drivers/net/wireless/orinoco/hw.c

   1 /* Encapsulate basic setting changes and retrieval on Hermes hardware
   2  *
   3  * See copyright notice in main.c
   4  */
   5 #include <linux/kernel.h>
   6 #include <linux/device.h>
   7 #include <linux/if_arp.h>
   8 #include <linux/ieee80211.h>
   9 #include <linux/wireless.h>
  10 #include <net/cfg80211.h>
  11 #include "hermes.h"
  12 #include "hermes_rid.h"
  13 #include "orinoco.h"
  14
  15 #include "hw.h"
  16
  17 #define SYMBOL_MAX_VER_LEN      (14)
  18
  19 /* Symbol firmware has a bug allocating buffers larger than this */
  20 #define TX_NICBUF_SIZE_BUG      1585
  21
  22 /********************************************************************/
  23 /* Data tables                                                      */
  24 /********************************************************************/
  25
  26 /* This tables gives the actual meanings of the bitrate IDs returned
  27  * by the firmware. */
  28 static const struct {
  29         int bitrate; /* in 100s of kilobits */
  30         int automatic;
  31         u16 agere_txratectrl;
  32         u16 intersil_txratectrl;
  33 } bitrate_table[] = {
  34         {110, 1,  3, 15}, /* Entry 0 is the default */
  35         {10,  0,  1,  1},
  36         {10,  1,  1,  1},
  37         {20,  0,  2,  2},
  38         {20,  1,  6,  3},
  39         {55,  0,  4,  4},
  40         {55,  1,  7,  7},
  41         {110, 0,  5,  8},
  42 };
  43 #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
  44
  45 /* Firmware version encoding */
  46 struct comp_id {
  47         u16 id, variant, major, minor;
  48 } __attribute__ ((packed));
  49
  50 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
  51 {
  52         if (nic_id->id < 0x8000)
  53                 return FIRMWARE_TYPE_AGERE;
  54         else if (nic_id->id == 0x8000 && nic_id->major == 0)
  55                 return FIRMWARE_TYPE_SYMBOL;
  56         else
  57                 return FIRMWARE_TYPE_INTERSIL;
  58 }
  59
  60 /* Set priv->firmware type, determine firmware properties
  61  * This function can be called before we have registerred with netdev,
  62  * so all errors go out with dev_* rather than printk
  63  *
  64  * If non-NULL stores a firmware description in fw_name.
  65  * If non-NULL stores a HW version in hw_ver
  66  *
  67  * These are output via generic cfg80211 ethtool support.
  68  */
  69 int determine_fw_capabilities(struct orinoco_private *priv,
  70                               char *fw_name, size_t fw_name_len,
  71                               u32 *hw_ver)
  72 {
  73         struct device *dev = priv->dev;
  74         hermes_t *hw = &priv->hw;
  75         int err;
  76         struct comp_id nic_id, sta_id;
  77         unsigned int firmver;
  78         char tmp[SYMBOL_MAX_VER_LEN+1] __attribute__((aligned(2)));
  79
  80         /* Get the hardware version */
  81         err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
  82         if (err) {
  83                 dev_err(dev, "Cannot read hardware identity: error %d\n",
  84                         err);
  85                 return err;
  86         }
  87
  88         le16_to_cpus(&nic_id.id);
  89         le16_to_cpus(&nic_id.variant);
  90         le16_to_cpus(&nic_id.major);
  91         le16_to_cpus(&nic_id.minor);
  92         dev_info(dev, "Hardware identity %04x:%04x:%04x:%04x\n",
  93                  nic_id.id, nic_id.variant, nic_id.major, nic_id.minor);
  94
  95         if (hw_ver)
  96                 *hw_ver = (((nic_id.id & 0xff) << 24) |
  97                            ((nic_id.variant & 0xff) << 16) |
  98                            ((nic_id.major & 0xff) << 8) |
  99                            (nic_id.minor & 0xff));
 100
 101         priv->firmware_type = determine_firmware_type(&nic_id);
 102
 103         /* Get the firmware version */
 104         err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
 105         if (err) {
 106                 dev_err(dev, "Cannot read station identity: error %d\n",
 107                         err);
 108                 return err;
 109         }
 110
 111         le16_to_cpus(&sta_id.id);
 112         le16_to_cpus(&sta_id.variant);
 113         le16_to_cpus(&sta_id.major);
 114         le16_to_cpus(&sta_id.minor);
 115         dev_info(dev, "Station identity  %04x:%04x:%04x:%04x\n",
 116                  sta_id.id, sta_id.variant, sta_id.major, sta_id.minor);
 117
 118         switch (sta_id.id) {
 119         case 0x15:
 120                 dev_err(dev, "Primary firmware is active\n");
 121                 return -ENODEV;
 122         case 0x14b:
 123                 dev_err(dev, "Tertiary firmware is active\n");
 124                 return -ENODEV;
 125         case 0x1f:      /* Intersil, Agere, Symbol Spectrum24 */
 126         case 0x21:      /* Symbol Spectrum24 Trilogy */
 127                 break;
 128         default:
 129                 dev_notice(dev, "Unknown station ID, please report\n");
 130                 break;
 131         }
 132
 133         /* Default capabilities */
 134         priv->has_sensitivity = 1;
 135         priv->has_mwo = 0;
 136         priv->has_preamble = 0;
 137         priv->has_port3 = 1;
 138         priv->has_ibss = 1;
 139         priv->has_wep = 0;
 140         priv->has_big_wep = 0;
 141         priv->has_alt_txcntl = 0;
 142         priv->has_ext_scan = 0;
 143         priv->has_wpa = 0;
 144         priv->do_fw_download = 0;
 145
 146         /* Determine capabilities from the firmware version */
 147         switch (priv->firmware_type) {
 148         case FIRMWARE_TYPE_AGERE:
 149                 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
 150                    ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
 151                 if (fw_name)
 152                         snprintf(fw_name, fw_name_len, "Lucent/Agere %d.%02d",
 153                                  sta_id.major, sta_id.minor);
 154
 155                 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
 156
 157                 priv->has_ibss = (firmver >= 0x60006);
 158                 priv->has_wep = (firmver >= 0x40020);
 159                 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
 160                                           Gold cards from the others? */
 161                 priv->has_mwo = (firmver >= 0x60000);
 162                 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
 163                 priv->ibss_port = 1;
 164                 priv->has_hostscan = (firmver >= 0x8000a);
 165                 priv->do_fw_download = 1;
 166                 priv->broken_monitor = (firmver >= 0x80000);
 167                 priv->has_alt_txcntl = (firmver >= 0x90000); /* All 9.x ? */
 168                 priv->has_ext_scan = (firmver >= 0x90000); /* All 9.x ? */
 169                 priv->has_wpa = (firmver >= 0x9002a);
 170                 /* Tested with Agere firmware :
 171                  *      1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
 172                  * Tested CableTron firmware : 4.32 => Anton */
 173                 break;
 174         case FIRMWARE_TYPE_SYMBOL:
 175                 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
 176                 /* Intel MAC : 00:02:B3:* */
 177                 /* 3Com MAC : 00:50:DA:* */
 178                 memset(tmp, 0, sizeof(tmp));
 179                 /* Get the Symbol firmware version */
 180                 err = hermes_read_ltv(hw, USER_BAP,
 181                                       HERMES_RID_SECONDARYVERSION_SYMBOL,
 182                                       SYMBOL_MAX_VER_LEN, NULL, &tmp);
 183                 if (err) {
 184                         dev_warn(dev, "Error %d reading Symbol firmware info. "
 185                                  "Wildly guessing capabilities...\n", err);
 186                         firmver = 0;
 187                         tmp[0] = '\0';
 188                 } else {
 189                         /* The firmware revision is a string, the format is
 190                          * something like : "V2.20-01".
 191                          * Quick and dirty parsing... - Jean II
 192                          */
 193                         firmver = ((tmp[1] - '0') << 16)
 194                                 | ((tmp[3] - '0') << 12)
 195                                 | ((tmp[4] - '0') << 8)
 196                                 | ((tmp[6] - '0') << 4)
 197                                 | (tmp[7] - '0');
 198
 199                         tmp[SYMBOL_MAX_VER_LEN] = '\0';
 200                 }
 201
 202                 if (fw_name)
 203                         snprintf(fw_name, fw_name_len, "Symbol %s", tmp);
 204
 205                 priv->has_ibss = (firmver >= 0x20000);
 206                 priv->has_wep = (firmver >= 0x15012);
 207                 priv->has_big_wep = (firmver >= 0x20000);
 208                 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
 209                                (firmver >= 0x29000 && firmver < 0x30000) ||
 210                                firmver >= 0x31000;
 211                 priv->has_preamble = (firmver >= 0x20000);
 212                 priv->ibss_port = 4;
 213
 214                 /* Symbol firmware is found on various cards, but
 215                  * there has been no attempt to check firmware
 216                  * download on non-spectrum_cs based cards.
 217                  *
 218                  * Given that the Agere firmware download works
 219                  * differently, we should avoid doing a firmware
 220                  * download with the Symbol algorithm on non-spectrum
 221                  * cards.
 222                  *
 223                  * For now we can identify a spectrum_cs based card
 224                  * because it has a firmware reset function.
 225                  */
 226                 priv->do_fw_download = (priv->stop_fw != NULL);
 227
 228                 priv->broken_disableport = (firmver == 0x25013) ||
 229                                 (firmver >= 0x30000 && firmver <= 0x31000);
 230                 priv->has_hostscan = (firmver >= 0x31001) ||
 231                                      (firmver >= 0x29057 && firmver < 0x30000);
 232                 /* Tested with Intel firmware : 0x20015 => Jean II */
 233                 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
 234                 break;
 235         case FIRMWARE_TYPE_INTERSIL:
 236                 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
 237                  * Samsung, Compaq 100/200 and Proxim are slightly
 238                  * different and less well tested */
 239                 /* D-Link MAC : 00:40:05:* */
 240                 /* Addtron MAC : 00:90:D1:* */
 241                 if (fw_name)
 242                         snprintf(fw_name, fw_name_len, "Intersil %d.%d.%d",
 243                                  sta_id.major, sta_id.minor, sta_id.variant);
 244
 245                 firmver = ((unsigned long)sta_id.major << 16) |
 246                         ((unsigned long)sta_id.minor << 8) | sta_id.variant;
 247
 248                 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
 249                 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
 250                 priv->has_pm = (firmver >= 0x000700);
 251                 priv->has_hostscan = (firmver >= 0x010301);
 252
 253                 if (firmver >= 0x000800)
 254                         priv->ibss_port = 0;
 255                 else {
 256                         dev_notice(dev, "Intersil firmware earlier than v0.8.x"
 257                                    " - several features not supported\n");
 258                         priv->ibss_port = 1;
 259                 }
 260                 break;
 261         }
 262         if (fw_name)
 263                 dev_info(dev, "Firmware determined as %s\n", fw_name);
 264
 265 #ifndef CONFIG_HERMES_PRISM
 266         if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
 267                 dev_err(dev, "Support for Prism chipset is not enabled\n");
 268                 return -ENODEV;
 269         }
 270 #endif
 271
 272         return 0;
 273 }
 274
 275 /* Read settings from EEPROM into our private structure.
 276  * MAC address gets dropped into callers buffer
 277  * Can be called before netdev registration.
