mirror of https://github.com/hak5/openwrt.git
259 lines
7.4 KiB
C
259 lines
7.4 KiB
C
/*
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* Misc useful os-independent macros and functions.
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*
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* Copyright 2006, Broadcom Corporation
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* All Rights Reserved.
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*
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* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
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* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
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* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
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* $Id$
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*/
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#ifndef _bcmutils_h_
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#define _bcmutils_h_
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/* ** driver/apps-shared section ** */
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#define BCME_STRLEN 64 /* Max string length for BCM errors */
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#define VALID_BCMERROR(e) ((e <= 0) && (e >= BCME_LAST))
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/*
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* error codes could be added but the defined ones shouldn't be changed/deleted
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* these error codes are exposed to the user code
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* when ever a new error code is added to this list
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* please update errorstring table with the related error string and
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* update osl files with os specific errorcode map
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*/
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#define BCME_OK 0 /* Success */
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#define BCME_ERROR -1 /* Error generic */
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#define BCME_BADARG -2 /* Bad Argument */
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#define BCME_BADOPTION -3 /* Bad option */
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#define BCME_NOTUP -4 /* Not up */
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#define BCME_NOTDOWN -5 /* Not down */
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#define BCME_NOTAP -6 /* Not AP */
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#define BCME_NOTSTA -7 /* Not STA */
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#define BCME_BADKEYIDX -8 /* BAD Key Index */
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#define BCME_RADIOOFF -9 /* Radio Off */
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#define BCME_NOTBANDLOCKED -10 /* Not band locked */
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#define BCME_NOCLK -11 /* No Clock */
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#define BCME_BADRATESET -12 /* BAD Rate valueset */
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#define BCME_BADBAND -13 /* BAD Band */
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#define BCME_BUFTOOSHORT -14 /* Buffer too short */
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#define BCME_BUFTOOLONG -15 /* Buffer too long */
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#define BCME_BUSY -16 /* Busy */
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#define BCME_NOTASSOCIATED -17 /* Not Associated */
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#define BCME_BADSSIDLEN -18 /* Bad SSID len */
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#define BCME_OUTOFRANGECHAN -19 /* Out of Range Channel */
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#define BCME_BADCHAN -20 /* Bad Channel */
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#define BCME_BADADDR -21 /* Bad Address */
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#define BCME_NORESOURCE -22 /* Not Enough Resources */
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#define BCME_UNSUPPORTED -23 /* Unsupported */
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#define BCME_BADLEN -24 /* Bad length */
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#define BCME_NOTREADY -25 /* Not Ready */
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#define BCME_EPERM -26 /* Not Permitted */
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#define BCME_NOMEM -27 /* No Memory */
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#define BCME_ASSOCIATED -28 /* Associated */
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#define BCME_RANGE -29 /* Not In Range */
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#define BCME_NOTFOUND -30 /* Not Found */
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#define BCME_WME_NOT_ENABLED -31 /* WME Not Enabled */
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#define BCME_TSPEC_NOTFOUND -32 /* TSPEC Not Found */
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#define BCME_ACM_NOTSUPPORTED -33 /* ACM Not Supported */
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#define BCME_NOT_WME_ASSOCIATION -34 /* Not WME Association */
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#define BCME_SDIO_ERROR -35 /* SDIO Bus Error */
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#define BCME_DONGLE_DOWN -36 /* Dongle Not Accessible */
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#define BCME_LAST BCME_DONGLE_DOWN
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/* These are collection of BCME Error strings */
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#define BCMERRSTRINGTABLE { \
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"OK", \
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"Undefined error", \
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"Bad Argument", \
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"Bad Option", \
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"Not up", \
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"Not down", \
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"Not AP", \
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"Not STA", \
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"Bad Key Index", \
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"Radio Off", \
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"Not band locked", \
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"No clock", \
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"Bad Rate valueset", \
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"Bad Band", \
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"Buffer too short", \
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"Buffer too long", \
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"Busy", \
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"Not Associated", \
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"Bad SSID len", \
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"Out of Range Channel", \
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"Bad Channel", \
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"Bad Address", \
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"Not Enough Resources", \
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"Unsupported", \
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"Bad length", \
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"Not Ready", \
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"Not Permitted", \
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"No Memory", \
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"Associated", \
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"Not In Range", \
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"Not Found", \
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"WME Not Enabled", \
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"TSPEC Not Found", \
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"ACM Not Supported", \
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"Not WME Association", \
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"SDIO Bus Error", \
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"Dongle Not Accessible" \
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}
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#ifndef ABS
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#define ABS(a) (((a) < 0)?-(a):(a))
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#endif /* ABS */
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#ifndef MIN
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#define MIN(a, b) (((a) < (b))?(a):(b))
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#endif /* MIN */
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#ifndef MAX
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#define MAX(a, b) (((a) > (b))?(a):(b))
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#endif /* MAX */
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#define CEIL(x, y) (((x) + ((y)-1)) / (y))
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#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
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#define ISALIGNED(a, x) (((a) & ((x)-1)) == 0)
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#define ISPOWEROF2(x) ((((x)-1)&(x)) == 0)
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#define VALID_MASK(mask) !((mask) & ((mask) + 1))
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#define OFFSETOF(type, member) ((uint)(uintptr)&((type *)0)->member)
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#define ARRAYSIZE(a) (sizeof(a)/sizeof(a[0]))
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/* bit map related macros */
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#ifndef setbit
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#ifndef NBBY /* the BSD family defines NBBY */
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#define NBBY 8 /* 8 bits per byte */
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#endif /* #ifndef NBBY */
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#define setbit(a, i) (((uint8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY))
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#define clrbit(a, i) (((uint8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
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#define isset(a, i) (((uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY)))
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#define isclr(a, i) ((((uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
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#endif /* setbit */
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#define NBITS(type) (sizeof(type) * 8)
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#define NBITVAL(nbits) (1 << (nbits))
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#define MAXBITVAL(nbits) ((1 << (nbits)) - 1)
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#define NBITMASK(nbits) MAXBITVAL(nbits)
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#define MAXNBVAL(nbyte) MAXBITVAL((nbyte) * 8)
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/* basic mux operation - can be optimized on several architectures */
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#define MUX(pred, true, false) ((pred) ? (true) : (false))
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/* modulo inc/dec - assumes x E [0, bound - 1] */
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#define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1)
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#define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1)
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/* modulo inc/dec, bound = 2^k */
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#define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1))
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#define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1))
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/* modulo add/sub - assumes x, y E [0, bound - 1] */
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#define MODADD(x, y, bound) \
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MUX((x) + (y) >= (bound), (x) + (y) - (bound), (x) + (y))
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#define MODSUB(x, y, bound) \
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MUX(((int)(x)) - ((int)(y)) < 0, (x) - (y) + (bound), (x) - (y))
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/* module add/sub, bound = 2^k */
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#define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1))
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#define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1))
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/* crc defines */
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#define CRC8_INIT_VALUE 0xff /* Initial CRC8 checksum value */
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#define CRC8_GOOD_VALUE 0x9f /* Good final CRC8 checksum value */
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#define CRC16_INIT_VALUE 0xffff /* Initial CRC16 checksum value */
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#define CRC16_GOOD_VALUE 0xf0b8 /* Good final CRC16 checksum value */
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#define CRC32_INIT_VALUE 0xffffffff /* Initial CRC32 checksum value */
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#define CRC32_GOOD_VALUE 0xdebb20e3 /* Good final CRC32 checksum value */
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/* bcm_format_flags() bit description structure */
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typedef struct bcm_bit_desc {
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uint32 bit;
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char* name;
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} bcm_bit_desc_t;
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/* tag_ID/length/value_buffer tuple */
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typedef struct bcm_tlv {
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uint8 id;
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uint8 len;
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uint8 data[1];
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} bcm_tlv_t;
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/* Check that bcm_tlv_t fits into the given buflen */
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#define bcm_valid_tlv(elt, buflen) ((buflen) >= 2 && (int)(buflen) >= (int)(2 + (elt)->len))
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/* buffer length for ethernet address from bcm_ether_ntoa() */
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#define ETHER_ADDR_STR_LEN 18 /* 18-bytes of Ethernet address buffer length */
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/* unaligned load and store macros */
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#ifdef IL_BIGENDIAN
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static INLINE uint32
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load32_ua(uint8 *a)
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{
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return ((a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3]);
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}
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static INLINE void
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store32_ua(uint8 *a, uint32 v)
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{
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a[0] = (v >> 24) & 0xff;
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a[1] = (v >> 16) & 0xff;
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a[2] = (v >> 8) & 0xff;
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a[3] = v & 0xff;
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}
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static INLINE uint16
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load16_ua(uint8 *a)
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{
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return ((a[0] << 8) | a[1]);
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}
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static INLINE void
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store16_ua(uint8 *a, uint16 v)
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{
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a[0] = (v >> 8) & 0xff;
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a[1] = v & 0xff;
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}
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#else
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static INLINE uint32
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load32_ua(uint8 *a)
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{
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return ((a[3] << 24) | (a[2] << 16) | (a[1] << 8) | a[0]);
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}
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static INLINE void
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store32_ua(uint8 *a, uint32 v)
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{
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a[3] = (v >> 24) & 0xff;
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a[2] = (v >> 16) & 0xff;
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a[1] = (v >> 8) & 0xff;
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a[0] = v & 0xff;
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}
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static INLINE uint16
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load16_ua(uint8 *a)
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{
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return ((a[1] << 8) | a[0]);
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}
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static INLINE void
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store16_ua(uint8 *a, uint16 v)
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{
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a[1] = (v >> 8) & 0xff;
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a[0] = v & 0xff;
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}
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#endif /* IL_BIGENDIAN */
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#endif /* _bcmutils_h_ */
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