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if_ec.c revision 1.2.2.3
      1  1.2.2.3      cgd /*	$NetBSD: if_ec.c,v 1.2.2.3 1998/10/29 02:40:39 cgd Exp $	*/
      2  1.2.2.2  thorpej 
      3  1.2.2.2  thorpej /*-
      4  1.2.2.2  thorpej  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  1.2.2.2  thorpej  * All rights reserved.
      6  1.2.2.2  thorpej  *
      7  1.2.2.2  thorpej  * This code is derived from software contributed to The NetBSD Foundation
      8  1.2.2.2  thorpej  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  1.2.2.2  thorpej  * NASA Ames Research Center.
     10  1.2.2.2  thorpej  *
     11  1.2.2.2  thorpej  * Redistribution and use in source and binary forms, with or without
     12  1.2.2.2  thorpej  * modification, are permitted provided that the following conditions
     13  1.2.2.2  thorpej  * are met:
     14  1.2.2.2  thorpej  * 1. Redistributions of source code must retain the above copyright
     15  1.2.2.2  thorpej  *    notice, this list of conditions and the following disclaimer.
     16  1.2.2.2  thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     17  1.2.2.2  thorpej  *    notice, this list of conditions and the following disclaimer in the
     18  1.2.2.2  thorpej  *    documentation and/or other materials provided with the distribution.
     19  1.2.2.2  thorpej  * 3. All advertising materials mentioning features or use of this software
     20  1.2.2.2  thorpej  *    must display the following acknowledgement:
     21  1.2.2.2  thorpej  *	This product includes software developed by the NetBSD
     22  1.2.2.2  thorpej  *	Foundation, Inc. and its contributors.
     23  1.2.2.2  thorpej  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  1.2.2.2  thorpej  *    contributors may be used to endorse or promote products derived
     25  1.2.2.2  thorpej  *    from this software without specific prior written permission.
     26  1.2.2.2  thorpej  *
     27  1.2.2.2  thorpej  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  1.2.2.2  thorpej  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  1.2.2.2  thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  1.2.2.2  thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  1.2.2.2  thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  1.2.2.2  thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  1.2.2.2  thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  1.2.2.2  thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  1.2.2.2  thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  1.2.2.2  thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  1.2.2.2  thorpej  * POSSIBILITY OF SUCH DAMAGE.
     38  1.2.2.2  thorpej  */
     39  1.2.2.2  thorpej 
     40  1.2.2.2  thorpej /*
     41  1.2.2.2  thorpej  * Device driver for National Semiconductor DS8390/WD83C690 based ethernet
     42  1.2.2.2  thorpej  * adapters.
     43  1.2.2.2  thorpej  *
     44  1.2.2.2  thorpej  * Copyright (c) 1994, 1995 Charles M. Hannum.  All rights reserved.
     45  1.2.2.2  thorpej  *
     46  1.2.2.2  thorpej  * Copyright (C) 1993, David Greenman.  This software may be used, modified,
     47  1.2.2.2  thorpej  * copied, distributed, and sold, in both source and binary form provided that
     48  1.2.2.2  thorpej  * the above copyright and these terms are retained.  Under no circumstances is
     49  1.2.2.2  thorpej  * the author responsible for the proper functioning of this software, nor does
     50  1.2.2.2  thorpej  * the author assume any responsibility for damages incurred with its use.
     51  1.2.2.2  thorpej  */
     52  1.2.2.2  thorpej 
     53  1.2.2.2  thorpej /*
     54  1.2.2.2  thorpej  * Device driver for the 3Com Etherlink II (3c503).
     55  1.2.2.2  thorpej  */
     56  1.2.2.2  thorpej 
     57  1.2.2.2  thorpej #include "bpfilter.h"
     58  1.2.2.2  thorpej #include "rnd.h"
     59  1.2.2.2  thorpej 
     60  1.2.2.2  thorpej #include <sys/param.h>
     61  1.2.2.2  thorpej #include <sys/systm.h>
     62  1.2.2.2  thorpej #include <sys/device.h>
     63  1.2.2.2  thorpej #include <sys/socket.h>
     64  1.2.2.2  thorpej #include <sys/mbuf.h>
     65  1.2.2.2  thorpej #include <sys/syslog.h>
     66  1.2.2.2  thorpej 
     67  1.2.2.2  thorpej #include <net/if.h>
     68  1.2.2.2  thorpej #include <net/if_dl.h>
     69  1.2.2.2  thorpej #include <net/if_types.h>
     70  1.2.2.2  thorpej #include <net/if_media.h>
     71  1.2.2.2  thorpej 
     72  1.2.2.2  thorpej #include <net/if_ether.h>
     73  1.2.2.2  thorpej 
     74  1.2.2.2  thorpej #ifdef INET
     75  1.2.2.2  thorpej #include <netinet/in.h>
     76  1.2.2.2  thorpej #include <netinet/in_systm.h>
     77  1.2.2.2  thorpej #include <netinet/in_var.h>
     78  1.2.2.2  thorpej #include <netinet/ip.h>
     79  1.2.2.2  thorpej #include <netinet/if_inarp.h>
     80  1.2.2.2  thorpej #endif
     81  1.2.2.2  thorpej 
     82  1.2.2.2  thorpej #ifdef NS
     83  1.2.2.2  thorpej #include <netns/ns.h>
     84  1.2.2.2  thorpej #include <netns/ns_if.h>
     85  1.2.2.2  thorpej #endif
     86  1.2.2.2  thorpej 
     87  1.2.2.2  thorpej #if NBPFILTER > 0
