| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 18 | pcomponent * __init |
| 19 | ArcGetPeer(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 | |
| 27 | pcomponent * __init |
| 28 | ArcGetChild(pcomponent *Current) |
| 29 | { |
| 30 | return (pcomponent *) ARC_CALL1(child_component, Current); |
| 31 | } |
| 32 | |
| 33 | pcomponent * __init |
| 34 | ArcGetParent(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 | |
| 42 | LONG __init |
| 43 | ArcGetConfigurationData(VOID *Buffer, pcomponent *Current) |
| 44 | { |
| 45 | return ARC_CALL2(component_data, Buffer, Current); |
| 46 | } |
| 47 | |
| 48 | pcomponent * __init |
| 49 | ArcAddChild(pcomponent *Current, pcomponent *Template, VOID *ConfigurationData) |
| 50 | { |
| 51 | return (pcomponent *) |
| 52 | ARC_CALL3(child_add, Current, Template, ConfigurationData); |
| 53 | } |
| 54 | |
| 55 | LONG __init |
| 56 | ArcDeleteComponent(pcomponent *ComponentToDelete) |
| 57 | { |
| 58 | return ARC_CALL1(comp_del, ComponentToDelete); |
| 59 | } |
| 60 | |
| 61 | pcomponent * __init |
| 62 | ArcGetComponent(CHAR *Path) |
| 63 | { |
| 64 | return (pcomponent *)ARC_CALL1(component_by_path, Path); |
| 65 | } |
| 66 | |
| 67 | #ifdef DEBUG_PROM_TREE |
| 68 | |
| 69 | static char *classes[] = { |
| 70 | "system", "processor", "cache", "adapter", "controller", "peripheral", |
| 71 | "memory" |
| 72 | }; |
| 73 | |
| 74 | static 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 | |
| 88 | static char *iflags[] = { |
| 89 | "bogus", "read only", "removable", "console in", "console out", |
| 90 | "input", "output" |
| 91 | }; |
| 92 | |
| 93 | static void __init |
| 94 | dump_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 | |
| 103 | static void __init |
| 104 | traverse(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 | |
| 113 | void __init |
| 114 | prom_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 */ |