drivers/net/wireless/prism54/oid_mgt.c

   1 /*
   2  *  Copyright (C) 2003,2004 Aurelien Alleaume <slts@free.fr>
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; either version 2 of the License
   7  *
   8  *  This program is distributed in the hope that it will be useful,
   9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *  GNU General Public License for more details.
  12  *
  13  *  You should have received a copy of the GNU General Public License
  14  *  along with this program; if not, write to the Free Software
  15  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  *
  17  */
  18
  19 #include "prismcompat.h"
  20 #include "islpci_dev.h"
  21 #include "islpci_mgt.h"
  22 #include "isl_oid.h"
  23 #include "oid_mgt.h"
  24 #include "isl_ioctl.h"
  25
  26 /* to convert between channel and freq */
  27 const int frequency_list_bg[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
  28         2447, 2452, 2457, 2462, 2467, 2472, 2484
  29 };
  30
  31 int
  32 channel_of_freq(int f)
  33 {
  34         int c = 0;
  35
  36         if ((f >= 2412) && (f <= 2484)) {
  37                 while ((c < 14) && (f != frequency_list_bg[c]))
  38                         c++;
  39                 return (c >= 14) ? 0 : ++c;
  40         } else if ((f >= (int) 5000) && (f <= (int) 6000)) {
  41                 return ( (f - 5000) / 5 );
  42         } else
  43                 return 0;
  44 }
  45
  46 #define OID_STRUCT(name,oid,s,t) [name] = {oid, 0, sizeof(s), t}
  47 #define OID_STRUCT_C(name,oid,s,t) OID_STRUCT(name,oid,s,t | OID_FLAG_CACHED)
  48 #define OID_U32(name,oid) OID_STRUCT(name,oid,u32,OID_TYPE_U32)
  49 #define OID_U32_C(name,oid) OID_STRUCT_C(name,oid,u32,OID_TYPE_U32)
  50 #define OID_STRUCT_MLME(name,oid) OID_STRUCT(name,oid,struct obj_mlme,OID_TYPE_MLME)
  51 #define OID_STRUCT_MLMEEX(name,oid) OID_STRUCT(name,oid,struct obj_mlmeex,OID_TYPE_MLMEEX)
  52
  53 #define OID_UNKNOWN(name,oid) OID_STRUCT(name,oid,0,0)
  54
  55 struct oid_t isl_oid[] = {
  56         OID_STRUCT(GEN_OID_MACADDRESS, 0x00000000, u8[6], OID_TYPE_ADDR),
  57         OID_U32(GEN_OID_LINKSTATE, 0x00000001),
  58         OID_UNKNOWN(GEN_OID_WATCHDOG, 0x00000002),
  59         OID_UNKNOWN(GEN_OID_MIBOP, 0x00000003),
  60         OID_UNKNOWN(GEN_OID_OPTIONS, 0x00000004),
  61         OID_UNKNOWN(GEN_OID_LEDCONFIG, 0x00000005),
  62
  63         /* 802.11 */
  64         OID_U32_C(DOT11_OID_BSSTYPE, 0x10000000),
  65         OID_STRUCT_C(DOT11_OID_BSSID, 0x10000001, u8[6], OID_TYPE_RAW),
  66         OID_STRUCT_C(DOT11_OID_SSID, 0x10000002, struct obj_ssid,
  67                      OID_TYPE_SSID),
  68         OID_U32(DOT11_OID_STATE, 0x10000003),
  69         OID_U32(DOT11_OID_AID, 0x10000004),
  70         OID_STRUCT(DOT11_OID_COUNTRYSTRING, 0x10000005, u8[4], OID_TYPE_RAW),
  71         OID_STRUCT_C(DOT11_OID_SSIDOVERRIDE, 0x10000006, struct obj_ssid,
  72                      OID_TYPE_SSID),
  73
  74         OID_U32(DOT11_OID_MEDIUMLIMIT, 0x11000000),
  75         OID_U32_C(DOT11_OID_BEACONPERIOD, 0x11000001),
  76         OID_U32(DOT11_OID_DTIMPERIOD, 0x11000002),
  77         OID_U32(DOT11_OID_ATIMWINDOW, 0x11000003),
  78         OID_U32(DOT11_OID_LISTENINTERVAL, 0x11000004),
  79         OID_U32(DOT11_OID_CFPPERIOD, 0x11000005),
  80         OID_U32(DOT11_OID_CFPDURATION, 0x11000006),
  81
  82         OID_U32_C(DOT11_OID_AUTHENABLE, 0x12000000),
  83         OID_U32_C(DOT11_OID_PRIVACYINVOKED, 0x12000001),
  84         OID_U32_C(DOT11_OID_EXUNENCRYPTED, 0x12000002),
  85         OID_U32_C(DOT11_OID_DEFKEYID, 0x12000003),
  86         [DOT11_OID_DEFKEYX] = {0x12000004, 3, sizeof (struct obj_key),
  87                                OID_FLAG_CACHED | OID_TYPE_KEY}, /* DOT11_OID_DEFKEY1,...DOT11_OID_DEFKEY4 */
  88         OID_UNKNOWN(DOT11_OID_STAKEY, 0x12000008),
  89         OID_U32(DOT11_OID_REKEYTHRESHOLD, 0x12000009),
  90         OID_UNKNOWN(DOT11_OID_STASC, 0x1200000a),
  91
