drivers/net/wireless/bcm43xx/bcm43xx_wx.c

   1 /*
   2
   3   Broadcom BCM43xx wireless driver
   4
   5   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
   6                      Stefano Brivio <st3@riseup.net>
   7                      Michael Buesch <mbuesch@freenet.de>
   8                      Danny van Dyk <kugelfang@gentoo.org>
   9                      Andreas Jaggi <andreas.jaggi@waterwave.ch>
  10
  11   Some parts of the code in this file are derived from the ipw2200
  12   driver  Copyright(c) 2003 - 2004 Intel Corporation.
  13
  14   This program is free software; you can redistribute it and/or modify
  15   it under the terms of the GNU General Public License as published by
  16   the Free Software Foundation; either version 2 of the License, or
  17   (at your option) any later version.
  18
  19   This program is distributed in the hope that it will be useful,
  20   but WITHOUT ANY WARRANTY; without even the implied warranty of
  21   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22   GNU General Public License for more details.
  23
  24   You should have received a copy of the GNU General Public License
  25   along with this program; see the file COPYING.  If not, write to
  26   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  27   Boston, MA 02110-1301, USA.
  28
  29 */
  30
  31 #include <linux/wireless.h>
  32 #include <net/iw_handler.h>
  33 #include <net/ieee80211softmac.h>
  34 #include <net/ieee80211softmac_wx.h>
  35 #include <linux/capability.h>
  36 #include <linux/delay.h>
  37
  38 #include "bcm43xx.h"
  39 #include "bcm43xx_wx.h"
  40 #include "bcm43xx_main.h"
  41 #include "bcm43xx_radio.h"
  42 #include "bcm43xx_phy.h"
  43
  44
  45 /* The WIRELESS_EXT version, which is implemented by this driver. */
  46 #define BCM43xx_WX_VERSION      18
  47
  48 #define MAX_WX_STRING           80
  49
  50 static int bcm43xx_wx_get_name(struct net_device *net_dev,
  51                                struct iw_request_info *info,
  52                                union iwreq_data *data,
  53                                char *extra)
  54 {
  55         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
  56         int i;
  57         struct bcm43xx_phyinfo *phy;
  58         char suffix[7] = { 0 };
  59         int have_a = 0, have_b = 0, have_g = 0;
  60
  61         mutex_lock(&bcm->mutex);
  62         for (i = 0; i < bcm->nr_80211_available; i++) {
  63                 phy = &(bcm->core_80211_ext[i].phy);
  64                 switch (phy->type) {
  65                 case BCM43xx_PHYTYPE_A:
  66                         have_a = 1;
  67                         break;
  68                 case BCM43xx_PHYTYPE_G:
  69                         have_g = 1;
  70                 case BCM43xx_PHYTYPE_B:
  71                         have_b = 1;
  72                         break;
  73                 default:
  74                         assert(0);
  75                 }
  76         }
  77         mutex_unlock(&bcm->mutex);
  78
  79         i = 0;
  80         if (have_a) {
  81                 suffix[i++] = 'a';
  82                 suffix[i++] = '/';
  83         }
  84         if (have_b) {
  85                 suffix[i++] = 'b';
  86                 suffix[i++] = '/';
  87         }
  88         if (have_g) {
  89                 suffix[i++] = 'g';
  90                 suffix[i++] = '/';
  91         }
  92         if (i != 0)
  93                 suffix[i - 1] = '\0';
  94
  95         snprintf(data->name, IFNAMSIZ, "IEEE 802.11%s", suffix);
  96
  97         return 0;
  98 }
  99
 100 static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
 101                                       struct iw_request_info *info,
 102                                       union iwreq_data *data,
 103                                       char *extra)
 104 {
 105         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 106         unsigned long flags;
 107         u8 channel;
 108         s8 expon;
 109         int freq;
 110         int err = -EINVAL;
 111
 112         mutex_lock(&bcm->mutex);
 113         spin_lock_irqsave(&bcm->irq_lock, flags);
 114
 115         if ((data->freq.e == 0) &&
 116             (data->freq.m >= 0) && (data->freq.m <= 1000)) {
 117                 channel = data->freq.m;
 118                 freq = bcm43xx_channel_to_freq(bcm, channel);
 119         } else {
 120                 freq = data->freq.m;
 121                 expon = 6 - data->freq.e;
 122                 while (--expon >= 0)    /* scale down the frequency to MHz */
 123                         freq /= 10;
 124                 assert(freq > 1000);
 125                 channel = bcm43xx_freq_to_channel(bcm, freq);
 126         }
 127         if (!ieee80211_is_valid_channel(bcm->ieee, channel))
 128                 goto out_unlock;
 129         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
 130                 //ieee80211softmac_disassoc(softmac, $REASON);
 131                 bcm43xx_mac_suspend(bcm);
 132                 err = bcm43xx_radio_selectchannel(bcm, channel, 0);
 133                 bcm43xx_mac_enable(bcm);
 134         } else {
 135                 bcm43xx_current_radio(bcm)->initial_channel = channel;
 136                 err = 0;
 137         }
 138 out_unlock:
 139         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 140         mutex_unlock(&bcm->mutex);
 141
 142         return err;
 143 }
 144
 145 static int bcm43xx_wx_get_channelfreq(struct net_device *net_dev,
