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the unit of read/write offset and buffer size is changed to the block size in block device driver read/write interface.

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@793 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com
2010-07-14 23:31:16 +00:00
parent e94adf07ca
commit b5763568c9
5 changed files with 95 additions and 12 deletions
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components/dfs/filesystems/elmfat/dfs_elm.c
+40 -4
View File
@@ -41,6 +41,10 @@ static int elm_result_to_dfs(FRESULT result)
status = -DFS_STATUS_EROFS;
break;
case FR_MKFS_ABORTED:
status = -DFS_STATUS_EINVAL;
break;
default:
status = -1;
break;
@@ -534,8 +538,8 @@ DRESULT disk_read (BYTE drv, BYTE *buff, DWORD sector, BYTE count)
rt_size_t result;
rt_device_t device = disk[drv];
result = rt_device_read(device, sector * 512, buff, count * 512);
if (result == count * 512)
result = rt_device_read(device, sector, buff, count);
if (result == count)
{
return RES_OK;
}
@@ -549,8 +553,8 @@ DRESULT disk_write (BYTE drv, const BYTE *buff, DWORD sector, BYTE count)
rt_size_t result;
rt_device_t device = disk[drv];
result = rt_device_write(device, sector * 512, buff, count * 512);
if (result == count * 512)
result = rt_device_write(device, sector, buff, count);
if (result == count)
{
return RES_OK;
}
@@ -561,6 +565,38 @@ DRESULT disk_write (BYTE drv, const BYTE *buff, DWORD sector, BYTE count)
/* Miscellaneous Functions */
DRESULT disk_ioctl (BYTE drv, BYTE ctrl, void *buff)
{
rt_device_t device = disk[drv];
if (device == RT_NULL) return RES_ERROR;
if (ctrl == GET_SECTOR_COUNT)
{
struct rt_device_blk_geometry geometry;
rt_memset(&geometry, 0, sizeof(geometry));
rt_device_control(device, RT_DEVICE_CTRL_BLK_GETGEOME, &geometry);
*(DWORD*)buff = geometry.sector_count;
}
else if (ctrl == GET_SECTOR_SIZE)
{
struct rt_device_blk_geometry geometry;
rt_memset(&geometry, 0, sizeof(geometry));
rt_device_control(device, RT_DEVICE_CTRL_BLK_GETGEOME, &geometry);
*(DWORD*)buff = geometry.bytes_per_sector;
}
else if (ctrl == GET_BLOCK_SIZE) /* Get erase block size in unit of sectors (DWORD) */
{
struct rt_device_blk_geometry geometry;
rt_memset(&geometry, 0, sizeof(geometry));
rt_device_control(device, RT_DEVICE_CTRL_BLK_GETGEOME, &geometry);
*(DWORD*)buff = geometry.block_size/geometry.bytes_per_sector;
}
return RES_OK;
}
components/dfs/filesystems/elmfat/ff.c
+2 -2
View File
@@ -2772,7 +2772,7 @@ FRESULT f_forward (
/* Create File System on the Drive */
/*-----------------------------------------------------------------------*/
#define N_ROOTDIR 512 /* Multiple of 32 and <= 2048 */
#define N_FATS 1 /* 1 or 2 */
#define N_FATS 2 /* 1 or 2 */ // my edit
#define MAX_SECTOR 131072000UL /* Maximum partition size */
#define MIN_SECTOR 2000UL /* Minimum partition size */
@@ -2780,7 +2780,7 @@ FRESULT f_forward (
FRESULT f_mkfs (
BYTE drv, /* Logical drive number */
BYTE partition, /* Partitioning rule 0:FDISK, 1:SFD */
WORD allocsize /* Allocation unit size [bytes] */
DWORD allocsize /* Allocation unit size [bytes] */
)
{
static const DWORD sstbl[] = { 2048000, 1024000, 512000, 256000, 128000, 64000, 32000, 16000, 8000, 4000, 0 };
components/dfs/filesystems/elmfat/ff.h
+1 -1
View File
@@ -434,7 +434,7 @@ FRESULT f_chmod (const XCHAR*, BYTE, BYTE); /* Change attriburte of the file/d
FRESULT f_utime (const XCHAR*, const FILINFO*); /* Change timestamp of the file/dir */
FRESULT f_rename (const XCHAR*, const XCHAR*); /* Rename/Move a file or directory */
FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */
FRESULT f_mkfs (BYTE, BYTE, WORD); /* Create a file system on the drive */
FRESULT f_mkfs (BYTE, BYTE, DWORD); /* Create a file system on the drive */
FRESULT f_chdir (const XCHAR*); /* Change current directory */
FRESULT f_chdrive (BYTE); /* Change current drive */
components/dfs/filesystems/elmfat/ffconf.h
+1 -1
View File
@@ -39,7 +39,7 @@
/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
#define _USE_MKFS 0 /* 0 or 1 */
#define _USE_MKFS 1 /* 0 or 1 */
/* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */