linux/drivers/net/ps3_gelic_wireless.c
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   1/*
   2 *  PS3 gelic network driver.
   3 *
   4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
   5 * Copyright 2007 Sony Corporation
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2
   9 * as published by the Free Software Foundation.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20#undef DEBUG
  21
  22#include <linux/kernel.h>
  23#include <linux/module.h>
  24#include <linux/slab.h>
  25
  26#include <linux/etherdevice.h>
  27#include <linux/ethtool.h>
  28#include <linux/if_vlan.h>
  29
  30#include <linux/in.h>
  31#include <linux/ip.h>
  32#include <linux/tcp.h>
  33#include <linux/wireless.h>
  34#include <linux/ieee80211.h>
  35#include <linux/if_arp.h>
  36#include <linux/ctype.h>
  37#include <linux/string.h>
  38#include <net/iw_handler.h>
  39
  40#include <linux/dma-mapping.h>
  41#include <net/checksum.h>
  42#include <asm/firmware.h>
  43#include <asm/ps3.h>
  44#include <asm/lv1call.h>
  45
  46#include "ps3_gelic_net.h"
  47#include "ps3_gelic_wireless.h"
  48
  49
  50static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
  51                               u8 *essid, size_t essid_len);
  52static int gelic_wl_try_associate(struct net_device *netdev);
  53
  54/*
  55 * tables
  56 */
  57
  58/* 802.11b/g channel to freq in MHz */
  59static const int channel_freq[] = {
  60        2412, 2417, 2422, 2427, 2432,
  61        2437, 2442, 2447, 2452, 2457,
  62        2462, 2467, 2472, 2484
  63};
  64#define NUM_CHANNELS ARRAY_SIZE(channel_freq)
  65
  66/* in bps */
  67static const int bitrate_list[] = {
  68          1000000,
  69          2000000,
  70          5500000,
  71         11000000,
  72          6000000,
  73          9000000,
  74         12000000,
  75         18000000,
  76         24000000,
  77         36000000,
  78         48000000,
  79         54000000
  80};
  81#define NUM_BITRATES ARRAY_SIZE(bitrate_list)
  82
  83/*
  84 * wpa2 support requires the hypervisor version 2.0 or later
  85 */
  86static inline int wpa2_capable(void)
  87{
  88        return 0 <= ps3_compare_firmware_version(2, 0, 0);
  89}
  90
  91static inline int precise_ie(void)
  92{
  93        return 0 <= ps3_compare_firmware_version(2, 2, 0);
  94}
  95/*
  96 * post_eurus_cmd helpers
  97 */
  98struct eurus_cmd_arg_info {
  99        int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
 100        int post_arg; /* command requires arg1, arg2 at GET_RESULT */
 101};
 102
 103static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
 104        [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
 105        [GELIC_EURUS_CMD_SET_WEP_CFG]    = { .pre_arg = 1},
 106        [GELIC_EURUS_CMD_SET_WPA_CFG]    = { .pre_arg = 1},
 107        [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
 108        [GELIC_EURUS_CMD_GET_WEP_CFG]    = { .post_arg = 1},
 109        [GELIC_EURUS_CMD_GET_WPA_CFG]    = { .post_arg = 1},
 110        [GELIC_EURUS_CMD_GET_RSSI_CFG]   = { .post_arg = 1},
 111        [GELIC_EURUS_CMD_START_SCAN]     = { .pre_arg = 1},
 112        [GELIC_EURUS_CMD_GET_SCAN]       = { .post_arg = 1},
 113};
 114
 115#ifdef DEBUG
 116static const char *cmdstr(enum gelic_eurus_command ix)
 117{
 118        switch (ix) {
 119        case GELIC_EURUS_CMD_ASSOC:
 120                return "ASSOC";
 121        case GELIC_EURUS_CMD_DISASSOC:
 122                return "DISASSOC";
 123        case GELIC_EURUS_CMD_START_SCAN:
 124                return "SCAN";
 125        case GELIC_EURUS_CMD_GET_SCAN:
 126                return "GET SCAN";
 127        case GELIC_EURUS_CMD_SET_COMMON_CFG:
 128                return "SET_COMMON_CFG";
 129        case GELIC_EURUS_CMD_GET_COMMON_CFG:
 130                return "GET_COMMON_CFG";
 131        case GELIC_EURUS_CMD_SET_WEP_CFG:
 132                return "SET_WEP_CFG";
 133        case GELIC_EURUS_CMD_GET_WEP_CFG:
 134                return "GET_WEP_CFG";
 135        case GELIC_EURUS_CMD_SET_WPA_CFG:
 136                return "SET_WPA_CFG";
 137        case GELIC_EURUS_CMD_GET_WPA_CFG:
 138                return "GET_WPA_CFG";
 139        case GELIC_EURUS_CMD_GET_RSSI_CFG:
 140                return "GET_RSSI";
 141        default:
 142                break;
 143        }
 144        return "";
 145};
 146#else
 147static inline const char *cmdstr(enum gelic_eurus_command ix)
 148{
 149        return "";
 150}
 151#endif
 152
 153/* synchronously do eurus commands */
 154static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
 155{
 156        struct gelic_eurus_cmd *cmd;
 157        struct gelic_card *card;
 158        struct gelic_wl_info *wl;
 159
 160        u64 arg1, arg2;
 161
 162        pr_debug("%s: <-\n", __func__);
 163        cmd = container_of(work, struct gelic_eurus_cmd, work);
 164        BUG_ON(cmd_info[cmd->cmd].pre_arg &&
 165               cmd_info[cmd->cmd].post_arg);
 166        wl = cmd->wl;
 167        card = port_to_card(wl_port(wl));
 168
 169        if (cmd_info[cmd->cmd].pre_arg) {
 170                arg1 = (cmd->buffer) ?
 171                        ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
 172                        0;
 173                arg2 = cmd->buf_size;
 174        } else {
 175                arg1 = 0;
 176                arg2 = 0;
 177        }
 178        init_completion(&wl->cmd_done_intr);
 179        pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
 180        cmd->status = lv1_net_control(bus_id(card), dev_id(card),
 181                                      GELIC_LV1_POST_WLAN_CMD,
 182                                      cmd->cmd, arg1, arg2,
 183                                      &cmd->tag, &cmd->size);
 184        if (cmd->status) {
 185                complete(&cmd->done);
 186                pr_info("%s: cmd issue failed\n", __func__);
 187                return;
 188        }
 189
 190        wait_for_completion(&wl->cmd_done_intr);
 191
 192        if (cmd_info[cmd->cmd].post_arg) {
 193                arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
 194                arg2 = cmd->buf_size;
 195        } else {
 196                arg1 = 0;
 197                arg2 = 0;
 198        }
 199
 200        cmd->status = lv1_net_control(bus_id(card), dev_id(card),
 201                                      GELIC_LV1_GET_WLAN_CMD_RESULT,
 202                                      cmd->tag, arg1, arg2,
 203                                      &cmd->cmd_status, &cmd->size);
 204#ifdef DEBUG
 205        if (cmd->status || cmd->cmd_status) {
 206        pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
 207                 cmd->tag, arg1, arg2);
 208        pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
 209                 __func__, cmd->status, cmd->cmd_status, cmd->size);
 210        }
 211#endif
 212        complete(&cmd->done);
 213        pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
 214}
 215
 216static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
 217                                                    unsigned int eurus_cmd,
 218                                                    void *buffer,
 219                                                    unsigned int buf_size)
 220{
 221        struct gelic_eurus_cmd *cmd;
 222
 223        /* allocate cmd */
 224        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 225        if (!cmd)
 226                return NULL;
 227
 228        /* initialize members */
 229        cmd->cmd = eurus_cmd;
 230        cmd->buffer = buffer;
 231        cmd->buf_size = buf_size;
 232        cmd->wl = wl;
 233        INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
 234        init_completion(&cmd->done);
 235        queue_work(wl->eurus_cmd_queue, &cmd->work);
 236
 237        /* wait for command completion */
 238        wait_for_completion(&cmd->done);
 239
 240        return cmd;
 241}
 242
 243static u32 gelic_wl_get_link(struct net_device *netdev)
 244{
 245        struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 246        u32 ret;
 247
 248        pr_debug("%s: <-\n", __func__);
 249        mutex_lock(&wl->assoc_stat_lock);
 250        if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
 251                ret = 1;
 252        else
 253                ret = 0;
 254        mutex_unlock(&wl->assoc_stat_lock);
 255        pr_debug("%s: ->\n", __func__);
 256        return ret;
 257}
 258
 259static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
 260{
 261        union iwreq_data data;
 262
 263        memset(&data, 0, sizeof(data));
 264        if (bssid)
 265                memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
 266        data.ap_addr.sa_family = ARPHRD_ETHER;
 267        wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
 268                            &data, NULL);
 269}
 270
 271/*
 272 * wireless extension handlers and helpers
 273 */
 274
 275/* SIOGIWNAME */
 276static int gelic_wl_get_name(struct net_device *dev,
 277                             struct iw_request_info *info,
 278                             union iwreq_data *iwreq, char *extra)
 279{
 280        strcpy(iwreq->name, "IEEE 802.11bg");
 281        return 0;
 282}
 283
 284static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
 285{
 286        struct gelic_card *card = port_to_card(wl_port(wl));
 287        u64 ch_info_raw, tmp;
 288        int status;
 289
 290        if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
 291                status = lv1_net_control(bus_id(card), dev_id(card),
 292                                         GELIC_LV1_GET_CHANNEL, 0, 0, 0,
 293                                         &ch_info_raw,
 294                                         &tmp);
 295                /* some fw versions may return error */
 296                if (status) {
 297                        if (status != LV1_NO_ENTRY)
 298                                pr_info("%s: available ch unknown\n", __func__);
 299                        wl->ch_info = 0x07ff;/* 11 ch */
 300                } else
 301                        /* 16 bits of MSB has available channels */
 302                        wl->ch_info = ch_info_raw >> 48;
 303        }
 304}
 305
 306/* SIOGIWRANGE */
 307static int gelic_wl_get_range(struct net_device *netdev,
 308                              struct iw_request_info *info,
 309                              union iwreq_data *iwreq, char *extra)
 310{
 311        struct iw_point *point = &iwreq->data;
 312        struct iw_range *range = (struct iw_range *)extra;
 313        struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 314        unsigned int i, chs;
 315
 316        pr_debug("%s: <-\n", __func__);
 317        point->length = sizeof(struct iw_range);
 318        memset(range, 0, sizeof(struct iw_range));
 319
 320        range->we_version_compiled = WIRELESS_EXT;
 321        range->we_version_source = 22;
 322
 323        /* available channels and frequencies */
 324        gelic_wl_get_ch_info(wl);
 325
 326        for (i = 0, chs = 0;
 327             i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
 328                if (wl->ch_info & (1 << i)) {
 329                        range->freq[chs].i = i + 1;
 330                        range->freq[chs].m = channel_freq[i];
 331                        range->freq[chs].e = 6;
 332                        chs++;
 333                }
 334        range->num_frequency = chs;
 335        range->old_num_frequency = chs;
 336        range->num_channels = chs;
 337        range->old_num_channels = chs;
 338
 339        /* bitrates */
 340        for (i = 0; i < NUM_BITRATES; i++)
 341                range->bitrate[i] = bitrate_list[i];
 342        range->num_bitrates = i;
 343
 344        /* signal levels */
 345        range->max_qual.qual = 100; /* relative value */
 346        range->max_qual.level = 100;
 347        range->avg_qual.qual = 50;
 348        range->avg_qual.level = 50;
 349        range->sensitivity = 0;
 350
 351        /* Event capability */
 352        IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 353        IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 354        IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 355
 356        /* encryption capability */
 357        range->enc_capa = IW_ENC_CAPA_WPA |
 358                IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
 359                IW_ENC_CAPA_4WAY_HANDSHAKE;
 360        if (wpa2_capable())
 361                range->enc_capa |= IW_ENC_CAPA_WPA2;
 362        range->encoding_size[0] = 5;    /* 40bit WEP */
 363        range->encoding_size[1] = 13;   /* 104bit WEP */
 364        range->encoding_size[2] = 32;   /* WPA-PSK */
 365        range->num_encoding_sizes = 3;
 366        range->max_encoding_tokens = GELIC_WEP_KEYS;
 367
 368        /* scan capability */
 369        range->scan_capa = IW_SCAN_CAPA_ESSID;
 370
 371        pr_debug("%s: ->\n", __func__);
 372        return 0;
 373
 374}
 375
 376/* SIOC{G,S}IWSCAN */
 377static int gelic_wl_set_scan(struct net_device *netdev,
 378                           struct iw_request_info *info,
 379                           union iwreq_data *wrqu, char *extra)
 380{
 381        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 382        struct iw_scan_req *req;
 383        u8 *essid = NULL;
 384        size_t essid_len = 0;
 385
 386        if (wrqu->data.length == sizeof(struct iw_scan_req) &&
 387            wrqu->data.flags & IW_SCAN_THIS_ESSID) {
 388                req = (struct iw_scan_req*)extra;
 389                essid = req->essid;
 390                essid_len = req->essid_len;
 391                pr_debug("%s: ESSID scan =%s\n", __func__, essid);
 392        }
 393        return gelic_wl_start_scan(wl, 1, essid, essid_len);
 394}
 395
 396#define OUI_LEN 3
 397static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
 398static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
 399
 400/*
 401 * synthesize WPA/RSN IE data
 402 * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
 403 * for the format
 404 */
 405static size_t gelic_wl_synthesize_ie(u8 *buf,
 406                                     struct gelic_eurus_scan_info *scan)
 407{
 408
 409        const u8 *oui_header;
 410        u8 *start = buf;
 411        int rsn;
 412        int ccmp;
 413
 414        pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
 415        switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
 416        case GELIC_EURUS_SCAN_SEC_WPA:
 417                rsn = 0;
 418                break;
 419        case GELIC_EURUS_SCAN_SEC_WPA2:
 420                rsn = 1;
 421                break;
 422        default:
 423                /* WEP or none.  No IE returned */
 424                return 0;
 425        }
 426
 427        switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
 428        case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
 429                ccmp = 0;
 430                break;
 431        case GELIC_EURUS_SCAN_SEC_WPA_AES:
 432                ccmp = 1;
 433                break;
 434        default:
 435                if (rsn) {
 436                        ccmp = 1;
 437                        pr_info("%s: no cipher info. defaulted to CCMP\n",
 438                                __func__);
 439                } else {
 440                        ccmp = 0;
 441                        pr_info("%s: no cipher info. defaulted to TKIP\n",
 442                                __func__);
 443                }
 444        }
 445
 446        if (rsn)
 447                oui_header = rsn_oui;
 448        else
 449                oui_header = wpa_oui;
 450
 451        /* element id */
 452        if (rsn)
 453                *buf++ = WLAN_EID_RSN;
 454        else
 455                *buf++ = WLAN_EID_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
 512struct ie_item {
 513        u8 *data;
 514        u8 len;
 515};
 516
 517struct ie_info {
 518        struct ie_item wpa;
 519        struct ie_item rsn;
 520};
 521
 522static void gelic_wl_parse_ie(u8 *data, size_t len,
 523                              struct ie_info *ie_info)
 524{
 525        size_t data_left = len;
 526        u8 *pos = data;
 527        u8 item_len;
 528        u8 item_id;
 529
 530        pr_debug("%s: data=%p len=%ld\n", __func__,
 531                 data, len);
 532        memset(ie_info, 0, sizeof(struct ie_info));
 533
 534        while (2 <= data_left) {
 535                item_id = *pos++;
 536                item_len = *pos++;
 537                data_left -= 2;
 538
 539                if (data_left < item_len)
 540                        break;
 541
 542                switch (item_id) {
 543                case WLAN_EID_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 */
 574static char *gelic_wl_translate_scan(struct net_device *netdev,
 575                                     struct iw_request_info *info,
 576                                     char *ev,
 577                                     char *stop,
 578                                     struct gelic_wl_scan_info *network)
 579{
 580        struct iw_event iwe;
 581        struct gelic_eurus_scan_info *scan = network->hwinfo;
 582        char *tmp;
 583        u8 rate;
 584        unsigned int i, j, len;
 585        u8 buf[64]; /* arbitrary size large enough */
 586
 587        pr_debug("%s: <-\n", __func__);
 588
 589        /* first entry should be AP's mac address */
 590        iwe.cmd = SIOCGIWAP;
 591        iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 592        memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
 593        ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
 594
 595        /* ESSID */
 596        iwe.cmd = SIOCGIWESSID;
 597        iwe.u.data.flags = 1;
 598        iwe.u.data.length = strnlen(scan->essid, 32);
 599        ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
 600
 601        /* FREQUENCY */
 602        iwe.cmd = SIOCGIWFREQ;
 603        iwe.u.freq.m = be16_to_cpu(scan->channel);
 604        iwe.u.freq.e = 0; /* table value in MHz */
 605        iwe.u.freq.i = 0;
 606        ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
 607
 608        /* RATES */
 609        iwe.cmd = SIOCGIWRATE;
 610        iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 611        /* to stuff multiple values in one event */
 612        tmp = ev + iwe_stream_lcp_len(info);
 613        /* put them in ascendant order (older is first) */
 614        i = 0;
 615        j = 0;
 616        pr_debug("%s: rates=%d rate=%d\n", __func__,
 617                 network->rate_len, network->rate_ext_len);
 618        while (i < network->rate_len) {
 619                if (j < network->rate_ext_len &&
 620                    ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
 621                    rate = scan->ext_rate[j++] & 0x7f;
 622                else
 623                    rate = scan->rate[i++] & 0x7f;
 624                iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
 625                tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
 626                                           IW_EV_PARAM_LEN);
 627        }
 628        while (j < network->rate_ext_len) {
 629                iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
 630                tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
 631                                           IW_EV_PARAM_LEN);
 632        }
 633        /* Check if we added any rate */
 634        if (iwe_stream_lcp_len(info) < (tmp - ev))
 635                ev = tmp;
 636
 637        /* ENCODE */
 638        iwe.cmd = SIOCGIWENCODE;
 639        if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
 640                iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
 641        else
 642                iwe.u.data.flags = IW_ENCODE_DISABLED;
 643        iwe.u.data.length = 0;
 644        ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
 645
 646        /* MODE */
 647        iwe.cmd = SIOCGIWMODE;
 648        if (be16_to_cpu(scan->capability) &
 649            (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
 650                if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
 651                        iwe.u.mode = IW_MODE_MASTER;
 652                else
 653                        iwe.u.mode = IW_MODE_ADHOC;
 654                ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
 655        }
 656
 657        /* QUAL */
 658        iwe.cmd = IWEVQUAL;
 659        iwe.u.qual.updated  = IW_QUAL_ALL_UPDATED |
 660                        IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
 661        iwe.u.qual.level = be16_to_cpu(scan->rssi);
 662        iwe.u.qual.qual = be16_to_cpu(scan->rssi);
 663        iwe.u.qual.noise = 0;
 664        ev  = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
 665
 666        /* RSN */
 667        memset(&iwe, 0, sizeof(iwe));
 668        if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
 669                /* If wpa[2] capable station, synthesize IE and put it */
 670                len = gelic_wl_synthesize_ie(buf, scan);
 671                if (len) {
 672                        iwe.cmd = IWEVGENIE;
 673                        iwe.u.data.length = len;
 674                        ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
 675                }
 676        } else {
 677                /* this scan info has IE data */
 678                struct ie_info ie_info;
 679                size_t data_len;
 680
 681                data_len = be16_to_cpu(scan->size) - sizeof(*scan);
 682
 683                gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
 684
 685                if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
 686                        memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
 687                        iwe.cmd = IWEVGENIE;
 688                        iwe.u.data.length = ie_info.wpa.len;
 689                        ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
 690                }
 691
 692                if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
 693                        memset(&iwe, 0, sizeof(iwe));
 694                        memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
 695                        iwe.cmd = IWEVGENIE;
 696                        iwe.u.data.length = ie_info.rsn.len;
 697                        ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
 698                }
 699        }
 700
 701        pr_debug("%s: ->\n", __func__);
 702        return ev;
 703}
 704
 705
 706static int gelic_wl_get_scan(struct net_device *netdev,
 707                             struct iw_request_info *info,
 708                             union iwreq_data *wrqu, char *extra)
 709{
 710        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 711        struct gelic_wl_scan_info *scan_info;
 712        char *ev = extra;
 713        char *stop = ev + wrqu->data.length;
 714        int ret = 0;
 715        unsigned long this_time = jiffies;
 716
 717        pr_debug("%s: <-\n", __func__);
 718        if (mutex_lock_interruptible(&wl->scan_lock))
 719                return -EAGAIN;
 720
 721        switch (wl->scan_stat) {
 722        case GELIC_WL_SCAN_STAT_SCANNING:
 723                /* If a scan in progress, caller should call me again */
 724                ret = -EAGAIN;
 725                goto out;
 726                break;
 727
 728        case GELIC_WL_SCAN_STAT_INIT:
 729                /* last scan request failed or never issued */
 730                ret = -ENODEV;
 731                goto out;
 732                break;
 733        case GELIC_WL_SCAN_STAT_GOT_LIST:
 734                /* ok, use current list */
 735                break;
 736        }
 737
 738        list_for_each_entry(scan_info, &wl->network_list, list) {
 739                if (wl->scan_age == 0 ||
 740                    time_after(scan_info->last_scanned + wl->scan_age,
 741                               this_time))
 742                        ev = gelic_wl_translate_scan(netdev, info,
 743                                                     ev, stop,
 744                                                     scan_info);
 745                else
 746                        pr_debug("%s:entry too old\n", __func__);
 747
 748                if (stop - ev <= IW_EV_ADDR_LEN) {
 749                        ret = -E2BIG;
 750                        goto out;
 751                }
 752        }
 753
 754        wrqu->data.length = ev - extra;
 755        wrqu->data.flags = 0;
 756out:
 757        mutex_unlock(&wl->scan_lock);
 758        pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
 759        return ret;
 760}
 761
 762#ifdef DEBUG
 763static void scan_list_dump(struct gelic_wl_info *wl)
 764{
 765        struct gelic_wl_scan_info *scan_info;
 766        int i;
 767
 768        i = 0;
 769        list_for_each_entry(scan_info, &wl->network_list, list) {
 770                pr_debug("%s: item %d\n", __func__, i++);
 771                pr_debug("valid=%d eurusindex=%d last=%lx\n",
 772                         scan_info->valid, scan_info->eurus_index,
 773                         scan_info->last_scanned);
 774                pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
 775                         scan_info->rate_len, scan_info->rate_ext_len,
 776                         scan_info->essid_len);
 777                /* -- */
 778                pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
 779                pr_debug("essid=%s\n", scan_info->hwinfo->essid);
 780        }
 781}
 782#endif
 783
 784static int gelic_wl_set_auth(struct net_device *netdev,
 785                             struct iw_request_info *info,
 786                             union iwreq_data *data, char *extra)
 787{
 788        struct iw_param *param = &data->param;
 789        struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 790        unsigned long irqflag;
 791        int ret = 0;
 792
 793        pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
 794        spin_lock_irqsave(&wl->lock, irqflag);
 795        switch (param->flags & IW_AUTH_INDEX) {
 796        case IW_AUTH_WPA_VERSION:
 797                if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
 798                        pr_debug("%s: NO WPA selected\n", __func__);
 799                        wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 800                        wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 801                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 802                }
 803                if (param->value & IW_AUTH_WPA_VERSION_WPA) {
 804                        pr_debug("%s: WPA version 1 selected\n", __func__);
 805                        wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 806                        wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 807                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 808                        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 809                }
 810                if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
 811                        /*
 812                         * As the hypervisor may not tell the cipher
 813                         * information of the AP if it is WPA2,
 814                         * you will not decide suitable cipher from
 815                         * its beacon.
 816                         * You should have knowledge about the AP's
 817                         * cipher information in other method prior to
 818                         * the association.
 819                         */
 820                        if (!precise_ie())
 821                                pr_info("%s: WPA2 may not work\n", __func__);
 822                        if (wpa2_capable()) {
 823                                wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
 824                                wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 825                                wl->pairwise_cipher_method =
 826                                        GELIC_WL_CIPHER_AES;
 827                                wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 828                        } else
 829                                ret = -EINVAL;
 830                }
 831                break;
 832
 833        case IW_AUTH_CIPHER_PAIRWISE:
 834                if (param->value &
 835                    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 836                        pr_debug("%s: WEP selected\n", __func__);
 837                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 838                }
 839                if (param->value & IW_AUTH_CIPHER_TKIP) {
 840                        pr_debug("%s: TKIP selected\n", __func__);
 841                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 842                }
 843                if (param->value & IW_AUTH_CIPHER_CCMP) {
 844                        pr_debug("%s: CCMP selected\n", __func__);
 845                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
 846                }
 847                if (param->value & IW_AUTH_CIPHER_NONE) {
 848                        pr_debug("%s: no auth selected\n", __func__);
 849                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
 850                }
 851                break;
 852        case IW_AUTH_CIPHER_GROUP:
 853                if (param->value &
 854                    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 855                        pr_debug("%s: WEP selected\n", __func__);
 856                        wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 857                }
 858                if (param->value & IW_AUTH_CIPHER_TKIP) {
