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9f440b7b AS |
1 | /* |
2 | * Copyright (c) 2012 Broadcom Corporation | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | #include <linux/slab.h> | |
17 | #include <linux/netdevice.h> | |
18 | #include <net/cfg80211.h> | |
19 | ||
20 | #include <brcmu_wifi.h> | |
21 | #include <brcmu_utils.h> | |
22 | #include <defs.h> | |
23 | #include <dhd.h> | |
24 | #include <dhd_dbg.h> | |
25 | #include "fwil.h" | |
d3c0b633 | 26 | #include "fwil_types.h" |
9f440b7b AS |
27 | #include "p2p.h" |
28 | #include "wl_cfg80211.h" | |
29 | ||
30 | /* parameters used for p2p escan */ | |
31 | #define P2PAPI_SCAN_NPROBES 1 | |
32 | #define P2PAPI_SCAN_DWELL_TIME_MS 80 | |
33 | #define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40 | |
34 | #define P2PAPI_SCAN_HOME_TIME_MS 60 | |
35 | #define P2PAPI_SCAN_NPROBS_TIME_MS 30 | |
36 | #define P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS 100 | |
37 | #define WL_SCAN_CONNECT_DWELL_TIME_MS 200 | |
38 | #define WL_SCAN_JOIN_PROBE_INTERVAL_MS 20 | |
39 | ||
40 | #define BRCMF_P2P_WILDCARD_SSID "DIRECT-" | |
41 | #define BRCMF_P2P_WILDCARD_SSID_LEN (sizeof(BRCMF_P2P_WILDCARD_SSID) - 1) | |
42 | ||
43 | #define SOCIAL_CHAN_1 1 | |
44 | #define SOCIAL_CHAN_2 6 | |
45 | #define SOCIAL_CHAN_3 11 | |
46 | #define SOCIAL_CHAN_CNT 3 | |
47 | #define AF_PEER_SEARCH_CNT 2 | |
48 | ||
d3c0b633 AS |
49 | #define BRCMF_SCB_TIMEOUT_VALUE 20 |
50 | ||
e6da3400 HM |
51 | #define P2P_VER 9 /* P2P version: 9=WiFi P2P v1.0 */ |
52 | #define P2P_PUB_AF_CATEGORY 0x04 | |
53 | #define P2P_PUB_AF_ACTION 0x09 | |
54 | #define P2P_AF_CATEGORY 0x7f | |
55 | #define P2P_OUI "\x50\x6F\x9A" /* P2P OUI */ | |
56 | #define P2P_OUI_LEN 3 /* P2P OUI length */ | |
57 | ||
18e2f61d HM |
58 | /* Action Frame Constants */ |
59 | #define DOT11_ACTION_HDR_LEN 2 /* action frame category + action */ | |
60 | #define DOT11_ACTION_CAT_OFF 0 /* category offset */ | |
61 | #define DOT11_ACTION_ACT_OFF 1 /* action offset */ | |
62 | ||
63 | #define P2P_AF_DWELL_TIME 200 | |
64 | #define P2P_AF_MIN_DWELL_TIME 100 | |
65 | #define P2P_AF_MED_DWELL_TIME 400 | |
66 | #define P2P_AF_LONG_DWELL_TIME 1000 | |
67 | #define P2P_AF_TX_MAX_RETRY 5 | |
68 | #define P2P_AF_MAX_WAIT_TIME 2000 | |
69 | #define P2P_INVALID_CHANNEL -1 | |
70 | #define P2P_CHANNEL_SYNC_RETRY 5 | |
71 | #define P2P_AF_FRM_SCAN_MAX_WAIT 1500 | |
72 | ||
e6da3400 HM |
73 | /* WiFi P2P Public Action Frame OUI Subtypes */ |
74 | #define P2P_PAF_GON_REQ 0 /* Group Owner Negotiation Req */ | |
75 | #define P2P_PAF_GON_RSP 1 /* Group Owner Negotiation Rsp */ | |
76 | #define P2P_PAF_GON_CONF 2 /* Group Owner Negotiation Confirm */ | |
77 | #define P2P_PAF_INVITE_REQ 3 /* P2P Invitation Request */ | |
78 | #define P2P_PAF_INVITE_RSP 4 /* P2P Invitation Response */ | |
79 | #define P2P_PAF_DEVDIS_REQ 5 /* Device Discoverability Request */ | |
80 | #define P2P_PAF_DEVDIS_RSP 6 /* Device Discoverability Response */ | |
81 | #define P2P_PAF_PROVDIS_REQ 7 /* Provision Discovery Request */ | |
82 | #define P2P_PAF_PROVDIS_RSP 8 /* Provision Discovery Response */ | |
83 | #define P2P_PAF_SUBTYPE_INVALID 255 /* Invalid Subtype */ | |
84 | ||
85 | /* WiFi P2P Action Frame OUI Subtypes */ | |
86 | #define P2P_AF_NOTICE_OF_ABSENCE 0 /* Notice of Absence */ | |
87 | #define P2P_AF_PRESENCE_REQ 1 /* P2P Presence Request */ | |
88 | #define P2P_AF_PRESENCE_RSP 2 /* P2P Presence Response */ | |
89 | #define P2P_AF_GO_DISC_REQ 3 /* GO Discoverability Request */ | |
90 | ||
91 | /* P2P Service Discovery related */ | |
92 | #define P2PSD_ACTION_CATEGORY 0x04 /* Public action frame */ | |
93 | #define P2PSD_ACTION_ID_GAS_IREQ 0x0a /* GAS Initial Request AF */ | |
94 | #define P2PSD_ACTION_ID_GAS_IRESP 0x0b /* GAS Initial Response AF */ | |
95 | #define P2PSD_ACTION_ID_GAS_CREQ 0x0c /* GAS Comback Request AF */ | |
96 | #define P2PSD_ACTION_ID_GAS_CRESP 0x0d /* GAS Comback Response AF */ | |
97 | ||
9f440b7b AS |
98 | /** |
99 | * struct brcmf_p2p_disc_st_le - set discovery state in firmware. | |
100 | * | |
101 | * @state: requested discovery state (see enum brcmf_p2p_disc_state). | |
102 | * @chspec: channel parameter for %WL_P2P_DISC_ST_LISTEN state. | |
103 | * @dwell: dwell time in ms for %WL_P2P_DISC_ST_LISTEN state. | |
104 | */ | |
105 | struct brcmf_p2p_disc_st_le { | |
106 | u8 state; | |
107 | __le16 chspec; | |
108 | __le16 dwell; | |
109 | }; | |
110 | ||
111 | /** | |
112 | * enum brcmf_p2p_disc_state - P2P discovery state values | |
113 | * | |
114 | * @WL_P2P_DISC_ST_SCAN: P2P discovery with wildcard SSID and P2P IE. | |
115 | * @WL_P2P_DISC_ST_LISTEN: P2P discovery off-channel for specified time. | |
116 | * @WL_P2P_DISC_ST_SEARCH: P2P discovery with P2P wildcard SSID and P2P IE. | |
117 | */ | |
118 | enum brcmf_p2p_disc_state { | |
119 | WL_P2P_DISC_ST_SCAN, | |
120 | WL_P2P_DISC_ST_LISTEN, | |
121 | WL_P2P_DISC_ST_SEARCH | |
122 | }; | |
123 | ||
124 | /** | |
125 | * struct brcmf_p2p_scan_le - P2P specific scan request. | |
126 | * | |
127 | * @type: type of scan method requested (values: 'E' or 'S'). | |
128 | * @reserved: reserved (ignored). | |
129 | * @eparams: parameters used for type 'E'. | |
130 | * @sparams: parameters used for type 'S'. | |
131 | */ | |
132 | struct brcmf_p2p_scan_le { | |
133 | u8 type; | |
134 | u8 reserved[3]; | |
135 | union { | |
136 | struct brcmf_escan_params_le eparams; | |
137 | struct brcmf_scan_params_le sparams; | |
138 | }; | |
139 | }; | |
140 | ||
e6da3400 HM |
141 | /** |
142 | * struct brcmf_p2p_pub_act_frame - WiFi P2P Public Action Frame | |
143 | * | |
144 | * @category: P2P_PUB_AF_CATEGORY | |
145 | * @action: P2P_PUB_AF_ACTION | |
146 | * @oui[3]: P2P_OUI | |
147 | * @oui_type: OUI type - P2P_VER | |
148 | * @subtype: OUI subtype - P2P_TYPE_* | |
149 | * @dialog_token: nonzero, identifies req/rsp transaction | |
150 | * @elts[1]: Variable length information elements. | |
151 | */ | |
152 | struct brcmf_p2p_pub_act_frame { | |
153 | u8 category; | |
154 | u8 action; | |
155 | u8 oui[3]; | |
156 | u8 oui_type; | |
157 | u8 subtype; | |
158 | u8 dialog_token; | |
159 | u8 elts[1]; | |
160 | }; | |
161 | ||
162 | /** | |
163 | * struct brcmf_p2p_action_frame - WiFi P2P Action Frame | |
164 | * | |
165 | * @category: P2P_AF_CATEGORY | |
166 | * @OUI[3]: OUI - P2P_OUI | |
167 | * @type: OUI Type - P2P_VER | |
168 | * @subtype: OUI Subtype - P2P_AF_* | |
169 | * @dialog_token: nonzero, identifies req/resp tranaction | |
170 | * @elts[1]: Variable length information elements. | |
171 | */ | |
172 | struct brcmf_p2p_action_frame { | |
173 | u8 category; | |
174 | u8 oui[3]; | |
175 | u8 type; | |
176 | u8 subtype; | |
177 | u8 dialog_token; | |
178 | u8 elts[1]; | |
179 | }; | |
180 | ||
181 | /** | |
182 | * struct brcmf_p2psd_gas_pub_act_frame - Wi-Fi GAS Public Action Frame | |
183 | * | |
184 | * @category: 0x04 Public Action Frame | |
185 | * @action: 0x6c Advertisement Protocol | |
186 | * @dialog_token: nonzero, identifies req/rsp transaction | |
187 | * @query_data[1]: Query Data. SD gas ireq SD gas iresp | |
188 | */ | |
189 | struct brcmf_p2psd_gas_pub_act_frame { | |
190 | u8 category; | |
191 | u8 action; | |
192 | u8 dialog_token; | |
193 | u8 query_data[1]; | |
194 | }; | |
195 | ||
18e2f61d HM |
196 | /** |
197 | * struct brcmf_config_af_params - Action Frame Parameters for tx. | |
198 | * | |
199 | * @max_tx_retry: max tx retry count if tx no ack. | |
200 | * @mpc_onoff: To make sure to send successfully action frame, we have to | |
201 | * turn off mpc 0: off, 1: on, (-1): do nothing | |
202 | */ | |
203 | struct brcmf_config_af_params { | |
204 | s32 max_tx_retry; | |
205 | s32 mpc_onoff; | |
206 | }; | |
e6da3400 HM |
207 | |
208 | /** | |
209 | * brcmf_p2p_is_pub_action() - true if p2p public type frame. | |
210 | * | |
211 | * @frame: action frame data. | |
212 | * @frame_len: length of action frame data. | |
213 | * | |
214 | * Determine if action frame is p2p public action type | |
215 | */ | |
216 | static bool brcmf_p2p_is_pub_action(void *frame, u32 frame_len) | |
217 | { | |
218 | struct brcmf_p2p_pub_act_frame *pact_frm; | |
219 | ||
220 | if (frame == NULL) | |
221 | return false; | |
222 | ||
223 | pact_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
224 | if (frame_len < sizeof(struct brcmf_p2p_pub_act_frame) - 1) | |
225 | return false; | |
226 | ||
227 | if (pact_frm->category == P2P_PUB_AF_CATEGORY && | |
228 | pact_frm->action == P2P_PUB_AF_ACTION && | |
229 | pact_frm->oui_type == P2P_VER && | |
230 | memcmp(pact_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0) | |
231 | return true; | |
232 | ||
233 | return false; | |
234 | } | |
235 | ||
236 | /** | |
237 | * brcmf_p2p_is_p2p_action() - true if p2p action type frame. | |
238 | * | |
239 | * @frame: action frame data. | |
240 | * @frame_len: length of action frame data. | |
241 | * | |
242 | * Determine if action frame is p2p action type | |
243 | */ | |
244 | static bool brcmf_p2p_is_p2p_action(void *frame, u32 frame_len) | |
245 | { | |
246 | struct brcmf_p2p_action_frame *act_frm; | |
247 | ||
248 | if (frame == NULL) | |
249 | return false; | |
250 | ||
251 | act_frm = (struct brcmf_p2p_action_frame *)frame; | |
252 | if (frame_len < sizeof(struct brcmf_p2p_action_frame) - 1) | |
253 | return false; | |
254 | ||
255 | if (act_frm->category == P2P_AF_CATEGORY && | |
256 | act_frm->type == P2P_VER && | |
257 | memcmp(act_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0) | |
258 | return true; | |
259 | ||
260 | return false; | |
261 | } | |
262 | ||
263 | /** | |
264 | * brcmf_p2p_is_gas_action() - true if p2p gas action type frame. | |
265 | * | |
266 | * @frame: action frame data. | |
267 | * @frame_len: length of action frame data. | |
268 | * | |
269 | * Determine if action frame is p2p gas action type | |
270 | */ | |
271 | static bool brcmf_p2p_is_gas_action(void *frame, u32 frame_len) | |
272 | { | |
273 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
274 | ||
275 | if (frame == NULL) | |
276 | return false; | |
277 | ||
278 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
279 | if (frame_len < sizeof(struct brcmf_p2psd_gas_pub_act_frame) - 1) | |
280 | return false; | |
281 | ||
282 | if (sd_act_frm->category != P2PSD_ACTION_CATEGORY) | |
283 | return false; | |
284 | ||
285 | if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_IREQ || | |
286 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_IRESP || | |
287 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_CREQ || | |
288 | sd_act_frm->action == P2PSD_ACTION_ID_GAS_CRESP) | |
289 | return true; | |
290 | ||
291 | return false; | |
292 | } | |
293 | ||
294 | /** | |
295 | * brcmf_p2p_print_actframe() - debug print routine. | |
296 | * | |
297 | * @tx: Received or to be transmitted | |
298 | * @frame: action frame data. | |
299 | * @frame_len: length of action frame data. | |
300 | * | |
301 | * Print information about the p2p action frame | |
302 | */ | |
0a4cf487 HM |
303 | |
304 | #ifdef DEBUG | |
305 | ||
e6da3400 HM |
306 | static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len) |
307 | { | |
308 | struct brcmf_p2p_pub_act_frame *pact_frm; | |
309 | struct brcmf_p2p_action_frame *act_frm; | |
310 | struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm; | |
311 | ||
312 | if (!frame || frame_len <= 2) | |
313 | return; | |
314 | ||
315 | if (brcmf_p2p_is_pub_action(frame, frame_len)) { | |
316 | pact_frm = (struct brcmf_p2p_pub_act_frame *)frame; | |
317 | switch (pact_frm->subtype) { | |
318 | case P2P_PAF_GON_REQ: | |
319 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Req Frame\n", | |
320 | (tx) ? "TX" : "RX"); | |
321 | break; | |
322 | case P2P_PAF_GON_RSP: | |
323 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Rsp Frame\n", | |
324 | (tx) ? "TX" : "RX"); | |
325 | break; | |
326 | case P2P_PAF_GON_CONF: | |
327 | brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Confirm Frame\n", | |
328 | (tx) ? "TX" : "RX"); | |
329 | break; | |
330 | case P2P_PAF_INVITE_REQ: | |
331 | brcmf_dbg(TRACE, "%s P2P Invitation Request Frame\n", | |
332 | (tx) ? "TX" : "RX"); | |
333 | break; | |
334 | case P2P_PAF_INVITE_RSP: | |
335 | brcmf_dbg(TRACE, "%s P2P Invitation Response Frame\n", | |
336 | (tx) ? "TX" : "RX"); | |
337 | break; | |
338 | case P2P_PAF_DEVDIS_REQ: | |
339 | brcmf_dbg(TRACE, "%s P2P Device Discoverability Request Frame\n", | |
340 | (tx) ? "TX" : "RX"); | |
341 | break; | |
342 | case P2P_PAF_DEVDIS_RSP: | |
343 | brcmf_dbg(TRACE, "%s P2P Device Discoverability Response Frame\n", | |
344 | (tx) ? "TX" : "RX"); | |
345 | break; | |
346 | case P2P_PAF_PROVDIS_REQ: | |
347 | brcmf_dbg(TRACE, "%s P2P Provision Discovery Request Frame\n", | |
348 | (tx) ? "TX" : "RX"); | |
349 | break; | |
350 | case P2P_PAF_PROVDIS_RSP: | |
351 | brcmf_dbg(TRACE, "%s P2P Provision Discovery Response Frame\n", | |
352 | (tx) ? "TX" : "RX"); | |
353 | break; | |
354 | default: | |
355 | brcmf_dbg(TRACE, "%s Unknown P2P Public Action Frame\n", | |
356 | (tx) ? "TX" : "RX"); | |
357 | break; | |
358 | } | |
359 | } else if (brcmf_p2p_is_p2p_action(frame, frame_len)) { | |
360 | act_frm = (struct brcmf_p2p_action_frame *)frame; | |
361 | switch (act_frm->subtype) { | |
362 | case P2P_AF_NOTICE_OF_ABSENCE: | |
363 | brcmf_dbg(TRACE, "%s P2P Notice of Absence Frame\n", | |
364 | (tx) ? "TX" : "RX"); | |
365 | break; | |
366 | case P2P_AF_PRESENCE_REQ: | |
367 | brcmf_dbg(TRACE, "%s P2P Presence Request Frame\n", | |
368 | (tx) ? "TX" : "RX"); | |
369 | break; | |
370 | case P2P_AF_PRESENCE_RSP: | |
371 | brcmf_dbg(TRACE, "%s P2P Presence Response Frame\n", | |
372 | (tx) ? "TX" : "RX"); | |
373 | break; | |
374 | case P2P_AF_GO_DISC_REQ: | |
375 | brcmf_dbg(TRACE, "%s P2P Discoverability Request Frame\n", | |
376 | (tx) ? "TX" : "RX"); | |
377 | break; | |
378 | default: | |
379 | brcmf_dbg(TRACE, "%s Unknown P2P Action Frame\n", | |
380 | (tx) ? "TX" : "RX"); | |
381 | } | |
382 | ||
383 | } else if (brcmf_p2p_is_gas_action(frame, frame_len)) { | |
384 | sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame; | |
385 | switch (sd_act_frm->action) { | |
386 | case P2PSD_ACTION_ID_GAS_IREQ: | |
387 | brcmf_dbg(TRACE, "%s P2P GAS Initial Request\n", | |
388 | (tx) ? "TX" : "RX"); | |
389 | break; | |
390 | case P2PSD_ACTION_ID_GAS_IRESP: | |
391 | brcmf_dbg(TRACE, "%s P2P GAS Initial Response\n", | |
392 | (tx) ? "TX" : "RX"); | |
393 | break; | |
394 | case P2PSD_ACTION_ID_GAS_CREQ: | |
395 | brcmf_dbg(TRACE, "%s P2P GAS Comback Request\n", | |
396 | (tx) ? "TX" : "RX"); | |
397 | break; | |
398 | case P2PSD_ACTION_ID_GAS_CRESP: | |
399 | brcmf_dbg(TRACE, "%s P2P GAS Comback Response\n", | |
400 | (tx) ? "TX" : "RX"); | |
401 | break; | |
402 | default: | |
403 | brcmf_dbg(TRACE, "%s Unknown P2P GAS Frame\n", | |
404 | (tx) ? "TX" : "RX"); | |
405 | break; | |
406 | } | |
407 | } | |
408 | } | |
409 | ||
0a4cf487 HM |
410 | #else |
411 | ||
412 | static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len) | |
413 | { | |
414 | } | |
415 | ||
416 | #endif | |
417 | ||
9f440b7b AS |
418 | /** |
419 | * brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation. | |
420 | * | |
2fde59d9 HM |
421 | * @ifp: ifp to use for iovars (primary). |
422 | * @p2p_mac: mac address to configure for p2p_da_override | |
9f440b7b | 423 | */ |
2fde59d9 | 424 | static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac) |
9f440b7b | 425 | { |
9f440b7b AS |
426 | s32 ret = 0; |
427 | ||
2fde59d9 | 428 | brcmf_fil_iovar_int_set(ifp, "apsta", 1); |
9f440b7b AS |
429 | |
430 | /* In case of COB type, firmware has default mac address | |
431 | * After Initializing firmware, we have to set current mac address to | |
432 | * firmware for P2P device address | |
433 | */ | |
2fde59d9 HM |
434 | ret = brcmf_fil_iovar_data_set(ifp, "p2p_da_override", p2p_mac, |
435 | ETH_ALEN); | |