  92         OID_U32(DOT11_OID_PRIVTXREJECTED, 0x1a000000),
  93         OID_U32(DOT11_OID_PRIVRXPLAIN, 0x1a000001),
  94         OID_U32(DOT11_OID_PRIVRXFAILED, 0x1a000002),
  95         OID_U32(DOT11_OID_PRIVRXNOKEY, 0x1a000003),
  96
  97         OID_U32_C(DOT11_OID_RTSTHRESH, 0x13000000),
  98         OID_U32_C(DOT11_OID_FRAGTHRESH, 0x13000001),
  99         OID_U32_C(DOT11_OID_SHORTRETRIES, 0x13000002),
 100         OID_U32_C(DOT11_OID_LONGRETRIES, 0x13000003),
 101         OID_U32_C(DOT11_OID_MAXTXLIFETIME, 0x13000004),
 102         OID_U32(DOT11_OID_MAXRXLIFETIME, 0x13000005),
 103         OID_U32(DOT11_OID_AUTHRESPTIMEOUT, 0x13000006),
 104         OID_U32(DOT11_OID_ASSOCRESPTIMEOUT, 0x13000007),
 105
 106         OID_UNKNOWN(DOT11_OID_ALOFT_TABLE, 0x1d000000),
 107         OID_UNKNOWN(DOT11_OID_ALOFT_CTRL_TABLE, 0x1d000001),
 108         OID_UNKNOWN(DOT11_OID_ALOFT_RETREAT, 0x1d000002),
 109         OID_UNKNOWN(DOT11_OID_ALOFT_PROGRESS, 0x1d000003),
 110         OID_U32(DOT11_OID_ALOFT_FIXEDRATE, 0x1d000004),
 111         OID_UNKNOWN(DOT11_OID_ALOFT_RSSIGRAPH, 0x1d000005),
 112         OID_UNKNOWN(DOT11_OID_ALOFT_CONFIG, 0x1d000006),
 113
 114         [DOT11_OID_VDCFX] = {0x1b000000, 7, 0, 0},
 115         OID_U32(DOT11_OID_MAXFRAMEBURST, 0x1b000008),
 116
 117         OID_U32(DOT11_OID_PSM, 0x14000000),
 118         OID_U32(DOT11_OID_CAMTIMEOUT, 0x14000001),
 119         OID_U32(DOT11_OID_RECEIVEDTIMS, 0x14000002),
 120         OID_U32(DOT11_OID_ROAMPREFERENCE, 0x14000003),
 121
 122         OID_U32(DOT11_OID_BRIDGELOCAL, 0x15000000),
 123         OID_U32(DOT11_OID_CLIENTS, 0x15000001),
 124         OID_U32(DOT11_OID_CLIENTSASSOCIATED, 0x15000002),
 125         [DOT11_OID_CLIENTX] = {0x15000003, 2006, 0, 0}, /* DOT11_OID_CLIENTX,...DOT11_OID_CLIENT2007 */
 126
 127         OID_STRUCT(DOT11_OID_CLIENTFIND, 0x150007DB, u8[6], OID_TYPE_ADDR),
 128         OID_STRUCT(DOT11_OID_WDSLINKADD, 0x150007DC, u8[6], OID_TYPE_ADDR),
 129         OID_STRUCT(DOT11_OID_WDSLINKREMOVE, 0x150007DD, u8[6], OID_TYPE_ADDR),
 130         OID_STRUCT(DOT11_OID_EAPAUTHSTA, 0x150007DE, u8[6], OID_TYPE_ADDR),
 131         OID_STRUCT(DOT11_OID_EAPUNAUTHSTA, 0x150007DF, u8[6], OID_TYPE_ADDR),
 132         OID_U32_C(DOT11_OID_DOT1XENABLE, 0x150007E0),
 133         OID_UNKNOWN(DOT11_OID_MICFAILURE, 0x150007E1),
 134         OID_UNKNOWN(DOT11_OID_REKEYINDICATE, 0x150007E2),
 135
 136         OID_U32(DOT11_OID_MPDUTXSUCCESSFUL, 0x16000000),
 137         OID_U32(DOT11_OID_MPDUTXONERETRY, 0x16000001),
 138         OID_U32(DOT11_OID_MPDUTXMULTIPLERETRIES, 0x16000002),
 139         OID_U32(DOT11_OID_MPDUTXFAILED, 0x16000003),
 140         OID_U32(DOT11_OID_MPDURXSUCCESSFUL, 0x16000004),
 141         OID_U32(DOT11_OID_MPDURXDUPS, 0x16000005),
 142         OID_U32(DOT11_OID_RTSSUCCESSFUL, 0x16000006),
 143         OID_U32(DOT11_OID_RTSFAILED, 0x16000007),
 144         OID_U32(DOT11_OID_ACKFAILED, 0x16000008),
 145         OID_U32(DOT11_OID_FRAMERECEIVES, 0x16000009),
 146         OID_U32(DOT11_OID_FRAMEERRORS, 0x1600000A),
 147         OID_U32(DOT11_OID_FRAMEABORTS, 0x1600000B),
 148         OID_U32(DOT11_OID_FRAMEABORTSPHY, 0x1600000C),
 149
 150         OID_U32(DOT11_OID_SLOTTIME, 0x17000000),
 151         OID_U32(DOT11_OID_CWMIN, 0x17000001),
 152         OID_U32(DOT11_OID_CWMAX, 0x17000002),
 153         OID_U32(DOT11_OID_ACKWINDOW, 0x17000003),
 154         OID_U32(DOT11_OID_ANTENNARX, 0x17000004),
 155         OID_U32(DOT11_OID_ANTENNATX, 0x17000005),
 156         OID_U32(DOT11_OID_ANTENNADIVERSITY, 0x17000006),
 157         OID_U32_C(DOT11_OID_CHANNEL, 0x17000007),
 158         OID_U32_C(DOT11_OID_EDTHRESHOLD, 0x17000008),
 159         OID_U32(DOT11_OID_PREAMBLESETTINGS, 0x17000009),
 160         OID_STRUCT(DOT11_OID_RATES, 0x1700000A, u8[IWMAX_BITRATES + 1],
 161                    OID_TYPE_RAW),
 162         OID_U32(DOT11_OID_CCAMODESUPPORTED, 0x1700000B),
 163         OID_U32(DOT11_OID_CCAMODE, 0x1700000C),
 164         OID_UNKNOWN(DOT11_OID_RSSIVECTOR, 0x1700000D),
