1	// SPDX-License-Identifier: GPL-2.0-only
2	/*
3	* PS3 gelic network driver.
4	*
5	* Copyright (C) 2007 Sony Computer Entertainment Inc.
6	* Copyright 2007 Sony Corporation
7	*/
8	#undef DEBUG
9
10	#include <linux/kernel.h>
11	#include <linux/module.h>
12	#include <linux/slab.h>
13
14	#include <linux/etherdevice.h>
15	#include <linux/ethtool.h>
16	#include <linux/if_vlan.h>
17
18	#include <linux/in.h>
19	#include <linux/ip.h>
20	#include <linux/tcp.h>
21	#include <linux/wireless.h>
22	#include <linux/ieee80211.h>
23	#include <linux/if_arp.h>
24	#include <linux/ctype.h>
25	#include <linux/string.h>
26	#include <net/iw_handler.h>
27
28	#include <linux/dma-mapping.h>
29	#include <net/checksum.h>
30	#include <asm/firmware.h>
31	#include <asm/ps3.h>
32	#include <asm/lv1call.h>
33
34	#include "ps3_gelic_net.h"
35	#include "ps3_gelic_wireless.h"
36
37
38	static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
39	u8 *essid, size_t essid_len);
40	static int gelic_wl_try_associate(struct net_device *netdev);
41
42	/*
43	* tables
44	*/
45
46	/* 802.11b/g channel to freq in MHz */
47	static const int channel_freq[] = {
48	2412, 2417, 2422, 2427, 2432,
49	2437, 2442, 2447, 2452, 2457,
50	2462, 2467, 2472, 2484
51	};
52	#define NUM_CHANNELS ARRAY_SIZE(channel_freq)
53
54	/* in bps */
55	static const int bitrate_list[] = {
56	1000000,
57	2000000,
58	5500000,
59	11000000,
60	6000000,
61	9000000,
62	12000000,
63	18000000,
64	24000000,
65	36000000,
66	48000000,
67	54000000
68	};
69	#define NUM_BITRATES ARRAY_SIZE(bitrate_list)
70
71	/*
72	* wpa2 support requires the hypervisor version 2.0 or later
73	*/
74	static inline int wpa2_capable(void)
75	{
76	return 0 <= ps3_compare_firmware_version(2, 0, 0);
77	}
78
79	static inline int precise_ie(void)
80	{
81	return 0 <= ps3_compare_firmware_version(2, 2, 0);
82	}
83	/*
84	* post_eurus_cmd helpers
85	*/
86	struct eurus_cmd_arg_info {
87	int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
88	int post_arg; /* command requires arg1, arg2 at GET_RESULT */
89	};
90
91	static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
92	[GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
93	[GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
94	[GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
95	[GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
96	[GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
97	[GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
98	[GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
99	[GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1},
100	[GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
101	};
102
103	#ifdef DEBUG
104	static const char *cmdstr(enum gelic_eurus_command ix)
105	{
106	switch (ix) {
107	case GELIC_EURUS_CMD_ASSOC:
108	return "ASSOC";
109	case GELIC_EURUS_CMD_DISASSOC:
110	return "DISASSOC";
111	case GELIC_EURUS_CMD_START_SCAN:
112	return "SCAN";
113	case GELIC_EURUS_CMD_GET_SCAN:
114	return "GET SCAN";
115	case GELIC_EURUS_CMD_SET_COMMON_CFG:
116	return "SET_COMMON_CFG";
117	case GELIC_EURUS_CMD_GET_COMMON_CFG:
118	return "GET_COMMON_CFG";
119	case GELIC_EURUS_CMD_SET_WEP_CFG:
120	return "SET_WEP_CFG";
121	case GELIC_EURUS_CMD_GET_WEP_CFG:
122	return "GET_WEP_CFG";
123	case GELIC_EURUS_CMD_SET_WPA_CFG:
124	return "SET_WPA_CFG";
125	case GELIC_EURUS_CMD_GET_WPA_CFG:
126	return "GET_WPA_CFG";
127	case GELIC_EURUS_CMD_GET_RSSI_CFG:
128	return "GET_RSSI";
129	default:
130	break;
131	}
132	return "";
133	};
134	#else
135	static inline const char *cmdstr(enum gelic_eurus_command ix)
136	{
137	return "";
138	}
139	#endif
140
141	/* synchronously do eurus commands */
142	static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
143	{
144	struct gelic_eurus_cmd *cmd;
145	struct gelic_card *card;
146	struct gelic_wl_info *wl;
147
148	u64 arg1, arg2;
149
150	pr_debug("%s: <-\n", __func__);
151	cmd = container_of(work, struct gelic_eurus_cmd, work);
152	BUG_ON(cmd_info[cmd->cmd].pre_arg &&
153	cmd_info[cmd->cmd].post_arg);
154	wl = cmd->wl;
155	card = port_to_card(p: wl_port(wl));
156
157	if (cmd_info[cmd->cmd].pre_arg) {
158	arg1 = (cmd->buffer) ?
159	ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
160	0;
161	arg2 = cmd->buf_size;
162	} else {
163	arg1 = 0;
164	arg2 = 0;
165	}
166	init_completion(x: &wl->cmd_done_intr);
167	pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
168	cmd->status = lv1_net_control(bus_id(card), dev_id(card),
169	GELIC_LV1_POST_WLAN_CMD,
170	cmd->cmd, arg1, arg2,
171	&cmd->tag, &cmd->size);
172	if (cmd->status) {
173	complete(&cmd->done);
174	pr_info("%s: cmd issue failed\n", __func__);
175	return;
176	}
177
178	wait_for_completion(&wl->cmd_done_intr);
179
180	if (cmd_info[cmd->cmd].post_arg) {
181	arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
182	arg2 = cmd->buf_size;
183	} else {
184	arg1 = 0;
185	arg2 = 0;
186	}
187
188	cmd->status = lv1_net_control(bus_id(card), dev_id(card),
189	GELIC_LV1_GET_WLAN_CMD_RESULT,
190	cmd->tag, arg1, arg2,
191	&cmd->cmd_status, &cmd->size);
192	#ifdef DEBUG
193	if (cmd->status || cmd->cmd_status) {
194	pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
195	cmd->tag, arg1, arg2);
196	pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
197	__func__, cmd->status, cmd->cmd_status, cmd->size);
198	}
199	#endif
200	complete(&cmd->done);
201	pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
202	}
203
204	static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
205	unsigned int eurus_cmd,
206	void *buffer,
207	unsigned int buf_size)
208	{
209	struct gelic_eurus_cmd *cmd;
210
211	/* allocate cmd */
212	cmd = kzalloc(size: sizeof(*cmd), GFP_KERNEL);
213	if (!cmd)
214	return NULL;
215
216	/* initialize members */
217	cmd->cmd = eurus_cmd;
218	cmd->buffer = buffer;
219	cmd->buf_size = buf_size;
220	cmd->wl = wl;
221	INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
222	init_completion(x: &cmd->done);
223	queue_work(wq: wl->eurus_cmd_queue, work: &cmd->work);
224
225	/* wait for command completion */
226	wait_for_completion(&cmd->done);
227
228	return cmd;
229	}
230
231	static u32 gelic_wl_get_link(struct net_device *netdev)
232	{
233	struct gelic_wl_info *wl = port_wl(port: netdev_port(d: netdev));
234	u32 ret;
235
236	pr_debug("%s: <-\n", __func__);
237	mutex_lock(&wl->assoc_stat_lock);
238	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
239	ret = 1;
240	else
241	ret = 0;
242	mutex_unlock(lock: &wl->assoc_stat_lock);
243	pr_debug("%s: ->\n", __func__);
244	return ret;
245	}
246
247	static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
248	{
249	union iwreq_data data;
250
251	memset(&data, 0, sizeof(data));
252	if (bssid)
253	memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
254	data.ap_addr.sa_family = ARPHRD_ETHER;
255	wireless_send_event(dev: port_to_netdev(p: wl_port(wl)), SIOCGIWAP,
256	wrqu: &data, NULL);
257	}
258
259	/*
260	* wireless extension handlers and helpers
261	*/
262
263	/* SIOGIWNAME */
264	static int gelic_wl_get_name(struct net_device *dev,
265	struct iw_request_info *info,
266	union iwreq_data *iwreq, char *extra)
267	{
268	strcpy(p: iwreq->name, q: "IEEE 802.11bg");
269	return 0;
270	}
271
272	static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
273	{
274	struct gelic_card *card = port_to_card(p: wl_port(wl));
275	u64 ch_info_raw, tmp;
276	int status;
277
278	if (!test_and_set_bit(nr: GELIC_WL_STAT_CH_INFO, addr: &wl->stat)) {
279	status = lv1_net_control(bus_id(card), dev_id(card),
280	GELIC_LV1_GET_CHANNEL, 0, 0, 0,
281	&ch_info_raw,
282	&tmp);
283	/* some fw versions may return error */
284	if (status) {
285	if (status != LV1_NO_ENTRY)
286	pr_info("%s: available ch unknown\n", __func__);
287	wl->ch_info = 0x07ff;/* 11 ch */
288	} else
289	/* 16 bits of MSB has available channels */
290	wl->ch_info = ch_info_raw >> 48;
291	}
292	}
293
294	/* SIOGIWRANGE */
295	static int gelic_wl_get_range(struct net_device *netdev,
296	struct iw_request_info *info,
297	union iwreq_data *iwreq, char *extra)
298	{
299	struct iw_point *point = &iwreq->data;
300	struct iw_range *range = (struct iw_range *)extra;
301	struct gelic_wl_info *wl = port_wl(port: netdev_port(d: netdev));
302	unsigned int i, chs;
303
304	pr_debug("%s: <-\n", __func__);
305	point->length = sizeof(struct iw_range);
306	memset(range, 0, sizeof(struct iw_range));
307
308	range->we_version_compiled = WIRELESS_EXT;
309	range->we_version_source = 22;
310
311	/* available channels and frequencies */
312	gelic_wl_get_ch_info(wl);
313
314	for (i = 0, chs = 0;
315	i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
316	if (wl->ch_info & (1 << i)) {
317	range->freq[chs].i = i + 1;
318	range->freq[chs].m = channel_freq[i];
319	range->freq[chs].e = 6;
320	chs++;
321	}
322	range->num_frequency = chs;
323	range->old_num_frequency = chs;
324	range->num_channels = chs;
325	range->old_num_channels = chs;
326
327	/* bitrates */
328	for (i = 0; i < NUM_BITRATES; i++)
329	range->bitrate[i] = bitrate_list[i];
330	range->num_bitrates = i;
331
332	/* signal levels */
333	range->max_qual.qual = 100; /* relative value */
334	range->max_qual.level = 100;
335	range->avg_qual.qual = 50;
336	range->avg_qual.level = 50;
337	range->sensitivity = 0;
338
339	/* Event capability */
340	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
341	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
342	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
343
344	/* encryption capability */
345	range->enc_capa = IW_ENC_CAPA_WPA |
346	IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
347	IW_ENC_CAPA_4WAY_HANDSHAKE;
348	if (wpa2_capable())
349	range->enc_capa |= IW_ENC_CAPA_WPA2;
350	range->encoding_size[0] = 5; /* 40bit WEP */
