Offset LVI past CIV when starting DAC/ADC in order to prevent
stalled start.
---
Here is the (working) patch I'm using against a later 2.4. This makes
sound work fine with Enemy Territory.
drivers/sound/i810_audio.c | 10 ++++++++++
1 files changed, 10 insertions(+)
--- linux-test/drivers/sound/i810_audio.c.orig 2005-01-14 17:21:20.000000000
-0500
+++ linux-test/drivers/sound/i810_audio.c 2005-01-17 13:11:31.000000000
-0500
@@ -1081,10 +1081,20 @@ static void __i810_update_lvi(struct i81
if (count < fragsize)
return;
+ /* if we are currently stopped, then our CIV is actually set to our
+ * *last* sg segment and we are ready to wrap to the next. However,
+ * if we set our LVI to the last sg segment, then it won't wrap to
+ * the next sg segment, it won't even get a start. So, instead, when
+ * we are stopped, we set both the LVI value and also we increment
+ * the CIV value to the next sg segment to be played so that when
+ * we call start, things will operate properly
+ */
if (!dmabuf->enable && dmabuf->ready) {
if (!(dmabuf->trigger & trigger))
return;
+ CIV_TO_LVI(state->card, port, 1);
+
start(state);
while (!(I810_IOREADB(state->card, port + OFF_CR) & ((1<<4) |
(1<<2))))
;
-
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