📄 fs_conf.h
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/*
**********************************************************************
* Micrium, Inc.
* 949 Crestview Circle
* Weston, FL 33327-1848
*
* uC/FS
*
* (c) Copyright 2001 - 2003, Micrium, Inc.
* All rights reserved.
*
***********************************************************************
----------------------------------------------------------------------
File : fs_conf.h
Purpose : File system configuration
Usually all configuration of the file system for your
system can be done by changing this file.
If you are using a big endian system or a totally
different architecture, you may have to modify the file
"fs_port.h".
----------------------------------------------------------------------
Known problems or limitations with current version
----------------------------------------------------------------------
None.
---------------------------END-OF-HEADER------------------------------
*/
#ifndef _FS_CONF_H_
#define _FS_CONF_H_
/*********************************************************************
*
* #define constants
*
**********************************************************************
*/
/*********************************************************************
*
* Number of file handles
*
Set the maximum number of simultaneously open files in your system.
Please be aware, that the file system requires one FS_FILE structure
for each open file. If you are using FAT, each file will also require
two sector buffers.
*/
#define FS_MAXOPEN 1 /* Maximum number of file handles */
/*********************************************************************
*
* POSIX 1003.1 like directory functions support
*
Enables functions FS_OpenDir, FS_CloseDir, FS_ReadDir, FS_RewindDir,
FS_MkDir and FS_RmDir.
*/
#define FS_POSIX_DIR_SUPPORT 1 /* POSIX 1003.1 like directory support */
#if FS_POSIX_DIR_SUPPORT
#define FS_DIR_MAXOPEN 4 /* Maximum number of directory handles */
#endif
/*********************************************************************
*
* OS Layer
*
Set all to 0, if you do not want OS support.
*/
#define FS_OS_EMBOS 1 /* 1 = use embOS */
#define FS_OS_UCOS_II 0 /* 1 = use uC/OS-II */
#define FS_OS_WINDOWS 0 /* 1 = use WINDOWS */
#if ((FS_OS_WINDOWS==1) && ((FS_OS_EMBOS==1) || (FS_OS_UCOS_II==1)))
#error You must not use Windows at the same time as embOS or uC/OS-II!
#endif
/*********************************************************************
*
* Time/Date support
*
If your system does support ANSI C library functions for time/date,
you can set this to 1. If it is set to 0, functions FS_OS_Get_Date
and FS_OS_Get_Time will return the date 1.01.1980 0:00 unless you
modify them.
*/
#define FS_OS_TIME_SUPPORT 0 /* 1 = time()/date supported */
/*********************************************************************
*
* File System Layer
*
You can turn on/off the file system layers used in your system.
At least one layer has to be active. Because currently there is only
one file system layer supported (FAT), you will usually not change
this setting.
*/
#define FS_USE_FAT_FSL 1 /* FAT12/FAT16 file system */
/*********************************************************************
*
* Logical Block Layer
*
You can turn on/off cache of the Logical Block Layer. To use the
cache on specific device, you also have to set its size in the
device driver settings below.
*/
#define FS_USE_LB_READCACHE 0 /* 1 enables cache */
/*********************************************************************
*
* Device Driver Support
*
You can turn on/off device driver supported in your system.
If you turn on a driver, please check also its settings in this
file below.
*/
#define FS_USE_SMC_DRIVER 0 /* SmartMedia card driver */
#define FS_USE_IDE_DRIVER 1 /* IDE driver */
#define FS_USE_WINDRIVE_DRIVER 0 /* Windows Logical Drive driver */
#define FS_USE_RAMDISK_DRIVER 0 /* RAM Disk driver */
#define FS_USE_MMC_DRIVER 0 /* MMC/SD card driver */
#define FS_USE_FLASH_DRIVER 1 /* Generic flash driver */
#if (!defined(_WIN32) && (FS_USE_WINDRIVE_DRIVER))
#error Windows Logical Drive driver needs Windows API
#endif
/*********************************************************************
*
* FAT File System Layer defines
*/
#if FS_USE_FAT_FSL
/*
For each media in your system using FAT, the file system reserves
memory to keep required information of the boot sector of that media.
FS_MAXDEV is the number of device drivers in your system used
with FAT, FS_FAT_MAXUNIT is the maximum number of logical units
supported by one of the activated drivers.
*/
#define FS_MAXDEV (FS_USE_SMC_DRIVER + FS_USE_WINDRIVE_DRIVER + FS_USE_RAMDISK_DRIVER + FS_USE_MMC_DRIVER + FS_USE_IDE_DRIVER + FS_USE_FLASH_DRIVER)
#define FS_FAT_MAXUNIT 1 /* max number of medias per device */
#define FS_FAT_NOFAT32 0 /* 1 disables FAT32 support */
#define FS_FAT_NOFORMAT 0 /* 1 disables code for formatting a media */
#define FS_FAT_DISKINFO 1 /* 0 disables command FS_CMD_GET_DISKFREE */
#define FS_FAT_FWRITE_UPDATE_DIR 1 /* 1 FS_FWrite modifies directory (default), 0 directory
is modified by FS_FClose */
/*
Do not change following defines !
They may become configurable in future versions of the file system.
*/
#define FS_FAT_SEC_SIZE 0x200 /* do not change for FAT */
#endif /* FS_USE_FAT_FSL */
/*********************************************************************
*
* RAMDISK_DRIVER defines
*/
#if FS_USE_RAMDISK_DRIVER
/*
Define size of your RAM disk here.
You specify the number of sectors (512 bytes) here.
*/
#define FS_RR_BLOCKNUM 32 /* 16KB RAM */
/*
Do not change following define !
It may become configurable in future versions of the file system.
*/
#define FS_RR_BLOCKSIZE 0x200 /* do not change for FAT */
#endif /* FS_USE_RAMDISK_DRIVER */
/*********************************************************************
*
* SMC_DRIVER defines
*
Settings of the generic Smartmedia Card driver.
For using SMC in your system, you will have to provide basic
hardware access functions. Please check device\smc\hardware\XXX\smc_x_hw.c
and device\smc\hardware\XXX\smc_x_hw.h for samples.
*/
#if FS_USE_SMC_DRIVER
/*
Number of card readers in your system.
Please note, that even if your system does have more than one
SMC slot, it might be unable to access them both at the same
time, because they share resources (e.g. same data port). If that
is true for your system, you must ensure, that your implementation
of "FS_OS_Lock_deviceop(&_FS_smcdevice_driver,id)" blocks the device
driver for all values of "id"; the default implementation of the
file system's OS Layer does so.
*/
#define FS_SMC_MAXUNIT 2 /* EP7312 SMC + on board NAND */
/*
The following define does tell the generic driver, if your
system can directly check the SMC RY/BY line.
*/
#define FS_SMC_HW_SUPPORT_BSYLINE_CHECK 0 /* EP7312 does not support */
/*
FS_SMC_HW_NEEDS_POLL has to be set, if your SMC hardware driver
needs to be called periodically for status check (e.g. diskchange).
In such a case, the generic driver does provide a function
"void FS_smc_check_card(FS_u32 id)", which has to be called
periodically by your system for each card reader.
*/
#define FS_SMC_HW_NEEDS_POLL 1 /* EP7312 needs poll for diskchange */
/*
Logical Block Read Cache Settings for SMC driver.
Options are not used if FS_USE_LB_READCACHE is 0.
*/
#define FS_SMC_CACHENUM 10 /* Number of sector buffers; 0 disables cache for this device. */
/*
The minimum erase unit on an SMC is a physical block, which consists
of 16 or 32 pages. A page is 256+8 or 512+16 bytes. If the file system
is going to change a single sector (512 bytes) on the media, the SMC
driver usually has to copy the whole corresponding physical block to
a new block. To avoid that time consuming task for every single sector
write, you can provide the SMC driver with a number of sector caches
(512 bytes each). The driver will use them to cache sequential writes
to the media. If you set the value to 0, the SMC driver will not cache
any write access. A value of 1 makes no sense. The maximum of the media's
cluster size (number of logical sectors) and the number of bytes you
write with FS_FWrites divided by 512 is typically the best speed
performance value. Bigger values usually make sense only, if you plan to
bypass the FAT system by e.g. using the FS_IoCtl command
FS_CMD_WRITE_SECTOR for a large number of sequential sectors.
*/
#define FS_SMC_PAGE_BUFFER 0 /* Number of sector write caches; 0 disables write cache function. */
#endif /* FS_USE_SMC_DRIVER */
/*********************************************************************
*
* MMC_DRIVER defines
*
Settings of the generic MMC/SD card driver.
For using MMC in your system, you will have to provide basic
hardware access functions. Please check device\mmc_sd\hardware\XXX\mmc_x_hw.c
and device\mmc_sd\hardware\XXX\mmc_x_hw.h for samples.
*/
#if FS_USE_MMC_DRIVER
/*
Number of card readers in your system.
Please note, that even if your system does have more than one
MMC interface, it might be unable to access them both at the same
time, because they share resources (e.g. same data line). If that
is true for your system, you must ensure, that your implementation
of "FS_OS_Lock_deviceop(&_FS_smcdevice_driver,id)" blocks the device
driver for all values of "id"; the default implementation of the
file system's OS Layer does so.
*/
#define FS_MMC_MAXUNIT 1
/*
FS_MMC_HW_NEEDS_POLL has to be set, if your MMC hardware driver
needs to be called periodically for status check (e.g. diskchange).
*/
#define FS_MMC_HW_NEEDS_POLL 1
/*
Logical Block Read Cache Settings for MMC driver.
Options are not used if FS_USE_LB_READCACHE is 0.
*/
#define FS_MMC_CACHENUM 10 /* Number of sector buffers; 0 disables cache for this device. */
#endif /* FS_USE_MMC_DRIVER */
/*********************************************************************
*
* IDE_DRIVER defines
*
Settings of the generic IDE driver. This driver is also used to
access CF cards. For using IDE in your system, you will have to provide basic
hardware access functions. Please check device\ide\hardware\XXX\ide_x_hw.c
and device\ide\hardware\XXX\ide_x_hw.h for samples.
*/
#if FS_USE_IDE_DRIVER
/*
Number of card readers in your system.
Please note, that even if your system does have more than one
IDE interface, it might be unable to access them both at the same
time, because they share resources (e.g. same data line). If that
is true for your system, you must ensure, that your implementation
of "FS_OS_Lock_deviceop(&_FS_idedevice_driver,id)" blocks the device
driver for all values of "id"; the default implementation of the
file system's OS Layer does so.
*/
#define FS_IDE_MAXUNIT 1
/*
FS_IDE_HW_NEEDS_POLL has to be set, if your IDE hardware driver
needs to be called periodically for status check (e.g. diskchange).
*/
#define FS_IDE_HW_NEEDS_POLL 1
/*
Logical Block Read Cache Settings for IDE driver.
Options are not used if FS_USE_LB_READCACHE is 0.
*/
#define FS_IDE_CACHENUM 10 /* Number of sector buffers; 0 disables cache for this device. */
#endif /* FS_USE_IDE_DRIVER */
/*********************************************************************
*
* FLASH_DRIVER defines
*/
#if FS_USE_FLASH_DRIVER
/* Driver is currently not released */
/* Size of the used ram buffer, set to 0 if no ram buffer is used */
#define FS_FLASH_RAMBUFFER 0x4000
/* Enable/disable wear leveling for flash memory */
#define FS_FLASHWEARLEVELING 1 /* 1 = on, 0 = off */
#define FS_FLASH_MAXUNIT 1
#endif
/*********************************************************************
*
* WINDRIVE_DRIVER defines
*
This driver does allow to use any Windows logical driver on a
Windows NT system with the file system. Please be aware, that Win9X
is not supported, because it cannot access logical drives with
"CreateFile".
*/
#if FS_USE_WINDRIVE_DRIVER
/*
The following define tells WINDRIVE, how many logical drives
of your NT system you are going to access with the file system.
if your are going to use more than 2 logical drives, you
will have to modify function "_FS_wd_devstatus" of module
device\windriver\wd_misc.c.
*/
#define FS_WD_MAXUNIT 2 /* number of windows drives */
/*
Specify names of logical Windows drives used with the file system. For example,
"\\\\.\\A:" is usually the floppy of your computer.
*/
#define FS_WD_DEV0NAME "\\\\.\\A:" /* Windows drive name for "windrv:0:" */
#define FS_WD_DEV1NAME "\\\\.\\B:" /* Windows drive name for "windrv:1:" */
/*
To improve performance of WINDRIVE, it does use sector caches
for read/write operations to avoid real device operations for
each read/write access. The number of caches can be specified
below and must not be smaller than 1.
*/
#define FS_WD_CACHENUM 40 /* number of read caches per drive */
#define FS_WD_WBUFFNUM 20 /* number of write caches per drive */
/*
Do not change following define !
It may become configurable in future versions of the file system.
*/
#define FS_WD_BLOCKSIZE 0x200 /* do not change for FAT */
#endif /* FS_USE_WINDRIVE_DRIVER */
#endif /* _FS_CONF_H_ */
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