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slub: record page flag overlays explicitly
[linux-2.6/mini2440.git] / drivers / net / ps3_gelic_wireless.c
blob6b2dee0cf3a9b60cee6e22f275a804e65598f0dc
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 u8 *essid, size_t essid_len);
50 static int gelic_wl_try_associate(struct net_device *netdev);
51
52 /*
53 * tables
54 */
55
56 /* 802.11b/g channel to freq in MHz */
57 static const int channel_freq[] = {
58 2412, 2417, 2422, 2427, 2432,
59 2437, 2442, 2447, 2452, 2457,
60 2462, 2467, 2472, 2484
61 };
62 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
63
64 /* in bps */
65 static const int bitrate_list[] = {
66 1000000,
67 2000000,
68 5500000,
69 11000000,
70 6000000,
71 9000000,
72 12000000,
73 18000000,
74 24000000,
75 36000000,
76 48000000,
77 54000000
78 };
79 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
80
81 /*
82 * wpa2 support requires the hypervisor version 2.0 or later
83 */
84 static inline int wpa2_capable(void)
85 {
86 return (0 <= ps3_compare_firmware_version(2, 0, 0));
87 }
88
89 static inline int precise_ie(void)
90 {
91 return (0 <= ps3_compare_firmware_version(2, 2, 0));
92 }
93 /*
94 * post_eurus_cmd helpers
95 */
96 struct eurus_cmd_arg_info {
97 int pre_arg; /* command requres arg1, arg2 at POST COMMAND */
98 int post_arg; /* command requires arg1, arg2 at GET_RESULT */
99 };
100
101 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
102 [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
103 [GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
104 [GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
105 [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
106 [GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
107 [GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
108 [GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
109 [GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1},
110 [GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
111 };
112
113 #ifdef DEBUG
114 static const char *cmdstr(enum gelic_eurus_command ix)
115 {
116 switch (ix) {
117 case GELIC_EURUS_CMD_ASSOC:
118 return "ASSOC";
119 case GELIC_EURUS_CMD_DISASSOC:
120 return "DISASSOC";
121 case GELIC_EURUS_CMD_START_SCAN:
122 return "SCAN";
123 case GELIC_EURUS_CMD_GET_SCAN:
124 return "GET SCAN";
125 case GELIC_EURUS_CMD_SET_COMMON_CFG:
126 return "SET_COMMON_CFG";
127 case GELIC_EURUS_CMD_GET_COMMON_CFG:
128 return "GET_COMMON_CFG";
129 case GELIC_EURUS_CMD_SET_WEP_CFG:
130 return "SET_WEP_CFG";
131 case GELIC_EURUS_CMD_GET_WEP_CFG:
132 return "GET_WEP_CFG";
133 case GELIC_EURUS_CMD_SET_WPA_CFG:
134 return "SET_WPA_CFG";
135 case GELIC_EURUS_CMD_GET_WPA_CFG:
136 return "GET_WPA_CFG";
137 case GELIC_EURUS_CMD_GET_RSSI_CFG:
138 return "GET_RSSI";
139 default:
140 break;
141 }
142 return "";
143 };
144 #else
145 static inline const char *cmdstr(enum gelic_eurus_command ix)
146 {
147 return "";
148 }
149 #endif
150
151 /* synchronously do eurus commands */
152 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
153 {
154 struct gelic_eurus_cmd *cmd;
155 struct gelic_card *card;
156 struct gelic_wl_info *wl;
157
158 u64 arg1, arg2;
159
160 pr_debug("%s: <-\n", __func__);
161 cmd = container_of(work, struct gelic_eurus_cmd, work);
162 BUG_ON(cmd_info[cmd->cmd].pre_arg &&
163 cmd_info[cmd->cmd].post_arg);
164 wl = cmd->wl;
165 card = port_to_card(wl_port(wl));
166
167 if (cmd_info[cmd->cmd].pre_arg) {
168 arg1 = (cmd->buffer) ?
169 ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
170 0;
171 arg2 = cmd->buf_size;
172 } else {
173 arg1 = 0;
174 arg2 = 0;
175 }
176 init_completion(&wl->cmd_done_intr);
177 pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
178 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
179 GELIC_LV1_POST_WLAN_CMD,
180 cmd->cmd, arg1, arg2,
181 &cmd->tag, &cmd->size);
182 if (cmd->status) {
183 complete(&cmd->done);
184 pr_info("%s: cmd issue failed\n", __func__);
185 return;
186 }
187
188 wait_for_completion(&wl->cmd_done_intr);
189
190 if (cmd_info[cmd->cmd].post_arg) {
191 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
192 arg2 = cmd->buf_size;
193 } else {
194 arg1 = 0;
195 arg2 = 0;
196 }
197
198 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
199 GELIC_LV1_GET_WLAN_CMD_RESULT,
200 cmd->tag, arg1, arg2,
201 &cmd->cmd_status, &cmd->size);
202 #ifdef DEBUG
203 if (cmd->status || cmd->cmd_status) {
204 pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
205 cmd->tag, arg1, arg2);
206 pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
207 __func__, cmd->status, cmd->cmd_status, cmd->size);
208 }
209 #endif
210 complete(&cmd->done);
211 pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
212 }
213
214 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
215 unsigned int eurus_cmd,
216 void *buffer,
217 unsigned int buf_size)
218 {
219 struct gelic_eurus_cmd *cmd;
220
221 /* allocate cmd */
222 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
223 if (!cmd)
224 return NULL;
225
226 /* initialize members */
227 cmd->cmd = eurus_cmd;
228 cmd->buffer = buffer;
229 cmd->buf_size = buf_size;
230 cmd->wl = wl;
231 INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
232 init_completion(&cmd->done);
233 queue_work(wl->eurus_cmd_queue, &cmd->work);
234
235 /* wait for command completion */
236 wait_for_completion(&cmd->done);
237
238 return cmd;
239 }
240
241 static u32 gelic_wl_get_link(struct net_device *netdev)
242 {
243 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
244 u32 ret;
245
246 pr_debug("%s: <-\n", __func__);
247 mutex_lock(&wl->assoc_stat_lock);
248 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
249 ret = 1;
250 else
251 ret = 0;
252 mutex_unlock(&wl->assoc_stat_lock);
253 pr_debug("%s: ->\n", __func__);
254 return ret;
255 }
256
257 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
258 {
259 union iwreq_data data;
260
261 memset(&data, 0, sizeof(data));
262 if (bssid)
263 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
264 data.ap_addr.sa_family = ARPHRD_ETHER;
265 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
266 &data, NULL);
267 }
268
269 /*
270 * wireless extension handlers and helpers
271 */
272
273 /* SIOGIWNAME */
274 static int gelic_wl_get_name(struct net_device *dev,
275 struct iw_request_info *info,
276 union iwreq_data *iwreq, char *extra)
277 {
278 strcpy(iwreq->name, "IEEE 802.11bg");
279 return 0;
280 }
281
282 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
283 {
284 struct gelic_card *card = port_to_card(wl_port(wl));
285 u64 ch_info_raw, tmp;
286 int status;
287
288 if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
289 status = lv1_net_control(bus_id(card), dev_id(card),
290 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
291 &ch_info_raw,
292 &tmp);
293 /* some fw versions may return error */
294 if (status) {
295 if (status != LV1_NO_ENTRY)
296 pr_info("%s: available ch unknown\n", __func__);
297 wl->ch_info = 0x07ff;/* 11 ch */
298 } else
299 /* 16 bits of MSB has available channels */
300 wl->ch_info = ch_info_raw >> 48;
301 }
302 return;
303 }
304
305 /* SIOGIWRANGE */
306 static int gelic_wl_get_range(struct net_device *netdev,
307 struct iw_request_info *info,
308 union iwreq_data *iwreq, char *extra)
309 {
310 struct iw_point *point = &iwreq->data;
311 struct iw_range *range = (struct iw_range *)extra;
312 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
313 unsigned int i, chs;
314
315 pr_debug("%s: <-\n", __func__);
316 point->length = sizeof(struct iw_range);
317 memset(range, 0, sizeof(struct iw_range));
318
319 range->we_version_compiled = WIRELESS_EXT;
320 range->we_version_source = 22;
321
322 /* available channels and frequencies */
323 gelic_wl_get_ch_info(wl);
324
325 for (i = 0, chs = 0;
326 i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
327 if (wl->ch_info & (1 << i)) {
328 range->freq[chs].i = i + 1;
329 range->freq[chs].m = channel_freq[i];
330 range->freq[chs].e = 6;
331 chs++;
332 }
333 range->num_frequency = chs;
334 range->old_num_frequency = chs;
335 range->num_channels = chs;
336 range->old_num_channels = chs;
337
338 /* bitrates */
339 for (i = 0; i < NUM_BITRATES; i++)
340 range->bitrate[i] = bitrate_list[i];
341 range->num_bitrates = i;
342
343 /* signal levels */
344 range->max_qual.qual = 100; /* relative value */
345 range->max_qual.level = 100;
346 range->avg_qual.qual = 50;
347 range->avg_qual.level = 50;
348 range->sensitivity = 0;
349
350 /* Event capability */
351 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
352 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
353 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
354
355 /* encryption capability */
356 range->enc_capa = IW_ENC_CAPA_WPA |
357 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
358 IW_ENC_CAPA_4WAY_HANDSHAKE;
359 if (wpa2_capable())
360 range->enc_capa |= IW_ENC_CAPA_WPA2;
361 range->encoding_size[0] = 5; /* 40bit WEP */
362 range->encoding_size[1] = 13; /* 104bit WEP */
363 range->encoding_size[2] = 32; /* WPA-PSK */
364 range->num_encoding_sizes = 3;
365 range->max_encoding_tokens = GELIC_WEP_KEYS;
366
367 /* scan capability */
368 range->scan_capa = IW_SCAN_CAPA_ESSID;
369
370 pr_debug("%s: ->\n", __func__);
371 return 0;
372
373 }
374
375 /* SIOC{G,S}IWSCAN */
376 static int gelic_wl_set_scan(struct net_device *netdev,
377 struct iw_request_info *info,
378 union iwreq_data *wrqu, char *extra)
379 {
380 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
381 struct iw_scan_req *req;
382 u8 *essid = NULL;
383 size_t essid_len = 0;
384
385 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
386 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
387 req = (struct iw_scan_req*)extra;
388 essid = req->essid;
389 essid_len = req->essid_len;
390 pr_debug("%s: ESSID scan =%s\n", __func__, essid);
391 }
392 return gelic_wl_start_scan(wl, 1, essid, essid_len);
393 }
394
395 #define OUI_LEN 3
396 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
397 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
398
399 /*
400 * synthesize WPA/RSN IE data
401 * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
402 * for the format
403 */
404 static size_t gelic_wl_synthesize_ie(u8 *buf,
405 struct gelic_eurus_scan_info *scan)
406 {
407
408 const u8 *oui_header;
409 u8 *start = buf;
410 int rsn;
411 int ccmp;
412
413 pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
414 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
415 case GELIC_EURUS_SCAN_SEC_WPA:
416 rsn = 0;
417 break;
418 case GELIC_EURUS_SCAN_SEC_WPA2:
419 rsn = 1;
420 break;
421 default:
422 /* WEP or none. No IE returned */
423 return 0;
424 }
425
426 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
427 case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
428 ccmp = 0;
429 break;
430 case GELIC_EURUS_SCAN_SEC_WPA_AES:
431 ccmp = 1;
432 break;
433 default:
434 if (rsn) {
435 ccmp = 1;
436 pr_info("%s: no cipher info. defaulted to CCMP\n",
437 __func__);
438 } else {
439 ccmp = 0;
440 pr_info("%s: no cipher info. defaulted to TKIP\n",
441 __func__);
442 }
443 }
444
445 if (rsn)
446 oui_header = rsn_oui;
447 else
448 oui_header = wpa_oui;
449
450 /* element id */
451 if (rsn)
452 *buf++ = MFIE_TYPE_RSN;
453 else
454 *buf++ = MFIE_TYPE_GENERIC;
455
456 /* length filed; set later */
457 buf++;
458
459 /* wpa special header */
460 if (!rsn) {
461 memcpy(buf, wpa_oui, OUI_LEN);
462 buf += OUI_LEN;
463 *buf++ = 0x01;
464 }
465
466 /* version */
467 *buf++ = 0x01; /* version 1.0 */
468 *buf++ = 0x00;
469
470 /* group cipher */
471 memcpy(buf, oui_header, OUI_LEN);
472 buf += OUI_LEN;
473
474 if (ccmp)
475 *buf++ = 0x04; /* CCMP */
476 else
477 *buf++ = 0x02; /* TKIP */
478
479 /* pairwise key count always 1 */
480 *buf++ = 0x01;
481 *buf++ = 0x00;
482
483 /* pairwise key suit */
484 memcpy(buf, oui_header, OUI_LEN);
485 buf += OUI_LEN;
486 if (ccmp)
487 *buf++ = 0x04; /* CCMP */
488 else
489 *buf++ = 0x02; /* TKIP */
490
491 /* AKM count is 1 */
492 *buf++ = 0x01;
493 *buf++ = 0x00;
494
495 /* AKM suite is assumed as PSK*/
496 memcpy(buf, oui_header, OUI_LEN);
497 buf += OUI_LEN;
498 *buf++ = 0x02; /* PSK */
499
500 /* RSN capabilities is 0 */
501 *buf++ = 0x00;
502 *buf++ = 0x00;
503
504 /* set length field */
505 start[1] = (buf - start - 2);
506
507 pr_debug("%s: ->\n", __func__);
508 return (buf - start);
509 }
510
511 struct ie_item {
512 u8 *data;
513 u8 len;
514 };
515
516 struct ie_info {
517 struct ie_item wpa;
518 struct ie_item rsn;
519 };
520
521 static void gelic_wl_parse_ie(u8 *data, size_t len,
522 struct ie_info *ie_info)
523 {
524 size_t data_left = len;
525 u8 *pos = data;
526 u8 item_len;
527 u8 item_id;
528
529 pr_debug("%s: data=%p len=%ld \n", __func__,
530 data, len);
531 memset(ie_info, 0, sizeof(struct ie_info));
532
533 while (2 <= data_left) {
534 item_id = *pos++;
535 item_len = *pos++;
536 data_left -= 2;
537
538 if (data_left < item_len)
539 break;
540
541 switch (item_id) {
542 case MFIE_TYPE_GENERIC:
543 if ((OUI_LEN + 1 <= item_len) &&
544 !memcmp(pos, wpa_oui, OUI_LEN) &&
545 pos[OUI_LEN] == 0x01) {
546 ie_info->wpa.data = pos - 2;
547 ie_info->wpa.len = item_len + 2;
548 }
549 break;
550 case MFIE_TYPE_RSN:
551 ie_info->rsn.data = pos - 2;
552 /* length includes the header */
553 ie_info->rsn.len = item_len + 2;
554 break;
555 default:
556 pr_debug("%s: ignore %#x,%d\n", __func__,
557 item_id, item_len);
558 break;
559 }
560 pos += item_len;
561 data_left -= item_len;
562 }
563 pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
564 ie_info->wpa.data, ie_info->wpa.len,
565 ie_info->rsn.data, ie_info->rsn.len);
566 }
567
568
569 /*
570 * translate the scan informations from hypervisor to a
571 * independent format
572 */
573 static char *gelic_wl_translate_scan(struct net_device *netdev,
574 struct iw_request_info *info,
575 char *ev,
576 char *stop,
577 struct gelic_wl_scan_info *network)
578 {
579 struct iw_event iwe;
580 struct gelic_eurus_scan_info *scan = network->hwinfo;
581 char *tmp;
582 u8 rate;
583 unsigned int i, j, len;
584 u8 buf[MAX_WPA_IE_LEN];
585
586 pr_debug("%s: <-\n", __func__);
587
588 /* first entry should be AP's mac address */
589 iwe.cmd = SIOCGIWAP;
590 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
591 memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
592 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
593
594 /* ESSID */
595 iwe.cmd = SIOCGIWESSID;
596 iwe.u.data.flags = 1;
597 iwe.u.data.length = strnlen(scan->essid, 32);
598 ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
599
600 /* FREQUENCY */
601 iwe.cmd = SIOCGIWFREQ;
602 iwe.u.freq.m = be16_to_cpu(scan->channel);
603 iwe.u.freq.e = 0; /* table value in MHz */
604 iwe.u.freq.i = 0;
605 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
606
607 /* RATES */
608 iwe.cmd = SIOCGIWRATE;
609 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
610 /* to stuff multiple values in one event */
611 tmp = ev + iwe_stream_lcp_len(info);
612 /* put them in ascendant order (older is first) */
613 i = 0;
614 j = 0;
615 pr_debug("%s: rates=%d rate=%d\n", __func__,
616 network->rate_len, network->rate_ext_len);
617 while (i < network->rate_len) {
618 if (j < network->rate_ext_len &&
619 ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
620 rate = scan->ext_rate[j++] & 0x7f;
621 else
622 rate = scan->rate[i++] & 0x7f;
623 iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
624 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
625 IW_EV_PARAM_LEN);
626 }
627 while (j < network->rate_ext_len) {
628 iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
629 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
630 IW_EV_PARAM_LEN);
631 }
632 /* Check if we added any rate */
633 if (iwe_stream_lcp_len(info) < (tmp - ev))
634 ev = tmp;
635
636 /* ENCODE */
637 iwe.cmd = SIOCGIWENCODE;
638 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
639 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
640 else
641 iwe.u.data.flags = IW_ENCODE_DISABLED;
642 iwe.u.data.length = 0;
643 ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
644
645 /* MODE */
646 iwe.cmd = SIOCGIWMODE;
647 if (be16_to_cpu(scan->capability) &
648 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
649 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
650 iwe.u.mode = IW_MODE_MASTER;
651 else
652 iwe.u.mode = IW_MODE_ADHOC;
653 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
654 }
655
656 /* QUAL */
657 iwe.cmd = IWEVQUAL;
658 iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
659 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
660 iwe.u.qual.level = be16_to_cpu(scan->rssi);
661 iwe.u.qual.qual = be16_to_cpu(scan->rssi);
662 iwe.u.qual.noise = 0;
663 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
664
665 /* RSN */
666 memset(&iwe, 0, sizeof(iwe));
667 if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
668 /* If wpa[2] capable station, synthesize IE and put it */
669 len = gelic_wl_synthesize_ie(buf, scan);
670 if (len) {
671 iwe.cmd = IWEVGENIE;
672 iwe.u.data.length = len;
673 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
674 }
675 } else {
676 /* this scan info has IE data */
677 struct ie_info ie_info;
678 size_t data_len;
679
680 data_len = be16_to_cpu(scan->size) - sizeof(*scan);
681
682 gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
683
684 if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
685 memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
686 iwe.cmd = IWEVGENIE;
687 iwe.u.data.length = ie_info.wpa.len;
688 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
689 }
690
691 if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
692 memset(&iwe, 0, sizeof(iwe));
693 memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
694 iwe.cmd = IWEVGENIE;
695 iwe.u.data.length = ie_info.rsn.len;
696 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
697 }
698 }
699
700 pr_debug("%s: ->\n", __func__);
701 return ev;
702 }
703
704
705 static int gelic_wl_get_scan(struct net_device *netdev,
706 struct iw_request_info *info,
707 union iwreq_data *wrqu, char *extra)
708 {
709 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
710 struct gelic_wl_scan_info *scan_info;
711 char *ev = extra;
712 char *stop = ev + wrqu->data.length;
713 int ret = 0;
714 unsigned long this_time = jiffies;
715
716 pr_debug("%s: <-\n", __func__);
717 if (mutex_lock_interruptible(&wl->scan_lock))
718 return -EAGAIN;
719
720 switch (wl->scan_stat) {
721 case GELIC_WL_SCAN_STAT_SCANNING:
722 /* If a scan in progress, caller should call me again */
723 ret = -EAGAIN;
724 goto out;
725 break;
726
727 case GELIC_WL_SCAN_STAT_INIT:
728 /* last scan request failed or never issued */
729 ret = -ENODEV;
730 goto out;
731 break;
732 case GELIC_WL_SCAN_STAT_GOT_LIST:
733 /* ok, use current list */
734 break;
735 }
736
737 list_for_each_entry(scan_info, &wl->network_list, list) {
738 if (wl->scan_age == 0 ||
739 time_after(scan_info->last_scanned + wl->scan_age,
740 this_time))
741 ev = gelic_wl_translate_scan(netdev, info,
742 ev, stop,
743 scan_info);
744 else
745 pr_debug("%s:entry too old\n", __func__);
746
747 if (stop - ev <= IW_EV_ADDR_LEN) {
748 ret = -E2BIG;
749 goto out;
750 }
751 }
752
753 wrqu->data.length = ev - extra;
754 wrqu->data.flags = 0;
755 out:
756 mutex_unlock(&wl->scan_lock);
757 pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
758 return ret;
759 }
760
761 #ifdef DEBUG
762 static void scan_list_dump(struct gelic_wl_info *wl)
763 {
764 struct gelic_wl_scan_info *scan_info;
765 int i;
766 DECLARE_MAC_BUF(mac);
767
768 i = 0;
769 list_for_each_entry(scan_info, &wl->network_list, list) {
770 pr_debug("%s: item %d\n", __func__, i++);
771 pr_debug("valid=%d eurusindex=%d last=%lx\n",
772 scan_info->valid, scan_info->eurus_index,
773 scan_info->last_scanned);
774 pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
775 scan_info->rate_len, scan_info->rate_ext_len,
776 scan_info->essid_len);
777 /* -- */
778 pr_debug("bssid=%s\n",
779 print_mac(mac, &scan_info->hwinfo->bssid[2]));
780 pr_debug("essid=%s\n", scan_info->hwinfo->essid);
781 }
782 }
783 #endif
784
785 static int gelic_wl_set_auth(struct net_device *netdev,
786 struct iw_request_info *info,
787 union iwreq_data *data, char *extra)
788 {
789 struct iw_param *param = &data->param;
790 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
791 unsigned long irqflag;
792 int ret = 0;
793
794 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
795 spin_lock_irqsave(&wl->lock, irqflag);
796 switch (param->flags & IW_AUTH_INDEX) {
797 case IW_AUTH_WPA_VERSION:
798 if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
799 pr_debug("%s: NO WPA selected\n", __func__);
800 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
801 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
802 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
803 }
804 if (param->value & IW_AUTH_WPA_VERSION_WPA) {
805 pr_debug("%s: WPA version 1 selected\n", __func__);
806 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
807 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
808 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
809 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
810 }
811 if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
812 /*
813 * As the hypervisor may not tell the cipher
814 * information of the AP if it is WPA2,
815 * you will not decide suitable cipher from
816 * its beacon.
817 * You should have knowledge about the AP's
818 * cipher infomation in other method prior to
819 * the association.
820 */
821 if (!precise_ie())
822 pr_info("%s: WPA2 may not work\n", __func__);
823 if (wpa2_capable()) {
824 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
825 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
826 wl->pairwise_cipher_method =
827 GELIC_WL_CIPHER_AES;
828 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
829 } else
830 ret = -EINVAL;
831 }
832 break;
833
834 case IW_AUTH_CIPHER_PAIRWISE:
835 if (param->value &
836 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
837 pr_debug("%s: WEP selected\n", __func__);
838 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
839 }
840 if (param->value & IW_AUTH_CIPHER_TKIP) {
841 pr_debug("%s: TKIP selected\n", __func__);
842 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
843 }
844 if (param->value & IW_AUTH_CIPHER_CCMP) {
845 pr_debug("%s: CCMP selected\n", __func__);
846 wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
847 }
848 if (param->value & IW_AUTH_CIPHER_NONE) {
849 pr_debug("%s: no auth selected\n", __func__);
850 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
851 }
852 break;
853 case IW_AUTH_CIPHER_GROUP:
854 if (param->value &
855 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
856 pr_debug("%s: WEP selected\n", __func__);
857 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
858 }
859 if (param->value & IW_AUTH_CIPHER_TKIP) {
860 pr_debug("%s: TKIP selected\n", __func__);
861 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
862 }
863 if (param->value & IW_AUTH_CIPHER_CCMP) {
864 pr_debug("%s: CCMP selected\n", __func__);
865 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
866 }
867 if (param->value & IW_AUTH_CIPHER_NONE) {
868 pr_debug("%s: no auth selected\n", __func__);
869 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
870 }
871 break;
872 case IW_AUTH_80211_AUTH_ALG:
873 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
874 pr_debug("%s: shared key specified\n", __func__);
875 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
876 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
877 pr_debug("%s: open system specified\n", __func__);
878 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
879 } else
880 ret = -EINVAL;
881 break;
882
883 case IW_AUTH_WPA_ENABLED:
884 if (param->value) {
885 pr_debug("%s: WPA enabled\n", __func__);
886 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
887 } else {
888 pr_debug("%s: WPA disabled\n", __func__);
889 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
890 }
891 break;
892
893 case IW_AUTH_KEY_MGMT:
894 if (param->value & IW_AUTH_KEY_MGMT_PSK)
895 break;
896 /* intentionally fall through */
897 default:
898 ret = -EOPNOTSUPP;
899 break;
900 };
901
902 if (!ret)
903 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
904
905 spin_unlock_irqrestore(&wl->lock, irqflag);
906 pr_debug("%s: -> %d\n", __func__, ret);
907 return ret;
908 }
909
910 static int gelic_wl_get_auth(struct net_device *netdev,
911 struct iw_request_info *info,
912 union iwreq_data *iwreq, char *extra)
913 {
914 struct iw_param *param = &iwreq->param;
915 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
916 unsigned long irqflag;
917 int ret = 0;
918
919 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
920 spin_lock_irqsave(&wl->lock, irqflag);
921 switch (param->flags & IW_AUTH_INDEX) {
922 case IW_AUTH_WPA_VERSION:
923 switch (wl->wpa_level) {
924 case GELIC_WL_WPA_LEVEL_WPA:
925 param->value |= IW_AUTH_WPA_VERSION_WPA;
926 break;
927 case GELIC_WL_WPA_LEVEL_WPA2:
928 param->value |= IW_AUTH_WPA_VERSION_WPA2;
929 break;
930 default:
931 param->value |= IW_AUTH_WPA_VERSION_DISABLED;
932 }
933 break;
934
935 case IW_AUTH_80211_AUTH_ALG:
936 if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
937 param->value = IW_AUTH_ALG_SHARED_KEY;
938 else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
939 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
940 break;
941
942 case IW_AUTH_WPA_ENABLED:
943 switch (wl->wpa_level) {
944 case GELIC_WL_WPA_LEVEL_WPA:
945 case GELIC_WL_WPA_LEVEL_WPA2:
946 param->value = 1;
947 break;
948 default:
949 param->value = 0;
950 break;
951 }
952 break;
953 default:
954 ret = -EOPNOTSUPP;
955 }
956
957 spin_unlock_irqrestore(&wl->lock, irqflag);
958 pr_debug("%s: -> %d\n", __func__, ret);
959 return ret;
960 }
961
962 /* SIOC{S,G}IWESSID */
963 static int gelic_wl_set_essid(struct net_device *netdev,
964 struct iw_request_info *info,
965 union iwreq_data *data, char *extra)
966 {
967 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
968 unsigned long irqflag;
969
970 pr_debug("%s: <- l=%d f=%d\n", __func__,
971 data->essid.length, data->essid.flags);
972 if (IW_ESSID_MAX_SIZE < data->essid.length)
973 return -EINVAL;
974
975 spin_lock_irqsave(&wl->lock, irqflag);
976 if (data->essid.flags) {
977 wl->essid_len = data->essid.length;
978 memcpy(wl->essid, extra, wl->essid_len);
979 pr_debug("%s: essid = '%s'\n", __func__, extra);
980 set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
981 } else {
982 pr_debug("%s: ESSID any \n", __func__);
983 clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
984 }
985 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
986 spin_unlock_irqrestore(&wl->lock, irqflag);
987
988
989 gelic_wl_try_associate(netdev); /* FIXME */
990 pr_debug("%s: -> \n", __func__);
991 return 0;
992 }
993
994 static int gelic_wl_get_essid(struct net_device *netdev,
995 struct iw_request_info *info,
996 union iwreq_data *data, char *extra)
997 {
998 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
999 unsigned long irqflag;
1000
1001 pr_debug("%s: <- \n", __func__);
1002 mutex_lock(&wl->assoc_stat_lock);
1003 spin_lock_irqsave(&wl->lock, irqflag);
1004 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
1005 wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1006 memcpy(extra, wl->essid, wl->essid_len);
1007 data->essid.length = wl->essid_len;
1008 data->essid.flags = 1;
1009 } else
1010 data->essid.flags = 0;
1011
1012 mutex_unlock(&wl->assoc_stat_lock);
1013 spin_unlock_irqrestore(&wl->lock, irqflag);
1014 pr_debug("%s: -> len=%d \n", __func__, data->essid.length);
1015
1016 return 0;
1017 }
1018
1019 /* SIO{S,G}IWENCODE */
1020 static int gelic_wl_set_encode(struct net_device *netdev,
1021 struct iw_request_info *info,
1022 union iwreq_data *data, char *extra)
1023 {
1024 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1025 struct iw_point *enc = &data->encoding;
1026 __u16 flags;
1027 unsigned int irqflag;
1028 int key_index, index_specified;
1029 int ret = 0;
1030
1031 pr_debug("%s: <- \n", __func__);
1032 flags = enc->flags & IW_ENCODE_FLAGS;
1033 key_index = enc->flags & IW_ENCODE_INDEX;
1034
1035 pr_debug("%s: key_index = %d\n", __func__, key_index);
1036 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1037 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1038
1039 if (GELIC_WEP_KEYS < key_index)
1040 return -EINVAL;
1041
1042 spin_lock_irqsave(&wl->lock, irqflag);
1043 if (key_index) {
1044 index_specified = 1;
1045 key_index--;
1046 } else {
1047 index_specified = 0;
1048 key_index = wl->current_key;
1049 }
1050
1051 if (flags & IW_ENCODE_NOKEY) {
1052 /* if just IW_ENCODE_NOKEY, change current key index */
1053 if (!flags && index_specified) {
1054 wl->current_key = key_index;
1055 goto done;
1056 }
1057
1058 if (flags & IW_ENCODE_DISABLED) {
1059 if (!index_specified) {
1060 /* disable encryption */
1061 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1062 wl->pairwise_cipher_method =
1063 GELIC_WL_CIPHER_NONE;
1064 /* invalidate all key */
1065 wl->key_enabled = 0;
1066 } else
1067 clear_bit(key_index, &wl->key_enabled);
1068 }
1069
1070 if (flags & IW_ENCODE_OPEN)
1071 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1072 if (flags & IW_ENCODE_RESTRICTED) {
1073 pr_info("%s: shared key mode enabled\n", __func__);
1074 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1075 }
1076 } else {
1077 if (IW_ENCODING_TOKEN_MAX < enc->length) {
1078 ret = -EINVAL;
1079 goto done;
1080 }
1081 wl->key_len[key_index] = enc->length;
1082 memcpy(wl->key[key_index], extra, enc->length);
1083 set_bit(key_index, &wl->key_enabled);
1084 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1085 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1086 }
1087 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1088 done:
1089 spin_unlock_irqrestore(&wl->lock, irqflag);
1090 pr_debug("%s: -> \n", __func__);
1091 return ret;
1092 }
1093
1094 static int gelic_wl_get_encode(struct net_device *netdev,
1095 struct iw_request_info *info,
1096 union iwreq_data *data, char *extra)
1097 {
1098 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1099 struct iw_point *enc = &data->encoding;
1100 unsigned int irqflag;
1101 unsigned int key_index, index_specified;
1102 int ret = 0;
1103
1104 pr_debug("%s: <- \n", __func__);
1105 key_index = enc->flags & IW_ENCODE_INDEX;
1106 pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1107 enc->flags, enc->pointer, enc->length, extra);
1108 if (GELIC_WEP_KEYS < key_index)
1109 return -EINVAL;
1110
1111 spin_lock_irqsave(&wl->lock, irqflag);
1112 if (key_index) {
1113 index_specified = 1;
1114 key_index--;
1115 } else {
1116 index_specified = 0;
1117 key_index = wl->current_key;
1118 }
1119
1120 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1121 switch (wl->auth_method) {
1122 case GELIC_EURUS_AUTH_OPEN:
1123 enc->flags = IW_ENCODE_OPEN;
1124 break;
1125 case GELIC_EURUS_AUTH_SHARED:
