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
  50static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
  51			       u8 *essid, size_t essid_len);
  52static int gelic_wl_try_associate(struct net_device *netdev);
  53
  54/*
  55 * tables
  56 */
  57
  58/* 802.11b/g channel to freq in MHz */
  59static 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 */
  67static 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 */
  86static inline int wpa2_capable(void)
  87{
  88	return 0 <= ps3_compare_firmware_version(2, 0, 0);
  89}
  90
  91static inline int precise_ie(void)
  92{
  93	return 0 <= ps3_compare_firmware_version(2, 2, 0);
  94}
  95/*
  96 * post_eurus_cmd helpers
  97 */
  98struct 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
 103static 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
 116static 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
 147static inline const char *cmdstr(enum gelic_eurus_command ix)
 148{
 149	return "";
 150}
 151#endif
 152
 153/* synchronously do eurus commands */
 154static 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
 216static 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
 243static 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
 259static 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 */
 276static 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
 284static 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 */
 307static 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 */
 377static 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
 397static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
 398static 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 */
 405static 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
 512struct ie_item {
 513	u8 *data;
 514	u8 len;
 515};
 516
 517struct ie_info {
 518	struct ie_item wpa;
 519	struct ie_item rsn;
 520};
 521
 522static 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 */
 574static 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
 706static int gelic_wl_get_scan(struct net_device *netdev,
 707			     struct iw_request_info *info,
 708			     union iwreq_data *wrqu, char *extra)
 709{
 710	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 711	struct gelic_wl_scan_info *scan_info;
 712	char *ev = extra;
 713	char *stop = ev + wrqu->data.length;
 714	int ret = 0;
 715	unsigned long this_time = jiffies;
 716
 717	pr_debug("%s: <-\n", __func__);
 718	if (mutex_lock_interruptible(&wl->scan_lock))
 719		return -EAGAIN;
 720
 721	switch (wl->scan_stat) {
 722	case GELIC_WL_SCAN_STAT_SCANNING:
 723		/* If a scan in progress, caller should call me again */
 724		ret = -EAGAIN;
 725		goto out;
 726		break;
 727
 728	case GELIC_WL_SCAN_STAT_INIT:
 729		/* last scan request failed or never issued */
 730		ret = -ENODEV;
 731		goto out;
 732		break;
 733	case GELIC_WL_SCAN_STAT_GOT_LIST:
 734		/* ok, use current list */
 735		break;
 736	}
 737
 738	list_for_each_entry(scan_info, &wl->network_list, list) {
 739		if (wl->scan_age == 0 ||
 740		    time_after(scan_info->last_scanned + wl->scan_age,
 741			       this_time))
 742			ev = gelic_wl_translate_scan(netdev, info,
 743						     ev, stop,
 744						     scan_info);
 745		else
 746			pr_debug("%s:entry too old\n", __func__);
 747
 748		if (stop - ev <= IW_EV_ADDR_LEN) {
 749			ret = -E2BIG;
 750			goto out;
 751		}
 752	}
 753
 754	wrqu->data.length = ev - extra;
 755	wrqu->data.flags = 0;
 756out:
 757	mutex_unlock(&wl->scan_lock);
 758	pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
 759	return ret;
 760}
 761
 762#ifdef DEBUG
 763static void scan_list_dump(struct gelic_wl_info *wl)
 764{
 765	struct gelic_wl_scan_info *scan_info;
 766	int i;
 767
 768	i = 0;
 769	list_for_each_entry(scan_info, &wl->network_list, list) {
 770		pr_debug("%s: item %d\n", __func__, i++);
 771		pr_debug("valid=%d eurusindex=%d last=%lx\n",
 772			 scan_info->valid, scan_info->eurus_index,
 773			 scan_info->last_scanned);
 774		pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
 775			 scan_info->rate_len, scan_info->rate_ext_len,
 776			 scan_info->essid_len);
 777		/* -- */
 778		pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
 779		pr_debug("essid=%s\n", scan_info->hwinfo->essid);
 780	}
 781}
 782#endif
 783
 784static int gelic_wl_set_auth(struct net_device *netdev,
 785			     struct iw_request_info *info,
 786			     union iwreq_data *data, char *extra)
 787{
 788	struct iw_param *param = &data->param;
 789	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 790	unsigned long irqflag;
 791	int ret = 0;
 792
 793	pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
 794	spin_lock_irqsave(&wl->lock, irqflag);
 795	switch (param->flags & IW_AUTH_INDEX) {
 796	case IW_AUTH_WPA_VERSION:
 797		if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
 798			pr_debug("%s: NO WPA selected\n", __func__);
 799			wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 800			wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 801			wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 802		}
 803		if (param->value & IW_AUTH_WPA_VERSION_WPA) {
 804			pr_debug("%s: WPA version 1 selected\n", __func__);
 805			wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 806			wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 807			wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 808			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 809		}
 810		if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
 811			/*
 812			 * As the hypervisor may not tell the cipher
 813			 * information of the AP if it is WPA2,
 814			 * you will not decide suitable cipher from
 815			 * its beacon.
 816			 * You should have knowledge about the AP's
 817			 * cipher information in other method prior to
 818			 * the association.
 819			 */
 820			if (!precise_ie())
 821				pr_info("%s: WPA2 may not work\n", __func__);
 822			if (wpa2_capable()) {
 823				wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
 824				wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 825				wl->pairwise_cipher_method =
 826					GELIC_WL_CIPHER_AES;
 827				wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 828			} else
 829				ret = -EINVAL;
 830		}
 831		break;
 832
 833	case IW_AUTH_CIPHER_PAIRWISE:
 834		if (param->value &
 835		    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 836			pr_debug("%s: WEP selected\n", __func__);
 837			wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 838		}
 839		if (param->value & IW_AUTH_CIPHER_TKIP) {
 840			pr_debug("%s: TKIP selected\n", __func__);
 841			wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 842		}
 843		if (param->value & IW_AUTH_CIPHER_CCMP) {
 844			pr_debug("%s: CCMP selected\n", __func__);
 845			wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
 846		}
 847		if (param->value & IW_AUTH_CIPHER_NONE) {
 848			pr_debug("%s: no auth selected\n", __func__);
 849			wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
 850		}
 851		break;
 852	case IW_AUTH_CIPHER_GROUP:
 853		if (param->value &
 854		    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 855			pr_debug("%s: WEP selected\n", __func__);
 856			wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 857		}
 858		if (param->value & IW_AUTH_CIPHER_TKIP) {
 859			pr_debug("%s: TKIP selected\n", __func__);
 860			wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 861		}
 862		if (param->value & IW_AUTH_CIPHER_CCMP) {
 863			pr_debug("%s: CCMP selected\n", __func__);
 864			wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 865		}
 866		if (param->value & IW_AUTH_CIPHER_NONE) {
 867			pr_debug("%s: no auth selected\n", __func__);
 868			wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
 869		}
 870		break;
 871	case IW_AUTH_80211_AUTH_ALG:
 872		if (param->value & IW_AUTH_ALG_SHARED_KEY) {
 873			pr_debug("%s: shared key specified\n", __func__);
 874			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
 875		} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
 876			pr_debug("%s: open system specified\n", __func__);
 877			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 878		} else
 879			ret = -EINVAL;
 880		break;
 881
 882	case IW_AUTH_WPA_ENABLED:
 883		if (param->value) {
 884			pr_debug("%s: WPA enabled\n", __func__);
 885			wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 886		} else {
 887			pr_debug("%s: WPA disabled\n", __func__);
 888			wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 889		}
 890		break;
 891
 892	case IW_AUTH_KEY_MGMT:
 893		if (param->value & IW_AUTH_KEY_MGMT_PSK)
 894			break;
 895		/* intentionally fall through */
 896	default:
 897		ret = -EOPNOTSUPP;
 898		break;
 899	}
 900
 901	if (!ret)
 902		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 903
 904	spin_unlock_irqrestore(&wl->lock, irqflag);
 905	pr_debug("%s: -> %d\n", __func__, ret);
 906	return ret;
 907}
 908
 909static int gelic_wl_get_auth(struct net_device *netdev,
 910			     struct iw_request_info *info,
 911			     union iwreq_data *iwreq, char *extra)
 912{
 913	struct iw_param *param = &iwreq->param;
 914	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 915	unsigned long irqflag;
 916	int ret = 0;
 917
 918	pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
 919	spin_lock_irqsave(&wl->lock, irqflag);
 920	switch (param->flags & IW_AUTH_INDEX) {
 921	case IW_AUTH_WPA_VERSION:
 922		switch (wl->wpa_level) {
 923		case GELIC_WL_WPA_LEVEL_WPA:
 924			param->value |= IW_AUTH_WPA_VERSION_WPA;
 925			break;
 926		case GELIC_WL_WPA_LEVEL_WPA2:
 927			param->value |= IW_AUTH_WPA_VERSION_WPA2;
 928			break;
 929		default:
 930			param->value |= IW_AUTH_WPA_VERSION_DISABLED;
 931		}
 932		break;
 933
 934	case IW_AUTH_80211_AUTH_ALG:
 935		if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
 936			param->value = IW_AUTH_ALG_SHARED_KEY;
 937		else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
 938			param->value = IW_AUTH_ALG_OPEN_SYSTEM;
 939		break;
 940
 941	case IW_AUTH_WPA_ENABLED:
 942		switch (wl->wpa_level) {
 943		case GELIC_WL_WPA_LEVEL_WPA:
 944		case GELIC_WL_WPA_LEVEL_WPA2:
 945			param->value = 1;
 946			break;
 947		default:
 948			param->value = 0;
 949			break;
 950		}
 951		break;
 952	default:
 953		ret = -EOPNOTSUPP;
 954	}
 955
 956	spin_unlock_irqrestore(&wl->lock, irqflag);
 957	pr_debug("%s: -> %d\n", __func__, ret);
 958	return ret;
 959}
 960
 961/* SIOC{S,G}IWESSID */
 962static int gelic_wl_set_essid(struct net_device *netdev,
 963			      struct iw_request_info *info,
 964			      union iwreq_data *data, char *extra)
 965{
 966	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 967	unsigned long irqflag;
 968
 969	pr_debug("%s: <- l=%d f=%d\n", __func__,
 970		 data->essid.length, data->essid.flags);
 971	if (IW_ESSID_MAX_SIZE < data->essid.length)
 972		return -EINVAL;
 973
 974	spin_lock_irqsave(&wl->lock, irqflag);
 975	if (data->essid.flags) {
 976		wl->essid_len = data->essid.length;
 977		memcpy(wl->essid, extra, wl->essid_len);
 978		pr_debug("%s: essid = '%s'\n", __func__, extra);
 979		set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
 980	} else {
 981		pr_debug("%s: ESSID any\n", __func__);
 982		clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
 983	}
 984	set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 985	spin_unlock_irqrestore(&wl->lock, irqflag);
 986
 987
 988	gelic_wl_try_associate(netdev); /* FIXME */
 989	pr_debug("%s: ->\n", __func__);
 990	return 0;
 991}
 992
 993static int gelic_wl_get_essid(struct net_device *netdev,
 994			      struct iw_request_info *info,
 995			      union iwreq_data *data, char *extra)
 996{
 997	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 998	unsigned long irqflag;
 999
1000	pr_debug("%s: <-\n", __func__);
1001	mutex_lock(&wl->assoc_stat_lock);
1002	spin_lock_irqsave(&wl->lock, irqflag);
1003	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
1004	    wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1005		memcpy(extra, wl->essid, wl->essid_len);
1006		data->essid.length = wl->essid_len;
1007		data->essid.flags = 1;
1008	} else
1009		data->essid.flags = 0;
1010
1011	mutex_unlock(&wl->assoc_stat_lock);
1012	spin_unlock_irqrestore(&wl->lock, irqflag);
1013	pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
1014
1015	return 0;
1016}
1017
1018/* SIO{S,G}IWENCODE */
1019static int gelic_wl_set_encode(struct net_device *netdev,
1020			       struct iw_request_info *info,
1021			       union iwreq_data *data, char *extra)
1022{
1023	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1024	struct iw_point *enc = &data->encoding;
1025	__u16 flags;
1026	unsigned long irqflag;
1027	int key_index, index_specified;
1028	int ret = 0;
1029
1030	pr_debug("%s: <-\n", __func__);
1031	flags = enc->flags & IW_ENCODE_FLAGS;
1032	key_index = enc->flags & IW_ENCODE_INDEX;
1033
1034	pr_debug("%s: key_index = %d\n", __func__, key_index);
1035	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1036	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1037
1038	if (GELIC_WEP_KEYS < key_index)
1039		return -EINVAL;
1040
1041	spin_lock_irqsave(&wl->lock, irqflag);
1042	if (key_index) {
1043		index_specified = 1;
1044		key_index--;
1045	} else {
1046		index_specified = 0;
1047		key_index = wl->current_key;
1048	}
1049
1050	if (flags & IW_ENCODE_NOKEY) {
1051		/* if just IW_ENCODE_NOKEY, change current key index */
1052		if (!flags && index_specified) {
1053			wl->current_key = key_index;
1054			goto done;
1055		}
1056
1057		if (flags & IW_ENCODE_DISABLED) {
1058			if (!index_specified) {
1059				/* disable encryption */
1060				wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1061				wl->pairwise_cipher_method =
1062					GELIC_WL_CIPHER_NONE;
1063				/* invalidate all key */
1064				wl->key_enabled = 0;
1065			} else
1066				clear_bit(key_index, &wl->key_enabled);
1067		}
1068
1069		if (flags & IW_ENCODE_OPEN)
1070			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1071		if (flags & IW_ENCODE_RESTRICTED) {
1072			pr_info("%s: shared key mode enabled\n", __func__);
1073			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1074		}
1075	} else {
1076		if (IW_ENCODING_TOKEN_MAX < enc->length) {
1077			ret = -EINVAL;
1078			goto done;
1079		}
1080		wl->key_len[key_index] = enc->length;
1081		memcpy(wl->key[key_index], extra, enc->length);
1082		set_bit(key_index, &wl->key_enabled);
1083		wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1084		wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1085	}
1086	set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1087done:
1088	spin_unlock_irqrestore(&wl->lock, irqflag);
1089	pr_debug("%s: ->\n", __func__);
1090	return ret;
1091}
1092
1093static int gelic_wl_get_encode(struct net_device *netdev,
1094			       struct iw_request_info *info,
1095			       union iwreq_data *data, char *extra)
1096{
1097	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1098	struct iw_point *enc = &data->encoding;
1099	unsigned long irqflag;
1100	unsigned int key_index, index_specified;
1101	int ret = 0;
1102
1103	pr_debug("%s: <-\n", __func__);
1104	key_index = enc->flags & IW_ENCODE_INDEX;
1105	pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1106		 enc->flags, enc->pointer, enc->length, extra);
1107	if (GELIC_WEP_KEYS < key_index)
1108		return -EINVAL;
1109
1110	spin_lock_irqsave(&wl->lock, irqflag);
1111	if (key_index) {
1112		index_specified = 1;
1113		key_index--;
1114	} else {
1115		index_specified = 0;
1116		key_index = wl->current_key;
1117	}
1118
1119	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1120		switch (wl->auth_method) {
1121		case GELIC_EURUS_AUTH_OPEN:
1122			enc->flags = IW_ENCODE_OPEN;
1123			break;
1124		case GELIC_EURUS_AUTH_SHARED:
1125			enc->flags = IW_ENCODE_RESTRICTED;
1126			break;
1127		}
1128	} else
1129		enc->flags = IW_ENCODE_DISABLED;
1130
1131	if (test_bit(key_index, &wl->key_enabled)) {
1132		if (enc->length < wl->key_len[key_index]) {
1133			ret = -EINVAL;
1134			goto done;
1135		}
1136		enc->length = wl->key_len[key_index];
1137		memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1138	} else {
1139		enc->length = 0;
1140		enc->flags |= IW_ENCODE_NOKEY;
1141	}
1142	enc->flags |= key_index + 1;
1143	pr_debug("%s: -> flag=%x len=%d\n", __func__,
1144		 enc->flags, enc->length);
1145
1146done:
1147	spin_unlock_irqrestore(&wl->lock, irqflag);
1148	return ret;
1149}
1150
1151/* SIOC{S,G}IWAP */
1152static int gelic_wl_set_ap(struct net_device *netdev,
1153			   struct iw_request_info *info,
1154			   union iwreq_data *data, char *extra)
1155{
1156	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1157	unsigned long irqflag;
1158
1159	pr_debug("%s: <-\n", __func__);
1160	if (data->ap_addr.sa_family != ARPHRD_ETHER)
1161		return -EINVAL;
1162
1163	spin_lock_irqsave(&wl->lock, irqflag);
1164	if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1165		memcpy(wl->bssid, data->ap_addr.sa_data,
1166		       ETH_ALEN);
1167		set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1168		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1169		pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1170	} else {
1171		pr_debug("%s: clear bssid\n", __func__);
1172		clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1173		memset(wl->bssid, 0, ETH_ALEN);
1174	}
1175	spin_unlock_irqrestore(&wl->lock, irqflag);
1176	pr_debug("%s: ->\n", __func__);
1177	return 0;
1178}
1179
1180static int gelic_wl_get_ap(struct net_device *netdev,
1181			   struct iw_request_info *info,
1182			   union iwreq_data *data, char *extra)
1183{
1184	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1185	unsigned long irqflag;
1186
1187	pr_debug("%s: <-\n", __func__);
1188	mutex_lock(&wl->assoc_stat_lock);
1189	spin_lock_irqsave(&wl->lock, irqflag);
1190	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1191		data->ap_addr.sa_family = ARPHRD_ETHER;
1192		memcpy(data->ap_addr.sa_data, wl->active_bssid,
1193		       ETH_ALEN);
1194	} else
1195		memset(data->ap_addr.sa_data, 0, ETH_ALEN);
1196
1197	spin_unlock_irqrestore(&wl->lock, irqflag);
1198	mutex_unlock(&wl->assoc_stat_lock);
1199	pr_debug("%s: ->\n", __func__);
1200	return 0;
1201}
1202
1203/* SIOC{S,G}IWENCODEEXT */
1204static int gelic_wl_set_encodeext(struct net_device *netdev,
1205				  struct iw_request_info *info,
1206				  union iwreq_data *data, char *extra)
1207{
1208	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1209	struct iw_point *enc = &data->encoding;
1210	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1211	__u16 alg;
1212	__u16 flags;
1213	unsigned long irqflag;
1214	int key_index;
1215	int ret = 0;
1216
1217	pr_debug("%s: <-\n", __func__);
1218	flags = enc->flags & IW_ENCODE_FLAGS;
1219	alg = ext->alg;
1220	key_index = enc->flags & IW_ENCODE_INDEX;
1221
1222	pr_debug("%s: key_index = %d\n", __func__, key_index);
1223	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1224	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1225	pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1226	pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1227
1228	if (GELIC_WEP_KEYS < key_index)
1229		return -EINVAL;
1230
1231	spin_lock_irqsave(&wl->lock, irqflag);
1232	if (key_index)
1233		key_index--;
1234	else
1235		key_index = wl->current_key;
1236
1237	if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1238		/* reques to change default key index */
1239		pr_debug("%s: request to change default key to %d\n",
1240			 __func__, key_index);
1241		wl->current_key = key_index;
1242		goto done;
1243	}
1244
1245	if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1246		pr_debug("%s: alg disabled\n", __func__);
1247		wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1248		wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1249		wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1250		wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1251	} else if (alg == IW_ENCODE_ALG_WEP) {
1252		pr_debug("%s: WEP requested\n", __func__);
1253		if (flags & IW_ENCODE_OPEN) {
1254			pr_debug("%s: open key mode\n", __func__);
1255			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1256		}
1257		if (flags & IW_ENCODE_RESTRICTED) {
1258			pr_debug("%s: shared key mode\n", __func__);
1259			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1260		}
1261		if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1262			pr_info("%s: key is too long %d\n", __func__,
1263				ext->key_len);
1264			ret = -EINVAL;
1265			goto done;
1266		}
1267		/* OK, update the key */
1268		wl->key_len[key_index] = ext->key_len;
1269		memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1270		memcpy(wl->key[key_index], ext->key, ext->key_len);
1271		set_bit(key_index, &wl->key_enabled);
1272		/* remember wep info changed */
1273		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1274	} else if (alg == IW_ENCODE_ALG_PMK) {
1275		if (ext->key_len != WPA_PSK_LEN) {
1276			pr_err("%s: PSK length wrong %d\n", __func__,
1277			       ext->key_len);
1278			ret = -EINVAL;
1279			goto done;
1280		}
1281		memset(wl->psk, 0, sizeof(wl->psk));
1282		memcpy(wl->psk, ext->key, ext->key_len);
1283		wl->psk_len = ext->key_len;
1284		wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1285		/* remember PSK configured */
1286		set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1287	}
1288done:
1289	spin_unlock_irqrestore(&wl->lock, irqflag);
1290	pr_debug("%s: ->\n", __func__);
1291	return ret;
1292}
1293
1294static int gelic_wl_get_encodeext(struct net_device *netdev,
1295				  struct iw_request_info *info,
1296				  union iwreq_data *data, char *extra)
1297{
1298	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1299	struct iw_point *enc = &data->encoding;
1300	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1301	unsigned long irqflag;
1302	int key_index;
1303	int ret = 0;
1304	int max_key_len;
1305
1306	pr_debug("%s: <-\n", __func__);
1307
1308	max_key_len = enc->length - sizeof(struct iw_encode_ext);
1309	if (max_key_len < 0)
1310		return -EINVAL;
1311	key_index = enc->flags & IW_ENCODE_INDEX;
1312
1313	pr_debug("%s: key_index = %d\n", __func__, key_index);
1314	pr_debug("%s: key_len = %d\n", __func__, enc->length);
1315	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1316
1317	if (GELIC_WEP_KEYS < key_index)
1318		return -EINVAL;
1319
1320	spin_lock_irqsave(&wl->lock, irqflag);
1321	if (key_index)
1322		key_index--;
1323	else
1324		key_index = wl->current_key;
1325
1326	memset(ext, 0, sizeof(struct iw_encode_ext));
1327	switch (wl->group_cipher_method) {
1328	case GELIC_WL_CIPHER_WEP:
1329		ext->alg = IW_ENCODE_ALG_WEP;
1330		enc->flags |= IW_ENCODE_ENABLED;
1331		break;
1332	case GELIC_WL_CIPHER_TKIP:
1333		ext->alg = IW_ENCODE_ALG_TKIP;
1334		enc->flags |= IW_ENCODE_ENABLED;
1335		break;
1336	case GELIC_WL_CIPHER_AES:
1337		ext->alg = IW_ENCODE_ALG_CCMP;
1338		enc->flags |= IW_ENCODE_ENABLED;
1339		break;
1340	case GELIC_WL_CIPHER_NONE:
1341	default:
1342		ext->alg = IW_ENCODE_ALG_NONE;
1343		enc->flags |= IW_ENCODE_NOKEY;
1344		break;
1345	}
1346
1347	if (!(enc->flags & IW_ENCODE_NOKEY)) {
1348		if (max_key_len < wl->key_len[key_index]) {
1349			ret = -E2BIG;
1350			goto out;
1351		}
1352		if (test_bit(key_index, &wl->key_enabled))
1353			memcpy(ext->key, wl->key[key_index],
1354			       wl->key_len[key_index]);
1355		else
1356			pr_debug("%s: disabled key requested ix=%d\n",
1357				 __func__, key_index);
1358	}
1359out:
1360	spin_unlock_irqrestore(&wl->lock, irqflag);
1361	pr_debug("%s: ->\n", __func__);
1362	return ret;
1363}
1364/* SIOC{S,G}IWMODE */
1365static int gelic_wl_set_mode(struct net_device *netdev,
1366			     struct iw_request_info *info,
1367			     union iwreq_data *data, char *extra)
1368{
1369	__u32 mode = data->mode;
1370	int ret;
1371
1372	pr_debug("%s: <-\n", __func__);
1373	if (mode == IW_MODE_INFRA)
1374		ret = 0;
1375	else
1376		ret = -EOPNOTSUPP;
1377	pr_debug("%s: -> %d\n", __func__, ret);
1378	return ret;
1379}
1380
1381static int gelic_wl_get_mode(struct net_device *netdev,
1382			     struct iw_request_info *info,
1383			     union iwreq_data *data, char *extra)
1384{
1385	__u32 *mode = &data->mode;
1386	pr_debug("%s: <-\n", __func__);
1387	*mode = IW_MODE_INFRA;
1388	pr_debug("%s: ->\n", __func__);
1389	return 0;
1390}
1391
1392/* SIOCGIWNICKN */
1393static int gelic_wl_get_nick(struct net_device *net_dev,
1394				  struct iw_request_info *info,
1395				  union iwreq_data *data, char *extra)
1396{
1397	strcpy(extra, "gelic_wl");
1398	data->data.length = strlen(extra);
1399	data->data.flags = 1;
1400	return 0;
1401}
1402
1403
1404/* --- */
1405
1406static struct iw_statistics *gelic_wl_get_wireless_stats(
1407	struct net_device *netdev)
1408{
1409
1410	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1411	struct gelic_eurus_cmd *cmd;
1412	struct iw_statistics *is;
1413	struct gelic_eurus_rssi_info *rssi;
1414	void *buf;
1415
1416	pr_debug("%s: <-\n", __func__);
1417
1418	buf = (void *)__get_free_page(GFP_KERNEL);
1419	if (!buf)
1420		return NULL;
1421
1422	is = &wl->iwstat;
1423	memset(is, 0, sizeof(*is));
1424	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1425				   buf, sizeof(*rssi));
1426	if (cmd && !cmd->status && !cmd->cmd_status) {
1427		rssi = buf;
1428		is->qual.level = be16_to_cpu(rssi->rssi);
1429		is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1430			IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1431	} else
1432		/* not associated */
1433		is->qual.updated = IW_QUAL_ALL_INVALID;
1434
1435	kfree(cmd);
1436	free_page((unsigned long)buf);
1437	pr_debug("%s: ->\n", __func__);
1438	return is;
1439}
1440
1441/*
1442 *  scanning helpers
1443 */
1444static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1445			       u8 *essid, size_t essid_len)
1446{
1447	struct gelic_eurus_cmd *cmd;
1448	int ret = 0;
1449	void *buf = NULL;
1450	size_t len;
1451
1452	pr_debug("%s: <- always=%d\n", __func__, always_scan);
1453	if (mutex_lock_interruptible(&wl->scan_lock))
1454		return -ERESTARTSYS;
1455
1456	/*
1457	 * If already a scan in progress, do not trigger more
1458	 */
1459	if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1460		pr_debug("%s: scanning now\n", __func__);
1461		goto out;
1462	}
1463
1464	init_completion(&wl->scan_done);
1465	/*
1466	 * If we have already a bss list, don't try to get new
1467	 * unless we are doing an ESSID scan
1468	 */
1469	if ((!essid_len && !always_scan)
1470	    && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1471		pr_debug("%s: already has the list\n", __func__);
1472		complete(&wl->scan_done);
1473		goto out;
1474	}
1475
1476	/* ESSID scan ? */
1477	if (essid_len && essid) {
1478		buf = (void *)__get_free_page(GFP_KERNEL);
1479		if (!buf) {
1480			ret = -ENOMEM;
1481			goto out;
1482		}
1483		len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1484		memset(buf, 0, len);
1485		memcpy(buf, essid, essid_len);
1486		pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1487	} else
1488		len = 0;
1489
1490	/*
1491	 * issue start scan request
1492	 */
1493	wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1494	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1495				   buf, len);
1496	if (!cmd || cmd->status || cmd->cmd_status) {
1497		wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1498		complete(&wl->scan_done);
1499		ret = -ENOMEM;
1500		goto out;
1501	}
1502	kfree(cmd);
1503out:
1504	free_page((unsigned long)buf);
1505	mutex_unlock(&wl->scan_lock);
1506	pr_debug("%s: ->\n", __func__);
1507	return ret;
1508}
1509
1510/*
1511 * retrieve scan result from the chip (hypervisor)
1512 * this function is invoked by schedule work.
1513 */
1514static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1515{
1516	struct gelic_eurus_cmd *cmd = NULL;
1517	struct gelic_wl_scan_info *target, *tmp;
1518	struct gelic_wl_scan_info *oldest = NULL;
1519	struct gelic_eurus_scan_info *scan_info;
1520	unsigned int scan_info_size;
1521	union iwreq_data data;
1522	unsigned long this_time = jiffies;
1523	unsigned int data_len, i, found, r;
1524	void *buf;
1525
1526	pr_debug("%s:start\n", __func__);
1527	mutex_lock(&wl->scan_lock);
1528
1529	buf = (void *)__get_free_page(GFP_KERNEL);
1530	if (!buf) {
1531		pr_info("%s: scan buffer alloc failed\n", __func__);
1532		goto out;
1533	}
1534
1535	if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1536		/*
1537		 * stop() may be called while scanning, ignore result
1538		 */
1539		pr_debug("%s: scan complete when stat != scanning(%d)\n",
1540			 __func__, wl->scan_stat);
1541		goto out;
1542	}
1543
1544	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1545				   buf, PAGE_SIZE);
1546	if (!cmd || cmd->status || cmd->cmd_status) {
1547		wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1548		pr_info("%s:cmd failed\n", __func__);
1549		kfree(cmd);
1550		goto out;
1551	}
1552	data_len = cmd->size;
1553	pr_debug("%s: data_len = %d\n", __func__, data_len);
1554	kfree(cmd);
1555
1556	/* OK, bss list retrieved */
1557	wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1558
1559	/* mark all entries are old */
1560	list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1561		target->valid = 0;
1562		/* expire too old entries */
1563		if (time_before(target->last_scanned + wl->scan_age,
1564				this_time)) {
1565			kfree(target->hwinfo);
1566			target->hwinfo = NULL;
1567			list_move_tail(&target->list, &wl->network_free_list);
1568		}
1569	}
1570
1571	/* put them in the network_list */
1572	for (i = 0, scan_info_size = 0, scan_info = buf;
1573	     scan_info_size < data_len;
1574	     i++, scan_info_size += be16_to_cpu(scan_info->size),
1575	     scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1576		pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1577			 be16_to_cpu(scan_info->size),
1578			 &scan_info->bssid[2], scan_info);
1579
1580		/*
1581		 * The wireless firmware may return invalid channel 0 and/or
1582		 * invalid rate if the AP emits zero length SSID ie. As this
1583		 * scan information is useless, ignore it
1584		 */
1585		if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1586			pr_debug("%s: invalid scan info\n", __func__);
1587			continue;
1588		}
1589
1590		found = 0;
1591		oldest = NULL;
1592		list_for_each_entry(target, &wl->network_list, list) {
1593			if (ether_addr_equal(&target->hwinfo->bssid[2],
1594					     &scan_info->bssid[2])) {
1595				found = 1;
1596				pr_debug("%s: same BBS found scanned list\n",
1597					 __func__);
1598				break;
1599			}
1600			if (!oldest ||
1601			    (target->last_scanned < oldest->last_scanned))
1602				oldest = target;
1603		}
1604
1605		if (!found) {
1606			/* not found in the list */
1607			if (list_empty(&wl->network_free_list)) {
1608				/* expire oldest */
1609				target = oldest;
1610			} else {
1611				target = list_entry(wl->network_free_list.next,
1612						    struct gelic_wl_scan_info,
1613						    list);
1614			}
1615		}
1616
1617		/* update the item */
1618		target->last_scanned = this_time;
1619		target->valid = 1;
1620		target->eurus_index = i;
1621		kfree(target->hwinfo);
1622		target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
 
1623					 GFP_KERNEL);
1624		if (!target->hwinfo)
1625			continue;
1626
1627		/* copy hw scan info */
1628		memcpy(target->hwinfo, scan_info, scan_info->size);
1629		target->essid_len = strnlen(scan_info->essid,
1630					    sizeof(scan_info->essid));
1631		target->rate_len = 0;
1632		for (r = 0; r < 12; r++)
1633			if (scan_info->rate[r])
1634				target->rate_len++;
1635		if (8 < target->rate_len)
1636			pr_info("%s: AP returns %d rates\n", __func__,
1637				target->rate_len);
1638		target->rate_ext_len = 0;
1639		for (r = 0; r < 16; r++)
1640			if (scan_info->ext_rate[r])
1641				target->rate_ext_len++;
1642		list_move_tail(&target->list, &wl->network_list);
1643	}
1644	memset(&data, 0, sizeof(data));
1645	wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1646			    NULL);
1647out:
1648	free_page((unsigned long)buf);
1649	complete(&wl->scan_done);
1650	mutex_unlock(&wl->scan_lock);
1651	pr_debug("%s:end\n", __func__);
1652}
1653
1654/*
1655 * Select an appropriate bss from current scan list regarding
1656 * current settings from userspace.