 165         OID_UNKNOWN(DOT11_OID_OUTPUTPOWERTABLE, 0x1700000E),
 166         OID_U32(DOT11_OID_OUTPUTPOWER, 0x1700000F),
 167         OID_STRUCT(DOT11_OID_SUPPORTEDRATES, 0x17000010,
 168                    u8[IWMAX_BITRATES + 1], OID_TYPE_RAW),
 169         OID_U32_C(DOT11_OID_FREQUENCY, 0x17000011),
 170         [DOT11_OID_SUPPORTEDFREQUENCIES] =
 171             {0x17000012, 0, sizeof (struct obj_frequencies)
 172              + sizeof (u16) * IWMAX_FREQ, OID_TYPE_FREQUENCIES},
 173
 174         OID_U32(DOT11_OID_NOISEFLOOR, 0x17000013),
 175         OID_STRUCT(DOT11_OID_FREQUENCYACTIVITY, 0x17000014, u8[IWMAX_FREQ + 1],
 176                    OID_TYPE_RAW),
 177         OID_UNKNOWN(DOT11_OID_IQCALIBRATIONTABLE, 0x17000015),
 178         OID_U32(DOT11_OID_NONERPPROTECTION, 0x17000016),
 179         OID_U32(DOT11_OID_SLOTSETTINGS, 0x17000017),
 180         OID_U32(DOT11_OID_NONERPTIMEOUT, 0x17000018),
 181         OID_U32(DOT11_OID_PROFILES, 0x17000019),
 182         OID_STRUCT(DOT11_OID_EXTENDEDRATES, 0x17000020,
 183                    u8[IWMAX_BITRATES + 1], OID_TYPE_RAW),
 184
 185         OID_STRUCT_MLME(DOT11_OID_DEAUTHENTICATE, 0x18000000),
 186         OID_STRUCT_MLME(DOT11_OID_AUTHENTICATE, 0x18000001),
 187         OID_STRUCT_MLME(DOT11_OID_DISASSOCIATE, 0x18000002),
 188         OID_STRUCT_MLME(DOT11_OID_ASSOCIATE, 0x18000003),
 189         OID_UNKNOWN(DOT11_OID_SCAN, 0x18000004),
 190         OID_STRUCT_MLMEEX(DOT11_OID_BEACON, 0x18000005),
 191         OID_STRUCT_MLMEEX(DOT11_OID_PROBE, 0x18000006),
 192         OID_STRUCT_MLMEEX(DOT11_OID_DEAUTHENTICATEEX, 0x18000007),
 193         OID_STRUCT_MLMEEX(DOT11_OID_AUTHENTICATEEX, 0x18000008),
 194         OID_STRUCT_MLMEEX(DOT11_OID_DISASSOCIATEEX, 0x18000009),
 195         OID_STRUCT_MLMEEX(DOT11_OID_ASSOCIATEEX, 0x1800000A),
 196         OID_STRUCT_MLMEEX(DOT11_OID_REASSOCIATE, 0x1800000B),
 197         OID_STRUCT_MLMEEX(DOT11_OID_REASSOCIATEEX, 0x1800000C),
 198
 199         OID_U32(DOT11_OID_NONERPSTATUS, 0x1E000000),
 200
 201         OID_U32(DOT11_OID_STATIMEOUT, 0x19000000),
 202         OID_U32_C(DOT11_OID_MLMEAUTOLEVEL, 0x19000001),
 203         OID_U32(DOT11_OID_BSSTIMEOUT, 0x19000002),
 204         OID_UNKNOWN(DOT11_OID_ATTACHMENT, 0x19000003),
 205         OID_STRUCT_C(DOT11_OID_PSMBUFFER, 0x19000004, struct obj_buffer,
 206                      OID_TYPE_BUFFER),
 207
 208         OID_U32(DOT11_OID_BSSS, 0x1C000000),
 209         [DOT11_OID_BSSX] = {0x1C000001, 63, sizeof (struct obj_bss),
 210                             OID_TYPE_BSS},      /*DOT11_OID_BSS1,...,DOT11_OID_BSS64 */
 211         OID_STRUCT(DOT11_OID_BSSFIND, 0x1C000042, struct obj_bss, OID_TYPE_BSS),
 212         [DOT11_OID_BSSLIST] = {0x1C000043, 0, sizeof (struct
 213                                                       obj_bsslist) +
 214                                sizeof (struct obj_bss[IWMAX_BSS]),
 215                                OID_TYPE_BSSLIST},
 216
 217         OID_UNKNOWN(OID_INL_TUNNEL, 0xFF020000),
 218         OID_UNKNOWN(OID_INL_MEMADDR, 0xFF020001),
 219         OID_UNKNOWN(OID_INL_MEMORY, 0xFF020002),
 220         OID_U32_C(OID_INL_MODE, 0xFF020003),
 221         OID_UNKNOWN(OID_INL_COMPONENT_NR, 0xFF020004),
 222         OID_UNKNOWN(OID_INL_VERSION, 0xFF020005),
 223         OID_UNKNOWN(OID_INL_INTERFACE_ID, 0xFF020006),
 224         OID_UNKNOWN(OID_INL_COMPONENT_ID, 0xFF020007),
 225         OID_U32_C(OID_INL_CONFIG, 0xFF020008),
 226         OID_U32_C(OID_INL_DOT11D_CONFORMANCE, 0xFF02000C),
 227         OID_U32(OID_INL_PHYCAPABILITIES, 0xFF02000D),
 228         OID_U32_C(OID_INL_OUTPUTPOWER, 0xFF02000F),
 229
 230 };
 231
 232 int
 233 mgt_init(islpci_private *priv)
 234 {
 235         int i;
 236
 237         priv->mib = kmalloc(OID_NUM_LAST * sizeof (void *), GFP_KERNEL);
 238         if (!priv->mib)
 239                 return -ENOMEM;
 240
 241         memset(priv->mib, 0, OID_NUM_LAST * sizeof (void *));
 242
