drivers/staging/brcm80211/util/linux_osl.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
  17 #include <typedefs.h>
  18 #include <bcmendian.h>
  19 #include <linuxver.h>
  20 #include <bcmdefs.h>
  21 #include <osl.h>
  22 #include <bcmutils.h>
  23 #include <linux/delay.h>
  24 #ifdef mips
  25 #include <asm/paccess.h>
  26 #endif                          /* mips */
  27 #include <pcicfg.h>
  28
  29 #include <linux/fs.h>
  30
  31 #define PCI_CFG_RETRY           10
  32
  33 #define OS_HANDLE_MAGIC         0x1234abcd      /* Magic # to recognise osh */
  34 #define BCM_MEM_FILENAME_LEN    24      /* Mem. filename length */
  35
  36 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
  37 #define MAX_STATIC_BUF_NUM 16
  38 #define STATIC_BUF_SIZE (PAGE_SIZE*2)
  39 #define STATIC_BUF_TOTAL_LEN (MAX_STATIC_BUF_NUM*STATIC_BUF_SIZE)
  40 typedef struct bcm_static_buf {
  41         struct semaphore static_sem;
  42         unsigned char *buf_ptr;
  43         unsigned char buf_use[MAX_STATIC_BUF_NUM];
  44 } bcm_static_buf_t;
  45
  46 static bcm_static_buf_t *bcm_static_buf = 0;
  47
  48 #define MAX_STATIC_PKT_NUM 8
  49 typedef struct bcm_static_pkt {
  50         struct sk_buff *skb_4k[MAX_STATIC_PKT_NUM];
  51         struct sk_buff *skb_8k[MAX_STATIC_PKT_NUM];
  52         struct semaphore osl_pkt_sem;
  53         unsigned char pkt_use[MAX_STATIC_PKT_NUM * 2];
  54 } bcm_static_pkt_t;
  55 static bcm_static_pkt_t *bcm_static_skb = 0;
  56 #endif                          /* DHD_USE_STATIC_BUF */
  57 typedef struct bcm_mem_link {
  58         struct bcm_mem_link *prev;
  59         struct bcm_mem_link *next;
  60         uint size;
  61         int line;
  62         char file[BCM_MEM_FILENAME_LEN];
  63 } bcm_mem_link_t;
  64
  65 struct osl_info {
  66         osl_pubinfo_t pub;
  67         uint magic;
  68         void *pdev;
  69         uint malloced;
  70         uint failed;
  71         uint bustype;
  72         bcm_mem_link_t *dbgmem_list;
  73 };
  74
  75 /* Global ASSERT type flag */
  76 u32 g_assert_type;
  77
  78 #ifdef BRCM_FULLMAC
  79 static s16 linuxbcmerrormap[] = { 0,    /* 0 */
  80         -EINVAL,                /* BCME_ERROR */
  81         -EINVAL,                /* BCME_BADARG */
  82         -EINVAL,                /* BCME_BADOPTION */
  83         -EINVAL,                /* BCME_NOTUP */
  84         -EINVAL,                /* BCME_NOTDOWN */
  85         -EINVAL,                /* BCME_NOTAP */
  86         -EINVAL,                /* BCME_NOTSTA */
  87         -EINVAL,                /* BCME_BADKEYIDX */
  88         -EINVAL,                /* BCME_RADIOOFF */
  89         -EINVAL,                /* BCME_NOTBANDLOCKED */
  90         -EINVAL,                /* BCME_NOCLK */
  91         -EINVAL,                /* BCME_BADRATESET */
  92         -EINVAL,                /* BCME_BADBAND */
  93         -E2BIG,                 /* BCME_BUFTOOSHORT */
  94         -E2BIG,                 /* BCME_BUFTOOLONG */
  95         -EBUSY,                 /* BCME_BUSY */
  96         -EINVAL,                /* BCME_NOTASSOCIATED */
  97         -EINVAL,                /* BCME_BADSSIDLEN */
  98         -EINVAL,                /* BCME_OUTOFRANGECHAN */
  99         -EINVAL,                /* BCME_BADCHAN */
 100         -EFAULT,                /* BCME_BADADDR */
 101         -ENOMEM,                /* BCME_NORESOURCE */
 102         -EOPNOTSUPP,            /* BCME_UNSUPPORTED */
 103         -EMSGSIZE,              /* BCME_BADLENGTH */
 104         -EINVAL,                /* BCME_NOTREADY */
 105         -EPERM,                 /* BCME_NOTPERMITTED */
 106         -ENOMEM,                /* BCME_NOMEM */
 107         -EINVAL,                /* BCME_ASSOCIATED */
 108         -ERANGE,                /* BCME_RANGE */
 109         -EINVAL,                /* BCME_NOTFOUND */
 110         -EINVAL,                /* BCME_WME_NOT_ENABLED */
 111         -EINVAL,                /* BCME_TSPEC_NOTFOUND */
 112         -EINVAL,                /* BCME_ACM_NOTSUPPORTED */
 113         -EINVAL,                /* BCME_NOT_WME_ASSOCIATION */
 114         -EIO,                   /* BCME_SDIO_ERROR */
 115         -ENODEV,                /* BCME_DONGLE_DOWN */
 116         -EINVAL,                /* BCME_VERSION */
 117         -EIO,                   /* BCME_TXFAIL */
 118         -EIO,                   /* BCME_RXFAIL */
 119         -EINVAL,                /* BCME_NODEVICE */
 120         -EINVAL,                /* BCME_NMODE_DISABLED */
 121         -ENODATA,               /* BCME_NONRESIDENT */
 122
 123 /* When an new error code is added to bcmutils.h, add os
 124  * spcecific error translation here as well
 125  */
 126 /* check if BCME_LAST changed since the last time this function was updated */
 127 #if BCME_LAST != -42
 128 #error "You need to add a OS error translation in the linuxbcmerrormap \
 129         for new error code defined in bcmutils.h"
 130 #endif
 131 };
 132
 133 /* translate bcmerrors into linux errors */
 134 int osl_error(int bcmerror)
 135 {
 136         if (bcmerror > 0)
 137                 bcmerror = 0;
 138         else if (bcmerror < BCME_LAST)
 139                 bcmerror = BCME_ERROR;
 140
 141         /* Array bounds covered by ASSERT in osl_attach */
 142         return linuxbcmerrormap[-bcmerror];
 143 }
 144 #endif /* BRCM_FULLMAC */
 145
 146 osl_t *osl_attach(void *pdev, uint bustype, bool pkttag)
 147 {
 148         osl_t *osh;
 149
 150         osh = kmalloc(sizeof(osl_t), GFP_ATOMIC);
 151         ASSERT(osh);
 152
 153         bzero(osh, sizeof(osl_t));
 154
 155 #ifdef BRCM_FULLMAC
 156         /* Check that error map has the right number of entries in it */
 157         ASSERT(ABS(BCME_LAST) == (ARRAY_SIZE(linuxbcmerrormap) - 1));
 158 #endif /* BRCM_FULLMAC */
 159
 160         osh->magic = OS_HANDLE_MAGIC;
 161         osh->malloced = 0;
 162         osh->failed = 0;
 163         osh->dbgmem_list = NULL;
 164         osh->pdev = pdev;
 165         osh->pub.pkttag = pkttag;
 166         osh->bustype = bustype;
 167
 168         switch (bustype) {
 169         case PCI_BUS:
 170         case SI_BUS:
 171         case PCMCIA_BUS:
 172                 osh->pub.mmbus = TRUE;
 173                 break;
 174         case JTAG_BUS:
 175         case SDIO_BUS:
 176         case USB_BUS:
 177         case SPI_BUS:
 178         case RPC_BUS:
 179                 osh->pub.mmbus = FALSE;
 180                 break;
 181         default:
 182                 ASSERT(FALSE);
 183                 break;
 184         }
 185
 186 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
 187         if (!bcm_static_buf) {
 188                 if (!(bcm_static_buf =
 189                      (bcm_static_buf_t *) dhd_os_prealloc(3,
 190                           STATIC_BUF_SIZE + STATIC_BUF_TOTAL_LEN))) {
 191                         printk(KERN_ERR "can not alloc static buf!\n");
 192                 } else
 193                         printk(KERN_ERR "alloc static buf at %x!\n",
 194                                (unsigned int)bcm_static_buf);
 195
 196                 init_MUTEX(&bcm_static_buf->static_sem);
 197
 198                 bcm_static_buf->buf_ptr =
 199                     (unsigned char *)bcm_static_buf + STATIC_BUF_SIZE;
 200
 201         }
 202
 203         if (!bcm_static_skb) {
 204                 int i;
 205                 void *skb_buff_ptr = 0;
 206                 bcm_static_skb =
 207                     (bcm_static_pkt_t *) ((char *)bcm_static_buf + 2048);
 208                 skb_buff_ptr = dhd_os_prealloc(4, 0);
 209
 210                 bcopy(skb_buff_ptr, bcm_static_skb,
 211                       sizeof(struct sk_buff *) * 16);
 212                 for (i = 0; i < MAX_STATIC_PKT_NUM * 2; i++)
 213                         bcm_static_skb->pkt_use[i] = 0;
 214
 215                 init_MUTEX(&bcm_static_skb->osl_pkt_sem);
 216         }
 217 #endif /* defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF) */
 218
 219 #if defined(BCMDBG) && !defined(BRCM_FULLMAC)
 220         if (pkttag) {
 221                 struct sk_buff *skb;
 222                 ASSERT(OSL_PKTTAG_SZ <= sizeof(skb->cb));
 223         }
 224 #endif
 225         return osh;
 226 }
 227
 228 void osl_detach(osl_t *osh)
 229 {
 230         if (osh == NULL)
 231                 return;
 232
 233 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
 234         if (bcm_static_buf)
 235                 bcm_static_buf = 0;
 236
 237         if (bcm_static_skb)
 238                 bcm_static_skb = 0;
 239 #endif
 240         ASSERT(osh->magic == OS_HANDLE_MAGIC);
 241         kfree(osh);
 242 }
 243
 244 /* Return a new packet. zero out pkttag */
 245 void *BCMFASTPATH osl_pktget(osl_t *osh, uint len)
 246 {
 247         struct sk_buff *skb;
 248
 249         skb = dev_alloc_skb(len);
 250         if (skb) {
 251                 skb_put(skb, len);
 252                 skb->priority = 0;
 253
 254                 osh->pub.pktalloced++;
 255         }
 256
 257         return (void *)skb;
 258 }
 259
 260 /* Free the driver packet. Free the tag if present */
 261 void BCMFASTPATH osl_pktfree(osl_t *osh, void *p, bool send)
 262 {
 263         struct sk_buff *skb, *nskb;
 264         int nest = 0;
 265
 266         skb = (struct sk_buff *)p;
 267         ASSERT(skb);
 268
 269         if (send && osh->pub.tx_fn)
 270                 osh->pub.tx_fn(osh->pub.tx_ctx, p, 0);
 271
 272         /* perversion: we use skb->next to chain multi-skb packets */
 273         while (skb) {
 274                 nskb = skb->next;
 275                 skb->next = NULL;
 276
 277                 if (skb->destructor)
 278                         /* cannot kfree_skb() on hard IRQ (net/core/skbuff.c) if
 279                          * destructor exists
 280                          */
 281                         dev_kfree_skb_any(skb);
 282                 else
 283                         /* can free immediately (even in_irq()) if destructor
 284                          * does not exist
 285                          */
 286                         dev_kfree_skb(skb);
 287
 288                 osh->pub.pktalloced--;
 289                 nest++;
 290                 skb = nskb;
 291         }
 292 }
 293
 294 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
 295 void *osl_pktget_static(osl_t *osh, uint len)
 296 {
 297         int i = 0;
 298         struct sk_buff *skb;
 299
 300         if (len > (PAGE_SIZE * 2)) {
 301                 printk(KERN_ERR "Do we really need this big skb??\n");
 302                 return osl_pktget(osh, len);
 303         }
 304
 305         down(&bcm_static_skb->osl_pkt_sem);
 306         if (len <= PAGE_SIZE) {
 307                 for (i = 0; i < MAX_STATIC_PKT_NUM; i++) {
 308                         if (bcm_static_skb->pkt_use[i] == 0)
 309                                 break;
 310                 }
 311
 312                 if (i != MAX_STATIC_PKT_NUM) {
 313                         bcm_static_skb->pkt_use[i] = 1;
 314                         up(&bcm_static_skb->osl_pkt_sem);
 315
 316                         skb = bcm_static_skb->skb_4k[i];
 317                         skb->tail = skb->data + len;
 318                         skb->len = len;
 319
 320                         return skb;
 321                 }
 322         }
 323
 324         for (i = 0; i < MAX_STATIC_PKT_NUM; i++) {
 325                 if (bcm_static_skb->pkt_use[i + MAX_STATIC_PKT_NUM] == 0)
 326                         break;
 327         }
 328
 329         if (i != MAX_STATIC_PKT_NUM) {
 330                 bcm_static_skb->pkt_use[i + MAX_STATIC_PKT_NUM] = 1;
 331                 up(&bcm_static_skb->osl_pkt_sem);
 332                 skb = bcm_static_skb->skb_8k[i];
 333                 skb->tail = skb->data + len;
 334                 skb->len = len;
 335
 336                 return skb;
 337         }
 338
