From dddefd0d706da7d981e8e397231df257f0122a49 Mon Sep 17 00:00:00 2001 From: Joachim Foerster Date: Mon, 5 Nov 2007 15:48:36 +0100 Subject: [ALSA] [ML403-AC97CR] Fix capture/periodic overrun bug We have to do fairly accurate counting of the minimal periods, instead of being lazy and just setting the number to zero as soon as one period elapses. Signed-off-by: Joachim Foerster Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/drivers/pcm-indirect2.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) (limited to 'sound/drivers/pcm-indirect2.c') diff --git a/sound/drivers/pcm-indirect2.c b/sound/drivers/pcm-indirect2.c index 6a829cd03dde..660157d49422 100644 --- a/sound/drivers/pcm-indirect2.c +++ b/sound/drivers/pcm-indirect2.c @@ -403,7 +403,7 @@ snd_pcm_indirect2_playback_interrupt(struct snd_pcm_substream *substream, rec->min_multiple); rec->mul_elapsed++; #endif - rec->min_periods = 0; + rec->min_periods = (rec->min_periods % rec->min_multiple); snd_pcm_period_elapsed(substream); } } @@ -568,24 +568,8 @@ snd_pcm_indirect2_capture_interrupt(struct snd_pcm_substream *substream, rec->mul_elapsed_real += (rec->min_periods / rec->min_multiple); rec->mul_elapsed++; - - if (!(rec->mul_elapsed % 4)) { - struct snd_pcm_runtime *runtime = substream->runtime; - unsigned int appl_ptr = - frames_to_bytes(runtime, - (unsigned int)runtime->control-> - appl_ptr) % rec->sw_buffer_size; - int diff = rec->sw_data - appl_ptr; - if (diff < 0) - diff += rec->sw_buffer_size; - snd_printk(KERN_DEBUG - "STAT: mul_elapsed: %d, sw_data: %u, " - "appl_ptr (bytes): %u, diff: %d\n", - rec->mul_elapsed, rec->sw_data, appl_ptr, - diff); - } #endif - rec->min_periods = 0; + rec->min_periods = (rec->min_periods % rec->min_multiple); snd_pcm_period_elapsed(substream); } } -- cgit v1.2.3