linux/drivers/net/ethernet/toshiba/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_VENDOR_SPECIFIC;
 456
 457        /* length filed; set later */
 458        buf++;
 459
 460        /* wpa special header */
 461        if (!rsn) {
 462                memcpy(buf, wpa_oui, OUI_LEN);
 463                buf += OUI_LEN;
 464                *buf++ = 0x01;
 465        }
 466
 467        /* version */
 468        *buf++ = 0x01; /* version 1.0 */
 469        *buf++ = 0x00;
 470
 471        /* group cipher */
 472        memcpy(buf, oui_header, OUI_LEN);
 473        buf += OUI_LEN;
 474
 475        if (ccmp)
 476                *buf++ = 0x04; /* CCMP */
 477        else
 478                *buf++ = 0x02; /* TKIP */
 479
 480        /* pairwise key count always 1 */
 481        *buf++ = 0x01;
 482        *buf++ = 0x00;
 483
 484        /* pairwise key suit */
 485        memcpy(buf, oui_header, OUI_LEN);
 486        buf += OUI_LEN;
 487        if (ccmp)
 488                *buf++ = 0x04; /* CCMP */
 489        else
 490                *buf++ = 0x02; /* TKIP */
 491
 492        /* AKM count is 1 */
 493        *buf++ = 0x01;
 494        *buf++ = 0x00;
 495
 496        /* AKM suite is assumed as PSK*/
 497        memcpy(buf, oui_header, OUI_LEN);
 498        buf += OUI_LEN;
 499        *buf++ = 0x02; /* PSK */
 500
 501        /* RSN capabilities is 0 */
 502        *buf++ = 0x00;
 503        *buf++ = 0x00;
 504
 505        /* set length field */
 506        start[1] = (buf - start - 2);
 507
 508        pr_debug("%s: ->\n", __func__);
 509        return buf - start;
 510}
 511
 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_VENDOR_SPECIFIC:
 544                        if ((OUI_LEN + 1 <= item_len) &&
 545                            !memcmp(pos, wpa_oui, OUI_LEN) &&
 546                            pos[OUI_LEN] == 0x01) {
 547                                ie_info->wpa.data = pos - 2;
 548                                ie_info->wpa.len = item_len + 2;
 549                        }
 550                        break;
 551                case WLAN_EID_RSN:
 552                        ie_info->rsn.data = pos - 2;
 553                        /* length includes the header */
 554                        ie_info->rsn.len = item_len + 2;
 555                        break;
 556                default:
 557                        pr_debug("%s: ignore %#x,%d\n", __func__,
 558                                 item_id, item_len);
 559                        break;
 560                }
 561                pos += item_len;
 562                data_left -= item_len;
 563        }
 564        pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
 565                 ie_info->wpa.data, ie_info->wpa.len,
 566                 ie_info->rsn.data, ie_info->rsn.len);
 567}
 568
 569
 570/*
 571 * translate the scan informations from hypervisor to a
 572 * independent format
 573 */
 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        case GELIC_WL_SCAN_STAT_INIT:
 727                /* last scan request failed or never issued */
 728                ret = -ENODEV;
 729                goto out;
 730        case GELIC_WL_SCAN_STAT_GOT_LIST:
 731                /* ok, use current list */
 732                break;
 733        }
 734
 735        list_for_each_entry(scan_info, &wl->network_list, list) {
 736                if (wl->scan_age == 0 ||
 737                    time_after(scan_info->last_scanned + wl->scan_age,
 738                               this_time))
 739                        ev = gelic_wl_translate_scan(netdev, info,
 740                                                     ev, stop,
 741                                                     scan_info);
 742                else
 743                        pr_debug("%s:entry too old\n", __func__);
 744
 745                if (stop - ev <= IW_EV_ADDR_LEN) {
 746                        ret = -E2BIG;
 747                        goto out;
 748                }
 749        }
 750
 751        wrqu->data.length = ev - extra;
 752        wrqu->data.flags = 0;
 753out:
 754        mutex_unlock(&wl->scan_lock);
 755        pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
 756        return ret;
 757}
 758
 759#ifdef DEBUG
 760static void scan_list_dump(struct gelic_wl_info *wl)
 761{
 762        struct gelic_wl_scan_info *scan_info;
 763        int i;
 764
 765        i = 0;
 766        list_for_each_entry(scan_info, &wl->network_list, list) {
 767                pr_debug("%s: item %d\n", __func__, i++);
 768                pr_debug("valid=%d eurusindex=%d last=%lx\n",
 769                         scan_info->valid, scan_info->eurus_index,
 770                         scan_info->last_scanned);
 771                pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
 772                         scan_info->rate_len, scan_info->rate_ext_len,
 773                         scan_info->essid_len);
 774                /* -- */
 775                pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
 776                pr_debug("essid=%s\n", scan_info->hwinfo->essid);
 777        }
 778}
 779#endif
 780
 781static int gelic_wl_set_auth(struct net_device *netdev,
 782                             struct iw_request_info *info,
 783                             union iwreq_data *data, char *extra)
 784{
 785        struct iw_param *param = &data->param;
 786        struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 787        unsigned long irqflag;
 788        int ret = 0;
 789
 790        pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
 791        spin_lock_irqsave(&wl->lock, irqflag);
 792        switch (param->flags & IW_AUTH_INDEX) {
 793        case IW_AUTH_WPA_VERSION:
 794                if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
 795                        pr_debug("%s: NO WPA selected\n", __func__);
 796                        wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 797                        wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 798                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 799                }
 800                if (param->value & IW_AUTH_WPA_VERSION_WPA) {
 801                        pr_debug("%s: WPA version 1 selected\n", __func__);
 802                        wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 803                        wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 804                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 805                        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 806                }
 807                if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
 808                        /*
 809                         * As the hypervisor may not tell the cipher
 810                         * information of the AP if it is WPA2,
 811                         * you will not decide suitable cipher from
 812                         * its beacon.
 813                         * You should have knowledge about the AP's
 814                         * cipher information in other method prior to
 815                         * the association.
