bcmdhd/dhdutil/include/bcmutils.h - platform/hardware/broadcom/wlan - Git at Google

 /*
  * Misc useful os-independent macros and functions.
  *
  * Copyright (C) 1999-2011, Broadcom Corporation
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
  * $Id: bcmutils.h,v 13.236.2.16 2011-01-26 00:45:06 Exp $
  */


 #ifndef	_bcmutils_h_
 #define	_bcmutils_h_

 #define bcm_strcpy_s(dst, noOfElements, src)            strcpy((dst), (src))
 #define bcm_strncpy_s(dst, noOfElements, src, count)    strncpy((dst), (src), (count))
 #define bcm_strcat_s(dst, noOfElements, src)            strcat((dst), (src))

 #ifdef __cplusplus
 extern "C" {
 #endif


 #define _BCM_U	0x01
 #define _BCM_L	0x02
 #define _BCM_D	0x04
 #define _BCM_C	0x08
 #define _BCM_P	0x10
 #define _BCM_S	0x20
 #define _BCM_X	0x40
 #define _BCM_SP	0x80

 extern const unsigned char bcm_ctype[];
 #define bcm_ismask(x)	(bcm_ctype[(int)(unsigned char)(x)])

 #define bcm_isalnum(c)	((bcm_ismask(c)&(_BCM_U|_BCM_L|_BCM_D)) != 0)
 #define bcm_isalpha(c)	((bcm_ismask(c)&(_BCM_U|_BCM_L)) != 0)
 #define bcm_iscntrl(c)	((bcm_ismask(c)&(_BCM_C)) != 0)
 #define bcm_isdigit(c)	((bcm_ismask(c)&(_BCM_D)) != 0)
 #define bcm_isgraph(c)	((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D)) != 0)
 #define bcm_islower(c)	((bcm_ismask(c)&(_BCM_L)) != 0)
 #define bcm_isprint(c)	((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D|_BCM_SP)) != 0)
 #define bcm_ispunct(c)	((bcm_ismask(c)&(_BCM_P)) != 0)
 #define bcm_isspace(c)	((bcm_ismask(c)&(_BCM_S)) != 0)
 #define bcm_isupper(c)	((bcm_ismask(c)&(_BCM_U)) != 0)
 #define bcm_isxdigit(c)	((bcm_ismask(c)&(_BCM_D|_BCM_X)) != 0)
 #define bcm_tolower(c)	(bcm_isupper((c)) ? ((c) + 'a' - 'A') : (c))
 #define bcm_toupper(c)	(bcm_islower((c)) ? ((c) + 'A' - 'a') : (c))


 struct bcmstrbuf {
 	char *buf;
 	unsigned int size;
 	char *origbuf;
 	unsigned int origsize;
 };


 #ifdef BCMDRIVER
 #include <osl.h>

 #define GPIO_PIN_NOTDEFINED 	0x20


 #define SPINWAIT(exp, us) { \
 	uint countdown = (us) + 9; \
 	while ((exp) && (countdown >= 10)) {\
 		OSL_DELAY(10); \
 		countdown -= 10; \
 	} \
 }


 #ifndef PKTQ_LEN_DEFAULT
 #define PKTQ_LEN_DEFAULT        128
 #endif
 #ifndef PKTQ_MAX_PREC
 #define PKTQ_MAX_PREC           16
 #endif

 typedef struct pktq_prec {
 	void *head;
 	void *tail;
 	uint16 len;
 	uint16 max;
 } pktq_prec_t;


 struct pktq {
 	uint16 num_prec;
 	uint16 hi_prec;
 	uint16 max;
 	uint16 len;

 	struct pktq_prec q[PKTQ_MAX_PREC];
 };


 struct spktq {
 	uint16 num_prec;
 	uint16 hi_prec;
 	uint16 max;
 	uint16 len;

 	struct pktq_prec q[1];
 };

 #define PKTQ_PREC_ITER(pq, prec)        for (prec = (pq)->num_prec - 1; prec >= 0; prec--)


 typedef bool (*ifpkt_cb_t)(void*, int);

 #ifdef BCMPKTPOOL
 #define POOL_ENAB(pool)		((pool) && (pool)->inited)
 #if defined(BCM4329C0)
 #define SHARED_POOL		(pktpool_shared_ptr)
 #else
 #define SHARED_POOL		(pktpool_shared)
 #endif
 #else
 #define POOL_ENAB(bus)		0
 #define SHARED_POOL		((struct pktpool *)NULL)
 #endif

 #define PKTPOOL_LEN_MAX		40
 #define PKTPOOL_CB_MAX		3

 struct pktpool;
 typedef void (*pktpool_cb_t)(struct pktpool *pool, void *arg);
 typedef struct {
 	pktpool_cb_t cb;
 	void *arg;
 } pktpool_cbinfo_t;

 #ifdef BCMDBG_POOL

 #define POOL_IDLE	0
 #define POOL_RXFILL	1
 #define POOL_RXDH	2
 #define POOL_RXD11	3
 #define POOL_TXDH	4
 #define POOL_TXD11	5
 #define POOL_AMPDU	6
 #define POOL_TXENQ	7

 typedef struct {
 	void *p;
 	uint32 cycles;
 	uint32 dur;
 } pktpool_dbg_t;

 typedef struct {
 	uint8 txdh;
 	uint8 txd11;
 	uint8 enq;
 	uint8 rxdh;
 	uint8 rxd11;
 	uint8 rxfill;
 	uint8 idle;
 } pktpool_stats_t;
 #endif

 typedef struct pktpool {
 	bool inited;
 	uint16 r;
 	uint16 w;
 	uint16 len;
 	uint16 maxlen;
 	uint16 plen;
 	bool istx;
 	bool empty;
 	uint8 cbtoggle;
 	uint8 cbcnt;
 	uint8 ecbcnt;
 	bool emptycb_disable;
 	pktpool_cbinfo_t cbs[PKTPOOL_CB_MAX];
 	pktpool_cbinfo_t ecbs[PKTPOOL_CB_MAX];
 	void *q[PKTPOOL_LEN_MAX + 1];

 #ifdef BCMDBG_POOL
 	uint8 dbg_cbcnt;
 	pktpool_cbinfo_t dbg_cbs[PKTPOOL_CB_MAX];
 	uint16 dbg_qlen;
 	pktpool_dbg_t dbg_q[PKTPOOL_LEN_MAX + 1];
 #endif
 } pktpool_t;

