1 /*
2  *  PS3 gelic network driver.
3  *
4  * Copyright (C) 2007 Sony Computer Entertainment Inc.
5  * Copyright 2007 Sony Corporation
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2
9  * as published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19  */
20 #undef DEBUG
21 
22 #include <linux/kernel.h>
23 #include <linux/module.h>
24 #include <linux/slab.h>
25 
26 #include <linux/etherdevice.h>
27 #include <linux/ethtool.h>
28 #include <linux/if_vlan.h>
29 
30 #include <linux/in.h>
31 #include <linux/ip.h>
32 #include <linux/tcp.h>
33 #include <linux/wireless.h>
34 #include <linux/ieee80211.h>
35 #include <linux/if_arp.h>
36 #include <linux/ctype.h>
37 #include <linux/string.h>
38 #include <net/iw_handler.h>
39 
40 #include <linux/dma-mapping.h>
41 #include <net/checksum.h>
42 #include <asm/firmware.h>
43 #include <asm/ps3.h>
44 #include <asm/lv1call.h>
45 
46 #include "ps3_gelic_net.h"
47 #include "ps3_gelic_wireless.h"
48 
49 
50 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
51 			       u8 *essid, size_t essid_len);
52 static int gelic_wl_try_associate(struct net_device *netdev);
53 
54 /*
55  * tables
56  */
57 
58 /* 802.11b/g channel to freq in MHz */
59 static const int channel_freq[] = {
60 	2412, 2417, 2422, 2427, 2432,
61 	2437, 2442, 2447, 2452, 2457,
62 	2462, 2467, 2472, 2484
63 };
64 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
65 
66 /* in bps */
67 static const int bitrate_list[] = {
68 	  1000000,
69 	  2000000,
70 	  5500000,
71 	 11000000,
72 	  6000000,
73 	  9000000,
74 	 12000000,
75 	 18000000,
76 	 24000000,
77 	 36000000,
78 	 48000000,
79 	 54000000
80 };
81 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
82 
83 /*
84  * wpa2 support requires the hypervisor version 2.0 or later
85  */
86 static inline int wpa2_capable(void)
87 {
88 	return 0 <= ps3_compare_firmware_version(2, 0, 0);
89 }
90 
91 static inline int precise_ie(void)
92 {
93 	return 0 <= ps3_compare_firmware_version(2, 2, 0);
94 }
95 /*
96  * post_eurus_cmd helpers
97  */
98 struct eurus_cmd_arg_info {
99 	int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
100 	int post_arg; /* command requires arg1, arg2 at GET_RESULT */
101 };
102 
103 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
104 	[GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
105 	[GELIC_EURUS_CMD_SET_WEP_CFG]    = { .pre_arg = 1},
106 	[GELIC_EURUS_CMD_SET_WPA_CFG]    = { .pre_arg = 1},
107 	[GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
108 	[GELIC_EURUS_CMD_GET_WEP_CFG]    = { .post_arg = 1},
109 	[GELIC_EURUS_CMD_GET_WPA_CFG]    = { .post_arg = 1},
110 	[GELIC_EURUS_CMD_GET_RSSI_CFG]   = { .post_arg = 1},
111 	[GELIC_EURUS_CMD_START_SCAN]     = { .pre_arg = 1},
112 	[GELIC_EURUS_CMD_GET_SCAN]       = { .post_arg = 1},
113 };
114 
115 #ifdef DEBUG
116 static const char *cmdstr(enum gelic_eurus_command ix)
117 {
118 	switch (ix) {
119 	case GELIC_EURUS_CMD_ASSOC:
120 		return "ASSOC";
121 	case GELIC_EURUS_CMD_DISASSOC:
122 		return "DISASSOC";
123 	case GELIC_EURUS_CMD_START_SCAN:
124 		return "SCAN";
125 	case GELIC_EURUS_CMD_GET_SCAN:
126 		return "GET SCAN";
127 	case GELIC_EURUS_CMD_SET_COMMON_CFG:
128 		return "SET_COMMON_CFG";
129 	case GELIC_EURUS_CMD_GET_COMMON_CFG:
130 		return "GET_COMMON_CFG";
131 	case GELIC_EURUS_CMD_SET_WEP_CFG:
132 		return "SET_WEP_CFG";
133 	case GELIC_EURUS_CMD_GET_WEP_CFG:
134 		return "GET_WEP_CFG";
135 	case GELIC_EURUS_CMD_SET_WPA_CFG:
136 		return "SET_WPA_CFG";
137 	case GELIC_EURUS_CMD_GET_WPA_CFG:
138 		return "GET_WPA_CFG";
139 	case GELIC_EURUS_CMD_GET_RSSI_CFG:
140 		return "GET_RSSI";
141 	default:
142 		break;
143 	}
144 	return "";
145 };
146 #else
147 static inline const char *cmdstr(enum gelic_eurus_command ix)
148 {
149 	return "";
150 }
151 #endif
152 
153 /* synchronously do eurus commands */
154 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
155 {
156 	struct gelic_eurus_cmd *cmd;
157 	struct gelic_card *card;
158 	struct gelic_wl_info *wl;
159 
160 	u64 arg1, arg2;
161 
162 	pr_debug("%s: <-\n", __func__);
163 	cmd = container_of(work, struct gelic_eurus_cmd, work);
164 	BUG_ON(cmd_info[cmd->cmd].pre_arg &&
165 	       cmd_info[cmd->cmd].post_arg);
166 	wl = cmd->wl;
167 	card = port_to_card(wl_port(wl));
168 
169 	if (cmd_info[cmd->cmd].pre_arg) {
170 		arg1 = (cmd->buffer) ?
171 			ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
172 			0;
173 		arg2 = cmd->buf_size;
174 	} else {
175 		arg1 = 0;
176 		arg2 = 0;
177 	}
178 	init_completion(&wl->cmd_done_intr);
179 	pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
180 	cmd->status = lv1_net_control(bus_id(card), dev_id(card),
181 				      GELIC_LV1_POST_WLAN_CMD,
182 				      cmd->cmd, arg1, arg2,
183 				      &cmd->tag, &cmd->size);
184 	if (cmd->status) {
185 		complete(&cmd->done);
186 		pr_info("%s: cmd issue failed\n", __func__);
187 		return;
188 	}
189 
190 	wait_for_completion(&wl->cmd_done_intr);
191 
192 	if (cmd_info[cmd->cmd].post_arg) {
193 		arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
194 		arg2 = cmd->buf_size;
195 	} else {
196 		arg1 = 0;
197 		arg2 = 0;
198 	}
199 
200 	cmd->status = lv1_net_control(bus_id(card), dev_id(card),
201 				      GELIC_LV1_GET_WLAN_CMD_RESULT,
202 				      cmd->tag, arg1, arg2,
203 				      &cmd->cmd_status, &cmd->size);
204 #ifdef DEBUG
205 	if (cmd->status || cmd->cmd_status) {
206 	pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
207 		 cmd->tag, arg1, arg2);
208 	pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
209 		 __func__, cmd->status, cmd->cmd_status, cmd->size);
210 	}
211 #endif
212 	complete(&cmd->done);
213 	pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
214 }
215 
216 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
217 						    unsigned int eurus_cmd,
218 						    void *buffer,
219 						    unsigned int buf_size)
220 {
221 	struct gelic_eurus_cmd *cmd;
222 
223 	/* allocate cmd */
224 	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
225 	if (!cmd)
226 		return NULL;
227 
228 	/* initialize members */
229 	cmd->cmd = eurus_cmd;
230 	cmd->buffer = buffer;
231 	cmd->buf_size = buf_size;
232 	cmd->wl = wl;
233 	INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
234 	init_completion(&cmd->done);
235 	queue_work(wl->eurus_cmd_queue, &cmd->work);
236 
237 	/* wait for command completion */
238 	wait_for_completion(&cmd->done);
239 
240 	return cmd;
241 }
242 
243 static u32 gelic_wl_get_link(struct net_device *netdev)
244 {
245 	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
246 	u32 ret;
247 
248 	pr_debug("%s: <-\n", __func__);
249 	mutex_lock(&wl->assoc_stat_lock);
250 	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
251 		ret = 1;
252 	else
253 		ret = 0;
254 	mutex_unlock(&wl->assoc_stat_lock);
255 	pr_debug("%s: ->\n", __func__);
256 	return ret;
257 }
258 
259 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
260 {
261 	union iwreq_data data;
262 
263 	memset(&data, 0, sizeof(data));
264 	if (bssid)
265 		memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
266 	data.ap_addr.sa_family = ARPHRD_ETHER;
267 	wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
268 			    &data, NULL);
269 }
270 
271 /*
272  * wireless extension handlers and helpers
273  */
274 
275 /* SIOGIWNAME */
276 static int gelic_wl_get_name(struct net_device *dev,
277 			     struct iw_request_info *info,
278 			     union iwreq_data *iwreq, char *extra)
279 {
280 	strcpy(iwreq->name, "IEEE 802.11bg");
281 	return 0;
282 }
283 
284 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
285 {
286 	struct gelic_card *card = port_to_card(wl_port(wl));
287 	u64 ch_info_raw, tmp;
288 	int status;
289 
290 	if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
291 		status = lv1_net_control(bus_id(card), dev_id(card),
292 					 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
293 					 &ch_info_raw,
294 					 &tmp);
295 		/* some fw versions may return error */
296 		if (status) {
297 			if (status != LV1_NO_ENTRY)
298 				pr_info("%s: available ch unknown\n", __func__);
299 			wl->ch_info = 0x07ff;/* 11 ch */
300 		} else
301 			/* 16 bits of MSB has available channels */
302 			wl->ch_info = ch_info_raw >> 48;
303 	}
304 }
305 
306 /* SIOGIWRANGE */
307 static int gelic_wl_get_range(struct net_device *netdev,
308 			      struct iw_request_info *info,
309 			      union iwreq_data *iwreq, char *extra)
310 {
311 	struct iw_point *point = &iwreq->data;
312 	struct iw_range *range = (struct iw_range *)extra;
313 	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
314 	unsigned int i, chs;
315 
316 	pr_debug("%s: <-\n", __func__);
317 	point->length = sizeof(struct iw_range);
318 	memset(range, 0, sizeof(struct iw_range));
319 
320 	range->we_version_compiled = WIRELESS_EXT;
321 	range->we_version_source = 22;
322 
323 	/* available channels and frequencies */
324 	gelic_wl_get_ch_info(wl);
325 
326 	for (i = 0, chs = 0;
327 	     i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
328 		if (wl->ch_info & (1 << i)) {
329 			range->freq[chs].i = i + 1;
330 			range->freq[chs].m = channel_freq[i];
331 			range->freq[chs].e = 6;
332 			chs++;
333 		}
334 	range->num_frequency = chs;
335 	range->old_num_frequency = chs;
336 	range->num_channels = chs;
337 	range->old_num_channels = chs;
338 
339 	/* bitrates */
340 	for (i = 0; i < NUM_BITRATES; i++)
341 		range->bitrate[i] = bitrate_list[i];
342 	range->num_bitrates = i;
343 
344 	/* signal levels */
345 	range->max_qual.qual = 100; /* relative value */
346 	range->max_qual.level = 100;
347 	range->avg_qual.qual = 50;
348 	range->avg_qual.level = 50;
349 	range->sensitivity = 0;
350 
351 	/* Event capability */
352 	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
353 	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
354 	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
355 
356 	/* encryption capability */
357 	range->enc_capa = IW_ENC_CAPA_WPA |
358 		IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
359 		IW_ENC_CAPA_4WAY_HANDSHAKE;
360 	if (wpa2_capable())
361 		range->enc_capa |= IW_ENC_CAPA_WPA2;
362 	range->encoding_size[0] = 5;	/* 40bit WEP */
363 	range->encoding_size[1] = 13;	/* 104bit WEP */
364 	range->encoding_size[2] = 32;	/* WPA-PSK */
365 	range->num_encoding_sizes = 3;
366 	range->max_encoding_tokens = GELIC_WEP_KEYS;
367 
368 	/* scan capability */
369 	range->scan_capa = IW_SCAN_CAPA_ESSID;
370 
371 	pr_debug("%s: ->\n", __func__);
372 	return 0;
373 
374 }
375 
376 /* SIOC{G,S}IWSCAN */
377 static int gelic_wl_set_scan(struct net_device *netdev,
378 			   struct iw_request_info *info,
379 			   union iwreq_data *wrqu, char *extra)
380 {
381 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
382 	struct iw_scan_req *req;
383 	u8 *essid = NULL;
384 	size_t essid_len = 0;
385 
386 	if (wrqu->data.length == sizeof(struct iw_scan_req) &&
387 	    wrqu->data.flags & IW_SCAN_THIS_ESSID) {
388 		req = (struct iw_scan_req*)extra;
389 		essid = req->essid;
390 		essid_len = req->essid_len;
391 		pr_debug("%s: ESSID scan =%s\n", __func__, essid);
392 	}
393 	return gelic_wl_start_scan(wl, 1, essid, essid_len);
394 }
395 
396 #define OUI_LEN 3
397 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
398 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
399 
400 /*
401  * synthesize WPA/RSN IE data
402  * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
403  * for the format
404  */
405 static size_t gelic_wl_synthesize_ie(u8 *buf,
406 				     struct gelic_eurus_scan_info *scan)
407 {
408 
409 	const u8 *oui_header;
410 	u8 *start = buf;
411 	int rsn;
412 	int ccmp;
413 
414 	pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
415 	switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
416 	case GELIC_EURUS_SCAN_SEC_WPA:
417 		rsn = 0;
418 		break;
419 	case GELIC_EURUS_SCAN_SEC_WPA2:
420 		rsn = 1;
421 		break;
422 	default:
423 		/* WEP or none.  No IE returned */
424 		return 0;
425 	}
426 
427 	switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
428 	case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
429 		ccmp = 0;
430 		break;
431 	case GELIC_EURUS_SCAN_SEC_WPA_AES:
432 		ccmp = 1;
433 		break;
434 	default:
435 		if (rsn) {
436 			ccmp = 1;
437 			pr_info("%s: no cipher info. defaulted to CCMP\n",
438 				__func__);
439 		} else {
440 			ccmp = 0;
441 			pr_info("%s: no cipher info. defaulted to TKIP\n",
442 				__func__);
443 		}
444 	}
445 
446 	if (rsn)
447 		oui_header = rsn_oui;
448 	else
449 		oui_header = wpa_oui;
450 
451 	/* element id */
452 	if (rsn)
453 		*buf++ = WLAN_EID_RSN;
454 	else
455 		*buf++ = WLAN_EID_VENDOR_SPECIFIC;
456 
457 	/* length filed; set later */
458 	buf++;
459 
460 	/* wpa special header */
461 	if (!rsn) {
462 		memcpy(buf, wpa_oui, OUI_LEN);
463 		buf += OUI_LEN;
464 		*buf++ = 0x01;
465 	}
466 
467 	/* version */
468 	*buf++ = 0x01; /* version 1.0 */
469 	*buf++ = 0x00;
470 
471 	/* group cipher */
472 	memcpy(buf, oui_header, OUI_LEN);
473 	buf += OUI_LEN;
474 
475 	if (ccmp)
476 		*buf++ = 0x04; /* CCMP */
477 	else
478 		*buf++ = 0x02; /* TKIP */
479 
480 	/* pairwise key count always 1 */
481 	*buf++ = 0x01;
482 	*buf++ = 0x00;
483 
484 	/* pairwise key suit */
485 	memcpy(buf, oui_header, OUI_LEN);
486 	buf += OUI_LEN;
487 	if (ccmp)
488 		*buf++ = 0x04; /* CCMP */
489 	else
490 		*buf++ = 0x02; /* TKIP */
491 
492 	/* AKM count is 1 */
493 	*buf++ = 0x01;
494 	*buf++ = 0x00;
495 
496 	/* AKM suite is assumed as PSK*/
497 	memcpy(buf, oui_header, OUI_LEN);
498 	buf += OUI_LEN;
499 	*buf++ = 0x02; /* PSK */
500 
501 	/* RSN capabilities is 0 */
502 	*buf++ = 0x00;
503 	*buf++ = 0x00;
504 
505 	/* set length field */
506 	start[1] = (buf - start - 2);
507 
508 	pr_debug("%s: ->\n", __func__);
509 	return buf - start;
510 }
511 
512 struct ie_item {
513 	u8 *data;
514 	u8 len;
515 };
516 
517 struct ie_info {
518 	struct ie_item wpa;
519 	struct ie_item rsn;
520 };
521 
522 static void gelic_wl_parse_ie(u8 *data, size_t len,
523 			      struct ie_info *ie_info)
524 {
525 	size_t data_left = len;
526 	u8 *pos = data;
527 	u8 item_len;
528 	u8 item_id;
529 
530 	pr_debug("%s: data=%p len=%ld\n", __func__,
531 		 data, len);
532 	memset(ie_info, 0, sizeof(struct ie_info));
533 
534 	while (2 <= data_left) {
535 		item_id = *pos++;
536 		item_len = *pos++;
537 		data_left -= 2;
538 
539 		if (data_left < item_len)
540 			break;
541 
542 		switch (item_id) {
543 		case WLAN_EID_VENDOR_SPECIFIC:
544 			if ((OUI_LEN + 1 <= item_len) &&
545 			    !memcmp(pos, wpa_oui, OUI_LEN) &&
546 			    pos[OUI_LEN] == 0x01) {
547 				ie_info->wpa.data = pos - 2;
548 				ie_info->wpa.len = item_len + 2;
549 			}
550 			break;
551 		case WLAN_EID_RSN:
552 			ie_info->rsn.data = pos - 2;
553 			/* length includes the header */
554 			ie_info->rsn.len = item_len + 2;
555 			break;
556 		default:
557 			pr_debug("%s: ignore %#x,%d\n", __func__,
558 				 item_id, item_len);
559 			break;
560 		}
561 		pos += item_len;
562 		data_left -= item_len;
563 	}
564 	pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
565 		 ie_info->wpa.data, ie_info->wpa.len,
566 		 ie_info->rsn.data, ie_info->rsn.len);
567 }
568 
569 
570 /*
571  * translate the scan informations from hypervisor to a
572  * independent format
573  */
574 static char *gelic_wl_translate_scan(struct net_device *netdev,
575 				     struct iw_request_info *info,
576 				     char *ev,
577 				     char *stop,
578 				     struct gelic_wl_scan_info *network)
579 {
580 	struct iw_event iwe;
581 	struct gelic_eurus_scan_info *scan = network->hwinfo;
582 	char *tmp;
583 	u8 rate;
584 	unsigned int i, j, len;
585 	u8 buf[64]; /* arbitrary size large enough */
586 
587 	pr_debug("%s: <-\n", __func__);
588 
589 	/* first entry should be AP's mac address */
590 	iwe.cmd = SIOCGIWAP;
591 	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
592 	memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
593 	ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
594 
595 	/* ESSID */
596 	iwe.cmd = SIOCGIWESSID;
597 	iwe.u.data.flags = 1;
598 	iwe.u.data.length = strnlen(scan->essid, 32);
599 	ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
600 
601 	/* FREQUENCY */
602 	iwe.cmd = SIOCGIWFREQ;
603 	iwe.u.freq.m = be16_to_cpu(scan->channel);
604 	iwe.u.freq.e = 0; /* table value in MHz */
605 	iwe.u.freq.i = 0;
606 	ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
607 
608 	/* RATES */
609 	iwe.cmd = SIOCGIWRATE;
610 	iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
611 	/* to stuff multiple values in one event */
612 	tmp = ev + iwe_stream_lcp_len(info);
613 	/* put them in ascendant order (older is first) */
614 	i = 0;
615 	j = 0;
616 	pr_debug("%s: rates=%d rate=%d\n", __func__,
617 		 network->rate_len, network->rate_ext_len);
618 	while (i < network->rate_len) {
619 		if (j < network->rate_ext_len &&
620 		    ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
621 		    rate = scan->ext_rate[j++] & 0x7f;
622 		else
623 		    rate = scan->rate[i++] & 0x7f;
624 		iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
625 		tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
626 					   IW_EV_PARAM_LEN);
627 	}
628 	while (j < network->rate_ext_len) {
629 		iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
630 		tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
631 					   IW_EV_PARAM_LEN);
632 	}
633 	/* Check if we added any rate */
634 	if (iwe_stream_lcp_len(info) < (tmp - ev))
635 		ev = tmp;
636 
637 	/* ENCODE */
638 	iwe.cmd = SIOCGIWENCODE;
639 	if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
640 		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
641 	else
642 		iwe.u.data.flags = IW_ENCODE_DISABLED;
643 	iwe.u.data.length = 0;
644 	ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
645 
646 	/* MODE */
647 	iwe.cmd = SIOCGIWMODE;
648 	if (be16_to_cpu(scan->capability) &
649 	    (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
650 		if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
651 			iwe.u.mode = IW_MODE_MASTER;
652 		else
653 			iwe.u.mode = IW_MODE_ADHOC;
654 		ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
655 	}
656 
657 	/* QUAL */
658 	iwe.cmd = IWEVQUAL;
659 	iwe.u.qual.updated  = IW_QUAL_ALL_UPDATED |
660 			IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
661 	iwe.u.qual.level = be16_to_cpu(scan->rssi);
662 	iwe.u.qual.qual = be16_to_cpu(scan->rssi);
663 	iwe.u.qual.noise = 0;
664 	ev  = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
665 
666 	/* RSN */
667 	memset(&iwe, 0, sizeof(iwe));
668 	if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
669 		/* If wpa[2] capable station, synthesize IE and put it */
670 		len = gelic_wl_synthesize_ie(buf, scan);
671 		if (len) {
672 			iwe.cmd = IWEVGENIE;
673 			iwe.u.data.length = len;
674 			ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
675 		}
676 	} else {
677 		/* this scan info has IE data */
678 		struct ie_info ie_info;
679 		size_t data_len;
680 
681 		data_len = be16_to_cpu(scan->size) - sizeof(*scan);
682 
683 		gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
684 
685 		if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
686 			memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
687 			iwe.cmd = IWEVGENIE;
688 			iwe.u.data.length = ie_info.wpa.len;
689 			ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
690 		}
691 
692 		if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
693 			memset(&iwe, 0, sizeof(iwe));
694 			memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
695 			iwe.cmd = IWEVGENIE;
696 			iwe.u.data.length = ie_info.rsn.len;
697 			ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
698 		}
699 	}
700 
701 	pr_debug("%s: ->\n", __func__);
702 	return ev;
703 }
704 
705 
706 static int gelic_wl_get_scan(struct net_device *netdev,
707 			     struct iw_request_info *info,
708 			     union iwreq_data *wrqu, char *extra)
709 {
710 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
711 	struct gelic_wl_scan_info *scan_info;
712 	char *ev = extra;
713 	char *stop = ev + wrqu->data.length;
714 	int ret = 0;
715 	unsigned long this_time = jiffies;
716 
717 	pr_debug("%s: <-\n", __func__);
