package/broadcom-wl/src/wlc/include/bcmutils.h

   1 /*
   2  * Misc useful os-independent macros and functions.
   3  *
   4  * Copyright 2006, Broadcom Corporation
   5  * All Rights Reserved.
   6  *
   7  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   8  * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
   9  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  10  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  11  * $Id: bcmutils.h,v 1.1.1.16 2006/04/08 06:13:39 honor Exp $
  12  */
  13
  14 #ifndef _bcmutils_h_
  15 #define _bcmutils_h_
  16
  17 /* ** driver/apps-shared section ** */
  18
  19 #define BCME_STRLEN             64      /* Max string length for BCM errors */
  20 #define VALID_BCMERROR(e)  ((e <= 0) && (e >= BCME_LAST))
  21
  22
  23 /*
  24  * error codes could be added but the defined ones shouldn't be changed/deleted
  25  * these error codes are exposed to the user code
  26  * when ever a new error code is added to this list
  27  * please update errorstring table with the related error string and
  28  * update osl files with os specific errorcode map
  29 */
  30
  31 #define BCME_OK                         0       /* Success */
  32 #define BCME_ERROR                      -1      /* Error generic */
  33 #define BCME_BADARG                     -2      /* Bad Argument */
  34 #define BCME_BADOPTION                  -3      /* Bad option */
  35 #define BCME_NOTUP                      -4      /* Not up */
  36 #define BCME_NOTDOWN                    -5      /* Not down */
  37 #define BCME_NOTAP                      -6      /* Not AP */
  38 #define BCME_NOTSTA                     -7      /* Not STA  */
  39 #define BCME_BADKEYIDX                  -8      /* BAD Key Index */
  40 #define BCME_RADIOOFF                   -9      /* Radio Off */
  41 #define BCME_NOTBANDLOCKED              -10     /* Not  band locked */
  42 #define BCME_NOCLK                      -11     /* No Clock */
  43 #define BCME_BADRATESET                 -12     /* BAD Rate valueset */
  44 #define BCME_BADBAND                    -13     /* BAD Band */
  45 #define BCME_BUFTOOSHORT                -14     /* Buffer too short */
  46 #define BCME_BUFTOOLONG                 -15     /* Buffer too long */
  47 #define BCME_BUSY                       -16     /* Busy */
  48 #define BCME_NOTASSOCIATED              -17     /* Not Associated */
  49 #define BCME_BADSSIDLEN                 -18     /* Bad SSID len */
  50 #define BCME_OUTOFRANGECHAN             -19     /* Out of Range Channel */
  51 #define BCME_BADCHAN                    -20     /* Bad Channel */
  52 #define BCME_BADADDR                    -21     /* Bad Address */
  53 #define BCME_NORESOURCE                 -22     /* Not Enough Resources */
  54 #define BCME_UNSUPPORTED                -23     /* Unsupported */
  55 #define BCME_BADLEN                     -24     /* Bad length */
  56 #define BCME_NOTREADY                   -25     /* Not Ready */
  57 #define BCME_EPERM                      -26     /* Not Permitted */
  58 #define BCME_NOMEM                      -27     /* No Memory */
  59 #define BCME_ASSOCIATED                 -28     /* Associated */
  60 #define BCME_RANGE                      -29     /* Not In Range */
  61 #define BCME_NOTFOUND                   -30     /* Not Found */
  62 #define BCME_WME_NOT_ENABLED            -31     /* WME Not Enabled */
  63 #define BCME_TSPEC_NOTFOUND             -32     /* TSPEC Not Found */
  64 #define BCME_ACM_NOTSUPPORTED           -33     /* ACM Not Supported */
  65 #define BCME_NOT_WME_ASSOCIATION        -34     /* Not WME Association */
