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 /* SIOCGIWNICKN */
1393 static int gelic_wl_get_nick(struct net_device *net_dev,
1394                                   struct iw_request_info *info,
1395                                   union iwreq_data *data, char *extra)
1396 {
1397         strcpy(extra, "gelic_wl");
1398         data->data.length = strlen(extra);
1399         data->data.flags = 1;
1400         return 0;
1401 }
1402
1403
1404 /* --- */
1405
1406 static struct iw_statistics *gelic_wl_get_wireless_stats(
1407         struct net_device *netdev)
1408 {
1409
1410         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1411         struct gelic_eurus_cmd *cmd;
1412         struct iw_statistics *is;
1413         struct gelic_eurus_rssi_info *rssi;
1414         void *buf;
1415
1416         pr_debug("%s: <-\n", __func__);
1417
1418         buf = (void *)__get_free_page(GFP_KERNEL);
1419         if (!buf)
1420                 return NULL;
1421
1422         is = &wl->iwstat;
1423         memset(is, 0, sizeof(*is));
1424         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1425                                    buf, sizeof(*rssi));
1426         if (cmd && !cmd->status && !cmd->cmd_status) {
1427                 rssi = buf;
1428                 is->qual.level = be16_to_cpu(rssi->rssi);
1429                 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1430                         IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1431         } else
1432                 /* not associated */
1433                 is->qual.updated = IW_QUAL_ALL_INVALID;
1434
1435         kfree(cmd);
1436         free_page((unsigned long)buf);
1437         pr_debug("%s: ->\n", __func__);
1438         return is;
1439 }
1440
1441 /*
1442  *  scanning helpers
1443  */
1444 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1445                                u8 *essid, size_t essid_len)
1446 {
1447         struct gelic_eurus_cmd *cmd;
1448         int ret = 0;
1449         void *buf = NULL;
1450         size_t len;
1451
1452         pr_debug("%s: <- always=%d\n", __func__, always_scan);
1453         if (mutex_lock_interruptible(&wl->scan_lock))
1454                 return -ERESTARTSYS;
1455
1456         /*
1457          * If already a scan in progress, do not trigger more
1458          */
1459         if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1460                 pr_debug("%s: scanning now\n", __func__);
1461                 goto out;
1462         }
1463
1464         init_completion(&wl->scan_done);
1465         /*
1466          * If we have already a bss list, don't try to get new
1467          */
1468         if (!always_scan && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1469                 pr_debug("%s: already has the list\n", __func__);
1470                 complete(&wl->scan_done);
1471                 goto out;
1472         }
1473
1474         /* ESSID scan ? */
1475         if (essid_len && essid) {
1476                 buf = (void *)__get_free_page(GFP_KERNEL);
1477                 if (!buf) {
1478                         ret = -ENOMEM;
1479                         goto out;
1480                 }
1481                 len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1482                 memset(buf, 0, len);
1483                 memcpy(buf, essid, essid_len);
1484                 pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1485         } else
1486                 len = 0;
1487
1488         /*
1489          * issue start scan request
1490          */
1491         wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1492         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1493                                    buf, len);
1494         if (!cmd || cmd->status || cmd->cmd_status) {
1495                 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1496                 complete(&wl->scan_done);
1497                 ret = -ENOMEM;
1498                 goto out;
1499         }
1500         kfree(cmd);
1501 out:
1502         free_page((unsigned long)buf);
1503         mutex_unlock(&wl->scan_lock);
1504         pr_debug("%s: ->\n", __func__);
1505         return ret;
1506 }
1507
1508 /*
1509  * retrieve scan result from the chip (hypervisor)
1510  * this function is invoked by schedule work.
1511  */
1512 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1513 {
1514         struct gelic_eurus_cmd *cmd = NULL;
1515         struct gelic_wl_scan_info *target, *tmp;
1516         struct gelic_wl_scan_info *oldest = NULL;
1517         struct gelic_eurus_scan_info *scan_info;
1518         unsigned int scan_info_size;
1519         union iwreq_data data;
1520         unsigned long this_time = jiffies;
1521         unsigned int data_len, i, found, r;
1522         void *buf;
1523
1524         pr_debug("%s:start\n", __func__);
1525         mutex_lock(&wl->scan_lock);
1526
1527         buf = (void *)__get_free_page(GFP_KERNEL);
1528         if (!buf) {
1529                 pr_info("%s: scan buffer alloc failed\n", __func__);
1530                 goto out;
1531         }
1532
1533         if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1534                 /*
1535                  * stop() may be called while scanning, ignore result
1536                  */
1537                 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1538                          __func__, wl->scan_stat);
1539                 goto out;
1540         }
1541
1542         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1543                                    buf, PAGE_SIZE);
1544         if (!cmd || cmd->status || cmd->cmd_status) {
1545                 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1546                 pr_info("%s:cmd failed\n", __func__);
1547                 kfree(cmd);
1548                 goto out;
1549         }
1550         data_len = cmd->size;
1551         pr_debug("%s: data_len = %d\n", __func__, data_len);
1552         kfree(cmd);
1553
1554         /* OK, bss list retrieved */
1555         wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1556
1557         /* mark all entries are old */
1558         list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1559                 target->valid = 0;
1560                 /* expire too old entries */
1561                 if (time_before(target->last_scanned + wl->scan_age,
1562                                 this_time)) {
1563                         kfree(target->hwinfo);
1564                         target->hwinfo = NULL;
1565                         list_move_tail(&target->list, &wl->network_free_list);
1566                 }
1567         }
1568
1569         /* put them in the newtork_list */
1570         for (i = 0, scan_info_size = 0, scan_info = buf;
1571              scan_info_size < data_len;
1572              i++, scan_info_size += be16_to_cpu(scan_info->size),
1573              scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1574                 pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1575                          be16_to_cpu(scan_info->size),
1576                          &scan_info->bssid[2], scan_info);
1577
1578                 /*
1579                  * The wireless firmware may return invalid channel 0 and/or
