LXR linux/arch/mips/fw/arc/tree.c

   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 (davem@davemloft.net)
   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/fw/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        printk("[%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        printk("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  */
 128