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Make an ATAPI CD device appear as /dev/acdN and the individual

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tracks as /dev/acdNtY.

This solves the problems with having to deal with howmany and which
devices are open.

For hysterical reasons ONLY, make a link to both the acdNa & acdNc devices.
This commit is contained in:
Søren Schmidt 2001-10-19 13:34:48 +00:00
parent c764884325
commit 7ebc82d6ec
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=85161
2 changed files with 8 additions and 14 deletions
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20
sys/dev/ata/atapi-cd.c
View File

@ -208,8 +208,7 @@ acddetach(struct atapi_softc *atp)
while ((bp = bioq_first(&cdp->driver[subdev]->queue))) {
biofinish(bp, NULL, ENXIO);
}
destroy_dev(cdp->driver[subdev]->dev1);
destroy_dev(cdp->driver[subdev]->dev2);
destroy_dev(cdp->driver[subdev]->dev);
while ((entry = TAILQ_FIRST(&cdp->driver[subdev]->dev_list))) {
destroy_dev(entry->dev);
TAILQ_REMOVE(&cdp->driver[subdev]->dev_list, entry, chain);
@ -226,8 +225,7 @@ acddetach(struct atapi_softc *atp)
while ((bp = bioq_first(&cdp->queue))) {
biofinish(bp, NULL, ENXIO);
}
destroy_dev(cdp->dev1);
destroy_dev(cdp->dev2);
destroy_dev(cdp->dev);
while ((entry = TAILQ_FIRST(&cdp->dev_list))) {
destroy_dev(entry->dev);
TAILQ_REMOVE(&cdp->dev_list, entry, chain);
@ -272,17 +270,13 @@ acd_make_dev(struct acd_softc *cdp)
dev_t dev;
dev = make_dev(&acd_cdevsw, dkmakeminor(cdp->lun, 0, 0),
UID_ROOT, GID_OPERATOR, 0644, "acd%da", cdp->lun);
UID_ROOT, GID_OPERATOR, 0644, "acd%d", cdp->lun);
make_dev_alias(dev, "acd%da", cdp->lun);
make_dev_alias(dev, "acd%dc", cdp->lun);
dev->si_drv1 = cdp;
dev->si_iosize_max = 252 * DEV_BSIZE;
dev->si_bsize_phys = 2048; /* XXX SOS */
cdp->dev1 = dev;
dev = make_dev(&acd_cdevsw, dkmakeminor(cdp->lun, 0, RAW_PART),
UID_ROOT, GID_OPERATOR, 0644, "acd%dc", cdp->lun);
dev->si_drv1 = cdp;
dev->si_iosize_max = 252 * DEV_BSIZE;
dev->si_bsize_phys = 2048; /* XXX SOS */
cdp->dev2 = dev;
cdp->dev = dev;
cdp->atp->flags |= ATAPI_F_MEDIA_CHANGED;
}
@ -1310,7 +1304,7 @@ acd_read_toc(struct acd_softc *cdp)
entry = malloc(sizeof(struct acd_devlist), M_ACD, M_NOWAIT | M_ZERO);
entry->dev = make_dev(&acd_cdevsw, (cdp->lun << 3) | (track << 16),
0, 0, 0644, name, NULL);
entry->dev->si_drv1 = cdp->dev1->si_drv1;
entry->dev->si_drv1 = cdp->dev->si_drv1;
TAILQ_INSERT_TAIL(&cdp->dev_list, entry, chain);
}

2
sys/dev/ata/atapi-cd.h
View File

@ -335,5 +335,5 @@ struct acd_softc {
int block_size; /* blocksize currently used */
struct disklabel disklabel; /* fake disk label */
struct devstat *stats; /* devstat entry */
dev_t dev1, dev2; /* device place holders */
dev_t dev; /* device place holders */
};