519 lines
17 KiB
C
519 lines
17 KiB
C
/*
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* Copyright (c) 2010 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _bcmutils_h_
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#define _bcmutils_h_
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/* Buffer structure for collecting string-formatted data
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* using bcm_bprintf() API.
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* Use bcm_binit() to initialize before use
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*/
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struct bcmstrbuf {
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char *buf; /* pointer to current position in origbuf */
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unsigned int size; /* current (residual) size in bytes */
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char *origbuf; /* unmodified pointer to orignal buffer */
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unsigned int origsize; /* unmodified orignal buffer size in bytes */
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};
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/* ** driver-only section ** */
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#define GPIO_PIN_NOTDEFINED 0x20 /* Pin not defined */
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/*
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* Spin at most 'us' microseconds while 'exp' is true.
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* Caller should explicitly test 'exp' when this completes
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* and take appropriate error action if 'exp' is still true.
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*/
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#define SPINWAIT(exp, us) { \
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uint countdown = (us) + 9; \
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while ((exp) && (countdown >= 10)) {\
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udelay(10); \
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countdown -= 10; \
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} \
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}
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/* osl multi-precedence packet queue */
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#ifndef PKTQ_LEN_DEFAULT
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#define PKTQ_LEN_DEFAULT 128 /* Max 128 packets */
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#endif
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#ifndef PKTQ_MAX_PREC
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#define PKTQ_MAX_PREC 16 /* Maximum precedence levels */
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#endif
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typedef struct pktq_prec {
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struct sk_buff *head; /* first packet to dequeue */
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struct sk_buff *tail; /* last packet to dequeue */
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u16 len; /* number of queued packets */
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u16 max; /* maximum number of queued packets */
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} pktq_prec_t;
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/* multi-priority pkt queue */
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struct pktq {
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u16 num_prec; /* number of precedences in use */
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u16 hi_prec; /* rapid dequeue hint (>= highest non-empty prec) */
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u16 max; /* total max packets */
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u16 len; /* total number of packets */
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/* q array must be last since # of elements can be either PKTQ_MAX_PREC or 1 */
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struct pktq_prec q[PKTQ_MAX_PREC];
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};
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/* simple, non-priority pkt queue */
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struct spktq {
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u16 num_prec; /* number of precedences in use (always 1) */
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u16 hi_prec; /* rapid dequeue hint (>= highest non-empty prec) */
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u16 max; /* total max packets */
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u16 len; /* total number of packets */
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/* q array must be last since # of elements can be either PKTQ_MAX_PREC or 1 */
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struct pktq_prec q[1];
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};
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#define PKTQ_PREC_ITER(pq, prec) for (prec = (pq)->num_prec - 1; prec >= 0; prec--)
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/* fn(pkt, arg). return true if pkt belongs to if */
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typedef bool(*ifpkt_cb_t) (void *, int);
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/* forward definition of ether_addr structure used by some function prototypes */
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struct ether_addr;
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extern int ether_isbcast(const void *ea);
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extern int ether_isnulladdr(const void *ea);
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/* operations on a specific precedence in packet queue */
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#define pktq_psetmax(pq, prec, _max) ((pq)->q[prec].max = (_max))
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#define pktq_plen(pq, prec) ((pq)->q[prec].len)
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#define pktq_pavail(pq, prec) ((pq)->q[prec].max - (pq)->q[prec].len)
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#define pktq_pfull(pq, prec) ((pq)->q[prec].len >= (pq)->q[prec].max)
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#define pktq_pempty(pq, prec) ((pq)->q[prec].len == 0)
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#define pktq_ppeek(pq, prec) ((pq)->q[prec].head)
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#define pktq_ppeek_tail(pq, prec) ((pq)->q[prec].tail)
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extern struct sk_buff *pktq_penq(struct pktq *pq, int prec,
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struct sk_buff *p);
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extern struct sk_buff *pktq_penq_head(struct pktq *pq, int prec,
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struct sk_buff *p);
