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Annotation of sys/arch/vax/vax/sbi.c, Revision 1.1.1.1

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: };