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/sched.h> /* for capable() */
  37 #include <linux/delay.h>
  38
  39 #include "bcm43xx.h"
  40 #include "bcm43xx_wx.h"
  41 #include "bcm43xx_main.h"
  42 #include "bcm43xx_radio.h"
  43 #include "bcm43xx_phy.h"
  44
  45
  46 /* The WIRELESS_EXT version, which is implemented by this driver. */
  47 #define BCM43xx_WX_VERSION      18
  48
  49 #define MAX_WX_STRING           80
  50
  51
  52 static int bcm43xx_wx_get_name(struct net_device *net_dev,
  53                                struct iw_request_info *info,
  54                                union iwreq_data *data,
  55                                char *extra)
  56 {
  57         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
  58         unsigned long flags;
  59         int i;
  60         struct bcm43xx_phyinfo *phy;
  61         char suffix[7] = { 0 };
  62         int have_a = 0, have_b = 0, have_g = 0;
  63
  64         bcm43xx_lock(bcm, flags);
  65         for (i = 0; i < bcm->nr_80211_available; i++) {
  66                 phy = &(bcm->core_80211_ext[i].phy);
  67                 switch (phy->type) {
  68                 case BCM43xx_PHYTYPE_A:
  69                         have_a = 1;
  70                         break;
  71                 case BCM43xx_PHYTYPE_G:
  72                         have_g = 1;
  73                 case BCM43xx_PHYTYPE_B:
  74                         have_b = 1;
  75                         break;
  76                 default:
  77                         assert(0);
  78                 }
  79         }
  80         bcm43xx_unlock(bcm, flags);
  81
  82         i = 0;
  83         if (have_a) {
  84                 suffix[i++] = 'a';
  85                 suffix[i++] = '/';
  86         }
  87         if (have_b) {
  88                 suffix[i++] = 'b';
  89                 suffix[i++] = '/';
  90         }
  91         if (have_g) {
  92                 suffix[i++] = 'g';
  93                 suffix[i++] = '/';
  94         }
  95         if (i != 0)
  96                 suffix[i - 1] = '\0';
  97
  98         snprintf(data->name, IFNAMSIZ, "IEEE 802.11%s", suffix);
  99
 100         return 0;
 101 }
 102
 103 static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
 104                                       struct iw_request_info *info,
 105                                       union iwreq_data *data,
 106                                       char *extra)
 107 {
 108         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 109         unsigned long flags;
 110         u8 channel;
 111         int freq;
 112         int err = -EINVAL;
 113
 114         bcm43xx_lock_mmio(bcm, flags);
 115         if ((data->freq.m >= 0) && (data->freq.m <= 1000)) {
 116                 channel = data->freq.m;
 117                 freq = bcm43xx_channel_to_freq(bcm, channel);
 118         } else {
 119                 channel = bcm43xx_freq_to_channel(bcm, data->freq.m);
 120                 freq = data->freq.m;
 121         }
 122         if (!bcm43xx_is_valid_channel(bcm, channel))
 123                 goto out_unlock;
 124         if (bcm->initialized) {
 125                 //ieee80211softmac_disassoc(softmac, $REASON);
 126                 bcm43xx_mac_suspend(bcm);
 127                 err = bcm43xx_radio_selectchannel(bcm, channel, 0);
 128                 bcm43xx_mac_enable(bcm);
 129         } else {
 130                 bcm43xx_current_radio(bcm)->initial_channel = channel;
 131                 err = 0;
 132         }
 133 out_unlock:
 134         bcm43xx_unlock_mmio(bcm, flags);
 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         unsigned long flags;
 147         int err = -ENODEV;
 148         u16 channel;
 149
 150         bcm43xx_lock(bcm, flags);
 151         radio = bcm43xx_current_radio(bcm);
 152         channel = radio->channel;
 153         if (channel == 0xFF) {
 154                 assert(!bcm->initialized);
 155                 channel = radio->initial_channel;
 156                 if (channel == 0xFF)
 157                         goto out_unlock;
 158         }
 159         assert(channel > 0 && channel <= 1000);
 160         data->freq.e = 1;
 161         data->freq.m = bcm43xx_channel_to_freq(bcm, channel) * 100000;
 162         data->freq.flags = 1;
 163
 164         err = 0;
 165 out_unlock:
 166         bcm43xx_unlock(bcm, flags);
 167
 168         return err;
 169 }
 170
 171 static int bcm43xx_wx_set_mode(struct net_device *net_dev,
 172                                struct iw_request_info *info,
 173                                union iwreq_data *data,
 174                                char *extra)
 175 {
 176         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 177         unsigned long flags;
 178         int mode;
 179
 180         mode = data->mode;
 181         if (mode == IW_MODE_AUTO)
 182                 mode = BCM43xx_INITIAL_IWMODE;
 183
 184         bcm43xx_lock_mmio(bcm, flags);
 185         if (bcm->initialized) {
 186                 if (bcm->ieee->iw_mode != mode)
 187                         bcm43xx_set_iwmode(bcm, mode);
 188         } else
 189                 bcm->ieee->iw_mode = mode;
 190         bcm43xx_unlock_mmio(bcm, flags);
 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         unsigned long flags;
 202
 203         bcm43xx_lock(bcm, flags);
 204         data->mode = bcm->ieee->iw_mode;
 205         bcm43xx_unlock(bcm, flags);
 206
 207         return 0;
 208 }
 209
 210 static int bcm43xx_wx_get_rangeparams(struct net_device *net_dev,
 211                                       struct iw_request_info *info,
 212                                       union iwreq_data *data,
 213                                       char *extra)
 214 {
 215         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 216         struct iw_range *range = (struct iw_range *)extra;
 217         const struct ieee80211_geo *geo;
 218         unsigned long flags;
 219         int i, j;
 220         struct bcm43xx_phyinfo *phy;
 221
 222         data->data.length = sizeof(*range);
 223         memset(range, 0, sizeof(*range));
 224
 225         //TODO: What about 802.11b?
