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 #include <linux/slab.h>
  25
  26 #include <linux/etherdevice.h>
  27 #include <linux/ethtool.h>
  28 #include <linux/if_vlan.h>
  29
  30 #include <linux/in.h>
  31 #include <linux/ip.h>
  32 #include <linux/tcp.h>
  33 #include <linux/wireless.h>
  34 #include <linux/ieee80211.h>
  35 #include <linux/if_arp.h>
  36 #include <linux/ctype.h>
  37 #include <linux/string.h>
  38 #include <net/iw_handler.h>
  39
  40 #include <linux/dma-mapping.h>
  41 #include <net/checksum.h>
  42 #include <asm/firmware.h>
  43 #include <asm/ps3.h>
  44 #include <asm/lv1call.h>
  45
  46 #include "ps3_gelic_net.h"
  47 #include "ps3_gelic_wireless.h"
  48
  49
  50 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
  51                                u8 *essid, size_t essid_len);
  52 static int gelic_wl_try_associate(struct net_device *netdev);
  53
  54 /*
  55  * tables
  56  */
  57
  58 /* 802.11b/g channel to freq in MHz */
  59 static const int channel_freq[] = {
  60         2412, 2417, 2422, 2427, 2432,
  61         2437, 2442, 2447, 2452, 2457,
  62         2462, 2467, 2472, 2484
  63 };
  64 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
  65
  66 /* in bps */
  67 static const int bitrate_list[] = {
  68           1000000,
  69           2000000,
  70           5500000,
  71          11000000,
  72           6000000,
  73           9000000,
  74          12000000,
  75          18000000,
  76          24000000,
  77          36000000,
  78          48000000,
  79          54000000
  80 };
  81 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
  82
  83 /*
  84  * wpa2 support requires the hypervisor version 2.0 or later
  85  */
  86 static inline int wpa2_capable(void)
  87 {
  88         return 0 <= ps3_compare_firmware_version(2, 0, 0);
  89 }
  90
  91 static inline int precise_ie(void)
  92 {
  93         return 0 <= ps3_compare_firmware_version(2, 2, 0);
  94 }
  95 /*
  96  * post_eurus_cmd helpers
  97  */
  98 struct eurus_cmd_arg_info {
  99         int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
 100         int post_arg; /* command requires arg1, arg2 at GET_RESULT */
 101 };
 102
 103 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
 104         [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
 105         [GELIC_EURUS_CMD_SET_WEP_CFG]    = { .pre_arg = 1},
 106         [GELIC_EURUS_CMD_SET_WPA_CFG]    = { .pre_arg = 1},
 107         [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
 108         [GELIC_EURUS_CMD_GET_WEP_CFG]    = { .post_arg = 1},
 109         [GELIC_EURUS_CMD_GET_WPA_CFG]    = { .post_arg = 1},
 110         [GELIC_EURUS_CMD_GET_RSSI_CFG]   = { .post_arg = 1},
 111         [GELIC_EURUS_CMD_START_SCAN]     = { .pre_arg = 1},
 112         [GELIC_EURUS_CMD_GET_SCAN]       = { .post_arg = 1},
 113 };
 114
 115 #ifdef DEBUG
 116 static const char *cmdstr(enum gelic_eurus_command ix)
 117 {
 118         switch (ix) {
 119         case GELIC_EURUS_CMD_ASSOC:
 120                 return "ASSOC";
 121         case GELIC_EURUS_CMD_DISASSOC:
 122                 return "DISASSOC";
 123         case GELIC_EURUS_CMD_START_SCAN:
 124                 return "SCAN";
 125         case GELIC_EURUS_CMD_GET_SCAN:
 126                 return "GET SCAN";
 127         case GELIC_EURUS_CMD_SET_COMMON_CFG:
 128                 return "SET_COMMON_CFG";
 129         case GELIC_EURUS_CMD_GET_COMMON_CFG:
 130                 return "GET_COMMON_CFG";
 131         case GELIC_EURUS_CMD_SET_WEP_CFG:
 132                 return "SET_WEP_CFG";
 133         case GELIC_EURUS_CMD_GET_WEP_CFG:
 134                 return "GET_WEP_CFG";
 135         case GELIC_EURUS_CMD_SET_WPA_CFG:
 136                 return "SET_WPA_CFG";
 137         case GELIC_EURUS_CMD_GET_WPA_CFG:
 138                 return "GET_WPA_CFG";
 139         case GELIC_EURUS_CMD_GET_RSSI_CFG:
 140                 return "GET_RSSI";
 141         default:
 142                 break;
 143         }
 144         return "";
 145 };
 146 #else
 147 static inline const char *cmdstr(enum gelic_eurus_command ix)
 148 {
 149         return "";
 150 }
 151 #endif
 152
 153 /* synchronously do eurus commands */
 154 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
 155 {
 156         struct gelic_eurus_cmd *cmd;
 157         struct gelic_card *card;
 158         struct gelic_wl_info *wl;
 159
 160         u64 arg1, arg2;
 161
 162         pr_debug("%s: <-\n", __func__);
 163         cmd = container_of(work, struct gelic_eurus_cmd, work);
 164         BUG_ON(cmd_info[cmd->cmd].pre_arg &&
 165                cmd_info[cmd->cmd].post_arg);
 166         wl = cmd->wl;
 167         card = port_to_card(wl_port(wl));
 168
 169         if (cmd_info[cmd->cmd].pre_arg) {
 170                 arg1 = (cmd->buffer) ?
