Initial mount integration
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@222 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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@ -37,7 +37,10 @@ o USB
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o Libraries
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o File system
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- Add some concept like mount points to handle mounted "real" filesystems.
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- Add disk usage stats, stat(), sync(), unlink(), mkdir(), chmod(), rename(),
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etc.
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- FAT32: long file names
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o Console Output
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@ -129,7 +129,7 @@ static ssize_t up_read(FAR struct inode *inode, unsigned char *buffer,
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memcpy(buffer,
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&src[start_sector*LOGICAL_SECTOR_SIZE],
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nsectors*LOGICAL_SECTOR_SIZE);
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return OK;
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return nsectors;
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}
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}
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return -EINVAL;
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@ -155,7 +155,7 @@ static ssize_t up_write(FAR struct inode *inode, const unsigned char *buffer,
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memcpy(&dest[start_sector*LOGICAL_SECTOR_SIZE],
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buffer,
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nsectors*LOGICAL_SECTOR_SIZE);
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return OK;
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return nsectors;
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}
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}
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return -EINVAL;
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@ -13,6 +13,10 @@ examples/nsh
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shell-like application. With some additional development, NSH will
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someday be a great NuttX application debugger.
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examples/mount
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This contains a simple test of filesystem mountpoints.
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examples/null
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This is the do nothing application. It is only used for bringing
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@ -480,8 +480,6 @@ static int fat_checkbootrecord(struct fat_mountpt_s *fs)
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if (MBR_GETSIGNATURE(fs->fs_buffer) != 0xaa55 ||
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MBR_GETROOTENTCNT(fs->fs_buffer) != 0 ||
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MBR_GETFATSZ16(fs->fs_buffer) != 0 ||
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MBR_GETTOTSEC16(fs->fs_buffer) != 0 ||
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MBR_GETBYTESPERSEC(fs->fs_buffer) != fs->fs_hwsectorsize)
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{
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return -ENODEV;
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@ -495,7 +493,12 @@ static int fat_checkbootrecord(struct fat_mountpt_s *fs)
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* Determine the number of sectors in a FAT.
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*/
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fs->fs_fatsize = MBR_GETFATSZ32(fs->fs_buffer);
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fs->fs_fatsize = MBR_GETFATSZ16(fs->fs_buffer); /* Should be zero */
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if (!fs->fs_fatsize)
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{
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fs->fs_fatsize = MBR_GETFATSZ32(fs->fs_buffer);
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}
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if (fs->fs_fatsize >= fs->fs_hwnsectors)
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{
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return -ENODEV;
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@ -503,7 +506,12 @@ static int fat_checkbootrecord(struct fat_mountpt_s *fs)
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/* Get the total number of sectors on the volume. */
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fs->fs_fattotsec = MBR_GETTOTSEC32(fs->fs_buffer);
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fs->fs_fattotsec = MBR_GETTOTSEC16(fs->fs_buffer); /* Should be zero */
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if (!fs->fs_fattotsec)
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{
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fs->fs_fattotsec = MBR_GETTOTSEC32(fs->fs_buffer);
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}
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if (fs->fs_fattotsec > fs->fs_hwnsectors)
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{
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return -ENODEV;
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