diff options
Diffstat (limited to 'util/cbfstool/cbfs.h')
| -rw-r--r-- | util/cbfstool/cbfs.h | 143 |
1 files changed, 46 insertions, 97 deletions
diff --git a/util/cbfstool/cbfs.h b/util/cbfstool/cbfs.h index 04a12fc24a..9d57165d85 100644 --- a/util/cbfstool/cbfs.h +++ b/util/cbfstool/cbfs.h @@ -1,7 +1,6 @@ /* - * cbfstool - * - * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> + * Copyright (C) 2009 coresystems GmbH + * written by Patrick Georgi <patrick.georgi@coresystems.de> * * 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 @@ -17,103 +16,39 @@ * 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 - -/* The deleted type is chosen to be a value - * that can be written in a FLASH from all other - * values. - */ -#define CBFS_COMPONENT_DELETED 0 - -/* for all known FLASH, this value can be changed - * to all other values. This allows NULL files to be - * changed without a block erase - */ -#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 +#include <stdint.h> 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]; + uint32_t magic; + uint32_t version; + uint32_t romsize; + uint32_t bootblocksize; + uint32_t align; + uint32_t offset; + uint32_t 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; + uint32_t len; + uint32_t type; + uint32_t checksum; + uint32_t 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 */ + unsigned int compression; + unsigned long long entry; + unsigned long long load; + unsigned int len; + unsigned int memlen; } __attribute__ ((packed)); -/** this is the sub-header for payload components. Payloads - are loaded by coreboot at the end of the boot process */ +#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 struct cbfs_payload_segment { unsigned int type; @@ -126,14 +61,28 @@ struct cbfs_payload_segment { struct cbfs_payload { struct cbfs_payload_segment segments; -}; +} __attribute__ ((packed)); + +/** 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 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_COMPONENT_STAGE 0x10 +#define CBFS_COMPONENT_PAYLOAD 0x20 +#define CBFS_COMPONENT_OPTIONROM 0x30 -#define CBFS_NAME(_c) (((unsigned char *) (_c)) + sizeof(struct cbfs_file)) +/* The deleted type is chosen to be a value + * that can be written in a FLASH from all other + * values. + */ +#define CBFS_COMPONENT_DELETED 0 + +/* for all known FLASH, this value can be changed + * to all other values. This allows NULL files to be + * changed without a block erase + */ +#define CBFS_COMPONENT_NULL 0xFFFFFFFF -#endif +int cbfs_file_header(uint32_t physaddr); +struct cbfs_file *cbfs_create_empty_file(uint32_t physaddr, uint32_t size); |