Chameleon

Chameleon Svn Source Tree

Root/branches/cparm/i386/libsaio/smbios.c

1␊
2␊
3#include "libsaio.h"␊
4#include "SMBIOS.h"␊
5#include "Platform.h"␊
6␊
7static const char * const SMTAG = "_SM_";␊
8static const char* const DMITAG= "_DMI_";␊
9static struct SMBEntryPoint *getAddressOfSmbiosTable(void);␊
10␊
11static struct SMBEntryPoint *getAddressOfSmbiosTable(void)␊
12{␊
13␉struct SMBEntryPoint␉*smbios;␊
14␉/* ␊
15␉ * The logic is to start at 0xf0000 and end at 0xfffff iterating 16 bytes at a time looking␊
16␉ * for the SMBIOS entry-point structure anchor (literal ASCII "_SM_").␊
17␉ */␊
18␉smbios = (struct SMBEntryPoint*) SMBIOS_RANGE_START;␊
19␉while (smbios <= (struct SMBEntryPoint *)SMBIOS_RANGE_END)␊
20␉{␊
21␉␉if (COMPARE_DWORD(smbios->anchor, SMTAG) && ␊
22␉␉␉COMPARE_DWORD(smbios->dmi.anchor, DMITAG) &&␊
23␉␉␉smbios->dmi.anchor[4]==DMITAG[4] &&␊
24␉␉␉checksum8(smbios, sizeof(struct SMBEntryPoint)) == 0)␊
25␉ {␉␉␉␊
26␉␉␉return ((void*)smbios);␊
27␉ }␊
28␉␉smbios = (struct SMBEntryPoint*) ( ((char*) smbios) + 16 );␊
29␉}␊
30␉printf("Error: Could not find original SMBIOS !!\n");␊
31␉pause();␊
32␉return NULL;␊
33}␊
34␊
35struct SMBEntryPoint *getSmbiosOriginal()␊
36{ ␉␊
37 static struct SMBEntryPoint *orig = NULL; // cached␊
38 ␊
39 if (orig == NULL)␊
40␉{␊
41␉␉orig = getAddressOfSmbiosTable();␉␉␊
42␉␉␊
43␉␉if (orig)␊
44␉␉{␊
45␉␉␉verbose("Found System Management BIOS (SMBIOS) table\n");␉␉␉␊
46␉␉}␊
47 ␊
48 }␊
49 return orig; ␊
50}␊
51␊
52/* get product Name from original SMBIOS */␊
53char* readDefaultPlatformName(void)␊
54{␉␉␉␊
55␉␊
56␉SMBEntryPoint *eps = getSmbiosOriginal();␊
57␉if (eps == NULL) return NULL;␊
58␉␊
59␉uint8_t *structPtr = (uint8_t *)eps->dmi.tableAddress;␊
60␉SMBStructHeader *structHeader = (SMBStructHeader *)structPtr;␊
61␉␊
62␉for (;((eps->dmi.tableAddress + eps->dmi.tableLength) > ((uint32_t)(uint8_t *)structHeader + sizeof(SMBStructHeader)));)␊
63␉{␊
64␉␉switch (structHeader->type)␊
65␉␉{␉␉␉␉␊
66␉␉␉case kSMBTypeSystemInformation: ␊
67␉␉␉{␊
68␉␉␉␉uint8_t *stringPtr = (uint8_t *)structHeader + structHeader->length;␊
69␉␉␉␉uint8_t field = ((SMBSystemInformation *)structHeader)->productName;␊
70␉␉␉␉␊
71␉␉␉␉if (!field)␊
72␉␉␉␉␉return NULL;␊
73␉␉␉␉␊
74␉␉␉␉for (field--; field != 0 && strlen((char *)stringPtr) > 0; ␊
75␉␉␉␉␉ field--, stringPtr = (uint8_t *)((uint32_t)stringPtr + strlen((char *)stringPtr) + 1));␊
76␉␉␉␉␊
77␉␉␉␉//DBG("original SMBIOS Product name: %s\n",(char *)stringPtr);␊
78␉␉␉␉if (stringPtr)␊
79␉␉␉␉␉return (char *)stringPtr;␊
80␉␉␉␉else ␊
81␉␉␉␉␉return NULL;␉␉␉␊
82␉␉␉␉␊
83␉␉␉␉break;␉␊
84␉␉␉}␉␉␉␊
85␉␉␉default:␊
86␉␉␉␉break;␊
87␉␉␉␉␊
88␉␉}␊
89␉␉␊
90␉␉structPtr = (uint8_t *)((uint32_t)structHeader + structHeader->length);␊
91␉␉for (; ((uint16_t *)structPtr)[0] != 0; structPtr++);␊
92␉␉␊
93␉␉if (((uint16_t *)structPtr)[0] == 0)␊
94␉␉␉structPtr += 2;␊
95␉␉␊
96␉␉structHeader = (SMBStructHeader *)structPtr;␊
97␉}␉␊
98␉return NULL;␊
99}␊
100␊
101/* get UUID or product Name from original SMBIOS, stripped version of kabyl's readSMBIOSInfo */␊
102int readSMBIOS(int value)␊
103{␉␉␉␊
104␉␊
105␉SMBEntryPoint *eps = getSmbiosOriginal();␊
106␉if (eps == NULL) return 0;␊
107␉␊
108␉uint8_t *structPtr = (uint8_t *)eps->dmi.tableAddress;␊
109␉SMBStructHeader *structHeader = (SMBStructHeader *)structPtr;␊
110␉␊
111␉for (;((eps->dmi.tableAddress + eps->dmi.tableLength) > ((uint32_t)(uint8_t *)structHeader + sizeof(SMBStructHeader)));)␊
112␉{␊
113␉␉switch (structHeader->type)␊
114␉␉{␉␉␉␉␊
115␉␉␉case kSMBTypeSystemInformation: ␊
116␉␉␉{␊
117␉␉␉␉switch (value) {␊
118␉␉␉␉␉case theUUID:␊
119 safe_set_env(envUUID,(uint32_t)((SMBSystemInformation *)structHeader)->uuid);␉␉␉␉␉␊
120␉␉␉␉␉␉return 1;␊
121␉␉␉␉␉␉break;␊
122␉␉␉␉␉case thePlatformName:␊
123␉␉␉␉␉{␊
124␉␉␉␉␉␉uint8_t *stringPtr = (uint8_t *)structHeader + structHeader->length;␊
125␉␉␉␉␉␉uint8_t field = ((SMBSystemInformation *)structHeader)->productName;␊
126␉␉␉␉␉␉␊
127␉␉␉␉␉␉if (!field)␊
128␉␉␉␉␉␉␉return 0;␊
129␉␉␉␉␉␉␊
130␉␉␉␉␉␉for (field--; field != 0 && strlen((char *)stringPtr) > 0; ␊
131␉␉␉␉␉␉␉ field--, stringPtr = (uint8_t *)((uint32_t)stringPtr + strlen((char *)stringPtr) + 1));␊
132␉␉␉␉␉␉␊
133␉␉␉␉␉␉//DBG("original SMBIOS Product name: %s\n",(char *)stringPtr);␊
134 SetgPlatformName((char *)stringPtr);␊
135␉␉␉␉␉␉if (GetgPlatformName()) return 1;␊
136␉␉␉␉␉␉break;␊
137␉␉␉␉␉}␊
138␉␉␉␉␉default:␊
139␉␉␉␉␉␉break;␊
140␉␉␉␉}␉␉␉␉␊
141␉␉␉␉␊
142␉␉␉␉break;␉␊
143␉␉␉}␊
144␉␉␉case kSMBTypeBaseBoard:␊
145 {␊
146␉␉␉␉switch (value) {␊
147␉␉␉␉␉case theProducBoard:␊
148␉␉␉␉␉{␊
149␉␉␉␉␉␉uint8_t *stringPtr = (uint8_t *)structHeader + structHeader->length;␊
150␉␉␉␉␉␉uint8_t field = ((SMBBaseBoard *)structHeader)->product;␊
151␉␉␉␉␉␉␊
152␉␉␉␉␉␉if (!field)␊
153␉␉␉␉␉␉␉return 0;␊
154␉␉␉␉␉␉␊
155␉␉␉␉␉␉for (field--; field != 0 && strlen((char *)stringPtr) > 0; ␊
156␉␉␉␉␉␉␉ field--, stringPtr = (uint8_t *)((uint32_t)stringPtr + strlen((char *)stringPtr) + 1));␊
157␉␉␉␉␉␉␊
158␉␉␉␉␉␉Setgboardproduct((char *)stringPtr);␊
159␉␉␉␉␉␉if (Getgboardproduct()) return 1;␊
160␉␉␉␉␉␉break;␊
161␉␉␉␉␉}␊
162␉␉␉␉␉default:␊
163␉␉␉␉␉␉break;␊
164␉␉␉␉}␊
165␉␉␉␉break;␊
166 }␊
167␉␉␉default:␊
168␉␉␉␉break;␊
169␉␉␉␉␊
170␉␉}␊
171␉␉␊
172␉␉structPtr = (uint8_t *)((uint32_t)structHeader + structHeader->length);␊
173␉␉for (; ((uint16_t *)structPtr)[0] != 0; structPtr++);␊
174␉␉␊
175␉␉if (((uint16_t *)structPtr)[0] == 0)␊
176␉␉␉structPtr += 2;␊
177␉␉␊
178␉␉structHeader = (SMBStructHeader *)structPtr;␊
179␉}␉␊
180␉return 0;␊
181}

Archive Download this file

Revision: 2006