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      1 /*
      2  * Misc useful os-independent macros and functions.
      3  *
      4  * Copyright (C) 1999-2013, Broadcom Corporation
      5  *
      6  * Permission to use, copy, modify, and/or distribute this software for any
      7  * purpose with or without fee is hereby granted, provided that the above
      8  * copyright notice and this permission notice appear in all copies.
      9  *
     10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     13  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
     15  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
     16  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     17  *
     18  * $Id: bcmutils.h 382763 2013-02-04 10:21:08Z $
     19  */
     20 
     21 #ifndef	_bcmutils_h_
     22 #define	_bcmutils_h_
     23 
     24 #define bcm_strcpy_s(dst, noOfElements, src)            strcpy((dst), (src))
     25 #define bcm_strncpy_s(dst, noOfElements, src, count)    strncpy((dst), (src), (count))
     26 #define bcm_strcat_s(dst, noOfElements, src)            strcat((dst), (src))
     27 
     28 #ifdef __cplusplus
     29 extern "C" {
     30 #endif
     31 
     32 #ifdef PKTQ_LOG
     33 #include <wlioctl.h>
     34 #endif
     35 
     36 /* ctype replacement */
     37 #define _BCM_U	0x01	/* upper */
     38 #define _BCM_L	0x02	/* lower */
     39 #define _BCM_D	0x04	/* digit */
     40 #define _BCM_C	0x08	/* cntrl */
     41 #define _BCM_P	0x10	/* punct */
     42 #define _BCM_S	0x20	/* white space (space/lf/tab) */
     43 #define _BCM_X	0x40	/* hex digit */
     44 #define _BCM_SP	0x80	/* hard space (0x20) */
     45 
     46 extern const unsigned char bcm_ctype[];
     47 #define bcm_ismask(x)	(bcm_ctype[(int)(unsigned char)(x)])
     48 
     49 #define bcm_isalnum(c)	((bcm_ismask(c)&(_BCM_U|_BCM_L|_BCM_D)) != 0)
     50 #define bcm_isalpha(c)	((bcm_ismask(c)&(_BCM_U|_BCM_L)) != 0)
     51 #define bcm_iscntrl(c)	((bcm_ismask(c)&(_BCM_C)) != 0)
     52 #define bcm_isdigit(c)	((bcm_ismask(c)&(_BCM_D)) != 0)
     53 #define bcm_isgraph(c)	((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D)) != 0)
     54 #define bcm_islower(c)	((bcm_ismask(c)&(_BCM_L)) != 0)
     55 #define bcm_isprint(c)	((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D|_BCM_SP)) != 0)
     56 #define bcm_ispunct(c)	((bcm_ismask(c)&(_BCM_P)) != 0)
     57 #define bcm_isspace(c)	((bcm_ismask(c)&(_BCM_S)) != 0)
     58 #define bcm_isupper(c)	((bcm_ismask(c)&(_BCM_U)) != 0)
     59 #define bcm_isxdigit(c)	((bcm_ismask(c)&(_BCM_D|_BCM_X)) != 0)
     60 #define bcm_tolower(c)	(bcm_isupper((c)) ? ((c) + 'a' - 'A') : (c))
     61 #define bcm_toupper(c)	(bcm_islower((c)) ? ((c) + 'A' - 'a') : (c))
     62 
     63 /* Buffer structure for collecting string-formatted data
     64 * using bcm_bprintf() API.
     65 * Use bcm_binit() to initialize before use
     66 */
     67 
     68 struct bcmstrbuf {
     69 	char *buf;	/* pointer to current position in origbuf */
     70 	unsigned int size;	/* current (residual) size in bytes */
     71 	char *origbuf;	/* unmodified pointer to orignal buffer */
     72 	unsigned int origsize;	/* unmodified orignal buffer size in bytes */
     73 };
     74 
     75 /* ** driver-only section ** */
     76 #ifdef BCMDRIVER
     77 #include <osl.h>
     78 
     79 #define GPIO_PIN_NOTDEFINED 	0x20	/* Pin not defined */
     80 
     81 /*
     82  * Spin at most 'us' microseconds while 'exp' is true.
     83  * Caller should explicitly test 'exp' when this completes
     84  * and take appropriate error action if 'exp' is still true.