9f440b7b AS |
436 | if (ret) |
437 | brcmf_err("failed to update device address ret %d\n", ret); | |
438 | ||
439 | return ret; | |
440 | } | |
441 | ||
442 | /** | |
443 | * brcmf_p2p_generate_bss_mac() - derive mac addresses for P2P. | |
444 | * | |
445 | * @p2p: P2P specific data. | |
446 | * | |
447 | * P2P needs mac addresses for P2P device and interface. These are | |
448 | * derived from the primary net device, ie. the permanent ethernet | |
449 | * address of the device. | |
450 | */ | |
451 | static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p) | |
452 | { | |
2fde59d9 HM |
453 | struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; |
454 | struct brcmf_if *p2p_ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp; | |
455 | ||
9f440b7b AS |
456 | /* Generate the P2P Device Address. This consists of the device's |
457 | * primary MAC address with the locally administered bit set. | |
458 | */ | |
2fde59d9 | 459 | memcpy(p2p->dev_addr, pri_ifp->mac_addr, ETH_ALEN); |
9f440b7b | 460 | p2p->dev_addr[0] |= 0x02; |
2fde59d9 | 461 | memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN); |
9f440b7b AS |
462 | |
463 | /* Generate the P2P Interface Address. If the discovery and connection | |
464 | * BSSCFGs need to simultaneously co-exist, then this address must be | |
465 | * different from the P2P Device Address, but also locally administered. | |
466 | */ | |
467 | memcpy(p2p->int_addr, p2p->dev_addr, ETH_ALEN); | |
468 | p2p->int_addr[4] ^= 0x80; | |
469 | } | |
470 | ||
471 | /** | |
472 | * brcmf_p2p_scan_is_p2p_request() - is cfg80211 scan request a P2P scan. | |
473 | * | |
474 | * @request: the scan request as received from cfg80211. | |
475 | * | |
476 | * returns true if one of the ssids in the request matches the | |
477 | * P2P wildcard ssid; otherwise returns false. | |
478 | */ | |
479 | static bool brcmf_p2p_scan_is_p2p_request(struct cfg80211_scan_request *request) | |
480 | { | |
481 | struct cfg80211_ssid *ssids = request->ssids; | |
482 | int i; | |
483 | ||
484 | for (i = 0; i < request->n_ssids; i++) { | |
485 | if (ssids[i].ssid_len != BRCMF_P2P_WILDCARD_SSID_LEN) | |
486 | continue; | |
487 | ||
488 | brcmf_dbg(INFO, "comparing ssid \"%s\"", ssids[i].ssid); | |
489 | if (!memcmp(BRCMF_P2P_WILDCARD_SSID, ssids[i].ssid, | |
490 | BRCMF_P2P_WILDCARD_SSID_LEN)) | |
491 | return true; | |
492 | } | |
493 | return false; | |
494 | } | |
495 | ||
496 | /** | |
497 | * brcmf_p2p_set_discover_state - set discover state in firmware. | |
498 | * | |
499 | * @ifp: low-level interface object. | |
500 | * @state: discover state to set. | |
501 | * @chanspec: channel parameters (for state @WL_P2P_DISC_ST_LISTEN only). | |
502 | * @listen_ms: duration to listen (for state @WL_P2P_DISC_ST_LISTEN only). | |
503 | */ | |
504 | static s32 brcmf_p2p_set_discover_state(struct brcmf_if *ifp, u8 state, | |
505 | u16 chanspec, u16 listen_ms) | |
506 | { | |
507 | struct brcmf_p2p_disc_st_le discover_state; | |
508 | s32 ret = 0; | |
509 | brcmf_dbg(TRACE, "enter\n"); | |
510 | ||
511 | discover_state.state = state; | |
512 | discover_state.chspec = cpu_to_le16(chanspec); | |
513 | discover_state.dwell = cpu_to_le16(listen_ms); | |
514 | ret = brcmf_fil_bsscfg_data_set(ifp, "p2p_state", &discover_state, | |
515 | sizeof(discover_state)); | |
516 | return ret; | |
517 | } | |
518 | ||
9f440b7b AS |
519 | /** |
520 | * brcmf_p2p_deinit_discovery() - disable P2P device discovery. | |
521 | * | |
522 | * @p2p: P2P specific data. | |
523 | * | |
2fde59d9 | 524 | * Resets the discovery state and disables it in firmware. |
9f440b7b AS |
525 | */ |
526 | static s32 brcmf_p2p_deinit_discovery(struct brcmf_p2p_info *p2p) | |
527 | { | |
2fde59d9 | 528 | struct brcmf_cfg80211_vif *vif; |
9f440b7b | 529 | |
2fde59d9 | 530 | brcmf_dbg(TRACE, "enter\n"); |
9f440b7b AS |
531 | |
532 | /* Set the discovery state to SCAN */ | |
2fde59d9 HM |
533 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
534 | (void)brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
9f440b7b AS |
535 | |
536 | /* Disable P2P discovery in the firmware */ | |
2fde59d9 HM |
537 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; |
538 | (void)brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 0); | |
9f440b7b AS |
539 | |
540 | return 0; | |
541 | } | |
542 | ||
543 | /** | |
544 | * brcmf_p2p_enable_discovery() - initialize and configure discovery. | |
545 | * | |
546 | * @p2p: P2P specific data. | |
9f440b7b AS |
547 | * |
548 | * Initializes the discovery device and configure the virtual interface. | |
549 | */ | |
0de8aace | 550 | static int brcmf_p2p_enable_discovery(struct brcmf_p2p_info *p2p) |
9f440b7b AS |
551 | { |
552 | struct brcmf_cfg80211_vif *vif; | |
553 | s32 ret = 0; | |
554 | ||
555 | brcmf_dbg(TRACE, "enter\n"); | |
556 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
2fde59d9 HM |
557 | if (!vif) { |
558 | brcmf_err("P2P config device not available\n"); | |
559 | ret = -EPERM; | |
0de8aace | 560 | goto exit; |
9f440b7b AS |
561 | } |
562 | ||
2fde59d9 HM |
563 | if (test_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status)) { |
564 | brcmf_dbg(INFO, "P2P config device already configured\n"); | |
9f440b7b AS |
565 | goto exit; |
566 | } | |
567 | ||
2fde59d9 HM |
568 | /* Re-initialize P2P Discovery in the firmware */ |
569 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
570 | ret = brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 1); | |
571 | if (ret < 0) { | |
572 | brcmf_err("set p2p_disc error\n"); | |
573 | goto exit; | |
574 | } | |
9f440b7b | 575 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
2fde59d9 HM |
576 | ret = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0); |
577 | if (ret < 0) { | |
578 | brcmf_err("unable to set WL_P2P_DISC_ST_SCAN\n"); | |
579 | goto exit; | |
580 | } | |
9f440b7b AS |
581 | |
582 | /* | |
583 | * Set wsec to any non-zero value in the discovery bsscfg | |
584 | * to ensure our P2P probe responses have the privacy bit | |
585 | * set in the 802.11 WPA IE. Some peer devices may not | |
586 | * initiate WPS with us if this bit is not set. | |
587 | */ | |
588 | ret = brcmf_fil_bsscfg_int_set(vif->ifp, "wsec", AES_ENABLED); | |
2fde59d9 | 589 | if (ret < 0) { |
9f440b7b | 590 | brcmf_err("wsec error %d\n", ret); |
2fde59d9 HM |
591 | goto exit; |
592 | } | |
9f440b7b | 593 | |
2fde59d9 | 594 | set_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status); |
9f440b7b AS |
595 | exit: |
596 | return ret; | |
597 | } | |
598 | ||
0de8aace | 599 | /** |
9f440b7b AS |
600 | * brcmf_p2p_escan() - initiate a P2P scan. |
601 | * | |
602 | * @p2p: P2P specific data. | |
603 | * @num_chans: number of channels to scan. | |
604 | * @chanspecs: channel parameters for @num_chans channels. | |
605 | * @search_state: P2P discover state to use. | |
606 | * @action: scan action to pass to firmware. | |
607 | * @bss_type: type of P2P bss. | |
608 | */ | |
609 | static s32 brcmf_p2p_escan(struct brcmf_p2p_info *p2p, u32 num_chans, | |
610 | u16 chanspecs[], s32 search_state, u16 action, | |
611 | enum p2p_bss_type bss_type) | |
612 | { | |
613 | s32 ret = 0; | |
614 | s32 memsize = offsetof(struct brcmf_p2p_scan_le, | |
615 | eparams.params_le.channel_list); | |
616 | s32 nprobes; | |
617 | s32 active; | |
618 | u32 i; | |
619 | u8 *memblk; | |
620 | struct brcmf_cfg80211_vif *vif; | |
621 | struct brcmf_p2p_scan_le *p2p_params; | |
622 | struct brcmf_scan_params_le *sparams; | |
623 | struct brcmf_ssid ssid; | |
624 | ||
9f440b7b AS |
625 | memsize += num_chans * sizeof(__le16); |
626 | memblk = kzalloc(memsize, GFP_KERNEL); | |
627 | if (!memblk) | |
628 | return -ENOMEM; | |
629 | ||
630 | vif = p2p->bss_idx[bss_type].vif; | |
631 | if (vif == NULL) { | |
632 | brcmf_err("no vif for bss type %d\n", bss_type); | |
633 | ret = -EINVAL; | |
634 | goto exit; | |
635 | } | |
636 | ||
637 | switch (search_state) { | |
638 | case WL_P2P_DISC_ST_SEARCH: | |
639 | /* | |
640 | * If we in SEARCH STATE, we don't need to set SSID explictly | |
641 | * because dongle use P2P WILDCARD internally by default | |
642 | */ | |
643 | /* use null ssid */ | |
644 | ssid.SSID_len = 0; | |
645 | memset(ssid.SSID, 0, sizeof(ssid.SSID)); | |
646 | break; | |
647 | case WL_P2P_DISC_ST_SCAN: | |
648 | /* | |
649 | * wpa_supplicant has p2p_find command with type social or | |
650 | * progressive. For progressive, we need to set the ssid to | |
651 | * P2P WILDCARD because we just do broadcast scan unless | |
652 | * setting SSID. | |
653 | */ | |
654 | ssid.SSID_len = BRCMF_P2P_WILDCARD_SSID_LEN; | |
655 | memcpy(ssid.SSID, BRCMF_P2P_WILDCARD_SSID, ssid.SSID_len); | |
656 | break; | |
657 | default: | |
658 | brcmf_err(" invalid search state %d\n", search_state); | |
659 | ret = -EINVAL; | |
660 | goto exit; | |
661 | } | |
662 | ||
663 | brcmf_p2p_set_discover_state(vif->ifp, search_state, 0, 0); | |
664 | ||
665 | /* | |
666 | * set p2p scan parameters. | |
667 | */ | |
668 | p2p_params = (struct brcmf_p2p_scan_le *)memblk; | |
669 | p2p_params->type = 'E'; | |
670 | ||
671 | /* determine the scan engine parameters */ | |
672 | sparams = &p2p_params->eparams.params_le; | |
673 | sparams->bss_type = DOT11_BSSTYPE_ANY; | |
674 | if (p2p->cfg->active_scan) | |
675 | sparams->scan_type = 0; | |
676 | else | |
677 | sparams->scan_type = 1; | |
678 | ||
679 | memset(&sparams->bssid, 0xFF, ETH_ALEN); | |
680 | if (ssid.SSID_len) | |
681 | memcpy(sparams->ssid_le.SSID, ssid.SSID, ssid.SSID_len); | |
682 | sparams->ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len); | |
683 | sparams->home_time = cpu_to_le32(P2PAPI_SCAN_HOME_TIME_MS); | |
684 | ||
685 | /* | |
686 | * SOCIAL_CHAN_CNT + 1 takes care of the Progressive scan | |
687 | * supported by the supplicant. | |
688 | */ | |
689 | if (num_chans == SOCIAL_CHAN_CNT || num_chans == (SOCIAL_CHAN_CNT + 1)) | |
690 | active = P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS; | |
691 | else if (num_chans == AF_PEER_SEARCH_CNT) | |
692 | active = P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS; | |
693 | else if (wl_get_vif_state_all(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED)) | |
694 | active = -1; | |
695 | else | |
696 | active = P2PAPI_SCAN_DWELL_TIME_MS; | |
697 | ||
698 | /* Override scan params to find a peer for a connection */ | |
699 | if (num_chans == 1) { | |
700 | active = WL_SCAN_CONNECT_DWELL_TIME_MS; | |
18e2f61d | 701 | /* WAR to sync with presence period of VSDB GO. |
9f440b7b AS |
702 | * send probe request more frequently |
703 | */ | |
704 | nprobes = active / WL_SCAN_JOIN_PROBE_INTERVAL_MS; | |
705 | } else { | |
706 | nprobes = active / P2PAPI_SCAN_NPROBS_TIME_MS; | |
707 | } | |
708 | ||
709 | if (nprobes <= 0) | |
710 | nprobes = 1; | |
711 | ||
712 | brcmf_dbg(INFO, "nprobes # %d, active_time %d\n", nprobes, active); | |
713 | sparams->active_time = cpu_to_le32(active); | |
714 | sparams->nprobes = cpu_to_le32(nprobes); | |
715 | sparams->passive_time = cpu_to_le32(-1); | |
716 | sparams->channel_num = cpu_to_le32(num_chans & | |
717 | BRCMF_SCAN_PARAMS_COUNT_MASK); | |
718 | for (i = 0; i < num_chans; i++) | |
719 | sparams->channel_list[i] = cpu_to_le16(chanspecs[i]); | |
720 | ||
721 | /* set the escan specific parameters */ | |
722 | p2p_params->eparams.version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION); | |
723 | p2p_params->eparams.action = cpu_to_le16(action); | |
724 | p2p_params->eparams.sync_id = cpu_to_le16(0x1234); | |
725 | /* perform p2p scan on primary device */ | |
726 | ret = brcmf_fil_bsscfg_data_set(vif->ifp, "p2p_scan", memblk, memsize); | |
727 | if (!ret) | |
728 | set_bit(BRCMF_SCAN_STATUS_BUSY, &p2p->cfg->scan_status); | |
729 | exit: | |
730 | kfree(memblk); | |
731 | return ret; | |
732 | } | |
733 | ||
734 | /** | |
735 | * brcmf_p2p_run_escan() - escan callback for peer-to-peer. | |
736 | * | |
737 | * @cfg: driver private data for cfg80211 interface. | |
738 | * @ndev: net device for which scan is requested. | |
739 | * @request: scan request from cfg80211. | |
740 | * @action: scan action. | |
741 | * | |
742 | * Determines the P2P discovery state based to scan request parameters and | |
743 | * validates the channels in the request. | |
744 | */ | |
745 | static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg, | |
746 | struct net_device *ndev, | |
747 | struct cfg80211_scan_request *request, | |
748 | u16 action) | |
749 | { | |
750 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
751 | s32 err = 0; | |
752 | s32 search_state = WL_P2P_DISC_ST_SCAN; | |
753 | struct brcmf_cfg80211_vif *vif; | |
754 | struct net_device *dev = NULL; | |
755 | int i, num_nodfs = 0; | |
756 | u16 *chanspecs; | |
757 | ||
758 | brcmf_dbg(TRACE, "enter\n"); | |
759 | ||
760 | if (!request) { | |
761 | err = -EINVAL; | |
762 | goto exit; | |
763 | } | |
764 | ||
765 | if (request->n_channels) { | |
766 | chanspecs = kcalloc(request->n_channels, sizeof(*chanspecs), | |
767 | GFP_KERNEL); | |
768 | if (!chanspecs) { | |
769 | err = -ENOMEM; | |
770 | goto exit; | |
771 | } | |
772 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; | |
773 | if (vif) | |
774 | dev = vif->wdev.netdev; | |
775 | if (request->n_channels == 3 && | |
776 | request->channels[0]->hw_value == SOCIAL_CHAN_1 && | |
777 | request->channels[1]->hw_value == SOCIAL_CHAN_2 && | |
778 | request->channels[2]->hw_value == SOCIAL_CHAN_3) { | |
779 | /* SOCIAL CHANNELS 1, 6, 11 */ | |
780 | search_state = WL_P2P_DISC_ST_SEARCH; | |
781 | brcmf_dbg(INFO, "P2P SEARCH PHASE START\n"); | |
782 | } else if (dev != NULL && vif->mode == WL_MODE_AP) { | |
783 | /* If you are already a GO, then do SEARCH only */ | |
784 | brcmf_dbg(INFO, "Already a GO. Do SEARCH Only\n"); | |
785 | search_state = WL_P2P_DISC_ST_SEARCH; | |
786 | } else { | |
787 | brcmf_dbg(INFO, "P2P SCAN STATE START\n"); | |
788 | } | |
789 | ||
790 | /* | |
791 | * no P2P scanning on passive or DFS channels. | |
792 | */ | |
793 | for (i = 0; i < request->n_channels; i++) { | |
794 | struct ieee80211_channel *chan = request->channels[i]; | |
795 | ||
796 | if (chan->flags & (IEEE80211_CHAN_RADAR | | |
797 | IEEE80211_CHAN_PASSIVE_SCAN)) | |
798 | continue; | |
799 | ||
800 | chanspecs[i] = channel_to_chanspec(chan); | |
801 | brcmf_dbg(INFO, "%d: chan=%d, channel spec=%x\n", | |
802 | num_nodfs, chan->hw_value, chanspecs[i]); | |
803 | num_nodfs++; | |
804 | } | |
805 | err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state, | |
806 | action, P2PAPI_BSSCFG_DEVICE); | |
807 | } | |
808 | exit: | |
809 | if (err) | |
810 | brcmf_err("error (%d)\n", err); | |
811 | return err; | |
812 | } | |
813 | ||
814 | /** | |
815 | * brcmf_p2p_scan_prep() - prepare scan based on request. | |
816 | * | |
817 | * @wiphy: wiphy device. | |
818 | * @request: scan request from cfg80211. | |
0f8ffe17 | 819 | * @vif: vif on which scan request is to be executed. |
9f440b7b AS |
820 | * |
821 | * Prepare the scan appropriately for type of scan requested. Overrides the | |
822 | * escan .run() callback for peer-to-peer scanning. | |
823 | */ | |
824 | int brcmf_p2p_scan_prep(struct wiphy *wiphy, | |
0f8ffe17 HM |
825 | struct cfg80211_scan_request *request, |
826 | struct brcmf_cfg80211_vif *vif) | |
9f440b7b AS |
827 | { |
828 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
829 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
830 | int err = 0; | |
831 | ||
832 | if (brcmf_p2p_scan_is_p2p_request(request)) { | |
833 | /* find my listen channel */ | |
834 | err = cfg80211_get_p2p_attr(request->ie, request->ie_len, | |
835 | IEEE80211_P2P_ATTR_LISTEN_CHANNEL, | |
836 | &p2p->listen_channel, 1); | |
837 | if (err < 0) | |
838 | return err; | |
839 | ||
840 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
841 | brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n"); | |
842 | ||
