[PATCH] dmi: add onboard devices discovery

This patch adds onboard devices and IPMI BMC discovery into DMI scan code.
Drivers can use dmi_find_device() function to search for devices by type and
name.

Signed-off-by: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 33 insertions, 3 deletions

diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 5e93e6dce9a4..c30175e8dec6 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -1,6 +1,8 @@
 #ifndef __DMI_H__
 #define __DMI_H__
 
+#include <linux/list.h>
+
 enum dmi_field {
         DMI_NONE,
         DMI_BIOS_VENDOR,
@@ -16,6 +18,24 @@ enum dmi_field {
         DMI_STRING_MAX,
 };
 
+enum dmi_device_type {
+        DMI_DEV_TYPE_ANY = 0,
+        DMI_DEV_TYPE_OTHER,
+        DMI_DEV_TYPE_UNKNOWN,
+        DMI_DEV_TYPE_VIDEO,
+        DMI_DEV_TYPE_SCSI,
+        DMI_DEV_TYPE_ETHERNET,
+        DMI_DEV_TYPE_TOKENRING,
+        DMI_DEV_TYPE_SOUND,
+        DMI_DEV_TYPE_IPMI = -1
+};
+
+struct dmi_header {
+        u8 type;
+        u8 length;
+        u16 handle;
+};
+
 /*
  *      DMI callbacks for problem boards
  */
@@ -26,22 +46,32 @@ struct dmi_strmatch {
 
 struct dmi_system_id {
         int (*callback)(struct dmi_system_id *);
-        char *ident;
+        const char *ident;
         struct dmi_strmatch matches[4];
         void *driver_data;
 };
 
-#define DMI_MATCH(a,b)  { a, b }
+#define DMI_MATCH(a, b) { a, b }
+
+struct dmi_device {
+        struct list_head list;
+        int type;
+        const char *name;
+        void *device_data;      /* Type specific data */
+};
 
 #if defined(CONFIG_X86) && !defined(CONFIG_X86_64)
 
 extern int dmi_check_system(struct dmi_system_id *list);
 extern char * dmi_get_system_info(int field);
-
+extern struct dmi_device * dmi_find_device(int type, const char *name,
+        struct dmi_device *from);
 #else
 
 static inline int dmi_check_system(struct dmi_system_id *list) { return 0; }
 static inline char * dmi_get_system_info(int field) { return NULL; }
+static struct dmi_device * dmi_find_device(int type, const char *name,
+        struct dmi_device *from) { return NULL; }
 
 #endif