1 files changed, 39 insertions, 2 deletions

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index e9d042dba0e0..6adc5b4a4406 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -149,7 +149,10 @@ static void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk,
         memcpy(rq->cmd, pc->c, 12);
         if (drive->media == ide_tape)
                 rq->cmd[13] = REQ_IDETAPE_PC1;
-        ide_do_drive_cmd(drive, rq);
+
+        drive->hwif->rq = NULL;
+
+        elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
 }
 
 /*
@@ -297,6 +300,21 @@ int ide_cd_get_xferlen(struct request *rq)
 }
 EXPORT_SYMBOL_GPL(ide_cd_get_xferlen);
 
+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->tp_ops->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);
+
 /*
  * This is the usual interrupt handler which will be called during a packet
  * command.  We will transfer some of the data (as requested by the drive)
@@ -456,6 +474,25 @@ next_irq:
         return ide_started;
 }
 
+static void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount)
+{
+        ide_hwif_t *hwif = drive->hwif;
+        ide_task_t task;
+        u8 dma = drive->dma;
+
+        memset(&task, 0, sizeof(task));
+        task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
+                        IDE_TFLAG_OUT_FEATURE | tf_flags;
+        task.tf.feature = dma;          /* Use PIO/DMA */
+        task.tf.lbam    = bcount & 0xff;
+        task.tf.lbah    = (bcount >> 8) & 0xff;
+
+        ide_tf_dump(drive->name, &task.tf);
+        hwif->tp_ops->set_irq(hwif, 1);
+        SELECT_MASK(drive, 0);
+        hwif->tp_ops->tf_load(drive, &task);
+}
+
 static u8 ide_read_ireason(ide_drive_t *drive)
 {
         ide_task_t task;
@@ -629,7 +666,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
                                                        : WAIT_TAPE_CMD;
         }
 
-        ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma);
+        ide_pktcmd_tf_load(drive, tf_flags, bcount);
 
         /* Issue the packet command */
         if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {