ide: add struct ide_tp_ops (take 2)

* Add struct ide_tp_ops for transport methods.

* Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info
  and ide_hwif_t.

* Set the default hwif->tp_ops in ide_init_port_data().

* Set host driver specific hwif->tp_ops in ide_init_port().

* Export ide_exec_command(), ide_read_status(), ide_read_altstatus(),
  ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}()
  and ata_{in,out}put_data().

* Convert host drivers and core code to use struct ide_tp_ops.

* Remove no longer needed default_hwif_transport().

* Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops.

While at it:

* Use struct ide_port_info in falconide.c and q40ide.c.

* Rename ata_{in,out}put_data() to ide_{in,out}put_data().

v2:

* Fix missing convertion in ns87415.c.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 2a86af91f64a..659db3f7ae08 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -142,7 +142,8 @@ static void ide_scsi_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
                                 unsigned int bcount, int write)
 {
         ide_hwif_t *hwif = drive->hwif;
-        xfer_func_t *xf = write ? hwif->output_data : hwif->input_data;
+        const struct ide_tp_ops *tp_ops = hwif->tp_ops;
+        xfer_func_t *xf = write ? tp_ops->output_data : tp_ops->input_data;
         char *buf;
         int count;
 
@@ -246,9 +247,9 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
 {
         ide_hwif_t *hwif = drive->hwif;
 
-        if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT))
+        if (hwif->tp_ops->read_status(hwif) & (BUSY_STAT | DRQ_STAT))
                 /* force an abort */
-                hwif->exec_command(hwif, WIN_IDLEIMMEDIATE);
+                hwif->tp_ops->exec_command(hwif, WIN_IDLEIMMEDIATE);
 
         rq->errors++;