1580                  * invalid rate if the AP emits zero length SSID ie. As this
1581                  * scan information is useless, ignore it
1582                  */
1583                 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1584                         pr_debug("%s: invalid scan info\n", __func__);
1585                         continue;
1586                 }
1587
1588                 found = 0;
1589                 oldest = NULL;
1590                 list_for_each_entry(target, &wl->network_list, list) {
1591                         if (!compare_ether_addr(&target->hwinfo->bssid[2],
1592                                                 &scan_info->bssid[2])) {
1593                                 found = 1;
1594                                 pr_debug("%s: same BBS found scanned list\n",
1595                                          __func__);
1596                                 break;
1597                         }
1598                         if (!oldest ||
1599                             (target->last_scanned < oldest->last_scanned))
1600                                 oldest = target;
1601                 }
1602
1603                 if (!found) {
1604                         /* not found in the list */
1605                         if (list_empty(&wl->network_free_list)) {
1606                                 /* expire oldest */
1607                                 target = oldest;
1608                         } else {
1609                                 target = list_entry(wl->network_free_list.next,
1610                                                     struct gelic_wl_scan_info,
1611                                                     list);
1612                         }
1613                 }
1614
1615                 /* update the item */
1616                 target->last_scanned = this_time;
1617                 target->valid = 1;
1618                 target->eurus_index = i;
1619                 kfree(target->hwinfo);
1620                 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1621                                          GFP_KERNEL);
1622                 if (!target->hwinfo) {
1623                         pr_info("%s: kzalloc failed\n", __func__);
1624                         continue;
1625                 }
1626                 /* copy hw scan info */
1627                 memcpy(target->hwinfo, scan_info, scan_info->size);
1628                 target->essid_len = strnlen(scan_info->essid,
1629                                             sizeof(scan_info->essid));
1630                 target->rate_len = 0;
1631                 for (r = 0; r < 12; r++)
1632                         if (scan_info->rate[r])
1633                                 target->rate_len++;
1634                 if (8 < target->rate_len)
1635                         pr_info("%s: AP returns %d rates\n", __func__,
1636                                 target->rate_len);
1637                 target->rate_ext_len = 0;
1638                 for (r = 0; r < 16; r++)
1639                         if (scan_info->ext_rate[r])
1640                                 target->rate_ext_len++;
1641                 list_move_tail(&target->list, &wl->network_list);
1642         }
1643         memset(&data, 0, sizeof(data));
1644         wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1645                             NULL);
1646 out:
1647         free_page((unsigned long)buf);
1648         complete(&wl->scan_done);
1649         mutex_unlock(&wl->scan_lock);
1650         pr_debug("%s:end\n", __func__);
1651 }
1652
1653 /*
1654  * Select an appropriate bss from current scan list regarding
1655  * current settings from userspace.
1656  * The caller must hold wl->scan_lock,
1657  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1658  */
1659 static void update_best(struct gelic_wl_scan_info **best,
1660                         struct gelic_wl_scan_info *candid,
1661                         int *best_weight,
1662                         int *weight)
1663 {
1664         if (*best_weight < ++(*weight)) {
1665                 *best_weight = *weight;
1666                 *best = candid;
1667         }
1668 }
1669
1670 static
1671 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1672 {
1673         struct gelic_wl_scan_info *scan_info;
1674         struct gelic_wl_scan_info *best_bss;
1675         int weight, best_weight;
1676         u16 security;
1677
1678         pr_debug("%s: <-\n", __func__);
1679
1680         best_bss = NULL;
1681         best_weight = 0;
1682
1683         list_for_each_entry(scan_info, &wl->network_list, list) {
1684                 pr_debug("%s: station %p\n", __func__, scan_info);
1685
1686                 if (!scan_info->valid) {
1687                         pr_debug("%s: station invalid\n", __func__);
1688                         continue;
1689                 }
1690
1691                 /* If bss specified, check it only */
1692                 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1693                         if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1694                                                 wl->bssid)) {
1695                                 best_bss = scan_info;
1696                                 pr_debug("%s: bssid matched\n", __func__);
1697                                 break;
1698                         } else {
1699                                 pr_debug("%s: bssid unmached\n", __func__);
1700                                 continue;
1701                         }
1702                 }
1703
1704                 weight = 0;
1705
1706                 /* security */
1707                 security = be16_to_cpu(scan_info->hwinfo->security) &
1708                         GELIC_EURUS_SCAN_SEC_MASK;
1709                 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1710                         if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1711                                 update_best(&best_bss, scan_info,
1712                                             &best_weight, &weight);
1713                         else
1714                                 continue;
1715                 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1716                         if (security == GELIC_EURUS_SCAN_SEC_WPA)
1717                                 update_best(&best_bss, scan_info,
1718                                             &best_weight, &weight);
1719                         else
1720                                 continue;
1721                 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1722                            wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1723                         if (security == GELIC_EURUS_SCAN_SEC_WEP)
1724                                 update_best(&best_bss, scan_info,
1725                                             &best_weight, &weight);
1726                         else
1727                                 continue;
1728                 }
1729
1730                 /* If ESSID is set, check it */
1731                 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1732                         if ((scan_info->essid_len == wl->essid_len) &&
1733                             !strncmp(wl->essid,
1734                                      scan_info->hwinfo->essid,
