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[ARM] pxa: Gumstix Verdex PCMCIA support
[linux-2.6/verdex.git] / drivers / net / ps3_gelic_wireless.c
blob227b141c4fbd3549bd0664bdb5288defa0657473
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/ieee80211.h>
34 #include <linux/if_arp.h>
35 #include <linux/ctype.h>
36 #include <linux/string.h>
37 #include <net/iw_handler.h>
38
39 #include <linux/dma-mapping.h>
40 #include <net/checksum.h>
41 #include <asm/firmware.h>
42 #include <asm/ps3.h>
43 #include <asm/lv1call.h>
44
45 #include "ps3_gelic_net.h"
46 #include "ps3_gelic_wireless.h"
47
48
49 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
50 u8 *essid, size_t essid_len);
51 static int gelic_wl_try_associate(struct net_device *netdev);
52
53 /*
54 * tables
55 */
56
57 /* 802.11b/g channel to freq in MHz */
58 static const int channel_freq[] = {
59 2412, 2417, 2422, 2427, 2432,
60 2437, 2442, 2447, 2452, 2457,
61 2462, 2467, 2472, 2484
62 };
63 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
64
65 /* in bps */
66 static const int bitrate_list[] = {
67 1000000,
68 2000000,
69 5500000,
70 11000000,
71 6000000,
72 9000000,
73 12000000,
74 18000000,
75 24000000,
76 36000000,
77 48000000,
78 54000000
79 };
80 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
81
82 /*
83 * wpa2 support requires the hypervisor version 2.0 or later
84 */
85 static inline int wpa2_capable(void)
86 {
87 return (0 <= ps3_compare_firmware_version(2, 0, 0));
88 }
89
90 static inline int precise_ie(void)
91 {
92 return (0 <= ps3_compare_firmware_version(2, 2, 0));
93 }
94 /*
95 * post_eurus_cmd helpers
96 */
97 struct eurus_cmd_arg_info {
98 int pre_arg; /* command requres arg1, arg2 at POST COMMAND */
99 int post_arg; /* command requires arg1, arg2 at GET_RESULT */
100 };
101
102 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
103 [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
104 [GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
105 [GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
106 [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
107 [GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
108 [GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
109 [GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
110 [GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1},
111 [GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
112 };
113
114 #ifdef DEBUG
115 static const char *cmdstr(enum gelic_eurus_command ix)
116 {
117 switch (ix) {
118 case GELIC_EURUS_CMD_ASSOC:
119 return "ASSOC";
120 case GELIC_EURUS_CMD_DISASSOC:
121 return "DISASSOC";
122 case GELIC_EURUS_CMD_START_SCAN:
123 return "SCAN";
124 case GELIC_EURUS_CMD_GET_SCAN:
125 return "GET SCAN";
126 case GELIC_EURUS_CMD_SET_COMMON_CFG:
127 return "SET_COMMON_CFG";
128 case GELIC_EURUS_CMD_GET_COMMON_CFG:
129 return "GET_COMMON_CFG";
130 case GELIC_EURUS_CMD_SET_WEP_CFG:
131 return "SET_WEP_CFG";
132 case GELIC_EURUS_CMD_GET_WEP_CFG:
133 return "GET_WEP_CFG";
134 case GELIC_EURUS_CMD_SET_WPA_CFG:
135 return "SET_WPA_CFG";
136 case GELIC_EURUS_CMD_GET_WPA_CFG:
137 return "GET_WPA_CFG";
138 case GELIC_EURUS_CMD_GET_RSSI_CFG:
139 return "GET_RSSI";
140 default:
141 break;
142 }
143 return "";
144 };
145 #else
146 static inline const char *cmdstr(enum gelic_eurus_command ix)
147 {
148 return "";
149 }
150 #endif
151
152 /* synchronously do eurus commands */
153 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
154 {
155 struct gelic_eurus_cmd *cmd;
156 struct gelic_card *card;
157 struct gelic_wl_info *wl;
158
159 u64 arg1, arg2;
160
161 pr_debug("%s: <-\n", __func__);
162 cmd = container_of(work, struct gelic_eurus_cmd, work);
163 BUG_ON(cmd_info[cmd->cmd].pre_arg &&
164 cmd_info[cmd->cmd].post_arg);
165 wl = cmd->wl;
166 card = port_to_card(wl_port(wl));
167
168 if (cmd_info[cmd->cmd].pre_arg) {
169 arg1 = (cmd->buffer) ?
170 ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
171 0;
172 arg2 = cmd->buf_size;
173 } else {
174 arg1 = 0;
175 arg2 = 0;
176 }
177 init_completion(&wl->cmd_done_intr);
178 pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
179 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
180 GELIC_LV1_POST_WLAN_CMD,
181 cmd->cmd, arg1, arg2,
182 &cmd->tag, &cmd->size);
183 if (cmd->status) {
184 complete(&cmd->done);
185 pr_info("%s: cmd issue failed\n", __func__);
186 return;
187 }
188
189 wait_for_completion(&wl->cmd_done_intr);
190
191 if (cmd_info[cmd->cmd].post_arg) {
192 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
193 arg2 = cmd->buf_size;
194 } else {
195 arg1 = 0;
196 arg2 = 0;
197 }
198
199 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
200 GELIC_LV1_GET_WLAN_CMD_RESULT,
201 cmd->tag, arg1, arg2,
202 &cmd->cmd_status, &cmd->size);
203 #ifdef DEBUG
204 if (cmd->status || cmd->cmd_status) {
205 pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
206 cmd->tag, arg1, arg2);
207 pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
208 __func__, cmd->status, cmd->cmd_status, cmd->size);
209 }
210 #endif
211 complete(&cmd->done);
212 pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
213 }
214
215 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
216 unsigned int eurus_cmd,
217 void *buffer,
218 unsigned int buf_size)
219 {
220 struct gelic_eurus_cmd *cmd;
221
222 /* allocate cmd */
223 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
224 if (!cmd)
225 return NULL;
226
227 /* initialize members */
228 cmd->cmd = eurus_cmd;
229 cmd->buffer = buffer;
230 cmd->buf_size = buf_size;
231 cmd->wl = wl;
232 INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
233 init_completion(&cmd->done);
234 queue_work(wl->eurus_cmd_queue, &cmd->work);
235
236 /* wait for command completion */
237 wait_for_completion(&cmd->done);
238
239 return cmd;
240 }
241
242 static u32 gelic_wl_get_link(struct net_device *netdev)
243 {
244 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
245 u32 ret;
246
247 pr_debug("%s: <-\n", __func__);
248 mutex_lock(&wl->assoc_stat_lock);
249 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
250 ret = 1;
251 else
252 ret = 0;
253 mutex_unlock(&wl->assoc_stat_lock);
254 pr_debug("%s: ->\n", __func__);
255 return ret;
256 }
257
258 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
259 {
260 union iwreq_data data;
261
262 memset(&data, 0, sizeof(data));
263 if (bssid)
264 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
265 data.ap_addr.sa_family = ARPHRD_ETHER;
266 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
267 &data, NULL);
268 }
269
270 /*
271 * wireless extension handlers and helpers
272 */
273
274 /* SIOGIWNAME */
275 static int gelic_wl_get_name(struct net_device *dev,
276 struct iw_request_info *info,
277 union iwreq_data *iwreq, char *extra)
278 {
279 strcpy(iwreq->name, "IEEE 802.11bg");
280 return 0;
281 }
282
283 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
284 {
285 struct gelic_card *card = port_to_card(wl_port(wl));
286 u64 ch_info_raw, tmp;
287 int status;
288
289 if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
290 status = lv1_net_control(bus_id(card), dev_id(card),
291 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
292 &ch_info_raw,
293 &tmp);
294 /* some fw versions may return error */
295 if (status) {
296 if (status != LV1_NO_ENTRY)
297 pr_info("%s: available ch unknown\n", __func__);
298 wl->ch_info = 0x07ff;/* 11 ch */
299 } else
300 /* 16 bits of MSB has available channels */
301 wl->ch_info = ch_info_raw >> 48;
302 }
303 return;
304 }
305
306 /* SIOGIWRANGE */
307 static int gelic_wl_get_range(struct net_device *netdev,
308 struct iw_request_info *info,
309 union iwreq_data *iwreq, char *extra)
310 {
311 struct iw_point *point = &iwreq->data;
312 struct iw_range *range = (struct iw_range *)extra;
313 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
314 unsigned int i, chs;
315
316 pr_debug("%s: <-\n", __func__);
317 point->length = sizeof(struct iw_range);
318 memset(range, 0, sizeof(struct iw_range));
319
320 range->we_version_compiled = WIRELESS_EXT;
321 range->we_version_source = 22;
322
323 /* available channels and frequencies */
324 gelic_wl_get_ch_info(wl);
325
326 for (i = 0, chs = 0;
327 i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
328 if (wl->ch_info & (1 << i)) {
329 range->freq[chs].i = i + 1;
330 range->freq[chs].m = channel_freq[i];
331 range->freq[chs].e = 6;
332 chs++;
333 }
334 range->num_frequency = chs;
335 range->old_num_frequency = chs;
336 range->num_channels = chs;
337 range->old_num_channels = chs;
338
339 /* bitrates */
340 for (i = 0; i < NUM_BITRATES; i++)
341 range->bitrate[i] = bitrate_list[i];
342 range->num_bitrates = i;
343
344 /* signal levels */
345 range->max_qual.qual = 100; /* relative value */
346 range->max_qual.level = 100;
347 range->avg_qual.qual = 50;
348 range->avg_qual.level = 50;
349 range->sensitivity = 0;
350
351 /* Event capability */
352 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
353 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
354 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
355
356 /* encryption capability */
357 range->enc_capa = IW_ENC_CAPA_WPA |
358 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
359 IW_ENC_CAPA_4WAY_HANDSHAKE;
360 if (wpa2_capable())
361 range->enc_capa |= IW_ENC_CAPA_WPA2;
362 range->encoding_size[0] = 5; /* 40bit WEP */
363 range->encoding_size[1] = 13; /* 104bit WEP */
364 range->encoding_size[2] = 32; /* WPA-PSK */
365 range->num_encoding_sizes = 3;
366 range->max_encoding_tokens = GELIC_WEP_KEYS;
367
368 /* scan capability */
369 range->scan_capa = IW_SCAN_CAPA_ESSID;
370
371 pr_debug("%s: ->\n", __func__);
372 return 0;
373
374 }
375
376 /* SIOC{G,S}IWSCAN */
377 static int gelic_wl_set_scan(struct net_device *netdev,
378 struct iw_request_info *info,
379 union iwreq_data *wrqu, char *extra)
380 {
381 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
382 struct iw_scan_req *req;
383 u8 *essid = NULL;
384 size_t essid_len = 0;
385
386 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
387 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
388 req = (struct iw_scan_req*)extra;
389 essid = req->essid;
390 essid_len = req->essid_len;
391 pr_debug("%s: ESSID scan =%s\n", __func__, essid);
392 }
393 return gelic_wl_start_scan(wl, 1, essid, essid_len);
394 }
395
396 #define OUI_LEN 3
397 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
398 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
399
400 /*
401 * synthesize WPA/RSN IE data
402 * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
403 * for the format
404 */
405 static size_t gelic_wl_synthesize_ie(u8 *buf,
406 struct gelic_eurus_scan_info *scan)
407 {
408
409 const u8 *oui_header;
410 u8 *start = buf;
