * null ssid, which it is already due to kzalloc. | |
9f440b7b | 679 | */ |
9f440b7b AS |
680 | break; |
681 | case WL_P2P_DISC_ST_SCAN: | |
682 | /* | |
683 | * wpa_supplicant has p2p_find command with type social or | |
684 | * progressive. For progressive, we need to set the ssid to | |
685 | * P2P WILDCARD because we just do broadcast scan unless | |
686 | * setting SSID. | |
687 | */ | |
e9a6ca82 HM |
688 | sparams->ssid_le.SSID_len = |
689 | cpu_to_le32(BRCMF_P2P_WILDCARD_SSID_LEN); | |
690 | memcpy(sparams->ssid_le.SSID, BRCMF_P2P_WILDCARD_SSID, | |
691 | BRCMF_P2P_WILDCARD_SSID_LEN); | |
9f440b7b AS |
692 | break; |
693 | default: | |
dcb1471b | 694 | bphy_err(drvr, " invalid search state %d\n", search_state); |
9f440b7b AS |
695 | ret = -EINVAL; |
696 | goto exit; | |
697 | } | |
698 | ||
699 | brcmf_p2p_set_discover_state(vif->ifp, search_state, 0, 0); | |
700 | ||
701 | /* | |
702 | * set p2p scan parameters. | |
703 | */ | |
9f440b7b AS |
704 | p2p_params->type = 'E'; |
705 | ||
706 | /* determine the scan engine parameters */ | |
9f440b7b | 707 | sparams->bss_type = DOT11_BSSTYPE_ANY; |
bbf35414 | 708 | sparams->scan_type = BRCMF_SCANTYPE_ACTIVE; |
9f440b7b | 709 | |
93803b33 | 710 | eth_broadcast_addr(sparams->bssid); |
9f440b7b AS |
711 | sparams->home_time = cpu_to_le32(P2PAPI_SCAN_HOME_TIME_MS); |
712 | ||
713 | /* | |
714 | * SOCIAL_CHAN_CNT + 1 takes care of the Progressive scan | |
715 | * supported by the supplicant. | |
716 | */ | |
717 | if (num_chans == SOCIAL_CHAN_CNT || num_chans == (SOCIAL_CHAN_CNT + 1)) | |
718 | active = P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS; | |
719 | else if (num_chans == AF_PEER_SEARCH_CNT) | |
720 | active = P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS; | |
e843bb19 | 721 | else if (brcmf_get_vif_state_any(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED)) |
9f440b7b AS |
722 | active = -1; |
723 | else | |
724 | active = P2PAPI_SCAN_DWELL_TIME_MS; | |
725 | ||
726 | /* Override scan params to find a peer for a connection */ | |
727 | if (num_chans == 1) { | |
728 | active = WL_SCAN_CONNECT_DWELL_TIME_MS; | |
18e2f61d | 729 | /* WAR to sync with presence period of VSDB GO. |
9f440b7b AS |
730 | * send probe request more frequently |
731 | */ | |
732 | nprobes = active / WL_SCAN_JOIN_PROBE_INTERVAL_MS; | |
733 | } else { | |
734 | nprobes = active / P2PAPI_SCAN_NPROBS_TIME_MS; | |
735 | } | |
736 | ||
737 | if (nprobes <= 0) | |
738 | nprobes = 1; | |
739 | ||
740 | brcmf_dbg(INFO, "nprobes # %d, active_time %d\n", nprobes, active); | |
741 | sparams->active_time = cpu_to_le32(active); | |
742 | sparams->nprobes = cpu_to_le32(nprobes); | |
743 | sparams->passive_time = cpu_to_le32(-1); | |
744 | sparams->channel_num = cpu_to_le32(num_chans & | |
745 | BRCMF_SCAN_PARAMS_COUNT_MASK); | |
746 | for (i = 0; i < num_chans; i++) | |
747 | sparams->channel_list[i] = cpu_to_le16(chanspecs[i]); | |
748 | ||
749 | /* set the escan specific parameters */ | |
750 | p2p_params->eparams.version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION); | |
c4958106 | 751 | p2p_params->eparams.action = cpu_to_le16(WL_ESCAN_ACTION_START); |
9f440b7b AS |
752 | p2p_params->eparams.sync_id = cpu_to_le16(0x1234); |
753 | /* perform p2p scan on primary device */ | |
754 | ret = brcmf_fil_bsscfg_data_set(vif->ifp, "p2p_scan", memblk, memsize); | |
755 | if (!ret) | |
756 | set_bit(BRCMF_SCAN_STATUS_BUSY, &p2p->cfg->scan_status); | |
757 | exit: | |
758 | kfree(memblk); | |
759 | return ret; | |
760 | } | |
761 | ||
762 | /** | |
763 | * brcmf_p2p_run_escan() - escan callback for peer-to-peer. | |
764 | * | |
765 | * @cfg: driver private data for cfg80211 interface. | |
57636058 | 766 | * @ifp: interface control. |
9f440b7b | 767 | * @request: scan request from cfg80211. |
9f440b7b AS |
768 | * |
769 | * Determines the P2P discovery state based to scan request parameters and | |
770 | * validates the channels in the request. | |
771 | */ | |
772 | static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg, | |
a0f472ac | 773 | struct brcmf_if *ifp, |
c4958106 | 774 | struct cfg80211_scan_request *request) |
9f440b7b AS |
775 | { |
776 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
dcb1471b | 777 | struct brcmf_pub *drvr = cfg->pub; |
9f440b7b AS |
778 | s32 err = 0; |
779 | s32 search_state = WL_P2P_DISC_ST_SCAN; | |
780 | struct brcmf_cfg80211_vif *vif; | |
781 | struct net_device *dev = NULL; | |
782 | int i, num_nodfs = 0; | |
783 | u16 *chanspecs; | |
784 | ||
785 | brcmf_dbg(TRACE, "enter\n"); | |
786 | ||
787 | if (!request) { | |
788 | err = -EINVAL; | |
789 | goto exit; | |
790 | } | |
791 | ||
792 | if (request->n_channels) { | |
793 | chanspecs = kcalloc(request->n_channels, sizeof(*chanspecs), | |
794 | GFP_KERNEL); | |
795 | if (!chanspecs) { | |
796 | err = -ENOMEM; | |
797 | goto exit; | |
798 | } | |
799 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; | |
800 | if (vif) | |
801 | dev = vif->wdev.netdev; | |
802 | if (request->n_channels == 3 && | |
803 | request->channels[0]->hw_value == SOCIAL_CHAN_1 && | |
804 | request->channels[1]->hw_value == SOCIAL_CHAN_2 && | |
805 | request->channels[2]->hw_value == SOCIAL_CHAN_3) { | |
806 | /* SOCIAL CHANNELS 1, 6, 11 */ | |
807 | search_state = WL_P2P_DISC_ST_SEARCH; | |
808 | brcmf_dbg(INFO, "P2P SEARCH PHASE START\n"); | |
967fe2c8 AS |
809 | } else if (dev != NULL && |
810 | vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { | |
9f440b7b AS |
811 | /* If you are already a GO, then do SEARCH only */ |
812 | brcmf_dbg(INFO, "Already a GO. Do SEARCH Only\n"); | |
813 | search_state = WL_P2P_DISC_ST_SEARCH; | |
814 | } else { | |
815 | brcmf_dbg(INFO, "P2P SCAN STATE START\n"); | |
816 | } | |
817 | ||
818 | /* | |
819 | * no P2P scanning on passive or DFS channels. | |
820 | */ | |
821 | for (i = 0; i < request->n_channels; i++) { | |
822 | struct ieee80211_channel *chan = request->channels[i]; | |
823 | ||
824 | if (chan->flags & (IEEE80211_CHAN_RADAR | | |
8fe02e16 | 825 | IEEE80211_CHAN_NO_IR)) |
9f440b7b AS |
826 | continue; |
827 | ||
83cf17aa FL |
828 | chanspecs[i] = channel_to_chanspec(&p2p->cfg->d11inf, |
829 | chan); | |
9f440b7b AS |
830 | brcmf_dbg(INFO, "%d: chan=%d, channel spec=%x\n", |
831 | num_nodfs, chan->hw_value, chanspecs[i]); | |
832 | num_nodfs++; | |
833 | } | |
834 | err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state, | |
c4958106 | 835 | P2PAPI_BSSCFG_DEVICE); |
3b1bace9 | 836 | kfree(chanspecs); |
9f440b7b AS |
837 | } |
838 | exit: | |
839 | if (err) | |
dcb1471b | 840 | bphy_err(drvr, "error (%d)\n", err); |
9f440b7b AS |
841 | return err; |
842 | } | |
843 | ||
6eda4e2c HM |
844 | |
845 | /** | |
846 | * brcmf_p2p_find_listen_channel() - find listen channel in ie string. | |
847 | * | |
848 | * @ie: string of information elements. | |
849 | * @ie_len: length of string. | |
850 | * | |
851 | * Scan ie for p2p ie and look for attribute 6 channel. If available determine | |
852 | * channel and return it. | |
853 | */ | |
854 | static s32 brcmf_p2p_find_listen_channel(const u8 *ie, u32 ie_len) | |
855 | { | |
856 | u8 channel_ie[5]; | |
857 | s32 listen_channel; | |
858 | s32 err; | |
859 | ||
860 | err = cfg80211_get_p2p_attr(ie, ie_len, | |
861 | IEEE80211_P2P_ATTR_LISTEN_CHANNEL, | |
862 | channel_ie, sizeof(channel_ie)); | |
863 | if (err < 0) | |
864 | return err; | |
865 | ||
866 | /* listen channel subel length format: */ | |
867 | /* 3(country) + 1(op. class) + 1(chan num) */ | |
868 | listen_channel = (s32)channel_ie[3 + 1]; | |
869 | ||
870 | if (listen_channel == SOCIAL_CHAN_1 || | |
871 | listen_channel == SOCIAL_CHAN_2 || | |
872 | listen_channel == SOCIAL_CHAN_3) { | |
873 | brcmf_dbg(INFO, "Found my Listen Channel %d\n", listen_channel); | |
874 | return listen_channel; | |
875 | } | |
876 | ||
877 | return -EPERM; | |
878 | } | |
879 | ||
880 | ||
9f440b7b AS |
881 | /** |
882 | * brcmf_p2p_scan_prep() - prepare scan based on request. | |
883 | * | |
884 | * @wiphy: wiphy device. | |
885 | * @request: scan request from cfg80211. | |
0f8ffe17 | 886 | * @vif: vif on which scan request is to be executed. |
9f440b7b AS |
887 | * |
888 | * Prepare the scan appropriately for type of scan requested. Overrides the | |
889 | * escan .run() callback for peer-to-peer scanning. | |
890 | */ | |
891 | int brcmf_p2p_scan_prep(struct wiphy *wiphy, | |
0f8ffe17 HM |
892 | struct cfg80211_scan_request *request, |
893 | struct brcmf_cfg80211_vif *vif) | |
9f440b7b AS |
894 | { |
895 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
896 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
bd99a301 | 897 | int err; |
9f440b7b AS |
898 | |
899 | if (brcmf_p2p_scan_is_p2p_request(request)) { | |
900 | /* find my listen channel */ | |
6eda4e2c HM |
901 | err = brcmf_p2p_find_listen_channel(request->ie, |
902 | request->ie_len); | |
9f440b7b AS |
903 | if (err < 0) |
904 | return err; | |
905 | ||
6eda4e2c HM |
906 | p2p->afx_hdl.my_listen_chan = err; |
907 | ||
9f440b7b AS |
908 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
909 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
910 | ||
0de8aace | 911 | err = brcmf_p2p_enable_discovery(p2p); |
0f8ffe17 HM |
912 | if (err) |
913 | return err; | |
9f440b7b | 914 | |
0f8ffe17 HM |
915 | /* override .run_escan() callback. */ |
916 | cfg->escan_info.run = brcmf_p2p_run_escan; | |
9f440b7b | 917 | } |
bd99a301 | 918 | return 0; |
9f440b7b AS |
919 | } |
920 | ||
0de8aace | 921 | |
f2058dde HM |
922 | /** |
923 | * brcmf_p2p_discover_listen() - set firmware to discover listen state. | |
924 | * | |
925 | * @p2p: p2p device. | |