718 	if (mutex_lock_interruptible(&wl->scan_lock))
719 		return -EAGAIN;
720 
721 	switch (wl->scan_stat) {
722 	case GELIC_WL_SCAN_STAT_SCANNING:
723 		/* If a scan in progress, caller should call me again */
724 		ret = -EAGAIN;
725 		goto out;
726 	case GELIC_WL_SCAN_STAT_INIT:
727 		/* last scan request failed or never issued */
728 		ret = -ENODEV;
729 		goto out;
730 	case GELIC_WL_SCAN_STAT_GOT_LIST:
731 		/* ok, use current list */
732 		break;
733 	}
734 
735 	list_for_each_entry(scan_info, &wl->network_list, list) {
736 		if (wl->scan_age == 0 ||
737 		    time_after(scan_info->last_scanned + wl->scan_age,
738 			       this_time))
739 			ev = gelic_wl_translate_scan(netdev, info,
740 						     ev, stop,
741 						     scan_info);
742 		else
743 			pr_debug("%s:entry too old\n", __func__);
744 
745 		if (stop - ev <= IW_EV_ADDR_LEN) {
746 			ret = -E2BIG;
747 			goto out;
748 		}
749 	}
750 
751 	wrqu->data.length = ev - extra;
752 	wrqu->data.flags = 0;
753 out:
754 	mutex_unlock(&wl->scan_lock);
755 	pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
756 	return ret;
757 }
758 
759 #ifdef DEBUG
760 static void scan_list_dump(struct gelic_wl_info *wl)
761 {
762 	struct gelic_wl_scan_info *scan_info;
763 	int i;
764 
765 	i = 0;
766 	list_for_each_entry(scan_info, &wl->network_list, list) {
767 		pr_debug("%s: item %d\n", __func__, i++);
768 		pr_debug("valid=%d eurusindex=%d last=%lx\n",
769 			 scan_info->valid, scan_info->eurus_index,
770 			 scan_info->last_scanned);
771 		pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
772 			 scan_info->rate_len, scan_info->rate_ext_len,
773 			 scan_info->essid_len);
774 		/* -- */
775 		pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
776 		pr_debug("essid=%s\n", scan_info->hwinfo->essid);
777 	}
778 }
779 #endif
780 
781 static int gelic_wl_set_auth(struct net_device *netdev,
782 			     struct iw_request_info *info,
783 			     union iwreq_data *data, char *extra)
784 {
785 	struct iw_param *param = &data->param;
786 	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
787 	unsigned long irqflag;
788 	int ret = 0;
789 
790 	pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
791 	spin_lock_irqsave(&wl->lock, irqflag);
792 	switch (param->flags & IW_AUTH_INDEX) {
793 	case IW_AUTH_WPA_VERSION:
794 		if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
795 			pr_debug("%s: NO WPA selected\n", __func__);
796 			wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
797 			wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
798 			wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
799 		}
800 		if (param->value & IW_AUTH_WPA_VERSION_WPA) {
801 			pr_debug("%s: WPA version 1 selected\n", __func__);
802 			wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
803 			wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
804 			wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
805 			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
806 		}
807 		if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
808 			/*
809 			 * As the hypervisor may not tell the cipher
810 			 * information of the AP if it is WPA2,
811 			 * you will not decide suitable cipher from
812 			 * its beacon.
813 			 * You should have knowledge about the AP's
814 			 * cipher information in other method prior to
815 			 * the association.
816 			 */
817 			if (!precise_ie())
818 				pr_info("%s: WPA2 may not work\n", __func__);
819 			if (wpa2_capable()) {
820 				wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
821 				wl->group_cipher_method = GELIC_WL_CIPHER_AES;
822 				wl->pairwise_cipher_method =
823 					GELIC_WL_CIPHER_AES;
824 				wl->auth_method = GELIC_EURUS_AUTH_OPEN;
825 			} else
826 				ret = -EINVAL;
827 		}
828 		break;
829 
830 	case IW_AUTH_CIPHER_PAIRWISE:
831 		if (param->value &
832 		    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
833 			pr_debug("%s: WEP selected\n", __func__);
834 			wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
835 		}
836 		if (param->value & IW_AUTH_CIPHER_TKIP) {
837 			pr_debug("%s: TKIP selected\n", __func__);
838 			wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
839 		}
840 		if (param->value & IW_AUTH_CIPHER_CCMP) {
841 			pr_debug("%s: CCMP selected\n", __func__);
842 			wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
843 		}
844 		if (param->value & IW_AUTH_CIPHER_NONE) {
845 			pr_debug("%s: no auth selected\n", __func__);
846 			wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
847 		}
848 		break;
849 	case IW_AUTH_CIPHER_GROUP:
850 		if (param->value &
851 		    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
852 			pr_debug("%s: WEP selected\n", __func__);
853 			wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
854 		}
855 		if (param->value & IW_AUTH_CIPHER_TKIP) {
856 			pr_debug("%s: TKIP selected\n", __func__);
857 			wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
858 		}
859 		if (param->value & IW_AUTH_CIPHER_CCMP) {
860 			pr_debug("%s: CCMP selected\n", __func__);
861 			wl->group_cipher_method = GELIC_WL_CIPHER_AES;
862 		}
863 		if (param->value & IW_AUTH_CIPHER_NONE) {
864 			pr_debug("%s: no auth selected\n", __func__);
865 			wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
866 		}
867 		break;
868 	case IW_AUTH_80211_AUTH_ALG:
869 		if (param->value & IW_AUTH_ALG_SHARED_KEY) {
870 			pr_debug("%s: shared key specified\n", __func__);
871 			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
872 		} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
873 			pr_debug("%s: open system specified\n", __func__);
874 			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
875 		} else
876 			ret = -EINVAL;
877 		break;
878 
879 	case IW_AUTH_WPA_ENABLED:
880 		if (param->value) {
881 			pr_debug("%s: WPA enabled\n", __func__);
882 			wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
883 		} else {
884 			pr_debug("%s: WPA disabled\n", __func__);
885 			wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
886 		}
887 		break;
888 
889 	case IW_AUTH_KEY_MGMT:
890 		if (param->value & IW_AUTH_KEY_MGMT_PSK)
891 			break;
892 		/* intentionally fall through */
893 	default:
894 		ret = -EOPNOTSUPP;
895 		break;
896 	}
897 
898 	if (!ret)
899 		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
900 
901 	spin_unlock_irqrestore(&wl->lock, irqflag);
902 	pr_debug("%s: -> %d\n", __func__, ret);
903 	return ret;
904 }
905 
906 static int gelic_wl_get_auth(struct net_device *netdev,
907 			     struct iw_request_info *info,
908 			     union iwreq_data *iwreq, char *extra)
909 {
910 	struct iw_param *param = &iwreq->param;
911 	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
912 	unsigned long irqflag;
913 	int ret = 0;
914 
915 	pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
916 	spin_lock_irqsave(&wl->lock, irqflag);
917 	switch (param->flags & IW_AUTH_INDEX) {
918 	case IW_AUTH_WPA_VERSION:
919 		switch (wl->wpa_level) {
920 		case GELIC_WL_WPA_LEVEL_WPA:
921 			param->value |= IW_AUTH_WPA_VERSION_WPA;
922 			break;
923 		case GELIC_WL_WPA_LEVEL_WPA2:
924 			param->value |= IW_AUTH_WPA_VERSION_WPA2;
925 			break;
926 		default:
927 			param->value |= IW_AUTH_WPA_VERSION_DISABLED;
928 		}
929 		break;
930 
931 	case IW_AUTH_80211_AUTH_ALG:
932 		if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
933 			param->value = IW_AUTH_ALG_SHARED_KEY;
934 		else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
935 			param->value = IW_AUTH_ALG_OPEN_SYSTEM;
936 		break;
937 
938 	case IW_AUTH_WPA_ENABLED:
939 		switch (wl->wpa_level) {
940 		case GELIC_WL_WPA_LEVEL_WPA:
941 		case GELIC_WL_WPA_LEVEL_WPA2:
942 			param->value = 1;
943 			break;
944 		default:
945 			param->value = 0;
946 			break;
947 		}
948 		break;
949 	default:
950 		ret = -EOPNOTSUPP;
951 	}
952 
953 	spin_unlock_irqrestore(&wl->lock, irqflag);
954 	pr_debug("%s: -> %d\n", __func__, ret);
955 	return ret;
956 }
957 
958 /* SIOC{S,G}IWESSID */
959 static int gelic_wl_set_essid(struct net_device *netdev,
960 			      struct iw_request_info *info,
961 			      union iwreq_data *data, char *extra)
962 {
963 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
964 	unsigned long irqflag;
965 
966 	pr_debug("%s: <- l=%d f=%d\n", __func__,
967 		 data->essid.length, data->essid.flags);
968 	if (IW_ESSID_MAX_SIZE < data->essid.length)
969 		return -EINVAL;
970 
971 	spin_lock_irqsave(&wl->lock, irqflag);
972 	if (data->essid.flags) {
973 		wl->essid_len = data->essid.length;
974 		memcpy(wl->essid, extra, wl->essid_len);
975 		pr_debug("%s: essid = '%s'\n", __func__, extra);
976 		set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
977 	} else {
978 		pr_debug("%s: ESSID any\n", __func__);
979 		clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
980 	}
981 	set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
982 	spin_unlock_irqrestore(&wl->lock, irqflag);
983 
984 
985 	gelic_wl_try_associate(netdev); /* FIXME */
986 	pr_debug("%s: ->\n", __func__);
987 	return 0;
988 }
989 
990 static int gelic_wl_get_essid(struct net_device *netdev,
991 			      struct iw_request_info *info,
992 			      union iwreq_data *data, char *extra)
993 {
994 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
995 	unsigned long irqflag;
996 
997 	pr_debug("%s: <-\n", __func__);
998 	mutex_lock(&wl->assoc_stat_lock);
999 	spin_lock_irqsave(&wl->lock, irqflag);
1000 	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
1001 	    wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1002 		memcpy(extra, wl->essid, wl->essid_len);
1003 		data->essid.length = wl->essid_len;
1004 		data->essid.flags = 1;
1005 	} else
1006 		data->essid.flags = 0;
1007 
1008 	mutex_unlock(&wl->assoc_stat_lock);
1009 	spin_unlock_irqrestore(&wl->lock, irqflag);
1010 	pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
1011 
1012 	return 0;
1013 }
1014 
1015 /* SIO{S,G}IWENCODE */
1016 static int gelic_wl_set_encode(struct net_device *netdev,
1017 			       struct iw_request_info *info,
1018 			       union iwreq_data *data, char *extra)
1019 {
1020 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1021 	struct iw_point *enc = &data->encoding;
1022 	__u16 flags;
1023 	unsigned long irqflag;
1024 	int key_index, index_specified;
1025 	int ret = 0;
1026 
1027 	pr_debug("%s: <-\n", __func__);
1028 	flags = enc->flags & IW_ENCODE_FLAGS;
1029 	key_index = enc->flags & IW_ENCODE_INDEX;
1030 
1031 	pr_debug("%s: key_index = %d\n", __func__, key_index);
1032 	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1033 	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1034 
1035 	if (GELIC_WEP_KEYS < key_index)
1036 		return -EINVAL;
1037 
1038 	spin_lock_irqsave(&wl->lock, irqflag);
1039 	if (key_index) {
1040 		index_specified = 1;
1041 		key_index--;
1042 	} else {
1043 		index_specified = 0;
1044 		key_index = wl->current_key;
1045 	}
1046 
1047 	if (flags & IW_ENCODE_NOKEY) {
1048 		/* if just IW_ENCODE_NOKEY, change current key index */
1049 		if (!flags && index_specified) {
1050 			wl->current_key = key_index;
1051 			goto done;
1052 		}
1053 
1054 		if (flags & IW_ENCODE_DISABLED) {
1055 			if (!index_specified) {
1056 				/* disable encryption */
1057 				wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1058 				wl->pairwise_cipher_method =
1059 					GELIC_WL_CIPHER_NONE;
1060 				/* invalidate all key */
1061 				wl->key_enabled = 0;
1062 			} else
1063 				clear_bit(key_index, &wl->key_enabled);
1064 		}
1065 
1066 		if (flags & IW_ENCODE_OPEN)
1067 			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1068 		if (flags & IW_ENCODE_RESTRICTED) {
1069 			pr_info("%s: shared key mode enabled\n", __func__);
1070 			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1071 		}
1072 	} else {
1073 		if (IW_ENCODING_TOKEN_MAX < enc->length) {
1074 			ret = -EINVAL;
1075 			goto done;
1076 		}
1077 		wl->key_len[key_index] = enc->length;
1078 		memcpy(wl->key[key_index], extra, enc->length);
1079 		set_bit(key_index, &wl->key_enabled);
1080 		wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1081 		wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1082 	}
1083 	set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1084 done:
1085 	spin_unlock_irqrestore(&wl->lock, irqflag);
1086 	pr_debug("%s: ->\n", __func__);
1087 	return ret;
1088 }
1089 
1090 static int gelic_wl_get_encode(struct net_device *netdev,
1091 			       struct iw_request_info *info,
1092 			       union iwreq_data *data, char *extra)
1093 {
1094 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1095 	struct iw_point *enc = &data->encoding;
1096 	unsigned long irqflag;
1097 	unsigned int key_index, index_specified;
1098 	int ret = 0;
1099 
1100 	pr_debug("%s: <-\n", __func__);
1101 	key_index = enc->flags & IW_ENCODE_INDEX;
1102 	pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1103 		 enc->flags, enc->pointer, enc->length, extra);
1104 	if (GELIC_WEP_KEYS < key_index)
1105 		return -EINVAL;
1106 
1107 	spin_lock_irqsave(&wl->lock, irqflag);
1108 	if (key_index) {
1109 		index_specified = 1;
1110 		key_index--;
1111 	} else {
1112 		index_specified = 0;
1113 		key_index = wl->current_key;
1114 	}
1115 
1116 	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1117 		switch (wl->auth_method) {
1118 		case GELIC_EURUS_AUTH_OPEN:
1119 			enc->flags = IW_ENCODE_OPEN;
1120 			break;
1121 		case GELIC_EURUS_AUTH_SHARED:
1122 			enc->flags = IW_ENCODE_RESTRICTED;
1123 			break;
1124 		}
1125 	} else
1126 		enc->flags = IW_ENCODE_DISABLED;
1127 
1128 	if (test_bit(key_index, &wl->key_enabled)) {
1129 		if (enc->length < wl->key_len[key_index]) {
1130 			ret = -EINVAL;
1131 			goto done;
1132 		}
1133 		enc->length = wl->key_len[key_index];
1134 		memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1135 	} else {
1136 		enc->length = 0;
1137 		enc->flags |= IW_ENCODE_NOKEY;
1138 	}
1139 	enc->flags |= key_index + 1;
1140 	pr_debug("%s: -> flag=%x len=%d\n", __func__,
1141 		 enc->flags, enc->length);
1142 
1143 done:
1144 	spin_unlock_irqrestore(&wl->lock, irqflag);
1145 	return ret;
1146 }
1147 
1148 /* SIOC{S,G}IWAP */
1149 static int gelic_wl_set_ap(struct net_device *netdev,
1150 			   struct iw_request_info *info,
1151 			   union iwreq_data *data, char *extra)
1152 {
1153 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1154 	unsigned long irqflag;
1155 
1156 	pr_debug("%s: <-\n", __func__);
1157 	if (data->ap_addr.sa_family != ARPHRD_ETHER)
1158 		return -EINVAL;
1159 
1160 	spin_lock_irqsave(&wl->lock, irqflag);
1161 	if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1162 		memcpy(wl->bssid, data->ap_addr.sa_data,
1163 		       ETH_ALEN);
1164 		set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1165 		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1166 		pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1167 	} else {
1168 		pr_debug("%s: clear bssid\n", __func__);
1169 		clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1170 		eth_zero_addr(wl->bssid);
1171 	}
1172 	spin_unlock_irqrestore(&wl->lock, irqflag);
1173 	pr_debug("%s: ->\n", __func__);
1174 	return 0;
1175 }
1176 
1177 static int gelic_wl_get_ap(struct net_device *netdev,
1178 			   struct iw_request_info *info,
1179 			   union iwreq_data *data, char *extra)
1180 {
1181 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1182 	unsigned long irqflag;
1183 
1184 	pr_debug("%s: <-\n", __func__);
1185 	mutex_lock(&wl->assoc_stat_lock);
1186 	spin_lock_irqsave(&wl->lock, irqflag);
1187 	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1188 		data->ap_addr.sa_family = ARPHRD_ETHER;
1189 		memcpy(data->ap_addr.sa_data, wl->active_bssid,
1190 		       ETH_ALEN);
1191 	} else
1192 		eth_zero_addr(data->ap_addr.sa_data);
1193 
1194 	spin_unlock_irqrestore(&wl->lock, irqflag);
1195 	mutex_unlock(&wl->assoc_stat_lock);
1196 	pr_debug("%s: ->\n", __func__);
1197 	return 0;
1198 }
1199 
1200 /* SIOC{S,G}IWENCODEEXT */
1201 static int gelic_wl_set_encodeext(struct net_device *netdev,
1202 				  struct iw_request_info *info,
1203 				  union iwreq_data *data, char *extra)
1204 {
1205 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1206 	struct iw_point *enc = &data->encoding;
1207 	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1208 	__u16 alg;
1209 	__u16 flags;
1210 	unsigned long irqflag;
1211 	int key_index;
1212 	int ret = 0;
1213 
1214 	pr_debug("%s: <-\n", __func__);
1215 	flags = enc->flags & IW_ENCODE_FLAGS;
1216 	alg = ext->alg;
1217 	key_index = enc->flags & IW_ENCODE_INDEX;
1218 
1219 	pr_debug("%s: key_index = %d\n", __func__, key_index);
1220 	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1221 	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1222 	pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1223 	pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1224 
1225 	if (GELIC_WEP_KEYS < key_index)
1226 		return -EINVAL;
1227 
1228 	spin_lock_irqsave(&wl->lock, irqflag);
1229 	if (key_index)
1230 		key_index--;
1231 	else
1232 		key_index = wl->current_key;
1233 
1234 	if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1235 		/* reques to change default key index */
1236 		pr_debug("%s: request to change default key to %d\n",
1237 			 __func__, key_index);
1238 		wl->current_key = key_index;
1239 		goto done;
1240 	}
1241 
1242 	if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1243 		pr_debug("%s: alg disabled\n", __func__);
1244 		wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1245 		wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1246 		wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1247 		wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1248 	} else if (alg == IW_ENCODE_ALG_WEP) {
1249 		pr_debug("%s: WEP requested\n", __func__);
1250 		if (flags & IW_ENCODE_OPEN) {
1251 			pr_debug("%s: open key mode\n", __func__);
1252 			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1253 		}
1254 		if (flags & IW_ENCODE_RESTRICTED) {
1255 			pr_debug("%s: shared key mode\n", __func__);
1256 			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1257 		}
1258 		if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1259 			pr_info("%s: key is too long %d\n", __func__,
1260 				ext->key_len);
1261 			ret = -EINVAL;
1262 			goto done;
1263 		}
1264 		/* OK, update the key */
1265 		wl->key_len[key_index] = ext->key_len;
1266 		memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1267 		memcpy(wl->key[key_index], ext->key, ext->key_len);
1268 		set_bit(key_index, &wl->key_enabled);
1269 		/* remember wep info changed */
1270 		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1271 	} else if (alg == IW_ENCODE_ALG_PMK) {
1272 		if (ext->key_len != WPA_PSK_LEN) {
1273 			pr_err("%s: PSK length wrong %d\n", __func__,
1274 			       ext->key_len);
1275 			ret = -EINVAL;
1276 			goto done;
1277 		}
1278 		memset(wl->psk, 0, sizeof(wl->psk));
1279 		memcpy(wl->psk, ext->key, ext->key_len);
1280 		wl->psk_len = ext->key_len;
1281 		wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1282 		/* remember PSK configured */
1283 		set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1284 	}
1285 done:
1286 	spin_unlock_irqrestore(&wl->lock, irqflag);
1287 	pr_debug("%s: ->\n", __func__);
1288 	return ret;
1289 }
1290 
1291 static int gelic_wl_get_encodeext(struct net_device *netdev,
1292 				  struct iw_request_info *info,
1293 				  union iwreq_data *data, char *extra)
1294 {
1295 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1296 	struct iw_point *enc = &data->encoding;
1297 	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1298 	unsigned long irqflag;
1299 	int key_index;
1300 	int ret = 0;
1301 	int max_key_len;
1302 
1303 	pr_debug("%s: <-\n", __func__);
1304 
1305 	max_key_len = enc->length - sizeof(struct iw_encode_ext);
1306 	if (max_key_len < 0)
1307 		return -EINVAL;
1308 	key_index = enc->flags & IW_ENCODE_INDEX;
1309 
1310 	pr_debug("%s: key_index = %d\n", __func__, key_index);
1311 	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1312 	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1313 
1314 	if (GELIC_WEP_KEYS < key_index)
1315 		return -EINVAL;
1316 
1317 	spin_lock_irqsave(&wl->lock, irqflag);
1318 	if (key_index)
1319 		key_index--;
1320 	else
1321 		key_index = wl->current_key;
1322 
1323 	memset(ext, 0, sizeof(struct iw_encode_ext));
1324 	switch (wl->group_cipher_method) {
1325 	case GELIC_WL_CIPHER_WEP:
1326 		ext->alg = IW_ENCODE_ALG_WEP;
1327 		enc->flags |= IW_ENCODE_ENABLED;
1328 		break;
1329 	case GELIC_WL_CIPHER_TKIP:
1330 		ext->alg = IW_ENCODE_ALG_TKIP;
1331 		enc->flags |= IW_ENCODE_ENABLED;
1332 		break;
1333 	case GELIC_WL_CIPHER_AES:
1334 		ext->alg = IW_ENCODE_ALG_CCMP;
1335 		enc->flags |= IW_ENCODE_ENABLED;
1336 		break;
1337 	case GELIC_WL_CIPHER_NONE:
1338 	default:
1339 		ext->alg = IW_ENCODE_ALG_NONE;
1340 		enc->flags |= IW_ENCODE_NOKEY;
1341 		break;
1342 	}
1343 
1344 	if (!(enc->flags & IW_ENCODE_NOKEY)) {
1345 		if (max_key_len < wl->key_len[key_index]) {
1346 			ret = -E2BIG;
1347 			goto out;
1348 		}
1349 		if (test_bit(key_index, &wl->key_enabled))
1350 			memcpy(ext->key, wl->key[key_index],
1351 			       wl->key_len[key_index]);
1352 		else
1353 			pr_debug("%s: disabled key requested ix=%d\n",
1354 				 __func__, key_index);
1355 	}
1356 out:
1357 	spin_unlock_irqrestore(&wl->lock, irqflag);
1358 	pr_debug("%s: ->\n", __func__);
1359 	return ret;
1360 }
1361 /* SIOC{S,G}IWMODE */
1362 static int gelic_wl_set_mode(struct net_device *netdev,
1363 			     struct iw_request_info *info,
1364 			     union iwreq_data *data, char *extra)
1365 {
1366 	__u32 mode = data->mode;
1367 	int ret;
1368 
1369 	pr_debug("%s: <-\n", __func__);
1370 	if (mode == IW_MODE_INFRA)
1371 		ret = 0;
1372 	else
1373 		ret = -EOPNOTSUPP;
1374 	pr_debug("%s: -> %d\n", __func__, ret);
1375 	return ret;
1376 }
1377 
1378 static int gelic_wl_get_mode(struct net_device *netdev,
1379 			     struct iw_request_info *info,
1380 			     union iwreq_data *data, char *extra)
1381 {
1382 	__u32 *mode = &data->mode;
1383 	pr_debug("%s: <-\n", __func__);
1384 	*mode = IW_MODE_INFRA;
1385 	pr_debug("%s: ->\n", __func__);
1386 	return 0;
1387 }
1388 
1389 /* SIOCGIWNICKN */
1390 static int gelic_wl_get_nick(struct net_device *net_dev,
1391 				  struct iw_request_info *info,
1392 				  union iwreq_data *data, char *extra)
1393 {
1394 	strcpy(extra, "gelic_wl");
1395 	data->data.length = strlen(extra);
1396 	data->data.flags = 1;
1397 	return 0;
1398 }
1399 
1400 
1401 /* --- */
1402 
1403 static struct iw_statistics *gelic_wl_get_wireless_stats(
1404 	struct net_device *netdev)
1405 {
1406 
1407 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1408 	struct gelic_eurus_cmd *cmd;
1409 	struct iw_statistics *is;
1410 	struct gelic_eurus_rssi_info *rssi;
1411 	void *buf;
1412 
1413 	pr_debug("%s: <-\n", __func__);
1414 
1415 	buf = (void *)__get_free_page(GFP_KERNEL);
1416 	if (!buf)
1417 		return NULL;
1418 
1419 	is = &wl->iwstat;
1420 	memset(is, 0, sizeof(*is));
1421 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1422 				   buf, sizeof(*rssi));
1423 	if (cmd && !cmd->status && !cmd->cmd_status) {
1424 		rssi = buf;
1425 		is->qual.level = be16_to_cpu(rssi->rssi);
1426 		is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1427 			IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1428 	} else
1429 		/* not associated */
1430 		is->qual.updated = IW_QUAL_ALL_INVALID;
1431 
1432 	kfree(cmd);
1433 	free_page((unsigned long)buf);
1434 	pr_debug("%s: ->\n", __func__);
1435 	return is;
1436 }
1437 
1438 /*
1439  *  scanning helpers
1440  */
1441 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1442 			       u8 *essid, size_t essid_len)
1443 {
1444 	struct gelic_eurus_cmd *cmd;
1445 	int ret = 0;
1446 	void *buf = NULL;
1447 	size_t len;
1448 
1449 	pr_debug("%s: <- always=%d\n", __func__, always_scan);
1450 	if (mutex_lock_interruptible(&wl->scan_lock))
1451 		return -ERESTARTSYS;
1452 
1453 	/*
1454 	 * If already a scan in progress, do not trigger more
1455 	 */
1456 	if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1457 		pr_debug("%s: scanning now\n", __func__);
1458 		goto out;
1459 	}
1460 
1461 	init_completion(&wl->scan_done);
1462 	/*
1463 	 * If we have already a bss list, don't try to get new
1464 	 * unless we are doing an ESSID scan
1465 	 */
1466 	if ((!essid_len && !always_scan)
1467 	    && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1468 		pr_debug("%s: already has the list\n", __func__);
1469 		complete(&wl->scan_done);
1470 		goto out;
1471 	}
1472 
1473 	/* ESSID scan ? */
1474 	if (essid_len && essid) {
1475 		buf = (void *)__get_free_page(GFP_KERNEL);
1476 		if (!buf) {
1477 			ret = -ENOMEM;
1478 			goto out;
1479 		}
1480 		len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1481 		memset(buf, 0, len);
1482 		memcpy(buf, essid, essid_len);
1483 		pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1484 	} else
1485 		len = 0;
1486 
1487 	/*
1488 	 * issue start scan request
1489 	 */
1490 	wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1491 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1492 				   buf, len);
1493 	if (!cmd || cmd->status || cmd->cmd_status) {
1494 		wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1495 		complete(&wl->scan_done);
1496 		ret = -ENOMEM;
1497 		goto out;
1498 	}
1499 	kfree(cmd);
1500 out:
1501 	free_page((unsigned long)buf);
1502 	mutex_unlock(&wl->scan_lock);
1503 	pr_debug("%s: ->\n", __func__);
1504 	return ret;
1505 }
1506 
1507 /*
1508  * retrieve scan result from the chip (hypervisor)
1509  * this function is invoked by schedule work.
1510  */
1511 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1512 {
1513 	struct gelic_eurus_cmd *cmd = NULL;
1514 	struct gelic_wl_scan_info *target, *tmp;
1515 	struct gelic_wl_scan_info *oldest = NULL;
1516 	struct gelic_eurus_scan_info *scan_info;
1517 	unsigned int scan_info_size;
1518 	union iwreq_data data;
1519 	unsigned long this_time = jiffies;
1520 	unsigned int data_len, i, found, r;
1521 	void *buf;
1522 
1523 	pr_debug("%s:start\n", __func__);
1524 	mutex_lock(&wl->scan_lock);
1525 
1526 	buf = (void *)__get_free_page(GFP_KERNEL);
1527 	if (!buf) {
1528 		pr_info("%s: scan buffer alloc failed\n", __func__);
1529 		goto out;
1530 	}
1531 
1532 	if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1533 		/*
1534 		 * stop() may be called while scanning, ignore result
1535 		 */
1536 		pr_debug("%s: scan complete when stat != scanning(%d)\n",
1537 			 __func__, wl->scan_stat);
1538 		goto out;
1539 	}
1540 
1541 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1542 				   buf, PAGE_SIZE);
1543 	if (!cmd || cmd->status || cmd->cmd_status) {
1544 		wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1545 		pr_info("%s:cmd failed\n", __func__);
1546 		kfree(cmd);
1547 		goto out;
1548 	}
1549 	data_len = cmd->size;
1550 	pr_debug("%s: data_len = %d\n", __func__, data_len);
1551 	kfree(cmd);
1552 
1553 	/* OK, bss list retrieved */
1554 	wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1555 
1556 	/* mark all entries are old */
1557 	list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1558 		target->valid = 0;
1559 		/* expire too old entries */
1560 		if (time_before(target->last_scanned + wl->scan_age,
1561 				this_time)) {
1562 			kfree(target->hwinfo);
1563 			target->hwinfo = NULL;
1564 			list_move_tail(&target->list, &wl->network_free_list);
1565 		}
1566 	}
1567 
1568 	/* put them in the network_list */
1569 	for (i = 0, scan_info_size = 0, scan_info = buf;
1570 	     scan_info_size < data_len;
1571 	     i++, scan_info_size += be16_to_cpu(scan_info->size),
1572 	     scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1573 		pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1574 			 be16_to_cpu(scan_info->size),
1575 			 &scan_info->bssid[2], scan_info);
1576 
1577 		/*
1578 		 * The wireless firmware may return invalid channel 0 and/or
1579 		 * invalid rate if the AP emits zero length SSID ie. As this
1580 		 * scan information is useless, ignore it
1581 		 */
1582 		if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1583 			pr_debug("%s: invalid scan info\n", __func__);
1584 			continue;
1585 		}
1586 
1587 		found = 0;
1588 		oldest = NULL;
1589 		list_for_each_entry(target, &wl->network_list, list) {
1590 			if (ether_addr_equal(&target->hwinfo->bssid[2],
1591 					     &scan_info->bssid[2])) {
1592 				found = 1;
1593 				pr_debug("%s: same BBS found scanned list\n",
1594 					 __func__);
1595 				break;
1596 			}
1597 			if (!oldest ||
1598 			    (target->last_scanned < oldest->last_scanned))
1599 				oldest = target;
1600 		}
1601 
1602 		if (!found) {
1603 			/* not found in the list */
1604 			if (list_empty(&wl->network_free_list)) {
1605 				/* expire oldest */
1606 				target = oldest;
1607 			} else {
1608 				target = list_entry(wl->network_free_list.next,
1609 						    struct gelic_wl_scan_info,
1610 						    list);
1611 			}
1612 		}
1613 
1614 		/* update the item */
1615 		target->last_scanned = this_time;
1616 		target->valid = 1;
1617 		target->eurus_index = i;
1618 		kfree(target->hwinfo);
1619 		target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1620 					 GFP_KERNEL);
1621 		if (!target->hwinfo)
1622 			continue;
1623 
1624 		/* copy hw scan info */
1625 		memcpy(target->hwinfo, scan_info, scan_info->size);
1626 		target->essid_len = strnlen(scan_info->essid,
1627 					    sizeof(scan_info->essid));
1628 		target->rate_len = 0;
1629 		for (r = 0; r < 12; r++)
1630 			if (scan_info->rate[r])
1631 				target->rate_len++;
1632 		if (8 < target->rate_len)
1633 			pr_info("%s: AP returns %d rates\n", __func__,
1634 				target->rate_len);
1635 		target->rate_ext_len = 0;
1636 		for (r = 0; r < 16; r++)
1637 			if (scan_info->ext_rate[r])
1638 				target->rate_ext_len++;
1639 		list_move_tail(&target->list, &wl->network_list);
1640 	}
1641 	memset(&data, 0, sizeof(data));
1642 	wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1643 			    NULL);
1644 out:
1645 	free_page((unsigned long)buf);
1646 	complete(&wl->scan_done);
1647 	mutex_unlock(&wl->scan_lock);
1648 	pr_debug("%s:end\n", __func__);
1649 }
1650 
1651 /*
1652  * Select an appropriate bss from current scan list regarding
1653  * current settings from userspace.
