//---------------------------------------------------------------------------
// Copyright (C) 2000 Dallas Semiconductor Corporation, All Rights Reserved.
//
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// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
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// Software is furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included
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//
// Except as contained in this notice, the name of Dallas Semiconductor
// shall not be used except as stated in the Dallas Semiconductor
// Branding Policy.
//--------------------------------------------------------------------------
//
//  owFile.h - Contains the types and constants for file I/O. 
//
//  version 1.00
//

#include "ownet.h"

#ifndef OWFILE_H
#define OWFILE_H
#define MAX_NUM_PGS   256    // this is for max pages part might have
                             // increase if you are going to use parts
                             // with more than 256 pages.
#define PAGE_TYPE     uchar  // change if the page number can be > 256
#define FILE_NAME_LEN 7      // the length of a new file
#define FIRST_FOUND   204    //  don't know how many now so return max
// Used in internal function Read_Page and page cache
#define STATUSMEM     0x80
#define REGMEM        0 
#define DEPTH         254
#define CACHE_TIMEOUT 8000
// Directory options
#define SET_DIR            0
#define READ_DIR           1
// program Job constants
#define PJOB_NONE               0
#define PJOB_WRITE              1
#define PJOB_REDIR              2
#define PJOB_ADD                3
#define PJOB_TERM               4
#define PJOB_START              0x80   
#define PJOB_MASK               0x7F
#define APPEND                  1

// external file information structure
typedef struct 
{
   uchar Name[4];          // 4
   uchar Ext;              // 1
   uchar Spage;            // 1
   uchar NumPgs;           // 1
   uchar Attrib;           // 1
   uchar BM[32];           // 32
} FileEntry;

// structure use when reading or changing the current directory               
typedef struct
{
   uchar NumEntries;      // number of entries in path 0-10 
   char  Ref;             // reference character '\' or '.' 
   char  Entries[10][4];  // sub-directory entry names                                           
} DirectoryPath;

// internal file information structure
typedef struct 
{
   uchar Name[4];          // 4  File/Directory name
   uchar Ext;              // 1  File/Directory extension
   uchar Spage;            // 1  Start page
   uchar NumPgs;           // 1  Number of pages
   uchar Attrib;           // 1  Attribute 0x01 for readonly 0x02 for hidden
   uchar Dpage;            // 1  Directory page this entry is in
   uchar Offset;           // 1  Byte offset into directory page of entry
   uchar Read;             // 1  Read = 1 if opened and 0 if created 
   uchar PDpage;           // 1  Previous directory page number
} FileInfo;

// current directory structure
typedef struct 
{
   uchar ne;          // number of entries
   struct {
      uchar name[4];  // name and extention of the sub-directory
      PAGE_TYPE page; // page the subdirectory starts on  
      uchar attrib;   // attribute of the directory
   } Entry [10];
   uchar DRom[8];     // rom that this directory is valid for
} CurrentDirectory;  

// structure to hold the program job list ~ 7977 bytes                            
typedef struct
{                    
   uchar ERom[8];          // rom of the program job target
   uchar EBitmap[32];      // bit map kept for 
   uchar OrgBitmap[32];    // original bitmap
   struct {
      uchar     wr;        // flag to indicate this page needs to be written
      PAGE_TYPE len;       // length of data
      uchar     data[29];  // data to write 
      uchar     bm[4];     // bitmap for bytes to write 
   } Page[MAX_NUM_PGS];    // 256 possible jobs
} ProgramJob;   

#endif //OWFILE_H