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Initial mount integration

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@222 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2007-05-13 21:47:36 +00:00
parent 01b3f1c982
commit a27c0911f4
4 changed files with 22 additions and 7 deletions
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TODO
+4 -1
View File
@@ -37,7 +37,10 @@ o USB
o Libraries
o File system
- Add some concept like mount points to handle mounted "real" filesystems.
- Add disk usage stats, stat(), sync(), unlink(), mkdir(), chmod(), rename(),
etc.
- FAT32: long file names
o Console Output
arch/sim/src/up_blockdevice.c
+2 -2
View File
@@ -129,7 +129,7 @@ static ssize_t up_read(FAR struct inode *inode, unsigned char *buffer,
memcpy(buffer,
&src[start_sector*LOGICAL_SECTOR_SIZE],
nsectors*LOGICAL_SECTOR_SIZE);
return OK;
return nsectors;
}
}
return -EINVAL;
@@ -155,7 +155,7 @@ static ssize_t up_write(FAR struct inode *inode, const unsigned char *buffer,
memcpy(&dest[start_sector*LOGICAL_SECTOR_SIZE],
buffer,
nsectors*LOGICAL_SECTOR_SIZE);
return OK;
return nsectors;
}
}
return -EINVAL;
examples/README.txt
+4
View File
@@ -13,6 +13,10 @@ examples/nsh
shell-like application. With some additional development, NSH will
someday be a great NuttX application debugger.
examples/mount
This contains a simple test of filesystem mountpoints.
examples/null
This is the do nothing application. It is only used for bringing
fs/fs_fat32.c
+12 -4
View File
@@ -480,8 +480,6 @@ static int fat_checkbootrecord(struct fat_mountpt_s *fs)
if (MBR_GETSIGNATURE(fs->fs_buffer) != 0xaa55 ||
MBR_GETROOTENTCNT(fs->fs_buffer) != 0 ||
MBR_GETFATSZ16(fs->fs_buffer) != 0 ||
MBR_GETTOTSEC16(fs->fs_buffer) != 0 ||
MBR_GETBYTESPERSEC(fs->fs_buffer) != fs->fs_hwsectorsize)
{
return -ENODEV;
@@ -495,7 +493,12 @@ static int fat_checkbootrecord(struct fat_mountpt_s *fs)
* Determine the number of sectors in a FAT.
*/
fs->fs_fatsize = MBR_GETFATSZ32(fs->fs_buffer);
fs->fs_fatsize = MBR_GETFATSZ16(fs->fs_buffer); /* Should be zero */
if (!fs->fs_fatsize)
{
fs->fs_fatsize = MBR_GETFATSZ32(fs->fs_buffer);
}
if (fs->fs_fatsize >= fs->fs_hwnsectors)
{
return -ENODEV;
@@ -503,7 +506,12 @@ static int fat_checkbootrecord(struct fat_mountpt_s *fs)
/* Get the total number of sectors on the volume. */
fs->fs_fattotsec = MBR_GETTOTSEC32(fs->fs_buffer);
fs->fs_fattotsec = MBR_GETTOTSEC16(fs->fs_buffer); /* Should be zero */
if (!fs->fs_fattotsec)
{
fs->fs_fattotsec = MBR_GETTOTSEC32(fs->fs_buffer);
}
if (fs->fs_fattotsec > fs->fs_hwnsectors)
{
return -ENODEV;