PHAT12 Support

PHAT12 specific routines. More...

Collaboration diagram for PHAT12 Support:

Defines
#define	PHAT12CMASK   0x0FFF
Functions
int	Phat12GetClusterLink (NUTDEVICE *dev, uint32_t clust, uint32_t *link)
	Get link value of a specified cluster.
int	Phat12SetClusterLink (NUTDEVICE *dev, uint32_t clust, uint32_t link)
	Set link value of a specified cluster.
int	Phat12ReleaseChain (NUTDEVICE *dev, uint32_t first)
	Release a cluster chain.

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Detailed Description

PHAT12 specific routines.

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Define Documentation

#define PHAT12CMASK   0x0FFF

Referenced by AllocFirstCluster(), Phat12GetClusterLink(), Phat12ReleaseChain(), Phat12SetClusterLink(), PhatFilePosSet(), PhatFileRead(), and PhatFileWrite().

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Function Documentation

int Phat12GetClusterLink	(	NUTDEVICE *	dev,
		uint32_t	clust,
		uint32_t *	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.

References _NUTDEVICE::dev_dcb, PHAT12CMASK, PHATEOC, PhatSectorLoad(), _PHATSECTBUF::sect_data, _PHATVOL::vol_buf, and _PHATVOL::vol_sectsz.

Referenced by Phat12ReleaseChain(), PhatFilePosSet(), PhatFileRead(), and PhatFileWrite().

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int Phat12SetClusterLink	(	NUTDEVICE *	dev,
		uint32_t	clust,
		uint32_t	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.

References _NUTDEVICE::dev_dcb, PHAT12CMASK, PhatSectorLoad(), _PHATSECTBUF::sect_data, _PHATSECTBUF::sect_dirty, _PHATVOL::vol_buf, _PHATVOL::vol_sectsz, and _PHATVOL::vol_tab_sect.

Referenced by AllocFirstCluster(), and Phat12ReleaseChain().

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int Phat12ReleaseChain	(	NUTDEVICE *	dev,
		uint32_t	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.

References _NUTDEVICE::dev_dcb, PHAT12CMASK, Phat12GetClusterLink(), Phat12SetClusterLink(), PHATEOC, and _PHATVOL::vol_numfree.

Referenced by PhatDirReleaseChain().

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