1657 * The caller must hold wl->scan_lock,
1658 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1659 */
1660static void update_best(struct gelic_wl_scan_info **best,
1661			struct gelic_wl_scan_info *candid,
1662			int *best_weight,
1663			int *weight)
1664{
1665	if (*best_weight < ++(*weight)) {
1666		*best_weight = *weight;
1667		*best = candid;
1668	}
1669}
1670
1671static
1672struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1673{
1674	struct gelic_wl_scan_info *scan_info;
1675	struct gelic_wl_scan_info *best_bss;
1676	int weight, best_weight;
1677	u16 security;
1678
1679	pr_debug("%s: <-\n", __func__);
1680
1681	best_bss = NULL;
1682	best_weight = 0;
1683
1684	list_for_each_entry(scan_info, &wl->network_list, list) {
1685		pr_debug("%s: station %p\n", __func__, scan_info);
1686
1687		if (!scan_info->valid) {
1688			pr_debug("%s: station invalid\n", __func__);
1689			continue;
1690		}
1691
1692		/* If bss specified, check it only */
1693		if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1694			if (ether_addr_equal(&scan_info->hwinfo->bssid[2],
1695					     wl->bssid)) {
1696				best_bss = scan_info;
1697				pr_debug("%s: bssid matched\n", __func__);
1698				break;
1699			} else {
1700				pr_debug("%s: bssid unmached\n", __func__);
1701				continue;
1702			}
1703		}
1704
1705		weight = 0;
1706
1707		/* security */
1708		security = be16_to_cpu(scan_info->hwinfo->security) &
1709			GELIC_EURUS_SCAN_SEC_MASK;
1710		if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1711			if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1712				update_best(&best_bss, scan_info,
1713					    &best_weight, &weight);
1714			else
1715				continue;
1716		} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1717			if (security == GELIC_EURUS_SCAN_SEC_WPA)
1718				update_best(&best_bss, scan_info,
1719					    &best_weight, &weight);
1720			else
1721				continue;
1722		} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1723			   wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1724			if (security == GELIC_EURUS_SCAN_SEC_WEP)
1725				update_best(&best_bss, scan_info,
1726					    &best_weight, &weight);
1727			else
1728				continue;
1729		}
1730
1731		/* If ESSID is set, check it */
1732		if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1733			if ((scan_info->essid_len == wl->essid_len) &&
1734			    !strncmp(wl->essid,
1735				     scan_info->hwinfo->essid,
1736				     scan_info->essid_len))
1737				update_best(&best_bss, scan_info,
1738					    &best_weight, &weight);
1739			else
1740				continue;
1741		}
1742	}
1743
1744#ifdef DEBUG
1745	pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1746	if (best_bss) {
1747		pr_debug("%s:addr=%pM\n", __func__,
1748			 &best_bss->hwinfo->bssid[2]);
1749	}
1750#endif
1751	return best_bss;
1752}
1753
1754/*
1755 * Setup WEP configuration to the chip
1756 * The caller must hold wl->scan_lock,
1757 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1758 */
1759static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1760{
1761	unsigned int i;
1762	struct gelic_eurus_wep_cfg *wep;
1763	struct gelic_eurus_cmd *cmd;
1764	int wep104 = 0;
1765	int have_key = 0;
1766	int ret = 0;
1767
1768	pr_debug("%s: <-\n", __func__);
1769	/* we can assume no one should uses the buffer */
1770	wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1771	if (!wep)
1772		return -ENOMEM;
1773
1774	memset(wep, 0, sizeof(*wep));
1775
1776	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1777		pr_debug("%s: WEP mode\n", __func__);
1778		for (i = 0; i < GELIC_WEP_KEYS; i++) {
1779			if (!test_bit(i, &wl->key_enabled))
1780				continue;
1781
1782			pr_debug("%s: key#%d enabled\n", __func__, i);
1783			have_key = 1;
1784			if (wl->key_len[i] == 13)
1785				wep104 = 1;
1786			else if (wl->key_len[i] != 5) {
1787				pr_info("%s: wrong wep key[%d]=%d\n",
1788					__func__, i, wl->key_len[i]);
1789				ret = -EINVAL;
1790				goto out;
1791			}
1792			memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1793		}
1794
1795		if (!have_key) {
1796			pr_info("%s: all wep key disabled\n", __func__);
1797			ret = -EINVAL;
1798			goto out;
1799		}
1800
1801		if (wep104) {
1802			pr_debug("%s: 104bit key\n", __func__);
1803			wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1804		} else {
1805			pr_debug("%s: 40bit key\n", __func__);
1806			wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1807		}
1808	} else {
1809		pr_debug("%s: NO encryption\n", __func__);
1810		wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1811	}
1812
1813	/* issue wep setup */
1814	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1815				   wep, sizeof(*wep));
1816	if (!cmd)
1817		ret = -ENOMEM;
1818	else if (cmd->status || cmd->cmd_status)
1819		ret = -ENXIO;
1820
1821	kfree(cmd);
1822out:
1823	free_page((unsigned long)wep);
1824	pr_debug("%s: ->\n", __func__);
1825	return ret;
1826}
1827
1828#ifdef DEBUG
1829static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1830{
1831	switch (sec) {
1832	case GELIC_EURUS_WPA_SEC_NONE:
1833		return "NONE";
1834		break;
1835	case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1836		return "WPA_TKIP_TKIP";
1837		break;
1838	case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1839		return "WPA_TKIP_AES";
1840		break;
1841	case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1842		return "WPA_AES_AES";
1843		break;
1844	case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1845		return "WPA2_TKIP_TKIP";
1846		break;
1847	case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1848		return "WPA2_TKIP_AES";
1849		break;
1850	case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1851		return "WPA2_AES_AES";
1852		break;
1853	}
1854	return "";
1855};
1856#endif
1857
1858static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1859{
1860	struct gelic_eurus_wpa_cfg *wpa;
1861	struct gelic_eurus_cmd *cmd;
1862	u16 security;
1863	int ret = 0;
1864
1865	pr_debug("%s: <-\n", __func__);
1866	/* we can assume no one should uses the buffer */
1867	wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1868	if (!wpa)
1869		return -ENOMEM;
1870
1871	memset(wpa, 0, sizeof(*wpa));
1872
1873	if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1874		pr_info("%s: PSK not configured yet\n", __func__);
1875
1876	/* copy key */
1877	memcpy(wpa->psk, wl->psk, wl->psk_len);
1878
1879	/* set security level */
1880	if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1881		if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1882			security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1883		} else {
1884			if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1885			    precise_ie())
1886				security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1887			else
1888				security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1889		}
1890	} else {
1891		if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1892			security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1893		} else {
1894			if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1895			    precise_ie())
1896				security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1897			else
1898				security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1899		}
1900	}
1901	wpa->security = cpu_to_be16(security);
1902
1903	/* PSK type */
1904	wpa->psk_type = cpu_to_be16(wl->psk_type);
1905#ifdef DEBUG
1906	pr_debug("%s: sec=%s psktype=%s\n", __func__,
1907		 wpasecstr(wpa->security),
1908		 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1909		 "BIN" : "passphrase");
1910#if 0
1911	/*
1912	 * don't enable here if you plan to submit
1913	 * the debug log because this dumps your precious
1914	 * passphrase/key.
