STATUS usrRamDiskInit ()
{
BLK_DEV *pBlkDev;
DOS_VOL_DESC *pVolDesc;
/* create a ram disk */
pBlkDev=ramDevCreate(0, 512, 400, 200000, 0);
if(pBlkDev==NULL){
printf("ran disk create error!!\n");
printErrno();
return ERROR;
}
/* Create Ram Disk Device */
/*if(dosFsDevCreate("/ram0", pBlkDev, 4, NULL)==NULL){
printf("create ramdisk error!!!\n");
printErrno();
return ERROR;
}*/
/* Format dosFs */
/*if(dosFsVolFormat(pBlkDev, DOS_OPT_BLANK | DOS_OPT_QUIET | DOS_OPT_FAT32, NULL)==NULL){
printf("Format dosFs error!!!\n");
printErrno();
return ERROR;
}*/
pVolDesc=dosFsMkfs("/ram0",pBlkDev);
return OK;
}
STATUS
flashFsLibInit(void)
{
int bootSize;
/*
* We are considered initialized once flashDosVolDesc is non-NULL.
*/
if (flashDosVolDesc) {
return OK;
}
if (flashDrvLibInit() == ERROR) {
printf("flashFsLibInit(): flashDrvLibInit() failed\n");
return (ERROR);
}
/*
* Determine where our file system starts
*/
if (flashFsFindBootPartition(&bootSize) == OK) {
flashBootSize = bootSize;
}
printf("Flash boot partition size = %d KB\n", flashBootSize / 1024);
/*
* Set up BLK DEV structure
*/
flashBlkDev.bd_blkRd = flashFsBlkRead;
flashBlkDev.bd_blkWrt = flashFsBlkWrite;
flashBlkDev.bd_ioctl = flashFsIoctl;
flashBlkDev.bd_reset = NULL;
flashBlkDev.bd_statusChk = NULL;
flashBlkDev.bd_removable = FALSE;
flashBlkDev.bd_nBlocks = FLASH_FS_SIZE_BLOCKS;
flashBlkDev.bd_bytesPerBlk = FLASH_FS_BLOCK_SIZE;
flashBlkDev.bd_blksPerTrack = 1;
flashBlkDev.bd_nHeads = 1;
flashBlkDev.bd_retry = 1;
flashBlkDev.bd_mode = O_RDWR;
flashBlkDev.bd_readyChanged = FALSE;
if (flashFsVerbose) {
printf("flashFsLibInit: Initializing...");
}
if (!flashDosFormat) {
#define DOS_OPT_DYNAMIC (DOS_OPT_CHANGENOWARN | DOS_OPT_AUTOSYNC)
if (dosFsDevInitOptionsSet (DOS_OPT_DYNAMIC) != OK) {
printf("flashFsLibInit: dosFsDevInitOptionsSet failed\n");
return (ERROR);
}
flashDosVolDesc = dosFsDevInit(FLASH_FS_NAME, &flashBlkDev, NULL);
}
if (flashDosVolDesc == NULL) {
if (flashFsVerbose) {
printf("\nflashFsLibInit: first time initialization...\n");
}
if (dosFsMkfsOptionsSet(DOS_OPT_LONGNAMES) == ERROR) {
printf("flashFsLibInit: dosFsMkfsOptionsSet failed\n");
}
flashDosVolDesc = dosFsMkfs(FLASH_FS_NAME, &flashBlkDev);
if (flashDosVolDesc == NULL) {
printf("flashFsLibInit (first init): dosFsMkfs failed!");
printf("(0x%x)\n", errno);
return ERROR;
} else {
if (flashFsVerbose) {
printf("done\n");
}
}
}
if (flashFsVerbose) {
printf("done\n");
}
flashFsSync();
return OK;
}
