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propogate_mnt: Handle the first propogated copy being a slave
[deliverable/linux.git] / drivers / net / ethernet / toshiba / ps3_gelic_wireless.c
1 /*
2 * PS3 gelic network driver.
3 *
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * Copyright 2007 Sony Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 #undef DEBUG
21
22 #include <linux/kernel.h>
23 #include <linux/module.h>
24 #include <linux/slab.h>
25
26 #include <linux/etherdevice.h>
27 #include <linux/ethtool.h>
28 #include <linux/if_vlan.h>
29
30 #include <linux/in.h>
31 #include <linux/ip.h>
32 #include <linux/tcp.h>
33 #include <linux/wireless.h>
34 #include <linux/ieee80211.h>
35 #include <linux/if_arp.h>
36 #include <linux/ctype.h>
37 #include <linux/string.h>
38 #include <net/iw_handler.h>
39
40 #include <linux/dma-mapping.h>
41 #include <net/checksum.h>
42 #include <asm/firmware.h>
43 #include <asm/ps3.h>
44 #include <asm/lv1call.h>
45
46 #include "ps3_gelic_net.h"
47 #include "ps3_gelic_wireless.h"
48
49
50 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
51 u8 *essid, size_t essid_len);
52 static int gelic_wl_try_associate(struct net_device *netdev);
53
54 /*
55 * tables
56 */
57
58 /* 802.11b/g channel to freq in MHz */
59 static const int channel_freq[] = {
60 2412, 2417, 2422, 2427, 2432,
61 2437, 2442, 2447, 2452, 2457,
62 2462, 2467, 2472, 2484
63 };
64 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
65
66 /* in bps */
67 static const int bitrate_list[] = {
68 1000000,
69 2000000,
70 5500000,
71 11000000,
72 6000000,
73 9000000,
74 12000000,
75 18000000,
76 24000000,
77 36000000,
78 48000000,
79 54000000
80 };
81 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
82
83 /*
84 * wpa2 support requires the hypervisor version 2.0 or later
85 */
86 static inline int wpa2_capable(void)
87 {
88 return 0 <= ps3_compare_firmware_version(2, 0, 0);
89 }
90
91 static inline int precise_ie(void)
92 {
93 return 0 <= ps3_compare_firmware_version(2, 2, 0);
94 }
95 /*
96 * post_eurus_cmd helpers
97 */
98 struct eurus_cmd_arg_info {
99 int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
100 int post_arg; /* command requires arg1, arg2 at GET_RESULT */
101 };
102
103 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
104 [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
105 [GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
106 [GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
107 [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
108 [GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
109 [GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
110 [GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
111 [GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1},
112 [GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
113 };
114
115 #ifdef DEBUG
116 static const char *cmdstr(enum gelic_eurus_command ix)
117 {
118 switch (ix) {
119 case GELIC_EURUS_CMD_ASSOC:
120 return "ASSOC";
121 case GELIC_EURUS_CMD_DISASSOC:
122 return "DISASSOC";
123 case GELIC_EURUS_CMD_START_SCAN:
124 return "SCAN";
125 case GELIC_EURUS_CMD_GET_SCAN:
126 return "GET SCAN";
127 case GELIC_EURUS_CMD_SET_COMMON_CFG:
128 return "SET_COMMON_CFG";
129 case GELIC_EURUS_CMD_GET_COMMON_CFG:
130 return "GET_COMMON_CFG";
131 case GELIC_EURUS_CMD_SET_WEP_CFG:
132 return "SET_WEP_CFG";
133 case GELIC_EURUS_CMD_GET_WEP_CFG:
134 return "GET_WEP_CFG";
135 case GELIC_EURUS_CMD_SET_WPA_CFG:
136 return "SET_WPA_CFG";
137 case GELIC_EURUS_CMD_GET_WPA_CFG:
138 return "GET_WPA_CFG";
139 case GELIC_EURUS_CMD_GET_RSSI_CFG:
140 return "GET_RSSI";
141 default:
142 break;
143 }
144 return "";
145 };
146 #else
147 static inline const char *cmdstr(enum gelic_eurus_command ix)
148 {
149 return "";
150 }
151 #endif
152
153 /* synchronously do eurus commands */
154 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
155 {
156 struct gelic_eurus_cmd *cmd;
157 struct gelic_card *card;
158 struct gelic_wl_info *wl;
159
160 u64 arg1, arg2;
161
162 pr_debug("%s: <-\n", __func__);
163 cmd = container_of(work, struct gelic_eurus_cmd, work);
164 BUG_ON(cmd_info[cmd->cmd].pre_arg &&
165 cmd_info[cmd->cmd].post_arg);
166 wl = cmd->wl;
167 card = port_to_card(wl_port(wl));
168
169 if (cmd_info[cmd->cmd].pre_arg) {
170 arg1 = (cmd->buffer) ?
171 ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
172 0;
173 arg2 = cmd->buf_size;
174 } else {
175 arg1 = 0;
176 arg2 = 0;
177 }
178 init_completion(&wl->cmd_done_intr);
179 pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
180 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
181 GELIC_LV1_POST_WLAN_CMD,
182 cmd->cmd, arg1, arg2,
183 &cmd->tag, &cmd->size);
184 if (cmd->status) {
185 complete(&cmd->done);
186 pr_info("%s: cmd issue failed\n", __func__);
187 return;
188 }
189
190 wait_for_completion(&wl->cmd_done_intr);
191
192 if (cmd_info[cmd->cmd].post_arg) {
193 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
194 arg2 = cmd->buf_size;
195 } else {
196 arg1 = 0;
197 arg2 = 0;
198 }
199
200 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
201 GELIC_LV1_GET_WLAN_CMD_RESULT,
202 cmd->tag, arg1, arg2,
203 &cmd->cmd_status, &cmd->size);
204 #ifdef DEBUG
205 if (cmd->status || cmd->cmd_status) {
206 pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
207 cmd->tag, arg1, arg2);
208 pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
209 __func__, cmd->status, cmd->cmd_status, cmd->size);
210 }
211 #endif
212 complete(&cmd->done);
213 pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
214 }
215
216 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
217 unsigned int eurus_cmd,
218 void *buffer,
219 unsigned int buf_size)
220 {
221 struct gelic_eurus_cmd *cmd;
222
223 /* allocate cmd */
224 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
225 if (!cmd)
226 return NULL;
227
228 /* initialize members */
229 cmd->cmd = eurus_cmd;
230 cmd->buffer = buffer;
231 cmd->buf_size = buf_size;
232 cmd->wl = wl;
233 INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
234 init_completion(&cmd->done);
235 queue_work(wl->eurus_cmd_queue, &cmd->work);
236
237 /* wait for command completion */
238 wait_for_completion(&cmd->done);
239
240 return cmd;
241 }
242
243 static u32 gelic_wl_get_link(struct net_device *netdev)
244 {
245 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
246 u32 ret;
247
248 pr_debug("%s: <-\n", __func__);
249 mutex_lock(&wl->assoc_stat_lock);
250 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
251 ret = 1;
252 else
253 ret = 0;
254 mutex_unlock(&wl->assoc_stat_lock);
255 pr_debug("%s: ->\n", __func__);
256 return ret;
257 }
258
259 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
260 {
261 union iwreq_data data;
262
263 memset(&data, 0, sizeof(data));
264 if (bssid)
265 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
266 data.ap_addr.sa_family = ARPHRD_ETHER;
267 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
268 &data, NULL);
269 }
270
271 /*
272 * wireless extension handlers and helpers
273 */
274
275 /* SIOGIWNAME */
276 static int gelic_wl_get_name(struct net_device *dev,
277 struct iw_request_info *info,
278 union iwreq_data *iwreq, char *extra)
279 {
280 strcpy(iwreq->name, "IEEE 802.11bg");
281 return 0;
282 }
283
284 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
285 {
286 struct gelic_card *card = port_to_card(wl_port(wl));
287 u64 ch_info_raw, tmp;
288 int status;
289
290 if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
291 status = lv1_net_control(bus_id(card), dev_id(card),
292 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
293 &ch_info_raw,
294 &tmp);
295 /* some fw versions may return error */
296 if (status) {
297 if (status != LV1_NO_ENTRY)
298 pr_info("%s: available ch unknown\n", __func__);
299 wl->ch_info = 0x07ff;/* 11 ch */
300 } else
301 /* 16 bits of MSB has available channels */
302 wl->ch_info = ch_info_raw >> 48;
303 }
304 }
305
306 /* SIOGIWRANGE */
307 static int gelic_wl_get_range(struct net_device *netdev,
308 struct iw_request_info *info,
309 union iwreq_data *iwreq, char *extra)
310 {
311 struct iw_point *point = &iwreq->data;
312 struct iw_range *range = (struct iw_range *)extra;
313 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
314 unsigned int i, chs;
315
316 pr_debug("%s: <-\n", __func__);
317 point->length = sizeof(struct iw_range);
318 memset(range, 0, sizeof(struct iw_range));
319
320 range->we_version_compiled = WIRELESS_EXT;
321 range->we_version_source = 22;
322
323 /* available channels and frequencies */
324 gelic_wl_get_ch_info(wl);
325
326 for (i = 0, chs = 0;
327 i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
328 if (wl->ch_info & (1 << i)) {
329 range->freq[chs].i = i + 1;
330 range->freq[chs].m = channel_freq[i];
331 range->freq[chs].e = 6;
332 chs++;
333 }
334 range->num_frequency = chs;
335 range->old_num_frequency = chs;
336 range->num_channels = chs;
337 range->old_num_channels = chs;
338
339 /* bitrates */
340 for (i = 0; i < NUM_BITRATES; i++)
341 range->bitrate[i] = bitrate_list[i];
342 range->num_bitrates = i;
343
344 /* signal levels */
345 range->max_qual.qual = 100; /* relative value */
346 range->max_qual.level = 100;
347 range->avg_qual.qual = 50;
348 range->avg_qual.level = 50;
349 range->sensitivity = 0;
350
351 /* Event capability */
352 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
353 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
354 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
355
356 /* encryption capability */
357 range->enc_capa = IW_ENC_CAPA_WPA |
358 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
359 IW_ENC_CAPA_4WAY_HANDSHAKE;
360 if (wpa2_capable())
361 range->enc_capa |= IW_ENC_CAPA_WPA2;
362 range->encoding_size[0] = 5; /* 40bit WEP */
363 range->encoding_size[1] = 13; /* 104bit WEP */
364 range->encoding_size[2] = 32; /* WPA-PSK */
365 range->num_encoding_sizes = 3;
366 range->max_encoding_tokens = GELIC_WEP_KEYS;
367
368 /* scan capability */
369 range->scan_capa = IW_SCAN_CAPA_ESSID;
370
371 pr_debug("%s: ->\n", __func__);
372 return 0;
373
374 }
375
376 /* SIOC{G,S}IWSCAN */
377 static int gelic_wl_set_scan(struct net_device *netdev,
378 struct iw_request_info *info,
379 union iwreq_data *wrqu, char *extra)
380 {
381 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
382 struct iw_scan_req *req;
383 u8 *essid = NULL;
384 size_t essid_len = 0;
385
386 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
387 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
388 req = (struct iw_scan_req*)extra;
389 essid = req->essid;
390 essid_len = req->essid_len;
391 pr_debug("%s: ESSID scan =%s\n", __func__, essid);
392 }
393 return gelic_wl_start_scan(wl, 1, essid, essid_len);
394 }
395
396 #define OUI_LEN 3
397 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
398 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
399
400 /*
401 * synthesize WPA/RSN IE data
402 * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
403 * for the format
404 */
405 static size_t gelic_wl_synthesize_ie(u8 *buf,
406 struct gelic_eurus_scan_info *scan)
407 {
408
409 const u8 *oui_header;
410 u8 *start = buf;
411 int rsn;
412 int ccmp;
413
414 pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
415 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
416 case GELIC_EURUS_SCAN_SEC_WPA:
417 rsn = 0;
418 break;
419 case GELIC_EURUS_SCAN_SEC_WPA2:
420 rsn = 1;
421 break;
422 default:
423 /* WEP or none. No IE returned */
424 return 0;
425 }
426
427 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
428 case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
429 ccmp = 0;
430 break;
431 case GELIC_EURUS_SCAN_SEC_WPA_AES:
432 ccmp = 1;
433 break;
434 default:
435 if (rsn) {
436 ccmp = 1;
437 pr_info("%s: no cipher info. defaulted to CCMP\n",
438 __func__);
439 } else {
440 ccmp = 0;
441 pr_info("%s: no cipher info. defaulted to TKIP\n",
442 __func__);
443 }
444 }
445
446 if (rsn)
447 oui_header = rsn_oui;
448 else
449 oui_header = wpa_oui;
450
451 /* element id */
452 if (rsn)
453 *buf++ = WLAN_EID_RSN;
454 else
455 *buf++ = WLAN_EID_VENDOR_SPECIFIC;
456
457 /* length filed; set later */
458 buf++;
459
460 /* wpa special header */
461 if (!rsn) {
462 memcpy(buf, wpa_oui, OUI_LEN);
463 buf += OUI_LEN;
464 *buf++ = 0x01;
465 }
466
467 /* version */
468 *buf++ = 0x01; /* version 1.0 */
469 *buf++ = 0x00;
470
471 /* group cipher */
472 memcpy(buf, oui_header, OUI_LEN);
473 buf += OUI_LEN;
474
475 if (ccmp)
476 *buf++ = 0x04; /* CCMP */
477 else
478 *buf++ = 0x02; /* TKIP */
479
480 /* pairwise key count always 1 */
481 *buf++ = 0x01;
482 *buf++ = 0x00;
483
484 /* pairwise key suit */
485 memcpy(buf, oui_header, OUI_LEN);
486 buf += OUI_LEN;
487 if (ccmp)
488 *buf++ = 0x04; /* CCMP */
489 else
490 *buf++ = 0x02; /* TKIP */
491
492 /* AKM count is 1 */
493 *buf++ = 0x01;
494 *buf++ = 0x00;
495
496 /* AKM suite is assumed as PSK*/
497 memcpy(buf, oui_header, OUI_LEN);
498 buf += OUI_LEN;
499 *buf++ = 0x02; /* PSK */
500
501 /* RSN capabilities is 0 */
502 *buf++ = 0x00;
503 *buf++ = 0x00;
504
505 /* set length field */
506 start[1] = (buf - start - 2);
507
508 pr_debug("%s: ->\n", __func__);
509 return buf - start;
510 }
511
512 struct ie_item {
513 u8 *data;
514 u8 len;
515 };
516
517 struct ie_info {
518 struct ie_item wpa;
519 struct ie_item rsn;
520 };
521
522 static void gelic_wl_parse_ie(u8 *data, size_t len,
523 struct ie_info *ie_info)
524 {
525 size_t data_left = len;
526 u8 *pos = data;
527 u8 item_len;
528 u8 item_id;
529
530 pr_debug("%s: data=%p len=%ld\n", __func__,
531 data, len);
532 memset(ie_info, 0, sizeof(struct ie_info));
533
534 while (2 <= data_left) {
535 item_id = *pos++;
536 item_len = *pos++;
537 data_left -= 2;
538
539 if (data_left < item_len)
540 break;
541
542 switch (item_id) {
543 case WLAN_EID_VENDOR_SPECIFIC:
544 if ((OUI_LEN + 1 <= item_len) &&
545 !memcmp(pos, wpa_oui, OUI_LEN) &&
546 pos[OUI_LEN] == 0x01) {
547 ie_info->wpa.data = pos - 2;
548 ie_info->wpa.len = item_len + 2;
549 }
550 break;
551 case WLAN_EID_RSN:
552 ie_info->rsn.data = pos - 2;
553 /* length includes the header */
554 ie_info->rsn.len = item_len + 2;
555 break;
556 default:
557 pr_debug("%s: ignore %#x,%d\n", __func__,
558 item_id, item_len);
559 break;
560 }
561 pos += item_len;
562 data_left -= item_len;
563 }
564 pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
565 ie_info->wpa.data, ie_info->wpa.len,
566 ie_info->rsn.data, ie_info->rsn.len);
567 }
568
569
570 /*
571 * translate the scan informations from hypervisor to a
572 * independent format
573 */
574 static char *gelic_wl_translate_scan(struct net_device *netdev,
575 struct iw_request_info *info,
576 char *ev,
577 char *stop,
578 struct gelic_wl_scan_info *network)
579 {
580 struct iw_event iwe;
581 struct gelic_eurus_scan_info *scan = network->hwinfo;
582 char *tmp;
583 u8 rate;
584 unsigned int i, j, len;
585 u8 buf[64]; /* arbitrary size large enough */
586
587 pr_debug("%s: <-\n", __func__);
588
589 /* first entry should be AP's mac address */
590 iwe.cmd = SIOCGIWAP;
591 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
592 memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
593 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
594
595 /* ESSID */
596 iwe.cmd = SIOCGIWESSID;
597 iwe.u.data.flags = 1;
598 iwe.u.data.length = strnlen(scan->essid, 32);
599 ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
600
601 /* FREQUENCY */
602 iwe.cmd = SIOCGIWFREQ;
603 iwe.u.freq.m = be16_to_cpu(scan->channel);
604 iwe.u.freq.e = 0; /* table value in MHz */
605 iwe.u.freq.i = 0;
606 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
607
608 /* RATES */
609 iwe.cmd = SIOCGIWRATE;
610 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
611 /* to stuff multiple values in one event */
612 tmp = ev + iwe_stream_lcp_len(info);
613 /* put them in ascendant order (older is first) */
614 i = 0;
615 j = 0;
616 pr_debug("%s: rates=%d rate=%d\n", __func__,
617 network->rate_len, network->rate_ext_len);
618 while (i < network->rate_len) {
619 if (j < network->rate_ext_len &&
620 ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
621 rate = scan->ext_rate[j++] & 0x7f;
622 else
623 rate = scan->rate[i++] & 0x7f;
624 iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
625 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
626 IW_EV_PARAM_LEN);
627 }
628 while (j < network->rate_ext_len) {
629 iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
630 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
631 IW_EV_PARAM_LEN);
632 }
633 /* Check if we added any rate */
634 if (iwe_stream_lcp_len(info) < (tmp - ev))
635 ev = tmp;
636
637 /* ENCODE */
638 iwe.cmd = SIOCGIWENCODE;
639 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
640 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
641 else
642 iwe.u.data.flags = IW_ENCODE_DISABLED;
643 iwe.u.data.length = 0;
644 ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
645
646 /* MODE */
647 iwe.cmd = SIOCGIWMODE;
648 if (be16_to_cpu(scan->capability) &
649 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
650 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
651 iwe.u.mode = IW_MODE_MASTER;
652 else
653 iwe.u.mode = IW_MODE_ADHOC;
654 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
655 }
656
657 /* QUAL */
658 iwe.cmd = IWEVQUAL;
659 iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
660 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
661 iwe.u.qual.level = be16_to_cpu(scan->rssi);
662 iwe.u.qual.qual = be16_to_cpu(scan->rssi);
663 iwe.u.qual.noise = 0;
664 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
665
666 /* RSN */
667 memset(&iwe, 0, sizeof(iwe));
668 if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
669 /* If wpa[2] capable station, synthesize IE and put it */
670 len = gelic_wl_synthesize_ie(buf, scan);
671 if (len) {
672 iwe.cmd = IWEVGENIE;
673 iwe.u.data.length = len;
674 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
675 }
676 } else {
677 /* this scan info has IE data */
678 struct ie_info ie_info;
679 size_t data_len;
680
681 data_len = be16_to_cpu(scan->size) - sizeof(*scan);
682
683 gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
684
685 if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
686 memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
687 iwe.cmd = IWEVGENIE;
688 iwe.u.data.length = ie_info.wpa.len;
689 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
690 }
691
692 if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
693 memset(&iwe, 0, sizeof(iwe));
694 memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
695 iwe.cmd = IWEVGENIE;
696 iwe.u.data.length = ie_info.rsn.len;
697 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
698 }
699 }
700
701 pr_debug("%s: ->\n", __func__);
702 return ev;
703 }
704
705
706 static int gelic_wl_get_scan(struct net_device *netdev,
707 struct iw_request_info *info,
708 union iwreq_data *wrqu, char *extra)
709 {
710 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
711 struct gelic_wl_scan_info *scan_info;
712 char *ev = extra;