411 int rsn;
412 int ccmp;
413
414 pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
415 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
416 case GELIC_EURUS_SCAN_SEC_WPA:
417 rsn = 0;
418 break;
419 case GELIC_EURUS_SCAN_SEC_WPA2:
420 rsn = 1;
421 break;
422 default:
423 /* WEP or none. No IE returned */
424 return 0;
425 }
426
427 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
428 case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
429 ccmp = 0;
430 break;
431 case GELIC_EURUS_SCAN_SEC_WPA_AES:
432 ccmp = 1;
433 break;
434 default:
435 if (rsn) {
436 ccmp = 1;
437 pr_info("%s: no cipher info. defaulted to CCMP\n",
438 __func__);
439 } else {
440 ccmp = 0;
441 pr_info("%s: no cipher info. defaulted to TKIP\n",
442 __func__);
443 }
444 }
445
446 if (rsn)
447 oui_header = rsn_oui;
448 else
449 oui_header = wpa_oui;
450
451 /* element id */
452 if (rsn)
453 *buf++ = WLAN_EID_RSN;
454 else
455 *buf++ = WLAN_EID_GENERIC;
456
457 /* length filed; set later */
458 buf++;
459
460 /* wpa special header */
461 if (!rsn) {
462 memcpy(buf, wpa_oui, OUI_LEN);
463 buf += OUI_LEN;
464 *buf++ = 0x01;
465 }
466
467 /* version */
468 *buf++ = 0x01; /* version 1.0 */
469 *buf++ = 0x00;
470
471 /* group cipher */
472 memcpy(buf, oui_header, OUI_LEN);
473 buf += OUI_LEN;
474
475 if (ccmp)
476 *buf++ = 0x04; /* CCMP */
477 else
478 *buf++ = 0x02; /* TKIP */
479
480 /* pairwise key count always 1 */
481 *buf++ = 0x01;
482 *buf++ = 0x00;
483
484 /* pairwise key suit */
485 memcpy(buf, oui_header, OUI_LEN);
486 buf += OUI_LEN;
487 if (ccmp)
488 *buf++ = 0x04; /* CCMP */
489 else
490 *buf++ = 0x02; /* TKIP */
491
492 /* AKM count is 1 */
493 *buf++ = 0x01;
494 *buf++ = 0x00;
495
496 /* AKM suite is assumed as PSK*/
497 memcpy(buf, oui_header, OUI_LEN);
498 buf += OUI_LEN;
499 *buf++ = 0x02; /* PSK */
500
501 /* RSN capabilities is 0 */
502 *buf++ = 0x00;
503 *buf++ = 0x00;
504
505 /* set length field */
506 start[1] = (buf - start - 2);
507
508 pr_debug("%s: ->\n", __func__);
509 return (buf - start);
510 }
511
512 struct ie_item {
513 u8 *data;
514 u8 len;
515 };
516
517 struct ie_info {
518 struct ie_item wpa;
519 struct ie_item rsn;
520 };
521
522 static void gelic_wl_parse_ie(u8 *data, size_t len,
523 struct ie_info *ie_info)
524 {
525 size_t data_left = len;
526 u8 *pos = data;
527 u8 item_len;
528 u8 item_id;
529
530 pr_debug("%s: data=%p len=%ld \n", __func__,
531 data, len);
532 memset(ie_info, 0, sizeof(struct ie_info));
533
534 while (2 <= data_left) {
535 item_id = *pos++;
536 item_len = *pos++;
537 data_left -= 2;
538
539 if (data_left < item_len)
540 break;
541
542 switch (item_id) {
543 case WLAN_EID_GENERIC:
544 if ((OUI_LEN + 1 <= item_len) &&
545 !memcmp(pos, wpa_oui, OUI_LEN) &&
546 pos[OUI_LEN] == 0x01) {
547 ie_info->wpa.data = pos - 2;
548 ie_info->wpa.len = item_len + 2;
549 }
550 break;
551 case WLAN_EID_RSN:
552 ie_info->rsn.data = pos - 2;
553 /* length includes the header */
554 ie_info->rsn.len = item_len + 2;
555 break;
556 default:
557 pr_debug("%s: ignore %#x,%d\n", __func__,
558 item_id, item_len);
559 break;
560 }
561 pos += item_len;
562 data_left -= item_len;
563 }
564 pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
565 ie_info->wpa.data, ie_info->wpa.len,
566 ie_info->rsn.data, ie_info->rsn.len);
567 }
568
569
570 /*
571 * translate the scan informations from hypervisor to a
572 * independent format
573 */
574 static char *gelic_wl_translate_scan(struct net_device *netdev,
575 struct iw_request_info *info,
576 char *ev,
577 char *stop,
578 struct gelic_wl_scan_info *network)
579 {
580 struct iw_event iwe;
581 struct gelic_eurus_scan_info *scan = network->hwinfo;
582 char *tmp;
583 u8 rate;
584 unsigned int i, j, len;
585 u8 buf[64]; /* arbitrary size large enough */
586
587 pr_debug("%s: <-\n", __func__);
588
589 /* first entry should be AP's mac address */
590 iwe.cmd = SIOCGIWAP;
591 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
592 memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
593 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
594
595 /* ESSID */
596 iwe.cmd = SIOCGIWESSID;
597 iwe.u.data.flags = 1;
598 iwe.u.data.length = strnlen(scan->essid, 32);
599 ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
600
601 /* FREQUENCY */
602 iwe.cmd = SIOCGIWFREQ;
603 iwe.u.freq.m = be16_to_cpu(scan->channel);
604 iwe.u.freq.e = 0; /* table value in MHz */
605 iwe.u.freq.i = 0;
606 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
607
608 /* RATES */
609 iwe.cmd = SIOCGIWRATE;
610 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
611 /* to stuff multiple values in one event */
612 tmp = ev + iwe_stream_lcp_len(info);
613 /* put them in ascendant order (older is first) */
614 i = 0;
615 j = 0;
616 pr_debug("%s: rates=%d rate=%d\n", __func__,
617 network->rate_len, network->rate_ext_len);
618 while (i < network->rate_len) {
619 if (j < network->rate_ext_len &&
620 ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
621 rate = scan->ext_rate[j++] & 0x7f;
622 else
623 rate = scan->rate[i++] & 0x7f;
624 iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
625 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
626 IW_EV_PARAM_LEN);
627 }
628 while (j < network->rate_ext_len) {
629 iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
630 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
631 IW_EV_PARAM_LEN);
632 }
633 /* Check if we added any rate */
634 if (iwe_stream_lcp_len(info) < (tmp - ev))
635 ev = tmp;
636
637 /* ENCODE */
638 iwe.cmd = SIOCGIWENCODE;
639 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
640 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
641 else
642 iwe.u.data.flags = IW_ENCODE_DISABLED;
643 iwe.u.data.length = 0;
644 ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
645
646 /* MODE */
647 iwe.cmd = SIOCGIWMODE;
648 if (be16_to_cpu(scan->capability) &
649 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
650 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
651 iwe.u.mode = IW_MODE_MASTER;
652 else
653 iwe.u.mode = IW_MODE_ADHOC;
654 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
655 }
656
657 /* QUAL */
658 iwe.cmd = IWEVQUAL;
659 iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
660 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
661 iwe.u.qual.level = be16_to_cpu(scan->rssi);
662 iwe.u.qual.qual = be16_to_cpu(scan->rssi);
663 iwe.u.qual.noise = 0;
664 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
665
666 /* RSN */
667 memset(&iwe, 0, sizeof(iwe));
668 if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
669 /* If wpa[2] capable station, synthesize IE and put it */
670 len = gelic_wl_synthesize_ie(buf, scan);
671 if (len) {
672 iwe.cmd = IWEVGENIE;
673 iwe.u.data.length = len;
674 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
675 }
676 } else {
677 /* this scan info has IE data */
678 struct ie_info ie_info;
679 size_t data_len;
680
681 data_len = be16_to_cpu(scan->size) - sizeof(*scan);
682
683 gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
684
685 if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
686 memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
687 iwe.cmd = IWEVGENIE;
688 iwe.u.data.length = ie_info.wpa.len;
689 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
690 }
691
692 if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
693 memset(&iwe, 0, sizeof(iwe));
694 memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
695 iwe.cmd = IWEVGENIE;
696 iwe.u.data.length = ie_info.rsn.len;
697 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
698 }
699 }
700
701 pr_debug("%s: ->\n", __func__);
702 return ev;
703 }
704
705
706 static int gelic_wl_get_scan(struct net_device *netdev,
707 struct iw_request_info *info,
708 union iwreq_data *wrqu, char *extra)
709 {
710 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
711 struct gelic_wl_scan_info *scan_info;
712 char *ev = extra;
713 char *stop = ev + wrqu->data.length;
714 int ret = 0;
715 unsigned long this_time = jiffies;
716
717 pr_debug("%s: <-\n", __func__);
718 if (mutex_lock_interruptible(&wl->scan_lock))
719 return -EAGAIN;
720
721 switch (wl->scan_stat) {
722 case GELIC_WL_SCAN_STAT_SCANNING:
723 /* If a scan in progress, caller should call me again */
724 ret = -EAGAIN;
725 goto out;
726 break;
727
728 case GELIC_WL_SCAN_STAT_INIT:
729 /* last scan request failed or never issued */
730 ret = -ENODEV;
731 goto out;
732 break;
733 case GELIC_WL_SCAN_STAT_GOT_LIST:
734 /* ok, use current list */
735 break;
736 }
737
738 list_for_each_entry(scan_info, &wl->network_list, list) {
739 if (wl->scan_age == 0 ||
740 time_after(scan_info->last_scanned + wl->scan_age,
741 this_time))
742 ev = gelic_wl_translate_scan(netdev, info,
743 ev, stop,
744 scan_info);
745 else
746 pr_debug("%s:entry too old\n", __func__);
747
748 if (stop - ev <= IW_EV_ADDR_LEN) {
749 ret = -E2BIG;
750 goto out;
751 }
752 }
753
754 wrqu->data.length = ev - extra;
755 wrqu->data.flags = 0;
756 out:
757 mutex_unlock(&wl->scan_lock);
758 pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
759 return ret;
760 }
761
762 #ifdef DEBUG
763 static void scan_list_dump(struct gelic_wl_info *wl)
764 {
765 struct gelic_wl_scan_info *scan_info;
766 int i;
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=%pM\n", &scan_info->hwinfo->bssid[2]);
779 pr_debug("essid=%s\n", scan_info->hwinfo->essid);
780 }
781 }
782 #endif
783
784 static int gelic_wl_set_auth(struct net_device *netdev,
785 struct iw_request_info *info,
786 union iwreq_data *data, char *extra)
787 {
788 struct iw_param *param = &data->param;
789 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
790 unsigned long irqflag;
791 int ret = 0;
792
793 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
794 spin_lock_irqsave(&wl->lock, irqflag);
795 switch (param->flags & IW_AUTH_INDEX) {
796 case IW_AUTH_WPA_VERSION:
797 if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
798 pr_debug("%s: NO WPA selected\n", __func__);
799 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
800 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
801 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
802 }
803 if (param->value & IW_AUTH_WPA_VERSION_WPA) {
804 pr_debug("%s: WPA version 1 selected\n", __func__);
805 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
806 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
807 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
808 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
809 }
810 if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
811 /*
812 * As the hypervisor may not tell the cipher
813 * information of the AP if it is WPA2,
814 * you will not decide suitable cipher from
815 * its beacon.