     88  1.2.2.2  thorpej #include <net/bpf.h>
     89  1.2.2.2  thorpej #include <net/bpfdesc.h>
     90  1.2.2.2  thorpej #endif
     91  1.2.2.2  thorpej 
     92  1.2.2.2  thorpej #include <machine/bus.h>
     93  1.2.2.2  thorpej #include <machine/intr.h>
     94  1.2.2.2  thorpej 
     95  1.2.2.2  thorpej #include <dev/isa/isareg.h>
     96  1.2.2.2  thorpej #include <dev/isa/isavar.h>
     97  1.2.2.2  thorpej 
     98  1.2.2.2  thorpej #include <dev/ic/dp8390reg.h>
     99  1.2.2.2  thorpej #include <dev/ic/dp8390var.h>
    100  1.2.2.2  thorpej 
    101  1.2.2.2  thorpej #include <dev/isa/if_ecreg.h>
    102  1.2.2.2  thorpej 
    103  1.2.2.2  thorpej struct ec_softc {
    104  1.2.2.2  thorpej 	struct dp8390_softc sc_dp8390;
    105  1.2.2.2  thorpej 
    106  1.2.2.2  thorpej 	bus_space_tag_t sc_asict;	/* space tag for ASIC */
    107  1.2.2.2  thorpej 	bus_space_handle_t sc_asich;	/* space handle for ASIC */
    108  1.2.2.2  thorpej 
    109  1.2.2.2  thorpej 	int sc_16bitp;			/* are we 16 bit? */
    110  1.2.2.2  thorpej 
    111  1.2.2.2  thorpej 	void *sc_ih;			/* interrupt handle */
    112  1.2.2.2  thorpej };
    113  1.2.2.2  thorpej 
    114  1.2.2.2  thorpej #ifdef __BROKEN_INDIRECT_CONFIG
    115  1.2.2.2  thorpej int	ec_probe __P((struct device *, void *, void *));
    116  1.2.2.2  thorpej #else
    117  1.2.2.2  thorpej int	ec_probe __P((struct device *, struct cfdata *, void *));
    118  1.2.2.2  thorpej #endif
    119  1.2.2.2  thorpej void	ec_attach __P((struct device *, struct device *, void *));
    120  1.2.2.2  thorpej 
    121  1.2.2.2  thorpej struct cfattach ec_ca = {
    122  1.2.2.2  thorpej 	sizeof(struct ec_softc), ec_probe, ec_attach
    123  1.2.2.2  thorpej };
    124  1.2.2.2  thorpej 
    125  1.2.2.2  thorpej struct cfdriver ec_cd = {
    126  1.2.2.2  thorpej 	NULL, "ec", DV_IFNET
    127  1.2.2.2  thorpej };
    128  1.2.2.2  thorpej 
    129  1.2.2.2  thorpej int	ec_set_media __P((struct ec_softc *, int));
    130  1.2.2.2  thorpej 
    131  1.2.2.2  thorpej int	ec_mediachange __P((struct dp8390_softc *));
    132  1.2.2.2  thorpej void	ec_mediastatus __P((struct dp8390_softc *, struct ifmediareq *));
    133  1.2.2.2  thorpej 
    134  1.2.2.2  thorpej void	ec_init_card __P((struct dp8390_softc *));
    135  1.2.2.2  thorpej int	ec_write_mbuf __P((struct dp8390_softc *, struct mbuf *, int));
    136  1.2.2.2  thorpej int	ec_ring_copy __P((struct dp8390_softc *, int, caddr_t, u_short));
    137  1.2.2.2  thorpej void	ec_read_hdr __P((struct dp8390_softc *, int, struct dp8390_ring *));
    138  1.2.2.2  thorpej int	ec_fake_test_mem __P((struct dp8390_softc *));
    139  1.2.2.2  thorpej int	ec_test_mem __P((struct dp8390_softc *));
    140  1.2.2.2  thorpej 
    141  1.2.2.2  thorpej __inline void ec_writemem __P((struct ec_softc *, u_int8_t *, int, int));
    142  1.2.2.2  thorpej __inline void ec_readmem __P((struct ec_softc *, int, u_int8_t *, int));
    143  1.2.2.2  thorpej 
    144  1.2.2.2  thorpej static const int ec_iobase[] = {
    145  1.2.2.2  thorpej 	0x2e0, 0x2a0, 0x280, 0x250, 0x350, 0x330, 0x310, 0x300,
    146  1.2.2.2  thorpej };
    147  1.2.2.2  thorpej #define	NEC_IOBASE	(sizeof(ec_iobase) / sizeof(ec_iobase[0]))
    148  1.2.2.2  thorpej 
    149  1.2.2.2  thorpej static const int ec_membase[] = {
    150  1.2.2.2  thorpej 	MADDRUNK, MADDRUNK, MADDRUNK, MADDRUNK, 0xc8000, 0xcc000,
    151  1.2.2.2  thorpej 	0xd8000, 0xdc000,
    152  1.2.2.2  thorpej };
    153  1.2.2.2  thorpej #define	NEC_MEMBASE	(sizeof(ec_membase) / sizeof(ec_membase[0]))
    154  1.2.2.2  thorpej 
    155  1.2.2.2  thorpej int ec_media[] = {
    156  1.2.2.2  thorpej 	IFM_ETHER|IFM_10_2,
    157  1.2.2.2  thorpej 	IFM_ETHER|IFM_10_5,
    158  1.2.2.2  thorpej };
    159  1.2.2.2  thorpej #define	NEC_MEDIA	(sizeof(ec_media) / sizeof(ec_media[0]))
    160  1.2.2.2  thorpej #define	EC_DEFMEDIA	(IFM_ETHER|IFM_10_2)
    161  1.2.2.2  thorpej 
    162  1.2.2.2  thorpej int
    163  1.2.2.2  thorpej ec_probe(parent, match, aux)
    164  1.2.2.2  thorpej 	struct device *parent;
    165  1.2.2.2  thorpej #ifdef __BROKEN_INDIRECT_CONFIG
    166  1.2.2.2  thorpej 	void *match;
    167  1.2.2.2  thorpej #else
    168  1.2.2.2  thorpej 	struct cfdata *match;
    169  1.2.2.2  thorpej #endif
    170  1.2.2.2  thorpej 	void *aux;
    171  1.2.2.2  thorpej {
    172  1.2.2.2  thorpej 	struct isa_attach_args *ia = aux;
    173  1.2.2.2  thorpej 	bus_space_tag_t nict, asict, memt;
    174  1.2.2.2  thorpej 	bus_space_handle_t nich, asich, memh;
    175  1.2.2.2  thorpej 	bus_size_t memsize;
    176  1.2.2.2  thorpej 	int nich_valid, asich_valid, memh_valid;
    177  1.2.2.2  thorpej 	int i, rv = 0;
    178  1.2.2.2  thorpej 	u_int8_t x;
    179  1.2.2.2  thorpej 
    180  1.2.2.2  thorpej 	nict = asict = ia->ia_iot;
    181  1.2.2.2  thorpej 	memt = ia->ia_memt;
    182  1.2.2.2  thorpej 
    183  1.2.2.2  thorpej 	nich_valid = asich_valid = memh_valid = 0;
    184  1.2.2.2  thorpej 
    185  1.2.2.2  thorpej 	/*
    186  1.2.2.2  thorpej 	 * Hmm, a 16-bit card has 16k of memory, but only an 8k window
    187  1.2.2.2  thorpej 	 * to it.
