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bna: CheckPatch Cleanup
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / ps3_gelic_wireless.c
blob2e62938c0f824a39afc61b6634129f0367a03e03
1 /*
2 * PS3 gelic network driver.
3 *
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * Copyright 2007 Sony Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 #undef DEBUG
21
22 #include <linux/kernel.h>
23 #include <linux/module.h>
24 #include <linux/slab.h>
25
26 #include <linux/etherdevice.h>
27 #include <linux/ethtool.h>
28 #include <linux/if_vlan.h>
29
30 #include <linux/in.h>
31 #include <linux/ip.h>
32 #include <linux/tcp.h>
33 #include <linux/wireless.h>
34 #include <linux/ieee80211.h>
35 #include <linux/if_arp.h>
36 #include <linux/ctype.h>
37 #include <linux/string.h>
38 #include <net/iw_handler.h>
39
40 #include <linux/dma-mapping.h>
41 #include <net/checksum.h>
42 #include <asm/firmware.h>
43 #include <asm/ps3.h>
44 #include <asm/lv1call.h>
45
46 #include "ps3_gelic_net.h"
47 #include "ps3_gelic_wireless.h"
48
49
50 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
51 u8 *essid, size_t essid_len);
52 static int gelic_wl_try_associate(struct net_device *netdev);
53
54 /*
55 * tables
56 */
57
58 /* 802.11b/g channel to freq in MHz */
59 static const int channel_freq[] = {
60 2412, 2417, 2422, 2427, 2432,
61 2437, 2442, 2447, 2452, 2457,
62 2462, 2467, 2472, 2484
63 };
64 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
65
66 /* in bps */
67 static const int bitrate_list[] = {
68 1000000,
69 2000000,
70 5500000,
71 11000000,
72 6000000,
73 9000000,
74 12000000,
75 18000000,
76 24000000,
77 36000000,
78 48000000,
79 54000000
80 };
81 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
82
83 /*
84 * wpa2 support requires the hypervisor version 2.0 or later
85 */
86 static inline int wpa2_capable(void)
87 {
88 return 0 <= ps3_compare_firmware_version(2, 0, 0);
89 }
90
91 static inline int precise_ie(void)
92 {
93 return 0 <= ps3_compare_firmware_version(2, 2, 0);
94 }
95 /*
96 * post_eurus_cmd helpers
97 */
98 struct eurus_cmd_arg_info {
99 int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
100 int post_arg; /* command requires arg1, arg2 at GET_RESULT */
101 };
102
103 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
104 [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
105 [GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
106 [GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
107 [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
108 [GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
109 [GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
110 [GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
111 [GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1},
112 [GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
113 };
114
115 #ifdef DEBUG
116 static const char *cmdstr(enum gelic_eurus_command ix)
117 {
118 switch (ix) {
119 case GELIC_EURUS_CMD_ASSOC:
120 return "ASSOC";
121 case GELIC_EURUS_CMD_DISASSOC:
122 return "DISASSOC";
123 case GELIC_EURUS_CMD_START_SCAN:
124 return "SCAN";
125 case GELIC_EURUS_CMD_GET_SCAN:
126 return "GET SCAN";
127 case GELIC_EURUS_CMD_SET_COMMON_CFG:
128 return "SET_COMMON_CFG";
129 case GELIC_EURUS_CMD_GET_COMMON_CFG:
130 return "GET_COMMON_CFG";
131 case GELIC_EURUS_CMD_SET_WEP_CFG:
132 return "SET_WEP_CFG";
133 case GELIC_EURUS_CMD_GET_WEP_CFG:
134 return "GET_WEP_CFG";
135 case GELIC_EURUS_CMD_SET_WPA_CFG:
136 return "SET_WPA_CFG";
137 case GELIC_EURUS_CMD_GET_WPA_CFG:
138 return "GET_WPA_CFG";
139 case GELIC_EURUS_CMD_GET_RSSI_CFG:
140 return "GET_RSSI";
141 default:
142 break;
143 }
144 return "";
145 };
146 #else
147 static inline const char *cmdstr(enum gelic_eurus_command ix)
148 {
149 return "";
150 }
151 #endif
152
153 /* synchronously do eurus commands */
154 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
155 {
156 struct gelic_eurus_cmd *cmd;
157 struct gelic_card *card;
158 struct gelic_wl_info *wl;
159
160 u64 arg1, arg2;
161
162 pr_debug("%s: <-\n", __func__);
163 cmd = container_of(work, struct gelic_eurus_cmd, work);
164 BUG_ON(cmd_info[cmd->cmd].pre_arg &&
165 cmd_info[cmd->cmd].post_arg);
166 wl = cmd->wl;
167 card = port_to_card(wl_port(wl));
168
169 if (cmd_info[cmd->cmd].pre_arg) {
170 arg1 = (cmd->buffer) ?