6eda4e2c HM |
926 | * @channel: channel nr for discover listen. |
927 | * @duration: time in ms to stay on channel. | |
f2058dde HM |
928 | * |
929 | */ | |
930 | static s32 | |
6eda4e2c | 931 | brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration) |
f2058dde | 932 | { |
dcb1471b | 933 | struct brcmf_pub *drvr = p2p->cfg->pub; |
f2058dde | 934 | struct brcmf_cfg80211_vif *vif; |
83cf17aa | 935 | struct brcmu_chan ch; |
f2058dde | 936 | s32 err = 0; |
f2058dde HM |
937 | |
938 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
939 | if (!vif) { | |
dcb1471b | 940 | bphy_err(drvr, "Discovery is not set, so we have nothing to do\n"); |
f2058dde HM |
941 | err = -EPERM; |
942 | goto exit; | |
943 | } | |
944 | ||
945 | if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status)) { | |
dcb1471b | 946 | bphy_err(drvr, "Previous LISTEN is not completed yet\n"); |
f2058dde HM |
947 | /* WAR: prevent cookie mismatch in wpa_supplicant return OK */ |
948 | goto exit; | |
949 | } | |
950 | ||
83cf17aa FL |
951 | ch.chnum = channel; |
952 | ch.bw = BRCMU_CHAN_BW_20; | |
953 | p2p->cfg->d11inf.encchspec(&ch); | |
f2058dde | 954 | err = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_LISTEN, |
83cf17aa | 955 | ch.chspec, (u16)duration); |
f2058dde HM |
956 | if (!err) { |
957 | set_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status); | |
958 | p2p->remain_on_channel_cookie++; | |
959 | } | |
960 | exit: | |
961 | return err; | |
962 | } | |
963 | ||
964 | ||
0de8aace HM |
965 | /** |
966 | * brcmf_p2p_remain_on_channel() - put device on channel and stay there. | |
967 | * | |
968 | * @wiphy: wiphy device. | |
78211e02 | 969 | * @wdev: wireless device. |
0de8aace HM |
970 | * @channel: channel to stay on. |
971 | * @duration: time in ms to remain on channel. | |
57636058 | 972 | * @cookie: cookie. |
0de8aace HM |
973 | */ |
974 | int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, | |
975 | struct ieee80211_channel *channel, | |
976 | unsigned int duration, u64 *cookie) | |
977 | { | |
978 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
979 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
0de8aace | 980 | s32 err; |
6eda4e2c | 981 | u16 channel_nr; |
0de8aace | 982 | |
6eda4e2c HM |
983 | channel_nr = ieee80211_frequency_to_channel(channel->center_freq); |
984 | brcmf_dbg(TRACE, "Enter, channel: %d, duration ms (%d)\n", channel_nr, | |
0de8aace HM |
985 | duration); |
986 | ||
0de8aace HM |
987 | err = brcmf_p2p_enable_discovery(p2p); |
988 | if (err) | |
989 | goto exit; | |
6eda4e2c | 990 | err = brcmf_p2p_discover_listen(p2p, channel_nr, duration); |
0de8aace HM |
991 | if (err) |
992 | goto exit; | |
993 | ||
f2058dde HM |
994 | memcpy(&p2p->remain_on_channel, channel, sizeof(*channel)); |
995 | *cookie = p2p->remain_on_channel_cookie; | |
1ce3086c | 996 | cfg80211_ready_on_channel(wdev, *cookie, channel, duration, GFP_KERNEL); |
0de8aace HM |
997 | |
998 | exit: | |
0de8aace HM |
999 | return err; |
1000 | } | |
1001 | ||
1002 | ||
1003 | /** | |
1004 | * brcmf_p2p_notify_listen_complete() - p2p listen has completed. | |
1005 | * | |
1006 | * @ifp: interfac control. | |
1007 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1008 | * @data: payload of message. Not used. | |
1009 | * | |
1010 | */ | |
1011 | int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp, | |
1012 | const struct brcmf_event_msg *e, | |
1013 | void *data) | |
1014 | { | |
1015 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1016 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1017 | ||
1018 | brcmf_dbg(TRACE, "Enter\n"); | |
f2058dde | 1019 | if (test_and_clear_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, |
6eda4e2c HM |
1020 | &p2p->status)) { |
1021 | if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1022 | &p2p->status)) { | |
1023 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1024 | &p2p->status); | |
1025 | brcmf_dbg(INFO, "Listen DONE, wake up wait_next_af\n"); | |
1026 | complete(&p2p->wait_next_af); | |
1027 | } | |
1028 | ||
f2058dde HM |
1029 | cfg80211_remain_on_channel_expired(&ifp->vif->wdev, |
1030 | p2p->remain_on_channel_cookie, | |
0de8aace HM |
1031 | &p2p->remain_on_channel, |
1032 | GFP_KERNEL); | |
6eda4e2c | 1033 | } |
0de8aace HM |
1034 | return 0; |
1035 | } | |
1036 | ||
1037 | ||
1038 | /** | |
1039 | * brcmf_p2p_cancel_remain_on_channel() - cancel p2p listen state. | |
1040 | * | |
1041 | * @ifp: interfac control. | |
1042 | * | |
1043 | */ | |
1044 | void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp) | |
1045 | { | |
1046 | if (!ifp) | |
1047 | return; | |
1048 | brcmf_p2p_set_discover_state(ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
1049 | brcmf_p2p_notify_listen_complete(ifp, NULL, NULL); | |
1050 | } | |
1051 | ||
1052 | ||
6eda4e2c HM |
1053 | /** |
1054 | * brcmf_p2p_act_frm_search() - search function for action frame. | |
1055 | * | |
1056 | * @p2p: p2p device. | |
57636058 | 1057 | * @channel: channel on which action frame is to be trasmitted. |
6eda4e2c HM |
1058 | * |
1059 | * search function to reach at common channel to send action frame. When | |
1060 | * channel is 0 then all social channels will be used to send af | |
1061 | */ | |
1062 | static s32 brcmf_p2p_act_frm_search(struct brcmf_p2p_info *p2p, u16 channel) | |
1063 | { | |
dcb1471b | 1064 | struct brcmf_pub *drvr = p2p->cfg->pub; |
6eda4e2c HM |
1065 | s32 err; |
1066 | u32 channel_cnt; | |
1067 | u16 *default_chan_list; | |
1068 | u32 i; | |
83cf17aa | 1069 | struct brcmu_chan ch; |
6eda4e2c HM |
1070 | |
1071 | brcmf_dbg(TRACE, "Enter\n"); | |
1072 | ||
1073 | if (channel) | |
1074 | channel_cnt = AF_PEER_SEARCH_CNT; | |
1075 | else | |
1076 | channel_cnt = SOCIAL_CHAN_CNT; | |
6396bb22 | 1077 | default_chan_list = kcalloc(channel_cnt, sizeof(*default_chan_list), |
6eda4e2c HM |
1078 | GFP_KERNEL); |
1079 | if (default_chan_list == NULL) { | |
dcb1471b | 1080 | bphy_err(drvr, "channel list allocation failed\n"); |
6eda4e2c HM |
1081 | err = -ENOMEM; |
1082 | goto exit; | |
1083 | } | |
83cf17aa | 1084 | ch.bw = BRCMU_CHAN_BW_20; |
6eda4e2c | 1085 | if (channel) { |
83cf17aa FL |
1086 | ch.chnum = channel; |
1087 | p2p->cfg->d11inf.encchspec(&ch); | |
6eda4e2c HM |
1088 | /* insert same channel to the chan_list */ |
1089 | for (i = 0; i < channel_cnt; i++) | |
83cf17aa | 1090 | default_chan_list[i] = ch.chspec; |
6eda4e2c | 1091 | } else { |
83cf17aa FL |
1092 | ch.chnum = SOCIAL_CHAN_1; |
1093 | p2p->cfg->d11inf.encchspec(&ch); | |
1094 | default_chan_list[0] = ch.chspec; | |
1095 | ch.chnum = SOCIAL_CHAN_2; | |
1096 | p2p->cfg->d11inf.encchspec(&ch); | |
1097 | default_chan_list[1] = ch.chspec; | |
1098 | ch.chnum = SOCIAL_CHAN_3; | |
1099 | p2p->cfg->d11inf.encchspec(&ch); | |
1100 | default_chan_list[2] = ch.chspec; | |
6eda4e2c HM |
1101 | } |
1102 | err = brcmf_p2p_escan(p2p, channel_cnt, default_chan_list, | |
c4958106 | 1103 | WL_P2P_DISC_ST_SEARCH, P2PAPI_BSSCFG_DEVICE); |
6eda4e2c HM |
1104 | kfree(default_chan_list); |
1105 | exit: | |
1106 | return err; | |
1107 | } | |
1108 | ||
1109 | ||
1110 | /** | |
1111 | * brcmf_p2p_afx_handler() - afx worker thread. | |
1112 | * | |
1113 | * @work: | |
1114 | * | |
1115 | */ | |
1116 | static void brcmf_p2p_afx_handler(struct work_struct *work) | |
1117 | { | |
1118 | struct afx_hdl *afx_hdl = container_of(work, struct afx_hdl, afx_work); | |
1119 | struct brcmf_p2p_info *p2p = container_of(afx_hdl, | |
1120 | struct brcmf_p2p_info, | |
1121 | afx_hdl); | |
dcb1471b | 1122 | struct brcmf_pub *drvr = p2p->cfg->pub; |
6eda4e2c HM |
1123 | s32 err; |
1124 | ||
1125 | if (!afx_hdl->is_active) | |
1126 | return; | |
1127 | ||
1128 | if (afx_hdl->is_listen && afx_hdl->my_listen_chan) | |
1129 | /* 100ms ~ 300ms */ | |
1130 | err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan, | |
8032bf12 | 1131 | 100 * (1 + get_random_u32_below(3))); |
6eda4e2c HM |
1132 | else |
1133 | err = brcmf_p2p_act_frm_search(p2p, afx_hdl->peer_listen_chan); | |
1134 | ||
1135 | if (err) { | |
dcb1471b | 1136 | bphy_err(drvr, "ERROR occurred! value is (%d)\n", err); |
6eda4e2c HM |
1137 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, |
1138 | &p2p->status)) | |
1139 | complete(&afx_hdl->act_frm_scan); | |
1140 | } | |
1141 | } | |
1142 | ||
1143 | ||
1144 | /** | |
1145 | * brcmf_p2p_af_searching_channel() - search channel. | |
1146 | * | |
1147 | * @p2p: p2p device info struct. | |
1148 | * | |
1149 | */ | |
1150 | static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p) | |
1151 | { | |
1152 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
1153 | struct brcmf_cfg80211_vif *pri_vif; | |
6eda4e2c HM |
1154 | s32 retry; |
1155 | ||
1156 | brcmf_dbg(TRACE, "Enter\n"); | |
1157 | ||
1158 | pri_vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
1159 | ||
16735d02 | 1160 | reinit_completion(&afx_hdl->act_frm_scan); |
6eda4e2c HM |
1161 | set_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status); |
1162 | afx_hdl->is_active = true; | |
1163 | afx_hdl->peer_chan = P2P_INVALID_CHANNEL; | |
1164 | ||
1165 | /* Loop to wait until we find a peer's channel or the | |
1166 | * pending action frame tx is cancelled. | |
1167 | */ | |
1168 | retry = 0; | |
6eda4e2c HM |
1169 | while ((retry < P2P_CHANNEL_SYNC_RETRY) && |
1170 | (afx_hdl->peer_chan == P2P_INVALID_CHANNEL)) { | |
1171 | afx_hdl->is_listen = false; | |
1172 | brcmf_dbg(TRACE, "Scheduling action frame for sending.. (%d)\n", | |
1173 | retry); | |
1174 | /* search peer on peer's listen channel */ | |
1175 | schedule_work(&afx_hdl->afx_work); | |
edb6d688 CHH |
