drivers/staging/wlan-ng/prism2mib.c

   1 // SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
   2 /* src/prism2/driver/prism2mib.c
   3  *
   4  * Management request for mibset/mibget
   5  *
   6  * Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
   7  * --------------------------------------------------------------------
   8  *
   9  * linux-wlan
  10  *
  11  *   The contents of this file are subject to the Mozilla Public
  12  *   License Version 1.1 (the "License"); you may not use this file
  13  *   except in compliance with the License. You may obtain a copy of
  14  *   the License at http://www.mozilla.org/MPL/
  15  *
  16  *   Software distributed under the License is distributed on an "AS
  17  *   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  18  *   implied. See the License for the specific language governing
  19  *   rights and limitations under the License.
  20  *
  21  *   Alternatively, the contents of this file may be used under the
  22  *   terms of the GNU Public License version 2 (the "GPL"), in which
  23  *   case the provisions of the GPL are applicable instead of the
  24  *   above.  If you wish to allow the use of your version of this file
  25  *   only under the terms of the GPL and not to allow others to use
  26  *   your version of this file under the MPL, indicate your decision
  27  *   by deleting the provisions above and replace them with the notice
  28  *   and other provisions required by the GPL.  If you do not delete
  29  *   the provisions above, a recipient may use your version of this
  30  *   file under either the MPL or the GPL.
  31  *
  32  * --------------------------------------------------------------------
  33  *
  34  * Inquiries regarding the linux-wlan Open Source project can be
  35  * made directly to:
  36  *
  37  * AbsoluteValue Systems Inc.
  38  * info@linux-wlan.com
  39  * http://www.linux-wlan.com
  40  *
  41  * --------------------------------------------------------------------
  42  *
  43  * Portions of the development of this software were funded by
  44  * Intersil Corporation as part of PRISM(R) chipset product development.
  45  *
  46  * --------------------------------------------------------------------
  47  *
  48  * The functions in this file handle the mibset/mibget management
  49  * functions.
  50  *
  51  * --------------------------------------------------------------------
  52  */
  53
  54 #include <linux/module.h>
  55 #include <linux/kernel.h>
  56 #include <linux/sched.h>
  57 #include <linux/types.h>
  58 #include <linux/wireless.h>
  59 #include <linux/netdevice.h>
  60 #include <linux/io.h>
  61 #include <linux/delay.h>
  62 #include <asm/byteorder.h>
  63 #include <linux/usb.h>
  64 #include <linux/bitops.h>
  65
  66 #include "p80211types.h"
  67 #include "p80211hdr.h"
  68 #include "p80211mgmt.h"
  69 #include "p80211conv.h"
  70 #include "p80211msg.h"
  71 #include "p80211netdev.h"
  72 #include "p80211metadef.h"
  73 #include "p80211metastruct.h"
  74 #include "hfa384x.h"
  75 #include "prism2mgmt.h"
  76
  77 #define MIB_TMP_MAXLEN    200   /* Max length of RID record (in bytes). */
  78
  79 #define  F_STA        0x1       /* MIB is supported on stations. */
  80 #define  F_READ       0x2       /* MIB may be read. */
  81 #define  F_WRITE      0x4       /* MIB may be written. */
  82
  83 struct mibrec {
  84         u32 did;
  85         u16 flag;
  86         u16 parm1;
  87         u16 parm2;
  88         u16 parm3;
  89         int (*func)(struct mibrec *mib,
  90                     int isget,
  91                     struct wlandevice *wlandev,
  92                     struct hfa384x *hw,
  93                     struct p80211msg_dot11req_mibset *msg, void *data);
  94 };
  95
  96 static int prism2mib_bytearea2pstr(struct mibrec *mib,
  97                                    int isget,
  98                                    struct wlandevice *wlandev,
  99                                    struct hfa384x *hw,
 100                                    struct p80211msg_dot11req_mibset *msg,
 101                                    void *data);
 102
 103 static int prism2mib_uint32(struct mibrec *mib,
 104                             int isget,
 105                             struct wlandevice *wlandev,
 106                             struct hfa384x *hw,
 107                             struct p80211msg_dot11req_mibset *msg, void *data);
 108
 109 static int prism2mib_flag(struct mibrec *mib,
 110                           int isget,
 111                           struct wlandevice *wlandev,
 112                           struct hfa384x *hw,
 113                           struct p80211msg_dot11req_mibset *msg, void *data);
 114
 115 static int prism2mib_wepdefaultkey(struct mibrec *mib,
 116                                    int isget,
 117                                    struct wlandevice *wlandev,
 118                                    struct hfa384x *hw,
 119                                    struct p80211msg_dot11req_mibset *msg,
 120                                    void *data);
 121
 122 static int prism2mib_privacyinvoked(struct mibrec *mib,
 123                                     int isget,
 124                                     struct wlandevice *wlandev,
 125                                     struct hfa384x *hw,
 126                                     struct p80211msg_dot11req_mibset *msg,
 127                                     void *data);
 128
 129 static int
 130 prism2mib_fragmentationthreshold(struct mibrec *mib,
 131                                  int isget,
 132                                  struct wlandevice *wlandev,
 133                                  struct hfa384x *hw,
 134                                  struct p80211msg_dot11req_mibset *msg,
 135                                  void *data);
 136
 137 static int prism2mib_priv(struct mibrec *mib,
 138                           int isget,
 139                           struct wlandevice *wlandev,
 140                           struct hfa384x *hw,
 141                           struct p80211msg_dot11req_mibset *msg, void *data);
 142
 143 static struct mibrec mibtab[] = {
 144         /* dot11smt MIB's */
 145         {didmib_dot11smt_wepdefaultkeystable_key(1),
 146          F_STA | F_WRITE,
 147          HFA384x_RID_CNFWEPDEFAULTKEY0, 0, 0,
 148          prism2mib_wepdefaultkey},
 149         {didmib_dot11smt_wepdefaultkeystable_key(2),
 150          F_STA | F_WRITE,
 151          HFA384x_RID_CNFWEPDEFAULTKEY1, 0, 0,
 152          prism2mib_wepdefaultkey},
 153         {didmib_dot11smt_wepdefaultkeystable_key(3),
 154          F_STA | F_WRITE,
 155          HFA384x_RID_CNFWEPDEFAULTKEY2, 0, 0,
 156          prism2mib_wepdefaultkey},
 157         {didmib_dot11smt_wepdefaultkeystable_key(4),
 158          F_STA | F_WRITE,
 159          HFA384x_RID_CNFWEPDEFAULTKEY3, 0, 0,
 160          prism2mib_wepdefaultkey},
 161         {DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED,
 162          F_STA | F_READ | F_WRITE,
 163          HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_PRIVINVOKED, 0,
 164          prism2mib_privacyinvoked},
 165         {DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
 166          F_STA | F_READ | F_WRITE,
 167          HFA384x_RID_CNFWEPDEFAULTKEYID, 0, 0,
 168          prism2mib_uint32},
 169         {DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED,
 170          F_STA | F_READ | F_WRITE,
