git.oblomov.eu Git - linux-2.6/blob - drivers/net/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
  25 #include <linux/etherdevice.h>
  26 #include <linux/ethtool.h>
  27 #include <linux/if_vlan.h>
  28
  29 #include <linux/in.h>
  30 #include <linux/ip.h>
  31 #include <linux/tcp.h>
  32 #include <linux/wireless.h>
  33 #include <linux/ieee80211.h>
  34 #include <linux/if_arp.h>
  35 #include <linux/ctype.h>
  36 #include <linux/string.h>
  37 #include <net/iw_handler.h>
  38
  39 #include <linux/dma-mapping.h>
  40 #include <net/checksum.h>
  41 #include <asm/firmware.h>
  42 #include <asm/ps3.h>
  43 #include <asm/lv1call.h>
  44
  45 #include "ps3_gelic_net.h"
  46 #include "ps3_gelic_wireless.h"
  47
  48
  49 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
  50                                u8 *essid, size_t essid_len);
  51 static int gelic_wl_try_associate(struct net_device *netdev);
  52
  53 /*
  54  * tables
  55  */
  56
  57 /* 802.11b/g channel to freq in MHz */
  58 static const int channel_freq[] = {
  59         2412, 2417, 2422, 2427, 2432,
  60         2437, 2442, 2447, 2452, 2457,
  61         2462, 2467, 2472, 2484
  62 };
  63 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
  64
  65 /* in bps */
  66 static const int bitrate_list[] = {
  67           1000000,
  68           2000000,
  69           5500000,
  70          11000000,
  71           6000000,
  72           9000000,
  73          12000000,
  74          18000000,
  75          24000000,
  76          36000000,
  77          48000000,
  78          54000000
  79 };
  80 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
  81
  82 /*
  83  * wpa2 support requires the hypervisor version 2.0 or later
  84  */
  85 static inline int wpa2_capable(void)
  86 {
  87         return (0 <= ps3_compare_firmware_version(2, 0, 0));
  88 }
  89
  90 static inline int precise_ie(void)
  91 {
  92         return (0 <= ps3_compare_firmware_version(2, 2, 0));
  93 }
  94 /*
  95  * post_eurus_cmd helpers
  96  */
  97 struct eurus_cmd_arg_info {
  98         int pre_arg; /* command requres arg1, arg2 at POST COMMAND */
  99         int post_arg; /* command requires arg1, arg2 at GET_RESULT */
 100 };
 101
 102 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
 103         [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
 104         [GELIC_EURUS_CMD_SET_WEP_CFG]    = { .pre_arg = 1},
 105         [GELIC_EURUS_CMD_SET_WPA_CFG]    = { .pre_arg = 1},
 106         [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
 107         [GELIC_EURUS_CMD_GET_WEP_CFG]    = { .post_arg = 1},
 108         [GELIC_EURUS_CMD_GET_WPA_CFG]    = { .post_arg = 1},
 109         [GELIC_EURUS_CMD_GET_RSSI_CFG]   = { .post_arg = 1},
 110         [GELIC_EURUS_CMD_START_SCAN]     = { .pre_arg = 1},
 111         [GELIC_EURUS_CMD_GET_SCAN]       = { .post_arg = 1},
 112 };
 113
 114 #ifdef DEBUG
 115 static const char *cmdstr(enum gelic_eurus_command ix)
 116 {
 117         switch (ix) {
 118         case GELIC_EURUS_CMD_ASSOC:
 119                 return "ASSOC";
 120         case GELIC_EURUS_CMD_DISASSOC:
 121                 return "DISASSOC";
 122         case GELIC_EURUS_CMD_START_SCAN:
 123                 return "SCAN";
 124         case GELIC_EURUS_CMD_GET_SCAN:
 125                 return "GET SCAN";
 126         case GELIC_EURUS_CMD_SET_COMMON_CFG:
 127                 return "SET_COMMON_CFG";
 128         case GELIC_EURUS_CMD_GET_COMMON_CFG:
 129                 return "GET_COMMON_CFG";
 130         case GELIC_EURUS_CMD_SET_WEP_CFG:
 131                 return "SET_WEP_CFG";
 132         case GELIC_EURUS_CMD_GET_WEP_CFG:
 133                 return "GET_WEP_CFG";
 134         case GELIC_EURUS_CMD_SET_WPA_CFG:
 135                 return "SET_WPA_CFG";
 136         case GELIC_EURUS_CMD_GET_WPA_CFG:
 137                 return "GET_WPA_CFG";
 138         case GELIC_EURUS_CMD_GET_RSSI_CFG:
 139                 return "GET_RSSI";
 140         default:
 141                 break;
 142         }
 143         return "";
 144 };
 145 #else
 146 static inline const char *cmdstr(enum gelic_eurus_command ix)
 147 {
 148         return "";
 149 }
 150 #endif
 151
 152 /* synchronously do eurus commands */
 153 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
 154 {
 155         struct gelic_eurus_cmd *cmd;
 156         struct gelic_card *card;
 157         struct gelic_wl_info *wl;
 158
 159         u64 arg1, arg2;
 160
 161         pr_debug("%s: <-\n", __func__);
 162         cmd = container_of(work, struct gelic_eurus_cmd, work);
 163         BUG_ON(cmd_info[cmd->cmd].pre_arg &&
 164                cmd_info[cmd->cmd].post_arg);
 165         wl = cmd->wl;
 166         card = port_to_card(wl_port(wl));
 167
 168         if (cmd_info[cmd->cmd].pre_arg) {
 169                 arg1 = (cmd->buffer) ?
 170                         ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
 171                         0;
 172                 arg2 = cmd->buf_size;
 173         } else {
 174                 arg1 = 0;
 175                 arg2 = 0;
 176         }
 177         init_completion(&wl->cmd_done_intr);
 178         pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
 179         cmd->status = lv1_net_control(bus_id(card), dev_id(card),
 180                                       GELIC_LV1_POST_WLAN_CMD,
 181                                       cmd->cmd, arg1, arg2,
 182                                       &cmd->tag, &cmd->size);
 183         if (cmd->status) {
 184                 complete(&cmd->done);
 185                 pr_info("%s: cmd issue failed\n", __func__);
 186                 return;
 187         }
 188
 189         wait_for_completion(&wl->cmd_done_intr);
 190
 191         if (cmd_info[cmd->cmd].post_arg) {
 192                 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
 193                 arg2 = cmd->buf_size;
 194         } else {
 195                 arg1 = 0;
 196                 arg2 = 0;
 197         }
 198
 199         cmd->status = lv1_net_control(bus_id(card), dev_id(card),
 200                                       GELIC_LV1_GET_WLAN_CMD_RESULT,
 201                                       cmd->tag, arg1, arg2,
 202                                       &cmd->cmd_status, &cmd->size);
 203 #ifdef DEBUG
 204         if (cmd->status || cmd->cmd_status) {
 205         pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
 206                  cmd->tag, arg1, arg2);
 207         pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
 208                  __func__, cmd->status, cmd->cmd_status, cmd->size);
 209         }
 210 #endif
 211         complete(&cmd->done);
 212         pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
 213 }
 214
 215 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
 216                                                     unsigned int eurus_cmd,
 217                                                     void *buffer,
 218                                                     unsigned int buf_size)
 219 {
 220         struct gelic_eurus_cmd *cmd;
 221
 222         /* allocate cmd */
 223         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 224         if (!cmd)
 225                 return NULL;
 226
 227         /* initialize members */
 228         cmd->cmd = eurus_cmd;
 229         cmd->buffer = buffer;
 230         cmd->buf_size = buf_size;
 231         cmd->wl = wl;
 232         INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
 233         init_completion(&cmd->done);
 234         queue_work(wl->eurus_cmd_queue, &cmd->work);
 235
 236         /* wait for command completion */
 237         wait_for_completion(&cmd->done);
 238
 239         return cmd;
 240 }
 241
 242 static u32 gelic_wl_get_link(struct net_device *netdev)
 243 {
 244         struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 245         u32 ret;
 246
 247         pr_debug("%s: <-\n", __func__);
 248         mutex_lock(&wl->assoc_stat_lock);
 249         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
 250                 ret = 1;
 251         else
 252                 ret = 0;
 253         mutex_unlock(&wl->assoc_stat_lock);
 254         pr_debug("%s: ->\n", __func__);
 255         return ret;
 256 }
 257
 258 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
 259 {
 260         union iwreq_data data;
 261
 262         memset(&data, 0, sizeof(data));
 263         if (bssid)
 264                 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
 265         data.ap_addr.sa_family = ARPHRD_ETHER;
 266         wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
 267                             &data, NULL);
 268 }
 269
 270 /*
 271  * wireless extension handlers and helpers
 272  */
 273
 274 /* SIOGIWNAME */
 275 static int gelic_wl_get_name(struct net_device *dev,
 276                              struct iw_request_info *info,
 277                              union iwreq_data *iwreq, char *extra)
 278 {
 279         strcpy(iwreq->name, "IEEE 802.11bg");
 280         return 0;
 281 }
 282
 283 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
 284 {
 285         struct gelic_card *card = port_to_card(wl_port(wl));
 286         u64 ch_info_raw, tmp;
 287         int status;
 288
 289         if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
 290                 status = lv1_net_control(bus_id(card), dev_id(card),
 291                                          GELIC_LV1_GET_CHANNEL, 0, 0, 0,
 292                                          &ch_info_raw,
 293                                          &tmp);
 294                 /* some fw versions may return error */
 295                 if (status) {
 296                         if (status != LV1_NO_ENTRY)
 297                                 pr_info("%s: available ch unknown\n", __func__);
 298                         wl->ch_info = 0x07ff;/* 11 ch */
 299                 } else
 300                         /* 16 bits of MSB has available channels */
 301                         wl->ch_info = ch_info_raw >> 48;
 302         }
 303         return;
 304 }
 305
 306 /* SIOGIWRANGE */
 307 static int gelic_wl_get_range(struct net_device *netdev,
 308                               struct iw_request_info *info,
 309                               union iwreq_data *iwreq, char *extra)
 310 {
 311         struct iw_point *point = &iwreq->data;
 312         struct iw_range *range = (struct iw_range *)extra;
 313         struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 314         unsigned int i, chs;
 315
 316         pr_debug("%s: <-\n", __func__);
 317         point->length = sizeof(struct iw_range);
 318         memset(range, 0, sizeof(struct iw_range));
 319
 320         range->we_version_compiled = WIRELESS_EXT;
 321         range->we_version_source = 22;
 322
 323         /* available channels and frequencies */
 324         gelic_wl_get_ch_info(wl);
 325
 326         for (i = 0, chs = 0;
 327              i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
 328                 if (wl->ch_info & (1 << i)) {
 329                         range->freq[chs].i = i + 1;
 330                         range->freq[chs].m = channel_freq[i];
 331                         range->freq[chs].e = 6;
 332                         chs++;
 333                 }
 334         range->num_frequency = chs;
 335         range->old_num_frequency = chs;
 336         range->num_channels = chs;
 337         range->old_num_channels = chs;
 338
 339         /* bitrates */
 340         for (i = 0; i < NUM_BITRATES; i++)
 341                 range->bitrate[i] = bitrate_list[i];
 342         range->num_bitrates = i;
 343
 344         /* signal levels */
 345         range->max_qual.qual = 100; /* relative value */
 346         range->max_qual.level = 100;
 347         range->avg_qual.qual = 50;
 348         range->avg_qual.level = 50;
 349         range->sensitivity = 0;
 350
 351         /* Event capability */
 352         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 353         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 354         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 355
 356         /* encryption capability */
 357         range->enc_capa = IW_ENC_CAPA_WPA |
 358                 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
 359                 IW_ENC_CAPA_4WAY_HANDSHAKE;
 360         if (wpa2_capable())
 361                 range->enc_capa |= IW_ENC_CAPA_WPA2;
 362         range->encoding_size[0] = 5;    /* 40bit WEP */
 363         range->encoding_size[1] = 13;   /* 104bit WEP */
 364         range->encoding_size[2] = 32;   /* WPA-PSK */
 365         range->num_encoding_sizes = 3;
 366         range->max_encoding_tokens = GELIC_WEP_KEYS;
 367
 368         /* scan capability */
 369         range->scan_capa = IW_SCAN_CAPA_ESSID;
 370
 371         pr_debug("%s: ->\n", __func__);
 372         return 0;
 373
 374 }
 375
 376 /* SIOC{G,S}IWSCAN */
 377 static int gelic_wl_set_scan(struct net_device *netdev,
 378                            struct iw_request_info *info,
 379                            union iwreq_data *wrqu, char *extra)
 380 {
 381         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 382         struct iw_scan_req *req;
 383         u8 *essid = NULL;
 384         size_t essid_len = 0;
 385
 386         if (wrqu->data.length == sizeof(struct iw_scan_req) &&
 387             wrqu->data.flags & IW_SCAN_THIS_ESSID) {
 388                 req = (struct iw_scan_req*)extra;
 389                 essid = req->essid;
 390                 essid_len = req->essid_len;
 391                 pr_debug("%s: ESSID scan =%s\n", __func__, essid);
 392         }
 393         return gelic_wl_start_scan(wl, 1, essid, essid_len);
 394 }
 395
 396 #define OUI_LEN 3
 397 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
 398 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
 399
 400 /*
 401  * synthesize WPA/RSN IE data
 402  * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
 403  * for the format
 404  */
 405 static size_t gelic_wl_synthesize_ie(u8 *buf,
 406                                      struct gelic_eurus_scan_info *scan)
 407 {
 408
 409         const u8 *oui_header;
