/*****************************************************************************
 *
 * \file
 *
 * \brief FAT 12/16/32 Services.
 *
 * This file provides a set of definitions for FAT module interface.
 *
 *
 * Copyright (c) 2009 Atmel Corporation. All rights reserved.
 *
 * \asf_license_start
 *
 * \page License
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. The name of Atmel may not be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 4. This software may only be redistributed and used in connection with an
 *    Atmel microcontroller product.
 *
 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * \asf_license_stop
 *
 *****************************************************************************/

#ifndef _FAT_COM_H_
#define _FAT_COM_H_

#include "conf_explorer.h"

//! Used to have a clear code with only one segment to define a variable in project
#undef _GLOBEXT_
#if (defined _fat_c_)
#  define _GLOBEXT_
#else
#  define _GLOBEXT_ extern
#endif


//------- Check configuration defined in conf_explorer.h

#ifndef  FS_FAT_12
#  error FS_FAT_12 must be defined with true or false in conf_explorer.h
#endif
#ifndef  FS_FAT_16
#  error FS_FAT_16 must be defined with true or false in conf_explorer.h
#endif
#ifndef  FS_FAT_32
#  error FS_FAT_32 must be defined with true or false in conf_explorer.h
#endif

#ifndef  FS_MULTI_PARTITION
#  error FS_MULTI_PARTITION must be defined with true or false in conf_explorer.h
#endif
#ifndef  FS_NB_NAVIGATOR
#  error FS_NB_NAVIGATOR must be defined in conf_explorer.h
#endif


//_____ D E F I N I T I O N S ______________________________________________


//**** Defines used in function parameters

//! \name Modes of file name control functions
//! @{
#define  FS_NAME_GET          true
#define  FS_NAME_CHECK        false
//! @}

//! \name Modes of disk serial number function
//! @{
#define  FS_SN_READ           true
#define  FS_SN_WRITE          false
//! @}

//! \name Modes of disk label function
//! @{
#define  FS_LABEL_READ        true
#define  FS_LABEL_WRITE       false
//! @}

//! \name Status returned by paste file function
//! @{
#define  COPY_BUSY            0x00
#define  COPY_FAIL            0x01
#define  COPY_FINISH          0x02
//! @}

//! \name Date field managed by date control functions
//! @{
#define  FS_DATE_CREATION     true
#define  FS_DATE_LAST_WRITE   false
//! @}

//! \name File entry types used by many functions
//! @{
#define  FS_FILE              true
#define  FS_DIR               false
//! @}

//! \name Directory identifier, which corresponding at the first cluster of directory cluster list
//! @{
#define  FS_ID_DIR_EMPTY      0xFFFFFFFF     // ID no directory = bad cluster
#define  FS_ID_DIR_ROOT       0              // ID of the root directory is always the cluster 0
//! @}

//! \name File entry attributes
//! @{
#define  FS_ATTR_FILE         ((Byte)0x00)   // Normal File attribute
#define  FS_ATTR_READ_ONLY    ((Byte)0x01)   // Read Only File attribute
#define  FS_ATTR_HIDDEN       ((Byte)0x02)   // Hidden File attribute
#define  FS_ATTR_SYSTEM       ((Byte)0x04)   // System File attribute
#define  FS_ATTR_VOLUME_ID    ((Byte)0x08)   // Volume id attribute
#define  FS_ATTR_DIRECTORY    ((Byte)0x10)   // Directory attribute
#define  FS_ATTR_ARCHIVE      ((Byte)0x20)   // Archive attribute
#define  FS_ATTR_LFN_ENTRY    ((Byte)0x0F)   // LFN entry attribute
#define  Fat_is_not_a_file    ((FS_ATTR_DIRECTORY & fs_g_nav_entry.u8_attr) || (FS_ATTR_VOLUME_ID & fs_g_nav_entry.u8_attr))
//! @}

