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bml_block.c
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bml_block.c
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/*
*---------------------------------------------------------------------------*
* *
* COPYRIGHT. SAMSUNG ELECTRONICS CO., LTD. *
* ALL RIGHTS RESERVED *
* *
* Permission is hereby granted to licensees of Samsung Electronics Co., *
* Ltd. products to use this computer program only in accordance with the *
* terms of the SAMSUNG FLASH MEMORY DRIVER SOFTWARE LICENSE AGREEMENT. *
* *
*---------------------------------------------------------------------------*
*/
/**
* @version LinuStoreIII_1.2.0_b035-FSR_1.2.1p1_b129_RC
* @file drivers/fsr/bml_block.c
* @brief This file is BML common part which supports the raw interface
* It provides block device operations and utilities
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <asm/errno.h>
#include <asm/uaccess.h>
#include "fsr_base.h"
/**
* Delcaration for getting a STL's ioctl
*/
static int (*stl_ioctl_func)(u32 volume, u32 partno, u32 cmd, u32 arg) = NULL;
/**
* update the information about whole partitions on linux blkdev
* @param volume volume number
* @return 0 on success, -1 on failure
*/
static int bml_update_whole_blkdev(u32 volume)
{
int ret = 0;
u32 i, minor, partsize, pagesize, blocksize;
FSRVolSpec *vs = fsr_get_vol_spec(volume);
FSRPartI *pi = fsr_get_part_spec(volume);
/* update the block size */
for (i = 0 ; i < pi->nNumOfPartEntry ; i++)
{
minor = fsr_minor(volume, i);
blocksize = fsr_vol_unitsize(volume, i) >> 10U; /* by 1KB */
partsize = pi->stPEntry[i].nNumOfUnits * blocksize; /* by 1KB */
pagesize = fsr_vol_spp(vs) << 9U;/* by Byte*/
ret = bml_update_blkdev_param(minor, partsize, pagesize);
if ( 0 != ret)
{
ERRPRINTK("bml_update_blkdev_param function fail");
}
}
return ret;
}
/**
* read/write partition to device from user's request
* @param cmd BML_SET_PART_TAB
* @param volume a volume number
* @param *user_parts the pointer of partition information came from user
* @return 0 on success, otherwise on failure
*/
static int bml_rw_parts_from_user(u32 cmd, u32 volume, BML_PARTTAB_T *user_parts)
{
int ret = -1;
BML_PARTTAB_T *kparts;
kparts = (BML_PARTTAB_T *) kmalloc(sizeof(BML_PARTTAB_T), GFP_KERNEL);
if (!kparts)
{
ERRPRINTK("kmalloc error");
return -ENOMEM;
}
memset(kparts, 0, sizeof(BML_PARTTAB_T));
ret = (int) copy_from_user((char *)kparts, (char *)user_parts,
sizeof(BML_PARTTAB_T));
/* memory error */
if (ret)
{
ERRPRINTK("copy_from_user error");
ret = -EFAULT;
goto end_io;
}
ret = fsr_write_partitions(volume, kparts);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("fsr_write_partition error");
ret = -EIO;
goto end_io;
}
ret = bml_update_whole_blkdev(volume);
end_io:
kfree(kparts);
return ret;
}
/**
* dump/restore devcie at the request of user