1915	 */
1916	pr_debug("%s: psk=%s\n", __func__,
1917		 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1918		 "N/A" : wpa->psk);
1919#endif
1920#endif
1921	/* issue wpa setup */
1922	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1923				   wpa, sizeof(*wpa));
1924	if (!cmd)
1925		ret = -ENOMEM;
1926	else if (cmd->status || cmd->cmd_status)
1927		ret = -ENXIO;
1928	kfree(cmd);
1929	free_page((unsigned long)wpa);
1930	pr_debug("%s: --> %d\n", __func__, ret);
1931	return ret;
1932}
1933
1934/*
1935 * Start association. caller must hold assoc_stat_lock
1936 */
1937static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1938				  struct gelic_wl_scan_info *bss)
1939{
1940	struct gelic_eurus_cmd *cmd;
1941	struct gelic_eurus_common_cfg *common;
1942	int ret = 0;
1943	unsigned long rc;
1944
1945	pr_debug("%s: <-\n", __func__);
1946
1947	/* do common config */
1948	common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1949	if (!common)
1950		return -ENOMEM;
1951
1952	memset(common, 0, sizeof(*common));
1953	common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1954	common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1955
1956	common->scan_index = cpu_to_be16(bss->eurus_index);
1957	switch (wl->auth_method) {
1958	case GELIC_EURUS_AUTH_OPEN:
1959		common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1960		break;
1961	case GELIC_EURUS_AUTH_SHARED:
1962		common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1963		break;
1964	}
1965
1966#ifdef DEBUG
1967	scan_list_dump(wl);
1968#endif
1969	pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1970		 be16_to_cpu(common->scan_index),
1971		 be16_to_cpu(common->bss_type),
1972		 be16_to_cpu(common->auth_method));
1973
1974	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1975				   common, sizeof(*common));
1976	if (!cmd || cmd->status || cmd->cmd_status) {
1977		ret = -ENOMEM;
1978		kfree(cmd);
1979		goto out;
1980	}
1981	kfree(cmd);
1982
1983	/* WEP/WPA */
1984	switch (wl->wpa_level) {
1985	case GELIC_WL_WPA_LEVEL_NONE:
1986		/* If WEP or no security, setup WEP config */
1987		ret = gelic_wl_do_wep_setup(wl);
1988		break;
1989	case GELIC_WL_WPA_LEVEL_WPA:
1990	case GELIC_WL_WPA_LEVEL_WPA2:
1991		ret = gelic_wl_do_wpa_setup(wl);
1992		break;
1993	}
1994
1995	if (ret) {
1996		pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1997			 ret);
1998		ret = -EPERM;
1999		gelic_wl_send_iwap_event(wl, NULL);
2000		goto out;
2001	}
2002
2003	/* start association */
2004	init_completion(&wl->assoc_done);
2005	wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2006	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2007				   NULL, 0);
2008	if (!cmd || cmd->status || cmd->cmd_status) {
2009		pr_debug("%s: assoc request failed\n", __func__);
2010		wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2011		kfree(cmd);
2012		ret = -ENOMEM;
2013		gelic_wl_send_iwap_event(wl, NULL);
2014		goto out;
2015	}
2016	kfree(cmd);
2017
2018	/* wait for connected event */
2019	rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2020
2021	if (!rc) {
2022		/* timeouted.  Maybe key or cyrpt mode is wrong */
2023		pr_info("%s: connect timeout\n", __func__);
2024		cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2025					   NULL, 0);
2026		kfree(cmd);
2027		wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2028		gelic_wl_send_iwap_event(wl, NULL);
2029		ret = -ENXIO;
2030	} else {
2031		wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2032		/* copy bssid */
2033		memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2034
2035		/* send connect event */
2036		gelic_wl_send_iwap_event(wl, wl->active_bssid);
2037		pr_info("%s: connected\n", __func__);
2038	}
2039out:
2040	free_page((unsigned long)common);
2041	pr_debug("%s: ->\n", __func__);
2042	return ret;
2043}
2044
2045/*
2046 * connected event
2047 */
2048static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2049				     u64 event)
2050{
2051	u64 desired_event = 0;
2052
2053	switch (wl->wpa_level) {
2054	case GELIC_WL_WPA_LEVEL_NONE:
2055		desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2056		break;
2057	case GELIC_WL_WPA_LEVEL_WPA:
2058	case GELIC_WL_WPA_LEVEL_WPA2:
2059		desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2060		break;
2061	}
2062
2063	if (desired_event == event) {
2064		pr_debug("%s: completed\n", __func__);
2065		complete(&wl->assoc_done);
2066		netif_carrier_on(port_to_netdev(wl_port(wl)));
2067	} else
2068		pr_debug("%s: event %#llx under wpa\n",
2069				 __func__, event);
2070}
2071
2072/*
2073 * disconnect event
2074 */
2075static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2076				      u64 event)
2077{
2078	struct gelic_eurus_cmd *cmd;
2079	int lock;
2080
2081	/*
2082	 * If we fall here in the middle of association,
2083	 * associate_bss() should be waiting for complation of
2084	 * wl->assoc_done.