 146                                       struct iw_request_info *info,
 147                                       union iwreq_data *data,
 148                                       char *extra)
 149 {
 150         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 151         struct bcm43xx_radioinfo *radio;
 152         int err = -ENODEV;
 153         u16 channel;
 154
 155         mutex_lock(&bcm->mutex);
 156         radio = bcm43xx_current_radio(bcm);
 157         channel = radio->channel;
 158         if (channel == 0xFF) {
 159                 channel = radio->initial_channel;
 160                 if (channel == 0xFF)
 161                         goto out_unlock;
 162         }
 163         assert(channel > 0 && channel <= 1000);
 164         data->freq.e = 1;
 165         data->freq.m = bcm43xx_channel_to_freq(bcm, channel) * 100000;
 166         data->freq.flags = 1;
 167
 168         err = 0;
 169 out_unlock:
 170         mutex_unlock(&bcm->mutex);
 171
 172         return err;
 173 }
 174
 175 static int bcm43xx_wx_set_mode(struct net_device *net_dev,
 176                                struct iw_request_info *info,
 177                                union iwreq_data *data,
 178                                char *extra)
 179 {
 180         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 181         unsigned long flags;
 182         int mode;
 183
 184         mode = data->mode;
 185         if (mode == IW_MODE_AUTO)
 186                 mode = BCM43xx_INITIAL_IWMODE;
 187
 188         mutex_lock(&bcm->mutex);
 189         spin_lock_irqsave(&bcm->irq_lock, flags);
 190         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
 191                 if (bcm->ieee->iw_mode != mode)
 192                         bcm43xx_set_iwmode(bcm, mode);
 193         } else
 194                 bcm->ieee->iw_mode = mode;
 195         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 196         mutex_unlock(&bcm->mutex);
 197
 198         return 0;
 199 }
 200
 201 static int bcm43xx_wx_get_mode(struct net_device *net_dev,
 202                                struct iw_request_info *info,
 203                                union iwreq_data *data,
 204                                char *extra)
 205 {
 206         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 207
 208         mutex_lock(&bcm->mutex);
 209         data->mode = bcm->ieee->iw_mode;
 210         mutex_unlock(&bcm->mutex);
 211
 212         return 0;
 213 }
 214
 215 static int bcm43xx_wx_get_rangeparams(struct net_device *net_dev,
 216                                       struct iw_request_info *info,
 217                                       union iwreq_data *data,
 218                                       char *extra)
 219 {
 220         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 221         struct iw_range *range = (struct iw_range *)extra;
 222         const struct ieee80211_geo *geo;
 223         int i, j;
 224         struct bcm43xx_phyinfo *phy;
 225
 226         data->data.length = sizeof(*range);
 227         memset(range, 0, sizeof(*range));
 228
 229         //TODO: What about 802.11b?
 230         /* 54Mb/s == ~27Mb/s payload throughput (802.11g) */
 231         range->throughput = 27 * 1000 * 1000;
 232
 233         range->max_qual.qual = 100;
 234         range->max_qual.level = 146; /* set floor at -110 dBm (146 - 256) */
 235         range->max_qual.noise = 146;
 236         range->max_qual.updated = IW_QUAL_ALL_UPDATED;
 237
 238         range->avg_qual.qual = 50;
 239         range->avg_qual.level = 0;
 240         range->avg_qual.noise = 0;
 241         range->avg_qual.updated = IW_QUAL_ALL_UPDATED;
 242
 243         range->min_rts = BCM43xx_MIN_RTS_THRESHOLD;
 244         range->max_rts = BCM43xx_MAX_RTS_THRESHOLD;
 245         range->min_frag = MIN_FRAG_THRESHOLD;
 246         range->max_frag = MAX_FRAG_THRESHOLD;
 247
 248         range->encoding_size[0] = 5;
 249         range->encoding_size[1] = 13;
 250         range->num_encoding_sizes = 2;
 251         range->max_encoding_tokens = WEP_KEYS;
 252
 253         range->we_version_compiled = WIRELESS_EXT;
 254         range->we_version_source = BCM43xx_WX_VERSION;
 255
 256         range->enc_capa = IW_ENC_CAPA_WPA |
 257                           IW_ENC_CAPA_WPA2 |
 258                           IW_ENC_CAPA_CIPHER_TKIP |
 259                           IW_ENC_CAPA_CIPHER_CCMP;
 260
 261         mutex_lock(&bcm->mutex);
 262         phy = bcm43xx_current_phy(bcm);
 263
 264         range->num_bitrates = 0;
 265         i = 0;
 266         if (phy->type == BCM43xx_PHYTYPE_A ||
 267             phy->type == BCM43xx_PHYTYPE_G) {
 268                 range->num_bitrates = 8;
 269                 range->bitrate[i++] = IEEE80211_OFDM_RATE_6MB * 500000;
 270                 range->bitrate[i++] = IEEE80211_OFDM_RATE_9MB * 500000;
 271                 range->bitrate[i++] = IEEE80211_OFDM_RATE_12MB * 500000;
 272                 range->bitrate[i++] = IEEE80211_OFDM_RATE_18MB * 500000;
 273                 range->bitrate[i++] = IEEE80211_OFDM_RATE_24MB * 500000;
 274                 range->bitrate[i++] = IEEE80211_OFDM_RATE_36MB * 500000;
 275                 range->bitrate[i++] = IEEE80211_OFDM_RATE_48MB * 500000;
 276                 range->bitrate[i++] = IEEE80211_OFDM_RATE_54MB * 500000;
 277         }
 278         if (phy->type == BCM43xx_PHYTYPE_B ||
 279             phy->type == BCM43xx_PHYTYPE_G) {
 280                 range->num_bitrates += 4;