 859                        pr_debug("%s: TKIP selected\n", __func__);
 860                        wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 861                }
 862                if (param->value & IW_AUTH_CIPHER_CCMP) {
 863                        pr_debug("%s: CCMP selected\n", __func__);
 864                        wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 865                }
 866                if (param->value & IW_AUTH_CIPHER_NONE) {
 867                        pr_debug("%s: no auth selected\n", __func__);
 868                        wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
 869                }
 870                break;
 871        case IW_AUTH_80211_AUTH_ALG:
 872                if (param->value & IW_AUTH_ALG_SHARED_KEY) {
 873                        pr_debug("%s: shared key specified\n", __func__);
 874                        wl->auth_method = GELIC_EURUS_AUTH_SHARED;
 875                } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
 876                        pr_debug("%s: open system specified\n", __func__);
 877                        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 878                } else
 879                        ret = -EINVAL;
 880                break;
 881
 882        case IW_AUTH_WPA_ENABLED:
 883                if (param->value) {
 884                        pr_debug("%s: WPA enabled\n", __func__);
 885                        wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 886                } else {
 887                        pr_debug("%s: WPA disabled\n", __func__);
 888                        wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 889                }
 890                break;
 891
 892        case IW_AUTH_KEY_MGMT:
 893                if (param->value & IW_AUTH_KEY_MGMT_PSK)
 894                        break;
 895                /* intentionally fall through */
 896        default:
 897                ret = -EOPNOTSUPP;
 898                break;
 899        }
 900
 901        if (!ret)
 902                set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 903
 904        spin_unlock_irqrestore(&wl->lock, irqflag);
 905        pr_debug("%s: -> %d\n", __func__, ret);
 906        return ret;
 907}
 908
 909static int gelic_wl_get_auth(struct net_device *netdev,
 910                             struct iw_request_info *info,
 911                             union iwreq_data *iwreq, char *extra)
 912{
 913        struct iw_param *param = &iwreq->param;
 914        struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 915        unsigned long irqflag;
 916        int ret = 0;
 917
 918        pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
 919        spin_lock_irqsave(&wl->lock, irqflag);
 920        switch (param->flags & IW_AUTH_INDEX) {
 921        case IW_AUTH_WPA_VERSION:
 922                switch (wl->wpa_level) {
 923                case GELIC_WL_WPA_LEVEL_WPA:
 924                        param->value |= IW_AUTH_WPA_VERSION_WPA;
 925                        break;
 926                case GELIC_WL_WPA_LEVEL_WPA2:
 927                        param->value |= IW_AUTH_WPA_VERSION_WPA2;
 928                        break;
 929                default:
 930                        param->value |= IW_AUTH_WPA_VERSION_DISABLED;
 931                }
 932                break;
 933
 934        case IW_AUTH_80211_AUTH_ALG:
 935                if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
 936                        param->value = IW_AUTH_ALG_SHARED_KEY;
 937                else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
 938                        param->value = IW_AUTH_ALG_OPEN_SYSTEM;
 939                break;
 940
 941        case IW_AUTH_WPA_ENABLED:
 942                switch (wl->wpa_level) {
 943                case GELIC_WL_WPA_LEVEL_WPA:
 944                case GELIC_WL_WPA_LEVEL_WPA2:
 945                        param->value = 1;
 946                        break;
 947                default:
 948                        param->value = 0;
 949                        break;
 950                }
 951                break;
 952        default:
 953                ret = -EOPNOTSUPP;
 954        }
 955
 956        spin_unlock_irqrestore(&wl->lock, irqflag);
 957        pr_debug("%s: -> %d\n", __func__, ret);
 958        return ret;
 959}
 960
 961/* SIOC{S,G}IWESSID */
 962static int gelic_wl_set_essid(struct net_device *netdev,
 963                              struct iw_request_info *info,
 964                              union iwreq_data *data, char *extra)
 965{
 966        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 967        unsigned long irqflag;
 968
 969        pr_debug("%s: <- l=%d f=%d\n", __func__,
 970                 data->essid.length, data->essid.flags);
 971        if (IW_ESSID_MAX_SIZE < data->essid.length)
 972                return -EINVAL;
 973
 974        spin_lock_irqsave(&wl->lock, irqflag);
 975        if (data->essid.flags) {
 976                wl->essid_len = data->essid.length;
 977                memcpy(wl->essid, extra, wl->essid_len);
 978                pr_debug("%s: essid = '%s'\n", __func__, extra);
 979                set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
 980        } else {
 981                pr_debug("%s: ESSID any\n", __func__);
 982                clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
 983        }
 984        set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 985        spin_unlock_irqrestore(&wl->lock, irqflag);
 986
 987
 988        gelic_wl_try_associate(netdev); /* FIXME */
 989        pr_debug("%s: ->\n", __func__);
 990        return 0;
 991}
 992
 993static int gelic_wl_get_essid(struct net_device *netdev,
 994                              struct iw_request_info *info,
 995                              union iwreq_data *data, char *extra)
 996{
 997        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 998        unsigned long irqflag;
 999
1000        pr_debug("%s: <-\n", __func__);
1001        mutex_lock(&wl->assoc_stat_lock);
1002        spin_lock_irqsave(&wl->lock, irqflag);
1003        if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
1004            wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1005                memcpy(extra, wl->essid, wl->essid_len);
1006                data->essid.length = wl->essid_len;
1007                data->essid.flags = 1;
1008        } else
1009                data->essid.flags = 0;
1010
1011        mutex_unlock(&wl->assoc_stat_lock);
1012        spin_unlock_irqrestore(&wl->lock, irqflag);
1013        pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
1014
1015        return 0;
1016}
1017
1018/* SIO{S,G}IWENCODE */
1019static int gelic_wl_set_encode(struct net_device *netdev,
1020                               struct iw_request_info *info,
1021                               union iwreq_data *data, char *extra)
1022{
1023        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1024        struct iw_point *enc = &data->encoding;
1025        __u16 flags;
1026        unsigned long irqflag;
1027        int key_index, index_specified;
1028        int ret = 0;
1029
1030        pr_debug("%s: <-\n", __func__);
1031        flags = enc->flags & IW_ENCODE_FLAGS;
1032        key_index = enc->flags & IW_ENCODE_INDEX;
1033
1034        pr_debug("%s: key_index = %d\n", __func__, key_index);
1035        pr_debug("%s: key_len = %d\n", __func__, enc->length);
1036        pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1037
1038        if (GELIC_WEP_KEYS < key_index)
1039                return -EINVAL;
1040
1041        spin_lock_irqsave(&wl->lock, irqflag);
1042        if (key_index) {
1043                index_specified = 1;
1044                key_index--;
1045        } else {
1046                index_specified = 0;
1047                key_index = wl->current_key;
1048        }
1049
1050        if (flags & IW_ENCODE_NOKEY) {
1051                /* if just IW_ENCODE_NOKEY, change current key index */
1052                if (!flags && index_specified) {
1053                        wl->current_key = key_index;
1054                        goto done;
1055                }
1056
1057                if (flags & IW_ENCODE_DISABLED) {
1058                        if (!index_specified) {
1059                                /* disable encryption */
1060                                wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1061                                wl->pairwise_cipher_method =
1062                                        GELIC_WL_CIPHER_NONE;
1063                                /* invalidate all key */
1064                                wl->key_enabled = 0;
1065                        } else
1066                                clear_bit(key_index, &wl->key_enabled);
1067                }
1068
1069                if (flags & IW_ENCODE_OPEN)
1070                        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1071                if (flags & IW_ENCODE_RESTRICTED) {
1072                        pr_info("%s: shared key mode enabled\n", __func__);
1073                        wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1074                }
1075        } else {
1076                if (IW_ENCODING_TOKEN_MAX < enc->length) {
1077                        ret = -EINVAL;
1078                        goto done;
1079                }
1080                wl->key_len[key_index] = enc->length;
1081                memcpy(wl->key[key_index], extra, enc->length);
1082                set_bit(key_index, &wl->key_enabled);
1083                wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1084                wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1085        }
1086        set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1087done:
1088        spin_unlock_irqrestore(&wl->lock, irqflag);
1089        pr_debug("%s: ->\n", __func__);
1090        return ret;
1091}
1092
1093static int gelic_wl_get_encode(struct net_device *netdev,
1094                               struct iw_request_info *info,
1095                               union iwreq_data *data, char *extra)
1096{
1097        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1098        struct iw_point *enc = &data->encoding;
1099        unsigned long irqflag;
1100        unsigned int key_index, index_specified;
1101        int ret = 0;
1102
1103        pr_debug("%s: <-\n", __func__);
1104        key_index = enc->flags & IW_ENCODE_INDEX;
1105        pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1106                 enc->flags, enc->pointer, enc->length, extra);
1107        if (GELIC_WEP_KEYS < key_index)
1108                return -EINVAL;
1109
1110        spin_lock_irqsave(&wl->lock, irqflag);
1111        if (key_index) {
1112                index_specified = 1;
1113                key_index--;
1114        } else {
1115                index_specified = 0;
1116                key_index = wl->current_key;
1117        }
1118
1119        if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1120                switch (wl->auth_method) {
1121                case GELIC_EURUS_AUTH_OPEN:
1122                        enc->flags = IW_ENCODE_OPEN;
1123                        break;
1124                case GELIC_EURUS_AUTH_SHARED:
1125                        enc->flags = IW_ENCODE_RESTRICTED;
1126                        break;
1127                }
1128        } else
1129                enc->flags = IW_ENCODE_DISABLED;
1130
1131        if (test_bit(key_index, &wl->key_enabled)) {
1132                if (enc->length < wl->key_len[key_index]) {
1133                        ret = -EINVAL;
1134                        goto done;
1135                }
1136                enc->length = wl->key_len[key_index];
1137                memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1138        } else {
1139                enc->length = 0;
1140                enc->flags |= IW_ENCODE_NOKEY;
1141        }
1142        enc->flags |= key_index + 1;
1143        pr_debug("%s: -> flag=%x len=%d\n", __func__,
1144                 enc->flags, enc->length);
1145
1146done:
1147        spin_unlock_irqrestore(&wl->lock, irqflag);
1148        return ret;
1149}
1150
1151/* SIOC{S,G}IWAP */
1152static int gelic_wl_set_ap(struct net_device *netdev,
1153                           struct iw_request_info *info,
1154                           union iwreq_data *data, char *extra)
1155{
1156        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1157        unsigned long irqflag;
1158
1159        pr_debug("%s: <-\n", __func__);
1160        if (data->ap_addr.sa_family != ARPHRD_ETHER)
1161                return -EINVAL;
1162
1163        spin_lock_irqsave(&wl->lock, irqflag);
1164        if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1165                memcpy(wl->bssid, data->ap_addr.sa_data,
1166                       ETH_ALEN);
1167                set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1168                set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1169                pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1170        } else {
1171                pr_debug("%s: clear bssid\n", __func__);
1172                clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1173                memset(wl->bssid, 0, ETH_ALEN);
1174        }
1175        spin_unlock_irqrestore(&wl->lock, irqflag);
1176        pr_debug("%s: ->\n", __func__);
1177        return 0;
1178}
1179
1180static int gelic_wl_get_ap(struct net_device *netdev,
1181                           struct iw_request_info *info,
1182                           union iwreq_data *data, char *extra)
1183{
1184        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1185        unsigned long irqflag;
1186
1187        pr_debug("%s: <-\n", __func__);
1188        mutex_lock(&wl->assoc_stat_lock);
1189        spin_lock_irqsave(&wl->lock, irqflag);
1190        if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1191                data->ap_addr.sa_family = ARPHRD_ETHER;
1192                memcpy(data->ap_addr.sa_data, wl->active_bssid,
1193                       ETH_ALEN);
1194        } else
1195                memset(data->ap_addr.sa_data, 0, ETH_ALEN);
1196
1197        spin_unlock_irqrestore(&wl->lock, irqflag);
1198        mutex_unlock(&wl->assoc_stat_lock);
1199        pr_debug("%s: ->\n", __func__);
1200        return 0;
1201}
1202
1203/* SIOC{S,G}IWENCODEEXT */
1204static int gelic_wl_set_encodeext(struct net_device *netdev,
1205                                  struct iw_request_info *info,
1206                                  union iwreq_data *data, char *extra)
1207{
1208        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1209        struct iw_point *enc = &data->encoding;
1210        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1211        __u16 alg;
1212        __u16 flags;
1213        unsigned long irqflag;
1214        int key_index;
1215        int ret = 0;
1216
1217        pr_debug("%s: <-\n", __func__);
1218        flags = enc->flags & IW_ENCODE_FLAGS;
1219        alg = ext->alg;
1220        key_index = enc->flags & IW_ENCODE_INDEX;
1221
1222        pr_debug("%s: key_index = %d\n", __func__, key_index);
1223        pr_debug("%s: key_len = %d\n", __func__, enc->length);
1224        pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1225        pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1226        pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1227
1228        if (GELIC_WEP_KEYS < key_index)
1229                return -EINVAL;
1230
1231        spin_lock_irqsave(&wl->lock, irqflag);
1232        if (key_index)
1233                key_index--;
1234        else
1235                key_index = wl->current_key;
1236
1237        if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1238                /* reques to change default key index */
1239                pr_debug("%s: request to change default key to %d\n",
1240                         __func__, key_index);
1241                wl->current_key = key_index;
1242                goto done;
1243        }
1244
1245        if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1246                pr_debug("%s: alg disabled\n", __func__);
1247                wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1248                wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1249                wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1250                wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1251        } else if (alg == IW_ENCODE_ALG_WEP) {
