}
if (!bdrv_key_required(bs)) {
- bs->media_changed = 1;
bdrv_dev_change_media_cb(bs);
}
bdrv_close(bs->file);
}
- bs->media_changed = 1;
bdrv_dev_change_media_cb(bs);
}
}
} else if (!bs->valid_key) {
bs->valid_key = 1;
/* call the change callback now, we skipped it on open */
- bs->media_changed = 1;
bdrv_dev_change_media_cb(bs);
}
return ret;
}
/**
- * Return TRUE if the media changed since the last call to this
- * function. It is currently only used for floppy disks
+ * Return whether the media changed since the last call to this
+ * function, or -ENOTSUP if we don't know. Most drivers don't know.
*/
int bdrv_media_changed(BlockDriverState *bs)
{
BlockDriver *drv = bs->drv;
- int ret;
- if (!drv || !drv->bdrv_media_changed)
- ret = -ENOTSUP;
- else
- ret = drv->bdrv_media_changed(bs);
- if (ret == -ENOTSUP)
- ret = bs->media_changed;
- bs->media_changed = 0;
- return ret;
+ if (drv && drv->bdrv_media_changed) {
+ return drv->bdrv_media_changed(bs);
+ }
+ return -ENOTSUP;
}
/**
NULL,
};
-static void fdrive_media_changed_pre_save(void *opaque)
-{
- FDrive *drive = opaque;
-
- drive->media_changed = drive->bs->media_changed;
-}
-
-static int fdrive_media_changed_post_load(void *opaque, int version_id)
-{
- FDrive *drive = opaque;
-
- if (drive->bs != NULL) {
- drive->bs->media_changed = drive->media_changed;
- }
-
- /* User ejected the floppy when drive->bs == NULL */
- return 0;
-}
-
static bool fdrive_media_changed_needed(void *opaque)
{
FDrive *drive = opaque;
- return (drive->bs != NULL && drive->bs->media_changed != 1);
+ return (drive->bs != NULL && drive->media_changed != 1);
}
static const VMStateDescription vmstate_fdrive_media_changed = {
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
- .pre_save = fdrive_media_changed_pre_save,
- .post_load = fdrive_media_changed_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT8(media_changed, FDrive),
VMSTATE_END_OF_LIST()
if (!drv->bs)
return 0;
ret = bdrv_media_changed(drv->bs);
+ if (ret < 0) {
+ ret = drv->media_changed;
+ }
+ drv->media_changed = 0;
if (ret) {
fd_revalidate(drv);
}
fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
}
+static void fdctrl_change_cb(void *opaque)
+{
+ FDrive *drive = opaque;
+
+ drive->media_changed = 1;
+}
+
+static const BlockDevOps fdctrl_block_ops = {
+ .change_media_cb = fdctrl_change_cb,
+};
+
/* Init functions */
static int fdctrl_connect_drives(FDCtrl *fdctrl)
{
fd_init(drive);
fd_revalidate(drive);
if (drive->bs) {
+ drive->media_changed = 1;
bdrv_set_removable(drive->bs, 1);
+ bdrv_set_dev_ops(drive->bs, &fdctrl_block_ops, drive);
}
}
return 0;