 171                         ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
 172                         0;
 173                 arg2 = cmd->buf_size;
 174         } else {
 175                 arg1 = 0;
 176                 arg2 = 0;
 177         }
 178         init_completion(&wl->cmd_done_intr);
 179         pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
 180         cmd->status = lv1_net_control(bus_id(card), dev_id(card),
 181                                       GELIC_LV1_POST_WLAN_CMD,
 182                                       cmd->cmd, arg1, arg2,
 183                                       &cmd->tag, &cmd->size);
 184         if (cmd->status) {
 185                 complete(&cmd->done);
 186                 pr_info("%s: cmd issue failed\n", __func__);
 187                 return;
 188         }
 189
 190         wait_for_completion(&wl->cmd_done_intr);
 191
 192         if (cmd_info[cmd->cmd].post_arg) {
 193                 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
 194                 arg2 = cmd->buf_size;
 195         } else {
 196                 arg1 = 0;
 197                 arg2 = 0;
 198         }
 199
 200         cmd->status = lv1_net_control(bus_id(card), dev_id(card),
 201                                       GELIC_LV1_GET_WLAN_CMD_RESULT,
 202                                       cmd->tag, arg1, arg2,
 203                                       &cmd->cmd_status, &cmd->size);
 204 #ifdef DEBUG
 205         if (cmd->status || cmd->cmd_status) {
 206         pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
 207                  cmd->tag, arg1, arg2);
 208         pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
 209                  __func__, cmd->status, cmd->cmd_status, cmd->size);
 210         }
 211 #endif
 212         complete(&cmd->done);
 213         pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
 214 }
 215
 216 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
 217                                                     unsigned int eurus_cmd,
 218                                                     void *buffer,
 219                                                     unsigned int buf_size)
 220 {
 221         struct gelic_eurus_cmd *cmd;
 222
 223         /* allocate cmd */
 224         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 225         if (!cmd)
 226                 return NULL;
 227
 228         /* initialize members */
 229         cmd->cmd = eurus_cmd;
 230         cmd->buffer = buffer;
 231         cmd->buf_size = buf_size;
 232         cmd->wl = wl;
 233         INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
 234         init_completion(&cmd->done);
 235         queue_work(wl->eurus_cmd_queue, &cmd->work);
 236
 237         /* wait for command completion */
 238         wait_for_completion(&cmd->done);
 239
 240         return cmd;
 241 }
 242
 243 static u32 gelic_wl_get_link(struct net_device *netdev)
 244 {
 245         struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 246         u32 ret;
 247
 248         pr_debug("%s: <-\n", __func__);
 249         mutex_lock(&wl->assoc_stat_lock);
 250         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
 251                 ret = 1;
 252         else
 253                 ret = 0;
 254         mutex_unlock(&wl->assoc_stat_lock);
 255         pr_debug("%s: ->\n", __func__);
 256         return ret;
 257 }
 258
 259 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
 260 {
 261         union iwreq_data data;
 262
 263         memset(&data, 0, sizeof(data));
 264         if (bssid)
 265                 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
 266         data.ap_addr.sa_family = ARPHRD_ETHER;
 267         wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
 268                             &data, NULL);
 269 }
 270
 271 /*
 272  * wireless extension handlers and helpers
 273  */
 274
 275 /* SIOGIWNAME */
 276 static int gelic_wl_get_name(struct net_device *dev,
 277                              struct iw_request_info *info,
 278                              union iwreq_data *iwreq, char *extra)
 279 {
 280         strcpy(iwreq->name, "IEEE 802.11bg");
 281         return 0;
 282 }
 283
 284 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
 285 {
 286         struct gelic_card *card = port_to_card(wl_port(wl));
 287         u64 ch_info_raw, tmp;
 288         int status;
 289
 290         if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
 291                 status = lv1_net_control(bus_id(card), dev_id(card),
 292                                          GELIC_LV1_GET_CHANNEL, 0, 0, 0,
 293                                          &ch_info_raw,
 294                                          &tmp);
 295                 /* some fw versions may return error */
 296                 if (status) {
 297                         if (status != LV1_NO_ENTRY)
 298                                 pr_info("%s: available ch unknown\n", __func__);
 299                         wl->ch_info = 0x07ff;/* 11 ch */
 300                 } else
 301                         /* 16 bits of MSB has available channels */
 302                         wl->ch_info = ch_info_raw >> 48;
 303         }
 304 }
 305
 306 /* SIOGIWRANGE */
 307 static int gelic_wl_get_range(struct net_device *netdev,
 308                               struct iw_request_info *info,
 309                               union iwreq_data *iwreq, char *extra)
 310 {
 311         struct iw_point *point = &iwreq->data;
 312         struct iw_range *range = (struct iw_range *)extra;
 313         struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 314         unsigned int i, chs;
 315
 316         pr_debug("%s: <-\n", __func__);
 317         point->length = sizeof(struct iw_range);
 318         memset(range, 0, sizeof(struct iw_range));
 319
 320         range->we_version_compiled = WIRELESS_EXT;
 321         range->we_version_source = 22;
 322
 323         /* available channels and frequencies */
 324         gelic_wl_get_ch_info(wl);
 325
 326         for (i = 0, chs = 0;
 327              i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
 328                 if (wl->ch_info & (1 << i)) {
 329                         range->freq[chs].i = i + 1;
 330                         range->freq[chs].m = channel_freq[i];
 331                         range->freq[chs].e = 6;
 332                         chs++;
 333                 }
 334         range->num_frequency = chs;
 335         range->old_num_frequency = chs;
 336         range->num_channels = chs;
 337         range->old_num_channels = chs;
 338
 339         /* bitrates */
 340         for (i = 0; i < NUM_BITRATES; i++)
 341                 range->bitrate[i] = bitrate_list[i];
 342         range->num_bitrates = i;
 343
 344         /* signal levels */
 345         range->max_qual.qual = 100; /* relative value */
 346         range->max_qual.level = 100;
 347         range->avg_qual.qual = 50;
 348         range->avg_qual.level = 50;
 349         range->sensitivity = 0;
 350
 351         /* Event capability */
 352         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 353         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 354         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 355
 356         /* encryption capability */
 357         range->enc_capa = IW_ENC_CAPA_WPA |
 358                 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
 359                 IW_ENC_CAPA_4WAY_HANDSHAKE;
 360         if (wpa2_capable())
 361                 range->enc_capa |= IW_ENC_CAPA_WPA2;
 362         range->encoding_size[0] = 5;    /* 40bit WEP */
 363         range->encoding_size[1] = 13;   /* 104bit WEP */
 364         range->encoding_size[2] = 32;   /* WPA-PSK */
 365         range->num_encoding_sizes = 3;
 366         range->max_encoding_tokens = GELIC_WEP_KEYS;
 367
 368         /* scan capability */
 369         range->scan_capa = IW_SCAN_CAPA_ESSID;
 370
 371         pr_debug("%s: ->\n", __func__);
 372         return 0;
 373
 374 }
 375
 376 /* SIOC{G,S}IWSCAN */
 377 static int gelic_wl_set_scan(struct net_device *netdev,
 378                            struct iw_request_info *info,
 379                            union iwreq_data *wrqu, char *extra)
 380 {
 381         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 382         struct iw_scan_req *req;
 383         u8 *essid = NULL;
 384         size_t essid_len = 0;
 385
 386         if (wrqu->data.length == sizeof(struct iw_scan_req) &&
 387             wrqu->data.flags & IW_SCAN_THIS_ESSID) {
 388                 req = (struct iw_scan_req*)extra;
 389                 essid = req->essid;
 390                 essid_len = req->essid_len;
 391                 pr_debug("%s: ESSID scan =%s\n", __func__, essid);
 392         }
 393         return gelic_wl_start_scan(wl, 1, essid, essid_len);
 394 }
 395
 396 #define OUI_LEN 3
 397 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
 398 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
 399
 400 /*
 401  * synthesize WPA/RSN IE data
 402  * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
 403  * for the format
 404  */
 405 static size_t gelic_wl_synthesize_ie(u8 *buf,
 406                                      struct gelic_eurus_scan_info *scan)
 407 {
 408
 409         const u8 *oui_header;
 410         u8 *start = buf;
 411         int rsn;
 412         int ccmp;
 413
 414         pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
 415         switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
 416         case GELIC_EURUS_SCAN_SEC_WPA:
 417                 rsn = 0;
 418                 break;
 419         case GELIC_EURUS_SCAN_SEC_WPA2:
 420                 rsn = 1;
 421                 break;
 422         default:
 423                 /* WEP or none.  No IE returned */
 424                 return 0;
 425         }
 426
 427         switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
 428         case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
 429                 ccmp = 0;
 430                 break;
 431         case GELIC_EURUS_SCAN_SEC_WPA_AES:
 432                 ccmp = 1;
 433                 break;
 434         default:
 435                 if (rsn) {
 436                         ccmp = 1;
 437                         pr_info("%s: no cipher info. defaulted to CCMP\n",
 438                                 __func__);
 439                 } else {
 440                         ccmp = 0;
 441                         pr_info("%s: no cipher info. defaulted to TKIP\n",
 442                                 __func__);
 443                 }
 444         }
 445
 446         if (rsn)
 447                 oui_header = rsn_oui;
 448         else
 449                 oui_header = wpa_oui;
 450
 451         /* element id */
 452         if (rsn)
 453                 *buf++ = WLAN_EID_RSN;
 454         else
 455                 *buf++ = WLAN_EID_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 information in other method prior to
 818                          * the association.
