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authorPeter Stuge <peter@stuge.se>2009-04-14 00:08:34 +0000
committerPeter Stuge <peter@stuge.se>2009-04-14 00:08:34 +0000
commit1d862ded11d4a2ca42d3d0aff4ea947dd28bcb68 (patch)
treed1ffd93a52e3b218827ac85fb19fb5bd51140044 /util/cbfstool/cbfs.h
parent450b23fb2ea2f08bd2e1343e0ce34ea72f19c4a9 (diff)
v2/util: romfs -> cbfs rename
It's all sed here. romfs->cbfs, ROMFS->CBFS, romtool->cbfstool Signed-off-by: Peter Stuge <peter@stuge.se> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4110 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/cbfstool/cbfs.h')
-rw-r--r--util/cbfstool/cbfs.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/util/cbfstool/cbfs.h b/util/cbfstool/cbfs.h
new file mode 100644
index 0000000000..95159ebaa8
--- /dev/null
+++ b/util/cbfstool/cbfs.h
@@ -0,0 +1,129 @@
+/*
+ * cbfstool
+ *
+ * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
+ *
+ * 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
+ */
+
+#ifndef _CBFS_H_
+#define _CBFS_H_
+
+/** These are standard values for the known compression
+ alogrithms that coreboot knows about for stages and
+ payloads. Of course, other LAR users can use whatever
+ values they want, as long as they understand them. */
+
+#define CBFS_COMPRESS_NONE 0
+#define CBFS_COMPRESS_LZMA 1
+#define CBFS_COMPRESS_NRV2B 2
+
+/** These are standard component types for well known
+ components (i.e - those that coreboot needs to consume.
+ Users are welcome to use any other value for their
+ components */
+
+#define CBFS_COMPONENT_STAGE 0x10
+#define CBFS_COMPONENT_PAYLOAD 0x20
+#define CBFS_COMPONENT_OPTIONROM 0x30
+
+#define CBFS_COMPONENT_NULL 0xFFFFFFFF
+
+/** this is the master cbfs header - it need to be
+ located somewhere in the bootblock. Where it
+ actually lives is up to coreboot. A pointer to
+ this header will live at 0xFFFFFFF4, so we can
+ easily find it. */
+
+#define HEADER_MAGIC 0x4F524243
+
+/* this is a version that gives the right answer in any endian-ness */
+#define VERSION1 0x31313131
+
+struct cbfs_header {
+ unsigned int magic;
+ unsigned int version;
+ unsigned int romsize;
+ unsigned int bootblocksize;
+ unsigned int align;
+ unsigned int offset;
+ unsigned int pad[2];
+} __attribute__ ((packed));
+
+/** This is a component header - every entry in the CBFS
+ will have this header.
+
+ This is how the component is arranged in the ROM:
+
+ -------------- <- 0
+ component header
+ -------------- <- sizeof(struct component)
+ component name
+ -------------- <- offset
+ data
+ ...
+ -------------- <- offset + len
+*/
+
+#define COMPONENT_MAGIC "LARCHIVE"
+
+struct cbfs_file {
+ char magic[8];
+ unsigned int len;
+ unsigned int type;
+ unsigned int checksum;
+ unsigned int offset;
+} __attribute__ ((packed));
+
+/*** Component sub-headers ***/
+
+/* Following are component sub-headers for the "standard"
+ component types */
+
+/** This is the sub-header for stage components. Stages are
+ loaded by coreboot during the normal boot process */
+
+struct cbfs_stage {
+ unsigned int compression; /** Compression type */
+ unsigned long long entry; /** entry point */
+ unsigned long long load; /** Where to load in memory */
+ unsigned int len; /** length of data to load */
+ unsigned int memlen; /** total length of object in memory */
+} __attribute__ ((packed));
+
+/** this is the sub-header for payload components. Payloads
+ are loaded by coreboot at the end of the boot process */
+
+struct cbfs_payload_segment {
+ unsigned int type;
+ unsigned int compression;
+ unsigned int offset;
+ unsigned long long load_addr;
+ unsigned int len;
+ unsigned int mem_len;
+} __attribute__ ((packed));
+
+struct cbfs_payload {
+ struct cbfs_payload_segment segments;
+};
+
+#define PAYLOAD_SEGMENT_CODE 0x45444F43
+#define PAYLOAD_SEGMENT_DATA 0x41544144
+#define PAYLOAD_SEGMENT_BSS 0x20535342
+#define PAYLOAD_SEGMENT_PARAMS 0x41524150
+#define PAYLOAD_SEGMENT_ENTRY 0x52544E45
+
+#define CBFS_NAME(_c) (((unsigned char *) (_c)) + sizeof(struct cbfs_file))
+
+#endif