 243         /* Alloc the cache */
 244         for (i = 0; i < OID_NUM_LAST; i++) {
 245                 if (isl_oid[i].flags & OID_FLAG_CACHED) {
 246                         priv->mib[i] = kmalloc(isl_oid[i].size *
 247                                                (isl_oid[i].range + 1),
 248                                                GFP_KERNEL);
 249                         if (!priv->mib[i])
 250                                 return -ENOMEM;
 251                         memset(priv->mib[i], 0,
 252                                isl_oid[i].size * (isl_oid[i].range + 1));
 253                 } else
 254                         priv->mib[i] = NULL;
 255         }
 256
 257         init_rwsem(&priv->mib_sem);
 258         prism54_mib_init(priv);
 259
 260         return 0;
 261 }
 262
 263 void
 264 mgt_clean(islpci_private *priv)
 265 {
 266         int i;
 267
 268         if (!priv->mib)
 269                 return;
 270         for (i = 0; i < OID_NUM_LAST; i++)
 271                 if (priv->mib[i]) {
 272                         kfree(priv->mib[i]);
 273                         priv->mib[i] = NULL;
 274                 }
 275         kfree(priv->mib);
 276         priv->mib = NULL;
 277 }
 278
 279 void
 280 mgt_le_to_cpu(int type, void *data)
 281 {
 282         switch (type) {
 283         case OID_TYPE_U32:
 284                 *(u32 *) data = le32_to_cpu(*(u32 *) data);
 285                 break;
 286         case OID_TYPE_BUFFER:{
 287                         struct obj_buffer *buff = data;
 288                         buff->size = le32_to_cpu(buff->size);
 289                         buff->addr = le32_to_cpu(buff->addr);
 290                         break;
 291                 }
 292         case OID_TYPE_BSS:{
 293                         struct obj_bss *bss = data;
 294                         bss->age = le16_to_cpu(bss->age);
 295                         bss->channel = le16_to_cpu(bss->channel);
 296                         bss->capinfo = le16_to_cpu(bss->capinfo);
 297                         bss->rates = le16_to_cpu(bss->rates);
 298                         bss->basic_rates = le16_to_cpu(bss->basic_rates);
 299                         break;
 300                 }
 301         case OID_TYPE_BSSLIST:{
 302                         struct obj_bsslist *list = data;
 303                         int i;
 304                         list->nr = le32_to_cpu(list->nr);
 305                         for (i = 0; i < list->nr; i++)
 306                                 mgt_le_to_cpu(OID_TYPE_BSS, &list->bsslist[i]);
 307                         break;
 308                 }
 309         case OID_TYPE_FREQUENCIES:{
 310                         struct obj_frequencies *freq = data;
 311                         int i;
 312                         freq->nr = le16_to_cpu(freq->nr);
 313                         for (i = 0; i < freq->nr; i++)
 314                                 freq->mhz[i] = le16_to_cpu(freq->mhz[i]);
 315                         break;
 316                 }
 317         case OID_TYPE_MLME:{
 318                         struct obj_mlme *mlme = data;
 319                         mlme->id = le16_to_cpu(mlme->id);
 320                         mlme->state = le16_to_cpu(mlme->state);
 321                         mlme->code = le16_to_cpu(mlme->code);
 322                         break;
 323                 }
 324         case OID_TYPE_MLMEEX:{
 325                         struct obj_mlmeex *mlme = data;
 326                         mlme->id = le16_to_cpu(mlme->id);
 327                         mlme->state = le16_to_cpu(mlme->state);
 328                         mlme->code = le16_to_cpu(mlme->code);
 329                         mlme->size = le16_to_cpu(mlme->size);
 330                         break;
 331                 }
 332         case OID_TYPE_SSID:
 333         case OID_TYPE_KEY:
 334         case OID_TYPE_ADDR:
 335         case OID_TYPE_RAW:
 336                 break;
 337         default:
 338                 BUG();
 339         }
 340 }
 341
 342 static void
 343 mgt_cpu_to_le(int type, void *data)
 344 {
 345         switch (type) {
 346         case OID_TYPE_U32:
 347                 *(u32 *) data = cpu_to_le32(*(u32 *) data);
 348                 break;
 349         case OID_TYPE_BUFFER:{
 350                         struct obj_buffer *buff = data;
 351                         buff->size = cpu_to_le32(buff->size);
 352                         buff->addr = cpu_to_le32(buff->addr);
 353                         break;
 354                 }
 355         case OID_TYPE_BSS:{
 356                         struct obj_bss *bss = data;
 357                         bss->age = cpu_to_le16(bss->age);
 358                         bss->channel = cpu_to_le16(bss->channel);
 359                         bss->capinfo = cpu_to_le16(bss->capinfo);
 360                         bss->rates = cpu_to_le16(bss->rates);
 361                         bss->basic_rates = cpu_to_le16(bss->basic_rates);
 362                         break;
 363                 }
 364         case OID_TYPE_BSSLIST:{
 365                         struct obj_bsslist *list = data;
 366                         int i;
 367                         list->nr = cpu_to_le32(list->nr);
 368                         for (i = 0; i < list->nr; i++)
 369                                 mgt_cpu_to_le(OID_TYPE_BSS, &list->bsslist[i]);
 370                         break;
 371                 }
 372         case OID_TYPE_FREQUENCIES:{
 373                         struct obj_frequencies *freq = data;
 374                         int i;
 375                         freq->nr = cpu_to_le16(freq->nr);
 376                         for (i = 0; i < freq->nr; i++)
 377                                 freq->mhz[i] = cpu_to_le16(freq->mhz[i]);
 378                         break;
 379                 }
 380         case OID_TYPE_MLME:{
 381                         struct obj_mlme *mlme = data;
 382                         mlme->id = cpu_to_le16(mlme->id);
 383                         mlme->state = cpu_to_le16(mlme->state);
 384                         mlme->code = cpu_to_le16(mlme->code);
 385                         break;
 386                 }
 387         case OID_TYPE_MLMEEX:{
 388                         struct obj_mlmeex *mlme = data;
 389                         mlme->id = cpu_to_le16(mlme->id);
 390                         mlme->state = cpu_to_le16(mlme->state);
 391                         mlme->code = cpu_to_le16(mlme->code);
 392                         mlme->size = cpu_to_le16(mlme->size);
 393                         break;
 394                 }
 395         case OID_TYPE_SSID:
 396         case OID_TYPE_KEY:
 397         case OID_TYPE_ADDR:
 398         case OID_TYPE_RAW:
 399                 break;
 400         default:
 401                 BUG();
 402         }
 403 }
 404
 405 /* Note : data is modified during this function */
 406
 407 int
 408 mgt_set_request(islpci_private *priv, enum oid_num_t n, int extra, void *data)
 409 {
 410         int ret = 0;
 411         struct islpci_mgmtframe *response;
 412         int response_op = PIMFOR_OP_ERROR;
 413         int dlen;
 414         void *cache, *_data = data;
 415         u32 oid;
 416
 417         BUG_ON(OID_NUM_LAST <= n);
 418         BUG_ON(extra > isl_oid[n].range);
 419
 420         if (!priv->mib)
 421                 /* memory has been freed */
 422                 return -1;
 423
 424         dlen = isl_oid[n].size;
 425         cache = priv->mib[n];
 426         cache += (cache ? extra * dlen : 0);
 427         oid = isl_oid[n].oid + extra;
 428
 429         if (_data == NULL)
 430                 /* we are requested to re-set a cached value */
 431                 _data = cache;
 432         else
 433                 mgt_cpu_to_le(isl_oid[n].flags & OID_FLAG_TYPE, _data);
 434         /* If we are going to write to the cache, we don't want anyone to read
 435          * it -> acquire write lock.