 171          HFA384x_RID_CNFWEPFLAGS, HFA384x_WEPFLAGS_EXCLUDE, 0,
 172          prism2mib_flag},
 173
 174         /* dot11mac MIB's */
 175
 176         {DIDMIB_DOT11MAC_OPERATIONTABLE_MACADDRESS,
 177          F_STA | F_READ | F_WRITE,
 178          HFA384x_RID_CNFOWNMACADDR, HFA384x_RID_CNFOWNMACADDR_LEN, 0,
 179          prism2mib_bytearea2pstr},
 180         {DIDMIB_DOT11MAC_OPERATIONTABLE_RTSTHRESHOLD,
 181          F_STA | F_READ | F_WRITE,
 182          HFA384x_RID_RTSTHRESH, 0, 0,
 183          prism2mib_uint32},
 184         {DIDMIB_DOT11MAC_OPERATIONTABLE_SHORTRETRYLIMIT,
 185          F_STA | F_READ,
 186          HFA384x_RID_SHORTRETRYLIMIT, 0, 0,
 187          prism2mib_uint32},
 188         {DIDMIB_DOT11MAC_OPERATIONTABLE_LONGRETRYLIMIT,
 189          F_STA | F_READ,
 190          HFA384x_RID_LONGRETRYLIMIT, 0, 0,
 191          prism2mib_uint32},
 192         {DIDMIB_DOT11MAC_OPERATIONTABLE_FRAGMENTATIONTHRESHOLD,
 193          F_STA | F_READ | F_WRITE,
 194          HFA384x_RID_FRAGTHRESH, 0, 0,
 195          prism2mib_fragmentationthreshold},
 196         {DIDMIB_DOT11MAC_OPERATIONTABLE_MAXTRANSMITMSDULIFETIME,
 197          F_STA | F_READ,
 198          HFA384x_RID_MAXTXLIFETIME, 0, 0,
 199          prism2mib_uint32},
 200
 201         /* dot11phy MIB's */
 202
 203         {DIDMIB_DOT11PHY_DSSSTABLE_CURRENTCHANNEL,
 204          F_STA | F_READ,
 205          HFA384x_RID_CURRENTCHANNEL, 0, 0,
 206          prism2mib_uint32},
 207         {DIDMIB_DOT11PHY_TXPOWERTABLE_CURRENTTXPOWERLEVEL,
 208          F_STA | F_READ | F_WRITE,
 209          HFA384x_RID_TXPOWERMAX, 0, 0,
 210          prism2mib_uint32},
 211
 212         /* p2Static MIB's */
 213
 214         {DIDMIB_P2_STATIC_CNFPORTTYPE,
 215          F_STA | F_READ | F_WRITE,
 216          HFA384x_RID_CNFPORTTYPE, 0, 0,
 217          prism2mib_uint32},
 218
 219         /* p2MAC MIB's */
 220
 221         {DIDMIB_P2_MAC_CURRENTTXRATE,
 222          F_STA | F_READ,
 223          HFA384x_RID_CURRENTTXRATE, 0, 0,
 224          prism2mib_uint32},
 225
 226         /* And finally, lnx mibs */
 227         {DIDMIB_LNX_CONFIGTABLE_RSNAIE,
 228          F_STA | F_READ | F_WRITE,
 229          HFA384x_RID_CNFWPADATA, 0, 0,
 230          prism2mib_priv},
 231         {0, 0, 0, 0, 0, NULL}
 232 };
 233
 234 /*
 235  * prism2mgmt_mibset_mibget
 236  *
 237  * Set the value of a mib item.
 238  *
 239  * Arguments:
 240  *      wlandev         wlan device structure
 241  *      msgp            ptr to msg buffer
 242  *
 243  * Returns:
 244  *      0       success and done
 245  *      <0      success, but we're waiting for something to finish.
 246  *      >0      an error occurred while handling the message.
 247  * Side effects:
 248  *
 249  * Call context:
 250  *      process thread  (usually)
 251  *      interrupt
 252  */
 253
 254 int prism2mgmt_mibset_mibget(struct wlandevice *wlandev, void *msgp)
 255 {
 256         struct hfa384x *hw = wlandev->priv;
 257         int result, isget;
 258         struct mibrec *mib;
 259
 260         u16 which;
 261
 262         struct p80211msg_dot11req_mibset *msg = msgp;
 263         struct p80211itemd *mibitem;
 264
 265         msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
 266         msg->resultcode.data = P80211ENUM_resultcode_success;
 267
 268         /*
 269          ** Determine if this is an Access Point or a station.
 270          */
 271
 272         which = F_STA;
 273
 274         /*
 275          ** Find the MIB in the MIB table.  Note that a MIB may be in the
 276          ** table twice...once for an AP and once for a station.  Make sure
 277          ** to get the correct one.  Note that DID=0 marks the end of the
 278          ** MIB table.
