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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.
*/
/*--------------------------------------------------------------------------*/
#include <stdarg.h>
/* linux specific include files */
#include <linux/a.out.h>
#include <linux/elf.h>
#include <linux/linkage.h>
#include <asm/page.h>
#include "config.h"
#include "version.h"
#include "bootinfo.h"
#include "stream.h"
#include "loaderdefs.h"
/*--------------------------------------------------------------------------*/
#ifndef SEEK_SET
#define SEEK_SET 0 /* Seek from beginning of file. */
#define SEEK_CUR 1 /* Seek from current position. */
#define SEEK_END 2 /* Seek from end of file. */
#endif
#ifndef NULL
#define NULL ((void *)0)
#endif
#define BCD2BIN(x) (((x) >> 4) * 10 + ((x) & 0x0f))
#define VALUE(ptr) ((ptr) ? (*(ptr)) : 0)
/*--------------------------------------------------------------------------*/
/* Console Echo Modes
*/
#define ECHO_NONE (0)
#define ECHO_NORMAL (1)
#define ECHO_DOT (2)
#define NO_TIMEOUT (0)
/*--------------------------------------------------------------------------*/
/* image of machine registers passed in from boot roms
*/
typedef struct {
unsigned long d[8];
void *a[7];
} CALLREGS;
/*--------------------------------------------------------------------------*/
/* bootinfo (internal format)
*/
struct internal_bootinfo
{
unsigned long machtype; /* machine type */
unsigned long cputype; /* system CPU */
unsigned long fputype; /* system FPU */
unsigned long mmutype; /* system MMU */
int num_memory; /* # of memory blocks found */
struct mem_info memory[NUM_MEMINFO];/* memory description */
struct mem_info ramdisk; /* ramdisk description */
char command_line[CL_SIZE]; /* kernel command line parameters */
};
/*--------------------------------------------------------------------------*/
/* declarations of stream modules
*/
extern MODULE file_mod;
extern MODULE gunzip_mod;
/* startcode declarations */
extern char startcode_beg;
extern char startcode_end;
/*--------------------------------------------------------------------------*/
#ifndef GLOBAL
#define GLOBAL extern
#endif
struct loader_globals {
const BOOTRECORD *default_boot_record;
BOOTOPTIONS boot_options;
BOOTRECORD *boot_records;
FILEDEF *boot_files;
unsigned long map_offset;
unsigned long detected_mem_size;
char input_buffer[CL_SIZE];
char cmdln_buffer[CL_SIZE];
char sector_buffer[SECTOR_SIZE];
Elf32_Ehdr kexec_elf;
struct internal_bootinfo bi;
unsigned char cpu_type;
unsigned char fpu_type;
#ifdef BOOTINFO_COMPAT_1_0
struct compat_bootinfo compat_bootinfo;
#endif /* BOOTINFO_COMPAT_1_0 */
#define MAX_BI_SIZE (4096)
unsigned long bi_size;
union {
struct bi_record record;
unsigned char fake[MAX_BI_SIZE];
} bi_union;
void (*startcode_entry)(void);
int leader_adjust;
char force_prompt;
char debug_mode;
char callmonitor;
char master_mode;
};
GLOBAL struct loader_globals *v;
#define IOBUF_SIZE (4096)
#define STACK_SIZE (8192)
/*--------------------------------------------------------------------------*/
/* Prototypes for utility functions
*/
void loader_init (CALLREGS *regs);
void put_char (const int c);
unsigned long get_time (void);
int get_char (unsigned long timeout);
int disk_read (void *buf,unsigned long sector,unsigned long extent);
unsigned long get_compat_booti_version (void);
unsigned long get_booti_version (void);
unsigned long get_compat_machtype (void);
unsigned long get_machtype (void);
#if SYMBOL_SUPPORT
void clear_symbols (void);
int add_symbol (char *data);
#endif
void print_model (void);
int add_vme_bootinfo (void);
void call_bug (void);
const char * bootrom_args (void);
/* prototypes for file "loaderlib.c" */
void malloc_init (void *heap_base,unsigned long heap_size);
void * malloc (unsigned long size);
int free (void *memaddr);
void mem_clear (void *mem,unsigned long count);
void mem_move (void *dest,const void *srce,unsigned long count);
int mem_cmp (void *mem1,void *mem2,unsigned long count);
void disable_icache (unsigned char);
void enable_icache (unsigned char);
void invalidate_icache (unsigned char);
unsigned char get_cpu_type (void);
unsigned char get_fpu_type (void);
#if MEMORY_SIZE == 0
int ram_probe (unsigned long where);
#endif
int strlen (const char *s);
char * strcpy (char *d,const char *s);
void strcat (char *d,const char *s);
void strcatn (char *d,const char *s,unsigned long n);
void strncpy (char *d,const char *s,unsigned long n);
int vsoutput (void (*output)(const int),const char *fmt,va_list va);
int sprintf (char *buff,const char *fmt,...);
int printf (const char *fmt,...);
int put_str (const char *str);
void panic (const char *fmt,...);
int prefix_string (const char *s,const char *p);
int equal_strings (const char *s1,const char *s2);
int case_equal_strings (const char *s1,const char *s2);
int expand_bootrom_args (char *dest, const char *srce, int maxlen);
int file_size (const char *path);
int file_open (const char *path);
long file_tell (void);
int file_seek (int where,int whence);
int file_read (char *buf,int count);
void file_close (void);
void progress_init (unsigned long total);
void progress_term (const char *msg);
void progress_show (unsigned long current);
/* prototypes for file "loader.c" */
int read_line (int mode,unsigned long timeout);
const FILEMAP * find_file_map (const char *path);
void show_tag (const TAGRECORD *tr);
const char * get_tag_name (unsigned long tag);
void unexpected_tag (const TAGRECORD *tr);
const TAGRECORD * get_first_tag (void);
const TAGRECORD * get_next_tag (void);
void get_debug_tag (void);
void read_map_data (void);
const BOOTRECORD * find_boot_record (char *name);
int bootrecord_available (const BOOTRECORD *record);
void list_records (void);
const BOOTRECORD * get_boot_record (unsigned long timeout);
void loading (const char *what);
#if SYMBOL_SUPPORT
void load_symbols (const char *file_name);
#endif
void display_message_file (const char *file_name);
int check_bootinfo_version (const char *memptr);
int add_bi_record (unsigned short tag,unsigned short size,const void *data);
int add_bi_string (unsigned short tag,const unsigned char *s);
int create_bootinfo (void);
#if BOOTINFO_COMPAT_1_0
int create_compat_bootinfo (void);
#endif
void start_kernel (void (*startcode_entry)(void),unsigned long kernel_dest_addr,char *kernel_load_addr,unsigned long kernel_mem_size,unsigned long ramdisk_dest_addr,char *ramdisk_load_addr,unsigned long ramdisk_mem_size,int call_monitor);
char * load_kernel (const char *file_name,unsigned long mem_start,unsigned long *kernel_size,unsigned long extra_size);
void boot_linux (const BOOTRECORD *boot_record);
void start_loader (void);
void Main (CALLREGS *regs);
/*-----------------------------< end of file >------------------------------*/
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