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ide: use ->tf_read in ide_read_error()

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* Add IDE_TFLAG_IN_FEATURE taskfile flag for reading Feature
  register and handle it in ->tf_read.

* Convert ide_read_error() to use ->tf_read instead of ->INB,
  then uninline and export it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-07-23 19:55:53 +02:00
parent 40f095f013
commit 92eb43800a
5 changed files with 24 additions and 7 deletions
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15
drivers/ide/ide-iops.c
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@@ -241,6 +241,8 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
/* be sure we're looking at the low order bits */
tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
tf->feature = tf_inb(io_ports->feature_addr);
if (task->tf_flags & IDE_TFLAG_IN_NSECT)
tf->nsect = tf_inb(io_ports->nsect_addr);
if (task->tf_flags & IDE_TFLAG_IN_LBAL)
@@ -390,6 +392,19 @@ void default_hwif_transport(ide_hwif_t *hwif)
hwif->output_data = ata_output_data;
}
u8 ide_read_error(ide_drive_t *drive)
{
ide_task_t task;
memset(&task, 0, sizeof(task));
task.tf_flags = IDE_TFLAG_IN_FEATURE;
drive->hwif->tf_read(drive, &task);
return task.tf.error;
}
EXPORT_SYMBOL_GPL(ide_read_error);
void ide_fix_driveid (struct hd_driveid *id)
{
#ifndef __LITTLE_ENDIAN