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ide: add struct ide_tp_ops (take 2)

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* 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>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-07-23 19:55:56 +02:00
parent d6276b5f5c
commit 374e042c3e
23 changed files with 358 additions and 225 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/ide/ide-taskfile.c
View File

@@ -64,6 +64,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
ide_hwif_t *hwif = HWIF(drive);
struct ide_taskfile *tf = &task->tf;
ide_handler_t *handler = NULL;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
const struct ide_dma_ops *dma_ops = hwif->dma_ops;
if (task->data_phase == TASKFILE_MULTI_IN ||
@@ -80,15 +81,15 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
ide_tf_dump(drive->name, tf);
hwif->set_irq(hwif, 1);
tp_ops->set_irq(hwif, 1);
SELECT_MASK(drive, 0);
hwif->tf_load(drive, task);
tp_ops->tf_load(drive, task);
}
switch (task->data_phase) {
case TASKFILE_MULTI_OUT:
case TASKFILE_OUT:
hwif->exec_command(hwif, tf->command);
tp_ops->exec_command(hwif, tf->command);
ndelay(400); /* FIXME */
return pre_task_out_intr(drive, task->rq);
case TASKFILE_MULTI_IN:
@@ -125,7 +126,7 @@ EXPORT_SYMBOL_GPL(do_rw_taskfile);
static ide_startstop_t set_multmode_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
u8 stat = hwif->read_status(hwif);
u8 stat = hwif->tp_ops->read_status(hwif);
if (OK_STAT(stat, READY_STAT, BAD_STAT))
drive->mult_count = drive->mult_req;
@@ -146,8 +147,12 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive)
int retries = 5;
u8 stat;
while (((stat = hwif->read_status(hwif)) & BUSY_STAT) && retries--)
while (1) {
stat = hwif->tp_ops->read_status(hwif);
if ((stat & BUSY_STAT) == 0 || retries-- == 0)
break;
udelay(10);
};
if (OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_stopped;
@@ -165,7 +170,7 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive)
static ide_startstop_t recal_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
u8 stat = hwif->read_status(hwif);
u8 stat = hwif->tp_ops->read_status(hwif);
if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "recal_intr", stat);
@@ -182,7 +187,7 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
u8 stat;
local_irq_enable_in_hardirq();
stat = hwif->read_status(hwif);
stat = hwif->tp_ops->read_status(hwif);
if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "task_no_data_intr", stat);
@@ -205,7 +210,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
* take up to 6 ms on some ATAPI devices, so we will wait max 10 ms.
*/
for (retries = 0; retries < 1000; retries++) {
stat = hwif->read_status(hwif);
stat = hwif->tp_ops->read_status(hwif);
if (stat & BUSY_STAT)
udelay(10);
@@ -260,9 +265,9 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
/* do the actual data transfer */
if (write)
hwif->output_data(drive, rq, buf, SECTOR_SIZE);
hwif->tp_ops->output_data(drive, rq, buf, SECTOR_SIZE);
else
hwif->input_data(drive, rq, buf, SECTOR_SIZE);
hwif->tp_ops->input_data(drive, rq, buf, SECTOR_SIZE);
kunmap_atomic(buf, KM_BIO_SRC_IRQ);
#ifdef CONFIG_HIGHMEM
@@ -389,7 +394,7 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = hwif->hwgroup->rq;
u8 stat = hwif->read_status(hwif);
u8 stat = hwif->tp_ops->read_status(hwif);
/* Error? */
if (stat & ERR_STAT)
@@ -423,7 +428,7 @@ static ide_startstop_t task_out_intr (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = HWGROUP(drive)->rq;
u8 stat = hwif->read_status(hwif);
u8 stat = hwif->tp_ops->read_status(hwif);
if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
return task_error(drive, rq, __func__, stat);