1176 | wait_for_completion_timeout(&afx_hdl->act_frm_scan, |
1177 | P2P_AF_FRM_SCAN_MAX_WAIT); | |
6eda4e2c HM |
1178 | if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) || |
1179 | (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1180 | &p2p->status))) | |
1181 | break; | |
1182 | ||
1183 | if (afx_hdl->my_listen_chan) { | |
1184 | brcmf_dbg(TRACE, "Scheduling listen peer, channel=%d\n", | |
1185 | afx_hdl->my_listen_chan); | |
1186 | /* listen on my listen channel */ | |
1187 | afx_hdl->is_listen = true; | |
1188 | schedule_work(&afx_hdl->afx_work); | |
1189 | wait_for_completion_timeout(&afx_hdl->act_frm_scan, | |
edb6d688 | 1190 | P2P_AF_FRM_SCAN_MAX_WAIT); |
6eda4e2c HM |
1191 | } |
1192 | if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) || | |
1193 | (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1194 | &p2p->status))) | |
1195 | break; | |
1196 | retry++; | |
1197 | ||
1198 | /* if sta is connected or connecting, sleep for a while before | |
1199 | * retry af tx or finding a peer | |
1200 | */ | |
1201 | if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &pri_vif->sme_state) || | |
1202 | test_bit(BRCMF_VIF_STATUS_CONNECTING, &pri_vif->sme_state)) | |
1203 | msleep(P2P_DEFAULT_SLEEP_TIME_VSDB); | |
1204 | } | |
1205 | ||
1206 | brcmf_dbg(TRACE, "Completed search/listen peer_chan=%d\n", | |
1207 | afx_hdl->peer_chan); | |
1208 | afx_hdl->is_active = false; | |
1209 | ||
1210 | clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status); | |
1211 | ||
1212 | return afx_hdl->peer_chan; | |
1213 | } | |
1214 | ||
1215 | ||
1216 | /** | |
1217 | * brcmf_p2p_scan_finding_common_channel() - was escan used for finding channel | |
1218 | * | |
1219 | * @cfg: common configuration struct. | |
1220 | * @bi: bss info struct, result from scan. | |
1221 | * | |
1222 | */ | |
1223 | bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg, | |
1224 | struct brcmf_bss_info_le *bi) | |
1225 | ||
1226 | { | |
1227 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1228 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
83cf17aa | 1229 | struct brcmu_chan ch; |
6eda4e2c HM |
1230 | u8 *ie; |
1231 | s32 err; | |
1232 | u8 p2p_dev_addr[ETH_ALEN]; | |
1233 | ||
1234 | if (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status)) | |
1235 | return false; | |
1236 | ||
1237 | if (bi == NULL) { | |
1238 | brcmf_dbg(TRACE, "ACTION FRAME SCAN Done\n"); | |
1239 | if (afx_hdl->peer_chan == P2P_INVALID_CHANNEL) | |
1240 | complete(&afx_hdl->act_frm_scan); | |
1241 | return true; | |
1242 | } | |
1243 | ||
1244 | ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); | |
1245 | memset(p2p_dev_addr, 0, sizeof(p2p_dev_addr)); | |
1246 | err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length), | |
1247 | IEEE80211_P2P_ATTR_DEVICE_INFO, | |
1248 | p2p_dev_addr, sizeof(p2p_dev_addr)); | |
1249 | if (err < 0) | |
1250 | err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length), | |
1251 | IEEE80211_P2P_ATTR_DEVICE_ID, | |
1252 | p2p_dev_addr, sizeof(p2p_dev_addr)); | |
1253 | if ((err >= 0) && | |
692e5167 | 1254 | (ether_addr_equal(p2p_dev_addr, afx_hdl->tx_dst_addr))) { |
83cf17aa FL |
1255 | if (!bi->ctl_ch) { |
1256 | ch.chspec = le16_to_cpu(bi->chanspec); | |
1257 | cfg->d11inf.decchspec(&ch); | |
4712d88a | 1258 | bi->ctl_ch = ch.control_ch_num; |
83cf17aa FL |
1259 | } |
1260 | afx_hdl->peer_chan = bi->ctl_ch; | |
6eda4e2c HM |
1261 | brcmf_dbg(TRACE, "ACTION FRAME SCAN : Peer %pM found, channel : %d\n", |
1262 | afx_hdl->tx_dst_addr, afx_hdl->peer_chan); | |
1263 | complete(&afx_hdl->act_frm_scan); | |
1264 | } | |
1265 | return true; | |
1266 | } | |
1267 | ||
30fb1b27 RK |
1268 | /** |
1269 | * brcmf_p2p_abort_action_frame() - abort action frame. | |
1270 | * | |
1271 | * @cfg: common configuration struct. | |
1272 | * | |
1273 | */ | |
1274 | static s32 brcmf_p2p_abort_action_frame(struct brcmf_cfg80211_info *cfg) | |
1275 | { | |
1276 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1277 | struct brcmf_cfg80211_vif *vif; | |
1278 | s32 err; | |
1279 | s32 int_val = 1; | |
1280 | ||
1281 | brcmf_dbg(TRACE, "Enter\n"); | |
1282 | ||
1283 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1284 | err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe_abort", &int_val, | |
1285 | sizeof(s32)); | |
1286 | if (err) | |
1287 | brcmf_err(" aborting action frame has failed (%d)\n", err); | |
1288 | ||
1289 | return err; | |
1290 | } | |
1291 | ||
6eda4e2c HM |
1292 | /** |
1293 | * brcmf_p2p_stop_wait_next_action_frame() - finish scan if af tx complete. | |
1294 | * | |
1295 | * @cfg: common configuration struct. | |
1296 | * | |
1297 | */ | |
1298 | static void | |
1299 | brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg) | |
1300 | { | |
1301 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2aec2c9d | 1302 | struct brcmf_if *ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
30fb1b27 | 1303 | s32 err; |
6eda4e2c HM |
1304 | |
1305 | if (test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status) && | |
1306 | (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status) || | |
1307 | test_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status))) { | |
1308 | brcmf_dbg(TRACE, "*** Wake UP ** abort actframe iovar\n"); | |
1309 | /* if channel is not zero, "actfame" uses off channel scan. | |
1310 | * So abort scan for off channel completion. | |
1311 | */ | |
30fb1b27 RK |
1312 | if (p2p->af_sent_channel) { |
1313 | /* abort actframe using actframe_abort or abort scan */ | |
1314 | err = brcmf_p2p_abort_action_frame(cfg); | |
1315 | if (err) | |
1316 | brcmf_notify_escan_complete(cfg, ifp, true, | |
1317 | true); | |
1318 | } | |
6eda4e2c HM |
1319 | } else if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, |
1320 | &p2p->status)) { | |
1321 | brcmf_dbg(TRACE, "*** Wake UP ** abort listen for next af frame\n"); | |
1322 | /* So abort scan to cancel listen */ | |
a0f472ac | 1323 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1324 | } |
1325 | } | |
1326 | ||
1327 | ||
1328 | /** | |
1329 | * brcmf_p2p_gon_req_collision() - Check if go negotiaton collission | |
1330 | * | |
1331 | * @p2p: p2p device info struct. | |
57636058 | 1332 | * @mac: MAC address. |
6eda4e2c HM |
1333 | * |
1334 | * return true if recevied action frame is to be dropped. | |
1335 | */ | |
1336 | static bool | |
1337 | brcmf_p2p_gon_req_collision(struct brcmf_p2p_info *p2p, u8 *mac) | |
1338 | { | |
1339 | struct brcmf_cfg80211_info *cfg = p2p->cfg; | |
1340 | struct brcmf_if *ifp; | |
1341 | ||
1342 | brcmf_dbg(TRACE, "Enter\n"); | |
1343 | ||
1344 | if (!test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) || | |
1345 | !p2p->gon_req_action) | |
1346 | return false; | |
1347 | ||
1348 | brcmf_dbg(TRACE, "GO Negotiation Request COLLISION !!!\n"); | |
1349 | /* if sa(peer) addr is less than da(my) addr, then this device | |
1350 | * process peer's gon request and block to send gon req. | |
1351 | * if not (sa addr > da addr), | |
1352 | * this device will process gon request and drop gon req of peer. | |
1353 | */ | |
1354 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp; | |
1355 | if (memcmp(mac, ifp->mac_addr, ETH_ALEN) < 0) { | |
1356 | brcmf_dbg(INFO, "Block transmit gon req !!!\n"); | |
1357 | p2p->block_gon_req_tx = true; | |
1358 | /* if we are finding a common channel for sending af, | |
1359 | * do not scan more to block to send current gon req | |
1360 | */ | |
1361 | if (test_and_clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1362 | &p2p->status)) | |
1363 | complete(&p2p->afx_hdl.act_frm_scan); | |
1364 | if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1365 | &p2p->status)) | |
1366 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1367 | return false; | |
1368 | } | |
1369 | ||
1370 | /* drop gon request of peer to process gon request by this device. */ | |
1371 | brcmf_dbg(INFO, "Drop received gon req !!!\n"); | |
1372 | ||
1373 | return true; | |
1374 | } | |
1375 | ||
1376 | ||
e6da3400 HM |
1377 | /** |
1378 | * brcmf_p2p_notify_action_frame_rx() - received action frame. | |
1379 | * | |
1380 | * @ifp: interfac control. | |
1381 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1382 | * @data: payload of message, containing action frame data. | |
1383 | * | |
1384 | */ | |
1385 | int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp, | |
1386 | const struct brcmf_event_msg *e, | |
1387 | void *data) | |
1388 | { | |
dcb1471b RM |
1389 | struct brcmf_pub *drvr = ifp->drvr; |
1390 | struct brcmf_cfg80211_info *cfg = drvr->config; | |
6eda4e2c HM |
1391 | struct brcmf_p2p_info *p2p = &cfg->p2p; |
1392 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
e6da3400 HM |
1393 | struct wireless_dev *wdev; |
1394 | u32 mgmt_frame_len = e->datalen - sizeof(struct brcmf_rx_mgmt_data); | |
1395 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
6eda4e2c HM |
1396 | u8 *frame = (u8 *)(rxframe + 1); |
1397 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1398 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
83cf17aa | 1399 | struct brcmu_chan ch; |
e6da3400 | 1400 | struct ieee80211_mgmt *mgmt_frame; |
e6da3400 HM |
1401 | s32 freq; |
1402 | u16 mgmt_type; | |
6eda4e2c | 1403 | u8 action; |
e6da3400 | 1404 | |
0aedbcaf HM |
1405 | if (e->datalen < sizeof(*rxframe)) { |
1406 | brcmf_dbg(SCAN, "Event data to small. Ignore\n"); | |
1407 | return 0; | |
1408 | } | |
1409 | ||
83cf17aa FL |
1410 | ch.chspec = be16_to_cpu(rxframe->chanspec); |
1411 | cfg->d11inf.decchspec(&ch); | |
e6da3400 HM |
1412 | /* Check if wpa_supplicant has registered for this frame */ |