    188  1.2.2.2  thorpej 	 */
    189  1.2.2.2  thorpej 	memsize = 8192;
    190  1.2.2.2  thorpej 
    191  1.2.2.2  thorpej 	/* Disallow wildcarded i/o addresses. */
    192  1.2.2.2  thorpej 	if (ia->ia_iobase == ISACF_PORT_DEFAULT)
    193  1.2.2.2  thorpej 		return (0);
    194  1.2.2.2  thorpej 
    195  1.2.2.2  thorpej 	/* Disallow wildcarded mem address. */
    196  1.2.2.2  thorpej 	if (ia->ia_maddr == ISACF_IOMEM_DEFAULT)
    197  1.2.2.2  thorpej 		return (0);
    198  1.2.2.2  thorpej 
    199  1.2.2.2  thorpej 	/* Validate the i/o base. */
    200  1.2.2.2  thorpej 	for (i = 0; i < NEC_IOBASE; i++)
    201  1.2.2.2  thorpej 		if (ia->ia_iobase == ec_iobase[i])
    202  1.2.2.2  thorpej 			break;
    203  1.2.2.2  thorpej 	if (i == NEC_IOBASE)
    204  1.2.2.2  thorpej 		return (0);
    205  1.2.2.2  thorpej 
    206  1.2.2.2  thorpej 	/* Validate the mem base. */
    207  1.2.2.2  thorpej 	for (i = 0; i < NEC_MEMBASE; i++) {
    208  1.2.2.2  thorpej 		if (ec_membase[i] == MADDRUNK)
    209  1.2.2.2  thorpej 			continue;
    210  1.2.2.2  thorpej 		if (ia->ia_maddr == ec_membase[i])
    211  1.2.2.2  thorpej 			break;
    212  1.2.2.2  thorpej 	}
    213  1.2.2.2  thorpej 	if (i == NEC_MEMBASE)
    214  1.2.2.2  thorpej 		return (0);
    215  1.2.2.2  thorpej 
    216  1.2.2.2  thorpej 	/* Attempt to map the NIC space. */
    217  1.2.2.2  thorpej 	if (bus_space_map(nict, ia->ia_iobase + ELINK2_NIC_OFFSET,
    218  1.2.2.2  thorpej 	    ELINK2_NIC_PORTS, 0, &nich))
    219  1.2.2.2  thorpej 		goto out;
    220  1.2.2.2  thorpej 	nich_valid = 1;
    221  1.2.2.2  thorpej 
    222  1.2.2.2  thorpej 	/* Attempt to map the ASIC space. */
    223  1.2.2.2  thorpej 	if (bus_space_map(asict, ia->ia_iobase + ELINK2_ASIC_OFFSET,
    224  1.2.2.2  thorpej 	    ELINK2_ASIC_PORTS, 0, &asich))
    225  1.2.2.2  thorpej 		goto out;
    226  1.2.2.2  thorpej 	asich_valid = 1;
    227  1.2.2.2  thorpej 
    228  1.2.2.2  thorpej 	/* Attempt to map the memory space. */
    229  1.2.2.2  thorpej 	if (bus_space_map(memt, ia->ia_maddr, memsize, 0, &memh))
    230  1.2.2.2  thorpej 		goto out;
    231  1.2.2.2  thorpej 	memh_valid = 1;
    232  1.2.2.2  thorpej 
    233  1.2.2.2  thorpej 	/*
    234  1.2.2.2  thorpej 	 * Verify that the kernel configured I/O address matches the
    235  1.2.2.2  thorpej 	 * board configured I/O address.
    236  1.2.2.2  thorpej 	 *
    237  1.2.2.2  thorpej 	 * This is really only useful to see if something that looks like
    238  1.2.2.2  thorpej 	 * the board is there; after all, we're already talking to it at
    239  1.2.2.2  thorpej 	 * this point.
    240  1.2.2.2  thorpej 	 */
    241  1.2.2.2  thorpej 	x = bus_space_read_1(asict, asich, ELINK2_BCFR);
    242  1.2.2.2  thorpej 	if (x == 0 || (x & (x - 1)) != 0)
    243  1.2.2.2  thorpej 		goto out;
    244  1.2.2.2  thorpej 	i = ffs(x) - 1;
    245  1.2.2.2  thorpej 	if (ia->ia_iobase != ec_iobase[i])
    246  1.2.2.2  thorpej 		goto out;
    247  1.2.2.2  thorpej 
    248  1.2.2.2  thorpej 	/*
    249  1.2.2.2  thorpej 	 * ...and for the memory address.  Note we do not support
    250  1.2.2.2  thorpej 	 * cards configured with shared memory disabled.
    251  1.2.2.2  thorpej 	 */
    252  1.2.2.2  thorpej 	x = bus_space_read_1(asict, asich, ELINK2_PCFR);
    253  1.2.2.2  thorpej 	if (x == 0 || (x & (x - 1)) != 0)
    254  1.2.2.2  thorpej 		goto out;
    255  1.2.2.2  thorpej 	i = ffs(x) - 1;
    256  1.2.2.2  thorpej 	if (ia->ia_maddr != ec_membase[i])
    257  1.2.2.2  thorpej 		goto out;
    258  1.2.2.2  thorpej 
    259  1.2.2.2  thorpej 	/* So, we say we've found it! */
    260  1.2.2.2  thorpej 	ia->ia_iosize = ELINK2_NIC_PORTS;
    261  1.2.2.2  thorpej 	ia->ia_msize = memsize;
    262  1.2.2.2  thorpej 	rv = 1;
    263  1.2.2.2  thorpej 
    264  1.2.2.2  thorpej  out:
    265  1.2.2.2  thorpej 	if (nich_valid)
    266  1.2.2.2  thorpej 		bus_space_unmap(nict, nich, ELINK2_NIC_PORTS);
    267  1.2.2.2  thorpej 	if (asich_valid)
    268  1.2.2.2  thorpej 		bus_space_unmap(asict, asich, ELINK2_ASIC_PORTS);
    269  1.2.2.2  thorpej 	if (memh_valid)
    270  1.2.2.2  thorpej 		bus_space_unmap(memt, memh, memsize);
    271  1.2.2.2  thorpej 	return (rv);
    272  1.2.2.2  thorpej }
    273  1.2.2.2  thorpej 
    274  1.2.2.2  thorpej void
    275  1.2.2.2  thorpej ec_attach(parent, self, aux)
    276  1.2.2.2  thorpej 	struct device *parent, *self;
    277  1.2.2.2  thorpej 	void *aux;
    278  1.2.2.2  thorpej {
    279  1.2.2.2  thorpej 	struct ec_softc *esc = (struct ec_softc *)self;
    280  1.2.2.2  thorpej 	struct dp8390_softc *sc = &esc->sc_dp8390;
    281  1.2.2.2  thorpej 	struct isa_attach_args *ia = aux;
    282  1.2.2.2  thorpej 	bus_space_tag_t nict, asict, memt;
    283  1.2.2.2  thorpej 	bus_space_handle_t nich, asich, memh;
    284  1.2.2.2  thorpej 	bus_size_t memsize;
    285  1.2.2.2  thorpej 	u_int8_t tmp;
    286  1.2.2.2  thorpej 	int i;
    287  1.2.2.2  thorpej 
    288  1.2.2.2  thorpej 	printf("\n");
    289  1.2.2.2  thorpej 
    290  1.2.2.2  thorpej 	nict = asict = ia->ia_iot;
    291  1.2.2.2  thorpej 	memt = ia->ia_memt;
    292  1.2.2.2  thorpej 
    293  1.2.2.2  thorpej 	/*
    294  1.2.2.2  thorpej 	 * Hmm, a 16-bit card has 16k of memory, but only an 8k window
    295  1.2.2.2  thorpej 	 * to it.
