From 62b7e5e09bcb854ff05e6ee1aa161f8283dc36ee Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 22 Oct 2010 17:15:47 +0200 Subject: ALSA: hda - Add workarounds for CT-IBG controllers Creative IBG controllers require the playback stream-tags to be started from 1, instead of capture+1. Otherwise the stream stalls. Reported-by: Wai Yew CHAY Cc: Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'sound/pci/hda/hda_intel.c') diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index ee445bc6e81..21aa9b0e28f 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1652,7 +1652,7 @@ static int azx_pcm_prepare(struct snd_pcm_substream *substream) struct azx_dev *azx_dev = get_azx_dev(substream); struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream]; struct snd_pcm_runtime *runtime = substream->runtime; - unsigned int bufsize, period_bytes, format_val; + unsigned int bufsize, period_bytes, format_val, stream_tag; int err; azx_stream_reset(chip, azx_dev); @@ -1694,7 +1694,12 @@ static int azx_pcm_prepare(struct snd_pcm_substream *substream) else azx_dev->fifo_size = 0; - return snd_hda_codec_prepare(apcm->codec, hinfo, azx_dev->stream_tag, + stream_tag = azx_dev->stream_tag; + /* CA-IBG chips need the playback stream starting from 1 */ + if (chip->driver_type == AZX_DRIVER_CTX && + stream_tag > chip->capture_streams) + stream_tag -= chip->capture_streams; + return snd_hda_codec_prepare(apcm->codec, hinfo, stream_tag, azx_dev->format_val, substream); } -- cgit v1.2.3-70-g09d2