* @param cmd BML_DUMP/BML_RESTORE, otherwise error
* @param volume a volume number
* @param partno a partition number
* @param user_page the pointer of page information and buffer
* @return 0 on success, otherwise on failure
*/
static int bml_dump_from_user(u32 cmd, u32 volume, u32 partno, PAGEINFO_T *user_page)
{
int ret = 0;
unsigned int page;
PAGEINFO_T *kpage;
u32 nPgsPerUnit = 0, n1stVpn = 0;
FSRVolSpec *vs = fsr_get_vol_spec(volume);
FSRPartI *pi = fsr_get_part_spec(volume);
kpage = (PAGEINFO_T *)kmalloc(sizeof(PAGEINFO_T), GFP_KERNEL);
/* memory error */
if (!kpage)
{
ERRPRINTK("kmalloc error error");
return -ENOMEM;
}
do
{
ret = (int) copy_from_user(kpage, user_page, sizeof(PAGEINFO_T));
/* memory error */
if (ret)
{
ERRPRINTK("copy_to_user error");
ret = -EFAULT;
break;
}
page = kpage->offset;
if (!fsr_is_whole_dev(partno))
{
if (FSR_BML_GetVirUnitInfo(volume, fsr_part_start(pi, partno),
&n1stVpn, &nPgsPerUnit) != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_GetVirUnitInfo FAIL");
ret = -EIO;
break;
}
/* out-of-range input */
if (page >= (fsr_part_units_nr(pi, partno) *
fsr_part_ppu(vs, pi, partno)))
{
ERRPRINTK("Out of range input value");
ret = -EIO;
break;
}
}
else
{
/* out-of-range input */
if (page >= fsr_vol_pages_nr(volume))
{
ERRPRINTK("Out of range input value");
ret = -EIO;
break;
}
}
if (cmd == BML_DUMP)
{
ret = FSR_BML_Read(volume, n1stVpn + page, 1, kpage->mbuf,
NULL,
FSR_BML_FLAG_ECC_ON);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("ret: %x offset: %x page: %d",
ret, kpage->offset, page);
ret = -EIO;
break;
}
ret = (int) copy_to_user(user_page, kpage, sizeof(PAGEINFO_T));
/* memory error */
if (ret)
{
ERRPRINTK("copy_to_user error");
ret = -EFAULT;
break;
}
}
else if (cmd == BML_RESTORE)
{
if(likely(!fsr_is_whole_dev(partno)))
{
/* unit start */
if ((page & (fsr_part_ppu(vs, pi, partno) - 1)) == 0U)
{
u32 unit = fsr_part_start(pi, partno) +
(page / fsr_part_ppu(vs, pi, partno));
ret = FSR_BML_Erase(volume, &unit, 1, FSR_BML_FLAG_NONE);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_Erase Error [0x%08x]", ret);
ret = -EIO;
break;
}
}
}
else
{
if (page == 0)
{
u32 start_unit = 0, end_unit = fsr_vol_unit_nr(vs);
while (start_unit < end_unit)
{
ret = FSR_BML_Erase(volume, &start_unit, 1,
FSR_BML_FLAG_NONE);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_Erase Fail [0x%08x]", ret);
return -EIO;
}
++start_unit;
}
}
}
ret = FSR_BML_Write(volume, n1stVpn + page, 1, kpage->mbuf,
NULL, FSR_BML_FLAG_ECC_ON);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_Write Error. offset: %x page: %d [0x%08x]",
kpage->offset, page, ret);
ret = -EIO;
break;
}
}
else /*unknown command*/
{
ret = -EINVAL;
break;
}
ret = 0;
} while(0);
kfree(kpage);
return ret;
}
/**
* dump/restore devcie at the request of user
* @param cmd LLD_READ/LLD_WRITE, otherwise error