1252                pr_debug("%s: WEP requested\n", __func__);
1253                if (flags & IW_ENCODE_OPEN) {
1254                        pr_debug("%s: open key mode\n", __func__);
1255                        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1256                }
1257                if (flags & IW_ENCODE_RESTRICTED) {
1258                        pr_debug("%s: shared key mode\n", __func__);
1259                        wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1260                }
1261                if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1262                        pr_info("%s: key is too long %d\n", __func__,
1263                                ext->key_len);
1264                        ret = -EINVAL;
1265                        goto done;
1266                }
1267                /* OK, update the key */
1268                wl->key_len[key_index] = ext->key_len;
1269                memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1270                memcpy(wl->key[key_index], ext->key, ext->key_len);
1271                set_bit(key_index, &wl->key_enabled);
1272                /* remember wep info changed */
1273                set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1274        } else if (alg == IW_ENCODE_ALG_PMK) {
1275                if (ext->key_len != WPA_PSK_LEN) {
1276                        pr_err("%s: PSK length wrong %d\n", __func__,
1277                               ext->key_len);
1278                        ret = -EINVAL;
1279                        goto done;
1280                }
1281                memset(wl->psk, 0, sizeof(wl->psk));
1282                memcpy(wl->psk, ext->key, ext->key_len);
1283                wl->psk_len = ext->key_len;
1284                wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1285                /* remember PSK configured */
1286                set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1287        }
1288done:
1289        spin_unlock_irqrestore(&wl->lock, irqflag);
1290        pr_debug("%s: ->\n", __func__);
1291        return ret;
1292}
1293
1294static int gelic_wl_get_encodeext(struct net_device *netdev,
1295                                  struct iw_request_info *info,
1296                                  union iwreq_data *data, char *extra)
1297{
1298        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1299        struct iw_point *enc = &data->encoding;
1300        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1301        unsigned long irqflag;
1302        int key_index;
1303        int ret = 0;
1304        int max_key_len;
1305
1306        pr_debug("%s: <-\n", __func__);
1307
1308        max_key_len = enc->length - sizeof(struct iw_encode_ext);
1309        if (max_key_len < 0)
1310                return -EINVAL;
1311        key_index = enc->flags & IW_ENCODE_INDEX;
1312
1313        pr_debug("%s: key_index = %d\n", __func__, key_index);
1314        pr_debug("%s: key_len = %d\n", __func__, enc->length);
1315        pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1316
1317        if (GELIC_WEP_KEYS < key_index)
1318                return -EINVAL;
1319
1320        spin_lock_irqsave(&wl->lock, irqflag);
1321        if (key_index)
1322                key_index--;
1323        else
1324                key_index = wl->current_key;
1325
1326        memset(ext, 0, sizeof(struct iw_encode_ext));
1327        switch (wl->group_cipher_method) {
1328        case GELIC_WL_CIPHER_WEP:
1329                ext->alg = IW_ENCODE_ALG_WEP;
1330                enc->flags |= IW_ENCODE_ENABLED;
1331                break;
1332        case GELIC_WL_CIPHER_TKIP:
1333                ext->alg = IW_ENCODE_ALG_TKIP;
1334                enc->flags |= IW_ENCODE_ENABLED;
1335                break;
1336        case GELIC_WL_CIPHER_AES:
1337                ext->alg = IW_ENCODE_ALG_CCMP;
1338                enc->flags |= IW_ENCODE_ENABLED;
1339                break;
1340        case GELIC_WL_CIPHER_NONE:
1341        default:
1342                ext->alg = IW_ENCODE_ALG_NONE;
1343                enc->flags |= IW_ENCODE_NOKEY;
1344                break;
1345        }
1346
1347        if (!(enc->flags & IW_ENCODE_NOKEY)) {
1348                if (max_key_len < wl->key_len[key_index]) {
1349                        ret = -E2BIG;
1350                        goto out;
1351                }
1352                if (test_bit(key_index, &wl->key_enabled))
1353                        memcpy(ext->key, wl->key[key_index],
1354                               wl->key_len[key_index]);
1355                else
1356                        pr_debug("%s: disabled key requested ix=%d\n",
1357                                 __func__, key_index);
1358        }
1359out:
1360        spin_unlock_irqrestore(&wl->lock, irqflag);
1361        pr_debug("%s: ->\n", __func__);
1362        return ret;
1363}
1364/* SIOC{S,G}IWMODE */
1365static int gelic_wl_set_mode(struct net_device *netdev,
1366                             struct iw_request_info *info,
1367                             union iwreq_data *data, char *extra)
1368{
1369        __u32 mode = data->mode;
1370        int ret;
1371
1372        pr_debug("%s: <-\n", __func__);
1373        if (mode == IW_MODE_INFRA)
1374                ret = 0;
1375        else
1376                ret = -EOPNOTSUPP;
1377        pr_debug("%s: -> %d\n", __func__, ret);
1378        return ret;
1379}
1380
1381static int gelic_wl_get_mode(struct net_device *netdev,
1382                             struct iw_request_info *info,
1383                             union iwreq_data *data, char *extra)
1384{
1385        __u32 *mode = &data->mode;
1386        pr_debug("%s: <-\n", __func__);
1387        *mode = IW_MODE_INFRA;
1388        pr_debug("%s: ->\n", __func__);
1389        return 0;
1390}
1391
1392/* SIOCGIWNICKN */
1393static int gelic_wl_get_nick(struct net_device *net_dev,
1394                                  struct iw_request_info *info,
1395                                  union iwreq_data *data, char *extra)
1396{
1397        strcpy(extra, "gelic_wl");
1398        data->data.length = strlen(extra);
1399        data->data.flags = 1;
1400        return 0;
1401}
1402
1403
1404/* --- */
1405
1406static struct iw_statistics *gelic_wl_get_wireless_stats(
1407        struct net_device *netdev)
1408{
1409
1410        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1411        struct gelic_eurus_cmd *cmd;
1412        struct iw_statistics *is;
1413        struct gelic_eurus_rssi_info *rssi;
1414        void *buf;
1415
1416        pr_debug("%s: <-\n", __func__);
1417
1418        buf = (void *)__get_free_page(GFP_KERNEL);
1419        if (!buf)
1420                return NULL;
1421
1422        is = &wl->iwstat;
1423        memset(is, 0, sizeof(*is));
1424        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1425                                   buf, sizeof(*rssi));
1426        if (cmd && !cmd->status && !cmd->cmd_status) {
1427                rssi = buf;
1428                is->qual.level = be16_to_cpu(rssi->rssi);
1429                is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1430                        IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1431        } else
1432                /* not associated */
1433                is->qual.updated = IW_QUAL_ALL_INVALID;
1434
1435        kfree(cmd);
1436        free_page((unsigned long)buf);
1437        pr_debug("%s: ->\n", __func__);
1438        return is;
1439}
1440
1441/*
1442 *  scanning helpers
1443 */
1444static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1445                               u8 *essid, size_t essid_len)
1446{
1447        struct gelic_eurus_cmd *cmd;
1448        int ret = 0;
1449        void *buf = NULL;
1450        size_t len;
1451
1452        pr_debug("%s: <- always=%d\n", __func__, always_scan);
1453        if (mutex_lock_interruptible(&wl->scan_lock))
1454                return -ERESTARTSYS;
1455
1456        /*
1457         * If already a scan in progress, do not trigger more
1458         */
1459        if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1460                pr_debug("%s: scanning now\n", __func__);
1461                goto out;
1462        }
1463