  66 #define BCME_SDIO_ERROR                 -35     /* SDIO Bus Error */
  67 #define BCME_DONGLE_DOWN                -36     /* Dongle Not Accessible */
  68 #define BCME_LAST                       BCME_DONGLE_DOWN
  69
  70 /* These are collection of BCME Error strings */
  71 #define BCMERRSTRINGTABLE {             \
  72         "OK",                           \
  73         "Undefined error",              \
  74         "Bad Argument",                 \
  75         "Bad Option",                   \
  76         "Not up",                       \
  77         "Not down",                     \
  78         "Not AP",                       \
  79         "Not STA",                      \
  80         "Bad Key Index",                \
  81         "Radio Off",                    \
  82         "Not band locked",              \
  83         "No clock",                     \
  84         "Bad Rate valueset",            \
  85         "Bad Band",                     \
  86         "Buffer too short",             \
  87         "Buffer too long",              \
  88         "Busy",                         \
  89         "Not Associated",               \
  90         "Bad SSID len",                 \
  91         "Out of Range Channel",         \
  92         "Bad Channel",                  \
  93         "Bad Address",                  \
  94         "Not Enough Resources",         \
  95         "Unsupported",                  \
  96         "Bad length",                   \
  97         "Not Ready",                    \
  98         "Not Permitted",                \
  99         "No Memory",                    \
 100         "Associated",                   \
 101         "Not In Range",                 \
 102         "Not Found",                    \
 103         "WME Not Enabled",              \
 104         "TSPEC Not Found",              \
 105         "ACM Not Supported",            \
 106         "Not WME Association",          \
 107         "SDIO Bus Error",               \
 108         "Dongle Not Accessible"         \
 109 }
 110
 111 #ifndef ABS
 112 #define ABS(a)                  (((a) < 0)?-(a):(a))
 113 #endif /* ABS */
 114
 115 #ifndef MIN
 116 #define MIN(a, b)               (((a) < (b))?(a):(b))
 117 #endif /* MIN */
 118
 119 #ifndef MAX
 120 #define MAX(a, b)               (((a) > (b))?(a):(b))
 121 #endif /* MAX */
 122
 123 #define CEIL(x, y)              (((x) + ((y)-1)) / (y))
 124 #define ROUNDUP(x, y)           ((((x)+((y)-1))/(y))*(y))
 125 #define ISALIGNED(a, x)         (((a) & ((x)-1)) == 0)
 126 #define ISPOWEROF2(x)           ((((x)-1)&(x)) == 0)
 127 #define VALID_MASK(mask)        !((mask) & ((mask) + 1))
 128 #define OFFSETOF(type, member)  ((uint)(uintptr)&((type *)0)->member)
 129 #define ARRAYSIZE(a)            (sizeof(a)/sizeof(a[0]))
 130
 131 /* bit map related macros */
 132 #ifndef setbit
 133 #ifndef NBBY                /* the BSD family defines NBBY */
 134 #define NBBY    8       /* 8 bits per byte */
 135 #endif /* #ifndef NBBY */
 136 #define setbit(a, i)    (((uint8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY))
 137 #define clrbit(a, i)    (((uint8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
 138 #define isset(a, i)     (((uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY)))
 139 #define isclr(a, i)     ((((uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
 140 #endif /* setbit */
 141
 142 #define NBITS(type)     (sizeof(type) * 8)
 143 #define NBITVAL(nbits)  (1 << (nbits))
 144 #define MAXBITVAL(nbits)        ((1 << (nbits)) - 1)
 145 #define NBITMASK(nbits) MAXBITVAL(nbits)
 146 #define MAXNBVAL(nbyte) MAXBITVAL((nbyte) * 8)
 147
 148 /* basic mux operation - can be optimized on several architectures */
 149 #define MUX(pred, true, false) ((pred) ? (true) : (false))
 150
 151 /* modulo inc/dec - assumes x E [0, bound - 1] */
 152 #define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1)
 153 #define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1)
 154
 155 /* modulo inc/dec, bound = 2^k */
 156 #define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1))
 157 #define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1))
 158
 159 /* modulo add/sub - assumes x, y E [0, bound - 1] */
 160 #define MODADD(x, y, bound) \
 161     MUX((x) + (y) >= (bound), (x) + (y) - (bound), (x) + (y))
 162 #define MODSUB(x, y, bound) \
 163     MUX(((int)(x)) - ((int)(y)) < 0, (x) - (y) + (bound), (x) - (y))
 164
 165 /* module add/sub, bound = 2^k */
 166 #define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1))
 167 #define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1))
 168
 169 /* crc defines */
 170 #define CRC8_INIT_VALUE  0xff           /* Initial CRC8 checksum value */
 171 #define CRC8_GOOD_VALUE  0x9f           /* Good final CRC8 checksum value */
 172 #define CRC16_INIT_VALUE 0xffff         /* Initial CRC16 checksum value */
 173 #define CRC16_GOOD_VALUE 0xf0b8         /* Good final CRC16 checksum value */
 174 #define CRC32_INIT_VALUE 0xffffffff     /* Initial CRC32 checksum value */
 175 #define CRC32_GOOD_VALUE 0xdebb20e3     /* Good final CRC32 checksum value */
 176
 177 /* bcm_format_flags() bit description structure */
 178 typedef struct bcm_bit_desc {
 179         uint32  bit;
 180         char*   name;
 181 } bcm_bit_desc_t;
 182
 183 /* tag_ID/length/value_buffer tuple */
 184 typedef struct bcm_tlv {
 185         uint8   id;
 186         uint8   len;
 187         uint8   data[1];
 188 } bcm_tlv_t;
 189
 190 /* Check that bcm_tlv_t fits into the given buflen */
 191 #define bcm_valid_tlv(elt, buflen) ((buflen) >= 2 && (int)(buflen) >= (int)(2 + (elt)->len))
 192
 193 /* buffer length for ethernet address from bcm_ether_ntoa() */
 194 #define ETHER_ADDR_STR_LEN      18      /* 18-bytes of Ethernet address buffer length */
 195
 196 /* unaligned load and store macros */
 197 #ifdef IL_BIGENDIAN
 198 static INLINE uint32
 199 load32_ua(uint8 *a)
 200 {
 201         return ((a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3]);
 202 }
 203
 204 static INLINE void
 205 store32_ua(uint8 *a, uint32 v)
 206 {
 207         a[0] = (v >> 24) & 0xff;
 208         a[1] = (v >> 16) & 0xff;
 209         a[2] = (v >> 8) & 0xff;
 210         a[3] = v & 0xff;
 211 }
 212
 213 static INLINE uint16
 214 load16_ua(uint8 *a)
 215 {
 216         return ((a[0] << 8) | a[1]);
 217 }
 218
 219 static INLINE void
 220 store16_ua(uint8 *a, uint16 v)
 221 {
 222         a[0] = (v >> 8) & 0xff;
 223         a[1] = v & 0xff;
 224 }
 225
 226 #else
 227
 228 static INLINE uint32
 229 load32_ua(uint8 *a)
 230 {
 231         return ((a[3] << 24) | (a[2] << 16) | (a[1] << 8) | a[0]);
 232 }
 233
 234 static INLINE void
 235 store32_ua(uint8 *a, uint32 v)
 236 {
 237         a[3] = (v >> 24) & 0xff;
 238         a[2] = (v >> 16) & 0xff;
 239         a[1] = (v >> 8) & 0xff;
 240         a[0] = v & 0xff;
 241 }
 242
 243 static INLINE uint16
 244 load16_ua(uint8 *a)
 245 {
 246         return ((a[1] << 8) | a[0]);
 247 }
 248
 249 static INLINE void
 250 store16_ua(uint8 *a, uint16 v)
 251 {
 252         a[1] = (v >> 8) & 0xff;
 253         a[0] = v & 0xff;
 254 }
 255
 256 #endif /* IL_BIGENDIAN */
 257
 258 #endif  /* _bcmutils_h_ */