 281                 range->bitrate[i++] = IEEE80211_CCK_RATE_1MB * 500000;
 282                 range->bitrate[i++] = IEEE80211_CCK_RATE_2MB * 500000;
 283                 range->bitrate[i++] = IEEE80211_CCK_RATE_5MB * 500000;
 284                 range->bitrate[i++] = IEEE80211_CCK_RATE_11MB * 500000;
 285         }
 286
 287         geo = ieee80211_get_geo(bcm->ieee);
 288         range->num_channels = geo->a_channels + geo->bg_channels;
 289         j = 0;
 290         for (i = 0; i < geo->a_channels; i++) {
 291                 if (j == IW_MAX_FREQUENCIES)
 292                         break;
 293                 range->freq[j].i = j + 1;
 294                 range->freq[j].m = geo->a[i].freq * 100000;
 295                 range->freq[j].e = 1;
 296                 j++;
 297         }
 298         for (i = 0; i < geo->bg_channels; i++) {
 299                 if (j == IW_MAX_FREQUENCIES)
 300                         break;
 301                 range->freq[j].i = j + 1;
 302                 range->freq[j].m = geo->bg[i].freq * 100000;
 303                 range->freq[j].e = 1;
 304                 j++;
 305         }
 306         range->num_frequency = j;
 307
 308         mutex_unlock(&bcm->mutex);
 309
 310         return 0;
 311 }
 312
 313 static int bcm43xx_wx_set_nick(struct net_device *net_dev,
 314                                struct iw_request_info *info,
 315                                union iwreq_data *data,
 316                                char *extra)
 317 {
 318         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 319         size_t len;
 320
 321         mutex_lock(&bcm->mutex);
 322         len =  min((size_t)data->data.length, (size_t)IW_ESSID_MAX_SIZE);
 323         memcpy(bcm->nick, extra, len);
 324         bcm->nick[len] = '\0';
 325         mutex_unlock(&bcm->mutex);
 326
 327         return 0;
 328 }
 329
 330 static int bcm43xx_wx_get_nick(struct net_device *net_dev,
 331                                struct iw_request_info *info,
 332                                union iwreq_data *data,
 333                                char *extra)
 334 {
 335         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 336         size_t len;
 337
 338         mutex_lock(&bcm->mutex);
 339         len = strlen(bcm->nick);
 340         memcpy(extra, bcm->nick, len);
 341         data->data.length = (__u16)len;
 342         data->data.flags = 1;
 343         mutex_unlock(&bcm->mutex);
 344
 345         return 0;
 346 }
 347
 348 static int bcm43xx_wx_set_rts(struct net_device *net_dev,
 349                               struct iw_request_info *info,
 350                               union iwreq_data *data,
 351                               char *extra)
 352 {
 353         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 354         unsigned long flags;
 355         int err = -EINVAL;
 356
 357         mutex_lock(&bcm->mutex);
 358         spin_lock_irqsave(&bcm->irq_lock, flags);
 359         if (data->rts.disabled) {
 360                 bcm->rts_threshold = BCM43xx_MAX_RTS_THRESHOLD;
 361                 err = 0;
 362         } else {
 363                 if (data->rts.value >= BCM43xx_MIN_RTS_THRESHOLD &&
 364                     data->rts.value <= BCM43xx_MAX_RTS_THRESHOLD) {
 365                         bcm->rts_threshold = data->rts.value;
 366                         err = 0;
 367                 }
 368         }
 369         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 370         mutex_unlock(&bcm->mutex);
 371
 372         return err;
 373 }
 374
 375 static int bcm43xx_wx_get_rts(struct net_device *net_dev,
 376                               struct iw_request_info *info,
 377                               union iwreq_data *data,
 378                               char *extra)
 379 {
 380         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 381
 382         mutex_lock(&bcm->mutex);
 383         data->rts.value = bcm->rts_threshold;
 384         data->rts.fixed = 0;
 385         data->rts.disabled = (bcm->rts_threshold == BCM43xx_MAX_RTS_THRESHOLD);
 386         mutex_unlock(&bcm->mutex);
 387
 388         return 0;
 389 }
 390
 391 static int bcm43xx_wx_set_frag(struct net_device *net_dev,
 392                                struct iw_request_info *info,
 393                                union iwreq_data *data,
 394                                char *extra)
 395 {
 396         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 397         unsigned long flags;
 398         int err = -EINVAL;
 399
 400         mutex_lock(&bcm->mutex);
 401         spin_lock_irqsave(&bcm->irq_lock, flags);
 402         if (data->frag.disabled) {
 403                 bcm->ieee->fts = MAX_FRAG_THRESHOLD;
 404                 err = 0;
 405         } else {
 406                 if (data->frag.value >= MIN_FRAG_THRESHOLD &&
 407                     data->frag.value <= MAX_FRAG_THRESHOLD) {
 408                         bcm->ieee->fts = data->frag.value & ~0x1;
 409                         err = 0;
 410                 }
 411         }
 412         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 413         mutex_unlock(&bcm->mutex);
 414
 415         return err;
 416 }
 417
 418 static int bcm43xx_wx_get_frag(struct net_device *net_dev,
 419                                struct iw_request_info *info,
 420                                union iwreq_data *data,
 421                                char *extra)
 422 {
 423         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 424