 339         up(&bcm_static_skb->osl_pkt_sem);
 340         printk(KERN_ERR "all static pkt in use!\n");
 341         return osl_pktget(osh, len);
 342 }
 343
 344 void osl_pktfree_static(osl_t *osh, void *p, bool send)
 345 {
 346         int i;
 347
 348         for (i = 0; i < MAX_STATIC_PKT_NUM * 2; i++) {
 349                 if (p == bcm_static_skb->skb_4k[i]) {
 350                         down(&bcm_static_skb->osl_pkt_sem);
 351                         bcm_static_skb->pkt_use[i] = 0;
 352                         up(&bcm_static_skb->osl_pkt_sem);
 353
 354                         return;
 355                 }
 356         }
 357         return osl_pktfree(osh, p, send);
 358 }
 359 #endif /* defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF) */
 360
 361 u32 osl_pci_read_config(osl_t *osh, uint offset, uint size)
 362 {
 363         uint val = 0;
 364         uint retry = PCI_CFG_RETRY;
 365
 366         ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
 367
 368         /* only 4byte access supported */
 369         ASSERT(size == 4);
 370
 371         do {
 372                 pci_read_config_dword(osh->pdev, offset, &val);
 373                 if (val != 0xffffffff)
 374                         break;
 375         } while (retry--);
 376
 377 #ifdef BCMDBG
 378         if (retry < PCI_CFG_RETRY)
 379                 printk("PCI CONFIG READ access to %d required %d retries\n",
 380                        offset, (PCI_CFG_RETRY - retry));
 381 #endif                          /* BCMDBG */
 382
 383         return val;
 384 }
 385
 386 void osl_pci_write_config(osl_t *osh, uint offset, uint size, uint val)
 387 {
 388         uint retry = PCI_CFG_RETRY;
 389
 390         ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
 391
 392         /* only 4byte access supported */
 393         ASSERT(size == 4);
 394
 395         do {
 396                 pci_write_config_dword(osh->pdev, offset, val);
 397                 if (offset != PCI_BAR0_WIN)
 398                         break;
 399                 if (osl_pci_read_config(osh, offset, size) == val)
 400                         break;
 401         } while (retry--);
 402
 403 #if defined(BCMDBG) && !defined(BRCM_FULLMAC)
 404         if (retry < PCI_CFG_RETRY)
 405                 printk("PCI CONFIG WRITE access to %d required %d retries\n",
 406                        offset, (PCI_CFG_RETRY - retry));
 407 #endif                          /* BCMDBG */
 408 }
 409
 410 /* return bus # for the pci device pointed by osh->pdev */
 411 uint osl_pci_bus(osl_t *osh)
 412 {
 413         ASSERT(osh && (osh->magic == OS_HANDLE_MAGIC) && osh->pdev);
 414
 415         return ((struct pci_dev *)osh->pdev)->bus->number;
 416 }
 417
 418 /* return slot # for the pci device pointed by osh->pdev */
 419 uint osl_pci_slot(osl_t *osh)
 420 {
 421         ASSERT(osh && (osh->magic == OS_HANDLE_MAGIC) && osh->pdev);
 422
 423         return PCI_SLOT(((struct pci_dev *)osh->pdev)->devfn);
 424 }
 425
 426 void *osl_malloc(osl_t *osh, uint size)
 427 {
 428         void *addr;
 429
 430         /* only ASSERT if osh is defined */
 431         if (osh)
 432                 ASSERT(osh->magic == OS_HANDLE_MAGIC);
 433
 434 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
 435                 if (bcm_static_buf) {
 436                         int i = 0;
 437                         if ((size >= PAGE_SIZE) && (size <= STATIC_BUF_SIZE)) {
 438                                 down(&bcm_static_buf->static_sem);
 439                                 for (i = 0; i < MAX_STATIC_BUF_NUM; i++) {
 440                                         if (bcm_static_buf->buf_use[i] == 0)
 441                                                 break;
 442                                 }
 443                                 if (i == MAX_STATIC_BUF_NUM) {
 444                                         up(&bcm_static_buf->static_sem);
 445                                         printk(KERN_ERR "all static buff in use!\n");
 446                                         goto original;
 447                                 }
 448                                 bcm_static_buf->buf_use[i] = 1;
 449                                 up(&bcm_static_buf->static_sem);
 450
 451                                 bzero(bcm_static_buf->buf_ptr + STATIC_BUF_SIZE * i,
 452                                           size);
 453                                 if (osh)
 454                                         osh->malloced += size;
 455
 456                                 return (void *)(bcm_static_buf->buf_ptr +
 457                                                  STATIC_BUF_SIZE * i);
 458                         }
 459                 }
 460         original:
 461 #endif /* defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF) */
 462
 463         addr = kmalloc(size, GFP_ATOMIC);
 464         if (addr == NULL) {
 465                 if (osh)
 466                         osh->failed++;
 467                 return NULL;
 468         }
 469         if (osh)
 470                 osh->malloced += size;
 471
 472         return addr;
 473 }
 474
 475 void osl_mfree(osl_t *osh, void *addr, uint size)
 476 {
 477 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
 478         if (bcm_static_buf) {
 479                 if ((addr > (void *)bcm_static_buf) && ((unsigned char *)addr
 480                                 <= ((unsigned char *)
 481                                     bcm_static_buf +
 482                                     STATIC_BUF_TOTAL_LEN))) {
 483                         int buf_idx = 0;
 484                         buf_idx =
 485                             ((unsigned char *)addr -
 486                              bcm_static_buf->buf_ptr) / STATIC_BUF_SIZE;
 487                         down(&bcm_static_buf->static_sem);
 488                         bcm_static_buf->buf_use[buf_idx] = 0;
 489                         up(&bcm_static_buf->static_sem);
 490
 491                         if (osh) {
 492                                 ASSERT(osh->magic == OS_HANDLE_MAGIC);
 493                                 osh->malloced -= size;
 494                         }
 495                         return;
 496                 }
 497         }
 498 #endif /* defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF) */
 499         if (osh) {
 500                 ASSERT(osh->magic == OS_HANDLE_MAGIC);
 501                 osh->malloced -= size;
 502         }
 503         kfree(addr);
 504 }
 505
 506 uint osl_malloced(osl_t *osh)
 507 {
 508         ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
 509         return osh->malloced;
 510 }
 511
 512 uint osl_dma_consistent_align(void)
 513 {
 514         return PAGE_SIZE;
 515 }
 516
 517 #ifdef BRCM_FULLMAC
 518 void *osl_dma_alloc_consistent(osl_t *osh, uint size, unsigned long *pap)
 519 {
 520         ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
 521
 522         return pci_alloc_consistent(osh->pdev, size, (dma_addr_t *) pap);
 523 }
 524 #else /* !BRCM_FULLMAC */
 525 void *osl_dma_alloc_consistent(osl_t *osh, uint size, u16 align_bits,
 526                                uint *alloced, unsigned long *pap)
 527 {
 528         u16 align = (1 << align_bits);
 529         ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
 530
 531         if (!ISALIGNED(DMA_CONSISTENT_ALIGN, align))
 532                 size += align;
 533         *alloced = size;
 534
 535         return pci_alloc_consistent(osh->pdev, size, (dma_addr_t *) pap);
 536 }
 537 #endif /* BRCM_FULLMAC */
 538
 539 void osl_dma_free_consistent(osl_t *osh, void *va, uint size, unsigned long pa)
 540 {
 541         ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
 542
 543         pci_free_consistent(osh->pdev, size, va, (dma_addr_t) pa);
 544 }
 545
 546 uint BCMFASTPATH osl_dma_map(osl_t *osh, void *va, uint size, int direction)
 547 {
 548         int dir;
 549
 550         ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
 551         dir = (direction == DMA_TX) ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
 552         return pci_map_single(osh->pdev, va, size, dir);
 553 }
 554
 555 void BCMFASTPATH osl_dma_unmap(osl_t *osh, uint pa, uint size, int direction)
 556 {
 557         int dir;
 558
 559         ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
 560         dir = (direction == DMA_TX) ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
 561         pci_unmap_single(osh->pdev, (u32) pa, size, dir);
 562 }
 563
 564 #if defined(BCMDBG_ASSERT)
 565 void osl_assert(char *exp, char *file, int line)
 566 {
 567         char tempbuf[256];
 568         char *basename;
 569
 570         basename = strrchr(file, '/');
 571         /* skip the '/' */
 572         if (basename)
 573                 basename++;
 574
 575         if (!basename)
 576                 basename = file;
 577
 578 #ifdef BCMDBG_ASSERT
 579         snprintf(tempbuf, 256,
 580                  "assertion \"%s\" failed: file \"%s\", line %d\n", exp,
 581                  basename, line);
 582
 583         /* Print assert message and give it time to be written to /var/log/messages */
 584         if (!in_interrupt()) {
 585                 const int delay = 3;
 586                 printk(KERN_ERR "%s", tempbuf);
 587                 printk(KERN_ERR "panic in %d seconds\n", delay);
 588                 set_current_state(TASK_INTERRUPTIBLE);
 589                 schedule_timeout(delay * HZ);
 590         }
 591
 592         switch (g_assert_type) {
 593         case 0:
 594                 panic(KERN_ERR "%s", tempbuf);
 595                 break;
 596         case 1:
 597                 printk(KERN_ERR "%s", tempbuf);
 598                 BUG();
 599                 break;
 600         case 2:
 601                 printk(KERN_ERR "%s", tempbuf);
 602                 break;
 603         default:
 604                 break;
 605         }
 606 #endif                          /* BCMDBG_ASSERT */
 607
 608 }
 609 #endif                          /* defined(BCMDBG_ASSERT) */
 610
 611 void osl_delay(uint usec)
 612 {
 613         uint d;
 614
 615         while (usec > 0) {
 616                 d = min(usec, (uint)1000);
 617                 udelay(d);
 618                 usec -= d;
 619         }
 620 }
 621
 622 #if defined(BCMSDIO) && !defined(BRCM_FULLMAC)
 623 u8 osl_readb(osl_t *osh, volatile u8 *r)
 624 {
 625         osl_rreg_fn_t rreg = ((osl_pubinfo_t *) osh)->rreg_fn;
 626         void *ctx = ((osl_pubinfo_t *) osh)->reg_ctx;
 627
 628         return (u8) ((rreg) (ctx, (void *)r, sizeof(u8)));
 629 }
 630
 631 u16 osl_readw(osl_t *osh, volatile u16 *r)
 632 {
 633         osl_rreg_fn_t rreg = ((osl_pubinfo_t *) osh)->rreg_fn;
 634         void *ctx = ((osl_pubinfo_t *) osh)->reg_ctx;
 635
 636         return (u16) ((rreg) (ctx, (void *)r, sizeof(u16)));
 637 }
 638
 639 u32 osl_readl(osl_t *osh, volatile u32 *r)
 640 {
 641         osl_rreg_fn_t rreg = ((osl_pubinfo_t *) osh)->rreg_fn;
 642         void *ctx = ((osl_pubinfo_t *) osh)->reg_ctx;
 643
 644         return (u32) ((rreg) (ctx, (void *)r, sizeof(u32)));
 645 }
 646
 647 void osl_writeb(osl_t *osh, volatile u8 *r, u8 v)
 648 {
 649         osl_wreg_fn_t wreg = ((osl_pubinfo_t *) osh)->wreg_fn;
 650         void *ctx = ((osl_pubinfo_t *) osh)->reg_ctx;
 651
 652         ((wreg) (ctx, (void *)r, v, sizeof(u8)));
 653 }
 654
 655 void osl_writew(osl_t *osh, volatile u16 *r, u16 v)
 656 {
 657         osl_wreg_fn_t wreg = ((osl_pubinfo_t *) osh)->wreg_fn;
 658         void *ctx = ((osl_pubinfo_t *) osh)->reg_ctx;
 659
 660         ((wreg) (ctx, (void *)r, v, sizeof(u16)));
 661 }
 662
 663 void osl_writel(osl_t *osh, volatile u32 *r, u32 v)
 664 {
 665         osl_wreg_fn_t wreg = ((osl_pubinfo_t *) osh)->wreg_fn;
 666         void *ctx = ((osl_pubinfo_t *) osh)->reg_ctx;
 667
 668         ((wreg) (ctx, (void *)r, v, sizeof(u32)));
 669 }
 670 #endif  /* BCMSDIO */