diff options
Diffstat (limited to 'openwrt/package/linux/kernel-source/drivers/net/hnd/bcmutils.c')
-rw-r--r-- | openwrt/package/linux/kernel-source/drivers/net/hnd/bcmutils.c | 803 |
1 files changed, 0 insertions, 803 deletions
diff --git a/openwrt/package/linux/kernel-source/drivers/net/hnd/bcmutils.c b/openwrt/package/linux/kernel-source/drivers/net/hnd/bcmutils.c deleted file mode 100644 index 1b37c511e..000000000 --- a/openwrt/package/linux/kernel-source/drivers/net/hnd/bcmutils.c +++ /dev/null @@ -1,803 +0,0 @@ -/* - * Misc useful OS-independent routines. - * - * Copyright 2004, Broadcom Corporation - * All Rights Reserved. - * - * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY - * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM - * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. - * $Id$ - */ - -#include <typedefs.h> -#include <osl.h> -#include <bcmutils.h> -#include <bcmendian.h> -#include <bcmnvram.h> - -unsigned char bcm_ctype[] = { - _BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C, /* 0-7 */ - _BCM_C,_BCM_C|_BCM_S,_BCM_C|_BCM_S,_BCM_C|_BCM_S,_BCM_C|_BCM_S,_BCM_C|_BCM_S,_BCM_C,_BCM_C, /* 8-15 */ - _BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C, /* 16-23 */ - _BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C,_BCM_C, /* 24-31 */ - _BCM_S|_BCM_SP,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P, /* 32-39 */ - _BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P, /* 40-47 */ - _BCM_D,_BCM_D,_BCM_D,_BCM_D,_BCM_D,_BCM_D,_BCM_D,_BCM_D, /* 48-55 */ - _BCM_D,_BCM_D,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P, /* 56-63 */ - _BCM_P,_BCM_U|_BCM_X,_BCM_U|_BCM_X,_BCM_U|_BCM_X,_BCM_U|_BCM_X,_BCM_U|_BCM_X,_BCM_U|_BCM_X,_BCM_U, /* 64-71 */ - _BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U, /* 72-79 */ - _BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U, /* 80-87 */ - _BCM_U,_BCM_U,_BCM_U,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P, /* 88-95 */ - _BCM_P,_BCM_L|_BCM_X,_BCM_L|_BCM_X,_BCM_L|_BCM_X,_BCM_L|_BCM_X,_BCM_L|_BCM_X,_BCM_L|_BCM_X,_BCM_L, /* 96-103 */ - _BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L, /* 104-111 */ - _BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L, /* 112-119 */ - _BCM_L,_BCM_L,_BCM_L,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_C, /* 120-127 */ - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 128-143 */ - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 144-159 */ - _BCM_S|_BCM_SP,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P, /* 160-175 */ - _BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P,_BCM_P, /* 176-191 */ - _BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U, /* 192-207 */ - _BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_P,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_U,_BCM_L, /* 208-223 */ - _BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L, /* 224-239 */ - _BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_P,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L,_BCM_L /* 240-255 */ -}; - -uchar -bcm_toupper(uchar c) -{ - if (bcm_islower(c)) - c -= 'a'-'A'; - return (c); -} - -ulong -bcm_strtoul(char *cp, char **endp, uint base) -{ - ulong result, value; - bool minus; - - minus = FALSE; - - while (bcm_isspace(*cp)) - cp++; - - if (cp[0] == '+') - cp++; - else if (cp[0] == '-') { - minus = TRUE; - cp++; - } - - if (base == 0) { - if (cp[0] == '0') { - if ((cp[1] == 'x') || (cp[1] == 'X')) { - base = 16; - cp = &cp[2]; - } else { - base = 8; - cp = &cp[1]; - } - } else - base = 10; - } else if (base == 16 && (cp[0] == '0') && ((cp[1] == 'x') || (cp[1] == 'X'))) { - cp = &cp[2]; - } - - result = 0; - - while (bcm_isxdigit(*cp) && - (value = bcm_isdigit(*cp) ? *cp-'0' : bcm_toupper(*cp)-'A'+10) < base) { - result = result*base + value; - cp++; - } - - if (minus) - result = (ulong)(result * -1); - - if (endp) - *endp = (char *)cp; - - return (result); -} - -uint -bcm_atoi(char *s) -{ - uint n; - - n = 0; - - while (bcm_isdigit(*s)) - n = (n * 10) + *s++ - '0'; - return (n); -} - -void -deadbeef(char *p, uint len) -{ - static uchar meat[] = { 0xde, 0xad, 0xbe, 0xef }; - - while (len-- > 0) { - *p = meat[((uint)p) & 3]; - p++; - } -} - -/* pretty hex print a contiguous buffer */ -void -prhex(char *msg, uchar *buf, uint nbytes) -{ - char line[256]; - char* p; - uint i; - - if (msg && (msg[0] != '\0')) - printf("%s: ", msg); - - p = line; - for (i = 0; i < nbytes; i++) { - if (i % 16 == 0) { - p += sprintf(p, "%04d: ", i); /* line prefix */ - } - p += sprintf(p, "%02x ", buf[i]); - if (i % 16 == 15) { - printf("%s\n", line); /* flush line */ - p = line; - } - } - - /* flush last partial line */ - if (p != line) - printf("%s\n", line); -} - -/* pretty hex print a pkt buffer chain */ -void -prpkt(char *msg, void *drv, void *p0) -{ - void *p; - - if (msg && (msg[0] != '\0')) - printf("%s: ", msg); - - for (p = p0; p; p = PKTNEXT(drv, p)) - prhex(NULL, PKTDATA(drv, p), PKTLEN(drv, p)); -} - -/* copy a pkt buffer chain into a buffer */ -uint -pktcopy(void *drv, void *p, uint offset, int len, uchar *buf) -{ - uint n, ret = 0; - - if (len < 0) - len = 4096; /* "infinite" */ - - /* skip 'offset' bytes */ - for (; p && offset; p = PKTNEXT(drv, p)) { - if (offset < (uint)PKTLEN(drv, p)) - break; - offset -= PKTLEN(drv, p); - } - - if (!p) - return 0; - - /* copy the data */ - for (; p && len; p = PKTNEXT(drv, p)) { - n = MIN((uint)PKTLEN(drv, p) - offset, (uint)len); - bcopy(PKTDATA(drv, p) + offset, buf, n); - buf += n; - len -= n; - ret += n; - offset = 0; - } - - return ret; -} - -/* return total length of buffer chain */ -uint -pkttotlen(void *drv, void *p) -{ - uint total; - - total = 0; - for (; p; p = PKTNEXT(drv, p)) - total += PKTLEN(drv, p); - return (total); -} - - -uchar* -bcm_ether_ntoa(char *ea, char *buf) -{ - sprintf(buf,"%02x:%02x:%02x:%02x:%02x:%02x", - (uchar)ea[0]&0xff, (uchar)ea[1]&0xff, (uchar)ea[2]&0xff, - (uchar)ea[3]&0xff, (uchar)ea[4]&0xff, (uchar)ea[5]&0xff); - return (buf); -} - -/* parse a xx:xx:xx:xx:xx:xx format ethernet address */ -int -bcm_ether_atoe(char *p, char *ea) -{ - int i = 0; - - for (;;) { - ea[i++] = (char) bcm_strtoul(p, &p, 16); - if (!*p++ || i == 6) - break; - } - - return (i == 6); -} - -/* - * Advance from the current 1-byte tag/1-byte length/variable-length value - * triple, to the next, returning a pointer to the next. - */ -bcm_tlv_t * -bcm_next_tlv(bcm_tlv_t *elt, int *buflen) -{ - int len; - - /* validate current elt */ - if (*buflen < 2) { - return NULL; - } - - len = elt->len; - - /* validate remaining buflen */ - if (*buflen >= (2 + len + 2)) { - elt = (bcm_tlv_t*)(elt->data + len); - *buflen -= (2 + len); - } else { - elt = NULL; - } - - return elt; -} - -/* - * Traverse a string of 1-byte tag/1-byte length/variable-length value - * triples, returning a pointer to the substring whose first element - * matches tag. Stop parsing when we see an element whose ID is greater - * than the target key. - */ -bcm_tlv_t * -bcm_parse_ordered_tlvs(void *buf, int buflen, uint key) -{ - bcm_tlv_t *elt; - int totlen; - - elt = (bcm_tlv_t*)buf; - totlen = buflen; - - /* find tagged parameter */ - while (totlen >= 2) { - uint id = elt->id; - int len = elt->len; - - /* Punt if we start seeing IDs > than target key */ - if (id > key) - return(NULL); - - /* validate remaining totlen */ - if ((id == key) && (totlen >= (len + 2))) - return (elt); - - elt = (bcm_tlv_t*)((uint8*)elt + (len + 2)); - totlen -= (len + 2); - } - return NULL; -} - - -/* - * Traverse a string of 1-byte tag/1-byte length/variable-length value - * triples, returning a pointer to the substring whose first element - * matches tag - */ -bcm_tlv_t * -bcm_parse_tlvs(void *buf, int buflen, uint key) -{ - bcm_tlv_t *elt; - int totlen; - - elt = (bcm_tlv_t*)buf; - totlen = buflen; - - /* find tagged parameter */ - while (totlen >= 2) { - int