 226         /* 54Mb/s == ~27Mb/s payload throughput (802.11g) */
 227         range->throughput = 27 * 1000 * 1000;
 228
 229         range->max_qual.qual = 100;
 230         /* TODO: Real max RSSI */
 231         range->max_qual.level = 3;
 232         range->max_qual.noise = 100;
 233         range->max_qual.updated = 7;
 234
 235         range->avg_qual.qual = 70;
 236         range->avg_qual.level = 2;
 237         range->avg_qual.noise = 40;
 238         range->avg_qual.updated = 7;
 239
 240         range->min_rts = BCM43xx_MIN_RTS_THRESHOLD;
 241         range->max_rts = BCM43xx_MAX_RTS_THRESHOLD;
 242         range->min_frag = MIN_FRAG_THRESHOLD;
 243         range->max_frag = MAX_FRAG_THRESHOLD;
 244
 245         range->encoding_size[0] = 5;
 246         range->encoding_size[1] = 13;
 247         range->num_encoding_sizes = 2;
 248         range->max_encoding_tokens = WEP_KEYS;
 249
 250         range->we_version_compiled = WIRELESS_EXT;
 251         range->we_version_source = BCM43xx_WX_VERSION;
 252
 253         range->enc_capa = IW_ENC_CAPA_WPA |
 254                           IW_ENC_CAPA_WPA2 |
 255                           IW_ENC_CAPA_CIPHER_TKIP |
 256                           IW_ENC_CAPA_CIPHER_CCMP;
 257
 258         bcm43xx_lock(bcm, flags);
 259         phy = bcm43xx_current_phy(bcm);
 260
 261         range->num_bitrates = 0;
 262         i = 0;
 263         if (phy->type == BCM43xx_PHYTYPE_A ||
 264             phy->type == BCM43xx_PHYTYPE_G) {
 265                 range->num_bitrates = 8;
 266                 range->bitrate[i++] = IEEE80211_OFDM_RATE_6MB;
 267                 range->bitrate[i++] = IEEE80211_OFDM_RATE_9MB;
 268                 range->bitrate[i++] = IEEE80211_OFDM_RATE_12MB;
 269                 range->bitrate[i++] = IEEE80211_OFDM_RATE_18MB;
 270                 range->bitrate[i++] = IEEE80211_OFDM_RATE_24MB;
 271                 range->bitrate[i++] = IEEE80211_OFDM_RATE_36MB;
 272                 range->bitrate[i++] = IEEE80211_OFDM_RATE_48MB;
 273                 range->bitrate[i++] = IEEE80211_OFDM_RATE_54MB;
 274         }
 275         if (phy->type == BCM43xx_PHYTYPE_B ||
 276             phy->type == BCM43xx_PHYTYPE_G) {
 277                 range->num_bitrates += 4;
 278                 range->bitrate[i++] = IEEE80211_CCK_RATE_1MB;
 279                 range->bitrate[i++] = IEEE80211_CCK_RATE_2MB;
 280                 range->bitrate[i++] = IEEE80211_CCK_RATE_5MB;
 281                 range->bitrate[i++] = IEEE80211_CCK_RATE_11MB;
 282         }
 283
 284         geo = ieee80211_get_geo(bcm->ieee);
 285         range->num_channels = geo->a_channels + geo->bg_channels;
 286         j = 0;
 287         for (i = 0; i < geo->a_channels; i++) {
 288                 if (j == IW_MAX_FREQUENCIES)
 289                         break;
 290                 range->freq[j].i = j + 1;
 291                 range->freq[j].m = geo->a[i].freq;//FIXME?