     85  */
     86 #define SPINWAIT(exp, us) { \
     87 	uint countdown = (us) + 9; \
     88 	while ((exp) && (countdown >= 10)) {\
     89 		OSL_DELAY(10); \
     90 		countdown -= 10; \
     91 	} \
     92 }
     93 
     94 /* osl multi-precedence packet queue */
     95 #ifndef PKTQ_LEN_DEFAULT
     96 #define PKTQ_LEN_DEFAULT        128	/* Max 128 packets */
     97 #endif
     98 #ifndef PKTQ_MAX_PREC
     99 #define PKTQ_MAX_PREC           16	/* Maximum precedence levels */
    100 #endif
    101 
    102 typedef struct pktq_prec {
    103 	void *head;     /* first packet to dequeue */
    104 	void *tail;     /* last packet to dequeue */
    105 	uint16 len;     /* number of queued packets */
    106 	uint16 max;     /* maximum number of queued packets */
    107 } pktq_prec_t;
    108 
    109 #ifdef PKTQ_LOG
    110 typedef struct {
    111 	uint32 requested;    /* packets requested to be stored */
    112 	uint32 stored;	     /* packets stored */
    113 	uint32 saved;	     /* packets saved,
    114 	                            because a lowest priority queue has given away one packet
    115 	                      */
    116 	uint32 selfsaved;    /* packets saved,
    117 	                            because an older packet from the same queue has been dropped
    118 	                      */
    119 	uint32 full_dropped; /* packets dropped,
    120 	                            because pktq is full with higher precedence packets
    121 	                      */
    122 	uint32 dropped;      /* packets dropped because pktq per that precedence is full */
    123 	uint32 sacrificed;   /* packets dropped,
    124 	                            in order to save one from a queue of a highest priority
    125 	                      */
    126 	uint32 busy;         /* packets droped because of hardware/transmission error */
    127 	uint32 retry;        /* packets re-sent because they were not received */
    128 	uint32 ps_retry;     /* packets retried again prior to moving power save mode */
    129 	uint32 retry_drop;   /* packets finally dropped after retry limit */
    130 	uint32 max_avail;    /* the high-water mark of the queue capacity for packets -
    131 	                            goes to zero as queue fills
    132 	                      */
    133 	uint32 max_used;     /* the high-water mark of the queue utilisation for packets -
    134 						        increases with use ('inverse' of max_avail)
    135 				          */
    136 	uint32 queue_capacity; /* the maximum capacity of the queue */
    137 	uint32 rtsfail;        /* count of rts attempts that failed to receive cts */
    138 	uint32 acked;          /* count of packets sent (acked) successfully */
    139 } pktq_counters_t;
    140 #endif /* PKTQ_LOG */
    141 
    142 
    143 #define PKTQ_COMMON	\
    144 	uint16 num_prec;        /* number of precedences in use */			\
    145 	uint16 hi_prec;         /* rapid dequeue hint (>= highest non-empty prec) */	\
    146 	uint16 max;             /* total max packets */					\
    147 	uint16 len;             /* total number of packets */
    148 
    149 /* multi-priority pkt queue */
    150 struct pktq {
    151 	PKTQ_COMMON
    152 	/* q array must be last since # of elements can be either PKTQ_MAX_PREC or 1 */
    153 	struct pktq_prec q[PKTQ_MAX_PREC];
    154 #ifdef PKTQ_LOG
    155 	pktq_counters_t	_prec_cnt[PKTQ_MAX_PREC];     /* Counters per queue  */
    156 	pktq_counters_t _prec_bytes[PKTQ_MAX_PREC];   /* Byte count per queue  */
    157 	uint32 _logtime;                   /* timestamp of last counter clear  */
    158 #endif
    159 };
    160 
    161 /* simple, non-priority pkt queue */
    162 struct spktq {
    163 	PKTQ_COMMON
    164 	/* q array must be last since # of elements can be either PKTQ_MAX_PREC or 1 */
    165 	struct pktq_prec q[1];
    166 };
    167 
    168 #define PKTQ_PREC_ITER(pq, prec)        for (prec = (pq)->num_prec - 1; prec >= 0; prec--)
    169 
    170 /* fn(pkt, arg).  return true if pkt belongs to if */
    171 typedef bool (*ifpkt_cb_t)(void*, int);
    172 
    173 #ifdef BCMPKTPOOL
    174 #define POOL_ENAB(pool)		((pool) && (pool)->inited)
    175 #define SHARED_POOL		(pktpool_shared)
    176 #else /* BCMPKTPOOL */
    177 #define POOL_ENAB(bus)		0
    178 #define SHARED_POOL		((struct pktpool *)NULL)
    179 #endif /* BCMPKTPOOL */
    180 
    181 #ifndef PKTPOOL_LEN_MAX
    182 #define PKTPOOL_LEN_MAX		40
    183 #endif /* PKTPOOL_LEN_MAX */
    184 #define PKTPOOL_CB_MAX		3
    185 
    186 struct pktpool;
    187 typedef void (*pktpool_cb_t)(struct pktpool *pool, void *arg);
    188 typedef struct {
    189 	pktpool_cb_t cb;
    190 	void *arg;
    191 } pktpool_cbinfo_t;
    192 
    193 #ifdef BCMDBG_POOL
    194 /* pkt pool debug states */
    195 #define POOL_IDLE	0
    196 #define POOL_RXFILL	1
    197 #define POOL_RXDH	2