 278  */
 279 int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
 280 {
 281         struct device *dev = priv->dev;
 282         struct hermes_idstring nickbuf;
 283         hermes_t *hw = &priv->hw;
 284         int len;
 285         int err;
 286         u16 reclen;
 287
 288         /* Get the MAC address */
 289         err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
 290                               ETH_ALEN, NULL, dev_addr);
 291         if (err) {
 292                 dev_warn(dev, "Failed to read MAC address!\n");
 293                 goto out;
 294         }
 295
 296         dev_dbg(dev, "MAC address %pM\n", dev_addr);
 297
 298         /* Get the station name */
 299         err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
 300                               sizeof(nickbuf), &reclen, &nickbuf);
 301         if (err) {
 302                 dev_err(dev, "failed to read station name\n");
 303                 goto out;
 304         }
 305         if (nickbuf.len)
 306                 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
 307         else
 308                 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
 309         memcpy(priv->nick, &nickbuf.val, len);
 310         priv->nick[len] = '\0';
 311
 312         dev_dbg(dev, "Station name \"%s\"\n", priv->nick);
 313
 314         /* Get allowed channels */
 315         err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
 316                                   &priv->channel_mask);
 317         if (err) {
 318                 dev_err(dev, "Failed to read channel list!\n");
 319                 goto out;
 320         }
 321
 322         /* Get initial AP density */
 323         err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
 324                                   &priv->ap_density);
 325         if (err || priv->ap_density < 1 || priv->ap_density > 3)
 326                 priv->has_sensitivity = 0;
 327
 328         /* Get initial RTS threshold */
 329         err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
 330                                   &priv->rts_thresh);
 331         if (err) {
 332                 dev_err(dev, "Failed to read RTS threshold!\n");
 333                 goto out;
 334         }
 335
 336         /* Get initial fragmentation settings */
 337         if (priv->has_mwo)
 338                 err = hermes_read_wordrec(hw, USER_BAP,
 339                                           HERMES_RID_CNFMWOROBUST_AGERE,
 340                                           &priv->mwo_robust);
 341         else
 342                 err = hermes_read_wordrec(hw, USER_BAP,
 343                                           HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
 344                                           &priv->frag_thresh);
 345         if (err) {
 346                 dev_err(dev, "Failed to read fragmentation settings!\n");
 347                 goto out;
 348         }
 349
 350         /* Power management setup */
 351         if (priv->has_pm) {
 352                 priv->pm_on = 0;
 353                 priv->pm_mcast = 1;
 354                 err = hermes_read_wordrec(hw, USER_BAP,
 355                                           HERMES_RID_CNFMAXSLEEPDURATION,
 356                                           &priv->pm_period);
 357                 if (err) {
 358                         dev_err(dev, "Failed to read power management "
 359                                 "period!\n");
 360                         goto out;
 361                 }
 362                 err = hermes_read_wordrec(hw, USER_BAP,
 363                                           HERMES_RID_CNFPMHOLDOVERDURATION,
 364                                           &priv->pm_timeout);
 365                 if (err) {
 366                         dev_err(dev, "Failed to read power management "
 367                                 "timeout!\n");
 368                         goto out;
 369                 }
 370         }
 371
 372         /* Preamble setup */
 373         if (priv->has_preamble) {
 374                 err = hermes_read_wordrec(hw, USER_BAP,
 375                                           HERMES_RID_CNFPREAMBLE_SYMBOL,
 376                                           &priv->preamble);
 377         }
 378
 379 out:
 380         return err;
 381 }
 382
 383 /* Can be called before netdev registration */
 384 int orinoco_hw_allocate_fid(struct orinoco_private *priv)
 385 {
 386         struct device *dev = priv->dev;
 387         struct hermes *hw = &priv->hw;
 388         int err;
 389
 390         err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
 391         if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
 392                 /* Try workaround for old Symbol firmware bug */
 393                 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
 394                 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
 395
 396                 dev_warn(dev, "Firmware ALLOC bug detected "
 397                          "(old Symbol firmware?). Work around %s\n",
 398                          err ? "failed!" : "ok.");
 399         }
 400
 401         return err;
 402 }
 403
 404 int orinoco_get_bitratemode(int bitrate, int automatic)
 405 {
 406         int ratemode = -1;
 407         int i;
 408
 409         if ((bitrate != 10) && (bitrate != 20) &&
 410             (bitrate != 55) && (bitrate != 110))
 411                 return ratemode;
 412
 413         for (i = 0; i < BITRATE_TABLE_SIZE; i++) {
 414                 if ((bitrate_table[i].bitrate == bitrate) &&
 415                     (bitrate_table[i].automatic == automatic)) {
 416                         ratemode = i;
 417                         break;
 418                 }
 419         }
 420         return ratemode;
 421 }
 422
 423 void orinoco_get_ratemode_cfg(int ratemode, int *bitrate, int *automatic)
 424 {
 425         BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
 426
 427         *bitrate = bitrate_table[ratemode].bitrate * 100000;
 428         *automatic = bitrate_table[ratemode].automatic;
 429 }
 430
 431 int orinoco_hw_program_rids(struct orinoco_private *priv)
 432 {
 433         struct net_device *dev = priv->ndev;
 434         struct wireless_dev *wdev = netdev_priv(dev);
 435         hermes_t *hw = &priv->hw;
 436         int err;
 437         struct hermes_idstring idbuf;
 438
 439         /* Set the MAC address */
 440         err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
 441                                HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
 442         if (err) {
 443                 printk(KERN_ERR "%s: Error %d setting MAC address\n",
 444                        dev->name, err);
 445                 return err;
 446         }
 447
 448         /* Set up the link mode */
 449         err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
 450                                    priv->port_type);
 451         if (err) {
 452                 printk(KERN_ERR "%s: Error %d setting port type\n",
 453                        dev->name, err);
 454                 return err;
 455         }
 456         /* Set the channel/frequency */
 457         if (priv->channel != 0 && priv->iw_mode != NL80211_IFTYPE_STATION) {
 458                 err = hermes_write_wordrec(hw, USER_BAP,
 459                                            HERMES_RID_CNFOWNCHANNEL,
 460                                            priv->channel);
 461                 if (err) {
 462                         printk(KERN_ERR "%s: Error %d setting channel %d\n",
 463                                dev->name, err, priv->channel);
 464                         return err;
 465                 }
 466         }
 467
 468         if (priv->has_ibss) {
 469                 u16 createibss;
 470
 471                 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
 472                         printk(KERN_WARNING "%s: This firmware requires an "
 473                                "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
 474                         /* With wvlan_cs, in this case, we would crash.
 475                          * hopefully, this driver will behave better...