 292                 range->freq[j].e = 1;
 293                 j++;
 294         }
 295         for (i = 0; i < geo->bg_channels; i++) {
 296                 if (j == IW_MAX_FREQUENCIES)
 297                         break;
 298                 range->freq[j].i = j + 1;
 299                 range->freq[j].m = geo->bg[i].freq;//FIXME?
 300                 range->freq[j].e = 1;
 301                 j++;
 302         }
 303         range->num_frequency = j;
 304
 305         bcm43xx_unlock(bcm, flags);
 306
 307         return 0;
 308 }
 309
 310 static int bcm43xx_wx_set_nick(struct net_device *net_dev,
 311                                struct iw_request_info *info,
 312                                union iwreq_data *data,
 313                                char *extra)
 314 {
 315         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 316         unsigned long flags;
 317         size_t len;
 318
 319         bcm43xx_lock(bcm, flags);
 320         len =  min((size_t)data->data.length, (size_t)IW_ESSID_MAX_SIZE);
 321         memcpy(bcm->nick, extra, len);
 322         bcm->nick[len] = '\0';
 323         bcm43xx_unlock(bcm, flags);
 324
 325         return 0;
 326 }
 327
 328 static int bcm43xx_wx_get_nick(struct net_device *net_dev,
 329                                struct iw_request_info *info,
 330                                union iwreq_data *data,
 331                                char *extra)
 332 {
 333         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 334         unsigned long flags;
 335         size_t len;
 336
 337         bcm43xx_lock(bcm, flags);
 338         len = strlen(bcm->nick) + 1;
 339         memcpy(extra, bcm->nick, len);
 340         data->data.length = (__u16)len;
 341         data->data.flags = 1;
 342         bcm43xx_unlock(bcm, flags);
 343
 344         return 0;
 345 }
 346
 347 static int bcm43xx_wx_set_rts(struct net_device *net_dev,
 348                               struct iw_request_info *info,
 349                               union iwreq_data *data,
 350                               char *extra)
 351 {
 352         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 353         unsigned long flags;
 354         int err = -EINVAL;
 355
 356         bcm43xx_lock(bcm, flags);
 357         if (data->rts.disabled) {
 358                 bcm->rts_threshold = BCM43xx_MAX_RTS_THRESHOLD;
 359                 err = 0;
 360         } else {
 361                 if (data->rts.value >= BCM43xx_MIN_RTS_THRESHOLD &&
 362                     data->rts.value <= BCM43xx_MAX_RTS_THRESHOLD) {
 363                         bcm->rts_threshold = data->rts.value;
 364                         err = 0;
 365                 }
 366         }
 367         bcm43xx_unlock(bcm, flags);
 368
 369         return err;
 370 }
 371
 372 static int bcm43xx_wx_get_rts(struct net_device *net_dev,
 373                               struct iw_request_info *info,
 374                               union iwreq_data *data,
 375                               char *extra)
 376 {
 377         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 378         unsigned long flags;
 379
 380         bcm43xx_lock(bcm, flags);
 381         data->rts.value = bcm->rts_threshold;
 382         data->rts.fixed = 0;
 383         data->rts.disabled = (bcm->rts_threshold == BCM43xx_MAX_RTS_THRESHOLD);
 384         bcm43xx_unlock(bcm, flags);
 385
 386         return 0;
 387 }
 388
 389 static int bcm43xx_wx_set_frag(struct net_device *net_dev,
 390                                struct iw_request_info *info,
 391                                union iwreq_data *data,
 392                                char *extra)
 393 {
 394         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 395         unsigned long flags;
 396         int err = -EINVAL;
 397
 398         bcm43xx_lock(bcm, flags);
 399         if (data->frag.disabled) {
 400                 bcm->ieee->fts = MAX_FRAG_THRESHOLD;
 401                 err = 0;
 402         } else {
 403                 if (data->frag.value >= MIN_FRAG_THRESHOLD &&
 404                     data->frag.value <= MAX_FRAG_THRESHOLD) {
 405                         bcm->ieee->fts = data->frag.value & ~0x1;
 406                         err = 0;
 407                 }
 408         }
 409         bcm43xx_unlock(bcm, flags);
 410
 411         return err;
 412 }
 413
 414 static int bcm43xx_wx_get_frag(struct net_device *net_dev,
 415                                struct iw_request_info *info,
 416                                union iwreq_data *data,
 417                                char *extra)
 418 {
 419         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 420         unsigned long flags;
 421
 422         bcm43xx_lock(bcm, flags);
 423         data->frag.value = bcm->ieee->fts;
 424         data->frag.fixed = 0;
 425         data->frag.disabled = (bcm->ieee->fts == MAX_FRAG_THRESHOLD);
 426         bcm43xx_unlock(bcm, flags);
 427
 428         return 0;
 429 }
 430
 431 static int bcm43xx_wx_set_xmitpower(struct net_device *net_dev,
 432                                     struct iw_request_info *info,
 433                                     union iwreq_data *data,
 434                                     char *extra)
 435 {
 436         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 437         struct bcm43xx_radioinfo *radio;
 438         struct bcm43xx_phyinfo *phy;
 439         unsigned long flags;
 440         int err = -ENODEV;
 441         u16 maxpower;
 442
 443         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) {
 444                 printk(PFX KERN_ERR "TX power not in dBm.\n");
 445                 return -EOPNOTSUPP;
 446         }
 447
 448         bcm43xx_lock_mmio(bcm, flags);
 449         if (!bcm->initialized)
 450                 goto out_unlock;
 451         radio = bcm43xx_current_radio(bcm);
 452         phy = bcm43xx_current_phy(bcm);
 453         if (data->txpower.disabled != (!(radio->enabled))) {
 454                 if (data->txpower.disabled)
 455                         bcm43xx_radio_turn_off(bcm);
 456                 else
 457                         bcm43xx_radio_turn_on(bcm);
 458         }
 459         if (data->txpower.value > 0) {
 460                 /* desired and maxpower dBm values are in Q5.2 */
 461                 if (phy->type == BCM43xx_PHYTYPE_A)
 462                         maxpower = bcm->sprom.maxpower_aphy;
 463                 else
 464                         maxpower = bcm->sprom.maxpower_bgphy;
 465                 radio->txpower_desired = limit_value(data->txpower.value << 2,
 466                                                      0, maxpower);
 467                 bcm43xx_phy_xmitpower(bcm);
 468         }
 469         err = 0;
 470
 471 out_unlock:
 472         bcm43xx_unlock_mmio(bcm, flags);
 473
 474         return err;
 475 }
 476
 477 static int bcm43xx_wx_get_xmitpower(struct net_device *net_dev,
 478                                     struct iw_request_info *info,
 479                                     union iwreq_data *data,
 480                                     char *extra)
 481 {
 482         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 483         struct bcm43xx_radioinfo *radio;
 484         unsigned long flags;
 485         int err = -ENODEV;
 486
 487         bcm43xx_lock(bcm, flags);
 488         if (!bcm->initialized)
 489                 goto out_unlock;
 490         radio = bcm43xx_current_radio(bcm);
 491         /* desired dBm value is in Q5.2 */
 492         data->txpower.value = radio->txpower_desired >> 2;
 493         data->txpower.fixed = 1;
 494         data->txpower.flags = IW_TXPOW_DBM;
 495         data->txpower.disabled = !(radio->enabled);
 496
 497         err = 0;
 498 out_unlock:
 499         bcm43xx_unlock(bcm, flags);
 500
 501         return err;
 502 }
 503
 504 static int bcm43xx_wx_set_encoding(struct net_device *net_dev,
 505                                    struct iw_request_info *info,
 506                                    union iwreq_data *data,
 507                                    char *extra)
 508 {
 509         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 510         int err;
 511
 512         err = ieee80211_wx_set_encode(bcm->ieee, info, data, extra);
 513
 514         return err;
 515 }
 516
 517 static int bcm43xx_wx_set_encodingext(struct net_device *net_dev,
 518                                    struct iw_request_info *info,
 519                                    union iwreq_data *data,
 520                                    char *extra)
 521 {
 522         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 523         int err;
 524
 525         err = ieee80211_wx_set_encodeext(bcm->ieee, info, data, extra);
 526
 527         return err;
 528 }
 529
 530 static int bcm43xx_wx_get_encoding(struct net_device *net_dev,
 531                                    struct iw_request_info *info,
 532                                    union iwreq_data *data,
 533                                    char *extra)
 534 {
 535         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 536         int err;
 537
 538         err = ieee80211_wx_get_encode(bcm->ieee, info, data, extra);
 539
 540         return err;
 541 }
 542
 543 static int bcm43xx_wx_get_encodingext(struct net_device *net_dev,
 544                                    struct iw_request_info *info,
 545                                    union iwreq_data *data,
 546                                    char *extra)
 547 {
 548         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 549         int err;
