210 lines
7.1 KiB
C
210 lines
7.1 KiB
C
/* $NetBSD: lancevar.h,v 1.10 2005/12/11 12:21:27 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
|
|
* Simulation Facility, NASA Ames Research Center.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/* $FreeBSD$ */
|
|
|
|
#ifndef _DEV_LE_LANCEVAR_H_
|
|
#define _DEV_LE_LANCEVAR_H_
|
|
|
|
extern devclass_t le_devclass;
|
|
|
|
struct lance_softc {
|
|
struct ifnet *sc_ifp;
|
|
struct ifmedia sc_media;
|
|
struct mtx sc_mtx;
|
|
struct callout sc_wdog_ch;
|
|
int sc_wdog_timer;
|
|
|
|
/*
|
|
* Memory functions:
|
|
*
|
|
* copy to/from descriptor
|
|
* copy to/from buffer
|
|
* zero bytes in buffer
|
|
*/
|
|
void (*sc_copytodesc)(struct lance_softc *, void *, int, int);
|
|
void (*sc_copyfromdesc)(struct lance_softc *, void *, int, int);
|
|
void (*sc_copytobuf)(struct lance_softc *, void *, int, int);
|
|
void (*sc_copyfrombuf)(struct lance_softc *, void *, int, int);
|
|
void (*sc_zerobuf)(struct lance_softc *, int, int);
|
|
|
|
/*
|
|
* Machine-dependent functions:
|
|
*
|
|
* read/write CSR
|
|
* hardware reset hook - may be NULL
|
|
* hardware init hook - may be NULL
|
|
* no carrier hook - may be NULL
|
|
* media change hook - may be NULL
|
|
*/
|
|
uint16_t (*sc_rdcsr)(struct lance_softc *, uint16_t);
|
|
void (*sc_wrcsr)(struct lance_softc *, uint16_t, uint16_t);
|
|
void (*sc_hwreset)(struct lance_softc *);
|
|
void (*sc_hwinit)(struct lance_softc *);
|
|
int (*sc_hwintr)(struct lance_softc *);
|
|
void (*sc_nocarrier)(struct lance_softc *);
|
|
int (*sc_mediachange)(struct lance_softc *);
|
|
void (*sc_mediastatus)(struct lance_softc *, struct ifmediareq *);
|
|
|
|
/*
|
|
* Media-supported by this interface. If this is NULL,
|
|
* the only supported media is assumed to be "manual".
|
|
*/
|
|
const int *sc_supmedia;
|
|
int sc_nsupmedia;
|
|
int sc_defaultmedia;
|
|
|
|
uint16_t sc_conf3; /* CSR3 value */
|
|
|
|
void *sc_mem; /* base address of RAM - CPU's view */
|
|
bus_addr_t sc_addr; /* base address of RAM - LANCE's view */
|
|
|
|
bus_size_t sc_memsize; /* size of RAM */
|
|
|
|
int sc_nrbuf; /* number of receive buffers */
|
|
int sc_ntbuf; /* number of transmit buffers */
|
|
int sc_last_rd;
|
|
int sc_first_td;
|
|
int sc_last_td;
|
|
int sc_no_td;
|
|
|
|
int sc_initaddr;
|
|
int sc_rmdaddr;
|
|
int sc_tmdaddr;
|
|
int sc_rbufaddr;
|
|
int sc_tbufaddr;
|
|
|
|
uint8_t sc_enaddr[ETHER_ADDR_LEN];
|
|
|
|
void (*sc_meminit)(struct lance_softc *);
|
|
void (*sc_start_locked)(struct lance_softc *);
|
|
|
|
int sc_flags;
|
|
#define LE_ALLMULTI (1 << 0)
|
|
#define LE_BSWAP (1 << 1)
|
|
#define LE_CARRIER (1 << 2)
|
|
#define LE_DEBUG (1 << 3)
|
|
#define LE_PROMISC (1 << 4)
|
|
};
|
|
|
|
#define LE_LOCK_INIT(_sc, _name) \
|
|
mtx_init(&(_sc)->sc_mtx, _name, MTX_NETWORK_LOCK, MTX_DEF)
|
|
#define LE_LOCK_INITIALIZED(_sc) mtx_initialized(&(_sc)->sc_mtx)
|
|
#define LE_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
|
|
#define LE_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
|
|
#define LE_LOCK_ASSERT(_sc, _what) mtx_assert(&(_sc)->sc_mtx, (_what))
|
|
#define LE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx)
|
|
|
|
/*
|
|
* Unfortunately, manual byte swapping is only necessary for the PCnet-PCI
|
|
* variants but not for the original LANCE or ILACC so we cannot do this
|
|
* with #ifdefs resolved at compile time.
|
|
*/
|
|
#define LE_HTOLE16(v) (((sc)->sc_flags & LE_BSWAP) ? htole16(v) : (v))
|
|
#define LE_HTOLE32(v) (((sc)->sc_flags & LE_BSWAP) ? htole32(v) : (v))
|
|
#define LE_LE16TOH(v) (((sc)->sc_flags & LE_BSWAP) ? le16toh(v) : (v))
|
|
#define LE_LE32TOH(v) (((sc)->sc_flags & LE_BSWAP) ? le32toh(v) : (v))
|
|
|
|
int lance_config(struct lance_softc *, const char*, int);
|
|
void lance_attach(struct lance_softc *);
|
|
void lance_detach(struct lance_softc *);
|
|
void lance_suspend(struct lance_softc *);
|
|
void lance_resume(struct lance_softc *);
|
|
void lance_init_locked(struct lance_softc *);
|
|
int lance_put(struct lance_softc *, int, struct mbuf *);
|
|
struct mbuf *lance_get(struct lance_softc *, int, int);
|
|
void lance_setladrf(struct lance_softc *, u_int16_t *);
|
|
|
|
/*
|
|
* The following functions are only useful on certain CPU/bus
|
|
* combinations. They should be written in assembly language for
|
|
* maximum efficiency, but machine-independent versions are provided
|
|
* for drivers that have not yet been optimized.
|
|
*/
|
|
void lance_copytobuf_contig(struct lance_softc *, void *, int, int);
|
|
void lance_copyfrombuf_contig(struct lance_softc *, void *, int, int);
|
|
void lance_zerobuf_contig(struct lance_softc *, int, int);
|
|
|
|
#if 0 /* Example only - see lance.c */
|
|
void lance_copytobuf_gap2(struct lance_softc *, void *, int, int);
|
|
void lance_copyfrombuf_gap2(struct lance_softc *, void *, int, int);
|
|
void lance_zerobuf_gap2(struct lance_softc *, int, int);
|
|
|
|
void lance_copytobuf_gap16(struct lance_softc *, void *, int, int);
|
|
void lance_copyfrombuf_gap16(struct lance_softc *, void *, int, int);
|
|
void lance_zerobuf_gap16(struct lance_softc *, int, int);
|
|
#endif /* Example only */
|
|
|
|
/*
|
|
* Compare two Ether/802 addresses for equality, inlined and
|
|
* unrolled for speed. Use this like memcmp().
|
|
*
|
|
* XXX: Add <machine/inlines.h> for stuff like this?
|
|
* XXX: or maybe add it to libkern.h instead?
|
|
*
|
|
* "I'd love to have an inline assembler version of this."
|
|
* XXX: Who wanted that? mycroft? I wrote one, but this
|
|
* version in C is as good as hand-coded assembly. -gwr
|
|
*
|
|
* Please do NOT tweak this without looking at the actual
|
|
* assembly code generated before and after your tweaks!
|
|
*/
|
|
static inline uint16_t
|
|
ether_cmp(void *one, void *two)
|
|
{
|
|
uint16_t *a = (u_short *)one;
|
|
uint16_t *b = (u_short *)two;
|
|
uint16_t diff;
|
|
|
|
#ifdef m68k
|
|
/*
|
|
* The post-increment-pointer form produces the best
|
|
* machine code for m68k. This was carefully tuned
|
|
* so it compiles to just 8 short (2-byte) op-codes!
|
|
*/
|
|
diff = *a++ - *b++;
|
|
diff |= *a++ - *b++;
|
|
diff |= *a++ - *b++;
|
|
#else
|
|
/*
|
|
* Most modern CPUs do better with a single expresion.
|
|
* Note that short-cut evaluation is NOT helpful here,
|
|
* because it just makes the code longer, not faster!
|
|
*/
|
|
diff = (a[0] - b[0]) | (a[1] - b[1]) | (a[2] - b[2]);
|
|
#endif
|
|
|
|
return (diff);
|
|
}
|
|
|
|
#endif /* _DEV_LE_LANCEVAR_H_ */
|