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Revert "hw/block/fdc: Implement tray status"

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This reverts the changes that commit
2e1280e8ff applied to hw/block/fdc.c;
also, an additional case of drv->media_inserted use has crept in since,
which is replaced by a call to blk_is_inserted().

That commit changed tests/fdc-test.c, too, because after it, one less
TRAY_MOVED event would be emitted when executing 'change' on an empty
drive. However, now, no TRAY_MOVED events will be emitted at all, and
the tray_open status returned by query-block will always be false,
necessitating (different) changes to tests/fdc-test.c and iotest 118,
which is why this patch is not a pure revert of said commit.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 1454096953-31773-4-git-send-email-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Max Reitz 2016-01-29 20:49:12 +01:00
parent 12c7ec87a7
commit abb3e55b5b
3 changed files with 43 additions and 99 deletions
Download patch file Download diff file Expand all files Collapse all files

23
hw/block/fdc.c
View file

@ -173,7 +173,6 @@ typedef struct FDrive {
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 */
bool media_validated; /* Have we validated the media? */
} FDrive;
@ -249,7 +248,7 @@ 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->media_inserted) {
if (drv->blk != NULL && blk_is_inserted(drv->blk)) {
drv->media_changed = 0;
}
ret = 1;
@ -258,7 +257,7 @@ static int fd_seek(FDrive *drv, uint8_t head, uint8_t track, uint8_t sect,
drv->sect = sect;
}
if (!drv->media_inserted) {
if (drv->blk == NULL || !blk_is_inserted(drv->blk)) {
ret = 2;
}
@ -288,7 +287,9 @@ static int pick_geometry(FDrive *drv)
bool magic = drv->drive == FLOPPY_DRIVE_TYPE_AUTO;
/* We can only pick a geometry if we have a diskette. */
if (!drv->media_inserted || drv->drive == FLOPPY_DRIVE_TYPE_NONE) {
if (!drv->blk || !blk_is_inserted(drv->blk) ||
drv->drive == FLOPPY_DRIVE_TYPE_NONE)
{
return -1;
}
@ -390,7 +391,7 @@ static void fd_revalidate(FDrive *drv)
FLOPPY_DPRINTF("revalidate\n");
if (drv->blk != NULL) {
drv->ro = blk_is_read_only(drv->blk);
if (!drv->media_inserted) {
if (!blk_is_inserted(drv->blk)) {
FLOPPY_DPRINTF("No disk in drive\n");
drv->disk = FLOPPY_DRIVE_TYPE_NONE;
} else if (!drv->media_validated) {
@ -793,7 +794,7 @@ static bool fdrive_media_changed_needed(void *opaque)
{
FDrive *drive = opaque;
return (drive->media_inserted && drive->media_changed != 1);
return (drive->blk != NULL && drive->media_changed != 1);
}
static const VMStateDescription vmstate_fdrive_media_changed = {
@ -2285,22 +2286,13 @@ 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;
drive->media_validated = false;
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 */
@ -2327,7 +2319,6 @@ static void fdctrl_connect_drives(FDCtrl *fdctrl, Error **errp)
fd_init(drive);
if (drive->blk) {
blk_set_dev_ops(drive->blk, &fdctrl_block_ops, drive);
drive->media_inserted = blk_is_inserted(drive->blk);
pick_drive_type(drive);
}
fd_revalidate(drive);