171 ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
172 0;
173 arg2 = cmd->buf_size;
174 } else {
175 arg1 = 0;
176 arg2 = 0;
177 }
178 init_completion(&wl->cmd_done_intr);
179 pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
180 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
181 GELIC_LV1_POST_WLAN_CMD,
182 cmd->cmd, arg1, arg2,
183 &cmd->tag, &cmd->size);
184 if (cmd->status) {
185 complete(&cmd->done);
186 pr_info("%s: cmd issue failed\n", __func__);
187 return;
188 }
189
190 wait_for_completion(&wl->cmd_done_intr);
191
192 if (cmd_info[cmd->cmd].post_arg) {
193 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
194 arg2 = cmd->buf_size;
195 } else {
196 arg1 = 0;
197 arg2 = 0;
198 }
199
200 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
201 GELIC_LV1_GET_WLAN_CMD_RESULT,
202 cmd->tag, arg1, arg2,
203 &cmd->cmd_status, &cmd->size);
204 #ifdef DEBUG
205 if (cmd->status || cmd->cmd_status) {
206 pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
207 cmd->tag, arg1, arg2);
208 pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
209 __func__, cmd->status, cmd->cmd_status, cmd->size);
210 }
211 #endif
212 complete(&cmd->done);
213 pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
214 }
215
216 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
217 unsigned int eurus_cmd,
218 void *buffer,
219 unsigned int buf_size)
220 {
221 struct gelic_eurus_cmd *cmd;
222
223 /* allocate cmd */
224 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
225 if (!cmd)
226 return NULL;
227
228 /* initialize members */
229 cmd->cmd = eurus_cmd;
230 cmd->buffer = buffer;
231 cmd->buf_size = buf_size;
232 cmd->wl = wl;
233 INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
234 init_completion(&cmd->done);
235 queue_work(wl->eurus_cmd_queue, &cmd->work);
236
237 /* wait for command completion */
238 wait_for_completion(&cmd->done);
239
240 return cmd;
241 }
242
243 static u32 gelic_wl_get_link(struct net_device *netdev)
244 {
245 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
246 u32 ret;
247
248 pr_debug("%s: <-\n", __func__);
249 mutex_lock(&wl->assoc_stat_lock);
250 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
251 ret = 1;
252 else
253 ret = 0;
254 mutex_unlock(&wl->assoc_stat_lock);
255 pr_debug("%s: ->\n", __func__);
256 return ret;
257 }
258
259 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
260 {
261 union iwreq_data data;
262
263 memset(&data, 0, sizeof(data));
264 if (bssid)
265 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
266 data.ap_addr.sa_family = ARPHRD_ETHER;
267 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
268 &data, NULL);
269 }
270
271 /*
272 * wireless extension handlers and helpers
273 */
274
275 /* SIOGIWNAME */
276 static int gelic_wl_get_name(struct net_device *dev,
277 struct iw_request_info *info,
278 union iwreq_data *iwreq, char *extra)
279 {
280 strcpy(iwreq->name, "IEEE 802.11bg");
281 return 0;
282 }
283
284 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
285 {
286 struct gelic_card *card = port_to_card(wl_port(wl));
287 u64 ch_info_raw, tmp;
288 int status;
289
290 if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
291 status = lv1_net_control(bus_id(card), dev_id(card),
292 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
293 &ch_info_raw,
294 &tmp);
295 /* some fw versions may return error */
296 if (status) {
297 if (status != LV1_NO_ENTRY)
298 pr_info("%s: available ch unknown\n", __func__);
299 wl->ch_info = 0x07ff;/* 11 ch */
300 } else
301 /* 16 bits of MSB has available channels */
302 wl->ch_info = ch_info_raw >> 48;
303 }
304 }
305
306 /* SIOGIWRANGE */
307 static int gelic_wl_get_range(struct net_device *netdev,
308 struct iw_request_info *info,
309 union iwreq_data *iwreq, char *extra)
310 {
311 struct iw_point *point = &iwreq->data;
312 struct iw_range *range = (struct iw_range *)extra;
313 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
314 unsigned int i, chs;
315
316 pr_debug("%s: <-\n", __func__);
317 point->length = sizeof(struct iw_range);
318 memset(range, 0, sizeof(struct iw_range));
319
320 range->we_version_compiled = WIRELESS_EXT;
321 range->we_version_source = 22;
322
323 /* available channels and frequencies */
324 gelic_wl_get_ch_info(wl);
325
326 for (i = 0, chs = 0;
327 i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
328 if (wl->ch_info & (1 << i)) {
329 range->freq[chs].i = i + 1;
330 range->freq[chs].m = channel_freq[i];
331 range->freq[chs].e = 6;
332 chs++;
333 }
334 range->num_frequency = chs;
335 range->old_num_frequency = chs;
336 range->num_channels = chs;
337 range->old_num_channels = chs;
338
339 /* bitrates */
340 for (i = 0; i < NUM_BITRATES; i++)
341 range->bitrate[i] = bitrate_list[i];
342 range->num_bitrates = i;
343
344 /* signal levels */
345 range->max_qual.qual = 100; /* relative value */
346 range->max_qual.level = 100;
347 range->avg_qual.qual = 50;
348 range->avg_qual.level = 50;
349 range->sensitivity = 0;
350
351 /* Event capability */
352 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
353 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
354 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
355
356 /* encryption capability */
357 range->enc_capa = IW_ENC_CAPA_WPA |
358 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
359 IW_ENC_CAPA_4WAY_HANDSHAKE;
360 if (wpa2_capable())
361 range->enc_capa |= IW_ENC_CAPA_WPA2;
362 range->encoding_size[0] = 5; /* 40bit WEP */
363 range->encoding_size[1] = 13; /* 104bit WEP */
364 range->encoding_size[2] = 32; /* WPA-PSK */
365 range->num_encoding_sizes = 3;
366 range->max_encoding_tokens = GELIC_WEP_KEYS;
367
368 /* scan capability */
369 range->scan_capa = IW_SCAN_CAPA_ESSID;
370
371 pr_debug("%s: ->\n", __func__);
372 return 0;
373
374 }
375
376 /* SIOC{G,S}IWSCAN */
377 static int gelic_wl_set_scan(struct net_device *netdev,
378 struct iw_request_info *info,
379 union iwreq_data *wrqu, char *extra)
380 {
381 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
382 struct iw_scan_req *req;
383 u8 *essid = NULL;
384 size_t essid_len = 0;
385
386 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
387 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
388 req = (struct iw_scan_req*)extra;
389 essid = req->essid;
390 essid_len = req->essid_len;
391 pr_debug("%s: ESSID scan =%s\n", __func__, essid);
392 }
393 return gelic_wl_start_scan(wl, 1, essid, essid_len);
394 }
395
396 #define OUI_LEN 3
397 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
398 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
399
400 /*
401 * synthesize WPA/RSN IE data
402 * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
403 * for the format
404 */
405 static size_t gelic_wl_synthesize_ie(u8 *buf,
406 struct gelic_eurus_scan_info *scan)
407 {
408
409 const u8 *oui_header;
410 u8 *start = buf;
411 int rsn;
412 int ccmp;
413
414 pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