    198 #define POOL_RXD11	3
    199 #define POOL_TXDH	4
    200 #define POOL_TXD11	5
    201 #define POOL_AMPDU	6
    202 #define POOL_TXENQ	7
    203 
    204 typedef struct {
    205 	void *p;
    206 	uint32 cycles;
    207 	uint32 dur;
    208 } pktpool_dbg_t;
    209 
    210 typedef struct {
    211 	uint8 txdh;	/* tx to host */
    212 	uint8 txd11;	/* tx to d11 */
    213 	uint8 enq;	/* waiting in q */
    214 	uint8 rxdh;	/* rx from host */
    215 	uint8 rxd11;	/* rx from d11 */
    216 	uint8 rxfill;	/* dma_rxfill */
    217 	uint8 idle;	/* avail in pool */
    218 } pktpool_stats_t;
    219 #endif /* BCMDBG_POOL */
    220 
    221 typedef struct pktpool {
    222 	bool inited;
    223 	uint16 r;
    224 	uint16 w;
    225 	uint16 len;
    226 	uint16 maxlen;
    227 	uint16 plen;
    228 	bool istx;
    229 	bool empty;
    230 	uint8 cbtoggle;
    231 	uint8 cbcnt;
    232 	uint8 ecbcnt;
    233 	bool emptycb_disable;
    234 	pktpool_cbinfo_t *availcb_excl;
    235 	pktpool_cbinfo_t cbs[PKTPOOL_CB_MAX];
    236 	pktpool_cbinfo_t ecbs[PKTPOOL_CB_MAX];
    237 	void *q[PKTPOOL_LEN_MAX + 1];
    238 
    239 #ifdef BCMDBG_POOL
    240 	uint8 dbg_cbcnt;
    241 	pktpool_cbinfo_t dbg_cbs[PKTPOOL_CB_MAX];
    242 	uint16 dbg_qlen;
    243 	pktpool_dbg_t dbg_q[PKTPOOL_LEN_MAX + 1];
    244 #endif
    245 } pktpool_t;
    246 
    247 extern pktpool_t *pktpool_shared;
    248 
    249 extern int pktpool_init(osl_t *osh, pktpool_t *pktp, int *pktplen, int plen, bool istx);
    250 extern int pktpool_deinit(osl_t *osh, pktpool_t *pktp);
    251 extern int pktpool_fill(osl_t *osh, pktpool_t *pktp, bool minimal);
    252 extern void* pktpool_get(pktpool_t *pktp);
    253 extern void pktpool_free(pktpool_t *pktp, void *p);
    254 extern int pktpool_add(pktpool_t *pktp, void *p);
    255 extern uint16 pktpool_avail(pktpool_t *pktp);
    256 extern int pktpool_avail_notify_normal(osl_t *osh, pktpool_t *pktp);
    257 extern int pktpool_avail_notify_exclusive(osl_t *osh, pktpool_t *pktp, pktpool_cb_t cb);
    258 extern int pktpool_avail_register(pktpool_t *pktp, pktpool_cb_t cb, void *arg);
    259 extern int pktpool_empty_register(pktpool_t *pktp, pktpool_cb_t cb, void *arg);
    260 extern int pktpool_setmaxlen(pktpool_t *pktp, uint16 maxlen);
    261 extern int pktpool_setmaxlen_strict(osl_t *osh, pktpool_t *pktp, uint16 maxlen);
    262 extern void pktpool_emptycb_disable(pktpool_t *pktp, bool disable);
    263 extern bool pktpool_emptycb_disabled(pktpool_t *pktp);
    264 
    265 #define POOLPTR(pp)			((pktpool_t *)(pp))
    266 #define pktpool_len(pp)			(POOLPTR(pp)->len - 1)
    267 #define pktpool_plen(pp)		(POOLPTR(pp)->plen)
    268 #define pktpool_maxlen(pp)		(POOLPTR(pp)->maxlen)
    269 
    270 #ifdef BCMDBG_POOL
    271 extern int pktpool_dbg_register(pktpool_t *pktp, pktpool_cb_t cb, void *arg);
    272 extern int pktpool_start_trigger(pktpool_t *pktp, void *p);
    273 extern int pktpool_dbg_dump(pktpool_t *pktp);
    274 extern int pktpool_dbg_notify(pktpool_t *pktp);
    275 extern int pktpool_stats_dump(pktpool_t *pktp, pktpool_stats_t *stats);
    276 #endif /* BCMDBG_POOL */
    277 
    278 /* forward definition of ether_addr structure used by some function prototypes */
    279 
    280 struct ether_addr;
    281 
    282 extern int ether_isbcast(const void *ea);
    283 extern int ether_isnulladdr(const void *ea);
    284 
    285 /* operations on a specific precedence in packet queue */
    286 
    287 #define pktq_psetmax(pq, prec, _max)	((pq)->q[prec].max = (_max))
    288 #define pktq_pmax(pq, prec)		((pq)->q[prec].max)
    289 #define pktq_plen(pq, prec)		((pq)->q[prec].len)
    290 #define pktq_pavail(pq, prec)		((pq)->q[prec].max - (pq)->q[prec].len)
    291 #define pktq_pfull(pq, prec)		((pq)->q[prec].len >= (pq)->q[prec].max)
    292 #define pktq_pempty(pq, prec)		((pq)->q[prec].len == 0)
    293 
    294 #define pktq_ppeek(pq, prec)		((pq)->q[prec].head)
    295 #define pktq_ppeek_tail(pq, prec)	((pq)->q[prec].tail)
    296 
    297 extern void *pktq_penq(struct pktq *pq, int prec, void *p);
    298 extern void *pktq_penq_head(struct pktq *pq, int prec, void *p);
    299 extern void *pktq_pdeq(struct pktq *pq, int prec);
    300 extern void *pktq_pdeq_prev(struct pktq *pq, int prec, void *prev_p);
    301 extern void *pktq_pdeq_with_fn(struct pktq *pq, int prec, ifpkt_cb_t fn, int arg);
    302 extern void *pktq_pdeq_tail(struct pktq *pq, int prec);
    303 /* Empty the queue at particular precedence level */
    304 extern void pktq_pflush(osl_t *osh, struct pktq *pq, int prec, bool dir,
    305 	ifpkt_cb_t fn, int arg);
    306 /* Remove a specified packet from its queue */
    307 extern bool pktq_pdel(struct pktq *pq, void *p, int prec);
    308 
    309 /* operations on a set of precedences in packet queue */
    310 
