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Allow compilation when _FS_READONLY == 1 in src/fatfs/ffconf.h

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This commit is contained in:
Martin Guy 2011-03-20 02:57:53 +01:00
parent 68be85c008
commit 9d5d30ca45
1 changed files with 16 additions and 0 deletions
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16
src/mmcfs.c
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@ -58,6 +58,14 @@ static int mmcfs_open_r( struct _reent *r, const char *path, int flags, int mode
flags &= ~O_BINARY;
#endif
#if _FS_READONLY
if ((flags & O_ACCMODE) != O_RDONLY)
{
r->_errno = EROFS;
return -1;
}
mmc_mode = FA_OPEN_EXISTING & FA_READ;
#else
// Translate fcntl.h mode to FatFs mode (by jcwren@jcwren.com)
if (((flags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC)) && (flags & (O_RDWR | O_WRONLY)))
mmc_mode = FA_CREATE_ALWAYS;
@ -84,6 +92,7 @@ static int mmcfs_open_r( struct _reent *r, const char *path, int flags, int mode
r->_errno = EINVAL;
return -1;
}
#endif // _FS_READONLY
// Open the file for reading
if (f_open(&mmc_fileObject, mmc_pathBuf, mmc_mode) != FR_OK)
@ -112,6 +121,12 @@ static int mmcfs_close_r( struct _reent *r, int fd )
static _ssize_t mmcfs_write_r( struct _reent *r, int fd, const void* ptr, size_t len )
{
#if _FS_READONLY
{
r->_errno = EIO;
return -1;
}
#else
UINT bytesWritten;
if (f_write(mmcfs_fd_table + fd, ptr, len, &bytesWritten) != FR_OK)
@ -121,6 +136,7 @@ static _ssize_t mmcfs_write_r( struct _reent *r, int fd, const void* ptr, size_t
}
return (_ssize_t) bytesWritten;
#endif // _FS_READONLY
}
static _ssize_t mmcfs_read_r( struct _reent *r, int fd, void* ptr, size_t len )