1413 | brcmf_dbg(INFO, "ifp->vif->mgmt_rx_reg %04x\n", ifp->vif->mgmt_rx_reg); | |
1414 | mgmt_type = (IEEE80211_STYPE_ACTION & IEEE80211_FCTL_STYPE) >> 4; | |
1415 | if ((ifp->vif->mgmt_rx_reg & BIT(mgmt_type)) == 0) | |
1416 | return 0; | |
1417 | ||
6eda4e2c HM |
1418 | brcmf_p2p_print_actframe(false, frame, mgmt_frame_len); |
1419 | ||
1420 | action = P2P_PAF_SUBTYPE_INVALID; | |
1421 | if (brcmf_p2p_is_pub_action(frame, mgmt_frame_len)) { | |
1422 | act_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
1423 | action = act_frm->subtype; | |
1424 | if ((action == P2P_PAF_GON_REQ) && | |
1425 | (brcmf_p2p_gon_req_collision(p2p, (u8 *)e->addr))) { | |
1426 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, | |
1427 | &p2p->status) && | |
692e5167 | 1428 | (ether_addr_equal(afx_hdl->tx_dst_addr, e->addr))) { |
4712d88a | 1429 | afx_hdl->peer_chan = ch.control_ch_num; |
6eda4e2c HM |
1430 | brcmf_dbg(INFO, "GON request: Peer found, channel=%d\n", |
1431 | afx_hdl->peer_chan); | |
1432 | complete(&afx_hdl->act_frm_scan); | |
1433 | } | |
1434 | return 0; | |
1435 | } | |
1436 | /* After complete GO Negotiation, roll back to mpc mode */ | |
1437 | if ((action == P2P_PAF_GON_CONF) || | |
1438 | (action == P2P_PAF_PROVDIS_RSP)) | |
f96aa07e | 1439 | brcmf_set_mpc(ifp, 1); |
6eda4e2c HM |
1440 | if (action == P2P_PAF_GON_CONF) { |
1441 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1442 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1443 | } | |
1444 | } else if (brcmf_p2p_is_gas_action(frame, mgmt_frame_len)) { | |
1445 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
1446 | action = sd_act_frm->action; | |
1447 | } | |
1448 | ||
1449 | if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) && | |
1450 | (p2p->next_af_subtype == action)) { | |
1451 | brcmf_dbg(TRACE, "We got a right next frame! (%d)\n", action); | |
1452 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, | |
1453 | &p2p->status); | |
1454 | /* Stop waiting for next AF. */ | |
1455 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1456 | } | |
e6da3400 HM |
1457 | |
1458 | mgmt_frame = kzalloc(offsetof(struct ieee80211_mgmt, u) + | |
1459 | mgmt_frame_len, GFP_KERNEL); | |
1460 | if (!mgmt_frame) { | |
dcb1471b | 1461 | bphy_err(drvr, "No memory available for action frame\n"); |
e6da3400 HM |
1462 | return -ENOMEM; |
1463 | } | |
1464 | memcpy(mgmt_frame->da, ifp->mac_addr, ETH_ALEN); | |
6eda4e2c HM |
1465 | brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mgmt_frame->bssid, |
1466 | ETH_ALEN); | |
e6da3400 HM |
1467 | memcpy(mgmt_frame->sa, e->addr, ETH_ALEN); |
1468 | mgmt_frame->frame_control = cpu_to_le16(IEEE80211_STYPE_ACTION); | |
6eda4e2c | 1469 | memcpy(&mgmt_frame->u, frame, mgmt_frame_len); |
e6da3400 HM |
1470 | mgmt_frame_len += offsetof(struct ieee80211_mgmt, u); |
1471 | ||
4712d88a | 1472 | freq = ieee80211_channel_to_frequency(ch.control_ch_num, |
83cf17aa | 1473 | ch.band == BRCMU_CHAN_BAND_2G ? |
57fbcce3 JB |
1474 | NL80211_BAND_2GHZ : |
1475 | NL80211_BAND_5GHZ); | |
5b57af6e AS |
1476 | |
1477 | wdev = &ifp->vif->wdev; | |
970fdfa8 | 1478 | cfg80211_rx_mgmt(wdev, freq, 0, (u8 *)mgmt_frame, mgmt_frame_len, 0); |
e6da3400 HM |
1479 | |
1480 | kfree(mgmt_frame); | |
1481 | return 0; | |
1482 | } | |
1483 | ||
1484 | ||
18e2f61d HM |
1485 | /** |
1486 | * brcmf_p2p_notify_action_tx_complete() - transmit action frame complete | |
1487 | * | |
1488 | * @ifp: interfac control. | |
1489 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1490 | * @data: not used. | |
1491 | * | |
1492 | */ | |
1493 | int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp, | |
1494 | const struct brcmf_event_msg *e, | |
1495 | void *data) | |
1496 | { | |
1497 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1498 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1499 | ||
6eda4e2c HM |
1500 | brcmf_dbg(INFO, "Enter: event %s, status=%d\n", |
1501 | e->event_code == BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE ? | |
1502 | "ACTION_FRAME_OFF_CHAN_COMPLETE" : "ACTION_FRAME_COMPLETE", | |
1503 | e->status); | |
18e2f61d | 1504 | |
6eda4e2c HM |
1505 | if (!test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status)) |
1506 | return 0; | |
1507 | ||
1508 | if (e->event_code == BRCMF_E_ACTION_FRAME_COMPLETE) { | |
fbf07000 | 1509 | if (e->status == BRCMF_E_STATUS_SUCCESS) { |
6eda4e2c HM |
1510 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, |
1511 | &p2p->status); | |
fbf07000 CHH |
1512 | if (!p2p->wait_for_offchan_complete) |
1513 | complete(&p2p->send_af_done); | |
1514 | } else { | |
6eda4e2c HM |
1515 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); |
1516 | /* If there is no ack, we don't need to wait for | |
1517 | * WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE event | |
1518 | */ | |
1519 | brcmf_p2p_stop_wait_next_action_frame(cfg); | |
1520 | } | |
18e2f61d | 1521 | |
6eda4e2c HM |
1522 | } else { |
1523 | complete(&p2p->send_af_done); | |
1524 | } | |
18e2f61d HM |
1525 | return 0; |
1526 | } | |
1527 | ||
1528 | ||
1529 | /** | |
1530 | * brcmf_p2p_tx_action_frame() - send action frame over fil. | |
1531 | * | |
1532 | * @p2p: p2p info struct for vif. | |
1533 | * @af_params: action frame data/info. | |
1534 | * | |
1535 | * Send an action frame immediately without doing channel synchronization. | |
1536 | * | |
1537 | * This function waits for a completion event before returning. | |
1538 | * The WLC_E_ACTION_FRAME_COMPLETE event will be received when the action | |
1539 | * frame is transmitted. | |
1540 | */ | |
1541 | static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p, | |
1542 | struct brcmf_fil_af_params_le *af_params) | |
1543 | { | |
dcb1471b | 1544 | struct brcmf_pub *drvr = p2p->cfg->pub; |
18e2f61d | 1545 | struct brcmf_cfg80211_vif *vif; |
d524d5ce | 1546 | struct brcmf_p2p_action_frame *p2p_af; |
18e2f61d | 1547 | s32 err = 0; |
18e2f61d HM |
1548 | |
1549 | brcmf_dbg(TRACE, "Enter\n"); | |
1550 | ||
16735d02 | 1551 | reinit_completion(&p2p->send_af_done); |
18e2f61d HM |
1552 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); |
1553 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1554 | ||
d524d5ce MM |
1555 | /* check if it is a p2p_presence response */ |
1556 | p2p_af = (struct brcmf_p2p_action_frame *)af_params->action_frame.data; | |
1557 | if (p2p_af->subtype == P2P_AF_PRESENCE_RSP) | |
1558 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; | |
1559 | else | |
1560 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1561 | ||
18e2f61d HM |
1562 | err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe", af_params, |
1563 | sizeof(*af_params)); | |
1564 | if (err) { | |
dcb1471b | 1565 | bphy_err(drvr, " sending action frame has failed\n"); |
18e2f61d HM |
1566 | goto exit; |
1567 | } | |
1568 | ||
6eda4e2c HM |
1569 | p2p->af_sent_channel = le32_to_cpu(af_params->channel); |
1570 | p2p->af_tx_sent_jiffies = jiffies; | |
1571 | ||
fbf07000 CHH |
1572 | if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status) && |
1573 | p2p->af_sent_channel == | |
1574 | ieee80211_frequency_to_channel(p2p->remain_on_channel.center_freq)) | |
1575 | p2p->wait_for_offchan_complete = false; | |
1576 | else | |
1577 | p2p->wait_for_offchan_complete = true; | |
1578 | ||
1579 | brcmf_dbg(TRACE, "Waiting for %s tx completion event\n", | |
1580 | (p2p->wait_for_offchan_complete) ? | |
1581 | "off-channel" : "on-channel"); | |
1582 | ||
2de64ca7 | 1583 | wait_for_completion_timeout(&p2p->send_af_done, P2P_AF_MAX_WAIT_TIME); |
18e2f61d HM |
1584 | |
1585 | if (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status)) { | |
1586 | brcmf_dbg(TRACE, "TX action frame operation is success\n"); | |
1587 | } else { | |
1588 | err = -EIO; | |
1589 | brcmf_dbg(TRACE, "TX action frame operation has failed\n"); | |
1590 | } | |
1591 | /* clear status bit for action tx */ | |
1592 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); | |
1593 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1594 | ||
1595 | exit: | |
1596 | return err; | |
1597 | } | |
1598 | ||
1599 | ||
1600 | /** | |
1601 | * brcmf_p2p_pub_af_tx() - public action frame tx routine. | |
1602 | * | |
1603 | * @cfg: driver private data for cfg80211 interface. | |
1604 | * @af_params: action frame data/info. | |
1605 | * @config_af_params: configuration data for action frame. | |
1606 | * | |
1607 | * routine which transmits ation frame public type. | |
1608 | */ | |
1609 | static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg, | |
1610 | struct brcmf_fil_af_params_le *af_params, | |
1611 | struct brcmf_config_af_params *config_af_params) | |
1612 | { | |
1613 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
dcb1471b | 1614 | struct brcmf_pub *drvr = cfg->pub; |
18e2f61d HM |
1615 | struct brcmf_fil_action_frame_le *action_frame; |
1616 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1617 | s32 err = 0; | |
6eda4e2c | 1618 | u16 ie_len; |
18e2f61d HM |
1619 | |
1620 | action_frame = &af_params->action_frame; | |
1621 | act_frm = (struct brcmf_p2p_pub_act_frame *)(action_frame->data); | |
1622 | ||
6eda4e2c HM |
1623 | config_af_params->extra_listen = true; |
1624 | ||
18e2f61d HM |
1625 | switch (act_frm->subtype) { |
1626 | case P2P_PAF_GON_REQ: | |
1627 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status set\n"); | |
1628 | set_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1629 | config_af_params->mpc_onoff = 0; | |
6eda4e2c | 1630 | config_af_params->search_channel = true; |
18e2f61d | 1631 | p2p->next_af_subtype = act_frm->subtype + 1; |