2085	 * As it waits with timeout, just leave assoc_done
2086	 * uncompleted, then it terminates with timeout
2087	 */
2088	if (!mutex_trylock(&wl->assoc_stat_lock)) {
2089		pr_debug("%s: already locked\n", __func__);
2090		lock = 0;
2091	} else {
2092		pr_debug("%s: obtain lock\n", __func__);
2093		lock = 1;
2094	}
2095
2096	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2097	kfree(cmd);
2098
2099	/* send disconnected event to the supplicant */
2100	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2101		gelic_wl_send_iwap_event(wl, NULL);
2102
2103	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2104	netif_carrier_off(port_to_netdev(wl_port(wl)));
2105
2106	if (lock)
2107		mutex_unlock(&wl->assoc_stat_lock);
2108}
2109/*
2110 * event worker
2111 */
2112#ifdef DEBUG
2113static const char *eventstr(enum gelic_lv1_wl_event event)
2114{
2115	static char buf[32];
2116	char *ret;
2117	if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2118		ret = "EURUS_READY";
2119	else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2120		ret = "SCAN_COMPLETED";
2121	else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2122		ret = "DEAUTH";
2123	else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2124		ret = "BEACON_LOST";
2125	else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2126		ret = "CONNECTED";
2127	else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2128		ret = "WPA_CONNECTED";
2129	else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2130		ret = "WPA_ERROR";
2131	else {
2132		sprintf(buf, "Unknown(%#x)", event);
2133		ret = buf;
2134	}
2135	return ret;
2136}
2137#else
2138static const char *eventstr(enum gelic_lv1_wl_event event)
2139{
2140	return NULL;
2141}
2142#endif
2143static void gelic_wl_event_worker(struct work_struct *work)
2144{
2145	struct gelic_wl_info *wl;
2146	struct gelic_port *port;
2147	u64 event, tmp;
2148	int status;
2149
2150	pr_debug("%s:start\n", __func__);
2151	wl = container_of(work, struct gelic_wl_info, event_work.work);
2152	port = wl_port(wl);
2153	while (1) {
2154		status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2155					 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2156					 &event, &tmp);
2157		if (status) {
2158			if (status != LV1_NO_ENTRY)
2159				pr_debug("%s:wlan event failed %d\n",
2160					 __func__, status);
2161			/* got all events */
2162			pr_debug("%s:end\n", __func__);
2163			return;
2164		}
2165		pr_debug("%s: event=%s\n", __func__, eventstr(event));
2166		switch (event) {
2167		case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2168			gelic_wl_scan_complete_event(wl);
2169			break;
2170		case GELIC_LV1_WL_EVENT_BEACON_LOST:
2171		case GELIC_LV1_WL_EVENT_DEAUTH:
2172			gelic_wl_disconnect_event(wl, event);
2173			break;
2174		case GELIC_LV1_WL_EVENT_CONNECTED:
2175		case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2176			gelic_wl_connected_event(wl, event);
2177			break;
2178		default:
2179			break;
2180		}
2181	} /* while */
2182}
2183/*
2184 * association worker
2185 */
2186static void gelic_wl_assoc_worker(struct work_struct *work)
2187{
2188	struct gelic_wl_info *wl;
2189
2190	struct gelic_wl_scan_info *best_bss;
2191	int ret;
2192	unsigned long irqflag;
2193	u8 *essid;
2194	size_t essid_len;
2195
2196	wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2197
2198	mutex_lock(&wl->assoc_stat_lock);
2199
2200	if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2201		goto out;
2202
2203	spin_lock_irqsave(&wl->lock, irqflag);
2204	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2205		pr_debug("%s: assoc ESSID configured %s\n", __func__,
2206			 wl->essid);
2207		essid = wl->essid;
2208		essid_len = wl->essid_len;
2209	} else {
2210		essid = NULL;
2211		essid_len = 0;
2212	}
2213	spin_unlock_irqrestore(&wl->lock, irqflag);
2214
2215	ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2216	if (ret == -ERESTARTSYS) {
2217		pr_debug("%s: scan start failed association\n", __func__);
2218		schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2219		goto out;
2220	} else if (ret) {
2221		pr_info("%s: scan prerequisite failed\n", __func__);
2222		goto out;
2223	}
2224
2225	/*
2226	 * Wait for bss scan completion
2227	 * If we have scan list already, gelic_wl_start_scan()
2228	 * returns OK and raises the complete.  Thus,
2229	 * it's ok to wait unconditionally here
2230	 */
2231	wait_for_completion(&wl->scan_done);
2232
2233	pr_debug("%s: scan done\n", __func__);
2234	mutex_lock(&wl->scan_lock);
2235	if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2236		gelic_wl_send_iwap_event(wl, NULL);
2237		pr_info("%s: no scan list. association failed\n", __func__);
2238		goto scan_lock_out;
2239	}
2240
2241	/* find best matching bss */
2242	best_bss = gelic_wl_find_best_bss(wl);
2243	if (!best_bss) {
2244		gelic_wl_send_iwap_event(wl, NULL);
2245		pr_info("%s: no bss matched. association failed\n", __func__);
2246		goto scan_lock_out;
2247	}
2248
2249	/* ok, do association */
2250	ret = gelic_wl_associate_bss(wl, best_bss);
2251	if (ret)
2252		pr_info("%s: association failed %d\n", __func__, ret);
2253scan_lock_out:
2254	mutex_unlock(&wl->scan_lock);
2255out:
2256	mutex_unlock(&wl->assoc_stat_lock);
2257}
2258/*
2259 * Interrupt handler
2260 * Called from the ethernet interrupt handler
2261 * Processes wireless specific virtual interrupts only
2262 */
2263void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2264{
2265	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2266
2267	if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2268		pr_debug("%s:cmd complete\n", __func__);
2269		complete(&wl->cmd_done_intr);
2270	}
2271
2272	if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2273		pr_debug("%s:event received\n", __func__);
2274		queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2275	}
2276}
2277
2278/*
2279 * driver helpers
2280 */
2281static const iw_handler gelic_wl_wext_handler[] =
2282{
2283	IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2284	IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2285	IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2286	IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2287	IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2288	IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2289	IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2290	IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2291	IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2292	IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2293	IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2294	IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2295	IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2296	IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2297	IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2298	IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2299	IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2300};
2301
2302static const struct iw_handler_def gelic_wl_wext_handler_def = {
2303	.num_standard		= ARRAY_SIZE(gelic_wl_wext_handler),
2304	.standard		= gelic_wl_wext_handler,
2305	.get_wireless_stats	= gelic_wl_get_wireless_stats,
2306};
2307
2308static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2309{
2310	struct net_device *netdev;
2311	struct gelic_port *port;
2312	struct gelic_wl_info *wl;
2313	unsigned int i;
2314
2315	pr_debug("%s:start\n", __func__);
2316	netdev = alloc_etherdev(sizeof(struct gelic_port) +
2317				sizeof(struct gelic_wl_info));
2318	pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2319	if (!netdev)
2320		return NULL;
2321
2322	strcpy(netdev->name, "wlan%d");
2323
2324	port = netdev_priv(netdev);
2325	port->netdev = netdev;
2326	port->card = card;
2327	port->type = GELIC_PORT_WIRELESS;
2328
2329	wl = port_wl(port);
2330	pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2331
2332	/* allocate scan list */
2333	wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2334			       GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2335
2336	if (!wl->networks)
2337		goto fail_bss;
2338
2339	wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2340	if (!wl->eurus_cmd_queue)
2341		goto fail_cmd_workqueue;
2342
2343	wl->event_queue = create_singlethread_workqueue("gelic_event");
2344	if (!wl->event_queue)
2345		goto fail_event_workqueue;
2346
2347	INIT_LIST_HEAD(&wl->network_free_list);
2348	INIT_LIST_HEAD(&wl->network_list);
2349	for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2350		list_add_tail(&wl->networks[i].list,
2351			      &wl->network_free_list);
2352	init_completion(&wl->cmd_done_intr);
2353
2354	INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2355	INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2356	mutex_init(&wl->scan_lock);
2357	mutex_init(&wl->assoc_stat_lock);
2358
2359	init_completion(&wl->scan_done);
2360	/* for the case that no scan request is issued and stop() is called */
2361	complete(&wl->scan_done);
2362
2363	spin_lock_init(&wl->lock);
2364
2365	wl->scan_age = 5*HZ; /* FIXME */