816 * You should have knowledge about the AP's
817 * cipher infomation in other method prior to
818 * the association.
819 */
820 if (!precise_ie())
821 pr_info("%s: WPA2 may not work\n", __func__);
822 if (wpa2_capable()) {
823 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
824 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
825 wl->pairwise_cipher_method =
826 GELIC_WL_CIPHER_AES;
827 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
828 } else
829 ret = -EINVAL;
830 }
831 break;
832
833 case IW_AUTH_CIPHER_PAIRWISE:
834 if (param->value &
835 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
836 pr_debug("%s: WEP selected\n", __func__);
837 wl->pairwise_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->pairwise_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->pairwise_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->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
850 }
851 break;
852 case IW_AUTH_CIPHER_GROUP:
853 if (param->value &
854 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
855 pr_debug("%s: WEP selected\n", __func__);
856 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
857 }
858 if (param->value & IW_AUTH_CIPHER_TKIP) {
859 pr_debug("%s: TKIP selected\n", __func__);
860 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
861 }
862 if (param->value & IW_AUTH_CIPHER_CCMP) {
863 pr_debug("%s: CCMP selected\n", __func__);
864 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
865 }
866 if (param->value & IW_AUTH_CIPHER_NONE) {
867 pr_debug("%s: no auth selected\n", __func__);
868 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
869 }
870 break;
871 case IW_AUTH_80211_AUTH_ALG:
872 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
873 pr_debug("%s: shared key specified\n", __func__);
874 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
875 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
876 pr_debug("%s: open system specified\n", __func__);
877 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
878 } else
879 ret = -EINVAL;
880 break;
881
882 case IW_AUTH_WPA_ENABLED:
883 if (param->value) {
884 pr_debug("%s: WPA enabled\n", __func__);
885 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
886 } else {
887 pr_debug("%s: WPA disabled\n", __func__);
888 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
889 }
890 break;
891
892 case IW_AUTH_KEY_MGMT:
893 if (param->value & IW_AUTH_KEY_MGMT_PSK)
894 break;
895 /* intentionally fall through */
896 default:
897 ret = -EOPNOTSUPP;
898 break;
899 };
900
901 if (!ret)
902 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
903
904 spin_unlock_irqrestore(&wl->lock, irqflag);
905 pr_debug("%s: -> %d\n", __func__, ret);
906 return ret;
907 }
908
909 static int gelic_wl_get_auth(struct net_device *netdev,
910 struct iw_request_info *info,
911 union iwreq_data *iwreq, char *extra)
912 {
913 struct iw_param *param = &iwreq->param;
914 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
915 unsigned long irqflag;
916 int ret = 0;
917
918 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
919 spin_lock_irqsave(&wl->lock, irqflag);
920 switch (param->flags & IW_AUTH_INDEX) {
921 case IW_AUTH_WPA_VERSION:
922 switch (wl->wpa_level) {
923 case GELIC_WL_WPA_LEVEL_WPA:
924 param->value |= IW_AUTH_WPA_VERSION_WPA;
925 break;
926 case GELIC_WL_WPA_LEVEL_WPA2:
927 param->value |= IW_AUTH_WPA_VERSION_WPA2;
928 break;
929 default:
930 param->value |= IW_AUTH_WPA_VERSION_DISABLED;
931 }
932 break;
933
934 case IW_AUTH_80211_AUTH_ALG:
935 if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
936 param->value = IW_AUTH_ALG_SHARED_KEY;
937 else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
938 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
939 break;
940
941 case IW_AUTH_WPA_ENABLED:
942 switch (wl->wpa_level) {
943 case GELIC_WL_WPA_LEVEL_WPA:
944 case GELIC_WL_WPA_LEVEL_WPA2:
945 param->value = 1;
946 break;
947 default:
948 param->value = 0;
949 break;
950 }
951 break;
952 default:
953 ret = -EOPNOTSUPP;
954 }
955
956 spin_unlock_irqrestore(&wl->lock, irqflag);
957 pr_debug("%s: -> %d\n", __func__, ret);
958 return ret;
959 }
960
961 /* SIOC{S,G}IWESSID */
962 static int gelic_wl_set_essid(struct net_device *netdev,
963 struct iw_request_info *info,
964 union iwreq_data *data, char *extra)
965 {
966 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
967 unsigned long irqflag;
968
969 pr_debug("%s: <- l=%d f=%d\n", __func__,
970 data->essid.length, data->essid.flags);
971 if (IW_ESSID_MAX_SIZE < data->essid.length)
972 return -EINVAL;
973
974 spin_lock_irqsave(&wl->lock, irqflag);
975 if (data->essid.flags) {
976 wl->essid_len = data->essid.length;
977 memcpy(wl->essid, extra, wl->essid_len);
978 pr_debug("%s: essid = '%s'\n", __func__, extra);
979 set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
980 } else {
981 pr_debug("%s: ESSID any \n", __func__);
982 clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
983 }
984 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
985 spin_unlock_irqrestore(&wl->lock, irqflag);
986
987
988 gelic_wl_try_associate(netdev); /* FIXME */
989 pr_debug("%s: -> \n", __func__);
990 return 0;
991 }
992
993 static int gelic_wl_get_essid(struct net_device *netdev,
994 struct iw_request_info *info,
995 union iwreq_data *data, char *extra)
996 {
997 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
998 unsigned long irqflag;
999
1000 pr_debug("%s: <- \n", __func__);
1001 mutex_lock(&wl->assoc_stat_lock);
1002 spin_lock_irqsave(&wl->lock, irqflag);
1003 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
1004 wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1005 memcpy(extra, wl->essid, wl->essid_len);
1006 data->essid.length = wl->essid_len;
1007 data->essid.flags = 1;
1008 } else
1009 data->essid.flags = 0;
1010
1011 mutex_unlock(&wl->assoc_stat_lock);
1012 spin_unlock_irqrestore(&wl->lock, irqflag);
1013 pr_debug("%s: -> len=%d \n", __func__, data->essid.length);
1014
1015 return 0;
1016 }
1017
1018 /* SIO{S,G}IWENCODE */
1019 static int gelic_wl_set_encode(struct net_device *netdev,
1020 struct iw_request_info *info,
1021 union iwreq_data *data, char *extra)
1022 {
1023 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1024 struct iw_point *enc = &data->encoding;
1025 __u16 flags;
1026 unsigned long irqflag;
1027 int key_index, index_specified;
1028 int ret = 0;
1029
1030 pr_debug("%s: <- \n", __func__);
1031 flags = enc->flags & IW_ENCODE_FLAGS;
1032 key_index = enc->flags & IW_ENCODE_INDEX;
1033
1034 pr_debug("%s: key_index = %d\n", __func__, key_index);
1035 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1036 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1037
1038 if (GELIC_WEP_KEYS < key_index)
1039 return -EINVAL;
1040
1041 spin_lock_irqsave(&wl->lock, irqflag);
1042 if (key_index) {
1043 index_specified = 1;
1044 key_index--;
1045 } else {
1046 index_specified = 0;
1047 key_index = wl->current_key;
1048 }
1049
1050 if (flags & IW_ENCODE_NOKEY) {
1051 /* if just IW_ENCODE_NOKEY, change current key index */
1052 if (!flags && index_specified) {
1053 wl->current_key = key_index;
1054 goto done;
1055 }
1056
1057 if (flags & IW_ENCODE_DISABLED) {
1058 if (!index_specified) {
1059 /* disable encryption */
1060 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1061 wl->pairwise_cipher_method =
1062 GELIC_WL_CIPHER_NONE;
1063 /* invalidate all key */
1064 wl->key_enabled = 0;
1065 } else
1066 clear_bit(key_index, &wl->key_enabled);
1067 }
1068
1069 if (flags & IW_ENCODE_OPEN)
1070 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1071 if (flags & IW_ENCODE_RESTRICTED) {
1072 pr_info("%s: shared key mode enabled\n", __func__);
1073 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1074 }
1075 } else {
1076 if (IW_ENCODING_TOKEN_MAX < enc->length) {
1077 ret = -EINVAL;
1078 goto done;
1079 }
1080 wl->key_len[key_index] = enc->length;
1081 memcpy(wl->key[key_index], extra, enc->length);
1082 set_bit(key_index, &wl->key_enabled);
1083 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1084 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1085 }
1086 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1087 done:
1088 spin_unlock_irqrestore(&wl->lock, irqflag);
1089 pr_debug("%s: -> \n", __func__);
1090 return ret;
1091 }
1092
1093 static int gelic_wl_get_encode(struct net_device *netdev,
1094 struct iw_request_info *info,
1095 union iwreq_data *data, char *extra)
1096 {
1097 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1098 struct iw_point *enc = &data->encoding;
1099 unsigned long irqflag;
1100 unsigned int key_index, index_specified;
1101 int ret = 0;
1102
1103 pr_debug("%s: <- \n", __func__);
1104 key_index = enc->flags & IW_ENCODE_INDEX;
1105 pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1106 enc->flags, enc->pointer, enc->length, extra);
1107 if (GELIC_WEP_KEYS < key_index)
1108 return -EINVAL;
1109
1110 spin_lock_irqsave(&wl->lock, irqflag);
1111 if (key_index) {
1112 index_specified = 1;
1113 key_index--;
1114 } else {
1115 index_specified = 0;
1116 key_index = wl->current_key;
1117 }
1118
1119 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1120 switch (wl->auth_method) {
1121 case GELIC_EURUS_AUTH_OPEN:
1122 enc->flags = IW_ENCODE_OPEN;
1123 break;
1124 case GELIC_EURUS_AUTH_SHARED:
1125 enc->flags = IW_ENCODE_RESTRICTED;
1126 break;
1127 }
1128 } else
1129 enc->flags = IW_ENCODE_DISABLED;
1130
1131 if (test_bit(key_index, &wl->key_enabled)) {
1132 if (enc->length < wl->key_len[key_index]) {
1133 ret = -EINVAL;
1134 goto done;
1135 }
1136 enc->length = wl->key_len[key_index];
1137 memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1138 } else {
1139 enc->length = 0;
1140 enc->flags |= IW_ENCODE_NOKEY;
1141 }
1142 enc->flags |= key_index + 1;
1143 pr_debug("%s: -> flag=%x len=%d\n", __func__,
1144 enc->flags, enc->length);
1145
1146 done:
1147 spin_unlock_irqrestore(&wl->lock, irqflag);
1148 return ret;
1149 }
1150
1151 /* SIOC{S,G}IWAP */
1152 static int gelic_wl_set_ap(struct net_device *netdev,
1153 struct iw_request_info *info,
1154 union iwreq_data *data, char *extra)
1155 {
1156 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1157 unsigned long irqflag;
1158
1159 pr_debug("%s: <-\n", __func__);
1160 if (data->ap_addr.sa_family != ARPHRD_ETHER)
1161 return -EINVAL;
1162
1163 spin_lock_irqsave(&wl->lock, irqflag);
1164 if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1165 memcpy(wl->bssid, data->ap_addr.sa_data,
1166 ETH_ALEN);
1167 set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1168 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1169 pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1170 } else {
1171 pr_debug("%s: clear bssid\n", __func__);
1172 clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1173 memset(wl->bssid, 0, ETH_ALEN);
1174 }
1175 spin_unlock_irqrestore(&wl->lock, irqflag);
1176 pr_debug("%s: ->\n", __func__);
1177 return 0;
1178 }
1179
1180 static int gelic_wl_get_ap(struct net_device *netdev,
1181 struct iw_request_info *info,
1182 union iwreq_data *data, char *extra)
1183 {
1184 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1185 unsigned long irqflag;
1186
1187 pr_debug("%s: <-\n", __func__);
1188 mutex_lock(&wl->assoc_stat_lock);
1189 spin_lock_irqsave(&wl->lock, irqflag);
1190 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1191 data->ap_addr.sa_family = ARPHRD_ETHER;
1192 memcpy(data->ap_addr.sa_data, wl->active_bssid,
1193 ETH_ALEN);
1194 } else
1195 memset(data->ap_addr.sa_data, 0, ETH_ALEN);
1196
1197 spin_unlock_irqrestore(&wl->lock, irqflag);
1198 mutex_unlock(&wl->assoc_stat_lock);
1199 pr_debug("%s: ->\n", __func__);
1200 return 0;
1201 }
1202
1203 /* SIOC{S,G}IWENCODEEXT */
1204 static int gelic_wl_set_encodeext(struct net_device *netdev,
1205 struct iw_request_info *info,
1206 union iwreq_data *data, char *extra)
1207 {
1208 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1209 struct iw_point *enc = &data->encoding;
1210 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1211 __u16 alg;
1212 __u16 flags;
1213 unsigned long irqflag;
1214 int key_index;
1215 int ret = 0;
1216
1217 pr_debug("%s: <- \n", __func__);
1218 flags = enc->flags & IW_ENCODE_FLAGS;
1219 alg = ext->alg;
1220 key_index = enc->flags & IW_ENCODE_INDEX;
1221
1222 pr_debug("%s: key_index = %d\n", __func__, key_index);
1223 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1224 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1225 pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1226 pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1227
1228 if (GELIC_WEP_KEYS < key_index)
1229 return -EINVAL;
1230
1231 spin_lock_irqsave(&wl->lock, irqflag);
1232 if (key_index)
1233 key_index--;
1234 else
1235 key_index = wl->current_key;
1236
1237 if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1238 /* reques to change default key index */
1239 pr_debug("%s: request to change default key to %d\n",
1240 __func__, key_index);
1241 wl->current_key = key_index;
1242 goto done;
1243 }
1244
1245 if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1246 pr_debug("%s: alg disabled\n", __func__);
1247 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1248 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1249 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1250 wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1251 } else if (alg == IW_ENCODE_ALG_WEP) {
1252 pr_debug("%s: WEP requested\n", __func__);
1253 if (flags & IW_ENCODE_OPEN) {
1254 pr_debug("%s: open key mode\n", __func__);
1255 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1256 }
1257 if (flags & IW_ENCODE_RESTRICTED) {
1258 pr_debug("%s: shared key mode\n", __func__);
1259 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1260 }
1261 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1262 pr_info("%s: key is too long %d\n", __func__,
1263 ext->key_len);
1264 ret = -EINVAL;
1265 goto done;
1266 }
1267 /* OK, update the key */
1268 wl->key_len[key_index] = ext->key_len;
1269 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1270 memcpy(wl->key[key_index], ext->key, ext->key_len);
1271 set_bit(key_index, &wl->key_enabled);
1272 /* remember wep info changed */
1273 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1274 } else if (alg == IW_ENCODE_ALG_PMK) {
1275 if (ext->key_len != WPA_PSK_LEN) {
1276 pr_err("%s: PSK length wrong %d\n", __func__,
1277 ext->key_len);
1278 ret = -EINVAL;
1279 goto done;
1280 }
1281 memset(wl->psk, 0, sizeof(wl->psk));
1282 memcpy(wl->psk, ext->key, ext->key_len);
1283 wl->psk_len = ext->key_len;
1284 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1285 /* remember PSK configured */
1286 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1287 }
1288 done:
1289 spin_unlock_irqrestore(&wl->lock, irqflag);
1290 pr_debug("%s: -> \n", __func__);
1291 return ret;
1292 }
1293
1294 static int gelic_wl_get_encodeext(struct net_device *netdev,
1295 struct iw_request_info *info,
1296 union iwreq_data *data, char *extra)
1297 {
1298 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1299 struct iw_point *enc = &data->encoding;
1300 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1301 unsigned long irqflag;
1302 int key_index;
1303 int ret = 0;
1304 int max_key_len;
1305
1306 pr_debug("%s: <- \n", __func__);
1307
1308 max_key_len = enc->length - sizeof(struct iw_encode_ext);
1309 if (max_key_len < 0)
1310 return -EINVAL;
1311 key_index = enc->flags & IW_ENCODE_INDEX;
1312
1313 pr_debug("%s: key_index = %d\n", __func__, key_index);
1314 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1315 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1316
1317 if (GELIC_WEP_KEYS < key_index)
1318 return -EINVAL;
1319
1320 spin_lock_irqsave(&wl->lock, irqflag);
1321 if (key_index)
1322 key_index--;
1323 else
1324 key_index = wl->current_key;
1325
1326 memset(ext, 0, sizeof(struct iw_encode_ext));
1327 switch (wl->group_cipher_method) {
1328 case GELIC_WL_CIPHER_WEP:
1329 ext->alg = IW_ENCODE_ALG_WEP;
1330 enc->flags |= IW_ENCODE_ENABLED;
1331 break;
1332 case GELIC_WL_CIPHER_TKIP:
1333 ext->alg = IW_ENCODE_ALG_TKIP;
1334 enc->flags |= IW_ENCODE_ENABLED;
1335 break;
1336 case GELIC_WL_CIPHER_AES:
1337 ext->alg = IW_ENCODE_ALG_CCMP;
1338 enc->flags |= IW_ENCODE_ENABLED;
1339 break;
1340 case GELIC_WL_CIPHER_NONE:
1341 default:
1342 ext->alg = IW_ENCODE_ALG_NONE;
1343 enc->flags |= IW_ENCODE_NOKEY;
1344 break;
1345 }
1346
1347 if (!(enc->flags & IW_ENCODE_NOKEY)) {
1348 if (max_key_len < wl->key_len[key_index]) {
1349 ret = -E2BIG;
1350 goto out;
1351 }
1352 if (test_bit(key_index, &wl->key_enabled))
1353 memcpy(ext->key, wl->key[key_index],
1354 wl->key_len[key_index]);
1355 else
1356 pr_debug("%s: disabled key requested ix=%d\n",
1357 __func__, key_index);
1358 }
1359 out:
1360 spin_unlock_irqrestore(&wl->lock, irqflag);
1361 pr_debug("%s: -> \n", __func__);
1362 return ret;
1363 }
1364 /* SIOC{S,G}IWMODE */
1365 static int gelic_wl_set_mode(struct net_device *netdev,
1366 struct iw_request_info *info,
1367 union iwreq_data *data, char *extra)
1368 {
1369 __u32 mode = data->mode;
1370 int ret;
1371
1372 pr_debug("%s: <- \n", __func__);
1373 if (mode == IW_MODE_INFRA)
1374 ret = 0;
1375 else
1376 ret = -EOPNOTSUPP;
1377 pr_debug("%s: -> %d\n", __func__, ret);
1378 return ret;
1379 }
1380
1381 static int gelic_wl_get_mode(struct net_device *netdev,
1382 struct iw_request_info *info,
1383 union iwreq_data *data, char *extra)
1384 {
1385 __u32 *mode = &data->mode;
1386 pr_debug("%s: <- \n", __func__);
1387 *mode = IW_MODE_INFRA;
1388 pr_debug("%s: ->\n", __func__);
1389 return 0;
1390 }
1391
1392 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
1393 /* SIOCIWFIRSTPRIV */
1394 static int hex2bin(u8 *str, u8 *bin, unsigned int len)
1395 {
1396 unsigned int i;
1397 static unsigned char *hex = "0123456789ABCDEF";
1398 unsigned char *p, *q;
1399 u8 tmp;
1400
1401 if (len != WPA_PSK_LEN * 2)
1402 return -EINVAL;
1403
1404 for (i = 0; i < WPA_PSK_LEN * 2; i += 2) {
1405 p = strchr(hex, toupper(str[i]));
1406 q = strchr(hex, toupper(str[i + 1]));
1407 if (!p || !q) {
1408 pr_info("%s: unconvertible PSK digit=%d\n",
1409 __func__, i);
1410 return -EINVAL;
1411 }
1412 tmp = ((p - hex) << 4) + (q - hex);
1413 *bin++ = tmp;
1414 }
1415 return 0;
1416 };
1417
1418 static int gelic_wl_priv_set_psk(struct net_device *net_dev,
1419 struct iw_request_info *info,
1420 union iwreq_data *data, char *extra)
1421 {
1422 struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1423 unsigned int len;
1424 unsigned long irqflag;
1425 int ret = 0;
1426
1427 pr_debug("%s:<- len=%d\n", __func__, data->data.length);
1428 len = data->data.length - 1;
1429 if (len <= 2)
1430 return -EINVAL;
1431
1432 spin_lock_irqsave(&wl->lock, irqflag);