713 char *stop = ev + wrqu->data.length;
714 int ret = 0;
715 unsigned long this_time = jiffies;
716
717 pr_debug("%s: <-\n", __func__);
718 if (mutex_lock_interruptible(&wl->scan_lock))
719 return -EAGAIN;
720
721 switch (wl->scan_stat) {
722 case GELIC_WL_SCAN_STAT_SCANNING:
723 /* If a scan in progress, caller should call me again */
724 ret = -EAGAIN;
725 goto out;
726 case GELIC_WL_SCAN_STAT_INIT:
727 /* last scan request failed or never issued */
728 ret = -ENODEV;
729 goto out;
730 case GELIC_WL_SCAN_STAT_GOT_LIST:
731 /* ok, use current list */
732 break;
733 }
734
735 list_for_each_entry(scan_info, &wl->network_list, list) {
736 if (wl->scan_age == 0 ||
737 time_after(scan_info->last_scanned + wl->scan_age,
738 this_time))
739 ev = gelic_wl_translate_scan(netdev, info,
740 ev, stop,
741 scan_info);
742 else
743 pr_debug("%s:entry too old\n", __func__);
744
745 if (stop - ev <= IW_EV_ADDR_LEN) {
746 ret = -E2BIG;
747 goto out;
748 }
749 }
750
751 wrqu->data.length = ev - extra;
752 wrqu->data.flags = 0;
753 out:
754 mutex_unlock(&wl->scan_lock);
755 pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
756 return ret;
757 }
758
759 #ifdef DEBUG
760 static void scan_list_dump(struct gelic_wl_info *wl)
761 {
762 struct gelic_wl_scan_info *scan_info;
763 int i;
764
765 i = 0;
766 list_for_each_entry(scan_info, &wl->network_list, list) {
767 pr_debug("%s: item %d\n", __func__, i++);
768 pr_debug("valid=%d eurusindex=%d last=%lx\n",
769 scan_info->valid, scan_info->eurus_index,
770 scan_info->last_scanned);
771 pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
772 scan_info->rate_len, scan_info->rate_ext_len,
773 scan_info->essid_len);
774 /* -- */
775 pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
776 pr_debug("essid=%s\n", scan_info->hwinfo->essid);
777 }
778 }
779 #endif
780
781 static int gelic_wl_set_auth(struct net_device *netdev,
782 struct iw_request_info *info,
783 union iwreq_data *data, char *extra)
784 {
785 struct iw_param *param = &data->param;
786 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
787 unsigned long irqflag;
788 int ret = 0;
789
790 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
791 spin_lock_irqsave(&wl->lock, irqflag);
792 switch (param->flags & IW_AUTH_INDEX) {
793 case IW_AUTH_WPA_VERSION:
794 if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
795 pr_debug("%s: NO WPA selected\n", __func__);
796 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
797 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
798 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
799 }
800 if (param->value & IW_AUTH_WPA_VERSION_WPA) {
801 pr_debug("%s: WPA version 1 selected\n", __func__);
802 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
803 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
804 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
805 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
806 }
807 if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
808 /*
809 * As the hypervisor may not tell the cipher
810 * information of the AP if it is WPA2,
811 * you will not decide suitable cipher from
812 * its beacon.
813 * You should have knowledge about the AP's
814 * cipher information in other method prior to
815 * the association.
816 */
817 if (!precise_ie())
818 pr_info("%s: WPA2 may not work\n", __func__);
819 if (wpa2_capable()) {
820 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
821 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
822 wl->pairwise_cipher_method =
823 GELIC_WL_CIPHER_AES;
824 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
825 } else
826 ret = -EINVAL;
827 }
828 break;
829
830 case IW_AUTH_CIPHER_PAIRWISE:
831 if (param->value &
832 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
833 pr_debug("%s: WEP selected\n", __func__);
834 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
835 }
836 if (param->value & IW_AUTH_CIPHER_TKIP) {
837 pr_debug("%s: TKIP selected\n", __func__);
838 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
839 }
840 if (param->value & IW_AUTH_CIPHER_CCMP) {
841 pr_debug("%s: CCMP selected\n", __func__);
842 wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
843 }
844 if (param->value & IW_AUTH_CIPHER_NONE) {
845 pr_debug("%s: no auth selected\n", __func__);
846 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
847 }
848 break;
849 case IW_AUTH_CIPHER_GROUP:
850 if (param->value &
851 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
852 pr_debug("%s: WEP selected\n", __func__);
853 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
854 }
855 if (param->value & IW_AUTH_CIPHER_TKIP) {
856 pr_debug("%s: TKIP selected\n", __func__);
857 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
858 }
859 if (param->value & IW_AUTH_CIPHER_CCMP) {
860 pr_debug("%s: CCMP selected\n", __func__);
861 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
862 }
863 if (param->value & IW_AUTH_CIPHER_NONE) {
864 pr_debug("%s: no auth selected\n", __func__);
865 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
866 }
867 break;
868 case IW_AUTH_80211_AUTH_ALG:
869 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
870 pr_debug("%s: shared key specified\n", __func__);
871 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
872 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
873 pr_debug("%s: open system specified\n", __func__);
874 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
875 } else
876 ret = -EINVAL;
877 break;
878
879 case IW_AUTH_WPA_ENABLED:
880 if (param->value) {
881 pr_debug("%s: WPA enabled\n", __func__);
882 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
883 } else {
884 pr_debug("%s: WPA disabled\n", __func__);
885 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
886 }
887 break;
888
889 case IW_AUTH_KEY_MGMT:
890 if (param->value & IW_AUTH_KEY_MGMT_PSK)
891 break;
892 /* intentionally fall through */
893 default:
894 ret = -EOPNOTSUPP;
895 break;
896 }
897
898 if (!ret)
899 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
900
901 spin_unlock_irqrestore(&wl->lock, irqflag);
902 pr_debug("%s: -> %d\n", __func__, ret);
903 return ret;
904 }
905
906 static int gelic_wl_get_auth(struct net_device *netdev,
907 struct iw_request_info *info,
908 union iwreq_data *iwreq, char *extra)
909 {
910 struct iw_param *param = &iwreq->param;
911 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
912 unsigned long irqflag;
913 int ret = 0;
914
915 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
916 spin_lock_irqsave(&wl->lock, irqflag);
917 switch (param->flags & IW_AUTH_INDEX) {
918 case IW_AUTH_WPA_VERSION:
919 switch (wl->wpa_level) {
920 case GELIC_WL_WPA_LEVEL_WPA:
921 param->value |= IW_AUTH_WPA_VERSION_WPA;
922 break;
923 case GELIC_WL_WPA_LEVEL_WPA2:
924 param->value |= IW_AUTH_WPA_VERSION_WPA2;
925 break;
926 default:
927 param->value |= IW_AUTH_WPA_VERSION_DISABLED;
928 }
929 break;
930
931 case IW_AUTH_80211_AUTH_ALG:
932 if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
933 param->value = IW_AUTH_ALG_SHARED_KEY;
934 else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
935 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
936 break;
937
938 case IW_AUTH_WPA_ENABLED:
939 switch (wl->wpa_level) {
940 case GELIC_WL_WPA_LEVEL_WPA:
941 case GELIC_WL_WPA_LEVEL_WPA2:
942 param->value = 1;
943 break;
944 default:
945 param->value = 0;
946 break;
947 }
948 break;
949 default:
950 ret = -EOPNOTSUPP;
951 }
952
953 spin_unlock_irqrestore(&wl->lock, irqflag);
954 pr_debug("%s: -> %d\n", __func__, ret);
955 return ret;
956 }
957
958 /* SIOC{S,G}IWESSID */
959 static int gelic_wl_set_essid(struct net_device *netdev,
960 struct iw_request_info *info,
961 union iwreq_data *data, char *extra)
962 {
963 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
964 unsigned long irqflag;
965
966 pr_debug("%s: <- l=%d f=%d\n", __func__,
967 data->essid.length, data->essid.flags);
968 if (IW_ESSID_MAX_SIZE < data->essid.length)
969 return -EINVAL;
970
971 spin_lock_irqsave(&wl->lock, irqflag);
972 if (data->essid.flags) {
973 wl->essid_len = data->essid.length;
974 memcpy(wl->essid, extra, wl->essid_len);
975 pr_debug("%s: essid = '%s'\n", __func__, extra);
976 set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
977 } else {
978 pr_debug("%s: ESSID any\n", __func__);
979 clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
980 }
981 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
982 spin_unlock_irqrestore(&wl->lock, irqflag);
983
984
985 gelic_wl_try_associate(netdev); /* FIXME */
986 pr_debug("%s: ->\n", __func__);
987 return 0;
988 }
989
990 static int gelic_wl_get_essid(struct net_device *netdev,
991 struct iw_request_info *info,
992 union iwreq_data *data, char *extra)
993 {
994 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
995 unsigned long irqflag;
996
997 pr_debug("%s: <-\n", __func__);
998 mutex_lock(&wl->assoc_stat_lock);
999 spin_lock_irqsave(&wl->lock, irqflag);
1000 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
1001 wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1002 memcpy(extra, wl->essid, wl->essid_len);
1003 data->essid.length = wl->essid_len;
1004 data->essid.flags = 1;
1005 } else
1006 data->essid.flags = 0;
1007
1008 mutex_unlock(&wl->assoc_stat_lock);
1009 spin_unlock_irqrestore(&wl->lock, irqflag);
1010 pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
1011
1012 return 0;
1013 }
1014
1015 /* SIO{S,G}IWENCODE */
1016 static int gelic_wl_set_encode(struct net_device *netdev,
1017 struct iw_request_info *info,