 410         u8 *start = buf;
 411         int rsn;
 412         int ccmp;
 413
 414         pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
 415         switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
 416         case GELIC_EURUS_SCAN_SEC_WPA:
 417                 rsn = 0;
 418                 break;
 419         case GELIC_EURUS_SCAN_SEC_WPA2:
 420                 rsn = 1;
 421                 break;
 422         default:
 423                 /* WEP or none.  No IE returned */
 424                 return 0;
 425         }
 426
 427         switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
 428         case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
 429                 ccmp = 0;
 430                 break;
 431         case GELIC_EURUS_SCAN_SEC_WPA_AES:
 432                 ccmp = 1;
 433                 break;
 434         default:
 435                 if (rsn) {
 436                         ccmp = 1;
 437                         pr_info("%s: no cipher info. defaulted to CCMP\n",
 438                                 __func__);
 439                 } else {
 440                         ccmp = 0;
 441                         pr_info("%s: no cipher info. defaulted to TKIP\n",
 442                                 __func__);
 443                 }
 444         }
 445
 446         if (rsn)
 447                 oui_header = rsn_oui;
 448         else
 449                 oui_header = wpa_oui;
 450
 451         /* element id */
 452         if (rsn)
 453                 *buf++ = WLAN_EID_RSN;
 454         else
 455                 *buf++ = WLAN_EID_GENERIC;
 456
 457         /* length filed; set later */
 458         buf++;
 459
 460         /* wpa special header */
 461         if (!rsn) {
 462                 memcpy(buf, wpa_oui, OUI_LEN);
 463                 buf += OUI_LEN;
 464                 *buf++ = 0x01;
 465         }
 466
 467         /* version */
 468         *buf++ = 0x01; /* version 1.0 */
 469         *buf++ = 0x00;
 470
 471         /* group cipher */
 472         memcpy(buf, oui_header, OUI_LEN);
 473         buf += OUI_LEN;
 474
 475         if (ccmp)
 476                 *buf++ = 0x04; /* CCMP */
 477         else
 478                 *buf++ = 0x02; /* TKIP */
 479
 480         /* pairwise key count always 1 */
 481         *buf++ = 0x01;
 482         *buf++ = 0x00;
 483
 484         /* pairwise key suit */
 485         memcpy(buf, oui_header, OUI_LEN);
 486         buf += OUI_LEN;
 487         if (ccmp)
 488                 *buf++ = 0x04; /* CCMP */
 489         else
 490                 *buf++ = 0x02; /* TKIP */
 491
 492         /* AKM count is 1 */
 493         *buf++ = 0x01;
 494         *buf++ = 0x00;
 495
 496         /* AKM suite is assumed as PSK*/
 497         memcpy(buf, oui_header, OUI_LEN);
 498         buf += OUI_LEN;
 499         *buf++ = 0x02; /* PSK */
 500
 501         /* RSN capabilities is 0 */
 502         *buf++ = 0x00;
 503         *buf++ = 0x00;
 504
 505         /* set length field */
 506         start[1] = (buf - start - 2);
 507
 508         pr_debug("%s: ->\n", __func__);
 509         return (buf - start);
 510 }
 511
 512 struct ie_item {
 513         u8 *data;
 514         u8 len;
 515 };
 516
 517 struct ie_info {
 518         struct ie_item wpa;
 519         struct ie_item rsn;
 520 };
 521
 522 static void gelic_wl_parse_ie(u8 *data, size_t len,
 523                               struct ie_info *ie_info)
 524 {
 525         size_t data_left = len;
 526         u8 *pos = data;
 527         u8 item_len;
 528         u8 item_id;
 529
 530         pr_debug("%s: data=%p len=%ld \n", __func__,
 531                  data, len);
 532         memset(ie_info, 0, sizeof(struct ie_info));
 533
 534         while (2 <= data_left) {
 535                 item_id = *pos++;
 536                 item_len = *pos++;
 537                 data_left -= 2;
 538
 539                 if (data_left < item_len)
 540                         break;
 541
 542                 switch (item_id) {
 543                 case WLAN_EID_GENERIC:
 544                         if ((OUI_LEN + 1 <= item_len) &&
 545                             !memcmp(pos, wpa_oui, OUI_LEN) &&
 546                             pos[OUI_LEN] == 0x01) {
 547                                 ie_info->wpa.data = pos - 2;
 548                                 ie_info->wpa.len = item_len + 2;
 549                         }
 550                         break;
 551                 case WLAN_EID_RSN:
 552                         ie_info->rsn.data = pos - 2;
 553                         /* length includes the header */
 554                         ie_info->rsn.len = item_len + 2;
 555                         break;
 556                 default:
 557                         pr_debug("%s: ignore %#x,%d\n", __func__,
 558                                  item_id, item_len);
 559                         break;
 560                 }
 561                 pos += item_len;
 562                 data_left -= item_len;
 563         }
 564         pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
 565                  ie_info->wpa.data, ie_info->wpa.len,
 566                  ie_info->rsn.data, ie_info->rsn.len);
 567 }
 568
 569
 570 /*
 571  * translate the scan informations from hypervisor to a
 572  * independent format
 573  */
 574 static char *gelic_wl_translate_scan(struct net_device *netdev,
 575                                      struct iw_request_info *info,
 576                                      char *ev,
 577                                      char *stop,
 578                                      struct gelic_wl_scan_info *network)
 579 {
 580         struct iw_event iwe;
 581         struct gelic_eurus_scan_info *scan = network->hwinfo;
 582         char *tmp;
 583         u8 rate;
 584         unsigned int i, j, len;
 585         u8 buf[64]; /* arbitrary size large enough */
 586
 587         pr_debug("%s: <-\n", __func__);
 588
 589         /* first entry should be AP's mac address */
 590         iwe.cmd = SIOCGIWAP;
 591         iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 592         memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
 593         ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
 594
 595         /* ESSID */
 596         iwe.cmd = SIOCGIWESSID;
 597         iwe.u.data.flags = 1;
 598         iwe.u.data.length = strnlen(scan->essid, 32);
 599         ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
 600
 601         /* FREQUENCY */
 602         iwe.cmd = SIOCGIWFREQ;
 603         iwe.u.freq.m = be16_to_cpu(scan->channel);
 604         iwe.u.freq.e = 0; /* table value in MHz */
 605         iwe.u.freq.i = 0;
 606         ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
 607
 608         /* RATES */
 609         iwe.cmd = SIOCGIWRATE;
 610         iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 611         /* to stuff multiple values in one event */
 612         tmp = ev + iwe_stream_lcp_len(info);
 613         /* put them in ascendant order (older is first) */
 614         i = 0;
 615         j = 0;
 616         pr_debug("%s: rates=%d rate=%d\n", __func__,
 617                  network->rate_len, network->rate_ext_len);
 618         while (i < network->rate_len) {
 619                 if (j < network->rate_ext_len &&
 620                     ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
 621                     rate = scan->ext_rate[j++] & 0x7f;
 622                 else
 623                     rate = scan->rate[i++] & 0x7f;
 624                 iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
 625                 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
 626                                            IW_EV_PARAM_LEN);
 627         }
 628         while (j < network->rate_ext_len) {
 629                 iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
 630                 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
 631                                            IW_EV_PARAM_LEN);
 632         }
 633         /* Check if we added any rate */
 634         if (iwe_stream_lcp_len(info) < (tmp - ev))
 635                 ev = tmp;
 636
 637         /* ENCODE */
 638         iwe.cmd = SIOCGIWENCODE;
 639         if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
 640                 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
 641         else
 642                 iwe.u.data.flags = IW_ENCODE_DISABLED;
 643         iwe.u.data.length = 0;
 644         ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
 645
 646         /* MODE */
 647         iwe.cmd = SIOCGIWMODE;
 648         if (be16_to_cpu(scan->capability) &
 649             (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
 650                 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
 651                         iwe.u.mode = IW_MODE_MASTER;
 652                 else
 653                         iwe.u.mode = IW_MODE_ADHOC;
 654                 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
 655         }
 656
 657         /* QUAL */
 658         iwe.cmd = IWEVQUAL;
 659         iwe.u.qual.updated  = IW_QUAL_ALL_UPDATED |
 660                         IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
 661         iwe.u.qual.level = be16_to_cpu(scan->rssi);
 662         iwe.u.qual.qual = be16_to_cpu(scan->rssi);
 663         iwe.u.qual.noise = 0;
 664         ev  = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
 665
 666         /* RSN */
 667         memset(&iwe, 0, sizeof(iwe));
 668         if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
 669                 /* If wpa[2] capable station, synthesize IE and put it */
 670                 len = gelic_wl_synthesize_ie(buf, scan);
 671                 if (len) {
 672                         iwe.cmd = IWEVGENIE;
 673                         iwe.u.data.length = len;
 674                         ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
 675                 }
 676         } else {
 677                 /* this scan info has IE data */
 678                 struct ie_info ie_info;
 679                 size_t data_len;
 680
 681                 data_len = be16_to_cpu(scan->size) - sizeof(*scan);
 682
 683                 gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
 684
 685                 if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
 686                         memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
 687                         iwe.cmd = IWEVGENIE;
 688                         iwe.u.data.length = ie_info.wpa.len;
 689                         ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
 690                 }
 691
 692                 if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
 693                         memset(&iwe, 0, sizeof(iwe));
 694                         memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
 695                         iwe.cmd = IWEVGENIE;
 696                         iwe.u.data.length = ie_info.rsn.len;
 697                         ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
 698                 }
 699         }
 700
 701         pr_debug("%s: ->\n", __func__);
 702         return ev;
 703 }
 704
 705
 706 static int gelic_wl_get_scan(struct net_device *netdev,
 707                              struct iw_request_info *info,
 708                              union iwreq_data *wrqu, char *extra)
 709 {
 710         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 711         struct gelic_wl_scan_info *scan_info;
 712         char *ev = extra;
 713         char *stop = ev + wrqu->data.length;
 714         int ret = 0;
 715         unsigned long this_time = jiffies;
 716
 717         pr_debug("%s: <-\n", __func__);
 718         if (mutex_lock_interruptible(&wl->scan_lock))
 719                 return -EAGAIN;
 720
 721         switch (wl->scan_stat) {
 722         case GELIC_WL_SCAN_STAT_SCANNING:
 723                 /* If a scan in progress, caller should call me again */
 724                 ret = -EAGAIN;
 725                 goto out;
 726                 break;
 727
 728         case GELIC_WL_SCAN_STAT_INIT:
 729                 /* last scan request failed or never issued */
 730                 ret = -ENODEV;
 731                 goto out;
 732                 break;
 733         case GELIC_WL_SCAN_STAT_GOT_LIST:
 734                 /* ok, use current list */
 735                 break;
 736         }
 737
 738         list_for_each_entry(scan_info, &wl->network_list, list) {
 739                 if (wl->scan_age == 0 ||
 740                     time_after(scan_info->last_scanned + wl->scan_age,
 741                                this_time))
 742                         ev = gelic_wl_translate_scan(netdev, info,
 743                                                      ev, stop,
 744                                                      scan_info);
 745                 else
 746                         pr_debug("%s:entry too old\n", __func__);
 747
 748                 if (stop - ev <= IW_EV_ADDR_LEN) {
 749                         ret = -E2BIG;
 750                         goto out;
 751                 }
 752         }
 753
 754         wrqu->data.length = ev - extra;
 755         wrqu->data.flags = 0;
 756 out:
 757         mutex_unlock(&wl->scan_lock);
 758         pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
 759         return ret;
 760 }
 761
 762 #ifdef DEBUG
 763 static void scan_list_dump(struct gelic_wl_info *wl)
 764 {
 765         struct gelic_wl_scan_info *scan_info;
 766         int i;
 767
 768         i = 0;
 769         list_for_each_entry(scan_info, &wl->network_list, list) {
 770                 pr_debug("%s: item %d\n", __func__, i++);
 771                 pr_debug("valid=%d eurusindex=%d last=%lx\n",
 772                          scan_info->valid, scan_info->eurus_index,
 773                          scan_info->last_scanned);
 774                 pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
 775                          scan_info->rate_len, scan_info->rate_ext_len,
 776                          scan_info->essid_len);
 777                 /* -- */
