patch to move coreboot table code into libpayload. Allows payloads
using libpayload to access coreboot tables.
Signed-Off-By: Sean Nelson <[EMAIL PROTECTED]>
---
patch for coreinfo, coming next message.
Index: include/libpayload.h
===================================================================
--- include/libpayload.h (revision 3501)
+++ include/libpayload.h (working copy)
@@ -37,6 +37,7 @@
#include <stdarg.h>
#include <lar.h>
#include <pci.h>
+#include <coreboot_tables.h>
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) > (b) ? (a) : (b))
@@ -84,6 +85,19 @@
int tm_isdst;
};
+/* drivers/cbtables.c */
+int coreboot_tables_init(void);
+struct {
+ int mem_count;
+ int mem_actual;
+ struct cb_memory_range range[MAX_MEMORY_COUNT];
+ char vendor[32];
+ char part[32];
+ char strings[10][64];
+ struct cb_serial serial;
+ struct cb_console console;
+} cb_info;
+
/* drivers/nvram.c */
u8 nvram_read(u8 addr);
void nvram_write(u8 val, u8 addr);
Index: include/coreboot_tables.h
===================================================================
--- include/coreboot_tables.h (revision 3501)
+++ include/coreboot_tables.h (working copy)
@@ -32,6 +32,8 @@
#include <arch/types.h>
+#define MAX_MEMORY_COUNT 5
+
struct cbuint64 {
u32 lo;
u32 hi;
Index: drivers/cbtables.c
===================================================================
--- drivers/cbtables.c (revision 0)
+++ drivers/cbtables.c (revision 0)
@@ -0,0 +1,151 @@
+/*
+ * This file is part of the coreinfo project.
+ *
+ * Copyright (C) 2008 Sean Nelson <[EMAIL PROTECTED]>
+ *
+ * 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 <libpayload.h>
+
+static void parse_memory(unsigned char *ptr)
+{
+ struct cb_memory *mem = (struct cb_memory *)ptr;
+ int max = (MEM_RANGE_COUNT(mem) > MAX_MEMORY_COUNT)
+ ? MAX_MEMORY_COUNT : MEM_RANGE_COUNT(mem);
+ int i;
+
+ for (i = 0; i < max; i++) {
+ struct cb_memory_range *range =
+ (struct cb_memory_range *)MEM_RANGE_PTR(mem, i);
+
+ memcpy(&cb_info.range[i], range, sizeof(*range));
+ }
+
+ cb_info.mem_count = max;
+ cb_info.mem_actual = MEM_RANGE_COUNT(mem);
+}
+
+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.part, (const char *)MB_PART_STRING(mb), 31);
+}
+
+static void parse_strings(unsigned char *ptr)
+{
+ struct cb_string *string = (struct cb_string *)ptr;
+ int index = string->tag - CB_TAG_VERSION;
+
+ strncpy(cb_info.strings[index], (const char *)string->string, 63);
+ cb_info.strings[index][63] = 0;
+}
+
+static void parse_serial(unsigned char *ptr)
+{
+ memcpy(&cb_info.serial, (struct cb_serial *)ptr,
+ sizeof(struct cb_serial));
+}
+
+static void parse_console(unsigned char *ptr)
+{
+ memcpy(&cb_info.console, (struct cb_console *)ptr,
+ sizeof(struct cb_console));
+}
+
+static int parse_header(void *addr, int len)
+{
+ struct cb_header *header;
+ unsigned char *ptr = (unsigned char *)addr;
+ int i;
+
+ for (i = 0; i < len; i += 16, ptr += 16) {
+ header = (struct cb_header *)ptr;
+
+ if (!strncmp((const char *)header->signature, "LBIO", 4))
+ break;
+ }
+
+ /* We walked the entire space and didn't find anything. */
+ if (i >= len)
+ return -1;
+
+ if (!header->table_bytes)
+ return 0;
+
+ /* FIXME: Check the checksum. */
+
+ if (ipchksum((uint16_t *) header, sizeof(*header)))
+ return -1;
+
+ if (ipchksum((uint16_t *) (ptr + sizeof(*header)), header->table_bytes)
+ != header->table_checksum)
+ return -1;
+
+ /* Now, walk the tables. */
+ ptr += header->header_bytes;
+
+ for (i = 0; i < header->table_entries; i++) {
+ struct cb_record *rec = (struct cb_record *)ptr;
+
+ switch (rec->tag) {
+ case CB_TAG_MEMORY:
+ parse_memory(ptr);
+ break;
+ case CB_TAG_MAINBOARD:
+ parse_mainboard(ptr);
+ break;
+ case CB_TAG_VERSION:
+ case CB_TAG_EXTRA_VERSION:
+ case CB_TAG_BUILD:
+ case CB_TAG_COMPILE_TIME:
+ case CB_TAG_COMPILE_BY:
+ case CB_TAG_COMPILE_HOST:
+ case CB_TAG_COMPILE_DOMAIN:
+ case CB_TAG_COMPILER:
+ case CB_TAG_LINKER:
+ case CB_TAG_ASSEMBLER:
+ parse_strings(ptr);
+ break;
+ case CB_TAG_SERIAL:
+ parse_serial(ptr);
+ break;
+ case CB_TAG_CONSOLE:
+ parse_console(ptr);
+ break;
+ default:
+ break;
+ }
+
+ ptr += rec->size;
+ }
+
+ return 1;
+}
+
+int coreboot_tables_init(void)
+{
+ int tables_good = 0;
+
+ int ret = parse_header((void *)0x00000, 0x1000);
+
+ if (ret != 1)
+ ret = parse_header((void *)0xf0000, 0x1000);
+
+ /* Return error if we couldn't find it at either address. */
+ tables_good = (ret == 1) ? 0 : -1;
+ return tables_good;
+}
Index: drivers/Makefile.inc
===================================================================
--- drivers/Makefile.inc (revision 3501)
+++ drivers/Makefile.inc (working copy)
@@ -29,6 +29,8 @@
## SUCH DAMAGE.
##
+TARGETS-y += drivers/cbtables.o
+
TARGETS-$(CONFIG_PCI) += drivers/pci.o
TARGETS-$(CONFIG_SPEAKER) += drivers/speaker.o
--
coreboot mailing list
[email protected]
http://www.coreboot.org/mailman/listinfo/coreboot