 #if defined(BCM4329C0)
 extern pktpool_t *pktpool_shared_ptr;
 #else
 extern pktpool_t *pktpool_shared;
 #endif

 extern int pktpool_init(osl_t *osh, pktpool_t *pktp, int *pktplen, int plen, bool istx);
 extern int pktpool_deinit(osl_t *osh, pktpool_t *pktp);
 extern int pktpool_fill(osl_t *osh, pktpool_t *pktp, bool minimal);
 extern void* pktpool_get(pktpool_t *pktp);
 extern void pktpool_free(pktpool_t *pktp, void *p);
 extern int pktpool_add(pktpool_t *pktp, void *p);
 extern uint16 pktpool_avail(pktpool_t *pktp);
 extern int pktpool_avail_register(pktpool_t *pktp, pktpool_cb_t cb, void *arg);
 extern int pktpool_empty_register(pktpool_t *pktp, pktpool_cb_t cb, void *arg);
 extern int pktpool_setmaxlen(pktpool_t *pktp, uint16 maxlen);
 extern void pktpool_emptycb_disable(pktpool_t *pktp, bool disable);

 #define POOLPTR(pp)			((pktpool_t *)(pp))
 #define pktpool_len(pp)			(POOLPTR(pp)->len - 1)
 #define pktpool_plen(pp)		(POOLPTR(pp)->plen)
 #define pktpool_maxlen(pp)		(POOLPTR(pp)->maxlen)

 #ifdef BCMDBG_POOL
 extern int pktpool_dbg_register(pktpool_t *pktp, pktpool_cb_t cb, void *arg);
 extern int pktpool_start_trigger(pktpool_t *pktp, void *p);
 extern int pktpool_dbg_dump(pktpool_t *pktp);
 extern int pktpool_dbg_notify(pktpool_t *pktp);
 extern int pktpool_stats_dump(pktpool_t *pktp, pktpool_stats_t *stats);
 #endif


 struct ether_addr;

 extern int ether_isbcast(const void *ea);
 extern int ether_isnulladdr(const void *ea);


 #define pktq_psetmax(pq, prec, _max)    ((pq)->q[prec].max = (_max))
 #define pktq_plen(pq, prec)             ((pq)->q[prec].len)
 #define pktq_pavail(pq, prec)           ((pq)->q[prec].max - (pq)->q[prec].len)
 #define pktq_pfull(pq, prec)            ((pq)->q[prec].len >= (pq)->q[prec].max)
 #define pktq_pempty(pq, prec)           ((pq)->q[prec].len == 0)

 #define pktq_ppeek(pq, prec)            ((pq)->q[prec].head)
 #define pktq_ppeek_tail(pq, prec)       ((pq)->q[prec].tail)

 extern void *pktq_penq(struct pktq *pq, int prec, void *p);
 extern void *pktq_penq_head(struct pktq *pq, int prec, void *p);
 extern void *pktq_pdeq(struct pktq *pq, int prec);
 extern void *pktq_pdeq_tail(struct pktq *pq, int prec);

 extern void pktq_pflush(osl_t *osh, struct pktq *pq, int prec, bool dir,
 	ifpkt_cb_t fn, int arg);

 extern bool pktq_pdel(struct pktq *pq, void *p, int prec);


 extern int pktq_mlen(struct pktq *pq, uint prec_bmp);
 extern void *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);


 #define pktq_len(pq)                    ((int)(pq)->len)
 #define pktq_max(pq)                    ((int)(pq)->max)
 #define pktq_avail(pq)                  ((int)((pq)->max - (pq)->len))
 #define pktq_full(pq)                   ((pq)->len >= (pq)->max)
 #define pktq_empty(pq)                  ((pq)->len == 0)


 #define pktenq(pq, p)		pktq_penq(((struct pktq *)pq), 0, (p))
 #define pktenq_head(pq, p)	pktq_penq_head(((struct pktq *)pq), 0, (p))
 #define pktdeq(pq)		pktq_pdeq(((struct pktq *)pq), 0)
 #define pktdeq_tail(pq)		pktq_pdeq_tail(((struct pktq *)pq), 0)
 #define pktqinit(pq, len) pktq_init(((struct pktq *)pq), 1, len)

 extern void pktq_init(struct pktq *pq, int num_prec, int max_len);

 extern void *pktq_deq(struct pktq *pq, int *prec_out);
 extern void *pktq_deq_tail(struct pktq *pq, int *prec_out);
 extern void *pktq_peek(struct pktq *pq, int *prec_out);
 extern void *pktq_peek_tail(struct pktq *pq, int *prec_out);
 extern void pktq_flush(osl_t *osh, struct pktq *pq, bool dir, ifpkt_cb_t fn, int arg);


 extern uint pktcopy(osl_t *osh, void *p, uint offset, int len, uchar *buf);
 extern uint pktfrombuf(osl_t *osh, void *p, uint offset, int len, uchar *buf);
 extern uint pkttotlen(osl_t *osh, void *p);
 extern void *pktlast(osl_t *osh, void *p);
 extern uint pktsegcnt(osl_t *osh, void *p);


 extern uint pktsetprio(void *pkt, bool update_vtag);
 #define	PKTPRIO_VDSCP	0x100
 #define	PKTPRIO_VLAN	0x200
 #define	PKTPRIO_UPD	0x400
 #define	PKTPRIO_DSCP	0x800


 extern int bcm_atoi(char *s);
 extern ulong bcm_strtoul(char *cp, char **endp, uint base);
 extern char *bcmstrstr(char *haystack, char *needle);
 extern char *bcmstrcat(char *dest, const char *src);
 extern char *bcmstrncat(char *dest, const char *src, uint size);
 extern ulong wchar2ascii(char *abuf, ushort *wbuf, ushort wbuflen, ulong abuflen);
 char* bcmstrtok(char **string, const char *delimiters, char *tokdelim);
 int bcmstricmp(const char *s1, const char *s2);
 int bcmstrnicmp(const char* s1, const char* s2, int cnt);


 extern char *bcm_ether_ntoa(const struct ether_addr *ea, char *buf);
 extern int bcm_ether_atoe(char *p, struct ether_addr *ea);


 struct ipv4_addr;
 extern char *bcm_ip_ntoa(struct ipv4_addr *ia, char *buf);


 extern void bcm_mdelay(uint ms);

 extern char *getvar(char *vars, const char *name);
 extern int getintvar(char *vars, const char *name);
 extern int getintvararray(char *vars, const char *name, int index);
 extern int getintvararraysize(char *vars, const char *name);
 extern uint getgpiopin(char *vars, char *pin_name, uint def_pin);
 #define bcm_perf_enable()
 #define bcmstats(fmt)
 #define	bcmlog(fmt, a1, a2)
 #define	bcmdumplog(buf, size)	*buf = '\0'
 #define	bcmdumplogent(buf, idx)	-1

 #define bcmtslog(tstamp, fmt, a1, a2)
 #define bcmprinttslogs()
 #define bcmprinttstamp(us)

 extern char *bcm_nvram_vars(uint *length);
 extern int bcm_nvram_cache(void *sih);


 typedef struct bcm_iovar {
 	const char *name;
 	uint16 varid;
 	uint16 flags;
 	uint16 type;
 	uint16 minlen;
 } bcm_iovar_t;


 #define IOV_GET 0
 #define IOV_SET 1


 #define IOV_GVAL(id)		((id)*2)
 #define IOV_SVAL(id)		(((id)*2)+IOV_SET)
 #define IOV_ISSET(actionid)	((actionid & IOV_SET) == IOV_SET)
 #define IOV_ID(actionid)	(actionid >> 1)


 extern const bcm_iovar_t *bcm_iovar_lookup(const bcm_iovar_t *table, const char *name);
 extern int bcm_iovar_lencheck(const bcm_iovar_t *table, void *arg, int len, bool set);
 #if defined(WLTINYDUMP) || defined(WLMSG_INFORM) || defined(WLMSG_ASSOC) || \
 	defined(WLMSG_PRPKT) || defined(WLMSG_WSEC)
 extern int bcm_format_ssid(char* buf, const uchar ssid[], uint ssid_len);
 #endif
 #endif


 #define IOVT_VOID	0
 #define IOVT_BOOL	1
 #define IOVT_INT8	2
 #define IOVT_UINT8	3
 #define IOVT_INT16	4
 #define IOVT_UINT16	5
 #define IOVT_INT32	6
 #define IOVT_UINT32	7
 #define IOVT_BUFFER	8
 #define BCM_IOVT_VALID(type) (((unsigned int)(type)) <= IOVT_BUFFER)


 #define BCM_IOV_TYPE_INIT { \
 	"void", \
 	"bool", \
 	"int8", \
 	"uint8", \
 	"int16", \
 	"uint16", \
 	"int32", \
 	"uint32", \
 	"buffer", \
 	"" }

 #define BCM_IOVT_IS_INT(type) (\
 	(type == IOVT_BOOL) || \
 	(type == IOVT_INT8) || \
 	(type == IOVT_UINT8) || \
 	(type == IOVT_INT16) || \
 	(type == IOVT_UINT16) || \
 	(type == IOVT_INT32) || \
 	(type == IOVT_UINT32))


 #define BCME_STRLEN 		64
 #define VALID_BCMERROR(e)  ((e <= 0) && (e >= BCME_LAST))


 #define BCME_OK				0
 #define BCME_ERROR			-1
 #define BCME_BADARG			-2
 #define BCME_BADOPTION			-3
 #define BCME_NOTUP			-4
 #define BCME_NOTDOWN			-5
 #define BCME_NOTAP			-6
 #define BCME_NOTSTA			-7
 #define BCME_BADKEYIDX			-8
 #define BCME_RADIOOFF 			-9
 #define BCME_NOTBANDLOCKED		-10
 #define BCME_NOCLK			-11
 #define BCME_BADRATESET			-12
 #define BCME_BADBAND			-13
 #define BCME_BUFTOOSHORT		-14
 #define BCME_BUFTOOLONG			-15
 #define BCME_BUSY			-16
 #define BCME_NOTASSOCIATED		-17
 #define BCME_BADSSIDLEN			-18
 #define BCME_OUTOFRANGECHAN		-19
 #define BCME_BADCHAN			-20
 #define BCME_BADADDR			-21
 #define BCME_NORESOURCE			-22
 #define BCME_UNSUPPORTED		-23
 #define BCME_BADLEN			-24
 #define BCME_NOTREADY			-25
 #define BCME_EPERM			-26
 #define BCME_NOMEM			-27
 #define BCME_ASSOCIATED			-28
 #define BCME_RANGE			-29
 #define BCME_NOTFOUND			-30
 #define BCME_WME_NOT_ENABLED		-31
 #define BCME_TSPEC_NOTFOUND		-32
 #define BCME_ACM_NOTSUPPORTED		-33
 #define BCME_NOT_WME_ASSOCIATION	-34
 #define BCME_SDIO_ERROR			-35
 #define BCME_DONGLE_DOWN		-36
 #define BCME_VERSION			-37
 #define BCME_TXFAIL			-38
 #define BCME_RXFAIL			-39
 #define BCME_NODEVICE			-40
 #define BCME_NMODE_DISABLED		-41
 #define BCME_NONRESIDENT		-42
 #define BCME_LAST			BCME_NONRESIDENT


 #define BCMERRSTRINGTABLE {		\
 	"OK",				\
 	"Undefined error",		\
 	"Bad Argument",			\
 	"Bad Option",			\
 	"Not up",			\
 	"Not down",			\
 	"Not AP",			\
 	"Not STA",			\
 	"Bad Key Index",		\
 	"Radio Off",			\
 	"Not band locked",		\
 	"No clock",			\
 	"Bad Rate valueset",		\
 	"Bad Band",			\
 	"Buffer too short",		\
 	"Buffer too long",		\
 	"Busy",				\
 	"Not Associated",		\
 	"Bad SSID len",			\
 	"Out of Range Channel",		\
 	"Bad Channel",			\
 	"Bad Address",			\
 	"Not Enough Resources",		\
 	"Unsupported",			\
 	"Bad length",			\
 	"Not Ready",			\
 	"Not Permitted",		\
 	"No Memory",			\
 	"Associated",			\
 	"Not In Range",			\
 	"Not Found",			\
 	"WME Not Enabled",		\
 	"TSPEC Not Found",		\
 	"ACM Not Supported",		\
 	"Not WME Association",		\
 	"SDIO Bus Error",		\
 	"Dongle Not Accessible",	\
 	"Incorrect version",		\
 	"TX Failure",			\
 	"RX Failure",			\
 	"Device Not Present",		\
 	"NMODE Disabled",		\
 	"Nonresident overlay access", \
 }