 279          */
 280
 281         mibitem = (struct p80211itemd *)msg->mibattribute.data;
 282
 283         for (mib = mibtab; mib->did != 0; mib++)
 284                 if (mib->did == mibitem->did && (mib->flag & which))
 285                         break;
 286
 287         if (mib->did == 0) {
 288                 msg->resultcode.data = P80211ENUM_resultcode_not_supported;
 289                 goto done;
 290         }
 291
 292         /*
 293          ** Determine if this is a "mibget" or a "mibset".  If this is a
 294          ** "mibget", then make sure that the MIB may be read.  Otherwise,
 295          ** this is a "mibset" so make make sure that the MIB may be written.
 296          */
 297
 298         isget = (msg->msgcode == DIDMSG_DOT11REQ_MIBGET);
 299
 300         if (isget) {
 301                 if (!(mib->flag & F_READ)) {
 302                         msg->resultcode.data =
 303                             P80211ENUM_resultcode_cant_get_writeonly_mib;
 304                         goto done;
 305                 }
 306         } else {
 307                 if (!(mib->flag & F_WRITE)) {
 308                         msg->resultcode.data =
 309                             P80211ENUM_resultcode_cant_set_readonly_mib;
 310                         goto done;
 311                 }
 312         }
 313
 314         /*
 315          ** Execute the MIB function.  If things worked okay, then make
 316          ** sure that the MIB function also worked okay.  If so, and this
 317          ** is a "mibget", then the status value must be set for both the
 318          ** "mibattribute" parameter and the mib item within the data
 319          ** portion of the "mibattribute".
 320          */
 321
 322         result = mib->func(mib, isget, wlandev, hw, msg, (void *)mibitem->data);
 323
 324         if (msg->resultcode.data == P80211ENUM_resultcode_success) {
 325                 if (result != 0) {
 326                         pr_debug("get/set failure, result=%d\n", result);
 327                         msg->resultcode.data =
 328                             P80211ENUM_resultcode_implementation_failure;
 329                 } else {
 330                         if (isget) {
 331                                 msg->mibattribute.status =
 332                                     P80211ENUM_msgitem_status_data_ok;
 333                                 mibitem->status =
 334                                     P80211ENUM_msgitem_status_data_ok;
 335                         }
 336                 }
 337         }
 338
 339 done:
 340         return 0;
 341 }
 342
 343 /*
 344  * prism2mib_bytearea2pstr
 345  *
 346  * Get/set pstr data to/from a byte area.
 347  *
 348  * MIB record parameters:
 349  *       parm1    Prism2 RID value.
 350  *       parm2    Number of bytes of RID data.
 351  *       parm3    Not used.
 352  *
 353  * Arguments:
 354  *       mib      MIB record.
 355  *       isget    MIBGET/MIBSET flag.
 356  *       wlandev  wlan device structure.
 357  *       priv     "priv" structure.
 358  *       hw       "hw" structure.
 359  *       msg      Message structure.
 360  *       data     Data buffer.
 361  *
 362  * Returns:
 363  *       0   - Success.
 364  *       ~0  - Error.
 365  *
 366  */
 367
 368 static int prism2mib_bytearea2pstr(struct mibrec *mib,
 369                                    int isget,
 370                                    struct wlandevice *wlandev,
 371                                    struct hfa384x *hw,
 372                                    struct p80211msg_dot11req_mibset *msg,
 373                                    void *data)
 374 {
 375         int result;
 376         struct p80211pstrd *pstr = data;
 377         u8 bytebuf[MIB_TMP_MAXLEN];
 378
 379         if (isget) {
 380                 result =
 381                     hfa384x_drvr_getconfig(hw, mib->parm1, bytebuf, mib->parm2);
 382                 prism2mgmt_bytearea2pstr(bytebuf, pstr, mib->parm2);
 383         } else {
 384                 memset(bytebuf, 0, mib->parm2);
 385                 memcpy(bytebuf, pstr->data, pstr->len);
 386                 result =
 387                     hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, mib->parm2);
 388         }
 389
 390         return result;
 391 }
 392
 393 /*
 394  * prism2mib_uint32
 395  *
 396  * Get/set uint32 data.
 397  *
 398  * MIB record parameters:
 399  *       parm1    Prism2 RID value.
 400  *       parm2    Not used.
