31 		struct snd_pcm_substream *substream;  in pcsp_call_pcm_elapsed()  local
32 		substream = pcsp_chip.playback_substream;  in pcsp_call_pcm_elapsed()
33 		if (substream)  in pcsp_call_pcm_elapsed()
34 			snd_pcm_period_elapsed(substream);  in pcsp_call_pcm_elapsed()
47 	struct snd_pcm_substream *substream;  in pcsp_timer_update()  local
57 	substream = chip->playback_substream;  in pcsp_timer_update()
58 	if (!substream)  in pcsp_timer_update()
61 	runtime = substream->runtime;  in pcsp_timer_update()
89 	struct snd_pcm_substream *substream;  in pcsp_pointer_update()  local
95 	substream = chip->playback_substream;  in pcsp_pointer_update()
96 	if (!substream)  in pcsp_pointer_update()
99 	period_bytes = snd_pcm_lib_period_bytes(substream);  in pcsp_pointer_update()
100 	buffer_bytes = snd_pcm_lib_buffer_bytes(substream);  in pcsp_pointer_update()
201 static int snd_pcsp_playback_close(struct snd_pcm_substream *substream)  in snd_pcsp_playback_close()  argument
203 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_close()
212 static int snd_pcsp_playback_hw_params(struct snd_pcm_substream *substream,  in snd_pcsp_playback_hw_params()  argument
215 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_hw_params()
218 	err = snd_pcm_lib_malloc_pages(substream,  in snd_pcsp_playback_hw_params()
225 static int snd_pcsp_playback_hw_free(struct snd_pcm_substream *substream)  in snd_pcsp_playback_hw_free()  argument
227 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_hw_free()
232 	return snd_pcm_lib_free_pages(substream);  in snd_pcsp_playback_hw_free()
235 static int snd_pcsp_playback_prepare(struct snd_pcm_substream *substream)  in snd_pcsp_playback_prepare()  argument
237 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_prepare()
242 		snd_pcm_format_physical_width(substream->runtime->format) >> 3;  in snd_pcsp_playback_prepare()
243 	chip->is_signed = snd_pcm_format_signed(substream->runtime->format);  in snd_pcsp_playback_prepare()
247 			snd_pcm_lib_buffer_bytes(substream),  in snd_pcsp_playback_prepare()
248 			snd_pcm_lib_period_bytes(substream),  in snd_pcsp_playback_prepare()
249 			snd_pcm_lib_buffer_bytes(substream) /  in snd_pcsp_playback_prepare()
250 			snd_pcm_lib_period_bytes(substream),  in snd_pcsp_playback_prepare()
251 			substream->runtime->periods,  in snd_pcsp_playback_prepare()
257 static int snd_pcsp_trigger(struct snd_pcm_substream *substream, int cmd)  in snd_pcsp_trigger()  argument
259 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_trigger()
278 						   *substream)  in snd_pcsp_playback_pointer()
280 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_pointer()
285 	return bytes_to_frames(substream->runtime, pos);  in snd_pcsp_playback_pointer()
310 static int snd_pcsp_playback_open(struct snd_pcm_substream *substream)  in snd_pcsp_playback_open()  argument
312 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_open()
313 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_pcsp_playback_open()
322 	chip->playback_substream = substream;  in snd_pcsp_playback_open()