0de8aace | 843 | err = brcmf_p2p_enable_discovery(p2p); |
0f8ffe17 HM |
844 | if (err) |
845 | return err; | |
9f440b7b | 846 | |
0f8ffe17 | 847 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; |
9f440b7b | 848 | |
0f8ffe17 HM |
849 | /* override .run_escan() callback. */ |
850 | cfg->escan_info.run = brcmf_p2p_run_escan; | |
9f440b7b | 851 | } |
0f8ffe17 HM |
852 | err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBREQ_FLAG, |
853 | request->ie, request->ie_len); | |
9f440b7b AS |
854 | return err; |
855 | } | |
856 | ||
0de8aace | 857 | |
f2058dde HM |
858 | /** |
859 | * brcmf_p2p_discover_listen() - set firmware to discover listen state. | |
860 | * | |
861 | * @p2p: p2p device. | |
862 | * @freq: center frequency for discover listen. | |
863 | * #@duration: time in ms to stay on channel. | |
864 | * | |
865 | */ | |
866 | static s32 | |
867 | brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, | |
868 | struct ieee80211_channel *channel, u32 duration) | |
869 | { | |
870 | struct brcmf_cfg80211_vif *vif; | |
871 | s32 err = 0; | |
872 | u16 chanspec; | |
873 | ||
874 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
875 | if (!vif) { | |
876 | brcmf_err("Discovery is not set, so we have nothing to do\n"); | |
877 | err = -EPERM; | |
878 | goto exit; | |
879 | } | |
880 | ||
881 | if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status)) { | |
882 | brcmf_err("Previous LISTEN is not completed yet\n"); | |
883 | /* WAR: prevent cookie mismatch in wpa_supplicant return OK */ | |
884 | goto exit; | |
885 | } | |
886 | ||
887 | chanspec = channel_to_chanspec(channel); | |
888 | err = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_LISTEN, | |
889 | chanspec, (u16)duration); | |
890 | if (!err) { | |
891 | set_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status); | |
892 | p2p->remain_on_channel_cookie++; | |
893 | } | |
894 | exit: | |
895 | return err; | |
896 | } | |
897 | ||
898 | ||
0de8aace HM |
899 | /** |
900 | * brcmf_p2p_remain_on_channel() - put device on channel and stay there. | |
901 | * | |
902 | * @wiphy: wiphy device. | |
903 | * @channel: channel to stay on. | |
904 | * @duration: time in ms to remain on channel. | |
905 | * | |
906 | */ | |
907 | int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, | |
908 | struct ieee80211_channel *channel, | |
909 | unsigned int duration, u64 *cookie) | |
910 | { | |
911 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); | |
912 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
0de8aace | 913 | s32 err; |
0de8aace HM |
914 | |
915 | brcmf_dbg(TRACE, "Enter, channel: %d, duration ms (%d)\n", | |
916 | ieee80211_frequency_to_channel(channel->center_freq), | |
917 | duration); | |
918 | ||
0de8aace HM |
919 | err = brcmf_p2p_enable_discovery(p2p); |
920 | if (err) | |
921 | goto exit; | |
f2058dde | 922 | err = brcmf_p2p_discover_listen(p2p, channel, duration); |
0de8aace HM |
923 | if (err) |
924 | goto exit; | |
925 | ||
f2058dde HM |
926 | memcpy(&p2p->remain_on_channel, channel, sizeof(*channel)); |
927 | *cookie = p2p->remain_on_channel_cookie; | |
1ce3086c | 928 | cfg80211_ready_on_channel(wdev, *cookie, channel, duration, GFP_KERNEL); |
0de8aace HM |
929 | |
930 | exit: | |
0de8aace HM |
931 | return err; |
932 | } | |
933 | ||
934 | ||
935 | /** | |
936 | * brcmf_p2p_notify_listen_complete() - p2p listen has completed. | |
937 | * | |
938 | * @ifp: interfac control. | |
939 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
940 | * @data: payload of message. Not used. | |
941 | * | |
942 | */ | |
943 | int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp, | |
944 | const struct brcmf_event_msg *e, | |
945 | void *data) | |
946 | { | |
947 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
948 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
949 | ||
950 | brcmf_dbg(TRACE, "Enter\n"); | |
f2058dde | 951 | if (test_and_clear_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, |
0de8aace | 952 | &p2p->status)) |
f2058dde HM |
953 | cfg80211_remain_on_channel_expired(&ifp->vif->wdev, |
954 | p2p->remain_on_channel_cookie, | |
0de8aace HM |
955 | &p2p->remain_on_channel, |
956 | GFP_KERNEL); | |
957 | return 0; | |
958 | } | |
959 | ||
960 | ||
961 | /** | |
962 | * brcmf_p2p_cancel_remain_on_channel() - cancel p2p listen state. | |
963 | * | |
964 | * @ifp: interfac control. | |
965 | * | |
966 | */ | |
967 | void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp) | |
968 | { | |
969 | if (!ifp) | |
970 | return; | |
971 | brcmf_p2p_set_discover_state(ifp, WL_P2P_DISC_ST_SCAN, 0, 0); | |
972 | brcmf_p2p_notify_listen_complete(ifp, NULL, NULL); | |
973 | } | |
974 | ||
975 | ||
e6da3400 HM |
976 | /** |
977 | * brcmf_p2p_notify_action_frame_rx() - received action frame. | |
978 | * | |
979 | * @ifp: interfac control. | |
980 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
981 | * @data: payload of message, containing action frame data. | |
982 | * | |
983 | */ | |
984 | int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp, | |
985 | const struct brcmf_event_msg *e, | |
986 | void *data) | |
987 | { | |
988 | struct wireless_dev *wdev; | |
989 | u32 mgmt_frame_len = e->datalen - sizeof(struct brcmf_rx_mgmt_data); | |
990 | struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data; | |
991 | u16 chanspec = be16_to_cpu(rxframe->chanspec); | |
992 | struct ieee80211_mgmt *mgmt_frame; | |
993 | s32 err; | |
994 | s32 freq; | |
995 | u16 mgmt_type; | |
996 | ||
997 | /* Check if wpa_supplicant has registered for this frame */ | |
998 | brcmf_dbg(INFO, "ifp->vif->mgmt_rx_reg %04x\n", ifp->vif->mgmt_rx_reg); | |
999 | mgmt_type = (IEEE80211_STYPE_ACTION & IEEE80211_FCTL_STYPE) >> 4; | |
1000 | if ((ifp->vif->mgmt_rx_reg & BIT(mgmt_type)) == 0) | |
1001 | return 0; | |
1002 | ||
1003 | brcmf_p2p_print_actframe(false, (u8 *)(rxframe + 1), mgmt_frame_len); | |
1004 | ||
1005 | mgmt_frame = kzalloc(offsetof(struct ieee80211_mgmt, u) + | |
1006 | mgmt_frame_len, GFP_KERNEL); | |
1007 | if (!mgmt_frame) { | |
1008 | brcmf_err("No memory available for action frame\n"); | |
1009 | return -ENOMEM; | |
1010 | } | |
1011 | memcpy(mgmt_frame->da, ifp->mac_addr, ETH_ALEN); | |
1012 | err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mgmt_frame->bssid, | |
1013 | ETH_ALEN); | |
1014 | if (err < 0) | |
1015 | brcmf_err("BRCMF_C_GET_BSSID error %d\n", err); | |
1016 | memcpy(mgmt_frame->sa, e->addr, ETH_ALEN); | |
1017 | mgmt_frame->frame_control = cpu_to_le16(IEEE80211_STYPE_ACTION); | |
1018 | memcpy(&mgmt_frame->u, (u8 *)(rxframe + 1), mgmt_frame_len); | |
1019 | mgmt_frame_len += offsetof(struct ieee80211_mgmt, u); | |
1020 | ||
1021 | freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec), | |
1022 | CHSPEC_IS2G(chanspec) ? | |
1023 | IEEE80211_BAND_2GHZ : | |
1024 | IEEE80211_BAND_5GHZ); | |
1025 | wdev = ifp->ndev->ieee80211_ptr; | |
1026 | cfg80211_rx_mgmt(wdev, freq, 0, (u8 *)mgmt_frame, mgmt_frame_len, | |
1027 | GFP_ATOMIC); | |
1028 | ||
1029 | kfree(mgmt_frame); | |
1030 | return 0; | |
1031 | } | |
1032 | ||
1033 | ||
18e2f61d HM |
1034 | /** |
1035 | * brcmf_p2p_notify_action_tx_complete() - transmit action frame complete | |
1036 | * | |
1037 | * @ifp: interfac control. | |
1038 | * @e: event message. Not used, to make it usable for fweh event dispatcher. | |
1039 | * @data: not used. | |
1040 | * | |
1041 | */ | |
1042 | int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp, | |
1043 | const struct brcmf_event_msg *e, | |
1044 | void *data) | |
1045 | { | |
1046 | struct brcmf_cfg80211_info *cfg = ifp->drvr->config; | |
1047 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1048 | ||
1049 | brcmf_dbg(INFO, "Enter: status %d\n", e->status); | |
1050 | ||
1051 | if (e->status == BRCMF_E_STATUS_SUCCESS) | |
1052 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); | |
1053 | else | |
1054 | set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1055 | /* for now complete the receiver process here !! */ | |
1056 | complete(&p2p->send_af_done); | |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | ||
1062 | /** | |
1063 | * brcmf_p2p_tx_action_frame() - send action frame over fil. | |
1064 | * | |
1065 | * @p2p: p2p info struct for vif. | |
1066 | * @af_params: action frame data/info. | |
1067 | * | |
1068 | * Send an action frame immediately without doing channel synchronization. | |
1069 | * | |
1070 | * This function waits for a completion event before returning. | |
1071 | * The WLC_E_ACTION_FRAME_COMPLETE event will be received when the action | |
1072 | * frame is transmitted. | |
1073 | */ | |
1074 | static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p, | |
1075 | struct brcmf_fil_af_params_le *af_params) | |
1076 | { | |
1077 | struct brcmf_cfg80211_vif *vif; | |
1078 | s32 err = 0; | |
1079 | s32 timeout = 0; | |
1080 | ||
1081 | brcmf_dbg(TRACE, "Enter\n"); | |
1082 | ||
1083 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); | |
1084 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1085 | ||
1086 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1087 | err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe", af_params, | |
1088 | sizeof(*af_params)); | |
1089 | if (err) { | |
1090 | brcmf_err(" sending action frame has failed\n"); | |
1091 | goto exit; | |
1092 | } | |
1093 | ||
1094 | timeout = wait_for_completion_timeout(&p2p->send_af_done, | |
1095 | msecs_to_jiffies(P2P_AF_MAX_WAIT_TIME)); | |
1096 | ||
1097 | if (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status)) { | |
1098 | brcmf_dbg(TRACE, "TX action frame operation is success\n"); | |
1099 | } else { | |
1100 | err = -EIO; | |
1101 | brcmf_dbg(TRACE, "TX action frame operation has failed\n"); | |
1102 | } | |
1103 | /* clear status bit for action tx */ | |
1104 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); | |
1105 | clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); | |
1106 | ||
1107 | exit: | |
1108 | return err; | |
1109 | } | |
1110 | ||
1111 | ||
1112 | /** | |
1113 | * brcmf_p2p_pub_af_tx() - public action frame tx routine. | |
1114 | * | |
1115 | * @cfg: driver private data for cfg80211 interface. | |
1116 | * @af_params: action frame data/info. | |
1117 | * @config_af_params: configuration data for action frame. | |
1118 | * | |
1119 | * routine which transmits ation frame public type. | |
1120 | */ | |
1121 | static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg, | |
1122 | struct brcmf_fil_af_params_le *af_params, | |
1123 | struct brcmf_config_af_params *config_af_params) | |
1124 | { | |
1125 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1126 | struct brcmf_fil_action_frame_le *action_frame; | |
1127 | struct brcmf_p2p_pub_act_frame *act_frm; | |
1128 | s32 err = 0; | |
1129 | ||
1130 | action_frame = &af_params->action_frame; | |
1131 | act_frm = (struct brcmf_p2p_pub_act_frame *)(action_frame->data); | |
1132 | ||
1133 | switch (act_frm->subtype) { | |
1134 | case P2P_PAF_GON_REQ: | |
1135 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status set\n"); | |
1136 | set_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1137 | config_af_params->mpc_onoff = 0; | |
1138 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1139 | /* increase dwell time to wait for RESP frame */ | |
1140 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1141 | break; | |
1142 | case P2P_PAF_GON_RSP: | |
1143 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1144 | /* increase dwell time to wait for CONF frame */ | |
1145 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1146 | break; | |
1147 | case P2P_PAF_GON_CONF: | |
1148 | /* If we reached till GO Neg confirmation reset the filter */ | |
1149 | brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n"); | |
1150 | clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); | |
1151 | /* turn on mpc again if go nego is done */ | |
1152 | config_af_params->mpc_onoff = 1; | |
1153 | /* minimize dwell time */ | |
1154 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
1155 | break; | |
1156 | case P2P_PAF_INVITE_REQ: | |
1157 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1158 | /* increase dwell time */ | |
1159 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1160 | break; | |
1161 | case P2P_PAF_INVITE_RSP: | |
1162 | /* minimize dwell time */ | |
1163 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
1164 | break; | |
1165 | case P2P_PAF_DEVDIS_REQ: | |
1166 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1167 | /* maximize dwell time to wait for RESP frame */ | |
1168 | af_params->dwell_time = cpu_to_le32(P2P_AF_LONG_DWELL_TIME); | |
1169 | break; | |
1170 | case P2P_PAF_DEVDIS_RSP: | |
1171 | /* minimize dwell time */ | |
1172 | af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
1173 | break; | |
1174 | case P2P_PAF_PROVDIS_REQ: | |
1175 | config_af_params->mpc_onoff = 0; | |
1176 | p2p->next_af_subtype = act_frm->subtype + 1; | |
1177 | /* increase dwell time to wait for RESP frame */ | |
1178 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1179 | break; | |
1180 | case P2P_PAF_PROVDIS_RSP: | |
1181 | /* wpa_supplicant send go nego req right after prov disc */ | |
1182 | p2p->next_af_subtype = P2P_PAF_GON_REQ; | |
1183 | /* increase dwell time to MED level */ | |
1184 | af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1185 | break; | |
1186 | default: | |
1187 | brcmf_err("Unknown p2p pub act frame subtype: %d\n", | |
1188 | act_frm->subtype); | |
1189 | err = -EINVAL; | |
1190 | } | |
1191 | return err; | |
1192 | } | |
1193 | ||
1194 | /** | |
1195 | * brcmf_p2p_send_action_frame() - send action frame . | |
1196 | * | |
1197 | * @cfg: driver private data for cfg80211 interface. | |
1198 | * @ndev: net device to transmit on. | |
1199 | * @af_params: configuration data for action frame. | |
1200 | */ | |
1201 | bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg, | |
1202 | struct net_device *ndev, | |
1203 | struct brcmf_fil_af_params_le *af_params) | |
1204 | { | |
1205 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1206 | struct brcmf_fil_action_frame_le *action_frame; | |
1207 | struct brcmf_config_af_params config_af_params; | |
1208 | u16 action_frame_len; | |
1209 | bool ack = false; | |
1210 | u8 category; | |
1211 | u8 action; | |
1212 | s32 tx_retry; | |
1213 | ||
1214 | action_frame = &af_params->action_frame; | |
1215 | action_frame_len = le16_to_cpu(action_frame->len); | |
1216 | ||
1217 | brcmf_p2p_print_actframe(true, action_frame->data, action_frame_len); | |
1218 | ||
1219 | /* Add the default dwell time. Dwell time to stay off-channel */ | |
1220 | /* to wait for a response action frame after transmitting an */ | |
1221 | /* GO Negotiation action frame */ | |
1222 | af_params->dwell_time = cpu_to_le32(P2P_AF_DWELL_TIME); | |
1223 | ||
1224 | category = action_frame->data[DOT11_ACTION_CAT_OFF]; | |
1225 | action = action_frame->data[DOT11_ACTION_ACT_OFF]; | |
1226 | ||
1227 | /* initialize variables */ | |
1228 | p2p->next_af_subtype = P2P_PAF_SUBTYPE_INVALID; | |
1229 | ||
1230 | /* config parameters */ | |
1231 | config_af_params.max_tx_retry = P2P_AF_TX_MAX_RETRY; | |
1232 | config_af_params.mpc_onoff = -1; | |
1233 | ||
1234 | if (brcmf_p2p_is_pub_action(action_frame->data, action_frame_len)) { | |
1235 | /* p2p public action frame process */ | |
1236 | if (brcmf_p2p_pub_af_tx(cfg, af_params, &config_af_params)) { | |
1237 | /* Just send unknown subtype frame with */ | |
1238 | /* default parameters. */ | |
1239 | brcmf_err("P2P Public action frame, unknown subtype.\n"); | |
1240 | } | |
1241 | } else if (brcmf_p2p_is_gas_action(action_frame->data, | |
1242 | action_frame_len)) { | |
1243 | /* service discovery process */ | |
1244 | if (action == P2PSD_ACTION_ID_GAS_IREQ || | |
1245 | action == P2PSD_ACTION_ID_GAS_CREQ) { | |
1246 | /* save next af suptype to cancel */ | |
1247 | /* remaining dwell time */ | |
1248 | p2p->next_af_subtype = action + 1; | |
1249 | ||
1250 | af_params->dwell_time = | |
1251 | cpu_to_le32(P2P_AF_MED_DWELL_TIME); | |
1252 | } else if (action == P2PSD_ACTION_ID_GAS_IRESP || | |
1253 | action == P2PSD_ACTION_ID_GAS_CRESP) { | |
1254 | /* configure service discovery response frame */ | |
1255 | af_params->dwell_time = | |
1256 | cpu_to_le32(P2P_AF_MIN_DWELL_TIME); | |
1257 | } else { | |
1258 | brcmf_err("Unknown action type: %d\n", action); | |
1259 | goto exit; | |
1260 | } | |
1261 | } else if (brcmf_p2p_is_p2p_action(action_frame->data, | |
1262 | action_frame_len)) { | |
1263 | /* do not configure anything. it will be */ | |
1264 | /* sent with a default configuration */ | |
1265 | } else { | |
1266 | brcmf_err("Unknown Frame: category 0x%x, action 0x%x\n", | |
1267 | category, action); | |
1268 | return false; | |
1269 | } | |
1270 | ||
1271 | /* if scan is ongoing, abort current scan. */ | |
1272 | if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) | |
1273 | brcmf_abort_scanning(cfg); | |
1274 | ||
1275 | /* To make sure to send successfully action frame, turn off mpc */ | |
1276 | if (config_af_params.mpc_onoff == 0) | |
1277 | brcmf_set_mpc(ndev, 0); | |
1278 | ||
1279 | /* if failed, retry it. tx_retry_max value is configure by .... */ | |
1280 | tx_retry = 0; | |
1281 | while ((ack == false) && (tx_retry < config_af_params.max_tx_retry)) { | |
1282 | ack = !brcmf_p2p_tx_action_frame(p2p, af_params); | |
1283 | tx_retry++; | |
1284 | } | |
1285 | if (ack == false) | |
1286 | brcmf_err("Failed to send Action Frame(retry %d)\n", tx_retry); | |
1287 | ||
1288 | exit: | |
1289 | /* if all done, turn mpc on again */ | |
1290 | if (config_af_params.mpc_onoff == 1) | |
1291 | brcmf_set_mpc(ndev, 1); | |
1292 | ||
1293 | return ack; | |
1294 | } | |
1295 | ||
1296 | ||
9f440b7b AS |
1297 | /** |
1298 | * brcmf_p2p_attach() - attach for P2P. | |
1299 | * | |
1300 | * @cfg: driver private data for cfg80211 interface. | |
1301 | */ | |
2fde59d9 | 1302 | s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg) |
9f440b7b | 1303 | { |
2fde59d9 HM |
1304 | struct brcmf_if *pri_ifp; |
1305 | struct brcmf_if *p2p_ifp; | |
1306 | struct brcmf_cfg80211_vif *p2p_vif; | |
9f440b7b | 1307 | struct brcmf_p2p_info *p2p; |
2fde59d9 HM |
1308 | struct brcmf_pub *drvr; |
1309 | s32 bssidx; | |
1310 | s32 err = 0; | |
9f440b7b AS |
1311 | |
1312 | p2p = &cfg->p2p; | |
9f440b7b | 1313 | p2p->cfg = cfg; |
2fde59d9 HM |
1314 | |
1315 | drvr = cfg->pub; | |
1316 | ||
1317 | pri_ifp = drvr->iflist[0]; | |
1318 | p2p_ifp = drvr->iflist[1]; | |
1319 | ||
1320 | p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif = pri_ifp->vif; | |
1321 | ||
1322 | if (p2p_ifp) { | |
dded3d53 | 1323 | p2p_vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_P2P_DEVICE, |
2fde59d9 HM |
1324 | false); |
1325 | if (IS_ERR(p2p_vif)) { | |
1326 | brcmf_err("could not create discovery vif\n"); | |
1327 | err = -ENOMEM; | |
1328 | goto exit; | |
1329 | } | |
1330 | ||
1331 | p2p_vif->ifp = p2p_ifp; | |
1332 | p2p_ifp->vif = p2p_vif; | |
1333 | p2p_vif->wdev.netdev = p2p_ifp->ndev; | |
1334 | p2p_ifp->ndev->ieee80211_ptr = &p2p_vif->wdev; | |
1335 | SET_NETDEV_DEV(p2p_ifp->ndev, wiphy_dev(cfg->wiphy)); | |
1336 | ||
1337 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif; | |
1338 | ||
1339 | brcmf_p2p_generate_bss_mac(p2p); | |
1340 | brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr); | |
1341 | ||
1342 | /* Initialize P2P Discovery in the firmware */ | |
1343 | err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); | |
1344 | if (err < 0) { | |
1345 | brcmf_err("set p2p_disc error\n"); | |
1346 | brcmf_free_vif(p2p_vif); | |
1347 | goto exit; | |
1348 | } | |
1349 | /* obtain bsscfg index for P2P discovery */ | |
1350 | err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx); | |
1351 | if (err < 0) { | |
1352 | brcmf_err("retrieving discover bsscfg index failed\n"); | |
1353 | brcmf_free_vif(p2p_vif); | |
1354 | goto exit; | |
1355 | } | |
1356 | /* Verify that firmware uses same bssidx as driver !! */ | |
1357 | if (p2p_ifp->bssidx != bssidx) { | |
1358 | brcmf_err("Incorrect bssidx=%d, compared to p2p_ifp->bssidx=%d\n", | |
1359 | bssidx, p2p_ifp->bssidx); | |
1360 | brcmf_free_vif(p2p_vif); | |
1361 | goto exit; | |
1362 | } | |
1363 | ||
1364 | init_completion(&p2p->send_af_done); | |
1365 | } | |
1366 | exit: | |
1367 | return err; | |
9f440b7b AS |
1368 | } |
1369 | ||
2fde59d9 | 1370 | |
9f440b7b AS |
1371 | /** |
1372 | * brcmf_p2p_detach() - detach P2P. | |
1373 | * | |
1374 | * @p2p: P2P specific data. | |
1375 | */ | |
1376 | void brcmf_p2p_detach(struct brcmf_p2p_info *p2p) | |
1377 | { | |
2fde59d9 HM |
1378 | struct brcmf_cfg80211_vif *vif; |
1379 | ||
1380 | vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; | |
1381 | if (vif != NULL) { | |
1382 | brcmf_p2p_cancel_remain_on_channel(vif->ifp); | |
0de8aace | 1383 | brcmf_p2p_deinit_discovery(p2p); |
2fde59d9 HM |
1384 | /* remove discovery interface */ |
1385 | brcmf_free_vif(vif); | |
1386 | p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; | |
0de8aace | 1387 | } |
9f440b7b AS |
1388 | /* just set it all to zero */ |
1389 | memset(p2p, 0, sizeof(*p2p)); | |
1390 | } | |
1391 | ||
7a5c1f64 HM |
1392 | /** |
1393 | * brcmf_p2p_get_current_chanspec() - Get current operation channel. | |
1394 | * | |
1395 | * @p2p: P2P specific data. | |
1396 | * @chanspec: chanspec to be returned. | |
1397 | */ | |
1398 | static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p, | |
1399 | u16 *chanspec) | |
d3c0b633 | 1400 | { |
7a5c1f64 | 1401 | struct brcmf_if *ifp; |
d3c0b633 | 1402 | struct brcmf_fil_chan_info_le ci; |
7a5c1f64 HM |
1403 | s32 err; |
1404 | ||
1405 | ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; | |
1406 | ||
1407 | *chanspec = 11 & WL_CHANSPEC_CHAN_MASK; | |
d3c0b633 | 1408 | |
d3c0b633 AS |
1409 | err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci)); |
1410 | if (!err) { | |
7a5c1f64 HM |
1411 | *chanspec = le32_to_cpu(ci.hw_channel) & WL_CHANSPEC_CHAN_MASK; |
1412 | if (*chanspec < CH_MAX_2G_CHANNEL) | |
1413 | *chanspec |= WL_CHANSPEC_BAND_2G; | |
d3c0b633 | 1414 | else |
7a5c1f64 HM |
1415 | *chanspec |= WL_CHANSPEC_BAND_5G; |
1416 | } | |
1417 | *chanspec |= WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE; | |
1418 | } | |
1419 | ||
1420 | /** | |
1421 | * Change a P2P Role. | |
1422 | * Parameters: | |
1423 | * @mac: MAC address of the BSS to change a role | |
1424 | * Returns 0 if success. | |
1425 | */ | |
1426 | int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg, | |
1427 | enum brcmf_fil_p2p_if_types if_type) | |
1428 | { | |
1429 | struct brcmf_p2p_info *p2p = &cfg->p2p; | |
1430 | struct brcmf_cfg80211_vif *vif; | |
1431 | struct brcmf_fil_p2p_if_le if_request; | |
1432 | s32 err; | |
1433 | u16 chanspec; | |
1434 | ||
1435 | brcmf_dbg(TRACE, "Enter\n"); | |
1436 | ||
1437 | vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; | |
1438 | if (!vif) { | |
1439 | brcmf_err("vif for P2PAPI_BSSCFG_PRIMARY does not exist\n"); | |
1440 | return -EPERM; | |
d3c0b633 | 1441 | } |
7a5c1f64 HM |
1442 | brcmf_notify_escan_complete(cfg, vif->ifp->ndev, true, true); |
1443 | vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; | |
1444 | if (!vif) { | |
1445 | brcmf_err("vif for P2PAPI_BSSCFG_CONNECTION does not exist\n"); | |
1446 | return -EPERM; | |
1447 | } | |
1448 | brcmf_set_mpc(vif->ifp->ndev, 0); | |
1449 | ||
1450 | /* In concurrency case, STA may be already associated in a particular */ | |
1451 | /* channel. so retrieve the current channel of primary interface and */ | |
1452 | /* then start the virtual interface on that. */ | |
1453 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
1454 | ||
1455 | if_request.type = cpu_to_le16((u16)if_type); | |
1456 | if_request.chspec = cpu_to_le16(chanspec); | |
1457 | memcpy(if_request.addr, p2p->int_addr, sizeof(if_request.addr)); | |