1126 enc->flags = IW_ENCODE_RESTRICTED;
1127 break;
1128 }
1129 } else
1130 enc->flags = IW_ENCODE_DISABLED;
1131
1132 if (test_bit(key_index, &wl->key_enabled)) {
1133 if (enc->length < wl->key_len[key_index]) {
1134 ret = -EINVAL;
1135 goto done;
1136 }
1137 enc->length = wl->key_len[key_index];
1138 memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1139 } else {
1140 enc->length = 0;
1141 enc->flags |= IW_ENCODE_NOKEY;
1142 }
1143 enc->flags |= key_index + 1;
1144 pr_debug("%s: -> flag=%x len=%d\n", __func__,
1145 enc->flags, enc->length);
1146
1147 done:
1148 spin_unlock_irqrestore(&wl->lock, irqflag);
1149 return ret;
1150 }
1151
1152 /* SIOC{S,G}IWAP */
1153 static int gelic_wl_set_ap(struct net_device *netdev,
1154 struct iw_request_info *info,
1155 union iwreq_data *data, char *extra)
1156 {
1157 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1158 unsigned long irqflag;
1159
1160 pr_debug("%s: <-\n", __func__);
1161 if (data->ap_addr.sa_family != ARPHRD_ETHER)
1162 return -EINVAL;
1163
1164 spin_lock_irqsave(&wl->lock, irqflag);
1165 if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1166 memcpy(wl->bssid, data->ap_addr.sa_data,
1167 ETH_ALEN);
1168 set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1169 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1170 pr_debug("%s: bss=%02x:%02x:%02x:%02x:%02x:%02x\n",
1171 __func__,
1172 wl->bssid[0], wl->bssid[1],
1173 wl->bssid[2], wl->bssid[3],
1174 wl->bssid[4], wl->bssid[5]);
1175 } else {
1176 pr_debug("%s: clear bssid\n", __func__);
1177 clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1178 memset(wl->bssid, 0, ETH_ALEN);
1179 }
1180 spin_unlock_irqrestore(&wl->lock, irqflag);
1181 pr_debug("%s: ->\n", __func__);
1182 return 0;
1183 }
1184
1185 static int gelic_wl_get_ap(struct net_device *netdev,
1186 struct iw_request_info *info,
1187 union iwreq_data *data, char *extra)
1188 {
1189 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1190 unsigned long irqflag;
1191
1192 pr_debug("%s: <-\n", __func__);
1193 mutex_lock(&wl->assoc_stat_lock);
1194 spin_lock_irqsave(&wl->lock, irqflag);
1195 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1196 data->ap_addr.sa_family = ARPHRD_ETHER;
1197 memcpy(data->ap_addr.sa_data, wl->active_bssid,
1198 ETH_ALEN);
1199 } else
1200 memset(data->ap_addr.sa_data, 0, ETH_ALEN);
1201
1202 spin_unlock_irqrestore(&wl->lock, irqflag);
1203 mutex_unlock(&wl->assoc_stat_lock);
1204 pr_debug("%s: ->\n", __func__);
1205 return 0;
1206 }
1207
1208 /* SIOC{S,G}IWENCODEEXT */
1209 static int gelic_wl_set_encodeext(struct net_device *netdev,
1210 struct iw_request_info *info,
1211 union iwreq_data *data, char *extra)
1212 {
1213 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1214 struct iw_point *enc = &data->encoding;
1215 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1216 __u16 alg;
1217 __u16 flags;
1218 unsigned int irqflag;
1219 int key_index;
1220 int ret = 0;
1221
1222 pr_debug("%s: <- \n", __func__);
1223 flags = enc->flags & IW_ENCODE_FLAGS;
1224 alg = ext->alg;
1225 key_index = enc->flags & IW_ENCODE_INDEX;
1226
1227 pr_debug("%s: key_index = %d\n", __func__, key_index);
1228 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1229 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1230 pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1231 pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1232
1233 if (GELIC_WEP_KEYS < key_index)
1234 return -EINVAL;
1235
1236 spin_lock_irqsave(&wl->lock, irqflag);
1237 if (key_index)
1238 key_index--;
1239 else
1240 key_index = wl->current_key;
1241
1242 if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1243 /* reques to change default key index */
1244 pr_debug("%s: request to change default key to %d\n",
1245 __func__, key_index);
1246 wl->current_key = key_index;
1247 goto done;
1248 }
1249
1250 if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1251 pr_debug("%s: alg disabled\n", __func__);
1252 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1253 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1254 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1255 wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1256 } else if (alg == IW_ENCODE_ALG_WEP) {
1257 pr_debug("%s: WEP requested\n", __func__);
1258 if (flags & IW_ENCODE_OPEN) {
1259 pr_debug("%s: open key mode\n", __func__);
1260 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1261 }
1262 if (flags & IW_ENCODE_RESTRICTED) {
1263 pr_debug("%s: shared key mode\n", __func__);
1264 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1265 }
1266 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1267 pr_info("%s: key is too long %d\n", __func__,
1268 ext->key_len);
1269 ret = -EINVAL;
1270 goto done;
1271 }
1272 /* OK, update the key */
1273 wl->key_len[key_index] = ext->key_len;
1274 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1275 memcpy(wl->key[key_index], ext->key, ext->key_len);
1276 set_bit(key_index, &wl->key_enabled);
1277 /* remember wep info changed */
1278 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1279 } else if (alg == IW_ENCODE_ALG_PMK) {
1280 if (ext->key_len != WPA_PSK_LEN) {
1281 pr_err("%s: PSK length wrong %d\n", __func__,
1282 ext->key_len);
1283 ret = -EINVAL;
1284 goto done;
1285 }
1286 memset(wl->psk, 0, sizeof(wl->psk));
1287 memcpy(wl->psk, ext->key, ext->key_len);
1288 wl->psk_len = ext->key_len;
1289 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1290 /* remember PSK configured */
1291 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1292 }
1293 done:
1294 spin_unlock_irqrestore(&wl->lock, irqflag);
1295 pr_debug("%s: -> \n", __func__);
1296 return ret;
1297 }
1298
1299 static int gelic_wl_get_encodeext(struct net_device *netdev,
1300 struct iw_request_info *info,
1301 union iwreq_data *data, char *extra)
1302 {
1303 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1304 struct iw_point *enc = &data->encoding;
1305 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1306 unsigned int irqflag;
1307 int key_index;
1308 int ret = 0;
1309 int max_key_len;
1310
1311 pr_debug("%s: <- \n", __func__);
1312
1313 max_key_len = enc->length - sizeof(struct iw_encode_ext);
1314 if (max_key_len < 0)
1315 return -EINVAL;
1316 key_index = enc->flags & IW_ENCODE_INDEX;
1317
1318 pr_debug("%s: key_index = %d\n", __func__, key_index);
1319 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1320 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1321
1322 if (GELIC_WEP_KEYS < key_index)
1323 return -EINVAL;
1324
1325 spin_lock_irqsave(&wl->lock, irqflag);
1326 if (key_index)
1327 key_index--;
1328 else
1329 key_index = wl->current_key;
1330
1331 memset(ext, 0, sizeof(struct iw_encode_ext));
1332 switch (wl->group_cipher_method) {
1333 case GELIC_WL_CIPHER_WEP:
1334 ext->alg = IW_ENCODE_ALG_WEP;
1335 enc->flags |= IW_ENCODE_ENABLED;
1336 break;
1337 case GELIC_WL_CIPHER_TKIP:
1338 ext->alg = IW_ENCODE_ALG_TKIP;
1339 enc->flags |= IW_ENCODE_ENABLED;
1340 break;
1341 case GELIC_WL_CIPHER_AES:
1342 ext->alg = IW_ENCODE_ALG_CCMP;
1343 enc->flags |= IW_ENCODE_ENABLED;
1344 break;
1345 case GELIC_WL_CIPHER_NONE:
1346 default:
1347 ext->alg = IW_ENCODE_ALG_NONE;
1348 enc->flags |= IW_ENCODE_NOKEY;
1349 break;
1350 }
1351
1352 if (!(enc->flags & IW_ENCODE_NOKEY)) {
1353 if (max_key_len < wl->key_len[key_index]) {
1354 ret = -E2BIG;
1355 goto out;
1356 }
1357 if (test_bit(key_index, &wl->key_enabled))
1358 memcpy(ext->key, wl->key[key_index],
1359 wl->key_len[key_index]);
1360 else
1361 pr_debug("%s: disabled key requested ix=%d\n",
1362 __func__, key_index);
1363 }
1364 out:
1365 spin_unlock_irqrestore(&wl->lock, irqflag);
1366 pr_debug("%s: -> \n", __func__);
1367 return ret;
1368 }
1369 /* SIOC{S,G}IWMODE */
1370 static int gelic_wl_set_mode(struct net_device *netdev,
1371 struct iw_request_info *info,
1372 union iwreq_data *data, char *extra)
1373 {
1374 __u32 mode = data->mode;
1375 int ret;
1376
1377 pr_debug("%s: <- \n", __func__);
1378 if (mode == IW_MODE_INFRA)
1379 ret = 0;
1380 else
1381 ret = -EOPNOTSUPP;
1382 pr_debug("%s: -> %d\n", __func__, ret);
1383 return ret;
1384 }
1385
1386 static int gelic_wl_get_mode(struct net_device *netdev,
1387 struct iw_request_info *info,
1388 union iwreq_data *data, char *extra)
1389 {
1390 __u32 *mode = &data->mode;
1391 pr_debug("%s: <- \n", __func__);
1392 *mode = IW_MODE_INFRA;
1393 pr_debug("%s: ->\n", __func__);
1394 return 0;
1395 }
1396
1397 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
1398 /* SIOCIWFIRSTPRIV */
1399 static int hex2bin(u8 *str, u8 *bin, unsigned int len)
1400 {
1401 unsigned int i;
1402 static unsigned char *hex = "0123456789ABCDEF";
1403 unsigned char *p, *q;
1404 u8 tmp;
1405
1406 if (len != WPA_PSK_LEN * 2)
1407 return -EINVAL;
1408
1409 for (i = 0; i < WPA_PSK_LEN * 2; i += 2) {
1410 p = strchr(hex, toupper(str[i]));
1411 q = strchr(hex, toupper(str[i + 1]));
1412 if (!p || !q) {
1413 pr_info("%s: unconvertible PSK digit=%d\n",
1414 __func__, i);
1415 return -EINVAL;
1416 }
1417 tmp = ((p - hex) << 4) + (q - hex);
1418 *bin++ = tmp;
1419 }
1420 return 0;
1421 };
1422
1423 static int gelic_wl_priv_set_psk(struct net_device *net_dev,
1424 struct iw_request_info *info,
1425 union iwreq_data *data, char *extra)
1426 {
1427 struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1428 unsigned int len;
1429 unsigned int irqflag;
1430 int ret = 0;
1431
1432 pr_debug("%s:<- len=%d\n", __func__, data->data.length);
1433 len = data->data.length - 1;
1434 if (len <= 2)
1435 return -EINVAL;
1436
1437 spin_lock_irqsave(&wl->lock, irqflag);