 425         mutex_lock(&bcm->mutex);
 426         data->frag.value = bcm->ieee->fts;
 427         data->frag.fixed = 0;
 428         data->frag.disabled = (bcm->ieee->fts == MAX_FRAG_THRESHOLD);
 429         mutex_unlock(&bcm->mutex);
 430
 431         return 0;
 432 }
 433
 434 static int bcm43xx_wx_set_xmitpower(struct net_device *net_dev,
 435                                     struct iw_request_info *info,
 436                                     union iwreq_data *data,
 437                                     char *extra)
 438 {
 439         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 440         struct bcm43xx_radioinfo *radio;
 441         struct bcm43xx_phyinfo *phy;
 442         unsigned long flags;
 443         int err = -ENODEV;
 444         u16 maxpower;
 445
 446         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) {
 447                 printk(KERN_ERR PFX "TX power not in dBm.\n");
 448                 return -EOPNOTSUPP;
 449         }
 450
 451         mutex_lock(&bcm->mutex);
 452         spin_lock_irqsave(&bcm->irq_lock, flags);
 453         if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)
 454                 goto out_unlock;
 455         radio = bcm43xx_current_radio(bcm);
 456         phy = bcm43xx_current_phy(bcm);
 457         if (data->txpower.disabled != (!(radio->enabled))) {
 458                 if (data->txpower.disabled)
 459                         bcm43xx_radio_turn_off(bcm);
 460                 else
 461                         bcm43xx_radio_turn_on(bcm);
 462         }
 463         if (data->txpower.value > 0) {
 464                 /* desired and maxpower dBm values are in Q5.2 */
 465                 if (phy->type == BCM43xx_PHYTYPE_A)
 466                         maxpower = bcm->sprom.maxpower_aphy;
 467                 else
 468                         maxpower = bcm->sprom.maxpower_bgphy;
 469                 radio->txpower_desired = limit_value(data->txpower.value << 2,
 470                                                      0, maxpower);
 471                 bcm43xx_phy_xmitpower(bcm);
 472         }
 473         err = 0;
 474
 475 out_unlock:
 476         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 477         mutex_unlock(&bcm->mutex);
 478
 479         return err;
 480 }
 481
 482 static int bcm43xx_wx_get_xmitpower(struct net_device *net_dev,
 483                                     struct iw_request_info *info,
 484                                     union iwreq_data *data,
 485                                     char *extra)
 486 {
 487         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 488         struct bcm43xx_radioinfo *radio;
 489         int err = -ENODEV;
 490
 491         mutex_lock(&bcm->mutex);
 492         if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)
 493                 goto out_unlock;
 494         radio = bcm43xx_current_radio(bcm);
 495         /* desired dBm value is in Q5.2 */
 496         data->txpower.value = radio->txpower_desired >> 2;
 497         data->txpower.fixed = 1;
 498         data->txpower.flags = IW_TXPOW_DBM;
 499         data->txpower.disabled = !(radio->enabled);
 500
 501         err = 0;
 502 out_unlock:
 503         mutex_unlock(&bcm->mutex);
 504
 505         return err;
 506 }
 507
 508 static int bcm43xx_wx_set_encoding(struct net_device *net_dev,
 509                                    struct iw_request_info *info,
 510                                    union iwreq_data *data,
 511                                    char *extra)
 512 {
 513         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 514         int err;
 515
 516         err = ieee80211_wx_set_encode(bcm->ieee, info, data, extra);
 517
 518         return err;
 519 }
 520
 521 static int bcm43xx_wx_set_encodingext(struct net_device *net_dev,
 522                                    struct iw_request_info *info,
 523                                    union iwreq_data *data,
 524                                    char *extra)
 525 {
 526         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 527         int err;
 528
 529         err = ieee80211_wx_set_encodeext(bcm->ieee, info, data, extra);
 530
 531         return err;
 532 }
 533
 534 static int bcm43xx_wx_get_encoding(struct net_device *net_dev,
 535                                    struct iw_request_info *info,
 536                                    union iwreq_data *data,
 537                                    char *extra)
 538 {
 539         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 540         int err;
 541
 542         err = ieee80211_wx_get_encode(bcm->ieee, info, data, extra);
 543
 544         return err;
 545 }
 546
 547 static int bcm43xx_wx_get_encodingext(struct net_device *net_dev,
 548                                    struct iw_request_info *info,
 549                                    union iwreq_data *data,
 550                                    char *extra)
 551 {
 552         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 553         int err;
 554
 555         err = ieee80211_wx_get_encodeext(bcm->ieee, info, data, extra);
 556
 557         return err;
 558 }
 559
 560 static int bcm43xx_wx_set_interfmode(struct net_device *net_dev,
 561                                      struct iw_request_info *info,
 562                                      union iwreq_data *data,
 563                                      char *extra)
 564 {