 550
 551         err = ieee80211_wx_get_encodeext(bcm->ieee, info, data, extra);
 552
 553         return err;
 554 }
 555
 556 static int bcm43xx_wx_set_interfmode(struct net_device *net_dev,
 557                                      struct iw_request_info *info,
 558                                      union iwreq_data *data,
 559                                      char *extra)
 560 {
 561         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 562         unsigned long flags;
 563         int mode, err = 0;
 564
 565         mode = *((int *)extra);
 566         switch (mode) {
 567         case 0:
 568                 mode = BCM43xx_RADIO_INTERFMODE_NONE;
 569                 break;
 570         case 1:
 571                 mode = BCM43xx_RADIO_INTERFMODE_NONWLAN;
 572                 break;
 573         case 2:
 574                 mode = BCM43xx_RADIO_INTERFMODE_MANUALWLAN;
 575                 break;
 576         case 3:
 577                 mode = BCM43xx_RADIO_INTERFMODE_AUTOWLAN;
 578                 break;
 579         default:
 580                 printk(KERN_ERR PFX "set_interfmode allowed parameters are: "
 581                                     "0 => None,  1 => Non-WLAN,  2 => WLAN,  "
 582                                     "3 => Auto-WLAN\n");
 583                 return -EINVAL;
 584         }
 585
 586         bcm43xx_lock_mmio(bcm, flags);
 587         if (bcm->initialized) {
 588                 err = bcm43xx_radio_set_interference_mitigation(bcm, mode);
 589                 if (err) {
 590                         printk(KERN_ERR PFX "Interference Mitigation not "
 591                                             "supported by device\n");
 592                 }
 593         } else {
 594                 if (mode == BCM43xx_RADIO_INTERFMODE_AUTOWLAN) {
 595                         printk(KERN_ERR PFX "Interference Mitigation mode Auto-WLAN "
 596                                             "not supported while the interface is down.\n");
 597                         err = -ENODEV;
 598                 } else
 599                         bcm43xx_current_radio(bcm)->interfmode = mode;
 600         }
 601         bcm43xx_unlock_mmio(bcm, flags);
 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         unsigned long flags;
 613         int mode;
 614
 615         bcm43xx_lock(bcm, flags);
 616         mode = bcm43xx_current_radio(bcm)->interfmode;
 617         bcm43xx_unlock(bcm, flags);
 618
 619         switch (mode) {
 620         case BCM43xx_RADIO_INTERFMODE_NONE:
 621                 strncpy(extra, "0 (No Interference Mitigation)", MAX_WX_STRING);
 622                 break;
 623         case BCM43xx_RADIO_INTERFMODE_NONWLAN:
 624                 strncpy(extra, "1 (Non-WLAN Interference Mitigation)", MAX_WX_STRING);
 625                 break;
 626         case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
 627                 strncpy(extra, "2 (WLAN Interference Mitigation)", MAX_WX_STRING);
 628                 break;
 629         default:
 630                 assert(0);
 631         }
 632         data->data.length = strlen(extra) + 1;
 633
 634         return 0;
 635 }
 636
 637 static int bcm43xx_wx_set_shortpreamble(struct net_device *net_dev,
 638                                         struct iw_request_info *info,
 639                                         union iwreq_data *data,
 640                                         char *extra)
 641 {
 642         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 643         unsigned long flags;
 644         int on;
 645
 646         on = *((int *)extra);
 647         bcm43xx_lock(bcm, flags);
 648         bcm->short_preamble = !!on;
 649         bcm43xx_unlock(bcm, flags);
 650
 651         return 0;
 652 }
 653
 654 static int bcm43xx_wx_get_shortpreamble(struct net_device *net_dev,
 655                                         struct iw_request_info *info,
 656                                         union iwreq_data *data,
 657                                         char *extra)
 658 {
 659         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 660         unsigned long flags;
 661         int on;
 662
 663         bcm43xx_lock(bcm, flags);
 664         on = bcm->short_preamble;
 665         bcm43xx_unlock(bcm, flags);
 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         bcm43xx_lock(bcm, flags);
 688         bcm->ieee->host_encrypt = !!on;
 689         bcm->ieee->host_decrypt = !!on;
 690         bcm->ieee->host_build_iv = !on;
 691         bcm43xx_unlock(bcm, flags);
 692
 693         return 0;
 694 }
 695
 696 static int bcm43xx_wx_get_swencryption(struct net_device *net_dev,
 697                                        struct iw_request_info *info,