 476                          * Jean II */
 477                         createibss = 0;
 478                 } else {
 479                         createibss = priv->createibss;
 480                 }
 481
 482                 err = hermes_write_wordrec(hw, USER_BAP,
 483                                            HERMES_RID_CNFCREATEIBSS,
 484                                            createibss);
 485                 if (err) {
 486                         printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
 487                                dev->name, err);
 488                         return err;
 489                 }
 490         }
 491
 492         /* Set the desired BSSID */
 493         err = __orinoco_hw_set_wap(priv);
 494         if (err) {
 495                 printk(KERN_ERR "%s: Error %d setting AP address\n",
 496                        dev->name, err);
 497                 return err;
 498         }
 499
 500         /* Set the desired ESSID */
 501         idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
 502         memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
 503         /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
 504         err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
 505                         HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
 506                         &idbuf);
 507         if (err) {
 508                 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
 509                        dev->name, err);
 510                 return err;
 511         }
 512         err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
 513                         HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
 514                         &idbuf);
 515         if (err) {
 516                 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
 517                        dev->name, err);
 518                 return err;
 519         }
 520
 521         /* Set the station name */
 522         idbuf.len = cpu_to_le16(strlen(priv->nick));
 523         memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
 524         err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
 525                                HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
 526                                &idbuf);
 527         if (err) {
 528                 printk(KERN_ERR "%s: Error %d setting nickname\n",
 529                        dev->name, err);
 530                 return err;
 531         }
 532
 533         /* Set AP density */
 534         if (priv->has_sensitivity) {
 535                 err = hermes_write_wordrec(hw, USER_BAP,
 536                                            HERMES_RID_CNFSYSTEMSCALE,
 537                                            priv->ap_density);
 538                 if (err) {
 539                         printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
 540                                "Disabling sensitivity control\n",
 541                                dev->name, err);
 542
 543                         priv->has_sensitivity = 0;
 544                 }
 545         }
 546
 547         /* Set RTS threshold */
 548         err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
 549                                    priv->rts_thresh);
 550         if (err) {
 551                 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
 552                        dev->name, err);
 553                 return err;
 554         }
 555
 556         /* Set fragmentation threshold or MWO robustness */
 557         if (priv->has_mwo)
 558                 err = hermes_write_wordrec(hw, USER_BAP,
 559                                            HERMES_RID_CNFMWOROBUST_AGERE,
 560                                            priv->mwo_robust);
 561         else
 562                 err = hermes_write_wordrec(hw, USER_BAP,
 563                                            HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
 564                                            priv->frag_thresh);
 565         if (err) {
 566                 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
 567                        dev->name, err);
 568                 return err;
 569         }
 570
 571         /* Set bitrate */
 572         err = __orinoco_hw_set_bitrate(priv);
 573         if (err) {
 574                 printk(KERN_ERR "%s: Error %d setting bitrate\n",
 575                        dev->name, err);
 576                 return err;
 577         }
 578
 579         /* Set power management */
 580         if (priv->has_pm) {
 581                 err = hermes_write_wordrec(hw, USER_BAP,
 582                                            HERMES_RID_CNFPMENABLED,
 583                                            priv->pm_on);
 584                 if (err) {
 585                         printk(KERN_ERR "%s: Error %d setting up PM\n",
 586                                dev->name, err);
 587                         return err;
 588                 }
 589
 590                 err = hermes_write_wordrec(hw, USER_BAP,
 591                                            HERMES_RID_CNFMULTICASTRECEIVE,
 592                                            priv->pm_mcast);
 593                 if (err) {
 594                         printk(KERN_ERR "%s: Error %d setting up PM\n",
 595                                dev->name, err);
 596                         return err;
 597                 }
 598                 err = hermes_write_wordrec(hw, USER_BAP,
 599                                            HERMES_RID_CNFMAXSLEEPDURATION,
 600                                            priv->pm_period);
 601                 if (err) {
 602                         printk(KERN_ERR "%s: Error %d setting up PM\n",
 603                                dev->name, err);
 604                         return err;
 605                 }
 606                 err = hermes_write_wordrec(hw, USER_BAP,
 607                                            HERMES_RID_CNFPMHOLDOVERDURATION,
 608                                            priv->pm_timeout);
 609                 if (err) {
 610                         printk(KERN_ERR "%s: Error %d setting up PM\n",
 611                                dev->name, err);
 612                         return err;
 613                 }
 614         }
 615
 616         /* Set preamble - only for Symbol so far... */
 617         if (priv->has_preamble) {
 618                 err = hermes_write_wordrec(hw, USER_BAP,
 619                                            HERMES_RID_CNFPREAMBLE_SYMBOL,
 620                                            priv->preamble);
 621                 if (err) {
 622                         printk(KERN_ERR "%s: Error %d setting preamble\n",
 623                                dev->name, err);
 624                         return err;
 625                 }
 626         }
 627
 628         /* Set up encryption */
 629         if (priv->has_wep || priv->has_wpa) {
 630                 err = __orinoco_hw_setup_enc(priv);
 631                 if (err) {
 632                         printk(KERN_ERR "%s: Error %d activating encryption\n",
 633                                dev->name, err);
 634                         return err;
 635                 }
 636         }
 637
 638         if (priv->iw_mode == NL80211_IFTYPE_MONITOR) {
 639                 /* Enable monitor mode */
 640                 dev->type = ARPHRD_IEEE80211;
 641                 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
 642                                             HERMES_TEST_MONITOR, 0, NULL);
 643         } else {
 644                 /* Disable monitor mode */
 645                 dev->type = ARPHRD_ETHER;
 646                 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
 647                                             HERMES_TEST_STOP, 0, NULL);
 648         }
 649         if (err)
 650                 return err;
 651
 652         /* Reset promiscuity / multicast*/
 653         priv->promiscuous = 0;
 654         priv->mc_count = 0;
 655
 656         /* Record mode change */
 657         wdev->iftype = priv->iw_mode;
 658
 659         return 0;
 660 }
 661
 662 /* Get tsc from the firmware */
 663 int orinoco_hw_get_tkip_iv(struct orinoco_private *priv, int key, u8 *tsc)
 664 {
 665         hermes_t *hw = &priv->hw;
 666         int err = 0;
 667         u8 tsc_arr[4][ORINOCO_SEQ_LEN];
 668
 669         if ((key < 0) || (key >= 4))
 670                 return -EINVAL;
 671
 672         err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_TKIP_IV,
 673                               sizeof(tsc_arr), NULL, &tsc_arr);
 674         if (!err)
 675                 memcpy(tsc, &tsc_arr[key][0], sizeof(tsc_arr[0]));
 676
 677         return err;
 678 }
 679
 680 int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
 681 {
 682         hermes_t *hw = &priv->hw;
 683         int ratemode = priv->bitratemode;
 684         int err = 0;
 685
 686         if (ratemode >= BITRATE_TABLE_SIZE) {
 687                 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
 688                        priv->ndev->name, ratemode);
 689                 return -EINVAL;
 690         }
 691
 692         switch (priv->firmware_type) {
 693         case FIRMWARE_TYPE_AGERE:
 694                 err = hermes_write_wordrec(hw, USER_BAP,
 695                                 HERMES_RID_CNFTXRATECONTROL,
 696                                 bitrate_table[ratemode].agere_txratectrl);
 697                 break;
 698         case FIRMWARE_TYPE_INTERSIL:
 699         case FIRMWARE_TYPE_SYMBOL:
 700                 err = hermes_write_wordrec(hw, USER_BAP,
 701                                 HERMES_RID_CNFTXRATECONTROL,
 702                                 bitrate_table[ratemode].intersil_txratectrl);
 703                 break;
 704         default:
 705                 BUG();
 706         }
 707
 708         return err;
 709 }
 710
 711 int orinoco_hw_get_act_bitrate(struct orinoco_private *priv, int *bitrate)
 712 {
 713         hermes_t *hw = &priv->hw;
 714         int i;
 715         int err = 0;
 716         u16 val;
 717
 718         err = hermes_read_wordrec(hw, USER_BAP,
 719                                   HERMES_RID_CURRENTTXRATE, &val);
 720         if (err)
 721                 return err;
 722
 723         switch (priv->firmware_type) {
 724         case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
 725                 /* Note : in Lucent firmware, the return value of
 726                  * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
 727                  * and therefore is totally different from the
 728                  * encoding of HERMES_RID_CNFTXRATECONTROL.
 729                  * Don't forget that 6Mb/s is really 5.5Mb/s */
 730                 if (val == 6)
 731                         *bitrate = 5500000;
 732                 else
 733                         *bitrate = val * 1000000;
 734                 break;
 735         case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
 736         case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
 737                 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
 738                         if (bitrate_table[i].intersil_txratectrl == val)
 739                                 break;
 740
 741                 if (i >= BITRATE_TABLE_SIZE)
 742                         printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
 743                                priv->ndev->name, val);
 744
 745                 *bitrate = bitrate_table[i].bitrate * 100000;
 746                 break;
 747         default:
 748                 BUG();
 749         }
 750
 751         return err;
 752 }
 753
 754 /* Set fixed AP address */
 755 int __orinoco_hw_set_wap(struct orinoco_private *priv)
 756 {
 757         int roaming_flag;
 758         int err = 0;
 759         hermes_t *hw = &priv->hw;
 760
 761         switch (priv->firmware_type) {
 762         case FIRMWARE_TYPE_AGERE:
 763                 /* not supported */
 764                 break;
 765         case FIRMWARE_TYPE_INTERSIL:
 766                 if (priv->bssid_fixed)
 767                         roaming_flag = 2;
 768                 else
 769                         roaming_flag = 1;
 770
 771                 err = hermes_write_wordrec(hw, USER_BAP,
 772                                            HERMES_RID_CNFROAMINGMODE,
 773                                            roaming_flag);
 774                 break;
 775         case FIRMWARE_TYPE_SYMBOL:
 776                 err = HERMES_WRITE_RECORD(hw, USER_BAP,
 777                                           HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
 778                                           &priv->desired_bssid);
 779                 break;
 780         }
 781         return err;
 782 }
 783
 784 /* Change the WEP keys and/or the current keys.  Can be called
 785  * either from __orinoco_hw_setup_enc() or directly from
 786  * orinoco_ioctl_setiwencode().  In the later case the association
 787  * with the AP is not broken (if the firmware can handle it),
 788  * which is needed for 802.1x implementations. */
 789 int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
 790 {
 791         hermes_t *hw = &priv->hw;
 792         int err = 0;
 793         int i;
 794
 795         switch (priv->firmware_type) {
 796         case FIRMWARE_TYPE_AGERE:
 797         {
 798                 struct orinoco_key keys[ORINOCO_MAX_KEYS];
 799
 800                 memset(&keys, 0, sizeof(keys));
 801                 for (i = 0; i < ORINOCO_MAX_KEYS; i++) {
 802                         int len = min(priv->keys[i].key_len,
 803                                       ORINOCO_MAX_KEY_SIZE);