    311 extern int pktq_mlen(struct pktq *pq, uint prec_bmp);
    312 extern void *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
    313 extern void *pktq_mpeek(struct pktq *pq, uint prec_bmp, int *prec_out);
    314 
    315 /* operations on packet queue as a whole */
    316 
    317 #define pktq_len(pq)		((int)(pq)->len)
    318 #define pktq_max(pq)		((int)(pq)->max)
    319 #define pktq_avail(pq)		((int)((pq)->max - (pq)->len))
    320 #define pktq_full(pq)		((pq)->len >= (pq)->max)
    321 #define pktq_empty(pq)		((pq)->len == 0)
    322 
    323 /* operations for single precedence queues */
    324 #define pktenq(pq, p)		pktq_penq(((struct pktq *)(void *)pq), 0, (p))
    325 #define pktenq_head(pq, p)	pktq_penq_head(((struct pktq *)(void *)pq), 0, (p))
    326 #define pktdeq(pq)		pktq_pdeq(((struct pktq *)(void *)pq), 0)
    327 #define pktdeq_tail(pq)		pktq_pdeq_tail(((struct pktq *)(void *)pq), 0)
    328 #define pktqinit(pq, len)	pktq_init(((struct pktq *)(void *)pq), 1, len)
    329 
    330 extern void pktq_init(struct pktq *pq, int num_prec, int max_len);
    331 extern void pktq_set_max_plen(struct pktq *pq, int prec, int max_len);
    332 
    333 /* prec_out may be NULL if caller is not interested in return value */
    334 extern void *pktq_deq(struct pktq *pq, int *prec_out);
    335 extern void *pktq_deq_tail(struct pktq *pq, int *prec_out);
    336 extern void *pktq_peek(struct pktq *pq, int *prec_out);
    337 extern void *pktq_peek_tail(struct pktq *pq, int *prec_out);
    338 extern void pktq_flush(osl_t *osh, struct pktq *pq, bool dir, ifpkt_cb_t fn, int arg);
    339 
    340 /* externs */
    341 /* packet */
    342 extern uint pktcopy(osl_t *osh, void *p, uint offset, int len, uchar *buf);
    343 extern uint pktfrombuf(osl_t *osh, void *p, uint offset, int len, uchar *buf);
    344 extern uint pkttotlen(osl_t *osh, void *p);
    345 extern void *pktlast(osl_t *osh, void *p);
    346 extern uint pktsegcnt(osl_t *osh, void *p);
    347 extern uint pktsegcnt_war(osl_t *osh, void *p);
    348 extern uint8 *pktdataoffset(osl_t *osh, void *p,  uint offset);
    349 extern void *pktoffset(osl_t *osh, void *p,  uint offset);
    350 
    351 /* Get priority from a packet and pass it back in scb (or equiv) */
    352 #define	PKTPRIO_VDSCP	0x100		/* DSCP prio found after VLAN tag */
    353 #define	PKTPRIO_VLAN	0x200		/* VLAN prio found */
    354 #define	PKTPRIO_UPD	0x400		/* DSCP used to update VLAN prio */
    355 #define	PKTPRIO_DSCP	0x800		/* DSCP prio found */
    356 
    357 extern uint pktsetprio(void *pkt, bool update_vtag);
    358 
    359 /* string */
    360 extern int bcm_atoi(const char *s);
    361 extern ulong bcm_strtoul(const char *cp, char **endp, uint base);
    362 extern char *bcmstrstr(const char *haystack, const char *needle);
    363 extern char *bcmstrcat(char *dest, const char *src);
    364 extern char *bcmstrncat(char *dest, const char *src, uint size);
    365 extern ulong wchar2ascii(char *abuf, ushort *wbuf, ushort wbuflen, ulong abuflen);
    366 char* bcmstrtok(char **string, const char *delimiters, char *tokdelim);
    367 int bcmstricmp(const char *s1, const char *s2);
    368 int bcmstrnicmp(const char* s1, const char* s2, int cnt);
    369 
    370 
    371 /* ethernet address */
    372 extern char *bcm_ether_ntoa(const struct ether_addr *ea, char *buf);
    373 extern int bcm_ether_atoe(const char *p, struct ether_addr *ea);
    374 
    375 /* ip address */
    376 struct ipv4_addr;
    377 extern char *bcm_ip_ntoa(struct ipv4_addr *ia, char *buf);
    378 
    379 /* delay */
    380 extern void bcm_mdelay(uint ms);
    381 /* variable access */
    382 #define NVRAM_RECLAIM_CHECK(name)
    383 
    384 extern char *getvar(char *vars, const char *name);
    385 extern int getintvar(char *vars, const char *name);
    386 extern int getintvararray(char *vars, const char *name, int index);
    387 extern int getintvararraysize(char *vars, const char *name);
    388 extern uint getgpiopin(char *vars, char *pin_name, uint def_pin);
    389 #define bcm_perf_enable()
    390 #define bcmstats(fmt)
    391 #define	bcmlog(fmt, a1, a2)
    392 #define	bcmdumplog(buf, size)	*buf = '\0'
    393 #define	bcmdumplogent(buf, idx)	-1
    394 
    395 #define bcmtslog(tstamp, fmt, a1, a2)
    396 #define bcmprinttslogs()
    397 #define bcmprinttstamp(us)
    398 #define bcmdumptslog(buf, size)
    399 
    400 extern char *bcm_nvram_vars(uint *length);
    401 extern int bcm_nvram_cache(void *sih);
    402 
    403 /* Support for sharing code across in-driver iovar implementations.
    404  * The intent is that a driver use this structure to map iovar names
    405  * to its (private) iovar identifiers, and the lookup function to
    406  * find the entry.  Macros are provided to map ids and get/set actions
    407  * into a single number space for a switch statement.