1654  * The caller must hold wl->scan_lock,
1655  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1656  */
1657 static void update_best(struct gelic_wl_scan_info **best,
1658 			struct gelic_wl_scan_info *candid,
1659 			int *best_weight,
1660 			int *weight)
1661 {
1662 	if (*best_weight < ++(*weight)) {
1663 		*best_weight = *weight;
1664 		*best = candid;
1665 	}
1666 }
1667 
1668 static
1669 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1670 {
1671 	struct gelic_wl_scan_info *scan_info;
1672 	struct gelic_wl_scan_info *best_bss;
1673 	int weight, best_weight;
1674 	u16 security;
1675 
1676 	pr_debug("%s: <-\n", __func__);
1677 
1678 	best_bss = NULL;
1679 	best_weight = 0;
1680 
1681 	list_for_each_entry(scan_info, &wl->network_list, list) {
1682 		pr_debug("%s: station %p\n", __func__, scan_info);
1683 
1684 		if (!scan_info->valid) {
1685 			pr_debug("%s: station invalid\n", __func__);
1686 			continue;
1687 		}
1688 
1689 		/* If bss specified, check it only */
1690 		if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1691 			if (ether_addr_equal(&scan_info->hwinfo->bssid[2],
1692 					     wl->bssid)) {
1693 				best_bss = scan_info;
1694 				pr_debug("%s: bssid matched\n", __func__);
1695 				break;
1696 			} else {
1697 				pr_debug("%s: bssid unmached\n", __func__);
1698 				continue;
1699 			}
1700 		}
1701 
1702 		weight = 0;
1703 
1704 		/* security */
1705 		security = be16_to_cpu(scan_info->hwinfo->security) &
1706 			GELIC_EURUS_SCAN_SEC_MASK;
1707 		if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1708 			if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1709 				update_best(&best_bss, scan_info,
1710 					    &best_weight, &weight);
1711 			else
1712 				continue;
1713 		} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1714 			if (security == GELIC_EURUS_SCAN_SEC_WPA)
1715 				update_best(&best_bss, scan_info,
1716 					    &best_weight, &weight);
1717 			else
1718 				continue;
1719 		} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1720 			   wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1721 			if (security == GELIC_EURUS_SCAN_SEC_WEP)
1722 				update_best(&best_bss, scan_info,
1723 					    &best_weight, &weight);
1724 			else
1725 				continue;
1726 		}
1727 
1728 		/* If ESSID is set, check it */
1729 		if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1730 			if ((scan_info->essid_len == wl->essid_len) &&
1731 			    !strncmp(wl->essid,
1732 				     scan_info->hwinfo->essid,
1733 				     scan_info->essid_len))
1734 				update_best(&best_bss, scan_info,
1735 					    &best_weight, &weight);
1736 			else
1737 				continue;
1738 		}
1739 	}
1740 
1741 #ifdef DEBUG
1742 	pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1743 	if (best_bss) {
1744 		pr_debug("%s:addr=%pM\n", __func__,
1745 			 &best_bss->hwinfo->bssid[2]);
1746 	}
1747 #endif
1748 	return best_bss;
1749 }
1750 
1751 /*
1752  * Setup WEP configuration to the chip
1753  * The caller must hold wl->scan_lock,
1754  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1755  */
1756 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1757 {
1758 	unsigned int i;
1759 	struct gelic_eurus_wep_cfg *wep;
1760 	struct gelic_eurus_cmd *cmd;
1761 	int wep104 = 0;
1762 	int have_key = 0;
1763 	int ret = 0;
1764 
1765 	pr_debug("%s: <-\n", __func__);
1766 	/* we can assume no one should uses the buffer */
1767 	wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1768 	if (!wep)
1769 		return -ENOMEM;
1770 
1771 	memset(wep, 0, sizeof(*wep));
1772 
1773 	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1774 		pr_debug("%s: WEP mode\n", __func__);
1775 		for (i = 0; i < GELIC_WEP_KEYS; i++) {
1776 			if (!test_bit(i, &wl->key_enabled))
1777 				continue;
1778 
1779 			pr_debug("%s: key#%d enabled\n", __func__, i);
1780 			have_key = 1;
1781 			if (wl->key_len[i] == 13)
1782 				wep104 = 1;
1783 			else if (wl->key_len[i] != 5) {
1784 				pr_info("%s: wrong wep key[%d]=%d\n",
1785 					__func__, i, wl->key_len[i]);
1786 				ret = -EINVAL;
1787 				goto out;
1788 			}
1789 			memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1790 		}
1791 
1792 		if (!have_key) {
1793 			pr_info("%s: all wep key disabled\n", __func__);
1794 			ret = -EINVAL;
1795 			goto out;
1796 		}
1797 
1798 		if (wep104) {
1799 			pr_debug("%s: 104bit key\n", __func__);
1800 			wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1801 		} else {
1802 			pr_debug("%s: 40bit key\n", __func__);
1803 			wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1804 		}
1805 	} else {
1806 		pr_debug("%s: NO encryption\n", __func__);
1807 		wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1808 	}
1809 
1810 	/* issue wep setup */
1811 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1812 				   wep, sizeof(*wep));
1813 	if (!cmd)
1814 		ret = -ENOMEM;
1815 	else if (cmd->status || cmd->cmd_status)
1816 		ret = -ENXIO;
1817 
1818 	kfree(cmd);
1819 out:
1820 	free_page((unsigned long)wep);
1821 	pr_debug("%s: ->\n", __func__);
1822 	return ret;
1823 }
1824 
1825 #ifdef DEBUG
1826 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1827 {
1828 	switch (sec) {
1829 	case GELIC_EURUS_WPA_SEC_NONE:
1830 		return "NONE";
1831 	case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1832 		return "WPA_TKIP_TKIP";
1833 	case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1834 		return "WPA_TKIP_AES";
1835 	case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1836 		return "WPA_AES_AES";
1837 	case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1838 		return "WPA2_TKIP_TKIP";
1839 	case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1840 		return "WPA2_TKIP_AES";
1841 	case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1842 		return "WPA2_AES_AES";
1843 	}
1844 	return "";
1845 };
1846 #endif
1847 
1848 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1849 {
1850 	struct gelic_eurus_wpa_cfg *wpa;
1851 	struct gelic_eurus_cmd *cmd;
1852 	u16 security;
1853 	int ret = 0;
1854 
1855 	pr_debug("%s: <-\n", __func__);
1856 	/* we can assume no one should uses the buffer */
1857 	wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1858 	if (!wpa)
1859 		return -ENOMEM;
1860 
1861 	memset(wpa, 0, sizeof(*wpa));
1862 
1863 	if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1864 		pr_info("%s: PSK not configured yet\n", __func__);
1865 
1866 	/* copy key */
1867 	memcpy(wpa->psk, wl->psk, wl->psk_len);
1868 
1869 	/* set security level */
1870 	if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1871 		if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1872 			security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1873 		} else {
1874 			if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1875 			    precise_ie())
1876 				security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1877 			else
1878 				security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1879 		}
1880 	} else {
1881 		if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1882 			security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1883 		} else {
1884 			if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1885 			    precise_ie())
1886 				security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1887 			else
1888 				security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1889 		}
1890 	}
1891 	wpa->security = cpu_to_be16(security);
1892 
1893 	/* PSK type */
1894 	wpa->psk_type = cpu_to_be16(wl->psk_type);
1895 #ifdef DEBUG
1896 	pr_debug("%s: sec=%s psktype=%s\n", __func__,
1897 		 wpasecstr(wpa->security),
1898 		 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1899 		 "BIN" : "passphrase");
1900 #if 0
1901 	/*
1902 	 * don't enable here if you plan to submit
1903 	 * the debug log because this dumps your precious
1904 	 * passphrase/key.
