Cleanup access to vendor/part # info

Instead of macros to access MAINBOARD record, use convenience functions.

Store pointers to MAINBOARD and HEADER for use outside of CB code.

Change-Id: I074e3a0df7d25726cbd942538bfdc5a63dd17e12
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
Reviewed-on: http://review.coreboot.org/502
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

payloads/coreinfo/coreboot_module.c

@@ -142,8 +142,8 @@ static void parse_mainboard(unsigned char *ptr)
 {
 	struct cb_mainboard *mb = (struct cb_mainboard *)ptr;
 
-	strncpy(cb_info.vendor, (const char *)MB_VENDOR_STRING(mb), 31);
+	strncpy(cb_info.vendor, cb_mb_vendor_part(mb), 31);
-	strncpy(cb_info.part, (const char *)MB_PART_STRING(mb), 31);
+	strncpy(cb_info.part, cb_mb_part_string(mb), 31);
 }
 
 static void parse_strings(unsigned char *ptr)

payloads/libpayload/arch/i386/coreboot.c

@@ -137,6 +137,8 @@ static int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
 		     header->table_bytes) != header->table_checksum)
 		return -1;
 
+	info->header = header;
+
 	/* Now, walk the tables. */
 	ptr += header->header_bytes;
 
@@ -173,6 +175,9 @@ static int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
 			cb_parse_framebuffer(ptr, info);
 			break;
 #endif
+		case CB_TAG_MAINBOARD:
+			info->mainboard = (struct cb_mainboard *)ptr;
+			break;
 		}
 
 		ptr += rec->size;

payloads/libpayload/include/coreboot_tables.h

@@ -228,6 +228,16 @@ static inline u16 cb_checksum(const void *ptr, unsigned len)
 	return ipchksum(ptr, len);
 }
 
+static inline const char *cb_mb_vendor_string(const struct cb_mainboard *cbm)
+{
+	return (char *)(cbm->strings + cbm->vendor_idx);
+}
+
+static inline const char *cb_mb_part_string(const struct cb_mainboard *cbm)
+{
+	return (char *)(cbm->strings + cbm->part_number_idx);
+}
+
 /* Helpful macros */
 
 #define MEM_RANGE_COUNT(_rec) \
@@ -237,10 +247,4 @@ static inline u16 cb_checksum(const void *ptr, unsigned len)
 	(void *)(((u8 *) (_rec)) + sizeof(*(_rec)) \
 		+ (sizeof((_rec)->map[0]) * (_idx)))
 
-#define MB_VENDOR_STRING(_mb) \
-	(((unsigned char *) ((_mb)->strings)) + (_mb)->vendor_idx)
-
-#define MB_PART_STRING(_mb) \
-	(((unsigned char *) ((_mb)->strings)) + (_mb)->part_number_idx)
-
 #endif

payloads/libpayload/include/sysinfo.h

@@ -56,6 +56,9 @@ struct sysinfo_t {
 	struct cb_framebuffer *framebuffer;
 
 	unsigned long *mbtable; /** Pointer to the multiboot table */
+
+	struct cb_header *header;
+	struct cb_mainboard *mainboard;
 };
 
 extern struct sysinfo_t lib_sysinfo;