99 static int psc_dma_hw_free(struct snd_pcm_substream *substream)  in psc_dma_hw_free()  argument
101 	snd_pcm_set_runtime_buffer(substream, NULL);  in psc_dma_hw_free()
111 static int psc_dma_trigger(struct snd_pcm_substream *substream, int cmd)  in psc_dma_trigger()  argument
113 	struct snd_soc_pcm_runtime *rtd = substream->private_data;  in psc_dma_trigger()
115 	struct snd_pcm_runtime *runtime = substream->runtime;  in psc_dma_trigger()
116 	struct psc_dma_stream *s = to_psc_dma_stream(substream, psc_dma);  in psc_dma_trigger()
125 			substream->pstr->stream, runtime->frame_bits,  in psc_dma_trigger()
140 		if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)  in psc_dma_trigger()
158 			substream->pstr->stream, s->period_count);  in psc_dma_trigger()
163 		if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)  in psc_dma_trigger()
173 			substream->pstr->stream, cmd);  in psc_dma_trigger()
211 static int psc_dma_open(struct snd_pcm_substream *substream)  in psc_dma_open()  argument
213 	struct snd_pcm_runtime *runtime = substream->runtime;  in psc_dma_open()
214 	struct snd_soc_pcm_runtime *rtd = substream->private_data;  in psc_dma_open()
219 	dev_dbg(psc_dma->dev, "psc_dma_open(substream=%p)\n", substream);  in psc_dma_open()
221 	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)  in psc_dma_open()
226 	snd_soc_set_runtime_hwparams(substream, &psc_dma_hardware);  in psc_dma_open()
231 		dev_err(substream->pcm->card->dev, "invalid buffer size\n");  in psc_dma_open()
235 	s->stream = substream;  in psc_dma_open()
239 static int psc_dma_close(struct snd_pcm_substream *substream)  in psc_dma_close()  argument
241 	struct snd_soc_pcm_runtime *rtd = substream->private_data;  in psc_dma_close()
245 	dev_dbg(psc_dma->dev, "psc_dma_close(substream=%p)\n", substream);  in psc_dma_close()
247 	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)  in psc_dma_close()
264 psc_dma_pointer(struct snd_pcm_substream *substream)  in psc_dma_pointer()  argument
266 	struct snd_soc_pcm_runtime *rtd = substream->private_data;  in psc_dma_pointer()
271 	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)  in psc_dma_pointer()
278 	return bytes_to_frames(substream->runtime, count);  in psc_dma_pointer()
282 psc_dma_hw_params(struct snd_pcm_substream *substream,  in psc_dma_hw_params()  argument
285 	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);  in psc_dma_hw_params()
316 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {  in psc_dma_new()
318 				size, &pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->dma_buffer);  in psc_dma_new()
323 	if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {  in psc_dma_new()
325 				size, &pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->dma_buffer);  in psc_dma_new()
333 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)  in psc_dma_new()
334 		snd_dma_free_pages(&pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->dma_buffer);  in psc_dma_new()
345 	struct snd_pcm_substream *substream;  in psc_dma_free()  local
351 		substream = pcm->streams[stream].substream;  in psc_dma_free()
352 		if (substream) {  in psc_dma_free()
353 			snd_dma_free_pages(&substream->dma_buffer);  in psc_dma_free()
354 			substream->dma_buffer.area = NULL;  in psc_dma_free()
355 			substream->dma_buffer.addr = 0;  in psc_dma_free()