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[ALSA] Remove PCM sleep_min and tick

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The 'tick' in PCM is set (again) via sw_params.  And, nobody uses
this feature at all except for a command line option of aplay.
(This is literally 'nobody', as I checked alsa-lib API calls in all
 programs in major distros.)
Above all, if we need finer wake-ups for the position update, it's
basically an issue that the driver should solve, not tuned by each
application.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Takashi Iwai
2008-01-08 18:09:57 +01:00
committed by Jaroslav Kysela
parent 130755108b
commit 31e8960b35
5 changed files with 3 additions and 159 deletions
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11
sound/core/pcm.c
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@@ -359,7 +359,6 @@ static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry,
snd_iprintf(buffer, "rate: %u (%u/%u)\n", runtime->rate, runtime->rate_num, runtime->rate_den);
snd_iprintf(buffer, "period_size: %lu\n", runtime->period_size);
snd_iprintf(buffer, "buffer_size: %lu\n", runtime->buffer_size);
snd_iprintf(buffer, "tick_time: %u\n", runtime->tick_time);
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
if (substream->oss.oss) {
snd_iprintf(buffer, "OSS format: %s\n", snd_pcm_oss_format_name(runtime->oss.format));
@@ -387,7 +386,6 @@ static void snd_pcm_substream_proc_sw_params_read(struct snd_info_entry *entry,
}
snd_iprintf(buffer, "tstamp_mode: %s\n", snd_pcm_tstamp_mode_name(runtime->tstamp_mode));
snd_iprintf(buffer, "period_step: %u\n", runtime->period_step);
snd_iprintf(buffer, "sleep_min: %u\n", runtime->sleep_min);
snd_iprintf(buffer, "avail_min: %lu\n", runtime->control->avail_min);
snd_iprintf(buffer, "start_threshold: %lu\n", runtime->start_threshold);
snd_iprintf(buffer, "stop_threshold: %lu\n", runtime->stop_threshold);
@@ -764,12 +762,6 @@ static int snd_pcm_dev_free(struct snd_device *device)
return snd_pcm_free(pcm);
}
static void snd_pcm_tick_timer_func(unsigned long data)
{
struct snd_pcm_substream *substream = (struct snd_pcm_substream *) data;
snd_pcm_tick_elapsed(substream);
}
int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
struct file *file,
struct snd_pcm_substream **rsubstream)
@@ -876,9 +868,6 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
memset((void*)runtime->control, 0, size);
init_waitqueue_head(&runtime->sleep);
init_timer(&runtime->tick_timer);
runtime->tick_timer.function = snd_pcm_tick_timer_func;
runtime->tick_timer.data = (unsigned long) substream;
runtime->status->state = SNDRV_PCM_STATE_OPEN;