ide: add ide_read_device() helper

Add ide_read_device() helper and convert do_probe() to use it
instead of ->INB.
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 92eb4380
......@@ -410,6 +410,18 @@ static int ide_busy_sleep(ide_hwif_t *hwif)
return 1;
}
static u8 ide_read_device(ide_drive_t *drive)
{
ide_task_t task;
memset(&task, 0, sizeof(task));
task.tf_flags = IDE_TFLAG_IN_DEVICE;
drive->hwif->tf_read(drive, &task);
return task.tf.device;
}
/**
* do_probe - probe an IDE device
* @drive: drive to probe
......@@ -434,7 +446,6 @@ static int ide_busy_sleep(ide_hwif_t *hwif)
static int do_probe (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = HWIF(drive);
struct ide_io_ports *io_ports = &hwif->io_ports;
int rc;
u8 stat;
......@@ -455,8 +466,8 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
msleep(50);
SELECT_DRIVE(drive);
msleep(50);
if (hwif->INB(io_ports->device_addr) != drive->select.all &&
!drive->present) {
if (ide_read_device(drive) != drive->select.all && !drive->present) {
if (drive->select.b.unit != 0) {
/* exit with drive0 selected */
SELECT_DRIVE(&hwif->drives[0]);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment