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kmemtrace: SLOB hooks.
[linux-2.6/kmemtrace.git] / drivers / net / ps3_gelic_wireless.c
blob1dae1f2ed813e6dc2ebdf818d9e9ef6084422dfc
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
25 #include <linux/etherdevice.h>
26 #include <linux/ethtool.h>
27 #include <linux/if_vlan.h>
28
29 #include <linux/in.h>
30 #include <linux/ip.h>
31 #include <linux/tcp.h>
32 #include <linux/wireless.h>
33 #include <linux/ctype.h>
34 #include <linux/string.h>
35 #include <net/iw_handler.h>
36 #include <net/ieee80211.h>
37
38 #include <linux/dma-mapping.h>
39 #include <net/checksum.h>
40 #include <asm/firmware.h>
41 #include <asm/ps3.h>
42 #include <asm/lv1call.h>
43
44 #include "ps3_gelic_net.h"
45 #include "ps3_gelic_wireless.h"
46
47
48 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan);
49 static int gelic_wl_try_associate(struct net_device *netdev);
50
51 /*
52 * tables
53 */
54
55 /* 802.11b/g channel to freq in MHz */
56 static const int channel_freq[] = {
57 2412, 2417, 2422, 2427, 2432,
58 2437, 2442, 2447, 2452, 2457,
59 2462, 2467, 2472, 2484
60 };
61 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
62
63 /* in bps */
64 static const int bitrate_list[] = {
65 1000000,
66 2000000,
67 5500000,
68 11000000,
69 6000000,
70 9000000,
71 12000000,
72 18000000,
73 24000000,
74 36000000,
75 48000000,
76 54000000
77 };
78 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
79
80 /*
81 * wpa2 support requires the hypervisor version 2.0 or later
82 */
83 static inline int wpa2_capable(void)
84 {
85 return (0 <= ps3_compare_firmware_version(2, 0, 0));
86 }
87
88 static inline int precise_ie(void)
89 {
90 return (0 <= ps3_compare_firmware_version(2, 2, 0));
91 }
92 /*
93 * post_eurus_cmd helpers
94 */
95 struct eurus_cmd_arg_info {
96 int pre_arg; /* command requres arg1, arg2 at POST COMMAND */
97 int post_arg; /* command requires arg1, arg2 at GET_RESULT */
98 };
99
100 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
101 [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
102 [GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
103 [GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
104 [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
105 [GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
106 [GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
107 [GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
108 [GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
109 };
110
111 #ifdef DEBUG
112 static const char *cmdstr(enum gelic_eurus_command ix)
113 {
114 switch (ix) {
115 case GELIC_EURUS_CMD_ASSOC:
116 return "ASSOC";
117 case GELIC_EURUS_CMD_DISASSOC:
118 return "DISASSOC";
119 case GELIC_EURUS_CMD_START_SCAN:
120 return "SCAN";
121 case GELIC_EURUS_CMD_GET_SCAN:
122 return "GET SCAN";
123 case GELIC_EURUS_CMD_SET_COMMON_CFG:
124 return "SET_COMMON_CFG";
125 case GELIC_EURUS_CMD_GET_COMMON_CFG:
126 return "GET_COMMON_CFG";
127 case GELIC_EURUS_CMD_SET_WEP_CFG:
128 return "SET_WEP_CFG";
129 case GELIC_EURUS_CMD_GET_WEP_CFG:
130 return "GET_WEP_CFG";
131 case GELIC_EURUS_CMD_SET_WPA_CFG:
132 return "SET_WPA_CFG";
133 case GELIC_EURUS_CMD_GET_WPA_CFG:
134 return "GET_WPA_CFG";
135 case GELIC_EURUS_CMD_GET_RSSI_CFG:
136 return "GET_RSSI";
137 default:
138 break;
139 }
140 return "";
141 };
142 #else
143 static inline const char *cmdstr(enum gelic_eurus_command ix)
144 {
145 return "";
146 }
147 #endif
148
149 /* synchronously do eurus commands */
150 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
151 {
152 struct gelic_eurus_cmd *cmd;
153 struct gelic_card *card;
154 struct gelic_wl_info *wl;
155
156 u64 arg1, arg2;
157
158 pr_debug("%s: <-\n", __func__);
159 cmd = container_of(work, struct gelic_eurus_cmd, work);
160 BUG_ON(cmd_info[cmd->cmd].pre_arg &&
161 cmd_info[cmd->cmd].post_arg);
162 wl = cmd->wl;
163 card = port_to_card(wl_port(wl));
164
165 if (cmd_info[cmd->cmd].pre_arg) {
166 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
167 arg2 = cmd->buf_size;
168 } else {
169 arg1 = 0;
170 arg2 = 0;
171 }
172 init_completion(&wl->cmd_done_intr);
173 pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
174 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
175 GELIC_LV1_POST_WLAN_CMD,
176 cmd->cmd, arg1, arg2,
177 &cmd->tag, &cmd->size);
178 if (cmd->status) {
179 complete(&cmd->done);
180 pr_info("%s: cmd issue failed\n", __func__);
181 return;
182 }
183
184 wait_for_completion(&wl->cmd_done_intr);
185
186 if (cmd_info[cmd->cmd].post_arg) {
187 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
188 arg2 = cmd->buf_size;
189 } else {
190 arg1 = 0;
191 arg2 = 0;
192 }
193
194 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
195 GELIC_LV1_GET_WLAN_CMD_RESULT,
196 cmd->tag, arg1, arg2,
197 &cmd->cmd_status, &cmd->size);
198 #ifdef DEBUG
199 if (cmd->status || cmd->cmd_status) {
200 pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
201 cmd->tag, arg1, arg2);
202 pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
203 __func__, cmd->status, cmd->cmd_status, cmd->size);
204 }
205 #endif
206 complete(&cmd->done);
207 pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
208 }
209
210 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
211 unsigned int eurus_cmd,
212 void *buffer,
213 unsigned int buf_size)
214 {
215 struct gelic_eurus_cmd *cmd;
216
217 /* allocate cmd */
218 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
219 if (!cmd)
220 return NULL;
221
222 /* initialize members */
223 cmd->cmd = eurus_cmd;
224 cmd->buffer = buffer;
225 cmd->buf_size = buf_size;
226 cmd->wl = wl;
227 INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
228 init_completion(&cmd->done);
229 queue_work(wl->eurus_cmd_queue, &cmd->work);
230
231 /* wait for command completion */
232 wait_for_completion(&cmd->done);
233
234 return cmd;
235 }
236
237 static u32 gelic_wl_get_link(struct net_device *netdev)
238 {
239 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
240 u32 ret;
241
242 pr_debug("%s: <-\n", __func__);
243 down(&wl->assoc_stat_lock);
244 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
245 ret = 1;
246 else
247 ret = 0;
248 up(&wl->assoc_stat_lock);
249 pr_debug("%s: ->\n", __func__);
250 return ret;
251 }
252
253 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
254 {
255 union iwreq_data data;
256
257 memset(&data, 0, sizeof(data));
258 if (bssid)
259 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
260 data.ap_addr.sa_family = ARPHRD_ETHER;
261 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
262 &data, NULL);
263 }
264
265 /*
266 * wireless extension handlers and helpers
267 */
268
269 /* SIOGIWNAME */
270 static int gelic_wl_get_name(struct net_device *dev,
271 struct iw_request_info *info,
272 union iwreq_data *iwreq, char *extra)
273 {
274 strcpy(iwreq->name, "IEEE 802.11bg");
275 return 0;
276 }
277
278 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
279 {
280 struct gelic_card *card = port_to_card(wl_port(wl));
281 u64 ch_info_raw, tmp;
282 int status;
283
284 if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
285 status = lv1_net_control(bus_id(card), dev_id(card),
286 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
287 &ch_info_raw,
288 &tmp);
289 /* some fw versions may return error */
290 if (status) {
291 if (status != LV1_NO_ENTRY)
292 pr_info("%s: available ch unknown\n", __func__);
293 wl->ch_info = 0x07ff;/* 11 ch */
294 } else
295 /* 16 bits of MSB has available channels */
296 wl->ch_info = ch_info_raw >> 48;
297 }
298 return;
299 }
300
301 /* SIOGIWRANGE */
302 static int gelic_wl_get_range(struct net_device *netdev,
303 struct iw_request_info *info,
304 union iwreq_data *iwreq, char *extra)
305 {
306 struct iw_point *point = &iwreq->data;
307 struct iw_range *range = (struct iw_range *)extra;
308 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
309 unsigned int i, chs;
310
311 pr_debug("%s: <-\n", __func__);
312 point->length = sizeof(struct iw_range);
313 memset(range, 0, sizeof(struct iw_range));
314
315 range->we_version_compiled = WIRELESS_EXT;
316 range->we_version_source = 22;
317
318 /* available channels and frequencies */
319 gelic_wl_get_ch_info(wl);
320
321 for (i = 0, chs = 0;
322 i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
323 if (wl->ch_info & (1 << i)) {
324 range->freq[chs].i = i + 1;
325 range->freq[chs].m = channel_freq[i];
326 range->freq[chs].e = 6;
327 chs++;
328 }
329 range->num_frequency = chs;
330 range->old_num_frequency = chs;
331 range->num_channels = chs;
332 range->old_num_channels = chs;
333
334 /* bitrates */
335 for (i = 0; i < NUM_BITRATES; i++)
336 range->bitrate[i] = bitrate_list[i];
337 range->num_bitrates = i;
338
339 /* signal levels */
340 range->max_qual.qual = 100; /* relative value */
341 range->max_qual.level = 100;
342 range->avg_qual.qual = 50;
343 range->avg_qual.level = 50;
344 range->sensitivity = 0;
345
346 /* Event capability */
347 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
348 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
349 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
350
351 /* encryption capability */
352 range->enc_capa = IW_ENC_CAPA_WPA |
353 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
354 if (wpa2_capable())
355 range->enc_capa |= IW_ENC_CAPA_WPA2;
356 range->encoding_size[0] = 5; /* 40bit WEP */
357 range->encoding_size[1] = 13; /* 104bit WEP */
358 range->encoding_size[2] = 32; /* WPA-PSK */
359 range->num_encoding_sizes = 3;
360 range->max_encoding_tokens = GELIC_WEP_KEYS;
361
362 pr_debug("%s: ->\n", __func__);
363 return 0;
364
365 }
366
367 /* SIOC{G,S}IWSCAN */
368 static int gelic_wl_set_scan(struct net_device *netdev,
369 struct iw_request_info *info,
370 union iwreq_data *wrqu, char *extra)
371 {
372 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
373
374 return gelic_wl_start_scan(wl, 1);
375 }
376
377 #define OUI_LEN 3
378 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
379 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
380
381 /*
382 * synthesize WPA/RSN IE data
383 * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
384 * for the format
385 */
386 static size_t gelic_wl_synthesize_ie(u8 *buf,
387 struct gelic_eurus_scan_info *scan)
388 {
389
390 const u8 *oui_header;
391 u8 *start = buf;
392 int rsn;
393 int ccmp;
394
395 pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
396 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
397 case GELIC_EURUS_SCAN_SEC_WPA:
398 rsn = 0;
399 break;
400 case GELIC_EURUS_SCAN_SEC_WPA2:
401 rsn = 1;
402 break;
403 default:
404 /* WEP or none. No IE returned */
405 return 0;
406 }
407
408 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
409 case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
410 ccmp = 0;
411 break;
412 case GELIC_EURUS_SCAN_SEC_WPA_AES:
413 ccmp = 1;
414 break;
415 default:
416 if (rsn) {
417 ccmp = 1;
418 pr_info("%s: no cipher info. defaulted to CCMP\n",
419 __func__);
420 } else {
421 ccmp = 0;
422 pr_info("%s: no cipher info. defaulted to TKIP\n",
423 __func__);
424 }
425 }
426
427 if (rsn)
428 oui_header = rsn_oui;
429 else
430 oui_header = wpa_oui;
431
432 /* element id */
433 if (rsn)
434 *buf++ = MFIE_TYPE_RSN;
435 else
436 *buf++ = MFIE_TYPE_GENERIC;
437
438 /* length filed; set later */
439 buf++;
440
441 /* wpa special header */
442 if (!rsn) {
443 memcpy(buf, wpa_oui, OUI_LEN);
444 buf += OUI_LEN;
445 *buf++ = 0x01;
446 }
447
448 /* version */
449 *buf++ = 0x01; /* version 1.0 */
450 *buf++ = 0x00;
451
452 /* group cipher */
453 memcpy(buf, oui_header, OUI_LEN);
454 buf += OUI_LEN;
455
456 if (ccmp)
457 *buf++ = 0x04; /* CCMP */
458 else
459 *buf++ = 0x02; /* TKIP */
460
461 /* pairwise key count always 1 */
462 *buf++ = 0x01;
463 *buf++ = 0x00;
464
465 /* pairwise key suit */
466 memcpy(buf, oui_header, OUI_LEN);
467 buf += OUI_LEN;
468 if (ccmp)
469 *buf++ = 0x04; /* CCMP */
470 else
471 *buf++ = 0x02; /* TKIP */
472
473 /* AKM count is 1 */
474 *buf++ = 0x01;
475 *buf++ = 0x00;
476
477 /* AKM suite is assumed as PSK*/
478 memcpy(buf, oui_header, OUI_LEN);
479 buf += OUI_LEN;
480 *buf++ = 0x02; /* PSK */
481
482 /* RSN capabilities is 0 */
483 *buf++ = 0x00;
484 *buf++ = 0x00;
485
486 /* set length field */
487 start[1] = (buf - start - 2);
488
489 pr_debug("%s: ->\n", __func__);
490 return (buf - start);
491 }
492
493 struct ie_item {
494 u8 *data;
495 u8 len;
496 };
497
498 struct ie_info {
499 struct ie_item wpa;
500 struct ie_item rsn;
501 };
502
503 static void gelic_wl_parse_ie(u8 *data, size_t len,
504 struct ie_info *ie_info)
505 {
506 size_t data_left = len;
507 u8 *pos = data;
508 u8 item_len;
509 u8 item_id;
510
511 pr_debug("%s: data=%p len=%ld \n", __func__,
512 data, len);
513 memset(ie_info, 0, sizeof(struct ie_info));
514
515 while (2 <= data_left) {
516 item_id = *pos++;
517 item_len = *pos++;
518 data_left -= 2;
519
520 if (data_left < item_len)
521 break;
522
523 switch (item_id) {
524 case MFIE_TYPE_GENERIC:
525 if ((OUI_LEN + 1 <= item_len) &&
526 !memcmp(pos, wpa_oui, OUI_LEN) &&
527 pos[OUI_LEN] == 0x01) {
528 ie_info->wpa.data = pos - 2;
529 ie_info->wpa.len = item_len + 2;
530 }
531 break;
532 case MFIE_TYPE_RSN:
533 ie_info->rsn.data = pos - 2;
534 /* length includes the header */
535 ie_info->rsn.len = item_len + 2;
536 break;
537 default:
538 pr_debug("%s: ignore %#x,%d\n", __func__,
539 item_id, item_len);
540 break;
541 }
542 pos += item_len;
543 data_left -= item_len;
544 }
545 pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
546 ie_info->wpa.data, ie_info->wpa.len,
547 ie_info->rsn.data, ie_info->rsn.len);
548 }
549
550
551 /*
552 * translate the scan informations from hypervisor to a
553 * independent format
554 */
555 static char *gelic_wl_translate_scan(struct net_device *netdev,
556 char *ev,
557 char *stop,
558 struct gelic_wl_scan_info *network)
559 {
560 struct iw_event iwe;
561 struct gelic_eurus_scan_info *scan = network->hwinfo;
562 char *tmp;
563 u8 rate;
564 unsigned int i, j, len;
565 u8 buf[MAX_WPA_IE_LEN];
566
567 pr_debug("%s: <-\n", __func__);
568
569 /* first entry should be AP's mac address */
570 iwe.cmd = SIOCGIWAP;
571 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
572 memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
573 ev = iwe_stream_add_event(ev, stop, &iwe, IW_EV_ADDR_LEN);
574
575 /* ESSID */
576 iwe.cmd = SIOCGIWESSID;
577 iwe.u.data.flags = 1;
578 iwe.u.data.length = strnlen(scan->essid, 32);
579 ev = iwe_stream_add_point(ev, stop, &iwe, scan->essid);
580
581 /* FREQUENCY */
582 iwe.cmd = SIOCGIWFREQ;
583 iwe.u.freq.m = be16_to_cpu(scan->channel);
584 iwe.u.freq.e = 0; /* table value in MHz */
585 iwe.u.freq.i = 0;
586 ev = iwe_stream_add_event(ev, stop, &iwe, IW_EV_FREQ_LEN);
587
588 /* RATES */
589 iwe.cmd = SIOCGIWRATE;
590 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
591 /* to stuff multiple values in one event */
592 tmp = ev + IW_EV_LCP_LEN;
593 /* put them in ascendant order (older is first) */
594 i = 0;
595 j = 0;
596 pr_debug("%s: rates=%d rate=%d\n", __func__,
597 network->rate_len, network->rate_ext_len);
598 while (i < network->rate_len) {
599 if (j < network->rate_ext_len &&
600 ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
601 rate = scan->ext_rate[j++] & 0x7f;
602 else
603 rate = scan->rate[i++] & 0x7f;
604 iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
605 tmp = iwe_stream_add_value(ev, tmp, stop, &iwe,
606 IW_EV_PARAM_LEN);
607 }
608 while (j < network->rate_ext_len) {
609 iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
610 tmp = iwe_stream_add_value(ev, tmp, stop, &iwe,
611 IW_EV_PARAM_LEN);
612 }
613 /* Check if we added any rate */
614 if (IW_EV_LCP_LEN < (tmp - ev))
615 ev = tmp;
616
617 /* ENCODE */
618 iwe.cmd = SIOCGIWENCODE;
619 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
620 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
621 else
622 iwe.u.data.flags = IW_ENCODE_DISABLED;
623 iwe.u.data.length = 0;
624 ev = iwe_stream_add_point(ev, stop, &iwe, scan->essid);
625
626 /* MODE */
627 iwe.cmd = SIOCGIWMODE;
628 if (be16_to_cpu(scan->capability) &
629 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
630 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
631 iwe.u.mode = IW_MODE_MASTER;
632 else
633 iwe.u.mode = IW_MODE_ADHOC;
634 ev = iwe_stream_add_event(ev, stop, &iwe, IW_EV_UINT_LEN);
635 }
636
637 /* QUAL */
638 iwe.cmd = IWEVQUAL;
639 iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
640 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
641 iwe.u.qual.level = be16_to_cpu(scan->rssi);
642 iwe.u.qual.qual = be16_to_cpu(scan->rssi);
643 iwe.u.qual.noise = 0;
644 ev = iwe_stream_add_event(ev, stop, &iwe, IW_EV_QUAL_LEN);
645
646 /* RSN */
647 memset(&iwe, 0, sizeof(iwe));
648 if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
649 /* If wpa[2] capable station, synthesize IE and put it */
650 len = gelic_wl_synthesize_ie(buf, scan);
651 if (len) {
652 iwe.cmd = IWEVGENIE;
653 iwe.u.data.length = len;
654 ev = iwe_stream_add_point(ev, stop, &iwe, buf);
655 }
656 } else {
657 /* this scan info has IE data */
658 struct ie_info ie_info;
659 size_t data_len;
660
661 data_len = be16_to_cpu(scan->size) - sizeof(*scan);
662
663 gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
664
665 if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
666 memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
667 iwe.cmd = IWEVGENIE;
668 iwe.u.data.length = ie_info.wpa.len;
669 ev = iwe_stream_add_point(ev, stop, &iwe, buf);
670 }
671
672 if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
673 memset(&iwe, 0, sizeof(iwe));
674 memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
675 iwe.cmd = IWEVGENIE;
676 iwe.u.data.length = ie_info.rsn.len;
677 ev = iwe_stream_add_point(ev, stop, &iwe, buf);
678 }
679 }
680
681 pr_debug("%s: ->\n", __func__);
682 return ev;
683 }
684
685
686 static int gelic_wl_get_scan(struct net_device *netdev,
687 struct iw_request_info *info,
688 union iwreq_data *wrqu, char *extra)
689 {
690 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
691 struct gelic_wl_scan_info *scan_info;
692 char *ev = extra;
693 char *stop = ev + wrqu->data.length;
694 int ret = 0;
695 unsigned long this_time = jiffies;
696
697 pr_debug("%s: <-\n", __func__);
698 if (down_interruptible(&wl->scan_lock))
699 return -EAGAIN;
700
701 switch (wl->scan_stat) {
702 case GELIC_WL_SCAN_STAT_SCANNING:
703 /* If a scan in progress, caller should call me again */
704 ret = -EAGAIN;
705 goto out;
706 break;
707
708 case GELIC_WL_SCAN_STAT_INIT:
709 /* last scan request failed or never issued */
710 ret = -ENODEV;
711 goto out;
712 break;
713 case GELIC_WL_SCAN_STAT_GOT_LIST:
714 /* ok, use current list */
715 break;
716 }
717
718 list_for_each_entry(scan_info, &wl->network_list, list) {
719 if (wl->scan_age == 0 ||
720 time_after(scan_info->last_scanned + wl->scan_age,
721 this_time))
722 ev = gelic_wl_translate_scan(netdev, ev, stop,
723 scan_info);
724 else
725 pr_debug("%s:entry too old\n", __func__);
726
727 if (stop - ev <= IW_EV_ADDR_LEN) {
728 ret = -E2BIG;
729 goto out;
730 }
731 }
732
733 wrqu->data.length = ev - extra;
734 wrqu->data.flags = 0;
735 out:
736 up(&wl->scan_lock);
737 pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
738 return ret;
739 }
740
741 #ifdef DEBUG
742 static void scan_list_dump(struct gelic_wl_info *wl)
743 {
744 struct gelic_wl_scan_info *scan_info;
745 int i;
746 DECLARE_MAC_BUF(mac);
747
748 i = 0;
749 list_for_each_entry(scan_info, &wl->network_list, list) {
750 pr_debug("%s: item %d\n", __func__, i++);
751 pr_debug("valid=%d eurusindex=%d last=%lx\n",
752 scan_info->valid, scan_info->eurus_index,
753 scan_info->last_scanned);
754 pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
755 scan_info->rate_len, scan_info->rate_ext_len,
756 scan_info->essid_len);
757 /* -- */
758 pr_debug("bssid=%s\n",
759 print_mac(mac, &scan_info->hwinfo->bssid[2]));
760 pr_debug("essid=%s\n", scan_info->hwinfo->essid);
761 }
762 }
763 #endif
764
765 static int gelic_wl_set_auth(struct net_device *netdev,
766 struct iw_request_info *info,
767 union iwreq_data *data, char *extra)
768 {
769 struct iw_param *param = &data->param;
770 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
771 unsigned long irqflag;
772 int ret = 0;
773
774 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
775 spin_lock_irqsave(&wl->lock, irqflag);
776 switch (param->flags & IW_AUTH_INDEX) {
777 case IW_AUTH_WPA_VERSION:
778 if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
779 pr_debug("%s: NO WPA selected\n", __func__);
780 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
781 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
782 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
783 }
784 if (param->value & IW_AUTH_WPA_VERSION_WPA) {
785 pr_debug("%s: WPA version 1 selected\n", __func__);
786 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
787 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
788 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
789 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
790 }
791 if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
792 /*
793 * As the hypervisor may not tell the cipher
794 * information of the AP if it is WPA2,
795 * you will not decide suitable cipher from
796 * its beacon.