1018 union iwreq_data *data, char *extra)
1019 {
1020 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1021 struct iw_point *enc = &data->encoding;
1022 __u16 flags;
1023 unsigned long irqflag;
1024 int key_index, index_specified;
1025 int ret = 0;
1026
1027 pr_debug("%s: <-\n", __func__);
1028 flags = enc->flags & IW_ENCODE_FLAGS;
1029 key_index = enc->flags & IW_ENCODE_INDEX;
1030
1031 pr_debug("%s: key_index = %d\n", __func__, key_index);
1032 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1033 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1034
1035 if (GELIC_WEP_KEYS < key_index)
1036 return -EINVAL;
1037
1038 spin_lock_irqsave(&wl->lock, irqflag);
1039 if (key_index) {
1040 index_specified = 1;
1041 key_index--;
1042 } else {
1043 index_specified = 0;
1044 key_index = wl->current_key;
1045 }
1046
1047 if (flags & IW_ENCODE_NOKEY) {
1048 /* if just IW_ENCODE_NOKEY, change current key index */
1049 if (!flags && index_specified) {
1050 wl->current_key = key_index;
1051 goto done;
1052 }
1053
1054 if (flags & IW_ENCODE_DISABLED) {
1055 if (!index_specified) {
1056 /* disable encryption */
1057 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1058 wl->pairwise_cipher_method =
1059 GELIC_WL_CIPHER_NONE;
1060 /* invalidate all key */
1061 wl->key_enabled = 0;
1062 } else
1063 clear_bit(key_index, &wl->key_enabled);
1064 }
1065
1066 if (flags & IW_ENCODE_OPEN)
1067 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1068 if (flags & IW_ENCODE_RESTRICTED) {
1069 pr_info("%s: shared key mode enabled\n", __func__);
1070 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1071 }
1072 } else {
1073 if (IW_ENCODING_TOKEN_MAX < enc->length) {
1074 ret = -EINVAL;
1075 goto done;
1076 }
1077 wl->key_len[key_index] = enc->length;
1078 memcpy(wl->key[key_index], extra, enc->length);
1079 set_bit(key_index, &wl->key_enabled);
1080 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1081 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1082 }
1083 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1084 done:
1085 spin_unlock_irqrestore(&wl->lock, irqflag);
1086 pr_debug("%s: ->\n", __func__);
1087 return ret;
1088 }
1089
1090 static int gelic_wl_get_encode(struct net_device *netdev,
1091 struct iw_request_info *info,
1092 union iwreq_data *data, char *extra)
1093 {
1094 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1095 struct iw_point *enc = &data->encoding;
1096 unsigned long irqflag;
1097 unsigned int key_index, index_specified;
1098 int ret = 0;
1099
1100 pr_debug("%s: <-\n", __func__);
1101 key_index = enc->flags & IW_ENCODE_INDEX;
1102 pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1103 enc->flags, enc->pointer, enc->length, extra);
1104 if (GELIC_WEP_KEYS < key_index)
1105 return -EINVAL;
1106
1107 spin_lock_irqsave(&wl->lock, irqflag);
1108 if (key_index) {
1109 index_specified = 1;
1110 key_index--;
1111 } else {
1112 index_specified = 0;
1113 key_index = wl->current_key;
1114 }
1115
1116 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1117 switch (wl->auth_method) {
1118 case GELIC_EURUS_AUTH_OPEN:
1119 enc->flags = IW_ENCODE_OPEN;
1120 break;
1121 case GELIC_EURUS_AUTH_SHARED:
1122 enc->flags = IW_ENCODE_RESTRICTED;
1123 break;
1124 }
1125 } else
1126 enc->flags = IW_ENCODE_DISABLED;
1127
1128 if (test_bit(key_index, &wl->key_enabled)) {
1129 if (enc->length < wl->key_len[key_index]) {
1130 ret = -EINVAL;
1131 goto done;
1132 }
1133 enc->length = wl->key_len[key_index];
1134 memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1135 } else {
1136 enc->length = 0;
1137 enc->flags |= IW_ENCODE_NOKEY;
1138 }
1139 enc->flags |= key_index + 1;
1140 pr_debug("%s: -> flag=%x len=%d\n", __func__,
1141 enc->flags, enc->length);
1142
1143 done:
1144 spin_unlock_irqrestore(&wl->lock, irqflag);
1145 return ret;
1146 }
1147
1148 /* SIOC{S,G}IWAP */
1149 static int gelic_wl_set_ap(struct net_device *netdev,
1150 struct iw_request_info *info,
1151 union iwreq_data *data, char *extra)
1152 {
1153 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1154 unsigned long irqflag;
1155
1156 pr_debug("%s: <-\n", __func__);
1157 if (data->ap_addr.sa_family != ARPHRD_ETHER)
1158 return -EINVAL;
1159
1160 spin_lock_irqsave(&wl->lock, irqflag);
1161 if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1162 memcpy(wl->bssid, data->ap_addr.sa_data,
1163 ETH_ALEN);
1164 set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1165 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1166 pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1167 } else {
1168 pr_debug("%s: clear bssid\n", __func__);
1169 clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1170 eth_zero_addr(wl->bssid);
1171 }
1172 spin_unlock_irqrestore(&wl->lock, irqflag);
1173 pr_debug("%s: ->\n", __func__);
1174 return 0;
1175 }
1176
1177 static int gelic_wl_get_ap(struct net_device *netdev,
1178 struct iw_request_info *info,
1179 union iwreq_data *data, char *extra)
1180 {
1181 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1182 unsigned long irqflag;
1183
1184 pr_debug("%s: <-\n", __func__);
1185 mutex_lock(&wl->assoc_stat_lock);
1186 spin_lock_irqsave(&wl->lock, irqflag);
1187 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1188 data->ap_addr.sa_family = ARPHRD_ETHER;
1189 memcpy(data->ap_addr.sa_data, wl->active_bssid,
1190 ETH_ALEN);
1191 } else
1192 eth_zero_addr(data->ap_addr.sa_data);
1193
1194 spin_unlock_irqrestore(&wl->lock, irqflag);
1195 mutex_unlock(&wl->assoc_stat_lock);
1196 pr_debug("%s: ->\n", __func__);
1197 return 0;
1198 }
1199
1200 /* SIOC{S,G}IWENCODEEXT */
1201 static int gelic_wl_set_encodeext(struct net_device *netdev,
1202 struct iw_request_info *info,
1203 union iwreq_data *data, char *extra)
1204 {
1205 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1206 struct iw_point *enc = &data->encoding;
1207 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1208 __u16 alg;
1209 __u16 flags;
1210 unsigned long irqflag;
1211 int key_index;
1212 int ret = 0;
1213
1214 pr_debug("%s: <-\n", __func__);
1215 flags = enc->flags & IW_ENCODE_FLAGS;
1216 alg = ext->alg;
1217 key_index = enc->flags & IW_ENCODE_INDEX;
1218
1219 pr_debug("%s: key_index = %d\n", __func__, key_index);
1220 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1221 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1222 pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1223 pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1224
1225 if (GELIC_WEP_KEYS < key_index)
1226 return -EINVAL;
1227
1228 spin_lock_irqsave(&wl->lock, irqflag);
1229 if (key_index)
1230 key_index--;
1231 else
1232 key_index = wl->current_key;
1233
1234 if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1235 /* reques to change default key index */
1236 pr_debug("%s: request to change default key to %d\n",
1237 __func__, key_index);
1238 wl->current_key = key_index;
1239 goto done;
1240 }
1241
1242 if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1243 pr_debug("%s: alg disabled\n", __func__);
1244 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1245 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1246 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1247 wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1248 } else if (alg == IW_ENCODE_ALG_WEP) {
1249 pr_debug("%s: WEP requested\n", __func__);
1250 if (flags & IW_ENCODE_OPEN) {
1251 pr_debug("%s: open key mode\n", __func__);
1252 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1253 }
1254 if (flags & IW_ENCODE_RESTRICTED) {
1255 pr_debug("%s: shared key mode\n", __func__);
1256 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1257 }
1258 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1259 pr_info("%s: key is too long %d\n", __func__,
1260 ext->key_len);
1261 ret = -EINVAL;
1262 goto done;
1263 }
1264 /* OK, update the key */
1265 wl->key_len[key_index] = ext->key_len;
1266 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1267 memcpy(wl->key[key_index], ext->key, ext->key_len);
1268 set_bit(key_index, &wl->key_enabled);
1269 /* remember wep info changed */
1270 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1271 } else if (alg == IW_ENCODE_ALG_PMK) {
1272 if (ext->key_len != WPA_PSK_LEN) {
1273 pr_err("%s: PSK length wrong %d\n", __func__,
1274 ext->key_len);
1275 ret = -EINVAL;
1276 goto done;
1277 }
1278 memset(wl->psk, 0, sizeof(wl->psk));
1279 memcpy(wl->psk, ext->key, ext->key_len);
1280 wl->psk_len = ext->key_len;
1281 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1282 /* remember PSK configured */
1283 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1284 }
1285 done:
1286 spin_unlock_irqrestore(&wl->lock, irqflag);
1287 pr_debug("%s: ->\n", __func__);
1288 return ret;
1289 }
1290
1291 static int gelic_wl_get_encodeext(struct net_device *netdev,
1292 struct iw_request_info *info,
1293 union iwreq_data *data, char *extra)
1294 {
1295 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1296 struct iw_point *enc = &data->encoding;
1297 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1298 unsigned long irqflag;
1299 int key_index;
1300 int ret = 0;
1301 int max_key_len;
1302
1303 pr_debug("%s: <-\n", __func__);
1304
1305 max_key_len = enc->length - sizeof(struct iw_encode_ext);
1306 if (max_key_len < 0)
1307 return -EINVAL;
1308 key_index = enc->flags & IW_ENCODE_INDEX;
1309
1310 pr_debug("%s: key_index = %d\n", __func__, key_index);
1311 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1312 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1313
1314 if (GELIC_WEP_KEYS < key_index)
