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kludge to fix the end-of-sample repeating bug. i don't know why it happens;

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none of my hw does it, but this should fix it for now.

Tested by:	wpaul
This commit is contained in:
Cameron Grant 2000-01-18 18:59:03 +00:00
parent c66f4b97e9
commit f2410ff244
1 changed files with 9 additions and 5 deletions
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14
sys/dev/sound/pcm/channel.c
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@ -357,6 +357,7 @@ chn_wrintr(pcm_channel *c)
* goes to sleep by itself.
*/
while (chn_wrfeed(c) > 0);
chn_clearbuf(c, b, b->fl);
chn_dmawakeup(c);
if (c->flags & CHN_F_MAPPED)
start = c->flags & CHN_F_TRIGGERED;
@ -963,17 +964,20 @@ chn_abort(pcm_channel *c)
int
chn_flush(pcm_channel *c)
{
int ret, count = 50;
int ret, count = 50, s;
snd_dbuf *b = &c->buffer;
DEB(printf("chn_flush c->flags 0x%08x\n", c->flags));
c->flags |= CHN_F_CLOSING;
if (c->direction == PCMDIR_REC) chn_abort(c);
if (c->direction == PCMDIR_REC)
chn_abort(c);
else if (b->dl) {
while (!b->underflow && (count-- > 0)) {
while ((b->rl > 0) && !b->underflow && (count-- > 0)) {
/* still pending output data. */
ret = tsleep((caddr_t)b, PRIBIO | PCATCH, "pcmflu", hz/10);
DEB(chn_dmaupdate(c));
ret = tsleep((caddr_t)b, PRIBIO | PCATCH, "pcmflu", hz / 10);
s = spltty();
chn_dmaupdate(c);
splx(s);
DEB(printf("chn_flush: now rl = %d, fl = %d\n", b->rl, b->fl));
if (ret == EINTR || ret == ERESTART) {
DEB(printf("chn_flush: tsleep returns %d\n", ret));