Blackfin arch: enable a choice to provide 4M DMA memory

[linux-2.6-omap-h63xx.git] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index d1dfe872ee308f854a4b7dd2113e124c4813d1ab..0f17643e0a6e06c6942ceba10017b99c12674027 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1039,6 +1039,7 @@ extern void ata_eh_thaw_port(struct ata_port *ap);
 
 extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
 extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
+extern void ata_eh_analyze_ncq_error(struct ata_link *link);
 
 extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
                      ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
@@ -1381,6 +1382,18 @@ static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)
        return *(struct ata_port **)&host->hostdata[0];
 }
 
+static inline int ata_check_ready(u8 status)
+{
+       if (!(status & ATA_BUSY))
+               return 1;
+
+       /* 0xff indicates either no device or device not ready */
+       if (status == 0xff)
+               return -ENODEV;
+
+       return 0;
+}
+
 
 /**************************************************************************
  * PMP - drivers/ata/libata-pmp.c