* @param volume a volume number
* @param user_page the pointer of page information and buffer
* @return 0 on success, otherwise on failure
*/
static int lld_operation_from_user(u32 cmd, u32 volume, PAGEINFO_T *user_page)
{
int ret;
FSRDevSpec stDevSpec;
PAGEINFO_T *kpage;
FSRLowFuncTbl *gpstFSRLFT;
gpstFSRLFT = fsr_get_low_tbl(volume);
ret = gpstFSRLFT->LLD_GetDevSpec(0, &stDevSpec,
FSR_LLD_FLAG_NONE);
if(ret != FSR_LLD_SUCCESS)
{
ERRPRINTK("LLD_GetDevSpec Fail [0x%08x]", ret);
return -EIO;
}
kpage = (PAGEINFO_T *)kmalloc(sizeof(PAGEINFO_T),
GFP_KERNEL);
if (kpage == NULL)
{
ERRPRINTK("kmalloc Fail [kmalloc return value : 0x%x]", ret);
return -ENOMEM;
}
do
{
ret = (int) copy_from_user
(kpage, user_page, sizeof(PAGEINFO_T));
if (ret)
{
ret = -EFAULT;
break;
}
if (cmd == LLD_BOOT_WRITE)
{
if (kpage->offset == 0)
{
int boot_blk = 0;
ret = gpstFSRLFT->LLD_Erase(0, &boot_blk, 1,
FSR_LLD_FLAG_NONE);
if (ret != FSR_LLD_SUCCESS)
{
ERRPRINTK("LLD_Erase Fail [0x%08x]", ret);
ret = -EIO;
break;
}
ret = gpstFSRLFT->LLD_FlushOp(0, 0, FSR_LLD_FLAG_NONE);
if (ret != FSR_LLD_SUCCESS)
{
ERRPRINTK("LLD_FlushOp Fail [0x%08x]", ret);
ret = -EIO;
break;
}
}
ret = gpstFSRLFT->LLD_Write(0, 0, kpage->offset,
kpage->mbuf, NULL,
FSR_LLD_FLAG_1X_PROGRAM |
FSR_LLD_FLAG_ECC_ON);
if (ret != FSR_LLD_SUCCESS)
{
ERRPRINTK("LLD_Write Fail [0x%08x]", ret);
ret = -EIO;
break;
}
ret = gpstFSRLFT->LLD_FlushOp(0, 0, FSR_LLD_FLAG_NONE);
if (ret != FSR_LLD_SUCCESS)
{
ERRPRINTK("LLD_FlushOp Fail [0x%08x]", ret);
ret = -EIO;
break;
}
}
else if (cmd == LLD_BOOT_READ)
{
ret = gpstFSRLFT->LLD_Read(0, 0, kpage->offset,
kpage->mbuf, NULL,
FSR_LLD_FLAG_TRANSFER |
FSR_LLD_FLAG_ECC_ON);
if (ret != FSR_LLD_SUCCESS)
{
ERRPRINTK("LLD_Read Fail [0x%08x]", ret);
ret = -EIO;
break;
}
ret = gpstFSRLFT->LLD_FlushOp(0, 0, FSR_LLD_FLAG_NONE);
if (ret != FSR_LLD_SUCCESS)
{
ERRPRINTK("LLD_FlushOp Fail [0x%08x]", ret);
ret = -EIO;
break;
}
ret = (int) copy_to_user((char *)user_page, (char *)kpage,
sizeof(PAGEINFO_T));
/* memory error */
if (ret)
{
ret = -EFAULT;
break;
}
}
ret = 0;
} while(0);
kfree(kpage);
return ret;
}
static int
fsr_dump_from_user(u32 cmd, u32 volume, u32 partno, BML_DUMP_T *user_page)
{
u8 *pBuf = 0;
int ret = 0;
u32 nDumpOrder, nPartIdx;
u32 nNumOfBytes;
FSRPartI *pi;
FSRVolSpec *vs;
BML_DUMP_T *kpage;
FSRDumpPEList pstPEList;
kpage = (BML_DUMP_T *) kmalloc(sizeof(BML_DUMP_T), GFP_KERNEL);
if (kpage == NULL)
{
ERRPRINTK("kmalloc Fail");
return -ENOMEM;
}
vs = fsr_get_vol_spec(volume);
pi = fsr_get_part_spec(volume);
do
{
ret = (int) copy_from_user((char *)kpage, (char *)user_page, sizeof(BML_DUMP_T));
if (ret)
{
ret = -EFAULT;
break;
}
pBuf = FSR_OAM_Malloc(vs->nSizeOfDumpBuf << 1);
if (pBuf == NULL)
{
ERRPRINTK("FSR_OAM_Malloc Fail");
ret = -EIO;
break;
}
nDumpOrder = kpage->status;
FSR_OAM_MEMSET((void *) &pstPEList, 0x00, sizeof(FSRDumpPEList));
pstPEList.nNumOfPEntry = 0;
for(nPartIdx = 0; nPartIdx < pi->nNumOfPartEntry ; nPartIdx++)
{
if (kpage->dump_parts[nPartIdx] == 1)
{
FSR_OAM_MEMCPY(&(pstPEList.stPEntry[pstPEList.nNumOfPEntry++]), &(pi->stPEntry[nPartIdx]), sizeof(FSRPartEntry));
}
}
nNumOfBytes = 0;
FSR_OAM_MEMSET(pBuf, 0x00, vs->nSizeOfDumpBuf);
ret = FSR_BML_Dump(volume, FSR_DUMP_PARTITION, nDumpOrder,
&pstPEList, pBuf, (u32 *) &nNumOfBytes);
if ((ret != FSR_BML_DUMP_COMPLETE) &&
(ret != FSR_BML_DUMP_INCOMPLETE))
{
ERRPRINTK("FSR_DUMP_PARTITION Fail [0x%08x]",
ret);
ret = 1;
break;
}
kpage->dump_size = nNumOfBytes;
kpage->status = ret;
ret = (int) copy_to_user((char *)user_page, (char *)kpage, sizeof(BML_DUMP_T));
if (ret)
{
ERRPRINTK("copy_to_user");
ret = -EFAULT;
break;
}
ret = (int) copy_to_user((char *)user_page->dump_pBuf, (char *)pBuf, nNumOfBytes);
if (ret)
{
ERRPRINTK("copy_to_user");
break;
}
ret = 0;
} while (0);
if (pBuf)
{
FSR_OAM_Free(pBuf);
}
if (kpage)
{
kfree(kpage);
}
return ret;
}
/**
* BML block open operation
* @param inode block device inode
* @param file block device file
* @return 0 on success, otherwise on failure
*/
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
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,"BML[I]: volume(%d), minor(%d)", volume, minor);
if (volume >= FSR_MAX_VOLUMES)
{
ERRPRINTK("Invalid volume");
return -ENODEV;
}
ret = FSR_BML_Open(volume, FSR_BML_FLAG_NONE);
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("BML: FSR_BML_Open error[0x%08x]", ret);
return -ENODEV;
}
DEBUG(DL3,"BML[o]: volume(%d), minor(%d)", volume, minor);
return 0;
}
/**
* bml_block_release - BML block release operation
* @param inode block device inode
* @param file block device file
* @return 0 on success
*/
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
static int bml_block_release(struct gendisk *disk, fmode_t mode)
{
u32 volume, minor;
minor = disk->first_minor;
#else
static int bml_block_release(struct inode *inode, struct file *file)
{
u32 volume, minor;
minor = MINOR(inode->i_rdev);
#endif
volume = fsr_vol(minor);
DEBUG(DL3,"BML[I]: volume(%d), minor(%d)", volume, minor);
FSR_BML_Close(volume, FSR_BML_FLAG_NONE);
DEBUG(DL3,"BML[O]: volume(%d), minor(%d)", volume, minor);
return 0;
}
/**
* otp_operation_from_user - BML block release operation
* @param cmd IOCTL command - ref. include/linux/fsr_if.h
* @param volume a volume number
* @param user_page user page information
* @return 0 on success
*/
static int otp_operation_from_user(u32 cmd, u32 volume, OTP_PAGEINFO_T *user_page)
{
s32 ret = 0;
u32 page;
u32 n1stVpn = 0;
OTP_PAGEINFO_T *kpage;
FSRVolSpec *vs;
vs = fsr_get_vol_spec(volume);
DEBUG(DL3, "IN IOCtl Command : 0x%x\n", cmd);
/* OTP_PAGEINFO_T allocation */
kpage = (OTP_PAGEINFO_T *)kmalloc(sizeof(OTP_PAGEINFO_T), GFP_KERNEL);