1315 return -EINVAL;
1316
1317 spin_lock_irqsave(&wl->lock, irqflag);
1318 if (key_index)
1319 key_index--;
1320 else
1321 key_index = wl->current_key;
1322
1323 memset(ext, 0, sizeof(struct iw_encode_ext));
1324 switch (wl->group_cipher_method) {
1325 case GELIC_WL_CIPHER_WEP:
1326 ext->alg = IW_ENCODE_ALG_WEP;
1327 enc->flags |= IW_ENCODE_ENABLED;
1328 break;
1329 case GELIC_WL_CIPHER_TKIP:
1330 ext->alg = IW_ENCODE_ALG_TKIP;
1331 enc->flags |= IW_ENCODE_ENABLED;
1332 break;
1333 case GELIC_WL_CIPHER_AES:
1334 ext->alg = IW_ENCODE_ALG_CCMP;
1335 enc->flags |= IW_ENCODE_ENABLED;
1336 break;
1337 case GELIC_WL_CIPHER_NONE:
1338 default:
1339 ext->alg = IW_ENCODE_ALG_NONE;
1340 enc->flags |= IW_ENCODE_NOKEY;
1341 break;
1342 }
1343
1344 if (!(enc->flags & IW_ENCODE_NOKEY)) {
1345 if (max_key_len < wl->key_len[key_index]) {
1346 ret = -E2BIG;
1347 goto out;
1348 }
1349 if (test_bit(key_index, &wl->key_enabled))
1350 memcpy(ext->key, wl->key[key_index],
1351 wl->key_len[key_index]);
1352 else
1353 pr_debug("%s: disabled key requested ix=%d\n",
1354 __func__, key_index);
1355 }
1356 out:
1357 spin_unlock_irqrestore(&wl->lock, irqflag);
1358 pr_debug("%s: ->\n", __func__);
1359 return ret;
1360 }
1361 /* SIOC{S,G}IWMODE */
1362 static int gelic_wl_set_mode(struct net_device *netdev,
1363 struct iw_request_info *info,
1364 union iwreq_data *data, char *extra)
1365 {
1366 __u32 mode = data->mode;
1367 int ret;
1368
1369 pr_debug("%s: <-\n", __func__);
1370 if (mode == IW_MODE_INFRA)
1371 ret = 0;
1372 else
1373 ret = -EOPNOTSUPP;
1374 pr_debug("%s: -> %d\n", __func__, ret);
1375 return ret;
1376 }
1377
1378 static int gelic_wl_get_mode(struct net_device *netdev,
1379 struct iw_request_info *info,
1380 union iwreq_data *data, char *extra)
1381 {
1382 __u32 *mode = &data->mode;
1383 pr_debug("%s: <-\n", __func__);
1384 *mode = IW_MODE_INFRA;
1385 pr_debug("%s: ->\n", __func__);
1386 return 0;
1387 }
1388
1389 /* SIOCGIWNICKN */
1390 static int gelic_wl_get_nick(struct net_device *net_dev,
1391 struct iw_request_info *info,
1392 union iwreq_data *data, char *extra)
1393 {
1394 strcpy(extra, "gelic_wl");
1395 data->data.length = strlen(extra);
1396 data->data.flags = 1;
1397 return 0;
1398 }
1399
1400
1401 /* --- */
1402
1403 static struct iw_statistics *gelic_wl_get_wireless_stats(
1404 struct net_device *netdev)
1405 {
1406
1407 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1408 struct gelic_eurus_cmd *cmd;
1409 struct iw_statistics *is;
1410 struct gelic_eurus_rssi_info *rssi;
1411 void *buf;
1412
1413 pr_debug("%s: <-\n", __func__);
1414
1415 buf = (void *)__get_free_page(GFP_KERNEL);
1416 if (!buf)
1417 return NULL;
1418
1419 is = &wl->iwstat;
1420 memset(is, 0, sizeof(*is));
1421 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1422 buf, sizeof(*rssi));
1423 if (cmd && !cmd->status && !cmd->cmd_status) {
1424 rssi = buf;
1425 is->qual.level = be16_to_cpu(rssi->rssi);
1426 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1427 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1428 } else
1429 /* not associated */
1430 is->qual.updated = IW_QUAL_ALL_INVALID;
1431
1432 kfree(cmd);
1433 free_page((unsigned long)buf);
1434 pr_debug("%s: ->\n", __func__);
1435 return is;
1436 }
1437
1438 /*
1439 * scanning helpers
1440 */
1441 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1442 u8 *essid, size_t essid_len)
1443 {
1444 struct gelic_eurus_cmd *cmd;
1445 int ret = 0;
1446 void *buf = NULL;
1447 size_t len;
1448
1449 pr_debug("%s: <- always=%d\n", __func__, always_scan);
1450 if (mutex_lock_interruptible(&wl->scan_lock))
1451 return -ERESTARTSYS;
1452
1453 /*
1454 * If already a scan in progress, do not trigger more
1455 */
1456 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1457 pr_debug("%s: scanning now\n", __func__);
1458 goto out;
1459 }
1460
1461 init_completion(&wl->scan_done);
1462 /*
1463 * If we have already a bss list, don't try to get new
1464 * unless we are doing an ESSID scan
1465 */
1466 if ((!essid_len && !always_scan)
1467 && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1468 pr_debug("%s: already has the list\n", __func__);
1469 complete(&wl->scan_done);
1470 goto out;
1471 }
1472
1473 /* ESSID scan ? */
1474 if (essid_len && essid) {
1475 buf = (void *)__get_free_page(GFP_KERNEL);
1476 if (!buf) {
1477 ret = -ENOMEM;
1478 goto out;
1479 }
1480 len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1481 memset(buf, 0, len);
1482 memcpy(buf, essid, essid_len);
1483 pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1484 } else
1485 len = 0;
1486
1487 /*
1488 * issue start scan request
1489 */
1490 wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1491 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1492 buf, len);
1493 if (!cmd || cmd->status || cmd->cmd_status) {
1494 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1495 complete(&wl->scan_done);
1496 ret = -ENOMEM;
1497 goto out;
1498 }
1499 kfree(cmd);
1500 out:
1501 free_page((unsigned long)buf);
1502 mutex_unlock(&wl->scan_lock);
1503 pr_debug("%s: ->\n", __func__);
1504 return ret;
1505 }
1506
1507 /*
1508 * retrieve scan result from the chip (hypervisor)
1509 * this function is invoked by schedule work.
1510 */
1511 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1512 {
1513 struct gelic_eurus_cmd *cmd = NULL;
1514 struct gelic_wl_scan_info *target, *tmp;
1515 struct gelic_wl_scan_info *oldest = NULL;
1516 struct gelic_eurus_scan_info *scan_info;
1517 unsigned int scan_info_size;
1518 union iwreq_data data;
1519 unsigned long this_time = jiffies;
1520 unsigned int data_len, i, found, r;
1521 void *buf;
1522
1523 pr_debug("%s:start\n", __func__);
1524 mutex_lock(&wl->scan_lock);
1525
1526 buf = (void *)__get_free_page(GFP_KERNEL);
1527 if (!buf) {
1528 pr_info("%s: scan buffer alloc failed\n", __func__);
1529 goto out;
1530 }
1531
1532 if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1533 /*
1534 * stop() may be called while scanning, ignore result
1535 */
1536 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1537 __func__, wl->scan_stat);
1538 goto out;
1539 }
1540
1541 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1542 buf, PAGE_SIZE);
1543 if (!cmd || cmd->status || cmd->cmd_status) {
1544 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1545 pr_info("%s:cmd failed\n", __func__);
1546 kfree(cmd);
1547 goto out;
1548 }
1549 data_len = cmd->size;
1550 pr_debug("%s: data_len = %d\n", __func__, data_len);
1551 kfree(cmd);
1552
1553 /* OK, bss list retrieved */
1554 wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1555
1556 /* mark all entries are old */
1557 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1558 target->valid = 0;
1559 /* expire too old entries */
1560 if (time_before(target->last_scanned + wl->scan_age,
1561 this_time)) {
1562 kfree(target->hwinfo);
1563 target->hwinfo = NULL;
1564 list_move_tail(&target->list, &wl->network_free_list);
1565 }
1566 }
1567
1568 /* put them in the network_list */
1569 for (i = 0, scan_info_size = 0, scan_info = buf;
1570 scan_info_size < data_len;
1571 i++, scan_info_size += be16_to_cpu(scan_info->size),
1572 scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1573 pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1574 be16_to_cpu(scan_info->size),
1575 &scan_info->bssid[2], scan_info);
1576
1577 /*
1578 * The wireless firmware may return invalid channel 0 and/or
1579 * invalid rate if the AP emits zero length SSID ie. As this
1580 * scan information is useless, ignore it
1581 */
1582 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1583 pr_debug("%s: invalid scan info\n", __func__);
1584 continue;
1585 }
1586
1587 found = 0;
1588 oldest = NULL;
1589 list_for_each_entry(target, &wl->network_list, list) {
1590 if (ether_addr_equal(&target->hwinfo->bssid[2],
1591 &scan_info->bssid[2])) {
1592 found = 1;
1593 pr_debug("%s: same BBS found scanned list\n",
1594 __func__);
1595 break;
1596 }
1597 if (!oldest ||
1598 (target->last_scanned < oldest->last_scanned))
1599 oldest = target;
1600 }
1601
1602 if (!found) {
1603 /* not found in the list */
1604 if (list_empty(&wl->network_free_list)) {
1605 /* expire oldest */
1606 target = oldest;
1607 } else {
1608 target = list_entry(wl->network_free_list.next,
1609 struct gelic_wl_scan_info,
1610 list);
1611 }
1612 }
1613
1614 /* update the item */
1615 target->last_scanned = this_time;
1616 target->valid = 1;
1617 target->eurus_index = i;
1618 kfree(target->hwinfo);
1619 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1620 GFP_KERNEL);
1621 if (!target->hwinfo)
1622 continue;
1623
1624 /* copy hw scan info */
1625 memcpy(target->hwinfo, scan_info, scan_info->size);
1626 target->essid_len = strnlen(scan_info->essid,
1627 sizeof(scan_info->essid));
1628 target->rate_len = 0;
1629 for (r = 0; r < 12; r++)
1630 if (scan_info->rate[r])
1631 target->rate_len++;
1632 if (8 < target->rate_len)
1633 pr_info("%s: AP returns %d rates\n", __func__,
1634 target->rate_len);
1635 target->rate_ext_len = 0;
1636 for (r = 0; r < 16; r++)
1637 if (scan_info->ext_rate[r])
1638 target->rate_ext_len++;
1639 list_move_tail(&target->list, &wl->network_list);
1640 }
1641 memset(&data, 0, sizeof(data));
1642 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1643 NULL);
1644 out:
1645 free_page((unsigned long)buf);
1646 complete(&wl->scan_done);
1647 mutex_unlock(&wl->scan_lock);
1648 pr_debug("%s:end\n", __func__);
1649 }
1650
1651 /*
1652 * Select an appropriate bss from current scan list regarding
1653 * current settings from userspace.
