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Annotation of sys/arch/vax/vax/sbi.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: sbi.c,v 1.12 2006/07/24 17:25:11 miod Exp $ */
        !             2: /*     $NetBSD: sbi.c,v 1.20 1999/08/07 10:36:50 ragge Exp $ */
        !             3: /*
        !             4:  * Copyright (c) 1994 Ludd, University of Lule}, Sweden.
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  * 3. All advertising materials mentioning features or use of this software
        !            16:  *    must display the following acknowledgement:
        !            17:  *     This product includes software developed at Ludd, University of Lule}.
        !            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: /*
        !            34:  * Still to do: Write all SBI error handling.
        !            35:  */
        !            36:
        !            37: #include <sys/types.h>
        !            38: #include <sys/param.h>
        !            39: #include <sys/device.h>
        !            40: #include <sys/systm.h>
        !            41:
        !            42: #include <machine/sid.h>
        !            43: #include <machine/cpu.h>
        !            44: #include <machine/nexus.h>
        !            45:
        !            46: static int sbi_print(void *, const char *);
        !            47: static int sbi_match_abus(struct device *, struct cfdata *, void *);
        !            48: static int sbi_match_mainbus(struct device *, struct cfdata *, void *);
        !            49: static void sbi_attach(struct device *, struct device *, void *);
        !            50:
        !            51: struct cfdriver sbi_cd = {
        !            52:        NULL, "sbi", DV_DULL
        !            53: };
        !            54:
        !            55: int
        !            56: sbi_print(aux, name)
        !            57:        void *aux;
        !            58:        const char *name;
        !            59: {
        !            60:        struct sbi_attach_args *sa = (struct sbi_attach_args *)aux;
        !            61:        int unsupp = 0;
        !            62:
        !            63:        if (name) {
        !            64:                switch (sa->type) {
        !            65:                case NEX_MBA:
        !            66:                        printf("mba at %s", name);
        !            67:                        break;
        !            68:                default:
        !            69:                        printf("unknown device 0x%x at %s", sa->type, name);
        !            70:                        unsupp++;
        !            71:                }
        !            72:        }
        !            73:        printf(" tr%d", sa->nexnum);
        !            74:        return (unsupp ? UNSUPP : UNCONF);
        !            75: }
        !            76:
        !            77: int
        !            78: sbi_match_mainbus(parent, cf, aux)
        !            79:        struct device   *parent;
        !            80:        struct cfdata *cf;
        !            81:        void *aux;
        !            82: {
        !            83:        struct mainbus_attach_args *maa = aux;
        !            84:
        !            85:        if (maa->maa_bustype == VAX_SBIBUS)
        !            86:                return 1;
        !            87:        return 0;
        !            88: }
        !            89:
        !            90: int
        !            91: sbi_match_abus(parent, cf, aux)
        !            92:        struct device   *parent;
        !            93:        struct cfdata *cf;
        !            94:        void *aux;
        !            95: {
        !            96:        struct bp_conf *bp = aux;
        !            97:
        !            98:        if (strcmp(bp->type, sbi_cd.cd_name) == 0)
        !            99:                return 1;
        !           100:
        !           101:        return 0;
        !           102: }
        !           103:
        !           104: void
        !           105: sbi_attach(parent, self, aux)
        !           106:        struct  device  *parent, *self;
        !           107:        void    *aux;
        !           108: {
        !           109:        u_int   nexnum, minnex;
        !           110:        struct  sbi_attach_args sa;
        !           111:
        !           112:        printf("\n");
        !           113:
        !           114: #define NEXPAGES (sizeof(struct nexus) / VAX_NBPG)
        !           115:        minnex = self->dv_unit * NNEXSBI;
        !           116:        for (nexnum = minnex; nexnum < minnex + NNEXSBI; nexnum++) {
        !           117:                struct  nexus *nexusP = 0;
        !           118:                volatile int tmp;
        !           119:
        !           120:                nexusP = (struct nexus *)vax_map_physmem((paddr_t)NEXA8600 +
        !           121:                    sizeof(struct nexus) * nexnum, NEXPAGES);
        !           122:                if (badaddr((caddr_t)nexusP, 4)) {
        !           123:                        vax_unmap_physmem((vaddr_t)nexusP, NEXPAGES);
        !           124:                } else {
        !           125:                        tmp = nexusP->nexcsr.nex_csr; /* no byte reads */
        !           126:                        sa.type = tmp & 255;
        !           127:
        !           128:                        sa.nexnum = nexnum;
        !           129:                        sa.nexaddr = nexusP;
        !           130:                        config_found(self, (void *)&sa, sbi_print);
        !           131:                }
        !           132:        }
        !           133: }
        !           134:
        !           135: struct cfattach sbi_mainbus_ca = {
        !           136:        sizeof(struct device), sbi_match_mainbus, sbi_attach
        !           137: };
        !           138:
        !           139: struct cfattach sbi_abus_ca = {
        !           140:        sizeof(struct device), sbi_match_abus, sbi_attach
        !           141: };