drivers/staging/brcm80211/util/bcmsrom.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16 #include <linux/kernel.h>
  17 #include <linux/string.h>
  18 #include <bcmdefs.h>
  19 #include <osl.h>
  20 #include <linux/module.h>
  21 #include <linux/pci.h>
  22 #include <stdarg.h>
  23 #include <bcmutils.h>
  24 #include <hndsoc.h>
  25 #include <sbchipc.h>
  26 #include <bcmdevs.h>
  27 #include <bcmendian.h>
  28 #include <pcicfg.h>
  29 #include <siutils.h>
  30 #include <bcmsrom.h>
  31 #include <bcmsrom_tbl.h>
  32 #ifdef BCMSDIO
  33 #include <bcmsdh.h>
  34 #include <sdio.h>
  35 #endif
  36
  37 #include <bcmnvram.h>
  38 #include <bcmotp.h>
  39
  40 #if defined(BCMSDIO)
  41 #include <sbsdio.h>
  42 #include <sbhnddma.h>
  43 #include <sbsdpcmdev.h>
  44 #endif
  45
  46 #include <proto/ethernet.h>     /* for sprom content groking */
  47
  48 #define BS_ERROR(args)
  49
  50 #define SROM_OFFSET(sih) ((sih->ccrev > 31) ? \
  51         (((sih->cccaps & CC_CAP_SROM) == 0) ? NULL : \
  52          ((u8 *)curmap + PCI_16KB0_CCREGS_OFFSET + CC_SROM_OTP)) : \
  53         ((u8 *)curmap + PCI_BAR0_SPROM_OFFSET))
  54
  55 #if defined(BCMDBG)
  56 #define WRITE_ENABLE_DELAY      500     /* 500 ms after write enable/disable toggle */
  57 #define WRITE_WORD_DELAY        20      /* 20 ms between each word write */
  58 #endif
  59
  60 typedef struct varbuf {
  61         char *base;             /* pointer to buffer base */
  62         char *buf;              /* pointer to current position */
  63         unsigned int size;      /* current (residual) size in bytes */
  64 } varbuf_t;
  65 extern char *_vars;
  66 extern uint _varsz;
  67
  68 #define SROM_CIS_SINGLE 1
  69
  70 static int initvars_srom_si(si_t *sih, struct osl_info *osh, void *curmap,
  71                             char **vars, uint *count);
  72 static void _initvars_srom_pci(u8 sromrev, u16 *srom, uint off,
  73                                varbuf_t *b);
  74 static int initvars_srom_pci(si_t *sih, void *curmap, char **vars,
  75                              uint *count);
  76 static int initvars_flash_si(si_t *sih, char **vars, uint *count);
  77 #ifdef BCMSDIO
  78 static int initvars_cis_sdio(struct osl_info *osh, char **vars, uint *count);
  79 static int sprom_cmd_sdio(struct osl_info *osh, u8 cmd);
  80 static int sprom_read_sdio(struct osl_info *osh, u16 addr, u16 *data);
  81 #endif                          /* BCMSDIO */
  82 static int sprom_read_pci(struct osl_info *osh, si_t *sih, u16 *sprom,
  83                           uint wordoff, u16 *buf, uint nwords, bool check_crc);
  84 #if defined(BCMNVRAMR)
  85 static int otp_read_pci(struct osl_info *osh, si_t *sih, u16 *buf, uint bufsz);
  86 #endif
  87 static u16 srom_cc_cmd(si_t *sih, struct osl_info *osh, void *ccregs, u32 cmd,
  88                           uint wordoff, u16 data);
  89
  90 static int initvars_table(struct osl_info *osh, char *start, char *end,
  91                           char **vars, uint *count);
  92 static int initvars_flash(si_t *sih, struct osl_info *osh, char **vp,
  93                           uint len);
  94
  95 /* Initialization of varbuf structure */
  96 static void varbuf_init(varbuf_t *b, char *buf, uint size)
  97 {
  98         b->size = size;
  99         b->base = b->buf = buf;
 100 }
 101
 102 /* append a null terminated var=value string */
 103 static int varbuf_append(varbuf_t *b, const char *fmt, ...)
 104 {
 105         va_list ap;
 106         int r;
 107         size_t len;
 108         char *s;
 109
 110         if (b->size < 2)
 111                 return 0;
 112
 113         va_start(ap, fmt);
 114         r = vsnprintf(b->buf, b->size, fmt, ap);
 115         va_end(ap);
 116
 117         /* C99 snprintf behavior returns r >= size on overflow,
 118          * others return -1 on overflow.
 119          * All return -1 on format error.
 120          * We need to leave room for 2 null terminations, one for the current var
 121          * string, and one for final null of the var table. So check that the
 122          * strlen written, r, leaves room for 2 chars.
 123          */
 124         if ((r == -1) || (r > (int)(b->size - 2))) {
 125                 b->size = 0;
 126                 return 0;
 127         }
 128
 129         /* Remove any earlier occurrence of the same variable */
 130         s = strchr(b->buf, '=');
 131         if (s != NULL) {
 132                 len = (size_t) (s - b->buf);
 133                 for (s = b->base; s < b->buf;) {
 134                         if ((bcmp(s, b->buf, len) == 0) && s[len] == '=') {
 135                                 len = strlen(s) + 1;
 136                                 memmove(s, (s + len),
 137                                         ((b->buf + r + 1) - (s + len)));
 138                                 b->buf -= len;
 139                                 b->size += (unsigned int)len;
 140                                 break;
 141                         }
 142
 143                         while (*s++)
 144                                 ;
 145                 }
 146         }
 147
 148         /* skip over this string's null termination */
 149         r++;
 150         b->size -= r;
 151         b->buf += r;
 152
 153         return r;
 154 }
 155
 156 /*
 157  * Initialize local vars from the right source for this platform.
 158  * Return 0 on success, nonzero on error.
 159  */
 160 int srom_var_init(si_t *sih, uint bustype, void *curmap, struct osl_info *osh,
 161                   char **vars, uint *count)
 162 {
 163         uint len;
 164
 165         len = 0;
 166
 167         ASSERT(bustype == bustype);
 168         if (vars == NULL || count == NULL)
 169                 return 0;
 170
 171         *vars = NULL;
 172         *count = 0;
 173
 174         switch (bustype) {
 175         case SI_BUS:
 176         case JTAG_BUS:
 177                 return initvars_srom_si(sih, osh, curmap, vars, count);
 178
 179         case PCI_BUS:
 180                 ASSERT(curmap != NULL);
 181                 if (curmap == NULL)
 182                         return -1;
 183
 184                 return initvars_srom_pci(sih, curmap, vars, count);
 185
 186 #ifdef BCMSDIO
 187         case SDIO_BUS:
 188                 return initvars_cis_sdio(osh, vars, count);
 189 #endif                          /* BCMSDIO */
 190
 191         default:
 192                 ASSERT(0);
 193         }
 194         return -1;
 195 }
 196
 197 /* support only 16-bit word read from srom */
 198 int
 199 srom_read(si_t *sih, uint bustype, void *curmap, struct osl_info *osh,
 200           uint byteoff, uint nbytes, u16 *buf, bool check_crc)
 201 {
 202         uint off, nw;
 203 #ifdef BCMSDIO
 204         uint i;
 205 #endif                          /* BCMSDIO */
 206
 207         ASSERT(bustype == bustype);
 208
 209         /* check input - 16-bit access only */
 210         if (byteoff & 1 || nbytes & 1 || (byteoff + nbytes) > SROM_MAX)
 211                 return 1;
 212
 213         off = byteoff / 2;
 214         nw = nbytes / 2;
 215
 216         if (bustype == PCI_BUS) {
 217                 if (!curmap)
 218                         return 1;
 219
 220                 if (si_is_sprom_available(sih)) {
 221                         u16 *srom;
 222
 223                         srom = (u16 *) SROM_OFFSET(sih);
 224                         if (srom == NULL)
 225                                 return 1;
 226
 227                         if (sprom_read_pci
 228                             (osh, sih, srom, off, buf, nw, check_crc))
 229                                 return 1;
 230                 }
 231 #if defined(BCMNVRAMR)
 232                 else {
 233                         if (otp_read_pci(osh, sih, buf, SROM_MAX))
 234                                 return 1;
 235                 }
 236 #endif
 237 #ifdef BCMSDIO
 238         } else if (bustype == SDIO_BUS) {
 239                 off = byteoff / 2;
 240                 nw = nbytes / 2;
 241                 for (i = 0; i < nw; i++) {
 242                         if (sprom_read_sdio
 243                             (osh, (u16) (off + i), (u16 *) (buf + i)))
 244                                 return 1;
 245                 }
 246 #endif                          /* BCMSDIO */
 247         } else if (bustype == SI_BUS) {
 248                 return 1;
 249         } else {
 250                 return 1;
 251         }
 252
 253         return 0;
 254 }
 255
 256 static const char vstr_manf[] = "manf=%s";
 257 static const char vstr_productname[] = "productname=%s";
 258 static const char vstr_manfid[] = "manfid=0x%x";
 259 static const char vstr_prodid[] = "prodid=0x%x";
 260 #ifdef BCMSDIO
 261 static const char vstr_sdmaxspeed[] = "sdmaxspeed=%d";
 262 static const char vstr_sdmaxblk[][13] = {
 263 "sdmaxblk0=%d", "sdmaxblk1=%d", "sdmaxblk2=%d"};
 264 #endif
 265 static const char vstr_regwindowsz[] = "regwindowsz=%d";
 266 static const char vstr_sromrev[] = "sromrev=%d";
 267 static const char vstr_chiprev[] = "chiprev=%d";
 268 static const char vstr_subvendid[] = "subvendid=0x%x";
 269 static const char vstr_subdevid[] = "subdevid=0x%x";
 270 static const char vstr_boardrev[] = "boardrev=0x%x";
 271 static const char vstr_aa2g[] = "aa2g=0x%x";
 272 static const char vstr_aa5g[] = "aa5g=0x%x";
 273 static const char vstr_ag[] = "ag%d=0x%x";
 274 static const char vstr_cc[] = "cc=%d";
 275 static const char vstr_opo[] = "opo=%d";
 276 static const char vstr_pa0b[][9] = {
 277 "pa0b0=%d", "pa0b1=%d", "pa0b2=%d"};
 278
 279 static const char vstr_pa0itssit[] = "pa0itssit=%d";
 280 static const char vstr_pa0maxpwr[] = "pa0maxpwr=%d";
 281 static const char vstr_pa1b[][9] = {
 282 "pa1b0=%d", "pa1b1=%d", "pa1b2=%d"};
 283
 284 static const char vstr_pa1lob[][11] = {
 285 "pa1lob0=%d", "pa1lob1=%d", "pa1lob2=%d"};
 286
 287 static const char vstr_pa1hib[][11] = {
 288 "pa1hib0=%d", "pa1hib1=%d", "pa1hib2=%d"};
 289
 290 static const char vstr_pa1itssit[] = "pa1itssit=%d";
 291 static const char vstr_pa1maxpwr[] = "pa1maxpwr=%d";
 292 static const char vstr_pa1lomaxpwr[] = "pa1lomaxpwr=%d";
 293 static const char vstr_pa1himaxpwr[] = "pa1himaxpwr=%d";
 294 static const char vstr_oem[] =
 295     "oem=%02x%02x%02x%02x%02x%02x%02x%02x";
 296 static const char vstr_boardflags[] = "boardflags=0x%x";
 297 static const char vstr_boardflags2[] = "boardflags2=0x%x";
 298 static const char vstr_ledbh[] = "ledbh%d=0x%x";
 299 static const char vstr_noccode[] = "ccode=0x0";
 300 static const char vstr_ccode[] = "ccode=%c%c";
 301 static const char vstr_cctl[] = "cctl=0x%x";
 302 static const char vstr_cckpo[] = "cckpo=0x%x";
 303 static const char vstr_ofdmpo[] = "ofdmpo=0x%x";
 304 static const char vstr_rdlid[] = "rdlid=0x%x";
 305 static const char vstr_rdlrndis[] = "rdlrndis=%d";
 306 static const char vstr_rdlrwu[] = "rdlrwu=%d";
 307 static const char vstr_usbfs[] = "usbfs=%d";
 308 static const char vstr_wpsgpio[] = "wpsgpio=%d";
 309 static const char vstr_wpsled[] = "wpsled=%d";
 310 static const char vstr_rdlsn[] = "rdlsn=%d";
 311 static const char vstr_rssismf2g[] = "rssismf2g=%d";
 312 static const char vstr_rssismc2g[] = "rssismc2g=%d";
 313 static const char vstr_rssisav2g[] = "rssisav2g=%d";
 314 static const char vstr_bxa2g[] = "bxa2g=%d";
 315 static const char vstr_rssismf5g[] = "rssismf5g=%d";
 316 static const char vstr_rssismc5g[] = "rssismc5g=%d";
 317 static const char vstr_rssisav5g[] = "rssisav5g=%d";
 318 static const char vstr_bxa5g[] = "bxa5g=%d";
 319 static const char vstr_tri2g[] = "tri2g=%d";
 320 static const char vstr_tri5gl[] = "tri5gl=%d";
 321 static const char vstr_tri5g[] = "tri5g=%d";
 322 static const char vstr_tri5gh[] = "tri5gh=%d";
 323 static const char vstr_rxpo2g[] = "rxpo2g=%d";
 324 static const char vstr_rxpo5g[] = "rxpo5g=%d";
 325 static const char vstr_boardtype[] = "boardtype=0x%x";
 326 static const char vstr_leddc[] = "leddc=0x%04x";
 327 static const char vstr_vendid[] = "vendid=0x%x";
 328 static const char vstr_devid[] = "devid=0x%x";
 329 static const char vstr_xtalfreq[] = "xtalfreq=%d";
 330 static const char vstr_txchain[] = "txchain=0x%x";
 331 static const char vstr_rxchain[] = "rxchain=0x%x";
 332 static const char vstr_antswitch[] = "antswitch=0x%x";
 333 static const char vstr_regrev[] = "regrev=0x%x";
 334 static const char vstr_antswctl2g[] = "antswctl2g=0x%x";
 335 static const char vstr_triso2g[] = "triso2g=0x%x";
 336 static const char vstr_pdetrange2g[] = "pdetrange2g=0x%x";
 337 static const char vstr_extpagain2g[] = "extpagain2g=0x%x";
 338 static const char vstr_tssipos2g[] = "tssipos2g=0x%x";
 339 static const char vstr_antswctl5g[] = "antswctl5g=0x%x";
 340 static const char vstr_triso5g[] = "triso5g=0x%x";
 341 static const char vstr_pdetrange5g[] = "pdetrange5g=0x%x";
 342 static const char vstr_extpagain5g[] = "extpagain5g=0x%x";
 343 static const char vstr_tssipos5g[] = "tssipos5g=0x%x";
 344 static const char vstr_maxp2ga0[] = "maxp2ga0=0x%x";
 345 static const char vstr_itt2ga0[] = "itt2ga0=0x%x";
 346 static const char vstr_pa[] = "pa%dgw%da%d=0x%x";
 347 static const char vstr_pahl[] = "pa%dg%cw%da%d=0x%x";
 348 static const char vstr_maxp5ga0[] = "maxp5ga0=0x%x";
 349 static const char vstr_itt5ga0[] = "itt5ga0=0x%x";
 350 static const char vstr_maxp5gha0[] = "maxp5gha0=0x%x";
 351 static const char vstr_maxp5gla0[] = "maxp5gla0=0x%x";
 352 static const char vstr_maxp2ga1[] = "maxp2ga1=0x%x";
 353 static const char vstr_itt2ga1[] = "itt2ga1=0x%x";
 354 static const char vstr_maxp5ga1[] = "maxp5ga1=0x%x";
 355 static const char vstr_itt5ga1[] = "itt5ga1=0x%x";
 356 static const char vstr_maxp5gha1[] = "maxp5gha1=0x%x";
 357 static const char vstr_maxp5gla1[] = "maxp5gla1=0x%x";
 358 static const char vstr_cck2gpo[] = "cck2gpo=0x%x";
 359 static const char vstr_ofdm2gpo[] = "ofdm2gpo=0x%x";
 360 static const char vstr_ofdm5gpo[] = "ofdm5gpo=0x%x";
 361 static const char vstr_ofdm5glpo[] = "ofdm5glpo=0x%x";
 362 static const char vstr_ofdm5ghpo[] = "ofdm5ghpo=0x%x";
 363 static const char vstr_cddpo[] = "cddpo=0x%x";
 364 static const char vstr_stbcpo[] = "stbcpo=0x%x";
 365 static const char vstr_bw40po[] = "bw40po=0x%x";
 366 static const char vstr_bwduppo[] = "bwduppo=0x%x";
 367 static const char vstr_mcspo[] = "mcs%dgpo%d=0x%x";
 368 static const char vstr_mcspohl[] = "mcs%dg%cpo%d=0x%x";
 369 static const char vstr_custom[] = "customvar%d=0x%x";
 370 static const char vstr_cckdigfilttype[] = "cckdigfilttype=%d";
 371 static const char vstr_boardnum[] = "boardnum=%d";
 372 static const char vstr_macaddr[] = "macaddr=%s";
 373 static const char vstr_usbepnum[] = "usbepnum=0x%x";
 374 static const char vstr_end[] = "END\0";
 375
 376 u8 patch_pair;
 377
 378 /* For dongle HW, accept partial calibration parameters */
 379 #define BCMDONGLECASE(n)
 380
 381 int srom_parsecis(struct osl_info *osh, u8 *pcis[], uint ciscnt, char **vars,
 382                   uint *count)
 383 {
 384         char eabuf[32];
 385         char *base;
 386         varbuf_t b;
 387         u8 *cis, tup, tlen, sromrev = 1;
 388         int i, j;
 389         bool ag_init = false;
 390         u32 w32;
 391         uint funcid;
 392         uint cisnum;
 393         s32 boardnum;
 394         int err;
 395         bool standard_cis;
 396
 397         ASSERT(vars != NULL);
 398         ASSERT(count != NULL);
 399
 400         boardnum = -1;
 401
 402         base = kmalloc(MAXSZ_NVRAM_VARS, GFP_ATOMIC);
 403         ASSERT(base != NULL);
 404         if (!base)
 405                 return -2;
 406
 407         varbuf_init(&b, base, MAXSZ_NVRAM_VARS);
 408         bzero(base, MAXSZ_NVRAM_VARS);
 409         eabuf[0] = '\0';
 410         for (cisnum = 0; cisnum < ciscnt; cisnum++) {
 411                 cis = *pcis++;
 412                 i = 0;
 413                 funcid = 0;
 414                 standard_cis = true;
 415                 do {
 416                         if (standard_cis) {
 417                                 tup = cis[i++];
 418                                 if (tup == CISTPL_NULL || tup == CISTPL_END)
 419                                         tlen = 0;
 420                                 else
 421                                         tlen = cis[i++];
 422                         } else {
 423                                 if (cis[i] == CISTPL_NULL
 424                                     || cis[i] == CISTPL_END) {
 425                                         tlen = 0;
 426                                         tup = cis[i];
 427                                 } else {
 428                                         tlen = cis[i];
 429                                         tup = CISTPL_BRCM_HNBU;
 430                                 }
 431                                 ++i;
 432                         }
 433                         if ((i + tlen) >= CIS_SIZE)
 434                                 break;
 435
 436                         switch (tup) {
 437                         case CISTPL_VERS_1:
 438                                 /* assume the strings are good if the version field checks out */
 439                                 if (((cis[i + 1] << 8) + cis[i]) >= 0x0008) {
 440                                         varbuf_append(&b, vstr_manf,
 441                                                       &cis[i + 2]);
 442                                         varbuf_append(&b, vstr_productname,
 443                                                       &cis[i + 3 +
 444                                                            strlen((char *)
 445                                                                   &cis[i +
 446                                                                        2])]);
 447                                         break;
 448                                 }
 449
 450                         case CISTPL_MANFID:
 451                                 varbuf_append(&b, vstr_manfid,
 452                                               (cis[i + 1] << 8) + cis[i]);
 453                                 varbuf_append(&b, vstr_prodid,
 454                                               (cis[i + 3] << 8) + cis[i + 2]);
 455                                 break;
 456
 457                         case CISTPL_FUNCID:
 458                                 funcid = cis[i];
 459                                 break;
 460
 461                         case CISTPL_FUNCE:
 462                                 switch (funcid) {
 463                                 case CISTPL_FID_SDIO:
 464 #ifdef BCMSDIO
 465                                         if (cis[i] == 0) {
 466                                                 u8 spd = cis[i + 3];
 467                                                 static int base[] = {
 468                                                         -1, 10, 12, 13, 15, 20,
 469                                                             25, 30,
 470                                                         35, 40, 45, 50, 55, 60,
 471                                                             70, 80
 472                                                 };
 473                                                 static int mult[] = {
 474                                                         10, 100, 1000, 10000,
 475                                                         -1, -1, -1, -1
 476                                                 };
 477                                                 ASSERT((mult[spd & 0x7] != -1)
 478                                                        &&
 479                                                        (base
 480                                                         [(spd >> 3) & 0x0f]));
 481                                                 varbuf_append(&b,
 482                                                               vstr_sdmaxblk[0],
 483                                                               (cis[i + 2] << 8)
 484                                                               + cis[i + 1]);
 485                                                 varbuf_append(&b,
 486                                                               vstr_sdmaxspeed,
 487                                                               (mult[spd & 0x7] *
 488                                                                base[(spd >> 3) &
 489                                                                     0x0f]));
 490                                         } else if (cis[i] == 1) {
 491                                                 varbuf_append(&b,
 492                                                               vstr_sdmaxblk
 493                                                               [cisnum],
 494                                                               (cis[i + 13] << 8)
 495                                                               | cis[i + 12]);
 496                                         }
 497 #endif                          /* BCMSDIO */
 498                                         funcid = 0;
 499                                         break;
 500                                 default:
 501                                         /* set macaddr if HNBU_MACADDR not seen yet */
 502                                         if (eabuf[0] == '\0'
 503                                             && cis[i] == LAN_NID
 504                                             && !(ETHER_ISNULLADDR(&cis[i + 2]))
 505                                             && !(ETHER_ISMULTI(&cis[i + 2]))) {
 506                                                 ASSERT(cis[i + 1] ==
 507                                                        ETHER_ADDR_LEN);
 508                                                 snprintf(eabuf, sizeof(eabuf),
 509                                                         "%pM", &cis[i + 2]);
 510
 511                                                 /* set boardnum if HNBU_BOARDNUM not seen yet */
 512                                                 if (boardnum == -1)
 513                                                         boardnum =
 514                                                             (cis[i + 6] << 8) +
 515                                                             cis[i + 7];
 516                                         }
 517                                         break;
 518                                 }
 519                                 break;
 520
 521                         case CISTPL_CFTABLE:
 522                                 varbuf_append(&b, vstr_regwindowsz,
 523                                               (cis[i + 7] << 8) | cis[i + 6]);
 524                                 break;
 525
 526                         case CISTPL_BRCM_HNBU:
 527                                 switch (cis[i]) {
 528                                 case HNBU_SROMREV:
 529                                         sromrev = cis[i + 1];
 530                                         varbuf_append(&b, vstr_sromrev,
 531                                                       sromrev);
 532                                         break;
 533
 534                                 case HNBU_XTALFREQ:
 535                                         varbuf_append(&b, vstr_xtalfreq,
 536                                                       (cis[i + 4] << 24) |
 537                                                       (cis[i + 3] << 16) |
 538                                                       (cis[i + 2] << 8) |
 539                                                       cis[i + 1]);
 540                                         break;
 541
 542                                 case HNBU_CHIPID:
 543                                         varbuf_append(&b, vstr_vendid,
 544                                                       (cis[i + 2] << 8) +
 545                                                       cis[i + 1]);
 546                                         varbuf_append(&b, vstr_devid,
 547                                                       (cis[i + 4] << 8) +
 548                                                       cis[i + 3]);
 549                                         if (tlen >= 7) {
 550                                                 varbuf_append(&b, vstr_chiprev,
 551                                                               (cis[i + 6] << 8)
 552                                                               + cis[i + 5]);
 553                                         }
 554                                         if (tlen >= 9) {
 555                                                 varbuf_append(&b,
 556                                                               vstr_subvendid,
 557                                                               (cis[i + 8] << 8)
 558                                                               + cis[i + 7]);
 559                                         }
 560                                         if (tlen >= 11) {
 561                                                 varbuf_append(&b, vstr_subdevid,
 562                                                               (cis[i + 10] << 8)
 563                                                               + cis[i + 9]);
 564                                                 /* subdevid doubles for boardtype */
 565                                                 varbuf_append(&b,
 566                                                               vstr_boardtype,
 567                                                               (cis[i + 10] << 8)
 568                                                               + cis[i + 9]);
 569                                         }
 570                                         break;
 571
 572                                 case HNBU_BOARDNUM:
 573                                         boardnum =
 574                                             (cis[i + 2] << 8) + cis[i + 1];
 575                                         break;
 576
 577                                 case HNBU_PATCH:
 578                                         {
 579                                                 char vstr_paddr[16];
 580                                                 char vstr_pdata[16];
 581
 582                                                 /* retrieve the patch pairs
 583                                                  * from tlen/6; where 6 is
 584                                                  * sizeof(patch addr(2)) +
 585                                                  * sizeof(patch data(4)).
 586                                                  */
 587                                                 patch_pair = tlen / 6;
 588
 589                                                 for (j = 0; j < patch_pair; j++) {
 590                                                         snprintf(vstr_paddr,
 591                                                                  sizeof
 592                                                                  (vstr_paddr),
 593                                                                  "pa%d=0x%%x",
 594                                                                  j);
 595                                                         snprintf(vstr_pdata,
 596                                                                  sizeof
 597                                                                  (vstr_pdata),
 598                                                                  "pd%d=0x%%x",
 599                                                                  j);
 600
 601                                                         varbuf_append(&b,
 602                                                                       vstr_paddr,
 603                                                                       (cis
 604                                                                        [i +
 605                                                                         (j *
 606                                                                          6) +
 607                                                                         2] << 8)
 608                                                                       | cis[i +
 609                                                                             (j *
 610                                                                              6)
 611                                                                             +
 612                                                                             1]);
 613
 614                                                         varbuf_append(&b,
 615                                                                       vstr_pdata,