 804                         memcpy(&keys[i].data, priv->keys[i].key, len);
 805                         if (len > SMALL_KEY_SIZE)
 806                                 keys[i].len = cpu_to_le16(LARGE_KEY_SIZE);
 807                         else if (len > 0)
 808                                 keys[i].len = cpu_to_le16(SMALL_KEY_SIZE);
 809                         else
 810                                 keys[i].len = cpu_to_le16(0);
 811                 }
 812
 813                 err = HERMES_WRITE_RECORD(hw, USER_BAP,
 814                                           HERMES_RID_CNFWEPKEYS_AGERE,
 815                                           &keys);
 816                 if (err)
 817                         return err;
 818                 err = hermes_write_wordrec(hw, USER_BAP,
 819                                            HERMES_RID_CNFTXKEY_AGERE,
 820                                            priv->tx_key);
 821                 if (err)
 822                         return err;
 823                 break;
 824         }
 825         case FIRMWARE_TYPE_INTERSIL:
 826         case FIRMWARE_TYPE_SYMBOL:
 827                 {
 828                         int keylen;
 829
 830                         /* Force uniform key length to work around
 831                          * firmware bugs */
 832                         keylen = priv->keys[priv->tx_key].key_len;
 833
 834                         if (keylen > LARGE_KEY_SIZE) {
 835                                 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
 836                                        priv->ndev->name, priv->tx_key, keylen);
 837                                 return -E2BIG;
 838                         } else if (keylen > SMALL_KEY_SIZE)
 839                                 keylen = LARGE_KEY_SIZE;
 840                         else if (keylen > 0)
 841                                 keylen = SMALL_KEY_SIZE;
 842                         else
 843                                 keylen = 0;
 844
 845                         /* Write all 4 keys */
 846                         for (i = 0; i < ORINOCO_MAX_KEYS; i++) {
 847                                 u8 key[LARGE_KEY_SIZE] = { 0 };
 848
 849                                 memcpy(key, priv->keys[i].key,
 850                                        priv->keys[i].key_len);
 851
 852                                 err = hermes_write_ltv(hw, USER_BAP,
 853                                                 HERMES_RID_CNFDEFAULTKEY0 + i,
 854                                                 HERMES_BYTES_TO_RECLEN(keylen),
 855                                                 key);
 856                                 if (err)
 857                                         return err;
 858                         }
 859
 860                         /* Write the index of the key used in transmission */
 861                         err = hermes_write_wordrec(hw, USER_BAP,
 862                                                 HERMES_RID_CNFWEPDEFAULTKEYID,
 863                                                 priv->tx_key);
 864                         if (err)
 865                                 return err;
 866                 }
 867                 break;
 868         }
 869
 870         return 0;
 871 }
 872
 873 int __orinoco_hw_setup_enc(struct orinoco_private *priv)
 874 {
 875         hermes_t *hw = &priv->hw;
 876         int err = 0;
 877         int master_wep_flag;
 878         int auth_flag;
 879         int enc_flag;
 880
 881         /* Setup WEP keys */
 882         if (priv->encode_alg == ORINOCO_ALG_WEP)
 883                 __orinoco_hw_setup_wepkeys(priv);
 884
 885         if (priv->wep_restrict)
 886                 auth_flag = HERMES_AUTH_SHARED_KEY;
 887         else
 888                 auth_flag = HERMES_AUTH_OPEN;
 889
 890         if (priv->wpa_enabled)
 891                 enc_flag = 2;
 892         else if (priv->encode_alg == ORINOCO_ALG_WEP)
 893                 enc_flag = 1;
 894         else
 895                 enc_flag = 0;
 896
 897         switch (priv->firmware_type) {
 898         case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
 899                 if (priv->encode_alg == ORINOCO_ALG_WEP) {
 900                         /* Enable the shared-key authentication. */
 901                         err = hermes_write_wordrec(hw, USER_BAP,
 902                                         HERMES_RID_CNFAUTHENTICATION_AGERE,
 903                                         auth_flag);
 904                 }
 905                 err = hermes_write_wordrec(hw, USER_BAP,
 906                                            HERMES_RID_CNFWEPENABLED_AGERE,
 907                                            enc_flag);
 908                 if (err)
 909                         return err;
 910
 911                 if (priv->has_wpa) {
 912                         /* Set WPA key management */
 913                         err = hermes_write_wordrec(hw, USER_BAP,
 914                                   HERMES_RID_CNFSETWPAAUTHMGMTSUITE_AGERE,
 915                                   priv->key_mgmt);
 916                         if (err)
 917                                 return err;
 918                 }
 919
 920                 break;
 921
 922         case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
 923         case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
 924                 if (priv->encode_alg == ORINOCO_ALG_WEP) {
 925                         if (priv->wep_restrict ||
 926                             (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
 927                                 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
 928                                                   HERMES_WEP_EXCL_UNENCRYPTED;
 929                         else
 930                                 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
 931
 932                         err = hermes_write_wordrec(hw, USER_BAP,
 933                                                    HERMES_RID_CNFAUTHENTICATION,
 934                                                    auth_flag);
 935                         if (err)
 936                                 return err;
 937                 } else
 938                         master_wep_flag = 0;
 939
 940                 if (priv->iw_mode == NL80211_IFTYPE_MONITOR)
 941                         master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
 942
 943                 /* Master WEP setting : on/off */
 944                 err = hermes_write_wordrec(hw, USER_BAP,
 945                                            HERMES_RID_CNFWEPFLAGS_INTERSIL,
 946                                            master_wep_flag);
 947                 if (err)
 948                         return err;
 949
 950                 break;
 951         }
 952
 953         return 0;
 954 }
 955
 956 /* key must be 32 bytes, including the tx and rx MIC keys.
