[PATCH] PATCH: libata. Add ->data_xfer method

We need to pass the device in order to do per device checks such as
32bit I/O enables. With the changes to include dev->ap we now don't have
to add parameters however just clean them up. Also add data_xfer methods
to the existing drivers except ata_piix (which is in the other block of
patches). If you reject the piix one just add a data_xfer to it...

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index c51502c047..25a6bf1815 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -525,6 +525,8 @@ struct ata_port_operations {
         void (*bmdma_setup) (struct ata_queued_cmd *qc);
         void (*bmdma_start) (struct ata_queued_cmd *qc);
 
+        void (*data_xfer) (struct ata_device *, unsigned char *, unsigned int, int);
+
         void (*qc_prep) (struct ata_queued_cmd *qc);
         unsigned int (*qc_issue) (struct ata_queued_cmd *qc);
 
@@ -646,6 +648,10 @@ extern int ata_port_start (struct ata_port *ap);
 extern void ata_port_stop (struct ata_port *ap);
 extern void ata_host_stop (struct ata_host_set *host_set);
 extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
+extern void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
+                               unsigned int buflen, int write_data);
+extern void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
+                              unsigned int buflen, int write_data);
 extern void ata_qc_prep(struct ata_queued_cmd *qc);
 extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
 extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);