 819                          */
 820                         if (!precise_ie())
 821                                 pr_info("%s: WPA2 may not work\n", __func__);
 822                         if (wpa2_capable()) {
 823                                 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
 824                                 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 825                                 wl->pairwise_cipher_method =
 826                                         GELIC_WL_CIPHER_AES;
 827                                 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 828                         } else
 829                                 ret = -EINVAL;
 830                 }
 831                 break;
 832
 833         case IW_AUTH_CIPHER_PAIRWISE:
 834                 if (param->value &
 835                     (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 836                         pr_debug("%s: WEP selected\n", __func__);
 837                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 838                 }
 839                 if (param->value & IW_AUTH_CIPHER_TKIP) {
 840                         pr_debug("%s: TKIP selected\n", __func__);
 841                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 842                 }
 843                 if (param->value & IW_AUTH_CIPHER_CCMP) {
 844                         pr_debug("%s: CCMP selected\n", __func__);
 845                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
 846                 }
 847                 if (param->value & IW_AUTH_CIPHER_NONE) {
 848                         pr_debug("%s: no auth selected\n", __func__);
 849                         wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
 850                 }
 851                 break;
 852         case IW_AUTH_CIPHER_GROUP:
 853                 if (param->value &
 854                     (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 855                         pr_debug("%s: WEP selected\n", __func__);
 856                         wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 857                 }
 858                 if (param->value & IW_AUTH_CIPHER_TKIP) {
 859                         pr_debug("%s: TKIP selected\n", __func__);
 860                         wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 861                 }
 862                 if (param->value & IW_AUTH_CIPHER_CCMP) {
 863                         pr_debug("%s: CCMP selected\n", __func__);
 864                         wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 865                 }
 866                 if (param->value & IW_AUTH_CIPHER_NONE) {
 867                         pr_debug("%s: no auth selected\n", __func__);
 868                         wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
 869                 }
 870                 break;
 871         case IW_AUTH_80211_AUTH_ALG:
 872                 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
 873                         pr_debug("%s: shared key specified\n", __func__);
 874                         wl->auth_method = GELIC_EURUS_AUTH_SHARED;
 875                 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
 876                         pr_debug("%s: open system specified\n", __func__);
 877                         wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 878                 } else
 879                         ret = -EINVAL;
 880                 break;
 881
 882         case IW_AUTH_WPA_ENABLED:
 883                 if (param->value) {
 884                         pr_debug("%s: WPA enabled\n", __func__);
 885                         wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 886                 } else {
 887                         pr_debug("%s: WPA disabled\n", __func__);
 888                         wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 889                 }
 890                 break;
 891
 892         case IW_AUTH_KEY_MGMT:
 893                 if (param->value & IW_AUTH_KEY_MGMT_PSK)
 894                         break;
 895                 /* intentionally fall through */
 896         default:
 897                 ret = -EOPNOTSUPP;
 898                 break;
 899         }
 900
 901         if (!ret)
 902                 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 903
 904         spin_unlock_irqrestore(&wl->lock, irqflag);
 905         pr_debug("%s: -> %d\n", __func__, ret);
 906         return ret;
 907 }
 908
 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          * unless we are doing an ESSID scan
1468          */
1469         if ((!essid_len && !always_scan)
1470             && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1471                 pr_debug("%s: already has the list\n", __func__);
1472                 complete(&wl->scan_done);
1473                 goto out;
1474         }
1475
1476         /* ESSID scan ? */
1477         if (essid_len && essid) {
1478                 buf = (void *)__get_free_page(GFP_KERNEL);
1479                 if (!buf) {
1480                         ret = -ENOMEM;
1481                         goto out;
1482                 }
1483                 len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1484                 memset(buf, 0, len);
1485                 memcpy(buf, essid, essid_len);
1486                 pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1487         } else
1488                 len = 0;
1489
1490         /*
1491          * issue start scan request
1492          */
1493         wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1494         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1495                                    buf, len);
1496         if (!cmd || cmd->status || cmd->cmd_status) {
1497                 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1498                 complete(&wl->scan_done);
1499                 ret = -ENOMEM;
1500                 goto out;
1501         }
1502         kfree(cmd);
1503 out:
1504         free_page((unsigned long)buf);
1505         mutex_unlock(&wl->scan_lock);
1506         pr_debug("%s: ->\n", __func__);
1507         return ret;
1508 }
1509
1510 /*
1511  * retrieve scan result from the chip (hypervisor)
1512  * this function is invoked by schedule work.