797 * You should have knowledge about the AP's
798 * cipher infomation in other method prior to
799 * the association.
800 */
801 if (!precise_ie())
802 pr_info("%s: WPA2 may not work\n", __func__);
803 if (wpa2_capable()) {
804 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
805 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
806 wl->pairwise_cipher_method =
807 GELIC_WL_CIPHER_AES;
808 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
809 } else
810 ret = -EINVAL;
811 }
812 break;
813
814 case IW_AUTH_CIPHER_PAIRWISE:
815 if (param->value &
816 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
817 pr_debug("%s: WEP selected\n", __func__);
818 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
819 }
820 if (param->value & IW_AUTH_CIPHER_TKIP) {
821 pr_debug("%s: TKIP selected\n", __func__);
822 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
823 }
824 if (param->value & IW_AUTH_CIPHER_CCMP) {
825 pr_debug("%s: CCMP selected\n", __func__);
826 wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
827 }
828 if (param->value & IW_AUTH_CIPHER_NONE) {
829 pr_debug("%s: no auth selected\n", __func__);
830 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
831 }
832 break;
833 case IW_AUTH_CIPHER_GROUP:
834 if (param->value &
835 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
836 pr_debug("%s: WEP selected\n", __func__);
837 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
838 }
839 if (param->value & IW_AUTH_CIPHER_TKIP) {
840 pr_debug("%s: TKIP selected\n", __func__);
841 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
842 }
843 if (param->value & IW_AUTH_CIPHER_CCMP) {
844 pr_debug("%s: CCMP selected\n", __func__);
845 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
846 }
847 if (param->value & IW_AUTH_CIPHER_NONE) {
848 pr_debug("%s: no auth selected\n", __func__);
849 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
850 }
851 break;
852 case IW_AUTH_80211_AUTH_ALG:
853 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
854 pr_debug("%s: shared key specified\n", __func__);
855 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
856 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
857 pr_debug("%s: open system specified\n", __func__);
858 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
859 } else
860 ret = -EINVAL;
861 break;
862
863 case IW_AUTH_WPA_ENABLED:
864 if (param->value) {
865 pr_debug("%s: WPA enabled\n", __func__);
866 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
867 } else {
868 pr_debug("%s: WPA disabled\n", __func__);
869 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
870 }
871 break;
872
873 case IW_AUTH_KEY_MGMT:
874 if (param->value & IW_AUTH_KEY_MGMT_PSK)
875 break;
876 /* intentionally fall through */
877 default:
878 ret = -EOPNOTSUPP;
879 break;
880 };
881
882 if (!ret)
883 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
884
885 spin_unlock_irqrestore(&wl->lock, irqflag);
886 pr_debug("%s: -> %d\n", __func__, ret);
887 return ret;
888 }
889
890 static int gelic_wl_get_auth(struct net_device *netdev,
891 struct iw_request_info *info,
892 union iwreq_data *iwreq, char *extra)
893 {
894 struct iw_param *param = &iwreq->param;
895 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
896 unsigned long irqflag;
897 int ret = 0;
898
899 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
900 spin_lock_irqsave(&wl->lock, irqflag);
901 switch (param->flags & IW_AUTH_INDEX) {
902 case IW_AUTH_WPA_VERSION:
903 switch (wl->wpa_level) {
904 case GELIC_WL_WPA_LEVEL_WPA:
905 param->value |= IW_AUTH_WPA_VERSION_WPA;
906 break;
907 case GELIC_WL_WPA_LEVEL_WPA2:
908 param->value |= IW_AUTH_WPA_VERSION_WPA2;
909 break;
910 default:
911 param->value |= IW_AUTH_WPA_VERSION_DISABLED;
912 }
913 break;
914
915 case IW_AUTH_80211_AUTH_ALG:
916 if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
917 param->value = IW_AUTH_ALG_SHARED_KEY;
918 else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
919 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
920 break;
921
922 case IW_AUTH_WPA_ENABLED:
923 switch (wl->wpa_level) {
924 case GELIC_WL_WPA_LEVEL_WPA:
925 case GELIC_WL_WPA_LEVEL_WPA2:
926 param->value = 1;
927 break;
928 default:
929 param->value = 0;
930 break;
931 }
932 break;
933 default:
934 ret = -EOPNOTSUPP;
935 }
936
937 spin_unlock_irqrestore(&wl->lock, irqflag);
938 pr_debug("%s: -> %d\n", __func__, ret);
939 return ret;
940 }
941
942 /* SIOC{S,G}IWESSID */
943 static int gelic_wl_set_essid(struct net_device *netdev,
944 struct iw_request_info *info,
945 union iwreq_data *data, char *extra)
946 {
947 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
948 unsigned long irqflag;
949
950 pr_debug("%s: <- l=%d f=%d\n", __func__,
951 data->essid.length, data->essid.flags);
952 if (IW_ESSID_MAX_SIZE < data->essid.length)
953 return -EINVAL;
954
955 spin_lock_irqsave(&wl->lock, irqflag);
956 if (data->essid.flags) {
957 wl->essid_len = data->essid.length;
958 memcpy(wl->essid, extra, wl->essid_len);
959 pr_debug("%s: essid = '%s'\n", __func__, extra);
960 set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
961 } else {
962 pr_debug("%s: ESSID any \n", __func__);
963 clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
964 }
965 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
966 spin_unlock_irqrestore(&wl->lock, irqflag);
967
968
969 gelic_wl_try_associate(netdev); /* FIXME */
970 pr_debug("%s: -> \n", __func__);
971 return 0;
972 }
973
974 static int gelic_wl_get_essid(struct net_device *netdev,
975 struct iw_request_info *info,
976 union iwreq_data *data, char *extra)
977 {
978 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
979 unsigned long irqflag;
980
981 pr_debug("%s: <- \n", __func__);
982 down(&wl->assoc_stat_lock);
983 spin_lock_irqsave(&wl->lock, irqflag);
984 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
985 wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
986 memcpy(extra, wl->essid, wl->essid_len);
987 data->essid.length = wl->essid_len;
988 data->essid.flags = 1;
989 } else
990 data->essid.flags = 0;
991
992 up(&wl->assoc_stat_lock);
993 spin_unlock_irqrestore(&wl->lock, irqflag);
994 pr_debug("%s: -> len=%d \n", __func__, data->essid.length);
995
996 return 0;
997 }
998
999 /* SIO{S,G}IWENCODE */
1000 static int gelic_wl_set_encode(struct net_device *netdev,
1001 struct iw_request_info *info,
1002 union iwreq_data *data, char *extra)
1003 {
1004 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1005 struct iw_point *enc = &data->encoding;
1006 __u16 flags;
1007 unsigned int irqflag;
1008 int key_index, index_specified;
1009 int ret = 0;
1010
1011 pr_debug("%s: <- \n", __func__);
1012 flags = enc->flags & IW_ENCODE_FLAGS;
1013 key_index = enc->flags & IW_ENCODE_INDEX;
1014
1015 pr_debug("%s: key_index = %d\n", __func__, key_index);
1016 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1017 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1018
1019 if (GELIC_WEP_KEYS < key_index)
1020 return -EINVAL;
1021
1022 spin_lock_irqsave(&wl->lock, irqflag);
1023 if (key_index) {
1024 index_specified = 1;
1025 key_index--;
1026 } else {
1027 index_specified = 0;
1028 key_index = wl->current_key;
1029 }
1030
1031 if (flags & IW_ENCODE_NOKEY) {
1032 /* if just IW_ENCODE_NOKEY, change current key index */
1033 if (!flags && index_specified) {
1034 wl->current_key = key_index;
1035 goto done;
1036 }
1037
1038 if (flags & IW_ENCODE_DISABLED) {
1039 if (!index_specified) {
1040 /* disable encryption */
1041 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1042 wl->pairwise_cipher_method =
1043 GELIC_WL_CIPHER_NONE;
1044 /* invalidate all key */
1045 wl->key_enabled = 0;
1046 } else
1047 clear_bit(key_index, &wl->key_enabled);
1048 }
1049
1050 if (flags & IW_ENCODE_OPEN)
1051 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1052 if (flags & IW_ENCODE_RESTRICTED) {
1053 pr_info("%s: shared key mode enabled\n", __func__);
1054 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1055 }
1056 } else {
1057 if (IW_ENCODING_TOKEN_MAX < enc->length) {
1058 ret = -EINVAL;
1059 goto done;
1060 }
1061 wl->key_len[key_index] = enc->length;
1062 memcpy(wl->key[key_index], extra, enc->length);
1063 set_bit(key_index, &wl->key_enabled);
1064 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1065 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1066 }
1067 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1068 done:
1069 spin_unlock_irqrestore(&wl->lock, irqflag);
1070 pr_debug("%s: -> \n", __func__);
1071 return ret;
1072 }
1073
1074 static int gelic_wl_get_encode(struct net_device *netdev,
1075 struct iw_request_info *info,
1076 union iwreq_data *data, char *extra)
1077 {
1078 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1079 struct iw_point *enc = &data->encoding;
1080 unsigned int irqflag;
1081 unsigned int key_index, index_specified;
1082 int ret = 0;
1083
1084 pr_debug("%s: <- \n", __func__);
1085 key_index = enc->flags & IW_ENCODE_INDEX;
1086 pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1087 enc->flags, enc->pointer, enc->length, extra);
1088 if (GELIC_WEP_KEYS < key_index)
1089 return -EINVAL;
1090
1091 spin_lock_irqsave(&wl->lock, irqflag);
1092 if (key_index) {
1093 index_specified = 1;
1094 key_index--;
1095 } else {
1096 index_specified = 0;
1097 key_index = wl->current_key;
1098 }
1099
1100 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1101 switch (wl->auth_method) {
1102 case GELIC_EURUS_AUTH_OPEN:
1103 enc->flags = IW_ENCODE_OPEN;
1104 break;
1105 case GELIC_EURUS_AUTH_SHARED:
1106 enc->flags = IW_ENCODE_RESTRICTED;
1107 break;
1108 }
1109 } else