415 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
416 case GELIC_EURUS_SCAN_SEC_WPA:
417 rsn = 0;
418 break;
419 case GELIC_EURUS_SCAN_SEC_WPA2:
420 rsn = 1;
421 break;
422 default:
423 /* WEP or none. No IE returned */
424 return 0;
425 }
426
427 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
428 case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
429 ccmp = 0;
430 break;
431 case GELIC_EURUS_SCAN_SEC_WPA_AES:
432 ccmp = 1;
433 break;
434 default:
435 if (rsn) {
436 ccmp = 1;
437 pr_info("%s: no cipher info. defaulted to CCMP\n",
438 __func__);
439 } else {
440 ccmp = 0;
441 pr_info("%s: no cipher info. defaulted to TKIP\n",
442 __func__);
443 }
444 }
445
446 if (rsn)
447 oui_header = rsn_oui;
448 else
449 oui_header = wpa_oui;
450
451 /* element id */
452 if (rsn)
453 *buf++ = WLAN_EID_RSN;
454 else
455 *buf++ = WLAN_EID_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 information 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 /* SIOCGIWNICKN */
1393 static int gelic_wl_get_nick(struct net_device *net_dev,
1394 struct iw_request_info *info,
1395 union iwreq_data *data, char *extra)
1396 {
1397 strcpy(extra, "gelic_wl");
1398 data->data.length = strlen(extra);
1399 data->data.flags = 1;
1400 return 0;
1401 }
1402
1403
1404 /* --- */
1405
1406 static struct iw_statistics *gelic_wl_get_wireless_stats(
1407 struct net_device *netdev)
1408 {
1409
1410 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1411 struct gelic_eurus_cmd *cmd;
1412 struct iw_statistics *is;
1413 struct gelic_eurus_rssi_info *rssi;
1414 void *buf;
1415
1416 pr_debug("%s: <-\n", __func__);
1417
1418 buf = (void *)__get_free_page(GFP_KERNEL);
1419 if (!buf)
1420 return NULL;
1421
1422 is = &wl->iwstat;
1423 memset(is, 0, sizeof(*is));
1424 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1425 buf, sizeof(*rssi));
1426 if (cmd && !cmd->status && !cmd->cmd_status) {
1427 rssi = buf;
1428 is->qual.level = be16_to_cpu(rssi->rssi);
1429 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1430 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1431 } else
1432 /* not associated */
1433 is->qual.updated = IW_QUAL_ALL_INVALID;
1434
1435 kfree(cmd);
1436 free_page((unsigned long)buf);
1437 pr_debug("%s: ->\n", __func__);
1438 return is;
1439 }
1440
1441 /*
1442 * scanning helpers
1443 */
1444 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1445 u8 *essid, size_t essid_len)
1446 {
1447 struct gelic_eurus_cmd *cmd;
1448 int ret = 0;
1449 void *buf = NULL;
1450 size_t len;
1451
1452 pr_debug("%s: <- always=%d\n", __func__, always_scan);
1453 if (mutex_lock_interruptible(&wl->scan_lock))
1454 return -ERESTARTSYS;
1455
1456 /*
1457 * If already a scan in progress, do not trigger more
1458 */
1459 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1460 pr_debug("%s: scanning now\n", __func__);
1461 goto out;
1462 }
1463
1464 init_completion(&wl->scan_done);
1465 /*
1466 * If we have already a bss list, don't try to get new
1467 * unless we are doing an ESSID scan
1468 */
1469 if ((!essid_len && !always_scan)
1470 && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1471 pr_debug("%s: already has the list\n", __func__);
1472 complete(&wl->scan_done);
1473 goto out;
1474 }
1475
1476 /* ESSID scan ? */
1477 if (essid_len && essid) {
1478 buf = (void *)__get_free_page(GFP_KERNEL);
1479 if (!buf) {
1480 ret = -ENOMEM;
1481 goto out;
1482 }
1483 len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1484 memset(buf, 0, len);
1485 memcpy(buf, essid, essid_len);
1486 pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1487 } else
1488 len = 0;
1489
1490 /*
1491 * issue start scan request
1492 */
1493 wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1494 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1495 buf, len);
1496 if (!cmd || cmd->status || cmd->cmd_status) {
1497 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1498 complete(&wl->scan_done);
1499 ret = -ENOMEM;
1500 goto out;
1501 }
1502 kfree(cmd);
1503 out:
1504 free_page((unsigned long)buf);
1505 mutex_unlock(&wl->scan_lock);
1506 pr_debug("%s: ->\n", __func__);
1507 return ret;
1508 }
1509
1510 /*
1511 * retrieve scan result from the chip (hypervisor)
1512 * this function is invoked by schedule work.
1513 */
1514 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1515 {
1516 struct gelic_eurus_cmd *cmd = NULL;
1517 struct gelic_wl_scan_info *target, *tmp;
1518 struct gelic_wl_scan_info *oldest = NULL;
1519 struct gelic_eurus_scan_info *scan_info;
1520 unsigned int scan_info_size;
1521 union iwreq_data data;
1522 unsigned long this_time = jiffies;
1523 unsigned int data_len, i, found, r;
1524 void *buf;
1525
1526 pr_debug("%s:start\n", __func__);
1527 mutex_lock(&wl->scan_lock);
1528
1529 buf = (void *)__get_free_page(GFP_KERNEL);
1530 if (!buf) {
1531 pr_info("%s: scan buffer alloc failed\n", __func__);
1532 goto out;
1533 }
1534
1535 if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1536 /*
1537 * stop() may be called while scanning, ignore result
1538 */
1539 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1540 __func__, wl->scan_stat);
1541 goto out;
1542 }
1543
1544 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1545 buf, PAGE_SIZE);
1546 if (!cmd || cmd->status || cmd->cmd_status) {
1547 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1548 pr_info("%s:cmd failed\n", __func__);
1549 kfree(cmd);
1550 goto out;
1551 }
1552 data_len = cmd->size;
1553 pr_debug("%s: data_len = %d\n", __func__, data_len);
1554 kfree(cmd);
1555
1556 /* OK, bss list retrieved */
1557 wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1558
1559 /* mark all entries are old */
1560 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1561 target->valid = 0;
1562 /* expire too old entries */
1563 if (time_before(target->last_scanned + wl->scan_age,
1564 this_time)) {
1565 kfree(target->hwinfo);
1566 target->hwinfo = NULL;
1567 list_move_tail(&target->list, &wl->network_free_list);
1568 }
1569 }
1570
1571 /* put them in the network_list */
1572 for (i = 0, scan_info_size = 0, scan_info = buf;
1573 scan_info_size < data_len;
1574 i++, scan_info_size += be16_to_cpu(scan_info->size),
1575 scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1576 pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1577 be16_to_cpu(scan_info->size),
1578 &scan_info->bssid[2], scan_info);
1579
1580 /*
1581 * The wireless firmware may return invalid channel 0 and/or
1582 * invalid rate if the AP emits zero length SSID ie. As this
1583 * scan information is useless, ignore it
1584 */
1585 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1586 pr_debug("%s: invalid scan info\n", __func__);
1587 continue;
1588 }
1589
1590 found = 0;
1591 oldest = NULL;
1592 list_for_each_entry(target, &wl->network_list, list) {
1593 if (!compare_ether_addr(&target->hwinfo->bssid[2],
1594 &scan_info->bssid[2])) {
1595 found = 1;