 436          * Else we could acquire a read lock to be sure we don't bother the
 437          * commit process (which takes a write lock). But I'm not sure if it's
 438          * needed.
 439          */
 440         if (cache)
 441                 down_write(&priv->mib_sem);
 442
 443         if (islpci_get_state(priv) >= PRV_STATE_READY) {
 444                 ret = islpci_mgt_transaction(priv->ndev, PIMFOR_OP_SET, oid,
 445                                              _data, dlen, &response);
 446                 if (!ret) {
 447                         response_op = response->header->operation;
 448                         islpci_mgt_release(response);
 449                 }
 450                 if (ret || response_op == PIMFOR_OP_ERROR)
 451                         ret = -EIO;
 452         } else if (!cache)
 453                 ret = -EIO;
 454
 455         if (cache) {
 456                 if (!ret && data)
 457                         memcpy(cache, _data, dlen);
 458                 up_write(&priv->mib_sem);
 459         }
 460
 461         /* re-set given data to what it was */
 462         if (data)
 463                 mgt_le_to_cpu(isl_oid[n].flags & OID_FLAG_TYPE, data);
 464
 465         return ret;
 466 }
 467
 468 int
 469 mgt_get_request(islpci_private *priv, enum oid_num_t n, int extra, void *data,
 470                 union oid_res_t *res)
 471 {
 472
 473         int ret = -EIO;
 474         int reslen = 0;
 475         struct islpci_mgmtframe *response = NULL;
 476
 477         int dlen;
 478         void *cache, *_res = NULL;
 479         u32 oid;
 480
 481         BUG_ON(OID_NUM_LAST <= n);
 482         BUG_ON(extra > isl_oid[n].range);
 483
 484         if (!priv->mib)
 485                 /* memory has been freed */
 486                 return -1;
 487
 488         dlen = isl_oid[n].size;
 489         cache = priv->mib[n];
 490         cache += cache ? extra * dlen : 0;
 491         oid = isl_oid[n].oid + extra;
 492         reslen = dlen;
 493
 494         if (cache)
 495                 down_read(&priv->mib_sem);
 496
 497         if (islpci_get_state(priv) >= PRV_STATE_READY) {
 498                 ret = islpci_mgt_transaction(priv->ndev, PIMFOR_OP_GET,
 499                                              oid, data, dlen, &response);
 500                 if (ret || !response ||
 501                     response->header->operation == PIMFOR_OP_ERROR) {
 502                         if (response)
 503                                 islpci_mgt_release(response);
 504                         ret = -EIO;
 505                 }
 506                 if (!ret) {
 507                         _res = response->data;
 508                         reslen = response->header->length;
 509                 }
 510         } else if (cache) {
 511                 _res = cache;
 512                 ret = 0;
 513         }
 514         if ((isl_oid[n].flags & OID_FLAG_TYPE) == OID_TYPE_U32)
 515                 res->u = ret ? 0 : le32_to_cpu(*(u32 *) _res);
 516         else {
 517                 res->ptr = kmalloc(reslen, GFP_KERNEL);
 518                 BUG_ON(res->ptr == NULL);
 519                 if (ret)
 520                         memset(res->ptr, 0, reslen);
 521                 else {
 522                         memcpy(res->ptr, _res, reslen);
 523                         mgt_le_to_cpu(isl_oid[n].flags & OID_FLAG_TYPE,
 524                                       res->ptr);
 525                 }
 526         }
 527         if (cache)
 528                 up_read(&priv->mib_sem);
 529
 530         if (response && !ret)
 531                 islpci_mgt_release(response);
 532
 533         if (reslen > isl_oid[n].size)
 534                 printk(KERN_DEBUG
 535                        "mgt_get_request(0x%x): received data length was bigger "
 536                        "than expected (%d > %d). Memory is probably corrupted...",
 537                        oid, reslen, isl_oid[n].size);
 538
 539         return ret;
 540 }
 541
 542 /* lock outside */
 543 int
 544 mgt_commit_list(islpci_private *priv, enum oid_num_t *l, int n)
 545 {
 546         int i, ret = 0;
 547         struct islpci_mgmtframe *response;
 548
 549         for (i = 0; i < n; i++) {
 550                 struct oid_t *t = &(isl_oid[l[i]]);
 551                 void *data = priv->mib[l[i]];
 552                 int j = 0;
 553                 u32 oid = t->oid;
 554                 BUG_ON(data == NULL);
