if_devar.h

很好的一个嵌入式linux平台下的bootloader

    "Full Duplex 10baseT",	/* TULIP_MEDIA_10BASET_FD */
    "BNC",			/* TULIP_MEDIA_BNC */
    "AUI",			/* TULIP_MEDIA_AUI */
    "External SIA",		/* TULIP_MEDIA_EXTSIA */
    "AUI/BNC",			/* TULIP_MEDIA_AUIBNC */
    "100baseTX",		/* TULIP_MEDIA_100BASET */
    "Full Duplex 100baseTX",	/* TULIP_MEDIA_100BASET_FD */
    "100baseT4",		/* TULIP_MEDIA_100BASET4 */
    "100baseFX",		/* TULIP_MEDIA_100BASEFX */
    "Full Duplex 100baseFX",	/* TULIP_MEDIA_100BASEFX_FD */
};

#if defined(IFM_ETHER)
static const int tulip_media_to_ifmedia[] = {
    IFM_ETHER | IFM_NONE,		/* TULIP_MEDIA_UNKNOWN */
    IFM_ETHER | IFM_10_T,		/* TULIP_MEDIA_10BASET */
    IFM_ETHER | IFM_10_T | IFM_FDX,	/* TULIP_MEDIA_10BASET_FD */
    IFM_ETHER | IFM_10_2,		/* TULIP_MEDIA_BNC */
    IFM_ETHER | IFM_10_5,		/* TULIP_MEDIA_AUI */
    IFM_ETHER | IFM_MANUAL,		/* TULIP_MEDIA_EXTSIA */
    IFM_ETHER | IFM_10_5,		/* TULIP_MEDIA_AUIBNC */
    IFM_ETHER | IFM_100_TX,		/* TULIP_MEDIA_100BASET */
    IFM_ETHER | IFM_100_TX | IFM_FDX,	/* TULIP_MEDIA_100BASET_FD */
    IFM_ETHER | IFM_100_T4,		/* TULIP_MEDIA_100BASET4 */
    IFM_ETHER | IFM_100_FX,		/* TULIP_MEDIA_100BASEFX */
    IFM_ETHER | IFM_100_FX | IFM_FDX,	/* TULIP_MEDIA_100BASEFX_FD */
};
#endif /* defined(IFM_ETHER) */

static const char * const tulip_system_errors[] = {
    "parity error",
    "master abort",
    "target abort",
    "reserved #3",
    "reserved #4",
    "reserved #5",
    "reserved #6",
    "reserved #7",
};

static const char * const tulip_status_bits[] = {
    NULL,
    "transmit process stopped",
    NULL,
    "transmit jabber timeout",

    NULL,
    "transmit underflow",
    NULL,
    "receive underflow",

    "receive process stopped",
    "receive watchdog timeout",
    NULL,
    NULL,

    "link failure",
    NULL,
    NULL,
};

static const struct {
    tulip_srom_connection_t sc_type;
    tulip_media_t sc_media;
    u_int32_t sc_attrs;
} tulip_srom_conninfo[] = {
    { TULIP_SROM_CONNTYPE_10BASET,		TULIP_MEDIA_10BASET },
    { TULIP_SROM_CONNTYPE_BNC,			TULIP_MEDIA_BNC },
    { TULIP_SROM_CONNTYPE_AUI,			TULIP_MEDIA_AUI },
    { TULIP_SROM_CONNTYPE_100BASETX,		TULIP_MEDIA_100BASETX },
    { TULIP_SROM_CONNTYPE_100BASET4,		TULIP_MEDIA_100BASET4 },
    { TULIP_SROM_CONNTYPE_100BASEFX,		TULIP_MEDIA_100BASEFX },
    { TULIP_SROM_CONNTYPE_MII_10BASET,		TULIP_MEDIA_10BASET,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_MII_100BASETX,	TULIP_MEDIA_100BASETX,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_MII_100BASET4,	TULIP_MEDIA_100BASET4,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_MII_100BASEFX,	TULIP_MEDIA_100BASEFX,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_10BASET_NWAY,		TULIP_MEDIA_10BASET,
		TULIP_SROM_ATTR_NWAY },
    { TULIP_SROM_CONNTYPE_10BASET_FD,		TULIP_MEDIA_10BASET_FD },
    { TULIP_SROM_CONNTYPE_MII_10BASET_FD,	TULIP_MEDIA_10BASET_FD,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_100BASETX_FD,		TULIP_MEDIA_100BASETX_FD },
    { TULIP_SROM_CONNTYPE_MII_100BASETX_FD,	TULIP_MEDIA_100BASETX_FD,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_10BASET_NOLINKPASS,	TULIP_MEDIA_10BASET,
		TULIP_SROM_ATTR_NOLINKPASS },
    { TULIP_SROM_CONNTYPE_AUTOSENSE,		TULIP_MEDIA_UNKNOWN,
		TULIP_SROM_ATTR_AUTOSENSE },
    { TULIP_SROM_CONNTYPE_AUTOSENSE_POWERUP,	TULIP_MEDIA_UNKNOWN,
		TULIP_SROM_ATTR_AUTOSENSE|TULIP_SROM_ATTR_POWERUP },
    { TULIP_SROM_CONNTYPE_AUTOSENSE_NWAY,	TULIP_MEDIA_UNKNOWN,
		TULIP_SROM_ATTR_AUTOSENSE|TULIP_SROM_ATTR_NWAY },
    { TULIP_SROM_CONNTYPE_NOT_USED,		TULIP_MEDIA_UNKNOWN }
};
#define	TULIP_SROM_LASTCONNIDX	\
		(sizeof(tulip_srom_conninfo)/sizeof(tulip_srom_conninfo[0]) - 1)

