Date: Tue, 18 May 1999 00:12:48 -0400 (EDT) From: Brian Feldman <green@unixhelp.org> To: sos@freebsd.dk Cc: current@freebsd.org Subject: ATA and afd (LS-120): got it WORKING! Message-ID: <Pine.BSF.4.10.9905180011380.31813-100000@janus.syracuse.net>
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Yes, I finally got it working! The explanation is in the patch, which I should
not need to explain again :)
Brian Feldman _ __ ___ ____ ___ ___ ___
green@unixhelp.org _ __ ___ | _ ) __| \
FreeBSD: The Power to Serve! _ __ | _ \ _ \ |) |
http://www.freebsd.org _ |___)___/___/
--- src/sys/dev/ata/atapi-fd.c.orig Mon May 17 20:28:16 1999
+++ src/sys/dev/ata/atapi-fd.c Mon May 17 20:42:37 1999
@@ -83,7 +83,7 @@
int32_t afdattach(struct atapi_softc *);
static int32_t afd_sense(struct afd_softc *);
-static void afd_describe(struct afd_softc *);
+static void afd_describe(struct afd_softc *, int8_t *, int8_t *);
static void afd_strategy(struct buf *);
static void afd_start(struct afd_softc *);
static void afd_done(struct atapi_request *);
@@ -96,6 +96,8 @@
afdattach(struct atapi_softc *atp)
{
struct afd_softc *fdp;
+ int8_t model_buf[40+1];
+ int8_t revision_buf[8+1];
if (afdnlun >= NUNIT) {
printf("afd: too many units\n");
@@ -106,18 +108,22 @@
printf("afd: out of memory\n");
return -1;
}
+
bzero(fdp, sizeof(struct afd_softc));
bufq_init(&fdp->buf_queue);
fdp->atp = atp;
fdp->lun = afdnlun;
fdp->flags = F_MEDIA_CHANGED;
+ bpack(atp->atapi_parm->model, model_buf, sizeof(model_buf));
+ bpack(atp->atapi_parm->revision, revision_buf, sizeof(revision_buf));
+ fdp->maxblks = strcmp(model_buf, "IOMEGA ZIP 100 ATAPI") ? 0 : 64;
if (afd_sense(fdp)) {
free(fdp, M_TEMP);
return -1;
}
- afd_describe(fdp);
+ afd_describe(fdp, model_buf, revision_buf);
afdtab[afdnlun++] = fdp;
devstat_add_entry(&fdp->stats, "afd", fdp->lun, DEV_BSIZE,
DEVSTAT_NO_ORDERED_TAGS,
@@ -166,15 +172,10 @@
}
static void
-afd_describe(struct afd_softc *fdp)
+afd_describe(struct afd_softc *fdp, int8_t *model, int8_t *revision)
{
- int8_t model_buf[40+1];
- int8_t revision_buf[8+1];
-
- bpack(fdp->atp->atapi_parm->model, model_buf, sizeof(model_buf));
- bpack(fdp->atp->atapi_parm->revision, revision_buf, sizeof(revision_buf));
printf("afd%d: <%s/%s> rewriteable drive at ata%d as %s\n",
- fdp->lun, model_buf, revision_buf,
+ fdp->lun, model, revision,
fdp->atp->controller->lun,
(fdp->atp->unit == ATA_MASTER) ? "master" : "slave ");
printf("afd%d: %luMB (%u sectors), %u cyls, %u heads, %u S/T, %u B/S\n",
@@ -320,9 +321,14 @@
lba = bp->b_blkno / (fdp->cap.sector_size / DEV_BSIZE);
count = (bp->b_bcount + (fdp->cap.sector_size - 1)) / fdp->cap.sector_size;
- /* Should only be needed for ZIP drives, but better safe than sorry */
- if (count > 64)
- count = 64;
+ /*
+ * This should only be needed for ZIP drives, since they lock up if a
+ * transfer of > 64 sectors is attempted. XXX TODO (for SOS): when
+ * this problem is to be worked around, multiple transfers will need
+ * to be queued!
+ */
+ if (fdp->maxblks && count > fdp->maxblks)
+ count = fdp->maxblks;
bzero(ccb, sizeof(ccb));
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