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extern struct sk_buff *pktq_pdeq(struct pktq *pq, int prec);
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extern struct sk_buff *pktq_pdeq_tail(struct pktq *pq, int prec);
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/* Empty the queue at particular precedence level */
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#ifdef BRCM_FULLMAC
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extern void pktq_pflush(struct osl_info *osh, struct pktq *pq, int prec,
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bool dir);
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#else
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extern void pktq_pflush(struct osl_info *osh, struct pktq *pq, int prec,
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bool dir, ifpkt_cb_t fn, int arg);
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#endif /* BRCM_FULLMAC */
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/* operations on a set of precedences in packet queue */
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extern int pktq_mlen(struct pktq *pq, uint prec_bmp);
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extern struct sk_buff *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
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/* operations on packet queue as a whole */
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#define pktq_len(pq) ((int)(pq)->len)
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#define pktq_max(pq) ((int)(pq)->max)
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#define pktq_avail(pq) ((int)((pq)->max - (pq)->len))
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#define pktq_full(pq) ((pq)->len >= (pq)->max)
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#define pktq_empty(pq) ((pq)->len == 0)
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/* operations for single precedence queues */
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#define pktenq(pq, p) pktq_penq(((struct pktq *)pq), 0, (p))
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#define pktenq_head(pq, p) pktq_penq_head(((struct pktq *)pq), 0, (p))
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#define pktdeq(pq) pktq_pdeq(((struct pktq *)pq), 0)
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#define pktdeq_tail(pq) pktq_pdeq_tail(((struct pktq *)pq), 0)
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#define pktqinit(pq, len) pktq_init(((struct pktq *)pq), 1, len)
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extern void pktq_init(struct pktq *pq, int num_prec, int max_len);
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/* prec_out may be NULL if caller is not interested in return value */
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extern struct sk_buff *pktq_peek_tail(struct pktq *pq, int *prec_out);
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#ifdef BRCM_FULLMAC
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extern void pktq_flush(struct osl_info *osh, struct pktq *pq, bool dir);
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#else
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extern void pktq_flush(struct osl_info *osh, struct pktq *pq, bool dir,
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ifpkt_cb_t fn, int arg);
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#endif
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/* externs */
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/* packet */
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extern uint pktfrombuf(struct osl_info *osh, struct sk_buff *p,
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uint offset, int len, unsigned char *buf);
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extern uint pkttotlen(struct osl_info *osh, struct sk_buff *p);
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/* ethernet address */
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extern int bcm_ether_atoe(char *p, struct ether_addr *ea);
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/* ip address */
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struct ipv4_addr;
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extern char *bcm_ip_ntoa(struct ipv4_addr *ia, char *buf);
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/* variable access */
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extern char *getvar(char *vars, const char *name);
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extern int getintvar(char *vars, const char *name);
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#ifdef BCMDBG
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extern void prpkt(const char *msg, struct osl_info *osh,
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struct sk_buff *p0);
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#endif /* BCMDBG */
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#define bcm_perf_enable()
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#define bcmstats(fmt)
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#define bcmlog(fmt, a1, a2)
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#define bcmdumplog(buf, size) (*buf = '\0')
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#define bcmdumplogent(buf, idx) -1
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#define bcmtslog(tstamp, fmt, a1, a2)
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#define bcmprinttslogs()
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#define bcmprinttstamp(us)
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/* Support for sharing code across in-driver iovar implementations.
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* The intent is that a driver use this structure to map iovar names
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* to its (private) iovar identifiers, and the lookup function to
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* find the entry. Macros are provided to map ids and get/set actions
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* into a single number space for a switch statement.
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*/
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/* iovar structure */
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typedef struct bcm_iovar {
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const char *name; /* name for lookup and display */
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u16 varid; /* id for switch */
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u16 flags; /* driver-specific flag bits */
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u16 type; /* base type of argument */
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u16 minlen; /* min length for buffer vars */
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} bcm_iovar_t;
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/* varid definitions are per-driver, may use these get/set bits */