 401  *       parm3    Not used.
 402  *
 403  * Arguments:
 404  *       mib      MIB record.
 405  *       isget    MIBGET/MIBSET flag.
 406  *       wlandev  wlan device structure.
 407  *       priv     "priv" structure.
 408  *       hw       "hw" structure.
 409  *       msg      Message structure.
 410  *       data     Data buffer.
 411  *
 412  * Returns:
 413  *       0   - Success.
 414  *       ~0  - Error.
 415  *
 416  */
 417
 418 static int prism2mib_uint32(struct mibrec *mib,
 419                             int isget,
 420                             struct wlandevice *wlandev,
 421                             struct hfa384x *hw,
 422                             struct p80211msg_dot11req_mibset *msg, void *data)
 423 {
 424         int result;
 425         u32 *uint32 = data;
 426         u8 bytebuf[MIB_TMP_MAXLEN];
 427         u16 *wordbuf = (u16 *)bytebuf;
 428
 429         if (isget) {
 430                 result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
 431                 *uint32 = *wordbuf;
 432         } else {
 433                 *wordbuf = *uint32;
 434                 result = hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
 435         }
 436
 437         return result;
 438 }
 439
 440 /*
 441  * prism2mib_flag
 442  *
 443  * Get/set a flag.
 444  *
 445  * MIB record parameters:
 446  *       parm1    Prism2 RID value.
 447  *       parm2    Bit to get/set.
 448  *       parm3    Not used.
 449  *
 450  * Arguments:
 451  *       mib      MIB record.
 452  *       isget    MIBGET/MIBSET flag.
 453  *       wlandev  wlan device structure.
 454  *       priv     "priv" structure.
 455  *       hw       "hw" structure.
 456  *       msg      Message structure.
 457  *       data     Data buffer.
 458  *
 459  * Returns:
 460  *       0   - Success.
 461  *       ~0  - Error.
 462  *
 463  */
 464
 465 static int prism2mib_flag(struct mibrec *mib,
 466                           int isget,
 467                           struct wlandevice *wlandev,
 468                           struct hfa384x *hw,
 469                           struct p80211msg_dot11req_mibset *msg, void *data)
 470 {
 471         int result;
 472         u32 *uint32 = data;
 473         u8 bytebuf[MIB_TMP_MAXLEN];
 474         u16 *wordbuf = (u16 *)bytebuf;
 475         u32 flags;
 476
 477         result = hfa384x_drvr_getconfig16(hw, mib->parm1, wordbuf);
 478         if (result == 0) {
 479                 flags = *wordbuf;
 480                 if (isget) {
 481                         *uint32 = (flags & mib->parm2) ?
 482                             P80211ENUM_truth_true : P80211ENUM_truth_false;
 483                 } else {
 484                         if ((*uint32) == P80211ENUM_truth_true)
 485                                 flags |= mib->parm2;
 486                         else
 487                                 flags &= ~mib->parm2;
 488                         *wordbuf = flags;
 489                         result =
 490                             hfa384x_drvr_setconfig16(hw, mib->parm1, *wordbuf);
 491                 }
 492         }
 493
 494         return result;
 495 }
 496
 497 /*
 498  * prism2mib_wepdefaultkey
 499  *
 500  * Get/set WEP default keys.
 501  *
 502  * MIB record parameters:
 503  *       parm1    Prism2 RID value.
 504  *       parm2    Number of bytes of RID data.
 505  *       parm3    Not used.
 506  *
 507  * Arguments:
 508  *       mib      MIB record.
 509  *       isget    MIBGET/MIBSET flag.
 510  *       wlandev  wlan device structure.
 511  *       priv     "priv" structure.
 512  *       hw       "hw" structure.
 513  *       msg      Message structure.
 514  *       data     Data buffer.
 515  *
 516  * Returns:
 517  *       0   - Success.
 518  *       ~0  - Error.