 816                         */
 817                        if (!precise_ie())
 818                                pr_info("%s: WPA2 may not work\n", __func__);
 819                        if (wpa2_capable()) {
 820                                wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
 821                                wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 822                                wl->pairwise_cipher_method =
 823                                        GELIC_WL_CIPHER_AES;
 824                                wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 825                        } else
 826                                ret = -EINVAL;
 827                }
 828                break;
 829
 830        case IW_AUTH_CIPHER_PAIRWISE:
 831                if (param->value &
 832                    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 833                        pr_debug("%s: WEP selected\n", __func__);
 834                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
 835                }
 836                if (param->value & IW_AUTH_CIPHER_TKIP) {
 837                        pr_debug("%s: TKIP selected\n", __func__);
 838                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
 839                }
 840                if (param->value & IW_AUTH_CIPHER_CCMP) {
 841                        pr_debug("%s: CCMP selected\n", __func__);
 842                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
 843                }
 844                if (param->value & IW_AUTH_CIPHER_NONE) {
 845                        pr_debug("%s: no auth selected\n", __func__);
 846                        wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
 847                }
 848                break;
 849        case IW_AUTH_CIPHER_GROUP:
 850                if (param->value &
 851                    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
 852                        pr_debug("%s: WEP selected\n", __func__);
 853                        wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
 854                }
 855                if (param->value & IW_AUTH_CIPHER_TKIP) {
 856                        pr_debug("%s: TKIP selected\n", __func__);
 857                        wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
 858                }
 859                if (param->value & IW_AUTH_CIPHER_CCMP) {
 860                        pr_debug("%s: CCMP selected\n", __func__);
 861                        wl->group_cipher_method = GELIC_WL_CIPHER_AES;
 862                }
 863                if (param->value & IW_AUTH_CIPHER_NONE) {
 864                        pr_debug("%s: no auth selected\n", __func__);
 865                        wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
 866                }
 867                break;
 868        case IW_AUTH_80211_AUTH_ALG:
 869                if (param->value & IW_AUTH_ALG_SHARED_KEY) {
 870                        pr_debug("%s: shared key specified\n", __func__);
 871                        wl->auth_method = GELIC_EURUS_AUTH_SHARED;
 872                } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
 873                        pr_debug("%s: open system specified\n", __func__);
 874                        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
 875                } else
 876                        ret = -EINVAL;
 877                break;
 878
 879        case IW_AUTH_WPA_ENABLED:
 880                if (param->value) {
 881                        pr_debug("%s: WPA enabled\n", __func__);
 882                        wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
 883                } else {
 884                        pr_debug("%s: WPA disabled\n", __func__);
 885                        wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
 886                }
 887                break;
 888
 889        case IW_AUTH_KEY_MGMT:
 890                if (param->value & IW_AUTH_KEY_MGMT_PSK)
 891                        break;
 892                /* intentionally fall through */
 893        default:
 894                ret = -EOPNOTSUPP;
 895                break;
 896        }
 897
 898        if (!ret)
 899                set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 900
 901        spin_unlock_irqrestore(&wl->lock, irqflag);
 902        pr_debug("%s: -> %d\n", __func__, ret);
 903        return ret;
 904}
 905
 906static int gelic_wl_get_auth(struct net_device *netdev,
 907                             struct iw_request_info *info,
 908                             union iwreq_data *iwreq, char *extra)
 909{
 910        struct iw_param *param = &iwreq->param;
 911        struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
 912        unsigned long irqflag;
 913        int ret = 0;
 914
 915        pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
 916        spin_lock_irqsave(&wl->lock, irqflag);
 917        switch (param->flags & IW_AUTH_INDEX) {
 918        case IW_AUTH_WPA_VERSION:
 919                switch (wl->wpa_level) {
 920                case GELIC_WL_WPA_LEVEL_WPA:
 921                        param->value |= IW_AUTH_WPA_VERSION_WPA;
 922                        break;
 923                case GELIC_WL_WPA_LEVEL_WPA2:
 924                        param->value |= IW_AUTH_WPA_VERSION_WPA2;
 925                        break;
 926                default:
 927                        param->value |= IW_AUTH_WPA_VERSION_DISABLED;
 928                }
 929                break;
 930
 931        case IW_AUTH_80211_AUTH_ALG:
 932                if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
 933                        param->value = IW_AUTH_ALG_SHARED_KEY;
 934                else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
 935                        param->value = IW_AUTH_ALG_OPEN_SYSTEM;
 936                break;
 937
 938        case IW_AUTH_WPA_ENABLED:
 939                switch (wl->wpa_level) {
 940                case GELIC_WL_WPA_LEVEL_WPA:
 941                case GELIC_WL_WPA_LEVEL_WPA2:
 942                        param->value = 1;
 943                        break;
 944                default:
 945                        param->value = 0;
 946                        break;
 947                }
 948                break;
 949        default:
 950                ret = -EOPNOTSUPP;
 951        }
 952
 953        spin_unlock_irqrestore(&wl->lock, irqflag);
 954        pr_debug("%s: -> %d\n", __func__, ret);
 955        return ret;
 956}
 957
 958/* SIOC{S,G}IWESSID */
 959static int gelic_wl_set_essid(struct net_device *netdev,
 960                              struct iw_request_info *info,
 961                              union iwreq_data *data, char *extra)
 962{
 963        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 964        unsigned long irqflag;
 965
 966        pr_debug("%s: <- l=%d f=%d\n", __func__,
 967                 data->essid.length, data->essid.flags);
 968        if (IW_ESSID_MAX_SIZE < data->essid.length)
 969                return -EINVAL;
 970
 971        spin_lock_irqsave(&wl->lock, irqflag);
 972        if (data->essid.flags) {
 973                wl->essid_len = data->essid.length;
 974                memcpy(wl->essid, extra, wl->essid_len);
 975                pr_debug("%s: essid = '%s'\n", __func__, extra);
 976                set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
 977        } else {
 978                pr_debug("%s: ESSID any\n", __func__);
 979                clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
 980        }
 981        set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
 982        spin_unlock_irqrestore(&wl->lock, irqflag);
 983
 984
 985        gelic_wl_try_associate(netdev); /* FIXME */
 986        pr_debug("%s: ->\n", __func__);
 987        return 0;
 988}
 989
 990static int gelic_wl_get_essid(struct net_device *netdev,
 991                              struct iw_request_info *info,
 992                              union iwreq_data *data, char *extra)
 993{
 994        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 995        unsigned long irqflag;
 996
 997        pr_debug("%s: <-\n", __func__);
 998        mutex_lock(&wl->assoc_stat_lock);
 999        spin_lock_irqsave(&wl->lock, irqflag);
1000        if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
1001            wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1002                memcpy(extra, wl->essid, wl->essid_len);
1003                data->essid.length = wl->essid_len;
1004                data->essid.flags = 1;
1005        } else
1006                data->essid.flags = 0;
1007
1008        mutex_unlock(&wl->assoc_stat_lock);
1009        spin_unlock_irqrestore(&wl->lock, irqflag);
1010        pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
1011
1012        return 0;
1013}
1014
1015/* SIO{S,G}IWENCODE */
1016static int gelic_wl_set_encode(struct net_device *netdev,
1017                               struct iw_request_info *info,
1018                               union iwreq_data *data, char *extra)
1019{
1020        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1021        struct iw_point *enc = &data->encoding;
1022        __u16 flags;
1023        unsigned long irqflag;
1024        int key_index, index_specified;
1025        int ret = 0;
1026
1027        pr_debug("%s: <-\n", __func__);
1028        flags = enc->flags & IW_ENCODE_FLAGS;
1029        key_index = enc->flags & IW_ENCODE_INDEX;
1030
1031        pr_debug("%s: key_index = %d\n", __func__, key_index);
1032        pr_debug("%s: key_len = %d\n", __func__, enc->length);
1033        pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1034
1035        if (GELIC_WEP_KEYS < key_index)
1036                return -EINVAL;
1037
1038        spin_lock_irqsave(&wl->lock, irqflag);
1039        if (key_index) {
1040                index_specified = 1;
1041                key_index--;
1042        } else {
1043                index_specified = 0;
1044                key_index = wl->current_key;
1045        }
1046
1047        if (flags & IW_ENCODE_NOKEY) {
1048                /* if just IW_ENCODE_NOKEY, change current key index */
1049                if (!flags && index_specified) {
1050                        wl->current_key = key_index;
1051                        goto done;
1052                }
1053
1054                if (flags & IW_ENCODE_DISABLED) {
1055                        if (!index_specified) {
1056                                /* disable encryption */
1057                                wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1058                                wl->pairwise_cipher_method =
1059                                        GELIC_WL_CIPHER_NONE;
1060                                /* invalidate all key */
1061                                wl->key_enabled = 0;
1062                        } else
1063                                clear_bit(key_index, &wl->key_enabled);
1064                }
1065
1066                if (flags & IW_ENCODE_OPEN)
1067                        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1068                if (flags & IW_ENCODE_RESTRICTED) {
1069                        pr_info("%s: shared key mode enabled\n", __func__);
1070                        wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1071                }
1072        } else {
1073                if (IW_ENCODING_TOKEN_MAX < enc->length) {
1074                        ret = -EINVAL;
1075                        goto done;
1076                }
1077                wl->key_len[key_index] = enc->length;
1078                memcpy(wl->key[key_index], extra, enc->length);
1079                set_bit(key_index, &wl->key_enabled);
