system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-20 07:14:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove unused code.

Browse source
This commit is contained in:
Hidetoshi Shimokawa 2003-04-21 16:41:20 +00:00
parent b67eb8b080
commit e863fbcdb0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=113802
1 changed files with 35 additions and 73 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

108
sys/dev/firewire/fwdev.c
View file

@ -282,8 +282,6 @@ fw_write (dev_t dev, struct uio *uio, int ioflag)
int sub = DEV2DMACH(dev);
int s, slept = 0;
struct fw_pkt *fp;
struct fw_xfer *xfer;
struct fw_xferq *xferq;
struct firewire_comm *fc;
struct fw_xferq *it;
@ -293,82 +291,46 @@ fw_write (dev_t dev, struct uio *uio, int ioflag)
sc = devclass_get_softc(firewire_devclass, unit);
fc = sc->fc;
it = sc->fc->it[sub];
xferq = NULL;
/* Discard unsent buffered stream packet, when sending Asyrequrst */
if(xferq != NULL && it->stproc != NULL){
isoloop:
if (it->stproc == NULL) {
it->stproc = STAILQ_FIRST(&it->stfree);
if (it->stproc != NULL) {
s = splfw();
STAILQ_REMOVE_HEAD(&it->stfree, link);
splx(s);
it->queued = 0;
} else if (slept == 0) {
slept = 1;
err = sc->fc->itx_enable(sc->fc, sub);
if (err)
return err;
err = tsleep(it, FWPRI, "fw_write", hz);
if (err)
return err;
goto isoloop;
} else {
err = EIO;
return err;
}
}
fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
it->stproc->poffset + it->queued);
err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
err = uiomove((caddr_t)fp->mode.stream.payload,
fp->mode.stream.len, uio);
it->queued ++;
if (it->queued >= it->bnpacket) {
s = splfw();
STAILQ_INSERT_TAIL(&it->stfree, it->stproc, link);
STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
splx(s);
it->stproc = NULL;
err = sc->fc->itx_enable(sc->fc, sub);
}
if (xferq == NULL) {
isoloop:
if (it->stproc == NULL) {
it->stproc = STAILQ_FIRST(&it->stfree);
if (it->stproc != NULL) {
s = splfw();
STAILQ_REMOVE_HEAD(&it->stfree, link);
splx(s);
it->queued = 0;
} else if (slept == 0) {
slept = 1;
err = sc->fc->itx_enable(sc->fc, sub);
if (err)
return err;
err = tsleep(it, FWPRI,
"fw_write", hz);
if (err)
return err;
goto isoloop;
} else {
err = EIO;
return err;
}
}
fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
it->stproc->poffset + it->queued);
err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
err = uiomove((caddr_t)fp->mode.stream.payload,
fp->mode.stream.len, uio);
it->queued ++;
if (it->queued >= it->bnpacket) {
s = splfw();
STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
splx(s);
it->stproc = NULL;
err = sc->fc->itx_enable(sc->fc, sub);
}
if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
slept = 0;
goto isoloop;
}
return err;
if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
slept = 0;
goto isoloop;
}
if (xferq != NULL) {
xfer = fw_xfer_alloc_buf(M_FWXFER, uio->uio_resid, 12);
if(xfer == NULL){
err = ENOMEM;
return err;
}
xfer->dst = fp->mode.hdr.dst;
xfer->send.len = uio->uio_resid;
xfer->spd = 0;/* XXX: how to setup it */
xfer->act.hand = fw_asy_callback;
err = uiomove(xfer->send.buf, uio->uio_resid, uio);
if(err){
fw_xfer_free( xfer);
return err;
}
fw_asyreq(fc, -1, xfer);
err = tsleep(xfer, FWPRI, "fw_write", hz);
if(xfer->resp == EBUSY)
return EBUSY;
fw_xfer_free( xfer);
return err;
}
return EINVAL;
return err;
}
/*