351	range->encoding_size[1] = 13; /* 104bit WEP */
352	range->encoding_size[2] = 32; /* WPA-PSK */
353	range->num_encoding_sizes = 3;
354	range->max_encoding_tokens = GELIC_WEP_KEYS;
355
356	/* scan capability */
357	range->scan_capa = IW_SCAN_CAPA_ESSID;
358
359	pr_debug("%s: ->\n", __func__);
360	return 0;
361
362	}
363
364	/* SIOC{G,S}IWSCAN */
365	static int gelic_wl_set_scan(struct net_device *netdev,
366	struct iw_request_info *info,
367	union iwreq_data *wrqu, char *extra)
368	{
369	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
370	struct iw_scan_req *req;
371	u8 *essid = NULL;
372	size_t essid_len = 0;
373
374	if (wrqu->data.length == sizeof(struct iw_scan_req) &&
375	wrqu->data.flags & IW_SCAN_THIS_ESSID) {
376	req = (struct iw_scan_req*)extra;
377	essid = req->essid;
378	essid_len = req->essid_len;
379	pr_debug("%s: ESSID scan =%s\n", __func__, essid);
380	}
381	return gelic_wl_start_scan(wl, always_scan: 1, essid, essid_len);
382	}
383
384	#define OUI_LEN 3
385	static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
386	static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
387
388	/*
389	* synthesize WPA/RSN IE data
390	* See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
391	* for the format
392	*/
393	static size_t gelic_wl_synthesize_ie(u8 *buf,
394	struct gelic_eurus_scan_info *scan)
395	{
396
397	const u8 *oui_header;
398	u8 *start = buf;
399	int rsn;
400	int ccmp;
401
402	pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
403	switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
404	case GELIC_EURUS_SCAN_SEC_WPA:
405	rsn = 0;
406	break;
407	case GELIC_EURUS_SCAN_SEC_WPA2:
408	rsn = 1;
409	break;
410	default:
411	/* WEP or none. No IE returned */
412	return 0;
413	}
414
415	switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
416	case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
417	ccmp = 0;
418	break;
419	case GELIC_EURUS_SCAN_SEC_WPA_AES:
420	ccmp = 1;
421	break;
422	default:
423	if (rsn) {
424	ccmp = 1;
425	pr_info("%s: no cipher info. defaulted to CCMP\n",
426	__func__);
427	} else {
428	ccmp = 0;
429	pr_info("%s: no cipher info. defaulted to TKIP\n",
430	__func__);
431	}
432	}
433
434	if (rsn)
435	oui_header = rsn_oui;
436	else
437	oui_header = wpa_oui;
438
439	/* element id */
440	if (rsn)
441	*buf++ = WLAN_EID_RSN;
442	else
443	*buf++ = WLAN_EID_VENDOR_SPECIFIC;
444
445	/* length filed; set later */
446	buf++;
447
448	/* wpa special header */
449	if (!rsn) {
450	memcpy(buf, wpa_oui, OUI_LEN);
451	buf += OUI_LEN;
452	*buf++ = 0x01;
453	}
454
455	/* version */
456	*buf++ = 0x01; /* version 1.0 */
457	*buf++ = 0x00;
458
459	/* group cipher */
460	memcpy(buf, oui_header, OUI_LEN);
461	buf += OUI_LEN;
462
463	if (ccmp)
464	*buf++ = 0x04; /* CCMP */
465	else
466	*buf++ = 0x02; /* TKIP */
467
468	/* pairwise key count always 1 */
469	*buf++ = 0x01;
470	*buf++ = 0x00;
471
472	/* pairwise key suit */
473	memcpy(buf, oui_header, OUI_LEN);
474	buf += OUI_LEN;
475	if (ccmp)
476	*buf++ = 0x04; /* CCMP */
477	else
478	*buf++ = 0x02; /* TKIP */
479
480	/* AKM count is 1 */
481	*buf++ = 0x01;
482	*buf++ = 0x00;
483
484	/* AKM suite is assumed as PSK*/
485	memcpy(buf, oui_header, OUI_LEN);
486	buf += OUI_LEN;
487	*buf++ = 0x02; /* PSK */
488
489	/* RSN capabilities is 0 */
490	*buf++ = 0x00;
491	*buf++ = 0x00;
492
493	/* set length field */
494	start[1] = (buf - start - 2);
495
496	pr_debug("%s: ->\n", __func__);
497	return buf - start;
498	}
499
500	struct ie_item {
501	u8 *data;
502	u8 len;
503	};
504
505	struct ie_info {
506	struct ie_item wpa;
507	struct ie_item rsn;
508	};
509
510	static void gelic_wl_parse_ie(u8 *data, size_t len,
511	struct ie_info *ie_info)
512	{
513	size_t data_left = len;
514	u8 *pos = data;
515	u8 item_len;
516	u8 item_id;
517
518	pr_debug("%s: data=%p len=%ld\n", __func__,
519	data, len);
520	memset(ie_info, 0, sizeof(struct ie_info));
521
522	while (2 <= data_left) {
523	item_id = *pos++;
524	item_len = *pos++;
525	data_left -= 2;
526
527	if (data_left < item_len)
528	break;
529
530	switch (item_id) {
531	case WLAN_EID_VENDOR_SPECIFIC:
532	if ((OUI_LEN + 1 <= item_len) &&
533	!memcmp(p: pos, q: wpa_oui, OUI_LEN) &&
534	pos[OUI_LEN] == 0x01) {
535	ie_info->wpa.data = pos - 2;
536	ie_info->wpa.len = item_len + 2;
537	}
538	break;
539	case WLAN_EID_RSN:
540	ie_info->rsn.data = pos - 2;
541	/* length includes the header */
542	ie_info->rsn.len = item_len + 2;
543	break;
544	default:
545	pr_debug("%s: ignore %#x,%d\n", __func__,
546	item_id, item_len);
547	break;
548	}
549	pos += item_len;
550	data_left -= item_len;
551	}
552	pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
553	ie_info->wpa.data, ie_info->wpa.len,
554	ie_info->rsn.data, ie_info->rsn.len);
555	}
556
557
558	/*
559	* translate the scan informations from hypervisor to a
560	* independent format
561	*/
562	static char *gelic_wl_translate_scan(struct net_device *netdev,
563	struct iw_request_info *info,
564	char *ev,
565	char *stop,
566	struct gelic_wl_scan_info *network)
567	{
568	struct iw_event iwe;
569	struct gelic_eurus_scan_info *scan = network->hwinfo;
570	char *tmp;
571	u8 rate;
572	unsigned int i, j, len;
573	u8 buf[64]; /* arbitrary size large enough */
574
575	pr_debug("%s: <-\n", __func__);
576
577	/* first entry should be AP's mac address */
578	iwe.cmd = SIOCGIWAP;
579	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
580	memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
581	ev = iwe_stream_add_event(info, stream: ev, ends: stop, iwe: &iwe, IW_EV_ADDR_LEN);
582
583	/* ESSID */
584	iwe.cmd = SIOCGIWESSID;
585	iwe.u.data.flags = 1;
586	iwe.u.data.length = strnlen(p: scan->essid, maxlen: 32);
587	ev = iwe_stream_add_point(info, stream: ev, ends: stop, iwe: &iwe, extra: scan->essid);
588
589	/* FREQUENCY */
590	iwe.cmd = SIOCGIWFREQ;
591	iwe.u.freq.m = be16_to_cpu(scan->channel);
592	iwe.u.freq.e = 0; /* table value in MHz */
593	iwe.u.freq.i = 0;
594	ev = iwe_stream_add_event(info, stream: ev, ends: stop, iwe: &iwe, IW_EV_FREQ_LEN);
595
596	/* RATES */
597	iwe.cmd = SIOCGIWRATE;
598	iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
599	/* to stuff multiple values in one event */
600	tmp = ev + iwe_stream_lcp_len(info);
601	/* put them in ascendant order (older is first) */
602	i = 0;
603	j = 0;
604	pr_debug("%s: rates=%d rate=%d\n", __func__,
605	network->rate_len, network->rate_ext_len);
606	while (i < network->rate_len) {
607	if (j < network->rate_ext_len &&
608	((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
609	rate = scan->ext_rate[j++] & 0x7f;
610	else
611	rate = scan->rate[i++] & 0x7f;
612	iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
613	tmp = iwe_stream_add_value(info, event: ev, value: tmp, ends: stop, iwe: &iwe,
614	IW_EV_PARAM_LEN);
615	}
616	while (j < network->rate_ext_len) {
617	iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
618	tmp = iwe_stream_add_value(info, event: ev, value: tmp, ends: stop, iwe: &iwe,
619	IW_EV_PARAM_LEN);
620	}
621	/* Check if we added any rate */
622	if (iwe_stream_lcp_len(info) < (tmp - ev))
623	ev = tmp;
624
625	/* ENCODE */
626	iwe.cmd = SIOCGIWENCODE;
627	if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
628	iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
629	else
630	iwe.u.data.flags = IW_ENCODE_DISABLED;
631	iwe.u.data.length = 0;
632	ev = iwe_stream_add_point(info, stream: ev, ends: stop, iwe: &iwe, extra: scan->essid);
633
634	/* MODE */
635	iwe.cmd = SIOCGIWMODE;
636	if (be16_to_cpu(scan->capability) &
637	(WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
638	if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
639	iwe.u.mode = IW_MODE_MASTER;
640	else
641	iwe.u.mode = IW_MODE_ADHOC;
642	ev = iwe_stream_add_event(info, stream: ev, ends: stop, iwe: &iwe, IW_EV_UINT_LEN);
643	}
644
645	/* QUAL */
646	iwe.cmd = IWEVQUAL;
647	iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
648	IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
649	iwe.u.qual.level = be16_to_cpu(scan->rssi);
650	iwe.u.qual.qual = be16_to_cpu(scan->rssi);
651	iwe.u.qual.noise = 0;
652	ev = iwe_stream_add_event(info, stream: ev, ends: stop, iwe: &iwe, IW_EV_QUAL_LEN);
653
654	/* RSN */
655	memset(&iwe, 0, sizeof(iwe));
656	if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
657	/* If wpa[2] capable station, synthesize IE and put it */
658	len = gelic_wl_synthesize_ie(buf, scan);
659	if (len) {
660	iwe.cmd = IWEVGENIE;
661	iwe.u.data.length = len;
662	ev = iwe_stream_add_point(info, stream: ev, ends: stop, iwe: &iwe, extra: buf);
663	}
664	} else {
665	/* this scan info has IE data */
666	struct ie_info ie_info;
667	size_t data_len;
668
669	data_len = be16_to_cpu(scan->size) - sizeof(*scan);
670
671	gelic_wl_parse_ie(data: scan->elements, len: data_len, ie_info: &ie_info);
672
673	if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
674	memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
675	iwe.cmd = IWEVGENIE;
676	iwe.u.data.length = ie_info.wpa.len;
677	ev = iwe_stream_add_point(info, stream: ev, ends: stop, iwe: &iwe, extra: buf);
678	}
679
680	if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
681	memset(&iwe, 0, sizeof(iwe));
682	memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
683	iwe.cmd = IWEVGENIE;
684	iwe.u.data.length = ie_info.rsn.len;
685	ev = iwe_stream_add_point(info, stream: ev, ends: stop, iwe: &iwe, extra: buf);
686	}
687	}
688
689	pr_debug("%s: ->\n", __func__);
690	return ev;
691	}
692
693
694	static int gelic_wl_get_scan(struct net_device *netdev,
695	struct iw_request_info *info,
696	union iwreq_data *wrqu, char *extra)
697	{
698	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
699	struct gelic_wl_scan_info *scan_info;
700	char *ev = extra;
701	char *stop = ev + wrqu->data.length;
702	int ret = 0;
703	unsigned long this_time = jiffies;
704
705	pr_debug("%s: <-\n", __func__);
706	if (mutex_lock_interruptible(&wl->scan_lock))
707	return -EAGAIN;
708
709	switch (wl->scan_stat) {
710	case GELIC_WL_SCAN_STAT_SCANNING:
711	/* If a scan in progress, caller should call me again */
712	ret = -EAGAIN;
713	goto out;
714	case GELIC_WL_SCAN_STAT_INIT:
715	/* last scan request failed or never issued */
716	ret = -ENODEV;
717	goto out;
718	case GELIC_WL_SCAN_STAT_GOT_LIST:
719	/* ok, use current list */
720	break;
721	}
722
723	list_for_each_entry(scan_info, &wl->network_list, list) {
724	if (wl->scan_age == 0 ||
725	time_after(scan_info->last_scanned + wl->scan_age,
726	this_time))
727	ev = gelic_wl_translate_scan(netdev, info,
728	ev, stop,
729	network: scan_info);
730	else
731	pr_debug("%s:entry too old\n", __func__);
732
733	if (stop - ev <= IW_EV_ADDR_LEN) {
734	ret = -E2BIG;
735	goto out;
736	}
737	}
738
739	wrqu->data.length = ev - extra;
740	wrqu->data.flags = 0;
741	out:
742	mutex_unlock(lock: &wl->scan_lock);
743	pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
744	return ret;
745	}
746
747	#ifdef DEBUG
748	static void scan_list_dump(struct gelic_wl_info *wl)
749	{
750	struct gelic_wl_scan_info *scan_info;
751	int i;
752
753	i = 0;
754	list_for_each_entry(scan_info, &wl->network_list, list) {
755	pr_debug("%s: item %d\n", __func__, i++);
756	pr_debug("valid=%d eurusindex=%d last=%lx\n",
757	scan_info->valid, scan_info->eurus_index,
758	scan_info->last_scanned);
759	pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
760	scan_info->rate_len, scan_info->rate_ext_len,
761	scan_info->essid_len);
762	/* -- */
763	pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
764	pr_debug("essid=%s\n", scan_info->hwinfo->essid);
765	}
766	}
767	#endif
768
769	static int gelic_wl_set_auth(struct net_device *netdev,
770	struct iw_request_info *info,
771	union iwreq_data *data, char *extra)
772	{
773	struct iw_param *param = &data->param;
774	struct gelic_wl_info *wl = port_wl(port: netdev_port(d: netdev));
775	unsigned long irqflag;
776	int ret = 0;
777
778	pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
779	spin_lock_irqsave(&wl->lock, irqflag);
780	switch (param->flags & IW_AUTH_INDEX) {
781	case IW_AUTH_WPA_VERSION:
782	if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
783	pr_debug("%s: NO WPA selected\n", __func__);
784	wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
785	wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
786	wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
787	}
788	if (param->value & IW_AUTH_WPA_VERSION_WPA) {
789	pr_debug("%s: WPA version 1 selected\n", __func__);
790	wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
791	wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
792	wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
793	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
794	}
795	if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
796	/*
797	* As the hypervisor may not tell the cipher
798	* information of the AP if it is WPA2,
799	* you will not decide suitable cipher from
800	* its beacon.
801	* You should have knowledge about the AP's
802	* cipher information in other method prior to
803	* the association.
804	*/
805	if (!precise_ie())
806	pr_info("%s: WPA2 may not work\n", __func__);
807	if (wpa2_capable()) {
808	wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
809	wl->group_cipher_method = GELIC_WL_CIPHER_AES;
810	wl->pairwise_cipher_method =
811	GELIC_WL_CIPHER_AES;
812	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
813	} else
814	ret = -EINVAL;
815	}
816	break;
817
818	case IW_AUTH_CIPHER_PAIRWISE:
819	if (param->value &
820	(IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
821	pr_debug("%s: WEP selected\n", __func__);
822	wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
823	}
824	if (param->value & IW_AUTH_CIPHER_TKIP) {
825	pr_debug("%s: TKIP selected\n", __func__);
826	wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
827	}
828	if (param->value & IW_AUTH_CIPHER_CCMP) {
829	pr_debug("%s: CCMP selected\n", __func__);
830	wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
831	}
832	if (param->value & IW_AUTH_CIPHER_NONE) {
833	pr_debug("%s: no auth selected\n", __func__);
834	wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
835	}
836	break;
837	case IW_AUTH_CIPHER_GROUP:
838	if (param->value &
839	(IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
840	pr_debug("%s: WEP selected\n", __func__);
841	wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
842	}
843	if (param->value & IW_AUTH_CIPHER_TKIP) {
844	pr_debug("%s: TKIP selected\n", __func__);
845	wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
846	}
847	if (param->value & IW_AUTH_CIPHER_CCMP) {
848	pr_debug("%s: CCMP selected\n", __func__);
849	wl->group_cipher_method = GELIC_WL_CIPHER_AES;
850	}
851	if (param->value & IW_AUTH_CIPHER_NONE) {
852	pr_debug("%s: no auth selected\n", __func__);
853	wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
854	}
855	break;
856	case IW_AUTH_80211_AUTH_ALG:
857	if (param->value & IW_AUTH_ALG_SHARED_KEY) {
858	pr_debug("%s: shared key specified\n", __func__);
859	wl->auth_method = GELIC_EURUS_AUTH_SHARED;
860	} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
861	pr_debug("%s: open system specified\n", __func__);
862	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
863	} else
864	ret = -EINVAL;
865	break;
866
867	case IW_AUTH_WPA_ENABLED:
868	if (param->value) {
869	pr_debug("%s: WPA enabled\n", __func__);
870	wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
871	} else {
872	pr_debug("%s: WPA disabled\n", __func__);
873	wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
874	}
875	break;
876
877	case IW_AUTH_KEY_MGMT:
878	if (param->value & IW_AUTH_KEY_MGMT_PSK)
879	break;
880	fallthrough;
881	default:
882	ret = -EOPNOTSUPP;
883	break;
884	}
885
886	if (!ret)
887	set_bit(nr: GELIC_WL_STAT_CONFIGURED, addr: &wl->stat);
888
889	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
890	pr_debug("%s: -> %d\n", __func__, ret);
891	return ret;
892	}
893
894	static int gelic_wl_get_auth(struct net_device *netdev,
895	struct iw_request_info *info,
896	union iwreq_data *iwreq, char *extra)
897	{
898	struct iw_param *param = &iwreq->param;
899	struct gelic_wl_info *wl = port_wl(port: netdev_port(d: netdev));
900	unsigned long irqflag;
901	int ret = 0;
902
903	pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
904	spin_lock_irqsave(&wl->lock, irqflag);
905	switch (param->flags & IW_AUTH_INDEX) {
906	case IW_AUTH_WPA_VERSION:
907	switch (wl->wpa_level) {
908	case GELIC_WL_WPA_LEVEL_WPA:
909	param->value |= IW_AUTH_WPA_VERSION_WPA;
910	break;
911	case GELIC_WL_WPA_LEVEL_WPA2:
912	param->value |= IW_AUTH_WPA_VERSION_WPA2;
913	break;
914	default:
915	param->value |= IW_AUTH_WPA_VERSION_DISABLED;
916	}
917	break;
918
919	case IW_AUTH_80211_AUTH_ALG:
920	if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
921	param->value = IW_AUTH_ALG_SHARED_KEY;
922	else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
923	param->value = IW_AUTH_ALG_OPEN_SYSTEM;
924	break;
925
926	case IW_AUTH_WPA_ENABLED:
927	switch (wl->wpa_level) {
928	case GELIC_WL_WPA_LEVEL_WPA:
929	case GELIC_WL_WPA_LEVEL_WPA2:
930	param->value = 1;
931	break;
932	default:
933	param->value = 0;
934	break;
935	}
936	break;
937	default:
938	ret = -EOPNOTSUPP;
939	}
940
941	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
942	pr_debug("%s: -> %d\n", __func__, ret);
943	return ret;
944	}
945
946	/* SIOC{S,G}IWESSID */
947	static int gelic_wl_set_essid(struct net_device *netdev,
948	struct iw_request_info *info,
949	union iwreq_data *data, char *extra)
950	{
951	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
952	unsigned long irqflag;
953
954	pr_debug("%s: <- l=%d f=%d\n", __func__,
955	data->essid.length, data->essid.flags);
956	if (IW_ESSID_MAX_SIZE < data->essid.length)
957	return -EINVAL;
958
959	spin_lock_irqsave(&wl->lock, irqflag);
960	if (data->essid.flags) {
961	wl->essid_len = data->essid.length;
962	memcpy(wl->essid, extra, wl->essid_len);
963	pr_debug("%s: essid = '%s'\n", __func__, extra);
964	set_bit(nr: GELIC_WL_STAT_ESSID_SET, addr: &wl->stat);
965	} else {
966	pr_debug("%s: ESSID any\n", __func__);
967	clear_bit(nr: GELIC_WL_STAT_ESSID_SET, addr: &wl->stat);
968	}
969	set_bit(nr: GELIC_WL_STAT_CONFIGURED, addr: &wl->stat);
970	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
971
972
973	gelic_wl_try_associate(netdev); /* FIXME */
974	pr_debug("%s: ->\n", __func__);
975	return 0;
976	}
977
978	static int gelic_wl_get_essid(struct net_device *netdev,
979	struct iw_request_info *info,
980	union iwreq_data *data, char *extra)
981	{
982	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
983	unsigned long irqflag;
984
985	pr_debug("%s: <-\n", __func__);
986	mutex_lock(&wl->assoc_stat_lock);
987	spin_lock_irqsave(&wl->lock, irqflag);
988	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
989	wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
990	memcpy(extra, wl->essid, wl->essid_len);
991	data->essid.length = wl->essid_len;
992	data->essid.flags = 1;
993	} else
994	data->essid.flags = 0;
995
996	mutex_unlock(lock: &wl->assoc_stat_lock);
997	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
998	pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
999
1000	return 0;
1001	}
1002
1003	/* SIO{S,G}IWENCODE */
1004	static int gelic_wl_set_encode(struct net_device *netdev,
1005	struct iw_request_info *info,
1006	union iwreq_data *data, char *extra)
1007	{
1008	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
1009	struct iw_point *enc = &data->encoding;
1010	__u16 flags;
1011	unsigned long irqflag;
1012	int key_index, index_specified;
1013	int ret = 0;
1014
1015	pr_debug("%s: <-\n", __func__);
1016	flags = enc->flags & IW_ENCODE_FLAGS;
1017	key_index = enc->flags & IW_ENCODE_INDEX;
1018
1019	pr_debug("%s: key_index = %d\n", __func__, key_index);
1020	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1021	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1022
1023	if (GELIC_WEP_KEYS < key_index)
1024	return -EINVAL;
1025
1026	spin_lock_irqsave(&wl->lock, irqflag);
1027	if (key_index) {
1028	index_specified = 1;
1029	key_index--;
1030	} else {
1031	index_specified = 0;
1032	key_index = wl->current_key;
1033	}
1034
1035	if (flags & IW_ENCODE_NOKEY) {
1036	/* if just IW_ENCODE_NOKEY, change current key index */
1037	if (!flags && index_specified) {
1038	wl->current_key = key_index;
1039	goto done;
1040	}
1041
1042	if (flags & IW_ENCODE_DISABLED) {
1043	if (!index_specified) {
1044	/* disable encryption */
1045	wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1046	wl->pairwise_cipher_method =
1047	GELIC_WL_CIPHER_NONE;
1048	/* invalidate all key */
1049	wl->key_enabled = 0;
1050	} else
1051	clear_bit(nr: key_index, addr: &wl->key_enabled);
1052	}
1053
1054	if (flags & IW_ENCODE_OPEN)
1055	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1056	if (flags & IW_ENCODE_RESTRICTED) {
1057	pr_info("%s: shared key mode enabled\n", __func__);
1058	wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1059	}
1060	} else {
1061	if (IW_ENCODING_TOKEN_MAX < enc->length) {
1062	ret = -EINVAL;
1063	goto done;
1064	}
1065	wl->key_len[key_index] = enc->length;
1066	memcpy(wl->key[key_index], extra, enc->length);
1067	set_bit(nr: key_index, addr: &wl->key_enabled);
1068	wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1069	wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1070	}
1071	set_bit(nr: GELIC_WL_STAT_CONFIGURED, addr: &wl->stat);
1072	done:
1073	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
1074	pr_debug("%s: ->\n", __func__);
1075	return ret;
1076	}
1077
1078	static int gelic_wl_get_encode(struct net_device *netdev,
1079	struct iw_request_info *info,
1080	union iwreq_data *data, char *extra)
1081	{
1082	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
1083	struct iw_point *enc = &data->encoding;
1084	unsigned long irqflag;
1085	unsigned int key_index;
1086	int ret = 0;
1087
1088	pr_debug("%s: <-\n", __func__);
1089	key_index = enc->flags & IW_ENCODE_INDEX;
1090	pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1091	enc->flags, enc->pointer, enc->length, extra);
1092	if (GELIC_WEP_KEYS < key_index)
1093	return -EINVAL;
1094
1095	spin_lock_irqsave(&wl->lock, irqflag);
1096	if (key_index)
1097	key_index--;
1098	else
1099	key_index = wl->current_key;
1100
1101	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1102	switch (wl->auth_method) {
1103	case GELIC_EURUS_AUTH_OPEN:
1104	enc->flags = IW_ENCODE_OPEN;
1105	break;
1106	case GELIC_EURUS_AUTH_SHARED:
1107	enc->flags = IW_ENCODE_RESTRICTED;
1108	break;
1109	}
1110	} else
1111	enc->flags = IW_ENCODE_DISABLED;
1112
1113	if (test_bit(key_index, &wl->key_enabled)) {
1114	if (enc->length < wl->key_len[key_index]) {
1115	ret = -EINVAL;
1116	goto done;
1117	}
1118	enc->length = wl->key_len[key_index];
1119	memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1120	} else {
1121	enc->length = 0;
1122	enc->flags |= IW_ENCODE_NOKEY;
1123	}
1124	enc->flags |= key_index + 1;
1125	pr_debug("%s: -> flag=%x len=%d\n", __func__,
1126	enc->flags, enc->length);
1127
1128	done:
1129	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
1130	return ret;
1131	}
1132
1133	/* SIOC{S,G}IWAP */
1134	static int gelic_wl_set_ap(struct net_device *netdev,
1135	struct iw_request_info *info,
1136	union iwreq_data *data, char *extra)
1137	{
1138	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
1139	unsigned long irqflag;
1140
1141	pr_debug("%s: <-\n", __func__);
1142	if (data->ap_addr.sa_family != ARPHRD_ETHER)
1143	return -EINVAL;
1144
1145	spin_lock_irqsave(&wl->lock, irqflag);
1146	if (is_valid_ether_addr(addr: data->ap_addr.sa_data)) {
1147	memcpy(wl->bssid, data->ap_addr.sa_data,
1148	ETH_ALEN);
1149	set_bit(nr: GELIC_WL_STAT_BSSID_SET, addr: &wl->stat);
1150	set_bit(nr: GELIC_WL_STAT_CONFIGURED, addr: &wl->stat);
1151	pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1152	} else {
1153	pr_debug("%s: clear bssid\n", __func__);
1154	clear_bit(nr: GELIC_WL_STAT_BSSID_SET, addr: &wl->stat);
1155	eth_zero_addr(addr: wl->bssid);
1156	}
1157	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
1158	pr_debug("%s: ->\n", __func__);
1159	return 0;
1160	}
1161
1162	static int gelic_wl_get_ap(struct net_device *netdev,
1163	struct iw_request_info *info,
1164	union iwreq_data *data, char *extra)
1165	{
1166	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
1167	unsigned long irqflag;
1168
1169	pr_debug("%s: <-\n", __func__);
1170	mutex_lock(&wl->assoc_stat_lock);
1171	spin_lock_irqsave(&wl->lock, irqflag);
1172	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1173	data->ap_addr.sa_family = ARPHRD_ETHER;
1174	memcpy(data->ap_addr.sa_data, wl->active_bssid,
1175	ETH_ALEN);
1176	} else
1177	eth_zero_addr(addr: data->ap_addr.sa_data);
1178
1179	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
1180	mutex_unlock(lock: &wl->assoc_stat_lock);
1181	pr_debug("%s: ->\n", __func__);
1182	return 0;
1183	}
1184
1185	/* SIOC{S,G}IWENCODEEXT */
1186	static int gelic_wl_set_encodeext(struct net_device *netdev,
1187	struct iw_request_info *info,
1188	union iwreq_data *data, char *extra)
1189	{
1190	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
1191	struct iw_point *enc = &data->encoding;
1192	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1193	__u16 alg;
1194	__u16 flags;
1195	unsigned long irqflag;
1196	int key_index;
1197	int ret = 0;
1198
1199	pr_debug("%s: <-\n", __func__);
1200	flags = enc->flags & IW_ENCODE_FLAGS;
1201	alg = ext->alg;
1202	key_index = enc->flags & IW_ENCODE_INDEX;
1203
1204	pr_debug("%s: key_index = %d\n", __func__, key_index);
1205	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1206	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1207	pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1208	pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1209
1210	if (GELIC_WEP_KEYS < key_index)
1211	return -EINVAL;
1212
1213	spin_lock_irqsave(&wl->lock, irqflag);
1214	if (key_index)
1215	key_index--;
1216	else
1217	key_index = wl->current_key;
1218
1219	if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1220	/* request to change default key index */
1221	pr_debug("%s: request to change default key to %d\n",
1222	__func__, key_index);
1223	wl->current_key = key_index;
1224	goto done;
1225	}
1226
1227	if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1228	pr_debug("%s: alg disabled\n", __func__);
1229	wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1230	wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1231	wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1232	wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1233	} else if (alg == IW_ENCODE_ALG_WEP) {
1234	pr_debug("%s: WEP requested\n", __func__);
1235	if (flags & IW_ENCODE_OPEN) {
1236	pr_debug("%s: open key mode\n", __func__);
1237	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1238	}
1239	if (flags & IW_ENCODE_RESTRICTED) {
1240	pr_debug("%s: shared key mode\n", __func__);
1241	wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1242	}
1243	if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1244	pr_info("%s: key is too long %d\n", __func__,
1245	ext->key_len);
1246	ret = -EINVAL;
1247	goto done;
1248	}
1249	/* OK, update the key */
1250	wl->key_len[key_index] = ext->key_len;
1251	memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1252	memcpy(wl->key[key_index], ext->key, ext->key_len);
1253	set_bit(nr: key_index, addr: &wl->key_enabled);
1254	/* remember wep info changed */
1255	set_bit(nr: GELIC_WL_STAT_CONFIGURED, addr: &wl->stat);
1256	} else if (alg == IW_ENCODE_ALG_PMK) {
1257	if (ext->key_len != WPA_PSK_LEN) {
1258	pr_err("%s: PSK length wrong %d\n", __func__,
1259	ext->key_len);
1260	ret = -EINVAL;
1261	goto done;
1262	}
1263	memset(wl->psk, 0, sizeof(wl->psk));
1264	memcpy(wl->psk, ext->key, ext->key_len);
1265	wl->psk_len = ext->key_len;
1266	wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1267	/* remember PSK configured */
1268	set_bit(nr: GELIC_WL_STAT_WPA_PSK_SET, addr: &wl->stat);
1269	}
1270	done:
1271	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
1272	pr_debug("%s: ->\n", __func__);
1273	return ret;
1274	}
1275
1276	static int gelic_wl_get_encodeext(struct net_device *netdev,
1277	struct iw_request_info *info,
1278	union iwreq_data *data, char *extra)
1279	{
1280	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
1281	struct iw_point *enc = &data->encoding;
1282	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1283	unsigned long irqflag;
1284	int key_index;
1285	int ret = 0;
1286	int max_key_len;
1287
1288	pr_debug("%s: <-\n", __func__);
1289
1290	max_key_len = enc->length - sizeof(struct iw_encode_ext);
1291	if (max_key_len < 0)
1292	return -EINVAL;
1293	key_index = enc->flags & IW_ENCODE_INDEX;
1294
1295	pr_debug("%s: key_index = %d\n", __func__, key_index);
1296	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1297	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1298
1299	if (GELIC_WEP_KEYS < key_index)
1300	return -EINVAL;
1301
1302	spin_lock_irqsave(&wl->lock, irqflag);
1303	if (key_index)
1304	key_index--;
