[Qemu-devel] [PATCH 03/50] hw/block/fdc: Implement tray status

[Max Reitz <mreitz@redhat.com>]

The tray of an FDD is open iff there is no medium inserted (there are
only two states for an FDD: "medium inserted" or "no medium inserted").

This results in the tray being reported as open if qemu has been started
with the default floppy drive, which breaks some tests. Fix them.

Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 hw/block/fdc.c             | 20 +++++++++++++---
 tests/fdc-test.c           |  4 +---
 tests/qemu-iotests/067.out | 60 +++++++---------------------------------------
 tests/qemu-iotests/071.out |  2 --
 tests/qemu-iotests/081.out |  1 -
 tests/qemu-iotests/087.out |  5 ----
 6 files changed, 26 insertions(+), 66 deletions(-)

diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index 2bf87c9..0c5a6b4 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -192,6 +192,8 @@ typedef struct FDrive {
     uint8_t ro;               /* Is read-only           */
     uint8_t media_changed;    /* Is media changed       */
     uint8_t media_rate;       /* Data rate of medium    */
+
+    bool media_inserted;      /* Is there a medium in the tray */
 } FDrive;
 
 static void fd_init(FDrive *drv)
@@ -261,7 +263,7 @@ static int fd_seek(FDrive *drv, uint8_t head, uint8_t track, uint8_t sect,
 #endif
         drv->head = head;
         if (drv->track != track) {
-            if (drv->blk != NULL && blk_is_inserted(drv->blk)) {
+            if (drv->media_inserted) {
                 drv->media_changed = 0;
             }
             ret = 1;
@@ -270,7 +272,7 @@ static int fd_seek(FDrive *drv, uint8_t head, uint8_t track, uint8_t sect,
         drv->sect = sect;
     }
 
-    if (drv->blk == NULL || !blk_is_inserted(drv->blk)) {
+    if (!drv->media_inserted) {
         ret = 2;
     }
 
@@ -296,7 +298,7 @@ static void fd_revalidate(FDrive *drv)
         ro = blk_is_read_only(drv->blk);
         pick_geometry(drv->blk, &nb_heads, &max_track,
                       &last_sect, drv->drive, &drive, &rate);
-        if (!blk_is_inserted(drv->blk)) {
+        if (!drv->media_inserted) {
             FLOPPY_DPRINTF("No disk in drive\n");
         } else {
             FLOPPY_DPRINTF("Floppy disk (%d h %d t %d s) %s\n", nb_heads,
@@ -2062,12 +2064,21 @@ static void fdctrl_change_cb(void *opaque, bool load)
 {
     FDrive *drive = opaque;
 
+    drive->media_inserted = load && drive->blk && blk_is_inserted(drive->blk);
+
     drive->media_changed = 1;
     fd_revalidate(drive);
 }
 
+static bool fdctrl_is_tray_open(void *opaque)
+{
+    FDrive *drive = opaque;
+    return !drive->media_inserted;
+}
+
 static const BlockDevOps fdctrl_block_ops = {
     .change_media_cb = fdctrl_change_cb,
+    .is_tray_open = fdctrl_is_tray_open,
 };
 
 /* Init functions */
@@ -2095,6 +2106,9 @@ static void fdctrl_connect_drives(FDCtrl *fdctrl, Error **errp)
         fdctrl_change_cb(drive, 0);
         if (drive->blk) {
             blk_set_dev_ops(drive->blk, &fdctrl_block_ops, drive);
+            if (blk_is_inserted(drive->blk)) {
+                drive->media_inserted = true;
+            }
         }
     }
 }
diff --git a/tests/fdc-test.c b/tests/fdc-test.c
index 3c6c83c..f287c10 100644
--- a/tests/fdc-test.c
+++ b/tests/fdc-test.c
@@ -293,9 +293,7 @@ static void test_media_insert(void)
     qmp_discard_response("{'execute':'change', 'arguments':{"
                          " 'device':'floppy0', 'target': %s, 'arg': 'raw' }}",
                          test_image);
-    qmp_discard_response(""); /* ignore event
-                                 (FIXME open -> open transition?!) */
-    qmp_discard_response(""); /* ignore event */
+    qmp_discard_response(""); /* ignore event (open -> close) */
 
     dir = inb(FLOPPY_BASE + reg_dir);
     assert_bit_set(dir, DSKCHG);
diff --git a/tests/qemu-iotests/067.out b/tests/qemu-iotests/067.out
index 00b3eae..42bae32 100644
--- a/tests/qemu-iotests/067.out
+++ b/tests/qemu-iotests/067.out
@@ -69,7 +69,7 @@ Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk -device virti
             "device": "floppy0",
             "locked": false,
             "removable": true,
-            "tray_open": false,
+            "tray_open": true,
             "type": "unknown"
         },
         {
@@ -131,7 +131,7 @@ Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk -device virti
             "device": "floppy0",
             "locked": false,
             "removable": true,
-            "tray_open": false,
+            "tray_open": true,
             "type": "unknown"
         },
         {
@@ -165,17 +165,6 @@ Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk -device virti
         "tray-open": true
     }
 }
-{
-    "timestamp": {
-        "seconds":  TIMESTAMP,
-        "microseconds":  TIMESTAMP
-    },
-    "event": "DEVICE_TRAY_MOVED",
-    "data": {
-        "device": "floppy0",
-        "tray-open": true
-    }
-}
 