1438 if (extra[0] == '"' && extra[len - 1] == '"') {
1439 pr_debug("%s: passphrase mode\n", __func__);
1440 /* pass phrase */
1441 if (GELIC_WL_EURUS_PSK_MAX_LEN < (len - 2)) {
1442 pr_info("%s: passphrase too long\n", __func__);
1443 ret = -E2BIG;
1444 goto out;
1445 }
1446 memset(wl->psk, 0, sizeof(wl->psk));
1447 wl->psk_len = len - 2;
1448 memcpy(wl->psk, &(extra[1]), wl->psk_len);
1449 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
1450 } else {
1451 ret = hex2bin(extra, wl->psk, len);
1452 if (ret)
1453 goto out;
1454 wl->psk_len = WPA_PSK_LEN;
1455 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1456 }
1457 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1458 out:
1459 spin_unlock_irqrestore(&wl->lock, irqflag);
1460 pr_debug("%s:->\n", __func__);
1461 return ret;
1462 }
1463
1464 static int gelic_wl_priv_get_psk(struct net_device *net_dev,
1465 struct iw_request_info *info,
1466 union iwreq_data *data, char *extra)
1467 {
1468 struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1469 char *p;
1470 unsigned int irqflag;
1471 unsigned int i;
1472
1473 pr_debug("%s:<-\n", __func__);
1474 if (!capable(CAP_NET_ADMIN))
1475 return -EPERM;
1476
1477 spin_lock_irqsave(&wl->lock, irqflag);
1478 p = extra;
1479 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat)) {
1480 if (wl->psk_type == GELIC_EURUS_WPA_PSK_BIN) {
1481 for (i = 0; i < wl->psk_len; i++) {
1482 sprintf(p, "%02xu", wl->psk[i]);
1483 p += 2;
1484 }
1485 *p = '\0';
1486 data->data.length = wl->psk_len * 2;
1487 } else {
1488 *p++ = '"';
1489 memcpy(p, wl->psk, wl->psk_len);
1490 p += wl->psk_len;
1491 *p++ = '"';
1492 *p = '\0';
1493 data->data.length = wl->psk_len + 2;
1494 }
1495 } else
1496 /* no psk set */
1497 data->data.length = 0;
1498 spin_unlock_irqrestore(&wl->lock, irqflag);
1499 pr_debug("%s:-> %d\n", __func__, data->data.length);
1500 return 0;
1501 }
1502 #endif
1503
1504 /* SIOCGIWNICKN */
1505 static int gelic_wl_get_nick(struct net_device *net_dev,
1506 struct iw_request_info *info,
1507 union iwreq_data *data, char *extra)
1508 {
1509 strcpy(extra, "gelic_wl");
1510 data->data.length = strlen(extra);
1511 data->data.flags = 1;
1512 return 0;
1513 }
1514
1515
1516 /* --- */
1517
1518 static struct iw_statistics *gelic_wl_get_wireless_stats(
1519 struct net_device *netdev)
1520 {
1521
1522 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1523 struct gelic_eurus_cmd *cmd;
1524 struct iw_statistics *is;
1525 struct gelic_eurus_rssi_info *rssi;
1526 void *buf;
1527
1528 pr_debug("%s: <-\n", __func__);
1529
1530 buf = (void *)__get_free_page(GFP_KERNEL);
1531 if (!buf)
1532 return NULL;
1533
1534 is = &wl->iwstat;
1535 memset(is, 0, sizeof(*is));
1536 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1537 buf, sizeof(*rssi));
1538 if (cmd && !cmd->status && !cmd->cmd_status) {
1539 rssi = buf;
1540 is->qual.level = be16_to_cpu(rssi->rssi);
1541 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1542 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1543 } else
1544 /* not associated */
1545 is->qual.updated = IW_QUAL_ALL_INVALID;
1546
1547 kfree(cmd);
1548 free_page((unsigned long)buf);
1549 pr_debug("%s: ->\n", __func__);
1550 return is;
1551 }
1552
1553 /*
1554 * scanning helpers
1555 */
1556 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1557 u8 *essid, size_t essid_len)
1558 {
1559 struct gelic_eurus_cmd *cmd;
1560 int ret = 0;
1561 void *buf = NULL;
1562 size_t len;
1563
1564 pr_debug("%s: <- always=%d\n", __func__, always_scan);
1565 if (mutex_lock_interruptible(&wl->scan_lock))
1566 return -ERESTARTSYS;
1567
1568 /*
1569 * If already a scan in progress, do not trigger more
1570 */
1571 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1572 pr_debug("%s: scanning now\n", __func__);
1573 goto out;
1574 }
1575
1576 init_completion(&wl->scan_done);
1577 /*
1578 * If we have already a bss list, don't try to get new
1579 */
1580 if (!always_scan && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1581 pr_debug("%s: already has the list\n", __func__);
1582 complete(&wl->scan_done);
1583 goto out;
1584 }
1585
1586 /* ESSID scan ? */
1587 if (essid_len && essid) {
1588 buf = (void *)__get_free_page(GFP_KERNEL);
1589 if (!buf) {
1590 ret = -ENOMEM;
1591 goto out;
1592 }
1593 len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1594 memset(buf, 0, len);
1595 memcpy(buf, essid, essid_len);
1596 pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1597 } else
1598 len = 0;
1599
1600 /*
1601 * issue start scan request
1602 */
1603 wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1604 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1605 buf, len);
1606 if (!cmd || cmd->status || cmd->cmd_status) {
1607 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1608 complete(&wl->scan_done);
1609 ret = -ENOMEM;
1610 goto out;
1611 }
1612 kfree(cmd);
1613 out:
1614 free_page((unsigned long)buf);
1615 mutex_unlock(&wl->scan_lock);
1616 pr_debug("%s: ->\n", __func__);
1617 return ret;
1618 }
1619
1620 /*
1621 * retrieve scan result from the chip (hypervisor)
1622 * this function is invoked by schedule work.
1623 */
1624 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1625 {
1626 struct gelic_eurus_cmd *cmd = NULL;
1627 struct gelic_wl_scan_info *target, *tmp;
1628 struct gelic_wl_scan_info *oldest = NULL;
1629 struct gelic_eurus_scan_info *scan_info;
1630 unsigned int scan_info_size;
1631 union iwreq_data data;
1632 unsigned long this_time = jiffies;
1633 unsigned int data_len, i, found, r;
1634 void *buf;
1635 DECLARE_MAC_BUF(mac);
1636
1637 pr_debug("%s:start\n", __func__);
1638 mutex_lock(&wl->scan_lock);
1639
1640 buf = (void *)__get_free_page(GFP_KERNEL);
1641 if (!buf) {
1642 pr_info("%s: scan buffer alloc failed\n", __func__);
1643 goto out;
1644 }
1645
1646 if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1647 /*
1648 * stop() may be called while scanning, ignore result
1649 */
1650 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1651 __func__, wl->scan_stat);
1652 goto out;
1653 }
1654
1655 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1656 buf, PAGE_SIZE);
1657 if (!cmd || cmd->status || cmd->cmd_status) {
1658 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1659 pr_info("%s:cmd failed\n", __func__);
1660 kfree(cmd);
1661 goto out;
1662 }
1663 data_len = cmd->size;
1664 pr_debug("%s: data_len = %d\n", __func__, data_len);
1665 kfree(cmd);
1666
1667 /* OK, bss list retrieved */
1668 wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1669
1670 /* mark all entries are old */
1671 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1672 target->valid = 0;
1673 /* expire too old entries */
1674 if (time_before(target->last_scanned + wl->scan_age,
1675 this_time)) {
1676 kfree(target->hwinfo);
1677 target->hwinfo = NULL;
1678 list_move_tail(&target->list, &wl->network_free_list);
1679 }
1680 }
1681
1682 /* put them in the newtork_list */
1683 for (i = 0, scan_info_size = 0, scan_info = buf;
1684 scan_info_size < data_len;
1685 i++, scan_info_size += be16_to_cpu(scan_info->size),
1686 scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1687 pr_debug("%s:size=%d bssid=%s scan_info=%p\n", __func__,
1688 be16_to_cpu(scan_info->size),
1689 print_mac(mac, &scan_info->bssid[2]), scan_info);
1690
1691 /*
1692 * The wireless firmware may return invalid channel 0 and/or
1693 * invalid rate if the AP emits zero length SSID ie. As this
1694 * scan information is useless, ignore it
1695 */
1696 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1697 pr_debug("%s: invalid scan info\n", __func__);
1698 continue;
1699 }
1700
1701 found = 0;
1702 oldest = NULL;
1703 list_for_each_entry(target, &wl->network_list, list) {
1704 if (!compare_ether_addr(&target->hwinfo->bssid[2],
1705 &scan_info->bssid[2])) {
1706 found = 1;
1707 pr_debug("%s: same BBS found scanned list\n",
1708 __func__);
1709 break;
1710 }
1711 if (!oldest ||
1712 (target->last_scanned < oldest->last_scanned))
1713 oldest = target;
1714 }
1715
1716 if (!found) {
1717 /* not found in the list */
1718 if (list_empty(&wl->network_free_list)) {
1719 /* expire oldest */
1720 target = oldest;
1721 } else {
1722 target = list_entry(wl->network_free_list.next,
1723 struct gelic_wl_scan_info,
1724 list);
1725 }
1726 }
1727
1728 /* update the item */
1729 target->last_scanned = this_time;
1730 target->valid = 1;
1731 target->eurus_index = i;
1732 kfree(target->hwinfo);
1733 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1734 GFP_KERNEL);
1735 if (!target->hwinfo) {
1736 pr_info("%s: kzalloc failed\n", __func__);
1737 continue;
1738 }
1739 /* copy hw scan info */
1740 memcpy(target->hwinfo, scan_info, scan_info->size);
1741 target->essid_len = strnlen(scan_info->essid,
1742 sizeof(scan_info->essid));
1743 target->rate_len = 0;
1744 for (r = 0; r < MAX_RATES_LENGTH; r++)
1745 if (scan_info->rate[r])
1746 target->rate_len++;
1747 if (8 < target->rate_len)
1748 pr_info("%s: AP returns %d rates\n", __func__,
1749 target->rate_len);
1750 target->rate_ext_len = 0;
1751 for (r = 0; r < MAX_RATES_EX_LENGTH; r++)
1752 if (scan_info->ext_rate[r])
1753 target->rate_ext_len++;
1754 list_move_tail(&target->list, &wl->network_list);
1755 }
1756 memset(&data, 0, sizeof(data));
1757 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1758 NULL);
1759 out:
1760 free_page((unsigned long)buf);
1761 complete(&wl->scan_done);
1762 mutex_unlock(&wl->scan_lock);
1763 pr_debug("%s:end\n", __func__);
1764 }
1765
1766 /*
1767 * Select an appropriate bss from current scan list regarding
1768 * current settings from userspace.