1596 pr_debug("%s: same BBS found scanned list\n",
1597 __func__);
1598 break;
1599 }
1600 if (!oldest ||
1601 (target->last_scanned < oldest->last_scanned))
1602 oldest = target;
1603 }
1604
1605 if (!found) {
1606 /* not found in the list */
1607 if (list_empty(&wl->network_free_list)) {
1608 /* expire oldest */
1609 target = oldest;
1610 } else {
1611 target = list_entry(wl->network_free_list.next,
1612 struct gelic_wl_scan_info,
1613 list);
1614 }
1615 }
1616
1617 /* update the item */
1618 target->last_scanned = this_time;
1619 target->valid = 1;
1620 target->eurus_index = i;
1621 kfree(target->hwinfo);
1622 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1623 GFP_KERNEL);
1624 if (!target->hwinfo) {
1625 pr_info("%s: kzalloc failed\n", __func__);
1626 continue;
1627 }
1628 /* copy hw scan info */
1629 memcpy(target->hwinfo, scan_info, scan_info->size);
1630 target->essid_len = strnlen(scan_info->essid,
1631 sizeof(scan_info->essid));
1632 target->rate_len = 0;
1633 for (r = 0; r < 12; r++)
1634 if (scan_info->rate[r])
1635 target->rate_len++;
1636 if (8 < target->rate_len)
1637 pr_info("%s: AP returns %d rates\n", __func__,
1638 target->rate_len);
1639 target->rate_ext_len = 0;
1640 for (r = 0; r < 16; r++)
1641 if (scan_info->ext_rate[r])
1642 target->rate_ext_len++;
1643 list_move_tail(&target->list, &wl->network_list);
1644 }
1645 memset(&data, 0, sizeof(data));
1646 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1647 NULL);
1648 out:
1649 free_page((unsigned long)buf);
1650 complete(&wl->scan_done);
1651 mutex_unlock(&wl->scan_lock);
1652 pr_debug("%s:end\n", __func__);
1653 }
1654
1655 /*
1656 * Select an appropriate bss from current scan list regarding
1657 * current settings from userspace.
1658 * The caller must hold wl->scan_lock,
1659 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1660 */
1661 static void update_best(struct gelic_wl_scan_info **best,
1662 struct gelic_wl_scan_info *candid,
1663 int *best_weight,
1664 int *weight)
1665 {
1666 if (*best_weight < ++(*weight)) {
1667 *best_weight = *weight;
1668 *best = candid;
1669 }
1670 }
1671
1672 static
1673 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1674 {
1675 struct gelic_wl_scan_info *scan_info;
1676 struct gelic_wl_scan_info *best_bss;
1677 int weight, best_weight;
1678 u16 security;
1679
1680 pr_debug("%s: <-\n", __func__);
1681
1682 best_bss = NULL;
1683 best_weight = 0;
1684
1685 list_for_each_entry(scan_info, &wl->network_list, list) {
1686 pr_debug("%s: station %p\n", __func__, scan_info);
1687
1688 if (!scan_info->valid) {
1689 pr_debug("%s: station invalid\n", __func__);
1690 continue;
1691 }
1692
1693 /* If bss specified, check it only */
1694 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1695 if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1696 wl->bssid)) {
1697 best_bss = scan_info;
1698 pr_debug("%s: bssid matched\n", __func__);
1699 break;
1700 } else {
1701 pr_debug("%s: bssid unmached\n", __func__);
1702 continue;
1703 }
1704 }
1705
1706 weight = 0;
1707
1708 /* security */
1709 security = be16_to_cpu(scan_info->hwinfo->security) &
1710 GELIC_EURUS_SCAN_SEC_MASK;
1711 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1712 if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1713 update_best(&best_bss, scan_info,
1714 &best_weight, &weight);
1715 else
1716 continue;
1717 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1718 if (security == GELIC_EURUS_SCAN_SEC_WPA)
1719 update_best(&best_bss, scan_info,
1720 &best_weight, &weight);
1721 else
1722 continue;
1723 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1724 wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1725 if (security == GELIC_EURUS_SCAN_SEC_WEP)
1726 update_best(&best_bss, scan_info,
1727 &best_weight, &weight);
1728 else
1729 continue;
1730 }
1731
1732 /* If ESSID is set, check it */
1733 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1734 if ((scan_info->essid_len == wl->essid_len) &&
1735 !strncmp(wl->essid,
1736 scan_info->hwinfo->essid,
1737 scan_info->essid_len))
1738 update_best(&best_bss, scan_info,
1739 &best_weight, &weight);
1740 else
1741 continue;
1742 }
1743 }
1744
1745 #ifdef DEBUG
1746 pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1747 if (best_bss) {
1748 pr_debug("%s:addr=%pM\n", __func__,
1749 &best_bss->hwinfo->bssid[2]);
1750 }
1751 #endif
1752 return best_bss;
1753 }
1754
1755 /*
1756 * Setup WEP configuration to the chip
1757 * The caller must hold wl->scan_lock,
1758 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1759 */
1760 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1761 {
1762 unsigned int i;
1763 struct gelic_eurus_wep_cfg *wep;
1764 struct gelic_eurus_cmd *cmd;
1765 int wep104 = 0;
1766 int have_key = 0;
1767 int ret = 0;
1768
1769 pr_debug("%s: <-\n", __func__);
1770 /* we can assume no one should uses the buffer */
1771 wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1772 if (!wep)
1773 return -ENOMEM;
1774
1775 memset(wep, 0, sizeof(*wep));
1776
1777 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1778 pr_debug("%s: WEP mode\n", __func__);
1779 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1780 if (!test_bit(i, &wl->key_enabled))
1781 continue;
1782
1783 pr_debug("%s: key#%d enabled\n", __func__, i);
1784 have_key = 1;
1785 if (wl->key_len[i] == 13)
1786 wep104 = 1;
1787 else if (wl->key_len[i] != 5) {
1788 pr_info("%s: wrong wep key[%d]=%d\n",
1789 __func__, i, wl->key_len[i]);
1790 ret = -EINVAL;
1791 goto out;
1792 }
1793 memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1794 }
1795
1796 if (!have_key) {
1797 pr_info("%s: all wep key disabled\n", __func__);
1798 ret = -EINVAL;
1799 goto out;
1800 }
1801
1802 if (wep104) {
1803 pr_debug("%s: 104bit key\n", __func__);
1804 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1805 } else {
1806 pr_debug("%s: 40bit key\n", __func__);
1807 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1808 }
1809 } else {
1810 pr_debug("%s: NO encryption\n", __func__);
1811 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1812 }
1813
1814 /* issue wep setup */
1815 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1816 wep, sizeof(*wep));
1817 if (!cmd)
1818 ret = -ENOMEM;
1819 else if (cmd->status || cmd->cmd_status)
1820 ret = -ENXIO;
1821
1822 kfree(cmd);
1823 out:
1824 free_page((unsigned long)wep);
1825 pr_debug("%s: ->\n", __func__);
1826 return ret;
1827 }
1828
1829 #ifdef DEBUG
1830 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1831 {
1832 switch (sec) {
1833 case GELIC_EURUS_WPA_SEC_NONE:
1834 return "NONE";
1835 break;
1836 case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1837 return "WPA_TKIP_TKIP";
1838 break;
1839 case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1840 return "WPA_TKIP_AES";
1841 break;
1842 case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1843 return "WPA_AES_AES";
1844 break;
1845 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1846 return "WPA2_TKIP_TKIP";
1847 break;
1848 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1849 return "WPA2_TKIP_AES";
1850 break;
1851 case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1852 return "WPA2_AES_AES";
1853 break;
1854 }
1855 return "";
1856 };
1857 #endif
1858
1859 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1860 {
1861 struct gelic_eurus_wpa_cfg *wpa;
1862 struct gelic_eurus_cmd *cmd;
1863 u16 security;
1864 int ret = 0;
1865
1866 pr_debug("%s: <-\n", __func__);
1867 /* we can assume no one should uses the buffer */
1868 wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1869 if (!wpa)
1870 return -ENOMEM;
1871
1872 memset(wpa, 0, sizeof(*wpa));
1873
1874 if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1875 pr_info("%s: PSK not configured yet\n", __func__);
1876
1877 /* copy key */
1878 memcpy(wpa->psk, wl->psk, wl->psk_len);
1879
1880 /* set security level */
1881 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1882 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1883 security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1884 } else {
1885 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1886 precise_ie())
1887 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1888 else
1889 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1890 }
1891 } else {
1892 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1893 security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1894 } else {
1895 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1896 precise_ie())
1897 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1898 else
1899 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1900 }
1901 }
1902 wpa->security = cpu_to_be16(security);
1903
1904 /* PSK type */
1905 wpa->psk_type = cpu_to_be16(wl->psk_type);
1906 #ifdef DEBUG
1907 pr_debug("%s: sec=%s psktype=%s\n", __func__,
1908 wpasecstr(wpa->security),
1909 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1910 "BIN" : "passphrase");
1911 #if 0
1912 /*
1913 * don't enable here if you plan to submit
1914 * the debug log because this dumps your precious
1915 * passphrase/key.
1916 */
1917 pr_debug("%s: psk=%s\n", __func__,
1918 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1919 "N/A" : wpa->psk);
1920 #endif
1921 #endif
1922 /* issue wpa setup */
1923 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1924 wpa, sizeof(*wpa));
1925 if (!cmd)
1926 ret = -ENOMEM;
1927 else if (cmd->status || cmd->cmd_status)
1928 ret = -ENXIO;
1929 kfree(cmd);
1930 free_page((unsigned long)wpa);
1931 pr_debug("%s: --> %d\n", __func__, ret);
1932 return ret;
1933 }
1934
1935 /*
1936 * Start association. caller must hold assoc_stat_lock
1937 */
1938 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1939 struct gelic_wl_scan_info *bss)
1940 {
1941 struct gelic_eurus_cmd *cmd;
1942 struct gelic_eurus_common_cfg *common;
1943 int ret = 0;
1944 unsigned long rc;
1945
1946 pr_debug("%s: <-\n", __func__);
1947
1948 /* do common config */
1949 common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1950 if (!common)
1951 return -ENOMEM;
1952
1953 memset(common, 0, sizeof(*common));
1954 common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1955 common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1956
1957 common->scan_index = cpu_to_be16(bss->eurus_index);
1958 switch (wl->auth_method) {
1959 case GELIC_EURUS_AUTH_OPEN:
1960 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1961 break;
1962 case GELIC_EURUS_AUTH_SHARED:
1963 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1964 break;
1965 }
1966
1967 #ifdef DEBUG
1968 scan_list_dump(wl);
1969 #endif
1970 pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1971 be16_to_cpu(common->scan_index),
1972 be16_to_cpu(common->bss_type),
1973 be16_to_cpu(common->auth_method));
1974
1975 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1976 common, sizeof(*common));
1977 if (!cmd || cmd->status || cmd->cmd_status) {
1978 ret = -ENOMEM;
1979 kfree(cmd);
1980 goto out;
1981 }
1982 kfree(cmd);
1983
1984 /* WEP/WPA */
1985 switch (wl->wpa_level) {
1986 case GELIC_WL_WPA_LEVEL_NONE:
1987 /* If WEP or no security, setup WEP config */
1988 ret = gelic_wl_do_wep_setup(wl);
1989 break;
1990 case GELIC_WL_WPA_LEVEL_WPA:
1991 case GELIC_WL_WPA_LEVEL_WPA2:
1992 ret = gelic_wl_do_wpa_setup(wl);
1993 break;
1994 }
1995
1996 if (ret) {
1997 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1998 ret);
1999 ret = -EPERM;
2000 gelic_wl_send_iwap_event(wl, NULL);
2001 goto out;
2002 }
2003
2004 /* start association */
2005 init_completion(&wl->assoc_done);
2006 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2007 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2008 NULL, 0);
2009 if (!cmd || cmd->status || cmd->cmd_status) {
2010 pr_debug("%s: assoc request failed\n", __func__);
2011 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2012 kfree(cmd);
2013 ret = -ENOMEM;
2014 gelic_wl_send_iwap_event(wl, NULL);
2015 goto out;
2016 }
2017 kfree(cmd);
2018
2019 /* wait for connected event */
2020 rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2021
2022 if (!rc) {
2023 /* timeouted. Maybe key or cyrpt mode is wrong */
2024 pr_info("%s: connect timeout\n", __func__);
2025 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2026 NULL, 0);
2027 kfree(cmd);
2028 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2029 gelic_wl_send_iwap_event(wl, NULL);
2030 ret = -ENXIO;
2031 } else {
2032 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2033 /* copy bssid */
2034 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2035
2036 /* send connect event */
2037 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2038 pr_info("%s: connected\n", __func__);
2039 }
2040 out:
2041 free_page((unsigned long)common);
2042 pr_debug("%s: ->\n", __func__);
2043 return ret;
2044 }
2045
2046 /*
2047 * connected event
2048 */
2049 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2050 u64 event)
2051 {
2052 u64 desired_event = 0;
2053
2054 switch (wl->wpa_level) {
2055 case GELIC_WL_WPA_LEVEL_NONE:
2056 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2057 break;
2058 case GELIC_WL_WPA_LEVEL_WPA:
2059 case GELIC_WL_WPA_LEVEL_WPA2:
2060 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2061 break;
2062 }
2063
2064 if (desired_event == event) {
2065 pr_debug("%s: completed\n", __func__);
2066 complete(&wl->assoc_done);
2067 netif_carrier_on(port_to_netdev(wl_port(wl)));
2068 } else
2069 pr_debug("%s: event %#llx under wpa\n",
2070 __func__, event);
2071 }
2072
2073 /*
2074 * disconnect event
2075 */
2076 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2077 u64 event)
2078 {
2079 struct gelic_eurus_cmd *cmd;
2080 int lock;
2081
2082 /*
2083 * If we fall here in the middle of association,
2084 * associate_bss() should be waiting for complation of
2085 * wl->assoc_done.