len = elt->len; - - /* validate remaining totlen */ - if ((elt->id == key) && (totlen >= (len + 2))) - return (elt); - - elt = (bcm_tlv_t*)((uint8*)elt + (len + 2)); - totlen -= (len + 2); - } - - return NULL; -} - -void -pktq_init(struct pktq *q, uint maxlen, bool priority) -{ - q->head = q->tail = NULL; - q->priority = priority; - q->maxlen = maxlen; - q->len = 0; -} - -bool -pktenq(struct pktq *q, void *p, bool lifo) -{ - void *next, *prev; - - /* Queue is full */ - if (q->len >= q->maxlen) - return FALSE; - - /* Queueing chains not allowed */ - ASSERT(PKTLINK(p) == NULL); - - /* Queue is empty */ - if (q->tail == NULL) { - ASSERT(q->head == NULL); - q->head = q->tail = p; - } - - /* Insert at head or tail */ - else if (q->priority == FALSE) { - /* Insert at head (LIFO) */ - if (lifo) { - PKTSETLINK(p, q->head); - q->head = p; - } - /* Insert at tail (FIFO) */ - else { - ASSERT(PKTLINK(q->tail) == NULL); - PKTSETLINK(q->tail, p); - PKTSETLINK(p, NULL); - q->tail = p; - } - } - - /* Insert by priority */ - else { - ASSERT(q->head); - ASSERT(q->tail); - /* Shortcut to insertion at tail */ - if (PKTPRIO(p) < PKTPRIO(q->tail) || - (!lifo && PKTPRIO(p) <= PKTPRIO(q->tail))) { - prev = q->tail; - next = NULL; - } - /* Insert at head or in the middle */ - else { - prev = NULL; - next = q->head; - } - /* Walk the queue */ - for (; next; prev = next, next = PKTLINK(next)) { - /* Priority queue invariant */ - ASSERT(!prev || PKTPRIO(prev) >= PKTPRIO(next)); - /* Insert at head of string of packets of same priority (LIFO) */ - if (lifo) { - if (PKTPRIO(p) >= PKTPRIO(next)) - break; - } - /* Insert at tail of string of packets of same priority (FIFO) */ - else { - if (PKTPRIO(p) > PKTPRIO(next)) - break; - } - } - /* Insert at tail */ - if (next == NULL) { - ASSERT(PKTLINK(q->tail) == NULL); - PKTSETLINK(q->tail, p); - PKTSETLINK(p, NULL); - q->tail = p; - } - /* Insert in the middle */ - else if (prev) { - PKTSETLINK(prev, p); - PKTSETLINK(p, next); - } - /* Insert at head */ - else { - PKTSETLINK(p, q->head); - q->head = p; - } - } - - /* List invariants after insertion */ - ASSERT(q->head); - ASSERT(PKTLINK(q->tail) == NULL); - - q->len++; - return TRUE; -} - -void* -pktdeq(struct pktq *q) -{ - void *p; - - if ((p = q->head)) { - ASSERT(q->tail); - q->head = PKTLINK(p); - PKTSETLINK(p, NULL); - q->len--; - if (q->head == NULL) - q->tail = NULL; - } - else { - ASSERT(q->tail == NULL); - } - - return (p); -} - -/******************************************************************************* - * crc8 - * - * Computes a crc8 over the input data using the polynomial: - * - * x^8 + x^7 +x^6 + x^4 + x^2 + 1 - * - * The caller provides the initial value (either CRC8_INIT_VALUE - * or the previous returned value) to allow for processing of - * discontiguous blocks of data. When generating the CRC the - * caller is responsible for complementing the final return value - * and inserting it into the byte stream. When checking, a final - * return value of CRC8_GOOD_VALUE indicates a valid CRC. - * - * Reference: Dallas Semiconductor Application Note 27 - * Williams, Ross N., "A Painless Guide to CRC Error Detection Algorithms", - * ver 3, Aug 1993, ross@guest.adelaide.edu.au, Rocksoft Pty Ltd., - * ftp://ftp.rocksoft.com/clients/rocksoft/papers/crc_v3.txt - * - ******************************************************************************/ - -static uint8 crc8_table[256] = { - 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, - 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, - 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, - 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, - 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, - 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, - 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, - 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, - 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, - 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, - 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, - 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, - 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, - 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, - 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, - 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, - 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, - 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, - 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, - 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, - 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, - 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, - 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, - 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, - 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, - 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, - 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, - 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, - 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, - 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, - 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, - 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F -}; - -/* - * Search the name=value vars for a specific one and return its value. - * Returns NULL if not found. - */ -char* -getvar(char *vars, char *name) -{ - char *s; - int len; - - len = strlen(name); - - /* first look in vars[] */ - for (s = vars; s && *s; ) { - if ((bcmp(s, name, len) == 0) && (s[len] == '=')) - return (&s[len+1]); - - while (*s++) - ; - } - - /* then query nvram */ - return (nvram_get(name)); -} - -/* - * Search the vars for a specific one and return its value as - * an integer. Returns 0 if not found. - */ -int -getintvar(char *vars, char *name) -{ - char *val; - - if ((val = getvar(vars, name)) == NULL) - return (0); - - return (bcm_strtoul(val, NULL, 0)); -} - -/* return pointer to location of substring 'needle' in 'haystack' */ -char* -bcmstrstr(char *haystack, char *needle) -{ - int len, nlen; - int i; - - if ((haystack == NULL) || (needle == NULL)) - return (haystack); - - nlen = strlen(needle); - len = strlen(haystack) - nlen + 1; - - for (i = 0; i < len; i++) - if (bcmp(needle, &haystack[i], nlen) == 0) - return (&haystack[i]); - return (NULL); -} - -void -bcm_mdelay(uint ms) -{ - uint i; - - for (i = 0; i < ms; i++) { - OSL_DELAY(1000); - } -} - -#define CRC_INNER_LOOP(n, c, x) \ - (c) = ((c) >> 8) ^ crc##n##_table[((c) ^ (x)) & 0xff] - -uint8 -crc8( - uint8 *pdata, /* pointer to array of data to process */ - uint nbytes, /* number of input data bytes to process */ - uint8 crc /* either CRC8_INIT_VALUE or previous return value */ -) -{ - /* hard code the crc loop instead of using CRC_INNER_LOOP macro - * to avoid the undefined and unnecessary (uint8 >> 8) operation. */ - while (nbytes-- > 0) - crc = crc8_table[(crc ^ *pdata++) & 0xff]; - - return crc; -} - -/******************************************************************************* - * crc16 - * - * Computes a crc16 over the input data using the polynomial: - * - * x^16 + x^12 +x^5 + 1 - * - * The caller provides the initial value (either CRC16_INIT_VALUE - * or the previous returned value) to allow for processing of - * discontiguous blocks of data. When generating the CRC the - * caller is responsible for complementing the final return value - * and inserting it into the byte stream. When checking, a final - * return value of CRC16_GOOD_VALUE indicates a valid CRC. - * - * Reference: Dallas Semiconductor Application Note 27 - * Williams, Ross N., "A Painless Guide to CRC Error Detection Algorithms", - * ver 3, Aug 1993, ross@guest.adelaide.edu.au, Rocksoft Pty Ltd., - * ftp://ftp.rocksoft.com/clients/rocksoft/papers/crc_v3.txt - * - ******************************************************************************/ - -static uint16 crc16_table[256] = { - 0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF, - 0x8C48, 0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7, - 0x1081, 0x0108, 0x3393, 0x221A, 0x56A5, 0x472C, 0x75B7, 0x643E, - 0x9CC9, 0x8D40, 0xBFDB, 0xAE52, 0xDAED, 0xCB64, 0xF9FF, 0xE876, - 0x2102, 0x308B, 0x0210, 0x1399, 0x6726, 0x76AF, 0x4434, 0x55BD, - 0xAD4A, 0xBCC3, 0x8E58, 0x9FD1, 0xEB6E, 0xFAE7, 0xC87C, 0xD9F5, - 0x3183, 0x200A, 0x1291, 0x0318, 0x77A7, 0x662E, 0x54B5, 0x453C, - 0xBDCB, 0xAC42, 0x9ED9, 0x8F50, 0xFBEF, 0xEA66, 0xD8FD, 0xC974, - 0x4204, 0x538D, 0x6116, 0x709F, 0x0420, 0x15A9, 0x2732, 0x36BB, - 0xCE4C, 0xDFC5, 0xED5E, 0xFCD7, 0x8868, 0x99E1, 0xAB7A, 0xBAF3, - 0x5285, 0x430C, 0x7197, 0x601E, 0x14A1, 0x0528, 0x37B3, 0x263A, - 0xDECD, 0xCF44, 0xFDDF, 0xEC56, 0x98E9, 0x8960, 0xBBFB, 0xAA72, - 0x6306, 0x728F, 0x4014, 0x519D, 0x2522, 0x34AB, 0x0630, 0x17B9, - 0xEF4E, 0xFEC7, 0xCC5C, 0xDDD5, 0xA96A, 0xB8E3, 0x8A78, 0x9BF1, - 0x7387, 0x620E, 0x5095, 0x411C, 0x35A3, 0x242A, 0x16B1, 0x0738, - 0xFFCF, 0xEE46, 0xDCDD, 0xCD54, 0xB9EB, 0xA862, 0x9AF9, 0x8B70, - 0x8408, 0x9581, 0xA71A, 0xB693, 0xC22C, 0xD3A5, 0xE13E, 0xF0B7, - 0x0840, 0x19C9, 0x2B52, 0x3ADB, 0x4E64, 0x5FED, 0x6D76, 0x7CFF, - 0x9489, 0x8500, 0xB79B, 0xA612, 0xD2AD, 0xC324, 0xF1BF, 0xE036, - 0x18C1, 0x0948, 0x3BD3, 0x2A5A, 0x5EE5, 0x4F6C, 0x7DF7, 0x6C7E, - 0xA50A, 0xB483, 0x8618, 0x9791, 0xE32E, 0xF2A7, 0xC03C, 0xD1B5, - 0x2942, 0x38CB, 0x0A50, 0x1BD9, 0x6F66, 0x7EEF, 0x4C74, 0x5DFD, - 0xB58B, 0xA402, 0x9699, 0x8710, 0xF3AF, 0xE226, 0xD0BD, 0xC134, - 0x39C3, 0x284A, 0x1AD1, 0x0B58, 0x7FE7, 0x6E6E, 0x5CF5, 0x4D7C, - 0xC60C, 0xD785, 0xE51E, 0xF497, 0x8028, 0x91A1, 0xA33A, 0xB2B3, - 0x4A44, 0x5BCD, 0x6956, 0x78DF, 0x0C60, 0x1DE9, 0x2F72, 0x3EFB, - 0xD68D, 0xC704, 0xF59F, 0xE416, 0x90A9, 0x8120, 0xB3BB, 0xA232, - 0x5AC5, 0x4B4C, 0x79D7, 0x685E, 0x1CE1, 0x0D68, 0x3FF3, 0x2E7A, - 0xE70E, 0xF687, 0xC41C, 0xD595, 0xA12A, 0xB0A3, 0x8238, 0x93B1, - 0x6B46, 0x7ACF, 0x4854, 0x59DD, 0x2D62, 0x3CEB, 0x0E70, 0x1FF9, - 0xF78F, 0xE606, 0xD49D, 0xC514, 0xB1AB, 0xA022, 0x92B9, 0x8330, - 0x7BC7, 0x6A4E, 0x58D5, 0x495C, 0x3DE3, 0x2C6A, 0x1EF1, 0x0F78 -}; - -uint16 -crc16( - uint8 *pdata, /* pointer to array of data to process */ - uint nbytes, /* number of input data bytes to process */ - uint16 crc /* either CRC16_INIT_VALUE or previous return value */ -) -{ - while (nbytes-- > 0) - CRC_INNER_LOOP(16, crc, *pdata++); - return crc; -} - -static uint32 crc32_table[256] = { - 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, - 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, - 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, - 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, - 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, - 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, - 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, - 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, - 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, - 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, - 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, - 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, - 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, - 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, - 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, - 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, - 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, - 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433, - 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, - 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, - 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, - 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, - 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, - 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, - 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, - 