1769 * The caller must hold wl->scan_lock,
1770 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1771 */
1772 static void update_best(struct gelic_wl_scan_info **best,
1773 struct gelic_wl_scan_info *candid,
1774 int *best_weight,
1775 int *weight)
1776 {
1777 if (*best_weight < ++(*weight)) {
1778 *best_weight = *weight;
1779 *best = candid;
1780 }
1781 }
1782
1783 static
1784 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1785 {
1786 struct gelic_wl_scan_info *scan_info;
1787 struct gelic_wl_scan_info *best_bss;
1788 int weight, best_weight;
1789 u16 security;
1790 DECLARE_MAC_BUF(mac);
1791
1792 pr_debug("%s: <-\n", __func__);
1793
1794 best_bss = NULL;
1795 best_weight = 0;
1796
1797 list_for_each_entry(scan_info, &wl->network_list, list) {
1798 pr_debug("%s: station %p\n", __func__, scan_info);
1799
1800 if (!scan_info->valid) {
1801 pr_debug("%s: station invalid\n", __func__);
1802 continue;
1803 }
1804
1805 /* If bss specified, check it only */
1806 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1807 if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1808 wl->bssid)) {
1809 best_bss = scan_info;
1810 pr_debug("%s: bssid matched\n", __func__);
1811 break;
1812 } else {
1813 pr_debug("%s: bssid unmached\n", __func__);
1814 continue;
1815 }
1816 }
1817
1818 weight = 0;
1819
1820 /* security */
1821 security = be16_to_cpu(scan_info->hwinfo->security) &
1822 GELIC_EURUS_SCAN_SEC_MASK;
1823 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1824 if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1825 update_best(&best_bss, scan_info,
1826 &best_weight, &weight);
1827 else
1828 continue;
1829 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1830 if (security == GELIC_EURUS_SCAN_SEC_WPA)
1831 update_best(&best_bss, scan_info,
1832 &best_weight, &weight);
1833 else
1834 continue;
1835 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1836 wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1837 if (security == GELIC_EURUS_SCAN_SEC_WEP)
1838 update_best(&best_bss, scan_info,
1839 &best_weight, &weight);
1840 else
1841 continue;
1842 }
1843
1844 /* If ESSID is set, check it */
1845 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1846 if ((scan_info->essid_len == wl->essid_len) &&
1847 !strncmp(wl->essid,
1848 scan_info->hwinfo->essid,
1849 scan_info->essid_len))
1850 update_best(&best_bss, scan_info,
1851 &best_weight, &weight);
1852 else
1853 continue;
1854 }
1855 }
1856
1857 #ifdef DEBUG
1858 pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1859 if (best_bss) {
1860 pr_debug("%s:addr=%s\n", __func__,
1861 print_mac(mac, &best_bss->hwinfo->bssid[2]));
1862 }
1863 #endif
1864 return best_bss;
1865 }
1866
1867 /*
1868 * Setup WEP configuration to the chip
1869 * The caller must hold wl->scan_lock,
1870 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1871 */
1872 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1873 {
1874 unsigned int i;
1875 struct gelic_eurus_wep_cfg *wep;
1876 struct gelic_eurus_cmd *cmd;
1877 int wep104 = 0;
1878 int have_key = 0;
1879 int ret = 0;
1880
1881 pr_debug("%s: <-\n", __func__);
1882 /* we can assume no one should uses the buffer */
1883 wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1884 if (!wep)
1885 return -ENOMEM;
1886
1887 memset(wep, 0, sizeof(*wep));
1888
1889 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1890 pr_debug("%s: WEP mode\n", __func__);
1891 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1892 if (!test_bit(i, &wl->key_enabled))
1893 continue;
1894
1895 pr_debug("%s: key#%d enabled\n", __func__, i);
1896 have_key = 1;
1897 if (wl->key_len[i] == 13)
1898 wep104 = 1;
1899 else if (wl->key_len[i] != 5) {
1900 pr_info("%s: wrong wep key[%d]=%d\n",
1901 __func__, i, wl->key_len[i]);
1902 ret = -EINVAL;
1903 goto out;
1904 }
1905 memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1906 }
1907
1908 if (!have_key) {
1909 pr_info("%s: all wep key disabled\n", __func__);
1910 ret = -EINVAL;
1911 goto out;
1912 }
1913
1914 if (wep104) {
1915 pr_debug("%s: 104bit key\n", __func__);
1916 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1917 } else {
1918 pr_debug("%s: 40bit key\n", __func__);
1919 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1920 }
1921 } else {
1922 pr_debug("%s: NO encryption\n", __func__);
1923 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1924 }
1925
1926 /* issue wep setup */
1927 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1928 wep, sizeof(*wep));
1929 if (!cmd)
1930 ret = -ENOMEM;
1931 else if (cmd->status || cmd->cmd_status)
1932 ret = -ENXIO;
1933
1934 kfree(cmd);
1935 out:
1936 free_page((unsigned long)wep);
1937 pr_debug("%s: ->\n", __func__);
1938 return ret;
1939 }
1940
1941 #ifdef DEBUG
1942 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1943 {
1944 switch (sec) {
1945 case GELIC_EURUS_WPA_SEC_NONE:
1946 return "NONE";
1947 break;
1948 case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1949 return "WPA_TKIP_TKIP";
1950 break;
1951 case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1952 return "WPA_TKIP_AES";
1953 break;
1954 case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1955 return "WPA_AES_AES";
1956 break;
1957 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1958 return "WPA2_TKIP_TKIP";
1959 break;
1960 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1961 return "WPA2_TKIP_AES";
1962 break;
1963 case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1964 return "WPA2_AES_AES";
1965 break;
1966 }
1967 return "";
1968 };
1969 #endif
1970
1971 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1972 {
1973 struct gelic_eurus_wpa_cfg *wpa;
1974 struct gelic_eurus_cmd *cmd;
1975 u16 security;
1976 int ret = 0;
1977
1978 pr_debug("%s: <-\n", __func__);
1979 /* we can assume no one should uses the buffer */
1980 wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1981 if (!wpa)
1982 return -ENOMEM;
1983
1984 memset(wpa, 0, sizeof(*wpa));
1985
1986 if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1987 pr_info("%s: PSK not configured yet\n", __func__);
1988
1989 /* copy key */
1990 memcpy(wpa->psk, wl->psk, wl->psk_len);
1991
1992 /* set security level */
1993 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1994 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1995 security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1996 } else {
1997 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1998 precise_ie())
1999 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
2000 else
2001 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
2002 }
2003 } else {
2004 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
2005 security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
2006 } else {
2007 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
2008 precise_ie())
2009 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
2010 else
2011 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
2012 }
2013 }
2014 wpa->security = cpu_to_be16(security);
2015
2016 /* PSK type */
2017 wpa->psk_type = cpu_to_be16(wl->psk_type);
2018 #ifdef DEBUG
2019 pr_debug("%s: sec=%s psktype=%s\nn", __func__,
2020 wpasecstr(wpa->security),
2021 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
2022 "BIN" : "passphrase");
2023 #if 0
2024 /*
2025 * don't enable here if you plan to submit
2026 * the debug log because this dumps your precious
2027 * passphrase/key.
2028 */
2029 pr_debug("%s: psk=%s\n",
2030 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
2031 (char *)"N/A" : (char *)wpa->psk);
2032 #endif
2033 #endif
2034 /* issue wpa setup */
2035 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
2036 wpa, sizeof(*wpa));
2037 if (!cmd)
2038 ret = -ENOMEM;
2039 else if (cmd->status || cmd->cmd_status)
2040 ret = -ENXIO;
2041 kfree(cmd);
2042 free_page((unsigned long)wpa);
2043 pr_debug("%s: --> %d\n", __func__, ret);
2044 return ret;
2045 }
2046
2047 /*
2048 * Start association. caller must hold assoc_stat_lock
2049 */
2050 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
2051 struct gelic_wl_scan_info *bss)
2052 {
2053 struct gelic_eurus_cmd *cmd;
2054 struct gelic_eurus_common_cfg *common;
2055 int ret = 0;
2056 unsigned long rc;
2057
2058 pr_debug("%s: <-\n", __func__);
2059
2060 /* do common config */
2061 common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
2062 if (!common)
2063 return -ENOMEM;
2064
2065 memset(common, 0, sizeof(*common));
2066 common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
2067 common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
2068
2069 common->scan_index = cpu_to_be16(bss->eurus_index);
2070 switch (wl->auth_method) {
2071 case GELIC_EURUS_AUTH_OPEN:
2072 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
2073 break;
2074 case GELIC_EURUS_AUTH_SHARED:
2075 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
2076 break;
2077 }
2078
2079 #ifdef DEBUG
2080 scan_list_dump(wl);
2081 #endif
2082 pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
2083 be16_to_cpu(common->scan_index),
2084 be16_to_cpu(common->bss_type),
2085 be16_to_cpu(common->auth_method));
2086
2087 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
2088 common, sizeof(*common));
2089 if (!cmd || cmd->status || cmd->cmd_status) {
2090 ret = -ENOMEM;
2091 kfree(cmd);
2092 goto out;
2093 }
2094 kfree(cmd);
2095
2096 /* WEP/WPA */
2097 switch (wl->wpa_level) {
2098 case GELIC_WL_WPA_LEVEL_NONE:
2099 /* If WEP or no security, setup WEP config */
2100 ret = gelic_wl_do_wep_setup(wl);
2101 break;
2102 case GELIC_WL_WPA_LEVEL_WPA:
2103 case GELIC_WL_WPA_LEVEL_WPA2:
2104 ret = gelic_wl_do_wpa_setup(wl);
2105 break;
2106 };
2107
2108 if (ret) {
2109 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
2110 ret);
2111 }
2112
2113 /* start association */
2114 init_completion(&wl->assoc_done);
2115 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2116 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2117 NULL, 0);
2118 if (!cmd || cmd->status || cmd->cmd_status) {
2119 pr_debug("%s: assoc request failed\n", __func__);
2120 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2121 kfree(cmd);
2122 ret = -ENOMEM;
2123 gelic_wl_send_iwap_event(wl, NULL);
2124 goto out;
2125 }
2126 kfree(cmd);
2127
2128 /* wait for connected event */
2129 rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2130
2131 if (!rc) {
2132 /* timeouted. Maybe key or cyrpt mode is wrong */
2133 pr_info("%s: connect timeout \n", __func__);
2134 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2135 NULL, 0);
2136 kfree(cmd);
2137 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2138 gelic_wl_send_iwap_event(wl, NULL);
2139 ret = -ENXIO;
2140 } else {
2141 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2142 /* copy bssid */
2143 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2144
2145 /* send connect event */
2146 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2147 pr_info("%s: connected\n", __func__);
2148 }
2149 out:
2150 free_page((unsigned long)common);
2151 pr_debug("%s: ->\n", __func__);
2152 return ret;
2153 }
2154
2155 /*
2156 * connected event
2157 */
2158 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2159 u64 event)
2160 {
2161 u64 desired_event = 0;
2162
2163 switch (wl->wpa_level) {
2164 case GELIC_WL_WPA_LEVEL_NONE:
2165 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2166 break;
2167 case GELIC_WL_WPA_LEVEL_WPA:
2168 case GELIC_WL_WPA_LEVEL_WPA2:
2169 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2170 break;
2171 }
2172
2173 if (desired_event == event) {
2174 pr_debug("%s: completed \n", __func__);
2175 complete(&wl->assoc_done);
2176 netif_carrier_on(port_to_netdev(wl_port(wl)));
2177 } else
2178 pr_debug("%s: event %#lx under wpa\n",
2179 __func__, event);
2180 }
2181
2182 /*
2183 * disconnect event
2184 */
2185 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2186 u64 event)
2187 {
2188 struct gelic_eurus_cmd *cmd;
2189 int lock;
2190
2191 /*
2192 * If we fall here in the middle of association,
2193 * associate_bss() should be waiting for complation of
2194 * wl->assoc_done.
