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/arch/mips/arc/tree.c

https://bitbucket.org/evzijst/gittest
C | 127 lines | 97 code | 19 blank | 11 comment | 7 complexity | 210e4767e495a6f13574486824aa8aa1 MD5 | raw file
  1/*
  2 * This file is subject to the terms and conditions of the GNU General Public
  3 * License.  See the file "COPYING" in the main directory of this archive
  4 * for more details.
  5 *
  6 * PROM component device tree code.
  7 *
  8 * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
  9 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
 10 * Copyright (C) 1999 Silicon Graphics, Inc.
 11 */
 12#include <linux/init.h>
 13#include <asm/arc/types.h>
 14#include <asm/sgialib.h>
 15
 16#undef DEBUG_PROM_TREE
 17
 18pcomponent * __init
 19ArcGetPeer(pcomponent *Current)
 20{
 21	if (Current == PROM_NULL_COMPONENT)
 22		return PROM_NULL_COMPONENT;
 23
 24	return (pcomponent *) ARC_CALL1(next_component, Current);
 25}
 26
 27pcomponent * __init
 28ArcGetChild(pcomponent *Current)
 29{
 30	return (pcomponent *) ARC_CALL1(child_component, Current);
 31}
 32
 33pcomponent * __init
 34ArcGetParent(pcomponent *Current)
 35{
 36	if (Current == PROM_NULL_COMPONENT)
 37		return PROM_NULL_COMPONENT;
 38
 39	return (pcomponent *) ARC_CALL1(parent_component, Current);
 40}
 41
 42LONG __init
 43ArcGetConfigurationData(VOID *Buffer, pcomponent *Current)
 44{
 45	return ARC_CALL2(component_data, Buffer, Current);
 46}
 47
 48pcomponent * __init
 49ArcAddChild(pcomponent *Current, pcomponent *Template, VOID *ConfigurationData)
 50{
 51	return (pcomponent *)
 52	       ARC_CALL3(child_add, Current, Template, ConfigurationData);
 53}
 54
 55LONG __init
 56ArcDeleteComponent(pcomponent *ComponentToDelete)
 57{
 58	return ARC_CALL1(comp_del, ComponentToDelete);
 59}
 60
 61pcomponent * __init
 62ArcGetComponent(CHAR *Path)
 63{
 64	return (pcomponent *)ARC_CALL1(component_by_path, Path);
 65}
 66
 67#ifdef DEBUG_PROM_TREE
 68
 69static char *classes[] = {
 70	"system", "processor", "cache", "adapter", "controller", "peripheral",
 71	"memory"
 72};
 73
 74static char *types[] = {
 75	"arc", "cpu", "fpu", "picache", "pdcache", "sicache", "sdcache",
 76	"sccache", "memdev", "eisa adapter", "tc adapter", "scsi adapter",
 77	"dti adapter", "multi-func adapter", "disk controller",
 78	"tp controller", "cdrom controller", "worm controller",
 79	"serial controller", "net controller", "display controller",
 80	"parallel controller", "pointer controller", "keyboard controller",
 81	"audio controller", "misc controller", "disk peripheral",
 82	"floppy peripheral", "tp peripheral", "modem peripheral",
 83	"monitor peripheral", "printer peripheral", "pointer peripheral",
 84	"keyboard peripheral", "terminal peripheral", "line peripheral",
 85	"net peripheral", "misc peripheral", "anonymous"
 86};
 87
 88static char *iflags[] = {
 89	"bogus", "read only", "removable", "console in", "console out",
 90	"input", "output"
 91};
 92
 93static void __init
 94dump_component(pcomponent *p)
 95{
 96	prom_printf("[%p]:class<%s>type<%s>flags<%s>ver<%d>rev<%d>",
 97		    p, classes[p->class], types[p->type],
 98		    iflags[p->iflags], p->vers, p->rev);
 99	prom_printf("key<%08lx>\n\tamask<%08lx>cdsize<%d>ilen<%d>iname<%s>\n",
100		    p->key, p->amask, (int)p->cdsize, (int)p->ilen, p->iname);
101}
102
103static void __init
104traverse(pcomponent *p, int op)
105{
106	dump_component(p);
107	if(ArcGetChild(p))
108		traverse(ArcGetChild(p), 1);
109	if(ArcGetPeer(p) && op)
110		traverse(ArcGetPeer(p), 1);
111}
112
113void __init
114prom_testtree(void)
115{
116	pcomponent *p;
117
118	p = ArcGetChild(PROM_NULL_COMPONENT);
119	dump_component(p);
120	p = ArcGetChild(p);
121	while(p) {
122		dump_component(p);
123		p = ArcGetPeer(p);
124	}
125}
126
127#endif /* DEBUG_PROM_TREE  */