 778                 pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
 779                 pr_debug("essid=%s\n", scan_info->hwinfo->essid);
 780         }
 781 }
 782 #endif
 783
 784 static int gelic_wl_set_auth(struct net_device *netdev,
 785                              struct iw_request_info *info,
 786                              union iwreq_data *data, char *extra)
 787 {
 788         struct iw_param *param = &data->param;
 789         struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 790         unsigned long irqflag;
 791         int ret = 0;
 792
 793         pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
 794         spin_lock_irqsave(&wl->lock, irqflag);
 795         switch (param->flags & IW_AUTH_INDEX) {
 796         case IW_AUTH_WPA_VERSION:
 797                 if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
 798                         pr_debug("%s: NO WPA selected\n", __func__);
 799                         wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 800                         wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 801                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 802                 }
 803                 if (param->value & IW_AUTH_WPA_VERSION_WPA) {
 804                         pr_debug("%s: WPA version 1 selected\n", __func__);
 805                         wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 806                         wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 807                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 808                         wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 809                 }
 810                 if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
 811                         /*
 812                          * As the hypervisor may not tell the cipher
 813                          * information of the AP if it is WPA2,
 814                          * you will not decide suitable cipher from
 815                          * its beacon.
 816                          * You should have knowledge about the AP's
 817                          * cipher infomation in other method prior to
 818                          * the association.
 819                          */
 820                         if (!precise_ie())
 821                                 pr_info("%s: WPA2 may not work\n", __func__);
 822                         if (wpa2_capable()) {
 823                                 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
 824                                 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 825                                 wl->pairwise_cipher_method =
 826                                         GELIC_WL_CIPHER_AES;
 827                                 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 828                         } else
 829                                 ret = -EINVAL;
 830                 }
 831                 break;
 832
 833         case IW_AUTH_CIPHER_PAIRWISE:
 834                 if (param->value &
 835                     (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 836                         pr_debug("%s: WEP selected\n", __func__);
 837                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 838                 }
 839                 if (param->value & IW_AUTH_CIPHER_TKIP) {
 840                         pr_debug("%s: TKIP selected\n", __func__);
 841                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 842                 }
 843                 if (param->value & IW_AUTH_CIPHER_CCMP) {
 844                         pr_debug("%s: CCMP selected\n", __func__);
 845                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
 846                 }
 847                 if (param->value & IW_AUTH_CIPHER_NONE) {
 848                         pr_debug("%s: no auth selected\n", __func__);
 849                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
 850                 }
 851                 break;
 852         case IW_AUTH_CIPHER_GROUP:
 853                 if (param->value &
 854                     (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 855                         pr_debug("%s: WEP selected\n", __func__);
 856                         wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 857                 }
 858                 if (param->value & IW_AUTH_CIPHER_TKIP) {
 859                         pr_debug("%s: TKIP selected\n", __func__);
 860                         wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 861                 }
 862                 if (param->value & IW_AUTH_CIPHER_CCMP) {
 863                         pr_debug("%s: CCMP selected\n", __func__);
 864                         wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 865                 }
 866                 if (param->value & IW_AUTH_CIPHER_NONE) {
 867                         pr_debug("%s: no auth selected\n", __func__);
 868                         wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
 869                 }
 870                 break;
 871         case IW_AUTH_80211_AUTH_ALG:
 872                 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
 873                         pr_debug("%s: shared key specified\n", __func__);
 874                         wl->auth_method = GELIC_EURUS_AUTH_SHARED;
 875                 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
 876                         pr_debug("%s: open system specified\n", __func__);
 877                         wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 878                 } else
 879                         ret = -EINVAL;
 880                 break;
 881
 882         case IW_AUTH_WPA_ENABLED:
 883                 if (param->value) {
 884                         pr_debug("%s: WPA enabled\n", __func__);
 885                         wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 886                 } else {
 887                         pr_debug("%s: WPA disabled\n", __func__);
 888                         wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 889                 }
 890                 break;
 891
 892         case IW_AUTH_KEY_MGMT:
 893                 if (param->value & IW_AUTH_KEY_MGMT_PSK)
 894                         break;
 895                 /* intentionally fall through */
 896         default:
 897                 ret = -EOPNOTSUPP;
 898                 break;
 899         };
 900
 901         if (!ret)
 902                 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 903
 904         spin_unlock_irqrestore(&wl->lock, irqflag);
 905         pr_debug("%s: -> %d\n", __func__, ret);
 906         return ret;
 907 }
 908
 909 static int gelic_wl_get_auth(struct net_device *netdev,
 910                              struct iw_request_info *info,
 911                              union iwreq_data *iwreq, char *extra)
 912 {
 913         struct iw_param *param = &iwreq->param;
 914         struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 915         unsigned long irqflag;
 916         int ret = 0;
 917
 918         pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
 919         spin_lock_irqsave(&wl->lock, irqflag);
 920         switch (param->flags & IW_AUTH_INDEX) {
 921         case IW_AUTH_WPA_VERSION:
 922                 switch (wl->wpa_level) {
 923                 case GELIC_WL_WPA_LEVEL_WPA:
 924                         param->value |= IW_AUTH_WPA_VERSION_WPA;
 925                         break;
 926                 case GELIC_WL_WPA_LEVEL_WPA2:
 927                         param->value |= IW_AUTH_WPA_VERSION_WPA2;
 928                         break;
 929                 default:
 930                         param->value |= IW_AUTH_WPA_VERSION_DISABLED;
 931                 }
 932                 break;
 933
 934         case IW_AUTH_80211_AUTH_ALG:
 935                 if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
 936                         param->value = IW_AUTH_ALG_SHARED_KEY;
 937                 else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
 938                         param->value = IW_AUTH_ALG_OPEN_SYSTEM;
 939                 break;
 940
 941         case IW_AUTH_WPA_ENABLED:
 942                 switch (wl->wpa_level) {
 943                 case GELIC_WL_WPA_LEVEL_WPA:
 944                 case GELIC_WL_WPA_LEVEL_WPA2:
 945                         param->value = 1;
 946                         break;
 947                 default:
 948                         param->value = 0;
 949                         break;
 950                 }
 951                 break;
 952         default:
 953                 ret = -EOPNOTSUPP;
 954         }
 955
 956         spin_unlock_irqrestore(&wl->lock, irqflag);
 957         pr_debug("%s: -> %d\n", __func__, ret);
 958         return ret;
 959 }
 960
 961 /* SIOC{S,G}IWESSID */
 962 static int gelic_wl_set_essid(struct net_device *netdev,
 963                               struct iw_request_info *info,
 964                               union iwreq_data *data, char *extra)
 965 {
 966         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 967         unsigned long irqflag;
 968
 969         pr_debug("%s: <- l=%d f=%d\n", __func__,
 970                  data->essid.length, data->essid.flags);
 971         if (IW_ESSID_MAX_SIZE < data->essid.length)
 972                 return -EINVAL;
 973
 974         spin_lock_irqsave(&wl->lock, irqflag);
 975         if (data->essid.flags) {
 976                 wl->essid_len = data->essid.length;
 977                 memcpy(wl->essid, extra, wl->essid_len);
 978                 pr_debug("%s: essid = '%s'\n", __func__, extra);
 979                 set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
 980         } else {
 981                 pr_debug("%s: ESSID any \n", __func__);
 982                 clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
 983         }
 984         set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 985         spin_unlock_irqrestore(&wl->lock, irqflag);
 986
 987
 988         gelic_wl_try_associate(netdev); /* FIXME */
 989         pr_debug("%s: -> \n", __func__);
 990         return 0;
 991 }
 992
 993 static int gelic_wl_get_essid(struct net_device *netdev,
 994                               struct iw_request_info *info,
 995                               union iwreq_data *data, char *extra)
 996 {
 997         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 998         unsigned long irqflag;
 999
1000         pr_debug("%s: <- \n", __func__);
1001         mutex_lock(&wl->assoc_stat_lock);
1002         spin_lock_irqsave(&wl->lock, irqflag);
1003         if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
1004             wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1005                 memcpy(extra, wl->essid, wl->essid_len);
1006                 data->essid.length = wl->essid_len;
1007                 data->essid.flags = 1;
1008         } else
1009                 data->essid.flags = 0;
1010
1011         mutex_unlock(&wl->assoc_stat_lock);
1012         spin_unlock_irqrestore(&wl->lock, irqflag);
1013         pr_debug("%s: -> len=%d \n", __func__, data->essid.length);
1014
1015         return 0;
1016 }
1017
1018 /* SIO{S,G}IWENCODE */
1019 static int gelic_wl_set_encode(struct net_device *netdev,
1020                                struct iw_request_info *info,
1021                                union iwreq_data *data, char *extra)
1022 {
1023         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1024         struct iw_point *enc = &data->encoding;
1025         __u16 flags;
1026         unsigned long irqflag;
1027         int key_index, index_specified;
1028         int ret = 0;
1029
1030         pr_debug("%s: <- \n", __func__);
1031         flags = enc->flags & IW_ENCODE_FLAGS;
1032         key_index = enc->flags & IW_ENCODE_INDEX;
1033
1034         pr_debug("%s: key_index = %d\n", __func__, key_index);
1035         pr_debug("%s: key_len = %d\n", __func__, enc->length);
1036         pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1037
1038         if (GELIC_WEP_KEYS < key_index)
1039                 return -EINVAL;
1040
1041         spin_lock_irqsave(&wl->lock, irqflag);
1042         if (key_index) {
1043                 index_specified = 1;
1044                 key_index--;
1045         } else {
1046                 index_specified = 0;
1047                 key_index = wl->current_key;
1048         }
1049
1050         if (flags & IW_ENCODE_NOKEY) {
1051                 /* if just IW_ENCODE_NOKEY, change current key index */
1052                 if (!flags && index_specified) {
1053                         wl->current_key = key_index;
1054                         goto done;
1055                 }
1056
1057                 if (flags & IW_ENCODE_DISABLED) {
1058                         if (!index_specified) {
1059                                 /* disable encryption */
1060                                 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1061                                 wl->pairwise_cipher_method =
1062                                         GELIC_WL_CIPHER_NONE;
1063                                 /* invalidate all key */
1064                                 wl->key_enabled = 0;
1065                         } else
1066                                 clear_bit(key_index, &wl->key_enabled);
1067                 }
1068
1069                 if (flags & IW_ENCODE_OPEN)
1070                         wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1071                 if (flags & IW_ENCODE_RESTRICTED) {
1072                         pr_info("%s: shared key mode enabled\n", __func__);
1073                         wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1074                 }
1075         } else {
1076                 if (IW_ENCODING_TOKEN_MAX < enc->length) {
1077                         ret = -EINVAL;
1078                         goto done;
1079                 }
1080                 wl->key_len[key_index] = enc->length;
1081                 memcpy(wl->key[key_index], extra, enc->length);