1433 if (extra[0] == '"' && extra[len - 1] == '"') {
1434 pr_debug("%s: passphrase mode\n", __func__);
1435 /* pass phrase */
1436 if (GELIC_WL_EURUS_PSK_MAX_LEN < (len - 2)) {
1437 pr_info("%s: passphrase too long\n", __func__);
1438 ret = -E2BIG;
1439 goto out;
1440 }
1441 memset(wl->psk, 0, sizeof(wl->psk));
1442 wl->psk_len = len - 2;
1443 memcpy(wl->psk, &(extra[1]), wl->psk_len);
1444 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
1445 } else {
1446 ret = hex2bin(extra, wl->psk, len);
1447 if (ret)
1448 goto out;
1449 wl->psk_len = WPA_PSK_LEN;
1450 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1451 }
1452 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1453 out:
1454 spin_unlock_irqrestore(&wl->lock, irqflag);
1455 pr_debug("%s:->\n", __func__);
1456 return ret;
1457 }
1458
1459 static int gelic_wl_priv_get_psk(struct net_device *net_dev,
1460 struct iw_request_info *info,
1461 union iwreq_data *data, char *extra)
1462 {
1463 struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1464 char *p;
1465 unsigned long irqflag;
1466 unsigned int i;
1467
1468 pr_debug("%s:<-\n", __func__);
1469 if (!capable(CAP_NET_ADMIN))
1470 return -EPERM;
1471
1472 spin_lock_irqsave(&wl->lock, irqflag);
1473 p = extra;
1474 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat)) {
1475 if (wl->psk_type == GELIC_EURUS_WPA_PSK_BIN) {
1476 for (i = 0; i < wl->psk_len; i++) {
1477 sprintf(p, "%02xu", wl->psk[i]);
1478 p += 2;
1479 }
1480 *p = '\0';
1481 data->data.length = wl->psk_len * 2;
1482 } else {
1483 *p++ = '"';
1484 memcpy(p, wl->psk, wl->psk_len);
1485 p += wl->psk_len;
1486 *p++ = '"';
1487 *p = '\0';
1488 data->data.length = wl->psk_len + 2;
1489 }
1490 } else
1491 /* no psk set */
1492 data->data.length = 0;
1493 spin_unlock_irqrestore(&wl->lock, irqflag);
1494 pr_debug("%s:-> %d\n", __func__, data->data.length);
1495 return 0;
1496 }
1497 #endif
1498
1499 /* SIOCGIWNICKN */
1500 static int gelic_wl_get_nick(struct net_device *net_dev,
1501 struct iw_request_info *info,
1502 union iwreq_data *data, char *extra)
1503 {
1504 strcpy(extra, "gelic_wl");
1505 data->data.length = strlen(extra);
1506 data->data.flags = 1;
1507 return 0;
1508 }
1509
1510
1511 /* --- */
1512
1513 static struct iw_statistics *gelic_wl_get_wireless_stats(
1514 struct net_device *netdev)
1515 {
1516
1517 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1518 struct gelic_eurus_cmd *cmd;
1519 struct iw_statistics *is;
1520 struct gelic_eurus_rssi_info *rssi;
1521 void *buf;
1522
1523 pr_debug("%s: <-\n", __func__);
1524
1525 buf = (void *)__get_free_page(GFP_KERNEL);
1526 if (!buf)
1527 return NULL;
1528
1529 is = &wl->iwstat;
1530 memset(is, 0, sizeof(*is));
1531 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1532 buf, sizeof(*rssi));
1533 if (cmd && !cmd->status && !cmd->cmd_status) {
1534 rssi = buf;
1535 is->qual.level = be16_to_cpu(rssi->rssi);
1536 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1537 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1538 } else
1539 /* not associated */
1540 is->qual.updated = IW_QUAL_ALL_INVALID;
1541
1542 kfree(cmd);
1543 free_page((unsigned long)buf);
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 u8 *essid, size_t essid_len)
1553 {
1554 struct gelic_eurus_cmd *cmd;
1555 int ret = 0;
1556 void *buf = NULL;
1557 size_t len;
1558
1559 pr_debug("%s: <- always=%d\n", __func__, always_scan);
1560 if (mutex_lock_interruptible(&wl->scan_lock))
1561 return -ERESTARTSYS;
1562
1563 /*
1564 * If already a scan in progress, do not trigger more
1565 */
1566 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1567 pr_debug("%s: scanning now\n", __func__);
1568 goto out;
1569 }
1570
1571 init_completion(&wl->scan_done);
1572 /*
1573 * If we have already a bss list, don't try to get new
1574 */
1575 if (!always_scan && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1576 pr_debug("%s: already has the list\n", __func__);
1577 complete(&wl->scan_done);
1578 goto out;
1579 }
1580
1581 /* ESSID scan ? */
1582 if (essid_len && essid) {
1583 buf = (void *)__get_free_page(GFP_KERNEL);
1584 if (!buf) {
1585 ret = -ENOMEM;
1586 goto out;
1587 }
1588 len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1589 memset(buf, 0, len);
1590 memcpy(buf, essid, essid_len);
1591 pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1592 } else
1593 len = 0;
1594
1595 /*
1596 * issue start scan request
1597 */
1598 wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1599 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1600 buf, len);
1601 if (!cmd || cmd->status || cmd->cmd_status) {
1602 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1603 complete(&wl->scan_done);
1604 ret = -ENOMEM;
1605 goto out;
1606 }
1607 kfree(cmd);
1608 out:
1609 free_page((unsigned long)buf);
1610 mutex_unlock(&wl->scan_lock);
1611 pr_debug("%s: ->\n", __func__);
1612 return ret;
1613 }
1614
1615 /*
1616 * retrieve scan result from the chip (hypervisor)
1617 * this function is invoked by schedule work.
1618 */
1619 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1620 {
1621 struct gelic_eurus_cmd *cmd = NULL;
1622 struct gelic_wl_scan_info *target, *tmp;
1623 struct gelic_wl_scan_info *oldest = NULL;
1624 struct gelic_eurus_scan_info *scan_info;
1625 unsigned int scan_info_size;
1626 union iwreq_data data;
1627 unsigned long this_time = jiffies;
1628 unsigned int data_len, i, found, r;
1629 void *buf;
1630
1631 pr_debug("%s:start\n", __func__);
1632 mutex_lock(&wl->scan_lock);
1633
1634 buf = (void *)__get_free_page(GFP_KERNEL);
1635 if (!buf) {
1636 pr_info("%s: scan buffer alloc failed\n", __func__);
1637 goto out;
1638 }
1639
1640 if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1641 /*
1642 * stop() may be called while scanning, ignore result
1643 */
1644 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1645 __func__, wl->scan_stat);
1646 goto out;
1647 }
1648
1649 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1650 buf, PAGE_SIZE);
1651 if (!cmd || cmd->status || cmd->cmd_status) {
1652 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1653 pr_info("%s:cmd failed\n", __func__);
1654 kfree(cmd);
1655 goto out;
1656 }
1657 data_len = cmd->size;
1658 pr_debug("%s: data_len = %d\n", __func__, data_len);
1659 kfree(cmd);
1660
1661 /* OK, bss list retrieved */
1662 wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1663
1664 /* mark all entries are old */
1665 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1666 target->valid = 0;
1667 /* expire too old entries */
1668 if (time_before(target->last_scanned + wl->scan_age,
1669 this_time)) {
1670 kfree(target->hwinfo);
1671 target->hwinfo = NULL;
1672 list_move_tail(&target->list, &wl->network_free_list);
1673 }
1674 }
1675
1676 /* put them in the newtork_list */
1677 for (i = 0, scan_info_size = 0, scan_info = buf;
1678 scan_info_size < data_len;
1679 i++, scan_info_size += be16_to_cpu(scan_info->size),
1680 scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1681 pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1682 be16_to_cpu(scan_info->size),
1683 &scan_info->bssid[2], scan_info);
1684
1685 /*
1686 * The wireless firmware may return invalid channel 0 and/or
1687 * invalid rate if the AP emits zero length SSID ie. As this
1688 * scan information is useless, ignore it
1689 */
1690 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1691 pr_debug("%s: invalid scan info\n", __func__);
1692 continue;
1693 }
1694
1695 found = 0;
1696 oldest = NULL;
1697 list_for_each_entry(target, &wl->network_list, list) {
1698 if (!compare_ether_addr(&target->hwinfo->bssid[2],
1699 &scan_info->bssid[2])) {
1700 found = 1;
1701 pr_debug("%s: same BBS found scanned list\n",
1702 __func__);
1703 break;
1704 }
1705 if (!oldest ||
1706 (target->last_scanned < oldest->last_scanned))
1707 oldest = target;
1708 }
1709
1710 if (!found) {
1711 /* not found in the list */
1712 if (list_empty(&wl->network_free_list)) {
1713 /* expire oldest */
1714 target = oldest;
1715 } else {
1716 target = list_entry(wl->network_free_list.next,
1717 struct gelic_wl_scan_info,
1718 list);
1719 }
1720 }
1721
1722 /* update the item */
1723 target->last_scanned = this_time;
1724 target->valid = 1;
1725 target->eurus_index = i;
1726 kfree(target->hwinfo);
1727 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1728 GFP_KERNEL);
1729 if (!target->hwinfo) {
1730 pr_info("%s: kzalloc failed\n", __func__);
1731 continue;
1732 }
1733 /* copy hw scan info */
1734 memcpy(target->hwinfo, scan_info, scan_info->size);
1735 target->essid_len = strnlen(scan_info->essid,
1736 sizeof(scan_info->essid));
1737 target->rate_len = 0;
1738 for (r = 0; r < 12; r++)
1739 if (scan_info->rate[r])
1740 target->rate_len++;
1741 if (8 < target->rate_len)
1742 pr_info("%s: AP returns %d rates\n", __func__,
1743 target->rate_len);
1744 target->rate_ext_len = 0;
1745 for (r = 0; r < 16; r++)
1746 if (scan_info->ext_rate[r])
1747 target->rate_ext_len++;
1748 list_move_tail(&target->list, &wl->network_list);
1749 }
1750 memset(&data, 0, sizeof(data));
1751 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1752 NULL);
1753 out:
1754 free_page((unsigned long)buf);
1755 complete(&wl->scan_done);
1756 mutex_unlock(&wl->scan_lock);
1757 pr_debug("%s:end\n", __func__);
1758 }
1759
1760 /*
1761 * Select an appropriate bss from current scan list regarding
1762 * current settings from userspace.