    296  1.2.2.2  thorpej 	 */
    297  1.2.2.2  thorpej 	memsize = 8192;
    298  1.2.2.2  thorpej 
    299  1.2.2.2  thorpej 	/* Map the NIC space. */
    300  1.2.2.2  thorpej 	if (bus_space_map(nict, ia->ia_iobase + ELINK2_NIC_OFFSET,
    301  1.2.2.2  thorpej 	    ELINK2_NIC_PORTS, 0, &nich)) {
    302  1.2.2.2  thorpej 		printf("%s: can't map nic i/o space\n",
    303  1.2.2.2  thorpej 		    sc->sc_dev.dv_xname);
    304  1.2.2.2  thorpej 		return;
    305  1.2.2.2  thorpej 	}
    306  1.2.2.2  thorpej 
    307  1.2.2.2  thorpej 	/* Map the ASIC space. */
    308  1.2.2.2  thorpej 	if (bus_space_map(asict, ia->ia_iobase + ELINK2_ASIC_OFFSET,
    309  1.2.2.2  thorpej 	    ELINK2_ASIC_PORTS, 0, &asich)) {
    310  1.2.2.2  thorpej 		printf("%s: can't map asic i/o space\n",
    311  1.2.2.2  thorpej 		    sc->sc_dev.dv_xname);
    312  1.2.2.2  thorpej 		return;
    313  1.2.2.2  thorpej 	}
    314  1.2.2.2  thorpej 
    315  1.2.2.2  thorpej 	/* Map the memory space. */
    316  1.2.2.2  thorpej 	if (bus_space_map(memt, ia->ia_maddr, memsize, 0, &memh)) {
    317  1.2.2.2  thorpej 		printf("%s: can't map shared memory\n",
    318  1.2.2.2  thorpej 		    sc->sc_dev.dv_xname);
    319  1.2.2.2  thorpej 		return;
    320  1.2.2.2  thorpej 	}
    321  1.2.2.2  thorpej 
    322  1.2.2.2  thorpej 	esc->sc_asict = asict;
    323  1.2.2.2  thorpej 	esc->sc_asich = asich;
    324  1.2.2.2  thorpej 
    325  1.2.2.2  thorpej 	sc->sc_regt = nict;
    326  1.2.2.2  thorpej 	sc->sc_regh = nich;
    327  1.2.2.2  thorpej 
    328  1.2.2.2  thorpej 	sc->sc_buft = memt;
    329  1.2.2.2  thorpej 	sc->sc_bufh = memh;
    330  1.2.2.2  thorpej 
    331  1.2.2.2  thorpej 	/* Interface is always enabled. */
    332  1.2.2.2  thorpej 	sc->sc_enabled = 1;
    333  1.2.2.2  thorpej 
    334  1.2.2.2  thorpej 	/* Registers are linear. */
    335  1.2.2.2  thorpej 	for (i = 0; i < 16; i++)
    336  1.2.2.2  thorpej 		sc->sc_reg_map[i] = i;
    337  1.2.2.2  thorpej 
    338  1.2.2.2  thorpej 	/* Now we can use the NIC_{GET,PUT}() macros. */
    339  1.2.2.2  thorpej 
    340  1.2.2.2  thorpej 	/*
    341  1.2.2.2  thorpej 	 * Reset NIC and ASIC.  Enable on-board transeiver throughout
    342  1.2.2.2  thorpej 	 * reset sequence since it will lock up if the cable isn't
    343  1.2.2.2  thorpej 	 * connected if we don't.
    344  1.2.2.2  thorpej 	 */
    345  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_CR,
    346  1.2.2.2  thorpej 	    ELINK2_CR_RST | ELINK2_CR_XSEL);
    347  1.2.2.2  thorpej 
    348  1.2.2.2  thorpej 	/* Wait for a while, then un-reset it. */
    349  1.2.2.2  thorpej 	delay(50);
    350  1.2.2.2  thorpej 
    351  1.2.2.2  thorpej 	/*
    352  1.2.2.2  thorpej 	 * The 3Com ASIC defaults to rather strange settings for the CR
    353  1.2.2.2  thorpej 	 * after a reset.  It's important to set it again after the
    354  1.2.2.2  thorpej 	 * following write (this is done when we map the PROM below).
    355  1.2.2.2  thorpej 	 */
    356  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_CR, ELINK2_CR_XSEL);
    357  1.2.2.2  thorpej 
    358  1.2.2.2  thorpej 	/* Wait a bit for the NIC to recover from the reset. */
    359  1.2.2.2  thorpej 	delay(5000);
    360  1.2.2.2  thorpej 
    361  1.2.2.2  thorpej 	/*
    362  1.2.2.2  thorpej 	 * Get the station address from on-board ROM.
    363  1.2.2.2  thorpej 	 *
    364  1.2.2.2  thorpej 	 * First, map Ethernet address PROM over the top of where the NIC
    365  1.2.2.2  thorpej 	 * registers normally appear.
    366  1.2.2.2  thorpej 	 */
    367  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_CR,
    368  1.2.2.2  thorpej 	    ELINK2_CR_XSEL | ELINK2_CR_EALO);
    369  1.2.2.2  thorpej 
    370  1.2.2.2  thorpej 	for (i = 0; i < ETHER_ADDR_LEN; i++)
    371  1.2.2.2  thorpej 		sc->sc_enaddr[i] = NIC_GET(nict, nich, i);
    372  1.2.2.2  thorpej 
    373  1.2.2.2  thorpej 	/*
    374  1.2.2.2  thorpej 	 * Unmap PROM - select NIC registers.  The proper setting of the
    375  1.2.2.2  thorpej 	 * transciever is set in later in ec_init_card() via dp8390_init().
    376  1.2.2.2  thorpej 	 */
    377  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_CR, ELINK2_CR_XSEL);
    378  1.2.2.2  thorpej 
    379  1.2.2.2  thorpej 	/* Determine if this is an 8-bit or 16-bit board. */
    380  1.2.2.2  thorpej 
    381  1.2.2.2  thorpej 	/* Select page 0 registers. */
    382  1.2.2.2  thorpej 	NIC_PUT(nict, nich, ED_P0_CR, ED_CR_RD2 | ED_CR_PAGE_0 | ED_CR_STP);
    383  1.2.2.2  thorpej 
    384  1.2.2.2  thorpej 	/*
    385  1.2.2.2  thorpej 	 * Attempt to clear WTS.  If it doesn't clear, then this is a
    386  1.2.2.2  thorpej 	 * 16-bit board.
    387  1.2.2.2  thorpej 	 */
    388  1.2.2.2  thorpej 	NIC_PUT(nict, nich, ED_P0_DCR, 0);
    389  1.2.2.2  thorpej 
    390  1.2.2.2  thorpej 	/* Select page 2 registers. */
    391  1.2.2.2  thorpej 	NIC_PUT(nict, nich, ED_P0_CR, ED_CR_RD2 | ED_CR_PAGE_2 | ED_CR_STP);
    392  1.2.2.2  thorpej 
    393  1.2.2.2  thorpej 	/* The 3c503 forces the WTS bit to a one if this is a 16-bit board. */
    394  1.2.2.2  thorpej 	if (NIC_GET(nict, nich, ED_P2_DCR) & ED_DCR_WTS)
    395  1.2.2.2  thorpej 		esc->sc_16bitp = 1;
    396  1.2.2.2  thorpej 	else
    397  1.2.2.2  thorpej 		esc->sc_16bitp = 0;
    398  1.2.2.2  thorpej 
    399  1.2.2.2  thorpej 	printf("%s: 3Com 3c503 Ethernet (%s-bit)\n",
    400  1.2.2.2  thorpej 	    sc->sc_dev.dv_xname, esc->sc_16bitp ? "16" : "8");
    401  1.2.2.2  thorpej 
    402  1.2.2.2  thorpej 	/* Select page 0 registers. */
    403  1.2.2.2  thorpej 	NIC_PUT(nict, nich, ED_P2_CR, ED_CR_RD2 | ED_CR_PAGE_0 | ED_CR_STP);
    404  1.2.2.2  thorpej 
    405  1.2.2.2  thorpej 	sc->cr_proto = ED_CR_RD2;
    406  1.2.2.2  thorpej 
    407  1.2.2.2  thorpej 	/*
    408  1.2.2.2  thorpej 	 * DCR gets:
    409  1.2.2.2  thorpej 	 *
    410  1.2.2.2  thorpej 	 *	FIFO threshold to 8, No auto-init Remote DMA,
    411  1.2.2.2  thorpej 	 *	byte order=80x86.
    412  1.2.2.2  thorpej 	 *
    413  1.2.2.2  thorpej 	 * 16-bit cards also get word-wide DMA transfers.
    414  1.2.2.2  thorpej 	 */
    415  1.2.2.2  thorpej 	sc->dcr_reg = ED_DCR_FT1 | ED_DCR_LS |
    416  1.2.2.2  thorpej 	    (esc->sc_16bitp ? ED_DCR_WTS : 0);
    417  1.2.2.2  thorpej 
    418  1.2.2.2  thorpej 	sc->test_mem = ec_fake_test_mem;
    419  1.2.2.2  thorpej 	sc->ring_copy = ec_ring_copy;
    420  1.2.2.2  thorpej 	sc->write_mbuf = ec_write_mbuf;
    421  1.2.2.2  thorpej 	sc->read_hdr = ec_read_hdr;
    422  1.2.2.3      cgd 	sc->init_card = ec_init_card;
    423  1.2.2.2  thorpej 
    424  1.2.2.2  thorpej 	sc->sc_mediachange = ec_mediachange;
    425  1.2.2.2  thorpej 	sc->sc_mediastatus = ec_mediastatus;
    426  1.2.2.2  thorpej 
    427  1.2.2.2  thorpej 	sc->mem_start = 0;
    428  1.2.2.2  thorpej 	sc->mem_size = memsize;
    429  1.2.2.2  thorpej 
    430  1.2.2.2  thorpej 	/* Do generic parts of attach. */
    431  1.2.2.2  thorpej 	if (dp8390_config(sc, ec_media, NEC_MEDIA, EC_DEFMEDIA)) {
    432  1.2.2.2  thorpej 		printf("%s: configuration failed\n", sc->sc_dev.dv_xname);
    433  1.2.2.2  thorpej 		return;
    434  1.2.2.2  thorpej 	}
    435  1.2.2.2  thorpej 
    436  1.2.2.2  thorpej 	/*
    437  1.2.2.2  thorpej 	 * We need to override the way dp8390_config() set up our
    438  1.2.2.2  thorpej 	 * shared memory.
    439  1.2.2.2  thorpej 	 *
    440  1.2.2.2  thorpej 	 * We have an entire 8k window to put the transmit buffers on the
    441  1.2.2.2  thorpej 	 * 16-bit boards.  But since the 16bit 3c503's shared memory is only
    442  1.2.2.2  thorpej 	 * fast enough to overlap the loading of one full-size packet, trying
    443  1.2.2.2  thorpej 	 * to load more than 2 buffers can actually leave the transmitter idle
    444  1.2.2.2  thorpej 	 * during the load.  So 2 seems the best value.  (Although a mix of
    445  1.2.2.2  thorpej 	 * variable-sized packets might change this assumption.  Nonetheless,
    446  1.2.2.2  thorpej 	 * we optimize for linear transfers of same-size packets.)
    447  1.2.2.2  thorpej 	 */
    448  1.2.2.2  thorpej 	if (esc->sc_16bitp) {
    449  1.2.2.2  thorpej 		if (sc->sc_dev.dv_cfdata->cf_flags & DP8390_NO_MULTI_BUFFERING)
    450  1.2.2.2  thorpej 			sc->txb_cnt = 1;
    451  1.2.2.2  thorpej 		else
    452  1.2.2.2  thorpej 			sc->txb_cnt = 2;
    453  1.2.2.2  thorpej 
    454  1.2.2.2  thorpej 		sc->tx_page_start = ELINK2_TX_PAGE_OFFSET_16BIT;
    455  1.2.2.2  thorpej 		sc->rec_page_start = ELINK2_RX_PAGE_OFFSET_16BIT;
    456  1.2.2.2  thorpej 		sc->rec_page_stop = (memsize >> ED_PAGE_SHIFT) +
    457  1.2.2.2  thorpej 		    sc->rec_page_start;
    458  1.2.2.2  thorpej 		sc->mem_ring = sc->mem_start;
    459  1.2.2.2  thorpej 	} else {
    460  1.2.2.2  thorpej 		sc->txb_cnt = 1;
    461  1.2.2.2  thorpej 		sc->tx_page_start = ELINK2_TX_PAGE_OFFSET_8BIT;
    462  1.2.2.2  thorpej 		sc->rec_page_start = sc->tx_page_start + ED_TXBUF_SIZE;
    463  1.2.2.2  thorpej 		sc->rec_page_stop = (memsize >> ED_PAGE_SHIFT) +
    464  1.2.2.2  thorpej 		    sc->tx_page_start;
    465  1.2.2.2  thorpej 		sc->mem_ring = sc->mem_start +
    466  1.2.2.2  thorpej 		    (ED_TXBUF_SIZE << ED_PAGE_SHIFT);
    467  1.2.2.2  thorpej 	}
    468  1.2.2.2  thorpej 
    469  1.2.2.2  thorpej 	/*
    470  1.2.2.2  thorpej 	 * Initialize CA page start/stop registers.  Probably only needed
    471  1.2.2.2  thorpej 	 * if doing DMA, but what the Hell.