1082                 set_bit(key_index, &wl->key_enabled);
1083                 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1084                 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1085         }
1086         set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1087 done:
1088         spin_unlock_irqrestore(&wl->lock, irqflag);
1089         pr_debug("%s: -> \n", __func__);
1090         return ret;
1091 }
1092
1093 static int gelic_wl_get_encode(struct net_device *netdev,
1094                                struct iw_request_info *info,
1095                                union iwreq_data *data, char *extra)
1096 {
1097         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1098         struct iw_point *enc = &data->encoding;
1099         unsigned long irqflag;
1100         unsigned int key_index, index_specified;
1101         int ret = 0;
1102
1103         pr_debug("%s: <- \n", __func__);
1104         key_index = enc->flags & IW_ENCODE_INDEX;
1105         pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1106                  enc->flags, enc->pointer, enc->length, extra);
1107         if (GELIC_WEP_KEYS < key_index)
1108                 return -EINVAL;
1109
1110         spin_lock_irqsave(&wl->lock, irqflag);
1111         if (key_index) {
1112                 index_specified = 1;
1113                 key_index--;
1114         } else {
1115                 index_specified = 0;
1116                 key_index = wl->current_key;
1117         }
1118
1119         if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1120                 switch (wl->auth_method) {
1121                 case GELIC_EURUS_AUTH_OPEN:
1122                         enc->flags = IW_ENCODE_OPEN;
1123                         break;
1124                 case GELIC_EURUS_AUTH_SHARED:
1125                         enc->flags = IW_ENCODE_RESTRICTED;
1126                         break;
1127                 }
1128         } else
1129                 enc->flags = IW_ENCODE_DISABLED;
1130
1131         if (test_bit(key_index, &wl->key_enabled)) {
1132                 if (enc->length < wl->key_len[key_index]) {
1133                         ret = -EINVAL;
1134                         goto done;
1135                 }
1136                 enc->length = wl->key_len[key_index];
1137                 memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1138         } else {
1139                 enc->length = 0;
1140                 enc->flags |= IW_ENCODE_NOKEY;
1141         }
1142         enc->flags |= key_index + 1;
1143         pr_debug("%s: -> flag=%x len=%d\n", __func__,
1144                  enc->flags, enc->length);
1145
1146 done:
1147         spin_unlock_irqrestore(&wl->lock, irqflag);
1148         return ret;
1149 }
1150
1151 /* SIOC{S,G}IWAP */
1152 static int gelic_wl_set_ap(struct net_device *netdev,
1153                            struct iw_request_info *info,
1154                            union iwreq_data *data, char *extra)
1155 {
1156         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1157         unsigned long irqflag;
1158
1159         pr_debug("%s: <-\n", __func__);
1160         if (data->ap_addr.sa_family != ARPHRD_ETHER)
1161                 return -EINVAL;
1162
1163         spin_lock_irqsave(&wl->lock, irqflag);
1164         if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1165                 memcpy(wl->bssid, data->ap_addr.sa_data,
1166                        ETH_ALEN);
1167                 set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1168                 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1169                 pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1170         } else {
1171                 pr_debug("%s: clear bssid\n", __func__);
1172                 clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1173                 memset(wl->bssid, 0, ETH_ALEN);
1174         }
1175         spin_unlock_irqrestore(&wl->lock, irqflag);
1176         pr_debug("%s: ->\n", __func__);
1177         return 0;
1178 }
1179
1180 static int gelic_wl_get_ap(struct net_device *netdev,
1181                            struct iw_request_info *info,
1182                            union iwreq_data *data, char *extra)
1183 {
1184         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1185         unsigned long irqflag;
1186
1187         pr_debug("%s: <-\n", __func__);
1188         mutex_lock(&wl->assoc_stat_lock);
1189         spin_lock_irqsave(&wl->lock, irqflag);
1190         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1191                 data->ap_addr.sa_family = ARPHRD_ETHER;
1192                 memcpy(data->ap_addr.sa_data, wl->active_bssid,
1193                        ETH_ALEN);
1194         } else
1195                 memset(data->ap_addr.sa_data, 0, ETH_ALEN);
1196
1197         spin_unlock_irqrestore(&wl->lock, irqflag);
1198         mutex_unlock(&wl->assoc_stat_lock);
1199         pr_debug("%s: ->\n", __func__);
1200         return 0;
1201 }
1202
1203 /* SIOC{S,G}IWENCODEEXT */
1204 static int gelic_wl_set_encodeext(struct net_device *netdev,
1205                                   struct iw_request_info *info,
1206                                   union iwreq_data *data, char *extra)
1207 {
1208         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1209         struct iw_point *enc = &data->encoding;
1210         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1211         __u16 alg;
1212         __u16 flags;
1213         unsigned long irqflag;
1214         int key_index;
1215         int ret = 0;
1216
1217         pr_debug("%s: <- \n", __func__);
1218         flags = enc->flags & IW_ENCODE_FLAGS;
1219         alg = ext->alg;
1220         key_index = enc->flags & IW_ENCODE_INDEX;
1221
1222         pr_debug("%s: key_index = %d\n", __func__, key_index);
1223         pr_debug("%s: key_len = %d\n", __func__, enc->length);
1224         pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1225         pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1226         pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1227
1228         if (GELIC_WEP_KEYS < key_index)
1229                 return -EINVAL;
1230
1231         spin_lock_irqsave(&wl->lock, irqflag);
1232         if (key_index)
1233                 key_index--;
1234         else
1235                 key_index = wl->current_key;
1236
1237         if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1238                 /* reques to change default key index */
1239                 pr_debug("%s: request to change default key to %d\n",
1240                          __func__, key_index);
1241                 wl->current_key = key_index;
1242                 goto done;
1243         }
1244
1245         if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1246                 pr_debug("%s: alg disabled\n", __func__);
1247                 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1248                 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1249                 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1250                 wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1251         } else if (alg == IW_ENCODE_ALG_WEP) {
1252                 pr_debug("%s: WEP requested\n", __func__);
1253                 if (flags & IW_ENCODE_OPEN) {
1254                         pr_debug("%s: open key mode\n", __func__);
1255                         wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1256                 }
1257                 if (flags & IW_ENCODE_RESTRICTED) {
1258                         pr_debug("%s: shared key mode\n", __func__);
1259                         wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1260                 }
1261                 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1262                         pr_info("%s: key is too long %d\n", __func__,
1263                                 ext->key_len);
1264                         ret = -EINVAL;
1265                         goto done;
1266                 }
1267                 /* OK, update the key */
1268                 wl->key_len[key_index] = ext->key_len;
1269                 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1270                 memcpy(wl->key[key_index], ext->key, ext->key_len);
1271                 set_bit(key_index, &wl->key_enabled);
1272                 /* remember wep info changed */
1273                 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1274         } else if (alg == IW_ENCODE_ALG_PMK) {
1275                 if (ext->key_len != WPA_PSK_LEN) {
1276                         pr_err("%s: PSK length wrong %d\n", __func__,
1277                                ext->key_len);
1278                         ret = -EINVAL;
1279                         goto done;
1280                 }
1281                 memset(wl->psk, 0, sizeof(wl->psk));
1282                 memcpy(wl->psk, ext->key, ext->key_len);
1283                 wl->psk_len = ext->key_len;
1284                 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1285                 /* remember PSK configured */
1286                 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1287         }
1288 done:
1289         spin_unlock_irqrestore(&wl->lock, irqflag);
1290         pr_debug("%s: -> \n", __func__);
1291         return ret;
1292 }
1293
1294 static int gelic_wl_get_encodeext(struct net_device *netdev,
1295                                   struct iw_request_info *info,
1296                                   union iwreq_data *data, char *extra)
1297 {
1298         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1299         struct iw_point *enc = &data->encoding;
1300         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1301         unsigned long irqflag;
1302         int key_index;
1303         int ret = 0;
1304         int max_key_len;
1305
1306         pr_debug("%s: <- \n", __func__);
1307
1308         max_key_len = enc->length - sizeof(struct iw_encode_ext);
1309         if (max_key_len < 0)
1310                 return -EINVAL;
1311         key_index = enc->flags & IW_ENCODE_INDEX;
1312
1313         pr_debug("%s: key_index = %d\n", __func__, key_index);
1314         pr_debug("%s: key_len = %d\n", __func__, enc->length);
1315         pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1316
1317         if (GELIC_WEP_KEYS < key_index)
1318                 return -EINVAL;
1319
1320         spin_lock_irqsave(&wl->lock, irqflag);
1321         if (key_index)
1322                 key_index--;
1323         else
1324                 key_index = wl->current_key;
1325
1326         memset(ext, 0, sizeof(struct iw_encode_ext));
1327         switch (wl->group_cipher_method) {
1328         case GELIC_WL_CIPHER_WEP:
1329                 ext->alg = IW_ENCODE_ALG_WEP;
1330                 enc->flags |= IW_ENCODE_ENABLED;
1331                 break;
1332         case GELIC_WL_CIPHER_TKIP:
1333                 ext->alg = IW_ENCODE_ALG_TKIP;
1334                 enc->flags |= IW_ENCODE_ENABLED;
1335                 break;
1336         case GELIC_WL_CIPHER_AES:
1337                 ext->alg = IW_ENCODE_ALG_CCMP;
1338                 enc->flags |= IW_ENCODE_ENABLED;
1339                 break;
1340         case GELIC_WL_CIPHER_NONE:
1341         default:
1342                 ext->alg = IW_ENCODE_ALG_NONE;
1343                 enc->flags |= IW_ENCODE_NOKEY;
1344                 break;
1345         }
1346
1347         if (!(enc->flags & IW_ENCODE_NOKEY)) {
1348                 if (max_key_len < wl->key_len[key_index]) {
1349                         ret = -E2BIG;
1350                         goto out;
1351                 }
1352                 if (test_bit(key_index, &wl->key_enabled))
1353                         memcpy(ext->key, wl->key[key_index],
1354                                wl->key_len[key_index]);
1355                 else
1356                         pr_debug("%s: disabled key requested ix=%d\n",
1357                                  __func__, key_index);
1358         }
1359 out:
1360         spin_unlock_irqrestore(&wl->lock, irqflag);
1361         pr_debug("%s: -> \n", __func__);
1362         return ret;
1363 }
1364 /* SIOC{S,G}IWMODE */
1365 static int gelic_wl_set_mode(struct net_device *netdev,
1366                              struct iw_request_info *info,
1367                              union iwreq_data *data, char *extra)
1368 {
1369         __u32 mode = data->mode;
1370         int ret;
1371
1372         pr_debug("%s: <- \n", __func__);
1373         if (mode == IW_MODE_INFRA)
1374                 ret = 0;
1375         else
1376                 ret = -EOPNOTSUPP;
1377         pr_debug("%s: -> %d\n", __func__, ret);
1378         return ret;
1379 }
1380
1381 static int gelic_wl_get_mode(struct net_device *netdev,
1382                              struct iw_request_info *info,
1383                              union iwreq_data *data, char *extra)
1384 {
1385         __u32 *mode = &data->mode;
1386         pr_debug("%s: <- \n", __func__);
1387         *mode = IW_MODE_INFRA;
1388         pr_debug("%s: ->\n", __func__);
1389         return 0;
1390 }
1391
1392 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
1393 /* SIOCIWFIRSTPRIV */
1394 static int hex2bin(u8 *str, u8 *bin, unsigned int len)
1395 {
1396         unsigned int i;
1397         static unsigned char *hex = "0123456789ABCDEF";
1398         unsigned char *p, *q;
1399         u8 tmp;
1400
1401         if (len != WPA_PSK_LEN * 2)
1402                 return -EINVAL;
1403
1404         for (i = 0; i < WPA_PSK_LEN * 2; i += 2) {
1405                 p = strchr(hex, toupper(str[i]));
1406                 q = strchr(hex, toupper(str[i + 1]));
1407                 if (!p || !q) {
1408                         pr_info("%s: unconvertible PSK digit=%d\n",
1409                                 __func__, i);
1410                         return -EINVAL;
1411                 }
1412                 tmp = ((p - hex) << 4) + (q - hex);
1413                 *bin++ = tmp;
1414         }
1415         return 0;
1416 };
1417
1418 static int gelic_wl_priv_set_psk(struct net_device *net_dev,
1419                                  struct iw_request_info *info,