//! \name File open modes
//! @{
#define  FOPEN_READ_ACCESS    0x01                                                                    // authorize the read access
#define  FOPEN_WRITE_ACCESS   0x02                                                                    // authorize the write access
#define  FOPEN_CLEAR_SIZE     0x04                                                                    // reset size
#define  FOPEN_CLEAR_PTR      0x08                                                                    // reset flux pointer
#define  FOPEN_MODE_R         (FOPEN_READ_ACCESS|FOPEN_CLEAR_PTR)                                     //!< R   access, flux pointer = 0, size not modify
#define  FOPEN_MODE_R_PLUS    (FOPEN_READ_ACCESS|FOPEN_WRITE_ACCESS|FOPEN_CLEAR_PTR)                  //!< R/W access, flux pointer = 0, size not modify
#define  FOPEN_MODE_W         (FOPEN_WRITE_ACCESS|FOPEN_CLEAR_PTR|FOPEN_CLEAR_SIZE)                   //!< W   access, flux pointer = 0, size = 0
#define  FOPEN_MODE_W_PLUS    (FOPEN_READ_ACCESS|FOPEN_WRITE_ACCESS|FOPEN_CLEAR_PTR|FOPEN_CLEAR_SIZE) //!< R/W access, flux pointer = 0, size = 0
#define  FOPEN_MODE_APPEND    (FOPEN_WRITE_ACCESS)                                                    //!< W   access, flux pointer = at the end, size not modify
//! @}

//! \name Value to signal the end of file after a file_getc() call
#define  FS_EOF               0xFFFF

//! \name Options of format function
//! @{
#define  FS_FORMAT_DEFAULT       0x01     //!< The format routine chooses the better FAT for the device
#define  FS_FORMAT_FAT           0x02     //!< Force FAT12 or FAT16 format
#define  FS_FORMAT_FAT32         0x03     //!< Force FAT32 format
#define  FS_FORMAT_NOMBR_FLAG    0x80     //!< MBR is mandatory for USB device on MacOS, and no MBR is mandatory for CD-ROM USB device on Windows
#define  FS_FORMAT_DEFAULT_NOMBR (FS_FORMAT_NOMBR_FLAG | FS_FORMAT_DEFAULT)
#define  FS_FORMAT_FAT_NOMBR     (FS_FORMAT_NOMBR_FLAG | FS_FORMAT_FAT)
#define  FS_FORMAT_FAT32_NOMBR   (FS_FORMAT_NOMBR_FLAG | FS_FORMAT_FAT32)
//! @}


//**** communication STRUCTURES

//! \name String types depend of ASCII and UNICODE options
//! @{
typedef uint16_t UNICODE;
typedef char      _MEM_TYPE_SLOW_ * FS_STRING;
typedef UNICODE   _MEM_TYPE_SLOW_ * FS_STR_UNICODE;
//! @}

//! \name Structure to store a pointer on a file
typedef struct {
   uint8_t    u8_lun;                       //!< number of the logical driver
#if (FS_MULTI_PARTITION == true)
   uint8_t    u8_partition;                 //!< number of the partition - 1 (0 or 1) (if FS_MULTI_PARTITION == true)
#endif
   uint32_t   u32_cluster_sel_dir;          //!< first cluster of the directory corresponding at the selected file
   uint16_t   u16_entry_pos_sel_file;       //!< entry offset of selected file in selected directory (unit = FS_SIZE_FILE_ENTRY)
} Fs_index;


//**** ERROR CODE

//! \name File System errors list
//! @{
#define  FS_ERR_HW               (FAIL+0)    //!< Hardware driver error
#define  FS_ERR_NO_FORMAT        (FAIL+1)    //!< The selected drive isn't formated
#define  FS_ERR_NO_PART          (FAIL+2)    //!< The selected partition doesn't existed
#define  FS_ERR_NO_SUPPORT_PART  (FAIL+3)    //!< The selected partition isn't supported
#define  FS_ERR_TOO_FILE_OPEN    (FAIL+4)    //!< The navigation have already opened a file
#define  FS_ERR_END_OF_DRIVE     (FAIL+5)    //!< There are not other driver
#define  FS_ERR_BAD_POS          (FAIL+6)    //!< The position is over the file
#define  FS_ERR_FS               (FAIL+7)    //!< File system error
#define  FS_ERR_NO_FIND          (FAIL+8)    //!< File no found
#define  FS_ERR_ENTRY_EMPTY      (FAIL+9)    //!< File entry empty
#define  FS_ERR_ENTRY_BAD        (FAIL+10)   //!< File entry bad
#define  FS_ERR_ENTRY_BADTYPE    (FAIL+11)   //!< File entry type don't corresponding
#define  FS_ERR_NO_DIR           (FAIL+12)   //!< The selected file isn't a directory
#define  FS_ERR_NO_MOUNT         (FAIL+13)   //!< The partition isn't mounted
#define  FS_ERR_NO_FILE_SEL      (FAIL+14)   //!< There are no selected file
#define  FS_NO_LAST_LFN_ENTRY    (FAIL+15)   //!< The file entry isn't the last long file entry