1080                wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1081                wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1082        }
1083        set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1084done:
1085        spin_unlock_irqrestore(&wl->lock, irqflag);
1086        pr_debug("%s: ->\n", __func__);
1087        return ret;
1088}
1089
1090static int gelic_wl_get_encode(struct net_device *netdev,
1091                               struct iw_request_info *info,
1092                               union iwreq_data *data, char *extra)
1093{
1094        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1095        struct iw_point *enc = &data->encoding;
1096        unsigned long irqflag;
1097        unsigned int key_index, index_specified;
1098        int ret = 0;
1099
1100        pr_debug("%s: <-\n", __func__);
1101        key_index = enc->flags & IW_ENCODE_INDEX;
1102        pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1103                 enc->flags, enc->pointer, enc->length, extra);
1104        if (GELIC_WEP_KEYS < key_index)
1105                return -EINVAL;
1106
1107        spin_lock_irqsave(&wl->lock, irqflag);
1108        if (key_index) {
1109                index_specified = 1;
1110                key_index--;
1111        } else {
1112                index_specified = 0;
1113                key_index = wl->current_key;
1114        }
1115
1116        if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1117                switch (wl->auth_method) {
1118                case GELIC_EURUS_AUTH_OPEN:
1119                        enc->flags = IW_ENCODE_OPEN;
1120                        break;
1121                case GELIC_EURUS_AUTH_SHARED:
1122                        enc->flags = IW_ENCODE_RESTRICTED;
1123                        break;
1124                }
1125        } else
1126                enc->flags = IW_ENCODE_DISABLED;
1127
1128        if (test_bit(key_index, &wl->key_enabled)) {
1129                if (enc->length < wl->key_len[key_index]) {
1130                        ret = -EINVAL;
1131                        goto done;
1132                }
1133                enc->length = wl->key_len[key_index];
1134                memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1135        } else {
1136                enc->length = 0;
1137                enc->flags |= IW_ENCODE_NOKEY;
1138        }
1139        enc->flags |= key_index + 1;
1140        pr_debug("%s: -> flag=%x len=%d\n", __func__,
1141                 enc->flags, enc->length);
1142
1143done:
1144        spin_unlock_irqrestore(&wl->lock, irqflag);
1145        return ret;
1146}
1147
1148/* SIOC{S,G}IWAP */
1149static int gelic_wl_set_ap(struct net_device *netdev,
1150                           struct iw_request_info *info,
1151                           union iwreq_data *data, char *extra)
1152{
1153        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1154        unsigned long irqflag;
1155
1156        pr_debug("%s: <-\n", __func__);
1157        if (data->ap_addr.sa_family != ARPHRD_ETHER)
1158                return -EINVAL;
1159
1160        spin_lock_irqsave(&wl->lock, irqflag);
1161        if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1162                memcpy(wl->bssid, data->ap_addr.sa_data,
1163                       ETH_ALEN);
1164                set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1165                set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1166                pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1167        } else {
1168                pr_debug("%s: clear bssid\n", __func__);
1169                clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1170                eth_zero_addr(wl->bssid);
1171        }
1172        spin_unlock_irqrestore(&wl->lock, irqflag);
1173        pr_debug("%s: ->\n", __func__);
1174        return 0;
1175}
1176
1177static int gelic_wl_get_ap(struct net_device *netdev,
1178                           struct iw_request_info *info,
1179                           union iwreq_data *data, char *extra)
1180{
1181        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1182        unsigned long irqflag;
1183
1184        pr_debug("%s: <-\n", __func__);
1185        mutex_lock(&wl->assoc_stat_lock);
1186        spin_lock_irqsave(&wl->lock, irqflag);
1187        if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1188                data->ap_addr.sa_family = ARPHRD_ETHER;
1189                memcpy(data->ap_addr.sa_data, wl->active_bssid,
1190                       ETH_ALEN);
1191        } else
1192                eth_zero_addr(data->ap_addr.sa_data);
1193
1194        spin_unlock_irqrestore(&wl->lock, irqflag);
1195        mutex_unlock(&wl->assoc_stat_lock);
1196        pr_debug("%s: ->\n", __func__);
1197        return 0;
1198}
1199
1200/* SIOC{S,G}IWENCODEEXT */
1201static int gelic_wl_set_encodeext(struct net_device *netdev,
1202                                  struct iw_request_info *info,
1203                                  union iwreq_data *data, char *extra)
1204{
1205        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1206        struct iw_point *enc = &data->encoding;
1207        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1208        __u16 alg;
1209        __u16 flags;
1210        unsigned long irqflag;
1211        int key_index;
1212        int ret = 0;
1213
1214        pr_debug("%s: <-\n", __func__);
1215        flags = enc->flags & IW_ENCODE_FLAGS;
1216        alg = ext->alg;
1217        key_index = enc->flags & IW_ENCODE_INDEX;
1218
1219        pr_debug("%s: key_index = %d\n", __func__, key_index);
1220        pr_debug("%s: key_len = %d\n", __func__, enc->length);
1221        pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1222        pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1223        pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1224
1225        if (GELIC_WEP_KEYS < key_index)
1226                return -EINVAL;
1227
1228        spin_lock_irqsave(&wl->lock, irqflag);
1229        if (key_index)
1230                key_index--;
1231        else
1232                key_index = wl->current_key;
1233
1234        if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1235                /* reques to change default key index */
1236                pr_debug("%s: request to change default key to %d\n",
1237                         __func__, key_index);
1238                wl->current_key = key_index;
1239                goto done;
1240        }
1241
1242        if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1243                pr_debug("%s: alg disabled\n", __func__);
1244                wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1245                wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1246                wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1247                wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1248        } else if (alg == IW_ENCODE_ALG_WEP) {
1249                pr_debug("%s: WEP requested\n", __func__);
1250                if (flags & IW_ENCODE_OPEN) {
1251                        pr_debug("%s: open key mode\n", __func__);
1252                        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1253                }
1254                if (flags & IW_ENCODE_RESTRICTED) {
1255                        pr_debug("%s: shared key mode\n", __func__);
1256                        wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1257                }
1258                if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1259                        pr_info("%s: key is too long %d\n", __func__,
1260                                ext->key_len);
1261                        ret = -EINVAL;
1262                        goto done;
1263                }
1264                /* OK, update the key */
1265                wl->key_len[key_index] = ext->key_len;
1266                memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1267                memcpy(wl->key[key_index], ext->key, ext->key_len);
1268                set_bit(key_index, &wl->key_enabled);
1269                /* remember wep info changed */
1270                set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1271        } else if (alg == IW_ENCODE_ALG_PMK) {
1272                if (ext->key_len != WPA_PSK_LEN) {
1273                        pr_err("%s: PSK length wrong %d\n", __func__,
1274                               ext->key_len);
1275                        ret = -EINVAL;
1276                        goto done;
1277                }
1278                memset(wl->psk, 0, sizeof(wl->psk));
1279                memcpy(wl->psk, ext->key, ext->key_len);
1280                wl->psk_len = ext->key_len;
1281                wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1282                /* remember PSK configured */
1283                set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1284        }
1285done:
1286        spin_unlock_irqrestore(&wl->lock, irqflag);
1287        pr_debug("%s: ->\n", __func__);
1288        return ret;
1289}
1290
1291static int gelic_wl_get_encodeext(struct net_device *netdev,
1292                                  struct iw_request_info *info,
1293                                  union iwreq_data *data, char *extra)
1294{
1295        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1296        struct iw_point *enc = &data->encoding;
1297        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1298        unsigned long irqflag;
1299        int key_index;
1300        int ret = 0;
1301        int max_key_len;
1302
1303        pr_debug("%s: <-\n", __func__);
1304
1305        max_key_len = enc->length - sizeof(struct iw_encode_ext);
1306        if (max_key_len < 0)
1307                return -EINVAL;
1308        key_index = enc->flags & IW_ENCODE_INDEX;
1309
1310        pr_debug("%s: key_index = %d\n", __func__, key_index);
1311        pr_debug("%s: key_len = %d\n", __func__, enc->length);
1312        pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1313
1314        if (GELIC_WEP_KEYS < key_index)
1315                return -EINVAL;
1316
1317        spin_lock_irqsave(&wl->lock, irqflag);
1318        if (key_index)
1319                key_index--;
1320        else
1321                key_index = wl->current_key;
1322
1323        memset(ext, 0, sizeof(struct iw_encode_ext));
1324        switch (wl->group_cipher_method) {
1325        case GELIC_WL_CIPHER_WEP:
1326                ext->alg = IW_ENCODE_ALG_WEP;
1327                enc->flags |= IW_ENCODE_ENABLED;
1328                break;
1329        case GELIC_WL_CIPHER_TKIP:
1330                ext->alg = IW_ENCODE_ALG_TKIP;
1331                enc->flags |= IW_ENCODE_ENABLED;
1332                break;
1333        case GELIC_WL_CIPHER_AES:
1334                ext->alg = IW_ENCODE_ALG_CCMP;
1335                enc->flags |= IW_ENCODE_ENABLED;
1336                break;
1337        case GELIC_WL_CIPHER_NONE:
1338        default:
1339                ext->alg = IW_ENCODE_ALG_NONE;
1340                enc->flags |= IW_ENCODE_NOKEY;
1341                break;
1342        }
1343
1344        if (!(enc->flags & IW_ENCODE_NOKEY)) {
1345                if (max_key_len < wl->key_len[key_index]) {
1346                        ret = -E2BIG;
1347                        goto out;
1348                }
1349                if (test_bit(key_index, &wl->key_enabled))
1350                        memcpy(ext->key, wl->key[key_index],
1351                               wl->key_len[key_index]);
1352                else
1353                        pr_debug("%s: disabled key requested ix=%d\n",
1354                                 __func__, key_index);
1355        }
