int32 UT_os_teardown_fs()
{
OS_unmount(g_mntName);
OS_rmfs(g_devName);
return (OS_FS_SUCCESS);
}
/*
** Name: CFE_ES_InitializeFileSystems
**
** Purpose: This function initializes the file systems used in the cFE core.
**
*/
void CFE_ES_InitializeFileSystems(uint32 start_type)
{
int32 RetStatus;
uint32 *RamDiskMemoryAddress;
uint32 RamDiskMemorySize;
int32 BlocksFree;
int32 PercentFree;
/*
** Get the memory area for the RAM disk
*/
RetStatus = CFE_PSP_GetVolatileDiskMem(&(RamDiskMemoryAddress), &(RamDiskMemorySize));
if ( RetStatus != OS_FS_SUCCESS )
{
CFE_ES_WriteToSysLog("ES Startup: Cannot Get Memory for Volatile Disk. EC = 0x%08X\n",RetStatus);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
}
/*
** Next, either format, or just initialize the RAM disk depending on
** the reset type
*/
if ( start_type == CFE_ES_POWERON_RESET )
{
RetStatus = OS_mkfs((void *)RamDiskMemoryAddress, "/ramdev0", "RAM", CFE_ES_RAM_DISK_SECTOR_SIZE, CFE_ES_RAM_DISK_NUM_SECTORS );
if ( RetStatus != OS_FS_SUCCESS )
{
CFE_ES_WriteToSysLog("ES Startup: Error Creating Volatile(RAM) Volume. EC = 0x%08X\n",RetStatus);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
}
}
else
{
RetStatus = OS_initfs((void *)RamDiskMemoryAddress, "/ramdev0", "RAM", CFE_ES_RAM_DISK_SECTOR_SIZE, CFE_ES_RAM_DISK_NUM_SECTORS );
if ( RetStatus != OS_FS_SUCCESS )
{
CFE_ES_WriteToSysLog("ES Startup: Error Initializing Volatile(RAM) Volume. EC = 0x%08X\n",RetStatus);
CFE_ES_WriteToSysLog("ES Startup: Formatting Volatile(RAM) Volume.\n");
RetStatus = OS_mkfs((void *)RamDiskMemoryAddress, "/ramdev0", "RAM", CFE_ES_RAM_DISK_SECTOR_SIZE, CFE_ES_RAM_DISK_NUM_SECTORS );
if ( RetStatus != OS_SUCCESS )
{
CFE_ES_WriteToSysLog("ES Startup: Error Creating Volatile(RAM) Volume. EC = 0x%08X\n",RetStatus);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
}
}
}
/*
** Now, mount the RAM disk
*/
RetStatus = OS_mount("/ramdev0", CFE_ES_RAM_DISK_MOUNT_STRING);
if ( RetStatus != OS_FS_SUCCESS )
{
CFE_ES_WriteToSysLog("ES Startup: Error Mounting Volatile(RAM) Volume. EC = 0x%08X\n",RetStatus);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
}
/*
** During a Processor reset, if the RAM disk has less than a defined
** amount of free space, reformat and re-mount it.
** The parameter being checked is CFE_ES_RAM_DISK_PERCENT_RESERVED
** Note: When CFE_ES_RAM_DISK_PERCENT_RESERVED is set to 0, this feature is
** disabled.
*/
if ((start_type == CFE_ES_PROCESSOR_RESET) && (CFE_ES_RAM_DISK_PERCENT_RESERVED > 0))
{
/*
** See how many blocks are free in the RAM disk
*/
BlocksFree = OS_fsBlocksFree(CFE_ES_RAM_DISK_MOUNT_STRING);
if ( BlocksFree >= 0 )
{
/*
** Need a sanity check for the desktop systems.
** Because the desktop ports map the volatile disk to the host
** hard disk, it will report more free blocks than the defined number
** of sectors ( blocks ). Therefore it must be truncated.
*/
if ( BlocksFree > CFE_ES_RAM_DISK_NUM_SECTORS )
{
BlocksFree = CFE_ES_RAM_DISK_NUM_SECTORS - 1;
}
/*
** Determine if the disk is too full
*/
BlocksFree = BlocksFree * 100;
PercentFree = BlocksFree / CFE_ES_RAM_DISK_NUM_SECTORS;
CFE_ES_WriteToSysLog("Volatile Disk has %d Percent free space.\n",PercentFree);
if ( PercentFree < CFE_ES_RAM_DISK_PERCENT_RESERVED )
{
CFE_ES_WriteToSysLog("ES Startup: Insufficent Free Space on Volatile Disk, Reformatting.\n");
/*
** First, unmount the disk
*/
RetStatus = OS_unmount(CFE_ES_RAM_DISK_MOUNT_STRING);
if ( RetStatus == OS_FS_SUCCESS )
{
/*
** Remove the file system from the OSAL
*/
RetStatus = OS_rmfs("/ramdev0");
if ( RetStatus == OS_FS_SUCCESS )
{
/*
** Next, make a new file system on the disk
*/
RetStatus = OS_mkfs((void *)RamDiskMemoryAddress, "/ramdev0",
"RAM", CFE_ES_RAM_DISK_SECTOR_SIZE,
CFE_ES_RAM_DISK_NUM_SECTORS );
if ( RetStatus == OS_FS_SUCCESS )
{
/*
** Last, remount the disk
*/
RetStatus = OS_mount("/ramdev0", CFE_ES_RAM_DISK_MOUNT_STRING);
if ( RetStatus != OS_FS_SUCCESS )
{
CFE_ES_WriteToSysLog("ES Startup: Error Re-Mounting Volatile(RAM) Volume. EC = 0x%08X\n",RetStatus);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
} /* end if mount */
}
else
{
CFE_ES_WriteToSysLog("ES Startup: Error Re-Formating Volatile(RAM) Volume. EC = 0x%08X\n",RetStatus);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
} /* end if mkfs */
}
else /* could not Remove File system */
{
CFE_ES_WriteToSysLog("ES Startup: Error Removing Volatile(RAM) Volume. EC = 0x%08X\n",RetStatus);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
} /* end if OS_rmfs */
}
else /* could not un-mount disk */
{
CFE_ES_WriteToSysLog("ES Startup: Error Un-Mounting Volatile(RAM) Volume. EC = 0x%08X\n",RetStatus);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
}
} /* end if enough free space */
}
else /* could not determine free blocks */
{
/* Log error message -- note that BlocksFree returns the error code in this case */
CFE_ES_WriteToSysLog("ES Startup: Error Determining Blocks Free on Volume. EC = 0x%08X\n",BlocksFree);
/*
** Delay to allow the message to be read
*/
OS_TaskDelay(CFE_ES_PANIC_DELAY);
/*
** cFE Cannot continue to start up.
*/
CFE_PSP_Panic(CFE_PSP_PANIC_VOLATILE_DISK);
} /* end if BlocksFree */
} /* end if processor reset */
} /* end function */
