284 static int siu_pcm_hw_params(struct snd_pcm_substream *ss,  in siu_pcm_hw_params()  argument
288 	struct device *dev = ss->pcm->card->dev;  in siu_pcm_hw_params()
293 	ret = snd_pcm_lib_malloc_pages(ss, params_buffer_bytes(hw_params));  in siu_pcm_hw_params()
300 static int siu_pcm_hw_free(struct snd_pcm_substream *ss)  in siu_pcm_hw_free()  argument
303 	struct siu_port	*port_info = siu_port_info(ss);  in siu_pcm_hw_free()
304 	struct device *dev = ss->pcm->card->dev;  in siu_pcm_hw_free()
307 	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)  in siu_pcm_hw_free()
314 	return snd_pcm_lib_free_pages(ss);  in siu_pcm_hw_free()
327 static int siu_pcm_open(struct snd_pcm_substream *ss)  in siu_pcm_open()  argument
330 	struct snd_soc_pcm_runtime *rtd = ss->private_data;  in siu_pcm_open()
334 	struct siu_port *port_info = siu_port_info(ss);  in siu_pcm_open()
337 	struct device *dev = ss->pcm->card->dev;  in siu_pcm_open()
346 	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in siu_pcm_open()
365 	siu_stream->substream = ss;  in siu_pcm_open()
370 static int siu_pcm_close(struct snd_pcm_substream *ss)  in siu_pcm_close()  argument
373 	struct device *dev = ss->pcm->card->dev;  in siu_pcm_close()
374 	struct siu_port *port_info = siu_port_info(ss);  in siu_pcm_close()
379 	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)  in siu_pcm_close()
392 static int siu_pcm_prepare(struct snd_pcm_substream *ss)  in siu_pcm_prepare()  argument
395 	struct siu_port *port_info = siu_port_info(ss);  in siu_pcm_prepare()
396 	struct device *dev = ss->pcm->card->dev;  in siu_pcm_prepare()
397 	struct snd_pcm_runtime 	*rt = ss->runtime;  in siu_pcm_prepare()
401 	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)  in siu_pcm_prepare()
408 	siu_stream->buf_bytes = snd_pcm_lib_buffer_bytes(ss);  in siu_pcm_prepare()
409 	siu_stream->period_bytes = snd_pcm_lib_period_bytes(ss);  in siu_pcm_prepare()
438 static int siu_pcm_trigger(struct snd_pcm_substream *ss, int cmd)  in siu_pcm_trigger()  argument
441 	struct device *dev = ss->pcm->card->dev;  in siu_pcm_trigger()
442 	struct siu_port *port_info = siu_port_info(ss);  in siu_pcm_trigger()
450 		if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)  in siu_pcm_trigger()
461 		if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)  in siu_pcm_trigger()
480 static snd_pcm_uframes_t siu_pcm_pointer_dma(struct snd_pcm_substream *ss)  in siu_pcm_pointer_dma()  argument
482 	struct device *dev = ss->pcm->card->dev;  in siu_pcm_pointer_dma()
485 	struct siu_port *port_info = siu_port_info(ss);  in siu_pcm_pointer_dma()
486 	struct snd_pcm_runtime *rt = ss->runtime;  in siu_pcm_pointer_dma()
490 	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)  in siu_pcm_pointer_dma()
512 	return bytes_to_frames(ss->runtime, ptr);  in siu_pcm_pointer_dma()