1763 * The caller must hold wl->scan_lock,
1764 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1765 */
1766 static void update_best(struct gelic_wl_scan_info **best,
1767 struct gelic_wl_scan_info *candid,
1768 int *best_weight,
1769 int *weight)
1770 {
1771 if (*best_weight < ++(*weight)) {
1772 *best_weight = *weight;
1773 *best = candid;
1774 }
1775 }
1776
1777 static
1778 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1779 {
1780 struct gelic_wl_scan_info *scan_info;
1781 struct gelic_wl_scan_info *best_bss;
1782 int weight, best_weight;
1783 u16 security;
1784
1785 pr_debug("%s: <-\n", __func__);
1786
1787 best_bss = NULL;
1788 best_weight = 0;
1789
1790 list_for_each_entry(scan_info, &wl->network_list, list) {
1791 pr_debug("%s: station %p\n", __func__, scan_info);
1792
1793 if (!scan_info->valid) {
1794 pr_debug("%s: station invalid\n", __func__);
1795 continue;
1796 }
1797
1798 /* If bss specified, check it only */
1799 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1800 if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1801 wl->bssid)) {
1802 best_bss = scan_info;
1803 pr_debug("%s: bssid matched\n", __func__);
1804 break;
1805 } else {
1806 pr_debug("%s: bssid unmached\n", __func__);
1807 continue;
1808 }
1809 }
1810
1811 weight = 0;
1812
1813 /* security */
1814 security = be16_to_cpu(scan_info->hwinfo->security) &
1815 GELIC_EURUS_SCAN_SEC_MASK;
1816 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1817 if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1818 update_best(&best_bss, scan_info,
1819 &best_weight, &weight);
1820 else
1821 continue;
1822 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1823 if (security == GELIC_EURUS_SCAN_SEC_WPA)
1824 update_best(&best_bss, scan_info,
1825 &best_weight, &weight);
1826 else
1827 continue;
1828 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1829 wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1830 if (security == GELIC_EURUS_SCAN_SEC_WEP)
1831 update_best(&best_bss, scan_info,
1832 &best_weight, &weight);
1833 else
1834 continue;
1835 }
1836
1837 /* If ESSID is set, check it */
1838 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1839 if ((scan_info->essid_len == wl->essid_len) &&
1840 !strncmp(wl->essid,
1841 scan_info->hwinfo->essid,
1842 scan_info->essid_len))
1843 update_best(&best_bss, scan_info,
1844 &best_weight, &weight);
1845 else
1846 continue;
1847 }
1848 }
1849
1850 #ifdef DEBUG
1851 pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1852 if (best_bss) {
1853 pr_debug("%s:addr=%pM\n", __func__,
1854 &best_bss->hwinfo->bssid[2]);
1855 }
1856 #endif
1857 return best_bss;
1858 }
1859
1860 /*
1861 * Setup WEP configuration to the chip
1862 * The caller must hold wl->scan_lock,
1863 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1864 */
1865 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1866 {
1867 unsigned int i;
1868 struct gelic_eurus_wep_cfg *wep;
1869 struct gelic_eurus_cmd *cmd;
1870 int wep104 = 0;
1871 int have_key = 0;
1872 int ret = 0;
1873
1874 pr_debug("%s: <-\n", __func__);
1875 /* we can assume no one should uses the buffer */
1876 wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1877 if (!wep)
1878 return -ENOMEM;
1879
1880 memset(wep, 0, sizeof(*wep));
1881
1882 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1883 pr_debug("%s: WEP mode\n", __func__);
1884 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1885 if (!test_bit(i, &wl->key_enabled))
1886 continue;
1887
1888 pr_debug("%s: key#%d enabled\n", __func__, i);
1889 have_key = 1;
1890 if (wl->key_len[i] == 13)
1891 wep104 = 1;
1892 else if (wl->key_len[i] != 5) {
1893 pr_info("%s: wrong wep key[%d]=%d\n",
1894 __func__, i, wl->key_len[i]);
1895 ret = -EINVAL;
1896 goto out;
1897 }
1898 memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1899 }
1900
1901 if (!have_key) {
1902 pr_info("%s: all wep key disabled\n", __func__);
1903 ret = -EINVAL;
1904 goto out;
1905 }
1906
1907 if (wep104) {
1908 pr_debug("%s: 104bit key\n", __func__);
1909 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1910 } else {
1911 pr_debug("%s: 40bit key\n", __func__);
1912 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1913 }
1914 } else {
1915 pr_debug("%s: NO encryption\n", __func__);
1916 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1917 }
1918
1919 /* issue wep setup */
1920 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1921 wep, sizeof(*wep));
1922 if (!cmd)
1923 ret = -ENOMEM;
1924 else if (cmd->status || cmd->cmd_status)
1925 ret = -ENXIO;
1926
1927 kfree(cmd);
1928 out:
1929 free_page((unsigned long)wep);
1930 pr_debug("%s: ->\n", __func__);
1931 return ret;
1932 }
1933
1934 #ifdef DEBUG
1935 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1936 {
1937 switch (sec) {
1938 case GELIC_EURUS_WPA_SEC_NONE:
1939 return "NONE";
1940 break;
1941 case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1942 return "WPA_TKIP_TKIP";
1943 break;
1944 case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1945 return "WPA_TKIP_AES";
1946 break;
1947 case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1948 return "WPA_AES_AES";
1949 break;
1950 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1951 return "WPA2_TKIP_TKIP";
1952 break;
1953 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1954 return "WPA2_TKIP_AES";
1955 break;
1956 case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1957 return "WPA2_AES_AES";
1958 break;
1959 }
1960 return "";
1961 };
1962 #endif
1963
1964 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1965 {
1966 struct gelic_eurus_wpa_cfg *wpa;
1967 struct gelic_eurus_cmd *cmd;
1968 u16 security;
1969 int ret = 0;
1970
1971 pr_debug("%s: <-\n", __func__);
1972 /* we can assume no one should uses the buffer */
1973 wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1974 if (!wpa)
1975 return -ENOMEM;
1976
1977 memset(wpa, 0, sizeof(*wpa));
1978
1979 if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1980 pr_info("%s: PSK not configured yet\n", __func__);
1981
1982 /* copy key */
1983 memcpy(wpa->psk, wl->psk, wl->psk_len);
1984
1985 /* set security level */
1986 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1987 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1988 security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1989 } else {
1990 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1991 precise_ie())
1992 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1993 else
1994 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1995 }
1996 } else {
1997 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1998 security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1999 } else {
2000 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
2001 precise_ie())
2002 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
2003 else
2004 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
2005 }
2006 }
2007 wpa->security = cpu_to_be16(security);
2008
2009 /* PSK type */
2010 wpa->psk_type = cpu_to_be16(wl->psk_type);
2011 #ifdef DEBUG
2012 pr_debug("%s: sec=%s psktype=%s\nn", __func__,
2013 wpasecstr(wpa->security),
2014 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
2015 "BIN" : "passphrase");
2016 #if 0
2017 /*
2018 * don't enable here if you plan to submit
2019 * the debug log because this dumps your precious
2020 * passphrase/key.
2021 */
2022 pr_debug("%s: psk=%s\n",
2023 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
2024 (char *)"N/A" : (char *)wpa->psk);
2025 #endif
2026 #endif
2027 /* issue wpa setup */
2028 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
2029 wpa, sizeof(*wpa));
2030 if (!cmd)
2031 ret = -ENOMEM;
2032 else if (cmd->status || cmd->cmd_status)
2033 ret = -ENXIO;
2034 kfree(cmd);
2035 free_page((unsigned long)wpa);
2036 pr_debug("%s: --> %d\n", __func__, ret);
2037 return ret;
2038 }
2039
2040 /*
2041 * Start association. caller must hold assoc_stat_lock
2042 */
2043 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
2044 struct gelic_wl_scan_info *bss)
2045 {
2046 struct gelic_eurus_cmd *cmd;
2047 struct gelic_eurus_common_cfg *common;
2048 int ret = 0;
2049 unsigned long rc;
2050
2051 pr_debug("%s: <-\n", __func__);
2052
2053 /* do common config */
2054 common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
2055 if (!common)
2056 return -ENOMEM;
2057
2058 memset(common, 0, sizeof(*common));
2059 common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
2060 common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
2061
2062 common->scan_index = cpu_to_be16(bss->eurus_index);
2063 switch (wl->auth_method) {
2064 case GELIC_EURUS_AUTH_OPEN:
2065 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
2066 break;
2067 case GELIC_EURUS_AUTH_SHARED:
2068 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
2069 break;
2070 }
2071
2072 #ifdef DEBUG
2073 scan_list_dump(wl);
2074 #endif
2075 pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
2076 be16_to_cpu(common->scan_index),
2077 be16_to_cpu(common->bss_type),
2078 be16_to_cpu(common->auth_method));
2079
2080 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
2081 common, sizeof(*common));
2082 if (!cmd || cmd->status || cmd->cmd_status) {
2083 ret = -ENOMEM;
2084 kfree(cmd);
2085 goto out;
2086 }
2087 kfree(cmd);
2088
2089 /* WEP/WPA */
2090 switch (wl->wpa_level) {
2091 case GELIC_WL_WPA_LEVEL_NONE:
2092 /* If WEP or no security, setup WEP config */
2093 ret = gelic_wl_do_wep_setup(wl);
2094 break;
2095 case GELIC_WL_WPA_LEVEL_WPA:
2096 case GELIC_WL_WPA_LEVEL_WPA2:
2097 ret = gelic_wl_do_wpa_setup(wl);
2098 break;
2099 };
2100
2101 if (ret) {
2102 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
2103 ret);
2104 ret = -EPERM;
2105 gelic_wl_send_iwap_event(wl, NULL);
2106 goto out;
2107 }
2108
2109 /* start association */
2110 init_completion(&wl->assoc_done);
2111 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2112 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2113 NULL, 0);
2114 if (!cmd || cmd->status || cmd->cmd_status) {
2115 pr_debug("%s: assoc request failed\n", __func__);
2116 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2117 kfree(cmd);
2118 ret = -ENOMEM;
2119 gelic_wl_send_iwap_event(wl, NULL);
2120 goto out;
2121 }
2122 kfree(cmd);
2123
2124 /* wait for connected event */
2125 rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2126
2127 if (!rc) {
2128 /* timeouted. Maybe key or cyrpt mode is wrong */
2129 pr_info("%s: connect timeout \n", __func__);
2130 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2131 NULL, 0);
2132 kfree(cmd);
2133 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2134 gelic_wl_send_iwap_event(wl, NULL);
2135 ret = -ENXIO;
2136 } else {
2137 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2138 /* copy bssid */
2139 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2140
2141 /* send connect event */
2142 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2143 pr_info("%s: connected\n", __func__);
2144 }
2145 out:
2146 free_page((unsigned long)common);
2147 pr_debug("%s: ->\n", __func__);
2148 return ret;
2149 }
2150
2151 /*
2152 * connected event
2153 */
2154 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2155 u64 event)
2156 {
2157 u64 desired_event = 0;
2158
2159 switch (wl->wpa_level) {
2160 case GELIC_WL_WPA_LEVEL_NONE:
2161 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2162 break;
2163 case GELIC_WL_WPA_LEVEL_WPA:
2164 case GELIC_WL_WPA_LEVEL_WPA2:
2165 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2166 break;
2167 }
2168
2169 if (desired_event == event) {
2170 pr_debug("%s: completed \n", __func__);
2171 complete(&wl->assoc_done);
2172 netif_carrier_on(port_to_netdev(wl_port(wl)));
2173 } else
2174 pr_debug("%s: event %#llx under wpa\n",
2175 __func__, event);
2176 }
2177
2178 /*
2179 * disconnect event
2180 */
2181 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2182 u64 event)
2183 {
2184 struct gelic_eurus_cmd *cmd;
2185 int lock;
2186
2187 /*
2188 * If we fall here in the middle of association,
2189 * associate_bss() should be waiting for complation of
2190 * wl->assoc_done.