 565         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 566         unsigned long flags;
 567         int mode, err = 0;
 568
 569         mode = *((int *)extra);
 570         switch (mode) {
 571         case 0:
 572                 mode = BCM43xx_RADIO_INTERFMODE_NONE;
 573                 break;
 574         case 1:
 575                 mode = BCM43xx_RADIO_INTERFMODE_NONWLAN;
 576                 break;
 577         case 2:
 578                 mode = BCM43xx_RADIO_INTERFMODE_MANUALWLAN;
 579                 break;
 580         case 3:
 581                 mode = BCM43xx_RADIO_INTERFMODE_AUTOWLAN;
 582                 break;
 583         default:
 584                 printk(KERN_ERR PFX "set_interfmode allowed parameters are: "
 585                                     "0 => None,  1 => Non-WLAN,  2 => WLAN,  "
 586                                     "3 => Auto-WLAN\n");
 587                 return -EINVAL;
 588         }
 589
 590         mutex_lock(&bcm->mutex);
 591         spin_lock_irqsave(&bcm->irq_lock, flags);
 592         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
 593                 err = bcm43xx_radio_set_interference_mitigation(bcm, mode);
 594                 if (err) {
 595                         printk(KERN_ERR PFX "Interference Mitigation not "
 596                                             "supported by device\n");
 597                 }
 598         } else {
 599                 if (mode == BCM43xx_RADIO_INTERFMODE_AUTOWLAN) {
 600                         printk(KERN_ERR PFX "Interference Mitigation mode Auto-WLAN "
 601                                             "not supported while the interface is down.\n");
 602                         err = -ENODEV;
 603                 } else
 604                         bcm43xx_current_radio(bcm)->interfmode = mode;
 605         }
 606         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 607         mutex_unlock(&bcm->mutex);
 608
 609         return err;
 610 }
 611
 612 static int bcm43xx_wx_get_interfmode(struct net_device *net_dev,
 613                                      struct iw_request_info *info,
 614                                      union iwreq_data *data,
 615                                      char *extra)
 616 {
 617         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 618         int mode;
 619
 620         mutex_lock(&bcm->mutex);
 621         mode = bcm43xx_current_radio(bcm)->interfmode;
 622         mutex_unlock(&bcm->mutex);
 623
 624         switch (mode) {
 625         case BCM43xx_RADIO_INTERFMODE_NONE:
 626                 strncpy(extra, "0 (No Interference Mitigation)", MAX_WX_STRING);
 627                 break;
 628         case BCM43xx_RADIO_INTERFMODE_NONWLAN:
 629                 strncpy(extra, "1 (Non-WLAN Interference Mitigation)", MAX_WX_STRING);
 630                 break;
 631         case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
 632                 strncpy(extra, "2 (WLAN Interference Mitigation)", MAX_WX_STRING);
 633                 break;
 634         default:
 635                 assert(0);
 636         }
 637         data->data.length = strlen(extra) + 1;
 638
 639         return 0;
 640 }
 641
 642 static int bcm43xx_wx_set_shortpreamble(struct net_device *net_dev,
 643                                         struct iw_request_info *info,
 644                                         union iwreq_data *data,
 645                                         char *extra)
 646 {
 647         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 648         unsigned long flags;
 649         int on;
 650
 651         on = *((int *)extra);
 652         mutex_lock(&bcm->mutex);
 653         spin_lock_irqsave(&bcm->irq_lock, flags);
 654         bcm->short_preamble = !!on;
 655         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 656         mutex_unlock(&bcm->mutex);
 657
 658         return 0;
 659 }
 660
 661 static int bcm43xx_wx_get_shortpreamble(struct net_device *net_dev,
 662                                         struct iw_request_info *info,
 663                                         union iwreq_data *data,
 664                                         char *extra)
 665 {
 666         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 667         int on;
 668
 669         mutex_lock(&bcm->mutex);
 670         on = bcm->short_preamble;
 671         mutex_unlock(&bcm->mutex);
 672
 673         if (on)
 674                 strncpy(extra, "1 (Short Preamble enabled)", MAX_WX_STRING);
 675         else
 676                 strncpy(extra, "0 (Short Preamble disabled)", MAX_WX_STRING);
 677         data->data.length = strlen(extra) + 1;
 678
 679         return 0;
 680 }
 681
 682 static int bcm43xx_wx_set_swencryption(struct net_device *net_dev,
 683                                        struct iw_request_info *info,
 684                                        union iwreq_data *data,
 685                                        char *extra)
 686 {
 687         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 688         unsigned long flags;
 689         int on;
 690
 691         on = *((int *)extra);
 692
 693         mutex_lock(&bcm->mutex);
 694         spin_lock_irqsave(&bcm->irq_lock, flags);
 695         bcm->ieee->host_encrypt = !!on;
 696         bcm->ieee->host_decrypt = !!on;
 697         bcm->ieee->host_build_iv = !on;
 698         bcm->ieee->host_strip_iv_icv = !on;
 699         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 700         mutex_unlock(&bcm->mutex);