1110 enc->flags = IW_ENCODE_DISABLED;
1111
1112 if (test_bit(key_index, &wl->key_enabled)) {
1113 if (enc->length < wl->key_len[key_index]) {
1114 ret = -EINVAL;
1115 goto done;
1116 }
1117 enc->length = wl->key_len[key_index];
1118 memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1119 } else {
1120 enc->length = 0;
1121 enc->flags |= IW_ENCODE_NOKEY;
1122 }
1123 enc->flags |= key_index + 1;
1124 pr_debug("%s: -> flag=%x len=%d\n", __func__,
1125 enc->flags, enc->length);
1126
1127 done:
1128 spin_unlock_irqrestore(&wl->lock, irqflag);
1129 return ret;
1130 }
1131
1132 /* SIOC{S,G}IWAP */
1133 static int gelic_wl_set_ap(struct net_device *netdev,
1134 struct iw_request_info *info,
1135 union iwreq_data *data, char *extra)
1136 {
1137 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1138 unsigned long irqflag;
1139
1140 pr_debug("%s: <-\n", __func__);
1141 if (data->ap_addr.sa_family != ARPHRD_ETHER)
1142 return -EINVAL;
1143
1144 spin_lock_irqsave(&wl->lock, irqflag);
1145 if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1146 memcpy(wl->bssid, data->ap_addr.sa_data,
1147 ETH_ALEN);
1148 set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1149 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1150 pr_debug("%s: bss=%02x:%02x:%02x:%02x:%02x:%02x\n",
1151 __func__,
1152 wl->bssid[0], wl->bssid[1],
1153 wl->bssid[2], wl->bssid[3],
1154 wl->bssid[4], wl->bssid[5]);
1155 } else {
1156 pr_debug("%s: clear bssid\n", __func__);
1157 clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1158 memset(wl->bssid, 0, ETH_ALEN);
1159 }
1160 spin_unlock_irqrestore(&wl->lock, irqflag);
1161 pr_debug("%s: ->\n", __func__);
1162 return 0;
1163 }
1164
1165 static int gelic_wl_get_ap(struct net_device *netdev,
1166 struct iw_request_info *info,
1167 union iwreq_data *data, char *extra)
1168 {
1169 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1170 unsigned long irqflag;
1171
1172 pr_debug("%s: <-\n", __func__);
1173 down(&wl->assoc_stat_lock);
1174 spin_lock_irqsave(&wl->lock, irqflag);
1175 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1176 data->ap_addr.sa_family = ARPHRD_ETHER;
1177 memcpy(data->ap_addr.sa_data, wl->active_bssid,
1178 ETH_ALEN);
1179 } else
1180 memset(data->ap_addr.sa_data, 0, ETH_ALEN);
1181
1182 spin_unlock_irqrestore(&wl->lock, irqflag);
1183 up(&wl->assoc_stat_lock);
1184 pr_debug("%s: ->\n", __func__);
1185 return 0;
1186 }
1187
1188 /* SIOC{S,G}IWENCODEEXT */
1189 static int gelic_wl_set_encodeext(struct net_device *netdev,
1190 struct iw_request_info *info,
1191 union iwreq_data *data, char *extra)
1192 {
1193 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1194 struct iw_point *enc = &data->encoding;
1195 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1196 __u16 alg;
1197 __u16 flags;
1198 unsigned int irqflag;
1199 int key_index;
1200 int ret = 0;
1201
1202 pr_debug("%s: <- \n", __func__);
1203 flags = enc->flags & IW_ENCODE_FLAGS;
1204 alg = ext->alg;
1205 key_index = enc->flags & IW_ENCODE_INDEX;
1206
1207 pr_debug("%s: key_index = %d\n", __func__, key_index);
1208 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1209 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1210 pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1211 pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1212
1213 if (GELIC_WEP_KEYS < key_index)
1214 return -EINVAL;
1215
1216 spin_lock_irqsave(&wl->lock, irqflag);
1217 if (key_index)
1218 key_index--;
1219 else
1220 key_index = wl->current_key;
1221
1222 if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1223 /* reques to change default key index */
1224 pr_debug("%s: request to change default key to %d\n",
1225 __func__, key_index);
1226 wl->current_key = key_index;
1227 goto done;
1228 }
1229
1230 if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1231 pr_debug("%s: alg disabled\n", __func__);
1232 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1233 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1234 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1235 wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1236 } else if (alg == IW_ENCODE_ALG_WEP) {
1237 pr_debug("%s: WEP requested\n", __func__);
1238 if (flags & IW_ENCODE_OPEN) {
1239 pr_debug("%s: open key mode\n", __func__);
1240 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1241 }
1242 if (flags & IW_ENCODE_RESTRICTED) {
1243 pr_debug("%s: shared key mode\n", __func__);
1244 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1245 }
1246 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1247 pr_info("%s: key is too long %d\n", __func__,
1248 ext->key_len);
1249 ret = -EINVAL;
1250 goto done;
1251 }
1252 /* OK, update the key */
1253 wl->key_len[key_index] = ext->key_len;
1254 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1255 memcpy(wl->key[key_index], ext->key, ext->key_len);
1256 set_bit(key_index, &wl->key_enabled);
1257 /* remember wep info changed */
1258 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1259 } else if ((alg == IW_ENCODE_ALG_TKIP) || (alg == IW_ENCODE_ALG_CCMP)) {
1260 pr_debug("%s: TKIP/CCMP requested alg=%d\n", __func__, alg);
1261 /* check key length */
1262 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1263 pr_info("%s: key is too long %d\n", __func__,
1264 ext->key_len);
1265 ret = -EINVAL;
1266 goto done;
1267 }
1268 if (alg == IW_ENCODE_ALG_CCMP) {
1269 pr_debug("%s: AES selected\n", __func__);
1270 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
1271 wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
1272 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
1273 } else {
1274 pr_debug("%s: TKIP selected, WPA forced\n", __func__);
1275 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
1276 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
1277 /* FIXME: how do we do if WPA2 + TKIP? */
1278 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
1279 }
1280 if (flags & IW_ENCODE_RESTRICTED)
1281 BUG();
1282 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1283 /* We should use same key for both and unicast */
1284 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
1285 pr_debug("%s: group key \n", __func__);
1286 else
1287 pr_debug("%s: unicast key \n", __func__);
1288 /* OK, update the key */
1289 wl->key_len[key_index] = ext->key_len;
1290 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1291 memcpy(wl->key[key_index], ext->key, ext->key_len);
1292 set_bit(key_index, &wl->key_enabled);
1293 /* remember info changed */
1294 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1295 }
1296 done:
1297 spin_unlock_irqrestore(&wl->lock, irqflag);
1298 pr_debug("%s: -> \n", __func__);
1299 return ret;
1300 }
1301
1302 static int gelic_wl_get_encodeext(struct net_device *netdev,
1303 struct iw_request_info *info,
1304 union iwreq_data *data, char *extra)
1305 {
1306 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1307 struct iw_point *enc = &data->encoding;
1308 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1309 unsigned int irqflag;
1310 int key_index;
1311 int ret = 0;
1312 int max_key_len;
1313
1314 pr_debug("%s: <- \n", __func__);
1315
1316 max_key_len = enc->length - sizeof(struct iw_encode_ext);
1317 if (max_key_len < 0)
1318 return -EINVAL;
1319 key_index = enc->flags & IW_ENCODE_INDEX;
1320
1321 pr_debug("%s: key_index = %d\n", __func__, key_index);
1322 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1323 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1324
1325 if (GELIC_WEP_KEYS < key_index)
1326 return -EINVAL;
1327
1328 spin_lock_irqsave(&wl->lock, irqflag);
1329 if (key_index)
1330 key_index--;
1331 else
1332 key_index = wl->current_key;
1333
1334 memset(ext, 0, sizeof(struct iw_encode_ext));
1335 switch (wl->group_cipher_method) {
1336 case GELIC_WL_CIPHER_WEP:
1337 ext->alg = IW_ENCODE_ALG_WEP;
1338 enc->flags |= IW_ENCODE_ENABLED;
1339 break;
1340 case GELIC_WL_CIPHER_TKIP:
1341 ext->alg = IW_ENCODE_ALG_TKIP;
1342 enc->flags |= IW_ENCODE_ENABLED;
1343 break;
1344 case GELIC_WL_CIPHER_AES:
1345 ext->alg = IW_ENCODE_ALG_CCMP;
1346 enc->flags |= IW_ENCODE_ENABLED;
1347 break;
1348 case GELIC_WL_CIPHER_NONE:
1349 default:
1350 ext->alg = IW_ENCODE_ALG_NONE;
1351 enc->flags |= IW_ENCODE_NOKEY;
1352 break;
1353 }
1354
1355 if (!(enc->flags & IW_ENCODE_NOKEY)) {
1356 if (max_key_len < wl->key_len[key_index]) {
1357 ret = -E2BIG;
1358 goto out;
1359 }
1360 if (test_bit(key_index, &wl->key_enabled))
1361 memcpy(ext->key, wl->key[key_index],
1362 wl->key_len[key_index]);
1363 else
1364 pr_debug("%s: disabled key requested ix=%d\n",
1365 __func__, key_index);
1366 }
1367 out:
1368 spin_unlock_irqrestore(&wl->lock, irqflag);
1369 pr_debug("%s: -> \n", __func__);
1370 return ret;
1371 }
1372 /* SIOC{S,G}IWMODE */
1373 static int gelic_wl_set_mode(struct net_device *netdev,
1374 struct iw_request_info *info,
1375 union iwreq_data *data, char *extra)
1376 {
1377 __u32 mode = data->mode;
1378 int ret;
1379
1380 pr_debug("%s: <- \n", __func__);
1381 if (mode == IW_MODE_INFRA)
1382 ret = 0;
1383 else
1384 ret = -EOPNOTSUPP;
1385 pr_debug("%s: -> %d\n", __func__, ret);
1386 return ret;
1387 }
1388
1389 static int gelic_wl_get_mode(struct net_device *netdev,
1390 struct iw_request_info *info,
1391 union iwreq_data *data, char *extra)
1392 {
1393 __u32 *mode = &data->mode;
1394 pr_debug("%s: <- \n", __func__);
1395 *mode = IW_MODE_INFRA;
1396 pr_debug("%s: ->\n", __func__);
1397 return 0;
1398 }
1399
1400 /* SIOCIWFIRSTPRIV */
1401 static int hex2bin(u8 *str, u8 *bin, unsigned int len)
1402 {
1403 unsigned int i;
1404 static unsigned char *hex = "0123456789ABCDEF";
1405 unsigned char *p, *q;
1406 u8 tmp;
1407
1408 if (len != WPA_PSK_LEN * 2)
1409 return -EINVAL;
1410
1411 for (i = 0; i < WPA_PSK_LEN * 2; i += 2) {
1412 p = strchr(hex, toupper(str[i]));
1413 q = strchr(hex, toupper(str[i + 1]));
1414 if (!p || !q) {
1415 pr_info("%s: unconvertible PSK digit=%d\n",
1416 __func__, i);
1417 return -EINVAL;
1418 }
1419 tmp = ((p - hex) << 4) + (q - hex);
1420 *bin++ = tmp;
1421 }
1422 return 0;
1423 };
1424
1425 static int gelic_wl_priv_set_psk(struct net_device *net_dev,
1426 struct iw_request_info *info,
1427 union iwreq_data *data, char *extra)
1428 {
1429 struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1430 unsigned int len;
1431 unsigned int irqflag;
1432 int ret = 0;
1433
1434 pr_debug("%s:<- len=%d\n", __func__, data->data.length);
1435 len = data->data.length - 1;
1436 if (len <= 2)
1437 return -EINVAL;
1438
1439 spin_lock_irqsave(&wl->lock, irqflag);
1440 if (extra[0] == '"' && extra[len - 1] == '"') {
1441 pr_debug("%s: passphrase mode\n", __func__);
1442 /* pass phrase */
1443 if (GELIC_WL_EURUS_PSK_MAX_LEN < (len - 2)) {
1444 pr_info("%s: passphrase too long\n", __func__);
1445 ret = -E2BIG;
1446 goto out;
1447 }
1448 memset(wl->psk, 0, sizeof(wl->psk));
1449 wl->psk_len = len - 2;
1450 memcpy(wl->psk, &(extra[1]), wl->psk_len);
1451 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
1452 } else {
1453 ret = hex2bin(extra, wl->psk, len);
1454 if (ret)
1455 goto out;
1456 wl->psk_len = WPA_PSK_LEN;
1457 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1458 }
1459 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1460 out:
1461 spin_unlock_irqrestore(&wl->lock, irqflag);
1462 pr_debug("%s:->\n", __func__);
1463 return ret;
1464 }
1465
1466 static int gelic_wl_priv_get_psk(struct net_device *net_dev,
1467 struct iw_request_info *info,
1468 union iwreq_data *data, char *extra)
1469 {
1470 struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1471 char *p;
1472 unsigned int irqflag;
1473 unsigned int i;
1474
1475 pr_debug("%s:<-\n", __func__);
1476 if (!capable(CAP_NET_ADMIN))
1477 return -EPERM;
1478
1479 spin_lock_irqsave(&wl->lock, irqflag);
1480 p = extra;
1481 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat)) {
1482 if (wl->psk_type == GELIC_EURUS_WPA_PSK_BIN) {
1483 for (i = 0; i < wl->psk_len; i++) {
1484 sprintf(p, "%02xu", wl->psk[i]);
1485 p += 2;
1486 }
1487 *p = '\0';
1488 data->data.length = wl->psk_len * 2;
1489 } else {
1490 *p++ = '"';
1491 memcpy(p, wl->psk, wl->psk_len);
1492 p += wl->psk_len;
1493 *p++ = '"';
1494 *p = '\0';
1495 data->data.length = wl->psk_len + 2;
1496 }
1497 } else
1498 /* no psk set */
1499 data->data.length = 0;
1500 spin_unlock_irqrestore(&wl->lock, irqflag);
1501 pr_debug("%s:-> %d\n", __func__, data->data.length);
1502 return 0;
1503 }
1504
1505 /* SIOCGIWNICKN */
1506 static int gelic_wl_get_nick(struct net_device *net_dev,
1507 struct iw_request_info *info,
1508 union iwreq_data *data, char *extra)
1509 {
1510 strcpy(extra, "gelic_wl");
1511 data->data.length = strlen(extra);
1512 data->data.flags = 1;
1513 return 0;
1514 }
1515
1516
1517 /* --- */
1518
1519 static struct iw_statistics *gelic_wl_get_wireless_stats(
1520 struct net_device *netdev)
1521 {
1522
1523 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1524 struct gelic_eurus_cmd *cmd;
1525 struct iw_statistics *is;
1526 struct gelic_eurus_rssi_info *rssi;
1527
1528 pr_debug("%s: <-\n", __func__);
1529
1530 is = &wl->iwstat;
1531 memset(is, 0, sizeof(*is));
1532 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1533 wl->buf, sizeof(*rssi));
1534 if (cmd && !cmd->status && !cmd->cmd_status) {
1535 rssi = wl->buf;
1536 is->qual.level = be16_to_cpu(rssi->rssi);
1537 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1538 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1539 } else
1540 /* not associated */
1541 is->qual.updated = IW_QUAL_ALL_INVALID;
1542
1543 kfree(cmd);
1544 pr_debug("%s: ->\n", __func__);
1545 return is;
1546 }
1547
1548 /*
1549 * scanning helpers
1550 */
1551 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan)
1552 {
1553 struct gelic_eurus_cmd *cmd;
1554 int ret = 0;
1555
1556 pr_debug("%s: <- always=%d\n", __func__, always_scan);
1557 if (down_interruptible(&wl->scan_lock))
1558 return -ERESTARTSYS;
1559
1560 /*
1561 * If already a scan in progress, do not trigger more
1562 */
1563 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1564 pr_debug("%s: scanning now\n", __func__);
1565 goto out;
1566 }
1567
1568 init_completion(&wl->scan_done);
1569 /*
1570 * If we have already a bss list, don't try to get new
1571 */
1572 if (!always_scan && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1573 pr_debug("%s: already has the list\n", __func__);
1574 complete(&wl->scan_done);
1575 goto out;
1576 }
1577 /*
1578 * issue start scan request
1579 */
1580 wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1581 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1582 NULL, 0);
1583 if (!cmd || cmd->status || cmd->cmd_status) {
1584 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1585 complete(&wl->scan_done);
1586 ret = -ENOMEM;
1587 goto out;
1588 }
1589 kfree(cmd);
1590 out:
1591 up(&wl->scan_lock);
1592 pr_debug("%s: ->\n", __func__);
1593 return ret;
1594 }
1595
1596 /*
1597 * retrieve scan result from the chip (hypervisor)
1598 * this function is invoked by schedule work.
1599 */
1600 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1601 {
1602 struct gelic_eurus_cmd *cmd = NULL;
1603 struct gelic_wl_scan_info *target, *tmp;
1604 struct gelic_wl_scan_info *oldest = NULL;
1605 struct gelic_eurus_scan_info *scan_info;
1606 unsigned int scan_info_size;
1607 union iwreq_data data;
1608 unsigned long this_time = jiffies;
1609 unsigned int data_len, i, found, r;
1610 DECLARE_MAC_BUF(mac);
1611
1612 pr_debug("%s:start\n", __func__);
1613 down(&wl->scan_lock);
1614
1615 if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1616 /*
1617 * stop() may be called while scanning, ignore result
1618 */
1619 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1620 __func__, wl->scan_stat);
1621 goto out;
1622 }
1623
1624 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1625 wl->buf, PAGE_SIZE);
1626 if (!cmd || cmd->status || cmd->cmd_status) {
1627 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1628 pr_info("%s:cmd failed\n", __func__);
1629 kfree(cmd);
1630 goto out;
1631 }
1632 data_len = cmd->size;
1633 pr_debug("%s: data_len = %d\n", __func__, data_len);
1634 kfree(cmd);
1635
1636 /* OK, bss list retrieved */
1637 wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1638
1639 /* mark all entries are old */
1640 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1641 target->valid = 0;
1642 /* expire too old entries */
1643 if (time_before(target->last_scanned + wl->scan_age,
1644 this_time)) {
1645 kfree(target->hwinfo);
1646 target->hwinfo = NULL;
1647 list_move_tail(&target->list, &wl->network_free_list);
1648 }
1649 }
1650
1651 /* put them in the newtork_list */
1652 for (i = 0, scan_info_size = 0, scan_info = wl->buf;
1653 scan_info_size < data_len;
1654 i++, scan_info_size += be16_to_cpu(scan_info->size),
1655 scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1656 pr_debug("%s:size=%d bssid=%s scan_info=%p\n", __func__,
1657 be16_to_cpu(scan_info->size),
1658 print_mac(mac, &scan_info->bssid[2]), scan_info);
1659
1660 /*
1661 * The wireless firmware may return invalid channel 0 and/or
1662 * invalid rate if the AP emits zero length SSID ie. As this
1663 * scan information is useless, ignore it
1664 */
1665 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1666 pr_debug("%s: invalid scan info\n", __func__);
1667 continue;
1668 }
1669
1670 found = 0;
1671 oldest = NULL;
1672 list_for_each_entry(target, &wl->network_list, list) {
1673 if (!compare_ether_addr(&target->hwinfo->bssid[2],
1674 &scan_info->bssid[2])) {
1675 found = 1;
1676 pr_debug("%s: same BBS found scanned list\n",
1677 __func__);
1678 break;
1679 }
1680 if (!oldest ||
1681 (target->last_scanned < oldest->last_scanned))
1682 oldest = target;
1683 }
1684
1685 if (!found) {
1686 /* not found in the list */
1687 if (list_empty(&wl->network_free_list)) {
1688 /* expire oldest */
1689 target = oldest;
1690 } else {
1691 target = list_entry(wl->network_free_list.next,
1692 struct gelic_wl_scan_info,
1693 list);
1694 }
1695 }
1696
1697 /* update the item */
1698 target->last_scanned = this_time;
1699 target->valid = 1;
1700 target->eurus_index = i;
1701 kfree(target->hwinfo);
1702 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1703 GFP_KERNEL);
1704 if (!target->hwinfo) {
1705 pr_info("%s: kzalloc failed\n", __func__);
1706 continue;
1707 }
1708 /* copy hw scan info */
1709 memcpy(target->hwinfo, scan_info, scan_info->size);
1710 target->essid_len = strnlen(scan_info->essid,
1711 sizeof(scan_info->essid));
1712 target->rate_len = 0;
1713 for (r = 0; r < MAX_RATES_LENGTH; r++)
1714 if (scan_info->rate[r])
1715 target->rate_len++;
1716 if (8 < target->rate_len)
1717 pr_info("%s: AP returns %d rates\n", __func__,
1718 target->rate_len);
1719 target->rate_ext_len = 0;
1720 for (r = 0; r < MAX_RATES_EX_LENGTH; r++)
1721 if (scan_info->ext_rate[r])
1722 target->rate_ext_len++;
1723 list_move_tail(&target->list, &wl->network_list);
1724 }
1725 memset(&data, 0, sizeof(data));
1726 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1727 NULL);
1728 out:
1729 complete(&wl->scan_done);
1730 up(&wl->scan_lock);
1731 pr_debug("%s:end\n", __func__);
1732 }
1733
1734 /*
1735 * Select an appropriate bss from current scan list regarding
1736 * current settings from userspace.