 957  * rsc must be NULL or up to 8 bytes
 958  * tsc must be NULL or up to 8 bytes
 959  */
 960 int __orinoco_hw_set_tkip_key(struct orinoco_private *priv, int key_idx,
 961                               int set_tx, u8 *key, u8 *rsc, size_t rsc_len,
 962                               u8 *tsc, size_t tsc_len)
 963 {
 964         struct {
 965                 __le16 idx;
 966                 u8 rsc[ORINOCO_SEQ_LEN];
 967                 u8 key[TKIP_KEYLEN];
 968                 u8 tx_mic[MIC_KEYLEN];
 969                 u8 rx_mic[MIC_KEYLEN];
 970                 u8 tsc[ORINOCO_SEQ_LEN];
 971         } __attribute__ ((packed)) buf;
 972         hermes_t *hw = &priv->hw;
 973         int ret;
 974         int err;
 975         int k;
 976         u16 xmitting;
 977
 978         key_idx &= 0x3;
 979
 980         if (set_tx)
 981                 key_idx |= 0x8000;
 982
 983         buf.idx = cpu_to_le16(key_idx);
 984         memcpy(buf.key, key,
 985                sizeof(buf.key) + sizeof(buf.tx_mic) + sizeof(buf.rx_mic));
 986
 987         if (rsc_len > sizeof(buf.rsc))
 988                 rsc_len = sizeof(buf.rsc);
 989
 990         if (tsc_len > sizeof(buf.tsc))
 991                 tsc_len = sizeof(buf.tsc);
 992
 993         memset(buf.rsc, 0, sizeof(buf.rsc));
 994         memset(buf.tsc, 0, sizeof(buf.tsc));
 995
 996         if (rsc != NULL)
 997                 memcpy(buf.rsc, rsc, rsc_len);
 998
 999         if (tsc != NULL)
1000                 memcpy(buf.tsc, tsc, tsc_len);
1001         else
1002                 buf.tsc[4] = 0x10;
1003
1004         /* Wait upto 100ms for tx queue to empty */
1005         for (k = 100; k > 0; k--) {
1006                 udelay(1000);
1007                 ret = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_TXQUEUEEMPTY,
1008                                           &xmitting);
1009                 if (ret || !xmitting)
1010                         break;
1011         }
1012
1013         if (k == 0)
1014                 ret = -ETIMEDOUT;
1015
1016         err = HERMES_WRITE_RECORD(hw, USER_BAP,
1017                                   HERMES_RID_CNFADDDEFAULTTKIPKEY_AGERE,
1018                                   &buf);
1019
1020         return ret ? ret : err;
1021 }
1022
1023 int orinoco_clear_tkip_key(struct orinoco_private *priv, int key_idx)
1024 {
1025         hermes_t *hw = &priv->hw;
1026         int err;
1027
1028         err = hermes_write_wordrec(hw, USER_BAP,
1029                                    HERMES_RID_CNFREMDEFAULTTKIPKEY_AGERE,
1030                                    key_idx);
1031         if (err)
1032                 printk(KERN_WARNING "%s: Error %d clearing TKIP key %d\n",
1033                        priv->ndev->name, err, key_idx);
1034         return err;
1035 }
1036
1037 int __orinoco_hw_set_multicast_list(struct orinoco_private *priv,
1038                                     struct net_device *dev,
1039                                     int mc_count, int promisc)
1040 {
1041         hermes_t *hw = &priv->hw;
1042         int err = 0;
1043
1044         if (promisc != priv->promiscuous) {
1045                 err = hermes_write_wordrec(hw, USER_BAP,
1046                                            HERMES_RID_CNFPROMISCUOUSMODE,
1047                                            promisc);
1048                 if (err) {
1049                         printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1050                                priv->ndev->name, err);
1051                 } else
1052                         priv->promiscuous = promisc;
1053         }
1054
1055         /* If we're not in promiscuous mode, then we need to set the
1056          * group address if either we want to multicast, or if we were
1057          * multicasting and want to stop */
1058         if (!promisc && (mc_count || priv->mc_count)) {
1059                 struct dev_mc_list *p;
1060                 struct hermes_multicast mclist;
1061                 int i = 0;
1062
1063                 netdev_for_each_mc_addr(p, dev) {
1064                         if (i == mc_count)
1065                                 break;
1066                         memcpy(mclist.addr[i++], p->dmi_addr, ETH_ALEN);
1067                 }
1068
1069                 err = hermes_write_ltv(hw, USER_BAP,
1070                                    HERMES_RID_CNFGROUPADDRESSES,
1071                                    HERMES_BYTES_TO_RECLEN(mc_count * ETH_ALEN),
1072                                    &mclist);
1073                 if (err)
1074                         printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1075                                priv->ndev->name, err);
1076                 else
1077                         priv->mc_count = mc_count;
1078         }
1079         return err;
1080 }
1081
1082 /* Return : < 0 -> error code ; >= 0 -> length */
1083 int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
1084                          char buf[IW_ESSID_MAX_SIZE+1])
1085 {
1086         hermes_t *hw = &priv->hw;
1087         int err = 0;
1088         struct hermes_idstring essidbuf;
1089         char *p = (char *)(&essidbuf.val);
1090         int len;
1091         unsigned long flags;
1092
1093         if (orinoco_lock(priv, &flags) != 0)
1094                 return -EBUSY;
1095
1096         if (strlen(priv->desired_essid) > 0) {
1097                 /* We read the desired SSID from the hardware rather
1098                    than from priv->desired_essid, just in case the
1099                    firmware is allowed to change it on us. I'm not
1100                    sure about this */
1101                 /* My guess is that the OWNSSID should always be whatever
1102                  * we set to the card, whereas CURRENT_SSID is the one that
1103                  * may change... - Jean II */
1104                 u16 rid;
1105
1106                 *active = 1;
1107
1108                 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
1109                         HERMES_RID_CNFDESIREDSSID;
1110
1111                 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
1112                                       NULL, &essidbuf);
1113                 if (err)
1114                         goto fail_unlock;
1115         } else {
1116                 *active = 0;
1117
1118                 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
1119                                       sizeof(essidbuf), NULL, &essidbuf);
1120                 if (err)
1121                         goto fail_unlock;
1122         }
1123
1124         len = le16_to_cpu(essidbuf.len);
1125         BUG_ON(len > IW_ESSID_MAX_SIZE);
1126
1127         memset(buf, 0, IW_ESSID_MAX_SIZE);
1128         memcpy(buf, p, len);
1129         err = len;
1130
1131  fail_unlock:
1132         orinoco_unlock(priv, &flags);
1133
1134         return err;
1135 }
1136
1137 int orinoco_hw_get_freq(struct orinoco_private *priv)
1138 {
1139         hermes_t *hw = &priv->hw;
1140         int err = 0;
1141         u16 channel;
1142         int freq = 0;
1143         unsigned long flags;
