diff options
author | John Snow <jsnow@redhat.com> | 2016-01-22 15:50:55 -0500 |
---|---|---|
committer | John Snow <jsnow@redhat.com> | 2016-01-25 14:35:23 -0500 |
commit | 21862658fdd1f3024cb477834a959588cfad036f (patch) | |
tree | 73ea785f937aeac7450935136046df451f9710ed /hw/block/fdc.c | |
parent | 9a97223399f58986d85dad457c8f69d484ed822b (diff) |
fdc: reduce number of pick_geometry arguments
Modify this function to operate directly on FDrive objects instead of
unpacking and passing all of those parameters manually. Reduces the
complexity in the caller and reduces the number of args to just one.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-3-git-send-email-jsnow@redhat.com
Diffstat (limited to 'hw/block/fdc.c')
-rw-r--r-- | hw/block/fdc.c | 50 |
1 files changed, 20 insertions, 30 deletions
diff --git a/hw/block/fdc.c b/hw/block/fdc.c index 71d931ef79..550521923c 100644 --- a/hw/block/fdc.c +++ b/hw/block/fdc.c @@ -242,11 +242,9 @@ static void fd_recalibrate(FDrive *drv) fd_seek(drv, 0, 0, 1, 1); } -static void pick_geometry(BlockBackend *blk, int *nb_heads, - int *max_track, int *last_sect, - FDriveType drive_in, FDriveType *drive, - FDriveRate *rate) +static void pick_geometry(FDrive *drv) { + BlockBackend *blk = drv->blk; const FDFormat *parse; uint64_t nb_sectors, size; int i, first_match, match; @@ -259,8 +257,8 @@ static void pick_geometry(BlockBackend *blk, int *nb_heads, if (parse->drive == FDRIVE_DRV_NONE) { break; } - if (drive_in == parse->drive || - drive_in == FDRIVE_DRV_NONE) { + if (drv->drive == parse->drive || + drv->drive == FDRIVE_DRV_NONE) { size = (parse->max_head + 1) * parse->max_track * parse->last_sect; if (nb_sectors == size) { @@ -280,41 +278,33 @@ static void pick_geometry(BlockBackend *blk, int *nb_heads, } parse = &fd_formats[match]; } - *nb_heads = parse->max_head + 1; - *max_track = parse->max_track; - *last_sect = parse->last_sect; - *drive = parse->drive; - *rate = parse->rate; + + if (parse->max_head == 0) { + drv->flags &= ~FDISK_DBL_SIDES; + } else { + drv->flags |= FDISK_DBL_SIDES; + } + drv->max_track = parse->max_track; + drv->last_sect = parse->last_sect; + drv->drive = parse->drive; + drv->media_rate = parse->rate; } /* Revalidate a disk drive after a disk change */ static void fd_revalidate(FDrive *drv) { - int nb_heads, max_track, last_sect, ro; - FDriveType drive; - FDriveRate rate; - FLOPPY_DPRINTF("revalidate\n"); if (drv->blk != NULL) { - ro = blk_is_read_only(drv->blk); - pick_geometry(drv->blk, &nb_heads, &max_track, - &last_sect, drv->drive, &drive, &rate); + drv->ro = blk_is_read_only(drv->blk); + pick_geometry(drv); 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, - max_track, last_sect, ro ? "ro" : "rw"); - } - if (nb_heads == 1) { - drv->flags &= ~FDISK_DBL_SIDES; - } else { - drv->flags |= FDISK_DBL_SIDES; + FLOPPY_DPRINTF("Floppy disk (%d h %d t %d s) %s\n", + (drv->flags & FDISK_DBL_SIDES) ? 2 : 1, + drv->max_track, drv->last_sect, + drv->ro ? "ro" : "rw"); } - drv->max_track = max_track; - drv->last_sect = last_sect; - drv->ro = ro; - drv->drive = drive; - drv->media_rate = rate; } else { FLOPPY_DPRINTF("No drive connected\n"); drv->last_sect = 0; |