1420                                  union iwreq_data *data, char *extra)
1421 {
1422         struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1423         unsigned int len;
1424         unsigned long irqflag;
1425         int ret = 0;
1426
1427         pr_debug("%s:<- len=%d\n", __func__, data->data.length);
1428         len = data->data.length - 1;
1429         if (len <= 2)
1430                 return -EINVAL;
1431
1432         spin_lock_irqsave(&wl->lock, irqflag);
1433         if (extra[0] == '"' && extra[len - 1] == '"') {
1434                 pr_debug("%s: passphrase mode\n", __func__);
1435                 /* pass phrase */
1436                 if (GELIC_WL_EURUS_PSK_MAX_LEN < (len - 2)) {
1437                         pr_info("%s: passphrase too long\n", __func__);
1438                         ret = -E2BIG;
1439                         goto out;
1440                 }
1441                 memset(wl->psk, 0, sizeof(wl->psk));
1442                 wl->psk_len = len - 2;
1443                 memcpy(wl->psk, &(extra[1]), wl->psk_len);
1444                 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
1445         } else {
1446                 ret = hex2bin(extra, wl->psk, len);
1447                 if (ret)
1448                         goto out;
1449                 wl->psk_len = WPA_PSK_LEN;
1450                 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1451         }
1452         set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1453 out:
1454         spin_unlock_irqrestore(&wl->lock, irqflag);
1455         pr_debug("%s:->\n", __func__);
1456         return ret;
1457 }
1458
1459 static int gelic_wl_priv_get_psk(struct net_device *net_dev,
1460                                  struct iw_request_info *info,
1461                                  union iwreq_data *data, char *extra)
1462 {
1463         struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1464         char *p;
1465         unsigned long irqflag;
1466         unsigned int i;
1467
1468         pr_debug("%s:<-\n", __func__);
1469         if (!capable(CAP_NET_ADMIN))
1470                 return -EPERM;
1471
1472         spin_lock_irqsave(&wl->lock, irqflag);
1473         p = extra;
1474         if (test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat)) {
1475                 if (wl->psk_type == GELIC_EURUS_WPA_PSK_BIN) {
1476                         for (i = 0; i < wl->psk_len; i++) {
1477                                 sprintf(p, "%02xu", wl->psk[i]);
1478                                 p += 2;
1479                         }
1480                         *p = '\0';
1481                         data->data.length = wl->psk_len * 2;
1482                 } else {
1483                         *p++ = '"';
1484                         memcpy(p, wl->psk, wl->psk_len);
1485                         p += wl->psk_len;
1486                         *p++ = '"';
1487                         *p = '\0';
1488                         data->data.length = wl->psk_len + 2;
1489                 }
1490         } else
1491                 /* no psk set */
1492                 data->data.length = 0;
1493         spin_unlock_irqrestore(&wl->lock, irqflag);
1494         pr_debug("%s:-> %d\n", __func__, data->data.length);
1495         return 0;
1496 }
1497 #endif
1498
1499 /* SIOCGIWNICKN */
1500 static int gelic_wl_get_nick(struct net_device *net_dev,
1501                                   struct iw_request_info *info,
1502                                   union iwreq_data *data, char *extra)
1503 {
1504         strcpy(extra, "gelic_wl");
1505         data->data.length = strlen(extra);
1506         data->data.flags = 1;
1507         return 0;
1508 }
1509
1510
1511 /* --- */
1512
1513 static struct iw_statistics *gelic_wl_get_wireless_stats(
1514         struct net_device *netdev)
1515 {
1516
1517         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1518         struct gelic_eurus_cmd *cmd;
1519         struct iw_statistics *is;
1520         struct gelic_eurus_rssi_info *rssi;
1521         void *buf;
1522
1523         pr_debug("%s: <-\n", __func__);
1524
1525         buf = (void *)__get_free_page(GFP_KERNEL);
1526         if (!buf)
1527                 return NULL;
1528
1529         is = &wl->iwstat;
1530         memset(is, 0, sizeof(*is));
1531         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1532                                    buf, sizeof(*rssi));
1533         if (cmd && !cmd->status && !cmd->cmd_status) {
1534                 rssi = buf;
1535                 is->qual.level = be16_to_cpu(rssi->rssi);
1536                 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1537                         IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1538         } else
1539                 /* not associated */
1540                 is->qual.updated = IW_QUAL_ALL_INVALID;
1541
1542         kfree(cmd);
1543         free_page((unsigned long)buf);
1544         pr_debug("%s: ->\n", __func__);
1545         return is;
1546 }
1547
1548 /*
1549  *  scanning helpers
1550  */
1551 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1552                                u8 *essid, size_t essid_len)
1553 {
1554         struct gelic_eurus_cmd *cmd;
1555         int ret = 0;
1556         void *buf = NULL;
1557         size_t len;
1558
1559         pr_debug("%s: <- always=%d\n", __func__, always_scan);
1560         if (mutex_lock_interruptible(&wl->scan_lock))
1561                 return -ERESTARTSYS;
1562
1563         /*
1564          * If already a scan in progress, do not trigger more
1565          */
1566         if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1567                 pr_debug("%s: scanning now\n", __func__);
1568                 goto out;
1569         }
1570
1571         init_completion(&wl->scan_done);
1572         /*
1573          * If we have already a bss list, don't try to get new
1574          */
1575         if (!always_scan && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1576                 pr_debug("%s: already has the list\n", __func__);
1577                 complete(&wl->scan_done);
1578                 goto out;
1579         }
1580
1581         /* ESSID scan ? */
1582         if (essid_len && essid) {
1583                 buf = (void *)__get_free_page(GFP_KERNEL);
1584                 if (!buf) {
1585                         ret = -ENOMEM;
1586                         goto out;
1587                 }
1588                 len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1589                 memset(buf, 0, len);
1590                 memcpy(buf, essid, essid_len);
1591                 pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1592         } else
1593                 len = 0;
1594
1595         /*
1596          * issue start scan request
1597          */
1598         wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1599         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1600                                    buf, len);
1601         if (!cmd || cmd->status || cmd->cmd_status) {
1602                 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1603                 complete(&wl->scan_done);
1604                 ret = -ENOMEM;
1605                 goto out;
1606         }
1607         kfree(cmd);
1608 out:
1609         free_page((unsigned long)buf);
1610         mutex_unlock(&wl->scan_lock);
1611         pr_debug("%s: ->\n", __func__);
1612         return ret;
1613 }
1614
1615 /*
1616  * retrieve scan result from the chip (hypervisor)
1617  * this function is invoked by schedule work.
1618  */
1619 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1620 {
1621         struct gelic_eurus_cmd *cmd = NULL;
1622         struct gelic_wl_scan_info *target, *tmp;
1623         struct gelic_wl_scan_info *oldest = NULL;
1624         struct gelic_eurus_scan_info *scan_info;
1625         unsigned int scan_info_size;
1626         union iwreq_data data;
1627         unsigned long this_time = jiffies;
1628         unsigned int data_len, i, found, r;
1629         void *buf;
1630
1631         pr_debug("%s:start\n", __func__);
1632         mutex_lock(&wl->scan_lock);
1633
1634         buf = (void *)__get_free_page(GFP_KERNEL);
1635         if (!buf) {
1636                 pr_info("%s: scan buffer alloc failed\n", __func__);
1637                 goto out;
1638         }
1639
1640         if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1641                 /*
1642                  * stop() may be called while scanning, ignore result
1643                  */
1644                 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1645                          __func__, wl->scan_stat);
1646                 goto out;
1647         }
1648
1649         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1650                                    buf, PAGE_SIZE);
1651         if (!cmd || cmd->status || cmd->cmd_status) {
1652                 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1653                 pr_info("%s:cmd failed\n", __func__);
1654                 kfree(cmd);
1655                 goto out;
1656         }
1657         data_len = cmd->size;
1658         pr_debug("%s: data_len = %d\n", __func__, data_len);
1659         kfree(cmd);
1660
1661         /* OK, bss list retrieved */
1662         wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1663
1664         /* mark all entries are old */
1665         list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1666                 target->valid = 0;
1667                 /* expire too old entries */
1668                 if (time_before(target->last_scanned + wl->scan_age,
1669                                 this_time)) {
1670                         kfree(target->hwinfo);
1671                         target->hwinfo = NULL;
1672                         list_move_tail(&target->list, &wl->network_free_list);
1673                 }
1674         }
1675
1676         /* put them in the newtork_list */
1677         for (i = 0, scan_info_size = 0, scan_info = buf;
1678              scan_info_size < data_len;
1679              i++, scan_info_size += be16_to_cpu(scan_info->size),
1680              scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1681                 pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1682                          be16_to_cpu(scan_info->size),
1683                          &scan_info->bssid[2], scan_info);
1684
1685                 /*
1686                  * The wireless firmware may return invalid channel 0 and/or
1687                  * invalid rate if the AP emits zero length SSID ie. As this
1688                  * scan information is useless, ignore it
1689                  */
1690                 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1691                         pr_debug("%s: invalid scan info\n", __func__);
1692                         continue;
1693                 }
1694
1695                 found = 0;
1696                 oldest = NULL;
1697                 list_for_each_entry(target, &wl->network_list, list) {
1698                         if (!compare_ether_addr(&target->hwinfo->bssid[2],
1699                                                 &scan_info->bssid[2])) {
1700                                 found = 1;
1701                                 pr_debug("%s: same BBS found scanned list\n",
1702                                          __func__);
1703                                 break;
1704                         }
1705                         if (!oldest ||
1706                             (target->last_scanned < oldest->last_scanned))
1707                                 oldest = target;
1708                 }
1709
1710                 if (!found) {
1711                         /* not found in the list */
1712                         if (list_empty(&wl->network_free_list)) {
1713                                 /* expire oldest */
1714                                 target = oldest;
1715                         } else {
1716                                 target = list_entry(wl->network_free_list.next,
1717                                                     struct gelic_wl_scan_info,
1718                                                     list);
1719                         }
1720                 }
1721
1722                 /* update the item */
1723                 target->last_scanned = this_time;
1724                 target->valid = 1;
1725                 target->eurus_index = i;
1726                 kfree(target->hwinfo);
1727                 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1728                                          GFP_KERNEL);
1729                 if (!target->hwinfo) {
1730                         pr_info("%s: kzalloc failed\n", __func__);
1731                         continue;
1732                 }
1733                 /* copy hw scan info */
1734                 memcpy(target->hwinfo, scan_info, scan_info->size);
1735                 target->essid_len = strnlen(scan_info->essid,
1736                                             sizeof(scan_info->essid));
1737                 target->rate_len = 0;
1738                 for (r = 0; r < 12; r++)
1739                         if (scan_info->rate[r])
1740                                 target->rate_len++;
1741                 if (8 < target->rate_len)
1742                         pr_info("%s: AP returns %d rates\n", __func__,
1743                                 target->rate_len);
1744                 target->rate_ext_len = 0;
1745                 for (r = 0; r < 16; r++)
1746                         if (scan_info->ext_rate[r])
1747                                 target->rate_ext_len++;
1748                 list_move_tail(&target->list, &wl->network_list);
1749         }
1750         memset(&data, 0, sizeof(data));
1751         wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1752                             NULL);
1753 out:
1754         free_page((unsigned long)buf);
1755         complete(&wl->scan_done);
1756         mutex_unlock(&wl->scan_lock);
1757         pr_debug("%s:end\n", __func__);
1758 }
1759
1760 /*
1761  * Select an appropriate bss from current scan list regarding
1762  * current settings from userspace.