1356out:
1357        spin_unlock_irqrestore(&wl->lock, irqflag);
1358        pr_debug("%s: ->\n", __func__);
1359        return ret;
1360}
1361/* SIOC{S,G}IWMODE */
1362static int gelic_wl_set_mode(struct net_device *netdev,
1363                             struct iw_request_info *info,
1364                             union iwreq_data *data, char *extra)
1365{
1366        __u32 mode = data->mode;
1367        int ret;
1368
1369        pr_debug("%s: <-\n", __func__);
1370        if (mode == IW_MODE_INFRA)
1371                ret = 0;
1372        else
1373                ret = -EOPNOTSUPP;
1374        pr_debug("%s: -> %d\n", __func__, ret);
1375        return ret;
1376}
1377
1378static int gelic_wl_get_mode(struct net_device *netdev,
1379                             struct iw_request_info *info,
1380                             union iwreq_data *data, char *extra)
1381{
1382        __u32 *mode = &data->mode;
1383        pr_debug("%s: <-\n", __func__);
1384        *mode = IW_MODE_INFRA;
1385        pr_debug("%s: ->\n", __func__);
1386        return 0;
1387}
1388
1389/* SIOCGIWNICKN */
1390static int gelic_wl_get_nick(struct net_device *net_dev,
1391                                  struct iw_request_info *info,
1392                                  union iwreq_data *data, char *extra)
1393{
1394        strcpy(extra, "gelic_wl");
1395        data->data.length = strlen(extra);
1396        data->data.flags = 1;
1397        return 0;
1398}
1399
1400
1401/* --- */
1402
1403static struct iw_statistics *gelic_wl_get_wireless_stats(
1404        struct net_device *netdev)
1405{
1406
1407        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1408        struct gelic_eurus_cmd *cmd;
1409        struct iw_statistics *is;
1410        struct gelic_eurus_rssi_info *rssi;
1411        void *buf;
1412
1413        pr_debug("%s: <-\n", __func__);
1414
1415        buf = (void *)__get_free_page(GFP_KERNEL);
1416        if (!buf)
1417                return NULL;
1418
1419        is = &wl->iwstat;
1420        memset(is, 0, sizeof(*is));
1421        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1422                                   buf, sizeof(*rssi));
1423        if (cmd && !cmd->status && !cmd->cmd_status) {
1424                rssi = buf;
1425                is->qual.level = be16_to_cpu(rssi->rssi);
1426                is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1427                        IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1428        } else
1429                /* not associated */
1430                is->qual.updated = IW_QUAL_ALL_INVALID;
1431
1432        kfree(cmd);
1433        free_page((unsigned long)buf);
1434        pr_debug("%s: ->\n", __func__);
1435        return is;
1436}
1437
1438/*
1439 *  scanning helpers
1440 */
1441static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1442                               u8 *essid, size_t essid_len)
1443{
1444        struct gelic_eurus_cmd *cmd;
1445        int ret = 0;
1446        void *buf = NULL;
1447        size_t len;
1448
1449        pr_debug("%s: <- always=%d\n", __func__, always_scan);
1450        if (mutex_lock_interruptible(&wl->scan_lock))
1451                return -ERESTARTSYS;
1452
1453        /*
1454         * If already a scan in progress, do not trigger more
1455         */
1456        if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1457                pr_debug("%s: scanning now\n", __func__);
1458                goto out;
1459        }
1460
1461        init_completion(&wl->scan_done);
1462        /*
1463         * If we have already a bss list, don't try to get new
1464         * unless we are doing an ESSID scan
1465         */
1466        if ((!essid_len && !always_scan)
1467            && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1468                pr_debug("%s: already has the list\n", __func__);
1469                complete(&wl->scan_done);
1470                goto out;
1471        }
1472
1473        /* ESSID scan ? */
1474        if (essid_len && essid) {
1475                buf = (void *)__get_free_page(GFP_KERNEL);
1476                if (!buf) {
1477                        ret = -ENOMEM;
1478                        goto out;
1479                }
1480                len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1481                memset(buf, 0, len);
1482                memcpy(buf, essid, essid_len);
1483                pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1484        } else
1485                len = 0;
1486
1487        /*
1488         * issue start scan request
1489         */
1490        wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1491        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1492                                   buf, len);
1493        if (!cmd || cmd->status || cmd->cmd_status) {
1494                wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1495                complete(&wl->scan_done);
1496                ret = -ENOMEM;
1497                goto out;
1498        }
1499        kfree(cmd);
1500out:
1501        free_page((unsigned long)buf);
1502        mutex_unlock(&wl->scan_lock);
1503        pr_debug("%s: ->\n", __func__);
1504        return ret;
1505}
1506
1507/*
1508 * retrieve scan result from the chip (hypervisor)
1509 * this function is invoked by schedule work.
1510 */
1511static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1512{
1513        struct gelic_eurus_cmd *cmd = NULL;
1514        struct gelic_wl_scan_info *target, *tmp;
1515        struct gelic_wl_scan_info *oldest = NULL;
1516        struct gelic_eurus_scan_info *scan_info;
1517        unsigned int scan_info_size;
1518        union iwreq_data data;
1519        unsigned long this_time = jiffies;
1520        unsigned int data_len, i, found, r;
1521        void *buf;
1522
1523        pr_debug("%s:start\n", __func__);
1524        mutex_lock(&wl->scan_lock);
1525
1526        buf = (void *)__get_free_page(GFP_KERNEL);
1527        if (!buf) {
1528                pr_info("%s: scan buffer alloc failed\n", __func__);
1529                goto out;
1530        }
1531
1532        if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1533                /*
1534                 * stop() may be called while scanning, ignore result
1535                 */
1536                pr_debug("%s: scan complete when stat != scanning(%d)\n",
1537                         __func__, wl->scan_stat);
1538                goto out;
1539        }
1540
1541        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1542                                   buf, PAGE_SIZE);
1543        if (!cmd || cmd->status || cmd->cmd_status) {
1544                wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1545                pr_info("%s:cmd failed\n", __func__);
1546                kfree(cmd);
1547                goto out;
1548        }
1549        data_len = cmd->size;
1550        pr_debug("%s: data_len = %d\n", __func__, data_len);
1551        kfree(cmd);
1552
1553        /* OK, bss list retrieved */
1554        wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1555
1556        /* mark all entries are old */
1557        list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1558                target->valid = 0;
1559                /* expire too old entries */
1560                if (time_before(target->last_scanned + wl->scan_age,
1561                                this_time)) {
1562                        kfree(target->hwinfo);
1563                        target->hwinfo = NULL;
1564                        list_move_tail(&target->list, &wl->network_free_list);
1565                }
1566        }
1567
1568        /* put them in the network_list */
1569        for (i = 0, scan_info_size = 0, scan_info = buf;
1570             scan_info_size < data_len;
1571             i++, scan_info_size += be16_to_cpu(scan_info->size),
1572             scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1573                pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1574                         be16_to_cpu(scan_info->size),
1575                         &scan_info->bssid[2], scan_info);
1576
1577                /*
1578                 * The wireless firmware may return invalid channel 0 and/or
1579                 * invalid rate if the AP emits zero length SSID ie. As this
1580                 * scan information is useless, ignore it
1581                 */
1582                if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1583                        pr_debug("%s: invalid scan info\n", __func__);
1584                        continue;
1585                }
1586
1587                found = 0;
1588                oldest = NULL;
1589                list_for_each_entry(target, &wl->network_list, list) {
1590                        if (ether_addr_equal(&target->hwinfo->bssid[2],
1591                                             &scan_info->bssid[2])) {
1592                                found = 1;
1593                                pr_debug("%s: same BBS found scanned list\n",
1594                                         __func__);
1595                                break;
1596                        }
1597                        if (!oldest ||
1598                            (target->last_scanned < oldest->last_scanned))
1599                                oldest = target;
1600                }
1601
1602                if (!found) {
1603                        /* not found in the list */
1604                        if (list_empty(&wl->network_free_list)) {
1605                                /* expire oldest */
1606                                target = oldest;
1607                        } else {
1608                                target = list_entry(wl->network_free_list.next,
1609                                                    struct gelic_wl_scan_info,
1610                                                    list);
1611                        }
1612                }
1613
1614                /* update the item */
1615                target->last_scanned = this_time;
1616                target->valid = 1;
1617                target->eurus_index = i;
1618                kfree(target->hwinfo);
1619                target->hwinfo = kmemdup(scan_info,
1620                                         be16_to_cpu(scan_info->size),
1621                                         GFP_KERNEL);
1622                if (!target->hwinfo)
1623                        continue;
1624
1625                /* copy hw scan info */
1626                target->essid_len = strnlen(scan_info->essid,
1627                                            sizeof(scan_info->essid));
1628                target->rate_len = 0;
1629                for (r = 0; r < 12; r++)
1630                        if (scan_info->rate[r])
1631                                target->rate_len++;
1632                if (8 < target->rate_len)
1633                        pr_info("%s: AP returns %d rates\n", __func__,
1634                                target->rate_len);
1635                target->rate_ext_len = 0;
1636                for (r = 0; r < 16; r++)
1637                        if (scan_info->ext_rate[r])
1638                                target->rate_ext_len++;
1639                list_move_tail(&target->list, &wl->network_list);
1640        }
1641        memset(&data, 0, sizeof(data));
1642        wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1643                            NULL);
1644out:
1645        free_page((unsigned long)buf);
1646        complete(&wl->scan_done);
1647        mutex_unlock(&wl->scan_lock);
1648        pr_debug("%s:end\n", __func__);
1649}
1650
1651/*
1652 * Select an appropriate bss from current scan list regarding
1653 * current settings from userspace.
1654 * The caller must hold wl->scan_lock,
1655 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1656 */
1657static void update_best(struct gelic_wl_scan_info **best,
1658                        struct gelic_wl_scan_info *candid,
1659                        int *best_weight,
1660                        int *weight)
1661{
1662        if (*best_weight < ++(*weight)) {
1663                *best_weight = *weight;
1664                *best = candid;
1665        }
1666}
1667
1668static
1669struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1670{
1671        struct gelic_wl_scan_info *scan_info;
1672        struct gelic_wl_scan_info *best_bss;
1673        int weight, best_weight;
1674        u16 security;
1675
1676        pr_debug("%s: <-\n", __func__);
1677
1678        best_bss = NULL;
1679        best_weight = 0;
1680
1681        list_for_each_entry(scan_info, &wl->network_list, list) {
1682                pr_debug("%s: station %p\n", __func__, scan_info);
1683
1684                if (!scan_info->valid) {
1685                        pr_debug("%s: station invalid\n", __func__);
1686                        continue;
1687                }
1688
1689                /* If bss specified, check it only */
1690                if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1691                        if (ether_addr_equal(&scan_info->hwinfo->bssid[2],
1692                                             wl->bssid)) {
1693                                best_bss = scan_info;
1694                                pr_debug("%s: bssid matched\n", __func__);
1695                                break;
1696                        } else {
1697                                pr_debug("%s: bssid unmatched\n", __func__);
1698                                continue;
1699                        }
1700                }
1701
1702                weight = 0;
1703
1704                /* security */
1705                security = be16_to_cpu(scan_info->hwinfo->security) &
1706                        GELIC_EURUS_SCAN_SEC_MASK;
1707                if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1708                        if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1709                                update_best(&best_bss, scan_info,
1710                                            &best_weight, &weight);
1711                        else
1712                                continue;
1713                } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1714                        if (security == GELIC_EURUS_SCAN_SEC_WPA)
1715                                update_best(&best_bss, scan_info,
1716                                            &best_weight, &weight);
1717                        else
1718                                continue;
1719                } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1720                           wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1721                        if (security == GELIC_EURUS_SCAN_SEC_WEP)
1722                                update_best(&best_bss, scan_info,
1723                                            &best_weight, &weight);
1724                        else
1725                                continue;
1726                }
1727
1728                /* If ESSID is set, check it */
1729                if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1730                        if ((scan_info->essid_len == wl->essid_len) &&
1731                            !strncmp(wl->essid,
1732                                     scan_info->hwinfo->essid,
1733                                     scan_info->essid_len))
1734                                update_best(&best_bss, scan_info,
1735                                            &best_weight, &weight);
1736                        else
1737                                continue;
1738                }
1739        }
1740
1741#ifdef DEBUG
1742        pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1743        if (best_bss) {
1744                pr_debug("%s:addr=%pM\n", __func__,
1745                         &best_bss->hwinfo->bssid[2]);
1746        }
1747#endif
1748        return best_bss;
1749}
1750
1751/*
1752 * Setup WEP configuration to the chip
1753 * The caller must hold wl->scan_lock,
1754 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1755 */
1756static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1757{
1758        unsigned int i;
1759        struct gelic_eurus_wep_cfg *wep;
1760        struct gelic_eurus_cmd *cmd;
1761        int wep104 = 0;
1762        int have_key = 0;
1763        int ret = 0;
1764
1765        pr_debug("%s: <-\n", __func__);
1766        /* we can assume no one should uses the buffer */
1767        wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1768        if (!wep)
1769                return -ENOMEM;
1770
1771        memset(wep, 0, sizeof(*wep));
1772
1773        if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1774                pr_debug("%s: WEP mode\n", __func__);
1775                for (i = 0; i < GELIC_WEP_KEYS; i++) {
1776                        if (!test_bit(i, &wl->key_enabled))
1777                                continue;
1778
1779                        pr_debug("%s: key#%d enabled\n", __func__, i);
1780                        have_key = 1;
1781                        if (wl->key_len[i] == 13)
1782                                wep104 = 1;
1783                        else if (wl->key_len[i] != 5) {
1784                                pr_info("%s: wrong wep key[%d]=%d\n",
1785                                        __func__, i, wl->key_len[i]);
1786                                ret = -EINVAL;
1787                                goto out;
1788                        }
1789                        memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1790                }
1791
1792                if (!have_key) {
1793                        pr_info("%s: all wep key disabled\n", __func__);
1794                        ret = -EINVAL;
1795                        goto out;
1796                }
1797
1798                if (wep104) {
1799                        pr_debug("%s: 104bit key\n", __func__);
1800                        wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1801                } else {
1802                        pr_debug("%s: 40bit key\n", __func__);
1803                        wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1804                }
1805        } else {
1806                pr_debug("%s: NO encryption\n", __func__);
1807                wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1808        }
1809
1810        /* issue wep setup */
1811        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1812                                   wep, sizeof(*wep));
1813        if (!cmd)
1814                ret = -ENOMEM;
1815        else if (cmd->status || cmd->cmd_status)
1816                ret = -ENXIO;
1817
1818        kfree(cmd);
1819out:
1820        free_page((unsigned long)wep);
1821        pr_debug("%s: ->\n", __func__);
1822        return ret;
1823}
1824
1825#ifdef DEBUG
1826static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1827{
1828        switch (sec) {
1829        case GELIC_EURUS_WPA_SEC_NONE:
1830                return "NONE";
1831        case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1832                return "WPA_TKIP_TKIP";
1833        case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1834                return "WPA_TKIP_AES";
1835        case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1836                return "WPA_AES_AES";
1837        case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1838                return "WPA2_TKIP_TKIP";
1839        case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1840                return "WPA2_TKIP_AES";
1841        case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1842                return "WPA2_AES_AES";
1843        }
1844        return "";
1845};
1846#endif
1847
1848static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1849{
1850        struct gelic_eurus_wpa_cfg *wpa;
1851        struct gelic_eurus_cmd *cmd;
1852        u16 security;
1853        int ret = 0;
1854
1855        pr_debug("%s: <-\n", __func__);
1856        /* we can assume no one should uses the buffer */
1857        wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1858        if (!wpa)
1859                return -ENOMEM;
1860
1861        memset(wpa, 0, sizeof(*wpa));
1862
1863        if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1864                pr_info("%s: PSK not configured yet\n", __func__);
1865
1866        /* copy key */
1867        memcpy(wpa->psk, wl->psk, wl->psk_len);
1868
1869        /* set security level */
1870        if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1871                if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1872                        security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1873                } else {
1874                        if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1875                            precise_ie())
1876                                security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1877                        else
1878                                security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1879                }
1880        } else {
1881                if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1882                        security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1883                } else {
1884                        if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1885                            precise_ie())
1886                                security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1887                        else
1888                                security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1889                }
1890        }
1891        wpa->security = cpu_to_be16(security);
1892
1893        /* PSK type */
1894        wpa->psk_type = cpu_to_be16(wl->psk_type);
1895#ifdef DEBUG
1896        pr_debug("%s: sec=%s psktype=%s\n", __func__,
1897                 wpasecstr(wpa->security),
1898                 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1899                 "BIN" : "passphrase");
1900#if 0
1901        /*
1902         * don't enable here if you plan to submit
1903         * the debug log because this dumps your precious
1904         * passphrase/key.