 519  *
 520  */
 521
 522 static int prism2mib_wepdefaultkey(struct mibrec *mib,
 523                                    int isget,
 524                                    struct wlandevice *wlandev,
 525                                    struct hfa384x *hw,
 526                                    struct p80211msg_dot11req_mibset *msg,
 527                                    void *data)
 528 {
 529         int result;
 530         struct p80211pstrd *pstr = data;
 531         u8 bytebuf[MIB_TMP_MAXLEN];
 532         u16 len;
 533
 534         if (isget) {
 535                 result = 0;     /* Should never happen. */
 536         } else {
 537                 len = (pstr->len > 5) ? HFA384x_RID_CNFWEP128DEFAULTKEY_LEN :
 538                     HFA384x_RID_CNFWEPDEFAULTKEY_LEN;
 539                 memset(bytebuf, 0, len);
 540                 memcpy(bytebuf, pstr->data, pstr->len);
 541                 result = hfa384x_drvr_setconfig(hw, mib->parm1, bytebuf, len);
 542         }
 543
 544         return result;
 545 }
 546
 547 /*
 548  * prism2mib_privacyinvoked
 549  *
 550  * Get/set the dot11PrivacyInvoked value.
 551  *
 552  * MIB record parameters:
 553  *       parm1    Prism2 RID value.
 554  *       parm2    Bit value for PrivacyInvoked flag.
 555  *       parm3    Not used.
 556  *
 557  * Arguments:
 558  *       mib      MIB record.
 559  *       isget    MIBGET/MIBSET flag.
 560  *       wlandev  wlan device structure.
 561  *       priv     "priv" structure.
 562  *       hw       "hw" structure.
 563  *       msg      Message structure.
 564  *       data     Data buffer.
 565  *
 566  * Returns:
 567  *       0   - Success.
 568  *       ~0  - Error.
 569  *
 570  */
 571
 572 static int prism2mib_privacyinvoked(struct mibrec *mib,
 573                                     int isget,
 574                                     struct wlandevice *wlandev,
 575                                     struct hfa384x *hw,
 576                                     struct p80211msg_dot11req_mibset *msg,
 577                                     void *data)
 578 {
 579         if (wlandev->hostwep & HOSTWEP_DECRYPT) {
 580                 if (wlandev->hostwep & HOSTWEP_DECRYPT)
 581                         mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
 582                 if (wlandev->hostwep & HOSTWEP_ENCRYPT)
 583                         mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_TXCRYPT;
 584         }
 585
 586         return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
 587 }
 588
 589 /*
 590  * prism2mib_fragmentationthreshold
 591  *
 592  * Get/set the fragmentation threshold.
 593  *
 594  * MIB record parameters:
 595  *       parm1    Prism2 RID value.
 596  *       parm2    Not used.
 597  *       parm3    Not used.
 598  *
 599  * Arguments:
 600  *       mib      MIB record.
 601  *       isget    MIBGET/MIBSET flag.
 602  *       wlandev  wlan device structure.
 603  *       priv     "priv" structure.
 604  *       hw       "hw" structure.
 605  *       msg      Message structure.
 606  *       data     Data buffer.
 607  *
 608  * Returns:
 609  *       0   - Success.
 610  *       ~0  - Error.
 611  *
 612  */
 613
 614 static int
 615 prism2mib_fragmentationthreshold(struct mibrec *mib,
 616                                  int isget,
 617                                  struct wlandevice *wlandev,
 618                                  struct hfa384x *hw,
 619                                  struct p80211msg_dot11req_mibset *msg,
 620                                  void *data)
 621 {
 622         u32 *uint32 = data;
 623
 624         if (!isget)
 625                 if ((*uint32) % 2) {
 626                         netdev_warn(wlandev->netdev,
 627                                     "Attempt to set odd number FragmentationThreshold\n");
 628                         msg->resultcode.data =
 629                             P80211ENUM_resultcode_not_supported;
 630                         return 0;
 631                 }
 632
 633         return prism2mib_uint32(mib, isget, wlandev, hw, msg, data);
 634 }
 635
 636 /*
 637  * prism2mib_priv
 638  *
 639  * Get/set values in the "priv" data structure.
 640  *
 641  * MIB record parameters:
 642  *       parm1    Not used.
