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if_le_vsbus.c revision 1.3
      1 /*	$NetBSD: if_le_vsbus.c,v 1.3 2000/01/24 02:54:03 matt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Charles M. Hannum.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	  This product includes software developed by the NetBSD
     21  *	  Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*-
     40  * Copyright (c) 1992, 1993
     41  *	The Regents of the University of California.  All rights reserved.
     42  *
     43  * This code is derived from software contributed to Berkeley by
     44  * Ralph Campbell and Rick Macklem.
     45  *
     46  * Redistribution and use in source and binary forms, with or without
     47  * modification, are permitted provided that the following conditions
     48  * are met:
     49  * 1. Redistributions of source code must retain the above copyright
     50  *    notice, this list of conditions and the following disclaimer.
     51  * 2. Redistributions in binary form must reproduce the above copyright
     52  *    notice, this list of conditions and the following disclaimer in the
     53  *    documentation and/or other materials provided with the distribution.
     54  * 3. All advertising materials mentioning features or use of this software
     55  *    must display the following acknowledgement:
     56  *	This product includes software developed by the University of
     57  *	California, Berkeley and its contributors.
     58  * 4. Neither the name of the University nor the names of its contributors
     59  *    may be used to endorse or promote products derived from this software
     60  *    without specific prior written permission.
     61  *
     62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     72  * SUCH DAMAGE.
     73  *
     74  *	@(#)if_le.c	8.2 (Berkeley) 11/16/93
     75  */
     76 
     77 #include "opt_inet.h"
     78 #include "bpfilter.h"
     79 
     80 #include <sys/param.h>
     81 #include <sys/syslog.h>
     82 #include <sys/socket.h>
     83 #include <sys/device.h>
     84 #include <sys/reboot.h>
     85 
     86 #include <vm/vm.h>
     87 #include <vm/vm_kern.h>
     88 
     89 #include <net/if.h>
     90 #include <net/if_ether.h>
     91 #include <net/if_media.h>
     92 
     93 #if INET
     94 #include <netinet/in.h>
     95 #include <netinet/if_inarp.h>
     96 #endif
     97 
     98 #include <machine/cpu.h>
     99 #include <machine/sid.h>
    100 #include <machine/scb.h>
    101 #include <machine/bus.h>
    102 #include <machine/rpb.h>
    103 #include <machine/vsbus.h>
    104 
    105 #include <dev/ic/lancereg.h>
    106 #include <dev/ic/lancevar.h>
    107 #include <dev/ic/am7990reg.h>
    108 #include <dev/ic/am7990var.h>
    109 
    110 #include "ioconf.h"
    111 
    112 struct le_softc {
    113 	struct	am7990_softc sc_am7990; /* Must be first */
    114 	volatile u_short *sc_rap;
    115 	volatile u_short *sc_rdp;
    116 };
    117 
    118 int	le_vsbus_match __P((struct device *, struct cfdata *, void *));
    119 void	le_vsbus_attach __P((struct device *, struct device *, void *));
    120 static	void	lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
    121 static	u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
    122 
    123 struct cfattach le_vsbus_ca = {
    124 	sizeof(struct le_softc), le_vsbus_match, le_vsbus_attach
    125 };
    126 
    127 void
    128 lewrcsr(ls, port, val)
    129 	struct lance_softc *ls;
    130 	u_int16_t port, val;
    131 {
    132 	struct le_softc *sc = (void *)ls;
    133 
    134 	*sc->sc_rap = port;
    135 	*sc->sc_rdp = val;
    136 }
    137 
    138 u_int16_t
    139 lerdcsr(ls, port)
    140 	struct lance_softc *ls;
    141 	u_int16_t port;
    142 {