1305	else
1306	key_index = wl->current_key;
1307
1308	memset(ext, 0, sizeof(struct iw_encode_ext));
1309	switch (wl->group_cipher_method) {
1310	case GELIC_WL_CIPHER_WEP:
1311	ext->alg = IW_ENCODE_ALG_WEP;
1312	enc->flags |= IW_ENCODE_ENABLED;
1313	break;
1314	case GELIC_WL_CIPHER_TKIP:
1315	ext->alg = IW_ENCODE_ALG_TKIP;
1316	enc->flags |= IW_ENCODE_ENABLED;
1317	break;
1318	case GELIC_WL_CIPHER_AES:
1319	ext->alg = IW_ENCODE_ALG_CCMP;
1320	enc->flags |= IW_ENCODE_ENABLED;
1321	break;
1322	case GELIC_WL_CIPHER_NONE:
1323	default:
1324	ext->alg = IW_ENCODE_ALG_NONE;
1325	enc->flags |= IW_ENCODE_NOKEY;
1326	break;
1327	}
1328
1329	if (!(enc->flags & IW_ENCODE_NOKEY)) {
1330	if (max_key_len < wl->key_len[key_index]) {
1331	ret = -E2BIG;
1332	goto out;
1333	}
1334	if (test_bit(key_index, &wl->key_enabled))
1335	memcpy(ext->key, wl->key[key_index],
1336	wl->key_len[key_index]);
1337	else
1338	pr_debug("%s: disabled key requested ix=%d\n",
1339	__func__, key_index);
1340	}
1341	out:
1342	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
1343	pr_debug("%s: ->\n", __func__);
1344	return ret;
1345	}
1346	/* SIOC{S,G}IWMODE */
1347	static int gelic_wl_set_mode(struct net_device *netdev,
1348	struct iw_request_info *info,
1349	union iwreq_data *data, char *extra)
1350	{
1351	__u32 mode = data->mode;
1352	int ret;
1353
1354	pr_debug("%s: <-\n", __func__);
1355	if (mode == IW_MODE_INFRA)
1356	ret = 0;
1357	else
1358	ret = -EOPNOTSUPP;
1359	pr_debug("%s: -> %d\n", __func__, ret);
1360	return ret;
1361	}
1362
1363	static int gelic_wl_get_mode(struct net_device *netdev,
1364	struct iw_request_info *info,
1365	union iwreq_data *data, char *extra)
1366	{
1367	__u32 *mode = &data->mode;
1368	pr_debug("%s: <-\n", __func__);
1369	*mode = IW_MODE_INFRA;
1370	pr_debug("%s: ->\n", __func__);
1371	return 0;
1372	}
1373
1374	/* SIOCGIWNICKN */
1375	static int gelic_wl_get_nick(struct net_device *net_dev,
1376	struct iw_request_info *info,
1377	union iwreq_data *data, char *extra)
1378	{
1379	strcpy(p: extra, q: "gelic_wl");
1380	data->data.length = strlen(extra);
1381	data->data.flags = 1;
1382	return 0;
1383	}
1384
1385
1386	/* --- */
1387
1388	static struct iw_statistics *gelic_wl_get_wireless_stats(
1389	struct net_device *netdev)
1390	{
1391
1392	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
1393	struct gelic_eurus_cmd *cmd;
1394	struct iw_statistics *is;
1395	struct gelic_eurus_rssi_info *rssi;
1396	void *buf;
1397
1398	pr_debug("%s: <-\n", __func__);
1399
1400	buf = (void *)__get_free_page(GFP_KERNEL);
1401	if (!buf)
1402	return NULL;
1403
1404	is = &wl->iwstat;
1405	memset(is, 0, sizeof(*is));
1406	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_GET_RSSI_CFG,
1407	buffer: buf, buf_size: sizeof(*rssi));
1408	if (cmd && !cmd->status && !cmd->cmd_status) {
1409	rssi = buf;
1410	is->qual.level = be16_to_cpu(rssi->rssi);
1411	is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1412	IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1413	} else
1414	/* not associated */
1415	is->qual.updated = IW_QUAL_ALL_INVALID;
1416
1417	kfree(objp: cmd);
1418	free_page((unsigned long)buf);
1419	pr_debug("%s: ->\n", __func__);
1420	return is;
1421	}
1422
1423	/*
1424	* scanning helpers
1425	*/
1426	static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1427	u8 *essid, size_t essid_len)
1428	{
1429	struct gelic_eurus_cmd *cmd;
1430	int ret = 0;
1431	void *buf = NULL;
1432	size_t len;
1433
1434	pr_debug("%s: <- always=%d\n", __func__, always_scan);
1435	if (mutex_lock_interruptible(&wl->scan_lock))
1436	return -ERESTARTSYS;
1437
1438	/*
1439	* If already a scan in progress, do not trigger more
1440	*/
1441	if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1442	pr_debug("%s: scanning now\n", __func__);
1443	goto out;
1444	}
1445
1446	init_completion(x: &wl->scan_done);
1447	/*
1448	* If we have already a bss list, don't try to get new
1449	* unless we are doing an ESSID scan
1450	*/
1451	if ((!essid_len && !always_scan)
1452	&& wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1453	pr_debug("%s: already has the list\n", __func__);
1454	complete(&wl->scan_done);
1455	goto out;
1456	}
1457
1458	/* ESSID scan ? */
1459	if (essid_len && essid) {
1460	buf = (void *)__get_free_page(GFP_KERNEL);
1461	if (!buf) {
1462	ret = -ENOMEM;
1463	goto out;
1464	}
1465	len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1466	memset(buf, 0, len);
1467	memcpy(buf, essid, essid_len);
1468	pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1469	} else
1470	len = 0;
1471
1472	/*
1473	* issue start scan request
1474	*/
1475	wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1476	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_START_SCAN,
1477	buffer: buf, buf_size: len);
1478	if (!cmd || cmd->status || cmd->cmd_status) {
1479	wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1480	complete(&wl->scan_done);
1481	ret = -ENOMEM;
1482	goto out;
1483	}
1484	kfree(objp: cmd);
1485	out:
1486	free_page((unsigned long)buf);
1487	mutex_unlock(lock: &wl->scan_lock);
1488	pr_debug("%s: ->\n", __func__);
1489	return ret;
1490	}
1491
1492	/*
1493	* retrieve scan result from the chip (hypervisor)
1494	* this function is invoked by schedule work.
1495	*/
1496	static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1497	{
1498	struct gelic_eurus_cmd *cmd = NULL;
1499	struct gelic_wl_scan_info *target, *tmp;
1500	struct gelic_wl_scan_info *oldest = NULL;
1501	struct gelic_eurus_scan_info *scan_info;
1502	unsigned int scan_info_size;
1503	union iwreq_data data;
1504	unsigned long this_time = jiffies;
1505	unsigned int data_len, i, found, r;
1506	void *buf;
1507
1508	pr_debug("%s:start\n", __func__);
1509	mutex_lock(&wl->scan_lock);
1510
1511	buf = (void *)__get_free_page(GFP_KERNEL);
1512	if (!buf) {
1513	pr_info("%s: scan buffer alloc failed\n", __func__);
1514	goto out;
1515	}
1516
1517	if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1518	/*
1519	* stop() may be called while scanning, ignore result
1520	*/
1521	pr_debug("%s: scan complete when stat != scanning(%d)\n",
1522	__func__, wl->scan_stat);
1523	goto out;
1524	}
1525
1526	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_GET_SCAN,
1527	buffer: buf, PAGE_SIZE);
1528	if (!cmd || cmd->status || cmd->cmd_status) {
1529	wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1530	pr_info("%s:cmd failed\n", __func__);
1531	kfree(objp: cmd);
1532	goto out;
1533	}
1534	data_len = cmd->size;
1535	pr_debug("%s: data_len = %d\n", __func__, data_len);
1536	kfree(objp: cmd);
1537
1538	/* OK, bss list retrieved */
1539	wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1540
1541	/* mark all entries are old */
1542	list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1543	target->valid = 0;
1544	/* expire too old entries */
1545	if (time_before(target->last_scanned + wl->scan_age,
1546	this_time)) {
1547	kfree(objp: target->hwinfo);
1548	target->hwinfo = NULL;
1549	list_move_tail(list: &target->list, head: &wl->network_free_list);
1550	}
1551	}
1552
1553	/* put them in the network_list */
1554	for (i = 0, scan_info_size = 0, scan_info = buf;
1555	scan_info_size < data_len;
1556	i++, scan_info_size += be16_to_cpu(scan_info->size),
1557	scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1558	pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1559	be16_to_cpu(scan_info->size),
1560	&scan_info->bssid[2], scan_info);
1561
1562	/*
1563	* The wireless firmware may return invalid channel 0 and/or
1564	* invalid rate if the AP emits zero length SSID ie. As this
1565	* scan information is useless, ignore it
1566	*/
1567	if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1568	pr_debug("%s: invalid scan info\n", __func__);
1569	continue;
1570	}
1571
1572	found = 0;
1573	oldest = NULL;
1574	list_for_each_entry(target, &wl->network_list, list) {
1575	if (ether_addr_equal(addr1: &target->hwinfo->bssid[2],
1576	addr2: &scan_info->bssid[2])) {
1577	found = 1;
1578	pr_debug("%s: same BBS found scanned list\n",
1579	__func__);
1580	break;
1581	}
1582	if (!oldest ||
1583	(target->last_scanned < oldest->last_scanned))
1584	oldest = target;
1585	}
1586
1587	if (!found) {
1588	/* not found in the list */
1589	if (list_empty(head: &wl->network_free_list)) {
1590	/* expire oldest */
1591	target = oldest;
1592	} else {
1593	target = list_entry(wl->network_free_list.next,
1594	struct gelic_wl_scan_info,
1595	list);
1596	}
1597	}
1598
1599	/* update the item */
1600	target->last_scanned = this_time;
1601	target->valid = 1;
1602	target->eurus_index = i;
1603	kfree(objp: target->hwinfo);
1604	target->hwinfo = kmemdup(p: scan_info,
1605	be16_to_cpu(scan_info->size),
1606	GFP_KERNEL);
1607	if (!target->hwinfo)
1608	continue;
1609
1610	/* copy hw scan info */
1611	target->essid_len = strnlen(p: scan_info->essid,
1612	maxlen: sizeof(scan_info->essid));
1613	target->rate_len = 0;
1614	for (r = 0; r < 12; r++)
1615	if (scan_info->rate[r])
1616	target->rate_len++;
1617	if (8 < target->rate_len)
1618	pr_info("%s: AP returns %d rates\n", __func__,
1619	target->rate_len);
1620	target->rate_ext_len = 0;
1621	for (r = 0; r < 16; r++)
1622	if (scan_info->ext_rate[r])
1623	target->rate_ext_len++;
1624	list_move_tail(list: &target->list, head: &wl->network_list);
1625	}
1626	memset(&data, 0, sizeof(data));
1627	wireless_send_event(dev: port_to_netdev(p: wl_port(wl)), SIOCGIWSCAN, wrqu: &data,
1628	NULL);
1629	out:
1630	free_page((unsigned long)buf);
1631	complete(&wl->scan_done);
1632	mutex_unlock(lock: &wl->scan_lock);
1633	pr_debug("%s:end\n", __func__);
1634	}
1635
1636	/*
1637	* Select an appropriate bss from current scan list regarding
1638	* current settings from userspace.