2191 * As it waits with timeout, just leave assoc_done
2192 * uncompleted, then it terminates with timeout
2193 */
2194 if (!mutex_trylock(&wl->assoc_stat_lock)) {
2195 pr_debug("%s: already locked\n", __func__);
2196 lock = 0;
2197 } else {
2198 pr_debug("%s: obtain lock\n", __func__);
2199 lock = 1;
2200 }
2201
2202 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2203 kfree(cmd);
2204
2205 /* send disconnected event to the supplicant */
2206 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2207 gelic_wl_send_iwap_event(wl, NULL);
2208
2209 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2210 netif_carrier_off(port_to_netdev(wl_port(wl)));
2211
2212 if (lock)
2213 mutex_unlock(&wl->assoc_stat_lock);
2214 }
2215 /*
2216 * event worker
2217 */
2218 #ifdef DEBUG
2219 static const char *eventstr(enum gelic_lv1_wl_event event)
2220 {
2221 static char buf[32];
2222 char *ret;
2223 if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2224 ret = "EURUS_READY";
2225 else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2226 ret = "SCAN_COMPLETED";
2227 else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2228 ret = "DEAUTH";
2229 else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2230 ret = "BEACON_LOST";
2231 else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2232 ret = "CONNECTED";
2233 else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2234 ret = "WPA_CONNECTED";
2235 else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2236 ret = "WPA_ERROR";
2237 else {
2238 sprintf(buf, "Unknown(%#x)", event);
2239 ret = buf;
2240 }
2241 return ret;
2242 }
2243 #else
2244 static const char *eventstr(enum gelic_lv1_wl_event event)
2245 {
2246 return NULL;
2247 }
2248 #endif
2249 static void gelic_wl_event_worker(struct work_struct *work)
2250 {
2251 struct gelic_wl_info *wl;
2252 struct gelic_port *port;
2253 u64 event, tmp;
2254 int status;
2255
2256 pr_debug("%s:start\n", __func__);
2257 wl = container_of(work, struct gelic_wl_info, event_work.work);
2258 port = wl_port(wl);
2259 while (1) {
2260 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2261 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2262 &event, &tmp);
2263 if (status) {
2264 if (status != LV1_NO_ENTRY)
2265 pr_debug("%s:wlan event failed %d\n",
2266 __func__, status);
2267 /* got all events */
2268 pr_debug("%s:end\n", __func__);
2269 return;
2270 }
2271 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2272 switch (event) {
2273 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2274 gelic_wl_scan_complete_event(wl);
2275 break;
2276 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2277 case GELIC_LV1_WL_EVENT_DEAUTH:
2278 gelic_wl_disconnect_event(wl, event);
2279 break;
2280 case GELIC_LV1_WL_EVENT_CONNECTED:
2281 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2282 gelic_wl_connected_event(wl, event);
2283 break;
2284 default:
2285 break;
2286 }
2287 } /* while */
2288 }
2289 /*
2290 * association worker
2291 */
2292 static void gelic_wl_assoc_worker(struct work_struct *work)
2293 {
2294 struct gelic_wl_info *wl;
2295
2296 struct gelic_wl_scan_info *best_bss;
2297 int ret;
2298 unsigned long irqflag;
2299 u8 *essid;
2300 size_t essid_len;
2301
2302 wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2303
2304 mutex_lock(&wl->assoc_stat_lock);
2305
2306 if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2307 goto out;
2308
2309 spin_lock_irqsave(&wl->lock, irqflag);
2310 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2311 pr_debug("%s: assoc ESSID configured %s\n", __func__,
2312 wl->essid);
2313 essid = wl->essid;
2314 essid_len = wl->essid_len;
2315 } else {
2316 essid = NULL;
2317 essid_len = 0;
2318 }
2319 spin_unlock_irqrestore(&wl->lock, irqflag);
2320
2321 ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2322 if (ret == -ERESTARTSYS) {
2323 pr_debug("%s: scan start failed association\n", __func__);
2324 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2325 goto out;
2326 } else if (ret) {
2327 pr_info("%s: scan prerequisite failed\n", __func__);
2328 goto out;
2329 }
2330
2331 /*
2332 * Wait for bss scan completion
2333 * If we have scan list already, gelic_wl_start_scan()
2334 * returns OK and raises the complete. Thus,
2335 * it's ok to wait unconditionally here
2336 */
2337 wait_for_completion(&wl->scan_done);
2338
2339 pr_debug("%s: scan done\n", __func__);
2340 mutex_lock(&wl->scan_lock);
2341 if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2342 gelic_wl_send_iwap_event(wl, NULL);
2343 pr_info("%s: no scan list. association failed\n", __func__);
2344 goto scan_lock_out;
2345 }
2346
2347 /* find best matching bss */
2348 best_bss = gelic_wl_find_best_bss(wl);
2349 if (!best_bss) {
2350 gelic_wl_send_iwap_event(wl, NULL);
2351 pr_info("%s: no bss matched. association failed\n", __func__);
2352 goto scan_lock_out;
2353 }
2354
2355 /* ok, do association */
2356 ret = gelic_wl_associate_bss(wl, best_bss);
2357 if (ret)
2358 pr_info("%s: association failed %d\n", __func__, ret);
2359 scan_lock_out:
2360 mutex_unlock(&wl->scan_lock);
2361 out:
2362 mutex_unlock(&wl->assoc_stat_lock);
2363 }
2364 /*
2365 * Interrupt handler
2366 * Called from the ethernet interrupt handler
2367 * Processes wireless specific virtual interrupts only
2368 */
2369 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2370 {
2371 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2372
2373 if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2374 pr_debug("%s:cmd complete\n", __func__);
2375 complete(&wl->cmd_done_intr);
2376 }
2377
2378 if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2379 pr_debug("%s:event received\n", __func__);
2380 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2381 }
2382 }
2383
2384 /*
2385 * driver helpers
2386 */
2387 #define IW_IOCTL(n) [(n) - SIOCSIWCOMMIT]
2388 static const iw_handler gelic_wl_wext_handler[] =
2389 {
2390 IW_IOCTL(SIOCGIWNAME) = gelic_wl_get_name,
2391 IW_IOCTL(SIOCGIWRANGE) = gelic_wl_get_range,
2392 IW_IOCTL(SIOCSIWSCAN) = gelic_wl_set_scan,
2393 IW_IOCTL(SIOCGIWSCAN) = gelic_wl_get_scan,
2394 IW_IOCTL(SIOCSIWAUTH) = gelic_wl_set_auth,
2395 IW_IOCTL(SIOCGIWAUTH) = gelic_wl_get_auth,
2396 IW_IOCTL(SIOCSIWESSID) = gelic_wl_set_essid,
2397 IW_IOCTL(SIOCGIWESSID) = gelic_wl_get_essid,
2398 IW_IOCTL(SIOCSIWENCODE) = gelic_wl_set_encode,
2399 IW_IOCTL(SIOCGIWENCODE) = gelic_wl_get_encode,
2400 IW_IOCTL(SIOCSIWAP) = gelic_wl_set_ap,
2401 IW_IOCTL(SIOCGIWAP) = gelic_wl_get_ap,
2402 IW_IOCTL(SIOCSIWENCODEEXT) = gelic_wl_set_encodeext,
2403 IW_IOCTL(SIOCGIWENCODEEXT) = gelic_wl_get_encodeext,
2404 IW_IOCTL(SIOCSIWMODE) = gelic_wl_set_mode,
2405 IW_IOCTL(SIOCGIWMODE) = gelic_wl_get_mode,
2406 IW_IOCTL(SIOCGIWNICKN) = gelic_wl_get_nick,
2407 };
2408
2409 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
2410 static struct iw_priv_args gelic_wl_private_args[] =
2411 {
2412 {
2413 .cmd = GELIC_WL_PRIV_SET_PSK,
2414 .set_args = IW_PRIV_TYPE_CHAR |
2415 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2416 .name = "set_psk"
2417 },
2418 {
2419 .cmd = GELIC_WL_PRIV_GET_PSK,
2420 .get_args = IW_PRIV_TYPE_CHAR |
2421 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2422 .name = "get_psk"
2423 }
2424 };
2425
2426 static const iw_handler gelic_wl_private_handler[] =
2427 {
2428 gelic_wl_priv_set_psk,
2429 gelic_wl_priv_get_psk,
2430 };
2431 #endif
2432
2433 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2434 .num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2435 .standard = gelic_wl_wext_handler,
2436 .get_wireless_stats = gelic_wl_get_wireless_stats,
2437 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
2438 .num_private = ARRAY_SIZE(gelic_wl_private_handler),
2439 .num_private_args = ARRAY_SIZE(gelic_wl_private_args),
2440 .private = gelic_wl_private_handler,
2441 .private_args = gelic_wl_private_args,
2442 #endif
2443 };
2444
2445 static struct net_device * __devinit gelic_wl_alloc(struct gelic_card *card)
2446 {
2447 struct net_device *netdev;
2448 struct gelic_port *port;
2449 struct gelic_wl_info *wl;
2450 unsigned int i;
2451
2452 pr_debug("%s:start\n", __func__);
2453 netdev = alloc_etherdev(sizeof(struct gelic_port) +
2454 sizeof(struct gelic_wl_info));
2455 pr_debug("%s: netdev =%p card=%p \np", __func__, netdev, card);
2456 if (!netdev)
2457 return NULL;
2458
2459 strcpy(netdev->name, "wlan%d");
2460
2461 port = netdev_priv(netdev);
2462 port->netdev = netdev;
2463 port->card = card;
2464 port->type = GELIC_PORT_WIRELESS;
2465
2466 wl = port_wl(port);
2467 pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2468
2469 /* allocate scan list */
2470 wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2471 GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2472
2473 if (!wl->networks)
2474 goto fail_bss;
2475
2476 wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2477 if (!wl->eurus_cmd_queue)
2478 goto fail_cmd_workqueue;
2479
2480 wl->event_queue = create_singlethread_workqueue("gelic_event");
2481 if (!wl->event_queue)
2482 goto fail_event_workqueue;
2483
2484 INIT_LIST_HEAD(&wl->network_free_list);
2485 INIT_LIST_HEAD(&wl->network_list);
2486 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2487 list_add_tail(&wl->networks[i].list,
2488 &wl->network_free_list);
2489 init_completion(&wl->cmd_done_intr);
2490
2491 INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2492 INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2493 mutex_init(&wl->scan_lock);
2494 mutex_init(&wl->assoc_stat_lock);
2495