2366
2367	/* buffer for receiving scanned list etc */
2368	BUILD_BUG_ON(PAGE_SIZE <
2369		     sizeof(struct gelic_eurus_scan_info) *
2370		     GELIC_EURUS_MAX_SCAN);
2371	pr_debug("%s:end\n", __func__);
2372	return netdev;
2373
2374fail_event_workqueue:
2375	destroy_workqueue(wl->eurus_cmd_queue);
2376fail_cmd_workqueue:
2377	kfree(wl->networks);
2378fail_bss:
2379	free_netdev(netdev);
2380	pr_debug("%s:end error\n", __func__);
2381	return NULL;
2382
2383}
2384
2385static void gelic_wl_free(struct gelic_wl_info *wl)
2386{
2387	struct gelic_wl_scan_info *scan_info;
2388	unsigned int i;
2389
2390	pr_debug("%s: <-\n", __func__);
2391
2392	pr_debug("%s: destroy queues\n", __func__);
2393	destroy_workqueue(wl->eurus_cmd_queue);
2394	destroy_workqueue(wl->event_queue);
2395
2396	scan_info = wl->networks;
2397	for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2398		kfree(scan_info->hwinfo);
2399	kfree(wl->networks);
2400
2401	free_netdev(port_to_netdev(wl_port(wl)));
2402
2403	pr_debug("%s: ->\n", __func__);
2404}
2405
2406static int gelic_wl_try_associate(struct net_device *netdev)
2407{
2408	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2409	int ret = -1;
2410	unsigned int i;
2411
2412	pr_debug("%s: <-\n", __func__);
2413
2414	/* check constraits for start association */
2415	/* for no access restriction AP */
2416	if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2417		if (test_bit(GELIC_WL_STAT_CONFIGURED,
2418			     &wl->stat))
2419			goto do_associate;
2420		else {
2421			pr_debug("%s: no wep, not configured\n", __func__);
2422			return ret;
2423		}
2424	}
2425
2426	/* for WEP, one of four keys should be set */
2427	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2428		/* one of keys set */
2429		for (i = 0; i < GELIC_WEP_KEYS; i++) {
2430			if (test_bit(i, &wl->key_enabled))
2431			    goto do_associate;
2432		}
2433		pr_debug("%s: WEP, but no key specified\n", __func__);
2434		return ret;
2435	}
2436
2437	/* for WPA[2], psk should be set */
2438	if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2439	    (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2440		if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2441			     &wl->stat))
2442			goto do_associate;
2443		else {
2444			pr_debug("%s: AES/TKIP, but PSK not configured\n",
2445				 __func__);
2446			return ret;
2447		}
2448	}
2449
2450do_associate:
2451	ret = schedule_delayed_work(&wl->assoc_work, 0);
2452	pr_debug("%s: start association work %d\n", __func__, ret);
2453	return ret;
2454}
2455
2456/*
2457 * netdev handlers
2458 */
2459static int gelic_wl_open(struct net_device *netdev)
2460{
2461	struct gelic_card *card = netdev_card(netdev);
2462
2463	pr_debug("%s:->%p\n", __func__, netdev);
2464
2465	gelic_card_up(card);
2466
2467	/* try to associate */
2468	gelic_wl_try_associate(netdev);
2469
2470	netif_start_queue(netdev);
2471
2472	pr_debug("%s:<-\n", __func__);
2473	return 0;
2474}
2475
2476/*
2477 * reset state machine
2478 */
2479static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2480{
2481	struct gelic_wl_scan_info *target;
2482	struct gelic_wl_scan_info *tmp;
2483
2484	/* empty scan list */
2485	list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2486		list_move_tail(&target->list, &wl->network_free_list);
2487	}
2488	wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2489
2490	/* clear configuration */
2491	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2492	wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2493	wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2494	wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2495
2496	wl->key_enabled = 0;
2497	wl->current_key = 0;
2498
2499	wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2500	wl->psk_len = 0;
2501
2502	wl->essid_len = 0;
2503	memset(wl->essid, 0, sizeof(wl->essid));
2504	memset(wl->bssid, 0, sizeof(wl->bssid));
2505	memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2506
2507	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2508
2509	memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2510	/* all status bit clear */
2511	wl->stat = 0;
2512	return 0;
2513}
2514
2515/*
2516 * Tell eurus to terminate association
2517 */
2518static void gelic_wl_disconnect(struct net_device *netdev)
2519{
2520	struct gelic_port *port = netdev_priv(netdev);
2521	struct gelic_wl_info *wl = port_wl(port);
2522	struct gelic_eurus_cmd *cmd;
2523
2524	/*
2525	 * If scann process is running on chip,
2526	 * further requests will be rejected
2527	 */
2528	if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2529		wait_for_completion_timeout(&wl->scan_done, HZ);
2530
2531	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2532	kfree(cmd);
2533	gelic_wl_send_iwap_event(wl, NULL);
2534};
2535
2536static int gelic_wl_stop(struct net_device *netdev)
2537{
2538	struct gelic_port *port = netdev_priv(netdev);
2539	struct gelic_wl_info *wl = port_wl(port);
2540	struct gelic_card *card = netdev_card(netdev);
2541
2542	pr_debug("%s:<-\n", __func__);
2543
2544	/*
2545	 * Cancel pending association work.
2546	 * event work can run after netdev down
2547	 */
2548	cancel_delayed_work(&wl->assoc_work);
2549
2550	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2551		gelic_wl_disconnect(netdev);
2552
2553	/* reset our state machine */
2554	gelic_wl_reset_state(wl);
2555
2556	netif_stop_queue(netdev);
2557
2558	gelic_card_down(card);
2559
2560	pr_debug("%s:->\n", __func__);
2561	return 0;
2562}
2563
2564/* -- */
2565
2566static const struct net_device_ops gelic_wl_netdevice_ops = {
2567	.ndo_open = gelic_wl_open,
2568	.ndo_stop = gelic_wl_stop,
2569	.ndo_start_xmit = gelic_net_xmit,
2570	.ndo_set_rx_mode = gelic_net_set_multi,
2571	.ndo_change_mtu = gelic_net_change_mtu,
2572	.ndo_tx_timeout = gelic_net_tx_timeout,
2573	.ndo_set_mac_address = eth_mac_addr,
2574	.ndo_validate_addr = eth_validate_addr,
2575#ifdef CONFIG_NET_POLL_CONTROLLER
2576	.ndo_poll_controller = gelic_net_poll_controller,
2577#endif
2578};
2579
2580static const struct ethtool_ops gelic_wl_ethtool_ops = {
2581	.get_drvinfo	= gelic_net_get_drvinfo,
2582	.get_link	= gelic_wl_get_link,
2583};
2584
2585static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2586{
2587	struct gelic_wl_info *wl;
2588	wl = port_wl(netdev_priv(netdev));
2589	BUG_ON(!wl);
2590	netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2591
2592	netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2593	netdev->netdev_ops = &gelic_wl_netdevice_ops;
2594	netdev->wireless_data = &wl->wireless_data;
2595	netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2596}
2597
2598/*
2599 * driver probe/remove
2600 */
2601int gelic_wl_driver_probe(struct gelic_card *card)
2602{
2603	int ret;
2604	struct net_device *netdev;
2605
2606	pr_debug("%s:start\n", __func__);
2607
2608	if (ps3_compare_firmware_version(1, 6, 0) < 0)
2609		return 0;
2610	if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2611		return 0;
2612
2613	/* alloc netdevice for wireless */
2614	netdev = gelic_wl_alloc(card);
2615	if (!netdev)
2616		return -ENOMEM;
2617
2618	/* setup net_device structure */
2619	SET_NETDEV_DEV(netdev, &card->dev->core);
2620	gelic_wl_setup_netdev_ops(netdev);
2621
2622	/* setup some of net_device and register it */
2623	ret = gelic_net_setup_netdev(netdev, card);
2624	if (ret)
2625		goto fail_setup;
2626	card->netdev[GELIC_PORT_WIRELESS] = netdev;
2627
2628	/* add enable wireless interrupt */
2629	card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2630		GELIC_CARD_WLAN_COMMAND_COMPLETED;
2631	/* to allow wireless commands while both interfaces are down */
2632	gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2633				GELIC_CARD_WLAN_COMMAND_COMPLETED);
2634	pr_debug("%s:end\n", __func__);
2635	return 0;
2636
2637fail_setup:
2638	gelic_wl_free(port_wl(netdev_port(netdev)));
2639
2640	return ret;
2641}
2642
2643int gelic_wl_driver_remove(struct gelic_card *card)
2644{
2645	struct gelic_wl_info *wl;
2646	struct net_device *netdev;
2647
2648	pr_debug("%s:start\n", __func__);
2649
2650	if (ps3_compare_firmware_version(1, 6, 0) < 0)
2651		return 0;
2652	if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2653		return 0;
2654
2655	netdev = card->netdev[GELIC_PORT_WIRELESS];
2656	wl = port_wl(netdev_priv(netdev));
2657
2658	/* if the interface was not up, but associated */
2659	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2660		gelic_wl_disconnect(netdev);
2661
2662	complete(&wl->cmd_done_intr);
2663
2664	/* cancel all work queue */
2665	cancel_delayed_work(&wl->assoc_work);
2666	cancel_delayed_work(&wl->event_work);
2667	flush_workqueue(wl->eurus_cmd_queue);
2668	flush_workqueue(wl->event_queue);
2669
2670	unregister_netdev(netdev);
2671
2672	/* disable wireless interrupt */
2673	pr_debug("%s: disable intr\n", __func__);
2674	card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2675			    GELIC_CARD_WLAN_COMMAND_COMPLETED);
2676	/* free bss list, netdev*/
2677	gelic_wl_free(wl);
2678	pr_debug("%s:end\n", __func__);
2679	return 0;
2680}