PHAT32 Support
[PHAT File System]

Collaboration diagram for PHAT32 Support:


Detailed Description

PHAT32 specific routines.


Defines

#define PHAT32CMASK   0x0FFFFFFF

Functions

int Phat32GetClusterLink (NUTDEVICE *dev, u_long clust, u_long *link)
 Get link value of a specified cluster.
int Phat32SetClusterLink (NUTDEVICE *dev, u_long clust, u_long link)
 Set link value of a specified cluster.
int Phat32ReleaseChain (NUTDEVICE *dev, u_long first)
 Release a cluster chain.


Define Documentation

#define PHAT32CMASK   0x0FFFFFFF

Definition at line 55 of file phat32.h.

Referenced by AllocFirstCluster(), Phat32GetClusterLink(), Phat32ReleaseChain(), Phat32SetClusterLink(), PhatFilePosSet(), PhatFileRead(), and PhatFileWrite().


Function Documentation

int Phat32GetClusterLink ( NUTDEVICE dev,
u_long  clust,
u_long link 
)

Get link value of a specified cluster.

Parameters:
dev Specifies the file system device.
clust Get the link of this cluster.
link Pointer to a variable which will receive the link.
Returns:
0 on success or -1 on failure.

Definition at line 100 of file phat32.c.

References _NUTDEVICE::dev_dcb, PHAT32CMASK, PHATEOC, PhatSectorLoad(), _PHATSECTBUF::sect_data, and _PHATVOL::vol_buf.

Referenced by Phat32ReleaseChain(), PhatFilePosSet(), PhatFileRead(), and PhatFileWrite().

int Phat32SetClusterLink ( NUTDEVICE dev,
u_long  clust,
u_long  link 
)

Set link value of a specified cluster.

Parameters:
dev Specifies the file system device.
clust This cluster will be linked.
link Link to this cluster.
Returns:
0 on success or -1 on failure.

Definition at line 135 of file phat32.c.

References _NUTDEVICE::dev_dcb, PHAT32CMASK, PhatSectorLoad(), and _PHATVOL::vol_tab_sect.

Referenced by AllocFirstCluster(), and Phat32ReleaseChain().

int Phat32ReleaseChain ( NUTDEVICE dev,
u_long  first 
)

Release a cluster chain.

Parameters:
dev Specifies the file system device.
first First cluster of the chain to release.
Returns:
0 on success or -1 on failure.

Definition at line 167 of file phat32.c.

References _NUTDEVICE::dev_dcb, PHAT32CMASK, Phat32GetClusterLink(), Phat32SetClusterLink(), PHATEOC, and _PHATVOL::vol_numfree.

Referenced by PhatDirReleaseChain().


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