 
 === -drive/device_add and device_del ===
@@ -246,7 +235,7 @@ Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk
             "device": "floppy0",
             "locked": false,
             "removable": true,
-            "tray_open": false,
+            "tray_open": true,
             "type": "unknown"
         },
         {
@@ -312,7 +301,7 @@ Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk
             "device": "floppy0",
             "locked": false,
             "removable": true,
-            "tray_open": false,
+            "tray_open": true,
             "type": "unknown"
         },
         {
@@ -346,17 +335,6 @@ Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk
         "tray-open": true
     }
 }
-{
-    "timestamp": {
-        "seconds":  TIMESTAMP,
-        "microseconds":  TIMESTAMP
-    },
-    "event": "DEVICE_TRAY_MOVED",
-    "data": {
-        "device": "floppy0",
-        "tray-open": true
-    }
-}
 
 
 === drive_add/device_add and device_del ===
@@ -386,7 +364,7 @@ Testing:
             "device": "floppy0",
             "locked": false,
             "removable": true,
-            "tray_open": false,
+            "tray_open": true,
             "type": "unknown"
         },
         {
@@ -496,7 +474,7 @@ Testing:
             "device": "floppy0",
             "locked": false,
             "removable": true,
-            "tray_open": false,
+            "tray_open": true,
             "type": "unknown"
         },
         {
@@ -530,17 +508,6 @@ Testing:
         "tray-open": true
     }
 }
-{
-    "timestamp": {
-        "seconds":  TIMESTAMP,
-        "microseconds":  TIMESTAMP
-    },
-    "event": "DEVICE_TRAY_MOVED",
-    "data": {
-        "device": "floppy0",
-        "tray-open": true
-    }
-}
 
 
 === blockdev_add/device_add and device_del ===
@@ -571,7 +538,7 @@ Testing:
             "device": "floppy0",
             "locked": false,
             "removable": true,
-            "tray_open": false,
+            "tray_open": true,
             "type": "unknown"
         },
         {
@@ -681,7 +648,7 @@ Testing:
             "device": "floppy0",
             "locked": false,
             "removable": true,
-            "tray_open": false,
+            "tray_open": true,
             "type": "unknown"
         },
         {
@@ -760,16 +727,5 @@ Testing:
         "tray-open": true
     }
 }
-{
-    "timestamp": {
-        "seconds":  TIMESTAMP,
-        "microseconds":  TIMESTAMP
-    },
-    "event": "DEVICE_TRAY_MOVED",
-    "data": {
-        "device": "floppy0",
-        "tray-open": true
-    }
-}
 
 *** done
diff --git a/tests/qemu-iotests/071.out b/tests/qemu-iotests/071.out
index c8ecfaf..904ce15 100644
--- a/tests/qemu-iotests/071.out
+++ b/tests/qemu-iotests/071.out
@@ -52,7 +52,6 @@ read failed: Input/output error
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
 QEMU_PROG: Failed to flush the L2 table cache: Input/output error
 QEMU_PROG: Failed to flush the refcount block cache: Input/output error
 
@@ -95,7 +94,6 @@ read failed: Input/output error
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
 QEMU_PROG: Failed to flush the L2 table cache: Input/output error
 QEMU_PROG: Failed to flush the refcount block cache: Input/output error
 
diff --git a/tests/qemu-iotests/081.out b/tests/qemu-iotests/081.out
index 2375916..b1e4909 100644
--- a/tests/qemu-iotests/081.out
+++ b/tests/qemu-iotests/081.out
@@ -38,7 +38,6 @@ read 10485760/10485760 bytes at offset 0
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
 
 
 == using quorum rewrite corrupted mode ==
diff --git a/tests/qemu-iotests/087.out b/tests/qemu-iotests/087.out
index 681ef93..033cc3b 100644
--- a/tests/qemu-iotests/087.out
+++ b/tests/qemu-iotests/087.out
@@ -15,7 +15,6 @@ QMP_VERSION
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
 
 
 === aio=native without O_DIRECT ===
@@ -27,7 +26,6 @@ QMP_VERSION
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
 
 
 === Encrypted image ===
@@ -40,7 +38,6 @@ QMP_VERSION
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
 
 Testing:
 QMP_VERSION
@@ -49,7 +46,6 @@ QMP_VERSION
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
 
 
 === Missing driver ===
@@ -62,6 +58,5 @@ QMP_VERSION
 {"return": {}}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
 {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
 
 *** done
-- 
2.1.0