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