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/* IOVar action bits for id mapping */
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#define IOV_GET 0 /* Get an iovar */
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#define IOV_SET 1 /* Set an iovar */
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/* Varid to actionid mapping */
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#define IOV_GVAL(id) ((id)*2)
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#define IOV_SVAL(id) (((id)*2)+IOV_SET)
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#define IOV_ISSET(actionid) ((actionid & IOV_SET) == IOV_SET)
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#define IOV_ID(actionid) (actionid >> 1)
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/* flags are per-driver based on driver attributes */
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extern const bcm_iovar_t *bcm_iovar_lookup(const bcm_iovar_t *table,
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const char *name);
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extern int bcm_iovar_lencheck(const bcm_iovar_t *table, void *arg,
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int len, bool set);
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/* Base type definitions */
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#define IOVT_VOID 0 /* no value (implictly set only) */
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#define IOVT_BOOL 1 /* any value ok (zero/nonzero) */
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#define IOVT_INT8 2 /* integer values are range-checked */
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#define IOVT_UINT8 3 /* unsigned int 8 bits */
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#define IOVT_INT16 4 /* int 16 bits */
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#define IOVT_UINT16 5 /* unsigned int 16 bits */
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#define IOVT_INT32 6 /* int 32 bits */
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#define IOVT_UINT32 7 /* unsigned int 32 bits */
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#define IOVT_BUFFER 8 /* buffer is size-checked as per minlen */
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#define BCM_IOVT_VALID(type) (((unsigned int)(type)) <= IOVT_BUFFER)
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/* Initializer for IOV type strings */
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#define BCM_IOV_TYPE_INIT { \
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"void", \
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"bool", \
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"s8", \
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"u8", \
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"s16", \
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"u16", \
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"s32", \
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"u32", \
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"buffer", \
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"" }
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#define BCM_IOVT_IS_INT(type) (\
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(type == IOVT_BOOL) || \
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(type == IOVT_INT8) || \
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(type == IOVT_UINT8) || \
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(type == IOVT_INT16) || \
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(type == IOVT_UINT16) || \
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(type == IOVT_INT32) || \
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(type == IOVT_UINT32))
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/* ** driver/apps-shared section ** */
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#define BCME_STRLEN 64 /* Max string length for BCM errors */
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#define VALID_BCMERROR(e) ((e <= 0) && (e >= BCME_LAST))
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/*
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* error codes could be added but the defined ones shouldn't be changed/deleted
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* these error codes are exposed to the user code
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* when ever a new error code is added to this list
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* please update errorstring table with the related error string and
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* update osl files with os specific errorcode map
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*/
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#define BCME_OK 0 /* Success */
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#define BCME_ERROR -1 /* Error generic */
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#define BCME_BADARG -2 /* Bad Argument */
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#define BCME_BADOPTION -3 /* Bad option */
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#define BCME_NOTUP -4 /* Not up */
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#define BCME_NOTDOWN -5 /* Not down */
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#define BCME_NOTAP -6 /* Not AP */
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#define BCME_NOTSTA -7 /* Not STA */
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#define BCME_BADKEYIDX -8 /* BAD Key Index */
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#define BCME_RADIOOFF -9 /* Radio Off */
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#define BCME_NOTBANDLOCKED -10 /* Not band locked */
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#define BCME_NOCLK -11 /* No Clock */
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#define BCME_BADRATESET -12 /* BAD Rate valueset */
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#define BCME_BADBAND -13 /* BAD Band */
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#define BCME_BUFTOOSHORT -14 /* Buffer too short */
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#define BCME_BUFTOOLONG -15 /* Buffer too long */
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#define BCME_BUSY -16 /* Busy */
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#define BCME_NOTASSOCIATED -17 /* Not Associated */
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#define BCME_BADSSIDLEN -18 /* Bad SSID len */
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#define BCME_OUTOFRANGECHAN -19 /* Out of Range Channel */
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#define BCME_BADCHAN -20 /* Bad Channel */
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#define BCME_BADADDR -21 /* Bad Address */
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#define BCME_NORESOURCE -22 /* Not Enough Resources */
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#define BCME_UNSUPPORTED -23 /* Unsupported */