1513  */
1514 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1515 {
1516         struct gelic_eurus_cmd *cmd = NULL;
1517         struct gelic_wl_scan_info *target, *tmp;
1518         struct gelic_wl_scan_info *oldest = NULL;
1519         struct gelic_eurus_scan_info *scan_info;
1520         unsigned int scan_info_size;
1521         union iwreq_data data;
1522         unsigned long this_time = jiffies;
1523         unsigned int data_len, i, found, r;
1524         void *buf;
1525
1526         pr_debug("%s:start\n", __func__);
1527         mutex_lock(&wl->scan_lock);
1528
1529         buf = (void *)__get_free_page(GFP_KERNEL);
1530         if (!buf) {
1531                 pr_info("%s: scan buffer alloc failed\n", __func__);
1532                 goto out;
1533         }
1534
1535         if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1536                 /*
1537                  * stop() may be called while scanning, ignore result
1538                  */
1539                 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1540                          __func__, wl->scan_stat);
1541                 goto out;
1542         }
1543
1544         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1545                                    buf, PAGE_SIZE);
1546         if (!cmd || cmd->status || cmd->cmd_status) {
1547                 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1548                 pr_info("%s:cmd failed\n", __func__);
1549                 kfree(cmd);
1550                 goto out;
1551         }
1552         data_len = cmd->size;
1553         pr_debug("%s: data_len = %d\n", __func__, data_len);
1554         kfree(cmd);
1555
1556         /* OK, bss list retrieved */
1557         wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1558
1559         /* mark all entries are old */
1560         list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1561                 target->valid = 0;
1562                 /* expire too old entries */
1563                 if (time_before(target->last_scanned + wl->scan_age,
1564                                 this_time)) {
1565                         kfree(target->hwinfo);
1566                         target->hwinfo = NULL;
1567                         list_move_tail(&target->list, &wl->network_free_list);
1568                 }
1569         }
1570
1571         /* put them in the network_list */
1572         for (i = 0, scan_info_size = 0, scan_info = buf;
1573              scan_info_size < data_len;
1574              i++, scan_info_size += be16_to_cpu(scan_info->size),
1575              scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1576                 pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1577                          be16_to_cpu(scan_info->size),
1578                          &scan_info->bssid[2], scan_info);
1579
1580                 /*
1581                  * The wireless firmware may return invalid channel 0 and/or
1582                  * invalid rate if the AP emits zero length SSID ie. As this
1583                  * scan information is useless, ignore it
1584                  */
1585                 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1586                         pr_debug("%s: invalid scan info\n", __func__);
1587                         continue;
1588                 }
1589
1590                 found = 0;
1591                 oldest = NULL;
1592                 list_for_each_entry(target, &wl->network_list, list) {
1593                         if (!compare_ether_addr(&target->hwinfo->bssid[2],
1594                                                 &scan_info->bssid[2])) {
1595                                 found = 1;
1596                                 pr_debug("%s: same BBS found scanned list\n",
1597                                          __func__);
1598                                 break;
1599                         }
1600                         if (!oldest ||
1601                             (target->last_scanned < oldest->last_scanned))
1602                                 oldest = target;
1603                 }
1604
1605                 if (!found) {
1606                         /* not found in the list */
1607                         if (list_empty(&wl->network_free_list)) {
1608                                 /* expire oldest */
1609                                 target = oldest;
1610                         } else {
1611                                 target = list_entry(wl->network_free_list.next,
1612                                                     struct gelic_wl_scan_info,
1613                                                     list);
1614                         }
1615                 }
1616
1617                 /* update the item */
1618                 target->last_scanned = this_time;
1619                 target->valid = 1;
1620                 target->eurus_index = i;
1621                 kfree(target->hwinfo);
1622                 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1623                                          GFP_KERNEL);
1624                 if (!target->hwinfo) {
1625                         pr_info("%s: kzalloc failed\n", __func__);
1626                         continue;
1627                 }
1628                 /* copy hw scan info */
1629                 memcpy(target->hwinfo, scan_info, scan_info->size);
1630                 target->essid_len = strnlen(scan_info->essid,
1631                                             sizeof(scan_info->essid));
1632                 target->rate_len = 0;
1633                 for (r = 0; r < 12; r++)
1634                         if (scan_info->rate[r])
1635                                 target->rate_len++;
1636                 if (8 < target->rate_len)
1637                         pr_info("%s: AP returns %d rates\n", __func__,
1638                                 target->rate_len);
1639                 target->rate_ext_len = 0;
1640                 for (r = 0; r < 16; r++)
1641                         if (scan_info->ext_rate[r])
1642                                 target->rate_ext_len++;
1643                 list_move_tail(&target->list, &wl->network_list);
1644         }
1645         memset(&data, 0, sizeof(data));
1646         wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1647                             NULL);
1648 out:
1649         free_page((unsigned long)buf);
1650         complete(&wl->scan_done);
1651         mutex_unlock(&wl->scan_lock);
1652         pr_debug("%s:end\n", __func__);
1653 }
1654
1655 /*
1656  * Select an appropriate bss from current scan list regarding
1657  * current settings from userspace.
1658  * The caller must hold wl->scan_lock,
1659  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1660  */
1661 static void update_best(struct gelic_wl_scan_info **best,
1662                         struct gelic_wl_scan_info *candid,
1663                         int *best_weight,
1664                         int *weight)
1665 {
1666         if (*best_weight < ++(*weight)) {
1667                 *best_weight = *weight;
1668                 *best = candid;
1669         }
1670 }
1671
1672 static
1673 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1674 {
1675         struct gelic_wl_scan_info *scan_info;
1676         struct gelic_wl_scan_info *best_bss;
1677         int weight, best_weight;
1678         u16 security;
1679
1680         pr_debug("%s: <-\n", __func__);
1681
1682         best_bss = NULL;
1683         best_weight = 0;
1684
1685         list_for_each_entry(scan_info, &wl->network_list, list) {
1686                 pr_debug("%s: station %p\n", __func__, scan_info);
1687
1688                 if (!scan_info->valid) {
1689                         pr_debug("%s: station invalid\n", __func__);
1690                         continue;
1691                 }
1692
1693                 /* If bss specified, check it only */
1694                 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1695                         if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1696                                                 wl->bssid)) {
1697                                 best_bss = scan_info;
1698                                 pr_debug("%s: bssid matched\n", __func__);
1699                                 break;
1700                         } else {
1701                                 pr_debug("%s: bssid unmached\n", __func__);
1702                                 continue;
1703                         }
1704                 }
1705
1706                 weight = 0;
1707
1708                 /* security */
1709                 security = be16_to_cpu(scan_info->hwinfo->security) &
1710                         GELIC_EURUS_SCAN_SEC_MASK;
1711                 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1712                         if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1713                                 update_best(&best_bss, scan_info,
1714                                             &best_weight, &weight);
1715                         else
1716                                 continue;
1717                 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1718                         if (security == GELIC_EURUS_SCAN_SEC_WPA)
1719                                 update_best(&best_bss, scan_info,