2086 * As it waits with timeout, just leave assoc_done
2087 * uncompleted, then it terminates with timeout
2088 */
2089 if (!mutex_trylock(&wl->assoc_stat_lock)) {
2090 pr_debug("%s: already locked\n", __func__);
2091 lock = 0;
2092 } else {
2093 pr_debug("%s: obtain lock\n", __func__);
2094 lock = 1;
2095 }
2096
2097 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2098 kfree(cmd);
2099
2100 /* send disconnected event to the supplicant */
2101 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2102 gelic_wl_send_iwap_event(wl, NULL);
2103
2104 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2105 netif_carrier_off(port_to_netdev(wl_port(wl)));
2106
2107 if (lock)
2108 mutex_unlock(&wl->assoc_stat_lock);
2109 }
2110 /*
2111 * event worker
2112 */
2113 #ifdef DEBUG
2114 static const char *eventstr(enum gelic_lv1_wl_event event)
2115 {
2116 static char buf[32];
2117 char *ret;
2118 if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2119 ret = "EURUS_READY";
2120 else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2121 ret = "SCAN_COMPLETED";
2122 else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2123 ret = "DEAUTH";
2124 else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2125 ret = "BEACON_LOST";
2126 else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2127 ret = "CONNECTED";
2128 else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2129 ret = "WPA_CONNECTED";
2130 else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2131 ret = "WPA_ERROR";
2132 else {
2133 sprintf(buf, "Unknown(%#x)", event);
2134 ret = buf;
2135 }
2136 return ret;
2137 }
2138 #else
2139 static const char *eventstr(enum gelic_lv1_wl_event event)
2140 {
2141 return NULL;
2142 }
2143 #endif
2144 static void gelic_wl_event_worker(struct work_struct *work)
2145 {
2146 struct gelic_wl_info *wl;
2147 struct gelic_port *port;
2148 u64 event, tmp;
2149 int status;
2150
2151 pr_debug("%s:start\n", __func__);
2152 wl = container_of(work, struct gelic_wl_info, event_work.work);
2153 port = wl_port(wl);
2154 while (1) {
2155 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2156 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2157 &event, &tmp);
2158 if (status) {
2159 if (status != LV1_NO_ENTRY)
2160 pr_debug("%s:wlan event failed %d\n",
2161 __func__, status);
2162 /* got all events */
2163 pr_debug("%s:end\n", __func__);
2164 return;
2165 }
2166 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2167 switch (event) {
2168 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2169 gelic_wl_scan_complete_event(wl);
2170 break;
2171 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2172 case GELIC_LV1_WL_EVENT_DEAUTH:
2173 gelic_wl_disconnect_event(wl, event);
2174 break;
2175 case GELIC_LV1_WL_EVENT_CONNECTED:
2176 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2177 gelic_wl_connected_event(wl, event);
2178 break;
2179 default:
2180 break;
2181 }
2182 } /* while */
2183 }
2184 /*
2185 * association worker
2186 */
2187 static void gelic_wl_assoc_worker(struct work_struct *work)
2188 {
2189 struct gelic_wl_info *wl;
2190
2191 struct gelic_wl_scan_info *best_bss;
2192 int ret;
2193 unsigned long irqflag;
2194 u8 *essid;
2195 size_t essid_len;
2196
2197 wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2198
2199 mutex_lock(&wl->assoc_stat_lock);
2200
2201 if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2202 goto out;
2203
2204 spin_lock_irqsave(&wl->lock, irqflag);
2205 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2206 pr_debug("%s: assoc ESSID configured %s\n", __func__,
2207 wl->essid);
2208 essid = wl->essid;
2209 essid_len = wl->essid_len;
2210 } else {
2211 essid = NULL;
2212 essid_len = 0;
2213 }
2214 spin_unlock_irqrestore(&wl->lock, irqflag);
2215
2216 ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2217 if (ret == -ERESTARTSYS) {
2218 pr_debug("%s: scan start failed association\n", __func__);
2219 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2220 goto out;
2221 } else if (ret) {
2222 pr_info("%s: scan prerequisite failed\n", __func__);
2223 goto out;
2224 }
2225
2226 /*
2227 * Wait for bss scan completion
2228 * If we have scan list already, gelic_wl_start_scan()
2229 * returns OK and raises the complete. Thus,
2230 * it's ok to wait unconditionally here
2231 */
2232 wait_for_completion(&wl->scan_done);
2233
2234 pr_debug("%s: scan done\n", __func__);
2235 mutex_lock(&wl->scan_lock);
2236 if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2237 gelic_wl_send_iwap_event(wl, NULL);
2238 pr_info("%s: no scan list. association failed\n", __func__);
2239 goto scan_lock_out;
2240 }
2241
2242 /* find best matching bss */
2243 best_bss = gelic_wl_find_best_bss(wl);
2244 if (!best_bss) {
2245 gelic_wl_send_iwap_event(wl, NULL);
2246 pr_info("%s: no bss matched. association failed\n", __func__);
2247 goto scan_lock_out;
2248 }
2249
2250 /* ok, do association */
2251 ret = gelic_wl_associate_bss(wl, best_bss);
2252 if (ret)
2253 pr_info("%s: association failed %d\n", __func__, ret);
2254 scan_lock_out:
2255 mutex_unlock(&wl->scan_lock);
2256 out:
2257 mutex_unlock(&wl->assoc_stat_lock);
2258 }
2259 /*
2260 * Interrupt handler
2261 * Called from the ethernet interrupt handler
2262 * Processes wireless specific virtual interrupts only
2263 */
2264 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2265 {
2266 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2267
2268 if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2269 pr_debug("%s:cmd complete\n", __func__);
2270 complete(&wl->cmd_done_intr);
2271 }
2272
2273 if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2274 pr_debug("%s:event received\n", __func__);
2275 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2276 }
2277 }
2278
2279 /*
2280 * driver helpers
2281 */
2282 static const iw_handler gelic_wl_wext_handler[] =
2283 {
