Annotation of sys/arch/mac68k/dev/obio.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: obio.c,v 1.6 2005/12/21 18:52:28 miod Exp $ */
! 2: /* $NetBSD: obio.c,v 1.7 1997/02/13 19:01:07 scottr Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1996 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to the NetBSD Foundation
! 9: * by Jason R. Thorpe.
! 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 REGENTS OR CONTRIBUTORS BE
! 31: * 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:
! 44: #include <machine/bus.h>
! 45:
! 46: #include <mac68k/dev/obiovar.h>
! 47:
! 48: static int obio_match(struct device *, void *, void *);
! 49: static void obio_attach(struct device *, struct device *, void *);
! 50: static int obio_print(void *, const char *);
! 51: static int obio_search(struct device *, void *, void *);
! 52:
! 53: struct cfattach obio_ca = {
! 54: sizeof(struct device), obio_match, obio_attach
! 55: };
! 56:
! 57: struct cfdriver obio_cd = {
! 58: NULL, "obio", DV_DULL
! 59: };
! 60:
! 61: static int
! 62: obio_match(parent, vcf, aux)
! 63: struct device *parent;
! 64: void *vcf;
! 65: void *aux;
! 66: {
! 67: static int obio_matched = 0;
! 68:
! 69: /* Allow only one instance. */
! 70: if (obio_matched)
! 71: return (0);
! 72:
! 73: obio_matched = 1;
! 74: return (1);
! 75: }
! 76:
! 77: static void
! 78: obio_attach(parent, self, aux)
! 79: struct device *parent;
! 80: struct device *self;
! 81: void *aux;
! 82: {
! 83: printf("\n");
! 84:
! 85: /* Search for and attach children. */
! 86: (void)config_search(obio_search, self, aux);
! 87: }
! 88:
! 89: int
! 90: obio_print(args, name)
! 91: void *args;
! 92: const char *name;
! 93: {
! 94: struct obio_attach_args *oa = (struct obio_attach_args *)args;
! 95:
! 96: if (oa->oa_addr != (-1))
! 97: printf(" addr %x", oa->oa_addr);
! 98:
! 99: return (UNCONF);
! 100: }
! 101:
! 102: int
! 103: obio_search(parent, vcf, aux)
! 104: struct device *parent;
! 105: void *vcf;
! 106: void *aux;
! 107: {
! 108: struct obio_attach_args oa;
! 109: struct cfdata *cf = (struct cfdata *) vcf;
! 110:
! 111: oa.oa_addr = cf->cf_loc[0];
! 112: oa.oa_tag = MAC68K_BUS_SPACE_MEM;
! 113:
! 114: if ((*cf->cf_attach->ca_match)(parent, cf, &oa) > 0)
! 115: config_attach(parent, cf, &oa, obio_print);
! 116:
! 117: return (0);
! 118: }
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