1720                                             &best_weight, &weight);
1721                         else
1722                                 continue;
1723                 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1724                            wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1725                         if (security == GELIC_EURUS_SCAN_SEC_WEP)
1726                                 update_best(&best_bss, scan_info,
1727                                             &best_weight, &weight);
1728                         else
1729                                 continue;
1730                 }
1731
1732                 /* If ESSID is set, check it */
1733                 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1734                         if ((scan_info->essid_len == wl->essid_len) &&
1735                             !strncmp(wl->essid,
1736                                      scan_info->hwinfo->essid,
1737                                      scan_info->essid_len))
1738                                 update_best(&best_bss, scan_info,
1739                                             &best_weight, &weight);
1740                         else
1741                                 continue;
1742                 }
1743         }
1744
1745 #ifdef DEBUG
1746         pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1747         if (best_bss) {
1748                 pr_debug("%s:addr=%pM\n", __func__,
1749                          &best_bss->hwinfo->bssid[2]);
1750         }
1751 #endif
1752         return best_bss;
1753 }
1754
1755 /*
1756  * Setup WEP configuration to the chip
1757  * The caller must hold wl->scan_lock,
1758  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1759  */
1760 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1761 {
1762         unsigned int i;
1763         struct gelic_eurus_wep_cfg *wep;
1764         struct gelic_eurus_cmd *cmd;
1765         int wep104 = 0;
1766         int have_key = 0;
1767         int ret = 0;
1768
1769         pr_debug("%s: <-\n", __func__);
1770         /* we can assume no one should uses the buffer */
1771         wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1772         if (!wep)
1773                 return -ENOMEM;
1774
1775         memset(wep, 0, sizeof(*wep));
1776
1777         if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1778                 pr_debug("%s: WEP mode\n", __func__);
1779                 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1780                         if (!test_bit(i, &wl->key_enabled))
1781                                 continue;
1782
1783                         pr_debug("%s: key#%d enabled\n", __func__, i);
1784                         have_key = 1;
1785                         if (wl->key_len[i] == 13)
1786                                 wep104 = 1;
1787                         else if (wl->key_len[i] != 5) {
1788                                 pr_info("%s: wrong wep key[%d]=%d\n",
1789                                         __func__, i, wl->key_len[i]);
1790                                 ret = -EINVAL;
1791                                 goto out;
1792                         }
1793                         memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1794                 }
1795
1796                 if (!have_key) {
1797                         pr_info("%s: all wep key disabled\n", __func__);
1798                         ret = -EINVAL;
1799                         goto out;
1800                 }
1801
1802                 if (wep104) {
1803                         pr_debug("%s: 104bit key\n", __func__);
1804                         wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1805                 } else {
1806                         pr_debug("%s: 40bit key\n", __func__);
1807                         wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1808                 }
1809         } else {
1810                 pr_debug("%s: NO encryption\n", __func__);
1811                 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1812         }
1813
1814         /* issue wep setup */
1815         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1816                                    wep, sizeof(*wep));
1817         if (!cmd)
1818                 ret = -ENOMEM;
1819         else if (cmd->status || cmd->cmd_status)
1820                 ret = -ENXIO;
1821
1822         kfree(cmd);
1823 out:
1824         free_page((unsigned long)wep);
1825         pr_debug("%s: ->\n", __func__);
1826         return ret;
1827 }
1828
1829 #ifdef DEBUG
1830 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1831 {
1832         switch (sec) {
1833         case GELIC_EURUS_WPA_SEC_NONE:
1834                 return "NONE";
1835                 break;
1836         case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1837                 return "WPA_TKIP_TKIP";
1838                 break;
1839         case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1840                 return "WPA_TKIP_AES";
1841                 break;
1842         case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1843                 return "WPA_AES_AES";
1844                 break;
1845         case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1846                 return "WPA2_TKIP_TKIP";
1847                 break;
1848         case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1849                 return "WPA2_TKIP_AES";
1850                 break;
1851         case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1852                 return "WPA2_AES_AES";
1853                 break;
1854         }
1855         return "";
1856 };
1857 #endif
1858
1859 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1860 {
1861         struct gelic_eurus_wpa_cfg *wpa;
1862         struct gelic_eurus_cmd *cmd;
1863         u16 security;
1864         int ret = 0;
1865
1866         pr_debug("%s: <-\n", __func__);
1867         /* we can assume no one should uses the buffer */
1868         wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1869         if (!wpa)
1870                 return -ENOMEM;
1871
1872         memset(wpa, 0, sizeof(*wpa));
1873
1874         if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1875                 pr_info("%s: PSK not configured yet\n", __func__);
1876
1877         /* copy key */
1878         memcpy(wpa->psk, wl->psk, wl->psk_len);
1879
1880         /* set security level */
1881         if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1882                 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1883                         security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1884                 } else {
1885                         if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1886                             precise_ie())
1887                                 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1888                         else
1889                                 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1890                 }
1891         } else {
1892                 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1893                         security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1894                 } else {
1895                         if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1896                             precise_ie())
1897                                 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1898                         else
1899                                 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1900                 }
1901         }
1902         wpa->security = cpu_to_be16(security);
1903
1904         /* PSK type */
1905         wpa->psk_type = cpu_to_be16(wl->psk_type);
1906 #ifdef DEBUG
1907         pr_debug("%s: sec=%s psktype=%s\n", __func__,
1908                  wpasecstr(wpa->security),
1909                  (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1910                  "BIN" : "passphrase");
1911 #if 0
1912         /*
1913          * don't enable here if you plan to submit
1914          * the debug log because this dumps your precious
1915          * passphrase/key.
1916          */
1917         pr_debug("%s: psk=%s\n", __func__,
1918                  (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1919                  "N/A" : wpa->psk);
1920 #endif
1921 #endif
1922         /* issue wpa setup */
1923         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1924                                    wpa, sizeof(*wpa));
1925         if (!cmd)
1926                 ret = -ENOMEM;
1927         else if (cmd->status || cmd->cmd_status)
1928                 ret = -ENXIO;
1929         kfree(cmd);
1930         free_page((unsigned long)wpa);
1931         pr_debug("%s: --> %d\n", __func__, ret);
1932         return ret;
1933 }
1934
1935 /*
1936  * Start association. caller must hold assoc_stat_lock
1937  */
1938 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1939                                   struct gelic_wl_scan_info *bss)
1940 {
1941         struct gelic_eurus_cmd *cmd;
1942         struct gelic_eurus_common_cfg *common;
1943         int ret = 0;
1944         unsigned long rc;