 616                                                                       (cis
 617                                                                        [i +
 618                                                                         (j *
 619                                                                          6) +
 620                                                                         6] <<
 621                                                                        24) |
 622                                                                       (cis
 623                                                                        [i +
 624                                                                         (j *
 625                                                                          6) +
 626                                                                         5] <<
 627                                                                        16) |
 628                                                                       (cis
 629                                                                        [i +
 630                                                                         (j *
 631                                                                          6) +
 632                                                                         4] << 8)
 633                                                                       | cis[i +
 634                                                                             (j *
 635                                                                              6)
 636                                                                             +
 637                                                                             3]);
 638                                                 }
 639                                         }
 640                                         break;
 641
 642                                 case HNBU_BOARDREV:
 643                                         if (tlen == 2)
 644                                                 varbuf_append(&b, vstr_boardrev,
 645                                                               cis[i + 1]);
 646                                         else
 647                                                 varbuf_append(&b, vstr_boardrev,
 648                                                               (cis[i + 2] << 8)
 649                                                               + cis[i + 1]);
 650                                         break;
 651
 652                                 case HNBU_BOARDFLAGS:
 653                                         w32 = (cis[i + 2] << 8) + cis[i + 1];
 654                                         if (tlen >= 5)
 655                                                 w32 |=
 656                                                     ((cis[i + 4] << 24) +
 657                                                      (cis[i + 3] << 16));
 658                                         varbuf_append(&b, vstr_boardflags, w32);
 659
 660                                         if (tlen >= 7) {
 661                                                 w32 =
 662                                                     (cis[i + 6] << 8) + cis[i +
 663                                                                             5];
 664                                                 if (tlen >= 9)
 665                                                         w32 |=
 666                                                             ((cis[i + 8] << 24)
 667                                                              +
 668                                                              (cis[i + 7] <<
 669                                                               16));
 670                                                 varbuf_append(&b,
 671                                                               vstr_boardflags2,
 672                                                               w32);
 673                                         }
 674                                         break;
 675
 676                                 case HNBU_USBFS:
 677                                         varbuf_append(&b, vstr_usbfs,
 678                                                       cis[i + 1]);
 679                                         break;
 680
 681                                 case HNBU_BOARDTYPE:
 682                                         varbuf_append(&b, vstr_boardtype,
 683                                                       (cis[i + 2] << 8) +
 684                                                       cis[i + 1]);
 685                                         break;
 686
 687                                 case HNBU_HNBUCIS:
 688                                         /*
 689                                          * what follows is a nonstandard HNBU CIS
 690                                          * that lacks CISTPL_BRCM_HNBU tags
 691                                          *
 692                                          * skip 0xff (end of standard CIS)
 693                                          * after this tuple
 694                                          */
 695                                         tlen++;
 696                                         standard_cis = false;
 697                                         break;
 698
 699                                 case HNBU_USBEPNUM:
 700                                         varbuf_append(&b, vstr_usbepnum,
 701                                                       (cis[i + 2] << 8) | cis[i
 702                                                                               +
 703                                                                               1]);
 704                                         break;
 705
 706                                 case HNBU_AA:
 707                                         varbuf_append(&b, vstr_aa2g,
 708                                                       cis[i + 1]);
 709                                         if (tlen >= 3)
 710                                                 varbuf_append(&b, vstr_aa5g,
 711                                                               cis[i + 2]);
 712                                         break;
 713
 714                                 case HNBU_AG:
 715                                         varbuf_append(&b, vstr_ag, 0,
 716                                                       cis[i + 1]);
 717                                         if (tlen >= 3)
 718                                                 varbuf_append(&b, vstr_ag, 1,
 719                                                               cis[i + 2]);
 720                                         if (tlen >= 4)
 721                                                 varbuf_append(&b, vstr_ag, 2,
 722                                                               cis[i + 3]);
 723                                         if (tlen >= 5)
 724                                                 varbuf_append(&b, vstr_ag, 3,
 725                                                               cis[i + 4]);
 726                                         ag_init = true;
 727                                         break;
 728
 729                                 case HNBU_ANT5G:
 730                                         varbuf_append(&b, vstr_aa5g,
 731                                                       cis[i + 1]);
 732                                         varbuf_append(&b, vstr_ag, 1,
 733                                                       cis[i + 2]);
 734                                         break;
 735
 736                                 case HNBU_CC:
 737                                         ASSERT(sromrev == 1);
 738                                         varbuf_append(&b, vstr_cc, cis[i + 1]);
 739                                         break;
 740
 741                                 case HNBU_PAPARMS:
 742                                         switch (tlen) {
 743                                         case 2:
 744                                                 ASSERT(sromrev == 1);
 745                                                 varbuf_append(&b,
 746                                                               vstr_pa0maxpwr,
 747                                                               cis[i + 1]);
 748                                                 break;
 749                                         case 10:
 750                                                 ASSERT(sromrev >= 2);
 751                                                 varbuf_append(&b, vstr_opo,
 752                                                               cis[i + 9]);
 753                                                 /* FALLTHROUGH */
 754                                         case 9:
 755                                                 varbuf_append(&b,
 756                                                               vstr_pa0maxpwr,
 757                                                               cis[i + 8]);
 758                                                 /* FALLTHROUGH */
 759                                                 BCMDONGLECASE(8)
 760                                                     varbuf_append(&b,
 761                                                                   vstr_pa0itssit,
 762                                                                   cis[i + 7]);
 763                                                 /* FALLTHROUGH */
 764                                                 BCMDONGLECASE(7)
 765                                                     for (j = 0; j < 3; j++) {
 766                                                         varbuf_append(&b,
 767                                                                       vstr_pa0b
 768                                                                       [j],
 769                                                                       (cis
 770                                                                        [i +
 771                                                                         (j *
 772                                                                          2) +
 773                                                                         2] << 8)
 774                                                                       + cis[i +
 775                                                                             (j *
 776                                                                              2)
 777                                                                             +
 778                                                                             1]);
 779                                                 }
 780                                                 break;
 781                                         default:
 782                                                 ASSERT((tlen == 2)
 783                                                        || (tlen == 9)
 784                                                        || (tlen == 10));
 785                                                 break;
 786                                         }
 787                                         break;
 788
 789                                 case HNBU_PAPARMS5G:
 790                                         ASSERT((sromrev == 2)
 791                                                || (sromrev == 3));
 792                                         switch (tlen) {
 793                                         case 23:
 794                                                 varbuf_append(&b,
 795                                                               vstr_pa1himaxpwr,
 796                                                               cis[i + 22]);
 797                                                 varbuf_append(&b,
 798                                                               vstr_pa1lomaxpwr,
 799                                                               cis[i + 21]);
 800                                                 varbuf_append(&b,
 801                                                               vstr_pa1maxpwr,
 802                                                               cis[i + 20]);
 803                                                 /* FALLTHROUGH */
 804                                         case 20:
 805                                                 varbuf_append(&b,
 806                                                               vstr_pa1itssit,
 807                                                               cis[i + 19]);
 808                                                 /* FALLTHROUGH */
 809                                         case 19:
 810                                                 for (j = 0; j < 3; j++) {
 811                                                         varbuf_append(&b,
 812                                                                       vstr_pa1b
 813                                                                       [j],
 814                                                                       (cis
 815                                                                        [i +
 816                                                                         (j *
 817                                                                          2) +
 818                                                                         2] << 8)
 819                                                                       + cis[i +
 820                                                                             (j *
 821                                                                              2)
 822                                                                             +
 823                                                                             1]);
 824                                                 }
 825                                                 for (j = 3; j < 6; j++) {
 826                                                         varbuf_append(&b,
 827                                                                       vstr_pa1lob
 828                                                                       [j - 3],
 829                                                                       (cis
 830                                                                        [i +
 831                                                                         (j *
 832                                                                          2) +
 833                                                                         2] << 8)
 834                                                                       + cis[i +
 835                                                                             (j *
 836                                                                              2)
 837                                                                             +
 838                                                                             1]);
 839                                                 }
 840                                                 for (j = 6; j < 9; j++) {
 841                                                         varbuf_append(&b,
 842                                                                       vstr_pa1hib
 843                                                                       [j - 6],
 844                                                                       (cis
 845                                                                        [i +
 846                                                                         (j *
 847                                                                          2) +
 848                                                                         2] << 8)
 849                                                                       + cis[i +
 850                                                                             (j *
 851                                                                              2)
 852                                                                             +
 853                                                                             1]);
 854                                                 }
 855                                                 break;
 856                                         default:
 857                                                 ASSERT((tlen == 19) ||
 858                                                        (tlen == 20)
 859                                                        || (tlen == 23));
 860                                                 break;
 861                                         }
 862                                         break;
 863
 864                                 case HNBU_OEM:
 865                                         ASSERT(sromrev == 1);
 866                                         varbuf_append(&b, vstr_oem,
 867                                                       cis[i + 1], cis[i + 2],
 868                                                       cis[i + 3], cis[i + 4],
 869                                                       cis[i + 5], cis[i + 6],
 870                                                       cis[i + 7], cis[i + 8]);
 871                                         break;
 872
 873                                 case HNBU_LEDS:
 874                                         for (j = 1; j <= 4; j++) {
 875                                                 if (cis[i + j] != 0xff) {
 876                                                         varbuf_append(&b,
 877                                                                       vstr_ledbh,
 878                                                                       j - 1,
 879                                                                       cis[i +
 880                                                                           j]);
 881                                                 }
 882                                         }
 883                                         break;
 884
 885                                 case HNBU_CCODE:
 886                                         ASSERT(sromrev > 1);
 887                                         if ((cis[i + 1] == 0)
 888                                             || (cis[i + 2] == 0))
 889                                                 varbuf_append(&b, vstr_noccode);
 890                                         else
 891                                                 varbuf_append(&b, vstr_ccode,
 892                                                               cis[i + 1],
 893                                                               cis[i + 2]);
 894                                         varbuf_append(&b, vstr_cctl,
 895                                                       cis[i + 3]);
 896                                         break;
 897
 898                                 case HNBU_CCKPO:
 899                                         ASSERT(sromrev > 2);
 900                                         varbuf_append(&b, vstr_cckpo,
 901                                                       (cis[i + 2] << 8) | cis[i
 902                                                                               +
 903                                                                               1]);
 904                                         break;
 905
 906                                 case HNBU_OFDMPO:
 907                                         ASSERT(sromrev > 2);
 908                                         varbuf_append(&b, vstr_ofdmpo,
 909                                                       (cis[i + 4] << 24) |
 910                                                       (cis[i + 3] << 16) |
 911                                                       (cis[i + 2] << 8) |
 912                                                       cis[i + 1]);
 913                                         break;
 914
 915                                 case HNBU_WPS:
 916                                         varbuf_append(&b, vstr_wpsgpio,
 917                                                       cis[i + 1]);
 918                                         if (tlen >= 3)
 919                                                 varbuf_append(&b, vstr_wpsled,
 920                                                               cis[i + 2]);
 921                                         break;
 922
 923                                 case HNBU_RSSISMBXA2G:
 924                                         ASSERT(sromrev == 3);
 925                                         varbuf_append(&b, vstr_rssismf2g,
 926                                                       cis[i + 1] & 0xf);
 927                                         varbuf_append(&b, vstr_rssismc2g,
 928                                                       (cis[i + 1] >> 4) & 0xf);
 929                                         varbuf_append(&b, vstr_rssisav2g,
 930                                                       cis[i + 2] & 0x7);
 931                                         varbuf_append(&b, vstr_bxa2g,
 932                                                       (cis[i + 2] >> 3) & 0x3);
 933                                         break;
 934
 935                                 case HNBU_RSSISMBXA5G:
 936                                         ASSERT(sromrev == 3);
 937                                         varbuf_append(&b, vstr_rssismf5g,
 938                                                       cis[i + 1] & 0xf);
 939                                         varbuf_append(&b, vstr_rssismc5g,
 940                                                       (cis[i + 1] >> 4) & 0xf);
 941                                         varbuf_append(&b, vstr_rssisav5g,
 942                                                       cis[i + 2] & 0x7);
 943                                         varbuf_append(&b, vstr_bxa5g,
 944                                                       (cis[i + 2] >> 3) & 0x3);
 945                                         break;
 946
 947                                 case HNBU_TRI2G:
 948                                         ASSERT(sromrev == 3);
 949                                         varbuf_append(&b, vstr_tri2g,
 950                                                       cis[i + 1]);
 951                                         break;
 952
 953                                 case HNBU_TRI5G:
 954                                         ASSERT(sromrev == 3);
 955                                         varbuf_append(&b, vstr_tri5gl,
 956                                                       cis[i + 1]);
 957                                         varbuf_append(&b, vstr_tri5g,
 958                                                       cis[i + 2]);
 959                                         varbuf_append(&b, vstr_tri5gh,
 960                                                       cis[i + 3]);
 961                                         break;
 962
 963                                 case HNBU_RXPO2G:
 964                                         ASSERT(sromrev == 3);
 965                                         varbuf_append(&b, vstr_rxpo2g,
 966                                                       cis[i + 1]);
 967                                         break;
 968
 969                                 case HNBU_RXPO5G:
 970                                         ASSERT(sromrev == 3);
 971                                         varbuf_append(&b, vstr_rxpo5g,
 972                                                       cis[i + 1]);
 973                                         break;
 974
 975                                 case HNBU_MACADDR:
 976                                         if (!(ETHER_ISNULLADDR(&cis[i + 1])) &&
 977                                             !(ETHER_ISMULTI(&cis[i + 1]))) {
 978                                                 snprintf(eabuf, sizeof(eabuf),
 979                                                         "%pM", &cis[i + 1]);
 980
 981                                                 /* set boardnum if HNBU_BOARDNUM not seen yet */
 982                                                 if (boardnum == -1)
 983                                                         boardnum =
 984                                                             (cis[i + 5] << 8) +
 985                                                             cis[i + 6];
 986                                         }
 987                                         break;
 988
 989                                 case HNBU_LEDDC:
 990                                         /* CIS leddc only has 16bits, convert it to 32bits */
 991                                         w32 = ((cis[i + 2] << 24) |     /* oncount */
 992                                                (cis[i + 1] << 8));      /* offcount */
 993                                         varbuf_append(&b, vstr_leddc, w32);
 994                                         break;
 995
 996                                 case HNBU_CHAINSWITCH:
 997                                         varbuf_append(&b, vstr_txchain,
 998                                                       cis[i + 1]);
 999                                         varbuf_append(&b, vstr_rxchain,
1000                                                       cis[i + 2]);
1001                                         varbuf_append(&b, vstr_antswitch,
1002                                                       (cis[i + 4] << 8) +
1003                                                       cis[i + 3]);
1004                                         break;
1005
1006                                 case HNBU_REGREV:
1007                                         varbuf_append(&b, vstr_regrev,
1008                                                       cis[i + 1]);
1009                                         break;
1010
1011                                 case HNBU_FEM:{
1012                                                 u16 fem =
1013                                                     (cis[i + 2] << 8) + cis[i +
1014                                                                             1];
1015                                                 varbuf_append(&b,
1016                                                               vstr_antswctl2g,
1017                                                               (fem &
1018                                                                SROM8_FEM_ANTSWLUT_MASK)
1019                                                               >>
1020                                                               SROM8_FEM_ANTSWLUT_SHIFT);
1021                                                 varbuf_append(&b, vstr_triso2g,
1022                                                               (fem &
1023                                                                SROM8_FEM_TR_ISO_MASK)
1024                                                               >>
1025                                                               SROM8_FEM_TR_ISO_SHIFT);
1026                                                 varbuf_append(&b,
1027                                                               vstr_pdetrange2g,
1028                                                               (fem &
1029                                                                SROM8_FEM_PDET_RANGE_MASK)
1030                                                               >>
1031                                                               SROM8_FEM_PDET_RANGE_SHIFT);
1032                                                 varbuf_append(&b,
1033                                                               vstr_extpagain2g,
1034                                                               (fem &
1035                                                                SROM8_FEM_EXTPA_GAIN_MASK)
1036                                                               >>
1037                                                               SROM8_FEM_EXTPA_GAIN_SHIFT);
1038                                                 varbuf_append(&b,
1039                                                               vstr_tssipos2g,
1040                                                               (fem &
1041                                                                SROM8_FEM_TSSIPOS_MASK)
1042                                                               >>
1043                                                               SROM8_FEM_TSSIPOS_SHIFT);
1044                                                 if (tlen < 5)
1045                                                         break;
1046
1047                                                 fem =
1048                                                     (cis[i + 4] << 8) + cis[i +
1049                                                                             3];
1050                                                 varbuf_append(&b,
1051                                                               vstr_antswctl5g,
1052                                                               (fem &
1053                                                                SROM8_FEM_ANTSWLUT_MASK)
1054                                                               >>
1055                                                               SROM8_FEM_ANTSWLUT_SHIFT);
1056                                                 varbuf_append(&b, vstr_triso5g,
1057                                                               (fem &
1058                                                                SROM8_FEM_TR_ISO_MASK)
1059                                                               >>
1060                                                               SROM8_FEM_TR_ISO_SHIFT);
1061                                                 varbuf_append(&b,
1062                                                               vstr_pdetrange5g,
1063                                                               (fem &
1064                                                                SROM8_FEM_PDET_RANGE_MASK)
1065                                                               >>
1066                                                               SROM8_FEM_PDET_RANGE_SHIFT);
1067                                                 varbuf_append(&b,
1068                                                               vstr_extpagain5g,
1069                                                               (fem &
1070                                                                SROM8_FEM_EXTPA_GAIN_MASK)
1071                                                               >>
1072                                                               SROM8_FEM_EXTPA_GAIN_SHIFT);
1073                                                 varbuf_append(&b,
1074                                                               vstr_tssipos5g,
1075                                                               (fem &
1076                                                                SROM8_FEM_TSSIPOS_MASK)
1077                                                               >>
1078                                                               SROM8_FEM_TSSIPOS_SHIFT);
1079                                                 break;
1080                                         }
1081
1082                                 case HNBU_PAPARMS_C0:
1083                                         varbuf_append(&b, vstr_maxp2ga0,
1084                                                       cis[i + 1]);
1085                                         varbuf_append(&b, vstr_itt2ga0,
1086                                                       cis[i + 2]);
1087                                         varbuf_append(&b, vstr_pa, 2, 0, 0,
1088                                                       (cis[i + 4] << 8) +
1089                                                       cis[i + 3]);
1090                                         varbuf_append(&b, vstr_pa, 2, 1, 0,
1091                                                       (cis[i + 6] << 8) +
1092                                                       cis[i + 5]);
1093                                         varbuf_append(&b, vstr_pa, 2, 2, 0,
1094                                                       (cis[i + 8] << 8) +
1095                                                       cis[i + 7]);
1096                                         if (tlen < 31)
1097                                                 break;
1098
1099                                         varbuf_append(&b, vstr_maxp5ga0,
1100                                                       cis[i + 9]);
1101                                         varbuf_append(&b, vstr_itt5ga0,
1102                                                       cis[i + 10]);
1103                                         varbuf_append(&b, vstr_maxp5gha0,
1104                                                       cis[i + 11]);
1105                                         varbuf_append(&b, vstr_maxp5gla0,
1106                                                       cis[i + 12]);
1107                                         varbuf_append(&b, vstr_pa, 5, 0, 0,
1108                                                       (cis[i + 14] << 8) +
1109                                                       cis[i + 13]);
1110                                         varbuf_append(&b, vstr_pa, 5, 1, 0,
1111                                                       (cis[i + 16] << 8) +
1112                                                       cis[i + 15]);
1113                                         varbuf_append(&b, vstr_pa, 5, 2, 0,
1114                                                       (cis[i + 18] << 8) +
1115                                                       cis[i + 17]);
1116                                         varbuf_append(&b, vstr_pahl, 5, 'l', 0,
1117                                                       0,
1118                                                       (cis[i + 20] << 8) +
1119                                                       cis[i + 19]);
1120                                         varbuf_append(&b, vstr_pahl, 5, 'l', 1,
1121                                                       0,
1122                                                       (cis[i + 22] << 8) +
1123                                                       cis[i + 21]);
1124                                         varbuf_append(&b, vstr_pahl, 5, 'l', 2,
1125                                                       0,
1126                                                       (cis[i + 24] << 8) +
1127                                                       cis[i + 23]);
1128                                         varbuf_append(&b, vstr_pahl, 5, 'h', 0,
1129                                                       0,
1130                                                       (cis[i + 26] << 8) +
1131                                                       cis[i + 25]);
1132                                         varbuf_append(&b, vstr_pahl, 5, 'h', 1,
1133                                                       0,
1134                                                       (cis[i + 28] << 8) +
1135                                                       cis[i + 27]);
1136                                         varbuf_append(&b, vstr_pahl, 5, 'h', 2,
1137                                                       0,
1138                                                       (cis[i + 30] << 8) +
1139                                                       cis[i + 29]);
1140                                         break;
1141
1142                                 case HNBU_PAPARMS_C1:
1143                                         varbuf_append(&b, vstr_maxp2ga1,
1144                                                       cis[i + 1]);
1145                                         varbuf_append(&b, vstr_itt2ga1,
1146                                                       cis[i + 2]);
1147                                         varbuf_append(&b, vstr_pa, 2, 0, 1,
1148                                                       (cis[i + 4] << 8) +
1149                                                       cis[i + 3]);
1150                                         varbuf_append(&b, vstr_pa, 2, 1, 1,
1151                                                       (cis[i + 6] << 8) +
1152                                                       cis[i + 5]);
1153                                         varbuf_append(&b, vstr_pa, 2, 2, 1,
1154                                                       (cis[i + 8] << 8) +
1155                                                       cis[i + 7]);
1156                                         if (tlen < 31)
1157                                                 break;
1158
1159                                         varbuf_append(&b, vstr_maxp5ga1,
1160                                                       cis[i + 9]);
1161                                         varbuf_append(&b, vstr_itt5ga1,
1162                                                       cis[i + 10]);
1163                                         varbuf_append(&b, vstr_maxp5gha1,
1164                                                       cis[i + 11]);
1165                                         varbuf_append(&b, vstr_maxp5gla1,
1166                                                       cis[i + 12]);
1167                                         varbuf_append(&b, vstr_pa, 5, 0, 1,
1168                                                       (cis[i + 14] << 8) +
1169                                                       cis[i + 13]);
1170                                         varbuf_append(&b, vstr_pa, 5, 1, 1,
1171                                                       (cis[i + 16] << 8) +
1172                                                       cis[i + 15]);
1173                                         varbuf_append(&b, vstr_pa, 5, 2, 1,
1174                                                       (cis[i + 18] << 8) +
1175                                                       cis[i + 17]);
1176                                         varbuf_append(&b, vstr_pahl, 5, 'l', 0,
1177                                                       1,
1178                                                       (cis[i + 20] << 8) +
1179                                                       cis[i + 19]);
1180                                         varbuf_append(&b, vstr_pahl, 5, 'l', 1,
1181                                                       1,
1182                                                       (cis[i + 22] << 8) +
1183                                                       cis[i + 21]);
1184                                         varbuf_append(&b, vstr_pahl, 5, 'l', 2,
1185                                                       1,
1186                                                       (cis[i + 24] << 8) +
1187                                                       cis[i + 23]);
1188                                         varbuf_append(&b, vstr_pahl, 5, 'h', 0,
1189                                                       1,
1190                                                       (cis[i + 26] << 8) +
1191                                                       cis[i + 25]);
1192                                         varbuf_append(&b, vstr_pahl, 5, 'h', 1,
1193                                                       1,
1194                                                       (cis[i + 28] << 8) +
1195                                                       cis[i + 27]);
1196                                         varbuf_append(&b, vstr_pahl, 5, 'h', 2,
1197                                                       1,
1198                                                       (cis[i + 30] << 8) +
1199                                                       cis[i + 29]);
1200                                         break;
1201
1202                                 case HNBU_PO_CCKOFDM:
1203                                         varbuf_append(&b, vstr_cck2gpo,
1204                                                       (cis[i + 2] << 8) +
1205                                                       cis[i + 1]);
1206                                         varbuf_append(&b, vstr_ofdm2gpo,
1207                                                       (cis[i + 6] << 24) +
1208                                                       (cis[i + 5] << 16) +
1209                                                       (cis[i + 4] << 8) +
1210                                                       cis[i + 3]);
1211                                         if (tlen < 19)
1212                                                 break;
1213
1214                                         varbuf_append(&b, vstr_ofdm5gpo,
1215                                                       (cis[i + 10] << 24) +
1216                                                       (cis[i + 9] << 16) +
1217                                                       (cis[i + 8] << 8) +
1218                                                       cis[i + 7]);
1219                                         varbuf_append(&b, vstr_ofdm5glpo,
1220                                                       (cis[i + 14] << 24) +
1221                                                       (cis[i + 13] << 16) +
1222                                                       (cis[i + 12] << 8) +
1223                                                       cis[i + 11]);
1224                                         varbuf_append(&b, vstr_ofdm5ghpo,
1225                                                       (cis[i + 18] << 24) +
1226                                                       (cis[i + 17] << 16) +
1227                                                       (cis[i + 16] << 8) +
1228                                                       cis[i + 15]);
1229                                         break;
1230
1231                                 case HNBU_PO_MCS2G:
1232                                         for (j = 0; j <= (tlen / 2); j++) {
1233                                                 varbuf_append(&b, vstr_mcspo, 2,
1234                                                               j,
1235                                                               (cis
1236                                                                [i + 2 +
1237                                                                 2 * j] << 8) +
1238                                                               cis[i + 1 +
1239                                                                   2 * j]);
1240                                         }
1241                                         break;
1242
1243                                 case HNBU_PO_MCS5GM:
1244                                         for (j = 0; j <= (tlen / 2); j++) {
1245                                                 varbuf_append(&b, vstr_mcspo, 5,
1246                                                               j,
1247                                                               (cis
1248                                                                [i + 2 +
1249                                                                 2 * j] << 8) +
1250                                                               cis[i + 1 +
1251                                                                   2 * j]);
1252                                         }
1253                                         break;
1254
1255                                 case HNBU_PO_MCS5GLH:
1256                                         for (j = 0; j <= (tlen / 4); j++) {
1257                                                 varbuf_append(&b, vstr_mcspohl,
1258                                                               5, 'l', j,
1259                                                               (cis
1260                                                                [i + 2 +
1261                                                                 2 * j] << 8) +
1262                                                               cis[i + 1 +
1263                                                                   2 * j]);
1264                                         }
1265
1266                                         for (j = 0; j <= (tlen / 4); j++) {
1267                                                 varbuf_append(&b, vstr_mcspohl,
1268                                                               5, 'h', j,
1269                                                               (cis
1270                                                                [i +
1271                                                                 ((tlen / 2) +
1272                                                                  2) +
1273                                                                 2 * j] << 8) +
1274                                                               cis[i +
1275                                                                   ((tlen / 2) +
1276                                                                    1) + 2 * j]);
1277                                         }
1278
1279                                         break;
1280
1281                                 case HNBU_PO_CDD:
1282                                         varbuf_append(&b, vstr_cddpo,
1283                                                       (cis[i + 2] << 8) +
1284                                                       cis[i + 1]);
1285                                         break;
1286
1287                                 case HNBU_PO_STBC:
1288                                         varbuf_append(&b, vstr_stbcpo,
1289                                                       (cis[i + 2] << 8) +
1290                                                       cis[i + 1]);
1291                                         break;
1292
1293                                 case HNBU_PO_40M:
1294                                         varbuf_append(&b, vstr_bw40po,
1295                                                       (cis[i + 2] << 8) +
1296                                                       cis[i + 1]);
1297                                         break;
1298
1299                                 case HNBU_PO_40MDUP:
1300                                         varbuf_append(&b, vstr_bwduppo,
1301                                                       (cis[i + 2] << 8) +
1302                                                       cis[i + 1]);
1303                                         break;
1304
1305                                 case HNBU_OFDMPO5G:
1306                                         varbuf_append(&b, vstr_ofdm5gpo,
1307                                                       (cis[i + 4] << 24) +
1308                                                       (cis[i + 3] << 16) +
1309                                                       (cis[i + 2] << 8) +
1310                                                       cis[i + 1]);
1311                                         varbuf_append(&b, vstr_ofdm5glpo,
1312                                                       (cis[i + 8] << 24) +
1313                                                       (cis[i + 7] << 16) +
1314                                                       (cis[i + 6] << 8) +
1315                                                       cis[i + 5]);
1316                                         varbuf_append(&b, vstr_ofdm5ghpo,
1317                                                       (cis[i + 12] << 24) +
1318                                                       (cis[i + 11] << 16) +
1319                                                       (cis[i + 10] << 8) +
1320                                                       cis[i + 9]);
1321                                         break;
1322
1323                                 case HNBU_CUSTOM1:
1324                                         varbuf_append(&b, vstr_custom, 1,
1325                                                       ((cis[i + 4] << 24) +
1326                                                        (cis[i + 3] << 16) +
1327                                                        (cis[i + 2] << 8) +
1328                                                        cis[i + 1]));
1329                                         break;
1330
1331 #if defined(BCMSDIO)
1332                                 case HNBU_SROM3SWRGN:
1333                                         if (tlen >= 73) {
1334                                                 u16 srom[35];
1335                                                 u8 srev = cis[i + 1 + 70];
1336                                                 ASSERT(srev == 3);
1337                                                 /* make tuple value 16-bit aligned and parse it */
1338                                                 bcopy(&cis[i + 1], srom,
1339                                                       sizeof(srom));
1340                                                 _initvars_srom_pci(srev, srom,
1341                                                                    SROM3_SWRGN_OFF,
1342                                                                    &b);
1343                                                 /* 2.4G antenna gain is included in SROM */
1344                                                 ag_init = true;
1345                                                 /* Ethernet MAC address is included in SROM */
1346                                                 eabuf[0] = 0;
1347                                                 boardnum = -1;
1348                                         }
1349                                         /* create extra variables */
1350                                         if (tlen >= 75)
1351                                                 varbuf_append(&b, vstr_vendid,
1352                                                               (cis[i + 1 + 73]
1353                                                                << 8) + cis[i +
1354                                                                            1 +
1355                                                                            72]);
1356                                         if (tlen >= 77)
1357                                                 varbuf_append(&b, vstr_devid,
1358                                                               (cis[i + 1 + 75]
1359                                                                << 8) + cis[i +
1360                                                                            1 +
1361                                                                            74]);
1362                                         if (tlen >= 79)
1363                                                 varbuf_append(&b, vstr_xtalfreq,
1364                                                               (cis[i + 1 + 77]
1365                                                                << 8) + cis[i +
1366                                                                            1 +
1367                                                                            76]);
1368                                         break;
1369 #endif                          /* defined(BCMSDIO) */
1370
1371                                 case HNBU_CCKFILTTYPE:
1372                                         varbuf_append(&b, vstr_cckdigfilttype,
1373                                                       (cis[i + 1]));
1374                                         break;
1375                                 }
1376
1377                                 break;
1378                         }
1379                         i += tlen;
1380                 } while (tup != CISTPL_END);
1381         }
1382
1383         if (boardnum != -1) {
1384                 varbuf_append(&b, vstr_boardnum, boardnum);
1385         }
1386
1387         if (eabuf[0]) {
1388                 varbuf_append(&b, vstr_macaddr, eabuf);
1389         }
1390
1391         /* if there is no antenna gain field, set default */
1392         if (getvar(NULL, "ag0") == NULL && ag_init == false) {
1393                 varbuf_append(&b, vstr_ag, 0, 0xff);
1394         }
1395
1396         /* final nullbyte terminator */
1397         ASSERT(b.size >= 1);
1398         *b.buf++ = '\0';
1399
1400         ASSERT(b.buf - base <= MAXSZ_NVRAM_VARS);
1401         err = initvars_table(osh, base, b.buf, vars, count);
1402
1403         kfree(base);
1404         return err;
1405 }
1406
1407 /* In chips with chipcommon rev 32 and later, the srom is in chipcommon,
1408  * not in the bus cores.
1409  */
1410 static u16
1411 srom_cc_cmd(si_t *sih, struct osl_info *osh, void *ccregs, u32 cmd,
1412             uint wordoff, u16 data)
1413 {
1414         chipcregs_t *cc = (chipcregs_t *) ccregs;
1415         uint wait_cnt = 1000;
1416
1417         if ((cmd == SRC_OP_READ) || (cmd == SRC_OP_WRITE)) {
1418                 W_REG(osh, &cc->sromaddress, wordoff * 2);
1419                 if (cmd == SRC_OP_WRITE)
1420                         W_REG(osh, &cc->sromdata, data);
1421         }
1422
1423         W_REG(osh, &cc->sromcontrol, SRC_START | cmd);
1424
1425         while (wait_cnt--) {
1426                 if ((R_REG(osh, &cc->sromcontrol) & SRC_BUSY) == 0)
1427                         break;
1428         }
1429
1430         if (!wait_cnt) {
1431                 BS_ERROR(("%s: Command 0x%x timed out\n", __func__, cmd));
1432                 return 0xffff;
1433         }
1434         if (cmd == SRC_OP_READ)
1435                 return (u16) R_REG(osh, &cc->sromdata);
1436         else
1437                 return 0xffff;
1438 }
1439
1440 /*
1441  * Read in and validate sprom.
1442  * Return 0 on success, nonzero on error.
1443  */
1444 static int
1445 sprom_read_pci(struct osl_info *osh, si_t *sih, u16 *sprom, uint wordoff,
1446                u16 *buf, uint nwords, bool check_crc)
1447 {
1448         int err = 0;
1449         uint i;
1450         void *ccregs = NULL;
1451
1452         /* read the sprom */
1453         for (i = 0; i < nwords; i++) {
1454
1455                 if (sih->ccrev > 31 && ISSIM_ENAB(sih)) {
1456                         /* use indirect since direct is too slow on QT */
1457                         if ((sih->cccaps & CC_CAP_SROM) == 0)
1458                                 return 1;
1459
1460                         ccregs = (void *)((u8 *) sprom - CC_SROM_OTP);
1461                         buf[i] =
1462                             srom_cc_cmd(sih, osh, ccregs, SRC_OP_READ,
1463                                         wordoff + i, 0);
1464
1465                 } else {
1466                         if (ISSIM_ENAB(sih))
1467                                 buf[i] = R_REG(osh, &sprom[wordoff + i]);
1468
1469                         buf[i] = R_REG(osh, &sprom[wordoff + i]);
1470                 }
1471
1472         }
1473
1474         /* bypass crc checking for simulation to allow srom hack */
1475         if (ISSIM_ENAB(sih))
1476                 return err;
1477
1478         if (check_crc) {
1479
1480                 if (buf[0] == 0xffff) {
1481                         /* The hardware thinks that an srom that starts with 0xffff
1482                          * is blank, regardless of the rest of the content, so declare
1483                          * it bad.
1484                          */
1485                         BS_ERROR(("%s: buf[0] = 0x%x, returning bad-crc\n",
1486                                   __func__, buf[0]));
1487                         return 1;
1488                 }
1489
1490                 /* fixup the endianness so crc8 will pass */
1491                 htol16_buf(buf, nwords * 2);
1492                 if (hndcrc8((u8 *) buf, nwords * 2, CRC8_INIT_VALUE) !=
1493                     CRC8_GOOD_VALUE) {
1494                         /* DBG only pci always read srom4 first, then srom8/9 */
1495                         /* BS_ERROR(("%s: bad crc\n", __func__)); */
1496                         err = 1;
1497                 }
1498                 /* now correct the endianness of the byte array */
1499                 ltoh16_buf(buf, nwords * 2);
1500         }
1501         return err;
1502 }
1503
1504 #if defined(BCMNVRAMR)
1505 static int otp_read_pci(struct osl_info *osh, si_t *sih, u16 *buf, uint bufsz)
1506 {
1507         u8 *otp;
1508         uint sz = OTP_SZ_MAX / 2;       /* size in words */
1509         int err = 0;
1510
1511         ASSERT(bufsz <= OTP_SZ_MAX);
1512
1513         otp = kzalloc(OTP_SZ_MAX, GFP_ATOMIC);
1514         if (otp == NULL) {
1515                 return BCME_ERROR;
1516         }
1517
1518         err = otp_read_region(sih, OTP_HW_RGN, (u16 *) otp, &sz);
1519
1520         bcopy(otp, buf, bufsz);
1521
1522         if (otp)
1523                 kfree(otp);
1524
1525         /* Check CRC */
1526         if (buf[0] == 0xffff) {
1527                 /* The hardware thinks that an srom that starts with 0xffff
1528                  * is blank, regardless of the rest of the content, so declare
1529                  * it bad.
1530                  */
1531                 BS_ERROR(("%s: buf[0] = 0x%x, returning bad-crc\n", __func__,
1532                           buf[0]));
1533                 return 1;
1534         }
1535
1536         /* fixup the endianness so crc8 will pass */
1537         htol16_buf(buf, bufsz);
1538         if (hndcrc8((u8 *) buf, SROM4_WORDS * 2, CRC8_INIT_VALUE) !=
1539             CRC8_GOOD_VALUE) {
1540                 BS_ERROR(("%s: bad crc\n", __func__));
1541                 err = 1;
1542         }
1543         /* now correct the endianness of the byte array */
1544         ltoh16_buf(buf, bufsz);
1545
1546         return err;
1547 }
1548 #endif                          /* defined(BCMNVRAMR) */
1549 /*
1550 * Create variable table from memory.
1551 * Return 0 on success, nonzero on error.
1552 */
1553 static int initvars_table(struct osl_info *osh, char *start, char *end,
1554                           char **vars, uint *count)
1555 {
1556         int c = (int)(end - start);
1557
1558         /* do it only when there is more than just the null string */
1559         if (c > 1) {
1560                 char *vp = kmalloc(c, GFP_ATOMIC);
1561                 ASSERT(vp != NULL);
1562                 if (!vp)
1563                         return BCME_NOMEM;
1564                 bcopy(start, vp, c);
1565                 *vars = vp;
1566                 *count = c;
1567         } else {
1568                 *vars = NULL;
1569                 *count = 0;
1570         }
1571
1572         return 0;
1573 }
1574
1575 /*
1576  * Find variables with <devpath> from flash. 'base' points to the beginning
1577  * of the table upon enter and to the end of the table upon exit when success.
1578  * Return 0 on success, nonzero on error.
1579  */
1580 static int initvars_flash(si_t *sih, struct osl_info *osh, char **base,
1581                           uint len)
1582 {
1583         char *vp = *base;
1584         char *flash;
1585         int err;
1586         char *s;
1587         uint l, dl, copy_len;
1588         char devpath[SI_DEVPATH_BUFSZ];
1589
1590         /* allocate memory and read in flash */
1591         flash = kmalloc(NVRAM_SPACE, GFP_ATOMIC);
1592         if (!flash)
1593                 return BCME_NOMEM;
1594         err = nvram_getall(flash, NVRAM_SPACE);
1595         if (err)
1596                 goto exit;
1597
1598         si_devpath(sih, devpath, sizeof(devpath));
1599
1600         /* grab vars with the <devpath> prefix in name */
1601         dl = strlen(devpath);
1602         for (s = flash; s && *s; s += l + 1) {
1603                 l = strlen(s);
1604
1605                 /* skip non-matching variable */
1606                 if (strncmp(s, devpath, dl))
1607                         continue;
1608
1609                 /* is there enough room to copy? */
1610                 copy_len = l - dl + 1;
1611                 if (len < copy_len) {
1612                         err = BCME_BUFTOOSHORT;
1613                         goto exit;
1614                 }
1615
1616                 /* no prefix, just the name=value */
1617                 strncpy(vp, &s[dl], copy_len);
1618                 vp += copy_len;
1619                 len -= copy_len;
1620         }
1621
1622         /* add null string as terminator */
1623         if (len < 1) {
1624                 err = BCME_BUFTOOSHORT;
1625                 goto exit;
1626         }
1627         *vp++ = '\0';
1628
1629         *base = vp;
1630
1631  exit:  kfree(flash);
1632         return err;
1633 }
1634
1635 /*
1636  * Initialize nonvolatile variable table from flash.
1637  * Return 0 on success, nonzero on error.
1638  */
1639 static int initvars_flash_si(si_t *sih, char **vars, uint *count)
1640 {
1641         struct osl_info *osh = si_osh(sih);
1642         char *vp, *base;
1643         int err;
1644
1645         ASSERT(vars != NULL);
1646         ASSERT(count != NULL);
1647
1648         base = vp = kmalloc(MAXSZ_NVRAM_VARS, GFP_ATOMIC);
1649         ASSERT(vp != NULL);
1650         if (!vp)
1651                 return BCME_NOMEM;
1652
1653         err = initvars_flash(sih, osh, &vp, MAXSZ_NVRAM_VARS);
1654         if (err == 0)
1655                 err = initvars_table(osh, base, vp, vars, count);
1656
1657         kfree(base);
1658
1659         return err;
1660 }
1661
1662 /* Parse SROM and create name=value pairs. 'srom' points to
1663  * the SROM word array. 'off' specifies the offset of the
1664  * first word 'srom' points to, which should be either 0 or
1665  * SROM3_SWRG_OFF (full SROM or software region).
1666  */
1667
1668 static uint mask_shift(u16 mask)
1669 {
1670         uint i;
1671         for (i = 0; i < (sizeof(mask) << 3); i++) {
1672                 if (mask & (1 << i))
1673                         return i;
1674         }
1675         ASSERT(mask);
1676         return 0;
1677 }
1678
1679 static uint mask_width(u16 mask)
1680 {
1681         int i;
1682         for (i = (sizeof(mask) << 3) - 1; i >= 0; i--) {
1683                 if (mask & (1 << i))
1684                         return (uint) (i - mask_shift(mask) + 1);
1685         }
1686         ASSERT(mask);
1687         return 0;
1688 }
1689
1690 #if defined(BCMDBG)
1691 static bool mask_valid(u16 mask)
1692 {
1693         uint shift = mask_shift(mask);
1694         uint width = mask_width(mask);
1695         return mask == ((~0 << shift) & ~(~0 << (shift + width)));
1696 }
1697 #endif                          /* BCMDBG */
1698
1699 static void _initvars_srom_pci(u8 sromrev, u16 *srom, uint off, varbuf_t *b)
1700 {
1701         u16 w;
1702         u32 val;
1703         const sromvar_t *srv;
1704         uint width;
1705         uint flags;
1706         u32 sr = (1 << sromrev);
1707
1708         varbuf_append(b, "sromrev=%d", sromrev);
1709
1710         for (srv = pci_sromvars; srv->name != NULL; srv++) {
1711                 const char *name;
1712
1713                 if ((srv->revmask & sr) == 0)
1714                         continue;
1715
1716                 if (srv->off < off)
1717                         continue;
1718
1719                 flags = srv->flags;
1720                 name = srv->name;
1721
1722                 /* This entry is for mfgc only. Don't generate param for it, */
1723                 if (flags & SRFL_NOVAR)
1724                         continue;
1725
1726                 if (flags & SRFL_ETHADDR) {
1727                         struct ether_addr ea;
1728
1729                         ea.octet[0] = (srom[srv->off - off] >> 8) & 0xff;
1730                         ea.octet[1] = srom[srv->off - off] & 0xff;
1731                         ea.octet[2] = (srom[srv->off + 1 - off] >> 8) & 0xff;
1732                         ea.octet[3] = srom[srv->off + 1 - off] & 0xff;
1733                         ea.octet[4] = (srom[srv->off + 2 - off] >> 8) & 0xff;
1734                         ea.octet[5] = srom[srv->off + 2 - off] & 0xff;
1735
1736                         varbuf_append(b, "%s=%pM", name, ea.octet);
1737                 } else {
1738                         ASSERT(mask_valid(srv->mask));
1739                         ASSERT(mask_width(srv->mask));
1740
1741                         w = srom[srv->off - off];
1742                         val = (w & srv->mask) >> mask_shift(srv->mask);
1743                         width = mask_width(srv->mask);
1744
1745                         while (srv->flags & SRFL_MORE) {
1746                                 srv++;
1747                                 ASSERT(srv->name != NULL);
1748
1749                                 if (srv->off == 0 || srv->off < off)
1750                                         continue;
1751
1752                                 ASSERT(mask_valid(srv->mask));
1753                                 ASSERT(mask_width(srv->mask));
1754
1755                                 w = srom[srv->off - off];
1756                                 val +=
1757                                     ((w & srv->mask) >> mask_shift(srv->
1758                                                                    mask)) <<
1759                                     width;
1760                                 width += mask_width(srv->mask);
1761                         }
1762
1763                         if ((flags & SRFL_NOFFS)
1764                             && ((int)val == (1 << width) - 1))
1765                                 continue;
1766
1767                         if (flags & SRFL_CCODE) {
1768                                 if (val == 0)
1769                                         varbuf_append(b, "ccode=");
1770                                 else
1771                                         varbuf_append(b, "ccode=%c%c",
1772                                                       (val >> 8), (val & 0xff));
1773                         }
1774                         /* LED Powersave duty cycle has to be scaled:
1775                          *(oncount >> 24) (offcount >> 8)
1776                          */
1777                         else if (flags & SRFL_LEDDC) {
1778                                 u32 w32 = (((val >> 8) & 0xff) << 24) | /* oncount */
1779                                     (((val & 0xff)) << 8);      /* offcount */
1780                                 varbuf_append(b, "leddc=%d", w32);
1781                         } else if (flags & SRFL_PRHEX)
1782                                 varbuf_append(b, "%s=0x%x", name, val);
1783                         else if ((flags & SRFL_PRSIGN)
1784                                  && (val & (1 << (width - 1))))
1785                                 varbuf_append(b, "%s=%d", name,
1786                                               (int)(val | (~0 << width)));
1787                         else
1788                                 varbuf_append(b, "%s=%u", name, val);
1789                 }
1790         }
1791
1792         if (sromrev >= 4) {
1793                 /* Do per-path variables */
1794                 uint p, pb, psz;
1795
1796                 if (sromrev >= 8) {
1797                         pb = SROM8_PATH0;
1798                         psz = SROM8_PATH1 - SROM8_PATH0;
1799                 } else {
1800                         pb = SROM4_PATH0;
1801                         psz = SROM4_PATH1 - SROM4_PATH0;
1802                 }
1803
1804                 for (p = 0; p < MAX_PATH_SROM; p++) {
1805                         for (srv = perpath_pci_sromvars; srv->name != NULL;
1806                              srv++) {
1807                                 if ((srv->revmask & sr) == 0)
1808                                         continue;
1809
1810                                 if (pb + srv->off < off)
1811                                         continue;
1812
1813                                 /* This entry is for mfgc only. Don't generate param for it, */
1814                                 if (srv->flags & SRFL_NOVAR)
1815                                         continue;
1816
1817                                 w = srom[pb + srv->off - off];
1818
1819                                 ASSERT(mask_valid(srv->mask));
1820                                 val = (w & srv->mask) >> mask_shift(srv->mask);
1821                                 width = mask_width(srv->mask);
1822
1823                                 /* Cheating: no per-path var is more than 1 word */
1824
1825                                 if ((srv->flags & SRFL_NOFFS)
1826                                     && ((int)val == (1 << width) - 1))
1827                                         continue;
1828
1829                                 if (srv->flags & SRFL_PRHEX)
1830                                         varbuf_append(b, "%s%d=0x%x", srv->name,
1831                                                       p, val);
1832                                 else
1833                                         varbuf_append(b, "%s%d=%d", srv->name,
1834                                                       p, val);
1835                         }
1836                         pb += psz;
1837                 }
1838         }
1839 }
1840
1841 /*
1842  * Initialize nonvolatile variable table from sprom.
1843  * Return 0 on success, nonzero on error.
1844  */
1845 static int initvars_srom_pci(si_t *sih, void *curmap, char **vars, uint *count)
1846 {
1847         u16 *srom, *sromwindow;
1848         u8 sromrev = 0;
1849         u32 sr;
1850         varbuf_t b;
1851         char *vp, *base = NULL;
1852         struct osl_info *osh = si_osh(sih);
1853         bool flash = false;
1854         int err = 0;
1855
1856         /*
1857          * Apply CRC over SROM content regardless SROM is present or not,
1858          * and use variable <devpath>sromrev's existance in flash to decide
1859          * if we should return an error when CRC fails or read SROM variables
1860          * from flash.
1861          */
1862         srom = kmalloc(SROM_MAX, GFP_ATOMIC);
1863         ASSERT(srom != NULL);
1864         if (!srom)
1865                 return -2;
1866
1867         sromwindow = (u16 *) SROM_OFFSET(sih);
1868         if (si_is_sprom_available(sih)) {
1869                 err =
1870                     sprom_read_pci(osh, sih, sromwindow, 0, srom, SROM_WORDS,
1871                                    true);
1872
1873                 if ((srom[SROM4_SIGN] == SROM4_SIGNATURE) ||
1874                     (((sih->buscoretype == PCIE_CORE_ID)
1875                       && (sih->buscorerev >= 6))
1876                      || ((sih->buscoretype == PCI_CORE_ID)
1877                          && (sih->buscorerev >= 0xe)))) {
1878                         /* sromrev >= 4, read more */
1879                         err =
1880                             sprom_read_pci(osh, sih, sromwindow, 0, srom,
1881                                            SROM4_WORDS, true);
1882                         sromrev = srom[SROM4_CRCREV] & 0xff;
1883                         if (err)
1884                                 BS_ERROR(("%s: srom %d, bad crc\n", __func__,
1885                                           sromrev));
1886
1887                 } else if (err == 0) {
1888                         /* srom is good and is rev < 4 */
1889                         /* top word of sprom contains version and crc8 */
1890                         sromrev = srom[SROM_CRCREV] & 0xff;
1891                         /* bcm4401 sroms misprogrammed */
1892                         if (sromrev == 0x10)
1893                                 sromrev = 1;
1894                 }
1895         }
1896 #if defined(BCMNVRAMR)
1897         /* Use OTP if SPROM not available */
1898         else if ((err = otp_read_pci(osh, sih, srom, SROM_MAX)) == 0) {
1899                 /* OTP only contain SROM rev8/rev9 for now */
1900                 sromrev = srom[SROM4_CRCREV] & 0xff;
1901         }
1902 #endif
1903         else {
1904                 err = 1;
1905                 BS_ERROR(("Neither SPROM nor OTP has valid image\n"));
1906         }
1907
1908         /* We want internal/wltest driver to come up with default sromvars so we can
1909          * program a blank SPROM/OTP.
1910          */
1911         if (err) {
1912                 char *value;
1913                 u32 val;
1914                 val = 0;
1915
1916                 value = si_getdevpathvar(sih, "sromrev");
1917                 if (value) {
1918                         sromrev = (u8) simple_strtoul(value, NULL, 0);
1919                         flash = true;
1920                         goto varscont;
1921                 }
1922
1923                 BS_ERROR(("%s, SROM CRC Error\n", __func__));
1924
1925                 value = si_getnvramflvar(sih, "sromrev");
1926                 if (value) {
1927                         err = 0;
1928                         goto errout;
1929                 }
1930
1931                 {
1932                         err = -1;
1933                         goto errout;
1934                 }
1935         }
1936
1937  varscont:
1938         /* Bitmask for the sromrev */
1939         sr = 1 << sromrev;
1940
1941         /* srom version check: Current valid versions: 1, 2, 3, 4, 5, 8, 9 */
1942         if ((sr & 0x33e) == 0) {
1943                 err = -2;
1944                 goto errout;
1945         }
1946
1947         ASSERT(vars != NULL);
1948         ASSERT(count != NULL);
1949
1950         base = vp = kmalloc(MAXSZ_NVRAM_VARS, GFP_ATOMIC);
1951         ASSERT(vp != NULL);
1952         if (!vp) {
1953                 err = -2;
1954                 goto errout;
1955         }
1956
1957         /* read variables from flash */
1958         if (flash) {
1959                 err = initvars_flash(sih, osh, &vp, MAXSZ_NVRAM_VARS);
1960                 if (err)
1961                         goto errout;
1962                 goto varsdone;
1963         }
1964
1965         varbuf_init(&b, base, MAXSZ_NVRAM_VARS);
1966
1967         /* parse SROM into name=value pairs. */
1968         _initvars_srom_pci(sromrev, srom, 0, &b);
1969
1970         /* final nullbyte terminator */
1971         ASSERT(b.size >= 1);
1972         vp = b.buf;
1973         *vp++ = '\0';
1974
1975         ASSERT((vp - base) <= MAXSZ_NVRAM_VARS);
1976
1977  varsdone:
1978         err = initvars_table(osh, base, vp, vars, count);
1979
1980  errout:
1981         if (base)
1982                 kfree(base);
1983
1984         kfree(srom);
1985         return err;
1986 }
1987
1988 #ifdef BCMSDIO
1989 /*
1990  * Read the SDIO cis and call parsecis to initialize the vars.
1991  * Return 0 on success, nonzero on error.
1992  */
1993 static int initvars_cis_sdio(struct osl_info *osh, char **vars, uint *count)
1994 {
1995         u8 *cis[SBSDIO_NUM_FUNCTION + 1];
1996         uint fn, numfn;
1997         int rc = 0;
1998
1999         numfn = bcmsdh_query_iofnum(NULL);
2000         ASSERT(numfn <= SDIOD_MAX_IOFUNCS);
2001
2002         for (fn = 0; fn <= numfn; fn++) {
2003                 cis[fn] = kzalloc(SBSDIO_CIS_SIZE_LIMIT, GFP_ATOMIC);
2004                 if (cis[fn] == NULL) {
2005                         rc = -1;
2006                         break;
2007                 }
2008
2009                 if (bcmsdh_cis_read(NULL, fn, cis[fn], SBSDIO_CIS_SIZE_LIMIT) !=
2010                     0) {
2011                         kfree(cis[fn]);
2012                         rc = -2;
2013                         break;
2014                 }
2015         }
2016
2017         if (!rc)
2018                 rc = srom_parsecis(osh, cis, fn, vars, count);
2019
2020         while (fn-- > 0)
2021                 kfree(cis[fn]);
2022
2023         return rc;
2024 }
2025
2026 /* set SDIO sprom command register */
2027 static int sprom_cmd_sdio(struct osl_info *osh, u8 cmd)
2028 {
2029         u8 status = 0;
2030         uint wait_cnt = 1000;
2031
2032         /* write sprom command register */
2033         bcmsdh_cfg_write(NULL, SDIO_FUNC_1, SBSDIO_SPROM_CS, cmd, NULL);
2034
2035         /* wait status */
2036         while (wait_cnt--) {
2037                 status =
2038                     bcmsdh_cfg_read(NULL, SDIO_FUNC_1, SBSDIO_SPROM_CS, NULL);
2039                 if (status & SBSDIO_SPROM_DONE)
2040                         return 0;
2041         }
2042
2043         return 1;
2044 }
2045
2046 /* read a word from the SDIO srom */
2047 static int sprom_read_sdio(struct osl_info *osh, u16 addr, u16 *data)
2048 {
2049         u8 addr_l, addr_h, data_l, data_h;
2050
2051         addr_l = (u8) ((addr * 2) & 0xff);
2052         addr_h = (u8) (((addr * 2) >> 8) & 0xff);
2053
2054         /* set address */
2055         bcmsdh_cfg_write(NULL, SDIO_FUNC_1, SBSDIO_SPROM_ADDR_HIGH, addr_h,
2056                          NULL);
2057         bcmsdh_cfg_write(NULL, SDIO_FUNC_1, SBSDIO_SPROM_ADDR_LOW, addr_l,
2058                          NULL);
2059
2060         /* do read */
2061         if (sprom_cmd_sdio(osh, SBSDIO_SPROM_READ))
2062                 return 1;
2063
2064         /* read data */
2065         data_h =
2066             bcmsdh_cfg_read(NULL, SDIO_FUNC_1, SBSDIO_SPROM_DATA_HIGH, NULL);
2067         data_l =
2068             bcmsdh_cfg_read(NULL, SDIO_FUNC_1, SBSDIO_SPROM_DATA_LOW, NULL);
2069
2070         *data = (data_h << 8) | data_l;
2071         return 0;
2072 }
2073 #endif                          /* BCMSDIO */
2074
2075 static int initvars_srom_si(si_t *sih, struct osl_info *osh, void *curmap,
2076                             char **vars, uint *varsz)
2077 {
2078         /* Search flash nvram section for srom variables */
2079         return initvars_flash_si(sih, vars, varsz);
2080 }