elua/inc/romfs.h

// Read-only ROM filesystem

#ifndef __FS_H__
#define __FS_H__

#include "type.h"
#include "devman.h"
// Maximum length of a filename in the filesystem
#define MAX_FNAME_LENGTH      14

/*******************************************************************************
We assume that the "filesystem" resides in a contiguous zone of memory, with the
following structure:

filename (ASCIIZ, max length is MAX_FNAME_LENGTH defined in "netdefs.h", empty if last file)
file size (2 bytes)
*******************************************************************************/

enum
{
  FS_FILE_NOT_FOUND,
  FS_FILE_OK
};
 
// This is the function used to read a byte at the given address from the file
// system
typedef u8 ( *p_read_fs_byte )( u16 );

// A small "FILE" structure
typedef struct 
{
  u16 baseaddr;
  u16 offset;
  u16 size;
  p_read_fs_byte p_read_func;
} FS;

// FS functions
DM_DEVICE* romfs_init();

#endif