 698                                        union iwreq_data *data,
 699                                        char *extra)
 700 {
 701         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 702         unsigned long flags;
 703         int on;
 704
 705         bcm43xx_lock(bcm, flags);
 706         on = bcm->ieee->host_encrypt;
 707         bcm43xx_unlock(bcm, flags);
 708
 709         if (on)
 710                 strncpy(extra, "1 (SW encryption enabled) ", MAX_WX_STRING);
 711         else
 712                 strncpy(extra, "0 (SW encryption disabled) ", MAX_WX_STRING);
 713         data->data.length = strlen(extra + 1);
 714
 715         return 0;
 716 }
 717
 718 /* Enough buffer to hold a hexdump of the sprom data. */
 719 #define SPROM_BUFFERSIZE        512
 720
 721 static int sprom2hex(const u16 *sprom, char *dump)
 722 {
 723         int i, pos = 0;
 724
 725         for (i = 0; i < BCM43xx_SPROM_SIZE; i++) {
 726                 pos += snprintf(dump + pos, SPROM_BUFFERSIZE - pos - 1,
 727                                 "%04X", swab16(sprom[i]) & 0xFFFF);
 728         }
 729
 730         return pos + 1;
 731 }
 732
 733 static int hex2sprom(u16 *sprom, const char *dump, unsigned int len)
 734 {
 735         char tmp[5] = { 0 };
 736         int cnt = 0;
 737         unsigned long parsed;
 738
 739         if (len < BCM43xx_SPROM_SIZE * sizeof(u16) * 2)
 740                 return -EINVAL;
 741         while (cnt < BCM43xx_SPROM_SIZE) {
 742                 memcpy(tmp, dump, 4);
 743                 dump += 4;
 744                 parsed = simple_strtoul(tmp, NULL, 16);
 745                 sprom[cnt++] = swab16((u16)parsed);
 746         }
 747
 748         return 0;
 749 }
 750
 751 static int bcm43xx_wx_sprom_read(struct net_device *net_dev,
 752                                  struct iw_request_info *info,
 753                                  union iwreq_data *data,
 754                                  char *extra)
 755 {
 756         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 757         int err = -EPERM;
 758         u16 *sprom;
 759         unsigned long flags;
 760
 761         if (!capable(CAP_SYS_RAWIO))
 762                 goto out;
 763
 764         err = -ENOMEM;
 765         sprom = kmalloc(BCM43xx_SPROM_SIZE * sizeof(*sprom),
 766                         GFP_KERNEL);
 767         if (!sprom)
 768                 goto out;
 769
 770         bcm43xx_lock_mmio(bcm, flags);
 771         err = -ENODEV;
 772         if (bcm->initialized)
 773                 err = bcm43xx_sprom_read(bcm, sprom);
 774         bcm43xx_unlock_mmio(bcm, flags);
 775         if (!err)
 776                 data->data.length = sprom2hex(sprom, extra);
 777         kfree(sprom);
 778 out:
 779         return err;
 780 }
 781
 782 static int bcm43xx_wx_sprom_write(struct net_device *net_dev,
 783                                   struct iw_request_info *info,
 784                                   union iwreq_data *data,
 785                                   char *extra)
 786 {
 787         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 788         int err = -EPERM;
 789         u16 *sprom;
 790         unsigned long flags;
 791         char *input;
 792         unsigned int len;
 793
 794         if (!capable(CAP_SYS_RAWIO))
 795                 goto out;
 796
 797         err = -ENOMEM;
 798         sprom = kmalloc(BCM43xx_SPROM_SIZE * sizeof(*sprom),
 799                         GFP_KERNEL);
 800         if (!sprom)
 801                 goto out;
 802
 803         len = data->data.length;
 804         extra[len - 1] = '\0';
 805         input = strchr(extra, ':');
 806         if (input) {
 807                 input++;
 808                 len -= input - extra;
 809         } else
 810                 input = extra;
 811         err = hex2sprom(sprom, input, len);
 812         if (err)
 813                 goto out_kfree;
 814
 815         bcm43xx_lock_mmio(bcm, flags);
 816         err = -ENODEV;
 817         if (bcm->initialized)
 818                 err = bcm43xx_sprom_write(bcm, sprom);
 819         bcm43xx_unlock_mmio(bcm, flags);
 820 out_kfree:
 821         kfree(sprom);
 822 out:
 823         return err;
 824 }
 825
 826 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
 827
 828 static struct iw_statistics *bcm43xx_get_wireless_stats(struct net_device *net_dev)
 829 {
 830         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
 831         struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
 832         struct iw_statistics *wstats;
 833
 834         wstats = &bcm->stats.wstats;
 835         if (!mac->associated) {
 836                 wstats->miss.beacon = 0;
 837 //              bcm->ieee->ieee_stats.tx_retry_limit_exceeded = 0; // FIXME: should this be cleared here?
