From ab863ec342cf148d02ed180b8ecf3a71a024e4be Mon Sep 17 00:00:00 2001 From: Peter Osterlund Date: Mon, 20 Feb 2006 18:28:04 -0800 Subject: [PATCH] pktcdvd: Fix the logic in the pkt_writable_track function Fix the pkt_writable_track() function to make it work correctly for all types of CD/DVD discs. Signed-off-by: Peter Osterlund Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/pktcdvd.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) (limited to 'drivers/block/pktcdvd.c') diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index fb08ae6de403..eb83197cc36c 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -1499,28 +1499,30 @@ static int pkt_set_write_settings(struct pktcdvd_device *pd) /* * 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); @@ -1605,7 +1607,7 @@ static int pkt_probe_settings(struct pktcdvd_device *pd) return ret; } - if (!pkt_writable_track(&ti)) { + if (!pkt_writable_track(pd, &ti)) { printk("pktcdvd: can't write to this track\n"); return -ENXIO; } -- cgit v1.2.2