 701
 702         return 0;
 703 }
 704
 705 static int bcm43xx_wx_get_swencryption(struct net_device *net_dev,
 706                                        struct iw_request_info *info,
 707                                        union iwreq_data *data,
 708                                        char *extra)
 709 {
 710         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 711         int on;
 712
 713         mutex_lock(&bcm->mutex);
 714         on = bcm->ieee->host_encrypt;
 715         mutex_unlock(&bcm->mutex);
 716
 717         if (on)
 718                 strncpy(extra, "1 (SW encryption enabled) ", MAX_WX_STRING);
 719         else
 720                 strncpy(extra, "0 (SW encryption disabled) ", MAX_WX_STRING);
 721         data->data.length = strlen(extra + 1);
 722
 723         return 0;
 724 }
 725
 726 /* Enough buffer to hold a hexdump of the sprom data. */
 727 #define SPROM_BUFFERSIZE        512
 728
 729 static int sprom2hex(const u16 *sprom, char *dump)
 730 {
 731         int i, pos = 0;
 732
 733         for (i = 0; i < BCM43xx_SPROM_SIZE; i++) {
 734                 pos += snprintf(dump + pos, SPROM_BUFFERSIZE - pos - 1,
 735                                 "%04X", swab16(sprom[i]) & 0xFFFF);
 736         }
 737
 738         return pos + 1;
 739 }
 740
 741 static int hex2sprom(u16 *sprom, const char *dump, unsigned int len)
 742 {
 743         char tmp[5] = { 0 };
 744         int cnt = 0;
 745         unsigned long parsed;
 746
 747         if (len < BCM43xx_SPROM_SIZE * sizeof(u16) * 2)
 748                 return -EINVAL;
 749         while (cnt < BCM43xx_SPROM_SIZE) {
 750                 memcpy(tmp, dump, 4);
 751                 dump += 4;
 752                 parsed = simple_strtoul(tmp, NULL, 16);
 753                 sprom[cnt++] = swab16((u16)parsed);
 754         }
 755
 756         return 0;
 757 }
 758
 759 static int bcm43xx_wx_sprom_read(struct net_device *net_dev,
 760                                  struct iw_request_info *info,
 761                                  union iwreq_data *data,
 762                                  char *extra)
 763 {
 764         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 765         int err = -EPERM;
 766         u16 *sprom;
 767         unsigned long flags;
 768
 769         if (!capable(CAP_SYS_RAWIO))
 770                 goto out;
 771
 772         err = -ENOMEM;
 773         sprom = kmalloc(BCM43xx_SPROM_SIZE * sizeof(*sprom),
 774                         GFP_KERNEL);
 775         if (!sprom)
 776                 goto out;
 777
 778         mutex_lock(&bcm->mutex);
 779         spin_lock_irqsave(&bcm->irq_lock, flags);
 780         err = -ENODEV;
 781         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)
 782                 err = bcm43xx_sprom_read(bcm, sprom);
 783         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 784         mutex_unlock(&bcm->mutex);
 785         if (!err)
 786                 data->data.length = sprom2hex(sprom, extra);
 787         kfree(sprom);
 788 out:
 789         return err;
 790 }
 791
 792 static int bcm43xx_wx_sprom_write(struct net_device *net_dev,
 793                                   struct iw_request_info *info,
 794                                   union iwreq_data *data,
 795                                   char *extra)
 796 {
 797         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 798         int err = -EPERM;
 799         u16 *sprom;
 800         unsigned long flags;
 801         char *input;
 802         unsigned int len;
 803
 804         if (!capable(CAP_SYS_RAWIO))
 805                 goto out;
 806
 807         err = -ENOMEM;
 808         sprom = kmalloc(BCM43xx_SPROM_SIZE * sizeof(*sprom),
 809                         GFP_KERNEL);
 810         if (!sprom)
 811                 goto out;
 812
 813         len = data->data.length;
 814         extra[len - 1] = '\0';
 815         input = strchr(extra, ':');
 816         if (input) {
 817                 input++;
 818                 len -= input - extra;
 819         } else
 820                 input = extra;
 821         err = hex2sprom(sprom, input, len);
 822         if (err)
 823                 goto out_kfree;
 824
 825         mutex_lock(&bcm->mutex);
 826         spin_lock_irqsave(&bcm->irq_lock, flags);
 827         spin_lock(&bcm->leds_lock);
 828         err = -ENODEV;
 829         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)
 830                 err = bcm43xx_sprom_write(bcm, sprom);
 831         spin_unlock(&bcm->leds_lock);
 832         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 833         mutex_unlock(&bcm->mutex);
 834 out_kfree:
 835         kfree(sprom);
 836 out:
 837         return err;
 838 }
 839
 840 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
 841
 842 static struct iw_statistics *bcm43xx_get_wireless_stats(struct net_device *net_dev)
 843 {
 844         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 845         struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
 846         struct iw_statistics *wstats;
 847         struct ieee80211_network *network = NULL;
 848         static int tmp_level = 0;
 849         static int tmp_qual = 0;
 850         unsigned long flags;
 851
 852         wstats = &bcm->stats.wstats;
 853         if (!mac->associnfo.associated) {
 854                 wstats->miss.beacon = 0;
 855 //              bcm->ieee->ieee_stats.tx_retry_limit_exceeded = 0; // FIXME: should this be cleared here?