 838                 wstats->discard.retries = 0;
 839 //              bcm->ieee->ieee_stats.tx_discards_wrong_sa = 0; // FIXME: same question
 840                 wstats->discard.nwid = 0;
 841 //              bcm->ieee->ieee_stats.rx_discards_undecryptable = 0; // FIXME: ditto
 842                 wstats->discard.code = 0;
 843 //              bcm->ieee->ieee_stats.rx_fragments = 0;  // FIXME: same here
 844                 wstats->discard.fragment = 0;
 845                 wstats->discard.misc = 0;
 846                 wstats->qual.qual = 0;
 847                 wstats->qual.level = 0;
 848                 wstats->qual.noise = 0;
 849                 wstats->qual.updated = 7;
 850                 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
 851                         IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
 852                 return wstats;
 853         }
 854         /* fill in the real statistics when iface associated */
 855         wstats->qual.qual = 100;     // TODO: get the real signal quality
 856         wstats->qual.level = 3 - bcm->stats.link_quality;
 857         wstats->qual.noise = bcm->stats.noise;
 858         wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
 859                         IW_QUAL_NOISE_UPDATED;
 860         wstats->discard.code = bcm->ieee->ieee_stats.rx_discards_undecryptable;
 861         wstats->discard.retries = bcm->ieee->ieee_stats.tx_retry_limit_exceeded;
 862         wstats->discard.nwid = bcm->ieee->ieee_stats.tx_discards_wrong_sa;
 863         wstats->discard.fragment = bcm->ieee->ieee_stats.rx_fragments;
 864         wstats->discard.misc = 0;       // FIXME
 865         wstats->miss.beacon = 0;        // FIXME
 866         return wstats;
 867 }
 868
 869
 870 #ifdef WX
 871 # undef WX
 872 #endif
 873 #define WX(ioctl)  [(ioctl) - SIOCSIWCOMMIT]
 874 static const iw_handler bcm43xx_wx_handlers[] = {
 875         /* Wireless Identification */
 876         WX(SIOCGIWNAME)         = bcm43xx_wx_get_name,
 877         /* Basic operations */
 878         WX(SIOCSIWFREQ)         = bcm43xx_wx_set_channelfreq,
 879         WX(SIOCGIWFREQ)         = bcm43xx_wx_get_channelfreq,
 880         WX(SIOCSIWMODE)         = bcm43xx_wx_set_mode,
 881         WX(SIOCGIWMODE)         = bcm43xx_wx_get_mode,
 882         /* Informative stuff */
 883         WX(SIOCGIWRANGE)        = bcm43xx_wx_get_rangeparams,
 884         /* Access Point manipulation */
 885         WX(SIOCSIWAP)           = ieee80211softmac_wx_set_wap,
 886         WX(SIOCGIWAP)           = ieee80211softmac_wx_get_wap,
 887         WX(SIOCSIWSCAN)         = ieee80211softmac_wx_trigger_scan,
 888         WX(SIOCGIWSCAN)         = ieee80211softmac_wx_get_scan_results,
 889         /* 802.11 specific support */
 890         WX(SIOCSIWESSID)        = ieee80211softmac_wx_set_essid,
 891         WX(SIOCGIWESSID)        = ieee80211softmac_wx_get_essid,
 892         WX(SIOCSIWNICKN)        = bcm43xx_wx_set_nick,
 893         WX(SIOCGIWNICKN)        = bcm43xx_wx_get_nick,
 894         /* Other parameters */
 895         WX(SIOCSIWRATE)         = ieee80211softmac_wx_set_rate,
 896         WX(SIOCGIWRATE)         = ieee80211softmac_wx_get_rate,
 897         WX(SIOCSIWRTS)          = bcm43xx_wx_set_rts,
 898         WX(SIOCGIWRTS)          = bcm43xx_wx_get_rts,
 899         WX(SIOCSIWFRAG)         = bcm43xx_wx_set_frag,
 900         WX(SIOCGIWFRAG)         = bcm43xx_wx_get_frag,
 901         WX(SIOCSIWTXPOW)        = bcm43xx_wx_set_xmitpower,
 902         WX(SIOCGIWTXPOW)        = bcm43xx_wx_get_xmitpower,
 903 //TODO  WX(SIOCSIWRETRY)        = bcm43xx_wx_set_retry,
 904 //TODO  WX(SIOCGIWRETRY)        = bcm43xx_wx_get_retry,
 905         /* Encoding */
 906         WX(SIOCSIWENCODE)       = bcm43xx_wx_set_encoding,
 907         WX(SIOCGIWENCODE)       = bcm43xx_wx_get_encoding,
 908         WX(SIOCSIWENCODEEXT)    = bcm43xx_wx_set_encodingext,
 909         WX(SIOCGIWENCODEEXT)    = bcm43xx_wx_get_encodingext,
 910         /* Power saving */
 911 //TODO  WX(SIOCSIWPOWER)        = bcm43xx_wx_set_power,
 912 //TODO  WX(SIOCGIWPOWER)        = bcm43xx_wx_get_power,
 913         WX(SIOCSIWGENIE)        = ieee80211softmac_wx_set_genie,
 914         WX(SIOCGIWGENIE)        = ieee80211softmac_wx_get_genie,