#define  FS_ERR_ID_FILE          (FAIL+17)   //!< The file identifier is bad
#define  FS_ERR_NO_FILE          (FAIL+18)   //!< The selected file entry isn't a file
#define  FS_LUN_WP               (FAIL+19)   //!< Drive is in read only mode
#define  FS_ERR_READ_ONLY        (FAIL+20)   //!< File is on read access only
#define  FS_ERR_NAME_INCORRECT   (FAIL+21)   //!< The name don't corresponding at the filter name
#define  FS_ERR_FILE_NO_OPEN     (FAIL+22)   //!< No file is opened
#define  FS_ERR_HW_NO_PRESENT    (FAIL+23)   //!< Device is not present
#define  FS_ERR_IS_ROOT          (FAIL+24)   //!< There aren't parent because the current directory is a root directory
#define  FS_ERR_OUT_LIST         (FAIL+25)   //!< The position is outside the cluster list
#define  FS_ERR_NO_FREE_SPACE    (FAIL+26)   //!< No free cluster found in FAT
#define  FS_ERR_INCORRECT_NAME   (FAIL+27)   //!< Incorrect name, this one cannot contain any of the following characters \/:*?"<>|
#define  FS_ERR_DIR_NOT_EMPTY    (FAIL+28)   //!< This function erases only file and empty directory
#define  FS_ERR_WRITE_ONLY       (FAIL+29)   //!< File is on write access only
#define  FS_ERR_MODE_NOAVIALABLE (FAIL+30)   //!< This open mode isn't available
#define  FS_ERR_EOF              (FAIL+31)   //!< End of file
#define  FS_ERR_BAD_SIZE_FAT     (FAIL+32)   //!< The disk size is not supported by selected FAT format
#define  FS_ERR_COMMAND          (FAIL+33)   //!< This command is not supported
#define  FS_ERR_BUFFER_FULL      (FAIL+34)   //!< Buffer is too small
#define  FS_ERR_COPY_DIR         (FAIL+35)   //!< Directory copy is not supported
#define  FS_ERR_COPY_RUNNING     (FAIL+36)   //!< A copy action is always running
#define  FS_ERR_COPY_IMPOSSIBLE  (FAIL+37)   //!< The copy is impossible
#define  FS_ERR_BAD_NAV          (FAIL+38)   //!< The navigator identifier doesn't existed
#define  FS_ERR_FILE_OPEN        (FAIL+39)   //!< The file is already opened
#define  FS_ERR_FILE_OPEN_WR     (FAIL+40)   //!< The file is already opened in write mode
#define  FS_ERR_FILE_EXIST       (FAIL+41)   //!< The file is already existed
#define  FS_ERR_NAME_TOO_LARGE   (FAIL+42)   //!< The file name is too large (>260 characters)
#define  FS_ERR_DEVICE_TOO_SMALL (FAIL+43)   //!< The disk size is too small for format routine

#define  FS_ERR_PL_NOT_OPEN      (FAIL+50)   //!< The play list isn't opened
#define  FS_ERR_PL_ALREADY_OPEN  (FAIL+51)   //!< The play list is already opened
#define  FS_ERR_PL_LST_END       (FAIL+52)   //!< You are at the end of play list
#define  FS_ERR_PL_LST_BEG       (FAIL+53)   //!< You are at the beginning of play list
#define  FS_ERR_PL_OUT_LST       (FAIL+54)   //!< You are outside of the play list
#define  FS_ERR_PL_READ_ONLY     (FAIL+55)   //!< Impossible to modify the play list
//! @}


//! \name Compilation feature levels
//! @{
#define  FSFEATURE_READ                0x00  //!< All read functions
#define  FSFEATURE_WRITE               0x02  //!< nav_file_copy(), nav_file_paste(), nav_file_del(), file_create(), file_open(MODE_WRITE), file_write(), file_putc()
#define  FSFEATURE_WRITE_COMPLET       0x06  //!< FSFEATURE_WRITE + nav_drive_format(), nav_dir_make(), nav_file_rename(), nav_file_dateset(), nav_file_attributset()
#define  FSFEATURE_ALL                 0xFF  //!< All file system module
//! @}


//! \name Status type for the file system
typedef  uint8_t                   Fs_status;
//! \name Global status of file system module (used to return error number)
_GLOBEXT_ _MEM_TYPE_SLOW_ Fs_status fs_g_status;

#endif  // _FAT_COM_H_