    408  */
    409 
    410 /* iovar structure */
    411 typedef struct bcm_iovar {
    412 	const char *name;	/* name for lookup and display */
    413 	uint16 varid;		/* id for switch */
    414 	uint16 flags;		/* driver-specific flag bits */
    415 	uint16 type;		/* base type of argument */
    416 	uint16 minlen;		/* min length for buffer vars */
    417 } bcm_iovar_t;
    418 
    419 /* varid definitions are per-driver, may use these get/set bits */
    420 
    421 /* IOVar action bits for id mapping */
    422 #define IOV_GET 0 /* Get an iovar */
    423 #define IOV_SET 1 /* Set an iovar */
    424 
    425 /* Varid to actionid mapping */
    426 #define IOV_GVAL(id)		((id) * 2)
    427 #define IOV_SVAL(id)		((id) * 2 + IOV_SET)
    428 #define IOV_ISSET(actionid)	((actionid & IOV_SET) == IOV_SET)
    429 #define IOV_ID(actionid)	(actionid >> 1)
    430 
    431 /* flags are per-driver based on driver attributes */
    432 
    433 extern const bcm_iovar_t *bcm_iovar_lookup(const bcm_iovar_t *table, const char *name);
    434 extern int bcm_iovar_lencheck(const bcm_iovar_t *table, void *arg, int len, bool set);
    435 #if defined(WLTINYDUMP) || defined(WLMSG_INFORM) || defined(WLMSG_ASSOC) || \
    436 	defined(WLMSG_PRPKT) || defined(WLMSG_WSEC)
    437 extern int bcm_format_ssid(char* buf, const uchar ssid[], uint ssid_len);
    438 #endif
    439 #endif	/* BCMDRIVER */
    440 
    441 /* Base type definitions */
    442 #define IOVT_VOID	0	/* no value (implictly set only) */
    443 #define IOVT_BOOL	1	/* any value ok (zero/nonzero) */
    444 #define IOVT_INT8	2	/* integer values are range-checked */
    445 #define IOVT_UINT8	3	/* unsigned int 8 bits */
    446 #define IOVT_INT16	4	/* int 16 bits */
    447 #define IOVT_UINT16	5	/* unsigned int 16 bits */
    448 #define IOVT_INT32	6	/* int 32 bits */
    449 #define IOVT_UINT32	7	/* unsigned int 32 bits */
    450 #define IOVT_BUFFER	8	/* buffer is size-checked as per minlen */
    451 #define BCM_IOVT_VALID(type) (((unsigned int)(type)) <= IOVT_BUFFER)
    452 
    453 /* Initializer for IOV type strings */
    454 #define BCM_IOV_TYPE_INIT { \
    455 	"void", \
    456 	"bool", \
    457 	"int8", \
    458 	"uint8", \
    459 	"int16", \
    460 	"uint16", \
    461 	"int32", \
    462 	"uint32", \
    463 	"buffer", \
    464 	"" }
    465 
    466 #define BCM_IOVT_IS_INT(type) (\
    467 	(type == IOVT_BOOL) || \
    468 	(type == IOVT_INT8) || \
    469 	(type == IOVT_UINT8) || \
    470 	(type == IOVT_INT16) || \
    471 	(type == IOVT_UINT16) || \
    472 	(type == IOVT_INT32) || \
    473 	(type == IOVT_UINT32))
    474 
    475 /* ** driver/apps-shared section ** */
    476 
    477 #define BCME_STRLEN 		64	/* Max string length for BCM errors */
    478 #define VALID_BCMERROR(e)  ((e <= 0) && (e >= BCME_LAST))
    479 
    480 
    481 /*
    482  * error codes could be added but the defined ones shouldn't be changed/deleted
    483  * these error codes are exposed to the user code
    484  * when ever a new error code is added to this list
    485  * please update errorstring table with the related error string and
    486  * update osl files with os specific errorcode map
    487 */
    488 
    489 #define BCME_OK				0	/* Success */
    490 #define BCME_ERROR			-1	/* Error generic */
    491 #define BCME_BADARG			-2	/* Bad Argument */
    492 #define BCME_BADOPTION			-3	/* Bad option */
    493 #define BCME_NOTUP			-4	/* Not up */
    494 #define BCME_NOTDOWN			-5	/* Not down */
    495 #define BCME_NOTAP			-6	/* Not AP */
    496 #define BCME_NOTSTA			-7	/* Not STA  */
    497 #define BCME_BADKEYIDX			-8	/* BAD Key Index */
    498 #define BCME_RADIOOFF 			-9	/* Radio Off */
    499 #define BCME_NOTBANDLOCKED		-10	/* Not  band locked */
    500 #define BCME_NOCLK			-11	/* No Clock */
    501 #define BCME_BADRATESET			-12	/* BAD Rate valueset */
    502 #define BCME_BADBAND			-13	/* BAD Band */
    503 #define BCME_BUFTOOSHORT		-14	/* Buffer too short */
    504 #define BCME_BUFTOOLONG			-15	/* Buffer too long */
    505 #define BCME_BUSY			-16	/* Busy */
    506 #define BCME_NOTASSOCIATED		-17	/* Not Associated */
    507 #define BCME_BADSSIDLEN			-18	/* Bad SSID len */
    508 #define BCME_OUTOFRANGECHAN		-19	/* Out of Range Channel */
    509 #define BCME_BADCHAN			-20	/* Bad Channel */
    510 #define BCME_BADADDR			-21	/* Bad Address */
    511 #define BCME_NORESOURCE			-22	/* Not Enough Resources */
    512 #define BCME_UNSUPPORTED		-23	/* Unsupported */
    513 #define BCME_BADLEN			-24	/* Bad length */
    514 #define BCME_NOTREADY			-25	/* Not Ready */