    472  1.2.2.2  thorpej 	 */
    473  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_PSTR, sc->rec_page_start);
    474  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_PSPR, sc->rec_page_stop);
    475  1.2.2.2  thorpej 
    476  1.2.2.2  thorpej 	/*
    477  1.2.2.2  thorpej 	 * Program the IRQ.
    478  1.2.2.2  thorpej 	 */
    479  1.2.2.2  thorpej 	switch (ia->ia_irq) {
    480  1.2.2.2  thorpej 	case 9:	tmp = ELINK2_IDCFR_IRQ2; break;
    481  1.2.2.2  thorpej 	case 3:	tmp = ELINK2_IDCFR_IRQ3; break;
    482  1.2.2.2  thorpej 	case 4:	tmp = ELINK2_IDCFR_IRQ4; break;
    483  1.2.2.2  thorpej 	case 5:	tmp = ELINK2_IDCFR_IRQ5; break;
    484  1.2.2.2  thorpej 		break;
    485  1.2.2.2  thorpej 
    486  1.2.2.2  thorpej 	case IRQUNK:
    487  1.2.2.2  thorpej 		printf("%s: wildcarded IRQ is not allowed\n",
    488  1.2.2.2  thorpej 		    sc->sc_dev.dv_xname);
    489  1.2.2.2  thorpej 		return;
    490  1.2.2.2  thorpej 
    491  1.2.2.2  thorpej 	default:
    492  1.2.2.2  thorpej 		printf("%s: invalid IRQ %d, must be 3, 4, 5, or 9\n",
    493  1.2.2.2  thorpej 		    sc->sc_dev.dv_xname, ia->ia_irq);
    494  1.2.2.2  thorpej 		return;
    495  1.2.2.2  thorpej 	}
    496  1.2.2.2  thorpej 
    497  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_IDCFR, tmp);
    498  1.2.2.2  thorpej 
    499  1.2.2.2  thorpej 	/*
    500  1.2.2.2  thorpej 	 * Initialize the GA configuration register.  Set bank and enable
    501  1.2.2.2  thorpej 	 * shared memory.
    502  1.2.2.2  thorpej 	 */
    503  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_GACFR,
    504  1.2.2.2  thorpej 	    ELINK2_GACFR_RSEL | ELINK2_GACFR_MBS0);
    505  1.2.2.2  thorpej 
    506  1.2.2.2  thorpej 	/*
    507  1.2.2.2  thorpej 	 * Intialize "Vector Pointer" registers.  These gawd-awful things
    508  1.2.2.2  thorpej 	 * are compared to 20 bits of the address on the ISA, and if they
    509  1.2.2.2  thorpej 	 * match, the shared memory is disabled.  We se them to 0xffff0...
    510  1.2.2.2  thorpej 	 * allegedly the reset vector.
    511  1.2.2.2  thorpej 	 */
    512  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_VPTR2, 0xff);
    513  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_VPTR1, 0xff);
    514  1.2.2.2  thorpej 	bus_space_write_1(asict, asich, ELINK2_VPTR0, 0x00);
    515  1.2.2.2  thorpej 
    516  1.2.2.2  thorpej 	/*
    517  1.2.2.2  thorpej 	 * Now run the real memory test.
    518  1.2.2.2  thorpej 	 */
    519  1.2.2.2  thorpej 	if (ec_test_mem(sc)) {
    520  1.2.2.2  thorpej 		printf("%s: memory test failed\n", sc->sc_dev.dv_xname);
    521  1.2.2.2  thorpej 		return;
    522  1.2.2.2  thorpej 	}
    523  1.2.2.2  thorpej 
    524  1.2.2.2  thorpej 	/* Establish interrupt handler. */
    525  1.2.2.2  thorpej 	esc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
    526  1.2.2.2  thorpej 	    IPL_NET, dp8390_intr, sc);
    527  1.2.2.2  thorpej 	if (esc->sc_ih == NULL)
    528  1.2.2.2  thorpej 		printf("%s: can't establish interrupt\n", sc->sc_dev.dv_xname);
    529  1.2.2.2  thorpej }
    530  1.2.2.2  thorpej 
    531  1.2.2.2  thorpej int
    532  1.2.2.2  thorpej ec_fake_test_mem(sc)
    533  1.2.2.2  thorpej 	struct dp8390_softc *sc;
    534  1.2.2.2  thorpej {
    535  1.2.2.2  thorpej 
    536  1.2.2.2  thorpej 	/*
    537  1.2.2.2  thorpej 	 * We have to do this after we initialize the GA, but we
    538  1.2.2.2  thorpej 	 * have to do that after calling dp8390_config(), which
    539  1.2.2.2  thorpej 	 * wants to test memory.  Put this noop here, and then
    540  1.2.2.2  thorpej 	 * actually test memory later.