1945
1946         pr_debug("%s: <-\n", __func__);
1947
1948         /* do common config */
1949         common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1950         if (!common)
1951                 return -ENOMEM;
1952
1953         memset(common, 0, sizeof(*common));
1954         common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1955         common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1956
1957         common->scan_index = cpu_to_be16(bss->eurus_index);
1958         switch (wl->auth_method) {
1959         case GELIC_EURUS_AUTH_OPEN:
1960                 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1961                 break;
1962         case GELIC_EURUS_AUTH_SHARED:
1963                 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1964                 break;
1965         }
1966
1967 #ifdef DEBUG
1968         scan_list_dump(wl);
1969 #endif
1970         pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1971                  be16_to_cpu(common->scan_index),
1972                  be16_to_cpu(common->bss_type),
1973                  be16_to_cpu(common->auth_method));
1974
1975         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1976                                    common, sizeof(*common));
1977         if (!cmd || cmd->status || cmd->cmd_status) {
1978                 ret = -ENOMEM;
1979                 kfree(cmd);
1980                 goto out;
1981         }
1982         kfree(cmd);
1983
1984         /* WEP/WPA */
1985         switch (wl->wpa_level) {
1986         case GELIC_WL_WPA_LEVEL_NONE:
1987                 /* If WEP or no security, setup WEP config */
1988                 ret = gelic_wl_do_wep_setup(wl);
1989                 break;
1990         case GELIC_WL_WPA_LEVEL_WPA:
1991         case GELIC_WL_WPA_LEVEL_WPA2:
1992                 ret = gelic_wl_do_wpa_setup(wl);
1993                 break;
1994         }
1995
1996         if (ret) {
1997                 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1998                          ret);
1999                 ret = -EPERM;
2000                 gelic_wl_send_iwap_event(wl, NULL);
2001                 goto out;
2002         }
2003
2004         /* start association */
2005         init_completion(&wl->assoc_done);
2006         wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2007         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2008                                    NULL, 0);
2009         if (!cmd || cmd->status || cmd->cmd_status) {
2010                 pr_debug("%s: assoc request failed\n", __func__);
2011                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2012                 kfree(cmd);
2013                 ret = -ENOMEM;
2014                 gelic_wl_send_iwap_event(wl, NULL);
2015                 goto out;
2016         }
2017         kfree(cmd);
2018
2019         /* wait for connected event */
2020         rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2021
2022         if (!rc) {
2023                 /* timeouted.  Maybe key or cyrpt mode is wrong */
2024                 pr_info("%s: connect timeout\n", __func__);
2025                 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2026                                            NULL, 0);
2027                 kfree(cmd);
2028                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2029                 gelic_wl_send_iwap_event(wl, NULL);
2030                 ret = -ENXIO;
2031         } else {
2032                 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2033                 /* copy bssid */
2034                 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2035
2036                 /* send connect event */
2037                 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2038                 pr_info("%s: connected\n", __func__);
2039         }
2040 out:
2041         free_page((unsigned long)common);
2042         pr_debug("%s: ->\n", __func__);
2043         return ret;
2044 }
2045
2046 /*
2047  * connected event
2048  */
2049 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2050                                      u64 event)
2051 {
2052         u64 desired_event = 0;
2053
2054         switch (wl->wpa_level) {
2055         case GELIC_WL_WPA_LEVEL_NONE:
2056                 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2057                 break;
2058         case GELIC_WL_WPA_LEVEL_WPA:
2059         case GELIC_WL_WPA_LEVEL_WPA2:
2060                 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2061                 break;
2062         }
2063
2064         if (desired_event == event) {
2065                 pr_debug("%s: completed\n", __func__);
2066                 complete(&wl->assoc_done);
2067                 netif_carrier_on(port_to_netdev(wl_port(wl)));
2068         } else
2069                 pr_debug("%s: event %#llx under wpa\n",
2070                                  __func__, event);
2071 }
2072
2073 /*
2074  * disconnect event
2075  */
2076 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2077                                       u64 event)
2078 {
2079         struct gelic_eurus_cmd *cmd;
2080         int lock;
2081
2082         /*
2083          * If we fall here in the middle of association,
2084          * associate_bss() should be waiting for complation of
2085          * wl->assoc_done.
2086          * As it waits with timeout, just leave assoc_done
2087          * uncompleted, then it terminates with timeout
2088          */
2089         if (!mutex_trylock(&wl->assoc_stat_lock)) {
2090                 pr_debug("%s: already locked\n", __func__);
2091                 lock = 0;
2092         } else {
2093                 pr_debug("%s: obtain lock\n", __func__);
2094                 lock = 1;
2095         }
2096
2097         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2098         kfree(cmd);
2099
2100         /* send disconnected event to the supplicant */
2101         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2102                 gelic_wl_send_iwap_event(wl, NULL);
2103
2104         wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2105         netif_carrier_off(port_to_netdev(wl_port(wl)));
2106
2107         if (lock)
2108                 mutex_unlock(&wl->assoc_stat_lock);
2109 }
2110 /*
2111  * event worker
2112  */
2113 #ifdef DEBUG
2114 static const char *eventstr(enum gelic_lv1_wl_event event)
2115 {
2116         static char buf[32];
2117         char *ret;
2118         if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2119                 ret = "EURUS_READY";
2120         else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2121                 ret = "SCAN_COMPLETED";
2122         else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2123                 ret = "DEAUTH";
2124         else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2125                 ret = "BEACON_LOST";
2126         else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2127                 ret = "CONNECTED";
2128         else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2129                 ret = "WPA_CONNECTED";
2130         else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2131                 ret = "WPA_ERROR";
2132         else {
2133                 sprintf(buf, "Unknown(%#x)", event);
2134                 ret = buf;
2135         }
2136         return ret;
2137 }
2138 #else
2139 static const char *eventstr(enum gelic_lv1_wl_event event)
2140 {
2141         return NULL;
2142 }
2143 #endif
2144 static void gelic_wl_event_worker(struct work_struct *work)
2145 {
2146         struct gelic_wl_info *wl;
2147         struct gelic_port *port;
2148         u64 event, tmp;
2149         int status;
2150
2151         pr_debug("%s:start\n", __func__);
2152         wl = container_of(work, struct gelic_wl_info, event_work.work);
2153         port = wl_port(wl);
2154         while (1) {
2155                 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2156                                          GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2157                                          &event, &tmp);
2158                 if (status) {
2159                         if (status != LV1_NO_ENTRY)
2160                                 pr_debug("%s:wlan event failed %d\n",
2161                                          __func__, status);
2162                         /* got all events */
2163                         pr_debug("%s:end\n", __func__);
2164                         return;
2165                 }
2166                 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2167                 switch (event) {
2168                 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2169                         gelic_wl_scan_complete_event(wl);
2170                         break;
2171                 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2172                 case GELIC_LV1_WL_EVENT_DEAUTH:
2173                         gelic_wl_disconnect_event(wl, event);
2174                         break;
2175                 case GELIC_LV1_WL_EVENT_CONNECTED:
2176                 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2177                         gelic_wl_connected_event(wl, event);
2178                         break;