1737 * The caller must hold wl->scan_lock,
1738 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1739 */
1740 static void update_best(struct gelic_wl_scan_info **best,
1741 struct gelic_wl_scan_info *candid,
1742 int *best_weight,
1743 int *weight)
1744 {
1745 if (*best_weight < ++(*weight)) {
1746 *best_weight = *weight;
1747 *best = candid;
1748 }
1749 }
1750
1751 static
1752 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1753 {
1754 struct gelic_wl_scan_info *scan_info;
1755 struct gelic_wl_scan_info *best_bss;
1756 int weight, best_weight;
1757 u16 security;
1758 DECLARE_MAC_BUF(mac);
1759
1760 pr_debug("%s: <-\n", __func__);
1761
1762 best_bss = NULL;
1763 best_weight = 0;
1764
1765 list_for_each_entry(scan_info, &wl->network_list, list) {
1766 pr_debug("%s: station %p\n", __func__, scan_info);
1767
1768 if (!scan_info->valid) {
1769 pr_debug("%s: station invalid\n", __func__);
1770 continue;
1771 }
1772
1773 /* If bss specified, check it only */
1774 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1775 if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1776 wl->bssid)) {
1777 best_bss = scan_info;
1778 pr_debug("%s: bssid matched\n", __func__);
1779 break;
1780 } else {
1781 pr_debug("%s: bssid unmached\n", __func__);
1782 continue;
1783 }
1784 }
1785
1786 weight = 0;
1787
1788 /* security */
1789 security = be16_to_cpu(scan_info->hwinfo->security) &
1790 GELIC_EURUS_SCAN_SEC_MASK;
1791 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1792 if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1793 update_best(&best_bss, scan_info,
1794 &best_weight, &weight);
1795 else
1796 continue;
1797 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1798 if (security == GELIC_EURUS_SCAN_SEC_WPA)
1799 update_best(&best_bss, scan_info,
1800 &best_weight, &weight);
1801 else
1802 continue;
1803 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1804 wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1805 if (security == GELIC_EURUS_SCAN_SEC_WEP)
1806 update_best(&best_bss, scan_info,
1807 &best_weight, &weight);
1808 else
1809 continue;
1810 }
1811
1812 /* If ESSID is set, check it */
1813 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1814 if ((scan_info->essid_len == wl->essid_len) &&
1815 !strncmp(wl->essid,
1816 scan_info->hwinfo->essid,
1817 scan_info->essid_len))
1818 update_best(&best_bss, scan_info,
1819 &best_weight, &weight);
1820 else
1821 continue;
1822 }
1823 }
1824
1825 #ifdef DEBUG
1826 pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1827 if (best_bss) {
1828 pr_debug("%s:addr=%s\n", __func__,
1829 print_mac(mac, &best_bss->hwinfo->bssid[2]));
1830 }
1831 #endif
1832 return best_bss;
1833 }
1834
1835 /*
1836 * Setup WEP configuration to the chip
1837 * The caller must hold wl->scan_lock,
1838 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1839 */
1840 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1841 {
1842 unsigned int i;
1843 struct gelic_eurus_wep_cfg *wep;
1844 struct gelic_eurus_cmd *cmd;
1845 int wep104 = 0;
1846 int have_key = 0;
1847 int ret = 0;
1848
1849 pr_debug("%s: <-\n", __func__);
1850 /* we can assume no one should uses the buffer */
1851 wep = wl->buf;
1852 memset(wep, 0, sizeof(*wep));
1853
1854 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1855 pr_debug("%s: WEP mode\n", __func__);
1856 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1857 if (!test_bit(i, &wl->key_enabled))
1858 continue;
1859
1860 pr_debug("%s: key#%d enabled\n", __func__, i);
1861 have_key = 1;
1862 if (wl->key_len[i] == 13)
1863 wep104 = 1;
1864 else if (wl->key_len[i] != 5) {
1865 pr_info("%s: wrong wep key[%d]=%d\n",
1866 __func__, i, wl->key_len[i]);
1867 ret = -EINVAL;
1868 goto out;
1869 }
1870 memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1871 }
1872
1873 if (!have_key) {
1874 pr_info("%s: all wep key disabled\n", __func__);
1875 ret = -EINVAL;
1876 goto out;
1877 }
1878
1879 if (wep104) {
1880 pr_debug("%s: 104bit key\n", __func__);
1881 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1882 } else {
1883 pr_debug("%s: 40bit key\n", __func__);
1884 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1885 }
1886 } else {
1887 pr_debug("%s: NO encryption\n", __func__);
1888 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1889 }
1890
1891 /* issue wep setup */
1892 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1893 wep, sizeof(*wep));
1894 if (!cmd)
1895 ret = -ENOMEM;
1896 else if (cmd->status || cmd->cmd_status)
1897 ret = -ENXIO;
1898
1899 kfree(cmd);
1900 out:
1901 pr_debug("%s: ->\n", __func__);
1902 return ret;
1903 }
1904
1905 #ifdef DEBUG
1906 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1907 {
1908 switch (sec) {
1909 case GELIC_EURUS_WPA_SEC_NONE:
1910 return "NONE";
1911 break;
1912 case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1913 return "WPA_TKIP_TKIP";
1914 break;
1915 case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1916 return "WPA_TKIP_AES";
1917 break;
1918 case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1919 return "WPA_AES_AES";
1920 break;
1921 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1922 return "WPA2_TKIP_TKIP";
1923 break;
1924 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1925 return "WPA2_TKIP_AES";
1926 break;
1927 case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1928 return "WPA2_AES_AES";
1929 break;
1930 }
1931 return "";
1932 };
1933 #endif
1934
1935 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1936 {
1937 struct gelic_eurus_wpa_cfg *wpa;
1938 struct gelic_eurus_cmd *cmd;
1939 u16 security;
1940 int ret = 0;
1941
1942 pr_debug("%s: <-\n", __func__);
1943 /* we can assume no one should uses the buffer */
1944 wpa = wl->buf;
1945 memset(wpa, 0, sizeof(*wpa));
1946
1947 if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1948 pr_info("%s: PSK not configured yet\n", __func__);
1949
1950 /* copy key */
1951 memcpy(wpa->psk, wl->psk, wl->psk_len);
1952
1953 /* set security level */
1954 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1955 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1956 security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1957 } else {
1958 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1959 precise_ie())
1960 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1961 else
1962 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1963 }
1964 } else {
1965 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1966 security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1967 } else {
1968 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1969 precise_ie())
1970 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1971 else
1972 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1973 }
1974 }
1975 wpa->security = cpu_to_be16(security);
1976
1977 /* PSK type */
1978 wpa->psk_type = cpu_to_be16(wl->psk_type);
1979 #ifdef DEBUG
1980 pr_debug("%s: sec=%s psktype=%s\nn", __func__,
1981 wpasecstr(wpa->security),
1982 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1983 "BIN" : "passphrase");
1984 #if 0
1985 /*
1986 * don't enable here if you plan to submit
1987 * the debug log because this dumps your precious
1988 * passphrase/key.
1989 */
1990 pr_debug("%s: psk=%s\n",
1991 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1992 (char *)"N/A" : (char *)wpa->psk);
1993 #endif
1994 #endif
1995 /* issue wpa setup */
1996 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1997 wpa, sizeof(*wpa));
1998 if (!cmd)
1999 ret = -ENOMEM;
2000 else if (cmd->status || cmd->cmd_status)
2001 ret = -ENXIO;
2002 kfree(cmd);
2003 pr_debug("%s: --> %d\n", __func__, ret);
2004 return ret;
2005 }
2006
2007 /*
2008 * Start association. caller must hold assoc_stat_lock
2009 */
2010 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
2011 struct gelic_wl_scan_info *bss)
2012 {
2013 struct gelic_eurus_cmd *cmd;
2014 struct gelic_eurus_common_cfg *common;
2015 int ret = 0;
2016 unsigned long rc;
2017
2018 pr_debug("%s: <-\n", __func__);
2019
2020 /* do common config */
2021 common = wl->buf;
2022 memset(common, 0, sizeof(*common));
2023 common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
2024 common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
2025
2026 common->scan_index = cpu_to_be16(bss->eurus_index);
2027 switch (wl->auth_method) {
2028 case GELIC_EURUS_AUTH_OPEN:
2029 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
2030 break;
2031 case GELIC_EURUS_AUTH_SHARED:
2032 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
2033 break;
2034 }
2035
2036 #ifdef DEBUG
2037 scan_list_dump(wl);
2038 #endif
2039 pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
2040 be16_to_cpu(common->scan_index),
2041 be16_to_cpu(common->bss_type),
2042 be16_to_cpu(common->auth_method));
2043
2044 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
2045 common, sizeof(*common));
2046 if (!cmd || cmd->status || cmd->cmd_status) {
2047 ret = -ENOMEM;
2048 kfree(cmd);
2049 goto out;
2050 }
2051 kfree(cmd);
2052
2053 /* WEP/WPA */
2054 switch (wl->wpa_level) {
2055 case GELIC_WL_WPA_LEVEL_NONE:
2056 /* If WEP or no security, setup WEP config */
2057 ret = gelic_wl_do_wep_setup(wl);
2058 break;
2059 case GELIC_WL_WPA_LEVEL_WPA:
2060 case GELIC_WL_WPA_LEVEL_WPA2:
2061 ret = gelic_wl_do_wpa_setup(wl);
2062 break;
2063 };
2064
2065 if (ret) {
2066 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
2067 ret);
2068 }
2069
2070 /* start association */
2071 init_completion(&wl->assoc_done);
2072 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2073 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2074 NULL, 0);
2075 if (!cmd || cmd->status || cmd->cmd_status) {
2076 pr_debug("%s: assoc request failed\n", __func__);
2077 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2078 kfree(cmd);
2079 ret = -ENOMEM;
2080 gelic_wl_send_iwap_event(wl, NULL);
2081 goto out;
2082 }
2083 kfree(cmd);
2084
2085 /* wait for connected event */
2086 rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2087
2088 if (!rc) {
2089 /* timeouted. Maybe key or cyrpt mode is wrong */
2090 pr_info("%s: connect timeout \n", __func__);
2091 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2092 NULL, 0);
2093 kfree(cmd);
2094 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2095 gelic_wl_send_iwap_event(wl, NULL);
2096 ret = -ENXIO;
2097 } else {
2098 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2099 /* copy bssid */
2100 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2101
2102 /* send connect event */
2103 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2104 pr_info("%s: connected\n", __func__);
2105 }
2106 out:
2107 pr_debug("%s: ->\n", __func__);
2108 return ret;
2109 }
2110
2111 /*
2112 * connected event
2113 */
2114 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2115 u64 event)
2116 {
2117 u64 desired_event = 0;
2118
2119 switch (wl->wpa_level) {
2120 case GELIC_WL_WPA_LEVEL_NONE:
2121 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2122 break;
2123 case GELIC_WL_WPA_LEVEL_WPA:
2124 case GELIC_WL_WPA_LEVEL_WPA2:
2125 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2126 break;
2127 }
2128
2129 if (desired_event == event) {
2130 pr_debug("%s: completed \n", __func__);
2131 complete(&wl->assoc_done);
2132 netif_carrier_on(port_to_netdev(wl_port(wl)));
2133 } else
2134 pr_debug("%s: event %#lx under wpa\n",
2135 __func__, event);
2136 }
2137
2138 /*
2139 * disconnect event
2140 */
2141 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2142 u64 event)
2143 {
2144 struct gelic_eurus_cmd *cmd;
2145 int lock;
2146
2147 /*
2148 * If we fall here in the middle of association,
2149 * associate_bss() should be waiting for complation of
2150 * wl->assoc_done.