    541  1.2.2.2  thorpej 	 */
    542  1.2.2.2  thorpej 	return (0);
    543  1.2.2.2  thorpej }
    544  1.2.2.2  thorpej 
    545  1.2.2.2  thorpej int
    546  1.2.2.2  thorpej ec_test_mem(sc)
    547  1.2.2.2  thorpej 	struct dp8390_softc *sc;
    548  1.2.2.2  thorpej {
    549  1.2.2.2  thorpej 	struct ec_softc *esc = (struct ec_softc *)sc;
    550  1.2.2.2  thorpej 	bus_space_tag_t memt = sc->sc_buft;
    551  1.2.2.2  thorpej 	bus_space_handle_t memh = sc->sc_bufh;
    552  1.2.2.2  thorpej 	bus_size_t memsize = sc->mem_size;
    553  1.2.2.2  thorpej 	int i;
    554  1.2.2.2  thorpej 
    555  1.2.2.2  thorpej 	if (esc->sc_16bitp)
    556  1.2.2.2  thorpej 		bus_space_set_region_2(memt, memh, 0, 0, memsize >> 1);
    557  1.2.2.2  thorpej 	else
    558  1.2.2.2  thorpej 		bus_space_set_region_1(memt, memh, 0, 0, memsize);
    559  1.2.2.2  thorpej 
    560  1.2.2.2  thorpej 	if (esc->sc_16bitp) {
    561  1.2.2.2  thorpej 		for (i = 0; i < memsize; i += 2) {
    562  1.2.2.2  thorpej 			if (bus_space_read_2(memt, memh, i) != 0)
    563  1.2.2.2  thorpej 				goto fail;
    564  1.2.2.2  thorpej 		}
    565  1.2.2.2  thorpej 	} else {
    566  1.2.2.2  thorpej 		for (i = 0; i < memsize; i++) {
    567  1.2.2.2  thorpej 			if (bus_space_read_1(memt, memh, i) != 0)
    568  1.2.2.2  thorpej 				goto fail;
    569  1.2.2.2  thorpej 		}
    570  1.2.2.2  thorpej 	}
    571  1.2.2.2  thorpej 
    572  1.2.2.2  thorpej 	return (0);
    573  1.2.2.2  thorpej 
    574  1.2.2.2  thorpej  fail:
    575  1.2.2.2  thorpej 	printf("%s: failed to clear shared memory at offset 0x%x\n",
    576  1.2.2.2  thorpej 	    sc->sc_dev.dv_xname, i);
    577  1.2.2.2  thorpej 	return (1);
    578  1.2.2.2  thorpej }
    579  1.2.2.2  thorpej 
    580  1.2.2.2  thorpej __inline void
    581  1.2.2.2  thorpej ec_writemem(esc, from, to, len)
    582  1.2.2.2  thorpej 	struct ec_softc *esc;
    583  1.2.2.2  thorpej 	u_int8_t *from;
    584  1.2.2.2  thorpej 	int to, len;
    585  1.2.2.2  thorpej {
    586  1.2.2.2  thorpej 	bus_space_tag_t memt = esc->sc_dp8390.sc_buft;
    587  1.2.2.2  thorpej 	bus_space_handle_t memh = esc->sc_dp8390.sc_bufh;
    588  1.2.2.2  thorpej 
    589  1.2.2.2  thorpej 	if (esc->sc_16bitp) {
    590  1.2.2.2  thorpej 		bus_space_write_region_2(memt, memh, to, (u_int16_t *)from,
    591  1.2.2.2  thorpej 		    len >> 1);
    592  1.2.2.2  thorpej 		if (len & 1)
    593  1.2.2.2  thorpej 			bus_space_write_2(memt, memh, to + (len & ~1),
    594  1.2.2.2  thorpej 			    (u_int16_t)(*(from + (len & ~1))));
    595  1.2.2.2  thorpej 	} else
    596  1.2.2.2  thorpej 		bus_space_write_region_1(memt, memh, to, from, len);
    597  1.2.2.2  thorpej }
    598  1.2.2.2  thorpej 
    599  1.2.2.2  thorpej __inline void
    600  1.2.2.2  thorpej ec_readmem(esc, from, to, len)
    601  1.2.2.2  thorpej 	struct ec_softc *esc;
    602  1.2.2.2  thorpej 	int from;
    603  1.2.2.2  thorpej 	u_int8_t *to;
    604  1.2.2.2  thorpej 	int len;
    605  1.2.2.2  thorpej {
    606  1.2.2.2  thorpej 	bus_space_tag_t memt = esc->sc_dp8390.sc_buft;
    607  1.2.2.2  thorpej 	bus_space_handle_t memh = esc->sc_dp8390.sc_bufh;
    608  1.2.2.2  thorpej 
    609  1.2.2.2  thorpej 	if (esc->sc_16bitp) {
    610  1.2.2.2  thorpej 		bus_space_read_region_2(memt, memh, from, (u_int16_t *)to,
    611  1.2.2.2  thorpej 		    len >> 1);
    612  1.2.2.2  thorpej 		if (len & 1)
    613  1.2.2.2  thorpej 			*(to + (len & ~1)) = bus_space_read_2(memt,
    614  1.2.2.2  thorpej 			    memh, from + (len & ~1)) & 0xff;
    615  1.2.2.2  thorpej 	} else
    616  1.2.2.2  thorpej 		bus_space_read_region_1(memt, memh, from, to, len);
    617  1.2.2.2  thorpej }
    618  1.2.2.2  thorpej 
    619  1.2.2.2  thorpej int
    620  1.2.2.2  thorpej ec_write_mbuf(sc, m, buf)
    621  1.2.2.2  thorpej 	struct dp8390_softc *sc;
    622  1.2.2.2  thorpej 	struct mbuf *m;
    623  1.2.2.2  thorpej 	int buf;
    624  1.2.2.2  thorpej {
    625  1.2.2.2  thorpej 	struct ec_softc *esc = (struct ec_softc *)sc;
    626  1.2.2.2  thorpej 	bus_space_tag_t asict = esc->sc_asict;
    627  1.2.2.2  thorpej 	bus_space_handle_t asich = esc->sc_asich;
    628  1.2.2.2  thorpej 	int savelen;
    629  1.2.2.2  thorpej 
    630  1.2.2.2  thorpej 	savelen = m->m_pkthdr.len;
    631  1.2.2.2  thorpej 
    632  1.2.2.2  thorpej 	/*
    633  1.2.2.2  thorpej 	 * If it's a 16-bit board, we have transmit buffers
    634  1.2.2.2  thorpej 	 * in a different page; switch to it.
    635  1.2.2.2  thorpej 	 */
    636  1.2.2.2  thorpej 	if (esc->sc_16bitp)
    637  1.2.2.2  thorpej 		bus_space_write_1(asict, asich, ELINK2_GACFR,
    638  1.2.2.2  thorpej 		    ELINK2_GACFR_RSEL);
    639  1.2.2.2  thorpej 
    640  1.2.2.2  thorpej 	for (; m != NULL; buf += m->m_len, m = m->m_next)
    641  1.2.2.2  thorpej 		ec_writemem(esc, mtod(m, u_int8_t *), buf, m->m_len);
    642  1.2.2.2  thorpej 
    643  1.2.2.2  thorpej 	/*
    644  1.2.2.2  thorpej 	 * Switch back to receive page.