2284 IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2285 IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2286 IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2287 IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2288 IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2289 IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2290 IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2291 IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2292 IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2293 IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2294 IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2295 IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2296 IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2297 IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2298 IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2299 IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2300 IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2301 };
2302
2303 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2304 .num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2305 .standard = gelic_wl_wext_handler,
2306 .get_wireless_stats = gelic_wl_get_wireless_stats,
2307 };
2308
2309 static struct net_device * __devinit gelic_wl_alloc(struct gelic_card *card)
2310 {
2311 struct net_device *netdev;
2312 struct gelic_port *port;
2313 struct gelic_wl_info *wl;
2314 unsigned int i;
2315
2316 pr_debug("%s:start\n", __func__);
2317 netdev = alloc_etherdev(sizeof(struct gelic_port) +
2318 sizeof(struct gelic_wl_info));
2319 pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2320 if (!netdev)
2321 return NULL;
2322
2323 strcpy(netdev->name, "wlan%d");
2324
2325 port = netdev_priv(netdev);
2326 port->netdev = netdev;
2327 port->card = card;
2328 port->type = GELIC_PORT_WIRELESS;
2329
2330 wl = port_wl(port);
2331 pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2332
2333 /* allocate scan list */
2334 wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2335 GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2336
2337 if (!wl->networks)
2338 goto fail_bss;
2339
2340 wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2341 if (!wl->eurus_cmd_queue)
2342 goto fail_cmd_workqueue;
2343
2344 wl->event_queue = create_singlethread_workqueue("gelic_event");
2345 if (!wl->event_queue)
2346 goto fail_event_workqueue;
2347
2348 INIT_LIST_HEAD(&wl->network_free_list);
2349 INIT_LIST_HEAD(&wl->network_list);
2350 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2351 list_add_tail(&wl->networks[i].list,
2352 &wl->network_free_list);
2353 init_completion(&wl->cmd_done_intr);
2354
2355 INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2356 INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2357 mutex_init(&wl->scan_lock);
2358 mutex_init(&wl->assoc_stat_lock);
2359
2360 init_completion(&wl->scan_done);
2361 /* for the case that no scan request is issued and stop() is called */
2362 complete(&wl->scan_done);
2363
2364 spin_lock_init(&wl->lock);
2365
2366 wl->scan_age = 5*HZ; /* FIXME */
2367
2368 /* buffer for receiving scanned list etc */
2369 BUILD_BUG_ON(PAGE_SIZE <
2370 sizeof(struct gelic_eurus_scan_info) *
2371 GELIC_EURUS_MAX_SCAN);
2372 pr_debug("%s:end\n", __func__);
2373 return netdev;
2374
2375 fail_event_workqueue:
2376 destroy_workqueue(wl->eurus_cmd_queue);
2377 fail_cmd_workqueue:
2378 kfree(wl->networks);
2379 fail_bss:
2380 free_netdev(netdev);
2381 pr_debug("%s:end error\n", __func__);
2382 return NULL;
2383
2384 }
2385
2386 static void gelic_wl_free(struct gelic_wl_info *wl)
2387 {
2388 struct gelic_wl_scan_info *scan_info;
2389 unsigned int i;
2390
2391 pr_debug("%s: <-\n", __func__);
2392
2393 pr_debug("%s: destroy queues\n", __func__);
2394 destroy_workqueue(wl->eurus_cmd_queue);
2395 destroy_workqueue(wl->event_queue);
2396
2397 scan_info = wl->networks;
2398 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2399 kfree(scan_info->hwinfo);
2400 kfree(wl->networks);
2401
2402 free_netdev(port_to_netdev(wl_port(wl)));
2403
2404 pr_debug("%s: ->\n", __func__);
2405 }
2406
2407 static int gelic_wl_try_associate(struct net_device *netdev)
2408 {
2409 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2410 int ret = -1;
2411 unsigned int i;
2412
2413 pr_debug("%s: <-\n", __func__);
2414
2415 /* check constraits for start association */
2416 /* for no access restriction AP */
2417 if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2418 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2419 &wl->stat))
2420 goto do_associate;
2421 else {
2422 pr_debug("%s: no wep, not configured\n", __func__);
2423 return ret;
2424 }
2425 }
2426
2427 /* for WEP, one of four keys should be set */
2428 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2429 /* one of keys set */
2430 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2431 if (test_bit(i, &wl->key_enabled))
2432 goto do_associate;
2433 }
2434 pr_debug("%s: WEP, but no key specified\n", __func__);
2435 return ret;
2436 }
2437
2438 /* for WPA[2], psk should be set */
2439 if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2440 (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2441 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2442 &wl->stat))
2443 goto do_associate;
2444 else {
2445 pr_debug("%s: AES/TKIP, but PSK not configured\n",
2446 __func__);
2447 return ret;
2448 }
2449 }
2450
2451 do_associate:
2452 ret = schedule_delayed_work(&wl->assoc_work, 0);
2453 pr_debug("%s: start association work %d\n", __func__, ret);
2454 return ret;
2455 }
2456
2457 /*
2458 * netdev handlers
2459 */
2460 static int gelic_wl_open(struct net_device *netdev)
2461 {
2462 struct gelic_card *card = netdev_card(netdev);
2463
2464 pr_debug("%s:->%p\n", __func__, netdev);
2465
2466 gelic_card_up(card);
2467
2468 /* try to associate */
2469 gelic_wl_try_associate(netdev);
2470
2471 netif_start_queue(netdev);
2472
2473 pr_debug("%s:<-\n", __func__);
2474 return 0;
2475 }
2476
2477 /*
2478 * reset state machine
2479 */
2480 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2481 {
2482 struct gelic_wl_scan_info *target;
2483 struct gelic_wl_scan_info *tmp;
2484
