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authorStefan Reinauer <stepan@coresystems.de>2008-01-18 16:17:44 +0000
committerStefan Reinauer <stefan.reinauer@coreboot.org>2008-01-18 16:17:44 +0000
commit2fbe6247a9c328628d521b14eee90bd5be378685 (patch)
treee8b539403a956b5d969228891acb173aff2ccf3d /lbtable.c
parente3f3e2edb4f45ff5f53df3a3b4012bc5e60f1bb8 (diff)
downloadast2050-flashrom-2fbe6247a9c328628d521b14eee90bd5be378685.zip
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Rename linuxbios_* files in utils repository
Corresponding to flashrom svn r179 and coreboot v2 svn r3058. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de>
Diffstat (limited to 'lbtable.c')
-rw-r--r--lbtable.c218
1 files changed, 0 insertions, 218 deletions
diff --git a/lbtable.c b/lbtable.c
deleted file mode 100644
index 1cca964..0000000
--- a/lbtable.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * This file is part of the flashrom project.
- *
- * Copyright (C) 2002 Steven James <pyro@linuxlabs.com>
- * Copyright (C) 2002 Linux Networx
- * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx)
- * Copyright (C) 2006-2007 coresystems GmbH
- * (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/mman.h>
-#include "flash.h"
-#include "linuxbios_tables.h"
-
-char *lb_part = NULL, *lb_vendor = NULL;
-
-static unsigned long compute_checksum(void *addr, unsigned long length)
-{
- uint8_t *ptr;
- volatile union {
- uint8_t byte[2];
- uint16_t word;
- } value;
- unsigned long sum;
- unsigned long i;
-
- /* In the most straight forward way possible,
- * compute an ip style checksum.
- */
- sum = 0;
- ptr = addr;
- for (i = 0; i < length; i++) {
- unsigned long value;
- value = ptr[i];
- if (i & 1) {
- value <<= 8;
- }
- /* Add the new value */
- sum += value;
- /* Wrap around the carry */
- if (sum > 0xFFFF) {
- sum = (sum + (sum >> 16)) & 0xFFFF;
- }
- }
- value.byte[0] = sum & 0xff;
- value.byte[1] = (sum >> 8) & 0xff;
-
- return (~value.word) & 0xFFFF;
-}
-
-#define for_each_lbrec(head, rec) \
- for(rec = (struct lb_record *)(((char *)head) + sizeof(*head)); \
- (((char *)rec) < (((char *)head) + sizeof(*head) + head->table_bytes)) && \
- (rec->size >= 1) && \
- ((((char *)rec) + rec->size) <= (((char *)head) + sizeof(*head) + head->table_bytes)); \
- rec = (struct lb_record *)(((char *)rec) + rec->size))
-
-static int count_lb_records(struct lb_header *head)
-{
- struct lb_record *rec;
- int count;
-
- count = 0;
- for_each_lbrec(head, rec) {
- count++;
- }
-
- return count;
-}
-
-static struct lb_header *find_lb_table(void *base, unsigned long start,
- unsigned long end)
-{
- unsigned long addr;
-
- /* For now be stupid.... */
- for (addr = start; addr < end; addr += 16) {
- struct lb_header *head =
- (struct lb_header *)(((char *)base) + addr);
- struct lb_record *recs =
- (struct lb_record *)(((char *)base) + addr + sizeof(*head));
- if (memcmp(head->signature, "LBIO", 4) != 0)
- continue;
- printf_debug("Found canidate at: %08lx-%08lx\n",
- addr, addr + head->table_bytes);
- if (head->header_bytes != sizeof(*head)) {
- fprintf(stderr, "Header bytes of %d are incorrect.\n",
- head->header_bytes);
- continue;
- }
- if (count_lb_records(head) != head->table_entries) {
- fprintf(stderr, "Bad record count: %d.\n",
- head->table_entries);
- continue;
- }
- if (compute_checksum((uint8_t *) head, sizeof(*head)) != 0) {
- fprintf(stderr, "Bad header checksum.\n");
- continue;
- }
- if (compute_checksum(recs, head->table_bytes)
- != head->table_checksum) {
- fprintf(stderr, "Bad table checksum: %04x.\n",
- head->table_checksum);
- continue;
- }
- fprintf(stdout, "Found coreboot table at 0x%08lx.\n", addr);
- return head;
-
- };
-
- return 0;
-}
-
-static void find_mainboard(struct lb_record *ptr, unsigned long addr)
-{
- struct lb_mainboard *rec;
- int max_size;
- char vendor[256], part[256];
-
- rec = (struct lb_mainboard *)ptr;
- max_size = rec->size - sizeof(*rec);
- printf("Vendor ID: %.*s, part ID: %.*s\n",
- max_size - rec->vendor_idx,
- rec->strings + rec->vendor_idx,
- max_size - rec->part_number_idx,
- rec->strings + rec->part_number_idx);
- snprintf(vendor, 255, "%.*s", max_size - rec->vendor_idx,
- rec->strings + rec->vendor_idx);
- snprintf(part, 255, "%.*s", max_size - rec->part_number_idx,
- rec->strings + rec->part_number_idx);
-
- if (lb_part) {
- printf("Overwritten by command line, vendor ID: %s, part ID: %s.\n", lb_vendor, lb_part);
- } else {
- lb_part = strdup(part);
- lb_vendor = strdup(vendor);
- }
-}
-
-static struct lb_record *next_record(struct lb_record *rec)
-{
- return (struct lb_record *)(((char *)rec) + rec->size);
-}
-
-static void search_lb_records(struct lb_record *rec, struct lb_record *last,
- unsigned long addr)
-{
- struct lb_record *next;
- int count;
- count = 0;
-
- for (next = next_record(rec); (rec < last) && (next <= last);
- rec = next, addr += rec->size) {
- next = next_record(rec);
- count++;
- if (rec->tag == LB_TAG_MAINBOARD) {
- find_mainboard(rec, addr);
- break;
- }
- }
-}
-
-int coreboot_init(void)
-{
- uint8_t *low_1MB;
- struct lb_header *lb_table;
- struct lb_record *rec, *last;
-
- low_1MB = mmap(0, 1024 * 1024, PROT_READ, MAP_SHARED, fd_mem,
- 0x00000000);
- if (low_1MB == MAP_FAILED) {
- perror("Can't mmap memory using " MEM_DEV);
- exit(-2);
- }
- lb_table = 0;
- if (!lb_table)
- lb_table = find_lb_table(low_1MB, 0x00000, 0x1000);
- if (!lb_table)
- lb_table = find_lb_table(low_1MB, 0xf0000, 1024 * 1024);
- if (lb_table) {
- unsigned long addr;
- addr = ((char *)lb_table) - ((char *)low_1MB);
- printf_debug("Coreboot table found at %p.\n", lb_table);
- rec = (struct lb_record *)(((char *)lb_table) + lb_table->header_bytes);
- last = (struct lb_record *)(((char *)rec) + lb_table->table_bytes);
- printf_debug("Coreboot header(%d) checksum: %04x table(%d) checksum: %04x entries: %d\n",
- lb_table->header_bytes, lb_table->header_checksum,
- lb_table->table_bytes, lb_table->table_checksum,
- lb_table->table_entries);
- search_lb_records(rec, last, addr + lb_table->header_bytes);
- } else {
- printf("No coreboot table found.\n");
- return -1;
- }
-
- return 0;
-}
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