1458 | ||
1459 | brcmf_cfg80211_arm_vif_event(cfg, vif); | |
1460 | err = brcmf_fil_iovar_data_set(vif->ifp, "p2p_ifupd", &if_request, | |
1461 | sizeof(if_request)); | |
1462 | if (err) { | |
1463 | brcmf_err("p2p_ifupd FAILED, err=%d\n", err); | |
1464 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
1465 | return err; | |
1466 | } | |
1467 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_CHANGE, | |
1468 | msecs_to_jiffies(1500)); | |
1469 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
1470 | if (!err) { | |
1471 | brcmf_err("No BRCMF_E_IF_CHANGE event received\n"); | |
1472 | return -EIO; | |
1473 | } | |
1474 | ||
1475 | err = brcmf_fil_cmd_int_set(vif->ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
1476 | BRCMF_SCB_TIMEOUT_VALUE); | |
1477 | ||
1478 | return err; | |
1479 | } | |
1480 | ||
1481 | static int brcmf_p2p_request_p2p_if(struct brcmf_p2p_info *p2p, | |
1482 | struct brcmf_if *ifp, u8 ea[ETH_ALEN], | |
1483 | enum brcmf_fil_p2p_if_types iftype) | |
1484 | { | |
1485 | struct brcmf_fil_p2p_if_le if_request; | |
1486 | int err; | |
1487 | u16 chanspec; | |
1488 | ||
1489 | /* we need a default channel */ | |
1490 | brcmf_p2p_get_current_chanspec(p2p, &chanspec); | |
d3c0b633 AS |
1491 | |
1492 | /* fill the firmware request */ | |
1493 | memcpy(if_request.addr, ea, ETH_ALEN); | |
7ee2d926 | 1494 | if_request.type = cpu_to_le16((u16)iftype); |
d3c0b633 AS |
1495 | if_request.chspec = cpu_to_le16(chanspec); |
1496 | ||
1497 | err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request, | |
1498 | sizeof(if_request)); | |
1499 | if (err) | |
1500 | return err; | |
1501 | ||
d3c0b633 AS |
1502 | return err; |
1503 | } | |
1504 | ||
5f4f9f11 AS |
1505 | static int brcmf_p2p_disable_p2p_if(struct brcmf_cfg80211_vif *vif) |
1506 | { | |
1507 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
1508 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
1509 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
1510 | u8 *addr = vif->wdev.netdev->dev_addr; | |
1511 | ||
1512 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdis", addr, ETH_ALEN); | |
1513 | } | |
1514 | ||
1515 | static int brcmf_p2p_release_p2p_if(struct brcmf_cfg80211_vif *vif) | |
1516 | { | |
1517 | struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev); | |
1518 | struct net_device *pri_ndev = cfg_to_ndev(cfg); | |
1519 | struct brcmf_if *ifp = netdev_priv(pri_ndev); | |
1520 | u8 *addr = vif->wdev.netdev->dev_addr; | |
1521 | ||
1522 | return brcmf_fil_iovar_data_set(ifp, "p2p_ifdel", addr, ETH_ALEN); | |
1523 | } | |
1524 | ||
9f440b7b AS |
1525 | /** |
1526 | * brcmf_p2p_add_vif() - create a new P2P virtual interface. | |
1527 | * | |
1528 | * @wiphy: wiphy device of new interface. | |
1529 | * @name: name of the new interface. | |
1530 | * @type: nl80211 interface type. | |
1531 | * @flags: TBD | |
1532 | * @params: TBD | |
9f440b7b AS |
1533 | */ |
1534 | struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, | |
1535 | enum nl80211_iftype type, u32 *flags, | |
1536 | struct vif_params *params) | |
1537 | { | |
d3c0b633 AS |
1538 | struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); |
1539 | struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); | |
1540 | struct brcmf_cfg80211_vif *vif; | |
1541 | enum brcmf_fil_p2p_if_types iftype; | |
1542 | enum wl_mode mode; | |
1543 | int err; | |
1544 | ||
1545 | if (brcmf_cfg80211_vif_event_armed(cfg)) | |
1546 | return ERR_PTR(-EBUSY); | |
1547 | ||
9f440b7b | 1548 | brcmf_dbg(INFO, "adding vif \"%s\" (type=%d)\n", name, type); |
d3c0b633 AS |
1549 | |
1550 | switch (type) { | |
1551 | case NL80211_IFTYPE_P2P_CLIENT: | |
1552 | iftype = BRCMF_FIL_P2P_IF_CLIENT; | |
1553 | mode = WL_MODE_BSS; | |
1554 | break; | |
1555 | case NL80211_IFTYPE_P2P_GO: | |
1556 | iftype = BRCMF_FIL_P2P_IF_GO; | |
1557 | mode = WL_MODE_AP; | |
1558 | break; | |
1559 | default: | |
1560 | return ERR_PTR(-EOPNOTSUPP); | |
1561 | } | |
1562 | ||
1563 | vif = brcmf_alloc_vif(cfg, type, false); | |
7ee2d926 HM |
1564 | if (IS_ERR(vif)) |
1565 | return (struct wireless_dev *)vif; | |
d3c0b633 AS |
1566 | brcmf_cfg80211_arm_vif_event(cfg, vif); |
1567 | ||
7a5c1f64 HM |
1568 | err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, cfg->p2p.int_addr, |
1569 | iftype); | |
7ee2d926 HM |
1570 | if (err) { |
1571 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
d3c0b633 | 1572 | goto fail; |
7ee2d926 | 1573 | } |
d3c0b633 AS |
1574 | |
1575 | /* wait for firmware event */ | |
1576 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD, | |
1577 | msecs_to_jiffies(1500)); | |
1578 | brcmf_cfg80211_arm_vif_event(cfg, NULL); | |
1579 | if (!err) { | |
1580 | brcmf_err("timeout occurred\n"); | |
1581 | err = -EIO; | |
1582 | goto fail; | |
1583 | } | |
1584 | ||
1585 | /* interface created in firmware */ | |
1586 | ifp = vif->ifp; | |
1587 | if (!ifp) { | |
1588 | brcmf_err("no if pointer provided\n"); | |
1589 | err = -ENOENT; | |
7ee2d926 | 1590 | goto fail; |
d3c0b633 AS |
1591 | } |
1592 | ||
1593 | strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1); | |
1594 | brcmf_cfg80211_vif_complete(cfg); | |
7ee2d926 HM |
1595 | cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = vif; |
1596 | /* Disable firmware roaming for P2P interface */ | |
1597 | brcmf_fil_iovar_int_set(ifp, "roam_off", 1); | |
1598 | if (iftype == BRCMF_FIL_P2P_IF_GO) { | |
1599 | /* set station timeout for p2p */ | |
1600 | brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCB_TIMEOUT, | |
1601 | BRCMF_SCB_TIMEOUT_VALUE); | |
1602 | } | |
d3c0b633 AS |
1603 | return &ifp->vif->wdev; |
1604 | ||
1605 | fail: | |
1606 | brcmf_free_vif(vif); | |
1607 | return ERR_PTR(err); | |
9f440b7b AS |
1608 | } |
1609 | ||
1610 | /** | |
1611 | * brcmf_p2p_del_vif() - delete a P2P virtual interface. | |
1612 | * | |
1613 | * @wiphy: wiphy device of interface. | |
1614 | * @wdev: wireless device of interface. | |
1615 | * | |
1616 | * TODO: not yet supported. | |
1617 | */ | |
1618 | int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) | |
1619 | { | |
d3c0b633 | 1620 | struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); |
9f440b7b | 1621 | struct brcmf_cfg80211_vif *vif; |
5f4f9f11 AS |
1622 | unsigned long jiffie_timeout = msecs_to_jiffies(1500); |
1623 | bool wait_for_disable = false; | |
d3c0b633 | 1624 | int err; |
9f440b7b | 1625 | |
5f4f9f11 | 1626 | brcmf_dbg(TRACE, "delete P2P vif\n"); |
9f440b7b | 1627 | vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); |
d3c0b633 | 1628 | |
5f4f9f11 AS |
1629 | switch (vif->wdev.iftype) { |
1630 | case NL80211_IFTYPE_P2P_CLIENT: | |
1631 | if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state)) | |
1632 | wait_for_disable = true; | |
1633 | break; | |
1634 | ||
1635 | case NL80211_IFTYPE_P2P_GO: | |
1636 | if (!brcmf_p2p_disable_p2p_if(vif)) | |
1637 | wait_for_disable = true; | |
1638 | break; | |
1639 | ||
1640 | case NL80211_IFTYPE_P2P_DEVICE: | |
1641 | default: | |
1642 | return -ENOTSUPP; | |
1643 | break; | |
1644 | } | |
1645 | ||
1646 | if (wait_for_disable) | |
7ee2d926 HM |
1647 | wait_for_completion_timeout(&cfg->vif_disabled, |
1648 | msecs_to_jiffies(500)); | |
5f4f9f11 AS |
1649 | |
1650 | brcmf_vif_clear_mgmt_ies(vif); | |
d3c0b633 AS |
1651 | |
1652 | brcmf_cfg80211_arm_vif_event(cfg, vif); | |
5f4f9f11 | 1653 | err = brcmf_p2p_release_p2p_if(vif); |
7ee2d926 | 1654 | if (!err) { |
5f4f9f11 AS |
1655 | /* wait for firmware event */ |
1656 | err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_DEL, | |
1657 | jiffie_timeout); | |
7ee2d926 HM |
1658 | if (!err) |
1659 | err = -EIO; | |
1660 | else | |
1661 | err = 0; | |
1662 | } | |
d3c0b633 | 1663 | brcmf_cfg80211_arm_vif_event(cfg, NULL); |
5f4f9f11 | 1664 | brcmf_free_vif(vif); |
7ee2d926 | 1665 | cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; |
5f4f9f11 AS |
1666 | |
1667 | return err; | |
9f440b7b | 1668 | } |