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Annotation of sys/arch/vax/if/if_ze.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: if_ze.c,v 1.7 2006/08/30 19:28:11 miod Exp $  */
                      2: /*      $NetBSD: if_ze.c,v 1.3 2000/01/24 02:54:03 matt Exp $ */
                      3: /*
                      4:  * Copyright (c) 1999 Ludd, University of Lule}, Sweden. All rights reserved.
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  * 1. Redistributions of source code must retain the above copyright
                     10:  *    notice, this list of conditions and the following disclaimer.
                     11:  * 2. Redistributions in binary form must reproduce the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer in the
                     13:  *    documentation and/or other materials provided with the distribution.
                     14:  * 3. All advertising materials mentioning features or use of this software
                     15:  *    must display the following acknowledgement:
                     16:  *      This product includes software developed at Ludd, University of
                     17:  *      Lule}, Sweden and its contributors.
                     18:  * 4. The name of the author may not be used to endorse or promote products
                     19:  *    derived from this software without specific prior written permission
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     22:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     23:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     24:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     25:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     26:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     27:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     28:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     29:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     30:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     31:  */
                     32:
                     33: #include <sys/param.h>
                     34: #include <sys/socket.h>
                     35: #include <sys/device.h>
                     36: #include <sys/systm.h>
                     37: #include <sys/sockio.h>
                     38:
                     39: #include <net/if.h>
                     40: #include <net/if_dl.h>
                     41: #include <netinet/in.h>
                     42: #include <netinet/if_ether.h>
                     43:
                     44: #if NBPFILTER > 0
                     45: #include <net/bpf.h>
                     46: #include <net/bpfdesc.h>
                     47: #endif
                     48:
                     49: #include <machine/bus.h>
                     50: #include <machine/nexus.h>
                     51: #include <machine/cpu.h>
                     52: #include <machine/scb.h>
                     53: #include <machine/sid.h>
                     54:
                     55: #include <arch/vax/if/sgecreg.h>
                     56: #include <arch/vax/if/sgecvar.h>
                     57:
                     58: /*
                     59:  * Addresses.
                     60:  */
                     61: #define SGECADDR        0x20008000
                     62: #define NISA_ROM        0x20084000
                     63: #define        SGECVEC         0x108
                     64:
                     65: static int     zematch(struct device *, struct cfdata *, void *);
                     66: static void    zeattach(struct device *, struct device *, void *);
                     67:
                     68: struct cfattach ze_ibus_ca = {
                     69:        sizeof(struct ze_softc), (cfmatch_t)zematch, zeattach
                     70: };
                     71:
                     72: /*
                     73:  * Check for present SGEC.
                     74:  */
                     75: int
                     76: zematch(parent, cf, aux)
                     77:        struct  device *parent;
                     78:        struct  cfdata *cf;
                     79:        void    *aux;
                     80: {
                     81:        struct bp_conf *bp = aux;
                     82:
                     83:        /*
                     84:         * Should some more intelligent checking be done???
                     85:         */
                     86:        if (strcmp(bp->type, "sgec") == 0)
                     87:                return 1;
                     88:        return 0;
                     89: }
                     90:
                     91: /*
                     92:  * Interface exists: make available by filling in network interface
                     93:  * record.  System will initialize the interface when it is ready
                     94:  * to accept packets.
                     95:  */
                     96: void
                     97: zeattach(parent, self, aux)
                     98:        struct  device *parent, *self;
                     99:        void    *aux;
                    100: {
                    101:        extern struct vax_bus_dma_tag vax_bus_dma_tag;
                    102:        struct  ze_softc *sc = (struct ze_softc *)self;
                    103:        int *ea, i;
                    104:
                    105:        /*
                    106:         * Map in SGEC registers.
                    107:         */
                    108:        sc->sc_ioh = vax_map_physmem(SGECADDR, 1);
                    109:        sc->sc_iot = 0; /* :-) */
                    110:        sc->sc_dmat = &vax_bus_dma_tag;
                    111:
                    112:        sc->sc_intvec = SGECVEC;
                    113:
                    114:        /*
                    115:         * Map in, read and release ethernet rom address.
                    116:         */
                    117:        ea = (int *)vax_map_physmem(NISA_ROM, 1);
                    118:        for (i = 0; i < ETHER_ADDR_LEN; i++)
                    119:                if (vax_boardtype == VAX_BTYP_660)
                    120:                        sc->sc_ac.ac_enaddr[i] = (ea[i] >> 24) & 0377;
                    121:                else
                    122:                        sc->sc_ac.ac_enaddr[i] = (ea[i] >> 8) & 0377;
                    123:
                    124:        vax_unmap_physmem((vaddr_t)ea, 1);
                    125:
                    126:        scb_vecalloc(SGECVEC, (void (*)(void *)) sgec_intr, sc,
                    127:            SCB_ISTACK, &sc->sc_intrcnt);
                    128:        evcount_attach(&sc->sc_intrcnt, sc->sc_dev.dv_xname,
                    129:            (void *)&sc->sc_intvec, &evcount_intr);
                    130:
                    131:        sgec_attach(sc);
                    132: }