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Annotation of sys/arch/luna88k/dev/spc.c, Revision 1.1.1.1

1.1       nbrk        1: /* $OpenBSD: spc.c,v 1.4 2005/04/04 13:09:51 aoyama Exp $ */
                      2: /* $NetBSD: spc.c,v 1.4 2003/07/05 19:00:17 tsutsui Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 2000 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Tohru Nishimura.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *     This product includes software developed by the NetBSD
                     22:  *     Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: #include <sys/param.h>
                     41: #include <sys/systm.h>
                     42: #include <sys/device.h>
                     43: #include <sys/buf.h>
                     44:
                     45: #include <machine/bus.h>
                     46: #include <machine/cpu.h>
                     47: #include <machine/autoconf.h>
                     48:
                     49: #include <scsi/scsi_all.h>
                     50: #include <scsi/scsi_message.h>
                     51: #include <scsi/scsiconf.h>
                     52:
                     53: #include <luna88k/dev/mb89352reg.h>
                     54: #include <luna88k/dev/mb89352var.h>
                     55:
                     56: #include <luna88k/luna88k/isr.h>
                     57:
                     58: int  spc_mainbus_match(struct device *, void *, void *);
                     59: void spc_mainbus_attach(struct device *, struct device *, void *);
                     60:
                     61: struct cfattach spc_ca = {
                     62:        sizeof(struct spc_softc), spc_mainbus_match, spc_mainbus_attach
                     63: };
                     64:
                     65: struct cfdriver spc_cd = {
                     66:        NULL, "spc", DV_DULL
                     67: };
                     68:
                     69: struct scsi_adapter spc_switch = {
                     70:        spc_scsi_cmd,
                     71:         minphys,               /* no max at this level; handled by DMA code */
                     72:        NULL,
                     73:        NULL,
                     74: };
                     75:
                     76: /* bus space tag for spc */
                     77: struct luna88k_bus_space_tag spc_bst = {
                     78:        4,      /* when reading/writing 1 byte, the stride is 4. */
                     79:        0,      /* not used */
                     80:        0,      /* not used */
                     81:        0,      /* not used */
                     82: };
                     83:
                     84: int
                     85: spc_mainbus_match(parent, cf, aux)
                     86:        struct device *parent;
                     87:        void *cf, *aux;
                     88: {
                     89:        struct mainbus_attach_args *ma = aux;
                     90:
                     91:        if (strcmp(ma->ma_name, spc_cd.cd_name))
                     92:                return 0;
                     93: #if 0
                     94:        if (badaddr((caddr_t)ma->ma_addr, 4))
                     95:                return 0;
                     96:        /* Experiments proved 2nd SPC address does NOT make a buserror. */
                     97: #endif
                     98:        return 1;
                     99: }
                    100:
                    101: void
                    102: spc_mainbus_attach(parent, self, aux)
                    103:        struct device *parent, *self;
                    104:        void *aux;
                    105: {
                    106:        struct spc_softc *sc = (void *)self;
                    107:        struct mainbus_attach_args *ma = aux;
                    108:
                    109:        printf ("\n");
                    110:
                    111:        sc->sc_iot = &spc_bst;
                    112:        sc->sc_ioh = ma->ma_addr;
                    113:        sc->sc_initiator = 7;
                    114:        sc->sc_dma_start = NULL;
                    115:        sc->sc_dma_done = NULL;
                    116:
                    117:        isrlink_autovec(spc_intr, (void *)sc, ma->ma_ilvl, ISRPRI_BIO,
                    118:            self->dv_xname);
                    119:
                    120:        spc_attach(sc, &spc_switch);
                    121: }