kernel/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c

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