 #ifndef ABS
 #define	ABS(a)			(((a) < 0)?-(a):(a))
 #endif

 #ifndef MIN
 #define	MIN(a, b)		(((a) < (b))?(a):(b))
 #endif

 #ifndef MAX
 #define	MAX(a, b)		(((a) > (b))?(a):(b))
 #endif

 #define CEIL(x, y)		(((x) + ((y)-1)) / (y))
 #define	ROUNDUP(x, y)		((((x)+((y)-1))/(y))*(y))
 #define	ISALIGNED(a, x)		(((uintptr)(a) & ((x)-1)) == 0)
 #define ALIGN_ADDR(addr, boundary) (void *)(((uintptr)(addr) + (boundary) - 1) \
 	                                         & ~((boundary) - 1))
 #define	ISPOWEROF2(x)		((((x)-1)&(x)) == 0)
 #define VALID_MASK(mask)	!((mask) & ((mask) + 1))
 #ifndef OFFSETOF
 #define	OFFSETOF(type, member)	((uint)(uintptr)&((type *)0)->member)
 #endif
 #ifndef ARRAYSIZE
 #define ARRAYSIZE(a)		(sizeof(a)/sizeof(a[0]))
 #endif


 extern void *_bcmutils_dummy_fn;
 #define REFERENCE_FUNCTION(f)	(_bcmutils_dummy_fn = (void *)(f))


 #ifndef setbit
 #ifndef NBBY
 #define	NBBY	8
 #endif
 #define	setbit(a, i)	(((uint8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY))
 #define	clrbit(a, i)	(((uint8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
 #define	isset(a, i)	(((const uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY)))
 #define	isclr(a, i)	((((const uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
 #endif

 #define	NBITS(type)	(sizeof(type) * 8)
 #define NBITVAL(nbits)	(1 << (nbits))
 #define MAXBITVAL(nbits)	((1 << (nbits)) - 1)
 #define	NBITMASK(nbits)	MAXBITVAL(nbits)
 #define MAXNBVAL(nbyte)	MAXBITVAL((nbyte) * 8)


 #define MUX(pred, true, false) ((pred) ? (true) : (false))


 #define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1)
 #define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1)


 #define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1))
 #define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1))


 #define MODADD(x, y, bound) \
     MUX((x) + (y) >= (bound), (x) + (y) - (bound), (x) + (y))
 #define MODSUB(x, y, bound) \
     MUX(((int)(x)) - ((int)(y)) < 0, (x) - (y) + (bound), (x) - (y))


 #define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1))
 #define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1))


 #define CRC8_INIT_VALUE  0xff
 #define CRC8_GOOD_VALUE  0x9f
 #define CRC16_INIT_VALUE 0xffff
 #define CRC16_GOOD_VALUE 0xf0b8
 #define CRC32_INIT_VALUE 0xffffffff
 #define CRC32_GOOD_VALUE 0xdebb20e3


 typedef struct bcm_bit_desc {
 	uint32	bit;
 	const char* name;
 } bcm_bit_desc_t;


 typedef struct bcm_tlv {
 	uint8	id;
 	uint8	len;
 	uint8	data[1];
 } bcm_tlv_t;


 #define bcm_valid_tlv(elt, buflen) ((buflen) >= 2 && (int)(buflen) >= (int)(2 + (elt)->len))


 #define ETHER_ADDR_STR_LEN	18


 static INLINE void
 xor_128bit_block(const uint8 *src1, const uint8 *src2, uint8 *dst)
 {
 	if (
 #ifdef __i386__
 	    1 ||
 #endif
 	    (((uintptr)src1 | (uintptr)src2 | (uintptr)dst) & 3) == 0) {


 		((uint32 *)dst)[0] = ((const uint32 *)src1)[0] ^ ((const uint32 *)src2)[0];
 		((uint32 *)dst)[1] = ((const uint32 *)src1)[1] ^ ((const uint32 *)src2)[1];
 		((uint32 *)dst)[2] = ((const uint32 *)src1)[2] ^ ((const uint32 *)src2)[2];
 		((uint32 *)dst)[3] = ((const uint32 *)src1)[3] ^ ((const uint32 *)src2)[3];
 	} else {

 		int k;
 		for (k = 0; k < 16; k++)
 			dst[k] = src1[k] ^ src2[k];
 	}
 }


 extern uint8 hndcrc8(uint8 *p, uint nbytes, uint8 crc);
 extern uint16 hndcrc16(uint8 *p, uint nbytes, uint16 crc);
 extern uint32 hndcrc32(uint8 *p, uint nbytes, uint32 crc);

 #if defined(DHD_DEBUG) || defined(WLMSG_PRHDRS) || defined(WLMSG_PRPKT) || \
 	defined(WLMSG_ASSOC)
 extern int bcm_format_flags(const bcm_bit_desc_t *bd, uint32 flags, char* buf, int len);
 #endif

 #if defined(DHD_DEBUG) || defined(WLMSG_PRHDRS) || defined(WLMSG_PRPKT) || \
 	defined(WLMSG_ASSOC) || defined(WLMEDIA_PEAKRATE)
 extern int bcm_format_hex(char *str, const void *bytes, int len);
 #endif

 extern const char *bcm_crypto_algo_name(uint algo);
 extern char *bcm_chipname(uint chipid, char *buf, uint len);
 extern char *bcm_brev_str(uint32 brev, char *buf);
 extern void printbig(char *buf);
 extern void prhex(const char *msg, uchar *buf, uint len);


 extern bcm_tlv_t *bcm_next_tlv(bcm_tlv_t *elt, int *buflen);
 extern bcm_tlv_t *bcm_parse_tlvs(void *buf, int buflen, uint key);
 extern bcm_tlv_t *bcm_parse_ordered_tlvs(void *buf, int buflen, uint key);


 extern const char *bcmerrorstr(int bcmerror);


 typedef uint32 mbool;
 #define mboolset(mb, bit)		((mb) |= (bit))
 #define mboolclr(mb, bit)		((mb) &= ~(bit))
 #define mboolisset(mb, bit)		(((mb) & (bit)) != 0)
 #define	mboolmaskset(mb, mask, val)	((mb) = (((mb) & ~(mask)) | (val)))


 extern uint16 bcm_qdbm_to_mw(uint8 qdbm);
 extern uint8 bcm_mw_to_qdbm(uint16 mw);


 struct fielddesc {
 	const char *nameandfmt;
 	uint32 	offset;
 	uint32 	len;
 };

 extern void bcm_binit(struct bcmstrbuf *b, char *buf, uint size);
 extern int bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...);
 extern void bcm_inc_bytes(uchar *num, int num_bytes, uint8 amount);
 extern int bcm_cmp_bytes(uchar *arg1, uchar *arg2, uint8 nbytes);
 extern void bcm_print_bytes(char *name, const uchar *cdata, int len);

 typedef  uint32 (*bcmutl_rdreg_rtn)(void *arg0, uint arg1, uint32 offset);
 extern uint bcmdumpfields(bcmutl_rdreg_rtn func_ptr, void *arg0, uint arg1, struct fielddesc *str,
                           char *buf, uint32 bufsize);

 extern uint bcm_mkiovar(char *name, char *data, uint datalen, char *buf, uint len);
 extern uint bcm_bitcount(uint8 *bitmap, uint bytelength);


 #define SSID_FMT_BUF_LEN	((4 * DOT11_MAX_SSID_LEN) + 1)

 unsigned int process_nvram_vars(char *varbuf, unsigned int len);

 #ifdef __cplusplus
 	}
 #endif

 #endif
	/*
	* Misc useful os-independent macros and functions.
	*
	* Copyright (C) 1999-2011, Broadcom Corporation
	*
	* Permission to use, copy, modify, and/or distribute this software for any
	* purpose with or without fee is hereby granted, provided that the above
	* copyright notice and this permission notice appear in all copies.
	*
	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
	* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
	* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
	* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	*
	* $Id: bcmutils.h,v 13.236.2.16 2011-01-26 00:45:06 Exp $
	*/


	#ifndef _bcmutils_h_
	#define _bcmutils_h_

	#define bcm_strcpy_s(dst, noOfElements, src) strcpy((dst), (src))
	#define bcm_strncpy_s(dst, noOfElements, src, count) strncpy((dst), (src), (count))
	#define bcm_strcat_s(dst, noOfElements, src) strcat((dst), (src))

	#ifdef __cplusplus
	extern "C" {
	#endif


	#define _BCM_U 0x01
	#define _BCM_L 0x02
	#define _BCM_D 0x04
	#define _BCM_C 0x08
	#define _BCM_P 0x10
	#define _BCM_S 0x20
	#define _BCM_X 0x40
	#define _BCM_SP 0x80

	extern const unsigned char bcm_ctype[];
	#define bcm_ismask(x) (bcm_ctype[(int)(unsigned char)(x)])

	#define bcm_isalnum(c) ((bcm_ismask(c)&(_BCM_U\|_BCM_L\|_BCM_D)) != 0)
	#define bcm_isalpha(c) ((bcm_ismask(c)&(_BCM_U\|_BCM_L)) != 0)
	#define bcm_iscntrl(c) ((bcm_ismask(c)&(_BCM_C)) != 0)
	#define bcm_isdigit(c) ((bcm_ismask(c)&(_BCM_D)) != 0)
	#define bcm_isgraph(c) ((bcm_ismask(c)&(_BCM_P\|_BCM_U\|_BCM_L\|_BCM_D)) != 0)
	#define bcm_islower(c) ((bcm_ismask(c)&(_BCM_L)) != 0)
	#define bcm_isprint(c) ((bcm_ismask(c)&(_BCM_P\|_BCM_U\|_BCM_L\|_BCM_D\|_BCM_SP)) != 0)
	#define bcm_ispunct(c) ((bcm_ismask(c)&(_BCM_P)) != 0)
	#define bcm_isspace(c) ((bcm_ismask(c)&(_BCM_S)) != 0)
	#define bcm_isupper(c) ((bcm_ismask(c)&(_BCM_U)) != 0)
	#define bcm_isxdigit(c) ((bcm_ismask(c)&(_BCM_D\|_BCM_X)) != 0)
	#define bcm_tolower(c) (bcm_isupper((c)) ? ((c) + 'a' - 'A') : (c))
	#define bcm_toupper(c) (bcm_islower((c)) ? ((c) + 'A' - 'a') : (c))



	struct bcmstrbuf {
	char *buf;
	unsigned int size;
	char *origbuf;
	unsigned int origsize;
	};


	#ifdef BCMDRIVER
	#include <osl.h>

	#define GPIO_PIN_NOTDEFINED 0x20


	#define SPINWAIT(exp, us) { \
	uint countdown = (us) + 9; \
	while ((exp) && (countdown >= 10)) {\
	OSL_DELAY(10); \
	countdown -= 10; \
	} \
	}


	#ifndef PKTQ_LEN_DEFAULT
	#define PKTQ_LEN_DEFAULT 128
	#endif
	#ifndef PKTQ_MAX_PREC
	#define PKTQ_MAX_PREC 16
	#endif

	typedef struct pktq_prec {
	void *head;
	void *tail;
	uint16 len;
	uint16 max;
	} pktq_prec_t;



	struct pktq {
	uint16 num_prec;
	uint16 hi_prec;
	uint16 max;
	uint16 len;

	struct pktq_prec q[PKTQ_MAX_PREC];
	};


	struct spktq {
	uint16 num_prec;
	uint16 hi_prec;
	uint16 max;
	uint16 len;

	struct pktq_prec q[1];
	};

	#define PKTQ_PREC_ITER(pq, prec) for (prec = (pq)->num_prec - 1; prec >= 0; prec--)


	typedef bool (ifpkt_cb_t)(void, int);

	#ifdef BCMPKTPOOL
	#define POOL_ENAB(pool) ((pool) && (pool)->inited)
	#if defined(BCM4329C0)
	#define SHARED_POOL (pktpool_shared_ptr)
	#else
	#define SHARED_POOL (pktpool_shared)
	#endif
	#else
	#define POOL_ENAB(bus) 0
	#define SHARED_POOL ((struct pktpool *)NULL)
	#endif

	#define PKTPOOL_LEN_MAX 40
	#define PKTPOOL_CB_MAX 3

	struct pktpool;
	typedef void (pktpool_cb_t)(struct pktpool pool, void *arg);
	typedef struct {
	pktpool_cb_t cb;
	void *arg;
	} pktpool_cbinfo_t;

	#ifdef BCMDBG_POOL

	#define POOL_IDLE 0
	#define POOL_RXFILL 1
	#define POOL_RXDH 2
	#define POOL_RXD11 3
	#define POOL_TXDH 4
	#define POOL_TXD11 5
	#define POOL_AMPDU 6
	#define POOL_TXENQ 7

	typedef struct {
	void *p;
	uint32 cycles;
	uint32 dur;
	} pktpool_dbg_t;

	typedef struct {
	uint8 txdh;
	uint8 txd11;
	uint8 enq;
	uint8 rxdh;
	uint8 rxd11;
	uint8 rxfill;
	uint8 idle;
	} pktpool_stats_t;
	#endif

	typedef struct pktpool {
	bool inited;
	uint16 r;
	uint16 w;
	uint16 len;
	uint16 maxlen;
	uint16 plen;
	bool istx;
	bool empty;
	uint8 cbtoggle;
	uint8 cbcnt;
	uint8 ecbcnt;
	bool emptycb_disable;
	pktpool_cbinfo_t cbs[PKTPOOL_CB_MAX];
	pktpool_cbinfo_t ecbs[PKTPOOL_CB_MAX];
	void *q[PKTPOOL_LEN_MAX + 1];

	#ifdef BCMDBG_POOL
	uint8 dbg_cbcnt;
	pktpool_cbinfo_t dbg_cbs[PKTPOOL_CB_MAX];
	uint16 dbg_qlen;
	pktpool_dbg_t dbg_q[PKTPOOL_LEN_MAX + 1];
	#endif
	} pktpool_t;

	#if defined(BCM4329C0)
	extern pktpool_t *pktpool_shared_ptr;
	#else
	extern pktpool_t *pktpool_shared;
	#endif

	extern int pktpool_init(osl_t osh, pktpool_t pktp, int *pktplen, int plen, bool istx);
	extern int pktpool_deinit(osl_t osh, pktpool_t pktp);
	extern int pktpool_fill(osl_t osh, pktpool_t pktp, bool minimal);
	extern void* pktpool_get(pktpool_t *pktp);
	extern void pktpool_free(pktpool_t pktp, void p);
	extern int pktpool_add(pktpool_t pktp, void p);
	extern uint16 pktpool_avail(pktpool_t *pktp);
	extern int pktpool_avail_register(pktpool_t pktp, pktpool_cb_t cb, void arg);
	extern int pktpool_empty_register(pktpool_t pktp, pktpool_cb_t cb, void arg);
	extern int pktpool_setmaxlen(pktpool_t *pktp, uint16 maxlen);
	extern void pktpool_emptycb_disable(pktpool_t *pktp, bool disable);

	#define POOLPTR(pp) ((pktpool_t *)(pp))
	#define pktpool_len(pp) (POOLPTR(pp)->len - 1)
	#define pktpool_plen(pp) (POOLPTR(pp)->plen)
	#define pktpool_maxlen(pp) (POOLPTR(pp)->maxlen)

	#ifdef BCMDBG_POOL
	extern int pktpool_dbg_register(pktpool_t pktp, pktpool_cb_t cb, void arg);
	extern int pktpool_start_trigger(pktpool_t pktp, void p);
	extern int pktpool_dbg_dump(pktpool_t *pktp);
	extern int pktpool_dbg_notify(pktpool_t *pktp);
	extern int pktpool_stats_dump(pktpool_t pktp, pktpool_stats_t stats);
	#endif



	struct ether_addr;

	extern int ether_isbcast(const void *ea);
	extern int ether_isnulladdr(const void *ea);



	#define pktq_psetmax(pq, prec, _max) ((pq)->q[prec].max = (_max))
	#define pktq_plen(pq, prec) ((pq)->q[prec].len)
	#define pktq_pavail(pq, prec) ((pq)->q[prec].max - (pq)->q[prec].len)
	#define pktq_pfull(pq, prec) ((pq)->q[prec].len >= (pq)->q[prec].max)
	#define pktq_pempty(pq, prec) ((pq)->q[prec].len == 0)

	#define pktq_ppeek(pq, prec) ((pq)->q[prec].head)
	#define pktq_ppeek_tail(pq, prec) ((pq)->q[prec].tail)

	extern void pktq_penq(struct pktq pq, int prec, void *p);
	extern void pktq_penq_head(struct pktq pq, int prec, void *p);
	extern void pktq_pdeq(struct pktq pq, int prec);
	extern void pktq_pdeq_tail(struct pktq pq, int prec);

	extern void pktq_pflush(osl_t osh, struct pktq pq, int prec, bool dir,
	ifpkt_cb_t fn, int arg);

	extern bool pktq_pdel(struct pktq pq, void p, int prec);



	extern int pktq_mlen(struct pktq *pq, uint prec_bmp);
	extern void pktq_mdeq(struct pktq pq, uint prec_bmp, int *prec_out);



	#define pktq_len(pq) ((int)(pq)->len)
	#define pktq_max(pq) ((int)(pq)->max)
	#define pktq_avail(pq) ((int)((pq)->max - (pq)->len))
	#define pktq_full(pq) ((pq)->len >= (pq)->max)
	#define pktq_empty(pq) ((pq)->len == 0)


	#define pktenq(pq, p) pktq_penq(((struct pktq *)pq), 0, (p))
	#define pktenq_head(pq, p) pktq_penq_head(((struct pktq *)pq), 0, (p))
	#define pktdeq(pq) pktq_pdeq(((struct pktq *)pq), 0)
	#define pktdeq_tail(pq) pktq_pdeq_tail(((struct pktq *)pq), 0)
	#define pktqinit(pq, len) pktq_init(((struct pktq *)pq), 1, len)

	extern void pktq_init(struct pktq *pq, int num_prec, int max_len);

	extern void pktq_deq(struct pktq pq, int *prec_out);
	extern void pktq_deq_tail(struct pktq pq, int *prec_out);
	extern void pktq_peek(struct pktq pq, int *prec_out);
	extern void pktq_peek_tail(struct pktq pq, int *prec_out);
	extern void pktq_flush(osl_t osh, struct pktq pq, bool dir, ifpkt_cb_t fn, int arg);



	extern uint pktcopy(osl_t osh, void p, uint offset, int len, uchar *buf);
	extern uint pktfrombuf(osl_t osh, void p, uint offset, int len, uchar *buf);
	extern uint pkttotlen(osl_t osh, void p);
	extern void pktlast(osl_t osh, void *p);
	extern uint pktsegcnt(osl_t osh, void p);


	extern uint pktsetprio(void *pkt, bool update_vtag);
	#define PKTPRIO_VDSCP 0x100
	#define PKTPRIO_VLAN 0x200
	#define PKTPRIO_UPD 0x400
	#define PKTPRIO_DSCP 0x800


	extern int bcm_atoi(char *s);
	extern ulong bcm_strtoul(char cp, char *endp, uint base);
	extern char bcmstrstr(char haystack, char *needle);
	extern char bcmstrcat(char dest, const char *src);
	extern char bcmstrncat(char dest, const char *src, uint size);
	extern ulong wchar2ascii(char abuf, ushort wbuf, ushort wbuflen, ulong abuflen);
	char* bcmstrtok(char *string, const char delimiters, char *tokdelim);
	int bcmstricmp(const char s1, const char s2);
	int bcmstrnicmp(const char* s1, const char* s2, int cnt);



	extern char bcm_ether_ntoa(const struct ether_addr ea, char *buf);
	extern int bcm_ether_atoe(char p, struct ether_addr ea);


	struct ipv4_addr;
	extern char bcm_ip_ntoa(struct ipv4_addr ia, char *buf);


	extern void bcm_mdelay(uint ms);

	extern char getvar(char vars, const char *name);
	extern int getintvar(char vars, const char name);
	extern int getintvararray(char vars, const char name, int index);
	extern int getintvararraysize(char vars, const char name);
	extern uint getgpiopin(char vars, char pin_name, uint def_pin);
	#define bcm_perf_enable()
	#define bcmstats(fmt)
	#define bcmlog(fmt, a1, a2)
	#define bcmdumplog(buf, size) *buf = '\0'
	#define bcmdumplogent(buf, idx) -1

