C++ (Cpp) snd_pcm_indirect2_playback_transferの例

コード例 #1

ファイル: pcm-indirect2.c プロジェクト: MiniBlu/cm11_kernel_htc_msm8974a3ul

void
snd_pcm_indirect2_playback_interrupt(struct snd_pcm_substream *substream,
				     struct snd_pcm_indirect2 *rec,
				     snd_pcm_indirect2_copy_t copy,
				     snd_pcm_indirect2_zero_t zero)
{
#ifdef SND_PCM_INDIRECT2_STAT
	rec->irq_occured++;
#endif
	
	rec->hw_ready = 1;

	snd_pcm_indirect2_playback_transfer(substream, rec, copy, zero);

	if (rec->min_periods >= rec->min_multiple) {
#ifdef SND_PCM_INDIRECT2_STAT
		if ((rec->min_periods / rec->min_multiple) > 7)
			snd_printk(KERN_DEBUG
				   "STAT: more than 7 (%d) mul_adds - too big "
				   "to save!\n",
				   (rec->min_periods / rec->min_multiple));
		else
			rec->mul_adds[(rec->min_periods /
				       rec->min_multiple)]++;
		rec->mul_elapsed_real += (rec->min_periods /
					  rec->min_multiple);
		rec->mul_elapsed++;
#endif
		rec->min_periods = (rec->min_periods % rec->min_multiple);
		snd_pcm_period_elapsed(substream);
	}
}

コード例 #2

ファイル: pcm-indirect2.c プロジェクト: Core2idiot/Kernel-Samsung-3.0...-

/*
 * helper function for playback interrupt routine
 */
void
snd_pcm_indirect2_playback_interrupt(struct snd_pcm_substream *substream,
				     struct snd_pcm_indirect2 *rec,
				     snd_pcm_indirect2_copy_t copy,
				     snd_pcm_indirect2_zero_t zero)
{
#ifdef SND_PCM_INDIRECT2_STAT
	rec->irq_occured++;
#endif
	/* hardware played some bytes, so there is room again (in fifo) */
	rec->hw_ready = 1;

	/* don't call ack() now, instead call transfer() function directly
	 * (normally called by ack() )
	 */
	snd_pcm_indirect2_playback_transfer(substream, rec, copy, zero);

	if (rec->min_periods >= rec->min_multiple) {
#ifdef SND_PCM_INDIRECT2_STAT
		if ((rec->min_periods / rec->min_multiple) > 7)
			snd_printk(KERN_DEBUG
				   "STAT: more than 7 (%d) mul_adds - too big "
				   "to save!\n",
				   (rec->min_periods / rec->min_multiple));
		else
			rec->mul_adds[(rec->min_periods /
				       rec->min_multiple)]++;
		rec->mul_elapsed_real += (rec->min_periods /
					  rec->min_multiple);
		rec->mul_elapsed++;
#endif
		rec->min_periods = (rec->min_periods % rec->min_multiple);
		snd_pcm_period_elapsed(substream);
	}
}