1763  * The caller must hold wl->scan_lock,
1764  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1765  */
1766 static void update_best(struct gelic_wl_scan_info **best,
1767                         struct gelic_wl_scan_info *candid,
1768                         int *best_weight,
1769                         int *weight)
1770 {
1771         if (*best_weight < ++(*weight)) {
1772                 *best_weight = *weight;
1773                 *best = candid;
1774         }
1775 }
1776
1777 static
1778 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1779 {
1780         struct gelic_wl_scan_info *scan_info;
1781         struct gelic_wl_scan_info *best_bss;
1782         int weight, best_weight;
1783         u16 security;
1784
1785         pr_debug("%s: <-\n", __func__);
1786
1787         best_bss = NULL;
1788         best_weight = 0;
1789
1790         list_for_each_entry(scan_info, &wl->network_list, list) {
1791                 pr_debug("%s: station %p\n", __func__, scan_info);
1792
1793                 if (!scan_info->valid) {
1794                         pr_debug("%s: station invalid\n", __func__);
1795                         continue;
1796                 }
1797
1798                 /* If bss specified, check it only */
1799                 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1800                         if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1801                                                 wl->bssid)) {
1802                                 best_bss = scan_info;
1803                                 pr_debug("%s: bssid matched\n", __func__);
1804                                 break;
1805                         } else {
1806                                 pr_debug("%s: bssid unmached\n", __func__);
1807                                 continue;
1808                         }
1809                 }
1810
1811                 weight = 0;
1812
1813                 /* security */
1814                 security = be16_to_cpu(scan_info->hwinfo->security) &
1815                         GELIC_EURUS_SCAN_SEC_MASK;
1816                 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1817                         if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1818                                 update_best(&best_bss, scan_info,
1819                                             &best_weight, &weight);
1820                         else
1821                                 continue;
1822                 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1823                         if (security == GELIC_EURUS_SCAN_SEC_WPA)
1824                                 update_best(&best_bss, scan_info,
1825                                             &best_weight, &weight);
1826                         else
1827                                 continue;
1828                 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1829                            wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1830                         if (security == GELIC_EURUS_SCAN_SEC_WEP)
1831                                 update_best(&best_bss, scan_info,
1832                                             &best_weight, &weight);
1833                         else
1834                                 continue;
1835                 }
1836
1837                 /* If ESSID is set, check it */
1838                 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1839                         if ((scan_info->essid_len == wl->essid_len) &&
1840                             !strncmp(wl->essid,
1841                                      scan_info->hwinfo->essid,
1842                                      scan_info->essid_len))
1843                                 update_best(&best_bss, scan_info,
1844                                             &best_weight, &weight);
1845                         else
1846                                 continue;
1847                 }
1848         }
1849
1850 #ifdef DEBUG
1851         pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1852         if (best_bss) {
1853                 pr_debug("%s:addr=%pM\n", __func__,
1854                          &best_bss->hwinfo->bssid[2]);
1855         }
1856 #endif
1857         return best_bss;
1858 }
1859
1860 /*
1861  * Setup WEP configuration to the chip
1862  * The caller must hold wl->scan_lock,
1863  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1864  */
1865 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1866 {
1867         unsigned int i;
1868         struct gelic_eurus_wep_cfg *wep;
1869         struct gelic_eurus_cmd *cmd;
1870         int wep104 = 0;
1871         int have_key = 0;
1872         int ret = 0;
1873
1874         pr_debug("%s: <-\n", __func__);
1875         /* we can assume no one should uses the buffer */
1876         wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1877         if (!wep)
1878                 return -ENOMEM;
1879
1880         memset(wep, 0, sizeof(*wep));
1881
1882         if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1883                 pr_debug("%s: WEP mode\n", __func__);
1884                 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1885                         if (!test_bit(i, &wl->key_enabled))
1886                                 continue;
1887
1888                         pr_debug("%s: key#%d enabled\n", __func__, i);
1889                         have_key = 1;
1890                         if (wl->key_len[i] == 13)
1891                                 wep104 = 1;
1892                         else if (wl->key_len[i] != 5) {
1893                                 pr_info("%s: wrong wep key[%d]=%d\n",
1894                                         __func__, i, wl->key_len[i]);
1895                                 ret = -EINVAL;
1896                                 goto out;
1897                         }
1898                         memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1899                 }
1900
1901                 if (!have_key) {
1902                         pr_info("%s: all wep key disabled\n", __func__);
1903                         ret = -EINVAL;
1904                         goto out;
1905                 }
1906
1907                 if (wep104) {
1908                         pr_debug("%s: 104bit key\n", __func__);
1909                         wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1910                 } else {
1911                         pr_debug("%s: 40bit key\n", __func__);
1912                         wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1913                 }
1914         } else {
1915                 pr_debug("%s: NO encryption\n", __func__);
1916                 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1917         }
1918
1919         /* issue wep setup */
1920         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1921                                    wep, sizeof(*wep));
1922         if (!cmd)
1923                 ret = -ENOMEM;
1924         else if (cmd->status || cmd->cmd_status)
1925                 ret = -ENXIO;
1926
1927         kfree(cmd);
1928 out:
1929         free_page((unsigned long)wep);
1930         pr_debug("%s: ->\n", __func__);
1931         return ret;
1932 }
1933
1934 #ifdef DEBUG
1935 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1936 {
1937         switch (sec) {
1938         case GELIC_EURUS_WPA_SEC_NONE:
1939                 return "NONE";
1940                 break;
1941         case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1942                 return "WPA_TKIP_TKIP";
1943                 break;
1944         case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1945                 return "WPA_TKIP_AES";
1946                 break;
1947         case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1948                 return "WPA_AES_AES";
1949                 break;
1950         case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1951                 return "WPA2_TKIP_TKIP";
1952                 break;
1953         case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1954                 return "WPA2_TKIP_AES";
1955                 break;
1956         case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1957                 return "WPA2_AES_AES";
1958                 break;
1959         }
1960         return "";
1961 };
1962 #endif
1963
1964 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1965 {
1966         struct gelic_eurus_wpa_cfg *wpa;
1967         struct gelic_eurus_cmd *cmd;
1968         u16 security;
1969         int ret = 0;
1970
1971         pr_debug("%s: <-\n", __func__);
1972         /* we can assume no one should uses the buffer */
1973         wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1974         if (!wpa)
1975                 return -ENOMEM;
1976
1977         memset(wpa, 0, sizeof(*wpa));
1978
1979         if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1980                 pr_info("%s: PSK not configured yet\n", __func__);
1981
1982         /* copy key */
1983         memcpy(wpa->psk, wl->psk, wl->psk_len);
1984
1985         /* set security level */
1986         if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1987                 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1988                         security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1989                 } else {
1990                         if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1991                             precise_ie())
1992                                 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1993                         else
1994                                 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1995                 }
1996         } else {
1997                 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1998                         security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1999                 } else {
2000                         if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
2001                             precise_ie())
2002                                 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
2003                         else
2004                                 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
2005                 }
2006         }
2007         wpa->security = cpu_to_be16(security);
2008
2009         /* PSK type */
2010         wpa->psk_type = cpu_to_be16(wl->psk_type);
2011 #ifdef DEBUG
2012         pr_debug("%s: sec=%s psktype=%s\nn", __func__,
2013                  wpasecstr(wpa->security),
2014                  (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
2015                  "BIN" : "passphrase");
2016 #if 0
2017         /*
2018          * don't enable here if you plan to submit
2019          * the debug log because this dumps your precious
2020          * passphrase/key.
