Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

[safe/jmp/linux-2.6] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index d4b8e5f..225bfc5 100644 (file)
--- 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 */
@@ -750,6 +752,7 @@ struct ata_port_operations {
        void (*set_piomode)(struct ata_port *ap, struct ata_device *dev);
        void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev);
        int  (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev);
+       unsigned int (*read_id)(struct ata_device *dev, struct ata_taskfile *tf, u16 *id);
 
        void (*dev_config)(struct ata_device *dev);
 
@@ -951,6 +954,8 @@ extern void ata_id_string(const u16 *id, unsigned char *s,
                          unsigned int ofs, unsigned int len);
 extern void ata_id_c_string(const u16 *id, unsigned char *s,
                            unsigned int ofs, unsigned int len);
+extern unsigned int ata_do_dev_read_id(struct ata_device *dev,
+                                       struct ata_taskfile *tf, u16 *id);
 extern void ata_qc_complete(struct ata_queued_cmd *qc);
 extern int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active);
 extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd,
@@ -1424,6 +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