static const struct {
    tulip_media_t sm_type;
    tulip_srom_media_t sm_srom_type;
} tulip_srom_mediums[] = {
    { 	TULIP_MEDIA_100BASEFX_FD,	TULIP_SROM_MEDIA_100BASEFX_FD	},
    {	TULIP_MEDIA_100BASEFX,		TULIP_SROM_MEDIA_100BASEFX	},
    {	TULIP_MEDIA_100BASET4,		TULIP_SROM_MEDIA_100BASET4	},
    {	TULIP_MEDIA_100BASETX_FD,	TULIP_SROM_MEDIA_100BASETX_FD	},
    {	TULIP_MEDIA_100BASETX,		TULIP_SROM_MEDIA_100BASETX	},
    {	TULIP_MEDIA_10BASET_FD,		TULIP_SROM_MEDIA_10BASET_FD	},
    {	TULIP_MEDIA_AUI,		TULIP_SROM_MEDIA_AUI		},
    {	TULIP_MEDIA_BNC,		TULIP_SROM_MEDIA_BNC		},
    {	TULIP_MEDIA_10BASET,		TULIP_SROM_MEDIA_10BASET	},
    {	TULIP_MEDIA_UNKNOWN						}
};
#endif /* TULIP_HDR_DATA */

/*
 * This driver supports a maximum of 32 tulip boards.
 * This should be enough for the forseeable future.
 */
#define	TULIP_MAX_DEVICES	32

#if defined(TULIP_USE_SOFTINTR) && defined(TULIP_HDR_DATA)
static u_int32_t tulip_softintr_mask;
static int tulip_softintr_last_unit;
static int tulip_softintr_max_unit;
static void tulip_softintr(void);
#endif

#ifdef notyet
#define	SIOCGADDRROM		_IOW('i', 240, struct ifreq)	/* get 128 bytes of ROM */
#define	SIOCGCHIPID		_IOWR('i', 241, struct ifreq)	/* get chipid */
#endif

#if defined(__FreeBSD__)
typedef void ifnet_ret_t;
typedef int ioctl_cmd_t;
#if defined(TULIP_HDR_DATA)
static tulip_softc_t *tulips[TULIP_MAX_DEVICES];
#endif
#if BSD >= 199506
#define TULIP_IFP_TO_SOFTC(ifp) ((tulip_softc_t *)((ifp)->if_softc))
#if NBPFILTER > 0
#define	TULIP_BPF_MTAP(sc, m)	bpf_mtap(&(sc)->tulip_if, m)
#define	TULIP_BPF_TAP(sc, p, l)	bpf_tap(&(sc)->tulip_if, p, l)
#define	TULIP_BPF_ATTACH(sc)	bpfattach(&(sc)->tulip_if, DLT_EN10MB, sizeof(struct ether_header))
#endif
#define	tulip_intrfunc_t	void
#define	TULIP_VOID_INTRFUNC
#define	IFF_NOTRAILERS		0
#define	CLBYTES			PAGE_SIZE
#if 0
#define	TULIP_KVATOPHYS(sc, va)	kvtop(va)
#endif
#define	TULIP_EADDR_FMT		"%6D"
#define	TULIP_EADDR_ARGS(addr)	addr, ":"
#else
extern int bootverbose;
#define TULIP_IFP_TO_SOFTC(ifp)         (TULIP_UNIT_TO_SOFTC((ifp)->if_unit))
#include <sys/devconf.h>
#define	TULIP_DEVCONF
#endif
#if defined(TULIP_USE_SOFTINTR)
NETISR_SET(NETISR_DE, tulip_softintr);
#endif
#define	TULIP_UNIT_TO_SOFTC(unit)	(tulips[unit])
#define	TULIP_BURSTSIZE(unit)		pci_max_burst_len
#define	loudprintf			if (bootverbose) printf
#endif

#if defined(__bsdi__)
typedef int ifnet_ret_t;
typedef u_long ioctl_cmd_t;
extern struct cfdriver decd;
#define	TULIP_UNIT_TO_SOFTC(unit)	((tulip_softc_t *) decd.cd_devs[unit])
#define TULIP_IFP_TO_SOFTC(ifp)		(TULIP_UNIT_TO_SOFTC((ifp)->if_unit))
#define	TULIP_ETHER_IFATTACH(sc)	ether_attach(&(sc)->tulip_if)
#if _BSDI_VERSION >= 199510
#if 0
#define	TULIP_BURSTSIZE(unit)		log2_burst_size
#endif
#define	loudprintf			aprint_verbose
#define	printf				(*sc->tulip_pf)
#define	MCNT(x) (sizeof(x) / sizeof(struct ifmedia_entry))
#elif _BSDI_VERSION <= 199401
#define	DRQNONE				0
#define	loudprintf			printf
static void
arp_ifinit(
    struct arpcom *ac,
    struct ifaddr *ifa)
{
    ac->ac_ipaddr = IA_SIN(ifa)->sin_addr;
    arpwhohas(ac, &ac->ac_ipaddr);
}
#endif
#endif	/* __bsdi__ */

#if defined(__NetBSD__) || defined(__OpenBSD__)
typedef void ifnet_ret_t;
typedef u_long ioctl_cmd_t;
extern struct cfattach de_ca;
extern struct cfdriver de_cd;
#define	TULIP_UNIT_TO_SOFTC(unit)	((tulip_softc_t *) de_cd.cd_devs[unit])
#define TULIP_IFP_TO_SOFTC(ifp)         ((tulip_softc_t *)((ifp)->if_softc))
#define	tulip_unit			tulip_dev.dv_unit
#if defined(__OpenBSD__)
#define tulip_xname                     tulip_dev.dv_cfdata->cf_driver->cd_name
#else
#define	tulip_xname			tulip_if.if_xname
#endif

#define	TULIP_RAISESPL()		splnet()
#define	TULIP_RAISESOFTSPL()		splsoftnet()
#define	TULIP_RESTORESPL(s)		splx(s)
#define	loudprintf			printf

#if !defined(__OpenBSD__)
#define	tulip_if			tulip_ec.ec_if
#define	tulip_enaddr			tulip_enaddr
#define	tulip_multicnt			tulip_ec.ec_multicnt
#define	TULIP_ETHERCOM(sc)		(&(sc)->tulip_ec)
#define	TULIP_ARP_IFINIT(sc, ifa)	arp_ifinit(&(sc)->tulip_if, (ifa))
#define	TULIP_ETHER_IFATTACH(sc)	ether_ifattach(&(sc)->tulip_if, (sc)->tulip_enaddr)
#define	TULIP_PRINTF_FMT		"%s"
#define	TULIP_PRINTF_ARGS		sc->tulip_xname
#else
#define	TULIP_PRINTF_FMT		"%s%d"
#define	TULIP_PRINTF_ARGS		sc->tulip_xname, sc->tulip_unit
#endif
#endif	/* __NetBSD__ */

#if defined(__alpha__)
/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */
#define TULIP_KVATOPHYS(sc, va)		alpha_XXX_dmamap((vm_offset_t)(va))
#endif

#if defined(PROM)
/* P5064 mapping of local memory onto PCI bus is not 1 to 1 */
#define TULIP_KVATOPHYS(sc, va)		_pci_dmamap((vm_offset_t)(va), 1)
#define	TULIP_BURSTSIZE(unit)		MIN(_pci_maxburst_log2(), 5)
#endif

#ifndef TULIP_PRINTF_FMT
#define	TULIP_PRINTF_FMT		"%s%d"
#endif
#ifndef TULIP_PRINTF_ARGS
#define	TULIP_PRINTF_ARGS		sc->tulip_name, sc->tulip_unit
#endif

#ifndef TULIP_BURSTSIZE
#define	TULIP_BURSTSIZE(unit)		3
#endif

#ifndef	tulip_if
#define	tulip_if	tulip_ac.ac_if
#endif
#ifndef tulip_unit
#define	tulip_unit	tulip_if.if_unit
#endif
#define	tulip_name	tulip_if.if_name
#ifndef tulip_enaddr
#define	tulip_enaddr	tulip_ac.ac_enaddr
#endif
#ifndef tulip_multicnt
#define	tulip_multicnt	tulip_ac.ac_multicnt
#endif

#if !defined(TULIP_ETHERCOM)
#define	TULIP_ETHERCOM(sc)		(&(sc)->tulip_ac)
#endif