 643  *       parm2    Not used.
 644  *       parm3    Not used.
 645  *
 646  * Arguments:
 647  *       mib      MIB record.
 648  *       isget    MIBGET/MIBSET flag.
 649  *       wlandev  wlan device structure.
 650  *       priv     "priv" structure.
 651  *       hw       "hw" structure.
 652  *       msg      Message structure.
 653  *       data     Data buffer.
 654  *
 655  * Returns:
 656  *       0   - Success.
 657  *       ~0  - Error.
 658  *
 659  */
 660
 661 static int prism2mib_priv(struct mibrec *mib,
 662                           int isget,
 663                           struct wlandevice *wlandev,
 664                           struct hfa384x *hw,
 665                           struct p80211msg_dot11req_mibset *msg, void *data)
 666 {
 667         struct p80211pstrd *pstr = data;
 668
 669         switch (mib->did) {
 670         case DIDMIB_LNX_CONFIGTABLE_RSNAIE: {
 671                 struct hfa384x_wpa_data wpa;
 672
 673                 if (isget) {
 674                         hfa384x_drvr_getconfig(hw,
 675                                                HFA384x_RID_CNFWPADATA,
 676                                                (u8 *)&wpa,
 677                                                sizeof(wpa));
 678                         pstr->len = le16_to_cpu(wpa.datalen);
 679                         memcpy(pstr->data, wpa.data, pstr->len);
 680                 } else {
 681                         wpa.datalen = cpu_to_le16(pstr->len);
 682                         memcpy(wpa.data, pstr->data, pstr->len);
 683
 684                         hfa384x_drvr_setconfig(hw,
 685                                                HFA384x_RID_CNFWPADATA,
 686                                                (u8 *)&wpa,
 687                                                sizeof(wpa));
 688                 }
 689                 break;
 690         }
 691         default:
 692                 netdev_err(wlandev->netdev, "Unhandled DID 0x%08x\n", mib->did);
 693         }
 694
 695         return 0;
 696 }
 697
 698 /*
 699  * prism2mgmt_pstr2bytestr
 700  *
 701  * Convert the pstr data in the WLAN message structure into an hfa384x
 702  * byte string format.
 703  *
 704  * Arguments:
 705  *      bytestr         hfa384x byte string data type
 706  *      pstr            wlan message data
 707  *
 708  * Returns:
 709  *      Nothing
 710  *
 711  */
 712
 713 void prism2mgmt_pstr2bytestr(struct hfa384x_bytestr *bytestr,
 714                              struct p80211pstrd *pstr)
 715 {
 716         bytestr->len = cpu_to_le16((u16)(pstr->len));
 717         memcpy(bytestr->data, pstr->data, pstr->len);
 718 }
 719
 720 /*
 721  * prism2mgmt_bytestr2pstr
 722  *
 723  * Convert the data in an hfa384x byte string format into a
 724  * pstr in the WLAN message.
 725  *
 726  * Arguments:
 727  *      bytestr         hfa384x byte string data type
 728  *      msg             wlan message
 729  *
 730  * Returns:
 731  *      Nothing
 732  *
 733  */
 734
 735 void prism2mgmt_bytestr2pstr(struct hfa384x_bytestr *bytestr,
 736                              struct p80211pstrd *pstr)
 737 {
 738         pstr->len = (u8)(le16_to_cpu(bytestr->len));
 739         memcpy(pstr->data, bytestr->data, pstr->len);
 740 }
 741
 742 /*
 743  * prism2mgmt_bytearea2pstr
 744  *
 745  * Convert the data in an hfa384x byte area format into a pstr
 746  * in the WLAN message.
 747  *
 748  * Arguments:
 749  *      bytearea        hfa384x byte area data type
 750  *      msg             wlan message
 751  *
 752  * Returns:
 753  *      Nothing
 754  *
 755  */
 756
 757 void prism2mgmt_bytearea2pstr(u8 *bytearea, struct p80211pstrd *pstr, int len)
 758 {
 759         pstr->len = (u8)len;
 760         memcpy(pstr->data, bytearea, len);
 761 }