2195 * As it waits with timeout, just leave assoc_done
2196 * uncompleted, then it terminates with timeout
2197 */
2198 if (!mutex_trylock(&wl->assoc_stat_lock)) {
2199 pr_debug("%s: already locked\n", __func__);
2200 lock = 0;
2201 } else {
2202 pr_debug("%s: obtain lock\n", __func__);
2203 lock = 1;
2204 }
2205
2206 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2207 kfree(cmd);
2208
2209 /* send disconnected event to the supplicant */
2210 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2211 gelic_wl_send_iwap_event(wl, NULL);
2212
2213 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2214 netif_carrier_off(port_to_netdev(wl_port(wl)));
2215
2216 if (lock)
2217 mutex_unlock(&wl->assoc_stat_lock);
2218 }
2219 /*
2220 * event worker
2221 */
2222 #ifdef DEBUG
2223 static const char *eventstr(enum gelic_lv1_wl_event event)
2224 {
2225 static char buf[32];
2226 char *ret;
2227 if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2228 ret = "EURUS_READY";
2229 else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2230 ret = "SCAN_COMPLETED";
2231 else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2232 ret = "DEAUTH";
2233 else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2234 ret = "BEACON_LOST";
2235 else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2236 ret = "CONNECTED";
2237 else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2238 ret = "WPA_CONNECTED";
2239 else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2240 ret = "WPA_ERROR";
2241 else {
2242 sprintf(buf, "Unknown(%#x)", event);
2243 ret = buf;
2244 }
2245 return ret;
2246 }
2247 #else
2248 static const char *eventstr(enum gelic_lv1_wl_event event)
2249 {
2250 return NULL;
2251 }
2252 #endif
2253 static void gelic_wl_event_worker(struct work_struct *work)
2254 {
2255 struct gelic_wl_info *wl;
2256 struct gelic_port *port;
2257 u64 event, tmp;
2258 int status;
2259
2260 pr_debug("%s:start\n", __func__);
2261 wl = container_of(work, struct gelic_wl_info, event_work.work);
2262 port = wl_port(wl);
2263 while (1) {
2264 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2265 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2266 &event, &tmp);
2267 if (status) {
2268 if (status != LV1_NO_ENTRY)
2269 pr_debug("%s:wlan event failed %d\n",
2270 __func__, status);
2271 /* got all events */
2272 pr_debug("%s:end\n", __func__);
2273 return;
2274 }
2275 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2276 switch (event) {
2277 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2278 gelic_wl_scan_complete_event(wl);
2279 break;
2280 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2281 case GELIC_LV1_WL_EVENT_DEAUTH:
2282 gelic_wl_disconnect_event(wl, event);
2283 break;
2284 case GELIC_LV1_WL_EVENT_CONNECTED:
2285 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2286 gelic_wl_connected_event(wl, event);
2287 break;
2288 default:
2289 break;
2290 }
2291 } /* while */
2292 }
2293 /*
2294 * association worker
2295 */
2296 static void gelic_wl_assoc_worker(struct work_struct *work)
2297 {
2298 struct gelic_wl_info *wl;
2299
2300 struct gelic_wl_scan_info *best_bss;
2301 int ret;
2302 unsigned long irqflag;
2303 u8 *essid;
2304 size_t essid_len;
2305
2306 wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2307
2308 mutex_lock(&wl->assoc_stat_lock);
2309
2310 if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2311 goto out;
2312
2313 spin_lock_irqsave(&wl->lock, irqflag);
2314 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2315 pr_debug("%s: assoc ESSID configured %s\n", __func__,
2316 wl->essid);
2317 essid = wl->essid;
2318 essid_len = wl->essid_len;
2319 } else {
2320 essid = NULL;
2321 essid_len = 0;
2322 }
2323 spin_unlock_irqrestore(&wl->lock, irqflag);
2324
2325 ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2326 if (ret == -ERESTARTSYS) {
2327 pr_debug("%s: scan start failed association\n", __func__);
2328 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2329 goto out;
2330 } else if (ret) {
2331 pr_info("%s: scan prerequisite failed\n", __func__);
2332 goto out;
2333 }
2334
2335 /*
2336 * Wait for bss scan completion
2337 * If we have scan list already, gelic_wl_start_scan()
2338 * returns OK and raises the complete. Thus,
2339 * it's ok to wait unconditionally here
2340 */
2341 wait_for_completion(&wl->scan_done);
2342
2343 pr_debug("%s: scan done\n", __func__);
2344 mutex_lock(&wl->scan_lock);
2345 if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2346 gelic_wl_send_iwap_event(wl, NULL);
2347 pr_info("%s: no scan list. association failed\n", __func__);
2348 goto scan_lock_out;
2349 }
2350
2351 /* find best matching bss */
2352 best_bss = gelic_wl_find_best_bss(wl);
2353 if (!best_bss) {
2354 gelic_wl_send_iwap_event(wl, NULL);
2355 pr_info("%s: no bss matched. association failed\n", __func__);
2356 goto scan_lock_out;
2357 }
2358
2359 /* ok, do association */
2360 ret = gelic_wl_associate_bss(wl, best_bss);
2361 if (ret)
2362 pr_info("%s: association failed %d\n", __func__, ret);
2363 scan_lock_out:
2364 mutex_unlock(&wl->scan_lock);
2365 out:
2366 mutex_unlock(&wl->assoc_stat_lock);
2367 }
2368 /*
2369 * Interrupt handler
2370 * Called from the ethernet interrupt handler
2371 * Processes wireless specific virtual interrupts only
2372 */
2373 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2374 {
2375 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2376
2377 if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2378 pr_debug("%s:cmd complete\n", __func__);
2379 complete(&wl->cmd_done_intr);
2380 }
2381
2382 if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2383 pr_debug("%s:event received\n", __func__);
2384 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2385 }
2386 }
2387
2388 /*
2389 * driver helpers
2390 */
2391 #define IW_IOCTL(n) [(n) - SIOCSIWCOMMIT]
2392 static const iw_handler gelic_wl_wext_handler[] =
2393 {
2394 IW_IOCTL(SIOCGIWNAME) = gelic_wl_get_name,
2395 IW_IOCTL(SIOCGIWRANGE) = gelic_wl_get_range,
2396 IW_IOCTL(SIOCSIWSCAN) = gelic_wl_set_scan,
2397 IW_IOCTL(SIOCGIWSCAN) = gelic_wl_get_scan,
2398 IW_IOCTL(SIOCSIWAUTH) = gelic_wl_set_auth,
2399 IW_IOCTL(SIOCGIWAUTH) = gelic_wl_get_auth,
2400 IW_IOCTL(SIOCSIWESSID) = gelic_wl_set_essid,
2401 IW_IOCTL(SIOCGIWESSID) = gelic_wl_get_essid,
2402 IW_IOCTL(SIOCSIWENCODE) = gelic_wl_set_encode,
2403 IW_IOCTL(SIOCGIWENCODE) = gelic_wl_get_encode,
2404 IW_IOCTL(SIOCSIWAP) = gelic_wl_set_ap,
2405 IW_IOCTL(SIOCGIWAP) = gelic_wl_get_ap,
2406 IW_IOCTL(SIOCSIWENCODEEXT) = gelic_wl_set_encodeext,
2407 IW_IOCTL(SIOCGIWENCODEEXT) = gelic_wl_get_encodeext,
2408 IW_IOCTL(SIOCSIWMODE) = gelic_wl_set_mode,
2409 IW_IOCTL(SIOCGIWMODE) = gelic_wl_get_mode,
2410 IW_IOCTL(SIOCGIWNICKN) = gelic_wl_get_nick,
2411 };
2412
2413 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
2414 static struct iw_priv_args gelic_wl_private_args[] =
2415 {
2416 {
2417 .cmd = GELIC_WL_PRIV_SET_PSK,
2418 .set_args = IW_PRIV_TYPE_CHAR |
2419 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2420 .name = "set_psk"
2421 },
2422 {
2423 .cmd = GELIC_WL_PRIV_GET_PSK,
2424 .get_args = IW_PRIV_TYPE_CHAR |
2425 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2426 .name = "get_psk"
2427 }
2428 };
2429
2430 static const iw_handler gelic_wl_private_handler[] =
2431 {
2432 gelic_wl_priv_set_psk,
2433 gelic_wl_priv_get_psk,
2434 };
2435 #endif
2436
2437 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2438 .num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2439 .standard = gelic_wl_wext_handler,
2440 .get_wireless_stats = gelic_wl_get_wireless_stats,
2441 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
2442 .num_private = ARRAY_SIZE(gelic_wl_private_handler),
2443 .num_private_args = ARRAY_SIZE(gelic_wl_private_args),
2444 .private = gelic_wl_private_handler,
2445 .private_args = gelic_wl_private_args,
2446 #endif
2447 };
2448
2449 static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2450 {
2451 struct net_device *netdev;
2452 struct gelic_port *port;
2453 struct gelic_wl_info *wl;
2454 unsigned int i;
2455
2456 pr_debug("%s:start\n", __func__);
2457 netdev = alloc_etherdev(sizeof(struct gelic_port) +
2458 sizeof(struct gelic_wl_info));
2459 pr_debug("%s: netdev =%p card=%p \np", __func__, netdev, card);
2460 if (!netdev)
2461 return NULL;
2462
2463 strcpy(netdev->name, "wlan%d");
2464
2465 port = netdev_priv(netdev);
2466 port->netdev = netdev;
2467 port->card = card;
2468 port->type = GELIC_PORT_WIRELESS;
2469
2470 wl = port_wl(port);
2471 pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2472
2473 /* allocate scan list */
2474 wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2475 GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2476
2477 if (!wl->networks)
2478 goto fail_bss;
2479
2480 wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2481 if (!wl->eurus_cmd_queue)
2482 goto fail_cmd_workqueue;
2483
2484 wl->event_queue = create_singlethread_workqueue("gelic_event");
2485 if (!wl->event_queue)
2486 goto fail_event_workqueue;
2487
2488 INIT_LIST_HEAD(&wl->network_free_list);
2489 INIT_LIST_HEAD(&wl->network_list);
2490 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2491 list_add_tail(&wl->networks[i].list,
2492 &wl->network_free_list);
2493 init_completion(&wl->cmd_done_intr);
2494
2495 INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2496 INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2497 mutex_init(&wl->scan_lock);