1639	* The caller must hold wl->scan_lock,
1640	* and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1641	*/
1642	static void update_best(struct gelic_wl_scan_info **best,
1643	struct gelic_wl_scan_info *candid,
1644	int *best_weight,
1645	int *weight)
1646	{
1647	if (*best_weight < ++(*weight)) {
1648	*best_weight = *weight;
1649	*best = candid;
1650	}
1651	}
1652
1653	static
1654	struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1655	{
1656	struct gelic_wl_scan_info *scan_info;
1657	struct gelic_wl_scan_info *best_bss;
1658	int weight, best_weight;
1659	u16 security;
1660
1661	pr_debug("%s: <-\n", __func__);
1662
1663	best_bss = NULL;
1664	best_weight = 0;
1665
1666	list_for_each_entry(scan_info, &wl->network_list, list) {
1667	pr_debug("%s: station %p\n", __func__, scan_info);
1668
1669	if (!scan_info->valid) {
1670	pr_debug("%s: station invalid\n", __func__);
1671	continue;
1672	}
1673
1674	/* If bss specified, check it only */
1675	if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1676	if (ether_addr_equal(addr1: &scan_info->hwinfo->bssid[2],
1677	addr2: wl->bssid)) {
1678	best_bss = scan_info;
1679	pr_debug("%s: bssid matched\n", __func__);
1680	break;
1681	} else {
1682	pr_debug("%s: bssid unmatched\n", __func__);
1683	continue;
1684	}
1685	}
1686
1687	weight = 0;
1688
1689	/* security */
1690	security = be16_to_cpu(scan_info->hwinfo->security) &
1691	GELIC_EURUS_SCAN_SEC_MASK;
1692	if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1693	if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1694	update_best(best: &best_bss, candid: scan_info,
1695	best_weight: &best_weight, weight: &weight);
1696	else
1697	continue;
1698	} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1699	if (security == GELIC_EURUS_SCAN_SEC_WPA)
1700	update_best(best: &best_bss, candid: scan_info,
1701	best_weight: &best_weight, weight: &weight);
1702	else
1703	continue;
1704	} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1705	wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1706	if (security == GELIC_EURUS_SCAN_SEC_WEP)
1707	update_best(best: &best_bss, candid: scan_info,
1708	best_weight: &best_weight, weight: &weight);
1709	else
1710	continue;
1711	}
1712
1713	/* If ESSID is set, check it */
1714	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1715	if ((scan_info->essid_len == wl->essid_len) &&
1716	!strncmp(wl->essid,
1717	scan_info->hwinfo->essid,
1718	scan_info->essid_len))
1719	update_best(best: &best_bss, candid: scan_info,
1720	best_weight: &best_weight, weight: &weight);
1721	else
1722	continue;
1723	}
1724	}
1725
1726	#ifdef DEBUG
1727	pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1728	if (best_bss) {
1729	pr_debug("%s:addr=%pM\n", __func__,
1730	&best_bss->hwinfo->bssid[2]);
1731	}
1732	#endif
1733	return best_bss;
1734	}
1735
1736	/*
1737	* Setup WEP configuration to the chip
1738	* The caller must hold wl->scan_lock,
1739	* and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1740	*/
1741	static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1742	{
1743	unsigned int i;
1744	struct gelic_eurus_wep_cfg *wep;
1745	struct gelic_eurus_cmd *cmd;
1746	int wep104 = 0;
1747	int have_key = 0;
1748	int ret = 0;
1749
1750	pr_debug("%s: <-\n", __func__);
1751	/* we can assume no one should uses the buffer */
1752	wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1753	if (!wep)
1754	return -ENOMEM;
1755
1756	memset(wep, 0, sizeof(*wep));
1757
1758	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1759	pr_debug("%s: WEP mode\n", __func__);
1760	for (i = 0; i < GELIC_WEP_KEYS; i++) {
1761	if (!test_bit(i, &wl->key_enabled))
1762	continue;
1763
1764	pr_debug("%s: key#%d enabled\n", __func__, i);
1765	have_key = 1;
1766	if (wl->key_len[i] == 13)
1767	wep104 = 1;
1768	else if (wl->key_len[i] != 5) {
1769	pr_info("%s: wrong wep key[%d]=%d\n",
1770	__func__, i, wl->key_len[i]);
1771	ret = -EINVAL;
1772	goto out;
1773	}
1774	memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1775	}
1776
1777	if (!have_key) {
1778	pr_info("%s: all wep key disabled\n", __func__);
1779	ret = -EINVAL;
1780	goto out;
1781	}
1782
1783	if (wep104) {
1784	pr_debug("%s: 104bit key\n", __func__);
1785	wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1786	} else {
1787	pr_debug("%s: 40bit key\n", __func__);
1788	wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1789	}
1790	} else {
1791	pr_debug("%s: NO encryption\n", __func__);
1792	wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1793	}
1794
1795	/* issue wep setup */
1796	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_SET_WEP_CFG,
1797	buffer: wep, buf_size: sizeof(*wep));
1798	if (!cmd)
1799	ret = -ENOMEM;
1800	else if (cmd->status || cmd->cmd_status)
1801	ret = -ENXIO;
1802
1803	kfree(objp: cmd);
1804	out:
1805	free_page((unsigned long)wep);
1806	pr_debug("%s: ->\n", __func__);
1807	return ret;
1808	}
1809
1810	#ifdef DEBUG
1811	static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1812	{
1813	switch (sec) {
1814	case GELIC_EURUS_WPA_SEC_NONE:
1815	return "NONE";
1816	case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1817	return "WPA_TKIP_TKIP";
1818	case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1819	return "WPA_TKIP_AES";
1820	case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1821	return "WPA_AES_AES";
1822	case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1823	return "WPA2_TKIP_TKIP";
1824	case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1825	return "WPA2_TKIP_AES";
1826	case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1827	return "WPA2_AES_AES";
1828	}
1829	return "";
1830	};
1831	#endif
1832
1833	static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1834	{
1835	struct gelic_eurus_wpa_cfg *wpa;
1836	struct gelic_eurus_cmd *cmd;
1837	u16 security;
1838	int ret = 0;
1839
1840	pr_debug("%s: <-\n", __func__);
1841	/* we can assume no one should uses the buffer */
1842	wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1843	if (!wpa)
1844	return -ENOMEM;
1845
1846	memset(wpa, 0, sizeof(*wpa));
1847
1848	if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1849	pr_info("%s: PSK not configured yet\n", __func__);
1850
1851	/* copy key */
1852	memcpy(wpa->psk, wl->psk, wl->psk_len);
1853
1854	/* set security level */
1855	if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1856	if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1857	security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1858	} else {
1859	if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1860	precise_ie())
1861	security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1862	else
1863	security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1864	}
1865	} else {
1866	if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1867	security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1868	} else {
1869	if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1870	precise_ie())
1871	security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1872	else
1873	security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1874	}
1875	}
1876	wpa->security = cpu_to_be16(security);
1877
1878	/* PSK type */
1879	wpa->psk_type = cpu_to_be16(wl->psk_type);
1880	#ifdef DEBUG
1881	pr_debug("%s: sec=%s psktype=%s\n", __func__,
1882	wpasecstr(wpa->security),
1883	(wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1884	"BIN" : "passphrase");
1885	#if 0
1886	/*
1887	* don't enable here if you plan to submit
1888	* the debug log because this dumps your precious
1889	* passphrase/key.
1890	*/
1891	pr_debug("%s: psk=%s\n", __func__,
1892	(wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1893	"N/A" : wpa->psk);
1894	#endif
1895	#endif
1896	/* issue wpa setup */
1897	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_SET_WPA_CFG,
1898	buffer: wpa, buf_size: sizeof(*wpa));
1899	if (!cmd)
1900	ret = -ENOMEM;
1901	else if (cmd->status || cmd->cmd_status)
1902	ret = -ENXIO;
1903	kfree(objp: cmd);
1904	free_page((unsigned long)wpa);
1905	pr_debug("%s: --> %d\n", __func__, ret);
1906	return ret;
1907	}
1908
1909	/*
1910	* Start association. caller must hold assoc_stat_lock
1911	*/
1912	static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1913	struct gelic_wl_scan_info *bss)
1914	{
1915	struct gelic_eurus_cmd *cmd;
1916	struct gelic_eurus_common_cfg *common;
1917	int ret = 0;
1918	unsigned long rc;
1919
1920	pr_debug("%s: <-\n", __func__);
1921
1922	/* do common config */
1923	common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1924	if (!common)
1925	return -ENOMEM;
1926
1927	memset(common, 0, sizeof(*common));
1928	common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1929	common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1930
1931	common->scan_index = cpu_to_be16(bss->eurus_index);
1932	switch (wl->auth_method) {
1933	case GELIC_EURUS_AUTH_OPEN:
1934	common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1935	break;
1936	case GELIC_EURUS_AUTH_SHARED:
1937	common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1938	break;
1939	}
1940
1941	#ifdef DEBUG
1942	scan_list_dump(wl);
1943	#endif
1944	pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1945	be16_to_cpu(common->scan_index),
1946	be16_to_cpu(common->bss_type),
1947	be16_to_cpu(common->auth_method));
1948
1949	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_SET_COMMON_CFG,
1950	buffer: common, buf_size: sizeof(*common));
1951	if (!cmd || cmd->status || cmd->cmd_status) {
1952	ret = -ENOMEM;
1953	kfree(objp: cmd);
1954	goto out;
1955	}
1956	kfree(objp: cmd);
1957
1958	/* WEP/WPA */
1959	switch (wl->wpa_level) {
1960	case GELIC_WL_WPA_LEVEL_NONE:
1961	/* If WEP or no security, setup WEP config */
1962	ret = gelic_wl_do_wep_setup(wl);
1963	break;
1964	case GELIC_WL_WPA_LEVEL_WPA:
1965	case GELIC_WL_WPA_LEVEL_WPA2:
1966	ret = gelic_wl_do_wpa_setup(wl);
1967	break;
1968	}
1969
1970	if (ret) {
1971	pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1972	ret);
1973	ret = -EPERM;
1974	gelic_wl_send_iwap_event(wl, NULL);
1975	goto out;
1976	}
1977
1978	/* start association */
1979	init_completion(x: &wl->assoc_done);
1980	wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
1981	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_ASSOC,
1982	NULL, buf_size: 0);
1983	if (!cmd || cmd->status || cmd->cmd_status) {
1984	pr_debug("%s: assoc request failed\n", __func__);
1985	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
1986	kfree(objp: cmd);
1987	ret = -ENOMEM;
1988	gelic_wl_send_iwap_event(wl, NULL);
1989	goto out;
1990	}
1991	kfree(objp: cmd);
1992
1993	/* wait for connected event */
1994	rc = wait_for_completion_timeout(x: &wl->assoc_done, HZ * 4);/*FIXME*/
1995
1996	if (!rc) {
1997	/* timeouted. Maybe key or cyrpt mode is wrong */
1998	pr_info("%s: connect timeout\n", __func__);
1999	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_DISASSOC,
2000	NULL, buf_size: 0);
2001	kfree(objp: cmd);
2002	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2003	gelic_wl_send_iwap_event(wl, NULL);
2004	ret = -ENXIO;
2005	} else {
2006	wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2007	/* copy bssid */
2008	memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2009
2010	/* send connect event */
2011	gelic_wl_send_iwap_event(wl, bssid: wl->active_bssid);
2012	pr_info("%s: connected\n", __func__);
2013	}
2014	out:
2015	free_page((unsigned long)common);
2016	pr_debug("%s: ->\n", __func__);
2017	return ret;
2018	}
2019
2020	/*
2021	* connected event
2022	*/
2023	static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2024	u64 event)
2025	{
2026	u64 desired_event = 0;
2027
2028	switch (wl->wpa_level) {
2029	case GELIC_WL_WPA_LEVEL_NONE:
2030	desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2031	break;
2032	case GELIC_WL_WPA_LEVEL_WPA:
2033	case GELIC_WL_WPA_LEVEL_WPA2:
2034	desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2035	break;
2036	}
2037
2038	if (desired_event == event) {
2039	pr_debug("%s: completed\n", __func__);
2040	complete(&wl->assoc_done);
2041	netif_carrier_on(dev: port_to_netdev(p: wl_port(wl)));
2042	} else
2043	pr_debug("%s: event %#llx under wpa\n",
2044	__func__, event);
2045	}
2046
2047	/*
2048	* disconnect event
2049	*/
2050	static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2051	u64 event)
2052	{
2053	struct gelic_eurus_cmd *cmd;
2054	int lock;
2055
2056	/*
2057	* If we fall here in the middle of association,
2058	* associate_bss() should be waiting for complation of
2059	* wl->assoc_done.
