#include <linux/init.h>
#include <linux/module.h>
#include <linux/dmi.h>
+#include <linux/efi.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
+#include <linux/slab.h>
+#include <asm/dmi.h>
static char * __init dmi_string(struct dmi_header *dm, u8 s)
{
u8 *bp = ((u8 *) dm) + dm->length;
+ char *str = "";
- if (!s)
- return "";
- s--;
- while (s > 0 && *bp) {
- bp += strlen(bp) + 1;
+ if (s) {
s--;
- }
- return bp;
+ while (s > 0 && *bp) {
+ bp += strlen(bp) + 1;
+ s--;
+ }
+
+ if (*bp != 0) {
+ str = dmi_alloc(strlen(bp) + 1);
+ if (str != NULL)
+ strcpy(str, bp);
+ else
+ printk(KERN_ERR "dmi_string: out of memory.\n");
+ }
+ }
+
+ return str;
}
/*
u8 *buf, *data;
int i = 0;
- buf = bt_ioremap(base, len);
+ buf = dmi_ioremap(base, len);
if (buf == NULL)
return -1;
data += 2;
i++;
}
- bt_iounmap(buf, len);
+ dmi_iounmap(buf, len);
return 0;
}
}
static char *dmi_ident[DMI_STRING_MAX];
+static LIST_HEAD(dmi_devices);
/*
* 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]);
+ char *p, *d = (char*) dm;
- 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");
+ p = dmi_string(dm, d[string]);
+ if (p == NULL)
+ return;
+
+ dmi_ident[slot] = p;
+}
+
+static void __init dmi_save_devices(struct dmi_header *dm)
+{
+ int i, count = (dm->length - sizeof(struct dmi_header)) / 2;
+ struct dmi_device *dev;
+
+ for (i = 0; i < count; i++) {
+ char *d = (char *)(dm + 1) + (i * 2);
+
+ /* Skip disabled device */
+ if ((*d & 0x80) == 0)
+ continue;
+
+ dev = dmi_alloc(sizeof(*dev));
+ if (!dev) {
+ printk(KERN_ERR "dmi_save_devices: out of memory.\n");
+ break;
+ }
+
+ dev->type = *d++ & 0x7f;
+ dev->name = dmi_string(dm, *d);
+ dev->device_data = NULL;
+
+ list_add(&dev->list, &dmi_devices);
+ }
+}
+
+static void __init dmi_save_ipmi_device(struct dmi_header *dm)
+{
+ struct dmi_device *dev;
+ void * data;
+
+ data = dmi_alloc(dm->length);
+ if (data == NULL) {
+ printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n");
+ return;
+ }
+
+ memcpy(data, dm, dm->length);
+
+ dev = dmi_alloc(sizeof(*dev));
+ if (!dev) {
+ printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n");
+ return;
+ }
+
+ dev->type = DMI_DEV_TYPE_IPMI;
+ dev->name = "IPMI controller";
+ dev->device_data = data;
+
+ list_add(&dev->list, &dmi_devices);
}
/*
*/
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])));
+ case 0: /* BIOS Information */
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])));
+ case 1: /* System Information */
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])));
+ case 2: /* Base Board Information */
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;
+ case 10: /* Onboard Devices Information */
+ dmi_save_devices(dm);
+ break;
+ case 38: /* IPMI Device Information */
+ dmi_save_ipmi_device(dm);
}
}
-void __init dmi_scan_machine(void)
+static int __init dmi_present(char __iomem *p)
{
u8 buf[15];
+ memcpy_fromio(buf, p, 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");
+ if (dmi_table(base,len, num, dmi_decode) == 0)
+ return 0;
+ }
+ return 1;
+}
+
+void __init dmi_scan_machine(void)
+{
char __iomem *p, *q;
+ int rc;
- /*
- * 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)
- goto out;
-
- 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");
+ if (efi_enabled) {
+ if (!efi.smbios)
+ goto out;
- dmi_printk((KERN_INFO "%d structures occupying %d bytes.\n",
- num, len));
- dmi_printk((KERN_INFO "DMI table at 0x%08X.\n", base));
+ /* This is called as a core_initcall() because it isn't
+ * needed during early boot. This also means we can
+ * iounmap the space when we're done with it.
+ */
+ p = dmi_ioremap((unsigned long)efi.smbios, 32);
+ if (p == NULL)
+ goto out;
- if (dmi_table(base,len, num, dmi_decode) == 0)
+ rc = dmi_present(p + 0x10); /* offset of _DMI_ string */
+ iounmap(p);
+ if (!rc)
+ return;
+ }
+ else {
+ /*
+ * 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 = dmi_ioremap(0xF0000, 0x10000);
+ if (p == NULL)
+ goto out;
+
+ for (q = p; q < p + 0x10000; q += 16) {
+ rc = dmi_present(q);
+ if (!rc)
return;
}
}
-
-out: printk(KERN_INFO "DMI not present.\n");
+ out: printk(KERN_INFO "DMI not present or invalid.\n");
}
-
/**
* dmi_check_system - check system DMI data
* @list: array of dmi_system_id structures to match against
/* No match */
goto fail;
}
+ count++;
if (d->callback && d->callback(d))
break;
- count++;
fail: d++;
}
return dmi_ident[field];
}
EXPORT_SYMBOL(dmi_get_system_info);
+
+/**
+ * dmi_find_device - find onboard device by type/name
+ * @type: device type or %DMI_DEV_TYPE_ANY to match all device types
+ * @desc: device name string or %NULL to match all
+ * @from: previous device found in search, or %NULL for new search.
+ *
+ * Iterates through the list of known onboard devices. If a device is
+ * found with a matching @vendor and @device, a pointer to its device
+ * structure is returned. Otherwise, %NULL is returned.
+ * A new search is initiated by passing %NULL to the @from argument.
+ * If @from is not %NULL, searches continue from next device.
+ */
+struct dmi_device * dmi_find_device(int type, const char *name,
+ struct dmi_device *from)
+{
+ struct list_head *d, *head = from ? &from->list : &dmi_devices;
+
+ for(d = head->next; d != &dmi_devices; d = d->next) {
+ struct dmi_device *dev = list_entry(d, struct dmi_device, list);
+
+ if (((type == DMI_DEV_TYPE_ANY) || (dev->type == type)) &&
+ ((name == NULL) || (strcmp(dev->name, name) == 0)))
+ return dev;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(dmi_find_device);
+
+/**
+ * dmi_get_year - Return year of a DMI date
+ * @field: data index (like dmi_get_system_info)
+ *
+ * Returns -1 when the field doesn't exist. 0 when it is broken.
+ */
+int dmi_get_year(int field)
+{
+ int year;
+ char *s = dmi_get_system_info(field);
+
+ if (!s)
+ return -1;
+ if (*s == '\0')
+ return 0;
+ s = strrchr(s, '/');
+ if (!s)
+ return 0;
+
+ s += 1;
+ year = simple_strtoul(s, NULL, 0);
+ if (year && year < 100) { /* 2-digit year */
+ year += 1900;
+ if (year < 1996) /* no dates < spec 1.0 */
+ year += 100;
+ }
+
+ return year;
+}
projects / linux-2.6-omap-h63xx.git / blobdiff