From: wei_ni@ali.com.tw
To: alan@lxorguk.ukuu.org.uk
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] update for ALi5455 Audio Driver for 2.4.22
Date: Wed, 12 Nov 2003 14:25:38 +0800 [thread overview]
Message-ID: <OF22FE45E8.1FF6EC85-ON48256DDC.0022D831@LocalDomain> (raw)
Dear all,
We resolve the bugs in ALi5455 audio driver.
Best regards,
Ni wei
http://www.ali.com.tw
Information about update:
Updated files: ali5455.c
Location: drivers/sound
Driver Version: 0.02ac
Kernel Version: 2.4.22
patchfile for ali5455.c:
---------------------------------------------------------------------------------
--- ali5455.c.orig 2003-11-11 19:15:13.000000000 +0800
+++ ali5455.c 2003-11-12 09:52:34.000000000 +0800
@@ -1254,17 +1254,16 @@
{
struct dmabuf *dmabuf = &state->dmabuf;
int free;
- ali_update_ptr(state);
- // catch underruns during playback
+
if (dmabuf->count < 0) {
dmabuf->count = 0;
dmabuf->swptr = dmabuf->hwptr;
}
- free = dmabuf->dmasize - dmabuf->count;
- free -= (dmabuf->hwptr % dmabuf->fragsize);
- if (free < 0)
- return (0);
- return (free);
+ free = dmabuf->dmasize - dmabuf->swptr;
+ if ((dmabuf->count + free) > dmabuf->dmasize){
+ free = dmabuf->dmasize - dmabuf->count;
+ }
+ return free;
}
static inline int ali_get_available_read_data(struct
@@ -1860,6 +1859,7 @@
NOTHING we can do to prevent it. */
/* FIXME - do timeout handling here !! */
+ schedule_timeout(tmo >= 2 ? tmo : 2);
if (signal_pending(current)) {
if (!ret)
---------------------------------------------------------------------------------
Ni Wei
2003-11-12
reply other threads:[~2003-11-12 6:21 UTC|newest]
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