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Commit b6782728 authored by Alan Cox's avatar Alan Cox Committed by Jeff Garzik
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[PATCH] libata: Add the useful macros/constants needed for merging PATA stuff 



HPA presence/enabled
HPA commands

Also add ata_id_is_cfa() as that is needed to detect and handle CF cards
which currently we reject.

Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 806a6e7a

include/linux/ata.h

+6 −0
Original line number Diff line number Diff line
@@ -146,6 +146,8 @@ enum { 
 	ATA_CMD_STANDBYNOW1	= 0xE0,

 	ATA_CMD_IDLEIMMEDIATE	= 0xE1,

	ATA_CMD_INIT_DEV_PARAMS	= 0x91,

	ATA_CMD_READ_NATIVE_MAX	= 0xF8,

	ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,



	/* SETFEATURES stuff */

	SETFEATURES_XFER	= 0x03,
@@ -246,18 +248,22 @@ struct ata_taskfile { 
};



#define ata_id_is_ata(id)	(((id)[0] & (1 << 15)) == 0)

#define ata_id_is_cfa(id)	((id)[0] == 0x848A)

#define ata_id_is_sata(id)	((id)[93] == 0)

#define ata_id_rahead_enabled(id) ((id)[85] & (1 << 6))

#define ata_id_wcache_enabled(id) ((id)[85] & (1 << 5))

#define ata_id_hpa_enabled(id)	((id)[85] & (1 << 10))

#define ata_id_has_fua(id)	((id)[84] & (1 << 6))

#define ata_id_has_flush(id)	((id)[83] & (1 << 12))

#define ata_id_has_flush_ext(id) ((id)[83] & (1 << 13))

#define ata_id_has_lba48(id)	((id)[83] & (1 << 10))

#define ata_id_has_hpa(id)	((id)[82] & (1 << 10))

#define ata_id_has_wcache(id)	((id)[82] & (1 << 5))

#define ata_id_has_pm(id)	((id)[82] & (1 << 3))

#define ata_id_has_lba(id)	((id)[49] & (1 << 9))

#define ata_id_has_dma(id)	((id)[49] & (1 << 8))

#define ata_id_removeable(id)	((id)[0] & (1 << 7))

#define ata_id_has_dword_io(id)	((id)[50] & (1 << 0))

#define ata_id_u32(id,n)	\

	(((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))

#define ata_id_u64(id,n)	\