	#define bcmtslog(tstamp, fmt, a1, a2)
	#define bcmprinttslogs()
	#define bcmprinttstamp(us)

	extern char bcm_nvram_vars(uint length);
	extern int bcm_nvram_cache(void *sih);




	typedef struct bcm_iovar {
	const char *name;
	uint16 varid;
	uint16 flags;
	uint16 type;
	uint16 minlen;
	} bcm_iovar_t;




	#define IOV_GET 0
	#define IOV_SET 1


	#define IOV_GVAL(id) ((id)*2)
	#define IOV_SVAL(id) (((id)*2)+IOV_SET)
	#define IOV_ISSET(actionid) ((actionid & IOV_SET) == IOV_SET)
	#define IOV_ID(actionid) (actionid >> 1)



	extern const bcm_iovar_t bcm_iovar_lookup(const bcm_iovar_t table, const char *name);
	extern int bcm_iovar_lencheck(const bcm_iovar_t table, void arg, int len, bool set);
	#if defined(WLTINYDUMP) \|\| defined(WLMSG_INFORM) \|\| defined(WLMSG_ASSOC) \|\| \
	defined(WLMSG_PRPKT) \|\| defined(WLMSG_WSEC)
	extern int bcm_format_ssid(char* buf, const uchar ssid[], uint ssid_len);
	#endif
	#endif


	#define IOVT_VOID 0
	#define IOVT_BOOL 1
	#define IOVT_INT8 2
	#define IOVT_UINT8 3
	#define IOVT_INT16 4
	#define IOVT_UINT16 5
	#define IOVT_INT32 6
	#define IOVT_UINT32 7
	#define IOVT_BUFFER 8
	#define BCM_IOVT_VALID(type) (((unsigned int)(type)) <= IOVT_BUFFER)


	#define BCM_IOV_TYPE_INIT { \
	"void", \
	"bool", \
	"int8", \
	"uint8", \
	"int16", \
	"uint16", \
	"int32", \
	"uint32", \
	"buffer", \
	"" }

	#define BCM_IOVT_IS_INT(type) (\
	(type == IOVT_BOOL) \|\| \
	(type == IOVT_INT8) \|\| \
	(type == IOVT_UINT8) \|\| \
	(type == IOVT_INT16) \|\| \
	(type == IOVT_UINT16) \|\| \
	(type == IOVT_INT32) \|\| \
	(type == IOVT_UINT32))



	#define BCME_STRLEN 64
	#define VALID_BCMERROR(e) ((e <= 0) && (e >= BCME_LAST))




	#define BCME_OK 0
	#define BCME_ERROR -1
	#define BCME_BADARG -2
	#define BCME_BADOPTION -3
	#define BCME_NOTUP -4
	#define BCME_NOTDOWN -5
	#define BCME_NOTAP -6
	#define BCME_NOTSTA -7
	#define BCME_BADKEYIDX -8
	#define BCME_RADIOOFF -9
	#define BCME_NOTBANDLOCKED -10
	#define BCME_NOCLK -11
	#define BCME_BADRATESET -12
	#define BCME_BADBAND -13
	#define BCME_BUFTOOSHORT -14
	#define BCME_BUFTOOLONG -15
	#define BCME_BUSY -16
	#define BCME_NOTASSOCIATED -17
	#define BCME_BADSSIDLEN -18
	#define BCME_OUTOFRANGECHAN -19
	#define BCME_BADCHAN -20
	#define BCME_BADADDR -21
	#define BCME_NORESOURCE -22
	#define BCME_UNSUPPORTED -23
	#define BCME_BADLEN -24
	#define BCME_NOTREADY -25
	#define BCME_EPERM -26
	#define BCME_NOMEM -27
	#define BCME_ASSOCIATED -28
	#define BCME_RANGE -29
	#define BCME_NOTFOUND -30
	#define BCME_WME_NOT_ENABLED -31
	#define BCME_TSPEC_NOTFOUND -32
	#define BCME_ACM_NOTSUPPORTED -33
	#define BCME_NOT_WME_ASSOCIATION -34
	#define BCME_SDIO_ERROR -35
	#define BCME_DONGLE_DOWN -36
	#define BCME_VERSION -37
	#define BCME_TXFAIL -38
	#define BCME_RXFAIL -39
	#define BCME_NODEVICE -40
	#define BCME_NMODE_DISABLED -41
	#define BCME_NONRESIDENT -42
	#define BCME_LAST BCME_NONRESIDENT


	#define BCMERRSTRINGTABLE { \
	"OK", \
	"Undefined error", \
	"Bad Argument", \
	"Bad Option", \
	"Not up", \
	"Not down", \
	"Not AP", \
	"Not STA", \
	"Bad Key Index", \
	"Radio Off", \
	"Not band locked", \
	"No clock", \
	"Bad Rate valueset", \
	"Bad Band", \
	"Buffer too short", \
	"Buffer too long", \
	"Busy", \
	"Not Associated", \
	"Bad SSID len", \
	"Out of Range Channel", \
	"Bad Channel", \
	"Bad Address", \
	"Not Enough Resources", \
	"Unsupported", \
	"Bad length", \
	"Not Ready", \
	"Not Permitted", \
	"No Memory", \
	"Associated", \
	"Not In Range", \
	"Not Found", \
	"WME Not Enabled", \
	"TSPEC Not Found", \
	"ACM Not Supported", \
	"Not WME Association", \
	"SDIO Bus Error", \
	"Dongle Not Accessible", \
	"Incorrect version", \
	"TX Failure", \
	"RX Failure", \
	"Device Not Present", \
	"NMODE Disabled", \
	"Nonresident overlay access", \
	}

	#ifndef ABS
	#define ABS(a) (((a) < 0)?-(a):(a))
	#endif

	#ifndef MIN
	#define MIN(a, b) (((a) < (b))?(a):(b))
	#endif

	#ifndef MAX
	#define MAX(a, b) (((a) > (b))?(a):(b))
	#endif

	#define CEIL(x, y) (((x) + ((y)-1)) / (y))
	#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
	#define ISALIGNED(a, x) (((uintptr)(a) & ((x)-1)) == 0)
	#define ALIGN_ADDR(addr, boundary) (void *)(((uintptr)(addr) + (boundary) - 1) \
	& ~((boundary) - 1))
	#define ISPOWEROF2(x) ((((x)-1)&(x)) == 0)
	#define VALID_MASK(mask) !((mask) & ((mask) + 1))
	#ifndef OFFSETOF
	#define OFFSETOF(type, member) ((uint)(uintptr)&((type *)0)->member)
	#endif
	#ifndef ARRAYSIZE
	#define ARRAYSIZE(a) (sizeof(a)/sizeof(a[0]))
	#endif


	extern void *_bcmutils_dummy_fn;
	#define REFERENCE_FUNCTION(f) (_bcmutils_dummy_fn = (void *)(f))


