ide: add ide_read_bcount_and_ireason() helper

Add ide_read_bcount_and_ireason() helper and use it instead of ->INB
in {cdrom_newpc,ide_pc}_intr().

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

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 113db8744736..cb11c7861a50 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -405,6 +405,21 @@ u8 ide_read_error(ide_drive_t *drive)
 }
 EXPORT_SYMBOL_GPL(ide_read_error);
 
+void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason)
+{
+        ide_task_t task;
+
+        memset(&task, 0, sizeof(task));
+        task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM |
+                        IDE_TFLAG_IN_NSECT;
+
+        drive->hwif->tf_read(drive, &task);
+
+        *bcount = (task.tf.lbah << 8) | task.tf.lbam;
+        *ireason = task.tf.nsect & 3;
+}
+EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason);
+
 void ide_fix_driveid (struct hd_driveid *id)
 {
 #ifndef __LITTLE_ENDIAN