1905         */
1906        pr_debug("%s: psk=%s\n", __func__,
1907                 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1908                 "N/A" : wpa->psk);
1909#endif
1910#endif
1911        /* issue wpa setup */
1912        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1913                                   wpa, sizeof(*wpa));
1914        if (!cmd)
1915                ret = -ENOMEM;
1916        else if (cmd->status || cmd->cmd_status)
1917                ret = -ENXIO;
1918        kfree(cmd);
1919        free_page((unsigned long)wpa);
1920        pr_debug("%s: --> %d\n", __func__, ret);
1921        return ret;
1922}
1923
1924/*
1925 * Start association. caller must hold assoc_stat_lock
1926 */
1927static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1928                                  struct gelic_wl_scan_info *bss)
1929{
1930        struct gelic_eurus_cmd *cmd;
1931        struct gelic_eurus_common_cfg *common;
1932        int ret = 0;
1933        unsigned long rc;
1934
1935        pr_debug("%s: <-\n", __func__);
1936
1937        /* do common config */
1938        common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1939        if (!common)
1940                return -ENOMEM;
1941
1942        memset(common, 0, sizeof(*common));
1943        common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1944        common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1945
1946        common->scan_index = cpu_to_be16(bss->eurus_index);
1947        switch (wl->auth_method) {
1948        case GELIC_EURUS_AUTH_OPEN:
1949                common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1950                break;
1951        case GELIC_EURUS_AUTH_SHARED:
1952                common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1953                break;
1954        }
1955
1956#ifdef DEBUG
1957        scan_list_dump(wl);
1958#endif
1959        pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1960                 be16_to_cpu(common->scan_index),
1961                 be16_to_cpu(common->bss_type),
1962                 be16_to_cpu(common->auth_method));
1963
1964        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1965                                   common, sizeof(*common));
1966        if (!cmd || cmd->status || cmd->cmd_status) {
1967                ret = -ENOMEM;
1968                kfree(cmd);
1969                goto out;
1970        }
1971        kfree(cmd);
1972
1973        /* WEP/WPA */
1974        switch (wl->wpa_level) {
1975        case GELIC_WL_WPA_LEVEL_NONE:
1976                /* If WEP or no security, setup WEP config */
1977                ret = gelic_wl_do_wep_setup(wl);
1978                break;
1979        case GELIC_WL_WPA_LEVEL_WPA:
1980        case GELIC_WL_WPA_LEVEL_WPA2:
1981                ret = gelic_wl_do_wpa_setup(wl);
1982                break;
1983        }
1984
1985        if (ret) {
1986                pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1987                         ret);
1988                ret = -EPERM;
1989                gelic_wl_send_iwap_event(wl, NULL);
1990                goto out;
1991        }
1992
1993        /* start association */
1994        init_completion(&wl->assoc_done);
1995        wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
1996        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
1997                                   NULL, 0);
1998        if (!cmd || cmd->status || cmd->cmd_status) {
1999                pr_debug("%s: assoc request failed\n", __func__);
2000                wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2001                kfree(cmd);
2002                ret = -ENOMEM;
2003                gelic_wl_send_iwap_event(wl, NULL);
2004                goto out;
2005        }
2006        kfree(cmd);
2007
2008        /* wait for connected event */
2009        rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2010
2011        if (!rc) {
2012                /* timeouted.  Maybe key or cyrpt mode is wrong */
2013                pr_info("%s: connect timeout\n", __func__);
2014                cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2015                                           NULL, 0);
2016                kfree(cmd);
2017                wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2018                gelic_wl_send_iwap_event(wl, NULL);
2019                ret = -ENXIO;
2020        } else {
2021                wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2022                /* copy bssid */
2023                memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2024
2025                /* send connect event */
2026                gelic_wl_send_iwap_event(wl, wl->active_bssid);
2027                pr_info("%s: connected\n", __func__);
2028        }
2029out:
2030        free_page((unsigned long)common);
2031        pr_debug("%s: ->\n", __func__);
2032        return ret;
2033}
2034
2035/*
2036 * connected event
2037 */
2038static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2039                                     u64 event)
2040{
2041        u64 desired_event = 0;
2042
2043        switch (wl->wpa_level) {
2044        case GELIC_WL_WPA_LEVEL_NONE:
2045                desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2046                break;
2047        case GELIC_WL_WPA_LEVEL_WPA:
2048        case GELIC_WL_WPA_LEVEL_WPA2:
2049                desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2050                break;
2051        }
2052
2053        if (desired_event == event) {
2054                pr_debug("%s: completed\n", __func__);
2055                complete(&wl->assoc_done);
2056                netif_carrier_on(port_to_netdev(wl_port(wl)));
2057        } else
2058                pr_debug("%s: event %#llx under wpa\n",
2059                                 __func__, event);
2060}
2061
2062/*
2063 * disconnect event
2064 */
2065static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2066                                      u64 event)
2067{
2068        struct gelic_eurus_cmd *cmd;
2069        int lock;
2070
2071        /*
2072         * If we fall here in the middle of association,
2073         * associate_bss() should be waiting for complation of
2074         * wl->assoc_done.