if (kpage == NULL)
{
ERRPRINTK("kmalloc fail for OTP_PAGEINFO_T structure");
return -ENOMEM;
}
do
{
ret = (int) copy_from_user(kpage, user_page, sizeof(OTP_PAGEINFO_T));
/* memory error */
if (ret)
{
ERRPRINTK("copy_to_user error");
ret = -EFAULT;
break;
}
page = kpage->offset;
if (cmd == BML_OTP_READ)
{
/* OTP Block Read */
ret = FSR_BML_OTPRead(volume, n1stVpn + page, 1, kpage->mbuf, NULL, FSR_BML_FLAG_NONE);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("ret: %x offset: %x page: %d", ret, kpage->offset, page);
ret = -EIO;
break;
}
ret = (int) copy_to_user(user_page, kpage, sizeof(OTP_PAGEINFO_T));
/* memory error */
if (ret)
{
ERRPRINTK("copy_to_user error");
ret = -EFAULT;
break;
}
}
else if(cmd == BML_OTP_WRITE)
{
/* OTP Block Write */
ret = FSR_BML_OTPWrite(volume, n1stVpn + page, 1, kpage->mbuf, NULL, FSR_BML_FLAG_NONE);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("ret: %x offset: %x page: %d", ret, kpage->offset, page);
ret = -EIO;
break;
}
}
else
{
ERRPRINTK("Invalid IOCtl Command. [cmd : 0x%x]", cmd);
ret = -EIO;
}
}
while(0);
DEBUG(DL3, "OUT IOCtl Command : 0x%x\n", cmd);
return ret;
}
/**
* BML raw block I/O control
* @param inode block device inode
* @param file block device file
* @param cmd IOCTL command - ref. include/linux/fsr_if.h
* @param arg arguemnt from user
* @return 0 on success, otherwise on failure
*/
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
static int bml_block_ioctl(struct block_device *bdev, fmode_t mode,
unsigned cmd, unsigned long arg)
{
u32 minor = MINOR(bdev->bd_dev);
#else
static int bml_block_ioctl(struct inode *inode, struct file *file,
unsigned cmd, unsigned long arg)
{
u32 minor = MINOR(inode->i_rdev);
#endif
u32 volume = fsr_vol(minor);
u32 partno = fsr_part(minor);
int ret = 0;
FSRVolSpec *vs;
FSRPartI *pi;
vs = fsr_get_vol_spec(volume);
pi = fsr_get_part_spec(volume);
DEBUG(DL3,"volume(%d), minor(%d), cmd(%x)\n", volume, minor, cmd);
switch (cmd)
{
case BML_DUMP:
case BML_RESTORE:
{
DEBUG(DL3, "IN BML_DUMP : 0x%x\n", cmd);
return bml_dump_from_user(cmd, volume, partno, (PAGEINFO_T *)arg);
}
case LLD_GET_DEV_INFO:
{
FSRLowFuncTbl *gpstFSRLFT;
FSRDevSpec stDevSpec;
LLD_DEVINFO_T info;
DEBUG(DL3, "IN LLD_GET_DEV_INFO : 0x%x\n", cmd);
if (!fsr_is_whole_dev(partno))
{
return -EINVAL;
}
gpstFSRLFT = fsr_get_low_tbl(volume);
if (gpstFSRLFT == NULL)
{
ERRPRINTK("fsr_get_low_tbl Fail");
return -EACCES;
}
ret = gpstFSRLFT->LLD_GetDevSpec(0, &stDevSpec, FSR_LLD_FLAG_NONE);
if (ret != FSR_LLD_SUCCESS)
{
ERRPRINTK("LLD_GetDevSpec Fail [0x%08x]", ret);
return -EIO;
}
info.msize_page = stDevSpec.nSctsPerPG << SECTOR_BITS;
info.pages_blk = stDevSpec.nPgsPerBlkForSLC;
info.msize_blk = stDevSpec.nPgsPerBlkForSLC * info.msize_page;
DEBUG(DL3, "OUT LLD_GET_DEV_INFO : 0x%x\n", cmd);
return copy_to_user((char *) arg, (char *) &info, sizeof (LLD_DEVINFO_T));