    143 	struct le_softc *sc = (void *)ls;
    144 
    145 	*sc->sc_rap = port;
    146 	return *sc->sc_rdp;
    147 }
    148 
    149 int
    150 le_vsbus_match(parent, cf, aux)
    151 	struct device *parent;
    152 	struct cfdata *cf;
    153 	void *aux;
    154 {
    155 	struct  vsbus_attach_args *va = aux;
    156 	volatile short *rdp, *rap;
    157 
    158 	if (vax_boardtype == VAX_BTYP_49)
    159 		return 0;
    160 	rdp = (short *)va->va_addr;
    161 	rap = rdp + 2;
    162 
    163 	/* Make sure the chip is stopped. */
    164 	*rap = LE_CSR0;
    165 	*rdp = LE_C0_STOP;
    166 	DELAY(100);
    167 	*rdp = LE_C0_INIT|LE_C0_INEA;
    168 
    169 	/* Wait for initialization to finish. */
    170 	DELAY(100000);
    171 
    172 	/* Should have interrupted by now */
    173 	if (*rdp & LE_C0_IDON)
    174 		return 1;
    175 	return 0;
    176 }
    177 
    178 void
    179 le_vsbus_attach(parent, self, aux)
    180 	struct device *parent, *self;
    181 	void *aux;
    182 {
    183 	struct  vsbus_attach_args *va = aux;
    184 	struct le_softc *sc = (void *)self;
    185 	bus_dma_segment_t seg;
    186 	int *lance_addr;
    187 	int i, err, rseg;
    188 
    189 	sc->sc_rdp = (short *)vax_map_physmem(NI_BASE, 1);
    190 	sc->sc_rap = sc->sc_rdp + 2;
    191 
    192 	/* Prettier printout */
    193 	printf("\n%s", self->dv_xname);
    194 
    195 	/*
    196 	 * MD functions.
    197 	 */
    198 	sc->sc_am7990.lsc.sc_rdcsr = lerdcsr;
    199 	sc->sc_am7990.lsc.sc_wrcsr = lewrcsr;
    200 	sc->sc_am7990.lsc.sc_nocarrier = NULL;
    201 
    202 	scb_vecalloc(va->va_cvec, (void (*)(void *)) am7990_intr, sc, SCB_ISTACK);
    203         /*
    204          * Allocate a (DMA-safe) block for all descriptors and buffers.
    205          */
    206 
    207 #define ALLOCSIZ (64 * 1024)
    208         err = bus_dmamem_alloc(va->va_dmat, ALLOCSIZ, NBPG, 0,
    209             &seg, 1, &rseg, BUS_DMA_NOWAIT);
    210         if (err) {
    211                 printf(": unable to alloc buffer block: err %d\n", err);
    212                 return;
    213         }
    214         err = bus_dmamem_map(va->va_dmat, &seg, rseg, ALLOCSIZ,
    215             (caddr_t *)&sc->sc_am7990.lsc.sc_mem,
    216 	    BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
    217         if (err) {
    218                 printf(": unable to map buffer block: err %d\n", err);
    219                 bus_dmamem_free(va->va_dmat, &seg, rseg);
    220                 return;
    221         }
    222 	sc->sc_am7990.lsc.sc_addr =
    223 	    (paddr_t)sc->sc_am7990.lsc.sc_mem & 0xffffff;
    224 	sc->sc_am7990.lsc.sc_memsize = ALLOCSIZ;
    225 
    226 	sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_contig;
    227 	sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_contig;
    228 	sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_contig;
    229 	sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_contig;
    230 	sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_contig;
    231 
    232 	/*
    233 	 * Get the ethernet address out of rom
    234 	 */
    235 	lance_addr = (int *)vax_map_physmem(NI_ADDR, 1);
    236 	for (i = 0; i < 6; i++)
    237 		sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i];
    238 	vax_unmap_physmem((vaddr_t)lance_addr, 1);
    239 
    240 	bcopy(self->dv_xname, sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname,
    241 	    IFNAMSIZ);
    242 	am7990_config(&sc->sc_am7990);
    243 
    244 	/*
    245 	 * Register this device as boot device if we booted from it.
    246 	 * This will fail if there are more than one le in a machine,
    247 	 * fortunately there may be only one.
    248 	 */
    249 	if (B_TYPE(bootdev) == BDEV_LE)
    250 		booted_from = self;
    251 }
    252