    515 #define BCME_EPERM			-26	/* Not Permitted */
    516 #define BCME_NOMEM			-27	/* No Memory */
    517 #define BCME_ASSOCIATED			-28	/* Associated */
    518 #define BCME_RANGE			-29	/* Not In Range */
    519 #define BCME_NOTFOUND			-30	/* Not Found */
    520 #define BCME_WME_NOT_ENABLED		-31	/* WME Not Enabled */
    521 #define BCME_TSPEC_NOTFOUND		-32	/* TSPEC Not Found */
    522 #define BCME_ACM_NOTSUPPORTED		-33	/* ACM Not Supported */
    523 #define BCME_NOT_WME_ASSOCIATION	-34	/* Not WME Association */
    524 #define BCME_SDIO_ERROR			-35	/* SDIO Bus Error */
    525 #define BCME_DONGLE_DOWN		-36	/* Dongle Not Accessible */
    526 #define BCME_VERSION			-37 	/* Incorrect version */
    527 #define BCME_TXFAIL			-38 	/* TX failure */
    528 #define BCME_RXFAIL			-39	/* RX failure */
    529 #define BCME_NODEVICE			-40 	/* Device not present */
    530 #define BCME_NMODE_DISABLED		-41 	/* NMODE disabled */
    531 #define BCME_NONRESIDENT		-42 /* access to nonresident overlay */
    532 #define BCME_SCANREJECT			-43 	/* reject scan request */
    533 #define BCME_USAGE_ERROR                -44     /* WLCMD usage error */
    534 #define BCME_IOCTL_ERROR                -45     /* WLCMD ioctl error */
    535 #define BCME_SERIAL_PORT_ERR            -46     /* RWL serial port error */
    536 #define BCME_LAST			BCME_SERIAL_PORT_ERR
    537 
    538 /* These are collection of BCME Error strings */
    539 #define BCMERRSTRINGTABLE {		\
    540 	"OK",				\
    541 	"Undefined error",		\
    542 	"Bad Argument",			\
    543 	"Bad Option",			\
    544 	"Not up",			\
    545 	"Not down",			\
    546 	"Not AP",			\
    547 	"Not STA",			\
    548 	"Bad Key Index",		\
    549 	"Radio Off",			\
    550 	"Not band locked",		\
    551 	"No clock",			\
    552 	"Bad Rate valueset",		\
    553 	"Bad Band",			\
    554 	"Buffer too short",		\
    555 	"Buffer too long",		\
    556 	"Busy",				\
    557 	"Not Associated",		\
    558 	"Bad SSID len",			\
    559 	"Out of Range Channel",		\
    560 	"Bad Channel",			\
    561 	"Bad Address",			\
    562 	"Not Enough Resources",		\
    563 	"Unsupported",			\
    564 	"Bad length",			\
    565 	"Not Ready",			\
    566 	"Not Permitted",		\
    567 	"No Memory",			\
    568 	"Associated",			\
    569 	"Not In Range",			\
    570 	"Not Found",			\
    571 	"WME Not Enabled",		\
    572 	"TSPEC Not Found",		\
    573 	"ACM Not Supported",		\
    574 	"Not WME Association",		\
    575 	"SDIO Bus Error",		\
    576 	"Dongle Not Accessible",	\
    577 	"Incorrect version",		\
    578 	"TX Failure",			\
    579 	"RX Failure",			\
    580 	"Device Not Present",		\
    581 	"NMODE Disabled",		\
    582 	"Nonresident overlay access", \
    583 	"Scan Rejected",		\
    584 	"WLCMD usage error",		\
    585 	"WLCMD ioctl error",		\
    586 	"RWL serial port error", 	\
    587 }
    588 
    589 #ifndef ABS
    590 #define	ABS(a)			(((a) < 0) ? -(a) : (a))
    591 #endif /* ABS */
    592 
    593 #ifndef MIN
    594 #define	MIN(a, b)		(((a) < (b)) ? (a) : (b))
    595 #endif /* MIN */
    596 
    597 #ifndef MAX
    598 #define	MAX(a, b)		(((a) > (b)) ? (a) : (b))
    599 #endif /* MAX */
    600 
    601 /* limit to [min, max] */
    602 #ifndef LIMIT_TO_RANGE
    603 #define LIMIT_TO_RANGE(x, min, max) \
    604 	((x) < (min) ? (min) : ((x) > (max) ? (max) : (x)))
    605 #endif /* LIMIT_TO_RANGE */
    606 
    607 /* limit to  max */
    608 #ifndef LIMIT_TO_MAX
    609 #define LIMIT_TO_MAX(x, max) \
    610 	(((x) > (max) ? (max) : (x)))
    611 #endif /* LIMIT_TO_MAX */
    612 
    613 /* limit to min */
    614 #ifndef LIMIT_TO_MIN
    615 #define LIMIT_TO_MIN(x, min) \
    616 	(((x) < (min) ? (min) : (x)))
    617 #endif /* LIMIT_TO_MIN */
    618 
    619 #define CEIL(x, y)		(((x) + ((y) - 1)) / (y))
    620 #define	ROUNDUP(x, y)		((((x) + ((y) - 1)) / (y)) * (y))
    621 #define	ISALIGNED(a, x)		(((uintptr)(a) & ((x) - 1)) == 0)
    622 #define ALIGN_ADDR(addr, boundary) (void *)(((uintptr)(addr) + (boundary) - 1) \
    623 	                                         & ~((boundary) - 1))
    624 #define ALIGN_SIZE(size, boundary) (((size) + (boundary) - 1) \
    625 	                                         & ~((boundary) - 1))
    626 #define	ISPOWEROF2(x)		((((x) - 1) & (x)) == 0)
    627 #define VALID_MASK(mask)	!((mask) & ((mask) + 1))
    628 
    629 #ifndef OFFSETOF
    630 #ifdef __ARMCC_VERSION
    631 /*
    632  * The ARM RVCT compiler complains when using OFFSETOF where a constant
    633  * expression is expected, such as an initializer for a static object.
    634  * offsetof from the runtime library doesn't have that problem.
    635  */
    636 #include <stddef.h>
    637 #define	OFFSETOF(type, member)	offsetof(type, member)
    638 #else
    639 #define	OFFSETOF(type, member)	((uint)(uintptr)&((type *)0)->member)
    640 #endif /* __ARMCC_VERSION */
    641 #endif /* OFFSETOF */
    642 
    643 #ifndef ARRAYSIZE
    644 #define ARRAYSIZE(a)		(sizeof(a) / sizeof(a[0]))
    645 #endif
    646 
    647 #ifndef ARRAYLAST     /* returns pointer to last array element */
    648 #define ARRAYLAST(a)		(&a[ARRAYSIZE(a)-1])
    649 #endif
    650 
    651 /* Reference a function; used to prevent a static function from being optimized out */
    652 extern void *_bcmutils_dummy_fn;
    653 #define REFERENCE_FUNCTION(f)	(_bcmutils_dummy_fn = (void *)(f))
    654 
    655 /* bit map related macros */
    656 #ifndef setbit
    657 #ifndef NBBY		    /* the BSD family defines NBBY */
    658 #define	NBBY	8	/* 8 bits per byte */
    659 #endif /* #ifndef NBBY */
    660 #ifdef BCMUTILS_BIT_MACROS_USE_FUNCS
    661 extern void setbit(void *array, uint bit);
    662 extern void clrbit(void *array, uint bit);
    663 extern bool isset(const void *array, uint bit);
    664 extern bool isclr(const void *array, uint bit);
    665 #else
    666 #define	setbit(a, i)	(((uint8 *)a)[(i) / NBBY] |= 1 << ((i) % NBBY))
    667 #define	clrbit(a, i)	(((uint8 *)a)[(i) / NBBY] &= ~(1 << ((i) % NBBY)))
    668 #define	isset(a, i)	(((const uint8 *)a)[(i) / NBBY] & (1 << ((i) % NBBY)))
    669 #define	isclr(a, i)	((((const uint8 *)a)[(i) / NBBY] & (1 << ((i) % NBBY))) == 0)
    670 #endif
    671 #endif /* setbit */
    672 
    673 #define	isbitset(a, i)	(((a) & (1 << (i))) != 0)
    674 
    675 #define	NBITS(type)	(sizeof(type) * 8)
    676 #define NBITVAL(nbits)	(1 << (nbits))
    677 #define MAXBITVAL(nbits)	((1 << (nbits)) - 1)
    678 #define	NBITMASK(nbits)	MAXBITVAL(nbits)
    679 #define MAXNBVAL(nbyte)	MAXBITVAL((nbyte) * 8)
    680 
    681 /* basic mux operation - can be optimized on several architectures */
    682 #define MUX(pred, true, false) ((pred) ? (true) : (false))
    683 
    684 /* modulo inc/dec - assumes x E [0, bound - 1] */
    685 #define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1)
    686 #define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1)
    687 
    688 /* modulo inc/dec, bound = 2^k */
    689 #define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1))
    690 #define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1))
    691 
    692 /* modulo add/sub - assumes x, y E [0, bound - 1] */
    693 #define MODADD(x, y, bound) \
    694     MUX((x) + (y) >= (bound), (x) + (y) - (bound), (x) + (y))
    695 #define MODSUB(x, y, bound) \
    696     MUX(((int)(x)) - ((int)(y)) < 0, (x) - (y) + (bound), (x) - (y))
    697 
    698 /* module add/sub, bound = 2^k */
    699 #define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1))
    700 #define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1))
    701 
    702 /* crc defines */
    703 #define CRC8_INIT_VALUE  0xff		/* Initial CRC8 checksum value */
    704 #define CRC8_GOOD_VALUE  0x9f		/* Good final CRC8 checksum value */
    705 #define CRC16_INIT_VALUE 0xffff		/* Initial CRC16 checksum value */
    706 #define CRC16_GOOD_VALUE 0xf0b8		/* Good final CRC16 checksum value */
    707 #define CRC32_INIT_VALUE 0xffffffff	/* Initial CRC32 checksum value */
    708 #define CRC32_GOOD_VALUE 0xdebb20e3	/* Good final CRC32 checksum value */
    709 
    710 /* use for direct output of MAC address in printf etc */
    711 #define MACF				"%02x:%02x:%02x:%02x:%02x:%02x"
    712 #define ETHERP_TO_MACF(ea)	((struct ether_addr *) (ea))->octet[0], \
    713 							((struct ether_addr *) (ea))->octet[1], \
    714 							((struct ether_addr *) (ea))->octet[2], \
    715 							((struct ether_addr *) (ea))->octet[3], \
    716 							((struct ether_addr *) (ea))->octet[4], \
    717 							((struct ether_addr *) (ea))->octet[5]
    718 
    719 #define ETHER_TO_MACF(ea) 	(ea).octet[0], \
    720 							(ea).octet[1], \
    721 							(ea).octet[2], \
    722 							(ea).octet[3], \
    723 							(ea).octet[4], \
    724 							(ea).octet[5]
    725 #if !defined(SIMPLE_MAC_PRINT)
    726 #define MACDBG "%02x:%02x:%02x:%02x:%02x:%02x"
    727 #define MAC2STRDBG(ea) (ea)[0], (ea)[1], (ea)[2], (ea)[3], (ea)[4], (ea)[5]
    728 #else
    729 #define MACDBG				"%02x:%02x:%02x"
    730 #define MAC2STRDBG(ea) (ea)[0], (ea)[4], (ea)[5]
    731 #endif /* SIMPLE_MAC_PRINT */
    732 
    733 /* bcm_format_flags() bit description structure */
    734 typedef struct bcm_bit_desc {
    735 	uint32	bit;
    736 	const char* name;
    737 } bcm_bit_desc_t;
    738 
    739 /* bcm_format_field */
    740 typedef struct bcm_bit_desc_ex {
    741 	uint32 mask;
    742 	const bcm_bit_desc_t *bitfield;
    743 } bcm_bit_desc_ex_t;
    744 
    745 
    746 /* tag_ID/length/value_buffer tuple */
    747 typedef struct bcm_tlv {
    748 	uint8	id;
    749 	uint8	len;
    750 	uint8	data[1];
    751 } bcm_tlv_t;
    752 
    753 /* Check that bcm_tlv_t fits into the given buflen */
    754 #define bcm_valid_tlv(elt, buflen) ((buflen) >= 2 && (int)(buflen) >= (int)(2 + (elt)->len))
    755 
    756 /* buffer length for ethernet address from bcm_ether_ntoa() */
