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

1.1     ! nbrk        1: /*     $OpenBSD: if_le_tc.c,v 1.8 2007/06/17 21:20:47 jasper Exp $     */
        !             2: /*     $NetBSD: if_le_tc.c,v 1.12 2001/11/13 06:26:10 lukem Exp $      */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1996 Carnegie-Mellon University.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Author: Chris G. Demetriou
        !             9:  *
        !            10:  * Permission to use, copy, modify and distribute this software and
        !            11:  * its documentation is hereby granted, provided that both the copyright
        !            12:  * notice and this permission notice appear in all copies of the
        !            13:  * software, derivative works or modified versions, and any portions
        !            14:  * thereof, and that both notices appear in supporting documentation.
        !            15:  *
        !            16:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            17:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
        !            18:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            19:  *
        !            20:  * Carnegie Mellon requests users of this software to return to
        !            21:  *
        !            22:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
        !            23:  *  School of Computer Science
        !            24:  *  Carnegie Mellon University
        !            25:  *  Pittsburgh PA 15213-3890
        !            26:  *
        !            27:  * any improvements or extensions that they make and grant Carnegie the
        !            28:  * rights to redistribute these changes.
        !            29:  */
        !            30:
        !            31: /*
        !            32:  * LANCE on TurboChannel.
        !            33:  */
        !            34:
        !            35: #include <sys/param.h>
        !            36: #include <sys/systm.h>
        !            37: #include <sys/mbuf.h>
        !            38: #include <sys/syslog.h>
        !            39: #include <sys/socket.h>
        !            40: #include <sys/device.h>
        !            41:
        !            42: #include <net/if.h>
        !            43: #include <net/if_media.h>
        !            44:
        !            45: #ifdef INET
        !            46: #include <netinet/in.h>
        !            47: #include <netinet/if_ether.h>
        !            48: #endif
        !            49:
        !            50: #include <dev/ic/am7990reg.h>
        !            51: #include <dev/ic/am7990var.h>
        !            52:
        !            53: #include <dev/tc/if_levar.h>
        !            54: #include <dev/tc/tcvar.h>
        !            55:
        !            56: int    le_tc_match(struct device *, void *, void *);
        !            57: void   le_tc_attach(struct device *, struct device *, void *);
        !            58:
        !            59: struct cfattach le_tc_ca = {
        !            60:        sizeof(struct le_softc), le_tc_match, le_tc_attach
        !            61: };
        !            62:
        !            63: #define        LE_OFFSET_RAM           0x0
        !            64: #define        LE_OFFSET_LANCE         0x100000
        !            65: #define        LE_OFFSET_ROM           0x1c0000
        !            66:
        !            67: int
        !            68: le_tc_match(struct device *parent, void *match, void *aux)
        !            69: {
        !            70:        struct tc_attach_args *d = aux;
        !            71:
        !            72:        if (strncmp("PMAD-AA ", d->ta_modname, TC_ROM_LLEN) != 0)
        !            73:                return (0);
        !            74:
        !            75:        return (1);
        !            76: }
        !            77:
        !            78: void
        !            79: le_tc_attach(struct device *parent, struct device *self, void *aux)
        !            80: {
        !            81:        struct le_softc *lesc = (void *)self;
        !            82:        struct am7990_softc *sc = &lesc->sc_am7990;
        !            83:        struct tc_attach_args *d = aux;
        !            84:
        !            85:        /*
        !            86:         * It's on the turbochannel proper, or a kn02
        !            87:         * baseboard implementation of a TC option card.
        !            88:         */
        !            89:        lesc->sc_r1 = (struct lereg1 *)
        !            90:            TC_DENSE_TO_SPARSE(TC_PHYS_TO_UNCACHED(d->ta_addr + LE_OFFSET_LANCE));
        !            91:        sc->sc_mem = (void *)(d->ta_addr + LE_OFFSET_RAM);
        !            92:
        !            93:        sc->sc_copytodesc = am7990_copytobuf_contig;
        !            94:        sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
        !            95:        sc->sc_copytobuf = am7990_copytobuf_contig;
        !            96:        sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
        !            97:        sc->sc_zerobuf = am7990_zerobuf_contig;
        !            98:
        !            99:        /*
        !           100:         * TC lance boards have onboard SRAM buffers.  DMA
        !           101:         * between the onbard RAM and main memory is not possible,
        !           102:         * so  DMA setup is not required.
        !           103:         */
        !           104:
        !           105:        dec_le_common_attach(&lesc->sc_am7990,
        !           106:                             (u_char *)(d->ta_addr + LE_OFFSET_ROM + 2));
        !           107:
        !           108:        tc_intr_establish(parent, d->ta_cookie, TC_IPL_NET, am7990_intr, sc);
        !           109: }