1654 * The caller must hold wl->scan_lock,
1655 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1656 */
1657 static void update_best(struct gelic_wl_scan_info **best,
1658 struct gelic_wl_scan_info *candid,
1659 int *best_weight,
1660 int *weight)
1661 {
1662 if (*best_weight < ++(*weight)) {
1663 *best_weight = *weight;
1664 *best = candid;
1665 }
1666 }
1667
1668 static
1669 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1670 {
1671 struct gelic_wl_scan_info *scan_info;
1672 struct gelic_wl_scan_info *best_bss;
1673 int weight, best_weight;
1674 u16 security;
1675
1676 pr_debug("%s: <-\n", __func__);
1677
1678 best_bss = NULL;
1679 best_weight = 0;
1680
1681 list_for_each_entry(scan_info, &wl->network_list, list) {
1682 pr_debug("%s: station %p\n", __func__, scan_info);
1683
1684 if (!scan_info->valid) {
1685 pr_debug("%s: station invalid\n", __func__);
1686 continue;
1687 }
1688
1689 /* If bss specified, check it only */
1690 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1691 if (ether_addr_equal(&scan_info->hwinfo->bssid[2],
1692 wl->bssid)) {
1693 best_bss = scan_info;
1694 pr_debug("%s: bssid matched\n", __func__);
1695 break;
1696 } else {
1697 pr_debug("%s: bssid unmached\n", __func__);
1698 continue;
1699 }
1700 }
1701
1702 weight = 0;
1703
1704 /* security */
1705 security = be16_to_cpu(scan_info->hwinfo->security) &
1706 GELIC_EURUS_SCAN_SEC_MASK;
1707 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1708 if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1709 update_best(&best_bss, scan_info,
1710 &best_weight, &weight);
1711 else
1712 continue;
1713 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1714 if (security == GELIC_EURUS_SCAN_SEC_WPA)
1715 update_best(&best_bss, scan_info,
1716 &best_weight, &weight);
1717 else
1718 continue;
1719 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1720 wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1721 if (security == GELIC_EURUS_SCAN_SEC_WEP)
1722 update_best(&best_bss, scan_info,
1723 &best_weight, &weight);
1724 else
1725 continue;
1726 }
1727
1728 /* If ESSID is set, check it */
1729 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1730 if ((scan_info->essid_len == wl->essid_len) &&
1731 !strncmp(wl->essid,
1732 scan_info->hwinfo->essid,
1733 scan_info->essid_len))
1734 update_best(&best_bss, scan_info,
1735 &best_weight, &weight);
1736 else
1737 continue;
1738 }
1739 }
1740
1741 #ifdef DEBUG
1742 pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1743 if (best_bss) {
1744 pr_debug("%s:addr=%pM\n", __func__,
1745 &best_bss->hwinfo->bssid[2]);
1746 }
1747 #endif
1748 return best_bss;
1749 }
1750
1751 /*
1752 * Setup WEP configuration to the chip
1753 * The caller must hold wl->scan_lock,
1754 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1755 */
1756 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1757 {
1758 unsigned int i;
1759 struct gelic_eurus_wep_cfg *wep;
1760 struct gelic_eurus_cmd *cmd;
1761 int wep104 = 0;
1762 int have_key = 0;
1763 int ret = 0;
1764
1765 pr_debug("%s: <-\n", __func__);
1766 /* we can assume no one should uses the buffer */
1767 wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1768 if (!wep)
1769 return -ENOMEM;
1770
1771 memset(wep, 0, sizeof(*wep));
1772
1773 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1774 pr_debug("%s: WEP mode\n", __func__);
1775 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1776 if (!test_bit(i, &wl->key_enabled))
1777 continue;
1778
1779 pr_debug("%s: key#%d enabled\n", __func__, i);
1780 have_key = 1;
1781 if (wl->key_len[i] == 13)
1782 wep104 = 1;
1783 else if (wl->key_len[i] != 5) {
1784 pr_info("%s: wrong wep key[%d]=%d\n",
1785 __func__, i, wl->key_len[i]);
1786 ret = -EINVAL;
1787 goto out;
1788 }
1789 memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1790 }
1791
1792 if (!have_key) {
1793 pr_info("%s: all wep key disabled\n", __func__);
1794 ret = -EINVAL;
1795 goto out;
1796 }
1797
1798 if (wep104) {
1799 pr_debug("%s: 104bit key\n", __func__);
1800 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1801 } else {
1802 pr_debug("%s: 40bit key\n", __func__);
1803 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1804 }
1805 } else {
1806 pr_debug("%s: NO encryption\n", __func__);
1807 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1808 }
1809
1810 /* issue wep setup */
1811 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1812 wep, sizeof(*wep));
1813 if (!cmd)
1814 ret = -ENOMEM;
1815 else if (cmd->status || cmd->cmd_status)
1816 ret = -ENXIO;
1817
1818 kfree(cmd);
1819 out:
1820 free_page((unsigned long)wep);
1821 pr_debug("%s: ->\n", __func__);
1822 return ret;
1823 }
1824
1825 #ifdef DEBUG
1826 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1827 {
1828 switch (sec) {
1829 case GELIC_EURUS_WPA_SEC_NONE:
1830 return "NONE";
1831 case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1832 return "WPA_TKIP_TKIP";
1833 case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1834 return "WPA_TKIP_AES";
1835 case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1836 return "WPA_AES_AES";
1837 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1838 return "WPA2_TKIP_TKIP";
1839 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1840 return "WPA2_TKIP_AES";
1841 case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1842 return "WPA2_AES_AES";
1843 }
1844 return "";
1845 };
1846 #endif
1847
1848 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1849 {
1850 struct gelic_eurus_wpa_cfg *wpa;
1851 struct gelic_eurus_cmd *cmd;
1852 u16 security;
1853 int ret = 0;
1854
1855 pr_debug("%s: <-\n", __func__);
1856 /* we can assume no one should uses the buffer */
1857 wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1858 if (!wpa)
1859 return -ENOMEM;
1860
1861 memset(wpa, 0, sizeof(*wpa));
1862
1863 if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1864 pr_info("%s: PSK not configured yet\n", __func__);
1865
1866 /* copy key */
1867 memcpy(wpa->psk, wl->psk, wl->psk_len);
1868
1869 /* set security level */
1870 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1871 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1872 security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1873 } else {
1874 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1875 precise_ie())
1876 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1877 else
1878 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1879 }
1880 } else {
1881 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1882 security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1883 } else {
1884 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1885 precise_ie())
1886 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1887 else
1888 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1889 }
1890 }
1891 wpa->security = cpu_to_be16(security);
1892
1893 /* PSK type */
1894 wpa->psk_type = cpu_to_be16(wl->psk_type);
1895 #ifdef DEBUG
1896 pr_debug("%s: sec=%s psktype=%s\n", __func__,
1897 wpasecstr(wpa->security),
1898 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1899 "BIN" : "passphrase");
1900 #if 0
1901 /*
1902 * don't enable here if you plan to submit
1903 * the debug log because this dumps your precious
1904 * passphrase/key.
1905 */
1906 pr_debug("%s: psk=%s\n", __func__,
1907 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1908 "N/A" : wpa->psk);
1909 #endif
1910 #endif
1911 /* issue wpa setup */
1912 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1913 wpa, sizeof(*wpa));
1914 if (!cmd)
1915 ret = -ENOMEM;
1916 else if (cmd->status || cmd->cmd_status)
1917 ret = -ENXIO;
1918 kfree(cmd);
1919 free_page((unsigned long)wpa);
1920 pr_debug("%s: --> %d\n", __func__, ret);
1921 return ret;
1922 }
1923
1924 /*
1925 * Start association. caller must hold assoc_stat_lock
1926 */
1927 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1928 struct gelic_wl_scan_info *bss)
1929 {
1930 struct gelic_eurus_cmd *cmd;
1931 struct gelic_eurus_common_cfg *common;
1932 int ret = 0;
1933 unsigned long rc;
1934
1935 pr_debug("%s: <-\n", __func__);
1936
1937 /* do common config */
1938 common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1939 if (!common)
1940 return -ENOMEM;
1941
1942 memset(common, 0, sizeof(*common));
1943 common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1944 common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1945
1946 common->scan_index = cpu_to_be16(bss->eurus_index);
1947 switch (wl->auth_method) {
1948 case GELIC_EURUS_AUTH_OPEN:
1949 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1950 break;
1951 case GELIC_EURUS_AUTH_SHARED:
1952 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1953 break;
1954 }
1955
1956 #ifdef DEBUG
1957 scan_list_dump(wl);
1958 #endif
1959 pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1960 be16_to_cpu(common->scan_index),
1961 be16_to_cpu(common->bss_type),
1962 be16_to_cpu(common->auth_method));
1963
1964 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1965 common, sizeof(*common));
1966 if (!cmd || cmd->status || cmd->cmd_status) {
1967 ret = -ENOMEM;
1968 kfree(cmd);
1969 goto out;
1970 }
1971 kfree(cmd);
1972
1973 /* WEP/WPA */
1974 switch (wl->wpa_level) {
1975 case GELIC_WL_WPA_LEVEL_NONE:
1976 /* If WEP or no security, setup WEP config */
1977 ret = gelic_wl_do_wep_setup(wl);
1978 break;
1979 case GELIC_WL_WPA_LEVEL_WPA:
1980 case GELIC_WL_WPA_LEVEL_WPA2:
1981 ret = gelic_wl_do_wpa_setup(wl);
1982 break;
1983 }
1984
1985 if (ret) {
1986 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1987 ret);
1988 ret = -EPERM;
1989 gelic_wl_send_iwap_event(wl, NULL);
1990 goto out;
1991 }
1992
1993 /* start association */
1994 init_completion(&wl->assoc_done);
1995 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
1996 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
1997 NULL, 0);
1998 if (!cmd || cmd->status || cmd->cmd_status) {
1999 pr_debug("%s: assoc request failed\n", __func__);
2000 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2001 kfree(cmd);
2002 ret = -ENOMEM;
2003 gelic_wl_send_iwap_event(wl, NULL);
2004 goto out;
2005 }
2006 kfree(cmd);
2007
2008 /* wait for connected event */
2009 rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2010
2011 if (!rc) {
2012 /* timeouted. Maybe key or cyrpt mode is wrong */
2013 pr_info("%s: connect timeout\n", __func__);
2014 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2015 NULL, 0);
2016 kfree(cmd);
2017 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2018 gelic_wl_send_iwap_event(wl, NULL);
2019 ret = -ENXIO;
2020 } else {
2021 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2022 /* copy bssid */
2023 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2024
2025 /* send connect event */
2026 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2027 pr_info("%s: connected\n", __func__);
2028 }
2029 out:
2030 free_page((unsigned long)common);
2031 pr_debug("%s: ->\n", __func__);
2032 return ret;
2033 }
2034
2035 /*
2036 * connected event
2037 */
2038 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2039 u64 event)
2040 {
2041 u64 desired_event = 0;
2042
2043 switch (wl->wpa_level) {
2044 case GELIC_WL_WPA_LEVEL_NONE:
2045 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2046 break;
2047 case GELIC_WL_WPA_LEVEL_WPA:
2048 case GELIC_WL_WPA_LEVEL_WPA2:
2049 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2050 break;
2051 }
2052
2053 if (desired_event == event) {
2054 pr_debug("%s: completed\n", __func__);
2055 complete(&wl->assoc_done);
2056 netif_carrier_on(port_to_netdev(wl_port(wl)));
2057 } else
2058 pr_debug("%s: event %#llx under wpa\n",
2059 __func__, event);
2060 }
2061
2062 /*
2063 * disconnect event
2064 */
2065 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2066 u64 event)
2067 {
2068 struct gelic_eurus_cmd *cmd;
2069 int lock;
2070
2071 /*
2072 * If we fall here in the middle of association,
2073 * associate_bss() should be waiting for complation of
2074 * wl->assoc_done.
2075 * As it waits with timeout, just leave assoc_done
2076 * uncompleted, then it terminates with timeout
2077 */
2078 if (!mutex_trylock(&wl->assoc_stat_lock)) {
2079 pr_debug("%s: already locked\n", __func__);
2080 lock = 0;
2081 } else {
2082 pr_debug("%s: obtain lock\n", __func__);
2083 lock = 1;
2084 }
2085
2086 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2087 kfree(cmd);
2088
2089 /* send disconnected event to the supplicant */
2090 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2091 gelic_wl_send_iwap_event(wl, NULL);
2092
2093 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2094 netif_carrier_off(port_to_netdev(wl_port(wl)));
2095
2096 if (lock)
2097 mutex_unlock(&wl->assoc_stat_lock);
2098 }
2099 /*
2100 * event worker
2101 */
2102 #ifdef DEBUG
2103 static const char *eventstr(enum gelic_lv1_wl_event event)
2104 {
2105 static char buf[32];
2106 char *ret;
2107 if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2108 ret = "EURUS_READY";
2109 else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2110 ret = "SCAN_COMPLETED";
2111 else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2112 ret = "DEAUTH";
2113 else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2114 ret = "BEACON_LOST";
2115 else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2116 ret = "CONNECTED";
2117 else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2118 ret = "WPA_CONNECTED";
2119 else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2120 ret = "WPA_ERROR";
2121 else {
2122 sprintf(buf, "Unknown(%#x)", event);
2123 ret = buf;
2124 }
2125 return ret;
2126 }
2127 #else
2128 static const char *eventstr(enum gelic_lv1_wl_event event)
2129 {
2130 return NULL;
2131 }
2132 #endif
2133 static void gelic_wl_event_worker(struct work_struct *work)
2134 {
2135 struct gelic_wl_info *wl;
2136 struct gelic_port *port;
2137 u64 event, tmp;
2138 int status;
2139
2140 pr_debug("%s:start\n", __func__);
2141 wl = container_of(work, struct gelic_wl_info, event_work.work);
2142 port = wl_port(wl);
2143 while (1) {
2144 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2145 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2146 &event, &tmp);
2147 if (status) {
2148 if (status != LV1_NO_ENTRY)
2149 pr_debug("%s:wlan event failed %d\n",
2150 __func__, status);
2151 /* got all events */
2152 pr_debug("%s:end\n", __func__);
2153 return;
2154 }
2155 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2156 switch (event) {
2157 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2158 gelic_wl_scan_complete_event(wl);
2159 break;
2160 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2161 case GELIC_LV1_WL_EVENT_DEAUTH:
2162 gelic_wl_disconnect_event(wl, event);
2163 break;
2164 case GELIC_LV1_WL_EVENT_CONNECTED:
2165 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2166 gelic_wl_connected_event(wl, event);
2167 break;
2168 default:
2169 break;
2170 }
2171 } /* while */
2172 }
2173 /*
2174 * association worker
2175 */
2176 static void gelic_wl_assoc_worker(struct work_struct *work)
2177 {
2178 struct gelic_wl_info *wl;
2179
2180 struct gelic_wl_scan_info *best_bss;
2181 int ret;
2182 unsigned long irqflag;
2183 u8 *essid;
2184 size_t essid_len;
2185
2186 wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2187
2188 mutex_lock(&wl->assoc_stat_lock);
2189
2190 if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2191 goto out;
2192
2193 spin_lock_irqsave(&wl->lock, irqflag);
2194 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2195 pr_debug("%s: assoc ESSID configured %s\n", __func__,
2196 wl->essid);
2197 essid = wl->essid;
2198 essid_len = wl->essid_len;
2199 } else {
2200 essid = NULL;
2201 essid_len = 0;
2202 }
2203 spin_unlock_irqrestore(&wl->lock, irqflag);
2204
2205 ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2206 if (ret == -ERESTARTSYS) {
2207 pr_debug("%s: scan start failed association\n", __func__);
2208 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2209 goto out;
2210 } else if (ret) {
2211 pr_info("%s: scan prerequisite failed\n", __func__);
2212 goto out;
2213 }
2214
2215 /*
2216 * Wait for bss scan completion
2217 * If we have scan list already, gelic_wl_start_scan()
2218 * returns OK and raises the complete. Thus,
2219 * it's ok to wait unconditionally here
2220 */
2221 wait_for_completion(&wl->scan_done);
2222
2223 pr_debug("%s: scan done\n", __func__);
2224 mutex_lock(&wl->scan_lock);
2225 if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2226 gelic_wl_send_iwap_event(wl, NULL);
2227 pr_info("%s: no scan list. association failed\n", __func__);
2228 goto scan_lock_out;
2229 }
2230
2231 /* find best matching bss */
2232 best_bss = gelic_wl_find_best_bss(wl);
2233 if (!best_bss) {
2234 gelic_wl_send_iwap_event(wl, NULL);
2235 pr_info("%s: no bss matched. association failed\n", __func__);
2236 goto scan_lock_out;
2237 }
2238
2239 /* ok, do association */
2240 ret = gelic_wl_associate_bss(wl, best_bss);
2241 if (ret)
2242 pr_info("%s: association failed %d\n", __func__, ret);
2243 scan_lock_out:
2244 mutex_unlock(&wl->scan_lock);
2245 out:
2246 mutex_unlock(&wl->assoc_stat_lock);
2247 }
2248 /*
2249 * Interrupt handler
2250 * Called from the ethernet interrupt handler
2251 * Processes wireless specific virtual interrupts only
2252 */
2253 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2254 {
2255 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2256
2257 if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2258 pr_debug("%s:cmd complete\n", __func__);
2259 complete(&wl->cmd_done_intr);
2260 }
2261
2262 if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2263 pr_debug("%s:event received\n", __func__);
2264 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2265 }
2266 }
2267
2268 /*
2269 * driver helpers
2270 */
2271 static const iw_handler gelic_wl_wext_handler[] =
2272 {
2273 IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2274 IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2275 IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2276 IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2277 IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2278 IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2279 IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2280 IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2281 IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2282 IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2283 IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2284 IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2285 IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2286 IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2287 IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2288 IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2289 IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2290 };