2075         * As it waits with timeout, just leave assoc_done
2076         * uncompleted, then it terminates with timeout
2077         */
2078        if (!mutex_trylock(&wl->assoc_stat_lock)) {
2079                pr_debug("%s: already locked\n", __func__);
2080                lock = 0;
2081        } else {
2082                pr_debug("%s: obtain lock\n", __func__);
2083                lock = 1;
2084        }
2085
2086        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2087        kfree(cmd);
2088
2089        /* send disconnected event to the supplicant */
2090        if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2091                gelic_wl_send_iwap_event(wl, NULL);
2092
2093        wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2094        netif_carrier_off(port_to_netdev(wl_port(wl)));
2095
2096        if (lock)
2097                mutex_unlock(&wl->assoc_stat_lock);
2098}
2099/*
2100 * event worker
2101 */
2102#ifdef DEBUG
2103static const char *eventstr(enum gelic_lv1_wl_event event)
2104{
2105        static char buf[32];
2106        char *ret;
2107        if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2108                ret = "EURUS_READY";
2109        else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2110                ret = "SCAN_COMPLETED";
2111        else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2112                ret = "DEAUTH";
2113        else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2114                ret = "BEACON_LOST";
2115        else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2116                ret = "CONNECTED";
2117        else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2118                ret = "WPA_CONNECTED";
2119        else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2120                ret = "WPA_ERROR";
2121        else {
2122                sprintf(buf, "Unknown(%#x)", event);
2123                ret = buf;
2124        }
2125        return ret;
2126}
2127#else
2128static const char *eventstr(enum gelic_lv1_wl_event event)
2129{
2130        return NULL;
2131}
2132#endif
2133static void gelic_wl_event_worker(struct work_struct *work)
2134{
2135        struct gelic_wl_info *wl;
2136        struct gelic_port *port;
2137        u64 event, tmp;
2138        int status;
2139
2140        pr_debug("%s:start\n", __func__);
2141        wl = container_of(work, struct gelic_wl_info, event_work.work);
2142        port = wl_port(wl);
2143        while (1) {
2144                status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2145                                         GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2146                                         &event, &tmp);
2147                if (status) {
2148                        if (status != LV1_NO_ENTRY)
2149                                pr_debug("%s:wlan event failed %d\n",
2150                                         __func__, status);
2151                        /* got all events */
2152                        pr_debug("%s:end\n", __func__);
2153                        return;
2154                }
2155                pr_debug("%s: event=%s\n", __func__, eventstr(event));
2156                switch (event) {
2157                case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2158                        gelic_wl_scan_complete_event(wl);
2159                        break;
2160                case GELIC_LV1_WL_EVENT_BEACON_LOST:
2161                case GELIC_LV1_WL_EVENT_DEAUTH:
2162                        gelic_wl_disconnect_event(wl, event);
2163                        break;
2164                case GELIC_LV1_WL_EVENT_CONNECTED:
2165                case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2166                        gelic_wl_connected_event(wl, event);
2167                        break;
2168                default:
2169                        break;
2170                }
2171        } /* while */
2172}
2173/*
2174 * association worker
2175 */
2176static void gelic_wl_assoc_worker(struct work_struct *work)
2177{
2178        struct gelic_wl_info *wl;
2179
2180        struct gelic_wl_scan_info *best_bss;
2181        int ret;
2182        unsigned long irqflag;
2183        u8 *essid;
2184        size_t essid_len;
2185
2186        wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2187
2188        mutex_lock(&wl->assoc_stat_lock);
2189
2190        if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2191                goto out;
2192
2193        spin_lock_irqsave(&wl->lock, irqflag);
2194        if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2195                pr_debug("%s: assoc ESSID configured %s\n", __func__,
2196                         wl->essid);
2197                essid = wl->essid;
2198                essid_len = wl->essid_len;
2199        } else {
2200                essid = NULL;
2201                essid_len = 0;
2202        }
2203        spin_unlock_irqrestore(&wl->lock, irqflag);
2204
2205        ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2206        if (ret == -ERESTARTSYS) {
2207                pr_debug("%s: scan start failed association\n", __func__);
2208                schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2209                goto out;
2210        } else if (ret) {
2211                pr_info("%s: scan prerequisite failed\n", __func__);
2212                goto out;
2213        }
2214
2215        /*
2216         * Wait for bss scan completion
2217         * If we have scan list already, gelic_wl_start_scan()
2218         * returns OK and raises the complete.  Thus,
2219         * it's ok to wait unconditionally here
2220         */
2221        wait_for_completion(&wl->scan_done);
2222
2223        pr_debug("%s: scan done\n", __func__);
2224        mutex_lock(&wl->scan_lock);
2225        if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2226                gelic_wl_send_iwap_event(wl, NULL);
2227                pr_info("%s: no scan list. association failed\n", __func__);
2228                goto scan_lock_out;
2229        }
2230
2231        /* find best matching bss */
2232        best_bss = gelic_wl_find_best_bss(wl);
2233        if (!best_bss) {
2234                gelic_wl_send_iwap_event(wl, NULL);
2235                pr_info("%s: no bss matched. association failed\n", __func__);
2236                goto scan_lock_out;
2237        }
2238
2239        /* ok, do association */
2240        ret = gelic_wl_associate_bss(wl, best_bss);
2241        if (ret)
2242                pr_info("%s: association failed %d\n", __func__, ret);
2243scan_lock_out:
2244        mutex_unlock(&wl->scan_lock);
2245out:
2246        mutex_unlock(&wl->assoc_stat_lock);
2247}
2248/*
2249 * Interrupt handler
2250 * Called from the ethernet interrupt handler
2251 * Processes wireless specific virtual interrupts only
2252 */
2253void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2254{
2255        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2256
2257        if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2258                pr_debug("%s:cmd complete\n", __func__);
2259                complete(&wl->cmd_done_intr);
2260        }
2261
2262        if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2263                pr_debug("%s:event received\n", __func__);
2264                queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2265        }
2266}
2267
2268/*
2269 * driver helpers
2270 */
2271static const iw_handler gelic_wl_wext_handler[] =
2272{
2273        IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2274        IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2275        IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2276        IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2277        IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2278        IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2279        IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2280        IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2281        IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2282        IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2283        IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2284        IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2285        IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2286        IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2287        IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2288        IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2289        IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2290};
2291
2292static const struct iw_handler_def gelic_wl_wext_handler_def = {
2293        .num_standard           = ARRAY_SIZE(gelic_wl_wext_handler),
2294        .standard               = gelic_wl_wext_handler,
2295        .get_wireless_stats     = gelic_wl_get_wireless_stats,
2296};
2297
2298static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2299{
2300        struct net_device *netdev;
2301        struct gelic_port *port;
2302        struct gelic_wl_info *wl;
2303        unsigned int i;
2304
2305        pr_debug("%s:start\n", __func__);
2306        netdev = alloc_etherdev(sizeof(struct gelic_port) +
2307                                sizeof(struct gelic_wl_info));
2308        pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2309        if (!netdev)
2310                return NULL;
2311
2312        strcpy(netdev->name, "wlan%d");
2313
2314        port = netdev_priv(netdev);
2315        port->netdev = netdev;
2316        port->card = card;
2317        port->type = GELIC_PORT_WIRELESS;
2318
2319        wl = port_wl(port);
2320        pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2321
2322        /* allocate scan list */
2323        wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2324                               GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2325
2326        if (!wl->networks)
2327                goto fail_bss;
2328
2329        wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2330        if (!wl->eurus_cmd_queue)
2331                goto fail_cmd_workqueue;
2332
2333        wl->event_queue = create_singlethread_workqueue("gelic_event");
2334        if (!wl->event_queue)
2335                goto fail_event_workqueue;
2336
2337        INIT_LIST_HEAD(&wl->network_free_list);
2338        INIT_LIST_HEAD(&wl->network_list);
2339        for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2340                list_add_tail(&wl->networks[i].list,
2341                              &wl->network_free_list);
2342        init_completion(&wl->cmd_done_intr);
2343
2344        INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2345        INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2346        mutex_init(&wl->scan_lock);
2347        mutex_init(&wl->assoc_stat_lock);
2348
2349        init_completion(&wl->scan_done);