 856                 wstats->discard.retries = 0;
 857 //              bcm->ieee->ieee_stats.tx_discards_wrong_sa = 0; // FIXME: same question
 858                 wstats->discard.nwid = 0;
 859 //              bcm->ieee->ieee_stats.rx_discards_undecryptable = 0; // FIXME: ditto
 860                 wstats->discard.code = 0;
 861 //              bcm->ieee->ieee_stats.rx_fragments = 0;  // FIXME: same here
 862                 wstats->discard.fragment = 0;
 863                 wstats->discard.misc = 0;
 864                 wstats->qual.qual = 0;
 865                 wstats->qual.level = 0;
 866                 wstats->qual.noise = 0;
 867                 wstats->qual.updated = 7;
 868                 wstats->qual.updated |= IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
 869                 return wstats;
 870         }
 871         /* fill in the real statistics when iface associated */
 872         spin_lock_irqsave(&mac->ieee->lock, flags);
 873         list_for_each_entry(network, &mac->ieee->network_list, list) {
 874                 if (!memcmp(mac->associnfo.bssid, network->bssid, ETH_ALEN)) {
 875                         if (!tmp_level) {       /* get initial values */
 876                                 tmp_level = network->stats.signal;
 877                                 tmp_qual = network->stats.rssi;
 878                         } else {                /* smooth results */
 879                                 tmp_level = (15 * tmp_level + network->stats.signal)/16;
 880                                 tmp_qual = (15 * tmp_qual + network->stats.rssi)/16;
 881                         }
 882                         break;
 883                 }
 884         }
 885         spin_unlock_irqrestore(&mac->ieee->lock, flags);
 886         wstats->qual.level = tmp_level;
 887         wstats->qual.qual = 100 * tmp_qual / RX_RSSI_MAX;
 888         wstats->qual.noise = bcm->stats.noise;
 889         wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
 890         wstats->discard.code = bcm->ieee->ieee_stats.rx_discards_undecryptable;
 891         wstats->discard.retries = bcm->ieee->ieee_stats.tx_retry_limit_exceeded;
 892         wstats->discard.nwid = bcm->ieee->ieee_stats.tx_discards_wrong_sa;
 893         wstats->discard.fragment = bcm->ieee->ieee_stats.rx_fragments;
 894         wstats->discard.misc = 0;       // FIXME
 895         wstats->miss.beacon = 0;        // FIXME
 896         return wstats;
 897 }
 898
 899
 900 #ifdef WX
 901 # undef WX
 902 #endif
 903 #define WX(ioctl)  [(ioctl) - SIOCSIWCOMMIT]
 904 static const iw_handler bcm43xx_wx_handlers[] = {
 905         /* Wireless Identification */
 906         WX(SIOCGIWNAME)         = bcm43xx_wx_get_name,
 907         /* Basic operations */
 908         WX(SIOCSIWFREQ)         = bcm43xx_wx_set_channelfreq,
 909         WX(SIOCGIWFREQ)         = bcm43xx_wx_get_channelfreq,
 910         WX(SIOCSIWMODE)         = bcm43xx_wx_set_mode,
 911         WX(SIOCGIWMODE)         = bcm43xx_wx_get_mode,
 912         /* Informative stuff */
 913         WX(SIOCGIWRANGE)        = bcm43xx_wx_get_rangeparams,
 914         /* Access Point manipulation */
 915         WX(SIOCSIWAP)           = ieee80211softmac_wx_set_wap,
 916         WX(SIOCGIWAP)           = ieee80211softmac_wx_get_wap,
 917         WX(SIOCSIWSCAN)         = ieee80211softmac_wx_trigger_scan,
 918         WX(SIOCGIWSCAN)         = ieee80211softmac_wx_get_scan_results,
 919         /* 802.11 specific support */
 920         WX(SIOCSIWESSID)        = ieee80211softmac_wx_set_essid,
 921         WX(SIOCGIWESSID)        = ieee80211softmac_wx_get_essid,
 922         WX(SIOCSIWNICKN)        = bcm43xx_wx_set_nick,
 923         WX(SIOCGIWNICKN)        = bcm43xx_wx_get_nick,
 924         /* Other parameters */
 925         WX(SIOCSIWRATE)         = ieee80211softmac_wx_set_rate,
 926         WX(SIOCGIWRATE)         = ieee80211softmac_wx_get_rate,
 927         WX(SIOCSIWRTS)          = bcm43xx_wx_set_rts,
 928         WX(SIOCGIWRTS)          = bcm43xx_wx_get_rts,
 929         WX(SIOCSIWFRAG)         = bcm43xx_wx_set_frag,
 930         WX(SIOCGIWFRAG)         = bcm43xx_wx_get_frag,
 931         WX(SIOCSIWTXPOW)        = bcm43xx_wx_set_xmitpower,
 932         WX(SIOCGIWTXPOW)        = bcm43xx_wx_get_xmitpower,
 933 //TODO  WX(SIOCSIWRETRY)        = bcm43xx_wx_set_retry,
 934 //TODO  WX(SIOCGIWRETRY)        = bcm43xx_wx_get_retry,
 935         /* Encoding */
 936         WX(SIOCSIWENCODE)       = bcm43xx_wx_set_encoding,
 937         WX(SIOCGIWENCODE)       = bcm43xx_wx_get_encoding,
 938         WX(SIOCSIWENCODEEXT)    = bcm43xx_wx_set_encodingext,
 939         WX(SIOCGIWENCODEEXT)    = bcm43xx_wx_get_encodingext,
 940         /* Power saving */
 941 //TODO  WX(SIOCSIWPOWER)        = bcm43xx_wx_set_power,
 942 //TODO  WX(SIOCGIWPOWER)        = bcm43xx_wx_get_power,
 943         WX(SIOCSIWGENIE)        = ieee80211softmac_wx_set_genie,
 944         WX(SIOCGIWGENIE)        = ieee80211softmac_wx_get_genie,
 945         WX(SIOCSIWAUTH)         = ieee80211_wx_set_auth,
 946         WX(SIOCGIWAUTH)         = ieee80211_wx_get_auth,
 947 };
 948 #undef WX
 949
 950 static const iw_handler bcm43xx_priv_wx_handlers[] = {
 951         /* Set Interference Mitigation Mode. */
 952         bcm43xx_wx_set_interfmode,
 953         /* Get Interference Mitigation Mode. */
 954         bcm43xx_wx_get_interfmode,
 955         /* Enable/Disable Short Preamble mode. */
 956         bcm43xx_wx_set_shortpreamble,
 957         /* Get Short Preamble mode. */
 958         bcm43xx_wx_get_shortpreamble,
 959         /* Enable/Disable Software Encryption mode */
 960         bcm43xx_wx_set_swencryption,
 961         /* Get Software Encryption mode */
 962         bcm43xx_wx_get_swencryption,
 963         /* Write SRPROM data. */
 964         bcm43xx_wx_sprom_write,
 965         /* Read SPROM data. */
 966         bcm43xx_wx_sprom_read,
 967 };
 968
 969 #define PRIV_WX_SET_INTERFMODE          (SIOCIWFIRSTPRIV + 0)
 970 #define PRIV_WX_GET_INTERFMODE          (SIOCIWFIRSTPRIV + 1)
 971 #define PRIV_WX_SET_SHORTPREAMBLE       (SIOCIWFIRSTPRIV + 2)
 972 #define PRIV_WX_GET_SHORTPREAMBLE       (SIOCIWFIRSTPRIV + 3)
 973 #define PRIV_WX_SET_SWENCRYPTION        (SIOCIWFIRSTPRIV + 4)
 974 #define PRIV_WX_GET_SWENCRYPTION        (SIOCIWFIRSTPRIV + 5)
 975 #define PRIV_WX_SPROM_WRITE             (SIOCIWFIRSTPRIV + 6)
 976 #define PRIV_WX_SPROM_READ              (SIOCIWFIRSTPRIV + 7)
 977
 978 #define PRIV_WX_DUMMY(ioctl)    \
 979         {                                       \
 980                 .cmd            = (ioctl),      \
 981                 .name           = "__unused"    \
 982         }
 983
 984 static const struct iw_priv_args bcm43xx_priv_wx_args[] = {
 985         {
 986                 .cmd            = PRIV_WX_SET_INTERFMODE,
 987                 .set_args       = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 988                 .name           = "set_interfmode",
 989         },
 990         {
 991                 .cmd            = PRIV_WX_GET_INTERFMODE,
 992                 .get_args       = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
 993                 .name           = "get_interfmode",
 994         },
 995         {
 996                 .cmd            = PRIV_WX_SET_SHORTPREAMBLE,
 997                 .set_args       = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 998                 .name           = "set_shortpreamb",
 999         },
1000         {
1001                 .cmd            = PRIV_WX_GET_SHORTPREAMBLE,
1002                 .get_args       = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
1003                 .name           = "get_shortpreamb",
1004         },
1005         {
1006                 .cmd            = PRIV_WX_SET_SWENCRYPTION,
1007                 .set_args       = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1008                 .name           = "set_swencrypt",
1009         },
1010         {
1011                 .cmd            = PRIV_WX_GET_SWENCRYPTION,
1012                 .get_args       = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
1013                 .name           = "get_swencrypt",
1014         },
1015         {
1016                 .cmd            = PRIV_WX_SPROM_WRITE,
1017                 .set_args       = IW_PRIV_TYPE_CHAR | SPROM_BUFFERSIZE,
1018                 .name           = "write_sprom",
1019         },
1020         {
1021                 .cmd            = PRIV_WX_SPROM_READ,
1022                 .get_args       = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | SPROM_BUFFERSIZE,
1023                 .name           = "read_sprom",
1024         },
1025 };
1026
1027 const struct iw_handler_def bcm43xx_wx_handlers_def = {
1028         .standard               = bcm43xx_wx_handlers,
1029         .num_standard           = ARRAY_SIZE(bcm43xx_wx_handlers),
1030         .num_private            = ARRAY_SIZE(bcm43xx_priv_wx_handlers),
1031         .num_private_args       = ARRAY_SIZE(bcm43xx_priv_wx_args),
1032         .private                = bcm43xx_priv_wx_handlers,
1033         .private_args           = bcm43xx_priv_wx_args,
1034         .get_wireless_stats     = bcm43xx_get_wireless_stats,
1035 };