2485 /* empty scan list */
2486 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2487 list_move_tail(&target->list, &wl->network_free_list);
2488 }
2489 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2490
2491 /* clear configuration */
2492 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2493 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2494 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2495 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2496
2497 wl->key_enabled = 0;
2498 wl->current_key = 0;
2499
2500 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2501 wl->psk_len = 0;
2502
2503 wl->essid_len = 0;
2504 memset(wl->essid, 0, sizeof(wl->essid));
2505 memset(wl->bssid, 0, sizeof(wl->bssid));
2506 memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2507
2508 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2509
2510 memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2511 /* all status bit clear */
2512 wl->stat = 0;
2513 return 0;
2514 }
2515
2516 /*
2517 * Tell eurus to terminate association
2518 */
2519 static void gelic_wl_disconnect(struct net_device *netdev)
2520 {
2521 struct gelic_port *port = netdev_priv(netdev);
2522 struct gelic_wl_info *wl = port_wl(port);
2523 struct gelic_eurus_cmd *cmd;
2524
2525 /*
2526 * If scann process is running on chip,
2527 * further requests will be rejected
2528 */
2529 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2530 wait_for_completion_timeout(&wl->scan_done, HZ);
2531
2532 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2533 kfree(cmd);
2534 gelic_wl_send_iwap_event(wl, NULL);
2535 };
2536
2537 static int gelic_wl_stop(struct net_device *netdev)
2538 {
2539 struct gelic_port *port = netdev_priv(netdev);
2540 struct gelic_wl_info *wl = port_wl(port);
2541 struct gelic_card *card = netdev_card(netdev);
2542
2543 pr_debug("%s:<-\n", __func__);
2544
2545 /*
2546 * Cancel pending association work.
2547 * event work can run after netdev down
2548 */
2549 cancel_delayed_work(&wl->assoc_work);
2550
2551 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2552 gelic_wl_disconnect(netdev);
2553
2554 /* reset our state machine */
2555 gelic_wl_reset_state(wl);
2556
2557 netif_stop_queue(netdev);
2558
2559 gelic_card_down(card);
2560
2561 pr_debug("%s:->\n", __func__);
2562 return 0;
2563 }
2564
2565 /* -- */
2566
2567 static const struct net_device_ops gelic_wl_netdevice_ops = {
2568 .ndo_open = gelic_wl_open,
2569 .ndo_stop = gelic_wl_stop,
2570 .ndo_start_xmit = gelic_net_xmit,
2571 .ndo_set_multicast_list = gelic_net_set_multi,
2572 .ndo_change_mtu = gelic_net_change_mtu,
2573 .ndo_tx_timeout = gelic_net_tx_timeout,
2574 .ndo_set_mac_address = eth_mac_addr,
2575 .ndo_validate_addr = eth_validate_addr,
2576 #ifdef CONFIG_NET_POLL_CONTROLLER
2577 .ndo_poll_controller = gelic_net_poll_controller,
2578 #endif
2579 };
2580
2581 static const struct ethtool_ops gelic_wl_ethtool_ops = {
2582 .get_drvinfo = gelic_net_get_drvinfo,
2583 .get_link = gelic_wl_get_link,
2584 };
2585
2586 static void __devinit gelic_wl_setup_netdev_ops(struct net_device *netdev)
2587 {
2588 struct gelic_wl_info *wl;
2589 wl = port_wl(netdev_priv(netdev));
2590 BUG_ON(!wl);
2591 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2592
2593 netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2594 netdev->netdev_ops = &gelic_wl_netdevice_ops;
2595 netdev->wireless_data = &wl->wireless_data;
2596 netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2597 }
2598
2599 /*
2600 * driver probe/remove
2601 */
2602 int __devinit gelic_wl_driver_probe(struct gelic_card *card)
2603 {
2604 int ret;
2605 struct net_device *netdev;
2606
2607 pr_debug("%s:start\n", __func__);
2608
2609 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2610 return 0;
2611 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2612 return 0;
2613
2614 /* alloc netdevice for wireless */
2615 netdev = gelic_wl_alloc(card);
2616 if (!netdev)
2617 return -ENOMEM;
2618
2619 /* setup net_device structure */
2620 SET_NETDEV_DEV(netdev, &card->dev->core);
2621 gelic_wl_setup_netdev_ops(netdev);
2622
2623 /* setup some of net_device and register it */
2624 ret = gelic_net_setup_netdev(netdev, card);
2625 if (ret)
2626 goto fail_setup;
2627 card->netdev[GELIC_PORT_WIRELESS] = netdev;
2628
2629 /* add enable wireless interrupt */
2630 card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2631 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2632 /* to allow wireless commands while both interfaces are down */
2633 gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2634 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2635 pr_debug("%s:end\n", __func__);
2636 return 0;
2637
2638 fail_setup:
2639 gelic_wl_free(port_wl(netdev_port(netdev)));
2640
2641 return ret;
2642 }
2643
2644 int gelic_wl_driver_remove(struct gelic_card *card)
2645 {
2646 struct gelic_wl_info *wl;
2647 struct net_device *netdev;
2648
2649 pr_debug("%s:start\n", __func__);
2650
2651 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2652 return 0;
2653 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2654 return 0;
2655
2656 netdev = card->netdev[GELIC_PORT_WIRELESS];
2657 wl = port_wl(netdev_priv(netdev));
2658
2659 /* if the interface was not up, but associated */
2660 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2661 gelic_wl_disconnect(netdev);
2662
2663 complete(&wl->cmd_done_intr);
2664
2665 /* cancel all work queue */
2666 cancel_delayed_work(&wl->assoc_work);
2667 cancel_delayed_work(&wl->event_work);
2668 flush_workqueue(wl->eurus_cmd_queue);
2669 flush_workqueue(wl->event_queue);
2670
2671 unregister_netdev(netdev);
2672
2673 /* disable wireless interrupt */
2674 pr_debug("%s: disable intr\n", __func__);
2675 card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2676 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2677 /* free bss list, netdev*/
2678 gelic_wl_free(wl);
2679 pr_debug("%s:end\n", __func__);
2680 return 0;
2681 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree