ide: add ide_do_test_unit_ready() helper

[linux-2.6-omap-h63xx.git] / drivers / ide / ide-atapi.c

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 58411591edf390a9da31a859e15be37e9c37df56..608c5bade92939476d15a1c1f053584fde419e95 100644 (file)
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -162,6 +162,17 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk,
 }
 EXPORT_SYMBOL_GPL(ide_queue_pc_tail);
 
+int ide_do_test_unit_ready(ide_drive_t *drive, struct gendisk *disk)
+{
+       struct ide_atapi_pc pc;
+
+       ide_init_pc(&pc);
+       pc.c[0] = TEST_UNIT_READY;
+
+       return ide_queue_pc_tail(drive, disk, &pc);
+}
+EXPORT_SYMBOL_GPL(ide_do_test_unit_ready);
+
 int ide_do_start_stop(ide_drive_t *drive, struct gendisk *disk, int start)
 {
        struct ide_atapi_pc pc;