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[ALSA] es1968 - Fix stuttering capture 

Looks like the buffer size for the stereo capture has to be a
power of two.  Now added a constraint to buffer bytes.
Also removed unnecessary #if 0 lines.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
hifive-unleashed-5.1
Rene Herman 2007-03-28 15:23:53 +02:00 committed by Jaroslav Kysela
parent d3091fad4a
commit b942cf815b
1 changed files with 3 additions and 8 deletions
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11
sound/pci/es1968.c
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@ -1554,10 +1554,7 @@ static int snd_es1968_playback_open(struct snd_pcm_substream *substream)
runtime->hw = snd_es1968_playback;
runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max =
calc_available_memory_size(chip);
#if 0
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1024);
#endif
spin_lock_irq(&chip->substream_lock);
list_add(&es->list, &chip->substream_list);
spin_unlock_irq(&chip->substream_lock);
@ -1613,10 +1610,8 @@ static int snd_es1968_capture_open(struct snd_pcm_substream *substream)
runtime->hw = snd_es1968_capture;
runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max =
calc_available_memory_size(chip) - 1024; /* keep MIXBUF size */
#if 0
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1024);
#endif
snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
spin_lock_irq(&chip->substream_lock);
list_add(&es->list, &chip->substream_list);
spin_unlock_irq(&chip->substream_lock);