fix a bug with cat >/dev/{dsp,dspW,audio} hanging
This commit is contained in:
parent
6523748af1
commit
a78723c1c1
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=51095
@ -268,7 +268,7 @@ chn_write(pcm_channel *c, struct uio *buf)
|
||||
return EBUSY;
|
||||
}
|
||||
c->flags |= CHN_F_WRITING;
|
||||
while (buf->uio_resid >= DMA_ALIGN_THRESHOLD) {
|
||||
while (buf->uio_resid > 0) {
|
||||
s = spltty();
|
||||
chn_dmaupdate(c);
|
||||
splx(s);
|
||||
@ -284,6 +284,7 @@ chn_write(pcm_channel *c, struct uio *buf)
|
||||
/* ensure we always have a whole number of samples */
|
||||
l = min(b->fl, b->bufsize - b->fp) & DMA_ALIGN_MASK;
|
||||
w = c->feeder->feed(c->feeder, b->buf + b->fp, l, buf);
|
||||
if (w == 0) panic("no feed");
|
||||
s = spltty();
|
||||
b->rl += w;
|
||||
b->fl -= w;
|
||||
|
@ -268,7 +268,7 @@ chn_write(pcm_channel *c, struct uio *buf)
|
||||
return EBUSY;
|
||||
}
|
||||
c->flags |= CHN_F_WRITING;
|
||||
while (buf->uio_resid >= DMA_ALIGN_THRESHOLD) {
|
||||
while (buf->uio_resid > 0) {
|
||||
s = spltty();
|
||||
chn_dmaupdate(c);
|
||||
splx(s);
|
||||
@ -284,6 +284,7 @@ chn_write(pcm_channel *c, struct uio *buf)
|
||||
/* ensure we always have a whole number of samples */
|
||||
l = min(b->fl, b->bufsize - b->fp) & DMA_ALIGN_MASK;
|
||||
w = c->feeder->feed(c->feeder, b->buf + b->fp, l, buf);
|
||||
if (w == 0) panic("no feed");
|
||||
s = spltty();
|
||||
b->rl += w;
|
||||
b->fl -= w;
|
||||
|
Loading…
Reference in New Issue
Block a user