6eda4e2c | 1632 | p2p->gon_req_action = true; |
18e2f61d HM |
1633 | /* increase dwell time to wait for RESP frame */ |
1634 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1635 | break; | |
1636 | case P2P_PAF_GON_RSP: | |
1637 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1638 | /* increase dwell time to wait for CONF frame */ | |
1639 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1640 | break; | |
1641 | case P2P_PAF_GON_CONF: | |
1642 | /* If we reached till GO Neg confirmation reset the filter */ | |
1643 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1644 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1645 | /* turn on mpc again if go nego is done */ | |
1646 | config_af_params->mpc_onoff = 1; | |
1647 | /* minimize dwell time */ | |
1648 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1649 | config_af_params->extra_listen = false; |
18e2f61d HM |
1650 | break; |
1651 | case P2P_PAF_INVITE_REQ: | |
6eda4e2c | 1652 | config_af_params->search_channel = true; |
18e2f61d HM |
1653 | p2p->next_af_subtype = act_frm->subtype + 1; |
1654 | /* increase dwell time */ | |
1655 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1656 | break; | |
1657 | case P2P_PAF_INVITE_RSP: | |
1658 | /* minimize dwell time */ | |
1659 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1660 | config_af_params->extra_listen = false; |
18e2f61d HM |
1661 | break; |
1662 | case P2P_PAF_DEVDIS_REQ: | |
6eda4e2c | 1663 | config_af_params->search_channel = true; |
18e2f61d HM |
1664 | p2p->next_af_subtype = act_frm->subtype + 1; |
1665 | /* maximize dwell time to wait for RESP frame */ | |
1666 | af_params->dwell_time = cpu_to_le32(P2P_AF_LONG_DWELL_TIME); | |
1667 | break; | |
1668 | case P2P_PAF_DEVDIS_RSP: | |
1669 | /* minimize dwell time */ | |
1670 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
6eda4e2c | 1671 | config_af_params->extra_listen = false; |
18e2f61d HM |
1672 | break; |
1673 | case P2P_PAF_PROVDIS_REQ: | |
6eda4e2c HM |
1674 | ie_len = le16_to_cpu(action_frame->len) - |
1675 | offsetof(struct brcmf_p2p_pub_act_frame, elts); | |
1676 | if (cfg80211_get_p2p_attr(&act_frm->elts[0], ie_len, | |
1677 | IEEE80211_P2P_ATTR_GROUP_ID, | |
1678 | NULL, 0) < 0) | |
1679 | config_af_params->search_channel = true; | |
18e2f61d HM |
1680 | config_af_params->mpc_onoff = 0; |
1681 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1682 | /* increase dwell time to wait for RESP frame */ | |
1683 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1684 | break; | |
1685 | case P2P_PAF_PROVDIS_RSP: | |
1686 | /* wpa_supplicant send go nego req right after prov disc */ | |
1687 | p2p->next_af_subtype = P2P_PAF_GON_REQ; | |
1688 | /* increase dwell time to MED level */ | |
1689 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
6eda4e2c | 1690 | config_af_params->extra_listen = false; |
18e2f61d HM |
1691 | break; |
1692 | default: | |
dcb1471b RM |
1693 | bphy_err(drvr, "Unknown p2p pub act frame subtype: %d\n", |
1694 | act_frm->subtype); | |
18e2f61d HM |
1695 | err = -EINVAL; |
1696 | } | |
1697 | return err; | |
1698 | } | |
1699 | ||
ad96bc27 | 1700 | static bool brcmf_p2p_check_dwell_overflow(u32 requested_dwell, |
9c29da3f JC |
1701 | unsigned long dwell_jiffies) |
1702 | { | |
1703 | if ((requested_dwell & CUSTOM_RETRY_MASK) && | |
1704 | (jiffies_to_msecs(jiffies - dwell_jiffies) > | |
1705 | (requested_dwell & ~CUSTOM_RETRY_MASK))) { | |
1706 | brcmf_err("Action frame TX retry time over dwell time!\n"); | |
1707 | return true; | |
1708 | } | |
1709 | return false; | |
1710 | } | |
18e2f61d HM |
1711 | /** |
1712 | * brcmf_p2p_send_action_frame() - send action frame . | |
1713 | * | |
1714 | * @cfg: driver private data for cfg80211 interface. | |
1715 | * @ndev: net device to transmit on. | |
1716 | * @af_params: configuration data for action frame. | |
1717 | */ | |
1718 | bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg, | |
1719 | struct net_device *ndev, | |
1720 | struct brcmf_fil_af_params_le *af_params) | |
1721 | { | |
1722 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
a0f472ac | 1723 | struct brcmf_if *ifp = netdev_priv(ndev); |
18e2f61d HM |
1724 | struct brcmf_fil_action_frame_le *action_frame; |
1725 | struct brcmf_config_af_params config_af_params; | |
6eda4e2c | 1726 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; |
dcb1471b | 1727 | struct brcmf_pub *drvr = cfg->pub; |
18e2f61d HM |
1728 | u16 action_frame_len; |
1729 | bool ack = false; | |
1730 | u8 category; | |
1731 | u8 action; | |
1732 | s32 tx_retry; | |
6eda4e2c HM |
1733 | s32 extra_listen_time; |
1734 | uint delta_ms; | |
9c29da3f JC |
1735 | unsigned long dwell_jiffies = 0; |
1736 | bool dwell_overflow = false; | |
1737 | ||
ad96bc27 | 1738 | u32 requested_dwell = le32_to_cpu(af_params->dwell_time); |
18e2f61d HM |
1739 | action_frame = &af_params->action_frame; |
1740 | action_frame_len = le16_to_cpu(action_frame->len); | |
1741 | ||
1742 | brcmf_p2p_print_actframe(true, action_frame->data, action_frame_len); | |
1743 | ||
1744 | /* Add the default dwell time. Dwell time to stay off-channel */ | |
1745 | /* to wait for a response action frame after transmitting an */ | |
1746 | /* GO Negotiation action frame */ | |
1747 | af_params->dwell_time = cpu_to_le32(P2P_AF_DWELL_TIME); | |
1748 | ||
1749 | category = action_frame->data[DOT11_ACTION_CAT_OFF]; | |
1750 | action = action_frame->data[DOT11_ACTION_ACT_OFF]; | |
1751 | ||
1752 | /* initialize variables */ | |
1753 | p2p->next_af_subtype = P2P_PAF_SUBTYPE_INVALID; | |
6eda4e2c | 1754 | p2p->gon_req_action = false; |
18e2f61d HM |
1755 | |
1756 | /* config parameters */ | |
18e2f61d | 1757 | config_af_params.mpc_onoff = -1; |
6eda4e2c HM |
1758 | config_af_params.search_channel = false; |
1759 | config_af_params.extra_listen = false; | |
18e2f61d HM |
1760 | |
1761 | if (brcmf_p2p_is_pub_action(action_frame->data, action_frame_len)) { | |
1762 | /* p2p public action frame process */ | |
1763 | if (brcmf_p2p_pub_af_tx(cfg, af_params, &config_af_params)) { | |
1764 | /* Just send unknown subtype frame with */ | |
1765 | /* default parameters. */ | |
dcb1471b | 1766 | bphy_err(drvr, "P2P Public action frame, unknown subtype.\n"); |
18e2f61d HM |
1767 | } |
1768 | } else if (brcmf_p2p_is_gas_action(action_frame->data, | |
1769 | action_frame_len)) { | |
1770 | /* service discovery process */ | |
1771 | if (action == P2PSD_ACTION_ID_GAS_IREQ || | |
1772 | action == P2PSD_ACTION_ID_GAS_CREQ) { | |
6eda4e2c HM |
1773 | /* configure service discovery query frame */ |
1774 | config_af_params.search_channel = true; | |
1775 | ||
18e2f61d HM |
1776 | /* save next af suptype to cancel */ |
1777 | /* remaining dwell time */ | |
1778 | p2p->next_af_subtype = action + 1; | |
1779 | ||
1780 | af_params->dwell_time = | |
1781 | cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1782 | } else if (action == P2PSD_ACTION_ID_GAS_IRESP || | |
1783 | action == P2PSD_ACTION_ID_GAS_CRESP) { | |
1784 | /* configure service discovery response frame */ | |
1785 | af_params->dwell_time = | |
1786 | cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
1787 | } else { | |
dcb1471b | 1788 | bphy_err(drvr, "Unknown action type: %d\n", action); |
18e2f61d HM |
1789 | goto exit; |
1790 | } | |
1791 | } else if (brcmf_p2p_is_p2p_action(action_frame->data, | |
1792 | action_frame_len)) { | |
1793 | /* do not configure anything. it will be */ | |
1794 | /* sent with a default configuration */ | |
1795 | } else { | |
dcb1471b RM |
1796 | bphy_err(drvr, "Unknown Frame: category 0x%x, action 0x%x\n", |
1797 | category, action); | |
18e2f61d HM |
1798 | return false; |
1799 | } | |
1800 | ||
6eda4e2c HM |
1801 | /* if connecting on primary iface, sleep for a while before sending |
1802 | * af tx for VSDB | |
1803 | */ | |
1804 | if (test_bit(BRCMF_VIF_STATUS_CONNECTING, | |
1805 | &p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->sme_state)) | |
1806 | msleep(50); | |
1807 | ||
18e2f61d HM |
1808 | /* if scan is ongoing, abort current scan. */ |
1809 | if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) | |
1810 | brcmf_abort_scanning(cfg); | |
1811 | ||
6eda4e2c HM |
1812 | memcpy(afx_hdl->tx_dst_addr, action_frame->da, ETH_ALEN); |
1813 | ||
18e2f61d HM |
1814 | /* To make sure to send successfully action frame, turn off mpc */ |
1815 | if (config_af_params.mpc_onoff == 0) | |
a0f472ac | 1816 | brcmf_set_mpc(ifp, 0); |
18e2f61d | 1817 | |
6eda4e2c HM |
1818 | /* set status and destination address before sending af */ |
1819 | if (p2p->next_af_subtype != P2P_PAF_SUBTYPE_INVALID) { | |
1820 | /* set status to cancel the remained dwell time in rx process */ | |
1821 | set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status); | |
1822 | } | |
1823 | ||
1824 | p2p->af_sent_channel = 0; | |
1825 | set_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status); | |
1826 | /* validate channel and p2p ies */ | |
1827 | if (config_af_params.search_channel && | |
1828 | IS_P2P_SOCIAL_CHANNEL(le32_to_cpu(af_params->channel)) && | |
1829 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->saved_ie.probe_req_ie_len) { | |
1830 | afx_hdl = &p2p->afx_hdl; | |
1831 | afx_hdl->peer_listen_chan = le32_to_cpu(af_params->channel); | |
1832 | ||
1833 | if (brcmf_p2p_af_searching_channel(p2p) == | |
1834 | P2P_INVALID_CHANNEL) { | |
dcb1471b | 1835 | bphy_err(drvr, "Couldn't find peer's channel.\n"); |
6eda4e2c HM |
1836 | goto exit; |
1837 | } | |
1838 | ||
1839 | /* Abort scan even for VSDB scenarios. Scan gets aborted in | |
1840 | * firmware but after the check of piggyback algorithm. To take | |
1841 | * care of current piggback algo, lets abort the scan here | |
1842 | * itself. | |
1843 | */ | |
a0f472ac | 1844 | brcmf_notify_escan_complete(cfg, ifp, true, true); |
6eda4e2c HM |
1845 | |
1846 | /* update channel */ | |
1847 | af_params->channel = cpu_to_le32(afx_hdl->peer_chan); | |
1848 | } | |
9c29da3f JC |
1849 | dwell_jiffies = jiffies; |
1850 | dwell_overflow = brcmf_p2p_check_dwell_overflow(requested_dwell, | |
1851 | dwell_jiffies); | |
6eda4e2c | 1852 | |
18e2f61d | 1853 | tx_retry = 0; |
6eda4e2c | 1854 | while (!p2p->block_gon_req_tx && |
9c29da3f JC |
1855 | (!ack) && (tx_retry < P2P_AF_TX_MAX_RETRY) && |
1856 | !dwell_overflow) { | |
7f26cedf JL |
1857 | if (af_params->channel) |
1858 | msleep(P2P_AF_RETRY_DELAY_TIME); | |
1859 | ||
18e2f61d HM |
1860 | ack = !brcmf_p2p_tx_action_frame(p2p, af_params); |
1861 | tx_retry++; | |
9c29da3f JC |
1862 | dwell_overflow = brcmf_p2p_check_dwell_overflow(requested_dwell, |
1863 | dwell_jiffies); | |
18e2f61d | 1864 | } |
78a6fb42 | 1865 | if (!ack) { |
dcb1471b RM |
1866 | bphy_err(drvr, "Failed to send Action Frame(retry %d)\n", |
1867 | tx_retry); | |
6eda4e2c HM |
1868 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
1869 | } | |
18e2f61d HM |
1870 | |
1871 | exit: | |
6eda4e2c HM |
1872 | clear_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status); |
1873 | ||
1874 | /* WAR: sometimes dongle does not keep the dwell time of 'actframe'. | |
1875 | * if we coundn't get the next action response frame and dongle does | |
1876 | * not keep the dwell time, go to listen state again to get next action | |
1877 | * response frame. | |
1878 | */ | |
1879 | if (ack && config_af_params.extra_listen && !p2p->block_gon_req_tx && | |
1880 | test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) && | |
1881 | p2p->af_sent_channel == afx_hdl->my_listen_chan) { | |
1882 | delta_ms = jiffies_to_msecs(jiffies - p2p->af_tx_sent_jiffies); | |
1883 | if (le32_to_cpu(af_params->dwell_time) > delta_ms) | |
1884 | extra_listen_time = le32_to_cpu(af_params->dwell_time) - | |
1885 | delta_ms; | |
1886 | else | |
1887 | extra_listen_time = 0; | |
1888 | if (extra_listen_time > 50) { | |
1889 | set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1890 | &p2p->status); | |
1891 | brcmf_dbg(INFO, "Wait more time! actual af time:%d, calculated extra listen:%d\n", | |
1892 | le32_to_cpu(af_params->dwell_time), | |
1893 | extra_listen_time); | |
1894 | extra_listen_time += 100; | |
1895 | if (!brcmf_p2p_discover_listen(p2p, | |
1896 | p2p->af_sent_channel, | |
1897 | extra_listen_time)) { | |
1898 | unsigned long duration; | |
1899 | ||
1900 | extra_listen_time += 100; | |
1901 | duration = msecs_to_jiffies(extra_listen_time); | |
1902 | wait_for_completion_timeout(&p2p->wait_next_af, | |
1903 | duration); | |
1904 | } | |
1905 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, | |
1906 | &p2p->status); | |
1907 | } | |
1908 | } | |
1909 | ||
1910 | if (p2p->block_gon_req_tx) { | |
1911 | /* if ack is true, supplicant will wait more time(100ms). | |
1912 | * so we will return it as a success to get more time . | |
1913 | */ | |
1914 | p2p->block_gon_req_tx = false; | |
1915 | ack = true; | |
1916 | } | |
1917 | ||
1918 | clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status); | |
18e2f61d HM |
1919 | /* if all done, turn mpc on again */ |
1920 | if (config_af_params.mpc_onoff == 1) | |
a0f472ac | 1921 | brcmf_set_mpc(ifp, 1); |
18e2f61d HM |
1922 | |
1923 | return ack; | |
1924 | } | |
1925 | ||
6eda4e2c HM |
1926 | /** |
1927 | * brcmf_p2p_notify_rx_mgmt_p2p_probereq() - Event handler for p2p probe req. | |
1928 | * | |
1929 | * @ifp: interface pointer for which event was received. | |
1930 | * @e: even message. | |
1931 | * @data: payload of event message (probe request). | |
1932 | */ | |
1933 | s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp, | |
1934 | const struct brcmf_event_msg *e, | |
1935 | void *data) | |
1936 | { | |
1937 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1938 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1939 | struct afx_hdl *afx_hdl = &p2p->afx_hdl; | |
6eda4e2c HM |
1940 | struct brcmf_cfg80211_vif *vif = ifp->vif; |
1941 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
83cf17aa | 1942 | struct brcmu_chan ch; |
6eda4e2c HM |
1943 | u8 *mgmt_frame; |
1944 | u32 mgmt_frame_len; | |
1945 | s32 freq; | |
1946 | u16 mgmt_type; | |
1947 | ||
1948 | brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code, | |
1949 | e->reason); | |
1950 | ||
0aedbcaf HM |
1951 | if (e->datalen < sizeof(*rxframe)) { |
1952 | brcmf_dbg(SCAN, "Event data to small. Ignore\n"); | |
1953 | return 0; | |
1954 | } | |
1955 | ||
83cf17aa FL |
1956 | ch.chspec = be16_to_cpu(rxframe->chanspec); |
1957 | cfg->d11inf.decchspec(&ch); | |
1958 | ||
6eda4e2c | 1959 | if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status) && |
692e5167 | 1960 | (ether_addr_equal(afx_hdl->tx_dst_addr, e->addr))) { |
4712d88a | 1961 | afx_hdl->peer_chan = ch.control_ch_num; |
6eda4e2c HM |
1962 | brcmf_dbg(INFO, "PROBE REQUEST: Peer found, channel=%d\n", |
1963 | afx_hdl->peer_chan); | |
1964 | complete(&afx_hdl->act_frm_scan); | |
1965 | } | |
1966 | ||
1967 | /* Firmware sends us two proberesponses for each idx one. At the */ | |
1968 | /* moment anything but bsscfgidx 0 is passed up to supplicant */ | |
1969 | if (e->bsscfgidx == 0) | |
1970 | return 0; | |
1971 | ||
1972 | /* Filter any P2P probe reqs arriving during the GO-NEG Phase */ | |
1973 | if (test_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status)) { | |
1974 | brcmf_dbg(INFO, "Filtering P2P probe_req in GO-NEG phase\n"); | |
1975 | return 0; | |
1976 | } | |
1977 | ||
1978 | /* Check if wpa_supplicant has registered for this frame */ | |
1979 | brcmf_dbg(INFO, "vif->mgmt_rx_reg %04x\n", vif->mgmt_rx_reg); | |
1980 | mgmt_type = (IEEE80211_STYPE_PROBE_REQ & IEEE80211_FCTL_STYPE) >> 4; | |
1981 | if ((vif->mgmt_rx_reg & BIT(mgmt_type)) == 0) | |
1982 | return 0; | |
1983 | ||
1984 | mgmt_frame = (u8 *)(rxframe + 1); | |
1985 | mgmt_frame_len = e->datalen - sizeof(*rxframe); | |
4712d88a | 1986 | freq = ieee80211_channel_to_frequency(ch.control_ch_num, |
83cf17aa | 1987 | ch.band == BRCMU_CHAN_BAND_2G ? |
57fbcce3 JB |
1988 | NL80211_BAND_2GHZ : |
1989 | NL80211_BAND_5GHZ); | |
bffc61c9 | 1990 | |
970fdfa8 | 1991 | cfg80211_rx_mgmt(&vif->wdev, freq, 0, mgmt_frame, mgmt_frame_len, 0); |
6eda4e2c HM |
1992 | |
1993 | brcmf_dbg(INFO, "mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n", | |
73f2c8e9 | 1994 | mgmt_frame_len, e->datalen, ch.chspec, freq); |
6eda4e2c HM |
1995 | |
1996 | return 0; | |
1997 | } | |
1998 | ||
18e2f61d | 1999 | |
7a5c1f64 HM |
2000 | /** |
2001 | * brcmf_p2p_get_current_chanspec() - Get current operation channel. | |
2002 | * | |
2003 | * @p2p: P2P specific data. | |
2004 | * @chanspec: chanspec to be returned. | |
2005 | */ | |
2006 | static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p, | |
2007 | u16 *chanspec) | |
d3c0b633 | 2008 | { |
7a5c1f64 | 2009 | struct brcmf_if *ifp; |
15a953d0 | 2010 | u8 mac_addr[ETH_ALEN]; |
83cf17aa | 2011 | struct brcmu_chan ch; |
15a953d0 HM |
2012 | struct brcmf_bss_info_le *bi; |
2013 | u8 *buf; | |
7a5c1f64 HM |
2014 | |
2015 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; | |
2016 | ||
15a953d0 HM |
2017 | if (brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mac_addr, |
2018 | ETH_ALEN) == 0) { | |
2019 | buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); | |
2020 | if (buf != NULL) { | |
2021 | *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); | |
2022 | if (brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, | |
2023 | buf, WL_BSS_INFO_MAX) == 0) { | |
2024 | bi = (struct brcmf_bss_info_le *)(buf + 4); | |
2025 | *chanspec = le16_to_cpu(bi->chanspec); | |
2026 | kfree(buf); | |
2027 | return; | |
2028 | } | |
2029 | kfree(buf); | |
2030 | } | |
2031 | } | |
2032 | /* Use default channel for P2P */ | |
2033 | ch.chnum = BRCMF_P2P_TEMP_CHAN; | |
83cf17aa FL |
2034 | ch.bw = BRCMU_CHAN_BW_20; |
2035 | p2p->cfg->d11inf.encchspec(&ch); | |
2036 | *chanspec = ch.chspec; | |
7a5c1f64 HM |
2037 | } |
2038 | ||
2039 | /** | |
ea3f903c | 2040 | * brcmf_p2p_ifchange - Change a P2P Role. |
78211e02 | 2041 | * @cfg: driver private data for cfg80211 interface. |
57636058 | 2042 | * @if_type: interface type. |
7a5c1f64 HM |
2043 | * Returns 0 if success. |
2044 | */ | |
2045 | int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg, | |
2046 | enum brcmf_fil_p2p_if_types if_type) | |
2047 | { | |
2048 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
dcb1471b | 2049 | struct brcmf_pub *drvr = cfg->pub; |
7a5c1f64 HM |
2050 | struct brcmf_cfg80211_vif *vif; |
2051 | struct brcmf_fil_p2p_if_le if_request; | |
2052 | s32 err; | |
2053 | u16 chanspec; | |
2054 | ||
2055 | brcmf_dbg(TRACE, "Enter\n"); | |
2056 | ||
2057 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
2058 | if (!vif) { | |
dcb1471b | 2059 | bphy_err(drvr, "vif for P2PAPI_BSSCFG_PRIMARY does not exist\n"); |
7a5c1f64 | 2060 | return -EPERM; |
d3c0b633 | 2061 | } |
a0f472ac | 2062 | brcmf_notify_escan_complete(cfg, vif->ifp, true, true); |
7a5c1f64 HM |
2063 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; |
2064 | if (!vif) { | |
dcb1471b | 2065 | bphy_err(drvr, "vif for P2PAPI_BSSCFG_CONNECTION does not exist\n"); |
7a5c1f64 HM |
2066 | return -EPERM; |
2067 | } | |
f96aa07e | 2068 | brcmf_set_mpc(vif->ifp, 0); |
7a5c1f64 HM |
2069 | |
2070 | /* In concurrency case, STA may be already associated in a particular */ | |