1735                                      scan_info->essid_len))
1736                                 update_best(&best_bss, scan_info,
1737                                             &best_weight, &weight);
1738                         else
1739                                 continue;
1740                 }
1741         }
1742
1743 #ifdef DEBUG
1744         pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1745         if (best_bss) {
1746                 pr_debug("%s:addr=%pM\n", __func__,
1747                          &best_bss->hwinfo->bssid[2]);
1748         }
1749 #endif
1750         return best_bss;
1751 }
1752
1753 /*
1754  * Setup WEP configuration to the chip
1755  * The caller must hold wl->scan_lock,
1756  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1757  */
1758 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1759 {
1760         unsigned int i;
1761         struct gelic_eurus_wep_cfg *wep;
1762         struct gelic_eurus_cmd *cmd;
1763         int wep104 = 0;
1764         int have_key = 0;
1765         int ret = 0;
1766
1767         pr_debug("%s: <-\n", __func__);
1768         /* we can assume no one should uses the buffer */
1769         wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1770         if (!wep)
1771                 return -ENOMEM;
1772
1773         memset(wep, 0, sizeof(*wep));
1774
1775         if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1776                 pr_debug("%s: WEP mode\n", __func__);
1777                 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1778                         if (!test_bit(i, &wl->key_enabled))
1779                                 continue;
1780
1781                         pr_debug("%s: key#%d enabled\n", __func__, i);
1782                         have_key = 1;
1783                         if (wl->key_len[i] == 13)
1784                                 wep104 = 1;
1785                         else if (wl->key_len[i] != 5) {
1786                                 pr_info("%s: wrong wep key[%d]=%d\n",
1787                                         __func__, i, wl->key_len[i]);
1788                                 ret = -EINVAL;
1789                                 goto out;
1790                         }
1791                         memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1792                 }
1793
1794                 if (!have_key) {
1795                         pr_info("%s: all wep key disabled\n", __func__);
1796                         ret = -EINVAL;
1797                         goto out;
1798                 }
1799
1800                 if (wep104) {
1801                         pr_debug("%s: 104bit key\n", __func__);
1802                         wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1803                 } else {
1804                         pr_debug("%s: 40bit key\n", __func__);
1805                         wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1806                 }
1807         } else {
1808                 pr_debug("%s: NO encryption\n", __func__);
1809                 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1810         }
1811
1812         /* issue wep setup */
1813         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1814                                    wep, sizeof(*wep));
1815         if (!cmd)
1816                 ret = -ENOMEM;
1817         else if (cmd->status || cmd->cmd_status)
1818                 ret = -ENXIO;
1819
1820         kfree(cmd);
1821 out:
1822         free_page((unsigned long)wep);
1823         pr_debug("%s: ->\n", __func__);
1824         return ret;
1825 }
1826
1827 #ifdef DEBUG
1828 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1829 {
1830         switch (sec) {
1831         case GELIC_EURUS_WPA_SEC_NONE:
1832                 return "NONE";
1833                 break;
1834         case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1835                 return "WPA_TKIP_TKIP";
1836                 break;
1837         case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1838                 return "WPA_TKIP_AES";
1839                 break;
1840         case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1841                 return "WPA_AES_AES";
1842                 break;
1843         case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1844                 return "WPA2_TKIP_TKIP";
1845                 break;
1846         case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1847                 return "WPA2_TKIP_AES";
1848                 break;
1849         case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1850                 return "WPA2_AES_AES";
1851                 break;
1852         }
1853         return "";
1854 };
1855 #endif
1856
1857 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1858 {
1859         struct gelic_eurus_wpa_cfg *wpa;
1860         struct gelic_eurus_cmd *cmd;
1861         u16 security;
1862         int ret = 0;
1863
1864         pr_debug("%s: <-\n", __func__);
1865         /* we can assume no one should uses the buffer */
1866         wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1867         if (!wpa)
1868                 return -ENOMEM;
1869
1870         memset(wpa, 0, sizeof(*wpa));
1871
1872         if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1873                 pr_info("%s: PSK not configured yet\n", __func__);
1874
1875         /* copy key */
1876         memcpy(wpa->psk, wl->psk, wl->psk_len);
1877
1878         /* set security level */
1879         if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1880                 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1881                         security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1882                 } else {
1883                         if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1884                             precise_ie())
1885                                 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1886                         else
1887                                 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1888                 }
1889         } else {
1890                 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1891                         security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1892                 } else {
1893                         if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1894                             precise_ie())
1895                                 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1896                         else
1897                                 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1898                 }
1899         }
1900         wpa->security = cpu_to_be16(security);
1901
1902         /* PSK type */
1903         wpa->psk_type = cpu_to_be16(wl->psk_type);
1904 #ifdef DEBUG
1905         pr_debug("%s: sec=%s psktype=%s\nn", __func__,
1906                  wpasecstr(wpa->security),
1907                  (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1908                  "BIN" : "passphrase");
1909 #if 0
1910         /*
1911          * don't enable here if you plan to submit
1912          * the debug log because this dumps your precious
1913          * passphrase/key.
1914          */
1915         pr_debug("%s: psk=%s\n",
1916                  (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1917                  (char *)"N/A" : (char *)wpa->psk);
1918 #endif
1919 #endif
1920         /* issue wpa setup */
1921         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1922                                    wpa, sizeof(*wpa));
1923         if (!cmd)
1924                 ret = -ENOMEM;
1925         else if (cmd->status || cmd->cmd_status)
1926                 ret = -ENXIO;
1927         kfree(cmd);
1928         free_page((unsigned long)wpa);
1929         pr_debug("%s: --> %d\n", __func__, ret);
1930         return ret;
1931 }
1932
1933 /*
1934  * Start association. caller must hold assoc_stat_lock
1935  */
1936 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1937                                   struct gelic_wl_scan_info *bss)
1938 {
1939         struct gelic_eurus_cmd *cmd;
1940         struct gelic_eurus_common_cfg *common;
1941         int ret = 0;
1942         unsigned long rc;
1943
1944         pr_debug("%s: <-\n", __func__);
1945
1946         /* do common config */
1947         common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1948         if (!common)
1949                 return -ENOMEM;
1950
1951         memset(common, 0, sizeof(*common));
1952         common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1953         common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1954
1955         common->scan_index = cpu_to_be16(bss->eurus_index);
1956         switch (wl->auth_method) {
1957         case GELIC_EURUS_AUTH_OPEN:
1958                 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1959                 break;
1960         case GELIC_EURUS_AUTH_SHARED:
1961                 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1962                 break;
1963         }
1964
1965 #ifdef DEBUG
1966         scan_list_dump(wl);
1967 #endif
1968         pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1969                  be16_to_cpu(common->scan_index),
1970                  be16_to_cpu(common->bss_type),
1971                  be16_to_cpu(common->auth_method));
1972
1973         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1974                                    common, sizeof(*common));
1975         if (!cmd || cmd->status || cmd->cmd_status) {
1976                 ret = -ENOMEM;
1977                 kfree(cmd);
1978                 goto out;
1979         }
1980         kfree(cmd);
1981
1982         /* WEP/WPA */
1983         switch (wl->wpa_level) {
1984         case GELIC_WL_WPA_LEVEL_NONE:
1985                 /* If WEP or no security, setup WEP config */
1986                 ret = gelic_wl_do_wep_setup(wl);
1987                 break;
1988         case GELIC_WL_WPA_LEVEL_WPA:
1989         case GELIC_WL_WPA_LEVEL_WPA2:
1990                 ret = gelic_wl_do_wpa_setup(wl);
1991                 break;
1992         };
1993
1994         if (ret) {
1995                 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1996                          ret);
1997                 ret = -EPERM;
1998                 gelic_wl_send_iwap_event(wl, NULL);
1999                 goto out;
2000         }
2001
2002         /* start association */
2003         init_completion(&wl->assoc_done);
2004         wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2005         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2006                                    NULL, 0);
2007         if (!cmd || cmd->status || cmd->cmd_status) {
2008                 pr_debug("%s: assoc request failed\n", __func__);
2009                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2010                 kfree(cmd);
2011                 ret = -ENOMEM;
2012                 gelic_wl_send_iwap_event(wl, NULL);
2013                 goto out;
2014         }
2015         kfree(cmd);
2016
2017         /* wait for connected event */
2018         rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2019
2020         if (!rc) {
2021                 /* timeouted.  Maybe key or cyrpt mode is wrong */
2022                 pr_info("%s: connect timeout \n", __func__);
2023                 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2024                                            NULL, 0);
2025                 kfree(cmd);
2026                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2027                 gelic_wl_send_iwap_event(wl, NULL);
2028                 ret = -ENXIO;
2029         } else {
2030                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2031                 /* copy bssid */
2032                 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2033
2034                 /* send connect event */
2035                 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2036                 pr_info("%s: connected\n", __func__);
2037         }
2038 out:
2039         free_page((unsigned long)common);
2040         pr_debug("%s: ->\n", __func__);
2041         return ret;
2042 }
2043
2044 /*
2045  * connected event
2046  */
2047 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2048                                      u64 event)
2049 {
2050         u64 desired_event = 0;
2051
2052         switch (wl->wpa_level) {
2053         case GELIC_WL_WPA_LEVEL_NONE:
2054                 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2055                 break;
2056         case GELIC_WL_WPA_LEVEL_WPA:
2057         case GELIC_WL_WPA_LEVEL_WPA2:
2058                 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2059                 break;
2060         }
2061
2062         if (desired_event == event) {
2063                 pr_debug("%s: completed \n", __func__);
2064                 complete(&wl->assoc_done);
2065                 netif_carrier_on(port_to_netdev(wl_port(wl)));
2066         } else
2067                 pr_debug("%s: event %#llx under wpa\n",
2068                                  __func__, event);
2069 }
2070
2071 /*
2072  * disconnect event
2073  */
2074 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2075                                       u64 event)
2076 {
2077         struct gelic_eurus_cmd *cmd;
2078         int lock;
2079
2080         /*
2081          * If we fall here in the middle of association,
2082          * associate_bss() should be waiting for complation of
2083          * wl->assoc_done.
2084          * As it waits with timeout, just leave assoc_done
2085          * uncompleted, then it terminates with timeout
2086          */
2087         if (!mutex_trylock(&wl->assoc_stat_lock)) {
2088                 pr_debug("%s: already locked\n", __func__);
2089                 lock = 0;
2090         } else {
2091                 pr_debug("%s: obtain lock\n", __func__);
2092                 lock = 1;
2093         }
2094
2095         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2096         kfree(cmd);
2097
2098         /* send disconnected event to the supplicant */
2099         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2100                 gelic_wl_send_iwap_event(wl, NULL);
2101
2102         wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2103         netif_carrier_off(port_to_netdev(wl_port(wl)));
2104
2105         if (lock)
2106                 mutex_unlock(&wl->assoc_stat_lock);
2107 }
2108 /*
2109  * event worker
2110  */
2111 #ifdef DEBUG
2112 static const char *eventstr(enum gelic_lv1_wl_event event)
2113 {
2114         static char buf[32];
2115         char *ret;
2116         if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2117                 ret = "EURUS_READY";
2118         else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2119                 ret = "SCAN_COMPLETED";
2120         else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2121                 ret = "DEAUTH";
2122         else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2123                 ret = "BEACON_LOST";
2124         else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2125                 ret = "CONNECTED";
2126         else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2127                 ret = "WPA_CONNECTED";
2128         else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2129                 ret = "WPA_ERROR";
2130         else {
2131                 sprintf(buf, "Unknown(%#x)", event);
2132                 ret = buf;
2133         }
2134         return ret;
2135 }
2136 #else
2137 static const char *eventstr(enum gelic_lv1_wl_event event)
2138 {
2139         return NULL;
2140 }
2141 #endif
2142 static void gelic_wl_event_worker(struct work_struct *work)
2143 {
2144         struct gelic_wl_info *wl;
2145         struct gelic_port *port;
2146         u64 event, tmp;
2147         int status;
2148
2149         pr_debug("%s:start\n", __func__);
2150         wl = container_of(work, struct gelic_wl_info, event_work.work);
2151         port = wl_port(wl);
2152         while (1) {
2153                 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2154                                          GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2155                                          &event, &tmp);
2156                 if (status) {
2157                         if (status != LV1_NO_ENTRY)
2158                                 pr_debug("%s:wlan event failed %d\n",
2159                                          __func__, status);
2160                         /* got all events */
2161                         pr_debug("%s:end\n", __func__);
2162                         return;
2163                 }
2164                 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2165                 switch (event) {
2166                 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2167                         gelic_wl_scan_complete_event(wl);
2168                         break;
2169                 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2170                 case GELIC_LV1_WL_EVENT_DEAUTH:
2171                         gelic_wl_disconnect_event(wl, event);
2172                         break;
2173                 case GELIC_LV1_WL_EVENT_CONNECTED:
2174                 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2175                         gelic_wl_connected_event(wl, event);
2176                         break;
2177                 default:
2178                         break;
2179                 }
2180         } /* while */
2181 }
2182 /*
2183  * association worker
2184  */
2185 static void gelic_wl_assoc_worker(struct work_struct *work)
2186 {
2187         struct gelic_wl_info *wl;
2188
2189         struct gelic_wl_scan_info *best_bss;
2190         int ret;
2191         unsigned long irqflag;
2192         u8 *essid;
2193         size_t essid_len;
2194
2195         wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2196
2197         mutex_lock(&wl->assoc_stat_lock);
2198
2199         if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2200                 goto out;
2201
2202         spin_lock_irqsave(&wl->lock, irqflag);
2203         if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2204                 pr_debug("%s: assoc ESSID configured %s\n", __func__,
2205                          wl->essid);
2206                 essid = wl->essid;
2207                 essid_len = wl->essid_len;
2208         } else {
2209                 essid = NULL;
2210                 essid_len = 0;
2211         }
2212         spin_unlock_irqrestore(&wl->lock, irqflag);
2213
2214         ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2215         if (ret == -ERESTARTSYS) {
2216                 pr_debug("%s: scan start failed association\n", __func__);
2217                 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2218                 goto out;
2219         } else if (ret) {
2220                 pr_info("%s: scan prerequisite failed\n", __func__);
2221                 goto out;
2222         }
2223
2224         /*
2225          * Wait for bss scan completion
2226          * If we have scan list already, gelic_wl_start_scan()
2227          * returns OK and raises the complete.  Thus,
2228          * it's ok to wait unconditionally here
2229          */
2230         wait_for_completion(&wl->scan_done);
2231
2232         pr_debug("%s: scan done\n", __func__);