    757 #define ETHER_ADDR_STR_LEN	18	/* 18-bytes of Ethernet address buffer length */
    758 
    759 /* crypto utility function */
    760 /* 128-bit xor: *dst = *src1 xor *src2. dst1, src1 and src2 may have any alignment */
    761 static INLINE void
    762 xor_128bit_block(const uint8 *src1, const uint8 *src2, uint8 *dst)
    763 {
    764 	if (
    765 #ifdef __i386__
    766 	    1 ||
    767 #endif
    768 	    (((uintptr)src1 | (uintptr)src2 | (uintptr)dst) & 3) == 0) {
    769 		/* ARM CM3 rel time: 1229 (727 if alignment check could be omitted) */
    770 		/* x86 supports unaligned.  This version runs 6x-9x faster on x86. */
    771 		((uint32 *)dst)[0] = ((const uint32 *)src1)[0] ^ ((const uint32 *)src2)[0];
    772 		((uint32 *)dst)[1] = ((const uint32 *)src1)[1] ^ ((const uint32 *)src2)[1];
    773 		((uint32 *)dst)[2] = ((const uint32 *)src1)[2] ^ ((const uint32 *)src2)[2];
    774 		((uint32 *)dst)[3] = ((const uint32 *)src1)[3] ^ ((const uint32 *)src2)[3];
    775 	} else {
    776 		/* ARM CM3 rel time: 4668 (4191 if alignment check could be omitted) */
    777 		int k;
    778 		for (k = 0; k < 16; k++)
    779 			dst[k] = src1[k] ^ src2[k];
    780 	}
    781 }
    782 
    783 /* externs */
    784 /* crc */
    785 extern uint8 hndcrc8(uint8 *p, uint nbytes, uint8 crc);
    786 extern uint16 hndcrc16(uint8 *p, uint nbytes, uint16 crc);
    787 extern uint32 hndcrc32(uint8 *p, uint nbytes, uint32 crc);
    788 
    789 /* format/print */
    790 #if defined(DHD_DEBUG) || defined(WLMSG_PRHDRS) || defined(WLMSG_PRPKT) || \
    791 	defined(WLMSG_ASSOC)
    792 /* print out the value a field has: fields may have 1-32 bits and may hold any value */
    793 extern int bcm_format_field(const bcm_bit_desc_ex_t *bd, uint32 field, char* buf, int len);
    794 /* print out which bits in flags are set */
    795 extern int bcm_format_flags(const bcm_bit_desc_t *bd, uint32 flags, char* buf, int len);
    796 #endif
    797 
    798 #if defined(DHD_DEBUG) || defined(WLMSG_PRHDRS) || defined(WLMSG_PRPKT) || \
    799 	defined(WLMSG_ASSOC) || defined(WLMEDIA_PEAKRATE)
    800 extern int bcm_format_hex(char *str, const void *bytes, int len);
    801 #endif
    802 
    803 extern const char *bcm_crypto_algo_name(uint algo);
    804 extern char *bcm_chipname(uint chipid, char *buf, uint len);
    805 extern char *bcm_brev_str(uint32 brev, char *buf);
    806 extern void printbig(char *buf);
    807 extern void prhex(const char *msg, uchar *buf, uint len);
    808 
    809 /* IE parsing */
    810 extern bcm_tlv_t *bcm_next_tlv(bcm_tlv_t *elt, int *buflen);
    811 extern bcm_tlv_t *bcm_parse_tlvs(void *buf, int buflen, uint key);
    812 extern bcm_tlv_t *bcm_parse_ordered_tlvs(void *buf, int buflen, uint key);
    813 
    814 /* bcmerror */
    815 extern const char *bcmerrorstr(int bcmerror);
    816 /* extern bcm_tlv_t *bcm_parse_tlvs(void *buf, int buflen, uint key); */
    817 
    818 /* multi-bool data type: set of bools, mbool is true if any is set */
    819 typedef uint32 mbool;
    820 #define mboolset(mb, bit)		((mb) |= (bit))		/* set one bool */
    821 #define mboolclr(mb, bit)		((mb) &= ~(bit))	/* clear one bool */
    822 #define mboolisset(mb, bit)		(((mb) & (bit)) != 0)	/* TRUE if one bool is set */
    823 #define	mboolmaskset(mb, mask, val)	((mb) = (((mb) & ~(mask)) | (val)))
    824 
    825 /* generic datastruct to help dump routines */
    826 struct fielddesc {
    827 	const char *nameandfmt;
    828 	uint32 	offset;
    829 	uint32 	len;
    830 };
    831 
    832 extern void bcm_binit(struct bcmstrbuf *b, char *buf, uint size);
    833 extern void bcm_bprhex(struct bcmstrbuf *b, const char *msg, bool newline, uint8 *buf, int len);
    834 
    835 extern void bcm_inc_bytes(uchar *num, int num_bytes, uint8 amount);
    836 extern int bcm_cmp_bytes(const uchar *arg1, const uchar *arg2, uint8 nbytes);
    837 extern void bcm_print_bytes(const char *name, const uchar *cdata, int len);
    838 
    839 typedef  uint32 (*bcmutl_rdreg_rtn)(void *arg0, uint arg1, uint32 offset);
    840 extern uint bcmdumpfields(bcmutl_rdreg_rtn func_ptr, void *arg0, uint arg1, struct fielddesc *str,
    841                           char *buf, uint32 bufsize);
    842 extern uint bcm_bitcount(uint8 *bitmap, uint bytelength);
    843 
    844 extern int bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...);
    845 
    846 /* power conversion */
    847 extern uint16 bcm_qdbm_to_mw(uint8 qdbm);
    848 extern uint8 bcm_mw_to_qdbm(uint16 mw);
    849 extern uint bcm_mkiovar(char *name, char *data, uint datalen, char *buf, uint len);
    850 
    851 unsigned int process_nvram_vars(char *varbuf, unsigned int len);
    852 extern bcm_tlv_t *find_vendor_ie(void *tlvs, int tlvs_len,
    853 	const char *voui, uint8 *type, int type_len);
    854 
    855 /* calculate a * b + c */
    856 extern void bcm_uint64_multiple_add(uint32* r_high, uint32* r_low, uint32 a, uint32 b, uint32 c);
    857 /* calculate a / b */
    858 extern void bcm_uint64_divide(uint32* r, uint32 a_high, uint32 a_low, uint32 b);
    859 
    860 #ifdef __cplusplus
    861 	}
    862 #endif
    863 
    864 #endif	/* _bcmutils_h_ */
    865