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/*
* 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
* 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
#include <stdint.h>
#include "elf.h"
/* create a magic number in host-byte order.
* b3 is the high order byte.
* in the coreboot tools, we go with the 32-bit
* magic number convention.
* This was an inline func but that breaks anything
* that uses it in a case statement.
*/
#define makemagic(b3, b2, b1, b0)\
(((b3)<<24) | ((b2) << 16) | ((b1) << 8) | (b0))
#define CBFS_HEADER_MAGIC 0x4F524243
#define CBFS_HEADPTR_ADDR_X86 0xFFFFFFFC
#define CBFS_HEADER_VERSION1 0x31313131
#define CBFS_HEADER_VERSION2 0x31313132
#define CBFS_HEADER_VERSION CBFS_HEADER_VERSION2
struct cbfs_header {
uint32_t magic;
uint32_t version;
uint32_t romsize;
uint32_t bootblocksize;
uint32_t align;
uint32_t offset;
uint32_t architecture; /* Version 2 */
uint32_t pad[1];
} __attribute__ ((packed));
#define CBFS_ARCHITECTURE_UNKNOWN 0xFFFFFFFF
#define CBFS_ARCHITECTURE_X86 0x00000001
#define CBFS_ARCHITECTURE_ARMV7 0x00000010
#define CBFS_FILE_MAGIC "LARCHIVE"
struct cbfs_file {
uint8_t magic[8];
uint32_t len;
uint32_t type;
uint32_t checksum;
uint32_t offset;
} __attribute__ ((packed));
struct cbfs_stage {
uint32_t compression;
uint64_t entry;
uint64_t load;
uint32_t len;
uint32_t memlen;
} __attribute__ ((packed));
#define PAYLOAD_SEGMENT_CODE makemagic('C', 'O', 'D', 'E')
#define PAYLOAD_SEGMENT_DATA makemagic('D', 'A', 'T', 'A')
#define PAYLOAD_SEGMENT_BSS makemagic(' ', 'B', 'S', 'S')
#define PAYLOAD_SEGMENT_PARAMS makemagic('P', 'A', 'R', 'A')
#define PAYLOAD_SEGMENT_ENTRY makemagic('E', 'N', 'T', 'R')
struct cbfs_payload_segment {
uint32_t type;
uint32_t compression;
uint32_t offset;
uint64_t load_addr;
uint32_t len;
uint32_t mem_len;
} __attribute__ ((packed));
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 CBFS_COMPONENT_STAGE 0x10
#define CBFS_COMPONENT_PAYLOAD 0x20
#define CBFS_COMPONENT_OPTIONROM 0x30
#define CBFS_COMPONENT_BOOTSPLASH 0x40
#define CBFS_COMPONENT_RAW 0x50
#define CBFS_COMPONENT_VSA 0x51
#define CBFS_COMPONENT_MBI 0x52
#define CBFS_COMPONENT_MICROCODE 0x53
#define CBFS_COMPONENT_CMOS_DEFAULT 0xaa
#define CBFS_COMPONENT_CMOS_LAYOUT 0x01aa
/* 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
#define CBFS_NAME(_c) (((char *) (_c)) + sizeof(struct cbfs_file))
#define CBFS_SUBHEADER(_p) ( (void *) ((((uint8_t *) (_p)) + ntohl((_p)->offset))) )
/* cbfs_image.c */
uint32_t get_cbfs_entry_type(const char *name, uint32_t default_value);
const char *get_cbfs_entry_type_name(uint32_t type);
uint32_t get_cbfs_compression(const char *name, uint32_t unknown);
/* elfheaders.c */
int
elf_headers(const struct buffer *pinput,
uint32_t arch,
Elf64_Ehdr *ehdr,
Elf64_Phdr **pphdr,
Elf64_Shdr **pshdr);
#endif
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