1 files changed, 22 insertions, 6 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 55098eed3b21..a9eced25acce 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -133,12 +133,28 @@ struct ide_io_ports {
 /*
  * Timeouts for various operations:
  */
-#define WAIT_DRQ        (HZ/10)         /* 100msec - spec allows up to 20ms */
-#define WAIT_READY      (5*HZ)          /* 5sec - some laptops are very slow */
-#define WAIT_PIDENTIFY  (10*HZ) /* 10sec  - should be less than 3ms (?), if all ATAPI CD is closed at boot */
-#define WAIT_WORSTCASE  (30*HZ) /* 30sec  - worst case when spinning up */
-#define WAIT_CMD        (10*HZ) /* 10sec  - maximum wait for an IRQ to happen */
-#define WAIT_MIN_SLEEP  (2*HZ/100)      /* 20msec - minimum sleep time */
+enum {
+        /* spec allows up to 20ms */
+        WAIT_DRQ        = HZ / 10,      /* 100ms */
+        /* some laptops are very slow */
+        WAIT_READY      = 5 * HZ,       /* 5s */
+        /* should be less than 3ms (?), if all ATAPI CD is closed at boot */
+        WAIT_PIDENTIFY  = 10 * HZ,      /* 10s */
+        /* worst case when spinning up */
+        WAIT_WORSTCASE  = 30 * HZ,      /* 30s */
+        /* maximum wait for an IRQ to happen */
+        WAIT_CMD        = 10 * HZ,      /* 10s */
+        /* Some drives require a longer IRQ timeout. */
+        WAIT_FLOPPY_CMD = 50 * HZ,      /* 50s */
+        /*
+         * Some drives (for example, Seagate STT3401A Travan) require a very
+         * long timeout, because they don't return an interrupt or clear their
+         * BSY bit until after the command completes (even retension commands).
+         */
+        WAIT_TAPE_CMD   = 900 * HZ,     /* 900s */
+        /* minimum sleep time */
+        WAIT_MIN_SLEEP  = HZ / 50,      /* 20ms */
+};
 
 /*
  * Op codes for special requests to be handled by ide_special_rq().