424 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_cx88_pcm_open()  local
433 	err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS);  in snd_cx88_pcm_open()
439 	runtime->hw = snd_cx88_digital_hw;  in snd_cx88_pcm_open()
444 		runtime->hw.period_bytes_min = bpl;  in snd_cx88_pcm_open()
445 		runtime->hw.period_bytes_max = bpl;  in snd_cx88_pcm_open()
473 	if (substream->runtime->dma_area) {  in snd_cx88_hw_params()
475 		substream->runtime->dma_area = NULL;  in snd_cx88_hw_params()
510 	substream->runtime->dma_area = chip->buf->vaddr;  in snd_cx88_hw_params()
511 	substream->runtime->dma_bytes = chip->dma_size;  in snd_cx88_hw_params()
512 	substream->runtime->dma_addr = 0;  in snd_cx88_hw_params()
528 	if (substream->runtime->dma_area) {  in snd_cx88_hw_free()
530 		substream->runtime->dma_area = NULL;  in snd_cx88_hw_free()
578 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_cx88_pointer()  local
586 	return runtime->period_size * (count & (runtime->periods-1));  in snd_cx88_pointer()
595 	void *pageptr = substream->runtime->dma_area + offset;  in snd_cx88_page()