2291
2292 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2293 .num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2294 .standard = gelic_wl_wext_handler,
2295 .get_wireless_stats = gelic_wl_get_wireless_stats,
2296 };
2297
2298 static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2299 {
2300 struct net_device *netdev;
2301 struct gelic_port *port;
2302 struct gelic_wl_info *wl;
2303 unsigned int i;
2304
2305 pr_debug("%s:start\n", __func__);
2306 netdev = alloc_etherdev(sizeof(struct gelic_port) +
2307 sizeof(struct gelic_wl_info));
2308 pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2309 if (!netdev)
2310 return NULL;
2311
2312 strcpy(netdev->name, "wlan%d");
2313
2314 port = netdev_priv(netdev);
2315 port->netdev = netdev;
2316 port->card = card;
2317 port->type = GELIC_PORT_WIRELESS;
2318
2319 wl = port_wl(port);
2320 pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2321
2322 /* allocate scan list */
2323 wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2324 GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2325
2326 if (!wl->networks)
2327 goto fail_bss;
2328
2329 wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2330 if (!wl->eurus_cmd_queue)
2331 goto fail_cmd_workqueue;
2332
2333 wl->event_queue = create_singlethread_workqueue("gelic_event");
2334 if (!wl->event_queue)
2335 goto fail_event_workqueue;
2336
2337 INIT_LIST_HEAD(&wl->network_free_list);
2338 INIT_LIST_HEAD(&wl->network_list);
2339 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2340 list_add_tail(&wl->networks[i].list,
2341 &wl->network_free_list);
2342 init_completion(&wl->cmd_done_intr);
2343
2344 INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2345 INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2346 mutex_init(&wl->scan_lock);
2347 mutex_init(&wl->assoc_stat_lock);
2348
2349 init_completion(&wl->scan_done);
2350 /* for the case that no scan request is issued and stop() is called */
2351 complete(&wl->scan_done);
2352
2353 spin_lock_init(&wl->lock);
2354
2355 wl->scan_age = 5*HZ; /* FIXME */
2356
2357 /* buffer for receiving scanned list etc */
2358 BUILD_BUG_ON(PAGE_SIZE <
2359 sizeof(struct gelic_eurus_scan_info) *
2360 GELIC_EURUS_MAX_SCAN);
2361 pr_debug("%s:end\n", __func__);
2362 return netdev;
2363
2364 fail_event_workqueue:
2365 destroy_workqueue(wl->eurus_cmd_queue);
2366 fail_cmd_workqueue:
2367 kfree(wl->networks);
2368 fail_bss:
2369 free_netdev(netdev);
2370 pr_debug("%s:end error\n", __func__);
2371 return NULL;
2372
2373 }
2374
2375 static void gelic_wl_free(struct gelic_wl_info *wl)
2376 {
2377 struct gelic_wl_scan_info *scan_info;
2378 unsigned int i;
2379
2380 pr_debug("%s: <-\n", __func__);
2381
2382 pr_debug("%s: destroy queues\n", __func__);
2383 destroy_workqueue(wl->eurus_cmd_queue);
2384 destroy_workqueue(wl->event_queue);
2385
2386 scan_info = wl->networks;
2387 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2388 kfree(scan_info->hwinfo);
2389 kfree(wl->networks);
2390
2391 free_netdev(port_to_netdev(wl_port(wl)));
2392
2393 pr_debug("%s: ->\n", __func__);
2394 }
2395
2396 static int gelic_wl_try_associate(struct net_device *netdev)
2397 {
2398 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2399 int ret = -1;
2400 unsigned int i;
2401
2402 pr_debug("%s: <-\n", __func__);
2403
2404 /* check constraits for start association */
2405 /* for no access restriction AP */
2406 if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2407 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2408 &wl->stat))
2409 goto do_associate;
2410 else {
2411 pr_debug("%s: no wep, not configured\n", __func__);
2412 return ret;
2413 }
2414 }
2415
2416 /* for WEP, one of four keys should be set */
2417 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2418 /* one of keys set */
2419 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2420 if (test_bit(i, &wl->key_enabled))
2421 goto do_associate;
2422 }
2423 pr_debug("%s: WEP, but no key specified\n", __func__);
2424 return ret;
2425 }
2426
2427 /* for WPA[2], psk should be set */
2428 if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2429 (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2430 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2431 &wl->stat))
2432 goto do_associate;
2433 else {
2434 pr_debug("%s: AES/TKIP, but PSK not configured\n",
2435 __func__);
2436 return ret;
2437 }
2438 }
2439
2440 do_associate:
2441 ret = schedule_delayed_work(&wl->assoc_work, 0);
2442 pr_debug("%s: start association work %d\n", __func__, ret);
2443 return ret;
2444 }
2445
2446 /*
2447 * netdev handlers
2448 */
2449 static int gelic_wl_open(struct net_device *netdev)
2450 {
2451 struct gelic_card *card = netdev_card(netdev);
2452
2453 pr_debug("%s:->%p\n", __func__, netdev);
2454
2455 gelic_card_up(card);
2456
2457 /* try to associate */
2458 gelic_wl_try_associate(netdev);
2459
2460 netif_start_queue(netdev);
2461
2462 pr_debug("%s:<-\n", __func__);
2463 return 0;
2464 }
2465
2466 /*
2467 * reset state machine
2468 */
2469 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2470 {
2471 struct gelic_wl_scan_info *target;
2472 struct gelic_wl_scan_info *tmp;
2473
2474 /* empty scan list */
2475 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2476 list_move_tail(&target->list, &wl->network_free_list);
2477 }
2478 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2479
2480 /* clear configuration */
2481 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2482 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2483 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2484 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2485
2486 wl->key_enabled = 0;
2487 wl->current_key = 0;
2488
2489 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2490 wl->psk_len = 0;
2491
2492 wl->essid_len = 0;
2493 memset(wl->essid, 0, sizeof(wl->essid));
2494 memset(wl->bssid, 0, sizeof(wl->bssid));
2495 memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2496
2497 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2498
2499 memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2500 /* all status bit clear */
2501 wl->stat = 0;
2502 return 0;
2503 }
2504
2505 /*
2506 * Tell eurus to terminate association
2507 */
2508 static void gelic_wl_disconnect(struct net_device *netdev)
2509 {
2510 struct gelic_port *port = netdev_priv(netdev);
2511 struct gelic_wl_info *wl = port_wl(port);
2512 struct gelic_eurus_cmd *cmd;
2513
2514 /*
2515 * If scann process is running on chip,
2516 * further requests will be rejected
2517 */
2518 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2519 wait_for_completion_timeout(&wl->scan_done, HZ);
2520
2521 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2522 kfree(cmd);
2523 gelic_wl_send_iwap_event(wl, NULL);
2524 };
2525
2526 static int gelic_wl_stop(struct net_device *netdev)
2527 {
2528 struct gelic_port *port = netdev_priv(netdev);
2529 struct gelic_wl_info *wl = port_wl(port);
2530 struct gelic_card *card = netdev_card(netdev);
2531
2532 pr_debug("%s:<-\n", __func__);
2533
2534 /*
2535 * Cancel pending association work.
2536 * event work can run after netdev down
2537 */
2538 cancel_delayed_work(&wl->assoc_work);
2539
2540 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2541 gelic_wl_disconnect(netdev);
2542
2543 /* reset our state machine */
2544 gelic_wl_reset_state(wl);
2545
2546 netif_stop_queue(netdev);
2547
2548 gelic_card_down(card);
2549
2550 pr_debug("%s:->\n", __func__);
2551 return 0;
2552 }
2553
2554 /* -- */
2555
2556 static const struct net_device_ops gelic_wl_netdevice_ops = {
2557 .ndo_open = gelic_wl_open,
2558 .ndo_stop = gelic_wl_stop,
2559 .ndo_start_xmit = gelic_net_xmit,
2560 .ndo_set_rx_mode = gelic_net_set_multi,
2561 .ndo_change_mtu = gelic_net_change_mtu,
2562 .ndo_tx_timeout = gelic_net_tx_timeout,
2563 .ndo_set_mac_address = eth_mac_addr,
2564 .ndo_validate_addr = eth_validate_addr,
2565 #ifdef CONFIG_NET_POLL_CONTROLLER
2566 .ndo_poll_controller = gelic_net_poll_controller,
2567 #endif
2568 };
2569
2570 static const struct ethtool_ops gelic_wl_ethtool_ops = {
2571 .get_drvinfo = gelic_net_get_drvinfo,
2572 .get_link = gelic_wl_get_link,
2573 };
2574
2575 static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2576 {
2577 struct gelic_wl_info *wl;
2578 wl = port_wl(netdev_priv(netdev));
2579 BUG_ON(!wl);
2580 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2581
2582 netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2583 netdev->netdev_ops = &gelic_wl_netdevice_ops;
2584 netdev->wireless_data = &wl->wireless_data;
2585 netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2586 }
2587
2588 /*
2589 * driver probe/remove
2590 */
2591 int gelic_wl_driver_probe(struct gelic_card *card)
2592 {
2593 int ret;
2594 struct net_device *netdev;
2595
2596 pr_debug("%s:start\n", __func__);
2597
2598 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2599 return 0;
2600 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2601 return 0;
2602
2603 /* alloc netdevice for wireless */
2604 netdev = gelic_wl_alloc(card);
2605 if (!netdev)
2606 return -ENOMEM;
2607
2608 /* setup net_device structure */
2609 SET_NETDEV_DEV(netdev, &card->dev->core);
2610 gelic_wl_setup_netdev_ops(netdev);
2611
2612 /* setup some of net_device and register it */
2613 ret = gelic_net_setup_netdev(netdev, card);
2614 if (ret)
2615 goto fail_setup;
2616 card->netdev[GELIC_PORT_WIRELESS] = netdev;
2617
2618 /* add enable wireless interrupt */
2619 card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2620 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2621 /* to allow wireless commands while both interfaces are down */
2622 gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2623 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2624 pr_debug("%s:end\n", __func__);
2625 return 0;
2626
2627 fail_setup:
2628 gelic_wl_free(port_wl(netdev_port(netdev)));
2629
2630 return ret;
2631 }
2632
2633 int gelic_wl_driver_remove(struct gelic_card *card)
2634 {
2635 struct gelic_wl_info *wl;
2636 struct net_device *netdev;
2637
2638 pr_debug("%s:start\n", __func__);
2639
2640 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2641 return 0;
2642 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2643 return 0;
2644
2645 netdev = card->netdev[GELIC_PORT_WIRELESS];
2646 wl = port_wl(netdev_priv(netdev));
2647
2648 /* if the interface was not up, but associated */
2649 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2650 gelic_wl_disconnect(netdev);
2651
2652 complete(&wl->cmd_done_intr);
2653
2654 /* cancel all work queue */
2655 cancel_delayed_work(&wl->assoc_work);
2656 cancel_delayed_work(&wl->event_work);
2657 flush_workqueue(wl->eurus_cmd_queue);
2658 flush_workqueue(wl->event_queue);
2659
2660 unregister_netdev(netdev);
2661
2662 /* disable wireless interrupt */
2663 pr_debug("%s: disable intr\n", __func__);
2664 card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2665 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2666 /* free bss list, netdev*/
2667 gelic_wl_free(wl);
2668 pr_debug("%s:end\n", __func__);
2669 return 0;
2670 }
Linux kernel - Deliverables
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