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obio.c revision 1.12.78.1 
      1 /*	$NetBSD: obio.c,v 1.12.78.1 2008/05/16 02:22:52 yamt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Wayne Knowles
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.12.78.1 2008/05/16 02:22:52 yamt Exp $");
     34 
     35 #include "locators.h"
     36 
     37 #include <sys/param.h>
     38 #include <sys/systm.h>
     39 #include <sys/device.h>
     40 
     41 #include <machine/autoconf.h>
     42 #include <machine/mainboard.h>
     43 #include <machine/bus.h>
     44 #include <machine/sysconf.h>
     45 
     46 static int	obio_match __P((struct device *, struct cfdata *, void *));
     47 static void	obio_attach __P((struct device *, struct device *, void *));
     48 static int	obio_search __P((struct device *, struct cfdata *,
     49 				 const int *, void *));
     50 static int	obio_print __P((void *, const char *));
     51 static void	obio_intr_establish  __P((bus_space_tag_t, int, int, int,
     52 					  int (*)(void *), void *));
     53 
     54 CFATTACH_DECL(obio, sizeof(struct device),
     55     obio_match, obio_attach, NULL, NULL);
     56 
     57 extern struct cfdriver obio_cd;
     58 
     59 struct mipsco_bus_space obio_bustag;
     60 struct mipsco_bus_dma_tag obio_dmatag;
     61 
     62 static int
     63 obio_match(parent, cf, aux)
     64 	struct device *parent;
     65 	struct cfdata *cf;
     66 	void *aux;
     67 {
     68 	struct confargs *ca = aux;
     69 
     70 	if (strcmp(ca->ca_name, obio_cd.cd_name) != 0)
     71 		return 0;
     72 
     73 	return 1;
     74 }
     75 
     76 static void
     77 obio_attach(parent, self, aux)
     78 	struct device *parent;
     79 	struct device *self;
     80 	void *aux;
     81 {
     82 	struct confargs *ca = aux;
     83 
     84 	/* PIZAZZ (Mips 3000 Magnum)  Address Map */
     85 	mipsco_bus_space_init(&obio_bustag, "obio",
     86 			      0x18000000, 0xb8000000,
     87 			      0xb8000000, 0x08000000);
     88 
     89 	_bus_dma_tag_init(&obio_dmatag);
     90 	obio_bustag.bs_intr_establish = obio_intr_establish; /* XXX */
     91 
     92 	ca->ca_bustag = &obio_bustag;
     93 	ca->ca_dmatag = &obio_dmatag;
     94 
     95 	printf("\n");
     96 	config_search_ia(obio_search, self, "obio", ca);
     97 }
     98 
     99 static int
    100 obio_search(parent, cf, ldesc, aux)
    101 	struct device *parent;
    102 	struct cfdata *cf;
    103 	const int *ldesc;
    104 	void *aux;
    105 {
    106 	struct confargs *ca = aux;
    107 
    108 	ca->ca_addr = cf->cf_addr;
    109 	ca->ca_name = cf->cf_name;
    110 
    111 	if (config_match(parent, cf, ca) != 0)
    112 		config_attach(parent, cf, ca, obio_print);
    113 
    114 	return 0;
    115 }
    116 
    117 /*
    118  * Print out the confargs.  The (parent) name is non-NULL
    119  * when there was no match found by config_found().
    120  */
    121 static int
    122 obio_print(args, name)
    123 	void *args;
    124 	const char *name;
    125 {
    126 	struct confargs *ca = args;
    127 
    128 	if (name)
    129 		return(QUIET);
    130 
    131 	if (ca->ca_addr != -1)
    132 		aprint_normal(" addr 0x%x", ca->ca_addr);
    133 
    134 	return(UNCONF);
    135 }
    136 
    137 void
    138 obio_intr_establish(bst, level, pri, flags, func, arg)
    139 	bus_space_tag_t bst;
    140 	int level;
    141 	int pri;
    142 	int flags;
    143 	int (*func) __P((void *));
    144 	void *arg;
    145 {
    146 	(*platform.intr_establish)(level, func, arg);
    147 }
    148