2233         mutex_lock(&wl->scan_lock);
2234         if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2235                 gelic_wl_send_iwap_event(wl, NULL);
2236                 pr_info("%s: no scan list. association failed\n", __func__);
2237                 goto scan_lock_out;
2238         }
2239
2240         /* find best matching bss */
2241         best_bss = gelic_wl_find_best_bss(wl);
2242         if (!best_bss) {
2243                 gelic_wl_send_iwap_event(wl, NULL);
2244                 pr_info("%s: no bss matched. association failed\n", __func__);
2245                 goto scan_lock_out;
2246         }
2247
2248         /* ok, do association */
2249         ret = gelic_wl_associate_bss(wl, best_bss);
2250         if (ret)
2251                 pr_info("%s: association failed %d\n", __func__, ret);
2252 scan_lock_out:
2253         mutex_unlock(&wl->scan_lock);
2254 out:
2255         mutex_unlock(&wl->assoc_stat_lock);
2256 }
2257 /*
2258  * Interrupt handler
2259  * Called from the ethernet interrupt handler
2260  * Processes wireless specific virtual interrupts only
2261  */
2262 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2263 {
2264         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2265
2266         if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2267                 pr_debug("%s:cmd complete\n", __func__);
2268                 complete(&wl->cmd_done_intr);
2269         }
2270
2271         if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2272                 pr_debug("%s:event received\n", __func__);
2273                 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2274         }
2275 }
2276
2277 /*
2278  * driver helpers
2279  */
2280 #define IW_IOCTL(n) [(n) - SIOCSIWCOMMIT]
2281 static const iw_handler gelic_wl_wext_handler[] =
2282 {
2283         IW_IOCTL(SIOCGIWNAME)           = gelic_wl_get_name,
2284         IW_IOCTL(SIOCGIWRANGE)          = gelic_wl_get_range,
2285         IW_IOCTL(SIOCSIWSCAN)           = gelic_wl_set_scan,
2286         IW_IOCTL(SIOCGIWSCAN)           = gelic_wl_get_scan,
2287         IW_IOCTL(SIOCSIWAUTH)           = gelic_wl_set_auth,
2288         IW_IOCTL(SIOCGIWAUTH)           = gelic_wl_get_auth,
2289         IW_IOCTL(SIOCSIWESSID)          = gelic_wl_set_essid,
2290         IW_IOCTL(SIOCGIWESSID)          = gelic_wl_get_essid,
2291         IW_IOCTL(SIOCSIWENCODE)         = gelic_wl_set_encode,
2292         IW_IOCTL(SIOCGIWENCODE)         = gelic_wl_get_encode,
2293         IW_IOCTL(SIOCSIWAP)             = gelic_wl_set_ap,
2294         IW_IOCTL(SIOCGIWAP)             = gelic_wl_get_ap,
2295         IW_IOCTL(SIOCSIWENCODEEXT)      = gelic_wl_set_encodeext,
2296         IW_IOCTL(SIOCGIWENCODEEXT)      = gelic_wl_get_encodeext,
2297         IW_IOCTL(SIOCSIWMODE)           = gelic_wl_set_mode,
2298         IW_IOCTL(SIOCGIWMODE)           = gelic_wl_get_mode,
2299         IW_IOCTL(SIOCGIWNICKN)          = gelic_wl_get_nick,
2300 };
2301
2302 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2303         .num_standard           = ARRAY_SIZE(gelic_wl_wext_handler),
2304         .standard               = gelic_wl_wext_handler,
2305         .get_wireless_stats     = gelic_wl_get_wireless_stats,
2306 };
2307
2308 static struct net_device * __devinit gelic_wl_alloc(struct gelic_card *card)
2309 {
2310         struct net_device *netdev;
2311         struct gelic_port *port;
2312         struct gelic_wl_info *wl;
2313         unsigned int i;
2314
2315         pr_debug("%s:start\n", __func__);
2316         netdev = alloc_etherdev(sizeof(struct gelic_port) +
2317                                 sizeof(struct gelic_wl_info));
2318         pr_debug("%s: netdev =%p card=%p \np", __func__, netdev, card);
2319         if (!netdev)
2320                 return NULL;
2321
2322         strcpy(netdev->name, "wlan%d");
2323
2324         port = netdev_priv(netdev);
2325         port->netdev = netdev;
2326         port->card = card;
2327         port->type = GELIC_PORT_WIRELESS;
2328
2329         wl = port_wl(port);
2330         pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2331
2332         /* allocate scan list */
2333         wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2334                                GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2335
2336         if (!wl->networks)
2337                 goto fail_bss;
2338
2339         wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2340         if (!wl->eurus_cmd_queue)
2341                 goto fail_cmd_workqueue;
2342
2343         wl->event_queue = create_singlethread_workqueue("gelic_event");
2344         if (!wl->event_queue)
2345                 goto fail_event_workqueue;
2346
2347         INIT_LIST_HEAD(&wl->network_free_list);
2348         INIT_LIST_HEAD(&wl->network_list);
2349         for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2350                 list_add_tail(&wl->networks[i].list,
2351                               &wl->network_free_list);
2352         init_completion(&wl->cmd_done_intr);
2353
2354         INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2355         INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2356         mutex_init(&wl->scan_lock);
2357         mutex_init(&wl->assoc_stat_lock);
2358
2359         init_completion(&wl->scan_done);
2360         /* for the case that no scan request is issued and stop() is called */
2361         complete(&wl->scan_done);
2362
2363         spin_lock_init(&wl->lock);
2364
2365         wl->scan_age = 5*HZ; /* FIXME */
2366
2367         /* buffer for receiving scanned list etc */
2368         BUILD_BUG_ON(PAGE_SIZE <
2369                      sizeof(struct gelic_eurus_scan_info) *
2370                      GELIC_EURUS_MAX_SCAN);
2371         pr_debug("%s:end\n", __func__);
2372         return netdev;
2373
2374 fail_event_workqueue:
2375         destroy_workqueue(wl->eurus_cmd_queue);