2151 * As it waits with timeout, just leave assoc_done
2152 * uncompleted, then it terminates with timeout
2153 */
2154 if (down_trylock(&wl->assoc_stat_lock)) {
2155 pr_debug("%s: already locked\n", __func__);
2156 lock = 0;
2157 } else {
2158 pr_debug("%s: obtain lock\n", __func__);
2159 lock = 1;
2160 }
2161
2162 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2163 kfree(cmd);
2164
2165 /* send disconnected event to the supplicant */
2166 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2167 gelic_wl_send_iwap_event(wl, NULL);
2168
2169 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2170 netif_carrier_off(port_to_netdev(wl_port(wl)));
2171
2172 if (lock)
2173 up(&wl->assoc_stat_lock);
2174 }
2175 /*
2176 * event worker
2177 */
2178 #ifdef DEBUG
2179 static const char *eventstr(enum gelic_lv1_wl_event event)
2180 {
2181 static char buf[32];
2182 char *ret;
2183 if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2184 ret = "EURUS_READY";
2185 else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2186 ret = "SCAN_COMPLETED";
2187 else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2188 ret = "DEAUTH";
2189 else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2190 ret = "BEACON_LOST";
2191 else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2192 ret = "CONNECTED";
2193 else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2194 ret = "WPA_CONNECTED";
2195 else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2196 ret = "WPA_ERROR";
2197 else {
2198 sprintf(buf, "Unknown(%#x)", event);
2199 ret = buf;
2200 }
2201 return ret;
2202 }
2203 #else
2204 static const char *eventstr(enum gelic_lv1_wl_event event)
2205 {
2206 return NULL;
2207 }
2208 #endif
2209 static void gelic_wl_event_worker(struct work_struct *work)
2210 {
2211 struct gelic_wl_info *wl;
2212 struct gelic_port *port;
2213 u64 event, tmp;
2214 int status;
2215
2216 pr_debug("%s:start\n", __func__);
2217 wl = container_of(work, struct gelic_wl_info, event_work.work);
2218 port = wl_port(wl);
2219 while (1) {
2220 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2221 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2222 &event, &tmp);
2223 if (status) {
2224 if (status != LV1_NO_ENTRY)
2225 pr_debug("%s:wlan event failed %d\n",
2226 __func__, status);
2227 /* got all events */
2228 pr_debug("%s:end\n", __func__);
2229 return;
2230 }
2231 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2232 switch (event) {
2233 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2234 gelic_wl_scan_complete_event(wl);
2235 break;
2236 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2237 case GELIC_LV1_WL_EVENT_DEAUTH:
2238 gelic_wl_disconnect_event(wl, event);
2239 break;
2240 case GELIC_LV1_WL_EVENT_CONNECTED:
2241 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2242 gelic_wl_connected_event(wl, event);
2243 break;
2244 default:
2245 break;
2246 }
2247 } /* while */
2248 }
2249 /*
2250 * association worker
2251 */
2252 static void gelic_wl_assoc_worker(struct work_struct *work)
2253 {
2254 struct gelic_wl_info *wl;
2255
2256 struct gelic_wl_scan_info *best_bss;
2257 int ret;
2258
2259 wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2260
2261 down(&wl->assoc_stat_lock);
2262
2263 if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2264 goto out;
2265
2266 ret = gelic_wl_start_scan(wl, 0);
2267 if (ret == -ERESTARTSYS) {
2268 pr_debug("%s: scan start failed association\n", __func__);
2269 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2270 goto out;
2271 } else if (ret) {
2272 pr_info("%s: scan prerequisite failed\n", __func__);
2273 goto out;
2274 }
2275
2276 /*
2277 * Wait for bss scan completion
2278 * If we have scan list already, gelic_wl_start_scan()
2279 * returns OK and raises the complete. Thus,
2280 * it's ok to wait unconditionally here
2281 */
2282 wait_for_completion(&wl->scan_done);
2283
2284 pr_debug("%s: scan done\n", __func__);
2285 down(&wl->scan_lock);
2286 if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2287 gelic_wl_send_iwap_event(wl, NULL);
2288 pr_info("%s: no scan list. association failed\n", __func__);
2289 goto scan_lock_out;
2290 }
2291
2292 /* find best matching bss */
2293 best_bss = gelic_wl_find_best_bss(wl);
2294 if (!best_bss) {
2295 gelic_wl_send_iwap_event(wl, NULL);
2296 pr_info("%s: no bss matched. association failed\n", __func__);
2297 goto scan_lock_out;
2298 }
2299
2300 /* ok, do association */
2301 ret = gelic_wl_associate_bss(wl, best_bss);
2302 if (ret)
2303 pr_info("%s: association failed %d\n", __func__, ret);
2304 scan_lock_out:
2305 up(&wl->scan_lock);
2306 out:
2307 up(&wl->assoc_stat_lock);
2308 }
2309 /*
2310 * Interrupt handler
2311 * Called from the ethernet interrupt handler
2312 * Processes wireless specific virtual interrupts only
2313 */
2314 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2315 {
2316 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2317
2318 if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2319 pr_debug("%s:cmd complete\n", __func__);
2320 complete(&wl->cmd_done_intr);
2321 }
2322
2323 if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2324 pr_debug("%s:event received\n", __func__);
2325 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2326 }
2327 }
2328
2329 /*
2330 * driver helpers
2331 */
2332 #define IW_IOCTL(n) [(n) - SIOCSIWCOMMIT]
2333 static const iw_handler gelic_wl_wext_handler[] =
2334 {
2335 IW_IOCTL(SIOCGIWNAME) = gelic_wl_get_name,
2336 IW_IOCTL(SIOCGIWRANGE) = gelic_wl_get_range,
2337 IW_IOCTL(SIOCSIWSCAN) = gelic_wl_set_scan,
2338 IW_IOCTL(SIOCGIWSCAN) = gelic_wl_get_scan,
2339 IW_IOCTL(SIOCSIWAUTH) = gelic_wl_set_auth,
2340 IW_IOCTL(SIOCGIWAUTH) = gelic_wl_get_auth,
2341 IW_IOCTL(SIOCSIWESSID) = gelic_wl_set_essid,
2342 IW_IOCTL(SIOCGIWESSID) = gelic_wl_get_essid,
2343 IW_IOCTL(SIOCSIWENCODE) = gelic_wl_set_encode,
2344 IW_IOCTL(SIOCGIWENCODE) = gelic_wl_get_encode,
2345 IW_IOCTL(SIOCSIWAP) = gelic_wl_set_ap,
2346 IW_IOCTL(SIOCGIWAP) = gelic_wl_get_ap,
2347 IW_IOCTL(SIOCSIWENCODEEXT) = gelic_wl_set_encodeext,
2348 IW_IOCTL(SIOCGIWENCODEEXT) = gelic_wl_get_encodeext,
2349 IW_IOCTL(SIOCSIWMODE) = gelic_wl_set_mode,
2350 IW_IOCTL(SIOCGIWMODE) = gelic_wl_get_mode,
2351 IW_IOCTL(SIOCGIWNICKN) = gelic_wl_get_nick,
2352 };
2353
2354 static struct iw_priv_args gelic_wl_private_args[] =
2355 {
2356 {
2357 .cmd = GELIC_WL_PRIV_SET_PSK,
2358 .set_args = IW_PRIV_TYPE_CHAR |
2359 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2360 .name = "set_psk"
2361 },
2362 {
2363 .cmd = GELIC_WL_PRIV_GET_PSK,
2364 .get_args = IW_PRIV_TYPE_CHAR |
2365 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2366 .name = "get_psk"
2367 }
2368 };
2369
2370 static const iw_handler gelic_wl_private_handler[] =
2371 {
2372 gelic_wl_priv_set_psk,
2373 gelic_wl_priv_get_psk,
2374 };
2375
2376 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2377 .num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2378 .standard = gelic_wl_wext_handler,
2379 .get_wireless_stats = gelic_wl_get_wireless_stats,
2380 .num_private = ARRAY_SIZE(gelic_wl_private_handler),
2381 .num_private_args = ARRAY_SIZE(gelic_wl_private_args),
2382 .private = gelic_wl_private_handler,
2383 .private_args = gelic_wl_private_args,
2384 };
2385
2386 static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2387 {
2388 struct net_device *netdev;
2389 struct gelic_port *port;
2390 struct gelic_wl_info *wl;
2391 unsigned int i;
2392
2393 pr_debug("%s:start\n", __func__);
2394 netdev = alloc_etherdev(sizeof(struct gelic_port) +
2395 sizeof(struct gelic_wl_info));
2396 pr_debug("%s: netdev =%p card=%p \np", __func__, netdev, card);
2397 if (!netdev)
2398 return NULL;
2399
2400 strcpy(netdev->name, "wlan%d");
2401
2402 port = netdev_priv(netdev);
2403 port->netdev = netdev;
2404 port->card = card;
2405 port->type = GELIC_PORT_WIRELESS;
2406
2407 wl = port_wl(port);
2408 pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2409
2410 /* allocate scan list */
2411 wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2412 GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2413
2414 if (!wl->networks)
2415 goto fail_bss;
2416
2417 wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2418 if (!wl->eurus_cmd_queue)
2419 goto fail_cmd_workqueue;
2420
2421 wl->event_queue = create_singlethread_workqueue("gelic_event");
2422 if (!wl->event_queue)
2423 goto fail_event_workqueue;
2424
2425 INIT_LIST_HEAD(&wl->network_free_list);
2426 INIT_LIST_HEAD(&wl->network_list);
2427 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2428 list_add_tail(&wl->networks[i].list,
2429 &wl->network_free_list);
2430 init_completion(&wl->cmd_done_intr);
2431
2432 INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2433 INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2434 init_MUTEX(&wl->scan_lock);
2435 init_MUTEX(&wl->assoc_stat_lock);
2436
2437 init_completion(&wl->scan_done);
2438 /* for the case that no scan request is issued and stop() is called */
2439 complete(&wl->scan_done);
2440
2441 spin_lock_init(&wl->lock);
2442
2443 wl->scan_age = 5*HZ; /* FIXME */
2444
2445 /* buffer for receiving scanned list etc */
2446 BUILD_BUG_ON(PAGE_SIZE <
2447 sizeof(struct gelic_eurus_scan_info) *
2448 GELIC_EURUS_MAX_SCAN);
