static int
afd_open(struct disk *dp)
{
device_t dev = dp->d_drv1;
struct ata_device *atadev = device_get_softc(dev);
struct afd_softc *fdp = device_get_ivars(dev);
if (!fdp)
return ENXIO;
if (!device_is_attached(dev))
return EBUSY;
afd_test_ready(dev);
afd_prevent_allow(dev, 1);
if (afd_sense(dev))
device_printf(dev, "sense media type failed\n");
atadev->flags &= ~ATA_D_MEDIA_CHANGED;
if (!fdp->mediasize)
return ENXIO;
fdp->disk->d_sectorsize = fdp->sectorsize;
fdp->disk->d_mediasize = fdp->mediasize;
fdp->disk->d_fwsectors = fdp->sectors;
fdp->disk->d_fwheads = fdp->heads;
return 0;
}
static int
afd_close(struct disk *dp)
{
device_t dev = dp->d_drv1;
afd_prevent_allow(dev, 0);
return 0;
}
static int
afd_close(struct dev_close_args *ap)
{
device_t dev = ap->a_head.a_dev->si_drv1;
struct afd_softc *fdp = device_get_ivars(dev);
if (count_dev(fdp->cdev) == 1)
afd_prevent_allow(dev, 0);
return 0;
}
static int
afd_open(struct dev_open_args *ap)
{
device_t dev = ap->a_head.a_dev->si_drv1;
struct ata_device *atadev = device_get_softc(dev);
struct afd_softc *fdp = device_get_ivars(dev);
struct disk_info info;
if (!fdp)
return ENXIO;
if (!device_is_attached(dev))
return EBUSY;
afd_test_ready(dev);
afd_prevent_allow(dev, 1);
if (afd_sense(dev))
device_printf(dev, "sense media type failed\n");
atadev->flags &= ~ATA_D_MEDIA_CHANGED;
if (!fdp->mediasize)
return ENXIO;
bzero(&info, sizeof(info));
info.d_media_blksize = fdp->sectorsize; /* mandatory */
info.d_media_size = fdp->mediasize; /* (this is in bytes) */
info.d_secpertrack = fdp->sectors; /* optional */
info.d_nheads = fdp->heads;
info.d_ncylinders =
((fdp->mediasize/fdp->sectorsize)/fdp->sectors)/fdp->heads;
info.d_secpercyl = fdp->sectors * fdp->heads;
disk_setdiskinfo(&fdp->disk, &info);
return 0;
}