}
case LLD_BOOT_WRITE:
case LLD_BOOT_READ:
{
DEBUG(DL3, "IN LLD_BOOT_WRITE : 0x%x\n", cmd);
lld_operation_from_user(cmd, volume, (PAGEINFO_T *)arg);
DEBUG(DL3, "OUT LLD_BOOT_WRITE : 0x%x\n", cmd);
return 0;
}
case BML_SET_PART_TAB:
{
ret = bml_rw_parts_from_user(cmd, volume, (BML_PARTTAB_T *)arg);
if (ret)
{
ERRPRINTK("bml_rw_parts_from_user function error [ret=%d]", ret);
return -EINVAL;
}
ret = fsr_update_vol_spec(volume);
if (ret)
{
ERRPRINTK("fsr_update_vol_spec FAIL");
return -EINVAL;
}
return ret;
}
case BML_UNLOCK_ALL:
{
u32 len;
ret = FSR_BML_IOCtl(volume, FSR_BML_IOCTL_UNLOCK_WHOLEAREA,
NULL, 0, NULL, 0, &len);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_IOCTL_UNLOCK_WHOLEAREA Fail [0x%08x]", ret);
return -EIO;
}
return 0;
}
case BML_ERASE:
{
u32 end_unit, start_unit = 0;
DEBUG(DL3, "IN BML_ERASE : 0x%x\n", cmd);
if (fsr_is_whole_dev(partno))
{
end_unit = fsr_vol_unit_nr(vs);
}
else
{
start_unit = fsr_part_start(pi, partno);
end_unit = start_unit + fsr_part_units_nr(pi, partno);
}
while(start_unit < end_unit)
{
ret = FSR_BML_Erase(volume, &start_unit, 1,
FSR_BML_FLAG_NONE);
/* I/O error */
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR_BML_Erase Fail : %x, volume : %d, start unit : %d", ret, volume, start_unit);
return -EIO;
}
++start_unit;
}
DEBUG(DL3, "OUT BML_ERASE : 0x%x\n", cmd);
return 0;
}
case BML_GET_MAJOR_NUMBER:
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
u32 major_nr = MAJOR(bdev->bd_dev);
#else
u32 major_nr = MAJOR(inode->i_rdev);
#endif
DEBUG(DL3, "IN BML_GET_MAJOR_NUMBER : 0x%x\n", cmd);
ret = put_user(major_nr, (u32 *)arg);
/* memory error */
if (ret)
{
ERRPRINTK("copy_to_user error : %x\n", ret);
ret = -EFAULT;
break;
}
DEBUG(DL3, "OUT BML_GET_MAJOR_NUMBER : 0x%x\n", cmd);
return 0;
}
case BML_GET_MINOR_NUMBER:
{
u32 minor_nr = minor;
if (minor_nr > MAX_FLASH_PARTITIONS)
{
minor_nr = minor - (0x1 << PARTITION_BITS);
}
DEBUG(DL3, "IN BML_GET_MINOR_NUMBER : 0x%x\n", cmd);
ret = put_user(minor_nr, (u32 *)arg);
/* memory error */
if (ret)
{
ERRPRINTK("copy_to_user error : %x\n", ret);
ret = -EFAULT;
break;
}
DEBUG(DL3, "OUT BML_GET_MINOR_NUMBER : 0x%x\n", cmd);
return 0;
}
case BML_GET_PART_ATTR:
{
u32 attr = 0;
if (fsr_is_whole_dev(partno))
{
return -EACCES;
}
attr = fsr_part_attr(pi, partno);
ret = copy_to_user((char *) arg, (char *) &attr, sizeof (u32));
return ret;
}
case BML_SET_PART_ATTR:
{
u32 attr = 0, len;
FSRChangePA stChangePA;
if (fsr_is_whole_dev(partno))
{
return -EACCES;
}
ret = copy_from_user((char *) &attr, (char *) arg, sizeof (u32));
if (ret)
{
ERRPRINTK("ret = %x", ret);
return ret;
}
stChangePA.nPartID = fsr_part_id(pi, partno);
stChangePA.nNewAttr = attr;
ret = FSR_BML_IOCtl(volume, FSR_BML_IOCTL_CHANGE_PART_ATTR,
(UINT8 *) &stChangePA, sizeof(FSRChangePA), NULL, 0, &len);