2021          */
2022         pr_debug("%s: psk=%s\n",
2023                  (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
2024                  (char *)"N/A" : (char *)wpa->psk);
2025 #endif
2026 #endif
2027         /* issue wpa setup */
2028         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
2029                                    wpa, sizeof(*wpa));
2030         if (!cmd)
2031                 ret = -ENOMEM;
2032         else if (cmd->status || cmd->cmd_status)
2033                 ret = -ENXIO;
2034         kfree(cmd);
2035         free_page((unsigned long)wpa);
2036         pr_debug("%s: --> %d\n", __func__, ret);
2037         return ret;
2038 }
2039
2040 /*
2041  * Start association. caller must hold assoc_stat_lock
2042  */
2043 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
2044                                   struct gelic_wl_scan_info *bss)
2045 {
2046         struct gelic_eurus_cmd *cmd;
2047         struct gelic_eurus_common_cfg *common;
2048         int ret = 0;
2049         unsigned long rc;
2050
2051         pr_debug("%s: <-\n", __func__);
2052
2053         /* do common config */
2054         common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
2055         if (!common)
2056                 return -ENOMEM;
2057
2058         memset(common, 0, sizeof(*common));
2059         common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
2060         common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
2061
2062         common->scan_index = cpu_to_be16(bss->eurus_index);
2063         switch (wl->auth_method) {
2064         case GELIC_EURUS_AUTH_OPEN:
2065                 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
2066                 break;
2067         case GELIC_EURUS_AUTH_SHARED:
2068                 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
2069                 break;
2070         }
2071
2072 #ifdef DEBUG
2073         scan_list_dump(wl);
2074 #endif
2075         pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
2076                  be16_to_cpu(common->scan_index),
2077                  be16_to_cpu(common->bss_type),
2078                  be16_to_cpu(common->auth_method));
2079
2080         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
2081                                    common, sizeof(*common));
2082         if (!cmd || cmd->status || cmd->cmd_status) {
2083                 ret = -ENOMEM;
2084                 kfree(cmd);
2085                 goto out;
2086         }
2087         kfree(cmd);
2088
2089         /* WEP/WPA */
2090         switch (wl->wpa_level) {
2091         case GELIC_WL_WPA_LEVEL_NONE:
2092                 /* If WEP or no security, setup WEP config */
2093                 ret = gelic_wl_do_wep_setup(wl);
2094                 break;
2095         case GELIC_WL_WPA_LEVEL_WPA:
2096         case GELIC_WL_WPA_LEVEL_WPA2:
2097                 ret = gelic_wl_do_wpa_setup(wl);
2098                 break;
2099         };
2100
2101         if (ret) {
2102                 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
2103                          ret);
2104         }
2105
2106         /* start association */
2107         init_completion(&wl->assoc_done);
2108         wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2109         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2110                                    NULL, 0);
2111         if (!cmd || cmd->status || cmd->cmd_status) {
2112                 pr_debug("%s: assoc request failed\n", __func__);
2113                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2114                 kfree(cmd);
2115                 ret = -ENOMEM;
2116                 gelic_wl_send_iwap_event(wl, NULL);
2117                 goto out;
2118         }
2119         kfree(cmd);
2120
2121         /* wait for connected event */
2122         rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2123
2124         if (!rc) {
2125                 /* timeouted.  Maybe key or cyrpt mode is wrong */
2126                 pr_info("%s: connect timeout \n", __func__);
2127                 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2128                                            NULL, 0);
2129                 kfree(cmd);
2130                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2131                 gelic_wl_send_iwap_event(wl, NULL);
2132                 ret = -ENXIO;
2133         } else {
2134                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2135                 /* copy bssid */
2136                 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2137
2138                 /* send connect event */
2139                 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2140                 pr_info("%s: connected\n", __func__);
2141         }
2142 out:
2143         free_page((unsigned long)common);
2144         pr_debug("%s: ->\n", __func__);
2145         return ret;
2146 }
2147
2148 /*
2149  * connected event
2150  */
2151 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2152                                      u64 event)
2153 {
2154         u64 desired_event = 0;
2155
2156         switch (wl->wpa_level) {
2157         case GELIC_WL_WPA_LEVEL_NONE:
2158                 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2159                 break;
2160         case GELIC_WL_WPA_LEVEL_WPA:
2161         case GELIC_WL_WPA_LEVEL_WPA2:
2162                 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2163                 break;
2164         }
2165
2166         if (desired_event == event) {
2167                 pr_debug("%s: completed \n", __func__);
2168                 complete(&wl->assoc_done);
2169                 netif_carrier_on(port_to_netdev(wl_port(wl)));
2170         } else
2171                 pr_debug("%s: event %#llx under wpa\n",
2172                                  __func__, event);
2173 }
2174
2175 /*
2176  * disconnect event
2177  */
2178 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2179                                       u64 event)
2180 {
2181         struct gelic_eurus_cmd *cmd;
2182         int lock;
2183
2184         /*
2185          * If we fall here in the middle of association,
2186          * associate_bss() should be waiting for complation of
2187          * wl->assoc_done.
2188          * As it waits with timeout, just leave assoc_done
2189          * uncompleted, then it terminates with timeout
2190          */
2191         if (!mutex_trylock(&wl->assoc_stat_lock)) {
2192                 pr_debug("%s: already locked\n", __func__);
2193                 lock = 0;
2194         } else {
2195                 pr_debug("%s: obtain lock\n", __func__);
2196                 lock = 1;
2197         }
2198
2199         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2200         kfree(cmd);
2201
2202         /* send disconnected event to the supplicant */
2203         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2204                 gelic_wl_send_iwap_event(wl, NULL);
2205
2206         wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2207         netif_carrier_off(port_to_netdev(wl_port(wl)));
2208
2209         if (lock)
2210                 mutex_unlock(&wl->assoc_stat_lock);
2211 }
2212 /*
2213  * event worker
2214  */
2215 #ifdef DEBUG
2216 static const char *eventstr(enum gelic_lv1_wl_event event)
2217 {
2218         static char buf[32];
2219         char *ret;
2220         if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2221                 ret = "EURUS_READY";
2222         else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2223                 ret = "SCAN_COMPLETED";
2224         else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2225                 ret = "DEAUTH";
2226         else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2227                 ret = "BEACON_LOST";
2228         else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2229                 ret = "CONNECTED";
2230         else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2231                 ret = "WPA_CONNECTED";
2232         else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2233                 ret = "WPA_ERROR";
2234         else {
2235                 sprintf(buf, "Unknown(%#x)", event);
2236                 ret = buf;
2237         }
2238         return ret;
2239 }
2240 #else
2241 static const char *eventstr(enum gelic_lv1_wl_event event)
2242 {
2243         return NULL;
2244 }
2245 #endif
2246 static void gelic_wl_event_worker(struct work_struct *work)
2247 {
2248         struct gelic_wl_info *wl;
2249         struct gelic_port *port;
2250         u64 event, tmp;
2251         int status;
2252
2253         pr_debug("%s:start\n", __func__);
2254         wl = container_of(work, struct gelic_wl_info, event_work.work);
2255         port = wl_port(wl);
2256         while (1) {
2257                 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2258                                          GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2259                                          &event, &tmp);
2260                 if (status) {
2261                         if (status != LV1_NO_ENTRY)
2262                                 pr_debug("%s:wlan event failed %d\n",
2263                                          __func__, status);
2264                         /* got all events */
2265                         pr_debug("%s:end\n", __func__);
2266                         return;
2267                 }
2268                 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2269                 switch (event) {
2270                 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2271                         gelic_wl_scan_complete_event(wl);
2272                         break;
2273                 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2274                 case GELIC_LV1_WL_EVENT_DEAUTH:
2275                         gelic_wl_disconnect_event(wl, event);
2276                         break;
2277                 case GELIC_LV1_WL_EVENT_CONNECTED:
2278                 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2279                         gelic_wl_connected_event(wl, event);
2280                         break;
2281                 default:
2282                         break;
2283                 }
2284         } /* while */
2285 }
2286 /*
2287  * association worker
2288  */
2289 static void gelic_wl_assoc_worker(struct work_struct *work)
2290 {
2291         struct gelic_wl_info *wl;
2292
2293         struct gelic_wl_scan_info *best_bss;
2294         int ret;
2295         unsigned long irqflag;
2296         u8 *essid;
2297         size_t essid_len;
2298
2299         wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2300
2301         mutex_lock(&wl->assoc_stat_lock);
2302
2303         if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2304                 goto out;
2305
2306         spin_lock_irqsave(&wl->lock, irqflag);
2307         if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2308                 pr_debug("%s: assoc ESSID configured %s\n", __func__,
2309                          wl->essid);
2310                 essid = wl->essid;
2311                 essid_len = wl->essid_len;
2312         } else {
2313                 essid = NULL;
2314                 essid_len = 0;
2315         }
2316         spin_unlock_irqrestore(&wl->lock, irqflag);
2317
2318         ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2319         if (ret == -ERESTARTSYS) {
2320                 pr_debug("%s: scan start failed association\n", __func__);
2321                 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2322                 goto out;
2323         } else if (ret) {
2324                 pr_info("%s: scan prerequisite failed\n", __func__);
2325                 goto out;
2326         }
2327
2328         /*
2329          * Wait for bss scan completion
2330          * If we have scan list already, gelic_wl_start_scan()
2331          * returns OK and raises the complete.  Thus,
2332          * it's ok to wait unconditionally here
2333          */
2334         wait_for_completion(&wl->scan_done);
2335
2336         pr_debug("%s: scan done\n", __func__);
2337         mutex_lock(&wl->scan_lock);
2338         if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2339                 gelic_wl_send_iwap_event(wl, NULL);
2340                 pr_info("%s: no scan list. association failed\n", __func__);
2341                 goto scan_lock_out;
2342         }
2343
2344         /* find best matching bss */
2345         best_bss = gelic_wl_find_best_bss(wl);
2346         if (!best_bss) {
2347                 gelic_wl_send_iwap_event(wl, NULL);
2348                 pr_info("%s: no bss matched. association failed\n", __func__);
2349                 goto scan_lock_out;
2350         }
2351
2352         /* ok, do association */
2353         ret = gelic_wl_associate_bss(wl, best_bss);
2354         if (ret)
2355                 pr_info("%s: association failed %d\n", __func__, ret);
2356 scan_lock_out:
2357         mutex_unlock(&wl->scan_lock);
2358 out:
2359         mutex_unlock(&wl->assoc_stat_lock);
2360 }
2361 /*
2362  * Interrupt handler
2363  * Called from the ethernet interrupt handler
2364  * Processes wireless specific virtual interrupts only
2365  */
2366 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2367 {
2368         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2369
2370         if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2371                 pr_debug("%s:cmd complete\n", __func__);
2372                 complete(&wl->cmd_done_intr);
2373         }
2374
2375         if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2376                 pr_debug("%s:event received\n", __func__);
2377                 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2378         }
2379 }
2380
2381 /*
2382  * driver helpers
2383  */
2384 #define IW_IOCTL(n) [(n) - SIOCSIWCOMMIT]
2385 static const iw_handler gelic_wl_wext_handler[] =
2386 {
2387         IW_IOCTL(SIOCGIWNAME)           = gelic_wl_get_name,
2388         IW_IOCTL(SIOCGIWRANGE)          = gelic_wl_get_range,
2389         IW_IOCTL(SIOCSIWSCAN)           = gelic_wl_set_scan,
2390         IW_IOCTL(SIOCGIWSCAN)           = gelic_wl_get_scan,
2391         IW_IOCTL(SIOCSIWAUTH)           = gelic_wl_set_auth,
2392         IW_IOCTL(SIOCGIWAUTH)           = gelic_wl_get_auth,
2393         IW_IOCTL(SIOCSIWESSID)          = gelic_wl_set_essid,
2394         IW_IOCTL(SIOCGIWESSID)          = gelic_wl_get_essid,
2395         IW_IOCTL(SIOCSIWENCODE)         = gelic_wl_set_encode,
2396         IW_IOCTL(SIOCGIWENCODE)         = gelic_wl_get_encode,
2397         IW_IOCTL(SIOCSIWAP)             = gelic_wl_set_ap,
2398         IW_IOCTL(SIOCGIWAP)             = gelic_wl_get_ap,
2399         IW_IOCTL(SIOCSIWENCODEEXT)      = gelic_wl_set_encodeext,
2400         IW_IOCTL(SIOCGIWENCODEEXT)      = gelic_wl_get_encodeext,
2401         IW_IOCTL(SIOCSIWMODE)           = gelic_wl_set_mode,