2350        /* for the case that no scan request is issued and stop() is called */
2351        complete(&wl->scan_done);
2352
2353        spin_lock_init(&wl->lock);
2354
2355        wl->scan_age = 5*HZ; /* FIXME */
2356
2357        /* buffer for receiving scanned list etc */
2358        BUILD_BUG_ON(PAGE_SIZE <
2359                     sizeof(struct gelic_eurus_scan_info) *
2360                     GELIC_EURUS_MAX_SCAN);
2361        pr_debug("%s:end\n", __func__);
2362        return netdev;
2363
2364fail_event_workqueue:
2365        destroy_workqueue(wl->eurus_cmd_queue);
2366fail_cmd_workqueue:
2367        kfree(wl->networks);
2368fail_bss:
2369        free_netdev(netdev);
2370        pr_debug("%s:end error\n", __func__);
2371        return NULL;
2372
2373}
2374
2375static void gelic_wl_free(struct gelic_wl_info *wl)
2376{
2377        struct gelic_wl_scan_info *scan_info;
2378        unsigned int i;
2379
2380        pr_debug("%s: <-\n", __func__);
2381
2382        pr_debug("%s: destroy queues\n", __func__);
2383        destroy_workqueue(wl->eurus_cmd_queue);
2384        destroy_workqueue(wl->event_queue);
2385
2386        scan_info = wl->networks;
2387        for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2388                kfree(scan_info->hwinfo);
2389        kfree(wl->networks);
2390
2391        free_netdev(port_to_netdev(wl_port(wl)));
2392
2393        pr_debug("%s: ->\n", __func__);
2394}
2395
2396static int gelic_wl_try_associate(struct net_device *netdev)
2397{
2398        struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2399        int ret = -1;
2400        unsigned int i;
2401
2402        pr_debug("%s: <-\n", __func__);
2403
2404        /* check constraits for start association */
2405        /* for no access restriction AP */
2406        if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2407                if (test_bit(GELIC_WL_STAT_CONFIGURED,
2408                             &wl->stat))
2409                        goto do_associate;
2410                else {
2411                        pr_debug("%s: no wep, not configured\n", __func__);
2412                        return ret;
2413                }
2414        }
2415
2416        /* for WEP, one of four keys should be set */
2417        if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2418                /* one of keys set */
2419                for (i = 0; i < GELIC_WEP_KEYS; i++) {
2420                        if (test_bit(i, &wl->key_enabled))
2421                            goto do_associate;
2422                }
2423                pr_debug("%s: WEP, but no key specified\n", __func__);
2424                return ret;
2425        }
2426
2427        /* for WPA[2], psk should be set */
2428        if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2429            (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2430                if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2431                             &wl->stat))
2432                        goto do_associate;
2433                else {
2434                        pr_debug("%s: AES/TKIP, but PSK not configured\n",
2435                                 __func__);
2436                        return ret;
2437                }
2438        }
2439
2440do_associate:
2441        ret = schedule_delayed_work(&wl->assoc_work, 0);
2442        pr_debug("%s: start association work %d\n", __func__, ret);
2443        return ret;
2444}
2445
2446/*
2447 * netdev handlers
2448 */
2449static int gelic_wl_open(struct net_device *netdev)
2450{
2451        struct gelic_card *card = netdev_card(netdev);
2452
2453        pr_debug("%s:->%p\n", __func__, netdev);
2454
2455        gelic_card_up(card);
2456
2457        /* try to associate */
2458        gelic_wl_try_associate(netdev);
2459
2460        netif_start_queue(netdev);
2461
2462        pr_debug("%s:<-\n", __func__);
2463        return 0;
2464}
2465
2466/*
2467 * reset state machine
2468 */
2469static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2470{
2471        struct gelic_wl_scan_info *target;
2472        struct gelic_wl_scan_info *tmp;
2473
2474        /* empty scan list */
2475        list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2476                list_move_tail(&target->list, &wl->network_free_list);
2477        }
2478        wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2479
2480        /* clear configuration */
2481        wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2482        wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2483        wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2484        wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2485
2486        wl->key_enabled = 0;
2487        wl->current_key = 0;
2488
2489        wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2490        wl->psk_len = 0;
2491
2492        wl->essid_len = 0;
2493        memset(wl->essid, 0, sizeof(wl->essid));
2494        memset(wl->bssid, 0, sizeof(wl->bssid));
2495        memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2496
2497        wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2498
2499        memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2500        /* all status bit clear */
2501        wl->stat = 0;
2502        return 0;
2503}
2504
2505/*
2506 * Tell eurus to terminate association
2507 */
2508static void gelic_wl_disconnect(struct net_device *netdev)
2509{
2510        struct gelic_port *port = netdev_priv(netdev);
2511        struct gelic_wl_info *wl = port_wl(port);
2512        struct gelic_eurus_cmd *cmd;
2513
2514        /*
2515         * If scann process is running on chip,
2516         * further requests will be rejected
2517         */
2518        if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2519                wait_for_completion_timeout(&wl->scan_done, HZ);
2520
2521        cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2522        kfree(cmd);
2523        gelic_wl_send_iwap_event(wl, NULL);
2524};
2525
2526static int gelic_wl_stop(struct net_device *netdev)
2527{
2528        struct gelic_port *port = netdev_priv(netdev);
2529        struct gelic_wl_info *wl = port_wl(port);
2530        struct gelic_card *card = netdev_card(netdev);
2531
2532        pr_debug("%s:<-\n", __func__);
2533
2534        /*
2535         * Cancel pending association work.
2536         * event work can run after netdev down
2537         */
2538        cancel_delayed_work(&wl->assoc_work);
2539
2540        if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2541                gelic_wl_disconnect(netdev);
2542
2543        /* reset our state machine */
2544        gelic_wl_reset_state(wl);
2545
2546        netif_stop_queue(netdev);
2547
2548        gelic_card_down(card);
2549
2550        pr_debug("%s:->\n", __func__);
2551        return 0;
2552}
2553
2554/* -- */
2555
2556static const struct net_device_ops gelic_wl_netdevice_ops = {
2557        .ndo_open = gelic_wl_open,
2558        .ndo_stop = gelic_wl_stop,
2559        .ndo_start_xmit = gelic_net_xmit,
2560        .ndo_set_rx_mode = gelic_net_set_multi,
2561        .ndo_tx_timeout = gelic_net_tx_timeout,
2562        .ndo_set_mac_address = eth_mac_addr,
2563        .ndo_validate_addr = eth_validate_addr,
2564#ifdef CONFIG_NET_POLL_CONTROLLER
2565        .ndo_poll_controller = gelic_net_poll_controller,
2566#endif
2567};
2568
2569static const struct ethtool_ops gelic_wl_ethtool_ops = {
2570        .get_drvinfo    = gelic_net_get_drvinfo,
2571        .get_link       = gelic_wl_get_link,
2572};
2573
2574static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2575{
2576        struct gelic_wl_info *wl;
2577        wl = port_wl(netdev_priv(netdev));
2578        BUG_ON(!wl);
2579        netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2580
2581        netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2582        netdev->netdev_ops = &gelic_wl_netdevice_ops;
2583        netdev->wireless_data = &wl->wireless_data;
2584        netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2585}
2586
2587/*
2588 * driver probe/remove
2589 */
2590int gelic_wl_driver_probe(struct gelic_card *card)
2591{
2592        int ret;
2593        struct net_device *netdev;
2594
2595        pr_debug("%s:start\n", __func__);
2596
2597        if (ps3_compare_firmware_version(1, 6, 0) < 0)
2598                return 0;
2599        if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2600                return 0;
2601
2602        /* alloc netdevice for wireless */
2603        netdev = gelic_wl_alloc(card);
2604        if (!netdev)
2605                return -ENOMEM;
2606
2607        /* setup net_device structure */
2608        SET_NETDEV_DEV(netdev, &card->dev->core);
2609        gelic_wl_setup_netdev_ops(netdev);
2610
2611        /* setup some of net_device and register it */
2612        ret = gelic_net_setup_netdev(netdev, card);
2613        if (ret)
2614                goto fail_setup;
2615        card->netdev[GELIC_PORT_WIRELESS] = netdev;
2616
2617        /* add enable wireless interrupt */
2618        card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2619                GELIC_CARD_WLAN_COMMAND_COMPLETED;
2620        /* to allow wireless commands while both interfaces are down */
2621        gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2622                                GELIC_CARD_WLAN_COMMAND_COMPLETED);
2623        pr_debug("%s:end\n", __func__);
2624        return 0;
2625
2626fail_setup:
2627        gelic_wl_free(port_wl(netdev_port(netdev)));
2628
2629        return ret;
2630}
2631
2632int gelic_wl_driver_remove(struct gelic_card *card)
2633{
2634        struct gelic_wl_info *wl;
2635        struct net_device *netdev;
2636
2637        pr_debug("%s:start\n", __func__);
2638
2639        if (ps3_compare_firmware_version(1, 6, 0) < 0)
2640                return 0;
2641        if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2642                return 0;
2643
2644        netdev = card->netdev[GELIC_PORT_WIRELESS];
2645        wl = port_wl(netdev_priv(netdev));
2646
2647        /* if the interface was not up, but associated */
2648        if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2649                gelic_wl_disconnect(netdev);
2650
2651        complete(&wl->cmd_done_intr);
2652
2653        /* cancel all work queue */
2654        cancel_delayed_work(&wl->assoc_work);
2655        cancel_delayed_work(&wl->event_work);
2656        flush_workqueue(wl->eurus_cmd_queue);
2657        flush_workqueue(wl->event_queue);
2658
2659        unregister_netdev(netdev);
2660
2661        /* disable wireless interrupt */
2662        pr_debug("%s: disable intr\n", __func__);
2663        card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2664                            GELIC_CARD_WLAN_COMMAND_COMPLETED);
2665        /* free bss list, netdev*/
2666        gelic_wl_free(wl);
2667        pr_debug("%s:end\n", __func__);
2668        return 0;
2669}
2670