1144
1145         if (orinoco_lock(priv, &flags) != 0)
1146                 return -EBUSY;
1147
1148         err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL,
1149                                   &channel);
1150         if (err)
1151                 goto out;
1152
1153         /* Intersil firmware 1.3.5 returns 0 when the interface is down */
1154         if (channel == 0) {
1155                 err = -EBUSY;
1156                 goto out;
1157         }
1158
1159         if ((channel < 1) || (channel > NUM_CHANNELS)) {
1160                 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
1161                        priv->ndev->name, channel);
1162                 err = -EBUSY;
1163                 goto out;
1164
1165         }
1166         freq = ieee80211_dsss_chan_to_freq(channel);
1167
1168  out:
1169         orinoco_unlock(priv, &flags);
1170
1171         if (err > 0)
1172                 err = -EBUSY;
1173         return err ? err : freq;
1174 }
1175
1176 int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
1177                                int *numrates, s32 *rates, int max)
1178 {
1179         hermes_t *hw = &priv->hw;
1180         struct hermes_idstring list;
1181         unsigned char *p = (unsigned char *)&list.val;
1182         int err = 0;
1183         int num;
1184         int i;
1185         unsigned long flags;
1186
1187         if (orinoco_lock(priv, &flags) != 0)
1188                 return -EBUSY;
1189
1190         err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
1191                               sizeof(list), NULL, &list);
1192         orinoco_unlock(priv, &flags);
1193
1194         if (err)
1195                 return err;
1196
1197         num = le16_to_cpu(list.len);
1198         *numrates = num;
1199         num = min(num, max);
1200
1201         for (i = 0; i < num; i++)
1202                 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
1203
1204         return 0;
1205 }
1206
1207 int orinoco_hw_trigger_scan(struct orinoco_private *priv,
1208                             const struct cfg80211_ssid *ssid)
1209 {
1210         struct net_device *dev = priv->ndev;
1211         hermes_t *hw = &priv->hw;
1212         unsigned long flags;
1213         int err = 0;
1214
1215         if (orinoco_lock(priv, &flags) != 0)
1216                 return -EBUSY;
1217
1218         /* Scanning with port 0 disabled would fail */
1219         if (!netif_running(dev)) {
1220                 err = -ENETDOWN;
1221                 goto out;
1222         }
1223
1224         /* In monitor mode, the scan results are always empty.
1225          * Probe responses are passed to the driver as received
1226          * frames and could be processed in software. */
1227         if (priv->iw_mode == NL80211_IFTYPE_MONITOR) {
1228                 err = -EOPNOTSUPP;
1229                 goto out;
1230         }
1231
1232         if (priv->has_hostscan) {
1233                 switch (priv->firmware_type) {
1234                 case FIRMWARE_TYPE_SYMBOL:
1235                         err = hermes_write_wordrec(hw, USER_BAP,
1236                                                 HERMES_RID_CNFHOSTSCAN_SYMBOL,
1237                                                 HERMES_HOSTSCAN_SYMBOL_ONCE |
1238                                                 HERMES_HOSTSCAN_SYMBOL_BCAST);
1239                         break;
1240                 case FIRMWARE_TYPE_INTERSIL: {
1241                         __le16 req[3];
1242
1243                         req[0] = cpu_to_le16(0x3fff);   /* All channels */
1244                         req[1] = cpu_to_le16(0x0001);   /* rate 1 Mbps */
1245                         req[2] = 0;                     /* Any ESSID */
1246                         err = HERMES_WRITE_RECORD(hw, USER_BAP,
1247                                                   HERMES_RID_CNFHOSTSCAN, &req);
1248                         break;
1249                 }
1250                 case FIRMWARE_TYPE_AGERE:
1251                         if (ssid->ssid_len > 0) {
1252                                 struct hermes_idstring idbuf;
1253                                 size_t len = ssid->ssid_len;
1254
1255                                 idbuf.len = cpu_to_le16(len);
1256                                 memcpy(idbuf.val, ssid->ssid, len);
1257
1258                                 err = hermes_write_ltv(hw, USER_BAP,
1259                                                HERMES_RID_CNFSCANSSID_AGERE,
1260                                                HERMES_BYTES_TO_RECLEN(len + 2),
1261                                                &idbuf);
1262                         } else
1263                                 err = hermes_write_wordrec(hw, USER_BAP,
1264                                                    HERMES_RID_CNFSCANSSID_AGERE,
1265                                                    0);  /* Any ESSID */
1266                         if (err)
1267                                 break;
1268
1269                         if (priv->has_ext_scan) {
1270                                 err = hermes_write_wordrec(hw, USER_BAP,
1271                                                 HERMES_RID_CNFSCANCHANNELS2GHZ,
1272                                                 0x7FFF);
1273                                 if (err)
1274                                         goto out;
1275
1276                                 err = hermes_inquire(hw,
1277                                                      HERMES_INQ_CHANNELINFO);
1278                         } else
1279                                 err = hermes_inquire(hw, HERMES_INQ_SCAN);
1280
1281                         break;
1282                 }
1283         } else
1284                 err = hermes_inquire(hw, HERMES_INQ_SCAN);
1285
1286  out:
1287         orinoco_unlock(priv, &flags);
1288
1289         return err;
1290 }
1291
1292 /* Disassociate from node with BSSID addr */
1293 int orinoco_hw_disassociate(struct orinoco_private *priv,
1294                             u8 *addr, u16 reason_code)
1295 {
1296         hermes_t *hw = &priv->hw;
1297         int err;
1298
1299         struct {
1300                 u8 addr[ETH_ALEN];
1301                 __le16 reason_code;
1302         } __attribute__ ((packed)) buf;
1303
1304         /* Currently only supported by WPA enabled Agere fw */
1305         if (!priv->has_wpa)
1306                 return -EOPNOTSUPP;
1307
1308         memcpy(buf.addr, addr, ETH_ALEN);
1309         buf.reason_code = cpu_to_le16(reason_code);
1310         err = HERMES_WRITE_RECORD(hw, USER_BAP,
1311                                   HERMES_RID_CNFDISASSOCIATE,
1312                                   &buf);
1313         return err;
1314 }
1315
1316 int orinoco_hw_get_current_bssid(struct orinoco_private *priv,
1317                                  u8 *addr)
1318 {
1319         hermes_t *hw = &priv->hw;
1320         int err;
1321
1322         err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
1323                               ETH_ALEN, NULL, addr);
1324
1325         return err;
1326 }