2060	* As it waits with timeout, just leave assoc_done
2061	* uncompleted, then it terminates with timeout
2062	*/
2063	if (!mutex_trylock(lock: &wl->assoc_stat_lock)) {
2064	pr_debug("%s: already locked\n", __func__);
2065	lock = 0;
2066	} else {
2067	pr_debug("%s: obtain lock\n", __func__);
2068	lock = 1;
2069	}
2070
2071	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_DISASSOC, NULL, buf_size: 0);
2072	kfree(objp: cmd);
2073
2074	/* send disconnected event to the supplicant */
2075	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2076	gelic_wl_send_iwap_event(wl, NULL);
2077
2078	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2079	netif_carrier_off(dev: port_to_netdev(p: wl_port(wl)));
2080
2081	if (lock)
2082	mutex_unlock(lock: &wl->assoc_stat_lock);
2083	}
2084	/*
2085	* event worker
2086	*/
2087	#ifdef DEBUG
2088	static const char *eventstr(enum gelic_lv1_wl_event event)
2089	{
2090	static char buf[32];
2091	char *ret;
2092	if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2093	ret = "EURUS_READY";
2094	else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2095	ret = "SCAN_COMPLETED";
2096	else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2097	ret = "DEAUTH";
2098	else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2099	ret = "BEACON_LOST";
2100	else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2101	ret = "CONNECTED";
2102	else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2103	ret = "WPA_CONNECTED";
2104	else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2105	ret = "WPA_ERROR";
2106	else {
2107	sprintf(buf, "Unknown(%#x)", event);
2108	ret = buf;
2109	}
2110	return ret;
2111	}
2112	#else
2113	static const char *eventstr(enum gelic_lv1_wl_event event)
2114	{
2115	return NULL;
2116	}
2117	#endif
2118	static void gelic_wl_event_worker(struct work_struct *work)
2119	{
2120	struct gelic_wl_info *wl;
2121	struct gelic_port *port;
2122	u64 event, tmp;
2123	int status;
2124
2125	pr_debug("%s:start\n", __func__);
2126	wl = container_of(work, struct gelic_wl_info, event_work.work);
2127	port = wl_port(wl);
2128	while (1) {
2129	status = lv1_net_control(bus_id(card: port->card), dev_id(card: port->card),
2130	GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2131	&event, &tmp);
2132	if (status) {
2133	if (status != LV1_NO_ENTRY)
2134	pr_debug("%s:wlan event failed %d\n",
2135	__func__, status);
2136	/* got all events */
2137	pr_debug("%s:end\n", __func__);
2138	return;
2139	}
2140	pr_debug("%s: event=%s\n", __func__, eventstr(event));
2141	switch (event) {
2142	case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2143	gelic_wl_scan_complete_event(wl);
2144	break;
2145	case GELIC_LV1_WL_EVENT_BEACON_LOST:
2146	case GELIC_LV1_WL_EVENT_DEAUTH:
2147	gelic_wl_disconnect_event(wl, event);
2148	break;
2149	case GELIC_LV1_WL_EVENT_CONNECTED:
2150	case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2151	gelic_wl_connected_event(wl, event);
2152	break;
2153	default:
2154	break;
2155	}
2156	} /* while */
2157	}
2158	/*
2159	* association worker
2160	*/
2161	static void gelic_wl_assoc_worker(struct work_struct *work)
2162	{
2163	struct gelic_wl_info *wl;
2164
2165	struct gelic_wl_scan_info *best_bss;
2166	int ret;
2167	unsigned long irqflag;
2168	u8 *essid;
2169	size_t essid_len;
2170
2171	wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2172
2173	mutex_lock(&wl->assoc_stat_lock);
2174
2175	if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2176	goto out;
2177
2178	spin_lock_irqsave(&wl->lock, irqflag);
2179	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2180	pr_debug("%s: assoc ESSID configured %s\n", __func__,
2181	wl->essid);
2182	essid = wl->essid;
2183	essid_len = wl->essid_len;
2184	} else {
2185	essid = NULL;
2186	essid_len = 0;
2187	}
2188	spin_unlock_irqrestore(lock: &wl->lock, flags: irqflag);
2189
2190	ret = gelic_wl_start_scan(wl, always_scan: 0, essid, essid_len);
2191	if (ret == -ERESTARTSYS) {
2192	pr_debug("%s: scan start failed association\n", __func__);
2193	schedule_delayed_work(dwork: &wl->assoc_work, HZ/10); /*FIXME*/
2194	goto out;
2195	} else if (ret) {
2196	pr_info("%s: scan prerequisite failed\n", __func__);
2197	goto out;
2198	}
2199
2200	/*
2201	* Wait for bss scan completion
2202	* If we have scan list already, gelic_wl_start_scan()
2203	* returns OK and raises the complete. Thus,
2204	* it's ok to wait unconditionally here
2205	*/
2206	wait_for_completion(&wl->scan_done);
2207
2208	pr_debug("%s: scan done\n", __func__);
2209	mutex_lock(&wl->scan_lock);
2210	if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2211	gelic_wl_send_iwap_event(wl, NULL);
2212	pr_info("%s: no scan list. association failed\n", __func__);
2213	goto scan_lock_out;
2214	}
2215
2216	/* find best matching bss */
2217	best_bss = gelic_wl_find_best_bss(wl);
2218	if (!best_bss) {
2219	gelic_wl_send_iwap_event(wl, NULL);
2220	pr_info("%s: no bss matched. association failed\n", __func__);
2221	goto scan_lock_out;
2222	}
2223
2224	/* ok, do association */
2225	ret = gelic_wl_associate_bss(wl, bss: best_bss);
2226	if (ret)
2227	pr_info("%s: association failed %d\n", __func__, ret);
2228	scan_lock_out:
2229	mutex_unlock(lock: &wl->scan_lock);
2230	out:
2231	mutex_unlock(lock: &wl->assoc_stat_lock);
2232	}
2233	/*
2234	* Interrupt handler
2235	* Called from the ethernet interrupt handler
2236	* Processes wireless specific virtual interrupts only
2237	*/
2238	void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2239	{
2240	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
2241
2242	if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2243	pr_debug("%s:cmd complete\n", __func__);
2244	complete(&wl->cmd_done_intr);
2245	}
2246
2247	if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2248	pr_debug("%s:event received\n", __func__);
2249	queue_delayed_work(wq: wl->event_queue, dwork: &wl->event_work, delay: 0);
2250	}
2251	}
2252
2253	/*
2254	* driver helpers
2255	*/
2256	static const iw_handler gelic_wl_wext_handler[] =
2257	{
2258	IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2259	IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2260	IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2261	IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2262	IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2263	IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2264	IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2265	IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2266	IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2267	IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2268	IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2269	IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2270	IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2271	IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2272	IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2273	IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2274	IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2275	};
2276
2277	static const struct iw_handler_def gelic_wl_wext_handler_def = {
2278	.num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2279	.standard = gelic_wl_wext_handler,
2280	.get_wireless_stats = gelic_wl_get_wireless_stats,
2281	};
2282
2283	static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2284	{
2285	struct net_device *netdev;
2286	struct gelic_port *port;
2287	struct gelic_wl_info *wl;
2288	unsigned int i;
2289
2290	pr_debug("%s:start\n", __func__);
2291	netdev = alloc_etherdev(sizeof(struct gelic_port) +
2292	sizeof(struct gelic_wl_info));
2293	pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2294	if (!netdev)
2295	return NULL;
2296
2297	strcpy(p: netdev->name, q: "wlan%d");
2298
2299	port = netdev_priv(dev: netdev);
2300	port->netdev = netdev;
2301	port->card = card;
2302	port->type = GELIC_PORT_WIRELESS;
2303
2304	wl = port_wl(port);
2305	pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2306
2307	/* allocate scan list */
2308	wl->networks = kcalloc(GELIC_WL_BSS_MAX_ENT,
2309	size: sizeof(struct gelic_wl_scan_info),
2310	GFP_KERNEL);
2311
2312	if (!wl->networks)
2313	goto fail_bss;
2314
2315	wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2316	if (!wl->eurus_cmd_queue)
2317	goto fail_cmd_workqueue;
2318
2319	wl->event_queue = create_singlethread_workqueue("gelic_event");
2320	if (!wl->event_queue)
2321	goto fail_event_workqueue;
2322
2323	INIT_LIST_HEAD(list: &wl->network_free_list);
2324	INIT_LIST_HEAD(list: &wl->network_list);
2325	for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2326	list_add_tail(new: &wl->networks[i].list,
2327	head: &wl->network_free_list);
2328	init_completion(x: &wl->cmd_done_intr);
2329
2330	INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2331	INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2332	mutex_init(&wl->scan_lock);
2333	mutex_init(&wl->assoc_stat_lock);
2334
2335	init_completion(x: &wl->scan_done);
2336	/* for the case that no scan request is issued and stop() is called */
2337	complete(&wl->scan_done);
2338
2339	spin_lock_init(&wl->lock);
2340
2341	wl->scan_age = 5*HZ; /* FIXME */
2342
