Messages in this thread Patch in this message | | | Subject | [PATCH 4/5] pktcdvd: Fix the logic in the pkt_writable_track function | From | Peter Osterlund <> | Date | 19 Feb 2006 16:58:20 +0100 |
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Fix the pkt_writable_track() function to make it work correctly for all types of CD/DVD discs.
Signed-off-by: Peter Osterlund <petero2@telia.com> ---
drivers/block/pktcdvd.c | 28 +++++++++++++++------------- 1 files changed, 15 insertions(+), 13 deletions(-)
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index dba5ce7..dec68d0 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -1500,28 +1500,30 @@ static int pkt_set_write_settings(struct /* * 1 -- we can write to this track, 0 -- we can't */ -static int pkt_writable_track(track_information *ti) +static int pkt_writable_track(struct pktcdvd_device *pd, track_information *ti) { - /* - * only good for CD-RW at the moment, not DVD-RW - */ + switch (pd->mmc3_profile) { + case 0x1a: /* DVD+RW */ + case 0x12: /* DVD-RAM */ + /* The track is always writable on DVD+RW/DVD-RAM */ + return 1; + default: + break; + } - /* - * FIXME: only for FP - */ - if (ti->fp == 0) - return 1; + if (!ti->packet || !ti->fp) + return 0; /* * "good" settings as per Mt Fuji. */ - if (ti->rt == 0 && ti->blank == 0 && ti->packet == 1) + if (ti->rt == 0 && ti->blank == 0) return 1; - if (ti->rt == 0 && ti->blank == 1 && ti->packet == 1) + if (ti->rt == 0 && ti->blank == 1) return 1; - if (ti->rt == 1 && ti->blank == 0 && ti->packet == 1) + if (ti->rt == 1 && ti->blank == 0) return 1; printk("pktcdvd: bad state %d-%d-%d\n", ti->rt, ti->blank, ti->packet); @@ -1606,7 +1608,7 @@ static int pkt_probe_settings(struct pkt return ret; } - if (!pkt_writable_track(&ti)) { + if (!pkt_writable_track(pd, &ti)) { printk("pktcdvd: can't write to this track\n"); return -ENXIO; } -- Peter Osterlund - petero2@telia.com http://web.telia.com/~u89404340 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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