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Annotation of sys/dev/tc/if_fta.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: if_fta.c,v 1.13 2007/04/12 17:05:20 miod Exp $        */
        !             2: /*     $NetBSD: if_fta.c,v 1.7 1996/10/22 21:37:26 cgd Exp $   */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 1996 Matt Thomas <matt@3am-software.com>
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. The name of the author may not be used to endorse or promote products
        !            14:  *    derived from this software without specific prior written permission
        !            15:  *
        !            16:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            17:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            18:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            19:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            20:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            21:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            22:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            23:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            24:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            25:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            26:  *
        !            27:  * Id: if_fta.c,v 1.3 1996/05/17 01:15:18 thomas Exp
        !            28:  *
        !            29:  */
        !            30:
        !            31: /*
        !            32:  * DEC TurboChannel FDDI Controller; code for BSD derived operating systems
        !            33:  *
        !            34:  * Written by Matt Thomas
        !            35:  *
        !            36:  *   This module supports the DEC DEFTA TurboChannel FDDI Controller
        !            37:  */
        !            38:
        !            39:
        !            40: #include <sys/param.h>
        !            41: #include <sys/kernel.h>
        !            42: #include <sys/mbuf.h>
        !            43: #include <sys/protosw.h>
        !            44: #include <sys/socket.h>
        !            45: #include <sys/ioctl.h>
        !            46: #include <sys/errno.h>
        !            47: #include <sys/malloc.h>
        !            48: #include <sys/device.h>
        !            49:
        !            50: #include <net/if.h>
        !            51: #include <net/if_types.h>
        !            52:
        !            53: #ifdef INET
        !            54: #include <netinet/in.h>
        !            55: #include <netinet/if_ether.h>
        !            56: #endif
        !            57: #include <net/if_fddi.h>
        !            58:
        !            59: #include <uvm/uvm_extern.h>
        !            60:
        !            61: #include <dev/tc/tcvar.h>
        !            62: #include <dev/ic/pdqvar.h>
        !            63: #include <dev/ic/pdqreg.h>
        !            64:
        !            65: int    pdq_tc_match(struct device *, void *, void *);
        !            66: void   pdq_tc_attach(struct device *, struct device *, void *);
        !            67:
        !            68: int
        !            69: pdq_tc_match(parent, match, aux)
        !            70:        struct device *parent;
        !            71:        void *match;
        !            72:        void *aux;
        !            73: {
        !            74:        struct tc_attach_args *ta = (struct tc_attach_args *) aux;
        !            75:
        !            76:        if (strncmp("PMAF-F", ta->ta_modname, 6) == 0)
        !            77:                return (1);
        !            78:        return (0);
        !            79: }
        !            80:
        !            81: void
        !            82: pdq_tc_attach(parent, self, aux)
        !            83:        struct device *parent;
        !            84:        struct device *self;
        !            85:        void *aux;
        !            86: {
        !            87:        pdq_softc_t * const sc = (pdq_softc_t *) self;
        !            88:        struct tc_attach_args * const ta = (struct tc_attach_args *) aux;
        !            89:
        !            90:        /*
        !            91:         * NOTE: sc_bc is an alias for sc_csrtag and sc_membase is an
        !            92:         * alias for sc_csrhandle.  sc_iobase is not used in this front-end.
        !            93:         */
        !            94:        sc->sc_csrtag = ta->ta_memt;
        !            95:        bcopy(sc->sc_dev.dv_xname, sc->sc_if.if_xname, IFNAMSIZ);
        !            96:        sc->sc_if.if_flags = 0;
        !            97:        sc->sc_if.if_softc = sc;
        !            98:
        !            99:        if (bus_space_map(sc->sc_csrtag, ta->ta_addr + PDQ_TC_CSR_OFFSET,
        !           100:                    PDQ_TC_CSR_SPACE, 0, &sc->sc_csrhandle)) {
        !           101:                printf("\n%s: can't map card memory!\n", sc->sc_dev.dv_xname);
        !           102:                return;
        !           103:        }
        !           104:
        !           105:        printf("\n");
        !           106:        sc->sc_pdq = pdq_initialize(sc->sc_csrtag, sc->sc_csrhandle,
        !           107:            sc->sc_if.if_xname, 0, (void *) sc, PDQ_DEFTA);
        !           108:        if (sc->sc_pdq == NULL) {
        !           109:                printf("%s: initialization failed\n", sc->sc_dev.dv_xname);
        !           110:                return;
        !           111:        }
        !           112:        bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes,
        !           113:            sc->sc_arpcom.ac_enaddr, 6);
        !           114:        pdq_ifattach(sc, NULL);
        !           115:
        !           116:        tc_intr_establish(parent, ta->ta_cookie, TC_IPL_NET,
        !           117:            (int (*)(void *)) pdq_interrupt, sc->sc_pdq);
        !           118:
        !           119:        sc->sc_ats = shutdownhook_establish((void (*)(void *)) pdq_hwreset,
        !           120:            sc->sc_pdq);
        !           121:        if (sc->sc_ats == NULL)
        !           122:                printf("%s: warning: couldn't establish shutdown hook\n",
        !           123:                    self->dv_xname);
        !           124: }
        !           125:
        !           126: struct cfattach fta_ca = {
        !           127:        sizeof(pdq_softc_t), pdq_tc_match, pdq_tc_attach
        !           128: };
        !           129:
        !           130: struct cfdriver fta_cd = {
        !           131:        0, "fta", DV_IFNET
        !           132: };