261 		snd_pcm_period_elapsed(chip->substream);  in cx23885_audio_irq()
320 static int snd_cx23885_pcm_open(struct snd_pcm_substream *substream)  in snd_cx23885_pcm_open()  argument
322 	struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream);  in snd_cx23885_pcm_open()
323 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_cx23885_pcm_open()
336 	chip->substream = substream;  in snd_cx23885_pcm_open()
358 static int snd_cx23885_close(struct snd_pcm_substream *substream)  in snd_cx23885_close()  argument
367 static int snd_cx23885_hw_params(struct snd_pcm_substream *substream,  in snd_cx23885_hw_params()  argument
370 	struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream);  in snd_cx23885_hw_params()
374 	if (substream->runtime->dma_area) {  in snd_cx23885_hw_params()
376 		substream->runtime->dma_area = NULL;  in snd_cx23885_hw_params()
412 	substream->runtime->dma_area = chip->buf->vaddr;  in snd_cx23885_hw_params()
413 	substream->runtime->dma_bytes = chip->dma_size;  in snd_cx23885_hw_params()
414 	substream->runtime->dma_addr = 0;  in snd_cx23885_hw_params()
427 static int snd_cx23885_hw_free(struct snd_pcm_substream *substream)  in snd_cx23885_hw_free()  argument
430 	struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream);  in snd_cx23885_hw_free()
432 	if (substream->runtime->dma_area) {  in snd_cx23885_hw_free()
434 		substream->runtime->dma_area = NULL;  in snd_cx23885_hw_free()
443 static int snd_cx23885_prepare(struct snd_pcm_substream *substream)  in snd_cx23885_prepare()  argument
451 static int snd_cx23885_card_trigger(struct snd_pcm_substream *substream,  in snd_cx23885_card_trigger()  argument
454 	struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream);  in snd_cx23885_card_trigger()
481 	struct snd_pcm_substream *substream)  in snd_cx23885_pointer()  argument
483 	struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream);  in snd_cx23885_pointer()
484 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_cx23885_pointer()
495 static struct page *snd_cx23885_page(struct snd_pcm_substream *substream,  in snd_cx23885_page()  argument
498 	void *pageptr = substream->runtime->dma_area + offset;  in snd_cx23885_page()