Annotation of sys/arch/hp300/dev/intio.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: intio.c,v 1.6 2007/01/06 20:10:57 miod Exp $ */
! 2: /* $NetBSD: intio.c,v 1.2 1997/01/30 09:18:54 thorpej 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: /*
! 41: * Autoconfiguration support for hp300 internal i/o space.
! 42: */
! 43:
! 44: #include <sys/param.h>
! 45: #include <sys/systm.h>
! 46: #include <sys/device.h>
! 47:
! 48: #include <machine/bus.h>
! 49:
! 50: #include <hp300/dev/intiovar.h>
! 51:
! 52: int intiomatch(struct device *, void *, void *);
! 53: void intioattach(struct device *, struct device *, void *);
! 54: int intioprint(void *, const char *);
! 55: int intiosearch(struct device *, void *, void *);
! 56:
! 57: struct cfattach intio_ca = {
! 58: sizeof(struct device), intiomatch, intioattach
! 59: };
! 60:
! 61: struct cfdriver intio_cd = {
! 62: NULL, "intio", DV_DULL
! 63: };
! 64:
! 65: int
! 66: intiomatch(parent, match, aux)
! 67: struct device *parent;
! 68: void *match, *aux;
! 69: {
! 70: static int intio_matched = 0;
! 71:
! 72: /* Allow only one instance. */
! 73: if (intio_matched)
! 74: return (0);
! 75:
! 76: intio_matched = 1;
! 77: return (1);
! 78: }
! 79:
! 80: void
! 81: intioattach(parent, self, aux)
! 82: struct device *parent, *self;
! 83: void *aux;
! 84: {
! 85:
! 86: printf("\n");
! 87:
! 88: /* Search for and attach children. */
! 89: config_search(intiosearch, self, NULL);
! 90: }
! 91:
! 92: int
! 93: intioprint(aux, pnp)
! 94: void *aux;
! 95: const char *pnp;
! 96: {
! 97: struct intio_attach_args *ia = aux;
! 98:
! 99: if (ia->ia_addr != 0)
! 100: printf(" addr %p", ia->ia_addr);
! 101: return (UNCONF);
! 102: }
! 103:
! 104: int
! 105: intiosearch(parent, match, aux)
! 106: struct device *parent;
! 107: void *match, *aux;
! 108: {
! 109: struct cfdata *cf = match;
! 110: struct intio_attach_args ia;
! 111: extern struct hp300_bus_space_tag hp300_mem_tag;
! 112:
! 113: bzero(&ia, sizeof(ia));
! 114: ia.ia_tag = &hp300_mem_tag;
! 115:
! 116: if ((*cf->cf_attach->ca_match)(parent, cf, &ia) > 0)
! 117: config_attach(parent, cf, &ia, intioprint);
! 118:
! 119: return (0);
! 120: }
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