 555                 while (j <= t->range) {
 556                         response = NULL;
 557                         ret |= islpci_mgt_transaction(priv->ndev, PIMFOR_OP_SET,
 558                                                       oid, data, t->size,
 559                                                       &response);
 560                         if (response) {
 561                                 ret |= (response->header->operation ==
 562                                         PIMFOR_OP_ERROR);
 563                                 islpci_mgt_release(response);
 564                         }
 565                         j++;
 566                         oid++;
 567                         data += t->size;
 568                 }
 569         }
 570         return ret;
 571 }
 572
 573 /* Lock outside */
 574
 575 void
 576 mgt_set(islpci_private *priv, enum oid_num_t n, void *data)
 577 {
 578         BUG_ON(OID_NUM_LAST <= n);
 579         BUG_ON(priv->mib[n] == NULL);
 580
 581         memcpy(priv->mib[n], data, isl_oid[n].size);
 582         mgt_cpu_to_le(isl_oid[n].flags & OID_FLAG_TYPE, priv->mib[n]);
 583 }
 584
 585 void
 586 mgt_get(islpci_private *priv, enum oid_num_t n, void *res)
 587 {
 588         BUG_ON(OID_NUM_LAST <= n);
 589         BUG_ON(priv->mib[n] == NULL);
 590         BUG_ON(res == NULL);
 591
 592         memcpy(res, priv->mib[n], isl_oid[n].size);
 593         mgt_le_to_cpu(isl_oid[n].flags & OID_FLAG_TYPE, res);
 594 }
 595
 596 /* Commits the cache. Lock outside. */
 597
 598 static enum oid_num_t commit_part1[] = {
 599         OID_INL_CONFIG,
 600         OID_INL_MODE,
 601         DOT11_OID_BSSTYPE,
 602         DOT11_OID_CHANNEL,
 603         DOT11_OID_MLMEAUTOLEVEL
 604 };
 605
 606 static enum oid_num_t commit_part2[] = {
 607         DOT11_OID_SSID,
 608         DOT11_OID_PSMBUFFER,
 609         DOT11_OID_AUTHENABLE,
 610         DOT11_OID_PRIVACYINVOKED,
 611         DOT11_OID_EXUNENCRYPTED,
 612         DOT11_OID_DEFKEYX,      /* MULTIPLE */
 613         DOT11_OID_DEFKEYID,
 614         DOT11_OID_DOT1XENABLE,
 615         OID_INL_DOT11D_CONFORMANCE,
 616         OID_INL_OUTPUTPOWER,
 617 };
 618
 619 /* update the MAC addr. */
 620 static int
 621 mgt_update_addr(islpci_private *priv)
 622 {
 623         struct islpci_mgmtframe *res;
 624         int ret;
 625
 626         ret = islpci_mgt_transaction(priv->ndev, PIMFOR_OP_GET,
 627                                      isl_oid[GEN_OID_MACADDRESS].oid, NULL,
 628                                      isl_oid[GEN_OID_MACADDRESS].size, &res);
 629
 630         if ((ret == 0) && res && (res->header->operation != PIMFOR_OP_ERROR))
 631                 memcpy(priv->ndev->dev_addr, res->data, 6);
 632         else
 633                 ret = -EIO;
 634         if (res)
 635                 islpci_mgt_release(res);
 636
 637         return ret;
 638 }
 639
 640 void
 641 mgt_commit(islpci_private *priv)
 642 {
 643         int rvalue;
 644         u32 u;
 645
 646         if (islpci_get_state(priv) < PRV_STATE_INIT)
 647                 return;
 648
 649         rvalue = mgt_commit_list(priv, commit_part1,
 650                                  sizeof (commit_part1) /
 651                                  sizeof (commit_part1[0]));
 652
 653         if (priv->iw_mode != IW_MODE_MONITOR)
 654                 rvalue |= mgt_commit_list(priv, commit_part2,
 655                                           sizeof (commit_part2) /
 656                                           sizeof (commit_part2[0]));
 657
 658         u = OID_INL_MODE;
 659         rvalue |= mgt_commit_list(priv, &u, 1);
 660         rvalue |= mgt_update_addr(priv);
 661
 662         if (rvalue) {
 663                 /* some request have failed. The device might be in an
 664                    incoherent state. We should reset it ! */
 665                 printk(KERN_DEBUG "%s: mgt_commit has failed. Restart the "
 666                        "device \n", priv->ndev->name);
 667         }
 668 }
 669
 670 /* This will tell you if you are allowed to answer a mlme(ex) request .*/
 671
 672 int
 673 mgt_mlme_answer(islpci_private *priv)
 674 {
 675         u32 mlmeautolevel;
 676         /* Acquire a read lock because if we are in a mode change, it's
 677          * possible to answer true, while the card is leaving master to managed
 678          * mode. Answering to a mlme in this situation could hang the card.