2498 mutex_init(&wl->assoc_stat_lock);
2499
2500 init_completion(&wl->scan_done);
2501 /* for the case that no scan request is issued and stop() is called */
2502 complete(&wl->scan_done);
2503
2504 spin_lock_init(&wl->lock);
2505
2506 wl->scan_age = 5*HZ; /* FIXME */
2507
2508 /* buffer for receiving scanned list etc */
2509 BUILD_BUG_ON(PAGE_SIZE <
2510 sizeof(struct gelic_eurus_scan_info) *
2511 GELIC_EURUS_MAX_SCAN);
2512 pr_debug("%s:end\n", __func__);
2513 return netdev;
2514
2515 fail_event_workqueue:
2516 destroy_workqueue(wl->eurus_cmd_queue);
2517 fail_cmd_workqueue:
2518 kfree(wl->networks);
2519 fail_bss:
2520 free_netdev(netdev);
2521 pr_debug("%s:end error\n", __func__);
2522 return NULL;
2523
2524 }
2525
2526 static void gelic_wl_free(struct gelic_wl_info *wl)
2527 {
2528 struct gelic_wl_scan_info *scan_info;
2529 unsigned int i;
2530
2531 pr_debug("%s: <-\n", __func__);
2532
2533 pr_debug("%s: destroy queues\n", __func__);
2534 destroy_workqueue(wl->eurus_cmd_queue);
2535 destroy_workqueue(wl->event_queue);
2536
2537 scan_info = wl->networks;
2538 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2539 kfree(scan_info->hwinfo);
2540 kfree(wl->networks);
2541
2542 free_netdev(port_to_netdev(wl_port(wl)));
2543
2544 pr_debug("%s: ->\n", __func__);
2545 }
2546
2547 static int gelic_wl_try_associate(struct net_device *netdev)
2548 {
2549 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2550 int ret = -1;
2551 unsigned int i;
2552
2553 pr_debug("%s: <-\n", __func__);
2554
2555 /* check constraits for start association */
2556 /* for no access restriction AP */
2557 if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2558 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2559 &wl->stat))
2560 goto do_associate;
2561 else {
2562 pr_debug("%s: no wep, not configured\n", __func__);
2563 return ret;
2564 }
2565 }
2566
2567 /* for WEP, one of four keys should be set */
2568 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2569 /* one of keys set */
2570 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2571 if (test_bit(i, &wl->key_enabled))
2572 goto do_associate;
2573 }
2574 pr_debug("%s: WEP, but no key specified\n", __func__);
2575 return ret;
2576 }
2577
2578 /* for WPA[2], psk should be set */
2579 if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2580 (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2581 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2582 &wl->stat))
2583 goto do_associate;
2584 else {
2585 pr_debug("%s: AES/TKIP, but PSK not configured\n",
2586 __func__);
2587 return ret;
2588 }
2589 }
2590
2591 do_associate:
2592 ret = schedule_delayed_work(&wl->assoc_work, 0);
2593 pr_debug("%s: start association work %d\n", __func__, ret);
2594 return ret;
2595 }
2596
2597 /*
2598 * netdev handlers
2599 */
2600 static int gelic_wl_open(struct net_device *netdev)
2601 {
2602 struct gelic_card *card = netdev_card(netdev);
2603
2604 pr_debug("%s:->%p\n", __func__, netdev);
2605
2606 gelic_card_up(card);
2607
2608 /* try to associate */
2609 gelic_wl_try_associate(netdev);
2610
2611 netif_start_queue(netdev);
2612
2613 pr_debug("%s:<-\n", __func__);
2614 return 0;
2615 }
2616
2617 /*
2618 * reset state machine
2619 */
2620 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2621 {
2622 struct gelic_wl_scan_info *target;
2623 struct gelic_wl_scan_info *tmp;
2624
2625 /* empty scan list */
2626 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2627 list_move_tail(&target->list, &wl->network_free_list);
2628 }
2629 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2630
2631 /* clear configuration */
2632 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2633 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2634 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2635 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2636
2637 wl->key_enabled = 0;
2638 wl->current_key = 0;
2639
2640 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2641 wl->psk_len = 0;
2642
2643 wl->essid_len = 0;
2644 memset(wl->essid, 0, sizeof(wl->essid));
2645 memset(wl->bssid, 0, sizeof(wl->bssid));
2646 memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2647
2648 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2649
2650 memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2651 /* all status bit clear */
2652 wl->stat = 0;
2653 return 0;
2654 }
2655
2656 /*
2657 * Tell eurus to terminate association
2658 */
2659 static void gelic_wl_disconnect(struct net_device *netdev)
2660 {
2661 struct gelic_port *port = netdev_priv(netdev);
2662 struct gelic_wl_info *wl = port_wl(port);
2663 struct gelic_eurus_cmd *cmd;
2664
2665 /*
2666 * If scann process is running on chip,
2667 * further requests will be rejected
2668 */
2669 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2670 wait_for_completion_timeout(&wl->scan_done, HZ);
2671
2672 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2673 kfree(cmd);
2674 gelic_wl_send_iwap_event(wl, NULL);
2675 };
2676
2677 static int gelic_wl_stop(struct net_device *netdev)
2678 {
2679 struct gelic_port *port = netdev_priv(netdev);
2680 struct gelic_wl_info *wl = port_wl(port);
2681 struct gelic_card *card = netdev_card(netdev);
2682
2683 pr_debug("%s:<-\n", __func__);
2684
2685 /*
2686 * Cancel pending association work.
2687 * event work can run after netdev down
2688 */
2689 cancel_delayed_work(&wl->assoc_work);
2690
2691 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2692 gelic_wl_disconnect(netdev);
2693
2694 /* reset our state machine */
2695 gelic_wl_reset_state(wl);
2696
2697 netif_stop_queue(netdev);
2698
2699 gelic_card_down(card);
2700
2701 pr_debug("%s:->\n", __func__);
2702 return 0;
2703 }
2704
2705 /* -- */
2706
2707 static struct ethtool_ops gelic_wl_ethtool_ops = {
2708 .get_drvinfo = gelic_net_get_drvinfo,
2709 .get_link = gelic_wl_get_link,
2710 .get_tx_csum = ethtool_op_get_tx_csum,
2711 .set_tx_csum = ethtool_op_set_tx_csum,
2712 .get_rx_csum = gelic_net_get_rx_csum,
2713 .set_rx_csum = gelic_net_set_rx_csum,
2714 };
2715
2716 static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2717 {
2718 struct gelic_wl_info *wl;
2719 wl = port_wl(netdev_priv(netdev));
2720 BUG_ON(!wl);
2721 netdev->open = &gelic_wl_open;
2722 netdev->stop = &gelic_wl_stop;
2723 netdev->hard_start_xmit = &gelic_net_xmit;
2724 netdev->set_multicast_list = &gelic_net_set_multi;
2725 netdev->change_mtu = &gelic_net_change_mtu;
2726 netdev->wireless_data = &wl->wireless_data;
2727 netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2728 /* tx watchdog */
2729 netdev->tx_timeout = &gelic_net_tx_timeout;
2730 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2731
2732 netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2733 #ifdef CONFIG_NET_POLL_CONTROLLER
2734 netdev->poll_controller = gelic_net_poll_controller;
2735 #endif
2736 }
2737
2738 /*
2739 * driver probe/remove
2740 */
2741 int gelic_wl_driver_probe(struct gelic_card *card)
2742 {
2743 int ret;
2744 struct net_device *netdev;
2745
2746 pr_debug("%s:start\n", __func__);
2747
2748 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2749 return 0;
2750 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2751 return 0;
2752
2753 /* alloc netdevice for wireless */
2754 netdev = gelic_wl_alloc(card);
2755 if (!netdev)
2756 return -ENOMEM;
2757
2758 /* setup net_device structure */
2759 SET_NETDEV_DEV(netdev, &card->dev->core);
2760 gelic_wl_setup_netdev_ops(netdev);
2761
2762 /* setup some of net_device and register it */
2763 ret = gelic_net_setup_netdev(netdev, card);
2764 if (ret)
2765 goto fail_setup;
2766 card->netdev[GELIC_PORT_WIRELESS] = netdev;
2767
2768 /* add enable wireless interrupt */
2769 card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2770 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2771 /* to allow wireless commands while both interfaces are down */
2772 gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2773 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2774 pr_debug("%s:end\n", __func__);
2775 return 0;
2776
2777 fail_setup:
2778 gelic_wl_free(port_wl(netdev_port(netdev)));
2779
2780 return ret;
2781 }
2782
2783 int gelic_wl_driver_remove(struct gelic_card *card)
2784 {
2785 struct gelic_wl_info *wl;
2786 struct net_device *netdev;
2787
2788 pr_debug("%s:start\n", __func__);
2789
2790 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2791 return 0;
2792 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2793 return 0;
2794
2795 netdev = card->netdev[GELIC_PORT_WIRELESS];
2796 wl = port_wl(netdev_priv(netdev));
2797
2798 /* if the interface was not up, but associated */
2799 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2800 gelic_wl_disconnect(netdev);
2801
2802 complete(&wl->cmd_done_intr);
2803
2804 /* cancel all work queue */
2805 cancel_delayed_work(&wl->assoc_work);
2806 cancel_delayed_work(&wl->event_work);
2807 flush_workqueue(wl->eurus_cmd_queue);
2808 flush_workqueue(wl->event_queue);
2809
2810 unregister_netdev(netdev);
2811
2812 /* disable wireless interrupt */
2813 pr_debug("%s: disable intr\n", __func__);
2814 card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2815 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2816 /* free bss list, netdev*/
2817 gelic_wl_free(wl);
2818 pr_debug("%s:end\n", __func__);
2819 return 0;
2820 }
Support for the Chinese Samsung S3C2440 based development boards