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/*
* VME Linux/m68k Loader
*
* (c) Copyright 1997 by Nick Holgate
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING for more details.
*/
/*--------------------------------------------------------------------------*/
#define LILO_ID (0x4C494C4F) /* `LILO' */
#define LILO_MAPDATAID (0x4D415044) /* `MAPD' */
#define TRUE (1)
#define FALSE (0)
#define arraysize(x) (sizeof(x) / sizeof(*(x)))
/*--------------------------------------------------------------------------*/
/* File Map Entry Definition
*/
#define SECTOR_SIZE 512
typedef struct {
unsigned long offset; /* Device sector offset */
unsigned long length; /* Length in sectors */
} FILEMAP;
#define MAP_FILESIZE(map) (map[0].offset)
#define MAP_NUMFRAGS(map) (map[0].length)
#define MAP_FIRSTFRAG(map) (&map[1])
#define MAP_MAPSIZE(map) ((MAP_NUMFRAGS(map) + 1) * sizeof(FILEMAP))
/*--------------------------------------------------------------------------*/
/* Tag Record
*
* The Map File consists of a concatenation of Tag Records
*
* Tag Size Data
* --- ---- ----
*
* File Identification:
*
* TAG_LILO 0 -
*
* Boot Options:
*
* TAG_HEADER 0 -
* TAG_DEFAULT char []
* TAG_MESSAGE char []
* TAG_MASTER_PASSWORD char []
* TAG_PROMPT 4 unsigned long
* TAG_DELAY 4 unsigned long
* TAG_DEBUG 4 unsigned long
* TAG_HEADER_END 0 -
*
* Boot Records:
*
* TAG_BOOT_RECORD char []
* TAG_ALIAS char []
* TAG_KERNEL char []
* TAG_ARGUMENTS char []
* TAG_APPEND char []
* TAG_PASSWORD char []
* TAG_RAMDISK char []
* TAG_SYMTAB char []
* TAG_MEMSIZE 4 unsigned long
* TAG_CONSOLE char []
* TAG_ROOT char []
* TAG_READ_ONLY 4 unsigned long
* TAG_BOOT_RECORD_END 0 -
*
* File Records:
*
* TAG_FILE_DEF char []
* TAG_FILEMAP unsigned long []
* TAG_FILE_DEF_END 0 -
*
* End of File:
*
* TAG_EOF 0 -
*
*/
typedef struct
{
unsigned long tagid; /* Tag Identifier */
unsigned long size; /* Must be a multiple of 4 bytes */
unsigned long data[0]; /* Size bytes of Tag Data */
} TAGRECORD;
/*--------------------------------------------------------------------------*/
/* Tag Identifiers
*/
#define TAG_LILO LILO_ID /* File Identification */
#define TAG_EOF (0) /* End of File */
#define TAG_HEADER (1000) /* Start of Header */
#define TAG_HEADER_END (1001) /* End of Header */
#define TAG_DEFAULT (1002) /* Default Boot Image */
#define TAG_PROMPT (1003) /* Force Boot Prompt Flag */
#define TAG_DELAY (1004) /* Delay Value */
#define TAG_TIMEOUT (1005) /* Timeout Value */
#define TAG_DEBUG (1006) /* Debug Flag */
#define TAG_MESSAGE (1007) /* Boot message file name */
#define TAG_MASTER_PASSWORD (1008) /* Password to enable master mode */
#define TAG_BOOT_RECORD (2000) /* Start of Boot Record */
#define TAG_BOOT_RECORD_END (2001) /* End of Boot Record */
#define TAG_ALIAS (2002) /* Alias Label Name */
#define TAG_KERNEL (2003) /* Kernel Image */
#define TAG_ARGUMENTS (2004) /* Boot Arguments */
#define TAG_PASSWORD (2005) /* Password */
#define TAG_RESTRICTED (2006) /* Need Password For CmdLine Args */
#define TAG_RAMDISK (2007) /* Ramdisk Image */
#define TAG_MEMSIZE (2008) /* DRAM RAM size in bytes */
#define TAG_SYMTAB (2009) /* Symbol table file (MAP) */
#define TAG_CALLMONITOR (2010) /* Call ROM monitor before boot */
#define TAG_APPEND (2011) /* Additional Boot Arguments */
#define TAG_CONSOLE (2012) /* Console device name */
#define TAG_ROOT (2013) /* Root file system device name */
#define TAG_READ_ONLY (2014) /* read-only/read-write root flag */
#define TAG_FILE_DEF (3000) /* Start of File Definition */
#define TAG_FILE_DEF_END (3001) /* End of File Definition */
#define TAG_FILEMAP (3002) /* File Map */
/*--------------------------------------------------------------------------*/
/* Global Boot Options
*/
typedef struct {
const char *boot_default; /* Default Boot Image */
const unsigned long *boot_prompt; /* Force Boot Prompt Flag */
const unsigned long *boot_delay; /* In Seconds, Zero no delay */
const unsigned long *boot_timeout; /* In Seconds, Zero no timout */
const unsigned long *boot_debug; /* Debug Flag */
const char *boot_message; /* Boot message file name */
const char *boot_masterpswd; /* Master mode password */
} BOOTOPTIONS;
/*--------------------------------------------------------------------------*/
/* Boot Record Definitions
*/
typedef struct bootrecord {
struct bootrecord *next; /* Next Boot Record */
const char *label; /* Boot Record Label */
const char *alias; /* Alias Label Name */
const char *kernel; /* Kernel Image */
const char *cmdline; /* Default Boot Arguments */
const char *append; /* Extra Boot Arguments */
const char *password; /* Password */
const char *ramdisk; /* Ramdisk */
const char *symtab; /* Symbol Table */
const char *console; /* Console device name */
const char *root; /* Root file system device name */
const unsigned long *read_only; /* Root is read-only or read-write */
const unsigned long *memsize; /* DRAM RAM size in bytes */
const unsigned long *restricted; /* Need password for boot cmdline */
const unsigned long *callmonitor; /* Enter debugger prior to boot */
/* The following fields are only used by the vmelilo.conf configuration
* parser and are not used by the kernel loader.
*/
#ifdef CONFIG_PARSER
const unsigned long *optional; /* Boot record is optional */
#endif
} BOOTRECORD;
/*--------------------------------------------------------------------------*/
/* File Definition
*/
typedef struct filedef {
struct filedef *next; /* Next File Definition */
const char *path; /* File Path */
const FILEMAP *map; /* File Map */
#ifdef CONFIG_PARSER
int refcount; /* Reference count */
#endif
} FILEDEF;
/*-----------------------------< end of file >------------------------------*/
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