1464        init_completion(&wl->scan_done);
1465        /*
1466         * If we have already a bss list, don't try to get new
1467         * unless we are doing an ESSID scan
1468         */
1469        if ((!essid_len && !always_scan)
1470            && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1471                pr_debug("%s: already has the list\n", __func__);
1472                complete(&wl->scan_done);
1473                goto out;
1474        }
1475
1476        /* ESSID scan ? */
1477        if (essid_len && essid) {
1478                buf = (void *)__get_free_page(GFP_KERNEL);
1479                if (!buf) {
1480                        ret = -ENOMEM;
1481                        goto out;
1482                }
1483                len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1484                memset(buf, 0, len);
1485                memcpy(buf, essid, essid_len);
1486                pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1487        } else
1488                len = 0;
1489
1490        /*
1491         * issue start scan request
1492         */
1493        wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1494        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1495                                   buf, len);
1496        if (!cmd || cmd->status || cmd->cmd_status) {
1497                wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1498                complete(&wl->scan_done);
1499                ret = -ENOMEM;
1500                goto out;
1501        }
1502        kfree(cmd);
1503out:
1504        free_page((unsigned long)buf);
1505        mutex_unlock(&wl->scan_lock);
1506        pr_debug("%s: ->\n", __func__);
1507        return ret;
1508}
1509
1510/*
1511 * retrieve scan result from the chip (hypervisor)
1512 * this function is invoked by schedule work.
1513 */
1514static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1515{
1516        struct gelic_eurus_cmd *cmd = NULL;
1517        struct gelic_wl_scan_info *target, *tmp;
1518        struct gelic_wl_scan_info *oldest = NULL;
1519        struct gelic_eurus_scan_info *scan_info;
1520        unsigned int scan_info_size;
1521        union iwreq_data data;
1522        unsigned long this_time = jiffies;
1523        unsigned int data_len, i, found, r;
1524        void *buf;
1525
1526        pr_debug("%s:start\n", __func__);
1527        mutex_lock(&wl->scan_lock);
1528
1529        buf = (void *)__get_free_page(GFP_KERNEL);
1530        if (!buf) {
1531                pr_info("%s: scan buffer alloc failed\n", __func__);
1532                goto out;
1533        }
1534
1535        if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1536                /*
1537                 * stop() may be called while scanning, ignore result
1538                 */
1539                pr_debug("%s: scan complete when stat != scanning(%d)\n",
1540                         __func__, wl->scan_stat);
1541                goto out;
1542        }
1543
1544        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1545                                   buf, PAGE_SIZE);
1546        if (!cmd || cmd->status || cmd->cmd_status) {
1547                wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1548                pr_info("%s:cmd failed\n", __func__);
1549                kfree(cmd);
1550                goto out;
1551        }
1552        data_len = cmd->size;
1553        pr_debug("%s: data_len = %d\n", __func__, data_len);
1554        kfree(cmd);
1555
1556        /* OK, bss list retrieved */
1557        wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1558
1559        /* mark all entries are old */
1560        list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1561                target->valid = 0;
1562                /* expire too old entries */
1563                if (time_before(target->last_scanned + wl->scan_age,
1564                                this_time)) {
1565                        kfree(target->hwinfo);
1566                        target->hwinfo = NULL;
1567                        list_move_tail(&target->list, &wl->network_free_list);
1568                }
1569        }
1570
1571        /* put them in the network_list */
1572        for (i = 0, scan_info_size = 0, scan_info = buf;
1573             scan_info_size < data_len;
1574             i++, scan_info_size += be16_to_cpu(scan_info->size),
1575             scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1576                pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1577                         be16_to_cpu(scan_info->size),
1578                         &scan_info->bssid[2], scan_info);
1579
1580                /*
1581                 * The wireless firmware may return invalid channel 0 and/or
1582                 * invalid rate if the AP emits zero length SSID ie. As this
1583                 * scan information is useless, ignore it
1584                 */
1585                if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1586                        pr_debug("%s: invalid scan info\n", __func__);
1587                        continue;
1588                }
1589
1590                found = 0;
1591                oldest = NULL;
1592                list_for_each_entry(target, &wl->network_list, list) {
1593                        if (!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);
1648out:
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 */
1661static 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
1672static
1673struct 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 */
1760static 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);
1823out:
1824        free_page((unsigned long)wep);
1825        pr_debug("%s: ->\n", __func__);
1826        return ret;
1827}
1828
1829#ifdef DEBUG
1830static 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
1859static 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 */
1938static 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        }
2040out:
2041        free_page((unsigned long)common);
2042        pr_debug("%s: ->\n", __func__);
2043        return ret;
2044}
2045
2046/*
2047 * connected event
2048 */
2049static 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 */
2076static 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
2114static 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
2139static const char *eventstr(enum gelic_lv1_wl_event event)
2140{
2141        return NULL;
2142}
2143#endif
2144static 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 */
2187static 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);
2254scan_lock_out:
2255        mutex_unlock(&wl->scan_lock);
2256out:
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 */
2264void 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 */
2282static 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
2303static 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
2309static 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
2375fail_event_workqueue:
2376        destroy_workqueue(wl->eurus_cmd_queue);
2377fail_cmd_workqueue:
2378        kfree(wl->networks);
2379fail_bss:
2380        free_netdev(netdev);
2381        pr_debug("%s:end error\n", __func__);
2382        return NULL;
2383
2384}
2385
2386static 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
2407static 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
2451do_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 */
2460static 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 */
2480static 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 */
2519static 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
2537static 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
2567static 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
2581static const struct ethtool_ops gelic_wl_ethtool_ops = {
2582        .get_drvinfo    = gelic_net_get_drvinfo,
2583        .get_link       = gelic_wl_get_link,
2584};
2585
2586static 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 */
2602int __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
2638fail_setup:
2639        gelic_wl_free(port_wl(netdev_port(netdev)));
2640
2641        return ret;
2642}
2643
2644int 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}
2682