2376 fail_cmd_workqueue:
2377         kfree(wl->networks);
2378 fail_bss:
2379         free_netdev(netdev);
2380         pr_debug("%s:end error\n", __func__);
2381         return NULL;
2382
2383 }
2384
2385 static void gelic_wl_free(struct gelic_wl_info *wl)
2386 {
2387         struct gelic_wl_scan_info *scan_info;
2388         unsigned int i;
2389
2390         pr_debug("%s: <-\n", __func__);
2391
2392         pr_debug("%s: destroy queues\n", __func__);
2393         destroy_workqueue(wl->eurus_cmd_queue);
2394         destroy_workqueue(wl->event_queue);
2395
2396         scan_info = wl->networks;
2397         for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2398                 kfree(scan_info->hwinfo);
2399         kfree(wl->networks);
2400
2401         free_netdev(port_to_netdev(wl_port(wl)));
2402
2403         pr_debug("%s: ->\n", __func__);
2404 }
2405
2406 static int gelic_wl_try_associate(struct net_device *netdev)
2407 {
2408         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2409         int ret = -1;
2410         unsigned int i;
2411
2412         pr_debug("%s: <-\n", __func__);
2413
2414         /* check constraits for start association */
2415         /* for no access restriction AP */
2416         if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2417                 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2418                              &wl->stat))
2419                         goto do_associate;
2420                 else {
2421                         pr_debug("%s: no wep, not configured\n", __func__);
2422                         return ret;
2423                 }
2424         }
2425
2426         /* for WEP, one of four keys should be set */
2427         if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2428                 /* one of keys set */
2429                 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2430                         if (test_bit(i, &wl->key_enabled))
2431                             goto do_associate;
2432                 }
2433                 pr_debug("%s: WEP, but no key specified\n", __func__);
2434                 return ret;
2435         }
2436
2437         /* for WPA[2], psk should be set */
2438         if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2439             (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2440                 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2441                              &wl->stat))
2442                         goto do_associate;
2443                 else {
2444                         pr_debug("%s: AES/TKIP, but PSK not configured\n",
2445                                  __func__);
2446                         return ret;
2447                 }
2448         }
2449
2450 do_associate:
2451         ret = schedule_delayed_work(&wl->assoc_work, 0);
2452         pr_debug("%s: start association work %d\n", __func__, ret);
2453         return ret;
2454 }
2455
2456 /*
2457  * netdev handlers
2458  */
2459 static int gelic_wl_open(struct net_device *netdev)
2460 {
2461         struct gelic_card *card = netdev_card(netdev);
2462
2463         pr_debug("%s:->%p\n", __func__, netdev);
2464
2465         gelic_card_up(card);
2466
2467         /* try to associate */
2468         gelic_wl_try_associate(netdev);
2469
2470         netif_start_queue(netdev);
2471
2472         pr_debug("%s:<-\n", __func__);
2473         return 0;
2474 }
2475
2476 /*
2477  * reset state machine
2478  */
2479 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2480 {
2481         struct gelic_wl_scan_info *target;
2482         struct gelic_wl_scan_info *tmp;
2483
2484         /* empty scan list */
2485         list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2486                 list_move_tail(&target->list, &wl->network_free_list);
2487         }
2488         wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2489
2490         /* clear configuration */
2491         wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2492         wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2493         wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2494         wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2495
2496         wl->key_enabled = 0;
2497         wl->current_key = 0;
2498
2499         wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2500         wl->psk_len = 0;
2501
2502         wl->essid_len = 0;
2503         memset(wl->essid, 0, sizeof(wl->essid));
2504         memset(wl->bssid, 0, sizeof(wl->bssid));
2505         memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2506
2507         wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2508
2509         memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2510         /* all status bit clear */
2511         wl->stat = 0;
2512         return 0;
2513 }
2514
2515 /*
2516  * Tell eurus to terminate association
2517  */
2518 static void gelic_wl_disconnect(struct net_device *netdev)
2519 {
2520         struct gelic_port *port = netdev_priv(netdev);
2521         struct gelic_wl_info *wl = port_wl(port);
2522         struct gelic_eurus_cmd *cmd;
2523
2524         /*
2525          * If scann process is running on chip,
2526          * further requests will be rejected
2527          */
2528         if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2529                 wait_for_completion_timeout(&wl->scan_done, HZ);
2530
2531         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2532         kfree(cmd);
2533         gelic_wl_send_iwap_event(wl, NULL);
2534 };
2535
2536 static int gelic_wl_stop(struct net_device *netdev)
2537 {
2538         struct gelic_port *port = netdev_priv(netdev);
2539         struct gelic_wl_info *wl = port_wl(port);
2540         struct gelic_card *card = netdev_card(netdev);
2541
2542         pr_debug("%s:<-\n", __func__);
2543
2544         /*
2545          * Cancel pending association work.
