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ebus.c revision 1.1.2.2 
      1 /*	$NetBSD: ebus.c,v 1.1.2.2 2011/02/08 18:05:06 bouyer Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code was written by Alessandro Forin and Neil Pittman
      8  * at Microsoft Research and contributed to The NetBSD Foundation
      9  * by Microsoft Corporation.
     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  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     34 __KERNEL_RCSID(0, "$NetBSD: ebus.c,v 1.1.2.2 2011/02/08 18:05:06 bouyer Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 #include <sys/device.h>
     39 
     40 #include <machine/sysconf.h>
     41 #include <emips/ebus/ebusvar.h>
     42 #include <emips/emips/machdep.h>
     43 
     44 #include "locators.h"
     45 
     46 void
     47 ebusattach(parent, self, aux)
     48 	struct device *parent, *self;
     49 	void *aux;
     50 {
     51 	struct ebus_dev_attach_args *ida = aux;
     52 	struct ebus_attach_args *ia;
     53     void *addr;
     54 	int i;
     55 	int locs[EBUSCF_NLOCS];
     56 
     57 	printf("\n");
     58 
     59 	/*
     60 	 * Loop through the devices and attach them.  If a probe-size
     61 	 * is specified, it's an optional item on the platform and
     62 	 * do a badaddr() test to make sure it's there.
     63 	 */
     64 	for (i = 0; i < ida->ida_ndevs; i++) {
     65 		ia = &ida->ida_devs[i];
     66 
     67 #if 0 // DEBUG
     68         printf("PROBING %s %d@%x i=%d\n", ia->ia_name, ia->ia_basz, ia->ia_paddr, ia->ia_cookie);
     69 #endif
     70 		if (ia->ia_basz != 0) {
     71             addr = (void *) mips_map_physmem(ia->ia_paddr, ia->ia_basz);
     72             if (addr == NULL){
     73                 printf("Failed to map %s: phys %x size %d\n",
     74                        ia->ia_name, ia->ia_paddr, ia->ia_basz);
     75                 continue;
     76             }
     77             ia->ia_vaddr = addr;
     78 #if 0 // DEBUG
     79             printf("MAPPED at %p\n", ia->ia_vaddr);
     80 #endif
     81         }
     82 
     83 
     84 		locs[EBUSCF_ADDR] = ia->ia_paddr;
     85 
     86 		if (NULL == config_found_sm_loc(self, "ebus", locs, ia,
     87                                         ebusprint, config_stdsubmatch)) {
     88             /* do we need to say anything? */
     89             if (ia->ia_basz != 0) {
     90                 mips_unmap_physmem((vaddr_t)ia->ia_vaddr, ia->ia_basz);
     91             }
     92         }
     93 	}
     94 }
     95 
     96 int
     97 ebusprint(aux, pnp)
     98 	void *aux;
     99 	const char *pnp;
    100 {
    101 	struct ebus_attach_args *ia = aux;
    102 
    103 	if (pnp)
    104 		aprint_normal("%s at %s", ia->ia_name, pnp);
    105 
    106 	aprint_normal(" addr 0x%x", ia->ia_paddr);
    107 
    108 	return (UNCONF);
    109 }
    110 
    111 void
    112 ebus_intr_establish(dev, cookie, level, handler, arg)
    113 	struct device *dev;
    114 	void *cookie;
    115 	int level;
    116 	int (*handler) (void *, void *);
    117 	void *arg;
    118 {
    119 	(*platform.intr_establish)(dev, cookie, level, handler, arg);
    120 }
    121