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Annotation of sys/dev/tc/if_fta.c, Revision 1.1.1.1

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: };