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("ret = %x", ret);
return -EIO;
}
ret = fsr_update_vol_spec(volume);
if (ret)
{
ERRPRINTK("ret = %x", ret);
return -EIO;
}
return 0;
}
case BML_OTP_READ:
case BML_OTP_WRITE:
{
DEBUG(DL3, "IN OTP Read / Write function call : 0x%x\n", cmd);
ret = otp_operation_from_user(cmd, volume, (OTP_PAGEINFO_T *)arg);
if (ret && (ret != FSR_BML_SUCCESS))
{
ERRPRINTK("OTP Operation error. [ret : 0x%x\n", ret);
return -EIO;
}
DEBUG(DL3, "OUT OTP Read / Write function call : 0x%x\n", cmd);
return 0;
}
case BML_OTP_INFO:
{
OTP_PAGEINFO_T *kpage;
u32 len;
DEBUG(DL3, "IN OTP Info command : 0x%x\n", cmd);
/* OTP_PAGEINFO_T allocation */
kpage = (OTP_PAGEINFO_T *)kmalloc(sizeof(OTP_PAGEINFO_T), GFP_KERNEL);
if (kpage == NULL)
{
ERRPRINTK("kmalloc fail for OTP_PAGEINFO_T structure\n");
return -ENOMEM;
}
memset(kpage, 0x00, sizeof(OTP_PAGEINFO_T));
ret = copy_from_user(kpage, (OTP_PAGEINFO_T *)arg, sizeof(OTP_PAGEINFO_T));
if (ret)
{
ERRPRINTK(" copy from user error [ret = %x]", ret);
return ret;
}
ret = FSR_BML_IOCtl(volume, FSR_BML_IOCTL_GET_OTP_INFO,
NULL, 0, (UINT8*) &kpage->lock_flag, sizeof(kpage->lock_flag), &len);
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK(" FSR_BML_INCtl function error [ret = %x]", ret);
return ret;
}
DEBUG(DL1, "OTP Lock Info = %x\n", kpage->lock_flag);
ret = copy_to_user((OTP_PAGEINFO_T *)arg, kpage, sizeof(OTP_PAGEINFO_T));
if (ret)
{
ERRPRINTK(" copy to user error [ret = %x]", ret);
return ret;
}
kfree(kpage);
DEBUG(DL3, "OUT OTP Info command : 0x%x\n", cmd);
return 0;
}
case BML_OTP_LOCK:
{
OTP_PAGEINFO_T *kpage;
u32 OTP_Flags = 0;
u32 len;
DEBUG(DL3, "IN OTP Lock command : 0x%x\n", cmd);
/* OTP_PAGEINFO_T allocation */
kpage = (OTP_PAGEINFO_T *)kmalloc(sizeof(OTP_PAGEINFO_T), GFP_KERNEL);
if (kpage == NULL)
{
ERRPRINTK("kmalloc fail for OTP_PAGEINFO_T structure\n");
return -ENOMEM;
}
ret = copy_from_user((UINT8 *) kpage, (UINT8 *) arg, sizeof(OTP_PAGEINFO_T));
if (ret)
{
ERRPRINTK(" copy from user error [ret = %x]", ret);
return ret;
}
if (kpage->lock_flag == FSR_BML_OTP_LOCK_1ST_BLK)
{
/* first OTP Block flag */
DEBUG(DL0, "Fist OTP Block flag\n");
OTP_Flags |= FSR_BML_OTP_LOCK_1ST_BLK;
}
else if (kpage->lock_flag == FSR_BML_OTP_LOCK_OTP_BLK)
{
/* OTP Block flag */
DEBUG(DL0, "OTP Block flag\n");
OTP_Flags |= FSR_BML_OTP_LOCK_OTP_BLK;
}
else if (kpage->lock_flag == (FSR_BML_OTP_LOCK_OTP_BLK | FSR_BML_OTP_LOCK_1ST_BLK))
{
/* OTP Block flag */
DEBUG(DL0, "OTP Block and First OTP Block flag\n");
OTP_Flags |= FSR_BML_OTP_LOCK_1ST_BLK;
OTP_Flags |= FSR_BML_OTP_LOCK_OTP_BLK;
}
else
{
DEBUG(DL0, "None\n");
}
ret = FSR_BML_IOCtl(volume, FSR_BML_IOCTL_OTP_LOCK,
(UINT8 *) &OTP_Flags, sizeof(OTP_Flags), NULL, 0, &len);
if (ret != FSR_BML_SUCCESS)
{
ERRPRINTK("FSR: FSR_BML_IOCtl OTP Lock Error [ret : 0x%x]\n", ret);
return -EIO;