2546          * event work can run after netdev down
2547          */
2548         cancel_delayed_work(&wl->assoc_work);
2549
2550         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2551                 gelic_wl_disconnect(netdev);
2552
2553         /* reset our state machine */
2554         gelic_wl_reset_state(wl);
2555
2556         netif_stop_queue(netdev);
2557
2558         gelic_card_down(card);
2559
2560         pr_debug("%s:->\n", __func__);
2561         return 0;
2562 }
2563
2564 /* -- */
2565
2566 static const struct net_device_ops gelic_wl_netdevice_ops = {
2567         .ndo_open = gelic_wl_open,
2568         .ndo_stop = gelic_wl_stop,
2569         .ndo_start_xmit = gelic_net_xmit,
2570         .ndo_set_multicast_list = gelic_net_set_multi,
2571         .ndo_change_mtu = gelic_net_change_mtu,
2572         .ndo_tx_timeout = gelic_net_tx_timeout,
2573         .ndo_set_mac_address = eth_mac_addr,
2574         .ndo_validate_addr = eth_validate_addr,
2575 #ifdef CONFIG_NET_POLL_CONTROLLER
2576         .ndo_poll_controller = gelic_net_poll_controller,
2577 #endif
2578 };
2579
2580 static const struct ethtool_ops gelic_wl_ethtool_ops = {
2581         .get_drvinfo    = gelic_net_get_drvinfo,
2582         .get_link       = gelic_wl_get_link,
2583         .get_tx_csum    = ethtool_op_get_tx_csum,
2584         .set_tx_csum    = ethtool_op_set_tx_csum,
2585         .get_rx_csum    = gelic_net_get_rx_csum,
2586         .set_rx_csum    = gelic_net_set_rx_csum,
2587 };
2588
2589 static void __devinit gelic_wl_setup_netdev_ops(struct net_device *netdev)
2590 {
2591         struct gelic_wl_info *wl;
2592         wl = port_wl(netdev_priv(netdev));
2593         BUG_ON(!wl);
2594         netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2595
2596         netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2597         netdev->netdev_ops = &gelic_wl_netdevice_ops;
2598         netdev->wireless_data = &wl->wireless_data;
2599         netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2600 }
2601
2602 /*
2603  * driver probe/remove
2604  */
2605 int __devinit gelic_wl_driver_probe(struct gelic_card *card)
2606 {
2607         int ret;
2608         struct net_device *netdev;
2609
2610         pr_debug("%s:start\n", __func__);
2611
2612         if (ps3_compare_firmware_version(1, 6, 0) < 0)
2613                 return 0;
2614         if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2615                 return 0;
2616
2617         /* alloc netdevice for wireless */
2618         netdev = gelic_wl_alloc(card);
2619         if (!netdev)
2620                 return -ENOMEM;
2621
2622         /* setup net_device structure */
2623         SET_NETDEV_DEV(netdev, &card->dev->core);
2624         gelic_wl_setup_netdev_ops(netdev);
2625
2626         /* setup some of net_device and register it */
2627         ret = gelic_net_setup_netdev(netdev, card);
2628         if (ret)
2629                 goto fail_setup;
2630         card->netdev[GELIC_PORT_WIRELESS] = netdev;
2631
2632         /* add enable wireless interrupt */
2633         card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2634                 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2635         /* to allow wireless commands while both interfaces are down */
2636         gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2637                                 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2638         pr_debug("%s:end\n", __func__);
2639         return 0;
2640
2641 fail_setup:
2642         gelic_wl_free(port_wl(netdev_port(netdev)));
2643
2644         return ret;
2645 }
2646
2647 int gelic_wl_driver_remove(struct gelic_card *card)
2648 {
2649         struct gelic_wl_info *wl;
2650         struct net_device *netdev;
2651
2652         pr_debug("%s:start\n", __func__);
2653
2654         if (ps3_compare_firmware_version(1, 6, 0) < 0)
2655                 return 0;
2656         if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2657                 return 0;
2658
2659         netdev = card->netdev[GELIC_PORT_WIRELESS];
2660         wl = port_wl(netdev_priv(netdev));
2661
2662         /* if the interface was not up, but associated */
2663         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2664                 gelic_wl_disconnect(netdev);
2665
2666         complete(&wl->cmd_done_intr);
2667
2668         /* cancel all work queue */
2669         cancel_delayed_work(&wl->assoc_work);
2670         cancel_delayed_work(&wl->event_work);
2671         flush_workqueue(wl->eurus_cmd_queue);
2672         flush_workqueue(wl->event_queue);
2673
2674         unregister_netdev(netdev);
2675
2676         /* disable wireless interrupt */
2677         pr_debug("%s: disable intr\n", __func__);
2678         card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2679                             GELIC_CARD_WLAN_COMMAND_COMPLETED);
2680         /* free bss list, netdev*/
2681         gelic_wl_free(wl);
2682         pr_debug("%s:end\n", __func__);
2683         return 0;
2684 }