2449 wl->buf = (void *)get_zeroed_page(GFP_KERNEL);
2450 if (!wl->buf) {
2451 pr_info("%s:buffer allocation failed\n", __func__);
2452 goto fail_getpage;
2453 }
2454 pr_debug("%s:end\n", __func__);
2455 return netdev;
2456
2457 fail_getpage:
2458 destroy_workqueue(wl->event_queue);
2459 fail_event_workqueue:
2460 destroy_workqueue(wl->eurus_cmd_queue);
2461 fail_cmd_workqueue:
2462 kfree(wl->networks);
2463 fail_bss:
2464 free_netdev(netdev);
2465 pr_debug("%s:end error\n", __func__);
2466 return NULL;
2467
2468 }
2469
2470 static void gelic_wl_free(struct gelic_wl_info *wl)
2471 {
2472 struct gelic_wl_scan_info *scan_info;
2473 unsigned int i;
2474
2475 pr_debug("%s: <-\n", __func__);
2476
2477 free_page((unsigned long)wl->buf);
2478
2479 pr_debug("%s: destroy queues\n", __func__);
2480 destroy_workqueue(wl->eurus_cmd_queue);
2481 destroy_workqueue(wl->event_queue);
2482
2483 scan_info = wl->networks;
2484 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2485 kfree(scan_info->hwinfo);
2486 kfree(wl->networks);
2487
2488 free_netdev(port_to_netdev(wl_port(wl)));
2489
2490 pr_debug("%s: ->\n", __func__);
2491 }
2492
2493 static int gelic_wl_try_associate(struct net_device *netdev)
2494 {
2495 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2496 int ret = -1;
2497 unsigned int i;
2498
2499 pr_debug("%s: <-\n", __func__);
2500
2501 /* check constraits for start association */
2502 /* for no access restriction AP */
2503 if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2504 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2505 &wl->stat))
2506 goto do_associate;
2507 else {
2508 pr_debug("%s: no wep, not configured\n", __func__);
2509 return ret;
2510 }
2511 }
2512
2513 /* for WEP, one of four keys should be set */
2514 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2515 /* one of keys set */
2516 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2517 if (test_bit(i, &wl->key_enabled))
2518 goto do_associate;
2519 }
2520 pr_debug("%s: WEP, but no key specified\n", __func__);
2521 return ret;
2522 }
2523
2524 /* for WPA[2], psk should be set */
2525 if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2526 (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2527 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2528 &wl->stat))
2529 goto do_associate;
2530 else {
2531 pr_debug("%s: AES/TKIP, but PSK not configured\n",
2532 __func__);
2533 return ret;
2534 }
2535 }
2536
2537 do_associate:
2538 ret = schedule_delayed_work(&wl->assoc_work, 0);
2539 pr_debug("%s: start association work %d\n", __func__, ret);
2540 return ret;
2541 }
2542
2543 /*
2544 * netdev handlers
2545 */
2546 static int gelic_wl_open(struct net_device *netdev)
2547 {
2548 struct gelic_card *card = netdev_card(netdev);
2549
2550 pr_debug("%s:->%p\n", __func__, netdev);
2551
2552 gelic_card_up(card);
2553
2554 /* try to associate */
2555 gelic_wl_try_associate(netdev);
2556
2557 netif_start_queue(netdev);
2558
2559 pr_debug("%s:<-\n", __func__);
2560 return 0;
2561 }
2562
2563 /*
2564 * reset state machine
2565 */
2566 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2567 {
2568 struct gelic_wl_scan_info *target;
2569 struct gelic_wl_scan_info *tmp;
2570
2571 /* empty scan list */
2572 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2573 list_move_tail(&target->list, &wl->network_free_list);
2574 }
2575 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2576
2577 /* clear configuration */
2578 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2579 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2580 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2581 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2582
2583 wl->key_enabled = 0;
2584 wl->current_key = 0;
2585
2586 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2587 wl->psk_len = 0;
2588
2589 wl->essid_len = 0;
2590 memset(wl->essid, 0, sizeof(wl->essid));
2591 memset(wl->bssid, 0, sizeof(wl->bssid));
2592 memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2593
2594 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2595
2596 memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2597 /* all status bit clear */
2598 wl->stat = 0;
2599 return 0;
2600 }
2601
2602 /*
2603 * Tell eurus to terminate association
2604 */
2605 static void gelic_wl_disconnect(struct net_device *netdev)
2606 {
2607 struct gelic_port *port = netdev_priv(netdev);
2608 struct gelic_wl_info *wl = port_wl(port);
2609 struct gelic_eurus_cmd *cmd;
2610
2611 /*
2612 * If scann process is running on chip,
2613 * further requests will be rejected
2614 */
2615 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2616 wait_for_completion_timeout(&wl->scan_done, HZ);
2617
2618 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2619 kfree(cmd);
2620 gelic_wl_send_iwap_event(wl, NULL);
2621 };
2622
2623 static int gelic_wl_stop(struct net_device *netdev)
2624 {
2625 struct gelic_port *port = netdev_priv(netdev);
2626 struct gelic_wl_info *wl = port_wl(port);
2627 struct gelic_card *card = netdev_card(netdev);
2628
2629 pr_debug("%s:<-\n", __func__);
2630
2631 /*
2632 * Cancel pending association work.
2633 * event work can run after netdev down
2634 */
2635 cancel_delayed_work(&wl->assoc_work);
2636
2637 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2638 gelic_wl_disconnect(netdev);
2639
2640 /* reset our state machine */
2641 gelic_wl_reset_state(wl);
2642
2643 netif_stop_queue(netdev);
2644
2645 gelic_card_down(card);
2646
2647 pr_debug("%s:->\n", __func__);
2648 return 0;
2649 }
2650
2651 /* -- */
2652
2653 static struct ethtool_ops gelic_wl_ethtool_ops = {
2654 .get_drvinfo = gelic_net_get_drvinfo,
2655 .get_link = gelic_wl_get_link,
2656 .get_tx_csum = ethtool_op_get_tx_csum,
2657 .set_tx_csum = ethtool_op_set_tx_csum,
2658 .get_rx_csum = gelic_net_get_rx_csum,
2659 .set_rx_csum = gelic_net_set_rx_csum,
2660 };
2661
2662 static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2663 {
2664 struct gelic_wl_info *wl;
2665 wl = port_wl(netdev_priv(netdev));
2666 BUG_ON(!wl);
2667 netdev->open = &gelic_wl_open;
2668 netdev->stop = &gelic_wl_stop;
2669 netdev->hard_start_xmit = &gelic_net_xmit;
2670 netdev->set_multicast_list = &gelic_net_set_multi;
2671 netdev->change_mtu = &gelic_net_change_mtu;
2672 netdev->wireless_data = &wl->wireless_data;
2673 netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2674 /* tx watchdog */
2675 netdev->tx_timeout = &gelic_net_tx_timeout;
2676 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2677
2678 netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2679 #ifdef CONFIG_NET_POLL_CONTROLLER
2680 netdev->poll_controller = gelic_net_poll_controller;
2681 #endif
2682 }
2683
2684 /*
2685 * driver probe/remove
2686 */
2687 int gelic_wl_driver_probe(struct gelic_card *card)
2688 {
2689 int ret;
2690 struct net_device *netdev;
2691
2692 pr_debug("%s:start\n", __func__);
2693
2694 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2695 return 0;
2696 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2697 return 0;
2698
2699 /* alloc netdevice for wireless */
2700 netdev = gelic_wl_alloc(card);
2701 if (!netdev)
2702 return -ENOMEM;
2703
2704 /* setup net_device structure */
2705 SET_NETDEV_DEV(netdev, &card->dev->core);
2706 gelic_wl_setup_netdev_ops(netdev);
2707
2708 /* setup some of net_device and register it */
2709 ret = gelic_net_setup_netdev(netdev, card);
2710 if (ret)
2711 goto fail_setup;
2712 card->netdev[GELIC_PORT_WIRELESS] = netdev;
2713
2714 /* add enable wireless interrupt */
2715 card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2716 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2717 /* to allow wireless commands while both interfaces are down */
2718 gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2719 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2720 pr_debug("%s:end\n", __func__);
2721 return 0;
2722
2723 fail_setup:
2724 gelic_wl_free(port_wl(netdev_port(netdev)));
2725
2726 return ret;
2727 }
2728
2729 int gelic_wl_driver_remove(struct gelic_card *card)
2730 {
2731 struct gelic_wl_info *wl;
2732 struct net_device *netdev;
2733
2734 pr_debug("%s:start\n", __func__);
2735
2736 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2737 return 0;
2738 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2739 return 0;
2740
2741 netdev = card->netdev[GELIC_PORT_WIRELESS];
2742 wl = port_wl(netdev_priv(netdev));
2743
2744 /* if the interface was not up, but associated */
2745 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2746 gelic_wl_disconnect(netdev);
2747
2748 complete(&wl->cmd_done_intr);
2749
2750 /* cancel all work queue */
2751 cancel_delayed_work(&wl->assoc_work);
2752 cancel_delayed_work(&wl->event_work);
2753 flush_workqueue(wl->eurus_cmd_queue);
2754 flush_workqueue(wl->event_queue);
2755
2756 unregister_netdev(netdev);
2757
2758 /* disable wireless interrupt */
2759 pr_debug("%s: disable intr\n", __func__);
2760 card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2761 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2762 /* free bss list, netdev*/
2763 gelic_wl_free(wl);
2764 pr_debug("%s:end\n", __func__);
2765 return 0;
2766 }
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