/drivers/net/wireless/bcmdhd/include/bcmutils.h

/*
 * Misc useful os-independent macros and functions.
 *
 * Copyright (C) 1999-2012, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: bcmutils.h 365744 2012-10-30 22:01:29Z $
 */

#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

#ifdef PKTQ_LOG
#include <wlioctl.h>
#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;

#ifdef PKTQ_LOG
typedef struct {
	uint32 requested;    
	uint32 stored;	     
	uint32 saved;	     
	uint32 selfsaved;    
	uint32 full_dropped; 
	uint32 dropped;      
	uint32 sacrificed;   
	uint32 busy;         
	uint32 retry;        
	uint32 ps_retry;     
	uint32 retry_drop;   
	uint32 max_avail;    
	uint32 max_used;     
	uint32 queue_capacity; 
	uint32 rtsfail;        
	uint32 acked;          
} pktq_counters_t;
#endif 


#define PKTQ_COMMON	\
	uint16 num_prec;        			\
	uint16 hi_prec;         	\
	uint16 max;             					\
	uint16 len;             


struct pktq {
	PKTQ_COMMON
	
	struct pktq_prec q[PKTQ_MAX_PREC];
#ifdef PKTQ_LOG
	pktq_counters_t	_prec_cnt[PKTQ_MAX_PREC];     
	pktq_counters_t _prec_bytes[PKTQ_MAX_PREC];   
	uint32 _logtime;                   
#endif
};


struct spktq {
	PKTQ_COMMON
	
	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 

#ifndef PKTPOOL_LEN_MAX
#define PKTPOOL_LEN_MAX		40
#endif 
#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 *availcb_excl;
	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_notify_normal(osl_t *osh, pktpool_t *pktp);
extern int pktpool_avail_notify_exclusive(osl_t *osh, pktpool_t *pktp, pktpool_cb_t cb);
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 int pktpool_setmaxlen_strict(osl_t *osh, pktpool_t *pktp, uint16 maxlen);
extern void pktpool_emptycb_disable(pktpool_t *pktp, bool disable);
extern bool pktpool_emptycb_disabled(pktpool_t *pktp);

#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_pmax(pq, prec)		((pq)->q[prec].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_prev(struct pktq *pq, int prec, void *prev_p);
extern void *pktq_pdeq_with_fn(struct pktq *pq, int prec, ifpkt_cb_t fn, int arg);
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);
extern void *pktq_mpeek(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 *)(void *)pq), 0, (p))
#define pktenq_head(pq, p)	pktq_penq_head(((struct pktq *)(void *)pq), 0, (p))
#define pktdeq(pq)		pktq_pdeq(((struct pktq *)(void *)pq), 0)
#define pktdeq_tail(pq)		pktq_pdeq_tail(((struct pktq *)(void *)pq), 0)
#define pktqinit(pq, len)	pktq_init(((struct pktq *)(void *)pq), 1, len)

extern void pktq_init(struct pktq *pq, int num_prec, int max_len);
extern void pktq_set_max_plen(struct pktq *pq, int 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 pktsegcnt_war(osl_t *osh, void *p);
extern uint8 *pktdataoffset(osl_t *osh, void *p,  uint offset);
extern void *pktoffset(osl_t *osh, void *p,  uint offset);


#define	PKTPRIO_VDSCP	0x100		
#define	PKTPRIO_VLAN	0x200		
#define	PKTPRIO_UPD	0x400		
#define	PKTPRIO_DSCP	0x800		

extern uint pktsetprio(void *pkt, bool update_vtag);


extern int bcm_atoi(const char *s);
extern ulong bcm_strtoul(const char *cp, char **endp, uint base);
extern char *bcmstrstr(const char *haystack, const 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(const 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);

#define NVRAM_RECLAIM_CHECK(name)

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)
#define bcmdumptslog(buf, size)

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 


#ifndef LIMIT_TO_RANGE
#define LIMIT_TO_RANGE(x, min, max) \
	((x) < (min) ? (min) : ((x) > (max) ? (max) : (x)))
#endif 


#ifndef LIMIT_TO_MAX
#define LIMIT_TO_MAX(x, max) \
	(((x) > (max) ? (max) : (x)))
#endif 


#ifndef LIMIT_TO_MIN
#define LIMIT_TO_MIN(x, min) \
	(((x) < (min) ? (min) : (x)))
#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 ALIGN_SIZE(size, boundary) (((size) + (boundary) - 1) \
	                                         & ~((boundary) - 1))
#define	ISPOWEROF2(x)		((((x) - 1) & (x)) == 0)
#define VALID_MASK(mask)	!((mask) & ((mask) + 1))

#ifndef OFFSETOF
#ifdef __ARMCC_VERSION

#include <stddef.h>
#define	OFFSETOF(type, member)	offsetof(type, member)
#else
#define	OFFSETOF(type, member)	((uint)(uintptr)&((type *)0)->member)
#endif 
#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	isbitset(a, i)	(((a) & (1 << (i))) != 0)

#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	


#define MACF				"%02x:%02x:%02x:%02x:%02x:%02x"
#define ETHERP_TO_MACF(ea)	((struct ether_addr *) (ea))->octet[0], \
							((struct ether_addr *) (ea))->octet[1], \
							((struct ether_addr *) (ea))->octet[2], \
							((struct ether_addr *) (ea))->octet[3], \
							((struct ether_addr *) (ea))->octet[4], \
							((struct ether_addr *) (ea))->octet[5]

#define ETHER_TO_MACF(ea) 	(ea).octet[0], \
							(ea).octet[1], \
							(ea).octet[2], \
							(ea).octet[3], \
							(ea).octet[4], \
							(ea).octet[5]
#if !defined(SIMPLE_MAC_PRINT)
#define MACDBG "%02x:%02x:%02x:%02x:%02x:%02x"
#define MAC2STRDBG(ea) (ea)[0], (ea)[1], (ea)[2], (ea)[3], (ea)[4], (ea)[5]
#else
#define MACDBG				"%02x:%02x:%02x"
#define MAC2STRDBG(ea) (ea)[0], (ea)[4], (ea)[5]
#endif 


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


typedef struct bcm_bit_desc_ex {
	uint32 mask;
	const bcm_bit_desc_t *bitfield;
} bcm_bit_desc_ex_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_field(const bcm_bit_desc_ex_t *bd, uint32 field, char* buf, int len);

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)))


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

extern void bcm_binit(struct bcmstrbuf *b, char *buf, uint size);
extern void bcm_bprhex(struct bcmstrbuf *b, const char *msg, bool newline, uint8 *buf, int len);

extern void bcm_inc_bytes(uchar *num, int num_bytes, uint8 amount);
extern int bcm_cmp_bytes(const uchar *arg1, const uchar *arg2, uint8 nbytes);
extern void bcm_print_bytes(const 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_bitcount(uint8 *bitmap, uint bytelength);

extern int bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...);


extern uint16 bcm_qdbm_to_mw(uint8 qdbm);
extern uint8 bcm_mw_to_qdbm(uint16 mw);
extern uint bcm_mkiovar(char *name, char *data, uint datalen, char *buf, uint len);

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

#ifdef __cplusplus
	}
#endif

#endif