	#ifndef setbit
	#ifndef NBBY
	#define NBBY 8
	#endif
	#define setbit(a, i) (((uint8 *)a)[(i)/NBBY] \|= 1<<((i)%NBBY))
	#define clrbit(a, i) (((uint8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
	#define isset(a, i) (((const uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY)))
	#define isclr(a, i) ((((const uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
	#endif

	#define NBITS(type) (sizeof(type) * 8)
	#define NBITVAL(nbits) (1 << (nbits))
	#define MAXBITVAL(nbits) ((1 << (nbits)) - 1)
	#define NBITMASK(nbits) MAXBITVAL(nbits)
	#define MAXNBVAL(nbyte) MAXBITVAL((nbyte) * 8)


	#define MUX(pred, true, false) ((pred) ? (true) : (false))


	#define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1)
	#define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1)


	#define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1))
	#define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1))


	#define MODADD(x, y, bound) \
	MUX((x) + (y) >= (bound), (x) + (y) - (bound), (x) + (y))
	#define MODSUB(x, y, bound) \
	MUX(((int)(x)) - ((int)(y)) < 0, (x) - (y) + (bound), (x) - (y))


	#define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1))
	#define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1))


	#define CRC8_INIT_VALUE 0xff
	#define CRC8_GOOD_VALUE 0x9f
	#define CRC16_INIT_VALUE 0xffff
	#define CRC16_GOOD_VALUE 0xf0b8
	#define CRC32_INIT_VALUE 0xffffffff
	#define CRC32_GOOD_VALUE 0xdebb20e3


	typedef struct bcm_bit_desc {
	uint32 bit;
	const char* name;
	} bcm_bit_desc_t;


	typedef struct bcm_tlv {
	uint8 id;
	uint8 len;
	uint8 data[1];
	} bcm_tlv_t;


	#define bcm_valid_tlv(elt, buflen) ((buflen) >= 2 && (int)(buflen) >= (int)(2 + (elt)->len))


	#define ETHER_ADDR_STR_LEN 18



	static INLINE void
	xor_128bit_block(const uint8 src1, const uint8 src2, uint8 *dst)
	{
	if (
	#ifdef __i386__
	1 \|\|
	#endif
	(((uintptr)src1 \| (uintptr)src2 \| (uintptr)dst) & 3) == 0) {


	((uint32 )dst)[0] = ((const uint32 )src1)[0] ^ ((const uint32 *)src2)[0];
	((uint32 )dst)[1] = ((const uint32 )src1)[1] ^ ((const uint32 *)src2)[1];
	((uint32 )dst)[2] = ((const uint32 )src1)[2] ^ ((const uint32 *)src2)[2];
	((uint32 )dst)[3] = ((const uint32 )src1)[3] ^ ((const uint32 *)src2)[3];
	} else {

	int k;
	for (k = 0; k < 16; k++)
	dst[k] = src1[k] ^ src2[k];
	}
	}



	extern uint8 hndcrc8(uint8 *p, uint nbytes, uint8 crc);
	extern uint16 hndcrc16(uint8 *p, uint nbytes, uint16 crc);
	extern uint32 hndcrc32(uint8 *p, uint nbytes, uint32 crc);

	#if defined(DHD_DEBUG) \|\| defined(WLMSG_PRHDRS) \|\| defined(WLMSG_PRPKT) \|\| \
	defined(WLMSG_ASSOC)
	extern int bcm_format_flags(const bcm_bit_desc_t bd, uint32 flags, char buf, int len);
	#endif

	#if defined(DHD_DEBUG) \|\| defined(WLMSG_PRHDRS) \|\| defined(WLMSG_PRPKT) \|\| \
	defined(WLMSG_ASSOC) \|\| defined(WLMEDIA_PEAKRATE)
	extern int bcm_format_hex(char str, const void bytes, int len);
	#endif

	extern const char *bcm_crypto_algo_name(uint algo);
	extern char bcm_chipname(uint chipid, char buf, uint len);
	extern char bcm_brev_str(uint32 brev, char buf);
	extern void printbig(char *buf);
	extern void prhex(const char msg, uchar buf, uint len);


	extern bcm_tlv_t bcm_next_tlv(bcm_tlv_t elt, int *buflen);
	extern bcm_tlv_t bcm_parse_tlvs(void buf, int buflen, uint key);
	extern bcm_tlv_t bcm_parse_ordered_tlvs(void buf, int buflen, uint key);


	extern const char *bcmerrorstr(int bcmerror);


	typedef uint32 mbool;
	#define mboolset(mb, bit) ((mb) \|= (bit))
	#define mboolclr(mb, bit) ((mb) &= ~(bit))
	#define mboolisset(mb, bit) (((mb) & (bit)) != 0)
	#define mboolmaskset(mb, mask, val) ((mb) = (((mb) & ~(mask)) \| (val)))


	extern uint16 bcm_qdbm_to_mw(uint8 qdbm);
	extern uint8 bcm_mw_to_qdbm(uint16 mw);


	struct fielddesc {
	const char *nameandfmt;
	uint32 offset;
	uint32 len;
	};

	extern void bcm_binit(struct bcmstrbuf b, char buf, uint size);
	extern int bcm_bprintf(struct bcmstrbuf b, const char fmt, ...);
	extern void bcm_inc_bytes(uchar *num, int num_bytes, uint8 amount);
	extern int bcm_cmp_bytes(uchar arg1, uchar arg2, uint8 nbytes);
	extern void bcm_print_bytes(char name, const uchar cdata, int len);

	typedef uint32 (bcmutl_rdreg_rtn)(void arg0, uint arg1, uint32 offset);
	extern uint bcmdumpfields(bcmutl_rdreg_rtn func_ptr, void arg0, uint arg1, struct fielddesc str,
	char *buf, uint32 bufsize);

	extern uint bcm_mkiovar(char name, char data, uint datalen, char *buf, uint len);
	extern uint bcm_bitcount(uint8 *bitmap, uint bytelength);



	#define SSID_FMT_BUF_LEN ((4 * DOT11_MAX_SSID_LEN) + 1)

	unsigned int process_nvram_vars(char *varbuf, unsigned int len);

	#ifdef __cplusplus
	}
	#endif

	#endif