2071 | /* channel. so retrieve the current channel of primary interface and */ | |
2072 | /* then start the virtual interface on that. */ | |
2073 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
2074 | ||
2075 | if_request.type = cpu_to_le16((u16)if_type); | |
2076 | if_request.chspec = cpu_to_le16(chanspec); | |
babfd3ca | 2077 | memcpy(if_request.addr, p2p->conn_int_addr, sizeof(if_request.addr)); |
7a5c1f64 HM |
2078 | |
2079 | brcmf_cfg80211_arm_vif_event(cfg, vif); | |
2080 | err = brcmf_fil_iovar_data_set(vif->ifp, "p2p_ifupd", &if_request, | |
2081 | sizeof(if_request)); | |
2082 | if (err) { | |
dcb1471b | 2083 | bphy_err(drvr, "p2p_ifupd FAILED, err=%d\n", err); |
7a5c1f64 HM |
2084 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
2085 | return err; | |
2086 | } | |
a9eb0c4b AS |
2087 | err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_CHANGE, |
2088 | BRCMF_VIF_EVENT_TIMEOUT); | |
7a5c1f64 HM |
2089 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
2090 | if (!err) { | |
dcb1471b | 2091 | bphy_err(drvr, "No BRCMF_E_IF_CHANGE event received\n"); |
7a5c1f64 HM |
2092 | return -EIO; |
2093 | } | |
2094 | ||
2095 | err = brcmf_fil_cmd_int_set(vif->ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
2096 | BRCMF_SCB_TIMEOUT_VALUE); | |
2097 | ||
2098 | return err; | |
2099 | } | |
2100 | ||
2101 | static int brcmf_p2p_request_p2p_if(struct brcmf_p2p_info *p2p, | |
2102 | struct brcmf_if *ifp, u8 ea[ETH_ALEN], | |
2103 | enum brcmf_fil_p2p_if_types iftype) | |
2104 | { | |
2105 | struct brcmf_fil_p2p_if_le if_request; | |
2106 | int err; | |
2107 | u16 chanspec; | |
2108 | ||
2109 | /* we need a default channel */ | |
2110 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
d3c0b633 AS |
2111 | |
2112 | /* fill the firmware request */ | |
2113 | memcpy(if_request.addr, ea, ETH_ALEN); | |
7ee2d926 | 2114 | if_request.type = cpu_to_le16((u16)iftype); |
d3c0b633 AS |
2115 | if_request.chspec = cpu_to_le16(chanspec); |
2116 | ||
2117 | err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request, | |
2118 | sizeof(if_request)); | |
d3c0b633 | 2119 | |
d3c0b633 AS |
2120 | return err; |
2121 | } | |
2122 | ||
5f4f9f11 AS |
2123 | static int brcmf_p2p_disable_p2p_if(struct brcmf_cfg80211_vif *vif) |
2124 | { | |
2125 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
2126 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
2127 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
fba610c5 | 2128 | const u8 *addr = vif->wdev.netdev->dev_addr; |
5f4f9f11 AS |
2129 | |
2130 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdis", addr, ETH_ALEN); | |
2131 | } | |
2132 | ||
2133 | static int brcmf_p2p_release_p2p_if(struct brcmf_cfg80211_vif *vif) | |
2134 | { | |
2135 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
2136 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
2137 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
fba610c5 | 2138 | const u8 *addr = vif->wdev.netdev->dev_addr; |
5f4f9f11 AS |
2139 | |
2140 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdel", addr, ETH_ALEN); | |
2141 | } | |
2142 | ||
27f10e38 AS |
2143 | /** |
2144 | * brcmf_p2p_create_p2pdev() - create a P2P_DEVICE virtual interface. | |
2145 | * | |
2146 | * @p2p: P2P specific data. | |
2147 | * @wiphy: wiphy device of new interface. | |
2148 | * @addr: mac address for this new interface. | |
2149 | */ | |
2150 | static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p, | |
2151 | struct wiphy *wiphy, | |
2152 | u8 *addr) | |
2153 | { | |
dcb1471b | 2154 | struct brcmf_pub *drvr = p2p->cfg->pub; |
27f10e38 AS |
2155 | struct brcmf_cfg80211_vif *p2p_vif; |
2156 | struct brcmf_if *p2p_ifp; | |
2157 | struct brcmf_if *pri_ifp; | |
2158 | int err; | |
37a869ec | 2159 | u32 bsscfgidx; |
27f10e38 AS |
2160 | |
2161 | if (p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif) | |
2162 | return ERR_PTR(-ENOSPC); | |
2163 | ||
26072330 | 2164 | p2p_vif = brcmf_alloc_vif(p2p->cfg, NL80211_IFTYPE_P2P_DEVICE); |
27f10e38 | 2165 | if (IS_ERR(p2p_vif)) { |
dcb1471b | 2166 | bphy_err(drvr, "could not create discovery vif\n"); |
27f10e38 AS |
2167 | return (struct wireless_dev *)p2p_vif; |
2168 | } | |
2169 | ||
27f10e38 | 2170 | pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
cb746e47 AVS |
2171 | |
2172 | /* firmware requires unique mac address for p2pdev interface */ | |
2173 | if (addr && ether_addr_equal(addr, pri_ifp->mac_addr)) { | |
dcb1471b | 2174 | bphy_err(drvr, "discovery vif must be different from primary interface\n"); |
5cc509aa NE |
2175 | err = -EINVAL; |
2176 | goto fail; | |
cb746e47 AVS |
2177 | } |
2178 | ||
01b8e7db | 2179 | brcmf_p2p_generate_bss_mac(p2p, addr); |
27f10e38 AS |
2180 | brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr); |
2181 | ||
01b8e7db | 2182 | brcmf_cfg80211_arm_vif_event(p2p->cfg, p2p_vif); |
cb8dc71f | 2183 | brcmf_fweh_p2pdev_setup(pri_ifp, true); |
01b8e7db | 2184 | |
27f10e38 AS |
2185 | /* Initialize P2P Discovery in the firmware */ |
2186 | err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); | |
2187 | if (err < 0) { | |
dcb1471b | 2188 | bphy_err(drvr, "set p2p_disc error\n"); |
cb8dc71f | 2189 | brcmf_fweh_p2pdev_setup(pri_ifp, false); |
01b8e7db AS |
2190 | brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL); |
2191 | goto fail; | |
2192 | } | |
2193 | ||
2194 | /* wait for firmware event */ | |
a9eb0c4b AS |
2195 | err = brcmf_cfg80211_wait_vif_event(p2p->cfg, BRCMF_E_IF_ADD, |
2196 | BRCMF_VIF_EVENT_TIMEOUT); | |
01b8e7db | 2197 | brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL); |
cb8dc71f | 2198 | brcmf_fweh_p2pdev_setup(pri_ifp, false); |
01b8e7db | 2199 | if (!err) { |
dcb1471b | 2200 | bphy_err(drvr, "timeout occurred\n"); |
01b8e7db AS |
2201 | err = -EIO; |
2202 | goto fail; | |
27f10e38 | 2203 | } |
01b8e7db AS |
2204 | |
2205 | /* discovery interface created */ | |
2206 | p2p_ifp = p2p_vif->ifp; | |
2207 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif; | |
2208 | memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN); | |
2209 | memcpy(&p2p_vif->wdev.address, p2p->dev_addr, sizeof(p2p->dev_addr)); | |
2210 | ||
2211 | /* verify bsscfg index for P2P discovery */ | |
37a869ec | 2212 | err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bsscfgidx); |
27f10e38 | 2213 | if (err < 0) { |
dcb1471b | 2214 | bphy_err(drvr, "retrieving discover bsscfg index failed\n"); |
01b8e7db | 2215 | goto fail; |
27f10e38 AS |
2216 | } |
2217 | ||
37a869ec | 2218 | WARN_ON(p2p_ifp->bsscfgidx != bsscfgidx); |
27f10e38 AS |
2219 | |
2220 | init_completion(&p2p->send_af_done); | |
2221 | INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler); | |
2222 | init_completion(&p2p->afx_hdl.act_frm_scan); | |
2223 | init_completion(&p2p->wait_next_af); | |
2224 | ||
2225 | return &p2p_vif->wdev; | |
01b8e7db AS |
2226 | |
2227 | fail: | |
427dec5f | 2228 | brcmf_free_vif(p2p_vif); |
01b8e7db | 2229 | return ERR_PTR(err); |
27f10e38 AS |
2230 | } |
2231 | ||
7294ee6f | 2232 | static int brcmf_p2p_get_conn_idx(struct brcmf_cfg80211_info *cfg) |
babfd3ca WF |
2233 | { |
2234 | int i; | |
2235 | struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); | |
2236 | ||
2237 | if (!ifp) | |
2238 | return -ENODEV; | |
2239 | ||
2240 | for (i = P2PAPI_BSSCFG_CONNECTION; i < P2PAPI_BSSCFG_MAX; i++) { | |
2241 | if (!cfg->p2p.bss_idx[i].vif) { | |
2242 | if (i == P2PAPI_BSSCFG_CONNECTION2 && | |
2243 | !(brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) { | |
2244 | brcmf_err("Multi p2p not supported"); | |
2245 | return -EIO; | |
2246 | } | |
2247 | return i; | |
2248 | } | |
2249 | } | |
2250 | return -EIO; | |
2251 | } | |
2252 | ||
9f440b7b AS |
2253 | /** |
2254 | * brcmf_p2p_add_vif() - create a new P2P virtual interface. | |
2255 | * | |
2256 | * @wiphy: wiphy device of new interface. | |
2257 | * @name: name of the new interface. | |
6bab2e19 | 2258 | * @name_assign_type: origin of the interface name |
9f440b7b | 2259 | * @type: nl80211 interface type. |
27f10e38 | 2260 | * @params: contains mac address for P2P device. |
9f440b7b AS |
2261 | */ |
2262 | struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, | |
6bab2e19 | 2263 | unsigned char name_assign_type, |
818a986e | 2264 | enum nl80211_iftype type, |
9f440b7b AS |
2265 | struct vif_params *params) |
2266 | { | |
d3c0b633 AS |
2267 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); |
2268 | struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); | |
dcb1471b | 2269 | struct brcmf_pub *drvr = cfg->pub; |
d3c0b633 AS |
2270 | struct brcmf_cfg80211_vif *vif; |
2271 | enum brcmf_fil_p2p_if_types iftype; | |
babfd3ca WF |
2272 | int err = 0; |
2273 | int connidx; | |
2274 | u8 *p2p_intf_addr; | |
d3c0b633 AS |
2275 | |
2276 | if (brcmf_cfg80211_vif_event_armed(cfg)) | |
2277 | return ERR_PTR(-EBUSY); | |
2278 | ||
9f440b7b | 2279 | brcmf_dbg(INFO, "adding vif \"%s\" (type=%d)\n", name, type); |
d3c0b633 AS |
2280 | |
2281 | switch (type) { | |
2282 | case NL80211_IFTYPE_P2P_CLIENT: | |
2283 | iftype = BRCMF_FIL_P2P_IF_CLIENT; | |
d3c0b633 AS |
2284 | break; |
2285 | case NL80211_IFTYPE_P2P_GO: | |
2286 | iftype = BRCMF_FIL_P2P_IF_GO; | |
d3c0b633 | 2287 | break; |
27f10e38 AS |
2288 | case NL80211_IFTYPE_P2P_DEVICE: |
2289 | return brcmf_p2p_create_p2pdev(&cfg->p2p, wiphy, | |
2290 | params->macaddr); | |
d3c0b633 AS |
2291 | default: |
2292 | return ERR_PTR(-EOPNOTSUPP); | |
2293 | } | |
2294 | ||
26072330 | 2295 | vif = brcmf_alloc_vif(cfg, type); |
7ee2d926 HM |
2296 | if (IS_ERR(vif)) |
2297 | return (struct wireless_dev *)vif; | |
d3c0b633 AS |
2298 | brcmf_cfg80211_arm_vif_event(cfg, vif); |