 679          */
 680         down_read(&priv->mib_sem);
 681         mlmeautolevel =
 682             le32_to_cpu(*(u32 *) priv->mib[DOT11_OID_MLMEAUTOLEVEL]);
 683         up_read(&priv->mib_sem);
 684
 685         return ((priv->iw_mode == IW_MODE_MASTER) &&
 686                 (mlmeautolevel >= DOT11_MLME_INTERMEDIATE));
 687 }
 688
 689 enum oid_num_t
 690 mgt_oidtonum(u32 oid)
 691 {
 692         int i;
 693
 694         for (i = 0; i < OID_NUM_LAST; i++)
 695                 if (isl_oid[i].oid == oid)
 696                         return i;
 697
 698         printk(KERN_DEBUG "looking for an unknown oid 0x%x", oid);
 699
 700         return OID_NUM_LAST;
 701 }
 702
 703 int
 704 mgt_response_to_str(enum oid_num_t n, union oid_res_t *r, char *str)
 705 {
 706         switch (isl_oid[n].flags & OID_FLAG_TYPE) {
 707         case OID_TYPE_U32:
 708                 return snprintf(str, PRIV_STR_SIZE, "%u\n", r->u);
 709                 break;
 710         case OID_TYPE_BUFFER:{
 711                         struct obj_buffer *buff = r->ptr;
 712                         return snprintf(str, PRIV_STR_SIZE,
 713                                         "size=%u\naddr=0x%X\n", buff->size,
 714                                         buff->addr);
 715                 }
 716                 break;
 717         case OID_TYPE_BSS:{
 718                         struct obj_bss *bss = r->ptr;
 719                         return snprintf(str, PRIV_STR_SIZE,
 720                                         "age=%u\nchannel=%u\n"
 721                                         "capinfo=0x%X\nrates=0x%X\n"
 722                                         "basic_rates=0x%X\n", bss->age,
 723                                         bss->channel, bss->capinfo,
 724                                         bss->rates, bss->basic_rates);
 725                 }
 726                 break;
 727         case OID_TYPE_BSSLIST:{
 728                         struct obj_bsslist *list = r->ptr;
 729                         int i, k;
 730                         k = snprintf(str, PRIV_STR_SIZE, "nr=%u\n", list->nr);
 731                         for (i = 0; i < list->nr; i++)
 732                                 k += snprintf(str + k, PRIV_STR_SIZE - k,
 733                                               "bss[%u] : \nage=%u\nchannel=%u\n"
 734                                               "capinfo=0x%X\nrates=0x%X\n"
 735                                               "basic_rates=0x%X\n",
 736                                               i, list->bsslist[i].age,
 737                                               list->bsslist[i].channel,
 738                                               list->bsslist[i].capinfo,
 739                                               list->bsslist[i].rates,
 740                                               list->bsslist[i].basic_rates);
 741                         return k;
 742                 }
 743                 break;
 744         case OID_TYPE_FREQUENCIES:{
 745                         struct obj_frequencies *freq = r->ptr;
 746                         int i, t;
 747                         printk("nr : %u\n", freq->nr);
 748                         t = snprintf(str, PRIV_STR_SIZE, "nr=%u\n", freq->nr);
 749                         for (i = 0; i < freq->nr; i++)
 750                                 t += snprintf(str + t, PRIV_STR_SIZE - t,
 751                                               "mhz[%u]=%u\n", i, freq->mhz[i]);
 752                         return t;
 753                 }
 754                 break;
 755         case OID_TYPE_MLME:{
 756                         struct obj_mlme *mlme = r->ptr;
 757                         return snprintf(str, PRIV_STR_SIZE,
 758                                         "id=0x%X\nstate=0x%X\ncode=0x%X\n",
 759                                         mlme->id, mlme->state, mlme->code);
 760                 }
 761                 break;
 762         case OID_TYPE_MLMEEX:{
 763                         struct obj_mlmeex *mlme = r->ptr;
 764                         return snprintf(str, PRIV_STR_SIZE,
 765                                         "id=0x%X\nstate=0x%X\n"
 766                                         "code=0x%X\nsize=0x%X\n", mlme->id,
 767                                         mlme->state, mlme->code, mlme->size);
 768                 }
 769                 break;
 770         case OID_TYPE_SSID:{
 771                         struct obj_ssid *ssid = r->ptr;
 772                         return snprintf(str, PRIV_STR_SIZE,
 773                                         "length=%u\noctets=%.*s\n",
 774                                         ssid->length, ssid->length,
 775                                         ssid->octets);
 776                 }
 777                 break;
 778         case OID_TYPE_KEY:{
 779                         struct obj_key *key = r->ptr;
 780                         int t, i;
 781                         t = snprintf(str, PRIV_STR_SIZE,
 782                                      "type=0x%X\nlength=0x%X\nkey=0x",
 783                                      key->type, key->length);
 784                         for (i = 0; i < key->length; i++)
 785                                 t += snprintf(str + t, PRIV_STR_SIZE - t,
 786                                               "%02X:", key->key[i]);
 787                         t += snprintf(str + t, PRIV_STR_SIZE - t, "\n");
 788                         return t;
 789                 }
 790                 break;
 791         case OID_TYPE_RAW:
 792         case OID_TYPE_ADDR:{
 793                         unsigned char *buff = r->ptr;
 794                         int t, i;
 795                         t = snprintf(str, PRIV_STR_SIZE, "hex data=");
 796                         for (i = 0; i < isl_oid[n].size; i++)
 797                                 t += snprintf(str + t, PRIV_STR_SIZE - t,
 798                                               "%02X:", buff[i]);
 799                         t += snprintf(str + t, PRIV_STR_SIZE - t, "\n");
 800                         return t;
 801                 }
 802                 break;
 803         default:
 804                 BUG();
 805         }
 806         return 0;
 807 }