diff options
Diffstat (limited to 'drivers/staging/brcm80211/include/brcmu_utils.h')
| -rw-r--r-- | drivers/staging/brcm80211/include/brcmu_utils.h | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/drivers/staging/brcm80211/include/brcmu_utils.h b/drivers/staging/brcm80211/include/brcmu_utils.h deleted file mode 100644 index 2d54cc5..0000000 --- a/drivers/staging/brcm80211/include/brcmu_utils.h +++ /dev/null @@ -1,301 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef _BRCMU_UTILS_H_ -#define _BRCMU_UTILS_H_ - -#include <linux/skbuff.h> - -/* Buffer structure for collecting string-formatted data -* using brcmu_bprintf() API. -* Use brcmu_binit() to initialize before use -*/ - -struct brcmu_strbuf { - char *buf; /* pointer to current position in origbuf */ - unsigned int size; /* current (residual) size in bytes */ - char *origbuf; /* unmodified pointer to orignal buffer */ - unsigned int origsize; /* unmodified orignal buffer size in bytes */ -}; - -/* - * Spin at most 'us' microseconds while 'exp' is true. - * Caller should explicitly test 'exp' when this completes - * and take appropriate error action if 'exp' is still true. - */ -#define SPINWAIT(exp, us) { \ - uint countdown = (us) + 9; \ - while ((exp) && (countdown >= 10)) {\ - udelay(10); \ - countdown -= 10; \ - } \ -} - -/* osl multi-precedence packet queue */ -#ifndef PKTQ_LEN_DEFAULT -#define PKTQ_LEN_DEFAULT 128 /* Max 128 packets */ -#endif -#ifndef PKTQ_MAX_PREC -#define PKTQ_MAX_PREC 16 /* Maximum precedence levels */ -#endif - -struct pktq_prec { - struct sk_buff *head; /* first packet to dequeue */ - struct sk_buff *tail; /* last packet to dequeue */ - u16 len; /* number of queued packets */ - u16 max; /* maximum number of queued packets */ -}; - -/* multi-priority pkt queue */ -struct pktq { - u16 num_prec; /* number of precedences in use */ - u16 hi_prec; /* rapid dequeue hint (>= highest non-empty prec) */ - u16 max; /* total max packets */ - u16 len; /* total number of packets */ - /* - * q array must be last since # of elements can be either - * PKTQ_MAX_PREC or 1 - */ - struct pktq_prec q[PKTQ_MAX_PREC]; -}; - -/* fn(pkt, arg). return true if pkt belongs to if */ -typedef bool(*ifpkt_cb_t) (struct sk_buff *, void *); - -/* operations on a specific precedence in packet queue */ - -#define pktq_psetmax(pq, prec, _max) ((pq)->q[prec].max = (_max)) -#define pktq_plen(pq, prec) ((pq)->q[prec].len) -#define pktq_pavail(pq, prec) ((pq)->q[prec].max - (pq)->q[prec].len) -#define pktq_pfull(pq, prec) ((pq)->q[prec].len >= (pq)->q[prec].max) -#define pktq_pempty(pq, prec) ((pq)->q[prec].len == 0) - -#define pktq_ppeek(pq, prec) ((pq)->q[prec].head) -#define pktq_ppeek_tail(pq, prec) ((pq)->q[prec].tail) - -extern struct sk_buff *brcmu_pktq_penq(struct pktq *pq, int prec, - struct sk_buff *p); -extern struct sk_buff *brcmu_pktq_penq_head(struct pktq *pq, int prec, - struct sk_buff *p); -extern struct sk_buff *brcmu_pktq_pdeq(struct pktq *pq, int prec); -extern struct sk_buff *brcmu_pktq_pdeq_tail(struct pktq *pq, int prec); - -/* packet primitives */ -extern struct sk_buff *brcmu_pkt_buf_get_skb(uint len); -extern void brcmu_pkt_buf_free_skb(struct sk_buff *skb); - -/* Empty the queue at particular precedence level */ -extern void brcmu_pktq_pflush(struct pktq *pq, int prec, - bool dir, ifpkt_cb_t fn, void *arg); - -/* operations on a set of precedences in packet queue */ - -extern int brcmu_pktq_mlen(struct pktq *pq, uint prec_bmp); -extern struct sk_buff *brcmu_pktq_mdeq(struct pktq *pq, uint prec_bmp, - int *prec_out); - -/* operations on packet queue as a whole */ - -#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) - -/* operations for single precedence queues */ -#define pktenq(pq, p) brcmu_pktq_penq(((struct pktq *)pq), 0, (p)) -#define pktenq_head(pq, p)\ - brcmu_pktq_penq_head(((struct pktq *)pq), 0, (p)) -#define pktdeq(pq) brcmu_pktq_pdeq(((struct pktq *)pq), 0) -#define pktdeq_tail(pq) brcmu_pktq_pdeq_tail(((struct pktq *)pq), 0) -#define pktqinit(pq, len) brcmu_pktq_init(((struct pktq *)pq), 1, len) - -extern void brcmu_pktq_init(struct pktq *pq, int num_prec, int max_len); -/* prec_out may be NULL if caller is not interested in return value */ -extern struct sk_buff *brcmu_pktq_peek_tail(struct pktq *pq, int *prec_out); -extern void brcmu_pktq_flush(struct pktq *pq, bool dir, - ifpkt_cb_t fn, void *arg); - -/* externs */ -/* packet */ -extern uint brcmu_pktfrombuf(struct sk_buff *p, - uint offset, int len, unsigned char *buf); -extern uint brcmu_pkttotlen(struct sk_buff *p); - -/* ethernet address */ -extern int brcmu_ether_atoe(char *p, u8 *ea); - -/* ip address */ -struct ipv4_addr; - -#ifdef BCMDBG -extern void brcmu_prpkt(const char *msg, struct sk_buff *p0); -#else -#define brcmu_prpkt(a, b) -#endif /* BCMDBG */ - -/* Support for sharing code across in-driver iovar implementations. - * The intent is that a driver use this structure to map iovar names - * to its (private) iovar identifiers, and the lookup function to - * find the entry. Macros are provided to map ids and get/set actions - * into a single number space for a switch statement. - */ - -/* iovar structure */ -struct brcmu_iovar { - const char *name; /* name for lookup and display */ - u16 varid; /* id for switch */ - u16 flags; /* driver-specific flag bits */ - u16 type; /* base type of argument */ - u16 minlen; /* min length for buffer vars */ -}; - -/* varid definitions are per-driver, may use these get/set bits */ - -/* IOVar action bits for id mapping */ -#define IOV_GET 0 /* Get an iovar */ -#define IOV_SET 1 /* Set an iovar */ - -/* Varid to actionid mapping */ -#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 struct -brcmu_iovar *brcmu_iovar_lookup(const struct brcmu_iovar *table, - const char *name); -extern int brcmu_iovar_lencheck(const struct brcmu_iovar *table, void *arg, - int len, bool set); - -/* Base type definitions */ -#define IOVT_VOID 0 /* no value (implictly set only) */ -#define IOVT_BOOL 1 /* any value ok (zero/nonzero) */ -#define IOVT_INT8 2 /* integer values are range-checked */ -#define IOVT_UINT8 3 /* unsigned int 8 bits */ -#define IOVT_INT16 4 /* int 16 bits */ -#define IOVT_UINT16 5 /* unsigned int 16 bits */ -#define IOVT_INT32 6 /* int 32 bits */ -#define IOVT_UINT32 7 /* unsigned int 32 bits */ -#define IOVT_BUFFER 8 /* buffer is size-checked as per minlen */ -#define BCM_IOVT_VALID(type) (((unsigned int)(type)) <= IOVT_BUFFER) - -/* ** driver/apps-shared section ** */ - -#define BCME_STRLEN 64 /* Max string length for BCM errors */ - -#ifndef ABS -#define ABS(a) (((a) < 0) ? -(a) : (a)) -#endif /* ABS */ - -#define CEIL(x, y) (((x) + ((y)-1)) / (y)) -#define ISPOWEROF2(x) ((((x)-1)&(x)) == 0) - -/* map physical to virtual I/O */ -#define REG_MAP(pa, size) ioremap_nocache((unsigned long)(pa), \ - (unsigned long)(size)) - -/* the largest reasonable packet buffer driver uses for ethernet MTU in bytes */ -#define PKTBUFSZ 2048 - -#define OSL_SYSUPTIME() ((u32)jiffies * (1000 / HZ)) - -#ifndef setbit -#ifndef NBBY /* the BSD family defines NBBY */ -#define NBBY 8 /* 8 bits per byte */ -#endif /* #ifndef NBBY */ -#define setbit(a, i) (((u8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY)) -#define clrbit(a, i) (((u8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) -#define isset(a, i) (((const u8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) -#define isclr(a, i) ((((const u8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) -#endif /* setbit */ - -#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) - -/* basic mux operation - can be optimized on several architectures */ -#define MUX(pred, true, false) ((pred) ? (true) : (false)) - -/* modulo inc/dec - assumes x E [0, bound - 1] */ -#define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1) -#define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1) - -/* modulo inc/dec, bound = 2^k */ -#define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1)) -#define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1)) - -/* modulo add/sub - assumes x, y E [0, 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)) - -/* module add/sub, bound = 2^k */ -#define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1)) -#define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1)) - -/* crc defines */ -#define CRC8_INIT_VALUE 0xff /* Initial CRC8 checksum value */ -#define CRC8_GOOD_VALUE 0x9f /* Good final CRC8 checksum value */ -#define CRC16_INIT_VALUE 0xffff /* Initial CRC16 checksum value */ -#define CRC16_GOOD_VALUE 0xf0b8 /* Good final CRC16 checksum value */ - -/* brcmu_format_flags() bit description structure */ -struct brcmu_bit_desc { - u32 bit; - const char *name; -}; - -/* tag_ID/length/value_buffer tuple */ -struct brcmu_tlv { - u8 id; - u8 len; - u8 data[1]; -}; - -#define ETHER_ADDR_STR_LEN 18 /* 18-bytes of Ethernet address buffer length */ - -/* externs */ -/* crc */ -extern u8 brcmu_crc8(u8 *p, uint nbytes, u8 crc); - -/* format/print */ -#if defined(BCMDBG) -extern int brcmu_format_flags(const struct brcmu_bit_desc *bd, u32 flags, - char *buf, int len); -extern int brcmu_format_hex(char *str, const void *bytes, int len); -#endif - -extern char *brcmu_chipname(uint chipid, char *buf, uint len); - -extern struct brcmu_tlv *brcmu_parse_tlvs(void *buf, int buflen, - uint key); - -/* power conversion */ -extern u16 brcmu_qdbm_to_mw(u8 qdbm); -extern u8 brcmu_mw_to_qdbm(u16 mw); - -extern void brcmu_binit(struct brcmu_strbuf *b, char *buf, uint size); -extern int brcmu_bprintf(struct brcmu_strbuf *b, const char *fmt, ...); - -extern uint brcmu_mkiovar(char *name, char *data, uint datalen, - char *buf, uint len); -extern uint brcmu_bitcount(u8 *bitmap, uint bytelength); - -#endif /* _BRCMU_UTILS_H_ */ |