    645  1.2.2.2  thorpej 	 */
    646  1.2.2.2  thorpej 	if (esc->sc_16bitp)
    647  1.2.2.2  thorpej 		bus_space_write_1(asict, asich, ELINK2_GACFR,
    648  1.2.2.2  thorpej 		    ELINK2_GACFR_RSEL | ELINK2_GACFR_MBS0);
    649  1.2.2.2  thorpej 
    650  1.2.2.2  thorpej 	return (savelen);
    651  1.2.2.2  thorpej }
    652  1.2.2.2  thorpej 
    653  1.2.2.2  thorpej int
    654  1.2.2.2  thorpej ec_ring_copy(sc, src, dst, amount)
    655  1.2.2.2  thorpej 	struct dp8390_softc *sc;
    656  1.2.2.2  thorpej 	int src;
    657  1.2.2.2  thorpej 	caddr_t dst;
    658  1.2.2.2  thorpej 	u_short amount;
    659  1.2.2.2  thorpej {
    660  1.2.2.2  thorpej 	struct ec_softc *esc = (struct ec_softc *)sc;
    661  1.2.2.2  thorpej 	u_short tmp_amount;
    662  1.2.2.2  thorpej 
    663  1.2.2.2  thorpej 	/* Does copy wrap to lower addr in ring buffer? */
    664  1.2.2.2  thorpej 	if (src + amount > sc->mem_end) {
    665  1.2.2.2  thorpej 		tmp_amount = sc->mem_end - src;
    666  1.2.2.2  thorpej 
    667  1.2.2.2  thorpej 		/* Copy amount up to end of NIC memory. */
    668  1.2.2.2  thorpej 		ec_readmem(esc, src, dst, tmp_amount);
    669  1.2.2.2  thorpej 
    670  1.2.2.2  thorpej 		amount -= tmp_amount;
    671  1.2.2.2  thorpej 		src = sc->mem_ring;
    672  1.2.2.2  thorpej 		dst += tmp_amount;
    673  1.2.2.2  thorpej 	}
    674  1.2.2.2  thorpej 
    675  1.2.2.2  thorpej 	ec_readmem(esc, src, dst, amount);
    676  1.2.2.2  thorpej 
    677  1.2.2.2  thorpej 	return (src + amount);
    678  1.2.2.2  thorpej }
    679  1.2.2.2  thorpej 
    680  1.2.2.2  thorpej void
    681  1.2.2.2  thorpej ec_read_hdr(sc, packet_ptr, packet_hdrp)
    682  1.2.2.2  thorpej 	struct dp8390_softc *sc;
    683  1.2.2.2  thorpej 	int packet_ptr;
    684  1.2.2.2  thorpej 	struct dp8390_ring *packet_hdrp;
    685  1.2.2.2  thorpej {
    686  1.2.2.2  thorpej 	struct ec_softc *esc = (struct ec_softc *)sc;
    687  1.2.2.2  thorpej 
    688  1.2.2.2  thorpej 	ec_readmem(esc, packet_ptr, (u_int8_t *)packet_hdrp,
    689  1.2.2.2  thorpej 	    sizeof(struct dp8390_ring));
    690  1.2.2.2  thorpej }
    691  1.2.2.2  thorpej 
    692  1.2.2.2  thorpej int
    693  1.2.2.2  thorpej ec_mediachange(sc)
    694  1.2.2.2  thorpej 	struct dp8390_softc *sc;
    695  1.2.2.2  thorpej {
    696  1.2.2.2  thorpej 	struct ec_softc *esc = (struct ec_softc *)sc;
    697  1.2.2.2  thorpej 	struct ifmedia *ifm = &sc->sc_media;
    698  1.2.2.2  thorpej 
    699  1.2.2.2  thorpej 	return (ec_set_media(esc, ifm->ifm_media));
    700  1.2.2.2  thorpej }
    701  1.2.2.2  thorpej 
    702  1.2.2.2  thorpej void
    703  1.2.2.2  thorpej ec_mediastatus(sc, ifmr)
    704  1.2.2.2  thorpej 	struct dp8390_softc *sc;
    705  1.2.2.2  thorpej 	struct ifmediareq *ifmr;
    706  1.2.2.2  thorpej {
    707  1.2.2.2  thorpej 	struct ifmedia *ifm = &sc->sc_media;
    708  1.2.2.2  thorpej 
    709  1.2.2.2  thorpej 	/*
    710  1.2.2.2  thorpej 	 * The currently selected media is always the active media.
    711  1.2.2.2  thorpej 	 */
    712  1.2.2.2  thorpej 	ifmr->ifm_active = ifm->ifm_cur->ifm_media;
    713  1.2.2.2  thorpej }
    714  1.2.2.2  thorpej 
    715  1.2.2.2  thorpej void
    716  1.2.2.2  thorpej ec_init_card(sc)
    717  1.2.2.2  thorpej 	struct dp8390_softc *sc;
    718  1.2.2.2  thorpej {
    719  1.2.2.2  thorpej 	struct ec_softc *esc = (struct ec_softc *)sc;
    720  1.2.2.2  thorpej 	struct ifmedia *ifm = &sc->sc_media;
    721  1.2.2.2  thorpej 
    722  1.2.2.2  thorpej 	(void) ec_set_media(esc, ifm->ifm_cur->ifm_media);
    723  1.2.2.2  thorpej }
    724  1.2.2.2  thorpej 
    725  1.2.2.2  thorpej int
    726  1.2.2.2  thorpej ec_set_media(esc, media)
    727  1.2.2.2  thorpej 	struct ec_softc *esc;
    728  1.2.2.2  thorpej 	int media;
    729  1.2.2.2  thorpej {
    730  1.2.2.2  thorpej 	u_int8_t new;
    731  1.2.2.2  thorpej 
    732  1.2.2.2  thorpej 	if (IFM_TYPE(media) != IFM_ETHER)
    733  1.2.2.2  thorpej 		return (EINVAL);
    734  1.2.2.2  thorpej 
    735  1.2.2.2  thorpej 	switch (IFM_SUBTYPE(media)) {
    736  1.2.2.2  thorpej 	case IFM_10_2:
    737  1.2.2.2  thorpej 		new = ELINK2_CR_XSEL;
    738  1.2.2.2  thorpej 		break;
    739  1.2.2.2  thorpej 
    740  1.2.2.2  thorpej 	case IFM_10_5:
    741  1.2.2.2  thorpej 		new = 0;
    742  1.2.2.2  thorpej 		break;
    743  1.2.2.2  thorpej 
    744  1.2.2.2  thorpej 	default:
    745  1.2.2.2  thorpej 		return (EINVAL);
    746  1.2.2.2  thorpej 	}
    747  1.2.2.2  thorpej 
    748  1.2.2.2  thorpej 	bus_space_write_1(esc->sc_asict, esc->sc_asich, ELINK2_CR, new);
    749  1.2.2.2  thorpej 	return (0);
    750  1.2.2.2  thorpej }
    751