2179                 default:
2180                         break;
2181                 }
2182         } /* while */
2183 }
2184 /*
2185  * association worker
2186  */
2187 static void gelic_wl_assoc_worker(struct work_struct *work)
2188 {
2189         struct gelic_wl_info *wl;
2190
2191         struct gelic_wl_scan_info *best_bss;
2192         int ret;
2193         unsigned long irqflag;
2194         u8 *essid;
2195         size_t essid_len;
2196
2197         wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2198
2199         mutex_lock(&wl->assoc_stat_lock);
2200
2201         if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2202                 goto out;
2203
2204         spin_lock_irqsave(&wl->lock, irqflag);
2205         if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2206                 pr_debug("%s: assoc ESSID configured %s\n", __func__,
2207                          wl->essid);
2208                 essid = wl->essid;
2209                 essid_len = wl->essid_len;
2210         } else {
2211                 essid = NULL;
2212                 essid_len = 0;
2213         }
2214         spin_unlock_irqrestore(&wl->lock, irqflag);
2215
2216         ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2217         if (ret == -ERESTARTSYS) {
2218                 pr_debug("%s: scan start failed association\n", __func__);
2219                 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2220                 goto out;
2221         } else if (ret) {
2222                 pr_info("%s: scan prerequisite failed\n", __func__);
2223                 goto out;
2224         }
2225
2226         /*
2227          * Wait for bss scan completion
2228          * If we have scan list already, gelic_wl_start_scan()
2229          * returns OK and raises the complete.  Thus,
2230          * it's ok to wait unconditionally here
2231          */
2232         wait_for_completion(&wl->scan_done);
2233
2234         pr_debug("%s: scan done\n", __func__);
2235         mutex_lock(&wl->scan_lock);
2236         if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2237                 gelic_wl_send_iwap_event(wl, NULL);
2238                 pr_info("%s: no scan list. association failed\n", __func__);
2239                 goto scan_lock_out;
2240         }
2241
2242         /* find best matching bss */
2243         best_bss = gelic_wl_find_best_bss(wl);
2244         if (!best_bss) {
2245                 gelic_wl_send_iwap_event(wl, NULL);
2246                 pr_info("%s: no bss matched. association failed\n", __func__);
2247                 goto scan_lock_out;
2248         }
2249
2250         /* ok, do association */
2251         ret = gelic_wl_associate_bss(wl, best_bss);
2252         if (ret)
2253                 pr_info("%s: association failed %d\n", __func__, ret);
2254 scan_lock_out:
2255         mutex_unlock(&wl->scan_lock);
2256 out:
2257         mutex_unlock(&wl->assoc_stat_lock);
2258 }
2259 /*
2260  * Interrupt handler
2261  * Called from the ethernet interrupt handler
2262  * Processes wireless specific virtual interrupts only
2263  */
2264 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2265 {
2266         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2267
2268         if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2269                 pr_debug("%s:cmd complete\n", __func__);
2270                 complete(&wl->cmd_done_intr);
2271         }
2272
2273         if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2274                 pr_debug("%s:event received\n", __func__);
2275                 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2276         }
2277 }
2278
2279 /*
2280  * driver helpers
2281  */
2282 static const iw_handler gelic_wl_wext_handler[] =
2283 {
2284         IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2285         IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2286         IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2287         IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2288         IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2289         IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2290         IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2291         IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2292         IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2293         IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2294         IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2295         IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2296         IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2297         IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2298         IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2299         IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2300         IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2301 };
2302
2303 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2304         .num_standard           = ARRAY_SIZE(gelic_wl_wext_handler),
2305         .standard               = gelic_wl_wext_handler,
2306         .get_wireless_stats     = gelic_wl_get_wireless_stats,
2307 };
2308
2309 static struct net_device * __devinit gelic_wl_alloc(struct gelic_card *card)
2310 {
2311         struct net_device *netdev;
2312         struct gelic_port *port;
2313         struct gelic_wl_info *wl;
2314         unsigned int i;
2315
2316         pr_debug("%s:start\n", __func__);
2317         netdev = alloc_etherdev(sizeof(struct gelic_port) +
2318                                 sizeof(struct gelic_wl_info));
2319         pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2320         if (!netdev)
2321                 return NULL;
2322
2323         strcpy(netdev->name, "wlan%d");
2324
2325         port = netdev_priv(netdev);
2326         port->netdev = netdev;
2327         port->card = card;
2328         port->type = GELIC_PORT_WIRELESS;
2329
2330         wl = port_wl(port);
2331         pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2332
2333         /* allocate scan list */
2334         wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2335                                GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2336
2337         if (!wl->networks)
2338                 goto fail_bss;
2339
2340         wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2341         if (!wl->eurus_cmd_queue)
2342                 goto fail_cmd_workqueue;
2343
2344         wl->event_queue = create_singlethread_workqueue("gelic_event");
2345         if (!wl->event_queue)
2346                 goto fail_event_workqueue;
2347
2348         INIT_LIST_HEAD(&wl->network_free_list);
2349         INIT_LIST_HEAD(&wl->network_list);
2350         for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2351                 list_add_tail(&wl->networks[i].list,
2352                               &wl->network_free_list);
2353         init_completion(&wl->cmd_done_intr);
2354
2355         INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2356         INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2357         mutex_init(&wl->scan_lock);
2358         mutex_init(&wl->assoc_stat_lock);
2359
2360         init_completion(&wl->scan_done);
2361         /* for the case that no scan request is issued and stop() is called */
2362         complete(&wl->scan_done);
2363
2364         spin_lock_init(&wl->lock);
2365
2366         wl->scan_age = 5*HZ; /* FIXME */
2367
2368         /* buffer for receiving scanned list etc */
2369         BUILD_BUG_ON(PAGE_SIZE <
2370                      sizeof(struct gelic_eurus_scan_info) *
2371                      GELIC_EURUS_MAX_SCAN);
2372         pr_debug("%s:end\n", __func__);
2373         return netdev;
2374
2375 fail_event_workqueue:
2376         destroy_workqueue(wl->eurus_cmd_queue);
2377 fail_cmd_workqueue:
2378         kfree(wl->networks);
2379 fail_bss:
2380         free_netdev(netdev);
2381         pr_debug("%s:end error\n", __func__);
2382         return NULL;
2383
2384 }
2385
2386 static void gelic_wl_free(struct gelic_wl_info *wl)
2387 {
2388         struct gelic_wl_scan_info *scan_info;
2389         unsigned int i;
2390
2391         pr_debug("%s: <-\n", __func__);
2392
2393         pr_debug("%s: destroy queues\n", __func__);
2394         destroy_workqueue(wl->eurus_cmd_queue);
2395         destroy_workqueue(wl->event_queue);
2396
2397         scan_info = wl->networks;
2398         for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2399                 kfree(scan_info->hwinfo);
2400         kfree(wl->networks);
2401
2402         free_netdev(port_to_netdev(wl_port(wl)));
2403
2404         pr_debug("%s: ->\n", __func__);
2405 }
2406
2407 static int gelic_wl_try_associate(struct net_device *netdev)
2408 {
2409         struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2410         int ret = -1;
2411         unsigned int i;
2412
2413         pr_debug("%s: <-\n", __func__);
2414
2415         /* check constraits for start association */
2416         /* for no access restriction AP */
2417         if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2418                 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2419                              &wl->stat))
2420                         goto do_associate;
2421                 else {
2422                         pr_debug("%s: no wep, not configured\n", __func__);
2423                         return ret;
2424                 }
2425         }
2426
2427         /* for WEP, one of four keys should be set */
2428         if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2429                 /* one of keys set */
2430                 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2431                         if (test_bit(i, &wl->key_enabled))
2432                             goto do_associate;
2433                 }
2434                 pr_debug("%s: WEP, but no key specified\n", __func__);
2435                 return ret;
2436         }
2437
2438         /* for WPA[2], psk should be set */
2439         if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2440             (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2441                 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2442                              &wl->stat))
2443                         goto do_associate;
2444                 else {
2445                         pr_debug("%s: AES/TKIP, but PSK not configured\n",
2446                                  __func__);
2447                         return ret;
2448                 }
2449         }
2450
2451 do_associate:
2452         ret = schedule_delayed_work(&wl->assoc_work, 0);
2453         pr_debug("%s: start association work %d\n", __func__, ret);
2454         return ret;
2455 }
2456
2457 /*
2458  * netdev handlers
2459  */
2460 static int gelic_wl_open(struct net_device *netdev)
2461 {
2462         struct gelic_card *card = netdev_card(netdev);
2463
2464         pr_debug("%s:->%p\n", __func__, netdev);
2465
2466         gelic_card_up(card);
2467
2468         /* try to associate */
2469         gelic_wl_try_associate(netdev);
2470
2471         netif_start_queue(netdev);
2472
2473         pr_debug("%s:<-\n", __func__);
2474         return 0;
2475 }
2476
2477 /*
2478  * reset state machine
2479  */
2480 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2481 {
2482         struct gelic_wl_scan_info *target;
2483         struct gelic_wl_scan_info *tmp;
2484
2485         /* empty scan list */
2486         list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2487                 list_move_tail(&target->list, &wl->network_free_list);
2488         }
2489         wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2490
2491         /* clear configuration */
2492         wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2493         wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2494         wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2495         wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2496
2497         wl->key_enabled = 0;
2498         wl->current_key = 0;
2499
2500         wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2501         wl->psk_len = 0;
2502
2503         wl->essid_len = 0;
2504         memset(wl->essid, 0, sizeof(wl->essid));
2505         memset(wl->bssid, 0, sizeof(wl->bssid));
2506         memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2507
2508         wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2509
2510         memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2511         /* all status bit clear */
2512         wl->stat = 0;
2513         return 0;
2514 }
2515
2516 /*
2517  * Tell eurus to terminate association
2518  */
2519 static void gelic_wl_disconnect(struct net_device *netdev)
2520 {
2521         struct gelic_port *port = netdev_priv(netdev);
2522         struct gelic_wl_info *wl = port_wl(port);
2523         struct gelic_eurus_cmd *cmd;
2524
2525         /*
2526          * If scann process is running on chip,
2527          * further requests will be rejected
2528          */
2529         if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2530                 wait_for_completion_timeout(&wl->scan_done, HZ);
2531
2532         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2533         kfree(cmd);
2534         gelic_wl_send_iwap_event(wl, NULL);
2535 };
2536
2537 static int gelic_wl_stop(struct net_device *netdev)
2538 {
2539         struct gelic_port *port = netdev_priv(netdev);
2540         struct gelic_wl_info *wl = port_wl(port);
2541         struct gelic_card *card = netdev_card(netdev);
2542
2543         pr_debug("%s:<-\n", __func__);
2544
2545         /*
2546          * Cancel pending association work.
2547          * event work can run after netdev down
2548          */
2549         cancel_delayed_work(&wl->assoc_work);
2550
2551         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2552                 gelic_wl_disconnect(netdev);
2553
2554         /* reset our state machine */
2555         gelic_wl_reset_state(wl);
2556
2557         netif_stop_queue(netdev);
2558
2559         gelic_card_down(card);
2560
2561         pr_debug("%s:->\n", __func__);
2562         return 0;
2563 }
2564
2565 /* -- */
2566
2567 static const struct net_device_ops gelic_wl_netdevice_ops = {
2568         .ndo_open = gelic_wl_open,
2569         .ndo_stop = gelic_wl_stop,
2570         .ndo_start_xmit = gelic_net_xmit,
2571         .ndo_set_multicast_list = gelic_net_set_multi,
2572         .ndo_change_mtu = gelic_net_change_mtu,
2573         .ndo_tx_timeout = gelic_net_tx_timeout,
2574         .ndo_set_mac_address = eth_mac_addr,
2575         .ndo_validate_addr = eth_validate_addr,
2576 #ifdef CONFIG_NET_POLL_CONTROLLER
2577         .ndo_poll_controller = gelic_net_poll_controller,
2578 #endif
2579 };
2580
2581 static const struct ethtool_ops gelic_wl_ethtool_ops = {
2582         .get_drvinfo    = gelic_net_get_drvinfo,
2583         .get_link       = gelic_wl_get_link,
2584 };
2585
2586 static void __devinit gelic_wl_setup_netdev_ops(struct net_device *netdev)
2587 {
2588         struct gelic_wl_info *wl;
2589         wl = port_wl(netdev_priv(netdev));
2590         BUG_ON(!wl);
2591         netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2592
2593         netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2594         netdev->netdev_ops = &gelic_wl_netdevice_ops;
2595         netdev->wireless_data = &wl->wireless_data;
2596         netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2597 }
2598
2599 /*
2600  * driver probe/remove
2601  */
2602 int __devinit gelic_wl_driver_probe(struct gelic_card *card)
2603 {
2604         int ret;
2605         struct net_device *netdev;
2606
2607         pr_debug("%s:start\n", __func__);
2608
2609         if (ps3_compare_firmware_version(1, 6, 0) < 0)
2610                 return 0;
2611         if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2612                 return 0;
2613
2614         /* alloc netdevice for wireless */
2615         netdev = gelic_wl_alloc(card);
2616         if (!netdev)
2617                 return -ENOMEM;
2618
2619         /* setup net_device structure */
2620         SET_NETDEV_DEV(netdev, &card->dev->core);
2621         gelic_wl_setup_netdev_ops(netdev);
2622
2623         /* setup some of net_device and register it */
2624         ret = gelic_net_setup_netdev(netdev, card);
2625         if (ret)
2626                 goto fail_setup;
2627         card->netdev[GELIC_PORT_WIRELESS] = netdev;
2628
2629         /* add enable wireless interrupt */
2630         card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2631                 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2632         /* to allow wireless commands while both interfaces are down */
2633         gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2634                                 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2635         pr_debug("%s:end\n", __func__);
2636         return 0;
2637
2638 fail_setup:
2639         gelic_wl_free(port_wl(netdev_port(netdev)));
2640
2641         return ret;
2642 }
2643
2644 int gelic_wl_driver_remove(struct gelic_card *card)
2645 {
2646         struct gelic_wl_info *wl;
2647         struct net_device *netdev;
2648
2649         pr_debug("%s:start\n", __func__);
2650
2651         if (ps3_compare_firmware_version(1, 6, 0) < 0)
2652                 return 0;
2653         if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2654                 return 0;
2655
2656         netdev = card->netdev[GELIC_PORT_WIRELESS];
2657         wl = port_wl(netdev_priv(netdev));
2658
2659         /* if the interface was not up, but associated */
2660         if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2661                 gelic_wl_disconnect(netdev);
2662
2663         complete(&wl->cmd_done_intr);
2664
2665         /* cancel all work queue */
2666         cancel_delayed_work(&wl->assoc_work);
2667         cancel_delayed_work(&wl->event_work);
2668         flush_workqueue(wl->eurus_cmd_queue);
2669         flush_workqueue(wl->event_queue);
2670
2671         unregister_netdev(netdev);
2672
2673         /* disable wireless interrupt */
2674         pr_debug("%s: disable intr\n", __func__);
2675         card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2676                             GELIC_CARD_WLAN_COMMAND_COMPLETED);
2677         /* free bss list, netdev*/
2678         gelic_wl_free(wl);
2679         pr_debug("%s:end\n", __func__);
2680         return 0;
2681 }