2496 init_completion(&wl->scan_done);
2497 /* for the case that no scan request is issued and stop() is called */
2498 complete(&wl->scan_done);
2499
2500 spin_lock_init(&wl->lock);
2501
2502 wl->scan_age = 5*HZ; /* FIXME */
2503
2504 /* buffer for receiving scanned list etc */
2505 BUILD_BUG_ON(PAGE_SIZE <
2506 sizeof(struct gelic_eurus_scan_info) *
2507 GELIC_EURUS_MAX_SCAN);
2508 pr_debug("%s:end\n", __func__);
2509 return netdev;
2510
2511 fail_event_workqueue:
2512 destroy_workqueue(wl->eurus_cmd_queue);
2513 fail_cmd_workqueue:
2514 kfree(wl->networks);
2515 fail_bss:
2516 free_netdev(netdev);
2517 pr_debug("%s:end error\n", __func__);
2518 return NULL;
2519
2520 }
2521
2522 static void gelic_wl_free(struct gelic_wl_info *wl)
2523 {
2524 struct gelic_wl_scan_info *scan_info;
2525 unsigned int i;
2526
2527 pr_debug("%s: <-\n", __func__);
2528
2529 pr_debug("%s: destroy queues\n", __func__);
2530 destroy_workqueue(wl->eurus_cmd_queue);
2531 destroy_workqueue(wl->event_queue);
2532
2533 scan_info = wl->networks;
2534 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2535 kfree(scan_info->hwinfo);
2536 kfree(wl->networks);
2537
2538 free_netdev(port_to_netdev(wl_port(wl)));
2539
2540 pr_debug("%s: ->\n", __func__);
2541 }
2542
2543 static int gelic_wl_try_associate(struct net_device *netdev)
2544 {
2545 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2546 int ret = -1;
2547 unsigned int i;
2548
2549 pr_debug("%s: <-\n", __func__);
2550
2551 /* check constraits for start association */
2552 /* for no access restriction AP */
2553 if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2554 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2555 &wl->stat))
2556 goto do_associate;
2557 else {
2558 pr_debug("%s: no wep, not configured\n", __func__);
2559 return ret;
2560 }
2561 }
2562
2563 /* for WEP, one of four keys should be set */
2564 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2565 /* one of keys set */
2566 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2567 if (test_bit(i, &wl->key_enabled))
2568 goto do_associate;
2569 }
2570 pr_debug("%s: WEP, but no key specified\n", __func__);
2571 return ret;
2572 }
2573
2574 /* for WPA[2], psk should be set */
2575 if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2576 (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2577 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2578 &wl->stat))
2579 goto do_associate;
2580 else {
2581 pr_debug("%s: AES/TKIP, but PSK not configured\n",
2582 __func__);
2583 return ret;
2584 }
2585 }
2586
2587 do_associate:
2588 ret = schedule_delayed_work(&wl->assoc_work, 0);
2589 pr_debug("%s: start association work %d\n", __func__, ret);
2590 return ret;
2591 }
2592
2593 /*
2594 * netdev handlers
2595 */
2596 static int gelic_wl_open(struct net_device *netdev)
2597 {
2598 struct gelic_card *card = netdev_card(netdev);
2599
2600 pr_debug("%s:->%p\n", __func__, netdev);
2601
2602 gelic_card_up(card);
2603
2604 /* try to associate */
2605 gelic_wl_try_associate(netdev);
2606
2607 netif_start_queue(netdev);
2608
2609 pr_debug("%s:<-\n", __func__);
2610 return 0;
2611 }
2612
2613 /*
2614 * reset state machine
2615 */
2616 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2617 {
2618 struct gelic_wl_scan_info *target;
2619 struct gelic_wl_scan_info *tmp;
2620
2621 /* empty scan list */
2622 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2623 list_move_tail(&target->list, &wl->network_free_list);
2624 }
2625 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2626
2627 /* clear configuration */
2628 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2629 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2630 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2631 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2632
2633 wl->key_enabled = 0;
2634 wl->current_key = 0;
2635
2636 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2637 wl->psk_len = 0;
2638
2639 wl->essid_len = 0;
2640 memset(wl->essid, 0, sizeof(wl->essid));
2641 memset(wl->bssid, 0, sizeof(wl->bssid));
2642 memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2643
2644 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2645
2646 memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2647 /* all status bit clear */
2648 wl->stat = 0;
2649 return 0;
2650 }
2651
2652 /*
2653 * Tell eurus to terminate association
2654 */
2655 static void gelic_wl_disconnect(struct net_device *netdev)
2656 {
2657 struct gelic_port *port = netdev_priv(netdev);
2658 struct gelic_wl_info *wl = port_wl(port);
2659 struct gelic_eurus_cmd *cmd;
2660
2661 /*
2662 * If scann process is running on chip,
2663 * further requests will be rejected
2664 */
2665 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2666 wait_for_completion_timeout(&wl->scan_done, HZ);
2667
2668 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2669 kfree(cmd);
2670 gelic_wl_send_iwap_event(wl, NULL);
2671 };
2672
2673 static int gelic_wl_stop(struct net_device *netdev)
2674 {
2675 struct gelic_port *port = netdev_priv(netdev);
2676 struct gelic_wl_info *wl = port_wl(port);
2677 struct gelic_card *card = netdev_card(netdev);
2678
2679 pr_debug("%s:<-\n", __func__);
2680
2681 /*
2682 * Cancel pending association work.
2683 * event work can run after netdev down
2684 */
2685 cancel_delayed_work(&wl->assoc_work);
2686
2687 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2688 gelic_wl_disconnect(netdev);
2689
2690 /* reset our state machine */
2691 gelic_wl_reset_state(wl);
2692
2693 netif_stop_queue(netdev);
2694
2695 gelic_card_down(card);
2696
2697 pr_debug("%s:->\n", __func__);
2698 return 0;
2699 }
2700
2701 /* -- */
2702
2703 static const struct net_device_ops gelic_wl_netdevice_ops = {
2704 .ndo_open = gelic_wl_open,
2705 .ndo_stop = gelic_wl_stop,
2706 .ndo_start_xmit = gelic_net_xmit,
2707 .ndo_set_multicast_list = gelic_net_set_multi,
2708 .ndo_change_mtu = gelic_net_change_mtu,
2709 .ndo_tx_timeout = gelic_net_tx_timeout,
2710 .ndo_set_mac_address = eth_mac_addr,
2711 .ndo_validate_addr = eth_validate_addr,
2712 #ifdef CONFIG_NET_POLL_CONTROLLER
2713 .ndo_poll_controller = gelic_net_poll_controller,
2714 #endif
2715 };
2716
2717 static const struct ethtool_ops gelic_wl_ethtool_ops = {
2718 .get_drvinfo = gelic_net_get_drvinfo,
2719 .get_link = gelic_wl_get_link,
2720 .get_tx_csum = ethtool_op_get_tx_csum,
2721 .set_tx_csum = ethtool_op_set_tx_csum,
2722 .get_rx_csum = gelic_net_get_rx_csum,
2723 .set_rx_csum = gelic_net_set_rx_csum,
2724 };
2725
2726 static void __devinit gelic_wl_setup_netdev_ops(struct net_device *netdev)
2727 {
2728 struct gelic_wl_info *wl;
2729 wl = port_wl(netdev_priv(netdev));
2730 BUG_ON(!wl);
2731 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2732
2733 netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2734 netdev->netdev_ops = &gelic_wl_netdevice_ops;
2735 netdev->wireless_data = &wl->wireless_data;
2736 netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2737 }
2738
2739 /*
2740 * driver probe/remove
2741 */
2742 int __devinit gelic_wl_driver_probe(struct gelic_card *card)
2743 {
2744 int ret;
2745 struct net_device *netdev;
2746
2747 pr_debug("%s:start\n", __func__);
2748
2749 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2750 return 0;
2751 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2752 return 0;
2753
2754 /* alloc netdevice for wireless */
2755 netdev = gelic_wl_alloc(card);
2756 if (!netdev)
2757 return -ENOMEM;
2758
2759 /* setup net_device structure */
2760 SET_NETDEV_DEV(netdev, &card->dev->core);
2761 gelic_wl_setup_netdev_ops(netdev);
2762
2763 /* setup some of net_device and register it */
2764 ret = gelic_net_setup_netdev(netdev, card);
2765 if (ret)
2766 goto fail_setup;
2767 card->netdev[GELIC_PORT_WIRELESS] = netdev;
2768
2769 /* add enable wireless interrupt */
2770 card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2771 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2772 /* to allow wireless commands while both interfaces are down */
2773 gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2774 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2775 pr_debug("%s:end\n", __func__);
2776 return 0;
2777
2778 fail_setup:
2779 gelic_wl_free(port_wl(netdev_port(netdev)));
2780
2781 return ret;
2782 }
2783
2784 int gelic_wl_driver_remove(struct gelic_card *card)
2785 {
2786 struct gelic_wl_info *wl;
2787 struct net_device *netdev;
2788
2789 pr_debug("%s:start\n", __func__);
2790
2791 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2792 return 0;
2793 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2794 return 0;
2795
2796 netdev = card->netdev[GELIC_PORT_WIRELESS];
2797 wl = port_wl(netdev_priv(netdev));
2798
2799 /* if the interface was not up, but associated */
2800 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2801 gelic_wl_disconnect(netdev);
2802
2803 complete(&wl->cmd_done_intr);
2804
2805 /* cancel all work queue */
2806 cancel_delayed_work(&wl->assoc_work);
2807 cancel_delayed_work(&wl->event_work);
2808 flush_workqueue(wl->eurus_cmd_queue);
2809 flush_workqueue(wl->event_queue);
2810
2811 unregister_netdev(netdev);
2812
2813 /* disable wireless interrupt */
2814 pr_debug("%s: disable intr\n", __func__);
2815 card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2816 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2817 /* free bss list, netdev*/
2818 gelic_wl_free(wl);
2819 pr_debug("%s:end\n", __func__);
2820 return 0;
2821 }
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