#if !defined(TULIP_ARP_IFINIT)
#define	TULIP_ARP_IFINIT(sc, ifa)	arp_ifinit(TULIP_ETHERCOM(sc), (ifa))
#endif

#if !defined(TULIP_ETHER_IFATTACH)
#define	TULIP_ETHER_IFATTACH(sc)	ether_ifattach(&(sc)->tulip_if)
#endif

#if !defined(tulip_bpf) && (!defined(__bsdi__) || _BSDI_VERSION >= 199401)
#define	tulip_bpf	tulip_if.if_bpf
#endif

#if !defined(tulip_intrfunc_t)
#define	tulip_intrfunc_t	int
#endif

#if !defined(TULIP_KVATOPHYS)
#define	TULIP_KVATOPHYS(sc, va)	vtophys(va)
#endif

#ifndef TULIP_RAISESPL
#define	TULIP_RAISESPL()		splimp()
#endif
#ifndef TULIP_RAISESOFTSPL
#define	TULIP_RAISESOFTSPL()		splnet()
#endif
#ifndef TULUP_RESTORESPL
#define	TULIP_RESTORESPL(s)		splx(s)
#endif

/*
 * While I think FreeBSD's 2.2 change to the bpf is a nice simplification,
 * it does add yet more conditional code to this driver.  Sigh.
 */
#if !defined(TULIP_BPF_MTAP) && NBPFILTER > 0
#define	TULIP_BPF_MTAP(sc, m)	bpf_mtap((sc)->tulip_bpf, m)
#define	TULIP_BPF_TAP(sc, p, l)	bpf_tap((sc)->tulip_bpf, p, l)
#define	TULIP_BPF_ATTACH(sc)	bpfattach(&(sc)->tulip_bpf, &(sc)->tulip_if, DLT_EN10MB, sizeof(struct ether_header))
#endif

#if defined(TULIP_PERFSTATS)
#define	TULIP_PERFMERGE(sc, member) \
	do { (sc)->tulip_perfstats[TULIP_PERF_TOTAL].member \
	     += (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
	 (sc)->tulip_perfstats[TULIP_PERF_PREVIOUS].member \
	      = (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
	    (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member = 0; } while (0)
#define	TULIP_PERFSTART(name) const tulip_cycle_t perfstart_ ## name = TULIP_PERFREAD();
#define	TULIP_PERFEND(name)	do { \
	    (sc)->tulip_curperfstats.perf_ ## name ## _cycles += TULIP_PERFDIFF(perfstart_ ## name, TULIP_PERFREAD()); \
	    (sc)->tulip_curperfstats.perf_ ## name ++; \
	} while (0)
#if defined(__i386__)
typedef u_quad_t tulip_cycle_t;
static __inline__ tulip_cycle_t
TULIP_PERFREAD(
    void)
{
    tulip_cycle_t x;
    __asm__ volatile (".byte 0x0f, 0x31" : "=A" (x));
    return x;
}
#define	TULIP_PERFDIFF(s, f)	((f) - (s))
#elif defined(__alpha__)
typedef unsigned long tulip_cycle_t;
static __inline__ tulip_cycle_t
TULIP_PERFREAD(
    void)
{
    tulip_cycle_t x;
    __asm__ volatile ("rpcc %0" : "=r" (x));
    return x;
}
#define	TULIP_PERFDIFF(s, f)	((unsigned int) ((f) - (s)))
#endif
#else
#define	TULIP_PERFSTART(name)	
#define	TULIP_PERFEND(name)	do { } while (0)
#define	TULIP_PERFMERGE(s,n)	do { } while (0)
#endif /* TULIP_PERFSTATS */

/*
 * However, this change to FreeBSD I am much less enamored with.
 */
#if !defined(TULIP_EADDR_FMT)
#define	TULIP_EADDR_FMT		"%s"
#define	TULIP_EADDR_ARGS(addr)	ether_sprintf(addr)
#endif

#define	TULIP_CRC32_POLY	0xEDB88320UL	/* CRC-32 Poly -- Little Endian */
#define	TULIP_MAX_TXSEG		30

#define	TULIP_ADDREQUAL(a1, a2) \
	(((u_int16_t *)a1)[0] == ((u_int16_t *)a2)[0] \
	 && ((u_int16_t *)a1)[1] == ((u_int16_t *)a2)[1] \
	 && ((u_int16_t *)a1)[2] == ((u_int16_t *)a2)[2])
#define	TULIP_ADDRBRDCST(a1) \
	(((u_int16_t *)a1)[0] == 0xFFFFU \
	 && ((u_int16_t *)a1)[1] == 0xFFFFU \
	 && ((u_int16_t *)a1)[2] == 0xFFFFU)

typedef int tulip_spl_t;

#endif /* !defined(_DEVAR_H) */