2402         IW_IOCTL(SIOCGIWMODE)           = gelic_wl_get_mode,
2403         IW_IOCTL(SIOCGIWNICKN)          = gelic_wl_get_nick,
2404 };
2405
2406 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
2407 static struct iw_priv_args gelic_wl_private_args[] =
2408 {
2409         {
2410                 .cmd = GELIC_WL_PRIV_SET_PSK,
2411                 .set_args = IW_PRIV_TYPE_CHAR |
2412                 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2413                 .name = "set_psk"
2414         },
2415         {
2416                 .cmd = GELIC_WL_PRIV_GET_PSK,
2417                 .get_args = IW_PRIV_TYPE_CHAR |
2418                 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2419                 .name = "get_psk"
2420         }
2421 };
2422
2423 static const iw_handler gelic_wl_private_handler[] =
2424 {
2425         gelic_wl_priv_set_psk,
2426         gelic_wl_priv_get_psk,
2427 };
2428 #endif
2429
2430 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2431         .num_standard           = ARRAY_SIZE(gelic_wl_wext_handler),
2432         .standard               = gelic_wl_wext_handler,
2433         .get_wireless_stats     = gelic_wl_get_wireless_stats,
2434 #ifdef CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE
2435         .num_private            = ARRAY_SIZE(gelic_wl_private_handler),
2436         .num_private_args       = ARRAY_SIZE(gelic_wl_private_args),
2437         .private                = gelic_wl_private_handler,
2438         .private_args           = gelic_wl_private_args,
2439 #endif
2440 };
2441
2442 static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2443 {
2444         struct net_device *netdev;
2445         struct gelic_port *port;
2446         struct gelic_wl_info *wl;
2447         unsigned int i;
2448
2449         pr_debug("%s:start\n", __func__);
2450         netdev = alloc_etherdev(sizeof(struct gelic_port) +
2451                                 sizeof(struct gelic_wl_info));
2452         pr_debug("%s: netdev =%p card=%p \np", __func__, netdev, card);
2453         if (!netdev)
2454                 return NULL;
2455
2456         strcpy(netdev->name, "wlan%d");
2457
2458         port = netdev_priv(netdev);
2459         port->netdev = netdev;
2460         port->card = card;
2461         port->type = GELIC_PORT_WIRELESS;
2462
2463         wl = port_wl(port);
2464         pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2465
2466         /* allocate scan list */
2467         wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2468                                GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2469
2470         if (!wl->networks)
2471                 goto fail_bss;
2472
2473         wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2474         if (!wl->eurus_cmd_queue)
2475                 goto fail_cmd_workqueue;
2476
2477         wl->event_queue = create_singlethread_workqueue("gelic_event");
2478         if (!wl->event_queue)
2479                 goto fail_event_workqueue;
2480
2481         INIT_LIST_HEAD(&wl->network_free_list);
2482         INIT_LIST_HEAD(&wl->network_list);
2483         for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2484                 list_add_tail(&wl->networks[i].list,
2485                               &wl->network_free_list);
2486         init_completion(&wl->cmd_done_intr);
2487
2488         INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2489         INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2490         mutex_init(&wl->scan_lock);
2491         mutex_init(&wl->assoc_stat_lock);
2492
2493         init_completion(&wl->scan_done);
2494         /* for the case that no scan request is issued and stop() is called */
2495         complete(&wl->scan_done);
2496
2497         spin_lock_init(&wl->lock);
2498
2499         wl->scan_age = 5*HZ; /* FIXME */
2500
2501         /* buffer for receiving scanned list etc */
2502         BUILD_BUG_ON(PAGE_SIZE <
2503                      sizeof(struct gelic_eurus_scan_info) *
2504                      GELIC_EURUS_MAX_SCAN);
2505         pr_debug("%s:end\n", __func__);
2506         return netdev;
2507
2508 fail_event_workqueue:
2509         destroy_workqueue(wl->eurus_cmd_queue);
2510 fail_cmd_workqueue:
2511         kfree(wl->networks);
2512 fail_bss:
2513         free_netdev(netdev);
2514         pr_debug("%s:end error\n", __func__);
2515         return NULL;
2516
2517 }
2518
2519 static void gelic_wl_free(struct gelic_wl_info *wl)
2520 {
2521         struct gelic_wl_scan_info *scan_info;
2522         unsigned int i;
2523
2524         pr_debug("%s: <-\n", __func__);
2525
2526         pr_debug("%s: destroy queues\n", __func__);
2527         destroy_workqueue(wl->eurus_cmd_queue);
2528         destroy_workqueue(wl->event_queue);
2529
2530         scan_info = wl->networks;
2531         for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2532                 kfree(scan_info->hwinfo);
2533         kfree(wl->networks);
2534
2535         free_netdev(port_to_netdev(wl_port(wl)));
2536
2537         pr_debug("%s: ->\n", __func__);
2538 }
2539
2540 static int gelic_wl_try_associate(struct net_device *netdev)
2541 {
2542         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2543         int ret = -1;
2544         unsigned int i;
2545
2546         pr_debug("%s: <-\n", __func__);
2547
2548         /* check constraits for start association */
2549         /* for no access restriction AP */
2550         if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2551                 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2552                              &wl->stat))
2553                         goto do_associate;
2554                 else {
2555                         pr_debug("%s: no wep, not configured\n", __func__);
2556                         return ret;
2557                 }
2558         }
2559
2560         /* for WEP, one of four keys should be set */
2561         if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2562                 /* one of keys set */
2563                 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2564                         if (test_bit(i, &wl->key_enabled))
2565                             goto do_associate;
2566                 }
2567                 pr_debug("%s: WEP, but no key specified\n", __func__);
2568                 return ret;
2569         }
2570
2571         /* for WPA[2], psk should be set */
2572         if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2573             (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2574                 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2575                              &wl->stat))
2576                         goto do_associate;
2577                 else {
2578                         pr_debug("%s: AES/TKIP, but PSK not configured\n",
2579                                  __func__);
2580                         return ret;
2581                 }
2582         }
2583
2584 do_associate:
2585         ret = schedule_delayed_work(&wl->assoc_work, 0);
2586         pr_debug("%s: start association work %d\n", __func__, ret);
2587         return ret;
2588 }
2589
2590 /*
2591  * netdev handlers
2592  */
2593 static int gelic_wl_open(struct net_device *netdev)
2594 {
2595         struct gelic_card *card = netdev_card(netdev);
2596
2597         pr_debug("%s:->%p\n", __func__, netdev);
2598
2599         gelic_card_up(card);
2600
2601         /* try to associate */
2602         gelic_wl_try_associate(netdev);
2603
2604         netif_start_queue(netdev);
2605
2606         pr_debug("%s:<-\n", __func__);
2607         return 0;
2608 }
2609
2610 /*
2611  * reset state machine
2612  */
2613 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2614 {
2615         struct gelic_wl_scan_info *target;
2616         struct gelic_wl_scan_info *tmp;
2617
2618         /* empty scan list */
2619         list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2620                 list_move_tail(&target->list, &wl->network_free_list);
2621         }
2622         wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2623
2624         /* clear configuration */
2625         wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2626         wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2627         wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2628         wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2629
2630         wl->key_enabled = 0;
2631         wl->current_key = 0;
2632
2633         wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2634         wl->psk_len = 0;
2635
2636         wl->essid_len = 0;
2637         memset(wl->essid, 0, sizeof(wl->essid));
2638         memset(wl->bssid, 0, sizeof(wl->bssid));
2639         memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2640
2641         wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2642
2643         memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2644         /* all status bit clear */
2645         wl->stat = 0;
2646         return 0;
2647 }
2648
2649 /*
2650  * Tell eurus to terminate association
2651  */
2652 static void gelic_wl_disconnect(struct net_device *netdev)
2653 {
2654         struct gelic_port *port = netdev_priv(netdev);
2655         struct gelic_wl_info *wl = port_wl(port);
2656         struct gelic_eurus_cmd *cmd;
2657
2658         /*
2659          * If scann process is running on chip,
2660          * further requests will be rejected
2661          */
2662         if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2663                 wait_for_completion_timeout(&wl->scan_done, HZ);
2664
2665         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2666         kfree(cmd);
2667         gelic_wl_send_iwap_event(wl, NULL);
2668 };
2669
2670 static int gelic_wl_stop(struct net_device *netdev)
2671 {
2672         struct gelic_port *port = netdev_priv(netdev);
2673         struct gelic_wl_info *wl = port_wl(port);
2674         struct gelic_card *card = netdev_card(netdev);
2675
2676         pr_debug("%s:<-\n", __func__);
2677
2678         /*
2679          * Cancel pending association work.
2680          * event work can run after netdev down
2681          */
2682         cancel_delayed_work(&wl->assoc_work);
2683
2684         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2685                 gelic_wl_disconnect(netdev);
2686
2687         /* reset our state machine */
2688         gelic_wl_reset_state(wl);
2689
2690         netif_stop_queue(netdev);
2691
2692         gelic_card_down(card);
2693
2694         pr_debug("%s:->\n", __func__);
2695         return 0;
2696 }
2697
2698 /* -- */
2699
2700 static const struct net_device_ops gelic_wl_netdevice_ops = {
2701         .ndo_open = gelic_wl_open,
2702         .ndo_stop = gelic_wl_stop,
2703         .ndo_start_xmit = gelic_net_xmit,
2704         .ndo_set_multicast_list = gelic_net_set_multi,
2705         .ndo_change_mtu = gelic_net_change_mtu,
2706         .ndo_tx_timeout = gelic_net_tx_timeout,
2707         .ndo_validate_addr = eth_validate_addr,
2708 #ifdef CONFIG_NET_POLL_CONTROLLER
2709         .ndo_poll_controller = gelic_net_poll_controller,
2710 #endif
2711 };
2712
2713 static struct ethtool_ops gelic_wl_ethtool_ops = {
2714         .get_drvinfo    = gelic_net_get_drvinfo,
2715         .get_link       = gelic_wl_get_link,
2716         .get_tx_csum    = ethtool_op_get_tx_csum,
2717         .set_tx_csum    = ethtool_op_set_tx_csum,
2718         .get_rx_csum    = gelic_net_get_rx_csum,
2719         .set_rx_csum    = gelic_net_set_rx_csum,
2720 };
2721
2722 static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2723 {
2724         struct gelic_wl_info *wl;
2725         wl = port_wl(netdev_priv(netdev));
2726         BUG_ON(!wl);
2727         netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2728
2729         netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2730         netdev->netdev_ops = &gelic_wl_netdevice_ops;
2731         netdev->wireless_data = &wl->wireless_data;
2732         netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2733 }
2734
2735 /*
2736  * driver probe/remove
2737  */
2738 int gelic_wl_driver_probe(struct gelic_card *card)
2739 {
2740         int ret;
2741         struct net_device *netdev;
2742
2743         pr_debug("%s:start\n", __func__);
2744
2745         if (ps3_compare_firmware_version(1, 6, 0) < 0)
2746                 return 0;
2747         if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2748                 return 0;
2749
2750         /* alloc netdevice for wireless */
2751         netdev = gelic_wl_alloc(card);
2752         if (!netdev)
2753                 return -ENOMEM;
2754
2755         /* setup net_device structure */
2756         SET_NETDEV_DEV(netdev, &card->dev->core);
2757         gelic_wl_setup_netdev_ops(netdev);
2758
2759         /* setup some of net_device and register it */
2760         ret = gelic_net_setup_netdev(netdev, card);
2761         if (ret)
2762                 goto fail_setup;
2763         card->netdev[GELIC_PORT_WIRELESS] = netdev;
2764
2765         /* add enable wireless interrupt */
2766         card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2767                 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2768         /* to allow wireless commands while both interfaces are down */
2769         gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2770                                 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2771         pr_debug("%s:end\n", __func__);
2772         return 0;
2773
2774 fail_setup:
2775         gelic_wl_free(port_wl(netdev_port(netdev)));
2776
2777         return ret;
2778 }
2779
2780 int gelic_wl_driver_remove(struct gelic_card *card)
2781 {
2782         struct gelic_wl_info *wl;
2783         struct net_device *netdev;
2784
2785         pr_debug("%s:start\n", __func__);
2786
2787         if (ps3_compare_firmware_version(1, 6, 0) < 0)
2788                 return 0;
2789         if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2790                 return 0;
2791
2792         netdev = card->netdev[GELIC_PORT_WIRELESS];
2793         wl = port_wl(netdev_priv(netdev));
2794
2795         /* if the interface was not up, but associated */
2796         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2797                 gelic_wl_disconnect(netdev);
2798
2799         complete(&wl->cmd_done_intr);
2800
2801         /* cancel all work queue */
2802         cancel_delayed_work(&wl->assoc_work);
2803         cancel_delayed_work(&wl->event_work);
2804         flush_workqueue(wl->eurus_cmd_queue);
2805         flush_workqueue(wl->event_queue);
2806
2807         unregister_netdev(netdev);
2808
2809         /* disable wireless interrupt */
2810         pr_debug("%s: disable intr\n", __func__);
2811         card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2812                             GELIC_CARD_WLAN_COMMAND_COMPLETED);
2813         /* free bss list, netdev*/
2814         gelic_wl_free(wl);
2815         pr_debug("%s:end\n", __func__);
2816         return 0;
2817 }