/**
* fsr_update_vol_spec - update volume & partition instance from the device
* @param volume : a volume number
*/
int fsr_update_vol_spec(u32 volume)
{
int error;
FSRVolSpec *vs;
FSRPartI *pi;
DEBUG(DL3,"TINY[I]: volume(%d)\n", volume);
vs = fsr_get_vol_spec(volume);
pi = fsr_get_part_spec(volume);
memset(vs, 0x00, sizeof(FSRVolSpec));
memset(pi, 0x00, sizeof(FSRPartI));
error = FSR_BML_GetVolSpec(volume, vs, FSR_BML_FLAG_NONE);
/* I/O error */
if (error != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_GetVolSpec func fail\n");
return -1;
}
error = FSR_BML_GetFullPartI(volume, pi);
/* I/O error */
if (error != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_GetFullPartI func fail\n");
return -1;
}
DEBUG(DL3,"TINY[O]: volume(%d)\n", volume);
return 0;
}
static int bml_block_open(struct block_device *bdev, fmode_t mode)
{
u32 volume, minor;
int ret;
minor = MINOR(bdev->bd_dev);
#else
static int bml_block_open(struct inode *inode, struct file *file)
{
u32 volume, minor;
int ret;
minor = MINOR(inode->i_rdev);
#endif
volume = fsr_vol(minor);
DEBUG(DL3,"TINY[I]: volume(%d), minor(%d)\n", volume, minor);
if (volume >= FSR_MAX_VOLUMES)
{
ERRPRINTK("TINY: Out of volume range\n");
return -ENODEV;
}
ret = FSR_BML_Open(volume, FSR_BML_FLAG_NONE);
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("TINY: open error = 0x%x\n", ret);
return -ENODEV;
}
DEBUG(DL3,"TINY[O]: volume(%d), minor(%d)\n", volume, minor);
return 0;
}
static int bml_transfer(u32 volume, u32 partno, const struct request *req)
#endif
{
unsigned long sector, nsect;
char *buf;
FSRVolSpec *vs;
FSRPartI *ps;
u32 nPgsPerUnit = 0, n1stVpn = 0, spp_shift, spp_mask;
int ret;
DEBUG(DL3,"TINY[I]: volume(%d), partno(%d)\n", volume, partno);
if (!blk_fs_request(req))
{
return 0;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)
sector = blk_rq_pos(req);
nsect = data_len >> 9;
#else
sector = req->sector;
nsect = req->current_nr_sectors;
#endif
buf = req->buffer;
vs = fsr_get_vol_spec(volume);
ps = fsr_get_part_spec(volume);
spp_shift = ffs(vs->nSctsPerPg) - 1;
spp_mask = vs->nSctsPerPg - 1;
if(!fsr_is_whole_dev(partno))
{
if (FSR_BML_GetVirUnitInfo(volume,
fsr_part_start(ps, partno), &n1stVpn, &nPgsPerUnit)
!= FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_GetVirUnitInfo FAIL\n");
return -EIO;
}
}
switch (rq_data_dir(req))
{
case READ:
/*
* If sector and nsect are aligned with vs->nSctsPerPg,
* you have to use a FSR_BML_Read() function using page unit,
* If not, use a FSR_BML_ReadScts() function using sector unit.
*/
if ((!(sector & spp_mask) && !(nsect & spp_mask)))
{
ret = FSR_BML_Read(volume, n1stVpn + (sector >> spp_shift),
nsect >> spp_shift, buf, NULL, FSR_BML_FLAG_ECC_ON);
}
else
{
/**
* fsr_init - [Init] initalize the fsr
*/
static int __init fsr_init(void)
{
int error;
DECLARE_TIMER;
/*initialize global array*/
START_TIMER();
DEBUG(DL3,"TINY[I]\n");
#if defined(FSR_OAM_ALL_DBGMSG)
FSR_DBG_SetDbgZoneMask(FSR_DBZ_ALL_ENABLE);
#endif
FSR_OAM_MEMSET(vol_spec, 0x00, sizeof(FSRVolSpec) * FSR_MAX_VOLUMES);
FSR_OAM_MEMSET(part_spec, 0x00, sizeof(FSRPartI) * FSR_MAX_VOLUMES);
error = FSR_BML_Init(FSR_BML_FLAG_NONE);
STOP_TIMER("BML_Init");
if (error != FSR_BML_SUCCESS &&
error != FSR_BML_ALREADY_INITIALIZED)
{
ERRPRINTK("Tiny BML_Init: error (%x)\n", error);
ERRPRINTK("Check the PAM module\n");
return -ENXIO;
}
/* call init bml block device */
if(bml_block_init())
{
ERRPRINTK("Tiny BML_Block init: error (%x)\n", error);
return -ENXIO;
}
DEBUG(DL3,"TINY[O]\n");
return 0;
}
/**
* BML block module init
* @return 0 on success
*/
int __init bml_block_init(void)
{
DEBUG(DL3,"TINY[I]\n");
if (bml_blkdev_init() == 0)
{
printk("FSR: Registered TinyFSR Driver.\n");
}
else
{
ERRPRINTK("FSR: Couldn't register TinyFSR Driver.\n");
}
DEBUG(DL3,"TINY[O]\n");
return 0;
}