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obio.c revision 1.5 
      1 /*	$NetBSD: obio.c,v 1.5 2002/09/27 20:33:50 thorpej 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/device.h>
     42 
     43 #include <machine/autoconf.h>
     44 #include <machine/mainboard.h>
     45 #include <machine/bus.h>
     46 #include <machine/sysconf.h>
     47 
     48 static int	obio_match __P((struct device *, struct cfdata *, void *));
     49 static void	obio_attach __P((struct device *, struct device *, void *));
     50 static int	obio_search __P((struct device *, struct cfdata *, void *));
     51 static int	obio_print __P((void *, const char *));
     52 static void	obio_intr_establish  __P((bus_space_tag_t, int, int, int,
     53 					  int (*)(void *), void *));
     54 
     55 const struct cfattach obio_ca = {
     56 	sizeof(struct device), obio_match, obio_attach
     57 };
     58 
     59 extern struct cfdriver obio_cd;
     60 
     61 struct mipsco_bus_space obio_bustag;
     62 struct mipsco_bus_dma_tag obio_dmatag;
     63 
     64 static int
     65 obio_match(parent, cf, aux)
     66 	struct device *parent;
     67 	struct cfdata *cf;
     68 	void *aux;
     69 {
     70 	struct confargs *ca = aux;
     71 
     72 	if (strcmp(ca->ca_name, obio_cd.cd_name) != 0)
     73 		return 0;
     74 
     75 	return 1;
     76 }
     77 
     78 static void
     79 obio_attach(parent, self, aux)
     80 	struct device *parent;
     81 	struct device *self;
     82 	void *aux;
     83 {
     84 	struct confargs *ca = aux;
     85 
     86 	/* PIZAZZ (Mips 3000 Magnum)  Address Map */
     87 	mipsco_bus_space_init(&obio_bustag, "obio",
     88 			      0x18000000, 0xb8000000,
     89 			      0xb8000000, 0x08000000);
     90 
     91 	_bus_dma_tag_init(&obio_dmatag);
     92 	obio_bustag.bs_intr_establish = obio_intr_establish; /* XXX */
     93 
     94 	ca->ca_bustag = &obio_bustag;
     95 	ca->ca_dmatag = &obio_dmatag;
     96 
     97 	printf("\n");
     98 	config_search(obio_search, self, ca);
     99 }
    100 
    101 static int
    102 obio_search(parent, cf, aux)
    103 	struct device *parent;
    104 	struct cfdata *cf;
    105 	void *aux;
    106 {
    107 	struct confargs *ca = aux;
    108 
    109 	ca->ca_addr = cf->cf_addr;
    110 	ca->ca_name = cf->cf_name;
    111 
    112 	if (config_match(parent, cf, ca) != 0)
    113 		config_attach(parent, cf, ca, obio_print);
    114 
    115 	return 0;
    116 }
    117 
    118 /*
    119  * Print out the confargs.  The (parent) name is non-NULL
    120  * when there was no match found by config_found().
    121  */
    122 static int
    123 obio_print(args, name)
    124 	void *args;
    125 	const char *name;
    126 {
    127 	struct confargs *ca = args;
    128 
    129 	if (name)
    130 		return(QUIET);
    131 
    132 	if (ca->ca_addr != -1)
    133 		printf(" addr 0x%x", ca->ca_addr);
    134 
    135 	return(UNCONF);
    136 }
    137 
    138 void
    139 obio_intr_establish(bst, level, pri, flags, func, arg)
    140 	bus_space_tag_t bst;
    141 	int level;
    142 	int pri;
    143 	int flags;
    144 	int (*func) __P((void *));
    145 	void *arg;
    146 {
    147 	(*platform.intr_establish)(level, func, arg);
    148 }
    149