2299 | ||
babfd3ca WF |
2300 | connidx = brcmf_p2p_get_conn_idx(cfg); |
2301 | ||
2302 | if (connidx == P2PAPI_BSSCFG_CONNECTION) | |
2303 | p2p_intf_addr = cfg->p2p.conn_int_addr; | |
2304 | else if (connidx == P2PAPI_BSSCFG_CONNECTION2) | |
2305 | p2p_intf_addr = cfg->p2p.conn2_int_addr; | |
2306 | else | |
2307 | err = -EINVAL; | |
2308 | ||
2309 | if (!err) | |
2310 | err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, | |
2311 | p2p_intf_addr, iftype); | |
2312 | ||
7ee2d926 | 2313 | if (err) { |
babfd3ca | 2314 | brcmf_err("request p2p interface failed\n"); |
7ee2d926 | 2315 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
d3c0b633 | 2316 | goto fail; |
7ee2d926 | 2317 | } |
d3c0b633 AS |
2318 | |
2319 | /* wait for firmware event */ | |
a9eb0c4b AS |
2320 | err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_ADD, |
2321 | BRCMF_VIF_EVENT_TIMEOUT); | |
d3c0b633 AS |
2322 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
2323 | if (!err) { | |
dcb1471b | 2324 | bphy_err(drvr, "timeout occurred\n"); |
d3c0b633 AS |
2325 | err = -EIO; |
2326 | goto fail; | |
2327 | } | |
2328 | ||
2329 | /* interface created in firmware */ | |
2330 | ifp = vif->ifp; | |
2331 | if (!ifp) { | |
dcb1471b | 2332 | bphy_err(drvr, "no if pointer provided\n"); |
d3c0b633 | 2333 | err = -ENOENT; |
7ee2d926 | 2334 | goto fail; |
d3c0b633 AS |
2335 | } |
2336 | ||
2337 | strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1); | |
6bab2e19 | 2338 | ifp->ndev->name_assign_type = name_assign_type; |
4b3a89de HM |
2339 | err = brcmf_net_attach(ifp, true); |
2340 | if (err) { | |
dcb1471b | 2341 | bphy_err(drvr, "Registering netdevice failed\n"); |
dca2307e | 2342 | free_netdev(ifp->ndev); |
4b3a89de HM |
2343 | goto fail; |
2344 | } | |
cbb371da | 2345 | |
babfd3ca | 2346 | cfg->p2p.bss_idx[connidx].vif = vif; |
7ee2d926 HM |
2347 | /* Disable firmware roaming for P2P interface */ |
2348 | brcmf_fil_iovar_int_set(ifp, "roam_off", 1); | |
2349 | if (iftype == BRCMF_FIL_P2P_IF_GO) { | |
2350 | /* set station timeout for p2p */ | |
2351 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
2352 | BRCMF_SCB_TIMEOUT_VALUE); | |
2353 | } | |
d3c0b633 AS |
2354 | return &ifp->vif->wdev; |
2355 | ||
2356 | fail: | |
427dec5f | 2357 | brcmf_free_vif(vif); |
d3c0b633 | 2358 | return ERR_PTR(err); |
9f440b7b AS |
2359 | } |
2360 | ||
2361 | /** | |
2362 | * brcmf_p2p_del_vif() - delete a P2P virtual interface. | |
2363 | * | |
2364 | * @wiphy: wiphy device of interface. | |
2365 | * @wdev: wireless device of interface. | |
9f440b7b AS |
2366 | */ |
2367 | int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2368 | { | |
856d5a01 | 2369 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); |
6eda4e2c | 2370 | struct brcmf_p2p_info *p2p = &cfg->p2p; |
9f440b7b | 2371 | struct brcmf_cfg80211_vif *vif; |
d77facb8 | 2372 | enum nl80211_iftype iftype; |
5f4f9f11 | 2373 | bool wait_for_disable = false; |
d3c0b633 | 2374 | int err; |
9f440b7b | 2375 | |
5f4f9f11 | 2376 | brcmf_dbg(TRACE, "delete P2P vif\n"); |
9f440b7b | 2377 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); |
d3c0b633 | 2378 | |
d77facb8 | 2379 | iftype = vif->wdev.iftype; |
a2044d91 | 2380 | brcmf_cfg80211_arm_vif_event(cfg, vif); |
d77facb8 | 2381 | switch (iftype) { |
5f4f9f11 AS |
2382 | case NL80211_IFTYPE_P2P_CLIENT: |
2383 | if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state)) | |
2384 | wait_for_disable = true; | |
2385 | break; | |
2386 | ||
2387 | case NL80211_IFTYPE_P2P_GO: | |
2388 | if (!brcmf_p2p_disable_p2p_if(vif)) | |
2389 | wait_for_disable = true; | |
2390 | break; | |
2391 | ||
2392 | case NL80211_IFTYPE_P2P_DEVICE: | |
9831bcb9 HM |
2393 | if (!p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif) |
2394 | return 0; | |
f37d69a4 AS |
2395 | brcmf_p2p_cancel_remain_on_channel(vif->ifp); |
2396 | brcmf_p2p_deinit_discovery(p2p); | |
20856adf RM |
2397 | break; |
2398 | ||
5f4f9f11 AS |
2399 | default: |
2400 | return -ENOTSUPP; | |
5f4f9f11 AS |
2401 | } |
2402 | ||
6eda4e2c HM |
2403 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); |
2404 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
2405 | ||
5f4f9f11 | 2406 | if (wait_for_disable) |
7ee2d926 | 2407 | wait_for_completion_timeout(&cfg->vif_disabled, |
63ce3d5d | 2408 | BRCMF_P2P_DISABLE_TIMEOUT); |
5f4f9f11 | 2409 | |
a2044d91 | 2410 | err = 0; |
d77facb8 | 2411 | if (iftype != NL80211_IFTYPE_P2P_DEVICE) { |
a2044d91 HM |
2412 | brcmf_vif_clear_mgmt_ies(vif); |
2413 | err = brcmf_p2p_release_p2p_if(vif); | |
2414 | } | |
7ee2d926 | 2415 | if (!err) { |
5f4f9f11 | 2416 | /* wait for firmware event */ |
a9eb0c4b AS |
2417 | err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_DEL, |
2418 | BRCMF_VIF_EVENT_TIMEOUT); | |
7ee2d926 HM |
2419 | if (!err) |
2420 | err = -EIO; | |
2421 | else | |
2422 | err = 0; | |
2423 | } | |
a63b0987 | 2424 | brcmf_remove_interface(vif->ifp, true); |
a2044d91 | 2425 | |
d3c0b633 | 2426 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
d77facb8 | 2427 | if (iftype != NL80211_IFTYPE_P2P_DEVICE) |
a2044d91 | 2428 | p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; |
5f4f9f11 AS |
2429 | |
2430 | return err; | |
9f440b7b | 2431 | } |
27f10e38 | 2432 | |
a05829a7 | 2433 | void brcmf_p2p_ifp_removed(struct brcmf_if *ifp, bool locked) |
9831bcb9 HM |
2434 | { |
2435 | struct brcmf_cfg80211_info *cfg; | |
2436 | struct brcmf_cfg80211_vif *vif; | |
2437 | ||
2438 | brcmf_dbg(INFO, "P2P: device interface removed\n"); | |
2439 | vif = ifp->vif; | |
2440 | cfg = wdev_to_cfg(&vif->wdev); | |
2441 | cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; | |
bd83a2fc | 2442 | if (!locked) { |
15dacf88 | 2443 | rtnl_lock(); |
a05829a7 JB |
2444 | wiphy_lock(cfg->wiphy); |
2445 | cfg80211_unregister_wdev(&vif->wdev); | |
2446 | wiphy_unlock(cfg->wiphy); | |
15dacf88 | 2447 | rtnl_unlock(); |
a05829a7 JB |
2448 | } else { |
2449 | cfg80211_unregister_wdev(&vif->wdev); | |
2450 | } | |
9831bcb9 HM |
2451 | brcmf_free_vif(vif); |
2452 | } | |
2453 | ||
27f10e38 AS |
2454 | int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev) |
2455 | { | |
2456 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
2457 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2458 | struct brcmf_cfg80211_vif *vif; | |
2459 | int err; | |
2460 | ||
2461 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); | |
2462 | mutex_lock(&cfg->usr_sync); | |
2463 | err = brcmf_p2p_enable_discovery(p2p); | |
2464 | if (!err) | |
2465 | set_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state); | |
2466 | mutex_unlock(&cfg->usr_sync); | |
2467 | return err; | |
2468 | } | |
2469 | ||
2470 | void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev) | |
2471 | { | |
2472 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
2473 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
2474 | struct brcmf_cfg80211_vif *vif; | |
2475 | ||
2476 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); | |
d1bb34c1 HM |
2477 | /* This call can be result of the unregister_wdev call. In that case |
2478 | * we dont want to do anything anymore. Just return. The config vif | |
2479 | * will have been cleared at this point. | |
2480 | */ | |
2481 | if (p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif == vif) { | |
2482 | mutex_lock(&cfg->usr_sync); | |
a2044d91 HM |
2483 | /* Set the discovery state to SCAN */ |
2484 | (void)brcmf_p2p_set_discover_state(vif->ifp, | |
2485 | WL_P2P_DISC_ST_SCAN, 0, 0); | |
d1bb34c1 HM |
2486 | brcmf_abort_scanning(cfg); |
2487 | clear_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state); | |
2488 | mutex_unlock(&cfg->usr_sync); | |
2489 | } | |
27f10e38 | 2490 | } |
55479df8 AS |
2491 | |
2492 | /** | |
2493 | * brcmf_p2p_attach() - attach for P2P. | |
2494 | * | |
2495 | * @cfg: driver private data for cfg80211 interface. | |
2b76acdb | 2496 | * @p2pdev_forced: create p2p device interface at attach. |
55479df8 | 2497 | */ |
ae7c03f6 | 2498 | s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg, bool p2pdev_forced) |
55479df8 | 2499 | { |
dcb1471b | 2500 | struct brcmf_pub *drvr = cfg->pub; |
55479df8 | 2501 | struct brcmf_p2p_info *p2p; |
2b76acdb | 2502 | struct brcmf_if *pri_ifp; |
55479df8 | 2503 | s32 err = 0; |
2b76acdb | 2504 | void *err_ptr; |
55479df8 AS |
2505 | |
2506 | p2p = &cfg->p2p; | |
2507 | p2p->cfg = cfg; | |
2508 | ||
2b76acdb | 2509 | pri_ifp = brcmf_get_ifp(cfg->pub, 0); |
55479df8 AS |
2510 | p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif = pri_ifp->vif; |
2511 | ||
ae7c03f6 | 2512 | if (p2pdev_forced) { |
2b76acdb HM |
2513 | err_ptr = brcmf_p2p_create_p2pdev(p2p, NULL, NULL); |
2514 | if (IS_ERR(err_ptr)) { | |
dcb1471b | 2515 | bphy_err(drvr, "P2P device creation failed.\n"); |
2b76acdb HM |
2516 | err = PTR_ERR(err_ptr); |
2517 | } | |
ae7c03f6 | 2518 | } else { |
ae7c03f6 HM |
2519 | p2p->p2pdev_dynamically = true; |
2520 | } | |
55479df8 AS |
2521 | return err; |
2522 | } | |
2523 | ||
2524 | /** | |
2525 | * brcmf_p2p_detach() - detach P2P. | |
2526 | * | |
2527 | * @p2p: P2P specific data. | |
2528 | */ | |
2529 | void brcmf_p2p_detach(struct brcmf_p2p_info *p2p) | |
2530 | { | |
2531 | struct brcmf_cfg80211_vif *vif; | |
2532 | ||
2533 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
2534 | if (vif != NULL) { | |
2535 | brcmf_p2p_cancel_remain_on_channel(vif->ifp); | |
2536 | brcmf_p2p_deinit_discovery(p2p); | |
b50ddfa8 | 2537 | brcmf_remove_interface(vif->ifp, false); |
55479df8 AS |
2538 | } |
2539 | /* just set it all to zero */ | |
2540 | memset(p2p, 0, sizeof(*p2p)); | |
2541 | } | |
2542 |