1905 	 */
1906 	pr_debug("%s: psk=%s\n", __func__,
1907 		 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1908 		 "N/A" : wpa->psk);
1909 #endif
1910 #endif
1911 	/* issue wpa setup */
1912 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1913 				   wpa, sizeof(*wpa));
1914 	if (!cmd)
1915 		ret = -ENOMEM;
1916 	else if (cmd->status || cmd->cmd_status)
1917 		ret = -ENXIO;
1918 	kfree(cmd);
1919 	free_page((unsigned long)wpa);
1920 	pr_debug("%s: --> %d\n", __func__, ret);
1921 	return ret;
1922 }
1923 
1924 /*
1925  * Start association. caller must hold assoc_stat_lock
1926  */
1927 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1928 				  struct gelic_wl_scan_info *bss)
1929 {
1930 	struct gelic_eurus_cmd *cmd;
1931 	struct gelic_eurus_common_cfg *common;
1932 	int ret = 0;
1933 	unsigned long rc;
1934 
1935 	pr_debug("%s: <-\n", __func__);
1936 
1937 	/* do common config */
1938 	common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1939 	if (!common)
1940 		return -ENOMEM;
1941 
1942 	memset(common, 0, sizeof(*common));
1943 	common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1944 	common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1945 
1946 	common->scan_index = cpu_to_be16(bss->eurus_index);
1947 	switch (wl->auth_method) {
1948 	case GELIC_EURUS_AUTH_OPEN:
1949 		common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1950 		break;
1951 	case GELIC_EURUS_AUTH_SHARED:
1952 		common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1953 		break;
1954 	}
1955 
1956 #ifdef DEBUG
1957 	scan_list_dump(wl);
1958 #endif
1959 	pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1960 		 be16_to_cpu(common->scan_index),
1961 		 be16_to_cpu(common->bss_type),
1962 		 be16_to_cpu(common->auth_method));
1963 
1964 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1965 				   common, sizeof(*common));
1966 	if (!cmd || cmd->status || cmd->cmd_status) {
1967 		ret = -ENOMEM;
1968 		kfree(cmd);
1969 		goto out;
1970 	}
1971 	kfree(cmd);
1972 
1973 	/* WEP/WPA */
1974 	switch (wl->wpa_level) {
1975 	case GELIC_WL_WPA_LEVEL_NONE:
1976 		/* If WEP or no security, setup WEP config */
1977 		ret = gelic_wl_do_wep_setup(wl);
1978 		break;
1979 	case GELIC_WL_WPA_LEVEL_WPA:
1980 	case GELIC_WL_WPA_LEVEL_WPA2:
1981 		ret = gelic_wl_do_wpa_setup(wl);
1982 		break;
1983 	}
1984 
1985 	if (ret) {
1986 		pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1987 			 ret);
1988 		ret = -EPERM;
1989 		gelic_wl_send_iwap_event(wl, NULL);
1990 		goto out;
1991 	}
1992 
1993 	/* start association */
1994 	init_completion(&wl->assoc_done);
1995 	wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
1996 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
1997 				   NULL, 0);
1998 	if (!cmd || cmd->status || cmd->cmd_status) {
1999 		pr_debug("%s: assoc request failed\n", __func__);
2000 		wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2001 		kfree(cmd);
2002 		ret = -ENOMEM;
2003 		gelic_wl_send_iwap_event(wl, NULL);
2004 		goto out;
2005 	}
2006 	kfree(cmd);
2007 
2008 	/* wait for connected event */
2009 	rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2010 
2011 	if (!rc) {
2012 		/* timeouted.  Maybe key or cyrpt mode is wrong */
2013 		pr_info("%s: connect timeout\n", __func__);
2014 		cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2015 					   NULL, 0);
2016 		kfree(cmd);
2017 		wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2018 		gelic_wl_send_iwap_event(wl, NULL);
2019 		ret = -ENXIO;
2020 	} else {
2021 		wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2022 		/* copy bssid */
2023 		memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2024 
2025 		/* send connect event */
2026 		gelic_wl_send_iwap_event(wl, wl->active_bssid);
2027 		pr_info("%s: connected\n", __func__);
2028 	}
2029 out:
2030 	free_page((unsigned long)common);
2031 	pr_debug("%s: ->\n", __func__);
2032 	return ret;
2033 }
2034 
2035 /*
2036  * connected event
2037  */
2038 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2039 				     u64 event)
2040 {
2041 	u64 desired_event = 0;
2042 
2043 	switch (wl->wpa_level) {
2044 	case GELIC_WL_WPA_LEVEL_NONE:
2045 		desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2046 		break;
2047 	case GELIC_WL_WPA_LEVEL_WPA:
2048 	case GELIC_WL_WPA_LEVEL_WPA2:
2049 		desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2050 		break;
2051 	}
2052 
2053 	if (desired_event == event) {
2054 		pr_debug("%s: completed\n", __func__);
2055 		complete(&wl->assoc_done);
2056 		netif_carrier_on(port_to_netdev(wl_port(wl)));
2057 	} else
2058 		pr_debug("%s: event %#llx under wpa\n",
2059 				 __func__, event);
2060 }
2061 
2062 /*
2063  * disconnect event
2064  */
2065 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2066 				      u64 event)
2067 {
2068 	struct gelic_eurus_cmd *cmd;
2069 	int lock;
2070 
2071 	/*
2072 	 * If we fall here in the middle of association,
2073 	 * associate_bss() should be waiting for complation of
2074 	 * wl->assoc_done.
2075 	 * As it waits with timeout, just leave assoc_done
2076 	 * uncompleted, then it terminates with timeout
2077 	 */
2078 	if (!mutex_trylock(&wl->assoc_stat_lock)) {
2079 		pr_debug("%s: already locked\n", __func__);
2080 		lock = 0;
2081 	} else {
2082 		pr_debug("%s: obtain lock\n", __func__);
2083 		lock = 1;
2084 	}
2085 
2086 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2087 	kfree(cmd);
2088 
2089 	/* send disconnected event to the supplicant */
2090 	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2091 		gelic_wl_send_iwap_event(wl, NULL);
2092 
2093 	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2094 	netif_carrier_off(port_to_netdev(wl_port(wl)));
2095 
2096 	if (lock)
2097 		mutex_unlock(&wl->assoc_stat_lock);
2098 }
2099 /*
2100  * event worker
2101  */
2102 #ifdef DEBUG
2103 static const char *eventstr(enum gelic_lv1_wl_event event)
2104 {
2105 	static char buf[32];
2106 	char *ret;
2107 	if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2108 		ret = "EURUS_READY";
2109 	else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2110 		ret = "SCAN_COMPLETED";
2111 	else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2112 		ret = "DEAUTH";
2113 	else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2114 		ret = "BEACON_LOST";
2115 	else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2116 		ret = "CONNECTED";
2117 	else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2118 		ret = "WPA_CONNECTED";
2119 	else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2120 		ret = "WPA_ERROR";
2121 	else {
2122 		sprintf(buf, "Unknown(%#x)", event);
2123 		ret = buf;
2124 	}
2125 	return ret;
2126 }
2127 #else
2128 static const char *eventstr(enum gelic_lv1_wl_event event)
2129 {
2130 	return NULL;
2131 }
2132 #endif
2133 static void gelic_wl_event_worker(struct work_struct *work)
2134 {
2135 	struct gelic_wl_info *wl;
2136 	struct gelic_port *port;
2137 	u64 event, tmp;
2138 	int status;
2139 
2140 	pr_debug("%s:start\n", __func__);
2141 	wl = container_of(work, struct gelic_wl_info, event_work.work);
2142 	port = wl_port(wl);
2143 	while (1) {
2144 		status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2145 					 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2146 					 &event, &tmp);
2147 		if (status) {
2148 			if (status != LV1_NO_ENTRY)
2149 				pr_debug("%s:wlan event failed %d\n",
2150 					 __func__, status);
2151 			/* got all events */
2152 			pr_debug("%s:end\n", __func__);
2153 			return;
2154 		}
2155 		pr_debug("%s: event=%s\n", __func__, eventstr(event));
2156 		switch (event) {
2157 		case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2158 			gelic_wl_scan_complete_event(wl);
2159 			break;
2160 		case GELIC_LV1_WL_EVENT_BEACON_LOST:
2161 		case GELIC_LV1_WL_EVENT_DEAUTH:
2162 			gelic_wl_disconnect_event(wl, event);
2163 			break;
2164 		case GELIC_LV1_WL_EVENT_CONNECTED:
2165 		case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2166 			gelic_wl_connected_event(wl, event);
2167 			break;
2168 		default:
2169 			break;
2170 		}
2171 	} /* while */
2172 }
2173 /*
2174  * association worker
2175  */
2176 static void gelic_wl_assoc_worker(struct work_struct *work)
2177 {
2178 	struct gelic_wl_info *wl;
2179 
2180 	struct gelic_wl_scan_info *best_bss;
2181 	int ret;
2182 	unsigned long irqflag;
2183 	u8 *essid;
2184 	size_t essid_len;
2185 
2186 	wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2187 
2188 	mutex_lock(&wl->assoc_stat_lock);
2189 
2190 	if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2191 		goto out;
2192 
2193 	spin_lock_irqsave(&wl->lock, irqflag);
2194 	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2195 		pr_debug("%s: assoc ESSID configured %s\n", __func__,
2196 			 wl->essid);
2197 		essid = wl->essid;
2198 		essid_len = wl->essid_len;
2199 	} else {
2200 		essid = NULL;
2201 		essid_len = 0;
2202 	}
2203 	spin_unlock_irqrestore(&wl->lock, irqflag);
2204 
2205 	ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2206 	if (ret == -ERESTARTSYS) {
2207 		pr_debug("%s: scan start failed association\n", __func__);
2208 		schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2209 		goto out;
2210 	} else if (ret) {
2211 		pr_info("%s: scan prerequisite failed\n", __func__);
2212 		goto out;
2213 	}
2214 
2215 	/*
2216 	 * Wait for bss scan completion
2217 	 * If we have scan list already, gelic_wl_start_scan()
2218 	 * returns OK and raises the complete.  Thus,
2219 	 * it's ok to wait unconditionally here
2220 	 */
2221 	wait_for_completion(&wl->scan_done);
2222 
2223 	pr_debug("%s: scan done\n", __func__);
2224 	mutex_lock(&wl->scan_lock);
2225 	if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2226 		gelic_wl_send_iwap_event(wl, NULL);
2227 		pr_info("%s: no scan list. association failed\n", __func__);
2228 		goto scan_lock_out;
2229 	}
2230 
2231 	/* find best matching bss */
2232 	best_bss = gelic_wl_find_best_bss(wl);
2233 	if (!best_bss) {
2234 		gelic_wl_send_iwap_event(wl, NULL);
2235 		pr_info("%s: no bss matched. association failed\n", __func__);
2236 		goto scan_lock_out;
2237 	}
2238 
2239 	/* ok, do association */
2240 	ret = gelic_wl_associate_bss(wl, best_bss);
2241 	if (ret)
2242 		pr_info("%s: association failed %d\n", __func__, ret);
2243 scan_lock_out:
2244 	mutex_unlock(&wl->scan_lock);
2245 out:
2246 	mutex_unlock(&wl->assoc_stat_lock);
2247 }
2248 /*
2249  * Interrupt handler
2250  * Called from the ethernet interrupt handler
2251  * Processes wireless specific virtual interrupts only
2252  */
2253 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2254 {
2255 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2256 
2257 	if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2258 		pr_debug("%s:cmd complete\n", __func__);
2259 		complete(&wl->cmd_done_intr);
2260 	}
2261 
2262 	if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2263 		pr_debug("%s:event received\n", __func__);
2264 		queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2265 	}
2266 }
2267 
2268 /*
2269  * driver helpers
2270  */
2271 static const iw_handler gelic_wl_wext_handler[] =
2272 {
2273 	IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2274 	IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2275 	IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2276 	IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2277 	IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2278 	IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2279 	IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2280 	IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2281 	IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2282 	IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2283 	IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2284 	IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2285 	IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2286 	IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2287 	IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2288 	IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2289 	IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2290 };
2291 
2292 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2293 	.num_standard		= ARRAY_SIZE(gelic_wl_wext_handler),
2294 	.standard		= gelic_wl_wext_handler,
2295 	.get_wireless_stats	= gelic_wl_get_wireless_stats,
2296 };
2297 
2298 static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2299 {
2300 	struct net_device *netdev;
2301 	struct gelic_port *port;
2302 	struct gelic_wl_info *wl;
2303 	unsigned int i;
2304 
2305 	pr_debug("%s:start\n", __func__);
2306 	netdev = alloc_etherdev(sizeof(struct gelic_port) +
2307 				sizeof(struct gelic_wl_info));
2308 	pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2309 	if (!netdev)
2310 		return NULL;
2311 
2312 	strcpy(netdev->name, "wlan%d");
2313 
2314 	port = netdev_priv(netdev);
2315 	port->netdev = netdev;
2316 	port->card = card;
2317 	port->type = GELIC_PORT_WIRELESS;
2318 
2319 	wl = port_wl(port);
2320 	pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2321 
2322 	/* allocate scan list */
2323 	wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2324 			       GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2325 
2326 	if (!wl->networks)
2327 		goto fail_bss;
2328 
2329 	wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2330 	if (!wl->eurus_cmd_queue)
2331 		goto fail_cmd_workqueue;
2332 
2333 	wl->event_queue = create_singlethread_workqueue("gelic_event");
2334 	if (!wl->event_queue)
2335 		goto fail_event_workqueue;
2336 
2337 	INIT_LIST_HEAD(&wl->network_free_list);
2338 	INIT_LIST_HEAD(&wl->network_list);
2339 	for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2340 		list_add_tail(&wl->networks[i].list,
2341 			      &wl->network_free_list);
2342 	init_completion(&wl->cmd_done_intr);
2343 
2344 	INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2345 	INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2346 	mutex_init(&wl->scan_lock);
2347 	mutex_init(&wl->assoc_stat_lock);
2348 
2349 	init_completion(&wl->scan_done);
2350 	/* for the case that no scan request is issued and stop() is called */
2351 	complete(&wl->scan_done);
2352 
2353 	spin_lock_init(&wl->lock);
2354 
2355 	wl->scan_age = 5*HZ; /* FIXME */
2356 
2357 	/* buffer for receiving scanned list etc */
2358 	BUILD_BUG_ON(PAGE_SIZE <
2359 		     sizeof(struct gelic_eurus_scan_info) *
2360 		     GELIC_EURUS_MAX_SCAN);
2361 	pr_debug("%s:end\n", __func__);
2362 	return netdev;
2363 
2364 fail_event_workqueue:
2365 	destroy_workqueue(wl->eurus_cmd_queue);
2366 fail_cmd_workqueue:
2367 	kfree(wl->networks);
2368 fail_bss:
2369 	free_netdev(netdev);
2370 	pr_debug("%s:end error\n", __func__);
2371 	return NULL;
2372 
2373 }
2374 
2375 static void gelic_wl_free(struct gelic_wl_info *wl)
2376 {
2377 	struct gelic_wl_scan_info *scan_info;
2378 	unsigned int i;
2379 
2380 	pr_debug("%s: <-\n", __func__);
2381 
2382 	pr_debug("%s: destroy queues\n", __func__);
2383 	destroy_workqueue(wl->eurus_cmd_queue);
2384 	destroy_workqueue(wl->event_queue);
2385 
2386 	scan_info = wl->networks;
2387 	for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2388 		kfree(scan_info->hwinfo);
2389 	kfree(wl->networks);
2390 
2391 	free_netdev(port_to_netdev(wl_port(wl)));
2392 
2393 	pr_debug("%s: ->\n", __func__);
2394 }
2395 
2396 static int gelic_wl_try_associate(struct net_device *netdev)
2397 {
2398 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2399 	int ret = -1;
2400 	unsigned int i;
2401 
2402 	pr_debug("%s: <-\n", __func__);
2403 
2404 	/* check constraits for start association */
2405 	/* for no access restriction AP */
2406 	if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2407 		if (test_bit(GELIC_WL_STAT_CONFIGURED,
2408 			     &wl->stat))
2409 			goto do_associate;
2410 		else {
2411 			pr_debug("%s: no wep, not configured\n", __func__);
2412 			return ret;
2413 		}
2414 	}
2415 
2416 	/* for WEP, one of four keys should be set */
2417 	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2418 		/* one of keys set */
2419 		for (i = 0; i < GELIC_WEP_KEYS; i++) {
2420 			if (test_bit(i, &wl->key_enabled))
2421 			    goto do_associate;
2422 		}
2423 		pr_debug("%s: WEP, but no key specified\n", __func__);
2424 		return ret;
2425 	}
2426 
2427 	/* for WPA[2], psk should be set */
2428 	if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2429 	    (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2430 		if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2431 			     &wl->stat))
2432 			goto do_associate;
2433 		else {
2434 			pr_debug("%s: AES/TKIP, but PSK not configured\n",
2435 				 __func__);
2436 			return ret;
2437 		}
2438 	}
2439 
2440 do_associate:
2441 	ret = schedule_delayed_work(&wl->assoc_work, 0);
2442 	pr_debug("%s: start association work %d\n", __func__, ret);
2443 	return ret;
2444 }
2445 
2446 /*
2447  * netdev handlers
2448  */
2449 static int gelic_wl_open(struct net_device *netdev)
2450 {
2451 	struct gelic_card *card = netdev_card(netdev);
2452 
2453 	pr_debug("%s:->%p\n", __func__, netdev);
2454 
2455 	gelic_card_up(card);
2456 
2457 	/* try to associate */
2458 	gelic_wl_try_associate(netdev);
2459 
2460 	netif_start_queue(netdev);
2461 
2462 	pr_debug("%s:<-\n", __func__);
2463 	return 0;
2464 }
2465 
2466 /*
2467  * reset state machine
2468  */
2469 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2470 {
2471 	struct gelic_wl_scan_info *target;
2472 	struct gelic_wl_scan_info *tmp;
2473 
2474 	/* empty scan list */
2475 	list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2476 		list_move_tail(&target->list, &wl->network_free_list);
2477 	}
2478 	wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2479 
2480 	/* clear configuration */
2481 	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2482 	wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2483 	wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2484 	wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2485 
2486 	wl->key_enabled = 0;
2487 	wl->current_key = 0;
2488 
2489 	wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2490 	wl->psk_len = 0;
2491 
2492 	wl->essid_len = 0;
2493 	memset(wl->essid, 0, sizeof(wl->essid));
2494 	memset(wl->bssid, 0, sizeof(wl->bssid));
2495 	memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2496 
2497 	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2498 
2499 	memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2500 	/* all status bit clear */
2501 	wl->stat = 0;
2502 	return 0;
2503 }
2504 
2505 /*
2506  * Tell eurus to terminate association
2507  */
2508 static void gelic_wl_disconnect(struct net_device *netdev)
2509 {
2510 	struct gelic_port *port = netdev_priv(netdev);
2511 	struct gelic_wl_info *wl = port_wl(port);
2512 	struct gelic_eurus_cmd *cmd;
2513 
2514 	/*
2515 	 * If scann process is running on chip,
2516 	 * further requests will be rejected
2517 	 */
2518 	if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2519 		wait_for_completion_timeout(&wl->scan_done, HZ);
2520 
2521 	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2522 	kfree(cmd);
2523 	gelic_wl_send_iwap_event(wl, NULL);
2524 };
2525 
2526 static int gelic_wl_stop(struct net_device *netdev)
2527 {
2528 	struct gelic_port *port = netdev_priv(netdev);
2529 	struct gelic_wl_info *wl = port_wl(port);
2530 	struct gelic_card *card = netdev_card(netdev);
2531 
2532 	pr_debug("%s:<-\n", __func__);
2533 
2534 	/*
2535 	 * Cancel pending association work.
2536 	 * event work can run after netdev down
2537 	 */
2538 	cancel_delayed_work(&wl->assoc_work);
2539 
2540 	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2541 		gelic_wl_disconnect(netdev);
2542 
2543 	/* reset our state machine */
2544 	gelic_wl_reset_state(wl);
2545 
2546 	netif_stop_queue(netdev);
2547 
2548 	gelic_card_down(card);
2549 
2550 	pr_debug("%s:->\n", __func__);
2551 	return 0;
2552 }
2553 
2554 /* -- */
2555 
2556 static const struct net_device_ops gelic_wl_netdevice_ops = {
2557 	.ndo_open = gelic_wl_open,
2558 	.ndo_stop = gelic_wl_stop,
2559 	.ndo_start_xmit = gelic_net_xmit,
2560 	.ndo_set_rx_mode = gelic_net_set_multi,
2561 	.ndo_change_mtu = gelic_net_change_mtu,
2562 	.ndo_tx_timeout = gelic_net_tx_timeout,
2563 	.ndo_set_mac_address = eth_mac_addr,
2564 	.ndo_validate_addr = eth_validate_addr,
2565 #ifdef CONFIG_NET_POLL_CONTROLLER
2566 	.ndo_poll_controller = gelic_net_poll_controller,
2567 #endif
2568 };
2569 
2570 static const struct ethtool_ops gelic_wl_ethtool_ops = {
2571 	.get_drvinfo	= gelic_net_get_drvinfo,
2572 	.get_link	= gelic_wl_get_link,
2573 };
2574 
2575 static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2576 {
2577 	struct gelic_wl_info *wl;
2578 	wl = port_wl(netdev_priv(netdev));
2579 	BUG_ON(!wl);
2580 	netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2581 
2582 	netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2583 	netdev->netdev_ops = &gelic_wl_netdevice_ops;
2584 	netdev->wireless_data = &wl->wireless_data;
2585 	netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2586 }
2587 
2588 /*
2589  * driver probe/remove
2590  */
2591 int gelic_wl_driver_probe(struct gelic_card *card)
2592 {
2593 	int ret;
2594 	struct net_device *netdev;
2595 
2596 	pr_debug("%s:start\n", __func__);
2597 
2598 	if (ps3_compare_firmware_version(1, 6, 0) < 0)
2599 		return 0;
2600 	if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2601 		return 0;
2602 
2603 	/* alloc netdevice for wireless */
2604 	netdev = gelic_wl_alloc(card);
2605 	if (!netdev)
2606 		return -ENOMEM;
2607 
2608 	/* setup net_device structure */
2609 	SET_NETDEV_DEV(netdev, &card->dev->core);
2610 	gelic_wl_setup_netdev_ops(netdev);
2611 
2612 	/* setup some of net_device and register it */
2613 	ret = gelic_net_setup_netdev(netdev, card);
2614 	if (ret)
2615 		goto fail_setup;
2616 	card->netdev[GELIC_PORT_WIRELESS] = netdev;
2617 
2618 	/* add enable wireless interrupt */
2619 	card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2620 		GELIC_CARD_WLAN_COMMAND_COMPLETED;
2621 	/* to allow wireless commands while both interfaces are down */
2622 	gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2623 				GELIC_CARD_WLAN_COMMAND_COMPLETED);
2624 	pr_debug("%s:end\n", __func__);
2625 	return 0;
2626 
2627 fail_setup:
2628 	gelic_wl_free(port_wl(netdev_port(netdev)));
2629 
2630 	return ret;
2631 }
2632 
2633 int gelic_wl_driver_remove(struct gelic_card *card)
2634 {
2635 	struct gelic_wl_info *wl;
2636 	struct net_device *netdev;
2637 
2638 	pr_debug("%s:start\n", __func__);
2639 
2640 	if (ps3_compare_firmware_version(1, 6, 0) < 0)
2641 		return 0;
2642 	if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2643 		return 0;
2644 
2645 	netdev = card->netdev[GELIC_PORT_WIRELESS];
2646 	wl = port_wl(netdev_priv(netdev));
2647 
2648 	/* if the interface was not up, but associated */
2649 	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2650 		gelic_wl_disconnect(netdev);
2651 
2652 	complete(&wl->cmd_done_intr);
2653 
2654 	/* cancel all work queue */
2655 	cancel_delayed_work(&wl->assoc_work);
2656 	cancel_delayed_work(&wl->event_work);
2657 	flush_workqueue(wl->eurus_cmd_queue);
2658 	flush_workqueue(wl->event_queue);
2659 
2660 	unregister_netdev(netdev);
2661 
2662 	/* disable wireless interrupt */
2663 	pr_debug("%s: disable intr\n", __func__);
2664 	card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2665 			    GELIC_CARD_WLAN_COMMAND_COMPLETED);
2666 	/* free bss list, netdev*/
2667 	gelic_wl_free(wl);
2668 	pr_debug("%s:end\n", __func__);
2669 	return 0;
2670 }
2671