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, - 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, - 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, - 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, - 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, - 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, - 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, - 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, - 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, - 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, - 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, - 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, - 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, - 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, - 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, - 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, - 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, - 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, - 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, - 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, - 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, - 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, - 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, - 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, - 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, - 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, - 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, - 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, - 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, - 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, - 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, - 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, - 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, - 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, - 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, - 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, - 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, - 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, - 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D -}; - -uint32 -crc32( - uint8 *pdata, /* pointer to array of data to process */ - uint nbytes, /* number of input data bytes to process */ - uint32 crc /* either CRC32_INIT_VALUE or previous return value */ -) -{ - uint8 *pend; -#ifdef __mips__ - uint8 tmp[4]; - ulong *tptr = (ulong *)tmp; - - /* in case the beginning of the buffer isn't aligned */ - pend = (uint8 *)((uint)(pdata + 3) & 0xfffffffc); - nbytes -= (pend - pdata); - while (pdata < pend) - CRC_INNER_LOOP(32, crc, *pdata++); - - /* handle bulk of data as 32-bit words */ - pend = pdata + (nbytes & 0xfffffffc); - while (pdata < pend) { - *tptr = (*((ulong *)pdata))++; - CRC_INNER_LOOP(32, crc, tmp[0]); - CRC_INNER_LOOP(32, crc, tmp[1]); - CRC_INNER_LOOP(32, crc, tmp[2]); - CRC_INNER_LOOP(32, crc, tmp[3]); - } - - /* 1-3 bytes at end of buffer */ - pend = pdata + (nbytes & 0x03); - while (pdata < pend) - CRC_INNER_LOOP(32, crc, *pdata++); -#else - pend = pdata + nbytes; - while (pdata < pend) - CRC_INNER_LOOP(32, crc, *pdata++); -#endif - - return crc; -} - -#ifdef notdef -#define CLEN 1499 -#define CBUFSIZ (CLEN+4) -#define CNBUFS 5 - -void testcrc32(void) -{ - uint j,k,l; - uint8 *buf; - uint len[CNBUFS]; - uint32 crcr; - uint32 crc32tv[CNBUFS] = - {0xd2cb1faa, 0xd385c8fa, 0xf5b4f3f3, 0x55789e20, 0x00343110}; - - ASSERT((buf = MALLOC(CBUFSIZ*CNBUFS)) != NULL); - - /* step through all possible alignments */ - for (l=0;l<=4;l++) { - for (j=0; j<CNBUFS; j++) { - len[j] = CLEN; - for (k=0; k<len[j]; k++) - *(buf + j*CBUFSIZ + (k+l)) = (j+k) & 0xff; - } - - for (j=0; j<CNBUFS; j++) { - crcr = crc32(buf + j*CBUFSIZ + l, len[j], CRC32_INIT_VALUE); - ASSERT(crcr == crc32tv[j]); - } - } - - MFREE(buf, CBUFSIZ*CNBUFS); - return; -} -#endif - - |