 915         WX(SIOCSIWAUTH)         = ieee80211_wx_set_auth,
 916         WX(SIOCGIWAUTH)         = ieee80211_wx_get_auth,
 917 };
 918 #undef WX
 919
 920 static const iw_handler bcm43xx_priv_wx_handlers[] = {
 921         /* Set Interference Mitigation Mode. */
 922         bcm43xx_wx_set_interfmode,
 923         /* Get Interference Mitigation Mode. */
 924         bcm43xx_wx_get_interfmode,
 925         /* Enable/Disable Short Preamble mode. */
 926         bcm43xx_wx_set_shortpreamble,
 927         /* Get Short Preamble mode. */
 928         bcm43xx_wx_get_shortpreamble,
 929         /* Enable/Disable Software Encryption mode */
 930         bcm43xx_wx_set_swencryption,
 931         /* Get Software Encryption mode */
 932         bcm43xx_wx_get_swencryption,
 933         /* Write SRPROM data. */
 934         bcm43xx_wx_sprom_write,
 935         /* Read SPROM data. */
 936         bcm43xx_wx_sprom_read,
 937 };
 938
 939 #define PRIV_WX_SET_INTERFMODE          (SIOCIWFIRSTPRIV + 0)
 940 #define PRIV_WX_GET_INTERFMODE          (SIOCIWFIRSTPRIV + 1)
 941 #define PRIV_WX_SET_SHORTPREAMBLE       (SIOCIWFIRSTPRIV + 2)
 942 #define PRIV_WX_GET_SHORTPREAMBLE       (SIOCIWFIRSTPRIV + 3)
 943 #define PRIV_WX_SET_SWENCRYPTION        (SIOCIWFIRSTPRIV + 4)
 944 #define PRIV_WX_GET_SWENCRYPTION        (SIOCIWFIRSTPRIV + 5)
 945 #define PRIV_WX_SPROM_WRITE             (SIOCIWFIRSTPRIV + 6)
 946 #define PRIV_WX_SPROM_READ              (SIOCIWFIRSTPRIV + 7)
 947
 948 #define PRIV_WX_DUMMY(ioctl)    \
 949         {                                       \
 950                 .cmd            = (ioctl),      \
 951                 .name           = "__unused"    \
 952         }
 953
 954 static const struct iw_priv_args bcm43xx_priv_wx_args[] = {
 955         {
 956                 .cmd            = PRIV_WX_SET_INTERFMODE,
 957                 .set_args       = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 958                 .name           = "set_interfmode",
 959         },
 960         {
 961                 .cmd            = PRIV_WX_GET_INTERFMODE,
 962                 .get_args       = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
 963                 .name           = "get_interfmode",
 964         },
 965         {
 966                 .cmd            = PRIV_WX_SET_SHORTPREAMBLE,
 967                 .set_args       = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 968                 .name           = "set_shortpreamb",
 969         },
 970         {
 971                 .cmd            = PRIV_WX_GET_SHORTPREAMBLE,
 972                 .get_args       = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
 973                 .name           = "get_shortpreamb",
 974         },
 975         {
 976                 .cmd            = PRIV_WX_SET_SWENCRYPTION,
 977                 .set_args       = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 978                 .name           = "set_swencrypt",
 979         },
 980         {
 981                 .cmd            = PRIV_WX_GET_SWENCRYPTION,
 982                 .get_args       = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
 983                 .name           = "get_swencrypt",
 984         },
 985         {
 986                 .cmd            = PRIV_WX_SPROM_WRITE,
 987                 .set_args       = IW_PRIV_TYPE_CHAR | SPROM_BUFFERSIZE,
 988                 .name           = "write_sprom",
 989         },
 990         {
 991                 .cmd            = PRIV_WX_SPROM_READ,
 992                 .get_args       = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | SPROM_BUFFERSIZE,
 993                 .name           = "read_sprom",
 994         },
 995 };
 996
 997 const struct iw_handler_def bcm43xx_wx_handlers_def = {
 998         .standard               = bcm43xx_wx_handlers,
 999         .num_standard           = ARRAY_SIZE(bcm43xx_wx_handlers),
1000         .num_private            = ARRAY_SIZE(bcm43xx_priv_wx_handlers),
1001         .num_private_args       = ARRAY_SIZE(bcm43xx_priv_wx_args),
1002         .private                = bcm43xx_priv_wx_handlers,
1003         .private_args           = bcm43xx_priv_wx_args,
1004         .get_wireless_stats     = bcm43xx_get_wireless_stats,
1005 };