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#define BCME_BADLEN -24 /* Bad length */
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#define BCME_NOTREADY -25 /* Not Ready */
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#define BCME_EPERM -26 /* Not Permitted */
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#define BCME_NOMEM -27 /* No Memory */
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#define BCME_ASSOCIATED -28 /* Associated */
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#define BCME_RANGE -29 /* Not In Range */
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#define BCME_NOTFOUND -30 /* Not Found */
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#define BCME_WME_NOT_ENABLED -31 /* WME Not Enabled */
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#define BCME_TSPEC_NOTFOUND -32 /* TSPEC Not Found */
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#define BCME_ACM_NOTSUPPORTED -33 /* ACM Not Supported */
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#define BCME_NOT_WME_ASSOCIATION -34 /* Not WME Association */
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#define BCME_SDIO_ERROR -35 /* SDIO Bus Error */
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#define BCME_DONGLE_DOWN -36 /* Dongle Not Accessible */
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#define BCME_VERSION -37 /* Incorrect version */
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#define BCME_TXFAIL -38 /* TX failure */
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#define BCME_RXFAIL -39 /* RX failure */
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#define BCME_NODEVICE -40 /* Device not present */
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#define BCME_NMODE_DISABLED -41 /* NMODE disabled */
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#define BCME_NONRESIDENT -42 /* access to nonresident overlay */
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#define BCME_LAST BCME_NONRESIDENT
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/* These are collection of BCME Error strings */
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#define BCMERRSTRINGTABLE { \
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"OK", \
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"Undefined error", \
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"Bad Argument", \
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"Bad Option", \
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"Not up", \
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"Not down", \
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"Not AP", \
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"Not STA", \
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"Bad Key Index", \
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"Radio Off", \
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"Not band locked", \
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"No clock", \
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"Bad Rate valueset", \
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"Bad Band", \
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"Buffer too short", \
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"Buffer too long", \
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"Busy", \
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"Not Associated", \
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"Bad SSID len", \
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"Out of Range Channel", \
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"Bad Channel", \
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"Bad Address", \
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"Not Enough Resources", \
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"Unsupported", \
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"Bad length", \
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"Not Ready", \
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"Not Permitted", \
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"No Memory", \
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"Associated", \
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"Not In Range", \
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"Not Found", \
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"WME Not Enabled", \
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"TSPEC Not Found", \
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"ACM Not Supported", \
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"Not WME Association", \
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"SDIO Bus Error", \
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"Dongle Not Accessible", \
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"Incorrect version", \
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"TX Failure", \
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"RX Failure", \
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"Device Not Present", \
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"NMODE Disabled", \
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"Nonresident overlay access", \
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}
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#ifndef ABS
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#define ABS(a) (((a) < 0) ? -(a) : (a))
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#endif /* ABS */
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#define CEIL(x, y) (((x) + ((y)-1)) / (y))
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#define ISPOWEROF2(x) ((((x)-1)&(x)) == 0)
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/* map physical to virtual I/O */
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#if !defined(CONFIG_MMC_MSM7X00A)
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#define REG_MAP(pa, size) ioremap_nocache((unsigned long)(pa), \
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(unsigned long)(size))
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#else
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#define REG_MAP(pa, size) (void *)(0)
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#endif
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/* Register operations */
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#define AND_REG(osh, r, v) W_REG(osh, (r), R_REG(osh, r) & (v))
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#define OR_REG(osh, r, v) W_REG(osh, (r), R_REG(osh, r) | (v))
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#define SET_REG(osh, r, mask, val) \
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W_REG((osh), (r), ((R_REG((osh), r) & ~(mask)) | (val)))
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#ifndef setbit
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#ifndef NBBY /* the BSD family defines NBBY */
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#define NBBY 8 /* 8 bits per byte */
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#endif /* #ifndef NBBY */
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#define setbit(a, i) (((u8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY))
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#define clrbit(a, i) (((u8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
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#define isset(a, i) (((const u8 *)a)[(i)/NBBY] & (1<<((i)%NBBY)))
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#define isclr(a, i) ((((const u8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
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#endif /* setbit */
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#define NBITS(type) (sizeof(type) * 8)
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#define NBITVAL(nbits) (1 << (nbits))
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#define MAXBITVAL(nbits) ((1 << (nbits)) - 1)
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#define NBITMASK(nbits) MAXBITVAL(nbits)
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#define MAXNBVAL(nbyte) MAXBITVAL((nbyte) * 8)
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/* basic mux operation - can be optimized on several architectures */
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#define MUX(pred, true, false) ((pred) ? (true) : (false))
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/* modulo inc/dec - assumes x E [0, bound - 1] */
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#define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1)
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#define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1)
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/* modulo inc/dec, bound = 2^k */
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#define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1))
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#define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1))
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/* modulo add/sub - assumes x, y E [0, bound - 1] */
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#define MODADD(x, y, bound) \
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MUX((x) + (y) >= (bound), (x) + (y) - (bound), (x) + (y))
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#define MODSUB(x, y, bound) \
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MUX(((int)(x)) - ((int)(y)) < 0, (x) - (y) + (bound), (x) - (y))
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/* module add/sub, bound = 2^k */
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#define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1))
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#define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1))
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/* crc defines */
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#define CRC8_INIT_VALUE 0xff /* Initial CRC8 checksum value */
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#define CRC8_GOOD_VALUE 0x9f /* Good final CRC8 checksum value */
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#define CRC16_INIT_VALUE 0xffff /* Initial CRC16 checksum value */
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#define CRC16_GOOD_VALUE 0xf0b8 /* Good final CRC16 checksum value */
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/* bcm_format_flags() bit description structure */
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typedef struct bcm_bit_desc {
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u32 bit;
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const char *name;
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} bcm_bit_desc_t;
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/* tag_ID/length/value_buffer tuple */
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typedef struct bcm_tlv {
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u8 id;
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|
u8 len;
|
|
u8 data[1];
|
|
} bcm_tlv_t;
|
|
|
|
/* Check that bcm_tlv_t fits into the given buflen */
|
|
#define bcm_valid_tlv(elt, buflen) ((buflen) >= 2 && (int)(buflen) >= (int)(2 + (elt)->len))
|
|
|
|
#define ETHER_ADDR_STR_LEN 18 /* 18-bytes of Ethernet address buffer length */
|
|
|
|
/* crypto utility function */
|
|
/* 128-bit xor: *dst = *src1 xor *src2. dst1, src1 and src2 may have any alignment */
|
|
static inline void
|
|
xor_128bit_block(const u8 *src1, const u8 *src2, u8 *dst) {
|
|
if (
|
|
#ifdef __i386__
|
|
1 ||
|
|
#endif
|
|
(((unsigned long) src1 | (unsigned long) src2 | (unsigned long) dst) &
|
|
3) == 0) {
|
|
/* ARM CM3 rel time: 1229 (727 if alignment check could be omitted) */
|
|
/* x86 supports unaligned. This version runs 6x-9x faster on x86. */
|
|
((u32 *) dst)[0] =
|
|
((const u32 *)src1)[0] ^ ((const u32 *)
|
|
src2)[0];
|
|
((u32 *) dst)[1] =
|
|
((const u32 *)src1)[1] ^ ((const u32 *)
|
|
src2)[1];
|
|
((u32 *) dst)[2] =
|
|
((const u32 *)src1)[2] ^ ((const u32 *)
|
|
src2)[2];
|
|
((u32 *) dst)[3] =
|
|
((const u32 *)src1)[3] ^ ((const u32 *)
|
|
src2)[3];
|
|
} else {
|
|
/* ARM CM3 rel time: 4668 (4191 if alignment check could be omitted) */
|
|
int k;
|
|
for (k = 0; k < 16; k++)
|
|
dst[k] = src1[k] ^ src2[k];
|
|
}
|
|
}
|
|
|
|
/* externs */
|
|
/* crc */
|
|
extern u8 hndcrc8(u8 *p, uint nbytes, u8 crc);
|
|
extern u16 hndcrc16(u8 *p, uint nbytes, u16 crc);
|
|
/* format/print */
|
|
#if defined(BCMDBG)
|
|
extern int bcm_format_flags(const bcm_bit_desc_t *bd, u32 flags,
|
|
char *buf, int len);
|
|
extern int bcm_format_hex(char *str, const void *bytes, int len);
|
|
#endif
|
|
extern char *bcm_chipname(uint chipid, char *buf, uint len);
|
|
extern void prhex(const char *msg, unsigned char *buf, uint len);
|
|
|
|
extern bcm_tlv_t *bcm_parse_tlvs(void *buf, int buflen,
|
|
uint key);
|
|
/* bcmerror */
|
|
extern const char *bcmerrorstr(int bcmerror);
|
|
|
|
/* multi-bool data type: set of bools, mbool is true if any is set */
|
|
typedef u32 mbool;
|
|
#define mboolset(mb, bit) ((mb) |= (bit)) /* set one bool */
|
|
#define mboolclr(mb, bit) ((mb) &= ~(bit)) /* clear one bool */
|
|
#define mboolisset(mb, bit) (((mb) & (bit)) != 0) /* true if one bool is set */
|
|
#define mboolmaskset(mb, mask, val) ((mb) = (((mb) & ~(mask)) | (val)))
|
|
|
|
/* power conversion */
|
|
extern u16 bcm_qdbm_to_mw(u8 qdbm);
|
|
extern u8 bcm_mw_to_qdbm(u16 mw);
|
|
|
|
/* generic datastruct to help dump routines */
|
|
struct fielddesc {
|
|
const char *nameandfmt;
|
|
u32 offset;
|
|
u32 len;
|
|
};
|
|
|
|
extern void bcm_binit(struct bcmstrbuf *b, char *buf, uint size);
|
|
extern int bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...);
|
|
|
|
typedef u32(*bcmutl_rdreg_rtn) (void *arg0, uint arg1,
|
|
u32 offset);
|
|
|
|
extern uint bcm_mkiovar(char *name, char *data, uint datalen, char *buf,
|
|
uint len);
|
|
extern uint bcm_bitcount(u8 *bitmap, uint bytelength);
|
|
|
|
#endif /* _bcmutils_h_ */
|