2343	/* buffer for receiving scanned list etc */
2344	BUILD_BUG_ON(PAGE_SIZE <
2345	sizeof(struct gelic_eurus_scan_info) *
2346	GELIC_EURUS_MAX_SCAN);
2347	pr_debug("%s:end\n", __func__);
2348	return netdev;
2349
2350	fail_event_workqueue:
2351	destroy_workqueue(wq: wl->eurus_cmd_queue);
2352	fail_cmd_workqueue:
2353	kfree(objp: wl->networks);
2354	fail_bss:
2355	free_netdev(dev: netdev);
2356	pr_debug("%s:end error\n", __func__);
2357	return NULL;
2358
2359	}
2360
2361	static void gelic_wl_free(struct gelic_wl_info *wl)
2362	{
2363	struct gelic_wl_scan_info *scan_info;
2364	unsigned int i;
2365
2366	pr_debug("%s: <-\n", __func__);
2367
2368	pr_debug("%s: destroy queues\n", __func__);
2369	destroy_workqueue(wq: wl->eurus_cmd_queue);
2370	destroy_workqueue(wq: wl->event_queue);
2371
2372	scan_info = wl->networks;
2373	for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2374	kfree(objp: scan_info->hwinfo);
2375	kfree(objp: wl->networks);
2376
2377	free_netdev(dev: port_to_netdev(p: wl_port(wl)));
2378
2379	pr_debug("%s: ->\n", __func__);
2380	}
2381
2382	static int gelic_wl_try_associate(struct net_device *netdev)
2383	{
2384	struct gelic_wl_info *wl = port_wl(port: netdev_priv(dev: netdev));
2385	int ret = -1;
2386	unsigned int i;
2387
2388	pr_debug("%s: <-\n", __func__);
2389
2390	/* check constraits for start association */
2391	/* for no access restriction AP */
2392	if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2393	if (test_bit(GELIC_WL_STAT_CONFIGURED,
2394	&wl->stat))
2395	goto do_associate;
2396	else {
2397	pr_debug("%s: no wep, not configured\n", __func__);
2398	return ret;
2399	}
2400	}
2401
2402	/* for WEP, one of four keys should be set */
2403	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2404	/* one of keys set */
2405	for (i = 0; i < GELIC_WEP_KEYS; i++) {
2406	if (test_bit(i, &wl->key_enabled))
2407	goto do_associate;
2408	}
2409	pr_debug("%s: WEP, but no key specified\n", __func__);
2410	return ret;
2411	}
2412
2413	/* for WPA[2], psk should be set */
2414	if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2415	(wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2416	if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2417	&wl->stat))
2418	goto do_associate;
2419	else {
2420	pr_debug("%s: AES/TKIP, but PSK not configured\n",
2421	__func__);
2422	return ret;
2423	}
2424	}
2425
2426	do_associate:
2427	ret = schedule_delayed_work(dwork: &wl->assoc_work, delay: 0);
2428	pr_debug("%s: start association work %d\n", __func__, ret);
2429	return ret;
2430	}
2431
2432	/*
2433	* netdev handlers
2434	*/
2435	static int gelic_wl_open(struct net_device *netdev)
2436	{
2437	struct gelic_card *card = netdev_card(d: netdev);
2438
2439	pr_debug("%s:->%p\n", __func__, netdev);
2440
2441	gelic_card_up(card);
2442
2443	/* try to associate */
2444	gelic_wl_try_associate(netdev);
2445
2446	netif_start_queue(dev: netdev);
2447
2448	pr_debug("%s:<-\n", __func__);
2449	return 0;
2450	}
2451
2452	/*
2453	* reset state machine
2454	*/
2455	static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2456	{
2457	struct gelic_wl_scan_info *target;
2458	struct gelic_wl_scan_info *tmp;
2459
2460	/* empty scan list */
2461	list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2462	list_move_tail(list: &target->list, head: &wl->network_free_list);
2463	}
2464	wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2465
2466	/* clear configuration */
2467	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2468	wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2469	wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2470	wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2471
2472	wl->key_enabled = 0;
2473	wl->current_key = 0;
2474
2475	wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2476	wl->psk_len = 0;
2477
2478	wl->essid_len = 0;
2479	memset(wl->essid, 0, sizeof(wl->essid));
2480	memset(wl->bssid, 0, sizeof(wl->bssid));
2481	memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2482
2483	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2484
2485	memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2486	/* all status bit clear */
2487	wl->stat = 0;
2488	return 0;
2489	}
2490
2491	/*
2492	* Tell eurus to terminate association
2493	*/
2494	static void gelic_wl_disconnect(struct net_device *netdev)
2495	{
2496	struct gelic_port *port = netdev_priv(dev: netdev);
2497	struct gelic_wl_info *wl = port_wl(port);
2498	struct gelic_eurus_cmd *cmd;
2499
2500	/*
2501	* If scann process is running on chip,
2502	* further requests will be rejected
2503	*/
2504	if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2505	wait_for_completion_timeout(x: &wl->scan_done, HZ);
2506
2507	cmd = gelic_eurus_sync_cmd(wl, eurus_cmd: GELIC_EURUS_CMD_DISASSOC, NULL, buf_size: 0);
2508	kfree(objp: cmd);
2509	gelic_wl_send_iwap_event(wl, NULL);
2510	};
2511
2512	static int gelic_wl_stop(struct net_device *netdev)
2513	{
2514	struct gelic_port *port = netdev_priv(dev: netdev);
2515	struct gelic_wl_info *wl = port_wl(port);
2516	struct gelic_card *card = netdev_card(d: netdev);
2517
2518	pr_debug("%s:<-\n", __func__);
2519
2520	/*
2521	* Cancel pending association work.
2522	* event work can run after netdev down
2523	*/
2524	cancel_delayed_work(dwork: &wl->assoc_work);
2525
2526	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2527	gelic_wl_disconnect(netdev);
2528
2529	/* reset our state machine */
2530	gelic_wl_reset_state(wl);
2531
2532	netif_stop_queue(dev: netdev);
2533
2534	gelic_card_down(card);
2535
2536	pr_debug("%s:->\n", __func__);
2537	return 0;
2538	}
2539
2540	/* -- */
2541
2542	static const struct net_device_ops gelic_wl_netdevice_ops = {
2543	.ndo_open = gelic_wl_open,
2544	.ndo_stop = gelic_wl_stop,
2545	.ndo_start_xmit = gelic_net_xmit,
2546	.ndo_set_rx_mode = gelic_net_set_multi,
2547	.ndo_tx_timeout = gelic_net_tx_timeout,
2548	.ndo_set_mac_address = eth_mac_addr,
2549	.ndo_validate_addr = eth_validate_addr,
2550	#ifdef CONFIG_NET_POLL_CONTROLLER
2551	.ndo_poll_controller = gelic_net_poll_controller,
2552	#endif
2553	};
2554
2555	static const struct ethtool_ops gelic_wl_ethtool_ops = {
2556	.get_drvinfo = gelic_net_get_drvinfo,
2557	.get_link = gelic_wl_get_link,
2558	};
2559
2560	static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2561	{
2562	struct gelic_wl_info *wl;
2563	wl = port_wl(port: netdev_priv(dev: netdev));
2564	BUG_ON(!wl);
2565	netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2566
2567	netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2568	netdev->netdev_ops = &gelic_wl_netdevice_ops;
2569	netdev->wireless_data = &wl->wireless_data;
2570	netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2571	}
2572
2573	/*
2574	* driver probe/remove
2575	*/
2576	int gelic_wl_driver_probe(struct gelic_card *card)
2577	{
2578	int ret;
2579	struct net_device *netdev;
2580
2581	pr_debug("%s:start\n", __func__);
2582
2583	if (ps3_compare_firmware_version(1, 6, 0) < 0)
2584	return 0;
2585	if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2586	return 0;
2587
2588	/* alloc netdevice for wireless */
2589	netdev = gelic_wl_alloc(card);
2590	if (!netdev)
2591	return -ENOMEM;
2592
2593	/* setup net_device structure */
2594	SET_NETDEV_DEV(netdev, &card->dev->core);
2595	gelic_wl_setup_netdev_ops(netdev);
2596
2597	/* setup some of net_device and register it */
2598	ret = gelic_net_setup_netdev(netdev, card);
2599	if (ret)
2600	goto fail_setup;
2601	card->netdev[GELIC_PORT_WIRELESS] = netdev;
2602
2603	/* add enable wireless interrupt */
2604	card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2605	GELIC_CARD_WLAN_COMMAND_COMPLETED;
2606	/* to allow wireless commands while both interfaces are down */
2607	gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2608	GELIC_CARD_WLAN_COMMAND_COMPLETED);
2609	pr_debug("%s:end\n", __func__);
2610	return 0;
2611
2612	fail_setup:
2613	gelic_wl_free(wl: port_wl(port: netdev_port(d: netdev)));
2614
2615	return ret;
2616	}
2617
2618	int gelic_wl_driver_remove(struct gelic_card *card)
2619	{
2620	struct gelic_wl_info *wl;
2621	struct net_device *netdev;
2622
2623	pr_debug("%s:start\n", __func__);
2624
2625	if (ps3_compare_firmware_version(1, 6, 0) < 0)
2626	return 0;
2627	if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2628	return 0;
2629
2630	netdev = card->netdev[GELIC_PORT_WIRELESS];
2631	wl = port_wl(port: netdev_priv(dev: netdev));
2632
2633	/* if the interface was not up, but associated */
2634	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2635	gelic_wl_disconnect(netdev);
2636
2637	complete(&wl->cmd_done_intr);
2638
2639	/* cancel all work queue */
2640	cancel_delayed_work(dwork: &wl->assoc_work);
2641	cancel_delayed_work(dwork: &wl->event_work);
2642	flush_workqueue(wl->eurus_cmd_queue);
2643	flush_workqueue(wl->event_queue);
2644
2645	unregister_netdev(dev: netdev);
2646
2647	/* disable wireless interrupt */
2648	pr_debug("%s: disable intr\n", __func__);
2649	card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2650	GELIC_CARD_WLAN_COMMAND_COMPLETED);
2651	/* free bss list, netdev*/
2652	gelic_wl_free(wl);
2653	pr_debug("%s:end\n", __func__);
2654	return 0;
2655	}
2656