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Diffstat (limited to 'arch/i386/kernel/dmi_scan.c')
-rw-r--r--arch/i386/kernel/dmi_scan.c242
1 files changed, 0 insertions, 242 deletions
diff --git a/arch/i386/kernel/dmi_scan.c b/arch/i386/kernel/dmi_scan.c
deleted file mode 100644
index a3cdf894302..00000000000
--- a/arch/i386/kernel/dmi_scan.c
+++ /dev/null
@@ -1,242 +0,0 @@
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/dmi.h>
-#include <linux/bootmem.h>
-
-
-struct dmi_header {
- u8 type;
- u8 length;
- u16 handle;
-};
-
-#undef DMI_DEBUG
-
-#ifdef DMI_DEBUG
-#define dmi_printk(x) printk x
-#else
-#define dmi_printk(x)
-#endif
-
-static char * __init dmi_string(struct dmi_header *dm, u8 s)
-{
- u8 *bp = ((u8 *) dm) + dm->length;
-
- if (!s)
- return "";
- s--;
- while (s > 0 && *bp) {
- bp += strlen(bp) + 1;
- s--;
- }
- return bp;
-}
-
-/*
- * We have to be cautious here. We have seen BIOSes with DMI pointers
- * pointing to completely the wrong place for example
- */
-static int __init dmi_table(u32 base, int len, int num,
- void (*decode)(struct dmi_header *))
-{
- u8 *buf, *data;
- int i = 0;
-
- buf = bt_ioremap(base, len);
- if (buf == NULL)
- return -1;
-
- data = buf;
-
- /*
- * Stop when we see all the items the table claimed to have
- * OR we run off the end of the table (also happens)
- */
- while ((i < num) && (data - buf + sizeof(struct dmi_header)) <= len) {
- struct dmi_header *dm = (struct dmi_header *)data;
- /*
- * We want to know the total length (formated area and strings)
- * before decoding to make sure we won't run off the table in
- * dmi_decode or dmi_string
- */
- data += dm->length;
- while ((data - buf < len - 1) && (data[0] || data[1]))
- data++;
- if (data - buf < len - 1)
- decode(dm);
- data += 2;
- i++;
- }
- bt_iounmap(buf, len);
- return 0;
-}
-
-static int __init dmi_checksum(u8 *buf)
-{
- u8 sum = 0;
- int a;
-
- for (a = 0; a < 15; a++)
- sum += buf[a];
-
- return sum == 0;
-}
-
-static int __init dmi_iterate(void (*decode)(struct dmi_header *))
-{
- u8 buf[15];
- char __iomem *p, *q;
-
- /*
- * no iounmap() for that ioremap(); it would be a no-op, but it's
- * so early in setup that sucker gets confused into doing what
- * it shouldn't if we actually call it.
- */
- p = ioremap(0xF0000, 0x10000);
- if (p == NULL)
- return -1;
-
- for (q = p; q < p + 0x10000; q += 16) {
- memcpy_fromio(buf, q, 15);
- if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) {
- u16 num = (buf[13] << 8) | buf[12];
- u16 len = (buf[7] << 8) | buf[6];
- u32 base = (buf[11] << 24) | (buf[10] << 16) |
- (buf[9] << 8) | buf[8];
-
- /*
- * DMI version 0.0 means that the real version is taken from
- * the SMBIOS version, which we don't know at this point.
- */
- if (buf[14] != 0)
- printk(KERN_INFO "DMI %d.%d present.\n",
- buf[14] >> 4, buf[14] & 0xF);
- else
- printk(KERN_INFO "DMI present.\n");
-
- dmi_printk((KERN_INFO "%d structures occupying %d bytes.\n",
- num, len));
- dmi_printk((KERN_INFO "DMI table at 0x%08X.\n", base));
-
- if (dmi_table(base,len, num, decode) == 0)
- return 0;
- }
- }
- return -1;
-}
-
-static char *dmi_ident[DMI_STRING_MAX];
-
-/*
- * Save a DMI string
- */
-static void __init dmi_save_ident(struct dmi_header *dm, int slot, int string)
-{
- char *d = (char*)dm;
- char *p = dmi_string(dm, d[string]);
-
- if (p == NULL || *p == 0)
- return;
- if (dmi_ident[slot])
- return;
-
- dmi_ident[slot] = alloc_bootmem(strlen(p) + 1);
- if(dmi_ident[slot])
- strcpy(dmi_ident[slot], p);
- else
- printk(KERN_ERR "dmi_save_ident: out of memory.\n");
-}
-
-/*
- * Process a DMI table entry. Right now all we care about are the BIOS
- * and machine entries. For 2.5 we should pull the smbus controller info
- * out of here.
- */
-static void __init dmi_decode(struct dmi_header *dm)
-{
- u8 *data __attribute__((__unused__)) = (u8 *)dm;
-
- switch(dm->type) {
- case 0:
- dmi_printk(("BIOS Vendor: %s\n", dmi_string(dm, data[4])));
- dmi_save_ident(dm, DMI_BIOS_VENDOR, 4);
- dmi_printk(("BIOS Version: %s\n", dmi_string(dm, data[5])));
- dmi_save_ident(dm, DMI_BIOS_VERSION, 5);
- dmi_printk(("BIOS Release: %s\n", dmi_string(dm, data[8])));
- dmi_save_ident(dm, DMI_BIOS_DATE, 8);
- break;
- case 1:
- dmi_printk(("System Vendor: %s\n", dmi_string(dm, data[4])));
- dmi_save_ident(dm, DMI_SYS_VENDOR, 4);
- dmi_printk(("Product Name: %s\n", dmi_string(dm, data[5])));
- dmi_save_ident(dm, DMI_PRODUCT_NAME, 5);
- dmi_printk(("Version: %s\n", dmi_string(dm, data[6])));
- dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6);
- dmi_printk(("Serial Number: %s\n", dmi_string(dm, data[7])));
- dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7);
- break;
- case 2:
- dmi_printk(("Board Vendor: %s\n", dmi_string(dm, data[4])));
- dmi_save_ident(dm, DMI_BOARD_VENDOR, 4);
- dmi_printk(("Board Name: %s\n", dmi_string(dm, data[5])));
- dmi_save_ident(dm, DMI_BOARD_NAME, 5);
- dmi_printk(("Board Version: %s\n", dmi_string(dm, data[6])));
- dmi_save_ident(dm, DMI_BOARD_VERSION, 6);
- break;
- }
-}
-
-void __init dmi_scan_machine(void)
-{
- if (dmi_iterate(dmi_decode))
- printk(KERN_INFO "DMI not present.\n");
-}
-
-
-/**
- * dmi_check_system - check system DMI data
- * @list: array of dmi_system_id structures to match against
- *
- * Walk the blacklist table running matching functions until someone
- * returns non zero or we hit the end. Callback function is called for
- * each successfull match. Returns the number of matches.
- */
-int dmi_check_system(struct dmi_system_id *list)
-{
- int i, count = 0;
- struct dmi_system_id *d = list;
-
- while (d->ident) {
- for (i = 0; i < ARRAY_SIZE(d->matches); i++) {
- int s = d->matches[i].slot;
- if (s == DMI_NONE)
- continue;
- if (dmi_ident[s] && strstr(dmi_ident[s], d->matches[i].substr))
- continue;
- /* No match */
- goto fail;
- }
- if (d->callback && d->callback(d))
- break;
- count++;
-fail: d++;
- }
-
- return count;
-}
-EXPORT_SYMBOL(dmi_check_system);
-
-/**
- * dmi_get_system_info - return DMI data value
- * @field: data index (see enum dmi_filed)
- *
- * Returns one DMI data value, can be used to perform
- * complex DMI data checks.
- */
-char *dmi_get_system_info(int field)
-{
- return dmi_ident[field];
-}
-EXPORT_SYMBOL(dmi_get_system_info);
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