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| author |   Steve French <sfrench@us.ibm.com> | 2008-08-26 16:56:05 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2008-08-26 16:56:05 +0000 |
| commit | 3dae49abef945c55c10fa7c479cfd8fd13af55db (patch) | |
| tree | 487c47c6d23cc28a259b913396aeaff0b792d32d /include/linux/libata.h | |
| parent | [CIFS] check version in spnego upcall response (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 (diff) | |
| download | wireguard-linux-3dae49abef945c55c10fa7c479cfd8fd13af55db.tar.xz wireguard-linux-3dae49abef945c55c10fa7c479cfd8fd13af55db.zip | |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/linux/libata.h')
| -rw-r--r-- | include/linux/libata.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 06b80337303b..225bfc5bd9ec 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -163,6 +163,7 @@ enum { ATA_DEV_NONE = 9, /* no device */ /* struct ata_link flags */ + ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */ ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */ ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */ ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */ @@ -646,6 +647,7 @@ struct ata_link { unsigned int flags; /* ATA_LFLAG_xxx */ + u32 saved_scontrol; /* SControl on probe */ unsigned int hw_sata_spd_limit; unsigned int sata_spd_limit; unsigned int sata_spd; /* current SATA PHY speed */ @@ -1427,6 +1429,28 @@ static inline unsigned long ata_deadline(unsigned long from_jiffies, return from_jiffies + msecs_to_jiffies(timeout_msecs); } +/* Don't open code these in drivers as there are traps. Firstly the range may + change in future hardware and specs, secondly 0xFF means 'no DMA' but is + > UDMA_0. Dyma ddreigiau */ + +static inline int ata_using_mwdma(struct ata_device *adev) +{ + if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4) + return 1; + return 0; +} + +static inline int ata_using_udma(struct ata_device *adev) +{ + if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7) + return 1; + return 0; +} + +static inline int ata_dma_enabled(struct ata_device *adev) +{ + return (adev->dma_mode == 0xFF ? 0 : 1); +} /************************************************************************** * PMP - drivers/ata/libata-pmp.c |